Hydraulic transmission axle gear box body

Abstract

The invention discloses a hydraulic transmission axle gear box body of a rail vehicle, which comprises an upper box body and a lower box body, wherein corresponding first oil collecting grooves are formed in a first input shaft bearing support and a second input shaft bearing support; a second oil collecting groove is formed in a second intermediate shaft bearing support; a third oil collecting groove and a fourth oil collecting groove are formed in the upper box body; an inward extending boss is arranged on the box dividing surface of the lower box body; a plurality of fifth oil collecting grooves are formed in the inward extending boss; corresponding oil storage bins are arranged on the first input shaft bearing support, the second input shaft bearing support, a first intermediate shaft bearing support, the second intermediate shaft bearing support, a first output shaft bearing support and a second output shaft bearing support respectively; the heights of retaining edges of the oil storage bins are at least higher than 1 / 3-1 / 2 of the heights of the lowers rollers of corresponding bearings; an observation window is arranged on the upper box body; oil guide plates are arranged on the observation window; the lower edges of the oil guide plates are located above the first oil collecting grooves; and oil return holes are formed in the upper box body and the lower box body. The hydraulic transmission axle gear box body is compact in structure and reasonable in layout.

Description

technical field [0001] The invention relates to a rail vehicle power transmission device, in particular to an axle gear case body. Background technique [0002] With the rapid development of my country's economy and the acceleration of urbanization process, my country's subway construction is rapid. With the increase of subway traffic volume and operation density, more stringent requirements have been put forward for the maintenance efficiency and quality of subway lines, especially the problem of rail surface damage related to the safe operation of subway vehicles has become more and more prominent. For this reason, efficient and highly reliable subway maintenance vehicles have become a new demand for subway companies. [0003] Line maintenance vehicles generally have two working states, one is the high-speed traction operation state, which is used to pull the vehicle to the work site or return to the station; the other is the low constant speed operation state, which is u...

AI Technical Summary

Problems solved by technology

[0004] The existing high-speed traction axle gearbox products for maintenance vehicles mainly have the following deficiencies during use: in order to ensure the lubrication of the high-speed gearbox bearings when the vehicle is operating at a low and constant speed, a forced lubrication system is usually installed or a large amount of gear oil is added. Cause the problem of complex structure of gearbox or poor thermal balance performance

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