A sliding platform structure for detecting braking performance of a motor vehicle

Abstract

The utility model discloses a kind of sliding platform structures for motor vehicle braking performance detection, it is related to motor vehicle detection equipment technical field, including: detection table, two support seats, two mounting seats, sliding plate, connecting mechanism and adjusting mechanism, two symmetrical distribution through-slots are set on the upper side wall of detection table.The utility model is set up connecting mechanism, the quick assembly and disassembly between sliding plate and mounting seat can be realized.When sliding plate needs to be replaced due to abrasion, deformation, without disassembling a large number of fasteners or cutting operation, maintenance personnel only need to complete the replacement of sliding plate by the convenient operation of connecting mechanism, greatly shorten the replacement working hours of sliding plate, reduce the labor intensity of maintenance personnel and equipment overall maintenance cost;Through the adjusting mechanism set, the spacing between the two sliding plates can be flexibly adjusted according to the axle distance difference of different vehicle models, the application range of sliding platform is expanded, and the versatility of the equipment is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of motor vehicle testing equipment, specifically a sliding platform structure for testing the braking performance of motor vehicles. Background Technology

[0002] Braking performance testing is a crucial step in ensuring vehicle safety during motor vehicle production, repair, and annual inspection. The sliding platform, as a core component of braking performance testing equipment, directly impacts the accuracy of test results and the efficiency of the testing process. The sliding platform mainly consists of a testing platform and a sliding plate. The sliding plate allows the vehicle tires to contact the platform to simulate actual road conditions during driving, and works in conjunction with sensors and other components to collect braking performance data.

[0003] Chinese patent application number CN202323607052.9 discloses a vehicle sideslip braking performance testing device, including a testing platform, two sliding plates fixedly connected to the top of the testing platform, a support component provided at the bottom of the testing platform, a transmission component provided inside the testing platform, an unfolding component provided outside the transmission component, and a positioning component provided at the bottom of the testing platform. The transmission component drives the unfolding component to operate, and the testing platform drives the positioning component to operate.

[0004] The aforementioned existing technologies suffer from two major problems during long-term use: First, the sliding plate, due to long-term friction with tires and impact from vehicle weight, is prone to wear and deformation, requiring periodic replacement to ensure testing accuracy. However, current connections between the sliding plate and the mounting base often employ complex structures such as bolt fixing or welding. Replacement requires the use of specialized tools to disassemble numerous fasteners, and some welded structures even require cutting and separation. This cumbersome and time-consuming process not only affects the normal turnover of the testing equipment but also increases the labor intensity of maintenance personnel and equipment maintenance costs. Second, wheelbases vary significantly among different vehicle models such as sedans, SUVs, and light trucks. The sliding plate positions of existing sliding platforms are mostly fixed at the factory and cannot be flexibly adjusted according to the wheelbase of the vehicle being tested. When testing different wheelbase models, a dedicated sliding platform adapted to the wheelbase must be used, or the existing platform must be extensively modified. This not only increases the equipment purchase and operating costs for the testing organization but also greatly limits the applicability of the sliding platform, making it difficult to meet the diverse needs of motor vehicle braking performance testing. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a sliding platform structure for testing the braking performance of motor vehicles.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sliding platform structure for testing the braking performance of motor vehicles, comprising:

[0007] The testing table has two symmetrically distributed through slots on its upper side wall;

[0008] Two support seats are fixedly installed on the lower inner wall of the testing table and are symmetrically distributed.

[0009] Two mounting bases, both of which are slidably disposed between two support bases;

[0010] A sliding plate, which is detachably connected to the mounting base, and the upper surface of the sliding plate is flush with the through groove;

[0011] The connecting mechanism has a snap-fit ​​part disposed in the mounting base and a limiting part disposed on both sides of the mounting base. The connecting mechanism can quickly complete the assembly and disassembly of the sliding plate and the mounting base.

[0012] An adjustment mechanism is provided inside the testing platform. The adjustment mechanism is used to adjust the distance between two sliding plates to adapt to the wheelbase of different vehicle models.

[0013] Preferably, the snap-fit ​​part includes a mounting groove formed inside the mounting base. Two sliding grooves are symmetrically formed on the lower side wall of the mounting groove. A pawl is slidably provided in the sliding groove. Two return springs are symmetrically provided between the side wall of the two sliding grooves that are close to each other and the pawl. A connecting rod is fixedly connected to the side wall of the pawl away from the return spring. The other end of the connecting rod extends to the outside of the mounting base and is rotatably connected to a limiting plate. A knob is fixedly connected to one side wall of the limiting plate.

[0014] Preferably, the limiting part includes two sets of support rods respectively fixedly installed on the two side walls of the mounting base. Each set of support rods consists of two rods symmetrically distributed on both sides of the connecting rod. A baffle is fixedly connected between the other ends of the two support rods. The baffle has a slot through which the limiting plate can pass.

[0015] Preferably, the adjustment mechanism includes a drive block fixedly mounted on the bottom wall of the mounting base, a bidirectional screw rotatably mounted between the inner walls of both sides of the testing platform, the drive block being threaded onto the bidirectional screw, and a drive motor mounted on one outer wall of the testing platform, the output shaft of the drive motor being fixedly connected to one end of the bidirectional screw.

[0016] Preferably, a connecting seat adapted to the mounting groove is fixedly connected to the bottom wall of the sliding plate, and a slot adapted to the claw is provided on both inner walls of the connecting seat.

[0017] Preferably, a guide groove is provided on the upper side wall of the support base, and a guide rail adapted to the guide groove is fixedly connected to the bottom wall of the mounting base.

[0018] Preferably, a baffle plate is fixedly connected to both sides of the sliding plate.

[0019] Preferably, a protective shell is fixedly connected to one side of the outer wall of the testing station, and the protective shell covers the outside of the drive motor.

[0020] Preferably, two inspection doors are provided on each of the two side walls of the testing platform.

[0021] Preferably, the upper surface of the sliding plate is provided with a wear-resistant layer, which is a high molecular weight polyethylene layer.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. The connecting mechanism enables quick assembly and disassembly between the sliding plate and the mounting base. When the sliding plate needs to be replaced due to wear or deformation, there is no need to disassemble a large number of fasteners or perform cutting operations. Maintenance personnel can replace the sliding plate simply by using the convenient operation of the connecting mechanism, which greatly shortens the replacement time of the sliding plate, reduces the labor intensity of maintenance personnel, and lowers the overall maintenance cost of the equipment.

[0024] 2. The adjustable mechanism allows for flexible adjustment of the distance between the two sliding plates according to the wheelbase differences of different vehicle models, expanding the applicability of the sliding platform and improving the versatility of the equipment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a sliding platform for testing the braking performance of a motor vehicle according to the present invention.

[0026] Figure 2 This is a schematic diagram of the internal structure of a sliding platform for testing the braking performance of a motor vehicle, according to this utility model.

[0027] Figure 3 This is a schematic diagram of the mounting base structure of a sliding platform for testing the braking performance of a motor vehicle according to the present invention;

[0028] Figure 4 This is a schematic diagram of the snap-fit ​​structure of a sliding platform for testing the braking performance of a motor vehicle according to the present invention;

[0029] Figure 5 This is a schematic diagram of the limiting part of a sliding platform structure for testing the braking performance of a motor vehicle according to the present invention;

[0030] Figure 6This is a schematic diagram of the sliding plate structure of a sliding platform for testing the braking performance of a motor vehicle according to the present invention;

[0031] Figure 7 This is a schematic diagram of the adjustment mechanism of a sliding platform structure for testing the braking performance of a motor vehicle, according to this utility model.

[0032] In the diagram: 1. Testing table; 11. Through groove; 2. Support base; 3. Mounting base; 4. Sliding plate; 5. Connecting mechanism; 51. Snap-fit ​​part; 52. Limiting part; 6. Adjusting mechanism; 511. Mounting groove; 512. Slide groove; 513. Claw; 514. Return spring; 515. Connecting rod; 516. Limiting plate; 517. Knob; 521. Support rod; 522. Baffle; 523. Groove; 61. Driving block; 62. Bidirectional screw; 63. Drive motor; 41. Connecting base; 42. Slot; 31. Guide rail; 43. Baffle plate; 7. Protective shell; 12. Inspection door. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0034] The embodiments of this utility model will be described below based on its overall structure.

[0035] Please see Figures 1 to 3 A sliding platform structure for testing the braking performance of motor vehicles includes: a testing platform 1, two support seats 2, two mounting seats 3, a sliding plate 4, a connecting mechanism 5, and an adjusting mechanism 6. The testing platform 1 is a rectangular metal frame structure and serves as the basic load-bearing component of the entire device. Two symmetrically distributed through slots 11 are formed on its upper sidewall, allowing the upper surface of the sliding plate 4 to be exposed for contact with the motor vehicle tire. The two support seats 2 are elongated metal blocks, bolted to the lower inner wall of the testing platform 1 and symmetrically distributed, supporting the mounting seats 3 and providing a foundation for the sliding track. The two mounting seats 3 are rectangular metal bases, slidably positioned between the two support seats 2, serving as the direct mounting carrier for the sliding plate 4. The sliding plate 4 is a metal panel structure, detachably connected to the mounting seats 3 via the connecting mechanism 5. Its upper end passes through the through slots 11, and its upper surface is flush with the upper surface of the testing platform 1, ensuring stable contact with the motor vehicle tire and simulating actual road conditions. The connecting mechanism 5 consists of a snap-fit ​​part 51 located inside the mounting base 3 and limiting parts 52 on both sides of the mounting base 3. It is the core mechanism for enabling quick assembly and disassembly of the sliding plate 4. The adjusting mechanism 6 is embedded inside the testing table 1 and connected to the mounting base 3. It is used to drive the two mounting bases 3 to move synchronously, thereby adjusting the distance between the two sliding plates 4.

[0036] Please see Figure 4 The engaging part 51 includes a mounting groove 511, a sliding groove 512, a claw 513, a return spring 514, a connecting rod 515, a limiting plate 516, and a knob 517. The mounting groove 511 is a rectangular groove formed on the upper surface of the mounting base 3, its size matching the connecting seat 41 at the bottom of the sliding plate 4, used to accommodate the connecting seat 41. The sliding groove 512 consists of two symmetrical strip-shaped grooves formed on the lower sidewall of the mounting groove 511, their inner diameter matching the outer diameter of the claw 513, allowing the claw 513 to slide horizontally. The claw 513 is an L-shaped metal block, two in number, slidably disposed within the two sliding grooves 512, one end of which can extend out of the sliding groove 512 and embed into the slot 42 of the connecting seat 41 to achieve locking and fixation. The return spring 514 is a cylindrical helical spring, fixed between the side wall of the two adjacent slides 512 and the pawl 513. In its natural state, it is in an extended position, pushing the pawl 513 away from the center of the mounting groove 511, keeping the outer end of the pawl 513 extended out of the slide 512 in its initial state. The connecting rod 515 is a cylindrical metal rod, one end welded to the side wall of the pawl 513 away from the return spring 514, and the other end extending outward through the side wall of the mounting base 3. It transmits the pushing force of the knob 517, pushing the pawl 513 towards the center of the mounting groove 511. The limiting plate 516 is a rectangular metal plate, rotatably connected to the outer end of the connecting rod 515, used to cooperate with the baffle 522 of the limiting part 52 to achieve limiting and fixing. The knob 517 is a circular metal knob, fixed to the side wall of the limiting plate 516 away from the connecting rod 515, for the operator to grip and apply pushing or rotating force.

[0037] Please see Figure 5 The limiting part 52 includes a support rod 521, a baffle 522, and a slot 523. The support rod 521 is a cylindrical metal rod, with two rods in each group, for a total of two groups. These rods are welded and fixed to the two side walls of the mounting base 3, symmetrically distributed on both sides of the connecting rod 515, and are used to support the baffle 522. The baffle 522 is a rectangular metal plate, welded and fixed to the outer ends of each group of two support rods 521, parallel to the side wall of the mounting base 3. It is used to restrict the movement of the connecting rod 515 during unlocking, thus freeing up a hand to unlock the claw 513 on the other side of the mounting base 3. The slot 523 is a rectangular notch opened in the center of the baffle 522. Its width matches the width of the limiting plate 516, and its length is slightly greater than the length of the limiting plate 516, allowing the limiting plate 516 to pass through and rotate to abut against the baffle 522.

[0038] Please see Figure 7The adjusting mechanism 6 includes a drive block 61, a bidirectional screw 62, and a drive motor 63. The drive block 61 is a rectangular metal block, two in number, welded and fixed to the center of the bottom wall of the two mounting bases 3 respectively. It has threaded holes inside, with a pitch matching the pitch of the bidirectional screw 62. The bidirectional screw 62 is a cylindrical metal rod with two sections of threads in opposite directions machined on its outer surface. Both ends are rotatably connected to the inner walls of both sides of the testing platform 1 via bearings. The two drive blocks 61 are threaded onto the two sections of opposite threads. The drive motor 63 is a servo motor, capable of precisely controlling speed and direction. It is bolted to the outer wall of one side of the testing platform 1, and its output shaft is fixedly connected to one end of the bidirectional screw 62 via a coupling, allowing the bidirectional screw 62 to rotate clockwise or counterclockwise.

[0039] Please see Figure 6 A connecting seat 41, which is adapted to the mounting groove 511, is fixedly connected to the bottom wall of the sliding plate 4. The size of the connecting seat 41 is adapted to the mounting groove 511 of the mounting seat 3, and it can be completely embedded in the mounting groove 511 to achieve horizontal positioning of the sliding plate 4. The inner walls on both sides of the connecting seat 41 are provided with slots 42 that are adapted to the claws 513. The positions of these slots correspond to the positions of the claws 513 in the mounting groove 511, and the sizes of these slots are adapted to the outer ends of the claws 513 that extend out of the sliding groove 512, so that the claws 513 can be embedded.

[0040] Please see Figure 3 The upper side wall of the support base 2 has a guide groove with a T-shaped cross-section. A guide rail 31, adapted to the guide groove, is fixedly connected to the bottom wall of the mounting base 3. The guide rail 31, with a cross-sectional shape matching the guide groove, can be embedded in and slide along the groove. This provides guidance and limitation for the sliding of the mounting base 3, ensuring stability during adjustment. When the adjusting mechanism 6 moves the mounting base 3, the guide rail 31 slides along the guide groove, preventing the mounting base 3 from shifting, tilting, or wobbling up and down, ensuring that the two mounting bases 3 always move in parallel, thereby guaranteeing accurate adjustment of the distance between the sliding plates 4 and avoiding detection errors.

[0041] Please see Figure 1 Two rectangular metal plates, each consisting of a baffle plate 43, are fixedly connected to both sides of the sliding plate 4 and are bolted to each other. These baffle plates are used to prevent foreign objects from entering the testing station 1 during the testing process.

[0042] Please see Figure 2 A protective shell 7 is fixedly connected to one side of the outer wall of the testing platform 1. The protective shell 7 covers the outside of the drive motor 63. The protective shell 7 is a rectangular metal shell with heat dissipation holes. It is fixed to the outer wall of one side of the testing platform 1 by bolts, completely covering the drive motor 63, protecting the drive motor 63 from external damage and environmental influences, blocking collisions, dust and water stains at the testing site, preventing dust from entering the motor and affecting its insulation performance, preventing water stains from splashing in and causing short circuits, extending the service life of the drive motor 63, and ensuring the stable drive of the adjustment mechanism 6.

[0043] Please see Figure 1 Two maintenance doors 12 are provided on both sides of the testing platform 1. The maintenance doors 12 are metal door panels that are connected to the side walls of the testing platform 1 by hinges and have door locks that can be opened and closed manually.

[0044] Please see Figure 1 The upper surface of the sliding plate 4 is provided with a wear-resistant layer, which is a high molecular weight polyethylene layer. It is bonded to the upper surface of the sliding plate 4 by hot pressing process. It has high strength, high wear resistance, low coefficient of friction and acid and alkali corrosion resistance, thus extending the service life of the sliding plate 4.

[0045] Working principle: During use, the two sliding plates 4 are adjusted according to the wheelbase of the vehicle to be tested. During adjustment, the drive motor 63 drives the bidirectional screw 62 to rotate. The reverse thread of the bidirectional screw 62 drives the two driving blocks 61 to move synchronously in opposite directions, thereby driving the mounting base 3 to slide along the guide groove of the support base 2. By observing the preset spacing scale (not shown in the figure) on the upper surface of the test bench 1, when the distance between the two sliding plates 4 reaches the target value, the drive motor 63 is turned off, the bidirectional screw 62 stops rotating, the mounting base 3 and the sliding plate 4 are fixed in position, and then the test can be performed. When it is necessary to replace the sliding plate 4, open the maintenance door 12, and then hold the knob 517 to push the limit plate 516 to move. When the limit plate 516 passes through the slot 523 and then through the baffle 522, rotate 90° clockwise until the long side of the limit plate 516 is perpendicular to the long side of the baffle 522. At this time, the connecting rod 515 cannot spring back, and the position of the pawl 513 is limited. During the process of pushing the limiting plate 516, the pushing force is transmitted through the connecting rod 515, causing the pawl 513 to move towards the center of the mounting groove 511, compressing the return spring 514, until the outer end of the pawl 513 is completely disengaged from the groove 42. Then, the pawl 513 on the other side is unlocked in the same way, and the old sliding plate 4 can be removed. When installing the new sliding plate 4, align the connecting seat 41 at the bottom of the sliding plate 4 with the mounting groove 511 of the mounting seat 3, and press down slowly so that the connecting seat 41 is embedded in the mounting groove 511. Then, turn the knob 517 to drive the limiting plate 516 to reverse, so that it can be reset through the slot 523. At this time, under the push of the return spring 514, the pawl 513 moves away from the center of the mounting groove 511, and the outer end of the pawl 513 is embedded in the groove 42, completing the engagement.

[0046] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sliding platform structure for testing the braking performance of motor vehicles, characterized in that, include: The testing table (1) has two symmetrically distributed through slots (11) on its upper side wall. Two support seats (2) are fixedly installed on the lower inner wall of the testing table (1) and are symmetrically distributed; Two mounting bases (3) are slidably disposed between two support bases (2); A sliding plate (4) is detachably connected to a mounting base (3), and the upper surface of the sliding plate (4) is flush with the through groove (11); The connecting mechanism (5) has a snap-fit ​​part (51) provided in the mounting base (3) and a limiting part (52) provided on both sides of the mounting base (3). The connecting mechanism (5) can quickly complete the disassembly and assembly between the sliding plate (4) and the mounting base (3). Adjustment mechanism (6) is set inside the test bench (1). The adjustment mechanism (6) is used to adjust the distance between the two sliding plates (4) to adapt to the wheelbase of different models.

2. The sliding platform structure for testing the braking performance of a motor vehicle according to claim 1, characterized in that: The latching part (51) includes a mounting groove (511) inside the mounting base (3). Two sliding grooves (512) are symmetrically provided on the lower side wall of the mounting groove (511). A claw (513) is slidably provided in the sliding groove (512). Two return springs (514) are symmetrically provided between the side wall of the two sliding grooves (512) that are close to each other and the claw (513). A connecting rod (515) is fixedly connected to the side wall of the claw (513) away from the return spring (514). The other end of the connecting rod (515) extends to the outside of the mounting base (3) and is rotatably connected to a limiting plate (516). A knob (517) is fixedly connected to one side wall of the limiting plate (516).

3. The sliding platform structure for testing the braking performance of a motor vehicle according to claim 2, characterized in that: The limiting part (52) includes two sets of support rods (521) fixedly installed on the two side walls of the mounting base (3). Each set of support rods (521) consists of two rods and is symmetrically distributed on both sides of the connecting rod (515). A baffle (522) is fixedly connected between the other ends of the two support rods (521). The baffle (522) has a slot (523) through which the limiting plate (516) can pass.

4. The sliding platform structure for testing the braking performance of a motor vehicle according to claim 1, characterized in that: The adjustment mechanism (6) includes a drive block (61) fixedly mounted on the bottom wall of the mounting base (3), a bidirectional screw (62) rotatably mounted between the inner walls of both sides of the testing platform (1), the drive block (61) being threaded onto the bidirectional screw (62), and a drive motor (63) mounted on the outer wall of one side of the testing platform (1), the output shaft of the drive motor (63) being fixedly connected to one end of the bidirectional screw (62).

5. The sliding platform structure for testing the braking performance of a motor vehicle according to claim 2, characterized in that: The bottom wall of the sliding plate (4) is fixedly connected to a connecting seat (41) that is compatible with the mounting groove (511). The inner walls on both sides of the connecting seat (41) are provided with slots (42) that are compatible with the claws (513).

6. The sliding platform structure for testing the braking performance of a motor vehicle according to claim 3, characterized in that: The upper side wall of the support base (2) is provided with a guide groove, and the bottom wall of the mounting base (3) is fixedly connected with a guide rail (31) that is compatible with the guide groove.

7. The sliding platform structure for testing the braking performance of a motor vehicle according to claim 1, characterized in that: Both sides of the sliding plate (4) are fixedly connected with baffle plates (43).

8. The sliding platform structure for testing the braking performance of a motor vehicle according to claim 4, characterized in that: A protective shell (7) is fixedly connected to one side of the outer wall of the testing station (1), and the protective shell (7) covers the outside of the drive motor (63).

9. The sliding platform structure for testing the braking performance of a motor vehicle according to claim 1, characterized in that: The testing platform (1) has two inspection doors (12) on both sides of its side walls.

10. The sliding platform structure for testing the braking performance of a motor vehicle according to claim 1, characterized in that: The upper surface of the sliding plate (4) is provided with a wear-resistant layer, which is a high molecular weight polyethylene layer.

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