CN217688195U - Medium-high speed single-shaft test device for rubber materials - Google Patents
Medium-high speed single-shaft test device for rubber materials Download PDFInfo
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- CN217688195U CN217688195U CN202221176759.1U CN202221176759U CN217688195U CN 217688195 U CN217688195 U CN 217688195U CN 202221176759 U CN202221176759 U CN 202221176759U CN 217688195 U CN217688195 U CN 217688195U
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- movable clamp
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- 238000012360 testing method Methods 0.000 title claims abstract description 44
- 239000000463 material Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 abstract description 3
- 238000002474 experimental method Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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Abstract
The utility model relates to a middle and high speed single axis test device for rubber materials, which comprises an upper bracket and a lower bracket, wherein the upper bracket is fixedly arranged at the top of the lower bracket, a guide rail is arranged in the upper bracket, a force measuring device is arranged at the top of the upper bracket, and a strain measuring device is arranged on the side surface of the upper bracket; the lower end of the force measuring device is connected with the fixed clamp; an electric cylinder is arranged in the lower support, and the output end of a push rod of the electric cylinder is arranged upwards and is connected with the movable clamp mounting seat; a movable clamp is arranged on the movable clamp mounting seat, and a sample is arranged between the movable clamp and the fixed clamp; the movable clamp mounting seat is fixed on the guide rail through a sliding block; the electric cylinder can drive the movable clamp to reciprocate along the guide rail. The utility model adopts the electric cylinder as the driving part, and provides the power required by the operation with medium and high speed and large strain rate for the test; in the test process, load data borne by the test are collected through a force measuring device, and meanwhile, the strain of the test sample is measured through a non-contact type strain device.
Description
Technical Field
The utility model belongs to the technical field of material mechanics equipment, in particular to a well high-speed single-axis test device for rubber materials.
Background
The rubber material belongs to a super-elastic material, and in practical engineering application and data analysis, experimental data under various strain and various strain rate states need to be fitted for creating a constitutive model of the rubber material, so that the material model can effectively simulate various complex application working conditions. Generally, the stress and strain relationships of the basic mechanics of rubber materials are classified into three types: uniaxial stretching, uniaxial compression, and planar shearing. In the case of uniaxial tension, low-speed tensile tests are often used, and the test rate is generally from several tens of millimeters per minute to several hundreds of millimeters per minute, which can be regarded as a low-speed quasi-static test. Because the mechanical properties of rubber materials at different strain rates are different, a testing machine with a medium-high speed stretching function is required for testing, and few testing devices capable of meeting the requirement are required at present.
At present, no unified standard exists about a middle-high speed single-shaft testing device, most testing machines are ordinary electronic universal testing machines, and the tensile speed is low. Like the utility model patent of publication No. CN206960242U, developed a tensile testing machine suitable for rubber products, carried out the purpose of automatic centre gripping to the product that is located fixed work end and removal work end in step through drive assembly, its experimental speed is conventional experimental speed equally.
At present, most power devices of the single-shaft extension test device are transmitted by belts and ball screws, the test speed is low, the test speed of the rubber material is required to be continuously improved, and the strain of the rubber material is difficult to measure in a medium-high speed loading mode.
Disclosure of Invention
The utility model discloses a solve the technical problem that exists among the well-known technology and provide a well high-speed single-axis test device for rubber materials, the device measurable quantity standard dumbbell type sample, and can be according to the experiment requirement, to high-speed loading in the sample, experimental speed can reach more than 1 ms to acquire the mechanical instinct characteristic data of rubber materials in wideer deformation rate within range.
The utility model comprises the following technical scheme: a middle-high speed single-shaft test device for rubber materials comprises an upper bracket and a lower bracket, wherein the upper bracket is fixedly arranged at the top of the lower bracket, a guide rail is arranged in the upper bracket, a force measuring device is arranged at the top of the upper bracket, and a strain measuring device is arranged on the side surface of the upper bracket; the lower end of the force measuring device is connected with the fixed clamp; an electric cylinder is arranged in the lower support, and the output end of a push rod of the electric cylinder faces upwards and is connected with the movable clamp mounting seat; a movable clamp is arranged on the movable clamp mounting seat, and a sample is arranged between the movable clamp and the fixed clamp; the movable clamp mounting seat is fixed on the guide rail through a sliding block; the electric cylinder can drive the movable clamp to reciprocate along the guide rail.
