CN203632092U - Serially connected dual-grooved-pulley self-transmission type stringing apparatus - Google Patents

Abstract

In order to prevent the wires in the transmission line from rolling on the spanning frame and being stirred together to increase the friction in the conveying process, the utility model designs a self-driving stringing device with double grooved wheels in series. The wire spanning frame includes a support and a hanging plate arranged on the upper part of the support. Two sheaves are connected in series in parallel on the support. Rollers are arranged on the upper part of the sheaves, and a motor is fixed on one side of the support of the sheaves. The jumper of the cable is limited by the function of the roller, and the motor drives the double grooved wheel in series to rotate, so as to save labor and efficiently erect the cable.

Description

Self-driving stringing device with double sheaves in series

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 the pulley, as well as the pulley are affected by the wind force in the high altitude, and the guide rope and the stay wire are often entangled and the pulley is offset. After this phenomenon occurs, it is difficult for the pulley to move. 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 the pulley, they have to move between two adjacent iron towers. Because the guide rope, the pulley, and the pulley are subjected to wind force in the high altitude, the pulley 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 does not twist. , 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 self-driving stringing device with double sheaves in series.

The technical scheme of the utility model is as follows:

The self-transmission stringing device with double grooved pulleys in series includes a bracket and a hanging plate set on the upper part of the bracket. A grooved wheel is arranged at the lower end of the bracket; A motor is arranged on the bracket, and the motor provides power to the sheave to form a single-wheel automatic transmission stringing device.

The self-transmission stringing device with double sheaves in series is composed of two single-wheel automatic transmission stringing devices connected in series by a connector.

The connecting piece is a cross bar.

Since the transmission wheel is two series-connected single-wheel automatic transmission stringing devices, one of which is only responsible for incoming wires and the other is responsible for outgoing wires, which makes the running of cables more stable when erecting cables; , save manpower, and improve the efficiency of wire construction.

Description of drawings

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

Detailed ways

The self-transmission stringing device with double grooved pulleys in series, which includes a bracket 1 and a hanging plate 3 arranged on the upper part of the bracket 1, the lower end of the bracket 1 is provided with a sheave 2; A jumper wire; motor 5 is set on the bracket 1 corresponding to the side of the sheave 2, and the motor 5 provides power to the sheave 2 to form a single-wheel automatic transmission stringing device.

The self-drive stringing device with double sheaves in series is composed of two single-wheel automatic drive stringing devices connected in series by the connector 6 .

The connecting piece 6 is a cross bar.

During the stringing process, two motors 5 provide power for the sheave 2 of the stringing, and the motors 5 drive the sheave 2 to rotate, and then the cables in the sheave 2 are driven forward. Of the two single-wheel automatic transmission stringing devices, one is only responsible for incoming wires, and the other is only responsible for outgoing wires, so that during the cable erection process, the operation is guaranteed to be stable. In addition, when the cable rotates with the sheave 2, it will not come out of the sheave 2 or jump due to the pressing effect of the roller 4.

Claims (2)

1. series connection double grooved pulley is from gear frame line apparatus, and it comprises support (1) and be arranged on the link plate (3) on support (1) top, and sheave (2) is established in support (1) lower end; Sheave (2) upper end connects roller (4) by support (1) axle, on support (1) corresponding to sheave (2) side, establish motor (5), motor (5) provides power to sheave (2), forms single-wheel automatic transmission wire-binding device; It is characterized in that: described series connection double grooved pulley is connected in series two single-wheel automatic transmission wire-binding devices from gear frame line apparatus by connector (6) and forms.

2. series connection double grooved pulley as claimed in claim 1, from gear frame line apparatus, is characterized in that: described connector (6) is cross bar.

Images