Vehicle braking efficiency simulation test platform for simulating dynamic load

Abstract

The utility model relates to the field of automobile detection, in particular to a vehicle brake efficiency simulation test platform for simulating dynamic load, which comprises a test platform, a connecting rod, a second motor, a brake disc, a chuck, a brake assembly and the like, the connecting rod is connected to the right side of the front part of the test platform, and the second motor is connected to the right side of the middle part of the test platform; an output shaft of the second motor is connected with a brake disc, the right side of the brake disc is connected with a chuck, and the front part of the test platform is provided with a brake assembly for braking the brake disc. According to the utility model, the temperature is detected through the temperature sensor, the measuring scale and the measuring jaw are moved through the movement of the connecting block, the thickness is measured through the movement of the measuring jaw and the contact with the brake disc, and the wear degree of the brake disc is judged through the detection result, so that the temperature and the wear degree of the brake disc can be detected in the braking process; the risk of personnel injury is reduced, the performance of the brake and the brake disc can be comprehensively evaluated, and the test reliability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile detection especially relates to a vehicle braking efficiency simulation test platform of simulating dynamic load. BACKGROUND

[0002] With the rapid development of automobile industry, the safety performance of vehicle has become one of the core problems of consumers and manufacturers, wherein, the efficiency of braking system is directly related to the driving safety and the life and property safety of passengers, and the vehicle braking efficiency simulation test platform is a device or system specially designed for evaluating and testing the performance of vehicle braking system.

[0003] The existing vehicle braking efficiency test usually relies on actual road test or static laboratory test, however, the actual road test is greatly affected by environmental factors, it is difficult to accurately control the test conditions, and there is a high safety risk, and the static laboratory test cannot comprehensively and accurately simulate the dynamic load and braking process under the real driving state, resulting in deviation between the test results and the actual use, which is not conducive to evaluating the performance of brake and brake disc, and affects the efficiency and reliability of the test, and the use is very inconvenient.

[0004] Therefore, a vehicle braking efficiency simulation test platform of simulating dynamic load is needed, which can detect the temperature and wear degree of brake disc during braking, reduce the risk of personnel injury, facilitate comprehensive evaluation of the performance of brake and brake disc, and improve the reliability of test. UTILITY MODEL CONTENTS

[0005] In order to overcome the shortcomings that the existing vehicle braking efficiency test usually relies on actual road test or static laboratory test, both of which have their own disadvantages, the utility model provides a vehicle braking efficiency simulation test platform of simulating dynamic load, which can detect the temperature and wear degree of brake disc during braking, reduce the risk of personnel injury, facilitate comprehensive evaluation of the performance of brake and brake disc, and improve the reliability of test.

[0006] The technical scheme of the utility model is: a vehicle braking efficiency simulation test platform of simulating dynamic load, which comprises a test platform, a connecting rod, a second motor, a brake disc, a chuck, a braking assembly and a detection assembly, the test platform is connected with the connecting rod on the right side of the front part, the test platform is connected with the second motor on the right side of the middle part, the output shaft of the second motor is connected with the brake disc, the brake disc is connected with the chuck on the right side, the test platform is provided with the braking assembly for braking the brake disc on the front part, and the test platform is provided with the detection assembly for detecting the temperature and wear degree of the brake disc on the upper part.

[0007] As an improvement of the above scheme, the test platform is L-shaped.

[0008] As the improvement of the above-mentioned scheme, the brake assembly comprises a double-shaft motor, a first screw rod, a brake pad and a pressure sensor, the right rear part of the connecting rod is connected with the double-shaft motor, the output shafts of the left and right parts of the double-shaft motor are connected with the first screw rods, the first screw rods are provided with sliding blocks through threads, the rear parts of the sliding blocks are connected with the pressure sensors, and the brake pads are connected with the pressure sensors on the sides close to each other.

[0009] As the improvement of the above-mentioned scheme, the detection assembly comprises a temperature sensor, a connecting block, a first motor, a second screw rod, a first electric push rod, a first spring, a scale, a scale claw, a second electric push rod and a second spring, the right side of the test platform is connected with the temperature sensor, the upper part of the test platform is connected with the connecting block in a sliding mode, the right side of the upper part of the test platform is connected with the first motor, the output shaft of the first motor is connected with the second screw rod, the second screw rod is rotatably connected with the test platform, the second screw rod is connected with the connecting block through threads, the upper side of the connecting block is connected with the first electric push rod, the connecting block is connected with the scale in a sliding mode, the scale is connected with the first spring between the first electric push rod and the telescopic end of the first electric push rod, the right side of the scale is connected with the scale claw, the scale is also connected with the scale claw in a sliding mode, and the lower side of the scale is connected with the second electric push rod.

[0010] As the improvement of the above-mentioned scheme, the connecting block is T-shaped.

[0011] As the improvement of the above-mentioned scheme, the upper part of the scale claw on the left part is provided with a display screen.

[0012] The beneficial effects of the present application are as follows: 1. The temperature sensor detects the temperature, the connecting block moves, the scale and the scale claw move, the scale claw moves and contacts the brake disc to measure the thickness, the detection result is used to judge the wear degree of the brake disc, so that the temperature and the wear degree of the brake disc can be detected during braking, the risk of personnel injury is reduced, the performance of the brake and the brake disc can be comprehensively evaluated, and the reliability of the test is improved.

[0013] 2. The sliding blocks move simultaneously, the brake pad moves and contacts the brake disc to brake, the pressure sensor detects the pressing force, so that the size of the braking pressure can be adjusted to brake the rotating brake disc, various braking scenes encountered in the actual driving process can be simulated, the braking effect under different pressure levels can be evaluated, and the authenticity of the simulation is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the present application.

[0015] Figure 2 It is a three-dimensional structure schematic view of the double-shaft motor and other components of the present application.

[0016] Figure 3 It is the three-dimensional structure schematic view of the ruler and other components of the utility model.

[0017] Figure 4 It is the three-dimensional structure schematic view of the chuck and other components of the utility model.

[0018] Figure 5 It is the three-dimensional structure schematic view of the connecting block and other components of the utility model.

[0019] In the above drawing: 1: test platform, 2: connecting rod, 21: double-shaft motor, 22: first screw rod, 23: brake pad, 24: pressure sensor, 3: temperature sensor, 4: connecting block, 41: first motor, 42: second screw rod, 43: first electric push rod, 44: first spring, 45: ruler, 46: measuring claw, 47: second electric push rod, 48: second spring, 5: second motor, 6: brake disc, 7: chuck. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] A vehicle braking efficiency simulation test platform simulating dynamic load, like Figures 1-5As shown, the system includes a test platform 1, a connecting rod 2, a second motor 5, a brake disc 6, a chuck 7, a braking assembly, and a detection assembly. The test platform 1 is L-shaped for easy support. The connecting rod 2 is connected to the front right side of the test platform 1, and the second motor 5 is connected to the middle right side of the test platform 1. The brake disc 6 is connected to the output shaft of the second motor 5, and the chuck 7 is connected to the right side of the brake disc 6. A braking assembly for braking the brake disc 6 is provided at the front of the test platform 1. The braking assembly includes a dual-axis motor 21, a first screw 22, a brake pad 23, and a detection assembly. The pressure sensor 24 is connected to the right rear side of the connecting rod 2, and the dual-axis motor 21 is connected to the output shafts of both the left and right sides of the dual-axis motor 21. The first screw 22 is connected to a slider via threads on each of the first screws 22, and the pressure sensor 24 is connected to the rear of each slider. The brake pad 23 is connected to the side of each pressure sensor 24 that is close to each other. The upper part of the test platform 1 is equipped with a detection component for detecting the temperature and wear degree of the brake disc 6. The detection component includes a temperature sensor 3, a connecting block 4, a first motor 41, and a second screw 42. The test platform 1 comprises a first electric actuator 43, a first spring 44, a measuring scale 45, a measuring jaw 46, a second electric actuator 47, and a second spring 48. The temperature sensor 3 is connected to the right side of the test platform 1. A connecting block 4, T-shaped for easy movement, is slidably connected to the upper part of the test platform 1. A first motor 41 is connected to the upper right side of the test platform 1. A second screw 42 is connected to the output shaft of the first motor 41, and the second screw 42 is rotatably connected to the test platform 1. The second screw 42 is threadedly connected to the connecting block 4. The first electric actuator 43 is connected to the upper side of the connecting block 4. The measuring scale 45 is slidably connected to the connecting block 4. The first spring 44 is connected between the measuring scale 45 and the telescopic end of the first electric actuator 43. The measuring jaw 46 is connected to the right side of the measuring scale 45. The measuring jaw 46 is also slidably connected to the measuring scale 45. The measuring jaw 46 on the left side is provided with a display screen for easy display of test data. The second electric actuator 47 is connected to the lower side of the measuring scale 45. The second spring 48 is connected between the telescopic end of the second electric actuator 47 and the measuring jaw 46 on the left side.

[0022] When it is necessary to simulate dynamic load to test the braking efficiency of the vehicle, the device can be used, so that the test platform 1 is in contact with the ground or the platform, the test platform 1 is L-shaped, which is convenient for supporting, then the second motor 5 is started, the brake disc 6 and the chuck 7 are driven to rotate by the second motor 5, in the process of rotating, the double-shaft motor 21 is started, the first screw rod 22 is driven to rotate by the double-shaft motor 21, under the action of the thread, the sliding block moves simultaneously, thereby driving the pressure sensor 24 to move, so that the brake pad 23 moves to contact the brake disc 6 to brake, the pressure sensor 24 detects the degree of extrusion, thereby adjusting different extrusion degrees to brake the brake disc 6, so as to adjust the size of the brake pressure to brake the rotating brake disc 6, which is convenient for simulating various braking scenes encountered in the actual driving process, evaluating the braking effect under different pressure levels, improving the authenticity of simulation, then the temperature of the brake disc 6 is detected by the temperature sensor 3, when the test time is long, the first motor 41 is started, the second screw rod 42 is driven to rotate by the first motor 41, under the action of the thread, the connecting block 4 moves, the connecting block 4 is T-shaped, which is convenient for moving, so that the scale 45 and the claw 46 move, after moving to the appropriate position, the first motor 41 is closed, the first electric push rod 43 and the second electric push rod 47 are started, the scale 45 moves reversely by the first electric push rod 43, thereby driving the right claw 46 to move reversely and contact the brake disc 6, the left claw 46 moves to contact the brake disc 6 by the second electric push rod 47, thereby detecting the thickness of the brake disc 6, the detection result is displayed on the display screen, the wear degree of the brake disc 6 is judged by the detection result, and buffering is performed under the action of the first spring 44 and the second spring 48, so as to detect the temperature and wear degree of the brake disc 6 during braking, reduce the risk of personnel injury, evaluate the performance of the brake and the brake disc 6 comprehensively, improve the reliability of the test, after the detection is completed, the scale 45 and the right claw 46 are moved to reset by the first electric push rod 43, the left claw 46 moves reversely to reset by the reverse operation of the second electric push rod 47, then the first electric push rod 43 and the second electric push rod 47 are closed, then the second screw rod 42 reversely rotates by the reverse operation of the first motor 41, under the action of the thread, the scale 45 and the claw 46 reversely move to reset, then the first motor 41 and the second motor 5 are closed, the first screw rod 22 reversely rotates by the reverse operation of the double-shaft motor 21, under the action of the thread, the sliding block reversely moves simultaneously, thereby driving the pressure sensor 24 to reversely move, so that the brake pad 23 reversely moves away from the brake disc 6,Subsequently, the dual-shaft motor 21 is turned off.

[0023] Although the present application is described in detail with reference to the above embodiments, it is apparent to those skilled in the art that various changes or modifications can be made to the present application without departing from the principles and spirit of the present application as defined in the appended claims. Therefore, the detailed description of the present application is only used to explain, but not to limit the present application, and the scope of protection is defined by the content of the claims.

Claims

1. A vehicle braking performance simulation test platform simulating dynamic load, characterized in that, The utility model provides a kind of brake disc temperature and wear degree testing device, including test platform (1), connecting rod (2), second motor (5), brake disc (6), chuck (7), brake assembly and detection assembly, test platform (1) right side in front is connected with connecting rod (2), test platform (1) right side in middle is connected with second motor (5), the output shaft of second motor (5) is connected with brake disc (6), brake disc (6) right side is connected with chuck (7), test platform (1) front is equipped with the brake assembly for brake disc (6) is braked, test platform (1) upper portion is equipped with the detection assembly for the temperature and wear degree of brake disc (6) is detected.

2. The vehicle braking performance simulation test platform simulating dynamic load of claim 1, wherein, Test platform (1) is L-shaped.

3. The simulation test platform for simulating the braking performance of a vehicle with dynamic load according to claim 1, characterized in that, Brake assembly includes double-shaft motor (21), first screw rod (22), brake pad (23) and pressure sensor (24), connecting rod (2) right rear is connected with double-shaft motor (21), the output shaft of double-shaft motor (21) left and right two parts is connected with first screw rod (22), first screw rod (22) is equipped with slider on the thread, the rear of slider is connected with pressure sensor (24), and the side of pressure sensor (24) close to each other is connected with brake pad (23).

4. The simulated dynamic load vehicle braking performance emulation test platform of claim 1, wherein, Detection assembly includes temperature sensor (3), connecting block (4), first motor (41), second screw rod (42), first electric push rod (43), first spring (44), measuring scale (45), measuring claw (46), second electric push rod (47) and second spring (48), test platform (1) right side is connected with temperature sensor (3), test platform (1) upper portion is slidably connected with connecting block (4), test platform (1) right side in upper portion is connected with first motor (41), the output shaft of first motor (41) is connected with second screw rod (42), second screw rod (42) is rotatably connected with test platform (1), second screw rod (42) is connected with connecting block (4) by thread, connecting block (4) upper side is connected with first electric push rod (43), connecting block (4) is slidably connected with measuring scale (45), and first spring (44) is connected between measuring scale (45) and the telescopic end of first electric push rod (43), measuring scale (45) right side is connected with measuring claw (46), and measuring claw (46) is slidably connected on measuring scale (45), measuring scale (45) lower side is connected with second electric push rod (47), and second spring (48) is connected between the telescopic end of second electric push rod (47) and left measuring claw (46).

5. The simulated dynamic load vehicle braking performance emulation test platform of claim 4, wherein, Connecting block (4) is T-shaped.

6. The simulated dynamic load vehicle braking performance emulation test platform of claim 4, wherein, Left measuring claw (46) upper portion is equipped with display screen.

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