CN102568878B - Shock preventing mechanism having buffering stress-alleviating function - Google Patents
Shock preventing mechanism having buffering stress-alleviating function Download PDFInfo
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- CN102568878B CN102568878B CN201210009429.8A CN201210009429A CN102568878B CN 102568878 B CN102568878 B CN 102568878B CN 201210009429 A CN201210009429 A CN 201210009429A CN 102568878 B CN102568878 B CN 102568878B
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- retainer
- push rod
- circuit breaker
- balance wheel
- surge
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Abstract
The invention discloses a shock preventing mechanism having a buffering stress-alleviating function, which comprises a stopping piece, a balance, a limiting shaft, a return spring, a pin shaft and a rotating shaft, wherein the balance comprises a mandril, a rotating shaft, a compression spring and a clamping plate; and peripheral equipment includes a main shaft and a bracket of a circuit breaker. When the circuit breaker is shocked under the tripping state, the balance is turned below the stopping piece under the effect of a shocking force so as to hold the stopping piece and to further prevent the mistake contact of a circuit breaker contactor under the tripping state; after the shock, the balance can be returned to an initial position under the effect of the return spring, so normal closing of the circuit breaker is free from being influenced; and at the same time, when normal switching-on of the circuit breaker is required at the moment of strong shock, the balance can be pushed out by the stopping piece through the deformation of the balance, and the function of the circuit breaker can be prevented from being lost. Due to the adoption of the shock preventing mechanism, the circuit breaker can be safer and more reliable to use.
Description
Technical field
The present invention relates to a kind ofly there is buffering and unload the surge-proof gear of power function, belong to warship electrical appliance field.
Background technology
Circuit breaker is mainly born the protective effect of distribution line and power consumption equipment overload, under-voltage, short circuit, and circuit breaker closed or disconnect reaches the object of power supply, power failure and change-over circuit.But for warship circuit breaker, if be subject to intense impact and vibration, may there is the phenomenon of instantaneous closure in the circuit breaker in open position.Have a strong impact on operating personnel's safety and the normal operation of equipment, even cause electric power system to damage or cause fire because short circuit appears in system.
Notification number is " CN 100456412C ", name is called in the patent of invention of " flame type circuit breaker impact preventing structure ", adopting utilizes two retainers that scheme locked breaker main shaft is prevented to its false switching at circuit breaker open position, in the time of needs normally closed, the closing operation of recycling mechanism is by its release.The shortcoming of this anti-washing structure is: due to always that it is locked in the time that circuit breaker disconnects, if switch knob breaks down, can make circuit breaker closure in the time that needs use not go up, this will have a strong impact on the normal operation of electric power system.
Summary of the invention
In view of this, the invention provides and a kind ofly there is buffering and unload the surge-proof gear of power function, this mechanism can realize in the time that circuit breaker is subject to thump under gate-dividing state, utilizes the effect of impulsive force by the rotation of retainer limiting circuit breaker main shaft, prevents circuit breaker false switching; After impacting, surge-proof gear automatically resets, and does not affect the normally closed of circuit breaker; While guaranteeing to carry out closing operation in the moment that is subject to thump, do not affect the normal combined floodgate of circuit breaker simultaneously, avoid purpose of breaker failure.
Surge-proof gear of the present invention comprises retainer, balance wheel, limit shaft, back-moving spring, bearing pin and rotating shaft; Ancillary equipment is main shaft and the support of circuit breaker.
Its annexation is: retainer is affixed by circular groove and the breaker main shaft of its upper end, and retainer lower end is square structure.Limit shaft, rotating shaft and bearing pin are all fixed on support.The lower end of balance wheel is flexibly connected with rotating shaft, and can rotate around rotating shaft; Between one side of balance wheel and bearing pin, be connected by back-moving spring, opposite side is relative with retainer.In the time not impacting, balance wheel upper end is connected side with bearing pin and limit shaft is conflicted.
Described balance wheel comprises push rod, rotating shaft, elastomeric element and clamping plate, and a balance wheel upper end side relative with retainer is processed with the groove for push rod and elastomeric element are installed, and between push rod and clamping plate, connects by rotating shaft, and push rod can rotate around this rotating shaft.Push rod upper surface contacts with groove top, between push rod lower surface and bottom portion of groove, is connected by elastomeric element, and one end of elastomeric element acts on push rod, and the other end acts on clamping plate.Push rod lower surface front end has boss, and the distance between boss and bottom portion of groove is 3mm-9mm.When elastomeric element produces after enough deformation, this boss contacts with bottom portion of groove, is convenient to the release of retainer, also can be used for the location of elastomeric element simultaneously.The size of described elastomeric element elastic force should guarantee in the rotation of impacting moment limiting circuit breaker main shaft, to produce enough deformation when breaker closing in the moment of impact impulsive force again, and balance wheel is released.
Push rod upper surface forms L shaped structure with one end of the relative retainer in clamping plate top, for matching with the square structure of retainer lower end, so that retainer is blocked and to be as the criterion.
When balance wheel is positioned at the position inconsistent with limit shaft, between the high order end of L shaped structure and retainer low order end, there is the gap of 0.1mm-8mm, to guarantee that circuit breaker is not subject to the impact of balance wheel when the normally closed, can guarantee that balance wheel can rotate retainer is blocked at retainer in the time being subject to thump simultaneously, thus the rotation of limiting circuit breaker main shaft.
This buffering is unloaded force mechanisms and can be used in the one or both sides of circuit breaker.
Described elastomeric element can be Compress Spring, springs etc., and in the time adopting Compress Spring, the number of Compress Spring can be one or more.
The operation principle of surge-proof gear of the present invention is: in the time that circuit breaker is subject to intense impact, balance wheel, blocks retainer at the effect lower swing of impulsive force to retainer, prevents breaker main shaft rotation, thereby prevent that contact of breaker misconnection is tactile, now back-moving spring is in extended state; After impacting, under the effect of back-moving spring, balance wheel is got back to the position inconsistent with limit shaft, does not affect the normally closed of circuit breaker.And when circuit breaker is in normal vibration situation, balance wheel is failure to actuate under the effect of spring.
In the time needing circuit breaker normally to close a floodgate in the moment of impact impulsive force, now balance wheel under the effect of impulsive force, be rocked to retainer below.Breaker main shaft is applied to normal pressure for a long time, and this pressure reaches elastomeric element by push rod, time elastomeric element produce compressive deformation, thereby make push rod continue around the shaft to rotate, until the boss of push rod lower surface contacts with clamping plate.Now, push rod upper surface is inclined-plane, and the normal pressure that retainer acts on push rod transfers side-thrust to, and balance wheel is released from retainer below, and balance wheel is got back to the position inconsistent with limit shaft under the effect of back-moving spring, and circuit breaker can normally be closed a floodgate.
Beneficial effect:
The present invention utilizes the inertia force of balance wheel in the time being subject to thump, balance wheel is proceeded under the retainer on main shaft, thereby the rotation of restriction main shaft stops contact of breaker misconnection under gate-dividing state to be touched.After the application of back-moving spring can make to impact, balance wheel can be got back to initial position automatically, does not affect the normally closed of circuit breaker, guarantee in the moment that is subject to thump, while applying continuous positive pressure power, balance wheel can be by the deformation of self simultaneously, balance wheel is released, avoided the disabler of circuit breaker.The present invention makes the use of circuit breaker safer, reliable.
0.1mm-8mm gap on balance wheel between the high order end of L shaped structure and retainer low order end, can guarantee that circuit breaker is not subject to the impact of balance wheel in the time of normally closed, and can, before retainer rotates, snap in rapidly retainer in the time being subject to thump.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of balance wheel;
Fig. 3 is the structural representation of the balance wheel of another form.
Wherein, 1-retainer, 2-limit shaft, 3-back-moving spring, 4-bearing pin, 5-balance wheel, 6-rotating shaft, 7-breaker main shaft, 8-support, 9-push rod, 10-rotating shaft, 11-Compress Spring, 12-clamping plate, 13-springs.
Embodiment
Below in conjunction with the accompanying drawing embodiment that develops simultaneously, describe the present invention.
