一种轨道交通车辆用制动闸瓦结构
By designing a combination of support frame, sliding frame and telescopic cylinder, the problems of complex brake shoe structure and uneven contact in rail transit vehicles were solved, which improved the flexibility and efficiency of the braking process and ensured the smooth braking of the vehicle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENGYANG ZHENYANG AUTO FITTING CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-17
AI Technical Summary
The existing brake shoes of rail transit vehicles have a complex structure, and the contact between the brake shoes and the vehicle's brake wheels is uneven, which affects the braking effect.
A brake shoe structure including a support frame, a sliding frame, a fixed frame, and a telescopic cylinder was designed. The movement of the support frame and brake shoe is controlled by the telescopic cylinder to achieve uniform contact with the vehicle's brake wheel. The arc-shaped structure and the inner groove insertion fit are used to improve stability and friction.
The simplified structure improves the flexibility and efficiency of the braking process, ensuring smooth braking and rapid recovery of the vehicle.
Smart Images
Figure CN224515744U_ABST
Abstract
Claims
1. A brake shoe structure for rail transit vehicles, comprising a support frame (1), characterized in that: There are two support frames (1). A brake pad (2) is detachably installed inside the support frame (1). The brake pad (2) extends out from the opposite side of the support frame (1). A sliding frame (102) is connected to the opposite side of the support frame (1). A fixed frame (3) is provided on the vehicle body to assist the sliding frame (102) in sliding. A telescopic cylinder (5) is also provided on the vehicle body. The telescopic end of the telescopic cylinder (5) is rotatably connected to the thrust arm (4).
2. The brake shoe structure for rail transit vehicles according to claim 1, characterized in that: The support frame (1) has a downward-curving arc structure.
3. The brake shoe structure for rail transit vehicles according to claim 2, characterized in that: The support frame (1) has an inner groove on its inner side. The groove is located on the inner wall of the outer arc surface of the support frame (1). The brake pad (2) has a plug corresponding to the inner groove. The inner arc surface of the support frame (1) has a pressure strip (101) to assist the brake pad (2) in pressing.
4. The brake shoe structure for rail transit vehicles according to claim 3, characterized in that: The pressure strip (101) is bolted to the support frame (1).
5. The brake shoe structure for rail transit vehicles according to claim 1, characterized in that: The brake pad (2) has multiple grooves (201) on its surface.
6. The brake shoe structure for rail transit vehicles according to claim 5, characterized in that: The fixing frame (3) is in the shape of an inverted "T". The top of the fixing frame (3) is connected to the vehicle body. The horizontal end of the fixing frame (3) is provided with a through hole that slides with the sliding frame (102).
7. The brake shoe structure for rail transit vehicles according to claim 6, characterized in that: The sliding frame (102) includes a sliding part (102a) that slides with the horizontal end of the fixed frame (3). The sliding part (102a) has a connecting part (102b) at the end facing the support frame (1). The connecting part (102b) includes a plurality of inclined support rods. One end of the support rod is connected to the sliding part (102a), and the other end is connected to the support frame (1).
8. The brake shoe structure for rail transit vehicles according to claim 7, characterized in that: Each of the sliding frames (102) is rotatably connected to the movable end of the telescopic cylinder (5) by two thrust arms (4).