CN208200242U - A kind of double brake three-phase electric cucurbit - Google Patents
A kind of double brake three-phase electric cucurbit Download PDFInfo
- Publication number
- CN208200242U CN208200242U CN201820436525.3U CN201820436525U CN208200242U CN 208200242 U CN208200242 U CN 208200242U CN 201820436525 U CN201820436525 U CN 201820436525U CN 208200242 U CN208200242 U CN 208200242U
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- phase
- brake
- liter
- decentralization
- contactor
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Abstract
The utility model relates to a kind of double brake three-phase electric cucurbits, including three-phase conic rotor braking motor, reel, reduction gearbox, control cabinet, suspension hook, control button, auxiliary brake and operation circuit；The operation circuit includes main circuit, control circuit and braking circuit；The main circuit includes breaker, hangs a liter contactor, decentralization contactor and three-phase conic rotor braking motor；The control circuit includes hanging liter control circuit and decentralization control circuit；The braking circuit includes brake electromagnetic coil and three-phase rectification bridge；The both ends of the brake electromagnetic coil are separately connected two output ends of three-phase rectification bridge, and three input terminals of three-phase rectification bridge are separately connected three ends of three-phase conic rotor braking motor three-phase windings.The utility model can reduce the auxiliary brake brake electromagnetic coil fever of electric block, energy saving, moreover it is possible to improve auxiliary brake performance.
Description
Technical field
The utility model relates to technical field of crane equipment more particularly to a kind of double brake three-phase electric cucurbits.
Background technique
Three-phase electric cucurbit is widely used in lifting weight, generally by the three-phase conic rotor braking electricity with brake function
Machine drives.To improve safety, the unexpected failure of three-phase conic rotor braking motor brake is prevented, in addition many electric blocks are also set
A set of auxiliary brake is set, auxiliary brake generally uses electromagnetic type, and brake electromagnetic coil is logical when electric block works
Electricity overcomes the elastic force of spring to open auxiliary brake, the power-off of brake electromagnetic coil, auxiliary brake when electric block is shut down
It brakes under the action of the spring.
In existing three-phase electric cucurbit, brake electromagnetic coil is directly powered by a phase line and zero curve, and brake electromagnetic wire
Circle and the winding of three-phase conic rotor braking motor are to be arranged in parallel, the virtual value of both end voltage be it is constant, therefore, no
Pipe is that the moment of auxiliary brake is opened in brake electromagnetic coil energization, or opens the maintenance state after auxiliary brake,
The current effective value of brake electromagnetic coil is identical.In fact, before brake electromagnetic coil is powered, due to brake electromagnetic coil
Iron core and armature have a certain distance, there is magnetic gap therebetween, and the moment for opening auxiliary brake needs biggish electric current
Closed magnetic circuit is formed to generate biggish magnetic force after iron core and armature are closed, magnetic flux increases, and auxiliary brake is maintained to beat
The electric current of open state can greatly reduce.Therefore, after existing three-phase electric cucurbit braking circuit can be opened because of auxiliary brake
Brake solenoid current does not reduce, and leads to electromagnetic coil fever of braking, wastes electric energy, have an effect on the whole of auxiliary brake
Body performance.
Utility model content
The utility model overcomes the deficiencies in the prior art, provides a kind of double brake three-phase electric cucurbit, can reduce auxiliary
Help brake gear brake electromagnetic coil fever, energy saving, moreover it is possible to improve auxiliary brake performance.
The utility model is achieved through the following technical solutions:
A kind of double brake three-phase electric cucurbit, including three-phase conic rotor braking motor, reel, reduction gearbox, control cabinet, hang
Hook, control button, auxiliary brake and operation circuit；The three-phase conic rotor braking motor is set to reel one end, slows down
The other end of one end connection reel of case, control cabinet are set to three-phase conic rotor braking outside motor, suspension hook by wirerope and
Reel connection；The control button hangs a liter button, normally opened decentralization button and normally closed stop button equipped with normally opened；The auxiliary brake
Device is set to the other end of reduction gearbox, which includes shell, brake axle, the brake for being fixed on brake axle one end
Disk, brake electromagnetic coil, brake block, the spring for being fixed on enclosure interior；The high speed of the brake axle other end connection reduction gearbox
Axis, brake block are set between brake disc and brake electromagnetic coil, which can axially move；The spring is set to brake block
Push brake disc between shell end, and by brake block；
The operation circuit includes main circuit, control circuit and braking circuit；
The main circuit includes breaker, hangs a liter contactor, decentralization contactor and three-phase conic rotor braking motor；It is described
Breaker input terminal is separately connected the L1 phase, L2 phase and L3 phase of three phase mains；Liter contactor that hangs is for controlling three-phase taper
Liter is hung in the rotating forward of rotor brake motor, and one end of three of them main contacts is separately connected three output ends of breaker, other end difference
Connect three head ends of three-phase conic rotor braking motor three-phase windings；The decentralization contactor is for controlling three-phase cone rotor
Braking motor reversion decentralization, one end of three of them main contacts are separately connected three output ends of breaker, and the other end is separately connected
Three head ends of three-phase conic rotor braking motor three-phase windings；The control circuit includes hanging liter control circuit and decentralization control
Circuit；
It is described hang zero curve that liter control circuit includes the power supply being serially connected, it is normally opened hang a liter button, decentralization contactor it is normal
The L3 phase closed the second auxiliary contact, hang a liter contactor coil, normally closed stop button and breaker output end；It is described it is normally opened hang rise by
The both ends of button are parallel with the normally opened third auxiliary contact for hanging liter contactor；
The decentralization control circuit includes the zero curve being serially connected, normally opened decentralization button, hangs normally closed the second of liter contactor
The L3 phase of auxiliary contact, decentralization contactor coil, normally closed stop button and breaker output end；The two of the normally opened decentralization button
End is parallel with the normally opened third auxiliary contact of decentralization contactor；
The braking circuit includes brake electromagnetic coil and three-phase rectification bridge；The both ends of the brake electromagnetic coil connect respectively
Two output ends of three-phase rectification bridge are connect, three input terminals of three-phase rectification bridge are separately connected three-phase conic rotor braking motor three
Three ends of phase winding；
A liter contactor, decentralization contactor and the three-phase rectification bridge of hanging is set in control cabinet.
Further, it is described brake electromagnetic coil impedance be the three-phase windings impedance of three-phase conic rotor braking motor 2%~
4%.The power of three-phase conic rotor braking motor is influenced less when the impedance of brake electromagnetic coil is in this range, Bu Huiying
The normal starting and work, performance for ringing three-phase conic rotor braking motor reach preferable state.
Further, it is equipped with outside the reduction gearbox and hangs the limiter for rising and transferring limit stop position for controlling suspension hook,
The limiter and reduction gearbox transmission connection；The limiter is equipped with normally closed upper limit travel switch and normally closed lower bound range switchs, institute
It states normally closed upper limit travel switch and is series at and hang in liter control circuit, normally closed lower bound range switch is series in decentralization control circuit.
It is automatically stopped when setting limiter is for making electric gourd hang hook block rise and transfer in scheduled extreme position, when normally closed upper restricted driving
Cheng Kaiguan or when normally closed lower bound range switch motion, normally-closed contact disconnects, and liter control circuit or decentralization control circuit are hung in cutting,
It hangs liter contactor or decentralization contactor disconnects cutting main circuit, three-phase conic rotor braking motor stalls are simultaneously braked.
The beneficial effects of the utility model are: will brake electromagnetic coil, three-phase rectification bridge and three-phase conic rotor braking electricity
The three-phase windings of machine are connected, and so that three-phase windings is formed star-like connection, brake electromagnetism in three-phase conic rotor braking electric motor starting
Coil generates biggish electromagnetic force and opens auxiliary brake rapidly, and auxiliary brake opens rear braking electromagnetic coil with three
The electric current of phase conic rotor braking motor three-phase windings reduces and is reduced rapidly, and maintains the opening state of auxiliary brake, can
The power of brake electromagnetic coil is reduced, energy saving also makes brake electromagnetic coil temperature rise small, improves braking quality.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the auxiliary brake of the utility model.
Fig. 3 is the circuit diagram of the utility model.
Specific embodiment
As shown in Figures 1 to 3, the embodiments of the present invention, a kind of double brake three-phase electric cucurbit of energy saving, including
Three-phase conic rotor braking motor M, reel 1, reduction gearbox 2, control cabinet 3, suspension hook 4, control button 5, auxiliary brake 6 and fortune
Row circuit；The three-phase conic rotor braking motor M is set to 1 one end of reel, and one end of reduction gearbox 2 connects the other end of reel 1,
Control cabinet 3 is set to outside three-phase conic rotor braking motor M, and suspension hook 4 is connected by wirerope 7 and reel 1；The control button
5 hang a liter button SB1, normally opened decentralization button SB2 and normally closed stop button SB3 equipped with normally opened；The auxiliary brake 6, which is set to, to be subtracted
The other end of fast case 2, the auxiliary brake 6 include shell 8, brake axle 9, the brake disc 10 for being fixed on 9 one end of brake axle, consolidate
Brake electromagnetic coil YA, brake block 11, spring 12 inside shell 8；9 other end of the brake axle connection reduction gearbox 2
High speed shaft, brake block 11 are set between brake disc 10 and brake electromagnetic coil YA, which can axially move；The bullet
Spring 12 is set between 8 end of brake block 11 and shell, and pushes brake block 11 to brake disc 10；
The operation circuit includes main circuit, control circuit and braking circuit；
The main circuit includes circuit breaker Q F, hangs a liter contactor KM1, decentralization contactor KM2 and three-phase conic rotor braking
Motor M；The circuit breaker Q F input terminal is separately connected the L1 phase, L2 phase and L3 phase of three phase mains；Liter contactor KM1 that hangs is used
Liter is hung in control three-phase conic rotor braking motor M rotating forward, one end of three of them main contacts KM1-1 is separately connected circuit breaker Q F's
Three output ends, the other end are separately connected three head ends U, V, W of three-phase conic rotor braking motor M three-phase windings；Under described
Contactor KM2 is put for controlling three-phase conic rotor braking motor M reversion decentralization, one end difference of three of them main contacts KM2-1
Three output ends of circuit breaker Q F are connected, the other end is separately connected three head of three-phase conic rotor braking motor M three-phase windings
Hold W, V, U；The control circuit includes hanging liter control circuit and decentralization control circuit；
It is described to hang zero curve N that liter control circuit includes the power supply being sequentially connected in series, normally opened hang a liter button SB1, decentralization contactor
The normally closed second auxiliary contact KM2-2 of KM2, a liter contactor KM1 coil, normally closed stop button SB3 and circuit breaker Q F output end are hung
L3 phase；The normally opened liter both ends of button SB1 of hanging are parallel with the normally opened third auxiliary contact KM1-3 for hanging liter contactor KM1；
The decentralization control circuit includes the zero curve N being sequentially connected in series, normally opened decentralization button SB2, hangs the normal of liter contactor KM1
Close the L3 phase of the second auxiliary contact KM1-2, decentralization contactor KM2 coil, normally closed stop button SB3 and circuit breaker Q F output end；
The both ends of the normally opened decentralization button SB2 are parallel with the normally opened third auxiliary contact KM2-3 of decentralization contactor KM2；
The braking circuit includes brake electromagnetic coil YA and three-phase rectification bridge UR；The both ends of the brake electromagnetic coil YA
Two output ends of three-phase rectification bridge UR are separately connected, three input terminals of three-phase rectification bridge UR are separately connected three-phase cone rotor
Three ends X, Y, Z of braking motor M three-phase windings；
It is described hang a liter contactor KM1, decentralization contactor KM2 and three-phase rectification bridge UR be set in control cabinet 3.
Make electric gourd hang hook block rise when, close circuit breaker Q F, press it is normally opened hang a liter button SB1, hang a liter control circuit
It connects, hangs a liter contactor KM1 and obtain electric actuation, main contacts KM1-1 closure, main circuit, braking circuit are turned on, and three-phase taper turns
When sub- braking motor M just starts, three-phase windings starting current is larger, and the electric current for the electromagnetic coil YA that brakes is similarly larger, produces
Raw biggish electromagnetic force makes brake block 11 that the thrust of spring 12 and the separation of brake disc 10 be overcome to open auxiliary brake 6, brake
Disk 10 and brake axle 9 are free to rotate；The iron core and brake block 11 of brake electromagnetic coil YA is pulled together, and forms closed magnetic circuit
Magnetic flux is set to increase；End X, Y, Z of the three-phase windings of three-phase conic rotor braking motor M are through three-phase rectification bridge UR and brake simultaneously
Vehicle electromagnetic coil YA constitutes circuit, and at star-like connection, three-phase conic rotor braking motor M rotates forward starting；Three-phase cone rotor system
Its three-phase windings electric current is reduced rapidly after dynamic motor M starting, and the electric current of brake electromagnetic coil YA is also reduced rapidly simultaneously, but at this time
Since auxiliary brake 6 is in the open state, the iron core and brake block 11 of brake electromagnetic coil YA has been pulled together, shape
At closed magnetic circuit, the electromagnetic force of generation maintains the opening state of auxiliary brake 6 enough, can thus reduce brake electromagnetic wire
The power of YA is enclosed, electric energy is saved, can also reduce the iron core fever of brake electromagnetic coil YA, improve braking quality.Hang a liter contactor
After KM1 obtains electric actuation, normally opened third auxiliary contact KM1-3 closed pair is normally opened hang liter button SB1 carry out it is in parallel self-locking, it is normally closed
Second auxiliary contact KM1-2 disconnects cutting decentralization control circuit, protects to decentralization control circuit, even if pressing at this time normally opened
Button SB2 is transferred, decentralization contactor KM2 coil can not energized action；When stopping suspension hook and hanging liter, normally closed stop button is pressed
A liter control circuit is hung in SB3 cutting, hangs a liter contactor KM1 power loss, and main contacts KM1-1 is disconnected, and main circuit and braking circuit lose
Electricity, three-phase conic rotor braking motor M is out of service, and the ejection brake disc 10 under the action of spring 12 of brake block 11 makes brake disc
10 stop operating and brake, and hang normally closed second auxiliary contact KM1-2, the normally opened third auxiliary contact KM1-3 of liter contactor KM1
Reset.
Similarly, when transferring electric hoist suspension hook, circuit breaker Q F is closed, presses normally opened decentralization button SB2, decentralization control
Circuit is connected, and decentralization contactor KM2 obtains electric actuation, and main contacts KM2-1 closure, main circuit, braking circuit are turned on, are braking
Auxiliary brake 6 is opened under the action of electromagnetic coil YA, three-phase conic rotor braking motor M reversion starting starts rear braking
Electromagnetic coil YA electric current reduces the opening state for maintaining auxiliary brake 6；It is normally opened after decentralization contactor KM2 obtains electric actuation
The normally opened decentralization button SB2 progress of third auxiliary contact KM2-3 closed pair is in parallel self-locking, and normally closed second auxiliary contact KM2-2 is disconnected
It opens cutting and hangs a liter control circuit, protected to a liter control circuit is hung；When stopping suspension hook decentralization, normally closed stop button is pressed
SB3 cutting decentralization control circuit, makes main circuit and the equal power loss of braking circuit, three-phase conic rotor braking motor M is out of service, auxiliary
It helps brake gear 6 to brake under the action of spring 12, transfers the normally closed second auxiliary contact KM2-2, normally opened of contactor KM2
Third auxiliary contact KM2-3 also resets.
In the present embodiment, the impedance of the brake electromagnetic coil YA is the resistance of three-phase conic rotor braking motor M three-phase windings
Anti- 2%~4%.The impedance of brake electromagnetic coil YA influences the power of three-phase conic rotor braking motor M when being in this range
Less, it will not influence normally starting and running for three-phase conic rotor braking motor M, performance reaches preferable state.
It is equipped in the present embodiment, outside the reduction gearbox 2 and hangs the limit for rising and transferring limit stop position for controlling suspension hook 4
Position device 13, the limiter 13 and reduction gearbox 2 are sequentially connected；The limiter 13 is equipped with normally closed upper limit travel switch SQ1 and normally closed
Lower bound range switch SQ2, the normally closed upper limit travel switch SQ1, which is series at, to be hung in liter control circuit, normally closed lower bound range switch
SQ2 is series in decentralization control circuit.In scheduled pole when setting limiter 13 rises and transfers for hanging electric hoist suspension hook 4
Extreme position is automatically stopped, and when normally closed upper limit travel switch SQ1 or normally closed lower bound range switch SQ2 is acted, normally-closed contact is disconnected
It opens, liter control circuit or decentralization control circuit are hung in cutting, and it hangs liter contactor KM1 or decentralization contactor KM2 disconnects cutting main circuit,
Three-phase conic rotor braking motor M stops operating and brakes.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, any change or replacement expected without creative work be should be covered within the scope of the utility model.
Therefore, the protection scope of the utility model should be determined by the scope of protection defined in the claims.
Claims (3)
1. a kind of double brake three-phase electric cucurbit, including three-phase conic rotor braking motor, reel, reduction gearbox, control cabinet, hang
Hook, control button, auxiliary brake and operation circuit；The three-phase conic rotor braking motor is set to reel one end, slows down
The other end of one end connection reel of case, control cabinet are set to three-phase conic rotor braking outside motor, suspension hook by wirerope and
Reel connection；The control button hangs a liter button, normally opened decentralization button and normally closed stop button equipped with normally opened；The auxiliary brake
Device is set to the other end of reduction gearbox, which includes shell, brake axle, the brake for being fixed on brake axle one end
Disk, brake electromagnetic coil, brake block, the spring for being fixed on enclosure interior；The high speed of the brake axle other end connection reduction gearbox
Axis, brake block are set between brake disc and brake electromagnetic coil, which can axially move；The spring is set to brake block
Push brake disc between shell end, and by brake block；
The operation circuit includes main circuit, control circuit and braking circuit；
The main circuit includes breaker, hangs a liter contactor, decentralization contactor and three-phase conic rotor braking motor；The open circuit
Device input terminal is separately connected the L1 phase, L2 phase and L3 phase of three phase mains；Liter contactor that hangs is for controlling three-phase cone rotor
Liter is hung in braking motor rotating forward, and one end of three of them main contacts is separately connected three output ends of breaker, and the other end is separately connected
Three head ends of three-phase conic rotor braking motor three-phase windings；The decentralization contactor is for controlling three-phase conic rotor braking
Motor reversal decentralization, one end of three of them main contacts are separately connected three output ends of breaker, and the other end is separately connected three-phase
Three head ends of conic rotor braking motor three-phase windings；The control circuit includes hanging liter control circuit and decentralization control electricity
Road；
It is described hang zero curve that liter control circuit includes the power supply being serially connected, it is normally opened hang a liter button, decentralization contactor normally closed the
Two auxiliary contact, the L3 phase for hanging a liter contactor coil, normally closed stop button and breaker output end；The normally opened liter button of hanging
Both ends are parallel with the normally opened third auxiliary contact for hanging liter contactor；
The decentralization control circuit includes the zero curve being serially connected, normally opened decentralization button, normally closed second auxiliary for hanging liter contactor
Contact, the L3 phase for transferring contactor coil, normally closed stop button and breaker output end；The both ends of the normally opened decentralization button are simultaneously
It is associated with the normally opened third auxiliary contact of decentralization contactor；It is characterized by:
The braking circuit includes brake electromagnetic coil and three-phase rectification bridge；The both ends of the brake electromagnetic coil are separately connected three
Two output ends of commutating phase bridge, three input terminals of three-phase rectification bridge be separately connected three-phase conic rotor braking motor three-phase around
Three ends of group；
A liter contactor, decentralization contactor and the three-phase rectification bridge of hanging is set in control cabinet.
2. a kind of double brake three-phase electric cucurbit according to claim 1, it is characterised in that: the brake electromagnetic coil
Impedance is the 2%~4% of three-phase conic rotor braking motor three-phase windings impedance.
3. a kind of double brake three-phase electric cucurbit according to claim 1, it is characterised in that: be equipped with outside the reduction gearbox
The limiter for rising and transferring limit stop position, the limiter and reduction gearbox transmission connection are hung for controlling suspension hook；The limit
Device is equipped with normally closed upper limit travel switch and normally closed lower bound range switchs, and the normally closed upper limit travel switch, which is series at, hangs a liter control electricity
Lu Zhong, normally closed lower bound range switch are series in decentralization control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820436525.3U CN208200242U (en) | 2018-03-29 | 2018-03-29 | A kind of double brake three-phase electric cucurbit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820436525.3U CN208200242U (en) | 2018-03-29 | 2018-03-29 | A kind of double brake three-phase electric cucurbit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208200242U true CN208200242U (en) | 2018-12-07 |
Family
ID=64525628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820436525.3U Expired - Fee Related CN208200242U (en) | 2018-03-29 | 2018-03-29 | A kind of double brake three-phase electric cucurbit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208200242U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110526147A (en) * | 2019-08-27 | 2019-12-03 | 成都金瑞建工机械有限公司 | A kind of bucket proposes mixing plant hopper protective device |
| CN112706876A (en) * | 2021-01-07 | 2021-04-27 | 英辉南方造船（广州番禺）有限公司 | Electric reversible mast device and ship applying same |
-
2018
- 2018-03-29 CN CN201820436525.3U patent/CN208200242U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110526147A (en) * | 2019-08-27 | 2019-12-03 | 成都金瑞建工机械有限公司 | A kind of bucket proposes mixing plant hopper protective device |
| CN110526147B (en) * | 2019-08-27 | 2021-10-22 | 成都金瑞建工机械有限公司 | Hopper protection device of hopper lifting mixing station |
| CN112706876A (en) * | 2021-01-07 | 2021-04-27 | 英辉南方造船（广州番禺）有限公司 | Electric reversible mast device and ship applying same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181207 Termination date: 20190329 |