Airproof equipment for power driven gear case of high speed train

A technology for high-speed trains and sealing devices, which is applied in the field of railway machinery and can solve problems such as oil and gas backflow, oil leakage from gearboxes, and unsuitable gearboxes

Inactive Publication Date: 2004-01-14
CRRC QISHUYAN INSTITUTE CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

When this kind of non-spur gear rotates at high speed, it will produce a blowing effect on its side, so it is not only difficult to use the Bernoulli effect to stably form the above-mentioned negative pressure zone in a certain area between the gear and the box, but also It is also possible to form a positive pressure at the outlet of the final oil return hole and cause the lubricating oil to flow backward, c

Method used

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  • Airproof equipment for power driven gear case of high speed train
  • Airproof equipment for power driven gear case of high speed train
  • Airproof equipment for power driven gear case of high speed train

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Embodiment Construction

[0031] From the accompanying drawings given above, the technical solution of the present invention can be clearly understood. The object of the present invention and the technical solution for achieving the object will be more clearly understood through the description of specific embodiments in conjunction with the accompanying drawings.

[0032] One of the specific implementation methods:

[0033] It refers to an inventive structure with bearings in the penetrating part of the gearbox body, please refer to the attached figure 1 , 2 , 3. The gear case 10 among the present invention, the first static oil seal ring 6, the second static oil seal ring 5 and the third static oil seal ring 2 are all made of aluminum alloy, and the three static oil seal rings 2, 5 and 6 are processed respectively Afterwards, it is welded into one body; the bearing seat 8 and the first dynamic oil seal ring 4, the second dynamic oil seal ring 3 and the oil deflector ring 9 are all made of steel, t...

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Abstract

A sealing unit for the driven gear box of high-speed locomotive, where the lubricating oil is used, has a non-contact labyrinth seal mechanism, which features that a return oil buffering cavity is arranged in the return oil channel communicated with the internal cavity of box, the outlet of final return oil orifice is lower than the level of lubricating oil in the oil pool, and said return oil buffering cavity is communicated with said oil pool via said final return oil orifice. Its advantages are reasonable structure and high saeling effect.

Description

technical field [0001] The invention relates to a sealing device which is especially suitable for a gear box driven by a high-speed train power car lubricated by lubricating oil, and belongs to the technology of railway machinery. Background technique [0002] At present, for the lubrication of train drive gearboxes in my country, ordinary locomotives use grease, and quasi-high-speed locomotives use lubricating oil. However, whether it is grease or oil lubrication, there is a large amount of oil leakage, which seriously affects the service life of traction gears and transmission reliability. Safety and driving safety, and cause environmental pollution along the railway, at the same time, the leaked lubricating oil splashed on the track surface, also affects the performance of locomotive adhesion. [0003] my country's high-speed trains are currently being developed, tested and will soon enter the stage of commercial operation. However, during the development and testing proc...

Claims

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Application Information

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IPC IPC(8): B61C9/32B61F15/22
Inventor 周平
Owner CRRC QISHUYAN INSTITUTE CO LTD
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