A disc brake performance testing device for electric vehicles

Abstract

The application relates to the technical field of disc brake of electric vehicles, and discloses a disc brake performance testing device for electric vehicles, which comprises a base, the end surface of the base is fixedly connected with a main seat plate, the surface of the side, close to the main seat plate, of the base is fixedly connected with a rear seat plate, the surface of the side, away from the base, of the main seat plate is fixedly connected with a top frame, the surface of the side, away from the base, of the rear seat plate is fixedly connected with a control plate, and the inner wall of the rear seat plate is provided with an engine box. When the device is used, the disc brake device of the electric vehicle, which needs to be detected, is placed in the corresponding place in the device, including a brake control plate, a brake caliper and a brake disc. Meanwhile, according to the power required by the disc brake device to be detected, the corresponding engine of the device is placed in the engine box. At this time, the output sleeve rod is well connected with the output helical gear in the acceleration device, the engine is started, the output sleeve rod is driven to rotate, and the output helical gear is driven to rotate.

Description

Technical Field

[0001] This invention relates to the field of electric vehicle disc brake equipment technology, specifically to an electric vehicle disc brake performance testing device. Background Technology

[0002] Electric vehicle disc brakes are braking systems designed based on the principle of hydraulic transmission. They achieve braking by transmitting brake fluid pressure to clamp the brake pads onto the disc. Their structure includes precision components such as the brake disc, caliper, and brake cylinder. They feature high braking force and high heat dissipation efficiency, effectively reducing the risk of heat conduction through the wheel hub. Combined with an air-cooling design, they can reduce the probability of tire blowouts.

[0003] Electric vehicle disc brakes require testing for sealing, brake pad wear, and braking system performance (including idle testing, road testing, and emergency braking testing). Existing electric vehicle disc brake equipment uses specific devices for each test, making the completion of a single electric vehicle disc brake performance test a time-consuming and labor-intensive process requiring a large amount of equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a device for testing the performance of disc brakes in electric vehicles, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to a disc brake performance testing device for electric vehicles, comprising a base, a main seat plate fixedly connected to the end face of the base, a rear seat plate fixedly connected to the surface of the base near the main seat plate, and a top frame fixedly connected to the surface of the main seat plate away from the base, and further comprising:

[0007] An acceleration device, the acceleration device including an output sleeve rod, the surface of the output sleeve rod being threadedly connected with an output helical tooth, and the surface of the output helical tooth away from the output sleeve rod being meshed with a transmission helical tooth;

[0008] An emergency braking device includes a threaded shaft, the surface of which is threaded with an internal threaded seat, and a slide rod is fixedly connected to the surface of the internal threaded seat away from the threaded shaft.

[0009] A vibration fatigue device, comprising a sliding rod, the inner wall of which is threaded with a fastening bolt, and a connecting column fixedly connected to the surface of the sliding rod near the fastening bolt.

[0010] Furthermore, a control board is fixedly connected to the surface of the rear seat plate away from the base. An engine box is provided on the inner wall of the rear seat plate, and an engine is provided on the inner wall of the engine box. A motor is provided on the inner wall of the rear seat plate away from the control board. A rotating frame is fixedly connected to the surface of the main seat plate away from the base. A brake control plate is fixedly connected to the surface of the rotating frame away from the main seat plate. A brake caliper is fixedly connected to the inner wall of the brake control plate. A brake disc is provided on the surface of the brake caliper away from the brake control plate. There are two rotating frames, which are symmetrically distributed on the surface of the main seat plate.

[0011] Furthermore, the acceleration device includes a vertical plate, an output belt is connected to the surface of the transmission helical gear near the vertical plate, a transmission rod is rotatably connected to the inner wall of the output belt away from the transmission helical gear, a transmission belt is connected to the surface of the transmission rod near the rotating frame, the surface of the output sleeve penetrates the inner wall of the main seat plate and is rotatably connected to the inner wall of the main seat plate, the surface of the vertical plate near the output belt is fixedly connected to the surface of the main seat plate, the surface of the transmission helical gear away from the output helical gear is rotatably connected to the inner wall of the vertical plate, and the surface of the transmission rod near the transmission belt penetrates the inner wall of the rotating frame and is rotatably connected to the inner wall of the rotating frame.

[0012] Furthermore, a disc rotating rod is slidably connected to the surface of the transmission rod away from the transmission belt, and a pressure plate is fixedly connected to the end face of the disc rotating rod away from the transmission belt. A plug rod is inserted into the inner wall of the transmission rod near the pressure plate, and an elastic top plate is fixedly connected to the surface of the plug rod near the pressure plate. The surface of the plug rod penetrates the inner wall of the rotating frame and is rotatably connected to the inner wall of the rotating frame.

[0013] Furthermore, the emergency braking device includes a brake control plate, a horizontal plate fixedly connected to the inner wall of the brake control plate, a telescopic rod slidably connected to the inner wall of the slide rod, a push rod slidably connected to the surface of the telescopic rod near the slide rod, the surface of the slide rod slidably connected to the inner wall of the main seat plate, the surface of the slide rod near the telescopic rod slidably connected to the inner wall of the push rod near the telescopic rod, and the surface of the brake control plate away from the horizontal plate fixedly connected to the surface of the slide rod. There are two brake control plates, symmetrically distributed around the surface of the slide rod. There are four horizontal plates, divided into two groups, with two plates in each group. The two groups of horizontal plates are symmetrically distributed around the surface of the brake control plate. The surface of the threaded shaft penetrates the inner wall of the brake control plate and is rotatably connected to the inner wall of the brake control plate.

[0014] Furthermore, an arc plate is fixedly connected to the surface of the push rod away from the telescopic insertion rod, and a push post is in contact with the surface of the arc plate. A pressure plate is fixedly connected to the surface of the push post away from the arc plate, and a vibrating plate is in contact with the surface of the pressure plate away from the push post. There are sixteen arc plates, which are equidistantly distributed along the surface of the push rod. The surface of the push post is slidably connected to the inner wall of the main seat plate. There are twelve push posts, which are divided into two groups of six. The two groups of push posts are symmetrically distributed with respect to the surface of the pressure plate, and the surface of the pressure plate is slidably connected to the inner wall of the main seat plate.

[0015] Furthermore, the vibration fatigue device includes a sliding column, a vibration transmission belt is connected to the surface of the sliding column, a column pivot is provided on the surface of the main seat plate near the sliding column, a vibration shaft is rotatably connected to the inner wall of the vibration transmission belt away from the sliding column, the surface of the connecting column away from the fastening bolt is rotatably connected to the inner wall of the column pivot, and the surface of the sliding rod is slidably connected to the inner wall of the sliding column.

[0016] Furthermore, a shaft seat is rotatably connected to the surface of the vibrating shaft, a periodic push plate is fixedly connected to the end face of the vibrating shaft near the shaft seat, a reset seat plate is fixedly connected to the surface of the top frame near the shaft seat, a threaded push plate is in contact with the inner wall of the reset seat plate, and a pendulum plate is rotatably connected to the inner wall of the reset seat plate away from the threaded push plate. There are two shaft seats, symmetrically distributed around the surface of the vibrating shaft, and the surface of the shaft seat away from the vibrating shaft is fixedly connected to the surface of the top frame. There are four reset seats, divided into two groups of two, symmetrically distributed around the surface of the top frame, and each group of reset seats is symmetrically distributed around the surface of the shaft seat. The surface of the threaded push plate is slidably connected to the inner wall of the top frame, and the surface of the threaded push plate away from the reset seat plate is threadedly connected to the inner wall of the pendulum plate.

[0017] The present invention has the following beneficial effects:

[0018] When using this invention, the entire electric vehicle disc brake device to be tested, including the brake control plate, brake caliper, and brake disc, is placed in the corresponding position within the device. Simultaneously, based on the power required by the disc brake device to be tested, the corresponding engine is placed in the engine compartment. Inside the acceleration device, after the output sleeve and output helical gear are rotatably connected, the engine starts, driving the output sleeve to rotate. The output sleeve then drives the output helical gear to rotate. The output helical gear, through surface meshing, drives the transmission helical gear to rotate along the inner wall of the vertical plate. When the transmission helical gear rotates, it drives the output belt, which in turn drives the transmission rod on the other side of the inner wall to rotate along the inner wall of the rotating frame. Simultaneously, when the transmission rod rotates, it drives the transmission belt, which in turn drives the transmission rod on the other inner wall to rotate. This allows the brake disc to undergo various acceleration tests, specifically under disc brake conditions. At the same time, when the brake disc is installed in the corresponding position, the disc rotor on the transmission rod surface is pushed, ultimately causing the pressure plate to push against the brake disc surface for surface fixation. Simultaneously, the insertion rod is pushed to engage and fix with the inner wall of the transmission rod. Furthermore, when the insertion rod rotates, it drives the elastic top plate to move to the surface of the brake disc. Finally, the pressure plate and elastic top plate compress the brake disc, using elastic compression to fix it, reducing damage to the brake disc and minimizing the impact on disc brake system testing after acceleration.

