Agricultural unit shuttle-type chassis and ratooning rice harvester capable of orderly discharging grass with agricultural unit shuttle-type chassis
Through shuttle chassis and orderly grass-coating design, the problems of harvester rolling and weed debris coverage are solved, and zero rolling and orderly grass-coating are achieved, which improves the operating performance of the recycled rice harvester and the rice stubble growth environment.
Patent Information
- Application Number
- CN202510697166.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-28
- Publication Date
- 2025-07-11
AI Technical Summary
When existing harvesters harvest regenerated rice, the track width exceeds the line spacing width, resulting in a high rolling rate, and straw and weeds emitted from the debris silo and cleaning equipment cover the rice stubble in disorder, affecting the operating performance and rice stubble growth.
The shuttle chassis design is adopted, and the tracks are divided into two groups and installed side by side, leaving the rice piles through the gap, and zero rolling turns are achieved through rotary support. Combined with an orderly grass-cooling channel and a pressing roller, weeds are discharged into the row spacing space to avoid covering the rice piles.
Zero-rolling harvesting is achieved, reducing the rolling rate, avoiding weeds and debris covering the rice piles, and improving the working performance and the rice stubble growth environment.
Smart Images
Figure CN120283537A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of agricultural machinery, and more specifically, to a farm machine group with a shuttle chassis and a ratooning rice harvester having orderly straw discharging thereof. Background Art
[0002] When harvesting ratooning rice with a harvester, since the width of the crawler exceeds the row width, a rolling rate of 40% will occur. To solve this problem, the prior art usually adopts a special narrow crawler, the bandwidth of which is less than the plant row width, so as to avoid rolling, and further widen the cutting table relative to the original cutting width.
[0003] Although this reduces the rolling coefficient, during operation, the ground pressure of the whole machine will increase by 50%, seriously affecting the passing performance, and even getting stuck in the mud too deep to operate. Especially when turning around and backing up, the number of repeated forward and backward movements results in more than 80% of rolling.
[0004] In addition, in the prior art, the short straw discharged from the threshing bin of the harvester and the weed debris discharged from the cleaning device are all discharged disorderly and completely cover the rice stubble, which needs to be picked up, is time-consuming and laborious, and rolling occurs again.
[0005] Therefore, it is an urgent problem for those skilled in the art to provide a farm machine group with a shuttle chassis and a ratooning rice harvester having orderly straw discharging thereof to reduce rolling. Summary of the Invention
[0006] In view of this, the present invention provides a farm machine group with a shuttle chassis and a ratooning rice harvester having orderly straw discharging thereof, and the straight-line and turning-around rolling rates during the first-season harvesting of ratooning rice are nearly zero.
[0007] In order to achieve the above object, the present invention adopts the following technical solutions:
[0008] A farm machine group with a shuttle chassis includes a chassis and a plurality of crawlers. The plurality of crawlers are divided into two groups and are installed side by side on opposite sides of the chassis, and adjacent two crawlers in the same group are arranged at intervals to form a space for rice stubble to pass through.
[0009] By adopting the above technical solutions, the beneficial effects of the present invention are:
[0010] The crawler divides the wide crawler into two halves according to the rice row spacing, and a gap for the rice stubble to pass through is left between the two crawlers, which not only maintains the ground pressure of the original crawler, but also does not roll the rice stubble due to the bandwidth exceeding the row spacing, achieving the effect of zero rolling.
[0011] Further, each of the crawlers includes a driving device and a crawler body. A plurality of the driving devices are installed in two groups side by side on opposite sides of the chassis, and two adjacent driving devices in the same group are arranged at intervals; a plurality of the crawler bodies are respectively sleeved on the plurality of driving devices, and two adjacent crawler bodies on the same side are distributed at intervals.
[0012] Further, the width of the crawler body is 70-80% of the row spacing of the ratoon rice.
[0013] Further, the driving device includes a hydraulic motor reducer, a driving wheel, a plurality of supporting wheels and a tensioning wheel. The hydraulic motor reducer is installed on the chassis; the driving wheel is installed on the output shaft of the hydraulic motor reducer; a plurality of the supporting wheels are installed at the bottom of the chassis through a supporting beam; the tensioning wheel is installed on the chassis and on the opposite side of the driving wheel; the crawler body is sleeved on the driving wheel, the plurality of supporting wheels and the tensioning wheel.
[0014] Further, it further includes a slewing bearing. The slewing bearing is installed at the center of the upper end of the chassis; the harvester assembly is installed on the slewing bearing.
[0015] The beneficial effect of adopting the above further technical solution is that when turning around, the chassis remains stationary, and the harvester assembly can be turned around through the slewing bearing for reversing operation, solving the problem of the whole machine turning around and rolling over the rice stubbles.
[0016] Further, the slewing bearing is an external tooth type slewing bearing.
[0017] A ratoon rice harvester includes a harvesting assembly and the agricultural machine group with a shuttle type chassis as described above. The harvesting assembly includes a harvesting component, a threshing component, a cleaning mechanism and a hopper which are sequentially installed on the chassis from front to back and are sequentially connected and communicated. The discharge channel outlet of the threshing component is aligned with the row spacing space formed between the two rice stubbles on the leftmost side, and the impurity channel outlet of the cleaning mechanism is aligned with the row spacing space formed between the two rice stubbles on the rightmost side.
[0018] By adopting the above technical solutions, the beneficial effects of the present invention are:
[0019] The straw discharged from the discharge channel outlet and the impurities discharged from the impurity channel outlet are discharged into the row spacing space, avoiding the straw and impurities covering the rice stubbles and avoiding harm to the growth of the rice stubbles.
[0020] Further, it further includes a plurality of straw pressing rollers. The plurality of straw pressing rollers are all installed on the chassis and on both sides of the hopper, and each straw pressing roller is on the same horizontal line as the row spacing space.
[0021] The beneficial effects of adopting the above further technical solution are that the grass pressing rollers press the weeds into the mud, and the discharged weeds will not cover the rice stubbles, avoiding harm to the growth of the rice stubbles.
[0022] Further, the harvesting assembly includes a harvesting hopper, a rice raking assembly, a cutting knife and an auger assembly. The harvesting hopper has an opening facing forward and is installed at the front end of the chassis. An outlet is provided at the rear end of the harvesting hopper; the rice raking assembly is rotatably connected to the harvesting hopper; the cutting knife is installed at the lower edge of the harvesting hopper; the auger assembly is rotatably installed in the harvesting hopper to convey the ratoon rice to the outlet; the threshing assembly includes a threshing bin, a conveying roller and a threshing assembly. The threshing bin is horizontally installed on the chassis, and the straw discharge channel is connected and communicated with the threshing bin; a discharge port is provided on the threshing bin, and a feeding port corresponding to the outlet is provided on the threshing bin. The feeding port and the outlet are connected and communicated through a conveying pipe, and the conveying roller is rotatably connected in the conveying pipe for conveying the ratoon rice at the outlet into the threshing bin.
[0023] Further, the width of the row spacing space is 25 cm or 30 cm. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.
[0025] Figure 1 The drawings are the overall structural schematic diagram of an agricultural machine set with a shuttle chassis provided by the present invention;
[0026] Figure 2 The drawings are the structural schematic diagram of the driving device provided by the present invention;
[0027] Figure 3 The drawings are the top view of an agricultural machine set with a shuttle chassis provided by the present invention;
[0028] Figure 4 The drawings are the structural schematic diagram of the driving device from another perspective provided by the present invention;
[0029] Figure 5 The drawings are the overall structural schematic diagram of a ratoon rice harvester provided by the present invention
[0030] Figure 6 The drawings are the overall structural schematic diagram of a ratoon rice harvester from another perspective provided by the present invention;
[0031] Figure 7 The accompanying drawing is a schematic structural diagram of the spatial position relationship between the grass pressing roller and the row spacing provided by the present invention;
[0032] Figure 8 The accompanying drawing is a steering and turning walking route map of a ratooning rice harvester provided by the present invention. Detailed implementation manners
[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0034] As Figure 1-4 shown, the embodiment of the present invention discloses an agricultural machine group with a shuttle chassis, which includes a chassis 1 and a plurality of crawlers 2. The plurality of crawlers 2 are divided into two groups and installed side by side on opposite sides of the chassis 1, and adjacent two crawlers 2 in the same group are arranged at intervals to form a space for the rice stubble to pass through. In this embodiment, the number of crawlers 2 is 4, divided into two groups, that is, each group consists of two crawlers 2. The crawler 2 of the present invention divides the wide crawler into two halves according to the row spacing of the rice and leaves a gap for the rice stubble to pass through between the two crawlers 2, which not only maintains the ground pressure of the original crawler but also does not crush the rice stubble due to the bandwidth exceeding the row spacing, achieving the effect of zero crushing.
[0035] Specifically, each crawler 2 includes a driving device 21 and a crawler body 22. The plurality of driving devices 21 are divided into two groups and installed side by side on opposite sides of the chassis 1, and adjacent two driving devices 21 in the same group are arranged at intervals; the plurality of crawler bodies 22 are respectively sleeved on the plurality of driving devices 21, and adjacent two crawler bodies 22 on the same side are spaced apart.
[0036] Specifically, the width of the crawler body 22 is 70-80% of the row spacing of the ratooning rice. In this embodiment, the row spacing of the ratooning rice is 25 cm, the width of the crawler body 22 is 18 cm, and there is a 7 cm lateral spacing between the two crawler bodies 22, which meets the passing of the rice stubble diameter.
[0037] Specifically, the driving device 21 includes a hydraulic motor reducer 211, a driving wheel 212, a plurality of idler wheels 213 and a tensioning wheel 214. The hydraulic motor reducer 211 is installed on the chassis 1; the driving wheel 212 is installed on the output shaft of the hydraulic motor reducer 211; the plurality of idler wheels 213 are installed on the bottom of the chassis 1 through a support beam 215; the tensioning wheel 214 is installed on the chassis 1 and on the opposite side of the driving wheel 212; the crawler body 22 is sleeved on the driving wheel 212, the plurality of idler wheels 213 and the tensioning wheel 214.
[0038] To further optimize the technical solution of the present invention, it further includes a slewing bearing 3, and the slewing bearing 3 is installed at the center of the upper end of the chassis 1; the harvester assembly is installed on the slewing bearing 3. In this way, when turning around, the chassis remains stationary, and the harvester assembly can be rotated by the slewing bearing 3 to change the operation direction, solving the problem that the whole machine runs over the rice stubbles when turning around.
[0039] Specifically, the slewing bearing 3 is an external gear type slewing bearing, that is, the outer ring of the slewing bearing 3 is a large gear. When an external driving device (such as a motor or a hydraulic motor) drives the small gear to rotate, the small gear meshes with the large gear, thereby driving the relative rotation of the inner ring and the outer ring, and then driving the harvester assembly fixed on the outer ring to rotate. When the operation reaches the end of the field, the chassis can remain stationary, and the harvester assembly on the slewing bearing can rotate 180 degrees to realize a U-turn and repeatedly walk for operation without running over the rice stubbles during the journey.
[0040] As Figure 5-8 shown, the embodiment of the present invention also discloses a ratooning rice harvester, which includes a harvesting assembly and the agricultural machine group with a shuttle chassis as above. The harvesting assembly includes a harvesting component 4, a threshing component 5, a cleaning mechanism 6 and a hopper 7 that are sequentially installed on the chassis 1 from front to back and are sequentially connected and communicated. The outlet of the straw discharge channel 51 of the threshing component 5 is aligned with the row space formed between the two leftmost rice stubbles 9, and the outlet of the impurity channel 61 of the cleaning mechanism 6 is aligned with the row space formed between the two rightmost rice stubbles 9. The straw discharged from the outlet of the straw discharge channel and the impurities discharged from the outlet of the impurity channel of the present invention are discharged into the row space, avoiding the straw and impurities covering the rice stubbles 9 and avoiding harm to the growth of the rice stubbles 9.
[0041] To further optimize the technical solution of the present invention, it further includes a plurality of straw pressing rollers 8. The plurality of straw pressing rollers 8 are all installed on the chassis 1 and are located on both sides of the hopper 7, and each straw pressing roller 8 is on the same horizontal line as the row space. The straw pressing rollers 8 press the straw and impurities into the mud, and the discharged straw and impurities will not cover the rice stubbles 9, avoiding harm to the growth of the rice stubbles 9.
[0042] Specifically, the harvesting assembly 4 includes a harvesting hopper, a rice raking assembly, a cutting knife, and an auger assembly. The harvesting hopper has an opening facing forward and is installed at the front end of the chassis 1. The rear end of the harvesting hopper is provided with a discharge port. The rice raking assembly is rotatably connected to the harvesting hopper and is used to rake the ratoon rice into the harvesting hopper. The cutting knife is installed at the lower edge of the harvesting hopper. The auger assembly is rotatably installed in the harvesting hopper to convey the ratoon rice to the discharge port. The threshing assembly 5 includes a threshing bin, a conveying roller, and a threshing assembly. The threshing bin is horizontally installed on the chassis 1. The straw discharge channel 51 is connected and communicated with the threshing bin for discharging straw and weeds. The threshing bin is provided with a discharge port. The threshed panicles are lifted into the movable sieve of the cleaning mechanism 6 along with fine debris. The threshing bin is provided with a feed port corresponding to the discharge port. The feed port and the discharge port are connected and communicated through a conveying pipe. The conveying roller is rotatably connected in the conveying pipe and is used to convey the ratoon rice at the discharge port into the threshing bin. The cleaning mechanism 6 includes a movable sieve and a blower. The movable sieve is responsible for separating heavy impurities such as stones and soil clods in the crops through screening, while the blower blows light impurities such as leaves and stalks into the impurity channel 61 for discharge.
[0043] Specifically, the width of the row spacing space is 25 cm or 30 cm, which is sufficient to store the discharged straw and weeds.
[0044] To further optimize the technical solution of the present invention and reduce rolling, the traveling mode of the ratoon rice harvester in this embodiment is coordinated with the traveling mode of the transplanter. The transplanter starts working from the middle first, leaving one or two working widths around the field ridge, and then works sequentially along the length direction of the field block. It is very convenient to turn around. When the middle is fully planted, it circles around the field for one or two laps, and after the operation is completed, it exits the field block, that is, the mode of first in the middle and then on the sides; the center distance between the crawlers of the ratoon rice harvester should be equal to the rice seedling row spacing or a multiple of the row spacing, and the width of the crawler should be less than the row spacing. First, it travels and works along the reserved working width. After harvesting one lap, an empty panicle area appears. Then, it harvests the middle panicles in sequence, that is, first on the sides and then in the middle; it goes straight in sequence along the original transplanter route. When the first row of harvesting enters the empty panicle area, it stops advancing, retreats about five meters along the original route, and then obliquely advances at a 45-degree angle to the second row. When it reaches the second row of panicles, it adjusts the direction to harvest, and quickly enters the second empty panicle area. At this time, it stops the action of the harvesting assembly, and the harvesting assembly rotates 180 degrees and starts the reverse walking of the second row, and linearly harvests to the empty panicle area on the opposite side of the field ridge, thus avoiding the chassis from repeatedly reversing and advancing. It only needs to move forward and backward in a stacked manner and obliquely advance and straighten to change the direction and turn around. Through tests, the area of the rice stubble crushed during turning is only less than 2 square meters, while the crushed area of the existing harvester reaches 5 square meters, and the crushing rate is reduced by 70%.
[0045] In the present specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For the relevant parts, reference can be made to the description in the method section.
[0046] The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A farm machine set with a shuttle chassis, characterized in that, It includes a chassis and multiple crawler belts. The multiple crawler belts are installed in two groups side by side on opposite sides of the chassis, and adjacent two crawler belts in the same group are spaced apart to form a space for the rice stubble to pass through.
2. The shuttle chassis driven by an agricultural machine set according to claim 1, characterized in that, Each crawler belt includes a driving device and a crawler body. The multiple driving devices are installed in two groups side by side on opposite sides of the chassis, and adjacent two driving devices in the same group are spaced apart; the multiple crawler bodies are respectively sleeved on the multiple driving devices, and adjacent two crawler bodies on the same side are spaced apart.
3. The agricultural machine group with a shuttle chassis according to claim 2, characterized in that, The width of the crawler body is 70-80% of the row spacing of the ratooning rice.
4. A farm machine group with a shuttle chassis according to claim 2, characterized in that The driving device includes a hydraulic motor reducer, a driving wheel, multiple idler wheels and a tensioning wheel. The hydraulic motor reducer is installed on the chassis; the driving wheel is installed on the output shaft of the hydraulic motor reducer; the multiple idler wheels are installed on the bottom of the chassis through a support beam; the tensioning wheel is installed on the chassis and on the side opposite to the driving wheel; the crawler body is sleeved on the driving wheel, the multiple idler wheels and the tensioning wheel.
5. A farm machine set with a shuttle chassis according to claim 1, characterized in that, It also includes a slewing bearing. The slewing bearing is installed at the center of the upper end of the chassis; the harvester assembly is installed on the slewing bearing.
6. The agricultural machine group with a shuttle chassis according to claim 5, characterized in that, The slewing bearing is an external tooth type slewing bearing.
7. A ratooning rice harvester, characterized in that, It includes a harvesting assembly and the agricultural machine group with a shuttle chassis as described in any one of claims 1-6. The harvesting assembly includes a harvesting component, a threshing component, a cleaning mechanism and a hopper which are installed on the chassis in sequence from front to back and are connected and communicated in sequence. The outlet of the straw discharge channel of the threshing component is aligned with the row spacing space formed between the two leftmost rice stubbles, and the outlet of the impurity channel of the cleaning mechanism is aligned with the row spacing space formed between the two rightmost rice stubbles.
8. A ratooning rice harvester according to claim 7, characterized in that, It also includes multiple straw pressing rollers. The multiple straw pressing rollers are all installed on the chassis and on both sides of the hopper, and each straw pressing roller is on the same horizontal line as the row spacing space.
9. A ratooning rice harvester according to claim 7, characterized in that, The harvesting component includes a harvesting hopper, a raking component, a cutting knife and an auger component. The harvesting hopper has an opening facing forward and is installed at the front end of the chassis. An outlet is provided at the rear end of the harvesting hopper; the raking component is rotatably connected to the harvesting hopper; the cutting knife is installed on the lower edge of the harvesting hopper; the auger component is rotatably installed in the harvesting hopper to convey the ratooning rice to the outlet; the threshing component includes a threshing bin, a conveying roller and a threshing component. The threshing bin is installed horizontally on the chassis, and the straw discharge channel is connected and communicated with the threshing bin; a discharge port is provided on the threshing bin, an inlet corresponding to the outlet is provided on the threshing bin, the inlet and the outlet are connected and communicated through a conveying pipe, and the conveying roller is rotatably connected in the conveying pipe to convey the ratooning rice at the outlet to the inside of the threshing bin.
10. A ratooning rice harvester according to claim 7, characterized in that, The width of the row spacing space is 25 cm or 30 cm.