CN105424247A - Power detection device and method of harvester - Google Patents
Power detection device and method of harvester Download PDFInfo
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- CN105424247A CN105424247A CN201511022627.8A CN201511022627A CN105424247A CN 105424247 A CN105424247 A CN 105424247A CN 201511022627 A CN201511022627 A CN 201511022627A CN 105424247 A CN105424247 A CN 105424247A
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- power
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- test
- harvester
- detection device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/24—Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity
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- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention provides a power detection device and method of a harvester and belongs to the combine harvester technical field. The power detection device of the harvester comprises test benches, rotary shaft assemblies, power assemblies and detection systems; the test benches are arranged at two sides of a detection shaft of equipment to be detected; the two test benches are both provided with one rotary shaft assembly; two ends of the detection shaft are respectively connected with one end of a corresponding rotary shaft assembly; the power assemblies are installed on the test benches and are connected with the other ends of the rotary shaft assemblies; each detection system comprises a rotation speed sensor and a torque sensor which are installed on a corresponding rotary shaft assembly, and a processors installed on a corresponding test bench, wherein the rotation speed sensor comprises a photoelectric switch and a gear wheel, wherein the gear wheel is provided with 60 cutting teeth, and the photoelectric switch detects the gear wheel and transmits generated pulse signals to the processor; and the torque sensors transmits detection data to the processor. The power detection device and method of the harvester of the invention have the advantages of accurate detection data and high stability.
Description
Technical field
The invention belongs to united reaper technical field, relate to a kind of power detection device and method of harvester.
Background technology
Rice wheat combine harvester transaction capabilities index under standard condition mainly contains the total loss rate of seed, percentage of damage and percentage of impurity.Separating mechanism is the core component of control three indexs, and separating mechanism intermediate roll rotating speed is the principal element affecting three indexs.But three indexs are paradox.During with the comparatively slow-speed of revolution, seed damage is few, and the few seed percentage of impurity of broken stem stalk is low, low in energy consumption needed for threshing, but threshing not net loss increase; When using higher rotation speed, result in contrast.The threshing cylinder of current full feeding axial-flow combine harvester product all adopts single rotating speed, for reducing the loss and adopting higher rotation speed.Therefore, percentage of damage is higher, and the many cleaning loads of broken stem stalk are large, percentage of impurity is high, and power consumption is large, and operation quality is undesirable.For seeking under an operating mode reasonably rotating speed, the power of power different under realizing different operating state, realizes good crudy, needs equipment by experiment to carry out detecting and debugging.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose a kind of detect data accurately, the power detection device of the harvester of good stability and method.
Object of the present invention realizes by following technical proposal: a kind of power detection device of harvester, is characterized in that, comprising:
Test board, described test board is arranged on the both sides of detection axis on Devices to test;
Rotating assembly, two test boards all install rotating assembly, and the two ends of detection axis are connected to one end of rotating assembly respectively;
Power Component, described Power Component to be arranged on test board and to be connected to the other end of rotating assembly;
Detection system, described detection system comprises and is arranged on speed probe on rotating assembly and torque sensor, the processor be arranged on test board, described speed probe comprises optoelectronic switch and toothed disc, described toothed disc is offered 60 and is cut tooth, the pulse signal of generation is also delivered to processor by described optoelectronic switch detection of gear dish, and described torque sensor transmission detects data to processor.
In the power detection device of above-mentioned a kind of harvester, described rotating assembly comprises line shaft and coupling shaft, described torque sensor is arranged between line shaft and coupling shaft, described line shaft connects Power Component, the end of described coupling shaft is connected with cardan universal joint component, described cardan universal joint component is connected to detection axis, and be provided with sprocket wheel in the end of detection axis, sprocket wheel is connected with Devices to test by chain.
In the power detection device of above-mentioned a kind of harvester, described test board is also provided with asessory shaft assembly, described asessory shaft assembly comprises auxiliary axle, be connected to the stand-by motor of auxiliary axle one end and be connected to the cardan universal joint component of the auxiliary axle other end, and described cardan universal joint component is connected to Devices to test.
In the power detection device of above-mentioned a kind of harvester, described Power Component comprises power motor, be arranged on the main pulley on power motor and be arranged on rotating assembly from belt pulley, main pulley and be provided with connection belt between belt pulley.
A detection method for the power detection device of harvester, is characterized in that: comprising:
Processor receives the pulse signal of optoelectronic switch transmission;
Processor receives the detection data of torque sensor transmission;
Processor controls the sampling period T of optoelectronic switch and torque sensor
0, the count value of getting three sampling time inside counting sums calculates;
The computing formula adopted is:
Wherein: K
0three tacho-pulse total count value; F is current output frequency; N is torque range, 500Nm; K
1three torque pulse total count value; f
0it is torque offset output frequency; f
pit is forward Full-span output frequency.
In the detection method of the power detection device of above-mentioned a kind of harvester, described sampling period T
0adopt 0.1s.
Compared with prior art, the present invention has following advantage: the rotating assembly arranging connection in test system both sides, the actual working state of simulation test system, the speed probe that rotating assembly is installed and the actual data detecting rotating shaft of torque sensor energy, by processor, the driving power of process and analysis test system; Rotating assembly is arranged Universal connector interlock mechanical axis and coupling shaft, the torque and rotational speed that rotating assembly is detected is accurate, detects accurately; Gather to processor by pulsed power signal and torque pulse, calculate realtime power by rating formula, after repeatedly sampling detection, optimize Devices to test under different operating state, the power of Devices to test, it is convenient to optimize.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of side test board and parts in the present invention.
Fig. 3 is the structural representation of opposite side test board and parts in the present invention.
In figure, 1, test board; 2, rotating assembly; 21, line shaft; 22, coupling shaft; 23, cardan universal joint component; 24, bearing seat; 3, Power Component; 31, main pulley; 32, from belt pulley; 33, belt is connected; 34, power motor; 4, detection system; 41, torque sensor; 42, speed probe; 5, detection axis; 6, Devices to test; 7, asessory shaft assembly; 71, auxiliary axle; 72, stand-by motor.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Figure 1 to Figure 3, the power detection device of this harvester, comprising: test board 1, rotating assembly 2, Power Component 3 and detection system 4, and test board 1 is arranged on the both sides of detection axis 5 on Devices to test 6, rotating assembly 2 all installed by two test boards 1, one end of rotating assembly 2 is connected to respectively at the two ends of detection axis 5, rotating assembly 2 on the test board 1 of i.e. side is connected to the side of detection axis 5, detection axis 5 is communicated to the travelling mechanism on Devices to test 6 by the web member such as sprocket wheel or belt, and the upper rotating speed of measurement detection axis 5 and moment of torsion can obtain the power that power motor 34 exports, Power Component 3 to be arranged on test board 1 and to be connected to the other end of rotating assembly 2, and Power Component 3 can drive rotating assembly 2 to rotate, and then detects the power of Devices to test 6, detection system 4 comprises and is arranged on speed probe 42 on rotating assembly 2 and torque sensor 41, be arranged on the processor on test board 1, speed probe 42 comprises optoelectronic switch and toothed disc, toothed disc is offered 60 and is cut tooth, the pulse signal of generation is also delivered to processor by optoelectronic switch detection of gear dish, torque sensor 41 transmits and detects data to processor, rotating assembly 2 driven gear dish rotates, the tooth that cuts on optoelectronic switch detection of gear dish obtains pulse signal, pulse signal transmission to processor obtains the rotating speed of detection axis 5, the moment of torsion under different test period and different operating state is detected by torque sensor 41.
By the changed power under the actual different operating state of simulation harvester, the geometry & energy consumption of optimal design-aside harvester, reduce the cost of production and improve the R&D cycle of harvester, by speed probe 42 and torque sensor 41, the power conversion situation of real-time detection harvester in operational process, timely adjustment and optimizing structure and program, datumization is effective.
Rotating assembly 2 comprises line shaft 21 and coupling shaft 22, test board 1 is provided with bearing seat 24, line shaft 21 and coupling shaft 22 are installed on bearing seat 24, torque sensor 41 is arranged between line shaft 21 and coupling shaft 22, torque sensor 41 is connected by shaft coupling with the connection of line shaft 21 and coupling shaft 22, line shaft 21 connects Power Component 3, the end of coupling shaft 22 is connected with cardan universal joint component 23, cardan universal joint component 23 is connected to detection axis 5, the two ends of cardan universal joint component 23 connect the coupling shaft 22 and the detection axis 5 being connected Devices to test 6 that transmit power respectively, the two ends of cardan universal joint component 23 all arrange the universal portion of circumference rotation, middle connecting rod can regulate the spacing in universal portion, two ends, conveniently control and be connected detection axis 5 and coupling shaft 22, in the end of detection axis 5, sprocket wheel is installed, sprocket wheel is connected with Devices to test 6 by chain, chain can drive the work package of Devices to test 6, power is provided by detection axis 5, the convenient driving power detecting Devices to test 6.Adopt cardan universal joint component 23 to connect the rotating speed that Power Component 3 can be transmitted and moment of torsion is passed to detection axis 5, elimination axial force and tangential force, make the duty of detection axis 5 conform to practical production status.
Test board 1 is also provided with asessory shaft assembly 7, asessory shaft assembly 7 comprises auxiliary axle 71, be connected to the stand-by motor 72 of auxiliary axle 71 one end and be connected to the cardan universal joint component 23 of auxiliary axle 71 other end, cardan universal joint component 23 is connected to Devices to test 6.Auxiliary axle 71 is arranged on test board 1 by bearing seat 24, and asessory shaft assembly 7 to be arranged on test board 1 and parallel with rotating assembly 2, and asessory shaft assembly 7 drives the members of Devices to test 6, makes the practical state that the running status of cutting machine is realistic.
Power Component 3 comprises power motor 34, be arranged on the main pulley 31 on power motor 34 and be arranged on rotating assembly 2 from belt pulley 32, main pulley 31 and connect belt 33 from being provided with between belt pulley 32.
A power detecting method for harvester, comprising: processor receives the pulse signal of optoelectronic switch transmission; Processor receives the detection data that torque sensor 41 transmits; Processor controls the sampling period T of optoelectronic switch and torque sensor 41
0, the count value of getting three sampling time inside counting sums calculates;
The computing formula adopted is:
Wherein: K
0three tacho-pulse total count value; F is current output frequency; N is torque range, 500Nm; K
1three torque pulse total count value; f
0it is torque offset output frequency; f
pit is forward Full-span output frequency.As preferably, sampling period T
0adopt 0.1s, for ensureing measuring accuracy, the count value of getting in 3 sampling time inside counting sums and 0.3s calculates.
Test the speed employing optoelectronic switch, the toothed disc of correspondence is measured, each circle speed measuring fluted disc all has 60 to cut tooth, line shaft 21 driven gear dish often revolves and turns around, 60 pulses can be produced, when toothed disc continuous rotation, by optoelectronic switch output pulse signal, the number of teeth according to toothed disc outputs signal, and can calculate corresponding rotating speed.
The output signal of moment of torsion is that the processing form of square-wave signal occurs, the torque signal of torque sensor 41 gives DSP secondary instrument, directly the value of the real-time moment of torsion of display, rotating speed, power and RS232 communication signal.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (6)
1. a power detection device for harvester, is characterized in that, comprising:
Test board, described test board is arranged on the both sides of detection axis on Devices to test;
Rotating assembly, two test boards all install rotating assembly, and the two ends of detection axis are connected to one end of rotating assembly respectively;
Power Component, described Power Component to be arranged on test board and to be connected to the other end of rotating assembly;
Detection system, described detection system comprises and is arranged on speed probe on rotating assembly and torque sensor, the processor be arranged on test board, described speed probe comprises optoelectronic switch and toothed disc, described toothed disc is offered 60 and is cut tooth, the pulse signal of generation is also delivered to processor by described optoelectronic switch detection of gear dish, and described torque sensor transmission detects data to processor.
2. the power detection device of a kind of harvester according to claim 1, it is characterized in that, described rotating assembly comprises line shaft and coupling shaft, described torque sensor is arranged between line shaft and coupling shaft, described line shaft connects Power Component, and the end of described coupling shaft is connected with cardan universal joint component, and described cardan universal joint component is connected to detection axis, be provided with sprocket wheel in the end of detection axis, sprocket wheel is connected with Devices to test by chain.
3. the power detection device of a kind of harvester according to claim 2, it is characterized in that, described test board is also provided with asessory shaft assembly, described asessory shaft assembly comprises auxiliary axle, be connected to the stand-by motor of auxiliary axle one end and be connected to the cardan universal joint component of the auxiliary axle other end, and described cardan universal joint component is connected to Devices to test.
4. the power detection device of a kind of harvester according to claim 1,2 or 3, it is characterized in that, described Power Component comprises power motor, be arranged on the main pulley on power motor and be arranged on rotating assembly from belt pulley, main pulley and be provided with connection belt between belt pulley.
5. a detection method for the power detection device of harvester described in claim 1,2 or 3, is characterized in that: comprising:
Processor receives the pulse signal of optoelectronic switch transmission;
Processor receives the detection data of torque sensor transmission;
Processor controls the sampling period T of optoelectronic switch and torque sensor
0, the count value of getting three sampling time inside counting sums calculates;
The computing formula adopted is:
Wherein: K
0three tacho-pulse total count value; F is current output frequency; N is torque range, 500Nm; K
1three torque pulse total count value; f
0it is torque offset output frequency; f
pit is forward Full-span output frequency.
6. the detection method of the power detection device of a kind of harvester according to claim 6, is characterized in that, described sampling period T
0adopt 0.1s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511022627.8A CN105424247A (en) | 2015-12-31 | 2015-12-31 | Power detection device and method of harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511022627.8A CN105424247A (en) | 2015-12-31 | 2015-12-31 | Power detection device and method of harvester |
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| Publication Number | Publication Date |
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| CN105424247A true CN105424247A (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201511022627.8A Pending CN105424247A (en) | 2015-12-31 | 2015-12-31 | Power detection device and method of harvester |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106185242A (en) * | 2016-09-06 | 2016-12-07 | 农业部南京农业机械化研究所 | A kind of auger conveyor overload detector and detection method |
| CN106525478A (en) * | 2016-12-29 | 2017-03-22 | 四川省农业机械研究设计院 | Crop combine harvester torque load test platform |
| CN107063682A (en) * | 2017-04-25 | 2017-08-18 | 浙江硕和机器人科技有限公司 | A kind of guide plate sprocket wheel detection means |
| CN107796953A (en) * | 2017-11-13 | 2018-03-13 | 安徽蓝海之光科技有限公司 | A kind of mining velocity sensor |
-
2015
- 2015-12-31 CN CN201511022627.8A patent/CN105424247A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106185242A (en) * | 2016-09-06 | 2016-12-07 | 农业部南京农业机械化研究所 | A kind of auger conveyor overload detector and detection method |
| CN106525478A (en) * | 2016-12-29 | 2017-03-22 | 四川省农业机械研究设计院 | Crop combine harvester torque load test platform |
| CN106525478B (en) * | 2016-12-29 | 2018-12-28 | 四川省农业机械研究设计院 | Corp combine-harvester torsion load test platform |
| CN107063682A (en) * | 2017-04-25 | 2017-08-18 | 浙江硕和机器人科技有限公司 | A kind of guide plate sprocket wheel detection means |
| CN107063682B (en) * | 2017-04-25 | 2023-05-30 | 浙江硕和机器人科技有限公司 | Guide plate sprocket detection device |
| CN107796953A (en) * | 2017-11-13 | 2018-03-13 | 安徽蓝海之光科技有限公司 | A kind of mining velocity sensor |
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Effective date of registration: 20161011 Address after: 710064 Xi'an Second Ring Road, Chang'an University, Shaanxi Applicant after: Changan Univ. Address before: 321007 Zhejiang Province, Jinhua city Wucheng District Wuzhou Street No. 1188 Applicant before: Jinhua College of Vocation and Technology |
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Application publication date: 20160323 |
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