Automobile brake detection device

Abstract

The present invention relates to the field of automobile inspection technology, and more specifically, to an automobile brake inspection device, comprising a inspection assembly, a wheel edge support, and a driven member. The inspection assembly comprises a fixed bracket, at least two rollers, and a drive motor, wherein the at least two rollers are coaxially arranged parallel to the ground, and each roller has one end rotatably connected to the fixed bracket and the other end connected to the output shaft of the drive motor. The wheel edge support is arranged on both sides of the roller, and is used to support the wheels of the inspected vehicle and bring them into contact with the roller. The driven member is arranged between the wheel edge support and the roller, and is used to keep the wheel in a driven state when the roller rotates and drives the wheel. The present invention can measure the actual braking performance of the inspected quantity and improve the detection accuracy of the braking performance.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile detection, in particular to an automobile brake detection device. Background Art

[0002] Automotive testing equipment, such as brake test benches, speedometer test benches, chassis dynamometers, and free-roller test benches, all consist of two sets of rollers mounted on a frame. Each set consists of two or three rollers with parallel axes. When a vehicle enters the test bench, the wheels are supported by these two or three parallel rollers, which then brake and rotate them to test braking performance. However, actual research has found that braking performance measured using two or three parallel rollers consistently outperforms actual braking performance, thus affecting the accuracy of braking performance testing. Summary of the Invention

[0003] The object of the present invention is to provide a vehicle brake detection device, which is provided with a left and right group of rollers on a driving motor and a fixed bracket. The left and right groups of rollers are provided with a pair of coaxial rollers. The support of the wheels of the vehicle under inspection is achieved through the wheel edge support part and the follower, and the wheels are kept in a driven state when the rollers rotate and drive the wheels, so as to solve the problem pointed out in the background technology that the braking performance measured by the existing detection method is always better than the actual braking performance, thereby affecting the detection accuracy of the braking performance.

[0004] The detection assembly includes a fixed bracket, at least two rollers and a drive motor. The at least two rollers are parallel to the ground and coaxially arranged, and one end of each roller is rotatably connected to the fixed bracket, and the other end is connected to the output shaft side of the drive motor; the wheel edge support part is arranged on both sides of the roller, and is used to support the wheels of the inspected vehicle entering and make them contact with the roller; the follower is arranged between the wheel edge support part and the roller, and is used to keep the wheel in a driven state when the roller rotates to drive the wheel.

[0005] The embodiment of the present invention is achieved through the following technical solutions: a vehicle brake detection device, the detection device comprising: a detection assembly, a wheel edge support portion, and a follower;

[0006] The detection assembly includes a fixed bracket, at least two rollers and a drive motor. The at least two rollers are parallel to the ground and coaxially arranged, and one end of each roller is rotatably connected to the fixed bracket, and the other end is connected to the output shaft side of the drive motor; the wheel edge support part is arranged on both sides of the roller, and is used to support the wheels of the inspected vehicle entering and make them contact with the roller; the follower is arranged between the wheel edge support part and the roller, and is used to keep the wheel in a driven state when the roller rotates to drive the wheel.

[0007] According to a preferred embodiment, the wheel edge support portion is composed of a rotating member and two support portions connected to the rotating member and symmetrically arranged. The rotating member is arranged below the drum to support the vertical displacement of the two support portions.

[0008] According to a preferred embodiment, the detection device has a mounting groove for mounting a wheel edge support portion, the mounting groove has a first inclined surface for mounting one of the two support portions and a second inclined surface for mounting the other support portion, the first inclined surface and the second inclined surface are both arranged at an obtuse angle to the bottom of the mounting groove and are symmetrical to each other.

[0009] According to a preferred embodiment, each support portion includes: a slide rail, a sliding member, a follower mounting seat, a first support member, and a second support member;

[0010] The cam is fixedly mounted on the support frame, and the cam is adapted to move the cam forwardly to move the guide rails relative to the support frame.

[0011] According to a preferred embodiment, the rotating part also includes a column gear, a gear sleeve and a bearing. The column gear is fixedly connected to the bottom of the support seat, the gear sleeve is sleeved on the column gear and meshes with the gear sleeve, and the bearing is sleeved on the gear sleeve.

[0012] According to a preferred embodiment, the bottom of the installation groove has an accommodating groove for accommodating the bearing, and the accommodating groove is located in the middle of the bottom of the installation groove.

[0013] According to a preferred embodiment, the detection device further comprises a planetary gear reducer, a reducer mounting flange and a drive flange;

[0014] The power output shaft of the drive motor is fixedly connected to the power input end of the planetary gear reducer, the power output shaft of the planetary gear reducer extends backward from the central cavity of the reducer mounting flange, the front of the drive flange is connected to the power output shaft of the planetary gear reducer, and the rear of the drive flange is connected to the drum.

[0015] According to a preferred embodiment, the detection components are symmetrically arranged, the rear end of each roller extends toward the rear end of the other roller, and the extended end of each roller is provided with an end fixing flange.

[0016] The technical solution of the embodiment of the present invention provides a vehicle brake detection device, which has at least the following advantages and beneficial effects: the present invention arranges left and right groups of rollers on the driving motor and the fixed bracket, and the left and right groups of rollers are provided with a pair of coaxial rollers. The support of the wheels of the vehicle under test is achieved through the wheel edge support part and the follower, and the wheels are kept in a driven state when the rollers rotate and drive the wheels. The actual braking performance of the vehicle under test can be measured, and the detection accuracy of the braking performance can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A top view of an automobile brake detection device provided in Example 1 of the present invention;

[0018] Figure 2 A side view of the mounting slot provided in Example 1 of the present invention;

[0019] Figure 3 A schematic structural diagram of a wheel edge support portion and a follower provided in Example 1 of the present invention;

[0020] Figure 4 A side view of the wheel edge support portion and the follower provided in Example 1 of the present invention;

[0021] Figure 5 A rear view of the wheel edge support portion and the follower provided in Example 1 of the present invention;

[0022] Icon: 1- roller, 2- drive motor, 3- mounting groove, 4- first inclined plane, 5- second inclined plane, 6- groove bottom, 7- slide rail, 8- sliding member, 9- follower mounting seat, 10- first support frame, 11- second support frame, 12- support rod, 13- support seat, 14- threaded sleeve, 15- slide groove, 16- column gear, 17- gear sleeve, 18- bearing, 20- planetary gear reducer, 21- reducer mounting flange, 22- drive flange, 23- end fixing flange, 24- follower. DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0024] Example 1

[0025] See also Figure 1 As shown, Figure 1 This is a top view of an automobile brake detection device provided by an embodiment of the present invention.

[0026] An embodiment of the present invention provides an automobile brake detection device, comprising: a detection assembly, a wheel edge support portion, and a follower 24;

[0027] The detection assembly includes a fixed bracket, at least two rollers 1 and a drive motor 2. The at least two rollers 1 are parallel to the ground and coaxially arranged, and one end of each roller 1 is rotatably connected to the fixed bracket, and the other end is connected to the output shaft side of the drive motor 2; the wheel edge support portion is arranged on both sides of the roller 1, for supporting the wheels of the inspected vehicle entering and making them contact with the roller 1; the follower 24 is arranged between the wheel edge support portion and the roller 1, for keeping the wheel in a driven state when the roller 1 rotates to drive the wheel.

[0028] To sum up, the invention arranges left and right groups of rollers 1 on the driving motor 2 and the fixed bracket, and the left and right groups of rollers 1 are provided with a pair of coaxial rollers 1. The wheel edge support portion and the follower 24 are used to support the wheel of the vehicle under test, and the wheel is kept in a driven state when the roller 1 rotates and drives the wheel. The actual braking performance of the tested quantity can be measured, thereby improving the detection accuracy of the braking performance.

[0029] Further, see Figures 2 to 5 As shown, the wheel edge support portion is composed of a rotating member and two supporting portions connected to the rotating member and symmetrically arranged. The rotating member is arranged below the drum 1 to support the vertical displacement of the two supporting portions.

[0030] Furthermore, the detection device includes a mounting slot 3 for mounting a wheel edge support. This slot 3 has a first inclined surface 4 for mounting one of the two supports, and a second inclined surface 5 for mounting the other support. Both the first inclined surface 4 and the second inclined surface 5 are arranged at an obtuse angle with the bottom 6 of the slot 3 and are symmetrical to each other. This embodiment utilizes the principle of a clamping mechanism to design the wheel edge support. By providing the inclined surface, the wheel edge support, which cooperates with the inclined surface, can adjust the size of the opening at the top of the wheel edge support by moving along the direction of the inclined surface, thereby adapting the device to the detection of wheels of various diameters. Specifically, each support portion includes: a slide rail 7, a sliding member 8, a follower mounting seat 9, a first support member and a second support member; wherein the slide rail 7 extends along the inclined direction of the inclined plane and toward the bottom 6 of the mounting groove 3, the sliding member 8 is slidably arranged on the slide rail 7, the follower mounting seat 9 is arranged on the sliding member 8 and is parallel to the bottom 6 of the mounting groove 3, the follower 24 is mounted on the follower mounting seat 9, the rotating member has a support rod 12, a support seat 13 and a threaded sleeve 14, the support rod 12 passes through the support The seat 13 extends to the bottom of the support seat 13. The support rod 12 located above the support seat 13 is a threaded segment with a thread. The threaded sleeve 14 is threadedly matched with the threaded segment. One end of the first support member is fixedly connected to the support seat 13, and the other end is fixedly connected to the slide rail 7 to achieve the function of supporting the wheel edge support part; one end of the second support member is fixedly connected to the threaded sleeve 14, and the other end passes through the sliding member 8 and the inclined surface in sequence, wherein the sliding member 8 and the inclined surface are provided with a sliding groove 15 in the vertical direction for the vertical displacement of the second support member. It should be noted that the second support member of this embodiment achieves vertical displacement by means of threaded engagement between the threaded sleeve 14 and the threaded segment. During the specific testing process, when the vehicle under test enters the vehicle, the wheel contacts the follower 24. Under the force of gravity, the follower 24 drives the wheel edge supports on both sides of the drum 1 in a coordinated manner, downward along the extended direction of the inclined surface. As the slider 8 slides along the slide rail 7, the second support member, under the force of the slider 8, slides downward along the inclined surface and the slide groove 15 provided thereon, thereby driving the threaded sleeve 14 to which it is connected to move along the threaded segment of the support rod 12. The horizontal height of the wheel edge supports is adjusted as the threaded segment rotates under force. When the wheel contacts the follower 24 on both sides, the wheel is locked. Force analysis indicates that the wheel is directly above the drum 1 at this point. The braking performance thus measured represents the actual braking performance of the vehicle.

[0031] Furthermore, the rotating member also includes a column gear 16, a gear sleeve 17, and a bearing 18. The column gear 16 is fixedly connected to the bottom of the support base 13. The gear sleeve 17 is sleeved on the column gear 16 and meshes with the gear sleeve 17. The bearing 18 is sleeved on the gear sleeve 17. When the threaded segment is rotated under force, the column gear 16 is driven to rotate and the gear sleeve 17 rotates within the bearing 18. The bottom 6 of the mounting groove 3 has a receiving groove for accommodating the bearing 18. The receiving groove is located in the middle of the bottom 6 of the mounting groove 3.

[0032] Furthermore, the detection device also includes a planetary gear reducer 20, a reducer mounting flange 21, and a drive flange 22; the power output shaft of the drive motor 2 is fixedly connected to the power input end of the planetary gear reducer 20, the power output shaft of the planetary gear reducer 20 extends rearward from the central cavity of the reducer mounting flange 21, the front of the drive flange 22 is connected to the power output shaft of the planetary gear reducer 20, and the rear of the drive flange 22 is connected to the drum 1. The detection components are arranged symmetrically, with the rear end of the drum 1 extending toward the rear end of the other drum 1, and the protruding end of the drum 1 is sleeved with an end fixing flange 23.

[0033] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A vehicle brake detection device, characterized in that: The detection device comprises: a detection assembly, a wheel edge support portion and a follower (24); The detection assembly comprises a fixed bracket, at least two rollers (1), and each roller (1) has a corresponding drive motor (2), the at least two rollers (1) are parallel to the ground and coaxially arranged, and one end of each roller (1) is rotatably connected to the fixed bracket, and the other end is connected to the output shaft side of the corresponding drive motor (2); the wheel edge support portion is arranged on both sides of the roller (1), and is used to support the wheel of the inspected vehicle entering and make it contact with the roller (1); the driven member (24) is arranged between the wheel edge support portion and the roller (1), and is used to keep the wheel in a driven state when the roller (1) rotates and drives the wheel; The wheel edge support portion is composed of a rotating member and two support portions connected to the rotating member and symmetrically arranged, wherein the rotating member is arranged below the roller (1) and is used to support the vertical displacement of the two support portions; The detection device has a mounting groove (3) for mounting a wheel edge support portion, the mounting groove (3) having a first inclined surface (4) for mounting one of the two support portions and a second inclined surface (5) for mounting the other support portion, the first inclined surface (4) and the second inclined surface (5) both being arranged at an obtuse angle to a groove bottom (6) of the mounting groove (3) and being symmetrical to each other; Each supporting part comprises: a slide rail (7), a sliding member (8), a follower mounting seat (9), a first supporting member, and a second supporting member; The slide rail (7) extends along the inclined direction of the inclined surface and toward the bottom (6) of the mounting groove (3); the sliding member (8) is slidably arranged on the slide rail (7); the follower mounting seat (9) is arranged on the sliding member (8) and is parallel to the bottom (6) of the mounting groove (3); the follower (24) is mounted on the follower mounting seat (9); the rotating member has a support rod (12), a support seat (13) and a threaded sleeve (14); the support rod (12) passes through the support seat (13) and extends to the support seat (14). Below the support seat (13), the support rod (12) located above the support seat (13) is a threaded segment with a thread, the threaded sleeve (14) is threadedly matched with the threaded segment, one end of the first support member is fixedly connected to the support seat (13), and the other end is fixedly connected to the slide rail (7), one end of the second support member is fixedly connected to the threaded sleeve (14), and the other end passes through the sliding member (8) and the inclined surface in sequence, wherein the sliding member (8) and the inclined surface are provided with a sliding groove (15) in the vertical direction for accommodating the vertical displacement of the second support member; The rotating member further comprises a column gear (16), a gear sleeve (17) and a bearing (18); the column gear (16) is fixedly connected to the bottom of the support seat (13); the gear sleeve (17) is sleeved on the column gear (16) and meshed with the column gear (16); and the bearing (18) is sleeved on the gear sleeve (17).

2. The automobile brake detection device according to claim 1, characterized in that: The bottom (6) of the installation groove (3) has an accommodating groove for accommodating a bearing (18), and the accommodating groove is located in the middle of the bottom (6) of the installation groove (3).

3. The automobile brake detection device according to any one of claims 1 to 2, characterized in that: The detection device further comprises a planetary gear reducer (20), a reducer mounting flange (21) and a drive flange (22); The power output shaft of the driving motor (2) is fixedly connected to the power input end of the planetary gear reducer (20), the power output shaft of the planetary gear reducer (20) extends backward from the middle cavity of the reducer mounting flange (21), the front of the driving flange (22) is connected to the power output shaft of the planetary gear reducer (20), and the rear of the driving flange (22) is connected to the drum (1).

4. The automobile brake detection device according to claim 3, characterized in that: The detection components are symmetrically arranged, the rear end of the roller (1) extends toward the rear end of the other roller (1), and the extended end of the roller (1) is sleeved with an end fixing flange (23).

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