Vehicle wheel jump stroke measuring device

Abstract

The utility model discloses a vehicle wheel jump stroke measuring device, which comprises a base, the base is of a rectangular plate-shaped structure, a plurality of suckers, a displacement mechanism, a measuring mechanism and a fixing mechanism are mounted on the base, and the suckers are respectively arranged on one side of the base; the displacement mechanism is mounted on the other side of the base; the measuring mechanism is installed on the displacement mechanism and is parallel to the displacement mechanism. The fixing mechanism is movably arranged at the moving end of the displacement mechanism. The device relates to the technical field of automobile testing, and adopts a bearing with a movable joint as a connecting assembly, so that the measuring device can flexibly adapt to various movements of wheels, including rotation, camber angle change and steering, and the measuring accuracy and the wheel operation smoothness are ensured. The multiple suction cups on the base provide a stable fixing mode which is not limited to vehicle suspension types and space limitation, and installation and use on various vehicles are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile testing, in particular to a vehicle wheel jump travel measuring device. Background Art

[0002] During vehicle development, the measurement of vehicle wheel travel is crucial, as it is directly related to the evaluation and adjustment of suspension performance. At present, the mainstream wheel travel measurement methods mainly include installing a cable displacement sensor inside the suspension or outside the wheel. The method of installing inside the suspension uses a tool to fix the cable displacement sensor to measure the displacement change of a specific point of the suspension relative to the vehicle body. The method on the outside of the wheel measures the displacement of the wheel center relative to the vehicle body. These technologies are widely used in vehicle testing, especially in scenarios where detailed analysis of suspension response is required.

[0003] The frequency response characteristics of existing cable displacement sensors limit their measurement accuracy in fast bouncing situations. Especially when the wheel jumps up quickly, the sharp decrease or relaxation of the cable tension will lead to significant measurement errors. In addition, the internal installation method of the suspension is limited by the suspension space of the vehicle, and not all types of vehicles are suitable for this measurement method. The above shortcomings affect the accuracy of the measurement data and the wide applicability of the test. Utility Model Content

[0004] The utility model aims to provide a vehicle wheel jump travel measuring device to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vehicle wheel jump travel measuring device, including a base, which is a rectangular plate structure, and is equipped with: a suction cup, wherein there are multiple suction cups and they are respectively arranged on one side of the base; a displacement mechanism, wherein the displacement mechanism is installed on the other side of the base; a measuring mechanism, wherein the measuring mechanism is installed on the displacement mechanism and is parallel to the displacement mechanism; and a fixing mechanism, wherein the fixing mechanism is movably arranged on the moving end of the displacement mechanism.

[0006] In a feasible implementation manner, the displacement mechanism includes: a slide rail, the slide rail is fixedly arranged on the other side of the base, and a slider is arranged opposite to the plurality of suction cups, and the slider is movably arranged on the slide rail in a vertical direction.

[0007] In a feasible embodiment, the measuring mechanism includes: a laser displacement sensor, which is fixedly arranged on the side end of the slide rail, and the light beam of the laser displacement sensor is vertically downward and parallel to the slide rail; and a light spot reflection plate, which is fixedly arranged above the slider.

[0008] In a feasible implementation manner, the surface of the light spot reflection plate is perpendicular to the light beam of the laser displacement sensor.

[0009] In a feasible embodiment, the fixing mechanism includes: a rod end joint bearing tie rod, the upper end of which is arranged on a sliding block through a connecting assembly, and the bottom end is vertically downward; a wheel adapter plate, one side of which is installed on the lower end of the rod end joint bearing tie rod through a connecting assembly; and an extended wheel hub nut, the number of which is multiple and which are respectively arranged at the other end of the wheel adapter plate.

[0010] In a feasible implementation manner, the connection component is a bearing with a movable joint.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the device adopts a bearing with a movable joint as a connecting component, so that the measuring device can flexibly adapt to various movements of the wheel, including rotation, camber angle change and steering, thereby ensuring the accuracy of measurement and the smoothness of wheel operation. The multiple suction cups on the base provide a stable fixing method, which is not limited to the vehicle suspension type and space restrictions, and is convenient for installation and use on various vehicles. The configuration of the slide rail and the slider, in conjunction with the laser displacement sensor and the light spot reflection plate, realizes the accurate, continuous and real-time measurement of the wheel jump stroke, and improves the measurement accuracy. During the overall operation process, the wheel jump is transmitted through the wheel adapter plate, the rod end joint bearing pull rod and the slider, and is finally captured by the laser displacement sensor and converted into displacement data, which improves the quality and efficiency of the test, and also provides reliable technical support for the evaluation and adjustment of the vehicle suspension performance. While ensuring the measurement accuracy, the vehicle wheel jump stroke measurement device also greatly improves the convenience of operation and the comprehensiveness of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the shaft side structure of the utility model.

[0014] In the figure: 1. base, 2. suction cup, 3. slide rail, 4. slider, 5. laser displacement sensor, 6. light spot reflection plate, 7. rod end joint bearing pull rod, 8. wheel adapter plate, 9. extended wheel hub nut, 10. bearing with movable joint. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1 to Figure 2 The utility model provides a technical solution: a vehicle wheel jump travel measuring device, including a base 1, the base 1 is a rectangular plate structure, and the base 1 is equipped with: a suction cup 2, a displacement mechanism, a measuring mechanism and a fixing mechanism. There are multiple suction cups 2, which are respectively arranged on one side of the base 1; the displacement mechanism is installed on the other side of the base 1; the measuring mechanism is installed on the displacement mechanism and is parallel to the displacement mechanism; the fixing mechanism is movably arranged on the moving end of the displacement mechanism.

[0017] In the specific implementation process, it should be noted that when in use, the multiple suction cups 2 on the base 1 are firmly adsorbed on the wheel arch of the vehicle body directly above the wheel. The fixing mechanism is used to fix the wheel. When the wheel bounces up and down, the displacement mechanism starts to move accordingly. During the movement, the measuring mechanism can measure the wheel's jumping stroke. The device can capture detailed information on the wheel jumping stroke in real time when the wheel bounces, providing accurate data support for the detection and analysis of the vehicle suspension system.

[0018] In some examples, further, the displacement mechanism includes: a slide rail 3 and a slider 4, the slide rail 3 is fixedly arranged on the other side of the base 1 and is arranged opposite to the multiple suction cups 2; the slider 4 is movably arranged on the slide rail 3 in the vertical direction.

[0019] In the specific implementation process, it should be noted that when the wheel bounces, the rod end joint bearing pull rod 7 moves up and down, thereby pushing the slider 4 to move vertically along the slide rail 3. When the slider 4 moves in the up and down direction, the measuring mechanism performs real-time tracking measurement. Since the movement trajectory of the slider 4 and the measuring mechanism corresponds to the stroke of the wheel bounce, the position change of the slider 4 can be accurately captured, thereby obtaining the specific displacement data of the wheel bounce.

[0020] In some examples, further, the measuring mechanism includes: a laser displacement sensor 5 and a light spot reflection plate 6, the laser displacement sensor 5 is fixedly arranged at the side end of the slide rail 3, the light beam of the laser displacement sensor 5 is vertically downward and parallel to the slide rail 3; the light spot reflection plate 6 is fixedly arranged above the slider 4. The surface of the light spot reflection plate 6 is perpendicular to the light beam of the laser displacement sensor 5.

[0021] In the specific implementation process, it should be noted that a laser displacement sensor 5 is fixedly installed at the side end of the slide rail 3, and the light beam of the laser displacement sensor 5 is emitted vertically downward and remains parallel to the slide rail 3. At the same time, the light spot reflection plate 6 is fixed above the slider 4, and its surface is perpendicular to the light beam of the laser displacement sensor 5. When the wheel bounces and causes the slider 4 to move vertically along the slide rail 3, the light spot reflection plate 6 also moves up and down. Since the surface of the light spot reflection plate 6 is perpendicular to the light beam of the laser displacement sensor 5, the light spot reflection plate 6 can accurately reflect the laser back to the sensor. After receiving the reflected light signal, the laser displacement sensor 5 calculates the position change of the light spot reflection plate 6 through internal photoelectric conversion and processing, thereby obtaining accurate displacement data of the wheel bounce. Ensure that the measuring mechanism can measure and track the stroke change of the wheel during the entire bounce process with high precision through the synergistic effect of the laser displacement sensor 5 and the light spot reflection plate 6.

[0022] In some examples, further, the fixing mechanism includes: a rod end joint bearing tie rod 7, a wheel adapter plate 8 and an extended hub nut 9, the upper end of the rod end joint bearing tie rod 7 is arranged on the slider 4 through a connecting assembly, and the bottom end is vertically downward; one side of the wheel adapter plate 8 is installed on the lower end of the rod end joint bearing tie rod 7 through a connecting assembly; the number of extended hub nuts 9 is plural, and they are respectively arranged at the other end of the wheel adapter plate 8.

[0023] In the specific implementation process, it should be noted that the upper end of the rod end joint bearing tie rod 7 is connected to the slider 4 through the connecting assembly, and the bottom end thereof extends vertically downward. One side of the wheel adapter plate 8 is installed at the lower end of the rod end joint bearing tie rod 7 through the connecting assembly, and the wheel adapter plate 8 can pull the rod end joint bearing tie rod 7 up and down as the wheel bounces. A plurality of extended hub nuts 9 are used to connect the wheel to the wheel adapter plate 8. When the wheel bounces up and down, the wheel adapter plate 8 transmits this movement to the rod end joint bearing tie rod 7, thereby causing the slider 4 to move up and down along the slide rail 3. Since the slider 4 is connected to the light spot reflection plate 6, the movement of the slider 4 will cause the position of the light spot reflection plate 6 to change, which is detected by the laser displacement sensor 5. The fixing mechanism ensures that the measuring device can accurately capture and quantify the wheel's bouncing stroke, providing key data for the evaluation of the vehicle suspension performance.

[0024] In some examples, further, the connection component is a bearing 10 with a movable joint, and the bearing 10 with a movable joint allows the rod end joint bearing tie rod 7 to have a certain degree of mobility at the connection between the upper end and the slider 4. Due to the bearing 10 with a movable joint, the wheel can freely rotate, change the camber angle, and turn when moving without being restricted by the measuring device. When the wheel bounces, the wheel adapter plate 8 is connected to the rod end joint bearing tie rod 7 through the bearing 10 with a movable joint, so that various dynamic movements of the wheel can be adapted and transmitted by the bearing 10 with a movable joint. It ensures that the measuring device will not interfere with the normal movement of the wheel while accurately capturing the wheel bounce stroke, thereby maintaining the flexibility of wheel operation and the natural response of the vehicle suspension system. The bearing 10 connection component with a movable joint greatly improves the applicability of the measuring device and the accuracy of the measurement results.

[0025] In the description of the present utility model, it should be understood that the orientations or positional relationships indicated by terms such as "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "two ends", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation; at the same time, unless otherwise clearly stipulated and limited, terms such as "setting", "installation", "connection", "fixed installation", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle wheel jump travel measuring device, comprising a base, wherein the base is a rectangular plate structure, characterized in that: The base is provided with: Suction cups, the number of which is plural and which are respectively arranged on one side of the base; A displacement mechanism, wherein the displacement mechanism is installed on the other side of the base; A measuring mechanism, wherein the measuring mechanism is mounted on the displacement mechanism and is parallel to the displacement mechanism; The fixing mechanism is movably arranged on the moving end of the displacement mechanism.

2. A vehicle wheel jump travel measuring device according to claim 1, characterized in that: The displacement mechanism comprises: A slide rail is fixedly arranged on the other side of the base, and a slider is arranged opposite to the plurality of suction cups. The slider is arranged on the slide rail so as to be movable in a vertical direction.

3. A vehicle wheel jump travel measuring device according to claim 2, characterized in that: The measuring mechanism comprises: A laser displacement sensor, wherein the laser displacement sensor is fixedly arranged at the side end of the slide rail, and the light beam of the laser displacement sensor is vertically downward and parallel to the slide rail; A light spot reflection plate is fixedly arranged above the slider.

4. A vehicle wheel jump travel measuring device according to claim 3, characterized in that: The surface of the light spot reflection plate is perpendicular to the light beam of the laser displacement sensor.

5. The vehicle wheel jump travel measuring device according to claim 1, characterized in that: The fixing mechanism comprises: A rod end joint bearing tie rod, wherein the upper end of the rod end joint bearing tie rod is arranged on the slider through a connection assembly, and the lower end of the rod end joint bearing tie rod is vertically downward; A wheel adapter plate, one side of which is mounted on the lower end of the rod end joint bearing tie rod through a connection assembly; The extended wheel hub nut is multiple in number and is respectively arranged at the other end of the wheel adapter plate.

6. A vehicle wheel jump travel measuring device according to claim 5, characterized in that: The connection component is a bearing with a movable joint.

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