CN210290550U - Brake caliper, brake device and vehicle - Google Patents
Brake caliper, brake device and vehicle Download PDFInfo
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- CN210290550U CN210290550U CN201920894801.5U CN201920894801U CN210290550U CN 210290550 U CN210290550 U CN 210290550U CN 201920894801 U CN201920894801 U CN 201920894801U CN 210290550 U CN210290550 U CN 210290550U
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- 238000005452 bending Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model relates to a brake caliper, arresting gear and vehicle, this brake caliper includes pincers body support, the slip pincers body, the uide pin, brake block and force cell sensor, the brake block is including relative and first brake block and the second brake block of interval setting, first brake block movably sets up in pincers body support, the second brake block is fixed to be set up in the slip pincers body, the uide pin is with pincers body support fixed connection, the slip pincers body slidable sets up in the uide pin to drive the second brake block and be close to first brake block, force cell sensor corresponds in order to be used for detecting the atress of uide pin with the uide pin. The force sensor is arranged to detect the stress condition of the guide pin and feed the stress condition back to the vehicle control system, so that the stress condition of the guide pin can be monitored in real time, and then problems can be found in time before the guide pin is damaged or broken due to overlarge stress, so that drivers and passengers can adopt counter measures in advance, and the potential safety hazard that the guide pin cannot be braked due to damage or breakage is eliminated.
Description
Technical Field
The disclosure relates to the technical field of vehicle braking, in particular to a brake caliper, a brake device and a vehicle.
Background
Brake safety is one of the most important properties of a vehicle. More and more sensors are used in brake systems to monitor the performance of various components of the brake system in real time and provide various information of the brake system to the entire vehicle. Common sensors applied to a braking system include a wheel speed sensor, a friction plate abrasion sensor, a steering angle sensor, a yaw rate sensor and the like. However, the brake caliper in the prior art still has the problem of brake reliability, and has the potential safety hazard of incapability of braking.
SUMMERY OF THE UTILITY MODEL
The purpose of this disclosure is to provide a brake caliper, the reliability and the security of this brake caliper braking are high.
In order to achieve the above object, the present disclosure provides a brake caliper, including a caliper support, a sliding caliper, a guide pin, a brake pad and a force sensor, the brake pad includes a first brake pad and a second brake pad that are disposed oppositely and at an interval, the first brake pad is movably disposed on the caliper support, the second brake pad is fixedly disposed on the sliding caliper, the guide pin is fixedly connected to the caliper support, the sliding caliper is slidably disposed on the guide pin to drive the second brake pad to be close to the first brake pad, and the force sensor corresponds to the guide pin to detect a stress condition of the guide pin.
Optionally, the guide pin includes a connecting section and a guide section that are connected to each other and have a step structure, the step structure includes a step portion, the connecting section is fixedly connected to the caliper body bracket, the sliding caliper body is slidably disposed in the guide section, and the force sensor is configured to detect a force applied to the step portion of the guide pin.
Optionally, the load cell is a strain gauge sensor, and the strain gauge sensor is arranged along the axial direction of the guide pin, and one part of the strain gauge sensor is located in the connecting section, and the other part of the strain gauge sensor is located in the guide section.
Optionally, the load cell is a strain gauge sensor, and the strain gauge sensor is embedded inside the guide pin.
Optionally, the strain gauge sensor is integrally formed with the guide pin.
Optionally, the strain gauge sensor further comprises a first connection line for communicating with a vehicle control system, the first connection line being located inside the guide pin and arranged along the axis of the guide pin and passing out of the end of the guide pin.
Optionally, the outer end face of the guide pin is provided with a blind mounting hole extending in the axial direction, the load cell is arranged on the inner wall of the blind mounting hole, and the load cell further comprises a first connecting wire for communicating with a vehicle control system.
Optionally, brake caliper still includes brake block wear sensor that is used for detecting the brake block loss and the fast sensor of wheel speed that is used for detecting the wheel speed, brake block wear sensor be connected with be used for with the second connecting wire of vehicle control system communication, the fast sensor of wheel be connected with be used for with the third connecting wire of vehicle control system communication, first connecting wire the second connecting wire with a connecting bus is assembled to the third connecting wire.
According to another aspect of the present disclosure, a brake device is provided, including a brake disc and the brake caliper described above, at least a portion of the brake disc being disposed between the first brake pad and the second brake pad.
According to still another aspect of the present disclosure, a vehicle is provided, which includes a wheel and the braking device described above, and the brake disc brakes with the wheel.
Through above technical scheme, set up force cell sensor and detect the atress of uide pin to can feed back the testing result to vehicle control system, thereby can real-time supervision uide pin atress condition, and then can in time discover the problem before the damage or the fracture of uide pin because of the atress is too big, so that driver and crew adopt the counter-measure in advance, eliminate the potential safety hazard that the vehicle can't brake at the in-process of traveling that leads to because the uide pin damages or fracture. The reliability and the safety of vehicle braking can be improved.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a schematic perspective view of a brake caliper according to an embodiment of the present disclosure;
FIG. 2 is a schematic perspective view of a caliper bracket according to an embodiment of the present disclosure;
FIG. 3 is a perspective view of a sliding jaw body according to an embodiment of the present disclosure;
FIG. 4 is a schematic front view of a guide pin of one embodiment of the present disclosure showing a load cell;
FIG. 5 is a schematic diagram of the wiring of one embodiment of the braking device of the present disclosure;
fig. 6 is a schematic perspective view of a brake device according to an embodiment of the present disclosure.
Description of the reference numerals
100-brake caliper; 10-a forceps body support; 20-sliding clamp body; 30-a guide pin; 31-a connecting segment; 32-a guide section; 33-a step portion; 41-a second brake pad; 50-a force transducer; 51-a first connection line; 60-brake pad wear sensor; 61-a second connecting line; 70-wheel speed sensor; 71-a third connecting line; 80-connection bus; 200-a braking device; 201-brake disk.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, the use of directional terms such as "inner and outer" refers to the inner and outer of the profile of the relevant component, unless stated to the contrary. In addition, the terms "first", "second", and the like used in the embodiments of the present disclosure are for distinguishing one element from another, and have no order or importance.
In the related art, the brake pad is used as a wearing part, which affects the braking reliability and safety of the brake caliper and becomes a key focus of braking safety, and therefore, a friction plate wear sensor is usually arranged to detect the loss of the brake pad so as to avoid the risk of incapability of braking due to damage of the brake pad.
However, the inventor of the present application has found that the guide pin 30 in the brake caliper also affects the braking reliability and safety of the brake caliper 100, and specifically, when a vehicle brakes, the brake pad and the brake disc 201 generate severe friction, and a strong friction force is generated, and the strong friction force is transmitted to the guide pin 30, and a large bending stress and shearing stress are generated on the guide pin 30, which may cause the guide pin 30 to bend and break, thereby affecting the braking reliability and safety of the brake caliper.
As shown in fig. 1-6, according to one aspect of the present disclosure, a brake caliper is provided. The brake caliper 100 includes a caliper body bracket 10, a sliding caliper body 20, a guide pin 30, a brake pad, and a load cell 50. The brake block comprises a first brake block (not shown in the figure) and a second brake block 41 which are oppositely arranged at an interval, the first brake block is movably arranged on the caliper body bracket 10 along the axial direction of the wheel, the second brake block 41 is fixedly arranged on the sliding caliper body 20, the guide pin 30 is fixedly connected with the caliper body bracket 10, the sliding caliper body 20 is slidably arranged on the guide pin 30 along the axial direction of the wheel so as to drive the second brake block 41 to be close to the first brake block, the force measuring sensor 50 corresponds to the guide pin 30 and is used for detecting the stress condition of the guide pin 30, and the detected result can be fed back to the vehicle control system.
In the brake caliper 100 provided by the present disclosure, the force sensor 50 is arranged to detect the stress of the guide pin 30, and the detection result is fed back to the vehicle control system, so that the stress condition of the guide pin 30 can be monitored in real time, and problems can be found in time before the guide pin 30 is damaged or broken due to excessive stress, so that a driver and passengers can adopt countermeasures in advance, and the potential safety hazard that the vehicle cannot be braked in the driving process due to the damage or breakage of the guide pin 30 is eliminated. The reliability and the safety of vehicle braking can be improved.
Wherein a yield strength test can be performed on the guide pin 30 to determine a strength value for the guide pin 30, and thereby determine a damage threshold for the guide pin 30, the damage threshold being less than the strength value for the guide pin 30, and a warning can be issued to the vehicle control system when the stress value detected by the load cell 50 is greater than the damage threshold. And setting a safety protection mode for the whole vehicle, such as a protection mode of limiting the maximum vehicle speed or prohibiting the vehicle from being restarted and the like, and reminding a driver to replace the guide pin 30.
In one embodiment of the present disclosure, as shown in fig. 4, the guide pin 30 includes a connection section 31 and a guide section 32 connected to each other and having a stepped structure, and the stepped structure includes a stepped portion 33. The connecting section 31 is fixedly connected with the forceps body support 10, and the sliding forceps body 20 is slidably arranged on the guiding section 32. The load cell 50 is used to detect the force applied to the step 33 of the guide pin 30.
The connecting section 31 is arranged to facilitate the assembly between the guide pin 30 and the caliper body support 10, and the production and manufacturing cost is reduced. Since the step portion 33 is a position where stress concentration is likely to occur, the sensor provided therein contributes to detecting the maximum stress value of the guide pin 30. By comparing with the damage threshold of the guide pin 30, it can be accurately determined whether the guide pin 30 is at risk of damage or breakage under the current applied force.
Alternatively, in one embodiment, the connecting section 31 is provided with an external thread section, and the connecting section 31 is screwed with the forceps body support 10, so that the installation is convenient and a reliable connection can be formed. In other embodiments, the connecting segment 31 and the forceps body support 10 may be fixedly connected by welding or the like.
It should be noted that the present disclosure does not limit the specific structure and shape of the guide pin 30, and in other alternative embodiments, the guide pin 30 may not be designed to have a step structure, and may have a cylindrical shape, for example, that the connecting section 31 and the guide section 32 have the same diameter.
In the present disclosure, the load cell 50 may be implemented by selecting an appropriate sensor according to design requirements, as long as the load cell can measure the stress of the guide pin 30, which is not limited by the present disclosure. In one embodiment of the present disclosure, the load cell 50 is a strain gauge sensor, and as shown in fig. 4, the strain gauge sensor is disposed along the axial direction of the guide pin 30, and a part of the strain gauge sensor is located on the connecting section 31 and another part of the strain gauge sensor is located on the guide section 32, that is, a part of the strain gauge sensor is located on the connecting section 31 and another part of the strain gauge sensor is located on the guide section 32.
By arranging the strain gauge sensors in the axial direction to follow the deformation of the guide pin 30, the maximum bending amount in the length direction of the guide pin 30 due to bending stress and shearing stress can be sensed, and the stress magnitude of the step portion 33 most likely to cause stress concentration can be detected, so that the damage or fracture of the guide pin 30 can be detected timely and effectively.
In the present disclosure, the strain gauge sensor may be one of a conventional resistance strain gauge and a strain gauge pressure sensor, and the structure and principle thereof are well known to those skilled in the art and will not be described herein.
In the present disclosure, the strain gauge sensor may be mounted at any suitable position on the guide pin 30 as required by the design, and the present disclosure is not limited thereto. In one embodiment, the load cell 50 is a strain gauge sensor embedded in the guide pin 30, so that the force applied to the guide pin 30 can be detected without affecting the guidance of the slide caliper body 20 by the guide pin 30.
In the present disclosure, the strain gauge sensor may be embedded inside the guide pin in any suitable manner, which is not limited by the present disclosure. For example, a mounting groove for mounting the strain gauge sensor may be opened on the surface of the guide pin 30, and then the strain gauge sensor may be firmly attached to the mounting groove with an adhesive. In one embodiment of the present disclosure, the strain gauge sensor is integrally formed with the guide pin 30.
