CN2348548Y

CN2348548Y - Universal cutter for rotary tillage stubble cleaning

Info

Publication number: CN2348548Y
Application number: CN 98247539
Authority: CN
Inventors: 韩春雷; 丛维军; 颜廷影; 岳力
Original assignee: SIPING INST OF AGRICULTURAL MECHANIZATION
Current assignee: SIPING INST OF AGRICULTURAL MECHANIZATION
Priority date: 1998-11-27
Filing date: 1998-11-27
Publication date: 1999-11-17
Anticipated expiration: 2008-11-27

Abstract

The utility model discloses a universal cutter blade with the function of rotary tillage and stubble cleaning, and the utility model is used on primary tillage equipment on farmland. The utility model comprises a cutter handle, a cutter body, a cutter head and a cutting edge; the parameter of a basic structure of the utility model adopts the characteristic of a stubble-cleaning cutter blade, the cutting edge adopts a circular arc edge with a radius R ranging from 150 mm to 220 mm, and thus, the utility model not only can satisfy the agricultural requirement of the operation of cleaning stubble of tall crops seeded on ridges, but also can satisfy the requirement of rotary tillage on a flat planting paddy field and a cornfield with fine and dense stubble; besides, the utility model has the advantages of strong ability in cleaning stubble and shredding soils, little resistance in penetrating into the soils, flat ditch bottom, etc.

Description

Rotary tillage stubble-cleaning interchangeable blade

The utility model relates to a kind of agricultural machinery, particularly relates to a kind of rotary tillage stubble-cleaning interchangeable blade that is used on the primary tillage equipment of farmland.

Rotovator is to carry out the loosen the soil farmland of operation of rotary tillage at flat planting crops such as paddy and wheats to plough scarification equipment, its objective is and the paddy and wheat stubble is transferred to and puddled with the soil of chopping, with the seasonal vegetable mellow soil, to reach the agriculture requirement of crop-planting.And stubble cleaner mainly is the root stubble that is used for pulverizing a high bed planting crop (as corn, Chinese sorghum etc.), and with root stubble disintegrating slag and earth mixture, thereby reaches the agriculture requirement of root stubble chopping and returning.Because rotovator is different with the farming object of stubble cleaner, its operation purpose and the agriculture requirement that will reach are also different, and therefore the operation blade of existing these two kinds of machineries can not exchange general.This makes troubles not only for manufacturing and user, and fundamentally defines the possibility that realizes dual-use, so that define the availability of this kind machinery greatly, can not give full play to its potential practical value.

The purpose of this utility model is will provide a kind of not only can be suitable for the rotary tillage operation, but also the rotary tillage stubble-cleaning interchangeable blade that can carry out the stubble-cleaning operation.

The purpose of this utility model is achieved in that this interchangeable blade comprises handle of a knife, blade, cutter head and cutting edge, on handle of a knife, be shaped on installing hole, between blade and cutter head, there is a bending, the cutting edge that is located on the blade outboard end is that radius is the circular arc sword of R=150mm～220mm, and the expanded position shape that is located at the cutting edge on the cutter head is the same track circular arc that is connected mutually with the blade cutting edge.

The utility model is owing to adopted the elementary structure parameter of stubble-cleaning blade, therefore still can satisfy the agriculture requirement of a high bed planting crop stubble-cleaning operation, its work cutting edge adopts the circular curve structure, its cutting force is strengthened and be difficult for pulling weeds, therefore also can adapt to and in the comparatively fine and closely woven flat planting rice cornfield of stubble system, carry out the rotary tillage operation of loosening the soil.Have in addition that stubble-cleaning hack ability is strong, soil-entering resistance is little, bottom of trench is smooth, be suitable for the general advantages such as wide of enclosing.

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof:

Fig. 1, be a kind of overall structure front view of rotary tillage stubble-cleaning interchangeable blade.

Fig. 2, be a kind of overall structure vertical view of rotary tillage stubble-cleaning interchangeable blade.

Describe concrete structure of the present utility model and operating position in detail below in conjunction with accompanying drawing: this blade comprises handle of a knife 2, blade 3, cutter head 8 and cutting edge 6, is shaped on installing hole 1 on handle of a knife 2, has a bending between blade 3 and cutter head 8.The cutting edge 6 that is located on blade 3 sides is that radius is the circular arc sword of R=150mm～220mm, and the expanded position shape that is located at the cutting edge on the cutter head 8 is the same track circular arc that is connected mutually with blade cutting edge 6.Have an angle between described handle of a knife 2 and blade 3, this angle is to limit by angle α=55 between handle of a knife boundary line 4 and the handle of a knife center line 7 °～80 °.Described handle of a knife boundary line 4 is meant that the intersection point of the border line of handle of a knife 2 and blade cutting edge circular arc line is with the line between the center of circle O of this circular arc own.Bending part between described blade 3 and cutter head 8 has bending position axis 5, and the angle between this axis 5 and the described handle of a knife boundary line 4 is β=20 °～35 °.

Claims

1, a kind of rotary tillage stubble-cleaning interchangeable blade, comprise handle of a knife (2), blade (3), cutter head (8) and cutting edge (6), on handle of a knife (2), be shaped on installing hole (1), between blade (3) and cutter head (8), there is a bending, it is characterized in that: the cutting edge (6) that is located on blade (3) side is that radius is the circular arc sword of R=150mm～220mm, and the expanded position shape that is located at the cutting edge on the cutter head (8) is the same track circular arc that is connected mutually with blade cutting edge (6).

2, a kind of rotary tillage stubble-cleaning interchangeable blade according to claim 1, it is characterized in that: between described handle of a knife (2) and blade (3), have an angle, this angle is to limit by angle α=55 between handle of a knife boundary line (4) and the handle of a knife center line (7) °～80 °, and described handle of a knife boundary line (4) is meant that the intersection point of the border line of handle of a knife (2) and blade cutting edge circular arc line is with the line between the center of circle O of this circular arc own.

3, a kind of rotary tillage stubble-cleaning interchangeable blade according to claim 1 and 2, it is characterized in that: the bending part between described blade (3) and cutter head (8) has bending position axis (5), and the angle between this axis and the described handle of a knife boundary line (4) is β=20 °～35 °.