CN104993419B - Transmission line of electricity payingoff construction guide rope point rope technique - Google Patents

Abstract

The present invention relates to a technique of separating guide ropes for the setting-out construction of transmission lines. The specific construction techniques are as follows: (1) Arrange iron towers according to the line-dividing construction technique; (2) The setting-out block is lowered, and the traction board is gradually inclined from the original vertical hoisting position; ⑶The traction moves forward, the hook at the lower end of the pay-off block is opened, the pay-off block is separated from the traction pallet, and the traction equipment is started to make the traction rope pull the traction pallet to move laterally; ⑷Until the traction pallet reaches the next iron tower position, repeat the above steps from ⑴ to Step ⑶, the construction is carried out step by step, and the guide ropes are automatically separated and placed in the corresponding cable installation positions. The rope separation process of the guide rope for the laying-out construction of the transmission line in the present invention changes the traditional laying-out process, and changes the original rope separation from the traction rope to a light, heat-resistant insulating rope for separation, and then replaces it with traction ropes for conducting wires. Traction reduces the number of equipment used in construction such as tension pay-off machines and winch mills, simplifies construction steps, reduces construction costs, and improves construction efficiency.

Description

Separation Technology of Guide Rope for Transmission Line Laying-out Construction

technical field

The invention belongs to the field of electric power construction, and relates to high-altitude wire-laying technology between iron towers, in particular to a guide rope separation process for wire-laying construction of power transmission lines.

Background technique

At present, the construction technology of transmission lines is laying and laying out traction ropes. During the construction process, it is very easy to be interfered by external cooperation. Then, one pull and four belt traction ropes are carried out. Both the wire machine and the step-by-step iron tower need more than 2 winching mills.

After searching, the following patent documents in similar technical fields were found:

A large cross-section wire "one pull two" construction technology (CN102593759A), characterized in that it includes the following steps: 1. Construction preparation: conduct crimping tests on wires and ground wires, set tension fields and traction fields, and clean up the construction Channel; ②, Suspension block; ③, Spanning construction; ④, Tension setting out, laying out the ground wire, wire, and anchoring in time; ⑤, Crimp wire, tighten the wire, observe the slack, hang the wire, and complete the entire construction. The invention ensures that each sub-conductor in the same phase has the same pay-off tension, and ensures the construction quality of the stringing construction; moreover, it optimizes the suspension of the pay-off block, the deployment of the wire guide rope and the traction rope, the deployment of the wire, the tightening of the wire, and the installation of accessories. The technology can effectively improve the construction efficiency of tension setting-out; reduce the waste of manpower and time, and require less equipment, occupy a small area, and have high socio-economic benefits.

A pay-off tension machine control device (CN203269220U), which has a remote control box for controlling the operation of the pay-off tension machine. Only one machine is needed to control multiple machines at the same time, reducing personnel costs; at the same time, single-person operation avoids the difficulties and troubles caused by the cooperation of multiple people. There is a long distance between the remote control box and the pay-off tension machine. On the one hand, it can avoid the huge noise and a lot of dust generated by the pay-off tension machine, and avoid the health of the operator from being affected; on the other hand, the operator can choose an appropriate distance. Controlling, the line of sight will not be hindered by the pay-off tension machine, and it is more convenient for the operator to observe and control the pay-off construction site.

Comparative analysis shows that the technical problems to be solved and the technical means adopted are quite different between the prior art disclosed above and the technical content claimed in this application.

Contents of the invention

The purpose of the present invention is to overcome the disadvantages of the prior art, and provide a simple structure, reasonable design, convenient use, and reliable process of the guide rope separation process for the construction of power transmission lines.

The present invention solves its technical problem and realizes by taking the following technical solutions:

A technique for separating the guide ropes in the setting-out construction of transmission lines, characterized in that all the construction is carried out at high altitude, that is, the line-dividing construction is carried out on the tower, and the specific construction process is as follows:

⑴The iron tower is arranged according to the branch line construction process. A lever block is installed in the middle of the upper end of the iron tower 1, and a hoisting block is hoisted at the outer edge of the upper end of the iron tower. The hand block is connected to a pay-off block through the lifting block. The pay-off tackle moves up and down;

A traction rope is worn on the pay-off block, one end of the traction rope is connected to the front end of a traction walking board, and the other end of the traction rope extends in the direction of the cable to be laid and is connected to the traction equipment for traction and take-up; traction The rear end of the walking board is evenly spaced to connect multiple guide ropes,

A plurality of sky blocks are installed at intervals on the corresponding iron tower below the pay-off block. The sky blocks are used to limit the support of the guide rope. The sky blocks correspond to the guide ropes one by one. The number of sky blocks can be increased or decreased according to the construction needs;

The guide rope extends to the ground and is connected to the cable. The guide rope pulls the cable forward, and the cable is pulled up to the iron tower and limited on the sky block;

⑵The pay-off block is lowered, and the hand block is running to loosen the pay-off block, and the pay-off block is lowered until the height of the traction running board is lower than the upward block. At this time, the weight of the guide rope is pressed on the upward block. Pull the traction board, the traction board gradually tilts from the original vertical hoisting position, and the pay-off block maintains a constant speed and stability during the descent process;

⑶ Pulling forward, the hook at the lower end of the pay-off block is opened, the pay-off block is separated from the traction pallet, and the traction equipment is started to make the traction rope pull the traction pallet to move laterally;

The traction equipment continues to work, the traction rope drives the traction board, and the traction board drives multiple guide lines to move synchronously to the next iron tower in the direction of construction;

⑷The traction board reaches the position of the next iron tower, and the pay-off block on the next iron tower is hooked to the front end of the traction board and then rises to the initial position of step 1. Repeat the above steps 1 to 3, and carry out construction step by step. The guide ropes are automatically separated and placed in the corresponding cable installation positions, and the construction is carried out continuously at high altitude.

Moreover, in the described process, light-duty guide ropes made of light-weight, heat-resistant insulating materials are used for traction and movement of the boards, and the guide ropes are separately customized into different colors.

Moreover, the traction walking board is connected with four guide ropes, and the guide ropes are light, heat-resistant and insulating guide ropes.

Advantage and positive effect of the present invention are:

1. This process is combined with the opening and closing process of the pay-off block, so that the guide rope can be separated into each pay-off block while avoiding the use of machinery.

2. All the construction of this process is carried out at high altitude, which greatly avoids the interference of external cooperation and greatly shortens the construction period of setting out.

3. This process saves the number of large machines and the number of machines used for each iron tower, and the effect is extremely obvious.

4. This process saves the investment of construction workers working at heights, reduces the risk of working at heights, and enhances the safety of construction workers.

5. Due to the light weight, heat-resistant and insulated guide rope used in this process, the degree of safety hazards such as personal safety and accidental disconnection during the construction process is greatly reduced.

6. The rope separation process of the guide rope for the laying-out construction of the transmission line of the present invention has changed the traditional laying-out process, changing the original rope separation from the traction rope to a light, heat-resistant insulating rope for separation, and then replacing it with traction ropes Conduct wire traction, reduce the number of equipment used in construction such as tension pay-off machines and winch mills, simplify construction steps, reduce construction costs, and improve construction efficiency.

Description of drawings

Fig. 1 is construction step one of the present invention;

Fig. 2 is construction step two of the present invention;

Fig. 3 is the third construction step of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and through specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

A technique for separating the guide ropes in the setting-out construction of transmission lines, the specific construction techniques are as follows:

Construction step 1: Arrange the iron tower according to the construction process of the sub-line, see attached drawing 1, a lever block 2 is installed in the middle of the upper end of the iron tower 1, and a lifting block 3 is hoisted on the outer edge of the upper end of the iron tower, and the lever block passes through the lifting block Connected with a pay-off tackle 4, the lever block controls the up and down movement of the pay-off tackle;

A traction rope 5 is installed on the pay-off block, and one end of the traction rope is connected to the front end of a traction pallet 6. In this process, the traction pallet adopts a light guide rope made of light-weight, heat-resistant insulating material to pull the pallet , the other end of the traction rope extends to the direction of the cable to be laid and is connected to a traction device (not shown) for traction take-up;

The rear end of the traction board is connected with multiple guide ropes evenly distributed at intervals. In the common construction process in this embodiment, four guide ropes are connected. The guide ropes are light, heat-resistant and insulated guide ropes. The specifications are calculated according to the actual construction requirements,

In order to easily distinguish the phase sequence, the guide ropes are separately customized into different colors, which can effectively improve the construction efficiency and avoid wiring errors.

A plurality of sky blocks 7 are installed at intervals on the corresponding iron tower below the pay-off block. The sky blocks are used to limit the support of the guide rope. The sky blocks correspond to the guide ropes one by one. The number of sky blocks can be increased or decreased according to construction needs. ;

The guide rope extends to the ground and is connected to the cable. The guide rope pulls the cable forward, and the cable is pulled up to the iron tower and limited on the sky block;

Construction step 2, the pay-off block is lowered, see attached drawing 2, the hand block is running to loosen the pay-off block, and the pay-off block is lowered until the height of the traction board is lower than the sky block. At this time, the weight of the guide rope is on On the sky block, the guide rope pulls the traction board horizontally, the traction board gradually tilts from the original vertical hoisting position, and the pay-off block maintains a constant speed and stability during its descent;

Construction step 3, traction forward, see attached drawing 3, the hook at the lower end of the pay-off block is opened, the pay-off block is separated from the traction pallet, and the traction equipment is started to make the traction rope pull the traction pallet to move laterally;

The traction equipment continues to work, the traction rope drives the traction board, and the traction board drives multiple guide lines to move synchronously to the next iron tower in the direction of construction;

Until the traction board reaches the position of the next iron tower, the pay-off block on the next tower is hooked to the front end of the traction board and then rises to the initial position of step 1. Repeat the above steps 1 to 3, and carry out construction step by step. The ropes are automatically separated and placed in the corresponding cable installation positions, and the construction is carried out continuously at high altitude, which significantly improves the construction efficiency.

The description of the present invention is only reflected in the change of the position and quantity of the traction rope, but such a change is a technical innovation that overcomes the traditional construction technology of the industry for many years, and its effect is very significant, suitable for wide application in this field .

Although the embodiments and drawings of the present invention are disclosed for the purpose of illustration, those skilled in the art can understand that various replacements, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims Therefore, the scope of the present invention is not limited to what is disclosed in the embodiments and drawings.

Claims (3)

1. A transmission line setting-out construction guide rope splitting process is characterized in that: the concrete construction process is as follows: ⑴Arranging the iron tower: A lever block is installed in the middle of the upper end of the iron tower, and a lifting block is hoisted on the outer edge of the upper end of the iron tower. move; A traction rope is worn on the pay-off block, one end of the traction rope is connected to the front end of a traction walking board, and the other end of the traction rope extends in the direction of the cable to be laid and is connected to the traction equipment for traction and take-up; traction The rear end of the walking board is evenly spaced to connect multiple guide ropes, A plurality of sky blocks are installed at intervals on the corresponding iron tower below the pay-off block. The sky blocks are used to limit the support of the guide rope, and the sky blocks correspond to the guide ropes one by one. The guide rope extends to the ground and is connected to the cable. The guide rope pulls the cable forward, and the cable is pulled up to the iron tower and limited on the sky block; ⑵The pay-off block descends: the hand block operates to release the pay-off block downward, and the pay-off block descends until the height of the traction running board is lower than the upward block. At this time, the weight of the guide rope is pressed on the upward block, and the guide rope is horizontal Pull the traction board, the traction board gradually tilts from the original vertical hoisting position, and the pay-off block maintains a constant speed and stability during the descent process; (3) Traction forward: the hook at the lower end of the pay-off block is opened, the pay-off block is separated from the traction pallet, and the traction equipment is started to make the traction rope pull the traction pallet to move laterally; The traction equipment continues to work, the traction rope drives the traction board, and the traction board drives multiple guide ropes to move synchronously to the next iron tower in the direction of construction; ⑷The traction board reaches the position of the next iron tower, and the pay-off block on the next iron tower is hooked to the front end of the traction board and then rises to the initial position of step 1. Repeat the above steps 1 to 3, and carry out construction step by step. The guide ropes are automatically separated and placed in the corresponding cable installation positions, and the construction is carried out continuously at high altitude. 2. According to claim 1, the guide rope separation process of the transmission line setting-out construction is characterized in that: in the process, the traction board adopts a light-weight guide rope made of a light-weight, heat-resistant insulating material to draw the board , The guide ropes are customized into different colors. 3. According to claim 1, the guide rope separation process of the transmission line setting-out construction is characterized in that: the traction running board is connected with four guide ropes, and the guide ropes are light, heat-resistant and insulating guide ropes.