Further, the force measuring sensitive direction of the force measuring device is a vertical direction. The force measuring device transmits test force to the test sample through the connected fixed clamp.
Furthermore, an upper mounting plate of the electric cylinder is mounted on the upper portion of the electric cylinder, and a lower mounting plate of the electric cylinder is mounted on the lower portion of the electric cylinder.
Furthermore, the upper mounting plate and the lower mounting plate of the electric cylinder are fixedly mounted with the lower bracket through bolts.
Furthermore, an upper support back plate is arranged in the upper support, and the two guide rails are fixedly arranged on the upper support back plate; the two guide rails are arranged in parallel.
Furthermore, the positioning surface at the bottom of the upper bracket and the horizontal table top at the top of the lower bracket are fixedly arranged through bolts.
Furthermore, the push rod, the movable clamp mounting seat, the movable clamp, the fixed clamp and the force measuring device of the electric cylinder meet the requirement of concentricity.
The utility model has the advantages and positive effect:
1. the utility model discloses an electronic jar is as drive assembly, for the experiment provide medium and high speed, big required power of rate of strain operation and can directly drive the sample and accomplish reciprocal linear motion from top to bottom, in medium and high speed test process, through the load data that the measuring force device collection test bore, through the meeting an emergency of strain device measurement sample simultaneously.
2. The utility model discloses avoided traditional electron universal tester to adopt belt and ball's transmission mode, according to different experiment requirements, electronic jar driving parameter of accessible adjustment to realize the tensile or compression mechanical test of different rates.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic perspective view of the embodiment.
Fig. 2 is a schematic front view of the embodiment.
Fig. 3 isbase:Sub>A schematic view of the cross-sectional structurebase:Sub>A-base:Sub>A in fig. 2.
Fig. 4 is a schematic perspective view of the movable clamp mounting base.
In the figure, 1-lower support; 2-upper support; 3-an electric cylinder; 4-electric cylinder lower mounting plate; 5, mounting a plate on the electric cylinder; 6-moving the clamp mounting seat; 7-a guide rail; 8-moving the clamp; 9-upper bracket back plate; 10-fixing a clamp; 11-a force measuring device; 12-strain measuring device.
Detailed Description
To further disclose the contents, features and functions of the present invention, the following examples are given in detail in conjunction with the accompanying drawings.
Example (b): referring to the attached drawings 1-4, the medium-high speed single-shaft test device for the rubber materials comprises an upper support 2 and a lower support 1, wherein the upper support 2 is fixedly installed at the top of the lower support 1, a guide rail 7 is installed inside the upper support 2, a force measuring device 11 is installed at the top of the upper support 2, a strain measuring device 12 is installed on the side face of the upper support 2, and the strain of a test sample can be synchronously measured with the force measuring device 11 during testing. The lower end of the force measuring device 11 is connected with the fixed clamp 10; the force measuring sensitive direction of the force measuring device 11 is a vertical direction. The force measuring device 11 transmits the test force to the test specimen via the associated holding fixture 10.
An upper support back plate 9 is arranged in the upper support 2, and the two guide rails 7 are fixedly arranged on the upper support back plate 9; the two guide rails 7 are arranged in parallel. And the positioning surface at the bottom of the upper bracket 2 is fixedly arranged with the horizontal table top at the top of the lower bracket 1 through bolts.
An electric cylinder 3 is arranged in the lower support 1, and the push rod output end of the electric cylinder 3 is arranged upwards and connected with a movable clamp mounting seat 6; a movable clamp 8 is arranged on the movable clamp mounting seat 6, and a sample is arranged between the movable clamp 8 and the fixed clamp 10; the movable clamp mounting seat 6 is fixed on the guide rail 7 through a sliding block; the electric cylinder 3 can drive the movable clamp 8 to reciprocate along the guide rail 7.
The upper mounting plate 5 of the electric cylinder is installed on the upper portion of the electric cylinder 3, and the lower mounting plate 4 of the electric cylinder is installed on the lower portion of the electric cylinder 3. The upper electric cylinder mounting plate 5 and the lower electric cylinder mounting plate 4 are fixedly mounted with the lower support 1 through bolts. When the device is assembled, the push rod of the electric cylinder 3, the movable clamp mounting seat 6, the movable clamp 8, the fixed clamp 10 and the force measuring device 11 meet the concentricity requirement. The electric cylinder 3 outputs linear motion to directly drive the sample to complete vertical reciprocating motion, load data borne by a test are collected through the force measuring device 11 in the middle-high speed test process, and meanwhile strain of the sample is measured through the strain measuring device 12. According to different experiment requirements, the driving parameters can be adjusted to realize the test functions at different speeds, and the test speed can reach 1m/s.
The working principle is as follows: the push rod of the electric cylinder 3, the movable clamp mounting seat 6, the movable clamp 8, the fixed clamp 10 and the force measuring device 11 keep certain concentricity and keep certain parallelism with the guide rail 7. The sample is arranged between the movable clamp 8 and the fixed clamp 10; when the push rod of the electric cylinder vertically moves up and down, the movable clamp mounting seat 6 and the movable clamp 8 are driven to vertically move along the guide rail 7, so that the purpose of stretching the sample is achieved. At this time, the tensile stress of the sample is measured by the force measuring device 11, the strain of the sample is measured by the strain measuring device 12, and the material stress-strain data is acquired, thereby obtaining the constitutive relation of the material. According to different test requirements, the driving parameters of the electric cylinder 3 are adjusted, and the test speed is changed to obtain material data under different strain rates.
Although the preferred embodiments of the present invention have been described, the present invention is not limited to the above-described embodiments, which are intended to be illustrative only and not limiting, and many other forms can be made by one skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims. All of which fall within the scope of the present invention.
Claims (7)
1. The utility model provides a well high-speed single-axis test device for rubber materials which characterized in that: the device comprises an upper bracket (2) and a lower bracket (1), wherein the upper bracket (2) is fixedly arranged at the top of the lower bracket (1), a guide rail (7) is arranged in the upper bracket (2), a force measuring device (11) is arranged at the top of the upper bracket (2), and a strain measuring device (12) is arranged on the side surface of the upper bracket (2); the lower end of the force measuring device (11) is connected with the fixed clamp (10); an electric cylinder (3) is installed in the lower support (1), and the output end of a push rod of the electric cylinder (3) is arranged upwards and connected with a movable clamp mounting seat (6); a movable clamp (8) is arranged on the movable clamp mounting seat (6), and a sample is arranged between the movable clamp (8) and the fixed clamp (10); the movable clamp mounting seat (6) is fixed on the guide rail (7) through a sliding block; the electric cylinder (3) can drive the movable clamp (8) to reciprocate along the guide rail (7).
2. The middle and high speed uniaxial test device for rubber materials according to claim 1, characterized in that: the force measuring sensitive direction of the force measuring device (11) is a vertical direction.
3. The medium-high speed uniaxial test device for a rubber material according to claim 1, characterized in that: electric jar upper mounting panel (5) is installed on electric jar (3) upper portion, electric jar lower mounting panel (4) is installed to electric jar (3) lower part.
4. A medium-high speed uniaxial testing device for rubber materials according to claim 3, characterized in that: the upper mounting plate (5) and the lower mounting plate (4) of the electric cylinder are fixedly mounted with the lower support (1) through bolts.
5. The medium-high speed uniaxial test device for a rubber material according to claim 1, characterized in that: an upper support back plate (9) is arranged in the upper support (2), and the two guide rails (7) are fixedly arranged on the upper support back plate (9); the two guide rails (7) are arranged in parallel.
6. The medium-high speed uniaxial test device for a rubber material according to claim 1, characterized in that: and the positioning surface at the bottom of the upper bracket (2) and the horizontal table top at the top of the lower bracket (1) are fixedly arranged through bolts.
7. The middle and high speed uniaxial test device for rubber materials according to claim 1, characterized in that: the push rod of the electric cylinder (3), the movable clamp mounting seat (6), the movable clamp (8), the fixed clamp (10) and the force measuring device (11) meet the coaxiality requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221176759.1U CN217688195U (en) | 2022-05-07 | 2022-05-07 | Medium-high speed single-shaft test device for rubber materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221176759.1U CN217688195U (en) | 2022-05-07 | 2022-05-07 | Medium-high speed single-shaft test device for rubber materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217688195U true CN217688195U (en) | 2022-10-28 |
Family
ID=83739520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221176759.1U Active CN217688195U (en) | 2022-05-07 | 2022-05-07 | Medium-high speed single-shaft test device for rubber materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217688195U (en) |
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2022
- 2022-05-07 CN CN202221176759.1U patent/CN217688195U/en active Active
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