In actual production, a heat-resistant strain gauge sensor may be selected, and when the guide pin 30 is cast, the strain gauge sensor may be set in advance in a mold of the guide pin 30, so that the strain gauge sensor can be embedded in the guide pin 30 and integrally molded with the guide pin 30, whereby the guide pin 30 can be mounted, and the influence on the strength of the guide pin 30 can be minimized.
In one embodiment of the present disclosure, as shown in fig. 5, the strain gauge sensor further includes a first connection line 51 for communicating with the vehicle control system, the first connection line 51 being located inside the guide pin 30 and arranged along the axis of the guide pin 30 and penetrating out of the end of the guide pin 30. By arranging the first connecting wire 51 along the axis, the guide pin 30 is passed out from the end of the guide pin 30, so that the outer peripheral surface of the guide pin 30 is not damaged, the guiding of the slide caliper body 20 by the guide pin 30 is not affected, and the influence on the strength of the guide pin 30 is also minimized.
In another embodiment of the present disclosure, the outer end face of the guide pin 30 has a blind mounting hole extending in the axial direction, and the load cell 50 is disposed on the inner wall of the blind mounting hole. Specifically, the blind mounting hole is provided in the end surface of the guide pin 30 at the end remote from the caliper body bracket 10, and the load cell 50 can be firmly adhered to the inner wall of the blind mounting hole with an adhesive. Therefore, the force measuring sensor 50 can be conveniently installed, stress concentration cannot be easily generated when the guide pin 30 is bent, and the strength of the guide pin 30 is ensured.
In this alternative embodiment, the load cell 50 may be a strain gauge sensor and may include a first connecting wire 51 for communicating with the vehicle control system as in the previous embodiment, and as such, this first connecting wire 51 is located inside the guide pin 30 and is arranged along the axis of the guide pin 30 and passes out of the end of the guide pin 30.
In the present disclosure, as shown in fig. 5, the brake caliper 100 further includes a brake pad wear sensor 60 for detecting a loss of a brake pad and a wheel speed sensor 70 for detecting a rotational speed of a wheel. The brake pad wear sensor 60 is connected to a second connection line 61 for communicating with a vehicle control system, and the wheel speed sensor 70 is connected to a third connection line 71 for communicating with the vehicle control system. The first connection line 51, the second connection line 61, and the third connection line 71 are combined into one connection bus 80. The brake pad wear sensor 60 is provided at the brake pad, and the wheel speed sensor 70 is provided at the wheel. The connection bus 80 communicates with the vehicle control system. The three sensors are arranged into a line, and the line trend of the connection bus 80 is arranged according to the arrangement of the whole vehicle, so that the wiring harness arrangement of the whole vehicle is simpler, the phenomena of motion interference and the like can be avoided, the complex arrangement of a plurality of sensors can be avoided, and certain arrangement cost is saved. Specifically, the connection bus 80 may communicate with the vehicle control system by connecting to an ESP (Electronic stability program Electronic body stability system) or other CAN (Controller Area Network) bus.
According to another aspect of the present disclosure, there is also provided a brake apparatus 200, as shown in fig. 6, the brake apparatus 200 includes a brake disc 201 and the above-mentioned brake caliper 100, at least a portion of the brake disc 201 is disposed between the first and second brake pads 41. The brake caliper 100 may further include a piston cylinder that pushes the first brake pad closer to the second brake pad 41, thereby tightening the brake disc 201. Because the load cell 50 is arranged to detect the stress of the guide pin 30, the vehicle control system can timely acquire the state of the guide pin 30, and the braking safety of the braking device 200 is improved.
According to another aspect of the present disclosure, there is also provided a vehicle including a wheel and the braking device 200 described above, wherein the brake disc 201 may be disposed coaxially with the wheel and fixedly connected to a hub of the wheel. Due to the adoption of the braking device 200, the potential safety hazard that braking cannot be performed in the running process due to the breakage of the guide pin 30 is avoided, and the safety of the vehicle is improved.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. The brake caliper is characterized by comprising a caliper body support (10), a sliding caliper body (20), a guide pin (30), a brake pad and a force measuring sensor (50), wherein the brake pad comprises a first brake pad and a second brake pad (41) which are arranged oppositely and at an interval, the first brake pad is movably arranged on the caliper body support (10), the second brake pad (41) is fixedly arranged on the sliding caliper body (20), the guide pin (30) is fixedly connected with the caliper body support (10), the sliding caliper body (20) is slidably arranged on the guide pin (30) so as to drive the second brake pad (41) to be close to the first brake pad, and the force measuring sensor (50) corresponds to the guide pin (30) and is used for detecting the stress condition of the guide pin (30).
