CN217011676U - Sowing depth control mechanism - Google Patents
Sowing depth control mechanism Download PDFInfo
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- CN217011676U CN217011676U CN202220301270.6U CN202220301270U CN217011676U CN 217011676 U CN217011676 U CN 217011676U CN 202220301270 U CN202220301270 U CN 202220301270U CN 217011676 U CN217011676 U CN 217011676U
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Abstract
The utility model discloses a sowing depth control mechanism, which belongs to the technical field of agricultural machinery and is arranged on a multifunctional sowing machine, wherein the sowing depth control mechanism comprises a soil amount distribution mechanism, the soil amount distribution mechanism comprises a soil inlet baffle, the soil inlet baffle is a rectangular plate, and the soil inlet baffle is arranged between a power shaft of a secondary soil crushing rotary cutter group and a power shaft of a rotary tillage cutter group; the soil lifted by overturning the rotary tillage cutter set is prevented from entering the inclination angle of the secondary soil crushing rotary cutter set through adjustment, so that the distribution of the soil lifted after the soil is broken by the rotary tillage cutter set is adjusted. The utility model discloses a sowing depth control mechanism, which realizes accurate control of sowing depth from different angles of adjusting distribution of total raised soil, changing soil entering a secondary soil crushing channel, changing soil of a seed bed and the like according to the characteristics that the total raised soil after a rotary tillage cutter set breaks the soil is certain and the soil covering amount determines the sowing depth after pressing, and the like.
Description
Technical Field
The utility model relates to the technical field of agricultural machinery, in particular to a sowing depth control mechanism.
Background
The sowing depth control is one of the important conditions for realizing the wheat precision sowing and is also the basic guarantee for cultivating strong seedlings and capturing high yield. The main stem and tillering are the main ways of high-yield cultivation of wheat, the sowing is too deep, the seedling emergence is slow, the leaves are narrow and thin, a single seedling is unique, the tillering is late, the scion is few, and the high yield is difficult to be seized; the propagation is deep and proper, the breeding characteristics of wheat can be fully exerted, low-level breeding before winter is promoted to be developed quickly, and the earning rate is improved. Generally, the sowing depth is required to be 2-4 cm, and the soil needs to be compacted in time after sowing so as to reduce the volatilization loss of soil moisture, ensure that wheat grains are tightly contacted with the soil and ensure that the whole seedlings are sowed once.
However, the existing wheat seeder mainly controls the seeding depth through the depth of a furrow opener, and due to the fluctuation of topography and the large fluctuation of the seeding depth caused by insufficiently crushed straws, the seeding depth consistency is poor, so that the seedling emergence time, the tillering difference are large, the strong seedling rate is low, and the wheat yield is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a sowing depth control mechanism which can improve the wheat yield by accurately controlling the sowing depth and solve the problem of poor sowing depth consistency in the existing wheat sowing process.
The utility model provides a sowing depth control mechanism which is arranged on a multifunctional sowing machine, wherein the multifunctional sowing machine comprises a rotary tillage cutter set and a secondary soil crushing rotary cutter set, the rotary tillage cutter set comprises a rotary tillage cutter set power shaft, the secondary soil crushing rotary cutter set comprises a secondary soil crushing rotary cutter set power shaft, the sowing depth control mechanism comprises a soil amount distribution mechanism, the soil amount distribution mechanism comprises a soil inlet baffle, the soil inlet baffle is a rectangular plate, and the soil inlet baffle is arranged between the secondary soil crushing rotary cutter set power shaft and the rotary tillage cutter set power shaft; the soil raised by overturning the rotary tillage cutter group is prevented from entering the inclination angle of the secondary soil crushing rotary cutter group through adjustment, so that the distribution of the raised soil after the soil is broken by the rotary tillage cutter group is adjusted.
Preferably, the multifunctional seeder comprises a frame, a soil retaining fence is arranged below the front end of the frame, and the soil retaining fence is a soil retaining structure which is surrounded by the rear part and the upper part surrounded by the bottom plate, the rear baffle plate, the left side plate and the right side plate and is opened in the front and the lower part; the both ends of advancing native baffle set up respectively in the left side board with the right side board, just advance the left end of native baffle and be fixed in between rotary tillage knife tackle power shaft hole and the rotatory sword group power shaft of secondary hack on the medial surface of left side board, the right-hand member of advancing the native baffle is fixed in between rotary tillage knife tackle power shaft hole and the rotatory sword group power shaft of secondary hack on the medial surface of right side board.
