Combined wear-resistant brake disc

Abstract

The utility model relates to a combined type wear-resistant brake disc which comprises a front base plate, a rear base plate and a plurality of connecting columns and is technically characterized in that an annular connecting disc is arranged in the center of the front base plate, a plurality of radial long grooves are evenly formed in the annular connecting disc, one end of each radial long groove extends to the inner edge of the annular connecting disc, and a plurality of heat dissipation cavities are evenly formed in the front base plate and the rear base plate respectively. Heat dissipation openings communicated with the heat dissipation cavity are formed in the peripheral faces of the front base plate and the rear base plate, annular bosses concentric with the back faces of the front base plate and the rear base plate are arranged on the back faces of the front base plate and the rear base plate respectively, annular grooves are formed in the annular bosses, annular wear-resisting pieces are buckled through the annular grooves, and the edges of the annular wear-resisting pieces are fixedly connected with the top faces of the annular bosses. And a heat dissipation hole group communicated with the heat dissipation cavity is formed in the annular wear-resistant sheet. Under the condition that the application range is wide, the shearing resistance is enhanced, the heat dissipation performance is good, the service life is long, and the safety performance is good.

Description

Technical Field

[0001] The utility model relates to the technical field of brake disc structures, in particular to a combined wear-resistant brake disc. Background Art

[0002] The rotating element in a disc brake friction pair is a disc-shaped brake disc, with its end surface serving as the working surface. The disc rotates along with the wheel or axle when the train or vehicle is in motion. When braking, the brake caliper clamps onto the disc, generating friction with the disc's friction surface to absorb kinetic energy, thereby slowing the vehicle and stopping it.

[0003] For example, CN 214534169 U discloses a combined wear-resistant brake disc comprising two base plates fixedly connected by a plurality of connecting posts. Six annularly arranged first chute grooves are defined on the outer sides of each base plate. Each base plate is provided with a plurality of friction assemblies, each comprising a ridge that engages within the first chute grooves. Friction plates are fixedly mounted on the outer sides of the ridges, and a plurality of fixing screws are threadedly mounted on the outer rings of the friction plates. Six annularly arranged second chute grooves are defined in the central portion of the inner sides of each base plate. Six connecting assemblies are provided between the base plates, each comprising a connecting rod. This utility model eliminates the need to replace the entire brake disc during maintenance, saving maintenance costs. The connecting assemblies allow for installation on axles of varying diameters. However, the following problems remain: 1. The connecting rods, as connectors to the axle, have poor shear resistance, posing a significant safety hazard during braking. 2. Despite the large number of friction plates, heat dissipation is poor, leading to rapid wear and tear. Utility Model Content

[0004] The purpose of the utility model is to provide a combined wear-resistant brake disc with a reasonable structure and reliable use to solve the above problems, which can enhance shear resistance, have good heat dissipation, long service life and good safety performance while ensuring a wide range of applications.

[0005] The technical solution of the utility model is:

[0006] A combined wear-resistant brake disc comprises a front substrate, a rear substrate, and a plurality of connecting columns connected between the front substrate and the rear substrate. The technical key points are: an annular connecting disc is provided in the center of the front substrate, and a plurality of radial long grooves are evenly provided on the annular connecting disc, and one end of the radial long groove extends to the inner edge of the annular connecting disc; a plurality of heat dissipation cavities are evenly provided in the front substrate and the rear substrate respectively, and heat dissipation ports connected to the heat dissipation cavities are provided on the outer peripheral surfaces of the front substrate and the rear substrate; annular bosses concentric with them are respectively provided on the opposite back surfaces of the front substrate and the rear substrate; annular grooves are provided on the annular bosses and annular wear-resistant plates are buckled with the annular grooves; the edge of the annular wear-resistant plate is connected and fixed to the top surface of the annular boss; a heat dissipation hole group connected to the heat dissipation cavity is provided on the annular wear-resistant plate.

[0007] In the above-mentioned combined wear-resistant brake disc, the inner side surface of the annular wear-resistant plate is provided with an annular insert inserted into the annular groove.

[0008] The above-mentioned combined wear-resistant brake disc has a plurality of screw holes on the inner and outer edges of the annular boss, and a stepped through hole corresponding to the screw holes on the inner and outer edges of the annular wear-resistant plate, and the screw tip passes through the stepped through hole and is screwed into the screw hole.

[0009] The beneficial effects of the utility model are:

[0010] 1. The annular connecting plate at the center of the front substrate is connected and fixed to the rotating shaft hub by using various radial long grooves and bolt pairs. The radial long grooves facilitate adjustment of the fixing position according to the position of the bolt pairs, and have a wide range of applications. Compared with the existing technology, the annular connecting plate has enhanced shear resistance and a high safety factor during braking.

[0011] 2. The front base plate and the rear base plate are respectively provided with a heat dissipation cavity, and the annular wear-resistant plate is provided with a heat dissipation hole group connected with the heat dissipation cavity, thereby significantly improving the heat dissipation performance, extending the service life, and not requiring frequent replacement, with good safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 yes Figure 1 It is the AA section;

[0014] Figure 3 yes Figure 2 Middle BB section;

[0015] Figure 4 yes Figure 2 Right side view of the center rear baseboard.

[0016] In the figure: 1. front base plate, 2. annular wear-resistant plate, 3. heat dissipation hole group, 4. screw, 5. annular connecting plate, 6. radial long groove, 7. bolt pair, 8. rotating shaft, 9. heat dissipation port, 10. rear base plate, 11. heat dissipation cavity, 12. connecting column, 13. annular boss, 14. screw hole, 15. annular groove. DETAILED DESCRIPTION

[0017] The utility model is described in detail according to the accompanying drawings.

[0018] like Figures 1 to 4 As shown, the combined wear-resistant brake disc includes a front substrate 1 , a rear substrate 10 , and a plurality of connecting posts 12 connected between the front substrate 1 and the rear substrate 10 .

[0019] The front substrate 1 has an annular connection plate 5 at its center. A plurality of radial slots 6 are evenly arranged on the annular connection plate 5 . One end of the radial slot 6 extends to the inner edge of the annular connection plate 5 .

[0020] A plurality of heat dissipation cavities 11 are evenly provided in the front substrate 1 and the rear substrate 10, respectively. Heat dissipation ports 9 communicating with the heat dissipation cavities 11 are provided on the outer circumferences of the front substrate 1 and the rear substrate 10. An annular boss 13 concentric with the front substrate 1 and the rear substrate 10 is provided on the opposite sides thereof. An annular groove 15 is provided on the annular boss 13, and the annular wear-resistant plate 2 is fastened by the annular groove 15. The inner side surface of the annular wear-resistant plate 2 is provided with an annular plug inserted into the annular groove 15. The edge of the annular wear-resistant plate 2 is connected and fixed to the top surface of the annular boss 13. In this embodiment, a plurality of screw holes 14 are provided on the inner and outer edges of the annular boss 13, respectively. Stepped through holes corresponding to the screw holes 14 are provided on the inner and outer edges of the annular wear-resistant plate 2, respectively. The tips of the screws 4 pass through the stepped through holes and are screwed into the screw holes 14. The annular wear-resistant plate 2 is provided with a heat dissipation hole group 3 communicating with the heat dissipation cavity 11.

[0021] Working principle:

[0022] 1. Before use, the annular connecting plate 2 is connected and fixed to the wheel hub of the vehicle shaft 8 by using the radial long grooves 6 and the bolt pairs 7, and has wide applicability.

[0023] 2. During operation, the internal heat generated by the braking on the annular wear-resistant plate 2 is discharged through the heat dissipation hole group 3, the heat dissipation cavity 11, and the heat dissipation port 9, which significantly improves the heat dissipation performance.

[0024] The above detailed description of the embodiments of the present invention is intended to be a preferred embodiment of the present invention and should not be construed as limiting the scope of implementation of the present invention. Any equivalent changes and improvements made within the scope of the present invention shall still fall within the scope of this patent.

Claims

1. A combined wear-resistant brake disc, comprising a front base plate, a rear base plate, and a plurality of connecting posts connected between the front base plate and the rear base plate, characterized in that: An annular connecting plate is provided in the center of the front substrate, and a plurality of radial long grooves are evenly provided on the annular connecting plate, and one end of the radial long groove extends to the inner edge of the annular connecting plate, and a plurality of heat dissipation cavities are evenly provided in the front substrate and the rear substrate respectively, and heat dissipation ports connected to the heat dissipation cavities are provided on the outer peripheral surfaces of the front substrate and the rear substrate, and annular bosses concentric with them are respectively provided on the opposite back surfaces of the front substrate and the rear substrate, and an annular groove is provided on the annular boss and an annular wear-resistant plate is buckled with the annular groove, and the edge of the annular wear-resistant plate is connected and fixed to the top surface of the annular boss, and a heat dissipation hole group connected to the heat dissipation cavity is provided on the annular wear-resistant plate.

2. The combined wear-resistant brake disc according to claim 1, characterized in that: The inner side surface of the annular wear-resistant plate is provided with an annular plug-in block inserted into the annular groove.

3. The combined wear-resistant brake disc according to claim 1, characterized in that: The inner edge and outer edge of the annular boss are respectively provided with a plurality of screw holes, and the inner edge and outer edge of the annular wear-resistant plate are respectively provided with stepped through holes corresponding to the screw holes, and the screw tips pass through the stepped through holes and are screwed into the screw holes.

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