CN215122256U - Threshing device with coaxial multiple rollers and turnable threshing cutter teeth - Google Patents

Abstract

The utility model discloses a threshing device with coaxial multi-roller and turnable threshing cutter teeth, which comprises an upper shell and a lower shell, wherein the upper shell and the lower shell are covered to form a threshing cavity, and a threshing roller is arranged in the threshing cavity; the threshing cylinder comprises a threshing knife toothed bar, a first spoke disc and a second spoke disc; the threshing cutter toothed bars are provided with a plurality of threshing cutter toothed bars, and each threshing cutter toothed bar comprises a cutter toothed bar and different threshing cutter tooth combinations used for threshing different crops in the circumferential direction of the cutter toothed bar; the two ends of the cutter toothed bar are respectively provided with an overturning mounting plate, and the threshing cutter toothed bars are detachably mounted between the first spoke disc and the second spoke disc through the overturning mounting plates at the two ends; each threshing cutter tooth combination comprises a plurality of threshing teeth, and the threshing teeth are arranged on the cutter tooth rod along the length direction of the cutter tooth rod. The crops enter the threshing cavity through the material inlet, the threshing cavity is threshed by a threshing cylinder, and the threshed grain particles are discharged through a bottom screen; the threshed straws are crushed and then discharged through the straw discharge port, and the threshing effect is high.

Description

Threshing device with coaxial multiple rollers and turnable threshing cutter teeth

Technical Field

The utility model relates to the technical field of agricultural machinery, more specifically say and relate to a thresher of coaxial many cylinders threshing teeth that can overturn.

Background

With the continuous acceleration of the urbanization degree of China, a great amount of labor personnel in rural areas are transformed into urban population, so that a great amount of loss of rural farming and harvesting labor is caused, and a great amount of popularization and application of more innovative and practical agricultural machines are needed, so that various agricultural machines such as crop threshing machines, crop seeding machines, land plowing, rotary tillage machines and the like are promoted.

The traditional method for threshing crops such as wheat, rice, rape, sorghum, highland barley, coix seed, mung bean, soybean and the like adopts manual threshing or single mechanical threshing, so that the threshing machine has high labor intensity, more threshing machines purchased by farmers are used, the threshing is not clean in separation and cleaning, and the crop straws cannot be crushed. The threshing machine is a post-harvest treatment machine, is mainly suitable for farmers in hilly and mountainous areas to thresh, separate and clean grains and crush straws, and has different types according to different grains and crops, such as a rice and wheat threshing machine for threshing rice and wheat, a rape threshing machine for threshing rape, a sorghum threshing machine for threshing sorghum, a soybean threshing machine for threshing soybeans and the like.

The invention patent with the application number of CN201410801261.3 discloses a novel environment-friendly multi-crop straw smashing and returning thresher, which comprises a rack, a power output mechanism, a belt and a threshing cylinder, wherein the threshing cylinder is installed on the rack, the power output mechanism is connected with the threshing cylinder through the belt, the threshing cylinder comprises a front threshing cylinder and a rear threshing cylinder, and further comprises a power clutch device, the power clutch device comprises a power frame, an installation body, a fixed rod and a movable rod, the installation body is slidably installed on the power frame, the fixed rod is installed on the power frame, the movable rod is connected onto the installation body, the power output mechanism is installed on the installation body, the belt is located between the fixed rod and the movable rod, the movable rod is clamped or put down with the belt along with the movement of the installation body and the cooperation of the fixed rod, and the power frame is installed on the rack. The invention has clean and thorough threshing, and does not need to close the power output mechanism when moving the thresher.

In the patent, the threshing cutter teeth on the threshing cylinder are only in one specification form and are fixedly arranged on the threshing cylinder, and the threshing cutter teeth are adopted for crops such as wheat, rice, rape, sorghum, highland barley, soybean and the like, so that the threshing effect is poor, and the production cost is high.

Meanwhile, when some crops with longer straws are threshed, the straws are not easy to discharge from the straw discharge port due to the longer straws, and the straws can be left in the thresher, so that the load of the thresher is increased, the energy consumption loss is large, and the thresher is stopped. After the machine is stopped, the user needs to clear the straws and then operates the machine, time and labor are wasted, and the user feels uncomfortable in use.

