CN212381655U

CN212381655U - Seed metering device of no-tillage precision seeder

Info

Publication number: CN212381655U
Application number: CN202020587818.9U
Authority: CN
Inventors: 王秀聪
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2021-01-22
Anticipated expiration: 2030-04-17

Abstract

The utility model discloses a seed metering device of no-tillage precision seeder, including a fixed cylinder, a telescopic cylinder has been cup jointed to the inner chamber of a fixed cylinder, and the inner tube has been cup jointed to the inner chamber of a fixed cylinder and a telescopic cylinder, and telescopic cylinder's bottom is equipped with two sets of arcs, a set of arc and telescopic cylinder's bottom fixed connection, and another group's arc is connected through the round pin axle rotation with telescopic cylinder's bottom, and telescopic cylinder's lateral wall activity has cup jointed the annular piece. The utility model has the advantages that: the runner rotates and drives the bolt rotation, the bolt is pressing the slider and is taking telescopic cylinder to the soil internal motion, the annular piece receives soil pressure upward movement, telescopic machanism drives the arc and is the extension movement, prevented that the seeder from ploughing after the soil, the condition in the ditch is got back to the earth of ditch both sides again, make the seed drop from the inner tube and plant in the soil with certain degree of depth, the rate of emergence of seed has been guaranteed, the effectual receipts of guaranteeing crops, simultaneously still greatly reduced later stage benefit seedling workman's intensity of labour.

Description

Seed metering device of no-tillage precision seeder

Technical Field

The utility model relates to a seed metering device, in particular to a seed metering device of a no-tillage precision seeding machine, belonging to the technical field of crop seeding.

Background

The seeder is a planting machine taking crop seeds as a seeding object, is used for seeding of a certain type or a certain type of crops, is usually named by crop types, such as a grain drill, a corn hill planter, a cotton seeder, a pasture broadcast seeder and the like, and with the progress of science and technology, the seeder for no-tillage precision seeding also slowly walks into agricultural planting.

For the crops of corn and soybean which need to plant seeds in the soil with a certain depth, the current seeding machine generally utilizes a plough to loosen the soil and plough out of the ditch, then the seeds fall into the ditch from a seed box to realize seeding, but when the plough of the seeding machine ploughs the soil and then the seeds enter the soil, the soil on the two sides of the ditch easily returns back into the ditch again, so that the planting depth of the seeds cannot be accurately ensured, the emergence rate of the seeds is influenced, the later-stage seedling supplementing work is increased, and meanwhile, the harvest of the crops is also influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a seed metering device of no-tillage precision seeding machine for solving the problems, the operation is flexible, after the plough of the seeding machine passes through the soil, the soil on the two sides of the ditch returns to the condition in the ditch again, so that the seeds are planted in the soil with a certain depth, and the emergence rate of the seeds is ensured.

The utility model realizes the above purpose by the following technical proposal, a seed metering device of a no-tillage precision seeding machine, which comprises a fixed cylinder, wherein the inner cavity of the fixed cylinder is sleeved with a telescopic cylinder, the inner cavities of the fixed cylinder and the telescopic cylinder are sleeved with inner cylinders, the top of the inner cylinder is fixedly connected with the top of the fixed cylinder, the bottom of the inner cylinder extends to the bottom of the telescopic cylinder, the bottom of the telescopic cylinder is provided with two groups of arc plates, one group of arc plates is fixedly connected with the bottom of the telescopic cylinder, the other group of arc plates is rotatably connected with the bottom of the telescopic cylinder by a pin shaft, and the side wall of the telescopic cylinder is movably sleeved with an annular block;

the telescopic cylinder is characterized in that grooves are formed in the side walls of the telescopic cylinder correspondingly and respectively, a second sliding groove is formed in the lower portion of the side wall of the telescopic cylinder where the grooves are formed, fixed blocks are fixedly connected to the inner walls, corresponding to the second sliding grooves, of the annular blocks respectively, the fixed blocks are connected with the second sliding grooves in a sliding mode, the fixed blocks are fixedly connected to the upper surfaces, located in the grooves of the second sliding grooves, of the fixed columns, return springs are arranged in the grooves of the grooves, one ends of the return springs are in contact with the upper surfaces of the fixed columns, the other ends of the return springs are in contact with the top walls of the grooves, and the arc-shaped plates and the fixed.

Preferably, telescopic machanism includes spacing groove, first hydraulic stem and return bend, on the inner wall of arc was seted up to the spacing groove, first hydraulic stem fixed connection is at the upper surface of fixed block, the inner chamber of return bend cup joints the top at first hydraulic stem, the second hydraulic stem has been cup jointed to the other end of return bend, first hydraulic stem and second hydraulic stem place return bend between the top form a sealed cavity with the return bend, be equipped with hydraulic oil in the cavity.

Preferably, the inner cavity of the fixed cylinder is fixedly connected with a fixed plate, a through hole directly matched with the inner cylinder is formed in the center of the fixed plate, two groups of first sliding grooves are correspondingly formed in the inner wall of the fixed cylinder respectively, sliding blocks are connected in the grooves of the first sliding grooves in a sliding mode, the sliding blocks are fixedly connected to the side wall, located in the inner cavity of the fixed cylinder, of the telescopic cylinder, the outer wall, located in the inner cavity of the fixed cylinder, of the telescopic cylinder is sleeved with a resisting spring, one end of the resisting spring is in contact with the lower surfaces of the two groups of sliding blocks, and the other end of the resisting spring is in contact with the inner.

Preferably, the inner cavity of the telescopic cylinder is fixedly connected with two groups of baffles, the two groups of baffles are arc-shaped, the bottoms of the two groups of baffles are connected into a circle, and the two groups of baffles are positioned below the bottom of the inner cylinder.

Preferably, fixedly connected with servo motor on the connecting rod of seeder, servo motor's axle fixedly connected with runner, the thread groove has been seted up respectively in the lateral wall quartering department of runner, the inslot thread connection of thread groove has the bolt, threaded connection has the nut on the lateral wall that the bolt is located outside the thread groove, the bolt is corresponding with the slider.

Preferably, a first sliding groove formed in the side wall, close to the servo motor, of the fixed cylinder is a through groove, a sliding block in the through groove extends towards the outer wall of the fixed cylinder and corresponds to the bolt, a second sliding groove formed in the side wall, close to the servo motor, of the telescopic cylinder is a through groove, a fixed block in the through groove extends towards the inner cavity of the telescopic cylinder, and the first hydraulic rod is located in the inner cavity of the telescopic cylinder.

Preferably, the second hydraulic rod is L-shaped, the limiting groove is matched with the bottom end of the second hydraulic rod, and the arc-shaped plate provided with the limiting groove is rotatably connected with the bottom of the telescopic cylinder through a pin shaft.

The utility model has the advantages that: through the arrangement of the fixed cylinder, the telescopic cylinder, the inner cylinder, the abutting spring, the telescopic mechanism and the servo motor, the bolt is driven to rotate through the rotation of the rotating wheel on the servo motor, the bolt drives the telescopic cylinder to move towards the inside of the soil through the rotation of the sliding block, the annular block is driven to move upwards under the pressure of the soil, so that the telescopic mechanism drives the arc-shaped plate to do expansion movement, the situation that soil on two sides of a ditch returns to the ditch again after a plough of the seeder plows the soil is prevented, seeds fall from the inner cylinder and are planted in the soil at a certain depth, the emergence rate of the seeds is ensured, the harvest of crops is effectively ensured, and the labor intensity of later-stage seedling supplementing workers is greatly reduced;

through set up the screw hole on the runner, the bolt can pass through the nut with different length and fixed with the runner for the contact time extension with the slider when the bolt rotates has reached the effect that utilizes the bolt control telescopic cylinder to creep into the ground degree of depth, controls the clearance time of four groups of bolts and slider contact through the rotational speed of control servo motor simultaneously, thereby has reached the effect of control seed seeding density.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a sectional view of the present invention;

FIG. 3 is an enlarged view of the present invention A;

FIG. 4 is an enlarged view of the present invention B;

fig. 5 is an enlarged view of the present invention C.

