CN110379685B - Flexible tripping structure - Google Patents
Flexible tripping structure Download PDFInfo
- Publication number
- CN110379685B CN110379685B CN201910479931.7A CN201910479931A CN110379685B CN 110379685 B CN110379685 B CN 110379685B CN 201910479931 A CN201910479931 A CN 201910479931A CN 110379685 B CN110379685 B CN 110379685B
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- plate
- half shaft
- closing
- flexible
- shaft
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/505—Latching devices between operating and release mechanism
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H2071/109—Operating or release mechanisms with provisions for selecting between automatic or manual reset
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a flexible tripping structure which comprises a manual operating mechanism, an electric operating mechanism and a closing half shaft mechanism, wherein the closing half shaft mechanism comprises a closing half shaft and a flexible tripping plate arranged on the closing half shaft; the electric operating mechanism is positioned on the other side of the closing half shaft and mainly comprises a push rod and a pushing device for pushing the push rod to extend out; the flexible tripping plate comprises a manual closing action part extending to one side of the push plate along the radial direction and an electric closing action part extending to one side of the push rod along the radial direction. The invention not only ensures the effective stroke, but also has uniform integral stress without torsion to influence the action and the like, thereby effectively solving the problems of short service life, unreliability, fracture and the like in the process of driving the opening and closing brake to release.
Description
Technical Field
The invention relates to the technical field of electrical switching equipment, in particular to a flexible tripping structure.
Background
The flexible tripping structure of a manual opening and closing switch in the power switch mechanism part usually adopts a torsion spring structure, the torsion spring structure is easy to generate overall torsion due to unilateral stress, the action is unreliable, the action times are increased, fatigue deformation is easy to occur, the driving distance is insufficient, the switch cannot be closed, and the switch performance is influenced. Meanwhile, the original mechanism of the electric tripping baffle adopts the baffle with the screw rod, and the baffle is easy to break at the screw thread after frequent action.
The invention patent of publication number CN106373822B provides a circuit breaker spring operating mechanism, which comprises a mechanism box, a cam shaft is arranged in the mechanism box, a closing cam is arranged on the cam shaft, the closing cam shaft is in transmission connection with a closing spring through an energy storage connecting lever, a driving main shaft is also arranged in the mechanism box, a closing connecting lever part, a driving connecting lever part and a closing holding plate are fixedly arranged on the driving main shaft, a tripping half shaft is rotatably assembled on the mechanism box, the tripping half shaft has a closing holding position which is in contact with the closing holding plate and in blocking fit with the closing holding plate so as to lock the driving connecting lever part at a closing position through the closing holding plate and the driving main shaft on a rotating stroke, and a tripping avoiding position of the tripping avoiding closing holding plate is also provided. The tripping half shaft is utilized to directly block and limit the closing retaining plate, so that closing retaining limit of the driving main shaft is realized, the opening retaining plate can be rapidly tripped only by driving the tripping half shaft to rotate to an avoiding position, the overall structure is simple, and tripping operation is rapid and convenient.
The utility model discloses a free tripping system for electrical switchgear operating device is disclosed like notice No. CN208781788U, when free tripping system carried the knot, left side closes the left side and closes the left-hand drive portion and the right-hand drive portion that divides that the brake control portion one and right side closed and open the brake control portion one was equipped with respectively with the unblock about the connecting rod epaxial left side drive portion and right drive portion correspond the linkage make free tripping system be in locking state and realize switch electrical switching-on, when free tripping system was tripped, left side close the left side and divide the brake control portion two and right side close the brake control portion two respectively with the unblock about the connecting rod epaxial left drive portion (1101) and the right drive portion that is equipped with correspond the linkage, left side close the brake linkage portion and right side close the brake linkage portion respectively with unblock under the connecting rod axle correspond the linkage and can make free tripping system be in unblock state and realize switch electrical switching-off. The free tripping system reduces the abrasion condition of the operating mechanism, improves the integral strength, and prolongs the mechanical life of the operating mechanism under the condition of not reducing the breaking speed.
The utility model discloses a half shaft type switching-on device like bulletin number CN206685275U, the switching-on semi-axis sets up in the top of combined floodgate pawl, combined floodgate semi-axis and combined floodgate pawl swing joint, the side of combined floodgate pawl is provided with the cam, the below of cam is provided with the sector plate, one side of sector plate is provided with No. one link plate, the opposite side of sector plate is provided with the separating brake semi-axis, the below of sector plate still is provided with No. two link plates and output pivot respectively; this semi-axis formula closing device adopts semi-axis formula closing mechanism, and the transmission is simpler, and the effectual reliability and the mechanical life who continues the mechanism combined floodgate, the axle center of combined floodgate semi-axis and the centre of a circle setting of cam are on same axis, and is rational in infrastructure, and transmission efficiency maximize, the other end of a tie plate and No. two tie plates are fixed jointly in the same point, can reach the stroke of effectual restraint separating brake, can also keep good structural strength, compact structure, and the transmission is more simple and easy.
The scheme can not effectively solve the problem of reliable closing and tripping.
Disclosure of Invention
The invention provides a flexible tripping structure for solving the problems in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
a flexible tripping structure comprises a manual operating mechanism, an electric operating mechanism and a closing half shaft mechanism, wherein the closing half shaft mechanism comprises a closing half shaft and a flexible tripping plate arranged on the closing half shaft, and the closing half shaft is also connected with a closing half shaft rotating reset device;
the manual operating mechanism is positioned on one side of the closing half shaft and mainly comprises a handle, a separating and combining shaft and a push plate, the handle is arranged on the separating and combining shaft, the separating and combining shaft is connected with the push plate protruding outwards, and the push plate is also connected with a push plate resetting device;
the electric operating mechanism is positioned on the other side of the closing half shaft and mainly comprises a push rod and a pushing device for pushing the push rod to extend out;
the flexible tripping plate comprises a manual closing action part extending to one side of the push plate along the radial direction and an electric closing action part extending to one side of the push rod along the radial direction.
The interlocking mechanism mainly comprises an output connecting lever, an interlocking plate and a shifting plate, wherein the shifting plate is arranged on the closing half shaft and protrudes outwards in the radial direction, the output connecting lever is positioned on one side of the manual operating mechanism of the closing half shaft, and the output connecting lever is in linkage connection with the closing half shaft; the interlocking plate is positioned between the output crank arm and the shifting plate, the middle position of the interlocking plate is rotationally connected with the hinge shaft, and the shifting plate is positioned below the interlocking plate;
one end of the interlocking plate points to one side of the shifting plate, the other end of the interlocking plate is connected with the output crank arm, and the closing half shaft drives the output crank arm to rotate in a linkage mode.
And the output crank arm is in linkage connection with the closing half shaft through an energy storage retaining mechanism.
And an output half shaft is arranged on the output crank arm, is positioned above the interlocking plate and is in contact fit with the interlocking plate, and the rotation of the output half shaft enables the contact position of the interlocking plate and the output half shaft to be changed.
The push plate resetting device comprises a tension spring, one end of the tension spring is connected with the push plate, and the other end of the tension spring extends towards one side far away from the push plate and is connected to the positioning pin shaft.
The switching-on half shaft rotation resetting device comprises a torsion spring sleeved on the switching-on half shaft, one bearing arm of the torsion spring is connected with the flexible tripping plate, and the other bearing arm of the torsion spring is connected with a fixed pin with a fixed position.
The pushing device is a coil type pushing device.
The flexible tripping plate is a spring steel plate.
The invention has the beneficial effects that:
the flexible tripping structure has small elastic deformation due to the thin plate reed in the manual and electric opening and closing processes of the switch, not only ensures the effective stroke, but also has uniform integral stress without torsion to influence the action and the like, and effectively solves the problems of short service life, unreliability, fracture and the like in the process of driving the opening and closing tripping.
The invention can realize reliable operation of closing and tripping during manual or electric closing. When the breaker is operated manually, the operating handle rotates the opening and closing shaft clockwise, so that the pushing plate presses the manual closing action part of the flexible tripping plate to a certain angle and drives the closing half shaft to rotate, and the closing tripping function of the breaker mechanism is realized. When the breaker mechanism is electrically operated, the pushing device pushes the push rod to extend out, and the electric switching-on action part of the flexible tripping plate is pushed by the push rod to drive the switching-on half shaft to rotate, so that the switching-on tripping function of the breaker mechanism is realized.
The invention is also provided with an interlocking mechanism to prevent misoperation of manual closing. When the switching mechanism is switched on, the output connecting lever rotates to a certain angle under the linkage action of the switching-on half shaft, one end of the interlocking plate is pulled to the semicircular end face of the output half shaft on the output connecting lever by external force, the other end of the interlocking plate rotates to the position above the shifting plate, at the moment, the interlocking state is realized, the operating handle rotates the switching-on shaft clockwise, the pushing plate presses the manual switching-on action part of the flexible tripping plate to a certain angle and drives the switching-on half shaft to rotate, the shifting plate assembled on the switching-on half shaft cannot rotate due to interference of the interlocking plate, the switching-on half shaft cannot rotate to a tripping angle, and the switching-on interlocking function is realized.
Drawings
Fig. 1 shows the non-operating state of the switching mechanism in the open state.
Fig. 2 shows a manually operated closing state when the switching mechanism is in the opening state.
Fig. 3 shows a manually operated closing state when the switching mechanism is in the closing state.
Fig. 4 shows the electrically operated closing state in the opening state of the switching mechanism.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
As shown in fig. 1 to 4, the flexible trip structure of the present invention includes a manual operating mechanism, an electric operating mechanism, a closing half-shaft mechanism and an interlocking mechanism. The switching-on half shaft mechanism comprises a switching-on half shaft 10 and a flexible tripping plate 8 arranged on the switching-on half shaft 10, and the switching-on half shaft 10 is further connected with a switching-on half shaft rotating reset device.
In the embodiment, the flexible tripping plate 8 is a 65Mn spring steel plate with the thickness of 1mm, and the switching-on half shaft 10 can be driven before elastic deformation, so that reliable switching-on can be realized. After the linkage of closing a switch, the push plate is driven again, the flexible tripping plate elastically deforms, and the interlocking function of closing a switch is effectively realized.
In this embodiment, the closing half shaft rotation resetting device includes a torsion spring sleeved on the closing half shaft 10, one bearing arm of the torsion spring is connected with the flexible tripping plate 8, and the other bearing arm of the torsion spring is connected with the fixed pin 11 with a fixed position.
The manual operation mechanism is located on one side of the closing half shaft 10 and mainly comprises a handle 1, a split-combined shaft 2 and a push plate 3, the handle 1 is installed on the split-combined shaft 2, the split-combined shaft 2 is connected with the push plate 3 protruding outwards, and the push plate 3 is further connected with a push plate reset device.
The push plate resetting device comprises a tension spring 4, one end of the tension spring 4 is connected with the push plate 3, and the other end of the tension spring 4 extends towards one side far away from the push plate and is connected to the positioning pin shaft.
The electric operating mechanism is located on the other side of the closing half shaft 10 and mainly comprises a push rod 12 and a pushing device for pushing the push rod to extend out. The pushing device is a coil type pushing device 9.
The flexible tripping plate 8 comprises a manual closing action part extending to one side of the push plate 3 along the radial direction and an electric closing action part extending to one side of the push rod 12 along the radial direction.
The interlocking mechanism is used for preventing misoperation of manual closing and mainly comprises an output connecting lever 5, an interlocking plate 6 and a shifting plate 7, wherein the shifting plate 7 is installed on a closing half shaft 10 and protrudes outwards in the radial direction, the output connecting lever 5 is positioned on one side of a manual operating mechanism of the closing half shaft 10, and the output connecting lever 10 is in linkage connection with the closing half shaft 10 through an energy storage retaining mechanism (the energy storage retaining mechanism is in the prior art, and the specific structure and the principle of the energy storage retaining mechanism are not detailed in detail).
Toggle plate 7 is located below interlock plate 6.
The output crank arm 5 is provided with an output half shaft 13, and the output half shaft 13 is positioned above the interlocking plate 6 and is in contact fit with the interlocking plate 6. The switching-on half shaft 10 drives the output crank arm 5 to rotate in a linkage manner, the output half shaft 13 rotates to enable the contact position of the interlocking plate 6 and the output half shaft 13 to change, the connecting end of the interlocking plate and the output crank arm is tilted upwards, and the interlocking plate is directed to one end of the shifting plate 7 and falls down simultaneously.
The flexible tripping structure has small elastic deformation due to the thin plate reed in the manual and electric opening and closing processes of the switch, not only ensures the effective stroke, but also has uniform integral stress without torsion to influence the action and the like. The problems of short service life, unreliability, fracture and the like in the process of driving the opening and closing brake to release are effectively solved.
The invention can realize reliable operation of closing and tripping during manual or electric closing.
In the manual closing operation of the invention, as shown in fig. 2, the interlocking plate 6 is in an open state, the operating handle 1 clockwise rotates the opening and closing shaft, so that the pushing plate 3 presses the manual closing action part of the flexible tripping plate 8 to a certain angle and drives the closing half shaft 10 to rotate, and the closing half shaft 10 rotates to drive the circuit breaker mechanism to realize the closing and tripping function.
Meanwhile, due to the arrangement of the interlocking mechanism, misoperation of manual closing can be prevented. As shown in fig. 3, when the switching mechanism is switched on, the output crank arm 5 rotates to a certain angle under the linkage action of the switching half shaft 10, one end of the interlocking plate 5 is pulled to the semicircular end face of the output half shaft 13 on the output crank arm by external force, and the other end of the interlocking plate 5 rotates to the upper part of the dial plate 7 to be abutted against the dial plate, and at this time, the switching mechanism is in a locking state. The handle 1 is continuously operated to rotate the switching shaft 2 clockwise, so that the push plate 3 presses the manual switching action part of the flexible tripping plate 8 to a certain angle and drives the switching-on half shaft 10 to rotate, the shifting plate 7 assembled on the switching-on half shaft cannot rotate due to interference of the interlocking plate 6, the switching-on half shaft 5 cannot rotate to a tripping angle, and the switching-on interlocking function is realized.
In the invention, when the electric closing operation is performed, as shown in fig. 4, the linkage plate 6 is in an open state, rated voltage is applied to the coil type pushing device 9, the coil type pushing device 9 pushes the push rod to extend, and the electric closing action part of the flexible tripping plate 8 is pushed by the push rod to drive the closing half shaft 10 to rotate, so that the closing tripping function of the circuit breaker mechanism is realized.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the scope of the present invention.
Claims (7)
1. The utility model provides a flexible dropout structure, includes manually operation mechanism, electric operating mechanism and combined floodgate semi-axis mechanism, its characterized in that: the switching-on half shaft mechanism comprises a switching-on half shaft and a flexible tripping plate arranged on the switching-on half shaft, and the switching-on half shaft is also connected with a switching-on half shaft rotating reset device;
the manual operating mechanism is positioned on one side of the closing half shaft and mainly comprises a handle, a separating and combining shaft and a push plate, the handle is arranged on the separating and combining shaft, the separating and combining shaft is connected with the push plate protruding outwards, and the push plate is also connected with a push plate resetting device;
the electric operating mechanism is positioned on the other side of the closing half shaft and mainly comprises a push rod and a pushing device for pushing the push rod to extend out;
the flexible tripping plate comprises a manual closing action part extending to one side of the push plate along the radial direction and an electric closing action part extending to one side of the push rod along the radial direction;
the interlocking mechanism mainly comprises an output connecting lever, an interlocking plate and a shifting plate, wherein the shifting plate is arranged on the closing half shaft and protrudes outwards in the radial direction, the output connecting lever is positioned on one side of the manual operating mechanism of the closing half shaft, and the output connecting lever is in linkage connection with the closing half shaft; the interlocking plate is positioned between the output crank arm and the shifting plate, the middle position of the interlocking plate is rotationally connected with the hinge shaft, and the shifting plate is positioned below the interlocking plate;
one end of the interlocking plate points to one side of the shifting plate, the other end of the interlocking plate is connected with the output crank arm, and the closing half shaft drives the output crank arm to rotate in a linkage mode.
2. The flexible trip structure of claim 1, wherein: and the output crank arm is in linkage connection with the closing half shaft through an energy storage retaining mechanism.
3. The flexible trip structure of claim 1, wherein: and an output half shaft is arranged on the output crank arm, is positioned above the interlocking plate and is in contact fit with the interlocking plate, and the rotation of the output half shaft enables the contact position of the interlocking plate and the output half shaft to be changed.
4. The flexible trip structure according to any of claims 1-3, wherein: the push plate resetting device comprises a tension spring, one end of the tension spring is connected with the push plate, and the other end of the tension spring extends towards one side far away from the push plate and is connected to the positioning pin shaft.
5. The flexible trip structure according to any of claims 1-3, wherein: the switching-on half shaft rotation resetting device comprises a torsion spring sleeved on the switching-on half shaft, one bearing arm of the torsion spring is connected with the flexible tripping plate, and the other bearing arm of the torsion spring is connected with a fixed pin with a fixed position.
6. The flexible trip structure according to any of claims 1-3, wherein: the pushing device is a coil type pushing device.
7. The flexible trip structure according to any of claims 1-3, wherein: the flexible tripping plate is a spring steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910479931.7A CN110379685B (en) | 2019-06-04 | 2019-06-04 | Flexible tripping structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910479931.7A CN110379685B (en) | 2019-06-04 | 2019-06-04 | Flexible tripping structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110379685A CN110379685A (en) | 2019-10-25 |
| CN110379685B true CN110379685B (en) | 2021-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910479931.7A Active CN110379685B (en) | 2019-06-04 | 2019-06-04 | Flexible tripping structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN110379685B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202434441U (en) * | 2011-10-28 | 2012-09-12 | 余姚市华宇电器有限公司 | Opening and closing interlocking structure of breaker mechanism |
| CN102592859B (en) * | 2012-02-08 | 2014-04-02 | 宁波舜利高压开关科技有限公司 | Manual opening and closing device for operation mechanism |
| CN108597942B (en) * | 2018-06-15 | 2024-03-08 | 宏秀电气有限公司 | Closing interlocking mechanism of pole-mounted switch |
| CN208385305U (en) * | 2018-08-01 | 2019-01-15 | 浙江巨力电气有限公司 | A kind of interlocking gear of breaker |
| CN109243879A (en) * | 2018-10-09 | 2019-01-18 | 宁波鑫鑫鑫寅电气有限公司 | AC high-voltage SF6 breaker and its spring operating mechanism |
| CN209880415U (en) * | 2019-06-04 | 2019-12-31 | 许昌合泰机械设备有限公司 | Closing tripping structure of power switching mechanism |
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2019
- 2019-06-04 CN CN201910479931.7A patent/CN110379685B/en active Active
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| CN110379685A (en) | 2019-10-25 |
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