KR20060026737A - Tension or pressing test apparatus of the rubber - Google Patents

Abstract

The present invention relates to a simple tensile and simple compression and pure shear test apparatus using a biaxial tensile test equipment that enables a simple tensile, pure shear, simple compression test as well as a biaxial tensile test of a rubber material through a single device, The vertical guide pillar of the frame is provided around the upper and the lifting spiral shaft is provided with a lifting spiral shaft protruding up and down through the motor drive means in the center, the vertical guide pillar is lifted and the center is connected to the upper end of the lifting spiral shaft through the load cell A lifting plate, a table fixed to an upper portion of the vertical guide column, and having a plurality of pulleys radially equidistantly disposed around the same, and drawn out correspondingly to the pulleys around the lifting plate and passing through each pulley, respectively. At the inner end of the plurality of tension wires having a fixed grip to which the end of the rubber specimen is fixed, and the top of the table A laser strain meter provided by the support shaft at the portion to measure the strain of the rubber specimen having a plurality of tags attached thereto, and a single straight line provided at the top of the table such that one pair of the opposing pairs of fixed grips is moved without twisting. And a control unit for outputting an operation signal to the motor driving means and analyzing a signal input from the load cell and the laser strain gauge to calculate a deformation amount of the rubber specimen with respect to the load.

Description

Simple Tensile, Simple Compression and Pure Shear Testing Apparatus Using Biaxial Tensile Testing Equipment {Tension or pressing test apparatus of the rubber}

1 is a perspective view showing a test apparatus according to the present invention.

2 is a cross-sectional view taken along the line A-A of FIG.

Figure 3 is an enlarged perspective view of a straight guide rail according to the present invention.

Figure 4 is a perspective view showing a biaxial tensile test process through a fixed grip of one embodiment according to the present invention.

Figure 5 is a perspective view showing a simple tensile test process through a fixed grip of one embodiment according to the present invention.

6 is an enlarged view of a portion B of FIG. 5;

Figure 7 is a perspective view showing a pure shear test process through the fixed grip of another embodiment according to the present invention.

8 is an enlarged view of a portion C of FIG. 7;

9 is an enlarged view of a portion D of FIG. 2;

<Explanation of symbols for the main parts of the drawings>

1: frame

    11: lifting spiral shaft

    12: motor driving means

         121: a rotating body, 122: a motor, 123: an encoder

    13: vertical guide pillar

2: lifting plate

3: load cell

4: table

    41: pulley

5: tensile wire

    51: fixed grip

         511: hinge, 512: upper mesh, 513: lower mesh,

         514: fastening holding means, 515: vertical through bolt,

         516: spring, 517: nut, 518: protruding push piece

    52: round part

6: laser strain meter

    61: support shaft

7: straight guide rail

    71: recessed groove

         711: protrusion

8: control unit

9: compression test means

    91: lower compression grip

         911: Compression Specimen Prevent Flange

    92: upper compression grip

100: rubber specimen

      101: tags

200: rubber compression specimen

The present invention relates to a simple tensile and simple compression and pure shear test device using a biaxial tensile test equipment, more specifically, a simple tensile, pure shear, simple compression test as well as a biaxial tensile test of a rubber material through a single device The present invention relates to a simple tensile and simple compression and pure shear test apparatus using a biaxial tensile test equipment that enables the test.

In general, the physical properties of rubber materials, unlike metal materials, exhibit nonlinear characteristics in elastic sections, and thus cannot exhibit physical properties with a single elastic modulus like metals.

Therefore, the physical properties of rubber materials can be obtained by using non-linear material constants obtained through simple tensile, pure shear, simple compression tests as well as biaxial tensile tests.

Therefore, when measuring physical properties of rubber materials, simple tensile, pure shear, and simple compression testers used for testing metal materials are usually required, and a biaxial tensile tester for testing rubber materials is also essential. will be.

Therefore, conventionally, in measuring physical properties of rubber materials, expensive biaxial tensile tester as well as simple tensile tester, pure shear tester, and simple compression tester should be provided for each type, which has a problem that the cost of the test equipment is excessively expended. there was.

Accordingly, the present invention is to improve the "biaxial tensile tester for rubber specimens" of the Republic of Korea Patent Application No. 2002-68371 previously filed by the applicant to solve the above problems, as well as a simple tensile test of the rubber material It is an object of the present invention to provide a simple tensile and simple compression and pure shear test apparatus using a biaxial tensile test equipment to perform pure shear and simple compression tests through a single device.

The present invention for achieving the above object, a plurality of vertical guide pillar is provided on the upper periphery and the frame is provided with a lifting spiral shaft protruding up and down through the motor drive means in the center, and elevating by the vertical guide pillar A center plate is connected to an upper end of the elevating spiral shaft through a load cell, a table fixed to an upper portion of the vertical guide pillar, and having a plurality of pulleys at radial equal intervals, and a circumference of the elevating plate In the pulley is pulled out corresponding to the pulley and the inner end of each of the plurality of tension wires are provided with a fixed grip that is fixed to the end of the rubber specimen, and a plurality of tags are provided by the support shaft on the top of the table A laser strain meter for measuring the strain of the attached rubber specimen, and a pair of opposite pairs of fixed grips twisted Single linear guide rail provided on the upper portion of the table, and the control unit for outputting the operation signal to the motor driving means to analyze the signal input from the load cell and the laser strain gauge to calculate the amount of deformation of the rubber specimen to the load It is characterized by consisting of.

The motor driving means includes a rotating body provided inside and having a tab portion through which the lifting spiral shaft is fastened, and configured to rotate at a predetermined height, and a motor for rotating the rotating body through a belt. It is characterized by.

In addition, compression test means for mounting a cylindrical rubber compression specimen for the compression test is further provided between the upper portion of the load cell and the center of the table, the output shaft of the motor by converting the rotational speed of the output shaft into an electrical signal An encoder for outputting to the control unit is further provided, and the control unit outputs an operation signal to the motor driving means, analyzes a signal input from the encoder, further calculates a compression displacement of the lifting spiral shaft, and receives a signal input from the load cell. It is characterized in that it further calculates the compression load on the rubber compression test specimen for the compression displacement.

In addition, the compression test means, the lower compression grip is provided on the top of the load cell is equipped with the rubber compression test piece and the compression test piece escape prevention flange to prevent the rubber compression test piece is separated (splashing) during the test to the outside And, it is provided in the lower center of the table is characterized in that it consists of a plate-shaped upper compression grip in which the upper end of the rubber compression specimen is in close contact.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a perspective view showing a rubber tester according to the present invention, Figure 2 is a cross-sectional view taken along the line A-A of Figure 1, Figure 3 is an enlarged perspective view showing a straight guide rail provided in the table constituting the present invention.

The rubber tester according to the present invention, the frame (1) is provided with a plurality of vertical guide pillars 13 around the top and the lifting spiral shaft 11 protruding up and down through the motor drive means 12 in the center thereof. ), The elevating plate (2) and the center of the elevating plate (11) connected to the upper end of the elevating spiral shaft 11 through the load cell (3), the vertical guide pillar (13) A table 4 having a plurality of pulleys 41 fixed to the upper side and facing toward the center is provided at radial equal intervals and withdrawn in a number corresponding to the pulleys 41 around the lifting plate 2. And a plurality of tension wires 5 having fixed grips 51 fixedly fixed to various rubber specimens 100 at each inner end of each pulley 41, and supported on an upper portion of the table 4. Rubber provided to be raised and lowered through the shaft 61 and attached with a plurality of tags 101 (see FIGS. 4, 7, and 8). A laser strain meter 6 for measuring strain of the specimen 100 (see FIGS. 4, 7 and 8) and an upper portion of the table 4 such that a pair of the mutually opposed pairs of fixed grips 51 are moved without twisting. Rubber specimens for load by outputting a single linear guide rail 7 and an operation signal to the motor driving means 12 and analyzing signals input from the load cell 3 and the laser strain gauge 6. It is comprised by the control part 8 which calculates the deformation amount of 100.

