阅读说明：本技术 一种农用拖拉机驱动的玉米秸秆粉碎装置及其工作方法 (Corn straw smashing device driven by agricultural tractor and working method thereof ) 是由 柳李旺 张小敏 黄凯 刘勇 李�杰 于 2021-08-23 设计创作，主要内容包括：本发明涉及农业机械技术领域,具体为一种农用拖拉机驱动的玉米秸秆粉碎装置及其工作方法,包括农用拖拉机以及粉碎箱,粉碎箱的底部固定设置有秸秆排料筒,粉碎箱包括：脱粒仓、秸秆粉碎仓、以及秸秆切割仓,秸秆切割仓的内部滑动设置有传动块,传动块的内部转动设置有异形齿轮,农用拖拉机上的拖拉机驱动轮与第一皮带轮转动连接,蜗轮上转动连接有辅助齿轮,辅助齿轮上的辅助皮带轮与异形齿轮转动连接。本发明拖拉机驱动轮带动整个粉碎箱的作业,在对玉米秸秆进行粉碎的过程中,粉碎的秸秆会被输送到农用拖拉机的底部,可以减少生成的粉尘扩散到空气中,进而可以减少身体受到的伤害,同时方便对粉碎的秸秆进行收集。(The invention relates to the technical field of agricultural machinery, in particular to a corn straw smashing device driven by an agricultural tractor and a working method thereof, wherein the corn straw smashing device comprises the agricultural tractor and a smashing box, a straw discharging cylinder is fixedly arranged at the bottom of the smashing box, and the smashing box comprises: threshing warehouse, straw crushing storehouse and straw cutting storehouse, the inside slip in straw cutting storehouse is provided with the transmission piece, and the inside rotation of transmission piece is provided with special-shaped gear, and the tractor drive wheel on the agricultural tractor rotates with first belt pulley to be connected, rotates on the worm wheel to be connected with auxiliary gear, and auxiliary belt pulley and special-shaped gear on the auxiliary gear rotate to be connected. The tractor driving wheel drives the whole crushing box to operate, and in the process of crushing the corn straws, the crushed straws are conveyed to the bottom of the agricultural tractor, so that the dust generated can be reduced from diffusing into the air, the harm to the body can be reduced, and the crushed straws can be conveniently collected.)

1. The utility model provides an agricultural tractor driven maize straw reducing mechanism, includes agricultural tractor (2) and fixes crushing case (1) on agricultural tractor (2), its characterized in that, the fixed straw that is provided with in bottom of crushing case (1) is arranged material section of thick bamboo (14), crushing case (1) includes:

the threshing device comprises a threshing bin (101), wherein the inside of the threshing bin (101) is rotatably connected with a threshing roller (9) through a transmission roller (10), the threshing bin (101) is communicated with a corn collecting bin (102), and the bottom of the corn collecting bin (102) is provided with a corn discharging hole (20);

the straw crushing bin (103) is internally and rotatably provided with a first crushing roller (3) and a second crushing roller (4), one end of the first crushing roller (3) is fixedly provided with a first belt pulley (301) and a first gear (302), one end of the second crushing roller (4) is provided with a second gear (402) corresponding to the first gear (302), the first gear (302) is meshed with the second gear (402), and the first gear (302) is rotatably connected with the second gear (402); and

the straw cutting bin (105), a transmission block (22) is arranged inside the straw cutting bin (105) in a sliding mode, a special-shaped gear (8) is arranged inside the transmission block (22) in a rotating mode, a second belt pulley (801) is fixedly arranged at one end of the special-shaped gear (8), the second belt pulley (801) is arranged on the outer side face of the crushing bin (1), a straw cleaning piece (12) is fixedly arranged on the upper side face of the transmission block (22), the straw cleaning piece (12) penetrates through the straw discharging cylinder (14) and extends into the straw discharging cylinder (14), a cutting knife (13) is fixedly arranged on one side face, close to the straw cleaning piece (12), of the transmission block (22), and the cutting knife (13) is of a V-shaped structure;

tractor drive wheel (201) on agricultural tractor (2) pass through the belt with first belt pulley (301) rotate and connect, it is connected with auxiliary gear (5) to rotate on worm wheel (401), auxiliary belt pulley (501) on auxiliary gear (5) pass through the belt with special-shaped gear (8) rotate and connect.

2. An agricultural tractor driven corn stalk shredder as claimed in claim 1, wherein: keep away from second gear (402) one side of second crushing roller (4) is provided with worm wheel (401), rotate on worm wheel (401) and be provided with transfer line (6), the one end of transfer line (6) be provided with worm (601) that worm wheel (401) meshing is connected, worm (601) with worm wheel (401) rotate and are connected, the other end of transfer line (6) is fixed and is provided with first conical gear (602), it is provided with straw thumb wheel (7) to rotate on first conical gear (602), be provided with on straw thumb wheel (7) with second conical gear (701) that first conical gear (602) rotate the connection.

3. An agricultural tractor driven corn stalk shredder as claimed in claim 2, wherein: smash case (1) and keep away from a side of agricultural tractor (2) is provided with thumb wheel protection arm (104), transfer line (6) rotate the setting and are in the inside of thumb wheel protection arm (104).

4. An agricultural tractor driven corn stalk shredder as claimed in claim 1, wherein: storehouse (102) is collected to the maize with it is provided with filter screen (18) to fix between storehouse (103) is smashed to the straw, filter screen (18) are the mesh screen that the iron wire was worked out, just the aperture of mesh screen is less than the diameter of maize.

5. An agricultural tractor driven corn stalk shredder as claimed in claim 1, wherein: smash the upper end of case (1) and fixedly be provided with visual window (19), visual window (19) go up to rotate and are provided with collection storehouse top cap (11), the inside of visual window (19) is fixed and is provided with first fan (16).

6. An agricultural tractor driven corn stalk shredder as claimed in claim 1, wherein: the threshing roller (9) is provided with a transmission thread (902) which is connected with the transmission roller (10) in a meshed mode, and one end, far away from the transmission roller (10), of the threshing roller (9) is provided with a plurality of centrosymmetric threshing teeth (901).

7. An agricultural tractor driven corn stalk shredder as claimed in claim 1, wherein: the straw is arranged a material section of thick bamboo (14) with storehouse (103) is smashed to the straw is linked together, the bottom mounting who smashes case (1) is provided with cutting knife protection arm (21), cutting knife (13) set up the centre of cutting knife protection arm (21), the fixed second fan (17) that is provided with in top of cutting knife protection arm (21), second fan (17) with a material section of thick bamboo (14) is arranged to the straw is linked together.

8. An agricultural tractor driven corn stalk shredder as claimed in claim 1, wherein: be provided with a plurality of first crushing tooth (303) that become centrosymmetric on the lateral surface of first crushing roller (3), be provided with a plurality of second crushing tooth (403) that become centrosymmetric on the lateral surface of second crushing roller (4), first crushing tooth (303) with second crushing tooth (403) are crisscross the setting each other.

9. An agricultural tractor driven corn stalk shredder as claimed in claim 1, wherein: the straw is arranged a material section of thick bamboo (14) and is kept away from waste material mouth (15) have been seted up to the one end in straw cutting storehouse (105), waste material mouth (15) are seted up the downside of a material section of thick bamboo (14) is arranged to the straw, a material section of thick bamboo (14) are arranged to the straw sets up the bottom of agricultural tractor (2).

10. A working method of a corn straw smashing device driven by an agricultural tractor is characterized in that: the method comprises the following steps:

the method comprises the following steps: after the agricultural tractor (2) is started, the tractor driving wheel (201) on the agricultural tractor (2) can simultaneously drive the first belt pulley (301) and the transmission roller (10) to rotate, the first belt pulley (301) can drive the second gear (402) to rotate, the second gear (402) can drive the auxiliary gear (5) to rotate, the auxiliary gear (5) drives the second belt pulley (801) to rotate through a belt, the cutting knife protection arm (21) at the bottom of the crushing box (1) is pushed forward, the special-shaped gear (8) drives the transmission block (22) to move back and forth, the cutting knife protection arm (13) inside the cutting knife protection arm (21) moves back and forth under the driving of the cutting knife transmission block (22), and then corn straws can be cut, the cut corn straws are dumped towards the direction of the crushing box (1);

step two: the straws are poured onto the crushing box (1), the corns on the straws are threshed under the stirring of the threshing roller (9), slide into the corn collecting bin (102) through the threshing bin (101), the state of the corns is observed through the visual window (19) on the crushing box (1), and when the corns are full of the corn collecting bin (102), the corns can be discharged through the corn discharging hole (20) at the bottom of the corn collecting bin (102);

step three: when the corn is threshed in the threshing bin (101), the crushed straws can fall into the straw crushing bin (103) through the filter screen (18), and the residual straws can be rolled into the straw crushing bin (103) by the straw thumb wheel (7) in the thumb wheel protection arm (104) after the corn is cut;

step four: after the straw is rolled into the inside of straw crushing storehouse (103), by crisscross setting each other first crushing tooth (303) with smash tooth (403) and smash, the straw after smashing passes through storehouse (103) is smashed to the straw and slides in the inside of straw discharge tube (14), when transmission block (22) is when the shrink, on transmission block (22) straw clearance spare (12) can with the inside accumulational straw of straw discharge tube (14) is released from waste gate (15), discharges the straw after smashing to agricultural tractor (2) bottom.

Technical Field

The invention relates to a crushing device and a working method thereof, in particular to a corn straw crushing device driven by an agricultural tractor and a working method thereof, and belongs to the technical field of agricultural machinery.

Background

As a high-yield food crop in China, corn is an important feed source in animal husbandry and breeding industry, is one of indispensable raw materials in food, medical health, chemical industry and the like, has a plurality of biological activities such as oxidation resistance, tumor resistance, blood sugar reduction, immunity improvement, bacteriostasis, sterilization and the like, and has wide development and application prospects.

The corn straw treatment method mainly comprises direct burning, straw returning and straw recycling, the direct burning of the straw not only pollutes the environment, but also causes resource waste, the straw returning on the spot is adopted, the power consumption is large, the operation cost is higher, and more importantly, the seeding of the next crop in the non-single-season planting area is difficult.

Consequently still consider the convenience of retrieving when smashing corn stalk, traditional harvester is when clearing up corn stalk, often can directly spill the straw after smashing on the field, and the smoke and dust polluted air that produces causes the serious injury of health, scatters the each department in field simultaneously, and the collection of being not convenient for influences the normal seeding of other crops, and large-scale combine also can influence the structure of soil owing to bulky moreover.

Therefore, there is a need for an improved corn stalk shredder to solve the above-mentioned problems.

Disclosure of Invention

The invention aims to provide a corn straw smashing device driven by an agricultural tractor and a working method thereof.

In order to achieve the purpose, the invention adopts the main technical scheme that:

the utility model provides an agricultural tractor driven maize straw reducing mechanism, includes agricultural tractor and fixes the crushing case on agricultural tractor, the fixed straw that is provided with in bottom of crushing case is arranged a material section of thick bamboo, and crushing case is fixed in the place ahead of agricultural tractor to drive the work of whole crushing case through the tractor drive wheel on the agricultural tractor, simple structure promotes the maize greatly and reaps and the kibbling efficiency of straw, and crushing case includes:

the inner part of the threshing bin is rotatably connected with a threshing roller through a driving roller, the threshing bin is communicated with a corn collecting bin, and the bottom of the corn collecting bin is provided with a corn discharging hole;

the threshing roller is provided with a transmission thread meshed with the transmission roller, and one end of the threshing roller, which is far away from the transmission roller, is provided with a plurality of centrosymmetric threshing teeth;

through the technical scheme, the threshing bin is arranged above the crushing box, the threshing rollers are arranged inside the threshing bin, the driving rollers can be driven to rotate by the rotation of the driving rollers in the process that the driving wheels of the tractor drive the driving rollers through the first belt pulley, so that corns on the straws can be rolled and separated, the threshing rollers are provided with threshing teeth, the corns can be collected into the corn collecting bin in the corn rotating process, and the corns do not need to be manually separated, so that the harvesting efficiency can be improved;

the straw crushing bin is internally and rotatably provided with a first crushing roller and a second crushing roller, one end of the first crushing roller is fixedly provided with a first belt pulley and a first gear, one end of the second crushing roller is provided with a second gear corresponding to the first gear, the first gear is meshed with the second gear, and the first gear is rotatably connected with the second gear;

