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WY100液压履带挖掘机总体及工作装置设计及运动仿真【8张CAD图纸和说明书】

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wy100 液压 履带 挖掘机 总体 整体 工作 装置 设计 运动 仿真 cad 图纸 以及 说明书 仿单
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摘要

液压挖掘机是工程机械的重要产品之一，具有较高的技术含量。工作机构是液压挖掘机的主要装备，机构各铰点以及其具体结构的设计将是决定工作机构性能水平的重要因素，决定了液压挖掘机的工作性能，影响其最终使用性能的好坏，所以对液压挖掘机工作机构的研究是十分有必要的。液压挖掘机的主要特点为：能无级调速且调速范围大，能得到较低的稳定转速，快速作用时，液压元件产生的运动惯性小，加速性能好，并可作高速反转，传动平稳，结构简单，可吸收冲击和振动，操纵省力，易实现自动化控制，易于实现标准化、系列化、通用化。

本次设计的题目是WY100液压履带挖掘机总体及工作装置设计及运动仿真。这种类型的挖掘机与其它类型的挖掘机相比，因有良好的性能而应用最广，对松软地面或沼泽地带还可采用加宽、加长以及浮式履带来降低接地比压。

本次设计完成的主要任务有：挖掘机的类型及发展概况、液压挖掘机的总体设计液压挖掘机工作阻力的计算、液压挖掘机工作装置的设计、液压挖掘机工作装置的受力分析和强度校核、挖掘机工作装置液压系统的设计、挖掘机工作装置的运动仿真

本次设计的主要参数是斗容量1.0m3,它属于中小型液压挖掘机，主要设计挖掘机的工作装置及进行运动仿真。挖掘机的工作装置是直接完成挖掘任务的装置，本设计对工作装置的各个组成部分进行了较为详细的设计，这其中包括了动臂、斗杆和铲斗及其驱动装置的设计。

在设计中，采用了履带式行走装置，来满足要求。上部转台是全回转式，因此它可在一个更大的范围内工作。又因采用液压传动控制而使整机性能得以改善。与机械式挖掘机相比，其挖掘力提高到2～3倍，整机质量为25吨，最大卸载高度约为4.53m，最大挖掘深度5.99m，最大挖掘半径约为9.795m，从中可以看出整机作业能力有了很大的改进，不仅挖掘力大，且机器重量轻，传动平稳，作业效率高，结构紧凑。 

关键词：液压挖掘机 工作装置 液压系统 运动仿真








ABSTRACT

Construction machinery hydraulic excavator is one of the most important products which has high technical content. Working mechanism is the main equipment of hydraulic excavator, each joint point and the design of the concrete structure are important factors to decide the working mechanism of the performance level, determining the working performance of hydraulic excavator, which influence the use performance is good or bad, so the research of hydraulic excavator is very necessary. The main characteristics of hydraulic excavator is as follow: It has a stepless speed regulation and wide speed range, it can obtain stable low speed, when action quickly, the hydraulic parts produce a small inertia and good acceleration performance, and it can be used for high speed reversal, produce smooth transmission, simple structure, can absorb the impact and vibration, labor-saving operation, it is easy to control automatically and realize the standardization, seriation and generalization.

The topic of the design is the design of WY100 hydraulic crawler excavator overall and the working device and motion simulation for the working device. Compared with the other types of excavator this type of excavator have good performance so used widely, it can reduce ground pressure by widening, lengthening and floating crawler for soft ground or marshes. The main tasks of the design are: Types and the development of the excavator, the overall design of hydraulic excavator, the working resistance calculation of the hydraulic excavator, the design of the working device ,stress analysis and strength check calculation of the working device, the hydraulic system design of the excavator working device , the motion simulation of excavator working device

The main parameter of the design is bucket capacity 1.0m3, it belongs to the small and medium-sized hydraulic excavator, the main tasks are the design and motion simulation of working device of excavator. The working device is the equipment that completes the task of mining directly, all the design of the work device components are designed in detail including the design of the boom, stick and bucket and a driving device.

This design used the crawler walking device to meet the requirements of the excavator. The upper part of the excavator is a full rotation swivel table so it can work in a greater scope. Because of the use of hydraulic drive control and make the machine performance can be improved. Compared with the mechanical excavators, the mining capacity increased to 2 ~ 3 times, the quality of the machine is 25 tons, the maximum discharge height is about 4.53M, the maximum digging depth is 5.99M, maximum digging radius of about 9.795m, can be seen from the operation ability has been greatly improved, not only the mining capacity but the light weight, smooth transmission, high efficiency and compact structure.

Keywords: hydraulic excavator   working device   hydraulic system   motion simulation


目录

第1章 绪论··················································································1

 1.1挖掘机作用及其发展概况································································1

 1.2挖掘机的分类·············································································2

1.3单斗液压挖掘机的特点、类型····························································3

1.4设计题目简介·············································································4

第2章 总体设计············································································8

2.1 总体设计内容及原则····································································8

2.2 选择确定总体参数·······································································8

第3章 挖掘机工作阻力·································································15

3.1 工作液压缸的理论挖掘力·····························································15

3.2 整机挖掘力·············································································16

3.3整机实际挖掘力·········································································17

第4章 工作装置设计····································································18

4.1 设计要求················································································18

4.2 反铲工作装置结构方案的确定························································18

4.3铲斗设计·················································································24

4.4动臂机构设计············································································27

4.5斗杆机构的设计·········································································31

4.6铲斗连杆机构的设计····································································32

第5章 工作装置受力分析和强度验算··············································35

5.1铲斗及铲斗连杆机构分析······························································35

5.2斗杆及斗杆机构分析····································································36

5.3动臂及动臂机构分析····································································43

第6章 工作装置液压系统设计························································49

6.1挖掘机工况特点和对液压系统的要求·················································49

6.2液压系统主要类型和特点······························································51

6.3液压挖掘机的基本回路和辅助回路····················································52

6.4液压系统图··············································································54

第7章 运动仿真···········································································56

7.1 引言·····················································································56

7.2 Solidworks模拟仿真的基本概述······················································56

7.3 Solidworks动画模拟仿真的概述······················································57

7.4 液压挖掘机工作装置的三维实体建模················································57

7.5 液压挖掘机工作装置的三维实体装配················································62

第8章 毕业设计小结····································································64

第9章 致谢·················································································66

参考文献·····················································································67


第1章绪论

1.1 挖掘机的作用及其发展概况

液压挖掘机是在机械传动挖掘机的基础上发展起来的。它的工作过程是以铲斗的切削刃切削土壤，铲斗装满后提升、回转至卸土位置，卸空后的铲斗再回到挖掘位置并开始下一次的作业。因此，液压挖掘机是一种周期作业的土方机械。

液压挖掘机与机械传动挖掘机一样，在工业与民用建筑、交通运输、水利施工、露天采矿及现代化军事工程中都有着广泛的应用，是各种土石方施工中不可缺少的一种重要机械设备。

在建筑工程中，可用来挖掘土坑、排水沟，拆除废旧建筑物，平整场地等。更换工作装置后，可进行装卸、安装、打桩和拔除树根等作业。

在水利施工中，可用来开挖水库、运河、水电站堤坝的基坑、排水或灌溉的沟渠，疏浚和挖深原有河道等。

在铁路、公路建设中，用来挖掘土方、建筑路基、平整地面和开挖路旁排水沟等。

在石油、电力、通信业的基础建设及市政建设中，用来挖掘电缆沟和管道等。

在露天采矿场上，可用来剥离矿石或煤，也可用来进行堆弃、装载和钻孔等作业。

在军事工程中，或用来筑路、挖壕沟和掩体、建造各种军事建筑物。

所以，液压挖掘机作为工程机械的一个重要品种，对于减轻工人繁重的体力劳动，提高施工机械化水平，加快施工进度，促进各项建设事业的发展，都 起着很大的作用。据建筑施工部门统计，一台斗容量1.0m3的液压挖掘机挖掘Ⅰ～Ⅳ级土壤时，每班生产率大约相当于300～400个工人一天的工作量。因此，大力发展液压挖掘机，对于提高劳动生产率和加速国民经济的发展具有重要意义。

挖掘机械的最早雏形，主要用于河道。港口的疏浚工作，第一台有确切记载的挖掘机械是1796年英国人发明的蒸汽“挖泥铲”。而能够模拟人的掘土工作，在陆地上使用的蒸汽机驱动的“动力铲”于1835年在美国诞生，主要用于修筑铁路的繁重工作，被认为是现代挖掘机的先驱，距今已有170多年历史。1950年，德国研制出世界上第一台全液压挖掘机。由于科学技术的飞速发展，各种新技术、新材料不断在挖掘机上得到应用，尤其是电子技术和信息技术的应用使得液压挖掘机在作业效率、可靠性、安全性和操作舒适性以节能、环保等方面有了长足的进步。目前液压挖掘机已经在全世界范围内得到广泛应用，成为土石方施工不可缺少的重要机械设备。


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In 20 0 4 , t he p r odu e tio nv olume ofe xcav a t o rinC h in a reaehed 2 7 5 0 0s e t s ,a e e o u n tin gfor2 7.8 %of t he pro du e tio n thr o u gho u tt h eworl d.A t Pr e s e n t , theis s u e s r ela tin g t oe n vir o nme n t al P ro tect io n ande n e r g y e o n s e r v a tio nha v e a r o u s eda g r e a td ea lof pub l ie e o n e e r n.As ar e s ul t,h i g he r r e q uir eme n t s a r e p u tfo rwa rdo nr el iab i l i t y, e e o n om ie ef ieie ncy,fu n e tio n a nda u t ornat i o n o f h ydra ul ie excav ator.T heh 州raulieexca vator Presently avai lable on th e 口进rk et ,howe v e r ,一ha sthefo l lo 初ng di sa dvanta ges:(1 ) 助w degree of autotna tion: W hen usinghydraulie exca va torto leveluP afield ordig a diteh,sin e e thedriv e rhas t o e o n t r ol t heb co m, 日幻的 an db u ek et sim u lta n eo u sly , t hein t e n si t yof h islabo ur 15r ela tiv el y hi g h, and he 1 5 a l s o r e q u i r e d t o b e w e l ls k i l l e d .( 2 ) W h e n t h e h y d r a u l i e e x ca v a t o r 15 r u n ni 雌,i f t heP o w e r a b so r b e d b y t h e h y d r a u l i e s y s t e m e x e e e d s th er a t ed powerof t he e ngin e ,the eng in e 侧11sta llandeven stoP. In sueh ca se, the o P e r a tiona lP e 汀ortr进n ee o f e x ca v ato r ca n,t b e b r o u g h t i n t o f u l lp l a y, a nd t hefu el con s um p t io n 诫11also inerea se.(3 ) O w ing to its eom plica ted strueture and theext rem e oPera ting environm ent,h y dr a ul ie e xcav a t o renjo y s a r ela tiv el y hi g h fa ul tr a t e.W he n e v e r afaul to e e u r s ,mai n t e na n e e p e r s o n n e l h a v e t omak e g r ea te f f o r t s t o i d e n t i f y t h ecau s e o f fa u l t ,w h ieh m ean st h e e xcav a t o r wi l l be o u t ofs e r vie eforlo n g ti me a ndt h u s t h e u s e r 诚11ineur huge eeonom ie losses.(4) Sinee the exca va tor ca n, t bebr o u gh tu nde rr emot emoni to rin g and man a g eme n t , the r a tio n ald is p a t eh in gfor e xcav atorcan , tbe rea l i ze da nd t hen e eds ofmode r n e o n s t r u e t i o ncan , tbe s a tisf ied.T ha nks t o the e x t e n siv e a p pl i ca tio n ofeomp u t e rt e e h n o l o g yan d in t el l i ge n t e o n t r ol te eh no lo g y ,con s t r u e tiona lrnaeh in e r yha sde v elo ped f ro mh y dr a ul i ca l l y- control led t y Pe t od i gi ta l i ze d t yPew h i e h 1 5 o f s i m P l i fi ed s t r u e t u r e,eas y t ocon t r ola ndmor ein t el l i ge n tiz ed.For exa m p le , t h e PC3o oh y dr a u l i e excav a t o r r 以n u fa etu red b y Ja P an- b a sedK O M A T S U o b 面ns 3一 d ime nsio n t raje e t o r y e o n t r olab i li t y w it h t hehel pof t he til t eda n gle s e n s o r smo u n t eda ti tsb o m, arma nd bu eke t , o t h e rh y dr a u l ie exca vat o r sman u fa e t u r e d b y V O L V O ,C A T,K O 侧护LT S U and H IT A C H obtain the rem otemo nitori n g ability thanks to the G P Smou nted.T h e intelligentize d hydraulie exca vator 15 highlyintelligentize d , a u t o r n a t e da nd informat i o n i ze d.I ts一 521 一医比In ly e m bo d ied in th e fo llo 初眼aspeets:Itca n ca r y out automa tion;itrea lize s thetrajeetory eontrolfo rwor拓叮 叫uipm ent, it rea l iz e st h e s e lf- a da P t i n g po w e rmat e hi n g co n t r o l b e t w e ne ngin e a n d h y d ra u l ie p u m p ; it ca n ca r y o u t r emot ed a ta trans 而ssion, r e m o t emon i t o ri n g a n d r emot eman age me n t , it ca n ca r r y o u t fa ul t di a g n o s i s a n dm a in t e na n e e.2 Co m p 哈iti on of ln tel li 罗n吐双月E xca va for s te m 珑.2 反hema tie diagr 田旧 o f co n tro lle rA s ind ica te d in Fi g.l , t hei ntel l i ge ntized h 州raulieexca va torsys tem 15eom POsed ofaco ntro ller, a G P S( G l o b a l PO s i t i o n S y s t e m ),G P R S (General Pa eke tRad ioSer vie e), a r e r n o t e s e rver , a r n o ni to r , a因rta ble faultdi 昭no sis system and etC.咙.1 Co m卯sition ofh州ra ul ic va to rinte】1运entizedrsystem2.1 ( 劝nt洲目】erAs in dica ted in F ig.2 , thecon tro l le r15co m 卯sed ofaignal a叫uisition mo dule, 卯w er dri ve mo dule,moni torm odule a nd G P s/ G P R S module , and ta ke sadi gi ta lsi gn al proce s s o r( D 6 P )a si ts e o r e e o n tro lu 垃t 2. Its sig n a l a eq u isitio n medu le m ea sur es th etilted a呢le, p r e s s u r e , s P e e d a n d temp e ra t u rethro 呀h periphera l senso rs, a n d t h es e s i g n a l sares e n t t o thecontrol l eraft er goi ng t h rou ghana log-di gi t con versio 几 In thi swa y,therea卜tim ein fo n刀a tio n a bo u t th e e x Cav ato r 15 o b tai n ed.T h e mo n ito r 15 u sed to d isp lay th e m ain o 沐rati呢Pa rame te rs sueh as engi ne speed , t hee 眼ine 011tem Perature, e n g l n e 0 1 1 P r e s u r e a n dcol i ngwat e rt e m p er a t u r e,to di sP la yfaul t co de and gi ve analarmo n theba sis of t hao Perat ing cond i tio n s of theexcav a t o r , a nd todis pla y rea l-t i m e i n f ormat i o nabou tposi tio n a nd ge s t u r e of bu eke tin theformofd i gi to rfi gu r eSin e e thecon tro l le rcornuni cat e swi tho th er Pa rtsinC A N ( 伪ntrolArea Netwo rk) mo de , alo t of初re has be n dispensed , a ndt h u s t h e 5 1 9 汕1一control一 522 一reliability an d anti-interferenee ca Paeity have beenim Pro ved . The CAN bus w hieh 15 adaPta ble to theoPera ti飞 environment of hyd raulic exca va to rensures thatthe co ntro lca n be carrled outin a rea ltime , fie 范ble and exPand able w ay andma kes it ea syfo r the co ntroller to fo rm a m ult卜co ntroller net、v o r kto g e t h e r 诚th other periPhera l devi ees. Sinee theC A N bus ado pts the m essa 犷based eneodingme thod and the priorit犷based no n destruct ive busar bitra tion teeh no logy , i tenjo y sh i g ha n ti-in t e 班erenee ca pad ty ,h i ghr el iab i l i t ya ndr ela tiv el yh i g hrea l-t imeca pa ei t y.Thecomu ni ca t io np r o tocl o bs e r v ed b y C A N bu sme e t sS A E J 1 9 3 9,the ph ysi ca l la y e r of C A N bu smee t sS A E J 1 9 3 9 /1 5, thecornmuni ca t io n r a t e of C A N bu s152 5 0 K b i t /s ,an dt h e t ermln al resistanceof C A N bu s151 2 o n 3 .For th e p u rpo se o f m eeting th e req u iremn t o neo m forta b le o p era tio n , thein t el l i ge n th y dr a ul ieexcava tor15 四uipped 初th a co ntro lhandle designedin aeco rda nee 侧th the Princi Ple of huma nengine ring A s indica ted in Fi g.3,ano p ti ca l t 即eno n- co ntaet switeh 15 m ount ed on the co ntro lha nd le. Thro ugh tha CAN bus, t h e s i g na l r e l a t i n gt o t h e di s P l ace me n t of t he e o n t r ol ha nd le a nd t hesi gnalof t he o p ti ca ls 诚teh ar e sent to theco ntro ller. T he buttons on the eontro l handle areused to seleet oPerati吧 m od e. If the ma nualoPera ting mo de 15 selec ted , the e o n t r ol hand le15F i g.3Con tro l handle d es i, 曰 inacord an ee 嫩thhun坦n e侧,neri 呢 Princ iple,t h eo P era to rin P u t s o P e r a tin g p a r ame t e r s thr o u gh t hemoni tor , a nd t he n the e xca va to r wi l lo P e r a t eina ecorda n e ew i t h t he t raj ect o r y w h i e h 1 5 d e t ermin edb y t he e o n tro l le r o n theba sis of t he o p e r a tin gP a r a m e t e r s, 5 0 tha t the a u t oma tie e o n t r olo n theexca v a t o r15 rea l iz ed.s t r u e t u r e , wh iehe o n n e e t ed to thesi mul ta neou sl y.】11e s n s s e v e r a lmod e m s rna y b es e r v e r fo r d a ts tr a n s m is s io n、泛、占2.2Remot七info 川阳tl叨 t. 此sr 川sl onG P R S is a 初reless paeket s侧tehing teehnologyw hieh ofters end- to- end w ireless IP eonneetionw ithin 诚de area and w hereby data 15 transm itted inPaeket. The strueture of remo te info rm ationtransm ission mo dule of intelligentized hydra ulieexeavator15asindieated in Fi g.4. GPRS IP M odem15eonneeted to the co 爪roller w hieh 15 rnounted onthe excavator thro ugh R S232 po rt, a nde x eha n g e sdats w i t h t he r e r n o t e s e r v e r via theIn t e r n e t.T hee o n tro l le r 侧11 eonvert the da ta aequired into thefo rma t w hieh ca n be trans而tted by the G PRS IPM odem , a n d t h e n t h e d a t a w i l l b e s e n t t o t h er emot e s e r v e r b y t h e G P R SIP Modemvia theIn t e r n e t.Remo t e s e r v e rwi l lals o s e nde ommand tot h e e o n t r o l l e r.In th isway, the r emot emoni to rin go nh y d raul ie e xcav ator15 rea l i ze d.Bet w e e n t h eG P R S I P Modema nd t heremot e s e r v e r 1 5 aC/S下岛m o妞 C on U n阴i伪石OnT C P几Pe竹OtO 阅! 犷RS232PortFig.4Struetureofre比IO te in fo n l犯tio n t犷已n 5 1而”幻n2 . 3 A P P lica U on of G 玲GPS 15 a globalwireless na vigation and Po sitioni 雌system co m po sed of24 artifieialsa tellites an d ear thstations. W ith the help of GPS and G PRS, t h er e m o t e m o n i t o r ing, s e rvie e a ndrnan a g eme n t o nin t el l i ge n ti 名ede x ca v a to r a r e rea liz e d .Bes id e s t h e in forma t io n a b o u t P o s itio n o f excav a to r ,t h e e o n tro l le r wh ieh 15 e q ui p ped w i t haG P S/ G P R Smodule als o s e nds the o p e r a tin g P a r ame t e r s of t heexcav a t o r s u eha s t em pe r a t u r e , p r e s s u r e a ndw o r k i呀 hours to the rem ote server.肠ble l 户乃司喊.寸 Pl ann ing and 州ual lrl, ”ur 曰 喇ue for excava奴片 in 510诊州浏耐ng o讲ra tlonel () 氏(.) 么(.)Exp 戈t己 V alue M ea sur 已 V alue Ex户沈t曰 V alue M ea sur曰 V alue E x户, t 已 V al ue M ea sur曰 V al ueG ro uP I 45.4844 45.32 一30.8705 一30.65 一 59.6139 一59.87G ro uP Z 47.6061 47.53 一37.9184 一 38.20 一 54.6877 一54.32G ro uP 3 49.3361 49.62 一43.4816 一4 3.43 一 50.4445 一50.59G rouP 4 50.8090 5 1.20 一49.1842 一49.32 一46.6247 一46.31G rouP S 52.0931 5 1.76 一53.9979 一54.03 一43.0952 一 43.27G ro uP 6 53.2289 53.52 一58.4522 一58.53 一 39.7766 一39.82G ro uP 7 54.2421 54.30 一62.6250 一62.32 一 36 6171 一36.33G ro uP S 55.1501 54.90 一66.5701 一66.87 一 33.5799 一33.81G ro uP g 55.9694 56.12 一70.3722 一70.56 一30.6382 一30.24G rouP 10 56.6968 56.32 一73.9259 一74.22 一 27.7708 一28.02T h e po sitio nco rdin a tes o f th e exc a v ato r arerefleeted o n th e m ap b y th e eleetro n iema p p in gsy ste m , 5 0 a s tha t the s a t el l i t e- ba s ed po s i tio nin gthe stoppage ofexca vato r ca used by engine stalling15 efect ively avo ided , t h e f u e l e o n s u m p t i o n 15o b v io u s l y r e d u e e d , t h e ca P a e i t y t o di a gnos e a n de learfa u l t 15 g r ea t l y im p r o v e d 5 0 t h a t t h e o u t一 of-s e rvie edu r a tio ncau sed b ymai n t e n a n e e a n d r e P a i r 1 5shor t e ned; the r emote mo nito rin g a ndman a g eme n to n e x c avat o r a r e rea l iz ed.一 525 一色阅be aPPlied to eonstruetiona l lr比ch in ery mo re a n dmore 初dely, a nd in t el l i ge n tized con s tr u e tiona lmaehin e r ywi l lsur el y becomethede v elo pi呀direction.Thank s fo r help and assista nee fro mRe
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