CN116784089A - Regenerated japonica rice harvester - Google Patents
Regenerated japonica rice harvester Download PDFInfo
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- CN116784089A CN116784089A CN202310234730.7A CN202310234730A CN116784089A CN 116784089 A CN116784089 A CN 116784089A CN 202310234730 A CN202310234730 A CN 202310234730A CN 116784089 A CN116784089 A CN 116784089A
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- 240000008467 Oryza sativa Japonica Group Species 0.000 title abstract description 8
- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 107
- 235000009566 rice Nutrition 0.000 claims abstract description 107
- 238000005520 cutting process Methods 0.000 claims abstract description 94
- 238000003306 harvesting Methods 0.000 claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims description 167
- 230000005540 biological transmission Effects 0.000 claims description 159
- 240000007594 Oryza sativa Species 0.000 claims description 103
- 240000002582 Oryza sativa Indica Group Species 0.000 claims description 54
- 235000013339 cereals Nutrition 0.000 claims description 47
- 238000004140 cleaning Methods 0.000 claims description 44
- 210000005069 ears Anatomy 0.000 claims description 19
- 230000033001 locomotion Effects 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 240000008042 Zea mays Species 0.000 claims 4
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims 4
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims 4
- 235000005822 corn Nutrition 0.000 claims 4
- 238000005096 rolling process Methods 0.000 abstract description 14
- 230000008929 regeneration Effects 0.000 abstract description 9
- 238000011069 regeneration method Methods 0.000 abstract description 9
- 230000004083 survival effect Effects 0.000 abstract description 4
- 241000209094 Oryza Species 0.000 abstract 4
- 239000010902 straw Substances 0.000 description 8
- 230000035784 germination Effects 0.000 description 7
- 238000011161 development Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 235000016709 nutrition Nutrition 0.000 description 4
- 230000035764 nutrition Effects 0.000 description 4
- 238000009340 sequential cropping Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000003337 fertilizer Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 3
- 244000025254 Cannabis sativa Species 0.000 description 2
- 208000025962 Crush injury Diseases 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229920000856 Amylose Polymers 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The invention discloses a regenerated japonica rice harvester which comprises a controller and a sensor, wherein a header oil cylinder is used for adjusting the height of a header from the ground, the sensor is arranged on the header oil cylinder and used for detecting the telescopic length of the header oil cylinder, a regenerated japonica rice harvesting module is arranged in the controller, and the height of a rice pile is 20-30 in the regenerated japonica rice harvesting module; the controller acquires sensor signals to control the header oil cylinder to adjust the height of the header from the ground according to the preset height parameter of the round-grained nonglutinous rice in the regenerated round-grained nonglutinous rice harvesting module. The invention is suitable for harvesting japonica rice varieties, has light weight of the whole machine, large width of a cutting table, less ground specific pressure of rubber tracks, low rolling loss rate of rice piles, and high survival rate and yield in regeneration seasons.
Description
Technical Field
The invention relates to the field of agricultural machinery, in particular to a regenerative indica rice harvester.
Background
The general plant height of indica rice is more than 1m, the stems are softer, the leaves are wide, the color is light green, and the sword is She Kaidu hours. The leaf has more fuzz and short fuzz scattered in the glume. Most of them are awnless or short, and the grains are slender and slightly flat, and the length is generally more than twice the width. The grains are easy to fall off. Is more resistant to moisture, heat and strong light, but not cold. The rice grain has high amylose content and hard gum, so the cooked rice is not sticky.
The regenerated rice is harvested for 2 times in one crop, namely, after the first season rice is harvested, the residual rice stake axillary buds are utilized for seedling emergence and spike growth, and then one rice crop mode of one season is harvested, so that the cost is saved and the efficiency is improved. In recent years, the ratooning rice is widely applied to middle and downstream provinces of the Yangtze river such as Sichuan, fujian, hubei, jiangxi, anhui, hunan and the like, the production benefit of the ratooning rice is improved by 93.75 percent and the yield and the casting ratio are improved by 12.65 percent compared with that of the ratooning rice in one season, and with the annual rise of labor cost, the national grain safety strategy is promoted, and the ratooning rice is cultivated and mechanically harvested into the future development direction. Among the constitutional factors of the yield of the regenerated rice, the effective spike number has larger influence on the yield of the regenerated rice; the harvester structure mainly affects the rolling proportion and the sprouting and spike forming of the rolling rice piles. The mechanical rolling is serious, the loss rate in the regeneration season is 40% -50%, the rice quality is reduced, and the like, and the method is a bottleneck for restricting the development of the regeneration rice in the present stage. Indica rice and japonica rice can be used as regenerated rice varieties, but the regenerated Ji Faya scions of the indica rice and the japonica rice are different in position, the germination of the regenerated indica rice is mainly concentrated in 2-3 sections of rice stems, the rice piles are high in ground clearance, the harvesting amount is relatively small, and the developed harvester is mainly characterized by reducing rolling, reducing instantaneous crush injury and improving the working efficiency. Therefore, development of a special regenerated indica rice harvesting method suitable for indica rice is urgently needed, and yield and operation efficiency of the regenerated season of the indica rice are improved.
Disclosure of Invention
In view of the above, the invention provides a regenerated indica rice harvester which is suitable for harvesting indica rice varieties, has light weight of the whole machine, large width of a header, high efficiency, reduced instantaneous crush injury, less ground specific pressure of rubber tracks, low rice pile rolling rate, high survival rate in regenerated seasons and high yield.
On one hand, the invention provides a regenerated indica rice harvester, which comprises an engine, a frame, a crawler travelling mechanism, a middle conveying groove and a header, wherein the engine is arranged on the frame, the crawler travelling mechanism is arranged below the frame, the middle conveying groove and the header are arranged in front of the frame, two ends of the middle conveying groove are respectively connected with the frame and the header, and two ends of a header oil cylinder are respectively connected with the frame and the header; the crawler travelling mechanism comprises a rubber crawler, and the depth of the inner side teeth of the rubber crawler is larger than that of the outer side teeth of the rubber crawler; the cutting table is made of aluminum alloy materials, the width of the rubber track is 200-260 mm, the width of the cutting table (2) is more than 2600mm, and the specific pressure of the rubber track in grounding is 20-30 Kpa.
In order to realize automatic and accurate control of the height of the rice piles within 31-40 cm, the height of the rice piles is smooth and consistent, roots and stems are cut and cut evenly, the axillary buds of the indica rice are promoted to grow neatly and consistently, and the survival rate and yield of the indica rice in a regeneration season are high. In a further technical scheme, the novel harvesting machine comprises a controller and a sensor, wherein the header oil cylinder is used for adjusting the height of the header from the ground, the sensor is arranged on the header oil cylinder and used for detecting the telescopic length of the header oil cylinder, a regenerated indica rice harvesting module is arranged in the controller, and the height of a rice pile is preset to be 31-40 cm in the regenerated indica rice harvesting module; and the controller acquires sensor signals to control the header oil cylinder to adjust the height of the header from the ground according to the preset rice pile height parameter in the indica rice harvesting module.
