CN105958423B - The mechanism of arrester in groups and its application method of a kind of mechanical linkage - Google Patents

Abstract

The arrester mechanism in groups of of the invention and a kind of mechanical linkage, belong to electric power system arrester technical field.Technical scheme is：Interlocking manipulation dress bar（6）Both ends pass through two Limit Bearings（12）, positioned at rectangular through-hole（8）It is interior；The mechanical pull bar（7）Centre horizontal vertical be arranged on interlocking manipulation dress bar（6）Side, mechanical pull bar（7）Both ends be respectively equipped with separating brake draw ring（11）With combined floodgate draw ring（16）；The interlocking opening and closing supporting insulator（13）For three, three arresters are arranged on（5）Underface, upper end and plug-in strip moving contacting plate（19）Be hinged, lower end passes through bearing pin and lead angle connecting plate（17）One end is hinged, the other end of lead angle connecting plate（17）It is vertically welded in interlocking manipulation dress bar（6）On.The present invention is simple in construction, and installation, maintenance and replacing arrester are all very convenient, and manipulation is easy, and cost is relatively low, and peaceful performance is good, reduces accident rate, improves operating efficiency.

Description

A mechanical linkage group lightning arrester mechanism and its application method

technical field

The invention relates to a mechanical linkage group lightning arrester mechanism and a method for using the same, and belongs to the technical field of lightning arresters for power supply systems.

Background technique

With the continuous development of society, the power network has covered most areas of our country, providing great convenience for people's production and life. In power transmission and distribution line equipment, the use of lightning arresters is essential, but the current installation technology of lightning arresters on transformer benches has great potential safety hazards. It is only about one meter away from the upper falling crossarm with 10KV voltage, which is far from enough for the safety distance of the staff, and it is very dangerous. In the past, it has happened that the staff held the measuring instrument with the 10KV high voltage wire by mistake. Fortunately, the guarded personnel stopped the incident in which the upper layer fell to the safety catcher; at the same time, the linkage operation of the entire set of arresters could not be realized, and the work efficiency was low. Now there is a need for a method that allows the staff to operate without the need of climbing poles and realize the linkage operation of the entire set of arresters arrester rack.

Utility model content

The object of the present invention is to provide a mechanically linked group lightning arrester mechanism and its use method, which can improve work efficiency and allow staff to operate the lightning arrester frame without the need to climb a pole to realize the linkage operation of the entire group of lightning arresters, thereby ensuring safety and solving the problems of the background technology. of the above problems.

Technical scheme of the present invention is:

A group arrester mechanism with mechanical linkage, including arrester frame, insulator, swivel seat, spring clamping pin shaft, arrester, rectangular through hole, contact seat on the grounding side, contact seat on the lower side of the drop, and movable contact piece of the switch knife and the static contact sheet of the switch knife; the arrester frame is a rectangular frame, including two arrester frame beams and two arrester frame vertical beams, the two arrester frame beams are arranged in parallel, and the two arrester frame vertical beams are symmetrically arranged on the two arrester frames The left and right ends of the beam are provided with a rectangular through hole in the middle; the six insulators are divided into three groups, and are arranged symmetrically and vertically on the two lightning arrester frame beams respectively; The top of each insulator is equipped with a swivel seat; the swivel seat is hinged with one end of the arrester through the spring clamping pin, and the other end of the arrester is connected with the knife movable contact piece; one end of the contact seat on the grounding side passes through The swivel seat is connected to the connecting insulator; the tops of the three insulators on the beam of the lightning arrester frame on the other side of the rectangular frame are all provided with a static contact piece of the switch knife, and one end of the static contact piece of the switch knife is movably connected with the moving contact piece of the switch knife. The other end is fixedly connected with the contact seat on the lower side of the drop;

It also includes interlock control rod, mechanical pull rod, opening pull ring, limit bearing, interlock opening and closing support insulator, closing pull ring and lead angle connecting plate. The two arrester frame vertical beams are close to the grounding side contact Two limit bearings are symmetrically arranged on one side of the seat, and the two ends of the interlock control rod pass through the two limit bearings and are located in the rectangular through hole; the central part of the mechanical pull rod is arranged horizontally and vertically on the interlock One side of the rod is controlled, and the two ends of the mechanical pull rod are respectively equipped with an opening pull ring and a closing pull ring; the interlocking opening and closing support insulators are three, which are arranged directly under the three arresters, and the upper end is movable with the switch blade. The contact piece is hinged, and the lower end is hinged with one end of the lead angle connecting plate through a pin shaft, and the other end of the lead angle connecting plate is vertically welded on the interlocking control rod.

The insulator is a silicon rubber insulator.

The vertical beam of the lightning arrester frame is provided with several mounting screw holes, and the lightning arrester frame is arranged on the cross arm of the lightning arrester through the mounting screw holes.

A method for using a mechanically linked group lightning arrester mechanism, using the mechanism defined above, includes the following steps:

①Firstly, the operator pulls the opening pull ring downward, and the mechanical pull rod tilts to the right, which drives the interlock control rod to turn to the right, and at the same time drives the guide angle connecting plate to move upward, and the guide angle connecting plate drives the interlock to open and close the support insulator Moving upward, opening and closing the upper end of the supporting insulator to lift up the moving contact piece of the moving knife, and the connection between the moving contact piece of the knife on the arrester and the static contact piece of the knife is disconnected, so that the contact between the arrester and the contact seat on the lower side of the drop Disconnect;

②Then the operator uses a high-voltage gram rod to hook the measuring instrument gauge line to the contact seat on the lower side of the drop to perform inspection and measurement of the arrester. After the measurement is completed, the operator uses a high-voltage gram rod to hook the measuring instrument Remove the gauge line;

③Finally, the operator pulls the closing pull ring downward, and the mechanical pull rod tilts to the left, which drives the interlock control rod to rotate to the left, and at the same time drives the guide angle connecting plate to move downward, and the guide angle connecting plate drives the interlock opening and closing support The insulator moves downward, the upper end of the opening and closing support insulator is separated from the moving contact piece of the moving knife, and the moving contact piece of the knife on the arrester is restored to the static contact piece of the knife, so that the arrester is connected to the contact seat on the lower side of the drop.

The contact seat on the grounding side is connected in series with the three phases A, B, and C and then connected to the grounding wire of the transformer; the contact seat on the lower side of the drop is connected to the lower port of the drop insurance.

The beneficial effects of the present invention are: simple structure, very convenient installation, maintenance and replacement of arresters, easy operation, low cost, good safety performance, and can be disconnected and disconnected at the same time through the opening and closing of switches on the ground. Closed, the staff only need to use a high-voltage wand on the ground to hook the measuring instrument gauge line to the upper side of each arrester to check and measure the arrester, so as to avoid the drop of the 10KV voltage and the The electric shock casualty accident caused by the too small safety distance of the arrester shortens the measurement time of the arrester, greatly improves the safety, reduces the accident rate, improves the work efficiency, and has a high safety factor, which provides a great guarantee for the maintenance and replacement of the arrester. convenient.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic view of the left view structure of the present invention;

Fig. 3 is a schematic view of the top view structure of the present invention;

Fig. 4 is a schematic diagram of connection of the lead angle connecting plate of the present invention;

In the figure: lightning arrester frame beam 1, insulator 2, swivel seat 3, spring clamping pin 4, lightning arrester 5, interlocking control rod 6, mechanical pull rod 7, rectangular through hole 8, lightning arrester frame vertical beam 9, opening pull Ring 11, limit bearing 12, interlocking opening and closing support insulator 13, grounding side contact seat 14, closing pull ring 16, lead angle connecting plate 17, contact seat 18 at the lower opening side of the drop, switch blade moving contact piece 19 , switch knife static contact piece 20, mounting screw hole 21.

Detailed ways

Below in conjunction with accompanying drawing, the present invention will be further described.

