CN107558793B - A method for lifting and installing multi-layer cross-arms on overhead line poles and special tools thereof - Google Patents

Abstract

The invention discloses a method for lifting and installing a multi-layer cross arm on an overhead line electric pole and a special tool thereof. The method includes the following steps: hanging and installing a fixed pulley on the cross arm at the top of the electric pole, and bypassing the suspension rope on the fixed pulley ; Assemble the cross-arm on the ground and connect only one bolt; use a special connecting rope to connect the two ends of the two cross-arms respectively; The first cross-arm is pushed in from one side of the pole and fixedly clamped on the pole; put the porcelain pieces and hardware into the special storage box, and lift the special storage box to the cross-arm by pulling down the sling and the special connecting rope place, just install the porcelain pieces and hardware on the cross arm. The beneficial effect is that the cross-arm can be lifted without the participation of the operators on the pole, and the installation of the two cross-arms can be completed by one person on the pole when the cross-arm has been lifted in place, which reduces the workload and labor of the operators on the pole. Labor intensity, saving working time and improving working efficiency.

Description

A method for lifting and installing multi-layer cross-arms on overhead line poles and special tools thereof

technical field

The invention belongs to the field of electric power construction, and in particular relates to a method for lifting and installing multi-layer cross-arms on poles of overhead lines and a special tool thereof.

Background technique

At present, when power supply enterprises install multi-layer crossarms on overhead line poles, it is generally used that operators on the poles use ropes to pull up the crossarms vertically and transfer materials, power fittings, tools, etc., grounding wires, insulating gloves, etc. , electroscope pen and other safety tools are carried by the climber. The problems of this operation method are as follows:

1. When pulling up the cross arm, not only the work intensity is high, but the cross arm is easy to fall, and it is easy to overload the foot buckle, which may damage the foot buckle and cause the safety hazard of the slide bar;

2. When installing the cross-arm, two people need to cooperate with each other to clamp the two cross-arms on both sides of the pole for fixing. It is inconvenient for two people to operate on the pole;

3. Operators must carry tools on their bodies before climbing the pole tower, before doing measures such as hanging ground wires and electric tests, which increases the burden on the pole climbing personnel.

4. When workers transfer tools and materials to the tower, they can only transfer one tool or a small amount of material at a time. If things go on like this, it will increase the working time and disperse the attention of the workers on the tower. Throw it down and place it casually, there is a potential safety hazard that the high-altitude material tool will fall and hurt people.

Contents of the invention

The technical problem to be solved by the present invention is to provide a method for lifting and installing multi-layer cross-arms on overhead line poles and its special tools. Undertake the installation work, improve the work efficiency.

Technical scheme of the present invention is as follows:

A method for lifting and installing multi-layer cross-arms on overhead line poles, comprising the following steps:

1. Hang and install the fixed pulley on the cross arm at the top of the pole, and bypass the suspension rope on the fixed pulley;

2. Assemble the cross arm on the ground below the pole where the cross arm is to be installed; when assembling the cross arm, only connect one bolt between the two cross arms;

3. Use the cross-arm connecting bolts at the lower end of the special connecting rope to pass through the vertical bottle mounting holes at both ends of the two cross-arms and fasten them;

4. Hang the metal buckle on the upper end of the special connecting rope on the hook at one end of the sling, and the ground construction personnel pull down the other end of the sling, and lift the two cross-arms horizontally to the cross-arm on the pole for installation through the sling. Location;

5. The operator on the pole pushes the two cross-arms from one side of the pole so that the pole is clamped between the two cross-arms, and then another bolt is inserted to fix and clamp the two cross-arms on the pole;

6. Put the porcelain pieces and goldware to be installed on the cross arm into the special storage box, then put down the special connecting rope, and hang the four hooks at the lower end of the special connecting rope on the hanging hooks at the four corners of the top surface of the special storage box respectively. On the ring, the special storage box is hoisted to the cross arm on the pole by pulling down the sling, and the operator on the pole installs the porcelain and hardware in the special storage box on the cross arm.

7. Repeat steps 2 to 6 above until all the multi-layer cross-arms are lifted and installed.

A special tool used in the method of lifting and installing multi-layer cross-arms on overhead line poles, including special connecting ropes and special storage boxes,

The special storage box includes a box body with an open upper end, and a circle of tool hangers is arranged on the upper end of the box body along its outer edge for hanging working tools; Special connecting ropes for connection; tool hooks are provided at the four corners of the lower end of the box for hanging working tools;

The special connecting ropes include four connecting ropes, one end of the four connecting ropes is wound and merged into one strand and connected with a metal buckle, and the other ends of the four connecting ropes are respectively connected with hooks and cross-arm connecting bolts for connecting the special storage Boxes and crossarms.

As a further preference, the box body is a cuboid in shape and is composed of a cuboid frame and box plates respectively fixed on the bottom surface and surroundings of the cuboid frame.

As a further preference, the tool hanger includes a rectangular frame welded by steel bars, the rectangular frame is fixed on the outer periphery of the upper end of the box, and a gap of 30-50 mm is provided between each steel bar on the rectangular frame and the outer edge of the box .

As a further preference, a plurality of horizontal bars are evenly distributed along the longitudinal direction of the rectangular frame between the steel bars on each long side and the box, so as to separate the suspended working tools.

The beneficial effects of the present invention are:

1. The cross-arms that need to be installed can be lifted without the participation of operators on the poles. The cross-arms that have been lifted in place can be installed on the pole by one person, which reduces the work of operators on the poles The weight and labor intensity are reduced, the cross arm will not fall, which saves working time and improves working efficiency. It avoids the risk of the crossarm being easily dropped by the operator on the pole in the traditional operation method.

2. All the porcelain pieces and hardware required on the cross arm can be sent to the electric pole at one time through the special storage box, which improves the operation safety and efficiency.

Description of drawings

Fig. 1 is a schematic structural view of a special storage box in the present invention.

FIG. 2 is a top view of FIG. 1 .

Fig. 3 is a structural schematic diagram of the special connecting rope in the present invention.

In the figure: box body 1, tool hook 2, tool hanger 3, hanging ring 4, cross bar 5, connecting rope 6, metal buckle 7, cross arm connecting bolt 8, hook 9.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

The present invention relates to a method for lifting and installing multi-layer cross-arms on overhead line poles, which includes the following steps:

1. Hang and install a fixed pulley on the cross arm at the top of the pole, and bypass the sling on the fixed pulley;

2. Assemble the cross arm on the ground below the pole where the cross arm is to be installed; when assembling the cross arm, only connect one bolt between the two cross arms;

3. Use the cross-arm connecting bolts 8 at the lower end of the special connecting rope to respectively pass through the vertical bottle mounting holes at both ends of the two cross-arms and tighten them with nuts;

4. Hang the metal buckle 7 on the upper end of the special connecting rope on the hook at one end of the sling, and the ground construction personnel pull down the other end of the sling, and lift the two cross arms horizontally to the cross arm on the pole through the sling. installation location;

5. The operator on the pole pushes the two cross-arms from one side of the pole, so that the pole is clamped between the two cross-arms, and then another bolt is inserted to fix the two cross-arms. on the pole;

6. Put the porcelain pieces and goldware to be installed on the cross arm into the special storage box, then put down the special connecting rope, and hang the four hooks 9 at the lower end of the special connecting rope on the four corners of the top surface of the special storage box respectively. On the hanging ring 4, the special storage box is hoisted to the cross arm on the electric pole by pulling down the sling, and the operator on the electric pole installs the porcelain and hardware in the special storage box on the cross arm. .

7. Repeat the above steps until all the multi-layer cross arms are lifted and installed.

The present invention relates to a special tool used in a method for lifting and installing multi-layer cross-arms on overhead line poles, including special connecting ropes and special storage boxes;

The special storage box includes a box body 1 with an open upper end. The box body 1 has a rectangular parallelepiped shape and is composed of a rectangular parallelepiped frame and box plates respectively fixed on the bottom surface and surrounding sides of the rectangular parallelepiped frame. On the upper end of the box body 1, there is a circle of tool hanger 3 along its outer edge, which is used to hang working tools; at the four corners of the top surface of the box body 1, there are respectively provided with hanging rings 4, which are used to connect special connecting ropes; at the lower end of the box body 1 The four corners are respectively provided with tool hooks 2 for hanging operation tools.

The tool hanger 3 includes a rectangular frame welded by steel bars, which is fixed on the outer periphery of the upper end of the box body 1, and a gap of 30-50 mm is provided between each steel bar on the rectangular frame and the outer edge of the box body 1 . A plurality of cross bars 5 are evenly distributed and welded along the longitudinal direction between the steel bars on each long side and the box body 1 on the rectangular frame, so as to separate the suspended working tools.

The special connecting ropes include four connecting ropes 6, one end of the four connecting ropes 6 is wound and merged into one strand and is connected with a metal buckle 7, and the other ends of the four connecting ropes 6 are respectively connected with a hook 9 and a cross arm connecting bolt 8, For connecting the dedicated storage box and the cross arm separately.

Although the embodiment of the present invention has been disclosed as above, it is not limited to the use listed in the specification and implementation, it can be applied to various fields suitable for the present invention, and it can be easily understood by those skilled in the art Therefore, the invention is not limited to the specific details and examples shown and described herein without departing from the general concept defined by the claims and their equivalents.

Claims (4)

1. A method for lifting and installing multi-layer cross-arms on overhead line poles, characterized in that the steps are as follows: 1) Hang and install the fixed pulley on the cross arm at the top of the pole, and bypass the suspension rope on the fixed pulley; 2) Assemble the cross arm on the ground below the pole where the cross arm is to be installed; when assembling the cross arm, only connect one bolt between the two cross arms; 3) Use the cross-arm connecting bolts at the lower end of the special connecting rope to respectively pass through the vertical bottle mounting holes at the two ends of the two cross-arms and fasten them; It is connected with a metal buckle, and the other ends of the four connecting ropes are respectively connected with hooks and cross-arm connecting bolts, which are used to connect the special storage box and the cross-arm respectively; 4) Hang the metal buckle at the upper end of the special connecting rope on the hook at one end of the sling, and the ground construction personnel pull down the other end of the sling, and lift the two cross arms horizontally to the cross arm on the pole for installation through the sling. Location; 5) The operator on the pole pushes the two cross-arms from one side of the pole, so that the pole is clamped between the two cross-arms, and then another bolt is inserted to fix and clamp the two cross-arms on the pole; 6) Put the porcelain pieces and goldware to be installed on the cross arm into the special storage box, then put down the special connecting rope, and hang the four hooks at the lower end of the special connecting rope on the hanging hooks at the four corners of the top surface of the special storage box respectively. On the ring, the special storage box is hoisted to the cross-arm on the pole by pulling down the sling, and the workers on the pole install the porcelain and hardware in the special storage box on the cross-arm; The special storage box includes a box body with an open upper end, and a circle of tool hangers is arranged on the upper end of the box body along its outer edge for hanging working tools; four corners of the top surface of the box body are respectively provided with hanging rings for Special connecting ropes for connection; tool hooks are provided at the four corners of the lower end of the box for hanging working tools; 7) Repeat the above steps 2) to 6) until all the multi-layer cross arms are lifted and installed. 2. A method for lifting and installing multi-layer cross-arms on overhead line poles according to claim 1, characterized in that: the shape of the box is cuboid, and a cuboid frame is fixed on the bottom surface and surroundings of the cuboid frame respectively box board composition. 3. A method for lifting and installing multi-layer cross-arms on overhead line poles according to claim 1, wherein the tool hanger includes a rectangular frame welded by steel bars, and the rectangular frame is fixed on a box Around the upper end of the body, there is a gap of 30-50mm between each steel bar on the rectangular frame and the outer edge of the box. 4. A method for lifting and installing multi-layer cross-arms on overhead line poles according to claim 3, characterized in that: on the rectangular frame, between the steel bars on each long side and the box body, there are longitudinally evenly distributed Multiple cross bars to separate suspended work tools.