Friction braking structure with elastic buffering function

Abstract

The utility model relates to a friction brake structure with elastic buffering, which belongs to the technical field of friction plates and comprises a shaft sleeve hub friction disc, brake plates sleeved with the shaft sleeve hub friction disc are arranged on two sides of the shaft sleeve hub friction disc, and a plurality of pairs of disc springs are arranged between the brake plates and the shaft sleeve hub friction disc. A pair of semicircular pressure plate rings connected with the brake friction plates is arranged between the disc springs and the brake friction plates, and the pressure plate rings are arranged in limiting grooves of the shaft sleeve hub friction plate. The brake has the characteristics of simple structure, good brake stability and long service life. The problem that abrasion is too fast due to direct contact in the friction plate braking process is solved.

Description

Technical Field

[0001] This utility model relates to the field of friction pad technology, specifically to a friction braking structure with elastic buffer. Background Technology

[0002] Friction materials are widely used in brakes, clutches, and friction transmission devices in various transportation vehicles (such as automobiles, trains, airplanes, and ships) and various machinery and equipment. In braking devices, the frictional properties of friction materials are utilized to convert rotational kinetic energy into heat energy and other forms of energy, thereby enabling the transmission device to brake.

[0003] Given the increasing demands for environmental protection and safety in modern society, developed countries in the global automotive industry have rapidly carried out research and development of non-asbestos friction materials, and have successively launched non-asbestos semi-metallic friction materials, sintered metallic friction materials, alternative fiber-reinforced or polymer-bonded friction materials, composite material friction materials, ceramic fiber friction materials, and so on. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by providing a friction braking structure with elastic buffering, characterized by its simple structure, good braking stability, and long service life. It also solves the problem of excessive wear caused by direct contact of the friction pads during braking.

[0005] The above-mentioned technical problems of this utility model are mainly solved by the following technical solutions:

[0006] A friction braking structure with elastic buffer includes a bushing hub friction disc, on both sides of the bushing hub friction disc are brake friction pads that are sleeved on the bushing hub friction disc, and several pairs of disc springs are provided between the brake friction pads and the bushing hub friction disc. A pair of semi-circular pressure plate rings connected to the brake friction pads are provided between each disc spring and the brake friction pads, and the pressure plate rings are in the limiting groove of the bushing hub friction disc.

[0007] Preferably, the bushing hub friction disc includes an inner spline bushing, and the inner spline bushing is provided with a fixed steel plate integral with the inner spline bushing.

[0008] Preferably, both ends of the fixed steel sheet are provided with several copper-based linings arranged in a ring and movably pressed and braked with the brake friction pads. The copper-based linings are connected and fixed to the fixed steel sheet by rivets.

[0009] Preferably, the brake friction pad includes a brake steel pad, and a plurality of countersunk screws are provided between the brake steel pad and the pressure plate ring. Copper-based spray discs are provided at both ends of the brake steel pad in an integral sintering process with the brake steel pad.

[0010] Preferably, the copper-based spraying disc is provided with several oil grooves arranged in a ring.

[0011] Preferably, the oil groove is a radial groove, a mesh groove, a circular arc groove, or a waffle groove.

[0012] This invention can achieve the following effects:

[0013] This invention provides a friction braking structure with elastic buffering, which, compared with existing technologies, features a simple structure, good braking stability, and long service life. It solves the problem of excessive wear caused by direct contact of the friction pads during braking. Attached Figure Description

[0014] Figure 1 This is a structural cross-sectional view of the present invention.

[0015] Figure 2 This is a front view structural diagram of this utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the bushing hub friction disc in this utility model.

[0017] In the diagram: 1. Brake friction pad, 2. Bushing hub friction disc, 3. Disc spring, 4. Pressure plate ring, 5. Copper-based spray disc, 6. Oil groove, 7. Countersunk screw, 8. Brake steel plate, 9. Copper-based liner, 10. Rivet, 11. Fixed steel plate, 12. Internal spline bushing. Detailed Implementation

[0018] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0019] Example: Figure 1 , Figure 2 and Figure 3As shown, a friction braking structure with elastic buffer includes a bushing hub friction disc 2. The bushing hub friction disc 2 includes an inner spline bushing 12, on which a fixed steel plate 11 integrally formed is provided. At both ends of the fixed steel plate 11 are 18 copper-based lining plates 9 arranged in a ring and movably pressed against the brake friction pads 1. The copper-based lining plates 9 and the fixed steel plate 11 are connected and fixed by rivets 10. Brake friction pads 1 are fitted onto both sides of the bushing hub friction disc 2. Three pairs of disc springs 3 are provided between the brake friction pads 1 and the bushing hub friction disc 2. A pair of semi-circular pressure plate rings 4 connected to the brake friction pads 1 are provided between each disc spring 3 and the brake friction pads 1, and the pressure plate rings 4 are within the limiting grooves of the bushing hub friction disc 2. The brake friction pad 1 includes a brake steel pad 8. Six countersunk screws 7 are provided between the brake steel pad 8 and the pressure plate ring 4. Copper-based spray discs 5, integrally sintered with the brake steel pad 8, are provided at both ends of the brake steel pad 8. The copper-based spray disc 5 has 24 annularly distributed oil grooves 6. The oil grooves 6 can be radial grooves, grid grooves, arc grooves, or waffle grooves.

[0020] In summary, this friction braking structure with elastic buffer features simple structure, good braking stability, and long service life. It solves the problem of excessive wear caused by direct contact of the friction pads during braking.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0022] In summary, the above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A friction braking structure with elastic buffer, characterized in that: The device includes a bushing hub friction disc (2), on both sides of which are provided brake friction pads (1) that are fitted with the bushing hub friction disc (2). Several pairs of disc springs (3) are provided between the brake friction pads (1) and the bushing hub friction disc (2). A pair of semi-circular pressure plate rings (4) connected to the brake friction pads (1) are provided between the disc springs (3) and the brake friction pads (1). The pressure plate rings (4) are in the limiting groove of the bushing hub friction disc (2). The bushing hub friction disc (2) includes an inner spline bushing (12). The inner spline bushing (12) is provided with a fixed steel plate (11) that is integrated with the inner spline bushing (12). Several copper base linings (9) that are distributed in a ring and are movably pressed and braked with the brake friction pads (1) are provided at both ends of the fixed steel plate (11). The copper base linings (9) and the fixed steel plates (11) are connected and fixed by rivets (10).

2. The friction braking structure with elastic buffer according to claim 1, characterized in that: The brake friction pad (1) includes a brake steel pad (8), and a number of countersunk screws (7) are provided between the brake steel pad (8) and the pressure plate ring (4). The brake steel pad (8) has copper-based spray discs (5) integrally sintered with the brake steel pad (8) at both ends.

3. The friction braking structure with elastic buffer according to claim 2, characterized in that: The copper-based spraying disc (5) is provided with several oil troughs (6) arranged in a ring.

4. The friction braking structure with elastic buffer according to claim 3, characterized in that: The oil groove (6) is a radial groove, a grid groove, a circular arc groove or a waffle groove.

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