摘要随着科学技术的不断发展，农业机械化技术也发展到了一个新的水平；随着农业机械化技术的发展和人们生活水平的提高，水果多功能加工机的改进成为目前消费者关心的热点问题。本文介绍了多功能加工机的研究意义、多功能加工机的研究现状，分析了多功能加工机的发展前景，详细讲述了机械式钢筋钢管多功能加工机的工作原理。这次和同组人员一起设计的机械式钢筋钢管多功能加工机能够更独特地更好地满足消费者的意愿，本着简单、方便、实用为原则一切从消费者的利益出发。而且，该多功能加工机祛除了以前多功能加工机出汁率底、果汁不清的弊端。单相串激式电动机充分体现了自动化、高效化、小型化、简单化、环保化等特点。最后，我相信我们所设计的这台集专业化、智能化，自动化、，高效化、小型化、简单化、环保化、安全性为一体的多功能加工机能够早日走进消费者的家庭。?? 关键词机械式钢筋钢管多功能加工机、电机选配、壳体设计、榨汁部件设计

毕业设计说明书外文摘要

The Mechanical Design of Centrifugal Juice Extractor

Abstract

With the development of science and technology, the agriculture mechanical technology has developed to a new level; With the development and improvement of agriculture mechanical technology and people’s living standard, the improvement of centrifugal juice extractor has become the consumer’s hot topic nowadays.This article introduced the research significance of centrifugal juice extractor, and the present research, also analyzed the development prospects of this machine, and narrated the work principle of the centrifugal extractor, also narrated the design process of single-phase series excitation type electric motor in double centrifugal extractor in detail. The centrifugal juice extractor, which was designed by my partners and I can satisfy our consumer’s demand uniquely and well, based on the principle of simple, convenient, practical and all for the consumer's benefit. Moreover, this machine get ride of the previous problem that is low juice rate, and unclear juice malpractice. The single-phase series excitation type electric motor fully manifested the automation, high efficiency, miniaturization, simplification, and the environmental protection.

Finally, I believed that this machine we designed which has the character of collection specialization, intellectualization, automation, high efficiency, miniaturization, simplification, environmental protection, and the security would be able to enter consumer's family soon.

Keywords centrifugal juice extractor, the choice of electromotor,

The design of rind, the design of squeeze parts

目前市场上各种品牌的钢管多功能加工机琳琅满目，但绝大多数钢管多功能加工机的主要结构、加工方式等都相似，通常大都采用外形、容积(搅拌容积或汁液杯的容积)和电机功率进行分类。按外形分，主要有座式、台式和手提式三种，目前以座式和台式钢管多功能加工机为主流机种，其实这两类钢管多功能加工机的外形比较相似，习惯称为台式钢管多功能加工机。按容积分，常见有0．5、0.6、0．7、0．8升等，容积大，一次可榨取的汁液多，但所需的电机功率也大，价格自然就较高。按电机功率分，主要有200W 、230W 、250W 、300W 、350W 等多种规格，普通座式和台式钢管多功能加工机常用200—300W 的串激电机。

2.2 钢管多功能加工机的现状分析

果汁工业化加工在国外已有百年的发展历史，已形成较完备的生产工艺，并开发有多种生产规模大、加工手段先进、产品质量优良的成套加工设备。

果汁生产的核心工序是加工工序，而钢管多功能加工机是加工工序的关键设备，钢管多功能加工机性能的优劣直接影响和决定着产品的质量、成本和加工企业的经济效益，其作用至关重要。因此，应客观、准确了解各种钢管多功能加工机的工作特点，以便做到正确、合理地选用，满足生产要求，以便尽快提高我国钢管多功能加工机的应用水平和制造水平,带动果汁加工业的发展,彻底解决种植业的原料加工问题。

以下是常用的几款钢管多功能加工机：

1）双锥盘钢管多功能加工机双锥盘钢管多功能加工机的钢管多功能加工机理是利用两个母线重合的伞状锥体的啮合滚动，使进入啮合区域的果糊受压，果汁通过伞状锥体表面的滤孔排出。但双锥盘钢管多功能加工机压榨时作用时间短，对浆状物料的夹持性能差，排汁面积相对较小，排汁孔大，因此不适用于家庭水果加工。

2）带式钢管多功能加工机? ? 带式钢管多功能加工机的工作原理是利用两条张紧的环状网带夹持果糊后绕过多级直径不等的榨辊，使得绕于榨辊上的外层网带对夹于两带间的果糊产生压榨力，从而使果汁穿过网带排出。带式钢管多功能加工机具有结构简单、工作连续、生产率高、通用性好、造价适中等特点，但带式钢管多功能加工机的主要缺点是加工作业开放进行，果汁易氧化褐变，卫生条件差；排汁不畅；网带孔隙易堵。

3）压板式钢管多功能加工机? ? 压板式钢管多功能加工机配置一个工作时旋转的圆柱形机筒，机筒的柱面上开有长缝用于汁液透过，机筒轴心装有一双向丝杠，丝杠上的转动带动机筒两端的圆形压板相向移动。压榨时物料用泵充入机筒内，压板由两端向中间移动挤压机筒内的物料，汁液通过机筒壁上的长缝排出，压榨结束渣从机筒中部的开口排出。但压板式钢管多功能加工机的压榨力较小，汁液的透过面积较低[5]。

2.3 对新型钢管多功能加工机设计的一般要求

目前我国的钢管多功能加工机普遍存在着出汁率低、出汁不清等问题，迫切需要进行结构改进和技术提高。?因此，新型钢管多功能加工机设计必须建立在提高工作效率，增加出汁率，提高果汁质量的基础上对原钢管多功能加工机在先前技术上的改进。同时还要尽可能使操作简单满足不同年龄段的消费者，并保证操作的安全性。在经济合理的前提下考虑能够实现综合利用，一机多用。与其他钢管多功能加工机产品相比，要求做到坚固耐用，安全可靠，使用维修方便。在满足设计技术要求的前提下，尽可能提高产品和零部件的标准化、系列化和通用化程度。

2.4 钢管多功能加工机的发展前景

同咖啡机、面包机、煮蛋器这些西式小家电一样，钢管多功能加工机相对传统的生活必需品而言，更多的价值体现在人们对精致生活的追求上。据了解到，目前钢管多功能加工机的消费群体主要有两类：一类是有孩子或老人的家庭，孩子容易挑食而老人牙齿不好，自己榨果汁可以满足他们摄入足够的营养；另一类是追求时尚及生活品位的年轻人，钢管多功能加工机满足了他们崇尚个性口味的需求。随着生活质量的提高，消费者的心态由最基本的生活需要开始向营养健康的品味生活过渡，这为钢管多功能加工机更加普及提供了可能。

据国家统计局资料，全国食品工业总产值1995年已上升为全国各行业之首。食品工业的可持续发展必然带动食品机械行业的发展，据统计1999年，全国专业食品加工机械约有2300多种已成机械工业的十大产业之一[4]。

据业内专家预测，中国小家电市场前景广阔，随着人们生活水平的提高，中国钢管多功能加工机市场会有很大的市场空间。

3 离心式钢管多功能加工机的总体设计方案

本次设计的是一种集智能化，自动化、高效化、小型化、简单化、环保化为一体的较先进的离心式钢管多功能加工机。整个装置的动力源采用一个250W的单相串激式电动机，空载转速是19000r/min。

3.1 钢管多功能加工机的基本结构

整机由钢管多功能加工机壳体、加工部件和电动部件三大部分组成。

3.1.1钢管多功能加工机壳体

钢管多功能加工机壳体由端盖、离心外壳、电机外壳、底座、果汁杯、果渣盒等组成。端盖、果汁杯、果渣盒均由透明聚碳酸酯塑料制成具有强度高、耐冲击、不易碎等特点。离心外壳、电机外壳、底座则由工程塑料ABS制成，其特点是无毒、无臭、坚韧、质硬、刚性好。叶片加工刀安装在加工杯中央，用高铬不锈钢制成，刀轴下端装有斜齿轮轴伸，与电动机输出轴连接。

3.1.2加工部件

加工部件由粉碎刀片、金属过滤网等组成。刀片内有锋利的刀孔，经实验证明这种刀片能够更好地削碎水果。刀片由高铬不锈钢制成，采用斜齿轮轴伸与输出轴连接。

3.1.3电动部件

电动部件主要是为钢管多功能加工机提供动力，有250W单相交流串激式电机、输出轴、电机外壳、底座和电源开关等组成。串激式电机的结构如图1所示。整机由转轴、定子、定子绕组、转子、转子绕组、换向器和炭刷等组成。串激式电机的典型的特点是功率大、效率高、转速随负载力矩变化而变化，当负载减小时，串激式电机转速增加，最高可达19000r/min左右。为避免转速过高造成电机烧坏，一般不允许空载起动，同时也不宜加入太多水果，以免使电机超载而温升过高[8]。

3.2 离心式钢管多功能加工机的工作原理

? 离心式汁机可对果糊产生很高的离心力，可更好地完成水果和蔬菜的加工作业。离心钢管多功能加工机的主要工作原理是先利用刀片将水果片粉碎，然后利用高速旋转产生强大的离心力来分离果汁和果渣，果汁透过回转篮的金属网而流入果汁杯，果渣则被离心力甩出回转篮而进入果渣盒，它的工作流程是原料→选果→清洗→加工→破碎→离心→过滤→果汁和果渣。 3.3 总体设计要点

电动机的选择

加工部件的设计

?钢管多功能加工机壳体的设计

电机的选择

4.1 电动机的选择要求

合理的选择电动机是正确使用的先决条件。选择恰当，电动机就能安全、经济、可靠地运行；选择得不合适，轻者造成浪费，重者烧毁电动机。选择电动机的内容包括很多，例如电压、频率、功率、转速、启动转矩、防护形式、结构形式等，但是结合钢管多功能加工机的具体情况，需要选择的通常只是功率、转速、等几项比较重要的内容，因此在这里介绍一下电动机的选择要求。

电动机类型的选择要从负载的要求出发，考虑工作条件，负载性质、生产工艺、供电情况等，尽量满足下述各方面的要求：

1）机械特性

由电动机类型决定的电动机的机械特性与工作机械特性配合要适当，机组稳定工作；电动机的起动转矩、最大转矩、牵入转矩等性能均能满足工作机械的要求。

2）功率

电动机的功率，应根据生产机械所需要的功率来选择，尽量使电动机在额定负载下运行。避免出现“小马拉大车”现象或“大马拉小车”现象造成不必要的损失和浪费。

3）转速

电动机的转速满足工作机械要求，其最高转速、转速变化率、稳速、调速、变速等性能均能适应工作机械运行要求。

4）运行经济性

从降低整个电动机驱动系统的能耗及电动机的综合成本来考虑选择电动机类型，针对使用情况选择不同效率水平的电动机类型；对一些使用时间很短、年使用时数也不高的机械，电动机效率低些也不会使总能耗产生较大的变化，所以并不注重电动机的效率：但另一类年利用小时较高的机械，如空调设备、循环泵、冰箱压缩机等，就需要选用效率高的电动机以降低总能耗[7]。

5）价格低廉

在满足工作机械运行要求的前提下，尽可能选用结构简单、运行可靠、造价低廉的电动机。

4.2 电动机类型的选择

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内容简介：: The Honest Guide to Choosing a JuicerIn the 1930s a chap called Dr Norman Walker invented a juicer which firstly grated and then cut produce. The resulting mass was then to be put into a linen bag and placed under a hydraulic press, directing juice down a spout. (Dr Walker lived to 108 years of age - he died in a surfing accident). You can still purchase this 2-stage Norwalk machine for around $2000, which is a very prohibitive price indeed. And most of the juicers you will find on sale havent evolved much since then, which brings us to.Centrifugal juicers. Centrifugal juicers work by using a flat cutting blade on the bottom of a rapidly spinning strainer. Cut produce is flung out over the sides of the strainer. Due to the centrifugal force, juice then passes through tiny holes in the strainer. Features intrinsic to this design include: The strainers are HUGE and a pain to clean The cutting blades are tricky to clean and some are particularly dangerous to handle The process incorporates mass oxidization and therefore a dying and brown juice There is a lot of unpleasant froth Leafy green vegetables are impossible, so no herbs and no wheatgrass Pulp builds up in the strainer and efficiency falls rapidly The centrifugal force pushes a lot of pulp through the strainer, resulting in a lot of pulp in the juice These juicers can seriously damage your hearing, and wont be popular in a terraced house or flat, or if anyone is still in bedUltimately, the technology inside a centrifugal juicer is not unlike that of a tree cutter. Theyre spinning at up to10000rpm. The resulting frictional heat is not good for your juice. Neither is 10000rpm an easy task for a motor when under constant resistance. The amount you can spend on a centrifugal juicer varies from 30 to over 100 - so what are you paying for? Well, in truth, mostly brand name and aesthetic design. While the cheapest of machines are certainly week hearted and not going to last you long, experience and feedback tells us that more expensive machines dont necessarily last any longer. In fact, if everyone who bought a juicer used their machine every day we think nearly every machine on the market would be withdrawn because with daily usage virtually all machines would fail within their first year, let alone within warranty. This guide has been written as a result of the cumulative experience of several people, spanning over 4 years and many many juices. In this guide you will: discover clearly the best type of juicer for you pinpoint the best machine in each category be saved from the confusion of conflicting promotional material benefit from unique comparison charts and photos gain links to background information and in dependant reviewsAnd thats a brave statement for us to make but far braver is the warranty provided with juicers. Most people we speak to that have burnt out previous machines never even took it back. We live in a throw away society sadly, but its great for manufacturers. Another fact of society is how many of us shelve new products. In a recent survey juicers were found to be the most likely new item to be left in the cupboard, second only to the George Foreman style grills. We believe this is because of the above drawbacks of this style of juicer - as the high street centrifugal is by far the most purchased type of juicer in the UK. Centrifugal juicers that handle whole produce. WOW! what a feature, whole apples, whole heads of celery. Having said that, impatience isnt the highest virtue. One health food author tells us its great being able to put in a whole head of celery, but the motor keeps burning out and I have to take it back to the shop. Ultimately, this feature is one of convenience, but the process still destroys the juice, and you still have to clean up after every glass produced as the strainer clog seven more rapidly.The juicers themselves have had no technical redesign other than a widening of their feeding chute, so there has been no consideration of increased motor resistance. Also, a wide feeding chute is extremely dangerous an adult could loose their whole arm in there. Also, anything that doesnt fill the chute rattles all over the place, like a simple carrot. Generally there is immense volumes of foam and the juicers dump a lot of pulp into the juice which then requires straining. How many juicers do you want to buy this year? One last word on whole fruit juicing: animals that live inside fruit. Think about it, even if your juicer can take whole apples, maybe its worth quartering each apple first. worm juice anyone? Centrifugal juicers with pulp ejection. A relatively small market place that holds a few domestic machines, and mostly commercial machines used by juice bars. Juice bars need juice QUICK (which is why they have to sacrifice quality and use the centrifugal process) and they cant afford to continually disassemble their juicer to clean it. In a centrifugal juicer that has pulp ejection, the sides of the straining basket are cleverly slanted, the air flow sending the pulp produced automatically into a collection basket without the need for cleaning. The process IS NOT full-proof by a long way, and offers no inherent improvement on all the flaws of