Preferably, the soil quantity distribution mechanism further comprises two soil inlet baffle adjusting rods, the soil inlet baffle adjusting rods are telescopic rod pieces with adjustable lengths, the two soil inlet baffle adjusting rods are respectively arranged on two sides of the rear baffle, the top ends of the soil inlet baffle adjusting rods are fixedly connected with the rear baffle, and the bottom ends of the soil inlet baffle adjusting rods are fixedly connected with the soil inlet baffle; the inclination angle of the soil inlet baffle is adjusted by changing the length of the soil inlet baffle adjusting rod, so that the distribution of soil raised after the soil is broken by the rotary tillage cutter set is adjusted.
Preferably, the left side plate and the right side plate extend backwards, the rear baffle plate extends backwards and downwards and is provided with a plurality of partition plates to form a plurality of secondary soil crushing channels; sowing deep control mechanism still includes earthing degree of depth adjustment mechanism, earthing degree of depth adjustment mechanism includes two secondary suppression pressure adjustment poles, secondary suppression pressure adjustment pole is length adjustable telescopic rod spare, two secondary suppression pressure adjustment pole sets up respectively in the both ends of secondary suppression axle of secondary suppression mechanism, the one end and the secondary suppression axle of secondary suppression pressure adjustment pole are connected through bearing and connecting rod, the other end of secondary suppression pressure adjustment pole and the rear end fixed connection of frame.
Preferably, it still includes seedbed degree of depth adjustment mechanism to broadcast dark control mechanism, seedbed degree of depth adjustment mechanism includes two and once presses the pressure adjustment pole, once press the pressure adjustment pole and be length-adjustable telescopic rod spare, two a press the pressure adjustment pole and set up respectively in once the both ends of suppressing the pressure axle, just one end of once pressing the pressure adjustment pole is passed through bearing and connecting rod with once suppressing the pressure axle and is connected, the other end of once suppressing the pressure adjustment pole and the left side board and the right side board fixed connection of frame.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model discloses a sowing depth control mechanism, which adjusts the distribution of soil raised after the soil is broken by a rotary tillage cutter group through a soil quantity distribution mechanism; the height of the secondary pressing shaft is adjusted through the soil covering depth adjusting mechanism, the total amount of broken soil of the rotary tillage cutter set is adjusted, the soil amount entering the secondary soil crushing channel is increased or reduced, and the soil amount falling to the rear of the primary pressing mechanism is further reduced or increased; the length of the pressure regulating rod is changed through the seedbed depth regulating mechanism, the height of the pressing shaft and the distance between the pressing shaft and the rotary tillage cutter set are adjusted, the soil amount of the seedbed is converted through adjustment, and the soil covering amount of the seed surface is indirectly changed. The utility model discloses a sowing depth control mechanism, which realizes accurate control of sowing depth from different angles of adjusting distribution of total raised soil, changing soil entering a secondary soil crushing channel, changing soil of a seed bed and the like according to the characteristics that the total raised soil after a rotary tillage cutter set breaks the soil is certain and the soil covering amount determines the sowing depth after pressing, and the like.
Drawings
Fig. 1 is a perspective view of the overall structure of a multifunction seeder provided in embodiment 1 of the present invention;
fig. 2 is a perspective view of a rack provided in embodiment 1 of the present invention;
fig. 3 is a front view of a housing provided in embodiment 1 of the present invention;
fig. 4 is an external overall structural view of the sowing machine provided in embodiment 1 of the present invention;
FIG. 5 is a side view of the sowing machine of FIG. 4 with the left side plate removed to show the internal structure;
FIG. 6 is a side elevational view of the seeding machine of FIG. 5 with the drive mechanism removed;
FIG. 7 is a perspective view of the front left view of FIG. 5;
fig. 8 is a front view of the sowing machine provided in embodiment 1 of the present invention;
fig. 9 is a rear view of the sowing machine provided in embodiment 1 of the present invention;
fig. 10 is a bottom view of the sowing machine provided in embodiment 1 of the present invention.
Description of reference numerals: 1-a rack, 10-a bottom plate, 11-a three-point suspension connecting frame, 111-an upper suspension point, 112-a lower suspension point, 12-a left side plate, 13-a right side plate, 14-a rear baffle, 15-a secondary soil crushing channel, 16-a water tank limiting block, 17-a fertilizer box base, 18-a seed box frame, 310-a rotary tillage cutter set power shaft hole, 410-a secondary soil crushing rotary cutter set power shaft hole and 220-a main transmission shaft hole;
2-a transmission mechanism, 21-a power reversing device, 22-a main transmission shaft, 23-a first transmission belt and 24-a second transmission belt;
3-rotary tillage cutter group, 31-rotary tillage cutter group power shaft and 32-rotary tillage cutter;
4-secondary soil crushing rotary cutter set, 41-secondary soil crushing rotary cutter set power shaft, 42-rotary cutter;
5-a primary pressing mechanism, 51-a primary pressing shaft and 52-a primary pressing wheel;
6-a secondary pressing mechanism, 61-a secondary pressing shaft, 62-a disc type ditching and soil covering wheel and 63-a secondary pressing wheel;
71-a water tank, 72-a fertilizer tank, 73-a seed tank and 730-a seed sowing pipe; 70-water fertilizer mixture outlet;
80-an earth inlet baffle, 81-an earth inlet baffle adjusting rod;
91-primary rolling force adjusting rod, 92-secondary rolling force adjusting rod.
Detailed Description
The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
In the embodiment of the present invention, the end of the frame 1 near the secondary soil crushing rotating blade set 4 is used as the front end, and the end of the frame 1 near the secondary compacting mechanism 6 is used as the rear end, and arrow "←" indicates that the direction from right to left is "front".
Example 1: multifunctional seeder
Referring to fig. 1, the multifunctional seeder includes a frame 1, a transmission mechanism 2, a rotary blade group 3, a secondary soil crushing rotary blade group 4, a primary compacting mechanism 5, a secondary compacting mechanism 6, a plurality of seed boxes 73, and a seeding depth control mechanism.
A retaining fence is arranged below the front end of the frame 1. Specifically, the retaining fence is a retaining structure that is surrounded at the rear and above and opened at the front and below by the floor 10, the tailgate 14, the left side plate 12, and the right side plate 13, as shown in fig. 2;
the rotary tillage cutter group 3 and the secondary compacting mechanism 6 are respectively positioned inside and outside the retaining fence;
the primary compacting mechanism 5 is arranged between the rotary tillage cutter set 3 and the secondary compacting mechanism 6, and the primary compacting mechanism 5 is positioned below the middle part of the retaining fence;
the secondary soil crushing rotary cutter set 4 is arranged in the soil retaining fence, and the secondary soil crushing rotary cutter set 4 is positioned above the primary compacting mechanism 5;
a plurality of seed boxes 73 are arranged in a row and are arranged at the rear end of the bottom plate 10, each seed box 73 is connected with a seed sowing pipe 730, the output ports of the seed sowing pipes 730 of the plurality of seed boxes 73 are arranged in a row below the rack 1 to form a seed output port row, and seeds can be output in a row;
the left side plate 12 and the right side plate 13 extend backwards, the rear baffle plate 14 extends backwards and downwards and is provided with a plurality of partition plates to form a plurality of secondary soil crushing channels 15, the plurality of secondary soil crushing channels 15 are arranged in rows to form a secondary soil crushing channel row which is positioned in front of the seed output port row, and the secondary soil crushing channels 15 correspond to the output ports of the seed discharge pipe 730 one by one;
the rotary tillage knife tackle 3, the primary compacting mechanism 5, the seed output port row, the secondary soil crushing channel row and the secondary compacting mechanism 6 are sequentially contacted or distributed close to the ground from the front to the back.
Wherein, the rotary tillage cutter set 3 breaks the soil and lifts the soil backwards, the soil is divided into two parts, one part of the soil directly falls down after turning along the rotary tillage cutter set 3, firstly falls in front of the primary compacting mechanism 5 and is compacted by the primary compacting mechanism 5, and a plurality of seedbeds which are smooth and consistent are formed;
the seeds are output from the output ports of the seeding pipes 730 arranged at the seed output ports and then fall on the seed bed;
the other part of raised soil is crushed by the secondary soil crushing rotary cutter set 4 in the air and then is discharged from the secondary soil crushing channel 15 respectively to cover the surface of the seeds on the seedbed;
the secondary compacting mechanism 6 compacts the covering soil covering the seeds, and ridge-making and shaping are realized.