2. Brake calliper according to claim 1, wherein the guide pin (30) comprises a connecting section (31) and a guide section (32) connected to each other and having a step structure, the step structure comprising a step (33), the connecting section (31) being fixedly connected to the calliper body support (10), the sliding calliper body (20) being slidably arranged in the guide section (32), the load cell (50) being adapted to detect a force applied to the step (33) of the guide pin (30).
3. Brake calliper according to claim 2, wherein the load cell (50) is a strain gauge sensor arranged in the axial direction of the guide pin (30) and having one part at the connection section (31) and another part at the guide section (32).
4. Brake calliper according to any of claims 1-3, wherein the load cell (50) is a strain gauge sensor embedded inside the guide pin (30).
5. Brake calliper according to claim 4, wherein the strain gauge sensor is integrally formed with the guide pin (30).
6. Brake calliper according to claim 5, wherein the strain sensor further comprises a first connection line (51) for communicating with a vehicle control system, the first connection line (51) being located inside the guide pin (30) and being arranged along the axis of the guide pin (30) and emerging from the end of the guide pin (30).
7. Brake calliper according to claim 1, wherein the outer end face of the guide pin (30) has an axially extending blind mounting hole, the load cell (50) being arranged on the inner wall of the blind mounting hole, the load cell (50) further comprising a first connection line (51) for communicating with a vehicle control system.
8. Brake calliper according to claim 6 or 7, wherein the brake calliper (100) further comprises a brake pad wear sensor (60) for detecting brake pad wear and a wheel speed sensor (70) for detecting wheel speed, the brake pad wear sensor (60) being connected with a second connection line (61) for communicating with the vehicle control system, the wheel speed sensor (70) being connected with a third connection line (71) for communicating with the vehicle control system, the first connection line (51), the second connection line (61) and the third connection line (71) summing up to one connection bus (80).
9. A braking device, characterized by comprising a brake disc (201) and a brake caliper (100) according to any one of claims 1 to 8, at least a portion of said brake disc (201) being arranged between said first and second brake pads (41).
10. A vehicle, characterized by comprising a wheel and a braking device (200) according to claim 9, said brake disc (201) being used for braking of said wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920894801.5U CN210290550U (en) | 2019-06-13 | 2019-06-13 | Brake caliper, brake device and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920894801.5U CN210290550U (en) | 2019-06-13 | 2019-06-13 | Brake caliper, brake device and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN210290550U true CN210290550U (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920894801.5U Active CN210290550U (en) | 2019-06-13 | 2019-06-13 | Brake caliper, brake device and vehicle |
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| CN (1) | CN210290550U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963469A (en) * | 2021-04-20 | 2021-06-15 | 徐州大恒测控技术有限公司 | Caliper disc brake for monitoring positive braking pressure and monitoring method thereof |
-
2019
- 2019-06-13 CN CN201920894801.5U patent/CN210290550U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963469A (en) * | 2021-04-20 | 2021-06-15 | 徐州大恒测控技术有限公司 | Caliper disc brake for monitoring positive braking pressure and monitoring method thereof |
| CN112963469B (en) * | 2021-04-20 | 2024-05-28 | 平顶山天安煤业股份有限公司五矿 | Caliper disc brake for monitoring braking positive pressure and monitoring method thereof |
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Effective date of registration: 20200811 Address after: 101300 Beijing Shunyi District Shuanghe Street 99 hospital 1 buildings five floors 101 inside A5-061 Patentee after: BAIC MOTOR Co.,Ltd. Address before: 101300 Beijing Shunyi District Zhongguancun science and Technology Park, Shunyi garden, South Street, South Street, No. 10, 3 building 312 Patentee before: BAIC MB-TECH DEVELOPMENT CENTER Co.,Ltd. |