A group arrester mechanism with mechanical linkage and its use method, comprising arrester frame, insulator 2, swivel seat 3, spring clamping pin 4, arrester 5, rectangular through hole 8, grounding side contact seat 14, drop opening Side contact seat 18, switch knife moving contact piece 19 and switch knife static contact piece 20; the arrester frame is a rectangular frame, including two arrester frame beams 1 and two arrester frame vertical beams 9, two arrester frame beams 1 Arranged in parallel, two lightning arrester frame vertical beams 9 are symmetrically arranged at the left and right ends of the two lightning arrester frame beams 1, and a rectangular through hole 8 is provided in the middle; the insulators 2 are six, divided into three groups, and arranged symmetrically and vertically in pairs On the two lightning arrester frame beams 1; the top of the three insulators 2 on the lightning arrester frame beam 1 on one side of the rectangular frame are provided with a swivel seat 3; One end of the lightning arrester 5 is hinged, and the other end of the lightning arrester 5 is connected to the knife moving contact piece 19; one end of the contact base 14 on the grounding side passes through the swivel seat 3 and is connected to the insulator 2; the lightning arrester frame crossbeam 1 on the other side of the rectangular frame The tops of the three insulators 2 on the top are all provided with a knife static contact piece 20, one end of the knife static contact piece 20 is movably connected with the knife knife moving contact piece 19, and the other end is fixedly connected with the contact seat 18 on the lower side of the drop. ;

It also includes interlocking control rod 6, mechanical pull rod 7, opening pull ring 11, limit bearing 12, interlocking opening and closing support insulator 13, closing pull ring 16 and corner connecting plate 17, the two arrester frames Two limit bearings 12 are symmetrically arranged on the side of the vertical beam 9 close to the contact seat 14 on the grounding side, and the two ends of the interlock control rod 6 pass through the two limit bearings 12 and are located in the rectangular through hole 8; The central part of the mechanical pull rod 7 is horizontally and vertically arranged on one side of the interlock control rod 6, and the two ends of the mechanical pull rod 7 are respectively provided with an opening pull ring 11 and a closing pull ring 16; the interlock opening and closing support insulator 13 is three, arranged directly below the three lightning arresters 5, the upper end is hinged with the switch blade moving contact piece 19, the lower end is hinged with one end of the lead angle connecting plate 17 through a pin shaft, and the other end of the lead angle connecting plate 17 is welded vertically on the joint On the lock control rod 6.

The insulator 2 is a silicon rubber insulator.

The lightning arrester frame vertical beam 9 is provided with several mounting screw holes 21, and the lightning arrester frame is arranged on the lightning arrester cross arm through the mounting screw holes 21.

A method for using a mechanically linked group lightning arrester mechanism, using the mechanism defined above, includes the following steps:

① First, the operator pulls the opening pull ring 11 downward, and the mechanical pull rod 7 tilts to the right, which drives the interlock control rod 6 to rotate to the right, and at the same time drives the guide angle connecting plate 17 to move upward, and the guide angle connecting plate 17 drives the linkage The lock opening and closing support insulator 13 moves upwards, and the upper end of the opening and closing support insulator 13 lifts up the moving contact piece 19 of the moving switch blade, and the connection between the moving contact piece 19 of the switch knife on the arrester 5 and the static contact piece 20 of the switch knife is disconnected. Disconnect the arrester 5 from the contact seat 18 on the lower side of the drop;

②Then the operator uses a high-voltage wand to hook the measuring instrument gauge line to the contact seat 18 on the lower side of the drop to carry out inspection and measurement of the arrester. After the measurement is completed, the operator uses a high-voltage wand to measure Remove the meter wire;

③Finally, the operator pulls the closing pull ring 16 downward, and the mechanical pull rod 7 tilts to the left, which drives the interlock control rod 6 to rotate to the left, and at the same time drives the angle connecting plate 17 to move downward, and the angle connecting plate 17 drives The interlocking opening and closing support insulator 13 moves downward, and the upper end of the opening and closing support insulator 13 is separated from the moving contact piece 19 of the moving switch blade. 5 restore connection with the contact seat 18 on the lower mouth side after falling.

