CN2814657Y

CN2814657Y - Outdoor vacuum breaker driving and linking device

Info

Publication number: CN2814657Y
Application number: CN 200520101415
Authority: CN
Inventors: 胡光福; 彭伟阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-02
Filing date: 2005-04-02
Publication date: 2006-09-06
Anticipated expiration: 2015-04-02

Abstract

The utility model relates to a transmission and interlocking device for an outdoor vacuum circuit breaker, which belongs to the technical field of a matching device for electric network power supply, and is designed to aim at an existing circuit breaker which has the phenomena of high closing work, failure to open and failure to close, and the inferiority of the existing circuit breaker, an isolating switch and an interlocking structure. The utility model has the essential design that a transmission component is of transmission connection of crank sliding block type, namely, a driving pull rod is connected with a CTB mechanism, the crank arm of a connecting rod component, and a connecting rod; an interlocking component has the connection mode that in the closing state of the circuit breaker, the isolating switch can not close; in the closing state of the circuit breaker and the opening state of the isolating switch, crank arm rises, and causes a square shaft to rotate upward to a horizontal state, a limiting screw on the crank arm is butted on a limiting crank arm on the welding shaft of an isolating knife, which causes the large welding shaft of the isolating knife to be incapable of rotating towards a closing position and keeps an isolating blade in an opening state. The two modes can not cause the unsafe incipient fault of the electric network power supply, reduces transmission links, enhances transmission efficiency, reduces the closing work and solves the problems of failure to open and failure to close of the previous current breaker.

Description

Outdoor Vacuum Circuit Breaker Transmission Interlock Device

Technical field

The utility model relates to mains supply corollary apparatus field, is a kind of novel outdoor vacuum circuit breaker crank block type transmission mechanism and isolating switch interlock.

Background technology

At present, Yun Hang breaker closing merit is higher out of doors, and the phenomenon of refuse branch, refusing to close happens occasionally, and circuit breaker and isolating switch interlocking owe reliable.These phenomenons easily cause the disintegration of switch interlocking, and bring unsafe factor, the above-mentioned technical problem so the administrative department of the manufacturer of outdoor vacuum circuit breaker and electrical network needs to be resolved hurrily for the dispensing electricity of electrical network.

Summary of the invention

The purpose of this utility model is to provide a kind of Outdoor Vacuum Circuit Breaker Transmission Interlock Device to this area, owes the reliable technique problem to solve existing circuit breaker and isolating switch interlocking.The purpose of this utility model realizes by the following technical solutions.A kind of Outdoor Vacuum Circuit Breaker Transmission Interlock Device, this device is made up of transmission and interlocking two parts, it is characterized in that:

The connected mode of drive disk assembly under circuit breaker 10 gate-dividing states belongs to crank block type and is in transmission connection, i.e. the connecting lever 48 of drive stay 34 and CTB mechanism 33, link assembly 30, and connecting rod 45 is connected; Under the driving of CTB mechanism 33, the connecting lever 48 of drivening rod assembly 30 rotates to closing position, moves upward along kidney slot with this drive link 45.The connected mode of the indoor dynamic and static contact closure of vacuum interrupter: drag link sleeve 29 and stage clip 28, insulating bar 26, be flexible coupling 24, conductive clip 23 is connected; Be drive stay cover 29, stage clip 28, insulating bar 26, be flexible coupling 24, conductive clip 23 makes progress together, finishes the closure of the indoor dynamic and static contact of vacuum interrupter, implements closing operation.Connected mode under the "on" position: the separating brake by CTB mechanism 33 under the "on" position " is triped ", under the effect of tripping spring 36 and stage clip 28, drive stay 34 drives drag link sleeve 29, stage clip 28, insulating bar 26 by (separating brake direction) in the other direction, be flexible coupling 24, conductive clip 23 moves downward, the indoor dynamic and static contact of vacuum extinction separates, and implements sub-switching operation.CTB mechanism 33, tripping spring 36 and stage clip 28, drive stay 34, drag link sleeve 29, stage clip 28, insulating bar 26, be flexible coupling 24, conductive clip 23 is connected.

The connected mode of interlocking elements:

The connected mode of the breaker closing in the interlocking elements, isolating switch gate-dividing state: breaker closing state and isolating switch are under the gate-dividing state, and isolating switch can not close a floodgate.Connecting lever 16 drives connecting lever 18 and is raised up to Fig. 4 double dot dash line position, and promptly the DH position belongs to the breaker closing state.Make square shaft 13 rotate to Fig. 5 double dot dash line position, the stop screw on the connecting lever 12 withstands an end of the interlocking connecting lever of isolation knife welding macro-axis 1 simultaneously.

Breaker closing in the interlocking elements, isolating switch are in the connected mode of "on" position: breaker closing state and isolating switch are under the "on" position, and isolating switch can not separating brake.Connecting lever 16 drives connecting lever 18 and is raised up to Fig. 4 double dot dash line position, makes square shaft 13 rotate to Fig. 5 double dot dash line position; Stop screw on the connecting lever 12 withstands the other end of the spacing connecting lever of isolation knife welding macro-axis 1 simultaneously.

Work as breaker open operation, it is under the gate-dividing state, connecting lever 16 falls, and resets by torsion spring 17, and connecting lever 12 also resets this moment, and it is inoperative to isolate blade 5 interlockings, isolating switch this moment with freely close, separating brake.

