A device for straightening rice stubble during mechanical harvesting and rolling of regenerated rice

Abstract

A device for straightening rice stubble for mechanical harvesting and rolling of regenerated rice, wherein an upper support reinforcement plate and a lower support reinforcement plate are welded to a straightening transmission mechanism, an upper straightening mechanism and a lower straightening device are respectively fixed on the upper support reinforcement plate and the lower support reinforcement plate, and the straightening transmission mechanism adopts a frame to fix the relative position between transmission bevel gears, thereby effectively reducing the phenomenon of bevel gears jumping due to impact and improving transmission stability; at the same time, the cross-section of the anisotropic straightener is L-shaped, and its top can gather the rice stubble, making it easier to lift up the rolled rice stubble and improve the success rate of straightening, thereby improving the damaged morphology of the rolled rice stubble, promoting the self-repair of the rolled rice stubble, and improving the germination of axillary buds in the regeneration season; and the device has a compact structure, is easy to install, and has strong practicality.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, and in particular to a device for straightening regenerated rice stubbles after mechanical harvesting and rolling. Background Art

[0002] Ratoon rice is a simplified planting method for increasing yield and multiple cropping index in areas where temperature and light resources are sufficient in one season but insufficient in two seasons. It has the advantages of "one crop, two harvests, three highs and four savings". The development of ratoon rice is equivalent to expanding the area of ​​double-season rice planting in my country to a certain extent. However, the current ratoon rice planting area is still small. The main reasons are: although manual harvesting can effectively protect the rice stubble, the labor cost is high; mechanized harvesting will crush and damage a large amount of stubble left in the first season, resulting in low yield in the ratoon season and greatly reducing farmers' income. Therefore, to develop ratoon rice, it is necessary to solve the key bottleneck problem of mechanical harvesting crushing and damaging the first season rice stubble in ratoon rice production.

[0003] To address this issue, the current main approaches are to improve harvesting machinery and plan harvesting paths. However, harvesters are very complex and heavy machines (the weight of grains needs to be continuously increased during the harvesting process), making redesign or modification very difficult. In addition, since rice harvesters work in paddy fields with extremely harsh ground conditions, improving the design is a huge challenge. Using computer vision to avoid walking in the rice stubble in the field and replanning the harvesting path will result in secondary crushing due to insufficient recognition accuracy, exacerbating the problem of damage to the rice stubble caused by crushing. Summary of the invention

[0004] The technical problem solved by the present invention is to provide a device for straightening the rice stubble during mechanical harvesting and rolling of regenerated rice, so as to solve the problems in the above-mentioned background technology.

[0005] The technical problem solved by the present invention is achieved by adopting the following technical solutions:

[0006] A regenerated rice stubble straightening device for mechanically harvesting and rolling rice stubble comprises an upper straightening mechanism, an upper support reinforcing plate, a straightening transmission mechanism, a lower support reinforcing plate and a lower straightening mechanism; wherein the upper support reinforcing plate and the lower support reinforcing plate are welded to the straightening transmission mechanism, the upper straightening mechanism is fixed to the upper support reinforcing plate, the lower straightening mechanism is fixed to the lower support reinforcing plate, and the upper straightening mechanism and the lower straightening mechanism are respectively connected to the straightening transmission mechanism, and the specific structures of each part are as follows:

[0007] In the upper straightening mechanism, the upper support plate is fixed on the upper support reinforcement plate, the centralizer ejection guide rail is welded on the upper support plate, and a plurality of long studs for fixing the upper cover plate and the upper support plate are installed on the upper cover plate and the upper support plate to form an upper straightening cavity between the upper cover plate and the upper support plate, and the supporting circular tube is sleeved on the long studs located in the middle of the upper straightening cavity; the special-shaped centralizers are evenly distributed on the upper straightening chain row, and the upper straightening chain row is distributed in the middle of the upper straightening cavity, and the upper straightening chain row input shaft is connected to the straightening transmission mechanism; the arc-shaped transition ejection assembly for ejecting the special-shaped centralizer is installed on the upper cover plate, a driven assembly is installed at the lower end of the upper support plate, and a tooth claw recovery assembly is arranged on the side edge of the upper straightening cavity;

[0008] The structure of the lower layer righting mechanism is the same as that of the upper layer righting mechanism;

[0009] In the described straightening transmission mechanism, an upper driven bevel gear is installed at one end of the reversing gear power input shaft, and the other end of the reversing gear power input shaft is connected to the upper gear in the reversing gear group, and the lower gear in the reversing gear group is installed at one end of the upper chain row power input shaft, and the other end of the upper chain row power input shaft is connected to the upper straightening chain row; the lower driven bevel gear is installed at one end of the lower chain row power input shaft, and the other end of the lower chain row power input shaft is connected to the lower straightening chain row; and the upper driven bevel gear and the lower driven bevel gear are respectively meshed with the driving bevel gear, the driving bevel gear is arranged in the bevel gear fixing frame, and the reversing gear group is arranged in the reversing gear frame; one end of the reversing gear frame is welded to one end of the bevel gear fixing frame, and the other end of the reversing gear frame is welded to the upper support reinforcement plate; the lower support reinforcement plate is welded to the other end of the bevel gear fixing frame.

[0010] In the present invention, the upper support plate is provided with mounting holes for mounting the fixing mechanism of the straightening device.

[0011] In the present invention, a reserved hole for the upper righting chain input shaft to pass through is provided on the upper support plate, and the upper righting chain input shaft passes through the reserved hole on the upper support plate and is connected to the righting transmission mechanism.

[0012] In the present invention, the centralizer ejection guide rail is composed of two steel bars with a length of 200 mm, and the internal spacing of the steel bars is 20 mm.

[0013] In the present invention, the claw recovery assembly is composed of three rubber round tubes, which are sleeved on long studs located at the side edge of the upper straightening cavity, and the distance between adjacent rubber round tubes is 120 mm.

[0014] In the present invention, the cross-section of the special-shaped centralizer is L-shaped, and the interior of the special-shaped centralizer is hollowed out, and is fixed to the triangular chain plates of the upper centralizing chain row by a pin shaft.

[0015] In the present invention, the driven assembly includes a driven sprocket, a driven sprocket shaft and a driven sprocket shaft fixing block, the driven sprocket is installed on the driven sprocket shaft, the driven sprocket shaft is installed on the driven sprocket shaft fixing block through a bearing, the driven sprocket shaft fixing block is installed on the upper support plate and fastened by bolts.

[0016] In the present invention, the arc-shaped transition ejection assembly comprises an arc-shaped transition top plate and an arc-shaped fixed plate, the arc-shaped transition top plate is welded to the arc-shaped fixed plate, and the arc-shaped fixed plate is mounted on the upper cover plate.

[0017] In the present invention, power is transmitted through the driving bevel gear, driving the upper driven bevel gear and the lower driven bevel gear meshing therewith to rotate, and the upper driven bevel gear drives the reversing gear power input shaft to rotate, and transmits power to the reversing gear set, and the reversing gear set further drives the upper chain row power input shaft to operate, and the upper straightening chain row connected to the upper chain row power input shaft is forced to start operating, when the special-shaped centralizer installed on the upper straightening chain row moves to the arc-shaped transition ejection assembly, it is acted on by the ejection force of the arc-shaped transition ejection assembly, the special-shaped centralizer opens, and the straightening operation starts, until it completely passes through the centralizer and ejects the guide rail, the special-shaped centralizer is retracted, and the straightening operation ends; the lower driven bevel gear drives the lower chain row power input shaft to rotate, further drives the lower straightening chain row and the special-shaped centralizer installed on the lower straightening chain row to operate, the special-shaped centralizer opens, and the straightening operation starts, and cooperates with the special-shaped centralizer installed on the upper straightening chain row. Beneficial Effects

[0018] 1. The straightening transmission mechanism of the present invention adopts a frame to fix the relative position between the transmission bevel gears, which effectively reduces the phenomenon of bevel gears jumping due to impact and improves transmission stability;

[0019] 2. The cross-section of the special-shaped straightener in the present invention is L-shaped, and the top of the straightener can gather the rice stubble, so that the rolled rice stubble is easy to lift up, thereby improving the success rate of straightening, effectively improving the damaged morphology of the rolled rice stubble, promoting the self-repair of the rolled rice stubble, and improving the germination of axillary buds in the regeneration season;

[0020] 3. The arc-shaped transition ejector assembly of the present invention adopts an adjustable installation method, and the ejector tightness is adjusted by adding or removing gaskets on the supporting circular tube between the arc-shaped transition ejector assembly and the upper support plate;

[0021] 4. The present invention has a compact structure, is easy to install and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a right side view of a preferred embodiment of the present invention.

[0023] Figure 2 It is a reverse axonometric view of the upper straightening mechanism in a preferred embodiment of the present invention.

[0024] Figure 3 It is an isometric view of the upper righting mechanism in the preferred embodiment of the present invention.

[0025] Figure 4 It is an isometric view of the special-shaped centralizer in the preferred embodiment of the present invention.

[0026] Figure 5 It is an isometric view of the driven component in the preferred embodiment of the present invention.

[0027] Figure 6 It is an isometric view of the arc-shaped transition ejector assembly in the preferred embodiment of the present invention.

[0028] Figure 7 It is a front view of the righting transmission mechanism in a preferred embodiment of the present invention.

[0029] Figure 8 It is an isometric view of the righting transmission mechanism in the preferred embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below with reference to specific diagrams.

[0031] See also Figure 1 A regenerated rice mechanical harvesting and rolling rice stubble straightening device, comprising an upper straightening mechanism 1, an upper support reinforcing plate 2, a straightening transmission mechanism 3, a lower support reinforcing plate 4, and a lower straightening mechanism 5; wherein the upper support reinforcing plate 2 and the lower support reinforcing plate 4 are welded to the straightening transmission mechanism 3, the upper straightening mechanism 1 is fixed to the upper support reinforcing plate 2 by bolts, and the lower straightening mechanism 5 is fixed to the lower support reinforcing plate 4 by bolts;

[0032] like Figure 2 , 3 As shown, the upper layer straightening mechanism 1 comprises an upper layer support plate 11, a rubber connecting block 12, a special-shaped straightening device 13, an upper layer straightening chain row 14, a supporting circular tube 15, an arc-shaped transition ejection assembly 16, a straightening device ejection guide rail 17, a driven assembly 18, an upper layer cover plate 19 and a claw recovery assembly 110. The upper layer support plate 11 is fixed to the upper support reinforcement plate 2 by bolts, the straightening device ejection guide rail 17 is welded to the upper layer support plate 11, and the upper layer support plate 11 is provided with a mounting hole for installing a straightening device fixing mechanism.

[0033] A plurality of long studs for fixing the upper cover plate 19 and the upper support plate 11 are installed on the upper cover plate 19 and the upper support plate 11 to form an upper straightening cavity between the upper cover plate 19 and the upper support plate 11. The supporting circular tube 15 is sleeved on the long studs located in the middle of the upper straightening cavity. The rubber connecting block 12 is installed on the upper ends of the upper cover plate 19 and the upper support plate 11 to connect the upper cover plate 19 and the upper support plate 11. The inner diameter of the upper straightening cavity is 50 mm. ; The special-shaped centralizers 13 are evenly distributed on the upper-layer centralizing chain row 14, and the upper-layer centralizing chain row 14 is distributed in the middle of the upper-layer centralizing cavity. At the same time, the input shaft of the upper-layer centralizing chain row 14 passes through the reserved hole on the upper-layer support plate 11 to connect with the centralizing transmission mechanism 3; the arc-shaped transition ejection assembly 16 for ejecting the special-shaped centralizer 13 is installed on the upper-layer cover plate 19, and the driven assembly 18 is installed at the lower end of the upper-layer support plate 11, and the claw recovery assembly 110 is arranged on the side edge of the upper-layer centralizing cavity;

[0034] The upper support plate 11 is 5 mm thick and has a centralizing chain row mounting hole for mounting the upper centralizing chain row 14 and a driven sprocket shaft mounting hole for mounting the driven sprocket shaft 182;

[0035] The centralizer ejection guide rail 17 is composed of two steel bars with a length of 200 mm, the internal spacing of the steel bars is 20 mm, and one side of the steel bar is close to the side edge of the upper support plate 11 and is welded to the upper support plate 11;

[0036] The tooth claw recovery assembly 110 is composed of three rubber round tubes, which are sleeved on the long studs located at the side edge of the upper straightening cavity, and the distance between adjacent rubber round tubes is 120 mm; when the special-shaped centralizer 13 moves with the upper straightening chain row 14 to pass through the rubber connecting block 12, the special-shaped centralizer 13 is no longer attached to the upper straightening chain row 14 due to its own gravity, and further moves to the tooth claw recovery assembly 110, the special-shaped centralizer 13 collides with the rubber round tube, and is subjected to the collision rebound force generated by the rubber round tube, so that the special-shaped centralizer 13 is again tightly attached to the upper straightening chain row 14, thereby realizing the tooth claw recovery;

[0037] The supporting round tube 15 has two specifications of 47mm and 50mm. The supporting round tube 15 is sleeved on the long stud to support the arc-shaped transition ejection assembly 16 and the upper support plate 11, and the upper cover plate 19 and the upper support plate 11 respectively; the ejection tightness can be adjusted by adding or removing gaskets on the supporting round tube 15 between the arc-shaped transition ejection assembly 16 and the upper support plate 11;

[0038] like Figure 4 As shown, the cross-section of the special-shaped centralizer 13 is L-shaped, the interior of which is hollowed out, and is fixed to the triangular chain piece of the upper centralizing chain row 14 by a pin;

[0039] like Figure 5 As shown, the driven assembly 18 includes a driven sprocket 181, a driven sprocket shaft 182 and a driven sprocket shaft fixing block 183, the driven sprocket 181 is mounted on the driven sprocket shaft 182, the driven sprocket shaft 182 is mounted on the driven sprocket shaft fixing block 183 through a bearing, and the driven sprocket shaft fixing block 183 is mounted on the upper support plate 11 and fastened by bolts;

[0040] like Figure 6 As shown, the arc-shaped transition ejection assembly 16 includes an arc-shaped transition top plate 161 and an arc-shaped fixed plate 162. The arc-shaped transition top plate 161 is welded to the arc-shaped fixed plate 162, and the arc-shaped fixed plate 162 is mounted on the upper cover plate 19 by bolts.

[0041] The structure of the lower righting mechanism 5 is the same as that of the upper righting mechanism 1 and is fixed to the lower support reinforcement plate 4 by bolts;

[0042] like Figure 7 , 8 As shown, the straightening transmission mechanism 3 includes a lower chain row power input shaft 31, a bevel gear fixing frame 32, a lower driven bevel gear 33, a driving bevel gear 34, a cross coupling sleeve 35, an upper driven bevel gear 36, a reversing gear frame 37, an upper chain row power input shaft 38, a reversing gear set 39 and a reversing gear power input shaft 310, one end of the reversing gear power input shaft 310 is installed with an upper driven bevel gear 36, and the other end is connected to the upper gear in the reversing gear set 39, one end of the upper chain row power input shaft 38 is installed with a lower gear in the reversing gear set 39, and the other end of the upper chain row power input shaft 38 is connected to the upper straightening chain row 14; one end of the lower chain row power input shaft 31 is installed with a lower driven bevel gear 3 3, and the other end is connected to the lower straightening chain row; after the upper driven bevel gear 36 and the lower driven bevel gear 33 are respectively engaged with the driving bevel gear 34, their relative positions are fixed by the bevel gear fixing frame 32 and tightened by bolts; the upper gear and the lower gear in the reversing gear set 39 are engaged with each other and fixed in the reversing gear frame 37; one end of the reversing gear frame 37 is welded to the bevel gear fixing frame 32, and the other end is welded to the upper support reinforcement plate 2; the lower support reinforcement plate 4 is welded to the other end of the bevel gear fixing frame 32; one end of the cross coupling sleeve 35 is connected to the driving bevel gear 34, and the other end is connected to the reversing gear power input shaft 310 and the lower chain row power input shaft 31, and is fixed by bearings installed on the two shafts.

[0043] In this embodiment, power is transmitted through the driving bevel gear 34, driving the upper driven bevel gear 36 and the lower driven bevel gear 33 meshing therewith to rotate, and the upper driven bevel gear 36 drives the reversing gear power input shaft 310 to rotate, and transmits power to the reversing gear set 39, and the reversing gear set 39 further drives the upper chain row power input shaft 38 to operate, and the upper straightening chain row 14 connected to the upper chain row power input shaft 38 is forced to start operating, when the special-shaped straightening device 13 installed on the upper straightening chain row 14 moves to the arc transition ejection When the component 16 is moved, the special-shaped centralizer 13 is opened by the ejection force of the arc-shaped transition ejection component 16, and the straightening operation begins. When the special-shaped centralizer 13 completely passes through the centralizer ejection guide rail 17, it is retracted and the straightening operation ends. The lower driven bevel gear 33 drives the power input shaft 31 of the lower chain row to rotate, and further drives the lower straightening chain row and the special-shaped centralizer 13 installed on the lower straightening chain row to operate. The special-shaped centralizer 13 opens and starts the straightening operation, and cooperates with the special-shaped centralizer 13 installed on the upper straightening chain row 14.

Claims

1. A regenerated rice stubble straightening device for mechanically harvesting and rolling rice stubble, comprising an upper straightening mechanism, an upper support reinforcement plate, a straightening transmission mechanism, a lower support reinforcement plate and a lower straightening mechanism; characterized in that: The upper support reinforcement plate and the lower support reinforcement plate are welded to the righting transmission mechanism, the upper righting mechanism is fixed to the upper support reinforcement plate, the lower righting mechanism is fixed to the lower support reinforcement plate, and the upper righting mechanism and the lower righting mechanism are respectively connected to the righting transmission mechanism. The specific structures of each part are as follows: In the upper straightening mechanism, the upper support plate is provided with a mounting hole for installing the straightening device fixing mechanism and a reserved hole for the upper straightening chain row input shaft to pass through, the upper support plate is fixed on the upper support reinforcement plate, the straightening device ejection guide rail is welded on the upper support plate, and a plurality of long studs for fixing the upper cover plate and the upper support plate are installed on the upper cover plate and the upper support plate to form an upper straightening cavity between the upper cover plate and the upper support plate, and the supporting circular tube is sleeved on the long studs located in the middle of the upper straightening cavity; the special-shaped straightening devices are evenly distributed on the upper straightening chain row, and the upper straightening chain row is distributed in the middle of the upper straightening cavity. At the same time, the upper straightening chain row input shaft is connected to the straightening transmission mechanism; the arc-shaped transition ejection assembly for ejecting the special-shaped straightening device is installed on the upper cover plate, a driven assembly is installed at the lower end of the upper support plate, and a tooth claw recovery assembly is arranged on the side edge of the upper straightening cavity; The structure of the lower layer righting mechanism is the same as that of the upper layer righting mechanism; In the described straightening transmission mechanism, an upper driven bevel gear is installed at one end of the reversing gear power input shaft, and the other end is connected to the upper gear in the reversing gear set, the lower gear in the reversing gear is installed at one end of the upper chain row power input shaft, and the other end of the upper chain row power input shaft is connected to the upper straightening chain row; the lower driven bevel gear is installed at one end of the lower chain row power input shaft, and the other end of the lower chain row power input shaft is connected to the lower straightening chain row; and the upper driven bevel gear and the lower driven bevel gear are respectively meshed with the driving bevel gear, the driving bevel gear is arranged in the bevel gear fixing frame, and the reversing gear set is arranged in the reversing gear frame; and one end of the reversing gear frame is welded to one end of the bevel gear fixing frame, and the other end of the reversing gear frame is welded to the upper support reinforcement plate; the lower support reinforcement plate is welded to the other end of the bevel gear fixing frame.

2. The device for straightening rice stubble during mechanical harvesting and rolling of regenerated rice according to claim 1, characterized in that: The centralizer ejection guide rail is composed of two steel bars with a length of 200 mm, and the internal spacing of the steel bars is 20 mm.

3. The device for straightening rice stubble during mechanical harvesting and rolling of regenerated rice according to claim 1, characterized in that: The claw recovery assembly is composed of three rubber round tubes, which are sleeved on long studs located at the side edge of the upper straightening cavity, and the distance between adjacent rubber round tubes is 120 mm.

4. The device for straightening rice stubble during mechanical harvesting and rolling of regenerated rice according to claim 1, characterized in that: The cross-section of the special-shaped centralizer is L-shaped, and the interior of the special-shaped centralizer is hollowed out, and is fixed on the triangular chain piece of the upper centralizing chain row through a pin shaft.

5. The device for straightening rice stubble during mechanical harvesting and rolling of regenerated rice according to claim 1, characterized in that: The driven assembly comprises a driven sprocket, a driven sprocket shaft and a driven sprocket shaft fixing block, the driven sprocket is mounted on the driven sprocket shaft, the driven sprocket shaft is mounted on the driven sprocket shaft fixing block via a bearing, and the driven sprocket shaft fixing block is mounted on the upper support plate.

6. The device for straightening rice stubble during mechanical harvesting and rolling of regenerated rice according to claim 1, characterized in that: The arc-shaped transition ejection assembly comprises an arc-shaped transition top plate and an arc-shaped fixed plate. The arc-shaped transition top plate is welded to the arc-shaped fixed plate, and the arc-shaped fixed plate is installed on the upper cover plate.

7. A device for straightening rice stubble during mechanical harvesting and rolling of regenerated rice according to any one of claims 1 to 6, characterized in that: The power is transmitted through the driving bevel gear, driving the upper driven bevel gear and the lower driven bevel gear meshing therewith to rotate. The upper driven bevel gear drives the reversing gear power input shaft to rotate, and transmits the power to the reversing gear set. The reversing gear set further drives the upper chain row power input shaft to operate. The upper straightening chain row connected to the upper chain row power input shaft is subjected to force and starts to operate. When the special-shaped centralizer installed on the upper straightening chain row moves to the arc-shaped transition ejection assembly, the special-shaped centralizer is opened by the ejection force of the arc-shaped transition ejection assembly, and the straightening operation starts. When the guide rail is completely ejected through the centralizer, the special-shaped centralizer is retracted, and the straightening operation ends. The lower driven bevel gear drives the lower chain row power input shaft to rotate, further driving the lower straightening chain row and the special-shaped centralizer installed on the lower straightening chain row to operate. The special-shaped centralizer opens, starts the straightening operation, and cooperates with the special-shaped centralizer installed on the upper straightening chain row.

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