[0019] When this invention is used, the motor inside the emergency braking device starts, driving the threaded shaft to rotate periodically. Because the surface of the slide rod slides along the inner wall of the main seat plate, and the surface of the internal threaded seat is fixedly connected to the surface of the slide rod, when the threaded shaft is connected through the surface thread, it will drive the internal threaded seat to rotate periodically. The internal threaded seat will also react on the slide rod, driving the slide rod to slide along the inner wall of the main seat plate. The slide rod will then drive the brake control plate to move, and the brake control plate will drive the cross plate to move, eventually moving it to the surface of the brake disc. Then, during the emergency braking test of the disc brake system, both brake discs can be tested simultaneously. At the same time, during the emergency braking test, it can be used to... The device vibrates left and right to test the emergency braking of the disc brake system under different conditions by changing the environment. At this time, the control board activates the telescopic rod to extend and retract, inserting the two rods on the other end of the telescopic rod into the slide rod and push rod respectively. Then, when the slide rod runs in cycles, it drives the push rod to run in cycles. When the push rod runs in cycles, it drives the arc plate to slide along the inner wall of the main seat plate. When the arc plate slides, it pushes the push rod downward. The push rod then drives the pressure plate to run downward along the inner wall of the main seat plate, thereby squeezing the vibrating plate and generating the left and right vibration of the device to test the emergency braking of the disc brake system under vibration.

[0020] When this invention is used, during vibration fatigue testing of the disc brake system within the vibration fatigue device, the sliding rod is pushed along the inner wall of the sliding post to the end face of the threaded shaft. Then, the fastening bolt is rotated to secure the sliding rod and the threaded shaft. As the threaded shaft rotates periodically, it drives the sliding rod to rotate periodically as well. Simultaneously, pushing the sliding rod moves the connecting post into the post seat, stabilizing the surface of the sliding rod as it rotates with the threaded shaft, thus providing better protection for the device. At the same time, the rotation of the sliding rod drives the sliding post to rotate, which in turn drives the vibration belt. The vibration belt then drives the vibration shaft on the other side of the inner wall to rotate along the inner wall of the shaft seat. When the vibration shaft rotates, it drives the periodic push plate on the end face to rotate. When the periodic push plate rotates, it causes the threaded push plates on both sides to slide along the inner wall of the top frame. At the same time, the surface of the other side of the threaded push plate slides along the inner wall of the reset seat plate. When the threaded push plate slides along the inner wall of the reset seat plate, it drives the pendulum plate to rotate along the inner wall of the reset seat plate through the threaded connection on the surface. Through the periodic rotation of the pendulum plate, the device generates back-and-forth vibration, which performs vibration fatigue testing on the braking system. When the periodic push plate moves away from the threaded push plate, the reset seat plate, through its own elasticity, drives the threaded push plate to reset and rotates in the opposite direction to vibrate in another direction, thus enabling better testing.

[0021] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the acceleration device structure of the present invention;

[0026] Figure 4 For the present invention Figure 3 Enlarged view of part A in the image;

[0027] Figure 5 This is a schematic diagram of the rotating frame structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the emergency braking device of the present invention;

[0029] Figure 7 This is a schematic diagram of the telescopic insertion rod structure of the present invention;

[0030] Figure 8 For the present invention Figure 7 Enlarged view of part B in the image;

[0031] Figure 9 This is a schematic diagram of the vibration fatigue device of the present invention;

[0032] Figure 10 For the present invention Figure 9 Enlarged view of section C in the image;

[0033] Figure 11 This is a schematic diagram of the vibration shaft structure of the present invention;

[0034] Figure 12 For the present invention Figure 11 Enlarged view of part D in the image.

[0035] The attached diagram lists the components represented by each number as follows:

[0036] In the diagram: 1. Acceleration device; 2. Emergency braking device; 3. Vibration fatigue device; 4. Engine; 5. Motor; 6. Control panel; 7. Base; 8. Main seat plate; 9. Rear seat plate; 10. Top frame; 11. Engine box; 12. Turning frame; 13. Brake control plate; 14. Brake caliper; 15. Brake disc; 21. Output sleeve; 22. Output helical gear; 23. Transmission helical gear; 24. Vertical plate; 25. Output belt; 26. Transmission rod; 27. Transmission belt; 28. Wheel swivel rod; 29. ​​Pressure plate; 30. Insert 31. Elastic top plate; 41. Threaded shaft; 42. Internal threaded seat; 43. Slide rod; 44. Brake control plate; 45. Horizontal plate; 46. Telescopic insert rod; 47. Push rod; 48. Pressure plate; 49. Vibration plate; 50. Arc plate; 51. Push column; 61. Sliding insert rod; 62. Fastening bolt; 63. Connecting column; 64. Column swivel seat; 65. Sliding insert column; 66. Vibration transmission belt; 67. Vibration shaft; 68. Shaft seat; 69. Periodic push plate; 70. Threaded push plate; 71. Reset seat plate; 72. Pendulum plate. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see Figure 1 - Figure 12 As shown, this invention is an electric vehicle disc brake performance testing device, including a base 7, a main seat plate 8 fixedly connected to the end face of the base 7, a rear seat plate 9 fixedly connected to the surface of the base 7 near the main seat plate 8, and a top frame 10 fixedly connected to the surface of the main seat plate 8 away from the base 7. It also includes:

[0039] Acceleration device 1 includes an output sleeve 21. After the output sleeve 21 is rotatably connected to the output helical gear 22, the engine 4 is started, which drives the output sleeve 21 to rotate. The output sleeve 21 will drive the output helical gear 22 to rotate. The output sleeve 21 is threaded with the output helical gear 22. The output helical gear 22 will drive the transmission helical gear 23 to rotate along the inner wall of the vertical plate 24 through surface meshing. The surface of the output helical gear 22 away from the output sleeve 21 is meshed with the transmission helical gear 23. When the transmission helical gear 23 rotates, it will drive the output belt 25 to perform transmission operation.

[0040] Emergency braking device 2 includes a threaded shaft 41. When the motor 5 is started, it drives the threaded shaft 41 to rotate periodically. Because the surface of the slide rod 43 slides along the inner wall of the main seat plate 8, and the surface of the internal thread seat 42 is fixedly connected to the surface of the slide rod 43, when the threaded shaft 41 is connected by the surface thread, it will drive the internal thread seat 42 to run periodically. The surface of the threaded shaft 41 is threadedly connected to the internal thread seat 42, and the internal thread seat 42 will also act on the slide rod 43, causing the slide rod 43 to slide along the inner wall of the main seat plate 8. The surface of the internal thread seat 42 away from the threaded shaft 41 is fixedly connected to the slide rod 43, and the slide rod 43 will drive the brake control plate 44 to run.

[0041] The vibration fatigue device 3 includes a sliding rod 61. The sliding rod 61 is pushed along the inner wall of the sliding column 65 to the end face of the threaded shaft 41. The inner wall of the sliding rod 61 is threaded with a fastening bolt 62. Then, the fastening bolt 62 is rotated to make the sliding rod 61 and the threaded shaft 41 relatively fastened. When the threaded shaft 41 rotates periodically, it can drive the sliding rod 61 to rotate periodically. A connecting column 63 is fixedly connected to the surface of the sliding rod 61 near the fastening bolt 62. When the sliding rod 61 is pushed, it will drive the connecting column 63 into the column seat 64. This can stabilize the surface of the sliding rod 61 when the threaded shaft 41 drives the sliding rod 61 to rotate, thus providing better protection for the device.

[0042] A control plate 6 is fixedly connected to the surface of the rear seat plate 9 away from the base 7. An engine box 11 is provided on the inner wall of the rear seat plate 9. An engine 4 is provided on the inner wall of the engine box 11. A motor 5 is provided on the inner wall of the rear seat plate 9 away from the control plate 6. A rotating frame 12 is fixedly connected to the surface of the main seat plate 8 away from the base 7. A brake control plate 13 is fixedly connected to the surface of the rotating frame 12 away from the main seat plate 8. A brake caliper 14 is fixedly connected to the inner wall of the brake control plate 13. A brake disc 15 is provided on the surface of the brake caliper 14 away from the brake control plate 13. There are two rotating frames 12, which are symmetrically distributed on the surface of the main seat plate 8.

[0043] The acceleration device 1 includes a vertical plate 24. A transmission helical gear 23 is connected to an output belt 25 on the surface near the vertical plate 24. The output belt 25 drives a transmission rod 26 on the inner wall of the other side to rotate along the inner wall of the rotating frame 12. The transmission rod 26 is rotatably connected to the inner wall of the output belt 25 away from the transmission helical gear 23. When the transmission rod 26 rotates, it drives a transmission belt 27, which in turn drives the transmission rod 26 on the other side of the inner wall to rotate. This, in turn, drives the brake disc 15 to perform various acceleration tests. In the case of disc brakes, the transmission rod 26 is connected to the transmission belt 27 on the side near the frame 12. The surface of the output sleeve 21 penetrates the inner wall of the main seat plate 8 and is rotatably connected to the inner wall of the main seat plate 8. The surface of the upright plate 24 near the output belt 25 is fixedly connected to the surface of the main seat plate 8. The surface of the transmission helical gear 23 away from the output helical gear 22 is rotatably connected to the inner wall of the upright plate 24. The surface of the transmission rod 26 near the transmission belt 27 penetrates the inner wall of the frame 12 and is rotatably connected to the inner wall of the frame 12.

[0044] A disc rod 28 is slidably connected to the surface of the transmission rod 26 away from the transmission belt 27. When the brake disc 15 is installed in the corresponding position, the disc rod 28 on the surface of the transmission rod 26 is pushed, ultimately causing the pressure plate 29 to be pushed onto the surface of the brake disc 15 for surface fixation. The end face of the disc rod 28 away from the transmission belt 27 is fixedly connected to the pressure plate 29. A rod 30 is inserted into the inner wall of the transmission rod 26 near the pressure plate 29. Pushing the rod 30 causes it to engage and fix with the inner wall of the transmission rod 26. Meanwhile, when the insert rod 30 is running, it will drive the elastic top plate 31 to move to the surface of the brake disc 15. Finally, the pressure plate 29 and the elastic top plate 31 squeeze the brake disc 15. Through elastic compression and fixation, damage to the brake disc 15 is reduced. After accelerating the brake disc 15, the impact on the disc brake system detection is reduced. The surface of the insert rod 30 near the pressure plate 29 is fixedly connected to the elastic top plate 31. The surface of the insert rod 30 penetrates the inner wall of the rotating frame 12 and is rotatably connected to the inner wall of the rotating frame 12.

[0045] The emergency braking device 2 includes a brake control plate 44, which drives the horizontal plate 45 to move, eventually moving it to the surface of the brake disc 15. During emergency braking testing of the disc brake system, both brake discs 15 can be tested simultaneously. The horizontal plate 45 is fixedly connected to the inner wall of the brake control plate 44, and a telescopic insert 46 is slidably connected to the inner wall of the slide rod 43. During emergency braking testing, the disc brake system can be tested under different conditions by altering the environment through left-right vibration. At this time, the control plate 6 activates the telescopic insert 46 to extend and retract, inserting two inserts at the other end of the telescopic insert 46 into the slide rod 43 and push rod 47 respectively. The push rod 47 is slidably connected to the surface of the telescopic insert 46 near the slide rod 43. Then, the slide rod 43 performs cyclical operation. When the push rod 47 is in operation, it will drive the push rod 47 to run periodically. When the push rod 47 runs periodically, it will drive the arc plate 50 to slide along the inner wall of the main seat plate 8. The surface of the slide rod 43 is slidably connected to the inner wall of the main seat plate 8. The surface of the slide rod 43 near the telescopic insertion rod 46 is slidably connected to the inner wall of the push rod 47 near the telescopic insertion rod 46. The surface of the brake control plate 44 away from the horizontal plate 45 is fixedly connected to the surface of the slide rod 43. There are two brake control plates 44, which are symmetrically distributed on the surface of the slide rod 43. There are four horizontal plates 45, which are divided into two groups, and there are two in each group. The two groups of horizontal plates 45 are symmetrically distributed on the surface of the brake control plate 44. The surface of the threaded shaft 41 penetrates the inner wall of the brake control plate 44 and is rotatably connected to the inner wall of the brake control plate 44.

[0046] An arc plate 50 is fixedly connected to the surface of the push rod 47 away from the telescopic rod 46. When the arc plate 50 slides, it will push the push column 51 downward. The surface of the arc plate 50 contacts the push column 51, and the push column 51 will drive the pressure plate 48 to move downward along the inner wall of the main seat plate 8, thereby squeezing the vibrating plate 49, thus generating the left and right vibration of the device, and performing emergency braking detection of the disc brake system under vibration. The surface of the push column 51 away from the arc plate 50 is fixedly connected to the pressure plate 48, and the surface of the pressure plate 48 away from the push column 51 contacts the vibrating plate 49. There are sixteen arc plates 50, which are equidistantly distributed along the surface of the push rod 47. The surface of the push column 51 is slidably connected to the inner wall of the main seat plate 8. There are twelve push columns 51, which are divided into two groups, with six in each group. The two groups of push columns 51 are symmetrically distributed with respect to the surface of the pressure plate 48, and the surface of the pressure plate 48 is slidably connected to the inner wall of the main seat plate 8.

[0047] The vibration fatigue device 3 includes a sliding column 65. When the sliding rod 61 rotates, it will drive the sliding column 65 to rotate, which in turn will drive the vibration transmission belt 66 to operate. The surface of the sliding column 65 is connected to the vibration transmission belt 66, which will drive the vibration shaft 67 on the inner wall of the other side to rotate along the inner wall of the shaft seat 68. The surface of the main seat plate 8 near the sliding column 65 is provided with a column rotating seat 64. The inner wall of the vibration transmission belt 66 away from the sliding column 65 is rotatably connected to the vibration shaft 67. When the vibration shaft 67 rotates, it will drive the periodic push plate 69 on the end face to rotate. The surface of the connecting column 63 away from the fastening bolt 62 is rotatably connected to the inner wall of the column rotating seat 64, and the surface of the sliding rod 61 is slidably connected to the inner wall of the sliding column 65.

[0048] A rotating shaft seat 68 is rotatably connected to the surface of the vibrating shaft 67. A periodic push plate 69 is fixedly connected to the end face of the vibrating shaft 67 near the rotating shaft seat 68. When the periodic push plate 69 rotates, it slides the threaded push plates 70 on both sides along the inner wall of the top frame 10. At the same time, the surface of the other side of the threaded push plate 70 slides along the inner wall of the reset seat plate 71. A reset seat plate 71 is fixedly connected to the surface of the top frame 10 near the rotating shaft seat 68. The inner wall of the reset seat plate 71 contacts the threaded push plates 70. When the periodic push plate 69 moves away from the threaded push plates 70, the reset seat plate 71, through its own elasticity, drives the threaded push plates 70 to perform a reset action and rotate in the opposite direction to vibrate in another direction, thereby improving detection. A pendulum plate 72 is rotatably connected to the inner wall of the reset seat plate 71 on the side away from the threaded push plates 70. When the threaded push plates 70 slide along the reset seat plate 71... When the inner wall of the seat plate 71 slides, the pendulum plate 72 will rotate along the inner wall of the reset seat plate 71 through the threaded connection on the surface. The periodic rotation of the pendulum plate 72 will cause the device to vibrate back and forth, and the braking system will be subjected to vibration fatigue testing. There are two rotating shaft seats 68, which are symmetrically distributed with respect to the surface of the vibration shaft 67. The surface of the rotating shaft seat 68 away from the vibration shaft 67 is fixedly connected to the surface of the top frame 10. There are four reset seat plates 71, which are divided into two groups, and each group has two reset seat plates 71. The two groups of reset seat plates 71 are symmetrically distributed with respect to the surface of the top frame 10. The surface of each group of reset seat plates 71 is symmetrically distributed with respect to the surface of the rotating shaft seat 68. The surface of the threaded push plate 70 is slidably connected to the inner wall of the top frame 10. The surface of the threaded push plate 70 away from the reset seat plate 71 is threadedly connected to the inner wall of the pendulum plate 72.

[0049] In use, the entire electric vehicle disc brake device to be tested, including the brake control plate 13, brake caliper 14, and brake disc 15, is placed in the corresponding position within the device. Simultaneously, based on the power required by the disc brake device to be tested, the corresponding engine 4 is placed in the engine housing 11. At this time, within the acceleration device 1, after the output sleeve 21 and output helical gear 22 are rotatably connected, the engine 4 starts, driving the output sleeve 21 to rotate. The output sleeve 21 then drives the output helical gear 22 to rotate. The output helical gear 22, through surface meshing, drives the transmission helical gear 23 to rotate along the inner wall of the vertical plate 24. When the transmission helical gear 23 rotates, it drives the output belt 25 to operate, which in turn drives the transmission rod 26 on the other side of the inner wall to rotate along the inner wall of the rotating frame 12. When the transmission rod 26 rotates, it drives the transmission belt 27 to rotate, which in turn drives the transmission rod 26 on the inner wall of the other side to rotate. This allows the brake disc 15 to undergo various acceleration tests, including those for disc brake applications. Simultaneously, when the brake disc 15 is installed in the corresponding position, the wheel hub 28 on the surface of the transmission rod 26 is pushed, ultimately causing the pressure plate 29 to be pushed onto the surface of the brake disc 15 for surface fixation. At the same time, the insertion rod 30 is pushed to engage and fix with the inner wall of the transmission rod 26. When the insertion rod 30 is running, it drives the elastic top plate 31 to move onto the surface of the brake disc 15. Finally, the pressure plate 29 and the elastic top plate 31 compress the brake disc 15, using elastic compression to fix it and reduce damage to the brake disc 15. After accelerating the brake disc 15, the impact on the disc brake system testing is reduced.At this time, the motor 5 in the emergency braking device 2 starts, driving the threaded shaft 41 to rotate periodically. Because the surface of the slide rod 43 slides along the inner wall of the main seat plate 8, and the surface of the internal threaded seat 42 is fixedly connected to the surface of the slide rod 43, when the threaded shaft 41 is connected by the surface thread, it will drive the internal threaded seat 42 to run periodically. The internal threaded seat 42 will also react on the slide rod 43, driving the slide rod 43 to slide along the inner wall of the main seat plate 8. The slide rod 43 will then drive the brake control plate 44 to run, and the brake control plate 44 will then drive the cross plate 45 to run, eventually moving it to the surface of the brake disc 15. Then, during the emergency braking test of the disc brake system, both brake discs 15 can be tested simultaneously. At the same time, during the emergency braking test, the left and right sides can be monitored. The vibration effect, through changes in the environment, performs emergency braking tests on the disc brake system under different conditions. At this time, the control board 6 activates the telescopic rod 46 to extend and retract, inserting the two rods on the other end of the telescopic rod 46 into the slide rod 43 and the push rod 47 respectively. Then, when the slide rod 43 runs periodically, it drives the push rod 47 to run periodically. When the push rod 47 runs periodically, it drives the arc plate 50 to slide along the inner wall of the main seat plate 8. When the arc plate 50 slides, it pushes the push column 51 downward. The push column 51 then drives the pressure plate 48 to run downward along the inner wall of the main seat plate 8, thereby squeezing the vibration plate 49, thus generating the left and right vibration of the device to perform emergency braking tests on the disc brake system under vibration conditions.At this time, inside the vibration fatigue device 3, when performing vibration fatigue testing on the disc brake system, the sliding rod 61 is pushed along the inner wall of the sliding post 65 to the end face of the threaded shaft 41. Then, the fastening bolt 62 is rotated to make the sliding rod 61 and the threaded shaft 41 relatively fastened. When the threaded shaft 41 rotates periodically, it can drive the sliding rod 61 to rotate periodically. At the same time, when the sliding rod 61 is pushed, it will drive the connecting post 63 into the post seat 64. This can stabilize the surface of the sliding rod 61 when the threaded shaft 41 drives the sliding rod 61 to rotate, thus providing better protection for the device. Meanwhile, when the sliding rod 61 rotates, it will drive the sliding post 65 to rotate. The sliding post 65 will then drive the vibration transmission belt 66 to operate. The vibration transmission belt 66 will then drive the vibration shaft 67 on the other side of the inner wall to rotate along the inner wall of the shaft seat 68. In dynamic operation, when the vibration shaft 67 rotates, it drives the periodic push plate 69 on the end face to rotate. When the periodic push plate 69 rotates, it drives the threaded push plates 70 on both sides to slide along the inner wall of the top frame 10. At the same time, the surface of the other side of the threaded push plate 70 slides along the inner wall of the reset seat plate 71. When the threaded push plate 70 slides along the inner wall of the reset seat plate 71, it drives the pendulum plate 72 to rotate along the inner wall of the reset seat plate 71 through the threaded connection on the surface. Through the periodic rotation of the pendulum plate 72, the device generates back-and-forth vibration, which performs vibration fatigue detection on the braking system. When the periodic push plate 69 moves away from the threaded push plate 70, the reset seat plate 71, through its own elasticity, drives the threaded push plate 70 to reset and rotate in the opposite direction to vibrate in another direction, thereby enabling better detection.

[0050] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An electric vehicle disc brake performance testing device, comprising a base (7), wherein a main seat plate (8) is fixedly connected to the end face of the base (7), a rear seat plate (9) is fixedly connected to the surface of the base (7) near the main seat plate (8), and a top frame (10) is fixedly connected to the surface of the main seat plate (8) away from the base (7), characterized in that, Also includes: A control plate (6) is fixedly connected to the surface of the rear seat plate (9) away from the base (7). An engine box (11) is provided on the inner wall of the rear seat plate (9). An engine (4) is provided on the inner wall of the engine box (11). A motor (5) is provided on the inner wall of the rear seat plate (9) away from the control plate (6). A rotating frame (12) is fixedly connected to the surface of the main seat plate (8) away from the base (7). A brake control plate (13) is fixedly connected to the surface of the rotating frame (12) away from the main seat plate (8). A brake caliper (14) is fixedly connected to the inner wall of the brake control plate (13). A brake disc (15) is provided on the surface of the brake caliper (14) away from the brake control plate (13). There are two rotating frames (12), and the two rotating frames (12) are symmetrically distributed on the surface of the main seat plate (8). Acceleration device (1), the acceleration device (1) includes an output sleeve (21), the surface of the output sleeve (21) is threaded with an output helical tooth (22), and the surface of the output helical tooth (22) away from the output sleeve (21) is meshed with a transmission helical tooth (23). An emergency braking device (2) includes a threaded shaft (41) and a brake control plate (44). The surface of the threaded shaft (41) is threaded with an internal threaded seat (42). A slide rod (43) is fixedly connected to the surface of the internal threaded seat (42) away from the threaded shaft (41). A horizontal plate (45) is fixedly connected to the inner wall of the brake control plate (44). A telescopic insert rod (46) is slidably connected to the inner wall of the slide rod (43). A push rod (47) is slidably connected to the surface of the telescopic insert rod (46) near the slide rod (43). The surface of the slide rod (43) is slidably connected to the inner wall of the main seat plate (8). The slide rod (43) is close to the telescopic insert rod (46). The surface of the brake control plate (44) on one side is slidably connected to the inner wall of the push rod (47) near the telescopic insert rod (46). The surface of the brake control plate (44) on the side away from the horizontal plate (45) is fixedly connected to the surface of the slide rod (43). There are two brake control plates (44), which are symmetrically distributed on the surface of the slide rod (43). There are four horizontal plates (45), which are divided into two groups, and there are two in each group. The two groups of horizontal plates (45) are symmetrically distributed on the surface of the brake control plate (44). The surface of the threaded shaft (41) penetrates the inner wall of the brake control plate (44) and is rotatably connected to the inner wall of the brake control plate (44). Vibration fatigue device (3), the vibration fatigue device (3) includes a sliding rod (61) and a sliding column (65). The inner wall of the sliding rod (61) is threaded with a fastening bolt (62). The surface of the sliding rod (61) near the fastening bolt (62) is fixedly connected with a connecting column (63). The surface of the sliding column (65) is connected with a vibration transmission belt (66). The surface of the main seat plate (8) near the sliding column (65) is provided with a column rotating seat (64). The inner wall of the vibration transmission belt (66) away from the sliding column (65) is rotatably connected with a vibration rotating shaft (67). The surface of the connecting column (63) away from the fastening bolt (62) is rotatably connected with the inner wall of the column rotating seat (64). The surface of the sliding rod (61) is slidably connected with the inner wall of the sliding column (65).

2. The electric vehicle disc brake performance testing device according to claim 1, characterized in that: The acceleration device (1) includes a vertical plate (24). The surface of the transmission helical gear (23) near the vertical plate (24) is connected to an output belt (25). The inner wall of the output belt (25) away from the transmission helical gear (23) is rotatably connected to a transmission rod (26). The surface of the transmission rod (26) near the rotating frame (12) is connected to a transmission belt (27). The surface of the output sleeve (21) penetrates the inner wall of the main seat plate (8) and is rotatably connected to the inner wall of the main seat plate (8). The surface of the vertical plate (24) near the output belt (25) is fixedly connected to the surface of the main seat plate (8). The surface of the transmission helical gear (23) away from the output helical gear (22) is rotatably connected to the inner wall of the vertical plate (24). The surface of the transmission rod (26) near the transmission belt (27) penetrates the inner wall of the rotating frame (12) and is rotatably connected to the inner wall of the rotating frame (12).

3. The electric vehicle disc brake performance testing device according to claim 2, characterized in that: The transmission rod (26) is slidably connected to a disc rotating rod (28) on the side away from the transmission belt (27). The end face of the disc rotating rod (28) away from the transmission belt (27) is fixedly connected to a pressure plate (29). A plug rod (30) is inserted into the inner wall of the transmission rod (26) near the pressure plate (29). An elastic top plate (31) is fixedly connected to the surface of the plug rod (30) near the pressure plate (29). The surface of the plug rod (30) penetrates the inner wall of the rotating frame (12) and is rotatably connected to the inner wall of the rotating frame (12).

4. The electric vehicle disc brake performance testing device according to claim 1, characterized in that: An arc plate (50) is fixedly connected to the surface of the push rod (47) away from the telescopic plug (46). The surface of the arc plate (50) contacts the push column (51). A pressure plate (48) is fixedly connected to the surface of the push column (51) away from the arc plate (50). A vibrating plate (49) is contacted on the surface of the pressure plate (48) away from the push column (51). There are sixteen arc plates (50) in total. The sixteen arc plates (50) are evenly distributed along the surface of the push rod (47). The surface of the push column (51) is slidably connected to the inner wall of the main seat plate (8). There are twelve push columns (51) in total. The twelve push columns (51) are divided into two groups, and the number of each group is set to six. The two groups of push columns (51) are symmetrically distributed with respect to the surface of the pressure plate (48). The surface of the pressure plate (48) is slidably connected to the inner wall of the main seat plate (8).

5. The electric vehicle disc brake performance testing device according to claim 1, characterized in that: The surface of the vibrating shaft (67) is rotatably connected to a shaft seat (68). A periodic push plate (69) is fixedly connected to the end face of the vibrating shaft (67) near the shaft seat (68). A reset plate (71) is fixedly connected to the surface of the top frame (10) near the shaft seat (68). A threaded push plate (70) contacts the inner wall of the reset plate (71). A pendulum plate (72) is rotatably connected to the inner wall of the reset plate (71) away from the threaded push plate (70). Two shaft seats (68) are provided, symmetrically distributed around the surface of the vibrating shaft (67). The surface of the rotating shaft seat (68) away from the vibration rotating shaft (67) is fixedly connected to the surface of the top frame (10). There are four reset seats (71). The four reset seats (71) are divided into two groups, and each group has two reset seats (71). The two groups of reset seats (71) are symmetrically distributed on the surface of the top frame (10). Each group of reset seats (71) is symmetrically distributed on the surface of the rotating shaft seat (68). The surface of the threaded push plate (70) is slidably connected to the inner wall of the top frame (10). The surface of the threaded push plate (70) away from the reset seats (71) is threadedly connected to the inner wall of the pendulum plate (72).

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