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Anti-clogging mechanism for model holes of vertical seed metering plate

A kind of seed tray and vertical technology, which is applied in the direction of seeder parts, etc., can solve the problem of hole blockage and other problems, and achieve the effects of clearing blockage prevention, improving reliability and stability, and improving manufacturing process

Inactive Publication Date: 2011-05-18
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After working for a period of time, it is necessary to disassemble the seed meter, and manually remove the blocked seeds to solve the missed seeding caused by the blockage of the hole. This problem is a serious defect of the vertical disc return device.

Method used

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  • Anti-clogging mechanism for model holes of vertical seed metering plate
  • Anti-clogging mechanism for model holes of vertical seed metering plate

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Experimental program
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Embodiment Construction

[0010] specific implementation plan

[0011] Such as figure 1 As shown, a shoulder 3 is processed on the inside end surface of the hole of the vertical seed metering disk 1, and the difference between the radius of the seed disk and the shoulder is equal to or greater than the maximum depth of the hole. The height of the shoulder is limited to the actual effective working profile without destroying the hole, and the higher shoulder is beneficial for the seed tongue to remove the seeds that block the seeds. For general soybean varieties, the shoulder height is about 3mm. The shape of the seed clearing tongue 2 and its cooperation with the seed disc are shown in the figure. In actual application, the seed clearing tongue is fixed on the housing of the seed metering device, and the seed metering coil rotates around the shaft hole. The angle between the hypotenuse and the 4 half-lines that the seed-clearing tongue is used to remove seeds should be smaller than the friction angl...

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Abstract

The invention relates to an anti-clogging mechanism for model holes of a vertical seed metering plate. A shoulder is machined on the inner lateral surface of each model hole of the vertical seed metering plate; a seed clearing part of a seed clearing tongue fixed on a shell is matched and assembled with a shoulder excircle and the end face of the seed metering plate to form a seed clearing mechanism, so that blocking can be cleared effectively, and seeding missing can be prevented. The structure has the function of a seed clearing mode in which a ring slot is formed along the central connecting line of each model hole in the circumferential direction of the seed metering plate and in which a tongue part is arranged in the ring slot, and has the excellent manufacturing manufacturability; and the reliability and stability of a vertical circular disc seed-metering device are improved greatly while the operating effect of the model holes on the seed metering plate is not influenced.

Description

technical field [0001] Agricultural planting machinery and equipment, suitable for vertical disc seed metering devices. Background technique [0002] The vertical disc seed meter occupies a relatively large price in the precision seed meter market due to its low price and good workmanship. However, due to structural limitations, it is not convenient to install a seed cleaning and anti-blocking mechanism. Since the appearance of this type of seed meter, the throwing of seeds from the hole has been achieved by its own gravity and the centrifugal force generated by the rotation of the seed disc. Once the seeds in the type hole cannot be discharged for some reason, even if the type hole is blocked and the leakage is formed, the resulting leakage phenomenon will continue and become more serious as this situation occurs in other type holes. After working for a period of time, it is necessary to disassemble the seed meter, and manually remove the blocked seeds to solve the missed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C7/20
Inventor 刘宏新史玉红
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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