CN205381879U - A lift by crane instrument for 35 -110kV isolator overhauls - Google Patents

Abstract

The lifting tool used for maintenance of 35-110kV isolating switch of the present utility model includes a base part and a lifting part, the base part includes a base and a column, and the base includes a base fixing rod 1 and a base on the same plane Fixing rod two, base fixing rod three, base fixing rod four, the base fixing rod one and the base fixing rod three have the same length and are parallel to each other, the base fixing rod two and the base fixing rod four have the same length And parallel to each other, the upright column is vertically arranged on one side of the base, and the upright column is connected to the base through a plurality of support rods; the lifting part includes a boom, and a matching Steel wire rope, the rear end of the steel wire rope is connected to the hoisting motor arranged at the rear of the boom, the hoisting motor is located at the top of the column, the front end of the wire rope goes around the pulley in front of the boom and is connected with a hook; the base Part of the column is rotatably connected with the lifting part. The utility model is simple to assemble and disassemble, and is convenient to use.

Description

A Lifting Tool for Maintenance of 35-110kV Isolating Switch

technical field

The utility model relates to a hoisting tool, in particular to a hoisting tool used for maintenance of a 35-110kV isolating switch.

Background technique

With the rapid development of the electric power industry, a large number of isolation switch electrical equipment has been put into operation. As the most commonly used GW4/GW5-126 isolation switch, there are a large number of isolation switches that need to be repaired and replaced accordingly. The area is as small as possible, resulting in compact substation equipment, and the maintenance and replacement of isolation switch blades are limited by the electrification of peripheral equipment and cable trenches, and cranes cannot be used. GW4/GW5 type isolation maintenance and replacement are difficult to lift.

At present, there are 809 GW4/GW5 isolating switches (knife switches) in the substation under the jurisdiction of a power supply company. According to the maintenance cycle of 3 years, more than 270 units need to be overhauled every year. For example, when a 110kV GW4/GW5 switch knife is replaced in a certain area of a power supply company, a crane cannot be used due to the short distance to nearby live equipment. meters high), which makes the technical transformation work inefficient and prone to safety accidents such as falls.

Utility model content

The purpose of the utility model is to provide an auxiliary hoisting tool that improves work efficiency and reduces potential safety hazards, and further provides an auxiliary hoisting tool that is suitable for the installation site of GW4/GW5 isolating switches.

The utility model adopts the following technical solutions for solving technical problems:

A lifting tool for overhauling a 35-110kV isolating switch, comprising a base part and a lifting part, the base part includes a base and a column, and the base includes a base fixing bar on the same plane, a base fixing bar 2. Base fixing rod 3. Base fixing rod 4. The base fixing rod 1 and the base fixing rod 3 have the same length and are parallel to each other. The base fixing rod 2 and the base fixing rod 4 have the same length and are mutually Parallel, the column is vertically arranged on one side of the base, and the column is connected to the base through a plurality of support rods;

The lifting part includes a boom, and a matching wire rope is arranged above the boom, and the rear end of the wire rope is connected to a hoisting motor arranged behind the boom, and the hoisting motor is located at the top of the column. The front end of the steel wire rope goes around the pulley in front of the boom and is connected with a hook;

The column of the base part is rotatably connected with the lifting part.

The structural features of the utility model also lie in:

The base fixing rod 2 and the base fixing rod 4 are provided with a plurality of fixing holes for being fixed at the working position by bolts.

The second and fourth base fixing rods are longer than the first and third base fixing rods.

There are four support rods.

A limit baffle is provided at the pulley to protect the pulley.

1. The appearance of the utility model is simple, the operation is simple and light, and it is convenient for loading and unloading;

2. The electric motor of the utility model replaces manual work, which greatly shortens the time for equipment disassembly and installation, improves work efficiency, and reduces potential safety hazards;

3. The utility model solves the problem that large-scale crane tools cannot be used in the substation due to the short distance from the electrified body or the limitation of cable trenches.

4. The utility model adopts separate installation technology, and the utility model is divided into a base part and a hoisting part to be installed separately, so that it is easy to carry and install.

Description of drawings

Fig. 1 structural representation of the utility model

Reference numeral comparison table in the figure: base 1, base fixing rod one 11, base fixing rod two 12, base fixing rod three 13, base fixing rod four 14, column 2, support rod 3, boom 4 , wire rope 5, winch motor 6, pulley 7, limit baffle 71, suspension hook 8, fixed hole 9.

detailed description

As shown in Figure 1, a lifting tool for maintenance of 35-110kV isolating switch includes a base part and a lifting part, the base part includes a base 1 and a column 2, and the base includes a base on the same plane Fixed rod one 11, base fixed rod two 12, base fixed rod three 13, base fixed rod four 14, described base fixed rod one and base fixed rod three lengths are consistent and parallel to each other, and described base is fixed Rod two and base fixing rod four have the same length and are parallel to each other, and the upright column is vertically arranged on one side of the base, and the upright column is connected with the base through a plurality of support rods 3; the plurality of support rods make the base Some are more stable.

The lifting part includes a boom 4, a matching steel wire rope 5 is arranged above the boom, and the rear end of the steel rope is connected to a hoisting motor 6 arranged at the rear of the boom, and the hoisting motor is positioned at the bottom of the column. At the top, the front end of the wire rope goes around the pulley 7 in front of the boom and is connected with a hook 8; the utility model adopts the locking technology of the winch, and the winch cannot rotate when the motor loses power, so as to prevent the isolation switch from falling when the equipment loses power. Improve job security.

The column of the base part is rotatably connected with the lifting part. The rotation connection is through a bearing connection, so that the lifting part can rotate by 360°. A sleeve is arranged on the top of the column, and the lifting part is arranged on the sleeve. The sleeve and the column are connected by a bearing, and the sleeve can rotate around the center line of the column, so that the lifting part can rotate 360° around the column, and the rotation is convenient and quick, and the maintenance is simple .

The utility model is divided into a base part and a lifting part to be installed separately, which is convenient for installation and disassembly.

The base fixing rod two and the base fixing rod four are provided with a plurality of fixing holes 9 for being fixed in the working position by bolts. Ensure the stability of the utility model.

The second and fourth base fixing rods are longer than the first and third base fixing rods. The extended part is also provided with fixing holes.

There are four support rods. The four supporting rods are respectively connected to the four angles formed by the four base fixing rods.

The pulley is provided with a limit baffle 71 for protecting the pulley. Prevent the pulley from being damaged when lifting the isolating switch.

The load-bearing parts of the base part and the rotating part are made of high-strength, low-density and corrosion-resistant materials.

When the utility model is in use, at first the base part of the utility model is fixed on the working position with bolts according to the size of the cross arm of the knife switch, and the high-altitude workers can connect the safety belt with the base part of the utility model; The lifting part is installed on the base part, and the flexible rotation is tested, and the isolating switch is fixed and hung on the hook with a sling; finally, the hoisting motor is powered on, and the utility model lifts the isolating switch to make the isolating switch The base exceeds the channel steel at the bottom, after hoisting and rotating to the designated position, drop the hook to complete the hoisting, and do the opposite when disassembling.

The above has described the preferred embodiments of the utility model, but it should not be understood as a limitation on the claims. The utility model is not limited to the above embodiments, and its specific structure is allowed to change. Those skilled in the art can make various changes and deformations according to the utility model, as long as they do not depart from the spirit of the utility model, all belong to the utility model. scope defined by the claims.

Claims (5)

1. for a lifting tool for 35-110kV disconnecting switch maintenance, including base portion and lifting part, it is characterised in that:

Described base portion includes pedestal (1) and column (2), described pedestal (1) is included in conplane pedestal and fixes bar one (11), pedestal fixes bar two (12), pedestal fixes bar three (13), pedestal fixes bar four (14), described pedestal fixes bar one (11), and fix bar three (13) length with pedestal consistent and be parallel to each other, described pedestal fixes bar two (12), and fix bar four (14) length with pedestal consistent and be parallel to each other, described column (2) is vertically arranged with pedestal (1) side, described column (2) is connected by multiple support bars (3) with described pedestal (1)；

Described lifting part, including arm (4), described arm (4) is arranged over the steel wire rope (5) matched, described steel wire rope (5) rear end connects the elevator motor (6) being located at arm (4) rear, described elevator motor (6) is positioned at the top of described column (2), described steel wire rope (5) front end walk around arm (4) front pulley (7) and connect have suspension hook (8)；

The column (2) of described base portion is connected with described lifting partial turn.

A kind of lifting tool for the maintenance of 35-110kV disconnecting switch the most according to claim 1, it is characterised in that: described pedestal fixes bar two (12), pedestal is fixed bar four (14) and is provided with multiple fixing hole (9) and is used for being bolted on job position.

A kind of lifting tool for the maintenance of 35-110kV disconnecting switch the most according to claim 1, it is characterised in that: described pedestal fixes bar two (12), pedestal is fixed bar four (14) and is longer than that described pedestal fixes bar one (11), pedestal fixes bar three (13).

A kind of lifting tool for the maintenance of 35-110kV disconnecting switch the most according to claim 1, it is characterised in that: the plurality of support bar (3) is four.

A kind of lifting tool for the maintenance of 35-110kV disconnecting switch the most according to claim 1, it is characterised in that: described pulley (7) place is provided with postive stop baffle (71) and is used for protecting described pulley.