CN108476754B - Straw crushing and returning device - Google Patents
Straw crushing and returning device Download PDFInfo
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- CN108476754B CN108476754B CN201810275845.XA CN201810275845A CN108476754B CN 108476754 B CN108476754 B CN 108476754B CN 201810275845 A CN201810275845 A CN 201810275845A CN 108476754 B CN108476754 B CN 108476754B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F29/00—Cutting apparatus specially adapted for cutting hay, straw or the like
- A01F29/06—Cutting apparatus specially adapted for cutting hay, straw or the like having rotating knives with their cutting edges on a cylinder surface, e.g. of the helical-type
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F29/00—Cutting apparatus specially adapted for cutting hay, straw or the like
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- Crushing And Pulverization Processes (AREA)
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Abstract
The invention discloses a straw crushing and returning device which comprises a rack, wherein a crushing box, a feed hopper, a rotatable roller and a first rotary driving assembly which is connected with the roller and drives the roller to rotate are arranged on the rack, the roller is positioned in an inner cavity of the crushing box, the feed hopper is communicated with the top of the inner cavity of the crushing box, more than one discharge hole is formed in the bottom of the inner cavity of the crushing box, the roller is provided with a hollow cavity, the wall of the roller is provided with a material passing hole communicated with the hollow cavity and the outer part of the roller, a plurality of groups of cutter sets which are arranged at intervals along the rotary axis of the roller are arranged on the roller, each group of cutter set comprises a plurality of movable cutters which are distributed at intervals around the rotary axis of the roller, and fixed cutters which are used for matching with the movable cutters in the cutter set to crush straws are fixedly arranged on the rack. The straw crushing and returning device has the advantages of simple and compact structure, stable and reliable work, convenient installation and maintenance, high working efficiency, good crushing effect, energy consumption and cost saving and the like.
Description
Technical Field
The invention relates to the technical field of agricultural machinery, in particular to a straw crushing and returning device.
Background
In agricultural production, after crops are harvested, the straws need to be pulled out and treated, and preparation is made for planting the crops in the later period. At present, the treatment method of the straws generally adopts manual work to pull out the straws, and the harvested straws are placed in the farmland on the spot and are incinerated in the field, which can cause serious air pollution. Therefore, the country is vigorously promoting the straw crushing and returning to the field, and thus the purposes of reducing pollution and improving farmland soil are achieved.
The existing straw crushing and returning machine mainly has the modes of striking, rubbing, sawing, rolling and the like for crushing straws, has the problems of high energy consumption, poor crushing effect and low efficiency, and has the defects of complex structure, large occupied space and inconvenient installation and maintenance.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and provides a straw crushing and returning device which has the advantages of simple and compact structure, stable and reliable work, convenient installation and maintenance, high working efficiency, good crushing effect, capability of preventing crushed material from being blocked and energy consumption and cost saving.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a still field device is smashed to straw, includes the frame, install in the frame and smash case, feeder hopper, rotatable cylinder and link to each other and drive the first rotation driving assembly of cylinder pivoted with the cylinder, the cylinder is arranged in smashing the incasement chamber, the feeder hopper communicates with the top of smashing the incasement chamber, the bottom of smashing the incasement chamber is equipped with more than one discharge gate, the cylinder has hollow cavity, be equipped with the punishment in advance hole that communicates cavity and cylinder outside on the section of thick bamboo wall of cylinder, install the knife tackle that the multiunit set up along cylinder axis of rotation interval on the cylinder, each knife tackle is including moving the sword around the many handles of cylinder axis of rotation interval distribution, correspond in the frame that the equal fixed mounting of every knife tackle of group has and be arranged in with the knife tackle respectively move the stationary knife that the sword cooperation cuts up the straw.
In the straw crushing and returning device, preferably, an end outlet which is communicated with the hollow cavity and the outside of the roller is formed in one axial end of the roller, and a discharging assembly which is used for discharging the straw which is cut up in the hollow cavity from the end outlet is installed in the hollow cavity.
