CN201084661Y

CN201084661Y - A switching clip-connection keeping structure of high-pressure breaker

Info

Publication number: CN201084661Y
Application number: CNU200720091292XU
Authority: CN
Inventors: 劳忠伟; 羿庆海; 张哲�
Original assignee: XUCHANG YONGXIN ELECTRICAL EQUIPMENT CO Ltd
Current assignee: Xuchang Yongxin Electric Co., Ltd.
Priority date: 2007-07-31
Filing date: 2007-07-31
Publication date: 2008-07-09
Anticipated expiration: 2017-07-31

Abstract

The utility model discloses a switch-on clasping and retaining structure for high-voltage circuit-breaker, comprising a switch-off regulating crank (2) and a switch-off regulating crank shaft (1) arranged on the switch-off regulating crank (2), a roller (3) and a switch-off trigger (4); a trigger rotating shaft (6) is also arranged on the switch-off regulating crank (2), the switch-off trigger (4) and the switch-off regulating crank (2) are two separate components, the switch-off trigger (4) goes through the trigger rotating shaft (6) and is movably connected on the switch-off regulating crank (2), a reset spring (5) is arranged between the switch-off trigger (4) and the switch-off regulating crank (2). The utility model has the advantages that the principles of two-stage buckling and one-time restoration are applied on the high-pressure voltage circuit-breaker; the design purpose of reducing the reducing the time of restoration retaining operation of the buckling members is achieved via the design and combination of the switch-off trigger (4), the reset spring (5) and the trigger rotating shaft (6); the tested results in circuit breaker sample testing and the mass production are proved to be excellent, basically putting an end to the failure of buckling invalidation.

Description

Primary cut-out combined floodgate snapping keeps structure

Technical field

The utility model belongs to electric power system primary cut-out equipment, and particularly primary cut-out combined floodgate snapping keeps structure.

Background technology

Primary cut-out is the switchgear in the high-tension line.It closes by operating member driving high-voltage contact and closes, the disjunction action.The main axis rotation of member drives high-voltage contact and is operated in combined floodgate and two positions of separating brake, keeps the stable main shaft that keeps of structural bearing separating brake strength at closing position at closing position by snapping.

Old snapping keeps in the structure as depicted in figs. 1 and 2, separating brake connecting lever 2 is integral member, in feed motion, after needing separating brake connecting lever 2 to be rotated counterclockwise to reset, guide's pallet 9 another mistake hour hands spinning reductions like this before and after continuous two actions finish realization the snapping of roller 10 fixing on the main shaft 11 kept; And turn clockwise time of rollback of main shaft 11 is very short, is easy to generate the situation that two homing actions fail to finish, and makes snapping failure, purpose of breaker failure.

Summary of the invention

The purpose of this utility model provides a kind of improved primary cut-out combined floodgate snapping and keeps structure, the utility model is used two-stage snapping, the principle that resets once on primary cut-out, reach and reduce buckle pieces and reset and keep the purpose of operate time, and the generation of having stopped this snapping failure of removal situation.

For addressing the above problem, the utility model has adopted following technical scheme: primary cut-out combined floodgate snapping keeps structure, by separating brake connecting lever (2) and be located at separating brake connecting lever rotating shaft (1) on the separating brake connecting lever (2), roller (3) and separating brake pallet (4) and constitute, on separating brake connecting lever (2), also be provided with pallet rotating shaft (6), separating brake pallet (4) is two separated components with separating brake connecting lever (2), separating brake pallet (4) passes pallet rotating shaft (6) and is movably connected on the separating brake connecting lever (2), establishes back-moving spring (5) between separating brake pallet (4) and separating brake connecting lever (2).

Above-mentioned primary cut-out combined floodgate snapping keeps structure, preferred construction is that back-moving spring (5) is reduction torsion spring (5.1), reduction torsion spring (5.1) is socketed in the pallet rotating shaft (6), one end of reduction torsion spring (5.1) is stuck on the separating brake pallet (4), and the other end is stuck in above the separating brake connecting lever rotating shaft (1).

Above-mentioned primary cut-out combined floodgate snapping keeps structure, and another kind structure preferably is that back-moving spring (5) is reset tension spring (5.2), and an end of reset tension spring (5.2) is fixed on the separating brake pallet (4), and the other end is fixed on the separating brake connecting lever.

The beneficial effects of the utility model: is to increase shaft hole on separating brake connecting lever 2 as Fig. 3 or Fig. 4 in conjunction with the utility model shown in Figure 5, has designed separating brake pallet 4, reduction torsion spring 5 and 6 three vital parts of pallet rotating shaft.Primary cut-out combined floodgate snapping keeps structure in the feed motion process as shown in Figure 5, only there are 4 one parts of separating brake pallet under the twisting force of reduction torsion spring 5, to do homing action around pallet rotating shaft 6, and guide's pallet 9 does not participate in moving, the integral reset snapping time is significantly reduced, and the wearing and tearing of separating brake pallet 9 with roller 3, the useful life of having improved primary cut-out have been reduced.The utility model is used two-stage snapping, the principle that resets once on primary cut-out, by the composite design of separating brake pallet 4, reduction torsion spring 5 and pallet rotating shaft 6, reach and reduce buckle pieces and reset and keep the purpose of design of operate time; Verification the verifying results is good in circuit breaker prototyping testing and batch process, the generation of having stopped this snapping failure of removal situation basically; And the wearing and tearing of separating brake pallet 9 have been reduced, the useful life of having improved primary cut-out with roller 3.

Description of drawings

Fig. 1 is that former primary cut-out combined floodgate snapping keeps the architecture schematic diagram

Fig. 2 is that former primary cut-out combined floodgate snapping keeps structure user mode figure

Fig. 3 is the utility model structural representation

Fig. 4 is the another kind of structural representation of the utility model

Fig. 5 is the utility model user mode figure

Wherein: 1 separating brake connecting lever rotating shaft, 2 separating brake connecting levers, 3 rollers, 4 separating brake pallets, 5.1 reduction torsion springs, 5.2 reset tension springs, 6 pallet rotating shafts, 7 fixed supports, 8 separating brake baffle plates, 9 guide's pallets, 10 rollers, 11 circuit breaker main shafts, 12 main shaft connecting levers

Embodiment

Primary cut-out combined floodgate snapping keeps structure, keep structure by primary cut-out combined floodgate snapping as shown in Figure 3, constitute by separating brake connecting lever 2 and the separating brake connecting lever rotating shaft 1, roller 3 and the separating brake pallet 4 that are located on the separating brake connecting lever 2, on separating brake connecting lever 2, also be provided with pallet rotating shaft 6, separating brake pallet 4 is two separated components with separating brake connecting lever 2, separating brake pallet 4 passes pallet rotating shaft 6 and is movably connected on the separating

brake connecting lever

2, and 2 of separating brake pallet 4 and separating brake connecting levers are established back-moving spring 5.

Above-mentioned primary cut-out combined floodgate snapping keeps structure, preferred construction shown in Figure 3 is that back-moving spring 5 is reduction torsion springs 5.1, reduction torsion spring 5.1 is socketed in the pallet rotating shaft 6, and an end of reduction torsion spring 5.1 is stuck on the separating brake pallet 4, and the other end is stuck in above the separating brake connecting lever rotating shaft 1.

Above-mentioned primary cut-out combined floodgate snapping keeps structure, can also adopt structure as shown in Figure 4, and promptly described back-moving spring 5 is reset tension springs 5.2, and an end of reset tension spring 5.2 is fixed on the separating brake pallet 4, and the other end is fixed on the separating brake connecting lever.

The utility model course of work is as follows: during feed motion, circuit breaker main shaft 11 is rotated counterclockwise an angle as shown in Figure 5, and separating brake connecting lever 2 is static therebetween, and separating brake pallet 4 is by roller 10 jack-up; When main shaft 11 turned to closing position shown in Figure 5, separating brake pallet 4 reset to snapping shown in Figure 5 position under the effect of back-moving spring 5; When main shaft 11 turns clockwise rollback under the effect of separating brake strength, roller 10 compresses with separating brake pallet top cambered surface snapping, separating brake pallet 4 related separating brake connecting lever 2 whole generations around separating brake connecting lever rotating shaft 1 counterclockwise trend, roller 3 on it is kept by actionless guide's pallet 9 snappings again, separating brake connecting lever integral body is motionless, thereby makes circuit breaker remain on closing position.

Claims

1. primary cut-out combined floodgate snapping keeps structure, by separating brake connecting lever (2) and be located at separating brake connecting lever rotating shaft (1) on the separating brake connecting lever (2), roller (3) and separating brake pallet (4) and constitute, it is characterized in that: on separating brake connecting lever (2), also be provided with pallet rotating shaft (6), separating brake pallet (4) is two separated components with separating brake connecting lever (2), separating brake pallet (4) passes pallet rotating shaft (6) and is movably connected on the separating brake connecting lever (2), establishes back-moving spring (5) between separating brake pallet (4) and separating brake connecting lever (2).

2. primary cut-out combined floodgate snapping according to claim 1 keeps structure, it is characterized in that: back-moving spring (5) is reduction torsion spring (5.1), reduction torsion spring (5.1) is socketed in the pallet rotating shaft (6), one end of reduction torsion spring (5.1) is stuck on the separating brake pallet (4), and the other end is stuck in above the separating brake connecting lever rotating shaft (1).

3. primary cut-out combined floodgate snapping according to claim 1 keeps structure, and it is characterized in that: described back-moving spring (5) is reset tension spring (5.2), and an end of reset tension spring (5.2) is fixed on the separating brake pallet (4), and the other end is fixed on the separating brake connecting lever.