CN204927208U - Moulded case circuit breaker operating device installation improvement structure - Google Patents
Moulded case circuit breaker operating device installation improvement structure Download PDFInfo
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- CN204927208U CN204927208U CN201520592729.2U CN201520592729U CN204927208U CN 204927208 U CN204927208 U CN 204927208U CN 201520592729 U CN201520592729 U CN 201520592729U CN 204927208 U CN204927208 U CN 204927208U
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Abstract
Moulded case circuit breaker operating device installation improvement structure, it includes mechanism's curb plate (1), its characterized in that: be equipped with breach groove (101) on mechanism's curb plate (1), insert connecting piece (2) of cross -section for the I -shaped cell type in breach groove (101), connecting piece (2) lower extreme is fixed on mechanism's curb plate (1) with round pin axle (3), be equipped with screw hole (201) on the up end, base (5) and last casing (6) lock is passed in proper order in screw hole (201) in screw (4), the arc groove of U -shaped lever (7) clamps the round shaft part at step axle (8) head, mechanism's pivot (9) axle head portion is equipped with polygon boss (901), polygon boss (901) outer be equipped with corresponding slide bearing (902), slide bearing (902) are equipped with oil groove (902b02a) including inner circle (902a) and outer lane (902b) on the outer disc (902a02) of inner circle, and slide bearing (902) outer fringe face dress is in the polygon hole (10a) that base (10) and last casing (11) are formed. The utility model discloses improve the current mounting means that drops easily, improve the stability and the reliability of installation. Reduce slide bearing's coefficient of friction simultaneously, prolonged the life of product.
Description
Technical field
The invention belongs to low voltage equipment technical field, specifically just relate to a kind of moulded case circuit breaker operation mechanism and structure-improved is installed, enhance the stability that moulded case circuit breaker operation mechanism is installed.
Background technology
Circuit breaker is divided into primary cut-out and low-voltage circuit breaker by its scope of application.Low-voltage circuit breaker is also known as automatic switch, and it is a kind of existing hand switch effect, automatically can carry out again decompression, under-voltage, overload and the electrical equipment of short-circuit protection.It can be used to distribute electric energy, infrequently start asynchronous motor, protection is carried out to power circuit and motor etc., can automatic shutdown circuit when serious overload or short circuit and the fault such as under-voltage occur for they, circuit breaker is generally made up of contact system, arc quenching system, operating mechanism, release, shell etc., and circuit breaker divides by structure universal and plastic shell; The parts mounting means of the operating mechanism of breaker of plastic casing traditional mostly at present is straight forming tapping on operating mechanism side plate, screw is connected on Shell of circuit breaker, but at the shaping direct tapping constantly of side plate, processing technology is complicated, and thread quality is difficult to control.Secondly operating mechanism U-shaped lever is arranged in the hole flanging feature of side plate, hole flanging feature machining difficulty, and difficult quality controls, and U-shaped lever exists the risk that comes off; The sliding bearing frictional resistance of fixed support mechanism rotating shaft is simultaneously large, limits the flexible rotating of rotating shaft, reduces part useful life and reliability.In a word, easily there is obscission in existing moulded case circuit breaker operation mechanism mounting means less stable.
Utility model content
The purpose of this utility model is exactly for existing moulded case circuit breaker operation mechanism mounting means poor stability, easy generation obscission, there is provided a kind of moulded case circuit breaker operation mechanism that structure-improved is installed, the caducous mounting means of existing appearance is improved, improves the stability and reliability of installing.
Technical scheme
In order to realize above-mentioned technical purpose, the moulded case circuit breaker operation mechanism of the present invention's design installs structure-improved, it comprises mechanism's side plate, it is characterized in that: described mechanism side plate is provided with gap slot, the connector that cross section is I-shaped grooved is inserted in gap slot, connector lower end bearing pin one is fixed on mechanism's side plate, connector upper surface is provided with screwed hole, screw is locked in screwed hole through pedestal and upper shell successively, position corresponding with operating mechanism U-shaped lever rotation fulcrum on described mechanism side plate is provided with supported hole, supported hole is built with Step Shaft, the arc groove of U-shaped lever is installed on the circular shaft section of Step Shaft head, mechanism's rotating shaft shaft end is provided with polygon boss, corresponding sliding bearing is housed outside described polygon boss, sliding bearing comprises interior and outer ring, inner ring endoporus is the polygonal hole coordinated with polygon boss, inner ring periphery coordinates with circular hole in outer ring, outer ring outer edge surface is polygon, inner ring periphery is provided with oil groove, sliding bearing outer edge surface is contained in the polygonal hole that pedestal and upper shell form.
Further, insert gap slot cell wall in the I-shaped notch of described connector both sides, connector front surface and rear surface are provided with through hole, and hole is built with bearing pin one, and bearing pin one is successively through connector front surface, mechanism's side plate and connector rear surface.
Further, described bearing pin one is fixed by revolving riveting mode.
Further, described Step Shaft is fixed by revolving riveting mode, and the circular shaft section that the arc groove of U-shaped lever is installed on Step Shaft head is propped up by Step Shaft head.
Beneficial effect
The moulded case circuit breaker operation mechanism of the utility model design installs structure-improved, improves the caducous mounting means of existing appearance, improves the stability and reliability of installing.Reduce the coefficient of friction of sliding bearing simultaneously, extend the useful life of product.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model example structure schematic diagram.
Accompanying drawing 2 is connector scheme of installations in mechanism part in the utility model embodiment.
Accompanying drawing 3 is that in the utility model embodiment, mechanism part and pedestal and upper shell are connected and fixed schematic diagram.
Accompanying drawing 4 is structure intentions of connector in the utility model embodiment.
Accompanying drawing 5 is U-shaped lever scheme of installations in mechanism in the utility model embodiment.
Accompanying drawing 6 is Step Shaft structural representations in the utility model embodiment.
Accompanying drawing 7 is mechanism side plate structure schematic diagrames in the utility model embodiment.
Accompanying drawing 8 is sliding bearing scheme of installations in rotating shaft in the utility model embodiment.
Accompanying drawing 9 is the scheme of installation of the utility model embodiment shaft between pedestal and upper shell.
Accompanying drawing 10 is sliding bearing inner ring structure schematic diagram in the utility model embodiment.
Accompanying drawing 11 is sliding bearing outer ring structure schematic diagram in the utility model embodiment.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
Embodiment
As shown in accompanying drawing 1 ~ 4, moulded case circuit breaker operation mechanism installs structure-improved, it comprises mechanism's side plate 1, described mechanism side plate 1 is provided with gap slot 101, the connector 2 that cross section is I-shaped grooved is inserted in gap slot 101, connector 2 lower end bearing pin 1 is fixed on mechanism's side plate 1, connector 2 upper surface is provided with screwed hole 201, screw 4 is locked in screwed hole 201 through pedestal 5 and upper shell 6 successively, particularly, gap slot 101 cell wall is inserted in the I-shaped notch of described connector 2 both sides, connector 2 front surface and rear surface are provided with through hole 202, hole is built with bearing pin 1, bearing pin 1 is successively through connector 2 front surface, mechanism's side plate 1 and connector 2 rear surface.Bearing pin 1 is fixed by revolving riveting mode.Connector 2 is processed with screwed hole 201 in advance, and mechanism part and upper shell 6 and pedestal 5 link together by standard component screw easy to use.Pedestal 5 and upper shell 6 have the hole group corresponding with mechanism's side plate 1 screwed hole 301 position.By screw through hole on circular hole on pedestal 5 and upper shell 6, screw in mechanism's side plate 1 connector 2 upper screwed hole, tighten.Mechanism's side plate 1 is just tightly connected and fixed with pedestal 5 and upper shell 6.
As shown in accompanying drawing 5 ~ 8, position corresponding with operating mechanism U-shaped lever 7 rotating fulcrum on described mechanism side plate 1 is provided with supported hole 102, supported hole 102 is built with Step Shaft 8, described Step Shaft 8 is fixed by revolving riveting mode, and the circular shaft section that the arc groove of U-shaped lever 7 is installed on Step Shaft 8 head is propped up by Step Shaft 8 head.U-shaped lever 7 is installed on Step Shaft 8.Avoid the accessory size brought because of existing flanging process wayward, Step Shaft 8 flange can effectively avoid U-shaped lever 7 because inwardly shrinking the risk that comes off caused.As shown in accompanying drawing 9 ~ 11, mechanism's rotating shaft 9 shaft end is provided with polygon boss 901, corresponding sliding bearing 902 is housed outside described polygon boss 901, sliding bearing 902 comprises inner ring 902a and outer ring 902b, inner ring endoporus 902a01 is the polygonal hole coordinated with polygon boss 901, inner ring periphery 902a02 coordinates with circular hole 902b01 in outer ring, outer ring outer edge surface 902b02 is polygon, inner ring periphery 902a02 is provided with oil groove 902b02a, and sliding bearing 902 outer edge surface is contained in the polygon 10a that pedestal 10 and upper shell 11 form.The Internal and external cycle of sliding bearing 902 can rotate mutually, and inner ring periphery 902a02 is provided with oil groove 902b02a, can hold lubricating grease, reduces friction, improves velocity of rotation, improves part life.
Structure, ratio, size etc. that the present embodiment institute accompanying drawings illustrates, content all only in order to coordinate specification to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the present invention can produce and the object that can reach, still all should drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, quote in this specification as " on ", D score, "left", "right", " centre ", " clockwise ", " counterclockwise " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
Claims (4)
1. moulded case circuit breaker operation mechanism installs structure-improved, it comprises mechanism's side plate (1), it is characterized in that: described mechanism side plate (1) is provided with gap slot (101), the connector (2) that cross section is I-shaped grooved is inserted in gap slot (101), connector (2) lower end bearing pin one (3) is fixed on mechanism's side plate (1), connector (2) upper surface is provided with screwed hole (201), screw (4) is locked in screwed hole (201) through pedestal (5) and upper shell (6) successively, the upper position corresponding with operating mechanism U-shaped lever (7) rotating fulcrum of described mechanism side plate (1) is provided with supported hole (102), supported hole (102) is built with Step Shaft (8), the arc groove of U-shaped lever (7) is installed on the circular shaft section of Step Shaft (8) head, mechanism's rotating shaft (9) shaft end is provided with polygon boss (901), corresponding sliding bearing (902) is housed outside described polygon boss (901), sliding bearing (902) comprises inner ring (902a) and outer ring (902b), inner ring endoporus (902a01) is the polygonal hole coordinated with polygon boss (901), inner ring periphery (902a02) coordinates with circular hole in outer ring (902b01), outer ring outer edge surface (902b02) is polygon, inner ring periphery (902a02) is provided with oil groove (902a02a), sliding bearing (902) outer edge surface is contained in the polygonal hole (5a) that pedestal (5) and upper shell (6) form.
2. moulded case circuit breaker operation mechanism as claimed in claim 1 installs structure-improved, it is characterized in that: in the I-shaped notch of described connector (2) both sides, insert gap slot (101) cell wall, connector (2) front surface and rear surface are provided with through hole (202), hole is built with bearing pin one (3), and bearing pin one (3) is successively through connector (2) front surface, mechanism's side plate (1) and connector (2) rear surface.
3. moulded case circuit breaker operation mechanism as claimed in claim 1 installs structure-improved, it is characterized in that: described bearing pin one (3) is fixed by revolving riveting mode.
4. moulded case circuit breaker operation mechanism as claimed in claim 1 installs structure-improved, it is characterized in that: described Step Shaft (8) is fixed by revolving riveting mode, the circular shaft section that the arc groove of U-shaped lever (7) is installed on Step Shaft (8) head is propped up by Step Shaft (8) head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520592729.2U CN204927208U (en) | 2015-08-03 | 2015-08-03 | Moulded case circuit breaker operating device installation improvement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520592729.2U CN204927208U (en) | 2015-08-03 | 2015-08-03 | Moulded case circuit breaker operating device installation improvement structure |
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| Publication Number | Publication Date |
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| CN204927208U true CN204927208U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520592729.2U Active CN204927208U (en) | 2015-08-03 | 2015-08-03 | Moulded case circuit breaker operating device installation improvement structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111341606A (en) * | 2018-12-18 | 2020-06-26 | 天津平高智能电气有限公司 | Circuit breaker and operating mechanism thereof |
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2015
- 2015-08-03 CN CN201520592729.2U patent/CN204927208U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111341606A (en) * | 2018-12-18 | 2020-06-26 | 天津平高智能电气有限公司 | Circuit breaker and operating mechanism thereof |
| CN111341606B (en) * | 2018-12-18 | 2021-12-31 | 天津平高智能电气有限公司 | Circuit breaker and operating mechanism thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |