CN218600742U

CN218600742U - Displacement calibration device for tire rolling resistance testing machine

Info

Publication number: CN218600742U
Application number: CN202222443833.8U
Authority: CN
Inventors: 王宝林; 秦海兴
Original assignee: Sailun Jinyu Group Co Ltd
Current assignee: Sailun Jinyu Group Co Ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-03-10
Anticipated expiration: 2032-09-15

Abstract

The utility model provides a displacement calibrating device for tire rolling resistance testing machine, including two spill magnet fixed blocks, horizontal auxiliary mounting panel, two guide blocks, vertical auxiliary mounting panel and sliding plate subassembly, two the equal fixed mounting of tip of magnet fixed block has magnet, and horizontal auxiliary mounting panel, two guide blocks and vertical auxiliary mounting panel constitute square frame structure, two the perpendicular fixed mounting of magnet fixed block is at horizontal auxiliary mounting panel both ends, the sliding plate subassembly includes the sliding plate and measures auxiliary block, the sliding plate inserts square frame structure middle part space, and both sides slip insert respectively in the inboard spout of guide block, be equipped with the jackscrew on the guide block, sliding connection is equipped with rather than the vertically measures auxiliary block in the middle of the sliding plate, be equipped with the jackscrew on the sliding plate. The utility model is suitable for a rectilinear and horizontal tire rolling resistance testing machine, it is accurate reliable to measure, adopts the light frock, uses manpower sparingly, and the flexible operation is safe.

Description

Displacement calibration device for tire rolling resistance testing machine

Technical Field

The utility model relates to a tire capability test technical field, concretely relates to a displacement calibrating device for tire rolling resistance test machine.

Background

The fuel economy of a vehicle is not only related to the fuel economy of an engine, but also has a large relationship with the rolling resistance of tires. In the field of tire performance testing, a tire rolling resistance testing machine is used for testing the rolling resistance of a tire, and the testing machine comprises a vertical testing machine and a horizontal testing machine.

In the rolling resistance test, the dynamic load radius of the tire needs to be measured and used for calculating the rolling resistance of the tire. The dynamic load radius is the distance from the central line of the wheel axle to the outer surface of the rotary drum when the tire is loaded and keeps rolling in a steady state, namely the displacement of the rolling resistance tester (measuring hub). Therefore, the displacement of the device needs to be calibrated regularly to ensure the accuracy of the test result.

At present, two displacement measurement (calibration is performed if measurement is unqualified) modes are common, one mode is manual measurement by a laboratory technician, namely, a vernier caliper is held by a hand, a level gauge is placed on the vernier caliper, a horizontal point between a rotary drum and a wheel shaft center is manually searched, and the method cannot ensure that a contact surface between the vernier caliper and the rotary drum is a tangent point and ensures complete level with the wheel shaft center line; the other type is used for a horizontal testing machine, a tester uses a calibration device for auxiliary measurement, the vernier caliper does not need to be held by hands, but the zero point position of the vernier caliper needs to be fixed artificially, the tool connected with the wheel shaft is heavy, one person cannot operate, danger easily occurs, a rim connecting disc and the like need to be detached before installation, and operation is complex.

SUMMERY OF THE UTILITY MODEL

To the problem, the utility model provides a displacement calibrating device for tire rolling resistance testing machine, rectilinear and horizontal tire rolling resistance testing machine all is suitable for, avoids artifical error, and it is accurate reliable to measure, adopts the light frock, uses manpower sparingly, flexible operation safety.

The embodiment of the utility model provides a displacement calibrating device for tire rolling resistance testing machine, including two spill magnet fixed blocks, horizontal auxiliary mounting panel, two guide blocks, vertical auxiliary mounting panel and sliding plate subassembly, two the equal fixed mounting of tip of magnet fixed block has magnet, and horizontal auxiliary mounting panel, two guide blocks and vertical auxiliary mounting panel constitute square frame structure, two the perpendicular fixed mounting of magnet fixed block is at horizontal auxiliary mounting panel both ends, two the one end of guide block is passed through horizontal auxiliary mounting panel and is connected, two the other end of guide block passes through vertical auxiliary mounting panel is connected, sliding plate subassembly includes the sliding plate and measures auxiliary block, the sliding plate inserts square frame structure middle part space, and both sides slide insert respectively in the inboard spout of guide block, be equipped with the jackscrew on the guide block, sliding connection is equipped with rather than the vertically and measures auxiliary block in the middle of the sliding plate, be equipped with the jackscrew on the sliding plate.

In the above-described preferred embodiment of the displacement calibration device for a tire rolling resistance tester, the slide plate and the measurement auxiliary block are high-precision workpieces.

In the above-described preferred embodiment of the displacement calibration device for a tire rolling resistance tester, the position information of the measurement auxiliary block on the slide plate is obtained by measurement in advance.

In the above preferred embodiment of the displacement calibrating device for a tire rolling resistance testing machine, the device is made of an aluminum alloy.

In the above preferred technical solution of the displacement calibration device for a tire rolling resistance tester, the measurement auxiliary block is a rectangular parallelepiped structure.

In the above preferred technical scheme of the displacement calibration device for the tire rolling resistance tester, the guide block is of a square frame structure, and a sliding groove is formed in the inner wall of the square frame of the guide block.

Compared with the prior art, the utility model, following beneficial effect has:

1. the utility model has light weight, fixes the displacement calibrating device on the rotary drum by utilizing the magnetic attraction and sliding fixing principle, is applicable to both vertical and horizontal rolling resistance testing machines, has light weight, saves manpower and is safe to operate;

2. the utility model uses the high-precision sliding plate and the auxiliary measuring block to assist in measuring, and the measurement is accurate and reliable; the height of the measuring auxiliary block is adjusted, so that the measuring auxiliary block and the highest point of the wheel axle with any size are on the same horizontal line, and the device is suitable for rolling resistance testing machines of different manufacturers and models.

Drawings

Embodiments of a displacement calibration device for a tire rolling resistance tester according to the present invention will be described below with reference to the accompanying drawings. The attached drawings are as follows:

fig. 1 is a schematic view of the forward structure of the present invention;

FIG. 2 is a schematic view of the reverse structure of the present invention;

fig. 3 is a side view of the present invention;

fig. 4 is a schematic view of the application of the present invention.

Description of the reference numerals: 1. a magnet fixing block; 2. measuring the auxiliary block; 3. a guide block; 4. a longitudinal auxiliary mounting plate; 5. a transverse auxiliary mounting plate; 6. a sliding plate; 7. and a magnet.

Detailed Description

First, it should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications.

Next, it should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "inside", "outside", and the like are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that a device or member must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The following detailed description is given to specific implementations of the present invention with reference to specific embodiments:

referring to fig. 1-4, the displacement calibration device for the tire rolling resistance testing machine provided in this embodiment includes two concave magnet fixing blocks 1, a horizontal auxiliary mounting plate 5, two guide blocks 3, a vertical auxiliary mounting plate 4 and a sliding plate assembly, where the end portions of the two magnet fixing blocks 1 are both fixedly mounted with a magnet 7, the horizontal auxiliary mounting plate 5, the two guide blocks 3 and the vertical auxiliary mounting plate 4 form a square frame structure, the two magnet fixing blocks 1 are vertically and fixedly mounted at two ends of the horizontal auxiliary mounting plate 5, one ends of the two guide blocks 3 are connected through the horizontal auxiliary mounting plate 5, the other ends of the two guide blocks 3 are connected through the vertical auxiliary mounting plate 4, the two auxiliary mounting plates ensure the overall stability of the device, the sliding plate assembly includes a sliding plate 6 and a measurement auxiliary block 2, the sliding plate 6 is inserted into a middle space of the square frame structure, the two sides are respectively slidably inserted into inner side sliding grooves of the guide block 3, the sliding plate 6 is movable, a jackscrew is disposed on the guide block 3 for fixing the sliding plate 6, and a measurement auxiliary block 2 perpendicular to the sliding plate is disposed in the sliding plate 6 in a sliding manner.

In a possible embodiment, the sliding plate 6 and the measurement aid block 2 are high precision workpieces.

In a possible embodiment, the position information of the measurement auxiliary block 2 on the sliding plate 6 is obtained by measuring in advance, and the distance from the side of the sliding plate 6 close to the outer surface of the drum to the side of the measurement auxiliary block 2 close to the outer surface of the drum is obtained.

In one possible embodiment, the device is made of an aluminum alloy.

In one possible embodiment, the measurement aid block 2 has a rectangular parallelepiped structure.

In a possible embodiment, the guide block 3 is a square frame structure, and the square frame inner wall of the guide block 3 is provided with a sliding groove for sliding connection with the sliding plate 6.

The utility model discloses a theory of operation as follows:

1. the magnet fixing block 1 is adsorbed on the rotary drum through a magnet 7, and the rotary drum of the rolling resistance testing machine is fixed after the device is leveled by using a leveling rod;

2. the magnet fixing block 1 is finely adjusted by using a leveling instrument continuously, after the magnet fixing block is completely leveled, the horizontal center of the device, the center of a drum of the rolling resistance testing machine and the center of a wheel shaft are ensured to be positioned on the same horizontal line, then the sliding plate 6 is moved, and after the sliding plate 6 contacts the outer surface of the drum, the sliding plate 6 is fixed by using a jackscrew on the guide block 3;

3. one end of a vernier caliper is arranged on the auxiliary measuring block 2, the other end of the vernier caliper is arranged on a wheel shaft, the auxiliary measuring block 2 is moved by using a horizontal ruler, the height of the auxiliary measuring block 2 is adjusted to be horizontal to the horizontal ruler, and the auxiliary measuring block 2 is fixed by using a jackscrew on a sliding plate 6;

4. moving the measuring hub of the rolling resistance testing machine, starting displacement measurement, reading the reading of the vernier caliper, and obtaining the distance from one side of the auxiliary measuring block 2 close to the outer surface of the rotary drum to the outer side of the wheel shaft of the rolling resistance testing machine, wherein the specific calculation formula of the displacement of the rolling resistance testing machine is as follows: the displacement of the rolling resistance tester = D1+ D2-L1, where D1 is the distance from the side of the sliding plate 6 close to the outer surface of the drum to the side of the measurement auxiliary block 2 close to the outer surface of the drum, D2 is the distance from the side of the measurement auxiliary block 2 close to the outer surface of the drum to the outer side of the wheel axle, and L1 is the radius of the wheel axle.

The embodiments of the present invention have been described so far with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions can be made on the related technical features by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions will fall into the protection scope of the invention.

Claims

1. The displacement calibration device for the tire rolling resistance testing machine is characterized by comprising two concave magnet fixing blocks, a transverse auxiliary mounting plate, two guide blocks, a longitudinal auxiliary mounting plate and a sliding plate assembly, wherein magnets are fixedly mounted at the end parts of the magnet fixing blocks, the transverse auxiliary mounting plate, the two guide blocks and the longitudinal auxiliary mounting plate form a square frame structure, the two magnet fixing blocks are vertically and fixedly mounted at the two ends of the transverse auxiliary mounting plate, one ends of the two guide blocks are connected through the transverse auxiliary mounting plate, the other ends of the two guide blocks are connected through the longitudinal auxiliary mounting plate, the sliding plate assembly comprises a sliding plate and a measuring auxiliary block, the sliding plate is inserted into a middle gap of the square frame structure, the two sides of the sliding plate are respectively inserted into sliding grooves in the inner sides of the guide blocks in a sliding mode, jackscrews are arranged on the guide blocks, the middle of the sliding plate is slidably connected with the measuring auxiliary block perpendicular to the sliding plate, and jackscrews are arranged on the sliding plate.

2. The displacement calibration device for a tire rolling resistance tester according to claim 1, wherein the slide plate and the measurement auxiliary block are high-precision workpieces.

3. The displacement calibration device for a tire rolling resistance tester as claimed in claim 1, wherein the position information of said measurement auxiliary block on said sliding plate is obtained by measurement in advance.

4. The displacement calibration device for a tire rolling resistance tester as claimed in claim 1, wherein said device is made of aluminum alloy.

5. The displacement calibrating device for the tire rolling resistance tester as claimed in claim 1, wherein the measuring auxiliary block is a rectangular parallelepiped structure.

6. The displacement calibration device for the tire rolling resistance tester according to claim 1, wherein the guide block is of a square frame structure, and a sliding groove is formed in the square frame inner wall of the guide block.