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1,故障现象1台SD8B型高驱动推土机在电厂工作1年后发生行走履带不能张紧的故障。该推土机行走履带通过张紧装置的张紧缸调整张紧度,检查发现张紧缸因漏油不能形成封闭油腔,造成张紧缸失去张紧能力,导致推土机工作时履带不能张紧。2,改进前结构改进前张紧装置主要由螺栓1、缸筒2、进排油座3、O形密封圈4、缸筒底座5、油嘴6、钢球7、放油塞8、尼龙套9、活塞杆10、唇形
1, the phenomenon of failure 1 SD8B-type high-powered bulldozer in the power plant after 1 year of walking crawler can not be tensioning failure. The bulldozer walking tension adjustment device through the tension cylinder tension adjustment, inspection found that the tension cylinder due to oil leakage can not form a closed oil chamber, resulting in tensioning cylinder loss of tension, resulting in bulldozers crawler can not work tension. 2, to improve the structure before the improvement Tensioner consists of a bolt 1, the cylinder 2, into the oil seat 3, O-ring 4, the cylinder base 5, the nozzle 6, the ball 7, the drain plug 8, nylon sleeve 9, piston rod 10, lip