Bidirectional side-seed-filling high-speed seed-metering device

Abstract

The utility model discloses a bidirectional side-seed-filling high-speed seed-metering device and belongs to agricultural machinery. A left side seed filling disc and a right side seed filling disc are sequentially and fixedly installed on the driving shaft and located in a shell cavity, the left side seed filling disc and the right side seed filling disc are fixedly connected into a whole, and left blind hole indents and left through hole indents are evenly distributed in the circumferential direction and sequentially formed in the circumferential edge of the left side seed filling disc at intervals. A plurality of right blind hole indents and right through hole indents are uniformly distributed on the circumferential edge part of the side seed filling right disc along the circumferential direction in sequence at intervals, the left blind hole indents and the right through hole indents are respectively overlapped, communicated and matched with the right through hole indents and the blind hole indents, and an indent arc-shaped spacing plate is fixedly arranged at the seed filling area part in the shell; the indent arc-shaped spacing plate is inserted into an annular groove between the side seed filling left disc and the side seed filling right disc; the device can adapt to and meet the use requirements of high-speed seed metering operation, and is novel, unique, reasonable and simple in structure, good in seed charging and metering quality, low in cavity rate and high in plant spacing qualification rate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to agricultural machinery, mainly relates to a kind of lateral filling seed mechanical seed metering device. BACKGROUND

[0002] Disc lateral filling seed seed metering device is a kind of traditional mechanical class seed metering device that is used for many years, and is still used till now.The seed metering device of this kind is all adopted the one-way filling seed structure of single disc, and its filling seed efficiency cannot meet and adapt to the use needs of high-speed seed metering operation, and filling seed efficiency is greatly reduced at high-speed operation, and planting density is obviously insufficient, and seedling number is reduced, simultaneously, the size and shape of the hole in lateral filling seed disc are fixed, and the seed filled in it is easily clamped in the hole, and seed discharge speed is different when seed is radially discharged under the action of seed gravity and seed metering disc rotation centrifugal force, and even it is stuck and cannot be discharged, resulting in the decrease of plant distance qualified rate and the increase of hole rate.In recent years, with the rapid development of high-speed seed metering operation, it is necessary and imminent to develop a kind of lateral filling seed seed metering device suitable for high-speed seed metering operation. SUMMARY

[0003] The purpose of the utility model is to solve the problems of the prior art, and a kind of bidirectional lateral filling seed high-speed seed metering device is developed and designed in combination with the actual needs of current high-speed seed metering mechanized operation, to meet the use needs of high-speed seed metering operation, and the purpose of high filling seed efficiency and high planting distance qualified rate is achieved.

[0004] The basic design of the utility model is that lateral filling seed left disc and lateral filling seed right disc are sequentially fixed on driving shaft and located inside the cavity of shell from left to right, the lateral filling seed left disc and the lateral filling seed right disc are fixedly connected into one by closely adhering to the opposite inner end surfaces, a plurality of left blind hole holes and left through hole holes are sequentially provided on the circumferential edge portion of the lateral filling seed left disc and are uniformly distributed and spaced apart in the circumferential direction, a plurality of right blind hole holes and right through hole holes are sequentially provided on the circumferential edge portion of the lateral filling seed right disc and are uniformly distributed and spaced apart in the circumferential direction, the left blind hole holes and the left through hole holes are sequentially and respectively in mutual overlapping communication with the right through hole holes and the right blind hole holes, a hole arc-shaped spacing plate is fixed on the shell and located at the cavity filling seed area portion, the hole arc-shaped spacing plate is inserted into the annular groove between the circumferential edge of the lateral filling seed left disc and the lateral filling seed right disc, and the left blind hole holes and the right through hole holes and the left through hole holes and the right blind hole holes are mutually blocked, thereby forming a bidirectional lateral filling seed high-speed seed metering device.

[0005] The utility model adopts double-disc combination and bidirectional lateral filling seed mode, cooperates with the structure design of hole arc-shaped spacing plate to regulate and change the shape and size of hole, meets the needs of high-speed seed metering operation, greatly improves filling seed efficiency, avoids seed clamping during seed metering, and has the characteristics of novel, unique, reasonable, simple structure, good filling and seed metering quality, low hole rate, high plant distance qualified rate. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1 is the overall structure schematic diagram of the bidirectional side filling high-speed seed sowing device;

[0007] Figure 2 is the assembly structure explosion schematic diagram of the driving shaft, the side filling left disc and the arc-shaped interval plate;

[0008] Figure 3 is the A-direction partial view of Figure 2 ;

[0009] Figure 4 is the B-B direction sectional view of Figure 2 ;

[0010] Explanation of the figure number:

