CN219932790U - Brake system of new energy vehicle - Google Patents
Brake system of new energy vehicle Download PDFInfo
- Publication number
- CN219932790U CN219932790U CN202223599623.4U CN202223599623U CN219932790U CN 219932790 U CN219932790 U CN 219932790U CN 202223599623 U CN202223599623 U CN 202223599623U CN 219932790 U CN219932790 U CN 219932790U
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- Prior art keywords
- brake
- new energy
- energy vehicle
- shaft sleeve
- flange
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- 230000007704 transition Effects 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 9
- 230000008859 change Effects 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
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Abstract
The utility model discloses a brake system of a new energy vehicle, which comprises a brake bottom plate, a shaft sleeve, a flange disc and a brake drum, wherein the brake bottom plate is arranged on a motor end cover of the new energy vehicle; the outer circumference diameter of the shaft sleeve is smaller than the inner diameter of the brake bottom plate. The utility model is suitable for mounting the motor output flange with the brake, and on the premise of ensuring the service life of the spline of the flange, the integral flange is changed into the split flange, and the parts to be dismounted are connected by using screws, so that a special tool is not required to be used in maintenance, and the brake bottom plate can be conveniently dismounted for maintenance.
Description
Technical Field
The utility model mainly relates to the technical field of brakes, in particular to a brake system of a new energy vehicle.
Background
Currently, for new energy logistics vehicles and light trucks, a brake is mounted on the output end of a motor in a common structure. As shown in fig. 1, a typical mounting structure of the flange band brake is that a brake bottom plate 6 is mounted on a motor end cover 7 through screws, a flange 5 is mounted on a rotating shaft 1, the right end is positioned through a shaft shoulder of the rotating shaft 1, the flange is axially locked through a cushion block 3 and a round nut 4, and a brake drum 2 is mounted on the flange 5 through screws. The disadvantage of this kind of mounting structure is unfavorable for the maintenance and the change of brake bottom plate, because the stopper is vulnerable part, needs periodic maintenance and change vulnerable part, and when maintaining the dismantlement, need dismantle the flange earlier, then just can pull down brake bottom plate, simultaneously, in order to conveniently dismantle the flange, often adopt clearance fit between flange internal spline and the pivot external spline, in the vehicle start-stop in-process, the pivot can take place for a short time relative rotation with the flange, has reduced spline life, also has the loose risk of lock nut simultaneously. If the internal spline and the external spline of the rotating shaft are in transition fit, a special tool is required to disassemble the flange, so that the on-site maintenance is inconvenient.
Disclosure of Invention
The technical problem to be solved by the utility model is as follows: aiming at the technical problems in the prior art, the utility model provides a brake system of a new energy vehicle, which is convenient to assemble and disassemble.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows:
the brake system of the new energy vehicle comprises a brake bottom plate, a shaft sleeve, a flange disc and a brake drum, wherein the brake bottom plate is arranged on a motor end cover of the new energy vehicle, the shaft sleeve is sleeved on a motor rotating shaft, the flange disc is detachably fastened on the shaft sleeve, and the brake drum is arranged on the outer end surface of the flange disc; the outer circumference diameter of the shaft sleeve is smaller than the inner diameter of the brake bottom plate.
As a further improvement of the above technical scheme:
the shaft sleeve is an inner spline shaft sleeve, and the inner spline of the inner spline shaft sleeve is in transition fit with the outer spline of the rotating shaft.
One end of the shaft sleeve is positioned through a shaft shoulder of the motor rotating shaft, and the other end of the shaft sleeve is axially locked on the rotating shaft through a cushion block and a round nut.
The circumference of the shaft sleeve is provided with a plurality of evenly distributed screw holes, the circumference of the flange plate is correspondingly provided with a plurality of evenly distributed through holes, and the shaft sleeve and the flange plate are locked by a fastener.
The fastener is a screw.
The number of the screw holes is 4-8.
The brake drum is mounted on the outer end surface of the flange disc by screws.
The brake bottom plate is mounted on a motor end cover of the new energy vehicle through screws.
Compared with the prior art, the utility model has the advantages that:
the brake system changes the existing integral flange into a split flange, and specifically consists of a flange disc and a shaft sleeve; the outer circumference diameter of the shaft sleeve is smaller than the inner diameter of the brake bottom plate, and the flange disc is detachably fastened on the shaft sleeve, so that the brake bottom plate can be conveniently installed or detached during disassembly and assembly.
The utility model is suitable for mounting the motor output flange with the brake, and on the premise of ensuring the service life of the spline of the flange, the integral flange is changed into the split flange, and the parts to be dismounted are connected by using screws, so that a special tool is not required to be used in maintenance, and the brake bottom plate can be conveniently dismounted for maintenance.
Drawings
Fig. 1 is a schematic view of a prior art brake mounting structure.
Fig. 2 is a schematic structural view of an embodiment of the brake system of the present utility model.
Legend description: 1. a rotating shaft; 2. a brake drum; 3. a cushion block; 4. a round nut; 5. a flange; 6. a brake base plate; 7. a motor end cover; 8. a shaft sleeve; 9. a flange plate; 10. a fastener.
Detailed Description
The utility model is further described below with reference to the drawings and specific examples.
As shown in fig. 2, the brake system of the new energy vehicle according to the embodiment of the utility model comprises a brake bottom plate 6, a shaft sleeve 8, a flange disc 9 and a brake drum 2, wherein the brake bottom plate 6 is arranged on a motor end cover 7 of the new energy vehicle, the shaft sleeve 8 is sleeved on a motor rotating shaft 1, the flange disc 9 is detachably fastened on the shaft sleeve 8, and the brake drum 2 is arranged on the outer end surface of the flange disc 9 through screws; the outer circumferential diameter of the sleeve 8 is smaller than the inner diameter of the brake spider 6. When the vulnerable parts of the brake bottom plate 6 need to be maintained, the brake drum 2 can be detached firstly, then the flange disc 9 is detached from the shaft sleeve 8, and finally the brake bottom plate 6 is detached, so that the assembly and the disassembly are simple.
The brake system changes the existing integral flange into a split flange, and specifically consists of a flange disc 9 and a shaft sleeve 8; wherein the outer circumference diameter of axle sleeve 8 is less than the internal diameter of stopper bottom plate 6, and flange dish 9 can dismantle the fastening on axle sleeve 8, is dismantling, can conveniently install or dismantle stopper bottom plate 6.
In a specific embodiment, the sleeve 8 is an internal spline sleeve, and the internal spline of the internal spline sleeve is in transition fit with the external spline of the rotating shaft 1. One end of the shaft sleeve 8 is positioned through a shaft shoulder of the motor rotating shaft 1, and the other end of the shaft sleeve 8 is axially locked on the rotating shaft 1 through the cushion block 3 and the round nut 4. Wherein, the internal spline shaft sleeve 8 is in transition fit with the rotating shaft 1, thereby prolonging the service life of the spline, and simultaneously avoiding the relative rotation and further causing the risk of loosening the round nut 4.
In a specific embodiment, the circumference of the shaft sleeve 8 is provided with a plurality of uniformly distributed screw holes, and the circumference of the flange plate 9 is correspondingly provided with a plurality of uniformly distributed through holes, so that the shaft sleeve 8 and the flange plate 9 are locked by a fastener 10 (such as a screw or a bolt). Specifically, the number of screw holes, through holes and screws is 4 to 8, preferably six. Of course, in other embodiments, the size and number of screw holes, through holes, and screws may be modified depending on the amount of torque required to be transferred by the flange.
The utility model is suitable for mounting the motor output flange with the brake, and on the premise of ensuring the service life of the spline of the flange, the integral flange is changed into the split flange, and the parts to be dismounted are connected by using screws, so that a special tool is not required to be used in maintenance, and the brake bottom plate can be conveniently dismounted for maintenance.
The above is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the utility model without departing from the principles thereof are intended to be within the scope of the utility model as set forth in the following claims.
Claims (8)
1. The brake system of the new energy vehicle is characterized by comprising a brake bottom plate (6), a shaft sleeve (8), a flange disc (9) and a brake drum (2), wherein the brake bottom plate (6) is arranged on a motor end cover (7) of the new energy vehicle, the shaft sleeve (8) is sleeved on a motor rotating shaft (1), the flange disc (9) is detachably fastened on the shaft sleeve (8), and the brake drum (2) is arranged on the outer end surface of the flange disc (9); the outer circumferential diameter of the shaft sleeve (8) is smaller than the inner diameter of the brake bottom plate (6).
2. The brake system of a new energy vehicle according to claim 1, characterized in that the bushing (8) is an internally splined bushing, the internal splines of which are in a transition fit with the external splines of the rotating shaft (1).
3. The brake system of the new energy vehicle according to claim 2, wherein one end of the shaft sleeve (8) is positioned through a shaft shoulder of the motor rotating shaft (1), and the other end of the shaft sleeve (8) is axially locked on the rotating shaft (1) through the cushion block (3) and the round nut (4).
4. A brake system for a new energy vehicle according to claim 1, 2 or 3, characterized in that a plurality of evenly distributed screw holes are formed in the circumference of the shaft sleeve (8), a plurality of evenly distributed through holes are correspondingly formed in the circumference of the flange disc (9), and the shaft sleeve (8) and the flange disc (9) are locked by a fastener (10).
5. The brake system of a new energy vehicle according to claim 4, characterized in that the fastener (10) is a screw.
6. The brake system of a new energy vehicle according to claim 4, wherein the number of screw holes is 4 to 8.
7. A brake system for a new energy vehicle according to claim 1 or 2 or 3, characterized in that the brake drum (2) is mounted on the outer end face of the flange disc (9) by means of screws.
8. A brake system for a new energy vehicle according to claim 1 or 2 or 3, characterized in that the brake pad (6) is mounted on the motor end cap (7) of the new energy vehicle by means of screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223599623.4U CN219932790U (en) | 2022-12-22 | 2022-12-22 | Brake system of new energy vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223599623.4U CN219932790U (en) | 2022-12-22 | 2022-12-22 | Brake system of new energy vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219932790U true CN219932790U (en) | 2023-10-31 |
Family
ID=88494713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223599623.4U Active CN219932790U (en) | 2022-12-22 | 2022-12-22 | Brake system of new energy vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219932790U (en) |
-
2022
- 2022-12-22 CN CN202223599623.4U patent/CN219932790U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |