CN216700939U - Seeding rate adjusting and seeding grain distance adjusting double-adjusting combined seed sowing device - Google Patents

Abstract

A seeding rate adjusting and seeding grain distance adjusting double-adjusting combined seed sowing device, belonging to agricultural machinery; the device comprises a support plate, an upper disc, a circular arc seed box and a seed box limiting cover cylinder which are sequentially arranged in an annular frame from bottom to top through a roller for supporting, wherein a track disc is fixedly arranged on the lower end surface of the support plate through a bolt; the double-regulation seeding device realizes double regulation of seeding quantity and seeding grain distance on one seeding device, and has unique and reasonable structure, wide application range, strong adaptability and simple and convenient regulation operation.

Description

Seeding rate adjusting and seeding grain distance adjusting double-adjusting combined seed sowing device

Technical Field

The invention belongs to agricultural machinery, and mainly relates to a mechanical seed sowing device for adjusting the sowing quantity and the sowing grain distance.

Background

In order to meet the agricultural requirements of different seeding operations, the seeding quantity and the seeding grain distance of the seeding apparatus on a unit area need to be adjusted. The traditional adjusting method is completed and realized by changing the transmission ratio of a chain wheel between a driving land wheel of a seeding machine and a seed metering shaft of a seed metering device, namely, when the seeding amount per unit area is increased, the seeding grain distance is reduced; when the seeding quantity is reduced, the seeding grain distance is increased. However, in practical production and use, the seeding pitch does not need to be changed, even the seeding plant pitch is increased without being reduced when the seeding rate per unit area is increased, or the seeding rate per unit area needs to be singly increased or reduced when the seeding pitch is not changed, or the seeding rate per unit area and the seeding pitch need to be simultaneously and respectively changed and adjusted, and obviously, the various seeding devices in the prior art cannot meet and satisfy the operation adjustment requirements.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and the practical requirements of sowing operation are combined, so that a seeding device with the double-adjustment combination of the sowing quantity adjustment and the sowing grain distance adjustment is researched and designed, and the aim of realizing the same double adjustment of the sowing quantity and the sowing grain distance by one device is fulfilled according to the sowing agricultural requirements.

The invention aims to realize the following technical proposal that a support plate is coaxially and rotatably arranged on the bottom wall of the inner side of an annular frame through a roller, a track disc is fixedly arranged on the bottom wall surface of the support plate through a bolt coaxially, four arc-shaped grooves are uniformly distributed on the wall surface of an inner hole of the track disc along the circumferential direction, four lower seed holding tubes are uniformly distributed on the support plate along the circumferential direction and can be radially and movably assembled, the lower end surfaces of the four lower seed holding tubes are in contact fit with the bottom wall surface of the inner side of the annular frame, an upper disc is coaxially arranged at the upper part of the support plate and is in threaded insertion fit with a seed amount adjusting knob, the lower end part of the seed amount adjusting knob is axially and radially positioned and can be circumferentially and rotatably matched with the support plate, four upper seed holding tubes are uniformly distributed on the upper disc along the circumferential direction and can be radially and movably assembled, and the upper seed holding tubes are in insertion fit with the corresponding lower seed holding tubes in an up-and down moving manner, the seed distance adjusting knob is radially and axially positioned and circumferentially and rotatably inserted into a central through hole of the seeding rate adjusting knob, the seed distance adjusting disc is fixedly arranged on the lower end part of the seed distance adjusting knob, two ends of a connecting rod are respectively hinged with the seed distance adjusting disc and the lower seed containing pipe, a locking device fixedly arranged on the upper disc respectively locks the seeding rate adjusting knob and the seed distance adjusting knob after adjustment operation, an arc seed box is supported and assembled on the upper side part of the upper disc, a seed inlet is arranged on the bottom wall of the arc seed box, a seeding port is arranged on the bottom wall of the annular frame, the seed inlet is in overlapped communicated fit or staggered closed fit with the upper seed containing pipe, the seed box port is in overlapped communicated fit or staggered closed fit with the lower seed containing pipe, a seed box limiting cover cylinder is buckled and installed on the outer side part of the upper end of the arc seed box in a way of relatively moving up and down, and the seed box limiting cover cylinder is radially positioned with the arc seed box through a slide way, the seed box limiting cover cylinder is fixedly arranged on the annular frame, the upper end face and the lower end face of the pressure spring are respectively contacted with the seed box limiting cover cylinder and the arc-shaped seed box, the bottom end face of the arc-shaped seed box is in extrusion contact fit with the upper end face of the upper disc, the power frame is arranged at the lower side part of the track disc in an assembling manner, the circular inner end of the power frame is sequentially in clamping contact or contact separation fit with four arc-shaped grooves on the inner hole wall face of the track disc, the concave outer end of the power frame is in toggle contact fit or contact separation fit with four lower seed containing tubes, a bevel gear transmission box is fixedly arranged at the outer part of the lower end of the annular frame, a driving sprocket is fixedly arranged on a power input shaft of the bevel gear transmission box, and a power output shaft of the bevel gear transmission box is fixedly connected with the power frame, so that the double-adjustment seed sowing quantity and seed particle distance adjustment combined seed sowing device is formed.

The invention can respectively complete and realize the adjustment of the seeding quantity and the adjustment of the seeding grain distance on the same seeding apparatus without mutual interference and influence according to different seeding agricultural technical requirements, and has the characteristics of novel, unique and reasonable structure, wide application range, strong adaptability, high generalization degree, simple and convenient adjustment operation, rapidness, good adjustment quality and reliable use.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a seeding rate adjusting and seeding grain distance adjusting double-adjusting combined seed sowing device;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a bottom three-dimensional view of FIG. 1;

FIG. 5 is a bottom view of a structure for assembling a limiting cover cylinder of a seed box and an arc-shaped seed box;

fig. 6 is a schematic view of the pitch adjustment mechanism.

Description of part numbers in the figures:

1. the device comprises a locking device, 2, a seed box limiting cover cylinder, 3, an arc-shaped seed box, 4, an upper disc, 5, an upper seed containing tube, 6, a lower seed containing tube, 7, a power frame, 8, a roller, 9, a driving sprocket, 10, a power input shaft, 11, a bolt, 12, a power output shaft, 13, a bevel gear transmission box, 14, a track disc, 15, a ring frame, 16, a supporting plate, 17, a connecting rod, 18, a grain distance adjusting disc, 19, a seeding amount adjusting knob, 20, a grain distance adjusting knob, 21, a pressure spring, 22, a seed inlet, 23, a seed discharging port, 24, a slide way, 25 and an arc-shaped groove.

Detailed Description

The following detailed description of the inventive embodiments is provided in connection with the accompanying drawings. A seeding rate adjustment and seeding grain distance adjustment double-adjustment combined seed sowing device is characterized in that a support plate 16 is coaxially and rotatably installed on the inner side bottom wall of an annular frame 15 through a roller 8, a track disc 14 is fixedly installed on the bottom wall surface of the support plate 16 through a bolt 11 coaxially, four arc-shaped grooves 25 are uniformly distributed on the inner hole wall surface of the track disc 14 along the circumferential direction, four lower seed containing tubes 6 are uniformly distributed on the support plate 16 along the circumferential direction and can be radially moved, the lower end surfaces of the four lower seed containing tubes 6 are in contact fit with the inner side bottom wall surface of the annular frame 15, an upper disc 4 is coaxially arranged at the upper part of the support plate 16, the upper disc 4 is in threaded insertion fit connection with a seeding rate adjustment knob 19, the lower end part of the seeding rate adjustment knob 19 is axially and radially positioned and circumferentially and rotatably matched with the support plate 16, four upper seed containing tubes 5 are uniformly distributed on the upper disc 4 along the circumferential direction and can be radially moved, the upper seed containing pipe 5 and the corresponding lower seed containing pipe 6 are inserted and matched in a vertically movable manner, the grain distance adjusting knob 20 is radially and axially positioned and circumferentially and rotatably inserted and installed in a central through hole of the seeding rate adjusting knob 19, the grain distance adjusting disc 18 is fixedly installed on the lower end part of the grain distance adjusting knob 20, two ends of the connecting rod 17 are respectively hinged with the grain distance adjusting disc 18 and the lower seed containing pipe 6, the locking device 1 fixedly installed on the upper disc 4 respectively locks the seeding rate adjusting knob 19 and the grain distance adjusting knob 20 after adjusting operation, the upper side part of the upper disc 4 is supported and assembled with the arc seed box 3, the seed inlet 22 is arranged on the bottom wall of the arc seed box 3, the seed outlet 23 is arranged on the bottom wall of the annular frame 15, the seed inlet 22 and the upper seed containing pipe 5 are in overlapped communication fit or staggered closed fit, and the seed outlet 23 and the lower seed containing pipe 6 are in overlapped communication fit or staggered closed fit, a seed box limiting cover barrel 2 is buckled and mounted on the outer side part of the upper end of the circular seed box 3 in a relatively up-down moving mode, the seed box limiting cover barrel 2 is radially positioned with the circular seed box 3 through a slide way 24, the seed box limiting cover barrel 2 is fixedly mounted on an annular frame 15, the upper end surface and the lower end surface of a pressure spring 21 are respectively contacted with the seed box limiting cover barrel 2 and the circular seed box 3, the bottom end surface of the circular seed box 3 is in extrusion contact fit with the upper end surface of an upper disc 4, a power frame 7 is mounted at the lower side part of a track disc 14, the circular inner end of the power frame 7 is sequentially in clamping contact or out of contact fit with four circular grooves 25 on the inner hole wall surface of the track disc 14, the concave outer end of the power frame 7 is in shifting contact fit or out of contact fit with four lower seed containing tubes 6, a bevel gear transmission box 13 is fixedly mounted at the outer part of the lower end of the annular frame 15, and a driving sprocket 9 is fixedly mounted on a power input shaft 10 of the bevel gear transmission box 13, and a power output shaft 12 of the bevel gear transmission case 13 is fixedly connected with the power frame 7.

When the seed feeding device is used in operation, seeds in the circular seed box 3 fall into the upper seed containing pipe 5 and the lower seed containing pipe 6 through the seed inlet 22, the lower end surface of the lower seed containing pipe 6 is in contact fit with the bottom wall surface on the inner side of the annular frame 15 to realize seed protection fit of the seeds filled in the lower seed containing pipe 6, the output rotary power sequentially passes through the driving chain wheel 9, the power input shaft 10, the bevel gear transmission case 13 and the power input shaft 12 to drive the power frame 7 to rotate, the power frame 7 stirs the lower seed containing pipe 6 and synchronously drives the supporting plate 16, the track disc 14, the upper seed containing pipe 5 and the upper disc 4 to rotate together, under the matching control of the four circular arc grooves 25 on the track disc 14, the power frame 7 drives the lower seed containing pipe 6, the supporting plate 16, the track disc 14, the upper seed containing pipe 5 and the upper disc 4 to synchronously and circumferentially rotate 90 degrees when the lower seed containing pipe 6 rotates above the seed discharging port 23, 6, discharging the seeds in the container to finish sowing. When the seeding rate is adjusted, the seeding rate adjusting knob 19 is rotated, and under the axial positioning of the supporting disc 16, the seeding rate adjusting knob 19 which is rotated in situ drives the upper disc 4 and the upper seed containing pipe 5 to move upwards or downwards, so that the depth position of the upper seed containing pipe 5 inserted into the lower seed containing pipe 6 is changed, the pipe cavity volumes of the upper seed containing pipe 5 and the lower seed containing pipe 6 are changed, and the seeding rate adjustment is completed; at the moment, the upper disc 4 pushes the arc seed box 3 upwards, the pressure of the pressure spring 21 is increased, and the reliable contact fit between the upper end surface of the upper disc 4 and the bottom end surface of the arc seed box 3 is ensured. When the seeding grain distance is adjusted, the grain distance adjusting knob 20 positioned axially is rotated to drive the grain distance adjusting disc 18 to rotate, the lower seed containing tube 6 is pushed or pulled through the connecting rod 17 to do radial outward extending or retracting displacement on the supporting plate 16, and meanwhile, the lower seed containing tube 6 drives the upper seed containing tube 5 to do synchronous radial outward extending or retracting displacement on the upper disc 4, so that the seeding grain distance adjustment is completed. Then, the seeding rate adjusting knob 19 and the grain distance adjusting knob 20 are firmly locked by the locking device 1, and normal operation after adjustment can be carried out.

