Cable tension testing device

Abstract

The utility model relates to the technical field of cable tension testing, and discloses a cable tension testing device which comprises a testing frame. A test cavity is formed in the test frame, a clamping seat is mounted at the bottom in the test cavity, and a limiting piece located in the test cavity and arranged above the clamping seat and an air cylinder used for driving the limiting piece to move up and down are mounted on the test frame; an opening communicated with the testing cavity is formed in the side face of the testing frame, a rack hook piece which penetrates through the opening in a sliding mode and stretches into the testing cavity is arranged on the side face of the testing frame, the rack hook piece is used for transversely stretching a cable, and an elastic piece connected with the rack hook piece is installed on the side face of the testing frame. The utility model provides a cable tension testing device, and solves the problem that in the actual situation, a cable may be affected by stretching and bending at the same time, and the traditional test neglects the composite loading condition, so that the test data is easy to be inaccurate.

Description

Technical Field

[0001] The utility model relates to the technical field of cable tension testing, in particular to a cable tension testing device. Background Art

[0002] Cables are important carriers for power transmission, signal transmission, and data communication, and are widely used in power, communications, transportation, and construction. After production, cables need to be tensile tested to ensure their reliability and safety during long-term use. Tensile testing is an important means of evaluating the mechanical properties of cables. It simulates the tensile forces that cables may encounter in actual applications to detect the key performance indicators of cables, such as tensile strength and elongation at break. These indicators are directly related to whether the cables can work properly under specific conditions and avoid safety accidents such as breakage and falling off.

[0003] Traditional tensile testing often only considers the performance of the cable under linear tension, but does not consider the mechanical behavior under bending. In actual situations, the cable may be affected by tension and bending at the same time. Traditional testing ignores this composite loading condition, which can easily lead to inaccurate test data.

[0004] In order to solve the above problems, this application proposes a cable tension testing device. Utility Model Content

[0005] Based on the technical problems existing in the background technology, the utility model proposes a cable tension testing device.

[0006] The utility model provides a cable tension testing device, comprising a testing frame;

[0007] A test chamber is provided in the test frame, and a clamping seat is installed at the bottom of the test chamber. A limiter located in the test chamber and above the clamping seat and a cylinder for driving the limiter to move up and down are installed on the test frame;

[0008] An opening communicating with the test chamber is provided on the side of the test frame. A rack hook is provided on the side of the test frame that slides through the opening and extends into the test chamber, and the rack hook is used to laterally stretch the cable. An elastic member connected to the rack hook is installed on the side of the test frame, and a gear member meshing with the rack hook is rotatably installed in the opening. The limit member and the gear member are connected by a pull rope.

[0009] Preferably, the limit member includes a limit block, which is arranged in the test chamber and located above the clamping seat, and the cylinder is installed on the top of the test frame. The limit block is connected to the cylinder and is driven by the cylinder to move closer to or away from the clamping seat. A limit hole is provided at the bottom of the limit block, and the side of the limit block is threadedly connected to a first bolt extending into the limit hole. A sliding port connected to the test chamber is provided on the back of the test frame, and a slider passing through the sliding port and slidably connected to the first bolt is installed on the side of the limit block away from the first bolt.

[0010] Preferably, the rack hook comprises a rack body, which slides through an opening on a side of the test frame and extends into the test chamber, and a draw hook located in the test chamber is installed at an end of the rack body.

[0011] Preferably, the elastic member includes a connecting rod and a spring, the connecting rod is installed laterally on the side of the test frame and is located below the rack body, the other end of the rack body is installed with a fixed block that is slidably sleeved on the connecting rod, the spring is sleeved on the connecting rod and is located between the test frame and the fixed block, and the two ends of the spring are respectively connected to the side of the test frame and the fixed block.

[0012] Preferably, the gear member includes a rotating rod, which is laterally arranged in the opening and located above the rack body, one end of the rotating rod is rotatably connected to the inner wall of one side of the opening, and the other end of the rotating rod rotates through the back of the test frame and is installed with a wire wheel, and the rotating rod is fixedly sleeved with a gear body located in the opening and meshing with the rack body, and the back of the test frame is installed with a guide wheel located above the wire wheel, the pull rope is wound around the wire wheel, and one end of the pull rope is connected to the outer periphery of the wire wheel, and the end of the pull rope away from the wire wheel passes around the guide wheel and is connected to the end of the slider away from the limit block.

[0013] Preferably, a clamping hole is provided on the top of the clamping seat, and a second bolt extending into the clamping hole is threadedly connected to the side surface of the clamping seat.

[0014] The above technical solution of the utility model has the following beneficial technical effects:

[0015] By means of the rack hook, elastic part, gear part and pull rope, the two ends of the cable can be fixed on the clamping seat and the limit part respectively, and then the limit part can be driven upward by the cylinder to stretch the cable. During the upward movement of the limit part, the gear part can be pulled to rotate by the pull rope. When the gear part rotates, it pushes the rack hook to move outward and stretches the elastic part. When the rack hook moves outward, it hooks the cable and applies a lateral tension to it, causing the cable to bend. When the cable is stretched longitudinally, it can also apply a lateral tension to it. After the cable test is completed, the limit part can be driven back to its original position by the cylinder. Under the elastic action of the elastic part, the rack hook can drive the gear part to rotate and store the pull rope for the next test. This structure can apply longitudinal tension to the cable while applying lateral tension to it to make it bend, which makes up for the limitation of traditional tensile testing that only focuses on the linear tensile state, and truly simulates the complex stress environment that the cable may encounter in actual application, thereby improving the accuracy and reliability of the test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention provides a structural diagram of a cable tension testing device.

[0017] Figure 2 For this utility model Figure 1 Schematic diagram of the local structure in.

[0018] Figure numerals: 1. test frame; 2. clamping seat; 3. limit member; 31. limit block; 32. first bolt; 33. slider; 4. cylinder; 5. rack hook member; 51. rack body; 52. pull hook; 6. elastic member; 61. connecting rod; 62. spring; 7. gear member; 71. rotating rod; 72. gear body; 73. reel; 8. pull rope; 9. guide wheel; 10. fixing block; 11. second bolt. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0020] like Figure 1 and Figure 2 As shown, the present invention provides a cable tension testing device, comprising a testing frame 1;

[0021] In this embodiment, a test chamber is provided in the test frame 1, and a clamping seat 2 is installed at the bottom of the test chamber. A limit member 3 located in the test chamber and above the clamping seat 2 and a cylinder 4 for driving the limit member 3 to move up and down are installed on the test frame 1. The limit member 3 includes a limit block 31, which is provided in the test chamber and above the clamping seat 2. The cylinder 4 is installed on the top of the test frame 1. The limit block 31 is connected to the cylinder 4 and is driven by the cylinder 4 to move closer to or away from the clamping seat 2. A limit hole is provided at the bottom of the limit block 31, and a first bolt 32 extending into the limit hole is threadedly connected to the side of the limit block 31. A sliding port connected to the test chamber is provided on the back of the test frame 1, and a slider 33 passing through the sliding port and slidably connected to the first bolt 32 is installed on the side of the limit block 31 away from the first bolt 32.

[0022] In this embodiment, the side of the test frame 1 has an opening that communicates with the test chamber. A rack hook 5 is provided on the side of the test frame 1, which slides through the opening and extends into the test chamber. Rack hook 5 is used to horizontally stretch the cable. Rack hook 5 includes a rack body 51, which slides through the opening in the side of the test frame 1 and extends into the test chamber. A retractor 52, located within the test chamber, is mounted on the end of rack body 51.

[0023] In this embodiment, an elastic member 6 connected to the rack hook member 5 is mounted on the side of the test frame 1. The elastic member 6 includes a connecting rod 61 and a spring 62. The connecting rod 61 is mounted laterally on the side of the test frame 1 and is located below the rack body 51. The other end of the rack body 51 is mounted with a fixed block 10 that is slidably mounted on the connecting rod 61. The spring 62 is mounted on the connecting rod 61 and is located between the test frame 1 and the fixed block 10. The two ends of the spring 62 are respectively connected to the side of the test frame 1 and the fixed block 10.

[0024] In this embodiment, a gear member 7 meshing with the rack hook member 5 is rotatably installed in the opening, and the limit member 3 and the gear member 7 are connected by a pulley 8. The gear member 7 includes a rotating rod 71, which is horizontally arranged in the opening and located above the rack body 51. One end of the rotating rod 71 is rotatably connected to the inner wall of one side of the opening, and the other end of the rotating rod 71 rotates through the back of the test frame 1 and is installed with a wire pulley 73. A gear body 72 located in the opening and meshing with the rack body 51 is fixedly mounted on the rotating rod 71. A guide wheel 9 located above the wire pulley 73 is installed on the back of the test frame 1. The pulley 8 is wound around the wire pulley 73, and one end of the pulley 8 is connected to the outer periphery of the wire pulley 73. The end of the pulley 8 away from the wire pulley 73 passes around the guide wheel 9 and is connected to the end of the slider 33 away from the limit block 31.

[0025] In a specific embodiment, a clamping hole is formed on the top of the clamping seat 2 , and a second bolt 11 is threadedly connected to the side surface of the clamping seat 2 and extends into the clamping hole.

[0026] It should be noted that: the two ends of the cable can be respectively inserted into the clamping hole opened at the top of the clamping seat 2 and the limiting hole at the bottom of the limiting block 31, and then the top of the cable can be fixed by the first bolt 32 on the limiting block 31, and the bottom of the cable can be fixed by the second bolt 11 on the clamping seat 2. Then, the limiting block 31 can be driven by the cylinder 4 to move upward to stretch the cable. In the process of the limiting block 31 moving upward, the slider 33 on the limiting block 31 can be used to pull the pulley 8 out of the reel 73. In the process of pulling out, the pulley 73, the rotating rod 71 and the gear body 72 can be driven to rotate simultaneously. When the gear body 72 rotates, it pushes the rack body 51 to move outward. In the process of the rack body 51 moving outward, the hook 52 can be used to hook the cable and apply lateral tension to the cable, so that the cable is bent, so as to achieve longitudinal stretching of the cable. It can apply lateral tension to it. During the outward movement of the rack body 51, the fixed block 10 at the end of the rack body 51 can slide on the connecting rod 61 and stretch the spring 62. After the cable test is completed, the limit block 31 can be driven by the cylinder 4 to return to its original position. Under the elastic action of the spring 62, the fixed block 10 can be moved on the connecting rod 61 and drive the rack body 51 to return to its original position. The gear body 72 can be pushed by the rack body 51 to drive the rotating rod 71 and the pulley 73 to rotate. When the pulley 73 rotates, the pull rope 8 can be wound and stored for the next test. This structure can apply longitudinal tension to the cable while applying lateral tension to it to make it bend, which makes up for the limitation of traditional tension testing that only focuses on the linear tension state, and truly simulates the complex force environment that the cable may encounter in actual application, thereby improving the accuracy and reliability of the test data.

[0027] It should be understood that the above-described specific embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.

Claims

1. A cable tension test device, comprising a test frame (1), characterized in that: A test chamber is provided in the test frame (1), and a clamping seat (2) is installed at the bottom of the test chamber. A limiting member (3) located in the test chamber and above the clamping seat (2) and a cylinder (4) for driving the limiting member (3) to move up and down are installed on the test frame (1); The side of the test frame (1) is provided with an opening communicating with the test chamber, the side of the test frame (1) is provided with a rack hook (5) that slides through the opening and extends into the test chamber, and the rack hook (5) is used to stretch the cable laterally, the side of the test frame (1) is provided with an elastic member (6) connected to the rack hook (5), a gear member (7) meshing with the rack hook (5) is rotatably installed in the opening, and the limit member (3) and the gear member (7) are connected by a drawstring (8).

2. A cable tension testing device according to claim 1, characterized in that: The limiting member (3) includes a limiting block (31), the limiting block (31) is arranged in the test chamber and located above the clamping seat (2), the cylinder (4) is installed on the top of the test frame (1), the limiting block (31) is connected to the cylinder (4) and is driven by the cylinder (4) to move closer to or away from the clamping seat (2), a limiting hole is provided at the bottom of the limiting block (31), a first bolt (32) is threadedly connected to the side of the limiting block (31) and extends into the limiting hole, a sliding port connected to the test chamber is provided on the back of the test frame (1), and a sliding block (33) is installed on the side of the limiting block (31) away from the first bolt (32) and passes through the sliding port and is slidably connected to the sliding port.

3. A cable tension testing device according to claim 2, characterized in that: The rack hook (5) comprises a rack body (51), which slides through an opening on the side of the test frame (1) and extends into the test chamber, and a draw hook (52) located in the test chamber is installed at the end of the rack body (51).

4. A cable tension testing device according to claim 3, characterized in that: The elastic member (6) includes a connecting rod (61) and a spring (62). The connecting rod (61) is installed transversely on the side of the test frame (1) and is located below the rack body (51). The other end of the rack body (51) is installed with a fixed block (10) that is slidably sleeved on the connecting rod (61). The spring (62) is sleeved on the connecting rod (61) and is located between the test frame (1) and the fixed block (10), and the two ends of the spring (62) are respectively connected to the side of the test frame (1) and the fixed block (10).

5. A cable tension testing device according to claim 4, characterized in that: The gear member (7) includes a rotating rod (71), which is laterally arranged in the opening and located above the rack body (51), one end of the rotating rod (71) is rotatably connected to the inner wall of one side of the opening, and the other end of the rotating rod (71) rotates through the back of the test frame (1) and is installed with a wire wheel (73), and a gear body (72) located in the opening and meshing with the rack body (51) is fixedly sleeved on the rotating rod (71), and a guide wheel (9) located above the wire wheel (73) is installed on the back of the test frame (1), and the pull rope (8) is wound around the wire wheel (73), and one end of the pull rope (8) is connected to the outer periphery of the wire wheel (73), and the end of the pull rope (8) away from the wire wheel (73) passes around the guide wheel (9) and is connected to the end of the slider (33) away from the limit block (31).

6. A cable tension testing device according to claim 1, characterized in that: A clamping hole is provided on the top of the clamping seat (2), and a second bolt (11) is threadedly connected to the side of the clamping seat (2) and extends into the clamping hole.

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