CN204375590U - A kind of time-delay mechanism and use hydraulic actuating mechanism and the circuit breaker of this time-delay mechanism - Google Patents
A kind of time-delay mechanism and use hydraulic actuating mechanism and the circuit breaker of this time-delay mechanism Download PDFInfo
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- CN204375590U CN204375590U CN201420695938.5U CN201420695938U CN204375590U CN 204375590 U CN204375590 U CN 204375590U CN 201420695938 U CN201420695938 U CN 201420695938U CN 204375590 U CN204375590 U CN 204375590U
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- 230000033001 locomotion Effects 0.000 claims abstract description 21
- 239000002828 fuel tank Substances 0.000 claims description 17
- 239000003921 oil Substances 0.000 description 25
- 238000007789 sealing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model relates to time-delay mechanism and uses hydraulic actuating mechanism and the circuit breaker of this time-delay mechanism, time-delay mechanism comprises auxiliary hydraulic cylinder and for going here and there the auxiliary switch be located in corresponding separating brake control loop, auxiliary hydraulic cylinder has the piston rod that axis extends in left-right direction, auxiliary switch has and is placed in moving knife on the right side of described piston rod and quiet cutter, moving knife is connected with can the drive link of rectilinear motion in left-right direction, the left end of drive link have for coordinate with described piston rod right-hand member pushing tow with at drive link towards the forced section driving moving knife when moving right, quiet cutter closes a floodgate.The utility model solves toggle in prior art and causes time-delay mechanism's complex structure and the problem that can produce side force to the piston rod of auxiliary hydraulic cylinder.
Description
Technical field
The utility model relates to a kind of time-delay mechanism and uses hydraulic actuating mechanism and the circuit breaker of this time-delay mechanism.
Background technology
When circuit breaker carries out conjunction point operation, the conjunction point interval of circuit breaker must be controlled, the contact of circuit breaker is closed a floodgate on earth, and make the gas pressure in arc control device air cylinder, air cylinder volume could carry out sub-switching operation after returning to normal condition, again to ensure the break performance of circuit breaker.Because the operate time of relay protection of power system is shorter, and do not allow artificial to add time delay, the conjunction of circuit breaker divides time needs to be ensured by the structure of operating mechanism self, needs to arrange time-delay mechanism in the operating mechanism of therefore circuit breaker.
Existing hydraulic actuating mechanism comprises divide-shut brake hydraulic cylinder and time-delay mechanism, time-delay mechanism comprises the auxiliary hydraulic cylinder that auxiliary switch one has deferred action, the piston rod of auxiliary hydraulic cylinder is connected with the moving knife of auxiliary switch by toggle, and auxiliary switch string is located in the separating brake control loop of hydraulic actuating mechanism.During use, the piston rod of divide-shut brake hydraulic cylinder stretches out and drives the dynamic and static contact of circuit breaker to close a floodgate, the motion of divide-shut brake hydraulic cylinder combined floodgate put in place and time delay certain hour after, auxiliary hydraulic cylinder just can drive auxiliary switch to close, now separating brake control loop just conducting, circuit breaker just can carry out sub-switching operation, and time-delay mechanism ensure that the time interval between the action of feed motion distance separating brake, achieves the self-defense capability of circuit breaker.Existing this time-delay mechanism Problems existing is: the piston rod of auxiliary hydraulic cylinder is connected with the moving knife of auxiliary switch by toggle, the setting of toggle adds the complex structure degree of time-delay mechanism, also occupy larger space simultaneously, be unfavorable for that the miniaturization of time-delay mechanism makes, toggle applies side force to the piston rod of auxiliary hydraulic cylinder simultaneously, this side force causes the piston rod movement of auxiliary hydraulic cylinder dumb, easily there is the problem of time delay failure, piston rod should after being subject to side force in addition, easily there is deflection in the motion of piston rod, this will cause the easy inordinate wear sealing ring of piston rod, easily there is Leakage in auxiliary hydraulic cylinder.
Utility model content
The purpose of this utility model is to provide a kind of time-delay mechanism, causes time-delay mechanism's complex structure and the problem that can produce side force to the piston rod of auxiliary hydraulic cylinder to solve toggle in prior art; The purpose of this utility model is also to provide a kind of hydraulic actuating mechanism and the circuit breaker that use this time-delay mechanism.
In order to solve the problem, in the utility model, the technical scheme of time-delay mechanism is:
Time-delay mechanism, comprise auxiliary hydraulic cylinder and for going here and there the auxiliary switch be located in corresponding separating brake control loop, auxiliary hydraulic cylinder has the piston rod that axis extends in left-right direction, auxiliary switch has moving knife and quiet cutter, moving knife is connected with can the drive link be placed on the right side of described piston rod of rectilinear motion in left-right direction, the left end of drive link have for coordinate with described piston rod right-hand member pushing tow with at drive link towards the forced section driving moving knife when moving right, quiet cutter closes a floodgate.
Described auxiliary switch is by the right-hand member of Bracket setting in described auxiliary hydraulic cylinder.
Described auxiliary switch is a sensitive switch.
In the utility model, the technical scheme of hydraulic actuating mechanism is:
Hydraulic actuating mechanism, comprise time-delay mechanism and separating brake control loop, time-delay mechanism comprises auxiliary hydraulic cylinder and goes here and there the auxiliary switch be located in described separating brake control loop, auxiliary hydraulic cylinder has the piston rod that axis extends in left-right direction, auxiliary switch has moving knife and quiet cutter, moving knife is connected with can the drive link be placed on the right side of described piston rod of rectilinear motion in left-right direction, the left end of drive link have for coordinate with described piston rod right-hand member pushing tow with at drive link towards the forced section driving moving knife when moving right, quiet cutter closes a floodgate.
Described auxiliary switch is by the right-hand member of Bracket setting in described auxiliary hydraulic cylinder.
Described auxiliary switch is a sensitive switch.
Hydraulic actuating mechanism also comprises hydraulic circuit and divide-shut brake hydraulic cylinder, the oil pump that hydraulic circuit comprises fuel tank and is connected with described fuel tank, auxiliary hydraulic cylinder is connected with the oil-out of oil pump by the first oil circuit be arranged in parallel with the rod chamber of divide-shut brake hydraulic cylinder, the rodless cavity of auxiliary hydraulic cylinder, divide-shut brake hydraulic cylinder is connected by the second oil circuit be arranged in parallel, described second oil circuit be connected with auxiliary hydraulic cylinder is gone here and there and is provided with choke valve, separating brake control loop comprises and is arranged at the second oil circuit, two-bit triplet reversal valve between the first oil circuit and fuel tank.
In the utility model, the technical scheme of circuit breaker is:
Circuit breaker, comprise hydraulic actuating mechanism, hydraulic actuating mechanism comprises time-delay mechanism and separating brake control loop, time-delay mechanism comprises auxiliary hydraulic cylinder and goes here and there the auxiliary switch established in described separating brake control loop, auxiliary hydraulic cylinder has the piston rod that axis extends in left-right direction, auxiliary switch has moving knife and quiet cutter, moving knife is connected with can the drive link be placed on the right side of described piston rod of rectilinear motion in left-right direction, the left end of drive link have for coordinate with described piston rod right-hand member pushing tow with at drive link towards the forced section driving moving knife when moving right, quiet cutter closes a floodgate.
Described auxiliary switch is a sensitive switch.
Hydraulic actuating mechanism also comprises hydraulic circuit and divide-shut brake hydraulic cylinder, the oil pump that hydraulic circuit comprises fuel tank and is connected with described fuel tank, auxiliary hydraulic cylinder is connected with the oil-out of oil pump by the first oil circuit be arranged in parallel with the rod chamber of divide-shut brake hydraulic cylinder, the rodless cavity of auxiliary hydraulic cylinder, divide-shut brake hydraulic cylinder is connected by the second oil circuit be arranged in parallel, described second oil circuit be connected with auxiliary hydraulic cylinder is gone here and there and is provided with choke valve, separating brake control loop comprises and is arranged at the second oil circuit, two-bit triplet reversal valve between the first oil circuit and fuel tank.
The beneficial effects of the utility model are: the moving knife of the auxiliary switch in the utility model is connected with can the drive link of rectilinear motion in left-right direction, after the piston rod of auxiliary hydraulic cylinder stretches out, the piston rod of auxiliary hydraulic cylinder can pushing tow drive link towards moving right the moving knife with auxiliary switch, quiet cutter closes a floodgate, because the direction of motion of drive link is consistent with the direction of motion of the piston rod of auxiliary switch, therefore toggle can be saved, the piston rod of auxiliary switch can direct pushing tow drive link and drive moving knife to move, simplify the structure of time-delay mechanism, drive link also can not produce side force to the piston rod of auxiliary switch in addition, ensure that the useful life of auxiliary hydraulic cylinder.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of hydraulic actuating mechanism in the utility model;
The structural representation of Tu2Shi Tu1Zhong time-delay mechanism.
Embodiment
The embodiment of circuit breaker is as shown in Figure 1 and 2: comprise moving contact 1, fixed contact and hydraulic actuating mechanism, hydraulic actuating mechanism comprises separating brake control loop, time-delay mechanism 8, divide-shut brake hydraulic cylinder 2 and hydraulic circuit, divide-shut brake hydraulic cylinder 2 and moving contact are in transmission connection, time-delay mechanism comprises auxiliary hydraulic cylinder 9 and goes here and there the auxiliary switch 10 be located in separating brake control loop, in the present embodiment, auxiliary switch is a sensitive switch, auxiliary switch 10 is arranged on auxiliary hydraulic cylinder by support 13, auxiliary hydraulic cylinder has the piston rod 16 that axis extends in left-right direction, auxiliary switch is a sensitive switch, auxiliary switch has moving knife, quiet cutter and can the drive link 14 of rectilinear motion in left-right direction, sensitive switch belongs to prior art, its concrete structure no longer describes in detail, dynamic, quiet cutter is placed in the right side of the piston rod of auxiliary hydraulic cylinder, drive link 14 is connected with moving knife, drive link 14 is coaxially set with the piston rod of auxiliary hydraulic cylinder, the left end of drive link 14 has for coordinating to drive moving knife at drive link towards when moving right with piston rod 16 right-hand member pushing tow, the forced section that quiet cutter closes a floodgate.When the piston rod 16 of auxiliary hydraulic cylinder stretches out, the forced section of the piston rod pushing tow drive link 14 of auxiliary hydraulic cylinder makes drive link move right, and drive link can drive moving knife, quiet cutter to close a floodgate, thus makes the conducting of separating brake control loop.The oil pump 4 that hydraulic circuit comprises fuel tank 5 and is connected with fuel tank 5, auxiliary hydraulic cylinder 9 is connected with the oil-out of oil pump 4 by the first oil circuit 11 be arranged in parallel with the rod chamber of divide-shut brake hydraulic cylinder 2, the rodless cavity of auxiliary hydraulic cylinder, divide-shut brake hydraulic cylinder is connected by the second oil circuit 12 be arranged in parallel, the second oil circuit be connected with auxiliary hydraulic cylinder is gone here and there and is provided with choke valve 7, separating brake control loop comprises and is arranged at the second oil circuit, two-bit triplet reversal valve 6 between the first oil circuit and fuel tank.Choke valve is arranged on the cylinder body 17 of auxiliary hydraulic cylinder, the piston hole running through cylinder body is in left-right direction provided with in the cylinder body of auxiliary hydraulic cylinder, the valve body 18 of choke valve is installed on the left end of piston hole, piston rod 16 guiding movement of auxiliary hydraulic cylinder is assemblied in the right-hand member of piston hole, the axial hole 20 extended in left-right direction and the radial hole 21 extended along the cylinder body radial direction of auxiliary hydraulic cylinder is provided with in the valve body of choke valve, radial hole is communicated with axial hole, the left end of axial hole is installed with adjustment screw 19, axial hole can be adjusted by moving left and right of adjustment screw, the through-current capacity of radial hole, the rodless cavity of auxiliary hydraulic cylinder is surrounded by the piston rod of auxiliary hydraulic cylinder and the valve body of choke valve.The right-hand member of piston hole is provided with and leads the fairlead passed for piston rod, is provided with sealing ring between fairlead and piston rod.
Oil pump sucks low pressure oil from fuel tank and exports hydraulic oil, the hydraulic oil exported enters in accumulator 3 and stores, when hydraulic actuating mechanism receives combined floodgate order, two-position three-way valve is transformed into closing position, divide-shut brake hydraulic cylinder is all communicated with high-pressure system by two-position three-way valve with the rodless cavity of auxiliary hydraulic cylinder, the piston rod of divide-shut brake hydraulic cylinder and auxiliary hydraulic cylinder all stretches out, divide-shut brake Driven by Hydraulic Cylinder is moved, fixed contact closes a floodgate, due to the effect of choke valve, the action of auxiliary hydraulic cylinder can be slower than divide-shut brake hydraulic cylinder, dynamic, first fixed contact completes feed motion, breaker closing put in place and time delay certain hour after, the piston rod of auxiliary hydraulic cylinder drives the moving knife of auxiliary switch, quiet cutter closes a floodgate, now separating brake control loop conducting, at this moment, hydraulic actuating mechanism just can carry out sub-switching operation, the conjunction this ensures that thering circuit breaker divides operate time, moving axially by adjustment screw, the speed of auxiliary hydraulic cylinder action can be controlled, to meet the requirement of involutory point of time of circuit breaker.When needs breaker open operation, separating brake control loop controls the commutation of two-bit triplet reversal valve, and the second oil circuit is communicated with fuel tank by two-bit triplet reversal valve, thus the piston rod realizing divide-shut brake hydraulic cylinder and auxiliary hydraulic cylinder is retracted.In the utility model, time-delay mechanism can be used for the hydraulic actuating mechanism of various model, controls breaker closing and puts in place and just can carry out separating brake action, to ensure the break performance of circuit breaker after postponing certain hour.