a worm wheel is arranged on one side face, away from the second crushing roller, of the second gear, a transmission rod is arranged on the worm wheel in a rotating mode, a worm meshed with the worm wheel is arranged at one end of the transmission rod, the worm is connected with the worm wheel in a rotating mode, a first conical gear is fixedly arranged at the other end of the transmission rod, a straw shifting wheel is arranged on the first conical gear in a rotating mode, and a second conical gear connected with the first conical gear in a rotating mode is arranged on the straw shifting wheel;

a thumb wheel protection arm is arranged on one side surface of the crushing box, which is far away from the agricultural tractor, and a transmission rod is rotatably arranged inside the thumb wheel protection arm;

through the technical scheme, after the bottom of the corn is cut, the whole straw wall of the corn is inclined backwards and rolled by the straw shifting wheel on the shifting wheel protection arm, namely, the straw shifting wheel is driven by the first belt pulley to shift the corn straw into the straw crushing bin;

a plurality of first crushing teeth which are centrosymmetric are arranged on the outer side surface of the first crushing roller, a plurality of second crushing teeth which are centrosymmetric are arranged on the outer side surface of the second crushing roller, and the first crushing teeth and the second crushing teeth are arranged in a staggered mode;

the first crushing roller and the second crushing roller are arranged in the straw crushing bin, and the first crushing teeth on the first crushing roller and the second crushing teeth on the second crushing roller are arranged in a staggered mode, so that corn straws can be rolled between the first crushing roller and the second crushing roller and crushed;

a waste material port is formed in one end, away from the straw cutting bin, of the straw discharge cylinder, the waste material port is formed in the lower side surface of the straw discharge cylinder, and the straw discharge cylinder is arranged at the bottom of the agricultural tractor;

the straw crushing bin is communicated with the straw discharge barrel, and crushed corn straws can be discharged into the straw discharge barrel along the straw crushing bin and are discharged to the bottom of the agricultural tractor from the inside of the straw discharge barrel, so that the harm of fine dust to human bodies is reduced, and the operation safety is improved;

the straw cutting bin is internally provided with a transmission block in a sliding manner, a special-shaped gear is rotatably arranged in the transmission block, one end of the special-shaped gear is fixedly provided with a second belt pulley, the second belt pulley is arranged on the outer side surface of the crushing box, a straw cleaning piece is fixedly arranged on the upper side surface of the transmission block, the straw cleaning piece penetrates through the straw discharging cylinder and extends into the straw discharging cylinder, a cutting knife is fixedly arranged on one side surface of the transmission block, which is close to the straw cleaning piece, and the cutting knife is of a V-shaped structure;

through the technical scheme, the inside of the straw cutting bin is provided with the transmission block, the inside of the transmission block is provided with the special-shaped gear in a rotating way, the first belt pulley drives the second gear to rotate in a rotating process, the second gear drives the auxiliary belt pulley to rotate, and the auxiliary belt pulley drives the special-shaped gear to rotate through the belt, so that extra power is not needed to be used, resources are saved, the environment-friendly energy of the lifting device is facilitated, the special-shaped gear is of a special-shaped structure, the special-shaped gear can drive the transmission block to do reciprocating motion in a circulating way in a rotating process, when the transmission block does reciprocating motion, on one hand, the cutting knife can be pushed forwards, the bottom of the corn straw can be conveniently cut in a pushing way, the harvesting efficiency is improved, on the other hand, in a moving process of the transmission block, the straw cleaning piece above the transmission block can push the straw in the straw discharging cylinder to a waste material port on the straw discharging cylinder, the transmission block also has the function of cleaning the straw discharge cylinder, so that the straw discharge cylinder is prevented from being blocked, manual cleaning is not needed, the operation efficiency is greatly improved, and the discharged straws can be stacked together, so that the straw smashing box is convenient to collect and arrange at the later stage;

a tractor driving wheel on the agricultural tractor is rotationally connected with a first belt pulley through a belt, an auxiliary gear is rotationally connected on a worm gear, and an auxiliary belt pulley on the auxiliary gear is rotationally connected with a special-shaped gear through a belt;

the tractor driving wheel on the farm tractor is adopted to directly drive the whole crushing box to operate, no extra power is needed, and the resource and economic cost are saved.

A filter screen is fixedly arranged between the corn collecting bin and the straw crushing bin, the filter screen is a mesh screen woven by iron wires, and the aperture of the mesh screen is smaller than the diameter of the corn;

a visible window is fixedly arranged at the upper end of the crushing box, a collecting bin top cover is rotatably arranged on the visible window, and a first fan is fixedly arranged inside the visible window;

through above technical scheme, can blow into the inside that the storehouse was smashed to the straw after smashing under the effect of first fan to discharge from the straw row silo, the inside in storehouse is collected to maize grain etc. sliding in maize, can observe the state of maize through visual window, prevent that the maize in the maize collection storehouse from excessively filling up, collect the storehouse top cap and can prevent that the straw granule after smashing from dispersing to the air in, influence staff's healthy.

Preferably, the straw discharge cylinder is communicated with the straw crushing bin, a cutting knife protection arm is fixedly arranged at the bottom end of the crushing bin, the cutting knife is arranged in the middle of the cutting knife protection arm, a second fan is fixedly arranged above the cutting knife protection arm, and the second fan is communicated with the straw discharge cylinder;

the inside of a straw discharge cylinder can be directly arranged into after smashing in the straw crushing storehouse to the straw after smashing to arrange the outside of smashing the case through a straw discharge cylinder, cutting knife protection arm can carry out effectual protection to the cutting knife, prevent that the cutting knife from appearing suddenly and causing the incised wound to the staff, promote the security of using, the second fan can be discharged the straw after smashing through a straw discharge cylinder, avoid the straw to lead to the fact the jam to a straw discharge cylinder as far as, promote the efficiency of operation.

A working method of a corn straw smashing device driven by an agricultural tractor comprises the following steps:

the method comprises the following steps: after the agricultural tractor is started, the tractor driving wheel on the agricultural tractor can simultaneously drive the first belt pulley and the transmission roller to rotate, the first belt pulley can drive the second gear to rotate, the second gear can drive the auxiliary gear to rotate, the auxiliary gear drives the second belt pulley to rotate through a belt, the cutting knife protection arm at the bottom of the crushing box is pushed forwards, the special-shaped gear drives the transmission block to move forwards and backwards, the cutting knife in the cutting knife protection arm moves forwards and backwards under the driving of the transmission block, so that the corn straws can be cut, and the cut corn straws are toppled towards the direction of the crushing box;

step two: the straws can be poured onto the crushing box, the corns on the straws are threshed under the stirring of the threshing roller, slide into the corn collecting bin through the threshing bin, the corn state is observed through the visible window on the crushing box, and when the corn collecting bin is full of corns, the corns can be discharged through the corn discharging port at the bottom of the corn collecting bin;

step three: when the corn is threshed in the threshing bin, the crushed straws can fall into the straw crushing bin through the filter screen, and meanwhile, after the corn is cut, the residual straws can be rolled into the straw crushing bin by the straw thumb wheel in the thumb wheel protection arm;

step four: after the straws are rolled into the straw smashing bin, the first smashing teeth and the second smashing teeth are arranged in a staggered mode, the smashed straws slide into the straw discharging barrel through the straw smashing bin, when the transmission block contracts, the straw cleaning piece on the transmission block can push out the piled straws in the straw discharging barrel from a waste material opening, and the smashed straws are discharged to the bottom of the agricultural tractor.

The invention has at least the following beneficial effects:

1. the tractor drive wheel through on the agricultural tractor drives the operation of whole crushing case, can cut the maize, thresh and straw crushing etc. operation, carries out kibbling in-process to maize straw, and kibbling straw can be carried agricultural tractor's bottom, can reduce the dust that generates and spread to the air, and then can reduce the harm that the health received, and the convenience is collected kibbling straw simultaneously.

2. Can drive the cyclic reciprocating motion of transmission piece at dysmorphism gear revolve's in-process, can impel the cutting knife forward on the one hand when the transmission piece carries out reciprocating motion, be convenient for carry out impulse type cutting to corn stalk's bottom, promote the efficiency of reaping, on the other hand is at the in-process of transmission piece motion, the straw clearance piece of transmission piece top can push away the straw of straw row material section of thick bamboo inside to the waste material mouth on the straw row material section of thick bamboo, and arrange the outside of smashing the case with kibbling straw through the waste material mouth, consequently, the transmission piece still has the function of clearing up the straw row material section of thick bamboo simultaneously, prevent that the straw row material section of thick bamboo from being blockked up, need not the manual work and clear up, promote the efficiency of operation greatly, and the straw of discharging can be piled up together, make things convenient for later stage collection and arrangement.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a transmission structural diagram of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is a schematic view of a first crushing roller of the present invention;

FIG. 5 is a top view of the first pulverizing roller of the present invention;

FIG. 6 is a left side view of the drive block of the present invention;

FIG. 7 is a top view of the drive block of the present invention.

