CN107068475A - A kind of transmission limit device - Google Patents

A kind of transmission limit device Download PDF

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Publication number
CN107068475A
CN107068475A CN201710272424.7A CN201710272424A CN107068475A CN 107068475 A CN107068475 A CN 107068475A CN 201710272424 A CN201710272424 A CN 201710272424A CN 107068475 A CN107068475 A CN 107068475A
Authority
CN
China
Prior art keywords
driving
motor
stop
block
fixed cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710272424.7A
Other languages
Chinese (zh)
Inventor
邓渊
吴军辉
金光耀
程铁汉
高树同
唐诚
韩书谟
王俊
高杨
刘恒
杨志勇
赵芳帅
庞亚娟
贺小维
张培园
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Ping Da Da Technology Development Co Ltd
State Grid Corp of China SGCC
State Grid Hubei Electric Power Co Ltd
State Grid Pinggao Group Co Ltd
Original Assignee
Beijing Ping Da Da Technology Development Co Ltd
State Grid Corp of China SGCC
State Grid Hubei Electric Power Co Ltd
State Grid Pinggao Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Ping Da Da Technology Development Co Ltd, State Grid Corp of China SGCC, State Grid Hubei Electric Power Co Ltd, State Grid Pinggao Group Co Ltd filed Critical Beijing Ping Da Da Technology Development Co Ltd
Priority to CN201710272424.7A priority Critical patent/CN107068475A/en
Publication of CN107068475A publication Critical patent/CN107068475A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02Details
    • H01H33/28Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/36Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02Details
    • H01H33/42Driving mechanisms

Abstract

The invention provides a kind of transmission limit device, including driving member, one end of driving member is used to be used to be connected with the motor output shaft key of motor with the connecting lever axle drive connection in Crankarm box, the other end, the outer cover of driving member is provided with fixed cover, one end of fixed cover is used to be fixed on Crankarm box or motor, set to be provided with finite place piece, the endoporus of fixed cover on the outer peripheral face of driving member and coordinate with locating part block with the stop part for the rotational limitation for limiting driving member.Beneficial effects of the present invention:When motor drives driving member rotation, stop part can coordinate with locating part block, so as to limit the rotational limitation of driving member, so that motor is after by the positive and negative divide-shut brake angle for being conveyed to set, in the presence of stop part, ensure that it can only be moved in limited corner, prevent from hitting due to overshoot caused by overshoot, maloperation, electromagnetic interference etc. and damage arc-chutes inside high-voltage switch gear, ensured safe and stable, the reliability service of high-voltage switch gear.

Description

A kind of transmission limit device
Technical field
The present invention relates to a kind of transmission limit device.
Background technology
Traditional high-voltage breaker operation mechanism fault rate is high, stability is poor, complicated in mechanical structure, to the peace of power system Row for the national games causes larger potential safety hazard, therefore proposes the new actuating that primary cut-out is directly driven using motor in recent years Mechanism.Application publication number is CN104701104A, and data of publication of application discloses for 2015.06.10 Chinese invention patent application A kind of primary cut-out, the breaker includes A, B, C three-phase insulator and the Crankarm box being arranged on below each phase insulator, driving electricity External splines structure, motor output shaft and the driving crank in Crankarm box are provided with the motor output shaft of machine(That is transmission crank arm)It is logical Spline connection is crossed, the upper end of transmission crank arm is connected with insulated tension pole, the other end of insulated tension pole and the moving contact phase in arc-chutes Even.When motor output shaft rotates, transmission crank arm will be driven to rotate, and then move up and down insulated tension pole, realize that divide-shut brake is grasped Make, while being provided with transmission main shaft between the transmission crank arm of adjacent Crankarm box(That is connecting lever axle), so as to realize three-phase ganged.
The motor output shaft of this motor is to be directly protruding into Crankarm box to be connected with transmission crank arm, in the prior art Some connecting lever axles are, also cross three-phase Crankarm box, directly to drive the action of three-phase transmission crank arm, at this moment connecting lever axle is exported with motor The connecting portion of axle is located at the outside of Crankarm box, generally uses spline housing or ring flange(That is transmission device)The two is connected to Together., can be by motor using this transmission device of the prior art, although transmission and connection function can be played Power passes to insulated tension pole, but does not have the breaking-closing operating of position limitation protection function, i.e. breaker completely can only be by drive Dynamic motor forward or reverse certain angle is controlled, then be accomplished by by control system and algorithm to the rotating forward of motor and Reversion is regulated and controled, therefore control cabinet is generally also associated with motor.
But,, within the actuation time of Millisecond when the breaking-closing operating of breaker is realized in motor rotating Complete the process of startup-acceleration-at the uniform velocity-deceleration-stopping, it is easy to causing overshoot phenomenon, cause separating brake to rebound and shake, influence Break performance and arc-chutes life-span, while motor is also easily by the strong electromagnetic under hyperbaric environment, cause malfunction or It is not normal, cause overshoot to be hit, be unfavorable for the safe and stable operation of high-voltage switch gear, there is larger hidden danger to power grid security.
The content of the invention
It is an object of the invention to provide a kind of transmission that can be avoided overshoot shock, improve high-voltage switch gear safety in operation Stopping means.
In order to solve the above-mentioned technical problem, the present invention is adopted the following technical scheme that:
A kind of transmission limit device, including driving member, one end of driving member are used to be driven with the connecting lever axle in Crankarm box Connection, the other end are used to be connected with the motor output shaft key of motor, and the outer cover of driving member is provided with fixed cover, fixed cover One end is used to be fixed on Crankarm box or motor, the outer peripheral face of driving member to set finite place piece, in the endoporus of fixed cover It is provided with and coordinates with the locating part block with the stop part for the rotational limitation for limiting driving member.
The locating part and stop part are in fan-shaped block.
One end for being used to be connected with connecting lever axle of the driving member is for splined hole, for what is be connected with motor output shaft One end is the dowel hole for being provided with keyway.
The aperture of the dowel hole is more than the aperture of splined hole.
The beneficial effects of the present invention are:Due to being set on the outer peripheral face of driving member in finite place piece, the endoporus of fixed cover Stop part is provided with, therefore when motor drives driving member rotation, stop part can coordinate with locating part block, so as to limit The rotational limitation of driving member so that motor is after by the positive and negative divide-shut brake angle for being conveyed to set, in the work of stop part Under, it is ensured that it can only be moved in limited corner, prevent from colliding due to crossing caused by overshoot, maloperation, electromagnetic interference etc. Arc-chutes inside damage high-voltage switch gear are hit, safe and stable, the reliability service of high-voltage switch gear has been ensured, has eliminated power grid security hidden Suffer from.
Brief description of the drawings
