A segmented floating contour harvester for a regenerated rice combine harvester suitable for wide and narrow row planting mode and a regenerated rice combine harvester

Abstract

The present invention provides a segmented floating profiling harvester for a regenerated rice combine harvester suitable for a wide and narrow row planting mode and a regenerated rice combine harvester, wherein the main body of the harvester is divided into two outer areas of the two tracks and an area between the two tracks according to two walking tracks on a walking chassis; the front end of the area between the two tracks of the harvester main body is hinged to a middle floating profiling cutter, and the front end of the outer area of ​​the tracks of the harvester main body is respectively hinged to a left floating profiling cutter and a right floating profiling cutter; the left-middle section cutter transmission mechanism is used to transmit power to the left floating profiling cutter and the middle floating profiling cutter respectively; the right section cutter transmission mechanism is used to transmit power to the right floating profiling cutter. The present invention meets the different optimal cutting heights of regenerated rice plants under different plant growth conditions and terrain fluctuations in different regions, avoids accidental injury to dormant buds, and provides a guarantee for the normal growth of regenerated rice in the second season.

Description

Technical Field

[0001] The invention relates to the field of intelligent agricultural machinery or harvesting platforms, and in particular to a segmented floating profiling harvesting platform for a regenerated rice combine harvester suitable for a wide and narrow row planting mode and a regenerated rice combine harvester. Background Art

[0002] Raised rice is a rice planting model of "planting once and harvesting twice". When harvesting the first season of rice, by controlling the height of the rice piles to a certain extent, the dormant buds on the rice piles can head again and grow the second season of rice. This rice planting model has the advantages of saving labor, saving seeds, high yield and good economic benefits. In recent years, the scale of ratoon rice planted in a standardized manner with wide and narrow rows has gradually increased. In this planting model, a certain width of mechanized farming road will be left between each row of ratoon rice plants to accommodate the movement of the combine harvester crawler. Therefore, by matching the spacing between adjacent mechanized farming roads with the track gauge of the combine harvester, mechanical harvesting of ratoon rice with zero rolling loss can be achieved, thereby greatly improving the yield and economic benefits of ratoon rice. However, since the mechanized farming road divides the regenerated rice plants into multiple areas, there are differences in the growth of plants and terrain undulations in different areas, so there are differences in the distribution heights of their dormant buds on the rice stakes. As mentioned earlier, whether the height of the rice stakes can be accurately controlled and the dormant buds can be retained will directly affect the yield of the second season of regenerated rice. Therefore, it is necessary to separately control the cutting height of the regenerated rice plants in different areas on both sides of the mechanized farming road.

[0003] The cutter of the traditional combine harvester's harvesting table is an integrated whole, and its cutting height is adjusted uniformly. Therefore, it is impossible to simultaneously meet the optimal cutting heights of "regenerated rice plants on the left side of the left track", "regenerated rice plants between the two tracks" and "regenerated rice plants on the right side of the right track", resulting in accidental damage to dormant buds, which directly reduces the yield of regenerated rice in the second season. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a segmented floating contoured harvesting table and a regenerated rice combine harvester suitable for wide and narrow row planting modes. The cutter on the harvester table is divided into three sections: left, middle and right, which are respectively used to cut the regenerated rice plants in three areas, namely, the left side of the left track of the combine harvester, between the two tracks and the right side of the right track. The working height of each section of the cutter can be adjusted individually, thereby meeting the different optimal cutting heights of the regenerated rice plants under the conditions of different plant growth conditions and terrain undulations in different areas, avoiding accidental damage to dormant buds, and providing a guarantee for the normal growth of regenerated rice in the second season.

[0005] The present invention achieves the above technical objectives through the following technical means.

[0006] A segmented floating profiling harvester for a regenerated rice combine harvester suitable for a wide and narrow row planting mode, wherein a main body of the harvester is divided into two outer areas of the two crawlers and an area between the two crawlers according to two walking crawlers on a walking chassis; a middle floating profiling cutter is hingedly connected to the front end of the area between the two crawlers of the harvester main body, and a left floating profiling cutter and a right floating profiling cutter are respectively hingedly connected to the front end of the outer area of ​​the crawlers of the harvester main body;

[0007] The left-middle section cutter transmission mechanism is used to transmit power to the left section floating profiling cutter and the middle section floating profiling cutter respectively; the right section cutter transmission mechanism is used to transmit power to the right section floating profiling cutter.

[0008] Furthermore, the left-section floating profiling cutter, the right-section floating profiling cutter and the middle-section floating profiling cutter all include a frame, a reciprocating cutter, an electro-hydraulic profiling device, an adjusting hydraulic cylinder and an angle sensor; one end of the frame is hinged on the cutting table body, and the other end of the frame is provided with a reciprocating cutter; an electro-hydraulic profiling device is provided at the hinge point between the frame and the cutting table body, which is used to obtain the distance from the hinge point to the ground; an adjusting hydraulic cylinder is provided between the cutting table body and the other end of the frame, which is used to adjust the angle of the reciprocating cutter; the angle sensor is used to measure the angle between the reciprocating cutter and the horizontal plane.

[0009] Furthermore, the frame includes a supporting crossbeam, a base plate, an articulated shaft, a longitudinal beam and a hydraulic cylinder connecting seat; the articulated shaft is connected to the supporting crossbeam through the longitudinal beam, and the base plate is laid on the upper side between the articulated shaft and the supporting crossbeam; the hydraulic cylinder connecting seat is installed on the longitudinal beam; the reciprocating cutter is installed on the supporting crossbeam, one end of the electro-hydraulic profiling device is installed on the articulated shaft, and one end of the adjusting hydraulic cylinder is connected to the hydraulic cylinder connecting seat; the articulated shaft is hinged to the cutting table body.

[0010] Furthermore, the middle section floating profiling cutter also includes a middle section crop dividing plate and a middle section cutting knife driving plate, and the crop dividing plates are provided on both sides of the reciprocating cutting knife of the middle section floating profiling cutter; the middle section cutting knife driving plate is located below the frame, and the middle section cutting knife driving plate is connected to the reciprocating cutting knife of the middle section floating profiling cutter, and the middle section cutting knife driving plate is connected to the left-middle section cutter transmission mechanism.

[0011] Furthermore, the main body of the cutting table includes a cutting table frame, a cutting table auger and a reel; a plurality of hinged structures are provided at the front end of the cutting table frame, which are used to be hinged with the frame of the left-section floating profiling cutter, the frame of the right-section floating profiling cutter and the frame of the middle-section floating profiling cutter respectively; a cutting table auger and a reel are respectively provided on the cutting table frame; slide grooves are respectively provided on both sides of the cutting table frame, which are respectively used to place the sliding parts in the left-middle section cutter transmission mechanism and the right section cutter transmission mechanism.

[0012] Further, the left-middle section cutter transmission mechanism includes a first input pulley, a first main drive shaft, a left section swing shaft, a left section swing shaft bearing seat, a left section swing arm, a left section power connecting plate, a middle section swing shaft, a middle section swing arm and a middle section power connecting plate; the first input pulley is used to drive the first main drive shaft, and the two ends of the first main drive shaft are respectively connected to one end of the left section swing shaft and one end of the middle section swing shaft through a swing ring assembly, and the other end of the left section swing shaft is installed with a left section swing shaft bearing seat, and the left section swing shaft bearing seat is connected to the The slide groove of the cutting table frame is slidably matched, and the bearing seat of the left-section swing shaft is moved in the slide groove through the extension and contraction of the adjusting hydraulic cylinder of the left-section floating profiling cutter; the other end of the left-section swing shaft is connected to the left-section power connecting plate through the left-section swing arm, and the other end of the left-section power connecting plate is connected to the reciprocating cutter of the left-section floating profiling cutter; the other end of the middle-section swing shaft is connected to the middle-section power connecting plate through the middle-section swing arm, and the other end of the middle-section power connecting plate is connected to the reciprocating cutter of the middle-section floating profiling cutter.

[0013] Furthermore, the right-section cutter transmission mechanism includes a second input pulley, a second main drive shaft, a right-section swing shaft, a right-section swing shaft bearing seat, a right-section swing arm and a right-section power connecting plate; the second input pulley is used to drive the second main drive shaft, one end of the second main drive shaft is connected to one end of the right-section swing shaft through a swing ring assembly, the other end of the right-section swing shaft is installed with a right-section swing shaft bearing seat, the right-section swing shaft bearing seat is slidably matched with the slide groove of the cutting table frame, and the right-section swing shaft bearing seat is moved in the slide groove by the extension and contraction of the adjusting hydraulic cylinder of the right-section floating profiling cutter; the other end of the right-section swing shaft is connected to the right-section power connecting plate through the right-section swing arm, and the other end of the right-section power connecting plate is connected to the reciprocating cutting knife of the right-section floating profiling cutter.

[0014] Furthermore, it also includes a control system, which determines the ground clearance of the outer areas of the two crawlers and the area between the two crawlers respectively according to the angle sensors and the electro-hydraulic profiling device on the left floating profiling cutter, the right floating profiling cutter and the middle floating profiling cutter;

[0015] When one of the heights above the ground exceeds a set value, the control system adjusts the adjusting hydraulic cylinder of the floating profiling cutter in the area corresponding to the height above the ground.

[0016] A regenerated rice combine harvester comprises a segmented floating contour harvesting platform of the regenerated rice combine harvester suitable for a wide and narrow row planting mode according to any one of claims 1 to 8.

[0017] Furthermore, the center axis of the left crawler on the walking chassis coincides with the boundary line between the middle floating profiling cutter and the left floating profiling cutter; the center axis of the right crawler on the walking chassis coincides with the boundary line between the middle floating profiling cutter and the right floating profiling cutter.

[0018] The beneficial effects of the present invention are:

[0019] 1. The segmented floating profiling cutter for the regenerated rice combine harvester suitable for the wide and narrow row planting mode of the present invention divides the cutting area into two outer areas of the crawler and an area between the two crawlers according to the walking crawler, and uses the left-segment floating profiling cutter, the middle-segment floating profiling cutter and the right-segment floating profiling cutter to cut each area respectively, which can highly match the wide and narrow row planting mode, and can adjust the cutting height separately to meet the different optimal cutting heights of the regenerated rice plants under different plant growth conditions and terrain undulations in the three areas of the left side of the left crawler of the combine harvester, between the two crawlers and on the right side of the right crawler, so as to avoid accidental damage to dormant buds and effectively improve the yield of regenerated rice.

[0020] 2. The segmented floating profiling harvesting table of the regenerated rice combine harvester suitable for wide and narrow row planting mode described in the present invention is not only suitable for regenerated rice, but also can be used to harvest ordinary single-season rice, double-season rice, wheat, rapeseed and other stalk crops, and is especially suitable for harvesting crops such as soybeans that require a profiling function of the harvesting table. Therefore, the present invention has a wide range of applications and broad market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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. The drawings described below are some embodiments of the present invention. For ordinary technicians in this field, it is obvious that other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a three-dimensional diagram of the segmented floating contour harvesting platform of the regenerated rice combine harvester suitable for wide and narrow row planting mode according to the present invention.

[0023] Figure 2 This is a three-dimensional diagram from another perspective of the segmented floating contour harvesting platform of the regenerated rice combine harvester suitable for wide and narrow row planting modes described in the present invention.

[0024] Figure 3 It is a three-dimensional diagram of the left section floating contour cutter structure described in the present invention.

[0025] Figure 4 A three-dimensional diagram from another perspective of the left-section floating contour cutter structure of the present invention.

[0026] Figure 5 It is a three-dimensional diagram of the structure of the mid-section floating contour cutter described in the present invention.

[0027] Figure 6 A three-dimensional diagram from another perspective of the mid-section floating contour cutter structure of the present invention.

[0028] Figure 7 It is a three-dimensional diagram of the right-section floating contour cutter structure described in the present invention.

[0029] Figure 8 A three-dimensional diagram from another perspective of the right-section floating contour cutter structure of the present invention.

[0030] Fig. 9 The figure is a schematic diagram of the main structure of the header according to the present invention.

[0031] Fig.10 It is a schematic diagram of the structure of the transmission mechanism of the left-middle section cutter described in the present invention.

[0032] Fig.11 It is a schematic diagram of the transmission mechanism structure of the right section cutter described in the present invention.

[0033] Fig.12 The present invention is a flowchart of the profiling process of the segmented floating profiling header.

[0034] Fig.13 It is a simplified mathematical model diagram of the segmented floating profiling header at the reference height of the present invention;

[0035] Fig.14 The present invention is a simplified mathematical model diagram of the segmented floating contour harvesting platform and its structure during the working process of the regenerated rice combine harvester.

[0036] Fig.15 It is a front view of the combine harvester with the segmented floating profiling header and profiling method for regenerated rice in the wide and narrow row planting mode according to the present invention when operating in a regenerated rice field in the wide and narrow row planting mode.

[0037] In the figure:

[0038] 1-left section floating profiling cutter; 1-1-left section frame; 1-2-left section reciprocating cutter; 1-3-left section electro-hydraulic profiling device; 1-4-left section angle sensor; 1-5-left section adjusting hydraulic cylinder; 1-1-1-left section supporting crossbeam; 1-1-2-left section bottom plate; 1-1-3-left section articulated axle; 1-1-4-left section longitudinal beam; 1-1-5-left section hydraulic cylinder connecting seat; 2-middle section floating profiling cutter; 2-1-middle section frame; 2-2-middle section reciprocating cutter; 2- 3-middle section dividing plate; 2-4-middle section cutting knife driving plate; 2-5-middle section electro-hydraulic profiling device; 2-6-middle section angle sensor; 2-7-middle section adjusting hydraulic cylinder; 2-1-1-middle section supporting crossbeam; 2-1-2-middle section bottom plate; 2-1-3-middle section articulated axle; 2-1-4-middle section longitudinal beam; 2-1-5-middle section hydraulic cylinder connecting seat; 3-right section floating profiling cutter; 3-1-right section frame; 3-2-right section reciprocating cutting knife; 3-3-right section electro-hydraulic profiling device; 3-4 - right section sensor; 3-5-right section adjustment hydraulic cylinder; 3-1-1-right section support beam; 3-1-2-right section bottom plate; 3-1-3-right section articulated axle; 3-1-4-right section longitudinal beam; 3-1-5-right section hydraulic cylinder connection seat; 4-cutting platform body; 4-1-cutting platform frame; 4-2-cutting platform auger; 4-3-reel; 4-1-1-articulated structure; 4-1-2-chute; 4-1-3-hydraulic cylinder connection seat; 5-left-middle section cutter transmission mechanism; 5-1-first transmission Input pulley; 5-2-first main drive shaft; 5-3-left section swing shaft; 5-4-left section swing shaft bearing seat; 5-5-left section swing arm; 5-6-left section power connecting plate; 5-7-middle section swing shaft; 5-8-middle section swing arm; 5-9-middle section power connecting plate; 6-right section cutter transmission mechanism; 6-1-second input pulley; 6-2-second main drive shaft; 6-3-right section swing shaft; 6-4-right section swing shaft bearing seat; 6-5-right section swing arm; 6-6-right section power connecting plate. DETAILED DESCRIPTION

[0039] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "axial", "radial", "vertical", "horizontal", "inner", "outer" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] like Figure 1 and Figure 2 As shown, the segmented floating profiling header of the regenerated rice combine harvester suitable for the wide and narrow row planting mode of the present invention divides the header body 4 into two outer areas of the tracks and an area between the two tracks according to the two walking tracks on the walking chassis; the front end of the area between the two tracks of the header body 4 is hinged to the middle floating profiling cutter 2, and the front end of the outer area of ​​the tracks of the header body 4 is respectively hinged to the left floating profiling cutter 1 and the right floating profiling cutter 3; the left-middle section cutter transmission mechanism 5 is used to transmit power to the left floating profiling cutter 1 and the middle floating profiling cutter 2 respectively; the right section cutter transmission mechanism 6 is used to transmit power to the right floating profiling cutter 3. The left-middle section cutter transmission mechanism 5 transmits power to the left floating profiling cutter 1 and the middle floating profiling cutter 2 respectively from the left end surface and the lower surface of the header body 4; the right section cutter transmission mechanism 6 transmits power to the right floating profiling cutter 3 from the right end surface of the header body 4.

[0043] The left floating profiling cutter 1 and the right floating profiling cutter 3 are symmetrically arranged on the outer side of the crawler of the cutting platform body 4; Figure 3 and Figure 4As shown, the left section floating profiling cutter 1 includes a left section frame 1-1, a left section reciprocating cutter 1-2, a left section electro-hydraulic profiling device 1-3 and a left section adjusting hydraulic cylinder 1-5; the left section frame 1-1 includes a left section supporting crossbeam 1-1-1, a left section bottom plate 1-1-2, a left section articulated shaft 1-1-3, a left section longitudinal beam 1-1-4 and a left section hydraulic cylinder connecting seat 1-1-5; the left section articulated shaft 1-1-3 is connected to the left section supporting crossbeam 1-1-1 through the left section longitudinal beam 1-1-4, and the left section articulated shaft 1-1-3 is connected to the left section supporting crossbeam A left section bottom plate 1-1-2 is laid on the upper side between 1-1-1; a left section hydraulic cylinder connecting seat 1-1-5 is installed on the left section longitudinal beam 1-1-4; the left section reciprocating cutter 1-2 is installed on the left section supporting beam 1-1-1, one end of the left section electro-hydraulic profiling device 1-3 is installed on the left section articulated shaft 1-1-3, one end of the left end adjusting hydraulic cylinder 1-5 is connected to the left section hydraulic cylinder connecting seat 1-1-5, and the other end of the left section adjusting hydraulic cylinder 1-5 is connected to the cutting platform body 4; the left section articulated shaft 1-1-3 is hinged to the cutting platform body 4.

[0044] like Figure 5 and Figure 6 As shown, the middle section floating profiling cutter 2 includes a middle section frame 2-1, a middle section reciprocating cutter 2-2, a middle section dividing plate 2-3, a middle section cutter driving plate 2-4, a middle section electro-hydraulic profiling device 2-5 and a middle section adjusting hydraulic cylinder 2-7; the middle section frame 2-1 includes a middle section supporting crossbeam 2-1-1, a middle section bottom plate 2-1-2, a middle section articulated shaft 2-1-3, a middle section longitudinal beam 2-1-4 and a middle section hydraulic cylinder connecting seat 2-1-5; the middle section articulated shaft 2-1-3 is connected to the middle section supporting crossbeam 2-1-1 through the middle section longitudinal beam 2-1-4, and the middle section bottom plate 2-1-2 is laid on the upper side between the middle section articulated shaft 2-1-3 and the middle section supporting crossbeam 2-1-1; the middle section longitudinal beam 2 -1-4 is installed with a middle section hydraulic cylinder connecting seat 2-1-5; the middle section reciprocating cutter 2-2 is installed on the middle section supporting beam 2-1-1, one end of the middle section electro-hydraulic profiling device 2-5 is installed on the middle section articulated shaft 2-1-3, one end of the middle section adjusting hydraulic cylinder 2-5 is connected to the middle section hydraulic cylinder connecting seat 2-1-5, and the other end of the middle section adjusting hydraulic cylinder 2-5 is connected to the cutting platform body 4; the middle section reciprocating cutter 2-2 is provided with a dividing plate 2-3 on both sides; the middle section cutter drive plate 2-4 is located below the middle section frame 2-1, and the front end edge of the middle section cutter drive plate 2-4 is riveted to the lower surface of the middle section reciprocating cutter 2-2; the middle section articulated shaft 2-1-3 is hinged to the cutting platform body 4.

[0045] like Figure 7 and Figure 8As shown, the right floating profiling cutter 3 includes a frame 3-1, a reciprocating cutter 3-2, an electro-hydraulic profiling device 3-3, an angle sensor 3-4 and an adjusting hydraulic cylinder 3-5; the frame 3-1 includes a cutter support beam 3-1-1, a bottom plate 3-1-2, a hinged shaft 3-1-3, a reinforcing longitudinal beam 3-1-4 and a hydraulic cylinder connection seat 3-1-5; the reciprocating cutter 3-2 is mounted on the cutter support beam 3-1-1, the electro-hydraulic profiling device 3-3 is mounted on the hinged shaft 3-1-3, the angle sensor 3-4 is sleeved on the hinged shaft 3-1-3, and one end of the adjusting hydraulic cylinder 3-5 is connected to the hydraulic cylinder connection seat 3-1-5. The components of the right floating profiling cutter 3 and the left floating profiling cutter 1 are completely the same, and the structures of the two are mirror-symmetrical.

[0046] like Fig. 9 As shown, the main body 4 of the cutting platform includes a cutting platform frame 4-1, a cutting platform auger 4-2 and a reel 4-3; the front end of the cutting platform frame 4-1 is provided with a plurality of hinge structures 4-1-1, which are respectively hinged with the frame of the left section floating profiling cutter 1, the frame of the right section floating profiling cutter 3 and the frame of the middle section floating profiling cutter 2; the cutting platform frame 4-1 is respectively provided with a cutting platform auger 4-2 and a reel 4-3; the two sides of the cutting platform frame 4-1 are respectively provided with a slide groove 4-1-2, which is respectively used to place the sliding parts in the left-middle section cutter transmission mechanism 5 and the right section cutter transmission mechanism 6. In the embodiment, the sliding parts are the left section swing shaft bearing seat 5-4 and the right section swing shaft bearing seat 6-4, which move up and down along the bearing seat slide groove 4-1-2 during the cutter height adjustment process. The lower edge of the rear end face of the cutting table frame 4-1 is processed with left, middle and right three hydraulic cylinder connecting seats 4-1-3, which are used to connect with one end of the left section floating profiling cutter adjusting hydraulic cylinder 1-5, the middle section floating profiling cutter adjusting hydraulic cylinder 2-7 and the right section floating profiling cutter adjusting hydraulic cylinder 3-5.

[0047] like Fig.10As shown, the left-middle section cutter transmission mechanism 5 includes a first input pulley 5-1, a first main drive shaft 5-2, a left section swing shaft 5-3, a left section swing shaft bearing seat 5-4, a left section swing arm 5-5, a left section power connecting plate 5-6, a middle section swing shaft 5-7, a middle section swing arm 5-8 and a middle section power connecting plate 5-9; the first input pulley 5-1 is connected to the gearbox output shaft pulley of the combine harvester conveying threshing device through a rubber transmission belt to obtain power; the first input pulley 5-1 is used to drive the first main drive shaft 5-2, and the two ends of the first main drive shaft 5-2 are respectively connected to one end of the left section swing shaft 5-3 and one end of the middle section swing shaft 5-7 through a swing ring assembly. The swing ring assembly is a common mechanical structure in the cutting table that converts rotational motion into swinging. Its structure is a prior art and will not be repeated here. The other end of the left section swing shaft 5-3 is installed with the left section swing shaft bearing seat 5-4, and the left section swing shaft bearing seat 5-4 is slidably matched with the slide groove 4-1-2 of the cutting table frame 4-1, and the left section swing shaft bearing seat 5-4 is moved in the slide groove by the extension and contraction of the left section adjusting hydraulic cylinder 1-5; the other end of the left section swing shaft 5-3 is connected to the left section power connecting plate 5-6 through the left section swing arm 5-5, and the other end of the left section power connecting plate 5-6 is connected to the left section floating profiling cutter 1 for driving the reciprocating cutter to move back and forth; the other end of the middle section swing shaft 5-7 is connected to the middle section power connecting plate 5-9 through the middle section swing arm 5-8, and the other end of the middle section power connecting plate 5-9 is connected to the middle section floating profiling cutter 2 for driving the reciprocating cutter to move back and forth.

[0048] like Fig.11 As shown, the right section cutter transmission mechanism 6 includes a second input pulley 6-1, a second main drive shaft 6-2, a right section swing shaft 6-3, a right section swing shaft bearing seat 6-4, a right section swing arm 6-5 and a right section power connecting plate 6-6; the second input pulley 6-1 is used to drive the second main drive shaft 6-2, one end of the second main drive shaft 6-2 is connected to one end of the right section swing shaft 6-3 through a swing ring assembly, and the other end of the right section swing shaft 6-3 is installed with a right section swing shaft Bearing seat 6-4, the right section swing shaft bearing seat 6-4 is slidably matched with the slide groove 4-1-2 of the cutting table frame 4-1, and the right section swing shaft bearing seat 6-4 is moved in the slide groove by the extension and contraction of the right section adjusting hydraulic cylinder 3-5; the other end of the right section swing shaft 6-3 is connected to the right section power connecting plate 6-6 through the right section swing arm 6-5, and the other end of the right section power connecting plate 6-6 is connected to the right section floating profiling cutter 3, which is used to drive the reciprocating cutting knife to move back and forth.

[0049] like Fig.12 As shown, the profiling method of the segmented floating profiling header of the regenerated rice combine harvester suitable for the wide and narrow row planting mode of the present invention comprises the following steps:

[0050] S1: Perform height calibration on a horizontal road surface, adjust the left floating profiling cutter, the middle floating profiling cutter, and the right floating profiling cutter to a reference height, at which the left, middle, and right floating profiling cutters and their reciprocating cutters and the adjusting hydraulic cylinder are all in a horizontal position, the angle measured by the angle sensor is 0°, and the ground clearance measured by the electro-hydraulic profiling device is consistent with the actual ground clearance of the reciprocating cutter;

[0051] S2: Investigate the plant growth and terrain undulations in different areas of the regenerated rice field to be harvested, and preset the ground height ranges of the reciprocating cutters of the left, middle and right floating profile cutters;

[0052] S3: The regenerated rice combine harvester is working in the field. The angle sensor measures the angle between the reciprocating cutter and the horizontal plane as γ in real time. The electro-hydraulic profiling device measures the ground height of the left, middle and right floating profiling cutters and the hinged position of the header body as H in real time. The control unit calculates the real-time ground height h of the reciprocating cutter based on γ and H.

[0053] S4: The control unit determines whether the reciprocating cutters of the left, middle and right floating contour cutters are within a preset ground clearance range. If they are within the range, no adjustment is performed. If they are above or below the height range, the control unit calculates the extension / contraction amount of the regulating hydraulic cylinder and further adjusts the flow of the regulating hydraulic cylinder to return the ground clearance of the reciprocating cutters to within the preset range.

[0054] The following uses the left floating profiling cutter as an example to explain in detail the calculation method of the real-time ground clearance h of the reciprocating cutter and the adjustment method of the hydraulic cylinder extension Δx as follows:

[0055] like Fig.13 As shown, the sectional floating profiling header at the reference height is simplified. In the figure, point A represents the header frame hydraulic cylinder connection seat; point B represents the hinge point between the left section floating profiling cutter and the header body; point C represents the welding fixing point of the left section floating profiling cutter frame hydraulic cylinder connection seat on the reinforced longitudinal beam; point D represents the hinge point between the left section floating profiling cutter frame hydraulic cylinder connection seat and the left section floating profiling cutter adjustment hydraulic cylinder; point E represents the top point of the cutter; h is the height above the ground of the top of the reciprocating cutter; H is the height above the ground at the hinged position, which is the height data measured by the electro-hydraulic profiling device. AD That is to adjust the length of the hydraulic cylinder. At the same time, angle α is defined as the angle between segment AB and the horizontal plane, and angle γ is defined as the angle between segment BE and the horizontal plane. At this reference height, angle γ is 0°, so it is not shown in the figure.

[0056] like Fig.14As shown in the figure, when the regenerated rice combine harvester is working in the field, in order to meet the optimal cutting height of regenerated rice in different areas, the height h of the top of the reciprocating cutter from the ground needs to be adjusted. At this time, the data of h can be calculated according to the data γ measured by the angle sensor and the data H measured by the electro-hydraulic profiling device by the following formula:

[0057] h=Hl BE ·sinγ

[0058] After obtaining the value of h, it is compared with the preset height range above the ground. If the value of h is within the range, no adjustment is made. If it is higher or lower than the range, the control unit calculates the extension / contraction of the regulating hydraulic cylinder and further adjusts the flow of the regulating hydraulic cylinder to return the height of the reciprocating cutter above the ground to within the preset range. Fig.14 And the cosine theorem, it can be deduced that the relationship between the length x of the hydraulic cylinder and γ is:

[0059] l AD 2 = l AB 2 +l BD 2 -2·l AB ·l BD ·cos(π-α-γ-∠CBD)

[0060] You can get l AD The relationship between and h is:

[0061]

[0062] According to the above formula, the length of the hydraulic cylinder corresponding to different cutter heights can be calculated, so that when the h value is outside the preset ground height range, the length of the hydraulic cylinder can be adjusted by adjusting l AD , so that the cutter height returns to the preset range.

[0063] Embodiment 2:

[0064] like Fig.15 The figure shows a combine harvester, which includes the segmented floating profiling cutter of the regenerated rice combine harvester suitable for the wide and narrow row planting mode described in Example 1. In the front view of the combine harvester, the center axis of the left crawler coincides with the boundary line between the left floating profiling cutter and the middle floating profiling cutter; the center axis of the right crawler coincides with the boundary line between the right floating profiling cutter and the middle floating profiling cutter. The combine harvester has the beneficial effects of Example 1, which will not be described in detail here.

[0065] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0066] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention. They are not intended to limit the scope of protection of the present invention. All equivalent embodiments or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A segmented floating profiling harvester for a regenerated rice combine harvester suitable for wide and narrow row planting mode, characterized in that: The cutting platform body (4) is divided into two outer areas of the tracks and an area between the two tracks according to the two walking tracks on the walking chassis; the front end of the area between the two tracks of the cutting platform body (4) is hingedly connected to a middle floating profiling cutter (2), and the front end of the outer area of ​​the tracks of the cutting platform body (4) is respectively hingedly connected to a left floating profiling cutter (1) and a right floating profiling cutter (3); The left-middle section cutter transmission mechanism (5) is used to transmit power to the left section floating profiling cutter (1) and the middle section floating profiling cutter (2) respectively; the right section cutter transmission mechanism (6) is used to transmit power to the right section floating profiling cutter (3); The left floating profiling cutter (1), the right floating profiling cutter (3) and the middle floating profiling cutter (2) all comprise a frame, a reciprocating cutter, an electro-hydraulic profiling device, an adjusting hydraulic cylinder and an angle sensor; one end of the frame is hinged on the cutting platform body (4), the other end of the frame is provided with a reciprocating cutter, and the hinge point between the frame and the cutting platform body (4) is provided with an electro-hydraulic profiling device for obtaining the distance from the hinge point to the ground; an adjusting hydraulic cylinder is provided between the cutting platform body (4) and the other end of the frame for adjusting the angle of the reciprocating cutter; the angle sensor is used to measure the angle between the reciprocating cutter and the horizontal plane; The control system also includes a control system, which determines the real-time ground clearance of the reciprocating cutter of the left section floating profiling cutter (1) and the reciprocating cutter of the right section floating profiling cutter (3) in the area outside the two crawlers and the real-time ground clearance of the reciprocating cutter of the middle section floating profiling cutter (2) in the area between the two crawlers according to the angle sensors and the electro-hydraulic profiling device on the left section floating profiling cutter (1), the right section floating profiling cutter (3) and the middle section floating profiling cutter (2); When one of the real-time ground clearance heights is not within the preset ground clearance height range, the control system adjusts the adjusting hydraulic cylinder of the floating profiling cutter in the area corresponding to the real-time ground clearance height.

2. The segmented floating profiling harvesting platform of the regenerated rice combine harvester suitable for wide and narrow row planting mode according to claim 1, characterized in that: The frame comprises a supporting crossbeam, a bottom plate, an articulated shaft, a longitudinal beam and a hydraulic cylinder connection seat; the articulated shaft is connected to the supporting crossbeam through the longitudinal beam, and the bottom plate is laid on the upper side between the articulated shaft and the supporting crossbeam; the hydraulic cylinder connection seat is installed on the longitudinal beam; the reciprocating cutter is installed on the supporting crossbeam, one end of the electro-hydraulic profiling device is installed on the articulated shaft, and one end of the adjusting hydraulic cylinder is connected to the hydraulic cylinder connection seat; the articulated shaft is articulated with the cutting table body (4).

3. The segmented floating profiling harvesting platform of the regenerated rice combine harvester suitable for wide and narrow row planting mode according to claim 1, characterized in that: The middle section floating profiling cutter (2) further comprises a middle section crop separation plate (2-3) and a middle section cutter driving plate (2-4), wherein the middle section crop separation plate (2-3) is arranged on both sides of the reciprocating cutter of the middle section floating profiling cutter (2); the middle section cutter driving plate (2-4) is located below the frame, the middle section cutter driving plate (2-4) is connected to the reciprocating cutter of the middle section floating profiling cutter (2), and the middle section cutter driving plate (2-4) is connected to the left-middle section cutter transmission mechanism (5).

4. The segmented floating profiling harvesting platform of the regenerated rice combine harvester suitable for wide and narrow row planting mode according to claim 1, characterized in that: The cutting platform body (4) comprises a cutting platform frame (4-1), a cutting platform auger (4-2) and a reel (4-3); a plurality of hinged structures (4-1-1) are provided at the front end of the cutting platform frame (4-1), which are respectively hinged with the frame of the left section floating profiling cutter (1), the frame of the right section floating profiling cutter (3) and the frame of the middle section floating profiling cutter (2); the cutting platform auger (4-2) and the reel (4-3) are respectively provided on the cutting platform frame (4-1); sliding grooves (4-1-2) are respectively provided on both sides of the cutting platform frame (4-1), which are respectively used to place sliding components in the left-middle section cutter transmission mechanism (5) and the right section cutter transmission mechanism (6).

5. The segmented floating profiling harvesting platform of the regenerated rice combine harvester suitable for wide and narrow row planting mode according to claim 1, characterized in that: The left-middle section cutter transmission mechanism (5) comprises a first input pulley (5-1), a first main drive shaft (5-2), a left section swing shaft (5-3), a left section swing shaft bearing seat (5-4), a left section swing arm (5-5), a left section power connecting plate (5-6), a middle section swing shaft (5-7), a middle section swing arm (5-8) and a middle section power connecting plate (5-9); the first input pulley (5-1) is used to drive the first main drive shaft (5-2); two ends of the first main drive shaft (5-2) are respectively connected to one end of the left section swing shaft (5-3) and one end of the middle section swing shaft (5-7) through a swing ring assembly; the other end of the left section swing shaft (5-3) is installed with a left section swing shaft bearing seat (5-4); the left section swing shaft bearing seat (5-5) is provided with a left section swing shaft bearing seat (5-6); the left section swing shaft bearing seat (5-7) is provided with a left section swing shaft bearing seat (5-8); the left section swing shaft bearing seat (5-9) is provided with a left section swing shaft bearing seat (5-9); the left section swing shaft bearing seat (5-1) is provided with a left section swing shaft bearing seat (5-4); the left section swing shaft bearing seat (5-6) is provided with a left section swing shaft bearing seat (5-6); the left section swing shaft bearing seat (5-7) is provided with a left section swing shaft bearing seat (5-8); the left section swing shaft bearing seat (5-9) is provided with a left section swing shaft bearing seat (5-9); the left section swing shaft bearing seat (5-9) is provided with a left section swing shaft bearing seat (5-6); the left section swing shaft bearing seat (5-6) is provided with a left section swing shaft bearing seat (5-7); the left section swing shaft bearing seat (5-9) is provided with a left section swing shaft bearing seat (5-9); the left section swing shaft bearing seat (5-9) is provided with a left section swing shaft bearing seat (5-9); the left The seat (5-4) is slidably matched with the slide groove (4-1-2) of the cutting table frame (4-1), and the left section swing shaft bearing seat (5-4) moves in the slide groove through the extension and contraction of the regulating hydraulic cylinder of the left section floating profiling cutter (1); the other end of the left section swing shaft (5-3) is connected to one end of the left section power connecting plate (5-6) through the left section swing arm (5-5), and the other end of the left section power connecting plate (5-6) is connected to the reciprocating cutter of the left section floating profiling cutter (1); the other end of the middle section swing shaft (5-7) is connected to one end of the middle section power connecting plate (5-9) through the middle section swing arm (5-8), and the other end of the middle section power connecting plate (5-9) is connected to the reciprocating cutter of the middle section floating profiling cutter (2).

6. The segmented floating profiling harvesting platform of the regenerated rice combine harvester suitable for wide and narrow row planting mode according to claim 1, characterized in that: The right section cutter transmission mechanism (6) comprises a second input pulley (6-2), a second main drive shaft (6-1), a right section swing shaft (6-3), a right section swing shaft bearing seat (6-4), a right section swing arm (6-5) and a right section power connecting plate (6-6); the second input pulley (6-2) is used to drive the second main drive shaft (6-1); one end of the second main drive shaft (6-1) is connected to one end of the right section swing shaft (6-3) through a swing ring assembly; the other end of the right section swing shaft (6-3) is equipped with a right section swing shaft The bearing seat (6-4) of the right section swing shaft is slidably matched with the slide groove (4-1-2) of the cutting table frame (4-1), and the right section swing shaft bearing seat (6-4) moves in the slide groove through the extension and contraction of the regulating hydraulic cylinder of the right section floating profiling cutter (3); the other end of the right section swing shaft (6-3) is connected to one end of the right section power connecting plate (6-6) through the right section swing arm (6-5), and the other end of the right section power connecting plate (6-6) is connected to the reciprocating cutter of the right section floating profiling cutter (3).

7. A regenerated rice combine harvester, characterized in that: It comprises a segmented floating profiling harvesting platform of a regenerated rice combine harvester suitable for wide and narrow row planting modes according to any one of claims 1 to 6.

8. The regenerated rice combine harvester according to claim 7, characterized in that: The center axis of the left crawler track on the walking chassis coincides with the boundary line between the middle floating profiling cutter (2) and the left floating profiling cutter (1); the center axis of the right crawler track on the walking chassis coincides with the boundary line between the middle floating profiling cutter (2) and the right floating profiling cutter (3).

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