CN105523346A - Multi-machine balance drive system and method for belt type conveyor based on soft starting device of hydraulic coupler - Google Patents
Multi-machine balance drive system and method for belt type conveyor based on soft starting device of hydraulic coupler Download PDFInfo
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- CN105523346A CN105523346A CN201510995999.2A CN201510995999A CN105523346A CN 105523346 A CN105523346 A CN 105523346A CN 201510995999 A CN201510995999 A CN 201510995999A CN 105523346 A CN105523346 A CN 105523346A
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- hydraulic coupler
- starting device
- soft starting
- control
- multimachine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/24—Gearing between driving motor and belt- or chain-engaging elements
- B65G23/28—Arrangements for equalising the drive to several elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Conveyors (AREA)
Abstract
The invention discloses a multi-machine balance drive system and a multi-machine balance drive method for a belt type conveyor based on a soft starting device of a hydraulic coupler. The scheme is realized based on one soft starting device of the hydraulic coupler and a PLC (programmable logic controller) control system. The soft starting device of the hydraulic coupler is used for driving a transmission part of the belt type conveyor, and the PLC control system is connected to the soft starting device of the hydraulic coupler through control of a master-slave distribution type structure, any soft starting device of the hydraulic coupler is selectively controlled through a multi-machine power balance control mode, and power balance is kept. According to the scheme, the PLC control system adopts the master-slave distribution type structure, and multi-machine power balance method with the speed open-ring-power closed-loop control so as to periodically control liquid charging amount and liquid discharging amount, so that power balance with multiple combined drive selection modes such as a two-drive selection mode, a three-drive selection mode and the like are realized, and therefore, the multi-machine balance drive system is of great importance to realizing low-speed belt verification, reliable and economic operation of the soft-starting drive belt type conveyor of the Voith coupler.
Description
Technical field
The present invention relates to mechanical drive control field, especially a kind of control of belt conveyer hydraulic coupler soft start.
Background technology
Hydraulic coupler is a kind of hydraulic transmission system utilizing the kinetic energy of liquid and carry out energy transferring, it is using liquid oils as working medium, by pump impeller and turbine, the kinetic energy of mechanical energy and liquid is transformed mutually, thus connection primary mover and work mechanism realize the transmission of power.
The features such as Fu Yite impeller disk is little with volume, output torque is large, reliability is high, maintenance is little have had a large amount of application on belt conveyer, control core has and adopts micro controller system, also have and adopt PLC, achieve the on off control of Fu Yite impeller disk.
But do not solve belt conveyer smooth running and power balance in start-up course that Fu Yite impeller disk soft starting device drives; particularly during conveyer test strip, belt speed requires below 1m/s's; time of run is more than 1 hour; if unbalanced power; impeller disk oil temperature ascending velocity is very fast, must shut down to protect impeller disk.
Summary of the invention
Effectively cannot realize the problem of low speed test strip for the unbalanced power of existing Fu Yite impeller disk soft starting device points driving for belt conveyor in start-up course, the object of the invention is that providing a kind of can realize the stationarity of belt conveyer multimachine in start-up course and the drive system of power balance; On this basis, the present invention also provides a kind of driving method realizing belt conveyer multimachine smooth running and power balance.
In order to achieve the above object, the present invention adopts following technical scheme:
Based on a belt conveyer multimachine balance drive systems for hydraulic coupler soft starting device, described drive system comprises:
At least one hydraulic coupler soft starting device, the drive disk assembly of described hydraulic coupler soft starting device points driving for belt conveyor;
PLC control system, described PLC control system by MS master-slave distributed frame control linkage hydraulic coupler soft starting device, and is selected to control arbitrary hydraulic coupler soft starting device with the master mode of multimachine power balance, and keeps power balance.
Preferably, described hydraulic coupler soft starting device mainly comprises: motor, hydraulic coupler, retarder and motor starter, and the output shaft of described motor is connected to parts to be driven by hydraulic coupler, retarder successively; Described hydraulic coupler is controlled by PLC control system, and described motor starter is connected with motor, and the power transducer in it gathers power of motor signal, and reaches PLC control system.
Preferably, described hydraulic coupler is Fu Yite impeller disk, and charging pump runs, and by liquid feed valve and tapping valve action control oil mass, and then regulating torque, the normally closed design of liquid feed valve wherein, tapping valve often offers meter.
Preferably, described PLC control system comprises a controlling center and at least one controls substation, the drived control one hydraulic coupler soft starting device that each control substation is corresponding, and carries out data acquisition; And each control substation of controlling center control linkage, and connect with the power transducer data in motor starter in each hydraulic coupler soft starting device.
Preferably, described controlling center and the multimachine power balance master mode controlling to control with speed, power Double-loop between substation control to adjust any fluid coupling apparatus soft start points driving for belt conveyor, and realize power balance.
Preferably, speed ring opened loop control and speed ring closed loop control is adopted in described multimachine power balance master mode.
Preferably, described controlling center is formed primarily of 1756 type PLC, controls substation and forms primarily of 1794 type PLC, is connected between controlling center with control substation by ControlNet fieldbus data.
Based on the belt conveyer multimachine balanced driving method that above-mentioned belt conveyer multimachine drive system is carried out, this driving method utilizes MS master-slave distributed frame PLC control system to select to control arbitrary hydraulic coupler soft starting device with the master mode of multimachine power balance, and keeps power balance.
Preferably, the hydraulic coupler soft starting device that described driving method is started according to selection by the controlling center in PLC control system, to the control substation sending controling instruction of correspondence;
Control substation controls hydraulic coupler in corresponding hydraulic coupler soft starting device liquid feed valve and tapping valve action according to control command, regulate that hydraulic coupler fills, lifting rate, so regulation output torque, rotating speed, realize conveyer soft start; Control the data that substation gathers hydraulic coupler operation simultaneously, and feed back to controlling center;
Controlling center directly gathers the power signal of motor in the hydraulic coupler soft starting device selecting to start, and combines the data controlling substation feedback, carries out the control of multimachine power balance.
Preferably, the double-loop control pattern adopting speed open loop and power ring to close in described controlling center controls to realize multimachine power balance.
Belt conveyer multimachine drive scheme based on hydraulic coupler soft starting device provided by the invention, can meet conveyer and start steady, power balance, meet low speed test strip 1m/s (1 hour) requirement.
Especially for concertina type conveyer can according to conveyer power requirement drop into drive quantity play energy-conserving action or wherein a certain drive fault need excision time, ensure wherein any two to drive, three to drive, many combination drivings such as 4 wheel driven can power balance.
Accompanying drawing explanation
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is the system architecture diagram of belt conveyer multimachine balance drive systems in the embodiment of the present invention;
Fig. 2 is the systematic schematic diagram of belt conveyer multimachine balance drive systems in the embodiment of the present invention;
Fig. 3 is the Starting control diagram of circuit 1 of belt conveyer multimachine balance drive systems in the embodiment of the present invention;
Fig. 4 is the Starting control diagram of circuit 2 of belt conveyer multimachine balance drive systems in the embodiment of the present invention;
Fig. 5 is the Starting control diagram of circuit 3 of belt conveyer multimachine balance drive systems in the embodiment of the present invention;
Fig. 6 is the Starting control diagram of circuit 4 of belt conveyer multimachine balance drive systems in the embodiment of the present invention;
Fig. 7 is the control flow chart of belt conveyer multimachine balance drive systems orderly shutdown in the embodiment of the present invention;
Fig. 8 is the control flow chart of belt conveyer multimachine balance drive systems sudden stop in the embodiment of the present invention.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
See Fig. 1, be depicted as the system architecture diagram of belt conveyer multimachine balance drive systems in this example.This multimachine balance drive systems coordinates formation primarily of PLC control system and some Fu Yite impeller disk soft starting devices.
Concrete, the Fu Yite impeller disk soft starting device 100 in native system to cooperatively interact formation primarily of motor 101, Fu Yite impeller disk 102, retarder 103, coupler 104.
Wherein, motor 101 is provided with motor starter, its output shaft connects Fu Yite impeller disk 102 input shaft, Fu Yite impeller disk 102 input shaft rotates, pump impeller drives fluid to rotate, mechanical energy is converted to liquid kinetic energy, liquid kinetic energy drives turbine to rotate, convert again mechanical energy to export, Fu Yite impeller disk 102 output shaft connection reducer 103 input shaft, transmit torque to output shaft by gear, retarder 103 is connected to the head roll 105 in belt conveyer by coupler 104, thus moment is outputted to cylinder.
Fu Yite impeller disk 102 charging pump runs, and by liquid feed valve and tapping valve action control oil mass, and then regulate torque.The normally closed design of its liquid feed valve, energized action opens feed liquor; Tapping valve often offers meter, energized action not discharge opeing.
In this process, by the size of power transmission ability can only be realized by regulating filling amount size between Fu Yite impeller disk 102 pump impeller and turbine, and Fu Yite impeller disk 102 filling amount is regulated to be realized by PLC control system.
This PLC control system is some Fu Yite impeller disk soft starting devices 100 of the MS master-slave distributed frame control linkage be made up of 1 controlling center 200 and multiple control substation 300, and select to control arbitrary Fu Yite impeller disk soft starting device 100 with the master mode of multimachine power balance, and keep power balance.
Wherein, control substation 300 and make drive division, with the liquid feed valve of drived control Fu Yite impeller disk 102 and tapping valve action, gather the related data (as oil temperature, oil pressure, output shaft rotating speed, feed liquor, discharge opeing etc.) that Fu Yite impeller disk 102 runs simultaneously.
The quantity controlling substation 300 is consistent with drive division quantity (i.e. the quantity of Fu Yite impeller disk soft starting device 100), and installation site is on drive division (i.e. Fu Yite impeller disk soft starting device 100) side.
Controlling center 200 is as whole belt conveyer control center and data computation center, the each control substation 300 of its control linkage, and connect with power transducer 106 (see Fig. 2) data in the motor starter that motor 101 in each Fu Yite impeller disk soft starting device 100 configures.
Controlling center 200 gathers the data of feedback according to controlling substation 300, calculate the output speed signal of Fu Yite impeller disk soft starting device 100; Gathered the information of corresponding motor operation simultaneously by power transducer, calculate according to the 4-20mA current signal that power transducer exports the power signal obtaining motor; And form speed, power Double-loop master mode accordingly, with this control Fu Yite impeller disk liquid feed valve and tapping valve action, regulate that Fu Yite impeller disk fills, lifting rate, so regulation output torque, rotating speed, realize conveyer soft start; And for any two driving, three to drive, the type of drive (selecting to drive the Fu Yite impeller disk soft starting device 100 of any amount) of many combinations such as 4 wheel driven can ensure that power of motor balances, speed sync.
Further, concrete employing speed ring opened loop control in this power balancing method, power ring closed loop control, thus ensure can select arbitrarily to drive and drive quantity, all can realize power balance, and meet conveyer low speed test strip 1m/s (1 hour) operating needs.
Based on such scheme, this balance drive systems is when specific implementation, and as shown in Figure 2, controlling center 200 adopts AB company 1756 series of PLC module; Control substation 300 and adopt the serial remote I/O module of AB company 1794; Adopt ControlNet fieldbus 400 data to connect between controlling center 200 and control substation 300, realize being connected by ContronNet network service.
Controlling center 200 control core forms primarily of 1756CPU (201), 1756DI module 203,1756DO module 204,1756AI module 205, ethernet communication module 206 and ControlNet communication module 202.1756CPU (201) is data and the control center of whole system, and other signal of belt conveyer or controlled plant can be completed by the 1756CPU (201) in controlling center 200; ControlNet communication module 202 is for connecting ControlNet fieldbus 400, and in addition, this system also to access in factories and miness centralized control system Ethernet 500 by ethernet communication module 206; And in Fu Yite impeller disk soft starting device 100, motor switch internal power transmitter 106 exports 4-20mA current signal and is linked in 1756AI module 205, balances for 1756CPU (201) rate of doing work.
Corresponding control substation 300 forms primarily of 1794 series modules and intermediate relay 305, and 1794 series modules have 1794 communication modules 301,1794DI module 302,1794DO module 303,1794AI module 304.
Thus, Fu Yite impeller disk 102 in this control substation 300 control linkage Fu Yite impeller disk soft starting device 100, especially by the impeller disk liquid feed valve in intermediate relay 305 control Fu Yite impeller disk 102 and tapping valve, adjustment Fu Yite impeller disk 102 fills, lifting rate, and gathers the coherent signal regulating Fu Yite impeller disk 102 to run simultaneously: oil temperature signal 110, fuel injection pressure signal 111, output shaft rotational speed pulse signal 112, liquid feed valve actuating signal 113 and tapping valve actuating signal 114.
Wherein gather liquid feed valve actuating signal 113 and tapping valve actuating signal 114 by 1794DI module 302; Drive division temperature is gathered, as oil temperature signal 110, fuel injection pressure signal 111 by 1794AI module 304; Detect output shaft rotational speed pulse signal 112 by proximity switch simultaneously.
In the PLC control system formed accordingly, controlling center 200 is communicated by ControlNet fieldbus 400 with control substation 300, realizes data exchange.
Controlling center 200 send fill, discharge opeing order, to be sent on ControlNet network on 400 by ControlNet communication module 202; Control substation 300 by 1794 communication modules 301 from ControlNet network 400 receive this order, control signal is exported by 1794DO module 303, control impeller disk liquid feed valve and tapping valve by intermediate relay 305, after liquid feed valve and tapping valve action, return action signal 113,114 gives 1794DI module 302; Control substation 300 and this improving backhaul is returned controlling center 200, namely control the data that collect of substation 300 and to be sent on ControlNet network on 400 by 1794 communication modules 301, controlling center 200 is received by ControlNet communication module 302.
Moreover each driving first must detect oil temperature 110 and oil pressure 111 before driving, and oil temperature 110 just allows cycling start lower than 60 degree; Oil pressure 111 must ensure that charging pump starts, and plays lubrication and cooling effect.The impulse singla that output shaft rotational speed pulse signal 112 is detected by proximity switch, according to the relation of rotating speed and linear velocity, calculates Roller conveyor speed, ensures the difference of Roller conveyor speed and belt speed within the specific limits, otherwise easily occurs " skidding " phenomenon.
See Fig. 3-8, it is depicted as the diagram of circuit carrying out points driving for belt conveyor based on above-mentioned multimachine balance drive systems.
Whole process is divided into cycling start, two processes of stopping.Stop and be divided into orderly shutdown and sudden stop two kinds of situations again.
See Fig. 3-7, it is depicted as the Starting control flow process of this belt conveyer multimachine balance drive systems.
First need during cycling start check controlling center and control the inside and outside failure condition of slave station, do not have fault just can start to start attached small machine, comprise impeller disk charging pump, impeller disk cooling fan, motor cooling fan, wherein impeller disk charging pump must start, detected by oil pressure, play the effect of impeller disk lubrication and cooling.Then take-off the brake lock, motor successively interval 3-6S starts, and now impeller disk does not have output torque, and head roll keeps static.
Next fill tapping valve by control and regulate fluid amount, realize conveyer soft start and power balance, complete unloaded testing process, pre-tensioner process, dragging process, accelerator successively until started.Power balance starts to complete input to startup in pre-tensioner process, and power of motor signal, as input, enters, tapping valve action is as output.
Then, ask for power of motor signal averaging P^, Pmax=1.05*P^, Pmin=0.95*P^, each power of motor value and Pmax, Pmin compare, if be greater than Pmax, tapping valve is opened, and liquid feed valve closes; If be less than Pmin, liquid feed valve is opened, and tapping valve closes; If between Pmax and Pmin, liquid feed valve and tapping valve all close.Power balance with time T for one-period, liquid feed valve, tapping valve t1 opening time (t1<T).
See Fig. 7 and Fig. 8, it is depicted as the flow process that this belt conveyer multimachine balance drive systems carries out orderly shutdown and sudden stop.
Orderly shutdown keeps motor power 30S, and impeller disk discharge opeing not topping up, when belt speed is lower than brake sticking brake during 0.2m/s.
Sudden stop cuts away band-type brake after motor power, and after stopping, impeller disk charging pump and cooling fan continue to run more than 60S, play lubrication and cooling effect.
As from the foregoing, the belt conveyer multimachine balance drive scheme that this example provides, conveyer can be met and start steady, power balance, meet test strip requirement, especially concertina type conveyer according to conveyer power requirement drop into drive quantity play energy-conserving action or wherein a certain drive fault need excision time, ensure wherein any two drive, three drive, 4 wheel driven can power balance.
Wherein, concrete employing speed ring opened loop control, power ring closed loop control realizes multimachine power balance, can select arbitrarily to drive and drive quantity, all can realize power balance, and meet conveyer low speed test strip 1m/s (1 hour) operating needs.
More than show and describe groundwork of the present invention, principal character and advantage of the present invention.The technical personnel of the industry should be understood; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (10)
1., based on a belt conveyer multimachine balance drive systems for hydraulic coupler soft starting device, it is characterized in that, described drive system comprises:
At least one hydraulic coupler soft starting device, the drive disk assembly of described hydraulic coupler soft starting device points driving for belt conveyor;
PLC control system, described PLC control system by MS master-slave distributed frame control linkage hydraulic coupler soft starting device, and is selected to control arbitrary hydraulic coupler soft starting device with the master mode of multimachine power balance, and keeps power balance.
2. a kind of belt conveyer multimachine balance drive systems based on hydraulic coupler soft starting device according to claim 1, it is characterized in that, described hydraulic coupler soft starting device mainly comprises: motor, hydraulic coupler, retarder and motor starter, and the output shaft of described motor is connected to parts to be driven by hydraulic coupler, retarder successively; Described hydraulic coupler is controlled by PLC control system, and described motor starter is connected with motor, and the power transducer in it gathers power of motor signal, and reaches PLC control system.
3. a kind of belt conveyer multimachine balance drive systems based on hydraulic coupler soft starting device according to claim 2, it is characterized in that, described hydraulic coupler is Fu Yite impeller disk, charging pump runs, and by liquid feed valve and tapping valve action control oil mass, and then adjustment torque, the normally closed design of liquid feed valve wherein, tapping valve often offers meter.
4. a kind of belt conveyer multimachine balance drive systems based on hydraulic coupler soft starting device according to claim 1 and 2, it is characterized in that, described PLC control system comprises a controlling center and at least one controls substation, the drived control one hydraulic coupler soft starting device that each control substation is corresponding, and carry out data acquisition; And each control substation of controlling center control linkage, and connect with the power transducer data in motor starter in each hydraulic coupler soft starting device.
5. a kind of belt conveyer multimachine balance drive systems based on hydraulic coupler soft starting device according to claim 4, it is characterized in that, described controlling center and the multimachine power balance master mode controlling to control with speed, power Double-loop between substation control to adjust any fluid coupling apparatus soft start points driving for belt conveyor, and realize power balance.
6. a kind of belt conveyer multimachine balance drive systems based on hydraulic coupler soft starting device according to claim 5, is characterized in that, adopts speed ring opened loop control and speed ring closed loop control in described multimachine power balance master mode.
7. a kind of belt conveyer multimachine balance drive systems based on hydraulic coupler soft starting device according to claim 4, it is characterized in that, described controlling center is formed primarily of 1756 type PLC, control substation to form primarily of 1794 type PLC, connected by ControlNet fieldbus data between controlling center with control substation.
8. the belt conveyer multimachine balanced driving method based on hydraulic coupler soft starting device, it is characterized in that, described driving method utilizes MS master-slave distributed frame PLC control system to select to control arbitrary hydraulic coupler soft starting device with the master mode of multimachine power balance, and keeps power balance.
9. a kind of belt conveyer multimachine balanced driving method based on hydraulic coupler soft starting device according to claim 8, it is characterized in that, the hydraulic coupler soft starting device that described driving method is started according to selection by the controlling center in PLC control system, to the control substation sending controling instruction of correspondence;
Control substation controls hydraulic coupler in corresponding hydraulic coupler soft starting device liquid feed valve and tapping valve action according to control command, regulate that hydraulic coupler fills, lifting rate, so regulation output torque, rotating speed, realize conveyer soft start; Control the data that substation gathers hydraulic coupler operation simultaneously, and feed back to controlling center;
Controlling center directly gathers the power signal of motor in the hydraulic coupler soft starting device selecting to start, and combines the data controlling substation feedback, carries out the control of multimachine power balance.
10. a kind of belt conveyer multimachine balanced driving method based on hydraulic coupler soft starting device according to claim 9, it is characterized in that, the double-loop control pattern adopting speed open loop and power ring to close in described controlling center controls to realize multimachine power balance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510995999.2A CN105523346B (en) | 2015-12-25 | 2015-12-25 | A kind of ribbon conveyer multimachine balance drive systems and method based on fluid-flywheel clutch soft starting device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510995999.2A CN105523346B (en) | 2015-12-25 | 2015-12-25 | A kind of ribbon conveyer multimachine balance drive systems and method based on fluid-flywheel clutch soft starting device |
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| CN105523346A true CN105523346A (en) | 2016-04-27 |
| CN105523346B CN105523346B (en) | 2017-12-29 |
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| CN201510995999.2A Expired - Fee Related CN105523346B (en) | 2015-12-25 | 2015-12-25 | A kind of ribbon conveyer multimachine balance drive systems and method based on fluid-flywheel clutch soft starting device |
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Cited By (3)
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| CN106115218A (en) * | 2016-08-24 | 2016-11-16 | 中交航局安装工程有限公司 | Harbour based on speed regulation type hydrodynamic coupler belt control system and control method |
| CN106494846A (en) * | 2016-12-22 | 2017-03-15 | 北方重工集团有限公司 | A kind of multi-points driving for belt conveyor control system |
| CN114604577A (en) * | 2020-12-04 | 2022-06-10 | 南京宝地梅山产城发展有限公司 | Driving capability balancing system of multi-drive belt conveyor and control method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106115218A (en) * | 2016-08-24 | 2016-11-16 | 中交航局安装工程有限公司 | Harbour based on speed regulation type hydrodynamic coupler belt control system and control method |
| CN106494846A (en) * | 2016-12-22 | 2017-03-15 | 北方重工集团有限公司 | A kind of multi-points driving for belt conveyor control system |
| CN114604577A (en) * | 2020-12-04 | 2022-06-10 | 南京宝地梅山产城发展有限公司 | Driving capability balancing system of multi-drive belt conveyor and control method |
| CN114604577B (en) * | 2020-12-04 | 2023-09-05 | 南京宝地梅山产城发展有限公司 | Multi-drive belt conveyor driving capacity balancing system and control method |
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| CN105523346B (en) | 2017-12-29 |
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Granted publication date: 20171229 Termination date: 20181225 |