Automobile brake table

Abstract

The utility model relates to an automobile brake platform, and relates to the technical field of automobile detection, the automobile brake platform comprises a pedestal and a roller, the roller is rotatably connected with the pedestal, the pedestal is provided with a plurality of holes along the length direction of the roller, the holes are arranged on one side of an automobile moving forward, and a limiting device is inserted in the holes and comprises an insertion part and an abutting roller. The insertion part is connected with one opening hole in an inserted mode, the abutting roller is rotationally connected with the insertion part, and the abutting roller is obliquely arranged relative to the roller. According to the device, the obliquely-arranged abutting rollers abut against the front edges of the wheels, continuous deviation of the wheels is avoided through the counter-force effect, and therefore the wheels are limited to the rollers, normal detection is guaranteed, and damage to detection equipment and an automobile is avoided; the abutting rollers are rotationally connected with the insertion parts, the situation that wheels climb over the abutting rollers through friction force to be separated from the roller can be avoided, and safety is improved; and the multiple open holes are formed, so that the position of the limiting device can be conveniently adjusted, and the limiting device can adapt to different vehicle sizes and wheel distances.

Description

Technical Field

[0001] The present application relates to the field of automobile detection technology, and in particular to an automobile brake stand. Background Art

[0002] The automobile brake test bench is a key device used in automobile inspection stations to test the braking performance of automobiles. At present, the automobile brake test benches on the market mainly simulate the road surface through rollers, and the wheels of the automobile roll on the rollers to test the braking distance, braking time and other parameters of the automobile to evaluate the braking performance of the automobile.

[0003] During the process of testing the braking performance of a car, it is usually necessary to drive the car onto a brake bench for testing. However, during the testing process, due to insufficient friction between the tires and the brake bench, the car may slip and run out of the brake bench, which not only affects the test, but may also cause damage to the testing equipment and the car itself. Utility Model Content

[0004] The present application provides an automobile brake stand, which can prevent the wheels from slipping and rushing out of the brake stand, thereby ensuring that the detection can be carried out normally and avoiding damage to the detection equipment and the automobile itself.

[0005] The present application provides an automobile brake stand, which adopts the following technical solution:

[0006] A vehicle brake stand comprises a stand and a roller, wherein the roller is rotatably connected to the stand, a plurality of openings are provided on the stand along the length direction of the roller, the openings are provided on the side where the vehicle moves forward, a limiting device is inserted into the openings, the limiting device comprises an inserting portion and an abutting roller, the inserting portion is plugged into one of the openings, the abutting roller is rotatably connected to the inserting portion, and the abutting roller is arranged obliquely to the roller.

[0007] By adopting the above technical solution, according to the size of the vehicle and the distance between the wheels, the personnel select an opening to insert the limit device so that the contact roller is close to the outside of the corresponding wheel. The wheel is braked on the drum. If the wheel deviates to one side in the length direction of the drum, the inclined contact roller abuts the front edge of the wheel and prevents the wheel from further deviating through the reaction force, thereby limiting the wheel on the drum, thereby ensuring that the test can be carried out normally and avoiding damage to the test equipment and the car itself.

[0008] Optionally, the axis of the abutment roller is inclined to a horizontal plane, and one end of the abutment roller away from the insertion portion is inclined upward.

[0009] By adopting the above technical solution, through the abutment roller arranged to be tilted upward, it is more difficult for the wheel to climb over the abutment roller and disengage from the drum, which can provide a better limiting effect for the wheel and improve safety.

[0010] Optionally, the opening is a non-circular hole, the shape of the end of the insertion portion corresponds to the opening, and the insertion portion cannot rotate in the opening.

[0011] By adopting the above technical solution, the insertion part should not rotate in the opening, otherwise the limiting effect will not be achieved. The opening shape of the non-circular hole can prevent the limiting device from rotating at an angle as the wheel is pressed.

[0012] Optionally, the opening is a circular hole, a limiting plate is fixed to the outer wall of the insertion portion, and a plurality of limiting grooves for the limiting plate to be inserted are circumferentially formed on the hole wall of the opening.

