CN110726624B - Method for measuring root lodging resistance strength of corn stalks - Google Patents
Method for measuring root lodging resistance strength of corn stalks Download PDFInfo
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- CN110726624B CN110726624B CN201911111215.XA CN201911111215A CN110726624B CN 110726624 B CN110726624 B CN 110726624B CN 201911111215 A CN201911111215 A CN 201911111215A CN 110726624 B CN110726624 B CN 110726624B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/005—Electromagnetic means
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Abstract
The invention discloses a measuring device for measuring the root lodging resistance strength of crop stalks, which comprises a support frame, a driving device, a data acquisition and display device and a rotary pushing device, wherein: the driving device is arranged on the supporting frame and used for driving the rotary pushing device, and the data acquisition and display device is used for acquiring and displaying speed and angle signals of the driving device and the rotary pushing device; the support frame is built by aluminium alloy. The invention has the advantages of convenient carrying, convenient measurement and high measurement precision, and can also be suitable for measuring other crops such as wheat and the like.
Description
Technical Field
The invention belongs to the field of agricultural machinery, and particularly relates to a device and a method for measuring lodging-resistant strength of crop stem roots.
Background
With the proposal and practice of increasing the yield of the close planting cultivation of the corn, the lodging of the corn becomes an important problem limiting the high and stable yield of the corn. According to statistics, the yield of the corn lodging is reduced by 5-10% for light people, and the yield is reduced by 30-50% for heavy people, even the corn lodging is out of the normal. The lodging of the corn not only affects the yield and the quality of the corn, but also is not suitable for mechanized harvesting of the corn, and restricts the agricultural intensive production.
Corn lodging is divided into root lodging, stem lodging and stem folding, wherein the root lodging is most affected by density, and the yield loss is also most serious. The lodging of the root is caused by the damage of the root-soil anchoring system, the lodging risk of the root depends on the dead weight bending moment (bending moment) applied to the complete plant and the anchoring strength of the root system except the influence of external factors, such as wind, rain and the like, and the anchoring strength of the root is measured by the maximum moment which can be born by the root system under the action of external force. However, most of the existing researches are to measure the uprooting resistance of the corn stalks, the maximum moment born by a root system from a vertical state to lodging when the root system is stressed is not involved, meanwhile, the operation for measuring the uprooting resistance is complex, the corn stalks are not easy to clamp, the measurement precision is not high, and the use of the instrument is limited due to the complex diversity of the field environment and the difference among different corn stalks.
Therefore, starting from the actual situation of the mechanical property of the corn stalk, the invention provides the measuring device for measuring the lodging-resistant strength of the stalk root of the crop, the device is convenient to carry and measure, has high measuring precision, can also be suitable for measuring other crops such as wheat and the like, and has wide and profound significance.
Disclosure of Invention
In order to realize the purpose of the invention, the following technical scheme is adopted for realizing the purpose:
the utility model provides a measure measuring device of anti root lodging intensity of crop stem stalk, includes support frame, drive arrangement, data acquisition display device, rotatory thrust unit and can turn to wheel part, wherein: the driving device is arranged on the supporting frame and used for driving the rotary pushing device, and the data acquisition and display device is used for acquiring and displaying torque and angle signals of the driving device and the rotary pushing device; the support frame is built by aluminum profiles; four steerable wheel parts are installed on two sides of the support frame in pairs.
The measuring device, wherein: the support frame includes two parallel arrangement's crossbeam and two parallel arrangement's longeron, longeron and crossbeam mutually perpendicular, and first longeron setting is in one side of two crossbeams, and the both ends of first longeron respectively with two crossbeam fixed connection, the both ends of two longerons respectively with two crossbeam fixed connection, all be equipped with the mounting hole on crossbeam, the longeron.
The measuring device, wherein: the driving device comprises a motor driver, a stepping motor, a controller, a torque sensor, a coupler, a non-aligning bearing seat and a connecting shaft.
The measuring device, wherein: the motor driver is fixed on the second cross beam, and the stepping motor is installed on the second longitudinal beam through the motor support.
The measuring device, wherein: the motor support comprises a bottom plate and a side plate perpendicular to the bottom plate, a plurality of mounting holes are formed in the bottom plate and the side plate, center holes are formed in the side plate, a motor shaft of the stepping motor extends out of the center hole of the motor support, a fastening screw penetrates through the mounting hole in the side plate of the motor support and then is screwed into a mounting threaded hole of the stepping motor, the stepping motor is fixed to the side plate, the mounting hole in the bottom plate of the motor support is aligned with the mounting hole in the second longitudinal beam, and the motor support is fixed to the second longitudinal beam through a screw nut gasket structure.
The measuring device, wherein: an output shaft of the motor is connected with a torque sensor through a coupler, the torque sensor and a connecting shaft are fixed together through a flange plate and a screw gasket nut, a non-aligning bearing seat is fixed in a mounting hole of the first longitudinal beam through a fixing screw, a built-in bearing of the non-aligning bearing seat is used for supporting the connecting shaft, and external threads are arranged on the connecting shaft.
The measuring device, wherein: the rotary pushing device comprises a chuck, a bending arm and two adjustable clamping parts, wherein the chuck is in threaded connection with a connecting shaft through a threaded hole at the rear end of the chuck, three clamping claws capable of clamping and loosening are arranged at the front end of the chuck, the bending arm comprises a first transverse rod, a longitudinal rod and a second transverse rod which are sequentially connected, the first transverse rod and the second transverse rod are parallel, the two ends of the longitudinal rod are respectively perpendicularly connected with the first transverse rod and the second transverse rod, the clamping claws at the front end of the chuck clamp the first transverse rod of the bending arm, and the two adjustable clamping pieces are arranged on the second transverse rod.
The measuring device, wherein: the inclination angle sensor is fixed on the bending arm in parallel through hot melt adhesive, the clamping part is fixed on the bending arm, and the torque sensor and the inclination angle sensor are electrically connected with the data acquisition and display device; every adjustable clamping piece all includes two adjustable bolt supports of taking, every adjustable bolt support of taking includes that one end area of two parallel arrangement buckles and one end sets up the threaded bolt of buckling, the baffle welding is on the position of two nearly buckles of the bolt of buckling, two pipe clamps are through the opening cover of its both sides at two bolts 1 of buckling, the semicircular notch that two pipe clamp middle parts were equipped with sets up in opposite directions, form circular mounting groove, the second horizontal pole is inserted in circular mounting groove, the pipe clamp in the outside passes through the gasket, the nut locks.
The measuring device, wherein: the data acquisition and display device comprises an AD conversion module, a single chip microcomputer module, a liquid crystal display module, a Bluetooth module and a power supply module, wherein the AD conversion module receives analog voltage signals transmitted by a torque sensor and a tilt sensor, converts the acquired voltage signals into digital signals and transmits the digital signals to the single chip microcomputer module, the single chip microcomputer module processes the received digital signals and restores the digital signals into corresponding measured values and transmits the measured values to the liquid crystal display module and the Bluetooth module, and the liquid crystal display module displays a moment value and an angle value in real time; the Bluetooth module transmits data in the singlechip module to the upper computer power module in a Bluetooth communication mode to supply power to the whole data acquisition display instrument.
The measuring device, wherein: the steerable wheel component comprises a steerable wheel and a locking component, wherein the steerable wheel comprises two connecting plates with the same shape and size, the upper part and the lower part of each connecting plate are respectively provided with a mounting hole, bearings are arranged in the upper mounting hole and the lower mounting hole, an upper wheel shaft is inserted into the two bearings at the upper part, a lower wheel shaft is inserted into the two bearings at the lower part, and the lower wheel shaft is provided with a wheel between the two connecting plates; one end of the upper wheel shaft, which is exposed out of one connecting plate, is welded with a connecting piece, and the connecting piece is provided with a mounting hole which is aligned with the mounting hole on the cross beam of the support frame and then is connected with the mounting hole through a fastening screw.