Continuing to refer to fig. 2, combine fig. 2 to fig. 4, as the supporting structure of whole seeder, frame 1 still includes three-point suspension link 11, three-point suspension link 11 sets up in the front end of bottom plate 10, refer to fig. 7, three-point suspension link 11 includes preceding tripod and back tripod, the base of preceding tripod and back tripod sets up in the bottom plate 10 front end, the base of back tripod sets up in the rear end of bottom plate 10, and the summits of preceding tripod and back tripod pass through connecting block fixed connection, be provided with upper suspension point 111 on the connecting block, the both ends of preceding tripod are provided with a lower suspension point 112 respectively, three-point suspension link 11 adopts the mode of three-point suspension, be used for the three-point suspension butt joint with the tractor.
Specifically, the left side plate 12 and the right side plate 13 are respectively fixed to both sides below the front end of the base plate 10; the rear baffle plate 14 is arranged below the bottom plate 10 and positioned between the left side plate 12 and the right side plate; the left side plate 12, the right side plate 13, the bottom plate 10 and the rear baffle plate 14 form a soil retaining fence together, and are used for preventing the raised soil from moving towards two sides and the rear.
Referring to fig. 1, 4 and 5, the transmission 2 comprises a power reversing device 21, a main drive shaft 22, a first drive belt 23 and a second drive belt 24,
the power reversing device 21 is fixed on the upper surface of the front end of the bottom plate 10, the main transmission shaft 22 penetrates through the power reversing device 21, and the power input end of the power reversing device 21 is used for being connected with a power output shaft of a butt-joint tractor.
Specifically, referring to fig. 2, two sides of the bottom plate 10 are respectively provided with a left drooping lug and a right drooping lug, main transmission shaft holes 220 are symmetrically formed on the left drooping lug and the right drooping lug, and two ends of the main transmission shaft 22 are respectively inserted into the main transmission shaft holes 220 of the left drooping lug and the right drooping lug.
Specifically, the power reversing device 21 is in the prior art and comprises a gear transmission box and a power input end, the main transmission shaft 22 and the power input end are vertically arranged in the gear transmission box, gears which are meshed with each other are sleeved on the main transmission shaft 22 and the power input end, the middle of the main transmission shaft 22 is located inside the gear transmission box, the power input end extends out of the gear transmission box, and the power input end of the power reversing device 21 rotates to 90 degrees after receiving power and outputs the power to the main transmission shaft 22.
The rotary tillage cutter group 3 is arranged at the front part of the lower part of the frame 1.
Specifically, the rotary tillage cutter group 3 comprises a rotary tillage cutter group power shaft 31, the rotary tillage cutter group power shaft 31 is arranged at the front part of the retaining fence, and a plurality of rotary tillage cutters 32 are arranged on the rotary tillage cutter group power shaft 31 in a spiral line manner and are used for rotary tillage, stubble cleaning and soil lifting to the inside of the retaining fence;
the end of the rotary blade group power shaft 31 is connected with the end of the main transmission shaft 22 through a first transmission belt 23.
More specifically, the front ends of the left side plate 12 and the right side plate 13 are respectively provided with a rotary blade group power shaft hole 310, and two ends of the rotary blade group power shaft 31 penetrate through the rotary blade group power shaft holes 310 of the left side plate 12 and the right side plate 13.
The secondary soil crushing rotary cutter set 4 is arranged in the middle of the lower part of the rack 1.
Specifically, the secondary soil-crushing rotary cutter group 4 comprises a secondary soil-crushing rotary cutter group power shaft 41, the secondary soil-crushing rotary cutter group 4 is arranged above the rear part of the soil retaining fence, and a plurality of rotary cutters 42 are arranged on the secondary soil-crushing rotary cutter group power shaft 41 in a spiral line;
the end of the secondary soil-crushing rotary cutter group power shaft 41 is connected with the end of the main transmission shaft 22 through a second transmission belt 24.
More specifically, the rear ends of the left side plate 12 and the right side plate 13 are respectively provided with a secondary soil-breaking rotating cutter group power shaft hole 410, and both ends of the secondary soil-breaking rotating cutter group power shaft 41 are inserted into the secondary soil-breaking rotating cutter group power shaft holes 410 of the left side plate 12 and the right side plate 13.
Referring to fig. 8, a compacting mechanism 5 includes a compacting shaft 51, and a plurality of compacting wheels 52 are uniformly arranged on the compacting shaft 51 at intervals, so that the soil after being broken by the rotary tillage knife group 3 can be compacted to form a plurality of flat and uniform seedbeds.
Referring to fig. 9, the secondary pressing mechanism 6 includes a secondary pressing shaft 61, disc-type ditching and soil covering wheels 62 are disposed at two ends of the secondary pressing shaft 61, one disc-type ditching and soil covering wheel group is composed of the two disc-type ditching and soil covering wheels 62, and a plurality of disc-type ditching and soil covering wheel groups and a plurality of secondary pressing wheels 63 are disposed on the secondary pressing shaft 61 in a spaced manner.
Specifically, once press wheel 52, seed case 73, secondary hack passageway 15 and secondary press wheel 63's quantity equals and respectively the one-to-one, one of them is pressed by press wheel 52 and is formed a seedbed, every seedbed top corresponds the delivery outlet that has a seed metering pipe 730 and sows the operation, the delivery outlet correspondence of every seed metering pipe 730 has a secondary hack passageway 15 to spread the soil of secondary hack to the seedbed surface, the operation of earthing is carried out to disk ditching earthing wheelset, every secondary hack passageway 15 corresponds a secondary press wheel 63, carry out the suppression operation after it closely.
In order to fertilize seeds, a fertilizer box 72 is arranged on the bottom plate 10, the fertilizer box 72 is connected with a plurality of fertilizer tubes, the number of the fertilizer tubes is equal to that of the seed tubes 730, the fertilizer tubes and the seed tubes are arranged in pairs, and the output ports of each pair of the fertilizer tubes and the seed tubes 730 correspond to a seed bed formed by the pressing of one pressing wheel 52.
The bottom plate 10 is also provided with a water tank 71 and a fertilizer tank 72, the water tank 71 is connected with a plurality of water discharge pipes, the fertilizer tank 72 is connected with a plurality of fertilizer discharge pipes, each water discharge pipe and each fertilizer discharge pipe 730 are converged to form a water-fertilizer mixture outlet 70, each water-fertilizer mixture outlet 70 is bound with the outlet of one seed discharge pipe 730 to form a pipe bundle, and each pipe bundle corresponds to a seed bed formed by the pressing of one primary pressing wheel 52; a plurality of tube bundles are arranged in rows below the frame 1 to form a mixture outlet row; the tube bank is arranged and is close to ground and be located behind primary suppression mechanism 5, before secondary hack passageway 15, not only can the seed of in bank output, can also the mixed solution of water, fertile in bank output.
Referring to fig. 1, a water tank 71, a fertilizer tank 72, and a seed tank 73 are sequentially provided on a middle rear portion of a bottom plate 10 of a frame 1 from front to rear.
Specifically, a water tank placing area, a fertilizer tank placing area and a seed tank placing area are sequentially arranged at the middle rear part of the bottom plate 10 from front to back, referring to fig. 2, a plurality of water tank limiting blocks 16 are fixed on the water tank placing area, the water tank limiting blocks 16 are angle steel, when the water tank 71 is placed in the water tank placing area, the plurality of water tank limiting blocks 16 are clamped at the corners of the water tank 71, and the movement of the water tank 71 is limited; a fertilizer box base 17 is arranged on the fertilizer box placing area, and the fertilizer box 72 is fixed on the fertilizer box base 17; the seed box placing area is located at the rear end of the bottom plate 10, the seed box placing area is provided with seed box frames 18, as can be seen from fig. 1, 6 seed box holes are formed in rows on the seed box frames 18, and 6 seed boxes 73 are respectively arranged in the 6 seed box holes in a one-to-one correspondence manner.
More specifically, as can be seen from fig. 8, fig. 1, fig. 3, fig. 9 and fig. 10, respectively, in the embodiment of the present invention, the number of the primary press wheels 52 is 6, the number of the seed boxes 73 is 6, the number of the secondary soil crushing passages 15 is 6, the number of the secondary press wheels 63 is 6, and the number of the tube bundles formed by binding the water-manure mixture outlet 70 and the outlet of the seed tube 730 is also 6.
Example 2: sowing depth control mechanism
The sowing depth control mechanism comprises a soil quantity distribution mechanism, an earthing depth adjusting mechanism and a seedbed depth adjusting mechanism,
referring to fig. 2 to 3 and 4 to 7, the soil amount distribution mechanism includes a soil inlet blocking plate 80 and two soil inlet blocking plate adjusting rods 81,
the soil inlet baffle 80 is a rectangular plate, the soil inlet baffle 80 is arranged between the power shaft 41 of the secondary soil crushing rotary cutter set and the power shaft 31 of the rotary cutter set, and the soil lifted by overturning the rotary cutter set 3 is prevented from entering the inclination angle of the secondary soil crushing rotary cutter set 4 through adjustment, so that the distribution of the soil lifted after the soil is broken by the rotary cutter set 3 is adjusted.
Specifically, two ends of the soil inlet baffle 80 are respectively arranged on the left side plate 12 and the right side plate 13, the left end of the soil inlet baffle 80 is fixed on the inner side surface of the left side plate 12 between the rotary tillage cutter set power shaft hole 310 and the secondary soil crushing rotary cutter set power shaft 41, and the right end of the soil inlet baffle 80 is fixed on the inner side surface of the right side plate 13 between the rotary tillage cutter set power shaft hole 310 and the secondary soil crushing rotary cutter set power shaft 41; the feed openings of the plurality of secondary crushing passages 15 are arranged in parallel in a row and abut against the long side of the rear side of the soil inlet baffle 80.
When the soil inlet baffle 80 is rotated to be in a vertical state, the effective area of the soil in the soil inlet baffle 80 for preventing the rotary tillage cutter set 3 from turning and lifting is the largest, and the soil entering the secondary soil crushing channel 15 after being crushed by the secondary soil crushing rotary cutter set 4 in the air is the least; when the soil inlet baffle 80 is rotated to a horizontal state, the effective area of the soil in the soil inlet baffle 80 for preventing the rotary tillage cutter group 3 from turning and lifting is the minimum, and the soil amount entering the secondary soil crushing channel 15 after being crushed by the secondary soil crushing rotary cutter group 4 in the air is the maximum; when the inclination angle of the soil inlet baffle 80 is between the vertical state and the horizontal state, the effective area of the soil in the soil inlet baffle 80 for preventing the rotary blade group 3 from turning and lifting is between the maximum value and the minimum value of the effective area, and the amount of the soil entering the secondary soil crushing channel 15 after being crushed by the secondary soil crushing rotary blade group 4 in the air is also between the maximum value and the minimum value.
Two soil inlet baffle adjusting rods 81 are respectively arranged at two sides of the rear baffle 14, the top ends of the soil inlet baffle adjusting rods 81 are fixedly connected with the rear baffle 14, the bottom ends of the soil inlet baffle adjusting rods 81 are fixedly connected with the soil inlet baffle 80,
the soil inlet baffle adjusting rod 81 is a telescopic rod piece with adjustable length, and the inclination of the soil inlet baffle 80 is adjusted by changing the length of the soil inlet baffle adjusting rod 81, so that the distribution of soil raised after being broken by the rotary tillage cutter group 3 is adjusted, if the soil amount entering the secondary soil crushing channel 15 is increased, the soil amount falling to the front of the primary compacting mechanism 5 is reduced, the more the soil amount entering the secondary soil crushing channel 15 is, the more soil covering above the seeds is, namely, the deeper the sowing depth is; if the amount of soil entering the secondary soil crushing passage 15 is reduced and the amount of soil falling down to the front of the primary compacting mechanism 5 is increased, the less the amount of soil entering the secondary soil crushing passage 15, the less the covering soil above the seeds is, that is, the shallower the sowing depth, and the control of the sowing depth is realized.
Referring to fig. 4 to 7, the soil covering depth adjusting mechanism includes two secondary pressure adjusting rods 92, the secondary pressure adjusting rods 92 are telescopic rods with adjustable lengths, the two secondary pressure adjusting rods 92 are respectively disposed at two ends of the secondary pressing shaft 61 of the secondary pressing mechanism 6, one end of the secondary pressure adjusting rod 92 is connected to the secondary pressing shaft 61 through a bearing and a connecting rod, and the other end of the secondary pressure adjusting rod 92 is fixedly connected to the rear end of the frame 1.
The total amount of the soil broken by the rotary tillage cutter set 3 is adjusted by changing the length of the secondary soil-pressure adjusting rod 92 and adjusting the height of the secondary soil-pressure shaft 61, so that the amount of the soil entering the secondary soil-crushing channel 15 is increased or reduced, and the amount of the soil falling to the rear of the primary soil-pressure mechanism 5 is reduced or increased, wherein the sowing depth depends on the covering soil above the seeds, and when the amount of the soil entering the secondary soil-crushing channel 15 is increased, the sowing depth is correspondingly large; when the amount of soil entering the secondary soil crushing passage 15 is reduced, the sowing depth is correspondingly small.
Referring to fig. 4, 5 and 7, the seedbed depth adjusting mechanism includes two primary ballast pressure adjusting rods 91, the primary ballast pressure adjusting rods 91 are telescopic rods with adjustable lengths, the two primary ballast pressure adjusting rods 91 are respectively arranged at two ends of the primary ballast shaft 51, one end of the primary ballast pressure adjusting rod 91 is connected with the primary ballast shaft 51 through a bearing and a connecting rod, and the other end of the primary ballast pressure adjusting rod 91 is fixedly connected with the left side plate 12 and the right side plate 13 of the rack 1.
The height of the primary presser shaft 51 is adjusted by changing the length of the primary presser adjustment lever 91.
When the primary pressing shaft 51 is higher and is farther away from the rotary tillage cutter group 3, the weaker the compacting effect of the primary pressing shaft 51 on the seedbed is, the softer the seedbed is; conversely, when the primary pressing shaft 51 is lower and closer to the rotary tillage cutter group 3, the stronger the compacting effect of the primary pressing shaft 51 on the seedbed, the firmer the seedbed will be, the length of the primary pressing adjusting rod 91 can be adjusted, a proper seedbed compacting effect can be obtained, and the soil shaping effect of the seedbed can be realized.
Because the total amount of the soil raised after the rotary tillage knife tackle 3 breaks the soil can be regarded as certain, when more soil is converted into the seedbed, the less soil can be converted into the earthing soil on the surface of the seeds, and the precision of the control of the sowing depth is further improved.
Example 3: wheat sowing method
step S1: the three-point suspension connecting frame 11 is in butt joint with a tractor, the power input end of the power reversing device 21 is in butt joint with the power output shaft of the tractor, the tractor is started, and the wheat seeder is pulled by the tractor to move forwards; meanwhile, the power output shaft of the tractor drives the main transmission shaft 22 to rotate, and further drives the rotary tillage cutter group power shaft 31 and the secondary soil crushing rotary cutter group power shaft 41 to rotate;
step S2: in the advancing process of the wheat seeder, the rotary tillage cutter set 3 carries out rotary tillage and stubble cleaning and lifts soil backwards, the soil is divided into two parts, most of the soil falls back to the ground after being overturned along the rotary tillage cutter set 3 and is positioned in front of the primary pressing mechanism 5, ridges are formed after being pressed by the primary pressing mechanism 5 to form a flat and consistent seedbed, water in the water tank 71 and fertilizer in the fertilizer tank 72 are combined and flow out from the water-fertilizer mixture outlet 70, and meanwhile, seeds in the seed box 73 flow out from the outlet of the seed sowing pipe 730 and fall into the ridges of the seedbed together;
the other small part of the raised soil is crushed by the secondary soil crushing rotary cutter group 4, flows out from the secondary soil crushing channel 15, falls to the ground, is positioned behind the primary press mechanism 5 and covers the surface of seeds among the seedbed ridges;
step S3: after covering the wheat seeds with soil, the secondary compacting mechanism 6 performs compacting, ridge-aligning and shaping.
In step S3, the length of the soil inlet baffle adjustment rod 81 is changed, and the height and inclination of the soil inlet baffle 80 are adjusted, so as to adjust the amount of soil entering the secondary soil crushing channel 15, and further control the sowing depth.
The soil covering amount determines the sowing depth after the suppression, the soil covering amount on the upper surface of the wheat seeds can be controlled by adjusting the inclination angle and the height of the soil inlet baffle 80, and therefore, the sowing depth can be accurately controlled by adjusting the inclination angle and the height of the soil inlet baffle 80.
Although the utility model has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.
Claims (3)
1. A sowing depth control mechanism is arranged on a multifunctional sowing machine, the multifunctional sowing machine comprises a frame (1), a rotary tillage cutter group (3) and a secondary soil-breaking rotary cutter group (4), a soil-retaining fence is arranged below the front end of the frame (1), the soil-retaining fence is a soil-retaining structure which is surrounded by a bottom plate (10), a rear baffle plate (14), a left side plate (12) and a right side plate (13) and has an opening in the front and the lower, the rotary tillage cutter group (3) comprises a rotary tillage cutter group power shaft (31), the secondary soil-breaking rotary cutter group (4) comprises a secondary soil-breaking rotary cutter group power shaft (41), and the sowing depth control mechanism is characterized by comprising a soil amount distribution mechanism, an earthing depth adjusting mechanism and a seed bed depth adjusting mechanism,
the soil quantity distribution mechanism comprises a soil inlet baffle (80) and two soil inlet baffle adjusting rods (81),
the soil inlet baffle (80) is a rectangular plate, and the soil inlet baffle (80) is arranged between the secondary soil crushing rotary cutter set power shaft (41) and the rotary tillage cutter set power shaft (31); the distribution of the raised soil after the soil is broken by the rotary tillage cutter set (3) is adjusted by adjusting the inclination angle for preventing the soil turned and raised by the rotary tillage cutter set (3) from entering the secondary soil crushing rotary cutter set (4);
the soil inlet baffle adjusting rods (81) are telescopic rod pieces with adjustable lengths, the two soil inlet baffle adjusting rods (81) are respectively arranged on two sides of the rear baffle (14), the top ends of the soil inlet baffle adjusting rods (81) are fixedly connected with the rear baffle (14), and the bottom ends of the soil inlet baffle adjusting rods (81) are fixedly connected with the soil inlet baffle (80); the distribution of the soil raised after the soil is broken by the rotary tillage cutter group (3) is adjusted by changing the length of the soil inlet baffle adjusting rod (81) and further adjusting the inclination angle of the soil inlet baffle (80);
the soil covering depth adjusting mechanism comprises two secondary pressing force adjusting rods (92), the secondary pressing force adjusting rods (92) are telescopic rod pieces with adjustable lengths, the two secondary pressing force adjusting rods (92) are respectively arranged at two ends of a secondary pressing shaft (61) of the secondary pressing mechanism (6), one end of each secondary pressing force adjusting rod (92) is connected with the corresponding secondary pressing shaft (61) through a bearing and a connecting rod, and the other end of each secondary pressing force adjusting rod (92) is fixedly connected with the rear end of the rack (1);
seedbed degree of depth adjustment mechanism includes two and once presses pressure adjustment pole (91), once press pressure adjustment pole (91) for length adjustable telescopic rod spare, two press pressure adjustment pole (91) set up respectively in the both ends of once pressing axle (51), just one the one end of once press pressure adjustment pole (91) is connected through bearing and connecting rod with once pressing axle (51), press left side board (12) and right side board (13) fixed connection of the other end of pressure adjustment pole (91) and frame (1) once.
2. The mechanism of claim 1,
the two ends of the soil feeding baffle plate (80) are respectively arranged on the left side plate (12) and the right side plate (13), the left end of the soil feeding baffle plate (80) is fixed between a rotary tillage cutter set power shaft hole (310) and a secondary soil crushing rotary cutter set power shaft (41) on the inner side surface of the left side plate (12), and the right end of the soil feeding baffle plate (80) is fixed between the rotary tillage cutter set power shaft hole (310) and the secondary soil crushing rotary cutter set power shaft (41) on the inner side surface of the right side plate (13).
3. The mechanism of claim 2,
the left side plate (12) and the right side plate (13) extend backwards, the rear baffle (14) extends backwards and downwards and is provided with a plurality of partition plates to form a plurality of secondary soil crushing channels (15).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220301270.6U CN217011676U (en) | 2022-02-15 | 2022-02-15 | Sowing depth control mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220301270.6U CN217011676U (en) | 2022-02-15 | 2022-02-15 | Sowing depth control mechanism |
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| CN217011676U true CN217011676U (en) | 2022-07-22 |
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| CN202220301270.6U Active CN217011676U (en) | 2022-02-15 | 2022-02-15 | Sowing depth control mechanism |
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