CN114050082A - Three station mechanism output device of looped netowrk cabinet and looped netowrk cabinet - Google Patents
Three station mechanism output device of looped netowrk cabinet and looped netowrk cabinet Download PDFInfo
- Publication number
- CN114050082A CN114050082A CN202111355271.5A CN202111355271A CN114050082A CN 114050082 A CN114050082 A CN 114050082A CN 202111355271 A CN202111355271 A CN 202111355271A CN 114050082 A CN114050082 A CN 114050082A
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- Prior art keywords
- closing
- grounding
- output plate
- switch
- main unit
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
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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
- H01H3/38—Driving mechanisms, i.e. for transmitting driving force to the contacts using spring or other flexible shaft coupling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/10—Interlocking mechanisms for interlocking two or more switches
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
A three-station mechanism output device of a ring main unit and the ring main unit are disclosed, wherein the output device comprises an isolating switch switching-on/off end, a grounding switch switching-on/off end and an output plate; the output plate is of a symmetrical structure, and V-shaped grooves are respectively arranged on two sides of the output plate; each V-shaped groove is respectively connected with the closing and opening end of the isolating switch and the closing and opening end of the grounding switch, the output plate is driven to rotate under the driving of the closing and opening end of the isolating switch, the closing and opening of the isolating switch are achieved, and the output plate is driven to rotate reversely under the driving of the closing and opening end of the grounding switch, and the closing and opening of the grounding switch are achieved. The input shaft of the device drives the output plate to rotate through the driving connecting lever and the driving roller, and the output plate drives the output shaft to rotate, so that the switching-on and switching-off of the three-station switch are realized. The output device has the advantages of few parts and simple structure, has the self-locking function of in-place closing and opening, and solves the problems of closing rebound and inaccurate opening positioning commonly existing in the conventional three-station mechanism.
Description
Technical Field
The invention relates to the technical field of ring main units, in particular to a ring main unit three-station mechanism output device and a ring main unit.
Background
The existing three-position switch operating mechanism input device basically adopts a spring-through principle, and the energy released by the spring drives an output device to move. The existing mechanism generally has two problems, one is that reliable closing of the mechanism is difficult to guarantee while the grounding closing speed is met, because the energy requirement on a spring is high when the grounding closing speed is met, but if the energy is high when the spring is closed, the switch rebounds when the switch is closed; secondly, most of output devices of the mechanism are in a four-bar linkage or shifting fork form, the structure is complex, the number of parts is large, and the transmission is unreliable.
Disclosure of Invention
The invention aims to provide a three-station mechanism output device of a ring main unit and the ring main unit, which have the advantages of fewer parts, simple structure, and self-locking function of closing and opening in place, and solve the problems of closing rebound and inaccurate opening positioning commonly existing in the conventional three-station mechanism.
The invention provides a ring main unit three-station mechanism output device, which comprises an isolating switch on-off end, a grounding switch on-off end and an output plate, wherein the isolating switch on-off end is connected with the grounding switch on-off end;
the output plate is of a symmetrical structure, and V-shaped grooves are formed in two sides of the output plate respectively; each V-shaped groove is respectively connected with the closing and opening end of the isolating switch and the closing and opening end of the grounding switch, the output plate is driven to rotate under the driving of the closing and opening end of the isolating switch, the closing and opening of the isolating switch are achieved, and the output plate is driven to rotate reversely under the driving of the closing and opening end of the grounding switch, and the closing and opening of the grounding switch are achieved.
Furthermore, the on-off end of the isolating switch comprises an isolating input shaft, an isolating driving crank arm and an isolating driving roller;
the isolation driving crank arm rotates around the isolation input shaft, and the isolation driving roller drives the output plate to rotate.
Furthermore, the isolation driving idler wheel is sleeved on a pin shaft integrated with the isolation driving crank arm, and the output plate is driven to rotate through matching with a V-shaped groove on the output plate.
Furthermore, the on-off end of the grounding switch comprises a grounding input shaft, a grounding driving crank arm and a grounding driving roller;
the grounding driving crank arm rotates around the grounding input shaft, and the output plate is driven to rotate by the grounding driving roller.
Furthermore, the grounding driving roller is sleeved on a pin shaft integrated with the grounding driving crank arm and drives the output plate to rotate by matching with a V-shaped groove on the output plate.
Furthermore, the V-shaped groove in the output plate is of a V-shaped structure, an arc structure is arranged on the outer side of a junction point in the middle of the V-shaped groove, so that the separation driving roller and/or the grounding driving roller are tangent to an arc during brake opening, and the circle center of the driving roller, the circle center of the input shaft and the circle center of the arc structure are on the same straight line, so that self-locking is formed at the brake opening position.
Furthermore, one side of each V-shaped groove is provided with an arc-shaped groove, and the other side of each V-shaped groove is provided with a linear groove;
the tail end of the arc-shaped groove is used for closing limit, and when closing is guaranteed, one driving roller is located at the tail end of the arc-shaped groove, the other driving roller is located in the linear groove, and the stress direction of the other driving roller is close to 90 degrees to the linear groove, so that self-locking is formed during closing.
Furthermore, the device also comprises a buffer sleeve which is sleeved on the fixed pin shaft and is respectively arranged beside the on-off end of the isolating switch and the on-off end of the grounding switch so as to absorb the energy of the opening switch.
Further, the buffer sleeve material is polyurethane.
The invention provides a ring main unit in a second aspect, which comprises the ring main unit three-station mechanism output device.
In summary, the invention provides an output device of a three-station mechanism of a ring main unit and the ring main unit, wherein the output device comprises an isolating switch switching-on/off end, a grounding switch switching-on/off end and an output plate; the output plate is of a symmetrical structure, and V-shaped grooves are respectively arranged on two sides of the output plate; each V-shaped groove is respectively connected with the closing and opening end of the isolating switch and the closing and opening end of the grounding switch, the output plate is driven to rotate under the driving of the closing and opening end of the isolating switch, the closing and opening of the isolating switch are achieved, and the output plate is driven to rotate reversely under the driving of the closing and opening end of the grounding switch, and the closing and opening of the grounding switch are achieved. The input shaft of the device drives the output plate to rotate through the driving connecting lever and the driving roller, and the output plate drives the output shaft to rotate, so that the switching-on and switching-off of the three-station switch are realized. The output device has the advantages of few parts and simple structure, has the self-locking function of in-place closing and opening, and solves the problems of closing rebound and inaccurate opening positioning commonly existing in the conventional three-station mechanism.
Drawings
FIG. 1 is a schematic diagram of an open position of an output device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an isolation closing position of an output device according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an isolation opening position of an output device according to an embodiment of the invention.
The device comprises a base, a grounding input shaft, a grounding output shaft, a buffer sleeve, a first output plate, a second output plate, a first isolation input shaft, a second isolation drive crank arm, a third isolation drive roller, a fourth isolation output plate, a fifth isolation drive roller, a sixth isolation drive roller, a fourth isolation drive roller, a fifth isolation drive roller, a sixth isolation drive roller, a sixth isolation roller, a sixth.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Compared with the conventional three-station mechanism, the output device of the three-station mechanism of the ring main unit, provided by the invention, has the advantages of fewer parts, simple structure and capability of greatly reducing the cost; the structure is compact, the operating force is small, an additional operating mechanism is not needed, and the implementation mode is simple; the three-station mechanism has the self-locking function of switching on and switching off in place, and can solve the problems of switching-on rebound and inaccurate switching-off positioning commonly existing in the conventional three-station mechanism.
The following further describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 and 2, a first aspect of the present invention provides an output device of a three-station mechanism of a ring main unit, including an isolating switch on/off end, a grounding switch on/off end, and an output plate 4; the output plate 4 is of a symmetrical structure, and two sides of the output plate are respectively provided with a V-shaped groove; each V-shaped groove is respectively connected with the closing and opening end of the isolating switch and the closing and opening end of the grounding switch, the output plate is driven to rotate under the driving of the closing and opening end of the isolating switch, the closing and opening of the isolating switch are achieved, and the output plate is driven to rotate reversely under the driving of the closing and opening end of the grounding switch, and the closing and opening of the grounding switch are achieved.
Furthermore, the on-off end of the isolating switch comprises an isolating input shaft 1, an isolating driving crank arm 2 and an isolating driving roller 3; the isolation driving crank arm 2 rotates around the isolation input shaft 1, and the isolation driving roller 3 drives the output plate 4 to rotate. The isolation driving roller 3 is sleeved on a pin shaft integrated with the isolation driving crank arm 2 and drives the output plate 4 to rotate by matching with a V-shaped groove on the output plate 4.
Furthermore, the on-off end of the grounding switch comprises a grounding input shaft 7, a grounding driving crank arm 6 and a grounding driving roller 5; the grounding driving crank arm 6 rotates around the grounding input shaft 7, and the output plate 4 is driven to rotate by the grounding driving roller 5. The grounding driving roller 5 is sleeved on a pin shaft integrated with the grounding driving crank arm 6 and drives the output plate 4 to rotate by matching with a V-shaped groove on the output plate 4.
Furthermore, the output plate is a symmetrical structure part, and when the mechanism is located at the opening position, the isolation driving roller and the grounding driving roller are both located at the positions tangent to the longer side of the V-shaped groove and used for mutually locking the opening position. The V-shaped groove in the output plate is of a V-shaped structure, the arc structure 9 is arranged on the outer side of a junction point in the middle of the V-shaped groove, so that the isolation driving roller and/or the grounding driving roller are tangent to an arc during brake opening, and the circle center of the driving roller, the circle center of the input shaft and the circle center of the arc structure 9 are on the same straight line, so that self-locking is formed at a brake opening position, and accurate positioning of brake opening is guaranteed.
Furthermore, one side of each V-shaped groove is provided with an arc-shaped groove 10 for yielding and limiting, and the other side of each V-shaped groove is provided with a linear groove 11 for driving; the tail end of the arc-shaped groove is used for carrying out closing limiting, when closing is guaranteed, one driving roller is located at the tail end of the arc-shaped groove, the other driving roller is located in the linear groove, the stress direction of the other driving roller is close to 90 degrees to the linear groove, self-locking is formed when closing is conducted, and closing rebound caused by large driving energy when closing is avoided.
As shown in figure 1, when the three-station mechanism is in the opening position, the position of the output device is shown, at the moment, the isolation driving roller and the grounding driving roller are both arranged on the longer side arc line of the V-shaped groove, and at the moment, the mechanism forms self-locking at the opening position.
When the isolation switch-on is carried out, the isolation input shaft rotates clockwise, the isolation driving idler wheel is driven by the isolation driving connecting lever to move, so that the output plate is driven to rotate anticlockwise until the position shown in figure 2 reaches the isolation switch-on position, at the moment, the isolation driving idler wheel is still located in the linear groove of the V-shaped groove, the stress of the isolation driving idler wheel is close to 90 degrees with the left side wall of the linear groove, on one hand, switch-on self-locking is formed, and on the other hand, rebound caused by large spring energy can be avoided.
When the brake is separated, the separation input shaft rotates anticlockwise, the separation driving idler wheel is driven to move through the separation driving connecting lever, the output plate is driven to rotate clockwise until the brake separating position, as shown in figure 1, the circle center of the driving idler wheel, the circle center of the input shaft and the circle center of the arc structure are on the same straight line, the mechanism forms self-locking at the brake separating position, and accurate positioning of the brake separating is guaranteed.
The opening and closing operation of the grounding switch and the isolating switch are only opposite in direction, and the movement process is not described in detail.
Further, still include cushion collar 8, the suit is on fixed pin axle, sets up respectively by isolator switch on-off end and earthing switch on-off end to absorb the separating brake energy. The buffer sleeve is made of polyurethane and is used for absorbing the brake-separating energy, buffering the impact of the residual energy on the mechanism when the brake-separating is in place and prolonging the service life of the mechanism.
The invention provides a ring main unit in a second aspect, which comprises the ring main unit three-station mechanism output device.
In summary, the invention provides an output device of a three-station mechanism of a ring main unit and the ring main unit, wherein the output device comprises an isolating switch switching-on/off end, a grounding switch switching-on/off end and an output plate; the output plate is of a symmetrical structure, and U-shaped grooves are formed in two sides of the output plate respectively; each U-shaped groove is respectively connected with the switch-on and switch-off end of the isolating switch and the switch-on and switch-off end of the grounding switch, the output plate is driven to rotate under the driving of the switch-on and switch-off end of the isolating switch, the switch-on and switch-off of the isolating switch is achieved, and the output plate is driven to rotate reversely under the driving of the switch-on and switch-off end of the grounding switch, and the switch-on and switch-off of the grounding switch is achieved. The input shaft of the device drives the output plate to rotate through the driving connecting lever and the driving roller, and the output plate drives the output shaft to rotate, so that the switching-on and switching-off of the three-station switch are realized. The output device has the advantages of few parts and simple structure, has the self-locking function of in-place closing and opening, and solves the problems of closing rebound and inaccurate opening positioning commonly existing in the conventional three-station mechanism.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. A three-station mechanism output device of a ring main unit is characterized by comprising an isolating switch switching-on/off end, a grounding switch switching-on/off end and an output plate;
the output plate is of a symmetrical structure, and V-shaped grooves are formed in two sides of the output plate respectively; each V-shaped groove is respectively connected with the closing and opening end of the isolating switch and the closing and opening end of the grounding switch, the output plate is driven to rotate under the driving of the closing and opening end of the isolating switch, the closing and opening of the isolating switch are achieved, and the output plate is driven to rotate reversely under the driving of the closing and opening end of the grounding switch, and the closing and opening of the grounding switch are achieved.
2. The three-station mechanism output device of the ring main unit as claimed in claim 1, wherein the on/off end of the isolating switch comprises an isolating input shaft, an isolating driving crank arm and an isolating driving roller;
the isolation driving crank arm rotates around the isolation input shaft, and the isolation driving roller drives the output plate to rotate.
3. The three-station mechanism output device of the ring main unit as claimed in claim 2, wherein the isolation driving roller is sleeved on a pin shaft integrated with the isolation driving crank arm, and the output plate is driven to rotate by being matched with the V-shaped groove on the output plate.
4. The three-station mechanism output device of a ring main unit according to any one of claims 1 to 3, wherein the on-off end of the grounding switch comprises a grounding input shaft, a grounding driving crank arm and a grounding driving roller;
the grounding driving crank arm rotates around the grounding input shaft, and the output plate is driven to rotate by the grounding driving roller.
5. The three-station mechanism output device of the ring main unit as claimed in claim 4, wherein the ground driving roller is sleeved on a pin shaft integrated with the ground driving crank arm, and the output plate is driven to rotate by being matched with the V-shaped groove on the output plate.
6. The ring main unit three-station mechanism output device according to any one of claims 1 to 5, wherein the V-shaped groove in the output plate is of a V-shaped structure, and an arc structure is arranged outside a middle intersection point of the V-shaped groove, so that the separation driving roller and/or the grounding driving roller are tangent to an arc during opening, and the circle center of the driving roller, the circle center of the input shaft and the circle center of the arc structure are on a straight line, so that self-locking is formed at the opening position.
7. The three-station mechanism output device of a ring main unit according to claim 6, wherein one side of each V-shaped groove is an arc-shaped groove, and the other side of each V-shaped groove is a linear groove;
the tail end of the arc-shaped groove is used for closing limit, and when closing is guaranteed, one driving roller is located at the tail end of the arc-shaped groove, the other driving roller is located in the linear groove, and the stress direction of the other driving roller is close to 90 degrees to the linear groove, so that self-locking is formed during closing.
8. A three-station mechanism output device of a ring main unit according to any one of claims 1 to 7, further comprising a buffer sleeve, which is sleeved on the fixed pin shaft and is respectively disposed beside the on-off end of the isolating switch and the on-off end of the grounding switch to absorb the switching-off energy.
9. The three-station mechanism output device of a ring main unit according to claim 8, wherein the cushion collar is made of polyurethane.
10. A ring main unit, characterized by comprising the ring main unit three-position mechanism output device as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111355271.5A CN114050082A (en) | 2021-11-16 | 2021-11-16 | Three station mechanism output device of looped netowrk cabinet and looped netowrk cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111355271.5A CN114050082A (en) | 2021-11-16 | 2021-11-16 | Three station mechanism output device of looped netowrk cabinet and looped netowrk cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114050082A true CN114050082A (en) | 2022-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111355271.5A Pending CN114050082A (en) | 2021-11-16 | 2021-11-16 | Three station mechanism output device of looped netowrk cabinet and looped netowrk cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114050082A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201262903Y (en) * | 2008-08-25 | 2009-06-24 | 厦门华电开关有限公司 | Simple dependable tri-station mechanism output device |
| CN201601040U (en) * | 2009-12-09 | 2010-10-06 | 平高集团有限公司 | Three-working-position breaking and closing electric operation mechanism |
| KR20130035171A (en) * | 2011-09-29 | 2013-04-08 | 티케이디 가부시키가이샤 | Operating device for three-position switch |
| KR20140013720A (en) * | 2012-07-26 | 2014-02-05 | 엘에스산전 주식회사 | Actuator for switchgear and clutch apparatus of actuator for switchgear |
| CN104505279A (en) * | 2014-12-25 | 2015-04-08 | 中国西电电气股份有限公司 | Three-station position changeover device and isolating switch equipment based on same |
| CN104517755A (en) * | 2014-06-20 | 2015-04-15 | 广西春茂电气自动化工程有限公司 | Three-position switching control disk of switchgear |
| CN207663979U (en) * | 2017-11-24 | 2018-07-27 | Abb瑞士股份有限公司 | A kind of three-position switch operation mechanism |
-
2021
- 2021-11-16 CN CN202111355271.5A patent/CN114050082A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201262903Y (en) * | 2008-08-25 | 2009-06-24 | 厦门华电开关有限公司 | Simple dependable tri-station mechanism output device |
| CN201601040U (en) * | 2009-12-09 | 2010-10-06 | 平高集团有限公司 | Three-working-position breaking and closing electric operation mechanism |
| KR20130035171A (en) * | 2011-09-29 | 2013-04-08 | 티케이디 가부시키가이샤 | Operating device for three-position switch |
| KR20140013720A (en) * | 2012-07-26 | 2014-02-05 | 엘에스산전 주식회사 | Actuator for switchgear and clutch apparatus of actuator for switchgear |
| CN104517755A (en) * | 2014-06-20 | 2015-04-15 | 广西春茂电气自动化工程有限公司 | Three-position switching control disk of switchgear |
| CN104505279A (en) * | 2014-12-25 | 2015-04-08 | 中国西电电气股份有限公司 | Three-station position changeover device and isolating switch equipment based on same |
| CN207663979U (en) * | 2017-11-24 | 2018-07-27 | Abb瑞士股份有限公司 | A kind of three-position switch operation mechanism |
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