CN203632091U - Motor-drive multi-grooved-pulley stringing device - Google Patents

Abstract

Due to the frictional resistance between the transmission wire and the spanning frame will have a great impact on the traction parts, the rope and the pulley will be entangled and the pulley will shift due to the wind force during the process of guiding the pull wire. After this phenomenon occurs It is difficult for the block to move, and it is easy to cause phenomena such as cable stagnation, which in turn affects the construction process and increases the amount of maintenance and other procedures, increasing the construction cost. The utility model provides a motor-driven multi-groove stringing device, which uses three groove wheels in series to install the wires. The spanning frame of this structure can obviously reduce the device deviation and the cable rolling phenomenon. In addition, the device is equipped with Multiple electric motors deliver cables efficiently and smoothly.

Description

Electric motor drive multi-groove pulley stringing device

technical field

The utility model relates to a spanning frame for erecting transmission lines.

Background technique

Since the quality of the transmission wire, especially the high-voltage transmission wire itself, is large, and the two adjacent iron towers used to support the transmission wire have a large span, and there are charged objects, crops, trees, etc. between the two adjacent iron towers. Obstacles such as rivers, roads, buildings and structures are crossed, so erecting or dismantling transmission lines is a complex and difficult project.

In the prior art, erecting or dismantling the transmission wire usually adopts a guide rope installed between two adjacent iron towers and a pulley suspended on the guide rope and controlled by the pull wire, and in order to avoid the transmission wire from contacting the ground or the above-mentioned The spanning frame and insulation net contacting across obstacles, wherein the spanning frame is a frame structure made of alloy steel or light aluminum alloy. Since the transmission wire that needs to be erected or dismantled is pulled by the pulley, it needs to move between two adjacent iron towers, and in the process of moving the transmission wire, it is supported by the spanning frame and slides on it, thus It can be seen that the spanning frame not only bears the weight of the transmission wire, but also produces sliding friction with the transmission wire. Therefore, no matter how strong the spanning frame is, it is easily worn by the large friction force generated by the sliding transmission wire, especially The disassembled old power transmission wire, because of its surface similar to the saw-tooth-shaped tip, is more likely to damage the spanning frame; in addition, the frictional resistance between the power transmission wire and the crossing frame will also have a greater impact on the traction parts, because the conductor The guide rope and pulley, as well as the pulley are affected by the wind force in the high altitude, and there are often phenomena such as the guide rope and the stay wire winding and the pulley offset. In the offset state, it is necessary to overcome the frictional resistance between the transmission wire and the spanning frame to move the transmission wire, which can easily cause stagnation of the transmission wire and other phenomena, thereby affecting the construction process and increasing the amount of maintenance. The construction cost is significantly increased.

Because the transmission wires that need to be erected or removed are pulled by pulleys, they have to move between two adjacent iron towers. Because the guide ropes, pulleys, and stay wires are subjected to wind force at high altitude, the pulleys will be twisted. If The pulley cannot automatically adjust the direction, and the guide rope and the stay wire will be entangled after the pulley is twisted. After this phenomenon occurs, it is very difficult to move the power transmission wire on the pulley, especially when the pulley is twisted at a large angle. Guiding wires wind and wear at high angles, and it is also difficult to pull on power transmission wires. Another problem is that during the process of pulling the power transmission wire, the power transmission wire often jumps or moves in waves on the pulley, and this movement will also increase the resistance of the traction, even if the pulley is not twisted. , and its traction resistance is also very large, which will bring certain difficulties to normal construction.

The title of Chinese patent No. 201260047Y announcement is "asymmetric pay-off pulley" and provides a kind of solution. The pay-off pulley includes a hanging plate and a bracket, as well as a pulley defined by the bracket. Although the frictional resistance can be reduced by rolling friction between the pulley and the power transmission wire, due to the fixed connection between the hanging plate and the bracket, the pay-off The pulley is easy to twist under the action of external wind, and the twisting of the pulley will make the transmission wire not in a straight line, thereby increasing the resistance of the traction transmission wire; Rolling contact, when the power transmission wire is in the traction process, its fluctuation will touch the upper part of the frame, and then form sliding friction between it and the frame, the friction resistance will be greatly increased, and it will bring certain difficulties to the wiring operation.

Publication number is that the patent of CN102227064 A proposes a kind of spanning frame that erects transmission line usefulness, and the structure of this patent is complex, and the wiring operation is complicated, and the wiring efficiency is not high, and the scope of use is limited.

Utility model content

Aiming at the deficiencies of the prior art, the utility model discloses a motor-driven multi-groove wire-drawing device.

The technical scheme of the utility model is as follows:

Motor-driven multiple sheave stringing device, which includes a bracket and a sheave set on the bracket, the bracket is divided into three sub-supports, one of the three sub-supports is at the top, and the other two sub-supports are at the bottom. The two sub-supports below are arranged horizontally. A sheave is respectively arranged on the three sub-supports, and a sheave partition is arranged between each sheave on the sub-supports. The motors are respectively fixed on the sub-supports on both sides of the sheave, and the rotating shaft of the sheave is connected with the output shaft of the motor. The electric motor powers the sheave.

Motors are added on both sides of the sheaves of each sub-support of the utility model device. The power of each motor does not need to be too large to transmit the cable quickly and efficiently. The overall balance is enhanced, and the wiring is stable.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

The motor-driven multi-groove stringing device, as shown in Figure 1, includes a support 1 and a sheave 3 arranged on the support 1, the support 1 is divided into three sub-supports 11, 12, 13, and among the three sub-supports One of the sub-supports 11 is at the top, the other two sub-supports 12, 13 are at the bottom, and the two sub-supports 12, 13 at the bottom are arranged horizontally. A sheave 3 is respectively arranged on the three sub-supports 11, 12, 13, and a sheave dividing plate 4 is arranged between each sheave 3 on the sub-supports 11, 12, 13. Wherein the sub-supports 11, 12, 13 on both sides of the sheave 3 respectively fix the motor 5, and the rotating shaft of the sheave 3 is connected with the output shaft of the motor 5.

When the cable is erected, the cable passes through the three sheaves 3, and the motor 5 is turned on. The six sheaves 3 are all driving wheels. before teleport. In addition, each motor is detachable, and the package can be removed when not in use to avoid corrosion.

Claims (2)

1. Motor-driven multi-groove stringing device, which includes a bracket (1) and a sheave (3) set on the bracket (1). The bracket (1) is divided into three sub-racks (11), (12) , (13), wherein the sub-support (11) top of the top is provided with a hanging plate (2), three sub-supports (11), (12), and (13) are respectively provided with a sheave (3), and the sub-support (11) A sheave dividing plate (4) is established between each sheave on (12), (13); it is characterized in that: sub-supports (11), (12), (13) on both sides of the sheave (3) ), fix the motor (5) respectively, and the rotating shaft of the sheave (3) is connected with the output shaft of the motor (5). 2. The motor-driven multiple sheave stringing device according to claim 1, characterized in that: the lower sub-supports (12), (13) are located below the sub-supports (11), and the sub-supports (12), (13) Horizontal setting.

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