Drag chain tensile test device

Abstract

The utility model relates to the technical field of drag chain detection, in particular to a drag chain tensile test device, which comprises a bottom plate connected with one end of a to-be-detected drag chain, a moving part connected with the other end of the to-be-detected drag chain, a rotating shaft connected with the moving part, and a driving mechanism for driving the rotating shaft to rotate, when a tensile test is carried out, the driving mechanism drives the rotating shaft to rotate in one direction, so that the moving piece continuously reciprocates in the tensile direction of the to-be-tested drag chain; according to the utility model, the to-be-tested drag chain can be smoothly and coherently switched between extension and compression, the possibility that the to-be-tested drag chain is stopped in a tensile test is eliminated, the tensile test data of the to-be-tested drag chain is accurate and comprehensive, the continuous tensile test is facilitated, and the tensile efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drag chain detection, in particular to a drag chain tensile test device. Background Art

[0002] Drag chains are suitable for use in situations with reciprocating motion. They can pull and protect built-in cables, oil pipes, air pipes, water pipes, etc., to extend the service life of wires, cables, liquid and gas hoses and reduce consumption. Therefore, during the production process of drag chains, it is necessary to test the performance of the drag chains after production. When checking the strength of drag chains, existing drag chain testing devices mainly fix one end of the drag chain on the instrument, and then start the power device to stretch the drag chain, thereby judging the bearing capacity and strength of the drag chain.

[0003] However, when the power device pulls the drag chain during the tensile test, the extension and compression processes of the drag chain cannot be switched smoothly. When the drag chain moves to the end position in the extension or compression direction, the drag chain has an end speed along the corresponding extension or compression direction. When the power device switches to the process of being able to drive the drag chain to move along the compression or extension direction, the tensile test process of the drag chain is stagnant, resulting in the drag chain not undergoing an effective tensile test. The tensile test data of the drag chain is not accurate and comprehensive, which is not convenient for continuous tensile testing and affects the tensile efficiency. Utility Model Content

[0004] In response to the deficiencies in the prior art, the utility model provides a drag chain tensile testing device, in which the drag chain to be tested can switch smoothly and continuously between extension and compression, eliminating the possibility of the drag chain to be tested being stuck during the tensile test. The tensile test data of the drag chain to be tested is accurate and comprehensive, facilitating continuous tensile testing and improving tensile efficiency.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The utility model provides a drag chain tensile test device, comprising a base plate connected to one end of the drag chain to be tested, a moving part connected to the other end of the drag chain to be tested, a rotating shaft connected to the moving part, and a driving mechanism for driving the rotating shaft to rotate;

[0007] When a tensile test is performed, the driving mechanism drives the rotating shaft to rotate in one direction, so that the moving member continuously moves back and forth along the tensile direction of the drag chain to be tested.

[0008] Among them, the rotating shaft is provided with a guide channel, one end of the moving part cooperates with the guide channel, and when the rotating shaft rotates unidirectionally, it drives one end of the moving part to slide synchronously in the guide channel, driving the moving part to continuously move back and forth along the stretching direction of the drag chain to be tested.

[0009] Wherein, the bottom plate is installed with a guide rail, the moving part is slidably matched with the guide rail, and when the driving mechanism drives the rotating shaft to rotate, the moving part slides on the guide rail.

[0010] The guide channel includes a first guide portion and a second guide portion, two ends of the first guide portion and the second guide portion are correspondingly connected, and one end of the moving member cooperates with the first guide portion and the second guide portion;

[0011] When one end of the moving member slides in the first guide portion, the two ends of the towline to be tested are brought closer to each other to test the compression process of the towline to be tested;

[0012] When one end of the moving member slides in the second guide portion, the two ends of the towline to be tested move away from each other, so as to test the elongation process of the towline to be tested.

[0013] Wherein, the bottom plate is installed with a push-pull force sensor, and the push-pull force sensor is connected to the other end of the drag chain to be tested;

[0014] When the moving member continuously moves back and forth along the stretching direction of the towline to be measured, the push-pull force sensor obtains the push force or the pull force from the towline to be measured.

[0015] The bottom plate is provided with a protective cover, the drag chain to be tested, the moving parts, the rotating shaft and the driving mechanism are all located inside the protective cover, and the bottom plate is also provided with a heater and a temperature sensor located inside the protective cover;

[0016] The heater is used to adjust the ambient temperature inside the shield; the temperature sensor is used to detect the ambient temperature inside the shield, so as to facilitate the tensile test of the towline to be tested under different ambient temperatures.

[0017] Beneficial effects of the utility model:

[0018] In actual application, when conducting a tensile test, the driving mechanism drives the rotating shaft to rotate unidirectionally, so that the moving part continuously moves back and forth along the tensile direction of the drag chain to be tested. The drag chain to be tested can switch between extension and compression smoothly and continuously, eliminating the possibility of the drag chain to be tested being stagnant during the tensile test. The tensile test data of the drag chain to be tested is accurate and comprehensive, which facilitates continuous tensile testing and improves tensile efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the drag chain tensile test device.

[0020] Figure 2 It is a schematic diagram of the local structure of the rotating shaft and moving parts.

[0021] Figure 3 It is a structural diagram of the base plate, guide rails and moving parts.

[0022] Figure 4 Schematic diagram of the exploded structure with a rotating shaft and moving parts.

[0023] Figure 5 Schematic diagram of the connection structure between the drag chain to be tested, the push-pull force sensor and the moving part.

[0024] Figure 6 Schematic diagram of the explosion structure with base plate, shield, heater and temperature sensor.

[0025] 01. Drag chain to be tested;

[0026] 1. Bottom plate;

[0027] 101. Guide rail; 102. Push-pull force sensor; 103. Protective cover; 104. Heater; 105. Temperature sensor;

[0028] 2. Moving parts;

[0029] 3. Rotating shaft; 31. Guide channel;

[0030] 3101, first guide portion; 3102, second guide portion;

[0031] 4. Driving mechanism. DETAILED DESCRIPTION

[0032] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to examples and drawings. Specific implementation methods of the present invention will be described below. It should be noted that in the specific description of these implementation methods, for the sake of clarity and clarity, it is impossible for this specification to provide a detailed description of all features of the actual implementation methods.

[0033] refer to Figures 1 to 6 As shown, the utility model provides a drag chain tensile test device, comprising a base plate 1 connected to one end of the drag chain 01 to be tested, a moving part 2 connected to the other end of the drag chain 01 to be tested, a rotating shaft 3 connected to the moving part 2, and a driving mechanism 4 for driving the rotating shaft 3 to rotate; in actual application, the driving mechanism 4 adopts a servo motor or a driving motor. When a tensile test is performed, the driving mechanism 4 drives the rotating shaft 3 to rotate unidirectionally, so that the moving part 2 continues to move back and forth along the tensile direction of the drag chain 01 to be tested. The drag chain 01 to be tested can switch between extension and compression smoothly and continuously, eliminating the possibility of the drag chain 01 to be tested being stagnant during the tensile test. The tensile test data of the drag chain 01 to be tested is accurate and comprehensive, which facilitates continuous tensile testing and improves tensile efficiency.

[0034] refer to Figure 2As shown, in this embodiment, the rotating shaft 3 is provided with a guide channel 31, and one end of the movable member 2 cooperates with the guide channel 31. When the rotating shaft 3 rotates unidirectionally, it drives one end of the movable member 2 to slide synchronously in the guide channel 31, and drives the movable member 2 to continuously move back and forth along the stretching direction of the drag chain 01 to be tested. The other end of the drag chain 01 to be tested can move smoothly and synchronously with the movable member 2, ensuring that the drag chain 01 to be tested can carry out the tensile test continuously and smoothly.

[0035] refer to Figure 3 As shown, in this embodiment, the base plate 1 is installed with a guide rail 101, and the movable member 2 slides on the guide rail 101. When the driving mechanism 4 drives the rotating shaft 3 to rotate, the movable member 2 slides on the guide rail 101, effectively guiding the movement of the movable member 2, which is conducive to the smooth movement of the movable member 2.

[0036] refer to Figure 4 As shown, in this embodiment, the guide channel 31 includes a first guide part 3101 and a second guide part 3102, and the two ends of the first guide part 3101 and the second guide part 3102 are respectively connected to each other, and one end of the movable part 2 cooperates with the first guide part 3101 and the second guide part 3102; in actual application, when one end of the movable part 2 slides in the first guide part 3101, the two ends of the drag chain 01 to be tested are close to each other to test the compression process of the drag chain 01 to be tested; when one end of the movable part 2 slides in the second guide part 3102, the two ends of the drag chain 01 to be tested are moved away from each other to test the elongation process of the drag chain 01 to be tested, and since the two ends of the first guide part 3101 and the second guide part 3102 are respectively connected to each other, the movable part 2 can smoothly switch between the first guide part 3101 and the second guide part 3102, which is conducive to a coherent and complete tensile test of the drag chain 01 to be tested.

[0037] refer to Figure 5 As shown, in this embodiment, the base plate 1 is installed with a push-pull force sensor 102, and the push-pull force sensor 102 is connected to the other end of the drag chain 01 to be tested; when the moving part 2 continues to move back and forth along the stretching direction of the drag chain 01 to be tested, the push-pull force sensor 102 obtains the thrust or pull from the drag chain 01 to be tested, and the collection of the thrust or pull completely matches the test process of the drag chain 01 to be tested, and the pull and thrust of the drag chain 01 to be tested are accurately and completely obtained.

[0038] refer to Figure 1 、 6As shown, in this embodiment, the base plate 1 is equipped with a protective cover 103, and the drag chain 01 to be tested, the movable part 2, the rotating shaft 3 and the driving mechanism 4 are all located inside the protective cover 103. The base plate 1 is also equipped with a heater 104 and a temperature sensor 105 located inside the protective cover 103; the heater 104 is used to adjust the ambient temperature inside the protective cover 103; the temperature sensor 105 is used to detect the ambient temperature inside the protective cover 103, so as to facilitate the tensile test of the drag chain 01 to be tested at different ambient temperatures; in actual application, the heater 104 adopts a heating wire, and by heating the heating wire, the ambient temperature inside the protective cover 103 is changed, and the drag chain 01 to be tested, the movable part 2, the rotating shaft 3 and the driving mechanism 4 are all at the same ambient temperature, thereby improving the test accuracy; combined with the temperature sensor 105 to accurately detect the ambient temperature inside the protective cover 103, the tensile test of the drag chain 01 to be tested at different temperatures can be carried out, thereby improving the reliability of the test data.

[0039] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention is disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the above-disclosed technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention, which do not depart from the content of the technical solution of the present invention, are within the scope of the technical solution of the present invention.

Claims

1. A drag chain tensile test device, characterized in that: It comprises a base plate (1) connected to one end of a tow chain (01) to be tested, a moving part (2) connected to the other end of the tow chain (01) to be tested, a rotating shaft (3) connected to the moving part (2), and a driving mechanism (4) for driving the rotating shaft (3) to rotate; When a tensile test is performed, the driving mechanism (4) drives the rotating shaft (3) to rotate in one direction, so that the moving part (2) continuously moves back and forth along the tensile direction of the drag chain (01) to be tested.

2. The drag chain tensile test device according to claim 1, characterized in that: The rotating shaft (3) is provided with a guide channel (31), and one end of the moving member (2) cooperates with the guide channel (31). When the rotating shaft (3) rotates in one direction, it drives one end of the moving member (2) to slide synchronously in the guide channel (31), thereby driving the moving member (2) to continuously move back and forth along the stretching direction of the drag chain (01) to be tested.

3. The drag chain tensile test device according to claim 1, characterized in that: The base plate (1) is installed with a guide rail (101), the movable member (2) is slidably matched with the guide rail (101), and when the driving mechanism (4) drives the rotating shaft (3) to rotate, the movable member (2) slides on the guide rail (101).

4. The drag chain tensile test device according to claim 2, characterized in that: The guide channel (31) comprises a first guide portion (3101) and a second guide portion (3102), the two ends of the first guide portion (3101) and the second guide portion (3102) are respectively connected to each other, and one end of the moving member (2) cooperates with the first guide portion (3101) and the second guide portion (3102); When one end of the moving member (2) slides in the first guide portion (3101), the two ends of the towline (01) to be tested are brought closer to each other, so as to test the compression process of the towline (01) to be tested; When one end of the moving member (2) slides in the second guide portion (3102), the two ends of the towline (01) to be tested move away from each other, so as to test the elongation process of the towline (01) to be tested.

5. The drag chain tensile test device according to claim 1, characterized in that: The base plate (1) is equipped with a push-pull force sensor (102), and the push-pull force sensor (102) is connected to the other end of the drag chain (01) to be tested; When the moving part (2) continuously moves back and forth along the stretching direction of the drag chain (01) to be tested, the push-pull force sensor (102) obtains the push force or pull force from the drag chain (01) to be tested.

6. The drag chain tensile test device according to claim 1, characterized in that: The base plate (1) is equipped with a protective cover (103); the drag chain (01) to be tested, the moving part (2), the rotating shaft (3) and the driving mechanism (4) are all located inside the protective cover (103); the base plate (1) is also equipped with a heater (104) and a temperature sensor (105) located inside the protective cover (103); The heater (104) is used to adjust the ambient temperature inside the shield (103); the temperature sensor (105) is used to detect the ambient temperature inside the shield (103), so as to facilitate the tensile test of the towline (01) to be tested under different ambient temperatures.

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