Fig. 1 applies the structural representation on high-voltage switch gear for the transmission limit device in the present invention;
Fig. 2 is the structural representation of transmission limit device in Fig. 1;
Fig. 3 is Fig. 2 right view.
In figure:1. arc-chutes;2. Crankarm box;21. connecting lever axle;3. motor;31. motor output shaft;4. transmission is spacing Device;41. fixed cover;42. driving member;43. splined hole;44. dowel hole;45. limited block;46. stop block;5. post insulator Son.
Embodiment
One embodiment of transmission limit device is as shown in Fig. 1 ~ Fig. 3, and the transmission limit device is applied on high-voltage switch gear, High-voltage switch gear also includes arc-chutes 1, support insulator 5, Crankarm box 2, motor 3, and transmission limit device 4 includes driving member 42nd, fixed cover 41, the rolling assembling of driving member 42 is in the inside of fixed cover 41.One end of driving member 42 and the motor of motor 3 The connection of the key of output shaft 31, the other end are connected with being arranged in Crankarm box 2 and stretching out the connecting lever axle 21 of Crankarm box 2, driving member 42 one end being connected with connecting lever axle 21 is provided with splined hole 43, corresponding connecting lever axle 21 and is provided with splined shaft, driving member 42 It is connected with connecting lever axle 21 by spline structure.One end being connected with motor output shaft 31 of driving member 42 is to offer flat key Keyway is also equipped with the dowel hole 44 of groove, corresponding motor output shaft 31, motor output shaft 31 passes through flat key with driving member 42 Structure is connected.
In use, one end of fixed cover 41 is weldingly fixed on Crankarm box 2, block is installed with the inner peripheral surface of fixed cover 41 Block 46, the stop block 46 has certain length in sector.Limited block 45 is installed with the outer peripheral face of driving member 42, it is spacing Block 45 has certain length also in sector, when driving member 42 just goes to certain angle, limited block 45 and stop block 46 End face block coordinates, so that the rotational limitation of driving member 42 in this direction is limited, it is same when driving member 42 is inverted to necessarily During angle, the other end block of limited block 45 and stop block 46 coordinates, so as to limit the rotation of driving member 42 in this direction The limit.The length of limited block 45 and stop block 46 is corresponding with the divide-shut brake angle of high-voltage switch gear, according to different divide-shut brakes Angle, can set the corresponding length of limited block 45 and stop block 46.
The operation principle of transmission limit device is:When motor 3 is connected to divide-shut brake instruction, driven by flat key structure Driving member 42 is rotated, and driving member 42 drives connecting lever axle 21 to rotate by splined hole 43, and connecting lever axle 21 drives the biography in Crankarm box 2 again Dynamic connecting lever(Not shown in figure)Rotate, and then drive the insulated tension pole in support insulator 5(Not shown in figure)On move down It is dynamic, so as to realize the breaking-closing operating of arc-chutes 1.During driving member 42 is with motor output shaft forward or reverse, by limiting The block of position block 45 and stop block 46 coordinates spacing to carry out effective divide-shut brake to it, motor 3 is being had control cabinet(Figure Not shown in)On the basis of being regulated and controled, it is moved in limited corner further through mechanical structure, realize double guarantors Danger, is prevented from being hit due to overshoot caused by overshoot, maloperation, electromagnetic interference etc. and damages arc-chutes inside high-voltage switch gear, ensured Safe and stable, the reliability service of high-voltage switch gear, eliminate power grid security hidden danger.
Coordinated using flat key structure between driving member 42 and motor 3, it is ensured that accuracy of alignment, it is to avoid motor is inclined The heart, and flat key structure is also easy to process and assembles.Meanwhile, the aperture of dowel hole 44 is greater than the aperture of splined hole 43, this Sample just forms a ledge structure therebetween, and driving member 42 is in the assembling with motor output shaft 31, and the ledge structure can To play position-limiting action, so that convenient for assembly.
The transmission limit device of the present invention can not only realize transmission but also can realize spacing, and device volume is small, weight Gently, it is simple in construction, reliable and stable, the operational reliability of high-voltage switch gear can be effectively improved, it is right with the potentiality promoted on a large scale Vital effect is played in the safe operation of high-tension switch gear.
In the other embodiment of transmission limit device:The aperture of dowel hole is also smaller than the aperture of splined hole;Driving member Can also be connected or connected by flange by flat key structure with connecting lever axle;Can also between driving member and motor output shaft It is spline connection;Locating part and stop part can not be fan-shaped block, such as locating part can be two rectangles being spaced apart Block, stop part can also be two rectangular blocks being spaced apart;One end of fixed cover can also be fixed on the shell of motor On.

Claims (4)

1. a kind of transmission limit device, it is characterised in that:Including driving member, one end of driving member be used for in Crankarm box The drive connection of connecting lever axle, the other end be used to be connected with the motor output shaft key of motor, the outer cover of driving member is provided with consolidating Fixed set, one end of fixed cover is used to be fixed on Crankarm box or motor, the outer peripheral face of driving member to set finite place piece, Gu Surely it is provided with and coordinates with the locating part block with the stop part for the rotational limitation for limiting driving member in the endoporus covered.
2. transmission limit device according to claim 1, it is characterised in that:The locating part and stop part are in secter pat Shape.
3. transmission limit device according to claim 1 or 2, it is characterised in that:The driving member be used for and connecting lever axle One end of drive connection is that splined hole, one end for being connected with motor output shaft are the dowel hole for being provided with keyway.
4. transmission limit device according to claim 3, it is characterised in that:The aperture of the dowel hole is more than splined hole Aperture.
CN201710272424.7A 2017-04-24 2017-04-24 A kind of transmission limit device Pending CN107068475A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710272424.7A CN107068475A (en) 2017-04-24 2017-04-24 A kind of transmission limit device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710272424.7A CN107068475A (en) 2017-04-24 2017-04-24 A kind of transmission limit device

Publications (1)

Publication Number Publication Date
CN107068475A true CN107068475A (en) 2017-08-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710272424.7A Pending CN107068475A (en) 2017-04-24 2017-04-24 A kind of transmission limit device

Country Status (1)

Country Link
CN (1) CN107068475A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108122709A (en) * 2017-11-10 2018-06-05 平高集团有限公司 A kind of adjustable transmission mechanism of initial position and the breaker using the mechanism

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070293325A1 (en) * 2006-06-20 2007-12-20 Nobuyuki Matsumoto Coupling apparatus, motor device, and wiper motor device
CN201207143Y (en) * 2008-05-22 2009-03-11 中国船舶重工集团公司第七一七研究所 Large scope angle position limiting device
CN202301558U (en) * 2011-11-11 2012-07-04 马中原 Clutch and variable speed gear thereof
CN102678217A (en) * 2011-03-16 2012-09-19 德国海利特有限公司 Oscillating motor phaser
CN104701104A (en) * 2014-12-31 2015-06-10 国家电网公司 High-voltage circuit breaker
CN105513913A (en) * 2015-12-07 2016-04-20 中国电力科学研究院 High-voltage circuit breaker adopting built-in type operating mechanism
CN205377548U (en) * 2016-01-26 2016-07-06 深圳市道通智能航空技术有限公司 Electrical machine stop device and cloud platform thereof
CN106504915A (en) * 2016-10-31 2017-03-15 平高集团有限公司 A kind of isolated chopper
CN207199524U (en) * 2017-04-24 2018-04-06 平高集团有限公司 Transmission limit device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070293325A1 (en) * 2006-06-20 2007-12-20 Nobuyuki Matsumoto Coupling apparatus, motor device, and wiper motor device
CN201207143Y (en) * 2008-05-22 2009-03-11 中国船舶重工集团公司第七一七研究所 Large scope angle position limiting device
CN102678217A (en) * 2011-03-16 2012-09-19 德国海利特有限公司 Oscillating motor phaser
CN202301558U (en) * 2011-11-11 2012-07-04 马中原 Clutch and variable speed gear thereof
CN104701104A (en) * 2014-12-31 2015-06-10 国家电网公司 High-voltage circuit breaker
CN105513913A (en) * 2015-12-07 2016-04-20 中国电力科学研究院 High-voltage circuit breaker adopting built-in type operating mechanism
CN205377548U (en) * 2016-01-26 2016-07-06 深圳市道通智能航空技术有限公司 Electrical machine stop device and cloud platform thereof
CN106504915A (en) * 2016-10-31 2017-03-15 平高集团有限公司 A kind of isolated chopper
CN207199524U (en) * 2017-04-24 2018-04-06 平高集团有限公司 Transmission limit device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108122709A (en) * 2017-11-10 2018-06-05 平高集团有限公司 A kind of adjustable transmission mechanism of initial position and the breaker using the mechanism

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Application publication date: 20170818

RJ01 Rejection of invention patent application after publication