Slip type precise filming and seeding roller and seeding machine

Abstract

The invention relates to a slip type precise filming and seeding roller, which comprises a roller bracket, a film pressing wheel, a terminal pad, a seed fetching mechanism, a seed discharging mechanism and a transmission mechanism, wherein the terminal pad is installed on the film pressing wheel through a bolt; the seed fetching mechanism is connected with a vertical connection plate welded on the roller bracket through a bolt; the seed discharging mechanism is installed at the inner side of the film pressing wheel; one end of a roller shaft is fixedly installed on the terminal pad through a key; the other end of the roller shaft realizes deceleration transmission with a seed fetcher shaft 1 of the seed fetching mechanism through the transmission mechanism; and the transmission mechanism is installed on the roller bracket. The slip type precise filming and seeding roller and a seeding machine disclosed by the invention have the advantages that: because the roller bracket is connected with a machine frame of a filming and seeding machine, seeding can be realized while filming; due to different rotation speeds of a seed fetching disc and the roller shaft, with the help of a seed receiving hopper with an inclined surface, the seed adsorbing reliability of the seed fetching disc is increased when the rotation sped of a seeding roller shaft is higher, so that the purposes of makingseeding rate precise and being difficult to leak the seeds can be achieved; and the slip type precise filming and seeding roller and the seeding machine disclosed by the invention have the characteristics of being compact in structure and capable of increasing seeding speed.

Description

technical field [0001] The invention relates to a sowing roller for agricultural production, in particular to a slip-type precision film-laying sowing roller, which is mainly suitable for an air-suction precision film-laying seeder. Background technique [0002] Mulching film mulching technology has been widely used all over the country, especially in the cold northern regions. As the main tool for realizing this technology, the film-laying seeder has been widely promoted and used in production. However, the inaccurate control of the sowing rate of the sowing roller and the low seeding rate have become constraints for the popularization and application of mulching cultivation technology. [0003] The commonly used structure of the film-laying sowing drum is that the seeding disc and the drum adopt the same rotation speed. The disadvantage is that when the sowing speed is increased, the seeding disc rotates too fast, resulting in unreliable seed suction, which will cause miss...

AI Technical Summary

Problems solved by technology

However, the inaccurate control of the sowing rate of the sowing drum and the low seeding rate have become constraints for the popularization and application of mulching cultivation techniques.

[0003] The commonly used structure of the film-laying sowing drum is that the seeding disc and the drum adopt the same rotation speed. The disadvantage is that when the sowing speed is accelerated, the seeding disc rotates too fast, resulting in unreliable seed suction, which will cause missed seeding.

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