CN110679248A - Flexible adjustment seed cleaning device suitable for pneumatic roller type seed sowing device - Google Patents
Flexible adjustment seed cleaning device suitable for pneumatic roller type seed sowing device Download PDFInfo
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- CN110679248A CN110679248A CN201911162500.4A CN201911162500A CN110679248A CN 110679248 A CN110679248 A CN 110679248A CN 201911162500 A CN201911162500 A CN 201911162500A CN 110679248 A CN110679248 A CN 110679248A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/20—Parts of seeders for conducting and depositing seed
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Abstract
A flexible adjustment seed cleaning device suitable for a pneumatic roller type seed sowing device belongs to the technical field of agricultural machinery and comprises seed cleaning units, a seed cleaning adjusting mechanism and a support frame, wherein the number of the seed cleaning units is at least two, each group of the seed cleaning units is fixed on an adjusting shaft of the seed cleaning adjusting mechanism through a positioning pin in an equidistant arrangement mode, each group of the seed cleaning units consists of a three-wing seed cleaning knife, a two-wing seed cleaning knife and a compression spring, and the compression spring is arranged between the three-wing seed cleaning knife and the two-wing seed cleaning knife; the seed cleaning adjusting mechanism comprises an adjusting shaft, a gear pair and a handle, and two ends of the adjusting shaft are fixed on the support frame through check rings; the gear pair consists of two gears which are meshed with each other, wherein one gear is fixed at the shaft end of the adjusting shaft, and the other gear is fixedly connected with the handle; the support frame is fixed on the seed sowing device through bolts; the invention can quickly and conveniently adjust the relative position of the seed cleaning knife and the seed discharging hole on the seed discharging roller, clear the redundant seeds outside the seed discharging hole and ensure the seed discharging quality of the seed discharging device.
Description
Technical Field
The invention belongs to the technical field of agricultural machinery, and particularly relates to a flexible adjustment seed cleaning device suitable for a pneumatic roller type seed sowing device.
Background
The mechanical precision seeding technology is a mechanical planting technology which can reduce the seeding quantity, improve the seeding quality and ensure that seeds have accurate seeding depth, row spacing and plant spacing in the field, and is characterized by saving seeds, saving labor and increasing yield. The precision seeding has many influencing factors, wherein the seeding performance of the seeding apparatus is one of the keys. The precision seed metering device mainly comprises a mechanical type and a pneumatic type, wherein the mechanical type is also divided into a horizontal disc type, a socket type, a vertical spoon wheel type and a finger clamp type, and the pneumatic type is divided into an air suction type, an air blowing type and an air pressure type. Compared with a mechanical type, the pneumatic type seed sowing machine has the characteristics of strong seed adaptability, low breakage rate, simple structure and suitability for high-speed operation, and is increasingly attracted by wide attention. With the promotion of domestic land circulation and the requirement of fine agricultural operation, a pneumatic precision seeder suitable for high-speed operation becomes the mainstream of the market.
The seed cleaning device is used as a key component of the seed metering device, and three important parameters of the seed cleaning device, namely the operation speed, the single-grain rate and the seed leakage rate, are directly influenced. The seed cleaning mode is reasonable, the force is uniform and moderate, and the damage to the seeds is less, so as to ensure the functions of high single-seed rate and low seed leakage rate of the seed sowing device. The seed clearing knives of the prior common seed metering device have the forms of single-side seed clearing, double-side seed clearing and multi-stage seed clearing, so that the higher single-seed rate of the seed metering device can be ensured. The rigid connection mode is generally adopted in the seed cleaning adjustment mode, so that the impact force between the cutting edge of the seed cleaning knife and seeds is high during high-speed operation, the seeds are not protected, and the adjustment is very inconvenient during multi-stage seed cleaning.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a flexible adjustment seed cleaning device suitable for a pneumatic roller type seed sowing device, which can quickly and conveniently adjust the relative position of a seed cleaning knife and a seed sowing hole on a seed sowing roller, clean redundant seeds outside the seed sowing hole and ensure the seed sowing quality of the seed sowing device.
The purpose of the invention is realized by the following scheme: a flexible adjustment seed cleaning device suitable for a pneumatic roller type seed sowing device is characterized by comprising: a seed cleaning unit, a seed cleaning adjusting mechanism and a supporting frame,
the seed cleaning units are at least two groups, each group of seed cleaning units is fixed on an adjusting shaft of the seed cleaning adjusting mechanism through positioning pins in an equidistant arrangement mode, each group of seed cleaning units consists of a three-wing seed cleaning knife, a two-wing seed cleaning knife and a compression spring, and the compression spring is arranged between the three-wing seed cleaning knife and the two-wing seed cleaning knife;
the seed cleaning adjusting mechanism comprises an adjusting shaft, a gear pair and a handle, and two ends of the adjusting shaft are fixed on the support frame through check rings; the gear pair consists of two gears which are meshed with each other, wherein one gear is fixed at the shaft end of the adjusting shaft, and the other gear is fixedly connected with the handle;
the support frame is fixed on the pneumatic roller type seed sowing device through bolts.
Further, the three-fin seed cleaning knife adopts an integrated symmetrical structure, three fins are arranged on the main body of the three-fin seed cleaning knife, the fins on two sides are symmetrically arranged and incline to the fins in the middle, the free end parts of the three fins are in arc shapes and contact with the outer wall of the roller of the seed metering device, shaft tubes for the adjusting shafts to pass through are arranged at the roots of the fins on two sides in a penetrating mode, one ends of the shaft tubes are provided with compression spring sleeves, the compression spring sleeves are arranged on the shaft tubes, the flat end faces are arranged at the ends, the other ends of the shaft tubes are in contact with the positioning pins, and.
Furthermore, two fins are symmetrically arranged on two sides of the central line of the two-fin seed cleaning knife main body, the two fins are arranged in an inward inclined mode, the free end portions of the two fins are in an arc shape and are in contact with the outer wall of the roller of the seed metering device, shaft tubes for the adjusting shafts to penetrate through are arranged at the roots of the two fins in a penetrating mode, one ends of the shaft tubes are sleeved with compression springs and are flat end faces, the other ends of the shaft tubes are in contact with the positioning pins, and the ends are spiral groove end faces.
Further, the positioning pin is an elastic cylindrical pin.
Through the design scheme, the invention can bring the following beneficial effects: the invention provides a flexible adjustment seed cleaning device suitable for a pneumatic roller type seed metering device, which adopts a mode of cleaning seeds at two sides of a seed taking area, can quickly adjust the reasonable distance between two seed cleaning knives of the same seed cleaning unit through a handle, achieves the purpose of flexibly cleaning redundant seeds outside a seed discharging hole on a roller of the seed metering device, and ensures the single seed rate of a precision seeder. The seed cleaning device provided by the invention has the characteristics of simple structure, convenience in adjustment and reliability in use.
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 application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention to the right, and in which:
FIG. 1 is a schematic view of the overall structure of a flexible adjustment seed cleaning device suitable for a pneumatic roller type seed sowing device.
FIG. 2 is a schematic structural diagram of a seed cleaning unit in the present invention.
Fig. 3 is a schematic structural view of an adjusting shaft according to the present invention.
Fig. 4 is a front view of the stand of the present invention.
FIG. 5 is a front view of the three-fin seed cleaning knife of the present invention.
FIG. 6 is a top view of the three-fin seed cleaning blade of the present invention.
FIG. 7 is a front view of the two-wing seed cleaning knife of the present invention.
FIG. 8 is a top view of the two-wing seed cleaning blade of the present invention.
The respective symbols in the figure are as follows: 1-three-wing seed cleaning knife, 2-two-wing seed cleaning knife, 3-positioning pin, 4-compression spring, 5-adjusting shaft, 6-gear pair, 7-handle and 8-supporting frame.
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below with reference to preferred embodiments and the accompanying drawings. As will be appreciated by those skilled in the art. The following detailed description is illustrative rather than limiting in nature and is not intended to limit the scope of the invention.
As shown in fig. 1 to 8, a flexible adjustment seed cleaning device suitable for a pneumatic roller type seed sowing device comprises a seed cleaning unit, a seed cleaning adjustment mechanism and a support frame 8,
the seed cleaning units are at least two groups and can be set according to the number of rows of the rollers of different seed sowing devices, eight groups are adopted in the example, each group of seed cleaning units are fixed on an adjusting shaft 5 of a seed cleaning adjusting mechanism through a positioning pin 3 in an equidistant arrangement mode, each group of seed cleaning units consists of a three-wing seed cleaning knife 1, a two-wing seed cleaning knife 2 and a compression spring 4, and the compression spring 4 is arranged between the three-wing seed cleaning knife 1 and the two-wing seed cleaning knife 2;
the seed cleaning adjusting mechanism comprises an adjusting shaft 5, a gear pair 6 and a handle 7, and two ends of the adjusting shaft 5 are fixed on a support frame 8 through check rings; the gear pair 6 consists of two gears which are meshed with each other, wherein one gear is fixed at the shaft end of the adjusting shaft 5, and the other gear is fixedly connected with the handle 7;
the support frame 8 is fixed on the pneumatic roller type seed sowing device through bolts.
Wherein, the positioning pin 3 is an elastic cylindrical pin.
The three-fin seed cleaning knife 1 is of an integrated symmetrical structure, three fins are arranged in the main body of the three-fin seed cleaning knife 1, the fins on two sides are symmetrically arranged and incline to the fins in the middle, the free end portions of the three fins are in arc shapes and contact with the outer wall of a roller of a seed sowing device, shaft tubes for the adjusting shafts 5 to penetrate through are arranged at the roots of the fins on two sides in a penetrating mode, one ends of the shaft tubes are provided with compression springs 4 in a sleeved mode, the ends are flat end faces, the other ends of the shaft tubes are in contact with positioning pins 3, and the ends are spiral groove end faces.
The two fins are arranged in an inwards inclined mode, the free end portions of the two fins are in an arc shape and are in contact with the outer wall of a roller of a seed metering device, a shaft tube for allowing an adjusting shaft 5 to penetrate is arranged at the root portions of the two fins in a penetrating mode, one end of the shaft tube is sleeved with a compression spring 4 and is a flat end face, the other end of the shaft tube is in contact with a positioning pin 3, and the end of the shaft tube is a spiral groove end face.
The working principle of the invention is as follows: the handle 7 rotates a gear connected with the gear pair 6, the gear is meshed with the gear to drive the adjusting shaft 5 to rotate, the adjusting shaft 5 drives the positioning pin 3 to rotate along with the adjusting shaft, the positioning pin 3 slides into a spiral groove of the shaft tube, and the distance between the three-wing seed cleaning knife 1 and the two-wing seed cleaning knife 2 is changed under the action of the compression spring 4 between the two seed cleaning knives, so that the purpose of removing redundant seeds in a seed suction area of a roller of the seed sowing device is achieved, and the sowing quality of the seed sowing device is ensured.
Claims (4)
1. A flexible adjustment seed cleaning device suitable for a pneumatic roller type seed sowing device is characterized by comprising: a seed cleaning unit, a seed cleaning adjusting mechanism and a supporting frame,
the seed cleaning units are at least two groups, each group of seed cleaning units is fixed on an adjusting shaft of the seed cleaning adjusting mechanism through positioning pins in an equidistant arrangement mode, each group of seed cleaning units consists of a three-wing seed cleaning knife, a two-wing seed cleaning knife and a compression spring, and the compression spring is arranged between the three-wing seed cleaning knife and the two-wing seed cleaning knife;
the seed cleaning adjusting mechanism comprises an adjusting shaft, a gear pair and a handle, and two ends of the adjusting shaft are fixed on the support frame through check rings; the gear pair consists of two gears which are meshed with each other, wherein one gear is fixed at the shaft end of the adjusting shaft, and the other gear is fixedly connected with the handle;
the support frame is fixed on the pneumatic roller type seed sowing device through bolts.
2. The flexible seed cleaning device suitable for the pneumatic roller type seed sowing device according to claim 1, characterized in that: the three-fin seed cleaning knife adopts an integrated symmetrical structure, three fins are arranged on the main body of the three-fin seed cleaning knife, the fins on two sides are symmetrically arranged and incline to the fins in the middle, the free end parts of the three fins are in arc shapes and are in contact with the outer wall of a roller of a seed metering device, shaft tubes for allowing an adjusting shaft to pass through are arranged at the roots of the fins on two sides in a penetrating mode, one end of each shaft tube is sleeved with a compression spring, the end is a flat end face, the other end of each shaft tube is in contact with a positioning pin, and the end is a spiral groove end face.
3. The flexible seed cleaning device suitable for the pneumatic roller type seed sowing device according to claim 1, characterized in that: the two fins are symmetrically arranged on two sides of the central line of the two-fin seed cleaning knife main body, the two fins are arranged in an inward inclined mode, the free end portions of the two fins are in an arc shape and are in contact with the outer wall of a roller of a seed metering device, a shaft tube for an adjusting shaft to penetrate through is arranged at the root portions of the two fins in a penetrating mode, one end of the shaft tube is sleeved with a compression spring, the end is a flat end face, the other end of the shaft tube is in contact with a positioning pin, and the end is a spiral.
4. The flexible adjustment seed cleaning device suitable for the pneumatic roller type seed sowing device according to any one of the claims 1 to 3, characterized in that: the positioning pin is an elastic cylindrical pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911162500.4A CN110679248B (en) | 2019-11-25 | 2019-11-25 | Flexible adjustment seed cleaning device suitable for pneumatic roller type seed sowing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911162500.4A CN110679248B (en) | 2019-11-25 | 2019-11-25 | Flexible adjustment seed cleaning device suitable for pneumatic roller type seed sowing device |
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| CN110679248A true CN110679248A (en) | 2020-01-14 |
| CN110679248B CN110679248B (en) | 2022-03-11 |
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