CN215601954U - Grain combine harvester - Google Patents

Abstract

The utility model relates to a grain combine harvester which comprises a header, a traveling system, a transmission system, a threshing and cleaning system and a grain tank, wherein a threshing and cleaning system fixing frame is arranged on the traveling system, the header is erected in front of the traveling system and is communicated with the threshing and cleaning system, the grain tank fixing frame is arranged on the traveling system, is positioned in front of the threshing and cleaning system and is communicated with the threshing and cleaning system, the transmission system comprises an engine, the engine fixing frame is arranged at the rear end of the traveling system, and the engine is in transmission connection with the header and the threshing and cleaning system. The utility model aims at the problems that the overall structural layout of the existing grain combine harvester is not reasonable enough, the crawler-type harvesting machine cannot break through the high efficiency and large feeding amount, the overall layout is newly designed, the bottleneck of the harvesting efficiency of the crawler-type harvesting machine is broken through, the short plate of the crawler-type harvesting machine with the gravity center offset is solved, and the large-scale development of the crawler-type harvesting machine becomes possible.

Description

Grain combine harvester

Technical Field

The utility model relates to the technical field of grain harvesting, in particular to a grain combine harvester.

Background

Under the influence of national policies such as 'land circulation integration' and 'rural labor force transfer to city', the land is intensively managed in a mode of farms and cooperative society and the labor cost is increased, so that the market structure of the crawler-type harvester is greatly influenced, and the market proportion of a large crawler-type harvester or an ultra-large-type harvester is increased.

The existing market crawler machine mainly takes a medium and small product with the feeding amount of 5-6 kilograms, the traditional single-side longitudinal axial flow product is limited by the structure, the grain box and the threshing machine body are distributed left and right, and the change of the gravity center position is large. The center of gravity is left when the grain tank is empty and right when the grain tank is full. During working, the load of a drive axle and a gearbox is greatly influenced by the gravity center, and the reliability is influenced; secondly, the trafficability of the whole crawler is obviously changed by the gravity center, so that the reliability and the service life of the crawler are influenced.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a grain combine harvester, which effectively overcomes the defects of the prior art.

The technical scheme for solving the technical problems is as follows:

the utility model provides a grain combine, includes header, traveling system, transmission system, thresh cleaning system and grain tank, thresh cleaning system mount and locate traveling system is last, the header erects traveling system's the place ahead, and with thresh cleaning system intercommunication, the grain tank mount is established traveling system is last, and is located thresh cleaning system the place ahead, and with threshing cleaning system intercommunication, transmission system includes the engine, and this engine mount is established traveling system's rear end, the engine with the header with thresh cleaning system transmission is connected.

On the basis of the technical scheme, the utility model can be further improved as follows.

Further, the traveling system comprises a chassis frame, a plurality of thrust wheels distributed front and back are arranged at the lower part of the chassis frame, a crawler belt is sleeved outside the plurality of thrust wheels, and the traveling system also comprises a crawler belt tensioning device which comprises a supporting cylinder, a connecting cylinder and a tensioning wheel, the tensioning wheel is arranged at one end of the connecting cylinder, the other end of the connecting cylinder extends into the supporting cylinder and is in sliding fit with the supporting cylinder, the tensioning wheel further comprises an oil cylinder supporting seat, a tensioning oil cylinder and a tensioning locking structure, two oil cylinder supporting seats are arranged and are respectively and fixedly connected with the supporting cylinder and the connecting cylinder, two ends of the tensioning oil cylinder are respectively detachably connected with the two oil cylinder supporting seats, the tensioning locking structure is arranged on the supporting cylinder, the threshing and cleaning system is used for locking the relative positions of the supporting cylinder and the connecting cylinder, and the threshing and cleaning system and the grain box are all erected on the chassis frame.

Further, threshing cleaning system includes that the mount is located threshing machine body and setting on the traveling system are in cylinder, notch board on the threshing machine body, clean fan, sieve case, seed grain screw feeder and miscellaneous surplus screw feeder, the header with cylinder front side intercommunication, the outside cover of cylinder has the notch board, and its rear side is equipped with row grass mouthful department is equipped with the chopper, the sieve case sets up the below of cylinder, its upper end is equipped with cleaning sieve, clean the fan set up in the bottom of sieve case, sieve bottom of the case portion front side intercommunication the seed grain screw feeder, seed grain screw feeder intercommunication the grain tank, sieve bottom of the case portion rear side intercommunication miscellaneous surplus screw feeder.

Further, still include miscellaneous surplus circulation rethreshing mechanism, miscellaneous surplus circulation rethreshing mechanism includes grain lifting mechanism and rethreshing mechanism, the grain lifting mechanism assemble in one side of threshing machine body is outside, its lower extreme feed inlet with the discharge end of miscellaneous surplus screw feeder is connected and is communicate, rethread mechanism assemble in one side upper portion of threshing machine body, its feed inlet with the upper end discharge gate of grain lifting mechanism is connected and is communicated, one side that rethread mechanism is close to the threshing machine body is equipped with the seed grain export, and this seed grain export passes the opening of one side adaptation of threshing machine body, and extends one side top of sorting screen.

Further, clean the fan and include preceding fan and back fan, preceding fan set up in sieve case front side, and be located the front side below of cleaning sieve, its air-out direction upwards link up from slope backward the preceding middle part region of cleaning sieve, back fan set up in sieve case rear portion, and be located the back end below of cleaning sieve, its air-out direction upwards link up from slope backward forward the rear portion region of cleaning sieve.

The air outlet direction of the auxiliary fan is obliquely upwards communicated with the front part of the cleaning screen from front to back.

The wind guide plate comprises a wind guide bottom plate horizontally arranged front and back, a protruding triangular pyramid-shaped wind guide part is arranged at the upper part of the middle area of the wind guide bottom plate, the front end of the wind guide part is a cone point, the rear end of the wind guide part is a cone bottom end, the left side and the right side of the wind guide part are respectively provided with two bilaterally symmetrical conical surfaces, and the conical surfaces at the two sides form wind guide surfaces respectively.

Furthermore, the front fan comprises a casing, a rotating shaft, a plurality of groups of cross flow blades and a plurality of cross flow blades, wherein an air inlet is formed in any one end or two ends of the left side and the right side of the casing, air outlets transversely extending towards the two ends of the casing are formed in the front side of the casing, a blocking plate is detachably mounted at the air inlet, the rotating shaft is rotatably assembled in the casing along the left and right direction, one end of the rotating shaft extends out of the corresponding end of the casing, a radial air inlet is formed in the upper portion of the casing, a cover plate is detachably arranged at the position of the radial air inlet, the plurality of groups of cross flow blades are axially assembled on the rotating shaft at intervals, the plurality of cross flow blades are detachably mounted on the peripheries of the plurality of groups of cross flow blades respectively and are circumferentially distributed at intervals along the rotating shaft, and each cross flow blade extends along the axial direction of the rotating shaft.

Further, the cleaning sieve left and right sides is detachable respectively and is equipped with rather than the vertically axle that hangs, hang the axle and pass the pilot hole of thresher body both sides adaptation, just the one end that hangs the axle and pass the pilot hole is connected with respectively and threshes the subassembly in midair of the corresponding side upper portion swing joint of thresher body, apron is installed to assembly hole department detachable, be equipped with the waist round hole that runs through it along the fore-and-aft direction on the apron, hang the axle and pass and correspond the waist round hole, hang epaxial cover and be equipped with the sealed subassembly that shelters from that can follow its axial elastic movement, should seal and shelter from subassembly and correspond the inboard laminating of apron.

Furthermore, the grain tank comprises two side box bodies distributed left and right, any one of the side box bodies can independently rotate in a direction away from or close to the other side box body, the opposite side walls of the two side box bodies are arranged in an open mode, the two side box bodies can rotate to a closed state that the opposite side walls are mutually abutted and communicated, a grain inlet for communicating a grain screw conveyer is formed in the upper portion of one of the side box bodies, and the grain inlet can be overturned and turned relative to one side wall of the side box body where the grain inlet is formed.

Furthermore, the chopper can be arranged on a frame body matched with the rear end of the walking system in a left-right sliding mode, and can be fixed to the frame body through a fastener.

Further, cereal combine has the oil tank, the oil tank includes the main oil tank, the main oil tank sets up arbitrary one side of the left and right sides at traveling system to through the rotatable assembly of upset installation component arbitrary one side upper portion about the traveling system, and can overturn under the exogenic action about the left and right sides to support in the upper portion or the outside of traveling system one side.

The rice transplanter further comprises an auxiliary oil tank, wherein the auxiliary oil tank is arranged on the rear side of the chassis of the rice transplanter, the horizontal height of the bottom wall of the oil tank is lower than that of the bottom wall of the main oil tank, and the bottoms of the auxiliary oil tank and the main oil tank are communicated with each other through an oil pipe.

The utility model has the beneficial effects that: aiming at the problems that the overall structure layout of the existing grain combine harvester is not reasonable enough, the problems that the crawler-type harvesting machine cannot break through high efficiency and large feeding amount are solved, the overall layout is newly designed, the bottleneck of the harvesting efficiency of the crawler-type harvesting machine is broken through, the short plate of the gravity center offset of the crawler-type harvesting machine is solved, and the large-scale development of the crawler-type harvesting machine becomes possible.

Drawings

FIG. 1 is a side view of the structure of a grain combine of the present invention;

FIG. 2 is a schematic view of the structure of the chassis frame of the harvester of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 4 is a front view of the tensioner and connecting cylinder of the present invention;

FIG. 5 is a top view of the tensioner and connecting cylinder of the present invention;

FIG. 6 is a schematic view of the harvester before tensioning the tracks;

FIG. 7 is a schematic view of the tensioned configuration of the harvester tracks of the present invention; the structure shown in the area enclosed by the arcs at the support cylinders in fig. 2, 6, 7 is seen from the inside in perspective.

FIG. 8 is a schematic view of the internal structure of the grain combine of the present invention;

FIG. 9 is a schematic structural view of a threshing and cleaning system of the present invention;

FIG. 10 is a structural cross-sectional view taken along the plane B-B in FIG. 9;

FIG. 11 is a structural cross-sectional view taken along plane C-C of FIG. 9;

FIG. 12 is a layout view of cleaning fans of the present invention;

FIG. 13 is a perspective view of the air deflector of the present invention;

FIG. 14 is a side view of the air deflection assembly of the present invention;

FIG. 15 is a schematic view of the assembly of the air deflection plate of the present invention in a screen box;

FIG. 16 is a schematic view of the internal configuration of a cross-flow and cross-flow compound fan (front fan) of the present invention;

FIG. 17 is a schematic view of the cross-flow and cross-flow combined blower (front blower) of the present invention assembled in a grain threshing machine;

FIG. 18 is a schematic view of the partial configuration of the cross-flow and cross-flow combined fan (front fan) of the present invention assembled in a grain threshing machine;

FIG. 19 is a schematic view of an assembled configuration of the sieve box of the present invention;

FIG. 20 is a schematic view of the sealing and shielding assembly of the present invention in cooperation with the side wall of the thresher body;

FIG. 21 is an enlarged view of the portion D of FIG. 20;

FIG. 22 is a schematic view of the screen box of the present invention in an earlier installation;

FIG. 23 is a schematic view of the front side structure of the split saddle type rotatable grain bin of the present invention;

FIG. 24 is a rear side view of the split saddle type rotatable grain bin of the present invention;

FIG. 25 is a top plan view of the split saddle type rotatable grain bin of the present invention in an open or closed position;

FIG. 26 is a front view of the closed position of the split saddle type rotatable grain bin of the present invention;

FIG. 27 is a schematic view of the connection structure of the pull rod and the body according to the present invention;

FIG. 28 is a schematic structural view of a shredder mounting structure of the present invention;

FIG. 29 is an enlarged, fragmentary, structural view of the shredder mounting structure of the present invention;

FIG. 30 is a schematic view of the side mounted harvester of the present invention;

fig. 31 is a side view of the structure of the oil tank installed on the side of the harvester.

In the drawings, the components represented by the respective reference numerals are listed below:

11. a support cylinder; 12. a connecting cylinder; 13. a tension wheel; 14. tensioning the oil cylinder; 15. an oil cylinder supporting seat; 16. tensioning the screw; 17. a nut sleeve; 18. a positioning sleeve; 19. a U-shaped connecting plate; 110. a guide wheel; 111. a connecting arm; 112. a chassis frame; 113. a crawler belt; 114. a thrust wheel;

21. a thresher body; 22. a drum; 23. a concave plate; 24. a screen box; 25. a seed auger; 26. a tailing auger; 27. a grain elevator; 28. a rethreshing mechanism; 29. cleaning and screening; 200. a material guide plate; 281. a threshing cylinder; 282. a rotating shaft; 283. a helical blade; 284. re-toothstripping; 285. a throwing plate; 2811. a housing; 2812. re-stripping the convex strips;

210. a front fan; 211. a rear fan; 212. an auxiliary fan; 241. installing a groove area; 242. an air volume regulator; 294. a rolling member;

2101. a housing; 2102. a rotating shaft; 2103. a cross flow blade; 2104. a cross-flow vane; 2105. a blocking plate; 2106. a cover plate; 2107. a connecting seat;

4. an air deflector; 41. an air guide bottom plate; 42. a wind guide part; 411. a baffle; 421. a triangular plate;

51. a hanging shaft; 52. a suspension assembly; 53. a cover plate; 54. sealing the shielding assembly; 55. a slideway; 511. installing a flange; 521. a boom; 522. a connecting seat; 531. a lumbar circular hole; 541. an elastic member; 542. pressing a plate; 543. a wear layer;

61. a side box body; 62. a column; 63. a hasp; 65. a pull rod; 66. a grain barrel; 67. fixing the frame; 611. a grain inlet 621, a connecting rod 613, a sealing strip 614 and a grain outlet; 661. a throwing port 662, a conveying mechanism, 615 and a sealing plate; 6111. sealing the cover;

71. a grain unloading auger 72, a grain storage box 73 and a transmission gear;

8. a chopper; 81. mounting a bracket; 82. a fastener; 83. a track; 84. a slider; 811. bracing;

91. a main oil tank; 92. overturning the mounting assembly; 93. a stringer; 94. a secondary fuel tank; 95. an oil pipe; 921. a support bar; 922. a fastener; 923. a locking member; 924. a collar.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.

Example 1

As shown in fig. 1, the grain combine harvester of this embodiment includes header a, traveling system, transmission system, threshing and cleaning system and grain tank c, threshing and cleaning system mount is located traveling system is last, header a erects traveling system's the place ahead, and with threshing and cleaning system intercommunication, grain tank c mount is established traveling system is last, and is located threshing and cleaning system the place ahead, and with threshing and cleaning system intercommunication, transmission system includes engine b, and this engine b mount is established traveling system's rear end, engine b with header a with threshing and cleaning system transmission is connected.

In the embodiment, the whole machine is reasonable in spatial arrangement, compact in structure and light in weight, the gravity center of the existing machine is improved, the load is more reasonable when the machine works, the machine runs more stably, and the service life is longer.

Example 2

As shown in fig. 2 to 7, a reasonable traveling system is designed based on embodiment 1, and specifically includes a chassis frame 112, a plurality of thrust wheels 114 distributed in a front-back direction are disposed at a lower portion of the chassis frame 112, a track 113 is wrapped around the plurality of thrust wheels 114, and a track tensioning device, where the track tensioning device includes a support tube 11, a connection tube 12, and a tensioning wheel 13, the tensioning wheel 13 is mounted at one end of the connection tube 12, the other end of the connection tube 12 extends into the support tube 11 and is in sliding fit, and further includes two cylinder support bases 15, two tensioning cylinders 14, and a tensioning locking structure, where the two cylinder support bases 15 are respectively fixedly connected to the support tube 11 and the connection tube 12, the two ends of the tensioning cylinder 14 are respectively detachably connected to the two cylinder support bases 15, and the tensioning locking structure is mounted on the support tube 11, used for locking the relative position of the supporting cylinder 11 and the connecting cylinder 12, and the threshing and cleaning system and the grain tank c are all erected on the chassis frame.

In the embodiment, the whole machine adopts a crawler-type travelling mechanism, so that the good passing of multiple terrains is facilitated, the tensioning oil cylinder 14 is used for pushing the tensioning wheel 13 in place, and then the tensioning wheel 13 is positioned by using a tensioning locking structure, so that the tensioning of the crawler 113 is realized. The specific mode is to reserve the mounting position of the tensioning cylinder 14 in advance, and install the cylinder support seat 15, when the crawler 113 is replaced, connect the two ends of the tensioning cylinder 14 to the cylinder support seat 15, through the hydraulic system of the whole vehicle, make the tensioning cylinder 14 extend to reach the tensioning purpose of the crawler 113, then the tensioning locking structure is locked, then the tensioning cylinder 14 can be disassembled, when the tensioning is needed, the portable tensioning cylinder 14 prepared in advance is installed through the cylinder support seat 15, or the original cylinders of other places on the harvester are disassembled and installed, connect the hydraulic oil of the hydraulic system of the whole machine to the installed cylinder through the oil circuit interface to execute the tensioning step, the installation is convenient, the tensioning of the crawler 113 can be realized by one-man independent operation, and the cost is lower. The track tensioning device of the present invention is suitable for use in a tracked harvester, particularly a rice harvester, but also in other machines where tensioning of the track 113 is required.

For the tension lock structure, there are two possible solutions:

(1) the tensioning locking structure comprises an outer insertion hole arranged on the support barrel 11, a plurality of inner insertion holes arranged on the connecting barrel 12 at intervals along the axial direction, and a plug pin which can be plugged in the outer insertion hole and any one of the inner insertion holes. The tensioning locking structure can be in a plug-in type, when the tensioning oil cylinder 14 pushes the tensioning wheel 13 to the right position, the outer inserting hole is aligned with one of the inner inserting holes, the plug pin is directly inserted into the outer inserting hole and the inner inserting hole, the relative positions of the supporting barrel 11 and the connecting barrel 12 are locked, the two do not find relative displacement, and the tensioning wheel 13 can be fixed at the position where the supporting barrel 11 and the connecting barrel 12 are located, so that tensioning is completed. However, this solution is easy to break because the bolts are subjected to a great pressure that presses the idler 13 against the upper track 113, and although the operation is the simplest, the structural stability is insufficient.

(2) The tensioning and locking structure comprises a tensioning screw rod 16 and a nut sleeve 17, one end of the supporting cylinder 11 is closed, the other end of the supporting cylinder is open, the other end of the connecting cylinder 12 extends into the supporting cylinder 11 from the other end thereof, one end of the tension screw 16 rotatably penetrates one end of the supporting cylinder 11 and sequentially extends to the inside of the supporting cylinder 11 and the inside of the other end of the connecting cylinder 12, a nut sleeve 17 is screwed on the part of the tensioning screw 16 inside the support cylinder 11, the nut bushing 17 moves in the axial direction of the support cylinder 11 in accordance with the rotation of the tension screw 16, and the other end of the connecting cylinder 12 is abutted, a positioning sleeve 18 which is abutted on the inner wall of one end of the supporting cylinder 11 is fixedly sleeved at the position where the tensioning screw 16 penetrates through one end of the supporting cylinder 11, and the other end of the tensioning screw 16 is positioned outside the supporting cylinder 11. The tensioning locking structure can also be a threaded tensioning screw 16 and a nut sleeve 17, the tensioning screw 16 abuts against one end of the support cylinder 11 through a positioning sleeve 18, the other end of the tensioning screw 16 outside is screwed to rotate, the nut sleeve 17 is driven to move along the axial direction of the support cylinder 11 to abut against the other end of the connecting cylinder 12, and as the track 113 presses one end of the connecting cylinder 12 through the tensioning wheel 13, the position of the connecting cylinder 12 is fixed, and tensioning is completed. Since this solution bears the pressure of the track 113 pressing the tensioning wheel 13, it is the nut sleeve 17, which is in threaded connection with the tensioning screw 16, and the tensioning screw 16 is pressed against one end of the supporting cylinder 11 by the positioning sleeve 18, the forces are all coaxial and not laterally dispersed, as long as the strength of each component is ensured to be sufficient, the tensioning effect can be ensured, and the components are not easily damaged, although the operation is slightly complicated, it is still the preferred solution.

If the tensioning cylinder 14 is not used for pushing the tensioning wheel 13 to the position in advance, the tensioning of the track 113 can be completed by adopting the tensioning locking structure alone, but the tensioning screw 16 is abutted to the positioning sleeve 18 and the nut sleeve 17, so that the friction force is high, the rotation of the tensioning screw 16 is influenced, the tensioning screw 16 can be driven by very high force, the range of each screwing is limited by the space of other structures, the required tensioning time is too long, the operation by a single person is difficult, and the tensioning effect is not good. Therefore, the tensioning oil cylinder 14 is used for pushing the tensioning wheel 13 to the position in advance, and then the tensioning locking structure is used for locking the tensioning wheel 13, which is the best technical scheme.

Based on the above-mentioned threaded tensioning and locking structure, the other end of the tensioning screw 16 is provided with a hexagonal nut structure for facilitating screwing, and a positioning pin is inserted thereon. After the tensioning oil cylinder 14 pushes the tensioning wheel 13 in place in advance, the positioning sleeve 18 and the nut sleeve 17 on the tensioning screw 16 are not abutted in place at this time, the tensioning screw 16 is loose, the tensioning screw 16 can be directly rotated by hand in the early stage, when the positioning sleeve 18 and the nut sleeve 17 are close to the abutment, the tensioning screw 16 can be screwed by taking more effort at the moment, and the tool is needed to complete the tensioning, so that the other end of the tensioning screw 16 can be set into a hexagonal nut structure convenient for screwing, the last few times of screwing can be realized by a wrench, the tensioning of the crawler 113 can be quickly and conveniently realized, and after tensioning, a positioning pin can be inserted into the hexagonal nut structure for positioning.

Based on the above-mentioned screw type tensioning and locking structure, when the tensioning screw 16 rotates, the nut sleeve 17 screwed thereon cannot rotate with the tensioning screw 16, and after being limited to rotate, the nut sleeve can move along the axial direction of the support cylinder 11 to tension the track 113 against the end of the connecting cylinder 12, and a corresponding limit structure can be designed according to the shapes of the support cylinder 11 and the connecting cylinder 12.

If the support cylinder 11 and the connecting cylinder 12 are both cylindrical, the nut sleeve 17 is easily clamped at the outer edge of the inner wall of the support cylinder 11, so that a strip-shaped hole can be axially formed in the support cylinder 11, a positioning bulge connected in the strip-shaped hole in a sliding manner is fixedly arranged on the nut sleeve 17, and the nut sleeve 17 is limited to rotate along with the tensioning screw 16 by being clamped in the strip-shaped hole through the positioning bulge.

If the support barrel 11 and the connecting barrel 12 are both square barrels, a square positioning plate can be directly and fixedly connected to the nut sleeve 17, the size of the positioning plate is basically consistent with the inner size of the support barrel 11, the positioning plate is circumferentially clamped on the inner wall of the support barrel 11, the nut sleeve 17 cannot rotate along with the tensioning screw 16, the positioning plate can be axially and slidably abutted against the inner wall of the support barrel 11, the positioning plate is axially in sliding fit with the inner wall of the support barrel 11, and the nut sleeve 17 can be axially moved along the support barrel 11 to abut against the end of the connecting barrel 12.

Preferably, the two cylinder supporting seats 15 are respectively disposed at one end of the supporting cylinder 11 away from the tensioning wheel 13 and one end of the connecting cylinder 12 close to the tensioning wheel 13. By adopting the mode that the tensioning oil cylinder 14 pushes the tensioning wheel 13 in advance, enough space needs to be reserved for the tensioning oil cylinder 14, and considering the actual space and the size of the tensioning oil cylinder 14, it is more appropriate to arrange the two oil cylinder supporting seats 15 at two ends which are far away in the axial direction respectively.

Preferably, the tension wheel 13 is mounted at one end of the connecting cylinder 12 through a U-shaped connecting plate 19, a closed end of the U-shaped connecting plate 19 is fixedly connected with one end of the connecting cylinder 12, the cylinder support seat 15 is fixedly connected to the closed end, and the tension wheel 13 is rotatably mounted between open ends of the U-shaped connecting plate 19. The tension wheel 13 is mounted on one end of the connecting cylinder 12 through a U-shaped connecting plate 19, and the cylinder support 15 can be arranged on the U-shaped connecting plate 19.

Preferably, the support cylinder 11 is connected with a guide wheel 110 through a connecting arm 111, one end of the connecting arm 111 is fixedly connected with the support cylinder 11, the other end of the connecting arm 111 is connected with the rotatable guide wheel 110, one side of the connecting arm 111 close to the tension wheel 13 is fixedly connected with the cylinder support seat 15, the guide wheel 110 required for normal operation of the crawler 113 is mounted on the support cylinder 11 through the connecting arm 111, and at this time, the cylinder support seat 15 can be arranged on the connecting arm 111.

Example 3

On embodiment 1's basis, as shown in fig. 8, threshing cleaning system includes that the mount is located threshing machine body 21 on the traveling system is in with the setting cylinder 22, notch board 23, cleaning fan, sieve box 24, seed grain screw feeder 25 and miscellaneous surplus screw feeder 26 on threshing machine body 21, header a with 22 front side intercommunication, cylinder 22's outside cover has notch board 23, and its rear side is equipped with row grass mouthful department is equipped with chopper 8, sieve box 24 sets up cylinder 22's below, and its upper end is equipped with cleaning sieve 29, the fan is located sieve box 24's front end, its rear side top air-out towards cleaning sieve 29 to pierce through cleaning sieve 29's sifter, sieve box 24 bottom front side intercommunication seed grain screw feeder 25, seed grain screw feeder 25 intercommunication grain box d, sieve box 24 bottom rear side intercommunication miscellaneous surplus screw feeder 26, the kernel auger 25 is communicated to the front side of the roller 22.

In the embodiment, the chassis frame 112 is not provided, and the threshing machine body 21 and the chassis frame are combined into a whole to form a structural frame for mounting other parts, so that the structural arrangement is more compact.

The embodiment aims at the problem that the overall structure layout of the existing small axial flow wheel type grain combine harvester is not compact enough, changes of the overall layout are carried out, all functional parts are reasonably arranged, more structures are arranged in a limited space, and the overall harvester can better meet the requirement of miniaturization.

The transmission connection in embodiment 3 is to perform the linkage of each component by a transmission component such as a belt or a chain, to realize the function of each component itself, and the communication is the transmission of materials from one component to another.

Example 4

On the basis of embodiment 3, as shown in fig. 9 and 10, the threshing device further comprises a trash circulation re-threshing mechanism, the trash circulation re-threshing mechanism comprises a grain lifter 27 and a re-threshing mechanism 28, the grain lifter 27 is assembled outside one side of the threshing machine body 21, a feed port at the lower end of the grain lifter is connected and communicated with a discharge end of the trash auger 26, the re-threshing mechanism 28 is assembled on the upper portion of one side of the threshing machine body 21, a feed port of the re-threshing mechanism is connected and communicated with a discharge port at the upper end of the grain lifter 27, a seed outlet is arranged on one side of the re-threshing mechanism 28 close to the threshing machine body 21, and the seed outlet penetrates through an opening adapted to one side of the threshing machine body 21 and extends to the upper portion of one side of the sorting screen.

Specifically, the harvested grain enters the roller 22, the grain is extruded and threshed in the roller 22, because the concave plate 23 is dense in the front and thin in the middle of the sieve mesh, the threshed grain falls on the cleaning sieve 29 below the concave plate 23, the sieved grain falls on the grain collecting area at the bottom of the sieve box 24, the threshed impurity falls on the impurity collecting area at the bottom of the sieve box 24 through the back of the concave plate 23, the impurity is conveyed to the grain lifter 27 through the impurity auger 26, the grain lifter 27 lifts and conveys the grain to the re-threshing mechanism 28 above the grain lifter for re-threshing, after separation, the grain falls on the cleaning through the grain outlet, the impurity is discharged, the impurity generated by the thresher in the whole process is re-threshed in the re-threshing mechanism 28, the normal threshing is not influenced by the thresher, the loads of the roller 22 and the cleaning sieve 29 are not increased, and the impurity discharge condition of grain loss can be effectively improved, the whole device has enhanced rethreshing capability, is suitable for various paddy rice difficult to thresh, and prevents the impurity materials from circulating back and forth between the screen box and the impurity.

It should be noted that: generally, the seed collecting region and the impurity collecting region are both groove regions with tapered bottoms.

Preferably, the trash auger 26 is a horizontally disposed screw conveyor.

More specifically, the trash auger 26 is a conventional screw conveyor, and a part of the housing in the trash collecting area is open, so that trash can enter the trash collecting area for good conveying.

In a preferred embodiment, the grain elevator 27 is a vertically disposed screw conveyor.

In this scheme, the grain lifter 27 adopts a conventional screw conveyor, and the conveying effect is relatively stable.

As a preferred embodiment, the re-threshing mechanism 28 includes a threshing cylinder 281, a rotating shaft 282, a helical blade 283, re-threshing teeth 284 and a throwing plate 285, the threshing cylinder 281 is provided with a feed inlet at one end, the feed inlet is connected and communicated with the discharge outlet of the grain lifter 27, the rotating shaft 282 is rotatably provided in the threshing cylinder 281, one end of the rotating shaft 282 is connected with a power device for driving the rotating shaft to rotate, the helical blade 283 is provided on the outer circumference of one end of the rotating shaft 282 corresponding to the discharge outlet of the grain lifter 27, a plurality of throwing plates 285 are vertically provided on the outer circumference of the other end of the rotating shaft along the radial direction, the throwing plates 285 are vertically provided along the circumferential direction of the rotating shaft 282, the surface of the rotating shaft 282 between the helical blade 283 and the throwing plate 285 is covered with the re-threshing teeth 284, the threshing cylinder 281 is hollowed out corresponding to one end wall of the throwing plate 285, the threshing cylinder 281 is covered with seed holes on one side close to the grain threshing machine, and the seed holes jointly form the seed outlet.

In the scheme, the sundries enter a feeding hole at one end of a threshing cylinder 281 through a grain lifter 27, are conveyed to the other end of the threshing cylinder 281 under the rotating action of a helical blade 283 on a rotating shaft 282, and are subjected to secondary extrusion threshing through a re-threshing tooth 284 area of the rotating shaft 282 in the conveying process, a grain outlet of a separated grain size is screened and falls on a sorting screen 29, and the rest of the grains are thrown out of the other end of the threshing cylinder 32 through a rotating throwing plate 285 and are discharged outside.

The following are specifically mentioned: the other end of the threshing cylinder 281 is arranged in a hollow way at one side deviating from the threshing machine, and the other side is arranged in a closed way, so that the impurity and residue after secondary threshing can be smoothly discharged.

Of course, a mounting area for the device threshing cylinder 281 may be provided on one side of the thresher, which mounting area may be a shell structure.

The following are specifically mentioned: in this embodiment, the shafts of the tailing auger 26, the grain elevator 27 and the re-threshing mechanism 28 can be linked by a belt or a chain transmission pair, that is, the three share one power device, and power mechanisms for rotating the shafts of the devices can be separately arranged.

As a preferred embodiment, as shown in fig. 11, the threshing cylinder 281 is formed by splicing two housings 2811 having a semicircular ring shape in cross section, wherein one of the housings 2811 penetrates through an opening adapted at one side of the grain threshing machine, and the surface of the housing 2811 is covered with the seed holes.

In this embodiment, the threshing cylinder 281 is of a combined type housing structure, and the production process is simple and the assembly is convenient.

Preferably, a plurality of re-threshing protrusions 2812 are uniformly provided on the inner wall of the threshing cylinder 281 along the circumferential direction thereof, and each of the re-threshing protrusions 2812 is provided along the axial direction of the threshing cylinder 281.

In this scheme, the design of rethreshing sand grip 2812 can promote the effect of miscellaneous surplus secondary threshing, thresh more thoroughly.

As a preferred embodiment, the threshing device further comprises a material guiding plate 200, wherein the material guiding plate 200 is disposed at one side of the interior of the grain threshing machine, one end of the material guiding plate 200 is located below the grain outlet of the re-threshing mechanism 28, and the other end of the material guiding plate extends obliquely downward to above the sorting screen 29.

In this embodiment, the material guide plate 200 is arranged to enable the grain grains sieved by the grain outlet to smoothly slide down on the cleaning sieve 29 along the material guide plate 200 for cleaning and collection.

Example 5

On the basis of embodiment 3, as shown in fig. 12, the cleaning fan includes a front fan 210 and a rear fan 211, the front fan 210 is disposed at the front side of the screen box 24 and below the front side of the cleaning screen 29, and the air outlet direction thereof is inclined upward from front to rear through the front middle region of the cleaning screen 29, the rear fan 211 is disposed at the rear of the screen box 24 and below the rear section of the cleaning screen 29, and the air outlet direction thereof is inclined upward from front to rear through the rear region of the cleaning screen 29.

In this embodiment, the wind blown by the front fan 210 covers the front section and the middle area of the cleaning sieve 29 (the arrow in the figure indicates the wind direction), so as to ensure that the impurities in the front section and the middle area are swept and removed, the wind blown by the rear fan 211 can cover the rear section or the middle and rear sections of the cleaning sieve 29, so as to ensure that the feeding amount of the threshing machine is increased, the rear section of the cleaning sieve 29 can also obtain good cleaning coverage, so as to ensure the effectiveness of removing the impurities, and improve the condition that the impurities in the rear section of the sieve box 24 of the existing equipment are easy to deposit and affect the cleaning operation.

Specifically, the method comprises the following steps: the tail part is additionally provided with the rear fan 211, so that the impurity part at the rear section of the sieve box 24 has upward airflow, the flow velocity loss and the pressure loss are compensated, and the cleaning capacity is improved.

Example 6

In addition to embodiment 5, as shown in fig. 12, the present invention further includes an auxiliary fan 212, the auxiliary fan 212 being disposed in the front portion of the screen box, being located between the upper rear portion of the front fan 210 and the front portion of the cleaning screen 4, and having an air outlet direction that obliquely extends upward from front to rear through the front portion of the cleaning screen 4.

In the embodiment, the wind blown out by the auxiliary fan 212 obliquely penetrates the front section of the sorting screen backwards, so that the current situation that high-yield crops are accumulated at the front part of the screen surface can be effectively solved, and the impurity removing effect is better.

Preferably, the front fan 210, the rear fan 211 and the auxiliary fan 212 are all fans in the prior art, and are directly installed inside the screen box.

Of course, the number of the front fan 210, the rear fan 211 and the auxiliary fan 212 may be set to 1 or more according to the actual situation, and when a plurality of fans are set, the fans are distributed in a side-by-side spaced manner or in other more reasonable manners.

In a preferred embodiment, the rear end of the bottom of the screen box 24 is provided with an inward concave mounting groove 241, a notch is formed above the rear side of the mounting groove 241, and the rear fan 211 is disposed in the mounting groove 241 and blows air through the notch of the mounting groove 241.

In this embodiment, the installation groove 241 is favorable to the good assembly of the rear fan 211, and the installation groove 241 defines the notch as the air outlet, so that the general air outlet direction of the rear fan 211 is defined, the situation of scattered air outlet of the rear fan 211 is avoided, and the cleaning effectiveness of the rear fan 211 is improved.

In a preferred embodiment, an airflow direction and volume regulator 242 is provided at the opening of the installation tub 241, and the airflow direction and volume regulator 242 is used to regulate the volume and direction of the airflow blown out through the opening of the installation tub 241.

In this embodiment, the wind direction and air volume regulator 242 can finely adjust the size of the notch of the mounting groove 241, specifically, under the condition of fixing the position on the notch, the distance between the lower edge and the upper edge of the notch is adjusted, the position of the lower edge can be adjusted, the air volume of the air discharged through the notch can be adjusted, the direction of the air discharged is finely adjusted, and the operation is flexible.

More specifically, the airflow direction and volume adjuster 242 is a valve plate disposed at a lower rear portion of the notch of the mounting groove area 241, and the valve plate is vertically movable to adjust the size of the notch of the mounting groove area 241, thereby adjusting the volume and the airflow direction of the air blown from the notch of the mounting groove area 241.

In this solution, the wind direction and air volume regulator 242 employs a conventional valve plate member, which is simple and convenient to operate.

The best, above-mentioned valve plate inclines towards the front side top, and the overall arrangement of valve plate to the front side top slope for the plane at notch size and notch place can obtain effectual regulation at the in-process that the valve plate removed, can play the effect of obvious fine setting wind direction.

Generally, any end of the left end and the right end of the valve plate is connected with a connecting rod penetrating out of the grain threshing machine, the valve plate can be driven to move up and down along the rear side of the notch of the mounting groove area 241 through the connecting rod, the valve plate can be operated outside the threshing machine through the connecting rod to move and adjust, and the operation is simpler, more convenient and faster.

Generally, the bottom wall of the sieve box corresponding to the front side of the mounting groove 241 is curved and extends upward and slantwise toward the rear of the grain threshing machine.

In this scheme, in principle, the bottom wall of the screen box tends to extend obliquely upward along the rear end of the thresher, and the overall bottom wall is inclined to facilitate guiding the wind direction blown out by the front fan 210, so that the wind direction is obliquely blown out upward toward the rear side and penetrates through the cleaning screen, and no downward dispersion loss exists.

Example 7

In addition to embodiment 5, as shown in fig. 13, 14, and 15, the air guide plate 4 is further included, the air guide plate 4 is installed in the screen box 24 and located behind the air outlet of the front fan 210, the air guide plate 4 includes an air guide bottom plate 41 horizontally arranged in the front-back direction, a protruding triangular pyramidal air guide portion 42 is arranged on the upper portion of the middle area of the air guide bottom plate 41, the front end of the air guide portion 42 is a conical point, the rear end thereof is a conical bottom end, the left side and the right side thereof are respectively two bilaterally symmetrical conical surfaces, the conical surfaces on the two sides respectively form air guide surfaces, and the front end of the air guide portion 42 is close to the middle of the air outlet of the front fan 210.

In this embodiment, two side areas of a ridge line (a in the figure) intersecting the left and right side surfaces of the air guiding portion 42 form two air flow dividing regions, the air flow enters from the upper surface of the front end of the air guiding bottom plate 41, is divided by the protruded ridge line, and flows to the two air flow dividing regions respectively, and finally flows out uniformly along the rear sides of the air guiding surfaces of the two sides through the two air flow dividing regions, the design is very reasonable, the structural design is reasonable, the air pressure of the air flow entering from the front end is higher in the middle part, the pressure distribution of the air flow is more uniform in the transverse air flow, the distribution of the air flow is more uniform in the rear end of the air flow dividing regions of the two side ends of the rear end, the air suction area of the two side ends of the rear end is reduced, the air guiding plate 4 is integrally formed at an installation angle inclined towards the upper part of the rear, the installation angle is consistent with the air direction of the front fan 210, the air resistance can be reduced, and the good air flow dividing effect can be ensured, the installation of the air guiding plate 4 can improve the common transverse air flow and the common existing harvester in the air outlet section of the traditional harvester The grain cleaning effect of the harvester is improved, and the operating efficiency and the economic benefit of the harvesting machine are improved.

Preferably, the air guiding portion 42 is an isosceles triangular pyramidal member, a plane where the rear end of the air guiding portion 42 is located and the upper surface of the air guiding bottom plate 41 are mutually perpendicular planes, and two side surfaces of the air guiding portion 42 are mutually bilaterally symmetrical, so that the shape design is reasonable, and the flow distribution is more uniform.

Generally, the air guide bottom plate 41 is a rectangular plate, and both front and rear end edges thereof extend in the left-right direction.

In a preferred embodiment, the air guiding portion 42 includes two triangular plates 421 having the same specification, the two triangular plates 421 are symmetrically disposed in the left-right direction, one side of each of the two triangular plates 421 is connected to the upper portion of the air guiding bottom plate 41 in the front-rear direction (forming a ridge line s), the other side of each of the two triangular plates 421 is connected to the left and right sides of the upper portion of the air guiding bottom plate 41, and a plane where the remaining one side of each of the two triangular plates 421 is located forms a tapered bottom end of the air guiding portion 42.

In this embodiment, the air guiding portion 42 is designed as a hollow member formed by splicing, which has light weight, less material consumption, low production cost and more convenient installation.

Generally, the air guide bottom plate 41 and the triangular plate 421 are both stainless steel plates, and are welded to each other.

Of course, the area of the air guiding bottom plate 41 corresponding to the air guiding portion 42 may also be designed as a hollow surface, thereby reducing the material consumption.

In addition, the air guiding bottom plate 41 may only need to ensure that the upper portion thereof is a plane, and the lower portion thereof may have a protruding profile structure, so as to facilitate installation.

Generally, the intersection point above the rear ends of the two triangular plates 421, the foot between the air guiding bottom plate 41 and the front section taper point of the air guiding portion 42 are located on the same plane, and an included angle (specifically, refer to an angle α in the drawing) of 45 ° to 60 ° is formed between the intersection point above the rear ends of the two triangular plates 421 and the ridge line s.

In consideration of the design of reducing the wind resistance, the joints between all the surfaces are rounded.

Preferably, a baffle 411 inclined toward the lower rear portion is provided along a side line at the rear end of the air guide bottom plate 41.

In this scheme, the design of guide plate 411 can restrict the flow direction of the air current after the even partial pressure of self-guide plate rear end to a certain extent.

Example 8

Based on embodiment 5, as shown in fig. 16, 17 and 18, the front fan 210 is a cross-flow and cross-flow combined fan, and the specific structure of the cross-flow and cross-flow combined fan is as follows:

the multi-blade cross flow fan comprises a machine shell 2101, a rotating shaft 2102, a plurality of groups of cross flow blades 2103 and a plurality of cross flow blades 2104, wherein an air inlet is arranged at any one end or two ends of the machine shell 2101, an air outlet which transversely extends towards the two ends of the machine shell is arranged at one side of the machine shell, a blocking plate 2105 is detachably arranged at the air inlet, the rotating shaft 2102 is transversely and rotatably assembled in the machine shell 2101, one end of the rotating shaft extends out of the corresponding end of the machine shell 2101, a radial air inlet is arranged at the upper part of the machine shell 2101, a cover plate 53106 is detachably arranged at the radial air inlet, the plurality of groups of cross flow blades 2103 are axially assembled on the rotating shaft 2102 at intervals, the plurality of cross flow blades 2104 are respectively and detachably arranged at the periphery of the plurality of groups of cross flow blades 2103 and are circumferentially distributed at intervals along the rotating shaft 2102, and each cross flow blade 2104 extends along the axial direction of the rotating shaft 2102.

The crossflow and crossflow combined fan of the embodiment can switch two operation states, specifically as follows:

1) when the cross-flow centrifugal fan is used as a cross-flow centrifugal fan, the blocking plate 2105 and all the cross-flow blades 2104 are removed, and the cover plate 53106 is installed, so that air is ensured to enter the fan from the air inlets at the two ends and is exhausted from the air outlet at the side end, and the cross-flow centrifugal fan is used as a traditional cross-flow fan.

2) When the cross-flow centrifugal fan is used, the blocking plate 2105 and the cross-flow blades 2104 are installed, the cover plate 53106 is removed, air is ensured to enter the fan from the radial air inlet, air is exhausted from the air outlet at the side end, and the cross-flow centrifugal fan is used as a simple cross-flow fan.

When the cross flow and cross flow combined fan is used in the grain threshing machine, the cross flow and cross flow combined fan is installed according to the position of the front transmission fan 210, and when different air volumes are needed, different modes (cross flow or cross flow) can be flexibly switched for use, so that different air volumes and cleaning effects can be obtained.

The fan of this embodiment can realize that a tractor is nimble to be adjusted and realize the usage of two kinds of fans, and overall structure reasonable in design can adjust two kinds of air inlet and air-out modes of crossing current or through-flow in a flexible way to the nimble use of adaptation different occasions, whole easy operation, convenience.

Preferably, the cross section of the cross-flow blades 2104 is a curved surface, and the cross-flow blades 2104 have the same size, and the cross-flow blades 2104 are distributed in the same direction around the periphery of the cross-flow blades 2103.

In this scheme, the cross-flow blades 2104 are designed with reference to the shape of the existing cross-flow blades 2104 on the market when being installed and used, and specifically, the blades with circular arc-shaped cross sections are adopted to ensure good flow of air flow.

Preferably, the cross section of the cross flow blade 2104 is circular arc.

The cross flow blades 2104 are distributed in the same direction around the periphery of the cross flow blade 2103, and means that: the radial direction of the blades 4 is distributed according to a uniform clockwise or counterclockwise distribution along the extending direction.

Preferably, a plurality of connecting seats 2107 corresponding to the cross flow blades 2104 one to one are arranged at intervals along the circumferential direction of the periphery of each group of the cross flow blades 2103, and the cross flow blades 2104 are detachably connected with the corresponding connecting seats 2107 through bolts.

In this scheme, through the bolt that runs through it, through the through-flow blade 2104 with the bolt hole realization of correspondence on the connecting seat 2107 be connected, both connected mode is simple, swift.

Most preferably, in this embodiment, the number of the flow-through blades 2104 is 8 to 10.

In a preferred embodiment, the housing 2101 includes an upper half and a lower half assembled together, the air outlet is formed at one side of the lower half, and the upper half forms the cover 53106.

In this embodiment, the housing 2101 is designed to have a combined structure, which is simple in manufacturing process and convenient to assemble.

Example 9

On the basis of embodiment 3, as shown in fig. 19, 20, 21 and 22, the left and right sides of the sorting screen 29 are respectively detachably equipped with a hanging shaft 51 perpendicular to the hanging shaft, the hanging shaft 51 passes through assembly holes adapted to the two sides of the thresher body 21, one end of the hanging shaft passing through the assembly holes is respectively connected with a suspension component 52 movably connected with the upper part of the corresponding side of the thresher body, a cover plate 53 is detachably installed at the assembly holes, a waist circular hole 531 penetrating through the cover plate 53 is arranged on the cover plate 53 along the front-back direction, the hanging shaft 51 passes through the corresponding waist circular hole 531, the hanging shaft 51 is sleeved with a sealing shielding component 54 capable of elastically moving along the axial direction of the hanging shaft, and the sealing shielding component 54 is attached to the inner side of the corresponding cover plate 53.

In this embodiment, generally, a driving mechanism connected to the hanging shaft is disposed outside the threshing machine body 21, the driving mechanism drives the hanging shaft 51 to swing back and forth along the waist-round hole 531 to realize the vibrating screening of the sorting screen 29, and during the movement of the hanging shaft 51, the sealing and shielding component 54 always keeps the elastic close-fitting state with the cover plate 53, so as to realize the good sealing of the waist-round hole 531, and improve the problems of loose sealing and easy breakage of the conventional equipment.

Preferably, a mounting flange 511 is fixed to one end of the hanging shaft 51, and one end of the hanging shaft 51 extends into a matching shaft hole on the corresponding side of the sorting screen 29 and is fixedly connected to the corresponding side of the sorting screen 29 through the mounting flange 511.

In this embodiment, the hanger shaft 51 is connected to and assembled with the sifter 29 through the mounting flange 511, so that the structure is more secure, and specifically, the mounting flange 511 is assembled with the sifter 29 through a plurality of bolts penetrating through the mounting flange 511.

In a preferred embodiment, the sealing and shielding assembly 54 includes an elastic member 541 and a pressing plate 542, the pressing plate 542 is vertically installed in a front-rear direction, is fitted around the corresponding hanging shaft 51, and is attached to the inner side of the corresponding cover plate 53, and the elastic member 541 is connected between the pressing plate 542 and the corresponding side of the cleaning screen 29.

In this embodiment, the elastic member 541 is always in a compressed state, so as to ensure that the pressing plate 542 is always kept in a close fit state with the inner side of the cover plate 53 under the elastic action thereof, and the pressing plate and the cover plate do not slide normally relative to each other in the forward and backward movement process of the sorting screen 29.

Preferably, the elastic member 541 is a spring, which is fitted around the hanging shaft 51, and both ends of which are connected to the pressing plate 542 and the corresponding side of the cleaning sieve 29, respectively.

In a preferred embodiment, a wear-resistant layer 543 is provided on a surface of the platen 542 that is bonded to the cover plate 53.

In this embodiment, the design of the wear-resistant layer 543 makes the contact with the cover plate 53 and the relative sliding more wear-resistant, thereby reducing the number of maintenance operations.

Preferably, the wear-resistant layer 543 is a wear-resistant plate fixed to a surface corresponding to the pressure plate 542, and the wear-resistant plate is typically a plastic plate.

Specifically, the method comprises the following steps: the pressing plate 542 and the wear-resistant layer 543 are respectively provided with a through hole matched with the hanging shaft 51, and the through holes are sleeved on the hanging shaft 51.

In a preferred embodiment, the suspension assembly 52 includes a suspension rod 521 and a connecting seat 522, the suspension rod 521 is vertically disposed, one end of the suspension rod 521 is connected to a bearing rotatably engaged with the suspension shaft 51, and the upper end of the suspension rod 521 is rotatably connected to the connecting seat 522 and is assembled and connected to the upper portion of the corresponding side of the machine body through the connecting seat 522.

In this embodiment, the upper end of the suspension rod 521 is rotatably connected (movably connected) with the connecting seat 522, and the lower end thereof is connected with the bearing on the suspension shaft 51, so that the suspension rod 51 can rotate relative to the suspension shaft 521 via the bearing, thereby ensuring smooth forward and backward vibration of the sorting screen 29, and ensuring stable integral hoisting and firmer structure of the sorting screen 29.

As a preferred embodiment, the cleaning sieve further comprises two slide ways 55, the two slide ways 55 are symmetrically assembled on the inner walls of the two sides of the machine body, the rear ends of the slide ways 55 extend to the rear impurity outlet of the machine body, rolling members 294 which are in rolling fit with the two slide ways 55 are respectively arranged on the two sides of the bottom of the front end of the cleaning sieve 29, and the assembly height of the slide ways 55 is lower than the height of the cleaning sieve 29 in which the rear rolling members 294 are installed.

In this embodiment, the cooperation of the two runners 55 and the rolling members 294 is very beneficial for the quick and labor-saving installation of the sorting screen 29 in the interior of the machine body in the previous period, and the specific installation process is as follows:

in the early stage of installation, the hanging shaft 51 is separated from the cleaning sieve 29, the cleaning sieve 29 is hung by the aid of a hoisting mechanism and is fed from a sundry outlet at the rear end of the machine body, when the cleaning sieve 29 is fed, rolling pieces 294 on two sides of the bottom of the front end of the cleaning sieve 29 are respectively supported on two slide ways 55 in a rolling mode, then a worker can push the cleaning sieve 29 into the machine body along the slide ways 55, after the cleaning sieve 29 reaches a designated position, the hanging shaft 51 and the hanging rod 521 are installed on two sides of the cleaning sieve 29, then the hoisting mechanism is operated to hoist the cleaning sieve 29 to enable the rolling pieces to thresh the slide ways 55, the hanging rod 521 is connected with a connecting seat 522 which is installed on the upper portion of the two sides of the machine body in advance, finally, the cover plate 53 is fixed to ensure that the inner side of the cover plate 53 is in close contact with the sealing shielding component 54, and the whole structural design improves the situation that the traditional harvester sieve box needs to push the sieve box into the machine body by means of multiple manpower, and then the hanger rod is hoisted, so that the assembly process is simpler, time and labor are saved, the efficiency is higher, and meanwhile, the hanger rod is more rapid and convenient to take out and maintain at the later stage.

The slide 55 adopts a structural design of splicing the front section and the rear section, the front section slide is fixedly assembled on the inner wall of the machine body and slightly inclines towards the lower part of the front end, the rear end of the rear section slide extends to the residual outlet and slightly inclines towards the lower part of the rear end integrally, and the screen box is convenient to disassemble and assemble.

Preferably, the hanging shafts 51 are respectively assembled at the front end and the rear end of the left side and the right side of the sorting screen 29, and the hanging shafts 51 at the two sides are symmetrically distributed in the left-right direction, so that the uniform hoisting stress at the two sides of the sorting screen 29 is ensured, and the front-back movement is more stable and smooth.

Example 10

On the basis of embodiment 3, as shown in fig. 1, 23, 24, 25, 26, and 27, the grain tank c includes two side tank bodies 61 distributed left and right, any one of the side tank bodies 61 can independently rotate in a direction away from or close to the other side tank body 61, opposite side walls of the two side tank bodies 61 are both open, the two side tank bodies 61 can rotate to a closed state where the opposite side walls are abutted and communicated with each other, a grain inlet 611 for communicating with a grain auger 25 is provided at the upper part of one of the side tank bodies 61 (the grain auger 25 is communicated with the grain inlet 611 through a grain input device for conveying grains), and the grain inlet 611 can be turned over relative to one side wall of the side tank body 61 where the grain inlet 611 is located.

The positions of the shafts of the two side box bodies 61 of the utility model when rotating can be respectively positioned at the front side and the rear side of the grain tank c, and also can be positioned at the front side and the rear side simultaneously.

In one embodiment of the present invention, the two side cases 61 are provided with fixing means at the rear side thereof, and each side case 61 is rotatably coupled to the fixing means.

In the above embodiment, preferably, the fixing device is a column 62, and each of the side cases 61 is rotatably mounted on one of the columns 62; a connecting rod 621 is fixed between the two upright posts 62, and the connecting rod 621 can fix the position between the two upright posts 62, so that the two side box bodies 61 can keep stable when rotating around the upright posts 62 respectively; and the connecting bar 621 enables the abutment between the two side cases 61 to be made tighter in the closed state.

In the above embodiment, preferably, the side box 61 and the upright 62 are connected by a rotary connecting member, which includes but is not limited to one of a hinge, a torsion spring, and a rotary bearing; further preferably, the side box 61 and the upright 62 are pivotally connected by a hinge.

The opposite side walls between the two side cases 61 of the present invention are provided with fastening connectors by which the two side cases 61 are tightly connected to each other in the closed state.

The fastening connectors include, but are not limited to, snaps, detents, and fasteners.

In one embodiment of the utility model, the fastening connection is a buckle 63; buckles 63 are arranged on the upper edges of the opposite side walls between the two side box bodies 61, and the two side box bodies 61 are mutually fixed through the buckles 63; the two side cases 61 in the closed state can be fixed to each other by providing the buckle 63.

Each side box body 61 is provided with a pull rod 65, and each pull rod 65 provides a pulling force towards the other side box body 61 for the corresponding side box body 61; when the closed state is realized, the two side box bodies 61 are more stably and tightly abutted, and the grains are further prevented from being leaked between the two side box bodies 61.

As shown in fig. 5, the connection manner of the tie rod 65 of the present invention includes, but is not limited to, any structure capable of maintaining the closed and abutting state of the two side cases 61, and specifically includes the following two preferred embodiments: one end of the pull rod 65 is connected to the side carriage body 61, and the other end is connected to a fixed frame 67.

A preferred embodiment is a detachable connection between two tie rods 65.

Another preferred embodiment is that the two tie rods 65 are each detachably connected to other fixed mechanical structures connected to the rotating grain bin and fixed in position between the two side boxes 61 in the closed position.

At least one of the opposite side walls of the two side cases 61 of the present invention is provided with a sealing strip 613; in the closed state, the seal 613 can further seal the abutment between the two side cases 61.

In one embodiment of the present invention, a grain inlet 611 for inputting materials is provided at the upper part of one of the side boxes 61, and the grain inlet 611 can be turned over relative to one side wall of the side box 61 where the grain inlet 611 is located; the grain inlet 611 is fixedly connected with the grain input device, and the grain input device extends into the grain inlet 611; the seeds enter the grain inlet 611 through the seed input device; because the grain tank is in a closed state when the grains are input, the upper parts of the two side box bodies 61 are communicated, and the grains input by the grain input mechanism can enter the two side box bodies 61.

In the above embodiment, the edge of the grain inlet 611 abutting against the side box 61 can be sealed, but the sealing does not affect the turning of the side box 61 and the rotation of the side box 61 itself.

In the above embodiment, preferably, the grain input device is hermetically connected with the grain inlet 611 through a sealing plate 615; the sealing plate 615 prevents leakage of the kernel through a gap that may exist at the connection of the kernel tube 66 and the grain inlet 611.

In the above embodiment, preferably, the grain input device is a grain barrel 66, the upper end of the grain barrel 66 is a throwing port 661, and the lower end is fixedly connected with the conveying mechanism 662; the upper part of the grain cylinder 66 extends into any grain inlet 611, and the outer side wall of the grain cylinder 66 and the grain inlet 611 are sealed and fixed through a sealing plate 615; kernel is transported into kernel barrel 66 by transport mechanism 662 and thrown through a throw port 661.

In the above embodiment, it is preferable that the position of the scattering opening 661 corresponds to the position of the two side case bodies 61 to be in open abutment, so that the kernels scattered by the scattering opening 661 can enter the two side case bodies 61 at the same time.

In the above embodiment, it is preferred that there is a space between the lower portions of the two side boxes 61, and that the lower portion of the grain bin 66 and the transport mechanism 662 are located in the space.

In the above embodiment, preferably, the grain inlet 611 extending from the upper portion of the grain supply barrel 66 can be turned over with respect to any side wall of the side box 61; since the grain cylinder 66 extends into the grain inlet 611, when the side box 61 at the side is opened, the grain cylinder 66 is easy to block the rotation; the grain inlet 611 on the side is arranged to be a reversible structure, and can be turned outwards relative to the side box body 61 to separate the grain cylinder 66 from the side box body 61, and then the side box body 61 is rotated to smoothly open the rotary grain tank.

In the above embodiment, preferably, the grain cylinder 66 is vertically arranged, and the side box 61 on the same side as the grain cylinder 66 is close to the side wall of the grain cylinder 66, and has a structure recessed into the side box 61, and the recessed structure corresponds to the grain cylinder 66, so that the grain cylinder 66 can be accommodated in the recessed structure, and the side wall of the side box 61 is prevented from obstructing the vertical extending structure of the grain cylinder 66.

In the above embodiment, preferably, the tops of the two grain inlets 611 are provided with the sealing covers 6111; the joint of the mutually through side walls of the two grain inlets 611 is provided with a hasp.

Each side box body 61 of the utility model is respectively provided with a grain outlet 614; each grain outlet 614 is fixedly connected with a grain unloading mechanism; the grain outlet 614 is positioned at the front side of the lateral box body 61, and the grain unloading mechanism corresponds to the positions of the two grain outlets 614.

The grain unloading mechanism basically comprises various grain unloading mechanisms, and the specific mode of connecting the grain outlet 614 is different according to the specific structure of different grain unloading mechanisms.

In one embodiment of the utility model, the grain unloading mechanism comprises a grain unloading auger 71, a grain storage box 72 and a plurality of transmission gears 73; the grain storage box 72 is positioned below the two grain outlets 614, and the side walls of the end parts of the grain storage box are respectively communicated with the two grain outlets 614; the grain unloading auger 71 extends along the length direction in the grain storage box 72; the grains in the two side box bodies 61 enter the grain storage box 72 through the grain outlet 614 and move to one side of the grain storage box 72 under the rotation of the grain unloading auger 71, and an outlet is arranged at the side to discharge the grains; turnover mechanisms are arranged in the two grain outlets 614, each turnover mechanism is rotatably fixed on the side wall of the grain outlet 614 through a shaft, transmission gears 73 are arranged on the shafts of the two turnover mechanisms, and the transmission gears 73 are positioned outside the grain outlets 614; the transmission chain is sleeved on the two transmission gears 73 and can transmit power to enable the two turnover mechanisms to turn over, when grains pass through the grain outlet 614, the turnover mechanisms can stir and throw the grains, and the situation that the grains are blocked in the grain outlet 614 is prevented. Be equipped with in the lateral part box 61 and unload grain shake device, shake of unloading the grain in-process prevents that seed grain from piling up in the box, influences and unloads grain smoothness nature.

Preferably, the harvester of the embodiment adopts the crawler-type harvester, and by arranging the split saddle type rotatable grain tank, in the harvesting operation process, when grain is fed and discharged, only the weight of the whole harvester is increased, the gravity center position cannot be changed, and the passing capacity of rotten lands and ridges of the existing crawler-type harvester is broken through.

Meanwhile, the comprehensive operation time of the crawler-type harvester is T, the operation time of the grain feeding process is T1, and the auxiliary operation time of the grain discharging process is T2; in the prior art, T1 is 60% T, T2 is 40% T; the harvester of the utility model, because the centre of gravity does not change, make the volume of the grain tank can be designed to be larger, in an embodiment, the volume of the grain tank is 5 cubic meters, at this moment, T2 is T40%/3, the working time of the grain feeding course is promoted to T1 is T-T2 is 86.7%, that is to say, the harvester that installs the rotatable grain tank of the saddle type of separate body unloads grain once, ordinary harvester needs to unload grain three times; therefore, the harvester breaks through the efficiency limit of the existing crawler machine, generates greater social benefits and has great significance.

The split saddle type rotatable grain tank of the utility model has the following dismounting process to the two side tank bodies 61 when in maintenance:

the operation of the harvester is stopped, the working parts of the rotary grain tank are closed, and the grain unloading mechanism is disassembled.

The pull rod 65 is disassembled to eliminate the pulling force applied to the two side box bodies; the cover 6111 at the top of the grain inlet 611 is opened, the buckle 63 is opened, and the contact between the two side boxes 61 is released.

The sealing plate 615 is detached, and the grain inlet 611 at the side is rotated towards the outside of the rotating grain tank, so that the grain cylinder 66 is separated from the side box body 61 at the side; the side box 61 on the side is rotated outwards to open the rotary grain tank, and the inside of the rotary grain tank is exposed, so that maintenance and overhaul can be carried out.

According to actual needs, the lateral box body 61 on the other side can be further opened in a rotating mode, so that the opening space of the rotating grain box is increased, and the maintenance and the overhaul are more convenient.

And after maintenance and overhaul, the steps are carried out in a reverse order, so that the rotary grain tank is closed.

According to the split saddle type rotatable grain tank, the side tank bodies 61 which can rotate independently are arranged, so that the operation of rotating the grain tank is more flexible during maintenance, and any side tank body 61 can be opened according to the specific position needing to be maintained, so that the problem that the maintenance can be carried out only by disassembling the whole machine in the prior art is solved. Meanwhile, the buckle 63, the pull rod 65 and the connecting rod 621 are arranged in the grain harvester, so that the abutting tightness between the two side box bodies 61 can be ensured, meanwhile, the sealing strip 613 is also arranged at the abutting position, the tightness is further improved, the sealing performance in a closed state is ensured while the side box bodies 61 can flexibly rotate, and the problems of mechanical failure and the like caused by the fact that grains enter between the two side box bodies 61 are solved.

Example 11

On the basis of the above embodiments 1-10, as shown in fig. 1, 8, 28 and 29, the shredder 8 is slidably mounted on a mounting bracket 81 fitted to the rear end of the traveling system, and can be fixed to the mounting bracket 81 by fasteners 82.

In this embodiment, chopper 8 adopts the assembly mode of horizontal slip, when reopening, only need remove fastener 82 fixed to one side slip of traveling system can, the opening process can not occupy great space, especially can not occupy the great space of front end, simultaneously, the integral sliding type assembly structure is simpler, makes things convenient for the dismouting and the maintenance of chopper 8.

Preferably, a mounting bracket 81 is provided at a rear end of the traveling system, and the shredder 8 is mounted on the mounting bracket 81.

In this scheme, the shredder 8 is mounted using a dedicated mounting bracket 81, the assembly size is more matched, and the fit before construction is tighter.

In a preferred embodiment, the mounting bracket 81 is an L-shaped bracket body, one end of which is vertical and the other end of which is horizontal, and the vertical end of which is vertically fixed to the rear end of the traveling system, the horizontal end of the mounting bracket 81 is located at the upper rear portion of the vertical end thereof, and the shredder 8 is fitted between the vertical end and the horizontal end of the mounting bracket 81.

In this embodiment, the mounting bracket 81 is simple in structural design, and the installation space layout of the shredder 8 is more reasonable.

In a preferred embodiment, a rail 83 is provided at a lower portion of a horizontal end of the mounting bracket 81 in a left-right direction, a slider 84 slidably coupled to the rail 83 is fixed to a top portion of the shredder 8, and the shredder 8 is fixed to a vertical end of the mounting bracket 81 by the fastening member 82.

In this embodiment, the mounting bracket 81 slides in a hanging state, the mounting structure is simple and reasonable, the mounting bracket can be moved conveniently and quickly, and the whole mounting bracket is fixed by the fastener 82, so that the structure is stable.

Preferably, the rear end surface of the shredder 8 is attached to the vertical end of the mounting bracket 81.

In this scheme, the chopper 8 pastes each other with installing support 81 and leans on, and the two is connected closely, and chopper 8 can obtain better support, and assembly structure is more firm.

Preferably, an installation side plate is extended outward from the rear end face edge of the shredder 8, and the installation side plate is fixed to the vertical end of the installation bracket 81 by a bolt penetrating the installation side plate, and the bolt constitutes the fastening member 82.

In this scheme, set up the installation sideboard at chopper 8 (casing) rear end edge, cooperate the bolt to laminate the after-fixing with the vertical end of installing support 81 again, the assembly is simpler, swift, and the dismouting is more convenient.

More specifically, the rail 83 is a groove-shaped rail, and the notch thereof faces rearward, and the slider 84 is provided at an upper portion thereof with a hook portion which is inserted into the groove of the rail 83 and slidably engaged with the rail 83.

In this scheme, the groove type structural design of track 83 cooperates the hook-shaped portion of slider 84 for whole chopper 8 is when the assembly, and the support in its vertical direction relies on slider 84 and the cooperation of hanging of track 83 inslot chamber, and simultaneously, the cooperation of the two also can allow the slip of left and right directions to take place between the two, and overall structure design is more reasonable.

Generally, the hook-shaped portion is provided with a rounded protrusion bent upward at the end, and when the groove cavities of the rest of the rails 83 are contacted, the rounded protrusion is designed to reduce the abrasion of the contact and sliding fit between the two.

In a preferred embodiment, a brace 811 is connected between the vertical end and the horizontal end of the mounting bracket 81, and an upper portion of the rear end surface of the shredder 8 is formed as a slope that abuts against the brace 811.

In this embodiment, the inclined plane design of bracing 811 is firstly to reinforce the structural strength between the vertical end and the horizontal end of installing support 81, that is, reinforce the structural strength of whole installing support 81, moreover, the inclined plane design on the upper portion of the rear end face of chopper 8 makes its rear end face closely laminate with bracing 811, and simultaneously, the lower plane of its rear end also closely laminates with the vertical end of installing support 81, this just makes the rear end face of chopper keep a closely laminating state with installing support 81 on the whole, the connection is compacter between the structure, the distribution of stress (and the distribution of force between installing support 81) is more even when chopper 8 assembles, that is to say, the assembly is more stable, firm.

Example 12

In addition to the above embodiments 1-10, as shown in fig. 30, the oil tank is designed to include a main oil tank 91, and the main oil tank 91 is disposed on one side of the chassis of the rice machine, and is rotatably mounted on the upper portion of either the left or right side of the chassis by a flip mounting assembly 92, and can be flipped left or right to the upper portion or the outer side supported on one side of the chassis by an external force.

In this embodiment, the main oil tank 91 is installed on one side of the chassis in a left-right rollover manner, so that the overall installation structure is simple, the occupied space is small, the installation is convenient and stable, and the later maintenance and daily maintenance are very facilitated.

In general, the main tank 91 is a rectangular parallelepiped, and the long side thereof extends in the front-rear direction, that is, the main tank 91 is a rectangular parallelepiped large-capacity tank, and a feed pipe for feeding the engine is connected to the upper portion of one end thereof.

In a preferred embodiment, the flip mounting assembly 92 includes a plurality of L-shaped support bars 921, the plurality of support bars 921 are spaced apart in a front-rear direction and are vertically arranged in a left-right direction, an outer side of an inflection point of the support bars 921 is rotatably connected to a longitudinal beam 93 at one side edge of the chassis, the main oil tank 91 is attached to an inner side of the support bars 921 and detachably connected to the support bars 921, and the support bars 921 are capable of being flipped left and right by an external force until one of the bar bodies is attached to and supported by an upper portion of the chassis or is separated from the chassis.

In this embodiment, the inner L-shaped surface of the support bar 921 is attached to the side surface and the bottom surface of the main oil tank 91, and the main oil tank 91 can be turned by rotating the support bar 921 during turning, so that the operation is convenient.

The following are specifically mentioned: a fastening member 922 for fixing the main oil tank 91 is provided on the inner side of each of the support rods 921.

The main oil tank 91 can be firmly fixed to the inner region of the support bar 921 by the fastening member 922, so that the main oil tank 91 does not shake or shift.

Specifically, the longitudinal beam 93 is rotatably sleeved with a lantern ring 924 corresponding to the support rods 921 one to one, and the inflection points of the support rods 921 are fixedly connected with the corresponding lantern ring 924.

Preferably, the fastening member 922 is a hoop, which is attached to the surface of the main oil tank 91, and both ends of the hoop are connected to the inner sides of the two rod bodies of the support rod 921.

In this embodiment, the fastening member 922 is formed with an existing anchor ear, and the anchor ear is preferably shaped to fit the upper surface and the other side surface of the main fuel tank 91, thereby ensuring that the main fuel tank 91 can be securely mounted in the inner side region of the plurality of support rods 921.

Generally, the fastener 922 adopts an L-shaped hoop, and is matched with the L-shaped support bar 921, so that the main oil tank 91 is stably installed.

Preferably, a locking member 923 for locking with the chassis is provided at a distal end of one of the support rods 921.

In this embodiment, the design of retaining member 923 makes the bracing piece 921 when overturning to leaning on in chassis one side upper portion (that is to say main oil tank 91 is in normal assembly position), through the locking of this retaining member 923 and chassis, ensures that the normal assembly use position of main oil tank 91 is fixed, and is more firm, can not overturn in the use, remove.

Optimally, above-mentioned retaining member 923 is the bolt, sets up the bolt hole at the end of bracing piece 921 (just keep away from the one end tip of its flex point promptly), and the corresponding position of the roof beam body on the chassis sets up the bolt hole of matching, and this retaining member 923 (bolt) is in normal position back at main oil tank 91, runs through two bolt holes to cooperation nut locking can.

Example 13

In addition to embodiment 12, as shown in fig. 31, the present invention further comprises a secondary oil tank 94, wherein the secondary oil tank 94 is installed on the rear side of the chassis of the rice machine, the bottom wall of the secondary oil tank 94 is lower than the bottom wall of the main oil tank 91, and the bottoms of the two are communicated with each other through an oil pipe 95, and an oil supply pipe for supplying oil to the engine is connected to the top of the secondary oil tank 94.

In this embodiment, the design significance of the secondary fuel tank 94 is: when the harvester runs on a slope surface, an oil feeding pipeline is connected to the upper part of one end, close to the tail, of a general main oil tank 91, the front end of the general main oil tank is communicated with an auxiliary oil tank 94 through an oil pipe 95, when the harvester normally runs on a flat road, the bottom wall of the auxiliary oil tank 94 is lower than the bottom wall of the main oil tank 91, therefore, according to the principle of a communicating vessel, the heights of the oil levels in the main oil tank 91 and the auxiliary oil tank 94 are equal, and the height of the oil level in the auxiliary oil tank 94 is higher than that in the main oil tank 91, therefore, when the whole oil level is insufficient, due to the design of the height difference between the two oil levels, the auxiliary oil tank 94 can still normally supply oil under the condition that oil cannot be normally sucked in the main oil tank 91, the condition that bottom oil cannot be effectively utilized in the traditional design of a single oil tank of the harvester is effectively improved, and the actual oil carrying capacity is far larger than the effective use amount of the oil.

In addition, when ascending, the front end of the main oil tank 91 inclines upwards, the internal fuel is concentrated in the inner cavity and the auxiliary oil tank 94, and the fuel can be well sucked and supplied, when descending, the front end of the main oil tank 91 inclines downwards, the temples are concentrated in the front end of the inner cavity, and the fuel delivery pipe 95 (oil pump) sucks in the front end of the main oil tank 91, so that the auxiliary oil tank 94 can be designed to ensure that the inside of the auxiliary oil tank still has a certain oil level for normal suction and supply due to the height difference, and the condition that the engine cannot suck oil locally and is flameout can not occur.

Preferably, the cross-sectional area of the secondary oil tank 94 is smaller than the cross-sectional area of the main oil tank 91.

Specifically, the method comprises the following steps: the main oil tank 91 generally adopts a large-capacity cuboid-shaped tank body with a long length, and the auxiliary oil tank 94 adopts a long-room-shaped tank body with a short length, so that when the internal oil level of the main oil tank 91 is low, the auxiliary oil tank 94 still has a considerable oil level inside the main oil tank for normal pumping due to the communicating vessel principle.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (13)

1. A grain combine harvester, characterized in that: including header, traveling system, transmission system, threshing cleaning system and grain tank, threshing cleaning system mount is located traveling system is last, the header erects traveling system's the place ahead, and with threshing cleaning system intercommunication, the grain tank mount is established traveling system is last, and is located threshing cleaning system the place ahead, and with threshing cleaning system intercommunication, transmission system includes the engine, and this engine mount is established traveling system's rear end, the engine with the header with threshing cleaning system transmission is connected.

2. A grain combine according to claim 1, wherein: the walking system comprises a chassis frame, a plurality of thrust wheels distributed in the front and back are arranged at the lower part of the chassis frame, a crawler belt is sleeved outside the plurality of thrust wheels, and the walking system also comprises a crawler belt tensioning device, the track tensioning device comprises a supporting cylinder, a connecting cylinder and a tensioning wheel, the tensioning wheel is arranged at one end of the connecting cylinder, the other end of the connecting cylinder extends into the supporting cylinder and is in sliding fit with the supporting cylinder, and the connecting cylinder further comprises an oil cylinder supporting seat, a tensioning oil cylinder and a tensioning locking structure, two oil cylinder supporting seats are arranged and are respectively and fixedly connected with the supporting cylinder and the connecting cylinder, two ends of the tensioning oil cylinder are respectively detachably connected with the two oil cylinder supporting seats, the tensioning locking structure is arranged on the supporting cylinder, the threshing and cleaning system is used for locking the relative positions of the supporting cylinder and the connecting cylinder, and the threshing and cleaning system and the grain box are all erected on the chassis frame.

3. A grain combine according to claim 1, wherein: threshing cleaning system includes that the mount is located threshing machine body on the traveling system is in with setting cylinder, notch board on the threshing machine body, clean fan, sieve case, seed grain screw feeder and miscellaneous surplus screw feeder, the header with cylinder front side intercommunication, the outside cover of cylinder has the notch board, and its rear side is equipped with row grass mouthful department is equipped with the chopper, the sieve case sets up the below of cylinder, its upper end is equipped with cleaning sieve, clean the fan set up in sieve bottom of the case portion, sieve bottom of the case portion front side intercommunication the seed grain screw feeder, seed grain screw feeder intercommunication the grain case, sieve bottom of the case portion rear side intercommunication miscellaneous surplus screw feeder.

4. A grain combine according to claim 3, wherein: still include miscellaneous surplus circulation rethreshing mechanism, miscellaneous surplus circulation rethreshing mechanism includes grain lifting mechanism and rethreshing mechanism, the grain lifting mechanism assemble in it is outside to thresh one side of organism, its lower extreme feed inlet with the discharge end of miscellaneous surplus screw feeder is connected and is communicate, rethread mechanism assemble in one side upper portion of threshing machine body, its feed inlet with the upper end discharge gate of grain lifting mechanism is connected and is communicated, rethread mechanism is close to one side of threshing machine body and is equipped with the seed grain export, and this seed grain export passes the opening of one side adaptation of threshing machine body, and extends one side top of sorting sieve.

5. A grain combine according to claim 3, wherein: cleaning fan includes preceding fan and back fan, preceding fan set up in sieve case front side, and be located the front side below of cleaning sieve, its air-out direction upwards link up from slope backward forward the preceding middle part region of cleaning sieve, back fan set up in sieve case rear portion, and be located the back end below of cleaning sieve, its air-out direction upwards link up from slope backward forward the rear portion region of cleaning sieve.

6. A grain combine according to claim 5, wherein: the secondary fan is arranged at the front part of the screen box, is positioned between the rear upper part of the front fan and the front part of the sorting screen, and the air outlet direction of the secondary fan is obliquely upwards communicated with the front part of the sorting screen from front to back.

7. A grain combine according to claim 5, wherein: the wind guide plate comprises a wind guide bottom plate horizontally arranged front and back, a protruding triangular-cone-shaped wind guide part is arranged at the upper part of the middle area of the wind guide bottom plate, the front end of the wind guide part is a cone point, the rear end of the wind guide part is a cone bottom end, the left side and the right side of the wind guide part are respectively provided with two bilaterally symmetrical conical surfaces, and the conical surfaces on the two sides respectively form a wind guide surface.

8. A grain combine according to claim 5, wherein: the front fan comprises a casing, a rotating shaft, a plurality of groups of cross flow blades and a plurality of cross flow blades, wherein air inlets are formed in any one end or two ends of the casing, air outlets transversely extending towards the two ends of the casing are formed in the front side of the casing, a blocking plate is detachably mounted at the positions of the air inlets, the rotating shaft is rotatably assembled in the casing along the left-right direction, one end of the rotating shaft extends out of the corresponding end of the casing, a radial air inlet is formed in the upper portion of the casing, a cover plate is detachably arranged at the positions of the radial air inlets, the plurality of groups of cross flow blades are axially assembled on the rotating shaft at intervals, the plurality of cross flow blades are detachably mounted on the peripheries of the plurality of groups of cross flow blades respectively and are circumferentially distributed at intervals along the rotating shaft, and each cross flow blade extends along the axial direction of the rotating shaft.

9. A grain combine according to claim 3, wherein: the utility model discloses a threshing machine, including threshing machine body, cleaning sieve, apron, assembly hole, apron, clearance sieve left and right sides detachable respectively are equipped with rather than the vertically axle that hangs, hang the axle and pass the pilot hole one end of pilot hole and be connected with respectively and to thresh the subassembly that suspends in midair of organism upper portion swing joint, apron is installed to assembly hole department detachable, be equipped with the waist round hole that runs through it along the fore-and-aft direction on the apron, it passes and corresponds to hang the axle the waist round hole, hang epaxial cover and be equipped with the sealed subassembly that shelters from that can follow its axial elastic movement, should seal and shelter from the subassembly and correspond the inboard laminating of apron.

10. A grain combine according to claim 3, wherein: the grain tank comprises two side tank bodies distributed left and right, any one of the side tank bodies can independently rotate in a direction away from or close to the other side tank body, the opposite side walls of the two side tank bodies are arranged in an open mode, the two side tank bodies can rotate to a closed state that the opposite side walls are mutually abutted and communicated, a grain inlet for communicating with a grain auger is formed in the upper portion of one of the side tank bodies, and the grain inlet can be overturned and overturned relative to one side wall of the side tank body where the grain inlet is formed.

11. A grain combine harvester according to any one of claims 3 to 10, wherein: the chopper can be arranged on a frame body matched with the rear end of the walking system in a left-right sliding mode, and can be fixed to the frame body through a fastener.

12. A grain combine harvester according to any one of claims 1 to 10, wherein: cereal combine has the oil tank, the oil tank includes the main oil tank, the main oil tank sets up arbitrary one side about traveling system to through the rotatable assembly of upset installation component arbitrary one side upper portion about the traveling system, and can overturn under the exogenic action about to support in the upper portion or the outside of traveling system one side.

13. A grain combine according to claim 12, wherein: the rice transplanter also comprises an auxiliary oil tank, wherein the auxiliary oil tank is arranged at the rear side of the chassis of the rice transplanter, the horizontal height of the bottom wall of the oil tank is lower than that of the bottom wall of the main oil tank, and the bottoms of the auxiliary oil tank and the main oil tank are communicated with each other through an oil pipe.

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