And as shown in FIG. 3, the straight guide rail 7 has a recessed groove 71 including protrusions 711 on both sides thereof so that the fixed grip 5 can be linearly moved without flow. Characterized in that provided. In addition, by filling the inside of the recessed groove 71, the friction between the fixed grip 5 and the recessed groove 71 can be minimized, and the lubricant is prevented from escaping to the outside through the protrusions 711. It can be.

In addition, since the corner portion of the lower circumference of the fixed grip 5 is composed of a round portion 52, it is possible to minimize the friction while preventing damage to the recessed groove portion 71. In addition, since the linear guide rail 7 is composed of Teflon with a low frictional resistance, it is possible to reduce the coefficient of friction during the movement of the fixed grip (5).

Meanwhile, as shown in FIG. 2, the motor driving means 12 includes a tab part provided at an inner side thereof and includes a tab portion through which the elevating spiral shaft 11 penetrates and is rotatable at a predetermined height. 121 and the motor 122 which rotates this rotating body 121 through a belt.

That is, the rotor 121 is rotated only by driving the motor 122 as it is fixed to the frame 1 through a separate bracket and bearing. Therefore, the elevating spiral shaft 11 is elevated through the rotation of the rotating body 121, and the elevating plate 2 connected to the elevating spiral shaft 11 and the load cell 3 is elevated by the vertical guide pillar 13. It can be.

4 is a main part perspective view showing a biaxial tensile test process through a fixed grip of an embodiment according to the present invention, the fixed grip 51 of an embodiment according to the present invention, the inner side through the hinge shaft 511 of the outer side Vertical through bolts 515 provided to vertically penetrate the upper and lower engaging pieces 512 and 513, and the upper and lower engaging pieces 512 and 513 so as to maintain the tightening state of the upper and lower engaging pieces 512 and 513. It consists of a tightening holding means 514 consisting of a nut 517 that is fastened to the protruding portion of the vertical through bolt 515 spring 516.

In addition, the rubber specimen 100 mounted on the fixed grip 51 may be formed in a disc shape in which a plurality of fixed grips 51 are fixed at radial equal intervals to enable a biaxial tensile test.

Therefore, through the tension of the plurality of fixed grips 51 which are moved radially outward from the top of the table (4) is to enable a biaxial tensile test of the rubber specimen 100 consisting of a disc.

On the other hand, the upper surface of the disk-shaped rubber specimen 100 is provided with a plurality of tags 101 to measure the amount of deformation in the laser strain gauge (6).

Figure 5 is a major perspective view showing a simple tensile test process through a fixed grip of an embodiment according to the present invention, Figure 6 is an enlarged view of portion B of FIG.

First, the fixed grip 51 used for the simple tensile test is the same as the fixed grip 51 of the above-described embodiment. In other words, the fixed grip 51 is the upper and lower engagement pieces (512,513) and the upper and lower engagement pieces (512,513) that the inner side is engaged with each other through the hinge shaft 511 of the outer side, so as to maintain the tightening state Tightening holding means 514 consisting of a vertical through bolt 515 provided to penetrate perpendicularly to the engaging pieces (512, 513) and a nut (517) is fastened to the protrusion of the vertical through bolt 515 so that the spring (516) It consists of.

In addition, the fixed grip 51 is fixed to the front and rear ends through a pair of fixed grips 51 which are moved on the linear guide rails 7, and is composed of a diaphragm having a width narrower than a length.

Therefore, it is to enable a simple tensile test through the tension of the pair of fixed grips 51 which are carried on the linear guide rail (7).

7 is a main perspective view showing a pure shear test process through a fixed grip of another embodiment according to the present invention, Figure 8 is an enlarged view of portion C of FIG.

Accordingly, the pair of fixed grips 51 moving along the linear guide rails 7 include upper and lower engagement pieces 512 and 513, which are engaged with each other through the outer hinge shaft 511, and the upper and lower pieces. The vertical through bolt 515 provided to penetrate perpendicularly to the upper and lower engagement pieces 512 and 513 so as to maintain the tightening state of the engaging pieces 512 and 513, and the spring 516 on the protrusion of the vertical through bolts 515 It consists of a tightening holding means 514 made of a nut 517 to be fastened, and a protrusion pressing piece 518 protruding on both sides of the upper and lower engagement pieces.