In a further technical scheme, a cutting table rotating shaft is arranged at the rear end of the cutting table, the cutting table rotating shaft is arranged on the frame, and the cutting table oil cylinder drives the cutting table to rotate around the cutting table rotating shaft to adjust the height of the cutting table from the ground; a header transmission shaft is arranged in the header rotating shaft, and the engine drives the header transmission shaft to rotate; the left and right crop dividers are respectively arranged at the front ends of the left and right side plates of the header, a header auger is arranged in the middle of the left and right side plates of the header, a first belt transmission device is arranged on the header, and the transmission ratio of the first belt transmission device is 2:1, a header transmission shaft drives a header auger to rotate through a first belt transmission device;
a reel bracket and a reel oil cylinder are arranged on the header, a reel is arranged on the reel bracket, and the reel is adjusted to leave the ground through the reel oil cylinder; install second belt drive and third belt drive on the header, second belt drive's drive ratio is 2:1, the transmission ratio of the third belt transmission device is 3:1, a cutting table transmission shaft drives a reel to rotate through a first belt transmission device, a second belt transmission device and a third belt transmission device in sequence, and the rotation direction of the reel is consistent with the rotation direction of a crawler travelling mechanism;
The cutting bench is provided with a cutting knife device, left shifting teeth, right shifting teeth and a cutting knife rocker mechanism, the cutting knife device is provided with a plurality of cutting knives, the cutting knife device, the left shifting teeth and the right shifting teeth are arranged at the front lower part of the cutting bench auger, the left shifting teeth and the right shifting teeth are respectively arranged at the left side and the right side of the cutting knife device, the shifting teeth of the left shifting teeth and the right shifting teeth are opposite in direction, the left shifting teeth and the right shifting teeth face the cutting bench auger, the cutting knife rocker mechanism comprises a cutting bench belt pulley, a first connecting rod and a rocking rod, the cutting bench belt pulley is connected with a cutting bench transmission shaft, the first connecting rod is connected with the cutting bench belt pulley, the rocking rod is connected with the cutting knife device, and the cutting bench transmission shaft drives the cutting knives, the left shifting teeth and the right shifting teeth to reciprocate in a linear manner through the cutting knife rocker mechanism.
In a further technical scheme, the cutting table auger comprises an auger cylinder, a telescopic deflector rod mechanism, an adjusting device, left auger blades and right auger blades; one end of the screw feeder cylinder is fixed, and the levelness of the screw feeder cylinder is adjusted by the other end of the screw feeder cylinder through an adjusting device; the left auger blade and the right auger blade are respectively arranged at the left end and the right end of the auger barrel, the spiral directions of the left auger blade and the right auger blade are opposite, and the gap H2 between the left auger blade and the cutting table bottom plate and the right auger blade is 10-14 mm; the left auger blade, the right auger blade, the left poking tooth and the right poking tooth are matched with each other to push the cut rice to the telescopic poking rod mechanism, and the telescopic poking rod mechanism grabs the rice continuously sent to the middle conveying groove at a certain speed;
The telescopic deflector rod mechanism is arranged in the auger barrel and is positioned between the left auger blade and the right auger blade; the telescopic shifting finger mechanism comprises two crank arms, an eccentric shaft and a telescopic shifting rod, wherein the two crank arms are rotatably connected with the auger cylinder, two ends of the eccentric shaft are connected with the two crank arms, the telescopic shifting rod is radially inserted into the auger cylinder and connected with the eccentric shaft, and the telescopic shifting rod can radially stretch relative to the auger cylinder; the axis of the eccentric shaft is offset towards the front of the axis of the auger barrel, so that the telescopic deflector rod extends out of the auger barrel when the front part of the auger barrel grabs rice, and retracts into the auger barrel when the rear part of the auger barrel, and a gap H1 between the telescopic deflector rod and the bottom plate of the cutting table is 5-8 mm;
the adjusting device comprises a sliding groove, a sliding block, a direction adjusting plate, an adjusting spring and an adjusting bolt, wherein the sliding block and the direction adjusting plate are arranged at the shaft end part of one crank arm, the sliding block is positioned in the sliding groove, the sliding groove is fixed on a side plate of the cutting table, the sliding block can move up and down along the sliding groove, the upper end of the sliding block is connected with the adjusting spring, the lower end of the sliding block is fixed on the sliding groove through the adjusting bolt, the levelness of the auger cylinder body is adjusted through the adjusting bolt, and a gap H1 between the telescopic deflector rod and the cutting table bottom plate is adjusted through the direction adjusting plate.
In a further technical scheme, the reel comprises a reel shaft, a reel disc, an eccentric disc, a first crank, a tooth-holding shaft and tooth-holding teeth, wherein the reel shaft is connected with a third belt transmission device, the reel disc is arranged at the left end and the right end of the reel shaft, the eccentric disc is arranged on the reel shaft, the tooth-holding teeth are arranged on the tooth-holding shaft, the tooth-holding shaft is arranged on the left reel disc and the right reel disc, and the two ends of the first crank are respectively connected with the tooth-holding shaft and the eccentric disc; the tooth is controlled by the eccentric disc and the first crank to move in parallel in a plane, so that the direction of the tooth is always unchanged; the ratio of the peripheral speed of the tooth to the harvesting advancing speed is greater than 1.
In a further technical scheme, the middle conveying trough comprises a flexible conveying belt and rake teeth, the rake teeth are uniformly distributed on the conveying belt, and a gap H3 between the bottom rake teeth and a bottom plate of the middle conveying trough is 5-10 mm.
In a further technical scheme, the threshing machine comprises a threshing mechanism, a re-threshing mechanism, a cleaning mechanism, a grain collecting auger, a grain collecting lifting auger, a re-threshing lifting auger, a cutting mechanism, a grain bin, a fourth belt transmission device, a first chain transmission device, a second chain transmission device, a third chain transmission device, a fourth chain transmission device, a fifth chain transmission device, a sixth chain transmission device and a seventh chain transmission device; the threshing mechanism and the re-threshing mechanism are positioned above the cleaning mechanism, the grain collecting auger is positioned below the cleaning mechanism, the re-threshing auger and the shredding mechanism are positioned in the same cavity, and the re-threshing auger is positioned below the shredding mechanism;
The middle conveying trough continuously conveys the rice to the threshing mechanism through the grabbing action of the rake teeth, and the rice is separated from the rice, the broken spike and the stems through the threshing mechanism; the rice sequentially passes through a cleaning mechanism, a grain collecting auger, a grain collecting lifting auger and a granary; the broken ears sequentially pass through a cleaning mechanism, a re-threshing auger, a re-threshing lifting auger and a re-threshing mechanism to separate out rice, broken ears and short stems; the stems sequentially pass through the cleaning mechanism and the shredding mechanism and are blown out of the machine;
the fourth belt transmission device is connected with the middle conveying groove and the threshing mechanism, the engine sequentially drives the middle conveying groove, the fourth belt transmission device and the threshing mechanism to rotate, and the transmission ratio of the fourth belt transmission device is 1:1.2; the threshing mechanism drives the cleaning mechanism to act through a first chain transmission device, and the transmission ratio of the first chain transmission device is 1:2.5; the threshing mechanism drives the grain collecting auger to rotate through a second chain transmission device, and the transmission ratio of the second chain transmission device is 1.25:1, a step of; the grain collecting auger drives the grain collecting lifting auger to rotate through a third chain transmission device, and the transmission ratio of the third chain transmission device is 1:1.2; the grain collecting auger drives the re-threshing auger to rotate through a fourth chain transmission device, and the transmission ratio of the fourth chain transmission device is 1:1, a step of; the repeated-threshing screw conveyor drives the repeated-threshing lifting screw conveyor to rotate through a fifth chain transmission device, and the transmission ratio of the fifth chain transmission device is 1:1.2; the threshing mechanism drives the re-threshing mechanism to rotate through a sixth chain transmission device, and the transmission ratio of the sixth chain transmission device is 1:1.5; the threshing mechanism drives the shredding mechanism to rotate through a seventh chain transmission device, and the transmission ratio of the seventh chain transmission device is 1:1.25.
In a further technical scheme, the threshing mechanism comprises a threshing cylinder and a concave screen; the threshing cylinder is positioned in the concave plate sieve, and the gap H4 between the concave plate sieve and the threshing cylinder is 5-10 mm; the threshing cylinder is provided with spike teeth which are spirally arranged on the circumferential surface of the threshing cylinder.
In a further technical scheme, the cleaning mechanism comprises a cleaning fan, a vibrating screen and a crank connecting rod mechanism, wherein the cleaning fan is arranged in front of the vibrating screen, and the crank connecting rod mechanism drives the vibrating screen to reciprocate to form vibration; the vibrating screen comprises an upper screen and a lower screen, the upper screen is positioned above the lower screen, the pore space of the upper screen is larger than that of the lower screen, triangular teeth are arranged on the upper screen, and sharp corners of the triangular teeth are pointed upwards and backwards; the crank connecting rod mechanism comprises a second crank and a second connecting rod, the second crank is connected with the second connecting rod, the second connecting rod is connected with the upper screen, and the second crank drives the upper screen and the lower screen to reciprocate through the second connecting rod to form vibration;
the threshing mechanism separates out rice and broken ears and stems, the rice and broken ears fall to an upper screen for shaking and pushing, the rice and broken ears fall to a lower screen for shaking and pushing, the rice falls to a collection Gu Jiaolong through the lower screen for shaking, the broken ears enter a re-threshing auger through the lower screen for pushing, the stems enter a shredding mechanism under the wind force of a pushing and cleaning fan, and the stems are blown out of the machine after being broken by the shredding mechanism.
In a further technical scheme, the threshing mechanism comprises a threshing cylinder and a threshing concave screen, wherein the threshing cylinder is positioned in the threshing concave screen, and a gap H5 between the threshing concave screen and the threshing cylinder is 5-10 mm; threshing blades are arranged on the rethreshing roller and spirally arranged on the circumferential surface of the rethreshing roller, and the rethreshing mechanism separates out rice and stems and falls to an upper sieve to shake and push.
In a further aspect, the track running gear comprises a rubber track, wherein the depth of the inner teeth of the rubber track is greater than the depth of the outer teeth of the rubber track.
The invention provides a regenerative indica rice harvester which has the following beneficial effects compared with the prior art:
1. the invention has light weight, large cutting table width, less ground pressure of rubber track, low rolling rate of rice piles, high survival rate in regeneration seasons and high yield.
2. Different heights of rice piles have direct influence on regeneration rate, seedling formation, spike formation and the like of regenerated spikes, and the lower the height of the rice piles is, the lower the effective regeneration spike number is, the spike grain number is increased, the fruiting rate is reduced, the thousand grain weight is reduced, and although the spike grain number is increased, the effective spike number is obviously reduced. The number of the available strong axillary buds on the low-pile-retention parent stems is correspondingly reduced, and the probability of available seedling promotion is obviously reduced; too high rice piles have more axillary buds on the reserved mother stems, but the rice pile roots absorb and supply nutrition insufficiently to support the nutrition supply requirement of multi-bud germination, so that more ears, less grains and reduced yield are caused. Meanwhile, the higher the node position of the rice pile is, the longer the node distance is, the sprouting time of each node position is prolonged, the larger the distance between the maturity stages is, the maturity consistency is poor, and the final yield is not higher. According to the characteristics of indica rice varieties, high-level rice piles are adopted, the harvesting amount is small, the height of the rice piles is 31-40 cm, harvesting can ensure the utilization of 3 node buds, and the highest yield is obtained. Meanwhile, the pitch of the base parts of the main spikes and the stalks of the first-season rice is relatively short, and the pitch of the base parts of the tillering spikes and the stalks is relatively short. The top advantages can be effectively reduced by removing the stalks above the 4 th node, the germination of the axillary buds at the low node is promoted, the spacing between the germinated nodes is shortened, and the maturity consistency degree of regenerated spikes is improved.
3. The controller is internally provided with a regenerated indica rice harvesting module, when the regenerated indica rice is harvested, a regenerated indica rice harvesting mode is selected, and the controller controls the header oil cylinder to adjust the height of the header from the ground according to the preset rice pile height parameter in the regenerated indica rice harvesting module, so that the height of the rice pile is automatically and accurately controlled, the height of the rice pile is smooth and consistent, the stump is cut and cut evenly, the growth and development of regenerated spike axillary buds are promoted to be orderly and consistent, and the yield of a regenerated season is improved.
4. The tooth shaft and the tooth shaft are controlled by the eccentric disc and the first crank to move in parallel in a plane, so that the directions of the tooth shaft and the tooth shaft are unchanged all the time, the phenomenon that the reel is used for picking grass when the grain spike is hit and lifted is reduced, the loss rate is reduced, the lodging rice is favorably inserted into and lifted, the cut stem is stably laid backwards, and the tooth shaft have the function of cleaning a cutting table. The transmission ratio of the first belt transmission is 2:1, the transmission ratio of the second belt transmission device is 2:1, the transmission ratio of the third belt transmission device is 3:1, the header transmission shaft sequentially passes through the first belt transmission device, the second belt transmission device and the third belt transmission device to drive the reel to rotate, so that the rotation direction of the reel is consistent with the rotation direction of a crawler of the crawler travelling mechanism, the ratio of the circumferential speed of the tooth of a rake to the harvesting advancing speed is more than 1, and the reel has the functions of supporting and pushing cut crops backwards.
5. Because indica rice stalks are softer, the harvesting amount is less, the conveying amount is less, in order to improve the conveying efficiency of a header auger and a middle conveying groove, the stalks are prevented from winding the header auger and the middle conveying groove, the gaps between a left auger blade, a right auger blade and a header bottom plate are designed to be 10-14 mm, the gaps between a telescopic deflector rod and the header bottom plate are designed to be 5-8 mm, and the gaps between bottom rake teeth and the middle conveying groove bottom plate are designed to be 5-10 mm. The left auger blade, the right auger blade, the left poking tooth and the right poking tooth are mutually matched to push the cut rice to the telescopic poking rod mechanism, the telescopic poking rod stretches out of the auger barrel when the front part of the auger barrel grabs the rice, and retracts into the auger barrel when the rear part of the auger barrel, and the telescopic poking rod mechanism grabs the rice continuously sent from source to the middle conveying groove at a certain speed. The adjusting device can also adjust the levelness of the auger cylinder and the gap between the telescopic deflector rod and the cutting table bottom plate.
6. The transmission system of the regenerated indica rice harvester is safe and reliable, has good stability and is suitable for harvesting the regenerated indica rice. Threshing, cleaning and conveying efficiency is high, after the cut straws are crushed by the cutting mechanism, the crushed straws are thrown back into the field, the crushed straws are small in size and can directly fall on soil after being thrown out of the cutting mechanism, the straws cannot be piled on rice piles to influence the germination rate of the rice piles, meanwhile, the crushed straws are easier to rot into organic fertilizers, the using amount of chemical fertilizers is reduced, and the yield of the regenerated seasons is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of a regenerative indica harvester according to the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a rear view of FIG. 1;
FIG. 4 is a schematic view of the header of FIG. 1;
FIG. 5 is a right side view of FIG. 4;
FIG. 6 is a left side view of FIG. 4;
FIG. 7 is a schematic perspective view of the telescopic toggle mechanism of FIG. 4;
FIG. 8 is a schematic diagram of the intermediate transfer tank of FIG. 1;
FIG. 9 is a schematic plan view of the telescopic trip mechanism of FIG. 4;
fig. 10 is a schematic view of the threshing mechanism and cleaning mechanism of fig. 1.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
The front, rear, left, right, upper and lower directions of the invention are determined based on the front, rear, left, right, upper and lower directions of the regenerated indica rice harvester; greater than or less than the inclusive number.
As shown in fig. 1, 2 and 3, the present invention preferably provides a indica rice harvester, which comprises a controller (not shown), an engine 11, a frame (not shown), a crawler belt 1, a middle conveying trough 3, a header 2, a threshing mechanism 4, a threshing mechanism 9, a cleaning mechanism 5, a grain collecting auger 6, a grain collecting lifting auger 12, a threshing auger 7, a threshing lifting auger 13, a shredding mechanism 8, a granary 10, a fourth belt transmission device (not shown), a first chain transmission device (not shown), a second chain transmission device (not shown), a third chain transmission device (not shown), a fourth chain transmission device (not shown), a fifth chain transmission device (not shown), a sixth chain transmission device (not shown), and a seventh chain transmission device (not shown). The crawler travel mechanism 1 comprises a rubber crawler 100, the depth of inner teeth 101 of the rubber crawler is greater than the depth of outer teeth 102 of the rubber crawler, and the outer teeth of the rubber crawler 100 are shallow. The header 2 is made of aluminum alloy materials, the width of the rubber track is 200-260 mm, the width of the header 2 is more than 2600mm, and the specific pressure of the rubber track in grounding is 20-30 Kpa.
The 4LZ-4.0 type regenerated indica rice harvester developed by the invention comprises: header breadth 2600 mm; the width of the rubber track plate is 260mm; the whole machine weight is 2700kg; the feeding amount is 4kg/s; granary volume 1 m; mating power 55 kW; infinitely variable speed; the actual measurement of the rolling rate of the straight running is less than 21 percent.
Rubber track jointThe ground specific pressure refers to the vertical load born by the unit area of the ground contact object. The vertical load that the rubber crawler 100 receives per unit ground contact area is referred to as the ground specific pressure of the rubber crawler 100. The expression is as follows:
wherein:-specific ground pressure of the rubber track, kpa;
g-gravity of the whole machine, KN;
b- -the ground width of the rubber track, m;
l-the grounding length of the rubber track, m.
The specific ground pressure of the rubber track is in direct proportion to the mass of the whole machine, and in inverse proportion to the ground width and the ground length of the rubber track. The header 2 is made of aluminum alloy materials, the width of the rubber track is reduced, the quality of the whole machine can be reduced, the ground specific pressure of the rubber track is reduced, the teeth on the outer side of the rubber track 100 are shallow, and the sprouting and spike forming of the rolling rice piles are improved. In addition, the number of the rolling rice piles is proportional to the width of the rubber crawler 100, the number of the rolling rice piles is negative to the width of the header 2, the width of the header 2 is large, the grounding width of the rubber crawler is small, the rolling quantity is reduced, the rolling rate is reduced, and the actual-measurement straight rolling rate is less than 21%. The engine 11 is arranged on a frame, the crawler travelling mechanism 1 is arranged below the frame, the middle conveying groove 3 and the cutting table 2 are arranged in front of the frame, two ends of the middle conveying groove 3 are respectively connected with the frame and the cutting table 2, and two ends of the cutting table oil cylinder 23 are respectively connected with the frame and the cutting table 2. The threshing mechanism 4 and the re-threshing mechanism 9 are positioned above the cleaning mechanism 5, the grain collecting auger 6 is positioned below the cleaning mechanism 5, the re-threshing auger 7 and the shredding mechanism 8 are positioned in the same cavity, the re-threshing auger 7 is positioned below the shredding mechanism 8, and the shredding mechanism 8 is arranged behind the frame.
The working principle of the regenerated indica rice harvester of the invention is as follows: the regenerated indica rice harvester is driven by the crawler travelling mechanism 1 to advance, the left and right crop dividers 33 divide rice into a ready-to-cut region and a to-be-cut region, the rice entering the to-be-cut region is cut by the reel 26 to the position of the cutter 270, and then is pushed down onto the cutting table 2 by the reel 26, and the reel 26 needs to be lifted to 1/3 of the straw cutting part. The auger cylinder 320 on the header 2 grabs the rice continuously sent from source to the middle conveying trough 3 at a certain speed; the middle conveying trough 3 continuously conveys the rice to the threshing mechanism 4, the rice is separated by the threshing mechanism 4 to form rice, broken ears and stems, and the rice, the broken ears and the stems fall onto the cleaning mechanism 5. The rice sequentially passes through a cleaning mechanism 5, a grain collecting auger 6, a grain collecting lifting auger 12 and a granary 10; the broken ears sequentially pass through a cleaning mechanism 5, a re-threshing screw feeder 7, a re-threshing lifting screw feeder 13 and a re-threshing mechanism 9 to separate out rice, broken ears and short stems. The re-threshing mechanism 9 separates out rice, broken ears and short stems, the rice, broken ears and short stems fall onto the cleaning mechanism 5, and the stems pass through the cleaning mechanism 5 and the shredding mechanism 8 in sequence and are blown out of the machine.
The working transmission system of the regenerated indica rice harvester for threshing, cleaning and the like is as follows: the fourth belt transmission device is connected with the middle conveying groove 3 and the threshing mechanism 4, the engine 11 sequentially drives the middle conveying groove 3, the fourth belt transmission device and the threshing mechanism 4 to rotate, and the transmission ratio of the fourth belt transmission device is 1:1.2, the rotating speed of the threshing mechanism 4 is improved, and the rotating speed of the threshing mechanism 4 is ensured to achieve the effect of rapid threshing.
The threshing mechanism 4 drives the cleaning fan 52 of the cleaning mechanism 5 and the second crank 53 of the crank-link mechanism to rotate through the first chain transmission device, and the crank-link mechanism drives the vibrating screen to reciprocate to form vibration. The transmission ratio of the first chain transmission device is 1:2.5, the rotating speed of the second crank 53 of the cleaning fan 52 and the crank connecting rod mechanism is larger than that of the threshing mechanism 4, the rotating speed of the second crank 53 of the cleaning fan 52 and the crank connecting rod mechanism is further improved, the speed of the cleaning fan 52 is ensured to reach the suspension speed of the short straws, and the reciprocating speed of the vibrating screen is improved to form violent vibration.
The threshing mechanism 4 drives the grain collecting auger 6 to rotate through a second chain transmission device, and the transmission ratio of the second chain transmission device is 1.25:1, the rotation speed of the grain collecting auger 6 is lower than that of the threshing mechanism 4, so that the rotation speed of the grain collecting auger 6 is matched with the threshing of the threshing mechanism 4. The grain collecting auger 6 drives the grain collecting lifting auger 12 to rotate through a third chain transmission device, and the transmission ratio of the third chain transmission device is 1:1.2, the rotation speed of the grain collecting lifting screw conveyor 12 is larger than that of the grain collecting screw conveyor 6, so that blockage is avoided.
The grain collecting auger 6 drives the re-threshing auger 7 to rotate through a fourth chain transmission device, and the transmission ratio of the fourth chain transmission device is 1:1, the rotation speed of the grain collecting auger 6 is the same as that of the re-threshing auger 7. The re-threshing screw feeder 7 drives the re-threshing lifting screw feeder 13 to rotate through a fifth chain transmission device, and the transmission ratio of the fifth chain transmission device is 1:1.2, the rotating speed of the re-threshing lifting screw 13 is made to be larger than that of the re-threshing screw 7, so that the blockage is avoided. The threshing mechanism 4 drives the re-threshing mechanism 9 to rotate through a sixth chain transmission device, and the transmission ratio of the sixth chain transmission device is 1:1.5, the rotating speed of the re-threshing mechanism 9 is higher than that of the threshing mechanism 4, so that the threshing blade 92 can reach the cutting speed of rice ears under the condition of smaller radius of the re-threshing roller 90, and the broken ears threshing is ensured. The threshing mechanism 4 drives the shredding mechanism 8 to rotate through a seventh chain transmission device, and the transmission ratio of the seventh chain transmission device is 1:1.25, the rotating speed of the shredding mechanism 8 is made to be larger than that of the threshing mechanism 4, the rotating speed of the shredding mechanism 8 is increased, and the requirement of long straw shredding is met.
As shown in fig. 4, 5, 6, 7 and 9, a header rotating shaft 20 is arranged at the rear end of the header 2, the header rotating shaft 20 is arranged on a frame, and the header oil cylinder 23 drives the header 2 to rotate around the header rotating shaft 20 to adjust the ground clearance of the header 2. The height of the header 2 from the ground is the height of the reserved rice piles after harvesting the indica rice. The sensor is arranged on the header oil cylinder 23 and is used for detecting the telescopic length of the header oil cylinder 23, a regenerated indica rice harvesting module is arranged in the controller, and a rice pile height of 31-40 cm is preset in the regenerated indica rice harvesting module; the controller acquires sensor signals according to preset rice pile height parameters in the indica rice harvesting module to control the header oil cylinder 23 to adjust the ground clearance of the header 2. The invention adopts high-level rice piles and automatically and accurately controls the height of the rice piles, the height of the rice piles is 31-40 cm, the height of the rice piles is smooth and consistent, the roots and the roots are cut in a flat and even way, and the growth and the development of regenerated spike axillary buds are promoted to be orderly and consistent.
Different heights of rice piles have direct influence on regeneration rate, seedling formation, spike formation and the like of regenerated spikes, and the lower the height of the rice piles is, the lower the effective regeneration spike number is, the spike grain number is increased, the fruiting rate is reduced, the thousand grain weight is reduced, and although the spike grain number is increased, the effective spike number is obviously reduced. The number of the available strong axillary buds on the low-pile-retention parent stems is correspondingly reduced, and the probability of available seedling promotion is obviously reduced; too high rice piles have more axillary buds on the reserved mother stems, but the rice pile roots absorb and supply nutrition insufficiently to support the nutrition supply requirement of multi-bud germination, so that more ears, less grains and reduced yield are caused. Meanwhile, the higher the node position of the rice pile is, the longer the node distance is, the sprouting time of each node position is prolonged, the larger the distance between the maturity stages is, the maturity consistency is poor, and the final yield is not higher. According to the characteristics of indica rice varieties, high-level rice piles are adopted, the harvesting amount is small, the height of the rice piles is 31-40 cm, harvesting can ensure the utilization of 3 node buds, and the highest yield is obtained. Meanwhile, the pitch of the base parts of the main spikes and the stalks of the first-season rice is relatively short, and the pitch of the base parts of the tillering spikes and the stalks is relatively short. The top advantages can be effectively reduced by removing the stalks above the 4 th node, the germination of the axillary buds at the low node is promoted, the spacing between the germinated nodes is shortened, and the maturity consistency degree of regenerated spikes is improved.
A header transmission shaft 21 is arranged in the header rotating shaft 20, and the engine 11 drives the header transmission shaft 21 to rotate; the front ends of the left and right side plates of the header 2 are respectively provided with a left and right divider 23, and the left and right divider 33 divides the rice into a ready-to-cut area and a to-be-cut area. A header auger 32 is arranged in the middle of the left side plate and the right side plate of the header 2, a first belt transmission device 29 is arranged on the header 2, and the transmission ratio of the first belt transmission device 29 is 2:1, the engine 11 drives the header screw conveyor 32 to rotate through the header transmission shaft 21 and the first belt transmission device 29 in sequence, and the rotating speed of the header transmission shaft 21 is twice that of the header screw conveyor 32.
A reel bracket 24 and a reel oil cylinder 25 are arranged on the header 2, a reel 26 is arranged on the reel bracket 24, and the height of the reel 26 from the ground is adjusted through the reel oil cylinder 25; a second belt transmission device 30 and a third belt transmission device 31 are arranged on the header 2, and the transmission ratio of the second belt transmission device (30) is 2:1, the third belt drive 31 has a gear ratio of 3:1, the engine 11 drives the reel 26 to rotate through the header transmission shaft 21, the first belt transmission device 29, the second belt transmission device 30 and the third belt transmission device 31 in sequence, and the rotating speed of the header transmission shaft 21 is 12 times that of the reel 26. The rotation direction of the reel 26 is ensured to be consistent with the rotation direction of the crawler belt 100 of the crawler belt travelling mechanism 1, and the ratio of the circumferential speed of the rake tooth 264 to the harvesting advancing speed is more than 1, so that the reel 26 has the functions of supporting and pushing the cut crops backwards. The speed of the header auger 32, the reel 26, the cutter 270, the left poking tooth 271 and the right poking tooth 272 are optimally matched, and the harvesting efficiency of the regenerated indica rice and the working stability of the regenerated indica rice harvester are ensured.
The cutting table 2 is provided with a cutting knife device 27, left shifting teeth 271, right shifting teeth 272 and a cutting knife rocker mechanism 28, the cutting knife device 27 is provided with a plurality of cutting knives 270, the cutting knife device 27, the left shifting teeth 271 and the right shifting teeth 272 are arranged at the front lower part of the cutting table auger 32, the left shifting teeth 271 and the right shifting teeth 272 are respectively arranged at the left side and the right side of the cutting knife device 27, the shifting teeth 271 and the right shifting teeth 272 are opposite in shifting directions, the left shifting teeth 271 and the right shifting teeth 272 face the cutting table auger 32, the cutting knife rocker mechanism 28 comprises a cutting table belt pulley 22, a first connecting rod 280 and a rocking rod 281, the cutting table belt pulley 22 is connected with a cutting table transmission shaft 21, the first connecting rod 280 is connected with the cutting table belt pulley 22, the rocking rod 281 is connected with the cutting knife device 27, and the cutting table transmission shaft 21 drives the cutting knives 270, the left shifting teeth 271 and the right shifting teeth 272 to reciprocate in a linear motion through the rocking rod mechanism 28 to realize cutting.
The header auger 32 comprises an auger cylinder 320, a telescopic deflector rod mechanism 323, an adjusting device 324, a left auger blade 321 and a right auger blade 322; one end of the auger cylinder 320 is fixed, and the levelness of the auger cylinder 320 is adjusted by the other end of the auger cylinder 320 through an adjusting device 324; the left auger blade 321 and the right auger blade 322 are respectively arranged at the left end and the right end of the auger cylinder 320, the spiral directions of the left auger blade 321 and the right auger blade 322 are opposite, and the gap H2 between the left auger blade 321, the right auger blade 322 and the header bottom plate 34 is 14mm; left auger blade 321, right auger blade 322, left plectrum 271, right plectrum 272 mutually support and push the rice that cuts down to flexible driving lever mechanism 323 department, and flexible driving lever mechanism 323 snatchs the rice that comes from the source constantly and gives middle conveyer trough 3 with certain speed.
As shown in fig. 7 and 9, a telescopic deflector rod mechanism 323 is installed inside the auger cylinder 320, between the left auger blade 321 and the right auger blade 322; the telescopic finger pulling mechanism 323 comprises two crank arms 3232, an eccentric shaft 3230 and a telescopic pulling rod 3231, wherein the two crank arms 3232 are rotatably connected with the auger cylinder 320, two ends of the eccentric shaft 3230 are connected with the two crank arms 3232, the telescopic pulling rod 3231 is radially inserted into the auger cylinder 320 and connected with the eccentric shaft 3230, and the telescopic pulling rod 3231 can radially stretch relative to the auger cylinder 320; the axis Q2 of the eccentric shaft is offset forward of the axis Q1 of the auger cylinder. The two crank arms 3232 and the eccentric shaft 3230 are fixed and do not rotate, the auger cylinder 320 rotates, so that the telescopic deflector rod 3231 extends out of the auger cylinder 320 when the front part of the auger cylinder 320 grabs rice, and the maximum grabbing of materials is ensured; the screw cylinder 320 is retracted into the screw cylinder 320 when the screw cylinder 320 is at the rear, and the screw cylinder 320 is retracted as much as possible when the rear is engaged with the intermediate conveying device 3, so as not to extend out of the outer surface of the screw cylinder 320, thereby preventing the material from being carried back. Because the indica rice stalks are softer, the harvesting amount is small, and the push is not easy, in order to improve the conveying efficiency of the header auger and the middle conveying groove and prevent the stalks from winding the header auger and the middle conveying groove, the gap H2 between the left auger blade 321 and the right auger blade 322 and the header bottom plate 34 is designed to be 14mm; the gap H1 between the telescopic deflector rod 3231 and the header base 34 is designed to be 8mm.
To adjust the levelness of the auger cylinder 320, the clearance H1 between the telescoping shift lever 3231 and the header base 34. One end of the auger cylinder 320 is fixed, and the other end is connected with an adjusting device 324. The adjusting device 324 includes a slide groove 3240, a slide block 3242, a direction adjusting plate 3243, an adjusting spring 3244, and an adjusting bolt 3241, wherein the slide block 3242 and the direction adjusting plate 3243 are mounted at the shaft end of one of the crank arms 3232, the slide block 3242 is positioned in the slide groove 3240, the slide groove 3240 is fixed on the side plate of the header 2, the slide block 3242 can move up and down along the slide groove 3240, the upper end of the slide block 3242 is connected with the adjusting spring 3244, and the lower end of the slide block 3242 is fixed on the slide groove 3240 through the adjusting bolt 3241. After the bolt 3241 is loosened, the sliding block 3242 can move up and down relative to the sliding groove 3240, so that the other end of the auger cylinder 320 moves up and down, and levelness adjustment of the auger cylinder 320 is achieved. The rotation direction adjustment plate 3243 rotates the crank arm 3232 and the eccentric shaft 3230, and changes the direction in which the axis Q2 of the eccentric shaft is offset forward of the axis Q1 of the auger cylinder, thereby adjusting the gap H1 between the telescopic deflector 3231 and the header base 34.
In order to keep the direction of the tooth 264 unchanged all the time, the grass picking phenomenon of the reel 26 when the grain spike is hit and lifted is reduced, the loss rate is reduced, the lodged rice is inserted and lifted, the cut stems are stably laid backwards, and the tooth shaft 263 and the tooth 264 have the function of cleaning a cutting table. The reel 26 adopts an eccentric reel, the reel 26 comprises a reel shaft 265, a reel 260, an eccentric disc 261, a first crank 262, a tooth-holding shaft 263 and tooth-holding teeth 264, the reel shaft 265 is connected with a third belt transmission device 31, the reel 260 is arranged at the left end and the right end of the reel shaft 265, the eccentric disc 261 is arranged on the reel shaft 265, the tooth-holding teeth 264 are arranged on the tooth-holding shaft 263, the tooth-holding shaft 263 is arranged on the left reel shaft and the right reel shaft 260, and the two ends of the first crank 262 are respectively connected with the tooth-holding shaft 263 and the eccentric disc 261; the tooth 264 is controlled by the eccentric disc 261 and the first crank 262 to move in parallel in a plane, so that the tooth shaft 263 and the tooth 264 are controlled by the eccentric disc 261 and the first crank 262 to move in parallel in a plane, and the direction of the tooth 264 is unchanged all the time.
As shown in fig. 8, since the indica rice stalks are soft, the harvesting amount is small, the conveying amount is small, and in order to improve the pushing capacity of the middle conveying trough 3, the middle conveying trough 3 comprises a flexible conveying belt 300 and rake teeth 301, the rake teeth 301 are uniformly distributed on the conveying belt 300, and a gap H3 between the bottom rake teeth 301 and the bottom plate of the middle conveying trough 3 is 7mm.
As shown in FIG. 10, the indica rice is soft in stalks, small in harvesting amount, small in conveying amount and easy to shed grains, so that threshing efficiency of the indica rice is improved. The threshing mechanism 4 comprises a threshing cylinder 40 and a concave screen 41; the threshing cylinder 40 is positioned in the concave plate sieve 41, and the gap H4 between the concave plate sieve 41 and the threshing cylinder 40 is 10mm; the threshing cylinder 40 is provided with spike teeth 42, and the spike teeth 42 are spirally arranged on the circumferential surface of the threshing cylinder 40. The threshing mechanism 9 comprises a threshing cylinder 90 and a threshing concave screen 91, the threshing cylinder 90 is positioned in the threshing concave screen 91, and a gap H5 between the threshing concave screen 91 and the threshing cylinder 90 is 10mm; threshing blades 92 are arranged on the re-threshing roller 90, the threshing blades 92 are arranged on the circumferential surface of the re-threshing roller 90 in a spiral manner, and the re-threshing mechanism 9 separates out rice and stems and falls to the upper sieve 50 for shaking and pushing. The radius of the re-threshing roller 90 is smaller than that of the threshing roller 40, and the rotating speed of the re-threshing mechanism 9 is larger than that of the threshing mechanism 4, so that the threshing blade 92 can reach the cutting speed of rice ears under the condition that the radius of the re-threshing roller 90 is smaller, and broken-ear threshing is ensured.
The cleaning mechanism 5 comprises a cleaning fan 52, a vibrating screen and a crank connecting rod mechanism, wherein the cleaning fan 52 is arranged in front of the vibrating screen, and the crank connecting rod mechanism drives the vibrating screen to reciprocate to form vibration; the vibrating screen comprises an upper screen 50 and a lower screen 51, wherein the upper screen 50 is positioned above the lower screen 51, the holes of the upper screen 50 are larger than those of the lower screen 51, triangular teeth are arranged on the upper screen 50, and sharp corners of the triangular teeth are directed upwards and backwards; the crank-link mechanism comprises a second crank 53 and a second link 54, the second crank 53 is connected with the second link 54, the second link 54 is connected with the upper screen 50, and the second crank 53 drives the upper screen 50 and the lower screen 51 to reciprocate through the second link 54 to form vibration. The cleaning fan 52 blows the crushed stems of the shredding mechanism 8 out of the machine, the crushed stems are thrown back into the field, the crushed stems are small in size, the crushed stems can directly fall on soil after being thrown out of the shredding mechanism, the crushed stems cannot be piled on rice piles to influence the germination rate of the rice piles, meanwhile, the crushed stems are easier to rot into organic fertilizer, the using amount of chemical fertilizer is reduced, and the yield of the indica rice is improved.
The techniques not described above are common general knowledge to a person skilled in the art. The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. The regenerated indica rice harvester is characterized by comprising an engine (11), a frame, a crawler travelling mechanism (1), a middle conveying groove (3) and a header (2), wherein the engine (11) is arranged on the frame, the crawler travelling mechanism (1) is arranged below the frame, the middle conveying groove (3) and the header (2) are arranged in front of the frame, two ends of the middle conveying groove (3) are respectively connected with the frame and the header (2), and two ends of a header oil cylinder (23) are respectively connected with the frame and the header (2); the crawler travelling mechanism (1) comprises a rubber crawler (100), wherein the depth of an inner tooth (101) of the rubber crawler is greater than that of an outer tooth (102) of the rubber crawler; the cutting table (2) is made of aluminum alloy materials, the width of the rubber track (100) is 200-260 mm, the width of the cutting table (2) is more than 2600mm, and the specific pressure of the rubber track in grounding is 20-30 Kpa.
2. The indica rice harvester according to claim 1, comprising a controller and a sensor, wherein the header cylinder (23) is used for adjusting the ground clearance of the header (2), the sensor is arranged on the header cylinder (23), the sensor is used for detecting the telescopic length of the header cylinder (23), a indica rice harvesting module is arranged in the controller, and the height of a rice pile is preset to be 31-40 cm in the indica rice harvesting module; the controller acquires sensor signals to control the header oil cylinder (23) to adjust the ground leaving height of the header (2) according to the preset rice pile height parameter in the indica rice harvesting module.
3. The indica rice harvester according to claim 2, characterized in that a header rotating shaft (20) is arranged at the rear end of the header (2), the header rotating shaft (20) is arranged on the frame, and the header oil cylinder (23) drives the header (2) to rotate around the header rotating shaft (20) to adjust the ground clearance of the header (2); a header transmission shaft (21) is arranged in the header rotating shaft (20), and the engine (11) drives the header transmission shaft (21) to rotate; the cutting table is characterized in that left and right crop dividers (23) are respectively arranged at the front ends of left and right side plates of the cutting table (2), a cutting table auger (32) is arranged in the middle of the left and right side plates of the cutting table (2), a first belt transmission device (29) is arranged on the cutting table (2), and the transmission ratio of the first belt transmission device (29) is 2:1, a header transmission shaft (21) drives a header auger (32) to rotate through a first belt transmission device (29);
a reel bracket (24) and a reel oil cylinder (25) are arranged on the header (2), a reel (26) is arranged on the reel bracket (24), and the reel oil cylinder (25) is used for adjusting the ground-leaving height of the reel (26); a second belt transmission device (30) and a third belt transmission device (31) are arranged on the cutting table (2), and the transmission ratio of the second belt transmission device (30) is 2:1, the transmission ratio of the third belt transmission device (31) is 3:1, a header transmission shaft (21) drives a reel (26) to rotate sequentially through a first belt transmission device (29), a second belt transmission device (30) and a third belt transmission device (31), and the rotation direction of the reel (26) is consistent with the rotation direction of a crawler travelling mechanism (1);
Install cutting knife device (27), left side is dialled tooth (271), right side is dialled tooth (272), cutting knife rocker mechanism (28) on cutting knife device (2), install a plurality of cutting knives (270) on cutting knife device (27), cutting knife device (27) and left side are dialled tooth (271) and right side and are dialled tooth (272) and install in cutting knife device (27) left and right sides respectively, left side is dialled tooth (271) and right side and is dialled tooth (272) and dial tooth opposite direction, left side is dialled tooth (271) and right side and is dialled tooth (272) towards cutting knife auger (32), cutting knife rocker mechanism (28) are including cutting knife pulley (22), first connecting rod (280), rocker (281), cutting knife pulley (22) are connected with cutting knife transmission shaft (21), first connecting rod (280) are connected with first connecting rod (280), cutting knife device (27) are connected with cutting knife device (281), left side is dialled tooth (271) and right side is dialled tooth (272), cutting knife transmission shaft (21) are dialled tooth (21) and reciprocating motion through rocker (270).
4. A machine according to claim 3, characterized in that the header auger (32) comprises an auger cylinder (320), a telescopic deflector rod mechanism (323), an adjusting device (324), a left auger blade (321), a right auger blade (322); one end of the screw feeder cylinder (320) is fixed, and the levelness of the screw feeder cylinder (320) is adjusted by the other end of the screw feeder cylinder (320) through an adjusting device (324); the left auger blade (321) and the right auger blade (322) are respectively arranged at the left end and the right end of the auger cylinder (320), the spiral directions of the left auger blade (321) and the right auger blade (322) are opposite, and a gap H2 between the left auger blade (321) and the right auger blade (322) and the cutting table bottom plate (34) is 10-14 mm; the left auger blade (321), the right auger blade (322), the left poking tooth (271) and the right poking tooth (272) are matched with each other to push the cut rice to the telescopic poking rod mechanism (323), and the telescopic poking rod mechanism (323) grabs the rice continuously sent from source to the middle conveying groove (3) at a certain speed;
The telescopic deflector rod mechanism (323) is arranged in the auger barrel (320) and is positioned between the left auger blade (321) and the right auger blade (322); the telescopic poking mechanism (323) comprises two crank arms (3232), an eccentric shaft (3230) and a telescopic poking rod (3231), the two crank arms (3232) are rotatably connected with the auger cylinder (320), two ends of the eccentric shaft (3230) are connected with the two crank arms (3232), the telescopic poking rod (3231) is radially inserted into the auger cylinder (320) to be connected with the eccentric shaft (3230), and the telescopic poking rod (3231) can radially stretch relative to the auger cylinder (320); the axis (Q2) of the eccentric shaft is offset to the front of the axis (Q1) of the auger barrel, so that the telescopic deflector rod (3231) extends out of the auger barrel (320) when the front part of the auger barrel (320) grabs rice, and retracts into the auger barrel (320) when the rear part of the auger barrel (320) is located, and a gap H1 between the telescopic deflector rod (3231) and the cutting table bottom plate (34) is 5-8 mm;
the adjusting device (324) comprises a sliding groove (3240), a sliding block (3242), a direction adjusting plate (3243), an adjusting spring (3244) and an adjusting bolt (3241), wherein the sliding block (3242) and the direction adjusting plate (3243) are arranged at the end part of one shaft of the crank arms (3232), the sliding block (3242) is arranged in the sliding groove (3240), the sliding groove (3240) is fixed on a side plate of the cutting table (2), the sliding block (3242) can move up and down along the sliding groove (3240), the upper end of the sliding block (3242) is connected with the adjusting spring (3244), the lower end of the sliding block (3242) is fixed on the sliding groove (3240) through the adjusting bolt (3241), the levelness of the auger cylinder (320) is adjusted through the adjusting bolt (3241), and a gap H1 between the telescopic deflector rod (3231) and the cutting table bottom plate (34) is adjusted through the direction adjusting plate (3243).
5. The indica rice harvester according to claim 4, characterized in that the reel (26) comprises a reel shaft (265), a reel (260), an eccentric disc (261), a first crank (262), a reel shaft (263) and reel teeth (264), the reel shaft (265) is connected with the third belt transmission device (31), the reel (260) is arranged at the left end and the right end of the reel shaft (265), the eccentric disc (261) is arranged on the reel shaft (265), the reel teeth (264) are arranged on the reel shafts (263), the reel shafts (263) are arranged on the left reel shaft and the right reel shaft (260), and the two ends of the first crank (262) are respectively connected with the reel shafts (263) and the eccentric disc (261); the tooth (264) is controlled by the eccentric disc (261) and the first crank (262) to move in parallel in a plane, so that the direction of the tooth (264) is unchanged all the time; the ratio of the peripheral speed of the tooth (264) to the harvesting advance speed is greater than 1.
6. The indica rice harvester according to claim 5, characterized in that the intermediate conveying trough (3) comprises a flexible conveying belt (300) and rake teeth (301), the rake teeth (301) are uniformly distributed on the conveying belt (300), and a gap H3 between the bottom rake teeth (301) and the bottom plate of the intermediate conveying trough (3) is 5-10 mm.
7. The indica rice harvester according to claim 6, characterized in that it comprises threshing means (4), re-threshing means (9), cleaning means (5), grain-collecting auger (6), grain-collecting lifting auger (12), re-threshing auger (7), re-threshing lifting auger (13), shredding means (8), grain bin (10), fourth belt drive, first chain drive, second chain drive, third chain drive, fourth chain drive, fifth chain drive, sixth chain drive, seventh chain drive; the threshing mechanism (4) and the re-threshing mechanism (9) are positioned above the cleaning mechanism (5), the grain collecting auger (6) is positioned below the cleaning mechanism (5), the re-threshing auger (7) and the shredding mechanism (8) are positioned in the same cavity, and the re-threshing auger (7) is positioned below the shredding mechanism (8);
the middle conveying groove (3) continuously conveys the rice to the threshing mechanism (4) through the grabbing action of the rake teeth (301), and the rice is separated from the rice, the broken spike and the stems through the threshing mechanism (4); the paddy sequentially passes through a cleaning mechanism (5), a grain collecting auger (6), a grain collecting lifting auger (12) and a granary (10); the broken ears sequentially pass through a cleaning mechanism (5), a re-threshing auger (7), a re-threshing lifting auger (13) and a re-threshing mechanism (9) to separate out rice, broken ears and short stems; the stems sequentially pass through a cleaning mechanism (5) and a shredding mechanism (8) and are blown out of the machine;
The fourth belt transmission device is connected with the middle conveying groove (3) and the threshing mechanism (4), the engine (11) sequentially drives the middle conveying groove (3), the fourth belt transmission device and the threshing mechanism (4) to rotate, and the transmission ratio of the fourth belt transmission device is 1:1.2; the threshing mechanism (4) drives the cleaning mechanism (5) to act through a first chain transmission device, and the transmission ratio of the first chain transmission device is 1:2.5; the threshing mechanism (4) drives the grain collecting auger (6) to rotate through a second chain transmission device, and the transmission ratio of the second chain transmission device is 1.25:1, a step of; the grain collecting auger (6) drives the grain collecting lifting auger (12) to rotate through a third chain transmission device, and the transmission ratio of the third chain transmission device is 1:1.2; the grain collecting auger (6) drives the re-threshing auger (7) to rotate through a fourth chain transmission device, and the transmission ratio of the fourth chain transmission device is 1:1, a step of; the re-threshing screw conveyor (7) drives the re-threshing lifting screw conveyor (13) to rotate through a fifth chain transmission device, and the transmission ratio of the fifth chain transmission device is 1:1.2; the threshing mechanism (4) drives the re-threshing mechanism (9) to rotate through a sixth chain transmission device, and the transmission ratio of the sixth chain transmission device is 1:1.5; the threshing mechanism (4) drives the shredding mechanism (8) to rotate through a seventh chain transmission device, and the transmission ratio of the seventh chain transmission device is 1:1.25.
8. The machine according to claim 7, characterized in that the threshing mechanism (4) comprises a threshing cylinder (40) and a concave screen (41); the threshing cylinder (40) is positioned in the concave plate sieve (41), and the gap H4 between the concave plate sieve (41) and the threshing cylinder (40) is 5-10 mm; the threshing cylinder (40) is provided with spike teeth (42), and the spike teeth (42) are spirally arranged on the circumferential surface of the threshing cylinder (40).
9. The indica rice harvester according to claim 8, characterized in that the cleaning mechanism (5) comprises a cleaning fan (52), a vibrating screen and a crank-link mechanism, wherein the cleaning fan (52) is arranged in front of the vibrating screen, and the crank-link mechanism drives the vibrating screen to reciprocate to form vibration; the vibrating screen comprises an upper screen (50) and a lower screen (51), wherein the upper screen (50) is positioned above the lower screen (51), the holes of the upper screen (50) are larger than those of the lower screen (51), triangular teeth are arranged on the upper screen (50), and sharp corners of the triangular teeth point to the upper rear side; the crank connecting rod mechanism comprises a second crank (53) and a second connecting rod (54), the second crank (53) is connected with the second connecting rod (54), the second connecting rod (54) is connected with the upper screen (50), and the second crank (53) drives the upper screen (50) and the lower screen (51) to reciprocate through the second connecting rod (54) to form vibration;
Threshing mechanism (4) separates out corn and broken ear and stem and falls to upper screen (50) shake and propelling movement, corn and broken ear fall to sieve (51) shake and propelling movement down, corn shakes through sieve (51) down and falls into collection corn screw feeder (6), broken ear is through sieve (51) propelling movement entering rethreshing screw feeder (7) down, the stem gets into shredding mechanism (8) through pushing and under the wind-force effect of cleaning fan (52), the stem is outside by the blowout machine after shredding mechanism (8) breakage.
10. The indica rice harvester according to claim 9, characterized in that the threshing mechanism (9) comprises a threshing cylinder (90) and a threshing concave screen (91), the threshing cylinder (90) is positioned in the threshing concave screen (91), and the gap H5 between the threshing concave screen (91) and the threshing cylinder (90) is 5-10 mm; threshing blades (92) are arranged on the threshing cylinder (90), the threshing blades (92) are spirally arranged on the circumferential surface of the threshing cylinder (90), and the threshing mechanism (9) separates out rice and stems and falls to the upper sieve (50) for shaking and pushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310234730.7A CN116784089A (en) | 2023-03-13 | 2023-03-13 | Regenerated japonica rice harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310234730.7A CN116784089A (en) | 2023-03-13 | 2023-03-13 | Regenerated japonica rice harvester |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117242978A (en) * | 2023-11-17 | 2023-12-19 | 山西农业大学 | Double-chain tooth type grain combine harvester header |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117242978A (en) * | 2023-11-17 | 2023-12-19 | 山西农业大学 | Double-chain tooth type grain combine harvester header |
| CN117242978B (en) * | 2023-11-17 | 2024-01-26 | 山西农业大学 | Double-chain tooth type grain combine harvester header |
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