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摘要
Zl50裝載機是我國輪式裝載機系列中的中型產品，該機是一種較大型的以裝卸散狀物料為主的工程機械，廣泛應用于礦山,基建,道路修筑,港口,貨場,煤場等地進行裝載,推土,鏟挖,起重,牽引等作業(yè)。
Zl50裝載機屬于ZL系列，采用輪式行走系，液力機械傳動系，交接時車架，工作裝置采用液壓操縱，所以該機具有機動性好,轉向靈活,生產率高,操縱輕便等優(yōu)點，另外，該機后橋布置為擺動橋，增加了整機的穩(wěn)定性，所以該機安全性好。
Zl50裝載機采用液力變矩器,動力換擋變速箱,四輪驅動,液壓轉向,嵌盤式制動器,鉸接式車架的先進機構，具有牽引力大,操作方便,轉彎半徑小,作業(yè)效率高等優(yōu)點。
設計步驟簡單如下：1.對裝載機的總體進行分析，確定總體參數；2.牽引計算，確定出各檔及各檔傳動比；3.對裝載機進行整體布置，并繪出總體布置圖；4.工作裝置的設計為重點，采用相似設計，以ZL20輪式裝載機的鏟斗為參考斗進行新的鏟斗參數設計及選型；采用圖解設計法對動臂,斗四連桿機構,斗油缸四連桿機構尺寸進行了優(yōu)化設計，并著重對鏟斗進行設計，其中包括鏟斗外形尺寸,確定在裝載機上的位置,強度驗算。
關鍵詞:輪式裝載機,工作裝置設計,鏟斗設計
Abstract
The loader ZL50 iswheel type and it is much bigger among the series made in our country.It is suitable for loading discharging materials and it applies for mine,capital conduction,road builing ,port,field,coalfield and carries loading ,pushing dust ,diging rising weight.
The loader ZL50 is ZL series.It adopts whell type system, liquid engine driving system,ream meet vehcle type, working set of hydraulic pressure contolling.So it has good flexibility, turn agility high productivity,controlling handiness ets. Its back bridge ,so increases the stability of whole machine,and it has a good security.
Being quipped with advanced devices such as hydraulic torque conventer power shift gearbox four wheel driving,hydraulic chuck disk break and artallated frame .So the loader model ZL50 is featured with high pulling capacity,small turning radius.all of which make it possible for easy operation.thus resulting in the high efficiency of our product .
In my design,I adopt counter shaft power shift transmission’s construction is simple and maincenance is easy .the transmission has two forward and one reverse gear ,it can provide three speeds.
KEY WORDS: the round type load machine, design of the work part, shovel design.