Tensile test device for power cable

Abstract

The invention discloses a tensile test device for a power cable, which comprises a base, a block body, a driving box body and a test mechanism, and is characterized in that the block body is fixedly connected with the base and the driving box body, the side surface of the driving box body is symmetrically provided with first through holes penetrating through the driving box body, and the side surface of the block body is provided with second through holes penetrating through the block body; the side face of the base is provided with a third through hole penetrating through the base, the testing mechanism comprises a rack and a winding roller, the rack is fixedly provided with a guide rod and a sliding connecting rod, the movable end of the guide rod penetrates through the first through hole, the sliding end of the sliding connecting rod penetrates through the second through hole, and the winding roller is provided with a plurality of fourth through holes. And the two ends of the power cable are wound and fixed on the winding rollers which are symmetrically arranged through the third through hole and the fourth through hole. According to the invention, the gears drive the two racks to move relative to each other, so that tensile testing of power cables of different specifications is realized, and the flexibility of the tensile testing device for the power cables is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cable testing, and in particular to a tensile testing device for power cables. Background Art

[0002] As an important part of the power system, the performance and quality of power cables are directly related to the safety of the power system. During the laying and installation of power cables, the cables need to withstand various tensile forces and pressures. Through tensile tests, high-strength cables that meet the standards can be screened out to effectively resist the impact of external factors and ensure that the cables are not easily broken or damaged during installation, thereby ensuring the safety of construction workers and the normal operation of the power system and reducing safety accidents caused by cable breakage.

[0003] Existing power cable tensile test devices are often designed for power cables of specific specifications. For cables of different specifications, it may be necessary to replace different test mechanisms or adjust test parameters, which not only increases the complexity of the test, but also may reduce the accuracy of the test.

[0004] It can be seen that how to improve the flexibility of the power cable tensile test device has become a technical problem that needs to be urgently solved by those skilled in the art. Summary of the invention

[0005] The invention provides a tensile test device for a power cable, so as to improve the flexibility of the tensile test device for the power cable.

[0006] In order to solve the above technical problems, an embodiment of the present invention provides a tensile test device for a power cable, comprising a base, a block, a driving box fixedly arranged above the base, and a test mechanism symmetrically arranged on both sides of the base; The block is fixedly connected to the base and the driving box, and the side of the driving box is symmetrically provided with a first through hole penetrating the driving box; the side of the block is provided with a second through hole penetrating the block; the side of the base is provided with a third through hole penetrating the base; The testing mechanism includes a frame and a winding roller rotatably connected to the frame; A guide rod and a sliding connecting rod are fixedly arranged on the frame, the movable end of the guide rod passes through the first through hole, and the sliding end of the sliding connecting rod passes through the second through hole; The winding rollers are symmetrically arranged, and each of the winding rollers is provided with a plurality of fourth through holes penetrating the winding rollers. Both ends of the power cable are wound and fixed on the winding rollers through the third through holes and the fourth through holes.

[0007] As one of the preferred solutions, the testing mechanism further includes a connecting shaft, one end of each of the connecting shafts is fixedly connected to one end of the winding roller, and the other end of each of the connecting shafts is rotatably connected to the frame.

[0008] As one preferred solution, the testing mechanism further includes a limit pin and a turntable arranged on a side of the frame; The turntable is provided with a fifth through hole penetrating the turntable, and the side of the frame is provided with a plurality of sixth through holes penetrating the side; The limiting pin passes through the fifth through hole and is inserted into the sixth through hole after the power cable is wound, so as to fix the winding roller.

[0009] As one of the preferred solutions, a control component is disposed on the driving housing, and a driving component electrically connected to the control component is disposed inside the driving housing; The driving assembly includes a driving motor, a gear and racks symmetrically arranged on both sides of the gear; The driving end of the driving motor is fixedly connected to the gear, the gear and the rack are meshed with each other, and the racks are fixedly connected to the guide rod.

[0010] As one of the preferred solutions, a heat dissipation component is also provided on the drive housing, and the heat dissipation component is a plurality of evenly distributed heat dissipation grooves.

[0011] As a preferred solution, the sixth perforations are distributed in a circular array.

