RU2346422C1 - Seed dresser - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: dresser consists of a frame, a drum, a power transmission and a drive. Drum is made of elastic material and is a spirally-channeled cylinder mounted on driving and output disks. Driving disk is rigidly shaft-mounted. Output disk is axially-displaceable and rotatable on drive shaft; it is provided with a stop, which engages with frame-mounted variable-length retainer.

EFFECT: improved quality of seed dressing.

3 dwg

Description

The invention relates to agriculture, in particular to seed dressing devices.

A device for presowing treatment, containing a rotating drum made in the form of a truncated cone, on the inner surface of which there is a helical groove with a variable pitch decreasing in the direction of movement of the seeds, a large base of the cone is facing the exit of seeds from the drum [1].

Also known is a device for seed treatment, containing a container for seeds in the form of a cylindrical drum mounted on a horizontal axis. Inside the drum, guide elements are fixed for moving the seed layer during processing in the form of blades and means are located for distributing the filler or processing substance [2].

Known dresser comprising a drum, a mechanical transmission and a drive [3].

A disadvantage of the above devices is that when the drum rotates at a constant angular velocity, the seeds are carried up by friction forces and, having reached a certain angle of elevation, roll down, while the intensity of intralayer mixing and, consequently, the uniformity of applying the pesticide across the thickness of the processed grain mass are low. In addition, these devices have limited performance, since with increasing frequency of rotation of the drum the processed grain is pressed against the inner wall of the drum due to increased centrifugal forces and the intensity of mixing seeds with a pesticide decreases.

The invention allows to obtain a new technical effect - to increase the intensity of mixing the seeds with the pesticide in layers.

This technical effect is achieved by the fact that the drum is made of elastic material in the form of a spiral-corrugated cylinder mounted on the drive and output disks, the drive disk is rigidly mounted on the shaft, the output disk is made with the possibility of axial movement and rotation on the drive shaft and is equipped with a stop interacting with a variable length lock mounted on the frame.

Figure 1 presents a schematic diagram of a device, figure 2 is a view a in figure 1, figure 3 is a view B in figure 1.

The etching device comprises a drum 1 made of an elastic material in the form of a spiral-corrugated cylinder mounted on the drive 2 and output 3 disks, the drive disk 2 is rigidly mounted on the shaft 4, the output disk 3 is equipped with a stop 5 and has the possibility of axial movement and rotation on the shaft 4. The stop 5 interacts with the latch 6, rigidly mounted on the frame 7.

A device for etching works as follows.

Depending on the type of seeds and the pesticide used, the frequency of rotation of the drum 1 and the required length of the retainer 6 are set, which ensures the optimal mixing mode. When the shaft 4 is rotated, the drive disk 2 provides rotation of the spiral-corrugated cylinder of the drum 1 and the output disk 3 until the stop 5 of the retainer 6, mounted on the frame 7, is reached, with the possibility of changing the length. The stop of the output disk 3 causes twisting and decreasing the length of the drum 1. When the length of the drum 1 decreases, the stop 5 moves along the latch 6 until it disengages, after which the additional disk 3 is given additional acceleration due to the potential energy of the twisted drum 1. This achieves a stepwise character of the speed of the processed grain at the exit of drum 1 and the intensification of the mixing process.

The intensification of the process of mixing seeds with a pesticide, improving the quality of dressing and increasing the productivity of the dresser is achieved due to the fact that the seeds inside the drum make an uneven movement, which contributes to its volumetric movement in the drum.

Thus, the proposed technical solution provides an intensification of the process of mixing seeds with a pesticide and improving the quality of dressing.

Information sources

1. Device for presowing seed treatment. Copyright certificate SU No. 528899. Publ. 09/25/1976 Bull. Number 35.

2. The method of etching and a device for implementing the method. Copyright certificate SU No. 950216. Publ. 08/15/1982 Byul. No. 30.

3. Klenin N.I. and other agricultural machinery. - M .: Kolos, 1970, - p. 175 (prototype).

Claims (1)

A device for pre-sowing seed treatment, including a frame, a drum, a mechanical transmission and a drive, characterized in that the drum is made of elastic material in the form of a spiral-corrugated cylinder mounted on the drive and output disks, the drive disk is rigidly mounted on the shaft, the output disk is made with the possibility of axial movement and rotation on the drive shaft and is equipped with a stop interacting with a variable length lock mounted on the frame.

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