A shaft sealing device of a reducer, which comprises a barrel (3), a flange of the right end of the cylinder and a box of the reducer (2) is sealed and fixed, and the output shaft (1) of the reducer is extended from the barrel, and a flexible sealing sleeve (4) is set between the cylinder and the output shaft, and a pressure sleeve (6) is provided on the left side of the seal sleeve, and pressure is set (6) on the left side of the seal sleeve. The flange of the sleeve is connected with the flange at the left end of the cylinder, and the upper seal of the sealing sleeve (5) is connected with an oil pipe (7), the oil pipe is extended into the box, the lower part of the cavity (5) is sealed and connected with the oil pipe (8), and the inlet pipe is connected to the tank and connected with the oil pump. The characteristic of this sealing device is that the inlet pressure of the sealing sleeve is greater than the outlet pressure. The pressure difference makes the sealing sleeve expand, make the inner ring of the sealing sleeve close to the output shaft, and when the inner ring of the sealing sleeve is worn, the pressure in the cavity can still expand the seal sleeve, so that the inner ring of the seal sleeve is sealed between the inner ring and the output shaft.
【技术实现步骤摘要】
减速机的轴密封装置
本专利技术涉及一种转轴的密封装置,该密封装置用来防止减速机箱体中的机油沿输出轴或输入轴向外泄漏。
技术介绍
减速机箱体的底部注有机油,箱体内的油泵将机油通过油管喷射在转动部件上进行润滑,以降低其之间的摩擦。为防止机油沿输出轴(或输入轴)向外泄漏,在箱体与输出轴之间设有密封部件,如密封套、密封圈等,输出轴转动时会使密封部件磨损,使密封性能下降,这时需要更换密封部件。更换密封部件要停机还要拆卸相关零件,很不方便。
技术实现思路
针对现有技术的不足,本专利技术提出一种减速机的轴密封装置,该密封装置能自动补偿密封件磨损,延长密封部件的更换周期。本专利技术的技术方案是,一种减速机的轴密封装置,其包括筒体3,筒体右端的法兰与减速机的箱体2密封固定连接,减速机的输出轴1从筒体中伸出,其特征是,在筒体与输出轴之间设有轮胎状的柔性的密封套4,在密封套的左侧设有压套6,压套上的法兰与筒体左端的法兰连接,密封套的腔体5的上部密封连接有出油管7,出油管伸进箱体中,腔体5的下部密封连接有进油管8,进油管伸进箱体中与油泵连接。本轴密封装置的特点是,密封套腔体的进口压力大于出口压力,其压力差使密封套膨胀,使密封套的内环与输出轴紧贴,当密封套内环被磨损时,腔体中的压力仍能使密封套膨胀,使密封套的内环与输出轴之间保持密封。与现有技术相比,本轴密封装置利用油泵输油的压力自动补偿密封件磨损,延长密封部件的更换周期。附图说明图1为本专利技术的结构示意图。附图标志分别表示:1-输出轴、2-箱体、3-筒体、4-密封套、5-腔体、6-压套、7-出油管、8-进油管、9-箱体盖板、10-油 ...
【技术保护点】
1.一种减速机的轴密封装置,其包括筒体(3),筒体右端的法兰与减速机的箱体(2)密封固定连接,减速机的输出轴(1)从筒体中伸出,其特征是,在筒体与输出轴之间设有轮胎状的柔性的密封套(4),在密封套的左侧设有压套(6),压套上的法兰与筒体左端的法兰连接,密封套的腔体(5)的上部密封连接有出油管(7),出油管伸进箱体中,腔体(5)的下部密封连接有进油管(8),进油管伸进箱体中与油泵连接。
【技术特征摘要】
1.一种减速机的轴密封装置,其包括筒体(3),筒体右端的法兰与减速机的箱体(2)密封固定连接,减速机的输出轴(1)从筒体中伸出,其特征是,在筒体与输出轴之间设有轮胎状的柔性的密封套(4),在密...
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