CN205081072U - Durable circuit breaker - Google Patents
Durable circuit breaker Download PDFInfo
- Publication number
- CN205081072U CN205081072U CN201520926894.7U CN201520926894U CN205081072U CN 205081072 U CN205081072 U CN 205081072U CN 201520926894 U CN201520926894 U CN 201520926894U CN 205081072 U CN205081072 U CN 205081072U
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- arc copper
- copper bearing
- rotating shaft
- bearing
- circuit breaker
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Abstract
The utility model relates to a circuit breaker technical field especially relates to a durable circuit breaker, including bakelite spare body, install cantilever change -over mechanism on bakelite spare body, by cantilever switching mechanism controls its pivoted operation pivot, cantilever and fixed mounting supporting component on bakelite spare body, the cantilever welding is in the operation pivot, the supporting component suit and has the bearing arrangement that can reduce supporting component and pivoting friction between the operation pivot and do all can on the supporting component in the operation pivot. The utility model discloses a durable circuit breaker connects the rotation between traditional support piece AND operation pivot and improves to sliding connection, has reduced rubbing contact face and frictional force between operation pivot and the support piece, and the rotation is nimble, divides closing speed fast, and stability is good, is difficult for wearing and tearing between operation pivot and the slider, has guaranteed the life and the performance of circuit breaker.
Description
Technical field
The utility model relates to breaker technical field, particularly relates to a kind of Durable circuit breaker.
Background technology
Circuit breaker refers to the electric current that can close, carry and cut-off under normal loop condition and can close and is combined in the interior switching device carrying and cut-off the electric current under abnormal loop condition of official hour.Circuit breaker is divided into primary cut-out and low-voltage circuit breaker by its scope of application, and high-low pressure identification of boundaries is fuzzyyer, is called High-Voltage Electrical Appliances generally by more than 3kV.
Circuit breaker 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, its function is equivalent to Fuse switch and the combination of crossing underheat relay etc.And generally do not need to change parts after disjunction fault current.At present, obtain a wide range of applications.
In the operating mechanism of conventional circuit breaker, cantilever changeover mechanism is normally adopted to realize the combined floodgate of circuit breaker or separating brake as the bindiny mechanism between combined floodgate separating brake dynamical system and moving contact component, during the work of cantilever changeover mechanism, cantilever 3 is welded in operation rotating shaft 2, operation rotating shaft 2 is fixed on bakelite part body by strutting piece 1, as shown in Figure 1, strutting piece 1 is sleeved in operation rotating shaft 2, strutting piece 1 directly contacts with operation rotating shaft 2, after long-time use, rub for a long time between the two, easy generation wearing and tearing or gap, rotate dumb, have a strong impact on speed and the stability of divide-shut brake, thus reduce life-span and the performance of circuit breaker.
Utility model content
The technical problems to be solved in the utility model is: easily produce the technical problem of wearing and tearing afterwards in order to the support and the operation rotating shaft that solve circuit breaker in prior art use for a long time, the utility model provides a kind of Durable circuit breaker.
The utility model solves the technical scheme that its technical problem adopts: a kind of Durable circuit breaker, comprise bakelite part body, the cantilever changeover mechanism be arranged on bakelite part body, control its operation rotating shaft of rotating, cantilever and the supporting component that is fixedly mounted on bakelite part body by cantilever changeover mechanism, described cantilever is welded in operation rotating shaft, supporting component is sleeved in operation rotating shaft, and described supporting component has the bearing arrangement of the rotation friction that can reduce between supporting component and operation rotating shaft.The utility model, by being rotationally connected to be improved to and being slidably connected between traditional strutting piece and operation rotating shaft, reduces the frictional contact surface between operation rotating shaft and strutting piece and frictional force, extends the useful life of operation rotating shaft and supporting component.
Because multiple cantilever is first welded in operation rotating shaft, can be arranged in operation rotating shaft for the ease of multiple supporting component, as preferably, described supporting component comprises and is fixed on arc copper bearing on bakelite part body and half-and-half bearing structure, a part for described operation rotating shaft is positioned at arc copper bearing, another part of operation rotating shaft is positioned at half-and-half bearing structure, described half-and-half bearing structure comprises the first symmetrical arc copper bearing and the second arc copper bearing and multiple roller, radian inside first arc copper bearing and the second arc copper bearing matches with the radian of operation rotating shaft outer ring, the two ends of described first arc copper bearing are fixedly connected with the two ends of arc copper bearing respectively, the two ends of the second arc copper bearing are fixedly connected with the two ends of arc copper bearing, the inner side of the first arc copper bearing and the second arc copper bearing also offers multiple deep-slotted chip breaker, one end of roller is arranged in the deep-slotted chip breaker of the first arc copper bearing, the roller other end is arranged in deep-slotted chip breaker corresponding to the second arc copper bearing, the axis of described roller and the axis being parallel of operation rotating shaft.Operated outside rotating shaft by arc-shaped base and half-and-half bearing structure inclusion, making the installation operating rotating shaft more convenient.Because cantilever outwards opens, therefore, by the outside of half-and-half bearing vibrational power flow in operation rotating shaft, the folding of cantilever is more conducive to.
Drop out from the notch of deep-slotted chip breaker in order to avoid roller, as preferably, on described roller, any one cross section perpendicular to the axis of roller is the girth of circle A, described round A is D, and the arc length that circle A is positioned at deep-slotted chip breaker is greater than D/2.Such structure makes the majority of roller include in deep-slotted chip breaker, avoids roller to drop out from the notch of deep-slotted chip breaker.
Dropping out in order to avoid roller from the end of deep-slotted chip breaker, as preferably, the outer face of described first arc copper bearing and the second arc copper bearing being all provided with the roller cover plate for blocking roller outer face.Blocked the outer face of the first arc copper bearing and the second arc copper bearing by roller cover plate, not only avoid roller and drop out from the end of deep-slotted chip breaker, and make firm being arranged between the first arc copper bearing and the second arc copper bearing of roller.
For making the more firm of half-and-half bearing structure installment, as preferably, described supporting component also comprises clamp and pressing plate, the draw-in groove matched with the first arc copper bearing and the second arc copper support outer is offered inside clamp, clamp is connected to the outside of half-and-half bearing structure, and the two ends of clamp are fixed on bakelite part body by pressing plate.By clamp and pressing plate, not only can ensure the more firm of half-and-half bearing structure installment, and can ensure that roller fully contacts with operation rotating shaft.
The beneficial effects of the utility model are, Durable circuit breaker of the present utility model, by being rotationally connected to be improved to and being slidably connected between traditional strutting piece and operation rotating shaft, reduce the frictional contact surface between operation rotating shaft and strutting piece and frictional force, rotate flexibly, divide-shut brake speed is fast, good stability, not easy to wear between operation rotating shaft and sliding part, ensure that useful life and the performance of circuit breaker.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of circuit breaker in prior art.
Fig. 2 is the front view of the utility model Durable circuit breaker.
Fig. 3 is the perspective view of the utility model Durable circuit breaker.
Fig. 4 is the enlarged drawing at B place in Fig. 3.
Fig. 5 is the assembling schematic diagram of the utility model arc-shaped base and half-and-half bearing structure.
Fig. 6 is the first arc copper seat structure schematic diagram of the utility model with cover plate.
In figure: 1, strutting piece, 2, operation rotating shaft, 3, cantilever, 4, bakelite part body, 5, cantilever changeover mechanism, 6, arc copper bearing, 7, half-and-half bearing structure, 71, the first arc copper bearing, the 72, second arc copper bearing, 73, deep-slotted chip breaker, 8, roller, 9, roller cover plate, 10, clamp, 11, pressing plate.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in figures 2-6, it is the optimum embodiment of the utility model, a kind of Durable circuit breaker, comprise bakelite part body 4, the cantilever changeover mechanism 5 be arranged on bakelite part body 4, control its operation rotating shaft 2 of rotating, cantilever 3 and the supporting component that is fixedly mounted on bakelite part body 4 by cantilever changeover mechanism 5, cantilever 3 is welded in operation rotating shaft 2, supporting component is sleeved in operation rotating shaft 2, and supporting component has the bearing arrangement of the rotation friction that can reduce between supporting component and operation rotating shaft 2.
Supporting component comprises and is fixed on arc copper bearing 6 on bakelite part body 4 and half-and-half bearing structure 7, a part for operation rotating shaft 2 is positioned at arc copper bearing 6, another part of operation rotating shaft 2 is positioned at half-and-half bearing structure 7, half-and-half bearing structure 7 comprises the first symmetrical arc copper bearing 71 and the second arc copper bearing 72 and multiple roller 8, radian inside first arc copper bearing 71 and the second arc copper bearing 72 matches with the radian of operation rotating shaft 2 outer ring, the two ends of the first arc copper bearing 71 are fixedly connected with the two ends of arc-shaped base 6 respectively, the two ends of the second arc copper bearing 72 are fixedly connected with the two ends of arc copper bearing 6, the inner side of the first arc copper bearing 71 and the second arc copper bearing 72 also offers multiple deep-slotted chip breaker 73, one end of roller 8 is arranged in the deep-slotted chip breaker 73 of the first arc copper bearing 71, roller 8 other end is arranged in the deep-slotted chip breaker 73 of the second arc copper bearing 72 correspondence, the axis of roller 8 and the axis being parallel of operation rotating shaft 2.
On roller 8, any one cross section perpendicular to the axis of roller 8 is circle A, and the girth of circle A is D, and the arc length that circle A is positioned at deep-slotted chip breaker 73 is greater than D/2.
The outer face of the first arc copper bearing 71 and the second arc copper bearing 72 is all provided with the roller cover plate 9 for blocking roller 8 outer face.
Supporting component also comprises clamp 10 and pressing plate 11, offer inside clamp 10 with the first arc copper bearing 71 and the second arc copper bearing 72 outside the draw-in groove that matches, clamp 10 is connected to the outside of half-and-half bearing structure 7, and the two ends of clamp 10 are fixed on bakelite part body 4 by pressing plate 11.
The Durable circuit breaker of the present embodiment, by being rotationally connected to be improved to and being slidably connected between traditional strutting piece 1 and operation rotating shaft 2, reduce the frictional contact surface between operation rotating shaft 2 and strutting piece 1 and frictional force, rotate flexibly, divide-shut brake speed is fast, good stability, not easy to wear between operation rotating shaft 2 and sliding part, ensure that useful life and the performance of circuit breaker.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to right.
Claims (5)
1. a Durable circuit breaker, it is characterized in that: comprise bakelite part body (4), be arranged on bakelite part body (4) upper cantilever changeover mechanism (5), its operation rotating shaft (2) of rotating is controlled by cantilever changeover mechanism (5), cantilever (3) and the supporting component be fixedly mounted on bakelite part body (4), described cantilever (3) is welded in operation rotating shaft (2), supporting component is sleeved in operation rotating shaft (2), and described supporting component has the bearing arrangement of the rotation friction that can reduce between supporting component and operation rotating shaft (2).
2. Durable circuit breaker as claimed in claim 1, it is characterized in that: described supporting component comprises and is fixed on arc copper bearing (6) on bakelite part body (4) and half-and-half bearing structure (7), a part for described operation rotating shaft (2) is positioned at arc copper bearing (6), another part of operation rotating shaft (2) is positioned at half-and-half bearing structure (7), described half-and-half bearing structure (7) comprises the first symmetrical arc copper bearing (71) and the second arc copper bearing (72) and multiple roller (8), the radian of the first arc copper bearing (71) and the second arc copper bearing (72) inner side matches with the radian of operation rotating shaft (2) outer ring, the two ends of described first arc copper bearing (71) are fixedly connected with at the two ends of arc copper bearing (6) respectively, the two ends of the second arc copper bearing (72) are fixedly connected with the two ends of arc copper bearing (6), the inner side of the first arc copper bearing (71) and the second arc copper bearing (72) also offers multiple deep-slotted chip breaker (73), one end of roller (8) is arranged in the deep-slotted chip breaker (73) of the first arc copper bearing (71), roller (8) other end is arranged in deep-slotted chip breaker (73) corresponding to the second arc copper bearing (72), the axis of described roller (8) and the axis being parallel of operation rotating shaft (2).
3. Durable circuit breaker as claimed in claim 2, it is characterized in that: described roller (8) any one cross section perpendicular to the axis of roller (8) upper is circle A, the girth of described round A is D, and the arc length that circle A is positioned at deep-slotted chip breaker (73) is greater than D/2.
4. Durable circuit breaker as claimed in claim 3, is characterized in that: the outer face of described first arc copper bearing (71) and the second arc copper bearing (72) is all provided with the roller cover plate (9) for blocking roller (8) outer face.
5. Durable circuit breaker as claimed in claim 4, it is characterized in that: described supporting component also comprises clamp (10) and pressing plate (11), clamp (10) inner side offers the draw-in groove matched with the first arc copper bearing (71) and the second arc copper bearing (72) outside, clamp (10) is connected to the outside of half-and-half bearing structure (7), and the two ends of clamp (10) are fixed on bakelite part body (4) by pressing plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520926894.7U CN205081072U (en) | 2015-11-19 | 2015-11-19 | Durable circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520926894.7U CN205081072U (en) | 2015-11-19 | 2015-11-19 | Durable circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205081072U true CN205081072U (en) | 2016-03-09 |
Family
ID=55433459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520926894.7U Active CN205081072U (en) | 2015-11-19 | 2015-11-19 | Durable circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205081072U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107958827A (en) * | 2017-12-28 | 2018-04-24 | 江苏大全凯帆开关有限公司 | A kind of breaker with modified operating mechanism |
-
2015
- 2015-11-19 CN CN201520926894.7U patent/CN205081072U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107958827A (en) * | 2017-12-28 | 2018-04-24 | 江苏大全凯帆开关有限公司 | A kind of breaker with modified operating mechanism |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |