CN102629748B - Wire compression type strain clamp capable of passing through wire releasing pulley - Google Patents

Abstract

The invention discloses a wire compression type strain clamp capable of passing through a pay-off pulley, which comprises an aluminum tube, a steel anchor body and a drainage clamp assembly; the aluminum tube is a hollow circular tube, and one end of the aluminum tube is covered with a steel anchor body , the other end is pierced with a wire and crimped into one; the aluminum tube is clamped with a drain clamp assembly; the drain clamp assembly consists of a drain clamp aluminum tube, a drain clamp body and a drain clamp cover Manufactured in one piece. The feature of the present invention is that the drainage wire clip assembly is detachable. When the steel anchor body and the aluminum tube are crimped with the wire and the wire is drawn, no drainage plate is installed. After crimping, there is a stick circular device at the end of the wire. Pulled by the traction steel wire, it can smoothly pass through the groove of the pay-off pulley, and the body of the tension clamp is not subject to mechanical damage. When the traction reaches the end point, install the drainage clamp assembly to realize all the functions of the strain clamp.

Description

A wire compression type strain clamp capable of passing over a wire pulley

technical field

The invention relates to a wire compression type strain clamp capable of passing through a wire-releasing pulley, and belongs to the technical field of electric energy transmission lines.

Background technique

With the sustained and rapid development of the national economy, the demand for electricity has risen sharply. The power industry has been given important social responsibilities. , strict safety and quality, and high environmental protection requirements. In the implementation of transmission line construction projects, with the goal of resource conservation and environmental friendliness, the application of new materials and new processes has been actively promoted, which has improved the safety and reliability of transmission lines, and at the same time improved the social benefits of construction.

Contents of the invention

The object of the present invention is to provide a wire compression type strain clamp capable of passing through the pay-off pulley, which is a device material for the assembly-type stringing process of power transmission lines. The characteristic is that the drainage clamp assembly is detachable. When the steel anchor body and the aluminum tube are crimped with the wire and the wire is drawn, no drainage plate is installed. After crimping, there is a cylindrical device at the end of the wire, which is pulled by the wire. , can smoothly pass through the groove of the pay-off pulley, and the body of the tension clamp is not subject to mechanical damage. When the traction reaches the end point, install the drainage clamp assembly to realize all the functions of the strain clamp.

In order to achieve the above object, the solution of the present invention is:

A wire compression type strain clamp capable of passing through a pay-off pulley, comprising an aluminum tube, a steel anchor body and a drainage clamp assembly; the aluminum tube is a hollow tube, one end of which is covered with a steel anchor body, and the other end is worn through a There are wires and are crimped into one; the aluminum tube is clamped with a drain wire clamp assembly; the drain wire clamp assembly is made of an aluminum tube for drain wire clamp, a drain wire clamp body and a drain wire clamp cover plate .

The steel anchor body is integrally manufactured by a steel ring, a threaded section and a steel pipe section; the steel ring is connected in series with insulators, and the threaded section and the steel pipe section are pierced through steel core strands and crimped into one body ; and the threaded section and the steel pipe section are sleeved in the aluminum pipe.

The aluminum tube is processed from 6063 material seamless aluminum tube with good plasticity, weldability and corrosion resistance.

A drainage wire is crimped in the aluminum tube of the drainage wire clamp.

There are 3 drain wire clip cover plates, which are fixed and clamped on the aluminum tube by stainless steel bolts; each of the drain wire clamp cover plates is provided with a positioning hole, and a φ6 round hole is installed on the positioning hole. Aluminum body positioning bolt.

The aluminum tube of the drainage wire clamp, the body of the drainage wire clamp and the cover plate of the drainage wire clamp are all integrally forged from No. 10 steel.

The drain clamp body and the drain clamp cover are made of zAlsi12 aluminum alloy with good corrosion resistance and weldability.

The beneficial effects of the present invention are as follows: the present invention is applied to the assembly-type stringing process of the continuous tension section of the high-voltage transmission line, and is a wire compression type tension clamp that can pass through the pay-off pulley, which is comparable to that in terms of safety level, quality, and work efficiency. Compared with the traditional process, it has been greatly improved, and will play the incomparable superiority of the traditional stringing process in terms of "environmental friendliness and resource conservation". The overall function is: 1) pull the wire to transfer the tension of the wire to the tension insulator string; 2) transfer the current to flow the wire current into the lead wire. The specific advantages are: (1) The drainage clamp assembly is connected with the aluminum tube hoop, which improves the load transfer of the jumper to the aluminum tube and avoids the local stress on the aluminum tube wall; (2) The drainage clamp is in contact with the aluminum tube The area is calculated as a cylindrical surface, and the electrified area is greatly increased; (3) The drainage clamp assembly is disassembled, the steel anchor, the aluminum tube and the wire are crimped and the wire is pulled, and the drainage wire clip assembly is not installed, and the wire is pulled , can smoothly pass through the groove of the pay-off pulley, and the body of the tension clamp is not subject to mechanical damage.

Description of drawings

Fig. 1 is the structural representation of wire compression type strain clamp of the present invention;

Fig. 2 is a left side view of Fig. 1 .

Detailed ways

Example 1

A wire compression-type strain clamp that can pass over the wire pulley of this embodiment, as shown in Figures 1 and 2, includes an aluminum tube 1, a steel anchor body 2 and a drainage clamp assembly; the aluminum tube 1 is A hollow tube, one end of which is covered with a steel anchor body 2, and the other end is pierced with a wire and crimped into one; the aluminum tube 1 is clamped with a drain wire clamp assembly; the drain wire clamp assembly consists of a drain wire clamp The aluminum tube 5, the drain wire clamp body 4 and the drain wire clamp cover plate 3 are integrally manufactured. The steel anchor body 2 is integrally manufactured from a steel ring 7, a threaded section 8 and a steel pipe section 9; the steel ring 7 is connected in series with insulators, and the threaded section 8 and the steel pipe section 9 are all penetrated into steel The core stranded wires are then crimped into one body; and the threaded section 8 and the steel pipe section 9 are sleeved in the aluminum pipe 1 . The aluminum tube 1 is processed by 6063 material seamless aluminum tube, and one end is processed into a tapered point, when crimping ultra-high-strength steel-core soft aluminum stranded wire, there is a compressive stress transition zone. A drainage wire is crimped inside the aluminum tube 5 of the drainage wire clip. The drain wire clip cover plate 3 is provided with 3 pieces, and is fixed and clamped on the aluminum tube 1 by the stainless steel bolt 6; Composed of butterfly washers. Each of the drain wire clip cover plates 3 is provided with a positioning hole, and a φ6 round aluminum body positioning pin 7 is installed on the positioning hole; the positioning pin 7 is embedded and fixed on the aluminum tube 1, so that the drain wire clamp cover plate 3 and the aluminum pipe 1 did not slip. The aluminum tube 5 of the drainage wire clamp, the main body 4 of the drainage wire clamp and the cover plate 3 of the drainage wire clamp are all integrally forged from No. 10 steel. This embodiment is a kind of wire compression type strain clamp that can pass through the pay-off pulley, which is applied to the assembly-type stringing process of the continuous tension section of the high-voltage transmission line. Compared with the traditional process in terms of safety level, quality, and work efficiency, etc. It has been greatly improved, and will play the incomparable superiority of the traditional stringing process in terms of "environmental friendliness and resource conservation". The overall function realized is: 1) pull the wire to transmit the tension of the wire to the tension insulator string; 2) transfer the current to flow the wire current into the lead wire. The specific advantages are: (1) The drainage clamp assembly is connected with the aluminum tube hoop, which improves the load transfer of the jumper to the aluminum tube and avoids the local stress on the aluminum tube wall; (2) The drainage clamp is in contact with the aluminum tube The area is calculated as a cylindrical surface, and the electrified area is greatly increased; (3) The drainage clamp assembly is disassembled, the steel anchor, the aluminum tube and the wire are crimped and the wire is pulled, and the drainage wire clip assembly is not installed, and the wire is pulled , can smoothly pass through the groove of the pay-off pulley, and the body of the tension clamp is not subject to mechanical damage.

Example 2

A wire compression-type strain clamp that can pass over the wire pulley of this embodiment, as shown in Figures 1 and 2, includes an aluminum tube 1, a steel anchor body 2 and a drainage clamp assembly; the aluminum tube 1 is A hollow tube, one end of which is covered with a steel anchor body 2, and the other end is pierced with a wire and crimped into one; the aluminum tube 1 is clamped with a drain wire clamp assembly; the drain wire clamp assembly consists of a drain wire clamp The aluminum tube 5, the drain wire clamp body 4 and the drain wire clamp cover plate 3 are integrally manufactured. The steel anchor body 2 is integrally manufactured by a steel ring 7, a threaded section 8 and a steel pipe section 9; the steel ring 7 is connected in series with insulators, and the threaded section 8 and the steel pipe section 9 penetrate into the steel core The twisted wires are then crimped into one body; and the threaded section 8 and the steel pipe section 9 are sleeved in the aluminum pipe 1 . The aluminum tube 1 is processed by 6063 material seamless aluminum tube, and one end is processed into a tapered point, when crimping ultra-high-strength steel-core soft aluminum stranded wire, there is a compressive stress transition zone. A drainage wire is crimped inside the aluminum tube 5 of the drainage wire clamp. The drain wire clip cover plate 3 is provided with 3 pieces, and is fixed and clamped on the aluminum tube 1 by the stainless steel bolt 6; Composed of butterfly washers. Each of the drain wire clip cover plates 3 is provided with a positioning hole, and a φ6 round aluminum body positioning pin 7 is installed on the positioning hole; the positioning pin 7 is embedded and fixed on the aluminum tube 1, so that the drain wire clamp cover plate 3 and the aluminum pipe 1 did not slip. The drain clamp body 4 and the drain clamp cover 3 are made of zAlsi12 aluminum alloy with good corrosion resistance and weldability. This embodiment is a kind of wire compression type strain clamp that can pass through the pay-off pulley, which is applied to the assembly-type stringing process of the continuous tension section of the high-voltage transmission line. Compared with the traditional process in terms of safety level, quality, and work efficiency, etc. It has been greatly improved, and will play the incomparable superiority of the traditional stringing process in terms of "environmental friendliness and resource conservation". The overall function realized is: 1) pull the wire to transmit the tension of the wire to the tension insulator string; 2) transfer the current to flow the wire current into the lead wire. The specific advantages are: (1) The drainage clamp assembly is connected with the aluminum tube hoop, which improves the load transfer of the jumper to the aluminum tube and avoids the local stress on the aluminum tube wall; (2) The drainage clamp is in contact with the aluminum tube The area is calculated as a cylindrical surface, and the electrified area is greatly increased; (3) The drainage clamp assembly is disassembled, the steel anchor, the aluminum tube and the wire are crimped and the wire is pulled, and the drainage wire clip assembly is not installed, and the wire is pulled , can smoothly pass through the groove of the pay-off pulley, and the body of the tension clamp is not subject to mechanical damage.

Claims (1)

1. A wire compression-type strain clamp capable of passing over a pay-off pulley, characterized in that it includes an aluminum tube (1), a steel anchor body (2) and a drainage clamp assembly; the aluminum tube (1) is A hollow tube, one end of which is covered with a steel anchor body (2), the other end is threaded with a wire and the wire is crimped with the aluminum tube (1) into one; the aluminum tube (1) is clamped with a drain wire clamp assembly ; The drainage wire clamp assembly is composed of the drainage wire clamp aluminum tube (5), the drainage wire clamp body (4) and the drainage wire clamp cover plate (3), and the drainage wire clamp aluminum tube (5), the drainage wire clamp body (4) and the drainage wire clip cover (3) are manufactured in one piece; the drainage wire clamp aluminum tube (5) is crimped with a drainage wire, and the drainage wire clip cover (3) is provided with 3 block, the aluminum tube (1) is clamped between the drain clamp cover (3) and the drain clamp body (4), and the drain clamp cover (3) and the drain clamp body (4) are connected by stainless steel bolts ( 6) Tighten, connect the aluminum pipe (5) of the drainage wire clamp to the body (4) of the drainage wire clamp; a positioning hole is opened on the cover plate (3) of each drainage wire clamp, and a φ6 pin is installed on the positioning hole Round aluminum body positioning bolt (7); the steel anchor body (2) is integrally manufactured from a steel ring (7), a threaded section (8) and a steel pipe section (9); the steel ring (7) and The insulators are connected in series, after the threaded section (8) and the steel pipe section (9) are penetrated into the wire, the wire is crimped with the threaded section (8) and the steel pipe section (9) into one; and the threaded section ( 8) and the steel pipe section (9) are socketed in the aluminum pipe (1); the aluminum pipe (1) is processed from 6063 material seamless aluminum pipe; the drainage wire clamps the aluminum pipe (5), the drainage Both the clamp body (4) and the drain clamp cover (3) are integrally forged from ZAlSi12 aluminum alloy.