CN220060421U - Differential disc type parking brake assembly - Google Patents
Differential disc type parking brake assembly Download PDFInfo
- Publication number
- CN220060421U CN220060421U CN202320117356.8U CN202320117356U CN220060421U CN 220060421 U CN220060421 U CN 220060421U CN 202320117356 U CN202320117356 U CN 202320117356U CN 220060421 U CN220060421 U CN 220060421U
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- Prior art keywords
- disc
- differential
- brake
- cylinder body
- screw rod
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- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 238000003860 storage Methods 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 12
- 239000010720 hydraulic oil Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 238000011065 in-situ storage Methods 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
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- Braking Arrangements (AREA)
Abstract
The utility model relates to a differential disc type parking brake assembly, which comprises a drive axle, a differential arranged in the drive axle, a transmission shaft for providing power for the differential, a brake disc arranged on the transmission shaft and rotating along with a rotating shaft, a mounting frame arranged on the drive axle, a brake disc arranged on the mounting frame and corresponding to the brake disc, and a brake arranged on the mounting frame and used for pushing the brake disc to the brake disc, wherein the brake comprises a cylinder body and a piston movable in the cylinder body, the two ends of the piston in the axial direction are arranged as a first end and a second end, the first end is arranged corresponding to the brake disc, the elastic mechanism is arranged corresponding to the second end of the piston, an oil cavity used for enabling the piston to axially move in the cylinder body and pushing the elastic mechanism is arranged in the cylinder body, and an oil inlet and an oil outlet communicated with the oil cavity are arranged on the cylinder body. The utility model has the advantages of simple structure, small occupied space and convenient maintenance.
Description
Technical Field
The present utility model relates to a differential disc parking brake assembly.
Background
The differential mechanism is an important part of a drive axle, and has the function of transmitting power to two half shafts so that the two half shafts rotate at different speeds, and when a vehicle turns, the rotation speeds of two wheels can be different through the differential mechanism, so that the turning is smoothly realized. However, in some occasions, when a certain driving wheel slips, power is continuously transmitted to the wheel on the other side, so that the vehicle is difficult to advance and only rotates in situ, therefore, the differential is required to be locked for braking, one method is to brake the power input shaft of the differential, and the existing braking structure is complex, occupies large space and is inconvenient to maintain. In addition, the brake is required to be released by hydraulic oil, and the brake is difficult to release under the condition of no hydraulic oil, so that the maintenance of the brake is not facilitated.
In view of this, the present inventors have conducted intensive studies on the above problems, and have produced the present utility model.
Disclosure of Invention
The utility model aims to provide a differential disc type parking brake assembly which is simple in structure, small in occupied space and convenient to maintain.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the differential mechanism disc type parking brake assembly comprises a drive axle, a differential mechanism arranged in the drive axle, a transmission shaft used for providing power for the differential mechanism, a brake disc arranged on the transmission shaft and rotating along with the rotation shaft, a mounting frame arranged on the drive axle, a brake disc arranged on the mounting frame and corresponding to the brake disc, a brake used for pushing the brake disc to the brake disc, and a piston capable of moving in the cylinder body.
As a preferred mode of the utility model, an end cap is provided on one end of the cylinder, and the elastic mechanism is provided between the end cap and the second end of the piston.
As a preferred mode of the present utility model, the end cap is locked to the cylinder body by a screw.
As a preferable mode of the utility model, the second end of the piston is provided with a containing groove extending towards the first end, the containing groove is provided with a first containing section, a second containing section and a third containing section, the first containing section, the second containing section and the third containing section are sequentially distributed from the first end to the second end, the piston further comprises an adjusting bolt extending into the containing groove from the end cover, the adjusting bolt comprises a screw rod, a screw head arranged at one end of the screw rod and a nut arranged at the other end of the screw rod, the screw head is positioned at the first containing section, the nut is positioned outside the containing cavity and is in threaded fit with the screw rod, a guide mechanism for guiding the screw rod to axially move is arranged in the containing groove, and a limit table matched with the screw head is formed at the joint of the first containing section and the second containing section.
As a preferable mode of the utility model, the guide mechanism comprises a guide rib arranged on the screw rod and a guide ring used for guiding the screw rod to axially move, the guide ring is arranged in the storage groove, and the guide ring is sleeved outside the screw rod corresponding to the guide rib.
In a preferred mode of the utility model, sealing rings are arranged at two ends of the oil liquid chamber in the cylinder body.
As a preferable mode of the present utility model, the elastic mechanism is a spring or a disc spring.
In a preferred embodiment of the present utility model, there are two brakes, and the two brakes are provided separately on both sides of the brake disc.
As a preferable mode of the utility model, the mounting frame is provided with a guide rod, and the brake block is slidably sleeved on the guide rod.
As a preferred form of the utility model, the mounting is screw-locked to the drive axle.
According to the technical scheme, the brake disc is arranged on the transmission shaft, the brake disc is arranged on the mounting frame, and the brake disc is pushed to the brake disc through the elastic mechanism, so that the transmission shaft is braked, the differential mechanism driven by the transmission shaft is locked, oil is not required to be used in parking braking, the structure is simple, the disc type brake is adopted, the structure is compact, the maintenance is convenient, and in running, the brake disc is separated from the brake disc by pushing the piston through hydraulic oil, so that brake release is realized. Furthermore, the screw rod can be moved by adjusting the bolt and screwing the nut to drive the elastic mechanism and the piston to move, and the brake is released under the parking condition, so that the maintenance is convenient.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a partial cross-sectional view of another angle of the present utility model.
Fig. 3 is a schematic view of the structure of the brake disc, the mounting frame and the brake according to the present utility model.
Fig. 4 is a schematic cross-sectional view of a brake disc, a mounting bracket and a brake according to the present utility model.
Fig. 5 is an enlarged view at a in fig. 4.
In the figure:
drive axle 10 drive shaft 11
Mounting frame 20
Brake 40 of brake disc 30
Cylinder 41 piston 42
Elastic mechanism 44 of adjusting bolt 43
Guide ring 46 of end cap 45
Oil chamber 47 sealing ring 48
First end 421 and second end 422
The first receiving section 423 and the second receiving section 424
Third storage section 425 stop 426
Screw 314 nut 432
Screw head 433 guides rib 434
Guide rod 51 of brake pad 50
Detailed Description
In order to further explain the technical scheme of the present utility model, the following is described in detail with reference to examples.
Referring to fig. 1 to 5, a differential disc type parking brake assembly includes a transaxle 10, a differential provided in the transaxle 10, and a propeller shaft 11 for supplying power to the differential, the propeller shaft 11 being rotatably mounted on the transaxle 10, and power being transmitted to the differential through the propeller shaft 11, which are conventionally configured in the conventional transaxle 10, and will not be described in detail herein. The utility model also comprises a brake disc 30 which is arranged on the transmission shaft 11 and rotates along with the transmission shaft 11, a mounting frame 20 is arranged on the drive axle 10, the mounting frame 20 is locked on the drive axle 10 through screws, in the embodiment, the mounting frame 20 is two discs which are locked together, an installation space is formed in each disc, a brake block 50 is arranged on the mounting frame 20 corresponding to the brake disc 30, and the brake block 50 is positioned in the installation space. The mounting frame 20 is also provided with a brake 40 for pushing the brake pad 50 to the brake disc 30, the brake 40 comprises a cylinder 41 and a piston 42 which can move in the cylinder 41, two ends of the piston 42 along the axial direction are provided with a first end 421 and a second end 422, the first end 421 is arranged corresponding to the brake disc 30, the mounting frame also comprises an elastic mechanism 44 for pushing the brake pad 50 to the brake disc 30, the elastic mechanism 44 is arranged corresponding to the second end 422 of the piston 42, the cylinder 41 is internally provided with an oil cavity 47 for enabling the piston 42 to move axially in the cylinder 41 and pushing the elastic mechanism 44, the cylinder 41 is provided with an oil inlet and an oil outlet which are communicated with the oil cavity 47, and hydraulic oil is injected into and sent out from the oil cavity 47 through the oil inlet and the oil outlet. In the parking condition, the brake pad 50 is abutted against the brake pad 50 through the elastic mechanism 44, so that braking is realized, and during driving, hydraulic oil is injected into the oil cavity 47, so that the elastic mechanism 44 is pushed, and braking release is realized.
As a preferred form of the utility model, an end cap 45 is provided on one end of the cylinder 41, and the resilient means 44 is provided between the end cap 45 and the second end 422 of the piston 42. As a preferred form of the utility model, the end cap 45 is screw-locked to the cylinder 41.
As a preferred mode of the present utility model, the second end 422 of the piston 42 is provided with a receiving groove extending toward the first end 421, the receiving groove is provided with a first receiving section 423, a second receiving section 424 and a third receiving section 425, the first receiving section 423, the second receiving section 424 and the third receiving section 425 are sequentially arranged from the first end 421 to the second end 422, the present utility model further comprises an adjusting bolt 43 extending into the receiving groove from the end cover 45, the adjusting bolt 43 comprises a screw 31, a screw head 433 arranged at one end of the screw 31 and a nut 432 arranged at the other end of the screw 31, the screw head 433 has a larger diameter than the screw 31, the screw head 433 is positioned at the first receiving section 423, the nut 432 is positioned outside the receiving cavity and is in threaded fit with the screw 31, a guiding mechanism for guiding the axial movement of the screw 31 is arranged in the receiving groove, a limit table 426 is formed at the joint of the first receiving section 423 and the second receiving section 424 and is matched with the screw head 433, and the screw head 433 moves to the limit table 426 to drive the piston 42 to move together.