Above-mentioned still field device is smashed to straw, preferentially, it includes that the rotatable row material axle of installing in the frame and drive row material axle pivoted second rotate the drive assembly to arrange the material epaxial being equipped with and rotating along with row material axle and taking the broken straw in the cavity to export exhaust helical blade from the tip along with arranging the material axle.
In the above straw crushing and returning device, preferably, one end of the drum is mounted on the frame through a bearing assembly, and the other end of the drum is rotatably supported on the frame through more than two carrier rollers; the discharging shaft penetrates through the end part outlet, one end of the discharging shaft is mounted on the roller through a bearing assembly, the other end of the discharging shaft is mounted on the rack through the bearing assembly, and the rotating axis of the discharging shaft is overlapped with that of the roller; the first rotary driving component comprises a rotary driving piece, and the rotary driving piece is connected with the roller through a first transmission mechanism; the second rotates drive assembly including installing the jackshaft in the frame, the jackshaft passes through second drive mechanism and links to each other with the cylinder, it links to each other with the jackshaft to arrange the material axle through third drive mechanism.
In the straw crushing and returning device, preferably, the roller comprises a shaft disc, a ring-shaped end cover and a plurality of tool rests, the shaft disc and the ring-shaped end cover are respectively arranged at two axial ends of the roller, the tool rests are arranged at intervals around the axis of the roller, two ends of each tool rest are respectively connected with the shaft disc and the ring-shaped end cover, two adjacent tool rests, the shaft disc and the ring-shaped end cover enclose the material passing hole, a central hole of the ring-shaped end cover is used as an end outlet, the shaft disc is arranged on the rack through a bearing assembly, the ring-shaped end cover is supported on the rack in a rotatable mode through more than two carrier rollers, and each group of tool sets is provided with one moving tool on each tool rest.
In the straw crushing and returning device, preferably, each knife rest is connected to the shaft disc and the annular end cover in a manner of adjusting the radial distance between the knife rest and the axis of the roller and the included angle between the knife rest and the cross section of the axis of the roller.
In the straw crushing and returning device, preferably, the fixed knives are positioned below the communicating port of the feeding hopper and the inner cavity of the crushing box, and each fixed knife is arranged on the rack in a manner that the installation position can be adjusted along the radial direction of the roller.
The straw crushing and returning device is preferred, a grid baffle plate which is obliquely arranged from top to bottom is arranged below the discharge port, and the grid baffle plate is installed on the rack through the swinging assembly and can be driven by the swinging assembly to do reciprocating swinging motion.
In the straw crushing and returning device, preferably, the bottom of the inner cavity of the crushing box is provided with two discharge ports, one discharge port is positioned under the roller, and the other discharge port is positioned under the outlet at the end part; the grid arrangement mode that the grid baffle is located tip export below is for being radial arrangement along the direction of grid baffle downward sloping, be provided with on the grid baffle and fall to the material receiving channel on grid baffle top after gathering the exhaust back straw that cuts up of two discharge gates.
In the straw crushing and returning device, preferably, the grid baffle is connected to the frame through a plurality of swing rods and can swing and move relative to the frame in a manner of keeping an inclination angle unchanged; the swing assembly comprises a turntable and a connecting rod, the turntable is rotatably mounted on the rack, two ends of the connecting rod are hinged to the turntable and the grid baffle respectively, and the turntable is connected with the first rotary driving assembly through a fourth transmission mechanism.
Compared with the prior art, the invention has the advantages that: the straw crushing and returning device provided by the invention has the advantages that the movable cutter rotating with the roller at a high speed is matched with the fixed cutter fixedly arranged to crush the straws, and the movable cutter and the fixed cutter can be moved in a staggered mode relatively to crush the straws efficiently and quickly, so that the working efficiency is greatly improved, the crushing effect is improved, and the energy consumption and the cost are saved. The straw crushing and returning device has the advantages of simple and compact structure, stable and reliable work and convenient installation and maintenance.
Drawings
FIG. 1 is a schematic view of a partial main sectional structure of the straw crushing and returning apparatus after removing a surrounding plate of the crushing box.