In addition, compared with the existing threshing machine, the rear threshing cylinder is additionally provided with the movable blade, the rack is provided with the fixed blade, and the movable blade and the fixed blade form a cutting and crushing area of crop straws so as to conveniently cut the crop straws. Because two tandem threshing cylinders are arranged in the patent, the manufacturing cost is increased, the threshing and deslagging are not smooth, a threshing bin is easy to block, and the maintenance is troublesome.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model aims to provide a threshing device with multiple coaxial cylinders and reversible threshing cutter teeth, wherein a threshing cylinder is arranged in a threshing cavity of the threshing device, different threshing cutter tooth combinations for threshing different crops are arranged on the threshing cylinder in the circumferential direction of a cutter tooth rod, when which kind of crops are needed to be threshed, the threshing cutter tooth combinations suitable for the crops are selected to be mounted in a turnover mode, and the threshing cutter tooth combinations are mounted at the outer end of the threshing cylinder, so that certain types of crops are threshed in a targeted mode, the threshing effect is improved, the crops are threshed cleanly, the grain yield is increased, and the threshing selection is wider; meanwhile, the straw discharging mechanism is arranged, so that the threshed straws are discharged smoothly, and the threshing device is prevented from stopping due to the fact that the straws block the outlet; in addition, the threshing device is only provided with one transmission main shaft, so that the threshing device can be driven to have the functions of threshing, straw chopping and grass discharging, and the threshing device is low in equipment cost and simple to maintain.

In order to realize the above purpose, the utility model discloses a technical scheme:

a threshing device with multiple coaxial rollers and turnable threshing cutter teeth comprises an upper shell and a lower shell, wherein the upper shell and the lower shell are covered to form a threshing cavity, a material inlet and a grass discharge port which are communicated with the outside are formed in the threshing cavity, a crop threshing feeding guide plate and a grass discharge guide plate are respectively installed at the material inlet and the grass discharge port, a bottom sieve is installed at the bottom end of the threshing cavity, and a threshing roller is installed in the threshing cavity;

the threshing cylinder comprises a threshing knife toothed bar, a first spoke disc and a second spoke disc; the threshing cutter tooth bars are provided with a plurality of threshing cutter tooth bars, and each threshing cutter tooth bar comprises a cutter tooth bar and different threshing cutter tooth combinations used for threshing different crops in the circumferential direction of the cutter tooth bar; the two ends of the cutter toothed bar are respectively provided with an overturning mounting plate, and the threshing cutter toothed bars are detachably mounted between the first spoke disc and the second spoke disc through the overturning mounting plates at the two ends; each threshing cutter tooth combination comprises a plurality of threshing teeth, and the threshing teeth are arranged on the cutter tooth rod along the length direction of the cutter tooth rod.

Furthermore, the threshing cylinder also comprises a grass discharging mechanism positioned at the outer end of the second spoke disc, and the grass discharging mechanism, the first spoke disc and the second spoke disc are in transmission connection through a transmission main shaft.

Further, the grass discharging mechanism comprises a third spoke plate and a plurality of grass discharging toothed bars;

the third spoke disc is positioned at the outer end of the second spoke disc and is coaxial with the second spoke disc, transmission spindle holes are formed in the centers of the first spoke disc, the second spoke disc and the third spoke disc, and the transmission spindle sequentially penetrates through the transmission spindle holes of the first spoke disc, the second spoke disc and the third spoke disc and then is connected with a transmission wheel;

the grass discharging toothed bars are arranged between the second spoke disc and the third spoke disc along the circumferential direction of the spoke disc, a plurality of grass discharging teeth are arranged on the grass discharging toothed bars along the length direction of the grass discharging toothed bars, and the grass discharging teeth face the outer ends of the spoke disc in the circumferential direction.

Furthermore, the threshing device further comprises a vibrating screen mechanism, the vibrating screen mechanism comprises a scale multistage vibrating tail screen and an eccentric vibrating rod, the scale multistage vibrating tail screen is installed at the grass discharge port, a channel at the lower end of a screen hole of the scale multistage vibrating tail screen is communicated to the lower side of the bottom screen, one end of the eccentric vibrating rod is connected with the transmission main shaft, and the other end of the eccentric vibrating rod is connected with the scale multistage vibrating tail screen.

Further, threshing cutter tooth combination includes that the first cutter tooth combination of threshing and the second cutter tooth combination of threshing that carried on the back mutually on cutter tooth pole circumferencial direction, first threshing cutter tooth combination includes a plurality of cutter teeth of threshing along cutter tooth pole length direction, the second is threshed cutter tooth combination and is included a plurality of arch teeth of threshing along cutter tooth pole length direction.

The threshing cutter teeth are of a quadrilateral plate-shaped structure perpendicular to the length direction of the cutter tooth rod, the inner end face of the quadrilateral plate-shaped structure is connected with the side wall of the cutter tooth rod, the outer end face of the quadrilateral plate-shaped structure extends outwards, the left side face and the right side face incline towards the outer end face to enable the plate-shaped structure to gradually shrink outwards, and a plurality of movable cutter teeth are arranged on one of the left side face and the right side face.

