CN207441626U - A kind of spindle mounting structure of circuit breaker operation mechanism - Google Patents
A kind of spindle mounting structure of circuit breaker operation mechanism Download PDFInfo
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- CN207441626U CN207441626U CN201721612751.4U CN201721612751U CN207441626U CN 207441626 U CN207441626 U CN 207441626U CN 201721612751 U CN201721612751 U CN 201721612751U CN 207441626 U CN207441626 U CN 207441626U
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- main shaft
- circuit breaker
- mounting structure
- operation mechanism
- spindle mounting
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Abstract
A kind of spindle mounting structure of circuit breaker operation mechanism, the breaker includes operating mechanism and pedestal, the operating mechanism includes a pair of side plates, main shaft, a pair of side plates is mounted on the outside of pedestal, the main shaft both ends are respectively mounted on the outside of pedestal by an anchor ear, when breaker mechanism drives main axis, the contact system for driving base interior by main shaft acts；There are gaps between the side plate and main shaft.For the main shaft with side plate using the mounting means being isolated, not only positioning is reliable and reasonable, but also crossing for main shaft will not be caused to position, and can greatly improve the transmission efficiency and reliability of mechanism.
Description
Technical field
The utility model belongs to low voltage electrical apparatus technology field, and in particular to a kind of main shaft installation knot of circuit breaker operation mechanism
Structure.
Background technology
With the continuous development of breaker industry, breaker mechanism develops towards high efficiency, the direction of high reliability.And it leads
One of the important component of axis as breaker directly affects the efficiency and reliability of breaker mechanism.Usual breaker mechanism
Main shaft mounting means see Fig. 1, breaker includes operating mechanism and pedestal 1, and the operating mechanism is mounted on the outer of pedestal 1
Side.Operating mechanism includes side plate 2, and side plate 2 is fixed on the outside of pedestal 1, and a main shaft 3 is mounted between side plate 2 and pedestal 1, institute
Side plate anchor ear 23 is installed on the notch that the side plate 2 stated coordinates with main shaft 3, the side plate anchor ear 23 is by two semicircular sides
Plate anchor ear part forms.The side plate anchor ear 23 encircles main shaft 3, it is achieved thereby that restriction of the side plate 2 to main shaft 3.Meanwhile
The outside of the pedestal 1 is also equipped with anchor ear 4, and anchor ear 4 catches on the main shaft 3 so that main shaft 3 is whole during the motion
It will not be away from pedestal 1, so that it is guaranteed that the body excess of stroke.It was found from the mounting means of existing main shaft 3, the main shaft 3 simultaneously by
To the restriction effect of side plate anchor ear 23 and anchor ear 4.This structure is actually crossed and positioned, and countershaft generates certain frictional resistance, simultaneously
Shaft limits during the motion mainly by side plate anchor ear 23, can cause very big impact to side plate, cause side plate deform or
Damage, influences the transmission efficiency of mechanism, combined floodgate reliability can be influenced when serious.
The content of the invention
The purpose of this utility model is to provide for a kind of spindle mounting structure of circuit breaker operation mechanism, main shaft peace
It is reliable and rationally to set position, crossing for main shaft will not be caused to position, the transmission efficiency and reliability of mechanism can be greatly improved.
The purpose of this utility model is such to what is reached, a kind of spindle mounting structure of circuit breaker operation mechanism, described
Breaker include operating mechanism and pedestal, the operating mechanism include a pair of side plates, main shaft, a pair of side plates be mounted on pedestal
Outside, the main shaft both ends respectively by an anchor ear be mounted on pedestal outside, when breaker mechanism drive main axis when,
The contact system for driving base interior by main shaft acts；There are gaps between the side plate and main shaft.
In a specific embodiment of the utility model, the side plate is equipped with to accommodate the notch of main shaft
Portion；The notch section is arc-shaped, and there are gaps between the notch section and main shaft.
In another specific embodiment of the utility model, the notch section and main shaft are concentric, and notch section
Radius is more than the radius of main shaft corresponding position.
In another specific embodiment of the utility model, the main shaft includes an axis body, and the axis body is
Cylinder is fixed at intervals multiple fins thereon, and the quantity of the fin is corresponding with the quantity of moving contact in contact system, institute
At the both ends of length direction, also rounded boss-shaped is held in the narrow end that is rotatably assorted of contracting, described being rotatably assorted to the axis body stated respectively,
The axis body the centre of length direction and corresponding to a pair of side plates position on be respectively equipped with annular groove.
In another specific embodiment of the utility model, the anchor ear has a pair, on anchor ear and corresponds to
It is respectively provided with a containing seat on the position at main axis length direction both ends, the containing seat is an axle cap with holes, the containing seat bag
It includes hollow axle cap ring wall and is arranged on axle cap ring wall away from the axle cap bottom wall on the side of anchor ear body one side, in the axle cap
Axle cap circular hole is offered on bottom wall.
The utility model so that in a specific embodiment, also set between the main shaft and the containing seat of anchor ear
There is axle sleeve.
In the utility model more and in a specific embodiment, there is the axle sleeve axle sleeve to coordinate edge, described
Axle sleeve cooperation edge is the circular ring shape convex edge stretched out from axle sleeve.
In the utility model again and then in a specific embodiment, the gap model between the notch section and main shaft
It encloses for 0.3mm to 2mm.
The utility model again more and in a specific embodiment, the gap model between the notch section and main shaft
It encloses for 0.5mm to 1mm.
The utility model is due to the above structure, having the advantage that：The main shaft is used with side plate to be separated by
From mounting means, not only positioning is reliable and rationally, but also crossing for main shaft will not be caused to position, and can greatly improve the transmission of mechanism
Efficiency and reliability.
Description of the drawings
Fig. 1 is the mounting means schematic diagram of main shaft in existing breaker.
Fig. 2 is the main shaft mounting means schematic diagram of breaker in the utility model.
Fig. 3 is the spindle mounting structure explosive view of breaker in the utility model.
Fig. 4 is the schematic diagram of main shaft in the utility model.
Fig. 5 is the schematic diagram of anchor ear in the utility model.
Fig. 6 is the schematic diagram of the utility model bottom bracket axle.
Fig. 7 is the schematic diagram of the utility model latus inframedium.
Fig. 8 is the main shaft mounting means schematic diagram of breaker in the utility model.
In figure：1. pedestal；2. side plate, 21. notch sections, 22. flange, 221. side plate mounting holes, 23. side plate anchor ears；3. master
Axis, 31. axis bodies, 32. annular grooves, 33. are rotatably assorted end, 34. fins；4. anchor ear, 41. containing seats, 411. axle cap ring walls, 412.
Axle cap bottom wall, 4121. axle cap circular holes, 42. anchor ear mounting portions, 421. anchor ear mounting holes；5. screw；6. axle sleeve, 61. axle sleeves coordinate
Edge.
Specific embodiment
Applicant will below be described in detail specific embodiment of the present utility model with reference to attached drawing, but applicant is to reality
The description for applying example is not the limitation to technical solution, and any changed in the form rather than substance according to the utility model design all should
When being considered as the scope of protection of the utility model.
Such as Fig. 2 to Fig. 8, the utility model is related to a kind of spindle mounting structure of circuit breaker operation mechanism, the open circuits
Device includes operating mechanism and pedestal 1, and the operating mechanism includes a pair of side plates 2, main shaft 3, and a pair of side plates 2 is mounted on pedestal 1
Outside, the both ends of the main shaft 3 are respectively mounted on the outside of pedestal 1 by an anchor ear 4.Operating mechanism drives the main shaft
3 rotate, and are acted by main shaft 3 with movable contact system.
The pedestal 1 is made of insulating materials, be usually DMC or BMC material, the pedestal 1 with equally by insulating
Bottom plate mutually splices made of material, forms the housing for accommodating contact system.And operating mechanism is installed in the outside of pedestal 1.
Described a pair of side plates 2 is arranged at intervals, for the positioning and installation of operating mechanism internal part.Inside operating mechanism
Push and pull system, energy-storage system etc. be not shown, since above-mentioned component is known technology well known to those skilled in the art, no longer in detail
Thin statement.The side plate 2 is process by metallic plate, usually opens up various mounting holes on a metal plate and bending forms.Such as
Fig. 7 is the construction of the utility model latus inframedium 2, and flange 22 is equipped on side plate 2, and the flange 22 is formed through bending, is led to
Often it is right-angle bending, side plate mounting hole 221 is equipped on the flange 22.The flange 22 is for two and respectively positioned at side
The upper and lower ends of 2 the same side of plate.It is additionally provided with to accommodate the notch section 21 of main shaft 3 on side plate 2.The notch section 21 is circle
Arc, after the main shaft 3 and side plate 2 are respectively mounted in place, the notch section 21 covers a part for the main shaft 3,
It but is not contacted with main shaft 3, that is to say, that there are gaps between the notch section 21 and main shaft 3.Preferably, it is described to lack
Oral area 21 and main shaft 3 are concentric, and the radius of notch section 21 is more than the radius of 3 corresponding position of main shaft, so as to be formed therebetween
The gap of one circular ring shape.
