KR20080079380A - Wear rate test device, and wear rate method for rubber material - Google Patents

Abstract

A wear measurement apparatus and a wear measurement method for a rubber material using the same are provided to measure a wear rate of the rubber material under load-variable condition. A wear measurement apparatus includes a motion conversion unit(100), a reciprocation unit(200), a pressing supporter(300), a friction member(320), and a sensor(S). The motion conversion unit converts rotary motion to linear motion according to operation of a driving unit(110) formed on a base(B). The reciprocation unit is connected with the motion conversion unit. The pressing supporter is connected with the reciprocation unit and includes a weight controller. The friction member is coupled to a lower part of the pressing supporter and slides on a rubber object. The sensor senses wear ratio of the rubber object by detecting changes in the distance from the pressing supporter.

Description

Wear measurement device and wear measurement method of rubber material using the same {Wear rate test device, and wear rate method for rubber material}

1 is a perspective view showing a preferred embodiment of the wear measuring apparatus of the present invention,

2 is a side view of the wear measuring apparatus of the present invention;

3 is a front view of the wear measuring apparatus of the present invention;

Figure 4 is a plan view showing a cross section of the A-A portion shown in Figure 3 of the wear measuring apparatus of the present invention,

5 is an exploded perspective view of the wear measuring apparatus of the present invention;

6 is an enlarged view of a portion B of FIG. 5 of the wear measuring apparatus of the present invention;

7 is an enlarged view of a portion C shown in FIG. 5 of the wear measuring apparatus of the present invention;

8 is a graph showing a value of the wear rate of the rubber material in real time in the monitor using the wear measuring apparatus of the present invention.

Explanation of symbols on the main parts of the drawings

10: wear measurement device 100: power converter

101: support member 110: drive part

110 ': drive motor 120: rotating plate

121: through hole 122: hinge hole

130: link 140: connecting rod

200: reciprocating unit 210: moving plate

214,253: coupling hole 220: horizontal motion member

221: insertion hole 230: guide member

232: guide groove 233: guide projection

240: moving block 241: guide home

242: guide protrusion 250: connection member

251: connecting groove 252: fixing hole

300: pressure support member 310: weight control unit

311: insertion guide member 312: weight

320: friction member 321: fixing member

500: height adjustment unit 510: support shaft

520: lifting member 600: rubber material

B: Base C: Chamber

S: Sensor SL: Slurry

W: water

The present invention relates to a device for measuring the wear rate of the rubber material, and more particularly to a wear measuring device for measuring the wear rate (wear resistance) of the rubber material in a dry or wet state.

In general, the wear measuring device is a william method that causes rubber to be attracted to the surface of a rotating abrasive disk to cause abrasion, and a din method that causes abrasion by dragging a specimen fixed to a rotating drum from side to side. , Pico method that the blade rotates and scratches the rubber specimen to cause wear A Taber method that causes the specimen to wear out with two abrasive stones, and a Grosch method that causes the specimen to rotate in a direction orthogonal to the axis of rotation of the abrasive plate have been developed.

By using the various wear test methods described above, the wear rate of rubber materials used in various industrial fields will be tested.

On the other hand, the wear of the rubber material means a phenomenon that the surface of the rubber material is deviated from the surface according to the frictional external force. In some cases, the wear of the material causes a great damage to the product and may result in unexpected disasters. .

For example, a tire, which is one of the rubber materials, is provided in a vehicle to serve as a foot of a person. The tire guides the movement of the vehicle while making rolling contact with the road surface. In addition, the tire is a very important part that determines the speed performance, braking force, steering performance, direction stability, etc. of the vehicle speed and acceleration. Accordingly, the tire is selected from a rubber material having high frictional force and excellent wear resistance and heat resistance.

In addition, the tire is tested for wear resistance to be adapted to various external environments. That is, when it rains or snows, not only water film is generated on the road surface, foreign matters such as soil and sand slide with the tires, thereby causing problems in the control of the steering system and the brakes.

However, the above-mentioned conventional wear resistance test methods of the rubber material were all tested only in the dry state, there was no method for testing the wear resistance of the tire in the wet state. Therefore, an accurate test of wear resistance according to the external environment of the tire has not been performed.

