CN209651769U - A kind of energy conservation double brake three-phase electric cucurbit - Google Patents
A kind of energy conservation double brake three-phase electric cucurbit Download PDFInfo
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- CN209651769U CN209651769U CN201920189294.5U CN201920189294U CN209651769U CN 209651769 U CN209651769 U CN 209651769U CN 201920189294 U CN201920189294 U CN 201920189294U CN 209651769 U CN209651769 U CN 209651769U
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Abstract
A kind of energy conservation double brake three-phase electric cucurbit, including three-phase conic rotor braking motor, reel, reduction gearbox, control cabinet, suspension hook, control button, complemental brake system and operation circuit；Running circuit includes main circuit, control circuit and braking circuit, main circuit includes breaker, hangs a liter contactor, decentralization contactor and three-phase conic rotor braking motor, control circuit includes hanging liter control circuit and decentralization control circuit, brake solenoid is equipped with restraining coil and tandem brake coil in parallel, and braking circuit includes braking circuit and tandem brake circuit in parallel；Braking circuit in parallel includes restraining coil, single-phase rectification bridge and on-delay type time relay coil in parallel；Tandem brake circuit includes normally opened first contact and normally opened second contact of tandem brake coil, three-phase rectification bridge, the time relay.The utility model can reduce the fever of complemental brake system brake solenoid, energy saving, moreover it is possible to improve complemental brake system performance.
Description
Technical field
The utility model relates to technical field of crane equipment more particularly to a kind of energy saving 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 braking function
Machine drives.To improve safety, the unexpected failure of three-phase conic rotor braking motor braking is prevented, in addition many electric blocks are also set
A set of complemental brake system is set, complemental brake system generally uses electromagnetic type, and it is logical that electric block work schedule moves electromagnetic coil
Electricity overcomes the elastic force of spring to open complemental brake system, and brake solenoid powers off when electric block is shut down, complemental brake system
It is braked under the action of the spring.
In existing three-phase electric cucurbit, brake solenoid is made of a winding, direct by a phase line and zero curve
The winding of power supply, brake solenoid and three-phase conic rotor braking motor is to be arranged in parallel, and the virtual value of both end voltage is
Constant, therefore, either brake solenoid, which is powered, opens the moment of complemental brake system, or opens auxiliary braking dress
The maintenance state postponed, the current effective value of brake solenoid are identical.In fact, before brake solenoid is powered, by
There is a certain distance in the iron core and armature of brake solenoid, there is magnetic gap therebetween, open the wink of complemental brake system
Between need biggish electric current to generate biggish magnetic force, after iron core and armature closure, form closed magnetic circuit, magnetic flux increases, and ties up
The electric current for holding complemental brake system opening state can greatly reduce.Therefore, existing three-phase electric cucurbit braking circuit can be because auxiliary
Brake solenoid electric current does not reduce after helping brake apparatus to open, and brake solenoid is caused to generate heat, and wastes electric energy, has an effect on
The overall performance of complemental brake system.
Utility model content
The utility model overcomes the deficiencies in the prior art, provides a kind of energy saving double brake three-phase electric cucurbit, can subtract
Small complemental brake system brake solenoid fever, energy saving, moreover it is possible to improve complemental brake system performance.
The utility model is achieved through the following technical solutions:
A kind of energy conservation double brake three-phase electric cucurbit, including three-phase conic rotor braking motor, reel, reduction gearbox, control
Case, suspension hook, control button, complemental brake system and operation circuit；The control button hangs a liter button, normally opened decentralization equipped with normally opened
Button and normally closed stop button；The complemental brake system is equipped with brake solenoid；The operation circuit includes main circuit, control
Circuit and braking circuit processed；The main circuit includes the three phase mains of three-phase four-wire system, breaker, hang a liter contactor, decentralization connects
Tentaculum and three-phase conic rotor braking motor；The control circuit includes hanging liter control circuit and decentralization control circuit；
The brake solenoid is equipped with restraining coil and tandem brake coil in parallel；The braking circuit includes system in parallel
Dynamic circuit and tandem brake circuit；
The parallel connection braking circuit includes restraining coil, single-phase rectification bridge and on-delay type time relay line in parallel
Circle；The both ends of the parallel connection restraining coil are separately connected two output ends of single-phase rectification bridge, two inputs of single-phase rectification bridge
End is separately connected the zero curve of three phase mains and a head end of three-phase conic rotor braking motor three-phase windings, time relay line
The both ends of circle are separately connected a head end of zero curve and three-phase conic rotor braking motor three-phase windings；
The tandem brake circuit includes normally opened first contact of tandem brake coil, three-phase rectification bridge, the time relay
With normally opened second contact；The both ends of the tandem brake coil are separately connected two output ends of three-phase rectification bridge, three phase rectifier
Three input terminals of bridge are separately connected three ends of three-phase conic rotor braking motor three-phase windings, the time relay it is normally opened
Three of the both ends interconnection three-phase conic rotor braking motor three-phase windings at the both ends of the first contact and normally opened second contact
End.
Further, the three-phase conic rotor braking motor is set to reel one end, and one end of reduction gearbox connects the another of reel
One end, control cabinet are set to three-phase conic rotor braking outside motor, and suspension hook is connected by wirerope with reel.
Further, the complemental brake system is set to the other end of reduction gearbox, which includes shell, braking
Axis, the brake disc for being fixed on brake axle one end, the brake solenoid for being fixed on enclosure interior, brake(-holder) block, spring；The braking
The axis other end connects the high speed shaft of reduction gearbox, and brake(-holder) block is set between brake disc and brake solenoid, which can do axis
To movement；The spring is set between brake(-holder) block and shell end, and pushes brake(-holder) block to brake disc.
Further, the breaker input terminal is separately connected the L1 phase, L2 phase and L3 phase of three phase mains；It is described to hang a liter contact
Device hangs liter for controlling the rotating forward of three-phase conic rotor braking motor, and one end of three of them main contacts is separately connected three of breaker
Output end, the other end are separately connected three head ends of three-phase conic rotor braking motor three-phase windings；The decentralization contactor is used
In control three-phase conic rotor braking motor reversal decentralization, one end of three of them main contacts is separately connected three outputs of breaker
End, the other end are separately connected three head ends of three-phase conic rotor braking motor three-phase windings.
Further, described to hang zero curve that liter control circuit includes the power supply being serially connected, normally opened hang a liter button, decentralization contact
Normally closed second auxiliary contact of device, the L3 phase for hanging a liter contactor coil, normally closed stop button and breaker output end；It is described normally opened
The both ends for hanging liter button are parallel with the normally opened third auxiliary contact for hanging liter contactor；The decentralization control circuit includes being serially connected
Zero curve, it is normally opened decentralization button, hang liter contactor normally closed second auxiliary contact, decentralization contactor coil, normally closed stop button
With the L3 phase of breaker output end；The both ends of the normally opened decentralization button are parallel with the normally opened third auxiliary touching of decentralization contactor
Point.
Further, the impedance of the tandem brake coil 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 tandem brake 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.
Further, it is described hang a liter contactor, decentralization contactor, the time relay, three-phase rectification bridge and single-phase rectification bridge it is equal
In control cabinet.
The beneficial effects of the utility model are: brake solenoid is divided into restraining coil and tandem brake coil in parallel,
By the delays time to control of the time relay, by restraining coil in parallel and tandem brake when making three-phase conic rotor braking electric motor starting
Coil generates biggish electromagnetic force jointly and opens complemental brake system rapidly, complemental brake system open after only by brake line in parallel
Circle provides the opening state that electromagnetic force maintains complemental brake system, can reduce the overall power of brake solenoid, energy saving,
Also make brake solenoid temperature rise small, improves braking ability；Alternating current is rectified into direct current through three-phase rectification bridge and single-phase rectification bridge
Input brake electromagnetic coil after electricity can make brake solenoid work more stable.
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 complemental brake system of the utility model.
Fig. 3 is the circuit diagram of the utility model.
In figure: reel 1, reduction gearbox 2, control cabinet 3, suspension hook 4, control button 5, complemental brake system 6, wirerope 7, shell
8, brake axle 9, brake disc 10, brake(-holder) block 11, spring 12, limiter 13, circuit breaker Q F, hang a liter contactor KM1, decentralization contactor
KM2, three-phase conic rotor braking motor M, normally opened a liter button SB1, normally opened decentralization button SB2, normally closed stop button SB3, simultaneously are hung
Join restraining coil YA1, tandem brake coil YA2, single-phase rectification bridge UR1, three-phase rectification bridge UR2, time relay KT, it is normally closed on
Limit travel switch SQ1 and normally closed lower bound range switch SQ2.
Specific embodiment
As shown in Figures 1 to 3, the embodiments of the present invention, a kind of energy conservation double brake three-phase electric cucurbit, including three-phase cone
Shape rotor brake motor M, reel 1, reduction gearbox 2, control cabinet 3, suspension hook 4, control button 5, complemental brake system 6 and operation electricity
Road；The control button 5 hangs a liter button SB1, normally opened decentralization button SB2 and normally closed stop button SB3 equipped with normally opened；The operation
Circuit includes main circuit, control circuit and braking circuit；The main circuit includes the three phase mains of three-phase four-wire system, breaker
QF, a liter contactor KM1, decentralization contactor KM2 and three-phase conic rotor braking motor M are hung；The control circuit includes hanging a liter control
Circuit processed and decentralization control circuit；
The brake solenoid YA is equipped with parallel connection restraining coil YA1 and tandem brake coil YA2；The braking circuit packet
Include braking circuit and tandem brake circuit in parallel；
The parallel connection braking circuit includes restraining coil YA1, single-phase rectification bridge UR1 and on-delay type time relay in parallel
Device KT coil；The both ends of the parallel connection restraining coil YA1 are separately connected two output ends of single-phase rectification bridge UR1, single-phase rectifier
Two input terminals of bridge UR1 are separately connected the zero curve N of three phase mains and the head end of three-phase conic rotor braking motor M three-phase windings
W, the both ends of time relay KT coil are separately connected the head end W of three M phase winding of zero curve N and three-phase conic rotor braking motor；
The tandem brake circuit include tandem brake coil YA2, three-phase rectification bridge UR2, time relay KT it is normally opened
First contact KT-1 and normally opened second contact KT-2；The both ends of the tandem brake coil YA2 are separately connected three-phase rectification bridge UR2
Two output ends, three input terminals of three-phase rectification bridge UR2 are separately connected three-phase conic rotor braking motor M three-phase windings
Three ends X, Y, Z, the both ends of the normally opened first contact KT-1 of time relay KT are separately connected three-phase conic rotor braking electricity
End X, Y of machine M three-phase windings, the both ends of normally opened second contact KT-2 are separately connected three-phase conic rotor braking motor M three-phase
End Y, Z of winding；
In the present embodiment, the three-phase conic rotor braking motor M is set to 1 one end of reel, and one end of reduction gearbox 2 connects volume
The other end of cylinder 1, control cabinet 3 are set to outside three-phase conic rotor braking motor M, and suspension hook 4 is connected by wirerope 7 and reel 1.
In the present embodiment, the complemental brake system 6 is set to the other end of reduction gearbox 2, which includes shell
Body 8, brake axle 9, the brake disc 10 for being fixed on 9 one end of brake axle, the brake solenoid YA being fixed on inside shell 8, braking
Piece 11, spring 12；The high speed shaft of 9 other end of the brake axle connection reduction gearbox 2, brake(-holder) block 11 are set to brake disc 10 and braking electricity
Between magnetic coil YA, which can axially move；The spring 12 is set between 8 end of brake(-holder) block 11 and shell, and
Push brake(-holder) block 11 to brake disc 10.
In the present embodiment, the circuit breaker Q F input terminal is separately connected the L1 phase, L2 phase and L3 phase of three phase mains；It is described to hang
It rises contactor KM1 and hangs liter for controlling three-phase conic rotor braking motor M rotating forward, one end difference of three of them main contacts KM1-1
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 U, V, W；The decentralization contactor KM2 is for controlling three-phase conic rotor braking motor M reversion decentralization, three of them main contacts
One end of KM2-1 is separately connected three output ends of circuit breaker Q F, and the other end is separately connected three-phase conic rotor braking motor M tri-
Three head ends W, V, U of phase winding.
In the present embodiment, it is described hang zero curve N that liter control circuit includes the power supply being sequentially connected in series, it is normally opened hang a liter button SB1,
It transfers the normally closed second auxiliary contact KM2-2 of contactor KM2, hang a liter contactor KM1 coil, normally closed stop button SB3 and open circuit
The L3 phase of device QF output end；The normally opened liter both ends of button SB1 of hanging are parallel with the normally opened third auxiliary touching for hanging liter contactor KM1
Point KM1-3；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.
In the present embodiment, the impedance of the tandem brake coil YA2 is the resistance of three-phase conic rotor braking motor M three-phase windings
Anti- 2%~4%.The impedance of tandem brake coil YA2 influences the power of three-phase conic rotor braking motor M when being in this range
Less, it will not influence the normal starting of 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.
It is described to hang a liter contactor KM1, decentralization contactor KM2, time relay KT, three-phase rectification bridge UR2 in the present embodiment
It is set in control cabinet 3 with single-phase rectification bridge UR1.
Working principle: when hanging electric hoist suspension hook 4 liter, closing circuit breaker Q F, press it is normally opened hang a liter button SB1, hang
Rise control circuit to connect, hang a liter contactor KM1 and obtain electric actuation, main contacts KM1-1 closure, main circuit, braking circuit in parallel and
Tandem brake circuit is turned on, after braking circuit in parallel is connected, time relay KT coil obtain it is electric, brake solenoid YA's and
Connection restraining coil YA1 also obtains the direct current after single-phase rectification bridge UR1 is rectified；After tandem brake circuit is connected, electromagnetism is braked
The tandem brake coil YA2 of coil YA also obtain through three-phase rectification bridge UR2 rectify after direct current, restraining coil YA1 in parallel and
It is auxiliary that the electromagnetic force that tandem brake coil YA2 is generated jointly makes brake(-holder) block 11 that the thrust of spring 12 and the separation of brake disc 10 be overcome to open
Brake apparatus 6 is helped, brake disc 10 and brake axle 9 are free to rotate；The iron core and brake(-holder) block 11 of brake solenoid YA is pull-in on
Together, forming closed magnetic circuit makes magnetic flux increase；End X, Y, Z of the three-phase windings of three-phase conic rotor braking motor M simultaneously
Circuit is constituted through three-phase rectification bridge UR2 and tandem brake coil YA2, at star-like connection, the three of three-phase conic rotor braking motor M
Phase winding also electric rotating forward starting；Time relay KT is attracted after delay after a period of time, normally opened first contact KT-1
It is closed with normally opened second contact KT-2, end X, Y, Z of the three-phase windings of three-phase conic rotor braking motor M is directly connected to
Star-like connection is formed together, and tandem brake coil YA2 is short-circuited power loss, at this time since complemental brake system 6 has been in opening
State, the iron core and brake(-holder) block 11 of brake solenoid YA have been pulled together, and closed magnetic circuit are formed, by restraining coil in parallel
The electromagnetic force that YA1 is generated maintains the opening state of complemental brake system 6 enough, can thus reduce the whole of brake solenoid YA
Body power saves electric energy, can also reduce the iron core fever of brake solenoid YA, improve braking ability.A liter contactor KM1 is hung to obtain
After electricity is attracted, normally opened third auxiliary contact KM1-3 closed pair is normally opened hang liter button SB1 carry out it is in parallel self-locking, normally closed second
Auxiliary contact KM1-2 disconnects cutting decentralization control circuit, protects to decentralization control circuit.Stop the suspension hook of electric block
4 when hanging liter, presses normally closed stop button SB3 cutting and hangs a liter control circuit, hangs a liter contactor KM1 power loss, main contacts KM1-1 is disconnected
It opens, main circuit and the equal power loss of braking circuit in parallel, three-phase conic rotor braking motor M is out of service, and brake(-holder) block 11 is in spring 12
Under the action of ejection brake disc 10 so that brake disc 10 is stopped operating and is braked, hang normally closed second auxiliary contact of liter contactor KM1
KM1-2, normally opened third auxiliary contact KM1-3 also reset, and time relay KT also resets.
Similarly, when transferring electric hoist suspension hook 4, circuit breaker Q F is closed, presses normally opened decentralization button SB2, decentralization control
Circuit processed is connected, and decentralization contactor KM2 obtains electric actuation, main contacts KM2-1 closure, main circuit, braking circuit in parallel and series connection
Braking circuit is turned on, and opens complemental brake system under the collective effect of restraining coil YA1 in parallel and tandem brake coil YA2
6, three-phase conic rotor braking motor M reversion starting, time relay KT are attracted after delay after a period of time, make series connection
Moving winding YA2 short circuit power loss is maintained the opening state of complemental brake system 6 by restraining coil YA1 in parallel；Stop electric block
When suspension hook 4 is transferred, normally closed stop button SB3 cutting decentralization control circuit is pressed, main circuit and the equal power loss of braking circuit in parallel are made,
Three-phase conic rotor braking motor M is out of service, and complemental brake system 6 is braked under the action of spring 12.
Brake solenoid is divided into restraining coil and tandem brake coil in parallel by the utility model, passes through the time relay
Delays time to control, make when three-phase conic rotor braking electric motor starting by restraining coil in parallel and tandem brake coil generate jointly compared with
Big electromagnetic force opens rapidly complemental brake system, and complemental brake system only provides electromagnetic force dimension by restraining coil in parallel after opening
The opening state of complemental brake system is held, the overall power of brake solenoid can be reduced, energy saving also makes to brake electromagnetic wire
Coil temperature rise is small, improves braking ability；Alternating current input brake electricity after three-phase rectification bridge and single-phase rectification bridge are rectified into direct current
Magnetic coil can make brake solenoid work more stable.
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.
Claims (8)
1. a kind of energy conservation double brake three-phase electric cucurbit, including three-phase conic rotor braking motor, reel, reduction gearbox, control cabinet,
Suspension hook, control button, complemental brake system and operation circuit；The control button be equipped with it is normally opened hang a liter button, it is normally opened decentralization press
Button and normally closed stop button；The complemental brake system is equipped with brake solenoid；The operation circuit includes main circuit, control
Circuit and braking circuit；The main circuit includes the three phase mains of three-phase four-wire system, breaker, hangs a liter contactor, decentralization contact
Device and three-phase conic rotor braking motor；The control circuit includes hanging liter control circuit and decentralization control circuit；Its feature exists
In:
The brake solenoid is equipped with restraining coil and tandem brake coil in parallel；
The braking circuit includes braking circuit and tandem brake circuit in parallel；
The parallel connection braking circuit includes restraining coil, single-phase rectification bridge and on-delay type time relay coil in parallel；Institute
The both ends for stating restraining coil in parallel are separately connected two output ends of single-phase rectification bridge, two input terminals difference of single-phase rectification bridge
The zero curve of connection three phase mains and a head end of three-phase conic rotor braking motor three-phase windings, the two of time relay coil
End is separately connected a head end of zero curve and three-phase conic rotor braking motor three-phase windings；
The tandem brake circuit include tandem brake coil, three-phase rectification bridge, the time relay normally opened first contact and often
Open the second contact；The both ends of the tandem brake coil are separately connected two output ends of three-phase rectification bridge, three-phase rectification bridge
Three input terminals are separately connected three ends of three-phase conic rotor braking motor three-phase windings, and normally opened the first of the time relay
Three ends of the both ends interconnection three-phase conic rotor braking motor three-phase windings at the both ends of contact and normally opened second contact.
2. a kind of energy saving double brake three-phase electric cucurbit according to claim 1, it is characterised in that: the three-phase taper turns
Sub- braking motor is set to reel one end, the other end of one end connection reel of reduction gearbox, and control cabinet is set to three-phase cone rotor system
Dynamic outside motor, suspension hook are connected by wirerope with reel.
3. a kind of energy saving double brake three-phase electric cucurbit according to claim 1, it is characterised in that: the auxiliary braking dress
Be arranged in the other end of reduction gearbox, the complemental brake system include shell, brake axle, the brake disc for being fixed on brake axle one end,
It is fixed on the brake solenoid, brake(-holder) block, spring of enclosure interior；The high speed shaft of the brake axle other end connection reduction gearbox,
Brake(-holder) block is set between brake disc and brake solenoid, which can axially move；The spring be set to brake(-holder) block and
Between shell end, and push brake(-holder) block to brake disc.
4. a kind of energy saving double brake three-phase electric cucurbit according to claim 1, it is characterised in that: the breaker input
End is separately connected the L1 phase, L2 phase and L3 phase of three phase mains；Liter contactor that hangs is for controlling three-phase conic rotor braking electricity
Liter is hung in machine 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-phase cone
Three head ends of shape rotor brake motor three-phase windings；The decentralization contactor is anti-for controlling three-phase conic rotor braking motor
Turn decentralization, one end of three of them main contacts is separately connected three output ends of breaker, and the other end is separately connected three-phase taper and turns
Three head ends of sub- braking motor three-phase windings.
5. a kind of energy saving double brake three-phase electric cucurbit according to claim 1, it is characterised in that: described to hang a liter control electricity
Road includes the zero curve for the power supply being serially connected, normally opened normally closed second auxiliary contact for hanging a liter button, transferring contactor, hangs a liter contact
The L3 phase of device coil, normally closed stop button and breaker output end；The normally opened both ends for hanging liter button, which are parallel with, hangs a liter contact
The normally opened third auxiliary contact of device；The decentralization control circuit includes the zero curve being serially connected, normally opened decentralization button, hangs a liter contact
Normally closed second auxiliary contact of device, the L3 phase for transferring contactor coil, normally closed stop button and breaker output end；It is described normally opened
The both ends of decentralization button are parallel with the normally opened third auxiliary contact of decentralization contactor.
6. a kind of energy saving double brake three-phase electric cucurbit according to claim 1, it is characterised in that: the tandem brake line
The impedance of circle is the 2%~4% of three-phase conic rotor braking motor three-phase windings impedance.
7. a kind of energy saving double brake three-phase electric cucurbit according to claim 1, it is characterised in that: outside the reduction gearbox
Equipped with the limiter for rising and transferring limit stop position is hung for controlling suspension hook, the limiter and reduction gearbox are sequentially connected；It is described
Limiter 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
In circuit processed, normally closed lower bound range switch is series in decentralization control circuit.
8. a kind of energy saving double brake three-phase electric cucurbit according to claim 1, it is characterised in that: described to hang a liter contact
Device, decentralization contactor, the time relay, three-phase rectification bridge and single-phase rectification bridge are set in control cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920189294.5U CN209651769U (en) | 2019-02-11 | 2019-02-11 | A kind of energy conservation double brake three-phase electric cucurbit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920189294.5U CN209651769U (en) | 2019-02-11 | 2019-02-11 | A kind of energy conservation double brake three-phase electric cucurbit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209651769U true CN209651769U (en) | 2019-11-19 |
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ID=68524065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920189294.5U Expired - Fee Related CN209651769U (en) | 2019-02-11 | 2019-02-11 | A kind of energy conservation double brake three-phase electric cucurbit |
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| Country | Link |
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| CN (1) | CN209651769U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112713022A (en) * | 2020-12-16 | 2021-04-27 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Inertia damping device of high-current quick circuit breaker |
-
2019
- 2019-02-11 CN CN201920189294.5U patent/CN209651769U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112713022A (en) * | 2020-12-16 | 2021-04-27 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Inertia damping device of high-current quick circuit breaker |
| CN112713022B (en) * | 2020-12-16 | 2022-09-02 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Inertia damping device of high-current quick circuit breaker |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20191119 Termination date: 20200211 |