CN101825880A - Electrical control system and control method for general assembly production line of tractor - Google Patents
Electrical control system and control method for general assembly production line of tractor Download PDFInfo
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- CN101825880A CN101825880A CN200910046930A CN200910046930A CN101825880A CN 101825880 A CN101825880 A CN 101825880A CN 200910046930 A CN200910046930 A CN 200910046930A CN 200910046930 A CN200910046930 A CN 200910046930A CN 101825880 A CN101825880 A CN 101825880A
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Abstract
The invention discloses an electrical control system for a general assembly production line of a tractor, which comprises a PLC (Programmable Logic Controller) controller, a frequency changer, a sensor unit, an oil pump control switch, an oil cylinder control switch, a relay control unit, a running mode transfer switch and a conveyer belt drive motor for a production line, wherein the PLC controller is respectively connected with the frequency changer, the sensor unit, the oil pump control switch, the oil cylinder control switch, the relay control unit, the conveyer belt drive motor and the running mode transfer switch, and the frequency changer is connected with the conveyer belt drive motor. The invention also discloses an electrical control method for the general assembly production line of the tractor. The running and the accurate contraposition control on big-inertia mechanical systems can be realized by using the PLC controller as the control core of the electrical control system. The invention has the advantages of rapidness, accuracy, safety, reliability, good service performance and the like.
Description
Technical field
The present invention relates to a kind of electric control system and control method, be specifically related to a kind of electric control system and control method that is used for general assembly production line of tractor.
Background technology
Along with development of science and technology, the industrial control automation degree is also more and more higher.Automation equipment or system all are made up of mechanical composition parts and control system, and it is the key factor of an equipment of measurement or system's quality that stable, reliable, safe, an economic control system is arranged.Control mode commonly used has conventional relay control circuit, PLC (programmable controller) control system and computer control system.
The existing electric control system that is used for general assembly production line of tractor adopts relay control circuit usually.Relay control circuit only possesses the control of separate unit driving arrangement, is mainly used in the control of simple device, and principle is simple, and is with low cost.But it is many that its shortcoming is a control element, and function is less, the performance less stable.
Summary of the invention
The objective of the invention is in order to overcome the deficiencies in the prior art, a kind of electric control system and control method that is used for general assembly production line of tractor is provided, it can realize the operation of big inertia mechanical system and the control of contraposition accurately.
A kind of technical scheme that realizes above-mentioned purpose is: a kind of electric control system that is used for general assembly production line of tractor, the conveying belt drive motor that comprises PLC controller, frequency converter, sensor unit, oil pump gauge tap, oil cylinder gauge tap, relay control unit, operational mode change-over switch and streamline, wherein
Described PLC controller connects frequency converter, sensor unit, oil pump gauge tap, oil cylinder gauge tap, relay control unit, conveying belt drive motor and operational mode change-over switch respectively
Described frequency converter connects the conveying belt drive motor.
The above-mentioned electric control system that is used for general assembly production line of tractor, wherein,
Described sensor unit comprises six proximity transducers;
Described oil pump gauge tap comprises pump start, shutdown switch;
Described oil cylinder gauge tap comprises rising, decline switch and limit switch;
Described operational mode change-over switch comprises continuous operation, manual stepping and automatic step switch;
Described relay control unit comprises that relay that relay that the relay, three of relay, a control pump start of a control of conversion power supply control oil cylinder respectively and rise and descend, three relays of controlling three kinds of color alarm lamps respectively, one are used to control the conveying belt drive motor just to be changeed, one are used to control the relay of buzzer warning and two and control the time relay that conveying belt resets and starts respectively.
The above-mentioned electric control system that is used for general assembly production line of tractor, wherein, described frequency converter also is connected with guidance panel by data line.
The above-mentioned electric control system that is used for general assembly production line of tractor, wherein, described operational mode change-over switch comprises the on-line running mode selector switch and the operational mode change-over switch that rolls off the production line.