[0011] 1, the shell, 2, the seed inlet, 3, the arc-shaped interval plate, 4, the seed sowing port, 5, the side filling left disc, 5-1, the left blind hole, 5-2, the left through hole, 6, the driving shaft, 7, the side filling right disc, 7-1, the right blind hole, 7-2, the right through hole. DETAILED DESCRIPTION

[0012] The utility model embodiment is described in detail below in combination with the drawings. A bidirectional side filling high-speed seed sowing device, comprising the shell 1 that is equipped with the seed inlet 2 and the seed sowing port 4, the driving shaft 6 is rotatably inserted and is equipped on the central part of the shell 1, the side filling left disc 5 and the side filling right disc 7 are sequentially fixed on the driving shaft 6 and located at the inside part of the cavity of the shell 1 from left to right, the side filling left disc 5 and the side filling right disc 7 are fixedly connected into an integrated whole through the close adhesion of opposite inner end faces, a plurality of left blind holes 5-1 and left through holes 5-2 are sequentially arranged on the circumferential edge part of the side filling left disc 5 and are uniformly distributed and spaced apart from each other in the circumferential direction, a plurality of right blind holes 7-1 and right through holes 7-2 are sequentially arranged on the circumferential edge part of the side filling right disc 7 and are uniformly distributed and spaced apart from each other in the circumferential direction, the left blind hole 5-1 and the left through hole 5-2 are sequentially and respectively in communication with the right through hole 7-2 and the right blind hole 7-1 and are overlapped with each other, the arc-shaped interval plate 3 is fixed on the shell 1 and located at the seed filling area in the cavity, the arc-shaped interval plate 3 is inserted into the annular groove between the circumferential edge of the side filling left disc 5 and the side filling right disc 7, and the left blind hole 5-1 and the right through hole 7-2 and the left through hole 5-2 and the right blind hole 7-1 are mutually blocked.

[0013] When working, the seeds are filled into the cavity of the shell 1 from the seed inlet 2, and the rotary power is transmitted to the left and right side filling discs 5 and 7 through the driving shaft 6, and the left and right through-hole eyes 5-2 and 7-2 on the left and right side filling discs 5 and 7 complete the filling work from the left and right sides in the cavity of the shell 2 by cooperating with the arc-shaped spacing plate 3, thereby improving the filling efficiency by more than one time and meeting the requirement of high-speed seeding. When the seeds continue to rotate, the left and right through-hole eyes 5-2 and 7-2 on the left and right side filling discs 5 and 7 rotate out of the filling area and are separated from the spacing cooperation with the arc-shaped spacing plate 3, and the seeds enter the combined filling hole with large activity degree of freedom formed by the left through-hole eye 5-2, the right blind hole eye 7-1 and the left blind hole eye 5-1, thereby avoiding and eliminating the slow and dead phenomenon of seed discharge. When rotating to the seed discharge area, the seeds in the hole are sequentially and smoothly discharged from the radial direction of the disc under the action of the self-weight of the seeds and the centrifugal force of the left and right side filling discs 5 and 7, thereby greatly improving the qualified rate of plant spacing and reducing the hole rate.

Claims

1. A bidirectional side-filling high-speed seed meter comprising a housing (1) provided with a seed inlet (2) and a seed outlet (4), a driving shaft (6) rotatably inserted and fitted in the central part of the housing (1), characterized in that: On the driving shaft (6), a left side-seeding disc (5) and a right side-seeding disc (7) are sequentially fixed from left to right inside the cavity of the shell (1), the left side-seeding disc (5) and the right side-seeding disc (7) are fixedly connected into an integrated body through close contact of opposite inner end faces, a plurality of left blind hole eyes (5-1) and left through hole eyes (5-2) are sequentially and uniformly distributed and spaced apart from each other on the circumferential edge of the left side-seeding disc (5) in the circumferential direction, a plurality of right blind hole eyes (7-1) and right through hole eyes (7-2) are sequentially and uniformly distributed and spaced apart from each other on the circumferential edge of the right side-seeding disc (7) in the circumferential direction, the left blind hole eyes (5-1) and the left through hole eyes (5-2) are sequentially and respectively in mutual overlapping communication with the right through hole eyes (7-2) and the right blind hole eyes (7-1), a hole eye arc-shaped spacing plate (3) is fixed on the shell (1) and located in the cavity of the shell (1), the hole eye arc-shaped spacing plate (3) is inserted and arranged in an annular groove between the circumferential edges of the left side-seeding disc (5) and the right side-seeding disc (7), and the left blind hole eyes (5-1) and the right through hole eyes (7-2) and the left through hole eyes (5-2) and the right blind hole eyes (7-1) are mutually blocked.

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