CN210167720U - Pin taking device for live replacement of 220kV suspension insulator string - Google Patents
Pin taking device for live replacement of 220kV suspension insulator string Download PDFInfo
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- CN210167720U CN210167720U CN201921506879.1U CN201921506879U CN210167720U CN 210167720 U CN210167720 U CN 210167720U CN 201921506879 U CN201921506879 U CN 201921506879U CN 210167720 U CN210167720 U CN 210167720U
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Abstract
The utility model belongs to the technical field of electric power, especially, relate to a take round pin ware of taking of 220kV insulator chain that dangles with electricity change, have crash bar (20), connecting bolt (21), mobile jib (22), first connecting rod (23), third connecting rod (24), second connecting rod (25), hit head (26), arc connecting rod (27), fourth connecting rod (28), wide plate (29). The utility model discloses mainly solved and changed 220kV among the prior art problem that the insulator chain inefficiency that dangles with electricity. The utility model discloses following main beneficial technological effect has: the 220kV suspension insulator string is quickly replaced in an electrified way, so that the repair time is saved, and the working time of workers is shorter, the labor intensity is lower and the safety is higher; the power supply is more timely, and the power supply efficiency and the repair rate are higher.
Description
Technical Field
The utility model belongs to the technical field of electric power, especially, relate to a take round pin ware of taking of 220kV insulator chain that dangles is changed with electricity.
Background
In the prior art, a plurality of insulators in a 220kV suspension insulator string are spliced together, the height of the suspension insulator string can reach several meters, cracking and damage are frequent in the severe environment of open air, high temperature and high pressure, and in order to supply power normally, the suspension insulator string needs to be repaired in time when the suspension insulator string is abnormal.
As shown in fig. 1, a connection fitting 3 and a pin 4 in the prior art are provided, where the connection fitting 3 is composed of a connection bowl 31 and a fixing block 33 located below the connection bowl 31 and vertically connected to a lower surface of the connection bowl 31, the fixing block 33 is provided with a fixing hole 331, the connection bowl 31 is provided with an opening 32 extending downward from an upper surface, the opening 32 does not penetrate through the lower surface of the connection bowl 31, the opening 32 is composed of an upper accommodating cavity 321 located at an upper portion and a lower accommodating cavity 322 located at a lower portion, the upper accommodating cavity 321 is communicated with the lower accommodating cavity 322, the upper accommodating cavity 321 and the lower accommodating cavity 322 both penetrate through a front surface 311 of the connection bowl 31, the upper accommodating cavity 321 and the lower accommodating cavity 322 are seen from the front surface 311, a width of the lower accommodating cavity 322 is greater than a width of the upper accommodating cavity 321, an ultra-wide portion is located outside two sides of the upper accommodating cavity 321, and the lower accommodating cavity 322 penetrates through a rear surface.
The pin 4 in the prior art is of a bilateral symmetry structure and consists of a left side and a right side; the left side of the hook is composed of a left hook 411, a first connecting strip 412, a second connecting strip 413, a third connecting strip 414 and a fourth connecting strip 415 which are connected in sequence, the middle of the fourth connecting strip 415 is approximately straight, and gaps are reserved among the left hook 411, the first connecting strip 412, the second connecting strip 413 and the fourth connecting strip 415; the right side of the hook is composed of a right hook 401, a fifth connecting strip 402, a sixth connecting strip 403, a seventh connecting strip 404 and an eighth connecting strip 405 which are connected in sequence, the middle of the eighth connecting strip 405 is approximately straight, and gaps are reserved among the right hook 401, the fifth connecting strip 402, the sixth connecting strip 403 and the eighth connecting strip 405; the other end of the fourth connecting strip 415 is connected with the other end of the eighth connecting strip 405 in a bending way, and a gap is formed between the fourth connecting strip 415 and the eighth connecting strip 405; the pin 4 has greater toughness; the unconnected head of the left hook 411 is farther away from the fourth connecting strip 415 than the first connecting strip 412, the second connecting strip 413 and the third connecting strip 414; the unconnected head of the right hook 401 is farther from the eighth connecting bar 405 than the fifth connecting bar 402, the sixth connecting bar 403, and the seventh connecting bar 404; the pin is also referred to as a W-spring pin.
As shown in fig. 2, a pin removing pliers 1 in the prior art, also called pin removing pliers, includes an opening and closing pliers mechanism 12, a pliers handle 13, a rotating member 15, and a pliers head 14, and one end of the opening and closing pliers mechanism 12 has a connecting screw 11.
In the actual operation of changing 220kV suspension insulator string with electricity, when the opening direction of connecting the bowl head is along the line direction, live working personnel usually adopt pin pulling pincers to carry out the operation, pin pulling pincers and insulator string are mostly in mutually perpendicular state during the operation, and are in same horizontal state with W type spring pin, pin pulling pincers need carry out many times the exploratory probing alignment of searchability before successfully embedding the bowl head link plate because of receiving the field of vision blind area during the operation process, influence such as ageing corrosion of W type spring pin, carry out the up-and-down displacement deviation of W type spring pin of uncontrollable among the in-process of other operations after embedding the big mouth of bowl head link plate, the stability of its operation is relatively poor, the success rate can't be guaranteed. Meanwhile, when live working is carried out on site, an operator is at a high position and must constantly keep the safety distance between a human body, an insulating tool and a live body, the W-shaped spring pin is difficult to smoothly and effectively take out due to small action amplitude and limited moving space of the operator, the operator can only poke and knock the W-shaped spring pin in a groove of an insulator steel cap, a single-joint socket or a metal end part by using an insulating operating rod, and the W-shaped spring pin cannot be effectively fixed by a pin pulling clamp during installation, so that the W-shaped spring pin is easy to automatically fall off from the pin pulling clamp during the extension and operation of the insulating operating rod, and the success rate of picking and installing the W-shaped spring pin is less than 50%. So that the live working time is long and the safety risk is high.
In the operation and maintenance process of the high-voltage transmission main network, the normalized live working is an important technical means for ensuring the normal operation of the transmission line, however, the requirement of the live working on the technical performance is very high, the labor intensity of the operating personnel is very high, and the working process has extremely high danger. In the operation site for live replacement of the 220kV line tangent tower suspension insulator string, two-bit ground potential operators in the air face a strong-current and electromagnetic radiation environment, and the longer the live operation is, the higher the safety risk is. The influence of strong electricity and magnetism environment formed around the high-voltage live wire on human body is mainly reflected in (1) the influence of static inductance on human body. Because the power frequency alternating current has the characteristic of slow change, the power frequency alternating current electric field can be regarded as an electrostatic field, so that the problem of electrostatic induction also exists in the power frequency electric field, and the electric shock is generated when a human body is positioned at the ground potential and contacts a conductor which is positioned in the strong electric field and is insulated from the ground. The electric shock has an important relation with the discharge energy, and after the energy reaches a certain value, a human body feels stabbing pain, so that the normal work of workers is influenced to a great extent. (2) The influence of the current on the human body. During the operation of the transmission line, transient and steady electric shocks can be generated, so that some current is generated, and serious harm is caused to a human body. When a person is in an environment with electric work, the person can contact a conductor located in a strong electric field, the conductor is insulated from the ground, and when the person contacts the conductor, the charge on the conductor can generate large energy release, so that transient clicking on the human body is triggered. The larger the amount of discharge through the human body, the greater the impact on the human body, which is also affected by steady-state clicks. (3) The influence of strong electric field to human body. The power frequency electric field can be generated in the operation of the power transmission line, the larger the voltage grade is, the larger the strength of the electric field is, and meanwhile, the distance of the conducting wire can also have great influence on the strength of the electric field. In a strong electric field, people can be affected to generate uncomfortable feelings such as wind blowing, abnormal sound, acupuncture and the like. In the practice of live working, people entering the electric field can affect the electric field, and the electric field is distorted. More seriously, the position of the worker working on the transmission line tower is closer to the transmission line, the electric field intensity is far greater than that of the ground, particularly, the worker working on a high tower and a wire faces greater danger, potential safety hazards are buried for the work of the worker, and the worker is likely to be injured or killed seriously.
Through a large amount of statistical analysis of the applicant, the plug-in pin is found to be the most main reason of the working duration of live replacement of the 220kV suspension insulator string. Mainly comprises the following steps: the direction of the big mouth of the bowl head hanging plate is in a blind area of a human vision field, and the trial and investigation can be only relied on; the grading ring is just above the bowl head, so that the operation is hindered and the visual field is influenced; only when the insulating operating rod keeps absolute level, the jaw can be just inserted into the large opening of the bowl head. Because the theory of operation who pulls out the round pin pincers is that the top of insulating bar is connected with the pitch arc guide rail, the upper arm and the underarm that pull out the round pin pincers are fixed respectively to guide rail two, pull out the round pin pincers and insert behind the socket clevis big mouth, operating personnel pulls back insulating bar, keep silent will be closed and bite W type spring catch, stop the pulling back, utilize the friction force of arc guide rail will keep silent and die to bite, at this moment, operating personnel just can try to pull out W type round pin, nevertheless can meet various problems in the in-service use: after the tension on the insulating operating rod is released, the rebound force of the engaged W-shaped spring pin is larger, the W-shaped spring pin is not stable enough only by the friction force of the arc-shaped guide rail, the jaw is tensioned to release the W-shaped spring pin, and the attempt to take the pin fails; force is applied to the arc-shaped guide rail when the pin is taken, so that the stress balance of the arc-shaped guide rail is broken, a jaw of the pin pulling pliers is loosened, the W-shaped spring pin is rebounded and locked, and the attempt on taking the pin fails; the W-shaped pin can lose elasticity due to long-term wind, rain and rain, and after the jaw is tightly bitten, the direction of a small opening of the bowl head hanging plate is still in a locking state, so that the W-shaped spring pin is difficult to pull out. The situation that the W-shaped spring pin is loosened and falls after being taken out is that the insulating operating rod is about 3.1 meters and has certain flexibility, so that the W-shaped spring pin cannot shake up and down when moving, the stress balance of the pin pulling pliers is changed, and the W-shaped spring pin falls off after shaking off the occlusal force of the pin pulling pliers. The reason that the ball head cannot enter the socket hanging plate once can be as follows: the new insulator is not matched with the old insulator in model; the pin pulling pliers are not provided with a socket hanging plate righting fixing device and can only be righted by an insulating rod; after the bulb is connected with the socket hanging plate, the same situation can be met during dismantling when the operation of installing the W-shaped spring pin by using the pin pulling pliers, due to the fact that a view blind area and a sight line are blocked, if the W-shaped spring pin of the jaw is not aligned with a large opening of the socket, the W-shaped spring pin can be touched and shifted or even dropped, an insulating operating rod needs to be retracted for correction or repair, and the process needs to be repeated until the last attempt is successful. Through the observation and analysis, the fact that the operation time of replacing the 220kV suspension insulator string in an electrified way is prolonged due to poor practicability of the pin removing pliers is directly caused, repeated trial operation directly causes the efficiency of dismantling and installing the W-shaped spring pin to be low, and the defects in design directly cause errors and outburst situations. The pin pulling pliers in the prior art use a tiger's mouth to bite the spring pin and clamp the spring pin by the tensile inertia. The defects of the method are as follows: during operation, an operator needs to insert the pin pulling pliers into the W pin tail nose and pull the pin pulling pliers backwards to pull out the spring pin, and due to the fact that the spring pin is operated aloft, the operator holds the small jaw at the tail end of the operating rod of dozens of kilograms to bite the V-shaped tail nose of the W pin in the bowl mouth, the operator needs to support a large number of limbs to complete the pin pulling action, and the labor intensity is high and the efficiency is low.
Therefore, it is necessary to shorten the working time for live replacement of the 220kV suspension insulator string.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model aims to disclose a take off round pin ware of 220kV insulator chain that dangles is changed with electricity, it adopts following technical scheme to realize.
A pin extractor for replacing a 220kV suspension insulator string in a charged manner is provided with an anti-collision rod, a connecting bolt, a main rod, a first connecting rod, a third connecting rod, a second connecting rod, a collision head, an arc-shaped connecting rod, a fourth connecting rod and a wide plate; one end of a connecting bolt is fixedly connected with one end of a main rod, external threads are arranged outside the connecting bolt, the other end of the main rod is fixedly connected with one end of a first connecting rod, the other end of the main rod is fixedly connected with one end of a third connecting rod, the main rod is coaxially arranged with the third connecting rod, the first connecting rod and the second connecting rod are coaxially arranged, the first connecting rod and the second connecting rod are respectively positioned on two sides of the main rod, the first connecting rod is perpendicular to the main rod, a collision head is connected to the other end of the second connecting rod, the collision head is of a cylindrical structure and perpendicular to the second connecting rod, the collision head is vertically and equally divided by the second connecting rod, a wide plate is connected to the other end of the third connecting rod, the width of the wide plate is larger than the outer diameter of the third connecting rod; one end of an arc-shaped connecting rod is fixedly connected with a third connecting rod, the joint of the third connecting rod and the arc-shaped connecting rod is close to one end of the third connecting rod, the other end of the arc-shaped connecting rod is bent upwards to form an arc shape, one end of a fourth connecting rod is fixedly connected with one end close to the first connecting rod, the other end of the fourth connecting rod is fixedly connected with one end close to the arc-shaped connecting rod, the fourth connecting rod is perpendicular to the first connecting rod and parallel to the third connecting rod, the plane where the axis of the arc-shaped connecting rod is located is perpendicular to the axis of the third connecting rod, one end of a collision-proof rod is fixed at the position, close to the other end, of the third connecting rod, the collision-proof rod is perpendicular to the third connecting; the anti-collision rod, the connecting bolt, the main rod, the first connecting rod, the third connecting rod, the second connecting rod, the collision head, the arc-shaped connecting rod, the fourth connecting rod and the wide plate are all made of metal materials and are welded into an integral structure.
The pin taking device for replacing the 220kV suspension insulator string in a charged manner is characterized by further comprising an insulating operating rod, and one end of the insulating operating rod is connected with the connecting bolt through threads.
Further, the pin extractor for replacing the 220kV suspension insulator string in a charged manner is characterized in that the insulating operating rod is made of insulating rubber.
Further, the pin extractor for replacing the 220kV suspension insulator string in a charged manner is characterized by not comprising an anti-collision rod.
Further, the pin extractor for replacing the 220kV suspension insulator string in a charged manner is characterized by not comprising a fourth connecting rod.
Furthermore, the pin extractor for replacing the 220kV suspension insulator string in a charged manner is characterized by being provided with no anti-collision rod and no fourth connecting rod.
The utility model discloses following main beneficial technological effect has: the 220kV suspension insulator string is quickly replaced in an electrified way, so that the repair time is saved, and the working time of workers is shorter, the labor intensity is lower and the safety is higher; the power supply is more timely, and the power supply efficiency and the repair rate are higher.
Drawings
Fig. 1 is a schematic perspective view of a connecting fitting and a pin in the prior art.
Fig. 2 is a schematic perspective view of a pin removing forceps in the prior art.
Fig. 3 is a schematic perspective view of an embodiment 1 of the present invention.
Fig. 4 is a schematic perspective view of embodiment 2 of the present invention.
Fig. 5 is a schematic perspective view of embodiment 3 of the present invention.
Fig. 6 is a schematic perspective view of embodiment 4 of the present invention.
Fig. 7 is a schematic perspective view of embodiment 5 of the present invention.
Fig. 8 is a schematic view of a partial three-dimensional structure in application of embodiment 1 of the present invention.
Fig. 9 is an enlarged view of the area a of fig. 8.
Fig. 10 is a schematic perspective view of a rear part in an application of embodiment 1 of the present invention.
Fig. 11 is an enlarged view of the region B of fig. 10.
In the figure: 2-live replacement 220kV dangles insulator chain get round pin ware, 20-crash bar, 21-connecting bolt, 22-mobile jib, 23-first connecting rod, 24-third connecting rod, 25-second connecting rod, 26-collision head, 27-arc connecting rod, 28-fourth connecting rod, 29-wide plate, insulating bar 211, 5-extension anchor clamps, 6-fixing bolt, 7-cable, 8-knot bolt, 9-insulator connecting rod, 91-insulator, 92-insulator transition pole, 93-insulator connector.
Detailed Description
Examples 1
Referring to fig. 3, a pin extractor 2 for replacing a 220kV suspension insulator string in a live line comprises an anti-collision rod 20, a connecting bolt 21, a main rod 22, a first connecting rod 23, a third connecting rod 24, a second connecting rod 25, a collision head 26, an arc-shaped connecting rod 27, a fourth connecting rod 28 and a wide plate 29; one end of a connecting bolt 21 is fixedly connected with one end of a main rod 22, external threads are arranged outside the connecting bolt 21, the other end of the main rod 22 is fixedly connected with one end of a first connecting rod 23, the other end of the main rod 22 is fixedly connected with one end of a third connecting rod 24, the other end of the main rod 22 is fixedly connected with one end of a second connecting rod 25, the main rod 22 and the third connecting rod 24 are coaxially arranged, the first connecting rod 23 and the second connecting rod 25 are respectively positioned at two sides of the main rod 22, the first connecting rod 23 is perpendicular to the main rod 22, a collision head 26 is connected at the other end of the second connecting rod 25, the collision head 26 is in a cylindrical structure and perpendicular to the second connecting rod 25, the collision head 26 is vertically divided by the second connecting rod 25 in a halving mode, a wide plate 29 is connected at the other end of the third connecting rod 24; one end of the arc-shaped connecting rod 27 is fixedly connected with the third connecting rod 24, the joint of the third connecting rod 24 and the arc-shaped connecting rod 27 is close to one end of the third connecting rod 24, the other end of the arc-shaped connecting rod 27 is bent upwards to form an arc shape, one end of the fourth connecting rod 28 is fixedly connected with one end close to the first connecting rod 23, the other end of the fourth connecting rod 28 is fixedly connected with one end close to the arc-shaped connecting rod 27, the fourth connecting rod 28 is perpendicular to the first connecting rod 23 and parallel to the third connecting rod 24, the plane of the axis of the arc-shaped connecting rod 27 is the axis perpendicular to the third connecting rod 24, one end of the anti-collision rod 20 is fixed at the other end close to the third connecting rod 24, the anti-collision rod 20 is perpendicular to the third connecting rod 24 and parallel to the first connecting rod 23, and; the anti-collision rod 20, the connecting bolt 21, the main rod 22, the first connecting rod 23, the third connecting rod 24, the second connecting rod 25, the collision head 26, the arc-shaped connecting rod 27, the fourth connecting rod 28 and the wide plate 29 are all made of metal materials and are welded into an integral structure.
EXAMPLES example 2
Referring to fig. 4, a pin extractor 2 for replacing a 220kV suspension insulator string in a live line manner comprises a connecting bolt 21, a main rod 22, a first connecting rod 23, a third connecting rod 24, a second connecting rod 25, a ram 26, an arc-shaped connecting rod 27, a fourth connecting rod 28 and a wide plate 29; one end of a connecting bolt 21 is fixedly connected with one end of a main rod 22, external threads are arranged outside the connecting bolt 21, the other end of the main rod 22 is fixedly connected with one end of a first connecting rod 23, the other end of the main rod 22 is fixedly connected with one end of a third connecting rod 24, the other end of the main rod 22 is fixedly connected with one end of a second connecting rod 25, the main rod 22 and the third connecting rod 24 are coaxially arranged, the first connecting rod 23 and the second connecting rod 25 are respectively positioned at two sides of the main rod 22, the first connecting rod 23 is perpendicular to the main rod 22, a collision head 26 is connected at the other end of the second connecting rod 25, the collision head 26 is in a cylindrical structure and perpendicular to the second connecting rod 25, the collision head 26 is vertically divided by the second connecting rod 25 in a halving mode, a wide plate 29 is connected at the other end of the third connecting rod 24; one end of the arc-shaped connecting rod 27 is fixedly connected with the third connecting rod 24, the joint of the third connecting rod 24 and the arc-shaped connecting rod 27 is close to one end of the third connecting rod 24, the other end of the arc-shaped connecting rod 27 is bent upwards to form an arc shape, one end of the fourth connecting rod 28 is fixedly connected with one end close to the first connecting rod 23, the other end of the fourth connecting rod 28 is fixedly connected with one end close to the arc-shaped connecting rod 27, the fourth connecting rod 28 is perpendicular to the first connecting rod 23 and parallel to the third connecting rod 24, the plane where the axis of the arc-shaped connecting rod 27 is located is perpendicular to the axis of the third connecting rod 24, and the connecting bolt 21, the main rod 22, the first connecting rod 23, the third connecting rod 24, the second connecting rod 25, the collision head 26, the arc-shaped connecting rod 27, the fourth connecting rod 28.
