Small-sized four-wheel-drive-wheel harvester

Abstract

The invention relates to a small four-wheel-drive-wheel harvester which solves the technical problems that in the using process of an existing crawler harvester, crops are incompletely harvested, the requirement for frequent turning around of a small plot is difficult to meet, the using safety is low, the forward resistance is large, and the ratooning rice yield is reduced. Comprising a header, a reel and an auger which are arranged on the header, a supporting mechanism, a threshing and cleaning mechanism which is movably arranged on the supporting mechanism and is connected with the header, and a first driving mechanism which is arranged between the supporting mechanism and the header. The device is small in size, meets the requirement for frequent turning around of small plots, and improves the safety when being used in hilly and mountainous areas; crops which are different in height and bent can be harvested, the remaining amount of crops which are not harvested in a field is reduced, and waste is reduced; the pressing plates on the rollers are distributed at intervals, the contact area of the whole rollers and the ground is reduced, the advancing resistance of the harvester is reduced, and when the roller is applied to ratooning rice fields, the number of pressed rice piles in the fields is reduced, and the ratooning rice yield is increased.

Description

Technical Field

[0001] This invention belongs to the technical field of crop harvesting equipment, specifically relating to a small four-wheel drive harvester. Background Technology

[0002] Harvesting traditional crops such as rice and wheat relies on manual labor. To prevent crops from sprouting and rotting due to moisture during storage after harvesting, crops are usually harvested on sunny days. However, hot weather increases the labor intensity and fatigue of workers, resulting in low efficiency. Existing technology has developed tracked harvesters to harvest mature crops, freeing up manpower and improving the efficiency of crop harvesting.

[0003] However, existing tracked harvesters have the following technical problems: Crops in the field grow at uneven heights, and some crops bend due to wind and rain. Some existing tracked harvesters have a fixed harvesting height, which prevents the harvesting of short or bent crops, resulting in incomplete harvesting and waste. Tracked harvesters are also large, making it difficult to meet the frequent turning needs of small plots in hilly and mountainous areas. Their large size also increases the risk of accidents when climbing or descending slopes. Furthermore, the tracks on the harvester have a large contact area with the ground, increasing the harvester's forward resistance. This is especially problematic when harvesting the first crop of rice in ratooning paddy fields, where the tracks can crush many rice stubble, reducing the yield of ratooning rice. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a small four-wheel drive wheeled harvester to solve the technical problems of incomplete crop harvesting, difficulty in meeting the frequent turning needs of small plots, low safety, high forward resistance and reduced yield of ratooning rice in the use of existing tracked harvesters.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A small four-wheeled harvester includes a header, a reel and an auger mounted on the header, a support mechanism, a threshing and cleaning mechanism movably mounted on the support mechanism and connected to the header, and a first drive mechanism located between the support mechanism and the header for driving the header and the threshing and cleaning mechanism to rotate on the support mechanism. The threshing and cleaning mechanism includes a threshing box movably mounted on the support mechanism and connected to the header, a threshing roller movably mounted inside the threshing box, a lifting mechanism extending from the bottom of the threshing box, a ventilation mechanism located between the lifting mechanism and the threshing box, and a second drive mechanism located on the threshing box and the header and connected to the reel, the auger and the large threshing roller.

[0006] Furthermore, the support mechanism includes a support frame and four rollers distributed at the four corners of the support frame and supported on the ground; the threshing box is movably mounted on the support frame; the rollers include two support rings movably mounted on the support frame and several pressure plates circumferentially distributed between the two support rings.

[0007] Furthermore, the support frame has two mounting through holes A, and a movable rod is fixedly inserted into the two mounting through holes A. Each end of the movable rod is provided with a limiting block for limiting and fixing the movable rod between the two mounting through holes A. The bottom of the threshing box is provided with two mounting ears that are movably inserted into the movable rod.

[0008] Furthermore, the first driving mechanism includes a hydraulic cylinder mounted on a support frame and connected to the cutting table; a groove is provided on the cutting table, a ball is slidably mounted in the groove, two outrigger plates are mounted on the ball, a connecting rod is provided between the two outrigger plates, and the telescopic shaft of the hydraulic cylinder is movably mounted on the connecting rod.

