Lightweight seed-shooting seed meter

Abstract

Light seed bullet shooting seed meter belongs to agricultural machinery; the center shaft with driving wheel is fixed on the seat plate, the circular seed conveying ring with radial seed containing through hole is fixed on the seat plate through support rod, the seed box and semicircular seed protection plate are respectively fixed on the outer side of the circular seed conveying ring, the open ring guide rail which is fixed on the semicircular seed protection plate through fixing rod is fixed between the center shaft and the circular seed conveying ring, the connecting rod is fixed on the center shaft, the roller frame with roller shaft and roller is movably sleeved on the connecting rod, the pressure spring is sleeved on the connecting rod, the roller is extruded and contacted on the inner wall of the open ring guide rail, the seed metering bullet push plate fixed on the roller frame is movably inserted into the radial seed containing through hole on the circular seed conveying ring; the device is especially suitable for light seed planting, the structure is unique, novel and reasonable, the seed metering is reliable, the operation efficiency is high, the failure is less and the seed missing rate is low.

Description

TECHNICAL FIELD

[0001] The present application belongs to agricultural machinery, and mainly relates to a light seed ejection type seed sowing device suitable for light seeds. BACKGROUND

[0002] Traditional and current mechanical seed sowing devices, including seed sowing devices of the following types: seed sowing device with an outer groove wheel, seed sowing device with a hole wheel, side filling disc type seed sowing device, spoon wheel type seed sowing device and finger clamp type seed sowing device, etc., all use the gravity generated by the seeds themselves to separate the seed sowing device from the seed sowing operation part to complete the seed sowing operation. In years of production and operation practice, the seed sowing method relying only on the weight of the seeds has poor operation effect and is prone to seed missing and holes, especially for light seeds, because the mass of the light seeds is small, the gravity generated by the light seeds is smaller, and the seed missing and hole rate is higher, which affects the operation quality and effect of the seed sowing device. Therefore, it is necessary to solve the above problems and develop a seed sowing device that can guarantee and improve the seed sowing operation of light seeds. SUMMARY

[0003] The purpose of the present application is to solve the problems existing in the prior art, and to develop a light seed ejection type seed sowing device in combination with the actual needs of the current light seed sowing operation, so as to achieve the purpose of no seed residue, no blockage, reliable seed sowing, good effect, and reduction of seed missing rate and hole rate.

[0004] The purpose of the present application is achieved in that: a center shaft is fixed horizontally on a positioning and rotatable seat plate, a driving wheel is fixed on the outer end of the center shaft, a circular seed conveying ring is fixed on the seat plate by a support rod at the middle outer side of the center shaft, a plurality of radial seed containing through holes are evenly distributed on the circumferential direction of the ring wall of the circular seed conveying ring, a seed box is positioned and arranged on the outer side of the circular seed conveying ring, the seed box is in communication or closed with the radial seed containing through holes, a semicircular seed protection plate is fixed and arranged on one side of the circular seed conveying ring, an open ring guide rail is fixed between the outer side of the center shaft and the inner side of the circular seed conveying ring, the open ring guide rail is fixed with the semicircular seed protection plate by a fixed rod, the open ring guide rail is composed of a circular segment guide rail and an involute segment guide rail, an opening is arranged between the lower ends of the circular segment guide rail and the involute segment guide rail, a connecting rod is radially arranged and fixed on the middle part of the center shaft and located on the inner side of the open ring guide rail, a roller frame is axially and reciprocally movably sleeved on the connecting rod, a roller is rotatably mounted on the roller frame by a roller shaft, the roller is in contact with the inner wall of the open ring guide rail, a compression spring is sleeved on the connecting rod, the inner end of the compression spring is axially positioned on the connecting rod, the outer end of the compression spring is in extrusion contact with the roller frame, the roller is always extruded on the inner wall of the open ring guide rail, a seed ejecting plate is fixed on the roller frame, the seed ejecting plate is radially and reciprocally movably inserted into the radial seed containing through hole on the circular seed conveying ring, thereby forming a light seed ejecting type seed sowing device.

