Tension testing device for YJV cable

Abstract

The utility model discloses a tension testing device for a YJV cable, and the device comprises a main body unit which comprises a pedestal, one side of the pedestal is fixedly connected with a motor, the output end of the motor is fixedly connected with a bidirectional threaded rod, and the bidirectional threaded rod is rotatably connected with the pedestal. One end of a cable is placed between the first clamping plate and the second clamping plate, the threaded lead screw is manually rotated, and the second clamping plate in threaded connection with the threaded lead screw moves downwards under the limiting effect of the limiting rod, so that the two sets of worm wheels at the top and the bottom and the limiting round block make contact with the cable and are clamped, and then the cable is clamped according to the position of the clamped cable. The worm gear is manually rotated to drive the worm to rotate and drive the worm gear meshed with the worm to rotate, and then the limiting round block fixedly connected with the worm gear is driven to rotate, and the worm gear and the worm at the bottom are matched, so that the clamped position of the clamped cable can be moved, the clamping position of the cable can be adjusted while the second clamping plate is prevented from moving upwards, the adjusting time is shortened, and the testing efficiency is improved.

Description

Technical Field

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

[0002] YJV cable is a low-voltage power cable, consisting of a copper conductor, a polyvinyl chloride insulation layer, and a polyvinyl chloride sheath layer. It has the characteristics of good insulation performance, strong resistance to charge migration, and good resistance to chemical corrosion. It is widely used in power, construction, communications and other fields. During the production or acceptance process of YJV cables, professional equipment is required to perform tensile testing to evaluate the cable's ability to withstand external forces under specified conditions.

[0003] The existing patent number CN218865666U discloses a cable tension testing device for cable processing, in which a hood is installed on the top of the base, a slide groove is provided on the top of the base, an adjusting screw is installed inside the slide groove, threaded sleeves are threaded on both sides of the adjusting screw, the tops of the threaded sleeves on both sides are fixedly connected with fixing seats, fixing parts are installed on the tops of the fixing seats on both sides, the cable body is fixed inside the fixing parts on both sides, a plurality of electric heating tubes are installed on the top of the hood, and condensing tubes are installed on the front and back sides of the top of the base. When the cable tension testing device for cable processing provided by the utility model is used, the overall tension is maintained on one axis, and the test accuracy is more precise.

[0004] The prior art clamps and fixes the two ends of the cable by means of fixing parts. After the cable is fixed, the cable may not be fixed in place and needs to be clamped again. At this time, the fixing parts need to be released and clamped again, which affects the test process. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In view of the problems existing in the above-mentioned existing tensile testing device for YJV cables, the present utility model is proposed.

[0007] Therefore, the purpose of the utility model is to provide a tensile testing device for YJV cables, which is designed to solve the problem that "the prior art clamps and fixes the two ends of the cable separately by fixing parts, but after the cable is fixed, the cable needs to be re-clamped because it is not fixed in place. At this time, the fixing parts need to be released and the clamping operation needs to be performed again, affecting the test process."

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0009] A tension test device for a YJV cable, comprising:

[0010] The main unit comprises a base, one side of the base is fixedly connected to a motor, and the output end of the motor is fixedly connected to a bidirectional threaded rod, the bidirectional threaded rod is rotatably connected to the base, both ends of the bidirectional threaded rod are threadedly connected to a moving block, and the two sides of the moving block are respectively slidably connected to the inner wall of the base, and a control panel is installed on the other side of the base;

[0011] The fixing unit comprises two groups of clamping plates 1 fixedly connected to the upper sides of the two groups of moving blocks, and one side of the clamping plate 1 is rotatably connected to a threaded screw, the surfaces of the two groups of threaded screws are threadedly connected to clamping plates 2, and the other sides of the clamping plates 2 are slidably connected to limit rods, the two groups of limit rods are fixedly connected to clamping plates 1, the sides of the two groups of clamping plates 1 and 2 that are close to each other are provided with rotating grooves, and adjustment components are arranged in the rotating grooves, the upper sides of the two groups of moving blocks are provided with two groups of sliding grooves, and the inner wall surfaces of the sliding grooves are slidably connected to protective shells, and one side of the two groups of protective shells is provided with positioning components.

