KR20170077559A - tire testing equipment - Google Patents

tire testing equipment Download PDF

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Publication number
KR20170077559A
KR20170077559A KR1020150187536A KR20150187536A KR20170077559A KR 20170077559 A KR20170077559 A KR 20170077559A KR 1020150187536 A KR1020150187536 A KR 1020150187536A KR 20150187536 A KR20150187536 A KR 20150187536A KR 20170077559 A KR20170077559 A KR 20170077559A
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KR
South Korea
Prior art keywords
tire
plate
test plate
pressure
test
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KR1020150187536A
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Korean (ko)
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KR101827446B1 (en
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장철환
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장철환
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Publication of KR101827446B1 publication Critical patent/KR101827446B1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G01M17/02—Tyres
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0028—Force sensors associated with force applying means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/16—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G01M17/02—Tyres
    • G01M17/021—Tyre supporting devices, e.g. chucks
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G01M17/02—Tyres
    • G01M17/027—Tyres using light, e.g. infrared, ultraviolet or holographic techniques
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Tires In General (AREA)

Abstract

The present invention can test not only the characteristics of twisting and pressure applied to a tire in a state where the tire is stopped, but also the deformation and the grounding state in the process of rolling the tire, And a test apparatus.

Description

Tire testing equipment {tire testing equipment}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire testing apparatus, and more particularly, to a tire testing apparatus capable of selectively testing static characteristics and dynamic characteristics of a tire.

That is, the present invention can test not only the characteristics of torsion and pressure applied to the tire in the state where the tire is stopped but also the deformation and the grounding state in the process of rolling the tire, The present invention relates to a tire testing apparatus.

Typically, tires play a very important role in vehicle operation. The performance of such tires not only affects the wear characteristics of the ground shape and the distribution of the ground pressure but also determines the steering stability performance, braking performance, driving performance, and fuel consumption of the vehicle, and therefore the tire ground pressure distribution is important It is a standard factor.

Accordingly, various apparatuses and methods for testing the tire ground contact pressure, wear characteristics, and the like have been developed. In an apparatus and a method for testing a tire, the pressure of various directions is applied to the tire while the tire is stopped, There is a static characteristic testing device for testing the abrasion characteristics and the grounding pressure of the tire to rub the tire and a dynamic characteristic testing device for testing the wear and ground state of the tire while providing various pressures and frictional forces to the tire while the tire is rotating. There are Patent Documents 1 to 3 as techniques for testing the static characteristics among technologies related to the apparatus, and various technologies including the Patent Documents 4 to 6 are related to the dynamic characteristic testing apparatus.

Techniques related to such a tire test are devices for testing how the surface of a tire is deformed and worn in a state in which a tire is fixed or a tire is rotated as described above, and it is widely used in a tire test. However, There is a disadvantage in that it can not sufficiently reflect the lag impulse, and there is a disadvantage that various tire test environments can not be created according to seasons.

The applicant of the present invention has developed a tire testing apparatus which is installed in various places and environments and can test a tire according to various test conditions.

Patent Document 7 relates to a dynamic characteristic testing apparatus, which is capable of performing a test according to road conditions at different installation sites or locations, comprising: a transparent ground plate in contact with a tire; A three-axis load cell installed on the bottom of the ground plate to measure a force acting on each direction of the x, y and z axes generated in the tire; A camera module for photographing a ground surface of a tire brought into contact with the ground plate; A support plate on which the camera module and the 3-axis load cell are fixedly supported; And a computer having a program for calculating a copper ground pressure, a ground shape, and a deformation amount of a tire from a signal sensed by the 3-axis load cell and the camera module, and a computer having an image correction program.

However, this dynamic characteristic sensing means is easy to measure the dynamic characteristic, but it has a limitation in testing the static characteristics, and it can not implement various environmental changes applied to the tire such as the road condition or the weight of the vehicle.

1. United States Patent No. 06439043 2. US Patent No. 07140242 3. Korean Patent No. 10-1311108 4. US Patent No. 04359896 5. United States Patent No. 03986392 6. Korean Patent No. 10-0526692 7. Korean Patent No. 10-1484504

SUMMARY OF THE INVENTION It is an object of the present invention to provide a tire testing apparatus capable of realizing a road situation in which a tire is actually used and a load applied to the tire to produce a more realistic test situation .

More specifically, the present invention can test not only torsion and pressure characteristics applied to a tire in a state where the tire is stopped, but also deformation and grounding conditions in the process of rolling the tire, And it is an object of the present invention to provide a tire testing apparatus capable of testing a tire while applying a load to the tire in various directions.

