Summary of the invention
It is an object of the invention to solve at least the above, and the advantage that at least will be described later is provided.
A further object of the invention is the design defect for above adjustable transformer, it is provided that a kind of three-phase high level of synchronization is adjustable
Transformator, the three-phase of transformator can independently adjustable use, it is also possible to connects and is transformed into the adjustable transformator of three-phase synchronous, spirit
Service of living is in each electrical network, and the present invention solves three-phase adjustable transformer cannot be transformed into the skill that monophase type adjustable transformer uses
Art problem.
In order to realize according to object of the present invention and further advantage, it is provided that a kind of three-phase high level of synchronization adjustable transformer,
Including:
Three pairs of single-phase transformation coil groups, it is contained in transformer body, and described single-phase transformation coil groups includes around being located at iron core
On primary winding and secondary coil, the periphery of described secondary coil is arranged with fluted disc, its inner ring and described secondary coil periphery
Engagement connects, and described fluted disc upper end is provided with conducting ring, itself and the periphery laminating of described secondary coil;
Reduction box, it is arranged on the upper end of described device body, and described reduction box is provided with motor, the output shaft of described motor with
The power shaft of described reduction box connects, and described motor is connected with the controller of described transformator;
Screw mandrel rotating shaft, it is disposed longitudinally in described device body and end is drawn with described device, and the upper end of described screw mandrel rotating shaft sets
Being equipped with rotor gear, described screw mandrel rotating shaft is connected with the engagement of described fluted disc outer ring;
Electromagnetic clutch, it is selectively connected described rotor gear and the output shaft of described reduction box, described electromagnetic clutch
It is connected with described controller.
Preferably, described electromagnetic clutch is vertically mounted on the upper end of described device body, and described electromagnetic clutch includes base and stretches
Contracting be arranged on the movable end in described base, described movable end optionally link described rotor gear and described reduction box output
Axle.
Preferably, described base is provided centrally with vertical cavity, is provided with annular chamber in the described base of described vertical cavity periphery,
Being provided with spring in described annular chamber, on the medial wall of described vertical cavity, symmetry offers several and connects described vertical cavity and ring
The vertical channel in shape chamber, the bottom of described base is provided with the winding coil being connected with power supply, the on and off switch of described winding coil
It is connected with described controller.
Preferably, described movable end includes:
Telescopic shaft, it is made up of magnetic material, and described telescopic shaft is movably arranged in described vertical cavity, the end of described telescopic shaft
Portion is symmetrically arranged with several blocks, and described block is movably arranged in described vertical channel, and described block is pressed against described bullet
The upper end of spring, described telescopic shaft center offers axis hole, described axis hole sidewall is provided with an annular groove;
Clutch gear, its central authorities lower end is provided with gear shaft, and described gear shaft rotates and is arranged in described axis hole, and described tooth
Wheel shaft bottom is provided with horizontal sliding wheel, and described horizontal sliding wheel rotates and is arranged in described annular groove, and described clutch gear is optionally
Engage with described rotor gear and described reduction gearbox output shaft simultaneously and be connected.
Preferably, also including voltage collector, it is arranged on the outfan of each described secondary coil, described voltage collector
It is connected with described controller.
Preferably, described device body medial wall being provided with screw thread, the outer ring of each described fluted disc is engaged with described device body medial wall
Connect.
Preferably, every pair of described single-phase transformation coil groups is disposed in described device body, every pair of described single-phase transformation coil groups
It is correspondingly arranged on a described screw mandrel rotating shaft and the described electricity for link described screw mandrel rotating shaft and described reduction gearbox output shaft
Magnet clutch.
Preferably, outside extraction voltage input, and institute of each described secondary coil on each described primary winding
Stating outside extraction voltage outfan on conducting ring, of described secondary coil and described conducting ring are by the described secondary line of part
Circle windings in series connects.
Preferably, described device body is filled with transformer oil.
Preferably, described screw mandrel rotating shaft top and bottom are connected with described device body by bearing.
The present invention at least includes following beneficial effect:
1, three single-phase adjustable transforms are become three-phase adjustable transformer by the present invention, and the three-phase transformer after conversion achieves
Synchronize pressure regulation, it is adaptable in three-phase circuit, meanwhile, three single-phase transformers can also be used alone, it is achieved that single-phase voltage regulating,
The transformator of the present invention can expand the range of transformator according to circuit requirements be applicable to single-phase or three-phase circuit;
2, during the transformator of the present invention goes for three independent single-phase circuits, the service of transformator is expanded further
Network, is contained in the transformator that three independent in a device body meanwhile, decreases the manufacture using three separated transformers
Cost;
3, by the setting of electromagnetic clutch, it is achieved that the accurate control of screw mandrel axis of rotation angle, change is namely achieved
Transformer voltage ratio the most adjustable, improves the precision of adjustable transformer output voltage.