In addition, the rubber specimen 100 is fixed to the upper and lower engaging pieces 512 and 513 and the protruding Nuru piece 518 as the front and rear ends thereof, and is composed of a diaphragm having a width wider than the length thereof. Therefore, a simple shear test is made possible through the tension of the pair of fixed grips 51 moving along the linear guide rail 7 and including the protruding pressing piece 518.

Hereinafter, the process of the biaxial tensile test, simple tensile test and pure shear test through the tester of the present invention configured as described above are as follows.

First, referring to the biaxial tensile test process as shown in Figs. 1,2 and 4, first of all the table 4 in the disk-shaped fixed grip 51 connected to the lifting plate 2 and the wire through the disk Equipped with a biaxial tensile test rubber specimen (100).

Next, the control unit 8 outputs an operation signal of the motor driving means 12 to lower the elevating spiral shaft 11. That is, by driving the motor 122 constituting the motor driving means 12 to rotate the rotating body 121 through the belt so that the lifting spiral shaft 11 which is fastened to penetrate the rotating body 121 is lowered.

Then, the lifting spiral shaft 11 is lowered and at the same time the lifting plate 2 and the tension wire 5 fixed around it are lowered, so that each fixing grip 51 fixed to the tension wire 5 is in all directions. It is tensioned.

Therefore, it is possible to perform a test in the biaxial tensile state to tension the disk-shaped rubber specimen 100 in all directions.

In addition, while performing the test as described above, the controller 8 analyzes the signals input from the load cell 3 and the laser strain gauge 6 to determine the amount of deformation according to the biaxial tensile test of the disk-shaped rubber specimen against the load. It can be calculated. That is, the load cell 3 measures the load applied to the disc shaped rubber specimen 100 in real time and outputs the signal to the controller 8, and the laser strain measuring instrument 6 measures the disc shaped rubber specimen 100 in real time. By measuring the biaxial tensile strain of and outputting the signal to the controller 8, the controller 8 can calculate the biaxial tensile strain of the rubber specimen according to the load change in real time.

On the other hand, by repeating the biaxial tensile test by repeating the lifting operation of the elevating plate 2, it is possible to increase the reliability of the biaxial tensile test.

In addition, the biaxial tensile test may be performed in a plurality of repetitive successive tests to measure stabilized physical properties according to the Mullins effect. That is, the Mullins effect is a phenomenon in which the stress and load values of rubber materials become smaller when the load is repeatedly applied in the same strain range, and the variation difference decreases according to the number of repetitions so that the stress and load values are the same at a certain number of times. Will speak of the effect.

In addition, referring to the simple tensile test process as shown in Figs. 1.2 and 5, 6, first, the fixed grip 51 is connected to the four sides of the table 4 through the lifting plate 2 and the tension wire (5). The front and rear ends of the simple tensile test rubber specimen 100 consisting of a diaphragm whose width is relatively narrower than the length is fixed to a pair of fixed grips 51 which are moved on a linear guide rail 7.

Next, the control unit 8 outputs an operation signal to the motor driving means 12 to lower the elevating spiral shaft 11. That is, by driving the motor 122 constituting the motor driving means 12 to rotate the rotating body 121 through the belt so that the lifting spiral shaft 11 which is fastened to penetrate the rotating body 121 is lowered.

Then, the elevating spiral shaft 11 is lowered and the tension wire 5 connected to the elevating plate 2 and the pair of fixed grips 51 is lowered, whereby a pair of fixed grips fixed to the tension wires 5 are provided. 51 is tensioned toward the outside of the table.

Therefore, the rubber specimen 100 of the diaphragm to test the simple tension can be performed to test the state of the simple tension.