EXAMPLE 3
Referring to fig. 5, a pin extractor 2 for replacing a 220kV suspension insulator string in a live line manner comprises a connecting bolt 21, a main rod 22, a first connecting rod 23, a third connecting rod 24, a second connecting rod 25, a ram 26, an arc-shaped connecting rod 27 and a wide plate 29; one end of a connecting bolt 21 is fixedly connected with one end of a main rod 22, external threads are arranged outside the connecting bolt 21, the other end of the main rod 22 is fixedly connected with one end of a first connecting rod 23, the other end of the main rod 22 is fixedly connected with one end of a third connecting rod 24, the other end of the main rod 22 is fixedly connected with one end of a second connecting rod 25, the main rod 22 and the third connecting rod 24 are coaxially arranged, the first connecting rod 23 and the second connecting rod 25 are respectively positioned at two sides of the main rod 22, the first connecting rod 23 is perpendicular to the main rod 22, a collision head 26 is connected at the other end of the second connecting rod 25, the collision head 26 is in a cylindrical structure and perpendicular to the second connecting rod 25, the collision head 26 is vertically divided by the second connecting rod 25 in a halving mode, a wide plate 29 is connected at the other end of the third connecting rod 24; one end of the arc connecting rod 27 is fixedly connected with the third connecting rod 24, the joint of the third connecting rod 24 and the arc connecting rod 27 is close to one end of the third connecting rod 24, the other end of the arc connecting rod 27 is bent upwards to form an arc, and the plane where the axis of the arc connecting rod 27 is located is perpendicular to the axis of the third connecting rod 24; the connecting bolt 21, the main rod 22, the first connecting rod 23, the third connecting rod 24, the second connecting rod 25, the ram 26, the arc-shaped connecting rod 27 and the wide plate 29 are all made of metal and are welded into an integral structure.
EXAMPLE 4
Referring to fig. 6, a pin extractor 2 for replacing a 220kV suspension insulator string in a live line manner comprises an anti-collision rod 20, a connecting bolt 21, a main rod 22, a first connecting rod 23, a third connecting rod 24, a second connecting rod 25, a collision head 26, an arc-shaped connecting rod 27 and a wide plate 29; one end of a connecting bolt 21 is fixedly connected with one end of a main rod 22, external threads are arranged outside the connecting bolt 21, the other end of the main rod 22 is fixedly connected with one end of a first connecting rod 23, the other end of the main rod 22 is fixedly connected with one end of a third connecting rod 24, the other end of the main rod 22 is fixedly connected with one end of a second connecting rod 25, the main rod 22 and the third connecting rod 24 are coaxially arranged, the first connecting rod 23 and the second connecting rod 25 are respectively positioned at two sides of the main rod 22, the first connecting rod 23 is perpendicular to the main rod 22, a collision head 26 is connected at the other end of the second connecting rod 25, the collision head 26 is in a cylindrical structure and perpendicular to the second connecting rod 25, the collision head 26 is vertically divided by the second connecting rod 25 in a halving mode, a wide plate 29 is connected at the other end of the third connecting rod 24; one end of the arc-shaped connecting rod 27 is fixedly connected with the third connecting rod 24, the joint of the third connecting rod 24 and the arc-shaped connecting rod 27 is close to one end of the third connecting rod 24, the other end of the arc-shaped connecting rod 27 is bent upwards to form an arc shape, the plane of the axis of the arc-shaped connecting rod 27 is the axis perpendicular to the third connecting rod 24, one end of the anti-collision rod 20 is fixed at the position of the third connecting rod 24 close to the other end, the anti-collision rod 20 is perpendicular to the third connecting rod 24 and parallel to the first connecting rod 23, and the anti-collision rod 20 is positioned between the arc-shaped; the anti-collision rod 20, the connecting bolt 21, the main rod 22, the first connecting rod 23, the third connecting rod 24, the second connecting rod 25, the collision head 26, the arc-shaped connecting rod 27 and the wide plate 29 are all made of metal and are welded into an integral structure.
EXAMPLE 5
Referring to fig. 7 and fig. 3, a pin remover 2 for replacing a 220kV suspension insulator string in a live manner is substantially the same as embodiment 1, except that an insulating operating rod 211 is further provided, and one end of the insulating operating rod 211 is connected with a connecting bolt 21 through a thread.
Of course, the embodiments 2 to 4 may have the insulating operating rod 211 as in the present embodiment, and one end of the insulating operating rod 211 is connected to the connecting bolt 21 by a screw.
The insulating operating rod is made of insulating rubber.
