CN107258206A - The cutter device of two-freedom sugar-cane cutting machine - Google Patents
The cutter device of two-freedom sugar-cane cutting machine Download PDFInfo
- Publication number
- CN107258206A CN107258206A CN201710676265.7A CN201710676265A CN107258206A CN 107258206 A CN107258206 A CN 107258206A CN 201710676265 A CN201710676265 A CN 201710676265A CN 107258206 A CN107258206 A CN 107258206A
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- China
- Prior art keywords
- cutterhead
- outer sleeve
- drive rod
- installation axle
- cutting disc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 240000000111 Saccharum officinarum Species 0.000 title claims abstract description 33
- 235000007201 Saccharum officinarum Nutrition 0.000 title claims abstract description 33
- 238000009434 installation Methods 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 230000033001 locomotion Effects 0.000 claims abstract description 11
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000003245 working effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 3
- 238000003306 harvesting Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
- A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
- A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
- A01D34/73—Cutting apparatus
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
- A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
- A01D34/74—Cutting-height adjustment
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D45/00—Harvesting of standing crops
- A01D45/10—Harvesting of standing crops of sugar cane
Abstract
The invention discloses a kind of cutter device of two-freedom sugar-cane cutting machine, including feeding roller, cutting disc, cutterhead rotating shaft, cutting disc motor, outer sleeve and the fixed plate of two pieces of parallel settings, feeding roller is arranged between two pieces of fixed plates by rotating shaft, one end of cutterhead rotating shaft be fixedly mounted with the cutting disc, its other end penetrate in outer sleeve and with the cutterhead installation axle and five-bar mechanism for lifting cutting disc of the cutting disc motor connection, in addition to setting parallel with feeding roller；Five-bar mechanism is 2 and is separately mounted on the outside wall body of fixed plate.The present invention is lifted by the five-bar mechanism of setting for different terrain to the outer sleeve and cutting disc that are fixed on below cutterhead installation axle, and the scope of application wider, stability is high, simple and compact structure；Change the level interval between two cutting dives by being arranged on the governor motion in cutterhead installation axle simultaneously, the harvest of the sugarcane of different plantation line spaces can be met, it is practical.
Description
Technical field
The present invention relates to a kind of cutter device, and in particular to a kind of cutter device of two-freedom sugar-cane cutting machine, belongs to
Agricultural machinery equipment technical field.
Background technology
Sugar-cane cutting machine is applied as a kind of large-scale and bulky farm machinery can effectively improve sugarcane in flat-bottomed land
Efficiency of crop, significantly mitigate peasant labor intensity.But China is generally hills landforms, especially as cane planting area
South, it is difficult to directly used large-scale sugar-cane cutting machine.But in operation, height is adapted to by lifting cutter device
Uneven hills landforms.Filled due to cutting off the Cutting tool installation manner of sugarcane on sugarcane cutter device, it is necessary to exactly cut sugarcane
Put while be promoted to correct position, also to ensure the stationarity of cutter, so just can ensure that the quality of sugarcane root cutting.
In the prior art, the cutter device on cane harvesting machine is generally divided into Single disc basecutter and dual-disc cutter,
Such as Chinese invention patent application of Application No. 200910039337.2, discloses a kind of sugarcane cutter device, including left and right
Two groups of double helix cutters, two groups of double helix cutters include cutterhead, cutter, two spiral round steel, rotary sleeve and gear-box, rotation
Rotating shaft set one end is connected with cutterhead, and the other end is connected with gear-box, and cutter is arranged on the periphery of cutterhead, two spiral round steel
One end be fixed on cutterhead, the other end is fixedly connected with rotary sleeve.Two groups of double helix cutters that it is designed are in gear-box
Driving is lower to carry out sugarcane cut-out work, although this kind of cutter device can soon carry out cutting action, throws away and lacks in the presence of following
Fall into：
1) needed for different landform, it is impossible to lift the height of cutting tool, and the stability of cutting tool is poor；
2) its gear-box used is as cutter driving device, easily occurs being short of power because of the abrasion of machinery, is driven torsion
The problem of square is small, so as to cause that the cutting speed of cutting tool is slow, sugarcane cut quality is poor；
3) two groups of double helix cutters set by are fixed installation, it is impossible to adjust knife for the sugarcanes of different plantation line spaces
The spacing of disk, it is poor for applicability.
The content of the invention
For above-mentioned deficiency, the technical problems to be solved by the invention be to provide a kind of simple in construction, cutting power foot,
The cutter device of the quick and stable two-freedom sugar-cane cutting machine of cutting tool is cut, it can be directed to different landform
Multiple degrees of freedom adjusts the height of cutting tool.
To achieve the above object, the present invention is achieved through the following technical solutions：
The cutter device of two-freedom sugar-cane cutting machine, including it is feeding roller, cutting disc, cutterhead rotating shaft, cutting disc motor, outer
Sleeve and the fixed plate of two pieces of parallel settings, the feeding roller are arranged between two pieces of fixed plates and the feeding by rotating shaft
Roller can rotate around the axis, one end of the cutterhead rotating shaft be fixedly mounted with the cutting disc, its other end penetrate in outer sleeve and with it is described
Cutting disc motor connection, includes the cutterhead installation axle and five connecting rod machines for lifting cutting disc of setting parallel with feeding roller
Structure,
The five-bar mechanism is 2 and is separately mounted on the outside wall body of fixed plate that the five-bar mechanism includes
Drive device, frame, upper drive rod, lower drive rod, upper connecting rod and lower link, the frame are vertically fixed on fixed plate
Outside wall body on, the frame, upper drive rod, upper connecting rod, lower link and lower drive rod by bearing pin in the counterclockwise direction according to
Secondary head and the tail connection, the upper drive rod and lower drive rod are connected with drive device；
The end at the cutterhead installation axle two ends, which is respectively perpendicular, to be penetrated each lower link and is fixed on lower link, the overcoat
The vertical one end located at the lower section of cutterhead installation axle and outer sleeve of cylinder is fixedly connected with cutterhead installation axle.
In such scheme, the drive device can drive dress for the first driving means and second of two synchronous workings
Put, first driving means are connected with upper drive rod, the second drive device is connected with lower drive rod.
In such scheme, further, first driving means and the second drive device are servomotor, and one of them is watched
The output shaft for taking motor is connected with upper drive rod by key, the output shaft of another servomotor is connected with lower drive rod by key
Connect.
In such scheme, first driving means and the second drive device can also be specifically hydraulic cylinder, one of liquid
One end hinge of cylinder pressure is in frame, its other end hinge is mounted on upper drive rod, and one end hinge of another hydraulic cylinder is mounted in frame
Upper, its other end hinge is on lower drive rod.
In such scheme, when the cutting disc is stationary structure, the outer sleeve can be fixed on knife by fastener
The lower section of disk installation axle, the fastener includes bolt and the nut being used in combination with bolt, is opened up in cutterhead installation axle
There is the bolt hole penetrated for the bolt.
In such scheme, the outer sleeve and cutting disc are two, in order to adjust the spacing of two cutting dives, often
One outer sleeve can be located at the lower section of cutterhead installation axle by governor motion, and be offered in cutterhead installation axle for installing tune
Save the groove of mechanism.
Further, the governor motion sets threaded screw mandrel, the screw mandrel including lead screw motor, movable block and surface
In groove and one end of screw mandrel is connected with lead screw motor, the movable block is installed on screw mandrel and can be along the spiral shell on screw mandrel
Line is moved horizontally, and a through hole is offered on movable block, and the upper end of the outer sleeve penetrates in through hole and is fixed on movement
On block.
Beneficial effects of the present invention are：
1) five-bar mechanism of the invention by setting, and by driving rotation of the five-bar mechanism in torque direction,
So that the cutterhead installation axle on five-bar mechanism is rotated up or down, so as to being fixed on below cutterhead installation axle
Outer sleeve and cutting disc play a part of being lifted or declined, so as to lift cutting disc for different terrain, the scope of application is wider；
Five-bar mechanism is integrally fixed at for installing the cutterhead installation axle of cutting disc simultaneously, whole device stability is high, structure letter
It is single and compact.
2) as the five-bar mechanism of cutting disc lifting device, it can be made by two servomotors or two hydraulic cylinders
For drive device, and it is driven as the cutting disc of cutting tool individually by cutting disc motor so that the present apparatus both can be with
Adjust the height of cutting disc, it can also be ensured that power when cutting disc is cut, driving torque is big, advantageously reduce fast and stable
The cutting head breaking rate and cutting loss late of sugarcane.
3) when the cutting disc and outer sleeve are 2, the governor motion of the invention by being arranged in cutterhead installation axle
To change the level interval between two cutting dives, therefore the sugarcane cutting work of different plantation line spaces can be met, had
It is simple in construction, the characteristics of applicability is wide.
Brief description of the drawings
When Fig. 1 is using servomotor as drive device, a kind of knot of the cutter device of this two-freedom sugar-cane cutting machine
Structure schematic diagram.
When Fig. 2 is using hydraulic cylinder as drive device, a kind of structure of the cutter device of this two-freedom sugar-cane cutting machine
Schematic diagram.
Fig. 3 is that the spacing of cutting disc described in Fig. 1 can timing, one kind of the cutter device of this two-freedom sugar-cane cutting machine
Structural representation.
Fig. 4 is the structural representation of the cutterhead installation axle.
Fig. 5 is another structural representation of the cutterhead installation axle.
In figure marked as：1st, fixed plate；2nd, upper feeding roller；3rd, lower feeding roller；4th, cutterhead installation axle；5th, outer sleeve；6th, circle
Dise knife；7th, upper drive rod；8-1, first driving means；8-2, the second drive device；9th, frame；10th, lower drive rod；11st, lower company
Bar；12nd, upper connecting rod；13rd, lead screw motor；14th, screw mandrel；15th, movable block；16th, bolt；17th, bolt hole；18th, groove.
Embodiment
Embodiment 1
As shown in Figure 1, Figure 3, the cutter device of two-freedom sugar-cane cutting machine, including feeding roller, cutting disc 6, cutterhead turn
Axle, cutting disc motor, outer sleeve 5 and the fixed plate 1 of two pieces of parallel settings.The feeding roller is arranged on two pieces admittedly by rotating shaft
Between fixed board 1 and the feeding roller can rotate around the axis.In the present embodiment, the feeding roller includes what is installed successively from top to bottom
Upper feeding roller 2 and lower feeding roller 3.One end of the cutterhead rotating shaft is fixedly mounted with the cutting disc 6, its other end and penetrated in outer sleeve 5
And with the cutting disc motor connection.
With prior art except that, this cutter device also includes the cutterhead installation axle 4 of setting parallel with feeding roller
With the five-bar mechanism for lifting cutting disc 6.The five-bar mechanism is 2 and is separately mounted to the lateral wall of fixed plate 1
On body, the five-bar mechanism includes drive device, frame 9, upper drive rod 7, lower drive rod 10, upper connecting rod 12 and lower link
11, the frame 9 is vertically fixed on the outside wall body of fixed plate 1, the frame 9, upper drive rod 7, upper connecting rod 12,
Head and the tail are connected successively in the counterclockwise direction by bearing pin for lower link 11 and lower drive rod 10, the upper drive rod 7 and lower drive rod
10 are connected with drive device.Frame 9, upper drive rod 7, upper connecting rod 12, lower link 11 and lower drive rod after being hinged from beginning to end
10 constitute pentagonal configuration, and the pentagonal configuration above drive rod 7 is used as second as the first driving torque, following drive rod 10
Driving torque, under the driving of drive device, upper drive rod 7 and lower drive rod 10 drive the cutterhead peace being arranged on lower link 11
Dress axle 4 is rotated up or down.
The end at the two ends of cutterhead installation axle 4, which is respectively perpendicular, to be penetrated each lower link 11 and is fixed on lower link 11, institute
The one end of outer sleeve 5 vertically located at the lower section of cutterhead installation axle 4 and outer sleeve 5 is stated to be fixedly connected with cutterhead installation axle 4.So that circle
Dise knife 6 can synchronize action with the rotation of cutterhead installation axle 4.
Drive device for driving five-bar mechanism, the first driving means 8-1 and the of specially two synchronous workings
Two drive device 8-2.In the present embodiment, have the advantages that controllability is good, stable, fault rate is low based on servomotor,
The first driving means 8-1 and the second drive device 8-2 is servomotor, the output shaft of one of servomotor with it is upper
Drive rod 7 is connected by key, the output shaft of another servomotor is connected with lower drive rod 10 by key.
As shown in figure 5, the outer sleeve 5 is fixed on the lower section of cutterhead installation axle 4 by fastener, i.e., described cutting disc 6
Can be one, or two, and when cutting disc 6 is two, both spacing are fixed, can not adjust.This implementation
In example, the fastener is specially bolt 16 and the nut being used in combination with bolt 16, and correspondence is opened in cutterhead installation axle 4
Provided with bolt hole 17.
As shown in figure 4, the outer sleeve 5 and cutting disc 6 are two.In order to realize the spacing of two cutting dives 6 of regulation,
Each outer sleeve 5 is located at the lower section of cutterhead installation axle 4 particular by governor motion, and is offered in cutterhead installation axle 4
Groove 18 for installing governor motion.Further, the governor motion is set including lead screw motor 13, movable block 15 and surface
Threaded screw mandrel 14.The screw mandrel 14 is in the groove 18 and one end of screw mandrel 14 is connected with lead screw motor, the movable block
15 are installed on screw mandrel 14 and can be moved horizontally along wire rod thread, and a through hole, the outer sleeve 5 are offered on movable block 15
Upper end penetrate in through hole and be fixed on movable block 15.When in use, lead screw motor is opened, screw mandrel 14 is rotated, so as to drive
Movable block 15 on screw mandrel 14 is moved horizontally.Due to outer sleeve 5 with movable block 15 to be fixedly connected, when movable block 15 enters
When row is moved horizontally, outer sleeve 5 and dise knife disk 6 will be moved horizontally together, so that the gap between two cutting dives 6
Change.
The present invention is operationally：
1) drive rod 7 in first driving means 8-1 drivings, the lower drive rod 10 of the second drive device 8-2 drivings, so as to drive
Cutterhead installation axle 4 is relatively rotated, and outer sleeve 5 and the entirety of dise knife disk 6 is carried out rising or falling for height, when cutting disc 6 reaches
During the Terrain Elevation specified, first, second drive device (8-1,8-2) is closed, cutterhead can be installed by five-bar mechanism
Axle 4 is positioned in set height；
2) then start cutting disc motor, driven disc 6 is around cutterhead axis of rotation, you can fly-cutting sugarcane.
Embodiment 2
The cutter device of two-freedom sugar-cane cutting machine, as shown in Fig. 2 with embodiment 1 except that：For driving five
First, second drive device (8-1,8-2) of linkage, is specially hydraulic cylinder, one end hinge of one of hydraulic cylinder
In frame 9, its other end hinge on the upper drive rod 7, one end hinge of another hydraulic cylinder is in frame 9, its is another
End hinge is on lower drive rod 10.From drive device of the hydraulic cylinder as five-bar mechanism, the upper and lower drive of drive is on the one hand played
While lever (7,10) works, moreover it is possible to simplify the structure of equipment；And the driving torque of another aspect hydraulic cylinder is big, it is possible to increase
The expanded reach of five-bar mechanism.
Explanation embodiments of the present invention are these are only, are not intended to limit the invention, for those skilled in the art
For, within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc. should be included in this hair
Within bright protection domain.
Claims (7)
1. the cutter device of two-freedom sugar-cane cutting machine, including feeding roller, cutting disc (6), cutterhead rotating shaft (4), cutting disc electricity
The fixed plate (1) of machine, outer sleeve (5) and two pieces of parallel settings, the feeding roller is arranged on two pieces of fixed plates (1) by rotating shaft
Between and the feeding roller can rotate around the axis, one end of the cutterhead rotating shaft is fixedly mounted with the cutting disc (6), its other end and penetrated
In outer sleeve (5) and with the cutting disc motor connection, it is characterised in that：Also the cutterhead including setting parallel with feeding roller is pacified
Axle (4) and the five-bar mechanism for lifting cutting disc (6) are filled,
The five-bar mechanism is 2 and is separately mounted on the outside wall body of fixed plate (1) that the five-bar mechanism includes
Drive device, frame (9), upper drive rod (7), lower drive rod (10), upper connecting rod (12) and lower link (11), the frame (9)
On the outside wall body for being vertically fixed on fixed plate (1), the frame (9), upper drive rod (7), upper connecting rod (12), lower company
Head and the tail are connected successively in the counterclockwise direction by bearing pin for bar (11) and lower drive rod (10), the upper drive rod (7) and lower driving
Bar (10) is connected with drive device；
The end at cutterhead installation axle (4) two ends, which is respectively perpendicular, to be penetrated each lower link (11) and is fixed on lower link (11),
The outer sleeve (5) is fixed located at the lower section of cutterhead installation axle (4) and one end of outer sleeve (5) and cutterhead installation axle (4) vertically
Connection.
2. the cutter device of two-freedom sugar-cane cutting machine according to claim 1, it is characterised in that：The drive device
For the first driving means 8-1 and the second drive device 8-2, first driving means 8-1 and upper drive rod (7) of two synchronous workings
Connection, the second drive device 8-2 is connected with lower drive rod (10).
3. the cutter device of two-freedom sugar-cane cutting machine according to claim 2, it is characterised in that：First driving means
8-1 and the second drive device 8-2 is servomotor, and the output shaft of one of servomotor passes through key with upper drive rod (7)
Connection, the output shaft of another servomotor are connected with lower drive rod (10) by key.
4. the cutter device of two-freedom sugar-cane cutting machine according to claim 2, it is characterised in that：First driving means
8-1 and the second drive device 8-2 is hydraulic cylinder, and one end hinge of one of hydraulic cylinder is in frame (9), its other end hinge
On upper drive rod (7), one end of another hydraulic cylinder hinge is in frame (9), its other end hinge is mounted in lower drive rod
(10) on.
5. the cutter device of two-freedom sugar-cane cutting machine according to claim 1, it is characterised in that：The outer sleeve
(5) lower section of cutterhead installation axle (4) is fixed on by fastener, the fastener includes bolt (16) and matched with bolt (16)
The nut used is closed, the bolt hole (17) penetrated for the bolt (16) is offered in cutterhead installation axle (4).
6. the cutter device of two-freedom sugar-cane cutting machine according to claim 1, it is characterised in that：The outer sleeve
(5) and cutting disc (6) is two, each outer sleeve (5) is located at the lower section of cutterhead installation axle (4) by governor motion, and
The groove (18) for installing governor motion is offered in cutterhead installation axle (4).
7. the cutter device of two-freedom sugar-cane cutting machine according to claim 6, it is characterised in that：The governor motion
Threaded screw mandrel (14) is set including lead screw motor (13), movable block (15) and surface, the screw mandrel (14) is located at groove (18)
One end of interior and screw mandrel (14) is connected with lead screw motor (13), and the movable block (15) is installed on screw mandrel (14) and can be along silk
Screw thread on bar (14) is moved horizontally, and a through hole is offered on movable block (15), and the upper end of the outer sleeve (5) is penetrated
Through hole is interior and is fixed on movable block (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710676265.7A CN107258206A (en) | 2017-08-09 | 2017-08-09 | The cutter device of two-freedom sugar-cane cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710676265.7A CN107258206A (en) | 2017-08-09 | 2017-08-09 | The cutter device of two-freedom sugar-cane cutting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107258206A true CN107258206A (en) | 2017-10-20 |
Family
ID=60077731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710676265.7A Pending CN107258206A (en) | 2017-08-09 | 2017-08-09 | The cutter device of two-freedom sugar-cane cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107258206A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112544206A (en) * | 2020-11-27 | 2021-03-26 | 江苏科技大学 | Height adjusting system and method for cutter head of hand-push type mower |
| CN113228933A (en) * | 2021-06-10 | 2021-08-10 | 广西大学 | Sugarcane harvester blade disc profiling mechanism |
| CN114391363A (en) * | 2021-12-20 | 2022-04-26 | 合肥茗满天下茶叶有限公司 | Agricultural is with equidistance adjustable weeding equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112544206A (en) * | 2020-11-27 | 2021-03-26 | 江苏科技大学 | Height adjusting system and method for cutter head of hand-push type mower |
| CN112544206B (en) * | 2020-11-27 | 2022-01-28 | 江苏科技大学 | Height adjusting system and method for cutter head of hand-push type mower |
| CN113228933A (en) * | 2021-06-10 | 2021-08-10 | 广西大学 | Sugarcane harvester blade disc profiling mechanism |
| CN114391363A (en) * | 2021-12-20 | 2022-04-26 | 合肥茗满天下茶叶有限公司 | Agricultural is with equidistance adjustable weeding equipment |
| CN114391363B (en) * | 2021-12-20 | 2023-09-15 | 陕西秦巴红叶生态农林开发有限公司 | Equidistant adjustable weeding equipment for agriculture |
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Application publication date: 20171020 |