Rotary Tiller Knife Magazine Mechanism

Abstract

The invention discloses a rotary cultivator tool magazine mechanism comprising a disc tool rest having a central through hole; the disc tool rest is sleeved on a rotary cultivator cutter shaft through the through hole; a plurality of slots used for inserting cutters are arranged on the periphery of the disc tool rest; a radial direction of the disc tool rest and the slot form an acute angle, i.e., a mounting angle of the cutter relative to the radial direction of the disc tool rest is an acute angle. The rotary cultivator tool magazine mechanism is maintenance-free, and super long in life.

Description

technical field [0001] The invention relates to the technical field of agricultural rotary tillers, in particular to a rotary tiller knife magazine mechanism. Background technique [0002] At present, in the prior art, most of the cutter magazines of the rotary tiller are short flat tubes with a rectangular cross section, one end of the short flat tube is a rectangular nozzle, the other end of the short flat tube is arc-shaped, and the side wall of the short flat tube is provided with The through hole that can pass through the bolt, the arc-shaped end of the rotary tiller knife magazine can be welded on the rotary tiller knife shaft, the rectangular nozzle at the other end of the rotary tiller knife magazine can be used to insert the rotary tiller blade, and then use the bolt to turn the rotary tiller The tiller blades are fixed on the rotary tiller magazine. This kind of rotary tiller magazine requires multiple short flat tubes to be welded and assembled on the rotary tille...

AI Technical Summary

Problems solved by technology

[0002] At present, in the prior art, most of the cutter magazines of the rotary tiller are short flat tubes with a rectangular cross section, one end of the short flat tube is a rectangular nozzle, the other end of the short flat tube is arc-shaped, and the side wall of the short flat tube is provided with The through hole that can pass through the bolt, the arc-shaped end of the rotary tiller knife magazine can be welded on the rotary tiller knife shaft, the rectangular nozzle at the other end of the rotary tiller knife magazine can be used to insert the rotary tiller blade, and then use the bolt to turn the rotary tiller The tiller blades are fixed on the rotary tiller magazine. This kind of rotary tiller magazine requires multiple short flat tubes to be welded and assembled on the rotary tiller shaft. The structure is complex and the production cost is high. Since the short flat tubes are rectangular It can choose to install a single fixed blade, and the handle of the blade must be straight; when the rotary tiller is operating, due to the large torque, the welding point of the rotary tiller knife magazine composed of welded short flat tubes is easy to get off. And it is easy to damage the blade due to stress concentration, resulting in damage to the tool magazine of the rotary tiller, and it is more likely to cause the blade blade to break, which affects the normal rotary tillage operation

There are also flanges used to directly fix the blade with bolts. The stress is all concentrated on the fixed bolts, forming a major stress concentration point for the screw holes of the blades. It is easy to damage the screw holes of the blades during rotary tillage operations, resulting in the scrapping of the blades and affecting Normal rotary tillage operations can also easily cause the blades to fall off the farmland during operation, and other blades will usually be rotated to the fallen blades, causing all the blades on the knife shaft to be damaged, and the safety defect is more obvious

Furthermore, the rotary tiller of the prior art is prone to corrosion when it is operated on weak saline-alkali land, which greatly affects the service life of the rotary tiller.

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