CN103896153A - Zig-zag derrick for replacing disconnecting link - Google Patents

Abstract

The invention discloses a herringbone holding pole for replacing a knife switch. The technical problem to be solved is that the holding pole used in the construction method for replacing the knife gate in the existing central plains operating substation has shortcomings in the background technology. The technical solution adopted: including the left herringbone, right herringbone, suspension head, left fixing seat and right fixing seat; the suspension head is connected with the upper ends of the left and right herringbone, and the left and the right herringbone are in the shape of a "herringbone"; the left fixing seat is set at the bottom of the left herringbone, and the right fixing seat is set at the bottom of the right herringbone; both the left and right herringbone include the upper The column and the lower column; the connection between the upper column and the lower column is detachable; the suspension head includes a left connecting plate, a right connecting plate and a hook; the lower end of the left connecting plate is connected with the top of the left herringbone, and the right The lower end of the plate is connected with the top of the right herringbone bar; the upper end of the left connecting plate and the upper end of the right connecting plate are connected with the hook at the same time; the hook is provided with a through hole.

Description

A kind of herringbone holding rod for replacing the knife switch

technical field

The invention relates to a herringbone holding rod for replacing a knife switch, in particular to a herringbone holding rod for replacing or newly installing a 110KV and 35KV knife switch, which belongs to the configuration of lifting tools.

Background technique

The construction method of replacing the knife switch in the original operating substation, 220kV, 110kV knife switch group, the new installation adopts a Ф10 cm ordinary steel pipe holding pole, 6.5 meters long, cannot be segmented, transported by large vehicles, enters the operating substation and lifts to the 2nd floor platform, extended Use the lifting process to ensure that the interval space satisfies the safe distance to hold the pole and lift it into the air. 12 people cooperate with the operation at the same time, and the command is unified. 3 people stabilize the root of the pole, and 4 people control the direction of the wind rope. The holding pole was moved to the root of the orchid frame of the knife gate and tied, the wind rope was fixed, unified cooperation, unified command 1 person, 4 people for transportation and assembly, 2 people for climbing operations, 4 people for lifting and traction, and the replacement of 1 group of knife gates was completed. The method is to move to the 2 sets of knife gates and prepare for lifting.

shortcoming:

1. Self-made processing, iron steel pipe holding pole, no reliable safety factor, no test for lifting load, relatively high risk and hidden danger. 2. The entire 6.5-meter-long pole is inconvenient to carry and must be transported by a large vehicle. 3. The 6.5-meter steel pipe holding pole has a large turning radius and limited upper and lower space in the operating substation, which poses a greater safety risk to the operation of the equipment. 4. There are 12 people involved in the construction work. The labor intensity of the personnel is high, and it is easy to damage the knife gate porcelain vase. The construction method is cumbersome. 5. The construction efficiency is low, the construction process is difficult, there are many risk factors for personal safety and equipment safety, and the safety technical and economic indicators are difficult to control.

Contents of the invention

The technical problem to be solved by the present invention is: there are shortcomings in the background technology for the poles used in the construction method of replacing the knife switch in the existing Zhongyuan operating substation.

The object of the present invention is to provide a herringbone holding rod for replacing a knife switch.

The technical scheme that the present invention adopts for solving the problems of the technologies described above is as follows:

A herringbone holding bar for replacing a knife switch, including a left herringbone bar, a right herringbone bar, a suspension head, a left fixing seat and a right fixing seat; The upper ends are connected, and the left herringbone and the right herringbone are in the shape of a "herringbone"; the left fixing seat is set at the bottom of the left herringbone, and the right fixing seat is set at the bottom of the right herringbone; the left herringbone It is a movable connection with the left fixed seat; it is also a movable connection between the right herringbone rod and the right fixed seat;

The left herringbone and the right herringbone both include an upper column and a lower column; the upper column and the lower column are connected in a detachable manner;

The suspension head includes a left connecting plate, a right connecting plate and a suspension hook; the lower end of the left connecting plate is connected with the top of the left herringbone bar, and the lower end of the right connecting plate is connected with the top of the right herringbone bar; The upper end of the left connecting plate and the upper end of the right connecting plate are connected with the hook at the same time;

The hook is provided with a through hole for connecting to a chain hoist.

The upper column and the lower column of the present invention are telescopic rods. The upper column and the lower column of the present invention adopt telescopic rods in order to be better suitable for replacement at different heights, expand their application range and reuse rate, and at the same time be convenient to carry, reduce the working space, and have a wider application range.

Both the upper column and the lower column described in the present invention are made of aluminum alloy material in the prior art.

Using the holding pole of the present invention, the process method of replacing 110kV and 35kV knife switch groups:

In the construction of the reconstruction and expansion project, especially in the work of the second-floor platform interval of the operating substation and the replacement of the knife switch in a power failure, the adjacent two sides are running at intervals, and the replacement of the 110kV knife switch is performed. The fixed aluminum alloy herringbone pole is used, which is divided into two sections. Each section is 1.5 meters, the base is 0.3 meters, the diameter of the pole is 6.5 cm, the total length of the pole is 3.1 meters, the total weight of the pole is 20 kg, the top is connected by bolts, and the herringbone pole is first fixed at the foot of the 110kV knife gate during construction , Both sides of the root of the channel steel are fixed with bolts and clamps at the root of the pole, and 3 nylon wind ropes are used to fix the herringbone pole, 2 on the windward side and 1 on the downwind side. The whole group removes 1 group of 110kV knife gates, on the second floor Assemble a set of new knife gates on the platform, and hoist the whole set.

Compared with the prior art, the present invention has the following advantages: 1. The construction method is simple, labor and time are saved, the holding pole is small in size, light in weight, and convenient for transportation, carrying, assembly and disassembly. 2. It is convenient to carry, carry and assemble in the running substation, and the disassembly and assembly are lengthened, and the operability is strong. 3. The safety factor ≥ 2.5 times is controllable, which is controllable and controllable for the safety of construction personnel and the safety of operating equipment. 4. In the specific environment of the operating substation, the on-site layout combined with the characteristics of the equipment structure can be controlled in a small and limited space to ensure the safety of the person and play a reliable, controllable and controllable role in the protection and safety of the equipment.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Figure 2 is a schematic structural view of the suspension head.

Among them, 1 is the upper column, 2 is the lower column, 3 is the suspension head, 3-1 is the left connecting plate, 3-2 is the right connecting plate, 3-3 is the hook, 3-3-1 is the through hole, 4 is a left fixed seat, and 5 is a right fixed seat, and 7 is a left herringbone bar, and 8 is a right herringbone bar.

Detailed ways

In order to make the content of the present invention more obvious and comprehensible, further description will be made below in conjunction with accompanying drawings 1-2 and specific implementation methods.

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

A herringbone holding rod for replacing a knife switch, comprising a left herringbone rod 7, a right herringbone rod 8, a suspension head 3, a left fixing seat 4 and a right fixing seat 5;

The left herringbone 7 and the right herringbone 8 include an upper column 1 and a lower column 2;

Suspension head 3 comprises left connecting plate 3-1, right connecting plate 3-2 and suspension hook 3-3;

The lower end of the left connecting plate 3-1 in the suspension head 3 links to each other with the top of the left herringbone bar 7 by bolts, and the lower end of the right connecting plate 3-2 links to each other with the top of the right herringbone bar 8 by bolts; the left connecting plate 3 The upper end of -1 and the upper end of the right connecting plate 3-2 are connected to the suspension hook 3-3 through bolts simultaneously; the left herringbone bar 7 and the right herringbone bar 8 are in the shape of "herringbone"; The bottom of the character bar 7, the right fixed seat 5 is arranged on the bottom of the right herringbone bar 8; between the left herringbone bar 7 and the left fixed seat 4 is a movable connection mode; the right herringbone bar 8 and the right fixed seat 5 There is also a movable connection between them; the left herringbone bar 7 and the right herringbone bar 8 both include an upper column 1 and a lower column 2; the upper column 1 and the lower column 2 are connected by bolts; the hook 3-3 is provided with There are through holes 3-3-1 for mounting chain hoists.