The another kind of technical scheme that realizes above-mentioned purpose is: a kind of electric control method that is used for general assembly production line of tractor, to carry out by the above-mentioned electric control system that is used for general assembly production line of tractor, and this method is:
At first, select the operational mode of conveying belt; Then, detect the signal that puts in place of tractor different type of machines; Then, after tractor put in place, according to whether stopping of the operational mode decision conveying belt of selecting, and the travelling speed of setting stand-by time and regulating conveying belt, if under continuous operation mode, conveying belt puts in place at tractor, and follow-up reforwarding is capable did not do pause; Under manual step mode, conveying belt is out of service, waits for next time and opens conveying belt after the enabling signal; Under automatic step mode, conveying belt starts after a period of time out of service automatically; At last, select the rising or the decline of oil cylinder.
The above-mentioned electric control method that is used for general assembly production line of tractor, wherein, the signal that puts in place of described detection tractor different type of machines is carried out by sensor unit.
The above-mentioned electric control method that is used for general assembly production line of tractor, wherein, the operational mode of described selection conveying belt is carried out by differentiating the operational mode change-over switch.
The above-mentioned electric control method that is used for general assembly production line of tractor, wherein, the stand-by time of described conveying belt is set by the time relay.
The above-mentioned electric control method that is used for general assembly production line of tractor, wherein, whether described conveying belt moves and the speed adjusting is carried out by frequency converter.
The above-mentioned electric control method that is used for general assembly production line of tractor, wherein, the rising of described selection oil cylinder or decline are carried out by oil pump gauge tap and oil cylinder gauge tap.
The electric control system of general assembly production line of tractor and the technical scheme of control method of being used for of the present invention, use the control core of PLC as this system, can realize the operation of big inertia mechanical system and contraposition accurately control, have advantages such as quick, accurate, safe and reliable, that usability is good.
Description of drawings
Fig. 1 is the theory diagram that is used for the electric control system of general assembly production line of tractor of the present invention;
Fig. 2 is the electric control system belt-driven electrical schematic diagram that is used for general assembly production line of tractor of the present invention;
Fig. 3 is the electric control system programmable controller electrical schematic diagram that is used for general assembly production line of tractor of the present invention;
Fig. 4 is the electric control system relaying electric control schematic diagram that is used for general assembly production line of tractor of the present invention.
Embodiment
See also Fig. 1, the electric control system that is used for general assembly production line of tractor of the present invention, comprise PLC controller 100, frequency converter 200, sensor unit 300, oil pump gauge tap 400, oil cylinder gauge tap 500, relay control unit 600, the conveying belt drive motor 800 of operational mode change-over switch 700 and streamline, wherein, PLC controller 100 connects frequency converter 200 respectively, sensor unit 300, oil pump gauge tap 400, oil cylinder gauge tap 500, relay control unit 600 and operational mode change-over switch 700, frequency converter 200 connects conveying belt drive motor 700 and frequency converter guidance panel 900.Frequency converter 200 is finished the start-stop and the rotating speed control of conveying belt drive motor 800.
See also Fig. 2 to Fig. 4 again, sensor unit 300 comprises six proximity transducers;
Oil pump gauge tap 400 comprises pump start, shutdown switch;
Oil cylinder gauge tap 500 comprises oil cylinder rising, oil cylinder decline switch and oil cylinder limit switch;
Operational mode change-over switch 700 comprises the on-line running mode selector switch and the operational mode change-over switch that rolls off the production line, and they comprise continuous operation, manual stepping and automatic step switch respectively;
The electric control system that is used for general assembly production line of tractor of the present invention is finished the requirement of tractor general assembly line control action.By selecting for use frequency converter 200 to carry out start-stop control and speed adjusting to conveying belt drive motor 800, PLC controller 100 realizes comprising Operation Mode Selection, conveying belt drive motor 800 start-stops logical action controls such as (giving the frequency converter signal).
The general assembly production line of tractor setting reach the standard grade part, center line part, part and melt pit part roll off the production line.
The part of reaching the standard grade is provided with a control enclosure, the control enclosure panel be provided with tractor type options button 1-6, operational mode change-over switch 70, conveying belt startup, stop, each one of scram button.
At the part tractor after-poppet place that reaches the standard grade six of adjustable positions proximity transducers are set, and corresponding given numbering 1-6.When tractor back support moved to proximity transducer 1-6, according to the method for operation decision of selecting, whether the conveying belt operation stopped.Under continuous operation mode, conveying belt continues operation and does not do pause; Under manual step mode, next enabling signal unlatching conveyor is waited in the conveying belt stop motion; Under automatic step mode, conveying belt starts after a period of time out of service automatically.Stand-by time is set by the time relay, and time relay R12 scheduled stop time restarts operation to conveying belt then, waits when after-poppet moves to proximity transducer next time, and the conveying belt operation stops once more, goes round and begins again.
The center line part is only established one of scram button, can not do any operation to the The whole control streamline in this part.Only when emergency condition takes place, can press scram button, cut off the total system power supply.
The part that rolls off the production line is provided with system's master control case, master control case panel be provided with operational mode change-over switch 70, conveying belt startup, stop, each one of scram button, the startup of oil pump, each one of stop button, the rising of oil cylinder, each one on decline button, frequency converter guidance panel, motor speed regulate button.Can select system running pattern, the start-stop conveying belt is set down time.Select for use a frequency converter to drag conveyor, can regulate the conveyor motor speed.Switch board is provided with that oil cylinder rises and respectively one on oil cylinder decline button, the rise and fall of oil cylinder behind the manual control pump start.Oil cylinder rises then that steel plate rises thereupon, holds up the tractor on the conveying belt, and the tractor car load is rolled off the production line voluntarily, starts tractor to leave the workshop.Oil cylinder descends, when steel plate drops to certain position thereupon and limit switch collide, oil cylinder stops automatically.
Melt pit partly is divided into two parts of Qian Keng and hole, back, comprises each one of one of scram button, one of 36V illuminating lamp and 380V/220V socket respectively.Conveying belt drive motor, suction pump place the Qian Keng position.
The general assembly production line of tractor operational mode needs to switch simultaneously the reach the standard grade part and the operational mode change-over switch partly that rolls off the production line.Each running mode switching is then finished once the initialization to system.System initialization does not need to switch simultaneously two operation mode selection switches on the upper and lower line traffic control case, only needs optional one switching state to finish.System initialization is the initialization at system's everything, comprises resetting to automatic stepping state following down time of countdown.
The electric control method that is used for general assembly production line of tractor of the present invention is carried out by the electric control system that is used for general assembly production line of tractor of the present invention, and this method comprises the following steps:
At first, select the operational mode of conveying belt by differentiating operational mode change-over switch 700, then, the tractor that detects different type of machines by sensor unit 300 signal that puts in place; Then, select the operational mode of conveying belt by operational mode change-over switch 700; According to whether stopping of the operational mode decision conveying belt of selecting, and by the stand-by time of time relay R12 setting conveying belt and the travelling speed of regulating conveying belt by frequency converter 200, monitor tractor when putting signal in place, if under continuous operation mode, conveying belt continues operation and does not do pause; Under manual step mode, conveying belt is out of service, waits for next time and opens conveying belt after the enabling signal; Under automatic step mode, conveying belt starts after a period of time out of service automatically; At last, select the rising or the decline of oil cylinder by oil pump gauge tap 400 and oil cylinder gauge tap 500.
The electric control method that is used for general assembly production line of tractor of the present invention, by using the control core of PLC controller as this system, can realize the operation of big inertia mechanical system and contraposition accurately control, have advantages such as quick, accurate, safe and reliable, that usability is good.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in claims scope of the present invention variation, the modification of the above embodiment.
Claims (10)
1. electric control system that is used for general assembly production line of tractor, the conveying belt drive motor that comprises PLC controller, frequency converter, sensor unit, oil pump gauge tap, oil cylinder gauge tap, relay control unit, operational mode change-over switch and streamline, it is characterized in that, described PLC controller connects frequency converter, sensor unit, oil pump gauge tap, oil cylinder gauge tap, relay control unit, conveying belt drive motor and operational mode change-over switch respectively, and described frequency converter connects the conveying belt drive motor.
2. the electric control system that is used for general assembly production line of tractor according to claim 1 is characterized in that,
Described sensor unit comprises six proximity transducers;
Described oil pump gauge tap comprises pump start, shutdown switch;
Described oil cylinder gauge tap comprises rising, decline switch and limit switch;
Described operational mode change-over switch comprises continuous operation, manual stepping and automatic step switch;
Described relay control unit comprises that relay that relay that the relay, three of relay, a control pump start of a control of conversion power supply control oil cylinder respectively and rise and descend, three relays of controlling three kinds of color alarm lamps respectively, one are used to control the conveying belt drive motor just to be changeed, one are used to control the relay of buzzer warning and two and control the time relay that conveying belt resets and starts respectively.
3. the electric control system that is used for general assembly production line of tractor according to claim 1 is characterized in that described frequency converter also is connected with guidance panel by data line.
4. the electric control system that is used for general assembly production line of tractor according to claim 1 is characterized in that, described operational mode change-over switch comprises the on-line running mode selector switch and the operational mode change-over switch that rolls off the production line.
5. an electric control method that is used for general assembly production line of tractor is carried out by the described electric control system that is used for general assembly production line of tractor of claim 1, it is characterized in that this method is:
At first, select the operational mode of conveying belt; Then, detect the signal that puts in place of tractor different type of machines; Then, after tractor put in place, according to whether stopping of the operational mode decision conveying belt of selecting, and the travelling speed of setting stand-by time and regulating conveying belt, if under continuous operation mode, conveying belt puts in place at tractor, and follow-up reforwarding is capable did not do pause; Under manual step mode, conveying belt is out of service, waits for next time and opens conveying belt after the enabling signal; Under automatic step mode, conveying belt starts after a period of time out of service automatically; At last, select the rising or the decline of oil cylinder.
6. the electric control method that is used for general assembly production line of tractor according to claim 5 is characterized in that, the signal that puts in place of described detection tractor different type of machines is carried out by sensor unit.
7. the electric control method that is used for general assembly production line of tractor according to claim 5 is characterized in that, the operational mode of described selection conveying belt is carried out by differentiating the operational mode change-over switch.
8. the electric control method that is used for general assembly production line of tractor according to claim 5 is characterized in that the stand-by time of described conveying belt is set by the time relay.
9. the electric control method that is used for general assembly production line of tractor according to claim 5 is characterized in that, whether described conveying belt moves and the speed adjusting is carried out by frequency converter.
10. the electric control method that is used for general assembly production line of tractor according to claim 5 is characterized in that, the rising of described selection oil cylinder or decline are carried out by oil pump gauge tap and oil cylinder gauge tap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910046930A CN101825880A (en) | 2009-03-03 | 2009-03-03 | Electrical control system and control method for general assembly production line of tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910046930A CN101825880A (en) | 2009-03-03 | 2009-03-03 | Electrical control system and control method for general assembly production line of tractor |
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| Publication Number | Publication Date |
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| CN101825880A true CN101825880A (en) | 2010-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910046930A Pending CN101825880A (en) | 2009-03-03 | 2009-03-03 | Electrical control system and control method for general assembly production line of tractor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683891A (en) * | 2013-12-19 | 2014-03-26 | 西南铝业（集团）有限责任公司 | Frequency converter control circuit and method and speed control system |
| CN106383506A (en) * | 2016-10-31 | 2017-02-08 | 广州华凌制冷设备有限公司 | Production line control system and production line stoppage control method |
| CN108710337A (en) * | 2018-05-24 | 2018-10-26 | 意欧斯智能科技股份有限公司 | A kind of standard component production electric control system based on PROFIBUS fieldbus |
| CN111966016A (en) * | 2020-08-17 | 2020-11-20 | 江苏省农业机械试验鉴定站 | Measurement and control system of static load strength test system of tractor protective device |
-
2009
- 2009-03-03 CN CN200910046930A patent/CN101825880A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683891A (en) * | 2013-12-19 | 2014-03-26 | 西南铝业（集团）有限责任公司 | Frequency converter control circuit and method and speed control system |
| CN103683891B (en) * | 2013-12-19 | 2016-08-24 | 西南铝业（集团）有限责任公司 | A kind of transducer control circuit, method and speed-adjusting and control system |
| CN106383506A (en) * | 2016-10-31 | 2017-02-08 | 广州华凌制冷设备有限公司 | Production line control system and production line stoppage control method |
| CN108710337A (en) * | 2018-05-24 | 2018-10-26 | 意欧斯智能科技股份有限公司 | A kind of standard component production electric control system based on PROFIBUS fieldbus |
| CN111966016A (en) * | 2020-08-17 | 2020-11-20 | 江苏省农业机械试验鉴定站 | Measurement and control system of static load strength test system of tractor protective device |
| CN111966016B (en) * | 2020-08-17 | 2022-04-05 | 江苏省农业机械试验鉴定站 | Measurement and control system of static load strength test system of tractor protective device |
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Application publication date: 20100908 |