CN102723676A - Electric chassis vehicle for circuit breaker - Google Patents

Electric chassis vehicle for circuit breaker Download PDF

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Publication number
CN102723676A
CN102723676A CN2012100852407A CN201210085240A CN102723676A CN 102723676 A CN102723676 A CN 102723676A CN 2012100852407 A CN2012100852407 A CN 2012100852407A CN 201210085240 A CN201210085240 A CN 201210085240A CN 102723676 A CN102723676 A CN 102723676A
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CN
China
Prior art keywords
motor assembly
screw mandrel
sprocket wheel
sucker
motor
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Granted
Application number
CN2012100852407A
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Chinese (zh)
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CN102723676B (en
Inventor
汤民
F·J·马尚
B·R·莱齐亚
鲍丽华
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Eaton Electric Ltd
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Eaton Electric Ltd
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Application filed by Eaton Electric Ltd filed Critical Eaton Electric Ltd
Priority to CN201210085240.7A priority Critical patent/CN102723676B/en
Publication of CN102723676A publication Critical patent/CN102723676A/en
Priority to PCT/CN2013/073009 priority patent/WO2013143415A1/en
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Publication of CN102723676B publication Critical patent/CN102723676B/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B11/00Switchgear having carriage withdrawable for isolation
    • H02B11/12Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
    • H02B11/127Withdrawal mechanism

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention relates to an electric chassis vehicle for a circuit breaker. The electric chassis vehicle comprises a static frame and a movable frame which is moveable relative to the static frame. A lead screw is installed on the static frame, and a lead screw block which is fixed with the movable frame is assembled on the lead screw. A motor assembly is also installed on the movable frame, rotation of the motor assembly is transferred to the lead screw through a transmission mechanism so as to drive the lead screw block, the movable frame and the motor assembly to move along the axial direction of the lead screw, and an electromagnetic clutch is installed between the motor assembly and the transmission mechanism.

Description

The electronic chassis of circuit breaker
Technical field
The present invention relates to a kind of circuit breaker chassis in the electric power system, the electronic chassis of especially a kind of circuit breaker.
Background technology
In existing insulated switch cabinet; Can realize easily that in order to make vacuum circuit-breaker (propelling is meant from test position and is advanced to the service position for propelling and exit function; Withdraw from be meant from the service position be withdrawn into test position); Chassis of general employing is carried vacuum circuit-breaker, and through moving ahead on the track of driving wheel in switch cubicle of installing on the chassis or retreating.For realizing the motion of chassis in switch cubicle, screw mandrel can be set, sheathed one screw that is fixed on the sole on the screw mandrel on chassis; With taper knob upper screw rod end; Rotary screw rod makes screw drive sole and moves forward and backward, thereby realizes the propelling of circuit breaker chassis and withdraw from.This chassis is because adopt the manual mode of dependent manual operation handle, and operating efficiency is low, does not conform to the development of power automation.
In other a kind of switch cubicle, increased the electric operating module on the chassis, wherein; Motor assembly is installed on the chassis; Through just the changeing of motor assembly, the propelling of controlling chassis of reversing, withdraw from motion, and then realize the motorized and the automation of chassis motion, be called electric chassis truck.Electric chassis truck generally comprises the quiet vehicle frame of chassis, and chassis motor-car frame is provided with motor assembly, clutch and screw mandrel, and motor assembly is connected with clutch, and the other end of clutch connects screw mandrel.Manual priority device, test position switching device shifter and the service position switching device shifter of promising security consideration also are set on the chassis.The manual priority device has sensitive switch and the drive link that is installed in the sensitive switch below, and the other end of drive link is connected with screw mandrel.When carrying out manual operation, the sensitive switch on the manual priority device breaks off at once, cuts off the motor assembly loop, thereby can't carry out electric operating.Can adopt the Bevel Gear Transmission mode between motor assembly in this chassis and the screw mandrel; And be furnished with special clutch, when clamping stagnation occurring, clutch is thrown off automatically; Motor assembly idle running, and rely on the Current Control electric handcart of driver module to automatically revert to " test " position.When electric operating, leading screw is motionless, and bevel gear is rotated; When manual operation, leading screw rotates, and bevel gear is motionless.
In the prior art, electric chassis truck all adopts mechanical clutch.The weak point that the electric chassis truck of mechanical clutch is installed is, because the mechanical clutch part is many, requirement on machining accuracy is high, thereby causes the electric chassis truck size very big, and reliability is not enough.In addition, because the switch cubicle finite volume, the size of electric chassis truck and clutch thereof can not design too greatly.Simultaneously, because voltage is high more, the insulating requirements in the switch cubicle is also high, thus the also corresponding increase of the volume and weight of circuit breaker.Thereby produced the contradiction between chassis bearing capacity and the volume restrictions.For above-mentioned reasons, the circuit breaker of the current 12KV of having only has been realized the automation of chassis.Circuit breaker for 40.5KV; If adopt too small mechanical clutch can't transmit enough moment to drive circuit breaker; If adopt bigger mechanical clutch, but receive the spatial constraints in the switch cubicle and can't effectively install, so; Up to now, the circuit breaker of 40.5KV still can't be realized motorized effectively.
Summary of the invention
The objective of the invention is to the defective to above-mentioned prior art, a kind of simple in structure, advantages of small volume is provided and has the electronic chassis of circuit breaker of big bearing capacity.
The electronic chassis of circuit breaker according to the invention comprises quiet vehicle frame and the motor-car frame that can move relative to this quiet vehicle frame; On the said quiet vehicle frame screw mandrel is installed; Be fitted with the screw mandrel piece that fixes with said motor-car frame on this screw mandrel; On the said motor-car frame motor assembly is installed also; The rotation of this motor assembly is passed to said screw mandrel through transmission mechanism, thereby drives screw mandrel piece, motor-car frame and motor assembly along the moving axially of screw mandrel, and between said motor assembly and the transmission mechanism electromagnetic clutch is installed.Because this chassis has successfully been used the clutch part of electromagnetic clutch as transmission of power; This chassis has made full use of little, the advantage of simple structure of electromagnetic clutch volume; Thereby can reduce requisite space significantly; Thoroughly solve the contradiction between chassis bearing capacity and the spatial constraints, thereby realize circuit breaker, the especially motorized of 40.5kV electric pressure; Create condition for controlling automatically, and then solved the automatic operating of technical barrier all the time can't implement to(for) the circuit breaker chassis of 40.5KV.
Preferably; Electric chassis truck of the present invention is installed electromagnetic clutch through following better way structure and applied on the circuit breaker chassis: said transmission mechanism is a chain-drive mechanism; Comprise through first sprocket wheel of bearings on the motor assembly output shaft with can be along screw axis to the driving-chain that is installed in second sprocket wheel on the screw mandrel and matches movably with said first sprocket wheel and second sprocket wheel; During work; First sprocket wheel drives second sprocket wheel and screw mandrel rotation around the output shaft rotation and through driving-chain under the drive of electromagnetic clutch, meanwhile, second sprocket wheel will move axially along screw mandrel.Wherein, Said electromagnetic clutch comprises clutch main body and sucker; Be respectively arranged with relative rubbing surface on said clutch main body and the sucker; Said sucker be supported on the motor assembly output shaft and can be in the magneticaction lower edge of clutch main body the moving axially of this motor assembly output shaft, wherein, but engage with the mode of first sprocket wheel all the time along this sucker in the axially movable process of motor assembly output shaft with transmitting torque at sucker.
Preferably; The said sucker and first sprocket wheel are respectively equipped with first boss and second boss that cooperatively interacts and keep out on opposite face; Thereby first boss will engage and promote second boss and make first sprocket rotation when sucker rotates, but the composition surface of this first boss and second boss along the length of motor assembly output shaft all greater than the relative rubbing surface of this sucker and clutch main body distance along the motor assembly output shaft." composition surface " refers to first boss and the contact-making surface of second boss when being bonded with each other, and this composition surface will change along moving of output shaft along with sucker." composition surface is along the length of motor assembly output shaft " refers to the projected length of composition surface on output shaft, when sucker has maximum composition surface along motor assembly output shaft length when output shaft moves to away from the electromagnetic clutch position.
Preferably, said first boss and second boss are respectively along the periphery setting of the axis hole of the sucker and first sprocket wheel.Along the periphery of the axis hole of the sucker and first sprocket wheel be provided with boss benefit be to increase of the support of motor assembly output shaft to the sucker and first sprocket wheel, can effectively reduce the overall volume of the sucker and first sprocket wheel simultaneously, thus convenient layout.
Preferably, the relative rubbing surface of said sucker and clutch main body is provided with friction enhancing structure.It is salient point or burr that this friction strengthens structure optimization.
Preferably, said motor assembly comprises speed change gear, the motor speed adjustment is converted into the required speed of service of concrete operational environment of circuit breaker chassis.
Preferably, said electric chassis truck also comprises control system, and the start-stop of said motor assembly and the clutch of electromagnetic clutch all receive the control of this control system.Wherein, said control system preferably includes the mobile final position switch of motor-car frame, and this moves the final position switch is normally closed switch, and this normally closed switch sends a signal to control system to stop motor assembly work when the motor-car frame is reached home.
Description of drawings
Fig. 1 is the sketch map according to a kind of specific embodiment of circuit breaker chassis according to the invention;
Fig. 2 a and 2b are the sketch map of the motor assembly 1 in the circuit breaker chassis shown in Figure 1;
Fig. 3 a and 3b are the sketch map of the clutch main body 2 in the circuit breaker chassis shown in Figure 1;
Fig. 4 a and 4b are the sketch map of the sucker 3 of circuit breaker chassis shown in Figure 1;
Fig. 5 a and 5b are the sketch map of first sprocket wheel 4 of circuit breaker chassis shown in Figure 1;
Fig. 6 a and 6b are the sketch map of second sprocket wheel 6 of circuit breaker chassis shown in Figure 1;
Fig. 7 a and 7b are the assembling sketch map of motor assembly 1, clutch main body, sucker 3 and first sprocket wheel 4 in the said circuit breaker chassis of Fig. 1.
In this specification and accompanying drawing, identical Reference numeral is represented identical or similar characteristic or element.Reference numeral used herein is distinguished as follows:
The 1-motor assembly; The 11-motor; The 12-decelerator; The 13-output shaft; 2-clutch main body; The 3-sucker; 31-first boss; 4-first sprocket wheel; 41-second boss; The 5-driving-chain; 6-second sprocket wheel; 7-screw mandrel piece; The 8-screw mandrel; 9-motor-car frame
Embodiment
Refer now to following explanation and accompanying drawing, specify exemplary scheme of the present invention.The accompanying drawing of this application not exclusively is to draw by the actual size of specific embodiments, and the variation aspect size all should not be construed as and makes limitation of the present invention.
Hereinafter " like figure ... shown in " or similar statement, be meant with reference to certain accompanying drawing specified features described that still, should not be construed as, this specified features or its equivalents only are included in this accompanying drawing.
Some directional terminology hereinafter, for example " upper end " and other directional terminology are the directions of the of living in or indication of this characteristic during in the face of accompanying drawing.But when changing in the application scenario, then the direction represented of these directional terminology also can correspondingly change.
Fig. 1 shows according to the electronic chassis of a kind of concrete circuit breaker of the present invention.This device comprises quiet vehicle frame and the motor-car frame 9 that can relatively move with this quiet vehicle frame.Wherein, mobile thereby quiet vehicle frame is fixed installation according to specific requirement maintenance and switch cubicle.On the said quiet vehicle frame screw mandrel 8 is installed, is fitted with the screw mandrel piece 7 that fixes with said motor-car frame 9 on this screw mandrel 8.On the said motor-car frame motor assembly 1 is installed; Thereby the motion of this motor assembly 1 is passed to said screw mandrel 8 and is driven screw mandrel piece 7, motor-car frame 9 and motor assembly and chain-drive mechanism along the moving axially of screw mandrel 8 through chain wheel driving mechanism, between said motor assembly 1 and the chain wheel driving mechanism electromagnetic clutch is installed.
Hereinafter will describe in detail respectively to each building block or the member of this chassis.Should be understood that all contents of introducing are all only as the usefulness of giving an example among this paper, those skilled in the art can make various variations or change to the content of this paper introduction after reading content of the present invention.For the narration for purpose of brevity, this paper will not enumerate all possible variation, change or equivalent way, still, these variations, change or equivalent way include certainly within disclosure of the present invention and protection range.
The electronic chassis of this paper indication circuit breaker is the device that circuit breaker position is moved as required for through electronic mode.In the embodiment shown in fig. 1, this device comprises fixing quiet vehicle frame, and this quiet vehicle frame can be total to any way of knowing through this area and be fixed on and keep motionless in the switch cubicle, is supported with square motor-car frame 9 on the quiet vehicle frame.Wherein, be supported with screw mandrel 8 on the quiet vehicle frame, simultaneously, motor-car frame 9 is installed with the screw mandrel piece 7 that matches with this screw mandrel 8.Screw mandrel 8 can rotate under the effect of transmission device, thereby the screw mandrel piece 7 that this screw mandrel 8 is matched moves axially along screw mandrel 8, and then drives motor-car frame 9 and circuit breaker moves axially along screw mandrel 8, such as between experiment position and service position, moving.
Motor assembly described in the present embodiment 1 can be various suitable motors, preferred direct current rotating energy storage motor 11, and it can rotate and reverse under control.Motor assembly 1 can also comprise decelerator 12 as assembly parts, and is as shown in Figure 2, thereby makes the rotating speed requirement up to specification of the output shaft 13 of motor assembly 1.It is form that the output shaft 13 of motor assembly 1 can adopt various suitable axles, and such as shown in the figure, the output shaft 13 of motor assembly 1 is a multidiameter, and wherein inner large-diameter portion divides installs clutch main body 2, and outer path is partly installed first sprocket wheel 4 and sucker 3.
The rotation of above-mentioned screw mandrel 8 is achieved through transmission device.During this was embodiment illustrated in fig. 1, this transmission device was a chain-drive mechanism.Certainly, this transmission device also can be other transmission mechanism, such as Bevel Gear Transmission mechanism, tape handler etc.This chain-drive mechanism comprises through first sprocket wheel 4 (as shown in Figure 5) of bearings on motor assembly 1 output shaft 13 and the driving-chain 5 that is fixedly mounted on second sprocket wheel 6 (as shown in Figure 6) on the screw mandrel 8 and matches with said first sprocket wheel 4 and second sprocket wheel 6.Said first sprocket wheel 4 can be supported on motor assembly 1 output shaft 13, such as angular contact ball bearing, deep groove ball bearing, needle bearing, sliding bearing etc. through various suitable manner.Rotatable and first sprocket wheel 4 can not move this first sprocket wheel 4 in the axial direction relative to motor assembly 1 output shaft 13.Said second sprocket wheel 6 can be installed on the screw mandrel 8 along screw mandrel 8 with moving axially, thereby makes screw mandrel 8 under the drive of this second sprocket wheel 6, to rotate.Second sprocket wheel 6 is between a crossbeam of screw mandrel piece 7 and motor-car frame 9.In order to make second sprocket wheel 6 can be along the moving axially of screw mandrel 8, the surperficial upper edge screw mandrel 8 of screw mandrel 8 be axially arranged with groove, and simultaneously, the axis hole sidewall of second sprocket wheel 6 is provided with the boss adaptive with this groove.Second sprocket wheel 6 is sleeved on the screw mandrel 8, and boss embeds in the groove on screw mandrel 8 surfaces.When second sprocket wheel 6 rotates under the drive of driving-chain 5; Second sprocket wheel 6 drives screw mandrel 8 through the boss on its axis hole and rotates; Thereby the screw mandrel piece 7 that is installed on the screw mandrel 8 will be along the moving axially of screw mandrel 8, and then motor-car frame 9, motor assembly 1 that drive is connected with screw mandrel piece 7 move.Simultaneously because second sprocket wheel 6 is installed on crossbeam and screw mandrel piece 7 assemblies of motor-car frame 9, second sprocket wheel 6 also will along screw mandrel 8 axially with same moved further of parts such as motor assembly 1 and first sprocket wheel 4 and driving-chains 5.The interior axis hole of shown second sprocket wheel of Fig. 6 a and 6b is provided with two relative boss; Correspondingly; The surface of screw mandrel is provided with two grooves suitable with it, thereby makes second sprocket wheel more balanced to the transmission of torque of screw mandrel, and then makes the rotation of screw mandrel more steady; And reduce the suffered stress of screw mandrel, prolong the screw mandrel life-span.
Said electromagnetic clutch comprises electromagnetic clutch clutch main body (as shown in Figure 3) and sucker 3 (as shown in Figure 4), and said clutch main body is fixedly installed on motor assembly 1 output shaft 13.To this; It may occur to persons skilled in the art that this clutch main body can integrally be fixed on the output shaft, thereby integrally along with output shaft rotates; Also can be designed to the housing of clutch main body and the housing of motor assembly fixes; Have only the pivotable parts in the housing to rotate,, thereby reduce the load of output shaft such as frictional disk with output shaft.Said sucker 3 be supported on motor assembly 1 output shaft 13 and can be in the magneticaction lower edge of clutch main body this motor assembly 1 output shaft 13 move axially and around the rotational of motor assembly 1; Wherein, but engage with the mode of first sprocket wheel 4 all the time along this sucker 3 in the process of the rotational of motor assembly 1 output shaft 13 at sucker 3 with transmitting torque.In said practical implementation; The said sucker 3 and first sprocket wheel 4 are respectively equipped with first boss and second boss that cooperatively interacts and keep out on opposite face; Thereby first boss will promote second boss first sprocket wheel 4 is rotated when sucker 3 rotates, this first boss and second boss along the length of motor assembly 1 output shaft 13 all greater than the relative rubbing surface of this sucker 3 and clutch main body distance along motor assembly 1 output shaft 13.Said first boss and second boss can be various suitable shapes and structure.In said embodiment, said first boss and second boss are respectively the annular boss that is provided with along the periphery of the axis hole of the sucker 3 and first sprocket wheel 4.Be to increase the support of the 13 pairs of suckers 3 of motor assembly 1 output shaft and first sprocket wheel 4 along the benefit of the structure of the periphery setting of the axis hole of the sucker 3 and first sprocket wheel 4, can have effectively reduced the overall volume of the sucker 3 and first sprocket wheel 4 simultaneously, thus convenient layout.
The said electromagnetic clutch of present embodiment can be the various types of electromagnetic clutchs in this area.Electromagnetic clutch generally includes to have provides magneto motive clutch main body 2 and sucker 3; Clutch main body 2 has relative rubbing surface with sucker 3, sucker 3 can under the action of a magnetic field of clutch main body 2 with clutch main body 2 on the rubbing surface adhesive or separate.The joint that the break-make electricity of inner coil of electromagnetic clutch comes solenoidoperated cluthes with separate.For compact requirement of the present invention, this clutch must have smaller volume simultaneously in the condition that possesses design power, thereby being convenient in limited space, be able to arranges.Can select dry type monolithic electromagnetic clutch, dry-type multidisc electromagnetic clutch, wet type multi-disc electromagnetic clutch, magnetic powder cluth, slip type electromagnetic clutch etc. in the present invention for use.The working method of this electromagnetic clutch can be energising and combines or cut off the power supply to combine.Said dry type monolithic electromagnetic clutch produces magnetic force adhesive sucker 3 when coil electricity, clutch is in engagement state; Sucker left in 3 minutes during coil blackout, and clutch is in released state.Dry type multi-disc wet type multi-disc electromagnetic clutch principle is identical with dry type monolithic electromagnetic clutch; Increase several friction pairs in addition; Equal volume torque ratio dry type monolithic electromagnetic clutch is big, and fluid or the cooling of other cooling fluid must be arranged during wet type multi-disc electromagnetic clutch work.In the present embodiment, this electromagnetic clutch comprises clutch main body 2 (like Fig. 3) and sucker 3 (like Fig. 4).Said clutch main body 2 is switched under the control of chassis control system and is produced magnetic field, and sucker 3 is under the action of a magnetic field and 2 adhesives of clutch main body.Be respectively equipped with rubbing surface on the opposite face of clutch main body 2 and sucker 3.Under the state of adhesive, the clutch main body 2 that is fixedly connected with motor assembly 1 output shaft 13 will be rotated under the drive of motor assembly 1, and drive sucker 3 rotations by friction, thereby through sucker 3 rotation will be passed to first sprocket wheel 4.When said clutch main body 2 is cut off the power supply under the control of chassis control system; The magnetic field that no longer has the adhesive effect; Sucker 3 left with the clutch main body in 2 minutes; The clutch main body 2 that is fixedly connected with motor assembly 1 output shaft 13 will dally under the drive of motor assembly 1, and sucker 3 rotates no longer and rotates, thereby first sprocket wheel 4 also stops operating.For transmitting torque better, the relative rubbing surface of said sucker 3 and clutch main body is provided with friction and strengthens structure.Any suitable friction in this area strengthens structure and all can be able to select for use; Have the coating of better friction effect such as on the rubbing surface of clutch main body 2 and sucker 3, applying, structures such as salient point or burr are set for another example on the rubbing surface of clutch main body 2 and sucker 3 to increase friction.
Electric chassis truck of the present invention also comprises control system; The start-stop of said motor assembly 1 and the clutch of electromagnetic clutch; And the action of each parts of this electric chassis truck or mechanism all receives the control of this control system; Thereby realize the unattended operation in power station or the purpose of Long-distance Control, to satisfy demand such as intelligent grid.Said control system comprises the mobile final position switch of motor-car frame 9, and this moves the final position switch is normally closed switch, and this normally closed switch sends a signal to control system to stop motor assembly 1 work when motor-car frame 9 is reached home.
Electric chassis truck of the present invention such as the circuit breaker of 12kV, is particularly useful for the 40.5KV circuit breaker applicable to different voltage level breaker.Because voltage is high more, its insulating requirements is also high more, and the volume and weight of circuit breaker is also just big more, thereby the required load power of chassis is also just big more.In the prior art, electric chassis truck all adopts mechanical clutch.The weak point that the electric chassis truck of mechanical clutch is installed is, thereby causes the electric chassis truck size very big, and reliability is not enough.In addition, because the switch cubicle finite volume, the size of electric chassis truck and clutch thereof can not design too greatly.Simultaneously, because voltage is high more, the insulating requirements in the switch cubicle is also high, thus the also corresponding increase of the volume and weight of circuit breaker.Thereby produced the contradiction between chassis bearing capacity and the volume restrictions.For the circuit breaker of 40.5KV,,, but receive the spatial constraints in the switch cubicle and can't effectively install if adopt bigger mechanical clutch if adopt too small mechanical clutch can't transmit enough moment to drive circuit breaker.Chassis of the present invention has successfully been used the clutch part of electromagnetic clutch as transmission of power.Because the electromagnetic clutch volume is little, simple in structure, thereby can reduce requisite space significantly, thoroughly solves the contradiction between chassis bearing capacity and the spatial constraints, thereby the motorized that realizes the circuit breaker of 40.5kV electric pressure is controlled with automatic.
Below briefly the operating process of circuit breaker chassis of the present invention is described.
When needs are operated chassis of the present invention, give motor 11 energisings through control system, motor 11 rotates and the deceleration device through wherein is adjusted into lower operation rotating speed from 13 outputs of motor assembly 1 output shaft.Motor assembly 1 output shaft 13 drives electromagnetic clutch and rotates.Under the control of control system, electromagnetic clutch produces magnetic field, and sucker 3 is being inhaled under the frictional force effect of the relative rubbing surface that is incorporated in both along with the electromagnetic clutch rotation with electromagnetic clutch the effect in this magnetic field under.Owing to have the boss that is bonded with each other and keeps out on the opposite face of the sucker 3 and first sprocket wheel 4, sucker 3 drives 4 rotations of first sprocket wheel and drives second sprocket wheel 6 through driving-chain 5 and rotates.The boss that second sprocket wheel 6 rotates through its intermediate shaft hole drives screw mandrel 8 rotations, and then is sleeved on screw mandrel piece 7 the moving axially along screw mandrel 8 on the screw mandrel 8.Because motor assembly 1 all is fixedly mounted on the motor-car frame 9 with screw mandrel piece 7; Motor assembly 1 and motor-car frame 9 also moving axially under the affecting of screw mandrel piece 7 along with screw mandrel 8; Simultaneously; Because second sprocket wheel 6 is located between the crossbeam of screw mandrel piece 7 and motor-car frame 9, also screw mandrel 8 is axially and screw mandrel pieces 7 and the same moved further of parts such as motor-car frame 9 and motor assembly 1 down and in the guiding lower edge of screw mandrel 8 lip-deep axial notches the affecting of screw mandrel piece 7 and motor-car frame 9 for this second sprocket wheel 6.
Although the present invention shows a plurality of embodiment and described many details of chassis of the present invention simultaneously through these embodiment, should above-mentioned details be interpreted as scope of the present invention is confined to or is restricted in any form these details.After reading disclosure of the present invention, other advantage of the present invention is readily understood that with changing to those skilled in the art.Therefore, can under the situation that does not break away from desired thought of the present invention of applicant and scope, make a change.

Claims (10)

1. electronic chassis of circuit breaker; Comprise quiet vehicle frame and the motor-car frame (9) that can move relative to this quiet vehicle frame; Screw mandrel (8) is installed on the said quiet vehicle frame; Be fitted with the screw mandrel piece (7) that fixes with said motor-car frame (9) on this screw mandrel (8), motor assembly (1) also is installed on the said motor-car frame (9), thereby the rotation of this motor assembly (1) is passed to said screw mandrel (8) through transmission mechanism is driven screw mandrel piece (7), motor-car frame (9) and motor assembly (1) moving axially along screw mandrel (8); It is characterized in that, between said motor assembly (1) and the transmission mechanism electromagnetic clutch is installed.
2. according to the described electric chassis truck of claim (1); It is characterized in that; Said transmission mechanism is a chain-drive mechanism; Comprise the driving-chain (5) that can be installed in first sprocket wheel (4) on motor assembly (1) output shaft (13) rotationally and can be installed in second sprocket wheel (6) on the screw mandrel (8) with moving axially and match with said first sprocket wheel (4) and second sprocket wheel (6) along screw mandrel (8) around output shaft (13), during work, first sprocket wheel (4) rotates and drives second sprocket wheel (6) and screw mandrel (8) rotation through driving-chain (5) around output shaft (13) under the drive of electromagnetic clutch; Meanwhile, second sprocket wheel will move axially along screw mandrel (8).
3. electric chassis truck according to claim 2; It is characterized in that; Said electromagnetic clutch comprises clutch main body (2) and sucker (3); Be respectively arranged with relative rubbing surface on said clutch main body (2) and the sucker (3); Said sucker (3) is supported on that motor assembly (1) output shaft (13) is gone up and can be the moving axially of this motor assembly of the magneticaction lower edge of clutch main body (2) (1) output shaft (13), wherein, sucker (3) along this sucker (3) in the axially movable process of motor assembly (1) output shaft (13) all the time with first sprocket wheel (4) but engage with the mode of transmitting torque.
4. electric chassis truck according to claim 3; It is characterized in that; Said sucker (3) is respectively equipped with first boss (31) and second boss (41) that cooperatively interacts and keep out with first sprocket wheel (4) on opposite face; First boss (31) will engage and promote second boss (41) thereby first sprocket wheel (4) is rotated when sucker (3) rotates, this first boss (31) and second boss (41) composition surface along the length of motor assembly (1) output shaft (13) greater than the relative rubbing surface of this sucker (3) and clutch main body distance along motor assembly (1) output shaft (13).
5. electric chassis truck according to claim 4 is characterized in that, said first boss (31) and second boss (41) are respectively along the periphery setting of the axis hole of sucker (3) and first sprocket wheel (4).
6. electric chassis truck according to claim 4 is characterized in that, said sucker (3) is provided with friction enhancing structure with the relative rubbing surface of clutch main body.
7. electric chassis truck according to claim 1 is characterized in that, said motor assembly (1) comprises speed change gear (12).
8. according to the arbitrary described electric chassis truck of aforesaid right requirement, it is characterized in that, also comprise control system, the start-stop of said motor assembly (1) and the clutch of electromagnetic clutch all receive the control of this control system.
9. electric chassis truck according to claim 8; It is characterized in that; Said control system comprises the mobile final position switch of motor-car frame (9); Should move final position switch be normally closed switch, when motor-car frame (9) when reaching home this normally closed switch send a signal to control system to stop motor assembly (1) work.
10. electric chassis truck according to claim 1 is characterized in that, said circuit breaker is the 40.5KV circuit breaker.
CN201210085240.7A 2012-03-28 2012-03-28 Electric chassis vehicle for circuit breaker Active CN102723676B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201210085240.7A CN102723676B (en) 2012-03-28 2012-03-28 Electric chassis vehicle for circuit breaker
PCT/CN2013/073009 WO2013143415A1 (en) 2012-03-28 2013-03-21 Electric chassis vehicle for circuit breaker

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Application Number Priority Date Filing Date Title
CN201210085240.7A CN102723676B (en) 2012-03-28 2012-03-28 Electric chassis vehicle for circuit breaker

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CN102723676A true CN102723676A (en) 2012-10-10
CN102723676B CN102723676B (en) 2015-03-11

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Cited By (7)

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CN103326270A (en) * 2013-06-26 2013-09-25 无锡江南奕帆电力传动科技股份有限公司 Driving mechanism of breaker chassis vehicle
WO2013143415A1 (en) * 2012-03-28 2013-10-03 伊顿电气有限公司 Electric chassis vehicle for circuit breaker
WO2014166075A1 (en) * 2013-04-10 2014-10-16 General Electric Company Vacuum circuit breaker assembly
CN104577841A (en) * 2013-10-10 2015-04-29 施耐德电器工业公司 Novel circuit breaker cranking-in and cranking-out driving mechanism
CN104600616A (en) * 2013-10-31 2015-05-06 伊顿公司 Withdrawable contactor trucks, related swtichgear, kits and methods
CN107919624A (en) * 2017-11-10 2018-04-17 国网浙江省电力公司台州供电公司 The platform of 10kV chassis of circuit breaker vehicle overhaulings
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WO2013143415A1 (en) * 2012-03-28 2013-10-03 伊顿电气有限公司 Electric chassis vehicle for circuit breaker
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CN104577841B (en) * 2013-10-10 2017-03-01 施耐德电器工业公司 Chopper shakes into shaking out drive mechanism
CN104577841A (en) * 2013-10-10 2015-04-29 施耐德电器工业公司 Novel circuit breaker cranking-in and cranking-out driving mechanism
CN104600616A (en) * 2013-10-31 2015-05-06 伊顿公司 Withdrawable contactor trucks, related swtichgear, kits and methods
CN107919624A (en) * 2017-11-10 2018-04-17 国网浙江省电力公司台州供电公司 The platform of 10kV chassis of circuit breaker vehicle overhaulings
CN107919624B (en) * 2017-11-10 2024-05-14 国网浙江省电力公司台州供电公司 Platform for overhauling chassis truck of 10kV circuit breaker
CN115764660A (en) * 2022-10-20 2023-03-07 裕丰电气有限公司 Electric chassis vehicle and using method thereof
CN115764660B (en) * 2022-10-20 2023-05-12 裕丰电气有限公司 Electric chassis vehicle and use method thereof

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