CN205846576U - A kind of alternating current-direct current overhead transmission line changes drift bolt formula conductor spacer specific purpose tool - Google Patents

Abstract

The utility model belongs to the technical field of electric power, and more specifically relates to a special tool for replacing a nail-piercing spacer for an AC/DC overhead power transmission line. It is characterized in that there is a threaded screw 1, a top piece clamping groove seat 2 is arranged at the front end of the leading screw 1, a top piece clamping groove 3 is opened on the top piece clamping groove seat 2, and an axis 10 is arranged in the top piece clamping groove 3, the axis 10 is movably connected with a top piece 4; the rear end of the leading screw 1 is threadedly connected with the leading screw sleeve 6; a gasket 5 is sleeved between the leading screw 1 and the leading screw sleeve 6; the rear end of the leading screw sleeve 6 End also has a booster rod perforation 8, and booster rod 7 is housed in the booster rod perforation 8. Because the utility model is a special tool for replacing nail-piercing type spacers for AC/DC overhead transmission lines, it is light in weight, small in size and flexible in operation, greatly improving the working efficiency of replacing the spacers.

Description

A special tool for replacing nail-piercing spacers for AC/DC overhead transmission lines

technical field

The utility model belongs to the technical field of electric power, and more specifically relates to a special tool for replacing a nail-piercing spacer for an AC/DC overhead power transmission line.

Background technique

Two, four or more split conductors are used for each phase conductor of long-distance and large-capacity EHV transmission lines. In order to ensure that the distance between the split wire harnesses remains unchanged to meet the electrical performance, reduce the surface potential gradient, and in the case of a short circuit, the electromagnetic force will not be generated between the wire harnesses, causing mutual attraction and collision, or even if the instantaneous attraction collision is caused, but after the accident is eliminated That is to say, it can return to the normal state, so the spacer rods can be installed at a certain distance in the span, and the vibration and breeze vibration of the secondary span can also be restrained to a certain extent by installing the spacer rods at the same time.

Although the spacer bar can keep the distance between the split wire harnesses unchanged, the bolts of the spacer bar lack flat pads and spring pads, and the fastening is not in place, which is prone to loosening, slipping, and falling off; the transmission line is in the open environment all the year round, and under the action of wind , the wire dances, causing the bolts of the spacer to loosen and fall off; if the spacer does not meet the requirements of the relevant process specifications during installation, the connection is not reliable, and it is prone to loosening due to long-term wind force during operation , falling off, slipping, etc.

Therefore, it is often necessary to repair the spacer rods during the operation of the transmission line. The spacer uses the clamp 12 on the head to clamp the wire, and a thicker rubber pad 13 is installed inside the clamp 12. The function of the rubber pad 13 is to ensure that the friction between the clamp and the wire is reduced. When the clamp 12 clamps the wire and fixes it During the pin, because the rubber pad 13 has a certain elasticity, it is difficult for the clamp 12 to clamp the wire and install the pin so that the pin passes through the pin hole 11, so it is a waste of time to fix the wire with the clamp 12, and the work efficiency is extremely low; Or when needing to pull out pin and open clamp 12, because the head of clamp 12 produces huge pressure to pin, so also very difficult when pulling out pin. And now there is no tool that is specially used to install and remove the pins of the fixture 12. In order to ensure the normal operation of the line, reduce the load loss of the line, and improve economic benefits, it is necessary to reduce the time of power failure as much as possible in actual work. A simple and lightweight special tool to improve work efficiency and ensure smooth operation.

Utility model content

The purpose of this utility model is to address the above specific problems, in order to overcome the defects of the prior art, thereby providing a simple in structure, easy to use special tool for replacing nail-piercing spacer rods for AC/DC overhead transmission lines, using the present invention can easily replace the The clamp 12 of the spacer is fixed tightly so that the pin can easily pass through the pin hole 11 to fix the clamp 12, or the pin on the spacer clamp 12 can be easily pulled out from the clamp 12 by using the present invention.

The technical solution adopted by the utility model to solve the technical problem is: to construct a special tool for replacing the nail-piercing spacer for AC/DC overhead transmission lines, which is characterized in that: there is a threaded screw 1, and there is a top clip at the front end of the lead screw 1 Groove seat 2 has a top sheet clip groove 3 on the top sheet clip slot seat 2, and an axis 10 is arranged in the top sheet clip groove 3, and the shaft 10 is movably connected with a top sheet 4; The cylinder 6 is threadedly connected; a gasket 5 is sleeved between the lead screw 1 and the lead screw sleeve 6; the rear end of the lead screw sleeve 6 also has a booster rod perforation 8, and the booster rod perforation 8 is equipped with Afterburner rod 7. The two ends of the booster rod 7 have an anti-dropping pin 9 respectively, so that the booster rod 7 will not fall from the punching hole 8 of the booster rod.

Another feature of the utility model is that the gasket 5 is circular, and its outer diameter is greater than the diameter of the screw sleeve 6 .

Another feature of the utility model is that the top sheet 4 can rotate at any angle in the top sheet clamping groove 3 .

A special tool for replacing nail-piercing spacers for AC/DC overhead transmission lines of the utility model has the following beneficial effects: the special tool for replacing nail-piercing spacers for AC/DC overhead transmission lines of the utility model is light in weight, small in volume, and easy to operate Flexible, suitable for both live and power-off operations, and also suitable for the replacement of all spacer rods connected by nails, which improves the versatility of the tool and greatly improves the work efficiency of replacing the spacer rods.

Description of drawings

Fig. 1 is the front view of the utility model;

Fig. 2 is the top view of the utility model;

Fig. 3 is the left view of the utility model;

Fig. 4 is the right view of the utility model;

Fig. 5 is a partial enlarged view of the force rod perforation 8 and the force rod 7 at the front end of the screw sleeve 4 in the top view of the utility model;

Fig. 6 is a schematic diagram of a six-split spacer for an overhead transmission line;

Fig. 7 is a schematic diagram of a four-split spacer for an overhead transmission line.

In the accompanying drawings, 1 is a lead screw, 2 is a top plate clamping groove seat, 3 is a top plate clamping groove, 4 is a top plate, 5 is a gasket, 6 is a screw sleeve, 7 is a booster rod, and 8 is a booster Force bar perforation, 9 is anti-drop pin, and 10 is axle, and 11 is pin hole, and 12 is clamp, and 13 is rubber pad.

detailed description

Example 1

A special tool for replacing nail-piercing spacers for AC/DC overhead transmission lines, which is characterized in that: there is a threaded screw 1, and at the front end of the threaded screw 1 there is a top plate clamping groove seat 2, and a top plate clamping groove seat 2 is opened on the top plate clamping groove seat 2. Sheet clip groove 3, there is a shaft 10 in the top sheet clip groove 3, and the shaft 10 is movably connected with a top sheet 4; the rear end of the lead screw 1 is threadedly connected with the lead screw sleeve 6; the lead screw 1 and the lead screw sleeve 6 A spacer 5 is sleeved between them; the rear end of the screw sleeve 6 also has a booster rod perforation 8, and a booster rod 7 is housed in the booster rod perforation 8. The two ends of the booster rod 7 have an anti-dropping pin 9 respectively, so that the booster rod 7 will not fall from the punching hole 8 of the booster rod.

When the clamp 12 on the spacer needs to clamp the wire installation pin, turn the AC-DC overhead transmission line to replace the force bar 7 of the special tool for piercing the spacer so that the screw thread on the screw 1 gradually extends out of the screw sleeve 6, Turn the top piece 4 to make the top piece 4 parallel to the top piece clamping groove 3, close the clamp 12 of the spacer bar, and use the AC/DC overhead power transmission line to replace the nail-penetrating spacer special tool top piece clamping groove seat 2 into the side of the clamp 12 In the hole, turn the top piece 4 so that the top piece 4 is perpendicular to the top piece clamp groove 3, use the top piece 4 to withstand one end of the clamp 12, turn the booster rod 7 so that the screw 1 gradually extends into the screw sleeve along the thread 6. Until the clamp 12 is clamped tightly enough between the spacer 5 and the top sheet 4 and the pin can easily pass through the pin hole 11, after the pin passes through the pin hole 11, turn the booster lever 7 to make the lead screw 1 stretch out gradually. Bar sleeve 6, rotate the top piece 4 to make the top piece 4 parallel to the top piece clamp groove 3, pull out the AC/DC overhead transmission line to replace the special tool for the nail-penetrating spacer, and the process of installing the spacer clamp 12 to the electric wire is completed; When it is necessary to remove the pin and open the clamp 12, turn the booster rod 7 of the special tool for replacing the nail-piercing spacer for the AC/DC overhead transmission line so that the screw 1 gradually protrudes from the screw sleeve 6 along the thread, and turn the top piece 4 to make the top piece 4. Parallel to the top sheet clamping groove 3, replace the nail-penetrating spacer special tool wire top sheet clamping groove seat 2 with the AC/DC overhead transmission line and insert it into the hole on the side of the fixture 12, and turn the top sheet 4 so that the top sheet 4 and the top sheet The clamping groove 3 is vertical, use the top piece 4 to support one end of the fixture, and turn the force bar 7 in the opposite direction so that the screw 1 gradually extends into the screw sleeve 6 along the thread until the fixture is closed between the gasket 5 and the top piece 4. The clip is tight enough and the pin can be easily pulled out of the pin hole 11. After the pin is pulled out of the pin hole 11, turn the force bar 7 to make the screw 1 gradually extend out of the screw sleeve 6, and turn the top piece 4 so that the top piece 4 is in line with the top piece. The clip grooves 3 are parallel, and the AC/DC overhead transmission line is pulled out to replace the nail-penetrating spacer special tool, and the disassembly process of the spacer clamp 12 is completed.

Example 2

A special tool for replacing nail-piercing spacers for AC/DC overhead transmission lines, characterized in that: there is a threaded screw 1, and a threaded top plate clamping groove seat 2 is provided at the front end of the lead screw 1, and a top plate clamping groove seat 2 is opened at the front end There is a top sheet clamping groove 3, and an axle 10 is arranged in the top sheet clamping groove 3, and the axle 10 is movably connected with a top sheet 4; the rear end of the leading screw 1 is threadedly connected with the leading screw sleeve 6; the leading screw 1 and the leading screw sleeve A spacer 5 is sleeved between the cylinders 6; the rear end of the lead screw sleeve 6 also has a booster rod perforation 8, and a booster rod 7 is housed in the booster rod perforation 8.

Use process is identical with embodiment 1.

Claims (4)

1. A special tool for replacing nail-piercing spacers for AC/DC overhead transmission lines, characterized in that: there is a threaded screw (1), and a top plate clamping groove seat (2) is arranged at the front end of the lead screw (1). There is a top piece clamping groove (3) on the clamp groove seat (2), and a shaft (10) is arranged in the top piece clamping groove (3), and the shaft (10) is movably connected with a top piece (4); the leading screw (1) The rear end of the lead screw sleeve (6) is threadedly connected; a gasket (5) is sleeved between the lead screw (1) and the lead screw sleeve (6); the rear end of the lead screw sleeve (6) There is also a booster rod perforation (8), and a booster rod (7) is housed in the booster rod perforation (8). 2. A special tool for replacing nail-piercing spacer rods for AC/DC overhead transmission lines according to claim 1, characterized in that: the two ends of the booster rod (7) respectively have an anti-dropping pin (9 ). 3. A special tool for replacing nail-piercing spacers for AC/DC overhead transmission lines according to claim 1, characterized in that: the gasket (5) is circular, and its outer diameter is larger than that of the lead screw sleeve The diameter of the barrel (6). 4. A special tool for replacing nail-piercing spacers for AC/DC overhead transmission lines according to claim 1, characterized in that: the top piece (4) can be positioned at any angle in the top piece clamping groove (3). turn.