CN202594599U - Tool special for hoisting casing - Google Patents

Abstract

The utility model discloses a tool special for hoisting a casing, which is used for stably hoisting a transformer casing (or CT). The tool comprises a pulley and a fixing plate, wherein the pulley is assembled with the bottom of the casing; the fixing plate is arranged on the top of the casing; and a casing sling is connected with a flange hanging ring of the casing after passing through the fixing plate. The tool is simple in structure, and is convenient to operate; and the casing (or CT) can be prevented from being collided in a hoisting process, the operating time is shortened, and the quantity of operating personnel is reduced, and the working efficiency is increased.

Description

Special tools for casing hoisting

technical field

The utility model relates to a special tool for hoisting a power system bushing, which belongs to the technical field of crane spreaders.

Background technique

During the installation and maintenance of transformers in power systems, disassembly and assembly of transformer bushings are often encountered. Generally, the disassembly and assembly of bushings is completed through the cooperation of hoisting equipment. When the oil-paper capacitive bushing is hoisted from a horizontal state to an upright state, the pressure equalizing ball at the bottom of the bushing is subjected to a large force. On the upper part of the pressure ball, artificial force is applied to make the pressure equalizing ball break away from the bottom of the packing box. Since the cooperation between the artificial force and the force of the crane is difficult to tacitly cooperate, the phenomenon that the pressure equalizing ball is damaged due to uneven force when the casing is hoisted occurs from time to time. , the same problem also exists in the hoisting process of CT; in addition, the above-mentioned hoisting method also has defects such as long operation time and a large number of operators.

Utility model content

The purpose of the utility model is to provide a special casing hoisting tool which is simple in structure, easy to operate, and can effectively avoid damage to parts during the casing hoisting process.

Problem described in the utility model is realized with following technical scheme:

A special tool for casing hoisting, which includes a pulley and a fixing plate, the pulley is fitted with the bottom of the casing, the fixing plate is installed on the top of the casing, the casing lifting rope passes through the fixing plate and connects with the casing flange ring connect.

The above special tool for casing hoisting, the trolley is composed of a casing positioning column, a support frame and two rubber and plastic wheels, one end of the casing positioning column is fixed on the support frame, and the other end penetrates into the copper conduit at the tail of the casing , the support frame includes a support plate with a rectangular structure and a rubber-plastic wheel mounting seat fixed under the support plate, a buffer rubber is arranged on the support plate, and the rubber-plastic wheel is fixed on the rubber-plastic wheel mounting seat through a wheel shaft pin .

In the above-mentioned special tool for hoisting casing, the fixing plate is a diamond-shaped plate structure, and an assembly hole matching the top of the casing is provided at its center, and hoisting holes for the sling to pass are respectively arranged on both sides thereof.

The utility model limits the direction of the pulling force that the lifting rope exerts on the casing flange ring during the lifting process through the hoisting hole on the fixing plate; the rolling of the rubber and plastic wheel of the pulley cooperates with the casing casing to rotate from the horizontal state to the vertical space. ;A buffer rubber is set on the support plate of the block, and the casing positioning column is inserted into the copper conduit at the end of the casing; the above measures fully ensure that the casing is under stable force during hoisting, and no abnormal phenomena such as bumps occur. The cannula (or CT) is securely in place. The utility model has the advantages of simple structure and convenient operation, which can not only ensure the stable hoisting of the casing (or CT), but also shorten the working time, reduce the number of operators (only two people can complete the casing hoisting), and improve the working efficiency .

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is a block diagram;

Fig. 2 is the A direction view of Fig. 1;

Fig. 3 is a fixed plate structure diagram;

Fig. 4 is a schematic diagram of the working state of the utility model when the casing is hoisted;

Fig. 5 is a schematic diagram of the working state of the utility model at a moment when the casing is in rotation;

Fig. 6 is a schematic diagram of the working state of the utility model when the casing is in an upright position.

Each label in the figure is: 1, pulley, 1-1, casing positioning column, 1-2, support plate, 1-3, rubber and plastic wheel, 1-4, rubber and plastic wheel mounting seat, 1-5, buffer rubber , 2, fixed plate, 2-1, assembly hole, 2-2, hoisting hole, 3, casing, 3-1, casing flange ring, 4, lifting rope.

Detailed ways

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, the utility model comprises a tackle 1 and a fixed plate 2, the tackle 1 is assembled with the bottom of the casing 3, and the fixed plate 2 is installed on the top of the casing 3, The casing hanging rope 4 is connected with the casing flange hanging ring 3-1 after passing through the fixing plate 2.

Referring to Fig. 1 and Fig. 2, the pulley 1 in the composition of the utility model is composed of a casing positioning column 1-1, a support frame and two rubber and plastic wheels 1-3, and one end of the casing positioning column 1-1 is fixed on the support on the frame, and the other end penetrates into the copper conduit at the end of the casing. The support frame includes a support plate 1-2 of rectangular structure and a rubber and plastic wheel mounting seat 1-4 fixed under the support plate 1-2. 1-2 is provided with a buffer rubber 1-5, and the rubber-plastic wheel 1-3 is fixed on the rubber-plastic wheel mounting seat 1-4 by a wheel shaft pin.

Referring to Fig. 3, the fixed plate 2 in the composition of the utility model is a diamond-shaped plate structure, and an assembly hole 2-1 matching the top of the casing is provided at its central position, and hoisting holes 2-1 for the sling 4 to pass through are respectively provided on both sides thereof. Holes 2-2.

Refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, and illustrate the working process and working principle of the utility model in conjunction with specific embodiments: before the casing 3 is hoisted, the fixing plate 2 is passed through the assembly hole 2- 1 and the threaded connection assembly are installed on the wiring seat at the top of the casing, and the sling 4 passes through the hoisting holes 2-2 at both ends of the fixing plate to connect with the casing flange ring 3-1. Install the block 1 at the tail of the casing 3, the block is composed of a casing positioning post 1-1 made of a metal pipe with a length of 20 cm and a diameter of 3 inches and two rubber and plastic wheels, insert the casing positioning post 1-1 into the casing Inside the copper conduit at the end of the tube. When hoisting, part of the weight of the casing 3 is pressed on the block 1, and the block 1 rotates smoothly to prevent sudden changes in force on the casing 3; the hoisting hole 2-2 on the fixed plate limits the lifting rope 4 applied to the casing during the lifting process. Lan lifts the direction of the pulling force on the lifting ring 3-1; the buffer rubber 1-5 arranged on the support plate of the tackle reduces the impact on the pressure equalizing ball at the tail of the casing during the hoisting process. The above measures fully ensure that the bushing 3 is subjected to a stable force during the hoisting process without bumping and other abnormal phenomena, so that the bushing (also applicable to CT) is safely in place. The casing pipe 3 is smoothly hoisted.

Claims (3)

1. A special tool for casing hoisting, characterized in that it includes a pulley (1) and a fixed plate (2), the pulley (1) is fitted with the bottom of the casing (3), and the fixed plate (2) Installed on the top of the casing (3), the casing lifting rope (4) passes through the fixing plate (2) and is connected with the casing flange lifting ring (3-1). 2. A special tool for casing hoisting according to claim 1, characterized in that the trolley (1) consists of a casing positioning column (1-1), a support frame and two rubber and plastic wheels (1-3 ), one end of the casing positioning column (1-1) is fixed on the support frame, and the other end penetrates into the copper conduit at the end of the casing. The support frame includes a rectangular support plate (1-2) and a fixed The rubber and plastic wheel mounting seat (1-4) under the support plate (1-2) is provided with a buffer rubber (1-5) on the support plate (1-2), and the rubber and plastic wheel (1-3 ) are fixed on the rubber and plastic wheel mount (1-4) through the axle pin. 3. A special tool for casing hoisting according to claim 2, characterized in that the fixing plate (2) is a diamond-shaped plate structure, and an assembly hole (2- 1), the hoisting holes (2-2) for the slings (4) to pass through are respectively arranged on both sides thereof.

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