Brake effect experiment device
By introducing an adjustable motor and a laser sensor into the braking effect test device, the problem of inconvenient adjustment of the roller spacing in the prior art has been solved, enabling rapid adaptation to testing of vehicles with different wheelbases. It can also synchronously drive the wheel rotation and detect the braking torque, thus improving the applicability and accuracy of the test.
Patent Information
- Application Number
- CN202422738930.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-11
AI Technical Summary
Existing automotive braking test benches cannot or are not convenient to adjust the spacing between test rollers, making it difficult to meet the testing requirements of vehicles with different wheelbases.
A braking effect experimental device was designed. By adjusting the rotation of the motor-driven lead screw, combined with the sliding cooperation of the adjusting slide rail and slide groove, the roller spacing can be quickly adjusted. The spacing is measured by a laser sensor. At the same time, the drive motor and bevel gear steering gear drive the wheels to rotate, and torque and braking force sensors are equipped for detection.
It enables quick and convenient adjustment of the roller spacing to meet the testing needs of vehicles with different wheelbases, ensuring testing accuracy, and can simultaneously drive wheel rotation and detect braking torque, thus improving the applicability and accuracy of the test.
Smart Images
Figure CN223485507U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of experimental device technology, specifically relating to a braking effect experimental device. Background Technology
[0002] An automotive brake test bench, also known as an automotive brake inspection bench, is a specialized piece of equipment used to test the braking performance of a vehicle. It can quickly, accurately, and quantitatively display key parameters such as wheel braking force, coordination time, drag force, and parking brake force. These parameters are crucial for evaluating the quality of a vehicle's braking performance and directly affect driving safety. However, current automotive brake test benches either cannot adjust the spacing between the test rollers or make it inconvenient to adjust the spacing, making it very inconvenient when testing vehicles with different wheelbases. Utility Model Content
[0003] To address the above problems, the purpose of this utility model is to provide a braking effect testing device that can quickly and conveniently adjust the spacing of the rollers to meet the testing requirements of vehicles with different wheelbases.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a braking effect experimental device, comprising a base, a screw plate on the side of the base, an inner support cover installed on the top of the base, an adjusting slide rail on the top of the base, the adjusting slide rail being slidably connected to an adjusting groove at the bottom of an adjusting slide block, a connecting frame on the side of the adjusting slide block, one end of the connecting frame being connected to an outer support cover, an adjusting motor installed on the top of the base, the output shaft of the adjusting motor being connected to a lead screw, the lead screw being threadedly connected to the adjusting slide block, an axle load sensor installed on the top of the adjusting slide block, a testing device installed on the top of the axle load sensor, and a through groove extending between the top and bottom of the outer support cover, the inner side of the through groove being provided with an anti-impact ramp.
[0005] The beneficial effects of this invention are as follows: When using this device, the distance between the two sets of adjusting slides can be adjusted according to the wheelbase of the vehicle to be tested. During adjustment, the adjusting motor is controlled to run, and the lead screw of the adjusting motor is rotated. Through the transmission between the lead screw and the adjusting slide, the adjusting slide moves through the sliding cooperation of the adjusting slide rail and the adjusting slide groove, thereby adjusting the distance between the testing devices on the two sets of adjusting slides. The distance between the two sets of adjusting slides is measured by a laser sensor. While the adjusting slide moves, the outer support cover moves synchronously through the connecting frame, while maintaining the coverage of the end of the inner support cover, without affecting the up and down movement of the vehicle. It can also quickly and conveniently adjust the distance between the rollers to meet the testing needs of vehicles with different wheelbases.
[0006] To drive the wheels to rotate:
[0007] As a further improvement to the above technical solution: the testing device includes a mounting base, on the top of which are two sets of roller mounting frames. The inner sides of the two sets of roller mounting frames are respectively equipped with a driving roller and a driven roller. A drive motor is mounted on the top of the mounting base. The output end of the drive motor is connected to the input shaft of the gearbox. The output shaft of the gearbox is connected to the input shaft of the bevel gear steering gear. The output shaft of the bevel gear steering gear is connected to one end of the driving roller.
[0008] The beneficial effects of this improvement are as follows: When the test begins, the drive motor drives the gearbox to operate, the output shaft of the gearbox drives the bevel gear steering gear to operate, and then the output shaft of the bevel gear steering gear drives the drive roller to rotate. Through the friction between the drive roller and the wheel, the wheel is driven to rotate in cooperation with the driven roller.
[0009] To test wheel torque and braking force:
[0010] As a further improvement to the above technical solution: braking force sensors are installed at both ends of the outer support cover and the base, and on the bearing seat of the active roller; a torque sensor is installed on the outer side of the shaft of the active roller.
[0011] The beneficial effects of this improvement are: when the drive wheels are rotating, the torque on the car wheels can be detected by the torque sensor; when the car brake pedal is pressed, the braking force can be detected by the braking force sensor.
[0012] To facilitate vehicle loading and unloading of this device and its movement between the inner and outer support covers:
[0013] As a further improvement to the above technical solution: both ends of the inner support cover are equipped with anti-slip ramps.
[0014] The beneficial effects of this improvement are: the anti-slip ramp facilitates the entry and exit of vehicles from this device and their movement between the inner support cover and the outer support cover.
[0015] To improve the friction between impact-resistant ramps, anti-skid ramps, and vehicle wheels:
[0016] As a further improvement to the above technical solution: the surfaces of the anti-impact slope and the anti-slip slope are both covered with a rubber anti-slip layer.
[0017] The beneficial effects of this improvement are: the rubber anti-slip layer is used to increase the friction between the anti-impact ramp, the anti-slip ramp and the wheel, thereby preventing slippage.
[0018] To facilitate determining the position of the adjusting slide:
[0019] As a further improvement to the above technical solution: laser sensors are provided on the opposite sides of both sets of adjustment slides.
[0020] The beneficial effect of this improvement is that the distance between the two sets of adjusting slides is measured by a laser sensor, which makes it easier to determine the position of the adjusting slides.
[0021] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the axonometric structure of the present utility model;
[0023] Figure 2 This is a partial cross-sectional isometric schematic diagram of the present invention;
[0024] Figure 3 This is a partial isometric view of the present invention;
[0025] Figure 4 This is a schematic diagram of the bottom structure of the adjusting slide and the outer support cover in this utility model;
[0026] Figure 5 This is a schematic diagram of the structure of the adjusting slide and the testing device in this utility model;
[0027] Figure 6 This is a schematic diagram of the testing device in this utility model;
[0028] In the diagram: 1. Base; 2. Screw plate; 3. Inner support cover; 4. Adjusting slide rail; 5. Adjusting slide block; 6. Connecting frame; 7. Outer support cover; 8. Adjusting slide groove; 9. Adjusting motor; 10. Lead screw; 11. Axle load sensor; 12. Mounting base; 13. Roller mounting frame; 14. Driving roller; 15. Driven roller; 16. Drive motor; 17. Gearbox; 18. Bevel gear steering gear; 19. Through groove; 20. Impact-resistant ramp; 21. Anti-slip ramp; 22. Laser sensor; 23. Braking force sensor; 24. Torque sensor. Detailed Implementation
[0029] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.
[0030] like Figure 1-6As shown, a braking effect experimental device includes a base 1, a screw plate 2 on the side of the base 1, an inner support cover 3 on the top of the base 1, an adjusting slide rail 4 on the top of the base 1, the adjusting slide rail 4 being slidably connected to the adjusting slide groove 8 at the bottom of the adjusting slide block 5, a connecting frame 6 on the side of the adjusting slide block 5, one end of the connecting frame 6 being connected to the outer support cover 7, an adjusting motor 9 on the top of the base 1, the output shaft of the adjusting motor 9 being connected to a lead screw 10, the lead screw 10 being threadedly connected to the adjusting slide block 5, an axle load sensor 11 on the top of the adjusting slide block 5, a testing device on the top of the axle load sensor 11, and a through groove 19 penetrating between the top and bottom of the outer support cover 7, with an anti-impact ramp 20 on the inner side of the through groove 19.
[0031] When using this device, the distance between the two sets of adjusting slide blocks 5 can be adjusted according to the wheelbase of the car to be tested. During adjustment, the adjusting motor 9 is controlled to run, and the adjusting motor 9 drives the lead screw 10 to rotate. Through the transmission between the lead screw 10 and the adjusting slide block 5, the adjusting slide block 5 is moved through the sliding cooperation of the adjusting slide rail 4 and the adjusting slide groove 8, thereby adjusting the distance between the test devices on the two sets of adjusting slide blocks 5. The distance between the two sets of adjusting slide blocks 5 is measured by the laser sensor 22. While the adjusting slide block 5 moves, the connecting frame 6 drives the outer support cover 7 to move synchronously, while maintaining the coverage of the end of the inner support cover 3, so as not to affect the car's up and down movement. It can quickly and conveniently adjust the distance between the rollers to meet the testing needs of vehicles with different wheelbases.
[0032] The testing device includes a mounting base 12, on the top of which are two sets of roller mounting frames 13. The inner sides of the two sets of roller mounting frames 13 are respectively equipped with a driving roller 14 and a driven roller 15. A drive motor 16 is mounted on the top of the mounting base 12. The output end of the drive motor 16 is connected to the input shaft of a reduction gearbox 17. The output shaft of the reduction gearbox 17 is connected to the input shaft of a bevel gear steering gear 18. The output shaft of the bevel gear steering gear 18 is connected to one end of the driving roller 14.
[0033] When the test begins, the drive motor 16 drives the reduction gearbox 17 to operate, the output shaft of the reduction gearbox 17 drives the bevel gear steering gear 18 to operate, and then the output shaft of the bevel gear steering gear 18 drives the drive roller 14 to rotate. Through the friction between the drive roller 14 and the wheel, the wheel is driven to rotate in cooperation with the driven roller 15.
[0034] Braking force sensors 23 are installed at both ends of the outer support cover 7 and on the bearing seat of the base 1 and the active roller 14. A torque sensor 24 is installed on the outer side of the shaft of the active roller 14.
[0035] When the drive wheels are rotating, the torque on the car wheels can be detected by the torque sensor 24. When the car brake pedal is pressed, the braking force can be detected by the braking force sensor 23.
[0036] Both ends of the inner support cover 3 are equipped with anti-slip ramps 21.
[0037] The anti-slip ramp 21 is used to facilitate the vehicle getting on and off the device and moving between the inner support cover 3 and the outer support cover 7.
[0038] The surfaces of the impact-resistant ramp 20 and the anti-slip ramp 21 are both covered with a rubber anti-slip layer.
[0039] The rubber anti-slip layer is used to increase the friction between the impact ramp 20, the anti-slip ramp 21 and the wheel, thereby preventing slippage.
[0040] Laser sensors 22 are provided on the opposite sides of both sets of adjusting slides 5.
[0041] The distance between the two sets of adjusting slides 5 is measured by the laser sensor 22, which makes it easier to determine the position of the adjusting slides 5.
[0042] The working principle and usage process of this utility model: When using this device, the distance between the two sets of adjusting slide blocks 5 can be adjusted according to the wheelbase of the car to be tested. During adjustment, the adjusting motor 9 is controlled to run, and the adjusting motor 9 drives the lead screw 10 to rotate. Through the transmission between the lead screw 10 and the adjusting slide block 5, the adjusting slide block 5 is moved through the sliding cooperation of the adjusting slide rail 4 and the adjusting slide groove 8, thereby adjusting the distance between the testing devices on the two sets of adjusting slide blocks 5. The distance between the two sets of adjusting slide blocks 5 is measured by the laser sensor 22. While the adjusting slide block 5 moves, the connecting frame 6 drives the outer support cover 7 to move synchronously, while maintaining the coverage of the end of the inner support cover 3, so as not to affect the car's up and down movement. It can quickly and conveniently adjust the distance between the rollers to meet the testing needs of vehicles with different wheelbases. When using this device, the car drives through the anti-slip ramp 21 at one end of the base 1 and the screw plate 2. Above this device, because the outer support cover 7 is also provided with anti-slip ramps 21 at both ends, the car wheels can move stably above the outer support cover 7 and the inner support cover 3. When the wheels move to the through groove 19, the anti-impact ramp 20 allows the car wheels to move more smoothly to the top of the active roller 14 and the driven roller 15, reducing the impact force of the wheels on the testing device and protecting the testing device. When the test starts, the drive motor 16 drives the reduction gearbox 17 to run, and the output shaft of the reduction gearbox 17 drives the bevel gear steering gear 18 to run. Then, the output shaft of the bevel gear steering gear 18 drives the active roller 14 to rotate. Through the friction between the active roller 14 and the wheel, with the cooperation of the driven roller 15, the wheel is driven to rotate. The torque sensor 24 can detect the torque on the car wheels. When the car brake pedal is pressed, the braking force can be detected by the braking force sensor 23.
[0043] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0044] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.
Claims
1. A braking effect experimental device, characterized in that: The system includes a base (1), a screw plate (2) on the side of the base (1), an inner support cover (3) on the top of the base (1), an adjusting slide rail (4) on the top of the base (1), the adjusting slide rail (4) being slidably connected to the adjusting slide groove (8) at the bottom of the adjusting slide (5), a connecting frame (6) on the side of the adjusting slide (5), one end of the connecting frame (6) being connected to the outer support cover (7), an adjusting motor (9) on the top of the base (1), the output shaft of the adjusting motor (9) being connected to the lead screw (10), the lead screw (10) being threadedly connected to the adjusting slide (5), an axle load sensor (11) on the top of the adjusting slide (5), a testing device on the top of the axle load sensor (11), a through groove (19) between the top and bottom of the outer support cover (7), and an anti-impact ramp (20) on the inner side of the through groove (19).
2. The braking effect experimental device according to claim 1, characterized in that: The testing device includes a mounting base (12), on the top of which are two sets of roller mounting frames (13). The inner sides of the two sets of roller mounting frames (13) are respectively equipped with a driving roller (14) and a driven roller (15). A drive motor (16) is mounted on the top of the mounting base (12). The output end of the drive motor (16) is connected to the input shaft of the gearbox (17). The output shaft of the gearbox (17) is connected to the input shaft of the bevel gear steering gear (18). The output shaft of the bevel gear steering gear (18) is connected to one end of the driving roller (14).
3. The braking effect experimental device according to claim 2, characterized in that: Braking force sensors (23) are installed at both ends of the outer support cover (7), the base (1), and the bearing seat of the active roller (14). A torque sensor (24) is installed on the outer side of the shaft of the active roller (14).
4. The braking effect experimental device according to claim 1, characterized in that: Both ends of the inner support cover (3) are provided with anti-slip ramps (21).
5. The braking effect experimental device according to claim 4, characterized in that: The surfaces of the impact-resistant ramp (20) and the anti-slip ramp (21) are both covered with a rubber anti-slip layer.
6. The braking effect experimental device according to claim 1, characterized in that: Laser sensors (22) are provided on the opposite side of both sets of adjustment slides (5).