Electric wire low-temperature cold winding test equipment

Abstract

The utility model provides a wire low-temperature cold winding test device which comprises a low-temperature box, two rotatable mounting seats are arranged in the low-temperature box, fixed clamps are arranged at the bottoms of the ends, close to each other, of the two mounting seats, and movable clamps capable of sliding are arranged at the tops of the ends, close to each other, of the two mounting seats. A slidable limiting pin is arranged on the mounting seat; a limiting rod is arranged at one end, far away from the fixed clamp, of the movable clamp; according to the electric wire low-temperature cold winding test equipment, the clamping block on the winding rod slides into the fixing clamp, then the limiting rod is pushed, the movable clamp is driven to slide towards the winding rod, meanwhile, the pressed limiting pin is loosened, the limiting pin is jacked into the limiting rod for limiting under the action of resilience force of the reset spring, and the clamping block on the winding rod slides into the fixing clamp. Therefore, the winding rod is installed without being locked and installed through a screw, and the phenomenon that the screw used for locking on the winding rod is loosened due to the fact that the screw bears large shearing force in the rotating process of the winding rod is avoided.

Description

Technical Field

[0001] The utility model relates to the field of electric wire testing, in particular to low-temperature cold winding testing equipment for electric wires. Background Art

[0002] The low-temperature wire winding device is used to test the performance of round wires or round insulated wire cores under low-temperature conditions. When doing the low-temperature winding test, one end of the wire will be bolted to the winding rod, and then the winding rod will be installed in a low-temperature box by screws for testing to observe whether the wire has cracks. However, during the test, the clamping assembly will generally clamp the wire on the winding rod, which will increase the friction between the clamping assembly and the wire, making it more difficult to rotate the winding rod, which will increase the shear force on the locking screw on the winding rod, which can easily cause the screw to loosen. Utility Model Content

[0003] The utility model aims at the deficiencies in the prior art and provides a low-temperature cold winding test device for electric wires. The utility model realizes installation of the winding rod by sliding a clamping block on the winding rod into a fixed clamp, then pushing a limit rod and driving a movable clamp to slide in the direction of the winding rod, and at the same time releasing a pressed limit pin. Under the action of the self-rebound force of a reset spring, the limit pin is pushed into the limit rod for limiting, thereby realizing installation of the winding rod. There is no need to lock and install the winding rod with screws, so as to avoid the screws used for locking on the winding rod being subjected to a large shear force during the rotation of the winding rod, thereby preventing the screws used for locking on the winding rod from being loosened.

[0004] In order to solve the above-mentioned problem that during the test process, the clamping assembly generally clamps the wires on the winding rod, which increases the friction between the clamping assembly and the wires, making it more difficult to rotate the winding rod, and further increases the shear force borne by the locking screws on the winding rod, which easily causes the screws to loosen. The utility model solves this problem through the following technical solution.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A low-temperature cold winding test device for electric wires comprises a low-temperature box, wherein two rotatable mounting seats are arranged inside the low-temperature box, a fixed clamp is arranged at the bottom of one end of the two mounting seats close to each other, a slidable movable clamp is arranged at the top of one end of the two mounting seats close to each other, a slidable limit pin is arranged on the mounting seat, and a limit rod is arranged at the end of the movable clamp away from the fixed clamp.

[0007] Preferably, a return spring is provided inside the mounting seat, and the return spring is in close contact with the limit pin.

[0008] Preferably, a slide groove is provided on the mounting seat, and the limiting rod can slide in the slide groove.

[0009] Preferably, a winding rod is provided between the two mounting seats.

[0010] Preferably, both ends of the winding rod are provided with clamping blocks, the clamping blocks are integrally formed with the winding rod, and the winding rod is provided with a plurality of threading holes.

[0011] Preferably, a clamping assembly is provided inside the low-temperature box, and the clamping assembly is located on the side of the winding rod.

[0012] Preferably, a locking groove can be formed between the movable clip and the fixed clip on the same side, and the clamping block can slide into the locking groove.

[0013] Preferably, a driving hand wheel is provided at the other end of the mounting seat, and a low-temperature chamber is provided inside the low-temperature box.

[0014] Preferably, universal wheels are provided at the four corners of the bottom of the low-temperature box.

[0015] Preferably, a box cover is provided on the top of the low-temperature box, and an observation window is provided on the box cover.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model provides a low-temperature cold winding test device for electric wires, which slides a clamping block on a winding rod into a fixed clamp, then pushes a limiting rod and drives a movable clamp to slide in the direction of the winding rod, and at the same time releases a pressed limiting pin, and under the action of the self-rebound force of a reset spring, the limiting pin is pushed into the limiting rod for limiting, thereby realizing the installation of the winding rod, and there is no need to lock and install the winding rod with screws, so as to avoid the screws used for locking on the winding rod being subjected to a large shear force during the rotation of the winding rod, thereby preventing the screws used for locking on the winding rod from being loosened.

[0018] The utility model provides a low-temperature cold winding test device for electric wires. By arranging a pressing component on the side of a winding rod, a large operating space can be reserved above the winding rod, which is convenient for workers to disassemble and assemble the winding rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the low temperature box of the utility model;

[0022] Figure 3 This is a schematic diagram of the mounting seat structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the winding rod structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the movable clamp structure of the utility model;

[0025] Explanation of the figure numbers: 1. Low temperature box; 2. Box cover; 3. Observation window; 4. Universal wheel; 5. Clamping assembly; 6. Low temperature chamber; 7. Driving hand wheel; 8. Winding rod; 9. Mounting seat; 10. Slide groove; 11. Threading hole; 12. Block; 13. Limit rod; 14. Reset spring; 15. Limit pin; 16. Movable clamp; 17. Fixed clamp; 18. Locking groove. DETAILED DESCRIPTION

[0026] The utility model is described in further detail below in conjunction with the accompanying drawings.

[0027] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be used for other implementation schemes, variations, improvements, equivalent schemes, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0028] Those skilled in the art should understand that, in the disclosure of the present invention, the directions or positions indicated by the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, which are only simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be understood as limitations on the present invention.

[0029] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity. Example

[0030] See also Figure 1-Figure 5The utility model provides a low-temperature cold winding test equipment for electric wires, including a low-temperature box 1. Two rotatable mounting seats 9 are arranged inside the low-temperature box 1. The bottoms of the two mounting seats 9 close to each other are fixedly installed with fixed clamps 17. The tops of the two mounting seats 9 close to each other are slidably connected with movable clamps 16. The tops of the mounting seats 9 penetrate and slidably connect with limit pins 15. The tops of the movable clamps 16 are far away from the fixed clamps 17 and fixed with limit rods 13. A return spring 14 is arranged inside the mounting seat 9. The return spring 14 is in close contact with the limit pin 15. Under the action of the self-rebound force of the return spring 14, the limit pin 15 can be pushed out upward. A slide groove 10 is arranged on the mounting seat 9. The limit rod 13 can slide in the slide groove 10. The limit pin 15 can slide into the limit rod 13 to limit the limit rod 13. A winding rod 8 is arranged between the two mounting seats 9.

[0031] During use, the block 12 on the winding rod 8 is slid into the fixed clamp 17, and then the limit rod 13 is pushed to drive the movable clamp 16 to slide in the direction of the winding rod 8, and the pressed limit pin 15 is released at the same time. Under the action of the self-rebound force of the reset spring 14, the limit pin 15 is pushed into the limit rod 13 for limiting, thereby realizing the installation of the winding rod 8. There is no need to lock the winding rod 8 with screws, which avoids the screws used for locking on the winding rod 8 being subjected to large shear force during the rotation of the winding rod 8, resulting in loosening.

[0032] It is necessary to add that, if Figure 4 As shown, a clamping block 12 is fixed at both ends of the winding rod 8, and the clamping block 12 is integrally formed with the winding rod 8. The winding rod 8 is provided with two threading holes 11, and the staff can wind the wire to be tested on the winding rod 8 through the threading holes 11.

[0033] It should be noted that a clamping assembly 5 is provided inside the low temperature box 1, and the clamping assembly 5 is located on the side of the winding rod 8. The clamping assembly 5 is arranged on the side of the winding rod 8, and a large operating space is reserved above the winding rod 8, so that the staff can disassemble and assemble the winding rod 8. A locking groove 18 can be formed between the movable clamp 16 and the fixed clamp 17 on the same side, and the block 12 can slide into the locking groove 18. A driving hand wheel 7 is fixed to the other end of the mounting seat 9, and the driving hand wheel 7 is installed on the low temperature box 1. The staff can drive the mounting seat 9 to rotate by turning the driving hand wheel 7. A low temperature chamber 6 is provided inside the low temperature box 1, and the clamping assembly 5 and the mounting seat 9 are both located in the low temperature chamber 6. The low temperature chamber 6 is filled with cold air, which can provide a low temperature environment for the test.

[0034] It should be noted that if Figure 1As shown, universal wheels 4 are installed at the four corners of the bottom of the low-temperature box 1. The staff can push the low-temperature box 1 and cooperate with the universal wheels 4 to facilitate the rolling and transportation of the device on the horizontal ground. There is no need for multiple people to lift and transport, which saves time and effort. A box cover 2 is installed on the top of the low-temperature box 1. An observation window 3 is penetrated and fixed on the box cover 2. The observation window 3 is made of tempered glass. The staff can grasp the progress of the cold winding test of the wires inside the low-temperature box 1 through the observation window 3.

[0035] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments. Without departing from the principles, the embodiments of the present invention may be deformed or modified in any way.

Claims

1. A low temperature cold winding test equipment for electric wires, characterized in that: The invention comprises a low temperature box (1), wherein two rotatable mounting seats (9) are arranged inside the low temperature box (1), a fixing clamp (17) is arranged at the bottom of one end of the two mounting seats (9) close to each other, a slidable movable clamp (16) is arranged at the top of one end of the two mounting seats (9) close to each other, a slidable limiting pin (15) is arranged on the mounting seat (9), and a limiting rod (13) is arranged at one end of the movable clamp (16) away from the fixing clamp (17).

2. The low temperature cold winding test equipment for electric wires according to claim 1, characterized in that: A return spring (14) is provided inside the mounting seat (9), and the return spring (14) is in close contact with the limit pin (15).

3. The low temperature cold winding test equipment for electric wires according to claim 2, characterized in that: The mounting seat (9) is provided with a slide groove (10), and the limiting rod (13) can slide in the slide groove (10).

4. The low temperature cold winding test equipment for electric wires according to claim 3, characterized in that: A winding rod (8) is provided between the two mounting seats (9).

5. The low temperature cold winding test equipment for electric wires according to claim 4, characterized in that: Both ends of the winding rod (8) are provided with clamping blocks (12), the clamping blocks (12) and the winding rod (8) are integrally formed, and a plurality of threading holes (11) are provided on the winding rod (8).

6. The low temperature cold winding test equipment for electric wires according to claim 5, characterized in that: A pressing assembly (5) is provided inside the low-temperature box (1), and the pressing assembly (5) is located on the side of the winding rod (8).

7. The low temperature cold winding test equipment for electric wires according to claim 6, characterized in that: A locking groove (18) can be formed between the movable clamp (16) and the fixed clamp (17) on the same side, and the clamping block (12) can slide into the locking groove (18).

8. The low temperature cold winding test equipment for electric wires according to claim 7, characterized in that: A driving hand wheel (7) is provided at the other end of the mounting seat (9), and a low-temperature chamber (6) is provided inside the low-temperature box (1).

9. The low temperature cold winding test equipment for electric wires according to claim 8, characterized in that: Universal wheels (4) are provided at the four corners of the bottom of the low-temperature box (1).

10. The low temperature cold winding test equipment for electric wires according to claim 9, characterized in that: The top of the low-temperature box (1) is provided with a box cover (2), and the box cover (2) is provided with an observation window (3).

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