Stripping workbench for stripping type grain combine harvester

Abstract

The utility model provides a stripping workbench for a stripping type grain combine harvester, which adopts a closed combined stripping method and is mounted at the front end of a crawler-type small and medium-sized combine harvester, and the crawler-type combine harvester is connected with a stripping mechanism through an inclined conveying groove. The threshed grains are guided and conveyed into the harvester through the inclined conveying groove, and the harvester only needs to undertake grain cleaning and grain storage work. The stripping workbench is composed of a rack, a grain guiding assembly, a stripping roller, a feeding inlet grain divider, a supporting and falling grain divider, a concave grid and a spiral pushing and conveying device, crops are fed into the stripping chamber, under the combing and brushing impact driving of the stripping roller, most grains of the grains are stripped in a side stripping mode at the upper portion of an inlet, and then the grains are separated along a flow guiding strip of the feeding inlet grain divider. The grains enter the lower portion of the stripping chamber and continue to be stripped in a downward stripping mode until stripping separation work is finished, so that the grains are prevented from being thrown outwards and lost, the loss rate of the stripping type harvester is reduced, and the effect is remarkable.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of grain harvester, concretely to a combing and threshing workbench for combing and threshing type grain combine harvester. BACKGROUND

[0002] Grain harvesting operation is the last link in the process of grain growth, and the level of harvesting has an important influence on crop output. The combing and threshing harvesting method is a harvesting process of directly combing and threshing grains from ear heads in the field after the crops are in a mature state. The existing combing and threshing type harvester has the following defects:

[0003] Most of the existing combing and threshing type harvesters adopt a "no support upward throwing type" combing and threshing method, and the combing and threshing work is carried out in a semi-open space in the front part of the device, which is commonly known as "external threshing type". It is easy to cause grain loss and cannot be recovered. In particular, when the ear width of the harvested crops is greatly different, the phenomenon of forward throwing of the grains of low crops is serious, and the high crops are not convenient to enter the threshing chamber. Moreover, the feeding inlet is often blocked, and no model can solve the above problems.

[0004] The post-threshing crop stem processing method is unsatisfactory. Currently, there are three processing methods: 1. standing in place as a whole without any processing; 2. borrowing the mode of the existing stem crushing device of the full feeding harvester; and 3. cutting down the whole plant and laterally conveying and laying in a row. The above stem processing devices are large in weight and body, and can only be arranged behind the cutting table, which increases the forward extension of the cutting table and affects the longitudinal stability of the whole machine. At present, there are strong regional and habitual requirements for straw processing in China, and most of them require straw to be chopped and returned to the field.

[0005] There is no feasible measure and supporting device for the harvesting of lodged crops. Lodging of crops often occurs due to various reasons in the late growth period of crops, and the existing harvesters are difficult to harvest the lodged crops.

[0006] The present disclosure discloses a harvesting table for a combing and threshing type grain harvester, and the patent authorization announcement number is CN203814203U. However, the harvesting effect of the lodged crops is poor, and the grain threshing and straw cutting effects are poor. Therefore, the present application file is further improved. UTILITY MODEL CONTENTS

[0007] The technical problem solved by the utility model lies in providing a combing and threshing workbench for a combing and threshing type grain combine harvester to solve the problems in the above background technology.

[0008] The utility model discloses a technical problem solved adopts following technical scheme to realize: the combing type grain combine harvester is with the combing work platform of combing type grain combine harvester, installs in the front end of track type combine, including frame, the combing mechanism of installing on the frame, the prong mechanism of setting in the front end of frame, the prong mechanism is through the adjustable inclination of first oil jar and sets up in the front end of frame, the combing mechanism includes the combing chamber of installing on the frame, sets up in the combing chamber one side and is used to import the grain's support down and feeds the entry divider, install the combing cylinder in the combing chamber, the outer circle one side of combing cylinder still is equipped with the concave screen of increasing the combing effect, and the spiral propelling device of collecting grain is equipped with in the lower extreme of concave screen, and the spiral propelling device is connected to the inclined conveying groove, and through the scraper elevator in the inclined conveying groove, the grain that takes out is guided into the combine, and the lower extreme of frame still is equipped with the guide component and cutting component to the grain straw and carries out the processing, to guide out and carry out cutting processing after the combing of straw.

[0009] As a further scheme of the utility model:

[0010] The prong mechanism includes prong frame and prong one shaft and prong two shaft that are rotatably installed on the prong frame, the two sides of prong one shaft are equipped with drive sprocket, the middle of prong two shaft is equipped with guide barrel, the two sides of prong one shaft are equipped with follow-up sprocket, the drive sprocket and follow-up sprocket are connected through double-eared conveying chain transmission, the double-eared conveying chain outside distribution of the two sides of prong frame is equipped with prong rod, and the prong rod is equipped with prong tooth, to use prong tooth to move grain.

[0011] As a further scheme of the utility model:

[0012] The combing cylinder includes cylinder shaft and the cylinder frame of setting outside cylinder shaft, the stud and the plate tooth of setting in the outer circle of cylinder frame, the stud and the plate tooth annular distribution are installed in the outer circle of cylinder frame and are along the cross distribution of cylinder shaft and set up, the two sides of cylinder shaft are respectively equipped with cylinder sprocket, and the sprocket of one side of cylinder shaft is connected through chain and the sprocket of the outer end of prong one shaft transmission, and the sprocket of the other side is connected through chain and transmission mechanism.

[0013] As a further scheme of the utility model:

[0014] The feed inlet divider distribution is arranged at the feed inlet side of the threshing chamber to guide the grains into the threshing chamber, and the feed inlet divider is an arc structure arranged along the threshing chamber, and the feed inlet divider comprises a divider flow guide strip, a grain collecting groove and a flow guide arc plate arranged in cooperation.

[0015] As a further scheme of the utility model:

[0016] The falling crop divider is arranged at the front end of the frame, and the falling crop divider comprises a connecting plate connected with the frame and a divider rod arranged obliquely at the front end of the connecting plate, the front end of the divider rod is provided with a divider head, and the two sides of the divider rod are provided with guide covers which are unfolded outward from the upper end.

[0017] As a further scheme of the utility model:

[0018] The concave sieve is made into a semicircle in three sections by a square hole screen, and the concave sieve is arranged on the outer periphery of the threshing cylinder.

[0019] As a further scheme of the utility model:

[0020] The spiral propelling device comprises a spiral shaft and spiral blades arranged on the two sides of the spiral shaft, so as to collect the grains by the spiral blades and guide the grains into the harvester by the scraper elevator in the inclined conveying groove.

[0021] As a further scheme of the utility model:

[0022] The guide component comprises a guide shaft and a tine rack arranged on the guide shaft to drive the straw to be extracted into the combing chamber, and the cutting component is arranged on the lower side of the guide component and comprises a cutting shaft and cutting blades arranged on the cutting shaft, the cutting blades are divided into moving blades and fixed blades and reciprocate with each other to crush the extracted straw, specifically, after the harvesting work starts, the cutting blades on the cutting shaft rotate with the cutting shaft, different parts of the crop stalks will be contacted with the cutting blades from top to bottom in sequence and cut into broken stalks of a certain length, and are evenly scattered in the field, thereby completing the chopping and returning to the field work of the crop stalks, if the user requires to keep the complete stalks and has a stalk bundling machine, a stalk cutting device composed of a single group of compound cutter can be used, so that the stalks are cut down and longitudinally laid in a complete strip to meet the stalk recovery requirement, the cutting component has high cutting efficiency, compact structure, novelty, small occupied space and low stubble, and can be installed below the combing chamber.

[0023] As a further scheme of the utility model:

[0024] The transmission mechanism comprises a transmission shaft and sprockets arranged on the transmission shaft, the transmission shaft is in transmission connection with the drum shaft, the spiral shaft and the cutting shaft through chains respectively, the cutting shaft is in transmission connection with the guide shaft through a chain, and the transmission shaft is connected with a power device.

[0025] Compared with the prior art, the utility model has the beneficial effects that:

[0026] The device adopts a closed compound combing method, feeds the crops into the combing chamber, and after most of the grains are combed and separated by the side combing under the driving of the combing drum (spiked tooth + plate tooth), the grains enter the lower part of the combing chamber along the guide strip of the feeding inlet divider and are continuously combed and separated, until the combing and separating work is completed, so that the grains are prevented from being scattered and lost outward, and the grain recovery effect is improved.

[0027] A rotary guide mechanism with adjustable inclination is arranged in front of the combing chamber, the guide mechanism can forcibly send the ear parts of the straight standing plants into the combing mechanism in an inclined state, creates favorable conditions for reliable and sufficient threshing work, and can be used for harvesting the lodged crops in cooperation with the supporting and falling divider.

[0028] The outer periphery of the combing drum is further provided with a concave screen for increasing the combing effect, the concave screen is made into a semicircle in three sections by square hole screen meshes. The concave screen has the functions of grain separation, broken ear rethreshing and preventing the grains from being wrapped when the stalks are extracted. The threshed products of the crops can be treated as required in the cutting platform without adding new rethreshing devices in the original harvester.

[0029] The front end of the frame is provided with a plurality of feeding entrance dividers which are distributed at the feeding entrance side of the carding and stripping chamber to guide the grains into the carding and stripping chamber. The crops enter the carding and stripping chamber through the gap between the two feeding entrance dividers, and then move along the guide bars of the dividers in a curve from top to bottom under the driving of the tines and the flat tines in the carding and stripping chamber, and are supported by the inclined surfaces of the guide bars of the dividers to complete the side stripping and downward stripping carding and stripping operations in sequence. Most of the stripped materials fall into different areas of the concave screen through the grain collecting groove and the guide arc plate, and a small part of the stripped materials which are not collected directly fly to the concave screen along the vertical direction of the carding and stripping flat tines.

[0030] The cutting assembly is arranged below the guide assembly, and the cutting assembly comprises a cutting shaft and cutting blades which are distributed on the cutting shaft. The cutting blades of the cutting shaft rotate with the cutting shaft. Different parts of the crop stems will be contacted with the cutting blades in turn from top to bottom and cut into broken stems of a certain length, and then uniformly scattered in the field, so that the cutting and crushing of the crop stems for returning to the field are completed.

[0031] A plurality of supporting and falling dividers are further arranged below the front of the carding and stripping chamber. During the forward movement of the equipment, the supporting and falling dividers arranged at intervals are used to support the fallen crops. The crop supporting mechanism can adjust the angle through the first oil cylinder, and then cooperate with the supporting and falling dividers to limit the supported crops and push them into the carding and stripping mechanism for carding and stripping, so that the device can orderly harvest the fallen crops. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a schematic diagram of the installation structure of the carding and stripping workbench of the utility model;

[0033] Figure 2 It is a schematic diagram of the side view structure of the carding and stripping workbench of the utility model;

[0034] Figure 3 It is a schematic diagram of the top view structure of the carding and stripping workbench of the utility model;

[0035] Figure 4 It is a schematic diagram of the structure of the crop guiding mechanism of the utility model;

[0036] Figure 5 It is a schematic diagram of the structure of the carding and stripping cylinder of the utility model;

[0037] Figure 6 It is a schematic diagram of the structure of the feeding entrance divider of the utility model;

[0038] Figure 7 It is a schematic diagram of the structure of the supporting and falling divider of the utility model;

[0039] Figure 8 It is a schematic diagram of the structure of the concave screen of the utility model;

[0040] Figure 9 It is a guide component structure schematic view of the utility model;

[0041] Figure 10 It is a cutting component structure schematic view of the utility model;

[0042] In the drawing, mark: 1, harvester; 2, guide mechanism; 3, combing chamber; 4, supporting and falling grain divider; 5, feeding inlet grain divider; 6, combing cylinder; 7, spiral propeller; 8, inclined conveying groove; 9, guide component; 10, cutting component; 11, frame; 12, transmission mechanism; 21, first oil cylinder; 22, guide frame; 23, guide one shaft; 24, guide two shafts; 25, drive sprocket; 26, follow-up sprocket; 27, double-ear conveying chain; 28, guide rod; 31, concave screen; 41, connecting plate; 42, grain divider rod; 43, grain divider head; 44, guide cover; 51, grain divider guide strip; 52, grain collecting groove; 53, guide arc plate; 61, cylinder shaft; 62, cylinder frame; 63, spike tooth; 64, plate tooth; 71, spiral shaft; 72, spiral blade; 91, guide shaft; 92, guide rack; 101, cutting shaft; 102, cutting blade. DETAILED DESCRIPTION

[0043] In order to make the utility model realize technical means, creation features, achieve purposes and functions easy to understand, the following further elaborates the utility model by combining with specific drawing.

[0044] As shown in Figures 1-10 ,

[0045] The embodiment provides a combing workbench for a combing type grain combine harvester, which is installed at the front end of a tracked combine harvester 1 and comprises a frame 11, a combing mechanism installed on the frame 11, and a guide mechanism 2 arranged at the front end of the frame 11. The guide mechanism 2 is arranged at the front end of the frame 11 in an adjustable inclination manner through a first oil cylinder 21. The combing mechanism comprises a combing chamber 3 installed on the frame 11, a supporting and falling grain divider 4 and a feeding inlet grain divider 5 arranged at one side of the combing chamber 3 and used for guiding grain. The combing chamber 3 is internally provided with a combing cylinder 6. The combing cylinder 6 is further provided with a concave screen 31 increasing the combing effect at one side of the outer periphery of the combing cylinder 6. The concave screen 31 is provided with a spiral propeller 7 collecting grain at the lower end of the concave screen 31. The spiral propeller 7 is externally connected with an inclined conveying groove 8, and the grain is guided into the harvester through a scraper elevator in the inclined conveying groove 8. The lower end of the frame 11 is further provided with a guide component 9 and a cutting component 10 for processing grain straw, so as to guide out the straw after combing and perform cutting processing.

[0046] In the embodiment, the raking mechanism 2 comprises a raking frame 22, a raking first shaft 23 and a raking second shaft 24 rotatably installed on the raking frame 22, a guide barrel is arranged in the middle of the raking first shaft 23, drive sprockets 25 are arranged on both sides of the raking first shaft 23, and follow-up sprockets 26 are arranged on both sides of the raking second shaft 24. The drive sprockets 25 and the follow-up sprockets 26 are drivingly connected by double-ear conveying chains 27. The double-ear conveying chains 27 are arranged outside the raking frame 22, and raking rods 28 are arranged outside the double-ear conveying chains 27. Raking teeth are arranged on the raking rods 28 to rake the crops. Specifically, the raking mechanism 2 can force the ear heads of the straight standing plants into the threshing mechanism in an inclined state, so as to create favorable conditions for reliable and sufficient threshing, and can be used for harvesting the lodged crops in cooperation with the supporting and falling grain separator 4.

[0047] In the embodiment, the threshing cylinder 6 comprises a cylinder shaft 61, a cylinder frame 62 arranged outside the cylinder shaft 61, peg teeth 63 and plate teeth 64 arranged outside the cylinder frame 62. The peg teeth 63 and the plate teeth 64 are arranged in a ring shape outside the cylinder frame 62 and are arranged in a cross shape along the cylinder shaft 61. Cylinder sprockets are arranged on both sides of the cylinder shaft 61. The cylinder sprocket on one side of the cylinder shaft 61 is drivingly connected to the sprocket on the outer end of the raking first shaft 23 through a chain, and the cylinder sprocket on the other side is connected to the transmission mechanism 12 through a chain.

[0048] In the embodiment, the feeding inlet grain separator 5 is arranged on the side of the feeding inlet of the threshing chamber 3 to guide the crops into the threshing chamber 3. The feeding inlet grain separator 5 is arranged in an arc shape along the threshing chamber 3. The feeding inlet grain separator 5 comprises a grain separator guide strip 51, a grain collecting groove 52 and a guide arc plate 53 arranged in cooperation. Specifically, after the crops enter the threshing chamber 3 through the gap (250-300 mm) between the two feeding inlet grain separators 5, the crops are driven by the peg teeth 63 and the plate teeth 64 in the threshing chamber 3 to move along the grain separator guide strip 51 in a curve from top to bottom. The crops are supported by the inclined surface of the grain separator guide strip 51 to complete the side threshing and the downward threshing in sequence. Most of the threshed crops are collected by the grain collecting groove 52 and the guide arc plate 53 and then fall into different areas of the concave screen 31. A small part of the threshed crops directly fly to the concave screen along the vertical direction of the threshing plate teeth 64 of the threshing chamber 3.

[0049] In the embodiment, the supporting and falling grain separator 4 is arranged at the front end of the frame 11. The supporting and falling grain separator 4 comprises a connecting plate 41 connected to the frame 11 and a grain separator rod 42 arranged in an inclined manner at the front end of the connecting plate 41. A grain separator head 43 is arranged at the front end of the grain separator rod 42. Guide hoods 44 are arranged on both sides of the grain separator rod 42 and extend outward from the upper end. During the movement of the equipment, the supporting and falling grain separator 4 arranged at intervals is used to support the lodged crops. The raking mechanism 2 can adjust the angle through the first oil cylinder 21 and then limit the supported crops in cooperation with the supporting and falling grain separator 4 and push the crops into the threshing mechanism for threshing.

[0050] In this embodiment, the concave screen 31 is made of square hole screen net in three sections and is semicircular. The concave screen 31 is arranged on the outer periphery of the combing and threshing drum. Different areas of the concave screen 31 have the functions of grain separation, re-threshing of broken heads and prevention of grain wrapping when the stems are pulled out. The threshed material of the crops is subjected to the required treatment in the header and does not need to be equipped with new re-threshing devices in the original harvester.

[0051] In this embodiment, the auger 7 includes an auger shaft 71 and auger blades 72 arranged on both sides of the auger shaft 71 to gather the grain through the auger blades 72 and guide the grain into the harvester through the scraper elevator in the inclined conveying chute 8. The auger shaft is provided with a sprocket and is connected with the transmission mechanism 12 through a chain.

[0052] In this embodiment, the guide assembly 9 includes a guide shaft 91 and guide tines 92 arranged on the guide shaft 91 to drive the straw pulling and combing chamber 3. The cutting assembly 10 is arranged below the guide assembly 9 and includes a cutting shaft 101 and cutting blades 102 arranged on the cutting shaft 101. The cutting blades 102 are divided into moving blades and fixed blades and reciprocate with each other to crush the pulled straw. Specifically, after the harvesting work starts, the cutting blades 102 on the cutting shaft 101 rotate with the cutting shaft 101. Different parts of the crop stems will be contacted with the cutting blades 102 from top to bottom and cut into broken stems of a certain length, which are evenly scattered on the field, thereby completing the crushing and returning work of the crop stems. If the user requires to retain the complete stems and has a stem baling machine, a stem cutting device composed of a single group of compound cutters can be used to make the stems be cut down and longitudinally laid in strips to meet the stem recovery requirements. The cutting assembly 10 has high cutting efficiency, compact structure, novelty, small space occupation and low stubble, and can be installed below the combing and threshing chamber 3.

[0053] In this embodiment, the transmission mechanism 12 includes a transmission shaft and sprockets arranged on the transmission shaft. The transmission shaft is connected with the drum shaft 61, the auger shaft and the cutting shaft through chains. The cutting shaft is connected with the guide shaft through a chain. The transmission shaft is connected with a power device.

[0054] Specifically, the closed composite threshing method has the following working process: after the harvesting work starts, the grains are fed into the upper part of the multiple feeding entrances of the threshing chamber 3 by the harrowing bars 28 of the harrowing mechanism 2 at the front part of the harvesting table at an angle of 45-60 degrees. With the continuous forward movement of the machine, the grains gradually enter the relatively closed threshing chamber 3. Under the impact of the threshing cylinder 6 (spiked tooth 63 + plate tooth 64) combing and brushing, the grains are first threshed by the side threshing method at the upper part of the entrance, and then enter the lower part of the threshing chamber 3 along the guide bars 51 of the feeding entrance divider 5 to continue the under-threshing threshing until the threshing and separating work is completed. The threshed materials separated from the stems are collected by the horizontally arranged auger 7 after passing through the concave screen 31. Finally, the threshed materials pass through the inclined conveying groove 8 into the harvester for cleaning.

[0055] The upper part of the threshed crop straw is pulled out of the machine by the harrowing rack with a vibrating function located below the threshing chamber 3, and is cut and crushed by the cutting assembly 10. The above process constitutes the whole process of crop feeding, threshing, grain separation and collection, and stem extraction. By using the new type of threshing method, the ear part of the crop is threshed by two methods in the relatively closed threshing chamber to complete the threshing work.

[0056] The device not only has reasonable and novel structure design and complete functions, but also through the multi-wheel components and sample machine trial production and test, it is shown that the main performance can meet the requirements of national and industry standards, while also has the advantages of reducing the overall machine quality by 10%, reducing energy consumption by more than 40%, increasing the production rate by 100%, and strong wet and wet separation capacity, etc. It can be used for harvesting rice and wheat and other crops (mainly rice, and also used for wheat) with natural growth height of 650-1000mm.

[0057] The basic principle and main features of the present application and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents. It should be noted that in this document, if there are relationship terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without further limitation, the element defined by the statement "including a" does not exclude the presence of additional identical elements in the process, method, article or device including the element.

Claims

1. A threshing table for a threshing combine harvester of the type mounted at the front end of the harvester (1), characterized in that: The utility model provides a combine harvester, including frame (11), the carding mechanism of installation frame (11), set up in the front end of frame (11) and the sweep mechanism (2), the sweep mechanism (2) is adjustable angle of inclination setting in the front end of frame (11) by first oil cylinder (21), the carding mechanism includes the carding chamber (3) of installation frame (11), set up in the carding chamber (3) one side for the introduction grain and the feed inlet grain divider (5) of supporting down grain divider (4), the carding chamber (3) is installed in the carding cylinder (6), and the outer circle one side of carding cylinder (6) is equipped with the concave plate sieve (31) of increasing carding effect, and the lower end of concave plate sieve (31) is equipped with the spiral elevator (7) of collecting grain, and spiral elevator (7) is connected with the inclined conveying groove (8), and through the scraper elevator in inclined conveying groove (8) with grain is introduced into harvester, the lower end of frame (11) is equipped with the guide component (9) and cutting assembly (10) of carrying out the processing to grain straw to the carded straw of guide out and cutting processing.

2. A threshing table for a combined grain harvester according to claim 1, characterized in that: The sweep mechanism (2) includes sweep frame (22) and the sweep one shaft (23) and sweep two shaft (24) of rotation installation in sweep frame (22), the sweep one shaft (23) middle is equipped with guide barrel, and the sweep one shaft (23) both sides are equipped with drive sprocket (25), and the sweep two shaft (24) both sides are equipped with follow-up sprocket (26), the drive sprocket (25) and follow-up sprocket (26) are driven connection through double-eared conveying chain (27), and the double-eared conveying chain (27) outside distribution installation of sweep frame (22) both sides is equipped with sweep rod (28), and sweep rod (28) is installed with sweep tooth, to use sweep tooth to sweep grain.

3. A threshing table for a threshing combine harvester according to claim 2, characterized in that: The carding cylinder (6) includes cylinder shaft (61) and the cylinder frame (62) of setting in the cylinder shaft (61) outside, the nail tooth (63) and plate tooth (64) of setting in the outer circle of cylinder frame (62), the nail tooth (63) and plate tooth (64) annular distribution installation are arranged in the outer circle of cylinder frame (62) and along cylinder shaft (61) cross distribution setting, the both sides of cylinder shaft (61) are installed with cylinder sprocket respectively, and the cylinder sprocket of one side of cylinder shaft (61) is driven connection through chain with the sprocket of sweep one shaft (23) outer end, and the cylinder sprocket of the other side is connected with transmission mechanism (12) through chain.

4. A threshing table for a combined grain harvester according to claim 3, characterized in that: The feed inlet grain divider (5) distribution setting is in the feed inlet one side of carding chamber (3), to guide grain into carding chamber (3), and the feed inlet grain divider (5) is arc structure along carding chamber (3) setting, the feed inlet grain divider (5) includes the grain divider guide strip (51) and the grain collection groove (52) and guide arc plate (53) for gathering grain of cooperation setting.

5. A threshing table for a threshing combine harvester according to claim 3, characterized in that: The supporting down grain divider (4) distribution installation is in the front end of frame (11), and the supporting down grain divider (4) includes the connecting plate (41) of being connected with frame (11) and the grain divider rod (42) of being arranged in the front end of connecting plate (41) and being inclined, and the grain divider rod (42) front end is equipped with grain divider head (43), and the grain divider rod (42) both sides are equipped with the guide cover (44) of being unfolded to the outside of upward end.

6. A threshing table for a threshing combine harvester according to claim 4, characterized in that: The concave screen (31) is made of square hole screen net in three sections and is semicircular, and the concave screen (31) is arranged on the outer periphery of the combing roller.

7. A threshing table for a threshing combine harvester according to claim 6, characterized in that: The spiral propeller (7) comprises a spiral shaft (71) and spiral blades (72) arranged on both sides of the spiral shaft (71), so as to gather the grains through the spiral blades (72) and guide the grains into the harvester through the scraper elevator in the inclined conveying groove (8), and the spiral shaft is externally provided with a chain wheel and connected with the transmission mechanism (12) through a chain.

8. A threshing table for a threshing combine harvester according to claim 7, characterized in that: The guide component (9) comprises a guide shaft (91) and a guide tooth bar (92) arranged on the guide shaft (91), so as to drive the straw to be drawn out of the combing chamber (3), and the cutting component (10) is arranged on the lower side of the guide component (9) and comprises a cutting shaft (101) and cutting blades (102) arranged on the cutting shaft (101) in a distributed manner, the cutting blades (102) are divided into moving knives and fixed knives and reciprocate with each other, so as to cut the drawn-out straw.

9. A threshing table for a threshing combine harvester according to claim 8, characterized in that: The transmission mechanism (12) comprises a transmission shaft and chain wheels arranged on the transmission shaft in a distributed manner, the transmission shaft is respectively connected with the roller shaft (61), the spiral shaft and the cutting shaft through a chain, the cutting shaft is connected with the guide shaft through a chain, and the transmission shaft is externally connected with a power device.

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