Lead screw force loading device of tire testing machine

Abstract

The utility model discloses a lead screw force loading device of a tire testing machine, which relates to the technical field of tire testing machines and comprises a base, a support used for mounting a force applying mechanism is fixedly arranged on the upper surface of the base, a fixing frame and a mounting frame are further fixedly arranged on the upper surface of the base, and the force applying mechanism is low in noise and high in reliability. A hydraulic station does not need to be arranged, the occupied area is saved, a simulation piece used for simulating tire running is fixedly arranged on the inner wall of the installation frame, the simulation piece simulates friction borne by a tire in the running process, and a clamping mechanism used for clamping a tire body is fixedly arranged in the fixing frame. The clamping mechanism can clamp the tire body and can rotate at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of tire testing machines, in particular to a screw loading force device for a tire testing machine. Background Art

[0002] A tire testing machine is a machine for testing tires. It consists of a drum that simulates the road surface, a force-adding device, a transmission device, and a test and inspection system. It is mainly used to examine the service life of tires. The force-adding device is mainly used to simulate the load when the tire is running.

[0003] Normally, the load is mainly applied by the oil cylinder, and equipped with a force sensor to realize the feedback of the load. The servo valve is used to improve the accuracy of the loading force. In actual use, the servo valve is highly dependent on the particle size of the oil. Once the particle size exceeds the standard, the loading force will be out of control. In addition, in order to maintain the continuous loading of the force, the hydraulic device needs to run uninterruptedly. At the same time, the hydraulic station is very noisy during operation and occupies a relatively large area.

[0004] Based on this, a tire testing machine screw loading force device is now provided, which can eliminate the disadvantages of the existing device. Utility Model Content

[0005] The utility model aims to provide a tire testing machine lead screw loading force device to solve the problems in the background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A screw loading force device for a tire testing machine comprises a base, a bracket for installing a force-adding mechanism is fixedly provided on the upper surface of the base, a fixing frame and a mounting frame are also fixedly provided on the upper surface of the base, a simulation piece for simulating tire operation is fixedly provided on the inner wall of the mounting frame, and a clamping mechanism for clamping a tire body is fixedly provided inside the fixing frame.

[0008] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0009] In an optional solution: the simulation component includes a motor, which is fixed on the upper top surface of the mounting frame. The output end of the motor is connected to the rotating shaft through a first transmission belt. The rotating shaft is rotatably arranged on the side wall of the mounting frame, and a detection roller for detection is fixedly sleeved on the rotating shaft.

[0010] In an optional solution: the force-applying mechanism includes a support plate, the support plate is fixedly mounted on the side wall of the bracket, a servo motor is fixedly mounted on the support plate, a coupling is fixedly mounted on the output end of the servo motor, a screw device is fixedly connected to the output end of the coupling, and a pressure block for loading force is fixedly mounted on the output end of the screw device.

[0011] In an optional scheme: the clamping mechanism includes a driving shaft, the driving shaft and the rotating shaft are connected by a second transmission belt, the driving shaft is fixedly connected to the rotating shaft, a stop block is fixedly provided on the fixed sleeve of the rotating shaft, a limit block for limiting is fixedly provided on the top end of the rotating shaft, and a clamping member for clamping the tire body is provided on the sliding sleeve of the rotating shaft.

[0012] In an optional solution: the clamping member includes a spring, the spring is sleeved on the rotating shaft, one end of the spring is fixedly connected to the limit block, the other end of the spring is fixedly connected to the clamping block, and the clamping block is slidably sleeved on the rotating shaft.

[0013] In an optional solution, the cross-sections of the stopper and the clamping block are both trapezoidal in shape, with a small upper end and a large lower end.

[0014] In an optional solution: a rubber pad for anti-slip is fixedly provided on the bottom surface of the base.

[0015] In an optional solution: a buffer pad for buffering is fixedly provided on the surface of the pressing block.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. The utility model provides a loading force by setting a force adding mechanism, and the servo motor drives the lead screw, which has low noise and can realize the control of the loading force through the force feedback of the servo motor. It does not rely on the particle size of the oil and does not need to be equipped with a hydraulic station, thus saving floor space.

[0018] 2. The utility model sets a clamping mechanism. When in use, the tire body is sleeved on the rotating shaft, so that one side of the tire body contacts the side of the block. Under the action of the spring, the clamping block moves closer to the middle, and the side of the clamping block contacts the other side of the tire body, thereby achieving the effect of clamping the tire body while allowing it to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the simulation component of the utility model.

[0021] Figure 3 It is a side view of the simulation part of the utility model.

[0022] Figure 4 It is a structural schematic diagram of the clamping mechanism of the utility model.

[0023] Figure 5 It is an enlarged structural diagram of the clamping mechanism of the utility model.

[0024] Figure 6 It is a cross-sectional view of the utility model.

[0025] Notes on the accompanying drawings: 100, base; 101, bracket; 102, fixing frame; 103, mounting frame; 104, motor; 105, first transmission belt; 106, rotating shaft; 107, detection roller; 200, force-applying mechanism; 201, support plate; 202, servo motor; 203, coupling; 204, screw device; 205, pressure block; 300, clamping mechanism; 301, driving shaft; 302, second transmission belt; 303, rotating shaft; 304, stop block; 305, clamping block; 306, spring; 307, limit block; 308, tire body. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] Example 1

[0028] In one embodiment, Figure 1-Figure 6 As shown, a screw loading force device for a tire testing machine includes a base 100, a bracket 101 for mounting a force-adding mechanism 200 is fixedly provided on the upper surface of the base 100, a fixing frame 102 and a mounting frame 103 are also fixedly provided on the upper surface of the base 100, the force-adding mechanism 200 has low noise, does not need to be equipped with a hydraulic station, and saves floor space, the inner wall of the mounting frame 103 is fixedly provided with a simulation piece for simulating tire operation, the simulation piece simulates the friction suffered by the tire during driving, a clamping mechanism 300 for clamping a tire body 308 is fixedly provided in the fixing frame 102, and the clamping mechanism 300 clamps the tire body 308 and can rotate at the same time.

[0029] In one embodiment, Figure 2 and Figure 6As shown, the simulation component includes a motor 104, and the motor 104 is fixedly arranged on the upper top surface of the mounting frame 103. The output end of the motor 104 is connected to the rotating shaft 106 through the first transmission belt 105. The rotating shaft 106 is rotatably arranged on the side wall of the mounting frame 103. A detection roller 107 for detection is fixedly sleeved on the rotating shaft 106. During detection, the motor 104 is started, and the rotating shaft 106 is driven to rotate through the first transmission belt 105, so that the detection roller 107 rotates, simulating the friction experienced by the tire body 308 during operation.

[0030] In one embodiment, Figure 2 and Figure 3 As shown, the force-adding mechanism 200 includes a support plate 201, which is fixedly arranged on the side wall of the bracket 101, and a servo motor 202 is fixedly arranged on the support plate 201. A coupling 203 is fixedly arranged on the output end of the servo motor 202, and a screw device 204 is fixedly connected to the output end of the coupling 203. A pressure block 205 for loading force is fixedly arranged on the output end of the screw device 204. The servo motor 202 and the screw device 204 are installed on the bracket 101 and connected together by a coupling 203. The pressure block 205 can provide a loading force to the left, and the magnitude of the loading force can be obtained by using the force feedback of the servo motor 202. In this way, the power is provided by the servo motor 202 driving the screw, which has low noise, does not depend on the particle size of the oil, does not need to be equipped with a hydraulic station, and saves floor space.

[0031] In one embodiment, Figure 2-Figure 5 As shown, the clamping mechanism 300 includes a driving shaft 301, and the driving shaft 301 is connected to the rotating shaft 106 through a second transmission belt 302. The driving shaft 301 is fixedly connected to the rotating shaft 303, and a stopper 304 is fixedly provided on the rotating shaft 303. A limit block 307 for limiting is fixedly provided on the top of the rotating shaft 303. A clamping member for clamping a tire body 308 is slidably provided on the rotating shaft 303. The clamping member includes a spring 306, and the spring 306 is sleeved on the rotating shaft 303. One end of the spring 306 is fixedly connected to the limit block 307. The other end of the spring 306 is fixedly connected to the clamping block 305, and the clamping block 305 is slidably mounted on the rotating shaft 303. When in use, the tire body 308 is mounted on the rotating shaft 303, so that one side of the tire body 308 contacts the side of the block 304. Under the action of the spring 306, the clamping block 305 moves closer to the middle, and the side of the clamping block 305 contacts the other side of the tire body 308, so that the tire body 308 is clamped. At the same time, the rotating shaft 106 drives the rotating shaft 303 to rotate through the second transmission belt 302, so that the tire body 308 can rotate again.

