CN102047789B - Up and down reciprocating type seed arranging device - Google Patents

Abstract

The invention belongs to the field of parts of seeding machines for guiding seeds and seeding and discloses an up and down reciprocating type seed arranging device which comprises a driving mechanism, a seed arranging mechanism and a seed box, wherein a land wheel driven power shaft (1) of the seeding machine is used for driving a cam (2) to rotate and further driving a base (7) to do reciprocating motion up and down; when the upper end surface of a seed filling device (11) moves upwards till being flush with the lower end surface of a seed arranging hole (13), the hole wall of the seed arranging hole (13) can limit continuous upward movement of the seed filling device (11), a spring (6) is compressed, a seed arranging rod (5) can move upwards continuously under the push of the cam (2) and enter into the seed arranging hole (13), and seeds can be pushed out of the seed arranging hole (13) by relying on the seed arranging rod (5) and enter into a seed arranging pipe (4) through an oblique chute (14) for completing seed arrangement. With the adoption of the device, the seed filling is rapid and sufficient, and the seed injury rate is low; the function of regulating the seeding rate can be realized; and the structure is simple, the use is convenient, and the performances are reliable.

Description

Up and down reciprocating seed metering device

technical field

The invention belongs to the field of seeder parts for seed guiding and sowing, in particular to an up and down reciprocating seed metering device applied to a corn seeder.

Background technique

At present, with the continuous improvement of seed quality, the demand for precision seeding is also increasing. Precision seeding can save good seeds and reduce costs; it does not need thinning and reduces labor intensity; precision sowing field plants are evenly distributed to achieve reasonable dense planting, which is conducive to seedling growth. This technology has been widely used in row crops such as corn and soybeans on demand.

Seed meters are generally divided into two categories: pneumatic seed meters and mechanical seed meters. Pneumatic seed metering device has the advantages of less strict requirements on seed shape, strong adaptability, and less seed damage, but its structure is complicated, the body is heavy, power consumption is large, and the cost is high, so it is generally used in large-scale seeders. The mechanical seed metering device has the advantages of simple structure, low cost, and convenient maintenance and replacement. It occupies a certain proportion in practical applications and is more suitable for small seeders. However, at present, mechanical seed metering devices have strict requirements on seed shape and size, cannot adapt to high-speed operation, low seed metering accuracy, and high seed damage rate. For example, the existing external groove wheel type, socket type, and horizontal disc type , Combined disc type, finger clip type seed metering device and so on. Although the finger clip seed metering device developed in the United States can achieve high-speed operation and high seed metering accuracy, it has high requirements for materials, high processing accuracy, high cost, difficult processing, difficult maintenance, and requirements for seed shape and size. Advanced issues do not meet the requirements of small plots, low cost, and low prices for farmers in our country.

Contents of the invention

The purpose of the present invention is to overcome the complex structure, high power consumption, bulky body of the pneumatic seed metering device in the background technology, and the strict requirements on the seed size, low seed metering accuracy and seed damage of the mechanical seed metering device, and provide The utility model relates to an up and down reciprocating seed metering device.

In order to achieve the above object, the present invention provides the following technical solutions:

An up and down reciprocating seed metering device is characterized in that:

The up and down reciprocating seed metering device includes:

A drive mechanism, the drive mechanism comprising a power shaft 1, a cam 2 mounted on the power shaft 1, and a base 7 in contact with the cam 2;

A seeding mechanism, which includes a seeding pipe 4, a seeding rod 5, a spring 6, a seed charger 11, a seeding hole 13, and an inclined chute 14; wherein, the lower end of the seeding rod 5 is welded on the base 7 On, the upper end of the seed rod 5 is covered with a spring 6 and a seed filling device 11;

Seed box, described kind box comprises upper hollow conical box 8, lower hollow conical box 9; Wherein,

The seeding hole 13 is located at the upper end of the upper hollow conical box 8, and the seeding pipe 4 is located under the side of the seeding hole 13, and is connected with the seeding hole 13 through an inclined chute 14;

The seed rod 5 is located below the seed hole 13 , the diameter of the seed rod 5 is smaller than the diameter of the seed hole 13 , and the outer diameter of the seed filler 11 sleeved thereon is larger than the diameter of the seed hole 13 .

Compared with the prior art, the beneficial effects of the present invention are as follows: 1) The seed filling device can quickly and fully fill the seeds, no need for a seed brush for seed discharge, and the seed damage rate is low; 2) By changing the size of the seed filling device, the sowing rate can be adjusted , so as to achieve precise seeding; 3) simple structure, easy to use, and reliable performance. Therefore, the present invention is used in a corn seeder, which is beneficial to realizing precision sowing, reducing seed discharge, and promoting the development of low-carbon agriculture.

Description of drawings

Fig. 1 is the upper and lower isometric axonometric schematic diagrams of the reciprocating seed metering device of the present invention;

Fig. 2 is the front view of the up and down reciprocating seed metering device of the present invention;

Fig. 3 is the top view of the up and down reciprocating seed metering device of the present invention;

Fig. 4 is a side view of the up and down reciprocating seed metering device of the present invention;

Fig. 5 is a schematic diagram of the up and down reciprocating seed metering device of the present invention;

Fig. 6 is a partially enlarged schematic diagram of the upper end of the seed metering device in area A in Fig. 2 .

reference sign

1 is the power shaft, 2 is the cam, 3 is the bracket, 4 is the seed tube, 5 is the seed rod, 6 is the spring, 7 is the base, 8 is the upper hollow conical box, 9 is the lower hollow conical box, 10 For adorning the seed opening, 11 is a seed filling device, 12 is a seed filling hole, 13 is a seed discharge hole, and 14 is an inclined chute.

