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Freight train dowty retarder based on ball screw mechanism

A ball screw, freight train technology, applied in transportation and packaging, railway car body parts, rail brakes, etc., can solve the problems of polluting the environment, deceleration performance of the deceleration top, and achieve high bearing capacity, reduced vibration, and stable position. Effect

Active Publication Date: 2019-07-12
SOUTHWEST JIAOTONG UNIV
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  • Claims
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AI Technical Summary

Problems solved by technology

[0005] In view of the problems in the prior art that the deceleration performance of the decelerator is reduced and the environment is polluted by the oil leakage of the decelerator, the present invention provides a freight train decelerator based on a ball screw mechanism. Reduced deceleration performance of deceleration head and environmental pollution caused by leakage

Method used

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  • Freight train dowty retarder based on ball screw mechanism
  • Freight train dowty retarder based on ball screw mechanism
  • Freight train dowty retarder based on ball screw mechanism

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Embodiment Construction

[0037] 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.

[0038] Combine below Figure 1 ~ Figure 3 The present invention will be described in detail.

[0039] A freight train deceleration roof based on a ball screw mechanism, comprising a roof 1 and a base 6, a hollow chamber is opened in the base 6, and the top of the hollow chamber is open. The top 1 is arranged in the opening and can slide up and down in the opening. It also includes a ball screw 2, the ball screw 2 is equipped with a nut 5, the top 1 is fixedly connected with the nut 5, the inner side of the hollow chamber opened in the base 6 is connected with a fixing device, the lower part of the ball screw 2 is connected with the fixed The device is rotatably connected, and the ball screw 2 is covered with a spring 7, and the spring 7 is located between the nut 5 and the fixing device. Wh...

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Abstract

The invention belongs to the field of retarders, and particularly relates to a freight train dowty retarder based on a ball screw mechanism. The freight train dowty retarder based on the ball screw mechanism solves the problems that the deceleration performance of the dowty retarder is reduced and the environment is polluted due to the oil leakage of the dowty retarder in the prior art. Accordingto the technical scheme, the freight train dowty retarder based on the ball screw mechanism comprises a roof (1), a base (6) and a ball screw (2). A nut (5) is arranged on the ball screw (2) in a matched mode, the roof (1) is fixedly connected with the nut (5), a fixed device is connected to the inner side of the base (6), and the lower part of the ball screw (2) is rotatably connected with the fixed device. A spring (7) sleeves the ball screw (2), and the spring (7) is located between the nut (5) and the fixed device. The freight train retarder based on the ball screw mechanism is applied tothe deceleration of freight trains.

Description

technical field [0001] The invention belongs to the field of deceleration tops, in particular to a freight train deceleration top based on a ball screw mechanism. Background technique [0002] The deceleration jack in the prior art is equipped with hydraulic oil inside and is installed on the inner or outer side of the rail. The sliding oil cylinder contacts the wheels to squeeze the internal hydraulic oil to perform braking work on the vehicle wheels. A speed regulating device for deceleration. Its working principle is: [0003] When the vehicle passes through the decelerator, its wheel set travel speed is lower than the critical speed set by the decelerator. At this time, there will be no large pressure difference between the upper and lower chambers of the sliding cylinder, and the speed valve will be kept open. state, the oil in the upper chamber of the sliding cylinder will flow to the lower chamber through the passage of the speed valve, because the upper chamber of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61K7/06
CPCB61K7/06
Inventor 吴小平陈诗伟漆令飞吴舜尧胡江来刘晓东何都文常锟
Owner SOUTHWEST JIAOTONG UNIV
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