CN216708922U

CN216708922U - Wheel limit structure and vehicle of vehicle

Info

Publication number: CN216708922U
Application number: CN202123387747.1U
Authority: CN
Inventors: 张攀程
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-06-10
Anticipated expiration: 2031-12-29

Abstract

The utility model discloses a wheel edge structure of a vehicle and the vehicle, the wheel edge structure of the vehicle comprises: a drive shaft; the axle housing assembly is sleeved on the driving shaft; a hub bearing disposed between the drive shaft and the axle housing assembly; the hub flange is sleeved at the end part of the driving shaft; the brake disc is arranged on the hub flange; the brake is arranged on the axle housing assembly and selectively brakes the brake disc; the gear ring shaft is arranged on the driving shaft; and the wheel speed sensor is arranged on the axle housing assembly and is opposite to the gear ring. Through cup jointing the wheel hub bearing on the wheel hub flange for the center of wheel hub bearing arranges near wheel center, and wheel hub bearing atress is comparatively balanced, can effectively improve wheel hub bearing's life. In addition, the wheel edge structure of the vehicle is simple in structure, small in occupied space, convenient to disassemble and assemble and convenient to maintain in the later period.

Description

Wheel limit structure and vehicle of vehicle

Technical Field

The utility model relates to the technical field of wheel edge structures of vehicles, in particular to a wheel edge structure of a vehicle and the vehicle.

Background

The brake matched with the wheel rim of the rear drive axle of the minicar and the minicar in the current market is mainly a drum brake, the mainstream integrated electronic parking system (EPB) can not be installed, the gear ring or magnetic ring structure is not designed on the wheel rim of most of the minicars, and the wheel speed signal can not be output, the wheel rim structure is difficult to be used intelligently in an online control system and a complete vehicle, the stress working condition and the arrangement requirement of the hub bearing are not fully considered when the wheel rim structure is designed for some minicars and small electric vehicles, the design of the position of the hub bearing is unreasonable, and the service life of the wheel rim of the whole axle is influenced.

In the related technology, the bearing is directly installed on the half shaft, the outer end of the half shaft is provided with the hub flange, the axial size of the wheel edge structure is increased, the central plane of the hub bearing is difficult to be ensured at the center of the wheel, the internal stress of the bearing is unstable, and the service life of the bearing is influenced.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a wheel edge structure of a vehicle, which is characterized in that the hub bearing is sleeved on the hub flange, so that the center of the hub bearing is arranged near the center of a wheel, the stress of the hub bearing is balanced, and the service life of the hub bearing can be effectively prolonged.

The utility model also provides a vehicle.

A wheel edge structure of a vehicle according to an embodiment of a first aspect of the utility model includes: a drive shaft; the axle housing assembly is sleeved on the driving shaft; a hub bearing disposed between the drive shaft and the axle housing assembly; the hub flange is sleeved at the end part of the driving shaft; the brake disc is arranged on the hub flange; a brake disposed on the axle housing assembly and selectively braking the brake disc; a ring gear shaft disposed on the drive shaft; and the wheel speed sensor is arranged on the axle housing assembly and is opposite to the gear ring.

According to the wheel edge structure of the vehicle, the hub bearing is sleeved on the hub flange, so that the center of the hub bearing is arranged near the center of the wheel, the stress of the hub bearing is balanced, and the service life of the hub bearing can be effectively prolonged. In addition, the wheel edge structure of the vehicle is simple in structure, small in occupied space, convenient to disassemble and assemble and convenient to maintain in the later period.

According to some embodiments of the utility model, the ring gear shaft comprises: the wheel speed sensor comprises a shaft sleeve and a gear ring, wherein the gear ring is connected to the shaft sleeve, the shaft sleeve is sleeved on the driving shaft and synchronously rotates with the driving shaft, and the gear ring is arranged opposite to the wheel speed sensor.

According to some embodiments of the utility model, the hub flange is provided with a first mounting boss, the mounting boss is provided with a first mounting hole, the brake disc is provided with a second mounting hole, and the fastening piece penetrates through the second mounting hole and is fixedly connected with the first mounting hole.