On the other hand, the application of the rubber material in the wet state is widely applied not only to the tire, but also to various industrial fields for treating a slurry in which solid particles are mixed with a liquid. That is, the rubber material such as water and sewage treatment apparatus, food waste treatment apparatus, and manure treatment apparatus is widely applied not only to the above apparatuses but also to an innumerable apparatus.

However, as mentioned above, all the wear resistance tests of the rubber materials applied to these devices are performed only in the dry state, and there is no device for testing the wear resistance of the rubber materials in the wet state, in particular in the slurry state. Therefore, problems inevitably arise in the stability of various devices. In the above test, the rubber material tested in the dry state is applied to the equipment in the wet state, and thus, in a device in which a material having excellent physical properties is actually applied, the service life may be shorter than that of a relatively poor material.

 In addition, the conventional wear resistance test apparatus of a rubber material measured the rubber material which is a measurement object of abrasion resistance one by one in one test, and made data.

Therefore, even in the test period of the rubber material having the same hardness and material has a problem that must be tested under various conditions for a very long time.

SUMMARY OF THE INVENTION An object of the present invention for solving the above problems is to provide a wear measuring apparatus and a wear measuring method of a rubber material using the same, which can be tested in a wet state, especially a slurry state, as well as dry wear resistance test of the rubber material. There is.

In addition, abrasion resistance of rubber materials can be achieved even under wet conditions such as liquids close to pure water, various mixtures in liquids (sulfur, chlorine, sodium, etc. contained in rain and snow) or slurries in which solid particles are mixed in liquids. The present invention provides a wear measuring apparatus capable of testing and a wear measuring method of rubber materials using the same.

In addition, there is another purpose to data and measure the measurement of the wear rate of the rubber material in the wet state has not been provided so far.

On the other hand, even if the wear rate of the test object (rubber material) having the same material and the same hardness, the wear rate measuring device that can perform the wear rate test at the same time under different conditions, respectively and another method for measuring the wear of the rubber material using the same There is a purpose.

Wear measurement apparatus of the present invention for achieving the above object, the power conversion unit for changing the rotational movement to a linear motion in accordance with the operation of the drive unit provided in the base; A reciprocating part connected to the power converter in a horizontal direction; A pressure supporting member connected to the reciprocating part and having a weight adjusting part at an upper end thereof; A friction member coupled to a lower end of the pressure supporting member and in sliding contact with a rubber material as a measurement object; And a sensor for detecting a wear rate of the rubber material, wherein the sensor detects a distance change with the sensor by moving the pressing support member downward in accordance with wear of the rubber material.

In the wear measuring apparatus of the present invention, the friction member, sand paper having a different surface roughness is selectively employed according to the type of rubber material or the wear hardness.

In the wear measuring apparatus of the present invention, the power conversion unit, a drive motor coupled to the base; A rotating plate coupled to the rotating shaft of the drive motor; And a link having one end coupled to a portion of the rotating plate by a connecting rod and the other end coupled to the reciprocating unit by a hinge.

In the wear measuring apparatus of the present invention, the reciprocating portion, one end is coupled to the pressing support member, the other end is a horizontal movement member coupled to the hinge; And a moving plate coupled to the horizontal movement member and sliding with respect to the guide member installed on the base.

In the wear measuring apparatus of the present invention, the reciprocating unit, a height adjustment unit for initially setting the interval between the upper surface of the weight adjusting unit and the sensor; is further provided.

In the wear measuring apparatus of the present invention, a chamber is installed on the base, the liquid is contained therein; The rubber material is installed on the bottom surface of the chamber characterized in that to measure the wear rate in the wet state .

In the wear measuring apparatus of the present invention, the weight adjusting unit, a weight to change the weight according to the type of the rubber material, or wear hardness; is provided.

In the wear measuring apparatus of the present invention, a memory unit for displaying or storing the number of operations of the drive unit and the wear rate of the rubber material; is further provided.

In the wear measuring apparatus of the present invention, at least two or more reciprocating parts are connected to the power converter, and the reciprocating parts measure the wear rate of the rubber material under different conditions by varying the number of reciprocating motions. .

In the wear measuring apparatus of the present invention, at least two or more reciprocating parts are connected to the power converter, and the reciprocating parts may measure the wear rate of the rubber material under different conditions by varying the weight of the weight adjusting part. do.

