Hard wire winding pliers

Abstract

The utility model provides a pair of hard wire winding pliers, which comprises a support base, one end of the support base is provided with an articulated shaft, the support base is provided with a fixed plier handle, a movable plier handle is hinged with the articulated shaft, a spring is arranged between the movable plier handle and the fixed plier handle, one end of the movable plier handle is provided with a sector gear, and the sector gear is meshed with a pinion. The pinion is rotationally installed on the supporting shaft, the supporting shaft is installed at the end, away from the hinge shaft, of the supporting base, a bending wheel is arranged at the upper end of the supporting shaft, a driving rod is arranged at the upper end of the pinion, and a winding gap is formed between the driving rod and the bending wheel. The hard wire winding clamp can be used for winding an exposed copper wire of a hard wire, and a ring nose which is accurate and meets the requirement can be quickly manufactured.

Description

Technical Field

[0001] The utility model relates to the field of maintenance of hydroelectric power plants, in particular to a hard wire winding pliers. Background Art

[0002] During the annual maintenance period of a hydropower plant, the primary department needs to conduct withstand voltage and other characteristic tests on the PT outgoing line of the transmission line, and the relay protection department needs to connect the secondary line of the PT outgoing line of the transmission line to cooperate with the primary department test. In addition, the secondary department also needs to check whether the PT secondary line wiring nose is aging. It should be noted that the PT secondary line is a hard wire, and there is no need to make a wire nose during on-site work. Instead, the insulation of the hard wire is directly stripped with a wire stripper, and the copper wire is wound into a circle, and then put on the terminal. At present, the way to make a circle nose during maintenance work is to manually circle it with needle-nosed pliers. However, due to different skills of personnel and non-standard circle noses, it may cause it to be loosely in contact with the terminal, and may cause derailment, resulting in hidden dangers such as PT disconnection. Therefore, it is urgent to invent a hard wire winding pliers to quickly make accurate and satisfactory circle noses during maintenance. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a hard wire coiling pliers, which can perform coiling operation on the exposed copper wire of the hard wire and can quickly produce accurate coil noses that meet the requirements.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a hard wire winding pliers, including a supporting base, a hinge shaft is provided at one end of the supporting base, a fixed pliers handle is provided on the supporting base, a movable pliers handle is hinged to the hinge shaft, a spring is provided between the movable pliers handle and the fixed pliers handle, a fan-shaped gear is provided at one end of the movable pliers handle, the fan-shaped gear is meshed with a pinion gear, the pinion gear is rotatably installed on the supporting shaft, the supporting shaft is installed at one end of the supporting base away from the hinge shaft, a bending wheel is provided at the upper end of the supporting shaft, a driving rod is provided at the upper end of the pinion gear, and a winding gap is provided between the driving rod and the bending wheel.

[0005] In a preferred solution, a cover plate is provided at the upper end of the hinge shaft, and a round hole is provided on the cover plate for the bending wheel and the driving rod to pass through.

[0006] In a preferred solution, a limiting protrusion is provided in the circular hole, and the driving rod stops rotating when it rotates to the position of the limiting protrusion.

[0007] In a preferred solution, a groove is provided on the outer side of the bending wheel.

[0008] In a preferred solution, a limiting groove for limiting the position of the wire is provided on the inner side of the driving rod.

[0009] The utility model provides a hard wire coiling pliers, which puts the hard copper wire between the bending wheel and the driving rod, and finally, holds the movable pliers handle to make the fan gear and the pinion rotate synchronously, and the driving rod rotates around the bending wheel, so that the hard copper wire rotates around the bending wheel for one circle to form a coil nose. The coiling pliers can meet the coiling needs of the PT secondary line nose of the relay protection department of the Three Gorges Power Plant and are easy to carry. The coiling pliers are made according to the size of the on-site equipment, with good matching, perfect coils and good contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a structural schematic diagram of the utility model from another angle;

[0013] In the figure: support base 1, hinge shaft 2, fixed clamp handle 3, movable clamp handle 4, spring 5, sector gear 6, pinion 7, support shaft 8, bending wheel 9, drive rod 10, cover plate 11, groove 901, limiting groove 1001, round hole 1101, limiting protrusion 1102. DETAILED DESCRIPTION

[0014] like Figure 1 and 2 As shown, a hard wire winding pliers comprises a support base 1, a hinge shaft 2 is provided at one end of the support base 1, a fixed clamp handle 3 is provided on the support base 1, a movable clamp handle 4 is hinged to the hinge shaft 2, a spring 5 is provided between the movable clamp handle 4 and the fixed clamp handle 3, which is used for the automatic return of the movable clamp handle 4, a fan-shaped gear 6 is provided at one end of the movable clamp handle 4, the pitch circle of the fan-shaped gear 6 takes the hinge shaft 2 as the center, the fan-shaped gear 6 is meshed with a pinion 7, the pinion 7 is rotatably mounted on a support shaft 8, the support shaft 8 is mounted at one end of the support base 1 away from the hinge shaft 2, a bending wheel 9 is provided at the upper end of the support shaft 8, a driving rod 10 is provided at the upper end of the pinion 7, and the driving rod 10 is A "ㄣ" shaped structure, with a winding gap between the driving rod 10 and the bending wheel 9. When in use, a connecting rod is provided at the bottom of the bending wheel 9, and a connecting screw hole matching the connecting rod is provided at the top of the support shaft 8, so as to realize the detachable connection of the bending wheel 9 and facilitate the replacement of bending wheels 9 of different diameters; a polygonal connecting hole matching the driving rod 10 is provided at the top of the pinion 7, and the lower end of the driving rod 10 is a polygonal cross-section rod matching the polygonal connecting hole. The lower end of the driving rod 10 is inserted into the polygonal connecting hole, so as to facilitate the replacement of the driving rod 10, so as to realize the preparation of ring noses of different diameters by replacing bending wheels 9 and driving rods 10 of different sizes.

[0015] Preferably, a groove 901 is provided on the outer side of the bending wheel 9, and the groove 901 is provided to limit the position of the wire to prevent the wire from being separated from between the bending wheel 9 and the driving rod 10 during the ring nose processing.

[0016] A limiting groove 1001 is provided on the inner side of the driving rod 10 to further limit the position of the wire.

[0017] Preferably, a cover plate 11 is provided at the upper end of the hinge shaft 2, and a round hole 1101 is provided on the cover plate 11 for the bending wheel 9 and the driving rod 10 to pass through. A limiting protrusion 1102 is provided in the round hole 1101, and the driving rod 10 stops rotating when it rotates to the position of the limiting protrusion 1102.

[0018] By providing the limiting protrusion 1102, the driving rod 10 can only rotate once around the bending wheel 9, and the number of rotations is limited.

[0019] When using it, first, select the appropriate bending wheel 9 and driving rod 10 according to the size of the coil, then place the hard copper wire in the middle of the bending wheel 9 and the driving rod 10, and finally, hold the movable pliers handle 4 to make the fan gear 6 and the pinion 7 rotate synchronously, so that the driving rod 10 rotates around the bending wheel 9, and the hard copper wire rotates around the bending wheel 9 for one circle to form a coil nose, remove the wound copper wire, loosen the movable pliers handle 4, and under the action of the spring 5, the movable pliers handle 4 is reset, and the excess wire ends can be removed with diagonal pliers. The coil winding pliers can meet the coiling needs of the PT secondary line nose of the relay protection department of the Three Gorges Power Plant and are easy to carry. The coil winding pliers are made according to the size of the on-site equipment, with good matching, perfect coils, and good contact.

Claims

1. A hard wire coil pliers, characterized in that: The invention comprises a support base (1), one end of the support base (1) is provided with a hinge shaft (2), a fixed clamp handle (3) is provided on the support base (1), a movable clamp handle (4) is hinged to the hinge shaft (2), a spring (5) is provided between the movable clamp handle (4) and the fixed clamp handle (3), one end of the movable clamp handle (4) is provided with a fan-shaped gear (6), the fan-shaped gear (6) is meshed with a pinion gear (7), the pinion gear (7) is rotatably mounted on a support shaft (8), the support shaft (8) is mounted on one end of the support base (1) away from the hinge shaft (2), a bending wheel (9) is provided at the upper end of the support shaft (8), a driving rod (10) is provided at the upper end of the pinion gear (7), and a winding gap is provided between the driving rod (10) and the bending wheel (9).

2. A hard wire coil pliers according to claim 1, characterized in that: A cover plate (11) is provided at the upper end of the hinge shaft (2), and a circular hole (1101) is provided on the cover plate (11) for the bending wheel (9) and the driving rod (10) to pass through.

3. A hard wire coiling pliers according to claim 2, characterized in that: A limiting protrusion (1102) is provided in the circular hole (1101), and the driving rod (10) stops rotating when it rotates to the position of the limiting protrusion (1102).

4. A hard wire coiling pliers according to claim 1, characterized in that: The outer side of the bending wheel (9) is provided with a groove (901).

5. The hard wire coiling pliers according to claim 1, characterized in that: A limiting groove (1001) for limiting the position of the wire is provided on the inner side of the driving rod (10).

Images