CN207199524U - Transmission limit device - Google Patents

Transmission limit device Download PDF

Info

Publication number
CN207199524U
CN207199524U CN201720433924.XU CN201720433924U CN207199524U CN 207199524 U CN207199524 U CN 207199524U CN 201720433924 U CN201720433924 U CN 201720433924U CN 207199524 U CN207199524 U CN 207199524U
Authority
CN
China
Prior art keywords
driving
motor
stop
limit
block
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.)
Active
Application number
CN201720433924.XU
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
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
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, Pinggao Group Co Ltd filed Critical Beijing Ping Da Da Technology Development Co Ltd
Priority to CN201720433924.XU priority Critical patent/CN207199524U/en
Application granted granted Critical
Publication of CN207199524U publication Critical patent/CN207199524U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model provides a kind of transmission limit device, including driving member, one end of driving member is used to be used for the motor output shaft key connection with 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, finite place piece is set on the outer peripheral face of driving member, is provided with the endoporus of fixed cover and coordinates with locating part block to limit the stop part of the rotational limitation of driving member.The beneficial effects of the utility model:When motor drives driving member rotation, stop part can coordinate with locating part block, limit the rotational limitation of driving member, make motor after by the positive and negative divide-shut brake angle for being conveyed to set, under stop part effect, ensure that it can only be moved in limited corner, prevent the overshoot caused by overshoot, maloperation, electromagnetic interference etc. from hitting arc-chutes inside damage high-voltage switch gear, ensured safe and stable, the reliability service of high-voltage switch gear.

Description

Transmission limit device
Technical field
It the utility model is related 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 directly utilize the new actuating of motor driving primary cut-out in recent years Mechanism.Application publication number is CN104701104A, and data of publication of application is that 2015.06.10 Chinese invention patent application discloses A kind of primary cut-out, the breaker include 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 transmission main shaft is provided 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 drive the action of three-phase transmission crank arm, at this moment connecting lever axle exports with motor The connecting portion of axle is located at the outside of Crankarm box, generally use spline housing or ring flange(That is transmission device)The two is connected to Together., can be by motor although transmission and connection function can be played using this transmission device of the prior art Power passes to insulated tension pole, but does not have position limitation protection function, i.e., the breaking-closing operating of breaker can only rely on drive completely Dynamic motor forward or reverse certain angle controls, then just need by the rotating forward of control system and algorithm to motor and Reversion is regulated and controled, therefore control cabinet is generally also associated with motor.
But when the breaking-closing operating of breaker is realized in motor rotating, within the actuation time of Millisecond 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, larger hidden danger to power grid security be present.
Utility model content
The purpose of this utility model, which is to provide, a kind of can avoid overshoot from hitting, improve high-voltage switch gear safety in operation Transmission limit device.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical scheme that:
A kind of transmission limit device, including driving member, one end of driving member are used for and the connecting lever axle in Crankarm box Drive connection, the other end are used for the motor output shaft key connection with motor, and the outer cover of driving member is provided with fixed cover, fixed One end of set is used to be fixed on Crankarm box or motor, sets finite place piece on the outer peripheral face of driving member, fixed cover it is interior It is provided with hole and coordinates with the locating part block to limit the stop part of the rotational limitation of driving member.
The locating part and stop part are in fan-shaped block.
The driving member is used for one end of connecting lever axle drive connection 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 utility model are:Due to setting finite place piece on the outer peripheral face of driving member, fixed cover it is interior Stop part is provided with hole, 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 stop part In the presence of, ensure that it can only be moved in limited corner, prevent the mistake caused by overshoot, maloperation, electromagnetic interference etc. Arc-chutes inside damage high-voltage switch gear are hit in collision, have ensured safe and stable, the reliability service of high-voltage switch gear, eliminate power network peace Full hidden danger.
Brief description of the drawings
Fig. 1 is that the transmission limit device in the utility model applies the structural representation on high-voltage switch gear;
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 as shown in Fig. 1 ~ Fig. 3, apply on high-voltage switch gear by the transmission limit device, 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 key connection 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, and splined shaft, driving member 42 are provided with corresponding connecting lever axle 21 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 The dowel hole 44 of groove, keyway is also equipped with corresponding motor output shaft 31, and motor output shaft 31 passes through flat key with driving member 42 Structure connects.
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 have certain length in sector.Limited block 45 is installed with the outer peripheral face of driving member 42, it is spacing Block 45 is also in sector, and have certain length, when driving member 42 just goes to certain angle, limited block 45 and stop block 46 End face block coordinates, same when driving member 42 is inverted to necessarily so as to limit the rotational limitation of driving member 42 in this direction 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, the corresponding length of limited block 45 and stop block 46 can be set.
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 rotates, 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 cooperation of the block of position block 45 and stop block 46 is 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, prevent the overshoot caused by overshoot, maloperation, electromagnetic interference etc. from hitting arc-chutes inside damage high-voltage switch gear, ensure Safe and stable, the reliability service of high-voltage switch gear, eliminate power grid security hidden danger.
Coordinated between driving member 42 and motor 3 using flat key structure, ensure that accuracy of alignment, it is inclined to avoid motor The heart, and flat key structure is also easy to process and assembled.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 for driving member 42 in the assembling with motor output shaft 31, the ledge structure can To play position-limiting action, so as to convenient for assembly.
Transmission limit device of the present utility model can not only realize transmission but also can realize spacing, and device volume is small, again Measure light, simple in construction, reliable and stable, the operational reliability of high-voltage switch gear can be effectively improved, there are the potentiality promoted on a large scale, Vital effect is played in safe operation to 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 by flat key structure or connected by flange 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, for example 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 (2)

  1. A kind of 1. 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 for motor output shaft key connection with motor, the outer cover of driving member is provided with solid Fixed set, one end of fixed cover are used to be fixed on Crankarm box or motor, and finite place piece is set on the outer peripheral face of driving member, Gu Surely it is provided with the endoporus covered and coordinates with the locating part block to limit the stop part of the rotational limitation of driving member, it is described spacing Part and stop part are in fan-shaped block, the driving member be used for and one end of connecting lever axle drive connection for splined hole, for One end of motor output shaft connection is the dowel hole for being provided with keyway.
  2. 2. transmission limit device according to claim 1, it is characterised in that:The aperture of the dowel hole is more than splined hole Aperture.
CN201720433924.XU 2017-04-24 2017-04-24 Transmission limit device Active CN207199524U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720433924.XU CN207199524U (en) 2017-04-24 2017-04-24 Transmission limit device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720433924.XU CN207199524U (en) 2017-04-24 2017-04-24 Transmission limit device

Publications (1)

Publication Number Publication Date
CN207199524U true CN207199524U (en) 2018-04-06

Family

ID=61793117

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720433924.XU Active CN207199524U (en) 2017-04-24 2017-04-24 Transmission limit device

Country Status (1)

Country Link
CN (1) CN207199524U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107068475A (en) * 2017-04-24 2017-08-18 平高集团有限公司 A kind of transmission limit device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107068475A (en) * 2017-04-24 2017-08-18 平高集团有限公司 A kind of transmission limit device

Similar Documents

Publication Publication Date Title
CN207199524U (en) Transmission limit device
CN107068475A (en) A kind of transmission limit device
CN207116306U (en) The spacing high-voltage switch gear of finite angle
CN206774444U (en) Transmission limit device used for high-voltage switch
CN107068474A (en) A kind of spacing high-voltage switch gear of finite angle
CN105864322A (en) Centrifugal brake mechanism of motor
CN107068473A (en) A kind of transmission limit device used for high-voltage switch
CN104701104A (en) High-voltage circuit breaker
CN206402018U (en) A kind of motor of new adjustable support
CN104900442B (en) A kind of earthed switch being combined with lightning arrester and its method
CN101807486A (en) Manual brake separating mechanism for high voltage switch
CN103178689B (en) Torque-limitation type permanent magnetic coupler
CN203932794U (en) Electric power system gas insulated combined electric appliance equipment divide-shut brake stroke monitoring system
CN206116284U (en) Magnetic force electrical switching
CN206023463U (en) A kind of flywheel gear of stable generator rotating speed
CN202650874U (en) Grounding switch operating crank arm
CN207217399U (en) Permanent magnet and drive rod integral type outdoor vacuum circuit breaker operating mechanism
CN107700563A (en) A kind of band is spacing and the accessory connector of variable damping function
CN107230593B (en) A kind of elastic energy storage transmission mechanism
CN206040567U (en) Elastic energy storage drive mechanism
CN204332862U (en) A kind of primary cut-out
CN204144151U (en) Vacuum circuit-breaker top interlock
CN209237306U (en) The rotating mechanism of game machine
CN103899478B (en) A kind of wind power generating set mechanical overspeed protective device
CN210378816U (en) Isolation and grounding operation mechanism of solid insulation cabinet

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant