CN106664990A - Adjusting device and adjusting method for cereal threshing cylinder concave clearance - Google Patents
Adjusting device and adjusting method for cereal threshing cylinder concave clearance Download PDFInfo
- Publication number
- CN106664990A CN106664990A CN201611253713.4A CN201611253713A CN106664990A CN 106664990 A CN106664990 A CN 106664990A CN 201611253713 A CN201611253713 A CN 201611253713A CN 106664990 A CN106664990 A CN 106664990A
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- Prior art keywords
- signal
- threshing
- stress
- concave clearance
- concave
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/18—Threshing devices
- A01F12/28—Devices for adjusting the concaves
Abstract
The invention relates to an automatic adjusting device and method for a cereal threshing cylinder concave clearance. The automatic adjusting device includes a top cover, a threshing cylinder, a concave sieve, a driving motor, a rack, a stress acquisition module, and a signal receiving and processing system. Detection and data analysis is performed on stress applied to a threshing toothed bar, a feedback signal is sent to the driving motor, and then automatic adjustment of the threshing cylinder concave clearance can be achieved. The adjusting device and adjusting method can be used for detection of stress applied to the threshing toothed bar of a threshing separating device and self-adaptive adjustment of the concave clearance while a combined harvester performs field harvesting; a detection device is low in production cost, and is easy to install and demount; the intelligent level of the detection method and result processing is high; and harvesting of various crops can be achieved by adjusting parameters of the signal receiving and processing system.
Description
Technical field
The present invention relates to a kind of grain threshing roller concave clearance self-checking device and control method, specifically be logical
Cross the stress collection to threshing tooth and produce the work of feedback signal motor with processing, be capable of achieving automatically adjusting for concave clearance.
Background technology
Installed threshing separator is one of core work part of combined harvester, determines the quality of overall performance.Tradition
Sheller unit mainly includes threshing cylinder, concave grate and top cover.When combined harvester works, crop Jing delivery chutes feeding threshing dress
Put, produce rubbing, collision with concave grate in the case where threshing cylinder hits at a high speed and realize threshing, while making approximate along concave grate and top cover
Screw.The grain taken off is separated from notch board sieve aperture, and into subsequently cleaning, a large amount of complete stalks are discharged outside machine.
During real work, feed quantity can fluctuate with the distribution density of field crops difference, and this just directly results in threshing cylinder
Load can change, and blocking stalling can be caused when serious.
From the point of view of the combine mass follow-up investigation situation of Ministry of Agriculture's tissue in 1999, the mean free error time is
8.8 hours, wherein self-propelled combine time between failures were 8.4 hours, and mounted combine is 9.7
Hour.2000 in emphasis follow-up check, when the Mean of 3 representational self-propelled combines works
Between be only 19.1 hours, the level far below external 50 ~ 80 hours, serious restriction whole nation rice combine
Development.After harvester feed blocking failure occurs, exclude and block general all very time-consuming laborious, shutdown maintenance can be caused when serious,
Directly affecting the harvest season robs farming season, also directly affects the income of machine handss, and this to original machine just in the urgent need to being improved.It is existing
In some sheller units, the harvester threshing lash adjusting device of the invention such as Zhao Guangjun（CN 203340634 U）, it being capable of pin
The cylinder-concave clearance different to different crop choices, to obtain optimal Threshing.This and traditional sheller unit, can
To adjust concave clearance manually, but in the course of the work, cylinder-concave clearance（Concave clearance）It is changeless, it is impossible to according to real-time
Service load, adjust automatically concave clearance does not just reach pre- blockage resisting yet, improves the mesh of functional reliability and work efficiency
's.
The content of the invention
The technical problem to be solved is the technical disadvantages for overcoming above-mentioned installed threshing separator, there is provided Yi Zhonglian
In the case of conjunction cropper field results feed quantity fluctuates, can realize that a kind of combined harvester for automatically adjusting concave clearance takes off
Grain segregation apparatuss；The present invention can be used for the stress mornitoring of threshing toothed bar when combined harvester field harvests, and testing equipment is manufactured into
This low, easy installation and removal, detection method and result treatment intelligence degree are high, motor driving apparatus easy installation and removal, fixed
Position high precision, response speed is fast, sensitivity is high, and trackability is good, safe and reliable, life-span length.
The technical solution used in the present invention is, a kind of grain threshing roller concave clearance adjusting means, including top cover, de-
Grain cylinder, concave grate, motor, frame, threshing tooth stress test system and signal are received and processing system；Top cover is in threshing
The top of cylinder, concave grate is in the lower section of threshing cylinder；Threshing cylinder includes the threshing toothed bar being arranged on width disk；Concave grate by
Left hinged ear, sieve nest, right hinged ear composition；Left hinged ear is hinged with one end of motor, the motor other end and machine
Frame is connected；Right hinged ear is hinged with frame；Threshing tooth stress test system is by resistance strain gage, foil gauge holding wire, stress
Acquisition module, bolt, power module, nut, Dual module mounting bracket composition；Resistance strain gage is arranged on threshing toothed bar, double
Module mounting bracket is arranged on width disk, and stress acquisition module and power module are located in Dual module mounting bracket, foil gauge letter
Number line is connected with resistance strain gage, stress acquisition module and power module, and signal is received to be adopted with processing system for receiving stress
The signal of collection module transmitting, and by feedback signal transmission to motor.
In such scheme, threshing cylinder also includes bearing block, bearing, power transmission shaft and sprocket wheel；Power transmission shaft is disposed by bearing
On bearing block, bearing block is bolted in frame, and width disk is placed on bearing block inner side and is connected with power transmission shaft by key,
Sprocket wheel is placed on the side termination of power transmission shaft.
In such scheme, the signal is received and is made up of wireless signal receiver, signal processing display with processing system,
Wireless signal receiver receives signal of the stress acquisition module by wireless signal transmission, and is transferred to signal processing display
Interior, feedback signal is transferred to motor by signal processing display by holding wire.
In such scheme, wireless signal receiver, signal processing display are respectively positioned on combined harvester and drive indoor.
In such scheme, the concave grate is that grid-type concave is sieved or punched holes type concave grate.
In such scheme, the threshing toothed bar is spike-tooth；The threshing cylinder is cut flow roller or axial-flow type drum.
Present invention also offers the method automatically adjusted using grain threshing roller concave clearance self-checking device,
Comprise the following steps：
（1）In the combined harvester course of work, signal is received and obtains stress this work departed from tooth in real time with processing system
Parameter；
（2）It is pre- that signal reception carries out abnormal data replacement, Completing Missing Values, Data Denoising etc. with processing system to Monitoring Data
Process, to eliminate random, impact of the uncertain factor to subsequent data analysis；
（3）Corresponding control signal, as input signal, will be in real time exported through the stress parameters of pretreatment and acts on driving electricity
Machine completing automatically adjusting for concave clearance so that the stress distribution on threshing tooth is in rational scope.
Further, it is by the judge process of input signal to output signal：Stress signal X is more than presetting upper limit
Value XMAX, then the negative signal of a retraction motor is produced；If stress signal X is less than presetting lower bound limit value XMIN, then produce
The positive signal of raw elongation motor；A zero-signal is otherwise produced, motor is failure to actuate.
Further, the range of accommodation of concave clearance is 10 ~ 50mm
The invention has the beneficial effects as follows：（1）It is adapted to combined harvester field under the multi-state complex environment of field there is provided one kind
The concave clearance of the stress mornitoring based on threshing toothed bar of harvest-seed extraction segregation apparatuss automatically adjusts device and method, can be used to join
Close the threshing toothed bar stress mornitoring and the self-adaptative adjustment of concave clearance of installed threshing separator when cropper field harvests；（2）
Testing equipment low cost of manufacture, easy installation and removal, detection method and result treatment intelligence degree are high, motor driving apparatus peace
Dress convenient disassembly, positioning precision is high, and response speed is fast, sensitivity is high, and trackability is good, safe and reliable, life-span length.（3）By
In field crops skewness, when feed quantity becomes big suddenly, the stress on threshing toothed bar becomes suddenly big, signal processing system control
Motor processed tunes up concave clearance, so as to prevent cylinder to block；When feed quantity is too small, the understressing on threshing toothed bar,
Signal processing system control motor turns concave clearance down, it is possible to increase the working performance of cylinder, reduces threshing and separates
Loss.The device not only increases working performance, also improves installed threshing separator functional reliability and work efficiency.
（4）Additionally, the device can also pass through the regulation of control system parameter, the results to Different Crop are realized, it is not necessary to artificially
De-regulation concave clearance, it is simple to operation, it is time saving and energy saving.
Description of the drawings
Fig. 1 is concave clearance adjusting means structural representation.
Fig. 2 is concave sieve structure schematic diagram.
Fig. 3 is threshing roller structure schematic diagram.
Fig. 4 is threshing tooth stress test system structure and schematic view of the mounting position.
Fig. 5 is reception of wireless signals and process.
Fig. 6 is signal processing monitor signal processing procedure.
In figure：1 top cover, 2 threshing cylinders, 3 concave grates, 4 motors, 5 frames, 6 stress test systems.201 bearing blocks,
202 bearings, 203 power transmission shafts, 204 width disks, 205 threshing toothed bars, 206 sprocket wheels, 301 left hinged ears, 302 sieve nests, 303 right sides are hinged
Ear, 601 resistance strain gages, 602 foil gauge holding wires, 603 stress acquisition modules, 604 bolts, 605 power modules, 606 nuts,
607 Dual module mounting brackets, 701 wireless signal receivers, 702 signal processing display, 4 motors.
Specific embodiment
A kind of grain threshing roller concave clearance self-checking device below in conjunction with the accompanying drawings to concrete model of the present invention and
Control method specific implementation process is described further.
It is as shown in figure 1, a kind of grain threshing roller concave clearance self-checking device and control method including top cover 1, de-
Grain cylinder 2, concave grate 3, motor 4, frame 5, threshing tooth stress test system 6 and signal are received and processing system 7；
As shown in Fig. 2 concave grate 3 is made up of left hinged ear 301, sieve nest 302, right hinged ear 303；Left hinged ear 301 and driving
The right-hand member of motor 4 is hinged, and right hinged ear 303 is hinged with frame 5, and the range of accommodation of concave clearance is 10 ~ 50mm.
As shown in figure 3, threshing cylinder 2 by bearing block 201, bearing 202, power transmission shaft 203, width disk 204, threshing toothed bar 205,
Sprocket wheel 206 is constituted；Power transmission shaft 203 is placed on bearing block 201 by bearing 202, and bearing block 201 is bolted on frame
On 5, width disk 204 is placed on the inner side of bearing block 201 and is connected with power transmission shaft 203 by key, and threshing toothed bar 205 is arranged on width disk 204
On, sprocket wheel 206 is placed on the side termination of power transmission shaft 203；
As shown in figure 4, threshing tooth stress test system 6 is by resistance strain gage 601, foil gauge holding wire 602, stress acquisition module
603rd, bolt 604, power module 605, nut 606, Dual module mounting bracket 607 are constituted；Resistance strain gage 601 is arranged on threshing
On ratch 205, Dual module mounting bracket 607 is arranged on width disk 204, and stress acquisition module 603 and power module 605 are positioned at double
In module mounting bracket 607, foil gauge holding wire 602 and resistance strain gage 601, stress acquisition module 603 and power module 605
It is connected, the stress signal frequency acquisition of stress acquisition module 603 is 0.5Hz ~ 10Hz.
As shown in figure 5, wireless signal receiver 701 receives stress acquisition module 603 by the signal of wireless signal transmission,
And be transferred in signal processing display 702, signal processing display produces feedback signal, and by holding wire driving electricity is transferred to
Machine 4.
As shown in fig. 6, the process of the generation feedback signal for signal processing display interior, if force signal X is more than default
Fixed upper bound limit value XMAX, then the negative signal of a retraction motor is produced；If force signal X is less than presetting lower bound limit value
XMIN, then the positive signal of an elongation motor is produced；A zero-signal is otherwise produced, motor is failure to actuate, so as to realize
Concave clearance automatically adjusts.
A kind of grain threshing roller concave clearance self-checking device and control method specific implementation process of the model be,
Dual module mounting bracket is fastened by bolts on width disk, make power module and stress acquisition module together with threshing cylinder with
Identical angular velocity is rotated；Foil gauge lead is connected with the binding post on stress acquisition module again, in order to avoid trembling for line
The dynamic signal errors that may be brought and accident, foil gauge holding wire is arranged along threshing toothed bar and width disk, and is fixed with tied silk；By
Stress acquisition module gathers the Dynamic Signal of stress, and Dynamic Signal is transferred to into wireless signal receiver by wireless signal,
And by the signal transmission for receiving to signal processing display, the collection of complete paired data, process, show and produce feedback letter
Number；Feedback signal is transferred to motor by holding wire, and motor drives concave grate motion to change concave clearance.
A kind of grain threshing roller concave clearance self-checking device of the model and control method can be used for combining
The threshing toothed bar stress mornitoring and the self-adaptative adjustment of concave clearance of installed threshing separator, testing equipment system when machine field harvests
Make low cost, easy installation and removal, detection method and result treatment intelligence degree high, motor driving apparatus installing/dismounting side
Just, drive signal is processed quick and precisely.Automatically adjusting for concave clearance can realize concave clearance with the change of feed quantity
Change, can reduce the probability of threshing cylinder blocking, improve installed threshing separator functional reliability and work efficiency.This
Outward, the device can also pass through the regulation of control system parameter, realize the results to Different Crop, it is not necessary to artificially de-regulation
Concave clearance, it is simple to operation.
Claims (9)
1. a kind of grain threshing roller concave clearance adjusting means, it is characterised in that including top cover（1）, threshing cylinder（2）, it is recessed
Screen（3）, motor（4）, frame（5）, threshing tooth stress test system（6）Receive with signal and processing system（7）；Top cover
（1）In threshing cylinder（2）Top, concave grate（3）In threshing cylinder（2）Lower section；Threshing cylinder（2）Including installed in width disk
（204）On threshing toothed bar（205）；Concave grate（3）By left hinged ear（301）, sieve nest（302）, right hinged ear（303）Composition；
Left hinged ear（301）With motor（4）One end be hinged, motor（4）The other end and frame（5）It is connected；The right side is hinged
Ear（303）With frame（5）It is hinged；Threshing tooth stress test system（6）By resistance strain gage（601）, foil gauge holding wire
（602）, stress acquisition module（603）, bolt（604）, power module（605）, nut（606）, Dual module mounting bracket（607）
Composition；Resistance strain gage（601）Installed in threshing toothed bar（205）On, Dual module mounting bracket（607）Installed in width disk（204）
On, stress acquisition module（603）And power module（605）Positioned at Dual module mounting bracket（607）It is interior, foil gauge holding wire
（602）With resistance strain gage（601）, stress acquisition module（603）And power module（605）It is connected, signal is received and processing system
System（7）For receiving stress acquisition module（603）The signal of transmitting, and by feedback signal transmission to motor（4）.
2. a kind of grain threshing roller concave clearance adjusting means according to claim 1, it is characterised in that threshing cylinder
（2）Also include bearing block（201）, bearing（202）, power transmission shaft（203）And sprocket wheel（206）；Power transmission shaft（203）By bearing
（202）It is placed in bearing block（201）On, bearing block（201）It is bolted on frame（5）On, width disk（204）It is placed on axle
Bearing（201）Inner side is by key and power transmission shaft（203）Connection, sprocket wheel（206）It is placed on power transmission shaft（203）Side termination.
3. a kind of grain threshing roller concave clearance adjusting means according to claim 1 and 2, it is characterised in that described
Signal is received and processing system（7）By wireless signal receiver（701）, signal processing display（702）Composition, wireless signal connects
Receive device（701）Receive stress acquisition module（603）By the signal of wireless signal transmission, and it is transferred to signal processing display
（702）It is interior, signal processing display（702）Feedback signal is transferred to into motor by holding wire（4）.
4. a kind of grain threshing roller concave clearance adjusting means according to claim 3, it is characterised in that wireless signal
Receptor（701）, signal processing display（702）It is respectively positioned on combined harvester and drives indoor.
5. a kind of grain threshing roller concave clearance adjusting means according to claim 1 and 2, it is characterised in that described
Concave grate（3）For grid-type concave sieve or punched holes type concave grate.
6. a kind of grain threshing roller concave clearance adjusting means according to claim 1 and 2, it is characterised in that described
Threshing toothed bar is spike-tooth；The threshing cylinder is cut flow roller or axial-flow type drum.
7. the method for being automatically adjusted using grain threshing roller concave clearance adjusting means, it is characterised in that including following
Step：
（1）In the combined harvester course of work, signal is received and obtains stress this work departed from tooth in real time with processing system
Parameter；
（2）It is pre- that signal reception carries out abnormal data replacement, Completing Missing Values, Data Denoising etc. with processing system to Monitoring Data
Process, to eliminate random, impact of the uncertain factor to subsequent data analysis；
（3）Corresponding control signal, as input signal, will be in real time exported through the stress parameters of pretreatment and acts on driving electricity
Machine completing automatically adjusting for concave clearance so that the stress distribution on threshing tooth is in rational scope.
8. the method that utilization grain threshing roller concave clearance adjusting means according to claim 7 automatically adjusts,
Characterized in that, being by the judge process of input signal to output signal：Stress signal X is more than presetting upper bound limit value XMAX,
Then produce the negative signal of a retraction motor；If stress signal X is less than presetting lower bound limit value XMIN, then one is produced
The positive signal of elongation motor；A zero-signal is otherwise produced, motor is failure to actuate.
9. the method that the utilization grain threshing roller concave clearance adjusting means according to claim automatically adjusts, its
It is characterised by, the range of accommodation of concave clearance is 10 ~ 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611253713.4A CN106664990A (en) | 2016-12-30 | 2016-12-30 | Adjusting device and adjusting method for cereal threshing cylinder concave clearance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611253713.4A CN106664990A (en) | 2016-12-30 | 2016-12-30 | Adjusting device and adjusting method for cereal threshing cylinder concave clearance |
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| CN106664990A true CN106664990A (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611253713.4A Pending CN106664990A (en) | 2016-12-30 | 2016-12-30 | Adjusting device and adjusting method for cereal threshing cylinder concave clearance |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107172973A (en) * | 2017-06-05 | 2017-09-19 | 济南大学 | A kind of sheller unit of adjustable cylinder-concave clearance |
| CN108496581A (en) * | 2018-01-19 | 2018-09-07 | 江苏大学 | A kind of multiple-roll combined harvester concave clearance automatically adjusts installed threshing separator and adjusting method |
| WO2019029113A1 (en) * | 2017-08-07 | 2019-02-14 | 中联重机股份有限公司 | Grain combine harvester and threshing and separating apparatus thereof |
| CN109379995A (en) * | 2017-08-09 | 2019-02-26 | 中国科学院沈阳自动化研究所 | Based on worm geared Combined harvester concave plate gap self-checking device |
| CN109566111A (en) * | 2019-01-21 | 2019-04-05 | 山东理工大学 | Threshing and cleaning testing stand |
| CN109729847A (en) * | 2019-01-31 | 2019-05-10 | 河南科技大学 | A kind of gradable drum threshing system for adjusting cylinder-concave clearance |
| CN109906778A (en) * | 2019-03-18 | 2019-06-21 | 江苏大学 | A kind of combination of dual-sided board clamps the adjustable sheller unit of cylinder-concave clearance and combined harvester |
| CN110337895A (en) * | 2019-07-31 | 2019-10-18 | 河南科技大学 | A kind of concave clearance self-adapting adjustment type thresing machine based on the detection of threshing power |
| CN110530560A (en) * | 2019-10-09 | 2019-12-03 | 河南科技大学 | A kind of threshing force checking device |
| CN111226610A (en) * | 2020-02-27 | 2020-06-05 | 江苏大学 | Threshing cylinder with adjustable threshing diameter, adjusting method and combine harvester |
| CN111903341A (en) * | 2020-08-13 | 2020-11-10 | 湖南农业大学 | Threshing cylinder and method for adjusting rotating speed during threshing by adopting same |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107172973A (en) * | 2017-06-05 | 2017-09-19 | 济南大学 | A kind of sheller unit of adjustable cylinder-concave clearance |
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| CN109379995A (en) * | 2017-08-09 | 2019-02-26 | 中国科学院沈阳自动化研究所 | Based on worm geared Combined harvester concave plate gap self-checking device |
| CN108496581A (en) * | 2018-01-19 | 2018-09-07 | 江苏大学 | A kind of multiple-roll combined harvester concave clearance automatically adjusts installed threshing separator and adjusting method |
| CN109566111A (en) * | 2019-01-21 | 2019-04-05 | 山东理工大学 | Threshing and cleaning testing stand |
| CN109729847A (en) * | 2019-01-31 | 2019-05-10 | 河南科技大学 | A kind of gradable drum threshing system for adjusting cylinder-concave clearance |
| CN109906778A (en) * | 2019-03-18 | 2019-06-21 | 江苏大学 | A kind of combination of dual-sided board clamps the adjustable sheller unit of cylinder-concave clearance and combined harvester |
| CN109906778B (en) * | 2019-03-18 | 2023-09-26 | 江苏大学 | Threshing device with adjustable threshing gap clamped by double-side-plate combination and combine harvester |
| CN110337895A (en) * | 2019-07-31 | 2019-10-18 | 河南科技大学 | A kind of concave clearance self-adapting adjustment type thresing machine based on the detection of threshing power |
| CN110337895B (en) * | 2019-07-31 | 2020-08-11 | 河南科技大学 | Concave plate gap self-adaptive adjustment type threshing machine based on threshing force detection |
| CN110530560A (en) * | 2019-10-09 | 2019-12-03 | 河南科技大学 | A kind of threshing force checking device |
| CN111226610A (en) * | 2020-02-27 | 2020-06-05 | 江苏大学 | Threshing cylinder with adjustable threshing diameter, adjusting method and combine harvester |
| CN111226610B (en) * | 2020-02-27 | 2023-10-10 | 江苏大学 | Threshing cylinder with adjustable threshing diameter, adjusting method and combine harvester |
| CN111903341A (en) * | 2020-08-13 | 2020-11-10 | 湖南农业大学 | Threshing cylinder and method for adjusting rotating speed during threshing by adopting same |
| CN111903341B (en) * | 2020-08-13 | 2022-04-15 | 湖南农业大学 | Threshing cylinder and method for adjusting rotating speed during threshing by adopting same |
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