Replaceable shovel tip double row anti-blocking opener

Abstract

The invention belongs to the technical field of agricultural machines, and particularly relates to a twin-row anti-blocking opener with a replaceable spade point. The twin-row anti-blocking opener with the replaceable spade point comprises a seed guiding set mounted on a spade handle, a spade point mounting plate and the spade point; the spade point mounting plate is fixed in front of the seed guiding set, and the spade point is connected with the spade point mounting plate through a bolt and a nut; two symmetrical seed guiding grooves are formed in the seed guiding set; semicircular pipes used as anti-blocking components are mounted at the upper end of the spade point mounting plate and the front side of the seed guiding set; each semicircular pipe is divided into a left side face and a right side face, wherein the two side faces are made of materials with different friction coefficients. In the ditching operation, due to the fact that the two side faces of each semicircular pipe are different in friction coefficient, friction force of different magnitudes is generated on straw at the surface layer, straw blocked at the front face of the opener laterally slides, and the anti-blocking effect is achieved; the spade point can be quickly replaced after being abraded, and the ditching effect and the service life of the no-tillage opener is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a replaceable shovel point dual-row anti-blocking ditch opener. Background technique [0002] In the field of agricultural machinery technology, the no-tillage opener is a key component of the no-tillage seeder. It is used for ditching and sowing operations on the stubble land, covered with a large amount of straw, and the plow layer soil is compact. Due to the small area of ​​land in our country and the small supporting power of tractors, large no-tillage seeders are not suitable for no-tillage operations in the field, and mobile openers are more suitable for the needs of small and medium-sized no-tillage seeders in my country. Since the mobile ditch opener does not have stubble breaking and anti-blocking capabilities, it is easy to make the surface straw entangled on the shovel handle or congested in front of the ditch opener to form a blockage; and t...

AI Technical Summary

Problems solved by technology

Since the mobile ditch opener does not have stubble breaking and anti-blocking capabilities, it is easy to make the surface straw entangled on the shovel handle or congested in front of the ditch opener to form a blockage; and the tighter soil increases the resistance of ditching operations, and increases The wear of no-tillage openers affects the effect of trenching operations and the service life of the openers

[0003] At present, in order to solve the problems of straw blockage, large operation resistance and serious wear of key parts during the opener operation, anti-blocking devices (power stubble cutting device, surface straw cleaning device, etc.) are installed in front of the opener to ensure the safety of the opener. smooth operation

At the same time, in order to create a good seed bed soil environment, optimize the structure of the mobile opener to loosen the soil and create a good seed bed soil effect, such as the "no-tillage opener" patent No. ZL200610169636.4 The designed opener can loosen the soil on both sides of the trench, open a U-shaped trench, reduce working resistance, and create a good seedbed environment for seed growth, but the wear resistance of the opener is poor

Patent No. ZL201210109298.0 "Bionic Fertilization Ditch Opener" is designed with a prismatic bionic geometric structure and hydrophobic materials to achieve the effect of reducing soil operation resistance and power consumption, but the ditching The production of the device is more complicated, which increases the processing cost

The bionic opener designed by the patent number ZL201210544482.8 "Bionic core share seeding opener" has a scale-shaped geometric structure and a convex-hull geometric structure distributed on the upper surface of the front part of the opener to reduce soil pressure. Technical effect of adhesion and reduced working resistance, but increases the complexity of manufacturing and makes the processing cost higher

The patent number is ZL201410266225.1 "a ditch opener for wheat no-tillage seeder". The ditch opener has a better ditch and stubble breaking ability due to the circular arc edge type ditch opener, which can reduce straw blockage and It has good passability, but the wear resistance of the opener is poor, and it is not easy to process

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