CN203134620U - Electrical interlocking mechanism - Google Patents

Electrical interlocking mechanism Download PDF

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Publication number
CN203134620U
CN203134620U CN 201220728120 CN201220728120U CN203134620U CN 203134620 U CN203134620 U CN 203134620U CN 201220728120 CN201220728120 CN 201220728120 CN 201220728120 U CN201220728120 U CN 201220728120U CN 203134620 U CN203134620 U CN 203134620U
Authority
CN
China
Prior art keywords
chute
slide block
sheave
auxiliary switch
arc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220728120
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Chinese (zh)
Inventor
刘晓颖
刘坚钢
吴德祥
何耀明
许文枫
朱金东
戴守祥
符吉祥
孙战捷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NINGBO YOUWEI ELECTRIC POWER TECHNOLOGY Co Ltd
Original Assignee
NINGBO YOUWEI ELECTRIC POWER TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NINGBO YOUWEI ELECTRIC POWER TECHNOLOGY Co Ltd filed Critical NINGBO YOUWEI ELECTRIC POWER TECHNOLOGY Co Ltd
Priority to CN 201220728120 priority Critical patent/CN203134620U/en
Application granted granted Critical
Publication of CN203134620U publication Critical patent/CN203134620U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a solid insulation ring main unit technical field and discloses an electric interlocking mechanism. The electric interlocking mechanism comprises a transmission shaft, a first auxiliary switch, a second auxiliary switch, a grooved wheel, a first sliding block, a second sliding block, a first sliding groove and a second sliding groove; the front and back surfaces of the grooved wheel are both provided with sliding grooves; each sliding groove comprises two segments of arc-shaped sliding grooves with different radiuses, wherein the two segments of arc-shaped sliding grooves are communicated with each other; the radian of one of the two arc-shaped sliding grooves is not smaller than 180 degrees, and the radian of the other arc-shaped sliding groove is smaller than 180 degrees; the first sliding block and the second sliding block are respectively clamped in the first sliding groove and the second sliding groove; the first sliding groove and the second sliding groove are both fixed on a rack; one end of the first sliding block and one end of the second sliding block are respectively clamped inside the sliding grooves of the front and back surfaces of the grooved wheel through shaft pins; and the other end of the first sliding block and the other end of the second sliding block are respectively connected with an operating shaft of the first auxiliary switch and an operating shaft of the second auxiliary switch through connecting rod mechanisms.

Description

A kind of electrical interlock mechanism
Technical field
The utility model relates to solid insulation ring main unit technical field, relates in particular to a kind of electrical interlock mechanism.
Background technology
At present, the solid insulation ring main unit is progressively to miniaturization, compoundization, intelligent direction development, with isolating switch and earthed switch compound be three station isolation-earthed switches, for reduced volume, isolating switch adopts three station vacuum interrupters, and the switch movable contact of three station vacuum interrupters is implemented in the operation of combined floodgate, separating brake, three stations of ground connection in straight-line mode; And and this three stations vacuum interrupter be generally used for combined electric appliance equipment, also need and other switchgears (as breaker mechanism) are realized electrical interlock.
Please referring to Fig. 1, Fig. 1 is a kind of structural representation of typical solid insulation ring main unit.
As shown in Figure 1, this solid insulation ring main unit comprises circuit breaker 20, isolating switch 10, wherein circuit breaker 20 adopts two station vacuum interrupters, isolating switch 10 adopts three station vacuum interrupters, two station vacuum interrupters are operated by two station mechanisms 40, and three station vacuum interrupters are operated by three-station operating mechanism 30.
As Fig. 2, shown in Figure 3, this three-station operating mechanism 30 comprises operating mechanism and three position actuators 6, wherein operating mechanism comprises isolation rotating shaft 1, ground connection rotating shaft 2, first gear mechanism 4, power transmission shaft 3, second gear mechanism 5, described isolation rotating shaft 1 one ends, one end of ground connection rotating shaft 2 forms the isolated operation end respectively, the ground connection operating side, the other end of described isolation rotating shaft 1, the other end of ground connection rotating shaft 2, one end of power transmission shaft 3 carries out transmission by described first gear drive, the other end of described power transmission shaft 3 is connected with driving gear 51 centers of described second gear drive, and driven gear 52 centers of described second gear drive are connected with three position actuators 6 by connecting axle 60.
As Fig. 4, shown in Figure 5, described three position actuators 6 comprise cam 61, connecting rod 62, and the two end supports of described connecting axle is on frame; Described cam 61 is provided with the cam chute, and described cam chute comprises the first segmental arc chute with different arc radius, the second segmental arc chute, the 3rd segmental arc chute that is communicated with successively; The upper end of described connecting rod 62 is provided with pivot pin 64, and described bearing pin 64 is movably connected in the described cam chute, and the lower end of described connecting rod 62 is provided with a plurality of isolating switch moving contact connecting portions for the insulated tension pole that connects a plurality of isolating switches.
In the time of will isolating rotating shaft 1 and rotate counterclockwise 180 °, by 120 ° of first gear mechanisms 4, power transmission shaft 3,61 rotations of second gear mechanism, 5 driving cams, the pivot pin on the connecting rod 62 will move upward from low side in chute, realize the close a floodgate conversion of separating brake of isolating switch; Clockwise rotate ground connection rotating shaft 2 Rotate 180s °, by 120 ° of first gear mechanisms 4, power transmission shaft 3,61 rotations of second gear mechanism, 5 driving cams, connecting rod 62 moves upward again, realizes that the isolating switch separating brake is to the conversion of ground connection.
For flexibility and the fail safe that guarantees to move, also need three-station operating mechanism 30 is carried out electrical interlock.
Therefore, how to realize the electrical interlock to the three-station operating mechanism, become the technical barrier that those skilled in the art need to be resolved hurrily.
The utility model content
The purpose of this utility model provides a kind of electrical interlock mechanism, to realize the electrical interlock to the three-station operating mechanism.
To achieve these goals, the utility model provides a kind of electrical interlock mechanism, be used for the three-station operating mechanism is carried out electrical interlock, comprise power transmission shaft, first auxiliary switch, second auxiliary switch, sheave, first slide block, second slide block, first chute, second chute; Front, the reverse side of described sheave are equipped with chute, and described chute includes two sections arc chutes that radius is different of connection, and the radian of an arc chute is not less than 180 ° in two sections arc chutes, and the radian of another arc chute is less than 180 °; First slide block, second slide block are stuck in respectively in described first chute, described second chute, described first chute, described second chute all are fixed on the frame, one end of described first slide block, an end of described second slide block are stuck in the chute of front, reverse side of described sheave by pivot pin respectively, and the other end of the described first slide block other end, described second slide block all is connected with the operating axis of described first auxiliary switch, the operating axis of second auxiliary switch respectively by linkage; The pivot of described power transmission shaft and described sheave is fixed.
Preferably, described power transmission shaft is the isolation rotating shaft of three-station operating mechanism.
Preferably, the operating axis of described first auxiliary switch is connected with the pivot of second direction board of mechanical interlock mechanism, and the operating axis of described second auxiliary switch is connected with the pivot of first direction board of mechanical interlock mechanism.
Preferably, described linkage comprises pull bar, connecting lever.
The electrical interlock mechanism that the utility model provides comprises power transmission shaft, first auxiliary switch, second auxiliary switch, sheave, first slide block, second slide block, first chute, second chute, and power transmission shaft is specially the isolation rotating shaft of three-station operating mechanism; Front, the reverse side of described sheave are equipped with chute, and described chute includes two sections arc chutes that radius is different of connection, and the radian of an arc chute is not less than 180 ° in two sections arc chutes, and the radian of another arc chute is less than 180 °; First slide block, second slide block are stuck in respectively in described first chute, described second chute, described first chute, described second chute all are fixed on the frame, one end of described first slide block, an end of described second slide block are stuck in the chute of front, reverse side of described sheave by pivot pin respectively, and the other end of the described first slide block other end, described second slide block all is connected with the operating axis of described first auxiliary switch, the operating axis of second auxiliary switch respectively by linkage; The pivot of described power transmission shaft and described sheave is fixed.
During original position, the pivot pin on first slide block is arranged in the less end end of sheave front chute circular arc radian, and the pivot pin on second slide block is arranged in the bigger end end of sheave reverse side chute circular arc radian.
In the time of isolating switch need being changed to separating brake from combined floodgate, rotate counterclockwise and isolate rotating shaft Rotate 180 °, drive sheave and be rotated counterclockwise 180 ° synchronously, because the pivot pin on first slide block is arranged in the less end end of sheave front chute circular arc radian, sheave will promote the pivot pin side shifting outside sheave on first slide block in the chute of the sheave back side, thereby the slide block of winning is slided along first chute, first slide block drives the second auxiliary switch operating axis by linkage and rotates, finish the conversion of second auxiliary switch, simultaneously, because the pivot pin on second slide block is arranged in the bigger end end of sheave reverse side chute circular arc radian, it is mobile that the rotation of sheave can not make second slide block produce, and first auxiliary switch can transition status.
In the time of isolating switch need being changed from the separating brake to ground connection, clockwise rotate ground connection rotating shaft Rotate 180 °, the ground connection rotating shaft drives the isolation rotating shaft by gear mechanism and sheave is rotated counterclockwise 180 °, promote the pivot pin side shifting outside sheave on second slide block in the sheave reverse side chute, thereby make second slide block slide along second chute, and then rotate by the operating axis that linkage drives first auxiliary switch, finish the conversion of first auxiliary switch, simultaneously, pivot pin on first slide block is in the bigger chute of sheave front circular arc radian, it is mobile that the rotation of sheave can not make first slide block produce, and second auxiliary switch can transition status.
The utility model by the rotation of sheave drive first slide block, second sequential slider moves, and then the sequence of states that realizes first auxiliary switch, second auxiliary switch is changed, thereby realize the pneumatic interlocking of three-station operating mechanism, guarantee flexibility and the fail safe of operation.
Description of drawings
Fig. 1 is a kind of structural representation of typical solid insulation ring main unit;
Fig. 2 is the structural representation of three-station operating mechanism among Fig. 1;
Fig. 3 is the structural representation of operating means among Fig. 2;
Fig. 4 is the side-looking structural representation of three position actuators among Fig. 2;
Fig. 5 is the plan structure schematic diagram of three position actuators among Fig. 2;
Fig. 6 is the main TV structure schematic diagram of electrical interlock provided by the utility model mechanism;
Fig. 7 is the plan structure schematic diagram of Fig. 6;
Fig. 8 is the structural representation of Geneva mechanism;
Fig. 9 is the side-looking structural representation of Fig. 8;
Figure 10 is the structural representation in sheave front among Fig. 8;
Figure 11 is the structural representation of sheave reverse side among Fig. 8;
Figure 12 is the structural representation of mechanical interlock mechanism;
Wherein, among Fig. 1-Figure 12:
Isolating switch 10, circuit breaker 20, three-station operating mechanism 30, two station mechanisms 40; Isolate rotating shaft 1, ground connection rotating shaft 2, power transmission shaft 3, first gear mechanism 4, second gear mechanism 5, driving gear 51, driven gear 52, three position actuators 6, connecting axle 60, cam 61, connecting rod 62;
Frame 100, first auxiliary switch 101, second auxiliary switch 102, sheave 103, first slide block 104, second slide block 105, pivot pin 106, pivot pin 107, first chute 108, second chute 109, connecting lever 110, connecting rod 111;
