CN103243963B - A kind of suspended holding pole segmental hoisting steel pipe pole method - Google Patents

Abstract

The present invention discloses a kind of suspended holding pole segmental hoisting steel pipe pole method, comprises the steps: 1) erect pole on ground; 2) the first steel pipe is erect; 3) suspended holding pole is promoted; 4) lifting residue steel pipe and the steel pipe that cross-arm is housed; 5) suspended holding pole is removed.The invention provides a kind of suspended holding pole segmental hoisting steel pipe pole method, it adopts the construction tool of small portable, Appropriate application space, efficiently solve transport routes difficulty, the problem that fabricating yard is limited, substantially increases installation effectiveness, and reduces installation cost while guarantee installation quality.

Description

A method for segmentally hoisting steel pipe poles by suspension holding poles

technical field

The invention relates to a method for installing a steel pipe pole, in particular to a method for segmentally hoisting a steel pipe pole by suspending the pole.

Background technique

The transmission line is the channel for transmitting electric energy from the power supply end (or substation) to the power receiving end. There are three forms: iron tower line, steel pipe pole (tower) line and buried cable line. Among them, iron tower lines are widely used because of their low cost, but they occupy too much area and are gradually rejected by the government; buried cable lines are expensive and are generally used in urban power grids. The steel pipe pole line occupies a small area, with a slightly dialed shape and a circular cross-section. It is stacked on the side of the road, which has a unique charm with the environmental greening, and has attracted social attention.

The steel pipe poles of transmission lines also have shortcomings. Generally, the height of each base tower is more than 30m, and it is formed by connecting sections of 6m-12m. If it cannot be reached, if temporary roads are built for transportation and erection of towers, the project cost will be increased, the ground will be destroyed, and crops will be damaged, which will become a bottleneck in the implementation of the project.

Contents of the invention

In order to solve the above problems, the object of the present invention is to provide a method for hoisting steel pipe poles by suspension holding poles in sections, which adopts small and portable construction tools, makes reasonable use of space, and effectively solves the problems of difficult transportation roads and limited installation sites. While ensuring the installation quality, the installation efficiency is greatly improved, and the installation cost is reduced.

The present invention is to achieve above-mentioned purpose, the present invention adopts following technical scheme:

A method for segmentally hoisting steel pipe poles by suspension holding poles, comprising the following steps:

1) Erect the pole on the ground

First install the motorized winch on the ground, and then install the traction rope on the motorized winch, and the other end of the traction rope is installed on the top of the pole; when the pole forms an inclination angle with the ground, start the motorized winch, and use the traction rope to make the The pole is erected; then remove the traction rope installed on the top of the pole;

2) erect the first steel pipe

When the pole is erected, a single-wheel block is installed on the top of the pole, and then a steering pulley is installed at the bottom of the pole. The traction rope installed on the motorized winch is connected to the single-wheel block through the steering pulley; and then on the top of the first steel pipe Install the lifting ring screw, and connect the lifting ring screw to the pulley hook on the single-wheel pulley block; then start the motor winch, and make the first steel pipe stand upright through the traction rope; then fix the erected first steel pipe to the ground, and finally disassemble and install it on the The traction rope on the block block;

3) Raise the suspension pole

After the first steel pipe is fixed, the traction rope is separated from the single-wheel block group, and then the first pulley is installed on the top of the first steel pipe, and then the second pulley is installed on the bottom of the first steel pipe; then the traction rope installed on the motor winch After passing through the second pulley and the first pulley in turn, it is connected to the bottom end of the holding pole; then start the motor winch, and use the traction rope to make the holding pole leave the bottom surface. stop the traction at m; then fix the pole with the first steel pipe with a wire rope; then dismantle the traction rope installed at the bottom of the pole;

4) Lift the remaining steel pipes and steel pipes with cross arms

After the pole is fixed to the first steel pipe, follow the step 2) to hoist the second steel pipe, and the traction rope installed on the motor winch is connected to the single-wheel pulley block through the second pulley; when the second steel pipe is aligned with the first steel pipe Fix by bolts; then step 3) and step 2) to hoist the steel pipes to be installed and the steel pipes with cross arms in sequence;

5) Remove the suspension pole

After the steel pipe with cross-arm is hoisted, remove the traction rope installed on the single-wheel pulley group; The second pulley and the single-wheel pulley are connected to the bottom of the pole in turn; at the same time, a wire rope sleeve is sleeved between the pole and the steel pipe, and the motorized winch lowers the pole by loosening the traction rope; the wire rope descends accordingly; The pole is lowered to the ground, the steel wire rope cover is removed, and the pole is put down on the ground to complete the hoisting process of the entire steel pipe pole.

A retractor is installed on the ground, and then a wavewind wire rope is installed on the retractor, and one end of the wavewind wire rope is installed on the top of the pole; when the pole rises, the wavewind wire rope is in a relaxed state, and when the pole is still The wave and wind wire rope is in a tightened state; and the horizontal projection angle of the wave and wind wire rope is 45°, and the angle between the wave and wind wire rope and the ground is 20-30°.

A sleeper is installed at the bottom end of the pole.

Two sets of single-wheel tackles are installed on the top of the pole, and the pulley hooks of the two sets of single-wheel tackles are respectively connected to the two ring screws on the top of the first steel pipe; at the same time, a pull rope is installed on the first steel pipe, and the pull rope controls The distance between the first steel pipe and the pole during the ascent process; a stay rope is installed on the second steel pipe, and the stay rope controls the distance between the second steel pipe and the pole during the ascent process; There is a stay rope, and the stay rope controls the distance and rotation between the steel pipe with the cross arm and the pole during the ascent process.

The beneficial effects of the present invention are as follows: the present invention provides a method for segmentally hoisting steel pipe poles by suspension holding poles, which adopts small and portable construction tools, rationally utilizes the space, and effectively solves the problems of difficult transportation roads and limited installation sites. While the installation quality is greatly improved, the installation efficiency is greatly improved, and the installation cost is reduced.

Description of drawings

Fig. 1 is the installation diagram of erecting pole;

Fig. 2 is the installation sketch map of erecting the first steel pipe;

Figure 3 is a schematic diagram of the installation of the lifting suspension pole;

Fig. 4 is the installation schematic diagram of hoisting the second steel pipe;

Fig. 5 is the installation sketch map of hoisting cross-arm steel pipe;

Figure 6 is an installation diagram for removing the suspension pole.

detailed description

Example 1

As shown in Figure 1, a method for hoisting steel pipe poles by suspension holding a pole in sections provided by this embodiment, first installs a motorized winch 1 on the ground, then installs a traction rope 3 on the motorized winch 1, and the other part of the traction rope 3 One end is installed on the top of the pole 2. The longitudinal direction of the pole 2 is in line with the traction rope 3, the motorized winch mill 1, and the concrete foundation of the steel pipe pole, and 4 waves and wind steel wire ropes 71 are arranged at the upper end of the pole 2, and wooden sleepers are placed on the lower end of the pole 2 on the ground. Then the manpower or the small pole lift the pole 2 above the ground by more than 1.5m, and then the traction rope 3 and the motor winch 1 make the pole 2 stand upright. During the above mechanical traction process, grasp whether the wave wind wire rope 71 is not tight or loose, tighten the wave wind wire rope 71 after the holding pole 2 stands upright. A sleeper 8 is installed on the bottom end of the pole 2 . Sleeper 8 has a distance between the root of the pole and the steel pipe rod wall in the whole installation, if there is no lining of sleeper 8, the pole 2 is inclined.

The 4 waves and wind wire ropes 71 correspond to the 4 groups of loosening devices 7 on the ground respectively, and the waves and wind wire ropes 71 are controlled to be loosened by personnel. Four wave wind wire ropes 71 horizontal projection angles are 45 °, ground angles are 20 °-30 °.

As shown in FIG. 2 , the first steel pipe 4 is hoisted. Hang 2 groups of single wheel pulley blocks 21 on the upper end of the pole 2, and install 2 ring screws 41 on the flange eyelets on the upper end of the first steel pipe 4 to connect with the pulley hooks of the pulley blocks 21, and the traction rope 3 passes through the steering wheel The pulley 22 is connected with the motorized winch 1 . Through motor winch mill 1 operation, the first steel pipe 4 stands up slowly, and now the stay cord 9 on the first steel pipe 4 controls the distance between the steel pipe bar and the holding bar.

As shown in Figure 3, lift the suspension pole 2. After the first steel pipe 4 had been hoisted, the anchor bolts at the root of the first steel pipe 4 were tightened in time. A ring screw 41 is installed in the flange eye hole at the upper end of the first steel pipe 4, a first pulley 42 is suspended, a second pulley 43 is tied at the lower end of the first steel pipe 4, and the head of the traction wire rope 3 and the root of the pole 2 are fixed. , into the motorized winch 1 through the first pulley 42 and the second pulley 43 . Start winch mill 1, and hold bar 2 to rise slowly, and this moment wave wind steel wire rope 71 is in slack state, and hold bar and steel pipe bar to cover a steel rope ring 23 altogether. The holding pole 2 rises to overlap with the first steel pipe 4 at 2m, stop the traction, then fix the holding pole 2 on the ladder bracket of the first steel pipe 4 with a wire rope and tie it up, then moderately tighten the wave wind wire rope 71.

As shown in FIG. 4, the second steel pipe 5 is hoisted. Hang 2 groups of single-wheel blocks 21 at the upper end of the pole 2, and install 2 eyebolt screws 41 on the flange eyelets at the top of the second steel pipe 5, which are connected with the 21 pulley hooks of the wheel blocks, and the traction rope 3 passes through the first Two pulleys 43 are connected with motor winch 1. After the operation of the motor-driven winch mill 1, the second steel pipe 5 is slowly hoisted, and now the stay rope 9 at the end of the second steel pipe 5 controls the distance between the second steel pipe 5 and the pole 2. After the second steel pipe 5 is aligned with the first steel pipe 4 flange eyelets, after the bolts are tightened in time, the hoisting is completed.

The process of raising the suspended pole for the second time and hoisting the third steel pipe is the same as above.

As shown in Figure 5, the steel pipe 6 with the cross arm is hoisted. The steel pipe pole is equipped with a cross arm, and its overall length is longer than others, but its weight is lighter than others. Suspension point is at the nodal position of upper conductor cross-arm, wraps and binds with wire rope and does suspension point, then is connected with pulley block 21 pulley hooks, and traction rope 8 is connected with motor winch 1 through second pulley 43. Through the operation of the motor winch mill 1, the steel pipe 6 with the cross arm is hoisted slowly, and now the control wire rope 9 is respectively located at the end of the steel pipe rod and the end of the cross arm to control the horizontal distance and direction.

As shown in Figure 6, after the steel pipe 6 with the cross arm is hoisted, the traction rope 3 installed on the single-wheel block group 21 is disassembled; Car 61, the traction rope 3 installed on the motorized winch mill 1 is connected to the bottom of the pole 2 through the second pulley 43 and the single-wheel tackle 61 successively; The winch 1 lowers the holding pole 2 by loosening the traction rope 3; the steel wire rope cover 23 descends; when the holding pole 2 falls to the ground, remove the steel wire rope cover 23, put the holding pole 2 on the ground, and complete the hoisting process of the entire steel pipe pole .

The method for hoisting steel pipe poles by suspension holding poles in sections described in this embodiment adopts small and portable construction tools, makes reasonable use of space, and effectively solves the problems of difficult transportation roads and limited installation sites, and ensures the quality of installation at the same time The installation efficiency is greatly improved and the installation cost is reduced.

Claims (2)

1. A method for segmentally hoisting steel pipe rods by suspension holding rods, characterized in that it comprises the following steps: 1) Erect the pole on the ground First install the motorized twisted mill (1) on the ground, then install the traction rope (3) on the motorized twisted mill (1), and the other end of the traction rope (3) is installed on the top of the pole (2); when the pole ( 2) After forming an inclination angle with the ground, apply force through the traction rope (3) motorized winch (1), and the pole (2) is erected; then remove the traction rope (3) installed on the top of the pole (2); 2) erect the first steel pipe When the pole (2) is erected, a single-wheel block (21) is installed on the top of the pole (2), and then the steering pulley (22) is installed at the bottom of the pole (2), and the traction installed on the motorized winch (1) The rope (3) is connected with the single-wheel block (21) through the turning pulley (22); 21) connected to the pulley hook on the top; then start the motorized winch (1), and erect the first steel pipe (4) through the traction rope (3); then fix the erected first steel pipe (4) to the ground, and finally disassemble and install it The traction rope (3) on the single-wheel blocks (21); 3) Raise the suspension pole After the first steel pipe (4) is fixed, the traction rope (3) is separated from the single-wheel block group (21), and then the first pulley (42) is installed on the top of the first steel pipe (4), and then the first steel pipe (4) ) is installed at the bottom end of the second pulley (43); then the traction rope (3) installed on the motor winch (1) passes through the second pulley (43), the first pulley (42) and the pole (2) in sequence The bottom end is fixed; then start the motor winch (1), use the traction rope (3) to make the pole (2) leave the bottom surface, when the bottom end of the pole (2) coincides with the top of the first steel pipe (4) by 1.5m— Stop traction at 2.0m; then fix the pole (2) and the first steel pipe (4) with a wire rope; then remove the traction rope (3) installed at the bottom of the pole (2); 4) Lift the remaining steel pipes and steel pipes with cross arms After the pole (2) and the first steel pipe (4) are fixed, the second steel pipe (5) is hoisted according to the above step 2), and the traction rope (3) installed on the motor winch (1) passes through the second pulley (43) Connect with the single-wheel pulley group (21); when the second steel pipe (5) is aligned with the first steel pipe (4), fix it with bolts; then step 3) and step 2) hoist the steel pipes to be installed and the cross-arm steel pipe (6); 5) Remove the suspension pole After the steel pipe (6) with cross arm is hoisted, disassemble the traction rope (3) installed on the single-wheel tackle group (21); then install a One-wheel block (61), the traction rope (3) installed on the motor winch (1) is connected to the bottom of the holding bar (2) by the second pulley (43), one-wheel block (61) successively; A steel wire rope cover (23) is sleeved between the rod (2) and the steel pipe, and the motor winch (1) lowers the holding rod (2) by relaxing the traction rope (3), and the steel wire rope cover (23) descends accordingly; when holding the rod (2) Descend to the ground, remove the wire rope cover (23), put the holding pole (2) on the ground, and complete the hoisting process of the entire steel pipe pole; Two sets of single-wheel blocks (21) are installed on the top of the pole (2), and the pulley hooks of the two sets of single-wheel blocks (21) are respectively connected to the two ring screws (41) on the top of the first steel pipe (4). connection; at the same time, a stay rope (9) is installed on the first steel pipe (4), and the stay rope (9) controls the distance between the first steel pipe (4) and the pole (2) in the process of rising; the second steel pipe ( 5) A stay rope (9) is installed on the top, and the stay rope (9) controls the distance between the second steel pipe (5) and the holding pole (2) during the ascent process; Rope (9), stay rope (9) control the distance and the rotation of the steel pipe (6) that crossarm is housed with the pole (2) in the ascent process. 2. The method for segmentally hoisting steel pipe poles with suspended poles according to claim 1, characterized in that: a sleeper (8) is installed at the bottom of the poles (2).