Detailed ways

The specific structure and working process of the embodiment of the present invention are described below in conjunction with accompanying drawing:

As shown in Figures 1-6, the up and down reciprocating seed metering device is generally installed on the frame of the seeder through the bracket 3, including a driving mechanism mainly composed of a power shaft 1, a cam 2, and a base 7; mainly composed of a seeding pipe 4 , a seeding rod 5, a spring 6, a seed filling device 11, a seeding hole 13, an inclined chute 14, etc.; a seeding box mainly composed of an upper hollow conical box 8, a lower hollow conical box 9, etc. It consists of three parts.

The seed filler 11 and the spring 6 are set on the upper end of the seed rod 5 from top to bottom in turn, and the lower end of the seed rod 5 is welded on the base 7. The power of the power shaft 1 is provided by the ground wheel of the planter, which drives the cam 2 Rotate, and then drive the base 7 to reciprocate up and down. The upper end surface of the seed rod 5 is inclined (the angle of inclination is 45-55°), and its diameter is slightly smaller than the aperture of the seed hole 13 of the upper hollow conical box 8 by 2-3mm, to ensure that the seed rod 5 can be placed in the seed hole. 13 moves up and down freely, and the outer diameter of the seed filling device 11 is about 5 mm larger than the aperture 13 of the seeding hole 13 of the upper hollow conical box 8. Normally, the lower end surface of the seed hole 13 will limit the seed filler 11 to limit the continuous upward movement of the seed filler 11, while the seed rod 5 continues to move upward under the push of the cam 2, and the spring 6 is compressed at this time. The upper port of the seed pipe 4 is lower than the seed hole 13, and is located about 50 mm below the side of the seed hole 13. The two are connected by an inclined chute 14 to ensure that the seeds pushed out by the seed rod 5 along the seed hole 13 Smoothly enter the seeding pipe 4 to complete the seeding.

During operation, the ground wheel of the planter drives the power shaft 1 to rotate through the chain, thereby driving the cam 2 to rotate, and the cam 2 rotates to drive the seed rod 5 to reciprocate up and down. When the cam 2 was positioned at the near angle of repose, the seed bar 5 was positioned at the lowest end, and now the seeds in the seed box slipped into the seed filling device 11 under the action of gravity and entered the filling hole 12 to complete the filling. With the rotation of the cam 2, the seed rod 5 drives the seed filler 11 and the spring 6 to move upward together. When the upper end surface of the seed filler 11 is flush with the lower end surface of the seed hole 13, the seed hole 13 will restrict the seed filler. 11 continues to move up, and now the seed rod 5 will promote the seeds to continue to move up along the seed hole 13, and the spring 6 is compressed. When the cam 2 turned to the far angle of repose, the seed rod 5 reached the highest point. Seed bar 5 utilizes the slope at the upper end to discharge seeds from seed hole 13, and seeds enter seed pipe 4 along inclined chute 14 to complete seeding. When the cam 2 continued to rotate, the seed rod 5 descended under the action of the spring 6 and its own gravity to carry out the next filling and seeding process. The invention is applicable to the seeder for row crops such as corn and soybean.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be Modifications or equivalent replacements of the technical solutions without departing from the spirit and scope of the technical solutions of the present invention shall be covered by the scope of the claims of the present invention.

Claims (3)

1. A kind of up and down reciprocating seed metering device, it comprises drive mechanism, seed metering mechanism and seed box, is characterized in that: The drive mechanism includes a power shaft (1), a cam (2) mounted on the power shaft (1), and a base (7) in contact with the cam (2); The seed-discharging mechanism comprises a seed-discharging pipe (4), a seed-discharging rod (5), a spring (6), a seed filling device (11), a seed-discharging hole (13), and an inclined chute (14); wherein, the seed-discharging The lower end of the rod (5) is welded on the base (7), and the upper end of the seed metering rod (5) is covered with the spring (6) and the seed filling device (11); The seed box includes an upper hollow conical box (8) and a lower hollow conical box (9); wherein, the seed hole (13) is located at the upper end of the upper hollow conical box (8), and the seed pipe (4) is located at the top of the hollow conical box (8). The side below of the seed hole (13), and is connected with the seed hole (13) by an inclined chute (14); the seed rod (5) is positioned below the seed hole (13), and the seed rod (5) The diameter is smaller than the aperture of the seeding hole (13), and the outer diameter of the described seed filling device (11) sleeved thereon is larger than the aperture of the seeding hole (13). 2. The up-and-down reciprocating seed metering device according to claim 1, characterized in that: the upper end surface of the seed metering rod (5) is an inclined surface, and the included angle with the horizontal direction is 45-55°. 3. The up and down reciprocating seed metering device according to claim 1, characterized in that: the diameter of the seed metering rod (5) is 2-3mm smaller than the diameter of the seed metering hole (13), and the seed filling device (11 ) The outer diameter is 5mm larger than the aperture of the seeding hole (13).

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