Positioning and lubrication sealing structure of bogie-suspension bearing gear box

Abstract

The invention provides a positioning and lubrication sealing structure of a bogie-suspension bearing gear box. The positioning and lubrication sealing structure comprises a six-bar linkage mechanism hollow shaft, wherein the six-bar linkage mechanism hollow shaft is connected with car wheels, penetrates through the interior of a gear box body, and is connected with a big gear core through six bars and an end tooth transmission disc; the six bars are provided with rubber joints; the outer sides of the two ends of the big gear core are supported on bearing seats through a first cylindrical bearing and a second cylindrical bearing respectively; the bearing seats are mounted on the gear box body; the end tooth transmission disc is fixed on the big gear core through end teeth and bolts; a first sealing ring is compressed by bolt pins in the end tooth transmission disc, thereby achieving axial positioning of the first cylindrical bearing; oil inlet channels, oil return channels and an oil baffle plate are arranged on the gear box body and the bearing seats, thereby achieving oil lubrication of the first and second cylindrical bearings as well as sealing of the gear box body; and lubricating oil from two sides of the gear box body passes through a first labyrinth cavity, a second labyrinth cavity, a third labyrinth cavity, the first oil return channel, the second oil return channel, the third oil return channel, a middle buffer cavity and a final buffer cavity, and then indirectly flows back to an inner cavity of the gear box body.

Description

technical field [0001] The invention relates to a suspension type driving device of a rail locomotive, in particular to a positioning, lubrication and sealing structure of a gear box bearing of the suspension type driving device. Background technique [0002] The driving devices of passenger locomotives (or power cars) basically adopt the suspension type, and the gear boxes are generally load-bearing structures. The output end of the traction motor of the suspension type driving device is directly connected with the pinion shaft of the pinion gear located in the load-bearing gearbox, and the pinion gear is externally meshed with the large gear also located in the load-bearing gearbox. The transmission disc is connected with the hollow shaft of the six-link mechanism, and the hollow shaft of the six-link mechanism is connected with the wheel through the six-link. [0003] In order to improve the light weight and reliability requirements of the suspension drive device, a cons...

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Problems solved by technology

[0003] In order to improve the light weight and reliability requirements of the suspension drive device, a consensus has been reached in the industry on the use of cast aluminum alloy for the housing of the load-bearing gearbox and the use of oil lubrication for the bearings. has been inconclusive

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