[0012] As one of the preferred solutions, the guide rod has an L-shaped structure, and the frame has a U-shaped structure.

[0013] As a preferred solution, the fourth perforations are equidistantly distributed.

[0014] As one of the preferred solutions, a video recording device fixedly connected to the base is arranged inside the third through hole.

[0015] As one of the preferred solutions, the winding roller is provided with anti-slip textures.

[0016] Compared with the prior art, the embodiments of the present invention have the following advantages: (1) An embodiment of the present invention provides a tensile test device for a power cable, comprising a base, a block, a drive box fixedly arranged above the base, and a test mechanism symmetrically arranged on both sides of the base, wherein the block is fixedly connected to the base and the drive box, a first through hole penetrating the drive box is symmetrically arranged on a side surface of the drive box, a second through hole penetrating the block is arranged on a side surface of the block, and a third through hole penetrating the base is arranged on a side surface of the base; (2) The test mechanism includes a connecting shaft, a frame and a winding roller rotatably connected to the frame, one end of each connecting shaft is fixedly connected to one end of the winding roller, and the other end of each connecting shaft is rotatably connected to the frame. A guide rod and a sliding link are fixedly arranged on the frame, the movable end of the guide rod passes through the first through hole, the sliding end of the sliding link passes through the second through hole, and a plurality of fourth through holes passing through the winding roller are arranged on the winding roller. Both ends of the power cable are wound and fixed on the symmetrically arranged winding rollers through the third through hole and the fourth through hole. A control component is arranged on the driving box, and a driving component electrically connected to the control component is arranged inside the driving box. The driving component includes a driving motor, a gear and a rack symmetrically arranged on both sides of the gear. The driving end of the driving motor is fixedly connected to the gear, the gear and the rack are meshed with each other, and the racks are fixedly connected to the guide rod. The distance between the two winding rollers is adjusted by driving the gear to rotate by the driving motor, and then the two winding rollers are driven by the gear to move away from each other, so that the cable is stretched with the movement of the winding roller, thereby realizing the tensile test of the power cable; (3) The testing mechanism also includes a limit pin and a turntable arranged on the side of the frame, the turntable is provided with a fifth through hole penetrating the turntable, and the side of the frame is provided with a plurality of sixth through holes penetrating the side, the limit pin penetrates the fifth through hole, and is inserted into the sixth through hole after the power cable is wound, so as to fix the winding roller. When testing power cables of different lengths, there is no need to cut the cables, which reduces the workload of the staff and improves the flexibility of the power cable tensile test device; (4) The winding roller is provided with a plurality of fourth perforations, which can simultaneously perform tensile tests on power cables of different specifications, effectively improving the test efficiency of the power cable tensile test device and further improving the flexibility of the power cable tensile test device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a power cable tensile test device in one embodiment of the present invention; Figure 2 A schematic diagram of each through hole in one embodiment of the present invention; Figure 3 A connection diagram of a testing mechanism in one embodiment of the present invention; Figure 4A schematic diagram of the internal structure of a driving box in one embodiment of the present invention; Figure 5 It is a schematic diagram of the external structure of a driving box in one embodiment of the present invention.

[0018] Reference numerals: Among them, 1. base, 2. block, 3. testing mechanism, 301. connecting shaft, 302. frame, 303. winding roller, 304. limit pin, 305. turntable, 4. driving box, 401. control component, 4021. driving motor, 4022. gear, 4023. rack, 403. heat dissipation component, 501. first perforation, 502. second perforation, 503. third perforation, 504. fourth perforation, 505. fifth perforation, 506. sixth perforation, 6. guide rod, 7. sliding connecting rod, 8. power cable. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of this application, the terms "first", "second", "third", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of the feature. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0021] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. The terms "vertical", "horizontal", "left", "right", "upper", "lower" and similar expressions used herein are only for illustrative purposes, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0022] In the description of this application, it should be noted that, unless otherwise defined, all technical and scientific terms used in the present invention have the same meaning as those commonly understood by those skilled in the art. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0023] An embodiment of the present invention provides a tensile testing device for a power cable. In this embodiment, a tensile testing device for a power cable includes a base, a block, and a driving box fixedly arranged above the base, and a testing mechanism symmetrically arranged on both sides of the base. The block is fixedly connected to the base and the driving box, and the side of the driving box is symmetrically provided with a first through hole penetrating the driving box, the side of the block is provided with a second through hole penetrating the block, and the side of the base is provided with a third through hole penetrating the base.

[0024] For details, see Figure 1 , Figure 1 The figure shows the overall structure of a power cable tensile test device in one embodiment of the present invention. Figure 1 In the figure, 1 is a base, 2 is a block, 3 is a test mechanism, and 4 is a drive box.

[0025] Furthermore, the testing mechanism includes a connecting shaft, a frame and a winding roller rotatably connected to the frame, one end of each connecting shaft is fixedly connected to one end of the winding roller, and the other end of each connecting shaft is rotatably connected to the frame, and a guide rod and a sliding connecting rod are fixedly arranged on the frame, the movable end of the guide rod passes through the first through-hole, the sliding end of the sliding connecting rod passes through the second through-hole, and the winding roller is provided with a plurality of fourth through-holes passing through the winding roller, and both ends of the power cable are wound and fixed on the symmetrically arranged winding roller through the third through-hole and the fourth through-hole.

[0026] It should be noted that by arranging multiple fourth perforations on the reel, it is possible to fix multiple power cables between the two reeling rollers, so that not only a single cable can be tested, but also a line group consisting of multiple cables can be tested, which enriches the testing function of the device and improves the flexibility of the power cable tensile test device.

[0027] The testing mechanism also includes a limit pin and a turntable arranged on the side of the frame, the turntable is provided with a fifth through hole penetrating the turntable, the side of the frame is provided with a plurality of sixth through holes penetrating the side, the limit pin penetrates the fifth through hole, and is inserted into the sixth through hole after the power cable is wound, so as to fix the winding roller.

[0028] It should be noted that the working principle of fixing the winding roller after the power cable is wound is as follows: the power cable is fixed on the winding roller by passing the end of the power cable through the fourth through-hole on the winding roller and then tying one end of the power cable to the winding roller. The turntable drives the connecting shaft and the winding roller to rotate according to the length of the power cable, so that the power cable between the two winding rollers is in a straight state, and then a limit pin is passed through the fifth through-hole and inserted into the sixth through-hole to keep the winding roller in a fixed state.

[0029] As an embodiment of the present application, the fourth perforations are distributed equidistantly, the sixth perforations are distributed in a circular array, the structure of the guide rod is an L-shaped structure, and the structure of the frame is a U-shaped structure.

[0030] For details, see Figure 2 , Figure 2 Shown is a schematic diagram of various through holes in one embodiment of the present invention. Figure 2 In the figure, 501 is the first perforation, 502 is the second perforation, 503 is the third perforation, 504 is the fourth perforation, 505 is the fifth perforation, and 506 is the sixth perforation.

[0031] For details, see Figure 3 , Figure 3 Shown is a connection diagram of a testing mechanism in one embodiment of the present invention. Figure 3 In the figure, 301 is a connecting shaft, 302 is a frame, 303 is a winding roller, 304 is a limit pin, 305 is a turntable, 6 is a guide rod, 7 is a sliding connecting rod, and 8 is a power cable.

[0032] A driving assembly electrically connected to the control assembly is arranged inside the driving box, and the driving assembly includes a driving motor, a gear and racks symmetrically arranged on both sides of the gear. The driving end of the driving motor is fixedly connected to the gear, the gear and the rack are meshed with each other, and the racks are fixedly connected to the guide rod.

[0033] For details, see Figure 4 , Figure 4 Shown is a schematic diagram of the internal structure of a driving box in one embodiment of the present invention. Figure 4 In the figure, 4021 is a driving motor, 4022 is a gear, and 4023 is a rack.

[0034] It should be noted that the principle of the tensile test on the power cable is as follows: by fixing the two ends of the test power cable on the winding rollers on both sides, the gears are driven by the driving motor to rotate, and the gears drive the two racks to rotate, thereby driving the two sliding links to move towards each other, thereby driving the frames to move closer to each other or away from each other, thereby adjusting the distance between the two winding rollers. When the cable length changes, the distance between the two winding rollers is adjusted according to the cable length, so that cables of different lengths can be placed in the device, and then the two winding rollers are driven by gears to move away from each other, so that the cables are stretched as the winding rollers move, thereby achieving the tensile test of the cables.

[0035] As another embodiment of the present application, a control component and a heat dissipation component are also provided on the driving box, a video recording device fixedly connected to the base is provided inside the third perforation, and an anti-slip texture is provided on the winding roller.

[0036] It should be noted that, in this embodiment, the drive motor is electrically connected to the control component and the control component can control the operation of the drive motor. A number of evenly distributed heat dissipation slots are provided on both sides of the drive housing. The operation of the drive motor is controlled by operating the control component outside the drive housing, thereby facilitating the operation of the drive motor. The heat dissipation slots are provided outside the drive housing to dissipate heat for the drive motor. The video recording device is mounted on the base, the cable passes through the third through hole and is connected to the reel rollers on both sides, and the test status of the cable is recorded by the video recording device.

[0037] For details, see Figure 5 , Figure 5 The figure shows a schematic diagram of the external structure of a driving box in one embodiment of the present invention. Figure 5 In the figure, 401 is a control component and 403 is a heat dissipation component.

[0038] Those skilled in the art can understand that all or part of the processes in the above embodiments can be implemented by instructing related hardware through a computer program, and the program can be stored in a computer-readable storage medium, and when the program is executed, it can include the processes of the embodiments of the above methods. The storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

[0039] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A tensile test device for power cables, characterized in that: It includes a base, a block, a driving box fixedly arranged above the base, and a testing mechanism symmetrically arranged on both sides of the base; The block is fixedly connected to the base and the driving box, and the side of the driving box is symmetrically provided with a first through hole penetrating the driving box; the side of the block is provided with a second through hole penetrating the block; the side of the base is provided with a third through hole penetrating the base; The testing mechanism includes a frame and a winding roller rotatably connected to the frame; A guide rod and a sliding connecting rod are fixedly arranged on the frame, the movable end of the guide rod passes through the first through hole, and the sliding end of the sliding connecting rod passes through the second through hole; The winding rollers are symmetrically arranged, and each of the winding rollers is provided with a plurality of fourth through holes penetrating the winding rollers. Both ends of the power cable are wound and fixed on the winding rollers through the third through holes and the fourth through holes.

2. A tensile testing device for power cables according to claim 1, characterized in that: The testing mechanism also includes a connecting shaft, one end of each connecting shaft is fixedly connected to one end of the winding roller, and the other end of each connecting shaft is rotatably connected to the frame.

3. A tensile testing device for power cables according to claim 1, characterized in that: The testing mechanism also includes a limit pin and a turntable arranged on the side of the frame; The turntable is provided with a fifth through hole penetrating the turntable, and the side of the frame is provided with a plurality of sixth through holes penetrating the side; The limiting pin passes through the fifth through hole and is inserted into the sixth through hole after the power cable is wound, so as to fix the winding roller.

4. A tensile testing device for power cables according to claim 1, characterized in that: The driving box is provided with a control component, and the driving box is provided with a driving component electrically connected to the control component; The driving assembly includes a driving motor, a gear and racks symmetrically arranged on both sides of the gear; The driving end of the driving motor is fixedly connected to the gear, the gear and the rack are meshed with each other, and the racks are fixedly connected to the guide rod.

5. A tensile testing device for power cables according to claim 4, characterized in that: The drive housing is also provided with a heat dissipation component, which is a plurality of evenly distributed heat dissipation slots.

6. A tensile testing device for power cables according to claim 3, characterized in that: The sixth through holes are distributed in a circular array.

7. A tensile testing device for power cables according to claim 1, characterized in that: The guide rod has an L-shaped structure, and the frame has a U-shaped structure.

8. A tensile testing device for power cables according to claim 1, characterized in that: The fourth perforations are distributed equidistantly.

9. A tensile testing device for power cables according to claim 1, characterized in that: A video recording device fixedly connected to the base is arranged inside the third through hole.

10. A tensile testing device for power cables according to claim 1, characterized in that: The winding roller is provided with anti-skid patterns.

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