A method of measuring wear of a rubber material using the wear measuring apparatus of the present invention, comprising: installing a rubber material on a bottom surface of a chamber and accommodating a liquid in the chamber; Driving the power conversion unit according to the operation of the driving unit to slide the reciprocating unit in a horizontal direction; The pressure supporting member provided in the reciprocating part is reciprocated to rub the friction member in contact with the surface of the rubber material; Measuring the distance between the pressure supporting member and the sensor in real time according to the friction degree of the rubber material; And transmitting a moving state of the pressing support member to a memory unit.

In the wear measurement method of the present invention, increasing and decreasing the weight of the weight according to the type of rubber material, or wear hardness; further includes.

Hereinafter, with reference to the accompanying drawings to explain the configuration and operation of the wear measurement apparatus of the present invention.

As shown in FIGS. 1 to 7, the wear measuring apparatus 10 includes a power converter 100, a reciprocating part 200, a pressure supporting member 300, a friction member 320, and a sensor S. The chamber C is largely configured.

The power conversion unit 100 is installed on the upper surface of the base (B) having a plate shape of the plate. In addition, the base B is coupled to a plurality of support members 101 supported in a vertical direction with respect to the bottom surface. The base B and the support member 101 are for installing the wear measuring apparatus 10 including the power converter 100 in a stable state.

In addition, the power conversion unit 100 is provided with various types of driving unit 110, in the figure shown the driving unit 110 is shown as a driving motor (110 '). That is, the power conversion unit 100 is composed of a drive motor 110 ', the rotating plate 120, the link 130 serves to convert the rotational movement into a linear movement.

The drive motor 110 ′ is installed with the body fixed to the lower side of the base B, and the rotary shaft 111 provided in the drive motor 110 ′ protrudes to the upper surface of the base B. do. The drive motor 110 ′ is connected to a power supply device and a controller for turning on / off the supply of power.

The rotating plate 120 has a through hole 121 formed in the center thereof, and the through hole 121 is inserted into the rotation shaft 111. And, it is fixed to the rotating shaft 111 by using a fastening member such as a bolt or a fastening member of various forms. In addition, a hinge hole 122 is formed in a portion of the rotating plate 120.

The hinge hole 122 penetrates the rotating plate 120 and is connected by a connecting rod 140 and a bolt having a hinge or a head inserted into the hinge hole 122. The hinge hole 122 is positioned between the outer circumferential surface of the rotating plate 120 in the through hole 121 and links 130 to be described later according to the gap between the through hole 121 and the hinge hole 122. ), The linear movement distance will be different.

One end of the link 130 is coupled to the connecting rod 140, and the other end thereof is connected to a moving plate 210 provided in the reciprocating part 200 to be described later.

On the other hand, the reciprocating portion 200 is composed of a moving plate 210 and the horizontal movement member 220.

The moving plate 210 is connected to rotate with the above-described link 130 below the central portion of one side. In other words, both ends of the link 130 are connected to the moving plate 210 and the connecting rod 140 by pins, respectively. In addition, the lower end of both sides of the moving plate 210 is a sliding reciprocating motion with respect to the guide member 230 provided in the base (B) described above.

The moving block 240 having the guide groove 241 and the guide protrusion 242 is coupled to both lower ends of the moving plate 210. In addition, the guide member 230 is formed with a guide groove 232 corresponding to the guide groove 241 and a guide protrusion 233 corresponding to the guide protrusion 242. However, the guide groove 241 and the guide protrusion 242 may be provided in a state formed in each of the lower end of both sides of the moving plate 210. In addition, the moving plate 210 is shown in the form having a rectangular shape and a flat plate shape in the accompanying drawings. However, the shape of the moving plate 210 may be provided in various ways.

The horizontal movement member 220 has an insertion hole 221 penetrated in a vertical direction at one end thereof, and a fastening hole 222 is formed at the other end thereof. In addition, the lower side of the horizontal member 220 is coupled to the connection member 250, the connection member 250 is formed with at least one connection groove 251. In addition, a fixing hole 253 having the same diameter as the fastening hole 222 is formed in the connection groove 251 to insert a portion of the horizontal movement member into the connection groove 251, and then the fastening hole ( 222 and the bolt is inserted into the fixing hole 253 to fix the horizontal movement member 220 to the connection member 250.

In addition, a plurality of coupling holes 214 and 253 are formed in the connection member 250 and the moving plate 210, respectively, and the connection member 250 is connected to the coupling holes 214 and 253 in one direction of the moving plate 210. Combined by). Here, the direction in which the connection member 250 is coupled to the moving plate 210 is coupled in a direction intersecting the aforementioned link. That is, the direction of the link 130 is arranged in the same direction as the "-" when viewed in plan view, the connecting member 250 is arranged in the same direction as "|". In addition, the horizontal movement member 220 may be provided in plural numbers and coupled to the connection grooves 251, respectively.

On the other hand, the pressing support member 300 is inserted in the vertical direction to the insertion hole 221 formed in the horizontal movement member 220 so that the pressing support member 300 is located in the insertion hole 221. And, the upper end of the pressure supporting member 300 is provided with a weight adjusting unit 310, the lower end is provided with a friction member 320.

The weight adjusting unit 310 is provided as a flat plate having a larger area than the diameter of the insertion hole 221 and the diameter of the pressing support member 300. In addition, the center portion of the weight adjusting unit 310 is provided with an insertion guide member 311 protruding in the vertical direction is the weight 312 is inserted.

The friction member 320 is a part which rubs against the rubber material 600 which is an object for measuring a wear rate. The friction member 320 is most preferably formed when a plurality of fine irregularities, such as sand paper (sand paper) is formed on its surface when friction with the rubber material located inside the chamber to be described later, to implement a state such as a slurry will be.

It is provided with. The sandpaper is provided in various kinds of different surface roughness, and can be selectively replaced according to the type of rubber material 600 or wear hardness.

That is, the lower end of the pressing support member 300 is provided to have a round shape, and fixing members 321 are provided at both sides thereof. Therefore, both ends of the sandpaper are fixed to the fixing member 321, respectively.

On the other hand, the sensor (S) is to measure the wear rate of the rubber material by measuring the distance to the pressing support member 300. That is, the sensor (S) is to set the interval with the upper surface of the insertion guide member 311 provided in the weight adjusting unit (310). The sensor (S) is to set the interval with the insertion guide member 311 in the initial state to "0".

The sensor (S) is coupled to the height adjustment unit 500 to enable height adjustment. The height adjustment unit 500 is composed of a support shaft 510 and the lifting member 520. The support shaft 510 is coupled to the upper surface of the pressure support member 300 described above, and the lifting member 520 is provided to be raised or lowered with respect to the support shaft 510.

That is, the support shaft 510 is composed of a ball screw, the lifting member 520 is lifted while rotating itself relative to the ball screw. However, the support shaft 510 may be provided to have an outer circumferential surface of the plate, and a separate pressure regulating member (not shown) may be positioned on the elevating member 520. Therefore, after the pressure adjusting member is released to manually adjust the height of the elevating member 520, the pressure adjusting member may be pressed to fix the pressure adjusting member to the support shaft 510. In addition, the lifting member 520 may be automatically lifted in accordance with the driving of the small motor.

Preferably, the wear measuring apparatus 10 of the present invention may measure the wear rate of the rubber material 600 in a wet state, particularly in a slurry state.

In this case, the chamber C is further provided in the base B described above. The chamber (C) has an upper portion is opened and the receiving portion is accommodated therein. However, a cover may be provided on the upper portion of the chamber C to open it. In addition, the chamber (C) may be built in a heating wire on the bottom and wall respectively to set the temperature inside.

And, the rubber material 600 is fixed to the bottom surface of the chamber (C), the rubber material 600 will vary depending on the number of the reciprocating portion 200 mentioned above. That is, according to the number of horizontal movement member 220 provided in the reciprocating portion 200, it is possible to perform several wear rate tests of the rubber material 600 at the same time.

In addition, the wear measuring device 10 is further provided with a memory unit (not shown), the memory unit serves to display or store the number of operations of the driving unit 110 and the wear rate of the rubber material 600 described above. do. The memory unit may be connected to a separate computer or embedded in the computer. The computer also includes an input unit, a monitor unit, and an output unit.

Referring to the state of use and wear measurement method of the wear measurement device of the present invention configured as described above are as follows.

First, the friction member 320 is fixed to the lower end of the pressure supporting member 300. The friction member 320 is provided with sand paper having various surface roughnesses. The roughness of the sandpaper is selectively employed by the experimenter according to the rubber material 600 that is the test (wear measurement) object.

