一种拖拉机离合器散热装置设计

Design of a Heat Dissipating Device for Tractor Clutch

【目的】在大马力拖拉机使用过程中,由于离合器摩擦片受热变形易导致离合器分离不彻底引起摘挂挡困难等故障,故如何解决大马力拖拉机离合器散热问题是当下各大拖拉机主机厂亟待解决的问题。【方法】本研究结合拖拉机干式双作用离合器的结构特点和实际使用情况对大马力拖拉机离合器热变形的成因进行了具体分析,通过对不同散热方案的讨论,最终提出了一种适用的拖拉机离合器散热装置,该装置通过离合器壳体的转动加快离合器所在空间的空气流动,同时通过管路连接将热空气引至拖拉机空气滤清器管路中,起到了降低离合器温度的作用。【结果】该拖拉机离合器散热装置结构简单、可靠性高、对拖拉机的改动小且便于执行,能够有效地对拖拉机离合器进行散热。【结论】本研究设计的拖拉机离合器散热装置对解决由于离合器热变形等问题导致的部分拖拉机故障、提高驾驶员的驾驶感受等具有巨大的改善作用,有利于延长离合器的使用寿命,降低离合器的故障率。

[Objective]During the use of high-power tractors,there are many failures such as incomplete clutch separation caused by thermal deformation of the clutch friction plate,which can cause difficulty in gear shifting.Therefore,how to solve the heat dissipation problem of the clutch of high-power tractors is an urgent problem for major tractor manufacturers to resolve.[Method]The research group conducted a specific analysis of the causes of thermal deformation of the clutch of high-power tractors based on the structural characteristics and actual use of the tractor dry double acting clutch.Through discussion of different heat dissipation schemes,a suitable heat dissipation device for the tractor clutch was finally proposed,which accelerates the air flow in the space where the clutch is located through the rotation of the clutch housing.At the same time,hot air is introduced into the tractor air filter pipe through a pipe connection,which plays a role in reducing the clutch temperature.[Result]The tractor clutch heat dissipation device has a simple structure,high reliability,small modifications to the tractor,and is easy to implement.It can effectively dissipate heat from the tractor clutch.[Conclusion]The tractor clutch heat dissipation device designed in this study has a significant improvement effect on solving some tractor failures caused by thermal deformation of the clutch and improving the driver’s driving experience,which is conducive to extending the service life of the clutch and reducing the failure rate of the clutch.