CN101999271A - Stalk chopping and pickup square baler - Google Patents
Stalk chopping and pickup square baler Download PDFInfo
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- CN101999271A CN101999271A CN 201010299956 CN201010299956A CN101999271A CN 101999271 A CN101999271 A CN 101999271A CN 201010299956 CN201010299956 CN 201010299956 CN 201010299956 A CN201010299956 A CN 201010299956A CN 101999271 A CN101999271 A CN 101999271A
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- cutting
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Abstract
The invention discloses a stalk chopping and pickup square baler which is arranged right behind a tractor. The square baler comprises a cutting and grinding mechanism and a compressing and baling mechanism, wherein the compressing and baling mechanism is arranged above the cutting and grinding mechanism; a pickup transport mechanism is arranged between the cutting and grinding mechanism and the compressing and baling mechanism; the pickup transport mechanism contains a pickup cavity arranged on the back of the casing of the grinder; an auger arranged in the pickup cavity, a fan arranged on one end of the auger and a scraper conveying mechanism arranged in an inclined manner; and the scraper conveying mechanism is arranged between the air outlet of the fan and the feeding fork. By adopting the invention, the stalks of corn and cotton can be cut, grinded, picked up, conveyed, compressed and baled conveniently once; and the square baler has strong functions, stable operation, high operation efficiency and low harvest cost.
Description
Technical field
The present invention relates to the agricultural machinery application, specifically, relate to a kind of with agricultural crop straw such as corn, cotton etc. upright or be put into state next time property finish cutting, pulverizings, collection, conveying, compress the side of beating and tie combined machine.
Background technology
Crop stalk such as corn, cotton can be used to rear cattle, sheep livestock and poultry, generating, papermaking etc.Cut down with artificial or machinery earlier when gathering in the crops straw at present, then, a kind of method is with grass pickup binder bundling, transports to the threshing ground, tears bundle pulverizing, bundling again open; Another kind method is with tractor diffusing straw to be transported to the threshing ground, again pulverizing, bundling.In above-mentioned two kinds of stalk harvesting approaches, the picking up and bundling machine of preceding a kind of harvesting approach only can be finished the picking up and bundling operation, before the picking up and bundling machine operation, also need manually stalk to be cut, and because corn, cotton straw are harder and different in size, if with traditional herbage binder bundling, straw is difficult for picking up, be difficult for cutting off, stop up the fault rate height easily; A kind of harvesting approach in back also needs manually stalk to be cut, and needs the tractor stalk that will loose to be transported to the appointed place, by pulverizing, uses other mechanical type or fluid pressure type binder bundling again.From its course of work, all exist production efficiency low, labour intensity is big, the high problem of results cost.Therefore, a kind of machinery that can finish cutting, pulverizing, collection, conveying, the bundle integration of operation of the compression side of beating simultaneously of exploitation has just become the task of top priority of current stalk results.
Though, in the existing agricultural machinery, there has been pair forage grass to cut, rub, compression, briquetter is rubbed in the forage grass cutting of bundling integration of operation, as, application number is the Chinese utility model patent disclosed structure of " 200720152717.3 " notification number for " 201064104Y ", and it is mainly by draw bar, power transmission shaft, flywheel, rub the chamber, main transmission box, crank connecting link, roller is rubbed in cutting, piston, discharge chambe, the bale length adjuster, needle brake, the bale density regulator, put the bundle plate, feeding fork crank axle, knotter, frame, the feeding fork, the feeding passage is formed.During operation, by tractor-drawn and driving, power transmission shaft from tractor motive power output shaft with transmission of power to each parts, cutting is rubbed roller and forage grass cutting is rubbed and thrown is delivered to feeding feeder connection place, the feeding fork is transported to discharge chambe with forage grass by the feeding passage again, herbage presses down the side's of shortening into bundle at the piston reciprocating in discharge chambe, when square bale length reached the length of bale length adjuster adjustment, knotter and needle brake were started working and will be tied the rope side of being banded in and tie up.Though briquetter production efficiency height is rubbed in the cutting of this kind structure, the results cost is low, but, it still has following deficiency: can not be used for as the big and hard crop harvesting in bars such as corn, cotton footpath, even use it for obstinately as the big and hard crop harvesting in bars such as corn, cotton footpath, its picking and chopping effect is also undesirable, and easily causes machine to stop up, and influences machine service life.