To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is provided a tire testing apparatus for testing the characteristics of a tire while applying pressure to the tire in a longitudinal direction and a torsional direction, At least one elevating support including elevating means for elevably supporting the tire support shaft; A test plate provided at a lower portion of the tie and brought into contact with the tire to apply pressure to the tire in the front, rear, left, right and twist directions; A plate rotating means installed at a lower portion of the test plate to rotate the test plate to provide a torsional pressure to the tire; Rearward movement means provided at a lower portion of the test plate to move the test plate forward and backward to thereby provide a pressure in the forward and backward direction to the tire; And a left and right moving means installed at a lower portion of the test plate for moving left and right the test plate to provide a pressure in the left and right direction to the tire.

The test plate may include a friction coil embedded with a heating coil that generates heat by receiving electricity, and a friction plate on which diamond particles are electrodeposited to increase frictional force on the surface.

The test plate may include: a transparent ground plate contacting the tire; A three-axis load cell installed on a bottom surface of the transparent ground plate to measure a force acting on angles of x, y and z axes generated in the tire; A camera module for photographing a ground surface of a tire brought into contact with the transparent ground plate; A support plate on which the camera module and the 3-axis load cell are fixedly supported; And a computer having a program for calculating a copper ground pressure, a ground shape, and a deformation amount of a tire from a signal sensed by the three-axis load cell and the camera module and an image correction program.

The tire supporting shaft may be provided with a tire rotating means for rotating the tire.

In addition, the elevating support member may be provided with a rotating means between the tire supporting shaft and the elevating means so that the angle at which the tire contacts the test plate can be changed by tilting the tire.

The elevating support may be installed symmetrically about the tire.

As described above, according to the tire testing apparatus of the present invention, since the pressure applied to the test plate is varied by raising and lowering the tire by using the elevating means, the tire wear state and the grounding pressure at various loads applied to the tire There is an effect that can be tested.

In addition, the test plate can be moved forward, backward, leftward and rightward as well as rotated, and the inclination of the tire can be adjusted, so that the tire can be tested in a similar situation to the road where the tire is contacted. There is an effect that can be done.

Also, since the test plate is separately configured for the static characteristic test and the dynamic characteristic test, and the test plate is detachably installed, it is possible to test both the dynamic characteristic and the static characteristic in one test apparatus.

1 is a perspective view of a tire testing apparatus according to the present invention;
2 is a front view of a tire testing apparatus according to the present invention.
3 is a perspective view of an example of a test plate constituting a tire testing apparatus according to the present invention.
4 is a perspective view of another example of a test plate constituting a tire testing apparatus according to the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Like reference numerals are used for like elements in describing each drawing. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

The present invention realizes a road situation in which a tire is actually used, or a load applied to the tire, so that a more realistic test situation can be produced.

The tire testing apparatus according to the present invention is a device for testing the characteristics of a tire while applying pressure to the tire in front, back, left, right and torsion in contact with the tire. The apparatus includes a lifting support 10 for lifting the tire, And a test plate in which the tire is in direct contact.

The elevating support 10 is not only mounted on the test plate 20 to fix the tire to be tested but also has a cantilever shape as shown in FIG. 1 as a means for adjusting the contact pressure with the test plate, As shown in Fig. 2, it is possible to install two pieces and to support the tires on both sides of the tire.

As shown in Figs. 1 and 2, the elevating support 10 includes a tire supporting shaft 11 to which a tire is fixed, and a lifting means 12 for lifting the tire.

The tire supporting shaft 11 is a shaft to which the rim provided on the tire is fixed and the elevating means 12 is means for elevating the tire supporting shaft 11 up and down.

The elevating means 12 can be variously modified, but preferably an LM guide or a hydraulic cylinder can be used.

In the present invention, it is preferable to test both the static characteristic and the dynamic characteristic of the tire as described above. For this purpose, the tire supported by the elevating support 10 must be kept fixed or rotatable.

The tire rotating means 11r is further provided between the tire supporting shaft 11 and the elevating means 12 of the elevating support 10.

As the tire rotating means 11r, various devices capable of rotating the tire can be used, but it is preferable that the tire rotating means 11r is constituted by a motor.

