CN114284930B - Live working insulator replacement working method - Google Patents
Live working insulator replacement working method Download PDFInfo
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- CN114284930B CN114284930B CN202111204476.3A CN202111204476A CN114284930B CN 114284930 B CN114284930 B CN 114284930B CN 202111204476 A CN202111204476 A CN 202111204476A CN 114284930 B CN114284930 B CN 114284930B
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Abstract
The invention discloses an operation method for replacing an insulator in live working, and aims to provide a live working insulator replacing device capable of replacing the insulator in live working. The method comprises the following steps in sequence: firstly, mounting and fixing a mounting bracket on a cross arm where an insulator to be replaced is located; secondly, controlling the push rod of the first electric push rod to be in a contracted state; thirdly, controlling the driving executing mechanism to work, driving the first electric push rod to rotate, and enabling the wire clamping groove to be aligned with the wire on the insulator to be replaced; fourthly, an operator wears the insulating glove and cuts the binding wire used for binding the wire on the insulator to be replaced through the insulating wire cutting pliers; fifthly, controlling the push rod of the first electric push rod to extend out to drive the insulating wire clamping piece to move upwards, so that the wire is supported on the insulating wire clamping piece; sixth, the insulator to be replaced is removed and replaced with a new insulator.
Description
Technical Field
The invention relates to an insulator replacement operation method, in particular to an insulator live operation replacement operation method.
Background
The current connection structure of the wire and the insulator is that the insulator is fixed on a cross arm of an electric pole (the cross arm is generally composed of angle steel), a top groove is arranged at the top end of the insulator, the wire is clamped in the top groove of the insulator, and then the wire is bound on the insulator by a specified binding method through binding wires. At present, when the insulator is replaced, an operator is required to remove the wire from the insulator and put the wire on the cross arm of the electric pole, then the insulator is replaced, and the wire is unstable to fix in the process of replacing the insulator; the insulator is replaced by adopting power failure operation, namely, the power supply of the wire where the insulator is positioned is cut off, and then the insulator is replaced; therefore, the current operation mode of replacing the insulator in the power failure operation can bring influence and inconvenience to production and life to the user of the power supply of the lead.
Disclosure of Invention
The invention aims to provide a live working insulator replacing operation method capable of replacing insulators in live working.
The technical scheme of the invention is as follows:
the live working insulator replacing method adopts an insulator replacing device to replace, the insulator replacing device comprises a mounting bracket, a first rotating seat rotatably arranged on the mounting bracket, a first electric push rod fixed on the first rotating seat, a driving executing mechanism for driving the first electric push rod to rotate around a rotating shaft of the first rotating seat, an insulating wire clamping piece fixed on the push rod of the first electric push rod and a wire clamping groove arranged on the insulating wire clamping piece,
the operation method for replacing the insulator in live working sequentially comprises the following steps:
firstly, mounting and fixing a mounting bracket on a cross arm where an insulator to be replaced is located;
secondly, controlling the push rod of the first electric push rod to be in a contracted state so that the insulating wire clamping piece is positioned below a wire on the insulator to be replaced;
thirdly, controlling the driving executing mechanism to work, and driving the first electric push rod to rotate around the rotating shaft of the first rotating seat so as to align the wire clamping groove with the wire on the insulator to be replaced; then, controlling the push rod of the first electric push rod to extend out to drive the insulating wire clamping piece to move upwards, enabling the wires on the insulator to be replaced to enter the wire clamping groove, and then controlling the first electric push rod to stop working;
fourthly, an operator wears the insulating glove and cuts the binding wire used for binding the wire on the insulator to be replaced through the insulating wire cutting pliers;
fifthly, controlling the push rod of the first electric push rod to extend out to drive the insulating wire clamping piece to move upwards, separating the lead from the top groove of the insulator to be replaced, and supporting the lead on the insulating wire clamping piece;
sixthly, the insulator to be replaced is detached and a new insulator is replaced;
seventhly, controlling the push rod of the first electric push rod to shrink so that the lead supported on the insulating wire clamping piece is clamped into the top groove of the new insulator; then binding and fixing the lead on a new insulator through binding wires; to realize live working to replace the insulator.
Preferably, the insulating wire clamping piece comprises an insulating rod, the insulating rod and the push rod of the first electric push rod are coaxially distributed, one end of the insulating rod is fixed at the end part of the push rod of the first electric push rod, and the wire clamping groove is formed in the other end of the insulating rod.
The anti-rotation safety device comprises a torsion spring, a clamping plate accommodating groove arranged on the outer side face of an insulating rod, a rotating clamping plate with one end arranged in the clamping plate accommodating groove in a rotating mode through a shaft rod and a base plate fixed on a mounting bracket, wherein the base plate is arranged on one side of the insulating rod and perpendicular to a rotating shaft of a first rotating seat, the base plate comprises a flat plate part and a clamping groove part which are distributed along the axial direction of the insulating rod, the flat plate part is arranged between the first rotating seat and the clamping groove part, one side face of the flat plate part, which faces the edge rod, is a plane, one side face of the clamping groove part, which faces the edge rod, is provided with a plurality of radial clamping grooves, each radial clamping groove extends around the circumferential direction of the rotating shaft of the first rotating seat, the length direction of each radial clamping groove extends along the radial direction of the rotating shaft of the first rotating seat, a notch of the clamping plate accommodating groove faces the base plate, and the other end of the rotating clamping plate is propped against the base plate under the action of the torsion spring;
when the push rod of the first electric push rod is in a contracted state, the other end of the rotating clamping plate is propped against the side surface of the flat plate part of the base plate under the action of the torsion spring;
when the push rod of the first electric push rod is in an extending state, the other end of the rotating clamping plate is propped against the side face of the clamping groove part of the base plate or clamped into one of the radial clamping grooves under the action of the torsion spring.
In the above-mentioned working method for replacing the insulator by live working, although live working can be realized, the operator is required to operate strictly according to the operation and use steps, if misoperation or misoperation occurs, potential safety hazards may occur, for example, in the operation of the second step, the operator does not control the push rod of the first electric push rod to be in a contracted state, the push rod of the first electric push rod is in an extended state, and then directly operates the third step to control the driving executing mechanism to work, so that the first electric push rod is driven to rotate around the rotating shaft of the first rotating seat, and then the push rod of the first electric push rod or the insulation clamping wire member may collide with the wire, so that the wire is damaged; or in the operations of the sixth step and the seventh step, the operator mistakenly controls the driving execution mechanism to work, and drives the first electric push rod to rotate around the rotating shaft of the first rotating seat, so that the wire supported on the insulating wire clamping piece shakes and contacts with an operator, potential safety hazards are generated, and even the wire supported on the insulating wire clamping piece is separated from the wire clamping groove and falls off, so that the potential safety hazards are generated. In order to solve the problems, the scheme is provided with the extending anti-rotation safety device, which can effectively solve the problems under the condition that the normal operation of an operation method for replacing the insulator in live working is not affected, in particular,
when the push rod of the first electric push rod is in an extending state, the other end of the rotating clamping plate is propped against the side surface of the clamping groove part of the substrate or is clamped into one of the radial clamping grooves under the action of the torsion spring, and if the other end of the rotating clamping plate is propped against one of the radial clamping grooves under the action of the torsion spring at the moment, the first electric push rod can be locked to rotate around the first rotating seat through the rotating clamping plate, and at the moment, even if the misoperation of the driving executing mechanism occurs, the first electric push rod can not rotate around the rotating shaft of the first rotating seat; if the other end of the rotating clamping plate is propped against the side surface of the clamping groove part of the substrate under the action of the torsion spring, and even if the error control driving executing mechanism works, the first electric push rod is driven to rotate around the rotating shaft of the first rotating seat, after the first electric push rod rotates for a certain angle, the rotating clamping plate is aligned with one radial clamping groove, and the other end of the rotating clamping plate is propped against one radial clamping groove under the action of the torsion spring, so that the first electric push rod is locked to rotate around the first rotating seat, and the first electric push rod is prevented from continuously rotating; therefore, the push rod of the first electric push rod is in an extending state, the driving executing mechanism is controlled to work, the first electric push rod is driven to rotate around the rotating shaft of the first rotating seat, the problem that the push rod or the insulating wire clamping piece of the first electric push rod collides with a wire occurs, in the operation of the fifth step, an operator mistakenly controls the driving executing mechanism to work, the first electric push rod is driven to rotate around the rotating shaft of the first rotating seat, the wire supported on the insulating wire clamping piece shakes and contacts with operators, potential safety hazards are generated, and even the wire supported on the insulating wire clamping piece is led to deviate from and fall off from the wire clamping groove, so that the potential safety hazards are generated.