Claims (1)

1. The utility model provides a seeding rate is adjusted and is adjusted double-adjusting combination seed metering ware with seeding grain distance which characterized in that: the seeding device is characterized in that a supporting plate (16) is coaxially and rotatably installed on the inner side bottom wall of an annular frame (15) through a roller (8), a track disc (14) is fixedly installed on the bottom wall surface of the supporting plate (16) through a bolt (11) coaxially, four arc-shaped grooves (25) are uniformly distributed on the inner hole wall surface of the track disc (14) along the circumferential direction, four lower seed holding tubes (6) are uniformly distributed on the supporting plate (16) along the circumferential direction and can be radially moved, the lower end surfaces of the four lower seed holding tubes (6) are in contact fit with the inner side bottom wall surface of the annular frame (15), an upper disc (4) is coaxially arranged at the upper part of the supporting plate (16), the upper disc (4) is in threaded insertion fit connection with a seeding quantity adjusting knob (19), the lower end part of the seeding quantity adjusting knob (19) is axially and radially positioned and is rotatably matched with the supporting plate (16) in the circumferential direction, four upper seed containing pipes (5) are uniformly distributed and radially movably assembled on the upper disc (4) along the circumferential direction, the upper seed containing pipes (5) and the corresponding lower seed containing pipes (6) are inserted and matched in a way of moving up and down, the grain distance adjusting knob (20) is radially and axially positioned and circumferentially and rotatably inserted and installed in a central through hole of the seeding rate adjusting knob (19), the grain distance adjusting knob (18) is fixedly installed on the lower end part of the grain distance adjusting knob (20), two ends of the connecting rod (17) are respectively hinged with the grain distance adjusting knob (18) and the lower seed containing pipes (6), a locking device (1) fixedly installed on the upper disc (4) respectively locks the seeding rate adjusting knob (19) and the grain distance adjusting knob (20) after adjustment operation, an arc seed box (3) is supported on the upper side part of the seed outlet disc (4), and a seed inlet box (22) is arranged on the bottom wall of the arc seed box (3), the seed metering opening (23) is arranged on the bottom wall of the annular frame (15), the seed inlet opening (22) and the upper seed containing pipe (5) are in overlapped communicating fit or staggered sealing fit, the seed metering opening (23) and the lower seed containing pipe (6) are in overlapped communicating fit or staggered sealing fit, a seed box limiting cover cylinder (2) is buckled and mounted on the outer side part of the upper end of the circular seed box (3) in a manner of relatively moving up and down, the seed box limiting cover cylinder (2) is radially positioned with the circular seed box (3) through a slide way (24), the seed box limiting cover cylinder (2) is fixedly mounted on the annular frame (15), the upper end surface and the lower end surface of a pressure spring (21) are respectively contacted with the seed box limiting cover cylinder (2) and the circular seed box (3), the bottom end surface of the circular seed box (3) is in extrusion contact fit with the upper end surface of the upper disc (4), and the power frame (7) is mounted at the lower side part of the track disc (14), the circular inner end of the power frame (7) is sequentially in clamping contact or contact separation fit with four arc-shaped grooves (25) on the inner hole wall surface of the track disc (14), the concave outer end of the power frame (7) is in shifting contact fit or contact separation fit with four lower containing pipes (6), a bevel gear transmission case (13) is fixedly arranged at the outer part of the lower end of the annular frame (15), a driving chain wheel (9) is fixedly arranged on a power input shaft (10) of the bevel gear transmission case (13), and a power output shaft (12) of the bevel gear transmission case (13) is fixedly connected with the power frame (7).

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