CN206076077U - The drive mechanism and automatic change-over of automatic change-over - Google Patents
The drive mechanism and automatic change-over of automatic change-over Download PDFInfo
- Publication number
- CN206076077U CN206076077U CN201621122744.1U CN201621122744U CN206076077U CN 206076077 U CN206076077 U CN 206076077U CN 201621122744 U CN201621122744 U CN 201621122744U CN 206076077 U CN206076077 U CN 206076077U
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- China
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- crank
- drive mechanism
- crankshaft
- over
- automatic change
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Abstract
The utility model discloses a kind of drive mechanism of automatic change-over, including mounting bracket, toggle, the toggle includes crank, crankshaft, connecting rod, crankshaft is installed in the mounting bracket, the crank is sheathed on crankshaft and can be around crank axis of rotation, one end of crank is hinged with one end of connecting rod, and the power transmission shaft with the moving contact mechanical couplings of automatic change-over is vertically installed with crank；The crank is by two parallel sleeves are on crankshaft and can constitute around the rotatable lamella of crank axis of rotation, it is fixedly connected between two rotatable lamellas, packing ring is arranged with crankshaft between two rotatable lamellas, the both sides of crank are separately provided for limiting the limit casing that crank is moved axially on crankshaft on crankshaft.The invention also discloses a kind of automatic change-over.This utility model drive mechanism is rotating speed is fast, stress it is big in the case of deformation is less likely to occur, with higher reliability.
Description
Technical field
This utility model is related to automatic change-over, more particularly to a kind of drive mechanism of automatic change-over, belongs to low
Voltage electrical technical field.
Background technology
Automatic change-over is mainly used in important power supply place, can not continue as load when power supply all the way goes wrong
Another road power supply is switched to when equipment is powered, so as to the normal work of proof load equipment.Existing automatic change-over is generally wrapped
Electromagnetic drive mechanism and drive mechanism are included, wherein electromagnetic drive mechanism includes the static iron core fixed position and can do to static iron core
The dynamic iron core of Relative sliding（The electromagnetic force produced by coil magnetization）；And drive mechanism generally adopts toggle, will
The slip of dynamic iron core is converted to the separation/adhesive between the dynamic/static contact in the rotation of crank, and then driving contact system.
, much using the crank of plastic material, this structural strength is poor, plastics for the drive mechanism of existing automatic change-over
Crank and the easy cracking damage in connecting rod junction.Although the crank using metal material can solve the above problems, metal crank
Position skew is easily produced on crankshaft, rotating speed is fast, stress it is big in the case of be susceptible to deformation, affect automatic conversion
The reliability of switch.Additionally, the crank of metal material often has larger quality and inertia, the speed that power supply can be affected to switch
With precise control.
Utility model content
Technical problem to be solved in the utility model is to overcome prior art not enough, there is provided a kind of automatic change-over
Drive mechanism, rotating speed is fast, stress it is big in the case of deformation is less likely to occur, with higher reliability.
This utility model specifically employs the following technical solutions solution above-mentioned technical problem：
A kind of drive mechanism of automatic change-over, including mounting bracket, toggle, the toggle
Including crank, crankshaft, connecting rod, crankshaft is installed in the mounting bracket, and the crank is sheathed on crankshaft
And the connecting rod that can be driven with the electromagnetic drive mechanism by described automatic change-over around crank axis of rotation, one end of crank
504 one end is hinged, and the power transmission shaft with the moving contact mechanical couplings of automatic change-over is vertically installed with crank；The crank
It is by two parallel sleeves are on crankshaft and can constitute around the rotatable lamella of crank axis of rotation, fixed between two rotatable lamellas to connect
Connect, on the crankshaft between two rotatable lamellas, be arranged with packing ring, the both sides of crank are respectively provided with useful on crankshaft
In the limit casing that restriction crank is moved axially on crankshaft.
Preferably, the limit casing be non-magnet material, such as nonmetallic or copper alloy or rustless steel etc..
Preferably, the shapes and sizes of two rotatable lamellas are identical.
Preferably, described rotatable lamella is non-magnetic metal material, such as copper alloy or rustless steel.
Preferably, the connecting rod includes two symmetrically arranged connecting rods one-to-one with described two rotatable lamellas, per root
One end of connecting rod is hinged with rotatable lamella corresponding to which.
Preferably, achieved a fixed connection by least one set pin between two rotatable lamellas.
Further, the Lightened structure being made up of one group of through hole and/or groove is provided with the rotatable lamella.
Technical scheme below can also be obtained according to identical invention thinking：
A kind of automatic change-over, including electromagnetic drive mechanism and as above drive mechanism described in arbitrary technical scheme；It is described
Electromagnetic drive mechanism includes the static iron core fixed position and the dynamic iron core that relative translation can be done to the static iron core, the dynamic ferrum
Core is hinged with the other end of connecting rod in drive mechanism.
Preferably, the power transmission shaft on the crank realizes mechanical couplings by idle pulley with the moving contact of automatic change-over.
Compared to existing technology, this utility model has the advantages that：
This utility model has carried out structure improvement to the toggle as driving gear of auto transfer switch, adopts
Packing ring is arranged on the crank constituted by two rotatable lamellas, and the crankshaft between two rotatable lamellas, it is bent on crankshaft
The both sides of handle are respectively arranged to the limit casing for limiting axial movement of the crank on crankshaft, on the one hand effectively prevent
Skew of the crank on crankshaft, is unlikely to deform, it is ensured that reliability；On the other hand the quality of crank can be reduced, which is reduced
Overall rotator inertia, improves speed and the precise control of power supply switching.
Description of the drawings
Fig. 1 is the integral installation structural representation of automatic change-over in specific embodiment；
Fig. 2 is the overall structure diagram of automatic change-over in specific embodiment；
Structural representations of the Fig. 3 for operating mechanism；
Blast installation diagrams of the Fig. 4 for operating mechanism；
Structural representations of the Fig. 5 for drive mechanism；
In figure, each label implication is as follows：
1st, pedestal, 2, housing, 3, contact mechanism, 301, idle pulley, 302 limiting plates, 303, installed part, 4, Electromagnetic Drive machine
Structure, 401, support, 402, dynamic iron core, 403, static iron core, 404, guide cylinder, 405, spring, 406, magnetic conductive board, 407, coil, 5,
Drive mechanism, 501, mounting bracket, 5011, substrate, 5012, side plate；502nd, rotatable lamella, 503, crankshaft, 504, connecting rod,
505th, packing ring, 506, limit casing, 507, power transmission shaft, the 508, first limiting section, the 509, second limiting section, 510, pin.
Specific embodiment
Below in conjunction with the accompanying drawings the technical solution of the utility model is described in detail：
Fig. 1, Fig. 2 show the basic structure of one specific embodiment of this utility model automatic change-over, such as Fig. 1 institutes
Show, the automatic change-over includes pedestal 1, housing 2, the contact mechanism 3 being arranged on pedestal 1, and operating mechanism.Contact machine
Structure 3 includes moving contact, moving contact axle（Not shown in figure）, and idle pulley 301 of the center on moving contact axle, by idle pulley 301
The torque provided by operating mechanism can be passed to moving contact with moving contact axle so that moving contact action, so as to realize active and standby electricity
The switching in source.
Fig. 3, Fig. 4 show the basic structure of the operating mechanism in automatic change-over shown in Fig. 1, and which includes Electromagnetic Drive
Mechanism 4 and drive mechanism 5.
As shown in Figure 3,4, electromagnetic drive mechanism 4 includes support 401, dynamic iron core 402, static iron core 403, guide cylinder 404, bullet
Electromagnetic drive mechanism 4 is fixed with the pedestal 1 by spring 405, magnetic conductive board 406, coil 407 by support 401, and static iron core 403 is solid
The bottom of support 401 is scheduled on, spring 405 and dynamic iron core 402 are contained in guide cylinder 404, and coil 407 is arranged on guide cylinder 404
Outward, magnetic conductive board 406 is fixedly connected by screw assembly with support 401.
One end of spring 405 is resisted against on static iron core 403, and the other end is resisted against in dynamic iron core 402, automatic change-over
Controller sends conversion signal, powers to electromagnetic drive mechanism 4,403 adhesive dynamic iron core 402 of static iron core so that dynamic iron core 402 exists
Move towards static iron core 403 in guide cylinder 404, while 402 compression spring 405 of dynamic iron core so that 405 energy storage of spring；Conversely, working as
The controller of automatic change-over stops the power supply of electromagnetic drive mechanism 4, the magnet attraction between static iron core 403 and dynamic iron core 402
Power disappears, and spring 405 promotes dynamic iron core 402, and dorsad static iron core 403 is moved.
The structure of drive mechanism 5 as shown in Fig. 3,4,5, including mounting bracket 501 and the song being installed in mounting bracket 501
Handle linkage, toggle is for the translation of dynamic iron core 402 to be converted to the rotation of crank, and then drives contact system
In dynamic/static contact between separation/closure.
Mounting bracket 501 includes the substrate 5011 the being fixedly connected side plate 5012 parallel with two pieces, magnetic conductive board 406 and substrate
5011 are connected by screw fixation, and the limiting plate 302 on contact mechanism is located between magnetic conductive board and substrate 5011, for determining electricity
The relative position of magnetic device and contact mechanism.
Installed part 303 is provided with contact mechanism, one of side plate 5012 near contact mechanism is fixed with installed part
Connection so that side plate 5012 can be reliable and stable.
Toggle includes crank, crankshaft, connecting rod, and wherein crankshaft 503 is arranged in mounting bracket 501
Between two blocks of side plates 5012, crank is sheathed on crankshaft 503 and can rotate around crankshaft 503.Different from existing single turn
The crank structure of moving plate, crank of the present utility model are located on crankshaft 503 by two parallel sleeves and can be around crankshafts 503
The identical rotatable lamella 502 of rotation is constituted, and is relatively fixed connection by three pins 510 between two rotatable lamellas 502；In order to anti-
Rotation stop moving plate stress deformation, is arranged with packing ring 505 on the crankshaft 503 between two rotatable lamellas 502；In order to limit rotation
The position of piece, prevents which from moving axially, and on crankshaft 503, the both sides of two rotatable lamellas 502 are separately provided for limiting
The limit casing 506 of 503 axial movements on crankshaft of rotatable lamella 502, wherein limit casing 506 preferably adopt copper alloy system
Into.Power transmission shaft 507 is accessed after passing perpendicularly through two rotatable lamellas 502 in the mounting hole on idle pulley 303, and power transmission shaft 507 is rotated can band
Dynamic idle pulley 303 is rotated, and idle pulley 303 is rotated and drives moving contact 301 to rotate.
Different from the bar linkage structure of single connecting rod of the prior art, the connecting rod in the present embodiment includes and two rotatable lamellas
502 one-to-one two symmetrically arranged connecting rods 504, one end of every connecting rod 504 is hinged with rotatable lamella corresponding to which 502；
Installing hole is provided with dynamic iron core 402, the other end of two connecting rods 504 is connected to the both sides of dynamic iron core 402 respectively by pin.
It is provided with two rotatable lamellas 502 spacing for limiting the first limiting section 508 and second of crank turned position
Portion 509, two limiting sections coordinate with dynamic iron core respectively cause crank in the closing position corresponding to active and standby power supply two it is spacing
One of them of portion can be abutted against with dynamic iron core so that crank is in stable state.
Each part of the drive mechanism in the present embodiment adopts metal material, and intensity is high, can be used for needing quickly to cut
The occasion changed, wherein rotatable lamella are non-magnetic metal material, and preferred rustless steel, packing ring adopt non-magnet material, preferred copper alloy,
Can prevent between dynamic iron core and rotatable lamella and packing ring, producing magnetic force, affect the conversion of mechanism.
This utility model is also provided with the Lightened structure being made up of one group of through hole and/or groove on two rotatable lamellas 502,
The weight of crank can be reduced so that Power convert speed further can be improved.
The controller of automatic change-over sends conversion signal, powers to electromagnetic drive mechanism 4, and 403 adhesive of static iron core is moved
Iron core 402 so that dynamic iron core 402 is moved towards static iron core 403 in guide cylinder 404, while dynamic iron core 402 presses spring 405
Contracting, so as to drive two rotatable lamellas 502 to rotate, the power transmission shaft 507 being connected on two rotatable lamellas 502 is also and then rotated, and then
Promote idle pulley 303 to rotate, be connected together due to idle pulley 303 and moving contact axle 302, thus moving contact axle 302 can here
During rotate together, idle pulley 303 is an inertia member, its Mass Distribution away from center of rotation, when 4 power-off of drive mechanism and
During without dead point, mechanism is rotated further by mechanism dead point by the inertia of itself kinetic energy and idle pulley, when dead point was got rid of by mechanism
Afterwards, now spring 405 discharges, and dynamic iron core 402 is moved to the direction away from static iron core 403, i.e., stand-by power supply closes a floodgate.Otherwise then
It is stand-by power supply to conventional Power convert.
Claims (8)
1. a kind of drive mechanism of automatic change-over, including mounting bracket, toggle, the toggle bag
Crank, crankshaft, connecting rod are included, crankshaft is installed in the mounting bracket, and the crank is sheathed on crankshaft simultaneously
The one of the connecting rod that can be driven with the electromagnetic drive mechanism by described automatic change-over around crank axis of rotation, one end of crank
End is hinged, and the power transmission shaft with the moving contact mechanical couplings of automatic change-over is vertically installed with crank；Characterized in that, described
Crank is by two parallel sleeves are on crankshaft and can constitute around the rotatable lamella of crank axis of rotation, solid between two rotatable lamellas
It is fixed to connect, packing ring is arranged with the crankshaft between two rotatable lamellas, on crankshaft, the both sides of crank are respectively provided with
Have for limiting the limit casing that crank is moved axially on crankshaft.
2. drive mechanism as claimed in claim 1, it is characterised in that the limit casing is non-magnet material.
3. drive mechanism as claimed in claim 1, it is characterised in that described rotatable lamella is non-magnetic metal material.
4. drive mechanism as claimed in claim 1, it is characterised in that be provided with the rotatable lamella by one group of through hole and/or
The Lightened structure that groove is constituted.
5. drive mechanism as claimed in claim 1, it is characterised in that the connecting rod includes and one a pair of described two rotatable lamellas
The two symmetrically arranged connecting rods answered, one end of every connecting rod is hinged with rotatable lamella corresponding to which.
6. drive mechanism as claimed in claim 1, it is characterised in that realized by least one set pin between two rotatable lamellas
It is fixedly connected.
7. a kind of automatic change-over, including electromagnetic drive mechanism and drive mechanism described in any one of claim 1～6；It is described
Electromagnetic drive mechanism includes the static iron core fixed position and the dynamic iron core that relative translation can be done to the static iron core, the dynamic ferrum
Core is hinged with the other end of connecting rod in drive mechanism.
8. automatic change-over as claimed in claim 7, it is characterised in that the power transmission shaft and automatic change-over on the crank
Moving contact mechanical couplings are realized by idle pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621122744.1U CN206076077U (en) | 2016-10-14 | 2016-10-14 | The drive mechanism and automatic change-over of automatic change-over |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621122744.1U CN206076077U (en) | 2016-10-14 | 2016-10-14 | The drive mechanism and automatic change-over of automatic change-over |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206076077U true CN206076077U (en) | 2017-04-05 |
Family
ID=58440921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621122744.1U Active CN206076077U (en) | 2016-10-14 | 2016-10-14 | The drive mechanism and automatic change-over of automatic change-over |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206076077U (en) |
-
2016
- 2016-10-14 CN CN201621122744.1U patent/CN206076077U/en active Active
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