Nuclear reactor cable harness torsion test equipment

Abstract

The utility model provides a nuclear reactor cable bundle torsion test device comprising an adjusting structure and a cable clamp, and the surface of the adjusting structure is slidably connected with the cable clamp. The second sliding groove is formed in the surface of the adjusting structure and plays a sliding adjusting role on the cable clamp in the adjusting structure; the limiting handle is rotationally connected to the interior of the clamp main body of the cable clamp and plays a role in limiting and fixing the cable in the cable clamp; according to the cable bundle torsion test equipment, the two cable clamps can be used for fixing the two ends of the test cable, the distance between the two cable clamps can be adjusted according to test requirements, the motor is used for carrying out torsion test on the cable, and the anti-torsion capability of the cable under extreme conditions can be well detected.

Description

Technical Field

[0001] The utility model relates to the field of cable testing, in particular to a torsional testing device for a nuclear reactor cable bundle. Background Technique

[0002] The torsional test of the nuclear reactor cable bundle is an important part of the cable test in nuclear power plants. It is mainly used to simulate the torsional stress conditions that the cable may encounter in the actual operating environment, so as to test the torsional performance, mechanical strength, wear resistance of the insulation and sheath materials of the cable bundle and other key indicators.

[0003] Most of the current cable bundle torsional devices on the market cannot adjust the distance between the devices according to the length of the cable to be detected. This means that when facing cable bundles of different lengths, the operator needs to manually adjust each part of the device to ensure that the cable bundle can be evenly stressed during the test and does not appear over-tight or loose. Therefore, there is an urgent need for a cable detection device that can flexibly adjust the device distance. Content of the Utility Model

[0004] The purpose of the utility model is to provide a torsional testing device for a nuclear reactor cable bundle to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A torsional testing device for a nuclear reactor cable bundle, including an adjustment structure and a cable clamp, and the cable clamp is slidably connected to the surface of the adjustment structure;

[0006] A second chute, which is opened on the surface of the adjustment structure and plays a role in sliding adjustment of the cable clamp within the adjustment structure;

[0007] A limit handle, which is rotatably connected inside the clamp body of the cable clamp and plays a role in limiting and fixing the cable within the cable clamp.

[0008] Preferably, the adjustment structure includes a fixed plate, a first chute, a second chute and threaded mounting holes. The first chute is opened on the surface of the fixed plate, and there are two groups of first chutes symmetrically arranged on the surface of the fixed plate. The second chute is opened on the surface of the fixed plate and is centered between the two groups of first chutes. The threaded mounting holes are opened through the surface of the fixed plate, and there are four groups of threaded mounting holes symmetrically arranged at the four corners of the surface of the fixed plate.

[0009] Preferably, the cable clamp includes a driving motor, a motor support rod, a clamp body, a limit pin, a cable jack, and a limit handle. The bottom end of the driving motor is fixedly connected to the motor support rod, the output shaft of the driving motor is fixedly connected to the rear end of the clamp body, a cable jack is centrally opened on the surface of the clamp body, through openings are opened at the top and bottom of the clamp body, a limit handle is rotatably connected inside the opening, a jack is opened on the surface of the clamp body, there are two groups of jacks and they are symmetrically arranged on the surface of the clamp body, and a limit pin is inserted into each group of jacks.

[0010] Preferably, the motor support rod of the cable clamp is slidably installed inside the second chute of the adjustment structure, and the limit pin of the cable clamp is slidably installed inside the first chute of the adjustment structure.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] A nuclear reactor cable bundle torsion test device proposed by the present utility model includes an adjustment structure and a cable clamp. The cable clamp is slidably connected to the surface of the adjustment structure; a second chute is opened on the surface of the adjustment structure, which plays a role in sliding adjustment of the cable clamp inside the adjustment structure; a limit handle is rotatably connected inside the clamp body of the cable clamp, which plays a role in limiting and fixing the cable inside the cable clamp; this cable bundle torsion test device can fix both ends of the test cable by using two cable clamps, and can adjust the distance between the two cable clamps according to the test requirements, and use the motor to conduct a torsion test on the cable, and can well detect the anti-torsion ability of the cable under extreme conditions. Description of the Drawings

[0013] The following further describes the present utility model in conjunction with the drawings:

[0014] Figure 1 Schematic diagram of the nuclear reactor cable bundle torsion test device of the present utility model Figure 1 ;

[0015] Figure 2 Schematic diagram of the nuclear reactor cable bundle torsion test device of the present utility model Figure 2 ;

[0016] Figure 3 Schematic diagram of the cable clamp of the nuclear reactor cable bundle torsion test device of the present utility model.

[0017] As shown in the figure: 1. Adjustment structure; 2. Cable clamp; 3. Fixed plate; 4. First chute; 5. Second chute; 6. Threaded mounting hole; 7. Driving motor; 8. Motor support rod; 9. Clamp body; 10. Limit pin; 11. Cable jack; 12. Limit handle. Detailed Embodiment

[0018] To more clearly illustrate the overall concept of the present utility model, the following will be described in detail by way of examples in combination with the accompanying drawings of the specification.

[0019] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present utility model is not limited by the specific embodiments disclosed below.

[0020] In addition, in the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0021] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements. However, indicating a direct connection means that there is no connection relationship constructed by an excessive structure between the two connected main bodies, and only a whole is formed by being connected through a transmission structure. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0023] Please refer to Figures 1 to 3, the present utility model provides a technical solution: a nuclear reactor cable bundle torsion test device, including an adjustment structure 1 and a cable clamp 2, wherein the cable clamp 2 is slidably connected to the surface of the adjustment structure 1;

[0024] A second chute 5 is opened on the surface of the adjustment structure 1, which plays a role in sliding adjustment of the cable clamp 2 within the adjustment structure 1;

[0025] A limit handle 12 is rotatably connected inside the clamp body 9 of the cable clamp 2, which plays a role in limiting and fixing the cable within the cable clamp 2;

[0026] This cable bundle torsion test device can fix both ends of the test cable by using two cable clamps 2, and can adjust the distance between the two cable clamps 2 according to the test requirements. The motor is used to perform the torsion test on the cable, and it can well detect the anti-torsion ability of the cable under extreme conditions;

[0027] The adjustment structure 1 includes a fixing plate 3, a first chute 4, a second chute 5 and threaded mounting holes 6. The first chute 4 is opened on the surface of the fixing plate 3. There are two groups of the first chute 4 and they are symmetrically arranged on the surface of the fixing plate 3. The second chute 5 is opened on the surface of the fixing plate 3 and is centrally arranged between the two groups of the first chute 4. The threaded mounting holes 6 are opened through the surface of the fixing plate 3. There are four groups of the threaded mounting holes 6 and they are symmetrically arranged at the four corners of the surface of the fixing plate 3;

[0028] During use, the adjustment structure 1 can be fixed on the surface of the test bench by passing bolts through the threaded mounting holes 6;

[0029] The cable clamp 2 includes a driving motor 7, a motor support rod 8, a clamp body 9, a limit pin 10, a cable jack 11 and a limit handle 12. The bottom end of the driving motor 7 is fixedly connected to the motor support rod 8. The output shaft of the driving motor 7 is fixedly connected to the rear end of the clamp body 9. A cable jack 11 is centrally opened on the surface of the clamp body 9. Through openings are opened at the top and bottom of the clamp body 9, and the limit handle 12 is rotatably connected inside the openings. Jacks are opened on the surface of the clamp body 9. There are two groups of the jacks and they are symmetrically arranged on the surface of the clamp body 9. A limit pin 10 is inserted into each group of the jacks;

[0030] The motor support rod 8 of the cable clamp 2 is slidably installed inside the second chute 5 of the adjustment structure 1, and the limit pin 10 of the cable clamp 2 is slidably installed inside the first chute 4 of the adjustment structure 1;

[0031] Before detection, the cable clamp 2 can be slid in the first chute 4 of the adjusting structure 1 by means of the limit pin 10 according to the length of the cable, driving the motor support rod 8 to rotate synchronously in the second chute 5. The motor support rod 8 plays a role in supporting and fixing the driving motor 7. After adjusting to the appropriate position, the limit pin 10 can be pulled outwards, the cable to be detected is inserted into the cable jack 11, and then the limit handle 12 is rotated to press and fix the cable. At this time, the driving motors 7 of the two groups of cable clamps 2 drive the corresponding clamp bodies 9 to start rotating. The driving forces of the two groups of driving motors 7 are opposite, and the two ends of the cable are respectively rotated and twisted to detect whether there are cracks or damages in the cable itself.

[0032] Those of ordinary skill in the art should understand that: the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0033] The present invention aims to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. Nuclear reactor cable bundle torsion test equipment, including an adjustment structure (1) and a cable clamp (2), characterized in that: A cable clamp (2) is slidably connected to the surface of the adjustment structure (1); A second chute (5) is provided on the surface of the adjustment structure (1), which functions to slidably adjust the cable clamp (2) within the adjustment structure (1); A limit handle (12) is rotatably connected inside the clamp body (9) of the cable clamp (2), which functions to limit and fix the cable within the cable clamp (2).

2. The torsional test equipment for nuclear reactor cable bundles according to claim 1, characterized in that: The adjustment structure (1) includes a fixing plate (3), a first chute (4), a second chute (5), and threaded mounting holes (6). The first chute (4) is provided on the surface of the fixing plate (3), and there are two groups of the first chute (4) symmetrically arranged on the surface of the fixing plate (3). The second chute (5) is provided on the surface of the fixing plate (3), and the second chute (5) is centrally arranged between the two groups of the first chute (4). The threaded mounting holes (6) are provided on the surface of the fixing plate (3), and there are four groups of the threaded mounting holes (6) symmetrically arranged at the four corners of the surface of the fixing plate (3).

3. The torsional test device for nuclear reactor cable bundles according to claim 1, characterized in that: The cable clamp (2) includes a driving motor (7), a motor support rod (8), a clamp body (9), a limit pin (10), a cable jack (11), and a limit handle (12). The bottom end of the driving motor (7) is fixedly connected to the motor support rod (8), the output shaft of the driving motor (7) is fixedly connected to the rear end of the clamp body (9), the cable jack (11) is centrally provided on the surface of the clamp body (9), openings are provided at the top and bottom of the clamp body (9), the limit handle (12) is rotatably connected inside the openings, two groups of jacks are provided on the surface of the clamp body (9) and are symmetrically arranged on the surface of the clamp body (9), and a limit pin (10) is inserted into each group of jacks.

4. The nuclear reactor cable bundle torsional test device according to claim 3, characterized in that: The motor support rod (8) of the cable clamp (2) is slidably installed inside the second chute (5) of the adjustment structure (1), and the limit pin (10) of the cable clamp (2) is slidably installed inside the first chute (4) of the adjustment structure (1).

Images