Eccentric one-traction-five traction plate

Abstract

The invention discloses an eccentric one-traction-five traction plate, and relates to the field of wire traction plates. In the construction of a ten-bundle conductor, the existing traction plates of one-traction-two and one-traction-four need to be pulled and unfolded for more than three times, the traction times are large, and the construction efficiency is low. The walking plate comprises a walking plate body, an auxiliary plate, a connecting nose and a heavy hammer, the auxiliary plate is provided with six pulling plates including the first plate, the second plate, the third plate, the fourth plate, the fifth plate and the sixth plate, the weight of the traction plate is balanced front and back with the fourth plate as the boundary, and the sum of the force arms of the fifth plate and the sixth plate of the pulling plates is equal to the sum of the force arms of the first plate, the second plate and the third plate. And the one-traction-five traction plate with an eccentric structure is formed. The traction plate can support tension pay-off of one traction steel wire rope and five wires, only needs two times of pay-off traction for 10 split wires, and greatly reduces the number of tools, reduces the number of traction times, improves the construction efficiency and reduces the construction cost compared with a traditional traction plate with one traction two and one traction four.

Description

Technical Field

[0001] The present invention relates to the field of wire traction plates, and particularly to an eccentric one-for-five traction plate. Background Art

[0002] At present, multi-split conductors are used in transmission lines with high voltage levels, among which four-split, six-split, and eight-split are relatively common. The specific construction method depends on the conductor split number and conductor rules. Common construction methods include "one-for-two", "one-for-four", etc. The common feature of these methods is to use one traction steel wire rope to simultaneously traction an even number of sub-conductors to achieve force balance.

[0003] For transmission lines in high altitude areas, increasing the conductor cross-sectional area is usually adopted to reduce corona discharge. In areas with harsh terrain, if the conductor cross-sectional area is increased, the construction cost and construction difficulty will increase. Increasing the conductor split number is also an alternative method to increase the conductor cross-sectional area in principle. Using ten-split conductors in high altitude areas can solve the above problems.

[0004] During the construction of ten-split conductors in high altitude areas, the existing "one-for-two" and "one-for-four" traction plates can be used for wire traction. However, the "one-for-two" and "one-for-four" traction plates are mainly used for the traction of two-split, four-split, six-split, or eight-split conductors. For ten-split conductors, it is necessary to adopt the method of "one-for-two" five times, or the method of two "one-for-four" plus one "one-for-two" for traction and spreading. The number of traction times is large and the construction efficiency is low. Summary of the Invention

[0005] The technical problem to be solved and the technical task proposed by the present invention are to improve and perfect the existing technical solution, and provide an eccentric one-for-five traction plate with the purpose of improving construction efficiency. For this reason, the present invention adopts the following technical solutions.

[0006] Eccentric one-drags-five traction plate, including a walking plate body, a secondary plate, a connecting nose and a weight. There are a total of 6 pulling plates on the secondary plate, arranged in parallel in the front-back direction. The 6 pulling plates are rotatably connected to the rear part of the walking plate body. The pulling plates are arranged from front to back as the first plate, the second plate, the third plate, the fourth plate, the fifth plate and the sixth plate. The weight of the traction plate is balanced before and after with the fourth plate as the boundary. The weight is connected to the right side of the fourth plate, and the connecting nose is provided on the left side of the fourth plate. And with the fourth plate as the boundary, the sum of the force arms of the fifth and sixth plates of the pulling plate is equal to the sum of the force arms of the first, second and third plates. Since the number of pulling plates on the front and rear sides of the fourth plate is not equal, but the sum of the force arms is equal, the product structure of the traction plate has the characteristic of asymmetry, and the center of gravity is offset, becoming an eccentric structure. When in use, the connecting nose is connected to the traction steel wire rope, and the first, second, third, fifth and sixth plates are connected to the guiding wires. The moment borne by the front side of the fourth plate is equal to the moment borne by the rear side, effectively realizing traction balance. Only one traction plate is needed to support the tension stringing of 1 traction steel wire rope and 5 wires. For 10 split conductors, only 2 times of stringing traction are required. Compared with the traditional "one-drags-two" and "one-drags-four" traction plates, the number of tools is greatly reduced, the traction times are reduced, the construction efficiency is improved, and the construction cost is reduced.

[0007] As a preferred technical means: There are a total of 8 pulling plate connection positions on the walking plate body. The fourth plate and the three pulling plate connection positions on the front side are all connected with pulling plates. The sixth and eighth pulling plate connection positions are connected with pulling plates. Each pulling plate connection position is arranged at equal intervals in the front-back direction. The force arm of the moment borne by the front side of the fourth plate is L + 2L + 3L = 6L, and the force arm of the moment borne by the rear side is 2L + 4L = 6L, where L is the center distance between the pulling plates, effectively realizing the equality of the sum of the front and rear force arms and achieving moment balance. The traction is stable and reliable.

[0008] As a preferred technical means: The traction plate is balanced in weight before and after with the fourth plate of the pulling plate as the boundary. Although the weight offset of the traction plate itself can be almost ignored compared to the force on the traction stringing, the reasonable optimization of the weight distribution of the traction plate itself can better achieve traction balance.

[0009] As a preferred technical means: Each of the pulling plate connection positions includes 2 hinged plates parallel to each other in the front-back direction. The left end of each pulling plate is arranged between the 2 hinged plates of the corresponding pulling plate connection position. Both the pulling plate and the hinged plate are provided with coaxial hinged holes penetrating through the front and back, and can be rotatably hinged through a hinge shaft. The hinged and rotatable connection has a firm structure and is stable and reliable.

[0010] As a preferred technical means: The hinge shaft is a long shaft, and the long shaft penetrates through the hinged holes of 8 pulling plate connection positions and 6 pulling plates for hinging. Compared with independent hinges, the installation structure is simpler by hinging through a single long shaft.

[0011] As a preferred technical means: the auxiliary plate includes the pulling plate and the pulling plate connecting member, and the pulling plate connecting member is fixedly connected between every two adjacent pulling plates, forming an integral auxiliary plate structure.

[0012] As a preferred technical means: the pulling plate connecting member includes a left plate, a right plate, a top plate and a bottom plate. The left plate, the right plate, the top plate and the bottom plate form a hollow closed rectangle, and the pulling plate connecting member is fixedly welded to the adjacent pulling plates. It is connected by welding the combination of 4 plates, with a firm structure, stable and reliable.

[0013] As a preferred technical means: the hinge plate and the connecting nose are both fixedly welded to the walking plate body. The integral structure is formed by directly welding the sheet metal. Compared with integral casting, the manufacturing is simpler and more convenient, saving the mold opening cost.

[0014] Beneficial effects: Solve the laying of split conductors. Compared with the traditional "one pulling two" and "one pulling four" methods, the number of tools is greatly reduced, the pulling times are reduced, the construction efficiency is improved, and the construction cost is reduced. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the present invention.

[0016] Figure 2 It is a schematic diagram of the auxiliary plate connection structure of the present invention.

[0017] In the figure: 1. walking plate body; 2. pulling plate; 3. connecting nose; 4. weight; 5. hinge plate; 6. hinge shaft; 7. pulling plate connecting member; 701. left plate; 702. right plate; 703. top plate; 704. bottom plate. Detailed Embodiments

[0018] The technical solutions of the present invention will be further described in detail below with reference to the accompanying drawings of the specification.

[0019] In the description of the present invention, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the disclosed embodiments of the present invention can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to the directions opposite or consistent with the direction of gravity.

[0020] As Figure 1 , 2 shown, the eccentric one-tow-five traction plate includes a walking plate body 1, a secondary plate, a connecting nose 3 and a weight 4. There are a total of 6 pulling plates 2 on the secondary plate, arranged in parallel in the front-back direction. The 6 pulling plates 2 are rotatably connected to the rear part of the walking plate body 1, and the connection positions of each pulling plate are arranged at equal intervals in the front-back direction. The pulling plates 2 are arranged from front to back as the first plate, the second plate, the third plate, the fourth plate, the fifth plate and the sixth plate. There are a total of 8 pulling plate connection positions on the walking plate body 1. The fourth plate and the three pulling plate connection positions on the front side are all connected with pulling plates 2, and the sixth and eighth pulling plate connection positions are connected with pulling plates 2. The weight of the traction plate is balanced before and after with the fourth plate as the boundary. The weight 4 is connected to the right side of the fourth plate, and the connecting nose 3 is provided on the left side of the fourth plate. And with the fourth plate as the boundary, the lever arm of the moment borne on the front side of the fourth plate is L + 2L + 3L = 6L, and the lever arm of the moment borne on the rear side is 2L + 4L = 6L, where L is the center distance between the pulling plates 2, so that the sum of the lever arms of the fifth and sixth plates of the pulling plate 2 is equal to the sum of the lever arms of the first, second and third plates.

[0021] To better achieve traction balance, the traction plate is balanced in weight before and after with the fourth plate of the pulling plate 2 as the boundary. Although the weight bias of the traction plate itself can be almost ignored compared to the force on the traction plate during traction deployment, the reasonable optimization of the weight distribution of the traction plate itself can better achieve traction balance.

[0022] To achieve a stable and reliable rotatable connection, each pulling plate connection position includes 2 hinged plates 5 arranged in parallel front and back. The left end of each pulling plate 2 is arranged between the 2 hinged plates 5 of the corresponding pulling plate connection position. Both the pulling plate 2 and the hinged plate 5 are provided with coaxial hinged holes penetrating front and back, and are rotatably hinged through a hinge shaft 6. The articulated rotatable connection has a firm structure, is stable and reliable.

[0023] To simplify the hinge structure, the hinge shaft 6 is a long shaft, and the long shaft penetrates through the hinge holes of 8 pulling plate connection positions and 6 pulling plates 2 for hinging. Compared with independent hinges, the installation structure is simpler by hinging with a single long shaft.

[0024] To achieve a firm and reliable secondary plate structure, the secondary plate includes pulling plates 2 and pulling plate connection members 7. A pulling plate connection member 7 is fixedly connected between every two adjacent pulling plates 2. The pulling plate connection member 7 includes a left plate 701, a right plate 702, a top plate 703 and a bottom plate 704. The left plate 701, the right plate 702, the top plate 703 and the bottom plate 704 form a hollow closed rectangle, and the pulling plate connection member 7 is fixedly welded to the adjacent pulling plates 2. The structure is firm and reliable through the combined welding connection of 4 plates.

[0025] In this example, both the articulated plate 5 and the connecting nose 3 are welded and fixed to the walking plate body 1. The integral structure is formed by directly welding the sheet metal. Compared with integral casting, the manufacturing is simpler and more convenient, saving the mold opening cost.

[0026] During use, the connecting nose 3 is connected to the traction steel wire rope through a rotary connector. The traction steel wire rope is dragged by a tractor. One rotary connector is connected to the rear end of each of the 5 pull plates 2 on both sides of the weight 4, and then each is connected to a sub-conductor through a rotary connector. The tractor drags the traction steel wire rope, and the traction steel wire rope simultaneously drags 5 conductors forward through the split one-for-five traction plate, realizing the tension stringing of "one-for-five". Only one traction plate is needed to support the tension stringing of 1 traction steel wire rope and 5 conductors. Compared with the traditional "one-for-two" and "one-for-four" methods, the number of tools is greatly reduced, the traction times of the ten-split conductors are reduced, the construction efficiency is improved, and the construction cost is reduced.

[0027] The above Figure 1 、 2 The eccentric one-for-five traction plate shown above is a specific embodiment of the present invention, which has already reflected the substantial features and progress of the present invention. Equivalent modifications can be made to its shape, structure, etc. under the inspiration of the present invention according to actual usage needs, and all are within the protection scope of this solution.

Claims

1. Eccentric type one-drawing-five traction plate, characterized in that: It includes a walking board body (1), a secondary board, a connecting nose (3) and a weight (4). There are a total of 6 pulling boards (2) provided on the secondary board, which are arranged in parallel in the front-rear direction. The 6 pulling boards (2) are rotatably connected to the rear part of the walking board body (1). The pulling boards (2) are arranged from front to back as the first board, the second board, the third board, the fourth board, the fifth board and the sixth board. The weight of the traction board is balanced before and after with the fourth board as the boundary. The right side of the fourth board is connected to the weight (4), and the connecting nose (3) is provided on the left side of the fourth board. And with the fourth board as the boundary, the sum of the lever arms of the fifth and sixth boards of the pulling board (2) is equal to the sum of the lever arms of the first, second and third boards.

2. The eccentric one-to-five traction plate according to claim 1, characterized in that: There are a total of 8 pulling board connection positions provided on the walking board body (1). The fourth board and the three pulling board connection positions on the front side are all connected with pulling boards (2). The sixth and eighth pulling board connection positions are connected with pulling boards (2). Each pulling board connection position is arranged at equal intervals in the front-rear direction.

3. The eccentric one-to-five traction plate according to claim 2, characterized in that: The traction board is balanced in weight before and after with the fourth board of the pulling board (2) as the boundary.

4. The eccentric one-to-five traction plate according to claim 3, characterized in that: Each of the pulling board connection positions includes 2 hinge plates (5) parallel to each other in the front-rear direction. The left end of each pulling board (2) is arranged between the 2 hinge plates (5) of the corresponding pulling board connection position. Both the pulling board (2) and the hinge plate (5) are provided with coaxial hinge holes penetrating through the front and back, and are rotatably hinged through a hinge shaft (6).

5. The eccentric one-to-five traction plate according to claim 4, characterized in that: The hinge shaft (6) is a long shaft, and the long shaft penetrates through the hinge holes of 8 pulling board connection positions and 6 pulling boards (2) for hinging.

6. The eccentric one-to-five traction plate according to claim 5, characterized in that: The secondary board includes the pulling boards (2) and pulling board connection members (7). The pulling board connection members (7) are fixedly connected between every two adjacent pulling boards (2).

7. The eccentric one-to-five traction plate according to claim 6, characterized in that: The pulling board connection member (7) includes a left board (701), a right board (702), a top board (703) and a bottom board (704). The left board (701), the right board (702), the top board (703) and the bottom board (704) form a hollow closed rectangular body, and the pulling board connection member (7) is fixedly welded to the adjacent pulling board (2).

8. The eccentric one-to-five traction plate according to claim 7, characterized in that: The hinge plates (5) and the connecting nose (3) are both fixedly welded to the walking board body (1).

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