Axle disc brake wheel end structure

Abstract

An axle disc brake wheel end structure comprises a hub shaft end, the hub shaft end is connected with a brake disc through a bolt A, an annular recess is formed in the inner side of the back face of the brake disc, an ABS gear ring is arranged in the recess, the ABS gear ring is connected to the brake disc through a bolt B, a spring washer is arranged between a nut of the bolt B and the ABS gear ring, and the end face of the ABS gear ring is a plane where a tooth groove is located. Compared with the prior art, the utility model has the technical effects that the brake disc is arranged on the back surface of the brake disc and is farther from a wheel, and the chance that mud splashed by the wheel is splashed on an ABS gear ring is reduced, so that the measurement of an ABS sensor is more accurate.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts, and specifically relates to an axle disc brake wheel end structure. Background Art

[0002] ABS, the full name of which is Anti-lock Brake System, is a braking device on vehicles. It uses electronic control to prevent the wheels from locking during emergency braking. Its function is to prevent the wheels from being locked during braking and to avoid pure sliding of the wheels on the road. It improves the directional stability and steering control ability of the vehicle during braking and shortens the braking distance. It is a vehicle ABS anti-lock gear ring safety device.

[0003] Among them, the ABS ring gear is the signal collection object. The ABS ring gear generates a wheel speed signal as the vehicle tire rotates, which is transmitted to the ECU through the alternating current generated by the sensor. The ABS signal system then performs data analysis to determine the tire speed and prevent the tire from locking.

[0004] Today's ABS gear ring is generally fixed to the wheel hub shaft end (also called the wheel hub shaft end, wheel hub bearing), and the wheel hub shaft end is fixed integrally with the wheel hub. Measuring the synchronous rotation of the wheel hub shaft end and the vehicle tire can complete the "generation of wheel speed signal", such as the patent document with publication number CN202896174U.

[0005] However, the ABS ring gear is installed on the end of the wheel hub shaft, which is closer to the wheel. The mud splashed by the wheel will splash onto the ABS ring gear, which may easily lead to inaccurate measurement by the ABS sensor. Utility Model Content

[0006] The technical problem to be solved by the utility model is: how to design an axle disc brake wheel end structure so that the ABS sensor can measure more accurately.

[0007] The technical solution of the utility model is specifically as follows:

[0008] A wheel end structure of an axle disc brake comprises a hub shaft end connected to a brake disc via a bolt A, a ring-shaped recess is provided on the inner side of the back of the brake disc, an ABS gear ring is provided in the recess, the ABS gear ring is connected to the brake disc via a bolt B, a spring washer is provided between the nut of the bolt B and the ABS gear ring, and the end face of the ABS gear ring is the plane where the tooth groove is located.

[0009] The hollow part of the hub shaft end is provided with an outer bearing, an inner bearing and a main shaft oil seal.

[0010] There are multiple evenly distributed bosses on the outer wall of the hub shaft end, and bolt holes that cooperate with bolt A are provided on the bosses. The bosses are conical, and the end close to the brake disc is the small head end. The large head end of the boss extends to the flange plate of the hub shaft end, and there is a recessed space between two adjacent bosses.

[0011] The flange at the hub shaft end is provided with a plurality of evenly distributed through holes for passing bolts C, and the hole wall of the through hole extends toward one side of the brake disc to form a boss A.

[0012] An annular reinforcing rib is provided on the inner side of the front face of the brake disc, and a plurality of evenly distributed screw holes for cooperating with bolts B are provided on the reinforcing rib. The hole wall of the screw hole extends toward one side of the wheel hub shaft end to form a boss B. A heat dissipation duct is provided between the reinforcing rib between two adjacent bosses B and the brake disc body.

[0013] The ABS gear ring is a stamped steel plate, and its edge is a flanging structure formed by stamping.

[0014] Compared with the prior art, the technical effect of the utility model is that the utility model is arranged on the back of the brake disc, which is farther away from the wheel, and the chance of mud splashed by the wheel splashing onto the ABS ring gear is reduced, making the ABS sensor measurement more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an exploded schematic diagram of the utility model.

[0016] Figure 2 It is a three-dimensional schematic diagram of the utility model.

[0017] Figure 3 It is a cross-sectional schematic diagram of the utility model.

[0018] Figure 4 This is a schematic diagram of the ABS ring gear.

[0019] Figure 5 is a schematic diagram of a brake disc. DETAILED DESCRIPTION

[0020] The utility model is described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] like Figure 1-4 A wheel end structure of an axle disc brake includes a hub shaft end 10 (also called a hub shaft end, a hub bearing), which is connected to a brake disc 20 via a bolt A21, a ring-shaped recess 201 is provided on the inner side of the back side (the end face away from the wheel) of the brake disc 20, an ABS gear ring 30 is provided in the recess 201, the ABS gear ring 30 is connected to the brake disc 20 via a bolt B32, a spring washer 31 is provided between the nut of the bolt B32 and the ABS gear ring 30, and the end face of the ABS gear ring 30 is the plane where the tooth groove 301 is located.

[0022] An outer bearing 11 , an inner bearing 12 , and a main shaft oil seal 13 are provided in the hollow portion of the hub shaft end 10 .

[0023] When the brake disc is braking, the temperature cannot be too high. In order to facilitate heat dissipation, a plurality of evenly distributed bosses 101 are provided on the outer wall of the hub shaft end 10. The bosses 101 are provided with bolt holes that cooperate with the bolts A21. The bosses 101 are conical, and the end close to the brake disc 20 is the small head end. The large head end of the boss 101 extends to the flange of the hub shaft end 10. There is a recessed space 103 between two adjacent bosses 101. In this way, the outer wall of the hub shaft end 10 is wavy, which increases the heat dissipation area of ​​the hub shaft end 10. At the same time, the hole wall strength of the bolt hole is not affected.

[0024] In order to further dissipate heat, the flange of the hub shaft end 10 is provided with a plurality of evenly distributed through holes for passing bolts C105 (bolts C are used to connect to the hub). The hole wall of the through hole extends to one side of the brake disc 20 to form a boss A104. The boss A104 increases the heat dissipation area of ​​the hub shaft end 10. At the same time, the hole wall of the through hole for passing bolts C105 becomes thicker, making the bolts C105 safer.

[0025] As shown in the figure, in order to further dissipate heat, a ring-mounted reinforcing rib 202 is provided on the inner side of the front side (the end face close to the wheel) of the brake disc 20, and a plurality of evenly distributed screw holes 203 for cooperating with the bolts B32 are provided on the reinforcing rib 202. The hole wall of the screw hole 203 extends toward one side of the hub shaft end 10 to form a boss B204, and a heat dissipation duct 205 is provided between the reinforcing rib 202 between two adjacent bosses B204 and the brake disc 20 body.

[0026] The ABS gear ring 30 is a stamped steel plate, and its edge is a flange structure formed by stamping.

[0027] Its working principle is:

[0028] When in use, the present application can be installed on the axle. This is the prior art and will not be described in detail.

[0029] Features of this application:

[0030] S1. The utility model is arranged on the back of the brake disc, which is farther away from the wheel. The chance of mud splashed by the wheel splashing onto the ABS gear ring is reduced, making the ABS sensor measurement more accurate.

[0031] S2. The hub shaft end is provided with heat dissipation reinforcement ribs (boss 101, boss A104). After being connected with the brake disc, there is good ventilation circulation space, which effectively optimizes the heat dissipation effect of the brake disc.

[0032] S3. The brake disc is also provided with heat dissipation reinforcement ribs (reinforcement ribs 202, bosses B204), which can better ventilate and dissipate heat from the brake disc, effectively reduce the heat transferred to the wheel hub during braking, extend the service life of the brake disc, and protect the normal working environment of the wheel end.

[0033] S4, symmetrical air duct design (heat dissipation duct 205), the structure is more resistant to umbrella-shaped deformation;

[0034] S5. The brake disc is provided with a positioning boss and a matching stop that cooperate with the ABS gear ring 30 to ensure that the gear ring of the wheel end is stable and reliable during operation and will not move to affect the stability of the ABS signal.

[0035] S6. The gear ring is designed with stamped steel plate. The flange structure formed by stamping is more resistant to deformation and has better structural stability. The brake disc and gear ring are connected by bolts, which is convenient for disassembly, assembly and maintenance.

[0036] For other contents, please refer to the prior art.

[0037] The above-described embodiments are only preferred embodiments of the present invention. It should be noted that those skilled in the art may make several changes and improvements without departing from the overall concept of the present invention, and these should also be regarded as within the protection scope of the present invention.

Claims

1. An axle disc brake wheel end structure, comprising a hub axle end (10) connected to a brake disc (20) via a bolt A (21), characterized in that: An annular recess (201) is provided on the inner side of the back side of the brake disc (20), an ABS gear ring (30) is provided in the recess (201), the ABS gear ring (30) is connected to the brake disc (20) via a bolt B (32), a spring washer (31) is provided between the nut of the bolt B (32) and the ABS gear ring (30), and the end face of the ABS gear ring (30) is the plane where the tooth groove (301) is located.

2. The axle disc brake wheel end structure according to claim 1, characterized in that: An outer bearing (11), an inner bearing (12), and a main shaft oil seal (13) are provided in the hollow portion of the hub shaft end (10).

3. The axle disc brake wheel end structure according to claim 2, characterized in that: A plurality of evenly distributed bosses (101) are provided on the outer wall of the hub shaft end (10), and bolt holes for cooperating with bolts A (21) are provided on the bosses (101). The bosses (101) are conical, and the end close to the brake disc (20) is a small head end. The large head end of the bosses (101) extends to the flange of the hub shaft end (10), and a recessed space (103) is formed between two adjacent bosses (101).

4. The axle disc brake wheel end structure according to claim 3, characterized in that: The flange of the hub shaft end (10) is provided with a plurality of evenly distributed through holes for passing bolts C (105), and the hole wall of the through hole extends toward one side of the brake disc (20) to form a boss A (104).

5. The axle disc brake wheel end structure according to claim 4, characterized in that: An annular reinforcing rib (202) is provided on the inner side of the front surface of the brake disc (20), and a plurality of evenly distributed screw holes (203) for cooperating with the bolts B (32) are provided on the reinforcing rib (202). The hole wall of the screw hole (203) extends toward one side of the hub shaft end (10) to form a boss B (204), and a heat dissipation duct (205) is provided between the reinforcing rib (202) between two adjacent bosses B (204) and the brake disc (20) body.

6. The axle disc brake wheel end structure according to claim 5, characterized in that: The ABS gear ring (30) is a stamped steel plate, and its edge is a flange structure formed by stamping.

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