CN213426935U

CN213426935U - Seed throwing structure of seed hill planter

Info

Publication number: CN213426935U
Application number: CN202022151454.2U
Authority: CN
Inventors: 吴志威; 于林惠; 雷震
Original assignee: Nanjing Vocational University of Industry Technology NUIT
Current assignee: Nanjing Vocational University of Industry Technology NUIT
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-06-15
Anticipated expiration: 2030-09-27

Abstract

The utility model discloses a seed structure is thrown to cam of seed hill-drop planter, throw kind of device including seed box and the throwing of setting in seed box, throw kind of device including the power shaft that runs through seed box, through the axle sleeve around establishing at the epaxial swinging boom of power and with the swinging boom lever arm that is close to power shaft one end lateral wall swing joint, the one end lateral wall that the power shaft was kept away from to the lever arm can be dismantled and is connected with the seed spoon of throwing, the last fixed cover of power shaft is equipped with the cam, the wheel outer fringe elevation point of cam is inconsistent with the one end that the lever arm is close to the power shaft, a side that swinging boom and lever arm are located the cam is connected with torsion spring, the one end lateral wall that the power shaft was kept away from to the swinging boom is provided with the spacing stop screw of conf. The utility model discloses a seed throwing structure is thrown to the cam, can alleviate the slope of seed throwing spoon, avoids seed throwing spoon and bump the unrestrained problem of seed that results in of collision in the twinkling of an eye of wheel, realizes accurate variable bunch planting.

Description

Seed throwing structure of seed hill planter

Technical Field

The utility model relates to a hill-drop planter technical field especially relates to a seed hill-drop planter's cam throws kind of structure.

Background

In the present seed hill-drop planter, a lever type seed throwing spoon structure is adopted, so that damage to seed buds cannot be caused, and the seed hill-drop planter has unique advantages in the seed hill-drop planting technology. However, the lever type seed throwing structure mostly adopts a collision wheel structure, the seed throwing mechanism is composed of a lever, a tension spring and a collision wheel to take out the seeds from the seed box, and the lever arm is accelerated by utilizing the elastic potential energy of the tension spring or the torsion spring, so that the seeds are thrown into the sowing pipe from the seed throwing spoon; but has the following disadvantages: along with the rotation of the rotating arm, the two processes of inclining the spoon mouth of the seed throwing spoon from the horizontal to 90 degrees and the instantaneous collision of the seed throwing spoon and the collision wheel can cause the seeds to be scattered and are difficult to control, so that the hole sowing precision (the number of the seeds in each hole) is influenced.

The utility model discloses a cam structure produces relative motion between cam and the lever arm, makes the lever arm rotate gradually to the pulling spring produces elastic potential energy, can alleviate the slope of throwing kind of a spoon mouth like this, avoid throwing kind of a spoon and bump the collision of wheel, thereby the seed of solving the transportation is unrestrained, realizes smart volume bunch planting.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned problem that prior art exists, the utility model aims to provide a seed hill-drop planter's cam is thrown kind of structure can alleviate the slope of throwing kind of spoon, avoid throwing kind of spoon and bump the collision of wheel to solve and throw kind of in-process seed unrestrained, realize accurate variable volume hill-drop.

In order to solve the technical problem, the utility model discloses a technical scheme as follows: a kind of structure is thrown to seed hill-drop planter's cam, includes kind of a seed case and sets up the throwing kind of device in kind of a seed case, throw kind of device including running through kind of a seed case's power shaft, through the axle sleeve around establish at the epaxial swinging boom of power shaft and with the swinging boom be close to power shaft one end lateral wall swing joint's lever arm, power shaft passes through the motor drive that kind of a seed case set up outward, the one end lateral wall that power shaft was kept away from to the lever arm can be dismantled and is connected with the seed throwing spoon, the epaxial cover of power is equipped with the cam, cam one end is passed through slide bearing and is supported on power shaft, the other end fastening is on kind of a seed case's inner wall, the wheel outer fringe elevation point of cam is inconsistent with the one end that the lever arm is close to power shaft, a side that swinging boom and, and a seed discharging box for throwing seeds by the seed throwing spoon is further arranged on one side of the rotating arm in the seed box, and a seed discharging port is formed in the bottom of the seed discharging box.

As a further improvement, the swinging boom sets up 3 with axle sleeve integrated into one piece's vane type swinging boom, its equidistance along the circumferencial direction.

As a further improvement of the utility model, the seed throwing device and the seed discharging box are both arranged in a plurality of ways, and the position one-to-one correspondence of the seed throwing device and the seed discharging box is arranged at each way.

As a further improvement of the utility model, the seed discharging box is in a trapezoidal shape, and the inner diameter of the seed discharging box is gradually reduced from top to bottom.

Compared with the prior art, the utility model, following beneficial effect has:

the realization of accurate variable hill planting is a key technology of the seed hill planting, the agricultural cost and the yield are directly determined, and the popularization of the seed hill planter is determined whether the accurate variable can be realized. The utility model discloses a seed throwing structure is thrown to the cam, can alleviate the slope of seed throwing spoon, avoids the seed throwing spoon and bumps the direct collision of wheel to solve the unrestrained problem of seed in-process seed of throwing, realize accurate variable bunch planting.

Drawings

FIG. 1 is a schematic side view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic view of the connection between the power shaft and the rotating arm and the lever arm of the present invention;

FIG. 4 is a schematic side view of the cam of the present invention;

FIG. 5 is a schematic cross-sectional view of the cam of the present invention;

in the drawings: 1. a seed box; 2. a power shaft; 3. a rotating arm; 4. a lever arm; 5. seed throwing; 6. a cam; 7. a torsion spring; 8. a limit screw; 9. a seed discharging box; 10. and (7) a pin shaft.

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.

As shown in fig. 1-5, the utility model relates to a seed throwing structure of cam of seed hill planter, comprising a seed box 1 and a seed throwing device arranged in the seed box 1, wherein the seed throwing device comprises a power shaft 2 penetrating through the seed box 1, a rotary arm 3 arranged on the power shaft 2 and a lever arm 4 movably connected with the rotary arm 3 and close to one end side wall of the power shaft 2, the power shaft 2 is driven by a motor arranged outside the seed box 1, one end side wall of the lever arm 4 far away from the power shaft 2 is detachably connected with a seed throwing spoon 5, the power shaft 2 is sleeved with a cam 6, one end of the cam 6 is supported on the power shaft 2 through a sliding bearing, the other end is fastened on the inner wall of the seed box 1, the wheel outer edge elevation point of the cam 6 is abutted against one end of the lever arm 4 close to the power shaft 2, one side surface of the rotary arm 3 and the lever arm 4, which are positioned on the cam 6, is, the utility model discloses a seeding machine, including swinging boom 3, power shaft 2, seed box 1, seed spoon 5, seed metering case 9, the one side lateral wall of swinging boom 3's one end of keeping away from power shaft 2 is provided with the spacing stop screw 8 of confession lever arm 4, seed box 1 interior swinging boom 3 still is provided with the seed metering case 9 that supplies the seed throwing spoon 5 to throw the kind, seed metering case 9 bottom is provided with the seed.

As shown in fig. 1 and 3, the rotary arm 3 and the shaft sleeve are integrally formed as blade-type rotary arms, and 3 rotary arms are provided at equal intervals in the circumferential direction.

As shown in fig. 1, the rotating arm 3 is hinged to the lever arm 4 by a pin 10, so that the rotating arm 3 and the lever arm 4 can move relatively.

Specifically, the seed throwing device and the seed discharging box 9 are arranged in a plurality of numbers, and the positions of each seed throwing device and the seed discharging box 9 are in one-to-one correspondence. The seed throwing device and the seed sowing box 9 can be respectively set to be 8 or 12, the power shaft 2 is driven to rotate by a motor arranged outside the seed box 1, so that the rotating arm 3 and the lever arm 4 are driven to rotate, and quantitative seed throwing can be realized.

As shown in FIG. 1, the seed discharging box 9 has a trapezoidal shape, and the inner diameter thereof is gradually reduced from the top to the bottom. After being thrown by the seed throwing spoon 5, the seeds enter the seed discharging box 9, the width of the cross section of the seed discharging box 9 is gradually reduced, and the seed throwing spoon 5 is favorable for better seed throwing.

The specific seed throwing process comprises the following steps: the lever arm 4 is tightly leaned on the limit screw 8 under the action of the torsion spring 7, the starting motor drives the power shaft 2 to rotate, so that the rotating arm 3 and the cam 6 are driven to rotate in the same direction, a certain amount of seeds are dug when the seed throwing spoon 5 passes through the bottom of the seed box 1, the lever arm 4 rotates anticlockwise gradually under the action of the cam 6, the torsion spring 7 is pulled to generate elastic potential energy, after the highest point of the cam 6 is rotated, the elastic potential energy of the torsion spring 6 is rapidly released, the seed throwing spoon 5 ejects the seeds, and the seeds are thrown into the seed discharging box 9, so that seed throwing is completed. When the rotating arm 3 rotates for one circle, each seed throwing spoon 5 takes seeds from the bottom of the seed box 1 once and throws the seeds to the seed discharging box 9 once.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a seed hill-drop planter's cam throws kind of structure which characterized in that: including kind of seed case (1) and the throwing kind of device of setting in kind of seed case (1), throw kind of device including running through power shaft (2) of kind of seed case (1), through the axle sleeve around establishing swinging boom (3) and swinging boom (3) on power shaft (2) being close to power shaft (2) one end lateral wall swing joint's lever arm (4), power shaft (2) are through the motor drive who sets up outside kind of seed case (1), the one end lateral wall that power shaft (2) were kept away from in lever arm (4) can be dismantled and be connected with throwing kind spoon (5), the fixed cover is equipped with cam (6) on power shaft (2), cam (6) one end is supported on power shaft (2) through slide bearing, and the other end fastening is on the inner wall of kind of seed case (1), the wheel outer fringe elevation point of cam (6) is inconsistent with the one end that lever arm (4) is close to power shaft (2), a side face, located on the cam (6), of the rotating arm (3) and the lever arm (4) is connected with a torsion spring (7), one end side wall, far away from the power shaft (2), of the rotating arm (3) is provided with a limiting screw (8) for limiting the lever arm (4), one side of the rotating arm (3) in the seed box (1) is further provided with a seed discharging box (9) for throwing the seed from the seed throwing spoon (5), and the bottom of the seed discharging box (9) is provided with a seed discharging port.

2. The seed throwing structure of the seed hill planter according to claim 1, wherein: the rotating arm (3) and the shaft sleeve are integrally formed blade type rotating arms, and 3 rotating arms are arranged at equal intervals along the circumferential direction.

3. The seed throwing structure of the seed hill planter according to claim 1, wherein: the rotating arm (3) is hinged with the lever arm (4) through a pin shaft (10).

4. The seed throwing structure of the seed hill planter according to claim 1, wherein: the seed throwing device and the seed discharging box (9) are arranged in a plurality of numbers, and the positions of each seed throwing device and the positions of the seed discharging box (9) are in one-to-one correspondence.

5. The seed throwing structure of the seed hill planter according to claim 1, wherein: the seed discharging box (9) is in a trapezoidal shape, and the inner diameter of the seed discharging box is gradually reduced from top to bottom.