Further, the tire to be tested using the tire testing apparatus of the present invention can also be subjected to a cornering test. At this time, the tire is inclined and the contact portion with the ground changes. In order to make the contact portion between the tire and the test plate 20 change by tilting the tire as in cornering, the distance between the tire supporting shaft 11 and the elevating means 12 or between the elevating means 12 and the tire rotating means 11r It is preferable to further provide the rotating means 13.

The turning means 13 thus installed is simply a hinge pin that connects the elevating means and the tire supporting shaft or the tire driving means so that the user can arbitrarily tilt the tire. Preferably, however, driving means such as a step motor is installed on the hinge pin Thereby adjusting the tilt of the tire.

In the tire testing apparatus according to the present invention configured as described above, the test plate 20 functions as a ground. By moving the test plate 20, a situation such as a tire contacting the road is produced.

That is, the test plate 20 serves as a road, and the static characteristics and the dynamic characteristics of the tire can be tested by operating the test plate 20.

As means for actuating the test plate 20, the plate rotating means 30, the back and forth moving means 40, and the left and right moving means 50 are provided.

1 and 2 show an example in which the plate rotating means 30, the back and forth moving means 40 and the left and right moving means 50 are sequentially arranged from the top to the bottom, . That is, the arrangement order of the plate rotating means 30, the back and forth moving means 40, and the left and right moving means 50 may be changed.

The plate rotating means 30 rotates the test plate to provide a torsional pressure to the tire. As shown in FIG. 2, the plate rotating means 30 includes a rotating shaft (not shown) fixed to the bottom surface of the test plate and having a driven gear 31g 31 and a motor 32 having a driving gear 32g for rotating a driven gear 31g formed on the rotating shaft.

1 and 2, the driven gear 31g and the driven gear 32g, that is, the driven gear in the case where the rotary shaft 31 and the motor shaft are disposed perpendicular to each other, have a pinion gear shape, and the drive gear has a shape of a screw shaft The driven gear 31g and the drive gear 32g can be formed in any shape as long as the structure can transmit the power of the motor 32 to the rotary shaft 31. [ That is, various types of driven and drive gears may be used depending on the direction of the rotary shaft 31 and the motor shaft.

The left and right moving means 40 is a means for providing lateral pressure to the tire by moving the test plate to the left and right. In FIGS. 1 and 2, the left and right moving means 40 is provided at the lower portion of the plate rotating means 30 However, it may be installed between the plate rotating means 30 and the test plate 20.

1 and 2, the left and right moving means 40 includes a left and right moving plate 41 provided under the plate rotating means and a left and right moving plate 41 for supporting the left and right moving plates so as to be movable left and right. And the left and right moving plates 41 are moved left and right along the left and right movement guides 42 as the driving means is driven.

The left and right movement guide 42 may be an LM guide, and the driving means 43 may be a hydraulic device such as a hydraulic cylinder or a motor having a screw shaft.

The above-mentioned back-and-forth moving means 50 is means for providing the front and rear direction pressures to the tire by moving the test plate back and forth, and its configuration is the same as the left and right moving means 40 described above.

That is, as shown in Figs. 1 and 2, a back-and-forth moving guide 52 for supporting the front and rear moving plates so as to be movable forward and backward is provided below the front and rear moving plates 51 provided below the plate rotating means, The driving means 53 is provided on one side so that the front and rear moving plate 51 is moved left and right along the back and forth movement guide 52 as the driving means is driven.

Of course, the back and forth movement guide 52 may be an LM guide, and the driving means 53 may be a hydraulic device such as a hydraulic cylinder or a motor having a screw shaft.

Further, it is preferable that the tire testing apparatus of the present invention further comprises a three-axis load cell (60) for sensing the pressure of the tire being lifted and lowered by the lifting support.

The three-axis load cell 60 measures a force acting on the x, y and z axes generated by the tire pressing the test plate. The three-axis load cell 60 drives the front, rear, left- And detects a change in force due to friction generated between the tire and the test plate. That is, the force (the lateral force and the front / rear force) in the x and y directions due to the friction between the tire and the test plate is detected as well as the force (z-axis direction force) of the tire pressing the test plate. This is used for static characterization tests.

The tire testing apparatus according to the present invention configured as described above is preferably capable of testing both static characteristics and dynamic characteristics as described above. To do so, the tire supporting shaft 11 installed on the lifting support is rotated And the test plate 20 is also divided into a static characteristic and a dynamic characteristic.

Preferably, the test plate 20 may be detachably mounted on the upper portion of the test plate 20 so as to be perpendicular to the rotation direction of the tire regardless of whether the test plate 20 is used for static characteristics or for dynamic characteristics.