Then, the rubber material 600 is fixed to the bottom surface of the chamber (C). However, the rubber material 600 may not necessarily be fixed to the bottom surface of the chamber (C). That is, when the wear rate of the rubber material 600 is to be measured in a dry state, the rubber material 600 is fixed to the base B or a plate separately installed on the base B. When the wear rate of the rubber material 600 is to be measured in a wet state, the rubber material 600 is fixed to the bottom surface of the chamber C.

Thereafter, the liquid (W) in the chamber (C) or the slurry (S: slurry) in which solid particles are mixed in the liquid (W) is accommodated. These conditions will vary depending on the equipment and parts to which the rubber material 600 is applied, and its environment. However, most preferably, the sand paper is rubbed with the rubber material in a state where the liquid W is accommodated in the chamber C, so that the sand paper has a slurry-like effect, thereby providing a wear rate in a state in which the sand paper is rubbed with the rubber material. Will be measured.

That is, to test the equipment for handling the liquid (W) or the fluidized slurry (SL), or the rubber material 600 applied to the above conditions. For example, the environment in which the tire is in contact varies depending on the season and the region, and in order to meet such conditions, the liquid W or the slurry SL is introduced into the chamber C.

The liquid (W) may contain pure water close to 100%, but may also mix rain, snow, sulfuric acid, chlorine, sodium, and the like. In addition, the slurry SL may be injected with various foreign substances such as sand and soil present on the road surface and soil components.

On the other hand, when only the liquid (W) is accommodated in the chamber (C) is obtained by the slurry SL effect by the reciprocating motion of the sand paper. That is, the slurry SL may be accommodated in the chamber C in a state in which the slurry SL is mixed with the liquid W. However, when the liquid W is accommodated inside the chamber C and the sandpaper is reciprocated, rubber may be used. The sand paper is a slurry (SL) action in terms of friction between the material and the sand paper.

When the injection of the liquid W or the slurry SL is completed in the chamber C, the pressure supporting member 300 is inserted into the insertion hole 221 formed in the horizontal movement member 220. At this time, the pressing support member 300 may be inserted in the lower direction from the upper side of the horizontal movement member 220, or from the lower side to the upper direction. However, in the illustrated figure, the pressing support member 300 is shown to be inserted from the lower side to the upper direction.

Here, the insertion hole 221 and the pressure supporting member 300 has a tolerance of loose fitting having a minimum unit of "mm". That is, when the fitting tolerance between the pressing support member 300 and the insertion hole 221 is 1 mm or less, the pressing supporting member 300 is lowered in the downward direction according to the worn state because it is provided in an interference fit state. Problems that can not occur. In addition, when the fitting tolerance between the pressing support member 300 and the insertion hole 221 has a large tolerance of several mm or more, noise is generated. Therefore, the pressing support member 300 is provided to have a loose fitting tolerance to be freely lowered in the insertion hole 221.

Meanwhile, the sand support may be fixed after the pressing support member 300 is fixed to the insertion hole 221. The pressing support member 300 is inserted into the insertion hole 221 while the sand paper is fixed. You can also Thereafter, the weight adjusting unit 310 is connected to the upper side of the pressure supporting member 300 to load the weight 312 in the insertion guide member 311 provided in the weight adjusting unit 310.

The weight of the weight 312 may vary depending on the hardness of the rubber material 600. Even if the weight of the rubber material 600 is the same, the weights 312 having different weights may be loaded on the reciprocating parts. Can be. That is, the weight characteristics of the rubber material 600 may be tested in different weight conditions, such as 0.5 kg, 1 kg, and 2 kg, respectively. The number of the weight 312 is provided according to the number of the reciprocating portion 200, the weight of the weight 312 may be selectively employed and changed from time to time by the experimenter.

Thereafter, the height of the sensor S is set by using the height adjusting unit 500 provided on the upper portion of the horizontal movement member 220. That is, the height adjusting unit 500 is to initially set the interval between the upper surface of the insertion guide member 311 provided in the weight adjusting unit 310 and the sensor (S).

Here, even if the distance between the sensor (S) and the weight adjusting unit 310 is not "0", the decimal point is recognized and data is converted into data in the memory unit. If it is assumed that the interval between the two is substantially 0.5mm, it is recognized as the initial interval before the experiment is to be the initial reference interval between the weight adjusting unit 310 and the sensor (S).

The height adjusting unit 500 is implemented manually and automatically, by raising and lowering the elevating member 520 provided in the height adjusting unit 500 according to the driving of the small motor to set the height of the sensor (S). . In addition, the experimenter may manually set the height of the elevating member 520 to set the interval between the sensor (S) and the weight adjusting unit (310).

As described above, when the conditions for testing the wear property of the rubber material 600 are set, the driving unit 110 provided in the power converter 100 is driven. The driving unit 110 is provided as a driving motor 110 ′. When the driving motor 110 ′ rotates in one direction, the rotating plate 120 coupled to the rotating shaft 111 rotates. At this time, the rotating plate 120 is coupled to the connecting rod 140 and the hinge, the connecting rod 140 is coupled to the link 130 to reciprocate the aforementioned reciprocating portion 200.

That is, the rotational motion of the driving motor 110 ′ is to convert the rotating plate 120, the connecting rod 140, and the link 130 into linear motion. One end of the link 130 is coupled to the connecting rod 140, but the other end thereof is coupled to the moving plate 210. In addition, the moving plate 210 is connected to the guide member 230 fixed to the upper surface of the base (B), or the moving block 240 is coupled to the moving plate 210, the moving block 240 is the It may be connected to the guide member 230.

In the former case, the moving plate 210 has a guide groove 241 and a guide protrusion 242, and the guide member 230 has a guide groove 232 and a guide protrusion 233.

In the latter case, a moving block 240 is coupled to a lower end of the moving plate 210, and a guide groove 241 and a guide protrusion 242 are formed in the moving block 240. In addition, the guide member 230 is a guide groove 232 and the guide protrusion 233 is formed.

In any case, the guide groove 241 has a shape corresponding to the guide protrusion 233, and the guide protrusion 242 has a shape corresponding to the guide groove 232 to the moving plate 210. Alternatively, the moving block 240 may perform a sliding reciprocating motion with respect to the guide member 230.

In addition, the upper surface of the moving plate 210 is coupled to one or a plurality of horizontal motion members 220 by a connection member 250, and the horizontal motion member 220 due to the operation of the drive motor 110 '. ) And the pressing support member 300, and the friction member 320 is a sliding reciprocating motion in the same direction as the moving plate 210.

Therefore, the surface of the rubber material 600 for testing the property of wear is in repeated sliding contact with the friction member 320 in contact. At this time, due to the load of the weight 312 provided in the weight adjusting unit 310, the friction member 320 is to press the surface of the rubber material (600).

When time elapses by the above operation, the surface of the rubber material 600 is worn, and the pressure supporting member 300 is gradually moved downward with respect to the horizontal movement member 220. At this time, the distance between the upper end of the insertion guide member 311 provided on the upper side of the pressing support member 300 and the sensor (S) is spaced, this interval is the worn value of the rubber material (600).

Even if the interval is the same rubber material 600, the wear rate of different values can be obtained by varying the loads applied to the rubber material 600, and the distance change amount measured by each sensor S is measured in the memory unit. It is delivered. In addition, the experimenter may check the number of operations of the driving unit 110 and the wear rate of the rubber material 600 in the monitor unit and the output unit.

The graph below shows the wear value of the wear rate of the rubber material 600 in real time using the wear measuring apparatus 10 of the present invention.

In the above table, the horizontal axis is the number of reciprocations of the friction part 320, and the vertical axis is the distance change between the sensor S and the pressure supporting member 300. That is, the distance between the sensor (S) and the pressure support member 300 increases as the thickness of the rubber material 600 to be abrasion test is thinner, the vertical axis represents the degree of wear of the rubber material (600).

8 and 500, which are the number of reciprocations of the friction part 320 in the table and the attached FIG. 8, have an unstable thickness change of the rubber material 600, so that the 500 times of the friction part 320 is substantially It is a standard. That is, up to 500 is to wear the rubber material 600 in advance.

In order to measure a wear rate of the rubber material 600, the friction part 320 reciprocates 3000 times, and the wear behavior of the rubber material 600 is obtained by the following equation.

Since the wear rate of the rubber material 600 exhibits a linear wear rate at 3000 or more times, further tests are not meaningful. Therefore, the number of reciprocating motions of the friction part 320 is terminated at 3000, and the number of friction parts 320 of 2500 minus 500 is substantially the wear rate of the rubber material 600.

In the accompanying drawings, NR is natural rubber, NBR is nitrile rubber (acrylonitrile butadiene), and CR is chloroprene rubber.

As described above, the wear measuring apparatus of the present invention measures the wear rate of the rubber material 600 to handle the liquid (W) or fluidized slurry (SL) provided with the rubber material 600, or the By testing the rubber material 600 applied to the conditions it is possible to give the consumer reliability by preventing the maintenance of facilities and industrial accidents.

That is, not only the tire to which the rubber material is applied, but also high pressure hose field, suction hose (water + sand) used for dredgers, cement pouring hose, wear evaluation of various conveyor belts and rolls, rubber lining used in desulfurization equipment It is to measure the wear rate of various rubber materials used and applied in a wet state such as wear evaluation, sand blasting hose, various rubber materials handling powder, and various rubber materials handling manure.

As described above, the wear measuring apparatus of the present invention can measure the wear rate of the rubber material in a wet state as well as dry the wear rate of the rubber material which is the measurement object of wear.

In addition, even in the same rubber material, it is possible to test the wear rate of the rubber material under the above conditions by varying the load applied to the rubber material.

In addition, it is possible to test a plurality of rubber wear rates at the same time with one drive operation.

In addition, the wear rate of the rubber material may be measured by creating an environment of the chamber in a state similar to that under which the rubber material is applied to a wet state (liquid or slurry).

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the technical idea of the present invention. Do.

Claims (12)

A power converter converting the rotational motion into a linear motion according to the operation of the driving part provided in the base; A reciprocating part connected to the power converter in a horizontal direction; A pressure supporting member connected to the reciprocating part and having a weight adjusting part at an upper end thereof; A friction member coupled to a lower end of the pressure supporting member and in sliding contact with a rubber material as a measurement object; And Including; a sensor for detecting a wear rate of the rubber material, The sensor, The pressing support member is moved downward in accordance with the wear of the rubber material to detect a change in distance with the sensor. The method of claim 1, The friction member, The sandpaper having a different surface roughness is selectively employed according to the type of rubber material or wear hardness. The method of claim 1, The power converter, A drive motor coupled to the base; A rotating plate coupled to the rotating shaft of the drive motor; And And one end coupled to a portion of the rotating plate by a connecting rod and the other end coupled to the reciprocating part by a hinge. The method of claim 3, wherein The reciprocating unit, A horizontal movement member having one end coupled to the pressure supporting member and the other end coupled to the link and the hinge; And And a moving plate coupled to the horizontal movement member and sliding with respect to the guide member installed on the base. The method of claim 4, wherein The reciprocating unit, And a height adjusting unit configured to initially set an interval between the upper surface of the weight adjusting unit and the sensor. The method according to any one of claims 1 to 5, The wear measuring device, It is installed on the base, the chamber therein; the liquid is accommodated; including, The rubber material is, The wear measuring apparatus, characterized in that the wear rate is installed on the bottom surface of the chamber to measure the wear rate in the wet state. The method according to claim 1 or 5, The weight control unit, And a weight to change the weight according to the type of rubber material or the wear hardness. The method of claim 6, The wear measuring device, And a memory unit for displaying or storing the number of operations of the driving unit and the wear rate of the rubber material. The method of claim 6, The wear measuring device, At least two reciprocating parts are connected to the power converter, The reciprocating unit, The wear measuring apparatus of claim 1, wherein the wear rate of the rubber material is measured under different conditions by varying the number of reciprocating motions. The method of claim 7, wherein The wear measuring device, At least two reciprocating parts are connected to the power converter, The reciprocating unit, The wear measuring apparatus of claim 1, wherein the wear rate of the rubber material is measured under different conditions by varying the weight of the weight adjusting unit. Installing a rubber material on the bottom surface of the chamber and accommodating liquid in the chamber; Driving the power conversion unit according to the operation of the driving unit to slide the reciprocating unit in a horizontal direction; The pressure supporting member provided in the reciprocating part is reciprocated to rub the friction member in contact with the surface of the rubber material; Measuring the distance between the pressure supporting member and the sensor in real time according to the friction degree of the rubber material; And And transmitting the movement state of the pressure supporting member to the memory unit. The method of claim 11, And increasing or decreasing the weight of the weight according to the type of rubber material or the wear hardness of the rubber material.

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