[0005] The present application adopts a fast and strong ejecting seed sowing method to complete the seed sowing of light seeds, overcomes and solves the technical problems existing in the prior art which relies on the gravity generated by the weight of the seeds for seed sowing, has the characteristics of novel, unique, reasonable structure, reliable seed sowing, high seed sowing efficiency, good effect, few operation failures and low seed missing rate, and especially provides technical support for high quality seed sowing of light seeds. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1 is a three-dimensional schematic view of the overall structure of the light seed ejecting type seed sowing device;

[0007] Figure 2 is a two-dimensional schematic view of the top view of Figure 1 ;

[0008] Figure 3 is an A-A sectional view of Figure 2 ;

[0009] Figure 4 is an enlarged three-dimensional view of part B of Figure 3 ;

[0010] Figure 5 is a schematic view of the structure of the open ring guide rail.

[0011] Explanation of reference numerals in the drawings:

[0012] 1. Circular seed conveying ring, 2. Seat plate, 3. Radial seed containing through hole, 4. Support rod, 5. Roller frame, 6. Open ring guide rail, 6-1. Circular segment guide rail, 6-2. Involute segment guide rail, 6-3. Opening, 7. Roller shaft, 8. Semi-circular seed protection plate, 9. Driving wheel, 10. Center shaft, 11. Pressure spring, 12. Roller, 13. Seed box, 14. Seed ejection spring push plate, 15. Connecting rod, 16. Fixed rod. DETAILED DESCRIPTION

[0013] The embodiments of the present application are described in detail below with reference to the accompanying drawings. A light seed ejection type seed metering device is provided, which includes a center shaft 10 fixed horizontally on a seat plate 2 which is positioned and configured to rotate, a driving wheel 9 fixed on the outer end of the center shaft 10, a circular seed conveying ring 1 fixed integrally on the seat plate 2 by a support rod 4 at the middle outer side of the center shaft 10, a plurality of radial seed containing through holes 3 evenly distributed in the circumferential direction on the ring wall of the circular seed conveying ring 1, a seed box 13 positioned and configured on the outer side of the circular seed conveying ring 1, the seed box 13 being in communication or closed with the radial seed containing through holes 3, a semi-circular seed protection plate 8 fixed and configured cooperatively on the outer side of the circular seed conveying ring 1, an open ring guide rail 6 fixed and configured between the outer side of the center shaft 10 and the inner side of the circular seed conveying ring 1, the open ring guide rail 6 being fixed integrally with the semi-circular seed protection plate 8 by a fixed rod 16, the open ring guide rail 6 being composed of a circular segment guide rail 6-1 and an involute segment guide rail 6-2, an opening 6-3 being provided between the lower ends of the circular segment guide rail 6-1 and the involute segment guide rail 6-2, a connecting rod 15 being radially and fixedly arranged on the center shaft 10 at the inner side of the open ring guide rail 6, a roller frame 5 being axially and reciprocally sleeved on the connecting rod 15, a roller 12 being rotatably mounted on the roller frame 5 by a roller shaft 7, the roller 12 being in contact with the inner wall of the open ring guide rail 6, a pressure spring 11 being sleeved on the connecting rod 15, the inner end of the pressure spring 11 being axially positioned on the connecting rod 15, the outer end of the pressure spring 11 being in extrusion contact with the roller frame 5, the roller 12 being extruded against the inner wall of the open ring guide rail 6 at all times, a seed ejection spring push plate 14 being fixed on the roller frame 5, the seed ejection spring push plate 14 being radially and reciprocally inserted into the radial seed containing through hole 3 on the circular seed conveying ring 1.

[0014] The embodiments of the present application are described in detail below with reference to the accompanying drawings. A light seed ejection type seed metering device is provided, which includes a center shaft 10 fixed horizontally on a seat plate 2 which is positioned and configured to rotate, a driving wheel 9 fixed on the outer end of the center shaft 10, a circular seed conveying ring 1 fixed integrally on the seat plate 2 by a support rod 4 at the middle outer side of the center shaft 10, a plurality of radial seed containing through holes 3 evenly distributed in the circumferential direction on the ring wall of the circular seed conveying ring 1, a seed box 13 positioned and configured on the outer side of the circular seed conveying ring 1, the seed box 13 being in communication or closed with the radial seed containing through holes 3, a semi-circular seed protection plate 8 fixed and configured cooperatively on the outer side of the circular seed conveying ring 1, an open ring guide rail 6 fixed and configured between the outer side of the center shaft 10 and the inner side of the circular seed conveying ring 1, the open ring guide rail 6 being fixed integrally with the semi-circular seed protection plate 8 by a fixed rod 16, the open ring guide rail 6 being composed of a circular segment guide rail 6-1 and an involute segment guide rail 6-2, an opening 6-3 being provided between the lower ends of the circular segment guide rail 6-1 and the involute segment guide rail 6-2, a connecting rod 15 being radially and fixedly arranged on the center shaft 10 at the inner side of the open ring guide rail 6, a roller frame 5 being axially and reciprocally sleeved on the connecting rod 15, a roller 12 being rotatably mounted on the roller frame 5 by a roller shaft 7, the roller 12 being in contact with the inner wall of the open ring guide rail 6, a pressure spring 11 being sleeved on the connecting rod 15, the inner end of the pressure spring 11 being axially positioned on the connecting rod 15, the outer end of the pressure spring 11 being in extrusion contact with the roller frame 5, the roller 12 being extruded against the inner wall of the open ring guide rail 6 at all times, a seed ejection spring push plate 14 being fixed on the roller frame 5, the seed ejection spring push plate 14 being radially and reciprocally inserted into the radial seed containing through hole 3 on the circular seed conveying ring 1. Figure 1, work use, the export rotary power through the drive wheel 9, the center axis 10, the seat plate 2, the support rod 4 drive circular seed ring 1 counterclockwise rotation, at the same time, the center axis 10 through the connecting rod 15 drive the roller frame 5, and drive the pressure spring 11, the roller shaft 7, the roller 12, the seed ejection plate 14 complete the same direction synchronous rotation with the circular seed ring 1, under the control of the fixed open ring guide rail 6 and the pressure spring 11, the roller 12 through the roller shaft 7, the roller frame 5 drive the seed ejection plate 14 realize the radial reciprocating motion in the radial seed containing through hole 3 on the circular seed ring 1, fill the seed from the seed box 13 into the radial seed containing through hole 3, and under the escort of the semicircular seed protection plate 8, the seed in the radial seed containing through hole 3 at the lower part is quickly ejected, the seed is completed, continue to rotate counterclockwise, under the control of the open ring guide rail 6, the seed ejection plate 14 is retracted radially in the radial seed containing through hole 3, the pressure of the pressure spring 11 is increased at this time, and the next seed is prepared; in turn, the continuous operation is completed.

Claims

1. A lightweight seed ejector-type seed metering device, characterized in that: A central shaft (10) is fixed horizontally on a rotatable base plate (2). A drive wheel (9) is fixed on the outer end of the central shaft (10). A circular seed conveying ring (1) is fixed to the base plate (2) as a whole by a support rod (4) at the middle outer part of the central shaft (10). Multiple radial seed-accommodating through holes (3) are evenly distributed along the circumference on the ring wall of the circular seed conveying ring (1). A seed box (13) is positioned on the upper outer side of the circular seed conveying ring (1). The seed box (13) and the... The radial seed-carrying holes (3) are interconnected or closed. A semi-circular seed-protecting plate (8) is fixedly arranged on the outside of one side of the circular seed-carrying ring (1). An open annular guide rail (6) is fixedly arranged between the outside of the central shaft (10) and the inside of the circular seed-carrying ring (1). The open annular guide rail (6) is fixedly integrated with the semi-circular seed-protecting plate (8) by a fixing rod (16). The open annular guide rail (6) is constructed by a circular section guide rail (6-1) and an involute section guide rail (6-2). An opening (6-3) is provided between the lower ends of the circular section guide rail (6-1) and the involute section guide rail (6-2). A fixed connecting rod (15) is radially arranged on the middle part of the central shaft (10) and located on the inner side of the open annular guide rail (6). A roller frame (5) is axially reciprocatingly mounted on the connecting rod (15). A roller (12) is rotatably mounted on the roller frame (5) via a roller shaft (7). The roller (12) is in contact with the inner wall surface of the open annular guide rail (6). The pressure spring (11) is fitted onto the connecting rod (15). The inner end of the pressure spring (11) is axially positioned on the connecting rod (15). The outer end of the pressure spring (11) is in a pressing contact with the roller frame (5), so that the roller (12) is always pressed against the inner wall of the open annular guide rail (6). The seed feeding spring push plate (14) is fixed on the roller frame (5). The seed feeding spring push plate (14) can be radially reciprocated and inserted into the radial seed receiving hole (3) on the circular seed conveying ring (1).

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