centrifugal juicing already mentioned. Please be aware that stringy, fibrous produce and wheatgrass is still not a success in this type of juicer. If youre looking to incorporate these into your juice read on.A revolution occurred in the 1950s when Plastaket invented the Champion, the worlds first masticating juicer. Masticate means to chew, and as the Champion is the only juicer with teeth we feel its the only masticating juicer available. Many other web sites will class gear juicers as masticators. We have put these into their own category below. The Champion juicer gives a greater yield then centrifugal juicers and the degradation isnt nearly as severe. But its cutter is running at 1425rpm - and that can be a problem. Leafy veg is still a NO - only now it gets caught in the teeth! If you juice slowly (or the teeth are clogged with plant fibers) you get warm foamy juice as the cutter is spinning rapidly against the produce that hasnt yet cleared the juicing chamber. When the Champion arrived on the scene over 50 years ago, Siegfried Gursche, author of Healing with Herbal Juices, described as a tragedy the extremely high speed of the juicer which causes lots of friction which heats and sometimes even steams the juice. Some nutrients, especially all live enzymes, are destroyed by heat. Where the Champion excels (in terms of speed of throughput and yield) is with root vegetables. If youre planning to process A LOT of carrots, then the Champion would be a consideration for you (i.e. the Gerson Diet). Although, in our opinion youd still be better off with a gear juicer, and you should make green juices your main stay. To read more about why the Champion should be nominated for retirement, click here. Now lets take a jump into the 1990s. Suddenly an innovation occurred in juicing.Low speed, gear juicersGear juicers operate anywhere between 70 and 120 r/min. Thus, in a gear juicer: Produce is crushed - No cutting or spinning Enzymes are preserved AMAZING green juices become possible Your juice is cold, as it should be You lift a glass of living juice every time They are the easiest of all juicers to clean (dont let anyone lie to you and claim that any juicer mentioned previously in this guide is easy to clean theyre not).As a visual representation of the differences we have prepared two glasses of apples juice - one prepared in a single gear juicer, the other in a centrifugal juicer. The rapid oxidization of apple juice makes this a good test for the colour and therefore vitality of the juice. Other produce would show similar results for the centrifugal produced juice, but typically the single gear prepared juice would exhibit less or no foam. E.g. orange juice is entirely foam in a centrifugal juicer and zero foam in a single gear juicer. Many people have said or written that you need to drink juice produced in a centrifugal juicer straight after producing it. Usually it is explained that as the juice deteriorates you can benefit from the juice by consuming it straight away. PLEASE stop and think. If a process causes destruction, removing it from your sights quickly does not alter the destruction. If you want to juice for health you must produce the juice yourself in a low speed gear juicer. This is the only way to gain benefit from the abundance of nutrition available in fresh fruits any vegetables when their fibre is safely separated. No other Apple juice extracted with a Single Gear Juicer Has a healthy, even color, showing that its full of enzymes and nutrients 20% more juice yield Less foam Apple juice extracted with a Centrifugal Juicer Has oxidized and turned clear brown -only water content with no enzymes andnutrients Poor juice yield A lot of foam domestic or commercial juice preparation will give you the benefits of living enzymes,vitamins, minerals and other phytonutrients.So now that were totally convinced that its only worth drinking fresh juice if prepared using a gear juicers, weare left with one question - single gear or twin gear?Single gear juicersA single gear juicer has a single rotating screw or auger, with an ever narrowing thread along which produce follows until crushed inside a screen which allows juice through and pulp to be ejected at the tip. This process is very similar to the worm gear of a meat grinder. The auger is divided into a two phase process of first crushing and then wringing-out the produce against the wall of a conical filter screen. Single gear juicing offers you top quality juice with ultimate friendliness of use. You wont ever be put off using a single gear juicer, it will forever remain a joy. In the UK the original Oscar 502 has just been made available again as the Oscar Living Juicer, a machine youll see in juice bars like Planet Organic. There are a hoard of other single gear juicers available now, including the LE quip Visor, Solo Star and Live Please take note that despite superiority claims of the enzyme content produced by different gears juicers, there is NO evidence or test ever been done to identify if one machine is more successful than another in this area. It seems that all promotional material for this type of juicer, including unedited web copy, claims superiority. We would advise not basing your purchase around such statements. Additionally there is no evidence that slower is better (relative to this category, i.e. 70rpm is not better than 120rpm). TRUE, slow speed has immense benefits over thousands of revs per minute, but the small differences in speed between juicers in this category are not cause for you to choose the slowest.Single gear juicing was invented at the beginning of the nineties with the introduction of the Oscar 502, designed and Manufactured by a Korean company named Dong Ah which was founded by two business partners in 1988. One of the two businessmen betrayed the other, set up a nearby manufacturing facility, started a new company called Dong A Oscar (cheeky, hey?) and within a short time had produced the Matstone juicer - a copy of the Oscar design. Outside of Korea the machine was branded the Samson, and globally, Samson agents touted their machine as the new model Oscar. They cut a number of corners to make their Matstone juicers more affordable and pushed heavily with their marketing. In one country, an ex-employee of the Oscar distributor stole $75,000 and the customer database before setting himself up as the Samson distributor. In the UK, where there was no resident Oscar distributorship, the Oscar was long forgotten, many people believing to today that their Samson/Matstone machine is the new Oscar. The story nearly finished with Dong A Oscar falling to bankruptcy on 26th September 2005.Enzyme juicers. These have not proved as efficient or reliable as the Oscar brand. We recommend looking closely at warranty durations, as the Oscar Living Juicer offers 12 years, and only one other machine beats that. Dual stage single auger juicers The latest innovation in single gear juicers is a 3 phase extraction auger working inside a dual stage juicing screen. Upon the initial crushing of the produce, any released juice is directed through the first stage of the juicing screen into the juice collecting bowl. The crushed produce minus much of its juice then continues its way through the machine, where there is a finer holed screen to obtain not only a higher yield, but a near pulp free juice. The picture below compares a dual stage juicing screen (top) with a single stage juicing screen (bottom). Clicking on the picture will show alarger picture. This process is claimed to obtain up to 20% more juice than ordinary single gear juicers and mostly yields like a twin gear machine. A test with carrots yielded 26% more juice! With other single auger juicers, the juice is only produced in the second stage, requiring larger holes in the juicing screen. Consequently a sieve is provided with other single gear juicers covering the juice collecting bowl to catch pulp. As juice is allowed to exit at the first stage this type of juicer doesnt suffer from a number of problems that affect virtually all other juicers: leaks, especially into the locking clip and motor housing (this causes long term problems with the gearbox as fruit acids reach the lubricating grease within the gearbox causing extra noise and eventually a breakage. additionally locking clips / face plates of juicers are tricky to clean and add toyour time). poor performance with soft fruits (soft fruits hold more juice extractable at the first stage. When trying to pass this juice onto the second stage of ordinary single gear juicers, typically nothing happens at all and produce remains stationary in the juicing drum with the juice and all the auger does is stir it).There are only two dual stage single gear juicers available on the market, the Solo Star II and the Oscar 900 VitalMax. Youll note that both brands have been worn on earlier models. We prefer the Oscar VitalMax for a number reasons, including a lighter/sleeker design, as well as being easier to use and clean. Also, both stages of the Oscar juicing screen are stainless steel where as the Solo Star II has a plastic first stage. Lastly, the Oscar VitalMax is the only juicer to hold a 20 year motor warranty. Now that is a brave warranty to implement. Oscar assure us that their machine has been tested beyond 10,000 hours of use. They insist we juice daily, and insist that they use the finest motor and components in the world. Perhaps some tell-tale signs of this quality reside in this machines performance, and quietness, as the VitalMax is most definitely the quietest machine weve used. Since Oscar have been in business since 1988 it is safe to trust their warranty offering too. Single gear juicer with NO juicing screen. The Oscar VitalMax is absolutely the most reliable, best performing, quickest to clean, easiest to assemble and use appliance of its type AND it has the least number of parts - just 4 plus the hopper! There is one single product in this category, the Live Enzyme juicer (which is an electric version of the inexpensive manual juicer known as the Easy Health). Both the manual and electric version were designed for use with greens, particularly wheatgrass exclusively. Due to the very high stringy fibre content of these foods they dont create pulpy juices, and thus a juicing screen is not necessary. However, the absence of a juicing screen on these machines is coupled with claims of juicing all produce and headlining of the time youll save not cleaning the screen. Proceed with caution. You will need to sieve, and softer produce is problematic. Ok if you like pulpy juice, but when you want just pure juice (without the pulp), the pulp quickly collects on the sieve clogging it up. If the sieve was integrated into the juicing drum then separated pulp would be deposited away from he juice, but with a sieve resting on the juice jug you have to empty it frequently and waste a lot of juice in doing so. This is very messy, especially with soft produce, including apples, and tomatoes will lead you to give up hope. Finally, two augers are provided with this juicer for different produce another unique feature. But presuming you require both, at some point you may wish to change the parts to juice the next item in your recipe. Messyagain.Below is a chart of the power (watts) of the 5 most popular single gear juicers. This is an important comparison, because each one of these juicers has a 38mm feeding chute, and thus has the same task to endure. Ultimately, the higher the power, the lower the motor wear of a single juicing task. The power of a machine is exhibited in the juicing performance too, but if you compare this with the warranty chart above you can see exactly what you are getting. People have always thought of the higher price tag equipment as too expensive. but what they dont realize. how many cars do you want to buy in the next 10 years? How many vacuum cleaners do you want to own? How many times do you want to buy a stereo? Or do you want to buy something and be partially dissatisfied with it because every time you use it, it breaks on you? Or do you want to do it once and do it right? After all, you know, you get what you paid for in the sense, not that you pay less money because in the long run you can pay more money. One of the things Ive always thought is that I hate buying junk. Because I end up buying it again. How many of you have bought many of the same product because you never bought a good one?The thing about the Oscar is - it still exists, not just as a legend, but people out there still own their Oscar 502 and its seen them through a decade. Even Dr Gillian McKeith is pictured using an Oscar in her books - shes owned that juicer forever. The Oscar is the juicer of choice of The Juice Master, Rose Elliot, and many many more - people who only want to buy once and get it right so they maintain their image when recommending theproduct to others. Twin gear juicers .So why twin gear? Well, twin, inward rotating gears have traditionally allowed for a greater juice yield. However, assembly is a little more fiddle-some with more parts, the price escalates considerably, and feeding in produce is a slower affair than with single gear juicers. If youve used a centrifugal juicer then a single gear may feel a little slow, but a twin gear will surprise you, as many types of produce have to be forced in between the gears. Basically, a twin gear juicer performs its results by operating its gears at 0.1mm apart, around 4/1000 of an inch. Whilst wheatgrass, herbs, and other leafy produce will self feed as the gears pull inward, a carrot would require force. This is an important note for anyone who has any weakness in their forearms and especially wrists - if youre unable to use a hand trowel in the garden, then sadly a twin gear juicer may be too much for you. This design of twin gear juicers often makes soft produce a challenge. Fruit remains feasible in a twin gear juicer, but juiced alone would require some extra patience. Twin gear juicers always provide a larger holedscreen for fruits. When ever a web site tells you that the gears of their juicer operate closer than anyone elses, please be aware that they all operate at this distance, they all give the same figures and make the same uniqueness claim.Twin Gear juicing was invented by the designer of the current Green Star Juicer (Mr Jong G. Kim of Green Power), which was originally named the Green Life. Massive competition in Korea saw most juicer manufacturers go out of business, including Mr Kim. As Green Power had recently entered the international market, its parts suppliers joined forces to recover the debts of their customer. Simply, they sold off he moulds to Tribest (an American distributor) who have continued to market the machine despite there being no development or after service at source - in Korea. Mr Kim however continued improving upon his design over dozens of models. This tweaking has resulted in their latest offering (some 7 years newer than the Green Star). Under the banner of multiple names, the GPT-1303 is either a Green Power, Kempo or a Hippocrates juicer (slight variations on model number occur for each brand name). All juicers are identical, except that the Green Power is supplied with a video, and the Hippocrates is supplied with the video and with a copy of the Hippocrates Health Programme, written by Brian R. Clement. The latest model Green Power Hippocrates juicer produces approximately 25% more juice from wheatgrass than the Green Star, which it does so in approximately 15% less time, and without constantly backing up (forcing you to stop and reverse - or disassemble, clean and restart). Additionally the machine is smaller, lighter, has two less parts to assemble, is easier to clean, and simply doesnt incur regular part breakages like the Green Star. Below are the twin gears of the two magnetic twin gear juicers. On the left is the Greenstar, on the right the Greenpower Hippocrates. Notice there is no nylon at the front of the Greenstar gears to prevent the metal from colliding. Oddly enough there was in the original design but to simplify and lower the cost of manufacture it was removed. Mr Kim calls this the clean gear and now it is only available on his latest invention. What one cannot see but is massively important is the magnets inside the gears. As the original purpose of magnets was to prevent the gears from colliding they were optimized for each gear to oppose each other - not to enhance the mineral content of the final juice as is now widely accepted as their purpose. Thus, the Hippocrates has an unrivalled magnetic capability, more details of which are below. Excellent global marketing of the Green Star continues to see this as the best known twin gear juicer. We know of dozens of customers who have upgraded from their Green Star - and are now happy with a Hippocrates. Initially concerned that the Hippocrates isnt heavy duty like the Green Star, they quickly realize that the size and weight of their old machine is of no more use than excess weight on a person. We even have customers who have retired their Green Star in favour of the Oscar VitalMax! If your interest is mainly green/non-fruit juices, then twin gear juicers will offer you a great juice and the produce is very easy to feed. Please note however that the Oscar VitalMax juicer offers twin gear performance across all produce types, making the Twin Gear marketplace more of a specialist one. If there is a cheaper, easier to use machine the why should anyone bother with twin gear? The answer is MAGNETS. Yes, there are magnets in the Green Power Juice Extractor. At the core of each rotating twin gear is a series of in-line magnets. When the twin gears are properly aligned, the two series of magnets produce a focused magnetic field of 2600 gauss in the minute 4/1000 inch clearance between the twin gears. As the juice flows through this focused magnetic field, the water molecule clusters within the juice are opened allowing them to recombine with minerals such as calcium, potassium, sodium, and magnesium into new molecular structures. This magnetic field process aids in extracting a greater percentage of minerals from the produce during the juicing process and is instrumental in keeping those minerals in a suspended colloidal form the body can use for a longer length of time. An independent test showed that juice from a combination of celery and green leafy vegetables contained: 95.4% more calcium 173.3% more iron 96.95% more magnesium 61.4% more potassium 205% more silicon 108.2% more zinc Thats it. Thats your reason to purchase Greenpower Magnetic Twin Gear Juice Extractor. The other contenders in Twin Gear juicing are the Twin Health and the Angel. The feature that sets these juicers aside is their 100% stainless steel gears, and auto-reverse function. Please note that neither machine uses magnets in its twin gears and thus ultimately functions like an Oscar VitalMax only with more cumbers ome parts and more expense to you, the buyer. Both the Twin Health and Angel juicers use an embedded control panel rather than sturdy switches. Like in modern cars the number of electric faults not affecting the mechanics but still disabling your machine is frustrating and totally unnecessary. Our final word on the current Angel juicer is that it is being sold on hilarious claims that are badly translated from Korean (where there is no regulation) - vegetable marrow anyone? Thats a courgette or any other member of the squash family - not a secret nutrient you need. The claim goes this type of nutrient plays a significant role in the curing and regeneration of diseased cells in the body. Advertising Standards please. As for removal of pesticides, there has never been any test of this, and the motor warranty duration is disappointing. The Twin Health is physically bigger in every way than the Greenpower Hippocrates, just look at how much bigger its gears are over the Hippocrates! ). The gears of the Angel are bigger still, see below.The Angel has a bit of jaded history, an original inspirer in the juicing market the manufacturer made many mistakes that saw their product vanish from the marketplace until recent re-introduction. The Twin Health is in fact related to the Angel, because the manufacturer took on a lot of Angels research team when Angel had financial troubles. The Twin Health is essentially a plastic re-modeling of an early model Angel no longer available. The purpose of creating a 100% stainless steel machine (not just the gear, but the entire machine) is to create the highest possible level of sanitation. The Twin Health fails miserably on this note with its poorly thought out moldings. If the original Angel were to be available, we would give this a shining report. The machine would also have a price tag of around 1000. The current Angel is a more viable selling option for the manufacturer, with multiple painted and plated parts that eventually cause silver shiny flakes to come off. But this immensity makes a juicer difficult to handle, assemble & clean, and yet it doesnt yield a greater volume of juice. People truly requiring magnetic twin gear produced juice for healing are often week especially in their hands and wrists. Additionally, its gear teeth are totally