Vehicle test centering mechanism

Abstract

The utility model discloses a vehicle test centering mechanism, and belongs to the technical field of vehicle detection. The vehicle test centering mechanism comprises a pushing mechanism. The synchronizing mechanism is provided with a gear and a rack, the rack is meshed with the gear, and the rack can drive the pushing mechanism to synchronously move towards the two sides; the driving mechanism is connected with the pushing mechanism through a second connecting piece. The driving mechanism drives the second push plate of the pushing mechanism to move, the synchronizing mechanism drives the first push plate and the second push plate to synchronously move towards the inner side face of a vehicle tire and pushes the vehicle tire to move, so that the central symmetry plane of the vehicle coincides with the central symmetry plane of the centering mechanism, and the vehicle is accurately placed at the center position of the testing equipment. And the test accuracy is ensured. The driving mechanism and the push plate are connected through the floating connector, the floating connector can move independently, parts at the two ends are allowed to move in different angles and directions, and the floating connector can absorb errors between the air cylinder and the push part, so that the air cylinder moves more smoothly and cannot be stuck.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of vehicle test centering mechanism, belong to vehicle detection technical field. BACKGROUND

[0002] In the test project of vehicle, some parameters need to be measured under specific conditions. If the vehicle position is not accurate, it may cause the readings of sensors, dynamometers or other test equipment to deviate. Through the centering mechanism, the vehicle can be accurately placed in the center position of the test equipment, thereby reducing the error caused by position deviation.

[0003] Currently, the commonly used centering mechanism in vehicle testing mainly realizes the synchronous movement of left and right push rods through a connecting rod mechanism. However, this structure has many problems, such as complex design of connecting rod mechanism, easy to jam; and when maintaining, the entire centering mechanism needs to be lifted and operated from the bottom, which brings great inconvenience to later maintenance. In addition, some centering mechanisms use synchronous belts to realize the synchronous movement of left and right push plates, but since the synchronous belt is a flexible structure, the vehicle is prone to displacement during testing, affecting the stability of testing. More importantly, the existing technology generally has poor synchronization, which makes it difficult to accurately find the center line of symmetry of the vehicle, and further distorts the test data. SUMMARY

[0004] The utility model provides a kind of vehicle test centering mechanism to solve the problems of complex design of centering mechanism in prior art, easy to jam, not conducive to later maintenance, vehicle prone to displacement during testing, affect testing stability, and poor synchronization, which makes it difficult to accurately find the center line of symmetry of the vehicle, and further distorts the test data.

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

[0006] The utility model provides a kind of vehicle test centering mechanism, comprising

[0007] Pushing mechanism, vehicle tire is located at the two sides of the pushing mechanism;

[0008] Synchronization mechanism, the synchronization mechanism is provided with gear and rack, the rack is engaged with the gear, and the rack can drive pushing mechanism to move synchronously to both sides;

[0009] Driving mechanism, connected with the pushing mechanism through second connecting piece.

[0010] In an embodiment of the utility model, the pushing mechanism includes a first push plate and a second push plate, and the second push plate is connected with the second connecting piece.

[0011] In one embodiment of this utility model, the synchronization mechanism is provided with a first connecting member and a shaft, the first push plate and the second push plate are connected to the rack through the first connecting member, and the shaft is rotatably connected to the gear shown.

[0012] In one embodiment of this utility model, the second connector is a floating joint. The floating joint can move on its own, allowing the components at both ends to move at different angles and directions. The floating joint can absorb the error between the cylinder and the pushing component, making the cylinder move more smoothly and preventing it from jamming.

[0013] In one embodiment of this utility model, a base is included, and the synchronization mechanism and the drive mechanism are mounted on the base.

[0014] In one embodiment of this utility model, a sliding mechanism is included, and the pushing mechanism is slidably connected to the base through the sliding mechanism.

[0015] In one embodiment of this invention, rollers are installed on both sides of the base, with the highest point of the rollers flush with the ground. This prevents additional resistance when a vehicle drives onto the base.

