CN114941669A - Method and structure for reducing drag torque of brake caliper assembly - Google Patents
Method and structure for reducing drag torque of brake caliper assembly Download PDFInfo
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- CN114941669A CN114941669A CN202210444030.6A CN202210444030A CN114941669A CN 114941669 A CN114941669 A CN 114941669A CN 202210444030 A CN202210444030 A CN 202210444030A CN 114941669 A CN114941669 A CN 114941669A
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- brake
- piston
- drag torque
- caliper assembly
- guide pin
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 238000007906 compression Methods 0.000 claims description 18
- 230000006835 compression Effects 0.000 claims description 17
- 230000033001 locomotion Effects 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 210000000080 chela (arthropods) Anatomy 0.000 description 11
- 230000006872 improvement Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 235000014676 Phragmites communis Nutrition 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 241001247986 Calotropis procera Species 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
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- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/04—Attachment of linings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a method for reducing drag torque of a brake caliper assembly and a structure thereof. The elastic mechanism is arranged on the brake pad to elastically push the brake pad to reset, the reset mechanism is arranged between the caliper body and the support to push the brake pad to reset, and the caliper body and the piston are actuated to actively reset by applying direct and indirect acting force to act on the caliper body and the piston, so that dragging torque is reduced, and energy consumption of a vehicle is reduced.
Description
Technical Field
The invention relates to the technical field of automobile brake calipers, in particular to a method and a structure for reducing drag torque of a brake caliper assembly.
Background
The drag torque generated by the brake caliper assembly in the process of service braking or parking braking is the resistance torque which hinders the vehicle from running, and the energy consumption utilization rate of the vehicle is directly influenced. The extent to which the brake pads are disengaged from the brake disc after the braking action is complete will directly affect the appearance of the drag torque. Patent number CN205841570U discloses an auxiliary return structure of a brake pad in a floating brake caliper assembly, which elastically limits the outer brake pad assembly and the inner brake pad assembly by arranging an inner auxiliary return reed and an outer auxiliary return reed, the inner brake pad assembly automatically separates from the brake disc under the action of the inner auxiliary return reed, and the outer brake pad assembly automatically separates from the brake disc under the action of the outer auxiliary return reed, thereby reducing drag torque; the elastic force of the outer piece is mainly used for balancing the acting force acting on the inner piece, the acting force of the structure does not provide effective active support for the separation of the outer brake piece from the brake disc 8, the active reset function of the caliper body is omitted, and the separation of the outer brake piece from the brake disc is not facilitated. Patent No. CN111594560A discloses a EPB piston drives clutch shoe return structure, make the piston and clutch shoe fixed together through the jump ring, make the clutch shoe and piston machinery link to each other, thereby the return of piston can the initiative drive the clutch shoe return after parking release, make the clutch shoe possess the function of initiative return, but this structure has lost the piston return ability because the back-off resistance of braking pad, the back-off of braking pad in the other side only provides the space for the pincers body resets, but does not provide effectual drive power to pincers body reset and outer brake piece break away from the brake disc, thereby influence the reduction to the dragging moment, can not be effectual eliminate the dragging moment, therefore it becomes very important to solve this problem.
Disclosure of Invention
The invention aims to provide a method and a structure for reducing drag torque of a brake caliper assembly.
The invention provides a method for reducing drag torque of a brake caliper assembly, which comprises the steps of applying direct and indirect acting force to act on a caliper body and a piston to actuate the caliper body and the piston to reset actively, wherein the acting force direction acting on the caliper body is opposite to the motion direction when an outer brake pad clamps a brake disc during braking; the acting force prompts the piston to retreat to provide space for the inner brake pad and the outer brake pad to separate from the brake disc, so that the inner brake disc and the outer brake pad are separated, and the dragging torque is effectively reduced.
The invention also provides a structure for reducing the dragging torque of the brake caliper assembly, which comprises a bracket, a piston and a caliper body, wherein the bracket is arranged at two sides of the piston; the brake piece is provided with an elastic mechanism, and a reset mechanism is arranged between the clamp body and the bracket.
The further improvement lies in that: the brake pad includes an inner brake pad and an outer brake pad; the inner brake block and the outer brake block are arranged between the brackets in parallel, and the inner brake block is connected with the piston; the elastic mechanism is arranged between the upper sides of the inner brake block and the outer brake block.
The further improvement lies in that: the elastic mechanism comprises a splayed spring; the splayed springs are arranged in a splayed structure, the two splayed springs are arranged in a bilateral symmetry mode, and two ends of each splayed spring are connected to the inner brake piece and the outer brake piece respectively.
The further improvement lies in that: and spring pieces are arranged at two ends of the outer side of the outer brake piece.
The further improvement lies in that: the reset mechanism comprises a guide pin, a guide hole and a compression spring; the guide hole is formed in the support, the compression spring is installed in the guide hole, the guide pin is movably inserted into the guide hole, the inner end of the guide pin is connected with the outer end of the compression spring, and the outer end of the guide pin is connected with the clamp body.
The further improvement lies in that: the outer end of the guide pin is provided with a rubber bushing, and an elastic folding frame is arranged in the rubber bushing.
The further improvement lies in that: the front end of the clamp body is provided with an elastic strip, and the outer end of the elastic strip is fixed on the bracket.
The invention has the beneficial effects that: 1. according to the invention, direct or indirect acting force is applied to the caliper body and the piston, and the acting force is applied to promote the piston to retreat to provide space for the inner brake pad and the outer brake pad to separate from the brake disc, so that the inner brake pad and the outer brake disc are separated, and the dragging torque is effectively reduced.
2. According to the invention, the elastic mechanism and the reset mechanism are arranged, so that the power for returning the caliper body provided by the existing single structure is replaced, the power provided by the single structure cannot effectively promote the caliper body to return, and the dragging torque of the brake caliper cannot be effectively reduced; this application is through setting up elastic mechanism and canceling release mechanical system, provides the drive power that backs off to the pincers body from a plurality of points, makes the pincers body initiative reset to effectual reduction drags the moment, promotes whole car energy consumption utilization ratio.
3. The splayed springs are arranged on the upper sides of the inner brake block and the outer brake block, and respectively act on the inner brake block and the outer brake block through the splayed springs, so that the inner brake block is separated from a brake disc through acting force acting on the inner brake block, and meanwhile, the acting force is transmitted to the piston to promote the piston to actively retract; the outer brake pad is provided with a spring piece, the spring piece is deformed to store energy through the position change of the brake pad relative to the bracket, the stored energy is transmitted to the caliper body between the brake pads after the brake is released, the caliper body is actively reset through the transmission of indirect force, and the outer brake pad is promoted to be separated from the brake disc, so that the dragging moment of the brake caliper is reduced.
4. According to the invention, the guide hole is formed in the bracket, the guide pin is inserted into the guide hole, the compression spring is arranged in the guide hole, the compression spring is used for stretching and storing energy to generate elastic force, and the elastic force is transmitted to the clamp body through the guide pin by virtue of the elastic acting force of the compression spring so as to actuate the clamp body to carry out active reset; and set up the rubber bush on the guide pin, set up the elasticity folding leg in the rubber bush, the elasticity folding leg carries out elastic elongation or compression along with the removal of guide pin, and the effort is transmitted to the pincers body through the guide pin, and the reaction force acts on the support, through direct effort promotion pincers body initiative backspacing to reduce the dragging moment of the pincers body.
5. According to the invention, the elastic strip is arranged at the groove of the hook claw of the caliper body, the acting force of the elastic strip acts on the caliper body and the bracket respectively, and after the brake is released, the active resetting of the caliper body is promoted by the acting force, so that the dragging torque of the caliper body is reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the elastic structure.
FIG. 3 is a top view of the brake caliper
Fig. 4 is a schematic structural view of the resetting mechanism.
Fig. 5 is a schematic view of the structure of the elastic folding leg.
Fig. 6 is a schematic view of a spring bar mounting structure.
Fig. 7 is a schematic view of a spring bar structure.
Wherein: 1-bracket, 2-piston, 3-clamp body, 4-inner brake block, 5-outer brake block, 6-splayed spring, 7-spring piece, 8-guide pin, 9-guide hole, 10-compression spring, 11-rubber bushing, 12-elastic folding frame and 13-elastic strip.
Detailed Description
For the purpose of enhancing understanding of the present invention, the present invention will be further described in detail with reference to the following examples, which are provided for illustration only and are not to be construed as limiting the scope of the present invention.
The embodiment provides a method for reducing drag torque of a brake caliper assembly, which comprises the steps of applying direct and indirect acting force to act on a caliper body 3 and a piston 2, and actuating the caliper body 3 and the piston 2 to be actively reset, wherein the acting force direction acting on the caliper body 3 is opposite to the movement direction when an outer brake pad 5 clamps a brake disc during braking; the piston 2 is prompted to retreat to provide space for the inner brake pad 4 and the outer brake pad 5 to separate from the brake disc through the application of acting force, so that the inner brake pad 4 and the outer brake pad 5 are separated, and the dragging torque is effectively reduced.
As shown in fig. 1-7, the embodiment further provides a structure for reducing the drag torque of a brake caliper assembly, which includes a bracket 1, a piston 2, and a caliper body 3, where the bracket 1 is disposed on both sides of the piston 2, the caliper body 3 is connected to the piston 2, and a brake pad is disposed in the middle of the bracket 1, and the brake pad includes an inner brake pad 4 and an outer brake pad 5; the inner brake block 4 and the outer brake block 5 are arranged between the brackets 1 in parallel, and the inner brake block 4 is connected with the piston 2; the clamp body 3 is arranged on the upper side of the brake pad; the brake piece is provided with an elastic mechanism, the elastic mechanism is arranged between the upper sides of the inner brake piece 4 and the outer brake piece 5, and the elastic mechanism comprises a splayed spring 6; the splayed springs 6 are arranged in a splayed structure, two splayed springs 6 are symmetrically arranged left and right, two ends of each splayed spring 6 are respectively connected to the inner brake disc 4 and the outer brake disc 5, the splayed springs 6 respectively act on the inner brake disc 4 and the outer brake disc 5, the elastic force acting on the inner brake disc 4 drives the piston 2 to further retreat inwards, and a space is provided for the retreat of the inner brake disc 4, the reset of the caliper body 3 and the separation of the outer brake disc 5 from the brake disc; the two ends of the outer side of the outer brake piece 5 are provided with spring pieces 7, the spring pieces 7 act on the outer brake piece 5 through the elasticity of the spring pieces 7, so that the caliper body 3 is actuated to reset actively, and the outer brake piece 3 and the caliper body 3 are synchronously far away from a brake disc.
A reset mechanism is arranged between the clamp body 3 and the bracket 1; the reset mechanism comprises a guide pin 8, a guide hole 9 and a compression spring 10; the guide hole 9 is arranged on the support 1, the compression spring 10 is arranged in the guide hole 9, the guide pin 8 is movably arranged in the guide hole 9 in an inserted mode, the inner end of the guide pin 8 is connected with the outer end of the compression spring 10, the outer end of the guide pin 8 is connected with the caliper body 3, the guide pin 8 moves along with the caliper body 3 and enters and exits the guide hole 9, the compression spring 10 provides outward thrust for the guide pin 8, the caliper body 3 provides backspacing power, backspacing resistance of the caliper body 1 is reduced, and backspacing effect is improved. The outer end of the guide pin 8 is sleeved with a rubber bushing 11, an elastic folding frame 12 is arranged in the rubber bushing 11, the elastic folding frame 12 enables the space between the guide pin 8 and the support 1 to be buffered and pushed, and meanwhile, the guide pin 8 provides power for the clamp body 3, so that the clamp body 3 automatically resets.
