CN203166388U - Electric vacuum circuit breaker driving structure - Google Patents
Electric vacuum circuit breaker driving structure Download PDFInfo
- Publication number
- CN203166388U CN203166388U CN 201320137815 CN201320137815U CN203166388U CN 203166388 U CN203166388 U CN 203166388U CN 201320137815 CN201320137815 CN 201320137815 CN 201320137815 U CN201320137815 U CN 201320137815U CN 203166388 U CN203166388 U CN 203166388U
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- clutch
- arc
- worm gear
- worm
- circuit breaker
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Abstract
The utility model relates to an electric vacuum circuit breaker driving structure. A breaker is mounted on a fixing seat and can move forth and back, a bottom portion of the breaker is further equipped with a motor, a worm gear, a worm rod, an embedding tooth type clutch, a transmission shaft , a driving sprocket wheel, a driven sprocket wheel, a chain and a transmission gear, wherein a rotation shaft of the motor is directly in driving connection with the worm rod, the worm rod is in driving connection with the worm wheel, periphery of a nut forms external teeth, the nut is engaged with the transmission gear through the external teeth, the transmission gear is in coaxially fixed connection with the driven sprocket wheel, the driving sprocket wheel is in driving connection with the driven sprocket wheel through the chain, a back side face of the worm wheel forms two arc-shaped flat bottom grooves and two arc-shaped inclined bottom grooves, two transmission blocks are integrated at a front side face of a movable portion of the clutch, the two transmission blocks are respectively embedded in the arc-shaped flat bottom grooves at the back side face of the worm wheel, and each arc-shaped inclined bottom groove of the worm wheel is provided with a rolling ball. The electric vacuum circuit breaker driving structure has advantages of simple clutch structure and strong reliability.
Description
Technical field
The utility model belongs to the technical field of cabinet, is specifically related to a kind of electrodynamic type vacuum circuit-breaker Drive Structure.
Background technology
The circuit breaker of cabinet often need move forward and backward between service position and test position, so that dislocation.The most traditional cabinet generally adopts manual mode to drive circuit breaker, circuit breaker is fixedlyed connected with nut, nut sleeve is connected on the screw rod, the front end of screw rod is provided with spline, and the supporting wind that wounded in the battle keyhole is arranged, when the needs running circuit breaker, just wind is inserted the front end of screw rod, shake wind, screw rod is rotated, so nut moves forward and backward and drives circuit breaker and move forward and backward.Because the manual mode of operation trouble, people had designed the circuit breaker Drive Structure of electronic mode again afterwards, utilized the rotation of motor-driven screw rod.Certainly, the circuit breaker Drive Structure of electronic mode still should keep manual system, in order to can advancing and retreat by the manual actuation circuit breaker when power driven system breaks down.In order to realize the selection conversion of manual system and power driven system, must between two cover systems, clutch be set.But existing electrodynamic type vacuum circuit-breaker Drive Structure has the following disadvantages: 1, clutch complex structure, and clutch generally adopts electromagnetic clutch, poor reliability; 2, lack reliable interlock connection, misoperation easily between manual system and the power driven system.
The utility model content
The purpose of this utility model is to provide a kind of electrodynamic type vacuum circuit-breaker Drive Structure, and its clutch is simple in structure, good reliability.