Using the holding pole of the present invention, the process method of replacing the 110kV knife switch group:

In the construction of the reconstruction and expansion project, especially in the work of the second-floor platform interval of the operating substation and the replacement of the knife switch in a power failure, the adjacent two sides are running at intervals, and the replacement of the 110kV knife switch is performed. The fixed aluminum alloy herringbone pole is used, which is divided into two sections. Each section is 1.5 meters, the base is 0.3 meters, the diameter of the pole is 6.5 cm, the total length of the pole is 3.1 meters, the total weight of the pole is 20 kg, the top is connected by bolts, and the herringbone pole is first fixed at the foot of the 110kV knife gate during construction , Both sides of the root of the channel steel are fixed with bolts and clamps at the root of the pole, and 3 nylon wind ropes are used to fix the herringbone pole, 2 on the windward side and 1 on the downwind side. The whole group removes 1 group of 110kV knife gates, on the second floor Assemble a set of new knife gates on the platform, and hoist the whole set.

In addition to the above-mentioned embodiments, the present invention can also have other implementations. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Achievements achieved by adopting the pole of the present invention:

Through the efforts in recent years, dozens of substations have been rebuilt and expanded, and nearly a hundred sets of 220kV and 110kV knife switches have been replaced. Practice has proved that this method is feasible and reliable, such as in 220kV Liuhe Substation, 220kV Banqiao Substation, 220kV Lishui Substation, 220kV Xiaozhuang Substation Substation, 220kV Dongyang Substation, 220kV Yaohuamen Substation, etc., have been widely operated and applied in practice. After a series of construction processes, it has been proved that this method is safe and controllable, and effectively guarantees personal safety and equipment safety. Safety improves the degree of mechanization and semi-mechanization of the construction process, reduces the risk rate of high-altitude operations, saves construction costs, reduces the repetitive labor and physical exertion of construction personnel, improves the economic benefits of employees, and ensures zero accidents in construction.

The parts not involved in the present invention are the same as the prior art or implemented by adopting the prior art.

Claims (2)

1. for changing a herringbone holding pole for disconnecting link, it is characterized in that, comprise Zuoren word bar (7), right herringbone bar (8), suspention head (3), left permanent seat (4) and right permanent seat (5); Described suspention head (3) is connected with the upper end of right herringbone bar (8) with Zuoren word bar (7), and described Zuoren word bar (7) and right herringbone bar (8) are " people " font; Left permanent seat (4) is arranged on the bottom of Zuoren word bar (7), and right permanent seat (5) is arranged on the bottom of right herringbone bar (8); Between described Zuoren word bar (7) and left permanent seat (4), it is movable connection mode; Between described right herringbone bar (8) and right permanent seat (5), it is also movable connection mode;

Described Zuoren word bar (7) and right herringbone bar (8) include upper pillar stand (1) and lower pillar stand (2); Between described upper pillar stand (1) and lower pillar stand (2), it is detachable connection mode;

Described suspention head (3) comprises left connecting panel (3-1), right connecting panel (3-2) and suspension hook (3-3); The lower end of described left connecting panel (3-1) is connected with the top of Zuoren word bar (7), and the lower end of described right connecting panel (3-2) is connected with the top of right herringbone bar (8); The upper end of the upper end of described left connecting panel (3-1), right connecting panel (3-2) is connected with suspension hook (3-3) simultaneously;

Described suspension hook (3-3) is provided with the through hole (3-3-1) for connection chain and tackle block.

2. as claimed in claim 1ly it is characterized in that for changing the herringbone holding pole of disconnecting link, described upper pillar stand (1) is expansion link with lower pillar stand (2).

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