Vehicle stability tester

Abstract

The utility model discloses a vehicle stability tester, one side of a tester main body is provided with a climbing frame, the climbing frame comprises a first frame body and a second frame body, a plurality of moving units are arranged between the first frame body and the second frame body, each moving unit comprises a screw rod and a plurality of control sleeves, the screw rod comprises a first thread and a second thread which are opposite in direction, and the first thread and the second thread are connected with the control sleeves. The first frame body and the second frame body are both provided with control sleeves, and when the screw rotates, the first frame body and the second frame body move in the opposite directions or in the opposite directions. By arranging the tester main body with the climbing frame, the stability and the center-of-gravity shift of different vehicle types, especially vehicles with different wheel tracks, can be accurately measured. According to the tester, the design that the two-way screw rod is matched with the control sleeve is adopted, and meanwhile, the universal wheels and the friction blocks are matched, so that when the rotating motor is powered on and the first frame body and the second frame body freely move in the opposite directions or in the opposite directions, stepless adjustment is achieved, and the universality and flexibility of equipment are greatly improved.

Description

Technical Field

[0001] This utility model relates to testing instruments, and in particular to a vehicle stability testing instrument. Background Technology

[0002] In the current field of vehicle manufacturing and testing, ensuring vehicle stability is of paramount importance. Traditional vehicle stability testing methods typically rely on fixed testing equipment or sites, which not only limits the scope of application of the testing environment but also has limitations in adaptability to different vehicle models and wheelbases. With the development of the automotive industry, the requirements for vehicle stability are becoming increasingly stringent, especially the evaluation of vehicle performance under complex road conditions, which is becoming more critical. Therefore, developing a vehicle stability tester that can be quickly adjusted to adapt to different vehicle models is particularly important. Utility Model Content

[0003] This invention addresses the shortcomings of existing technologies by providing a vehicle stability tester.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A vehicle stability tester includes a tester body, a climbing frame is provided on one side of the tester body, the climbing frame includes a first frame and a second frame, a plurality of moving units are provided between the first frame and the second frame, the moving unit includes a screw and a plurality of control sleeves, the screw includes a first thread and a second thread in opposite directions, and control sleeves are provided on both the first frame and the second frame, when the screw rotates, the first frame and the second frame move toward each other or move in opposite directions.

[0005] In the above scheme, it is preferable that the bottom of the climbing frame is provided with several casters for movement.

[0006] In the above scheme, preferably, a rotating motor matching the screw is provided on the first frame, and the rotating motor is connected to the screw.

[0007] In the above scheme, preferably, the climbing frame includes several supports, and the control sleeve is fixed on the supports.

[0008] In the above scheme, preferably, the climbing frame further includes a climbing board, one end of which is connected to a connecting plate, and the other end of which rests against the ground.

[0009] In the above scheme, preferably, the connecting plate rotates on the climbing board via several hinges.

[0010] In the above scheme, preferably, the omnidirectional wheel includes a mounting plate, a rotating column, a fork, and a wheel, and the fork is connected to the mounting plate through the rotating column.

[0011] In the above scheme, preferably, a friction block is slidably disposed in the fork, and the swivel wheel is locked after the friction block slides to abut against the wheel.

[0012] In the above scheme, preferably, a slide rail is provided in the fork, the friction block slides in the slide rail, and an electromagnet is provided on the upper side of the slide rail. A spring is provided between the electromagnet and the friction block. When the electromagnet is energized, the friction block does not contact the wheel under the action of magnetic force.

[0013] The beneficial effects of this invention are as follows: By setting up a testing instrument body with a climbing frame, accurate measurements of stability and center of gravity shift can be achieved for vehicles of different models, especially those with different wheelbases. The testing instrument employs a design that combines a bidirectional screw with a control sleeve, along with omnidirectional wheels and friction blocks. This allows for stepless adjustment when the rotating motor is energized, enabling the first and second frames to move freely in opposite directions, thus greatly improving the versatility and flexibility of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the climbing frame structure of this utility model.

[0016] Figure 3 This is a front view of the climbing frame of this utility model.

[0017] Figure 4 for Figure 3 A sectional view along the AA direction.

[0018] Figure 5 for Figure 4 Enlarged view of point B. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments: See below Figures 1-5 The vehicle stability tester includes a tester body 1, which includes a test platform. After the vehicle frame is placed on the test platform, it can rotate through the test platform. With the help of tilt sensors and pressure sensors, the tester can collect data on the vehicle's center of gravity offset and transmit it to an external terminal for stability analysis via a wireless module.

[0020] Therefore, to facilitate the vehicle frame's entry into the testing instrument body 1, a climbing frame is provided on one side of the testing instrument body 1. The climbing frame includes a first frame 2 and a second frame 3. Both the first frame 2 and the second frame 3 include inclined climbing boards 11. The climbing boards 11 are used to assist the vehicle frame in entering the testing instrument body 1 from the ground via the climbing frame.

[0021] A plurality of moving units are provided between the first frame 2 and the second frame 3. Each moving unit includes a screw 4 and a plurality of control sleeves 5. The screw 4 includes a first thread 6 and a second thread 7 in opposite directions. Control sleeves 5 are provided on both the first frame 2 and the second frame 3. The first thread 6 is a left-hand thread segment and the second thread 7 is a right-hand thread segment.

[0022] Control sleeves 5 are respectively provided on the first frame 2 and the second frame 3. Specifically, a bracket 10 is provided on both the first frame 2 and the second frame 3, and the control sleeve 5 is provided on the bracket 10. At the same time, the first thread 6 is threadedly engaged with the control sleeve 5 on the first frame 2, and the second thread 7 is threadedly engaged with the control sleeve 5 on the second frame 3. Thus, when the screw 4 rotates, the first frame 2 and the second frame 3 move towards each other or move in opposite directions, thereby realizing stepless adjustment between the first frame 2 and the second frame 3.

[0023] Furthermore, one end of the screw 4 is connected to a rotary motor 9 embedded in the first frame 2 via a coupling. The rotary motor 9 is preferably a 24V DC geared motor. When the rotary motor 9 drives the screw 4 to rotate, the first frame 2 and the second frame 3 move automatically under the action of the screw thread.

[0024] To facilitate the movement of the climbing frame, several sets of casters 8 are installed at the bottom of the frame. When the rotating motor 9 is started, the first frame 2 and the second frame 3 move more smoothly. Each set of casters 8 includes a mounting plate 14, a rotating column 15, a fork 16, and wheels 17. Polyurethane coating.

[0025] The fork 16 is connected to a rotatable wheel 17. The top of the fork 16 is connected to a mounting plate 14 via a rotating column 15. The mounting plate 14 is fixed to the bottom of the first frame 2 or the second frame 3. Furthermore, the rotating column 15 incorporates a ball bearing to reduce steering resistance, facilitating the rotation of the omnidirectional wheel 8. A vertical slide rail 19 is provided inside the fork 16. A friction block 18 is installed inside the slide rail 19, and the friction block 18 is connected to an electromagnet 20 above the slide rail 19 via a spring 21. Under normal conditions, when the electromagnet 20 is de-energized, the spring 21 presses the friction block 18 downwards, bringing it into contact with the wheel 17 and locking it in place. When the electromagnet 20 is energized, the friction block 18 moves upwards under the magnetic force, overcoming the spring 21, allowing the wheel 17 to move freely.

[0026] The electromagnet 20 is electrically connected to the rotating motor 9. When the rotating motor 9 starts, the electromagnet 20 starts synchronously. Therefore, when the first frame 2 and the second frame 3 move, the wheel 17 can operate normally.

[0027] The climbing frame features an inclined climbing board 11 with a diamond-shaped anti-slip steel plate welded to its surface. The front end of the board is connected to a foldable connecting plate 12 via several damping hinges 13. When unfolded, the connecting plate 12 flips downwards to contact the ground, forming a ramp structure. The end of the connecting plate 12 is equipped with a removable nylon wear-resistant pad to reduce frictional wear with the ground.

[0028] Therefore, by controlling the forward and reverse rotation of the rotary motor 9, the bidirectional screw 4 is driven to rotate, causing the two frames to expand outward or retract inward synchronously, thereby matching the wheel track of different vehicles. Furthermore, the caster wheel 8 has a free-steering mechanism to adjust its position; after pressing the locking button, the electromagnet 20 is energized to attract the friction block 18 and press the wheel 17 tightly, preventing the tester from moving.

[0029] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A vehicle stability tester, comprising a tester body (1), characterized in that: A climbing frame is provided on one side of the main body (1) of the tester. The climbing frame includes a first frame (2) and a second frame (3). Several moving units are provided between the first frame (2) and the second frame (3). The moving unit includes a screw (4) and several control sleeves (5). The screw (4) includes a first thread (6) and a second thread (7) with opposite directions. Control sleeves (5) are provided on both the first frame (2) and the second frame (3). When the screw (4) rotates, the first frame (2) and the second frame (3) move towards each other or move in opposite directions.

2. The vehicle stability tester according to claim 1, characterized in that: The bottom of the climbing frame is equipped with several casters (8) for movement.

3. The vehicle stability tester according to claim 2, characterized in that: The first frame (2) is equipped with a rotating motor (9) that matches the screw (4), and the rotating motor (9) is connected to the screw (4).

4. The vehicle stability tester according to claim 3, characterized in that: The climbing frame includes several supports (10), and the control sleeve (5) is fixed on the supports (10).

5. The vehicle stability tester according to claim 4, characterized in that: The climbing frame also includes a climbing board (11), one end of which is connected to a connecting plate (12), and the other end of which rests against the ground.

6. The vehicle stability tester according to claim 5, characterized in that: The connecting plate (12) rotates on the climbing plate (11) via several hinges (13).

7. The vehicle stability tester according to claim 2, characterized in that: The caster wheel (8) includes a mounting plate (14), a rotating column (15), a fork (16), and a wheel (17). The fork (16) is connected to the mounting plate (14) via the rotating column (15).

8. The vehicle stability tester according to claim 7, characterized in that: A friction block (18) is slidably disposed in the fork (16). After the friction block (18) slides to abut against the wheel (17), the omnidirectional wheel (8) is locked.

9. The vehicle stability tester according to claim 8, characterized in that: A slide rail (19) is provided in the fork (16), and the friction block (18) slides in the slide rail (19). At the same time, an electromagnet (20) is provided on the upper side of the slide rail (19), and a spring (21) is provided between the electromagnet (20) and the friction block (18). When the electromagnet (20) is energized, the friction block (18) does not contact the wheel (17) under the action of magnetic force.

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