Wheel clamp for whole vehicle drum test

Abstract

In order to solve the problems that a wheel clamp is difficult to disassemble and assemble, a tire is easy to deform due to extrusion and the like, the utility model provides a wheel clamp for a whole vehicle drum test, which comprises a floor; the clamp base is slidably connected to the upper portion of the floor in the left-right direction, a through hole penetrating front and back is formed in the upper portion of the clamp base, and arc-shaped grooves distributed in the front-back direction are formed in the inner wall of the through hole; the chuck base is connected into the through hole of the clamp base in a front-back sliding mode. The claw disc adjusting bolt and the chuck adjusting bolt are coaxially and fixedly connected with a worm rotationally arranged in the arc-shaped groove of the clamp base, the worm is rotationally connected into the arc-shaped groove, and a tooth-shaped groove matched with the worm is formed in the surface of the chuck base. The chuck is fixedly connected to the axial end part of the chuck base; the device can adapt to the drum experiments of vehicles with different axle distances, the tire is prevented from being burst due to clamping, and the device is convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle testing, in particular to a wheel clamp for a whole vehicle drum test. Background Art

[0002] For the whole vehicle to be tested on a single drum, the test vehicle is a two-wheel drive vehicle, and the driving wheel is on the drum. In order to ensure the safety of the test, the driven wheel is fixed to prevent the vehicle from rushing out of the drum. The existing wheel fixing fixture uses two steel plates to clamp the front and rear sides of the tire in the direction of wheel travel. The fixture fixes the driven wheel by installing T-bolts to hook the groove guide rails of the iron floor.

[0003] Although this method can effectively fix the driven wheel, it has the following defects:

[0004] 1. The clamping bolts are subject to greater force and are prone to deformation and getting stuck in the trench, making disassembly and assembly difficult;

[0005] 2. The inevitable forward and backward movement of the vehicle during the test may cause the tires to be squeezed and deformed, posing the risk of tire blowout. Utility Model Content

[0006] In order to solve the above problems, the utility model provides a wheel fixture for a whole vehicle drum test, and the technical solution adopted is as follows:

[0007] A wheel fixture for a whole vehicle drum test, characterized by comprising:

[0008] floor;

[0009] A fixture base, the fixture base is slidably connected to the top of the floor along the left-right direction, a through hole is provided on the upper part of the fixture base and a through hole is provided on the inner wall of the through hole and an arc groove is distributed along the front-back direction;

[0010] A chuck base, the chuck base being slidably connected to the through hole of the fixture base in a forward and backward manner;

[0011] A claw plate adjusting bolt, wherein the chuck adjusting bolt is coaxially fixedly connected with a worm rotatably arranged in an arc groove of the clamp base, the worm rotatably connected in the arc groove, and a toothed groove matching with the worm is arranged on the surface of the chuck base;

[0012] A chuck, wherein the chuck is fixedly connected to an axial end of the chuck base;

[0013] And a fixed claw adjusting bolt rod is arranged on the chuck base and is used for driving the clamping claws on the chuck to clamp and loosen.

[0014] Furthermore, a sliding block is fixedly connected to the surface of the chuck base, and an inner wall of the through hole on the fixture base is provided with a sliding groove whose length is distributed along the front-to-back direction and cooperates with the sliding block to slide.

[0015] Furthermore, a guide groove is arranged on the floor, and a guide rail which slides in cooperation with the guide groove is arranged at the lower end of the clamp base.

[0016] Furthermore, threaded holes distributed at corresponding positions are provided on the floor and the fixture base, and the two are fixedly connected by bolts.

[0017] The beneficial effects of the utility model are:

[0018] 1. The chuck base can be slidably connected above the floor and can be fixed in position, so it can cope with models with different wheelbases without repeatedly disassembling and assembling the fixture;

[0019] 2. The wheel is fixed by clamping the wheel spokes, which avoids the problem of tire deformation caused by the current method of clamping the tire, which may easily lead to tire blowout;

[0020] 3. The chuck base and the chuck can be driven to move forward and backward along the fixture base by adjusting the bolt rod and the worm through the claw plate, so as to facilitate the claw plate to withdraw from the use position and avoid the problem of the vehicle being unable to enter the drum due to the interference of the claw plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the utility model

[0022] Figure 2 This is the main view of the structure of the utility model

[0023] Figure 3 for Figure 2 Middle AA section view

[0024] Figure 4 Schematic diagram of the connection structure between the chuck base and the floor

[0025] Figure 5 Schematic diagram of the chuck structure

[0026] Among them, 1-floor, 2-clamp base, 3-chuck base, 4-chuck, 5-claw plate adjusting bolt rod, 6-worm, 7-fixed claw adjusting bolt, 8-slider, 9-slide, 10-guide rail, 11-guide groove, 12-bolt, 13-bevel gear rod, 14-turbine chuck, 15-fixed claw. DETAILED DESCRIPTION

[0027] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0028] In the description of the utility model, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the viewing direction or position relationship, and are only for the convenience of describing the utility model, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0029] like Figures 1 to 5 The wheel fixture for the whole vehicle drum test shown includes a floor 1, a fixture base 2 slidably connected to the floor 1 left and right, and a chuck base 3 slidably connected to the fixture base 2 front and back. The upper end surface of the floor 1 is provided with a guide groove 11 horizontally distributed in the left and right directions, and the lower end of the fixture base 2 is provided with a guide rail 10. The fixture base 2 is slidably connected to the top of the floor 1 left and right through the guide rail 10 and the guide groove 11, and threaded holes distributed in corresponding positions are provided between the two, which are fixedly connected by bolts.

[0030] The upper part of the clamp base 2 is a cylindrical shell that penetrates from front to back, and the left and right sides of the inner wall are symmetrically provided with sliding grooves 9. The upper end of the inner wall is provided with an arc groove distributed in the front and back directions. A worm 6 is provided in the arc groove. The worm 6 is rotatably connected to the inside of the arc groove and the rear end is coaxially fixedly connected to the claw plate adjusting bolt rod 5.

[0031] The chuck base 3 is a cylinder as a whole, and sliders 8 are symmetrically arranged on the left and right sides in the front and rear directions. The chuck base 3 cooperates with the slide groove 9 through the slider 8, so that it can be slidably connected to the inside of the clamp base 2 forward and backward, and a toothed groove is arranged at the upper end of the outer surface of the chuck base 3. The toothed grooves are distributed in multiple groups along the length direction and are connected with the worm gear for transmission. By rotating the claw plate adjusting bolt rod 5, the worm gear 6 can be driven to rotate in the arc groove, thereby driving the chuck base 3 to move forward and backward through the cooperation of the toothed groove and the worm gear 6.

[0032] The chuck 4 is fixed to the front end of the chuck base 3. Figure 5 As shown, a three-jaw chuck includes a bevel gear rod 13, a turbine chuck 14, a fixed jaw 15 and a fixed jaw adjusting bolt rod 7. The fixed jaw 15 can be driven by the fixed jaw adjusting bolt rod to clamp or release. This structure is a conventional component, so it will not be described in detail.

[0033] When the device is used to carry out a whole vehicle drum test, after the vehicle driving wheel reaches the correct position of the drum, the clamp base 2 slides left and right along the floor 1 through the guide rail 10 and the guide groove 11, and is fixed by the bolt 12 after moving to the appropriate position, so that the clamp axis is directly opposite to the driven wheel axis of the vehicle to be clamped, so as to adapt to vehicles with different wheelbases; the claw plate adjusting bolt rod 5 is rotated to drive the worm 6 to rotate, thereby driving the chuck base 3 to move forward and backward, so as to drive the claw chuck 4 to move forward and backward, so that the chuck 4 is withdrawn from the use position, avoiding the interference of the chuck 4 and causing the vehicle to be unable to enter the drum; the fixed claw 15 is adjusted by the fixed claw adjusting bolt 7, so as to clamp the spokes of wheel hubs of different sizes to achieve the fixation of the wheel.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements can be made without departing from the principle of the present invention, and these improvements should also be regarded as the protection scope of the present invention.

Claims

1. A wheel fixture for a complete vehicle drum test, characterized in that: include: floor; A fixture base, the fixture base is slidably connected to the top of the floor along the left-right direction, a through hole is provided on the upper part of the fixture base and the inner wall of the through hole is provided with arc grooves distributed along the front-back direction; A chuck base, the chuck base being slidably connected to the through hole of the fixture base in a forward and backward manner; A claw plate adjusting bolt, wherein the chuck adjusting bolt is coaxially fixedly connected with a worm rotatably arranged in an arc groove of the clamp base, the worm rotatably connected in the arc groove, and a toothed groove matching with the worm is arranged on the surface of the chuck base; A chuck, wherein the chuck is fixedly connected to an axial end of the chuck base; And a fixed claw adjusting bolt rod is arranged on the chuck base and is used for driving the clamping claws on the chuck to clamp and loosen.

2. The wheel fixture for the whole vehicle drum test according to claim 1, characterized in that: A sliding block is fixedly connected to the surface of the chuck base, and a sliding groove whose length is distributed along the front-back direction and slides in cooperation with the sliding block is arranged on the inner wall of the through hole on the clamp base.

3. The wheel fixture for the whole vehicle drum test according to claim 1, characterized in that: The floor is provided with a guide groove, and the lower end of the clamp base is provided with a guide rail which slides in cooperation with the guide groove.

4. The wheel fixture for a complete vehicle drum test according to claim 1 or 3, characterized in that: The floor and the fixture base are provided with threaded holes distributed at corresponding positions, and the two are fixedly connected by bolts.

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