CN202978782U - Motor control device for lead drawing machine - Google Patents
Motor control device for lead drawing machine Download PDFInfo
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- CN202978782U CN202978782U CN 201220564408 CN201220564408U CN202978782U CN 202978782 U CN202978782 U CN 202978782U CN 201220564408 CN201220564408 CN 201220564408 CN 201220564408 U CN201220564408 U CN 201220564408U CN 202978782 U CN202978782 U CN 202978782U
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Abstract
In a motor control device for a lead drawing machine in the utility model, an electromagnetic internal contracting brake is added on the basis of an existing lead drawing machine, through the braking function of the electromagnetic internal contracting brake on a motor, accurate positioning of the lead drawing machine is realized; and at the same time, apart from the improvement, a plurality of protective measures are increased, including delay outage, positive and reverse rotation position limitation, positive and reverse rotation delay start, and a protective motion-off switch and the like, and thus the lead drawing machine equipment can be effectively protected.
Description
Technical field
The utility model belongs to automation field, relates in particular to be used to the threephase asynchronous machine automatic control equipment that pulls out plumbous machine.
Background technology
Pull out plumbous machine and be the engineering machinery that the drawing action is carried out in a kind of rotating that utilizes motor, need to work long hours in daily industrial production.Traditional pull out plumbous machine and can only control and pull out plumbous machine and stretch out length with drawing by controlling time that motor rotates and reverse, and such control can't realize the accurate location of drawing length, be subjected to simultaneously the impact of the factors such as size of current, device aging degree, drawing length can occur and situation different in size occur.Simultaneously motor works long hours, and traditional plumbous dynamo-electric machine control device that pulls out lacks safeguard measure, lacks control device when the situation such as motor overheating, current overload, under-voltage, motor phase failure occurring, can't protect equipment.
The utility model content
For the problems referred to above, the purpose of this utility model is to propose a kind ofly can accurately control the electric machine rotation distance, thereby accurately the motor control assembly of plumbous machine drawing length is pulled out in the location.
Above-mentioned purpose of the present utility model reaches by the following technical programs: a kind ofly pull out plumbous dynamo-electric machine control device, comprise total lock, fuse, relay main contacts, three-phase rotating solid-state relay, thermal element, three phase electric machine, PLC, button panel and electromagnetic brake; Described total lock one end is connected with civil power, and total lock other end is connected with fuse one end; The fuse other end is connected with relay main contacts one end; The relay main contacts other end is connected with three-phase rotating solid-state relay electric current incoming end; Three-phase rotating solid-state relay current output terminal is connected with thermal element one end; The thermal element other end is connected with the three phase electric machine power end; The three phase electric machine rotating shaft is embedded in the brake wheel of electromagnetic brake; The control pin of PLC is connected with the corresponding button of button panel respectively, and the forward pin of PLC, counter-rotating pin are connected with the counter-rotating end with three-phase rotating solid-state relay forward end respectively.
Further, described electromagnetic brake time-delay M cuts off the power supply second, and M is any one number between 3 to 15.Electromagnetic brake postpones outage, can guarantee the disconnection fully of band-type brake, and when preventing frequent rotating, electromagnetic brake does not disconnect fully, and the load starting torque of appearance increases the generation of the situation that causes motor overheating.
Further, also comprise the spacing pin of forward and the spacing pin of counter-rotating in the control pin of described PLC, also comprise forward limit switch and counter-rotating limit switch in button panel, the spacing pin of this PLC forward is connected with the forward limit switch of button panel, the spacing pin of this PLC counter-rotating is connected with the counter-rotating limit switch of button panel, press forward limit switch or counter-rotating limit switch, PLC controls the coil blackout of electromagnetic brake.Increase forward limit switch and counter-rotating limit switch and can manually control the work of electromagnetic brake, satisfy specific artificial location requirement.
Further, described forward limit switch and counter-rotating limit switch time-delay N start second, and N is any one number between 0.5 to 1.Increase rotating and start time-delay, can prevent the motor overheating that frequent rotating causes.
Further, also comprise the protection pin in the control pin of described PLC, also comprise protection dynamic circuit breaker switch in button panel, this protection pin is connected with protection dynamic circuit breaker switch in button panel, disconnect protect the dynamic circuit breaker switch after, PLC control relay coil blackout.Increase protection dynamic circuit breaker switch, can when overcurrent, phase shortage, the abnormality such as under-voltage appear in equipment, disconnect relay, thereby stop the work of whole equipment, and then protection equipment not be damaged.
The beneficial effects of the utility model are: the utility model has increased electromagnetic brake on existing basis of pulling out plumbous machine, to the braking action that motor plays, realized pulling out the accurate location of plumbous machine by electromagnetic brake; Also increased simultaneously a plurality of safeguard measures such as electromagnetic brake postpones to cut off the power supply, rotating is spacing, rotating delay start, protection dynamic circuit breaker switch on this improves, can effectively protect pulling out plumbous machine equipment.
Description of drawings
Fig. 1 is the circuit structure diagram of the utility model specific embodiment;
Wherein, 1 is PLC, and 2 is total lock, and 3 is fuse, and 4 is the relay main contacts, and 5 is three-phase rotating solid-state relay, and 6 is thermal element, and 7 is three phase electric machine, and 8 is electromagnetic brake, and 9 is button panel.
Embodiment
Disclosed all features in this specification, or the step in disclosed all methods or process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this specification is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or similar characteristics.In this specification, the description to alternative features is to being equal to the description of technical characterictic, must not being considered as the donation to the public simultaneously.
If in this specification, term has general sense and this area spy is significant simultaneously, if no special instructions, all be defined as the peculiar implication in this area.
As shown in Figure 1, be the circuit structure diagram of the utility model specific embodiment.A kind ofly pull out plumbous dynamo-electric machine control device, consisted of by total lock, fuse, relay main contacts, three-phase rotating solid-state relay, thermal element, three phase electric machine, PLC, button panel and electromagnetic brake.Because motor used is three phase electric machine, therefore described total lock one end is connected with industrial three-phase mains, total lock other end is connected with fuse one end; The fuse other end is connected with relay main contacts one end; The relay main contacts other end is connected with three-phase rotating solid-state relay electric current incoming end; Three-phase rotating solid-state relay current output terminal is connected with thermal element one end; The thermal element other end is connected with the three phase electric machine power end; The control pin of PLC is connected with the corresponding button of button panel respectively, and the forward pin of PLC, counter-rotating pin are connected with the counter-rotating end with three-phase rotating solid-state relay forward end respectively.These structures are traditional structure.Innovative point of the present utility model is, the rotating shaft of three phase electric machine also is embedded in the brake wheel of electromagnetic brake, thereby when needed, disconnect the electric current of electromagnetic brake, the brake shoe of electromagnetic brake is just tightly embraced brake wheel, thereby motor is stopped operating, and plays the accurate positioning action of pulling out plumbous machine.
In the present embodiment, the I of PLC series pin is for controlling pin; Q series pin is functional pin.Wherein, the Q1 pin is for starting the pin of KM coil, the Q2 pin is the pin that stops the KM coil, the Q5 pin connects the positive converting interface of three-phase rotating solid-state relay, the Q6 pin connects the counter-rotating interface of three-phase rotating solid-state relay, the Q9 pin connects cooling fan, and the Q11 pin connects the coil of electromagnetic brake.The I1 pin connects the forward starting switch, and the I2 pin connects the counter-rotating starting switch, and I3 connects shutdown switch, and I4 connects the forward limit switch, and I5 connects the counter-rotating limit switch, and I8 connects protection dynamic circuit breaker switch, and I10 connects total starting switch, and I11 connects total shutdown switch.
So, when pressing forward limit switch or counter-rotating limit switch, the I4 pin of PLC or I5 pin receive high level, and PLC controls the coil blackout of electromagnetic brake by the Q11 pin, thereby realizes braking.Increase forward limit switch and counter-rotating limit switch and can manually control the work of electromagnetic brake, satisfy specific artificial location requirement.
Increase simultaneously protection dynamic circuit breaker switch; can be when overcurrent, phase shortage, the abnormality such as under-voltage appear in equipment; press protection dynamic circuit breaker switch; the I8 pin of PLC receives low level; PLC disconnects the electric current of relay coil by the Q2 pin; the relay main contacts is disconnected, thereby stop the work of whole equipment, and then protection equipment is not damaged.
Simultaneously on this hardware foundation, by utilizing known technology, this area general personnel can simply programme to PLC, realize that electromagnetic brake time-delay M cuts off the power supply second, start second with forward limit switch and counter-rotating limit switch time-delay N, M is any one number between 3 to 15, and N is any one number between 0.5 to 1.Electromagnetic brake postpones outage, can guarantee the disconnection fully of band-type brake, and when preventing frequent rotating, electromagnetic brake does not disconnect fully, and the load starting torque of appearance increases the generation of the situation that causes motor overheating.Increase rotating and start time-delay, can prevent the motor overheating that frequent rotating causes.Generally speaking, less than the span of M and N, defencive function is relatively poor; The span that exceeds M and N, engineering efficient is lower.
Claims (5)
1. one kind is pulled out plumbous dynamo-electric machine control device, comprises total lock, fuse, relay main contacts, three-phase rotating solid-state relay, thermal element, three phase electric machine, PLC and button panel, it is characterized in that:
Also comprise electromagnetic brake, described total lock one end is connected with civil power, and total lock other end is connected with fuse one end; The fuse other end is connected with relay main contacts one end; The relay main contacts other end is connected with three-phase rotating solid-state relay electric current incoming end; Three-phase rotating solid-state relay current output terminal is connected with thermal element one end; The thermal element other end is connected with the three phase electric machine power end; The three phase electric machine rotating shaft is embedded in the brake wheel of electromagnetic brake; The control pin of PLC is connected with the corresponding button of button panel respectively, and the forward pin of PLC, counter-rotating pin are connected with the counter-rotating end with three-phase rotating solid-state relay forward end respectively.
2. pull out according to claim 1 plumbous dynamo-electric machine control device, it is characterized in that:
Described electromagnetic brake time-delay M cuts off the power supply second, and M is any one number between 3 to 15.
3. pull out according to claim 1 plumbous dynamo-electric machine control device, it is characterized in that:
Also comprise the spacing pin of forward and the spacing pin of counter-rotating in the control pin of described PLC, also comprise forward limit switch and counter-rotating limit switch in button panel, the spacing pin of this PLC forward is connected with the forward limit switch of button panel, the spacing pin of this PLC counter-rotating is connected with the counter-rotating limit switch of button panel, press forward limit switch or counter-rotating limit switch, PLC controls the coil blackout of electromagnetic brake.
4. pull out according to claim 3 plumbous dynamo-electric machine control device, it is characterized in that:
Described forward limit switch and counter-rotating limit switch time-delay N start second, and N is any one number between 0.5 to 1.
5. pull out according to claim 1 plumbous dynamo-electric machine control device, it is characterized in that:
Also comprise the protection pin in the control pin of described PLC, also comprise protection dynamic circuit breaker switch in button panel, this protection pin is connected with protection dynamic circuit breaker switch in button panel, disconnect protect the dynamic circuit breaker switch after, PLC control relay coil blackout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220564408 CN202978782U (en) | 2012-10-31 | 2012-10-31 | Motor control device for lead drawing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220564408 CN202978782U (en) | 2012-10-31 | 2012-10-31 | Motor control device for lead drawing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978782U true CN202978782U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220564408 Expired - Lifetime CN202978782U (en) | 2012-10-31 | 2012-10-31 | Motor control device for lead drawing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202978782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105785916A (en) * | 2014-12-15 | 2016-07-20 | 上海通用汽车有限公司 | Method and apparatus for protecting gravity shaft dropping of machine tool |
-
2012
- 2012-10-31 CN CN 201220564408 patent/CN202978782U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105785916A (en) * | 2014-12-15 | 2016-07-20 | 上海通用汽车有限公司 | Method and apparatus for protecting gravity shaft dropping of machine tool |
| CN105785916B (en) * | 2014-12-15 | 2019-01-18 | 上海通用汽车有限公司 | The method and apparatus of lathe gravity axis tenesmus protection are provided |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |