CN101428412B - Special tool for electrified fastening bolt - Google Patents

Abstract

The invention relates to a special tool for fastening a bolt in a charged manner, which is characterized by consisting of two parts, wherein one part is a lower chuck for preventing the bolt from rotating, and the other part is an upper chuck for fastening the bolt; the upper clamping head is: the head of the insulating rod is connected with a rotary connector through a bolt and a nut, the connecting pipe is also connected with the rotary connector through a bolt and a nut, the lengthened jack wrench is inserted into the connecting pipe, the wrench sleeve is inserted into the lengthened jack wrench, and the variable-angle supporting plate is hinged to the connecting plate on the connecting pipe; the lower chuck is: the head of the insulating rod is provided with a joint by a bolt and a nut, the lower insulating rod is also provided with an anti-rotation device, and the joint is provided with a wrench; the power equipment maintenance device has the advantages of light weight, convenience in movement, safety in use and the like, maintenance of power equipment can be carried out without the need of ascending a height of maintenance personnel and approaching the equipment, economic loss caused by power failure is reduced, and economic and social benefits are remarkable.

Description

A special tool for live fastening bolts

technical field

The invention belongs to electric power maintenance equipment and tools, in particular to a special tool for live fastening bolts.

Background technique

In the 110--220KV substation primary equipment of the power supply department, such as switches, CT, PT leads, etc., the looseness of these equipment will cause heat generation and frequent failures. The main reasons are as follows: 1. Oxidation of the contact surface; 2. Loosening of the lead wire caused by excessive wind force; 3. The quality of the bolts; 4. The quality of the line card is poor (the surface is uneven, and the contact surface is below 80%). The consequence is that the lead line card heats up and needs to be treated with a power outage (this fault mostly occurs during the peak power supply period in summer). Taking a 110KV line power outage for 2 hours as an example, the power outage loss caused by each treatment is 30,000 KWh, which is a direct and large economic loss. For the maintenance of electrical equipment, the existing general-purpose tools, such as various wrenches, require that the electrical equipment must be powered off, and maintenance personnel need to climb a height and approach the equipment to perform maintenance. This operation is inefficient and affects normal power supply. In order to facilitate the need to develop a special tool for live fastening bolts.

Contents of the invention

The purpose of the present invention is to provide a special tool for fastening bolts with live electricity, which is simple in structure and easy to use for the maintenance and repair of electric equipment in the electric power supply department.

In order to realize the above object, the technical scheme of the present invention is:

A special tool for fastening bolts with electricity, which is characterized in that it consists of two parts, one part is a lower chuck for preventing the rotation of the bolt, and the other part is an upper chuck for fastening the bolt; the upper chuck includes an insulating rod , rotating connector, connecting pipe, bolts and nuts, extended jack wrench, wrench socket, variable angle support plate; the head of the insulating rod is connected to the rotating connector with bolts and nuts, and the connecting pipe is also connected to rotating with bolts and nuts Connector, the extended jack wrench is inserted into the connecting pipe, the wrench socket is inserted on the extended jack wrench, and the variable angle support plate is hinged on the connecting plate on the connecting pipe; the lower chuck includes an insulating rod, a joint, an anti-rotation Device; a joint is installed on the head of the insulating rod by bolts and nuts, the anti-rotation device is installed on the lower insulating rod, and a wrench socket is provided on the joint. The joint of the lower chuck and the wrench socket can be made into one body.

The outstanding substantive features and remarkable progress of the live fastening bolt special tool of the present invention are:

1. It has the advantages of light weight, convenient movement and safe use.

2. Although the technological content is not high, under normal power supply conditions, maintenance personnel can carry out maintenance of power equipment without the need for maintenance personnel to climb up and approach the equipment, which can play an important role in actual production. For example, a total of 6 such failures occurred in a substation maintenance work area, and the tool was used to deal with it, and good results were achieved.

3. Guarantee the power supply of electric equipment, reduce economic losses caused by power outages, and have significant economic and social benefits.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the upper chuck in the present invention;

Fig. 2 is a schematic diagram of the structure of the middle and lower chucks of the present invention.

Detailed ways

Below in conjunction with accompanying drawing describe in detail:

The special tool for tightening bolts with electricity of the present invention is composed of two parts, one part is the lower clamping head for preventing the rotation of the bolts, and the other part is the upper clamping head for fastening the bolts.

As shown in Figure 1, the upper chuck includes an insulating rod 1, a rotating connector 7, a connecting pipe 9, bolts and nuts 10, an extension jack wrench 5, a wrench socket 6, and a variable-angle support plate 8; The head is connected to the rotary connector with bolts and nuts, and the connecting pipe is also connected to the rotary connector with bolts and nuts. The extended jack wrench is inserted into the connecting pipe, the wrench socket is inserted on the extended jack wrench, and the variable angle support plate is hinged on the connecting pipe. connection plate on the tube.

As shown in Figure 2, the lower chuck includes an insulating rod 1, a joint 2, an anti-rotation device 3, and a wrench sleeve 6; the joint is mounted on the head of the insulating rod by bolts and nuts, and the anti-rotation device is installed on the On the insulating rod, the anti-rotation device can adjust the height arbitrarily on the insulating rod of the lower chuck, and the wrench sleeve is installed on the joint. The joint of the lower chuck and the wrench socket can also be made into one, so that it is only suitable for fastening and maintenance of bolts and nuts of one specification on electrical equipment, and the joint and the wrench socket can be separated to replace wrench sets of different specifications. It can be used for fastening and maintenance of bolts and nuts of various specifications on electrical equipment.

The use method of the special tool for live fastening bolts of the present invention

First, one person holds the insulating rod of the lower chuck to make the lower chuck clamp the upper bolt or nut of the electrical equipment to be overhauled, and then another person makes the wrench socket of the upper chuck also be placed on the electrical equipment to be overhauled. On the nuts or bolts on the equipment, and support the variable-angle support plate on a certain point of the electrical equipment, at this time, hold the insulating rod on the clamp head and swing the extended jack wrench to tighten the bolts and nuts on the electrical equipment, so that the loose The bolts and nuts on the electrical equipment are tightened to complete the maintenance work, so as to ensure the normal operation of the electrical equipment.

Claims (2)

1. a charged fastening bolt specific purpose tool is characterized in that being made up of two parts, and a part has been the following dop that prevents that bolt from rotating, and another part is the upper chuck that is used for fastening bolt; Described upper chuck comprises insulating bar (1), rotational connector (7), tube connector (9), bolts and nuts (10), the very heavy spanner (5) that extends, wrench socket (6), varied angle gripper shoe (8), the head of described insulating bar (1) connects rotational connector (7) with bolts and nuts, tube connector (9) also is connected with bolts and nuts (10) with rotational connector, the very heavy spanner (5) that extends is inserted in the tube connector, wrench socket (6) is inserted on the lengthening very heavy spanner (5), and varied angle gripper shoe (8) is hinged on the connecting plate on the tube connector (9); Described dop down comprises insulating bar (1), joint (2), anti-rotation device (3), adorn a joint (2) at described insulating bar (1) head by bolts and nuts, described anti-rotation device (3) is contained on the insulating bar, has wrench socket (6) on the described joint.

2. a kind of charged fastening bolt specific purpose tool according to claim 1 is characterized in that the joint (2) of described dop down is made into one with wrench socket (6).

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