[0016] In one embodiment of this invention, the central axis of the idler roller is aligned with the vehicle's forward direction. This ensures that the vehicle is not affected by the rotation of the idler roller while in motion.

[0017] In one embodiment of this utility model, a limit switch is also included, which is mounted on the base. When the push plate is pulled back to its initial state by the drive mechanism, the limit switch is triggered, causing the push plate to stop moving and ensuring that the centering mechanism is in the retracted state before the next vehicle centering.

[0018] In one embodiment of this utility model, a fixing structure is installed at the bottom of the base. Each fixing structure is equipped with an adjustable shim for adjusting the height of the centering mechanism.

[0019] Beneficial effects

[0020] The vehicle testing centering mechanism provided by this utility model has a simple structure, including a pushing mechanism, a synchronizing mechanism, and a driving mechanism. The driving mechanism drives the second push plate of the pushing mechanism to move, and the synchronizing mechanism drives the first and second push plates to move synchronously towards the inner side of the vehicle tire, pushing the vehicle tire to move so that the central symmetry plane of the vehicle coincides with the central symmetry plane of the centering mechanism. The vehicle is precisely placed in the center position of the testing equipment, ensuring the accuracy of the test. The gears and racks in the synchronizing mechanism are rigidly connected, so the vehicle will not shift during the test, ensuring the stability of the test.

[0021] The driving mechanism of the vehicle testing centering mechanism is connected with the push plate through a floating joint, the floating joint can move by itself, allows the components at two ends to move at different angles and directions, the floating joint can absorb the error between the cylinder and the pushing component, makes the cylinder move more smoothly, and will not be stuck. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A perspective view of a vehicle testing centering mechanism is provided in the utility model;

[0023] Figure 2 A perspective view of a vehicle testing centering mechanism is provided in the utility model; Figure 1 A partial enlarged view at A in the figure;

[0024] Figure 3 A sectional view of a vehicle testing centering mechanism is provided in the utility model;

[0025] Figure 4 A sectional view of a vehicle testing centering mechanism is provided in the utility model; Figure 3 A partial enlarged view at B in the figure;

[0026] In the figure: 1, base; 2, sliding mechanism; 21, guide rail; 22, sliding block; 3, pushing mechanism; 31, first push plate; 32, second push plate; 4, synchronous mechanism; 41, rack; 42, first connecting piece; 43, gear; 44, shaft; 5, driving mechanism; 6, second connecting piece; 7, carrier roller; 8, travel switch; 9, fixed structure. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to 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 protection scope of the utility model.

[0028] In the utility model, unless explicitly defined and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrated; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0029] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under" can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them.Moreover, first feature is in second feature "on", "above" and "upper surface" includes that first feature is directly above and obliquely above second feature, or only indicates that first feature horizontal height is higher than second feature.First feature is in second feature "under", "below" and "under surface" includes that first feature is directly below and obliquely below second feature, or only indicates that first feature horizontal height is less than second feature.

[0030] As Figures 1 to 4 shown, the embodiment of the application provides a vehicle testing centering mechanism for accurately placing a vehicle in the center position of a test device, reducing test errors caused by position deviation.The centering mechanism comprises a base 1, a sliding mechanism 2, a pushing mechanism 3, a synchronous mechanism 4 and a supporting roller 7.The base 1 is installed in a pit in a laboratory, the synchronous mechanism 4 is installed on the base 1, the pushing mechanism 3 is located on the side, away from the base 1, of the synchronous mechanism 4, and the synchronous mechanism 4 can make the pushing mechanism 3 move synchronously to both sides of the base 1.The sliding mechanism 2 is arranged on both sides of the pushing mechanism 3, and the pushing mechanism 3 is connected to the base 1 through the sliding mechanism 2.The base 1 is also provided with a driving mechanism 5, and the driving mechanism 5 is connected to the pushing mechanism 3 through a second connecting piece 6.The supporting roller 7 is symmetrically installed on both sides of the base 1 and connected to the base 1, the supporting roller 7 has a cylindrical structure and can rotate around a center axis, and when the pushing mechanism 3 pushes the vehicle to be tested to move, the rotation of the supporting roller 7 can reduce the friction between the base 1 and the vehicle tires, so that the pushing mechanism 3 can move the vehicle to the center position.The driving mechanism 5 drives the pushing mechanism 3 to move, and under the action of the synchronous mechanism 4, the pushing mechanism 3 simultaneously slides to both sides of the base 1 and pushes the vehicle on the supporting roller 7 to move, so that the center axis of the vehicle is aligned with the center position of the test device, thereby realizing the centering of the vehicle to be tested and ensuring the accuracy of vehicle testing.