The invention provides a kind of buffering and unload force mechanisms, as shown in Figure 1.This mechanism comprises retainer 1, limit shaft 2, back-moving spring 3, bearing pin 4, balance wheel 5 and rotating shaft 6.Ancillary equipment is breaker main shaft 7 and support 8.
The structure of balance wheel 5 as shown in Figure 2.Comprise push rod 9, rotating shaft 10, Compress Spring 11 and clamping plate 12.A balance wheel 5 upper ends side relative with retainer 1 is processed with the groove for push rod 9 and Compress Spring 11 are installed, and between push rod 9 and clamping plate 12, connects by rotating shaft 10, and push rod 9 can rotate around this rotating shaft 10.Push rod 9 upper surfaces contact with groove top, and two Compress Springs 11 are installed between push rod 9 lower surfaces and clamping plate 12, and Compress Spring 11 one end act on push rod 9, and the other end acts on clamping plate 12.Distance between the protruding and bottom portion of groove of push rod 9 lower surface front ends is 5mm.Push rod 9 upper surfaces form L shaped structure with one end of the clamping plate 12 relative retainers 1 in top, for matching with the square structure of retainer 1 lower end, so that retainer 1 is blocked and to be as the criterion.
Fig. 3 is the balance wheel 5 of another kind of form of the present invention, in this balance plate 5, is provided with and presses shape spring 13 between push rod 9 lower surfaces and clamping plate 12, and Compress Spring 13 one end act on push rod 9, and the other end acts on clamping plate 12.
In the situation that not impacting, balance wheel 5 is positioned at the position inconsistent with limit shaft 2, and back-moving spring 3 is in relaxation state.Now, the high order end of L shaped structure and retainer 1 low order end leave the gap of 2mm, to guarantee that circuit breaker is not subject to the impact of balance wheel 5 when the normally closed, can make balance wheel 5 in the time being subject to thump before retainer 1 rotates, snap in retainer 1 simultaneously.
In sum, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. there is buffering and unload a surge-proof gear for power function, it is characterized in that, comprise retainer (1), balance wheel (5), limit shaft (2), back-moving spring (3), bearing pin (4) and rotating shaft (6); Ancillary equipment is breaker main shaft (7) and support (8);
Its annexation is: retainer (1) is affixed by circular groove and the breaker main shaft (7) of its upper end, and retainer (1) lower end is square structure; Limit shaft (2), bearing pin (4) and rotating shaft (6) are all fixed on support (8); The lower end of balance wheel (5) is flexibly connected with rotating shaft (6); Between one side of balance wheel (5) and bearing pin (4), be connected by back-moving spring (3), opposite side is with relative with retainer (1); In the time not impacting, balance wheel (5) is above connected side and limit shaft (2) and conflicts with bearing pin (4);
Described balance wheel (5) comprises push rod (9), rotating shaft (10), elastomeric element and clamping plate (12), clamping plate (12) upper end side relative with retainer (1) is processed with the groove for push rod (9) and elastomeric element are installed, between push rod (9) and clamping plate (12), connect by rotating shaft (10), push rod (9) can rotate around this rotating shaft (10); Push rod (9) lower surface front end has boss; Push rod (9) upper surface contacts with groove top, between lower surface and bottom portion of groove, is connected by elastomeric element, and one end of elastomeric element acts on push rod (9), and the other end acts on clamping plate (12);
Described push rod (9) upper surface forms L shaped structure with one end of the relative retainer in clamping plate (12) top (1), and the square structure of L shaped structure and retainer (1) lower end matches, so that retainer (1) is blocked and to be as the criterion;
The size of described elastomeric element elastic force guarantees can be in the rotation of impacting moment limiting circuit breaker main shaft (7), can produce enough deformation when breaker closing in the moment of impact impulsive force again, and balance wheel (5) is released.
2. as claimed in claim 1 a kind ofly have buffering and unload the surge-proof gear of power function, it is characterized in that, described balance wheel (5) is positioned at and when the inconsistent position of limit shaft (2), has the gap of 0.1mm-8mm between the high order end of L shaped structure and retainer (1) low order end.
3. as claimed in claim 1 a kind ofly have buffering and unload the surge-proof gear of power function, it is characterized in that, described elastomeric element is Compress Spring (11).
4. as claimed in claim 3 a kind ofly have buffering and unload the surge-proof gear of power function, it is characterized in that, described Compress Spring (11) is one or more.
5. as claimed in claim 1 a kind ofly have buffering and unload the surge-proof gear of power function, it is characterized in that, described elastomeric element is springs (13).
6. as claimed in claim 1 a kind ofly have buffering and unload the surge-proof gear of power function, it is characterized in that, the distance between boss and the bottom portion of groove of described push rod (9) lower surface is 3mm-9mm.
7. a kind of as described in claim 1,3 or 4 has buffering and unloads the surge-proof gear of power function, it is characterized in that, this surge-proof gear uses in the one or both sides of circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210009429.8A CN102568878B (en) | 2012-01-13 | 2012-01-13 | Shock preventing mechanism having buffering stress-alleviating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210009429.8A CN102568878B (en) | 2012-01-13 | 2012-01-13 | Shock preventing mechanism having buffering stress-alleviating function |
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| Publication Number | Publication Date |
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| CN102568878A CN102568878A (en) | 2012-07-11 |
| CN102568878B true CN102568878B (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210009429.8A Active CN102568878B (en) | 2012-01-13 | 2012-01-13 | Shock preventing mechanism having buffering stress-alleviating function |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103000464B (en) * | 2012-12-17 | 2015-05-20 | 无锡市凯旋电机有限公司 | Balance mechanism used for anti-impact vibration of electromagnetic trip |
| CN103208403B (en) * | 2013-04-10 | 2015-05-20 | 上海电器科学研究院 | Impact-resistant and vibration-resistant release for medium-voltage breaker |
| CN110206780A (en) * | 2019-05-21 | 2019-09-06 | 威海华东数控股份有限公司 | Piston rod support device and lathe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2669350Y (en) * | 2003-09-04 | 2005-01-05 | 上海电器科学研究所（集团）有限公司 | Balance anti-impact device for plastic-housing circuit breaker for warship |
| CN1787151A (en) * | 2004-12-09 | 2006-06-14 | 上海电器科学研究所（集团）有限公司 | Flame type circuit breaker impact preventing mechanism |
| CN201048114Y (en) * | 2006-12-27 | 2008-04-16 | 上海电器科学研究所（集团）有限公司 | Anti-false action device |
| CN202487506U (en) * | 2012-01-13 | 2012-10-10 | 常熟瑞特电气股份有限公司 | Anti-impact mechanism with buffering and force-unloading functions |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0568041U (en) * | 1992-02-21 | 1993-09-10 | 三菱電機株式会社 | Circuit breaker |
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2012
- 2012-01-13 CN CN201210009429.8A patent/CN102568878B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2669350Y (en) * | 2003-09-04 | 2005-01-05 | 上海电器科学研究所（集团）有限公司 | Balance anti-impact device for plastic-housing circuit breaker for warship |
| CN1787151A (en) * | 2004-12-09 | 2006-06-14 | 上海电器科学研究所（集团）有限公司 | Flame type circuit breaker impact preventing mechanism |
| CN201048114Y (en) * | 2006-12-27 | 2008-04-16 | 上海电器科学研究所（集团）有限公司 | Anti-false action device |
| CN202487506U (en) * | 2012-01-13 | 2012-10-10 | 常熟瑞特电气股份有限公司 | Anti-impact mechanism with buffering and force-unloading functions |
Non-Patent Citations (1)
| Title |
|---|
| JP实开平5-68041U 1993.09.10 |
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| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 215500 No. 40, Suzhou Road, hi tech Industrial Park, Suzhou, Jiangsu, Changshu Applicant after: Changshu Ruite Electric Co., Ltd. Address before: 215500 No. 40, Suzhou Road, hi tech Industrial Park, Suzhou, Jiangsu, Changshu Applicant before: Changshu Ruite Electrical Apparatus Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: CHANGSHU RUITE ELECTRICAL APPARATUS CO., LTD. TO: CHANGSHU RUITE ELECTRICCO., LTD. |
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