In the figure: 1. the fixed cylinder 101, the first spout, 2, the telescopic cylinder 201, the recess, 202, the second spout, 203, the slider, 3, the inner tube, 4, the arc, 401, the spacing groove, 5, the annular piece, 501, the fixed block, 502, the first hydraulic stem, 6, the fixed column, 7, reset spring, 8, the second hydraulic stem, 9, the return bend, 10, the fixed plate, 11, support the spring, 12, the baffle, 13, servo motor, 14, the runner, 1401, the thread groove, 15, the bolt, 16, the nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a seed sowing device of a no-tillage precision seeder, comprising a fixed cylinder 1, a telescopic cylinder 2 is sleeved in the inner cavity of the fixed cylinder 1, a second chute 202 formed on the side wall of the telescopic cylinder 2 close to a servo motor 13 is a through groove, the type of the motor used in the utility model can be set as 130SM15010, two sets of first chutes 101 are respectively formed on the inner wall of the fixed cylinder 1 correspondingly, the first chute 101 formed on the side wall of the fixed cylinder 1 close to the servo motor 13 is a through groove, a slide block 203 in the through groove extends towards the outer wall of the fixed cylinder 1 and corresponds to a bolt 15, a slide block 203 is slidably connected in the groove of the first chute 101, the slide block 203 is fixedly connected to the side wall of the inner cavity of the fixed cylinder 2, a tightening spring 11 is sleeved on the outer wall of the inner cavity of the fixed cylinder 2, one end of the tightening spring 11 contacts with the lower surfaces of the two sets of slide blocks 203, the other end of the abutting spring 11 is contacted with the inner bottom of the telescopic cylinder 2, the inner cylinders 3 are sleeved in the inner cavities of the fixed cylinder 1 and the telescopic cylinder 2, the inner cavity of the fixed cylinder 1 is fixedly connected with a fixed plate 10, the center of the fixed plate 10 is provided with a through hole which is directly matched with the inner cylinder 3, the top of the inner cylinder 3 is fixedly connected with the top of the fixed cylinder 1, the bottom of the inner cylinder 3 extends towards the bottom of the telescopic cylinder 2, the inner cavity of the telescopic cylinder 2 is fixedly connected with two groups of baffles 12, the two groups of baffles 12 are arc-shaped, the bottoms of the two groups of baffles 12 are connected into a round shape so as to facilitate the falling of seeds, the two groups of baffles 12 are positioned below the bottom of the inner cylinder 3, the bottom of the telescopic cylinder 2 is provided with two groups of arc-shaped plates 4, one group of arc-shaped plates 4 is fixedly connected with the bottom of the telescopic cylinder 2, the other group of arc-shaped plates 4, the side wall of the telescopic cylinder 2 is movably sleeved with an annular block 5.

As a technical optimization scheme of the utility model, the side wall of the telescopic cylinder 2 is correspondingly provided with a groove 201, the side wall of the telescopic cylinder 2 where the groove 201 is located is provided with a second chute 202 below, the inner walls of the annular block 5 corresponding to the second chute 202 are respectively and fixedly connected with a fixed block 501, the fixed block 501 is in sliding connection with the second chute 202, the upper surface of the fixed block 501 in the second chute 202 is fixedly connected with a fixed column 6, the top end of the fixed column 6 is located in the groove of the groove 201, a reset spring 7 is arranged in the groove of the groove 201, one end of the reset spring 7 is contacted with the upper surface of the fixed column 6, the other end of the reset spring 7 is contacted with the top wall of the groove 201, the arc plate 4 is directly provided with a telescopic mechanism with the fixed block 501, the telescopic mechanism comprises a limit groove 401, a first hydraulic rod 502 and a bent pipe 9, the limit groove, the first hydraulic rod 502 is fixedly connected to the upper surface of the fixed block 501, the inner cavity of the elbow 9 is sleeved at the top end of the first hydraulic rod 502, the other end of the elbow 9 is sleeved with the second hydraulic rod 8, the second hydraulic rod 8 is L-shaped, the limiting groove 401 is matched with the bottom end of the second hydraulic rod 8, the elbow 9 is formed into a sealed cavity between the first hydraulic rod 502 and the top end of the elbow 9 where the second hydraulic rod 8 is located, hydraulic oil is arranged in the cavity, the bolt 15 is driven to rotate by the rotation of the rotating wheel 14 on the servo motor 13 through the arrangement of the fixed cylinder 1, the telescopic cylinder 2, the inner cylinder 3, the abutting spring 11, the telescopic mechanism and the servo motor 13, the bolt 15 drives the telescopic cylinder 2 to move towards the inside of the land through the sliding block 203, the annular block 5 is upwards moved by the land pressure, the telescopic mechanism drives the arc-shaped plate 4 to do expanding movement, and the situation that, the condition in the ditch is got back to again to the earth of ditch both sides for the seed drops and plants in the soil with certain degree of depth from inner tube 3, has guaranteed the rate of emergence of seed, and the effectual receipts of guaranteeing crops have still greatly reduced later stage benefit seedling workman's intensity of labour simultaneously.

As a technical optimization scheme, fixedly connected with servo motor 13 on the connecting rod of seeder, servo motor 13's axle fixedly connected with runner 14, thread groove 1401 has been seted up respectively to the lateral wall quartering department of runner 14, the groove internal thread of thread groove 1401 has bolt 15, threaded connection has nut 16 on the lateral wall that bolt 15 is located thread groove 1401 outside the groove, bolt 15 is corresponding with slider 203, through seting up thread groove 1401 on runner 14, bolt 15 can pass through nut 16 with different length and runner 14 is fixed, make bolt 15 extend with slider 203's contact time when rotating, reached and utilized bolt 15 control telescopic cylinder 2 to bore the effect of ground degree of depth, the clearance time of four groups of bolts 15 and slider 203 contact is controlled through control servo motor 13's rotational speed simultaneously, thereby the effect of control seed seeding density has been reached.

The utility model discloses when using, when using this novel use, through the seed metering device with the seeder and ground contact, through twisting bolt 15, adjust required length with the one end that bolt 15 is located outside thread groove 1401, through use tool fixing bolt 15, twist nut 16, make between bolt 15 and the runner 14 fixed.

Further, when the seeder needs work, open servo motor 13, servo motor 13 drives runner 14 and rotates, runner 14 drives four sets of bolts 15 and rotates, slider 203 is being pressed in the rotation of bolt 15, slider 203 drives telescopic cylinder 2 and is extending first spout 101 downstream, the soil is bored into to the bottom of telescopic cylinder 2, annular piece 5 receives the resistance drive fixed column 6 and the first hydraulic stem 502 upward movement of soil, fixed column 6 is pressing reset spring 7 and is moving to the groove top wall of recess 201, first hydraulic stem 502 moves to the inner chamber of return bend 9, under the effect of hydraulic oil, make second hydraulic stem 8 downstream, the bottom of second hydraulic stem 8 moves along spacing groove 401 downstream, make arc 4 do the expanding motion, the seed falls into the soil from two sets of arcs 4.

Further, in the time gap that bolt 15 and slider 203 are contactless, under the effect of the elasticity of resisting tight spring 11, slider 203 resumes primary position along first spout 101, under the elasticity of reset spring 7, fixed column 6 is pressing fixed block 501 and is taking annular piece 5 to resume primary position for first hydraulic stem 502 passes through hydraulic oil and drives second hydraulic stem 8 and rise, and the bottom of second hydraulic stem 8 moves along spacing groove 401 upward, makes arc 4 do the shrink motion.

For those skilled in the art, when the planting depth of the seeds needs to be controlled, the contact time between the bolt 15 and the sliding block 203 can be controlled by adjusting the length of the bolt 15, and when the planting density needs to be controlled, the time gap between the bolt 15 and the sliding block 203, which is not in contact with each other, can be controlled by adjusting the rotation speed of the servo motor 13.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a seed metering device of no-tillage precision seeder, includes fixed cylinder (1), its characterized in that: the inner cavity of the fixed cylinder (1) is sleeved with a telescopic cylinder (2), the inner cavities of the fixed cylinder (1) and the telescopic cylinder (2) are sleeved with inner cylinders (3), the top of each inner cylinder (3) is fixedly connected with the top of the fixed cylinder (1), the bottoms of the inner cylinders (3) extend towards the bottom of the telescopic cylinder (2), the bottom of each telescopic cylinder (2) is provided with two groups of arc-shaped plates (4), one group of arc-shaped plates (4) are fixedly connected with the bottom of the telescopic cylinder (2), the other group of arc-shaped plates (4) are rotatably connected with the bottom of the telescopic cylinder (2) through pin shafts, and the side wall of each telescopic cylinder (2) is movably sleeved with an annular block (5);

the side walls of the telescopic cylinder (2) are correspondingly provided with grooves (201), the lower part of the side wall of the telescopic cylinder (2) where the grooves (201) are positioned is provided with a second sliding chute (202), the inner walls of the annular block (5) corresponding to the second sliding chute (202) are respectively and fixedly connected with a fixed block (501), the fixed block (501) is connected with the second sliding chute (202) in a sliding manner, the upper surface of the fixed block (501) positioned in the second sliding chute (202) is fixedly connected with a fixed column (6), the top end of the fixed column (6) is positioned in the groove of the groove (201), a return spring (7) is arranged in the groove of the groove (201), one end of the reset spring (7) is contacted with the upper surface of the fixed column (6), the other end of the return spring (7) is contacted with the top wall of the groove (201), and the arc-shaped plate (4) and the fixed block (501) are directly provided with a telescopic mechanism.

2. A seed discharging device of a no-tillage precision seeder as defined in claim 1, wherein: telescopic machanism includes spacing groove (401), first hydraulic stem (502) and return bend (9), on the inner wall of arc (4) is seted up in spacing groove (401), first hydraulic stem (502) fixed connection is on the upper surface of fixed block (501), the top at first hydraulic stem (502) is cup jointed to the inner chamber of return bend (9), second hydraulic stem (8) have been cup jointed to the other end of return bend (9), first hydraulic stem (502) and second hydraulic stem (8) place return bend (9) between the top of return bend (9) with return bend (9) formation a sealed cavity, be equipped with hydraulic oil in the cavity.

3. A seed discharging device of a no-tillage precision seeder as defined in claim 1, wherein: the inner chamber fixedly connected with fixed plate (10) of a fixed section of thick bamboo (1), the center department of fixed plate (10) sets up the through-hole with the direct looks adaptation of inner tube (3), the corresponding two sets of first spout (101) of having seted up respectively of the inner wall of a fixed section of thick bamboo (1), sliding connection has slider (203) in the groove of first spout (101), slider (203) fixed connection is on telescopic cylinder (2) are located the lateral wall of a fixed section of thick bamboo (1) inner chamber, telescopic cylinder (2) are located the outer wall of a fixed section of thick bamboo (1) inner chamber and have cup jointed and have supported tight spring (11), the one end that supports tight spring (11) contacts with the lower surface of two sets of sliders (203), the other end that supports tight spring (11) contacts with the interior bottom of telescopic cylinder (2).

4. A seed discharging device of a no-tillage precision seeder as defined in claim 1, wherein: the inner cavity of the telescopic cylinder (2) is fixedly connected with two groups of baffles (12), the two groups of baffles (12) are arc-shaped, the bottoms of the two groups of baffles (12) are connected into a circle, and the two groups of baffles (12) are positioned below the bottom of the inner cylinder (3).

5. A seed discharging device of a no-tillage precision seeder as defined in claim 1, wherein: the connecting rod of the seeder is fixedly connected with a servo motor (13), a shaft of the servo motor (13) is fixedly connected with a rotating wheel (14), threaded grooves (1401) are respectively formed in the quartering parts of the side wall of the rotating wheel (14), bolts (15) are connected with the inner threads of the grooves of the threaded grooves (1401), nuts (16) are connected with the side walls, located outside the threaded grooves (1401), of the bolts (15) in a threaded mode, and the bolts (15) correspond to the sliding blocks (203).

6. A seed discharging device of a no-tillage precision seeder as defined in claim 1, wherein: a first sliding groove (101) formed in the side wall, close to the servo motor (13), of the fixed cylinder (1) is a through groove, a sliding block (203) in the through groove extends towards the outer wall of the fixed cylinder (1) and corresponds to the bolt (15), a second sliding groove (202) formed in the side wall, close to the servo motor (13), of the telescopic cylinder (2) is a through groove, and a fixed block (501) in the through groove extends towards the inner cavity of the telescopic cylinder (2).

7. A seed discharging device of a no-tillage precision seeder as defined in claim 2, wherein: the second hydraulic rod (8) is L-shaped, the limiting groove (401) is matched with the bottom end of the second hydraulic rod (8), and the arc-shaped plate (4) of the limiting groove (401) is rotatably connected with the bottom of the telescopic cylinder (2) through a pin shaft.