Its purpose can realize by following scheme: a kind of electrodynamic type vacuum circuit-breaker Drive Structure, comprise switch cabinet body, switch cabinet body is provided with the cabinet door, be provided with circuit breaker in switch cabinet body inside, holder, screw rod, the cabinet outside is provided with wind, circuit breaker can be installed on the holder movably forward and backward, screw axial is fixed and circumferentially is installed in rotation in the holder, the circuit breaker bottom is fixedly connected with nut, nut sleeve is connected on the screw rod, the rear end of wind is provided with splined hole, the front end of screw rod is provided with spline, the splined hole movable sleeve of the rear end of wind is inserted in the spline outside of screw front end, it is characterized in that, in the circuit breaker bottom motor is installed also, worm gear, worm screw, jaw clutch, power transmission shaft, drive sprocket, driven sprocket, chain, travelling gear, jaw clutch comprise clutch fixed part and clutch movable part, the clutch fixed part is provided with recess, the clutch movable part be provided with can be chimeric with this recess protuberance; Be rotatably mounted with driving sleeve at holder, driving sleeve and power transmission shaft keyed jointing, both are movable in the axial direction and upwards fixing in week, and the front end of driving sleeve also is provided with the spline that cooperates with the wind splined hole; Motor is connected with power supply, and machine shaft directly drives and connects worm screw, and worm drive connects worm gear; The clutch fixed part is fixedly mounted on the power transmission shaft with drive sprocket is coaxial, is enclosed within on the power transmission shaft to the loose fit of clutch movable part, and clutch movable part and power transmission shaft form circumferentially and can relatively rotate, axial relatively-movable matching relationship; Worm gear is installed in rotation on the power transmission shaft, and worm gear and power transmission shaft form axially and upward fix, relatively turnable matching relationship makes progress in week;
The periphery of described nut is formed with external tooth, and nut utilizes this external tooth and travelling gear to form and is connected with a joggle, and travelling gear is fixedlyed connected with driven sprocket is coaxial, and drive sprocket connects driven sprocket by chain drive; The clutch movable part is installed in the worm gear back, and the clutch fixed part is installed in clutch movable part back, is provided with the spring of applied thrust between clutch fixed part and clutch movable part;
Be formed with the flat bottomed recess of two arcs, the wedged bottom groove of two arcs at the trailing flank of worm gear, the groove depth of arc wedged bottom groove is shoaled to two ends gradually by the centre, and the groove depth of the flat bottomed recess of arc is remained unchanged to two ends by the centre; Article two, the arc flat bottomed recess is about the distribution that is centrosymmetric of the center of worm gear, and also about the distribution that is centrosymmetric of the center of worm gear, the radian of two arc flat bottomed recess equals the radian of two arc wedged bottom grooves for two arc wedged bottom grooves; The leading flank of clutch movable part is formed with two drive blocks, and these two drive blocks embed respectively in the arc flat bottomed recess of worm gear trailing flank; Insert a ball respectively in each bar arc wedged bottom groove of worm gear, the diameter of ball equals the groove depth of worm gear wedged bottom groove middle part.
Be preferably, the two ends groove depth of the arc wedged bottom groove of worm gear is equivalent to half of diameter of ball.
Be more preferably, be provided with first sensitive switch on the front end next door of screw rod, the position of first sensitive switch cooperates with the position of wind rear end; Also be provided with second sensitive switch on cabinet, the position of second sensitive switch cooperates with the position of cabinet door; Motor power is connected to motor by first sensitive switch, second sensitive switch.
The utlity model has following advantage and effect:
1, clutch is simple in structure, and clutch adopts pure mechanical clutch, reliability height.When carrying out the manual mode driving, the clutch separation between motor and the circuit breaker can be disconnected the transmission between manual system and the motor, avoid hand process that motor is become generator, alleviate the operation resistance.
2, under most of normal conditions, all use the motorized motions mode, have only and just use manual mode once in a while under special circumstances.And when needs adopt the motorized motions mode, only need starter motor, just can make the clutch engagement automatically.That is, the rotation of the utility model motor can make the clutch between motor and the circuit breaker mesh automatically, makes its engagement and need not to control clutch more specially.
3, interlock connection is reliable between manual system and the power driven system, can misoperation: when screw front end was inserted in the wind rear end, first sensitive switch disconnected, so motor can't rotate, and namely can't carry out electric operating; Otherwise, when motor can rotate, the first sensitive switch closure is described, mean that the wind rear end do not insert screw front end, namely meaning can not be manual.In addition, when the cabinet door was opened, second sensitive switch disconnected, and can not carry out electric operating by motor and drive circuit breaker, only closed at the cabinet door, when second sensitive switch is closed, just can carry out electric operating.Like this, can improve reliability and fail safe.
Description of drawings
Fig. 1 is the plan structure principle schematic of the utility model specific embodiment.
Fig. 2 is the side-looking structural principle schematic diagram of manual driving member among Fig. 1.
Fig. 3 is the plan structure principle schematic (when clutch is in engagement) of power driven system and clutch among Fig. 1.
Fig. 4 is the plan structure principle schematic of structure shown in Fig. 3 when clutch is in released state.
Fig. 5 be among Fig. 3 worm and gear and motor face the structural principle schematic diagram.
Fig. 6 is the trailing flank schematic diagram of worm gear among Fig. 3.
Fig. 7 is the flat bottomed recess deployed configuration schematic diagram of arc among Fig. 6.
Fig. 8 is the wedged bottom groove deployed configuration schematic diagram (when clutch is in released state) of arc among Fig. 6.
Fig. 9 is the wedged bottom groove deployed configuration schematic diagram (when clutch is in engagement) of arc among Fig. 6.
Figure 10 is the circuit for controlling motor principle schematic.
Embodiment
Fig. 1, Fig. 2, Fig. 3, Fig. 4, electrodynamic type vacuum circuit-breaker Drive Structure shown in Figure 5 comprises switch cabinet body, switch cabinet body is provided with the cabinet door, be provided with circuit breaker 8 in switch cabinet body inside, holder 81, screw rod 32, the cabinet outside is provided with wind 31, circuit breaker 8 can be installed on the holder 81 movably forward and backward, screw rod 32 axial restraints and circumferentially being installed in rotation in the holder 81, circuit breaker 8 bottoms are fixedly connected with nut 33, nut 33 is socketed on the screw rod 32, the rear end of wind is provided with splined hole 310, the front end 320 of screw rod is provided with spline, splined hole 310 movable sleeves of wind rear end are inserted in the spline outside of screw front end 320, in circuit breaker 8 bottoms motor 11 is installed also, worm screw 13, worm gear 12, jaw clutch 2, power transmission shaft 5, drive sprocket 41, driven sprocket 43, chain 42, travelling gear 44, jaw clutch 2 comprises clutch fixed part 21 and clutch movable part 22, clutch fixed part 21 is provided with recess 210, clutch movable part 22 be provided with can be chimeric with this recess 210 protuberance 220; Be rotatably mounted with driving sleeve 52 at holder 81, driving sleeve 52 and power transmission shaft 5 keyed jointings, both are movable in the axial direction and upwards fixing in week, and the front end 51 of driving sleeve also is provided with the spline that cooperates with wind splined hole 310; Motor 11 is connected with power supply, and machine shaft directly drives and connects worm screw 13, and worm screw 13 drives and connects worm gear 12; Clutch fixed part 21 and drive sprocket 41 coaxial being fixedly mounted on the power transmission shaft 5 are enclosed within on the power transmission shaft 5 to 22 loose fits of clutch movable part, and clutch movable part 22 forms with power transmission shaft 5 and circumferentially can relatively rotate, axial relatively-movable matching relationship; Worm gear 12 is installed in rotation on the power transmission shaft 5, and worm gear 12 forms axially with power transmission shaft 5 and upward fixes, relatively turnable matching relationship makes progress in week;
The periphery of described nut 33 is formed with external tooth, and nut 33 utilizes this external tooth and travelling gear 44 to form and is connected with a joggle, and as shown in Figure 1, travelling gear 44 and driven sprocket 43 coaxial fixedlying connected, drive sprocket 41 drive by chain 42 and connect driven sprocket 43;
Fig. 3, shown in Figure 4, clutch movable part 22 are installed in worm gear 12 back, and clutch fixed part 21 is installed in clutch movable part 22 back, are provided with the spring 23 of applied thrust between clutch fixed part 21 and clutch movable part 22;
Fig. 3, Fig. 4, Fig. 6, Fig. 7, shown in Figure 8, trailing flank at worm gear is formed with the flat bottomed recess 121 of two arcs, the wedged bottom groove 122 of two arcs, article two, arc flat bottomed recess 121 is about the distribution that is centrosymmetric of the center of worm gear, article two, also about the distribution that is centrosymmetric of the center of worm gear, the radian of two arc flat bottomed recess 121 equals the radian of two arc wedged bottom grooves 122 to arc wedged bottom groove 122; (the A point among Fig. 6, Fig. 9 and C point) shoals the groove depth of arc wedged bottom groove 122 gradually to two ends by middle (the B point among Fig. 6, Fig. 9), and (the D point among Fig. 6, Fig. 7 and F point) remains unchanged to two ends and the groove depth of the flat bottomed recess 121 of arc is by middle (the E point among Fig. 6, Fig. 7); The leading flank of clutch movable part 22 is formed with two drive blocks 221, and these two drive blocks 221 embed respectively in the arc flat bottomed recess 121 of worm gear trailing flank; Insert a ball 6 respectively in each bar arc wedged bottom groove 122 of worm gear, the diameter of ball 6 equals the groove depth (being the degree of depth at B point place among Fig. 6 and Fig. 9) of worm gear wedged bottom groove 122 middle parts, and the two ends groove depth of the arc wedged bottom groove of worm gear (being the degree of depth at A, C point place among Fig. 6 and Fig. 9) is equivalent to half of diameter of ball 6.
Fig. 1, Fig. 2, shown in Figure 10, the position that is provided with first sensitive switch, 7, the first sensitive switches 7 on the front end next door of screw rod 5 cooperates with the position of wind 31 rear ends; Also be provided with second sensitive switch on cabinet, the position of second sensitive switch cooperates with the position of cabinet door; Motor power is connected to motor by first sensitive switch, second sensitive switch.
Above-described embodiment course of work and principle are as follows:
When needs motorized motions circuit breaker 8 advances or retreats, only need starter motor 11, driving worm gear 12 worm screws 13 rotates, the worm gear 12 of high speed rotating will force ball 6 to be rolled to a wherein end of arc wedged bottom groove 122, as Fig. 6, shown in Figure 9, the thrust that ball 6 will overcome spring 23 directly drives clutch movable part 22 and moves (displacement equals the radius of ball) backward, the protuberance 220 of clutch movable part is with the recess 210 of embeddeding clutch fixed part, so clutch engagement, as shown in Figure 3, simultaneously, the drive block 221 of clutch movable part will be positioned at a wherein end of the arc flat bottomed recess 121 of worm gear, as Fig. 6, shown in Figure 7, so worm gear 12 will drive 22 rotations of clutch movable part, clutch movable part 22 will drive 21 rotations of clutch fixed part, clutch fixed part 21 will drive power transmission shaft 5 rotations, power transmission shaft 5 will drive drive sprocket 41 rotations, drive sprocket 41 will drive driven sprocket 43 rotations by chain 42, driven sprocket 43 will drive travelling gear 44 rotations, travelling gear 44 drives nut 33 rotations, make nut 33 with respect to screw rod 32 lengthwise movements, so drive circuit breaker 8 lengthwise movements, the motor 11 of circuit breaker bottom, worm gear 12, worm screw 13, jaw clutch 2, power transmission shaft 5, drive sprocket 41, driven sprocket 43, chain 42, travelling gear 44 is with synchronous lengthwise movement;
When needs manual actuation circuit breaker 8 advances or retreats, only need wind 31 is loaded onto driving sleeve 52 front ends, slowly shake wind 31 a little, driving sleeve 52 and power transmission shaft 5 rotate synchronously, make the clutch 2(that is in engagement originally comprise clutch fixed part 21 and clutch movable part 22) turn over an angle, when ball 6 is being followed rolling in arc flat bottomed recess 121, the lengthwise position of ball 6 slowly moves forward, when ball 6 is rolled to arc flat bottomed recess intermediate point (B point as shown in Figure 8), clutch movable part 22 moves forward under spring 23 thrust, so the protuberance 220 of clutch movable part 22 will withdraw from the recess 210 of clutch fixed part, clutch separation, as shown in Figure 4; Then, wind 31 is extracted from driving sleeve front end 51, and be inserted in the front end 320 of screw rod 32, can utilize wind 31 to carry out manual actuation this moment, and its driving process is consistent with the conventional manual pattern.When screw front end 320 is inserted in wind 32 rear ends, the button pressurized of first sensitive switch 7 and disconnecting, so motor 11 can't rotate; When manual actuation circuit breaker 8 to when the target location, wind 31 is extracted from screw front end, make first sensitive switch, 7 closures.
In addition, when the cabinet door was opened, second sensitive switch disconnected, and can not carry out electric operating by motor, only closed, made the button pressurized of second sensitive switch and when closed, just can carry out electric operating at the cabinet door.
In the present specification, with screw rod axially be fore-and-aft direction (vertically), being front end near an end of wind, when certain member in the cabinet (for example circuit breaker) when travelling forward, its lengthwise position is more and more near wind.
Claims (3)
1. electrodynamic type vacuum circuit-breaker Drive Structure, comprise switch cabinet body, switch cabinet body is provided with the cabinet door, be provided with circuit breaker in switch cabinet body inside, holder, screw rod, the cabinet outside is provided with wind, circuit breaker can be installed on the holder movably forward and backward, screw axial is fixed and circumferentially is installed in rotation in the holder, the circuit breaker bottom is fixedly connected with nut, nut sleeve is connected on the screw rod, the rear end of wind is provided with splined hole, the front end of screw rod is provided with spline, the splined hole movable sleeve of the rear end of wind is inserted in the spline outside of screw front end, it is characterized in that: in the circuit breaker bottom motor is installed also, worm gear, worm screw, jaw clutch, power transmission shaft, drive sprocket, driven sprocket, chain, travelling gear, jaw clutch comprises clutch fixed part and clutch movable part, and the clutch fixed part is provided with recess, the clutch movable part be provided with can be chimeric with this recess protuberance; Be rotatably mounted with driving sleeve at holder, driving sleeve and power transmission shaft keyed jointing, both are movable in the axial direction and upwards fixing in week, and the front end of driving sleeve also is provided with the spline that cooperates with the wind splined hole; Motor is connected with power supply, and machine shaft directly drives and connects worm screw, and worm drive connects worm gear; The clutch fixed part is fixedly mounted on the power transmission shaft with drive sprocket is coaxial, is enclosed within on the power transmission shaft to the loose fit of clutch movable part, and clutch movable part and power transmission shaft form circumferentially and can relatively rotate, axial relatively-movable matching relationship; Worm gear is installed in rotation on the power transmission shaft, and worm gear and power transmission shaft form axially and upward fix, relatively turnable matching relationship makes progress in week;
The periphery of described nut is formed with external tooth, and nut utilizes this external tooth and travelling gear to form and is connected with a joggle, and travelling gear is fixedlyed connected with driven sprocket is coaxial, and drive sprocket connects driven sprocket by chain drive; The clutch movable part is installed in the worm gear back, and the clutch fixed part is installed in clutch movable part back, is provided with the spring of applied thrust between clutch fixed part and clutch movable part;
Be formed with the flat bottomed recess of two arcs, the wedged bottom groove of two arcs at the trailing flank of worm gear, the groove depth of arc wedged bottom groove is shoaled to two ends gradually by the centre, and the groove depth of the flat bottomed recess of arc is remained unchanged to two ends by the centre; Article two, the arc flat bottomed recess is about the distribution that is centrosymmetric of the center of worm gear, and also about the distribution that is centrosymmetric of the center of worm gear, the radian of two arc flat bottomed recess equals the radian of two arc wedged bottom grooves for two arc wedged bottom grooves; The leading flank of clutch movable part is formed with two drive blocks, and these two drive blocks embed respectively in the arc flat bottomed recess of worm gear trailing flank; Insert a ball respectively in each bar arc wedged bottom groove of worm gear, the diameter of ball equals the groove depth of worm gear wedged bottom groove middle part.
2. electrodynamic type vacuum circuit-breaker Drive Structure according to claim 1 is characterized in that: the two ends groove depth of the arc wedged bottom groove of worm gear is equivalent to half of diameter of ball.
3. electrodynamic type vacuum circuit-breaker Drive Structure according to claim 1 is characterized in that: the front end next door at screw rod is provided with first sensitive switch, and the position of first sensitive switch cooperates with the position of wind rear end; Also be provided with second sensitive switch on cabinet, the position of second sensitive switch cooperates with the position of cabinet door; Motor power is connected to motor by first sensitive switch, second sensitive switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320137815 CN203166388U (en) | 2013-03-25 | 2013-03-25 | Electric vacuum circuit breaker driving structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320137815 CN203166388U (en) | 2013-03-25 | 2013-03-25 | Electric vacuum circuit breaker driving structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203166388U true CN203166388U (en) | 2013-08-28 |
Family
ID=49027548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320137815 Expired - Lifetime CN203166388U (en) | 2013-03-25 | 2013-03-25 | Electric vacuum circuit breaker driving structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203166388U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655503A (en) * | 2016-11-24 | 2017-05-10 | 国网浙江省电力公司温州供电公司 | Column switch with opened and closed Bluetooth function |
| CN110797786A (en) * | 2019-11-27 | 2020-02-14 | 山西汾西电气有限公司 | Manual-automatic propelled circuit breaker isolation body in mining high-voltage power distribution cabinet |
| CN113950729A (en) * | 2019-06-21 | 2022-01-18 | Abb瑞士股份有限公司 | Medium voltage circuit breaker switching pole |
-
2013
- 2013-03-25 CN CN 201320137815 patent/CN203166388U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655503A (en) * | 2016-11-24 | 2017-05-10 | 国网浙江省电力公司温州供电公司 | Column switch with opened and closed Bluetooth function |
| CN106655503B (en) * | 2016-11-24 | 2023-08-15 | 国网浙江省电力公司温州供电公司 | Bluetooth function switch on post that opens and shuts |
| CN113950729A (en) * | 2019-06-21 | 2022-01-18 | Abb瑞士股份有限公司 | Medium voltage circuit breaker switching pole |
| US12087526B2 (en) | 2019-06-21 | 2024-09-10 | Abb Schweiz Ag | Medium voltage circuit breaker switching pole |
| CN110797786A (en) * | 2019-11-27 | 2020-02-14 | 山西汾西电气有限公司 | Manual-automatic propelled circuit breaker isolation body in mining high-voltage power distribution cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |