CN108346529A - A kind of mechanism with flexible splitting lock cushioning anti-rebounding device on low-voltage circuit breaker - Google Patents
A kind of mechanism with flexible splitting lock cushioning anti-rebounding device on low-voltage circuit breaker Download PDFInfo
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- CN108346529A CN108346529A CN201710053282.5A CN201710053282A CN108346529A CN 108346529 A CN108346529 A CN 108346529A CN 201710053282 A CN201710053282 A CN 201710053282A CN 108346529 A CN108346529 A CN 108346529A
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- cup
- idler wheel
- holder
- lubricating cup
- piston
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
- H01H3/605—Mechanical arrangements for preventing or damping vibration or shock making use of a fluid damper
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The present invention relates to the mechanisms with flexible splitting lock cushioning anti-rebounding device on a kind of low-voltage circuit breaker, low-voltage circuit breaker includes two fixed plates in left and right, it is located at the main shaft for constituting transmission mechanism between two fixed plates, and the contact mechanism between two fixed plates of setting, mechanism with flexible splitting lock cushioning anti-rebounding device includes holder, lubricating cup, cup emits, piston, connecting lever and idler wheel, holder is fixed in fixed plate, lubricating cup is fixed on holder, fluid is housed in lubricating cup, piston is located in lubricating cup, the upper end of piston is connected with cup and emits, connecting lever is connected on main shaft, idler wheel is connected between two connecting levers, idler wheel is located at the surface that cup emits, in breaker closing state, idler wheel is emitted with cup not to be contacted, in breaker open operation, main axis drives compression cup under roller motion to emit, cup emits drive, and piston moves downward, compress the fluid in lubricating cup.When breaker open operation is very fast, opens away from the case of smaller, mechanism of the present invention can reduce rebound when breaker open operation.
Description
Technical field
The present invention relates to a kind of breaker mechanisms, more particularly, to a kind of flexible splitting lock cushioning counnter attack of band on low-voltage circuit breaker
Play the mechanism of device.
Background technology
Existing low-voltage circuit breaker mechanism is limited using rigid separating brake, and this mechanism arrangement can be the separating brake of breaker rebound width
Value control in a certain range, when it is not quickly that breaker, which is opened away from larger and opening velocity, can play anti-rebound effect, but work as
Low-voltage circuit breaker open away from it is smaller when, it is desirable to the opening velocity of breaker is very fast, to reach reliable separating brake, at this point, mechanism is still
Using rigid limit device, then the amplitude that rebounds when breaker open operation can be very big, causes breaker that arcing, re-breakdown phenomenon occurs.
It is therefore desirable to a kind of mechanism with flexible buffer anti-rebounding device be designed, when breaker open operation is very fast, opens away from smaller situation
Under, to reduce rebound when breaker open operation.
Chinese patent CN 202905577U disclose a kind of vacuum circuit breaker with flexible splitting lock cushioning energy absorption device,
Belong to vacuum circuit breaker technical field.Including insulation shell, the operating mechanism being arranged on insulation shell, link mechanism, contact
The vacuum interrupter supported and be arranged on insulation shell, link mechanism include connecting rod and the lever with axis, and lever setting exists
On insulation shell, one end of connecting rod is hinged with operating mechanism, one end of the other end and lever, hinged, the other end of lever with, touch
One end that head is supported is hinged, and the other end that contact is supported is connected with, vacuum interrupter, feature：Corresponding to lever and position
Flexible splitting lock cushioning energy absorption device is set in the side of connecting rod, flexible splitting lock cushioning energy absorption device is fixed on insulation shell.
Flexible splitting lock cushioning energy absorption device uses two ways in the patent, and one is liquid shock absorber, another kind is spring buffer
Device, liquid shock absorber are to hit to be compressed fluid by lance using the rotation of link mechanism, convert kinetic energy into the heat of fluid
Energy and internal friction, and then expend energy.
Invention content
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide on a kind of low-voltage circuit breaker
Mechanism with flexible splitting lock cushioning anti-rebounding device.
The present invention controls point of breaker using oily buffer unit by adjusting its damped coefficient ratio and oil mass
Lock speed, and by adjusting its mounting height in breaker mechanism, accurate adjustment control breaker open away from.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of mechanism with flexible splitting lock cushioning anti-rebounding device on low-voltage circuit breaker, the low-voltage circuit breaker include a left side
Right two fixed plates are located between the main shaft for constituting transmission mechanism between two fixed plates, and two fixed plates of setting
Contact mechanism, the mechanism with flexible splitting lock cushioning anti-rebounding device include holder, lubricating cup, cup emit, piston, connecting lever and idler wheel,
The holder is fixed in fixed plate, and the lubricating cup is fixed on holder, and fluid, the work are housed in the lubricating cup
Plug is located in lubricating cup, and the upper end of the piston is connected with cup and emits, and the connecting lever is connected on main shaft, idler wheel connection
Between two connecting levers, the idler wheel is located at the surface that cup emits, and in breaker closing state, idler wheel is emitted with cup not to be connect
It touches, in breaker open operation, main axis drives compression cup under roller motion to emit, and cup emits drive, and piston moves downward, compresses lubricating cup
In fluid.
The holder, the holder are separately mounted in two fixed plates in left and right, there are two the lubricating cup is set, point
Piston An Zhuan not be respectively equipped on each lubricating cup and emitted with cup, two connecting levers are respectively equipped at the both ends of main shaft on two holder,
Idler wheel is respectively equipped between two connecting levers, two idler wheels are located at the top that two cups emit.
The considerations of mechanism with flexible splitting lock cushioning anti-rebounding device in the present invention is arranged in pairs, is in balance, more preferably
Provide its stability of equilibrium.
The holder offers centre bore, and the lubricating cup passes vertically through the centre bore of holder, and is installed by screw
On holder.
The height of lubricating cup is adjusted by installing gasket additional on holder, and then adjusts cup and emits the distance between idler wheel, from
And accurately adjust breaker open away from.
The connecting lever is connected on main shaft, is connected with idler wheel by straight pin between two connecting levers, idler wheel is made to be fixed on
Between two connecting levers.
The top of the lubricating cup is equipped with cup lid, and the piston is located in lubricating cup, and piston stage casing passes through cup lid, on
End is emitted with cup to be connect.
The lubricating cup is tubular structure.
Lubricating cup, piston and cup emit the oily buffer unit of composition, and when breaker closing state, idler wheel is emitted with cup not to be contacted, and oil delays
Flushing device is in the state that do not stress, and the fluid in lubricating cup is static to be distributed in lubricating cup bottom.When breaker open operation, spindle axis counterclockwise
Rotation drives connecting lever to rotate counterclockwise together, and the idler wheel among connecting lever tangentially moves counterclockwise, is made by accurate calculation
Oily buffer unit left and right position is rationally proper so that when roller motion is to when being pressed onto cup and emitting, cup emits band piston and transports vertically downward
Dynamic, until cup is emitted to be depressed into and is bonded with cup lid upper surface, gap of the fluid of bottom between piston and lubricating cup is upward in lubricating cup
Reflux, generates idler wheel upward resistance, just plays the effect for reducing separating brake rebound amplitude at this time.
Compared with prior art, the present invention has the following advantages and beneficial effects：
1, the present invention pushes piston using connecting lever and idler wheel so that piston pushes fluid, generates the resistance upward to idler wheel
Power, and then play the effect for reducing separating brake rebound amplitude.
2, the considerations of mechanism with flexible splitting lock cushioning anti-rebounding device in the present invention is arranged in pairs, is in balance, more
Good provides its stability of equilibrium.
3, the present invention can adjust the height of lubricating cup by installing gasket additional on holder, so adjust cup emit with idler wheel it
Between distance, to accurately adjustment breaker open away from.
Description of the drawings
Fig. 1 is mechanism main structure diagram of the present invention under breaker closing state；
Fig. 2 is mechanism side structure schematic view of the present invention under breaker closing state；
Fig. 3 is mechanism side structure schematic view of the present invention under breaker open operation state.
Specific implementation mode
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
A kind of mechanism with flexible splitting lock cushioning anti-rebounding device on low-voltage circuit breaker, as shown in Figure 1-Figure 3, low pressure open circuit
Device includes two fixed plates 1 in left and right, is located at the main shaft 2 for constituting transmission mechanism between two fixed plates 1, and setting two
Contact mechanism between fixed plate 1, the mechanism with flexible splitting lock cushioning anti-rebounding device include that holder 9, lubricating cup 10, cup emit 5, are living
Plug 6, connecting lever 3 and idler wheel 4, holder 9 are fixed in fixed plate 1, and lubricating cup 10 is fixed on holder 9, and fluid is housed in lubricating cup 10, living
Plug 6 is located in lubricating cup 10, and the upper end of piston 6 is connected with cup and emits 5, and connecting lever 3 is connected on main shaft 2, and idler wheel 4 is connected to two connecting levers
Between 3, idler wheel 4 is located at the surface that cup emits 5, and in breaker closing state, idler wheel 4 emits 5 with cup and do not contact, in breaker point
When lock, the rotation of main shaft 2 drives the lower compression cup of the movement of idler wheel 4 to emit 5, and cup emits 5 band pistons 6 and moves downward, and compresses the oil in lubricating cup 10
Liquid.
Holder 9, holder 9 are separately mounted in two fixed plates 1 in left and right, there are two lubricating cup 10 is set, are separately mounted to two
On holder 9, it is respectively equipped with piston 6 and cup on each lubricating cup 10 and emits 5, two connecting levers 3 are respectively equipped at the both ends of main shaft 2, two
Idler wheel 4 is respectively equipped between connecting lever 3, two idler wheels 4 are located at the top that two cups emit 5.The flexible separating brake of band is slow in the present invention
The mechanism for rushing anti-rebounding device is arranged in pairs, and is preferably to provide its stability of equilibrium in the considerations of balancing.
Holder 9 offers centre bore, and lubricating cup 10 passes vertically through the centre bore of holder 9, and is mounted on holder 9 by screw 8
On.The height of lubricating cup 10 is adjusted by installing gasket additional on holder 9, and then adjusts cup and emits the distance between 5 and idler wheel 4, from
And accurately adjust breaker open away from.Connecting lever 3 is connected on main shaft 2, and idler wheel 4 is connected with by straight pin 11 between two connecting levers 3,
Idler wheel 4 is set to be fixed between two connecting levers 3.The top of lubricating cup 10 is equipped with cup lid 7, and 6 lower end of piston is located in lubricating cup 10, piston 6
Stage casing passes through cup lid 7, and upper end emits 5 with cup and connect.Lubricating cup 10 is tubular structure.
Lubricating cup 10, piston 6 and cup emit 5 composition oil buffer units, as shown in Figure 1, 2, when breaker closing state, idler wheel 4
5 are emitted with cup not contact, oily buffer unit is in the state that do not stress, and the fluid in lubricating cup 10 is static to be distributed in 10 bottom of lubricating cup.Such as
Shown in Fig. 3, when breaker open operation, main shaft 2 rotates counterclockwise, and connecting lever 3 is driven to rotate counterclockwise together, the rolling among connecting lever 3
Wheel 4 tangentially moves counterclockwise, keeps oily buffer unit left and right position rationally proper by accurate calculation so that when idler wheel 4
It moving to when being pressed onto cup and emitting 5, cup emits 5 band 6 vertical downward movements of piston, is depressed into and is bonded with 7 upper surface of cup lid until cup emits 5,
Gap of the fluid of bottom between piston 6 and lubricating cup 10 backs up in lubricating cup 10, and upward resistance is generated to idler wheel 4,
The effect for reducing separating brake rebound amplitude is just played at this time.
The above description of the embodiments is intended to facilitate ordinary skill in the art to understand and use the invention.
Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general
Principle is applied in other embodiment without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, ability
Field technique personnel announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be the present invention's
Within protection domain.
Claims (7)
1. the mechanism with flexible splitting lock cushioning anti-rebounding device on a kind of low-voltage circuit breaker, the low-voltage circuit breaker include left and right
Two fixed plates (1) are located at the main shaft (2) for constituting transmission mechanism between two fixed plates (1), and two fixations of setting
Contact mechanism between plate (1), which is characterized in that
Mechanism with flexible splitting lock cushioning anti-rebounding device includes that holder (9), lubricating cup (10), cup emit (5), piston (6), connecting lever
(3) and idler wheel (4), the holder (9) are fixed in fixed plate (1), and the lubricating cup (10) is fixed on holder (9), institute
Fluid is housed, the piston (6) is located in lubricating cup (10), and the upper end of the piston (6) is connected in the lubricating cup (10) stated
Cup emits (5), and the connecting lever (3) is connected on main shaft (2), and the idler wheel (4) is connected between two connecting levers (3), described
Idler wheel (4) be located at the surface that cup emits (5), in breaker closing state, idler wheel (4) emits (5) with cup and does not contact, in open circuit
When device separating brake, compression cup emits (5) under main shaft (2) rotation drives idler wheel (4) to move, and cup emits (5) band piston (6) and moves downward, and presses
Fluid in contracting lubricating cup (10).
2. the mechanism with flexible splitting lock cushioning anti-rebounding device on a kind of low-voltage circuit breaker according to claim 1, special
Sign is that the holder (9), the holder (9) are separately mounted on two fixed plates (1) in left and right, the lubricating cup
(10) it there are two setting, is separately mounted on two holders (9), piston (6) is respectively equipped on each lubricating cup (10) and emits (5) with cup,
Two connecting levers (3) are respectively equipped at the both ends of main shaft (2), idler wheel (4), two idler wheels (4) are respectively equipped between two connecting levers (3)
It is located at the top that two cups emit (5).
3. the mechanism with flexible splitting lock cushioning anti-rebounding device on a kind of low-voltage circuit breaker according to claim 1, special
Sign is that the holder (9) offers centre bore, and the lubricating cup (10) passes vertically through the centre bore of holder (9), and passes through
Screw (8) is mounted on holder (9).
4. the mechanism with flexible splitting lock cushioning anti-rebounding device on a kind of low-voltage circuit breaker according to claim 1, special
Sign is, the height of lubricating cup (10) is adjusted by installing gasket additional on holder (9), so adjust cup emit (5) and idler wheel (4) it
Between distance, so as to adjust breaker open away from.
5. the mechanism with flexible splitting lock cushioning anti-rebounding device on a kind of low-voltage circuit breaker according to claim 1, special
Sign is that the connecting lever (3) is connected on main shaft (2), and idler wheel is connected with by straight pin (11) between two connecting levers (3)
(4)。
6. the mechanism with flexible splitting lock cushioning anti-rebounding device on a kind of low-voltage circuit breaker according to claim 1, special
Sign is that the top of the lubricating cup (10) is equipped with cup lid (7), and the piston (6) lower end is located in lubricating cup (10), piston
(6) stage casing passes through cup lid (7), and upper end emits (5) with cup and connect.
7. the mechanism with flexible splitting lock cushioning anti-rebounding device on a kind of low-voltage circuit breaker according to claim 1, special
Sign is that the lubricating cup (10) is tubular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710053282.5A CN108346529B (en) | 2017-01-22 | 2017-01-22 | Mechanism with flexible brake-separating buffering anti-rebound device on low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710053282.5A CN108346529B (en) | 2017-01-22 | 2017-01-22 | Mechanism with flexible brake-separating buffering anti-rebound device on low-voltage circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108346529A true CN108346529A (en) | 2018-07-31 |
| CN108346529B CN108346529B (en) | 2020-06-19 |
Family
ID=62962778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710053282.5A Active CN108346529B (en) | 2017-01-22 | 2017-01-22 | Mechanism with flexible brake-separating buffering anti-rebound device on low-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108346529B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109427504A (en) * | 2017-08-23 | 2019-03-05 | 上海电器股份有限公司人民电器厂 | A kind of electromagnetic type anti-rebounding device and the breaker with adjusting opening velocity function |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2570943Y (en) * | 2002-09-26 | 2003-09-03 | 北京北开电气股份有限公司 | Breaker splitting lock cushioning operating device |
| CN2879398Y (en) * | 2006-02-24 | 2007-03-14 | 广东省顺德开关厂有限公司 | Vacuum breaker with double buffer shock-proof device |
| CN201340823Y (en) * | 2008-11-25 | 2009-11-04 | 四川电器集团有限公司 | Three-phase sealed vacuum circuit breaker |
| CN202381615U (en) * | 2011-11-29 | 2012-08-15 | 青岛特锐德电气股份有限公司 | Hydraulic oil buffer |
| CN202796516U (en) * | 2012-07-23 | 2013-03-13 | 江苏大全长江电器股份有限公司 | Circuit breaker switch-off buffering and limiting structure |
| CN202905632U (en) * | 2012-11-08 | 2013-04-24 | 成都科星电力电器有限公司 | A brake-separating position-limiting adjusting mechanism |
| CN206489998U (en) * | 2017-01-22 | 2017-09-12 | 上海电器股份有限公司人民电器厂 | Mechanism with flexible splitting lock cushioning anti-rebounding device on low-voltage circuit breaker |
-
2017
- 2017-01-22 CN CN201710053282.5A patent/CN108346529B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2570943Y (en) * | 2002-09-26 | 2003-09-03 | 北京北开电气股份有限公司 | Breaker splitting lock cushioning operating device |
| CN2879398Y (en) * | 2006-02-24 | 2007-03-14 | 广东省顺德开关厂有限公司 | Vacuum breaker with double buffer shock-proof device |
| CN201340823Y (en) * | 2008-11-25 | 2009-11-04 | 四川电器集团有限公司 | Three-phase sealed vacuum circuit breaker |
| CN202381615U (en) * | 2011-11-29 | 2012-08-15 | 青岛特锐德电气股份有限公司 | Hydraulic oil buffer |
| CN202796516U (en) * | 2012-07-23 | 2013-03-13 | 江苏大全长江电器股份有限公司 | Circuit breaker switch-off buffering and limiting structure |
| CN202905632U (en) * | 2012-11-08 | 2013-04-24 | 成都科星电力电器有限公司 | A brake-separating position-limiting adjusting mechanism |
| CN206489998U (en) * | 2017-01-22 | 2017-09-12 | 上海电器股份有限公司人民电器厂 | Mechanism with flexible splitting lock cushioning anti-rebounding device on low-voltage circuit breaker |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109427504A (en) * | 2017-08-23 | 2019-03-05 | 上海电器股份有限公司人民电器厂 | A kind of electromagnetic type anti-rebounding device and the breaker with adjusting opening velocity function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108346529B (en) | 2020-06-19 |
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