3, protrusions 20d can be provided on the upper surface of the friction plate 22 to which the diamond is electrodeposited. In the case of the test plate for dynamic characteristics, the protrusions 20d of the transparent ground plate 23 The protruding jaw 20d can be inspected on the upper surface.

At this time, in the case of protruding jaws provided on the transparent ground plate 23, it is preferable to be made of a transparent material.

As shown in FIG. 3, the static characteristics test test plate 20 includes a heating coil 21 which receives electricity by supplying electricity to a flat plate-shaped plate, and a friction plate 21 on which a diamond particle is electrodeposited, (22).

Although not shown, an assembling structure for competing with the rotating shaft 31 is formed on the test plate for static characteristics as described above.

Another test plate 20 is for dynamic characteristics testing, which is constructed as shown in Fig.

That is, in the case of the test plate for barrel characteristics testing, it is desirable to be able to sense the deformation state of the tire in real time while the pressure is being applied while the tire is rotating, so that the transparent ground plate 23 in contact with the tire; A three-axis load cell (24) installed on a bottom surface of the transparent ground plate and measuring a force acting on each of the x, y and z axes generated in the tire; A camera module (25) for photographing a ground plane of the tire contacted with the transparent ground plate; A support plate 26 on which the camera module and the 3-axis load cell are fixedly supported; And a computer 27 having a program for calculating a copper ground pressure, a ground shape, and a deformation amount of a tire from signals sensed by the three-axis load cell and the camera module, and an image correction program.

Such a test plate for barrel characteristics testing has already been disclosed by the applicant and the patent application 1484504 filed and registered, but this is briefly explained to help by the present invention.

The transparent ground plate 23 is a means for deforming the contact surface of the pressed tire by contacting the tire and transmitting the ground pressure of the tire to the triaxial load cell 24 as described above. A camera module 24 is provided below the transparent ground plate 23 to detect the deformation state of the pressed tire on the transparent ground plate 23. The camera module 24 is mounted on the transparent ground plate 23 The transparent ground plate 23 is made of a transparent material so that the deformed state of the pressed tire can be photographed.

4, the bottom edge of the transparent ground plate 23 is supported by the four corners of the support plate 26, and a three-axis load cell 24 is provided between the transparent ground plate 23 and the support means.

The three-axis load cell 24 measures a force acting on the x, y, and z axes generated by the tire pressing the transparent ground plate 23. The three-axis load cell 24 has a force (lateral force and front / rear force) in the x and y directions due to friction between the tire and the transparent ground plate 23 as well as the force (z-axis direction force) pressing the tire toward the ground plate. . That is, when the tire is brought into close contact with the transparent ground plate 23, the three-axis load cell 24 is pressed against the transparent ground plate 23 by the rotational force of the tire as well as the pressing force of the transparent ground plate 23 by the tire, Is pushed backward and detects the change of the force due to the load of the vehicle and the friction of the ground plate. In addition, when the tire is tilted, the transparent ground plate 23 may be deformed not only in the front-rear direction (the traveling direction of the vehicle) but also in the left-right direction, Lt; / RTI > The displacement sensed by the three-axis load cell is transmitted to the computer 27, and serves as a basis for calculating the tire ground pressure.

Preferably, the three-axis load cell 24 is installed on the bottom surfaces of four corners of the transparent ground plate 23 so that the transparent ground plate 23 is supported by the three-axis load cells.

The transparent ground plate 23 is pressed not only by the tire but also by the driving force of the tire, so that the transparent ground plate 23 pushed by the tire is smoothly moved. And the transparent ground plate 23 is separated from the support plate 27, the support plate is coupled to the three-axis load cell.

In addition, it is preferable that the upper surface of the transparent ground plate 23 is formed with irregularities so that a frictional force as when the tire travels on actual roads is applied.

The camera module 25 is brought into contact with the transparent ground plate 23 as described above to take an image of the deformed tire and transmit it to the computer 27.

The camera module 25 is composed of a plurality of cameras in which one illumination device is integrally installed and arranged in the vertical and horizontal directions. The camera module 25 uses a small camera and is installed adjacent to the transparent ground plate 23 to form a transparent ground plate 23 So that the deformation of the tire can be detected even if the distance between the support plates 26 is small. That is, the camera is a camera capable of close-up photography, and a relatively low resolution camera can be used. Since a close-up image of the camera may be deformed around the center, a normal image can be obtained by correcting the image through an image correction module provided in the computer. Such an image correction module can be configured by software and can be configured by employing image correction software that is already provided, so that a detailed description thereof will be omitted.

The computer 27 is a means for calculating the copper ground pressure, the ground shape, and the deformation amount of the tire from the signals sensed by the three-axis load cell 24 and the camera module 25. The program for calculating the ground pressure is a three- The displacement of the transparent ground plate 23 sensed by the load cell 24 is compared with the degree of deformation of the tire sensed by the camera module 25 and the state of the vehicle, that is, when the vehicle is traveling at a constant speed, It is possible to calculate the ground pressure of the tire depending on the situation such as when the vehicle is running, when the vehicle is braking, when the vehicle is turning, or the like. In the present invention, it is an object to detect a deformation state of a tire and a displacement of a ground plate according to a situation of a vehicle, which are required in a calculation program, and this calculation program can be driven using a rule established through testing, The description is omitted.

In addition, the present invention is a device capable of testing a tire while being installed on an actual road and running the vehicle, and is provided with a signal sensed by the three-axis load cell (24) and the camera module (25) It is preferable to further provide a communication module as a means for delivering the communication module to a remote computer. Preferably, the communication module is wireless rather than wired.

10: Lifting support
11: Tire support shaft 11r: Tire rotation means
12:
13:
20: test plate 20d: protruding jaw
21: Heating coil
22: friction plate
23: Transparent ground plate
24: 3 axis load cell
25: Camera module
26: Support plate
27: Computer
30: plate rotating means
31: rotating shaft 31g: driven gear
32; Motor 31g: drive gear
40:
41: left and right moving plate
42: Guide to left and right movement
42: driving means
50: forward / backward moving means
51: front and rear moving plate
52: Moving back and forth
52: driving means
60: 3 axis load cell
61: Support plate
70: bottom plate

Claims (8)

An apparatus for testing the characteristics of a tire while applying a torsional pressure to the tire in a state of being in contact with the tire,
At least one lifting support (10) including a tire supporting shaft (11) on which a tire is detachably mounted, and lifting means (12) for lifting and supporting the tire supporting shaft (11);
A test plate (20) installed at a lower portion of the tie and brought into contact with the tire to apply pressure to the tire in the front, rear, left, right and twist directions;
A plate rotating means 30 installed at a lower portion of the test plate for rotating the test plate to provide a torsional pressure to the tire;
Backward movement means (40) provided at a lower portion of the test plate to move the test plate forward and backward to thereby provide pressure to the tire in the forward and backward directions;
And a left and right moving means (50) provided at a lower portion of the test plate for moving the test plate in the left and right direction to provide a pressure in the lateral direction to the tire. The method according to claim 1,
Wherein the test plate (20) is provided with a heating coil (21) which receives electricity and generates heat, and a friction plate (22) on which diamond particles are electrodeposited to increase frictional force. The method according to claim 1,
The test plate (20)
A transparent ground plate (23) in contact with the tire;
A three-axis load cell (24) installed on a bottom surface of the transparent ground plate and measuring a force acting on each of the x, y and z axes generated in the tire;
A camera module (25) for photographing a ground plane of the tire contacted with the transparent ground plate;
A support plate 26 on which the camera module and the 3-axis load cell are fixedly supported; And
And a computer (27) provided with a program for calculating a copper ground pressure, a ground shape, and a deformation amount of the tire from the signals sensed by the three-axis load cell and the camera module and an image correction program. The method according to claim 1,
Characterized in that the tire supporting shaft (11) is provided with a tire rotating means (11r) for rotating the tire. The method according to claim 1 or 4,
Wherein the elevating support includes a pivoting means (13) provided between the tire supporting shaft and the elevating means so that the angle at which the tire contacts the testing plate can be changed by tilting the tire. The method according to claim 1,
Wherein the elevating support member is installed symmetrically with respect to the tire. The method according to claim 1,
And a three-axis load cell (60) for sensing the pressure of the tire being lifted by the elevation support is further provided at a lower portion of the test plate. The method according to claim 1,
Characterized in that at least one protruding step (20d) is detachably mounted on the upper part of the test plate so as to be perpendicular to the rotating direction of the tire.

KR1020150187536A 2015-12-28 2015-12-28 tire testing equipment KR101827446B1 (en)

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CN102393309B (en) * 2011-08-25 2014-04-16 吉林大学 Tyre coupling stiffness testing machine
KR101489239B1 (en) * 2013-08-08 2015-02-04 주식회사 천일시스템 short track type tire testing equipment

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