[0013] By adopting the above technical solution, the limit plate and the limit groove are plugged in to prevent the insertion part from rotating in the opening; by setting a plurality of limit grooves, personnel can select a limit groove for the limit plate to be inserted, thereby adjusting the angle of the limit device to make the distance between the abutment roller and the wheel more appropriate. This structure makes up for the defects caused by the hole spacing setting to a certain extent.

[0014] Optionally, the bottom end of the limiting plate is higher than the bottom end of the inserting portion.

[0015] By adopting the above technical solution, when personnel need to adjust the angle of the limit device, there is no need to completely pull the insertion part out of the opening. The limit device can be rotated by simply lifting the limit plate away from the limit groove, thereby avoiding the problem of the insertion part being difficult to align when reinserting into the opening and the limit device falling off.

[0016] Optionally, the opening is a circular hole, a connecting key is fixed at the bottom end of the insertion part, a connecting block is provided in the base, a key slot for inserting the connecting key is provided on the connecting block, a pressure sensor is fixed on one side of the connecting block, and the other end of the pressure sensor is abutted against the inner wall of the base.

[0017] By adopting the above technical solution, the insertion part can drive the connecting block to rotate by plugging the connecting key into the key slot. During the test, when the wheel hits the abutment roller, the force received by the abutment roller is transmitted to the connecting block through the insertion part. This force acts on the pressure sensor. The force of the wheel squeezing the abutment wheel can be detected through the pressure sensor, so that new test data can be obtained to provide a reference for the test results.

[0018] Optionally, a slide groove is provided in the base along the arrangement direction of the openings, and a circular block is fixed to the bottom of the connecting block, and the circular block is slidably connected to the slide groove.

[0019] By adopting the above technical solution, through the cooperation between the circular block and the slide slot, the connecting block can not only move linearly along the slide slot, but also rotate. By setting a connecting block and a pressure sensor, the detection requirements of different opening positions can be met.

[0020] Optionally, a handle is fixed to the connection block, and a sliding opening for the handle to slide is formed on the outer wall of the base.

[0021] By adopting the above technical solution, a person can drive the connecting block to move by the pull handle, and the sliding opening provides a guiding effect for the movement of the pull handle.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The inclined abutment roller abuts against the front edge of the wheel, and prevents the wheel from further deflecting through the reaction force, thereby limiting the wheel on the roller, thereby ensuring that the test can be carried out normally and avoiding damage to the test equipment and the car itself;

[0024] 2. The abutting roller is rotatably connected to the inserting part. When the wheel abuts against the abutting roller, the wheel drives the abutting roller to rotate. Since the friction force of rolling friction is very small, the wheel can be prevented from climbing over the abutting roller and detaching from the drum due to friction force, thereby improving safety;

[0025] 3. By providing a plurality of openings, it is convenient to adjust the position of the limit device to adapt it to different vehicle sizes and wheel spacings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is an overall diagram of an automobile brake stand according to the first embodiment;

[0027] Figure 2 is a partial exploded view of the first embodiment;

[0028] Figure 3 is a partial exploded view of the second embodiment;

[0029] Figure 4 is a partial cross-sectional view of the third embodiment;

[0030] Figure 5 It is a bottom structural diagram of the connection block of the third embodiment.

[0031] Explanation of the accompanying drawings: 1. Base; 2. Roller; 3. Opening; 4. Limiting device; 41. Insertion part; 42. Abutment roller; 43. Limiting plate; 31. Limiting groove; 44. Connecting key; 11. Slide groove; 5. Connecting block; 51. Round block; 52. Keyway; 6. Pressure sensor; 53. Handle; 12. Slide mouth. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings.

[0033] Embodiment 1:

[0034] Reference Figure 1This embodiment discloses an automobile brake stand, including a stand 1 and a roller 2, the roller 2 is rotatably connected to the stand 1, and the lower part of the stand 1 is embedded in the ground for installation, so that the top surface of the stand 1 is close to the height of the ground, so that the vehicle can drive onto the stand 1. There are two pairs of rollers 2, corresponding to the left and right front wheels or the left and right rear wheels of the car respectively. When performing a brake test, the wheel is mounted on a pair of rollers 2, and the rotation of the rollers 2 can drive the wheel to rotate. The structure and detector for driving the rollers 2 to rotate in the stand 1 are prior art and will not be described in detail here.

[0035] Reference Figure 1 and Figure 2 A plurality of openings 3 are provided on the pedestal 1 along the length direction of the drum 2. The openings 3 are provided on the side where the car moves forward, and a limiting device 4 is inserted in the openings 3. The limiting device 4 includes an inserting portion 41 and an abutting roller 42. The inserting portion 41 is plugged into one of the openings 3. The inserting portion 41 can be pulled out of the opening 3 and switched to another opening 3, thereby adjusting the position of the limiting device 4 in the axial direction of the drum 2. The abutting roller 42 is rotatably connected to the inserting portion 41. The abutting roller 42 is sleeved outside the inserting portion 41, and the two are rotatably connected through a bearing.

[0036] The inserting portion 41 is a bent metal rod, and the upper end of the inserting portion 41 is bent so that the contact roller 42 is inclined to the drum 2, and the axis of the contact roller 42 is inclined to the horizontal plane, and the end of the contact roller 42 away from the inserting portion 41 is inclined upward. When the edge of the wheel contacts the contact roller 42, the inclined contact roller 42 exerts a reaction force on the wheel to prevent the wheel from detaching from the drum 2.

[0037] The opening 3 is a non-circular hole, and the shape of the end of the inserting portion 41 corresponds to the opening 3, so the inserting portion 41 cannot rotate in the opening 3. The opening 3 of this embodiment is a waist-shaped hole, and other holes of different shapes can also be provided. It is necessary to prevent the limiting device 4 from rotating at an angle as the wheel is pressed, otherwise the limiting effect will not be achieved, so the inserting portion 41 should not rotate in the opening 3.

[0038] The implementation principle of a vehicle brake stand in the embodiment of the present application is as follows: according to the size of the vehicle and the spacing between the wheels, a person selects an opening 3 to insert the limiting device 4 so that the abutting roller 42 is close to the outer side of the corresponding wheel. The wheel is subjected to a braking test on the drum 2. If the wheel deviates to one side in the length direction of the drum 2, the inclined abutting roller 42 abuts against the front edge of the wheel, and prevents the wheel from continuing to deviate through the reaction force, thereby limiting the wheel on the drum 2, thereby ensuring that the detection can be carried out normally and avoiding damage to the detection equipment and the car itself. Since the abutting roller 42 is rotatably connected to the insertion part 41, after the wheel abuts against the abutting roller 42, the wheel drives the abutting roller 42 to rotate. Since the friction force of rolling friction is very small, it can prevent the wheel from climbing over the abutting roller 42 and detaching from the drum 2 through friction, thereby improving safety.

[0039] Embodiment 2:

[0040] Reference Figure 3 The difference between the second embodiment and the first embodiment is that the opening 3 is a circular hole, a limiting plate 43 is fixed to the outer wall of the insertion part 41, and a plurality of limiting grooves 31 for the limiting plate 43 to be inserted are formed along the circumferential direction of the hole wall of the opening 3, and the bottom end of the limiting plate 43 is higher than the bottom end of the insertion part 41.

[0041] The implementation principle of Example 2 is: since the openings 3 are arranged at intervals, the position of the limit device 4 cannot be infinitely adjusted, and there is a limitation. Through the combination of the limit plate 43 and the limit groove 31, personnel can select a limit groove 31 for the limit plate 43 to be inserted, thereby adjusting the angle of the limit device 4 to make the distance between the abutment roller 42 and the wheel more appropriate. This structure makes up for the defects caused by the interval arrangement of the openings 3 to a certain extent.

[0042] By setting the bottom end of the limit plate 43 higher than the bottom end of the insertion part 41, when personnel need to adjust the angle of the limit device 4, there is no need to completely pull the insertion part 41 out of the opening 3. The limit device 4 can be rotated by simply lifting the limit plate 43 off the limit groove 31, thereby avoiding the problem of difficulty in aligning the insertion part 41 when reinserting into the opening 3 and the limit device 4 falling off.

[0043] Embodiment three:

[0044] Reference Figure 4 and Figure 5 The difference between the third embodiment and the first embodiment is that the opening 3 is a circular hole, and the insertion part 41 can rotate in the opening 3. A connecting key 44 is fixed at the bottom end of the insertion part 41, and a slide groove 11 is provided in the base 1 along the arrangement direction of the opening 3. A connecting block 5 is provided in the base 1, and a circular block 51 is fixed at the bottom of the connecting block 5. The circular block 51 is slidably connected with the slide groove 11. Through the cooperation of the circular block 51 and the slide groove 11, the connecting block 5 can not only move linearly along the slide groove 11, but also rotate.

[0045] A key slot 52 for the connection key 44 to be inserted is provided on the top surface of the connection block 5. A pressure sensor 6 is fixed to one side of the connection block 5, and the other end of the pressure sensor 6 abuts against the inner wall of the pedestal 1. A pull handle 53 is fixed to the connection block 5, and a sliding opening 12 for the pull handle 53 to slide is provided on the outer wall of the pedestal 1. The pull handle 53 is L-shaped and is arranged close to the outer wall of the pedestal 1, but the vertical section of the pull handle 53 does not contact the side wall of the pedestal 1. The upper end of the pull handle 53 is located near the top surface of the pedestal 1, so that people can slide the connection block 5 through the pull handle 53.

[0046] The implementation principle of the third embodiment is as follows: a person can drive the connection block 5 to move by pulling the handle 53, so that the key slot 52 is located directly below the desired opening 3, and the pressure sensor 6 also moves with the connection block 5, and then the connection key 44 at the bottom of the insertion portion 41 is inserted into the key slot 52 after passing through the opening 3. During the test, when the wheel hits the abutment roller 42, the abutment roller 42 transmits the force to the connection block 5 through the insertion portion 41 and the connection key 44, and the force acts on the pressure sensor 6. Then, the force of the wheel pressing on the abutment wheel can be detected by the pressure sensor 6, and new test data can be obtained to provide a reference for the test results. Since the deformation of the pressure sensor 6 due to compression is very small, it does not affect the limiting effect of the limiting device 4 on the wheel.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automobile brake stand, comprising a stand (1) and a roller (2), wherein the roller (2) is rotatably connected to the stand (1), characterized in that: The pedestal (1) is provided with a plurality of openings (3) along the length direction of the roller (2), the openings (3) being provided on the side where the vehicle moves forward, and a limiting device (4) being inserted into the openings (3), the limiting device (4) comprising an inserting portion (41) and an abutting roller (42), the inserting portion (41) being plugged into one of the openings (3), the abutting roller (42) being rotatably connected to the inserting portion (41), and the abutting roller (42) being arranged to be inclined relative to the roller (2).

2. The automobile brake stand according to claim 1, characterized in that: The axis of the contact roller (42) is inclined to a horizontal plane, and one end of the contact roller (42) away from the insertion portion (41) is inclined upward.

3. The automobile brake stand according to claim 1, characterized in that: The opening (3) is a non-circular hole, the shape of the end of the insertion portion (41) corresponds to the opening (3), and the insertion portion (41) cannot rotate in the opening (3).

4. The automobile brake stand according to claim 1, characterized in that: The opening (3) is a circular hole, a limiting plate (43) is fixed to the outer wall of the insertion portion (41), and a plurality of limiting grooves (31) for the limiting plate (43) to be inserted are formed in the circumferential direction on the hole wall of the opening (3).

5. The automobile brake stand according to claim 4, characterized in that: The bottom end of the limiting plate (43) is higher than the bottom end of the inserting portion (41).

6. The automobile brake stand according to claim 1, characterized in that: The opening (3) is a circular hole, a connecting key (44) is fixed at the bottom end of the insertion portion (41), a connecting block (5) is arranged inside the pedestal (1), a key slot (52) is provided on the connecting block (5) for inserting the connecting key (44), a pressure sensor (6) is fixed on one side of the connecting block (5), and the other end of the pressure sensor (6) is in contact with the inner wall of the pedestal (1).

7. The automobile brake stand according to claim 6, characterized in that: A slide groove (11) is provided in the base (1) along the arrangement direction of the openings (3); a circular block (51) is fixed to the bottom of the connecting block (5); and the circular block (51) is slidably connected to the slide groove (11).

8. The automobile brake stand according to claim 7, characterized in that: The connection block (5) is fixed with a pull handle (53), and the outer wall of the base (1) is provided with a sliding opening (12) for the pull handle (53) to slide.

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