CN101626148B - Draw-out device - Google Patents
Draw-out device Download PDFInfo
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- CN101626148B CN101626148B CN 200810116234 CN200810116234A CN101626148B CN 101626148 B CN101626148 B CN 101626148B CN 200810116234 CN200810116234 CN 200810116234 CN 200810116234 A CN200810116234 A CN 200810116234A CN 101626148 B CN101626148 B CN 101626148B
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- resting guide
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Abstract
The invention discloses a draw-out device, which comprises a pair of side plates, a rotating shaft, two sets of gear drive mechanisms having the same structure, two pairs of fixed guide plates, a pair of sliding guide plates and a pair of supports, wherein the rotating shaft is arranged on the side plates; the gear drive mechanisms comprise a pair of driving gear wheels, a pair of intermediate gears and a pair of sector-gear cams having cam slideways, and the driving gears are fixed on the two ends of the rotating shaft and drive the sector-gear cams through the intermediate gears; the upper and lower fixed guide plates are arranged on the inner sides of the side plates, the outer front lower ends of the lower fixed guide plates are fixed with elastic stop pins and a slideway is formed between the upper rand lower fixed guide plates; the sliding guide plates are in front and back sliding connection with the inner sides of the lower fixed guide plates and limiting grooves are arranged in front and at back of the bottom ends of the sliding guide plates; and the supports are fixed on the two sides of an underframe of the body of the breaker and are fixed with upper rollers matched with the cam slideways and lower rollers rolling in the slideway. The device can ensure the reasonable stress, smooth movement and small operating force of the breaker body during the access to a drawer and is safe and reliable in structure.
Description
Technical field
The present invention relates to a kind of withdrawing device, particularly a kind of withdrawable circuit breaker of realizing gets into or withdraws from the device of drawer.
Background technology
Circuit breaker is a most important controller switching equipment in the low-voltage distribution system, withdrawable circuit breaker especially owing to have installation, maintenance simply and easily characteristics be widely used.Current, along with the raising that design science property, reliability and hommization require, the withdrawing device of circuit breaker is had higher requirement.Withdrawable circuit breaker is made up of breaker body and drawer two parts, breaker body when getting into or withdrawing from drawer, require the stressed position of breaker body rationally, motion steadily, and operating physical force is little.
In existing drawer structure, the stress point of breaker body is in the back lower place, and there is very big resistance in breaker body when the turnover drawer, and therefore this structure makes breaker body receive the tilting moment of rotating around stress point easily.This not only makes operating physical force increase, bumpy motion, and easily the structure on the breaker body is caused certain destructive danger.In addition, the breaker body guide frame reliability that slide in front and back in drawer is not high, easy deformation.
Summary of the invention
In view of above-mentioned, the purpose of this invention is to provide a kind of reasonable stress, operating physical force is little, motion is steady and security reliability is high withdrawing device.
The present invention realizes through following technical proposals:
A kind of withdrawing device; It comprises: the side plate of placing about a pair of, rotating shaft, two groups of structures are identical and be arranged symmetrically in the inboard gear drive of said pair of side plates, a pair of resting guide, a pair of resting guide, a pair of sliding guide, a pair of carriage down gone up, wherein:
Said rotating shaft is installed on the said pair of side plates;
Said two groups of gear drives comprise a pair of fan finger cam that is driven by said rotating shaft, and this fan finger cam has the uncovered cam slideway of front end;
Said a pair of upward resting guide, a pair of resting guide down are installed in the inboard of pair of side plates respectively, and preceding lower end, the outside of following resting guide is the elasticity banking pin fixedly, forms slideway between last resting guide and the following resting guide;
Said sliding guide is positioned at the inboard of resting guide down; Be slidingly connected with following resting guide front and back; The top of sliding guide is said prolongation of going up the slideway that forms between resting guide and the following resting guide, and the front and back of the bottom of sliding guide are equipped with and hold the stopper slot that the elasticity banking pin embeds;
Said carriage is fixed on the both sides of breaker body underframe, is fixed with roller bearing and following roller bearing on it, rolls in the slideway that following roller bearing forms between resting guide and the following resting guide on said, and last roller bearing cooperates with the cam slideway of fanning finger cam.
In implementing measure of the present invention:
Said two groups of gear drives comprise a pair of driving gear, a pair of idler gear and a pair of fan finger cam, and a pair of driving gear is fixed on the two ends of said rotating shaft; One idler gear is positioned at the centre of a driving gear and a fan finger cam, and another idler gear is positioned at the centre of another driving gear and another fan finger cam, and idler gear and driving gear and the engagement of fan finger cam.
The said profile that goes up resting guide, following resting guide is
shape.
Said resting guide down has mounting groove, sliding tray, fulcrum post, and mounting groove and sliding tray communicate and be positioned at the sliding tray below, and fulcrum post is positioned at the inboard preceding lower end of resting guide down; Said sliding guide has sliding tray, mounting groove, fulcrum post, and mounting groove and sliding tray communicate and be positioned at the sliding tray below, and fulcrum post is positioned at upper end, the outer rear flank of sliding guide; Sliding tray on the fulcrum post of sliding guide and the following resting guide is slidingly matched, and the fulcrum post on the sliding tray of sliding guide and the following resting guide is slidingly matched.
Said elasticity banking pin is a spring leaf, and the one of which end is fixed on down the preceding lower end, the outside of resting guide, and the other end is provided with rivet, and springing laterally.
Fixedly pull pin in the front end outside of said sliding guide.
The driving gear of said gear drive is a sector gear.
The present invention's advantage compared with present technology is:
Since the breaker body stress point at postmedian, stress point is reasonable, avoids occurring tilting moment, and operating physical force is reduced greatly;
2. adopt board-like, whole guide frame, robust motion, reliability are strengthened greatly;
3. sliding guide has auto-lock function, has improved processing safety.
Description of drawings:
Fig. 1 is the perspective view of one embodiment of the invention;
Fig. 2 is resting guide of the present invention and sliding guide operation principle perspective view;
Fig. 3 is the operating state planar structure sketch of the present invention's one instance.
Embodiment:
Below in conjunction with accompanying drawing the present invention is done further narration.
The present invention gets into or withdraw from the withdrawing device of drawer for a kind of withdrawable circuit breaker of realizing, it comprises: the side plate placed about a pair of 2, rotating shaft 32, two groups of structures are identical and be arranged symmetrically in the inboard gear drive of said pair of side plates, a pair of resting guide 11, a pair of resting guide 5, a pair of sliding guide 21, a pair of carriage 26 down gone up.Wherein:
Two groups of gear drives comprise a pair of driving gear 12, a pair of idler gear 4 and a pair of fan finger cam 1.Wherein: a pair of driving gear 12 be fixed on the two ends of rotating shaft 32 and lay respectively at pair of side plates 2 and a pair of down resting guide 5 between (be the inboard of side plate 2; The outside of following resting guide 5); When rotating shaft 32 rotations, can drive a pair of driving gear 12 rotations at its two ends; A pair of fan finger cam 1 lays respectively at pair of side plates 2 and the two pairs of resting guides 5, between 11; Respectively have pin-and-hole 38 and the uncovered cam slideway 35 of front end; Fan finger cam 1 is fixing with side plate 2 by bearing pin 3, nut 6 realizations through pin-and-hole 38, and guarantees that fan finger cam 1 can rotate around bearing pin 3; A pair of idler gear 4 is positioned at the centre of driving gear 12 and fan finger cam 1; And with driving gear 12 and 1 engagement of fan finger cam; Pin-and-hole 10 is offered at its center, and idler gear 4 is fixing with side plate 2 by bearing pin 7, nut 8 realizations through pin-and-hole 10, and guarantees that idler gear 4 can be around bearing pin 7 rotations.
A pair of upward resting guide 11 is separately fixed on the pair of side plates 2 through screw and lays respectively at the inboard of fan finger cam 1, and last resting guide 11 has rectangle breach 33, and fan finger cam 1 rotates in rectangle breach 33 spaces.
A pair of down resting guide 5 is separately fixed on the pair of side plates 2 with screw and lays respectively at idler gear 4 and the inboard of driving gear 12 through overlapping 18; Following resting guide 5 has mounting groove 14, sliding tray 13, fulcrum post 30; Mounting groove 14 communicates with sliding tray 13 and is positioned at sliding tray 13 belows, and fulcrum post 30 is positioned at the inboard preceding lower end of resting guide 5 down.The lower surface of the upper surface of following resting guide 5 and last resting guide 11 forms slideway 16, and this slideway 16 is positioned at the inboard of gear drive.
A pair of sliding guide 21 can be installed in a pair of inboard of resting guide 5 down slidingly back and forth; Sliding guide 21 has sliding tray 20, mounting groove 19 and fulcrum post 15; Mounting groove 19 communicates with sliding tray 20 and is positioned at sliding tray 20 belows, and fulcrum post 15 is positioned at the upper end, outer rear flank of sliding guide 21.Sliding guide 21 is slidingly matched through the sliding tray 13 on fulcrum post mounted thereto 15 and the following resting guide 5, and the sliding tray 20 of its lower end is slidingly matched with the fulcrum post 30 on the following resting guide 5, and the top of sliding guide 21 is prolongations of said slideway 16.
The front and back of sliding guide 21 bottoms are equipped with and hold the stopper slot 22 that the elasticity banking pin embeds.Fixed a pair of spring leaf 17 of elasticity banking pin effect on a pair of resting guide 5 down; The one of which end is separately fixed at a pair of preceding lower end, the outside of resting guide 5 down through rivet; The other end is fixed with rivet 29; And springing laterally, rivet 29 springs in the stopper slot 22 on it at former and later two extreme positions of a pair of sliding guide 21, a pair of sliding guide 21 lockings.
Said carriage 26 is fixed on the both sides of breaker body underframe 27, is fixed with roller bearing 24 and following roller bearing 25 on it, and following roller bearing 25 rolls in said slideway 16, and breaker body is seesawed, and last roller bearing 24 cooperates with the cam slideway 35 of fan finger cam 1.
In addition, the front end of sliding guide 21 outside fixedly pulls pin 23.The profile of last resting guide 11 and following resting guide 5 is
shape.
The course of work of the present invention: suppose that at first breaker body and drawer are in separated position, sliding guide 21 gets into drawer fully and is locked in the back extreme position.At this moment, outwards stir spring leaf 17, rivet 29 withdraws from the stopper slot 22 of sliding guide 21 front ends, sliding guide 21 releases; Pulling is pulled pin and 23 is made sliding guide 21 to preceding extreme position, forms the prolongation of slideway 16, and the rivet on the spring leaf 17 29 gets into the stopper slot 22 of sliding guides 21 rear ends; Be placed on breaker body on the sliding guide 21, the following roller bearing 25 on the carriage 26 is tangent with the upper surface of sliding guide 21; Promote breaker body, following roller bearing 25 is rolled in the slideway 16, and following roller bearing 25 is tangent with the upper surface of following resting guide 5, and the last roller bearing 24 on the carriage 26 gets into retaining mouth 34 places of the cam slideway 35 on the fan finger cam 1; At this moment; Outwards stir spring leaf 17 once more, rivet 29 withdraws from the stopper slot 22 of sliding guide 21 rear ends, promotes to pull pin 23 to make sliding guide 21 return the home position; Rivet 29 secondaries on the spring leaf 17 get into the stopper slot 22 of sliding guide 21 front ends, and sliding guide 21 is locked.
At this moment the operator is through operating grip rotating operation screw rod 41; Driving rack-plate 40 moves; Make with the sector gear 31 drive rotating shafts 32 of rack-plate 40 engagements and do clockwise direction rotation (seeing from right to left), a pair of driving gear 12 that drives rotating shaft 32 two ends is more also done the clockwise direction rotation; At this moment, driving gear 12 and idler gear 4 engagements make a pair of idler gear 4 stressed backs do counterclockwise to rotate, and simultaneously, idler gear 4 and 1 engagement of fan finger cam are made clockwise direction after making a pair of fan finger cam 1 stressed and rotated; At this moment the last roller bearing 24 on a pair of carriage 26 is at retaining mouth 34 places of the cam slideway 35 of a pair of fan finger cam 1; Along with further turning clockwise of a pair of fan finger cam 1; Make a pair of roller bearing 24 gone up move inwards and get into gradually in the cam slideway 35 of a pair of fan finger cam 1 after stressed, realize both cooperations; Meanwhile descend roller bearing 25 rolling in the slideway 16 between resting guide 5 and the last resting guide 11 down, drive breaker body and advance inwards together, get into drawer at last fully and arrive connection status, thereby accomplish the process that breaker body gets into drawer.
When breaker body was in connection status, the operator only needed backward rotation operation screw rod 41, a pair of driving gear 12 is done be rotated counterclockwise; And then make a pair of fan finger cam 1 do counterclockwise to rotate; Breaker body outwards moves, when treating that last roller bearing 24 on a pair of carriage 26 retreats to retaining mouth 34 places of cam slideway 35 of a pair of fan finger cam 1, and the locking of untiing sliding guide 21; Pulling is pulled pin and 23 is made a pair of sliding guide 21 to preceding extreme position; Outwards the following roller bearing 25 on pulling breaker body to a pair of carriage 26 is tangent with the upper surface of a pair of sliding guide 21, takes out of breaker body, thereby accomplishes the process that breaker body withdraws from drawer.
In said process; Especially breaker body gets in the process of drawer; There are two resistances; One is the frictional force between part, another resistance also be simultaneously main resistance be exactly the bus 28 of breaker body underframe 27 rear ends inwardly be pressed into be installed on the drawer underframe 37 touch bridge 36 time resistance.Obviously, have only when power suffered on a pair of fan finger cam 1 during greater than above-mentioned resistance, the bus 28 of breaker body underframe 27 rear ends just can be pressed into and touch bridge 36 on the drawer underframe 37, makes breaker body get into drawer fully and arrives link position.After the present invention adopts said structure; When a pair of fan finger cam 1 is gone up roller bearing 24 through cam slideway 35 drives separately are a pair of; Position of suffered thrust is at the postmedian of breaker body on it; Insert the position of center line that touches the suffered counter-force of bridge 36 on the drawer underframe 37 relatively near (or being equal to) with the bus of breaker body underframe 27 rear ends 28; So there is the tilting moment that breaker body rotate around stress point hardly, thereby the operator only needs just can overcome above-mentioned resistance with less power, and the realization breaker body gets into drawer fully to link position.In addition; When breaker body moves; Because the following roller bearing 25 on a pair of carriage 26 rolls in the slideway 16 of resting guide 5 upper surfaces and the formation of last resting guide 11 lower surfaces down; Receive upper and lower dual restriction, make the motion of breaker body in drawer more steady, and the auto-lock function of the front and back extreme position of a pair of sliding guide 21 has improved processing safety greatly.
The present invention makes breaker body stressed more reasonable when getting into or withdrawing from drawer owing to adopted said structure, and operating physical force is littler, and it is more steady to move, and security reliability is higher.
In addition, because the angle that driving gear 12 rotates is less than 180 °, so the employing sector structure, to reduce installing space, if installing space is enough, then driving gear 12 also can adopt Knucle-gear.
Further; Because the driving gear 12 in the gear drive just plays the effect of giving fan finger cam 1 transmission of power of operating mechanism with idler gear 4; Therefore under the situation of space permission; Can save driving gear 12 and idler gear 4, and directly a pair of fan finger cam 1 is fixed on the two ends of rotating shaft 32.
What need statement is; The foregoing description only is used for that the present invention will be described but not limits the invention; Therefore; For a person skilled in the art, under the situation that does not deviate from spirit and scope of the invention, it is carried out various conspicuous changes, all should be within protection scope of the present invention.
Claims (7)
1. withdrawing device; It is characterized in that it comprises: the side plate of placing about a pair of, rotating shaft, two groups of structures are identical and be arranged symmetrically in the inboard gear drive of said pair of side plates, a pair of resting guide, a pair of resting guide, a pair of sliding guide, a pair of carriage down gone up, wherein:
Said rotating shaft is installed on the said pair of side plates;
Said two groups of gear drives comprise a pair of fan finger cam that is driven by said rotating shaft, and this fan finger cam has the uncovered cam slideway of front end;
Said a pair of upward resting guide, a pair of resting guide down are installed in the inboard of pair of side plates respectively, and preceding lower end, the outside of following resting guide is the elasticity banking pin fixedly, forms slideway between last resting guide and the following resting guide;
Said sliding guide is positioned at the inboard of resting guide down; Be slidingly connected with following resting guide front and back; The top of sliding guide is said prolongation of going up the slideway that forms between resting guide and the following resting guide, and the front and back of the bottom of sliding guide are equipped with and hold the stopper slot that the elasticity banking pin embeds;
Said carriage is fixed on the both sides of breaker body underframe, is fixed with roller bearing and following roller bearing on it, rolls in the slideway that following roller bearing forms between resting guide and the following resting guide on said, and last roller bearing cooperates with the cam slideway of fanning finger cam.
2. withdrawing device according to claim 1 is characterized in that:
Said two groups of gear drives comprise a pair of driving gear, a pair of idler gear and a pair of fan finger cam, and a pair of driving gear is fixed on the two ends of said rotating shaft; One idler gear is positioned at the centre of a driving gear and a fan finger cam, and another idler gear is positioned at the centre of another driving gear and another fan finger cam, and idler gear and driving gear and the engagement of fan finger cam.
3. withdrawing device according to claim 1 and 2 is characterized in that:
The said profile that goes up resting guide, following resting guide is
shape.
4. withdrawing device according to claim 1 and 2 is characterized in that:
Said resting guide down has mounting groove, sliding tray, fulcrum post, and mounting groove and sliding tray communicate and be positioned at the sliding tray below, and fulcrum post is positioned at the inboard preceding lower end of resting guide down;
Said sliding guide has sliding tray, mounting groove, fulcrum post, and mounting groove and sliding tray communicate and be positioned at the sliding tray below, and fulcrum post is positioned at upper end, the outer rear flank of sliding guide;
Sliding tray on the fulcrum post of sliding guide and the following resting guide is slidingly matched, and the fulcrum post on the sliding tray of sliding guide and the following resting guide is slidingly matched.
5. withdrawing device according to claim 1 and 2 is characterized in that:
Said elasticity banking pin is a spring leaf, and the one of which end is fixed on down the preceding lower end, the outside of resting guide, and the other end is provided with rivet, and springing laterally.
6. withdrawing device according to claim 1 and 2 is characterized in that:
Fixedly pull pin in the front end outside of said sliding guide.
7. withdrawing device according to claim 2 is characterized in that:
The driving gear of said gear drive is a sector gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810116234 CN101626148B (en) | 2008-07-07 | 2008-07-07 | Draw-out device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810116234 CN101626148B (en) | 2008-07-07 | 2008-07-07 | Draw-out device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101626148A CN101626148A (en) | 2010-01-13 |
| CN101626148B true CN101626148B (en) | 2012-01-11 |
Family
ID=41521873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810116234 Active CN101626148B (en) | 2008-07-07 | 2008-07-07 | Draw-out device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101626148B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7821775B2 (en) * | 2008-04-15 | 2010-10-26 | General Electric Company | Racking mechanism for a circuit breaker |
| CN102339690B (en) * | 2010-07-15 | 2015-06-17 | 北京人民电器厂有限公司 | High-insulativity circuit breaker |
| US8431845B2 (en) * | 2010-09-20 | 2013-04-30 | Eaton Corporation | Electrical switching apparatus and levering assembly therefor |
| CN102208768B (en) * | 2011-03-03 | 2013-11-06 | 深圳市泰永电气科技有限公司 | Driving device for draw-out switching apparatus and draw-out switching apparatus |
| CN102684098B (en) * | 2012-04-27 | 2016-08-17 | 贵州泰永长征技术股份有限公司 | The driving means of the drawout chassis of a kind of pull-out type electric switch and drawout chassis thereof |
| CN104953499A (en) * | 2015-06-08 | 2015-09-30 | 楼碧云 | Electric drawer device |
| CN105118744B (en) * | 2015-09-24 | 2018-01-12 | 厦门宏发开关设备有限公司 | A kind of improved drawer type breaker |
| CN106451175A (en) * | 2016-12-13 | 2017-02-22 | 东莞同济大学研究院 | Drawer holder for switchgear |
| KR102134724B1 (en) * | 2019-01-17 | 2020-07-16 | 엘에스일렉트릭(주) | Safety sutter for air circuir breaker |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2256191Y (en) * | 1996-02-12 | 1997-06-11 | 上海森源电气有限责任公司 | Low voltage drawing-out switching carbinet |
| CN1577684A (en) * | 2003-07-29 | 2005-02-09 | 浙江华一电器厂 | Noval withdrawing device with mechanical interlock for Large current plastic casing type circuit breaker |
| CN2932774Y (en) * | 2006-07-11 | 2007-08-08 | 东莞市开关厂有限公司 | A drawer-type switchgear cabinet |
-
2008
- 2008-07-07 CN CN 200810116234 patent/CN101626148B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2256191Y (en) * | 1996-02-12 | 1997-06-11 | 上海森源电气有限责任公司 | Low voltage drawing-out switching carbinet |
| CN1577684A (en) * | 2003-07-29 | 2005-02-09 | 浙江华一电器厂 | Noval withdrawing device with mechanical interlock for Large current plastic casing type circuit breaker |
| CN2932774Y (en) * | 2006-07-11 | 2007-08-08 | 东莞市开关厂有限公司 | A drawer-type switchgear cabinet |
Non-Patent Citations (1)
| Title |
|---|
| JP平5-244708A 1993.09.21 |
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| CN101626148A (en) | 2010-01-13 |
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