CN2802695Y - Hydraulic spring operation mechanism - Google Patents
Hydraulic spring operation mechanism Download PDFInfo
- Publication number
- CN2802695Y CN2802695Y CN 200520102547 CN200520102547U CN2802695Y CN 2802695 Y CN2802695 Y CN 2802695Y CN 200520102547 CN200520102547 CN 200520102547 CN 200520102547 U CN200520102547 U CN 200520102547U CN 2802695 Y CN2802695 Y CN 2802695Y
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- cylinder
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- working cylinder
- power cylinder
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Abstract
The utility model relates to a hydraulic spring operation mechanism which belongs to an operation device of an opening and a closing switches of a high-tension switch. The utility model is characterized in that on the basis of the original structure, a control valve (7) is changed into a mechanical touch type reversing valve. The outer side of a working cylinder (9) is sheathed with an annular energy storage cylinder, and is connected with a disk spring (10), and the annular energy storage cylinder is respectively matched with the working cylinder (9) and a power cylinder (8). Oil paths of the working cylinder (9) and the power cylinder (8) are communicated. A sealing device is arranged on a contact surface among the annular energy storage cylinder, the working cylinder (9) and the power cylinder (8). The side of the mechanical touch type reversing valve is provided with a spring box (27) and a set of electromagnets (26) for the opening and the closing switches, and the electromagnets (26) are connected with a locking device on the spring box (27). Because the utility model adopts the annular energy storage cylinder, the integral shape is reduced, the sealing points are reduced, the form and position tolerance is easy to control, and the consistency does not need when the utility model is assembled. The opening and the closing switches share a set of electromagnets, the control valve can automatically maintain the pressure by not using the closing switch, the integral reliability is improved, and the simultaneous performance of a three-phase opening a three-phase closing switches is improved. The utility model has the advantages of reasonable and compact structure, low cost and no misoperation.
Description
Technical field
The utility model relates to power industry mesohigh switch breaking-closing operating equipment, the particularly hydraulic pressure spring operating mechanism of module combined type structure.
Background technology
At present, the actuating system of high-voltage switch gear develops into pneumatic mechanism by electromagnetic mechanism both at home and abroad, and then develops into hydraulic mechanism.But because Hydraulic Elements are separate type, pipeline is many, joint is many, thereby sealing part is many, and the leakage of oil problem is serious, has influenced the high-voltage switch gear reliability of operation.Therefore develop hydraulic pressure spring operating mechanism abroad.Its principle is a multilevel control valve, just electromagnet, a step valve, secondary valve, working cylinder system pattern, basic structure comprises support, fuel tank, power cylinder, working cylinder, loaded cylinder, control valve, divide-shut brake electromagnet, dish spring, motor, speed reduction gearing, oil pump and fuel outlet valve etc.Though reliability improves greatly, but what the most easily go wrong when operation is a step valve, in case the one-level valve port is because of well cuts or self reset bad, will cause continuous deciliter jump, have a strong impact on the safe operation of circuit breaker, and accumulator has adopted three branch loaded cylinders, general shape is big, seal point is many, and the Geometrical Tolerance Principle precision height of three loaded cylinders, and difficulty is big during assembling; In addition, this kind product separating brake, combined floodgate are equipped with an electromagnet and a step valve separately, need two to overlap control loop separately, after carrying out new standard, require the two branches of pairing, four electromagnet and four one step valves will be set, make complex structure, seal point increases, and accident potential's face enlarges; Secondary valve is pressed for keeping the combined floodgate self-sustaining, will bore a φ 0.5mm hole road on the structure, processing difficulties not only, in case and aperture be blocked and can make mechanism close not brake application.
The utility model content
The purpose of this utility model is at above-mentioned defective, and a kind of hydraulic pressure spring operating mechanism of novel structure is provided.
The technical solution of the utility model is on the original structure basis, control valve (7) is improved to is installed in the mechanical actuating type reversal valve that power cylinder (8) is other and oil circuit is connected, the conversion of realization oil circuit, stretching out and withdrawal of the middle piston rod of Control work cylinder (9) finished combined floodgate and moved with separating brake; Loaded cylinder (12) is formed in annular loaded cylinder of the outer suit of working cylinder (9) and is connected with dish spring (10), this annular loaded cylinder is respectively with working cylinder (9) with power cylinder (8) is movable cooperates, and working cylinder (9) communicates with power cylinder (8) oil circuit; On the contact-making surface of annular loaded cylinder and working cylinder (9) and power cylinder (8), sealing device is installed; At an other spring case (27) and the cover divide-shut brake electromagnet (26) of being equipped with of mechanical actuating type reversal valve, this electromagnet (26) is connected with locker on the spring case (27).
Said divide-shut brake electromagnet (26), the clasp of the last locker of actuating strut on it and spring case (27) is inconsistent; Slide block (25) on spring case (27) the box inner orbit flexibly connects with the connecting rod (23) that is installed in the leverage on the connecting lever (1), and piston rod flexibly connects in the slide plate in the leverage (22) and the working cylinder (9).
Said spring case (27), the tooth bar in it is meshed with the gear (28) on being installed in bent axle (30), and freewheel clutch (29) is housed on the gear (28), and the piston rod external part in bent axle (30) and the mechanical actuating type reversal valve flexibly connects.
The pressure relief safety valve (32) of control loaded cylinder stroke also is installed on the said power cylinder (8), this valve (32) communicates with power cylinder (8) oil circuit, this valve (32) side is equipped with manual pressing plate (33) and pull bar (35), and both flexibly connect, manually on the pressing plate (33) back-moving spring is housed, manually pressing plate (33) is provided with arc boss and is connected with clamp on the bearing (34), bearing (36) flexible connection on pull bar (35) and the loaded cylinder (12).
Said connecting lever (1) is fixedlyed connected with the connecting lever (38) in being installed in support (21), and connecting lever (38) is connected with joint (40) bolt (39), and joint (40) is slidingly matched with guide rail (37).
The utility model has the advantages that: 1. owing to only adopt an annular loaded cylinder to be sleeved on the working cylinder (9), lacked three branch loaded cylinders, general shape is little, seal point has lacked 16 than original structure, dwell time is long, and form and position tolerance is controlled easily, the harmony requirement of arming timing; 2. the shared cover electromagnet of divide-shut brake directly triggers control valve, has stopped two orders of machinery in the past and has been strayed into tripping or the malfunction that causes simultaneously, has simplified the trip gear and the control corresponding loop of mechanism greatly; 3. adopt mechanical actuating type reversal valve, need not hydraulic pilot valve (step valve), operating characteristics and pressure independent, quick action can be prevented the branch slowly of locking mechanism automatically and closes slowly, the branch slowly that also can manually carry out mechanism with close slowly.
Description of drawings
Fig. 1 is the utility model structure cutaway view.
Fig. 2 is the utility model side direction view.
Fig. 3 is that the A of Fig. 2 is to view.
Fig. 4 is that the B-B of Fig. 2 is to view.
Embodiment
Further describe embodiment below in conjunction with accompanying drawing.
With reference to Fig. 1,1-connecting lever, 2-splined shaft, 3-connecting plate, 4-fuel tank cap, 5-sealing ring, 6-spring base, 7-control valve, 8-power cylinder, 9-working cylinder, 10-dish spring, 11-base, 12-loaded cylinder, 13-oil pump, 14-fuel outlet valve, the transmission of 15-bevel gear are paid, 16-DC motor, 17-fuel tank, 18-sealing ring, 19-sealing ring, 20-bar cover, 21-support.As shown, mechanical actuating type reversal valve that oil circuit communicates is installed as control valve (7) in that power cylinder (8) is other, the stretching out and withdrawal of piston rod in the Control work cylinder (9), and the dish spring (10) of compressing into forward of control loaded cylinder (12) resets with returning, and finishes and closes a floodgate and the separating brake action.Valve rod right-hand member in the reversal valve (7) is a camel peak back of the body shape clamp, and its corresponding is Spring Card, remains the fixing of stem position.Loaded cylinder (12) is to be sleeved on outside the working cylinder (9), ringwise, and is connected with dish spring (10).The annular loaded cylinder cooperates with power cylinder (8) and working cylinder (9) activity respectively, and working cylinder (9) communicates with power cylinder (8) oil circuit, for preventing leakage of oil, on the contact-making surface of annular loaded cylinder and working cylinder (9) and power cylinder (8) sealing device is installed all.Working cylinder (9) stretches out at every turn and closes a floodgate or the withdrawal separating brake, all drives the leverage on working cylinder (9) piston rod top, thereby drivening rod (3) makes reversal valve (7) work, and promotion loaded cylinder (12) work is compressed into dish spring (10) and carried out energy storage.Piston rod stretches out outside the fuel tank (17) in the working cylinder (9), for preventing leakage of oil, piston rod cooperates with bar cover (20) is movable, and sealing ring (19) is installed, between bar cover (20) and fuel tank (17) sealing ring (18) is installed also, between fuel tank cap (4) and fuel tank (17) sealing ring (5) is installed also.On DC motor (16) output shaft, the bevel gear transmission is installed pays, drive oil pump (13) work, oil pump (13) is a plunger displacement pump, and fuel outlet valve (14) also is installed on it.
With reference to Fig. 2, Fig. 3, Fig. 4,10-dish spring, 11-base, 22-slide plate, 23-connecting rod, 24-oil ga(u)ge, 25-slide block, 26-electromagnet, 27-spring case, 28-gear, 29-freewheel clutch, 30-bent axle, 31-bearing, 32-pressure relief safety valve, the manual pressing plate of 33-, 34-bearing, 35-pull bar, 36-bearing, 37-guide rail, 38-connecting lever, 39-bolt, 40-joint.
Making process: electromagnet (26) obtains reclosing command, actuating strut hits the clasp dropout discharges spring case (27) energy storage, thereby make tooth bar move to left driven gear (28) by clutch buckling state drive eccentric crankshaft (30) rotation, stirring control reversal valve (7) valve rod moves to left, make hydraulic oil enter the right chamber (also there is hydraulic oil in left chamber) of working cylinder (9) piston rod, because left and right sides face area is in different size, make piston rod right-hand member pressure greater than left end pressure, piston rod in the working cylinder (9) moves to left and realizes closing a floodgate, leverage moves to right driving sliding block (25) simultaneously, continue to give spring case (27) energy storage, for sub-switching operation is next time prepared, and clasp is at the energy storage rear catch that puts in place.As shown, at an other mounting spring box of mechanical actuating type reversal valve (27) and a cover divide-shut brake electromagnet (26), electromagnet (26) is connected with locker on the spring case (27), just actuating strut on the electromagnet (26) and the clasp on the spring case (27) are inconsistent, can manually also can be electronic.When electromagnet (26) energising work, actuating strut bump clasp is threaded off the rack bar of compression spring, impacts outward, drive rack and pinion (28), thereby drive bent axle (30), make that valve rod moves right in the reversal valve, open the oil circuit that leads to working cylinder (9), loaded cylinder (8) releases energy at dish spring (10) and resets simultaneously, produce huge pressure, make the piston rod in the working cylinder (9) protruding, thereby the high-voltage switch gear plug-in strip that will be connected on the joint (40) closes a floodgate.
Separating brake process: when electromagnet (26) obtains the separating brake instruction, actuating strut hits the clasp dropout discharges spring case (27) energy storage, thereby make the tooth bar driven gear (28) that moves to left, driving eccentric crankshaft (30) stepping again rotates, stir reversal valve (7) valve rod and move to right, then high-pressure oil passage is blocked the right chamber that no longer enters working cylinder (9) piston; On the contrary, right chamber is communicated with the low pressure oil circuit, the high pressure of right chamber is discharged, and the high pressure in the left chamber keeps.Piston rod is under left chamber's high pressure oil pressure effect, and moving to right fast reaches the purpose of quick acting switching-off.Simultaneously, leverage moves to right driving sliding block (25) and continues to make spring case (27) energy storage, for closing operation is next time prepared.Slide block (25) on spring case (27) the box inner orbit flexibly connects with the connecting rod (23) that is installed in the leverage on the connecting lever (1), when working cylinder (9) when piston rod stretches out, drive leverage, making connecting rod (23) promote slide block (25) advances the spring in the spring case (27) toward compaction direction, at this moment clasp works the tooth bar effect that fastens, and rack and pinion (28) is meshed, gear (28) is gone up freewheel clutch (29) is installed, only advance not move back, gear (28) is contained on the bent axle (30), bent axle (30) again with mechanical actuating type reversal valve in the piston rod external part flexibly connect.As want separating brake, and then manually press the actuating strut on the lower electromagnet (26), up push clasp open, tooth bar is threaded off, under the effect of spring, tooth bar moves, and driven gear (28) rotates, thereby driving bent axle (30) rotates, also just the piston rod in the reversal valve is promoted left, realize the oil circuit commutation, make working cylinder (9) center oil circuit pressure greater than outside oil circuit pressure, piston rod then moves toward right-hand member, reaches the purpose of separating brake.
The pressure relief safety valve (32) of control loaded cylinder stroke also is installed on power cylinder (8), it communicates with oil circuit in the power cylinder (8), the other manual pressing plate (33) that is equipped with of this valve (32) flexibly connects with pull bar (35), manually on the pressing plate (33) back-moving spring is housed, and manually pressing plate (33) is provided with arc boss and is connected with clamp on the bearing (34), when manual pressing plate (33) and pull bar (35) move with dish spring (10) toward right-hand member, during to clamp, back down arc boss and press inward, make this moment the oil in the power cylinder (8) locate to release toward safety valve (32).Bearing (36) on pull bar (35) and the loaded cylinder (12) flexibly connects.As seen from Figure 3, connecting lever (1) is fixedlyed connected with the connecting lever (38) in being installed in support (21), and connecting lever (38) is connected with joint (40) bolt (39) again, and joint (40) is slidingly matched with guide rail (37).As can be seen from Figure 4, the installation site of gear (28) and freewheel clutch (29) is also found out in the installation site of electromagnet (26).
The utility model only becomes with an annular loaded cylinder from three branch loaded cylinders of original structure, and general shape has diminished, and reduces seal point significantly, because annular loaded cylinder is mounted on working cylinder (9) excircle, therefore helps three synchronised of switch simultaneously; The shared cover electromagnet of divide-shut brake is simplified greatly in control, thereby is reduced the misoperation accident; Only become with step valve control oil channel commutation from multistage valve, make operating characteristics reliable and stable, the control time is accurate.
Claims (5)
1, hydraulic pressure spring operating mechanism comprises support, fuel tank, power cylinder, working cylinder, loaded cylinder, control valve, divide-shut brake electromagnet, dish spring, motor, speed reduction gearing, oil pump and fuel outlet valve, it is characterized in that:
A, said control valve (7) are mounted in the mechanical actuating type reversal valve that power cylinder (8) is other and oil circuit is connected, and stretching out and withdrawal of the middle piston rod of Control work cylinder (9) finished combined floodgate and moved with separating brake:
B, said loaded cylinder (12) are annular loaded cylinders of suit and be connected with dish spring (10) outside working cylinder (9), and this annular loaded cylinder is respectively with working cylinder (9) with power cylinder (8) is movable cooperates, and working cylinder (9) communicates with power cylinder (8) oil circuit; On the contact-making surface of annular loaded cylinder and working cylinder (9) and power cylinder (8), sealing device is installed;
C, at an other spring case (27) and the cover divide-shut brake electromagnet (26) of being equipped with of mechanical actuating type reversal valve, this electromagnet (26) is connected with locker on the spring case (27).
2, according to the said hydraulic pressure spring operating mechanism of claim 1, it is characterized in that said divide-shut brake electromagnet (26), the clasp of the last locker of actuating strut on it and spring case (27) is inconsistent; Slide block (25) on spring case (27) the box inner orbit flexibly connects with the connecting rod (23) that is installed in the leverage on the connecting lever (1), and piston rod flexibly connects in the slide plate in the leverage (22) and the working cylinder (9).
3, according to claim 1 or 2 said hydraulic pressure spring operating mechanisms, it is characterized in that said spring case (27), tooth bar in it is meshed with the gear (28) on being installed in bent axle (30), freewheel clutch (29) is housed on the gear (28), and the piston rod external part in bent axle (30) and the mechanical actuating type reversal valve flexibly connects.
4, according to claim 1 or 2 said hydraulic pressure spring operating mechanisms, it is characterized in that on said power cylinder (8), also being equipped with the pressure relief safety valve (32) of control loaded cylinder stroke, this valve (32) is connected with power cylinder (8) oil circuit, this valve (32) side is equipped with manual pressing plate (33) and pull bar (35), and both flexibly connect, manually on the pressing plate (33) back-moving spring is housed, manually pressing plate (33) is provided with arc boss and is connected with clamp on the bearing (34), bearing (36) flexible connection on pull bar (35) and the loaded cylinder (12).
5, according to the said hydraulic pressure spring operating mechanism of claim 2, connecting lever (38) in it is characterized in that said connecting lever (1) and being installed in support (21) is fixedlyed connected, connecting lever (38) is connected with joint (40) bolt (39), and joint (40) is slidingly matched with guide rail (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520102547 CN2802695Y (en) | 2005-05-28 | 2005-05-28 | Hydraulic spring operation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520102547 CN2802695Y (en) | 2005-05-28 | 2005-05-28 | Hydraulic spring operation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2802695Y true CN2802695Y (en) | 2006-08-02 |
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ID=36847399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520102547 Expired - Lifetime CN2802695Y (en) | 2005-05-28 | 2005-05-28 | Hydraulic spring operation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2802695Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101334051B (en) * | 2008-08-05 | 2010-06-09 | 沈阳飞机工业（集团）有限公司 | Mechanical supercharger |
| CN108717914A (en) * | 2018-07-13 | 2018-10-30 | 西安西电开关电气有限公司 | Cylinder body and breaker for breaker hydraulic pressure spring operating mechanism |
| CN112700982A (en) * | 2020-12-14 | 2021-04-23 | 河南平高电气股份有限公司 | Hydraulic operating mechanism of circuit breaker |
-
2005
- 2005-05-28 CN CN 200520102547 patent/CN2802695Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101334051B (en) * | 2008-08-05 | 2010-06-09 | 沈阳飞机工业（集团）有限公司 | Mechanical supercharger |
| CN108717914A (en) * | 2018-07-13 | 2018-10-30 | 西安西电开关电气有限公司 | Cylinder body and breaker for breaker hydraulic pressure spring operating mechanism |
| CN108717914B (en) * | 2018-07-13 | 2019-08-02 | 西安西电开关电气有限公司 | Cylinder body and breaker for breaker hydraulic pressure spring operating mechanism |
| CN112700982A (en) * | 2020-12-14 | 2021-04-23 | 河南平高电气股份有限公司 | Hydraulic operating mechanism of circuit breaker |
| CN112700982B (en) * | 2020-12-14 | 2024-04-16 | 河南平高电气股份有限公司 | Hydraulic operating mechanism of circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150528 Granted publication date: 20060802 |