Claims (4)

1. A group arrester mechanism with mechanical linkage, including arrester frame, insulator (2), swivel seat (3), spring clamping pin (4), arrester (5), rectangular through hole (8), grounding side The contact seat (14), the contact seat (18) on the lower side of the drop, the moving contact piece of the switch knife (19) and the static contact piece of the switch knife (20); the arrester frame is a rectangular frame, including two arrester frame beams (1) and two lightning arrester frame vertical beams (9), two lightning arrester frame beams (1) are arranged in parallel, and the two lightning arrester frame vertical beams (9) are symmetrically arranged at the left and right ends of the two lightning arrester frame beams (1), There is a rectangular through hole (8) in the middle; the six insulators (2) are divided into three groups, and they are arranged symmetrically and vertically on the two lightning arrester frame beams (1); the lightning arrester frame beam on one side of the rectangular frame The tops of the three insulators (2) on (1) are all provided with a swivel seat (3); the swivel seat (3) is hinged to one end of the arrester (5) through a spring clamping pin (4), and the arrester ( The other end of 5) is connected to the knife moving contact piece (19); one end of the contact seat (14) on the grounding side passes through the swivel seat (3) and is connected to the insulator (2); the other side of the rectangular frame The tops of the three insulators (2) on the frame beam (1) of the arrester are all provided with a knife static contact piece (20), and one end of the knife static contact piece (20) is flexibly connected with the knife knife moving contact piece (19) , and the other end is fixedly connected with the contact seat (18) on the lower side of the drop, which is characterized in that it includes an interlock control rod (6), a mechanical pull rod (7), a pull ring for opening (11), a limit bearing (12 ), interlocking opening and closing support insulators (13), closing pull rings (16) and lead angle connecting plates (17), the two lightning arrester frame vertical beams (9) are close to the side of the contact seat (14) on the grounding side Two limit bearings (12) are symmetrically arranged on the position of the interlock control rod (6), and the two ends of the interlocking control rod (6) pass through the two limit bearings (12), and are located in the rectangular through hole (8); the mechanical pull rod The central part of (7) is arranged horizontally and vertically on one side of the interlock control rod (6), and the two ends of the mechanical pull rod (7) are respectively provided with an opening pull ring (11) and a closing pull ring (16); There are three interlocking opening and closing support insulators (13), which are arranged directly below the three lightning arresters (5), the upper end is hinged with the knife moving contact piece (19), and the lower end is connected to one end of the guide angle connecting plate (17) through a pin shaft Hinged, the other end (17) of the chamfer connecting plate is vertically welded on the interlock control rod (6). 2. A mechanical linkage group arrester mechanism according to claim 1, characterized in that: the insulator (2) is a silicon rubber insulator. 3. A mechanical linkage group lightning arrester mechanism according to claim 1 or 2, characterized in that: the vertical beam (9) of the lightning arrester frame is provided with several mounting screw holes (21), and the lightning arrester frame is installed by Screw holes (21) are arranged on the cross arm of the arrester. 4. A method for using a grouped lightning arrester mechanism of mechanical linkage, using the mechanism defined in claim 1, characterized in that it comprises the following steps: ① First, the operator pulls the opening pull ring (11) downward, and the mechanical pull rod (7) tilts to the right, driving the interlocking control rod (6) to turn to the right, and at the same time driving the angle connecting plate (17) to move upward , the leading angle connecting plate (17) drives the interlocking opening and closing support insulator (13) to move upwards, and the upper end of the opening and closing support insulator (13) lifts the moving contact piece (19) upwards, and the arrester (5) The connection between the switch knife moving contact piece (19) and the switch knife static contact piece (20) is disconnected, so that the connection between the lightning arrester (5) and the contact seat (18) on the lower side of the drop is disconnected; ②Then the operator uses a high-voltage wand to hook the gauge line of the measuring instrument to the contact seat (18) on the lower side of the drop to carry out the inspection and measurement of the arrester. After the measurement is completed, the operator uses a high-voltage wand to Remove the gauge wire of the measuring instrument; ③Finally, the operator pulls the closing pull ring (16) downward, and the mechanical pull rod (7) tilts to the left, driving the interlocking control rod (6) to rotate to the left, and at the same time driving the corner connecting plate (17) downward Movement, the lead angle connecting plate (17) drives the interlocking opening and closing support insulator (13) to move downward, the upper end of the opening and closing support insulator (13) is separated from the moving contact piece (19) of the moving brake knife, and the contact piece on the arrester (5) The moving contact piece (19) of the switch knife is restored to the connection with the static contact piece (20) of the switch knife, so that the lightning arrester (5) is restored to the contact seat (18) on the lower side of the drop.