CN105612923A - Feed quantity control device and method of sugarcane harvester - Google Patents
Feed quantity control device and method of sugarcane harvester Download PDFInfo
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- CN105612923A CN105612923A CN201510997052.5A CN201510997052A CN105612923A CN 105612923 A CN105612923 A CN 105612923A CN 201510997052 A CN201510997052 A CN 201510997052A CN 105612923 A CN105612923 A CN 105612923A
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- feed quantity
- wheel
- plc
- harvesting sugarcane
- flow valve
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D45/00—Harvesting of standing crops
- A01D45/10—Harvesting of standing crops of sugar cane
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- Fluid-Pressure Circuits (AREA)
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Abstract
The invention discloses a feed quantity control device and method of a sugarcane harvester. The device comprises a pressure sensor, induction blocks, Hall sensors, an electric-hydraulic proportional flow valve and a PLC. The pressure sensor is installed on an inlet of a hydraulic motor of a sugarcane pressing roller and used for collecting loading pressure signals. The induction blocks are arranged on the edges of hubs of wheels. Each Hall sensor is arranged on one side of the corresponding induction block, and the Hall sensors are used for collecting the rotation speed of the wheels through the induction blocks. The electric-hydraulic proportional flow valve is used for controlling the traveling speed of the wheels of the sugarcane harvester. The input end of the PLC is connected with the pressure sensor and the Hall sensors, the output end of the PLC is connected with the electric-hydraulic proportional flow valve, and the PLC is used for obtaining the normal rotation speed of the wheels. When the loading pressure sensors exceed a preset value, the rotation speed of the wheels is controlled to be lower than the normal rotation speed. When the loading pressure sensors lower than the preset value, the rotation speed of the wheels is controlled to be the normal rotation speed. By detecting the feed quantity and the traveling speed in real time, feedback control of the feed quantity is achieved, the situation that the feed quantity is too large and accordingly a logistics channel is blocked is avoided, and work efficiency and sugarcane cutting quality are guaranteed.
Description
Technical field
The present invention relates to agricultural mechanical field, in particular to control device and the method for a kind of harvesting sugarcane machine feed quantity.
Background technology
Owing to harvesting sugarcane machine logistics corridor width is certain, so logistics system can only process the sugarcane of some amount, when the sugarcane quantity passed through in the unit time is greater than the processing power of logistics system, logistics corridor will block, and causes job interruption even component of machine damage. When farm work, owing to sugarcane distribution density is uneven, feed quantity size can change, it is necessary to adjustment walking speed in good time, makes feed quantity mate mutually with the processing power of logistics system. Traditional walking speed control method has manual type, mechanical liquid type etc., speed change gear complex structure, can not realize automatically regulating according to the change of feed quantity, causes that productivity is low, officer's labour intensity is big, control accuracy is low.
In recent years, the measurement of associating harvesting sugarcane machine feed quantity has been carried out big quantifier elimination by domestic and international expert, the method generally adopted is torque measurement method, namely the size of indirect inspection feed quantity is carried out by measuring the moment of torsion of cropper main drive shaft, but torque measurement method may be mechanical fault sometimes, the defect such as size error in judgement that can cause feed quantity.
The information being disclosed in this background section only is intended to increase the understanding of the general background to the present invention, and should not be regarded as admitting or imply that this information structure has been prior art that persons skilled in the art are known in any form.
Summary of the invention
It is an object of the invention to provide the control device of a kind of harvesting sugarcane machine feed quantity and method, it according to the walking speed of the size adjustment harvesting sugarcane machine of sugarcane feed quantity, can make feed quantity mate mutually with the processing power of logistics system, avoid tamper circulation road.
For achieving the above object, according to an aspect of the present invention, provide the control device of a kind of harvesting sugarcane machine feed quantity, comprise: pressure transmitter, it is installed on the upper pressure sugarcane roller of harvesting sugarcane machine or presses down the ingress of the oil motor of sugarcane roller, for gathering the load pressure signal of described oil motor; Sensor block, it is located at the hub edge of the wheel of harvesting sugarcane machine; Hall sensing device, it is located at the side of described sensor block, and when described rotation of wheel, this hall sensing device gathers the rotating speed of described wheel by described sensor block; Electro-hydraulic proportional flow valve, it is for controlling the walking speed of the wheel of harvesting sugarcane machine; And PLC, its input terminus is connected with described hall sensing device with described pressure transmitter respectively, output terminal is connected with described electro-hydraulic proportional flow valve, described PLC obtains the normal speed of described wheel by described hall sensing device, when described load pressure signal exceedes preset value, control described electro-hydraulic proportional flow valve and make described wheel lower than described normal speed; When described load pressure signal is lower than preset value, controls described electro-hydraulic proportional flow valve and make described wheel return to normal speed.
Preferably, in technique scheme, described sensor block is magnet steel.
Preferably, in technique scheme, described pressure transmitter is connected by the input terminus of wave filter with described PLC.
Preferably, in technique scheme, described wave filter is two rank bandpass filtering circuit.
Preferably, in technique scheme, described hall sensing device is connected with the input terminus of described PLC by shaping amplifier.
For achieving the above object, according to a further aspect in the invention, provide a kind of control method of harvesting sugarcane machine feed quantity, comprise the following steps: the upper pressure sugarcane roller that pressure transmitter is installed on harvesting sugarcane machine or the ingress pressing down the oil motor of sugarcane roller are to obtain the load pressure signal of oil motor; Hall sensing device is adopted to obtain the tach signal of described wheel according to the sensor block of the hub edge of the wheel being installed on harvesting sugarcane machine; Utilize the walking speed of the wheel of electro-hydraulic proportional flow valve control harvesting sugarcane machine; Adopt PLC to be obtained the normal speed of described wheel by described hall sensing device, when described load pressure signal exceedes preset value, control described electro-hydraulic proportional flow valve and make described wheel lower than described normal speed; When described load pressure signal is lower than preset value, control described electro-hydraulic proportional flow valve so that described wheel returns to normal speed.
Preferably, in technique scheme, described sensor block is magnet steel.
Preferably, in technique scheme, described load pressure signal is by being delivered to described PLC after filter filtering.
Preferably, in technique scheme, described wave filter is two rank bandpass filtering circuit.
Preferably, in technique scheme, described tach signal is delivered to described PLC by shaping amplifier.
Compared with prior art, the present invention has following useful effect:
1. the process that the present invention runs at harvesting sugarcane machine is pressed the load pressure real-time measuring feed quantity of sugarcane roller oil motor by pressure transmitter collection, speed is walked by the real-time detect lines of hall sensing device, achieve and harvesting sugarcane machine is walked speed according to feed quantity control lines, feed quantity is made to be in below preset value, avoid the logistics corridor blocking caused because feed quantity is excessive, thus make harvesting sugarcane machine be in efficient, stable working order all the time, ensure working efficiency and cut sugarcane quality.
2, the method for controlling number of revolution that other every profession and trade production process equipment can be widely applicable for, applied widely, there is higher reliability, it is possible to meet the demand of user.
Accompanying drawing explanation
Fig. 1 is the structure block diagram of the control device according to harvesting sugarcane machine feed quantity of the present invention.
Fig. 2 is the scheme of installation of the control device according to harvesting sugarcane machine feed quantity of the present invention.
Fig. 3 is the schematic circuit according to wave filter of the present invention.
Fig. 4 is the schematic circuit according to shaping amplifier of the present invention.
Fig. 5 is the schematic diagram of the walking system hydraulic pressure according to harvesting sugarcane machine of the present invention.
Main Reference Numerals illustrates:
1-pressure transmitter, 2-wave filter, 3-hall sensing device, 4-amplification shaping device, 5-PLC controller, 6-electro-hydraulic proportional flow valve, 7-walks oil motor, 8-magnet steel, the upper pressure sugarcane roller of 9-, and 10-presses down sugarcane roller, 11-sugarcane, 12-surplus valve, 13-hydro-pump, 14-tensimeter, 15-engine.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, it should be understood that protection scope of the present invention is not by the restriction of embodiment.
Clearly represent unless otherwise other, otherwise in whole specification sheets and claim book, term " comprises " or its conversion will be understood to include the element or integral part stated at such as " comprising " or " including " etc., and does not get rid of other element or other integral part.
First, before the specific embodiment of the invention is set forth, introduce the principle obtaining feed quantity by the pressure of pressure sugarcane roller oil motor, by the working process of harvesting sugarcane machine, sugarcane is just sent to follow-up logistics corridor through the upper pressure sugarcane roller of harvesting sugarcane machine with after pressing down sugarcane roller acting in conjunction, upper pressure sugarcane roller and press down sugarcane roller and all adopt fluid motor-driven, owing to the pressure of hydraulic circuit depends on load, therefore, when feed quantity size changes, the pressure of pressure sugarcane roller oil motor also changes thereupon. The load pressure of the big motor of feed quantity is just big; Otherwise, load pressure is then little.
As figure 1 shows the structural representation of the control device of harvesting sugarcane machine feed quantity according to the preferred embodiment of the present invention. As shown in Figure 1, the control device of harvesting sugarcane machine feed quantity comprises: pressure transmitter 1, sensor block 8, hall sensing device 3, wave filter 2, shaping amplifier 4, electro-hydraulic proportional flow valve 6 and PLC 5.
As depicted in figs. 1 and 2, pressure transmitter 1 is installed on the upper pressure sugarcane roller 9 of harvesting sugarcane machine or presses down the ingress of the oil motor of sugarcane roller 10, for gathering the load pressure signal of oil motor, and upper pressure sugarcane roller 9 and press down sugarcane roller 10 for transmitting sugarcane 11; Pressure transmitter 1 is connected with the input terminus of PLC 5 by wave filter 2, and pressure transmitter 1 is HM20 pressure transmitter, it is possible to meet response and sensitivity requirement fast; Wave filter 2 filtering out input signal containing assorted frequency composition, is resent to the input terminus of PLC 5, to improve the signal to noise ratio of system, in this embodiment, wave filter 2 is two rank bandpass filtering circuit, is made up of 1 operational amplifier and some electric capacity, resistance, and particular circuit configurations is shown in Fig. 3; Sensor block 8 is located at the hub edge of the wheel of harvesting sugarcane machine along with wheel synchronous rotary, sensor block 8 preferably adopts magnet steel, the side of sensor block is located at by hall sensing device 3, when the wheels turn, this hall sensing device 3 gathers the rotating speed of wheel by sensor block 8, be specially wheel often rotate a circle by magnet steel 8 produce magnetic field affect, hall sensing device 3 exports the pulse signal that its frequency is directly proportional to rotating speed, calculated the umber of pulse in the unit time by the counter of PLC 5, the rotating speed of rotation shaft of wheel can be obtained; Hall sensing device 3 is connected with the input terminus of PLC 5 by shaping amplifier 4, make pulse signal carry out amplifying, reach PLC 5 after Shape correction and process, wherein, in this embodiment, shaping amplifier 4 is made up of 1 operational amplifier, 1 shaping unicircuit and some electric capacity, resistance, specifically sees Fig. 4.
With continued reference to Fig. 5, this embodiment employing electro-hydraulic proportional flow valve 6 controls the walking speed of the wheel of harvesting sugarcane machine, and the output terminal of PLC 5 is connected with electro-hydraulic proportional flow valve 6; Electro-hydraulic proportional flow valve 6 specifically controls wheel system as shown in Figure 5, and Controlling System comprises: walking oil motor 7, electro-hydraulic proportional flow valve 6, tensimeter 14, surplus valve 12, hydro-pump 13 and engine 15; Concrete connection is as shown in Figure 5, hydro-pump 13 is driven to drive oil circuit by engine 15, oil circuit by electro-hydraulic proportional flow valve 6 be sent to walking oil motor 7 to drive wheel walk, wherein, PLC 5 exports electrical signal to electro-hydraulic proportional flow valve 6 according to the signal magnitude of input terminus, control the rotating speed of walking oil motor 7 with this, thus control the walking speed of harvesting sugarcane machine. In Fig. 4, electro-hydraulic proportional flow valve 6 controls wheel walking structure is general hydraulic traveling mechanism, and the introduction of this system, for better to understand the present invention, does not form the restriction to invention.
Below, for better understanding the concrete control principle of the control device of harvesting sugarcane machine feed quantity in the present embodiment, show the control method of this device, specifically comprise the following steps:
Step one, the upper pressure sugarcane roller 9 that pressure transmitter 1 is installed on harvesting sugarcane machine or the ingress pressing down the oil motor of sugarcane roller 10 are to obtain the load pressure signal of oil motor;
Step 2, hall sensing device 3 obtains the tach signal of wheel according to the sensor block of the hub edge of the wheel being installed on harvesting sugarcane machine;
Step 3, utilizes electro-hydraulic proportional flow valve 6 to control the walking speed of wheel of harvesting sugarcane machine;
Step 4, PLC 5 obtains the normal speed of wheel by hall sensing device 3, when load pressure signal exceedes preset value, the flow of control electro-hydraulic proportional flow valve 6 makes wheel lower than normal speed, reduce the walking speed of harvesting sugarcane machine, then the feed quantity of unit time also can reduce, and makes feed quantity remain on below preset value; When load pressure signal is lower than preset value, the flow of control electro-hydraulic proportional flow valve 6 makes wheel return to normal speed, makes feed quantity remain on preset value.
To sum up, the process that the present invention runs at harvesting sugarcane machine is pressed the load pressure real-time measuring feed quantity of sugarcane roller oil motor by pressure transmitter collection, speed is walked by the real-time detect lines of hall sensing device, achieve and harvesting sugarcane machine is walked speed according to feed quantity control lines, feed quantity is made to be in below preset value, avoid the logistics corridor blocking caused because feed quantity is excessive, thus make harvesting sugarcane machine be in efficient, stable working order all the time, ensure working efficiency and cut sugarcane quality.
The aforementioned description to the concrete exemplary of the present invention is to illustrate and the object of illustration. These descriptions not want to be defined as the present invention disclosed precise forms, and obviously, according to above-mentioned instruction, it is possible to carry out much changing and change. The object exemplary embodiment selected and describe is to explain the certain principles of the present invention and practical application thereof, so that the technician of this area can realize and utilize the various different exemplary of the present invention and various different selection and change. The scope of the present invention is intended to be limited by claim book and equivalents thereof.
Claims (10)
1. the control device of a harvesting sugarcane machine feed quantity, it is characterised in that, comprising:
Pressure transmitter, it is installed on the upper pressure sugarcane roller of harvesting sugarcane machine or presses down the ingress of the oil motor of sugarcane roller, for gathering the load pressure signal of oil motor;
Sensor block, it is located at the hub edge of the wheel of harvesting sugarcane machine;
Hall sensing device, it is located at the side of described sensor block, and when the wheels turn, this hall sensing device gathers the rotating speed of described wheel by described sensor block;
Electro-hydraulic proportional flow valve, it is for controlling the walking speed of the wheel of harvesting sugarcane machine; And
PLC, its input terminus is connected with described hall sensing device with described pressure transmitter respectively, output terminal is connected with described electro-hydraulic proportional flow valve, described PLC obtains the normal speed of described wheel by described hall sensing device, when described load pressure signal exceedes preset value, control described electro-hydraulic proportional flow valve and make described wheel lower than described normal speed; When described load pressure signal is lower than preset value, controls described electro-hydraulic proportional flow valve and make described wheel return to normal speed.
2. the control device of harvesting sugarcane machine feed quantity according to claim 1, it is characterised in that, described sensor block is magnet steel.
3. the control device of harvesting sugarcane machine feed quantity according to claim 1, it is characterised in that, described pressure transmitter is connected by the input terminus of wave filter with described PLC.
4. the control device of harvesting sugarcane machine feed quantity according to claim 3, it is characterised in that, described wave filter is two rank bandpass filtering circuit.
5. the control device of harvesting sugarcane machine feed quantity according to claim 1, it is characterised in that, described hall sensing device is connected with the input terminus of described PLC by shaping amplifier.
6. the control method of a harvesting sugarcane machine feed quantity, it is characterised in that, comprise the following steps:
The upper pressure sugarcane roller that pressure transmitter is installed on harvesting sugarcane machine or the ingress pressing down the oil motor of sugarcane roller are to obtain the load pressure signal of oil motor;
Hall sensing device is adopted to obtain the tach signal of described wheel according to the sensor block of the hub edge of the wheel being installed on harvesting sugarcane machine;
Utilize the walking speed of the wheel of electro-hydraulic proportional flow valve control harvesting sugarcane machine;
Adopt PLC to be obtained the normal speed of described wheel by described hall sensing device, when described load pressure signal exceedes preset value, control described electro-hydraulic proportional flow valve and make described wheel lower than described normal speed; When described load pressure signal is lower than preset value, control described electro-hydraulic proportional flow valve so that described wheel returns to normal speed.
7. the control method of harvesting sugarcane machine feed quantity according to claim 6, it is characterised in that, described sensor block is magnet steel.
8. the control method of harvesting sugarcane machine feed quantity according to claim 6, it is characterised in that, described load pressure signal is by being delivered to described PLC after filter filtering.
9. the control method of harvesting sugarcane machine feed quantity according to claim 8, it is characterised in that, described wave filter is two rank bandpass filtering circuit.
10. the control method of harvesting sugarcane machine feed quantity according to claim 6, it is characterised in that, described tach signal is delivered to described PLC by shaping amplifier.
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| CN201510997052.5A CN105612923B (en) | 2015-12-28 | 2015-12-28 | A kind of control device and method of cane harvesting machine feed quantity |
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| CN201510997052.5A CN105612923B (en) | 2015-12-28 | 2015-12-28 | A kind of control device and method of cane harvesting machine feed quantity |
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| CN105612923A true CN105612923A (en) | 2016-06-01 |
| CN105612923B CN105612923B (en) | 2018-03-06 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106612939A (en) * | 2016-12-30 | 2017-05-10 | 广西民族大学 | Sugarcane harvester and anti-clogging method thereof |
| CN110149917A (en) * | 2019-06-14 | 2019-08-23 | 中国农业大学 | A kind of concave clearance automatic regulating system based on feed quantity |
| CN111279870A (en) * | 2020-03-29 | 2020-06-16 | 青岛农业大学 | Peanut harvester clamping and conveying hydraulic driving system and control method for preventing blockage |
| CN112392608A (en) * | 2020-12-03 | 2021-02-23 | 潍柴动力股份有限公司 | Control method, device and equipment of harvesting machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110463434A (en) * | 2019-08-02 | 2019-11-19 | 山东省农业机械科学研究院 | Picker for tuber crops two-stage soil potato separator |
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| CN110149917B (en) * | 2019-06-14 | 2021-06-08 | 中国农业大学 | Automatic concave plate gap adjusting system based on feeding amount |
| CN111279870A (en) * | 2020-03-29 | 2020-06-16 | 青岛农业大学 | Peanut harvester clamping and conveying hydraulic driving system and control method for preventing blockage |
| CN112392608A (en) * | 2020-12-03 | 2021-02-23 | 潍柴动力股份有限公司 | Control method, device and equipment of harvesting machine |
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