Brake disc detection device

Abstract

The utility model relates to a brake disc detection device. The detection device comprises a driving assembly, a torque sensor, a bounce sensor and a control and processing assembly. The drive assembly includes a rotatable rotor. The torque sensor comprises a rotor connecting shaft and a brake disc connecting shaft which are coaxially arranged, and the torque sensor can generate a first electric signal when the rotor connecting shaft and the brake disc connecting shaft relatively rotate around the axes of the rotor connecting shaft and the brake disc connecting shaft. And the jumping sensor can generate a second electric signal when the detection head displaces. The control and processing assembly is electrically connected with the driving assembly, the torque sensor and the jumping sensor, the control and processing assembly is used for controlling starting and stopping of the driving assembly, and the control and processing assembly determines the dragging torque of the brake disc according to a first electric signal input by the torque sensor; and end face runout of the brake disc is determined according to a second electric signal input by the runout sensor. According to the scheme, the accuracy of the detection result of the dragging torque and the end face run-out is improved.

Description

Technical Field

[0001] The present application relates to the field of detection technology, and in particular to a brake disc detection device. Background Art

[0002] Currently, brake disc drag torque and end runout are mostly measured manually. However, different personnel use different testing techniques. For example, when measuring drag torque, the force applied to the brake disc is difficult to control, so the disc cannot rotate at a constant speed during each test. This leads to large variability in test results, and thus, it is difficult to guarantee the accuracy of the measurement results. Summary of the Invention

[0003] The present application provides a brake disc detection device, which can improve the accuracy of detection results.

[0004] A brake disc detection device, comprising:

[0005] a drive assembly including a rotatable rotor;

[0006] a torque sensor comprising a coaxially arranged rotor connecting shaft and a brake disc connecting shaft, wherein the rotor connecting shaft is connected to the rotor, and the brake disc connecting shaft is configured to remain relatively fixed to the brake disc, and wherein the torque sensor is capable of generating a first electrical signal when the rotor connecting shaft and the brake disc connecting shaft rotate relative to each other about an axis;

[0007] A runout sensor includes a detection head configured to contact a surface of the brake disc, wherein the runout sensor generates a second electrical signal when the detection head is displaced;

[0008] A control and processing component is electrically connected to the drive component, the torque sensor and the runout sensor. The control and processing component is used to control the start and stop of the drive component. The torque sensor is used to output the first electrical signal to the control and processing component. The control and processing component determines the drag torque of the brake disc based on the first electrical signal. The runout sensor is used to output a second electrical signal to the control and processing component. The control and processing component determines the end face runout of the brake disc based on the second electrical signal.

[0009] Optionally, the brake disc detection device also includes a connecting assembly, which includes a connecting seat and a plurality of connecting parts arranged on the connecting seat, the plurality of connecting parts are arranged to be spaced apart around the rotating axis of the brake disc and used to remain relatively fixed with the brake disc, and the brake disc connecting shaft is connected to the connecting seat.

[0010] Optionally, the connecting assembly also includes a retractable telescopic rod, one end of the telescopic rod is connected to the brake disc connecting shaft, and the other end of the telescopic rod is connected to the connecting seat, the axis of the telescopic rod is set to coincide with the rotating axis of the brake disc, and the telescopic direction of the telescopic rod is the same as the direction of its own axis.

[0011] Optionally, the telescopic rod is detachably connected to the connecting seat; and / or

[0012] The telescopic rod is detachably connected to the brake disc connecting shaft.

[0013] Optionally, the vibration sensor is provided on the telescopic rod.

[0014] Optionally, the vibration sensor is detachably connected to the telescopic rod.

[0015] Optionally, the drive assembly includes a speed-adjustable drive motor.

[0016] Optionally, the vibration sensor includes a displacement sensor.

[0017] Optionally, the control and processing component includes an operation panel, and the operation panel is provided with a control mark for inputting control instructions.

[0018] Optionally, the control and processing component further includes a display screen, which is used to display the determined drag torque and end face runout.

[0019] The present application provides a brake disc detection device, in which a driving component is used to drive the brake disc to rotate, and a torque sensor and a runout sensor are used to input the signals collected by each into a control and processing component respectively, thereby realizing the automatic acquisition and calculation of the drag torque and end face runout, avoiding the problem of uncontrolled brake disc speed during manual operation, and improving the accuracy of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of a brake disc detection device shown in an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0021] Here, the technical solutions in the embodiments (or "implementations") of the present application will be clearly and completely described in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0022] If there are terms related to directional indications or positional relationships in the embodiments of this application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first" and "second" in the embodiments of this application are only used for the purpose of convenience of description and should not be understood as indicating or implying relative importance.

[0023] Please refer to Figure 1 , Figure 1 A schematic diagram of a brake disc detection device shown as an exemplary embodiment of the present application.

[0024] This application provides a brake disc detection device 100 for detecting the drag torque and end runout of a brake disc, with higher accuracy. Drag torque refers to the braking torque generated when the friction pad and caliper remain in contact when the vehicle's brakes are not in the braking state. End runout refers to the axial displacement of the disc surface from a point 10 mm above its maximum outer diameter during rotation.

[0025] like Figure 1 As shown, the detection device 100 includes a drive assembly 10, a torque sensor 20, a runout sensor 30, and a control and processing assembly 40. The drive assembly 10 includes a rotatable rotor, and the drive assembly includes but is not limited to a motor with adjustable speed.

[0026] The torque sensor 20 includes a coaxially arranged rotor connecting shaft and a brake disc connecting shaft. The rotor connecting shaft is connected to the rotor, and the brake disc connecting shaft is configured to maintain relative fixation with the brake disc. The torque sensor 20 generates a first electrical signal when the rotor connecting shaft and the brake disc connecting shaft rotate relative to each other about their axes. The torque sensor 20 includes, but is not limited to, a strain gauge torque sensor.

[0027] The runout sensor 30 includes a detection head that contacts the brake disc surface. When the detection head is displaced, it generates a second electrical signal. The detection head is displaced perpendicular to the disc surface and is positioned to contact the disc surface at a distance of 10 mm from the maximum outer diameter. The runout sensor 30 can be configured as a displacement sensor.

[0028] The control and processing component 40 is electrically connected to the drive assembly 10, the torque sensor 20, and the runout sensor 30. The control and processing component 40 is used to control the start and stop of the drive assembly 10. In one embodiment, the control and processing component 40 includes an operation panel with a control mark for inputting control instructions. The operator can input control instructions to the control and processing component 40 by touching the control mark, thereby controlling the start or stop of the drive assembly 10, making the operation process faster and more convenient.

[0029] The torque sensor 20 can output the first electrical signal to the control and processing component 40, which then determines the drag torque of the brake disc based on the first electrical signal. In one embodiment, the drive assembly 10 can be controlled to operate continuously for a certain period of time, thereby driving the brake disc to rotate multiple times. The control and processing component 40 can then convert the continuously input first electrical signal into a torque curve, and then determine the drag torque based on the torque curve. The specific method for determining the drag torque is not limited, and for example, the maximum or average value on the corresponding torque curve, or the torque value after the torque curve has stabilized, can be used.

[0030] The runout sensor 30 can output a second electrical signal to the control and processing component 40, which then determines the end face runout of the brake disc based on the second electrical signal. In one embodiment, during the rotation of the brake disc, the runout sensor 30 can continuously output the second electrical signal to the control and processing component 40. The control and processing component converts the continuously input second electrical signal into an end face runout curve and determines the end face runout based on the end face runout curve. The specific method for determining the end face runout is not limited, and for example, the maximum value or average value of the corresponding end face runout curve can be used, but is not limited to this.

[0031] According to the above description, the drive component 10 is used to drive the brake disc to rotate, and the torque sensor 20 and the vibration sensor 30 are used to input the signals collected by each into the control and processing component 40 respectively, thereby realizing the automatic acquisition and calculation of the drag torque and end face vibration, avoiding the problem of uncontrolled brake disc speed during manual operation, and improving the accuracy of the detection results.

[0032] In one embodiment, the brake disc detection device 100 further includes a connecting assembly 50, comprising a connecting seat 51 and a plurality of connecting portions 511 connected to the connecting seat 51. The plurality of connecting portions 511 are arranged to be spaced apart around the rotation axis of the brake disc and are used to maintain relative fixation with the brake disc. The brake disc connecting shaft of the torque sensor 20 is connected to the connecting seat 51. In this solution, by providing the connecting assembly 50, the plurality of spaced apart connecting portions 501 can be utilized to maintain relative fixation with the brake disc, making the connection more reliable, the connecting force more balanced, and ensuring that the brake disc rotates at a closer to uniform speed.

[0033] In a specific embodiment, each connecting portion 511 can be configured as a sleeve-type structure. For example, each connecting portion 511 can be respectively matched with the fastening bolts connecting the wheel hub and the tire, so that each connecting portion 511 remains relatively fixed with the wheel hub and the tire, and then remains relatively fixed with the brake disc, but is not limited to this.

[0034] In one embodiment, the connecting assembly 50 further includes a retractable telescopic rod 52, one end of which is connected to the brake disc connecting shaft, and the other end of which is connected to the connecting seat 51. The axis of the telescopic rod 52 is configured to coincide with the rotational axis of the brake disc, and the telescopic rod 52 extends and retracts in the same direction as its own axis. This allows the distance between the multiple connecting portions 511 and the brake disc to be adjusted by extending and retracting the telescopic rod 52, providing greater flexibility in the positioning of the multiple connecting portions 511 and facilitating reliable connection via the connecting assembly 50.

[0035] In one embodiment, the telescopic rod 52 is detachably connected to the connecting seat 51 and / or the telescopic rod 52 is detachably connected to the brake disc connecting shaft. In this way, the components of the detection device 100 can be disassembled and stored after the detection is completed, taking up less space.

[0036] In one embodiment, the runout sensor 30 is disposed on the telescopic rod 52, that is, the runout sensor 30 is mounted on the telescopic rod 52. In this way, the distance between the runout sensor 30 and the brake disc can be adjusted by extending and retracting the telescopic rod 52, making the position of the runout sensor 30 more flexible and facilitating good contact between the detection head of the runout sensor 30 and the brake disc surface.

[0037] In one embodiment, the beating sensor 30 is detachably connected to the telescopic rod 52. This makes it easy to replace and maintain the beating sensor 30, and also makes it easy to store the beating sensor 30.

[0038] In one embodiment, the drive assembly 10 includes an adjustable-speed drive motor. By adjusting the speed of the drive motor, the various rotational speeds of the wheel can be simulated, more closely resembling actual vehicle operating conditions and resulting in more accurate detection of drag torque and end runout. The drive assembly 10 may also utilize a rotary cylinder.

[0039] In one embodiment, the control and processing component 40 may further include a display screen for displaying the determined drag torque and end face runout. Specifically, after the control and processing component 40 calculates the drag torque and end face runout, they can be directly displayed on the display screen, making them more intuitive and convenient for the operator to view. Of course, the display screen can also be used to display control indicators. Specifically, if the display screen is configured as a touch screen, the operator can touch the control indicators to input corresponding control commands.

[0040] When using the detection device 100, the multiple connecting parts 511 are connected to the respective tire bolts. The control and processing component 40 controls the rotation of the drive motor, which drives the wheel (brake disc) through the connecting component 50 for N rotations. The torque sensor 20 inputs a first electrical signal corresponding to the wheel-end torque to the control and processing component 40. The control and processing component 40 records all torque data during the N rotations and determines the drag torque based on the generated torque curve. The runout sensor 30 inputs a second electrical signal corresponding to the end face runout to the control and processing component 40. The control and processing component 40 records all end face runout data during the N rotations and determines the end face runout based on the generated end face runout curve.

[0041] The detection device 100 provided herein has a simple structure, is easy to install when in use, and can be disassembled and stored when not in use, making it easy to carry. Furthermore, the detection device 100 provides a simple and effective testing solution, which improves testing efficiency, makes numerical reading more intuitive and accurate, and allows for long-term data storage, facilitating problem analysis and resolution.

[0042] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A brake disc detection device, characterized in that: include: a drive assembly including a rotatable rotor; a torque sensor comprising a coaxially arranged rotor connecting shaft and a brake disc connecting shaft, wherein the rotor connecting shaft is connected to the rotor, and the brake disc connecting shaft is configured to remain relatively fixed to the brake disc, and wherein the torque sensor is capable of generating a first electrical signal when the rotor connecting shaft and the brake disc connecting shaft rotate relative to each other about an axis; A runout sensor includes a detection head configured to contact a surface of the brake disc, wherein the runout sensor generates a second electrical signal when the detection head is displaced; A control and processing component is electrically connected to the drive component, the torque sensor and the runout sensor. The control and processing component is used to control the start and stop of the drive component. The torque sensor is used to output the first electrical signal to the control and processing component. The control and processing component determines the drag torque of the brake disc based on the first electrical signal. The runout sensor is used to output a second electrical signal to the control and processing component. The control and processing component determines the end face runout of the brake disc based on the second electrical signal.

2. The brake disc detection device according to claim 1, characterized in that: The brake disc detection device also includes a connecting component, which includes a connecting seat and a plurality of connecting parts arranged on the connecting seat. The plurality of connecting parts are arranged to be spaced apart around the rotating axis of the brake disc and are used to remain relatively fixed with the brake disc. The brake disc connecting shaft is connected to the connecting seat.

3. The brake disc detection device according to claim 2, characterized in that: The connecting assembly also includes a retractable telescopic rod, one end of which is connected to the brake disc connecting shaft, and the other end of the telescopic rod is connected to the connecting seat. The axis of the telescopic rod is set to coincide with the rotating axis of the brake disc, and the telescopic direction of the telescopic rod is the same as the direction of its own axis.

4. The brake disc detection device according to claim 3, characterized in that: The telescopic rod is detachably connected to the connecting seat; and / or The telescopic rod is detachably connected to the brake disc connecting shaft.

5. The brake disc detection device according to claim 3, characterized in that: The vibration sensor is arranged on the telescopic rod.

6. The brake disc detection device according to claim 5, characterized in that: The vibration sensor is detachably connected to the telescopic rod.

7. The brake disc detection device according to any one of claims 1 to 6, characterized in that: The drive assembly includes a speed-adjustable drive motor.

8. The brake disc detection device according to any one of claims 1 to 6, characterized in that: The runout sensor includes a displacement sensor.

9. The brake disc detection device according to any one of claims 1 to 6, characterized in that: The control and processing component includes an operation panel, and the operation panel is provided with a control mark for inputting control instructions.

10. The brake disc detection device according to any one of claims 1 to 6, characterized in that: The control and processing component further includes a display screen for displaying the determined drag torque and end face runout.

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