CN-224202926-U - Polymer material low-temperature environment simulation test equipment

CN224202926UCN 224202926 UCN224202926 UCN 224202926UCN-224202926-U

Abstract

The utility model discloses high polymer material low-temperature environment simulation test equipment which comprises a box body, a sample box, a moving assembly, a stretching assembly, a force value detection piece and a displacement detection piece, wherein the sample box is arranged in the box body, the moving assembly comprises a clamping piece for taking a sample from the sample box and a moving piece for driving the clamping piece to move, the stretching assembly comprises a clamp of a stretching test piece and a driving piece for driving the clamp to move, the clamp stretches the sample taken by the clamping piece, the force value detection piece is connected with the clamp, and the displacement detection piece is connected with the clamp. The test system has the advantages that multiple groups of samples are arranged in the sample box, the pre-cooling time of the samples is controllable, the moving assembly takes out the required samples and conveys the samples to the stretching assembly, the stretching assembly performs a stretching test on the samples, the horizontal low-temperature stretching device is changed into the vertical low-temperature stretching device, the observation of the stretching states of the experiment and the samples is more visual, the testing accuracy is improved, the automatic program enables the test to be controllable and accurate, and human errors are reduced.

Inventors

SHEN XIAN
Jiang Chunchen
KANG DONGDONG
Ge Jiasen
CHEN HANPENG
XU PENGFEI
LIANG BIN

Assignees

中天科技装备电缆有限公司

Dates

Publication Date: 20260505
Application Date: 20250529

Claims (10)

1. A high polymer material low-temperature environment simulation test device is characterized by comprising A case (1); a sample box (2) arranged in the box body (1); The moving assembly (3) comprises a clamping piece (31) for taking a sample from the sample box (2) and a moving piece for driving the clamping piece (31) to move, and the moving assembly (3) is arranged in the box body (1); the stretching assembly (4) comprises a clamp for stretching the sample (8) and a driving piece for driving the clamp to move, the clamp clamps the sample (8) taken by the clamping piece (31), and the stretching assembly (4) is arranged in the box body (1); A force value detecting member (5) connected to the jig; and the displacement detection piece (6) is connected with the clamp.
2. The apparatus for simulating a low-temperature environment of a polymer material according to claim 1, wherein the movable member is a first electric telescopic rod (32), and the clamping member (31) is provided on the first electric telescopic rod (32).
3. The device for simulating the low-temperature environment of the high-molecular material according to claim 1, wherein the clamp comprises an upper clamp (41) and a lower clamp (42), the upper clamp (41) clamps one end of the sample (8), the lower clamp (42) clamps the other end of the sample (8), and the stretching directions of the upper clamp (41) and the lower clamp (42) are vertical directions.
4. The apparatus for simulating a low-temperature environment of a polymer material according to claim 3, wherein said driving member is provided as a second electric telescopic rod (43), and said lower jig (42) is provided on said second electric telescopic rod (43).
5. The apparatus for simulating a low-temperature environment of a polymer material according to claim 3, wherein said force value detecting member (5) is provided on said upper jig (41).
6. The apparatus for simulating a low-temperature environment of a polymer material according to claim 3, wherein said displacement detecting member (6) is provided on said lower jig (42).
7. The apparatus for simulating and testing a low-temperature environment of a polymer material according to claim 3, wherein the upper clamp (41) and the lower clamp (42) are respectively provided with a first control cylinder (45).
8. The apparatus for simulating a low-temperature environment of a polymer material according to claim 1, wherein the clamping member (31) is provided as an experimental clamp on which a second control cylinder is provided.
9. The high polymer material low-temperature environment simulation test device according to claim 8, wherein a control module (7) is arranged outside the box body (1), and the control module (7) is electrically connected with the test device.
10. The high polymer material low-temperature environment simulation test device according to claim 1, wherein the force value detection part (5) is provided as a force value sensor, and the displacement detection part (6) is provided as a displacement sensor.

Description

Polymer material low-temperature environment simulation test equipment Technical Field The utility model relates to a cable tensile test structure, in particular to high polymer material low-temperature environment simulation test equipment. Background The low-temperature tensile test is mainly used for checking the mechanical and physical properties of the cable material in a low-temperature state, and the low-temperature tensile test is adopted for the insulated wire core and the cable sheath which cannot be subjected to the low-temperature winding test. The cable for the wind power generation system, which is abbreviated as wind power cable, comprises a cable for blade lightning protection, a generator winding cable, a cable laid in a tower, a cable from the tower to a box, a cable from the box to a booster station and the like, and generally needs to meet the low temperature resistant use requirement of special environment, and the quality of the low temperature performance of the material has a certain influence on the service life of the wind power cable. According to the outer diameter of the wind energy cable, the low-temperature performance of the test material of the low-temperature tensile test is mainly adopted. The test personnel can also use test equipment for measuring the displacement distance of the clamping heads to measure the distance between the marking lines. If the equipment and the samples are cooled in the air, the cooling time is not less than 4 hours, the test equipment is precooled and the samples are not precooled, the cooling time can be shortened to 2 hours, and if the test equipment and the samples are precooled for 4 hours, each sample is fixed at the equipment and then the cooling time is not less than 30 minutes. In general, existing detection methods have the following drawbacks: ① At present, whether a sample is broken or not is mainly observed through visualization, the hysteresis of time exists, namely, the fact that the sample is broken and then the suspension of equipment is controlled is found, the actually measured result is larger, the low-temperature stretching device is in a horizontal placement state and inconvenient to observe, ② is large in difference of precooling time and sample precooling time through different equipment, efficiency is low, ③ needs manual operation when the low-temperature sample is replaced, random errors exist in test results due to operation methods of different testers and cooling rates of different low-temperature boxes, the replacement time is too long or the equipment is frozen and cannot be used for continuing the next low-temperature stretching experiment, ④ low-temperature test belongs to low-temperature operation, and the risk of frostbite exists in long-term operation. Disclosure of Invention The utility model overcomes the defects of the prior art and provides the high polymer material low-temperature environment simulation test equipment. In order to achieve the above purpose, the utility model adopts the following technical scheme: a high-molecular material low-temperature environment simulation test device comprises A case; The sample box is arranged in the box body; The moving assembly comprises a clamping piece for taking a sample from the sample box and a moving piece for driving the clamping piece to move; The stretching assembly comprises a clamp for stretching the test piece and a driving piece for driving the clamp to move, and the clamp stretches the sample taken by the clamping piece; the force value detection piece is connected with the clamp; and the displacement detection piece is connected with the clamp. Further specifically, the moving member is provided as a first electric telescopic rod, and the holding member is provided on the first electric telescopic rod. Further specifically, the clamp comprises an upper clamp and a lower clamp, wherein the upper clamp clamps one end of a sample, the lower clamp clamps the other end of the sample, and the stretching directions of the upper clamp and the lower clamp are vertical directions. Further specifically, the driving member is provided as a second electric telescopic rod, and the lower clamp is provided on the second electric telescopic rod. Further specifically, the force value detecting member is provided on the upper jig. Further specifically, the displacement detecting member is provided on the lower jig. Further specifically, a first control cylinder is arranged on each of the upper clamp and the lower clamp. Further specifically, the clamping piece is set to be an experimental clamp, and a second control cylinder is arranged on the experimental clamp. Further specifically, a control module is arranged outside the box body, and the control module is electrically connected with the test equipment. The utility model solves the defects existing in the background technology, and has the following beneficial effects: The test device has the advantages that multip