Tire load calibration device

Abstract

The utility model provides a tire load calibration device which comprises a flexible measurement contact part in contact with a rotary drum, the flexible measurement contact part is connected with a dynamometer, and the dynamometer is connected with a pressure application device; the flexible measurement contact part is arranged, so that the flexible measurement contact part has better mechanical strength and wear resistance, the flexibility is much better than that of a steel part, a very good buffer effect can be achieved when impact is generated in the calibration process, and time is won for electrical engineers to stop a calibration test; preferably, the flexible measurement contact part adopts a silica gel block, and one side, connected with the drum, of the silica gel block is processed into a curved surface of which the radius is the same as that of the circular arc of the drum, so that the stability of load transmission is improved; the device is simple in structure and convenient to use.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of load calibration, in particular to a tire load calibration device. BACKGROUND

[0002] Indoor tire high-speed endurance test is an important method for testing tire safety, and with the improvement of tire performance requirements, the load control precision of the indoor high-speed endurance test machine is required to be higher and higher. In order to ensure that the test machine can control the test load of the tire in a high-precision manner, a load measurement calibration device is needed to establish the relationship between the force and the electric signal, thereby providing data reference for the control of the test machine.

[0003] The traditional test machine load calibration device adopts a steel arc-shaped plate abutting against a rotating drum, and a load cell is in contact with the arc-shaped plate through a loading device. The hard contact between the load cell and the arc-shaped plate is easy to damage the load cell. In addition, due to the influence of machining errors, the arc-shaped plate is difficult to completely fit the surface of the rotating drum. In the loading process, the positioning error between the arc-shaped plate and the surface of the rotating drum will cause inaccurate force value, which cannot provide data reference for the control of the test machine. In addition, the arc-shaped plate is heavy and difficult to install, and there is a risk of falling.

[0004] The applicant has not found related technical content through the arrangement and combination of "tire, test, load, control precision, calibration device, load cell, and silica gel block" as keywords, through the search of a patent search website.

[0005] Therefore, it is necessary to provide a new technical solution to solve the above technical problems. SUMMARY

[0006] The application provides a tire load calibration device, which comprises a flexible measurement contact part matched with a rotating drum, the flexible measurement contact part is connected with a load cell, and the load cell is connected with a pressure applying device.

[0007] As a preferred solution, the load cell is connected with a connecting rod, a horizontal indicator is installed on the connecting rod, and a pressure applying device is connected to one side of the connecting rod.

[0008] As a preferred solution, a connecting ring is arranged between the load cell and the connecting rod, and a connecting disc is concentrically installed on the connecting ring.

[0009] As a preferred solution, a pressing block is arranged on the upper part of the horizontal indicator.

[0010] As a preferred solution, a protective plate is connected to the end of the connecting rod, and the protective plate is connected with the pressure applying device.

[0011] As a preferred solution, the flexible measurement contact part comprises a silica gel block in contact with the rotating drum, the silica gel block is connected with a connecting sleeve, and the connecting sleeve is connected with the dynamometer.

[0012] As a preferred solution, the side of the silica gel block in contact with the rotating drum is provided with a curved groove with the same radius as the radius of the arc of the rotating drum.

[0013] The flexible measurement contact part is provided, has good mechanical strength and wear resistance, and is more flexible than a steel part, can play a good buffering role when impact occurs in the calibration process, and can gain time for electrical engineers to stop the calibration test; preferably, the flexible measurement contact part of the application adopts a silica gel block, the side of the silica gel block in contact with the rotating drum is processed into a curved surface with the same radius as the radius of the arc of the rotating drum, so as to increase the stability of load transmission; and the application has simple structure and is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic view of the application;

[0015] Figure 2 is a structural schematic view of the application cooperating with a rotating drum;

[0016] 1, rotating drum; 2, silica gel block; 3, connecting sleeve; 4, dynamometer; 5, digital display; 6, connecting ring; 7, connecting disc; 8, connecting rod; 9, horizontal indicator; 10, pressing block; 11, protective plate. DETAILED DESCRIPTION

[0017] The specific embodiments of the application will be described below in conjunction with the accompanying drawings. Figure 1 , the accompanying drawings Figure 2 The specific embodiments of the application will be described below in conjunction with the accompanying drawings. Example 1

[0018] The embodiment provides a tire load calibration device, which comprises a flexible measurement contact part in contact with a rotating drum 1, the flexible measurement contact part comprises a silica gel block 2 in contact with the rotating drum 1, the silica gel material has good mechanical strength and wear resistance, and the flexibility is much better than that of a steel piece, so that the silica gel block 2 can play a good buffering role when impact occurs in the calibration process, the silica gel block 2 is connected with a connecting sleeve 3, the silica gel block 2 and the connecting sleeve 3 are connected through a connecting mode commonly used in the prior art such as bonding and screw connection, the flexible measurement contact part is connected with a dynamometer 4, more specifically, the connecting sleeve 3 is connected with the dynamometer 4, the connecting sleeve 3 and the dynamometer 4 can be connected through a connecting mode commonly used in the prior art such as threaded connection and flange connection, the dynamometer 4 can be a dynamometer with a digital display 5 in the prior art, and the specific model is not limited, the dynamometer 4 is connected with a pressure applying device, the pressure applying device can be a device capable of applying pressure in the prior art, and the present application does not make any improvement on the pressure applying device, and details are not described herein; as known, the tire load calibration device can move to make the silica gel block 2 contact with the rotating drum 1, the movement belongs to the conventional prior art, and the present application does not make any improvement on the movement, after the silica gel block 2 contacts with the rotating drum 1, the rotating drum 1 rotates, the pressure applying device applies pressure to the flexible measurement contact part, and the size of the pressure is displayed through the dynamometer 4, and the process realizes tire load calibration.

