CN103618259A - Traction tool special for carbon fiber guide wire - Google Patents

Abstract

The invention discloses a special traction tool for carbon fiber wires, which includes a combined sleeve, a connecting sleeve, a wire clamping tube, an end jacket, a stepped tube and a tapered jacket, and the combined sleeve is composed of a front sleeve and a rear sleeve , one end of the rear casing is sealed, a traction member is arranged on the outside of the sealing end, and a screw is arranged on the inside, the connecting sleeve connects the front and rear casings together, a wire clamp is arranged inside the front casing, and the wire The end of the pinch tube is provided with a collet, and the outer side of the collet is provided with an end jacket, and the end jacket is spirally connected with the front sleeve, and the tapered jacket can be placed inside the stepped tube. The end of the inner wall of the stepped tube is helically connected with the screw rod at the bottom of the rear casing. The invention has simple structure and easy operation, can tighten and fix the power transmission cable without damage, can greatly improve work efficiency and success rate, and is convenient for popularization and use.

Description

Special traction tool for carbon fiber wire

technical field

The invention belongs to the technical field of power line erection, and in particular relates to a special traction tool for carbon fiber conductors.

Background technique

Carbon fiber wire, as a new energy-saving capacity expansion wire with a new structure, has solved various technical bottlenecks in the field of overhead power transmission with its advantages of low sag, light weight, less transmission loss, and corrosion resistance, and has become the development trend of overhead wires in the future. . However, at present, due to the lack of special traction tools, the carbon fiber core and the outer aluminum wire often slip during the construction of carbon fiber wires, resulting in loose strands of the wires. In addition, in the process of line erection, if traditional steel anchors are used If the cable is fixed in a tight way, the outer aluminum wire is very easy to wear. At the same time, because the carbon fiber composite core is a brittle material, the uneven radial force during crimping will damage or even break the fiber, thereby reducing the load capacity of the carbon fiber core. ability, reducing the service life of the line.

Disclosed in CN 202513521 U is a kind of tension clamp for carbon fiber composite core wire, including clamp main body, drainage clamp, steel anchor, connecting bolt, and inner liner tube, wedge-shaped clamp seat is set in the clamp main body and a wedge-shaped clamp, and an inner liner is added to the main body of the line clamp. The wedge-shaped clamp seat is a cylindrical seat cover with a tapered through hole inside and one end protruding outside, while the wedge-shaped clamp is a truncated cone with a through hole inside. The jacket has spiral stripes around the outside of the clamp body of the tension clamp, and the steel anchor is made of austenitic steel. This patented technology has the advantages of little influence by temperature, strong impact resistance and fatigue resistance, uniform grip distribution, strong bearing grip, and effectively avoids loose grip, etc., and in use, it can reduce wind resistance and reduce the dancing of transmission lines rate and reduce the galloping amplitude of the transmission line. However, the main body of the clamp disclosed in this utility model has an integral long columnar structure, which is not easy to assemble at the end, and the main body of the clamp still adopts a hydraulic method to compress and fix the cable. It is very easy to cause damage to the cable due to uneven force, thereby reducing the service life of the line. At the same time, both ends of the main body of the cable clamp are open structures, which will allow rainwater to enter and affect the performance of the cable clamp and wires .

Contents of the invention

The purpose of the present invention is to provide a special pulling tool for carbon fiber conductors with simple structure, easy operation and the ability to tighten and fix the power transmission cables without damage.

The technical solution adopted to realize the purpose of the present invention is: a special drawing tool for carbon fiber wires, including a combined sleeve, a connecting sleeve, a wire clamp, an end jacket, a stepped pipe and a tapered jacket, and the combined sleeve is composed of The front casing is composed of a rear casing, one end of the rear casing is sealed, a traction member is arranged outside the closed end of the rear casing, a screw is arranged inside the closed end of the rear casing, and one end of the connecting sleeve is connected to the front casing are screwed together, and the other end is screwed together with the rear sleeve, the inside of the front sleeve is provided with a wire clip, the end of the wire clip is provided with a collet, and the outer side of the collet is provided with an end Jacket, the inner side of the end jacket is tapered to match the shape of the collet, the inner wall of the end jacket is threaded and connected with the front sleeve, and the tapered jacket can be placed inside the stepped pipe , the inside of the stepped pipe is tapered, the end of the inner wall of the stepped pipe is threaded and connected with the screw at the bottom of the rear casing, and the stepped pipe and the side wall of the rear casing are provided with an outlet.

The tapered jacket is composed of more than two clips equally divided in the axial direction, and the inside of the clips has arc grooves.

A boss is provided in the middle of the connecting sleeve.

An elastic washer is arranged between the rear casing and the stepped pipe.

The front end of the end jacket is provided with a waterproof gasket.

A layer of plastic cushion is arranged on the inner wall of the wire clamping tube.

When the present invention is carrying out the construction of the transmission line erection, its segmented structure can separate the fixing of the front-end wire and the fixing of the tail-end wire core, and finally use the connecting sleeve to realize the overall connection. This structure can make the carbon fiber wire fix and pull More efficient, can greatly improve work efficiency. In the present invention, the traction member and the rear sleeve are arranged as an integral structure, and the end of the front sleeve is provided with a waterproof gasket, which can effectively prevent rainwater from entering the inside of the sleeve and preventing it from corroding the traction tool and its internal wires. The spring clamp set at the end of the front sleeve can continuously tighten the head with the rotation of the end jacket screwed with the front sleeve, and firmly clamp the wire; the rear sleeve is set inside the stepped tube When the tapered jacket is pushed toward the inner narrow end of the stepped tube, it will gradually shrink the jaw to clamp the wire core. These structures can realize the fixing of the wire without the aid of a hydraulic press, avoiding damage to the wire body by crimping, and improving the success rate of the connection. Furthermore, in order to improve the firmness of the present invention, the front sleeve can be crimped, and at this time, the plastic cushion arranged inside the wire clamp can protect the wire from damage during the crimping process. The boss in the middle of the connecting sleeve is located at the front end of the stepped tube, which can prevent the stepped tube from moving forward under the tension of the wire core, further improving the safety of the present invention.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing:

Fig. 1 is a structural schematic diagram of a special drawing tool for carbon fiber wires according to the present invention.

Detailed ways

As shown in Figure 1: a special traction tool for carbon fiber wires, including a combined sleeve, a connecting sleeve 3, a wire clamping tube 7, an end jacket 10, a stepped tube 4 and a tapered jacket 6, wherein the combined sleeve is formed from the front The casing 1 and the rear casing 2 are composed, and one end of the connecting sleeve 3 is spirally connected with the front casing 1 , and the other end is spirally connected with the rear casing 2 . Specifically, the inside of the front sleeve 1 is provided with a wire clamp 7, and the inner wall of the wire clamp 7 is provided with a layer of plastic cushion 8, which can protect the wire from damage when the front sleeve is crimped. The end of the wire clamping tube 7 is provided with a collet 9, and the outer side of the collet 9 is provided with an end jacket 10, and the inside of the end jacket 10 is a taper that matches the shape of the collet 9. The inner wall of the end jacket 10 is threaded and is screwed together with the front sleeve 1, and the collet 9 arranged at the end of the wire clamping tube 7 can continuously shrink with the rotation of the end jacket 10 screwed with the front sleeve 1. Tighten the head, firmly clamp the wire; one end of the rear sleeve 2 is sealed, a traction member 12 is arranged outside the closed end of the rear sleeve, and a screw is arranged inside, and the end of the inner wall of the stepped tube 4 is provided with a screw thread and The screws are helically connected together, and an elastic washer 5 is also arranged between the rear casing 2 and the stepped pipe 4 . In addition, the tapered jacket 6 is composed of more than two clips equally divided in the axial direction, and the inside of the clips has an arc groove. The tapered jacket 6 can be placed inside the stepped tube 4, and the stepped tube 4 The inside is tapered, and when the tapered jacket arranged inside the stepped tube 4 advances toward the inner narrow end of the stepped tube 4, the jaws will gradually shrink to clamp the wire core. Further, the side wall of the stepped tube 4 and the rear casing 2 is provided with an outlet to facilitate the lead-out of the wire core, and the middle part of the connecting sleeve 3 is provided with a boss, and the boss is located at the front end of the stepped tube 4, which can prevent the step The tube 4 moves forward under the pulling force of the wire core, which further improves the safety of the present invention, and the front end of the end jacket 10 is also provided with a waterproof gasket 11 .

When the present invention is carrying out the construction of the transmission line erection, the end jacket 10, the wire clamping tube 7, the front sleeve 1, the connecting sleeve 3, the stepped pipe 4, and the tapered jacket 6 can be placed on the wire successively; At the front end, first move the front sleeve 1 forward to cover the wire clamp 7 inside, and then move the end jacket 10 to be screwed together with the thread provided on the outside of the front sleeve 1; then, at the tail end of the front sleeve 1 Strip the wire core, and at the rear end, first move the tapered jacket 6 forward and insert it into the inside of the stepped tube 4 at the front, then pull the wire core out from the outlet of the side wall of the stepped tube 4, and then hold the stepped tube 4, screw the screw at the bottom of the rear casing 2 connected with the traction piece 12 to the port of the stepped pipe 4; finally, screw the connecting sleeve 3 in the middle to the front casing 1 and the rear casing 2 respectively Just connect them together. In order to further fix the wires, a hydraulic press can also be used for crimping at the middle of the front sleeve 1, and at this time, the plastic cushion 8 arranged inside the wire clamping tube 7 can protect the wires from damage during the crimping process.

In a word, the unique segmented connection structure of the present invention can more quickly realize the connection, fixation and tension of the wires, greatly improve the efficiency and success rate of the operation, and facilitate popularization and use.

Claims (6)

1. A special traction tool for carbon fiber wires, comprising a combined sleeve, a connecting sleeve, a wire clamp, an end jacket, a stepped pipe and a tapered jacket, characterized in that: the combined sleeve consists of a front sleeve and a rear sleeve One end of the rear casing is sealed, a traction member is arranged outside the closed end of the rear casing, a screw is arranged inside the closed end of the rear casing, one end of the connecting sleeve is spirally connected with the front casing, and the other One end is spirally connected with the rear sleeve, the inside of the front sleeve is provided with a wire clamp, the end of the wire clamp is provided with a collet, the outer side of the collet is provided with an end jacket, and the end The inner side of the jacket is tapered to match the shape of the collet, and the inner wall of the end jacket is threaded to be screwed together with the front sleeve. The tapered jacket can be placed inside the stepped tube, and the inside of the stepped tube It is tapered, and the end of the inner wall of the stepped tube is threaded to be screwed together with the screw at the bottom of the rear sleeve, and the stepped tube and the side wall of the rear sleeve are provided with an outlet. 2. The special pulling tool for carbon fiber wires according to claim 1, characterized in that: the tapered jacket is composed of more than two clips equally divided in the axial direction, and the inner side of the clips has arc grooves. 3. The special pulling tool for carbon fiber wires according to claim 1, characterized in that: a boss is set in the middle of the connecting sleeve. 4. The special pulling tool for carbon fiber wires according to claim 1, characterized in that: an elastic washer is arranged between the rear casing and the stepped pipe. 5. The special drawing tool for carbon fiber wire according to claim 1, characterized in that: a waterproof gasket is provided at the front end of the end jacket. 6. The special drawing tool for carbon fiber wire according to claim 1, characterized in that: the inner wall of the wire clamping tube is provided with a layer of plastic cushion.

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