Pin-removing device for replacing insulator string at ground potential

Abstract

The invention discloses a pin-removing device for replacing an insulator string at a ground potential. The pin-removing device comprises a main frame, a roller, a rack, an M-shaped pin-removing head and an R-shaped pin-removing head, the roller is rotatably arranged in the main frame; the rack is movably arranged in the main frame and is in meshed connection with the roller; the M-shaped pin removing head is fixed at one end of the rack; and the R-shaped pin removing head is fixed at the other end of the rack. Due to the fact that the M-shaped pin taking head and the R-shaped pin taking head are installed at the left end and the right end of the rack respectively, the problem that a traditional tool is difficult to take out an R-shaped pin needle is solved, and the innovatively developed pin taking device can take out the R-shaped pin easily and rapidly. And meanwhile, the M-shaped pin taking head completes pin taking in the mode that the tail of the pin is pushed forwards, the R-shaped pin taking head completes pin taking in the mode that the head of the pin is pulled reversely, and the two kinds of operation share one torsion transmission stroke and one set of in-place locking hole position. And the tool is simplified and the self-weight is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of power grid engineering, and in particular to a ground potential replacement insulator string pin removal device. Background Art

[0002] At present, when replacing insulators at ground potential using an insulating operating rod equipped with a pin remover to perform the pin removal operation, the insulating operating rod is too long and the operating personnel cannot quickly and accurately remove or install the insulator locking pin due to the large swing of the insulating operating rod during operation. It takes a long time to remove and install the insulator locking pin. When using traditional methods, the use of the insulating operating rod pin remover is time-consuming and laborious (the operating rod swings back and forth, the locking pin is deformed and difficult to remove, the locking pin falls off during installation, and the locking pin is not installed in place). The reason is that the existing insulating operating rod pin removers mostly remove the insulator locking pin, then replace the insulator string, and then install the locking pin back. The operation steps are repeated, and there is a safety hazard of falling objects from heights. When the insulator locking pin is deformed, it is extremely difficult to operate the insulator operating rod pin remover, which requires the operator to have strong wrist strength and constantly adjust the working angle to remove the insulator locking pin. Not only is the safety poor, but the pin removal and installation process is also slow, resulting in a long time for replacing the insulator string at ground potential, high physical exertion, low work efficiency, and hidden dangers such as falling objects from high altitude, which seriously affects the replacement of insulation. Summary of the invention

[0003] The technical solution of the present invention to solve the above-mentioned technical problems is to provide a ground potential replacement insulator string pin removal device, comprising: a main frame, a roller, a rack, an M-type pin removal head and an R-type pin removal head; the roller is rotatably arranged in the main frame; the rack is movably arranged in the main frame and meshingly connected with the roller; the M-type pin removal head is fixed at one end of the rack; the R-type pin removal head is fixed at the other end of the rack.

[0004] Furthermore, the ground potential replacement insulator string pin removal device also includes an M-type fixing frame, which is fixed on the main frame and located on one side of the M-type pin removal head.

[0005] Furthermore, the ground potential replacement insulator string pin removal device also includes: an R-type fixing frame, which is fixed on the main frame and located on one side of the R-type pin removal head.

[0006] Furthermore, the ground potential replacement insulator string pin removal device also includes: an insulating long rod, which is connected to the roller and is used to rotate the roller.

[0007] Compared with the prior art, this application has the following beneficial effects:

[0008] (1) The pin removal device of the present invention is equipped with a multifunctional pin fixing frame, which clamps the connecting part of the insulator string through the fixing frame. It only needs to be docked once, and there is no need to maintain precise alignment during subsequent operations. It is easier to find the pin hole position during maintenance operations. Personnel with no experience in such operations can easily complete the operation after simple training, which greatly reduces the operating difficulty of such operations and improves work efficiency.

[0009] (2) The pin removal device of the present invention is different from the traditional pin removal tool. During the pin removal operation, it is only necessary to push the pin to the waiting state, without removing the entire pin, and it does not affect the maintenance work. It changes the traditional pin removal process. When the pin is completely removed, the pin is in a state without backup protection on the tool, which is easy to fall off and cause a safety hazard of falling objects from high altitude. In addition, when resetting the pin, the operation difficulty of resetting the pin in the waiting state is much simpler than installing the entire pin, which improves the safety factor of the operation and simplifies the operation steps.

[0010] (3) The pin removal device of the present invention has an M-type pin removal head and an R-type pin removal head installed at the left and right ends respectively, which solves the problem that traditional tools are difficult to complete the removal of R-type pins. The innovatively developed pin removal device can achieve simple and fast removal of R-type pins. At the same time, the M-type pin removal head uses a forward push pin tail to complete the pin removal, and the R-type pin removal head uses a reverse pull pin head to complete the pin removal, so that the two operations share a torsion transmission stroke and a set of in-place locking holes. The tool is simplified while reducing its own weight.

[0011] (4) The pin removal device of the present invention has a simple structure and adopts a lightweight design concept as a whole. Both ends are equipped with fixed ends for limiting, so there is no need for operators to maintain the operation of the operating lever during operation. The operation is simpler than before and the operation time is reduced. In summary, the tool greatly reduces the physical exertion of the operator, making the pin removal operation safer and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0013] Figure 1 It is a structural schematic diagram of the device for removing the pins of the insulator string for replacing the ground potential according to the present invention;

[0014] Figure 2 It is a side structural schematic diagram of the ground potential replacement insulator string pin removal device of the present invention.

[0015] Description of Figure Numbers:

[0016] Label name Label name 10 Main frame 50 R type pin removal head 20 Scroll Wheel 60 M-type fixing bracket 30 rack 70 R-type fixing bracket 40 M-type pin removal head DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the accompanying drawings of the present invention specification to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0019] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "several" or "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0020] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0022] The present invention proposes a device for removing pins from a ground potential replacement insulator string, aiming to provide an operation method for maintenance of various equipment and solve the problem that it is difficult to remove the ground potential of an R-type pin.

[0023] The device for removing the pins from the ground potential replacement insulator string proposed by the present invention will be described in a specific embodiment as follows:

[0024] In the technical solution of this embodiment, Figure 1 , Figure 2 As shown, a ground potential replacement insulator string pin removal device includes: a main frame 10, a roller 20, a rack 30, an M-type pin removal head 40 and an R-type pin removal head 50; the roller 20 is rotatably arranged in the main frame 10; the rack 30 is movably arranged in the main frame 10 and meshingly connected with the roller 20; the M-type pin removal head 40 is fixed at one end of the rack 30; and the R-type pin removal head 50 is fixed at the other end of the rack 30.

[0025] Specifically, the M-type pin removal head 40 is vertically connected to the rack 30 to form a T-shaped structure for pushing out the M-type pin, and the R-type pin removal head 50 is fixed to the other end of the rack 30 to form an L-shaped structure for inserting into the R-type pin and hooking out the R-type pin.

[0026] Furthermore, the ground potential replacement insulator string pin removal device also includes an M-shaped fixing frame 60 , which is fixed on the main frame 10 and located on one side of the M-shaped pin removal head 40 .

[0027] Furthermore, the ground potential replacement insulator string pin removal device also includes: an R-type fixing frame 70, which is fixed on the main frame 10 and located on one side of the R-type pin removal head 50.

[0028] Furthermore, the ground potential replacement insulator string pin removal device also includes: an insulating long rod, which is connected to the roller 20 and is used to manually rotate the roller 20.

[0029] Specifically, the insulating long rod has a supporting function and is used to connect the M-type fixing frame 60 or the R-type fixing frame 70 to the connecting part of the insulator string. Then, by rotating the insulating long rod, the roller 20 is driven to rotate. The roller 20 acts on the rack 30, so that the rack 30 moves toward the insulator string, thereby completing the operation.

[0030] Working principle:

[0031] The insulator string connection part is clamped by the M-type fixing frame 60 or the R-type fixing frame 70, and the roller 20 is driven by rotating the insulating long rod. The roller 20 is connected with the rack 30 through meshing. Driven by the roller 20, the rack 30 moves in one direction, and the M-type pin removal head 40 or the R-type pin removal head 50 at the end of the rack 30 pushes or pulls the pin out to the locking state for maintenance.

[0032] Beneficial effects:

[0033] The present application clamps the insulator string connection part through the M-type fixing frame 60 or the R-type fixing frame 70, which only needs to be connected once, and there is no need to maintain precise alignment during subsequent operations. It is easier to find the pin hole position during maintenance operations, which greatly facilitates the pin remover to align the hole position, greatly reduces the operating difficulty of such operations, and improves work efficiency. Personnel with no experience in such operations can easily complete the operation after simple training.

[0034] During the pin removal operation, it is only necessary to push the pin to the waiting state through the M-type pin removal head 40 or the R-type pin removal head 50 on the rack 30. There is no need to remove the entire pin, and it does not affect the maintenance work. This changes the traditional pin removal process in which the pin is in a state of no backup protection on the tool when all the pins are taken out, and it is easy to fall off and cause a safety hazard of falling objects from a high altitude. The device is equipped with a pin removal action locking device to solve the problem of needing manpower to maintain the rotation angle of the operating lever when the pin is in the waiting reset state, avoiding the problem of excessive torsion angle causing all the pins to fall out and excessive angle causing difficulty in removing the insulator, simplifying the operation process, and solving the problem of difficulty in removing the R-type pin ground potential and the M-type pin ground potential.

[0035] The pin removal device of the present application is equipped with an M-type pin removal head 40 and an R-type pin removal head 50 at the left and right ends respectively, which solves the problem that traditional tools are difficult to complete the removal of R-type pins. The innovatively developed pin removal device can achieve simple and fast removal of R-type pins. At the same time, the M-type pin removal head 40 uses a forward push pin tail to complete the pin removal, and the R-type pin removal head 50 uses a reverse pull pin head to complete the pin removal, so that the two operations share a torsion transmission stroke and a set of in-place locking holes. The tool is simplified while reducing its own weight.

[0036] The new pin remover has a simple structure and adopts a lightweight design concept. Fixed frames are installed at both ends for position limiting. During operation, there is no need for operators to maintain the operation lever manually. The operation is simpler than before and the operation time is reduced. In summary, this tool greatly reduces the physical exertion of operators and makes the pin removal operation safer and more efficient.

[0037] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A device for removing pins from insulator strings for replacing ground potential, characterized in that: include: Main frame; A roller, the roller being rotatably disposed in the main frame; A rack, the rack being movably disposed in the main frame and meshingly connected with the roller; An M-shaped pin removal head, the M-shaped pin removal head being fixed to one end of the rack; and An R-shaped pin removal head is fixed to the other end of the rack.

2. The device for removing the pins from the ground potential replacement insulator string according to claim 1, characterized in that: Also includes: An M-shaped fixing frame is fixed on the main frame and is located on one side of the M-shaped pin removal head.

3. The device for removing the pins from the ground potential replacement insulator string according to claim 1, characterized in that: Also includes: An R-shaped fixing frame is fixed on the main frame and is located on one side of the R-shaped pin removal head.

4. The device for removing the pins from the ground potential replacement insulator string according to claim 1, characterized in that: Also includes: An insulating long rod is connected to the roller and is used to rotate the roller.

Images