CN108462100A - A kind of six or three hanging point strain insulator-string operating platform of ± 800 kV UHVDC Transmission Lines - Google Patents

Abstract

The invention relates to a ±800 kV UHV DC line six-connection three-hanging-point tension string operating platform, the operating platform is an upper string operating platform or a lower string operating platform; the upper string operating platform includes two upper string main rods And the upper string seat plate arranged between the two upper string main rods, the upper string main rod is connected with the porcelain bottle steel cap of the tension string; the lower string operation platform includes two lower string main rods and a set The lower string pedal is located below between the two lower string main rods. The longitudinal section of the lower string pedal is a trapezoid with a wide upper part and a narrower lower bottom. The lower string main rod is connected with the porcelain bottle steel cap of the tension string . The invention is convenient for staff to carry out the replacement work of porcelain bottles.

Description

A six-connection three-point tension string operating platform for ±800 kV UHV DC lines

technical field

The invention belongs to the technical field of live operation of power grids and transmission lines, and in particular relates to a six-connection, three-hanging-point tension string operating platform for ±800 kV UHV DC lines.

Background technique

As an important part of the UHV backbone grid of the State Grid, the "Jalut-Qingzhou" ±800 kV UHV DC transmission project is the first UHV power transmission channel in eastern Inner Mongolia.

Large-capacity power transmission and conversion of ±800 kV UHV transmission lines. From the moment it is connected to the power grid, it will have a decisive impact on the safety of the power grid. Once a power accident occurs, it will cause great fluctuations, oscillations and even disconnection of the power grid. Therefore, how to improve the reliability of power supply, strengthen the operation and maintenance technology, adopt the live working technology, realize the non-stop inspection and maintenance, and realize the uninterrupted continuous power supply have become the problems that must be solved.

Due to the particularity of the six-link three-hanging point string, the staff in the replacement of the porcelain bottle did not have enough

Therefore, it is difficult to carry out the replacement work of porcelain bottles due to the space, and it is necessary to develop a working platform for six-link three-point strings.

Contents of the invention

The technical problem to be solved by the present invention is to provide a ±800 kV UHV DC line six-connection three-point tension string operation platform, which is convenient for the staff to carry out the replacement of porcelain bottles.

In order to achieve the above object, the technical solution of the present invention includes: the operating platform is an upper string operation platform or a lower string operation platform;

The upper string operation platform includes two upper string main rods and an upper string seat plate arranged between the two upper string main rods, and the upper string main rods are connected with the porcelain bottle steel caps of the tension strings;

The lower string operating platform includes two lower string main rods and a lower string foot pedal arranged between the two lower string main rods, the longitudinal section of the lower string pedal is a trapezoid with a wide top and a narrow bottom. The main rod of the lower string is connected with the steel cap of the porcelain bottle of the tension string.

Further, upper string positioning holes are evenly distributed on the upper string main rod, the number of the upper string seat plate is one or more, and the two ends of the upper string seat plate are respectively provided with the upper string positioning holes. The upper string positioning rod that matches the hole.

Further, the size of the upper string seat plate matches the distance between the two upper string main rods.

Further, the upper and lower ends of the upper string seat board are provided with upper string positioning rods, and the left and right ends of the upper string seat board are respectively provided with upper string slots and upper string plug boards, and the upper string slots and upper string Adapter board.

Further, the lower string positioning holes are evenly distributed on the lower string main rod, the number of the lower string pedals is one or more, and the upper parts of the two ends of the lower string pedals are respectively provided with the The lower string positioning rod that matches the lower string positioning hole.

Further, the size of the lower string pedals matches the distance between the two lower string main rods.

Further, the lower string operating platform further includes lower string support uprights respectively arranged at the lower ends of the two lower string main rods.

Further, the lower supporting pole includes an upper pole and a lower pole, the upper end of the upper pole is fixedly connected to the main pole of the lower series, and the lower end of the upper pole is screwed to the upper end of the lower pole.

Further, the present invention also includes a conveying device for porcelain bottle insulators; the conveying device for porcelain bottle insulators includes a main conveying rod arranged obliquely and an opening bracket slidably arranged on the main conveying rod, and the higher end of the main conveying rod is connected to the porcelain insulator The steel cap is connected, the lower end of the transmission main rod is fixed on the ground through a fixed bracket, the upper end of the opening support is set on the transmission main rod through a pulley, and the bottom of the opening support is provided with an opening.

Further, the opening at the lower part of the opening bracket is inverted U-shaped; the higher end of the main transmission rod is provided with a hoisting ring.

The positive effect of the present invention is as follows:

The position of the working platform of the present invention is reasonably installed according to the position of the porcelain bottle to be replaced. The upper string operation platform is used for replacing the porcelain bottles of the upper string of porcelain bottles. When replacing porcelain bottles, due to the space position, the operator stands on the foot pedal of the lower string, which is lower than the height of the string of porcelain bottles, which is convenient for operation. In addition, the working platform of the present invention also includes a porcelain bottle insulator conveying device, which is used to drive the replaced porcelain bottle insulator.

Description of drawings

Fig. 1 is a schematic structural view of an upper string operation platform of the present invention;

Fig. 2 is a schematic diagram of the side structure of the foot pedal of the lower string operation platform of the present invention;

Fig. 3 is a structural schematic diagram of the upper string seat board of the present invention;

Fig. 4 is a schematic structural view of the porcelain bottle insulator conveying device of the present invention;

In the accompanying drawings, a-1 upper string main rod, a-2 upper string seat plate, a-3 upper string positioning hole, a-4 upper string plug board, a-5 upper string slot, a-6 upper string positioning Rod, b-1 lower string main rod, b-2 lower string pedal, b-3 lower string positioning hole, c-1 transmission main rod, c-2 opening bracket, c-3 lifting ring, c-4 fixing stand.

Detailed ways

As shown in Figures 1-4, the present invention is applied to the operation platform used for replacing porcelain bottles with six-connected three-hanging-point strain strings of ±800 kV UHV DC lines. Different platforms are selected according to the position of the porcelain bottles to be replaced.

The operation platform is an upper string operation platform or a lower string operation platform; the position of the work platform is reasonably installed according to the position of the porcelain bottle to be replaced, and the upper string operation platform is used for the replacement of the porcelain bottles of the upper string of porcelain bottles. When working on a-2, the lower string operation platform is used for replacing the porcelain bottles of the lower string of porcelain bottles. Due to the space position, the operator stands on the lower string pedal b-2, which is lower than the height of the string of porcelain bottles, which is convenient for operation.

The upper string operating platform includes two upper string main rods a-1 and an upper string seat a-2 arranged between the two upper string main rods a-1, and the upper string main rods a-1 and Porcelain bottle steel cap connection of tension string;

The lower string operating platform includes two lower string main rods b-1 and a lower string pedal b-2 arranged below the two lower string main rods b-1, the lower string pedal b- The longitudinal section of 2 is a trapezoid with a wide top and a narrow bottom, and the main rod b-1 of the lower string is connected with the steel cap of the porcelain bottle of the tension string.

Further, upper string positioning holes a-3 are evenly distributed on the upper string main rod a-1, the number of the upper string seat a-2 is one or more, and the upper string seat a-2 The two ends of the upper string are respectively provided with the upper string positioning rod a-6 adapted to the upper string positioning hole a-3, the upper string positioning rod a-6 can be a threaded rod, and the upper string positioning hole a-3 is Threaded hole, when in use, screw the upper string positioning rod a-6 into the upper string positioning hole a-3 to fix it. The size of the upper string seat a-2 matches the distance between the two upper string main rods a-1, the upper string seat a-2 is just located between the two upper string main rods a-1, the upper string The two ends of the string seat plate a-2 are respectively connected with the two upper string main rods a-1.

Further, the upper and lower ends of the upper string seat plate a-2 are provided with upper string positioning rods a-6, and the left and right ends of the upper string seat plate a-2 are respectively provided with upper string slots a-5 and upper string Plug-in board a-4, the upper string slot a-5 is compatible with the upper string plug-in board a-4, when the number of porcelain bottles to be replaced is large, multiple upper string seat boards a-2 can be plugged together Then fix it between the two main rods a-1 of the upper string, and fix the upper and lower ends of the seat plate a-2 of the upper string through the positioning rod a-6 of the upper string and the positioning hole a-3 of the upper string when plugging in. , and then the adjacent upper series seat boards a-2 are fixed through the cooperation of the upper series slot a-5 and the upper series board a-4, and the upper series board a-4 is plugged into its corresponding upper series plug Just put it in the slot a-5, which is convenient and fast. The upper string seat plate a-2 is a flat plate. When in use, the operator who replaces the porcelain bottle insulators sits on the upper string seat plate a-2, and can easily touch the porcelain bottle strings above the operator, and then replace them, which greatly improves the work efficiency.

There are lower string positioning holes b-3 evenly distributed on the lower string main rod b-1, the number of the lower string pedals b-2 is one or more, and the two lower string pedals b-2 The upper part of the end is respectively provided with a lower string positioning rod adapted to the lower string positioning hole b-3. The lower string pedal b-2 realizes the fixing of the lower string pedal b-2 through the connection between the lower string positioning hole b-3 and the lower string positioning rod b-4, and the lower string positioning rod b-4 can Selected from the screw, the lower string positioning hole b-3 is provided with a screw thread suitable for the screw, or the lower string positioning rod b-4 is plugged into the lower string positioning hole b-3, in addition, thus, referring to the above In the structure of the seat board a-2, the upper and lower ends of the lower pedal b-2 are provided with positioning rods, and the two ends of the bottom of the lower pedal b-2 are respectively provided with slots and boards, so that The narrowest part at the bottom of the lower pedal b-2 can be connected together through a slot and a plugboard. When there are many porcelain bottles to be replaced, the extension length of the lower pedal b-2 can be extended and adjusted, and the structure is flexible.

The size of the lower string pedal b-2 matches the distance between the two lower string main rods b-1, that is, the lower string pedal b-2 is exactly located on the two lower string main rods b-1 Between them, they are fixed by the lower string positioning hole b-3 and the lower string positioning rod b-4.

Further, the lower string operation platform further includes lower string support vertical rods respectively arranged at the lower ends of the two lower string main rods b-1, for supporting the lower string main rods b-1.

Further, the lower supporting pole includes an upper pole and a lower pole, the upper end of the upper pole is fixedly connected to the main pole b-1 of the lower series, and the lower end of the upper pole and the upper end of the lower pole are threaded Connection, specifically, the upper part of the lower vertical rod is a hollow structure, the inside of the lower vertical rod is provided with internal threads, the outer circumference of the lower end of the upper vertical rod is provided with external threads, and the inner internal thread of the lower vertical rod is connected with the lower end of the upper vertical rod. The external thread is compatible, and the upper vertical rod can be inserted into the inner length of the lower vertical rod by rotating the thread to adjust. By adjusting the degree of threading between the upper vertical rod and the lower vertical rod, the relative height of the upper vertical rod and the lower vertical rod can be adjusted, that is, the overall height of the lower string support vertical rod can be adjusted.

The present invention also includes a porcelain bottle insulator conveying device, which is used to drive the replaced porcelain bottle insulator; the porcelain bottle insulator conveying device includes an obliquely arranged conveying main rod c-1 and an opening bracket slidably arranged on the conveying main rod c-1 c-2, the higher end of the transmission main rod c-1 is connected to the steel cap of the porcelain bottle, the lower end of the transmission main rod c-1 is fixed on the ground through the fixed bracket c-4, and the opening bracket c The upper end of -2 is set on the transmission main rod c-1 through a pulley, and the lower part of the opening bracket c-2 is provided with an opening. The opening at the lower part of the opening bracket c-2 is compatible with the porcelain bottle insulator to be replaced, and the replaced porcelain bottle insulator is clamped at the lower part of the opening bracket c-2, and the opening bracket c-2 is pushed downward to smoothly transport the porcelain bottle insulator go down.

Further, the opening at the lower part of the opening bracket c-2 is an inverted U shape; the higher end of the transmission main rod c-1 is provided with a lifting ring c-3, which is used to cooperate with the crane to lift the transmission main rod c-1 Hoist to preset position.

The porcelain bottle insulator transfer device can be used in conjunction with the upper string operation platform or the lower string operation platform to facilitate the replacement of porcelain bottle insulators.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A ±800 kV UHV DC line six-connection three-hanging-point tension string operating platform, characterized in that: the operating platform is an upper string operating platform or a lower string operating platform; The upper string operation platform includes two upper string main rods (a-1) and an upper string seat plate (a-2) arranged between the two upper string main rods (a-1), the upper string The main rod (a-1) is connected with the steel cap of the porcelain bottle of the strain string; The lower string operation platform includes two lower string main rods (b-1) and a lower string pedal (b-2) arranged below the two lower string main rods (b-1). The longitudinal section of the string pedal (b-2) is a trapezoid with a wide top and a narrow bottom, and the main rod of the bottom string (b-1) is connected with the porcelain bottle steel cap of the tension string. 2. A ±800 kV UHV DC line six-connection three-hanging-point strain string operating platform according to claim 1, characterized in that: the upper string main pole (a-1) is evenly distributed with upper string Positioning holes (a-3), the number of the upper string seat plate (a-2) is one or more, and the two ends of the upper string seat plate (a-2) are respectively provided with the upper string positioning The upper string positioning rod (a-6) that matches the hole (a-3). 3. A ±800 kV UHV DC line six-connection three-hanging-point tension string operation platform according to claim 2, characterized in that: the size of the upper string seat (a-2) is the same as that of the two upper Match the distance between the string main rods (a-1). 4. A ±800 kV UHV DC line six-connection three-hanging-point tension string operation platform according to claim 2, characterized in that: the upper and lower ends of the upper string seat (a-2) are provided with upper The string positioning rod (a-6), the left and right ends of the upper string seat plate (a-2) are respectively provided with the upper string slot (a-5) and the upper string insert plate (a-4), the upper string The slot (a-5) matches the upper string board (a-4). 5. A ±800 kV UHV DC line six-connection three-hanging-point strain string operation platform according to claim 1, characterized in that: the lower string main pole (b-1) is evenly distributed with lower strings Positioning holes (b-3), the number of the lower string pedals (b-2) is one or more, and the upper parts of the lower string pedals (b-2) are respectively provided with the The positioning rod of the lower string matching the positioning hole (b-3) of the lower string. 6. A ±800 kV UHV DC line six-connection three-hanging-point tension string operating platform according to claim 5, characterized in that: the size of the lower string pedal (b-2) is the same as that of two Match the distance between the lower string stems (b-1). 7. A ±800 kV UHV DC line six-connection three-hanging-point strain string operation platform according to claim 1, characterized in that: the lower string operation platform also includes two lower string main rods respectively (b-1) The lower string support pole at the lower end. 8. A ±800 kV UHV DC line six-connection three-hanging-point tension string operation platform according to claim 7, characterized in that: the lower string support pole includes an upper pole and a lower pole, the The upper end of the upper vertical rod is fixedly connected to the lower main rod (b-1), and the lower end of the upper vertical rod is connected with the upper end of the lower vertical rod through threads. 9. A ±800 kV UHV DC line six-connection three-hanging-point strain string operating platform according to claim 1, characterized in that: it also includes a porcelain bottle insulator transmission device; the porcelain bottle insulator transmission device includes an inclined The transmission main rod (c-1) and the opening bracket (c-2) slidingly arranged on the transmission main rod (c-1), the higher end of the transmission main rod (c-1) is connected with the steel cap of the porcelain bottle connection, the lower end of the transmission main rod (c-1) is fixed on the ground through the fixed bracket (c-4), and the upper end of the opening bracket (c-2) is set on the transmission main rod (c- 1), the lower part of the opening bracket (c-2) is provided with an opening. 10. A ±800 kV UHV DC line six-connection three-hanging-point tension string operating platform according to claim 9, characterized in that: the opening at the lower part of the opening support (c-2) is an inverted U-shape; A lifting ring (c-3) is provided at the higher end of the main transmission rod (c-1).