First direction board 202, first grade the pin 221, second direction board 203, second grade the pin 231, baffle plate 204.
Embodiment
In order to make those skilled in the art better understand the technical solution of the utility model, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
It please is the main TV structure schematic diagram of electrical interlock provided by the utility model mechanism referring to Fig. 6-Fig. 9, Fig. 6; Fig. 7 is the plan structure schematic diagram of Fig. 6; When Fig. 8 is in "on" position for isolating switch, the structural representation of Geneva mechanism; Fig. 9 is the side-looking structural representation of Fig. 8.
As Fig. 6-shown in Figure 9, the electrical interlock mechanism that the utility model provides, be used for the three-station operating mechanism is carried out electrical interlock, comprise power transmission shaft, first auxiliary switch 101, second auxiliary switch 102, Geneva mechanism, described Geneva mechanism comprises sheave 103, first slide block, second slide block, first chute 108, first chute 109, power transmission shaft is specially the isolation rotating shaft 1 of three-station operating mechanism, on frame 100, the pivot of described power transmission shaft and described sheave 103 is fixed by bearings in isolation rotating shaft 1.
Front, the reverse side of described sheave 103 are equipped with chute, described chute includes two sections arc chutes that radius is different of connection, and the radian of an arc chute is not less than 180 ° in two sections arc chutes, the radian of another arc chute is less than 180 °, in the concrete scheme, the radian of an arc chute is 180 degree, and the radian of another arc chute is communicated with by excessive section between the two less than 180 °; Described first chute 108 is fixed on the frame 100, and first chute 109 is on frame 100; One end of described first slide block 104 is stuck in the chute in sheave 103 fronts by pivot pin 106, pivot pin 106 can slide in the chute in front, first slide block 104 is stuck in first chute 108, the other end of first slide block 104 is connected by the operating axis of linkage with second auxiliary switch 102, in the concrete scheme, this linkage comprises connecting lever 110, connecting rod 111, one end of connecting rod 111 is connected with the other end of first slide block 104, the other end of connecting rod 111 is connected with an end of connecting lever 110, and the other end of connecting lever 110 is connected with the operating axis of second auxiliary switch 101.
One end of described second slide block 105 is stuck in by pivot pin 107 in the chute of reverse side of described sheave 103, and pivot pin 107 can slide in the chute of reverse side, and second slide block 105 is stuck in first chute 109; The other end of second slide block 105 is connected by the operating axis of linkage with first auxiliary switch 101, in the concrete scheme, this linkage comprises connecting lever 110, connecting rod 111, one end of connecting rod 111 is connected with the other end of second slide block 105, the other end of connecting rod 111 is connected with an end of connecting lever 110, and the other end of connecting lever 110 is connected with the operating axis of second auxiliary switch 101.
Be introduced below in conjunction with the operation principle of accompanying drawing to Geneva mechanism.
Please refer to Figure 10, Figure 11, during original position, pivot pin 106 is arranged in the A point of sheave 103 front chutes, and pivot pin 107 is arranged in the E point of sheave 103 reverse side chutes; When isolation rotating shaft 1 drive sheave 103 is rotated counterclockwise 180 °, pivot pin 106 from the A point of sheave 103 front chutes to the C point, because in same circular arc, not motion of pivot pin 107, second slide block 105 is not mobile, and pivot pin 106 from the A point of sheave 103 front chutes by changeover portion to the C point, first slide block 104 moves along first chute 108; After isolating rotating shaft 1 and driving sheave 103 and continue to change 180 °, to the B point, first slide block 104 is mobile from the C point of sheave 103 front chutes for pivot pin 106, and pivot pin 107 from the F point through changeover portion to the D point, second slide block 105 moves along first chute 109.Be that sheave 103 turns in 360 ° the process, first slide block 104 earlier after mobile the finishing again second slide block 105 move, realize sequentially-operating.
In order to introduce the operation principle of the electrical interlock mechanism that the utility model provides more intuitively, we are in conjunction with the structure of three-station operating mechanism.
During original position, the pivot pin 106 on first slide block 104 is arranged in the less end end of sheave 103 front chute circular arc radians, and the pivot pin 107 on second slide block 105 is arranged in the bigger end end of sheave 103 reverse side chute circular arc radians.
In the time of isolating switch need being changed to separating brake from combined floodgate, rotate counterclockwise and isolate rotating shaft 1 Rotate 180 °, drive sheave 103 and be rotated counterclockwise 180 ° synchronously, because the pivot pin 106 on first slide block 104 is arranged in the less end end of sheave 103 front chute circular arc radians, sheave 103 will promote pivot pin 106 side shifting outside sheave 103 in the sheave 103 front chutes, thereby the slide block 104 of winning is slided along first chute 108, first slide block 104 drives second auxiliary switch, 102 operating axis by linkage and rotates, finish the conversion of second auxiliary switch 102, simultaneously, because the pivot pin 107 on second slide block 105 is arranged in the bigger end end of sheave 103 reverse side chute circular arc radians, it is mobile that the rotation of sheave 103 can not make second slide block 105 produce, and first auxiliary switch 101 can transition status.
In the time of isolating switch need being changed from the separating brake to ground connection, clockwise rotate ground connection rotating shaft 2 Rotate 180s °, ground connection rotating shaft 2 drives isolation rotating shaft 1 by gear mechanism and sheave 103 is rotated counterclockwise 180 °, promote pivot pin 107 side shifting outside sheave on second slide block 105 in the sheave 103 reverse side chutes, thereby make second slide block 105 slide along first chute 109, and then rotate by the operating axis that linkage drives first auxiliary switch 101, finish the conversion of first auxiliary switch 101, simultaneously, pivot pin 106 on first slide block 104 is in the bigger chute of sheave 103 front circular arc radians, it is mobile that the rotation of sheave 103 can not make first slide block 105 produce, and second auxiliary switch can transition status.
The utility model drives first slide block 104, the 105 order movements of second slide block by the rotation of sheave 103, and then the sequence of states that realizes first auxiliary switch 101, second auxiliary switch 102 is changed, thereby realize the pneumatic interlocking of three-station operating mechanism, guarantee flexibility and the fail safe of operation.
In the preferred scheme, the operating axis of described first auxiliary switch 101 is connected with the pivot of second direction board of mechanical interlock mechanism, and the operating axis of described second auxiliary switch 102 is connected with the pivot of first direction board of mechanical interlock mechanism.
Please refer to Figure 12, described mechanical interlock mechanism comprises baffle plate 204, first direction board 202, second direction board 203, first direction board 202, the pivot of second direction board 203 respectively with the operating axis of second auxiliary switch 102, the operating axis of first auxiliary switch 101 connects, described baffle plate 204 rotatable being arranged on the described support, described baffle plate 204 is positioned at described isolated operation end, the outside of described ground connection operating side, this baffle plate 204 is used for optionally blocking described isolated operation hole or described ground connection handle hole, described first direction board 202, the inboard of described second direction board 203 is respectively equipped with can be against first grade of pin 221 of described baffle plate 204 outers, second grade of pin 231, by rotating described first direction board 202, described second direction board 203, also namely by adjusting first grade of pin 221, the position of second grade of pin 231, described baffle plate 204 can be in and only block described isolated operation hole, only block described ground connection handle hole, block described isolated operation hole simultaneously, three positions of described ground connection handle hole.
When isolating switch is in "on" position, first grade of pin 221 of first direction board, 202 inboards is positioned at baffle plate 204 upper left sides and keeping off baffle plate 204, fail against the position of baffle plate 204 second grade of pin 231 lower left that are in baffle plate 204 of second direction board, 203 inboards, and this moment, baffle plate 204 can only be rotated counterclockwise; With baffle plate 204 Rotate 180s °, baffle plate 204 is in the position of only blocking described ground connection handle hole counterclockwise, has namely opened the isolated operation hole in left side, can be to isolating rotating shaft 1 operation; Isolate counterclockwise rotating shaft Rotate 180 °, namely isolating switch is in gate-dividing state, and second auxiliary switch, 102 operating axis rotate, and drive first direction board 202 and are rotated counterclockwise, and move on first grade of pin 221, removes spacing to baffle plate 204; Promote baffle plate 204 rotations clockwise, because the spacing releasing of first grade of pin 221, baffle plate 204 is in the position of only blocking described isolated operation hole, has namely opened the ground connection handle hole of the ground connection rotating shaft 2 on right side; Ground connection rotating shaft 2 turns clockwise 180 °, and namely isolating switch is in ground state, and first auxiliary switch, 101 operating axis rotate, and drives second direction board 203 and is rotated counterclockwise, and sells the position, lateral confinement position, lower-left that moves to baffle plate 204 on 231 for second grade; Be rotated counterclockwise baffle plate 204, baffle plate 204 is in the position of blocking described isolated operation hole and described ground connection handle hole simultaneously, because second grade of pin 231 is spacing, baffle plate 204 can not continue rotation, namely guarantee to operate under the ground state and isolate rotating shaft 1, realize the operation interlocking of three station manipulation mechanisms.
The above only is the description of the preferred implementation of utility model; should be understood that; because the finiteness of literal expression; and objectively have unlimited concrete structure; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.

Claims (4)

1. an electrical interlock mechanism is used for the three-station operating mechanism is carried out electrical interlock, it is characterized in that, comprises power transmission shaft, first auxiliary switch, second auxiliary switch, sheave, first slide block, second slide block, first chute, second chute; Front, the reverse side of described sheave are equipped with chute, and described chute includes two sections arc chutes that radius is different of connection, and the radian of an arc chute is not less than 180 ° in two sections arc chutes, and the radian of another arc chute is less than 180 °; First slide block, second slide block are stuck in respectively in described first chute, described second chute, described first chute, described second chute all are fixed on the frame, one end of described first slide block, an end of described second slide block are stuck in the chute of front, reverse side of described sheave by pivot pin respectively, and the other end of the described first slide block other end, described second slide block all is connected with the operating axis of described first auxiliary switch, the operating axis of second auxiliary switch respectively by linkage; The pivot of described power transmission shaft and described sheave is fixed.
2. electrical interlock according to claim 1 mechanism is characterized in that described power transmission shaft is the isolation rotating shaft of three-station operating mechanism.
3. electrical interlock according to claim 1 mechanism, it is characterized in that, the operating axis of described first auxiliary switch is connected with the pivot of second direction board of mechanical interlock mechanism, and the operating axis of described second auxiliary switch is connected with the pivot of first direction board of mechanical interlock mechanism.
4. electrical interlock according to claim 1 mechanism is characterized in that described linkage comprises pull bar, connecting lever.
CN 201220728120 2012-12-24 2012-12-24 Electrical interlocking mechanism Expired - Fee Related CN203134620U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220728120 CN203134620U (en) 2012-12-24 2012-12-24 Electrical interlocking mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220728120 CN203134620U (en) 2012-12-24 2012-12-24 Electrical interlocking mechanism

Publications (1)

Publication Number Publication Date
CN203134620U true CN203134620U (en) 2013-08-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220728120 Expired - Fee Related CN203134620U (en) 2012-12-24 2012-12-24 Electrical interlocking mechanism

Country Status (1)

Country Link
CN (1) CN203134620U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103177889A (en) * 2012-12-24 2013-06-26 刘晓颖 Electrical interlocking mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103177889A (en) * 2012-12-24 2013-06-26 刘晓颖 Electrical interlocking mechanism
CN103177889B (en) * 2012-12-24 2016-08-03 宁波优维电力科技有限公司 A kind of electrical interlocking mechanism

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130814

Termination date: 20141224

EXPY Termination of patent right or utility model