[0009] Furthermore, the lifting mechanism includes a conveying pipe disposed on the threshing box and extending from the bottom of the threshing box, and a pneumatic conveying pump disposed on the top of the conveying pipe and extending from the conveying pipe.

[0010] Furthermore, the ventilation system includes a fan located on top of the pneumatic conveying pump, and a ventilation pipe extending from the fan and into the threshing box.

[0011] Furthermore, a load-bearing frame is provided on the outer wall of the threshing box, located below the pneumatic conveying pump.

[0012] Furthermore, an installation box is provided outside the threshing box, and the second drive mechanism includes a drive motor located inside the installation box and connected to the reel, auger and threshing roller.

[0013] Furthermore, a stalk outlet communicating with the interior of the threshing box is provided on the side wall of the threshing box.

[0014] Furthermore, the threshing roller includes a first shaft movably mounted on the threshing box, a cylinder body fixedly mounted on the outer wall of the first shaft, and several circumferentially distributed clappers on the outer wall of the cylinder body.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention features a simple structure that ensures basic crop harvesting functions while maintaining a small size to meet the frequent turning needs of small plots. It also improves safety when used in hilly and mountainous areas. During use, the header and threshing / cleaning mechanism can rotate in the pitch direction, allowing for the harvesting of crops at different heights and even those that are bent within the cultivated field. This reduces the amount of unharvested crops left in the cultivated field, minimizing crop waste. The rollers have spaced pressure plates that alternately press against the ground as the machine moves forward, reducing the overall contact area between the rollers and the ground, lowering the harvester's forward resistance. Furthermore, when applied to ratooning rice paddies, this reduces the number of rice stubble that are crushed, increasing the yield of ratooning rice. Attached Figure Description

[0016] Figure 1 This is a schematic diagram showing the cutter and threshing box after cross-section according to the present invention.

[0017] Figure 2 This is a schematic diagram of the supporting structure.

[0018] Figure 3 A cross-sectional view of a sphere sliding within a groove.

[0019] Figure 4 This is the main view of the present invention.

[0020] Figure 5 This is a rear view of the present invention.

[0021] Figure 6 This is a schematic diagram showing the drive motor located inside the mounting box.

[0022] Figure 7 A schematic diagram showing a first chain fitted between a first driving sprocket and a first driven sprocket, and a second chain fitted between a second driving sprocket and a second driven sprocket.

[0023] The names corresponding to the reference numerals in the attached figures are as follows: 1-Cutter, 2-Reel, 3-Auger, 4-Threshing Box, 5-Threshing Roller, 6-Support Frame, 7-Roller, 8-Support Ring, 9-Pressure Plate, 10-Mounting Through Hole A, 11-Mounting Ear, 12-Limit Block, 13-Moving Rod, 14-Pneumatic Conveying Pump, 15-Conveying Pipe, 16-Fan, 17-Ventilation Pipe, 18-Loading Shelf, 19-Hydraulic Cylinder, 20-Chordle, 21-Sphere, 22-Extended Plate, 23-Connecting Rod, 24-Mounting Box 25-Drive motor, 26-Stem outlet, 27-First shaft, 28-Cylinder, 29-Clapper, 30-Power assembly, 31-Shaft A, 32-First bearing, 33-Shaft B, 34-Second bearing, 35-Third bearing, 36-First drive sprocket, 37-Second drive sprocket, 38-First driven sprocket, 39-Second driven sprocket, 40-First chain, 41-Second chain, 50-Mounting rod, 51-Step pedal, 52-Handrail. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0025] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; of course, they can also refer to a mechanical connection or an electrical connection; furthermore, they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] Example 1, such as Figure 1-7As shown, the present invention provides a small four-wheeled harvester, including a header 1, a reel 2 and an auger 3 mounted on the header 1, a support mechanism, a threshing and cleaning mechanism movably mounted on the support mechanism and connected to the header 1, and a first drive mechanism located between the support mechanism and the header 1 for driving the header 1 and the threshing and cleaning mechanism to rotate on the support mechanism; the threshing and cleaning mechanism includes a threshing box 4 movably mounted on the support mechanism and connected to the header 1, a threshing roller 5 movably mounted inside the threshing box 4, a lifting mechanism extending from the bottom of the threshing box 4, a ventilation mechanism located between the lifting mechanism and the threshing box 4, and a second drive mechanism located on the threshing box 4 and the header 1 and connected to the reel 2, the auger 3 and the large threshing roller 5.

[0028] This invention features a simple structure that ensures basic crop harvesting functions while maintaining a small size to meet the frequent turning needs of small plots and improves safety when used in hilly and mountainous areas. During operation, the header and threshing / cleaning mechanism can rotate in the pitch direction, allowing for harvesting of crops at different heights and even those bent in the field, reducing the amount of unharvested crops and minimizing waste. The rollers have spaced pressure plates that alternately press against the ground as the machine moves forward, reducing the overall contact area between the rollers and the ground, lowering the harvester's resistance, and when applied to ratooning rice fields, reducing the number of rice stubble collapsed and increasing ratooning rice yield.

[0029] This invention is applicable to the harvesting of grain crops such as rice, wheat, and rapeseed. When in use, the reel 2 rotates to move the crops onto the header 1. The header 1 cuts the crops conveyed by the reel 2. The auger 3 rotates to convey the cut crops into the threshing box 4. The threshing roller 5 inside the threshing box 4 rotates continuously, beating and threshing the crops conveyed by the auger 3. Under the beating action, the grains on the crops separate from the stems. The grains fall to the bottom of the threshing box 4 due to their own gravity. The remaining stems and other debris are discharged into the cultivated field through the stem outlet 26 by the wind speed generated by the rotation of the threshing roller 5 and the air force introduced by the ventilation mechanism.

[0030] The support frame 6 is equipped with a foot pedal 51 and a handrail 52. When using the harvester, the operator steps on the foot pedal 51 and holds the handrail 52.

[0031] Example 2, as Figure 1-7As shown, the present invention provides a small four-wheeled harvester, including a header 1, a reel 2 and an auger 3 mounted on the header 1, a support mechanism, a threshing and cleaning mechanism movably mounted on the support mechanism and connected to the header 1, and a first drive mechanism located between the support mechanism and the header 1 for driving the header 1 and the threshing and cleaning mechanism to rotate on the support mechanism; the threshing and cleaning mechanism includes a threshing box 4 movably mounted on the support mechanism and connected to the header 1, a threshing roller 5 movably mounted inside the threshing box 4, a lifting mechanism extending from the bottom of the threshing box 4, a ventilation mechanism located between the lifting mechanism and the threshing box 4, and a second drive mechanism located on the threshing box 4 and the header 1 and connected to the reel 2, the auger 3 and the large threshing roller 5.

[0032] The support mechanism includes a support frame 6 and four rollers 7 distributed at the four corners of the support frame 6 and supported on the ground; the threshing box 4 is movably mounted on the support frame 6; the rollers 7 include two support rings 8 movably mounted on the support frame 6 and several pressure plates 9 circumferentially distributed between the two support rings 8.

[0033] The support frame 6 of the present invention is provided with a power assembly 30 connected to the roller 7. The power assembly 30 generates power and transmits the power to the roller 7, causing the roller 7 to roll, thereby enabling the harvester as a whole to move.

[0034] In this embodiment 2, the pressure plates on the rollers are spaced apart, with gaps between adjacent pressure plates. When moving forward, the pressure plates on the rollers alternately press against the ground, reducing the overall contact area between the rollers and the ground, reducing the forward resistance of the harvester, and when applied to ratooning rice paddies, reducing the number of rice stubble that are crushed in the paddies, thus increasing the yield of ratooning rice.

[0035] Example 3, as Figure 1-7 As shown, the present invention provides a small four-wheeled harvester, including a header 1, a reel 2 and an auger 3 mounted on the header 1, a support mechanism, a threshing and cleaning mechanism movably mounted on the support mechanism and connected to the header 1, and a first drive mechanism located between the support mechanism and the header 1 for driving the header 1 and the threshing and cleaning mechanism to rotate on the support mechanism; the threshing and cleaning mechanism includes a threshing box 4 movably mounted on the support mechanism and connected to the header 1, a threshing roller 5 movably mounted inside the threshing box 4, a lifting mechanism extending from the bottom of the threshing box 4, a ventilation mechanism located between the lifting mechanism and the threshing box 4, and a second drive mechanism located on the threshing box 4 and the header 1 and connected to the reel 2, the auger 3 and the large threshing roller 5.

[0036] The support mechanism includes a support frame 6 and four rollers 7 distributed at the four corners of the support frame 6 and supported on the ground; the threshing box 4 is movably mounted on the support frame 6; the rollers 7 include two support rings 8 movably mounted on the support frame 6 and several pressure plates 9 circumferentially distributed between the two support rings 8.

[0037] The support frame 6 has two mounting through holes A10, and a movable rod 13 is fixedly inserted into the two mounting through holes A10. Each end of the movable rod 13 is provided with a limiting block 12 for limiting and fixing the movable rod 13 between the two mounting through holes A10. The bottom of the threshing box 4 is provided with two mounting ears 11, which are movably inserted into the movable rod 13.

[0038] In this embodiment 3, the threshing box 4 is movably mounted on the support frame 6 by means of the mounting ear 11 being movably mounted on the movable rod 13. In this way, it is ensured that the threshing box 4 can rotate on the support frame 6 under the drive of the hydraulic cylinder.

[0039] Example 4, as Figure 1-7 As shown, the present invention provides a small four-wheeled harvester, including a header 1, a reel 2 and an auger 3 mounted on the header 1, a support mechanism, a threshing and cleaning mechanism movably mounted on the support mechanism and connected to the header 1, and a first drive mechanism located between the support mechanism and the header 1 for driving the header 1 and the threshing and cleaning mechanism to rotate on the support mechanism; the threshing and cleaning mechanism includes a threshing box 4 movably mounted on the support mechanism and connected to the header 1, a threshing roller 5 movably mounted inside the threshing box 4, a lifting mechanism extending from the bottom of the threshing box 4, a ventilation mechanism located between the lifting mechanism and the threshing box 4, and a second drive mechanism located on the threshing box 4 and the header 1 and connected to the reel 2, the auger 3 and the large threshing roller 5.

[0040] The support mechanism includes a support frame 6 and four rollers 7 distributed at the four corners of the support frame 6 and supported on the ground; the threshing box 4 is movably mounted on the support frame 6; the rollers 7 include two support rings 8 movably mounted on the support frame 6 and several pressure plates 9 circumferentially distributed between the two support rings 8.

[0041] The support frame 6 of the present invention is provided with a power assembly 30 connected to the roller 7. The power assembly 30 generates power and transmits the power to the roller 7, causing the roller 7 to roll, thereby enabling the harvester as a whole to move.

[0042] The first driving mechanism includes a hydraulic cylinder 19 mounted on a support frame 6 and connected to a cutting table 1; a sliding groove 20 is provided on the cutting table 1, a ball 21 is slidably mounted in the sliding groove 20, two outrigger plates 22 are mounted on the ball 21, a connecting rod 23 is provided between the two outrigger plates 22, and the telescopic shaft of the hydraulic cylinder 19 is movably mounted on the connecting rod 23.

[0043] In this embodiment 4, the principle of the first driving mechanism driving the cutting table 1 and the threshing box 4 to rotate on the support mechanism is as follows: the hydraulic cylinder 19 is started, the telescopic shaft of the hydraulic cylinder 19 extends and retracts, pushing or pulling the cutting table 1 to move, the cutting table is transmitted to the threshing box 4, and the cutting table 1 and the threshing box 4 rotate around the movable rod 13 in the pitch direction.

[0044] When the extension shaft of hydraulic cylinder 19 extends, it pushes the cutting table 1 upward, and the cutting table 1 transmits power to the threshing box 4, which rotates around the movable rod 13; when the extension shaft of hydraulic cylinder 19 shortens, it pulls the cutting table 1 downward, and the cutting table 1 transmits power to the threshing box 4, which rotates around the movable rod 13.

[0045] During the process of the hydraulic cylinder 19 telescopic shaft pushing the cutting table 1 upward, the ball 25 slides in the slide groove 24 towards the threshing box 4; during the process of the hydraulic cylinder 19 telescopic shaft pulling the cutting table 1 downward, the ball 25 slides in the slide groove 24 away from the threshing box 4.

[0046] When using the crop, if there are short or leaning plants among the crops to be harvested, lower the height of the cutting platform 1 to ensure that these short or leaning crops can be harvested.

[0047] Example 5, as Figure 1-7 As shown, the present invention provides a small four-wheeled harvester, including a header 1, a reel 2 and an auger 3 mounted on the header 1, a support mechanism, a threshing and cleaning mechanism movably mounted on the support mechanism and connected to the header 1, and a first drive mechanism located between the support mechanism and the header 1 for driving the header 1 and the threshing and cleaning mechanism to rotate on the support mechanism; the threshing and cleaning mechanism includes a threshing box 4 movably mounted on the support mechanism and connected to the header 1, a threshing roller 5 movably mounted inside the threshing box 4, a lifting mechanism extending from the bottom of the threshing box 4, a ventilation mechanism located between the lifting mechanism and the threshing box 4, and a second drive mechanism located on the threshing box 4 and the header 1 and connected to the reel 2, the auger 3 and the large threshing roller 5.

[0048] The lifting mechanism includes a conveying pipe 15 located on the threshing box 4 and extending from the bottom of the threshing box 4, and a pneumatic conveying pump 14 located at the top of the conveying pipe 15 and extending from the conveying pipe 15.

[0049] In this embodiment 5, after the pneumatic conveying pump 14 is started, the particles at the bottom of the threshing box 4 are lifted to the outside of the threshing box 4 by the suction of the airflow through the conveying pipe 15.

[0050] Example 6, as Figure 1-7As shown, the present invention provides a small four-wheeled harvester, including a header 1, a reel 2 and an auger 3 mounted on the header 1, a support mechanism, a threshing and cleaning mechanism movably mounted on the support mechanism and connected to the header 1, and a first drive mechanism located between the support mechanism and the header 1 for driving the header 1 and the threshing and cleaning mechanism to rotate on the support mechanism; the threshing and cleaning mechanism includes a threshing box 4 movably mounted on the support mechanism and connected to the header 1, a threshing roller 5 movably mounted inside the threshing box 4, a lifting mechanism extending from the bottom of the threshing box 4, a ventilation mechanism located between the lifting mechanism and the threshing box 4, and a second drive mechanism located on the threshing box 4 and the header 1 and connected to the reel 2, the auger 3 and the large threshing roller 5.

[0051] The lifting mechanism includes a conveying pipe 15 located on the threshing box 4 and extending from the bottom of the threshing box 4, and a pneumatic conveying pump 14 located at the top of the conveying pipe 15 and extending from the conveying pipe 15.

[0052] The ventilation system includes a fan 16 located on top of the pneumatic conveying pump 14, and a ventilation pipe 17 extending from the fan 16 and into the threshing box 4.

[0053] In this embodiment 6, after the fan 16 is started, it ventilates into the threshing box 4 through the ventilation pipe 17 to blow out the remaining stalks and debris of the crop after threshing in the threshing box 4, so that the stalks and debris are discharged through the stalk outlet under the action of wind.

[0054] Example 7, as Figure 1-7 As shown, the present invention provides a small four-wheeled harvester, including a header 1, a reel 2 and an auger 3 mounted on the header 1, a support mechanism, a threshing and cleaning mechanism movably mounted on the support mechanism and connected to the header 1, and a first drive mechanism located between the support mechanism and the header 1 for driving the header 1 and the threshing and cleaning mechanism to rotate on the support mechanism; the threshing and cleaning mechanism includes a threshing box 4 movably mounted on the support mechanism and connected to the header 1, a threshing roller 5 movably mounted inside the threshing box 4, a lifting mechanism extending from the bottom of the threshing box 4, a ventilation mechanism located between the lifting mechanism and the threshing box 4, and a second drive mechanism located on the threshing box 4 and the header 1 and connected to the reel 2, the auger 3 and the large threshing roller 5.

[0055] The lifting mechanism includes a conveying pipe 15 located on the threshing box 4 and extending from the bottom of the threshing box 4, and a pneumatic conveying pump 14 located at the top of the conveying pipe 15 and extending from the conveying pipe 15.

[0056] The outer wall of the threshing box 4 is provided with a load rack 18 located below the pneumatic conveying pump 14.

[0057] In this embodiment 7, the carrier 18 is used to place the collection bag, which is located below the pneumatic conveying pump 14. After the particles in the threshing box 4 are drawn out by the pneumatic conveying pump 14, they are discharged from the outlet of the pneumatic conveying pump 14 and fall into the collection bag below the pneumatic conveying pump 14.

[0058] Example 8, as Figure 1-7 As shown, the present invention provides a small four-wheeled harvester, including a header 1, a reel 2 and an auger 3 mounted on the header 1, a support mechanism, a threshing and cleaning mechanism movably mounted on the support mechanism and connected to the header 1, and a first drive mechanism located between the support mechanism and the header 1 for driving the header 1 and the threshing and cleaning mechanism to rotate on the support mechanism; the threshing and cleaning mechanism includes a threshing box 4 movably mounted on the support mechanism and connected to the header 1, a threshing roller 5 movably mounted inside the threshing box 4, a lifting mechanism extending from the bottom of the threshing box 4, a ventilation mechanism located between the lifting mechanism and the threshing box 4, and a second drive mechanism located on the threshing box 4 and the header 1 and connected to the reel 2, the auger 3 and the large threshing roller 5.

[0059] The threshing box 4 is provided with an installation box 24. The second drive mechanism includes a drive motor 25 located inside the installation box 24 and connected to the reel 2, the auger 3 and the threshing roller 5.

[0060] In this embodiment 8, the header 1 of the present invention is provided with a mounting rod 50, and a shaft A31 is fixedly inserted through the center of the reel 2. The shaft A31 is movably inserted between the mounting rod 50 and the mounting box 24. The mounting rod 50 and the mounting box 24 are respectively provided with a first bearing 32 adapted to the shaft A31, and both ends of the shaft A31 are respectively inserted into the corresponding first bearing 32. One end of the shaft A31 extends into the mounting box 24 and is connected to the drive motor 25.

[0061] A shaft B33 is fixedly inserted at the center of the auger 3. The shaft B33 is movably inserted through the two side walls of the cutting table 1. Each side wall of the cutting table 1 is provided with a second bearing 34 adapted to the shaft B33. Both ends of the shaft B33 are respectively inserted into the corresponding second bearing 34. One end of the shaft B33 passes through the side wall of the mounting box 24 and extends into the mounting box 24 to connect with the drive motor 25. The shaft B33 and the mounting box 24 are clearance-fitted.

[0062] The first shaft 27 on the threshing roller 5 is movably mounted on both side walls of the threshing box 4. Each side wall of the threshing box 4 is provided with a third bearing 35 adapted to the first shaft 27, and both ends of the first shaft 27 are respectively inserted into the corresponding third bearing 35. One end of the first shaft 27 passes through the side wall of the mounting box 24 and extends into the mounting box 24, connecting to the drive motor 25. The first shaft 27 and the mounting box 24 are clearance-fitted.

[0063] The drive shaft of the drive motor 25 is connected to the shaft B33. The end of the shaft B33 that extends into the mounting box 24 is provided with a first drive sprocket 36 and a second drive sprocket 37. The end of the shaft A31 that extends into the mounting box 24 is provided with a first driven sprocket 38. The end of the first shaft 27 that extends into the mounting box 24 is provided with a second driven sprocket 39. A first chain 40 is sleeved between the first drive sprocket 36 and the first driven sprocket 38. A second chain 41 is sleeved between the second drive sprocket 37 and the second driven sprocket 39.

[0064] The principle of drive motor 25 driving the reel 2, auger 3 and threshing roller 5 to rotate is as follows: when drive motor 25 starts, drive motor 25 drives shaft B33 to rotate, shaft B33 drives auger 3, first drive sprocket 36 and second drive sprocket 37 to rotate synchronously, first drive sprocket 36 transmits power to first driven sprocket 38 through first chain 40, first driven sprocket 38 rotates and drives reel 2 to rotate synchronously, second drive sprocket 37 transmits power to second driven sprocket 39 through second chain 41, second driven sprocket 39 rotates and drives threshing roller 5 to rotate synchronously.

[0065] Example 9, as Figure 1-7 As shown, the present invention provides a small four-wheeled harvester, including a header 1, a reel 2 and an auger 3 mounted on the header 1, a support mechanism, a threshing and cleaning mechanism movably mounted on the support mechanism and connected to the header 1, and a first drive mechanism located between the support mechanism and the header 1 for driving the header 1 and the threshing and cleaning mechanism to rotate on the support mechanism; the threshing and cleaning mechanism includes a threshing box 4 movably mounted on the support mechanism and connected to the header 1, a threshing roller 5 movably mounted inside the threshing box 4, a lifting mechanism extending from the bottom of the threshing box 4, a ventilation mechanism located between the lifting mechanism and the threshing box 4, and a second drive mechanism located on the threshing box 4 and the header 1 and connected to the reel 2, the auger 3 and the large threshing roller 5.

[0066] A stem outlet 26, which communicates with the interior of the threshing box 4, is provided on the side wall of the threshing box 4.

[0067] In this embodiment 9, the stem outlet 26 is used to discharge the remaining stems of the crop after threshing in the threshing box 4 and the debris formed during the process of the threshing roller 5 beating the crop.

[0068] Example 10, as Figure 1-7As shown, the present invention provides a small four-wheeled harvester, including a header 1, a reel 2 and an auger 3 mounted on the header 1, a support mechanism, a threshing and cleaning mechanism movably mounted on the support mechanism and connected to the header 1, and a first drive mechanism located between the support mechanism and the header 1 for driving the header 1 and the threshing and cleaning mechanism to rotate on the support mechanism; the threshing and cleaning mechanism includes a threshing box 4 movably mounted on the support mechanism and connected to the header 1, a threshing roller 5 movably mounted inside the threshing box 4, a lifting mechanism extending from the bottom of the threshing box 4, a ventilation mechanism located between the lifting mechanism and the threshing box 4, and a second drive mechanism located on the threshing box 4 and the header 1 and connected to the reel 2, the auger 3 and the large threshing roller 5.

[0069] The threshing roller 5 includes a first shaft 27 movably mounted on the threshing box 4, a cylinder 28 fixedly mounted on the outer wall of the first shaft 27, and several clappers 29 circumferentially distributed on the outer wall of the cylinder 28.

[0070] In this embodiment 10, after the threshing roller 5 rotates under the drive of the drive motor 25, the patting plate 29 on the threshing roller 5 alternately beats the crops conveyed by the auger 3. The particles on the crops are separated from the stems under the beating force, which is the process of threshing crops.

[0071] The drive motor 25 of this invention is a forward and reverse servo motor.

[0072] The hydraulic cylinder 19, pneumatic pump 14, fan 16, drive motor 25, and power assembly 30 used in this invention are all existing known electrical devices and can all be purchased and used directly on the market. The structure, circuit, and control principle of the hydraulic cylinder 19, pneumatic pump 14, fan 16, drive motor 25, and power assembly 30 are all existing known technologies. Therefore, the structure, circuit, and control principle of the hydraulic cylinder 19, pneumatic pump 14, fan 16, drive motor 25, and power assembly 30 will not be described in detail here.

[0073] Finally, it should be noted that the above embodiments are merely preferred embodiments of the present invention used to illustrate the technical solutions of the present invention, and are not intended to limit the invention, nor are they intended to limit the patent scope of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. That is to say, any changes or refinements made to the main design concept and spirit of the present invention that are not of substantial significance, but whose technical problems are still consistent with the present invention, should be included within the protection scope of the present invention. In addition, the direct or indirect application of the technical solutions of the present invention to other related technical fields are similarly included within the patent protection scope of the present invention.

Claims

1. A small four-wheeled harvester, comprising a header (1), a reel (2) and an auger (3) disposed on the header (1), characterized in that, It also includes a support mechanism, a threshing and cleaning mechanism movably mounted on the support mechanism and connected to the header (1), and a first drive mechanism located between the support mechanism and the header (1) for driving the header (1) and the threshing and cleaning mechanism to rotate on the support mechanism; the threshing and cleaning mechanism includes a threshing box (4) movably mounted on the support mechanism and connected to the header (1), a threshing roller (5) movably mounted inside the threshing box (4), a lifting mechanism extending from the bottom inside the threshing box (4), a ventilation mechanism located between the lifting mechanism and the threshing box (4), and a second drive mechanism located on the threshing box (4) and the header (1) and connected to the reel (2), the auger (3) and the large threshing roller (5).

2. The small four-wheel drive wheeled harvester according to claim 1, characterized in that, The support mechanism includes a support frame (6) and four rollers (7) distributed at the four corners of the support frame (6) and supported on the ground; the threshing box (4) is movably mounted on the support frame (6); the rollers (7) include two support rings (8) movably mounted on the support frame (6) and several pressure plates (9) circumferentially distributed between the two support rings (8).

3. A small four-wheel drive wheeled harvester according to claim 2, characterized in that, The support frame (6) has two mounting through holes A (10), and a movable rod (13) is fixedly inserted in the two mounting through holes A (10). Each end of the movable rod (13) is provided with a limiting block (12) for limiting and fixing the movable rod (13) between the two mounting through holes A (10). The bottom of the threshing box (4) is provided with two mounting ears (11), which are movably inserted on the movable rod (13).

4. A small four-wheel drive wheeled harvester according to claim 2, characterized in that, The first driving mechanism includes a hydraulic cylinder (19) mounted on a support frame (6) and connected to a cutting table (1); a groove (20) is provided on the cutting table (1), a ball (21) is slidably mounted in the groove (20), two extension plates (22) are provided on the ball (21), a connecting rod (23) is provided between the two extension plates (22), and the telescopic shaft of the hydraulic cylinder (19) is movably mounted on the connecting rod (23).

5. A small four-wheel drive wheeled harvester according to claim 1, characterized in that, The lifting mechanism includes a conveying pipe (15) located on the threshing box (4) and extending from the bottom of the threshing box (4), and a pneumatic conveying pump (14) located on the top of the conveying pipe (15) and extending from the conveying pipe (15).

6. A small four-wheeled wheeled harvester according to claim 5, characterized in that, The ventilation system includes a fan (16) located on top of the pneumatic conveying pump (14) and a ventilation pipe (17) extending from the fan (16) and into the threshing box (4).

7. A small four-wheel drive wheeled harvester according to claim 5, characterized in that, The outer wall of the threshing box (4) is provided with a load rack (18) located below the pneumatic conveying pump (14).

8. A small four-wheel drive wheeled harvester according to claim 1, characterized in that, The threshing box (4) is provided with an installation box (24), and the second drive mechanism includes a drive motor (25) located inside the installation box (24) and connected to the reel (2), the auger (3) and the threshing roller (5).

9. A small four-wheel drive wheeled harvester according to claim 1, characterized in that, A stalk outlet (26) communicating with the inside of the threshing box (4) is provided on the side wall of the threshing box (4).

10. A small four-wheeled wheeled harvester according to claim 1, characterized in that, The threshing roller (5) includes a first shaft (27) movably mounted on the threshing box (4), a cylinder (28) fixedly mounted on the outer wall of the first shaft (27), and several clappers (29) circumferentially distributed on the outer wall of the cylinder (28).

Images