[0012] As a preferred solution of the YJV cable tension testing device described in the utility model, each group of the adjustment components includes a worm gear arranged inside the rotating groove, and both sides of the worm gear are fixedly connected to limiting circular blocks, the two groups of limiting circular blocks are fixedly connected to the opposite sides with a rotating shaft, and the rotating shaft is rotatably connected to the inner wall of the rotating groove, the upper sides of the two groups of top worm wheels are meshed with worms, and the worms are rotatably connected to the two splints, and one end of the two groups of worms is fixedly connected to a handle.

[0013] As a preferred solution of the YJV cable tension testing device described in the utility model, each group of the limiting round blocks is of conical design, the end closer to the limiting round blocks of each group is the end with a smaller inner diameter, and the surface of each group of the limiting round blocks is fixedly connected with a plurality of anti-slip particles, and the anti-slip particles are made of rubber.

[0014] As a preferred solution of the tensile testing device for YJV cables described in the utility model, wherein: the two groups of positioning components both include a fixed plate fixedly connected to the upper side of the base, and the interior of the fixed plate is slidably connected with a sliding rod, the two groups of sliding rods are fixedly connected to a fixed seat on the side of the protective shell, and a ball bearing is provided on one side of the fixed seat, the two groups of ball bearings are movably connected to the protective shell, the surfaces of the two groups of sliding rods are both sleeved with springs, and the two ends of the springs are respectively fixedly connected to the fixed plate and the fixed seat.

[0015] As a preferred solution of the tensile testing device for YJV cables described in the utility model, the two groups of protective shells are provided with positioning grooves matching with the ball on one side of the positioning assembly, and the positioning grooves are arranged on the side of the protective shells close to one end:.

[0016] As a preferred solution of the YJV cable tension testing device described in the utility model, the two groups of protective shells are designed to be horizontally symmetrical, and the two groups of protective shells are both made of transparent plates.

[0017] Beneficial effects of the utility model:

[0018] 1. Place one end of the cable between clamping plate 1 and clamping plate 2, and manually rotate the threaded screw. Under the limiting action of the limiting rod, clamping plate 2 threadedly connected to the threaded screw moves downward, so that the top and bottom two sets of worm gears and limiting round blocks contact and clamp the cable. Then, according to the position of the clamped cable, manually rotate the worm gear to drive the worm to rotate, and drive the worm gear meshing with the worm to rotate, and then drive the limiting round block fixedly connected to the worm gear to rotate, and cooperate with the worm gear and worm at the bottom to enable the clamped cable to move in the clamping position, avoiding moving clamping plate 2 upward and adjusting the clamping position of the cable, reducing adjustment time and improving test efficiency.

[0019] 2. The spring is used to abut the ball against the protective shell, which can increase the sliding friction between the protective shell and the clamping plate, so that the protective shell can only slide by manual pushing, and the sliding protective shell makes the positioning groove and the ball engage, which can effectively fix the position of the protective shell and prevent the protective shell from opening and slipping off the surface of the clamping plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0021] Figure 1 This is a three-dimensional structural schematic diagram of a YJV cable tension test device proposed by the utility model;

[0022] Figure 2 for Figure 1 A schematic cross-sectional view of the three-dimensional structure;

[0023] Figure 3 is a schematic diagram of the three-dimensional structure of the fixed unit;

[0024] Figure 4 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the positioning component.

[0026] In the figure: 100, main unit; 101, base; 102, control panel; 103, motor; 104, bidirectional threaded rod; 105, moving block; 106, slide groove; 200, fixed unit; 201, clamping plate one; 202, threaded screw; 203, clamping plate two; 204, limiting rod; 205, rotating groove; 206, adjusting component; 206a, worm gear; 206b, limiting round block; 206c, worm; 206d, handle; 207, protective shell; 208, positioning groove; 209, positioning component; 209a, fixing plate; 209b, slide rod; 209c, fixing seat; 209d, spring. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0030] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0031] Reference Figure 1-5 The utility model provides a tension test device for a YJV cable, comprising:

[0032] The main unit 100 includes a base 101, one side of the base 101 is fixedly connected to a motor 103, and the output end shaft of the motor 103 is fixedly connected to a bidirectional threaded rod 104, the bidirectional threaded rod 104 is rotatably connected to the base 101 through a bearing, both ends of the bidirectional threaded rod 104 are rotatably connected to a moving block 105 through a thread, and the two sides of the moving block 105 are respectively slidably connected to the inner wall of the base 101 to play a role of limiting, and a control panel 102 is installed on the other side of the base 101. The control panel 102 is a prior art, and a display screen and an operation keyboard are arranged on the surface of the control panel 102;

[0033] The fixing unit 200 includes two groups of clamping plates 201 fixedly connected to the upper sides of the two groups of moving blocks 105, and one side of the clamping plate 201 is rotatably connected to a threaded screw 202 through a bearing, the surfaces of the two groups of threaded screws 202 are rotatably connected to clamping plates 203 through threads, and the other sides of clamping plates 203 are slidably connected to limit rods 204, and the two groups of limit rods 204 are fixedly connected to the clamping plate 201, and the sides of the two groups of clamping plates 1 201 and 203 that are close to each other are provided with rotating grooves 205, and adjusting components 206 are arranged in the rotating grooves 205, and two groups of sliding grooves 106 are arranged on the upper sides of the two groups of moving blocks 105, and the inner wall surfaces of the sliding grooves 106 are slidably connected to protective shells 207, and one side of the two groups of protective shells 207 is provided with positioning components 209.

[0034] Among them, each group of adjustment components 206 includes a worm wheel 206a arranged inside the rotating groove 205, and both sides of the worm wheel 206a are fixedly connected to the limiting circular blocks 206b, the opposite sides of the two groups of limiting circular blocks 206b are fixedly connected with a rotating shaft, and the rotating shaft is rotatably connected to the inner wall of the rotating groove 205 through a bearing, the upper sides of the two groups of top worm wheels 206a are meshed with worms 206c, and the worm 206c is rotatably connected to the second clamping plate 203 through a rotating shaft, and one end of the two groups of worms 206c is fixedly connected with a handle 206d, and manually rotating the handle 206d can make the worm 206c drive the worm wheel 206a to rotate, and then drive the limiting circular block 206b to rotate, so as to adjust the clamping position of the clamped cable, thereby improving practicality.

[0035] Furthermore, each set of limiting circular blocks 206b is of conical design, and the end closer to each set of limiting circular blocks 206b is the end with a smaller inner diameter. The surface of each set of limiting circular blocks 206b is fixedly connected with a plurality of anti-slip particles, and the anti-slip particles are made of rubber, so that the clamped cable will not deviate to the sides, and the clamping friction is increased to prevent the cable from slipping out during testing.

[0036] Furthermore, the two groups of positioning components 209 both include a fixed plate 209a fixedly connected to the upper side of the base 101, and the fixed plate 209a is internally slidably connected to a slide rod 209b, the two groups of slide rods 209b are fixedly connected to a fixed seat 209c on the side close to the protective shell 207, and a ball is provided on one side of the fixed seat 209c, and the two groups of balls are movably connected to the protective shell 207, the surfaces of the two groups of slide rods 209b are both sleeved with a spring 209d, and the two ends of the spring 209d are respectively fixedly connected to the fixed plate 209a and the fixed seat 209c, under the elastic force of the spring 209d, the fixed seat 209c drives the ball to contact the surface of the protective shell 207, and pushing the protective shell 207 to slide can make the ball roll on the surface of the protective shell 207.

[0037] Furthermore, the two sets of protective shells 207 are provided with positioning grooves 208 cooperating with the ball on one side of the positioning assembly 209, and the positioning grooves 208 are all arranged on the side of the protective shells 207 close to one end. When the protective shells 207 are slid outward, the balls will slide into the positioning grooves 208 and engage, causing the protective shells 207 to stop sliding, thereby positioning and fixing the protective shells 207.

[0038] Furthermore, the two sets of protective shells 207 are designed to be horizontally symmetrical, and both sets of protective shells 207 are made of transparent plates, which makes it easy for staff to observe the status of the cables during the test and understand the work progress.

[0039] During use, the ball bearings 207 are brought into contact with the protective shell 207 by the elastic force of the spring 209d, which can increase the sliding friction between the protective shell 207 and the clamping plate 201. By manually pushing the protective shell 207 to slide to both sides, the sliding protective shell 207 makes the positioning groove 208 engage with the ball bearings, which can fix the position of the protective shell 207 and prevent the protective shell 207 from slipping off the surface of the clamping plate 201. Then, one end of the cable is placed between the clamping plate 1 201 and the clamping plate 203, and the threaded screw 202 is manually rotated to limit the sliding of the limit rod 204 and the clamping plate 203. The clamping plate 203 threadedly connected to the threaded screw 202 moves downward, so that the top and bottom groups of worm gears 206a and the limiting circle 206b contact and clamp the cable. Then, according to the position of the clamped cable, the worm gear 206a is manually rotated to drive the fixedly connected worm 206c to rotate, so that the worm wheel 206a meshing with the worm 206c rotates, and then drives the limiting circle 206b fixedly connected to the worm wheel 206a to rotate, and cooperates with the worm wheel 206a and worm 206c on the lower side of the cable to enable the clamped cable to move in the clamping position, thereby adjusting the clamping position of the cable.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A tension test device for YJV cables, characterized in that: include: The main unit (100) comprises a base (101), one side of the base (101) is fixedly connected to a motor (103), and the output end of the motor (103) is fixedly connected to a bidirectional threaded rod (104), the bidirectional threaded rod (104) is rotatably connected to the base (101), both ends of the bidirectional threaded rod (104) are threadedly connected to a moving block (105), and both sides of the moving block (105) are respectively slidably connected to the inner wall of the base (101), and the other side of the base (101) is installed with a control panel (102); The fixing unit (200) comprises two groups of clamping plates (201) fixedly connected to the upper sides of the two groups of moving blocks (105), and one side of the clamping plate (201) is rotatably connected to a threaded screw (202), the surfaces of the two groups of threaded screws (202) are threadedly connected to clamping plates (203), and the other sides of the clamping plates (203) are slidably connected to limit rods (204), and the two groups of limit rods (204) are fixed to the clamping plate (201). The two groups of the clamping plate 1 (201) and the clamping plate 2 (203) are connected, and the sides close to each other are provided with a rotating groove (205), and the rotating groove (205) is provided with an adjusting component (206), and the upper sides of the two groups of the moving blocks (105) are provided with two groups of sliding grooves (106), and the inner wall surfaces of the sliding grooves (106) are slidably connected with a protective shell (207), and one side of the two groups of the protective shells (207) is provided with a positioning component (209).

2. A YJV cable tension test device according to claim 1, characterized in that: Each group of the adjustment components (206) includes a worm wheel (206a) arranged inside the rotating groove (205), and both sides of the worm wheel (206a) are fixedly connected to the limiting circular blocks (206b), and the two groups of the limiting circular blocks (206b) are fixedly connected to the rotating shaft on the opposite sides, and the rotating shaft is rotatably connected to the inner wall of the rotating groove (205), and the upper sides of the two groups of the top worm wheels (206a) are meshed with worms (206c), and the worms (206c) are rotatably connected to the second clamping plate (203), and one end of the two groups of the worms (206c) is fixedly connected to a handle (206d).

3. A YJV cable tension test device according to claim 2, characterized in that: Each group of the limiting round blocks (206b) is of conical design, and the end of each group of the limiting round blocks (206b) that is closer to each other is the end with a smaller inner diameter. The surface of each group of the limiting round blocks (206b) is fixedly connected with a plurality of anti-skid particles, and the anti-skid particles are made of rubber.

4. A YJV cable tension test device according to claim 3, characterized in that: The two groups of positioning components (209) both include a fixed plate (209a) fixedly connected to the upper side of the base (101), and the interior of the fixed plate (209a) is slidably connected to a slide rod (209b), the two groups of slide rods (209b) are fixedly connected to a fixed seat (209c) on one side of the protective shell (207), and one side of the fixed seat (209c) is provided with a ball bearing, and the two groups of ball bearings are movably connected to the protective shell (207), and the surfaces of the two groups of slide rods (209b) are both sleeved with a spring (209d), and the two ends of the spring (209d) are respectively fixedly connected to the fixed plate (209a) and the fixed seat (209c).

5. A YJV cable tension test device according to claim 4, characterized in that: The two sets of protective shells (207) are both provided with positioning grooves (208) matching with the balls on one side close to the positioning assembly (209), and the positioning grooves (208) are both arranged on one side of the protective shells (207) close to one end.

6. A YJV cable tension test device according to claim 5, characterized in that: The two groups of protective shells (207) are designed to be horizontally symmetrical, and both groups of protective shells (207) are made of transparent plates.

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