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1988年,七星农场购进12套东方红-75型拖拉机液压悬挂装置,分布在12个生产队使用。春耕生产中,这12套液压悬挂装置都有不同程度的损坏。据统计,每套装置的工作量都不足600亩。本文介绍一下发生故障的部位、原因和解决办法。 (1)悬挂装置纵拉杆上的铰接钢球脱出原因是球座的材质和强度不够,加工质量亦不高,致使球和球座的配合间隙过大,承受不了犁体的纵横推力,撞坏挡环,造成钢球脱出。
In 1988, Seven Star Farm purchased 12 sets of Dongfanghong-75 tractor hydraulic suspension units distributed in 12 production teams. Spring plowing production, these 12 sets of hydraulic suspension devices have varying degrees of damage. According to statistics, the workload of each device is less than 600 acres. This article describes the location of the failure, the reasons and solutions. (1) Suspension The reason why the hinged ball on the pull rod is out is that the material and intensity of the ball seat are not enough and the machining quality is not high, which causes the ball and ball seat to work with too much clearance, which can not withstand the vertical and horizontal thrust of the plow body. Block ring, resulting in steel ball prolapse.