CN108695107B - Circuit breaker, energy storage device and operating device of energy storage spring of energy storage device - Google Patents
Circuit breaker, energy storage device and operating device of energy storage spring of energy storage device Download PDFInfo
- Publication number
- CN108695107B CN108695107B CN201710222712.1A CN201710222712A CN108695107B CN 108695107 B CN108695107 B CN 108695107B CN 201710222712 A CN201710222712 A CN 201710222712A CN 108695107 B CN108695107 B CN 108695107B
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- Prior art keywords
- helical gear
- energy storage
- gear
- shaft
- spring
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
Abstract
The invention relates to a circuit breaker, an energy storage device and an operating device of an energy storage spring of the energy storage device. The operating device of the energy storage spring comprises: a first transmission comprising a first beveled gear, the first transmission configured to operate the stored energy spring; a second transmission device which comprises a second bevel gear meshed with the first bevel gear, wherein the axis of the second bevel gear is vertical to the axis of the first bevel gear; a third transmission device which comprises a third helical gear meshed with the first helical gear, wherein the axis of the third helical gear is parallel to the axis of the first helical gear; and a driving device configured to be spaced apart from one of the second and third helical gears and to be selectively engaged with or disengaged from the other.
Description
Technical Field
The invention relates to the technical field of switch cabinets, in particular to a circuit breaker, an energy storage device and an operating device of an energy storage spring of the energy storage device in a switch cabinet.
Background
The vacuum circuit breaker mechanism is used as an important operation part of the medium-voltage ring main unit, and the safety and the reliability of a power transmission and distribution system are directly influenced by the performance of the vacuum circuit breaker mechanism. The energy storage device of the circuit breaker is an important element of the energy transmission of the circuit breaker. The vacuum circuit breaker energy storage devices used in the market at present are various, for example, a chinese patent with publication number CN203070955U published in 7, 17 and 2013 provides a spring operating mechanism for a vacuum circuit breaker, a chinese patent with publication number CN201527927U published in 7, 14 and 2010 provides a gear transmission energy storage device for a vacuum circuit breaker, and a chinese patent with publication number CN201594493U published in 9, 29 and 2010 provides a modular spring operating mechanism for a vacuum circuit breaker.
The energy storage devices have the problems that a series of transmission mechanisms such as cams, crank arms, chains and the like are required to be adopted between the energy storage shaft and the main shaft, so that the mechanism has large size, more parts, complex transmission links and high cost, and cannot adapt to increasingly compressed installation space.
Disclosure of Invention
The invention aims to provide an operating device of an energy storage spring, which simplifies a transmission link and has a compact structure.
The present invention also aims to provide an energy storage device to which the above improved operating device is applied.
The present invention also aims to provide a circuit breaker to which the improved operating device described above is applied.
According to an aspect of the present invention, there is provided an operating device of an energy storage spring, including: a first transmission comprising a first beveled gear, the first transmission configured and adapted to operate the stored energy spring; a second transmission including a second bevel gear meshing with the first bevel gear, the second bevel gear having an axis perpendicular to the axis of the first bevel gear; a third transmission device which comprises a third helical gear meshed with the first helical gear, wherein the axis of the third helical gear is parallel to the axis of the first helical gear; and a driving device configured to be spaced apart from one of the second and third helical gears and to be selectively engaged with or disengaged from the other.
The technical scheme of the invention relates to three bevel gears, wherein a first bevel gear is used as a main gear, and a second bevel gear and a third bevel gear are used as energy storage gears. One of the two energy storage gears is vertically arranged with the main gear, and the other energy storage gear is arranged in parallel with the main gear, thereby saving the middle transmission link, reducing the occupied space of the device and simplifying the structure.
In a preferred embodiment, the driving means comprises: a motor having an output shaft; and a clutch mounted on an output shaft of the motor, the clutch being configured to be capable of disengaging the output shaft from the other helical gear when one helical gear, which is spaced apart from the driving means, of the second and third helical gears is used as a driving gear, and to be capable of engaging the output shaft with the other helical gear so that the other helical gear is used as a driving gear.
Preferably, the output shaft of the motor is parallel to the axis of the first helical gear and adapted to engage with or disengage from the third helical gear.
In a preferred embodiment, the first transmission further comprises a first shaft operatively connected to the stored energy spring, the first beveled gear being mounted on the first shaft.
In a preferred embodiment, the second transmission further comprises a second shaft perpendicular to the axis of the first bevel gear, the second bevel gear being mounted on the second shaft, wherein the drive means is spaced from the second bevel gear and the second shaft and the third bevel gear is selectively engageable or disengageable.
In a preferred embodiment, the pitch helix angle of said first helical gear is in the range 45 ° to 55 °.
In a preferred embodiment, the pitch helix angle of said second helical gear is in the range 35 ° to 45 °.
In a preferred embodiment, the pitch helix angle of the third helical gear is in the range 45 ° to 55 °.
According to another aspect of the present invention, there is provided an energy storage device comprising: a frame; the first end of the energy storage spring is fixed on the rack; and the operating device, wherein the first transmission device is connected with the second end of the energy storage spring.
According to a further aspect of the present invention, there is provided a circuit breaker comprising the aforementioned energy storage device.
Additional features and advantages of the invention will be set forth in part in the description which follows, and in part will be apparent to those having ordinary skill in the art upon examination of the following, or may be learned from the practice of the invention.
Drawings
Embodiments of the invention are described in detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a partial three-dimensional schematic view of an energy storage device according to an embodiment of the invention;
FIG. 2 is a partial plan view of an energy storage device according to an embodiment of the invention;
FIG. 3 is a partial plan view of the energy storage device as seen from the back side of FIG. 2;
FIG. 4 is a schematic view of an angle of an operating device according to an embodiment of the present invention; and
fig. 5 is a schematic view of another angle of the operating device according to an embodiment of the present invention.
In the present invention, the same or similar reference numerals denote the same or similar features.
Description of reference numerals:
10. frame 101 first vertical plate
102. Second vertical plate 40. second transmission device
20. Energy storage spring 401, second shaft
201. First end 402, second bevel gear
202. Second end 50, third drive
30. First transmission 501, third shaft
301. First shaft 502. third helical gear
302. First helical gear 60. motor
303. Ratchet wheel
Detailed Description
Referring now to the drawings, illustrative aspects of the disclosed stored energy spring operating device, stored energy device, and circuit breaker will be described in detail. Although the drawings are provided to present some embodiments of the invention, the drawings are not necessarily to scale of particular embodiments, and certain features may be exaggerated, removed, or partially sectioned to better illustrate and explain the present disclosure. The position of some components in the drawings can be adjusted according to actual requirements on the premise of not influencing the technical effect. The appearances of the phrase "in the drawings" or similar language in the specification are not necessarily referring to all drawings or examples.
Certain directional terms used hereinafter to describe the drawings, such as "inner", "outer", "above", "below", and other directional terms, will be understood to have their normal meaning and refer to those directions as they normally relate to when viewing the drawings. Unless otherwise indicated, the directional terms described herein are generally in accordance with conventional directions as understood by those skilled in the art.
The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.
Fig. 1 to 3 show schematic views of an energy storage device according to an embodiment of the invention. As shown, the energy storage device comprises a frame 10, an operating device mounted to the frame 10, and an energy storage spring 20 having a first end 201 connected to the operating device and a second end 202 fixed to the frame 10. The energy storage device is suitable for use in a vacuum circuit breaker, for example, and is operated by an operating device, for example, by stretching/compressing the energy storage spring 20, to store energy in the circuit breaker mechanism, thereby performing a closing operation of the circuit breaker.
In the embodiment shown, the machine frame 10 comprises a first vertical plate 101 and a second vertical plate 102 arranged opposite to each other, on which first vertical plate 101 and second vertical plate 102 the operating device is supported.
Fig. 4 and 5 show in detail one embodiment of the operating device. In the embodiment shown, the operating means comprise a first transmission means 30 capable of operating the charging spring 20 and a second transmission means 40 and a third transmission means 50 respectively engaging the first transmission means 30. Specifically, the first transmission 30 includes a first shaft 301 (or main shaft) horizontally disposed, a first bevel gear 302 (or main gear) mounted at one end of the first shaft 301, and a ratchet gear 303 mounted at the other end of the first shaft 301. The ratchet 303 is connected to the first end 201 of the energy storage spring 20, for example, by a crank arm, and the second end 202 of the energy storage spring 20 is fixed to the second vertical plate 102 of the machine frame 10. It will be understood by those skilled in the art that the specific structure of the ratchet gear 303 and the charging spring 20 is not the focus of the present application, and the conventional ratchet gear and charging spring can be combined with the first transmission device 30 to obtain the charging device according to the present invention, and therefore, the detailed description thereof is omitted for the sake of brevity.
In a preferred embodiment, the pitch helix angle of the first beveled gear 302 is selected from the range of 45 ° to 55 ° to reduce operating forces during energy storage.
The second transmission 40 includes a vertically disposed second shaft 401 and a second bevel gear 402 mounted on the second shaft 401. In the illustrated embodiment, the second shaft 401 acts as a manual energy storage shaft and the second helical gear 402 acts as a manual energy storage gear in mesh with the first helical gear 302. In a preferred embodiment, the pitch helix angle of the second beveled gear 402 is selected from the range of 35 ° to 45 ° to reduce operating forces during energy storage.
The third gear 50 includes a third helical gear 502 that meshes with the first helical gear 302, and an axis of the third helical gear 502 is parallel to an axis of the first helical gear 302. In the illustrated embodiment, the third bevel gear 502 is pivoted as an electric power storage gear by the driving device. In the illustrated embodiment, motor 60 is selected to drive third bevel gear 502. A clutch is installed between the horizontally disposed output shaft of the motor 60 and the third bevel gear 502, so that the output shaft of the motor 60 can be engaged with or disengaged from the third bevel gear 502 according to circumstances to achieve normal operation of the energy storage device.
In a preferred embodiment, the pitch angle of the third helical gear 502 is selected from the range of 45 ° to 55 ° to reduce the operating force during charging.
Although the motor 60 and clutch are shown in the illustrated embodiment to drive the pivoting of the electrical charging shaft, one skilled in the art will recognize that the motor may be replaced with other mechanisms for driving the pivoting of the electrical charging shaft.
The specific operation process of the energy storage device is as follows:
during the manual energy storage operation, the second shaft 401 is rotated to drive the second bevel gear 402 to rotate together, the second bevel gear 402 is meshed with the first bevel gear 302 to rotate the first bevel gear 302, and simultaneously the first bevel gear 302 drives the first shaft 301 to rotate through the clutch device, so as to drive the ratchet wheel 303 to rotate to drive the energy storage spring 20 connected thereto to stretch/compress, thereby completing the energy storage operation. During manual energy storage in which the second bevel gear 402 serves as a driving gear for driving the first bevel gear 302, a clutch between the output shaft of the motor 60 and the third bevel gear 502 separates the output shaft from the third bevel gear 502, thereby allowing the third bevel gear 502 to rotate freely under the driving of the first bevel gear 302.
In the electric energy storage operation, the clutch between the output shaft of the electric motor 60 and the third helical gear 502 causes the output shaft to engage with the third helical gear 502, thereby allowing the third helical gear 502 to rotate under the drive of the electric motor 60. The third helical gear 502 drives the first helical gear 302 to rotate, and the first helical gear 302 drives the first shaft 301 to rotate through the clutch device, so as to drive the ratchet 303 to rotate to drive the energy storage spring 20 connected thereto to stretch/compress, thereby completing the energy storage action. During electric energy storage requiring the third helical gear 502 to act as a drive gear for driving the first helical gear 302, the second shaft 401 and the second helical gear 402 are free to rotate as the first helical gear 302 rotates.
In another embodiment, not shown, the operating means comprise a first transmission and a second transmission and a third transmission respectively engaging the first transmission. The first transmission device comprises a first shaft (or main shaft) which is horizontally arranged, a first gear (or main gear) which is arranged at one end of the first shaft and a ratchet wheel which is arranged at the other end of the first shaft. Wherein, the ratchet wheel is connected with the energy storage spring. Similar to the previous embodiment, the ratchet and the stored energy spring can be mounted and connected using prior art techniques.
In a preferred embodiment, the pitch angle of the first helical gear is selected from the range of 45 ° to 55 ° to reduce the operating force during energy storage.
The second transmission device comprises a second bevel gear meshed with the first bevel gear, and the axis of the second bevel gear is perpendicular to the axis of the first bevel gear. In this embodiment, not shown, the second helical gear is connected as an electric energy storage gear to the motor through a clutch so as to be engaged with or disengaged from the output shaft of the motor as needed.
In a preferred embodiment, the pitch angle of the second helical gear is selected from the range of 35 ° to 45 ° to reduce the operating force during energy storage.
The third transmission device comprises a third shaft arranged horizontally and a third bevel gear arranged on the third shaft. In this not shown embodiment the third shaft acts as a manual energy charging shaft and the third helical gear meshes with the first gear as a manual energy charging gear.
In a preferred embodiment, the pitch angle of the third helical gear is selected from the range of 45 ° to 55 ° to reduce the operating force during charging.
The specific operation process of the energy storage device is as follows:
during manual energy storage operation, the third shaft is rotated to drive the third bevel gear to rotate together, the third bevel gear is meshed with the first bevel gear to rotate the first bevel gear, meanwhile, the first bevel gear drives the first shaft to rotate through the clutch device, and then the ratchet wheel is driven to rotate to drive the energy storage spring connected to the ratchet wheel to stretch/compress, so that energy storage action is completed. During manual energy storage in which the third helical gear serves as a driving gear for driving the first helical gear, the clutch between the output shaft of the motor and the second helical gear separates the output shaft from the second helical gear, thereby allowing the second helical gear to rotate freely under the driving of the first helical gear.
In the electric energy storage operation, a clutch between the output shaft of the motor and the second bevel gear causes the output shaft to engage the second bevel gear, thereby allowing the second bevel gear to rotate under the drive of the motor. The second bevel gear drives the first bevel gear to rotate, the first bevel gear drives the first shaft to rotate through the clutch device, and then the ratchet wheel is driven to rotate to drive the energy storage spring connected to the ratchet wheel to stretch/compress, and energy storage action is completed. During the electric energy storage process in which the second helical gear is used as a driving gear for driving the first helical gear, the third shaft and the third helical gear freely rotate with the rotation of the first helical gear.
According to the invention, one of the energy storage gears is vertically arranged with the main gear, and the other energy storage gear is arranged with the main gear in parallel, so that the main gear is directly jointed with the two energy storage gears, an intermediate transmission link is omitted, the occupied space of the mechanism is reduced, and the structure is simplified. By eliminating one of the energy storage gears, the single manual or electric energy storage can be simply realized, and the mechanism cost is reduced.
It should be understood that although the description is in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent alterations, modifications and combinations can be made by those skilled in the art without departing from the spirit and principles of the invention.
Claims (9)
1. An operating device for a stored energy spring (20), comprising:
a first transmission (30) comprising a horizontally disposed first shaft (301) and a first helical gear (302) mounted at one end of said first shaft (301), the other end of said first shaft (301) being for operative connection to said stored energy spring (20);
a second transmission (40) comprising a vertically disposed second shaft (401) and a second bevel gear (402) mounted to said second shaft (401) and directly engaging said first bevel gear (302), the axis of said second bevel gear (402) being perpendicular to the axis of said first bevel gear (302);
a third transmission (50) comprising a third helical gear (502) directly engaged with the first helical gear (302), the axis of the third helical gear (502) being parallel to the axis of the first helical gear (302), wherein the second helical gear (402) and the third helical gear (502) are directly engaged with the first helical gear (302) at different locations; and
a drive arrangement including a motor (60) having an output shaft and a clutch mounted on the output shaft and configured to be spaced from one of the second helical gear (402) and the third helical gear (502) and selectively engage or disengage the other helical gear;
wherein the drive means is configured such that when one of the second helical gear (402) and the third helical gear (502) spaced from the drive means acts as a drive gear for driving the first helical gear (302), the clutch disengages the output shaft from the other helical gear, and the clutch also engages the output shaft with the other helical gear so that the other helical gear acts as a drive gear for driving the first helical gear (302).
2. An operating device of an energy storage spring (20) according to claim 1, characterized in that the output shaft of the electric motor (60) is parallel to the axis of the first helical gear (302) and is adapted to engage or disengage the third helical gear (502).
3. Operating means of a stored energy spring (20) according to claim 1 or 2, characterised in that said first transmission means (30) further comprises a first shaft (301) operatively connected to said stored energy spring (20), said first bevel gear (302) being mounted on said first shaft (301).
4. An operating means for an energy storing spring (20) according to claim 1 or 2, wherein said second transmission means (40) further comprises a second shaft (401) perpendicular to the axis of said first helical gear (302), said second helical gear (402) being mounted on said second shaft (401), wherein said drive means is spaced from said second helical gear (402) and said second shaft (401) and said third helical gear (502) is selectively engageable or disengageable.
5. An operating means for an energy storing spring (20) according to claim 1 or 2, wherein the pitch angle of said first helical gear (302) is in the range of 45 ° to 55 °.
6. An operating means for an energy storing spring (20) according to claim 1 or 2, wherein the pitch helix angle of said second helical gear (402) is in the range of 35 ° to 45 °.
7. Operating means for an energy storing spring (20) according to claim 1 or 2, characterised in that the pitch helix angle of the third helical gear (502) is in the range of 45 ° to 55 °.
8. An energy storage device, comprising:
a frame (10);
the first end (201) of the energy storage spring (20) is fixed on the frame (10); and
operating device according to any one of claims 1 to 7, in which the first transmission means (30) is connected to the second end (202) of the energy storage spring (20).
9. A circuit breaker comprising the energy storage device of claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710222712.1A CN108695107B (en) | 2017-04-06 | 2017-04-06 | Circuit breaker, energy storage device and operating device of energy storage spring of energy storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710222712.1A CN108695107B (en) | 2017-04-06 | 2017-04-06 | Circuit breaker, energy storage device and operating device of energy storage spring of energy storage device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108695107A CN108695107A (en) | 2018-10-23 |
| CN108695107B true CN108695107B (en) | 2022-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710222712.1A Active CN108695107B (en) | 2017-04-06 | 2017-04-06 | Circuit breaker, energy storage device and operating device of energy storage spring of energy storage device |
Country Status (1)
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TW447443U (en) * | 1998-12-18 | 2001-07-21 | Huang Bau Hua | Power-driven prop-up stand for motorcycle |
| KR20060029804A (en) * | 2004-10-04 | 2006-04-07 | 김이섭 | Spiral energe machine |
| CN203218199U (en) * | 2013-02-25 | 2013-09-25 | 中骏电气（厦门）有限公司 | Modular circuit breaker closing structure |
| CN203434017U (en) * | 2013-08-19 | 2014-02-12 | 江苏华唐电器有限公司 | Manual energy storage device used for breaker spring operating mechanism |
| CN104992856A (en) * | 2015-05-26 | 2015-10-21 | 天津平高智能电气有限公司 | Operating mechanism and framework assembly |
| CN204792508U (en) * | 2015-05-26 | 2015-11-18 | 天津平高智能电气有限公司 | Operating mechanism and frame set spare thereof |
| CN105448558A (en) * | 2015-12-21 | 2016-03-30 | 湖南德忠开关电气有限公司 | Spring energy storing device |
| CN105609383A (en) * | 2016-03-23 | 2016-05-25 | 德力西电气有限公司 | Opening-closing operation control device and circuit breaker |
-
2017
- 2017-04-06 CN CN201710222712.1A patent/CN108695107B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW447443U (en) * | 1998-12-18 | 2001-07-21 | Huang Bau Hua | Power-driven prop-up stand for motorcycle |
| KR20060029804A (en) * | 2004-10-04 | 2006-04-07 | 김이섭 | Spiral energe machine |
| CN203218199U (en) * | 2013-02-25 | 2013-09-25 | 中骏电气（厦门）有限公司 | Modular circuit breaker closing structure |
| CN203434017U (en) * | 2013-08-19 | 2014-02-12 | 江苏华唐电器有限公司 | Manual energy storage device used for breaker spring operating mechanism |
| CN104992856A (en) * | 2015-05-26 | 2015-10-21 | 天津平高智能电气有限公司 | Operating mechanism and framework assembly |
| CN204792508U (en) * | 2015-05-26 | 2015-11-18 | 天津平高智能电气有限公司 | Operating mechanism and frame set spare thereof |
| CN105448558A (en) * | 2015-12-21 | 2016-03-30 | 湖南德忠开关电气有限公司 | Spring energy storing device |
| CN105609383A (en) * | 2016-03-23 | 2016-05-25 | 德力西电气有限公司 | Opening-closing operation control device and circuit breaker |
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| Publication number | Publication date |
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| CN108695107A (en) | 2018-10-23 |
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