滑移装载机简介.ppt

1、滑移转向装载机 Skit Steer Loader,滑移转向装载机（Skit Steer Loader）,吉林（工业）大学 工程机械 张子达课题组,1.国内Skit Steer Loader结构与设计 2.国外Skit Steer Loader设计特点 3.工作装置参数化设计（铰点优化， 结构 FEM，结构设计） 4.工作装置动态应力分析（工作过程中）,一 国内 Skit Steer Loader 结构与设计,XG滑移转向装载机,主要结构特点简要描述： 采用Yanmar/4tnv98柴油机,结构紧凑，性能可靠。也可选用Cummins B3.3 行走采用变量泵定量马达闭式液压驱动系统，链条和轮边

2、减速器为终传动，结构经典可靠，性价比高。可选先导电液比例控制或机械比例控制。 工作装置先导或机械控制，定量齿轮泵、LUDV阀或DSL100+调平阀。 径向提升配调平阀，平移性能好，卸载高达2300mm。 箱型整体车架，强度高，工艺性好 后开机罩，前翻驾驶室，维修性好。 以更小的功率实现更大的提升能力。,Horsepower per SAE J1349 Gross 80 (60 kW) 2300 rpm Net 74 (55.2 kW) 2300 rpm,Drive pump Tandem, axial piston hydrostatic transmission, Pump flow (11

3、3 L/min) Flow Bi-directional Charge pressure 24.8 bar) System relief (300 bar) Drive motors Fixed displacement radial piston Maximum displacement 28.7 in3 (470 cc) Standard equipment Pump Gear pump(79.4 L/min) 3-spool Relief pressure 207 bar Shipping weight (2816 kg),椭圆孔,关于链传动, CASE提到采用大张紧力和高强度型. 蝶行

4、安装方式称在使用过程中无须调节 .链传动Doc1.doc,关于作业装置 SKIT STEER LOADER 计算书 2.doc,关于整机设计 SKIT STEER LOADER 计算书之 1.doc,国外 Skit Steer Loader 设计特点,.high torque Engines for maximum productivity,Easy Tilt ROPS/Cab for fast and easy maintenance,.Comfortable, low-effort servo-hydrostatic controls for operator comfort,Spring

5、 applied hydraulic release parking brake for precise and easy operation,.Single point daily service for low maintenance cost,（一） Heavy-duty design（整机） for long life and low cost of operation,lift arms were designed to keep every pin at each pivot point in the same plane. Additionally, the pins are s

6、upported on both sides(简支梁) vs. just one side (cantilever design) that youll see in other machines. The result is that the loader lift arms have less lateral deflection (side-to-side lift arm movement) and reduced load on the pins themselves.,lift arm geometry : Geometry of a durable loader lift arm

7、,（二）,（三）POWERTRAIN 1。串泵与发动机 Tandem servo-controlled hydrostatic drive pumps are coupled directly to the engine flywheel, delivering 100 percent of available engine power to pumps and components.。 2。泵 Direct coupled hydraulic pumps prevent power loss. 3。高速马达加链传动 Hydrostatic motors efficiently transfe

8、r power through extra heavy-duty drive chains. 4。桥 Heavy-duty, single-piece,forged, inductionhardened carbon steel axles ensure reliability. 5。桥密封 Lubed-for-life axle housings with protective seal guards offer long life and dependable performance. 6。马达Heavy-duty radial piston drive motors offer grea

9、ter tractive effort, improved reliability and efficiency.,2。以Case 为例 （POWERTRAIN续） The 430, equipped with the twospeed option, provide faster travel speeds from a push-button two-speed drive.These two machines accelerate from 7.3 mph (11.7 kph) in low range to 11.9 mph (19 kph) in high range. Push-b

10、utton brake activation(激活)：All Case 400 skid steers have push button brake activation to allow operation of the loader arms without having to steady the machine, an excellentfeature when working on slopes. The spring-applied hydraulic release (SAHR)：disc parking brake can be applied three ways: pres

11、s the brake button on the right-hand instrument panel, raise the seat bar, or stop the engine. Low-effort controls： The low-effort excavator-style controls give you precise control, improving your productivity. And the controls swing away for easy entry and exit. For the ultimate in versatility, sta

12、ndard auxiliary hydraulics allow you to operate a wide range of attachments. A locking lever for the foot pedal provides constant hydraulic flow for backhoe or trencher work. Pre-stressed drivechains for reliability Heavy-duty, pre-stressed drive chains. ASA #80. 或ASA #100.,小结 Skit Steer Loader (7 点

13、) 1. Feature: Compact（紧凑，简洁）, Quick（动作快）, agile（灵活性）, 2. Skit Steer 3.All Wheel Steer 4.设计与计算：是装载机；及 1，2，3，,All Wheel Steer,5. 结构型式，特点及成本与需求 options and attachments in the industry means the right sized loader with the right features at the right price to meet your specific needs. 1.)长短轴距A smooth-ri

14、ding long wheelbase model。 A compact, standard wheelbase machine for maximum maneuverability 2.）提升轨迹a radius lift path for great all around performance. a long-reaching vertical lift path for optimal loading efficiency. 3.） Attachments 4.）Skit Steer or All Wheel Steer 5.)配置 及 成本,小结 续,6. standard equ

15、ipment as an engine/hydraulic systems shutdown, deluxe（豪华） cab, dual function (maximum flow or variable flow) front auxiliary hydraulics,7.Durability 耐久： Drive chains never need adjustment and axle bearings never need greasing. （Axle tubes are welded to the frame ） 8。Engine and hydraulic system shut

16、down automatically protects the machine （在遇危险时）,1。Skid-Steer Loader(SSL) Choice of lift arm designs (radius & vertical lift path) Choice of sizes Choice of Wheelbase (Std, Long) Excellent reach & lift height for truck loading (vertical path). Long wheelbase for a smoother ride. Compact frame for tig

17、ht quarters work.,（四 ） 三种型式 loader,2。Compact Track Loader (CTL)屡带式 Low ground pressure. Smoother ride on rough ground. Increased push force. Elevated sprocket design minimizes wear. Increased lift capacity to handle heavy loads. Unmatched rough terrain performance. Extend your work season with a com

18、pact track loader,3。All-Wheel Steer Loader(AWS) Dual steering modes (all- wheel steer & skid steer). Reduced tire wear. Reduced surface disturbance. High maneuverability in either steering mode. Unsurpassed operator comfort. Low-effort joystick control,（五）controls Skid Steer and Compact Track Loader

19、 Controls,Standard Controls,The Original.Dual steering levers control the drive functions, While dual foot pedals control the loader lift and tilt. nearly 50 years ago, and its still one of the most popular styles today.,Advanced Control System (ACS),Two control styles in one machine. With this cont

20、rol option, the operator can choose between controls(单手柄) and H-pattern hand controls (双手柄) - at the flip of a switch. H-Pattern ModeIn the H-Pattern mode the left joystick controls left side drive and lift functions and the right joystick controls right side drive and tilt functions as well as auxi

21、liary hydraulics (Case420即此方式),（六） Dual Path Cooling SmartFAN Machine Shutdown Protection Geometry of a durable loader lift arm (to keep every pin at each pivot point in the same plane.) Speed Management mode (to maintain maximum driveline torque to power the wheels and full hydraulic power to opera

22、te your attachment ),BOBCAT oper.training.11trimmed.mov,三 vertical heavy-lift loader linkage,LOADER ARM DESIGN-VERTICAL with a Power Reach vertical heavy-lift loader linkage: 1。高提升 offer the industrys highest lift capacity. 2。托盘（砖或方捆） Easily lift heavy pallets of brick or large bales, then precisely

23、 load trailers or trucks. 3。卸距 Maximum reach at lower heights 4。卸高The Power Reach design gives you maximum reach at any height, making it easier to place loads on trailers. 5。卸距 Plus, the design maintains maximum reach all the way to full height, helping you load into the middle of high-sided dump t

24、rucks. 6。带铣刨头，改善性能。 Hydraulic self-leveling option improves material retention cold planers.,四 Parallel heavy-duty 8- linkage,b) 平行8杆机构 图2-4：平移性曲线 横坐标：动臂下铰点的举升高度；纵坐标：铲斗转角,b）平行8杆机构 图2-6：动臂提升能力曲线 横坐标：动臂下铰点的举升高度；纵坐标：K,b）平行8杆机构 图2-7：铲斗转角变化曲线 横坐标：仿真时间；纵坐标：铲斗转角,b）平行8杆机构 图2-8：传动角变化曲线 横坐标：仿真时间；纵坐标：传动角,b）平行8

25、杆机构 图2-9：转斗缸长度变化曲线 横坐标：仿真时间；纵坐标：转斗缸长度,b）平行8杆机构 图2-11：地面位置，K0的变化 横坐标：铲斗转角纵坐标：K0,机构AVI： P429.avi SCRIPT_5.avi 2.avi,五 All-Wheel Steer Loader(AWS),All Wheel Steer Loaders Unique All Wheel Steer Loaders Unique.doc 两种转向模态.ppt,六 Compact Track Loader (CTL)屡带式,七 Skid Steer Loaders 属具及参数化设计 the most versatil

26、e piece （最万能的综合） of construction and maintenance equipment.,Skid Steer Loaders 属具及参数化设计 Angle Brooms Augers Autorakes Bale Spikes 4-in-1 Buckets Cold Planers Dozer Blades Hopper Brooms Hydraulic Hammers Jib Booms Landscape Rakes Manure Forks Mini-hoes Pallet Forks Pick-up Brooms Rock Wheels Rotary Tiller Silt Fence Installers Snow Blowers Snow Push Steel Tracks Stump Grinders Vibratory Rollers More,3-Point Hitch Adapter Attachment Coupler Buckets Power Box Rakes Scrap Grapple Buckets Snow Blades Trenchers,反铲挖掘装置 LOADER ARM DESIGN-VERTICAL LIFT.with diggi