CN109944812A - A kind of speed automatic control system of sugarcane combine wind removing machine - Google Patents
A kind of speed automatic control system of sugarcane combine wind removing machine Download PDFInfo
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- CN109944812A CN109944812A CN201910267475.XA CN201910267475A CN109944812A CN 109944812 A CN109944812 A CN 109944812A CN 201910267475 A CN201910267475 A CN 201910267475A CN 109944812 A CN109944812 A CN 109944812A
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- 240000000111 Saccharum officinarum Species 0.000 title claims abstract description 53
- 235000007201 Saccharum officinarum Nutrition 0.000 title claims abstract description 53
- 239000000523 sample Substances 0.000 claims abstract description 31
- 238000007664 blowing Methods 0.000 claims abstract description 8
- 239000002828 fuel tank Substances 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 11
- 239000003921 oil Substances 0.000 description 12
- 238000003306 harvesting Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/14—Measures for saving energy, e.g. in green houses
Abstract
The invention discloses a kind of speed automatic control systems of sugarcane combine wind removing machine, the system includes mounted in running motor, cutterhead motor, cutting motor and the pressure sensor on blower motor and the speed probe on running motor and blower motor, the output end of four pressure sensors and two speed probes connects with the input terminal of control unit, the output end of control unit connects with the input terminal of proportional amplifier, and the output end of proportional amplifier and the proportional flow control valve of control blower motor revolving speed are electrically connected.Control system of the present invention can recognize that three kinds of different working conditions of sugarcane combine, and blowing machine rotating speed of target value is matched according to working condition, and the valve port opening by adjusting proportional flow control valve makes rotation speed of fan reach rotating speed of target value, to reduce the sugarcane percentage of impurity and loss late of sugar-cane cutting machine, and entire control process high degree of automation, accuracy is good, stability is high, structure is simple, has practical application value.
Description
Technical field
The present invention relates to automatic control technology field, the revolving speed of specifically a kind of sugarcane combine wind removing machine is automatic
Control system.
Background technique
Sugarcane is the main sugar crop in China, and the development of Sugarcane Industry not only directly affects the income of several ten million sugarcane growers
With life, and it is directly related to China's grain security.However, China's sugarcane mechanization yield rate is less than 1% at present, sugarcane connection
The high percentage of impurity of sugarcane and high loss late for closing harvester are to restrict one of the principal element that its mechanization is promoted.By document and grind
Study carefully discovery, the rotation speed of fan of sugarcane combine affects percentage of impurity and loss late, sugarcane combining to a certain extent
Machine rotation speed of fan is excessively high to will cause loss late height, and rotation speed of fan is too low to will cause percentage of impurity height, it is, thus, sought for a control
System can identify the working condition of sugar-cane cutting machine, and match rotation speed of fan according to its state, make sugarcane combine
Sugarcane percentage of impurity and loss late reduce.The loss of peasant and the sugar making cost in sugar refinery were both reduced in this way, to sugarcane combining
The mechanization popularization of machine also functions to vital effect.
Summary of the invention
The technical problem to be solved by the present invention is to a kind of speed automation systems of sugarcane combine wind removing machine
System, which can recognize that three kinds of different working conditions of sugarcane combine, and match outlet air according to working condition
Machine rotating speed of target value, the valve port opening for adjusting proportional flow control valve makes rotation speed of fan reach rotating speed of target value, to reduce sugarcane receipts
The sugarcane percentage of impurity and loss late of cutting mill.
The present invention solves above-mentioned technical problem by the following technical programs:
A kind of speed automatic control system of sugarcane combine wind removing machine of the present invention, including four be separately mounted to
Running motor, cutterhead motor, cutting motor and pressure sensor on blower motor and two are separately mounted to running motor
With the speed probe on blower motor, the signal output end of this four pressure sensors and two speed probes with control
The input terminal of unit is connected, and the output end of control unit is connected with the input terminal of proportional amplifier, proportional amplifier it is defeated
The proportional flow control valve of outlet and control blower motor revolving speed is electrically connected, and control unit is according to the Signal Matching blowing machine mesh of input
Tachometer value is marked, and proportional flow is controlled according to the deviation of both the actual speed value of blower motor and scheduled rotating speed of target value
The flow of valve, so that the revolving speed of blower motor be made to reach scheduled rotating speed of target value.
Four pressure sensors of the present invention, two speed probes, control unit, proportional amplifiers with switch electricity
Source is connected.
Control unit of the present invention uses PLC controller.
Pressure sensor of the present invention uses pressure transmitter, and pressure transmitter connects in running motor, cutterhead motor, cuts
On the oil inlet oil circuit of disconnected motor and blower motor.
Speed probe of the present invention uses Hall sensor, is separately mounted to running motor axis and blower motor axis
It tests the speed in rack, speed probe output pulse signal.
Proportional flow control valve of the present invention is electro-hydraulic proportional flow valve, proportional flow control valve and blower motor, 3-position 4-way electricity
Magnetic reversal valve, hydraulic pump and fuel tank form hydraulic circuit.
Switching Power Supply of the present invention is 24V Switching Power Supply.
Compared with prior art, the invention has the following beneficial effects:
The present invention is collaborated using the joint debugging of multi executors (i.e. running motor, cutterhead motor, cutting motor and blower motor),
And the pressure sensor by being mounted on actuator and speed probe realize the working condition of signal detection sugar-cane cutting machine,
An optimal blower rotating speed of target value is matched according to sugar-cane cutting machine working condition by control unit, then passes through adjusting ratio
The valve port opening of flow valve makes rotation speed of fan reach rotating speed of target value, to reduce sugarcane percentage of impurity and the loss of sugar-cane cutting machine
Rate, entire control process high degree of automation, using PLC controller, accuracy is good, stability is high, structure is simple, has practical
Application value.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the speed automatic control system of sugarcane combine wind removing machine of the present invention.
Fig. 2 is the knot that the speed automatic control system of sugarcane combine wind removing machine of the present invention is connect with Switching Power Supply
Structure schematic diagram.
In figure: 101- speed probe, 102- speed probe, 2- running motor, 3- cutterhead motor, 4- cut off motor,
501- pressure sensor, 502- pressure sensor, 503- pressure sensor, 504- pressure sensor, 6- proportional amplifier, 7- wind
Machine motor, 8- proportional flow control valve, 9- three-position four-way electromagnetic directional valve, 10- hydraulic pump, 11- driving motor, 12- overflow valve, 13-
Fuel tank, 14- Switching Power Supply, 15- control unit.
Specific embodiment
Technical solution of the present invention is described further with reference to the accompanying drawings and examples.Embodiment is only the present invention
A part of the embodiment, instead of all the embodiments, based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
As depicted in figs. 1 and 2, the speed automatic control system of sugarcane combine wind removing machine of the present invention includes installation
In the pressure sensor 503 and speed probe 101, the pressure sensor 504 that is mounted on blower motor 7 on running motor 2
With speed probe 102, the pressure sensor being mounted on cutterhead motor 3 502, the pressure sensing being mounted on cutting motor 4
Device 501, control unit 15, proportional amplifier 6, proportional flow control valve 8, wherein control unit 15 can use PLC controller, C
Mouthful, D mouthful, F mouthful, G mouthful, H mouthful, I mouthfuls be signal input port, E mouthfuls are power port, and J mouthfuls are signal output port, and work is electric
Pressure is 0~24V, 0~10V of output voltage;The pressure sensor can use pressure transmitter, and pressure transmitter connects four
A actuator (running motor 2, cutterhead motor 3, cutting motor 4 and blower motor 7 that actuator refers to sugar-cane cutting machine)
On the oil inlet oil circuit of hydraulic motor oil circuit, pressure transmitter exports 0~10V voltage signal;The speed probe can be with
Using Hall sensor, it is separately mounted to testing the speed in rack for running motor axis and blower motor axis, speed probe is defeated
Pulse signal out.
As shown in Fig. 2, pressure sensor 503, pressure sensor 504, pressure sensor 502, pressure sensor 501, turn
The signal output end of fast sensor 102 and speed probe 101 respectively with C mouthfuls of signal input part, H mouthfuls, F of control unit 15
Mouthful, G mouthfuls, I mouthfuls, D mouthfuls be connected, L mouthfuls of input terminal of J mouthfuls of the signal output end of control unit 15 and proportional amplifier 6 are connected,
L3 mouthfuls of the output end electric connections of proportional flow control valve 8 with control blower motor revolving speed of proportional amplifier 6,15 basis of control unit
Input pressure signal and tach signal matching blowing machine rotating speed of target value, and according to the actual speed value of blower motor with
The flow of the deviation control proportional flow control valve 8 of both scheduled rotating speed of target values, so that the revolving speed of blower motor be made to reach pre-
Fixed rotating speed of target value.
Pressure sensor 503 of the present invention, pressure sensor 502, pressure sensor 501, turns pressure sensor 504
Fast sensor 102 and speed probe 101, control unit 15, proportional amplifier 8 and three-position four-way electromagnetic directional valve 9 with open
Powered-down source 14 is connected, and Switching Power Supply is 24V Switching Power Supply, and Switching Power Supply passes through electric wire cut-in pressure sensor 501, pressure respectively
Force snesor 502, pressure sensor 503, pressure sensor 504, speed probe 101, speed probe 102,3-position 4-way
The K1 mouth of solenoid directional control valve 9 and K2 mouthfuls, the E mouth of control unit 15, proportional amplifier 8 L2 mouth, provide power supply for them.
Proportional flow control valve 8 of the present invention use electro-hydraulic proportional flow valve, proportional flow control valve 8 with blower motor 7, three four
Electric change valve 9, hydraulic pump 10 and fuel tank 13 form hydraulic circuit, and hydraulic pump 10 drives its work, liquid by driving motor 11
Road is pushed back substantially to move towards are as follows: oil circuit accesses 10 oil inlet of hydraulic pump since fuel tank 13, rear oil duct in the fuel-displaced of hydraulic pump 10
Mouthful it is divided into two-way, accesses the P mouth of three-position four-way electromagnetic directional valve 9 all the way, the A mouth of three-position four-way electromagnetic directional valve 9 incoming stream again
The M2 mouth of proportioning valve 8 is measured, the M3 mouth of flow proportion valve 8 accesses the N1 mouth of blower motor 7, the N2 mouth access three of blower motor 7 again
The T mouth of the B mouth of position four-way electromagnetic reversing valve 9, three-position four-way electromagnetic directional valve 9 accesses fuel tank 13;Another way accesses overflow valve 12
The oil outlet of oil inlet, overflow valve 12 is connect with fuel tank 13.
The working principle of the speed automatic control system of sugarcane combine wind removing machine of the present invention is as follows:
Voltage signal is output to the C mouth of control unit 15 by the pressure sensor 503 being mounted on running motor 2, installation
Running motor axis the speed probe 101 to test the speed in rack by the D mouth of output of pulse signal to control unit 15, be mounted on
Voltage signal is output to the F mouth of control unit 15 by the pressure sensor 502 on 3 oil circuit of cutterhead motor, is mounted on cutting motor 4
Voltage signal is output to the G mouth of control unit 15 by the pressure sensor 501 on oil circuit, is mounted on 7 oil circuit of blower motor
Voltage signal is output to the H mouth of control unit 15 by pressure sensor 504, is mounted on testing the speed for blower motor axis and is turned in rack
Pulse feedback signal is output to the I mouth of control unit 15 by fast sensor 102, control unit 15 according to C mouthfuls, D mouthfuls, F mouthfuls, G mouthfuls,
The current working condition of the signal identification of H mouthfuls and I mouthfuls inputs matches blowing machine rotating speed of target value, and a voltage letter is exported at J mouthfuls
Number, the L1 mouth of the voltage signal input proportional amplifier 6 of output converts current signal for voltage signal by proportional amplifier 6
Control mouth M1 through L3 mouthfuls of access flow proportioning valves 8, the valve port opening of flow proportion valve 8 is controlled according to the size of current of output
Size, to control the revolving speed of blower motor 7, the speed probe 102 of blower motor 7 constantly feedback actual speed value is to control
Unit 15, control unit 15 constantly regulate proportional flow according to the deviation of feedback actual speed value and blower rotating speed of target value
Valve 8, until the tachometer value of blower motor 7 reaches scheduled rotating speed of target value.
The control unit 15 (i.e. PLC controller) of automatic control system of the present invention is according to three kinds of works of sugarcane combine
Make the matching that state carries out blower rotating speed of target value, three kinds of work states respectively gather at a slow speed state (A), middling speed gathers in shape
State (B) quickly gathers in state (C), rotating speed of target value (the i.e. wind for the working condition and sugar-cane cutting machine that control unit 15 recognizes
Machine motor rotary speed range) relationship be shown in Table 1:
Table 1
The method for determining the rotating speed of target value (i.e. the optimized rotating speed value of blower motor) of sugar-cane cutting machine is as follows:
When sugarcane combine is to gather in state (A) at a slow speed, by sugarcane combine according to gathering in state at a slow speed
Data acquisition is carried out to be gathered under identical distance with different rotation speed of fan in the speed of travel range of the state,
Record the corresponding percentage of impurity of different rotation speed of fan and loss late and running motor pressure limit [PA1, PA2], cutterhead motor
Pressure limit [PA3, PA4], cutting motor pressure range [PA5, PA6], blower motor pressure limit [PA7, PA8], walking horse
Up to the range of speeds [NA1, NA2], the revolving speed corresponding to the sum of percentage of impurity and the loss late minimum is optimum speed NA, i.e.,
With blowing machine rotating speed of target value NA.
When sugarcane combine is that middling speed gathers in state (B), sugarcane combine is gathered in into state according to middling speed
Data acquisition is carried out to be gathered under identical distance with different rotation speed of fan in the speed of travel range of the state,
Record the corresponding percentage of impurity of different rotation speed of fan and loss late and running motor pressure limit [PB1, PB2], cutterhead motor
Pressure limit [PB3, PB4], cutting motor pressure range [PB5, PB6], blower motor pressure limit [PB7, PB8], walking horse
Up to the range of speeds [NB1, NB2], the revolving speed corresponding to the sum of percentage of impurity and the loss late minimum is optimum speed NB, i.e.,
With blowing machine rotating speed of target value NB.
When sugarcane combine is high speed harvesting state (C), sugarcane combine is gathered in into state according to high speed
Data acquisition is carried out to be gathered under identical distance with different rotation speed of fan in the speed of travel range of the state,
Record the corresponding percentage of impurity of different rotation speed of fan and loss late and running motor pressure limit [PC1, PC2], cutterhead motor
Pressure limit [PC3, PC4], cutting motor pressure range [PC5, PC6], blower motor pressure limit [PC7, PC8], walking horse
Up to the range of speeds [NC1, NC2], the revolving speed corresponding to the sum of percentage of impurity and the loss late minimum is optimum speed NC, i.e.,
With blowing machine rotating speed of target value NC.
After determining the rotating speed of target value under different working condition, programming is carried out to control unit (PLC controller),
By running motor velocity interval corresponding to record three kinds of harvesting states, running motor pressure limit, cutterhead motor pressure
In range, cutting motor pressure range, blower pressure range and optimal rotation speed of fan write-in program, enable blower motor with optimal
Tachometer value cleans.
The course of work of the speed automatic control system of sugarcane combine wind removing machine of the present invention is as follows:
When 2 pressure value of running motor of sugar-cane cutting machine is on [PA1, PA2] MPa, 2 tachometer value of running motor [NA1,
NA2] r/min is upper, 3 pressure value of cutterhead motor [PA3, PA4] MPa is upper, cutting 4 pressure value of motor [PA5, PA6] MPa it is upper,
7 pressure value of blower motor is implemented to gather in state (A) at a slow speed, control process is: by mounted in walking horse on [PA7, PA8] MPa
Up to the pressure of the pressure sensor of pressure sensor, cutterhead motor 3 on 2, the pressure sensor for cutting off motor 4, blower motor 7
Sensor and load onto the speed probe of running motor 2 respectively to 15 input voltage signal of control unit or pulse signal,
The voltage signal that control unit 15 matches the current blower rotating speed of target value for gathering in state (A) at a slow speed is exported in J mouthfuls, and ratio is put
The L1 mouth access voltage signal of big device 6 simultaneously switchs to M1 mouth of the current signal in L3 mouthfuls of outputs to proportional flow control valve, control unit 15
The blower rotating speed of target voltage signal of output be UA, corresponding rotating speed of target value be NA, by blower motor 7 speed probe not
Disconnected feedback actual speed to control unit 15 I mouth, to make PLC controller 15 according to the inclined of actual speed and rotating speed of target
Difference, the valve core opening for constantly regulate proportional flow control valve 9 is small big, until the tachometer value of blower motor 7 is fallen on rotating speed of target value NA,
Control process terminates.
When 2 pressure value of running motor of sugar-cane cutting machine is on [PB1, PB2] MPa, 2 tachometer value of running motor [NB1,
NB2] r/min is upper, 3 pressure value of cutterhead motor [PB3, PB4] MPa is upper, cutting 4 pressure value of motor [PB5, PB6] MPa it is upper,
7 pressure value of blower motor implements middling speed harvesting state (B), control process is on [PB7, PB8] MPa: by mounted in walking horse
Up to the pressure of the pressure sensor of pressure sensor, cutterhead motor 3 on 2, the pressure sensor for cutting off motor 4, blower motor 7
Sensor and mounted in running motor 2 speed probe respectively to 15 input voltage signal of control unit or pulse signal,
The voltage signal that control unit 15 matches the blower rotating speed of target value of current middling speed harvesting state (B) is exported in J mouthfuls, and ratio is put
The L1 mouth access voltage signal of big device 6 simultaneously switchs to M1 mouth of the current signal in L3 mouthfuls of outputs to proportional flow control valve, control unit 15
The blower rotating speed of target voltage signal of output be UB, corresponding rotating speed of target value be NB, by blower motor 7 speed probe not
Disconnected feedback actual speed to control unit 15 I mouth, to make control unit 15 according to the deviation of actual speed and rotating speed of target,
The valve core opening for constantly regulate proportional flow control valve 9 is small big, until the tachometer value of blower motor 7 is fallen on rotating speed of target value NB, controls
Process processed terminates.
When 2 pressure value of running motor of sugar-cane cutting machine is on [PC1, PC2] MPa, 2 tachometer value of running motor [NC1,
NC2] r/min is upper, 3 pressure value of cutterhead motor [PC3, PC4] MPa is upper, cutting 4 pressure value of motor [PC5, PC6] MPa it is upper,
7 pressure value of blower motor implements high speed harvesting state (C), control process is on [PC7, PC8] MPa: by mounted in walking horse
Up to the pressure of the pressure sensor of pressure sensor, cutterhead motor 3 on 2, the pressure sensor for cutting off motor 4, blower motor 7
Sensor and mounted in running motor 2 speed probe respectively to 15 input voltage signal of control unit or pulse signal,
The voltage signal that control unit 15 matches the blower rotating speed of target value of current high speed harvesting state (C) is exported in J mouthfuls, and ratio is put
The L1 mouth access voltage signal of big device 6 simultaneously switchs to M1 mouth of the current signal in L3 mouthfuls of outputs to proportional flow control valve, control unit 15
The blower rotating speed of target voltage signal of output be UC, corresponding optimized rotating speed value be NC, by blower motor 7 speed probe not
Disconnected feedback actual speed to control unit 15 I mouth, to make control unit 15 according to the deviation of actual speed and rotating speed of target,
The valve core opening for constantly regulate proportional flow control valve 9 is small big, until the tachometer value of blower motor 7 is fallen on rotating speed of target value NC, controls
Process processed terminates.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, those of ordinary skill in the art will appreciate that realizing the whole and part process of above-described embodiment, and is wanted according to right of the present invention
Made equivalent variations is sought, is still belonged to the scope covered by the invention.
Claims (7)
1. a kind of speed automatic control system of sugarcane combine wind removing machine, which is characterized in that the system includes four
It is separately mounted to running motor, cutterhead motor, cutting motor and pressure sensor on blower motor and two is installed respectively
The signal output of speed probe on running motor and blower motor, this four pressure sensors and two speed probes
End is connected with the input terminal of control unit, and the output end of control unit is connected with the input terminal of proportional amplifier, ratio
The proportional flow control valve of the output end of amplifier and control blower motor revolving speed is electrically connected, and control unit is according to the signal of input
With blowing machine rotating speed of target value, and according to the deviation control of both the actual speed value of blower motor and scheduled rotating speed of target value
The flow of proportional flow control valve processed, so that the revolving speed of blower motor be made to reach scheduled rotating speed of target value.
2. the speed automatic control system of sugarcane combine wind removing machine according to claim 1, which is characterized in that institute
State four pressure sensors, two speed probes, control unit, proportional amplifiers are connected with Switching Power Supply.
3. the speed automatic control system of sugarcane combine wind removing machine according to claim 1 or claim 2, feature exist
In described control unit uses PLC controller.
4. the speed automatic control system of sugarcane combine wind removing machine according to claim 1 or claim 2, feature exist
In the pressure sensor uses pressure transmitter, and pressure transmitter connects in running motor, cutterhead motor, cutting motor and wind
On the oil inlet oil circuit of machine motor.
5. the speed automatic control system of sugarcane combine wind removing machine according to claim 1 or claim 2, feature exist
Hall sensor is used in, the speed probe, is separately mounted to testing the speed in rack for running motor axis and blower motor axis,
Speed probe output pulse signal.
6. the speed automatic control system of sugarcane combine wind removing machine according to claim 1 or claim 2, feature exist
In the proportional flow control valve is electro-hydraulic proportional flow valve, proportional flow control valve and blower motor, three-position four-way electromagnetic directional valve, liquid
Press pump and fuel tank form hydraulic circuit, and three-position four-way electromagnetic directional valve provides power supply by Switching Power Supply.
7. the speed automatic control system of sugarcane combine wind removing machine according to claim 1 or claim 2, feature exist
In the Switching Power Supply is 24V Switching Power Supply.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110622692A (en) * | 2019-09-09 | 2019-12-31 | 广西大学 | Intelligent identification method and system for running state of sugarcane combine harvester |
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