Automobile wheel speed detection device

Abstract

The utility model discloses an automobile wheel speed detection device, and relates to the technical field of automobile performance test tools. Comprising a velometer, a rotating disc, an adjusting support and a connecting rod, the velometer is used for measuring the rotating speed of the rotating disc, and the rotating disc is fixedly installed on the outer side of an automobile hub through the adjusting support and the connecting rod; an arc-shaped mounting hole is formed in the rotary disc, one end of the adjusting support is mounted at the arc-shaped mounting hole through a threaded connection structure, the adjusting support is mounted at different positions of the arc-shaped mounting hole to change the orientation and position of the adjusting support, and the connecting rod is further connected with different positions of the adjusting support to adjust the distance between the connecting rod and the rotary disc. Therefore, the device is suitable for various types of automobile hubs. According to the automobile wheel speed detection device provided by the utility model, the arc-shaped mounting hole is arranged on the turntable, so that the connecting rod can be fixed at any position on the circumferential position of the turntable by adjusting the bracket, and the wheel speed detection device can be adapted to various types of automobile hubs in the market.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile performance testing tools, in particular to an automobile wheel speed detection device. Background Art

[0002] Vehicle wheel speed detection is a limit indicator for vehicle evaluation. It measures the wheel speed of wheeled vehicles and the changes in wheel speed under ABS performance, and should comply with the requirements of national standard GB7258-2017. Therefore, it is necessary to carry out the above performance test items on real-scene vehicles equipped with wheel speed detection devices. The data is output by the VBOX acquisition system to evaluate the overall performance of the vehicle.

[0003] During vehicle testing, wheel speed meters are installed and fixed on the wheel hubs. The wheel speed meters rotate synchronously with the rotation of the wheels to achieve real-time synchronous monitoring of the vehicle wheel speed. By collecting and benchmarking the wheel speed values, the purpose of vehicle evaluation is achieved.

[0004] However, most of the current domestic methods use wired wheel speed sensors to collect wheel speed data. During use, there are often the following disadvantages: for different vehicles, due to the inconsistency of vehicle models, the number of fixing nuts and the pitch circle size of the wheel hubs of different models are different. The existing fixtures cannot cover all models, resulting in the use of multiple sets of fixtures to match them. Utility Model Content

[0005] The utility model provides a vehicle wheel speed detection device. By arranging an arc-shaped mounting hole on a turntable, a connecting rod can be fixed at any position on the circumference of the turntable by adjusting a bracket, thereby making the wheel speed detection device adaptable to various types of vehicle wheels on the market, so as to solve the above-mentioned technical problems.

[0006] The technical solution of the utility model for solving the above problems is as follows: providing a vehicle wheel speed detection device, including a speedometer, a turntable, an adjustment bracket, and a connecting rod, wherein the speedometer is used to measure the rotation speed of the turntable, the adjustment bracket is installed on the turntable, one end of the connecting rod is connected to the adjustment bracket, and the other end is connected to the vehicle wheel hub, and the turntable is fixedly mounted on the outer side of the vehicle wheel hub through the adjustment bracket and the connecting rod; an arc-shaped mounting hole is provided on the turntable, one end of the adjustment bracket is mounted at the arc-shaped mounting hole through a threaded connection structure, the adjustment bracket can change its own direction and position by being installed at different positions of the arc-shaped mounting hole, and the connecting rod can also adjust the distance from the connecting rod to the turntable by being connected to different positions of the adjustment bracket, thereby adapting to various models of vehicle wheels.

[0007] Furthermore, the speed meter is a rotary encoder, and the rotation measuring end of the speed meter is fixedly arranged at the center of the turntable.

[0008] Furthermore, it also includes a limit assembly, which is used to prevent the speed meter from rotating as a whole along with the turntable.

[0009] Furthermore, the limit assembly includes a support and a limit rod, and a socket is provided on the support. One end of the limit rod is connected to the housing of the speed meter, and the other end passes through the socket to be movably connected to the support; when the support is fixed to the body structure of the car except the wheel hub, the limit rod and the socket cooperate with each other to limit the speed meter as a whole from rotating with the turntable.

[0010] Furthermore, the support is a magnetic support, and the support and the vehicle body structure are fixed by magnetic attraction.

[0011] Furthermore, a universal joint is provided on the support, a socket is opened on the spherical part of the universal joint, and the diameter of the socket is larger than the diameter of the limit rod; the connecting rod moves in the socket to adapt to the up and down movement of the automobile wheel hub.

[0012] Furthermore, one end of the limit rod is connected to the body of the speed meter in a rotational manner, so that when the connecting rod moves in the socket, the connecting rod also swings relative to the speed meter, thereby increasing the freedom of movement of the connecting rod and making the movable connecting rod and the bouncing car wheel hub more adaptable.

[0013] Furthermore, a strip-shaped mounting hole is provided on the adjustment bracket, and one end of the connecting rod is connected to the adjustment bracket at the strip-shaped mounting hole through a threaded connection structure, and the connecting rod is fixed at different positions of the arc-shaped mounting hole to adjust the distance from itself to the turntable.

[0014] Furthermore, the other end of the connecting rod is provided with a threaded sleeve with a screw hole, the exposed end of the automobile hub bolt is set as a threaded shaft, and the threaded sleeve and the automobile hub bolt are adapted to each other to fix the connecting rod to the automobile hub.

[0015] Furthermore, the adjustment bracket is provided with an arc-shaped limiting block, which extends into the arc-shaped mounting hole to limit the arc-shaped mounting hole to prevent the adjustment bracket from moving relative to the arc-shaped mounting hole.

[0016] Beneficial effects of the utility model:

[0017] The present invention provides an automobile wheel speed detection device. When installed on a turntable, the adjustment bracket can be installed at any position in the arc-shaped mounting hole, so that the connecting rod can also follow the adjustment bracket to change its position orientation relative to the turntable in the circumferential direction. At the same time, the connecting rod is also installed at different positions of the strip-shaped mounting hole, so that the distance from the connecting rod to the turntable is also changed accordingly. Therefore, the automobile wheel speed detection device of the present invention can be used to measure the wheel speed of various types of automobile wheels on the market without the need to use multiple clamps.

[0018] In addition, when driving a car, if the car wheel hub bounces up and down when passing through an uneven road surface, the limit rod can also move up and down in the socket to adapt to the up and down bounce of the car wheel hub; moreover, since the up and down bounce trajectory of the car wheel hub is an arc trajectory, the limit rod is also hingedly connected to the housing of the speed meter, so that the limit rod can also swing relative to the speed meter when the car wheel hub bounces up and down, thereby fully adapting to the bounce of the car wheel hub, effectively preventing the support from falling off from the car body structure other than the wheel hub, and ensuring the accuracy of the test results of the car wheel speed by this device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the present invention, but not all. Those skilled in the art can derive other drawings from these drawings without inventive effort.

[0020] Figure 1 1 is an overall structural diagram of the vehicle wheel speed detection device of this embodiment;

[0021] Figure 2 2 is a structural diagram of the turntable of this embodiment;

[0022] Figure 3 is a structural diagram of the adjustment bracket of this embodiment;

[0023] Figure 4 2 is a structural diagram of the connecting rod of this embodiment;

[0024] Figure 5 1 is a structural diagram of the support of this embodiment;

[0025] Figure 6 for Figure 1 A partial enlarged view of

[0026] 1- Speedometer;

[0027] 2-turntable, 21-arc-shaped mounting hole;

[0028] 3-adjusting bracket, 31-strip mounting hole, 32-arc-shaped limit block;

[0029] 4-connecting rod, 41-threaded sleeve;

[0030] 5-limiting assembly, 51-support, 52-limiting rod, 53-jack, 54-universal rotation joint. DETAILED DESCRIPTION

[0031] In this specification, directional terms such as up, down, left, right, front, back, front, back, top, and bottom, which are mentioned or may be mentioned, are defined relative to the configurations shown in the accompanying drawings. The terms "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may vary depending on the location and usage of the component. Therefore, these or other directional terms should not be construed as restrictive.

[0032] See also Figures 1 to 6 A vehicle wheel speed detection device according to a specific embodiment of the present invention includes a speedometer 1, a turntable 2, an adjusting bracket 3, and a connecting rod 4. The speedometer 1 is used to measure the rotation speed of the turntable 2. The adjusting bracket 3 is installed on the turntable 2. One end of the connecting rod 4 is connected to the adjusting bracket 3 and the other end is connected to the vehicle wheel hub. The turntable 2 is fixedly mounted on the outer side of the vehicle wheel hub through the adjusting bracket 3 and the connecting rod 4; an arc-shaped mounting hole 21 is provided on the turntable 2, and one end of the adjusting bracket 3 is mounted on the arc-shaped mounting hole 21 through a threaded connection structure. The adjusting bracket 3 can change its own direction and position by being installed at different positions of the arc-shaped mounting hole 21. The connecting rod 4 can also adjust its distance from the turntable 2 by connecting to different positions of the adjusting bracket 3, thereby adapting to various models of vehicle wheels.

[0033] For details, please refer to Figure 1 In this embodiment, the turntable 2 is a circular disk, the speedometer 1 is a rotary encoder, the rotation measuring end of the speedometer 1 is fixedly inserted into the turntable 2, and the main structure of the speedometer 1 is located on the left side of the turntable 2; there are three adjustment brackets 3, and the three adjustment brackets 3 are fixedly installed at the edge of the turntable 2 and extend radially outward. A connecting rod 4 is correspondingly installed at each adjustment bracket 3, and the connecting rod 4 extends to the right side of the turntable 2, and the right end of the connecting rod 4 is used to be fixedly connected to the bolt thread on the automobile wheel hub.

[0034] In this regard, when technicians fix the three connecting rods 4 to the car wheel hub, the rotation of the car wheel hub can drive the turntable 2 and the rotating measuring end of the speedometer 1 to rotate synchronously. The speedometer 1 detects the rotation speed of the rotating measuring end to achieve accurate measurement of the car wheel speed.

[0035] See also Figure 2In this embodiment, two arc-shaped mounting holes 21 are provided on the edge of the turntable 2. The two arc-shaped mounting holes 21 are symmetrically distributed on the turntable 2, and the sum of the lengths of the two arc-shaped mounting holes 21 is very close to the circumference of the turntable 2. To this end, a technician can pass a bolt through the arc-shaped mounting holes 21 and thread the bolt into a fixed connection with the adjustment bracket 3. The nut portion of the bolt and the adjustment bracket 3 cooperate with each other to clamp the turntable 2, ultimately securing the adjustment bracket 3 to the turntable 2. Furthermore, the technician can also insert the bolt into different positions of the arc-shaped mounting holes 21 to secure the adjustment bracket 3 to different positions of the turntable 2, thereby adjusting the orientation and position of the adjustment bracket 3.

[0036] See also Figure 3 In this embodiment, the adjusting bracket 3 is a long strip plate, one end of the adjusting bracket 3 is a fan-shaped end head, a screw hole is opened at the fan-shaped end head, and an arc-shaped limit block 32 is integrally provided on one side of the fan-shaped end head, and the shape of the arc-shaped limit block 32 is adapted to the arc-shaped mounting hole 21; when the adjusting bracket 3 is fixedly mounted on the turntable 2, the arc-shaped limit block 32 is inserted into the arc-shaped mounting hole 21, and is also limited to each other with the arc-shaped mounting hole 21, so that the adjusting bracket 3 cannot swing relative to the fixed connection position between it and the turntable 2, and the adjusting bracket 3 always maintains a radial posture relative to the turntable 2, so as to reduce the difficulty for technicians to install the wheel speed detection device of this embodiment.

[0037] See also Figure 3 and Figure 4 The adjusting bracket 3 is also provided with a strip mounting hole 31, which extends radially relative to the turntable 2; a screw hole is axially provided at the left end of the connecting rod 4, and a bolt is screwed and installed at the screw hole; to this end, the technician can pass the bolt through the strip mounting hole 31 to fix it with the connecting rod 4. Since the nut of the bolt and the connecting rod 4 are respectively located on both sides of the adjusting bracket 3, the connecting rod 4 can cooperate with the nut to be clamped and fixed on the adjusting bracket 3, that is, the connecting rod 4 is fixedly connected to the adjusting bracket 3; similarly, the technician can also adjust the specific position of the bolt in the strip mounting hole 31 to make the connecting rod 4 fixedly connected to different positions of the adjusting bracket 3, so as to adjust the distance from the connecting rod 4 to the turntable 2 to adapt to automobile wheels of different sizes and types.

[0038] In addition, the right end of the connecting rod 4 is also only rotatably provided with a threaded sleeve 41; when testing the vehicle wheel speed, the technician can replace the original bolt on the vehicle wheel hub with a test bolt with a threaded shaft at the exposed end, so that the connecting rod 4 can be fixedly connected to the bolt on the vehicle wheel hub through the threaded sleeve 41, thereby causing the vehicle wheel hub to drive the turntable to rotate synchronously.

[0039] See also Figure 1 、 Figure 5 、 Figure 6In this embodiment, in order to prevent the main structure of the speed meter 1 from being driven to rotate by the rotating speed measuring end, thereby affecting the accuracy of the test results, a limit assembly 5 is further provided on the outside of the shell of the speed meter 1 to limit the rotation of the main structure of the speed meter 1.

[0040] Specifically, the limit assembly 5 includes a support 51 and a limit rod 52. The support 51 is a magnetic support that is magnetically attached to the vehicle body structure above the vehicle wheel hub and is arranged horizontally. The outer end of the support 51 is a universal joint 54, and the spherical portion of the universal joint 54 also has a socket 53. The lower end of the limit rod 52 is hingedly connected to the housing structure of the speed meter 1, and the upper end of the limit rod 52 is movably inserted into the socket 53. Therefore, when the vehicle wheel hub rotates, the limit rod 52 can only move vertically due to the restraining effect of the socket 53, and the speed meter 1 cannot rotate with the rotating test terminal due to the restraining effect of the limit rod 52.

[0041] Moreover, if Figure 6 As shown, since the limit rod 52 is hingedly connected to the speedometer 1, the rotational direction of the limit rod 52 relative to the speedometer 1 is exactly consistent with the up and down bouncing direction of the automobile wheel hub when passing over an uneven road surface. Therefore, when the automobile wheel hub bounces up and down over the uneven road surface, the limit rod 52 can also simultaneously swing relative to the speedometer 1, move vertically within the socket 53, and drive the spherical part of the universal joint 54 to rotate, so as to adapt to the up and down bouncing action of the automobile wheel hub, thereby effectively preventing the limit member from being deformed by external forces and ensuring the service life of the limit assembly 5.

[0042] Supplementary explanation: The way in which the vehicle wheel speed detection device of this embodiment is installed on the outside of the vehicle wheel hub is similar to the installation method of the invention patent application number CN201210188764.9.

[0043] Any matters not mentioned above are applicable to the prior art.

[0044] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that modifications may be made to the technical solutions described in the above embodiments, or that some of the technical features may be replaced with equivalents; and such modifications or replacements do not deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A vehicle wheel speed detection device, characterized in that: The invention comprises a speedometer (1), a turntable (2), an adjusting bracket (3), and a connecting rod (4). The speedometer (1) is used to measure the rotation speed of the turntable (2). The adjusting bracket (3) is installed on the turntable (2). One end of the connecting rod (4) is connected to the adjusting bracket (3) and the other end is connected to the automobile wheel hub. The turntable (2) is fixedly installed on the outer side of the automobile wheel hub through the adjusting bracket (3) and the connecting rod (4). The turntable (2) is provided with an arc-shaped mounting hole (21). One end of the adjusting bracket (3) is installed at the arc-shaped mounting hole (21) through a threaded connection structure. The adjusting bracket (3) changes its own position and orientation by being installed at different positions of the arc-shaped mounting hole (21). The connecting rod (4) also adjusts its distance from the turntable (2) by being connected to different positions of the adjusting bracket (3), thereby adapting to various models of automobile wheel hubs.

2. The vehicle wheel speed detection device according to claim 1, wherein: The speed meter (1) is a rotary encoder, and the rotary measuring end of the speed meter (1) is fixedly arranged at the center of the turntable (2).

3. The vehicle wheel speed detection device according to claim 1, wherein: It also includes a limit assembly (5), which is used to prevent the speed meter (1) from rotating as a whole along with the turntable (2).

4. The vehicle wheel speed detection device according to claim 3, characterized in that: The limiting assembly (5) includes a support (51) and a limiting rod (52). The support (51) is provided with a socket (53). One end of the limiting rod (52) is connected to the housing of the speed meter (1), and the other end passes through the socket (53) to be movably connected to the support (51). When the support (51) is fixed to the vehicle body structure other than the wheel hub, the limiting rod (52) and the socket (53) cooperate with each other to limit the speed meter (1) from rotating as a whole along with the turntable (2).

5. The vehicle wheel speed detection device according to claim 4, characterized in that: The support (51) is a magnetic support, and the support (51) is fixed to the vehicle body structure by magnetic attraction.

6. The vehicle wheel speed detection device according to claim 4, characterized in that: A universal joint (54) is provided on the support (51), a socket (53) is provided on the spherical portion of the universal joint (54), and the diameter of the socket (53) is larger than the diameter of the limit rod (52); the connecting rod (4) moves in the socket (53) to adapt to the up and down movement of the automobile wheel hub.

7. The vehicle wheel speed detection device according to claim 6, characterized in that: One end of the limit rod (52) is connected to the body of the speed meter (1) in a rotational manner, so that when the connecting rod (4) moves in the socket (53), the connecting rod (4) also swings relative to the speed meter (1), thereby increasing the freedom of movement of the connecting rod (4) and making the movable connecting rod (4) and the bouncing automobile wheel hub more compatible.

8. The vehicle wheel speed detection device according to claim 1, wherein: The adjusting bracket (3) is provided with a strip-shaped mounting hole (31), one end of the connecting rod (4) is connected to the adjusting bracket (3) at the strip-shaped mounting hole (31) via a threaded connection structure, and the connecting rod (4) is fixed at different positions of the arc-shaped mounting hole (21) to adjust the distance between itself and the turntable (2).

9. The vehicle wheel speed detection device according to claim 6, wherein: The other end of the connecting rod (4) is provided with a threaded sleeve (41) with a screw hole, the exposed end of the automobile wheel hub bolt is set as a threaded shaft, and the threaded sleeve (41) and the automobile wheel hub bolt are adapted to each other so that the connecting rod (4) is fixedly connected to the automobile wheel hub.

10. The vehicle wheel speed detection device according to claim 1, wherein: The adjusting bracket (3) is further provided with an arc-shaped limiting block (32), which extends into the arc-shaped mounting hole (21) to limit the arc-shaped mounting hole (21) and prevent the adjusting bracket (3) from moving relative to the arc-shaped mounting hole (21).

Images