[0019] Preferably, in order to improve the practicability of the present application, the dynamometer 4 is connected with a connecting ring 6 through a bolt, a connecting disc 7 is concentrically arranged on the connecting ring 6, the connecting disc 7 is used for mounting a tire to be tested, the connecting disc is connected with a power device such as a rotating motor, the connecting ring 6 and the connecting disc 7 are coaxial with the center of the tire and also serve as a rotating center, and the direction of force is adjusted; when the tire is tested, the dynamometer 4, the silica gel block 2 and the connecting sleeve 3 can be removed.

[0020] Preferably, in order to improve the practicability of the present application, the dynamometer 4 is connected with a connecting ring 6 through a bolt, a connecting disc 7 is concentrically arranged on the connecting ring 6, the connecting disc 7 is used for mounting a tire to be tested, the connecting disc is connected with a power device such as a rotating motor, the connecting ring 6 and the connecting disc 7 are coaxial with the center of the tire and also serve as a rotating center, and the direction of force is adjusted; when the tire is tested, the dynamometer 4, the silica gel block 2 and the connecting sleeve 3 can be removed. Embodiment two

[0021] The embodiment can adjust the level of the dynamometer, and specifically:

[0022] The connecting ring 6 is provided with a connecting rod 8 connected to the opposite side of the force gauge 4, the connecting rod 8 is connected with the connecting ring 6 by welding or the like, and the specific connection is not limited, a horizontal indicator 9 is installed on the connecting rod 8, the horizontal indicator 9 can indicate whether the direction of the force gauge 4 and the loading force is consistent, the upper part of the horizontal indicator 9 is provided with a pressing block 10, the pressing block 10 is connected with an external mechanism, and the specific connection is not limited, and the adjustment of the force gauge 4 can be realized; the pressing block 10 and the connecting rod 8 cooperate to adjust the force gauge 4, and ensure that the force gauge 4 and the direction of the loading force are consistent.

[0023] Preferably, the end of the connecting rod 8 is connected with a protective plate 11, the protective plate 11 is connected with the connecting rod 8 by bonding, screw connection, bolt connection or other connection methods commonly used in the prior art, the setting of the protective plate 11 can prevent foreign matter from splashing and injuring people, provide certain safety guarantee, and reduce noise diffusion to a certain extent; one side of the protective plate 11 is provided with a pressure applying device to apply pressure to the flexible measurement contact part.

[0024] The application has good mechanical strength and wear resistance, and the flexibility is much better than that of steel parts, can play a good buffering role when impact occurs in the calibration process, and can gain time for electrical engineers to stop calibration test; preferably, the flexible measurement contact part of the application adopts a silica gel block, one side of the silica gel block connected with the rotating drum is processed into a curved surface with the same radius of curvature as the rotating drum, so as to increase the stability of load transmission; and the application has simple structure and is convenient to use.

[0025] The devices and connection relationships not specifically described above all belong to the prior art, and the application will not be specifically described here.

[0026] The standard parts used in the application file can be purchased from the market, and can be customized according to the description and drawings, and the specific connection mode of each part adopts the conventional bolt, rivet, welding and other conventional means in the prior art, and the mechanical parts and equipment adopt the conventional type in the prior art.

[0027] The preferred mode of the application is described in detail above in combination with the drawings, but the application is not limited to the specific details in the above embodiments, and various simple modifications can be made to the technical scheme of the application within the technical concept of the application, and these simple modifications all belong to the protection scope of the application.

[0028] In addition, it should be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction, and various possible combinations of the application will not be described again in order to avoid unnecessary repetition.

[0029] Moreover, the various embodiments disclosed herein can be combined in any combination, provided such combinations do not violate the spirit of the application, and all such combinations are intended to be within the scope of the present application.

Claims

1. A tire load calibration apparatus characterized by, The utility model relates to a flexible measuring contact part matched with a rotating drum (1), which is connected with a force gauge (4), the force gauge (4) is connected with a connecting rod (8), a horizontal indicator (9) is installed on the connecting rod (8), and a pressure force applying device is connected to one side of the connecting rod (8).

2. A tire load calibration device as in claim 1, wherein, A connecting ring (6) is arranged between the force gauge (4) and the connecting rod (8), and a connecting disc (7) is concentrically arranged on the connecting ring (6).

3. A tire load calibration device as in claim 1, wherein, An upper part of the horizontal indicator (9) is provided with a pressing block (10).

4. A tire load calibration device as in claim 1, wherein, An end of the connecting rod (8) is connected with a protective plate (11), and the protective plate (11) is connected with the pressure force applying device.

5. A tire load calibration device as in claim 1, wherein, The flexible measuring contact part comprises a silica gel block (2) matched with the rotating drum (1), the silica gel block (2) is connected with a connecting sleeve (3), and the connecting sleeve (3) is connected with the force gauge (4).

6. A tyre load indicator according to claim 5, wherein A curved groove is arranged on one side of the silica gel block (2) in contact with the rotating drum (1), and the radius of the curved groove is the same as the arc radius of the rotating drum.

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