As a preferred mode of the present utility model, the guide mechanism includes a plurality of guide ribs 434 disposed on the screw 31 and a guide ring 46 for guiding the screw 31 to move axially, in the embodiment, the plurality of guide ribs 434 are disposed along the circumferential direction of the screw 31, the guide ribs 434 extend along the axial direction of the screw 31, the guide ring 46 is mounted in the receiving groove, specifically, in the first receiving section 423, and the guide ring 46 is sleeved outside the screw 31 corresponding to the guide ribs 434.
In a preferred embodiment of the present utility model, sealing rings 48 are provided at both ends of the oil chamber 47 in the cylinder 41.
As a preferred mode of the present utility model, the elastic mechanism 44 is a spring or a disc spring, and the spring or the disc spring is sleeved in the adjusting bolt 43.
In a preferred embodiment of the present utility model, there are two brakes 40, and the two brakes 40 are provided separately on both sides of the brake disc 30.
In a preferred embodiment of the present utility model, the mounting frame 20 is provided with a guide rod, and the brake pad 50 is slidably sleeved on the guide rod 51, and in an embodiment, the guide rods 51 are multiple and are used for guiding the brake pad 50 to move along a predetermined direction.
The product form of the present utility model is not limited to the embodiments described herein, and any suitable variations or modifications of the similar concept should be regarded as not departing from the scope of the utility model.
Claims (10)
1. Differential mechanism disc parking braking assembly, including the transaxle, set up differential mechanism in the transaxle and be used for providing the transmission shaft of power to differential mechanism, transmission shaft rotatably installs on the transaxle, its characterized in that: the brake disc is arranged on the transmission shaft and rotates along with the rotation shaft, a mounting frame is arranged on the drive axle, a brake disc is arranged on the mounting frame corresponding to the brake disc, a brake used for pushing the brake disc to the brake disc is further arranged on the mounting frame, the brake comprises a cylinder body and a piston capable of moving in the cylinder body, the two ends of the piston along the axial direction are arranged to be a first end and a second end, the first end corresponds to the brake disc, the brake disc is further provided with an elastic mechanism used for pushing the brake disc to the brake disc, the elastic mechanism corresponds to the second end of the piston, an oil cavity used for enabling the piston to axially move in the cylinder body and pushing the elastic mechanism is arranged in the cylinder body, and an oil inlet and an oil outlet communicated with the oil cavity are formed in the cylinder body.
2. A differential disc parking brake assembly as defined in claim 1, wherein: an end cover is arranged at one end of the cylinder body, and the elastic mechanism is arranged between the end cover and the second end of the piston.
3. A differential disc parking brake assembly as defined in claim 2, wherein: the end cover is locked on the cylinder body through a screw.
4. A differential disc parking brake assembly as defined in claim 3, wherein: the second end of piston is equipped with the storage tank that extends to first end, and storage tank has first storage section, second storage section, third storage section, and first storage section, second storage section and third storage section follow in proper order first end to the second end is arranged, still includes follows the end cover stretches into the adjusting bolt of storage tank, adjusting bolt includes the screw rod, sets up the screw rod head in the one end of screw rod and sets up the nut at the other end of screw rod, and the screw rod head is located first storage section, and the nut is located storage tank is outer and with screw rod screw thread fit, be equipped with the guiding mechanism that is used for guiding screw rod axial displacement in the storage tank, first storage section and the junction of second storage section form with screw rod head cooperation spacing platform.
5. A differential disc parking brake assembly as defined in claim 4, wherein: the guide mechanism comprises a guide rib arranged on the screw rod and a guide ring used for guiding the screw rod to axially move, the guide ring is arranged in the storage groove, and the guide ring is sleeved outside the screw rod corresponding to the guide rib.
6. The differential disc parking brake assembly of claim 5, wherein: sealing rings are arranged at two ends of the oil liquid chamber in the cylinder body.
7. A differential disc parking brake assembly as defined in claim 1, wherein: the elastic mechanism is a spring or a disc spring.
8. A differential disc parking brake assembly as defined in claim 1, wherein: the number of the brakes is two, and the two brakes are respectively arranged at two sides of the brake disc.
9. The differential disc parking brake assembly of claim 8, wherein: the mounting frame is provided with a guide rod, and the brake block is slidably sleeved on the guide rod.
10. The differential disc parking brake assembly of claim 9, wherein: the mounting frame is locked on the driving axle through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320117356.8U CN220060421U (en) | 2023-01-13 | 2023-01-13 | Differential disc type parking brake assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320117356.8U CN220060421U (en) | 2023-01-13 | 2023-01-13 | Differential disc type parking brake assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220060421U true CN220060421U (en) | 2023-11-21 |
Family
ID=88785709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320117356.8U Active CN220060421U (en) | 2023-01-13 | 2023-01-13 | Differential disc type parking brake assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220060421U (en) |
-
2023
- 2023-01-13 CN CN202320117356.8U patent/CN220060421U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |