Steel-cored aluminum strand stable crimping tool

Abstract

The utility model discloses a stable crimping tool for a steel-cored aluminum strand, which comprises wire core clamping blocks, a base and a rocker transmission mechanism, the wire core clamping blocks comprise a wire core clamping block I and a wire core clamping block II, the wire core clamping block II is matched with a clamping groove arranged on the base and is locked and fixed through a bolt, and the rocker transmission mechanism is arranged on the base. The wire core clamping block I is fixedly connected with a working arm of the rocker transmission mechanism through a bolt, the inner arc diameter size is slightly smaller than the diameter of a wire core after the wire core clamping block I and the wire core clamping block II are combined, the rocker transmission mechanism comprises a working rocker, a rocker and a connecting rod, the working rocker is provided with a working arm, and the connecting rod is provided with an operating rod. Pressure is applied to the operating rod and transmitted to the working arm through the rocker transmission mechanism, so that the wire core clamping block I generates downward force, and the wire core clamping block I and the wire core clamping block II complete crimping of a twisted wire. According to the utility model, the wire core clamping block is used for crimping the stranded wire, the rocker transmission mechanism is used as a force conduction mode, the structure is simple and reliable, and the working efficiency during crimping of the stranded wire is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to power grid infrastructure production, especially a kind of steel-cored aluminium stranded conductor stable crimping tool. BACKGROUND

[0002] Different diameter steel-cored aluminium stranded conductor is widely used as the connecting conductor of primary equipment in power transmission infrastructure project, and at the same time, strain clamp needs to be crimped at the end of steel-cored aluminium stranded conductor to facilitate the formation of reliable connection point between primary equipment. Crimping type strain clamp is divided into explosive crimping type and hydraulic type: explosive crimping type does not need crimping machine, and operation is fast, but quality detection is difficult, and there are safety problems, and currently, it is basically not used in China; hydraulic type is crimped by hydraulic machine, and its crimping quality is reliable, and operation is safe, and it is the main method of strain clamp crimping at present.

[0003] In actual crimping process, the prominent problem is that crimping sequence is from the middle part to the end of aluminium pipe, and due to the difference between the elastic modulus of steel core and aluminium stranded conductor, the deformation elongation of inner and outer layers of aluminium stranded conductor is different, which leads to the phenomenon of conductor strand and bulging near the end of aluminium pipe, commonly known as "lantern". The "lantern" becomes serious with the increase of conductor cross-sectional area, which not only affects the appearance quality, but also generates corona. Therefore, construction unit often uses simple materials such as thin iron wire and transparent tape to stabilize the line body to prevent the occurrence of "lantern" phenomenon, but the effect of such tools is unstable, and strand and bulging phenomenon may still occur, which is time-consuming and laborious, and seriously affects work efficiency.

[0004] Therefore, it is urgent to develop a kind of steel-cored aluminium stranded conductor stable crimping tool, which can effectively improve the work efficiency during crimping of stranded conductor, and reduce the phenomenon of conductor strand and bulging near the end of aluminium pipe due to the difference between the elastic modulus of steel core and aluminium stranded conductor, improve engineering construction quality, and reduce the scrap rate of steel-cored aluminium stranded conductor. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims at providing a kind of steel-cored aluminium stranded conductor stable crimping tool, which adopts wire core clamp block to crimp stranded conductor, and adopts rocker transmission mechanism as force transmission mode, and the structure is simple and reliable, and the cost is reasonable, and it is convenient and labor-saving to use, which effectively improves the work efficiency during crimping of stranded conductor.

[0006] The utility model discloses a kind of steel-cored aluminium stranded conductor stable crimping tools, including wire core clamp block, base and rocker transmission mechanism, the wire core clamp block includes wire core clamp block I and wire core clamp block II, wire core clamp block II is matched with the clamping groove of base and is fixed by bolt locking, wire core clamp block I is fixed by bolt connection with the working arm of rocker transmission mechanism, the inner arc diameter size of wire core clamp block I and wire core clamp block II combination is slightly less than wire core diameter.

[0007] Further, the two wire core clamping blocks are a pair, and the inner arc diameters of the wire core clamping blocks are the same, and a plurality of pairs of wire core clamping blocks with different inner arc diameters can be used as replacement to adapt to the stranded wires with different diameters.

[0008] Further, the bottom plane of the wire core clamping block is provided with a bolt counterbore at the center for bolt connection and fixation, and the four corners of the bottom plane are provided with protrusions or grooves for fixation.

[0009] Further, the base comprises a wire core clamping block area and a rocker transmission mechanism area.

[0010] Further, the wire core clamping block area of the base is provided with an open slot for placing the wire core clamping block, and a center hole is provided in the open slot for bolt connection of the wire core clamping block, and the four corners of the open slot are provided with grooves or protrusions matched with the bottom plane of the wire core clamping block for fixation of the wire core clamping block.

[0011] Further, the rocker transmission mechanism area of the base is provided with a pin hole for connection with the rocker of the rocker transmission mechanism through a pin.

[0012] Further, the rocker transmission mechanism comprises a working rocker, a rocker and a connecting rod, which are connected through a pin.

[0013] Further, the working rocker is provided with a working arm, and the working arm is provided with a hole for bolt fixation of the wire core clamping block.

[0014] Further, the connecting rod is provided with an operating rod, and when pressure is applied to the operating rod, the pressure is conducted to the working arm through the rocker transmission mechanism, so that the wire core clamping block I generates a downward force to complete the crimping of the stranded wire with the wire core clamping block II.

[0015] The steel core aluminum stranded wire stable crimping tool has the advantages that the wire core clamping block is used to crimp the stranded wire, the rocker transmission mechanism is used as a force conducting mode, the structure is simple and reliable, the use is convenient and labor-saving, the working efficiency during crimping of the stranded wire is effectively improved, the phenomenon that the wires are scattered and bulged near the end of the aluminum pipe due to different elastic moduli of the steel core and the aluminum stranded wire and different deformation elongations of the inner and outer layers of the aluminum stranded wire is avoided, the engineering construction quality is improved, the scrap rate of the steel core aluminum stranded wire is reduced, and the problem of power outage and defect elimination after the engineering is put into operation is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described in connection with the drawings and embodiments:

[0017] Figure 1 The utility model is a structural schematic view; DETAILED DESCRIPTION

[0018] Figure 1The utility model discloses a structure schematic drawing, as shown in the drawing: the steel core aluminium stranded conductor stable compression tool of this embodiment, including wire core clamping block 1, base 2 and rocker transmission mechanism 3, wire core clamping block includes wire core clamping block I 11 and wire core clamping block II 12, wire core clamping block II 12 with the clamping groove of setting on the base is matched and is fixed through bolt locking, wire core clamping block I 11 with the working arm of rocker transmission mechanism is connected fixedly through bolt, wire core clamping block I 11 and wire core clamping block II 12 are combined after its inner arc diameter size is slightly less than wire core diameter.

[0019] In the embodiment, the wire core clamping block 1 is a pair of two, and the inner arc diameters of the wire core clamping blocks are the same. Multiple pairs of wire core clamping blocks with different inner arc diameters can be used as replacements to adapt to stranded conductors with different diameters.

[0020] In the embodiment, the wire core clamping block 1 is provided with a bolt counterbore at the center of the bottom plane for bolt connection and fixation. The four corners of the bottom plane are provided with protrusions or grooves for fixation.

[0021] In the embodiment, the base 2 includes a wire core clamping block area 21 and a rocker transmission mechanism area 22.

[0022] In the embodiment, the base wire core clamping block area 21 is provided with an open slot for placing the wire core clamping block II 12. The open slot is provided with a center hole for bolt connection of the wire core clamping block II 12. The four corners of the open slot are provided with grooves or protrusions matched with the bottom plane of the wire core clamping block II for fixation of the wire core clamping block II 12.

[0023] In the embodiment, the base rocker transmission mechanism area 22 is provided with a pin hole for connection with the rocker of the rocker transmission mechanism through a pin.

[0024] In the embodiment, the rocker transmission mechanism includes a working rocker 31, a rocker 32, and a connecting rod 33, which are connected through a pin.

[0025] In the embodiment, the working rocker 31 is provided with a working arm, and the working arm is provided with a hole for bolt fixation of the wire core clamping block I 11.

[0026] In the embodiment, the connecting rod 33 is provided with an operating lever. When pressure is applied to the operating lever, the pressure is transmitted to the working arm through the rocker transmission mechanism, so that the wire core clamping block I 11 generates a downward force, and the wire core clamping block II 12 completes compression of the stranded conductor.

[0027] Finally, it is to be noted that the above embodiments are only used to illustrate the technical solutions of the utility model and are not limiting. Although the utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the utility model can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the utility model. All of the above should be included in the scope of the claims of the utility model.

Claims

1. A steel-cored aluminum strand stabilizing crimping tool characterized by: It includes wire core clamp block, base and rocker transmission mechanism, the wire core clamp block includes wire core clamp block I and wire core clamp block II, the wire core clamp block II is matched with the clamping groove arranged on the base and is fixed by bolt locking, the wire core clamp block I is fixed by bolt connection with the working arm of the rocker transmission mechanism, the inner arc diameter of the wire core clamp block I and the wire core clamp block II is slightly smaller than the wire core diameter after combination.

2. Steel core aluminum cable stabilizing press tool according to claim 1, characterized in that: The wire core clamp block is a pair, and the inner arc diameters of the wire core clamp block are the same, and a plurality of wire core clamp blocks with different inner arc diameters can be replaced.

3. Steel core aluminum cable stabilizing press tool according to claim 2, characterized in that: The bottom plane of the wire core clamp block is provided with a bolt counterbore in the center for bolt connection and fixation, and the four corners of the bottom plane are provided with protrusions or grooves for fixation.

4. The steel core aluminum cable (SCAC) stable press contact tool according to claim 1, characterized in that: The base includes wire core clamp block area and rocker transmission mechanism area.

5. Steel core aluminum cable stabilizing press tool according to claim 4, characterized in that: The base wire core clamp block area is provided with an open slot for placing the wire core clamp block, and the center of the open slot is provided with a hole for bolt connection of the wire core clamp block, and the four corners of the open slot are provided with grooves or protrusions matched with the bottom plane of the wire core clamp block for fixation of the wire core clamp block.

6. The steel core aluminum cable (SCAC) stable press contact tool according to claim 1, characterized in that: The base rocker transmission mechanism area is provided with a pin hole, and the pin is connected with the rocker of the rocker transmission mechanism.

7. The steel core aluminum cable (SCAC) stable press contact tool according to claim 1, characterized in that: The rocker transmission mechanism includes working rocker, rocker and connecting rod, and is connected by pin.

8. Steel core aluminum cable stabilizing press tool according to claim 7, characterized in that: The working rocker is provided with a working arm, and the working arm is provided with a hole for bolt fixation of the wire core clamp block.

9. The steel core aluminum cable (SCAC) stabilizing and press- contacting tool according to claim 7, characterized in that: The connecting rod is provided with an operating rod, and the operating rod is pressed to conduct pressure to the working arm through the rocker transmission mechanism, so that the wire core clamp block I generates downward force to complete the crimping of the stranded wire with the wire core clamp block II.

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