[0031] In some embodiments, the pushing mechanism 3 has two push plates, namely a first push plate 31 and a second push plate 32, and the first push plate 31 and the second push plate 32 are symmetrically arranged on both sides of the base 1 and connected to the base 1 through the sliding mechanism 2.Both the first push plate 31 and the second push plate 32 are connected to the synchronous mechanism 4, and the second push plate 32 is connected to the driving mechanism 5 through the second connecting piece 6.The driving mechanism 5 can drive the second push plate 32 to reciprocate along the axis direction of the sliding mechanism 2, and drive the synchronous mechanism 4 to move, so that the synchronous mechanism 4 makes the second push plate 32 and the first push plate 31 move simultaneously or move towards each other.

[0032] In some embodiments, the synchronous mechanism 4 is provided with a gear 43 and a shaft 44, the shaft 44 is fixedly installed on the base 1, the gear 43 is sleeved on the outer periphery of the shaft 44 and can rotate around the shaft 44, and the two are connected through a bearing. The gear 43 is provided with a rack 41 on both sides, the rack 41 is engaged with the gear 43, and the first connecting piece 42 is slidably connected with the base 1, the first connecting piece 42 has two and is connected with the two racks 41 respectively. The side of the first connecting piece 42 away from the base 1 is connected with the first push plate 31 and the second push plate 32 respectively. The second push plate 32 is driven by the driving mechanism 5 to move the rack 41 below the second push plate 32, the rack 41 is engaged with the gear 43, the gear 43 is driven to rotate around the shaft 44, thereby driving the rack 41 below the first push plate 31 to move and driving the first push plate 31 to move, so that the first push plate 31 and the second push plate 32 move synchronously to both sides. The distance of the two push plates pushing to both sides is always equal, so that the distance between the outermost side of the push plate and the center of the centering mechanism is always equal. The inner side of the push plate pushes the vehicle tire, the vehicle moves left and right on the carrier roller 7, so that the center symmetry plane of the vehicle coincides with the center symmetry plane of the centering mechanism, thereby accurately determining the position of the center symmetry plane of the vehicle, and the vehicle is accurately placed in the center position of the test equipment, thereby ensuring the accuracy of the test. In addition, the gear 43 and the rack 41 are rigidly connected, and the vehicle will not be displaced during the test, thereby ensuring the stability of the test.

[0033] In some embodiments, the sliding block mechanism 2 includes a guide rail 21 and a sliding block 22, the guide rail 21 is slidably connected with the sliding block 22. The guide rail 21 is installed at both ends of the first push plate 31 and the second push plate 32 and is perpendicular to the center axis of the carrier roller 7, and the sliding block 22 is installed on the base 1. Through the cooperation of the guide rail 21 and the sliding block 22, the first push plate 31 and the second push plate 32 can slide towards each other or away from each other on the base 1.

[0034] Further, in some embodiments, as shown in Figure 3 and Figure 4 , the second connecting piece 6 is a floating joint, one end of the floating joint 6 is connected with the driving mechanism 5, and the other end is connected with the second push plate 32. The floating joint 6 can move by itself, allowing the components at both ends to move at different angles and directions, and the floating joint can absorb the error between the cylinder and the pushing component, making the cylinder move more smoothly and not be stuck. The floating joint simplifies the assembly process of the product, can reduce the manufacturing and installation requirements of the centering mechanism, and is convenient to connect.

[0035] Further, in some embodiments, the highest point of the circular arc surface of the installed carrier roller 7 should be flush with the ground, so that when the vehicle drives onto the base 1, no additional resistance is generated. The center axis direction of the carrier roller 7 is consistent with the forward direction of the vehicle, so as to ensure that the vehicle will not be affected by the rotation of the carrier roller 7 during driving.

[0036] In some embodiments, the base 1 is installed in the pit of the laboratory through fixing structures 9, a plurality of fixing structures 9 are distributed on both sides of the base 1, each fixing structure 9 is provided with an adjustable height spacer, and the highest point of the arc surface of the supporting roller 7 is flush with the ground by adjusting the height of the bottom spacer.

[0037] In some embodiments, the base 1 is installed in the pit of the laboratory through fixing structures 9, a plurality of fixing structures 9 are distributed on both sides of the base 1, each fixing structure 9 is provided with an adjustable height spacer, and the highest point of the arc surface of the supporting roller 7 is flush with the ground by adjusting the height of the bottom spacer.

[0038] Optionally, the driving mechanism 5 is a pneumatic cylinder, which has simple structure, large output force, strong adaptability, can work normally in high-temperature and low-temperature environments, has dustproof and waterproof capabilities, and is convenient to replace and maintain.

[0039] The utility model discloses a centering mechanism for vehicle, which comprises a base 1, a plurality of supporting rollers 7 are arranged on both sides of the base 1, a driving mechanism 5 is arranged on the base 1, and a second connecting piece 6 is arranged on the driving mechanism 5.

[0040] The technical features of the above embodiments can be combined arbitrarily, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not contradict, they should be considered as the scope of the present application.

[0041] The above embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the invention patent. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the utility model, some modifications and improvements can be made, which are all within the protection scope of the utility model.

[0042] The principle and implementation mode of the present application are described by using specific embodiments, and the above embodiment is only used for helping to understand the method and core idea of the present application. It should be pointed out that, for ordinary skilled persons in the technical field, without departing from the principle of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A vehicle testing alignment mechanism, characterized in that, include: The driving mechanism (3) has vehicle tires located on both sides of it; Synchronization mechanism (4), the synchronization mechanism (4) is provided with gear (43) and rack (41), the rack (41) meshes with the gear (43), the rack (41) can drive the push mechanism (3) to move synchronously to both sides; The drive mechanism (5) is connected to the push mechanism (3) via a second connector (6).

2. The vehicle testing alignment mechanism according to claim 1, characterized in that, The pushing mechanism (3) includes a first push plate (31) and a second push plate (32), the second push plate (32) being connected to the second connecting member (6).

3. The vehicle testing alignment mechanism according to claim 2, characterized in that, The synchronization mechanism (4) is provided with a first connector (42) and a shaft (44). The first push plate (31) and the second push plate (32) are connected to the rack (41) through the first connector (42). The shaft (44) is rotatably connected to the gear (43) shown.

4. A vehicle testing alignment mechanism according to claim 3, characterized in that, The second connector (6) is a floating joint.

5. A vehicle testing alignment mechanism according to claim 1, characterized in that, The system includes a base (1), and the synchronization mechanism (4) and the drive mechanism (5) are mounted on the base (1).

6. A vehicle testing alignment mechanism according to claim 5, characterized in that, It includes a sliding mechanism (2), and the pushing mechanism (3) is slidably connected to the base (1) through the sliding mechanism (2).

7. A vehicle testing alignment mechanism according to claim 5, characterized in that, The base (1) is equipped with rollers (7) on both sides, and the highest point of the rollers (7) is flush with the ground.

8. A vehicle testing alignment mechanism according to claim 7, characterized in that, The central axis of the idler roller (7) is aligned with the direction of vehicle movement.

9. A vehicle testing alignment mechanism according to claim 5, characterized in that, It also includes a limit switch (8) mounted on the base (1).

10. A vehicle testing alignment mechanism according to claim 5, characterized in that, A fixing structure (9) is installed at the bottom of the base (1).

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