blunt, compared with the slightly cusped teeth on the Greenpower Hippocrates, so produce is made even harder to feed in. Also, the Hippocrates has a significantly wider chute for feeding produce in - it has a square cross section - and at its widest point is 8mm wider than the chute of the Twin Health - making it noticeably faster and easier to feed in produce. The Twin health gears carry a lifetime warranty (being 100% stainless steel, this is an easy warrantee to uphold). The stainless-on-stainless implementation is not seen as a good idea as it is the stainless-on-nylon implementation of the Hippocrates Juicer that ensures the stainless steel parts never come into contact and pass metal shavings into the juice. The Twin Health marketing material points out that nylon in the gears is less durable and can crack. 选择榨汁机的诚实指南在1930的时候，一个叫做Dr Norman的步行者发明了首先磨碎和然后切开产物的一个榨汁机。得到的大量产物然后被投入一个亚麻制袋子并被安置在一个水压机之下, 指引汁液从下端的壶嘴处流出。(Dr 步行者居住对108 年纪- 他死了在一次冲浪的事故) 。您仍然可以购买这2-stage Norwalk 机器为大约$2000, 的确是一个让人们望而止步的价格。并且您将发现在销售中发现我们购买的大多数榨汁机从那以后并没有发生很大的改变。离心榨汁机运转时，用一把平的切口刀片安装在一台迅速地转动的过滤器的底部。裁减产物是扔在过滤器的边。由于离心力, 汁液然后通过过滤器上微小的孔。这个设计的内在特点有:1过滤器的清洗难度很大。2切口刀片的清洗有一定的危险性。3过程中包含大量的氧化,所以会有一些垂死的和褐色汁。4有很多令人感到不舒服的泡沫。5没有草药和芽草之类的所以绿叶蔬菜是不可能的。6纸浆积存在滤网上并且效率急剧下降。7离心力推了很多纸浆通过滤网,产生了大量的果汁。8这些果汁器能严重地损害你的听力, 也不会受欢迎,因为噪音在梯田的住宅或公寓,没有任何人能睡好。最后, 设计一个离心榨汁机，里面是不同于树木的切削刀的。它们转动在 10000r/min 。收效的摩擦热对您的汁液的不好。当一个马达在持续的抵抗之下10000r/min也不是一件容易的工作。你能在一个离心的果汁器上花费的数量在从30英镑至100英镑，因此你正在支付什么? 实际上, 主要品牌名字和审美设计。而最便宜的机器当然是不被你关注的和你不去持续的渴望,经验和反馈告诉我们更加昂贵的机器不一定会长期地工作下去。事实上, 如果大家买榨汁机并且每天都在使用他们的机器，我们认为几乎每个机器在市场会被撤出因为以每日用法实际上所有机器无法在他们的第一年之内, 让单独在保单之内。在最近一项榨汁机调查中被发现是最有可能留在厨房的新项目. 我们相信,这是由于上述的缺点, 这种风格的榨汁机作为高速离心，是迄今在英国被购买走的类型, 是处理整个的农产品的离心的果汁器。哇! 什么样的特征、整个的苹果, 芹菜的整个头，性能最高并不是最好的。一位保健食品作者告诉我们它的伟大在于它的伟大在于能够把一整头的芹菜榨好, 但电机就会被烧坏了,我们还要把他送到检修部。最后, 这个特点是一个便利, 但过程仍然毁坏汁液, 并且您必须仍然清扫在每块玻璃以后被生产作为过滤器障碍物更加迅速地。果汁器它们自己除了它们的逐渐加宽的滑槽之外还没有技术上的重新设计, 所以一直没有考虑增加运动阻力. 同时,一个宽的逐渐强烈的滑槽极端地危险，一个成人可以将他们的整个手臂放在那里。同时, 不填充滑槽的任何事到处嘎嘎响,像一棵简单的红萝卜。通常有许多大体积的泡沫，而且果汁器倾卸许多果肉进入挤出来的水果来汁液里。你想要今年买多少个果汁器？在整个的果汁上的一个最后的字: 动物会吃很多的水果。想想看,即使你的榨汁机可以榨整个苹果,或许它的价值不值每个苹果的四分之一。大多数商业机器用果汁做酒，相对较小的市场，是一个具有国内少数机器, 酒吧里的果汁要快(这就是为什么他们要牺牲质量和使用离心工艺)，他们要不断地拆开自己的榨汁机是保持清洁。在离心榨汁机，纸浆弹射，双方的紧张篮庇倾斜，气流送浆自动制作成一个篮子收集而不需要清洗。这一进程不能充分证明了漫长的道路，并提供并没改善所有的缺点，离心48%已经讲过。请注意，线状，纤维生产和蓝冰榨汁机也不是一个成功。如果你想找个纳入这些果汁，你要继续看完. 一个革命发生在1950年的时候发明plastaket冠军后,本届锦标赛的第一个咀嚼榨汁机. 当冠军是唯一的榨汁与牙齿,我们感到的只是咀嚼可用于榨汁机. 冠军榨汁机提供了更大的产量,然后离心果汁和退化不严重. 但其刀具运行于1425r/min ,可以说是一个问题。叶菜类青菜仍然是一个没有出现,现在只标出夹在牙齿中! 如果你慢慢榨汁(或牙塞满植物纤维) ,你将得到温暖泡沫汁作为回报。切削刀是金属滤网迅速打击制造那些尚未清除的48%. 当冠军赶到现场, 50多年前,齐格弗里德, 作者疗伤草药汁, 被称为悲剧的极高速的榨汁机,导致地摩擦而争吵,有时甚至出现蒸气的果汁. 某些营养素,尤其是所有活酶,被炸毁的热量. 虽然, 我们认为您还是设计出一个齿轮榨汁机, 但你也应该打造绿色果汁。如低速, 齿轮榨汁机，齿轮榨汁机的转速在70 和120 r/min之间。因而, 在齿轮榨汁机中，产物被击碎，没有切割或转动。酵素被保存。您的汁液是冷的, 因为它应该是合理地压榨。您每次举一杯生存汁液，他们是所有榨汁机中最容易清洗的。如同区别的一个视觉表示法我们准备了二杯苹果汁，一个准备在唯一齿轮榨汁机, 另一个在一个离心榨汁机。苹果汁的迅速氧化做这一个好测试为汁液的颜色和因此生命力。其它产物会显示近似结果为离心被生产的汁液,但典型地唯一齿轮准备的汁液不会陈列较少或泡沫。即橙汁整个地是泡沫在离心榨汁机，而零随地泡沫在一个唯一齿轮榨汁机。许多人说或写道, 您需要喝汁液被生产在一个离心榨汁机，直接以后生产它。通常它是解释, 由于果汁微变,你食用它立竿见影. 请停下来想一想. 如果您要对汁液为健康您必须自己生产汁液在低落速度齿轮榨汁机上。这是获取营养丰盈好处的唯一方法，可利用在新鲜水果里和任何菜里，让它们的纤维安全地被分离。在榨汁机上提取的苹果汁没有营养，而唯一齿轮榨汁机榨出的果汁健康, 颜色显示那是充分酵素和营养素。20% 更多汁液出产量？较少泡沫苹果汁提取与离心榨汁机 ? 。氧化了和被转动的清楚的褐色唯一水含量与没有酵素和营养素 ? 。粗劣的汁液出产量 ? 很多泡沫？国内或商业汁液准备将给您生存酵素的好处, 维生素、矿物和其它物质。如此，即然我们完全说服了那他们，只值得喝新鲜的汁液如果准备使用齿轮榨汁机, 我们左边是以一个问题，唯一齿轮或双胞胎齿轮吗? 唯一齿轮榨汁机：一个唯一齿轮榨汁机有唯一转动的螺丝与一条狭窄的螺纹产物，随后而来直到击碎在允许汁液和黏浆状物质抛出在要诀的屏幕里面。这个过程与肉研磨机的蠕虫齿轮是非常相似。首先击碎，然后绞碎产物，果糊透过滤网流出。唯一齿轮榨汁机提议您一流的质量汁液以最后友善用途。您将不会曾经被推迟使用一个唯一齿轮榨汁机, 这永远将保留喜悦。在英国原物Oscar 502 再制造可利用作Oscar 榨汁机, 一个机器你将会看见在果汁糕里象有机行星。有其它唯一齿轮榨汁机可利用的现在囤积, 包括遮阳, 独奏星和居住。有另外更慢是更好的证据(相对这个类别, 即70r/min 不是更好比120r/min) 。事实上, 慢速有巨大好处在数以万计转每分钟, 而是在速度上的小区别在榨汁机之间在这个类别不是起因使您选择最慢。历史上唯一齿轮榨汁机被发明在90 的初期以介绍 Oscar 502, 由韩国公司设计和制造命名。1988 年由二个商务伙伴建立了制造基地。二个人当中一个商人背叛了另一个, 投靠了附近的制造业公司, 开始的新公司称东Oscar，并且在短时间之内有生产了麦特斯榨汁机 - Oscar 设计的拷贝。在韩国外面机器被烙记了萨姆松 , 并且全球性地, 萨姆松代理招来他们机器作为新模型Oscar 。他们减少一定数量做他们的麦特斯榨汁机，沉重的负债和他们的行销被推挤导致失败。在一国家, Oscar 经销商的前雇员窃取了$75,000 和顾客数据库在设置之前作为Samson 经销商。在英国, 那里不是常驻Oscar 销售特许权, Oscar 是忘记了,许多人相信对今天, 他们的萨姆松/麦特斯机器是新 Oscar 。故事几乎完成与东Oscar 下落对破产在2005 年9月26 日。酵素榨汁机，这些未证明一样高效率或可靠的Oscar 品牌。我们严密地推荐在保单期间, 作为Oscar 生存榨汁机提供12年。双重阶段唯一木钻榨汁机最新的创新在唯一齿轮榨汁机里是3 阶段提取木钻运转在一个双重阶段里面榨汁在最初击碎产物, 任一被分布的汁液被指挥通过第一阶段榨汁的屏幕入汁液收集碗。被击碎的产物减去它的汁液然后继续它的方式通过机器, 又更加美好的被钻孔的屏幕任意获得不仅更高的出产量, 但近的黏浆状物质汁液。这个过程声称获得20% 更多汁液比普通的唯一齿轮榨汁机和主要产生喜欢双胞胎齿轮机器。一个测试用红萝卜产生了26% 更多汁液! 与其它唯一木钻榨汁机, 汁液是只生产在第二阶段, 要求更大的孔在榨汁的屏幕。筛子结果是提供其它唯一齿轮榨汁机盖汁液收集碗捉住黏浆状物质。如同汁液被允许退出在第一阶段这类型榨汁机不会遭受一定数量的问题影响实际上所有其它榨汁机的泄漏, 特别是入锁的夹子和马达住房。有只二个双重阶段唯一齿轮榨汁机可利用在市场、独奏星II 和Oscar 上900 VitalMax 。你将会记住, 两个老品牌是在更加早期的模型。我们更喜欢Oscar VitalMax 为编号原因, 包括lighter/sleeker 设计, 并且更加容易使用和清洗。并且, 两个阶段 Oscar榨汁的屏幕是不锈钢作为独奏星II 有塑料第一阶段的地方。最后, Oscar VitalMax 是唯一的榨汁机拿着一张20 年马达保单。即然是一张勇敢的保单贯彻。Oscar 保证我们, 他们的机器被测试了在10,000 个小时用途之外。他们坚持我们每日榨汁液, 和坚持他们使用最美好的马达和组分在世界上。或许一些搬弄是非的标志这质量居住在这机器表现, 和安静, 因为VitalMax 最确定地是我们所使用最安静的机器。因为Oscar 是在事务自1988 年以来它是安全信任他们的保单提供也是。唯一齿轮榨汁机没有榨汁的屏幕总结 Oscar VitalMax 绝对是最可靠的, 最好执行, 最快清洗, 最容易聚集并且使用器具它的类型和它有最少第4部数字加上跳跃者! 有一个唯一产品在这个类别, 是一个电版本的活酵素榨汁机。手工和电版本被设计了为用途以绿色, 特殊完全。由于这些食物非常高象线的纤维内容他们不会创造稀烂汁液, 并且一个榨汁的屏幕因而不是必要的。但是, 缺乏一个榨汁的屏幕在这些机器被结合与榨汁所有产物要求和列为头条新闻，你将会保存不清洗屏幕，小心地进行。您将需要筛, 并且更软的产物疑难。如果您喜欢稀烂汁液, 但当您想要纯净的汁液(没有黏浆状物质), 黏浆状物质迅速收集在筛子堵塞它。如果筛子是联合进入榨汁的鼓那么被分离的黏浆状物质会被放置从他汁液, 但与筛子基于汁液水罐您必须频繁地倒空它和浪费很多汁液这样做。这是非常杂乱, 特别是与软的产物, 包括苹果, 和蕃茄将带领您放弃希望。终于, 二木钻带有这个榨汁机为另外产物- 其它独特的特点。但假定您需要两个, 您可以希望改变零件到汁液下个项目在您的食谱。这重要比较, 因为每一个这些榨汁机有一个38mm 哺养的滑道, 并且因而有同样任务忍受。最

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