CN206272220U - It is a kind of to prevent crown block contactor from gluing dead protection device - Google Patents
It is a kind of to prevent crown block contactor from gluing dead protection device Download PDFInfo
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- CN206272220U CN206272220U CN201621468171.8U CN201621468171U CN206272220U CN 206272220 U CN206272220 U CN 206272220U CN 201621468171 U CN201621468171 U CN 201621468171U CN 206272220 U CN206272220 U CN 206272220U
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Abstract
The utility model is related to a kind of prevent crown block contactor from gluing dead protection device.Including load voltage monitoring modular and breaking dropout protection module, the circuit breaker tripping coil motion of interrelated action control main hoisting mechanism realizes that contracting brake is braked between load voltage monitoring modular and breaking dropout protection module.The utility model has the advantage of; when overhead traveling crane main hook breaks down; during such as the viscous dead, line fault of contactor or power phase shortage; protection device can play cut-out overhead traveling crane main hook main power source; prevent overhead traveling crane from slipping hook so as to play, when power supply disconnects electrically with mechanical full dead electricity, band-type brake is in on-position; other each mechanisms still can normally run, and can effectively contain that accident occurs or reduce loss.
Description
Technical field
The utility model is related to a kind of prevent crown block contactor from gluing dead protection device.
Background technology
At present, iron and steel metallurgical industry overhead traveling crane handling molten steel always is great dangerous matter sources, is constantly shuttled in workshop,
Because of electric reason to overhead traveling crane Slip Hook, the accidents such as hook causes molten steel to be tumbled, weight drops are slipped, caused personal injury, equipment damage
Mistake is countless, and to find out its cause, because being essentially all synchronous connection when overhead traveling crane raising contactor and band-type brake contactor dispatch from the factory
Or disconnect, frequently being operated in daily production operation easily makes electrical equipment easily aging, is susceptible to that contactor is viscous extremely, does not inhale
Or phase-deficient operation, if overhead traveling crane can not find in time when operating, it is possible to cause operation failure（It is motionless）Or it is out of control, it is related to such
Problem, usual motor burns out, brake heavy wear, causes to operate failure or out of control, quick tenesmus.Now also not for such
Effective protection facility of event prevention.
The content of the invention
The purpose of this utility model is to solve above-mentioned problem, it is desirable to provide a kind of energy is rapid（1-2 seconds）
Cut-out main hoisting mechanism power supply（Main raising air-break tripping）, can effectively contain accident occur or reduce loss prevent day
Car contactor glues dead protection device.
The utility model is achieved through the following technical solutions.
The utility model be it is a kind of prevent crown block contactor from gluing dead protection device, including load voltage monitoring modular and disconnected
Road dropout protection module, the interrelated main lifting machine of action control between load voltage monitoring modular and breaking dropout protection module
The circuit breaker tripping coil motion of structure realizes that contracting brake is braked, wherein：
The load voltage monitoring modular includes two groups of load voltage observation circuits, respectively from an electricity of main hoisting mechanism
Accessed in each phase line in end of incoming cables of machine and No. two motors, every group of load voltage observation circuit includes three auxiliary reclays and one
Three-pole breaker, the coil of three auxiliary reclays is connected in a star fashion, and binding post is connect by three of three-pole breaker
The end of a thread is accessed in each phase line in motor end of incoming cables；
In the circuit of the breaking dropout protection module, circuit breaker tripping coil is touched by the on-delay of the time relay one
First control, the time relay one is touched by the normally-closed contact of auxiliary contact of band-type brake power contactor with the normally opened of auxiliary reclay
Point series connection control simultaneously by the on-delay contact two of the time relay two connects control simultaneously, and the time relay two is electric by band-type brake
The normally-closed contact series connection control of the normally opened contact of the auxiliary contact of source contactor and auxiliary reclay and simultaneously by with middle relay
The rising auxiliary contact one being chained together of the normally-closed contact of a device motor in parallel and decline auxiliary contact one control, with
And the rising auxiliary contact two being chained together by No. two motors in parallel with the normally-closed contact of auxiliary reclay and decline auxiliary
Help the control of contact two.
The utility model has the advantage of when overhead traveling crane main hook breaks down, such as contactor glues dead, line fault or power supply
During phase shortage, protection device can play cut-out overhead traveling crane main hook main power source, prevent overhead traveling crane from slipping hook so as to play, the electricity when power supply disconnects
Gas is in on-position with the full dead electricity of machinery, band-type brake, and other each mechanisms still can normally run, can effectively contain accident occur or
Reduce loss.
Brief description of the drawings
Fig. 1 is the circuit theory that load voltage monitoring modular of the present utility model accesses main hoisting mechanism of crane major loop
Figure.
Fig. 2 is the circuit close-up schematic view at number motor of the utility model main hoisting mechanism of crane major loop.
Fig. 3 is two groups of circuit theory diagrams of load voltage observation circuit of the utility model load voltage monitoring modular.
Fig. 4 is the circuit theory diagrams of breaking dropout protection module of the present utility model.
In figure, 1：Load voltage observation circuit one, 2：Load voltage observation circuit two, Q11s：Lifting mechanism electric power disconnection
Device, Q011s：Circuit breaker tripping coil, Q71, Q72：Band-type brake power circuit breaker, K71, K72：Band-type brake power contactor, Y11,
Y12、Y13、Y14：Contracting brake, M11s：Motor one, M11s：Motor two, K11S-1：Rise auxiliary contact one, K21S-1：
Decline auxiliary contact one, K12S-1：Rise auxiliary contact two, K22S-1：Decline auxiliary contact two, QZ1, QZ2：Three is extremely breaking
Device, KA1, KA2, KA3, KA4, KA5, KA6：Auxiliary reclay, QZ3：Two pole breakers, KJ1：The time relay one, KJ1-1：
On-delay contact one, KJ2：The time relay two, KJ2-1：On-delay contact two, K71-1, K72-1：Band-type brake power supply connects
The normally-closed contact of the auxiliary contact of tentaculum, K71-2, K72-2：The normally opened contact of the auxiliary contact of band-type brake power contactor, L, N：
Major loop controls power supply, 1D1s, 1D2s, 1D3s：The end of incoming cables access point of motor one, 2D1s, 2D2s, 2D3s：The end of incoming cables of motor two
Access point.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
The utility model be it is a kind of prevent crown block contactor from gluing dead protection device, including load voltage monitoring modular and disconnected
Road dropout protection module, the interrelated main lifting machine of action control between load voltage monitoring modular and breaking dropout protection module
The circuit breaker tripping coil Q011s actions of structure realize that contracting brake Y11, Y12, Y13, Y14 are braked.
As shown in figures 1 and 3, load voltage monitoring modular includes two groups of load voltage observation circuits, one of which load
Access point 1D1s, 1D2s, the 1D3s of electric voltage observation circuit 1 from an each phase line in motor M11s ends of incoming cables of main hoisting mechanism
Access, access of another group of load voltage observation circuit 22 from No. two each phase lines in motor M12s ends of incoming cables of main hoisting mechanism
Point 2D1s, 2D2s, 2D3s are accessed, as shown in Fig. 2 wherein load voltage observation circuit 1 include three auxiliary reclay KA1,
KA2, KA3 and a three-pole breaker QZ1, the coil of three auxiliary reclays KA1, KA2, KA3 are connected in a star fashion, wiring
Terminal accesses a motor M11s end of incoming cables by three connector lugs of three-pole breaker QZ1 from access point 1D1s, 1D2s, 1D3s
In each phase line, three points of common connection connecting to neutral lines of auxiliary reclay KA1, KA2, KA3, likewise, load voltage observation circuit
22 include three auxiliary reclays KA4, KA5, KA6 and three-pole breaker a QZ2, three auxiliary reclays KA4, KA5, KA6
Coil connect in a star fashion, binding post by three connector lugs of three-pole breaker QZ2 from access point 2D1s, 2D2s,
2D3s is accessed in No. two each phase lines in motor M12s ends of incoming cables, three points of common connection connecting to neutral of auxiliary reclay KA1, KA2, KA3
Line.
As shown in figure 4, in the circuit of breaking dropout protection module, circuit breaker tripping coil Q011s is by the time relay one
The KJ1-1 of on-delay contact one controls of KJ1, protection duration is no more than 1 second, and the KJ1 of the time relay one is by band-type brake electrical power contacts
Two parallel connection normally-closed contact K71-1, K72-1 normally opened contact KA1-2s in parallel with six of auxiliary reclay of the auxiliary contact of device,
KA2-2, KA3-2, KA4-2, KA5-2, KA6-2 series connection are controlled and simultaneously by the on-delay contact two of the KJ2 of the time relay two
KJ2-1 connection controls, the KJ2 of the time relay two by band-type brake power contactor two of auxiliary contact normally opened contact K71- in parallel
2nd, K72-2 connects with six parallel connections normally-closed contact KA1-1, KA2-1, KA3-1, KA4-1, KA5-1, KA6-1 of auxiliary reclay
Control and simultaneously by six normally-closed contact KA1-1, KA2-1, KA3-1, KA4-1, KA5-1, KA6- in parallel with auxiliary reclay
The K11S-1 of rising auxiliary contact one being chained together and decline auxiliary contact one the K21S-1 control of a number motor of 1 parallel connection,
And in parallel by six normally-closed contact KA1-1, KA2-1, KA3-1, KA4-1, KA5-1, KA6-1 in parallel with auxiliary reclay
No. two K12S-1 of rising auxiliary contact two being chained together of motor and the K22S-1 controls of decline auxiliary contact two.Wherein time
Relay model H3Y-2,8 0.1 ~ 3s of pin, voltage 220V, auxiliary reclay model MY4N-J, 14 pin, voltage 220V are auxiliary
Help contact model LADN22.
By voltage monitoring module, its structure utilizes the coil of auxiliary reclay in Y-connection mode to the utility model,
It is parallel to respectively in each phase line in motor end of incoming cables, the electrical condition of every inlet wire of real-time monitoring.Same auxiliary reclay it is normally opened,
Normally-closed contact resets according to its energized action dead electricity, while the auxiliary contact of other main contactors is same in breaking dropout protection module
Sample runs and acts according to equipment, is resetted during dead electricity.Therefore when its normal condition is run, each middle relay of voltage detection module
Device normally opened contact closure is combined, the normally-closed contact of the auxiliary contact of band-type brake power contactor be each turned off the connected time after
Electrical equipment KJ1 wire loops, at the same when band-type brake power contactor auxiliary contact normally opened contact closure, and each auxiliary reclay it
Normally-closed contact action disconnects the loop of connected time relay KJ2.In addition, each motor of each auxiliary reclay bypass
It is to be connected in series method to rise auxiliary contact and decline auxiliary contact, therefore during regular event, two rising auxiliary contacts of motor
Or declining auxiliary contact respectively has one group to be disconnected because of action, time relay KJ2 can not equally acted, then its energization is prolonged
When contact two KJ2-1 time relay KJ1 can not be made directly to form loop so that the open circuit of main circuit power circuit breaker Q 11s
Tripping coil Q011s cannot also obtain electric trip action.If the independent property of phase shortage is failure to actuate or is connect when being stopped during work
The KJ1-1 of on-delay contact one of time relay KJ1 can just be acted in the case that tentaculum contact is clung, so that breaker is de-
Fastening wire circle Q011s action cut-out overhead traveling crane main hook main power sources realize that contracting brake is braked.
Above example is the utility model preferred embodiment, but embodiment of the present utility model does not receive above-mentioned reality
Apply the limitation of example, other any changes made with principle without departing from essence of the present utility model, modification, replacement, combine,
Similarly it is included within scope of patent protection of the present utility model.
Claims (1)
1. it is a kind of to prevent crown block contactor from gluing dead protection device, it is characterised in that including load voltage monitoring modular and open circuit
Dropout protection module, interrelated action control main hoisting mechanism between load voltage monitoring modular and breaking dropout protection module
Circuit breaker tripping coil motion realize contracting brake brake, wherein：
The load voltage monitoring modular includes two groups of load voltage observation circuits, respectively from a motor of main hoisting mechanism and
Accessed in each phase line in end of incoming cables of No. two motors, every group of load voltage observation circuit includes three auxiliary reclays and three poles
Breaker, the coil of three auxiliary reclays is connected in a star fashion, three connector lugs that binding post passes through three-pole breaker
Access in each phase line in motor end of incoming cables；
In the circuit of the breaking dropout protection module, circuit breaker tripping coil by the time relay one on-delay contact one
Control, the time relay one by band-type brake power contactor auxiliary contact normally-closed contact and auxiliary reclay normally opened contact string
Joint control system simultaneously by the on-delay contact two of the time relay two connects control simultaneously, and the time relay two is connect by band-type brake power supply
The normally opened contact of the auxiliary contact of tentaculum connected with the normally-closed contact of auxiliary reclay control and simultaneously by with auxiliary reclay
The rising auxiliary contact one being chained together and decline auxiliary contact one of a normally-closed contact motor in parallel are controlled, Yi Jiyou
The rising auxiliary contact two being chained together and decline auxiliary of No. two motors in parallel with the normally-closed contact of auxiliary reclay are touched
First two control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621468171.8U CN206272220U (en) | 2016-12-29 | 2016-12-29 | It is a kind of to prevent crown block contactor from gluing dead protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621468171.8U CN206272220U (en) | 2016-12-29 | 2016-12-29 | It is a kind of to prevent crown block contactor from gluing dead protection device |
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| Publication Number | Publication Date |
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| CN206272220U true CN206272220U (en) | 2017-06-20 |
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| CN201621468171.8U Active CN206272220U (en) | 2016-12-29 | 2016-12-29 | It is a kind of to prevent crown block contactor from gluing dead protection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108569625A (en) * | 2018-04-26 | 2018-09-25 | 泰富国际工程有限公司 | A kind of safety protection circuit device of erecting equipment brake |
-
2016
- 2016-12-29 CN CN201621468171.8U patent/CN206272220U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108569625A (en) * | 2018-04-26 | 2018-09-25 | 泰富国际工程有限公司 | A kind of safety protection circuit device of erecting equipment brake |
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