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A structure for preventing oil leakage of traction motor

A traction motor and oil leakage technology, which is applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems of railway environmental pollution, pollution of the motor casing, the outside of the gearbox, and large oil leakage of the motor, so as to shorten the running distance, Effects of preventing oil blow-by and reducing the clearance at the start end

Active Publication Date: 2017-06-30
CSR CHENGDU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sometimes the motor leaks a lot of oil, which pollutes the motor casing and the outside of the gearbox, and pollutes the railway environment

Method used

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  • A structure for preventing oil leakage of traction motor
  • A structure for preventing oil leakage of traction motor
  • A structure for preventing oil leakage of traction motor

Examples

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Embodiment Construction

[0036] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0037] Such as figure 1 As shown, the traction motor in the present invention includes a motor chamber, a bearing chamber, and a gear box 21 . The gearbox 21 includes a pinion 23 , a bull gear 22 , and a gearbox lubricating oil 24 inside the gearbox 21 . The bearing chamber includes a rear end cover 1, a rear bearing cover 2, and a rear bearing 28, and a balance valve 11 is arranged on the rear bearing cover. The bearing chamber and the gear box 21 are sealed by a sealing ring 7 . The motor chamber includes an armature 26 and a stator 27 . The central axis pipe runs through the motor chamber, the bearing chamber and the gear box 21, and one end of the central axis is fixed by a round nut 25.

[0038] Such as figure 2 As shown, the rear end cover 1 and the rear bearing cover 2 of the trac...

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Abstract

The invention discloses a structure for preventing a traction motor from leaking oil. The structure comprises a back end cover and a back bearing cover; through holes are drilled in the upper portion of an inner hole, where an outer ring of a bearing is installed, of the back end cover, grooves are formed in the end, where the outer ring of the bearing is pressed, of the back bearing cover, the number of the grooves in the end of the back bearing cover is the same as the number of the through holes in the inner hole of the back end cover, the grooves are flush with the through holes, a sealing ring is rearranged, and a balance valve is additionally arranged. By means of the structure for preventing the traction motor from leaking oil, air ventilated through a cooling motor is led into a bearing chamber, the positive pressure is formed in the bearing chamber, the balance valve is additionally arranged to prevent the bearing chamber from forming the positive pressure, the sealing performance of a labyrinth oil seal is improved, the lubricating oil of a gear box is prevented from fleeing into the motor bearing chamber, and motor oil leakage inertia mass faults are avoided.

Description

technical field [0001] The invention belongs to the field of machinery manufacturing, in particular to a component of a locomotive traction motor. Background technique [0002] At present, after the traction motor of a locomotive is newly built, overhauled, and installed in a medium repair, when the locomotive is in trial operation and normal operation, the lubricating oil of the locomotive running gear box often leaks from the gear box to the leakage port on the rear bearing cap of the traction motor Leakage faults, and sometimes even a large amount of gearbox lubricating oil, resulting in oil shortage in the gearbox and increased gear wear. If the lubricating oil of the gearbox is not replenished in time, the teeth of the running gear of the locomotive will be peeled off, broken, and even the gears will be loose and cracked (the gears lack oil, the gears will dry and rub, and a large amount of heat will be generated, which will expand the inner hole of the gear and the ann...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K5/16
CPCH02K5/10H02K5/16
Inventor 黄强胡彬梁胜
Owner CSR CHENGDU
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