CN101599739A - A kind of single-phase motor commutation control system of hoisting equipment - Google Patents
A kind of single-phase motor commutation control system of hoisting equipment Download PDFInfo
- Publication number
- CN101599739A CN101599739A CNA2009100695476A CN200910069547A CN101599739A CN 101599739 A CN101599739 A CN 101599739A CN A2009100695476 A CNA2009100695476 A CN A2009100695476A CN 200910069547 A CN200910069547 A CN 200910069547A CN 101599739 A CN101599739 A CN 101599739A
- Authority
- CN
- China
- Prior art keywords
- reversing circuit
- monophase machine
- contactor
- autotransformer
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Control Of Multiple Motors (AREA)
Abstract
The present invention relates to a kind of single-phase motor commutation control system of hoisting equipment, comprise first monophase machine that is connected with AC power, second monophase machine, first motor reversing circuit and second motor reversing circuit that constitute by contactor, commutation control switch and rising limit switch, wherein: the output of AC power is connected in the forward rotation voltage input end of two monophase machines, AC power also is connected with an autotransformer, the first low-voltage output of this autotransformer is connected in the backward rotation voltage input end of two monophase machine windings, and the second low-voltage output of autotransformer is connected in the contactor coil of first motor reversing circuit and second motor reversing circuit.Scientific structure design of the present invention is reasonable, effectively guarantees steady, safe, efficient, the low noise of monophase machine in lifting construction running, has advantages such as applicability is strong, cost is low, economic benefit is outstanding.
Description
Technical field
The invention belongs to the single-phase motor commutation control system in hoisting equipment control field, particularly a kind of hoisting equipment.
Background technology
At present, domestic normally used bridge motor is three phase electric machine, and it has steadily advantage reliably in running.It is three phase mains that three phase electric machine is suitable for power supply, and in some country and regional, the employed power supply in its construction site is a single phase poaer supply, therefore, can't adopt above-mentioned three phase electric machine as bridge motor.Use for satisfying single phase poaer supply to carry out the requirement of lifting construction, convenient mode adopts monophase machine as bridge motor exactly.Yet there is following drawback in monophase machine when using as bridge motor: in the decline process, monophase machine is owing to bear load, the rotating speed of motor shaft surpasses its rated speed, cause magnetic field inhomogeneous, thereby cause problems such as vibrations and strong noise, influence is normally used.Therefore, be badly in need of developing a kind of can addressing the above problem, so that monophase machine is steady when using as bridge motor, the control system of low noise.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of single-phase motor commutation control system of hoisting equipment is provided, it is by the operating voltage of the single-phase bridge motor of reduction in the decline process, thereby realization significantly reduces vibrations and noise in the running.
The present invention solves its technical problem and takes following technical scheme to realize:
A kind of single-phase motor commutation control system of hoisting equipment, comprise first monophase machine that is connected with AC power, second monophase machine, first motor reversing circuit and second motor reversing circuit that constitute by contactor, commutation control switch and rising limit switch, it is characterized in that: the output of AC power is connected in the forward rotation voltage input end of two monophase machines, AC power also is connected with an autotransformer, the first low-voltage output of this autotransformer is connected in the backward rotation voltage input end of two monophase machine windings, and the second low-voltage output of autotransformer is connected in the contactor coil of first motor reversing circuit and second motor reversing circuit.
And described first motor reversing circuit and second motor reversing circuit are connected in a change over switch jointly, and what this change over switch was controlled first motor reversing circuit and second motor reversing circuit selects one or common operation.
And the first low-voltage output of described autotransformer is 70V output.
Advantage of the present invention and good effect are:
1. this control system is by adding an autotransformer in control system, and the 70V low-voltage output of this autotransformer is connected in the backward rotation voltage input end of two monophase machine windings, thereby two monophase machines all are under the 70V voltage in the decline process to be moved, reduce the electric current that monophase machine is produced in the decline process, and then significantly reduce by uneven shake and the noise of producing in magnetic field, it is to play damping action in the Umklapp process that two monophase machines are descended at weight, guarantees low noise and the even running of monophase machine in the decline process.
2. this control system is by the separate unit or the operation simultaneously of change over switch control motor first monophase machine, second monophase machine, thereby can highly adjust the lifting of two monophase machines, it is consistent, guarantees the fail safe and the stability of construction running.
3. scientific structure design of the present invention is reasonable, problems such as existing decline process vibrations are big when having overcome monophase machine and using as bridge motor, noise is strong, and have spacing alarm, anxious function such as stop, effectively guarantee monophase machine in lifting construction running steadily, safety, efficient, low noise, have advantages such as applicability is strong, cost is low, economic benefit is outstanding.
