Medium-sized disc harrow convenient to adjust

Abstract

The invention discloses a medium-sized disc harrow convenient to adjust. The disc harrow comprises a harrow frame, a suspending lug support, adjustment screw rod assemblies, a front angle adjustment rod, a rear angle adjustment rod, independent harrow group assemblies, adjustment blocks and harrow pieces; a suspension mechanism is welded to the harrow frame, the independent harrow group assembliesin a row shape are arranged on front and rear beams of the harrow frame, the adjustment screw rod assemblies are movably connected to a side beam of the harrow frame and hinged to one end of the front angle adjustment rod and one end of the rear angle adjustment rod, the adjustment blocks are hinged to the outer walls of the front and rear angle adjustment rods, and each independent harrow groupassembly comprises a vertical column, a clamping member and a hinge base, wherein the top of the vertical column is fixed in the harrow frame through the clamping member; the adjustment blocks are welded to side beams of the vertical columns, the hinge bases are fixed to the bottoms of the vertical columns through screws, and the harrow pieces are arranged in the hinge bases. According to the discharrow, by adjusting screw rods in pulling rod assemblies, the front and rear angle adjustment rods are pulled to move, angles of the harrow pieces of the harrow group assemblies are easy and convenient to adjust, and manpower is saved.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a conveniently adjustable medium-sized disc harrow. Background technique [0002] As an agricultural land preparation machine, the medium-sized disc harrow is widely used in crushing soil after plowing, land preparation before sowing, mixing soil and fertilizer, and stubble removal in light and medium soil. Traditional medium-sized disc harrows are all in the form of suspension, connected to the tractor through a three-point suspension. The traditional structure of the medium-sized disc harrow mainly connects the front and rear rake groups to the rake frame through standard parts; the suspension mechanism is connected to the rake frame through standard parts and suspension pins. Traditional medium-sized disc harrows have the following disadvantages: [0003] 1. When adjusting the angle of the rake blades on the rake frame and the deflection angle of the rake grou...

AI Technical Summary

Problems solved by technology

[0003] 1. When adjusting the angle of the rake blades on the rake frame and the deflection angle of the rake group, it is necessary to loosen the bolts on both sides of the rake frame respectively, manually move the front rake group and the rear rake group, and adjust the position of the bolts on the angle adjustment plate. Trouble, high work intensity, low adjustment efficiency

[0004] 2. Under the premise of ensuring the tillage pair, the front and rear dimensions of the entire machine tool are relatively large, and it takes up a lot of space whether it is packing or transporting

[0005] 3. The blades of the traditional medium-sized disc harrow are made of 65mn carbon steel with limited hardness and toughness.

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