Double swing arm pole equal-tension flexible attachment system

Abstract

The present invention relates to the technical field of transmission line construction, and in particular to a double swing arm gin pole equal tension flexible attachment system, which includes a steel structure frame. Inner sides of four corners of the steel structure frame are welded with two layers of iron pulleys up and down, and fixed pulley hanging points of two layers are welded on outer sides of the four corners. Tensions in all directions of this device are equal, and the waist ring is evenly stressed.

Description

Technical Field

[0001] The present invention relates to the technical field of transmission line construction, and in particular to an equal-tension flexible attachment system for a double swing arm gin pole. Background Art

[0002] The development strategic goal of the State Grid Corporation is to build a strong and intelligent power grid. As an important physical channel for power transmission, the transmission line has become the basic guarantee for building a strong and intelligent power grid and also occupies an important position in the composition of the intelligent power grid. With the construction of long-distance transmission lines, the strong and intelligent power grid has developed rapidly, and the scale of cross-regional power transmission has continued to grow relatively fast, and the benefits of optimizing the allocation of power resources on a larger scale have become increasingly apparent. Power transmission is playing an increasingly huge role in optimizing the allocation of energy resources and promoting the construction of large energy bases. From the perspective of optimizing the allocation of resources, as China's energy strategy moves westward, the distance between large energy bases and energy consumption centers is getting farther and farther, and the scale of energy transmission will also become larger and larger. On the basis of traditional transportation methods such as railways, highways, shipping, and pipelines, improving the power grid transportation capacity is also a way to relieve transportation pressure.

[0003] The floor-mounted double swing arm gin pole has the advantages of safety and reliability, reasonable stress structure, large construction operation radius, and convenient tower material positioning. Compared with the commonly used internal suspension gin pole for tower erection construction, it not only improves construction efficiency but also reduces safety risks. The following safety hazards exist in the use of the waist ring of the double swing arm gin pole: Under normal use conditions, 12 hand winches and 12 steel wire rope sleeves are required for the waist ring guy wires. There are many tools used, which is inconvenient for construction.

[0004] The waist ring guy wires are gradually stressed under the action of each hand winch. However, due to different operators, the forces on the hand winches will surely be different, resulting in different forces on each wire of the waist ring, which is not conducive to the stability of the waist ring. At the same time, if the force deviation in each direction is large and the waist ring is close to the standard section, since the standard section is made of angle steel material, it is extremely easy to cause the standard section to be bent under stress, and it will also affect the verticality of the overall gin pole. Summary of the Invention

[0005] The present invention provides an equal-tension flexible attachment system for a double swing arm gin pole, which solves the problems that 12 hand winches and 12 steel wire rope sleeves are currently used for the waist ring guy wires, with many tools used and inconvenient construction. It solves the problem that due to different operators, the forces on the hand winches will surely be different, resulting in different forces on each wire of the waist ring, which is not conducive to the stability of the waist ring. It solves the problem that when the force deviation in each direction is large and the waist ring is close to the standard section, since the standard section is made of angle steel material, it is extremely easy to cause the standard section to be bent under stress and it will also affect the verticality of the overall gin pole.

[0006] The specific technical solution is as follows: A double swing arm gin pole equal-tension flexible attachment system includes a steel structure frame. Inner sides of four corners of the steel structure frame are welded with upper and lower layers of iron pulleys, and outer sides of the four corners are welded with upper and lower layers of fixed pulley hanging points;

[0007] The upper and lower layers of fixed pulley hanging points on the outer sides of the four corners are two layers of ear plates, welded on the outer sides of the four corners of the frame, used for fixedly connecting the upper and lower layers of fixed pulleys through which steel wire ropes pass. Eight groups of fixed pulley blocks, one steel wire rope, one hand winch or traction device are used in cooperation to form an equal-tension flexible attachment system;

[0008] The rope passes through from one side of the traction device, enters from the upper left lower pulley of the lower layer, goes to the upper left upper pulley, turns to the upper left tower member hanging point pulley, then passes through the left upper and lower pulleys to the right upper and lower pulleys, after passing through the upper right tower member hanging point pulley, passes through the upper right upper pulley to the lower right lower pulley, turns to the lower right tower member hanging point pulley, then passes through the lower right upper pulley and returns to the lower left lower pulley, and the other end is fixed on the other side of the traction device, forming one rope and one traction device to control the steel structure frame.

[0009] Preferably, the steel structure frame is composed of left and right parts, which are connected by bolts in the middle.

[0010] Preferably, the upper and lower layers of iron pulleys are composed of a base and an iron ring pulley. The iron ring pulley is installed on a bracket. One end of the bracket is welded with a pin shaft, and after the pin shaft passes through the through hole in the middle of the base, it is locked by a snap ring.

[0011] Preferably, the iron ring pulley is provided with a V-shaped groove.

[0012] Compared with the prior art, the beneficial effects of the present invention are: ① For the waist ring of the equal-tension flexible attachment system, the tensions in all directions are equal and the waist ring is evenly stressed; ② With one rope and one traction device, it is more convenient for construction workers to install and operate, reducing the risk of working at heights; ③ The upper and lower layers of guiding steel wheels inside the waist ring make the lifting of the gin pole standard section more stable; ④ It has a broad market application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a structural schematic diagram of the present invention;

[0014] Figure 2 is a schematic diagram of the waist ring rope winding of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0015] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. can be used here to describe the spatial positional relationship of a device or feature shown in the figure with other devices or features. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is inverted, the device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientation of "above" and "below". The device can also be positioned or rotated in other different ways, such as 90 degrees or in other orientations, and corresponding interpretations should be made for the spatial relative descriptions used here.

[0016] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0017] As Figure 1 shown, a double-rocker gin pole equal-tension flexible attachment system includes a steel structure frame 1. Two layers of iron pulleys are welded inside the four corners of the steel structure frame. The two layers of iron ring pulleys at the four corners are of a structure where the iron ring pulley 2 is fixed to the base 3. The iron ring pulley is installed on a bracket. One end of the bracket is welded with a pin shaft. After the pin shaft passes through the through hole in the middle of the base, it is locked by a snap ring 4. The bracket can drive the iron ring pulley to rotate inside the base. The two layers of iron pulleys are integrally welded inside the frame. The two layers ensure the vertical movement trajectory of the standard section of the gin pole and prevent offset in a single layer.

[0018] Two layers of fixed pulley hanging points are welded outside the four corners. The two layers of fixed pulley hanging points outside the four corners are two layers of ear plates 5, which are welded outside the four corners of the frame and are used to fixedly connect the fixed pulleys 6 for threading the steel wire ropes in the upper and lower layers. Eight groups of fixed pulley blocks 7, a steel wire rope 8, and a hand winch or traction device 9 are used in cooperation to form an equal-tension flexible attachment system to ensure the consistency of the force magnitudes in all directions of the waist ring.

[0019] The basic frame of the steel structure is designed according to the design dimensions of the standard section, and a corresponding matching frame structure is designed, which is connected by bolts in the middle of the left and right halves.

[0020] As Figure 2As shown, the rope passes through from one side of the traction device, enters from the left lower upper pulley, reaches the left upper upper pulley, turns to the left upper tower member hanging point pulley, then passes through the left upper and lower pulleys to the right upper and lower pulleys, after passing through the right upper tower member hanging point pulley, passes through the right upper upper pulley to the right lower lower pulley, turns to the right lower tower member hanging point pulley, then passes through the right lower upper pulley and returns to the left lower lower pulley, and the other end is fixed on the other side of the traction device, forming a rope and a traction device to control the steel structure framework.

[0021] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A double rocker boom gin pole equal-tension flexible attachment system, characterized in that: It includes a steel structure framework, with two layers of iron pulleys welded to the inner sides of the four corners of the steel structure framework, and two layers of fixed pulley hanging points welded to the outer sides of the four corners. The two layers of fixed pulley hanging points on the outer sides of the four corners are two layers of ear plates, welded to the outer sides of the four corners of the framework, used for fixedly connecting the fixed pulleys for threading the steel wire ropes in the two layers, and eight groups of fixed pulley trolleys, a steel wire rope, and a traction device are used in cooperation to form an equal-tension flexible attachment system. The rope passes through from one side of the traction device, enters from the upper left lower layer trolley, goes to the upper left upper layer trolley, turns to the upper left tower member hanging point trolley, then passes through the left upper and lower layer trolleys to the right upper and lower layer trolleys, after passing through the upper right tower member hanging point trolley, passes through the upper right upper layer trolley to the lower right lower layer trolley, turns to the lower right tower member hanging point trolley, passes through the lower right upper layer trolley and returns to the lower left lower layer trolley, and the other end is fixed to the other side of the traction device, forming a rope and a traction device to control the steel structure framework.

2. The double swing arm gin pole equal-tension flexible attachment system according to claim 1, characterized in that, The steel structure framework is composed of two parts on the left and right, and is connected by bolts in the middle.

3. The double swing arm guyed mast equal-tension flexible attachment system according to claim 1, characterized in that, The two layers of iron pulleys are composed of a base and an iron ring wheel. The iron ring wheel is installed on a bracket, and a pin shaft is welded to one end of the bracket. The pin shaft passes through the through hole in the middle of the base and is locked by a snap ring.

4. The double-rocker boom gin pole equal-tension flexible attachment system according to claim 3, wherein, The iron ring wheel is provided with a V-shaped groove.

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