CN115529951A

CN115529951A - Straw pulverizer

Info

Publication number: CN115529951A
Application number: CN202211347059.9A
Authority: CN
Inventors: 邵雪萍; 赵俊杰
Original assignee: Gucheng County Shuangyin Machinery Co ltd
Current assignee: Gucheng County Shuangyin Machinery Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2022-12-30

Abstract

The invention relates to the technical field of agricultural machinery, and discloses a straw crusher which comprises a crusher body, wherein a straw feeding mechanism, a straw crushing mechanism and a crushing and discharging mechanism are sequentially arranged in the crusher body, a straw cutting mechanism is also arranged between the straw feeding mechanism and the straw crushing and crushing mechanism, the straw feeding mechanism comprises a first feeding roller and a second feeding roller which are arranged in parallel and rotate relatively, the first feeding roller and the second feeding roller are rotatably connected with the crusher body, the straw cutting mechanism comprises a first cutting knife rest and a second cutting knife rest which can move in a reciprocating and opposite manner, the first cutting knife rest and the second cutting knife rest are respectively provided with a first cutting blade and a second cutting blade, and the first feeding roller and the second feeding roller are respectively connected with the first cutting knife rest and the second cutting knife rest through a first driving rod and a second driving rod.

Description

Straw pulverizer

Technical Field

The invention relates to the technical field of agricultural machinery, in particular to a straw pulverizer.

Background

Straw is a general term for the stem and leaf (ear) part of a mature coated crop, and generally refers to the rest part of wheat, corn, rice, rape, potatoes, sugarcane and other coated crops after harvesting seeds. More than half of the products of photosynthesis of clothing crops exist in straws, and the straws are rich in nitrogen, phosphorus, potassium, calcium, magnesium, organic matters and the like, and are renewable biological resources with multiple purposes, for example, the straws are used as raw materials of biological granular fuels.

Crops are reaped by a reaping machine after being mature, a large amount of straws can be left after being reaped, the traditional treatment mode is to treat the straws by adopting an incineration method, but a large amount of dust and smog can be generated in the incineration process, air is seriously polluted, and meanwhile, the waste of resources is also caused. In order to solve the problems, the straws are generally collected on the market and then are processed into the biological granular fuel after being crushed, the straws are generally cut and crushed by a straw crusher, the most widely used hammer type crusher at present comprises a feeding mechanism, a crushing chamber and a discharging part, when the crusher works, the materials enter the crushing chamber from the feeding mechanism and are continuously beaten by a hammer sheet rotating at a high speed, meanwhile, the materials are strongly rubbed between a screen surface and the hammer sheet, and are gradually crushed under the repeated beating collision and rubbing action, and the crushed materials are discharged through a screen hole.

Because straws such as corn stalks or sorghum stalks are longer, when smashing, the straws are easily piled up at the feed inlet, the feed inlet is blocked, thereby the smashing efficiency is low, the consistency of the length of the smashed materials is hardly ensured only through striking and friction, adverse effects exist on the subsequent preparation of the biological granular fuel, therefore, the longer straws need to be cut into small sections with the same length through manpower before feeding, then the straws are put into the feed inlet to be smashed, the labor capacity of workers is increased, the smashing efficiency of the straws is reduced, and the production cost is increased.

Disclosure of Invention

The invention aims to provide a straw crusher which has the advantages of high crushing efficiency, good crushing effect, high automation degree, low labor intensity and the like.

The technical purpose of the invention is realized by the following technical scheme:

the utility model provides a straw rubbing crusher, includes the organism, be equipped with straw feeding mechanism, straw crushing mechanism in the organism in proper order and smash row material mechanism, still be equipped with straw cutting mechanism between straw feeding mechanism and the straw crushing mechanism, straw feeding mechanism includes parallel arrangement and relative rotation's feeding roller one and feeding roller two, feeding roller one and feeding roller two all rotate with the organism and are connected, straw cutting mechanism is including the relative cutting knife rest one and the cutting knife rest two that perhaps move in opposite directions that can reciprocate, be equipped with cutting blade one and cutting blade two on cutting knife rest one and the cutting knife rest two respectively, feeding roller one and feeding roller two are connected with cutting knife rest one and cutting knife rest two through actuating lever one and actuating lever two respectively.

By adopting the technical scheme, the straw feeding mechanism is used for automatically feeding longer straws into the machine body in sequence, the straw feeding mechanism utilizes extrusion force and friction force generated when the first feeding roller and the second feeding roller rotate relatively, the straws are extruded and generate downward pull force, originally fluffy tubular straws are axially crushed to form a thin plate shape, the volume of the straws entering the machine body is greatly reduced, the problem that the feed inlet is blocked due to the accumulation of the straws at the feed inlet is effectively solved, the first feeding roller and the second feeding roller rotate relatively and simultaneously drive the first cutting knife rest and the second cutting knife rest in the straw cutting device to do reciprocating relative motion or relative motion respectively through the first driving rod and the second driving rod, so as to drive the first cutting knife rest and the second cutting knife rest to do reciprocating relative motion or relative motion, the straws pressed into a uniform section shape are radially cut into uniform sections through the linkage of the first feeding mechanism and the second cutting device, the primarily crushed straws form uniform sections, the uniformity is good, the crushing efficiency and the crushing efficiency of the straw crushing mechanism are effectively improved, the labor intensity of the whole process is automatically, the crushing efficiency is high, in addition, the primary crushed straws can be prevented from being wound and being damaged in the primary crushing mechanism, and the straw crushing mechanism can be further prevented from being repeatedly collided in the use life.

The invention is further configured as follows: a guide rod perpendicular to the axial line of the first feeding roller and the axial line of the second feeding roller are arranged below the first cutting knife rest and the second cutting knife rest, the first cutting knife rest and the second cutting knife rest are respectively connected with the guide rod in an axial sliding mode through a first sliding block and a second sliding block, a first driving shaft and a second driving shaft are respectively arranged on the two end faces of the first feeding roller and the two end faces of the second feeding roller, the upper ends of the first driving rod and the second driving rod are respectively connected with the first driving shaft and the second driving shaft in a rotating mode, a third driving shaft and a fourth driving shaft are respectively arranged on the first cutting knife rest and the second cutting knife rest, and waist-shaped long holes connected with the third driving shaft and the fourth driving shaft in a rotating mode are respectively arranged at the lower ends of the first driving rod and the second driving rod.

Through adopting the technical scheme, two feeding rollers I and two feeding rollers II of the driving rod I and the driving rod II, and two groups of crank slider mechanisms which move relatively are formed after the cutting knife rest I and the cutting knife rest II are connected, so that when the feeding rollers I and the feeding rollers II rotate relatively, the driving rod I and the driving rod II are respectively driven to do circular motion with the connected end, the cutting knife rest I and the cutting knife rest II which are connected with the other ends of the driving rod I and the driving rod II move oppositely or reversely along the axial direction of the guide rod along with the slider I and the slider II, the cutting blade I and the cutting blade II which are fixed on the cutting knife rest I and the cutting knife rest II are driven to move oppositely or reversely in a reciprocating mode, and accordingly, the straw which is pressed into a thin plate shape is radially cut into uniform sections.

The invention is further provided with: the straw cutting machine is characterized in that guide plates are obliquely arranged at positions, located below the straw cutting mechanism, on two sides of the machine body respectively, the guide plates are arranged in the direction parallel to the axis direction of the first feeding roller and the axis direction of the second feeding roller, the upper ends of the guide plates are fixedly connected with the side wall of the machine body, the lower ends of the guide plates are located below the guide rods, two ends of each guide rod are fixed to the two guide plates respectively, and a feeding space is arranged between the lower ends of the two guide plates.

Through adopting above-mentioned technical scheme, the setting of stock guide mainly can play certain water conservancy diversion effect for by the space that the straw rubbing crusher constructs the place that the straw cutting mechanism cut up can fall into the straw smoothly along the feeding space between the lower extreme of two stock guides.

The invention is further configured as follows: the straw smashing and smashing mechanism comprises a central shaft and hammer sheets, the two ends of the central shaft are respectively connected with two opposite side walls of the machine body in a rotating mode, one end of the central shaft is connected with a driving motor, the central shaft is fixedly provided with a plurality of hammer sheet discs coaxial with the central shaft at equal intervals along the axis direction, a plurality of hammer sheets are uniformly distributed and fixed on the circumference of each hammer sheet disc, a sieve plate is arranged below the hammer sheets, and the bottom of the sieve plate is in a semi-cylindrical shape.

Through adopting above-mentioned technical scheme, the straw after the cutting falls into the space that straw crushing and smashing mechanism belonged to through the feeding space between the lower extreme of two stock guides, axle center axle is high-speed rotatory under driving motor's drive simultaneously, drive the hammer leaf and rotate along with the hammer leaf dish is synchronous high-speed, the hammer leaf pivoted in-process constantly strikes the collision repeatedly to the straw that gets into, the straw that falls on the sifting surface simultaneously receives the strong friction of hammer leaf and sieve again, under repeated striking collision and friction effect, the material is smashed gradually, discharge through the sieve mesh after smashing, utilize the sieve mesh to realize smashing the screening of back straw granule, thereby effectively guaranteed crushing effect.

The invention is further configured as follows: the two ends of the sieve plate extend upwards, one side, close to each other in length, of the sieve plate is bent and then hinged to the lower ends of the material guide plates on the two sides, a gravity hammer I and a gravity hammer II are arranged between the upper end of the sieve plate and the material guide plates on the two sides respectively after the upper end of the sieve plate is bent, the gravity hammer I and the gravity hammer II are fixed to the lower ends of a hammer rod I and the hammer rod II respectively, the upper ends of the hammer rod I and the hammer rod II penetrate through the material guide plates on the two sides respectively and extend upwards to be higher than the cutting knife rest I and the cutting knife rest II, and the middle portions of the hammer rod I and the hammer rod II are connected with the material guide plates on the two sides respectively in a rotating mode.

Through adopting above-mentioned technical scheme, the impact is realized rotating the point of being connected around it and stock guide rotation when gravity hammer one and gravity hammer two utilize self gravity and cutting knife rest one and cutting knife rest two reciprocal looks or reverse motion, thereby the realization is hammered repeatedly the sieve, make the sieve constantly vibrate, be favorable to making the straw granule on the sieve discharge from the sieve mesh, thereby further reduced the accumulational probability of straw granule on the sieve, effectively guaranteed the straw granule after smashing discharges fast, greatly increased the kibbling efficiency of straw.

The invention is further provided with: one end of the central shaft is provided with a first belt wheel, the first belt wheel is synchronously connected with a first feeding roller or a second belt wheel on a second feeding roller through a first synchronous belt, the same end of the first feeding roller or the second feeding roller is respectively provided with a first gear and a second gear which are meshed with each other, and the other end of the first feeding roller or the second feeding roller is connected with the other end of the central shaft through a second synchronous belt.

Through adopting above-mentioned technical scheme, the center pin drives feeding roller one or two synchronous rotations of feeding roller through hold-in range one when rotatory under driving motor's drive, makes feeding roller one and two relative rotations of feeding roller through intermeshing's gear one and gear two when feeding roller one or two are rotatory to realized the center pin and feeding roller one and two synchronous rotations of feeding roller, guaranteed that the feeding, smash go on in step, effectively reduced manufacturing cost.

The invention is further provided with: the first feeding roller and the second feeding roller are elastic rubber rollers, the surfaces of the first feeding roller and the second feeding roller are provided with convex patterns, and the circumferences of the sections of the first feeding roller and the second feeding roller are tangent.

Through adopting above-mentioned technical scheme, the elastic rubber roller has stronger elasticity, even guarantee between feeding roller one and the feeding roller two that the gap is very little or not have the gap can both be fine to the extrusion of the straw homoenergetic of different thicknesses, guarantee to need not to adjust the extrusion and the transport of the straw that the gap between two rollers can both adapt to not use the thickness, the equipment commonality is better, in addition, the convex line of feeding roller one and feeding roller two's surface setting can be better increase feeding roller one and the frictional force between feeding roller two and the straw, further propose extrusion force and the axial tension of straw, thereby further improved the feeding effect of straw.

The invention is further configured as follows: smash row material mechanism is including the hopper-shaped play hopper that is located bottom of the body, the bottom that goes out the hopper is equipped with the bin outlet, the bin outlet passes through the discharging pipe and is connected with screw conveyor's pan feeding mouth.

Through adopting above-mentioned technical scheme, the straw granule after smashing falls into in the discharging pipe via a hopper, and get into through the discharging pipe and carry the assigned position at screw conveyor, the straw granule is in sealed environment throughout in whole ejection of compact process and the transport, can prevent that the straw granule after smashing flies upward in the air, be favorable to reducing the dust pollution in the workshop, in addition, set up out the hopper to leak hopper into, can make the straw granule after smashing fall into the discharging pipe smoothly, effectively avoid the straw granule to pile up and influence the condition of smashing efficiency in the sieve below.

The beneficial effects of the invention are:

1. the straw feeding mechanism automatically and sequentially feeds longer straws into the machine body, the straw feeding mechanism utilizes extrusion force and friction force generated when the first feeding roller and the second feeding roller rotate relatively to extrude the straws and generate downward pull force, so that originally fluffy tubular straws are axially crushed to form a thin plate, the volume of the straws entering the machine body is greatly reduced, and the problem of blockage of a feed inlet due to accumulation of the straws at the feed inlet is effectively solved.

2. According to the invention, the straws are primarily crushed through the straw feeding mechanism and the straw cutting device, so that the primarily crushed straws have the same length and then enter the straw crushing mechanism to be repeatedly beaten and collided for further crushing, the problem that equipment is damaged due to the fact that longer straws are wound and stacked in the straw crushing mechanism can be effectively prevented, and the service life of the equipment is greatly prolonged.

3. According to the invention, the gravity hammer I and the gravity hammer II rotate around the point of the rotating connection with the material guide plate by utilizing the self gravity and the collision force when the cutting knife rest I and the cutting knife rest II reciprocate oppositely or reversely move, so that the sieve plate is repeatedly hammered, the sieve plate is continuously vibrated, straw particles on the sieve plate are favorably discharged from sieve pores, the probability that the straw particles are accumulated on the sieve plate is further reduced, the crushed straw particles are effectively ensured to be rapidly discharged, and the straw crushing efficiency is greatly increased.

4. In the invention, the first feeding roller and the second feeding roller are both elastic rubber rollers, the elastic rubber rollers have stronger elasticity, the first feeding roller and the second feeding roller can well extrude straws with different thicknesses even if gaps are small or no gaps exist between the first feeding roller and the second feeding roller, the gap between the two rollers can be adapted to the extrusion and conveying of straws with different thicknesses without adjusting, the equipment has better universality, in addition, the convex patterns arranged on the surfaces of the first feeding roller and the second feeding roller can better increase the friction force between the first feeding roller and the second feeding roller and the straws, the extrusion force and the axial tension of the straws are further promoted, and the feeding effect of the straws is further improved.

5. The crushed straw particles fall into the discharge pipe through the discharge hopper and enter the screw conveyor through the discharge pipe to be conveyed to a designated position, the straw particles are always in a sealed environment in the whole discharging process and conveying process, the crushed straw particles can be prevented from flying in the air, and the dust pollution in a workshop can be reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic sectional view of a straw pulverizer of the present invention.

Fig. 2 is a partially enlarged schematic view of a in fig. 1.

FIG. 3 is a schematic view of the external structure of a straw pulverizer of the present invention.

In the figure, 1, a machine body; 2. a straw feeding mechanism; 201. a feeding roller I; 202. a second feeding roller; 3. a straw crushing and smashing mechanism; 301. a central shaft; 302. a hammer sheet; 303. a drive motor; 304. a hammer plate; 305. a sieve plate; 4. a crushing and discharging mechanism; 401. a discharge hopper; 402. a discharge outlet; 403. a discharge pipe; 404. a screw conveyor; 5. a straw cutting mechanism; 501. a first cutting knife rest; 502. a second cutting tool rest; 503. a first cutting blade; 504. a second cutting blade; 505. a guide bar; 506. a first sliding block; 507. a second sliding block; 508. a first driving shaft; 509. a second driving shaft; 510. a third driving shaft; 511. a driving shaft IV; 512. a waist-shaped long hole; 6. a first driving rod; 7. a second driving rod; 8. a stock guide; 9. a first gravity hammer; 11. a gravity hammer II; 10. a first hammer rod; 12. a second hammer rod; 13. a first belt wheel; 14. a first synchronous belt; 15. a second belt wheel; 16. a first gear; 17. a second gear; 18. and a second synchronous belt.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

As shown in fig. 1 to 3, a straw pulverizer comprises a machine body 1, a straw feeding mechanism 2, a straw pulverizing and pulverizing mechanism 3 and a pulverizing and discharging mechanism 4 are sequentially arranged in the machine body 1, a straw cutting mechanism 5 is further arranged between the straw feeding mechanism 2 and the straw pulverizing and pulverizing mechanism 3, the straw feeding mechanism 2 comprises a first feeding roller 201 and a second feeding roller 202 which are arranged in parallel and rotate relatively, the first feeding roller 201 and the second feeding roller 202 are both rotatably connected with the machine body 1, the straw cutting mechanism 5 comprises a first cutting knife rest 501 and a second cutting knife rest 502 which can reciprocate relatively or move oppositely, the first cutting knife rest 501 and the second cutting knife rest 502 are respectively provided with a first cutting blade 503 and a second cutting blade 504, and the first feeding roller 201 and the second feeding roller 202 are respectively connected with the first cutting knife rest 501 and the second cutting knife rest 502 through a first driving rod 6 and a second driving rod 7.

Further, a guide rod 505 perpendicular to the axis of the first feeding roller 201 and the axis of the second feeding roller 202 are arranged below the first cutting knife rest 501 and the second cutting knife rest 502, the first cutting knife rest 501 and the second cutting knife rest 502 are axially and slidably connected with the guide rod 505 through a first slider 506 and a second slider 507, a first driving shaft 508 and a second driving shaft 509 are arranged on the end faces of the first feeding roller 201 and the second feeding roller 202 respectively, the upper ends of the first driving shaft 6 and the second driving shaft 7 are rotatably connected with the first driving shaft 508 and the second driving shaft 509 respectively, a third driving shaft 510 and a fourth driving shaft 511 are arranged on the first cutting knife rest 501 and the second cutting knife rest 502 respectively, and waist-shaped long holes 512 rotatably connected with the third driving shaft 510 and the fourth driving shaft 511 are arranged at the lower ends of the first driving shaft 6 and the second driving shaft 7 respectively.

Further, the two sides of the machine body 1 below the straw cutting mechanism 5 are respectively provided with a material guide plate 8 in an inclined manner, the material guide plates 8 are arranged along the axial direction parallel to the first feeding roller 201 and the second feeding roller 202, the upper end of the material guide plate 8 is fixedly connected with the side wall of the machine body 1, the lower end of the material guide plate 8 is located below the guide rod 505, the two ends of the guide rod 505 are respectively fixed on the two material guide plates 8, and a feeding space is arranged between the lower ends of the two material guide plates 8.

Further, the straw crushing and smashing mechanism 3 comprises a central shaft 301 and hammer sheets 302, the two ends of the central shaft 301 are respectively connected with the two opposite side walls of the machine body 1 in a rotating manner, one end of the central shaft 301 is connected with a driving motor 303, the central shaft 301 is fixedly provided with a plurality of hammer sheets 304 coaxial with the central shaft 301 along the axial direction at equal intervals, the hammer sheets 302 are uniformly distributed on the circumference of each hammer sheet 304, a sieve plate 305 is further arranged below the hammer sheets 302, and the bottom of the sieve plate 305 is in a shape of a semi-cylinder.

Furthermore, the two ends of the sieve plate 305 extend upwards, one side of the sieve plate, which is close to each other, is bent and then hinged to the lower ends of the material guide plates 8 on the two sides, the upper end of the sieve plate 305 is bent and then is respectively provided with a gravity hammer I9 and a gravity hammer II 11 with the material guide plates 8 on the two sides, the gravity hammer I9 and the gravity hammer II 11 are respectively fixed to the lower ends of a hammer rod I10 and a hammer rod II 12, the upper ends of the hammer rod I10 and the hammer rod II 12 respectively penetrate through the material guide plates 8 on the two sides and extend upwards to be higher than the cutting knife rest I501 and the cutting knife rest II 502, and the middle parts of the hammer rod I10 and the hammer rod II 12 are respectively rotatably connected with the material guide plates 8 on the two sides.

Furthermore, one end of the central shaft 301 is provided with a first belt wheel 13, the first belt wheel 13 is synchronously connected with a second belt wheel 15 on the first feeding roller 201 or the second feeding roller 202 through a first synchronous belt 14, the same end of the first feeding roller 201 or the second feeding roller 202 is respectively provided with a first gear 16 and a second gear 17 which are meshed with each other, and the other end of the first feeding roller 201 or the second feeding roller 202 is connected with the other end of the central shaft 301 through a second synchronous belt 18.

Further, the first feeding roller 201 and the second feeding roller 202 are elastic rubber rollers, the surfaces of the first feeding roller 201 and the second feeding roller 202 are provided with convex patterns, and the circumferences of the sections of the first feeding roller 201 and the second feeding roller 202 are tangent.

Further, smash row material mechanism 4 including the hopper-shaped play hopper 401 that is located organism 1 bottom, the bottom of going out hopper 401 is equipped with bin outlet 402, bin outlet 402 passes through discharging pipe 403 and is connected with screw conveyer 404's pan feeding mouth.

The working principle of the invention is as follows: firstly, straws are sequentially and longitudinally put into a straw feeding mechanism 2, the straw feeding mechanism 2 extrudes the straws and generates downward pulling force by utilizing extrusion force and friction force when a first feeding roller 201 and a second feeding roller 202 rotate relatively, the originally fluffy tubular straws are axially crushed to form a thin plate shape, then the first feeding roller 201 and the second feeding roller 202 rotate relatively to respectively drive a first driving rod 6 and a second driving rod 7 to do circular motion with the connected end thereof, so that a first cutting knife rest 501 and a second cutting knife rest 502 connected with the other ends of the first driving rod 6 and the second driving rod 7 move axially or reversely along a first sliding block and a second sliding block along a guide rod, thereby driving the first cutting knife rest 501 and the second cutting knife rest 504 fixed on the first cutting knife rest 501 and the second cutting knife rest 502 to do reciprocating opposite or reverse motion, thereby realizing that the straws pressed into a uniform section shape by a thin plate are radially cut into a uniform section shape, realizing primary crushing of the straws, the primary crushing of the straws after the primary crushing, the straws fall into a crushing mechanism 3 along a feeding space between the lower ends of the first feeding plate 501 and the second cutting knife rest 502 to realize that the straws collide with a first sieve plate 305 and a grain discharging hopper 401 directly rotate along a gravity hammer to realize that the sieve plate 305 and a grain discharging hopper 401 connects with a grain discharging hopper 401 through a grain hammer.

Claims

1. The utility model provides a straw pulverizer, includes organism (1), be equipped with straw feeding mechanism (2), straw crushing and smashing rubbing crusher structure (3) and smash row material mechanism (4), its characterized in that in proper order in organism (1): still be equipped with straw cutting mechanism (5) between straw feeding mechanism (2) and the crushing mechanism of straw (3), straw feeding mechanism (2) are including parallel arrangement and relative rotatory feed roller (201) and feed roller two (202), feed roller (201) and feed roller two (202) all rotate with organism (1) and are connected, straw cutting mechanism (5) are including reciprocal relative or cutting knife rest (501) and cutting knife rest two (502) of motion in opposite directions, be equipped with cutting blade (503) and cutting blade two (504) on cutting knife rest (501) and the cutting knife rest two (502) respectively, feed roller (201) and feed roller two (202) are connected with cutting knife rest (501) and cutting knife rest two (502) through actuating lever (6) and actuating lever two (7) respectively.

2. The straw pulverizer as claimed in claim 1, wherein: the lower part of cutting knife rest (501) and cutting knife rest (502) is equipped with guide bar (505) perpendicular to the axis of feeding roller (201) and feeding roller (202), cutting knife rest (501) and cutting knife rest (502) are respectively through slider (506) and slider (507) and guide bar (505) axial sliding connection, be equipped with drive shaft (508) and drive shaft (509) on feeding roller (201) and feeding roller (202) terminal surface respectively, the upper end of drive rod (6) and drive rod (7) rotates with drive shaft (508) and drive shaft (509) respectively and is connected, be equipped with drive shaft three (510) and drive shaft four (511) on cutting knife rest (501) and cutting knife rest (502) respectively, the lower extreme of drive rod (6) and drive rod two (7) is equipped with drive shaft three (510) and drive shaft four (511) rotation connection's waist type slot hole (512) respectively.

3. The straw pulverizer of claim 2, wherein: the straw cutting machine is characterized in that material guide plates (8) are obliquely arranged at positions, below the straw cutting mechanism (5), of two sides of the machine body (1) respectively, the material guide plates (8) are arranged along the axis direction parallel to the first feeding roller (201) and the second feeding roller (202), the upper ends of the material guide plates (8) are fixedly connected with the side wall of the machine body (1), the lower ends of the material guide plates (8) are located below guide rods (505), two ends of the guide rods (505) are fixed on the two material guide plates (8) respectively, and feeding spaces are arranged between the lower ends of the material guide plates (8).

4. The straw pulverizer as claimed in claim 1, wherein: straw crushing mechanism (3) are including center pin (301) and hammer leaf (302), the both ends of center pin (301) are rotated with organism (1) relative both sides wall respectively and are connected, the one end and the driving motor (303) of center pin (301) are connected, center pin (301) are fixed along the equidistant hammer leaf dish (304) that are equipped with a plurality of and center pin (301) coaxial along axis direction, and evenly distributed is fixed with a plurality of on the circumference of each hammer leaf dish (304) hammer leaf (302), hammer leaf (302) below sets up sieve (305) in addition, the bottom of sieve (305) is half cylinder.

5. A straw shredder according to claim 3 or claim 4, characterised in that: the two ends of the sieve plate (305) extend upwards, one side, close to each other, of each sieve plate is bent, and then the two ends of each sieve plate (305) are hinged to the lower ends of the material guide plates (8) on the two sides, a gravity hammer I (9) and a gravity hammer II (11) are arranged between the upper end of the sieve plate (305) and the material guide plates (8) on the two sides respectively after the upper end of the sieve plate (305) is bent, the gravity hammer I (9) and the gravity hammer II (11) are fixed to the lower ends of a hammer rod I (10) and a hammer rod II (12) respectively, the upper ends of the hammer rod I (10) and the hammer rod II (12) penetrate through the material guide plates (8) on the two sides respectively and extend upwards to be higher than the cutting knife rest I (501) and the cutting knife rest II (502), and the middle parts of the hammer rod I (10) and the hammer rod II (12) are rotatably connected with the material guide plates (8) on the two sides respectively.

6. The straw pulverizer as claimed in claim 5, wherein: one end of the central shaft (301) is provided with a first belt wheel (13), the first belt wheel (13) is synchronously connected with a second belt wheel (15) on the first feeding roller (201) or the second feeding roller (202) through a first synchronous belt (14), the same end of the first feeding roller (201) or the second feeding roller (202) is respectively provided with a first gear (16) and a second gear (17) which are meshed with each other, and the other end of the first feeding roller (201) or the second feeding roller (202) is connected with the other end of the central shaft (301) through a second synchronous belt (18).

7. The straw pulverizer as claimed in claim 1, wherein: the feeding roller I (201) and the feeding roller II (202) are elastic rubber rollers, the surfaces of the feeding roller I (201) and the feeding roller II (202) are provided with convex patterns, and the circumferences of the sections of the feeding roller I (201) and the feeding roller II (202) are tangent.

8. The straw pulverizer as claimed in claim 1, wherein: smash row material mechanism (4) including hopper-shaped play hopper (401) that are located organism (1) bottom, the bottom of going out hopper (401) is equipped with bin outlet (402), bin outlet (402) are connected with the pan feeding mouth of screw conveyer (404) through discharging pipe (403).