Further, the threshing arch teeth are bent rod-shaped structures perpendicular to the length direction of the cutter tooth rod, the bent rod-shaped structures shrink from inside to outside, one ends of the bent rod-shaped structures are connected with the side walls of the cutter tooth rod, and the bent rod-shaped structures extend outwards after being connected and are bent inwards to be connected with the side walls of the cutter tooth rod.

Further, a plurality of feeding guide plates for spirally conveying materials to the grass discharging opening are arranged in the upper shell; the lower shell is provided with a plurality of fixed knives corresponding to the threshing knives on the threshing cylinder, the fixed knives are provided with fixed knife teeth, and the fixed knives and the threshing knives on the threshing cylinder are arranged in a staggered mode.

Further, the overturning mounting plate is perpendicular to the length direction of the cutter tooth rod, extends towards the outer end of the side wall of the cutter tooth rod, and is provided with a plurality of first bolt holes;

the threshing cutter tooth bars are arranged between the first spoke disc and the second spoke disc along the circumferential direction of the spoke disc, a plurality of second bolt holes are formed in the first spoke disc and the second spoke disc along the circumferential direction of the first spoke disc and the second spoke disc, and connecting bolts penetrate through the first bolt holes and the second bolt holes and then are connected with nuts.

Furthermore, the left end and the right end of the cutter toothed bar are respectively provided with a limiting block, and the limiting blocks are positioned on the outer side of the turnover mounting plate; a plurality of limiting holes are formed in the first spoke disc and the second spoke disc in the circumferential direction, and the limiting blocks are inserted into the limiting holes.

The utility model has the advantages that:

1. compared with the prior art, the utility model discloses install reversible multi-purpose threshing cylinder in threshing cavity, install the different sword tooth combinations of threshing that are used for threshing different crops on the sword ratch circumferencial direction of threshing cylinder, the combination of sword tooth of threshing can adopt the sword tooth, the arch tooth, combinations such as spike tooth, when needing to thresh to which kind of crops, just select the combination of this sword tooth of threshing of upset installation, will thresh the sword tooth combination and install the threshing cylinder outer end, thresh to the pertinence to certain type crops, improve threshing effect, make crops thresh totally, increase grain output.

2. The utility model discloses in, through being provided with grass discharging mechanism, be used for smashing the straw on the one hand, on the other hand is used for discharging the straw of smashing from grass discharging port, makes the smooth thresher that discharges of straw after threshing, prevents that the straw from plugging up the export and causing thresher to shut down, still has the function of separating once more and cleaning grain granule.

3. In the utility model, crops enter the threshing cavity through the material inlet, are threshed in the threshing cavity through the threshing cylinder, and the threshed grain particles are discharged through the bottom screen; the straw after threshing is cut up by the stationary knife, is smashed by row grass tooth, discharges from row grass mouth at last, and exhausted straw can directly bury deeply still field, can pile up the fermentation with practical yeast and make organic farm manure, need not burn or transport and handle in the family, neither can the contaminated air, has saved the labour again, has just carried out shredding to the straw when threshing, and is simple and convenient, labour saving and time saving is the environmental protection again.

4. The utility model discloses in, arrange grass mouthful department and install the multistage vibrating tail sieve of fish scale, the transmission main shaft drives the motion of eccentric vibrating arm, and eccentric vibrating arm drives the multistage vibrating tail sieve vibration of fish scale again, and the grain granule of arranging grass mouthful department falls into in the passageway of end sieve below through the sieve mesh of the multistage vibrating tail sieve of fish scale to reach the purpose of separating kibbling straw and grain, prevent that grain granule from arranging grass mouthful and kibbling straw and discharging in the lump, reach granule grain and return the storehouse, practice thrift grain.

5. The utility model discloses in, be provided with a plurality of stationary knives that correspond with threshing cylinder's threshing cutter on the casing down, be provided with stationary knife tooth on the stationary knife, threshing cylinder's threshing cutter uses with the stationary knife cooperation, and threshing cylinder's last threshing cutter and stationary knife form the cutting of a crop straw and smash the region to reach the purpose of cutting up crop straw.

6. The utility model discloses in, the mutual dislocation setting of threshing cutter on stationary knife and the threshing cylinder, the cutting crushing region that stationary knife and the threshing cutter that misplace each other set up is just like the scissors cut the straw short breakage, smashes efficiently, smashes effectually.

7. The utility model discloses in, be provided with a plurality of pay-off guide plates to row's grass mouthful auger delivery material in the casing to carry crop straw to the row's grass mouth of rear end, on the way carrying, thresh and cut up, discharge from row's grass mouth at last.

8. The utility model discloses in, will thresh the sword ratch demountable installation through connecting bolt between first spoke dish and second spoke dish to in the selective installation of the combination of threshing teeth.

9. In the utility model, one transmission main shaft is matched with a plurality of structures, the threshing cylinder has the functions of threshing multiple crops, cutting up straws and discharging grass, and replaces the traditional single threshing machine and the traditional single crusher; saves a great deal of expense for buying agricultural machinery and equipment for farmers.

Drawings

Fig. 1 is a top view of the utility model with the upper case opened;

fig. 2 is a side view of the present invention;

FIG. 3 is a schematic view of the structure of the threshing cylinder of the present invention;

FIG. 4 is a schematic structural view of the toothed bar of the threshing knife of the present invention;

fig. 5 is a schematic structural diagram of a first spoke plate and a second spoke plate of the present invention;

reference numerals:

1. a threshing cylinder; 10. a threshing knife toothed bar; 101. a cutter tooth bar; 102. overturning the mounting plate; 103. a first threshing cutter tooth combination; 104. the second threshing cutter tooth combination; 105. threshing cutter teeth; 106. threshing arch teeth; 107. moving cutter teeth; 108. a first bolt hole; 109. a limiting block; 11. a first spoke disk; 111. a second bolt hole; 112. a limiting hole; 113. a transmission spindle hole; 12. a second spoke pan; 13. a connecting bolt; 14. a transmission main shaft; 15. a driving wheel; 16. a third spoke pan; 17. a straw discharge toothed bar; 171. grass discharging teeth; 2. an upper housing; 21. a material inlet; 22. a grass discharge port; 23. a feed baffle; 3. a lower housing; 31. a bottom screen; 32. fixing a cutter; 4. a vibrating screen mechanism; 41. multilevel vibrating tail sieve for fish scales; 42. an eccentric vibrating rod.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below with reference to the embodiments and the accompanying drawings, so as to fully understand the objects, the features, and the effects of the present invention.

Example 1

A threshing device with coaxial multi-roller and reversible threshing cutter teeth is shown in figures 1-5 and comprises an upper shell 2 and a lower shell 3, wherein the upper shell 2 and the lower shell 3 are covered to form a threshing cavity, a material inlet 21 and a grass discharge port 22 which are communicated with the outside are formed in the threshing cavity, a bottom sieve 31 is arranged at the bottom end of the threshing cavity, and a threshing roller 1 is arranged in the threshing cavity;

the threshing cylinder 1 comprises a threshing knife toothed bar 10, a first spoke disc 11 and a second spoke disc 12; a plurality of threshing knife toothed bars 10 are arranged, and each threshing knife toothed bar 10 comprises a knife toothed bar 101 and different threshing knife tooth combinations used for threshing different crops in the circumferential direction of the knife toothed bar 101; the two ends of the cutter toothed bar 101 are respectively provided with an overturning mounting plate 102, and the threshing cutter toothed bars 10 are detachably mounted between the first radial disc 11 and the second radial disc 12 through the overturning mounting plates 102 at the two ends; each threshing cutter tooth combination comprises a plurality of threshing teeth, and the threshing teeth are arranged on the cutter tooth rod 101 along the length direction of the cutter tooth rod 101.

In this embodiment, the upper housing 2 and the lower housing 3 can be rotatably mounted in a hinge manner, the upper housing 2 and the lower housing 3 are covered to form a threshing cavity, the material inlet 21 is used for feeding crops, the straw discharge port 22 is used for discharging straws after threshing, the bottom sieve 31 is used for sieving grain particles after threshing, and the threshing cylinder 1 is used for threshing.

The threshing knife toothed bar 10 is used for threshing crops, specifically, the knife toothed bar 101 is used for installing a threshing knife tooth combination, and the overturning installation plate 102 is used for detachably installing the knife toothed bar 101 on the first spoke disc 11 and the second spoke disc 12 at two ends. In addition, different threshing cutter tooth combinations for threshing different crops are arranged in the circumferential direction of the cutter tooth rod 101, when the crops need to be threshed, the threshing cutter tooth combinations are installed in a turnover mode, the threshing cutter tooth combinations are installed at the outer end of the threshing cylinder through the turnover installation plate 102, and therefore certain types of crops are threshed in a targeted mode, and the threshing effect is improved.

Example 2

In this embodiment, a further improvement is made on the basis of embodiment 1, as shown in fig. 3, the threshing cylinder further includes a grass discharging mechanism located at the outer end of the second spoke disk 12, and the grass discharging mechanism, the first spoke disk 11 and the second spoke disk 12 are in transmission connection with a transmission main shaft 14.

The grass discharging mechanism comprises a third spoke plate 16 and a plurality of grass discharging toothed bars 17; the third spoke disk 16 is positioned at the outer end of the second spoke disk 12 and is coaxial with the second spoke disk 12, transmission spindle holes are formed in the centers of the first spoke disk 11, the second spoke disk 12 and the third spoke disk 16, and the transmission spindle 14 sequentially penetrates through the transmission spindle holes of the first spoke disk 11, the second spoke disk 12 and the third spoke disk 16 and then is connected with the transmission wheel 15; the grass discharging toothed bars 17 are arranged between the second spoke plate 12 and the third spoke plate 16 along the circumferential direction of the spoke plate, a plurality of grass discharging teeth 171 are arranged on the grass discharging toothed bars 17 along the length direction of the grass discharging toothed bars, and the grass discharging teeth 171 face the outer ends of the spoke plate in the circumferential direction.

In this embodiment, grass discharging mechanism is used for smashing the straw on the one hand, and on the other hand is used for discharging the straw that smashes from arranging the grass mouth, makes the smooth thresher that discharges of straw after threshing, prevents that the straw from plugging up the export and causing thresher to shut down, still has the function of separating once more and cleaning grain granule in addition. Meanwhile, the four threshing knife toothed bars 10 and the four grass discharging toothed bars 17 are driven by a transmission main shaft 14, and crops are threshed and discharged after being smashed, so that a power transmission mechanism is saved, and the equipment cost is saved. In addition, the grass discharge teeth 171 of the present embodiment are relatively dense at the grass discharge opening, so as to discharge the crushed straw smoothly from the grass discharge opening 22.

The transmission main shaft 14 is used for driving the first spoke disc 11, the second spoke disc 12 and the third spoke disc 16 to rotate, further driving the threshing cutter toothed bar 10 between the first spoke disc 11 and the second spoke disc 12 to rotate, and the grass discharging toothed bar 17 between the second spoke disc 12 and the third spoke disc 16 to rotate, so that threshing teeth on the threshing cutter toothed bar 10 rotate, crops are threshed by the threshing teeth rotating at a high speed, and meanwhile, grass discharging teeth 171 on the grass discharging toothed bar 17 rotate at a high speed to discharge grass. The driving wheel 15 is used for being connected with a power source, the driving wheel 15 is driven to rotate by the power source, the threshing cylinder is further driven to rotate, the driving wheel 15 can adopt driving wheels in the forms of belt pulleys, chain wheels or gears, and the like, and conventional selection can be carried out according to actual driving requirements.

In the embodiment, the first spoke disc 11, the second spoke disc 12 and the threshing knife toothed bar 10 form a first roller for threshing and crushing crops; the second spoke disk 12, the third spoke disk 16 and the grass discharging toothed bar 17 form a second roller for threshing, crushing and discharging the grass, so that a multi-roller structure is formed; similarly, the third and fourth rollers can be redesigned according to different crops.

Example 3

In this embodiment, a further improvement is made on the basis of embodiment 2, as shown in fig. 1 and 2, the threshing device further includes a vibrating screen mechanism 4, the vibrating screen mechanism 4 includes a fish scale multistage vibrating tail screen 41 and an eccentric vibrating rod 42, the fish scale multistage vibrating tail screen 41 is installed at the grass discharge port 22, a channel at the lower end of a screen hole of the fish scale multistage vibrating tail screen 41 is communicated to the lower side of the bottom screen 31, one end of the eccentric vibrating rod 42 is connected with the transmission main shaft 14, and the other end of the eccentric vibrating rod is connected with the fish scale multistage vibrating tail screen 41.

When the threshing device is used, straws are thrown out by the straw discharge teeth 171 which rotate at a high speed, and grains are discharged together, so that more grains are accumulated at the straw accumulation position on the ground, and the defect is overcome. Specifically, the transmission main shaft 14 drives the eccentric vibrating rod 42 to move, and the eccentric vibrating rod 42 drives the scale multistage vibrating tail screen 41 to vibrate, so that grain particles on a grass discharge channel at the grass discharge port 22 fall into a channel below the bottom screen 31 through screen holes of the scale multistage vibrating tail screen 41, the crushed straw and the grain are separated, and the grain particles are prevented from being discharged from the grass discharge port 22 and the crushed straw and accumulated on the ground.

Example 4

In this embodiment, a further improvement is made on the basis of embodiment 3, as shown in fig. 3 and 4, two sets of threshing teeth combination are provided, specifically including a first threshing teeth combination 103 and a second threshing teeth combination 104 that are opposite to each other in the circumferential direction of the teeth bar 101, the first threshing teeth combination 103 includes a plurality of threshing teeth 105 along the length direction of the teeth bar 101, and the second threshing teeth combination 104 includes a plurality of threshing arcuate teeth 106 along the length direction of the teeth bar 101.

The threshing cutter teeth 105 are of a quadrilateral plate-shaped structure perpendicular to the length direction of the cutter tooth rod 101, the inner end face of the quadrilateral plate-shaped structure is connected with the side wall of the cutter tooth rod 101, the outer end face of the quadrilateral plate-shaped structure extends outwards, the left side face and the right side face are inclined towards the outer end face to enable the plate-shaped structure to gradually shrink outwards, and a plurality of movable cutter teeth 107 are arranged on one of the left side face and the right side face to facilitate cutting of straws of crops. This embodiment is through setting up the threshing cutter tooth 105 of above-mentioned form to be applicable to the threshing of crops such as rape, soybean, mung bean, seed of job's tears, because this type of crop straw is sturdy, takes toughness, and above-mentioned threshing cutter tooth can reach the shredded straw, and the effect of threshing simultaneously makes this type of crops thresh cleanly.

The threshing arch-shaped teeth 106 are bent rod-shaped structures vertical to the length direction of the cutter tooth rod 101, the bent rod-shaped structures shrink from inside to outside, one ends of the bent rod-shaped structures are connected with the side wall of the cutter tooth rod 101, and the bent rod-shaped structures extend outwards and are bent inwards to be connected with the side wall of the cutter tooth rod 101 after being connected. This embodiment is through setting up the bow tooth 106 of threshing of above-mentioned form to be applicable to the threshing of crops such as rice, wheat, sorghum, because this type of crop straw is softer, fragile, and above-mentioned bow tooth of threshing can this kind of crops thresh cleanly.

In addition, the threshing teeth can be arranged as spike teeth, and the spike teeth are not described in detail in the embodiment.

Example 5

In this embodiment, a further improvement is made on the basis of embodiment 4, as shown in fig. 1 and 2, a plurality of feeding guide plates 23 for spirally conveying materials to the straw discharge port 22 are arranged in the upper housing 2, so as to convey the crop straws to the straw discharge port 22 at the rear end, and during the conveying process, the crop straws are threshed and chopped and finally discharged from the straw discharge port.

Be provided with a plurality of stationary knives 32 that correspond with the threshing knife on threshing cylinder 1 on the casing 3 down, be provided with the stationary knife tooth on the stationary knife 32, threshing knife and stationary knife 32 cooperation on the threshing cylinder 1 are used, threshing knife and stationary knife 32 on the threshing cylinder 1 form the cutting of a crop straw and smash the region, in order to reach the purpose of cutting up the crop straw, exhaust straw can directly bury deeply still field, do not need to burn or transport and return to the processing in the family, can not air pollution, the labour has been saved again, just handle the straw when threshing, and is simple and convenient, time saving and labor saving.

The fixed knives 32 and the threshing knives on the threshing cylinder 1 are arranged in a staggered mode, and the cutting and crushing area formed by the fixed knives 32 and the threshing knives arranged in a staggered mode is as if the straws are cut short and crushed by scissors, so that the crushing efficiency is high, and the crushing effect is good.

Example 6

The embodiment is further improved on the basis of the embodiment 5, as shown in fig. 3-5, the turnover mounting plate 102 is perpendicular to the length direction of the cutter tooth bar 101, the turnover mounting plate 102 extends towards the outer end of the side wall of the cutter tooth bar 101, and a plurality of first bolt holes 108 are formed in the extending part;

a plurality of threshing knife ratchets 10 are installed between first spoke dish 11 and second spoke dish 12 along spoke dish circumferencial direction, have all seted up a plurality of second bolt holes 111 along its circumferencial direction on first spoke dish 11 and the second spoke dish 12, and connecting bolt 13 passes behind first bolt hole 108 and the second bolt hole 111 and is connected with the nut.

This embodiment is provided with two first bolt holes 108 along sword tooth pole 101 axial symmetry to it corresponds with two sets of threshing teeth combination, when needs use which set of threshing teeth combination to thresh, just utilize connecting bolt 13 to pass the first bolt hole 108 that this set of threshing teeth combination corresponds, and be connected with the nut behind the second bolt hole 111 on first spoke dish 11 and the second spoke dish 12, will this set of threshing teeth combination install threshing cylinder outer end, thresh with some types of crops with the pertinence, improve threshing performance.

Example 7

In this embodiment, a further improvement is made on the basis of embodiment 6, as shown in fig. 3-5, the left and right ends of the cutter tooth bar 101 are both provided with a limiting block 109, and the limiting blocks 109 are located outside the turnover mounting plate 102; a plurality of limiting holes 112 are formed in the first spoke disk 11 and the second spoke disk 12 in the circumferential direction, and the limiting blocks 109 are inserted into the limiting holes 112 to fix the cutter tooth bar 101 and prevent the cutter tooth bar from moving relative to the spoke disks.

For better understanding, the utility model discloses, following is to the theory of operation of the utility model make a complete description:

when the threshing device is used, the power source drives the transmission wheel 15 to rotate, the transmission wheel 15 drives the transmission main shaft 14 to rotate, the transmission main shaft 14 drives the first spoke disc 11, the second spoke disc 12 and the third spoke disc 16 to rotate, and further drives the threshing knife toothed bar 10 and the grass discharging toothed bar 17 to rotate around the transmission main shaft 14, so that the threshing teeth and the grass discharging teeth 171 on the threshing knife toothed bar rotate at a high speed around the transmission main shaft 14.

Crops enter the threshing cavity through the material inlet 21, are threshed through threshing teeth rotating at a high speed on the threshing cylinder 1, and meanwhile, straws are cut into pieces by utilizing the threshing teeth and the fixed knife 32; the threshed grain particles are collected by the bottom screen 31, the cut straws are broken and threshed again by the straw discharge teeth 171 of the straw discharge mechanism, and finally the broken straws are discharged by the straw discharge port 22.

When the machine works, the transmission main shaft 14 drives the eccentric vibrating rod 42 to move, the eccentric vibrating rod 42 drives the scale multistage vibrating tail screen 41 to vibrate, and grain particles at the grass discharge port 22 fall into a channel below the bottom screen 31 through screen holes of the scale multistage vibrating tail screen 41 to be collected.

As shown in fig. 3, the first threshing teeth 103 face the outer end of the threshing cylinder, and when in use, the threshing teeth 105 of the first threshing teeth 103 are used for threshing the crops, and simultaneously, the cutter teeth 107 of the threshing teeth 105 are used for cutting the straws.

When the threshing bow teeth 106 of the second threshing cutter tooth combination 104 are needed to be used for threshing crops, the connecting bolt 13 is firstly detached, then the cutter tooth bar 101 is rotated, the second threshing cutter tooth combination 104 on the cutter tooth bar 101 faces the outer end of the threshing cylinder, then the connecting bolt 13 is installed, the connecting bolt 13 penetrates through the first bolt hole 108 corresponding to the second threshing cutter tooth combination 104, and therefore the cutter tooth bar 101 is fixedly installed between the first spoke disc 11 and the second spoke disc 12. After the threshing knife is replaced, the threshing arch teeth 106 of the second threshing knife tooth combination 104 can be used for threshing the crops.

The embodiments of the present invention have been described in detail, but the present invention is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and the equivalents or substitutions are included in the scope of the present invention defined by the claims.

Claims (10)

1. The utility model provides a thresher of coaxial many cylinders threshing teeth that can overturn which characterized in that: the threshing device comprises an upper shell (2) and a lower shell (3), wherein the upper shell (2) and the lower shell (3) are covered to form a threshing cavity, a material inlet (21) and a straw discharge port (22) which are communicated with the outside are formed in the threshing cavity, a bottom screen (31) is installed at the bottom end of the threshing cavity, and a threshing roller (1) is installed in the threshing cavity;

the threshing cylinder (1) comprises a threshing knife toothed bar (10), a first spoke disc (11) and a second spoke disc (12); the threshing knife toothed bars (10) are provided with a plurality of threshing knife toothed bars, and each threshing knife toothed bar (10) comprises a knife toothed bar (101) and different threshing knife tooth combinations used for threshing different crops in the circumferential direction of the knife toothed bar (101); the two ends of the cutter toothed bar (101) are respectively provided with an overturning mounting plate (102), and the threshing cutter toothed bars (10) are detachably mounted between the first spoke disc (11) and the second spoke disc (12) through the overturning mounting plates (102) at the two ends; each threshing cutter tooth combination comprises a plurality of threshing teeth, and the threshing teeth are arranged on the cutter tooth rod (101) along the length direction of the cutter tooth rod (101).

2. Threshing apparatus according to claim 1, characterized in that: the threshing cylinder (1) further comprises a grass discharging mechanism positioned at the outer end of the second spoke disc (12), and the grass discharging mechanism, the first spoke disc (11) and the second spoke disc (12) are in transmission connection through a transmission main shaft (14).

3. Threshing apparatus according to claim 2, characterized in that: the grass discharging mechanism comprises a third spoke plate (16) and a plurality of grass discharging toothed bars (17);

the third spoke disk (16) is positioned at the outer end of the second spoke disk (12) and is coaxial with the second spoke disk (12), transmission spindle holes (113) are formed in the centers of the first spoke disk (11), the second spoke disk (12) and the third spoke disk (16), and the transmission spindle (14) sequentially penetrates through the transmission spindle holes (113) of the first spoke disk (11), the second spoke disk (12) and the third spoke disk (16) and then is connected with a transmission wheel (15);

the grass discharging toothed bars (17) are installed between the second spoke disc (12) and the third spoke disc (16) along the circumferential direction of the spoke disc, a plurality of grass discharging teeth (171) are arranged on the grass discharging toothed bars (17) along the length direction of the grass discharging toothed bars, and the grass discharging teeth (171) face the outer end of the circumferential direction of the spoke disc.

4. Threshing apparatus according to claim 2, characterized in that: threshing device still includes vibration sieve mechanism (4), vibration sieve mechanism (4) include multistage vibration tail sieve of fish scale (41) and eccentric vibrating rod (42), install multistage vibration tail sieve of fish scale (41) arrange grass mouthful (22) department, the passageway of multistage vibration tail sieve of fish scale (41) sieve mesh lower extreme communicates to end sieve (31) below, eccentric vibrating rod (42) one end is connected transmission main shaft (14), the other end is connected multistage vibration tail sieve of fish scale (41).

5. Threshing apparatus according to claim 1, characterized in that: threshing cutter tooth combination includes first threshing cutter tooth combination (103) and second threshing cutter tooth combination (104) that carry on the back mutually on cutter tooth pole (101) circumferencial direction, first threshing cutter tooth combination (103) is including a plurality of threshing cutter teeth (105) along cutter tooth pole (101) length direction, second threshing cutter tooth combination (104) is including a plurality of threshing arch teeth (106) along cutter tooth pole (101) length direction.

6. Threshing apparatus according to claim 5, characterized in that: threshing cutter tooth (105) for with cutter tooth pole (101) length direction vertically quadrangle platelike structure, quadrangle platelike structure's inner end with cutter tooth pole (101) lateral wall is connected, and outer end is outwards stretched out, and the side inclines to the outer end and makes platelike structure outwards shrink gradually about, and has seted up on the side of controlling in the side a plurality of moving cutter teeth (107).

7. Threshing apparatus according to claim 5, characterized in that: threshing arch tooth (106) for with sword ratch (101) length direction vertically bending rod structure, bending rod structure is from inside to outside shrink, one end with sword ratch (101) lateral wall is connected, outwards stretches out after the connection and buckle inwards with sword ratch (101) lateral wall is connected.

8. Threshing apparatus according to claim 6, characterized in that: a plurality of feeding guide plates (23) which convey materials spirally to the grass discharging opening (22) are arranged in the upper shell (2); the lower shell (3) is provided with a plurality of fixed knives (32) corresponding to the threshing knives on the threshing cylinder (1), the fixed knives (32) are provided with fixed knife teeth, and the fixed knives (32) and the threshing knives on the threshing cylinder (1) are arranged in a staggered mode.

9. Threshing apparatus according to claim 1, characterized in that: the overturning mounting plate (102) is vertical to the length direction of the cutter tooth rod (101), the overturning mounting plate (102) extends towards the outer end of the side wall of the cutter tooth rod (101), and a plurality of first bolt holes (108) are formed in the extending part;

the threshing device is characterized in that the threshing knife toothed bars (10) are arranged between the first spoke disc (11) and the second spoke disc (12) along the circumferential direction of the spoke discs, a plurality of second bolt holes (111) are formed in the first spoke disc (11) and the second spoke disc (12) along the circumferential direction of the first spoke disc and the second spoke disc, and the connecting bolts (13) penetrate through the first bolt holes (108) and the second bolt holes (111) and then are connected with nuts.

10. Threshing apparatus according to claim 1, characterized in that: limiting blocks (109) are arranged at the left end and the right end of the cutter tooth rod (101), and the limiting blocks (109) are located on the outer side of the turnover mounting plate (102); a plurality of limiting holes (112) are formed in the first spoke disc (11) and the second spoke disc (12) along the circumferential direction of the first spoke disc and the second spoke disc, and the limiting blocks (109) are inserted into the limiting holes (112).

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