In the figure, 1-crushing box, 101-threshing bin, 102-corn collecting bin, 103-straw crushing bin, 104-thumb wheel protecting arm, 105-straw cutting bin, 2-agricultural tractor, 201-tractor driving wheel, 3-first crushing roller, 301-first belt pulley, 302-first gear, 303-first crushing tooth, 4-second crushing roller, 401-worm wheel, 402-second gear, 403-second crushing tooth, 5-auxiliary gear, 501-auxiliary belt pulley, 6-transmission rod, 601-worm, 602-first conical gear, 7-straw thumb wheel, 701-second conical gear, 8-special-shaped gear, 801-second belt pulley, 9-threshing roller, 901-threshing tooth, 902-transmission thread, 10-driving roller, 11-collecting bin top cover, 12-straw cleaning piece, 13-cutting knife, 14-straw discharging cylinder, 15-waste material port, 16-first fan, 17-second fan, 18-filter screen, 19-visible window, 20-corn discharging port, 21-cutting knife protection arm and 22-driving block.

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

As shown in fig. 1-7, the agricultural tractor-driven corn stalk crushing device and the working method thereof provided by this embodiment includes an agricultural tractor 2 and a crushing box 1 fixed on the agricultural tractor 2, the bottom of the crushing box 1 is fixedly provided with a stalk discharge cylinder 14, the crushing box 1 is fixed in front of the agricultural tractor 2, and drives the whole crushing box 1 to work through a tractor driving wheel 201 on the agricultural tractor 2, the structure is simple, the efficiency of corn harvesting and stalk crushing is greatly improved, and the crushing box 1 includes:

the threshing device comprises a threshing bin 101, wherein the inside of the threshing bin 101 is rotatably connected with a threshing roller 9 through a driving roller 10, the threshing bin 101 is communicated with a corn collecting bin 102, and the bottom of the corn collecting bin 102 is provided with a corn discharging hole 20;

a driving thread 902 engaged with the driving roller 10 is arranged on the threshing roller 9, and a plurality of centrosymmetric threshing teeth 901 are arranged at one end of the threshing roller 9 far away from the driving roller 10;

a threshing bin 101 is arranged above the crushing box 1, a plurality of threshing rollers 9 are arranged inside the threshing bin 101, in the process that a driving roller 10 is driven by a tractor driving wheel 201 through a first belt pulley 301, the driving roller 10 can drive the threshing rollers 9 to rotate, so that corns on straws can be rolled and separated, threshing teeth 901 are arranged on the threshing rollers 9, the corns can be collected into the corn collecting bin 102 in the rotating process of the corns, manual separation is not needed, and therefore harvesting efficiency can be improved;

the straw crushing bin 103 is characterized in that a first crushing roller 3 and a second crushing roller 4 are rotatably arranged inside the straw crushing bin 103, a first belt pulley 301 and a first gear 302 are fixedly arranged at one end of the first crushing roller 3, a second gear 402 corresponding to the first gear 302 is arranged at one end of the second crushing roller 4, the first gear 302 is meshed with the second gear 402, and the first gear 302 is rotatably connected with the second gear 402;

a worm wheel 401 is arranged on one side surface, away from the second crushing roller 4, of the second gear 402, a transmission rod 6 is arranged on the worm wheel 401 in a rotating mode, a worm 601 meshed with the worm wheel 401 is arranged at one end of the transmission rod 6, the worm 601 is connected with the worm wheel 401 in a rotating mode, a first conical gear 602 is fixedly arranged at the other end of the transmission rod 6, a straw shifting wheel 7 is arranged on the first conical gear 602 in a rotating mode, and a second conical gear 701 connected with the first conical gear 602 in a rotating mode is arranged on the straw shifting wheel 7;

a thumb wheel protection arm 104 is arranged on one side surface of the crushing box 1 far away from the agricultural tractor 2, and the transmission rod 6 is rotatably arranged inside the thumb wheel protection arm 104;

after the bottom of the corn is cut, the whole straw wall of the corn is tilted backwards, and then the whole straw wall is rolled by the straw dial wheel 7 on the dial wheel protection arm 104, namely, the straw dial wheel 7 is driven by the first belt pulley 301 to dial the corn straws into the straw crushing bin 103;

a plurality of first crushing teeth 303 which are centrosymmetric are arranged on the outer side surface of the first crushing roller 3, a plurality of second crushing teeth 403 which are centrosymmetric are arranged on the outer side surface of the second crushing roller 4, and the first crushing teeth 303 and the second crushing teeth 403 are arranged in a staggered manner;

the first crushing roller 3 and the second crushing roller 4 are arranged in the straw crushing bin 103, and the first crushing teeth 303 on the first crushing roller 3 and the second crushing teeth 403 on the second crushing roller 4 are arranged in a staggered manner, so that the corn straws can be rolled between the first crushing roller 3 and the second crushing roller 4 and crushed;

a waste material port 15 is formed at one end of the straw discharge cylinder 14, which is far away from the straw cutting bin 105, the waste material port 15 is formed at the lower side surface of the straw discharge cylinder 14, and the straw discharge cylinder 14 is arranged at the bottom of the agricultural tractor 2;

further, the straw crushing bin 103 is communicated with the straw discharge cylinder 14, and the crushed corn straws can be discharged into the straw discharge cylinder 14 along the straw crushing bin 103 and discharged to the bottom of the agricultural tractor 2 from the inside of the straw discharge cylinder 14, so that the damage of fine dust to a human body is reduced, and the operation safety is improved;

the straw cutting bin 105 is internally provided with a transmission block 22 in a sliding manner, the transmission block 22 is internally provided with a special-shaped gear 8 in a rotating manner, one end of the special-shaped gear 8 is fixedly provided with a second belt pulley 801, the second belt pulley 801 is arranged on the outer side surface of the crushing box 1, the upper side surface of the transmission block 22 is fixedly provided with a straw cleaning piece 12, the straw cleaning piece 12 penetrates through the straw discharging cylinder 14 and extends into the straw discharging cylinder 14, a cutting knife 13 is fixedly arranged on one side surface of the transmission block 22 close to the straw cleaning piece 12, and the cutting knife 13 is of a V-shaped structure;

furthermore, a transmission block 22 is arranged inside the straw cutting bin 105, a special-shaped gear 8 is rotatably arranged inside the transmission block 22, the first belt pulley 301 drives the second gear 402 to rotate in the rotating process, the second gear 402 drives the auxiliary belt pulley 501 to rotate, and the auxiliary belt pulley 501 drives the special-shaped gear 8 to rotate through a belt, so that extra power is not needed to be used, resource saving is facilitated, the environment-friendly performance of the lifting device is improved, the special-shaped gear 8 is of a special-shaped structure, the circular reciprocating motion of the transmission block 22 can be driven in the rotating process of the special-shaped gear 8, the cutting knife 13 can be pushed forwards when the transmission block 22 reciprocates, the bottom of corn straws can be conveniently pushed and cut, the harvesting efficiency is improved, on the other hand, in the moving process of the transmission block 22, the straw cleaning piece 12 above the transmission block 22 can push the straws inside the straw discharging cylinder 14 to the waste material port 15 on the straw discharging cylinder 14, the crushed straws are discharged to the outside of the crushing box 1 through the waste material port 15, so that the transmission block 22 also has the function of cleaning the straw discharge cylinder 14, the straw discharge cylinder 14 is prevented from being blocked, manual cleaning is not needed, the operation efficiency is greatly improved, and the discharged straws can be stacked together, so that later-stage collection and arrangement are facilitated;

a tractor driving wheel 201 on the agricultural tractor 2 is rotationally connected with a first belt pulley 301 through a belt, an auxiliary gear 5 is rotationally connected on a worm wheel 401, and an auxiliary belt pulley 501 on the auxiliary gear 5 is rotationally connected with a special-shaped gear 8 through a belt;

the tractor driving wheel 201 on the agricultural tractor 2 is adopted to directly drive the whole crushing box 1 to operate without using extra power, thereby being beneficial to saving resources and economic cost.

A filter screen 18 is fixedly arranged between the corn collecting bin 102 and the straw crushing bin 103, the filter screen 18 is a mesh screen woven by iron wires, and the aperture of the mesh screen is smaller than the diameter of the corn;

a visible window 19 is fixedly arranged at the upper end of the crushing box 1, a collecting bin top cover 11 is rotatably arranged on the visible window 19, and a first fan 16 is fixedly arranged inside the visible window 19;

can blow into the inside in straw crushing storehouse 103 under the effect of first fan 16 with the straw after smashing to discharge from straw row material section of thick bamboo 14, the inside of storehouse 102 is collected to the smooth maize of advancing such as kernel of corn, can observe the state of maize through visual window 19, prevent that the maize in the maize storehouse 102 is collected to be overfilled, collect storehouse top cap 11 and can prevent that the straw granule after smashing from dispersing to the air in, influence staff's is healthy.

In this embodiment, as shown in fig. 3, the straw discharging cylinder 14 is communicated with the straw crushing bin 103, a cutting knife protection arm 21 is fixedly arranged at the bottom end of the crushing box 1, the cutting knife 13 is arranged in the middle of the cutting knife protection arm 21, a second fan 17 is fixedly arranged above the cutting knife protection arm 21, and the second fan 17 is communicated with the straw discharging cylinder 14;

the inside of a straw discharge cylinder 14 can be directly arranged into after smashing the straw after smashing in straw smashing storehouse 103 to arrange the outside of smashing case 1 through a straw discharge cylinder 14, cutting knife protection arm 21 can carry out effectual protection to cutting knife 13, prevent that cutting knife 13 from appearing suddenly and causing the cut injury to the staff, promote the security of use, second fan 17 can arrange a material 14 discharge through the straw with the straw after smashing, avoid the straw to arrange a material 14 to the straw as far as and cause the jam, promote the efficiency of operation.

As shown in fig. 1 to 7, the working method of the agricultural tractor-driven corn stalk crushing device provided by the embodiment includes the following steps:

the method comprises the following steps: after the agricultural tractor 2 is started, the tractor driving wheel 201 on the agricultural tractor 2 can simultaneously drive the first belt pulley 301 and the transmission roller 10 to rotate, the rotation of the first belt pulley 301 can drive the second gear 402 to rotate, the rotation of the second gear 402 can drive the auxiliary gear 5 to rotate, the auxiliary gear 5 drives the second belt pulley 801 to rotate through a belt, the cutting knife protection arm 21 at the bottom of the crushing box 1 is pushed forward, the special-shaped gear 8 drives the transmission block 22 to move back and forth, the cutting knife 13 in the cutting knife protection arm 21 moves back and forth under the driving of the transmission block 22, so that the corn straws can be cut, and the cut corn straws are toppled towards the direction of the crushing box 1;

step two: the straws are poured onto the crushing box 1, the corns on the straws are threshed under the stirring of the threshing roller 9, slide into the corn collecting bin 102 through the threshing bin 101, the corn state is observed through the visible window 19 on the crushing box 1, and when the corn collecting bin 102 is full of the corns, the corns can be discharged through the corn discharging hole 20 at the bottom of the corn collecting bin 102;

step three: when the corn is threshed in the threshing bin 101, the crushed straws can fall into the straw crushing bin 103 through the filter screen 18, and meanwhile, after the corn is cut, the rest straws can be rolled into the straw crushing bin 103 by the straw thumb wheel 7 in the thumb wheel protection arm 104;

step four: after the straw is brought into the inside of straw crushing storehouse 103, smash by the first tooth 303 of smashing and the second tooth 403 of smashing that sets up crisscross each other, the straw after smashing slides into the inside of straw material discharge cylinder 14 through straw crushing storehouse 103, when the transmission block 22 is when the shrink, straw clearance spare 12 on the transmission block 22 can be released the inside accumulational straw of straw material discharge cylinder 14 from waste gate 15, arrange the straw after smashing to the 2 bottoms of farm tractor.

As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to achieve the technical effect basically.

It is noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of additional like elements in the article or system in which the element is included.

The foregoing description shows and describes several preferred embodiments of the invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.