In addition, while performing the above test and at the same time, the control unit 8, by analyzing the signals input from the load cell 3 and the laser strain gauge 6, the load according to the simple tensile test of the diaphragm rubber specimen 100 against the load And the amount of deformation can be calculated. That is, the load cell 3 measures the load applied to the diaphragm rubber specimen 100 in real time and outputs this signal to the controller 8, and the laser strain gauge 6 performs the simplicity of the diaphragm rubber specimen 100 in real time. By measuring the tensile strain and outputting the signal to the controller 8, the controller 8 can calculate the simple tensile strain of the rubber specimen according to the load change in real time.

In performing the simple tensile test as described above, the fixed grip 51 fixing the front and rear ends of the diaphragm rubber specimen 100 is moved by the recessed groove 71 of the linear guide rail 7 to fix the grip 51. It is possible to enable precise testing as the c) is prevented from moving or twisting during movement.

On the other hand, by repeating the simple pulling test by repeating the lifting operation of the lifting plate 2, it is not possible to obtain a stabilized rubber property value.

In addition, when explaining the pure shear test process as shown in FIGS. 1,2 and 7,8, first, the fixed grip is connected to the four sides of the table 4 through the lifting plate 2 and the tension wire (5) A pair of fixed grips 51 which are moved by a linear guide rail 7 and provided with protruding pressing pieces 518 on both sides of the upper and lower engagement pieces (width 1) having a width wider than the length (width 1). : Fix the front and rear ends of the rubber specimen for pure shear test composed of length 10).

Next, the control unit 8 outputs an operation signal to the motor driving means 12 to lower the elevating spiral shaft 11. That is, by driving the motor 122 constituting the motor driving means 12 to rotate the rotating body 121 through the belt so that the lifting spiral shaft 11 which is fastened to penetrate the rotating body 121 is lowered.

Then, the elevating spiral shaft 11 is lowered and the tension wire 5 connected to the elevating plate 2 and the pair of fixed grips 51 is lowered, whereby a pair of fixed grips fixed to the tension wires 5 are provided. 51 is tensioned toward the outside of the table.

Therefore, it is possible to perform the test of the pure shear test rubber specimen 100 through the above process.

In addition, while performing the test as described above, the control unit to calculate the amount of deformation according to the pure shear test of the diaphragm rubber specimen 100 to the load by analyzing the signal input from the load cell (3) and the laser strain gauge (6) It can be. That is, the load cell 3 measures the load applied to the diaphragm rubber specimen 100 in real time and outputs this signal to the controller 8, and the laser strain meter 6 calculates the pure shear deformation amount of the diaphragm rubber specimen in real time. By measuring and outputting the signal to the controller 8, the controller 8 can calculate the pure shear deformation amount of the rubber specimen 100 according to the load change in real time.

In the pure shear test as described above, the fixed grip 51 having the front and rear ends of the rubber specimens of the diaphragm is moved by the recessed groove 71 of the linear guide rail 7. It is possible to allow precise testing as it is prevented from moving or twisting during movement.

On the other hand, by repeating the elevating operation of the elevating plate (2) by repeating the pure shear test can be obtained a stabilized test results.

On the other hand, Figure 9 is an enlarged view of the portion D of Figure 2, as shown in Figures 1,2 and 9, in the configuration of the tester of the embodiment described above, the top of the load cell 3 and the table 4 Between the center lower portion is further provided with a compression test means (9) for mounting the rubber compression test specimen 200 for the compression test, the output shaft 123 of the motor 122 to the electric speed of the output shaft 123 An encoder 123 is further provided to convert the red signal to the control unit 8, and the control unit 8 outputs an operation signal to the motor driving unit 12 to output a signal input from the encoder 124. Analyze to further calculate the compression displacement of the elevating spiral shaft 11 and to analyze the signal input from the load cell (3) to further calculate the compression load and deformation amount applied to the rubber compression specimen 200 for the compression displacement It is characterized by.

In addition, the compression test means (9) is provided on the upper portion of the load cell (3) is the rubber compression specimen 200 is mounted so that the rubber compression specimen 200 is prevented from splashing out of the outside during the test Compression specimen departure prevention flange 911 is provided with a lower compression grip 91, and the upper compression grip 92 of the plate-shaped is provided in the lower center of the table (4) is in close contact with the upper end of the rubber compression specimen (200) It is characterized by being configured.

Therefore, the simple compression test process through the tester according to the present invention will be described.

1,2 and 9, first, between the lower compression grip 91 provided in the upper portion of the load cell 3 and the upper compression grip 92 provided in the lower center of the specimen table (4) The rubber compression test specimen 200 for a simple compression test is mounted on it.

Next, the control unit 8 outputs an operation signal to the motor driving means 12 to raise the elevating spiral shaft 11. That is, by rotating the rotor 121 through the belt by driving the motor 122 constituting the motor driving means 12 to elevate the lifting spiral shaft 11 which is fastened to penetrate the rotor 121.

Then, as the lifting spiral shaft 11 is raised and the lifting plate 2 including the load cell 3 is raised, the lower compression grip 91 provided at the upper part of the load cell 3 is raised to obtain a rubber compression specimen ( 200).

Therefore, by compressing the rubber compression specimen 200 through the lower compression grip 91 is provided with the load cell 3 to be elevated can be carried out a test of the compressed state.

In addition, while performing the test as described above, the control unit analyzes the signal input from the encoder 123 included in the motor driving unit to calculate the compression displacement of the elevating spiral shaft 11 and the signal input from the load cell 3. By calculating the compression load on the rubber compression test specimen 200 for the compression displacement it is possible to calculate the compression load for the compression displacement.

On the other hand, by repeating the simple lifting test by repeating the lifting operation of the lifting plate 2 can be obtained a stabilized test results.

Therefore, as described above, the rubber specimen tester according to the present invention, as well as the biaxial test for the rubber material, as well as simple tensile, pure shear and simple compression.

As described above, the biaxial tension of the rubber material, as well as the simple tensile, pure shear, and simple compression test can be performed through a single device, it is possible to measure the physical properties of the rubber material more precise with one device, of course Therefore, the cost savings incurred in the provision of each test equipment can be obtained.

While the present invention has been described with reference to the accompanying drawings, it will be apparent to those skilled in the art that many various obvious modifications are possible without departing from the scope of the invention from this description. Therefore, the scope of the invention should be construed by the claims described to include many such variations.

Claims (10)

A frame (1) having a plurality of vertical guide pillars (13) provided at an upper circumference and having a lifting spiral shaft (11) protruding up and down through a motor driving means (12) at the center thereof; A lifting plate 2 which is lifted by the vertical guide pillar 13 and whose center is connected to an upper end of the lifting spiral shaft 11 through a load cell 3; The table 4 is fixed to the upper portion of the vertical guide pillar 13 and provided with a plurality of pulleys 41 at radial equal intervals, and A plurality of fixing grips 51 are drawn around the elevating plate 2 to correspond to the pulleys 41 and pass through each pulley 41, and each end of the elevating plate 2 is fixed to an end of the rubber specimen 100. Tension wire (5), A laser strain gauge 6 provided on the upper portion of the table 4 by a support shaft 61 for measuring a strain of the rubber specimen 100 having a plurality of tags 101 attached thereto; A single straight guide rail 7 provided on the top of the table 4 so that one pair of the pair of fixed grips 51 facing each other moves without twisting, and And a controller 8 which outputs an operation signal to the motor driving means 12 and analyzes the signals input from the load cell 3 and the laser strain gauge 6 to calculate the amount of deformation of the rubber specimen with respect to the load. Simple tensile and simple compression and pure shear test equipment using biaxial tensile test equipment. According to claim 1, wherein the fixing grip 51, the upper and lower engaging pieces 512, 513 and the upper and lower engaging pieces 512, 513 in which the inner side is engaged with each other through the outer hinge shaft 511, the tightened state. Vertical through bolt 515 provided to vertically penetrate the upper and lower engaging pieces (512, 513) to maintain the and the nut 517 is fastened to the protruding portion of the vertical through bolt 515 spring 516 Consisting of tightening holding means 514 made; The rubber specimen 100 is a simple tension and simple compression using a biaxial tensile test equipment, characterized in that the disk is fixed to the radial equal intervals through the plurality of fixed grips 51 to perform a biaxial tensile test Pure shear test device. According to claim 1, wherein the fixing grip 51, the upper and lower engaging pieces 512, 513 and the upper and lower engaging pieces 512, 513 in which the inner side is engaged with each other through the outer hinge shaft 511, the tightened state. Vertical through bolt 515 provided to vertically penetrate the upper and lower engaging pieces (512, 513) to maintain the and the nut 517 is fastened to the protruding portion of the vertical through bolt 515 spring 516 Consisting of tightening holding means 514 made; The rubber specimen 100 is a diaphragm having a width narrower than the length of the front and rear ends of the rubber specimen 100 to be fixed by a pair of fixed grips 51 which are moved on the straight guide rails 7 to perform a simple tensile test. Simple tensile and simple compression and pure shear test apparatus using biaxial tensile test equipment characterized in that the configuration. The upper and lower engaging pieces 512 and 513 of claim 1, wherein the pair of fixed grips 51 moving along the straight guide rails 7 are engaged with each other by the inner side through the outer hinge axis 511. And a vertical through bolt 515 provided to penetrate perpendicularly to the upper and lower engagement pieces 512 and 513 so as to maintain the tightening state of the upper and lower engagement pieces 512 and 513 and the protrusions of the vertical through bolts 515. A tightening holding means (514) made of a nut (517) to which the spring (516) is fastened, and a protruding pressing piece (518) protruding on both sides of the upper and lower engaging pieces; The rubber specimen 100 is fixed to the upper and lower engaging pieces 512 and 513 and the protruding Nuru piece 518, the front and rear ends are characterized in that the width is relatively wider than the length to perform a simple shear test Simple tensile and simple compression and pure shear test equipment using biaxial tensile test equipment. The motor driving means 12 according to any one of claims 1 to 4, A rotating part 121 provided inside and including a tab part through which the elevating spiral shaft 11 is penetrated and rotatably provided at a predetermined height, and a motor for rotating the rotating body 121 through a belt ( 122) Simple tensile and simple compression and pure shear test apparatus using biaxial tensile test equipment, characterized in that consisting of. According to claim 5, Compression test means (9) is further provided on the upper portion of the load cell (3) and the central lower portion of the table (4) is equipped with a rubber compression specimen 200 for the compression test, The output shaft 123 of the motor 122 is further provided with an encoder 123 for converting the number of revolutions of the output shaft 123 into an electrical signal to output to the control unit 8, The controller 8 outputs an operation signal to the motor driving means 12, analyzes a signal input from the encoder 123, and further calculates a compression displacement of the elevating spiral shaft 11, and then loads the load cell 3. Simple tensile and simple compression and pure shear test apparatus using a biaxial tensile test equipment, characterized in that it further calculates the compression load applied to the rubber compression specimen 200 for the compression displacement by analyzing the signal input from the). The compression test means (9) according to claim 6, The lower compression is provided at the top of the load cell 3 is equipped with the rubber compression specimen 200 and the compression specimen departure prevention flange 911 around the rubber compression specimen 200 to prevent the rubber compression specimen 200 from being separated to the outside during the test Simple tension using a biaxial tensile test equipment, characterized in that the grip 91 and the upper compression grip 92 of the plate shape is provided in the lower center of the table 4 is in close contact with the upper end of the rubber compression specimen 200 And simple compression and pure shear test equipment. The center of the straight guide rail (7) according to claim 1, Protruding portion 711 is provided on both sides, and the fixed grip 5 is inserted into the groove, which is moved without twisting and is filled with lubricant. And simple compression and pure shear test equipment. According to claim 8, wherein the corner of the lower periphery of the fixed grip (5), Simple tensile and simple compression and pure shear test device using a biaxial tensile test equipment, characterized in that the round portion 52 is configured to minimize the friction while preventing damage to the recessed groove (71). The method of claim 8, wherein the straight guide rail (7), Simple tensile and simple compression and pure shear test apparatus using a biaxial tensile test equipment, characterized in that consisting of Teflon to reduce the friction coefficient during the movement of the fixed grip (5).

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