一种铁路制动机作用阀排风口自清洁装置
By utilizing the energy of the brake exhaust system through a self-cleaning device, the blockage of the exhaust port of the railway brake action valve is dynamically cleared, solving the problem of difficult maintenance of traditional devices and achieving a highly reliable cleaning effect with zero energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHA POWER SUPPLY SECTION YONGZHOU POWER WORKSHOP GUANGZHOU GRP CORP ON
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-17
AI Technical Summary
The exhaust vent of the valve in traditional railway brakes is easily clogged by mosquitoes and dust, causing the brake cylinder to release slowly or fail. Existing protective measures cannot effectively solve this problem, and maintenance is difficult.
Design a self-cleaning device, including a wire mesh cover, a pneumatic impeller, and vertical steel brushes, to achieve automatic cleaning by using braking exhaust energy. The pneumatic impeller and vertical steel brushes are linked by a rotating shaft to dynamically remove adhering substances.
It achieves self-cleaning without external energy or manual intervention, effectively preventing air vent blockage and improving the reliability and ease of maintenance of the braking system.
Smart Images
Figure CN224511129U_ABST
Abstract
Claims
1. A railway brake application valve exhaust port self-cleaning device characterized by, include: The interface component is equipped with a connection structure that mates with the exhaust port of the brake valve. The wire mesh cover is fixedly connected to the air outlet of the interface assembly at the top and has a cylindrical filter screen at the bottom. Self-cleaning mechanisms include: A support frame is fixed inside the upper part of the wire mesh cover, and a central hole is provided on the support frame; The bearing is installed in the center hole of the support frame; A rotating shaft is vertically mounted in a bearing, and its bottom end is provided with an impeller fixing part and a connecting rod fixing part; Pneumatic impeller, with an impeller fixing part fixedly connected to the rotating shaft; The cleaning brush assembly includes: Linkage rod, one end of which is fixedly connected to the linkage fixing part of the rotating shaft; The vertical steel brush strip is vertically connected to the end of the linkage rod away from the rotation axis, and the vertical steel brush strip forms a non-contact fit with the inner surface of the cylindrical filter screen.
2. The railway brake valve exhaust port self-cleaning device of claim 1, wherein, The interface component is an external thread interface, and the connection structure is an external thread structure, wherein the external thread structure is a G1 / 4 standard thread.
3. The railway brake valve exhaust port self-cleaning device of claim 1, wherein, The cylindrical filter screen is a double-layer sintered stainless steel mesh with a pore size of 0.8±0.05mm.
4. The railway brake valve exhaust port self-cleaning device of claim 1, wherein, The pneumatic impeller has nylon turbine blades with a blade inclination angle of 45°.
5. The railway brake valve exhaust port self-cleaning device of claim 1, wherein, The bristles of the vertical steel brush bar are composed of multiple φ0.2mm stainless steel wires arranged radially.
6. The railway brake valve exhaust port self-cleaning device of claim 1, wherein, The bearing is a miniature deep groove ball bearing with a sealing ring.
7. The railway brake valve exhaust port self-cleaning device of claim 1, wherein, The impeller fixing part and the connecting rod fixing part of the rotating shaft adopt a stepped shaft structure.
8. The railway brake valve exhaust port self-cleaning device of claim 7, wherein, The stepped shaft has a keyed connection structure at one end near the pneumatic impeller as an impeller fixing part.
9. The railway brake valve exhaust port self-cleaning device of claim 5, wherein, The distance between the brush bristles and the inner surface of the filter screen is 0.5-1mm.
10. The railway brake valve exhaust port self-cleaning device of claim 1, wherein, The bottom of the cylindrical filter screen is enclosed with a bottom steel mesh of the same material; the bottom of the vertical steel brush strip is horizontally connected to a bottom steel brush strip, and the bottom steel brush strip and the inner surface of the bottom steel mesh form a non-contact fit.