CN106954431B - Large-ridge double-row straw deep-burying returning machine - Google Patents
Large-ridge double-row straw deep-burying returning machine Download PDFInfo
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- CN106954431B CN106954431B CN201710242908.7A CN201710242908A CN106954431B CN 106954431 B CN106954431 B CN 106954431B CN 201710242908 A CN201710242908 A CN 201710242908A CN 106954431 B CN106954431 B CN 106954431B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D82/00—Crop conditioners, i.e. machines for crushing or bruising stalks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
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Abstract
A large-ridge double-row straw deep-burying returning machine belongs to the technical field of agricultural machinery. The straw collection device is formed by symmetrically connecting two groups of spiral rollers through connecting shafts, the connecting shafts are fixed on the rack through connecting plates, each group of spiral rollers is formed by symmetrically and obliquely arranging two groups of blades, and straws and weeds are cut up and then collected from two sides to the middle; the rotary shaft barrel of the burying device is connected with an output shaft of the gearbox through a transmission device, the rotary shaft barrel is in transmission connection with the straw collecting device, a rotary shovel blade of the burying device is arranged in the furrow, and a pesticide discharger of the pesticide box device is arranged behind the collecting device. The invention can complete the operations of stubble cleaning, straw collection, burying, rolling and the like at one time in the operation process, and achieves the effects of deep straw burying and returning to the field, soil fertility improvement and soil organic matter enhancement.
Description
Technical Field
The invention belongs to the technical field of agricultural machinery, and particularly relates to a straw deep-burying and returning machine for a large-ridge double-row planting mode of corn.
Background
The three provinces in northeast China are the largest corn main production areas in China, the corn planting area reaches 2.3 hundred million acres, and the amount of the corn straws which can be collected every year exceeds 1.1 hundred million tons. However, the total utilization rate of the northeast corn straws is less than 50 percent, most of the straws are discarded or burned, and a great amount of agricultural resources are wasted while serious environmental pollution is caused. A large number of researches show that the crop straws contain rich nitrogen, phosphorus, potassium and trace element components and are one of important organic fertilizer sources. The straw returning can effectively increase the organic matter content of soil, improve the soil structure and solve the problem of environmental pollution caused by stacking and burning due to excessive straw in China. In recent years, the Ministry of agriculture strongly recommends straw returning technology to rural areas throughout the country in order to more effectively utilize straw resources. Through research on straw returning technology and matched operating procedures, the direct returning of straws to the field has already been popularized and applied to China to a certain extent. However, the existing stubble ploughing machine also has some problems in the field returning process, for example, the straw returning and soil entering are shallow, how to clear the straws in a certain width range at the two sides of the furrow into the furrow, and the existing stubble ploughing machine is lack of corresponding machines and tools with high collecting efficiency and low power consumption. Therefore, the research and demonstration of the technical index research (201503116) for reasonable plough layer construction in dry land, which is derived from the special expenditure project of public welfare industry (agriculture) scientific research, and the research and demonstration of the reasonable plough layer construction of matched agricultural implements in dry land in the south-middle part of the northeast plain are provided. The invention discloses a 1JGSM type straw deep-burying returning machine, which meets the technical requirements of deep ploughing, soil improvement, interval farming, straw returning and the like.
Disclosure of Invention
Aiming at the technical problems, the invention provides a large-ridge double-row straw deep-burying returning machine. The combined type straw mulching machine can complete straw collection, burying, soil covering, soil compacting and other dry land soil preparation and straw mulching operations in one operation, can achieve the effects of deep loosening and soil fertility bettering so as to enhance soil organic matters, effectively achieves single machine tool combined operation, achieves plough layer mode effects of loosening and loosening between tight rows of seedling belts, and solves the problems of interplanting cultivation and straw mulching.
The purpose of the invention is realized by the following technical scheme:
the invention relates to a large-ridge double-row straw deep-burying field-returning machine, which comprises a rack, a gearbox, a transmission device, a straw collecting device, a medicine box device, a burying device, a soil covering device and a pressing device, wherein the straw collecting device, the medicine box device, the burying device, the soil covering device and the pressing device are sequentially arranged on the rack from the front end to the rear end of work; the rotary shaft barrel of the burying device is connected with an output shaft of the gearbox through a transmission device, the rotary shaft barrel is in transmission connection with the straw collecting device, a rotary shovel blade of the burying device is arranged in the furrow, and a pesticide discharger of the pesticide box device is arranged behind the collecting device.
