Fixing structure for ABS sensor, drive axle and vehicle

Abstract

The utility model relates to the field of vehicles, in particular to a fixing structure for an ABS sensor, a drive axle and a vehicle. The fixing structure for the ABS sensor comprises a welding block suitable for being welded on an axle housing; the bracket is detachably mounted on the welding block; the bracket comprises a mounting part suitable for mounting the ABS sensor and a connecting part fixedly connected with the mounting part, and the connecting part is detachably connected with the welding block through a bolt; the brake flange is suitable for sleeving the circumferential outer side of the axle housing, and the brake flange and the bracket are arranged at an interval; and the brake flange is provided with a notch matched with the ABS sensor. The fixing structure for the ABS sensor has the advantages of being simple in structure, small in size, high in vibration resistance, long in service life and high in reliability.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to a fixing structure for an ABS sensor, a drive axle and a vehicle. Background Art

[0002] ABS (Anti-lock Braking System) is a car safety control system designed to prevent the wheels from locking during emergency braking, thereby maintaining the vehicle's directional stability and steering ability. The working principle of the ABS system is to prevent the wheels from locking during braking by automatically controlling and adjusting the size of the braking force. It sends a signal that the wheel is about to lock through the sensor installed on the wheel. The controller instructs the regulator to reduce the oil pressure of the wheel brake cylinder and reduce the braking torque. After a certain period of time, the original oil pressure is restored. This cycle is repeated continuously (up to 5 to 10 times per second) to keep the wheel in a rotating state and have the maximum braking torque, thereby maintaining the maximum adhesion between the wheel and the ground, improving braking efficiency, significantly shortening the braking distance, reducing tire wear, and improving driving safety.

[0003] The parts of the ABS system used in existing vehicles on the axle include: ABS ring gear and ABS sensor. Among them, the ABS ring gear is installed on the wheel hub of the vehicle, and the ABS sensor is installed on the axle of the vehicle; when the vehicle is driving, the ABS ring gear rotates with the wheel hub, and the ABS sensor does not rotate and detects the rotation speed of the ABS ring gear to obtain the real-time vehicle speed. Therefore, the ABS sensor requires a suitable gap value between the ABS ring gear. However, the existing ABS sensor is fixed to the brake base plate of the axle through a bracket. With the popularization of the wheel hub bearing unit, the width of the wheel hub is reduced, and the distance between the brake base plate and the wheel hub is increased. The gap requirement between the ABS sensor and the ABS ring gear cannot be met, and the brake base plate and the wheel hub need to be redesigned, which is costly.

[0004] Therefore, this field needs a new technical solution to solve the above problems. Summary of the invention

[0005] In order to improve or solve the technical problem in the prior art that the ABS sensor is installed on the brake base plate and the clearance requirement between the ABS sensor and the ABS gear ring cannot be met, the utility model provides a fixing structure for the ABS sensor. The fixing structure for the ABS sensor includes: a welding block, suitable for welding on the bridge housing; a bracket, detachably mounted on the welding block; the bracket includes a mounting portion suitable for mounting the ABS sensor and a connecting portion fixedly connected to the mounting portion, the connecting portion being detachably connected to the welding block by bolts; a brake flange, suitable for being sleeved on the circumferential outer side of the bridge housing and spaced apart from the bracket; a notch matching the ABS sensor is provided on the brake flange.

[0006] The fixing structure of the ABS sensor of the utility model includes a welding block, a bracket and a brake flange. The welding block is welded on the bridge housing and is used to install the bracket. The bracket includes a mounting portion and a connecting portion, the mounting portion is used to install the ABS sensor, and the connecting portion is used to fix the mounting portion on the welding block. The structure is simple and the anti-vibration performance is excellent. By adjusting the position of the welding block, the position of the ABS sensor can be adjusted more conveniently, so that the gap requirement between the ABS sensor and the ABS gear ring can be met without changing the original structure of the axle. A notch matching the ABS sensor is formed on the brake flange, which can support and limit the ABS sensor, thereby ensuring the stability of the ABS sensor. Through the above-mentioned settings, the fixing structure of the ABS sensor of the utility model has the advantages of simple structure, small size, strong vibration resistance, high service life and high reliability.

[0007] In the preferred technical solution of the fixing structure for the ABS sensor, two connecting parts are provided, and the two connecting parts are arranged on opposite sides of the mounting part. Through the above arrangement, two connecting parts are provided, which can enhance the connection stability between the welding block and the bracket, and enhance the vibration resistance and reliability of the fixing structure.

[0008] In the preferred technical solution of the fixing structure for the ABS sensor, a threaded blind hole matching the bolt is provided on the welding block; and a threaded through hole matching the bolt is provided on the connecting portion. Through the above arrangement, the threaded connection facilitates the disassembly of the welding block and the connecting portion, and further facilitates the installation of the fixing structure.

[0009] In the preferred technical solution of the fixing structure for the ABS sensor, a protrusion is formed on the inner surface of the mounting portion, which is suitable for facing the ABS sensor. Through the above configuration, the arrangement of the protrusion can enhance the connection stability between the ABS sensor and the mounting portion.

[0010] In the preferred technical solution of the fixing structure for the ABS sensor, the end of the mounting portion close to the brake flange is flush with the welding block, and the end of the mounting portion away from the brake flange protrudes from the welding block. Through the above arrangement, the longer length of the mounting portion can effectively support and limit the ABS sensor, enhance the vibration resistance of the fixing structure, and ensure the stability of the ABS sensor.

[0011] In order to solve the above technical problems, the utility model also discloses a drive axle, which includes an axle housing, an ABS sensor and any one of the above fixing structures for the ABS sensor; the ABS sensor is installed on the axle housing through the fixing structure for the ABS sensor. Through the above arrangement, the drive axle of the utility model has the advantages of simple structure, small size, strong vibration resistance, long service life and high reliability by setting the fixing structure for the ABS sensor.

[0012] In the preferred technical solution of the above-mentioned drive axle, the fixing structure for the ABS sensor includes a welding block, a bracket and a brake flange; the welding block is welded to the outer peripheral wall of the bridge housing; the bracket is detachably connected to the welding block by bolts; the brake flange is sleeved on the circumferential outer side of the bridge housing and is fixedly connected to the bridge housing.

[0013] In the preferred technical solution of the above-mentioned drive axle, the drive axle also includes a wheel hub rotatably mounted on the circumferential outer side of the axle housing; the wheel hub is arranged on a side of the welding block away from the brake flange, and an ABS gear ring is fixed on the wheel hub.

[0014] In the preferred technical solution of the drive axle, a protective layer is provided on both the front and back sides of the ABS gear ring, and the protective layer is an epoxy resin protective layer. Through the above arrangement, the protective layer can prevent dirt from accumulating on the ABS gear ring, making it easier to wipe and clean the ABS gear ring.

[0015] In order to solve the above technical problems, the utility model also discloses a vehicle, which includes the above drive axle. Through the above arrangement, the utility model vehicle has the advantages of simple structure, small size, strong vibration resistance, long service life and high reliability by arranging the above drive axle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0017] Figure 1 It is a schematic diagram of an embodiment of the drive axle of the utility model.

[0018] Figure 2 It is another schematic diagram of an embodiment of the drive axle of the utility model.

[0019] List of reference numerals: 1. bridge housing; 2. wheel hub; 3. welding block; 4. bracket; 41. mounting portion; 42. connecting portion; 43. bolt; 5. brake flange; 51. notch; 6. ABS sensor; 7. ABS ring gear. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0021] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In order to improve or solve the technical problem in the prior art that the ABS sensor is installed on the brake bottom plate and the clearance requirement between the ABS sensor and the ABS gear ring cannot be met, the utility model provides a fixing structure for the ABS sensor. The fixing structure for the ABS sensor includes: a welding block 3, suitable for welding on the bridge housing 1; a bracket 4, detachably mounted on the welding block 3; the bracket 4 includes a mounting portion 41 suitable for mounting the ABS sensor 6 and a connecting portion 42 fixedly connected to the mounting portion 41, and the connecting portion 42 is detachably connected to the welding block 3 through a bolt 43; a brake flange 5, suitable for being sleeved on the circumferential outer side of the bridge housing 1 and spaced apart from the bracket 4; a notch 51 matching the ABS sensor 6 is provided on the brake flange 5.

[0024] Figure 1 It is a schematic diagram of an embodiment of the drive axle of the utility model. Figure 2 FIG. 2 is another schematic diagram of an embodiment of the drive axle of the utility model. Figure 1 and Figure 2 As shown, in one or more embodiments, the fixing structure for the ABS sensor of the utility model includes a welding block 3, a bracket 4 and a brake flange 5.

[0025] Continue to see Figure 1 and Figure 2 In one or more embodiments, the welding block 3 is suitable for welding on the bridge housing 1. The welding block 3 has an arcuate surface matching the bridge housing 1 and a mounting surface opposite to the arcuate surface. The mounting surface is a plane for mounting the bracket 4. Further, the bracket 4 is detachably mounted on the welding block 3 by bolts 43. Specifically, the bracket 4 includes a mounting portion 41 and a connecting portion 42 connected to the mounting portion 41. The mounting portion 41 is roughly cylindrical, and the ABS sensor 6 is embedded in the mounting portion 41. The connecting portion 42 is arranged on both sides of the mounting portion 41 for fixing the mounting portion 41 on the welding block 3. Further, a protrusion is formed on the inner surface of the mounting portion 41, and the protrusion faces the ABS sensor 6 to enhance the connection stability between the mounting portion 41 and the ABS sensor 6. Further, two connecting portions 42 are provided, and the two connecting portions 42 are arranged on opposite sides of the mounting portion 41. Based on Figure 1 In the described orientation, the mounting portion 41 extends in the left-right direction, and the two connecting portions 42 are respectively located on the front and rear sides of the mounting portion 41. Further, the two connecting portions 42 are detachably connected to the welding block 3 by bolts 43. Specifically, a threaded blind hole is provided on the welding block 3, and a threaded through hole is provided on the connecting portion 42. The bolts 43 pass through the threaded through holes and cooperate with the threaded blind holes, so as to fix the connecting portion 42 on the welding block 3. Further, the mounting portion 41 and the connecting portion 42 are integrally formed. The integral forming method does not require assembly processing and can be more conveniently installed on the welding block 3. Further, one end of the mounting portion 41 close to the brake flange 5 is flush with the welding block 3, and one end of the mounting portion 41 away from the brake flange 5 protrudes from the welding block 3, so that the length of the mounting portion 41 is greater than the width of the welding block 3 and the connecting portion 42. Further, the brake flange 5 is suitable for being sleeved on the circumferential outer side of the bridge housing 1, and is spaced apart from the bracket 4. Based on Figure 1 In the above-mentioned position, the brake flange 5 and the bracket 4 are arranged at intervals in the left-right direction. Furthermore, a notch 51 matching the ABS sensor 6 is provided on the brake flange 5. The notch 51 is used to support and limit the ABS sensor 6.

[0026] In order to improve or solve the technical problem in the prior art that the ABS sensor is installed on the brake base plate and the clearance requirement between the ABS sensor and the ABS ring gear cannot be met, the utility model also provides a drive axle, which includes a bridge housing 1, an ABS sensor 6 and the above-mentioned fixing structure for the ABS sensor.

[0027] Continue to see Figure 1 and Figure 2, the welding block 3 is welded on the outer peripheral wall of the bridge housing 1, the bracket 4 is detachably connected to the welding block 3 by bolts 43, and the brake flange 5 is sleeved on the circumferential outer side of the bridge housing 1 and is fixedly connected to the bridge housing 1. Further, the drive axle also includes a wheel hub 2 rotatably sleeved on the circumferential outer side of the bridge housing 1, the wheel hub 2 is arranged on the side of the welding block 3 away from the brake flange 5, and an ABS ring gear 7 is fixed on the wheel hub 2. Specifically, a wheel hub bearing unit is arranged between the wheel hub 2 and the bridge housing 1, so that the wheel hub 2 and the bridge housing 1 are rotatably connected. The ABS ring gear 7 is fixed to one end of the wheel hub 2 close to the welding block 3. Further, the ABS ring gear 7 is installed on the wheel hub 2 by interference fit. Further, a protective layer is provided on both the front and back sides of the ABS ring gear 7, and the protective layer is an epoxy resin protective layer. When the ABS ring gear 7 rotates with the wheel hub 2, the ABS sensor 6 will output positive alternating current, the frequency and amplitude of which are determined by the vehicle speed, and then the actual vehicle speed is measured.

[0028] In order to improve or solve the technical problem in the prior art that the ABS sensor is installed on the brake bottom plate and the clearance requirement between the ABS sensor and the ABS gear ring cannot be met, the utility model also provides a vehicle. The vehicle includes the above-mentioned drive axle. The vehicle can be a commercial vehicle. The utility model vehicle has the advantages of simple structure, small size, strong vibration resistance, long service life and high reliability by setting the above-mentioned drive axle.

[0029] So far, the technical scheme of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical schemes after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A fixing structure for an ABS sensor, characterized in that: A welding block (3), suitable for welding on the bridge housing (1); A bracket (4) is detachably mounted on the welding block (3); the bracket (4) comprises a mounting portion (41) suitable for mounting an ABS sensor (6) and a connecting portion (42) fixedly connected to the mounting portion (41), and the connecting portion (42) is detachably connected to the welding block (3) via a bolt (43); The brake flange (5) is suitable for being sleeved on the circumferential outer side of the bridge housing (1) and being arranged at a distance from the bracket (4); a notch (51) matching the ABS sensor (6) is provided on the brake flange (5).

2. The fixing structure for an ABS sensor according to claim 1, characterized in that: Two connecting portions (42) are provided, and the two connecting portions (42) are arranged on opposite sides of the mounting portion (41).

3. The fixing structure for ABS sensor according to claim 2, characterized in that: A threaded blind hole matching the bolt (43) is provided on the welding block (3); and a threaded through hole matching the bolt (43) is provided on the connecting portion (42).

4. The fixing structure for an ABS sensor according to claim 1, characterized in that: A protrusion is formed on the inner surface of the mounting portion (41) and is adapted to face the ABS sensor (6).

5. The fixing structure for ABS sensor according to claim 1, characterized in that: An end of the mounting portion (41) close to the brake flange (5) is flush with the welding block (3), and an end of the mounting portion (41) away from the brake flange (5) protrudes from the welding block (3).

6. A drive axle, characterized in that: include: Axle housing (1); ABS sensor (6); and The fixing structure for an ABS sensor as described in any one of claims 1 to 5; the ABS sensor (6) is installed on the bridge housing (1) through the fixing structure for an ABS sensor.

7. The drive axle according to claim 6, characterized in that: The fixing structure for the ABS sensor comprises a welding block (3), a bracket (4) and a brake flange (5); the welding block (3) is welded to the outer peripheral wall of the bridge housing (1); the bracket (4) is detachably connected to the welding block (3) by bolts (43); and the brake flange (5) is sleeved on the circumferential outer side of the bridge housing (1) and is fixedly connected to the bridge housing (1).

8. The drive axle according to claim 7, characterized in that: The drive axle further comprises a wheel hub (2) rotatably sleeved on the circumferential outer side of the axle housing (1); the wheel hub (2) is arranged on a side of the welding block (3) away from the brake flange (5), and an ABS gear ring (7) is fixed on the wheel hub (2).

9. The drive axle according to claim 8, characterized in that: A protective layer is provided on both the front and back sides of the ABS gear ring (7), and the protective layer is an epoxy resin protective layer.

10. A vehicle, characterized in that: include: The drive axle as claimed in claim 6.

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