Brake disc detection device

Abstract

The brake disc detection device comprises an upper mounting plate and a lower mounting plate which are oppositely arranged up and down, the upper mounting plate is connected with the lower mounting plate through a supporting column, the lower mounting plate is provided with a connecting column, and the lower end of the connecting column is rotatably connected with the lower mounting plate; the lower portion of the connecting column is connected with a first driving motor arranged on the lower mounting plate through a bevel gear set, the upper end of the connecting column is provided with a threaded column, the threaded column is in threaded connection with a pressing block, and the upper mounting plate and the lower mounting plate are each provided with a mounting groove used for mounting a detection assembly; the fixed part of the telescopic column is slidably connected in the mounting groove, one end of the telescopic part of the telescopic column is rotatably connected with a rolling shaft, the circumferential outer wall of the rolling shaft is attached to the end face of the brake disc during detection, and the end of the telescopic part is further provided with a distance sensor. The overall abrasion loss of the brake disc and the specific abrasion loss of the front end face and the rear end face can be accurately measured through the distance sensor.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile component detection, in particular to a brake disc detection device. Background Art

[0002] The braking of a car mainly generates resistance through friction between the brake pads and the brake disc, so that the vehicle can achieve the effect of deceleration and braking. The thickness standards of the brake disc are divided into the front face and the rear face. The thickness standard of the brake disc end face is about 32 mm, and the thickness standard of the brake disc rear face is about 28 mm. As the car brakes during use, the thickness of the brake disc will be worn. The wear limit thickness of the front face of the car brake disc is about 29 mm, and the wear limit thickness of the rear face of the brake disc is about 25 mm. When the total wear depth on both sides of the brake disc reaches 2 mm, the brake disc needs to be replaced. Thin brake discs will warp or even break in the hot and cold cycles of severe braking.

[0003] Therefore, it is necessary to inspect and replace the brake disc regularly to avoid the situation where the vehicle braking is affected by excessive wear of the brake disc. The patent with application number CN202121325787.0 discloses a brake disc detection device. The device detects the thickness of the brake disc through two detection plates and a measuring tool. However, when this detection method detects the thickness of the brake disc, it can only detect the overall thickness of the brake disc, and cannot accurately detect the wear values ​​of the front end face and the rear end face, and cannot accurately guarantee the thickness uniformity and surface flatness of the brake disc. Utility Model Content

[0004] The purpose of the utility model is to provide a brake disc detection device that can solve the above-mentioned problem.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a brake disc detection device, comprising an upper mounting plate and a lower mounting plate arranged opposite to each other up and down, the upper mounting plate and the lower mounting plate are fixedly connected by a vertically arranged support column, a connecting column for fixing the brake disc is provided at the center of the lower mounting plate, the lower end of the connecting column is rotatably connected to the lower mounting plate through a bearing, the lower part of the connecting column is connected to a first driving motor arranged on the lower mounting plate through a bevel gear set that meshes with each other, a threaded column is provided at the upper end of the connecting column, a pressure block for pressing and fixing the brake disc is threadedly connected to the threaded column, the upper mounting plate and the lower mounting plate are both provided with mounting grooves, a detection component is provided in the mounting groove, and the detection component of the upper mounting plate and the detection component of the lower mounting plate are symmetrical up and down;

[0006] The detection component includes a telescopic column, a fixed part of the telescopic column is slidably connected in the installation groove, one end of the telescopic part of the telescopic column is rotatably connected to a roller, and during detection, the circumferential outer wall of the roller is in contact with the end surface of the brake disc, and a distance sensor is also provided at this end of the telescopic part.

[0007] Furthermore, the distance sensor includes an infrared transmitting tube and an infrared receiving tube, and two distance sensors are provided, wherein the infrared transmitting tubes of the two distance sensors are sequentially installed on the telescopic part of the telescopic column connected to the upper mounting plate, and a standard column is provided in the mounting groove of the lower mounting plate, wherein the infrared receiving tube of one distance sensor is arranged on the upper end surface of the standard column, and the infrared receiving tube of the other distance sensor is arranged on the telescopic part of the telescopic column connected to the lower mounting plate.

[0008] Furthermore, a T-shaped sliding block is provided at the lower end of the fixing portion of the telescopic column, and a T-shaped sliding groove adapted to the T-shaped sliding block is provided on the bottom surface of the mounting groove.

[0009] Furthermore, a transmission screw is rotatably connected in each of the two mounting grooves. The transmission screw passes through a fixing portion of the telescopic column, and the fixing portion is threadably matched with the transmission screw.

[0010] Furthermore, a second driving gear is provided on the upper end surface of the upper mounting plate, and a transmission shaft is connected to the driving shaft of the second driving gear. Both ends of the transmission shaft are rotatably connected to the upper mounting plate and the lower mounting plate respectively, and the transmission shaft is connected to the transmission screw through a bevel gear set at the corresponding transmission screw.

[0011] Compared with the prior art, the advantages of the utility model are:

[0012] The distance sensor can accurately measure the overall wear of the brake disc and the specific wear of the front and rear end surfaces, which is convenient for better and more accurate understanding of the exact wear of the brake disc, and then better maintenance; the matching T-shaped slider and T-shaped slide groove enable the telescopic column to move left and right, which is convenient for detecting the wear of the brake disc at different diameters, making the detection data more comprehensive; on the other hand, the drive shaft is connected to the active bevel gear of the bevel gear set, and the transmission screw is connected to the driven bevel gear of the bevel gear set. The drive shaft is driven to rotate by the second drive motor, and the two transmission screws are rotated synchronously through the transmission of the bevel gear set, and the two telescopic columns can move synchronously, ensuring that the two rollers are at the same diameter of the brake disc, thereby improving the accuracy of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front cross-sectional view of the utility model;

[0014] Figure 2 for Figure 1 AA view of the .

[0015] In the figure: 1. upper mounting plate; 2. lower mounting plate; 3. connecting column; 4. threaded column; 5. pressure block; 6. mounting groove; 7. telescopic column; 701. fixing part; 702. telescopic part; 703. spring; 8. roller; 9. distance sensor; 901. infrared transmitting tube; 902. infrared receiving tube; 10. standard column; 11. transmission screw; 12. bevel gear set; 13. first driving motor; 14. second driving gear; 15. transmission shaft; 16. supporting column. DETAILED DESCRIPTION

[0016] The utility model will be further described below.

[0017] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0018] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0019] See also Figure 1 and Figure 2

[0020] A brake disc detection device, comprising an upper mounting plate 1 and a lower mounting plate 2 arranged opposite to each other in the upper and lower directions, wherein the upper mounting plate 1 and the lower mounting plate 2 are fixedly connected via a vertically arranged support column 16, a connecting column 3 for fixing the brake disc is arranged at the center of the lower mounting plate 2, the lower end of the connecting column 3 is rotatably connected to the lower mounting plate 2 via a bearing, the lower part of the connecting column 3 is connected to a first driving motor 13 arranged on the lower mounting plate 1 via a bevel gear set 12 meshing with each other, a threaded column 4 is arranged at the upper end of the connecting column 3, a pressing block 5 for pressing and fixing the brake disc is threadedly connected to the threaded column 4, and the upper mounting plate 1 and the lower mounting plate 2 are both provided with There is a mounting groove 6, in which a detection component is provided, and the detection component of the upper mounting plate 1 is symmetrical with the detection component of the lower mounting plate 2; the detection component includes a telescopic column 7, and the telescopic column 7 includes a fixed part 701 and a telescopic part 702, the telescopic part 702 is slidably inserted into the fixed part 701, and a spring 703 is provided between the telescopic part 702 and the fixed part 701, the fixed part 701 of the telescopic column is slidably connected in the mounting groove 6, and one end of the telescopic part 702 of the telescopic column 7 is rotatably connected with a roller 8, and the circumferential outer wall of the roller 8 is in contact with the end face of the brake disc during detection, and a distance sensor 9 is also provided at this end of the telescopic part 702.

[0021] The distance sensor 9 includes an infrared transmitting tube 901 and an infrared receiving tube 902. Two distance sensors 9 are provided, wherein the infrared transmitting tubes 901 of the two distance sensors 9 are sequentially installed in the telescopic part 702 of the telescopic column 7 connected to the upper mounting plate 1, and a standard column 10 is provided in the mounting groove 6 of the lower mounting plate 2, wherein the infrared receiving tube 902 of one distance sensor 9 is arranged on the upper end surface of the standard column 10, and the infrared receiving tube 902 of the other distance sensor 9 is arranged on the telescopic part 702 of the telescopic column 7 connected to the lower mounting plate 2.

[0022] The working principle of this utility model:

[0023] First, remove the pressure block 5 from the threaded column 4, then put the brake disc on the threaded column 4, and screw the pressure block 5 on the threaded column 4 so that the pressure block 5 is pressed against the brake disc, fix the brake disc on the connecting column 4, and at the same time move the telescopic column 7 set on the upper mounting plate 1 and the lower mounting plate 2 so that the roller 8 fits the worn edge of the brake disc. At this time, the overall wear of the brake disc and the specific wear of the front and rear end faces can be measured by the distance sensor 9; the specific measurement method is as follows, because the infrared emission starting point of the infrared emitting tube 901 of the distance sensor 9 is flush with the lower end of the roller 8 (that is, the contact point of the roller 8 with the edge wear of the upper end face of the brake disc), and the infrared receiving point of the infrared receiving tube 902 installed on the telescopic part 702 is flush with the upper end of the roller 8 (that is, the contact surface point of the roller 8 with the edge wear of the lower end face of the brake disc), the distance sensor 9 can measure the overall thickness of the worn edge of the brake disc, and the measured thickness is deducted from the unworn thickness of the brake disc when it leaves the factory. The overall thickness of the brake disc can be measured, and the overall wear of the brake disc can be measured. On the other hand, since the brake pad is worn at its edges during normal use, and the center is not worn and has always been at a standard thickness, the infrared receiving point of the infrared receiving tube 902 installed on the standard column 11 is flush with the lower end face at the center of the brake disc. Therefore, the wear of the edge wear of the upper end face of the brake disc can be measured by the distance sensor 9, and the wear of the lower end face is calculated by subtracting the wear of the upper end face from the overall wear; then the first drive motor 13 is started, and the driving shaft of the first drive motor 13 is connected to the active bevel gear of the bevel gear set 12, and the active bevel gear drives the driven bevel gear of the bevel gear set 12 arranged at the lower end of the connecting column 3, thereby driving the connecting column 3 and the brake disc to rotate. During the rotation of the brake disc, the distance sensor 9 can detect the wear of each part of the brake disc under this diameter in real time, and draw it into a line graph through a computer, so as to observe the wear of the brake disc more clearly.

[0024] Specifically, in this embodiment, a T-shaped slider is provided at the lower end of the fixed portion 701 of the telescopic column 7, and a T-shaped slide groove adapted to the T-shaped slider is provided on the bottom surface of the mounting groove 6. A transmission screw 11 is rotatably connected in both mounting grooves 6, and the transmission screw 11 passes through the fixed portion 701 of the telescopic column 7, and the fixed portion 701 is threadedly adapted to the transmission screw 11. A second driving gear 14 is provided on the upper end surface of the upper mounting plate 1, and a transmission shaft 15 is connected to the driving shaft of the second driving gear 14. The two ends of the transmission shaft 15 are rotatably connected to the upper mounting plate 1 and the lower mounting plate 2, respectively, and the transmission shaft 15 is connected to the transmission screw 11 through a bevel gear set 12 at the corresponding position of the transmission screw 11.

[0025] Through the matching T-shaped slider and T-shaped slot, the telescopic column 7 can move left and right, which is convenient for detecting the wear of the brake disc at different diameters and making the detection data more comprehensive; on the other hand, the transmission shaft 15 is connected to the active bevel gear of the bevel gear set 12, and the transmission screw 11 is connected to the driven bevel gear of the bevel gear set 12. The transmission shaft 15 is driven to rotate by the second drive motor 14, and the two transmission screws 11 are driven synchronously by the transmission of the bevel gear set 12, and the two telescopic columns 7 can move synchronously, ensuring that the two rollers 8 are at the same diameter of the brake disc, thereby improving the accuracy of detection.

[0026] Specific examples are used in this article to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the method of the utility model and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation methods and application scope. Changes and improvements to the utility model will be possible without exceeding the concept and scope specified in the attached claims. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A brake disc detection device, characterized in that: The invention comprises an upper mounting plate (1) and a lower mounting plate (2) which are arranged opposite to each other in the upper and lower parts, wherein the upper mounting plate (1) and the lower mounting plate (2) are fixedly connected via a vertically arranged support column (16), a connecting column (3) for fixing a brake disc is arranged at the center of the lower mounting plate (2), the lower end of the connecting column (3) is rotatably connected to the lower mounting plate (2) via a bearing, the lower part of the connecting column (3) is connected to a first driving motor (13) arranged on the lower mounting plate (2) via a bevel gear set (12) which meshes with each other, a threaded column (4) is arranged at the upper end of the connecting column (3), a pressure block (5) for pressing and fixing the brake disc is threadedly connected to the threaded column (4), the upper mounting plate (1) and the lower mounting plate (2) are both provided with a mounting groove (6), a detection component is arranged in the mounting groove (6), and the detection component of the upper mounting plate (1) and the detection component of the lower mounting plate (2) are symmetrical in the upper and lower parts; The detection component comprises a telescopic column (7), a fixed portion (701) of the telescopic column being slidably connected in a mounting groove (6), one end of a telescopic portion (702) of the telescopic column (7) being rotatably connected to a roller (8), the circumferential outer wall of the roller (8) being in contact with the end surface of a brake disc during detection, and a distance sensor (9) being further provided at the end of the telescopic portion (702).

2. A brake disc detection device according to claim 1, characterized in that: The distance sensor (9) comprises an infrared transmitting tube (901) and an infrared receiving tube (902), and two distance sensors (9) are provided, wherein the infrared transmitting tubes (901) of the two distance sensors (9) are sequentially mounted on the telescopic portion (702) of the telescopic column (7) connected to the upper mounting plate (1), and a standard column (10) is provided in the mounting groove (6) of the lower mounting plate (2), wherein the infrared receiving tube (902) of one distance sensor (9) is arranged on the upper end surface of the standard column (10), and the infrared receiving tube (902) of the other distance sensor (9) is arranged on the telescopic portion (702) of the telescopic column (7) connected to the lower mounting plate (2).

3. A brake disc detection device according to claim 2, characterized in that: A T-shaped sliding block is provided at the lower end of the fixing portion (701) of the telescopic column (7), and a T-shaped sliding groove adapted to the T-shaped sliding block is provided on the bottom surface of the mounting groove (6).

4. A brake disc detection device according to claim 3, characterized in that: A transmission screw (11) is rotatably connected in each of the two mounting grooves (6); the transmission screw (11) passes through a fixing portion (701) of the telescopic column (7), and the fixing portion (701) is threadably matched with the transmission screw (11).

5. A brake disc detection device according to claim 4, characterized in that: The upper end surface of the upper mounting plate (1) is provided with a second driving gear (14), the driving shaft of the second driving gear (14) is connected to a transmission shaft (15), the two ends of the transmission shaft (15) are respectively rotatably connected to the upper mounting plate (1) and the lower mounting plate (2), and the transmission shaft (15) is connected to the transmission screw (11) via a bevel gear set (12) at a location corresponding to the transmission screw (11).

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