Therefore, be necessary to develop a kind of convenience in fact to corn, disposable cutting, pulverizing, collection, conveying, the compression side of the beating bundle combined machine finished of cotton stalk.
Summary of the invention
Technical problem to be solved by this invention is to rub briquetter at existing forage grass cutting can not finish the deficiency that cutting, pulverizings, collections, conveyings, the compression side of beating are tied to hard stalks such as corn, cotton are disposable, provide a kind of with agricultural crop straw such as corn, cotton etc. uprightly or be put into state next time property finish cutting, pulverizing, collection, conveying, compress the stalks cutting collection side of the beating bundle machine that integration of operation is tied by the side of beating.
To achieve these goals, stalks cutting of the present invention is collected the side's of beating bundle machine, be used to be arranged on the dead astern of tractor, comprise hitch frame, road wheel, power transmitting mechanism, cutting and grinding mechanism and compression binding mechanism, this power transmitting mechanism comprises power transmission shaft and power input mechanism; This cutting and grinding mechanism comprises the pulverizing casing and is arranged on the interior flail knife assembly of this pulverizing casing; This compression binding mechanism comprises feeding fork, compressing mechanism and binding mechanism, this compression binding mechanism is arranged on the top of this cutting and grinding mechanism, and also be provided with the collection connecting gear between this cutting and grinding mechanism and the compression binding mechanism, this collection connecting gear comprises:
Be arranged on the collecting chamber at this pulverizing casing rear portion;
Be installed in the screw feeder in this collecting chamber;
Be arranged on the blower fan of this screw feeder one end; And
The scraping plate transmission mechanism that is obliquely installed, this scraping plate transmission mechanism is between the air outlet and this feeding fork of this blower fan.
Above-mentioned stalks cutting is collected the side's of beating bundle machine, wherein, this power transmitting mechanism also comprises first power transmitting mechanism that drives this cutting and grinding mechanism, the action of collection connecting gear and second power transmitting mechanism that drives this compression binding mechanism action, wherein, the a part of power that transmits from the power take-off of this tractor is directly passed to this second power transmitting mechanism via this power input mechanism, after another part power passed to a speed increasing mechanism via this power input mechanism, this speed increasing mechanism passed to this first power transmitting mechanism again.
Above-mentioned stalks cutting is collected the side's of beating bundle machine, wherein, this hitch frame comprises the first hitch frame portion and the second hitch frame portion, this cutting and grinding mechanism is arranged in this first hitch frame portion by a cutting cracker frame, and this compression binding mechanism is arranged in this second hitch frame portion by a compression pile-driver tower.
Above-mentioned stalks cutting is collected the side's of beating bundle machine, wherein, also comprises the hydraulicefficiency elevation structure of this hitch frame lifting of control.
Above-mentioned stalks cutting is collected the side's of beating bundle machine, wherein, this hydraulicefficiency elevation structure comprises gyroaxis and the hydraulic jack that is arranged on this hitch frame, have on this gyroaxis one with the hinged lever of expansion link of this hydraulic jack, this road wheel is installed in the both sides of this gyroaxis.
Above-mentioned stalks cutting is collected the side's of beating bundle machine, wherein, also is provided with one on this cutting and grinding frame and supports adjustable plate.
Above-mentioned stalks cutting is collected the side's of beating bundle machine, and wherein, the inwall of this pulverizing casing is provided with this flail knife assembly is corresponding decides serrated knife.
Above-mentioned stalks cutting is collected the side's of beating bundle machine, and wherein, this flail knife assembly comprises the flail knife axle that is driven by this first power transmitting mechanism and is disposed on many groups flail knife on this flail knife axle, and it is interlaced to organize flail knives more.
Above-mentioned stalks cutting is collected the side's of beating bundle machine, and wherein, every group of flail knife comprises two L-shaped flail knife sheets, and these two flail knife sheets are back to being arranged on the soldering member.
Above-mentioned stalks cutting is collected the side's of beating bundle machine, and wherein, these two flail knife sheets are arranged on the outer rim of this flail knife axle by this soldering member, on one side this soldering member is provided with opening, this flail knife sheet is installed in this opening by bearing pin.
Beneficial functional of the present invention is: by the operation of tractor ormal traction, and in conjunction with cutting and grinding mechanism, collection connecting gear, compression binding mechanism, convenient corn, cotton stalk are disposablely finished cutting, pulverizings, collection, conveying, compressed the side of beating and tie integration of operation, function is strong, working stability, the operating efficiency height, the results cost is low.
And, the power separated into two parts that transmits from the power take-off of tractor, pass to cutting and grinding mechanism respectively, collect connecting gear and compression binding mechanism, and power passed through speed increasing mechanism before entering cutting and grinding mechanism, collecting connecting gear, thereby can satisfy the needs that the cutting and grinding of hard stalk are collected better.
Also have,, make stalks cutting collect convenient adjusting of working depth of the side's of beating bundle machine, can adapt to the farmland of various soil environments during work by the setting of hydraulicefficiency elevation structure and support adjustable plate.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is the general structure schematic diagram that stalks cutting of the present invention is collected the side's of beating bundle machine;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structure chart of the flail knife among Fig. 1.
Wherein, Reference numeral
The 100-hitch frame
The 101-first hitch frame portion
The 102-second hitch frame portion
The 200-road wheel
The 300-power transmitting mechanism
The 301-power transmission shaft
The 302-power input mechanism
The 303-speed increasing mechanism
304-first power transmitting mechanism
305-second power transmitting mechanism
The 3051-flywheel
400-cutting and grinding mechanism
410-pulverizes casing
420-flail knife assembly
421-flail knife axle
The 422-flail knife
4221,4222-flail knife sheet
423-axle soldering member
The 4231-opening
The 424-bearing pin
430-decides serrated knife
440-cutting and grinding frame
500-compresses binding mechanism
510-feeds fork
The 520-compressing mechanism
521-compresses gear-box
The 522-discharge chambe
The 523-compression piston
The 530-binding mechanism
540-compresses pile-driver tower
550-is put careless plate
600-collects connecting gear
The 601-collecting chamber
The 602-screw feeder
The 603-blower fan
The 604-scraping plate transmission mechanism
The 700-hydraulicefficiency elevation structure
The 710-hydraulic jack
The 720-gyroaxis
800-supports adjustable plate
Embodiment
Below in conjunction with the drawings and specific embodiments technical solution of the present invention being described in detail, further understanding purpose of the present invention, scheme and effect, but is not the restriction as claims protection domain of the present invention.
Consult Fig. 1 and Fig. 2, as shown in the figure, stalks cutting of the present invention is collected the side's of beating bundle machine, is used to be arranged on the dead astern of tractor, comprises hitch frame 100, road wheel 200, power transmitting mechanism 300, cutting and grinding mechanism 400, collects connecting gear 600 and compression binding mechanism 500.
Power transmitting mechanism 300 comprises power transmission shaft 301, power input mechanism 302, drive cutting and grinding mechanism 400, collect first power transmitting mechanism 304 of connecting gear 600 actions and drive second power transmitting mechanism 305 that the compression binding mechanism moves, a part of power that the power take-off of tractor transmits is directly passed to second power transmitting mechanism 305 via power input mechanism 302, after another part power passes to a speed increasing mechanism 303 via power input mechanism 302, this speed increasing mechanism 303 passes to first power transmitting mechanism, 304, the second power transmitting mechanisms 305 again and comprises a flywheel 3051.By such power transmission setting, stalks cutting is collected the side's of beating bundle machine by tractor-drawn and when driving, power transmission shaft 301 is sent to power input mechanism 302 from tractor motive power output shaft with power, pass to cutting and grinding mechanism 400 by this power input mechanism respectively after with the power separated into two parts, collect connecting gear 600 and compression binding mechanism 500, and power is entering cutting and grinding mechanism 400, pass through speed increasing mechanism 303 earlier before collecting connecting gear 600, thereby can satisfy the needs that the cutting and grinding of hard stalk are collected better.In the present embodiment, power input mechanism 302 is the vee-pulley transmission device, and speed increasing mechanism 303 is common step-up gear.