FIG. 2 is a schematic diagram of a side view of the straw crushing and returning device after the coaming of the crushing box is removed.
Illustration of the drawings:
1. a crushing box; 101. a discharge port; 102. a material receiving channel; 2. a feed hopper; 3. a drum; 301. a reel; 302. a ring-shaped end cover; 3021. a ring-shaped guide groove; 303. a tool holder; 31. a hollow cavity; 32. a material passing hole; 33. an end outlet; 5. moving a knife; 6. fixing a cutter; 7. a discharge shaft; 8. a helical blade; 9. a carrier roller; 10. a grid baffle; 11. a swing rod; 12. a turntable; 13. a connecting rod; 100. a frame; 200. a first transmission mechanism; 300. an intermediate shaft; 400. a second transmission mechanism; 500. and a third transmission mechanism.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
As shown in fig. 1 and fig. 2, the straw crushing and returning device of the embodiment comprises a frame 100, a crushing box 1, a feeding hopper 2, a rotatable roller 3 and a first rotary driving component are installed on the frame 100, the roller 3 is located in an inner cavity of the crushing box 1, the first rotary driving component is connected with the roller 3 and can drive the roller 3 to rotate, the feeding hopper 2 is communicated with the top of the inner cavity of the crushing box 1, the straws can be fed into the inner cavity of the crushing box 1 through the feeding hopper 2, more than one discharging hole 101 is arranged at the bottom of the inner cavity of the crushing box 1 and used for discharging the crushed straws out of the inner cavity of the crushing box 1, the roller 3 is provided with a hollow cavity 31, a material passing hole 32 communicated with the hollow cavity 31 and the outer part of the roller 3 is arranged on the wall of the roller 3, the material passing hole 32 is used for the straws to pass through the roller 3, a plurality of cutter sets arranged at intervals along the rotation axis of the roller 3 are installed on the roller 3, each cutter set comprises a plurality of movable cutters 5 arranged at intervals around the rotation axis of the roller 3, the fixed knives 6 are fixedly arranged on the frame 100 corresponding to each group of knife groups, and when the roller 3 rotates, each fixed knife 6 is used for being matched with each movable knife 5 in the corresponding knife group to shred straws. During operation moves sword 5 and rotates along with cylinder 3 is high-speed, can smash the straw with the cooperation of stationary knife 6, utilizes the relative dislocation motion who moves sword 5 and stationary knife 6, can high-efficiently quick chop the straw to improve work efficiency greatly, improve crushing effect, energy saving and cost, this straw is smashed and is returned field device has simple structure compactness, job stabilization is reliable, installation and maintenance convenient advantage, can adapt to the crop straw of various humidity.
In this embodiment, an end outlet 33 is disposed at one axial end of the drum 3 to communicate the hollow cavity 31 with the outside of the drum 3, and a discharging assembly for discharging the straw cut up in the hollow cavity 31 from the end outlet 33 is installed in the hollow cavity 31. Because the high-speed rotation of cylinder 3 can make the straw after cutting up difficult to follow discharge gate 101 free fall cylinder 3, lead to the straw to pile up and cause the jam, adopt the row material subassembly can force the straw after smashing in the cavity 31 in time to discharge from tip export 33, can effectively avoid blockking up, guarantee the continuity and the reliability of work.
In this embodiment, the discharging assembly comprises a discharging shaft 7 rotatably mounted on the frame 100 and a second rotary driving assembly for driving the discharging shaft 7 to rotate, and the discharging shaft 7 is provided with a helical blade 8 which rotates with the discharging shaft 7 to drive the crushed straws in the hollow cavity 31 to be discharged from the end outlet 33. When the second rotary driving assembly drives the discharging shaft 7 to rotate, the helical blades 8 rotate along with the discharging shaft 7, and can take the crushed straws in the hollow cavity 31 to be discharged from the end outlet 33. The discharge assembly is simple and compact in structure, convenient to manufacture and install, stable and reliable in work, and capable of being matched with the inner cavity of the roller 3 to efficiently discharge chopped straws.
In this embodiment, one end of the drum 3 is mounted on the frame 100 through a bearing assembly, and the other end of the drum 3 is rotatably supported on the frame 100 through two or more carrier rollers 9; the discharge shaft 7 penetrates through the end outlet 33, one end of the discharge shaft 7 is mounted on the roller 3 through a bearing assembly, the other end of the discharge shaft 7 is mounted on the rack 100 through the bearing assembly, the rotating axis of the discharge shaft 7 is overlapped with the rotating axis of the roller 3, the roller 3 and the discharge shaft 7 are coaxially designed and respectively adopt different supporting and mounting modes, and the mounting modes are convenient to manufacture and assemble, are beneficial to improving the structure compactness and reducing the cost and are beneficial to improving the transmission efficiency.
The first rotary driving component comprises a rotary driving piece which is connected with the roller 3 through a first transmission mechanism 200; the second rotary drive assembly comprises an intermediate shaft 300 mounted on the frame 100, the intermediate shaft 300 being connected to the drum 3 via a second transmission 400, and the discharge shaft 7 being connected to the intermediate shaft 300 via a third transmission 500. The rotary driving member can drive the roller 3 to rotate through the first transmission mechanism 200, and simultaneously the roller 3 transmits torque to the intermediate shaft 300 through the second transmission mechanism 400, and then drives the discharging shaft 7 to rotate through the third transmission mechanism 500. The discharge shaft 7 and the roller 3 share one rotary driving piece, so that the cost can be saved, the control difficulty can be reduced, and the coaxial transmission with different speeds and torques can be realized by controlling the transmission ratio of the second transmission mechanism 400 and the third transmission mechanism 500. The first transmission mechanism 200, the second transmission mechanism 400 and the third transmission mechanism 500 can be chain transmission mechanisms or belt transmission mechanisms, and the rotary driving member can be a motor or other power devices.
In this embodiment, the drum 3 includes a shaft disc 301, a ring-shaped end cover 302 and a plurality of tool holders 303, the shaft disc 301 and the ring-shaped end cover 302 are respectively disposed at two axial ends of the drum 3, the plurality of tool holders 303 are arranged at intervals around an axis of the drum 3, two ends of each tool holder 303 are respectively connected with the shaft disc 301 and the ring-shaped end cover 302, two adjacent tool holders 303, the shaft disc 301 and the ring-shaped end cover 302 enclose a material passing hole 32, a central hole of the ring-shaped end cover 302 serves as an end outlet 33, the shaft disc 301 is mounted on the rack 100 through a bearing assembly, the ring-shaped end cover 302 is rotatably supported on the rack 100 through more than two carrier rollers 9, and each group of the tool sets is provided with a movable tool 5 on each tool holder 303. The central hole of the annular end cover 302 is directly used as the end outlet 33, so that the structure compactness can be improved, the manufacturing difficulty can be reduced, and the combined roller 3 is easy to manufacture, low in manufacturing cost and convenient to replace and maintain. Preferably, the annular guide groove 3021 is formed on the outer circumferential surface of the annular end cover 302 and is fitted over the carrier roller 9, so that the stability of the drum 3 during rotation can be improved. Preferably, a limiting structure for limiting the rotation of the tool holder 303 relative to the spindle hub 301 is arranged between each tool holder 303 and the spindle hub 301, for example, the limiting structure may adopt a non-circular hole and non-circular boss insertion structure, or a mutually abutting step structure, etc.
In this embodiment, each tool holder 303 is connected to the shaft disc 301 and the annular end cover 302 in a manner that the radial distance between the tool holder 303 and the axis of the drum 3 and the included angle between the tool holder 303 and the axial section of the drum 3 can be adjusted, and the distance between the rotating circumference of the movable knife 5 and the fixed knife 6 can be adjusted by adjusting the radial distance between the tool holder 303 and the axis of the drum 3 and the included angle between the tool holder 303 and the axial section of the drum 3, so that the adjustment of the shredding gap is realized; meanwhile, the included angle between the tool rest 303 and the axial section of the roller 3 is adjusted, the inclination angle of the movable knife 5 can be adjusted, the chopping effect is ensured, and the adjustable knife rest can adapt to crop straws with different characteristics. In this embodiment, each tool holder 303 specifically adopts the following installation method, an adjusting groove extending along the radial direction of the roller 3 is formed in the reel 301 and the annular end cover 302 corresponding to each tool holder 303, a bolt penetrates through the adjusting groove to connect and fix the reel 301 and the tool holder 303 as well as the annular end cover 302 and the tool holder 303, the bolt can adjust the position along the adjusting groove, and meanwhile, the bolt can also adjust the rotation angle of the tool holder 303 around the axis of the bolt, so that the radial distance between the tool holder 303 and the axis of the roller 3 can be adjusted, and the included angle between the tool holder 303 and the axial section of the roller 3 can be adjusted.
In this embodiment, stationary knife 6 is located feeder hopper 2 and smashes the intercommunication mouth below of case 1 inner chamber, makes the straw follow feeder hopper 2 and just get into and smash case 1 inner chamber and cut up by passive sword 5 and stationary knife 6 promptly, can further improve crushing efficiency and crushing effect, avoids the straw can not in time smash and cause winding and jam problem. Each fixed knife 6 is mounted on the frame 100 in such a manner that the mounting position thereof can be adjusted in the radial direction of the drum 3, and the distance between the rotating circumference of the movable knife 5 and the fixed knife 6 can be adjusted by adjusting the mounting position of the fixed knife 6 in the radial direction of the drum 3, thereby adjusting the shredding gap. Each fixed knife 6 is specifically mounted in a manner that an adjusting groove extending along the radial direction of the roller 3 is formed in the rack 100, a bolt penetrates through the adjusting groove to fix the fixed knife 6 on the rack 100, and the position of the bolt can be adjusted along the adjusting groove, so that the mounting position of the fixed knife 6 in the radial direction of the roller 3 is adjusted.
In this embodiment, a grid baffle 10 disposed obliquely from top to bottom is disposed below the discharge port 101, and the grid baffle 10 is mounted on the frame 100 through a swing assembly and can be driven by the swing assembly to swing back and forth. The grid baffle 10 has a flow guiding function, and the swing assembly drives the grid baffle 10 to do reciprocating swing motion, so that the broken straws can slide downwards and be dispersed uniformly in the process of sliding downwards along the grid baffle 10, and the broken straws discharged from the discharge port 101 can be scattered uniformly and returned to the field.
In this embodiment, the bottom of the inner cavity of the crushing box 1 is provided with two discharge ports 101, wherein one discharge port 101 is positioned right below the roller 3, and the other discharge port 101 is positioned right below the end outlet 33; the grid baffle 10 is arranged in a radial manner along the downward inclined direction of the grid baffle 10 below the end outlet 33, and the grid baffle 10 is provided with a material receiving channel 102 which joins the chopped straws discharged from the two discharge ports 101 and then drops to the top end of the grid baffle 10. Under the state that the roller 3 rotates at a high speed, most of chopped straws are discharged from the end part outlet 33 through the action of the discharge assembly, the grid baffle plates 10 positioned below the end part outlet 33 are arranged in a radial mode along the downward inclined direction of the grid baffle plates 10, and the chopped straws discharged from the end part outlet 33 can be thrown on the whole grid baffle plates 10 to achieve the purposes of uniform distribution and throwing. Meanwhile, the material receiving channel 102 arranged at the top end of the grid baffle plate 10 can combine the chopped straws discharged from the two discharge ports 101 and enable the chopped straws to fall to the top end of the grid baffle plate 10, so that the chopped straws can be thrown by vibration and transversely distributed again to drop when the grid baffle plate 10 swings.
In this embodiment, the grid baffle 10 is connected to the frame 100 through four swing rods 11 and can swing relative to the frame 100 in a manner of keeping an inclination angle unchanged, so that the broken straws can uniformly slide down on the grid baffle 10 in a dispersing manner, and the uniformity of throwing the broken straws to the field is further improved.
In this embodiment, the swing assembly includes a rotary table 12 and a connecting rod 13, the rotary table 12 is rotatably mounted on the rack 100, two ends of the connecting rod 13 are respectively hinged to the rotary table 12 and the grid baffle 10, the rotary table 12 is connected to the first rotation driving assembly through a fourth transmission mechanism, the rotary table 12 and the connecting rod 13 form a crank-link mechanism, and the grid baffle 10 can be driven to swing back and forth through the connecting rod 13 when the rotary table 12 rotates. Preferably, the fourth transmission mechanism comprises a steering gear, the steering gear is in the prior art, the input end of the steering gear is connected with the aforementioned intermediate shaft 300, the output end of the steering gear is connected with the rotary table 12, and the intermediate shaft 300 can drive the rotary table 12 to rotate through the steering gear, so as to drive the grid baffle 10 to swing. The swing assembly directly takes power from the intermediate shaft 300, so that the structure compactness can be further improved, the cost is saved, and the control difficulty is reduced.
In this embodiment, the crushing box 1 is composed of a frame provided on the frame 100 and a surrounding plate connected to the frame. Preferably, discharge gate 101 is equipped with two altogether, and a discharge gate 101 is located cylinder 3 below for the garrulous straw that supplies to pass cylinder 3 discharges, and another discharge gate 101 is located the below of tip export 33, is used for supplying the garrulous straw that drops from tip export 33 to discharge, and discharge gate 101 is a hopper-shaped passageway, and the cross-sectional area of hopper-shaped passageway reduces along the direction from top to bottom gradually, is favorable to the smooth concentrated discharge of straw after cutting up, prevents piling up of material. Preferably, six groups of knife sets are arranged on the roller 3.
The straw crushing and returning device of the embodiment can be driven by independent power to be used independently and can also be matched with a combine harvester for use.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-described embodiments. Modifications and variations that may occur to those skilled in the art without departing from the spirit and scope of the invention are to be considered as within the scope of the invention.
Claims (7)
1. The utility model provides a still field device is smashed to straw which characterized in that: comprises a frame (100), a crushing box (1), a feed hopper (2), a rotatable roller (3) and a first rotary driving component which is connected with the roller (3) and drives the roller (3) to rotate are arranged on the frame (100), the roller (3) is positioned in the inner cavity of the crushing box (1), the feed hopper (2) is communicated with the top of the inner cavity of the crushing box (1), more than one discharge hole (101) is arranged at the bottom of the inner cavity of the crushing box (1), the roller (3) is provided with a hollow cavity (31), a material passing hole (32) which is communicated with the hollow cavity (31) and the outer part of the roller (3) is arranged on the wall of the roller (3), a plurality of groups of cutter groups which are arranged at intervals along the rotary axis of the roller (3) are arranged on the roller (3), each group of cutter groups comprises a plurality of movable cutters (5) which are distributed at intervals around the rotary axis of the roller (3), fixed cutters (6) which are used for being matched with the movable cutters (5) in the cutter groups to shred the straws are fixedly arranged on the rack (100) corresponding to each cutter group; an end outlet (33) which is communicated with the hollow cavity (31) and the outside of the roller (3) is formed in one axial end of the roller (3), and a discharging assembly which is used for discharging the straw cut in the hollow cavity (31) from the end outlet (33) is installed in the hollow cavity (31);
the discharging assembly comprises a discharging shaft (7) which is rotatably arranged on the rack (100) and a second rotary driving assembly which drives the discharging shaft (7) to rotate, wherein a spiral blade (8) which drives the crushed straws in the hollow cavity (31) to be discharged from an end outlet (33) along with the rotation of the discharging shaft (7) is arranged on the discharging shaft (7);
one end of the roller (3) is arranged on the frame (100) through a bearing assembly, and the other end of the roller (3) is rotatably supported on the frame (100) through more than two carrier rollers (9); the discharging shaft (7) penetrates through the end part outlet (33), one end of the discharging shaft (7) is installed on the roller (3) through a bearing assembly, the other end of the discharging shaft (7) is installed on the rack (100) through the bearing assembly, and the rotating axis of the discharging shaft (7) is overlapped with that of the roller (3); the first rotary driving component comprises a rotary driving piece, and the rotary driving piece is connected with the roller (3) through a first transmission mechanism (200); the second rotates drive assembly including installing jackshaft (300) in frame (100), jackshaft (300) link to each other with cylinder (3) through second drive mechanism (400), row material axle (7) link to each other with jackshaft (300) through third drive mechanism (500).
2. The straw chopping and returning device as claimed in claim 1, wherein: the roller (3) comprises a shaft disc (301), a ring-shaped end cover (302) and a plurality of tool rests (303), the shaft disc (301) and the ring-shaped end cover (302) are respectively arranged at two axial ends of the roller (3), the plurality of tool rests (303) are arranged at intervals around the axis of the roller (3), two ends of each tool rest (303) are respectively connected with the shaft disc (301) and the ring-shaped end cover (302), two adjacent tool rests (303), the shaft disc (301) and the ring-shaped end cover (302) enclose one material passing hole (32), a central hole of the ring-shaped end cover (302) serves as an end outlet (33), the shaft disc (301) is installed on the rack (100) through a bearing assembly, the ring-shaped end cover (302) is supported on the rack (100) in a rotatable mode through more than two carrier rollers (9), and each group of tool sets is provided with a movable tool (5) on each tool rest (303).
3. The straw chopping and returning device as claimed in claim 2, wherein: each tool rest (303) is connected to the shaft disc (301) and the annular end cover (302) in a mode of adjusting the radial distance between the tool rest and the axis of the roller (3) and the included angle between the tool rest and the axial section of the roller (3).
4. The straw chopping and returning device as claimed in claim 1, wherein: the fixed knives (6) are positioned below the communicating openings of the feeding hopper (2) and the inner cavity of the crushing box (1), and the fixed knives (6) are arranged on the rack (100) in a mode that the installation positions can be adjusted along the radial direction of the roller (3).
5. The straw chopping and returning device as claimed in any one of claims 1 to 3, wherein: the utility model discloses a grid baffle, including discharge gate (101), grid baffle (10) are installed on frame (100) and can be driven reciprocating swing motion by the swing subassembly through the swing subassembly to the below of discharge gate (101) is equipped with grid baffle (10) that from top to bottom inclines to arrange.
6. The straw chopping and returning device as claimed in claim 5, wherein: the bottom of the inner cavity of the crushing box (1) is provided with two discharge ports (101), wherein one discharge port (101) is positioned under the roller (3), and the other discharge port (101) is positioned under the end part outlet (33); grid baffle (10) are located the grid arrangement mode of tip export (33) below and are radial arrangement for following the direction of grid baffle (10) downward sloping, be provided with on grid baffle (10) and fall to the material receiving channel (102) on grid baffle (10) top after the straw joins after the mincer that two discharge gates (101) are discharged.
7. The straw chopping and returning device as claimed in claim 6, wherein: the grid baffle (10) is connected to the rack (100) through a plurality of swing rods (11) and can swing and move relative to the rack (100) in a mode of keeping an inclination angle unchanged; the swing assembly comprises a rotary table (12) and a connecting rod (13), the rotary table (12) is rotatably installed on the rack (100), two ends of the connecting rod (13) are hinged to the rotary table (12) and the grid baffle (10) respectively, and the rotary table (12) is connected with the first rotation driving assembly through a fourth transmission mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810275845.XA CN108476754B (en) | 2018-03-30 | 2018-03-30 | Straw crushing and returning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810275845.XA CN108476754B (en) | 2018-03-30 | 2018-03-30 | Straw crushing and returning device |
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| CN108476754A CN108476754A (en) | 2018-09-04 |
| CN108476754B true CN108476754B (en) | 2021-12-21 |
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| CN201810275845.XA Active CN108476754B (en) | 2018-03-30 | 2018-03-30 | Straw crushing and returning device |
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| CN110419319B (en) * | 2019-09-05 | 2020-12-25 | 中国农业大学 | Straw multistage fine grinding and throwing returning device |
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