According to some embodiments of the utility model, a second mounting boss is provided on the axle housing assembly and the brake is secured to the second mounting boss.

According to some embodiments of the present invention, the axle housing assembly comprises: the mounting bracket and the bridge pipe, the bridge pipe cover is established on the drive shaft and with mounting bracket fixed connection, be provided with on the mounting bracket second installation boss.

According to some embodiments of the utility model, the wheel rim structure of the vehicle further comprises: the bearing retainer ring is arranged at one end of the mounting bracket, a first limiting step is arranged at the other end of the mounting bracket, and the outer ring of the hub bearing is abutted between the bearing retainer ring and the first limiting step.

According to some embodiments of the utility model, the hub bearing sleeve is fixed on the hub flange and the inner ring of the hub bearing rotates synchronously with the hub flange.

According to some embodiments of the utility model, the hub flange is provided with a second limiting step, the gear ring shaft is provided with a limiting flange, the second limiting step corresponds to the limiting flange, and the inner ring of the hub bearing abuts between the limiting flange and the second limiting step.

According to some embodiments of the utility model, the hub bearing is a double row ball bearing.

A vehicle according to an embodiment of a second aspect of the utility model includes the wheel-side structure of the vehicle of the above-described embodiment.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a wheel rim structure of a vehicle according to an embodiment of the utility model;

fig. 2 is a side view of a wheel rim structure of a vehicle according to an embodiment of the utility model;

fig. 3 is a front view of a wheel rim structure of a vehicle according to an embodiment of the utility model;

fig. 4 is a sectional view of a wheel rim structure of a vehicle according to an embodiment of the utility model;

fig. 5 is an enlarged view of a portion a in fig. 4.

Reference numerals:

100. a wheel rim structure of the vehicle;

10. a drive shaft;

20. an axle housing assembly; 21. mounting a bracket; 211. a second mounting boss; 212. a first limit step; 213. a first via hole; 22. a bridge pipe; 221. a second via hole;

30. a hub bearing; 40. a hub flange; 41. a first mounting boss; 42. a second limit bulge; 50. a brake disc; 60. a brake; 70. a ring gear shaft; 71. a shaft sleeve; 72. a ring gear; 73. limiting and flanging; 80. and a bearing retainer ring.

Detailed Description

Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.

The following describes a wheel rim structure 100 of a vehicle according to an embodiment of the utility model with reference to fig. 1 to 5

The wheel rim structure 100 of the vehicle of the embodiment of the present invention includes: the driving shaft 10 and the axle housing assembly 20, wherein the axle housing assembly 20 is sleeved on the driving shaft 10; the axle housing assembly 20 is used for mounting the main speed reducer, the differential mechanism, the driving shaft 10 and the wheel assembly base body, and mainly plays a role in supporting and protecting the main speed reducer, the differential mechanism, the driving shaft 10 and the like. Generally, a conventional non-split drive axle housing is a rigid hollow beam supported on left and right drive wheels, in which drive members such as a final drive, a differential, and a drive shaft 10 are mounted. The axle housing assembly 20 can function to support the mass of the vehicle and to withstand road reaction and moment forces transmitted from the wheels and to the vehicle frame (or body) via the suspension, and the enclosed axle housing assembly 20 can prevent dirt from entering and damaging the environment in which the components within the axle housing assembly 20 are operated.

Wherein, the wheel rim structure 100 of the vehicle: the hub bearing 30 is arranged between the driving shaft 10 and the axle housing assembly 20, and the hub flange 40 is sleeved on the end part of the driving shaft 10. That is, the inner race of the hub bearing 30 is mounted on the hub flange 40, so that the center of the hub bearing 30 is close to the center of the wheel, thereby improving the service life of the hub bearing 30.

Further, the wheel rim structure 100 of the vehicle further includes: a brake disc 50 and a brake 60, the brake disc 50 being disposed on the hub flange 40, the brake 60 being disposed on the axle housing assembly 20, and the brake 60 selectively braking the brake disc 50. The brake 60 may be a disc brake 60, and the disc brake 60 may be capable of installing an integrated electronic parking system, so that the wheel rim structure 100 of the vehicle has a higher intelligence degree, thereby facilitating electronic parking of the vehicle. Particularly in the field of unmanned logistics vehicles, the unmanned logistics vehicle provided with the electronic parking can transport goods more conveniently and rapidly.

And, the wheel rim structure 100 of the vehicle further includes: a ring gear shaft 70 provided on the drive shaft 10, and a wheel speed sensor provided on the axle housing assembly 20, which is disposed opposite to the ring gear 72. That is, the wheel speed sensor can detect the rotation speed of the ring gear shaft 70, and since the ring gear shaft 70 rotates synchronously with the driving shaft 10, the wheel speed sensor can output a wheel speed signal of the driving shaft 10, which makes the vehicle more intelligent.

Moreover, the wheel rim structure 100 of the vehicle is simple in structure, low in production cost, small in occupied space, convenient to disassemble and assemble and convenient to maintain in the later period.

Therefore, the hub bearing 30 is sleeved on the hub flange 40, so that the center of the hub bearing 30 is arranged near the center of the wheel, the stress of the hub bearing is balanced, and the service life of the hub bearing 30 can be effectively prolonged. In addition, the wheel rim structure 100 of the vehicle has the advantages of simple structure, small occupied space, convenience in dismounting and mounting of each part and convenience in later maintenance.

As shown in fig. 4, the ring gear shaft 70 includes: the wheel speed sensor comprises a shaft sleeve 71 and a gear ring 72, wherein the gear ring 72 is connected to the shaft sleeve 71, the shaft sleeve 71 is sleeved on the driving shaft 10, the shaft sleeve 71 and the driving shaft 10 rotate synchronously, and the gear ring 72 is arranged opposite to the wheel speed sensor. That is, the sleeve 71 and the driving shaft 10 rotate synchronously, that is, the ring gear 72 can also rotate synchronously under the driving of the sleeve 71, so that the gear on the ring gear 72 is opposite to the wheel speed sensor, thereby enabling the wheel speed sensor to monitor the rotating speed of the driving shaft 10.

Specifically, when 56 gears are arranged on the ring gear 72, when the wheel speed sensor is opposite to any gear, the wheel speed sensor can generate the change of an electric signal, and when the 56-time signal change is monitored, the driving shaft 10 is proved to rotate for a circle, so that the wheel speed sensor can output a wheel speed signal according to the change times of the electric signal in the fixed time, and the signal collection of the whole vehicle control system is facilitated. Of course, the ring gear 72 may be provided with a different number of gears, and the greater the number of gears, the more accurate the wheel speed output signal of the wheel speed sensor.

And, axle housing assembly 20 is provided with a mounting hole in which the wheel speed sensor is disposed, the mounting hole being opposite to gear ring 72, i.e., the wheel speed sensor may correspond to the gear ring.

In addition, as shown in fig. 1 and 4, a first mounting boss 41 is provided on the hub flange 40, a first mounting hole is provided on the first mounting boss 41, a second mounting hole is provided on the brake disc 50, and a fastening member passes through the second mounting hole and is fixedly connected with the first mounting hole. That is, the hub flange 40 may be used to mount the hub bearing 30, and the first mounting boss 41 may be disposed on the hub flange 40, and the brake disc 50 may be mounted on the hub flange 40, so that when the brake disc 50 is braked by the brake 60, the hub flange 40 and the driving shaft 10 rotate synchronously, and thus the wheel speed of the driving shaft 10 may be reduced by the brake 60. Further, a first mounting hole is formed in the mounting boss, a second mounting hole is formed in the brake disc 50, and the bolt is fixedly connected with the first mounting hole after penetrating through the second mounting hole, so that the brake disc 50 can be fixed on the mounting boss. Further, first mounting hole and second mounting hole are a plurality ofly, and a plurality of first mounting holes evenly separate the setting on first installation boss 41, and a plurality of second mounting holes evenly separate the setting on brake disc 50, make the joint strength between brake disc 50 and the first installation boss 41 higher like this, and brake 60 is when braking brake disc 50, and brake disc 50 can not take place to rock, and the speed reduction of vehicle is comparatively steady.

Further, as shown in fig. 2 and 4, the axle housing assembly 20 is provided with a second mounting boss 211, and the brake 60 is fixed to the second mounting boss 211. With this arrangement, the second mounting bosses 211 may be formed as annular bosses having a height greater than the axle housing assembly 20, which may facilitate connection between the brake 60 and the second mounting bosses 211. Specifically, through bolt fixed connection between second installation boss 211 and the stopper 60, be provided with the third mounting hole on the second installation boss 211, be provided with the fourth mounting hole on the stopper 60, the bolt passes third mounting hole after with fourth mounting hole fixed connection, perhaps again, be provided with integrated into one piece's bolt on the stopper 60, the bolt passes the third mounting hole to with third mounting hole fixed connection, can realize the fixed mounting between stopper 60 and the axle housing subassembly 20 like this.

As shown in fig. 1 and 4, the axle housing assembly 20 includes: the mounting bracket 21 and the bridge pipe 22, the bridge pipe 22 is sleeved on the driving shaft 10, the bridge pipe 22 and the mounting bracket 21 are fixedly connected, and the mounting bracket 21 is provided with a second mounting boss 211. The bridge pipe 22 is sleeved on the driving shaft 10, the mounting support 21 is matched with the hub bearing 30, and the bridge pipe 22 and the mounting support 21 are welded with each other, so that when the driving shaft 10 rotates, the bridge pipe 22 assembly is in a fixed state. And, the axle tube 22 is the main body of the axle housing assembly 20, the sealed axle tube 22 prevents dirt from entering and damaging the working environment of the components within the housing, and the axle tube 22 is the support and containment for the final drive, differential, drive shaft 10, etc.

Further, as shown in fig. 4, the wheel rim structure 100 of the vehicle further includes: the bearing retainer 80, the bearing retainer 80 is disposed at one end of the mounting bracket 21, the other end of the mounting bracket 21 is provided with a first limiting step 212, and the outer ring of the hub bearing 30 abuts between the bearing retainer 80 and the first limiting step 212. That is, the outer ring of the hub bearing 30 abuts between the bearing collar 80 and the other end of the mounting bracket 21, so that the outer ring of the hub bearing 30 can be fixed to the mounting bracket 21. Specifically, be provided with the holding tank on the installing support 21, the one end of holding tank is provided with bearing retainer ring 80, and the other end of holding tank is provided with first spacing step 212, like this when wheel hub bearing 30's outer lane cooperation is in the holding tank, the outer lane can cooperate at first spacing step 212 and with between bearing retainer ring 80 to can realize the fixed of outer lane.

And, the hub bearing 30 is fixed on the hub flange 40 in a sleeved manner, and the inner ring of the hub bearing 30 and the hub flange 40 rotate synchronously. That is, the hub flange 40 rotates synchronously with the inner race, and the outer race of the hub bearing 30 rotates synchronously with the mounting bracket 21, such that when the drive shaft 10 rotates, the inner race rotates relative to the outer race, i.e., relative rotation occurs between the axle housing assembly 20 and the drive shaft 10, thereby enabling the drive shaft 10 to drive the wheel to rotate, and the wheel to move the vehicle.

As shown in fig. 4, the hub flange 40 is provided with a second limit step, the gear ring shaft 70 is provided with a limit flange 73, the second limit step corresponds to the limit flange 73, and the inner ring of the hub bearing 30 abuts between the limit flange 73 and the second limit step. That is, the inner race may be sandwiched between the ring gear shaft 70 and the hub flange 40, such that the inner race may be secured. Specifically, a second limit step is arranged on the hub flange 40, a limit flange 73 is arranged on the gear ring shaft 70, one end of the inner ring is abutted against the second limit step, and the other end of the inner ring is abutted against the limit flange 73, so that the inner ring can be fixed on the hub flange 40, and when the hub flange 40 and the drive shaft 10 rotate synchronously, the inner ring can rotate synchronously with the hub flange 40.

In addition, the hub flange 40 is press-fitted on the hub bearing 30, and the hub flange 40 is connected with the driving shaft 10 through splines to transmit power, and the driving shaft 10 locking nut presses the hub flange 40 by locking the driving shaft 10 to eliminate the play of the hub bearing 30.

The hub bearing 30 may be a double row ball bearing. The double-row ball bearing can bear radial load and axial load acting in two directions, namely, the double-row ball bearing is high in bearing capacity, so that a vehicle can bear larger load, and when the vehicle is used for unmanned logistics distribution, the vehicle can convey more goods.

In addition, the end of the driving shaft 10 is screwed with a lock nut, and one end of the hub flange 40 abuts against the lock nut, so that the axial limit of the lock nut can be realized.

The vehicle according to the second aspect embodiment of the utility model includes the wheel-side structure 100 of the vehicle of the above-described embodiment. The wheel edge structure 100 of the vehicle is arranged on the vehicle, so that the center of the hub bearing 30 is arranged near the center of a wheel, the stress of the hub bearing is balanced, and the service life of the hub bearing 30 can be effectively prolonged. In addition, the wheel rim structure 100 of the vehicle has a simple structure, occupies a small space, is convenient for dismounting and mounting each part, and is convenient for later maintenance.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the utility model.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A wheel rim structure of a vehicle, characterized by comprising:

a drive shaft;

the axle housing assembly is sleeved on the driving shaft;

a hub bearing disposed between the drive shaft and the axle housing assembly;

the hub flange is sleeved at the end part of the driving shaft;

the brake disc is arranged on the hub flange;

a brake disposed on the axle housing assembly and selectively braking the brake disc;

a ring gear shaft disposed on the drive shaft; and

and the wheel speed sensor is arranged on the axle housing assembly and is opposite to the gear ring shaft.

2. The wheel edge structure of a vehicle according to claim 1, characterized in that the ring gear shaft includes: the wheel speed sensor comprises a shaft sleeve and a gear ring, wherein the gear ring is connected to the shaft sleeve, the shaft sleeve is sleeved on the driving shaft and synchronously rotates with the driving shaft, and the gear ring is arranged opposite to the wheel speed sensor.

3. The vehicle wheel rim structure of claim 1, wherein the hub flange is provided with a first mounting boss, the first mounting boss is provided with a first mounting hole, the brake disc is provided with a second mounting hole, and a fastener passes through the second mounting hole and is fixedly connected with the first mounting hole.

4. The wheel rim structure of a vehicle according to claim 1, wherein a second mounting boss is provided on the axle housing assembly, and the brake is fixed to the second mounting boss.

5. The wheel rim structure of a vehicle according to claim 4, wherein the axle housing assembly includes: the mounting bracket and the bridge pipe, the bridge pipe cover is established on the drive shaft and with mounting bracket fixed connection, be provided with on the mounting bracket second installation boss.

6. The wheel edge structure of a vehicle according to claim 5, characterized by further comprising: the bearing retainer ring is arranged at one end of the mounting bracket, a first limiting step is arranged at the other end of the mounting bracket, and the outer ring of the hub bearing is abutted between the bearing retainer ring and the first limiting step.

7. The wheel rim structure of a vehicle according to claim 1, wherein the hub bearing sleeve is fixed to the hub flange and an inner ring of the hub bearing rotates in synchronization with the hub flange.

8. The wheel rim structure of a vehicle according to claim 7, characterized in that a second limit step is provided on the hub flange, the ring gear shaft is provided with a limit flange, the second limit step corresponds to the limit flange, and an inner ring of the hub bearing abuts between the limit flange and the second limit step.

9. The wheel edge structure of a vehicle according to claim 1, characterized in that the hub bearing is a double-row ball bearing.

10. A vehicle, characterized by comprising: the wheel rim structure of a vehicle according to any one of claims 1 to 9.