Part is embodied by the further advantage of the present invention, target and feature by description below, and part also will be by the present invention
Research and practice and be understood by the person skilled in the art.
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to description word energy
Enough implement according to this.
Should be appreciated that used herein such as " have ", " comprising " and " including " term do not allot one or many
Other element individual or the existence of a combination thereof or interpolation.
As Figure 1-4, the present invention provides a kind of three-phase high level of synchronization adjustable transformer, including:
Three-phase transformer structure is as it is shown in figure 1, three to identical single-phase transformation coil groups, and it is contained in transformer body 100
In, described single-phase transformation coil groups includes around the primary winding 150 being located on iron core 130 and secondary coil 140, this enforcement
In example use two-core type iron core, by iron yoke 180 formed closed magnetic circuit, primary winding 150 and secondary coil 140 rotating around
It is located on a single iron core, by the coil of the periphery of described secondary coil 140 around becoming continuous print texture structure, described
The periphery of secondary coil 140 is arranged with fluted disc 160, and fluted disc 160 inner ring is provided with female thread, and fluted disc 160 inner ring is with described
The engagement of secondary coil 140 periphery connects, and fluted disc 160 is made up of insulant, and described fluted disc 160 upper end is provided with conducting ring
170, itself and the periphery laminating of described secondary coil 140, namely conducting ring 170 is conductively connected with secondary coil 140,
Described conducting ring 170, along with the rotation of described fluted disc 160, axially moves up and down at secondary coil 140 outer peripheral surface, in order to
Being easy to describe, single-phase transformer structure as Figure 2-3, on each described primary winding 150, outside extraction voltage inputs
End 151 and 152, an outside extraction voltage outfan 141 of each described secondary coil 140, at described conducting ring 170
Upper outside extraction voltage outfan 142, voltage output end 141 and voltage output end 142 by the described secondary coil of part around
Group is connected in series, along with the lifting on secondary coil of the described conducting ring 170, voltage output end 141 and voltage output end
Connection winding between 142 changes, thus changes the output voltage between voltage output end 141 and voltage output end 142,
When individually controlling the described conducting ring 170 position on secondary coil, the transformator of the present invention be three independent adjustable
Single-phase transformer, can service in three independent circuit networks, is contained in by the transformator that three are independent in a device body,
Decrease the manufacturing cost using three separated transformers;Meanwhile, when needs are transformed into three-phase adjustable transformer, by three
Conducting ring 170 adjusts an identical height and position, is then connect or the side of corner connection with star by three groups of voltage input ends 151 and 152
Formula connects, and three groups of voltage output ends 141 and voltage output end 142 are also connect by star or connected in the way of corner connection, the most convertible
Become three-phase adjustable transformer, the height and position of adjusted in concert conducting ring 170, three-phase synchronous voltage-regulation can be realized;
Reduction box 300, it is arranged on the upper end of described device body 100, described reduction box 300 is provided with for driving screw mandrel
The motor 200 that rotating shaft rotates, the output shaft of described motor 200 is connected with the power shaft of described reduction box 300, described motor
200 are connected with the controller of described transformator;
Screw mandrel rotating shaft 110, it is disposed longitudinally in described device body 100 and draws from described device body 100 upper end, described screw mandrel
The upper end of rotating shaft 110 is provided with rotor gear 111, and described screw mandrel rotating shaft 110 is connected with the engagement of described fluted disc 160 outer ring,
Rotary screw rod rotating shaft 110 is carried out, due to outer ring and the described screw mandrel rotating shaft 110 of described fluted disc 160 by rotating rotor gear 111
Engagement connects, and the inner ring of described fluted disc 160 engages with the outer ring of secondary coil 140 and is connected, when rotary screw rod rotating shaft 110,
Fluted disc 160 can in secondary coil 140 upper shaft to moving up and down, conducting ring 170 also with fluted disc 160 on secondary coil
Lower movement, thus change the access winding between voltage output end 141 and voltage output end 142, adjust voltage with this defeated
Go out the output voltage values between end 141 and voltage output end 142;
Electromagnetic clutch 400, it is vertically mounted on the upper end of described device body 100, described rotor gear 111 and reduction box
Output shaft 310 is horizontally spaced about, and described electromagnetic clutch 400 is arranged on described rotor gear 111 and reduction gearbox output shaft
On device body 100 between 310, and described electromagnetic clutch 400 is selectively connected described rotor gear 111 and described subtracts
Speed case output shaft 310, makes motor link with screw mandrel rotating shaft with this, and described electromagnetic clutch 400 is connected with described controller;
The transformator of the present invention also includes voltage collector, and not shown in figure, it is arranged on each described secondary coil 140
Outfan, for gathering the output voltage of each phase of transformator, described voltage collector is connected with described controller, will adopt in real time
The transformer output voltage of collection feeds back in controller.
Concrete, every pair of described single-phase transformation coil groups is disposed in described device body 100, every pair of described single-phase transformation line
Circle group is correspondingly arranged on a described screw mandrel rotating shaft and the institute for link described screw mandrel rotating shaft and described reduction gearbox output shaft
State electromagnetic clutch, when the transformator of the present invention is as three monophase type adjustable transformers, every phase transformer is set in the controller
Predeterminated voltage, three electromagnetic clutchs are controlled by controller respectively, subsequently controller control corresponding each electromagnetic clutch
Device links with described rotor gear 111 and reduction gearbox output shaft 310 simultaneously, and controller controls electric machine rotation, and it is right to drive
Answer screw mandrel rotating shaft 110 to rotate and change corresponding conducting ring position on the coil of two wires, namely change the output in a corresponding phase
Voltage, meanwhile, the output voltage of each phase transformer of voltage collector Real-time Collection, and feed back in controller, when wherein one
When the output voltage of phase transformer reaches predeterminated voltage, controller controls corresponding electromagnetic clutch 400 and corresponding described rotor tooth
Wheel 111 and reduction gearbox output shaft 310 depart from, and now, screw mandrel rotating shaft 110 departs from motor 200, and stop rapidly turning
It is dynamic, it is to avoid screw mandrel rotating shaft 110 is rotated further under motor coast and causes output voltage to deviate predeterminated voltage, it is achieved
The regulation of transformator accurate no-load voltage ratio, after three-phase voltage all adjusts, controls motor stalls, when needs are adjusted again
During joint single-phase transformer no-load voltage ratio, continue to control electromagnetic clutch and the motor process of motor by said process.As can be seen here, originally
Invention is provided with electromagnetic clutch on the transformer, is optionally linked the silk on motor and each phase by electromagnetic clutch
Bar rotating shaft 110, arranges the predeterminated voltage of single-phase transformer in the controller, and then controller controls corresponding electromagnetic clutch connection
Galvanic electricity machine and screw mandrel rotating shaft 110, motor drives screw mandrel rotating shaft 110 to rotate the no-load voltage ratio adjusting single-phase transformer, voltage simultaneously
Harvester gather transformator output voltage, when the output voltage of transformator reaches predeterminated voltage, controller control electromagnetism from
Clutch departs from motor and screw mandrel rotating shaft 110, and screw mandrel rotating shaft 110 stops operating rapidly, it is to avoid screw mandrel rotating shaft overtravel rotates,
The independence achieving the regulation of transformator accurate no-load voltage ratio and three-phase transformer controls, efficiently solve the no-load voltage ratio of adjustable transformer without
The technical problem of method controllable precise, and expand the service network of transformator further, go for three independent single-phase
, the transformator that three independent is contained in a device body in circuit, meanwhile, decreases the system using three separated transformers
Cause this.
When transformator needs to apply in three-phase network, three conducting rings 170 are adjusted an identical height and position, then
Three groups of voltage input ends 151 and 152 are connect by star or connect in the way of corner connection, by defeated to three groups of voltage output ends 141 and voltage
Go out end 142 also connect by star or connect in the way of corner connection, i.e. can be transformed into three-phase adjustable transformer, adjusted in concert conducting ring 170
Height and position, namely by controller synchronous interaction control three electromagnetic clutchs, three screw mandrel rotating shafts 110 are synchronized
Control, three conducting rings 170 of Synchronization Control position on secondary coil, three-phase synchronous voltage-regulation can be realized;Need
Illustrate, as it is shown in figure 1, the 3rd group of conducting ring 170, two wires coil 140 and the hand of spiral of screw mandrel rotating shaft 110
With the 3rd group of conducting ring 170, two wires coil 140 and the hand of spiral phase of screw mandrel rotating shaft 110 in other two phase transformer
Anti-setting, during to realize electric machine rotation, three conducting ring 170 adjusted in concert.The present invention is by three single-phase adjustable transforms
Becoming three-phase adjustable transformer, the three-phase transformer after conversion achieves synchronization pressure regulation, it is adaptable in three-phase circuit, meanwhile, and three
Individual single-phase transformer can also be used alone, it is achieved that single-phase voltage regulating, and the transformator of the present invention can be suitable for according to circuit requirements
In single-phase or three-phase circuit, expand the range of transformator.
Described electromagnetic clutch 400 includes that base is arranged on the movable end in described base with flexible, controls movable end at base
Middle activity, can realize described movable end and optionally link described rotor gear 111 and described reduction gearbox output shaft 310.
In another kind of embodiment, as shown in Figure 4, described base is provided centrally with vertical cavity 470, outside described vertical cavity 470
The described base in week is provided with annular chamber 440, described annular chamber 440 is provided with spring 450, described vertical cavity 470
Medial wall on symmetrical offer several and connect described vertical cavity and the vertical channel of annular chamber, the bottom of described base is provided with
The winding coil 460 being connected with power supply, the on and off switch of described winding coil 460 is connected with described controller.
Described movable end includes:
Telescopic shaft 420, it is made up of magnetic material, and described telescopic shaft 420 is movably arranged in described vertical cavity 470, institute
The bottom symmetrical stating telescopic shaft 420 is provided with several blocks 421, and described block 421 is movably arranged in described vertical channel,
And described block 421 is pressed against the upper end of described spring 450, described telescopic shaft 420 center offers axis hole, described axis hole
An annular groove it is provided with on sidewall;
Clutch gear 410, its central authorities lower end is provided with gear shaft 430, and described gear shaft 430 rotates and is arranged on described axis hole
In, and described gear shaft 430 bottom is provided with horizontal sliding wheel 431, described horizontal sliding wheel 431 rotates and is arranged on described annular groove
In so that gear shaft 430 is limited in axis hole rotation, it is to avoid gear shaft 430 is upper and lower relative movement in axis hole, controls institute
State telescopic shaft 420 stretching motion in described vertical cavity 470, can realize described clutch gear 410 optionally simultaneously with
Described rotor gear and the engagement of described reduction gearbox output shaft connect.
Concrete, usual described winding coil 460 is in obtain electricity condition, by downward for the telescopic shaft 420 being made up of magnetic material
Holding, compression spring, clutch gear 410 departs from, in transformation with described rotor gear 111 and reduction gearbox output shaft 310
Before device pressure regulation, arranging the predeterminated voltage of transformator in the controller, controller controls winding coil 460 dead electricity subsequently, at bullet
Under the effect of spring force, telescopic shaft 420 moves upward in vertical cavity 470, promotes clutch gear 410 to move upward, until
Clutch gear 410 links with described rotor gear 111 and reduction gearbox output shaft 310 simultaneously, and now controller control motor turns
Dynamic, drive conducting ring 170 to move axially change output voltage values, meanwhile, voltage collector Real-time Collection on secondary coil
The output voltage of transformator, and feed back in controller, when the output voltage of transformator reaches predeterminated voltage, controller control
Winding coil 460 processed obtains electric, and telescopic shaft 420 is held downwards by winding coil 460, compression spring, and telescopic shaft 420 is hanging down
Straight chamber 470 moves downward, and pulls clutch gear 410 to move downward, until clutch gear 410 simultaneously with described rotor gear
111 and reduction gearbox output shaft 310 depart from, now, screw mandrel rotating shaft 110 departs from motor 200, and stops operating rapidly,
Avoid screw mandrel rotating shaft to be rotated further under motor coast and cause output voltage to deviate predeterminated voltage, it is achieved that transformator
Accurate no-load voltage ratio regulation.
In another kind of embodiment, described device body 100 medial wall is provided with screw thread, the outer ring of each described fluted disc 160 and institute
State the engagement of device body medial wall to connect, for stable fluted disc 160 so that it is keep level, and reduce the liter of fluted disc 160
Fall resistance.
In another kind of embodiment, described device body is filled with transformer oil, is used for lubricating and dispelling the heat.Further, described screw mandrel turns
Axle top and bottom are connected with described device body by bearing 120, effectively reduce the pivoting friction resistance of screw mandrel rotating shaft, simultaneously
Decrease the abrasion of bearing and screw mandrel rotating shaft, further increase screw mandrel axis of rotation degree of accuracy, thus improve the tune of transformator
Pressure degree of accuracy.
From the above mentioned, three single-phase adjustable transforms are become three-phase adjustable transformer by the present invention, the three-phase transformer after conversion
Achieving synchronization pressure regulation, it is adaptable in three-phase circuit, meanwhile, three single-phase transformers can also be used alone, it is achieved that single
Phase pressure regulation, the transformator of the present invention can expand making of transformator according to circuit requirements be applicable to single-phase or three-phase circuit
Use scope;Meanwhile, the transformator of the present invention goes for, in three independent single-phase circuits, expanding transformator further
Service network, the transformator that three are independent is contained in a device body meanwhile, decrease employing three separated transformers
Manufacturing cost;Further, by the setting of electromagnetic clutch, it is achieved that the accurate control of screw mandrel axis of rotation angle,
Namely achieve the most adjustable of transformer voltage ratio, improve the precision of adjustable transformer output voltage.
Although embodiment of the present invention are disclosed as above, but it is not restricted in description and embodiment listed fortune
With, it can be applied to various applicable the field of the invention completely, for those skilled in the art, and can be easily
Realizing other amendment, therefore under the general concept limited without departing substantially from claim and equivalency range, the present invention does not limit
In specific details with shown here as the legend with description.