Description of drawings
Fig. 1 is circuit theory diagrams of the present invention.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are further described:
A kind of single-phase motor commutation control system of hoisting equipment, comprise the first monophase machine M1 that is connected with the 220V AC power, the second monophase machine M2, first motor reversing circuit that constitutes by the first contactor KM1 and the second contactor KM2, second motor reversing circuit that constitutes by the 3rd contactor KM3 and the 4th contactor KM4, the commutation control switch, limit switch SL1, the SL2 that constitute by rising control button SB2, decline control button SB1, and emergency stop switch SBP.
The innovation part of this control system is: the output of AC power is connected in the forward rotation voltage input end of the first monophase machine M1 and the second monophase machine M2, AC power also is connected with an autotransformer T, and this autotransformer T is the highly effective ring autotransformer.The first low-voltage output of this autotransformer T is connected in the backward rotation voltage input end of two monophase machine windings, and the second low-voltage output of autotransformer T is connected in the contactor coil of first motor reversing circuit and second motor reversing circuit.First motor reversing circuit and second motor reversing circuit are connected in a change over switch QC jointly, and what this change over switch was controlled first motor reversing circuit and second motor reversing circuit selects one or common operation.
The physical circuit syndeton of this control system, as shown in fig. 1:
The 220V AC power is connected with earth leakage protective device QF and fuse FU1, FU2.The AC power live wire is connected to forward rotation voltage input end U2, the W2 of the first monophase machine M1 by two normal opened contacts of the first contactor KM1, and forward rotation voltage output end U1, the V1 of the first monophase machine M1 is connected to the AC power zero line by other two normal opened contacts of the first contactor KM1.The AC power live wire also is connected to forward rotation voltage input end 2U2, the 2W2 of the second monophase machine M2 by two normal opened contacts of the 3rd contactor KM3, forward rotation voltage output end 2U1, the 2V1 of the second monophase machine M2 is connected to the AC power zero line by other two normal opened contacts of the 3rd contactor KM3.
AC power also is connected with an autotransformer T, this autotransformer T has the centre tap of a 70V, this 70V output is connected to backward rotation voltage input end V1, the U2 of the first monophase machine M1 by two normal opened contacts of the second contactor KM2, and backward rotation voltage output end U1, the W2 of the first monophase machine M1 is connected to the AC power zero line by other two normally opened contacts of the second contactor KM2.
The 70V output of this autotransformer T also is connected to backward rotation voltage input end 2V1, the 2U2 of the second monophase machine M2 by two normal opened contacts of the 4th contactor KM4, backward rotation voltage output end 2U1, the 2W2 of the second monophase machine M2 is connected to the AC power zero line by two normally opened contacts in addition of the second contactor KM2.
The be connected in parallel end of rising control button SB2, decline control button SB1 of the 36V output of this autotransformer T, the other end of rising control button SB2 is connected with first contactor coil, the 3rd contactor coil in parallel; The other end of decline control button SB1 is connected with second contactor coil and the 4th contactor coil of parallel connection, wherein, and the first contactor KM1 and the second contactor KM2 interlocking, the 3rd contactor KM3 and the 4th contactor KM4 interlocking.
The output of first contactor coil and second contactor coil is connected in parallel to the input of change over switch QC, and the output of the 3rd contactor coil and the 4th contactor coil also is connected in parallel to another input of above-mentioned change over switch QC.The output of this change over switch QC connects limit switch SL1, SL2 and buzzer HA.The 36V output of autotransformer T also connects a power supply indicator HL and built-in type thermal protector FR1, FR2.Be connected with a scram button SBP who links jointly on the 36V loop with on the 220V ac power supply circuit.
The first monophase machine M1, the second monophase machine M2 are braking motor, the electromagnetic brake YC1 of its first monophase machine M1 is by the first contactor KM1, second contactor KM2 control, and the electromagnetic brake YC2 of the second monophase machine M2 is controlled by the 3rd contactor KM3, the 4th contactor KM4.
The operation principle of this control system is:
The first contactor KM1, the second contactor KM2 are that the first monophase machine M1 rises, descends to controlling and use contactor; The 3rd contactor KM3, the 4th contactor KM4 are rising, the decline control contactor of the second monophase machine KM2.The first contactor KM1, the 3rd contactor KM3 are under the 220V in operating voltage, control the rising (just changeing) of the first monophase machine M1 and the second monophase machine M2; The second contactor KM2, the 4th contactor KM4 control the decline (counter-rotating) of the first monophase machine M1 and the second monophase machine M2 under 70V voltage, and rise and fall are finished by rising control button SB2, decline control button SB1 respectively.Rising control button SB2 and decline control button SB1 are connected to control switch SA, can realize remote control.
Separate unit or operation simultaneously by the change over switch QC control motor first monophase machine M1, the second monophase machine M2.In addition, also by the spacing alarm function after the action of buzzer HA realization limit switch.Realize the common sudden-stop function of 36V loop and 220 ac power supply circuits by scram button SBP.
Claims (3)
1. the single-phase motor commutation control system of a hoisting equipment, comprise first monophase machine that is connected with AC power, second monophase machine, first motor reversing circuit and second motor reversing circuit that constitute by contactor, commutation control switch and rising limit switch, it is characterized in that: the output of AC power is connected in the forward rotation voltage input end of two monophase machines, AC power also is connected with an autotransformer, the first low-voltage output of this autotransformer is connected in the backward rotation voltage input end of two monophase machine windings, and the second low-voltage output of autotransformer is connected in the contactor coil of first motor reversing circuit and second motor reversing circuit.
2. the single-phase motor commutation control system of hoisting equipment according to claim 1, it is characterized in that: described first motor reversing circuit and second motor reversing circuit are connected in a change over switch jointly, and what this change over switch was controlled first motor reversing circuit and second motor reversing circuit selects one or common operation.
3. the single-phase motor commutation control system of hoisting equipment according to claim 1 is characterized in that: the first low-voltage output of described autotransformer is 70V output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100695476A CN101599739A (en) | 2009-07-03 | 2009-07-03 | A kind of single-phase motor commutation control system of hoisting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100695476A CN101599739A (en) | 2009-07-03 | 2009-07-03 | A kind of single-phase motor commutation control system of hoisting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101599739A true CN101599739A (en) | 2009-12-09 |
Family
ID=41421027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100695476A Pending CN101599739A (en) | 2009-07-03 | 2009-07-03 | A kind of single-phase motor commutation control system of hoisting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101599739A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102307032A (en) * | 2011-08-17 | 2012-01-04 | 宁波杜亚机电技术有限公司 | Multi-parallel mechanical limit type tubular motor |
| CN105305919A (en) * | 2015-10-28 | 2016-02-03 | 中国船舶重工集团公司第七一〇研究所 | Circuit for controlling steering of alternating-current motor based on direct-current contactor |
-
2009
- 2009-07-03 CN CNA2009100695476A patent/CN101599739A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102307032A (en) * | 2011-08-17 | 2012-01-04 | 宁波杜亚机电技术有限公司 | Multi-parallel mechanical limit type tubular motor |
| CN102307032B (en) * | 2011-08-17 | 2014-01-08 | 宁波杜亚机电技术有限公司 | Multi-parallel mechanical limit type tubular motor |
| CN105305919A (en) * | 2015-10-28 | 2016-02-03 | 中国船舶重工集团公司第七一〇研究所 | Circuit for controlling steering of alternating-current motor based on direct-current contactor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202334398U (en) | Special frequency converter for ball mill | |
| CN202334404U (en) | Star type triangular starter of high-power motor | |
| CN201113876Y (en) | Oil pumping machine dedicated multi- power integral energy-saving actuator | |
| CN103916069A (en) | Supercapacitor energy storing type elevator discharge control protector | |
| CN103840729B (en) | The startup of contactless on-load automatic regulating distribution transformer and transition branch road | |
| CN101599739A (en) | A kind of single-phase motor commutation control system of hoisting equipment | |
| CN204442209U (en) | A kind of motor starting or stopping control circuit | |
| CN220393033U (en) | Low-frequency emergency dragging device of permanent magnet gear motor direct-drive elevator | |
| CN204144996U (en) | A kind of multiple control lift energy feedback net arrangement with super capacitor | |
| CN202818190U (en) | High-reliability micro motor rapid brake system | |
| CN202565218U (en) | Automatic control frequency conversion soft start device of medium-high voltage synchronous motor | |
| CN201467047U (en) | Single-phase motor control device for hoisting equipment | |
| CN201536344U (en) | On-line electric pole-changing speed regulation control circuit for two-speed motor | |
| CN202334410U (en) | Frequency conversion control system | |
| CN202059184U (en) | Elevator electric energy feedback device | |
| CN104377927B (en) | A kind of derrick crane three fast threephase asynchronouses and derrick crane | |
| CN203840209U (en) | Elevator frequency converter based on matrix frequency conversion technology | |
| CN203434897U (en) | Motor control system based on touch screen and PLC | |
| CN201910765U (en) | Energy-saving starting control circuit of asynchronous motor | |
| CN201501512U (en) | Intelligent controller for AC electric windlass of ship | |
| CN204334264U (en) | A kind of derrick crane three fast threephase asynchronous and derrick cranes | |
| CN204408237U (en) | A kind of state switched system for loaded capacity-regulated transformer | |
| CN202651758U (en) | Three-phase asynchronous alternating current motor protection circuit | |
| CN205178932U (en) | Lifting machine double -fed speed control system based on bilateral PWM converter | |
| CN204669268U (en) | Three-power motor conversion equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20091209 |