The inventive principle and the using method of the present invention will be further described with reference to the drawings of the specification, please refer to fig. 3, fig. 8, fig. 9, fig. 10, and fig. 11, wherein the cable 7 passes through the cable passing holes of the pair of extension clamps 5, the fixing bolt 6 fixes the pair of extension clamps 5, and the cable 7 is located on the fixing bolt 6, the upper end of the extension clamp 5 has a through hole, the upper end of the pair of extension clamps 5 clamps the fixing block 33, the sealing bolt 8 passes through the through hole at the upper end of one extension clamp 5, then passes through the fixing hole 331 on the fixing block 33, and then passes through the through hole at the upper end of the other extension clamp 5, and fixes the fixing block 33 and the pair of extension clamps 5 together. One end of an insulator transition rod 92 is fixed on the insulator connecting rod 9, the other end of the insulator transition rod 92 is fixed with an insulator connector 93, the insulator transition rod 92 is positioned in the upper accommodating cavity 321, the insulator connector 93 is positioned in the lower accommodating cavity 322, the pin 3 is positioned in the lower accommodating cavity 322, the insulator connector 93 is positioned in a gap between the fourth connecting strip 415 and the eighth connecting strip 405, due to the interaction between the pin 4 and the connecting hardware fitting 3, the insulator connector 93 is firmly clamped by the fourth connecting strip 415 and the eighth connecting strip 405, the suspension string is formed by connecting a plurality of suspension insulators 91 in series, the suspension string is disassembled, and the insulator connector 93 needs to be taken out of the connecting hardware fitting 3 and the pin 4; after the suspension insulator 91 is replaced, the insulator connector 93 must be firmly engaged with the pin 4 to complete the replacement work.
When replacing the suspension insulator 91, the pin 4 is pushed backwards: the ram 26 abuts against the third connecting bar 414 and the seventh connecting bar 404 in the lower accommodating cavity 322 from the front surface 311, the other end of the first connecting rod 23 is knocked by an insulating hammer, the right hook 401 and the left hook 411 of the pin 4 extend out of the rear surface 312 of the hardware fitting 3, and the fourth connecting bar 415 and the eighth connecting bar 405 clamp the insulator connecting head 93 loosely until the insulator connecting head 93 and the insulator transition rod 92 can be taken out easily; then replacing the bad insulator; then the pin 4 is pushed forward: the insulator connector 93 of the lowermost suspension insulator 91 of the replaced suspension insulator string is placed into the lower accommodating cavity 322, the insulator transition rod 92 of the lowermost suspension insulator 91 is placed into the upper accommodating cavity 321, the wide plate 29 is tightly attached to the right hook 401 and the left hook 411, the ram 26 is knocked by an insulating hammer, and the fourth connecting strip 415 and the eighth connecting strip 405 clamp the insulator connector 93, so that the live-line quick replacement of the suspension insulator string is completed.
In the utility model, the anti-collision rod 20 is used for preventing the third connecting rod 24 from being collided in the use process; the purpose of the arc-shaped connecting rod 27 is to be matched with the first connecting rod 23, to support and the like when the connecting hardware fitting 3 is installed, and not to fall off from high altitude; the fourth link 28 is for strength; the arc-shaped connecting rod 27, the third connecting rod 23 and the fourth connecting rod 28 are matched, and the suspension insulator chain can also play a role of a prying tool in the replacement of the suspension insulator and the suspension insulator chain.
For better and faster alignment of the pin position, the main rod 22 can also be tethered, which can be pulled up to the link fitting.
The utility model creatively changes the improvement of the pin extractor in the prior art into a mode of not taking off the pin, thereby achieving the purposes of quick installation and disassembly, saving the repair time, and ensuring that the working time of workers is shorter, the labor intensity is lower and the workers are safer; the power supply is more timely, and the power supply efficiency and the repair rate are higher.
Through a large amount of data accumulation and statistics, the applicant compares the following with the data before improvement:
mean time to detach old insulator string (before modification): 35 minutes and 27 seconds;
average time for detaching old insulator string (the utility model discloses): 13 minutes and 38 seconds;
mean time to install new insulator string (before modification): 31 minutes and 42 seconds;
average time to install a new insulator string (the utility model discloses): 11 minutes and 21 seconds;
average probability of pin falling after removal (before modification): 30 percent;
the average probability that drops takes place for in-process round pin (the utility model discloses): 0;
average number of attempts by the pliers to insert into the lower housing cavity (before modification): 6 times;
the average number of times of the holding cavity is inserted by the head (the utility model discloses): 3 times;
average number of pin removal attempts after tightening of pin puller jaws (before modification): 9 times;
average number of attempts to knock out one end of a pin by a ram (the utility model discloses): 2 times.
Just because have the utility model discloses an improvement, the time of change has greatly been shortened.