The measuring device, wherein: the crossbeam is provided with two clamping holes, the distance between the first clamping hole and the wheel is longer than that between the second clamping hole and the wheel, the lower part of the connecting plate close to the crossbeam is welded with a boss, the main body of the locking component is in a long strip rod shape, the upper part of the locking component is welded with a convex column, the lower part of the locking component is provided with a locking hole, when the wheel is in a vertical position, the convex column is inserted into the first clamping hole, the locking hole is sleeved on the boss, when the wheel is in a horizontal position, the convex column is inserted into the second clamping hole, and the locking hole is sleeved on.
Drawings
FIG. 1 is an overall block diagram of the present invention;
figure 2 is a schematic view of a steerable wheel according to the present invention;
FIG. 3a is a schematic view of the retaining member of the present invention;
figure 3b is a schematic view of a steerable wheel mounting arrangement;
FIG. 4 is a schematic view of the adjustable bolted bracket and pipe clamp of the present invention in mating relationship;
FIG. 5 is a schematic view of a vertical assay according to the present invention;
FIG. 6 is a block diagram of the present invention;
fig. 7 is a suitable view of the data acquisition display device housing package.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1, the measuring apparatus for measuring the root lodging resistance strength of crop stalks comprises: support frame 12, drive arrangement, data acquisition display device, rotatory thrust unit and steerable wheel part. The driving device is arranged on the support frame 12 and used for driving the rotary pushing device, the data acquisition and display device is used for acquiring and displaying signals such as speed and angle of the driving device and the rotary pushing device, the four steerable wheel components are arranged on two side edges of the support frame 12 in pairs, when the measuring device is pushed, the wheels are in a vertical state, and when the measuring device is used for in-ground measurement, the wheels can be turned over and folded to be in a horizontal state so as to keep the measuring device stable and motionless.
The support frame 12 comprises two parallel crossbeams and two parallel longitudinal beams, the longitudinal beams are perpendicular to the crossbeams, the first longitudinal beam is arranged on one side of the two crossbeams, two ends of the first longitudinal beam are fixedly connected with the two crossbeams respectively, the second longitudinal beam is arranged on the other side of the two crossbeams, two ends of the second longitudinal beam are fixedly connected with the two crossbeams respectively, and mounting holes are formed in the crossbeams and the longitudinal beams.
As shown in fig. 2, 3a and 3b, the steerable wheel component comprises a steerable wheel 3 and a locking component 4, wherein the steerable wheel 3 comprises two connecting plates 305 with the same shape and size, the upper and lower parts of the two connecting plates 305 are respectively provided with a mounting hole, bearings 302 are arranged in the upper and lower mounting holes, an upper axle 301 is inserted into the upper two bearings 302, a lower axle 301 is inserted into the lower two bearings 302, and a wheel 306 is arranged on the lower axle 301 at a position between the two connecting plates 305; one end of the upper wheel axle 301, which is exposed out of one connecting plate 305, is welded with a connecting piece 303, and the connecting piece 303 is provided with a mounting hole which is aligned with a mounting hole on a cross beam of the support frame 12 and then connected with the mounting hole through a fastening screw so as to mount the steerable wheel 3 on the cross beam. As shown in fig. 3b, two fastening holes 1201 and 1202 are formed on the cross beam, and the first fastening hole 1201 is farther from the wheel than the second fastening hole 1202. A boss 304 is welded at the lower part of a connecting plate 305 close to the cross beam, the main body of the locking component 4 is in a long strip rod shape, a convex column 401 is welded at the upper part, a locking hole 402 is arranged at the lower part, when the wheel is in a vertical position, the convex column is inserted into a first clamping hole 1201, the locking hole 402 is sleeved on the boss 304, the wheel can be locked at the vertical position, and the measuring device can be pushed at the moment; when the wheel is in the horizontal position, the convex column 401 is inserted into the second clamping hole 1202, and the locking hole 402 is sleeved on the convex platform 304, so that the horizontal position of the wheel can be maintained, namely the wheel is in the turnover position.
The driving device comprises a power switch 6, a detachable lithium battery 8, a motor driver 14, a stepping motor 13, a controller 15, a torque sensor 9, a coupler 10, a non-aligning bearing seat 5 and a connecting shaft 7. The controller 15 is electrically connected with the motor driver 14, the motor driver 14 is electrically connected with the stepping motor 13, the controller 15 sends a pulse to the motor driver 14, and the motor driver 14 works to further drive the stepping motor 13 to rotate. Wherein, motor driver 14 is fixed at the second crossbeam through screw nut gasket structure, and step motor 13 passes through motor support 11 to be installed on the second longeron, and motor support 11 includes bottom plate and with bottom plate vertically curb plate, all is equipped with a plurality of mounting holes on bottom plate and the curb plate, still is equipped with the centre bore on the curb plate. A motor shaft of the stepping motor 13 extends out of a center hole of the motor support 11, a fastening screw penetrates through a mounting hole in a side plate of the motor support 11 and then is screwed into a mounting threaded hole of the stepping motor 13, the stepping motor 13 is fixed on the side plate, a mounting hole in a bottom plate of the motor support 11 is aligned with a mounting hole in a second longitudinal beam, and the fixing support is fixed on the second longitudinal beam through a screw nut gasket structure; the power supply switch 6 and the detachable lithium battery 8 are fixed on the support frame 12 (on the first beam) through hot melt adhesive, and the power supply switch 6 is arranged in a power supply circuit between the battery 8 and the controller 15 and between the motor drivers 14 and used for controlling the on-off of the power supply circuit.
An output shaft of the motor 13 is connected with the torque sensor 9 through a coupling 10, and the torque sensor 9 and the connecting shaft 7 are fixed together through a flange plate and a screw gasket nut. The non-aligning bearing seat 5 is fixed in a mounting hole of the first longitudinal beam through a fixing screw, a built-in bearing of the non-aligning bearing seat is used for supporting the connecting shaft 7, and external threads are arranged on the connecting shaft 7.
The rotary pushing device comprises a chuck 2, a bending arm 1 and two adjustable bolt supports, wherein the chuck 2 is in threaded connection with a connecting shaft 7 through a threaded hole at the rear end of the chuck 2, three clamping claws capable of clamping and loosening are arranged at the front end of the chuck 2, the bending arm 1 comprises a first transverse rod, a longitudinal rod and a second transverse rod which are sequentially connected, the first transverse rod and the second transverse rod are parallel, two ends of the longitudinal rod are respectively and vertically connected with the first transverse rod and the second transverse rod, the first transverse rod of the bending arm 1 is clamped by the clamping claws at the front end of the chuck 2, two adjustable bolt supports 19 which are arranged in parallel are fixed on the second transverse rod, as shown in figure 4, each adjustable bolt support 19 comprises two bending bolts 1905 which are arranged in parallel and are provided with threads 1902 at one end, a baffle 1901 is welded on the positions, which are close to bending of the two bending bolts 1905, two pipe clamps 20 are sleeved on the two bending bolts 1905 through openings at two sides, the semicircular notches in the middle of the two pipe clamps 20 are arranged oppositely to form a circular mounting groove, the second cross rod is inserted into the circular mounting groove, the pipe clamps 20 on the outer side are locked through the gaskets 1904 and the nuts 1903, the adjustable bolt-containing supports 19 can be fixed on the second cross rod, and the distance between the two pipe supports 19 can be adjusted by moving the two clamping parts according to the diameter of a measured plant. The inclination angle sensor 18 is fixed on the bending arm 1 in parallel through hot melt adhesive, and the torque sensor 9 and the inclination angle sensor 18 are electrically connected with the data acquisition and display device, are used for detecting the change of moment and angle and output the change to the data acquisition and display device in the form of analog signal voltage. Specifically, the output end of the torque sensor 9 is connected with the input end of the transmitter 16, and the output end of the transmitter 16 is electrically connected with the data acquisition and display device through a signal wire; the output end of the tilt sensor 18 is electrically connected with the data acquisition and display device through a signal wire.
The data acquisition and display device 17 comprises an AD conversion module 21, a single chip microcomputer module 22, a liquid crystal display module 26, a Bluetooth module 23 and a power supply module 25, the AD conversion module 21 receives analog voltage signals transmitted by the torque sensor 9 and the tilt sensor 18, converts the acquired voltage signals into digital signals and transmits the digital signals to the single chip microcomputer module 22, the single chip microcomputer module 22 processes the received digital signals to restore the digital signals into corresponding measured values and transmits the measured values to the liquid crystal display module 26 and the Bluetooth module 23, and the liquid crystal display module 26 displays a moment value (a torque value (Nm) detected by the torque sensor) and an angle value in real time; the bluetooth module 23 transmits data in the single chip module 22 to an upper computer (for example, a mobile phone, a PDA, a personal computer, etc. equipped with the control system 24) in a bluetooth communication manner, and the power module 25 is used for supplying power to the entire data acquisition and display instrument 17. The data acquisition and display device 17 is enclosed by a housing to avoid being invaded by dust, as shown in fig. 7, the data acquisition and display device 17 is provided with a switch button 172 and a wiring inlet 171, and the data acquisition and display device 17 is connected with the torque sensor 9 and the tilt sensor 18 through signal wires.
In the invention, the controller 15 is a stepping motor speed-regulating fixed-length controller, the stepping motor 13 is a stepping motor, the torque sensor 9 is a static torque sensor with the measuring range of 0-100 Nm, the tilt sensor 18 is a WK210 series voltage output single-shaft tilt sensor, the singlechip module 22 comprises a central processing unit STC89C52RC, and the liquid crystal display module 26 is a 12864 LCD. The power module 25 uses a 3.7V18650 rechargeable lithium battery. The Bluetooth module 23 is an HC-05 Bluetooth module. The control system 24 of the upper computer is developed based on an android system, and the functions of the control system include real-time data display, curve drawing, historical data query, data export and the like.
As shown in figure 5, the measuring device of the invention mainly measures the inclination angle theta and the corresponding moment M of the crop stem under the action of the vertical constant-speed thrust, and the thrust in figure 5
Wherein theta is an angle between the bending arm 1 and a vertical line of the ground, is approximately equal to an angle of the measured stalk deviated from a vertical position, and can be regarded as an inclination angle of the stalk after being pushed.
The measuring method comprises the following steps:
(1) turning on a power switch, turning on a motor controller 15, and adjusting the angle and speed of the motor to be rotated on the controller according to requirements; adjusting the angle of the bending arm according to the angle reading displayed by the liquid crystal display screen to ensure that the longitudinal rod of the bending arm is vertical to the ground, so that the initial state of the bending arm is 0 degree;
(2) slowly leaning the opening of the clamping component against the measured stalk measuring position, and pressing a 'start' button on a control system interface of an upper computer;
(3) after the motor is rotated to a required angle at a constant speed, pressing a pause button or an end button, checking historical data and exporting the data;
(4) and pressing a reset key on the motor controller to return the bending arm to the initial 0-degree position. And (4) after one plant is measured, repeating the steps 1-4, and measuring other plants again.
In the measuring process, the torque sensor 9 and the tilt angle sensor 18 acquire a thrust moment value and a tilt angle value borne by the measured crop stem in real time, convert the thrust moment value and the tilt angle value into an analog signal voltage value, send the analog signal voltage value to the data acquisition and display device and transmit the analog signal voltage value to the AD conversion module 21, the AD conversion module 21 is used for converting the acquired voltage signal into a digital signal and sending the digital signal to the single chip microcomputer module 22, the single chip microcomputer module 22 is used for processing the received digital signal and reducing the digital signal into a corresponding measured value, and the liquid crystal display module 26 displays the torque value and the angle value in real time; and the Bluetooth module 23 is used for transmitting data in the singlechip module 22 to an upper computer through Bluetooth, the upper computer displays the measured torque value and the measured inclination angle value in real time, the angle value is used as a horizontal coordinate, the torque value is used as a vertical coordinate to draw a relation curve between the torque value and the inclination angle value, when the measurement is stopped, an 'end' key in an interface of a control system of the upper computer is pressed, and after a 'history record' key is pressed, data is exported to excel for post-processing.
Claims (1)
1. The utility model provides a measure measuring device of anti root lodging intensity of crop stem stalk, includes support frame, drive arrangement, data acquisition display device, rotatory thrust unit and can turn to wheel part, its characterized in that: the driving device is arranged on the supporting frame and used for driving the rotary pushing device, and the data acquisition and display device is used for acquiring and displaying torque and angle signals of the driving device and the rotary pushing device; the support frame is built by aluminum profiles; the four steerable wheel components are arranged on two side edges of the support frame in pairs; the steerable wheel component comprises a steerable wheel and a locking component, wherein the steerable wheel comprises two connecting plates with the same shape and size, the upper part and the lower part of each connecting plate are respectively provided with a mounting hole, bearings are arranged in the upper mounting hole and the lower mounting hole, an upper wheel shaft is inserted into the two bearings at the upper part, a lower wheel shaft is inserted into the two bearings at the lower part, and the lower wheel shaft is provided with a wheel between the two connecting plates; one end of the upper wheel shaft, which is exposed out of one connecting plate, is welded with a connecting piece, and the connecting piece is provided with a mounting hole which is aligned with the mounting hole on the cross beam of the support frame and then is connected with the mounting hole through a fastening screw; the cross beam is provided with two clamping holes, the distance from the first clamping hole to the wheel is longer than that from the second clamping hole to the wheel, the lower part of the connecting plate close to the cross beam is welded with a boss, the main body of the locking component is in a long strip rod shape, the upper part of the locking component is welded with a convex column, the lower part of the locking component is provided with a locking hole, when the wheel is in a vertical position, the convex column is inserted into the first clamping hole, the locking hole is sleeved on the boss, when the wheel is in a horizontal position, the convex column is inserted into the second clamping hole, and the locking hole is; the support frame comprises two parallel cross beams and two parallel longitudinal beams, the longitudinal beams are perpendicular to the cross beams, the first longitudinal beam is arranged on one side of the two cross beams, two ends of the first longitudinal beam are fixedly connected with the two cross beams respectively, two ends of the two longitudinal beams are fixedly connected with the two cross beams respectively, and mounting holes are formed in the cross beams and the longitudinal beams; the driving device comprises a motor driver, a stepping motor, a controller, a torque sensor, a coupler, a non-aligning bearing seat and a connecting shaft, wherein the motor driver is fixed on the second cross beam, and the stepping motor is arranged on the second longitudinal beam through a motor support; the motor support comprises a bottom plate and a side plate perpendicular to the bottom plate, a plurality of mounting holes are formed in the bottom plate and the side plate, a central hole is further formed in the side plate, a motor shaft of the stepping motor extends out of the central hole of the motor support, a fastening screw penetrates through the mounting hole in the side plate of the motor support and then is screwed into a mounting threaded hole of the stepping motor, the stepping motor is fixed on the side plate, the mounting hole in the bottom plate of the motor support is aligned with the mounting hole in the second longitudinal beam, and the motor support is fixed on the second longitudinal beam through a screw nut gasket structure; an output shaft of the motor is connected with a torque sensor through a coupler, the torque sensor and a connecting shaft are fixed together through a flange plate and a screw gasket nut, a non-aligning bearing seat is fixed in a mounting hole of the first longitudinal beam through a fixing screw, a built-in bearing of the non-aligning bearing seat is used for supporting the connecting shaft, and external threads are arranged on the connecting shaft; the rotary pushing device comprises a chuck, a bending arm and two adjustable clamping parts, wherein the chuck is in threaded connection with the connecting shaft through a threaded hole at the rear end of the chuck, three clamping claws capable of clamping and loosening are arranged at the front end of the chuck, the bending arm comprises a first transverse rod, a longitudinal rod and a second transverse rod which are sequentially connected, the first transverse rod and the second transverse rod are parallel, two ends of the longitudinal rod are respectively and vertically connected with the first transverse rod and the second transverse rod, the clamping claws at the front end of the chuck clamp the first transverse rod of the bending arm, and the two adjustable clamping pieces are arranged on the second transverse rod; the inclination angle sensor is fixed on the bending arm in parallel through hot melt adhesive, the clamping part is fixed on the bending arm, and the torque sensor and the inclination angle sensor are electrically connected with the data acquisition and display device; every adjustable clamping piece all includes two adjustable bolt supports of taking, every adjustable bolt support of taking includes that one end area of two parallel arrangement buckles and one end sets up the threaded bolt of buckling, the baffle welding is on the position of two nearly buckles of the bolt of buckling, two pipe clamps are through the opening cover of its both sides on two bolts of buckling, the semicircular notch that two pipe clamp middle parts were equipped with sets up in opposite directions, form circular mounting groove, the second horizontal pole is inserted in circular mounting groove, the pipe clamp in the outside passes through the gasket, the nut locks.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911111215.XA CN110726624B (en) | 2019-11-14 | 2019-11-14 | Method for measuring root lodging resistance strength of corn stalks |
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| CN201911111215.XA CN110726624B (en) | 2019-11-14 | 2019-11-14 | Method for measuring root lodging resistance strength of corn stalks |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201633469U (en) * | 2010-01-28 | 2010-11-17 | 河南农业大学 | Foldable wheel mechanism of pesticide-spraying agricultural truck with high ground clearance |
| CN108849421A (en) * | 2018-07-04 | 2018-11-23 | 张铃翎 | A kind of agricultural planting irrigation rig easy to remove |
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| CN202281723U (en) * | 2011-06-23 | 2012-06-20 | 河南科技学院 | Portable crop lodging-resistant strength electronic determinator |
| CN206353109U (en) * | 2016-12-09 | 2017-07-25 | 北京农业智能装备技术研究中心 | A kind of rotational measuring device of crop lodging resistance |
| CN107333628A (en) * | 2017-08-11 | 2017-11-10 | 朱晓 | A kind of multi-functional agricultural irrigation device |
| CN108760503B (en) * | 2018-07-19 | 2020-11-06 | 黑龙江省农业科学院佳木斯水稻研究所 | Rice stem lodging resistance strength measuring device |
| CN208621414U (en) * | 2018-08-14 | 2019-03-19 | 江苏徐淮地区淮阴农业科学研究所 | Gramineous crop stalk fracture resistence force rapid determination device |
| CN109100167B (en) * | 2018-09-04 | 2020-04-03 | 四川省农业机械研究设计院 | Performance test platform of ridge culture crop harvester |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201633469U (en) * | 2010-01-28 | 2010-11-17 | 河南农业大学 | Foldable wheel mechanism of pesticide-spraying agricultural truck with high ground clearance |
| CN108849421A (en) * | 2018-07-04 | 2018-11-23 | 张铃翎 | A kind of agricultural planting irrigation rig easy to remove |
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