Meanwhile, as the length direction of the radial clamping groove extends along the radial direction of the rotating shaft of the first rotating seat, the expansion and contraction of the push rod of the first electric push rod can not be influenced even if the other end of the rotating clamping plate is propped in one of the radial clamping grooves under the action of the torsion spring, and the normal operation of the operation method for replacing the insulator in live working can not be influenced.
Preferably, the mounting bracket is provided with a locking and fixing device, the locking and fixing device is used for locking and fixing the mounting bracket on the bracket where the insulator is located, and in the first step, the mounting bracket is fixedly arranged on the cross arm where the insulator to be replaced is located through the locking and fixing device.
Preferably, the locking and fixing device comprises a clamping groove, a locking screw hole and a locking bolt, wherein the opening of the clamping groove is arranged at the top of the mounting bracket, the locking screw hole is arranged at the top of the mounting bracket and is communicated with the clamping groove, and the locking bolt is matched with the locking screw hole.
Preferably, in the first step, the specific operation of installing and fixing the installation bracket on the cross arm where the insulator to be replaced is located is as follows, the cross arm where the insulator to be replaced is located is placed in the clamping groove, and the installation bracket is hung on the cross arm through the matching of the clamping groove and the cross arm; and then the mounting bracket is mounted and fixed on the cross arm where the insulator to be replaced is located by tightening the locking bolt.
Preferably, the drive actuator is a drive motor provided on the mounting bracket.
Preferably, the driving executing mechanism comprises a second rotating seat arranged on the mounting bracket in a rotating way and a second electric push rod fixed on the second rotating seat, and the push rod of the second electric push rod is hinged with the shell of the first electric push rod.
Preferably, in the third step, after the wire on the insulator to be replaced enters the wire clamping groove, and before the wire contacts with the groove bottom of the wire clamping groove, the first electric push rod is controlled to stop working.
Preferably, the seventh step is followed by the eighth step of removing the mounting bracket from the cross arm by an operator.
The beneficial effects of the invention are as follows: the live working insulator replacement can be realized, so that the insulator replacement is avoided, and the influence and the inconvenience of production and life are brought to a user.
Drawings
Fig. 1 is a schematic structural diagram of an operation method for replacing an insulator in live working according to a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an operation method for replacing an insulator in live working according to a second embodiment of the present invention.
Fig. 3 is a schematic view of a partial cross-sectional structure at A-A in fig. 2.
In the figure:
a mounting bracket 1;
a first rotating seat 2;
a first electric push rod 3;
the actuating mechanism 4, the second rotating seat 4.1 and the second electric push rod 4.2 are driven;
an insulating wire clamping piece 5, an insulating rod 5.0, an insulating wire clamping block 5.1 and a wire clamping groove 5.2;
locking and fixing device 6, clamping groove 6.1 and locking bolt 6.2;
a cross arm 7;
insulator 8.1, wire 8.2;
the anti-rotation safety device 9 extends out, the flat plate part 9.1, the clamping groove part 9.2, the radial clamping groove 9.3, the clamping plate accommodating groove 9.4, the shaft rod 9.5 and the rotation clamping plate 9.6.
Detailed Description
For the purpose of making the technical solution embodiment, the technical solution and the advantages of the present invention more apparent, the technical solution of the embodiment of the present invention will be clearly explained and illustrated below with reference to the accompanying drawings, but the following embodiment is only a preferred embodiment of the present invention, not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present invention.
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present solution and are not to be construed as limiting the solution of the present invention.
These and other aspects of embodiments of the invention will be apparent from and elucidated with reference to the description and drawings described hereinafter. In the description and drawings, particular implementations of embodiments of the invention are disclosed in detail as being indicative of some of the ways in which the principles of embodiments of the invention may be employed, but it is understood that the scope of the embodiments of the invention is not limited correspondingly. On the contrary, the embodiments of the invention include all alternatives, modifications and equivalents as may be included within the spirit and scope of the appended claims.
In the description of the present invention, it should be understood that the terms "thickness," "upper," "lower," "horizontal," "top," "bottom," "inner," "outer," "circumferential," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present invention. In the description of the present invention, the meaning of "a plurality" means at least two, for example, two, three, etc., unless explicitly defined otherwise, the meaning of "a number" means one or more.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
First embodiment: as shown in fig. 1, a live working method for replacing an insulator is a live working method for replacing an insulator by using an insulator replacing device.
The insulator replacing device comprises a mounting bracket 1, a first rotating seat 2 which is rotatably arranged on the mounting bracket, a first electric push rod 3 which is fixed on the first rotating seat, a driving executing mechanism 4 which is used for driving the first electric push rod to rotate around a rotating shaft of the first rotating seat, an insulating wire clamping piece 5 which is fixed on the push rod of the first electric push rod and a wire clamping groove 5.2 which is arranged on the insulating wire clamping piece. In this embodiment, the housing of the first electric putter is fixed on the first rotating seat.
The operation method for replacing the insulator in live working sequentially comprises the following steps:
first, the mounting bracket is mounted and fixed on the cross arm 7 where the insulator to be replaced is located.
And secondly, controlling the push rod of the first electric push rod to be in a contracted state so that the insulation wire clamping piece is positioned below the wire on the insulator 8.1 to be replaced.
Thirdly, controlling the driving executing mechanism to work, and driving the first electric push rod to rotate around the rotating shaft of the first rotating seat so as to align the wire clamping groove with the wire on the insulator to be replaced; then, the push rod of the first electric push rod is controlled to extend out to drive the insulating wire clamping piece to move upwards, so that the wire 8.2 on the insulator to be replaced enters the wire clamping groove, and then the first electric push rod is controlled to stop working. In this embodiment, after the wire on the insulator to be replaced enters the wire clamping groove, and before the wire contacts with the groove bottom of the wire clamping groove, the first electric push rod is controlled to stop working.
Fourthly, an operator wears the insulating glove and cuts the binding wire used for binding the wire on the insulator to be replaced through the insulating wire cutting pliers.
Fifthly, the push rod of the first electric push rod is controlled to extend out to drive the insulating wire clamping piece to move upwards, so that the lead is separated from the top groove of the insulator to be replaced, and the lead is supported on the insulating wire clamping piece.
Sixth, the insulator to be replaced is removed and replaced with a new insulator.
Seventhly, controlling the push rod of the first electric push rod to shrink so that the lead supported on the insulating wire clamping piece is clamped into the top groove of the new insulator; then, the wire is bound and fixed on the new insulator through the binding wire.
Eighth, the operator removes the mounting bracket from the cross arm. Thereby realizing live working to replace the insulator.
Specifically, the push rods of the first electric push rod are upwards distributed. The notch of the wire clamping groove is upwards distributed. The insulating wire clamping piece comprises an insulating rod 5.0, and the insulating rod and the push rod of the first electric push rod are coaxially distributed. One end of the insulating rod is fixed at the end part of the push rod of the first electric push rod, and the wire clamping groove is formed in the other end of the insulating rod. In this embodiment, the other end of the insulating rod is provided with an insulating wire clamping block 5.1, and the wire clamping groove is arranged on the insulating wire clamping block.
As shown in fig. 1, the mounting bracket is provided with a locking and fixing device 6, and the locking and fixing device is used for locking and fixing the mounting bracket on the bracket where the insulator is located. The locking fixing device comprises a clamping groove 6.1, a locking screw hole and a locking bolt 6.2, wherein the opening of the clamping groove is arranged at the top of the mounting bracket, the locking screw hole is arranged at the top of the mounting bracket and is communicated with the clamping groove, and the locking bolt 6.2 is matched with the locking screw hole. In this embodiment, the number of locking screw holes is one or more, and the locking bolts are in one-to-one correspondence with the locking screw holes.
The method comprises the following specific operations that in the first step, a mounting bracket is mounted and fixed on a cross arm where an insulator to be replaced is located, wherein the cross arm where the insulator to be replaced is located is placed in a clamping groove, and the mounting bracket is hung on the cross arm through the matching of the clamping groove and the cross arm; and then the mounting bracket is mounted and fixed on the cross arm where the insulator to be replaced is located by tightening the locking bolt.
In one implementation manner of this embodiment, the driving executing mechanism is a driving motor disposed on the mounting bracket, and the driving motor drives the first rotating seat to rotate, so as to drive the first electric push rod to rotate.
In another implementation of this embodiment, as shown in fig. 1, the driving actuator 4 includes a second rotating seat 4.1 rotatably disposed on the mounting bracket and a second electric push rod 4.2 fixed on the second rotating seat. The shell of the second electric push rod is fixed on the second rotating seat. The push rod of the second electric push rod is hinged with the shell of the first electric push rod. The first rotating seat is parallel to the rotating shaft of the second rotating seat. The first electric push rod is driven to rotate through the expansion and contraction of the push rod of the second electric push rod.
Specific embodiment II: the rest of the structure of this embodiment is different from the first embodiment in that,
as shown in fig. 2 and 3, a working method for replacing an insulator in live working further comprises extending an anti-rotation safety device 9. The extending anti-rotation safety device comprises a torsion spring, a clamping plate accommodating groove 9.4 arranged on the outer side surface of the insulating rod, a rotating clamping plate 9.6 with one end rotatably arranged in the clamping plate accommodating groove through a shaft rod 9.5 and a substrate fixed on the mounting bracket. The base plate is located one side of the insulating rod, and the base plate is perpendicular to the rotating shaft of the first rotating seat. The base plate comprises a flat plate part 9.1 and a clamping groove part 9.2 which are distributed along the axial direction of the insulating rod, and the flat plate part is positioned between the first rotating seat and the clamping groove part. The side surface of the flat plate part facing the edge rod is a plane. A plurality of radial clamping grooves 9.3 are arranged on one side face of the clamping groove part, which faces the edge rod. The radial clamping grooves are circumferentially distributed around the rotating shaft of the first rotating seat. The length direction of the radial clamping groove extends along the radial direction of the rotating shaft of the first rotating seat. In this embodiment, the angle at which the driving actuator drives the first electric putter to rotate about the rotation axis of the first rotation seat is 30-90 degrees, for example, the angle at which the driving actuator drives the first electric putter to rotate about the rotation axis of the first rotation seat is 30 degrees or 40 degrees or 50 degrees or 60 degrees or 70 degrees or 80 degrees or 90 degrees. The base plate is fan-shaped, and the centre of a circle of the base plate coincides with the rotation axis of the first rotating seat. The angular radian of the base plate corresponds to the angle at which the second electric push rod drives the first electric push rod to rotate around the rotating shaft of the first rotating seat, in this embodiment, the angular radian of the base plate is 30-90 degrees, and the number of the radial clamping grooves is 10-25.
The notch of the clamping plate accommodating groove faces to the substrate. The other end of the rotating clamping plate is propped against the base plate under the action of the torsion spring. In this embodiment, the shaft is perpendicular to the rotation axis of the first rotating seat, the rotating clamping plate is perpendicular to the shaft, the rotating clamping plate is parallel to the axis of the insulating rod, and the rotating clamping plate is parallel to the rotation axis of the first rotating seat. One end of the rotating clamping plate close to the shaft rod is located between the first electric push rod and the other end of the rotating clamping plate. The other end of the rotary clamping plate is semicircular.
When the push rod of the first electric push rod is in a contracted state, the other end of the rotating clamping plate is propped against the side face of the flat plate part of the base plate under the action of the torsion spring.
As shown in fig. 2, when the push rod of the first electric push rod is in an extended state, the other end of the rotating clamping plate is abutted against the side surface of the clamping groove part of the base plate or clamped into one of the radial clamping grooves under the action of the torsion spring.
In this embodiment, the state in which the push rod of the first electric push rod is contracted refers to a state in which the push rod of the first electric push rod is completely contracted into the housing of the first electric push rod. The push rod of the first electric push rod being in the extended state refers to a state when the push rod of the first electric push rod is completely extended out of the housing of the first electric push rod.
In the first embodiment, although the live working insulator replacement operation method can be used for realizing the live working insulator replacement operation, an operator is required to operate strictly according to the operation and use steps, if misoperation or incorrect control occurs, potential safety hazards may occur, for example, in the second step, the operator does not control the push rod of the first electric push rod to be in a contracted state, the push rod of the first electric push rod is in an extended state, the third step is directly operated, the driving executing mechanism is controlled to work, the first electric push rod is driven to rotate around the rotating shaft of the first rotating seat, and the problems that the push rod or the insulation clamping wire of the first electric push rod collides with the wire, the wire is damaged and the like may occur; or in the operations of the sixth step and the seventh step, the operator mistakenly controls the driving execution mechanism to work, and drives the first electric push rod to rotate around the rotating shaft of the first rotating seat, so that the wire supported on the insulating wire clamping piece shakes and contacts with an operator, potential safety hazards are generated, and even the wire supported on the insulating wire clamping piece is separated from the wire clamping groove and falls off, so that the potential safety hazards are generated. In order to solve the problems, the scheme is provided with the extending anti-rotation safety device, which can effectively solve the problems under the condition that the normal operation of an operation method for replacing the insulator in live working is not affected, in particular,
when the push rod of the first electric push rod is in an extending state, the other end of the rotating clamping plate is propped against the side surface of the clamping groove part of the substrate or is clamped into one of the radial clamping grooves under the action of the torsion spring, and if the other end of the rotating clamping plate is propped against one of the radial clamping grooves under the action of the torsion spring at the moment, the first electric push rod can be locked to rotate around the first rotating seat through the rotating clamping plate, and at the moment, even if the misoperation of the driving executing mechanism occurs, the first electric push rod can not rotate around the rotating shaft of the first rotating seat; if the other end of the rotating clamping plate is propped against the side surface of the clamping groove part of the substrate under the action of the torsion spring, and even if the error control driving executing mechanism works, the first electric push rod is driven to rotate around the rotating shaft of the first rotating seat, after the first electric push rod rotates for a certain angle, the rotating clamping plate is aligned with one radial clamping groove, and the other end of the rotating clamping plate is propped against one radial clamping groove under the action of the torsion spring, so that the first electric push rod is locked to rotate around the first rotating seat, and the first electric push rod is prevented from continuously rotating; therefore, the push rod of the first electric push rod is in an extending state, the driving executing mechanism is controlled to work, the first electric push rod is driven to rotate around the rotating shaft of the first rotating seat, the problem that the push rod or the insulating wire clamping piece of the first electric push rod collides with a wire occurs, in the operation of the fifth step, an operator mistakenly controls the driving executing mechanism to work, the first electric push rod is driven to rotate around the rotating shaft of the first rotating seat, the wire supported on the insulating wire clamping piece shakes and contacts with operators, potential safety hazards are generated, and even the wire supported on the insulating wire clamping piece is led to deviate from and fall off from the wire clamping groove, so that the potential safety hazards are generated.
Meanwhile, as the length direction of the radial clamping groove extends along the radial direction of the rotating shaft of the first rotating seat, the expansion and contraction of the push rod of the first electric push rod can not be influenced even if the other end of the rotating clamping plate is propped in one of the radial clamping grooves under the action of the torsion spring, and the normal operation of the operation method for replacing the insulator in live working can not be influenced.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any simple modification, variation and equivalent transformation of the above embodiment according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (10)
1. A working method for replacing an insulator in live working is characterized in that the working method for replacing the insulator in live working adopts an insulator replacing device to work, the insulator replacing device comprises a mounting bracket, a first rotating seat rotatably arranged on the mounting bracket, a first electric push rod fixed on the first rotating seat, a driving executing mechanism for driving the first electric push rod to rotate around a rotating shaft of the first rotating seat, an insulating wire clamping piece fixed on the push rod of the first electric push rod and a wire clamping groove arranged on the insulating wire clamping piece,
the operation method for replacing the insulator in live working sequentially comprises the following steps:
firstly, mounting and fixing a mounting bracket on a cross arm where an insulator to be replaced is located;
secondly, controlling the push rod of the first electric push rod to be in a contracted state so that the insulating wire clamping piece is positioned below a wire on the insulator to be replaced;
thirdly, controlling the driving executing mechanism to work, and driving the first electric push rod to rotate around the rotating shaft of the first rotating seat so as to align the wire clamping groove with the wire on the insulator to be replaced; then, controlling the push rod of the first electric push rod to extend out to drive the insulating wire clamping piece to move upwards, enabling the wires on the insulator to be replaced to enter the wire clamping groove, and then controlling the first electric push rod to stop working;
fourthly, an operator wears the insulating glove and cuts the binding wire used for binding the wire on the insulator to be replaced through the insulating wire cutting pliers;
fifthly, controlling the push rod of the first electric push rod to extend out to drive the insulating wire clamping piece to move upwards, separating the lead from the top groove of the insulator to be replaced, and supporting the lead on the insulating wire clamping piece;
sixthly, the insulator to be replaced is detached and a new insulator is replaced;
seventhly, controlling the push rod of the first electric push rod to shrink so that the lead supported on the insulating wire clamping piece is clamped into the top groove of the new insulator; then, the wire is bound and fixed on the new insulator through the binding wire.
2. The method for replacing insulators in live working according to claim 1, wherein the insulating wire clamping piece comprises an insulating rod, the insulating rod and a push rod of the first electric push rod are coaxially distributed, one end of the insulating rod is fixed at the end part of the push rod of the first electric push rod, and the wire clamping groove is formed in the other end of the insulating rod.
3. The method for replacing the insulator by live working according to claim 2, further comprising an extending anti-rotation safety device, wherein the extending anti-rotation safety device comprises a torsion spring, a clamping plate accommodating groove arranged on the outer side surface of the insulating rod, a rotating clamping plate with one end rotatably arranged in the clamping plate accommodating groove through a shaft rod and a base plate fixed on the mounting bracket, the base plate is positioned on one side of the insulating rod and is perpendicular to the rotating shaft of the first rotating seat, the base plate comprises a flat plate part and a clamping groove part which are axially distributed along the insulating rod, the flat plate part is positioned between the first rotating seat and the clamping groove part, one side surface of the flat plate part facing the edge rod is a plane, a plurality of radial clamping grooves are formed on one side surface of the clamping groove part facing the edge rod, each radial clamping groove is circumferentially distributed around the rotating shaft of the first rotating seat, the length direction of each radial clamping groove extends along the radial direction of the rotating shaft of the first rotating seat, the notch of the clamping plate accommodating groove faces the base plate, and the other end of the rotating clamping plate abuts against the base plate under the action of the torsion spring;
when the push rod of the first electric push rod is in a contracted state, the other end of the rotating clamping plate is propped against the side surface of the flat plate part of the base plate under the action of the torsion spring;
when the push rod of the first electric push rod is in an extending state, the other end of the rotating clamping plate is propped against the side face of the clamping groove part of the base plate or clamped into one of the radial clamping grooves under the action of the torsion spring.
4. A method of replacing an insulator in live line work according to claim 1, 2 or 3, wherein the mounting bracket is provided with a locking and fixing device for locking and fixing the mounting bracket to the bracket on which the insulator is located, and the mounting bracket is mounted and fixed to the cross arm on which the insulator to be replaced is located by the locking and fixing device in the first step.
5. The method for replacing an insulator with hot-line work according to claim 4, wherein the locking and fixing device comprises a clamping groove with a downward opening arranged at the top of the mounting bracket, a locking screw hole arranged at the top of the mounting bracket and communicated with the clamping groove, and a locking bolt matched with the locking screw hole.
6. The method for replacing an insulator in live working according to claim 5, wherein in the first step, the mounting bracket is mounted and fixed on the cross arm where the insulator to be replaced is located, the cross arm where the insulator to be replaced is located is placed in the clamping groove, and the mounting bracket is hung on the cross arm through the matching of the clamping groove and the cross arm; and then the mounting bracket is mounted and fixed on the cross arm where the insulator to be replaced is located by tightening the locking bolt.
7. A method of replacing insulators in live working according to claim 1, 2 or 3, wherein the drive actuator is a drive motor provided on a mounting bracket.
8. A method of replacing insulators in live working according to claim 1, 2 or 3, wherein the driving actuator comprises a second rotating seat rotatably provided on the mounting bracket and a second electric push rod fixed on the second rotating seat, and the push rod of the second electric push rod is hinged with the housing of the first electric push rod.
9. A method according to claim 1, 2 or 3, wherein in the third step, after the wire on the insulator to be replaced enters the wire clamping groove, and before the wire contacts the groove bottom of the wire clamping groove, the first electric push rod is controlled to stop working.
10. A method of replacing an insulator with live working according to claim 1, 2 or 3, wherein the seventh step is followed by the eighth step of removing the mounting bracket from the cross arm by the operator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN104538889A (en) * | 2014-12-03 | 2015-04-22 | 国家电网公司 | Live-line replacing method of straight pole insulator of distribution network line |
| CN108565778A (en) * | 2018-06-12 | 2018-09-21 | 国网辽宁省电力有限公司朝阳供电公司 | A kind of livewire work 10kV linear insulators changer and application method |
| CN208272497U (en) * | 2018-06-12 | 2018-12-21 | 国网辽宁省电力有限公司朝阳供电公司 | A kind of livewire work 10kV linear insulator changer |
| KR20210016895A (en) * | 2019-08-06 | 2021-02-17 | 한국전력공사 | Indirect hot-line working method using supporting bar for indirect hot-line work |
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| CN104538889A (en) * | 2014-12-03 | 2015-04-22 | 国家电网公司 | Live-line replacing method of straight pole insulator of distribution network line |
| CN108565778A (en) * | 2018-06-12 | 2018-09-21 | 国网辽宁省电力有限公司朝阳供电公司 | A kind of livewire work 10kV linear insulators changer and application method |
| CN208272497U (en) * | 2018-06-12 | 2018-12-21 | 国网辽宁省电力有限公司朝阳供电公司 | A kind of livewire work 10kV linear insulator changer |
| KR20210016895A (en) * | 2019-08-06 | 2021-02-17 | 한국전력공사 | Indirect hot-line working method using supporting bar for indirect hot-line work |
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