The direction of motion of the drive link of auxiliary switch is consistent with the direction of motion of the piston rod of auxiliary hydraulic cylinder, therefore the reliable transmission that drive mechanism just can ensure between piston rod and drive link need be set between piston rod and drive link, simplify the structure of time-delay mechanism, also reduce taking up room of time-delay mechanism simultaneously; Drive link can not produce side force to piston rod, ensure that the stability of piston rod movement, and piston rod can not produce excessive wear to the sealing ring on fairlead, and auxiliary hydraulic cylinder not easy oil leakage, ensure that the useful life of auxiliary hydraulic cylinder.In other embodiment of this circuit breaker: auxiliary switch also can not by Bracket setting on auxiliary hydraulic cylinder, such as be arranged on the bearing outside independent of auxiliary hydraulic cylinder by auxiliary switch; Auxiliary switch may not be sensitive switch, such as auxiliary switch is one, and common have can the switch of drive link of rectilinear motion; The axis of the axis of drive link and the piston rod of auxiliary switch also can be arranged in parallel.
The embodiment of hydraulic actuating mechanism is as shown in Figure 1 and 2: the concrete structure of hydraulic actuating mechanism is identical with the hydraulic actuating mechanism described in above-mentioned each circuit breaker embodiment, is not described in detail in this.
The embodiment of time-delay mechanism is as shown in Figure 1 and 2: the concrete structure of time-delay mechanism is identical with the time-delay mechanism described in above-mentioned each circuit breaker embodiment, is not described in detail in this.
Claims (10)
1. time-delay mechanism, comprise auxiliary hydraulic cylinder and for going here and there the auxiliary switch be located in corresponding separating brake control loop, auxiliary hydraulic cylinder has the piston rod that axis extends in left-right direction, auxiliary switch has moving knife and quiet cutter, it is characterized in that: moving knife is connected with can the drive link be placed on the right side of described piston rod of rectilinear motion in left-right direction, the left end of drive link have for coordinate with described piston rod right-hand member pushing tow with at drive link towards the forced section driving moving knife when moving right, quiet cutter closes a floodgate.
2. time-delay mechanism according to claim 1, is characterized in that: described auxiliary switch is by the right-hand member of Bracket setting in described auxiliary hydraulic cylinder.
3. time-delay mechanism according to claim 1 and 2, is characterized in that: described auxiliary switch is a sensitive switch.
4. hydraulic actuating mechanism, comprise time-delay mechanism and separating brake control loop, time-delay mechanism comprises auxiliary hydraulic cylinder and goes here and there the auxiliary switch be located in described separating brake control loop, auxiliary hydraulic cylinder has the piston rod that axis extends in left-right direction, auxiliary switch has moving knife and quiet cutter, it is characterized in that: moving knife is connected with can the drive link be placed on the right side of described piston rod of rectilinear motion in left-right direction, the left end of drive link have for coordinate with described piston rod right-hand member pushing tow with at drive link towards the forced section driving moving knife when moving right, quiet cutter closes a floodgate.
5. hydraulic actuating mechanism according to claim 4, is characterized in that: described auxiliary switch is by the right-hand member of Bracket setting in described auxiliary hydraulic cylinder.
6. hydraulic actuating mechanism according to claim 4, is characterized in that: described auxiliary switch is a sensitive switch.
7. the hydraulic actuating mechanism according to claim 4 ~ 6 any one, it is characterized in that: hydraulic actuating mechanism also comprises hydraulic circuit and divide-shut brake hydraulic cylinder, the oil pump that hydraulic circuit comprises fuel tank and is connected with described fuel tank, auxiliary hydraulic cylinder is connected with the oil-out of oil pump by the first oil circuit be arranged in parallel with the rod chamber of divide-shut brake hydraulic cylinder, auxiliary hydraulic cylinder, the rodless cavity of divide-shut brake hydraulic cylinder is connected by the second oil circuit be arranged in parallel, described second oil circuit be connected with auxiliary hydraulic cylinder is gone here and there and is provided with choke valve, separating brake control loop comprises and is arranged at the second oil circuit, two-bit triplet reversal valve between first oil circuit and fuel tank.
8. circuit breaker, comprise hydraulic actuating mechanism, hydraulic actuating mechanism comprises time-delay mechanism and separating brake control loop, time-delay mechanism comprises auxiliary hydraulic cylinder and goes here and there the auxiliary switch established in described separating brake control loop, auxiliary hydraulic cylinder has the piston rod that axis extends in left-right direction, auxiliary switch has moving knife and quiet cutter, it is characterized in that: moving knife is connected with can the drive link of rectilinear motion in left-right direction, the left end of drive link have for coordinate with described piston rod right-hand member pushing tow with at drive link towards the forced section driving moving knife when moving right, quiet cutter closes a floodgate.
9. circuit breaker according to claim 8, is characterized in that: described auxiliary switch is a sensitive switch.
10. circuit breaker according to claim 8 or claim 9, it is characterized in that: hydraulic actuating mechanism also comprises hydraulic circuit and divide-shut brake hydraulic cylinder, the oil pump that hydraulic circuit comprises fuel tank and is connected with described fuel tank, auxiliary hydraulic cylinder is connected with the oil-out of oil pump by the first oil circuit be arranged in parallel with the rod chamber of divide-shut brake hydraulic cylinder, auxiliary hydraulic cylinder, the rodless cavity of divide-shut brake hydraulic cylinder is connected by the second oil circuit be arranged in parallel, described second oil circuit be connected with auxiliary hydraulic cylinder is gone here and there and is provided with choke valve, separating brake control loop comprises and is arranged at the second oil circuit, two-bit triplet reversal valve between first oil circuit and fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420695938.5U CN204375590U (en) | 2014-11-20 | 2014-11-20 | A kind of time-delay mechanism and use hydraulic actuating mechanism and the circuit breaker of this time-delay mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420695938.5U CN204375590U (en) | 2014-11-20 | 2014-11-20 | A kind of time-delay mechanism and use hydraulic actuating mechanism and the circuit breaker of this time-delay mechanism |
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| Publication Number | Publication Date |
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| CN204375590U true CN204375590U (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420695938.5U Withdrawn - After Issue CN204375590U (en) | 2014-11-20 | 2014-11-20 | A kind of time-delay mechanism and use hydraulic actuating mechanism and the circuit breaker of this time-delay mechanism |
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| CN (1) | CN204375590U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319120A (en) * | 2014-11-20 | 2015-01-28 | 河南平高电气股份有限公司 | Time delay mechanism, hydraulic operating mechanism with time delay mechanism and breaker with time delay mechanism |
| CN109979770A (en) * | 2019-05-13 | 2019-07-05 | 梁仓平 | High-tension circuit safe opening method is made using timing closing mode |
| CN110047665A (en) * | 2019-05-13 | 2019-07-23 | 梁仓平 | The automation control method connected safely applied to high-tension circuit |
| CN110285114A (en) * | 2019-05-10 | 2019-09-27 | 平高集团有限公司 | The oil pump component test device of operating mechanism |
| CN110397645A (en) * | 2018-04-24 | 2019-11-01 | 河南平芝高压开关有限公司 | A kind of hydraulic actuating mechanism control oil path failure removing method and device |
-
2014
- 2014-11-20 CN CN201420695938.5U patent/CN204375590U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319120A (en) * | 2014-11-20 | 2015-01-28 | 河南平高电气股份有限公司 | Time delay mechanism, hydraulic operating mechanism with time delay mechanism and breaker with time delay mechanism |
| CN110397645A (en) * | 2018-04-24 | 2019-11-01 | 河南平芝高压开关有限公司 | A kind of hydraulic actuating mechanism control oil path failure removing method and device |
| CN110397645B (en) * | 2018-04-24 | 2020-07-17 | 河南平芝高压开关有限公司 | Method and device for eliminating control oil circuit fault of hydraulic operating mechanism |
| CN110285114A (en) * | 2019-05-10 | 2019-09-27 | 平高集团有限公司 | The oil pump component test device of operating mechanism |
| CN109979770A (en) * | 2019-05-13 | 2019-07-05 | 梁仓平 | High-tension circuit safe opening method is made using timing closing mode |
| CN110047665A (en) * | 2019-05-13 | 2019-07-23 | 梁仓平 | The automation control method connected safely applied to high-tension circuit |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150603 Effective date of abandoning: 20161207 |
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| AV01 | Patent right actively abandoned |