An elastic strip 13 is arranged at a slot at the front end of the caliper body 3, the outer end of the elastic strip 13 is fixed on the support 1, the acting force of the elastic strip 13 acts on the caliper body 3 and the support 1 respectively, and the caliper body 1 is actuated to actively reset through the elasticity of the elastic strip 13 after the brake is released; the section of the elastic strip 13 can be circular or non-circular, and when a non-circular structure is adopted, riveting and pressing processes can be adopted for installation.
In the actual use process, the spring piece 7 is deformed to store energy through the position change of the brake pad relative to the bracket 1, after the brake is released, the stored energy acts on the brake pad and is indirectly transmitted to the caliper body 3 through the brake pad, so that the caliper body 3 is reset, the outer brake pad 5 is simultaneously promoted to be separated from the brake disc, the inner brake pad 4 and the outer brake pad 5 act through the splayed spring 6, the acting force acting on the inner brake pad 4 promotes the inner brake pad 4 to be separated from the brake disc, and the acting force is simultaneously transmitted to the piston 2, so that the piston 2 is actively retracted. The guide pin 8 is inserted into a guide hole 9 on the bracket 1, elastic force is generated by stretching and storing energy through a compression spring 10 in the guide hole 9, and when braking is released, the guide pin 8 transmits acting force to the caliper body 3 under the action of the elastic force of the compression spring 10, so that the caliper body 3 is actively reset through the action of force; the elastic folding frame 12 on the guide pin 8 stores energy in an elastic extension or compression mode, and after the brake is released, the stored energy force is transmitted to the clamp body 3 through the guide pin 8, so that the clamp body 3 is actively reset. Increase elastic strip 13 between 3 front ends of pincers bodies and support 1, the effort of elastic strip 13 acts on pincers bodies 3 and support 1 respectively, after the braking release, through the elastic force of elastic strip 13, makes pincers bodies 3 initiatively reset, reduces the dragging moment of pincers bodies 3, promotes whole car energy consumption utilization ratio.
Claims (8)
1. A method of reducing the drag torque of a brake caliper assembly, comprising: the method comprises the following steps: the direct and indirect acting force is exerted on the pliers body and the piston to actuate the pliers body and the piston to reset actively; the direction of acting force acting on the caliper body is opposite to the movement direction when the outer brake pad clamps the brake disc during braking.
2. The structure for realizing the method for reducing the dragging torque of the brake caliper assembly according to claim 1 comprises a bracket (1), a piston (2) and a caliper body (3), wherein the bracket (1) is arranged at two sides of the piston (2), the caliper body (3) is connected to the piston (2), a brake pad is arranged in the middle of the bracket (1), the inner side of the brake pad is connected with the piston (2), and the caliper body (3) is arranged at the upper side of the brake pad; the method is characterized in that: the brake block is provided with an elastic mechanism, and a reset mechanism is arranged between the clamp body (3) and the bracket (1).
3. A structure for reducing drag torque in a brake caliper assembly according to claim 2, wherein: the brake block comprises an inner brake block (4) and an outer brake block (5); the inner brake block (4) and the outer brake block (5) are arranged between the brackets (1) in parallel, and the inner brake block (4) is connected with the piston (2); the elastic mechanism is arranged between the upper sides of the inner brake block (4) and the outer brake block (5).
4. A structure for reducing drag torque in a brake caliper assembly according to claim 2, wherein: the elastic mechanism comprises a splayed spring (6); splayed spring (6) are splayed structural arrangement, splayed spring (6) are equipped with two and bilateral symmetry and set up, and splayed spring (6) both ends are connected respectively on interior braking piece (4) and outer braking piece (5).
5. A structure for reducing drag torque in a brake caliper assembly according to claim 3, wherein: spring pieces (7) are arranged at the two ends of the outer side of the outer brake piece (5).
6. A structure for reducing drag torque in a brake caliper assembly according to claim 2, wherein: the reset mechanism comprises a guide pin (8), a guide hole (9) and a compression spring (10); the clamp is characterized in that the guide hole (9) is formed in the support (1), the compression spring (10) is installed in the guide hole (9), the guide pin (8) is movably inserted into the guide hole (9), the inner end of the guide pin (8) is connected with the outer end of the compression spring (10), and the outer end of the guide pin (8) is connected with the clamp body (3).
7. A structure for reducing drag torque in a brake caliper assembly according to claim 6, wherein: the outer end of the guide pin (8) is sleeved with a rubber bushing (11), and an elastic folding frame (12) is arranged in the rubber bushing (11).
8. A structure for reducing drag torque in a brake caliper assembly according to claim 2, wherein: an elastic strip (13) is arranged at the front end groove of the clamp body (3), and the outer end of the elastic strip (13) is fixed on the bracket (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210444030.6A CN114941669A (en) | 2022-04-24 | 2022-04-24 | Method and structure for reducing drag torque of brake caliper assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210444030.6A CN114941669A (en) | 2022-04-24 | 2022-04-24 | Method and structure for reducing drag torque of brake caliper assembly |
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| Publication Number | Publication Date |
|---|---|
| CN114941669A true CN114941669A (en) | 2022-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210444030.6A Pending CN114941669A (en) | 2022-04-24 | 2022-04-24 | Method and structure for reducing drag torque of brake caliper assembly |
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| CN (1) | CN114941669A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587803A (en) * | 2016-03-21 | 2016-05-18 | 广州汽车集团股份有限公司 | Brake caliper leaf spring and brake caliper assembly |
| KR20180059082A (en) * | 2016-11-25 | 2018-06-04 | 주식회사 만도 | Monoblock caliper brake |
| CN110630659A (en) * | 2019-07-17 | 2019-12-31 | 浙江亚太机电股份有限公司 | Electronic parking brake caliper special for parking brake |
| CN110778624A (en) * | 2019-08-16 | 2020-02-11 | 浙江零跑科技有限公司 | Low-dragging caliper structure capable of automatically adjusting return amount |
| CN215214472U (en) * | 2021-04-26 | 2021-12-17 | 浙江零跑科技股份有限公司 | Low-drag brake caliper assembly |
| CN215257532U (en) * | 2021-04-29 | 2021-12-21 | 江西五十铃汽车有限公司 | Low-dragging caliper assembly |
| CN215908290U (en) * | 2021-08-06 | 2022-02-25 | 恒大新能源汽车投资控股集团有限公司 | Dragging-reduction return mechanism of brake and brake comprising same |
-
2022
- 2022-04-24 CN CN202210444030.6A patent/CN114941669A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587803A (en) * | 2016-03-21 | 2016-05-18 | 广州汽车集团股份有限公司 | Brake caliper leaf spring and brake caliper assembly |
| KR20180059082A (en) * | 2016-11-25 | 2018-06-04 | 주식회사 만도 | Monoblock caliper brake |
| CN110630659A (en) * | 2019-07-17 | 2019-12-31 | 浙江亚太机电股份有限公司 | Electronic parking brake caliper special for parking brake |
| CN110778624A (en) * | 2019-08-16 | 2020-02-11 | 浙江零跑科技有限公司 | Low-dragging caliper structure capable of automatically adjusting return amount |
| CN215214472U (en) * | 2021-04-26 | 2021-12-17 | 浙江零跑科技股份有限公司 | Low-drag brake caliper assembly |
| CN215257532U (en) * | 2021-04-29 | 2021-12-21 | 江西五十铃汽车有限公司 | Low-dragging caliper assembly |
| CN215908290U (en) * | 2021-08-06 | 2022-02-25 | 恒大新能源汽车投资控股集团有限公司 | Dragging-reduction return mechanism of brake and brake comprising same |
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