CN106441971A - Harvester threshing performance detecting device and detecting method - Google Patents
Harvester threshing performance detecting device and detecting method Download PDFInfo
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- CN106441971A CN106441971A CN201610932829.4A CN201610932829A CN106441971A CN 106441971 A CN106441971 A CN 106441971A CN 201610932829 A CN201610932829 A CN 201610932829A CN 106441971 A CN106441971 A CN 106441971A
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- threshing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- General Physics & Mathematics (AREA)
- Threshing Machine Elements (AREA)
Abstract
The invention provides a harvester threshing performance detecting device and a harvester threshing performance detecting method. The harvester threshing performance detecting device comprises a feeding platform, a mounting platform, a detecting system and a control system; driving motors which are used for providing power for each movement mechanism are arranged on the mounting platform; supporting mechanisms which are used for mounting a harvesting table assembly, a threshing cleaning assembly and the driving motors are arranged on the mounting platform; the horizontal positions and the heights of the supporting mechanisms are adjustable; the detecting system comprises a high-speed camera and parameter detecting elements; the control system comprises a control cabinet and a computer; each parameter detecting element and each driving motor are connected with the control system. According to the harvester threshing performance detecting device, a modular mechanical structure is adopted; various working parts are convenient to adjust and combine. The data, such as the rotating speed, the torque and the power, of a threshing device can be acquired and processed in real time; the harvester threshing performance detecting device is high in universality, is not limited by a machine model, is easy to adjust, and is higher in test operability compared with a conventional test device.
Description
Technical field
The invention belongs to technical field of agricultural machinery, more particularly to a kind of harvester threshing device for detecting performance and detection side
Method.
Background technology
Baby combine prototype test parameter is difficult direct detection in field, and data acquisition is difficult, and data precision reaches
Less than requiring, variable element cannot real-time continuous adjust, harvest machinery field test climate, field conditions and machine itself are joined
The circumscribed impact of number adjustable range so that this test method has a lot of restrictions, also so that some indexs cannot be real-time
Measurement；Baby combine prototype test is big by seasonal effect, only carries out in the harvest season, and therefore the test period is long；Little
The prototype test of type united reaper repeatedly need to be repeated, and costly, time-consuming.The test platform that developed in the past is all directed to a certain
Specific model, limitation is big, does not possess versatility.
Content of the invention
In view of above-mentioned, it is an object of the invention to provide a kind of harvester threshing device for detecting performance, versatility is good, does not receive
Type is limited, no matter transverse-axis-flow, longitudinal axial flow, cut axial-flow type harvester and all can be detected on this test platform.
For achieving the above object and other related purposes, technical scheme is as follows：
A kind of harvester threshing device for detecting performance, including feeding table, mounting platform, detecting system and control system, institute
The motor for arranging on mounting platform that promising each motion provides power is stated, is provided with for installing on the mounting platform
The supporting mechanism of ceding of Taiwan assembly, threshing and cleaning assembly and motor, the horizontal level of the supporting mechanism and height adjustable,
The detecting system includes high-speed camera and parameter detecting element, and the control system includes switch board and computer, each ginseng
Number detecting element and motor are all connected with control system.
Using said structure, multiple installation sites are provided with mounting platform, can be according to the cloth of harvester to be detected
Structure is put, installation site is adjusted, to adapt to the test of multiple harvesters.
As preferred：The mounting platform is provided with multiple installation stations, the ceding of Taiwan assembly, threshing and cleaning assembly and each
Motor is arranged on corresponding installation station by different bracing frames respectively.The motor is included for driving feeding
Platform, the ceding of Taiwan and intermediate conveying device, sheller unit, pneumatic separation device, cleaning plant, the motor of screw of putting out cereal is vibrated, each
Motor is arranged on correspondence position by bracing frame.
As preferred：Multiple T-slot are offered on the mounting platform, and support frame as described above is formed not in T-slot
Same installation station, bracing frame upper end is provided with supporting table.
As preferred：On the mounting platform, assembly is cleaned by detected harvester threshing and put out cereal and straw outlet position
It is provided with corn collecting box and straw grass collecting bag.
As preferred：Shooting window is offered in the top of threshing and cleaning assembly casing and side, shooting window is by thoroughly
Isotropic disk is sealed, and two shooting windows are corresponded to and are provided with for recording corn kinestate and oscillating screen corn in threshing cylinder
The high-speed camera of kinestate, the high-speed camera is connected to computer.
The motor is included for driving feeding table, the ceding of Taiwan and intermediate conveying device, sheller unit, blower fan, vibration
Cleaning plant, the motor of screw of putting out cereal, each motor is arranged on each mechanism's input shaft correspondence position by bracing frame respectively.
As preferred：The parameter detecting element includes torque speed sensor and air velocity transducer, the moment of torsion rotating speed
Sensor is arranged on sheller unit, blower fan, vibrates on the main shaft of cleaning plant, and the air velocity transducer is arranged on oscillating screen
Before, during and after and harvester straw outlet at；The torque speed sensor and air velocity transducer are connected with control system, institute
State control system and be connected to computer.
Present invention simultaneously provides a kind of harvester threshing method for testing performance, using above-mentioned detection means, specially：Will
The ceding of Taiwan assembly of harvester to be detected and threshing and cleaning assembly are pulled down, and are fixed using the bracing frame of the differing heights of pre-production
On mounting platform, by T-slot, the position of ceding of Taiwan assembly and threshing and cleaning assembly is adjusted so as to harvester cloth to be detected
Put mode identical；Cloth centrally-mounted driving, adjust motor bracing frame position, and by each motor respectively with the ceding of Taiwan and in
Between conveyer device, sheller unit, blower fan, vibrate cleaning plant, screw of putting out cereal main shaft connection；Sheller unit, blower fan,
On the main shaft of vibration cleaning plant, torque speed sensor is installed, before, during and after oscillating screen and harvester straw outlet
Air velocity transducer is installed at place, in the casing uplifting window of threshing and cleaning assembly, and installs high-speed camera；Set feed quantity and each drive
The rotating speed of galvanic electricity machine, opening feeding table and each motor carries out harvesting detection, by each sensor Real-time Collection motor
Rotating speed, moment of torsion and power parameter feed back to computer, form surveying record.
As preferred：The straw grass collecting bag of pre-production and corn collecting box are separately mounted to the correspondence position of frame,
After the completion of detecting every time, respectively postsearch screening discriminating is carried out to Caulis et Folium Oryzae and corn, and actual mass is measured, calculate entrainment and damage
Mistake rate and percentage of impurity；Threshing cylinder in corn kinestate and vibration are recorded respectively by two high-speed cameras in detection process
The kinestate of sieve compass screen surface corn, and by image feedback to computer, whether unobstructed so as to observation operation, analyze threshing efficiency.
As preferred：According to testing result, the rotating speed of feeding table and each motor is adjusted by control system, continuously
The feed quantity of detachment system is adjusted, the interpretation of result according to repeated detection goes out the optimal feed quantity of harvester.
The invention has the beneficial effects as follows：The present invention adopts modular mechanical construction, and each workpiece adjustment, combination are convenient.
Detecting system can in real time to sheller unit rotating speed, moment of torsion, the data such as power be acquired processing, and can be to threshing after
Corn and Caulis et Folium Oryzae carry out quantitative analyses, draw corn entrainment loss rate and percentage of impurity.And then it is directed to a set threshing system
System, can not only detect whether its running parameter can reach given requirements, and can take the continuously adjustable side of feed quantity
Formula, for analyzing the optimal feed quantity of this threshing system.Carry for the design of baby combine machine sheller unit from now on
For reliable data supporting.Versatility is good, is not limited by type, no matter transverse-axis-flow, longitudinal axial flow, cutting axial-flow type harvester all can be
Detected on this test platform.Can easily be accommodated, compared to traditional experiment device, with preferably test operability.
Description of the drawings
Fig. 1 is the structural representation of use state of the present invention；
Fig. 2 is the top view of the present invention；
Fig. 3 is the scheme of installation of motor in the present invention.
Piece mark explanation
1 feeding table
11 support bases
12 conveyer belts
13 first motors
2 mounting platforms
21 T-slot
3 bracing frames
31 supporting tables
32 sensor holders
33 shaft couplings
34 fixed seats
35 gripper shoes
36 motor cabinets
4 threshing and cleaning assemblies
41 straw grass collecting bag
42 corn collecting boxs
43 shooting windows
51 second motors
52 the 3rd motors
53 the 5th motors
54 the 6th motors
55 the 4th motors
56 high-speed cameras
57 switch boards
58 computers
62 sheller units
63 vibration cleaning plants
64 pneumatic separation devices
Specific embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art can be by this specification
Disclosed content understands other advantages of the present invention and effect easily.The present invention can also pass through in addition different concrete realities
The mode of applying is carried out or applies, and the every details in this specification can also be based on different viewpoints and application, without departing from
Various modifications and changes are carried out under the spirit of the present invention.
Embodiment
As depicted in figs. 1 and 2, a kind of harvester threshing device for detecting performance, including feeding table 1, mounting platform 2, detection
System and control system, the supporting mechanism being provided with mounting platform 2 for installing ceding of Taiwan assembly and threshing and cleaning assembly 4, with
And the motor of power is provided for each motion, mounting platform 2 is provided with multiple installation stations, and supporting mechanism can be according to treating
The arrangement of detection harvester, installed in specified location, supporting mechanism horizontal level and height adjustable, can adapt to multiple receipts
The installation of cutting mill, the detecting system includes the detecting elements such as speed probe, torque sensor, the detecting element and each driving
Motor is all connected with control system, to collect the rotating speed of detection information and control motor.
Further, on mounting platform 2, multiple T-slot 21 or mounting hole site are offered, supporting mechanism is bracing frame 3,
Bracing frame 3 includes connect base, support beam and the supporting table 31 positioned at upper end, connect base and supporting table 31 and bracing frame 3 it
Between be provided with reinforcing plate, bracing frame 3 is in the T-slot 21, and ceding of Taiwan assembly, threshing and cleaning assembly 4 and each motor divide
Corresponding installation site is not arranged on by different bracing frames 3, the connect base of 3 lower end of bracing frame is by being arranged on T-slot
Bolt and briquetting in 21 is fixed, and the ceding of Taiwan assembly, threshing and cleaning assembly 4 and each motor are arranged in supporting table 31,
Fixed by bolt or other hold-down mechanisms.
Further, threshing and cleaning assembly 4 includes sheller unit, blower fan, vibrates cleaning plant and screw of putting out cereal, and takes off
Grain is cleaned 4 side of assembly and is provided with straw grass collecting bag 41, and 4 downside of threshing and cleaning assembly is provided with corn collecting box 42, and threshing is clear
Select above the casing of assembly 4 and side offers shooting window 43, shooting window 43 is sealed by clear glass steel plate, and two are taken the photograph
As window 43 corresponds to the height being provided with for recording corn kinestate and oscillating screen corn kinestate in threshing cylinder
Fast video camera 56, the high-speed camera 56 is connected to computer.By the record of two high-speed cameras 56, each pass key mapping is analyzed
Put whether operation is unobstructed, whether threshing efficiency has room for promotion.
Using said structure, by T-slot 21 and prefabricated bracing frame 3, can be adjusted according to the structure of harvester to be detected
Whole threshing and cleaning assembly 4 and the installation site of ceding of Taiwan assembly, change bracing frame 3 and realize altitude mixture control, change bracing frame 3 T-shaped
The installation site of groove 21 realizes horizontal adjustment；While each motor can also pass through bracing frame 3 carries out horizontal direction and vertical
The position adjustments in direction, it is thus possible to adapt to the harvester of different type of machines, versatility is preferable.
Wherein pre-production combined support frame 3, can be combined by some branch's supports 3 and obtain arbitrary height, feeding table 1,
Each mechanism supports platform 31, straw grass collecting bag 41, corn collecting box 42 are all fixed on T-slot 21 using bracing frame 3 on request and install
On platform 2.
Specifically, motor is included for driving the feeding table 1, ceding of Taiwan and intermediate conveying device 61, sheller unit 62, wind
Screening device 64, vibration cleaning plant 63, the first motor 13 of screw of putting out cereal, the second motor 51, the 52, the 4th electricity of the 3rd motor
Machine 55, the 5th motor 53 and the 6th motor 54, each motor is arranged on correspondence position, the main shaft with each device by bracing frame 3
Connected by shaft coupling etc., each device is operated alone by corresponding frequency conversion motor.
Wherein, sheller unit 62, pneumatic separation device 64, vibration cleaning plant 63 main shaft on be provided with moment of torsion revolution speed sensing
Device 7, is easy to its working speed of Real-time Collection, moment of torsion and power parameter；It is also equipped with for measuring selecting crude drugs with winnower in threshing and cleaning assembly 4
Multiple air velocity transducers of 64 wind speed of device, air velocity transducer is supported by support, and air velocity transducer is installed in vibration cleaning plant
Before, during and after 63 oscillating screens and at harvester straw outlet；Torque speed sensor and air velocity transducer and control system
Or switch board 57 connects, control system is connected to computer 58.
Feeding table 1 includes bottom support base 11 and conveyer belt 12, and the first motor 13 passes through belt, belt wheel drive conveyer belt
12 motions, transporting velocity can be adjusted by the first motor 13, meet the continuous adjustability of conveying material, can thus be passed through
Material being evenly arranged on conveyer belt 12 to simulate feeding procedure, such as the 15kg for weighing in advance test Oryza sativa L. is evenly arranged in 15m
On the conveyer belt of length, Oryza sativa L. is tested by one clump one clump be interposed on feeding table, the ceding of Taiwan is worked by real work situation, is conveyed
Band is run with 1m/s speed, and the threshing cylinder feed quantity that just can simulate 1kg/s (but in real process, is can also leave under cutter
Certain altitude cut stubble, the test Oryza sativa L. that therefore weighs in advance is greater than 15kg, just can guarantee that the feed quantity of 1kg/s).
In this example, supporting mechanism is made up of the gripper shoe 35 on mounting platform 2 and bracing frame 3, and the ceding of Taiwan and centre are defeated
Device front and rear part is sent to be supported by gripper shoe 35 and bracing frame 3 respectively.
Fig. 3 show the scheme of installation of corresponding 3rd motor 52 of sheller unit 62 and torque speed sensor 7, and the 3rd
Motor 52 and torque speed sensor 7 are arranged on the supporting table 31 of 3 upper end of bracing frame respectively by motor cabinet 36, sensor holder 32
On, 52 output shaft of the 3rd motor is connected with the main shaft 58 of sheller unit 62 by shaft coupling 33 after torque speed sensor 7,
The fixed seat 34 being provided with support platform 31 for supporting 62 main shaft of sheller unit.Pneumatic separation device 64, the master of vibration cleaning plant 63
Axle is similar with sheller unit 62 with the mounting structure of motor, and here is no longer illustrated one by one.
Invention also provides a kind of harvester threshing method for testing performance, using above-mentioned detection means, specially：
The ceding of Taiwan assembly of harvester to be detected and threshing and cleaning assembly are pulled down, using the bracing frame 3 of the differing heights of pre-production
It is fixed on mounting platform 2, by T-slot, adjusts the position of ceding of Taiwan assembly and threshing and cleaning assembly 4 so as to receipts to be detected
Cutting mill arrangement is identical；5 motors are installed by bracing frame 3, the position of bracing frame 3 is adjusted, divides each motor
Not with the ceding of Taiwan and intermediate conveying device, sheller unit 62, blower fan 64, vibration cleaning plant 63, five part of screw of putting out cereal
Position corresponds to, and each motor is cleaned dress with the ceding of Taiwan and intermediate conveying device, sheller unit 62, blower fan 64, vibration respectively
Put the main shaft connection of 63, screw of putting out cereal；Install on sheller unit 62, blower fan 64, the main shaft of vibration cleaning plant 63 and turn round
Square speed probe, installs air velocity transducer before, during and after oscillating screen and at harvester straw outlet, clear in threshing
Select above the casing of assembly and side opens a window, and high-speed camera is installed；The rotating speed of feed quantity and each motor is set, is opened
Feeding table and each motor carry out harvesting detection, by the rotating speed of each sensor Real-time Collection motor, moment of torsion and power
Parameter simultaneously feeds back to computer, forms surveying record.After being measured each time, the result of last time is can refer to, set next
The feed quantity of secondary detection and rotating speed, change a measurement parameter or multiple measurement parameters, carry out repeated detection.
The straw grass collecting bag 41 of pre-production and corn collecting box 42 are separately mounted to the correspondence position of frame, were detected
Cheng Zhong, the Oryza sativa L. on conveyer belt is equably entered installed threshing separator by the ceding of Taiwan and conveyer device carries out threshing, and stalk is from tail
Portion's straw outlet is discharged, and is entered in the straw grass collecting bag for arranging, and abjection mixture is entered in corn collecting box 42 by concave grate.Per
After the completion of secondary detection, respectively postsearch screening discriminating is carried out to Caulis et Folium Oryzae and corn, and electronic scale measures actual mass, calculates
Entrainment loss rate and percentage of impurity；Also, corn in threshing cylinder is recorded respectively by two high-speed cameras 56 in detection process
Kinestate and the kinestate of oscillating screen corn, and by image feedback to computer, it is whether unobstructed so as to observation operation,
Whether analysis threshing efficiency has room for promotion.
With reference to front testing result several times, the rotating speed of feeding table 1 and each motor is adjusted by control system, continuously
The feed quantity of detachment system is adjusted, the interpretation of result according to repeated detection goes out the optimal feed quantity of harvester.
Wherein, detecting system adopts dynamic torque sensor, coordinates torque power tester, by RS232 interface and meter
Calculation machine is communicated, the moment of torsion of collection torque power tester, rotating speed, power signal, carries out associative operation.Computer testing software can
At same interface, three kinds of parameters in test process are shown simultaneously in the way of with curve, and with mouse tracking work(
Can, i.e., mouse pointer is placed on certain point of curve, is shown automatically corresponding measured value；And a form text can be generated
Part, the moment of torsion that this is measured, rotating speed, three projects of power maximum respectively, minima, mean value calculation is out.Form
File format be Excel, storage numbering with production code member as filename.
The present invention adopts modular mechanical construction, and each workpiece adjustment, combination are convenient.Detecting system can be in real time to de-
The data such as the rotating speed of grain device 62, moment of torsion, power are acquired processing, and can the corn after threshing and Caulis et Folium Oryzae be carried out determining
Amount analysis, draws corn entrainment loss rate and percentage of impurity.And then a set threshing system is directed to, can not only detect its work
Make whether parameter can reach given requirements, and the continuously adjustable mode of feed quantity can be taken, take off for analyzing this
The optimal feed quantity of grain system.Reliable data supporting is provided for the design of baby combine machine sheller unit 62 from now on.
Versatility is good, is not limited by type, no matter transverse-axis-flow, longitudinal axial flow, cut axial-flow type harvester all can here test flat
Detected on platform.Can easily be accommodated, compared to traditional experiment device, with preferably test operability.
Above-described embodiment only principle of the illustrative present invention and its effect, not for the restriction present invention.Any ripe
The personage for knowing this technology all can carry out modifications and changes without prejudice under the spirit and the scope of the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete with institute under technological thought without departing from disclosed spirit such as
All equivalent modifications for becoming or change, must be covered by the claim of the present invention.
Claims (10)
1. a kind of harvester threshing device for detecting performance, it is characterised in that：Including feeding table, mounting platform, detecting system and control
System processed, arranges the motor that promising each motion provides power, arranges on the mounting platform on the mounting platform
The supporting mechanism having for installing ceding of Taiwan assembly, threshing and cleaning assembly and motor, the horizontal level of the supporting mechanism
And height adjustable, the detecting system includes high-speed camera and parameter detecting element, the control system include switch board and
Computer, each parameter detecting element and motor are all connected with control system.
2. a kind of harvester threshing device for detecting performance according to claim 1, it is characterised in that：On the mounting platform
Multiple installation stations are provided with, the ceding of Taiwan assembly, threshing and cleaning assembly and each motor are pacified by different bracing frames respectively
It is mounted in corresponding installation station.
3. a kind of harvester threshing device for detecting performance according to claim 2, it is characterised in that：On the mounting platform
Multiple T-slot are offered, support frame as described above forms different installation stations in T-slot, bracing frame upper end is provided with props up
Support platform.
4. a kind of harvester threshing device for detecting performance that is stated according to claim 2, it is characterised in that：In the mounting platform
On, by detected harvester threshing clean assembly put out cereal and straw outlet position be provided with corn collecting box and straw grass collecting bag.
5. a kind of harvester threshing device for detecting performance that is stated according to claim 1, it is characterised in that：In threshing and cleaning assembly case
The top of body and side offer shooting window, and shooting window is sealed by lamella lucida, and two shooting windows are corresponded to and are provided with use
In the high-speed camera for recording corn kinestate and oscillating screen corn kinestate in threshing cylinder, the high-speed camera
It is connected to computer.
6. a kind of harvester threshing device for detecting performance that is stated according to claim 1, it is characterised in that：The motor includes
For driving feeding table, the ceding of Taiwan and intermediate conveying device, sheller unit, blower fan, vibrating the electricity of cleaning plant, screw of putting out cereal
Machine, each motor is arranged on each mechanism's input shaft correspondence position by bracing frame respectively.
7. a kind of harvester threshing device for detecting performance that is stated according to claim 6, it is characterised in that：The parameter detecting element
Including torque speed sensor and air velocity transducer, the torque speed sensor is arranged on sheller unit, blower fan, vibration and cleans
On the main shaft of device, the air velocity transducer is before, during and after oscillating screen and at harvester straw outlet；Described
Torque speed sensor and air velocity transducer are connected with control system, and the control system is connected to computer.
8. a kind of harvester threshing method for testing performance, using the detection means described in claim 1-7 any one, its feature
It is：The ceding of Taiwan assembly of harvester to be detected and threshing and cleaning assembly are pulled down, using pre-production differing heights
Support is fixed on mounting platform, by T-slot, adjusts the position of ceding of Taiwan assembly and threshing and cleaning assembly so as to be detected
Harvester arrangement is identical；Cloth centrally-mounted driving, adjust motor bracing frame position, and by each motor respectively with
The ceding of Taiwan and intermediate conveying device, sheller unit, blower fan, vibrate cleaning plant, screw of putting out cereal main shaft connection；Fill in threshing
Put, blower fan, vibration cleaning plant main shaft on install torque speed sensor, before, during and after oscillating screen and harvesting
At machine straw outlet, air velocity transducer is installed, in the casing uplifting window of threshing and cleaning assembly, and high-speed camera is installed；Set feeding
Amount and the rotating speed of each motor, opening feeding table and each motor carries out harvesting detection, by each sensor Real-time Collection
The rotating speed of motor, moment of torsion and power parameter simultaneously feed back to computer, form surveying record.
9. a kind of harvester threshing method for testing performance that is stated according to claim 8, it is characterised in that：Straw grass by pre-production
Collecting bag and corn collecting box are separately mounted to the correspondence position of threshing and cleaning assembly, after the completion of detecting every time, respectively to Caulis et Folium Oryzae
Postsearch screening discriminating is carried out with corn, and actual mass is measured, calculate entrainment loss rate and percentage of impurity；Lead in detection process
The kinestate that two high-speed cameras record corn kinestate and oscillating screen corn in threshing cylinder respectively is crossed, and will
Whether image feedback is to computer, unobstructed so as to observation operation, analyzes threshing efficiency.
10. a kind of harvester threshing method for testing performance according to claim 8 or claim 9, it is characterised in that：According to detection knot
Really, the rotating speed of feeding table and each motor is adjusted by control system, continuously adjusts the feed quantity of detachment system, according to many
The interpretation of result of secondary detection goes out the optimal feed quantity of harvester.
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| CN201610932829.4A CN106441971A (en) | 2016-10-31 | 2016-10-31 | Harvester threshing performance detecting device and detecting method |
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| CN201610932829.4A CN106441971A (en) | 2016-10-31 | 2016-10-31 | Harvester threshing performance detecting device and detecting method |
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| CN109100167A (en) * | 2018-09-04 | 2018-12-28 | 四川省农业机械研究设计院 | The Testing Platform of ridge culture crop harvester |
| CN113483824A (en) * | 2021-07-05 | 2021-10-08 | 四川省农业机械研究设计院 | Performance test platform for cleaning device of grain crop harvester |
| CN113661827A (en) * | 2021-08-16 | 2021-11-19 | 江苏大学 | Lodging detection header self-adaption device of laser sensor and control method |
| CN115362833A (en) * | 2022-08-24 | 2022-11-22 | 吉林大学 | Novel multi-functional cereal threshing test bench |
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| CN113661827A (en) * | 2021-08-16 | 2021-11-19 | 江苏大学 | Lodging detection header self-adaption device of laser sensor and control method |
| CN113661827B (en) * | 2021-08-16 | 2022-07-22 | 江苏大学 | Lodging detection header self-adaption device of laser sensor and control method |
| CN115362833A (en) * | 2022-08-24 | 2022-11-22 | 吉林大学 | Novel multi-functional cereal threshing test bench |
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