Four-wheel positioning and centering device

Abstract

The utility model discloses a four-wheel positioning and centering device, and belongs to the technical field of vehicle detection. The four-wheel positioning and centering device comprises a sliding plate, the rollers are connected with the sliding plate and comprise a central roller and side rollers, and the side rollers are symmetrically arranged on the two sides of the central roller; the bearing is embedded in the roller; the driving mechanism is connected with the sliding plate. The center roller and the two side rollers are arranged in a triangular shape, contact points of the rollers and the tire are increased, the contact area is increased, the problems that the centering device vibrates and test data are affected due to the fact that the tread pattern of the off-road tire is deep and the pattern distance is large are solved, and the stability of the centering device is improved. The central axes of the three rollers are on the same plane, so that the three rollers can be in contact with a tire at the same time, bearings are also arranged in the rollers, and the rollers realize autorotation through the bearings, so that the problem of blocking of the rollers is avoided, a vehicle is ensured to be in the central position in the positioning process, and the test stability is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a four wheel positioning centering device belongs to vehicle detection technical field. BACKGROUND

[0002] Four wheel positioning test is usually carried out in the vehicle detection process, and four wheel positioning can ensure that the vehicle maintains straight line stability during driving, reduces the deviation phenomenon caused by improper tire angle. Correct positioning parameters can make the vehicle stable during high-speed driving, avoid the risk of side inclination and loss of control caused by tire angle deviation. Through four wheel positioning adjustment, the tire can be uniformly contacted with the ground, and the service life of the tire is prolonged.

[0003] During the four wheel positioning test of the automobile, the tire rotates on the equipment, and the centering roller on the centering device is pushed to the side of the tire under the action of the cylinder extension. However, due to the large diameter of the off-road tire, the tread is deeper than the ordinary tread, and the distance between the treads is larger. During the continuous contact between the single centering roller and the off-road tire, the roller contacts the bottom of the tread and the top of the tread alternately, causing large vibration of the centering device and causing the tire to shake, resulting in inaccurate test data. UTILITARY MODEL

[0004] The utility model provides a four wheel positioning centering device to solve the problem that the diameter of the off-road tire is large, the tread is deeper than the ordinary tread, and the distance between the treads is large, which causes vibration of the centering device, causes the tire to shake, and causes inaccurate test data.

[0005] The utility model realizes the following technical scheme:

[0006] The utility model provides a four wheel positioning centering device, which comprises

[0007] A sliding plate;

[0008] A roller is connected with the sliding plate, and the roller is provided with a center roller and a side roller, and the side roller is symmetrically arranged on both sides of the center roller;

[0009] A bearing is embedded in the roller;

[0010] A driving mechanism is connected with the sliding plate.

[0011] In an embodiment of the utility model, a connecting piece and a shaft sleeve are provided, the roller is sleeved on the outer periphery of the shaft sleeve, and the roller is connected with the sliding plate through the connecting piece and the shaft sleeve. The shaft sleeve can fix the position of the roller and prevent deviation caused by vibration during movement.

[0012] In an embodiment of the utility model, the central axis of the center roller and the central axis of the side roller are in the same plane. It ensures that the three rollers can simultaneously abut against the tire.

[0013] In an embodiment of the utility model, the central axis of the center roller intersects the central axis of the side roller, and the included angle is an acute angle.

[0014] In an embodiment of the utility model, the roller is provided with at least three rollers, and the three rollers are arranged in a triangular shape. The stability of the device is increased, the problem that the test data is inaccurate due to the large vibration of the centering device and the shaking of the tire caused by the contact of the centering roller with the bottom and top of the tread in the process of continuously contacting the off-road tire is solved, the centering requirement of the conventional tire is met, and the versatility of the equipment is increased.

[0015] In an embodiment of the utility model, each roller is provided with at least two bearings, and the bearings are sleeved on the outer periphery of the shaft sleeve. The roller rotates by the bearings, and the problem of being stuck is avoided.

[0016] In an embodiment of the utility model, a guide rail is installed on one side of the sliding plate.

[0017] In an embodiment of the utility model, a sliding block is connected with the guide rail in sliding mode.

[0018] In an embodiment of the utility model, a base is further included, and the driving mechanism and the sliding block are installed on the base.

[0019] In an embodiment of the utility model, the driving mechanism is a pneumatic cylinder.

[0020] Advantages

[0021] The four-wheel positioning and centering device comprises a sliding plate, a driving mechanism and a roller, the driving mechanism drives the sliding plate to move, the sliding plate pushes the roller at the front end to approach the tire, the center roller and the two side rollers are arranged in a triangular shape, the contact points of the roller and the tire are increased, the contact area is increased, the problem that the centering device vibrates due to the deep tread and large pitch of the off-road tire is eliminated, the stability of the centering device is increased, the central axes of the three rollers are in the same plane, the three rollers can simultaneously contact the tire, bearings are arranged in the roller, the roller rotates by the bearings, the problem of being stuck is avoided, the vehicle is ensured to be in the central position in the positioning process, and the stability of the test is ensured. DRAWINGS

[0022] Fig. 1The utility model provides four wheel alignment centering device use state's perspective view is provided;

[0023] Fig. 2 The utility model provides four wheel alignment centering device's perspective view is provided;

[0024] Fig. 3 The utility model provides four wheel alignment centering device still another perspective view's perspective view is provided;

[0025] Fig. 4 The utility model provides four wheel alignment centering device's sectional view is provided;

[0026] In the drawing: 1, base, 2, support, 3, drive mechanism, 4, sliding plate, 5, guide rail, 6, sliding block, 7, gyro wheel, 71, center gyro wheel, 72, side gyro wheel, 8, bearing, 9, connecting piece, 10, shaft sleeve, 11, tire. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0028] In the utility model, unless another explicit provision and limitation, the terms "connected", "connected", "fixed" should be broad sense understanding, for example, can be fixed connection, can also be detachable connection, or integrated, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through the intermediate medium, can be the communication inside two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] In the utility model, unless another explicit provision and limitation, the first feature is "on" or "under" the second feature, which can include direct contact between the first and second features, or indirect contact between the first and second features through another feature therebetween. Moreover, the first feature "on", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0030] As Figs. 1 to 4As shown, the embodiment of the present application provides a four-wheel alignment centering device for ensuring that the vehicle is in the correct center position during the alignment process. The bottom of the four-wheel alignment centering device is connected to the base 1, and the base 1 provides support for the entire four-wheel alignment centering device.

[0031] In some embodiments, the four-wheel alignment centering device is provided with a driving mechanism 3, which is installed on the base 1 through the support 2, and the driving mechanism 3 provides power for the device. Preferably, in the present embodiment, the driving mechanism 3 is a pneumatic cylinder.

[0032] In some embodiments, one side of the driving mechanism 3 is connected to a sliding plate 4, one side of the sliding plate 4 is installed with a guide rail 5, the guide rail 5 is provided with a sliding block 6 away from one side of the sliding plate 4, and the bottom of the sliding block 6 is fixedly connected to the base 1. The guide rail 5 is in sliding connection with the sliding block 6. The driving mechanism 3 drives the sliding plate 4 to move, the sliding plate 4 drives the guide rail 5 to make reciprocating motion along the sliding block 6, and the guide rail 5 provides guidance for the movement of the sliding plate 4.

[0033] In some embodiments, the sliding plate 4 is installed with a roller 7 away from one end of the base 1, the roller 7 is internally provided with a connecting piece 9 and a shaft sleeve 10, one end of the connecting piece 9 is connected to the shaft sleeve 10, the roller 7 is sleeved between the connecting piece 9 and the shaft sleeve 10, and the roller 7 is connected to the sliding plate 4 through the connecting piece 9 and the shaft sleeve 10, so that the roller 7 can make reciprocating motion together with the sliding plate 4. The shaft sleeve 10 can fix the position of the roller 7 to prevent deviation due to vibration and the like during movement.

[0034] Further, in some embodiments, two bearings 8 are symmetrically arranged inside each roller 7, and the bearings 8 are sleeved on the outer periphery of the shaft sleeve 10. The bearings 8 enable the roller 7 to rotate when the roller 7 abuts against the tire 11, and the roller 7 rotates by the bearings 8 to avoid the problem of being stuck.

[0035] Further, in some embodiments, the three rollers include a center roller 71 and two side rollers 72. The center roller 71 is located on the center axis of the slide plate 4, and the two side rollers 72 are symmetrically distributed on both sides of the center roller 71 and are arranged at an angle, and the center axes of the two side rollers 72 and the center roller 71 intersect at an acute angle. The center axes of the two side rollers 72 and the center roller 71 are in the same plane, which ensures that the three rollers can simultaneously abut against the tire 11. The center roller 71 and the side roller 72 are connected to the slide plate 4 through the connecting piece 9 and the shaft sleeve 10 and move together with the slide plate 4. Under the driving of the slide plate 4, the three centering rollers can simultaneously extend and simultaneously contact the side surface of the tire 11. The contact points between the centering rollers 7 and the tire 11 increase, the contact area increases, and the three rollers are arranged in a triangular shape, which increases the stability of the centering device and solves the problem that the centering device vibrates greatly and the tire shakes during the continuous contact between the centering roller and the off-road tire, resulting in inaccurate test data. The centering device can meet the centering requirements of conventional tires and increase the versatility of the equipment.

[0036] Optionally, the connecting piece 9 is a bolt, which has high connection strength, low cost, can be reused, is easy to disassemble, and is conducive to the installation and replacement of the roller.

[0037] The working principle of the utility model is as follows: during the four-wheel positioning test, the vehicle drives to the test station, the entire centering device is installed on the base 1, the tire 11 starts to rotate, the driving mechanism 3 of the centering device drives the slide plate 4 to move, the slide plate 4 pushes the front roller 7 to approach the tire 11, the center roller 71 and the two side rollers 72 are arranged in a triangular shape, which increases the contact points between the roller 7 and the tire 11 and increases the contact area, eliminates the problem that the vibration of the centering device caused by the deep tread and large pitch of the off-road tire affects the test data, and increases the stability of the centering device. The center axes of the three rollers are in the same plane, which ensures that the three rollers can simultaneously contact the tire 11. The roller 7 is also provided with a bearing 8, and the roller 7 rotates through the bearing 8, which avoids the problem of jamming of the roller 7 and ensures that the vehicle is in the center position during positioning, thereby ensuring the stability of the test.

[0038] The technical features of the above embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not contradict, they should be considered as within the scope of the present disclosure.

[0039] The above embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the scope of the invention patent. It should be pointed out that for ordinary skilled person in the art, without departing from the concept of the utility model, several modifications and improvements can be made, which belong to the protection scope of the utility model.

[0040] The principle and implementation manner of the utility model are described by applying specific embodiments in this paper, and the above embodiment description is only used to help understand the method and core idea of the utility model. It should be pointed out that for ordinary skilled person in the art, without departing from the principle of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the utility model claims. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A four-wheel alignment centering device, characterized by, The utility model relates to a kind of skateboards, including: Skateboard (4); Roller (7), connected with the skateboard (4), the roller (7) is provided with central roller (71) and side roller (72), the side roller (72) is symmetrically arranged on the two sides of the central roller (71); Bearing (8), the bearing (8) is embedded in the roller (7); Driving mechanism (3), connected with the skateboard (4).

2. A four-wheel alignment centering device according to claim 1, wherein, Including connecting piece (9) and shaft sleeve (10), the roller (7) is sleeved on the outer periphery of the shaft sleeve (10), and is connected with the skateboard (4) by the connecting piece (9) and the shaft sleeve (10).

3. A four-wheel alignment centering device according to claim 2, wherein, The central roller (71) and the side roller (72) are in the same plane.

4. A four wheel alignment centering device according to claim 3, wherein, The central roller (71) and the side roller (72) intersect, and the included angle is acute.

5. A four wheel alignment centering device according to claim 4, wherein, The roller (7) is provided with at least three rollers, which are arranged in a triangular shape.

6. A four wheel alignment centering device according to claim 5, wherein, Each roller (7) is provided with at least two bearings (8), which are sleeved on the outer periphery of the shaft sleeve (10).

7. A four wheel alignment centering device according to claim 1 wherein, One side of the skateboard (4) is provided with a guide rail (5).

8. A four wheel alignment centering device according to claim 7, wherein, Including slider (6), the slider (6) is slidably connected with the guide rail (5).

9. A four wheel alignment centering device according to claim 8, wherein, Further including base (1), the driving mechanism (3) and the slider (6) are installed on the base (1).

10. A four wheel alignment centering device according to any one of claims 1 to 9, wherein, The driving mechanism (3) is a pneumatic cylinder.

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