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一台泰山-300型拖拉机“三夏”作业中,出现转向异常沉重的现象,经询问驾驶员,该车未发生任何事故,属使用过程中逐渐形成的故障。维修人员检查了轮胎气压、前轮前束,对转向器及各传动部位进行了润滑,调整了前轮轴承间隙、更换了部分磨损的球头,调整了方向盘自由行程、转向器轴承间隙和传动副啮合间隙,检查了各传动杆件,均未发现异常,故障虽有所缓解,但转向依然沉重。维修人员经分析确定故障还在转向器上。泰山-300型拖拉机转向器采用球面蜗杆滚轮式,由于摩擦面采用滚动摩
A Taishan -300 tractor “three summer ” homework, there is an exceptionally heavy steering phenomenon, after asking the driver, the car did not happen any accident, which is the gradual formation of the fault during use. Maintenance personnel checked the tire pressure, the front wheel beam, the steering gear and the transmission part of the lubrication, adjusting the front bearing clearance, replace the worn ball, adjust the steering wheel free travel, steering gear bearing clearance and transmission Vice mesh gap, check the transmission rod, were found no abnormalities, although the fault has eased, but the steering is still heavy. Maintenance personnel identified by the analysis of the fault is still on the steering gear. Taishan -300 tractor steering wheel with spherical worm type, the friction surface with rolling friction