Further, the blades on each group of spiral rollers of the straw collecting device are symmetrically arranged, the two groups of blades are arranged in a spiral shape at staggered and equal intervals, and are conveyed from two ends to the middle to be collected in 60cm between ridges.
Further, the included angle alpha between the blade and the horizontal line is 10-20 degrees.
Further, the staggered joints of the two groups of blades have 1-3mm of overlapping amount.
Furthermore, the blade is provided with a cutting edge, and the cutting edge angle is 14-20 degrees.
Further, bury the device including rotatory beam barrel, rotatory spade blade and support native board, follow rotatory beam barrel axial sets up two row at least rotatory spade blades and holds in the palm the native board, rotatory spade blade and support the setting of native board interval, and rotatory spade blade is located rotatory beam barrel one side, holds in the palm the native board and is located rotatory beam barrel opposite side, holds in the palm the radius that the radius of native board is less than rotatory spade blade, the radius difference is the depth of tilling height, promptly: when the rotary spade blade cuts the upturned soil, the soil supporting plate is just dragged to the upper end of the upturned soil.
Furthermore, when the rotary shovel blades are arranged in two rows, three rotary shovel blades close to one row of the end parts are uniformly distributed along the circumference of the rotary shaft cylinder, bent towards the inner side and arranged along the same direction; the other row of rotary shovel blades are six and evenly distributed along the circumference of the rotary shaft barrel, wherein three rotary shovel blades are bent inwards, and the other three rotary shovel blades are bent outwards.
Further, the mounting angle β of the rotary shovel blade is 72-81 °.
Furthermore, the phase angle gamma of the soil supporting plate and the blade is 60-65 degrees.
Further, the earthing device pass through the fixed plate installation and fix on the back-bearer of frame, include the connecting plate of being connected with the fixed plate, the covering ware of being connected with the connecting plate, the covering ware includes the diaphragm of connecting in the connecting plate both sides through round pin axle symmetry, be connected with the backup pad between two diaphragms, be connected with the mount on the connecting plate, the pole one end that the cover was equipped with the spring is connected in the backup pad, the through-hole of mount is stretched out to the other end, along through-hole up-and-down motion under the effect of spring force, two diaphragm end connection earthing connecting rods, pass through convex connecting plate symmetric connection earthing plate at earthing connecting rod both ends.
The invention has the beneficial effects that:
1. the machine comprises a spiral roller type straw collecting device, a medicine chest device, a burying device, a soil covering device, a pressing device, a rack, a gearbox, a transmission device and the like. The straw collecting device can cut the straws, weeds and the like and collect the straws, the weeds and the like from two sides to the middle; the rotary shovel blade and the soil supporting plate of the burying device are both arranged on the rotary shaft cylinder, and when the rotary shovel cuts clod soil, the soil supporting plate just drags the upper end of the clod soil, so that the cut clod soil can be overturned and fall down to bury straws, weeds and the like in soil. The pesticide discharging device of the pesticide box device is arranged behind the collecting device, and can timely and uniformly discharge biological preparation fertilizers and the like into the turned and buried straws. The operation of stubble cleaning, straw collection, burying, pressing and the like can be finished at one time in the working process, and the straw returning operation in dry fields can be realized, and the effects of deep straw burying and returning, soil fertility improvement and soil organic matter enhancement can also be achieved. The machine tool developed according to the invention realizes combined operation, effectively improves the utilization rate of large and medium tractors, and achieves the agricultural technical problems of corn large-ridge double-row planting mode, straw deep burying, returning to the field, deep ploughing, soil improvement, interval farming, straw returning to the field and the like.
2. The straw collecting device is formed by symmetrically connecting two groups of spiral rollers through a connecting shaft, the connecting shaft is fixed on a rack through a connecting plate, the two groups of spiral roller collecting devices are symmetrically arranged, blade knives are welded on the spiral rollers at an inclination angle of 10-20 degrees, 16 blade knives are arranged on each group of spiral rollers, 8 groups of left-end blade knives and 8 groups of right-end blade knives are arranged on the spiral rollers in a staggered mode, the connecting position has an overlapping amount of 1-3mm, cutting missing and blocking are prevented, and straws, weeds and the like can be collected to the middle of a ridge within 60cm from two sides after being cut up.
3. The rotary spade blade and the soil supporting plate of the burying device are uniformly arranged on the rotary shaft barrel at intervals along the radial direction. The number of the rotary shovel blades is 2, wherein 3 rotary shovel blades close to one end are bent towards the inner side and arranged along the same direction; the rotatory spade blade of another row is 6 along rotatory shaft barrel circumference equipartitions, and wherein 3 rotatory spade blades are inside side bending, and three other rotatory spade blades are outside side bending. When the rotary shovel blade cuts the clod soil, the soil supporting plate can support the clod block, the cut clod soil is turned over and falls down to bury straws, weeds and the like deeply into the soil, and meanwhile, the pesticide discharger of the pesticide box device discharges biological preparation fertilizer and the like into the buried straws, so that the straws are rotted, and the soil fertilizer is increased.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic structural view of the straw collecting device in FIG. 1.
Fig. 2 (a) is a partially enlarged schematic view of fig. 2.
Fig. 2 (b) is an expanded plan view of fig. 2 (a).
Fig. 3 is a schematic view of the land wheel apparatus of fig. 1.
Fig. 4 is a schematic view of the press apparatus of fig. 1.
Fig. 5 is a schematic view of the structure of the covering device of fig. 1.
Fig. 6 is a schematic diagram of the buried device structure of fig. 1.
Fig. 7 is a left side view of fig. 6.
Fig. 8 is a schematic configuration diagram of the medicine-box apparatus in fig. 1.
In the figure: 1. a machine frame, a plurality of guide rails,
2. the collecting device comprises: 21. the device comprises a spiral roller, 22 connecting plates, 23U-shaped bolts, 24 flat keys and 25 connecting shafts;
3. land wheel device: 31. a land wheel, 32 intermediate shafts, 33 connecting plates, 34 diamond seat bearings;
4. suppression device: 41 connecting rods, 42 bearing seats, 43 compacting machines, 44 connecting beams and 45 connecting plates;
5. earthing device: 51. the soil covering machine comprises a fixing plate, a cylinder 52, a connecting plate 53, a spring 54, a transverse plate 55, a soil covering connecting rod 56, a soil covering plate 57 and a convex connecting plate 58;
6. burying the device: 61. the soil supporting plate, the tool apron, the rotating shaft cylinder, the blade connecting plate and the blade rotating shovel are respectively 62, 63, 64 and 65;
7. a medicine box device: 71 medicine boxes, 72 medicine discharging devices, 73 medicine box fixing plates.
8. A transmission device; 9. a gearbox; 10. hanging upwards; 11. and hanging the lower part.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
Example (b): as shown in figure 1, the large-ridge double-row straw returning machine comprises a frame 1, a gearbox 9, a transmission device 8, a straw collecting device 2, a medicine box device 7, a burying device 6, a soil covering device 5 and a pressing device 4, wherein the straw collecting device 2, the medicine box device 7, the burying device 6, the soil covering device 5 and the pressing device 4 are installed on the frame 1 and sequentially arranged from the front end to the rear end of work, the straw collecting device 2 is formed by symmetrically connecting two groups of spiral rollers 21 through a connecting shaft 25, the connecting shaft 25 is fixed on the frame 1 through a connecting plate 22, each group of spiral rollers 21 is formed by symmetrically and obliquely arranging two groups of blades, and straws and weeds are collected from two sides to the middle after being chopped; the rotary shaft barrel 63 of the burying device 6 is connected with an output shaft of the gearbox 9 through a transmission device 8, the rotary shaft barrel 63 is in transmission connection with the straw collecting device 2, the rotary shovel blade 65 of the burying device 6 is arranged in a furrow, and the medicine discharger 72 of the medicine box device 7 is arranged behind the collecting device 2.
The rotary shaft barrel 63 of the burying device 6 is connected with an output shaft of the gearbox 9 through a transmission device, the rotary shaft barrel 63 is in transmission connection with the straw collecting device 2, a rotary shovel blade of the burying device 6 is arranged in a furrow, and the pesticide discharger 72 of the pesticide box device 7 is arranged on the rear side of the collecting device 2, so that biological preparation fertilizers and the like can be discharged into the turned and buried straws timely and uniformly, and the straw rot and soil fertilizer increase are facilitated.
As shown in figure 2, each group of spiral rollers 21 of the straw collecting device is formed by symmetrically and obliquely arranging two groups of blades, each group is 8, the two groups of blades are arranged in a spiral shape at equal intervals in a staggered mode, and the blades can cut straws, weeds and the like and convey the straws, the weeds and the like from two ends to the middle to be collected in 60cm between ridges. The included angle alpha between the blades and the horizontal line is 10-20 degrees, and the selected angle alpha is 10 degrees in the embodiment, so that the chopped straws, weeds and the like can be conveyed conveniently. The blades are provided with cutting edges, the cutting edge angle is 14-20 degrees, the cutting angle is 19 degrees in the embodiment, the ground straws, weeds and the like are cut, the straws are rapidly rotted after being deeply buried, and soil organic matters are improved; the overlapping amount of the staggered joint of the two groups of blades is 1-3mm, so that the missed cutting and the blockage are prevented.
As shown in fig. 6 and 7, the burying device includes a rotating shaft 63, rotating shovel blades 65 and a soil supporting plate 61, at least two rows of rotating shovel blades 65 and soil supporting plates 61 are axially arranged along the rotating shaft 63, the rotating shovel blades 65 and the soil supporting plates 61 are arranged at intervals, the rotating shovel blades 65 are positioned on one side of the rotating shaft 63, the soil supporting plates 61 are positioned on the other side of the rotating shaft 63, the radius of the soil supporting plates 61 is smaller than that of the rotating shovel blades 65, and the radius difference is the tilling depth height, that is: when the spade blade 65 is rotated to cut the upturned soil, the soil supporting plate 61 just drags the upper end of the upturned soil, so that the cut upturned soil can be overturned to fall down, and straws, weeds and the like can be buried in the soil.
When the rotary shovel blades 65 are arranged in two rows, three rotary shovel blades 65 close to one row at the end part are uniformly distributed along the circumference of the rotary shaft cylinder 63, bent towards the inner side and arranged along the same direction; six rotary shovel blades 65 of the other row are uniformly distributed along the circumference of the rotary shaft barrel 63, wherein three rotary shovel blades are bent inwards, and the other three rotary shovel blades are bent outwards.
As shown in fig. 7, the mounting angle beta of the rotary shovel blade 65 is 72 deg. -81 deg., in this case 72 deg.. The radius of the soil supporting plate and the rotary shovel blade is set according to actual requirements, in the example, the rotation radius of the soil supporting plate is 300mm, the rotation radius of the rotary shovel blade is 400mm, three blades are arranged in each row and are uniformly distributed along the circumference, and the phase angle gamma between the soil supporting plate and the rotary shovel blade 65 is 60-65 degrees. I.e. a clockwise mounting angle gamma with respect to the rotary shovel blade 65, which in this example is 62 deg.. When the clod soil scraper works, the rotary shovel blade 65 cuts the clod soil, and the clod soil is carried to the back by the soil supporting plate 61 and the rotary shovel blade 65. When the shovel blade 65 is rotated to lift the upturned soil, the upturned soil is separated from the soil supporting plate 61 and slides down.
The spiral roller 21 of the embodiment has the rotation radius of 150mm and the pitch of about 11cm, and can collect straw with the maximum thickness of 50 mm. The single helical roll and its developed view are shown in fig. 2 (a), (b). The spiral roller 21 of the collecting device 2 is connected with the rotary shaft barrel 63 of the burying device 6 through a transmission chain, power is transmitted to the spiral roller 21 from the rotary shaft barrel 63 through a chain wheel to drive the spiral roller 21 to rotate, and the rotating speed for collecting straws is 32r/min.
As shown in fig. 3, the land wheel device 3 is of a conventional structure, and two land wheels thereon are respectively fixed on two sides of the frame 1 through connecting plates 33, located behind the burying device 6 and in front of the soil covering device 5, and play a role in supporting walking.
As shown in fig. 4, the compacting device 4 is of a conventional structure, and is formed by welding a compacting device 43 to the rearmost end of the frame 1 through a connecting member, wherein the compacting device is composed of a connecting rod 41, a bearing seat 42, a compacting device 43, a connecting beam 44 and a connecting plate 45. The roller 43 is formed by arranging a plurality of rollers on the rotating shaft in parallel, and is used for compacting the soil after loosening the soil and covering the soil to reduce the evaporation of soil moisture, the diameter of each roller is 200mm, and the rolling range is 600mm.
As shown in fig. 5, the soil covering device 5 is fixed on the rear beam of the frame 1 through a fixing plate 51, and comprises a connecting plate 53 connected with the fixing plate, a soil covering device connected with the connecting plate 53, the soil covering device comprises transverse plates 55 symmetrically connected to two sides of the connecting plate 53 through pin shafts, a supporting plate is connected between the two transverse plates 55, a fixing frame is connected to the connecting plate 53, one end of a round rod sleeved with a spring 54 is connected to the supporting plate, the other end of the round rod extends out of a through hole of the fixing frame, the round rod moves up and down along the through hole under the action of spring force, the end parts of the two transverse plates 55 are connected with a soil covering connecting rod 56, and two ends of the soil covering connecting rod 56 are symmetrically connected with soil covering plates 57 through convex connecting plates 58. The covering device of the covering device 5 is automatically adjusted along with the height of the ground through a spring 55, and the covering range is about 600mm.
As shown in fig. 8, the medicine-box device 7 is configured such that the medicine boxes 71 and the medicine ejectors 72 are connected to the frame 1 via the medicine-box fixing plate 72, and the medicine ejectors 72 connected to the medicine boxes 71 are placed behind the spiral rollers 21 of the collecting device 2. The pesticide box 71 is filled with biological agents, which is beneficial to the collection of the rotten straws after deep burying.
The straw-mulching machine is connected with a tractor through an upper suspension 10 and a lower suspension 11, the power of the tractor is transmitted to a machine tool gearbox 9 through a universal coupling connected with a power output shaft of the tractor, the gearbox 9 drives a rotary shaft barrel 63 connected with the rotary shaft barrel to rotate, so that a screw roller 21 connected with the rotary shaft barrel 63 is driven to rotate, and after the straw is collected by a collecting device 2, a pesticide discharger 72 of a pesticide box 71 sprays pesticide on the straw, so that the straw is accelerated to rot, and the straw is covered with soil and buried by a soil covering device 5. This machine is selected to be used with the wheeled tractor that power is greater than 25kW is supporting, selects for use I type three point suspension. Machine external dimensions (length × width × height): 2400mm multiplied by 1260mm multiplied by 1190mm, the straw collection width is 1200mm, the straw deep burying width is 600mm, and the deep scarification depth is 25cm.
The rotating speed of a power output shaft of the tractor is 540r/min, the rotating speed of a rotating shovel shaft is 65r/min after the speed is reduced by the gearbox, so that the gearbox adopts a group of conical gears for speed change, the transmission ratio is 1.8, the transmission ratio of the gearbox is 4.6, and power is transmitted to the rotating shaft barrel after the speed is reduced; the rotating speed of the collecting device is 32r/min, and the power is transmitted by the rotary shovel shaft through the chain wheel. The advancing speed of the straw returning machine is 2.34km/h.
Example 2: the difference between this example and example 1 is: in the embodiment, the included angle alpha between the spiral roller blade and the horizontal line is 15 degrees; the blade is provided with a cutting edge with an edge angle of 14 degrees. The mounting angle beta of the rotating shovel blade 65 is 81 deg.. The phase angle gamma at which the blade of the earth holding plate is mounted with the rotating shovel blade 65 is 60 deg..
Example 3: the difference between this example and example 1 is: in the example, the included angle alpha between the spiral roller blade and the horizontal line is 18 degrees; the blade is provided with a cutting edge with an edge angle of 20 degrees. The mounting angle beta of the rotary shovel blade 65 is 75 deg.. The phase angle gamma at which the blade of the earth holding plate is mounted with the rotating shovel blade 65 is 50 deg..
Claims (8)
1. A big ridge double row straw buries still field machine deeply which characterized in that: the straw collection device is formed by symmetrically connecting two groups of spiral rollers through connecting shafts, the connecting shafts are fixed on the rack through connecting plates, each group of spiral rollers is formed by symmetrically and obliquely arranging two groups of blades, the two groups of blades are arranged in a spiral shape at staggered equidistance, the two groups of blades are conveyed to the middle from two ends to the middle and collected in 60cm between ridges, and the straws and weeds are collected from two sides to the middle after being chopped; burying device include rotary shaft section of thick bamboo, rotatory spade blade and hold in the palm the native board, follow rotary shaft section of thick bamboo axial sets up two rows at least rotatory spade blades and holds in the palm the native board, rotatory spade blade and holding in the palm the native board interval setting, rotatory spade blade is located rotary shaft section of thick bamboo one side, holds in the palm the native board and is located rotary shaft section of thick bamboo opposite side, holds in the palm the radius that the radius of native board is less than rotatory spade blade, the radius difference is the depth of ploughing height, promptly: when the spade blade is rotated to cut the upturned soil, the soil supporting plate just drags the upper end of the upturned soil; the rotary shaft cylinder of the burying device is connected with an output shaft of the gearbox through a transmission device, the rotary shaft cylinder is in transmission connection with the straw collecting device, a rotary spade blade of the burying device is arranged in the furrow, and a medicine discharging device of the medicine box device is arranged behind the collecting device.
2. The large-ridge double-row straw deep-burying returning machine as claimed in claim 1, characterized in that: the included angle alpha between the blades and the horizontal line is 10-20 degrees.
3. The large-ridge double-row straw deep-burying returning machine as claimed in claim 1, characterized in that: the overlapping amount of the staggered joints of the two groups of blades is 1-3 mm.
4. The large-ridge double-row straw deep-burying returning machine as claimed in claim 1, characterized in that: the blade is provided with a cutting edge, and the cutting edge angle is 14-20 degrees.
5. The large-ridge double-row straw deep-burying returning machine as claimed in claim 1, characterized in that: when the rotary shovel blades are arranged in two rows, three rotary shovel blades close to one row of the end parts are uniformly distributed along the circumference of the rotary shaft cylinder, bent towards the inner side and arranged along the same direction; the rotatory spade blade of another row is six and follows the circumference equipartition of rotatory shaft section of thick bamboo, and wherein three rotatory spade blade is inside side bending, and three other rotatory spade blade is outside side bending.
6. The large-ridge double-row straw deep-burying returning machine as claimed in claim 5, wherein: the mounting angle beta of the rotary shovel blade is 72-81 degrees.
7. The large-ridge double-row straw deep-burying returning machine as claimed in claim 1, characterized in that: the phase angle gamma of the soil supporting plate and the blade is 60-65 degrees.
8. The large-ridge double-row straw deep-burying returning machine as claimed in claim 1, characterized in that: earthing device pass through the fixed plate installation and fix on the back beam of frame, include the connecting plate of being connected with the fixed plate, the covering device of being connected with the connecting plate, the covering device includes the diaphragm of connecting in the connecting plate both sides through round pin axle symmetry, be connected with the backup pad between two diaphragms, be connected with the mount on the connecting plate, the round bar one end that the cover was equipped with the spring is connected in the backup pad, the through-hole of mount is stretched out to the other end, along through-hole up-and-down motion under the effect of spring force, two diaphragm end connection earthing connecting rods, pass through convex connecting plate symmetric connection earthing plate at earthing connecting rod both ends.
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| CN201710242908.7A CN106954431B (en) | 2017-04-14 | 2017-04-14 | Large-ridge double-row straw deep-burying returning machine |
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| CN201710242908.7A CN106954431B (en) | 2017-04-14 | 2017-04-14 | Large-ridge double-row straw deep-burying returning machine |
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| CN106954431B true CN106954431B (en) | 2023-03-03 |
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| CN108012599B (en) * | 2018-02-02 | 2024-03-26 | 刘泉德 | Straw returning deep turning device |
| CN108781563A (en) * | 2018-05-14 | 2018-11-13 | 内蒙古农业大学 | A kind of corn novel straw, which is gathered, sprays bacterium earthing chopper |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AUPR638301A0 (en) * | 2001-07-13 | 2001-08-09 | Innotech Pty Ltd | Hay conditioner |
| CN201869577U (en) * | 2010-11-08 | 2011-06-22 | 甘肃农业大学 | Smashing and returning device for ridge crop straws |
| CN103416125B (en) * | 2013-09-03 | 2015-06-03 | 内蒙古农业大学 | Organic fertilizer deep scarification applying machine |
| CN104303717B (en) * | 2014-08-29 | 2016-04-27 | 华中农业大学 | Combined straw is field rotary tillage rotor also |
| CN105659955A (en) * | 2016-03-22 | 2016-06-15 | 甘肃武威兴旺农机制造有限公司 | Stubble cleaning, rotary tillage, fertilization and land preparation combined machine |
| CN206835680U (en) * | 2017-04-14 | 2018-01-05 | 沈阳农业大学 | A kind of large-ridge double-row straw deep-burying and returning machine |
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