The above-mentioned embodiments are merely preferred technical solutions of the present invention, and should not be construed as limitations of the present invention. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (6)
1. A pin extractor (2) for replacing a 220kV suspension insulator string in a charged manner is characterized by comprising an anti-collision rod (20), a connecting bolt (21), a main rod (22), a first connecting rod (23), a third connecting rod (24), a second connecting rod (25), a collision head (26), an arc-shaped connecting rod (27), a fourth connecting rod (28) and a wide plate (29); one end of a connecting bolt (21) is fixedly connected with one end of a main rod (22), external threads are arranged outside the connecting bolt (21), the other end of the main rod (22) is fixedly connected with one end of a first connecting rod (23), the other end of the main rod (22) is fixedly connected with one end of a third connecting rod (24), the other end of the main rod (22) is fixedly connected with one end of a second connecting rod (25), the main rod (22) and the third connecting rod (24) are coaxially arranged, the first connecting rod (23) and the second connecting rod (25) are respectively positioned at two sides of the main rod (22), the first connecting rod (23) is vertical to the main rod (22), a collision head (26) is connected with the other end of the second connecting rod (25), the collision head (26) is of a cylindrical structure and is vertical to the second connecting rod (25), the collision head (26) is vertically and equally divided by the second connecting rod (25), and a wide plate (29) is connected with, the width of the wide plate (29) is larger than the outer diameter of the third connecting rod (24), and the wide plate (29) is bent to be flat; one end of an arc-shaped connecting rod (27) is fixedly connected with a third connecting rod (24), the joint of the third connecting rod (24) and the arc-shaped connecting rod (27) is close to one end of the third connecting rod (24), the other end of the arc-shaped connecting rod (27) is bent upwards to form an arc shape, one end of a fourth connecting rod (28) is fixedly connected with one end close to a first connecting rod (23), the other end of the fourth connecting rod (28) is fixedly connected with one end close to the arc-shaped connecting rod (27), the fourth connecting rod (28) is perpendicular to the first connecting rod (23) and parallel to the third connecting rod (24), the plane where the axis of the arc-shaped connecting rod (27) is located is perpendicular to the axis of the third connecting rod (24), one end of an anti-collision rod (20) is fixed at the other end of the third connecting rod (24), the anti-collision rod (20) is perpendicular to the third connecting rod (24) and parallel to the first connecting rod (23), and the arc-collision rod (20) is located between the; the anti-collision rod (20), the connecting bolt (21), the main rod (22), the first connecting rod (23), the third connecting rod (24), the second connecting rod (25), the collision head (26), the arc-shaped connecting rod (27), the fourth connecting rod (28) and the wide plate (29) are all made of metal materials and are welded into an integral structure.
2. A pin extractor (2) for replacing a 220kV suspension insulator string in a charged manner is characterized by comprising a connecting bolt (21), a main rod (22), a first connecting rod (23), a third connecting rod (24), a second connecting rod (25), a ram (26), an arc-shaped connecting rod (27), a fourth connecting rod (28) and a wide plate (29); one end of a connecting bolt (21) is fixedly connected with one end of a main rod (22), external threads are arranged outside the connecting bolt (21), the other end of the main rod (22) is fixedly connected with one end of a first connecting rod (23), the other end of the main rod (22) is fixedly connected with one end of a third connecting rod (24), the other end of the main rod (22) is fixedly connected with one end of a second connecting rod (25), the main rod (22) and the third connecting rod (24) are coaxially arranged, the first connecting rod (23) and the second connecting rod (25) are respectively positioned at two sides of the main rod (22), the first connecting rod (23) is vertical to the main rod (22), a collision head (26) is connected with the other end of the second connecting rod (25), the collision head (26) is of a cylindrical structure and is vertical to the second connecting rod (25), the collision head (26) is vertically and equally divided by the second connecting rod (25), and a wide plate (29) is connected with, the width of the wide plate (29) is larger than the outer diameter of the third connecting rod (24), and the wide plate (29) is bent to be flat; one end of the arc connecting rod (27) is fixedly connected with the third connecting rod (24), the joint of the third connecting rod (24) and the arc connecting rod (27) is close to one end of the third connecting rod (24), the other end of the arc connecting rod (27) is bent upwards to form an arc, one end of the fourth connecting rod (28) is fixedly connected with one end close to the first connecting rod (23), the other end of the fourth connecting rod (28) is fixedly connected with one end close to the arc connecting rod (27), the fourth connecting rod (28) is vertical to the first connecting rod (23) and is parallel to the third connecting rod (24), the plane where the axis of the arc connecting rod (27) is located is vertical to the axis of the third connecting rod (24), the connecting bolt (21), the main rod (22), the first connecting rod (23), the third connecting rod (24), the second connecting rod (25), the collision head (26), the arc-shaped connecting rod (27), the fourth connecting rod (28) and the wide plate (29) are all made of metal and are welded into an integral structure.
3. A pin extractor (2) for replacing a 220kV suspension insulator string in a charged manner is characterized by comprising a connecting bolt (21), a main rod (22), a first connecting rod (23), a third connecting rod (24), a second connecting rod (25), a ram (26), an arc-shaped connecting rod (27) and a wide plate (29); one end of a connecting bolt (21) is fixedly connected with one end of a main rod (22), external threads are arranged outside the connecting bolt (21), the other end of the main rod (22) is fixedly connected with one end of a first connecting rod (23), the other end of the main rod (22) is fixedly connected with one end of a third connecting rod (24), the other end of the main rod (22) is fixedly connected with one end of a second connecting rod (25), the main rod (22) and the third connecting rod (24) are coaxially arranged, the first connecting rod (23) and the second connecting rod (25) are respectively positioned at two sides of the main rod (22), the first connecting rod (23) is vertical to the main rod (22), a collision head (26) is connected with the other end of the second connecting rod (25), the collision head (26) is of a cylindrical structure and is vertical to the second connecting rod (25), the collision head (26) is vertically and equally divided by the second connecting rod (25), and a wide plate (29) is connected with, the width of the wide plate (29) is larger than the outer diameter of the third connecting rod (24), and the wide plate (29) is bent to be flat; one end of the arc connecting rod (27) is fixedly connected with the third connecting rod (24), the joint of the third connecting rod (24) and the arc connecting rod (27) is close to one end of the third connecting rod (24), the other end of the arc connecting rod (27) is bent upwards to form an arc, and the plane of the axis of the arc connecting rod (27) is perpendicular to the axis of the third connecting rod (24); the connecting bolt (21), the main rod (22), the first connecting rod (23), the third connecting rod (24), the second connecting rod (25), the collision head (26), the arc-shaped connecting rod (27) and the wide plate (29) are all made of metal materials and are welded into an integral structure.
4. A pin extractor (2) for replacing a 220kV suspension insulator string in a charged manner is characterized by comprising an anti-collision rod (20), a connecting bolt (21), a main rod (22), a first connecting rod (23), a third connecting rod (24), a second connecting rod (25), a collision head (26), an arc-shaped connecting rod (27) and a wide plate (29); one end of a connecting bolt (21) is fixedly connected with one end of a main rod (22), external threads are arranged outside the connecting bolt (21), the other end of the main rod (22) is fixedly connected with one end of a first connecting rod (23), the other end of the main rod (22) is fixedly connected with one end of a third connecting rod (24), the other end of the main rod (22) is fixedly connected with one end of a second connecting rod (25), the main rod (22) and the third connecting rod (24) are coaxially arranged, the first connecting rod (23) and the second connecting rod (25) are respectively positioned at two sides of the main rod (22), the first connecting rod (23) is vertical to the main rod (22), a collision head (26) is connected with the other end of the second connecting rod (25), the collision head (26) is of a cylindrical structure and is vertical to the second connecting rod (25), the collision head (26) is vertically and equally divided by the second connecting rod (25), and a wide plate (29) is connected with, the width of the wide plate (29) is larger than the outer diameter of the third connecting rod (24), and the wide plate (29) is bent to be flat; one end of the arc-shaped connecting rod (27) is fixedly connected with the third connecting rod (24), the joint of the third connecting rod (24) and the arc-shaped connecting rod (27) is close to one end of the third connecting rod (24), the other end of the arc-shaped connecting rod (27) is bent upwards to form an arc shape, the plane where the axis of the arc-shaped connecting rod (27) is located is perpendicular to the axis of the third connecting rod (24), one end of the anti-collision rod (20) is fixed at the position, close to the other end, of the third connecting rod (24), the anti-collision rod (20) is perpendicular to the third connecting rod (24) and parallel to the first connecting rod (23), and the anti-collision rod (20) is located between the arc-shaped connecting rod (27); the anti-collision rod (20), the connecting bolt (21), the main rod (22), the first connecting rod (23), the third connecting rod (24), the second connecting rod (25), the collision head (26), the arc-shaped connecting rod (27) and the wide plate (29) are all made of metal materials and are welded into an integral structure.
5. The pin extractor for replacing the 220kV suspension insulator string in a charged manner according to claim 1 or claim 2, wherein the pin extractor is further provided with an insulating operating rod, and one end of the insulating operating rod is connected with the connecting bolt through threads.
6. The pin extractor for replacing a 220kV suspension insulator string in a charged manner as claimed in claim 5, wherein the insulating operating rod is made of insulating rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921506879.1U CN210167720U (en) | 2019-09-11 | 2019-09-11 | Pin taking device for live replacement of 220kV suspension insulator string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921506879.1U CN210167720U (en) | 2019-09-11 | 2019-09-11 | Pin taking device for live replacement of 220kV suspension insulator string |
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| Publication Number | Publication Date |
|---|---|
| CN210167720U true CN210167720U (en) | 2020-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921506879.1U Active CN210167720U (en) | 2019-09-11 | 2019-09-11 | Pin taking device for live replacement of 220kV suspension insulator string |
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| Country | Link |
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| CN (1) | CN210167720U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492388A (en) * | 2019-09-11 | 2019-11-22 | 国网湖北省电力有限公司鄂州供电公司 | A kind of split-pin device of charged for replacement 220kV suspension insulator |
-
2019
- 2019-09-11 CN CN201921506879.1U patent/CN210167720U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492388A (en) * | 2019-09-11 | 2019-11-22 | 国网湖北省电力有限公司鄂州供电公司 | A kind of split-pin device of charged for replacement 220kV suspension insulator |
| CN110492388B (en) * | 2019-09-11 | 2024-05-24 | 国网湖北省电力有限公司鄂州供电公司 | Pin remover for live replacement of 220kV suspension insulator string |
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