CN202363387U - Tripping traction device for circuit breaker - Google Patents
Tripping traction device for circuit breaker Download PDFInfo
- Publication number
- CN202363387U CN202363387U CN2011205257926U CN201120525792U CN202363387U CN 202363387 U CN202363387 U CN 202363387U CN 2011205257926 U CN2011205257926 U CN 2011205257926U CN 201120525792 U CN201120525792 U CN 201120525792U CN 202363387 U CN202363387 U CN 202363387U
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- electromagnet
- connector
- bearing pin
- cantilever
- circuit breaker
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Abstract
The utility model relates to a tripping traction device for a circuit breaker and belongs to the technical field of low-voltage electrical apparatuses. The circuit breaker comprises a first electromagnet, a second electromagnet and an operating mechanism; the traction device comprises a bracket, a traction rod, a first cantilever, a second cantilever, a third cantilever, a first pin shaft, a second pin shaft, a first connecting member, a second connecting member and a third connecting member; the third connecting member is connected with the operating mechanism; the first electromagnet and the second electromagnet are respectively arranged at two sides of the traction rod; one end of the first connecting member is connected with the first electromagnet, a first strip-shaped groove is formed at the other end of the first electromagnet, and the first pin shaft is arranged in the first strip-shaped groove to form a sliding fit manner; and one end of the second connecting member is connected with the second electromagnet, a second strip-shaped groove is formed at the other end of the second electromagnet, and the second pin shaft is arranged in the second strip-shaped groove to form another sliding fit manner. The tripping traction device for the circuit breaker has the advantages that actuating forces of the electromagnets can be effectively transmitted to the operating mechanism, and an adverse effect can not be caused to the other electromagnet when one electromagnet transmits the force in the presence of the two electromagnets.
Description
Technical field
The utility model belongs to the low voltage electrical apparatus technology field, is specifically related to a kind of circuit breaker and uses the dropout draw-gear
Background technology
circuit breaker is to be used for the system of supply line, the device that the protection electric equipment is not damaged when situation such as overload, short circuit and under-voltage protection occurring.When situation such as overload, short circuit occurring, the overcurrent protection of circuit breaker is through electromagnet (like beating type electromagnet, solenoid electromagnet etc.) outputting power and activates operating mechanism moving contact and fixed contact are separated, the realization breaker open operation.In circuit breaker, usually a plurality of electromagnet can be installed; A plurality of electromagnet can activate operating mechanism; Therefore need to coordinate the action between a plurality of electromagnet, so that other part of being failure to actuate is not produced unpredictable adverse effect during some solenoid actuated operating mechanisms.In low-pressure plastic shell circuit breaker, use draw bar to handle this problem usually at present.Like Chinese invention patent application publication number CN102064054A, disclosed name is called " thermoelectric magnetic-type release and tripping mechanism thereof ", and its each electromagnet can hit draw bar separately rotates draw bar, and draw bar makes operating mechanism release action then.And under some application scenario, in omnipotent breaker, (generally rated current is 1600A～7400A) because the circuit breaker loaded current is bigger; In order to guarantee enough insulation property and breaking capacity; It is bigger that the circuit breaker volume is done, and distance is distant between phase and phase, and each each electromagnet of going up mutually is at a distance of distant; And receive structural limitations can't arrange the draw bar that extends to each phase electromagnet, the electromagnet of each phase can't directly hit draw bar.Therefore under circuit breaker spaced apart situation far away, how to realize the same operating structure of each phase solenoid actuated and each other co-ordination be that the insider is endeavouring the problem that solves always.For this reason, the applicant has passed through time consuming exploration and trial, has found the good plan of dealing with problems finally, and the technical scheme that will introduce below produces under this background
Summary of the invention
The task of
the utility model is to provide a kind of circuit breaker to use the dropout draw-gear; It can realize the actuation force of electromagnet effectively is transferred to operating mechanism, and in the time realizing when one of them transmission power under the situation that two electromagnet exist, can not have a negative impact to another one.
The task of
the utility model is accomplished like this, and a kind of circuit breaker is used the dropout draw-gear, and described circuit breaker comprises first electromagnet, second electromagnet and operating mechanism; Described draw-gear comprise support, rotationally rack-mount draw bar, be fixedly installed on first cantilever and second cantilever and the 3rd cantilever on the draw bar, be fixed on first bearing pin on first cantilever, be fixed on second bearing pin on second cantilever, first connector that is connected with first bearing pin, second connector that is connected with second bearing pin, the 3rd connector that is connected with the 3rd cantilever; Described the 3rd connector is connected with operating mechanism so that pneumatic operating mechanism; Described first electromagnet and second electromagnet are separately positioned on the both sides of draw bar; One end of said first connector is connected with first electromagnet, the other end of first connector is formed with first bar-shaped trough, and described first bearing pin is arranged on to constitute in first bar-shaped trough and is slidingly matched; One end of said second connector is connected with second electromagnet, the other end of second connector is formed with second bar-shaped trough, and described second bearing pin is arranged on to constitute in second bar-shaped trough and is slidingly matched.
are provided with the 3rd bearing pin on described the 3rd cantilever in a specific embodiment of the utility model, described the 3rd connector is connected on the 3rd bearing pin.
are in another specific embodiment of the utility model; Described first cantilever and second cantilever are that the center is symmetricly set on the draw bar both sides with the draw bar, and described first bearing pin and second bearing pin are that the center is symmetricly set on the draw bar both sides with the draw bar.
in another specific embodiment of the utility model, described first cantilever and second cantilever are unitary members, and described first bearing pin and second bearing pin are separately positioned on the two ends of described unitary member.
also have in the specific embodiment the utility model; Described first connector and second connector adopt steel wire to process, and described first connector is using the mode of turning back to constitute first bar-shaped trough and second bar-shaped trough with second connector respectively with that end that described first bearing pin is connected with second bearing pin.
the utility model so that specific embodiment in, described circuit breaker also comprises shunt release, described shunt release is fixed on the support and cooperates with said draw bar.
the utility model more and in specific embodiment, described draw bar is provided with jut, this jut is used for matching with described shunt release.
the utility model is because after adopting said structure, any electromagnet action pulling draw bar can make the operating mechanism release of circuit breaker in circuit breaker, and the side that do not work this moment can not produce resistance to the side of work.Two electromagnet also can move simultaneously and spur the operating mechanism release that draw bar makes circuit breaker; And this device also can install shunt release additional and realize electronic separating brake; When shunt release is worked; Other side that do not work can not produce resistance to the side of work too, and both can combine effectively.
Description of drawings
Fig. 1 is an example structure sketch map of the utility model.
Fig. 2 is another example structure sketch map of the utility model.
Fig. 3 is the three-dimensional structure diagram of the described draw bar 1 of the utility model.
Fig. 4 is the structural representation of described first connector 31 of the utility model.
Fig. 5 is the structural representation of described second connector 41 of the utility model.
Among
figure: 1. draw bar, 11. juts; 2. support; 3. first cantilever, 31. first connectors, 311. first bar-shaped troughs, 32. first bearing pins, 4. second cantilever, 41. second connectors, 411. second bar-shaped troughs, 42. second bearing pins; 5. the 3rd cantilever, 51. the 3rd connectors, 52. the 3rd bearing pins; 61. first electromagnet, 62. second electromagnet; 7. operating mechanism; 8. shunt release.
Embodiment
can be expressly understood the technical spirit and the beneficial effect of the utility model more for the auditor that the makes Patent Office especially public; The applicant general elaborates with the mode of embodiment below; But the description to embodiment all is not the restriction to the utility model technical scheme, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be regarded as the technical scheme category of the utility model.
see also Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5; A kind of circuit breaker is used the dropout draw-gear; Described circuit breaker comprises that (version of electromagnet does not receive any restriction for first electromagnet 61, second electromagnet 62 and operating mechanism 7; Can be beating type electromagnet, operating mechanism be the mechanism that a driving force of accepting the dropout draw-gear makes the contact of breaker separating brake, and electromagnet and operating mechanism all belong to known technology); Described draw-gear comprise support 2, rotationally be installed in draw bar 1 on the support 2, be fixedly installed on first cantilever 3 and second cantilever 4 and the 3rd cantilever 5 on the draw bar 1, be fixed on first bearing pin 32 on first cantilever 3, be fixed on second bearing pin 42 on second cantilever 4, first connector 31 that is connected with first bearing pin 32, second connector 41 that is connected with second bearing pin 42, the 3rd connector 51 that is connected with the 3rd cantilever 5.In the present embodiment; Described first cantilever 3 and second cantilever 4 are that the center is symmetricly set on draw bar 1 both sides with draw bar 1; Described first bearing pin 32 and second bearing pin 42 are that the center is symmetricly set on draw bar 1 both sides with draw bar 1; Described first electromagnet 61 and second electromagnet 62 also are separately positioned on the both sides of draw bar 1; Described first cantilever 3 and second cantilever 4 can be unitary members; First bearing pin 32 and second bearing pin 42 are separately positioned on the two ends of described unitary member, and described first connector 31 matches with first electromagnet 61 and second connector 41 matches (as shown in Figure 1) with second electromagnet 62, and described the 3rd cantilever 5 is provided with the 3rd bearing pin 52; Described the 3rd connector 51 is connected on the 3rd bearing pin 52, and described the 3rd connector 51 is connected with operating mechanism 7 so that pneumatic operating mechanism 7; Described circuit breaker also comprises shunt release 8, and described shunt release 8 is fixed on the support 2 and cooperates with said draw bar 1.Described draw bar 1 is provided with jut 11, is used for matching with described shunt release 8.What first connector 31 and second connector, 41 materials preferably adopted in the present embodiment is steel wire, and described first connector 31 is using the mode of turning back to constitute first bar-shaped trough 311 and second bar-shaped trough 411 with second connector 41 respectively with that end that described first bearing pin 32 is connected with second bearing pin 42.Certainly, first connector 31 and second connector 41 also can adopt rod member to constitute, and that end that is connected with bearing pin at rod member sets out bar-shaped trough.
are certain; In this enforcement, adopt the mode of electromagnet through connector pulling draw bar to be because that the circuit breaker volume is done is bigger; Distance is also relatively far away between phase and phase; Cause two electromagnet at a distance of distant, and receive structural limitations can't arrange the draw bar that extends to two electromagnet, so the electromagnet of each phase can't directly hit draw bar.If adopt stock to promote draw bar, long span leaves oversize unstable under the pressurized situation, easy deformation, and promoting draw bar in the time of can causing the electromagnet action can't reliably accomplish.When mounted; First connector, 31 1 ends are slidingly matched through constituting between first bar-shaped trough 311 and described first bearing pin 32, the other end of first connector 31 then with first electromagnet 61 on corresponding action component (like armature of beating type electromagnet etc.) achieve a fixed connection; One end of second connector 41 is slidingly matched through constituting between second bar-shaped trough 411 and described second bearing pin 42, the other end of second connector 41 then with another second electromagnet 62 on corresponding action component achieve a fixed connection; One end of the 3rd connector 51 and the 3rd bearing pin 52 achieve a fixed connection, and the other end of the 3rd connector 51 is connected with operating mechanism 7, and it is moved.
Fig. 1, Fig. 3, Fig. 4 and Fig. 5 please be continued to consult in
; The concrete course of action of narration the utility model: when 61 actions of first electromagnet; Active force acts on first connector 31 so, and first connector, 31 pulling draw bars 1 are done counterclockwise to rotate, and drive the 3rd connector 51 and move downward; Thereby making the 3rd connector 51 drive operating mechanism 7 threads off; Have only first connector, 31 pulling draw bars 1 this moment, and second connector 41 does not spur 42 mobile one section idle strokes in second bar-shaped trough 41 of draw bar 1, the second bearing pin; Therefore operating mechanism 7 dropout actions neither can receive the obstruction of idle second electromagnet 62 and influence, and can second electromagnet 62 not exerted an influence again; When 62 actions of second electromagnet, process and above-mentioned similar repeats no more.
are above-mentioned moves when first electromagnet 61 and second electromagnet 62 simultaneously; First connector 31 and second connector 41 receive pulling force simultaneously so; Spur draw bar 1 simultaneously; Make draw bar 1 do counterclockwise to rotate, drive the 3rd connector 51 and move downward, thread off thereby make the 3rd connector 51 drive operating mechanism 7.
see also Fig. 2, Fig. 3, Fig. 4 and Fig. 5; After shunt release 8 energisings; Strike bar on the shunt release 8 promotes the jut 11 on the draw bar 1; Make draw bar 1 do rotation counterclockwise, drive the 3rd connector 51 and move downward, thread off thereby make the 3rd connector 51 drive operating mechanism 7; And this moment a pair of first bearing pin 32 on the draw bar 1 with second bearing pin 42 mobile one section idle stroke in first bar-shaped trough 311 of first connector 31 and second connector 41 and second bar-shaped trough 411 respectively, so more than can not exert an influence to first electromagnet 61 and second electromagnet 62.
In sum, the technical scheme that the utility model provided has overcome the shortcoming in the prior art, has reached goal of the invention, has embodied the described technique effect of applicant
Claims (7)
1.
a kind of circuit breaker is used the dropout draw-gear, and described circuit breaker comprises first electromagnet (61), second electromagnet (62) and operating mechanism (7); It is characterized in that: described draw-gear comprises support (2); Be installed in the draw bar (1) on the support (2) rotationally; Be fixedly installed on first cantilever (3) and second cantilever (4) and the 3rd cantilever (5) on the draw bar (1); Be fixed on first bearing pin (32) on first cantilever (3); Be fixed on second bearing pin (42) on second cantilever (4); First connector (31) that is connected with first bearing pin (32); Second connector (41) that is connected with second bearing pin (42); The 3rd connector (51) that is connected with the 3rd cantilever (5); Described the 3rd connector (51) is connected with operating mechanism (7) so that pneumatic operating mechanism (7); Described first electromagnet (61) and second electromagnet (62) are separately positioned on the both sides of draw bar (1); One end of said first connector (31) is connected with first electromagnet (61), the other end of first connector (31) is formed with first bar-shaped trough (311), and described first bearing pin (32) is arranged on to constitute in first bar-shaped trough (311) and is slidingly matched; One end of said second connector (41) is connected with second electromagnet (62), the other end of second connector (41) is formed with second bar-shaped trough (411), and described second bearing pin (42) is arranged on to constitute in second bar-shaped trough (411) and is slidingly matched.
2.
circuit breaker according to claim 1 is used the dropout draw-gear, it is characterized in that the 3rd bearing pin (52) is set on described the 3rd cantilever (5), and described the 3rd connector (51) is connected on the 3rd bearing pin (52).
3.
circuit breaker according to claim 1 is used the dropout draw-gear; It is characterized in that described first cantilever (3) and second cantilever (4) are that the center is symmetricly set on draw bar (1) both sides with draw bar (1), described first bearing pin (32) and second bearing pin (42) are that the center is symmetricly set on draw bar (1) both sides with draw bar (1).
4.
circuit breaker according to claim 3 is used the dropout draw-gear; It is characterized in that first cantilever (3) and second cantilever (4) are unitary members, described first bearing pin (32) and second bearing pin (42) are separately positioned on the two ends of described unitary member.
5.
circuit breaker according to claim 1 is used the dropout draw-gear; Described first connector (31) and second connector (41) adopt steel wire to process, and described first connector (31) is using the mode of turning back to constitute first bar-shaped trough (311) and second bar-shaped trough (411) with second connector (41) respectively with that end that described first bearing pin (32) is connected with second bearing pin (42).
6.
circuit breaker according to claim 1 is used the dropout draw-gear; It is characterized in that described circuit breaker also comprises shunt release (8); Described shunt release (8) is fixed on the support (2), is used for cooperating with said draw bar (1).
7.
Circuit breaker according to claim 6 is used the dropout draw-gear, it is characterized in that described draw bar (1) is provided with jut (11), and this jut (11) is used for matching with described shunt release (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205257926U CN202363387U (en) | 2011-12-15 | 2011-12-15 | Tripping traction device for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205257926U CN202363387U (en) | 2011-12-15 | 2011-12-15 | Tripping traction device for circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202363387U true CN202363387U (en) | 2012-08-01 |
Family
ID=46574551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205257926U Withdrawn - After Issue CN202363387U (en) | 2011-12-15 | 2011-12-15 | Tripping traction device for circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202363387U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568961A (en) * | 2011-12-15 | 2012-07-11 | 常熟开关制造有限公司(原常熟开关厂） | Tripping traction device for circuit breaker |
-
2011
- 2011-12-15 CN CN2011205257926U patent/CN202363387U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568961A (en) * | 2011-12-15 | 2012-07-11 | 常熟开关制造有限公司(原常熟开关厂） | Tripping traction device for circuit breaker |
| CN102568961B (en) * | 2011-12-15 | 2014-02-26 | 常熟开关制造有限公司(原常熟开关厂） | Tripping traction device for circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120801 Effective date of abandoning: 20140226 |
|
| RGAV | Abandon patent right to avoid regrant |