Be in transmission connection and be connected dual mode with interlocking by the above-mentioned crank block type that is provided with, the operating personnel of power supply department also can not cause the hidden danger of mains supply as producing misoperation.Because, because the position-limiting action of interlock, can not the actuating isolating switch and damage interlocking elements, make the power supply department operation safer, reliable.This device adopts crank block transmission, and transmission link is reduced, and improves transmission efficiency, and the combined floodgate merit is reduced, and former circuit breaker refuses branch, refuse to close phenomenon is solved.

Description of drawings

Fig. 1 is the main schematic diagram of looking of the utility model general assembly.

Fig. 2 is that schematic diagram is looked on the right side of Fig. 1, and the H among the figure is a "on" position, and F is a gate-dividing state.

Fig. 3 is the interlock schematic diagram of circuit breaker and isolation knife, and the D among the figure is a circuit breaker, and h is welding macro-axis interlocking connecting lever.

Fig. 4 is the B-B cutaway view of Fig. 3, and the DH of the dotted line of this figure is the breaker closing state; Solid line DF is the breaker open operation state.

Fig. 5 is the C-C cutaway view of Fig. 3, and the dotted line DH of this figure is the breaker closing state; Solid line DF is the breaker open operation state.

Fig. 6 is Fig. 2 schematic top plan view and partial sectional view, and the GJ among the figure is a silica gel, and H is a "on" position, and F is a gate-dividing state.

Fig. 7 is the elevational schematic view of Fig. 2.

Fig. 8 is a circuit breaker transmission device schematic diagram, and the H among the figure is a "on" position, and F is a gate-dividing state.

Fig. 9 is Fig. 8 E-E cross-sectional schematic;

Figure 10 is the F-F cutaway view of Fig. 8;

Figure 11 is the G-G cutaway view of Fig. 8.

The sequence number of above accompanying drawing and title: 1, isolation knife welding macro-axis, 2, isolation knife on/off switch handle, 3, insulating frame, 4, insulator, 5, isolate blade, 6, insulated tension pole, 7, acceleration spring, 8, interlock, 9, current transformer, 10, circuit breaker, 11, following outlet, 12, connecting lever, 13, square shaft, 14, bearing pedestal, 15, support, 16, connecting lever, 17, torsion spring, 18, connecting lever, 19, gag lever post, 20, last outlet, 21, last insulating cylinder, 22, vacuum interrupter, 23, conductive clip, 24, be flexible coupling, 25, flange seat, 26, insulating bar, 27, following insulator, 28, stage clip, 29, drag link sleeve, 30, link assembly, 31, suspension ring, 32, circuit breaker frame, 33, CTB mechanism, 34, drive stay, 35, auxiliary switch, 36, tripping spring, 37, draw ring, 38, circuit breaker closes the branch handle, 39, circuit breaker divides sympodium, 40, the energy storage axle, 41, the energy storage handle, 42, close branch indication axle, 43, pivot pin, 44, roller, 45, connecting rod, 46, bearing pin, 47, bearing pin, 48, connecting lever, 49, bearing pin, 50, guide pillar.

Embodiment

Interlock: execution mode is under the breaker closing state, and it is example that isolating switch can not be implemented to close a floodgate.Under breaker closing and isolating switch separating brake and "on" position, because of being driven connecting lever 18, connecting lever 16 is raised up to Fig. 4 double dot dash line position, square shaft 13 is rotated up to Fig. 5 double dot dash line position, stop screw on the connecting lever 12 withstands the interlocking connecting lever on the isolation knife welding macro-axis 1, isolation knife welding macro-axis 1 can't be rotated to closing position and separating brake position, and isolation blade 5 remains on gate-dividing state and circuit breaker is in "on" position.

The crank block type transmission: link assembly 30 is as component-assembled, and as shown in Figure 8, wherein the rotation drivening rod 45 of connecting lever 48 and drag link sleeve 29 move up to "on" position; Otherwise the separating brake motion then.

Claims

1, a kind of Outdoor Vacuum Circuit Breaker Transmission Interlock Device, this device is made up of transmission and interlocking two parts, it is characterized in that:

A), the connected mode of drive disk assembly under circuit breaker (10) gate-dividing state belong to crank block type and be in transmission connection, i.e. the connecting lever (48) of drive stay (34) and CTB mechanism (33), link assembly (30), connecting rod (45) is connected; The connected mode of the indoor dynamic and static contact closure of vacuum interrupter: drag link sleeve (29) is connected with stage clip (28), insulating bar (26), be flexible coupling (24), conductive clip (23); Connected mode under the "on" position: CTB mechanism (33) separating brake, tripping spring (36) is connected with stage clip (28), drive stay (34), drag link sleeve (29), stage clip (28), insulating bar (26), be flexible coupling (24), conductive clip (23);

B), the connected mode of interlocking elements:

1. the connected mode of the breaker closing in the interlocking elements, isolating switch gate-dividing state: under breaker closing and the isolating switch gate-dividing state, connecting lever (16) drives connecting lever (18) and is raised up to breaker closing, make square shaft (13) rotation, the stop screw on the connecting lever (12) withstands an end of the interlocking connecting lever of isolation knife welding macro-axis (1);

2. the connected mode of the breaker closing in the interlocking elements, isolating switch "on" position: under breaker closing and the isolating switch "on" position, connecting lever (16) drives connecting lever (18) and lifts, make square shaft (13) rotation, the stop screw on the connecting lever (12) withstands the other end of the spacing connecting lever of isolation knife welding macro-axis (1);

3. under the breaker open operation state, connecting lever (16) falls, and torsion spring (17), connecting lever (12) reset.