Cutting and grinding mechanism 400 comprises pulverizing casing 410 and the flail knife assembly 420 that is arranged in this pulverizing casing 410.In order to reach purpose with the stalk cutting and grinding, the inwall of pulverizing casing 410 is provided with flail knife assembly 420 is corresponding decides serrated knife 430, and, flail knife assembly 420 comprises the flail knife axle 421 that is driven by first power transmitting mechanism 304 and is disposed on many groups flail knife 422 on this flail knife axle, in order to reach the purpose of stalk cutting and grinding better, these many group flail knives are interlaced.Further combined with consulting Fig. 3, every group of flail knife 422 comprises two L-shaped flail knife sheets 4221,4222, these two flail knife sheets are back to being arranged on the soldering member 423, this soldering member 423 is arranged on the outer rim of flail knife axle 421, be provided with on one side opening on the axle soldering member 423, flail knife sheet 4221,4222 is installed in this opening by bearing pin.
Collect connecting gear 600 and be arranged between cutting and grinding mechanism 400 and the compression binding mechanism 500, it comprises collecting chamber 601, screw feeder 602, blower fan 603 and scraping plate transmission mechanism 604.Wherein, collecting chamber 601 is arranged on pulverizes casing 410 rear portions, and screw feeder 602 is installed in the collecting chamber 601, and blower fan 603 is arranged on the blower fan of screw feeder 602 1 ends, scraping plate transmission mechanism 604 relative hitch frames are obliquely installed, and between the air outlet and feeding fork 510 of blower fan 603.
For the work, the shipping height that make stalks cutting collect the side's of beating bundle machine can be regulated, so that can adapt to the farmland of various soil environments during work, a hydraulicefficiency elevation structure 700 of controlling this hitch frame lifting is arranged.This hydraulicefficiency elevation structure 700 comprises gyroaxis 720 and the hydraulic jack 710 that is arranged on this hitch frame, the expansion link of lever one end of a vertical welding and this hydraulic jack 710 is hinged on the gyroaxis 720, and road wheel 200 is installed in the lever other end of the gyroaxis vertical seam in 720 both sides.
When needs are regulated the terrain clearance of machine, can with 710 actions of control hydraulic jack, thereby make gyroaxis 720 rotations by being arranged on the hydraulic valve on the tractor to reach the purpose of the terrain clearance of regulating machine.Further, in order to ensure the terrain clearance of cutting and grinding mechanism, cutting and grinding frame 440 is provided with and supports adjustable plate 800.
When stalks cutting was collected the side's of beating bundle machine operation, hitch frame 100 articulated with the tractor hanger bracket, and power transmission shaft 301 connects with power input mechanism 302, and transmission of power is given each parts.The hydraulic valve of regulating on the tractor is adjusted the machine terrain clearance, the tractor-drawn facility advance, the flail knife assembly 420 of high speed rotating impacts stalk upright or that be put into, and form negative pressure at the feeding mouth place with the blower fan 603 of high speed rotating, straw is inhaled into to be pulverized in the casing 410, and meet and sheared with the serrated knife of pulverizing on casing 410 inwalls 430 of deciding, and because the variation in casing inner wall cross section causes the change of air velocity, straw repeatedly is subjected to impacting of flail knife assembly 420 and makes its pulverizing, thrown by air-flow at last and deliver to collecting chamber 601, collecting chamber 601 inside spin screw feeders 602 are transported to stalk at blower fan 603 places of one end, straw is under the centrifugal action of blower fan 603, throw to rubbing board conveying mechanism 604, rubbing board conveying mechanism 604 promotes straws to feeding fork 510 places, and feeding fork 510 is dialled in discharge chambe 522 to straw.Straw presses down the side's of shortening into bundle at compression piston 523 reciprocatings in discharge chambe 522, binding mechanism 530 knottings when side bundle reaches certain-length, along with straw constantly feeds, and the bale of tying up continues to move backward, falls on the ground by putting careless plate 550 at last.
The existing relatively briquetter of the present invention has following advantage:
(1) by the traction of tractor forward, radius of turn is little, the complete machine working stability.
(2) terrain clearance of complete machine is not only adjustable, and easy to adjust, and labor aptitude is strong.
(3) pulverize the stationary knife that is provided with on the casing in the cutting and grinding mechanism, the high speed rotating flail knife, the negative pressure that produces in the blower fan, casing, straw shreds, collecting effect is good.
(4) stalk after the chopping is delivered to the compression binding mechanism through screw feeder, blower fan and scraping plate transmission mechanism, and straw is carried smooth, has avoided the possibility of machine obstruction, has guaranteed the continuity of two parts work.
(5) the compression binding mechanism is arranged on the top of cutting and grinding mechanism, and be provided with special collection connecting gear between cutting and grinding mechanism and the compression binding mechanism, thereby can be conveniently finish cutting, pulverizing, collection, conveying, the compression side of beating and tie integration of operation corn, cotton stalk are disposable, powerful, the operating efficiency height, the results cost is low.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1. a stalks cutting is collected the side's of beating bundle machine, is used to be arranged on the dead astern of tractor, comprises hitch frame, road wheel, power transmitting mechanism, cutting and grinding mechanism and compression binding mechanism, and this power transmitting mechanism comprises power transmission shaft and power input mechanism; This cutting and grinding mechanism comprises the pulverizing casing and is arranged on the interior flail knife assembly of this pulverizing casing; This compression binding mechanism comprises feeding fork, compressing mechanism and binding mechanism, it is characterized in that, this compression binding mechanism is arranged on the top of this cutting and grinding mechanism, and also is provided with the collection connecting gear between this cutting and grinding mechanism and the compression binding mechanism, and this collection connecting gear comprises:
Be arranged on the collecting chamber at this pulverizing casing rear portion;
Be installed in the screw feeder in this collecting chamber;
Be arranged on the blower fan of this screw feeder one end; And
The scraping plate transmission mechanism that is obliquely installed, this scraping plate transmission mechanism is between the air outlet and this feeding fork of this blower fan.
2. stalks cutting according to claim 1 is collected the side's of beating bundle machine, it is characterized in that, this power transmitting mechanism also comprises this cutting and grinding mechanism of drive, collect first power transmitting mechanism of connecting gear action and drive second power transmitting mechanism that this compression binding mechanism moves, wherein, the a part of power that transmits from the power take-off of this tractor is directly passed to this second power transmitting mechanism via this power input mechanism, after another part power passed to a speed increasing mechanism via this power input mechanism, this speed increasing mechanism passed to this first power transmitting mechanism again.
3. stalks cutting according to claim 1 and 2 is collected the side's of beating bundle machine, it is characterized in that, this hitch frame comprises the first hitch frame portion and the second hitch frame portion, this cutting and grinding mechanism is arranged in this first hitch frame portion by a cutting cracker frame, and this compression binding mechanism is arranged in this second hitch frame portion by a compression pile-driver tower.
4. stalks cutting according to claim 3 is collected the side's of beating bundle machine, it is characterized in that, also comprises the hydraulicefficiency elevation structure of this hitch frame lifting of control.
5. stalks cutting according to claim 4 is collected the side's of beating bundle machine, it is characterized in that, this hydraulicefficiency elevation structure comprises gyroaxis and the hydraulic jack that is arranged on this hitch frame, have on this gyroaxis one with the hinged lever of expansion link of this hydraulic jack, this road wheel is installed in the both sides of this gyroaxis.
6. stalks cutting according to claim 4 is collected the side's of beating bundle machine, it is characterized in that, also is provided with one on this cutting and grinding frame and supports adjustable plate.
7. stalks cutting according to claim 1 and 2 is collected the side's of beating bundle machine, it is characterized in that, the inwall of this pulverizing casing is provided with this flail knife assembly is corresponding decides serrated knife.
8. stalks cutting according to claim 7 is collected the side's of beating bundle machine, it is characterized in that, this flail knife assembly comprises the flail knife axle that is driven by this first power transmitting mechanism and is disposed on many groups flail knife on this flail knife axle, and it is interlaced to organize flail knives more.
9. stalks cutting according to claim 8 is collected the side's of beating bundle machine, it is characterized in that every group of flail knife comprises two L-shaped flail knife sheets, and these two flail knife sheets are back to being arranged on the soldering member.
10. stalks cutting according to claim 9 is collected the side's of beating bundle machine, it is characterized in that, these two flail knife sheets are arranged on the outer rim of this flail knife axle by this soldering member, on one side this soldering member is provided with opening, this flail knife sheet is installed in this opening by bearing pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010299956 CN101999271A (en) | 2010-10-08 | 2010-10-08 | Stalk chopping and pickup square baler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010299956 CN101999271A (en) | 2010-10-08 | 2010-10-08 | Stalk chopping and pickup square baler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101999271A true CN101999271A (en) | 2011-04-06 |
Family
ID=43807159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010299956 Pending CN101999271A (en) | 2010-10-08 | 2010-10-08 | Stalk chopping and pickup square baler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101999271A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102668825A (en) * | 2012-05-25 | 2012-09-19 | 滦南县鑫万达机械制造有限公司 | Straw press-baler |
| CN102668808A (en) * | 2012-05-25 | 2012-09-19 | 滦南县鑫万达机械制造有限公司 | Straw harvesting and crushing press-baler |
| CN102960119A (en) * | 2012-11-09 | 2013-03-13 | 四川农业大学 | Rice-wheat section straw absorption, cutting and collection machinery |
| CN103168577A (en) * | 2011-12-26 | 2013-06-26 | 孙首泉 | Cornstalk smashing recycling press-baler |
| CN104412772A (en) * | 2013-08-21 | 2015-03-18 | 孙首泉 | Straw harvesting press-baler |
| CN110692369A (en) * | 2019-09-10 | 2020-01-17 | 长沙中能装备制造有限公司 | Walking type straw extrusion forming machine and field straw extrusion forming method |
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| GB720753A (en) * | 1953-02-24 | 1954-12-29 | Westerasmaskiner Ab | Improvements in and relating to grain binders |
| GB985999A (en) * | 1960-08-12 | 1965-03-17 | Luigi Castoldi | Improvements in front-cutting reaper and binder machines |
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| GB720753A (en) * | 1953-02-24 | 1954-12-29 | Westerasmaskiner Ab | Improvements in and relating to grain binders |
| GB985999A (en) * | 1960-08-12 | 1965-03-17 | Luigi Castoldi | Improvements in front-cutting reaper and binder machines |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103168577A (en) * | 2011-12-26 | 2013-06-26 | 孙首泉 | Cornstalk smashing recycling press-baler |
| CN103168577B (en) * | 2011-12-26 | 2015-10-14 | 孙首泉 | A kind of corn straw smashing reclaims briquetter |
| CN102668825A (en) * | 2012-05-25 | 2012-09-19 | 滦南县鑫万达机械制造有限公司 | Straw press-baler |
| CN102668808A (en) * | 2012-05-25 | 2012-09-19 | 滦南县鑫万达机械制造有限公司 | Straw harvesting and crushing press-baler |
| CN102960119A (en) * | 2012-11-09 | 2013-03-13 | 四川农业大学 | Rice-wheat section straw absorption, cutting and collection machinery |
| CN102960119B (en) * | 2012-11-09 | 2018-02-23 | 四川农业大学 | A kind of rice wheat section stalk absorbs chopping harvester tool |
| CN104412772A (en) * | 2013-08-21 | 2015-03-18 | 孙首泉 | Straw harvesting press-baler |
| CN104412772B (en) * | 2013-08-21 | 2017-06-13 | 孙首泉 | A kind of stalk cutting baling press |
| CN110692369A (en) * | 2019-09-10 | 2020-01-17 | 长沙中能装备制造有限公司 | Walking type straw extrusion forming machine and field straw extrusion forming method |
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Application publication date: 20110406 |