[0032] Example 2

[0033] In one embodiment, Figure 5 As shown, the cross-sections of the stopper 304 and the clamping block 305 are both trapezoidal in shape with a small upper end and a large lower end, so that the stopper 304 and the clamping block 305 can match the center of the tire body 308 to prevent the tire body 308 from slipping off the stopper 304 and the clamping block 305.

[0034] In one embodiment, Figure 1 As shown, a non-slip rubber pad is fixedly provided on the bottom surface of the base 100, so that the device is more stable when in use.

[0035] In one embodiment, Figure 2 As shown, a buffer pad for buffering is fixedly provided on the surface of the pressing block 205 .

[0036] The above embodiment discloses a screw loading force device for a tire testing machine, wherein when in use, the tire body 308 is sleeved on the rotating shaft 303, so that one side of the tire body 308 contacts the side of the stopper 304, and the clamping block 305 is moved closer to the middle under the action of the spring 306, and the side of the clamping block 305 contacts the other side of the tire body 308, so that the tire body 308 is clamped, and the motor 104 is started, and the rotating shaft 106 is driven to rotate through the first transmission belt 105, so that the detection roller 107 rotates, simulating the movement of the tire body 308. The friction encountered during running, at the same time, the rotating shaft 106 drives the rotating shaft 303 to rotate through the second transmission belt 302, so that the tire body 308 can rotate again. The servo motor 202 and the screw device 204 are installed on the bracket 101 and connected together with a coupling 203. The pressure block 205 can provide a loading force to the left, and the size of the loading force can be obtained by using the force feedback of the servo motor 202. In this way, the power is provided by the servo motor 202 driving the screw, which has low noise, does not depend on the particle size of the oil, does not need to be equipped with a hydraulic station, and saves floor space.

[0037] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A screw loading force device for a tire testing machine, comprising a base (100), a bracket (101) for mounting a force adding mechanism (200) being fixedly provided on the upper surface of the base (100), a fixing frame (102) and a mounting frame (103) being fixedly provided on the upper surface of the base (100), a simulation member for simulating tire operation being fixedly provided on the inner wall of the mounting frame (103), characterized in that: A clamping mechanism (300) for clamping a tire body (308) is fixedly disposed inside the fixing frame (102).

2. A tire testing machine screw loading force device according to claim 1, characterized in that: The simulation component comprises a motor (104), the motor (104) is fixedly arranged on the upper top surface of the mounting frame (103), the output end of the motor (104) is transmission-connected to a rotating shaft (106) via a first transmission belt (105), the rotating shaft (106) is rotatably arranged on the side wall of the mounting frame (103), and a detection roller (107) for detection is fixedly sleeved on the rotating shaft (106).

3. A tire testing machine screw loading force device according to claim 1, characterized in that: The force-applying mechanism (200) comprises a support plate (201), the support plate (201) being fixedly arranged on the side wall of the bracket (101), a servo motor (202) being fixedly arranged on the support plate (201), a coupling (203) being fixedly arranged at the output end of the servo motor (202), a screw device (204) being fixedly connected to the output end of the coupling (203), and a pressure block (205) for applying force being fixedly arranged at the output end of the screw device (204).

4. A tire testing machine screw loading force device according to claim 1, characterized in that: The clamping mechanism (300) comprises a driving shaft (301), the driving shaft (301) and the rotating shaft (106) are connected in transmission via a second transmission belt (302), the driving shaft (301) is fixedly connected to the rotating shaft (303), a stopper (304) is fixedly sleeved on the rotating shaft (303), a limit block (307) for limiting is fixedly sleeved on the top end of the rotating shaft (303), and a clamping member for clamping a tire body (308) is slidably sleeved on the rotating shaft (303).

5. A tire testing machine screw loading force device according to claim 4, characterized in that: The clamping member comprises a spring (306), the spring (306) is sleeved on the rotating shaft (303), one end of the spring (306) is fixedly connected to the limit block (307), the other end of the spring (306) is fixedly connected to the clamping block (305), and the clamping block (305) is slidably sleeved on the rotating shaft (303).

6. A tire testing machine screw loading force device according to claim 5, characterized in that: The cross-sections of the stopper (304) and the clamping block (305) are both trapezoidal in shape with a small upper end and a large lower end.

7. A tire testing machine screw loading force device according to claim 1, characterized in that: The bottom surface of the base (100) is fixedly provided with a rubber pad for preventing slipping.

8. The tire testing machine screw loading force device according to claim 3, characterized in that: A buffer pad for buffering is fixedly provided on the surface of the pressing block (205).

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