A multifunctional grain combine harvester

Abstract

The present invention belongs to the technical field of harvesters, and discloses a multifunctional grain combine harvester, comprising a walking part, which is mounted on the lower end of a base plate through a connecting frame, a threshing chamber is fixedly mounted on the base plate, a conveying pipe is connected to the threshing chamber, the conveying pipe is through-connected with the inside of the threshing chamber, a harvesting part is fixedly connected to the other end of the conveying pipe, and the harvesting part comprises a harvesting bucket, which is fixedly connected to the conveying pipe, an end of the harvesting bucket away from the conveying pipe is open, and a through hole groove is provided at the harvesting bucket near the conveying pipe; the present invention cooperates with a lodging cone, a support plate, a first sliding rod, a first slider, a first spring, a second slider, a rotating rod, and a pushing bar, and finally adjusts the spacing between the first sliders by rotating the rotating rod, and the first slider drives the corresponding lodging cone, so that the lodging cone can be adjusted in spacing according to the density of grains.

Description

Technical Field

[0001] The present invention belongs to the technical field of harvesters, and in particular relates to a multifunctional grain combine harvester. Background Art

[0002] A combine harvester is a machine that can simultaneously complete the harvesting, threshing, separation and cleaning of grains and finally obtain clean grains; corn is an important cereal crop in my country, and its total output ranks second only to rice. It is widely used in feed, industrial raw materials and medicine. However, since corn plants are relatively tall and slender, they will fall over in large areas when encountering strong winds. The positions of the lodging devices in existing corn harvesters are fixed, and there is a problem that the spacing between the lodging devices cannot be adjusted according to the different planting densities of the plants. Summary of the invention

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a multifunctional grain combine harvester, which solves the problem in the prior art that the spacing between each lodging device cannot be adjusted according to the different planting densities of grain plants.

[0004] The purpose of this disclosure can be achieved through the following technical solutions:

[0005] A multifunctional grain combine harvester comprises a walking part, which is mounted on the lower end of a base plate through a connecting frame, a threshing chamber is fixedly mounted on the base plate, a conveying pipeline is connected to the threshing chamber, the conveying pipeline is connected to the inside of the threshing chamber, and a harvesting part is fixedly connected to the other end of the conveying pipeline.

[0006] The harvesting part comprises a harvesting bucket, which is fixedly connected to the conveying pipe, the end of the harvesting bucket away from the conveying pipe is open, and a through-hole groove is provided at the harvesting bucket near the conveying pipe, and the peripheral side wall of the conveying pipe is fixedly connected to the peripheral side wall of the through-hole groove, and the end of the harvesting bucket away from the conveying pipe is fixedly connected with a knife bar, and the knife bar is placed perpendicularly to the moving direction of the walking part, and a plurality of inverted cones are arranged on the knife bar, and the plurality of inverted cones are evenly distributed along the axis direction of the knife bar, and the inverted cones are composed of two shell bars, and the inverted cones are in a pointed structure, and one shell bar of the inverted cone is placed parallel to the bottom plate and perpendicular to the knife bar, and the other shell bar of the inverted cone is placed obliquely upward from the side away from the threshing chamber to the threshing chamber, and the outermost inverted cones at both ends of the plurality of inverted cones are respectively fixedly connected to the bucket walls on both sides of the harvesting bucket, and the lower end surfaces of the lower end shell bars of the outermost inverted cones at both ends are fixedly connected to support plates, and a The cam is provided with a first spring which is mounted on the first slide bar and is connected to the slide block by the spring. The second spring is mounted on the second slide bar and is connected to the slide block by the spring.

[0007] A connecting block is fixedly connected to the lower end of the slide rail groove, and the connecting block is located near the middle position of the lower end surface of the slide rail shaft. A dual-axis rotating motor is fixedly installed on the connecting block. The output ends of the dual-axis rotating motors are provided with a first rotating shaft, and the first rotating shafts are coaxially placed with the rotating rod. A rotating bar is sleeved on the end of the first rotating shaft away from the dual-axis rotating motor, and a distance between the outermost inverted cones at both ends is smaller than the distance between the two rotating bars. A shift rod is fixedly connected between the rotating bars, and the shift rod is located at the end of the rotating bar away from the first rotating shaft, and the shift rod is located below the harvesting bucket.

[0008] Both ends of the rotating rod extending out of the slide rail groove are fixedly sleeved with a first gear placed coaxially, and the first rotating shaft is sleeved with a second gear placed coaxially, the second gear corresponds to the first gear one by one, and the first gear can be meshed with the second gear.

[0009] The rotating bar and the first rotating shaft are configured to be rotatingly connected, the rotating bar is fixedly connected with a third gear, the third gear is placed coaxially with the first rotating shaft, the third gear is sleeved on the first rotating shaft and is rotationally connected to the first rotating shaft, the third gear is located on the side of the first gear away from the dual-axis rotating motor, and the size of the third gear is equal to that of the second gear.

[0010] The circumferential wall of the first rotating shaft is provided with a coaxially placed slot, the second gear is slidably engaged with the slot, and the second gear can move along the slot. The first rotating shaft is fixedly sleeved with a coaxially placed turntable, the turntable is located on the side of the second gear close to the dual-axis rotating motor, and a coaxially placed telescopic cylinder is fixed on the turntable, the telescopic rod of the telescopic cylinder is fixedly connected to the second gear, and when the telescopic rod of the telescopic cylinder is in a retracted state, the second gear is meshed with the first gear.

[0011] A first connecting plate is fixedly installed on the side walls of the harvesting bucket close to the first gear, a second sliding bar placed vertically downward is fixedly connected to the lower end surface of the first connecting plate, a second connecting plate slidably connected is sleeved on the second sliding bar, a spur rack placed vertically downward is fixedly connected to the second connecting plate, the spur rack corresponds to the third gear one by one, the spur racks are located on the side of the third gear close to the conveying pipeline, the third gear is meshed with the spur rack, when the telescopic rod of the telescopic cylinder is in an extended state, the second gear is disengaged from the first gear, and at the same time the second gear is meshed with the spur rack.

[0012] The second gears are all configured as toothless gears with fan-shaped tooth surfaces. The second slide bars are all sleeved with coaxially arranged second springs. One end of the second springs is fixed to the first connecting plate, and the other end of the second springs is fixed to the second connecting plate.

[0013] A conveyor belt mechanism is installed in the conveying duct, and a roller is provided on the side of the harvesting bucket close to the conveying pipe. The roller is placed coaxially with the first rotating shaft, and both ends of the roller are rotatably connected to the side wall of the harvesting bucket. A plurality of push rods are provided at positions corresponding to the through-hole grooves on the circumferential wall of the roller, and coaxially placed spiral blades are provided at positions on the circumferential wall of the roller away from the through-hole grooves. A support is fixedly connected to the outer wall of the harvesting bucket, and a rotating motor is fixedly installed on the support, and a second rotating shaft is provided at the output end of the rotating motor, and the second rotating shaft is placed coaxially with the roller, passes through the side wall of the harvesting bucket and is rotatably connected to the side wall of the harvesting bucket, and the second rotating shaft is fixed to one end of the roller.

[0014] The spiral directions of the spiral blades on the rotating roller located on both sides of the through hole groove are opposite.

[0015] A pair of symmetrically placed support frames are provided on the harvesting bucket, and the two support frames are respectively fixedly connected to the upper ends of the two side walls of the harvesting bucket, and a rotatably connected straw-pulling assembly is provided between the support frames. The straw-pulling assembly is located directly above the lodging cone, and the straw-pulling assembly includes a third rotating shaft, which is coaxially placed with the first rotating shaft, and both ends of the third rotating shaft pass through the support frames and are rotatably connected to the support frames, and a straw-pulling roller is fixedly sleeved on the third rotating shaft.

[0016] A first transmission gear coaxially arranged is fixedly sleeved on the second rotating shaft, a second transmission gear coaxially arranged is fixedly sleeved on one end of the third rotating shaft close to the rotating motor, and an annular toothed belt in meshing connection is sleeved between the first transmission gear and the second transmission gear.

[0017] Beneficial effects of the present disclosure:

[0018] 1. The present invention cooperates with the lodging cone, the support plate, the first sliding rod, the first slider, the first spring, the second slider, the rotating rod, and the pushing bar, and finally adjusts the spacing between the first sliders by rotating the rotating rod. The first slider drives the corresponding lodging cone, so that the lodging cone can adjust the spacing according to the density of the grains.

[0019] 2. The present invention can harvest the grains with a large lodging degree by means of a double-axis rotating motor, a first rotating shaft, a rotating bar and a shifting rod;

[0020] At the same time, through the cooperation of the first gear, the second gear, the third gear, the spur rack, the second slide bar, the first connecting plate, the second connecting plate, the second spring, the turntable, the telescopic cylinder, the first rotating shaft, the clamping slot, and the rotating rod, the automatic control of the rotating rod rotation can be realized, and the automatic adjustment of the pitch of the inverted cone can be performed. At the same time, the rotation of the rotating rod and the rotation of the rotating bar can be selectively controlled to avoid mutual interference between the two;

[0021] Furthermore, by cooperating with the arrangement of the second gear being a toothless gear with a sector-shaped tooth surface, it is possible to avoid the collision between the lever and the inverted cone caused by excessive rotation of the rotating bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the conveying pipeline and the harvesting part of the present invention;

[0025] Figure 3 This invention is attached Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0026] Figure 4 It is a schematic diagram of the harvesting part of the present invention;

[0027] Figure 5 It is a schematic diagram of the internal structure of the harvesting bucket of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the blade and the inverted cone of the present invention;

[0029] Figure 7 It is a structural schematic diagram of the slide rail groove of the present invention. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0031] like Figures 1 to 7 As shown, a multifunctional grain combine harvester comprises a walking part 1, which is mounted on the lower end of a bottom plate 2 through a connecting frame, a threshing chamber 3 is fixedly mounted on the bottom plate 2, a conveying pipe 4 is connected to the threshing chamber 3, the conveying pipe 4 is connected to the inside of the threshing chamber 3, and a harvesting part is fixedly connected to the other end of the conveying pipe 4;

[0032] The harvesting part includes a harvesting bucket 5, which is fixedly connected to the conveying pipe 4. The end of the harvesting bucket 5 away from the conveying pipe 4 is open. A through hole groove 51 is provided near the conveying pipe 4. The peripheral side wall of the conveying pipe 4 is fixedly connected to the peripheral side wall of the through hole groove 51. The end of the harvesting bucket 5 away from the conveying pipe 4 is fixedly connected to a knife bar 6. The knife bar 6 is placed vertically to the moving direction of the walking part 1. The knife bar 6 is provided with a plurality of inverted cones 7. The plurality of inverted cones 7 are evenly distributed along the axis direction of the knife bar 6. The inverted cones 7 are composed of The lodging cone 7 is composed of two shell strips, and the lodging cone 7 is a pointed structure. One shell strip of the lodging cone 7 is placed parallel to the bottom plate 2 and vertically to the knife strip 6. The other shell strip of the lodging cone 7 is placed from the side away from the threshing chamber 3 to the threshing chamber 3 and is inclined upward. The outermost lodging cones 7 at both ends of the multiple lodging cones 7 are respectively fixedly connected to the bucket walls on both sides of the harvesting bucket 5. The lower end surfaces of the lower end shell strips of the outermost lodging cones 7 at both ends are fixedly connected to the support plates 8. The first slide bar 9 is fixedly connected between the two support plates 8. The first slide bar 9 is coaxially placed with the blade 6, the lower end surface of the inner lodging cone 7 is fixedly connected with a first slider 10, the first slide bar 9 passes through the first slider 10 and is slidably connected with the first slider 10, a first spring 11 is fixedly connected between two adjacent first sliders 10, the first springs 11 are sleeved on the first slide bar 9, the first spring 11 is always in a compressed state, the lower end surface of the harvesting bucket 5 near the blade 6 end is fixedly connected with a slide rail groove 12, the slide rail groove 12 is coaxially placed with the blade 6, and a coaxial The rotating rod 13 is placed in the line, and both ends of the rotating rod 13 pass through the groove wall of the slide rail groove 12 and are rotatably connected to the slide rail groove 12. The side walls at both ends of the rotating rod 13 are provided with spiral teeth, and the spiral directions of the two spiral teeth are opposite. A pair of second sliding blocks 14 connected in a sliding manner are provided in the slide rail groove 12. The second sliding blocks 14 correspond to the spiral teeth one by one. The second sliding blocks 14 are sleeved on the rotating rod 13 and are connected to the spiral teeth. The second sliding blocks 14 are fixedly connected with push bars, and the push bars are fixedly connected to the first sliding blocks 10 near the support plate 8 side;

[0033] The rotating rod 13 is rotated, and the rotating rod 13 drives the spiral teeth, and the two spiral teeth drive the second slider 14, so that the two second sliders 14 move synchronously to approach or move away from each other, and the second slider 14 drives the pushing bar, and the pushing bar drives the two outermost first sliders 10 to move synchronously, and the movement of the outermost first sliders 10 on both sides is closer or farther away from each other for position adjustment. At the same time, the first springs 11 in the middle are synchronously telescopically adjusted, and the first sliders 10 except the two outermost first sliders 10 are telescopically adjusted with the expansion and contraction of the first springs 11, and the corresponding positions are adjusted under the elastic force of the first springs 11; when the second slider 14 stops moving, the first sliders 10 and the first springs 11 are stationary and maintain a balanced state. At this time, the compression amounts of the first springs 11 are relative, and the distances between the adjacent two first sliders 10 are equal, that is, by rotating the rotating rod 13, the spacing between the first sliders 10 is finally adjusted, and the first sliders 10 drive the corresponding lodging cones 7, so that the lodging cones 7 can be adjusted according to the density of grains.

[0034] In order to adapt to the harvesting of cereals with a large degree of lodging, a connecting block is fixedly connected to the lower end of the slide rail groove 12, and the connecting block is located near the middle position of the lower end surface of the slide rail shaft. A dual-axis rotating motor 15 is fixedly installed on the connecting block. The output end of the dual-axis rotating motor 15 is provided with a first rotating shaft 16, and the first rotating shaft 16 is coaxially placed with the rotating rod 13. The end of the first rotating shaft 16 away from the dual-axis rotating motor 15 is sleeved with a rotating bar 17, and the distance between the outermost lodging cones 7 at both ends is smaller than the distance between the two rotating bars 17. A shift rod 171 is fixedly connected between the rotating bars 17, and the shift rod 171 is located at the rotating bar 17 away from the first rotating shaft At one end of 16, the lever 171 is located below the harvesting bucket 5; when there is a large degree of lodging of grains, the double-axis rotating motor 15 is turned on, and the output end of the double-axis rotating motor 15 drives the first rotating shaft 16, the first rotating shaft 16 drives the rotating bar 17, and the rotating bar 17 drives the lever 171, so that the lever 171 rotates upward around the central axis of the first rotating shaft 16 from below the harvesting bucket 5. During the rotation of the lever 171, the grains with a large degree of lodging are pushed, so that the grains with a large degree of lodging are continuously stood up, so that the lodging cone 7 and the knife bar 6 can reach the degree of contact with their grain stems, which is convenient for adapting to the purpose of harvesting grains with a large degree of lodging.

[0035] In order to facilitate the automatic control of the rotation of the rotating rod 13, both ends of the rotating rod 13 extending out of the slide rail groove 12 are fixedly sleeved with a first gear 18 placed coaxially, and the first rotating shaft 16 is sleeved with a second gear 19 placed coaxially, the second gear 19 corresponds to the first gear 18 one by one, and the first gear 18 can be meshed and connected with the second gear 19; when the dual-axis rotating motor 15 is turned on to drive the first rotating shaft 16 to rotate, the first rotating shaft 16 drives the second gear 19, the second gear 19 drives the first gear 18, and the first gear 18 drives the rotating rod 13, so as to realize the automatic control of the rotation of the rotating rod 13 and facilitate the automatic adjustment of the spacing between the inverted cones 7.

[0036] In order to selectively control the rotation of the rotating rod 13 and the rotating bar 17 to avoid mutual interference between the two, the rotating bar 17 and the first rotating shaft 16 are both set to be rotatably connected, and the rotating bar 17 is fixedly connected with a third gear 20, and the third gear 20 is coaxially placed with the first rotating shaft 16. The third gear 20 is sleeved on the first rotating shaft 16 and is rotatably connected with the first rotating shaft 16. The third gear 20 is located on the side of the first gear 18 away from the dual-axis rotating motor 15, and the size of the third gear 20 is equal to that of the second gear 19;

[0037] A coaxially arranged slot 161 is provided on the peripheral wall of the first rotating shaft 16, and the second gear 19 is slidably engaged with the slot 161. The second gear 19 can move along the slot 161. A coaxially arranged turntable 21 is fixedly sleeved on the first rotating shaft 16. The turntable 21 is located on the side of the second gear 19 close to the dual-axis rotating motor 15. A coaxially arranged telescopic cylinder 211 is fixed on the turntable 21. The telescopic rod of the telescopic cylinder 211 is fixedly connected to the second gear 19. When the telescopic rod of the telescopic cylinder 211 is in a retracted state, the second gear 19 is meshedly connected with the first gear 18.

[0038] A first connecting plate 22 is fixedly installed on both side walls of the harvesting bucket 5 close to the first gear 18, and a second sliding rod 23 placed vertically downward is fixedly connected to the lower end surface of the first connecting plate 22, and a second connecting plate 24 is slidably connected to the second sliding rod 23, and a spur rack 25 placed vertically downward is fixedly connected to the second connecting plate 24, and the spur rack 25 corresponds to the third gear 20 one by one, and the spur rack 25 is located on the side of the third gear 20 close to the conveying pipeline 4, and the third gear 20 is meshed with the spur rack 25. When the telescopic rod of the telescopic cylinder 211 is in an extended state, the second gear 19 is disengaged from the first gear 18, and the second gear 19 is meshed with the spur rack 25;

[0039] When only the rotating rod 13 needs to be rotated to adjust the spacing of the inverted cones 7, the telescopic cylinder 211 is telescopic and in a retracted state, and then the dual-axis rotating motor 15 is turned on to drive the first rotating shaft 16, the rotating disk 21, the telescopic cylinder 211, the second gear 19, and the first gear 18. The first gear 18 drives the rotating rod 13 to rotate. At this time, the third gear 20 and the rotating bar 17 do not rotate with the first rotating shaft 16; when only the rotating bar 17 needs to be controlled to rotate and drive the lever 171 to support the crops, the telescopic cylinder 211 is turned on, and the telescopic rod of the telescopic cylinder 211 is extended to push the second gear 19, and the second gear 19 moves along the slot 161, so that the second gear 19 is separated from the first gear 18, and at the same time, the third gear 20 and the rotating bar 17 are driven to rotate. The second gear 19 is meshed with the spur rack 25, and then the double-axis rotating motor 15 is turned on. The output end of the double-axis rotating motor 15 drives the first rotating shaft 16, which in turn drives the turntable 21, the telescopic cylinder 211, the second gear 19, and the spur rack 25. The spur rack 25 moves downward to drive the third gear 20 and the rotating bar 17. The rotating bar 17 drives the lever 171 to flip upward. At this time, the first gear 18 is separated from the second gear 19, and the rotating bar 17 is driven to rotate without causing the rotation of the rotating rod 13, thereby affecting the change in the spacing of the inverted cone 7. Through the above operation, the rotation of the rotating rod 13 and the rotation of the rotating bar 17 are selectively controlled to avoid mutual interference between the two.

[0040] In order to prevent the rotating bar 17 from over-rotating and causing the lever 171 to collide with the inverted cone 7, the second gear 19 is set as a toothless gear with a fan-shaped tooth surface. The second slide bar 23 is sleeved with a coaxially arranged second spring 26, one end of the second spring 26 is fixed to the first connecting plate 22, and the other end of the second spring 26 is fixed to the second connecting plate 24. When the telescopic cylinder 211 is in the extended state, the second gear 19 rotates to drive the spur rack 25 to move downward, and the spur rack 25 The second gear 19 drives the third gear 20, the rotating bar 17, and the shifting rod 171. At the same time, the second gear 19 drives the spur rack 25 to move downward, and the second connecting plate 24 drives the second spring 26 to extend. Since the second gear 19 is configured as a toothless gear, when the second gear 19 rotates to disengage from the spur rack 25, the second spring 26 drives the second connecting plate 24 and the spur rack 25 to move upward for reset under the elastic force of the second spring 26, thereby preventing the spur rack 25 from moving downward excessively, thereby preventing the rotating bar 17 and the shifting rod 171 from rotating excessively and colliding with the inverted cone 7.

[0041] The harvested and cut grains fall into the harvesting bucket 5. In order to facilitate the grains in the harvesting bucket 5 to enter the conveying pipe 4 and be introduced into the threshing chamber 3, a conveyor belt mechanism is installed in the conveying duct. A roller 27 is provided on the side of the harvesting bucket 5 close to the conveying pipe 4. The roller 27 is coaxially placed with the first rotating shaft 16. Both ends of the roller 27 are rotatably connected to the side wall of the harvesting bucket 5. A plurality of push rods 271 are provided at positions corresponding to the through-hole grooves 51 on the circumferential wall of the roller 27. Coaxially placed spiral blades 272 are provided on the circumferential wall of the roller 27 away from the through-hole grooves 51. A support is fixedly connected to the outer wall of the harvesting bucket 5, and a rotating electric Machine 28, a second rotating shaft is provided at the output end of the rotating motor 28, the second rotating shaft and the roller 27 are placed coaxially, the second rotating shaft passes through the side wall of the harvesting bucket 5 and is rotatably connected to the side wall of the harvesting bucket 5, and the second rotating shaft is fixed to one end of the roller 27; turn on the rotating motor 28, the output end of the rotating motor 28 drives the second rotating shaft, the roller 27, and the push rod 271 to rotate, and the grains entering the harvesting bucket 5 after the harvesting is completed are pushed into the conveying pipe 4, and at the same time, the setting of the spiral blade 272 can make the grains in the harvesting bucket 5 away from the position of the through hole groove 51 move to the through hole groove 51, so as to facilitate the grains in the harvesting bucket 5 to enter the conveying pipe 4 and be introduced into the threshing chamber 3.

[0042] In order to facilitate the harvesting of grains on both sides of the through hole groove 51 in the bucket 5, the spiral directions of the spiral blades 272 on both sides of the through hole groove 51 on the roller 27 are opposite; when the spiral blades 272 rotate, the grains at both ends of the roller 27 can move to the through hole groove 51 and gather.

[0043] In order to facilitate the dumping of grains into the harvesting bucket 5 during harvesting, a pair of symmetrically placed support frames 29 are provided on the harvesting bucket 5, and the two support frames 29 are respectively fixedly connected to the upper ends of the two side walls of the harvesting bucket 5, and a rotatably connected grain-pulling assembly is provided between the support frames 29. The grain-pulling assembly is located directly above the lodging cone 7, and the grain-pulling assembly includes a third rotating shaft 30, which is coaxially arranged with the first rotating shaft 16. Both ends of the third rotating shaft 30 pass through the support frames 29 and are rotatably connected to the support frames 29, and a grain-pulling roller 31 is fixedly sleeved on the third rotating shaft 30; by rotating the third rotating shaft 30, the third rotating shaft 30 drives the grain-pulling roller 31, so that the grain-pulling roller 31 pushes the grains to dump into the harvesting bucket 5 during harvesting.

[0044] In order to facilitate the automatic control of the rotation of the third rotating shaft 30 and synchronize the work with the roller 27, a first transmission gear 32 is fixedly sleeved on the second rotating shaft and placed coaxially, and a second transmission gear 33 is fixedly sleeved on the end of the third rotating shaft 30 close to the rotating motor 28 and placed coaxially, and an annular toothed belt 34 with meshing connection is sleeved between the first transmission gear 32 and the second transmission gear 33; the rotating motor 28 is turned on to drive the first rotating shaft 16, and the first rotating shaft 16 drives the roller 27, the first transmission gear 32, the annular toothed belt 34, the second transmission gear 33, and the third rotating shaft 30 in turn, so as to realize the automatic control of the rotation of the third rotating shaft 30 and synchronize the work with the roller 27.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] The above shows and describes the basic principles, main features and advantages of the present disclosure. Those skilled in the art should understand that the present disclosure is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present disclosure. Without departing from the spirit and scope of the present disclosure, the present disclosure may have various changes and improvements, and these changes and improvements fall within the scope of the present disclosure to be protected.

Claims

1. A multifunctional grain combine harvester, comprising a walking part (1), characterized in that: The walking part (1) is mounted on the lower end of the bottom plate (2) via a connecting frame, a threshing chamber (3) is fixedly mounted on the bottom plate (2), a conveying pipe (4) is connected to the threshing chamber (3), the conveying pipe (4) is connected to the inside of the threshing chamber (3), and the other end of the conveying pipe (4) is fixedly connected to a harvesting part; The harvesting part comprises a harvesting bucket (5), the harvesting bucket (5) is fixedly connected to the conveying pipe (4), the end of the harvesting bucket (5) away from the conveying pipe (4) is open, a through hole groove (51) is provided near the conveying pipe (4), the peripheral side wall of the conveying pipe (4) is fixedly connected to the peripheral side wall of the through hole groove (51), the end of the harvesting bucket (5) away from the conveying pipe (4) is fixedly connected to a knife bar (6), the knife bar (6) is placed perpendicular to the moving direction of the walking part (1), a plurality of inverted cones (7) are provided on the knife bar (6), and the plurality of inverted cones (7) are evenly distributed along the axis direction of the knife bar (6). The lodging cone (7) is composed of two shell strips, and the lodging cone (7) is in a pointed structure. One shell strip of the lodging cone (7) is placed parallel to the bottom plate (2) and in a vertical position with the blade strip (6). The other shell strip of the lodging cone (7) is placed from the side away from the threshing chamber (3) to the side close to the threshing chamber (3) in an inclined upward position. The outermost lodging cones (7) at both ends of the plurality of lodging cones (7) are respectively fixedly connected to the bucket walls on both sides of the harvesting bucket (5). The lower end surfaces of the lower end shell strips of the outermost lodging cones (7) at both ends are fixedly connected to the support plates (8), and the first sliding rod (9) is fixedly connected between the two support plates (8). The first slide bar (9) is coaxially arranged with the blade (6), the lower end surface of the inner inverted cone (7) is fixedly connected with a first slide block (10), the first slide bar (9) passes through the first slide block (10) and is slidably connected with the first slide block (10), a first spring (11) is fixedly connected between two adjacent first slide blocks (10), the first springs (11) are sleeved on the first slide bar (9), the first springs (11) are always in a compressed state, the lower end surface of the harvesting bucket (5) near the blade (6) end is fixedly connected with a slide rail groove (12), the slide rail groove (12) is coaxially arranged with the blade (6), and the slide rail groove (11) is fixedly connected with the first slide block (10). 2) A coaxially arranged rotating rod (13) is provided inside the rotating rod (13), both ends of the rotating rod (13) pass through the groove wall of the slide rail groove (12) and are rotatably connected to the slide rail groove (12), spiral teeth are provided on the peripheral side walls of both ends of the rotating rod (13), and the spiral directions of the two spiral teeth are opposite, and a pair of second sliding blocks (14) in sliding connection are provided in the slide rail groove (12), the second sliding blocks (14) correspond to the spiral teeth one by one, the second sliding blocks (14) are sleeved on the rotating rod (13) and are meshed with the spiral teeth, and the second sliding blocks (14) are fixedly connected to a push bar, and the push bar is fixedly connected to the first sliding block (10) close to the support plate (8) side.

2. A multifunctional grain combine harvester according to claim 1, characterized in that: A connecting block is fixedly connected to the lower end of the slide rail groove (12), and the connecting block is located near the middle position of the lower end surface of the slide rail shaft. A double-axis rotating motor (15) is fixedly installed on the connecting block. The output end of the double-axis rotating motor (15) is provided with a first rotating shaft (16), and the first rotating shaft (16) is coaxially arranged with the rotating rod (13). The end of the first rotating shaft (16) away from the double-axis rotating motor (15) is sleeved with a rotating bar (17), and the distance between the outermost inverted cones (7) at both ends is smaller than the distance between the two rotating bars (17). A shifting rod (171) is fixedly connected between the rotating bars (17), and the shifting rod (171) is located at the end of the rotating bar (17) away from the first rotating shaft (16). The shifting rod (171) is located below the harvesting bucket (5).

3. A multifunctional grain combine harvester according to claim 2, characterized in that: Both ends of the rotating rod (13) extending out of the slide rail groove (12) are fixedly sleeved with a first gear (18) placed coaxially, and the first rotating shaft (16) is sleeved with a second gear (19) placed coaxially, the second gear (19) corresponds to the first gear (18) one by one, and the first gear (18) can be meshedly connected with the second gear (19).

4. The multifunctional grain combine harvester according to claim 3, characterized in that: The rotating bar (17) and the first rotating shaft (16) are both arranged to be rotatably connected, the rotating bar (17) is fixedly connected with a third gear (20), the third gear (20) is coaxially arranged with the first rotating shaft (16), the third gear (20) is sleeved on the first rotating shaft (16) and is rotatably connected with the first rotating shaft (16), the third gear (20) is located on a side of the first gear (18) away from the dual-axis rotating motor (15), and the size of the third gear (20) is equal to that of the second gear (19); A coaxially arranged slot (161) is provided on the peripheral wall of the first rotating shaft (16), the second gear (19) is slidably engaged with the slot (161), and the second gear (19) can move along the slot (161); a coaxially arranged turntable (21) is fixedly sleeved on the first rotating shaft (16), the turntable (21) is located on a side of the second gear (19) close to the dual-axis rotating motor (15), a coaxially arranged telescopic cylinder (211) is fixed on the turntable (21), the telescopic rod of the telescopic cylinder (211) is fixedly connected to the second gear (19), and when the telescopic rod of the telescopic cylinder (211) is in a retracted state, the second gear (19) is meshedly connected with the first gear (18); A first connecting plate (22) is fixedly mounted on both side walls of the harvesting bucket (5) near the first gear (18), a second sliding rod (23) placed vertically downward is fixedly connected to the lower end surface of the first connecting plate (22), a second connecting plate (24) slidably connected is sleeved on the second sliding rod (23), a spur rack (25) placed vertically downward is fixedly connected to the second connecting plate (24), the spur rack (25) and the third gear (20) correspond one to one, the spur rack (25) are located on the side of the third gear (20) near the conveying pipe (4), the third gear (20) and the spur rack (25) are meshedly connected, when the telescopic rod of the telescopic cylinder (211) is in an extended state, the second gear (19) and the first gear (18) are disengaged from the meshing connection, and at the same time, the second gear (19) and the spur rack (25) are meshedly connected.

5. The multifunctional grain combine harvester according to claim 4, characterized in that: The second gears (19) are all configured as toothless gears with a sector-shaped tooth surface. The second slide bars (23) are all sleeved with coaxially arranged second springs (26). One end of the second springs (26) is fixed to the first connecting plate (22), and the other end of the second springs (26) is fixed to the second connecting plate (24).

6. The multifunctional grain combine harvester according to claim 1, characterized in that: A conveyor belt mechanism is installed in the conveying duct. A roller (27) is provided on one side of the harvesting bucket (5) close to the conveying pipe (4). The roller (27) is coaxially arranged with the first rotating shaft (16). Both ends of the roller (27) are rotatably connected to the side wall of the harvesting bucket (5). A plurality of push rods (271) are provided at positions corresponding to the through-hole grooves (51) on the peripheral wall of the roller (27). Coaxially arranged spiral blades (272) are provided at positions away from the through-hole grooves (51) on the peripheral wall of the roller (27). A support is fixedly connected to the outer wall of the harvesting bucket (5). A rotating motor (28) is fixedly installed on the support. A second rotating shaft is provided at the output end of the rotating motor (28). The second rotating shaft is coaxially arranged with the roller (27). The second rotating shaft passes through the side wall of the harvesting bucket (5) and is rotatably connected to the side wall of the harvesting bucket (5). The second rotating shaft is fixed to one end of the roller (27).

7. The multifunctional grain combine harvester according to claim 6, characterized in that: The spiral directions of the spiral blades (272) on the rotating roller (27) located on both sides of the through hole groove (51) are opposite.

8. The multifunctional grain combine harvester according to claim 1, characterized in that: A pair of symmetrically placed support frames (29) are provided on the harvesting bucket (5), the two support frames (29) are respectively fixedly connected to the upper ends of the two side walls of the harvesting bucket (5), a reed-pulling assembly rotatably connected is provided between the support frames (29), the reed-pulling assembly is located directly above the lodging cone (7), the reed-pulling assembly comprises a third rotating shaft (30), the third rotating shaft (30) is coaxially placed with the first rotating shaft (16), both ends of the third rotating shaft (30) pass through the support frames (29) and are rotatably connected to the support frames (29), and a reed-pulling roller (31) is fixedly sleeved on the third rotating shaft (30).

9. The multifunctional grain combine harvester according to claim 6, characterized in that: A first transmission gear (32) is fixedly sleeved on the second rotating shaft and arranged coaxially, and a second transmission gear (33) is fixedly sleeved on one end of the third rotating shaft (30) close to the rotating motor (28) and arranged coaxially, and an annular toothed belt (34) is sleeved between the first transmission gear (32) and the second transmission gear (33) and arranged in a toothed connection.

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