Such as Fig. 4, the main shaft 3 is a metal shaft, and main shaft 3 includes an axis body 31, and the axis body 31 is cylinder,
On be fixed with fin 34, the quantity of the fin 34 is corresponding with the quantity of moving contact in contact system.Example is breaking as mentioned
Utensil has three groups of moving contacts, then the quantity of fin 34 is arranged to three pieces with regard to corresponding.The both ends of 31 length direction of axis body
It is additionally provided with the end 33 that is rotatably assorted of narrow contracting, the 33 rounded projection shapes of end that are rotatably assorted, 31 length direction of axis body
Centre and corresponding to annular groove 32 is respectively equipped on the position of a pair of side plates 2, the annular groove 32 is the recess of circular ring shape.
Such as Fig. 5, the anchor ear 4 is a plate, and generally use sheet metal is process or is added using metal casting
Work forms.The anchor ear 4 is a pair, and each anchor ear 4 has anchor ear mounting portion 42, opened up on the anchor ear mounting portion 42
There is anchor ear mounting hole 421.When the anchor ear 4 is process by metallic plate, the anchor ear mounting portion 42 for a bending and
Into flange.On the anchor ear 4 and corresponding to 3 length direction of main shaft both ends position on be respectively provided with containing seat 41, institute
The containing seat 41 stated is an axle cap with holes, i.e. the containing seat 41 includes hollow axle cap ring wall 411 and is arranged on
Axle cap ring wall 411 is opened up away from the axle cap bottom wall 412 on 4 body one side side of anchor ear on the axle cap bottom wall 412
There is axle cap circular hole 4121.
Such as Fig. 3, Fig. 6, the rotation of axle sleeve 6, i.e. main shaft 3 is additionally provided between the containing seat 41 of the main shaft 3 and anchor ear 4
It being installed to again in containing seat 41 on abutting end 33 being arranged with after axle sleeve 6, the axle sleeve 6 is circular ring shape, and with axle sleeve
Along 61, the axle sleeve coordinates the circular ring shape convex edge to be stretched out from axle sleeve 6 along 61 for cooperation.It is described after installation is complete for axle sleeve 6
Axle sleeve cooperation be insinuated into along 61 inside axle cap circular hole 4121, and the other parts of axle sleeve 6 are by the edge institute of axle cap circular hole 4121
Stop, so as to inside containing seat 41.Meanwhile the end 33 that is rotatably assorted of the main shaft 3 is insinuated into the inside of axle sleeve 6, and
Axis body 31 is then more than the internal diameter of axle sleeve 6 due to its radius, can not be insinuated into the inside of axle sleeve 6.Anchor ear 4 is finally passed through into screw 5
Outside fixed to pedestal 1.
In focusing on for the technical solution of the utility model, the main shaft 3 only realizes it by the anchor ear 4 at both ends
With the positioning relation between pedestal 1, and due to having opened up notch section 21 on side plate 2, and exist between notch section 21 and main shaft 3
There is a gap, i.e., be separated by settings between the notch section 21 and main shaft 3, so that side plate 2 is not contacted with main shaft 3, i.e., main shaft 3 is no longer
With 2 phase /V of side plate.The technical program avoids the multiple positioning to main shaft 3.So that in normal operating conditions, main shaft 3 turns
It is dynamic more flexible, extra impact force is not subject to, improves its service life, can finally greatly improve the transmission efficiency of mechanism and reliable
Property.
Further technical solution：In order to meet when circuit breaker operation mechanism is operating normally, side plate 2 does not connect with main shaft 3
It touches, and when breaker bears short circuit current flow, side plate 2 can realize main shaft 3 supporting role of auxiliary.To above-mentioned notch section 21 with
Interstice coverage between main shaft 3 has carried out further optimization, and prioritization scheme is：Between the notch section 21 and main shaft 3
Interstice coverage is 0.3mm to 2mm.The scheme more optimized is：Interstice coverage between the notch section 21 and main shaft 3 is
0.5mm to 1mm.
The installation process of main shaft 3 is：First main shaft 3 is installed to by anchor ear 4 on the lateral wall of pedestal 1, by main shaft 3 and base
Contact system inside seat 1 is connected, then operating mechanism body is fixed on pedestal 1, specifically, by the way that side plate 2 is installed
Onto the lateral wall of pedestal 1, the installation of display operation mechanism body finally completes operating mechanism inner link component and main shaft 3
Connection installation.
Claims (9)
1. a kind of spindle mounting structure of circuit breaker operation mechanism, the breaker includes operating mechanism and pedestal (1), described
Operating mechanism include a pair of side plates (2), main shaft (3), a pair of side plates (2) be mounted on pedestal (1) outside, the main shaft
(3) both ends are respectively mounted on the outside of pedestal (1) by an anchor ear (4), when breaker mechanism drives main shaft (3) to rotate, by leading
Axis (3) is with the internal contact system action of moving base (1)；It is characterized in that：Exist between the side plate (2) and main shaft (3)
Gap.
A kind of 2. spindle mounting structure of circuit breaker operation mechanism according to claim 1, it is characterised in that the side
Plate (2) is equipped with to accommodate the notch section (21) of main shaft (3)；The notch section (21) is arc-shaped, the notch section (21)
There are gaps between main shaft (3).
3. the spindle mounting structure of a kind of circuit breaker operation mechanism according to claim 2, it is characterised in that described lacks
Oral area (21) and main shaft (3) are concentric, and the radius of notch section (21) is more than the radius of main shaft (3) corresponding position.
A kind of 4. spindle mounting structure of circuit breaker operation mechanism according to claim 1, it is characterised in that the master
Axis (3) includes an axis body (31), and the axis body (31) is cylinder, is fixed at intervals multiple fins (34) thereon, described
The quantity of fin (34) is corresponding with the quantity of moving contact in contact system, and the axis body (31) also divides at the both ends of length direction
The not narrow end (33) that is rotatably assorted of contracting, described end (33) the rounded boss-shaped that is rotatably assorted, the axis body (31) is in length
The centre in direction and corresponding to a pair of side plates (2) position on be respectively equipped with annular groove (32).
5. the spindle mounting structure of a kind of circuit breaker operation mechanism according to claim 1, it is characterised in that described embraces
Hoop (4) have a pair, on anchor ear (4) and corresponding to main shaft (3) length direction both ends position on be respectively provided with a containing seat (41),
The containing seat (41) is an axle cap with holes, which includes hollow axle cap ring wall (411) and be arranged on axis
Cap ring wall (411) is opened away from the axle cap bottom wall (412) on anchor ear (4) body one side side on the axle cap bottom wall (412)
Equipped with axle cap circular hole (4121).
A kind of 6. spindle mounting structure of circuit breaker operation mechanism according to claim 5, it is characterised in that the master
Axle sleeve (6) is additionally provided between axis (3) and the containing seat (41) of anchor ear (4).
A kind of 7. spindle mounting structure of circuit breaker operation mechanism according to claim 6, it is characterised in that the axis
(6) are covered with axle sleeve cooperation along (61), and the axle sleeve coordinates the circular ring shape convex edge to be stretched out from axle sleeve (6) along (61).
8. a kind of spindle mounting structure of circuit breaker operation mechanism according to any claim in claim 2 to 3, feature
It is：Interstice coverage between the notch section (21) and main shaft (3) is 0.3mm to 2mm.
9. a kind of spindle mounting structure of circuit breaker operation mechanism according to claim 8, it is characterised in that：Described lacks
Interstice coverage between oral area (21) and main shaft (3) is 0.5mm to 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721612751.4U CN207441626U (en) | 2017-11-28 | 2017-11-28 | A kind of spindle mounting structure of circuit breaker operation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721612751.4U CN207441626U (en) | 2017-11-28 | 2017-11-28 | A kind of spindle mounting structure of circuit breaker operation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207441626U true CN207441626U (en) | 2018-06-01 |
Family
ID=62284840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721612751.4U Active CN207441626U (en) | 2017-11-28 | 2017-11-28 | A kind of spindle mounting structure of circuit breaker operation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207441626U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110828247A (en) * | 2019-11-18 | 2020-02-21 | 上海电气集团股份有限公司 | Universal low-voltage circuit breaker with separated main shaft and operating mechanism |
| CN113808869A (en) * | 2021-09-15 | 2021-12-17 | 江苏大全凯帆开关股份有限公司 | Modular installation method |
-
2017
- 2017-11-28 CN CN201721612751.4U patent/CN207441626U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110828247A (en) * | 2019-11-18 | 2020-02-21 | 上海电气集团股份有限公司 | Universal low-voltage circuit breaker with separated main shaft and operating mechanism |
| CN110828247B (en) * | 2019-11-18 | 2022-03-01 | 上海电气集团股份有限公司 | Universal low-voltage circuit breaker with separated main shaft and operating mechanism |
| CN113808869A (en) * | 2021-09-15 | 2021-12-17 | 江苏大全凯帆开关股份有限公司 | Modular installation method |
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