CN102723676B - Electric chassis vehicle for circuit breaker - Google Patents
Electric chassis vehicle for circuit breaker Download PDFInfo
- Publication number
- CN102723676B CN102723676B CN201210085240.7A CN201210085240A CN102723676B CN 102723676 B CN102723676 B CN 102723676B CN 201210085240 A CN201210085240 A CN 201210085240A CN 102723676 B CN102723676 B CN 102723676B
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- Prior art keywords
- motor assembly
- screw mandrel
- sprocket wheel
- sucker
- output shaft
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal 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
Technical field
The present invention relates to a kind of circuit breaker chassis in electric power system, especially a kind of circuit breaker electric chassis truck.
Background technology
In existing insulated switch cabinet, in order to enable vacuum circuit-breaker realize easily advance and exit function (propelling refers to from test position and is advanced to service position, exit refer to from service position be withdrawn into test position), general employing chassis vehicle carries vacuum circuit-breaker, and by track in switch cubicle of driving wheel that chassis vehicle is installed moving ahead or retreating.For realizing the motion of chassis vehicle in switch cubicle, can arrange screw mandrel on a chassis, on screw mandrel, sheathed one is fixed on the screw on sole, by taper knob upper screw rod end, rotary screw rod, makes screw drive sole to move forward and backward, thus realizes the propelling of circuit breaker chassis and exit.This chassis vehicle 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 another switch cubicle, chassis vehicle adds electric operation module, wherein, mounted motor assembly on chassis vehicle, by the rotating forward of motor assembly, reversion control chassis vehicle propelling, exit motion, and then realize motorized and the automation of chassis vehicle motion, be called electric chassis truck.Electric chassis truck generally comprises the quiet vehicle frame of chassis vehicle, and chassis vehicle motor-car frame is provided with motor assembly, clutch and screw mandrel, and motor assembly is connected with clutch, the other end connection wire rod of clutch.Chassis is also arranged the manual priority device of promising security consideration, test position switching device shifter and service position switching device shifter.Manual priority device has sensitive switch and is arranged on the drive link below sensitive switch, and the other end of drive link is connected with screw mandrel.When carrying out manual operation, the sensitive switch on manual priority device disconnects at once, cuts off motor assembly loop, thus cannot carry out electric operating.Motor assembly in this chassis vehicle and Bevel Gear Transmission mode can be adopted between screw mandrel, and be furnished with special clutch, when there is clamping stagnation, clutch is thrown off automatically, motor assembly dallies, and relies 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 operated, screw turns, bevel gear is motionless.
In the prior art, electric chassis truck all adopts mechanical clutch.The weak point of installing the electric chassis truck of mechanical clutch is, because mechanical clutch part is many, requirement on machining accuracy is high, thus causes electric chassis truck size very large, and reliability is inadequate.In addition, due to switch cubicle finite volume, the size of electric chassis truck and clutch thereof can not design too large.Meanwhile, because voltage is higher, the insulating requirements in switch cubicle is also high, thus the also corresponding increase of the volume and weight of circuit breaker.Thus the contradiction created between chassis vehicle bearing capacity and volume restriction.For above-mentioned reasons, the circuit breaker of the current 12KV of only having achieves the automation of chassis vehicle.For the circuit breaker of 40.5KV, if adopt too small mechanical clutch cannot transmit enough moment to drive circuit breaker, if adopt larger mechanical clutch, but be subject to the spatial limitation in switch cubicle and cannot effectively install, so, up to now, the circuit breaker of 40.5KV still cannot realize motorized effectively.
Summary of the invention
The object of the invention is to the defect for above-mentioned prior art, provide that a kind of structure is simple, compact there is the circuit breaker electric chassis truck of larger bearing capacity.
Circuit breaker electric chassis truck of the present invention comprise quiet vehicle frame with can relative to the motor-car frame of this quiet vehicle frame movement, described quiet vehicle frame is provided with screw mandrel, this screw mandrel is fitted with the screw mandrel block fixed with described motor-car frame, described motor-car frame is also provided with motor assembly, the rotation of this motor assembly is passed to described screw mandrel by by transmission mechanism, thus drive screw mandrel block, motor-car frame and motor assembly moving axially along screw mandrel, between described motor assembly and transmission mechanism, electromagnetic clutch is installed.Because this chassis vehicle successfully employs the clutch part of electromagnetic clutch as transmission of power, this chassis vehicle takes full advantage of that electromagnetic clutch volume is little, the simple advantage of structure, thus requisite space can be reduced significantly, contradiction between thorough solution chassis vehicle bearing capacity and spatial limitation, thus realize circuit breaker, especially the motorized of 40.5kV electric pressure, create condition for automatically controlling, and then the circuit breaker chassis solved for 40.5KV cannot implement the technical barrier of automatic operating all the time.
Preferably, electric chassis truck of the present invention by following simple and reliably structure electromagnetic clutch installed apply on circuit breaker chassis: described transmission mechanism is chain-drive mechanism, comprise by first sprocket wheel of bearings on motor assembly output shaft and the driving-chain that can axially movably be arranged on the second sprocket wheel on screw mandrel along screw mandrel and match with described first sprocket wheel and the second sprocket wheel, during work, first sprocket wheel drives the second sprocket wheel and screw mandrel to rotate around output shaft rotation by driving-chain under the drive of electromagnetic clutch, meanwhile, second sprocket wheel will move axially along screw mandrel.Wherein, described electromagnetic clutch comprises clutch main body and sucker, described clutch main body with sucker is respectively arranged with relative rubbing surface, described suction cup support is on motor assembly output shaft and can moving axially along this motor assembly output shaft under the magneticaction of clutch main body, wherein, in the process moved axially along motor assembly output shaft at sucker this sucker all the time with the first sprocket wheel can the mode of transmitting torque engage.
Preferably, described sucker and the first sprocket wheel are respectively equipped with on opposite sides and cooperatively interact and first boss of keeping out and the second boss, when sucker rotates, joint is promoted the second boss thus makes the first sprocket rotation by the first boss, this first boss and the second boss can all be greater than the distance of opposing friction surfaces along motor assembly output shaft of this sucker and clutch main body along the length of motor assembly output shaft in composition surface." composition surface " refers to the first boss and the contact-making surface of the second boss when being bonded with each other, and this composition surface changes along with sucker along moving of output shaft." composition surface is along the length of motor assembly output shaft " refers to the projected length of composition surface on output shaft, when sucker moves to farthest away from having maximum composition surface during electromagnetic clutch position along motor assembly output shaft length along output shaft.
Preferably, described first boss and the second boss are arranged along the periphery of the axis hole of sucker and the first sprocket wheel respectively.Periphery along the axis hole of sucker and the first sprocket wheel arrange boss benefit be to add the support of motor assembly output shaft to sucker and the first sprocket wheel, the overall volume of sucker and the first sprocket wheel can be effectively reduced, thus convenient layout simultaneously.
Preferably, the opposing friction surfaces of described sucker and clutch main body is provided with to rub and strengthens structure.This friction strengthens structure and is preferably salient point or burr.
Preferably, described motor assembly comprises speed change gear, the speed of service needed with the specific works environment that motor speed adjustment is converted to circuit breaker chassis.
Preferably, described electric chassis truck also comprises control system, and the start-stop of described motor assembly and the clutch of electromagnetic clutch are all by the control of this control system.Wherein, described control system preferably includes the mobile final position switch of motor-car frame, and this moves final position switch is normally closed switch, and when motor-car frame is reached home, this normally closed switch sends a signal to control system to stop motor assembly work.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of specific embodiment according to circuit breaker chassis of the present invention;
Fig. 2 a and 2b is the schematic diagram of the motor assembly 1 in circuit breaker chassis shown in Fig. 1;
Fig. 3 a and 3b is the schematic diagram of the clutch main body 2 in circuit breaker chassis shown in Fig. 1;
The schematic diagram of the sucker 3 that Fig. 4 a and 4b is circuit breaker chassis shown in Fig. 1;
The schematic diagram of the first sprocket wheel 4 that Fig. 5 a and 5b is circuit breaker chassis shown in Fig. 1;
The schematic diagram of the second sprocket wheel 6 that Fig. 6 a and 6b is circuit breaker chassis shown in Fig. 1;
Fig. 7 a and 7b is the motor assembly 1 in circuit breaker chassis described in Fig. 1, the assembling schematic diagram of clutch main body, sucker 3 and the first sprocket wheel 4.
In the present description and drawings, identical Reference numeral represents identical or similar feature or element.Reference numeral used herein is as follows respectively:
1-motor assembly; 11-motor; 12-decelerator; 13-output shaft; 2-clutch main body; 3-sucker; 31-first boss; 4-first sprocket wheel; 41-second boss; 5-driving-chain; 6-second sprocket wheel; 7-screw mandrel block; 8-screw mandrel; 9-motor-car frame
Embodiment
Refer now to the following description and accompanying drawing, describe exemplary scheme of the present invention in detail.The accompanying drawing of this application is not exclusively draw by the actual size of specific embodiments, and the change in size all should not be construed as and makes limitation of the present invention.
Hereinafter " as figure ... shown " or similar statement, refers to and to be described specified features with reference to certain accompanying drawing, but should not be construed as, this specified features or its equivalents only comprises in the figure.
Some directional terminology hereinafter, such as " upper end " and other directional terminology are residing for this feature or the directions of indication when accompanying drawing.But when changing in application scenario, then the direction that these directional terminology represent also can correspondingly change.
Fig. 1 shows according to a kind of concrete circuit breaker electric chassis truck of the present invention.This device comprise quiet vehicle frame and can with the motor-car frame 9 of this quiet vehicle frame relative movement.Wherein, quiet vehicle frame is for fixed installation thus according to specifically requiring to keep not moving with switch cubicle.Described quiet vehicle frame is provided with screw mandrel 8, this screw mandrel 8 is fitted with the screw mandrel block 7 fixed with described motor-car frame 9.Described motor-car frame is provided with motor assembly 1, the motion of this motor assembly 1 is passed to described screw mandrel 8 thus is driven screw mandrel block 7, motor-car frame 9 and motor assembly and chain-drive mechanism moving axially along screw mandrel 8 by chain wheel driving mechanism, be provided with electromagnetic clutch between described motor assembly 1 and chain wheel driving mechanism.
Hereafter describe in detail to each building block of this chassis vehicle or component respectively.It should be understood that all to introduce content all for example purposes only herein, those skilled in the art can make a variety of changes the content introduced herein or change after reading content of the present invention.For describe for purpose of brevity, will do not enumerated all possible change, change or equivalent way herein, but, these change, change or equivalent way certainly include within disclosure of the present invention and protection range.
Indication circuit breaker electric chassis truck, is the device for making circuit breaker position be moved as required by electronic mode herein.In the embodiment shown in fig. 1, this device comprises fixing quiet vehicle frame, and this quiet vehicle frame can be fixed in switch cubicle by any mode that this area is in common knowledge and keep motionless, quiet vehicle frame is supported with square motor-car frame 9.Wherein, quiet vehicle frame is supported with screw mandrel 8, meanwhile, motor-car frame 9 is installed with the screw mandrel block 7 matched with this screw mandrel 8.Screw mandrel 8 can rotate under the effect of transmission device, thus the screw mandrel block 7 that this screw mandrel 8 is matched moves axially along screw mandrel 8, and then drives motor-car frame 9 and circuit breaker to move axially along screw mandrel 8, such as moves between experimental site and service position.
Motor assembly 1 described in the present embodiment can be various suitable motor, and preferred direct current rotating energy storage motor 11, it can rotate and reverse under control.Motor assembly 1, as assembly parts, can also comprise decelerator 12, as shown in Figure 2, thus the rotating speed of the output shaft 13 of motor assembly 1 is conformed with the regulations requirement.The output shaft 13 of motor assembly 1 can adopt various suitable axle system form, and such as shown in the figure, the output shaft 13 of motor assembly 1 is multidiameter, and wherein inner large diameter portion installs clutch main body 2, and outer path part installs the first sprocket wheel 4 and sucker 3.
The rotation of above-mentioned screw mandrel 8 is achieved by transmission device.During this is embodiment illustrated in fig. 1, this transmission device is chain-drive mechanism.Certainly, this transmission device also can be other transmission mechanism, such as bevel gear transmission, tape handler etc.This chain-drive mechanism comprises by first sprocket wheel 4 (as shown in Figure 5) of bearings on motor assembly 1 output shaft 13 and the second sprocket wheel 6 (as shown in Figure 6) be fixedly mounted on screw mandrel 8 and the driving-chain 5 matched with described first sprocket wheel 4 and the second sprocket wheel 6.Described first sprocket wheel 4 can be supported on motor assembly 1 output shaft 13 by various suitable mode, such as angular contact ball bearing, deep groove ball bearing, needle bearing, sliding bearing etc.This first sprocket wheel 4 can not move in the axial direction relative to rotatable and the first sprocket wheel 4 of motor assembly 1 output shaft 13.Described second sprocket wheel 6 axially movably can be arranged on screw mandrel 8 along screw mandrel 8, thus screw mandrel 8 can be rotated under the drive of this second sprocket wheel 6.Second sprocket wheel 6 is between screw mandrel block 7 and a crossbeam of motor-car frame 9.In order to make the second sprocket wheel 6 can moving axially along screw mandrel 8, the surface of screw mandrel 8 being axially arranged with groove along screw mandrel 8, meanwhile, the axis hole sidewall of the second sprocket wheel 6 being provided with the boss with this groove adaptation.Second sprocket wheel 6 is sleeved on screw mandrel 8, and boss embeds in the groove on screw mandrel 8 surface.When the second sprocket wheel 6 rotates under the drive of driving-chain 5, second sprocket wheel 6 drives screw mandrel 8 to rotate by the boss on its axis hole, thus the screw mandrel block 7 be arranged on screw mandrel 8 is by moving axially along screw mandrel 8, so drive be connected with screw mandrel block 7 motor-car frame 9, move together with motor assembly 1.Meanwhile, because the second sprocket wheel 6 is installed on a crossbeam and screw mandrel block 7 assembly of motor-car frame 9, the second sprocket wheel 6 also by the axis along screw mandrel 8 with motor assembly 1 and the first sprocket wheel 4 synchronizing moving together with the parts such as driving-chain 5.In the second sprocket wheel shown by Fig. 6 a with 6b, axis hole is provided with two relative boss, correspondingly, the surface of screw mandrel is provided with two grooves suitable with it, thus make the second sprocket wheel more balanced to the transmission of torque of screw mandrel, and then make the rotation of screw mandrel more steady, and the stress reduced suffered by screw mandrel, extend the screw mandrel life-span.
Described electromagnetic clutch comprises electromagnetic clutch clutch main body (as shown in Figure 3) and sucker 3 (as shown in Figure 4), and described 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 output shaft, thus integrally along with output shaft rotation, the housing of the housing and motor assembly that also can be designed to clutch main body fixes, only have pivotable parts in housing with output shaft rotation, such as frictional disk, thus reduce the load of output shaft.Described sucker 3 to be supported on motor assembly 1 output shaft 13 and can under the magneticaction of clutch main body along this motor assembly 1 output shaft 13 move axially and axis around motor assembly 1 rotates, wherein, in the process of rotating along the axis of motor assembly 1 output shaft 13 at sucker 3 this sucker 3 all the time with the first sprocket wheel 4 can the mode of transmitting torque engage.In described concrete enforcement, described sucker 3 and the first sprocket wheel 4 are respectively equipped with on opposite sides and cooperatively interact and first boss of keeping out and the second boss, when sucker 3 rotates, promotion second boss makes the first sprocket wheel 4 rotate by the first boss, and this first boss and the second boss are all greater than the distance of opposing friction surfaces along motor assembly 1 output shaft 13 of this sucker 3 and clutch main body along the length of motor assembly 1 output shaft 13.Described first boss and the second boss can be various suitable shape and structure.In the described embodiment, described first boss and the second boss are respectively the annular boss that the periphery along the axis hole of sucker 3 and the first sprocket wheel 4 is arranged.The benefit of the structure arranged along the periphery of the axis hole of sucker 3 and the first sprocket wheel 4 is the support adding motor assembly 1 output shaft 13 pairs of suckers 3 and the first sprocket wheel 4, can effectively reduce the overall volume of sucker 3 and the first sprocket wheel 4 simultaneously, thus convenient layout.
Electromagnetic clutch described in the 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, and sucker 3 can with the rubbing surface adhesive on clutch main body 2 or separate under the magnetic fields of clutch main body 2.The power on/off of electromagnetic clutch coil close to the inner portion carrys out the Engage and disengage of solenoidoperated cluthes.In order to compact requirement of the present invention, this clutch must have less volume in the condition possessing design power simultaneously, thus is convenient to be arranged in limited space.Dry single-disk electromagnetic clutch, dry-type multidisc electromagnetic clutch, wet type multi-disc electromagnetic clutch, magnetic powder cluth, slip type electromagnetic clutch etc. can be selected in the present invention.The working method of this electromagnetic clutch can be energising and combines or power-off combination.Described dry single-disk electromagnetic clutch produces magnetic attraction sucker 3 when coil electricity, and clutch is in engagement state; During coil blackout, separately, clutch is in released state to sucker 3.Dry multi wet type multi-disc electromagnetic clutch principle is identical with dry single-disk electromagnetic clutch, increase several friction pair in addition, equal volume torque ratio dry single-disk electromagnetic clutch is large, must have fluid or the cooling of other cooling fluid during wet type multi-disc electromagnetic clutch work.In the present embodiment, this electromagnetic clutch comprises clutch main body 2 (as Fig. 3) and sucker 3 (as Fig. 4).Described clutch main body 2 be energized under the control of chassis vehicle control system produce magnetic field, sucker 3 under magnetic fields with clutch main body 2 adhesive.Clutch main body 2 and the opposite face of sucker 3 are respectively equipped with rubbing surface.Under the state of adhesive, the clutch main body 2 be fixedly connected with motor assembly 1 output shaft 13 rotates under the drive of motor assembly 1, and drives sucker 3 to rotate by friction, thus by sucker 3, rotation is passed to the first sprocket wheel 4.When described clutch main body 2 is under the control of chassis vehicle control system during power-off, no longer there is the magnetic field of adhesive effect, sucker 3 separates with clutch main body 2, the clutch main body 2 be fixedly connected with motor assembly 1 output shaft 13 dallies under the drive of motor assembly 1, sucker 3 rotates and no longer rotates, thus the first sprocket wheel 4 also stops operating.In order to transmitting torque better, described sucker 3 and the opposing friction surfaces of clutch main body are provided with to rub strengthen structure.Any suitable friction in this area strengthens structure and all can be selected, such as on the rubbing surface of clutch main body 2 and sucker 3, coating has the coating of excellent frictional effect more, arranges the structure such as salient point or burr to increase friction for another example on the rubbing surface of clutch main body 2 and sucker 3.
Electric chassis truck of the present invention also comprises control system, the described start-stop of motor assembly 1 and the clutch of electromagnetic clutch, and the action of all parts of this electric chassis truck or mechanism is all by the control of this control system, thus realize the unattended operation in power station or the object of Long-distance Control, to meet the demands such as intelligent grid.Described control system comprises the mobile final position switch of motor-car frame 9, and this moves final position switch is normally closed switch, and when motor-car frame 9 is reached home, this normally closed switch sends a signal to control system and works to stop motor assembly 1.
Electric chassis truck of the present invention is applicable to the circuit breaker of different electric pressure, the circuit breaker of such as 12kV, is particularly useful for 40.5KV circuit breaker.Because voltage is higher, its insulating requirements is also higher, and the volume and weight of circuit breaker is also larger, thus load power needed for chassis vehicle is also larger.In the prior art, electric chassis truck all adopts mechanical clutch.The weak point of installing the electric chassis truck of mechanical clutch is, thus causes electric chassis truck size very large, and reliability is inadequate.In addition, due to switch cubicle finite volume, the size of electric chassis truck and clutch thereof can not design too large.Meanwhile, because voltage is higher, the insulating requirements in switch cubicle is also high, thus the also corresponding increase of the volume and weight of circuit breaker.Thus the contradiction created between chassis vehicle bearing capacity and volume restriction.For the circuit breaker of 40.5KV, if adopt too small mechanical clutch cannot transmit enough moment to drive circuit breaker, if adopt larger mechanical clutch, be but subject to the spatial limitation in switch cubicle and cannot effectively install.Chassis vehicle of the present invention successfully employs the clutch part of electromagnetic clutch as transmission of power.Because electromagnetic clutch volume is little, structure simple, thus requisite space can be reduced significantly, thoroughly solve the contradiction between chassis vehicle bearing capacity and spatial limitation, thus realize the motorized of the circuit breaker of 40.5kV electric pressure and automatically control.
The concise and to the point operating process to circuit breaker chassis of the present invention is below described.
When needs operate chassis vehicle of the present invention, be energized to motor 11 by control system, motor 11 rotates and is adjusted to lower operation rotating speed by deceleration device wherein and exports from motor assembly 1 output shaft 13.Motor assembly 1 output shaft 13 drives electromagnetic clutch to rotate.Under control of the control system, electromagnetic clutch produces magnetic field, and sucker 3 is inhaled with electromagnetic clutch under the frictional force effect of the relative rubbing surface being incorporated in both along with electromagnetic clutch rotates under the effect in this magnetic field.Due to the opposite face of sucker 3 and the first sprocket wheel 4 having the boss being bonded with each other and keeping out, sucker 3 drives the first sprocket wheel 4 to rotate and drives the second sprocket wheel 6 to rotate by driving-chain 5.The boss that second sprocket wheel 6 rotates through its intermediate shaft hole drives screw mandrel 8 to rotate, and then is sleeved on screw mandrel block 7 the moving axially along screw mandrel 8 on screw mandrel 8.Because motor assembly 1 and screw mandrel block 7 are all fixedly mounted on motor-car frame 9, motor assembly 1 and motor-car frame 9 moving axially also along with screw mandrel 8 under the affecting of screw mandrel block 7, simultaneously, because the second sprocket wheel 6 is located between screw mandrel block 7 and a crossbeam of motor-car frame 9, under the guiding of the axial notch of this second sprocket wheel 6 also under the affecting of screw mandrel block 7 and motor-car frame 9 and on screw mandrel 8 surface along screw mandrel 8 axially with screw mandrel block 7 and the parts synchronizing moving such as motor-car frame 9 and motor assembly 1.
Although invention shows multiple embodiment and simultaneously by these examples describing many details of chassis vehicle of the present invention, should by above-mentioned detailed explanation for by limit of the present invention in or be restricted to these details in any form.Reading disclosure of the present invention after, the present invention other advantage and change be readily understood that to those skilled in the art.Therefore, can make a change when the thought of the present invention do not departed from required by applicant and scope.
Claims (7)
1. a circuit breaker electric chassis truck, comprise quiet vehicle frame with can relative to the motor-car frame (9) of this quiet vehicle frame movement, described quiet vehicle frame is provided with screw mandrel (8), this screw mandrel (8) is fitted with the screw mandrel block (7) fixed with described motor-car frame (9), described motor-car frame (9) is also provided with motor assembly (1), the rotation of this motor assembly (1) is passed to described screw mandrel (8) thus is driven screw mandrel block (7) by transmission mechanism, motor-car frame (9) and motor assembly (1) moving axially along screw mandrel (8), it is characterized in that, between described motor assembly (1) and transmission mechanism, electromagnetic clutch is installed,
Wherein, described transmission mechanism is chain-drive mechanism, comprise and can be arranged on the first sprocket wheel (4) on motor assembly (1) output shaft (13) and second sprocket wheel (6) that axially movably can be arranged on along screw mandrel (8) on screw mandrel (8) and the driving-chain (5) matched with described first sprocket wheel (4) and the second sprocket wheel (6) rotationally around output shaft (13), during work, first sprocket wheel (4) rotates around output shaft (13) and passes through driving-chain (5) and drives the second sprocket wheel (6) and screw mandrel (8) to rotate under the drive of electromagnetic clutch, meanwhile, second sprocket wheel will move axially along screw mandrel (8),
Described electromagnetic clutch comprises clutch main body (2) and sucker (3), described clutch main body (2) is respectively arranged with relative rubbing surface with on sucker (3), it is upper and can moving axially along this motor assembly (1) output shaft (13) under the magneticaction of clutch main body (2) that described sucker (3) is supported on motor assembly (1) output shaft (13), wherein, in the process that sucker (3) moves axially along motor assembly (1) output shaft (13) this sucker (3) all the time with the first sprocket wheel (4) can the mode of transmitting torque engage,
Described sucker (3) and the first sprocket wheel (4) are respectively equipped with on opposite sides and cooperatively interact and first boss (31) of keeping out and the second boss (41), when sucker (3) rotates, joint is promoted the second boss (41) thus the first sprocket wheel (4) is rotated by the first boss (31), this first boss (31) and the second boss (41) composition surface are greater than the distance of opposing friction surfaces along motor assembly (1) output shaft (13) of this sucker (3) and clutch main body along the length of motor assembly (1) output shaft (13).
2. electric chassis truck according to claim 1, is characterized in that, described first boss (31) and the second boss (41) are arranged along the periphery of the axis hole of sucker (3) and the first sprocket wheel (4) respectively.
3. electric chassis truck according to claim 1, is characterized in that, the opposing friction surfaces of described sucker (3) and clutch main body is provided with to rub strengthen structure.
4. electric chassis truck according to claim 1, is characterized in that, described motor assembly (1) comprises speed change gear (12).
5., according to arbitrary described electric chassis truck of the claims, it is characterized in that, also comprise control system, the start-stop of described motor assembly (1) and the clutch of electromagnetic clutch are all by the control of this control system.
6. electric chassis truck according to claim 5, it is characterized in that, described control system comprises the mobile final position switch of motor-car frame (9), this moves final position switch is normally closed switch, and when motor-car frame (9) is reached home, this normally closed switch sends a signal to control system and works to stop motor assembly (1).
7. electric chassis truck according to claim 1, is characterized in that, described circuit breaker is 40.5KV circuit breaker.
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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210085240.7A CN102723676B (en) | 2012-03-28 | 2012-03-28 | Electric chassis vehicle for circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102723676A CN102723676A (en) | 2012-10-10 |
| CN102723676B true CN102723676B (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210085240.7A Active CN102723676B (en) | 2012-03-28 | 2012-03-28 | Electric chassis vehicle for circuit breaker |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102723676B (en) |
| WO (1) | WO2013143415A1 (en) |
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| CN102723676B (en) * | 2012-03-28 | 2015-03-11 | 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 |
| CN103326270B (en) * | 2013-06-26 | 2016-08-10 | 无锡江南奕帆电力传动科技股份有限公司 | The drive mechanism of circuit breaker chassis |
| CN104577841B (en) * | 2013-10-10 | 2017-03-01 | 施耐德电器工业公司 | Chopper shakes into shaking out drive mechanism |
| US9673595B2 (en) * | 2013-10-31 | 2017-06-06 | Eaton Corporation | Withdrawable contactor trucks with integral motorized levering-in, related switchgear, kits and methods |
| US9407072B2 (en) | 2014-03-05 | 2016-08-02 | Eaton Corporation | Motorized racking assembly |
| US9438013B2 (en) | 2014-03-05 | 2016-09-06 | Eaton Corporation | Drive assembly for an electrical switching apparatus racking assembly |
| CN206471986U (en) * | 2016-12-23 | 2017-09-05 | Abb瑞士股份有限公司 | The drive device of vacuum circuit breaker chassis |
| CN107037357B (en) * | 2017-05-31 | 2024-03-15 | 中国电力科学研究院 | Full-automatic breaker chassis vehicle mechanical life test system and method |
| 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 |
| CN112242658A (en) * | 2019-07-17 | 2021-01-19 | 佛山市顺德区法福特电气有限公司 | Electric chassis vehicle |
| CN110239646A (en) * | 2019-07-24 | 2019-09-17 | 上海库康科技有限公司 | Wheel transmission with clutch shock-absorbing function |
| 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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| CN1257296A (en) * | 1999-12-06 | 2000-06-21 | 周友东 | Combined type circuit breaker with electric operation mechanism |
| EP1469571A1 (en) * | 2003-04-15 | 2004-10-20 | Schneider Electric Industries SAS | Interlocking device for a withdrawable electrical apparatus and apparatus having such device |
| CN1540180A (en) * | 2003-11-03 | 2004-10-27 | 徐存龙 | Electromagnetic clutch |
| CN2749150Y (en) * | 2004-12-08 | 2005-12-28 | 重庆华洋电器有限公司 | Motor chassis for circuit breaker handcart |
| CN201818677U (en) * | 2010-08-25 | 2011-05-04 | 章红根 | Electromagnetic clutch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723676B (en) * | 2012-03-28 | 2015-03-11 | 伊顿电气有限公司 | Electric chassis vehicle for circuit breaker |
-
2012
- 2012-03-28 CN CN201210085240.7A patent/CN102723676B/en active Active
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2013
- 2013-03-21 WO PCT/CN2013/073009 patent/WO2013143415A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1257296A (en) * | 1999-12-06 | 2000-06-21 | 周友东 | Combined type circuit breaker with electric operation mechanism |
| EP1469571A1 (en) * | 2003-04-15 | 2004-10-20 | Schneider Electric Industries SAS | Interlocking device for a withdrawable electrical apparatus and apparatus having such device |
| CN1540180A (en) * | 2003-11-03 | 2004-10-27 | 徐存龙 | Electromagnetic clutch |
| CN2749150Y (en) * | 2004-12-08 | 2005-12-28 | 重庆华洋电器有限公司 | Motor chassis for circuit breaker handcart |
| CN201818677U (en) * | 2010-08-25 | 2011-05-04 | 章红根 | Electromagnetic clutch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102723676A (en) | 2012-10-10 |
| WO2013143415A1 (en) | 2013-10-03 |
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