CN201072913Y

CN201072913Y - Rotating bark hack

Info

Publication number: CN201072913Y
Application number: CN 200720025482
Authority: CN
Inventors: 刘均波; 王立梅
Original assignee: Weifang University
Current assignee: Weifang University
Priority date: 2007-07-26
Filing date: 2007-07-26
Publication date: 2008-06-18
Anticipated expiration: 2017-07-26

Abstract

The utility model discloses a rotary cutting blade, which is characterized in that, the whole body of the rotary cutting blade is disk shaped; a plurality of mounting holes is arranged on the bottom of the disk bulging upward; a plurality of inner grooves are distributed evenly at the periphery of the disk; a plurality of cutting edges are arranged in the inner grooves; the number of the inner grooves ranges from seven to nine. The utility model has the advantages that, as the bottom part of the rotary cutting blade is a fixed end, so entering into soil is unnecessary during cutting; the cutting edges are arranged in the inner grooves at the periphery of the disk, so during cutting, only the cutting edges at the periphery of the disk need to enter the soil, no only is the cutting resistance reduced, the cutting depth is also increased; the number of the inner grooves ranges from seven to nine, so not only is the cutting resistance reduced, the stability during cutting is also ensured; the cutting area of each cutting edge is relatively large, so even part of the cutting edges are damaged, the rest cutting edges can still perform cutting in a very long time, and the utility model is relatively durable.

Description

A kind of rotary cutting knife

Technical field

The utility model relates to a kind of crop harvester rotary cutting knife.

Background technology

The existing cutter that is used for crop straw harvesting usefulness, it generally all is plane reaping hook formula, cutting toothing not when dark buries, but the cutting resistance is very big, blade is disconnected easily in cutting process, and harvesting efficiency is low, and required drive is bigger, and not steady, the dynamic power machine that the reaping corn mechanomotive force is provided is had relatively high expectations; Though it is little to cut shallow time cutting resistance, toothing is too high, the customer requirements in the time of can not satisfying the harvesting corn straw; Discoid cutter, its disc circumference are blade, the cutting of generally can not burying, and the cutting edge that buries is fragile, and service life is short.In a word, plane reaping hook formula cutter in the past can not satisfy current corn picker requirement.

Summary of the invention

The technical problems to be solved in the utility model is at the existing cutter ubiquity drawback that when cutting is fragile, service life is short of burying, the rotary cutting knife of not fragile when providing a kind of cutter to bury cutting, long service life.

For solving the problems of the technologies described above, rotary cutting knife of the present utility model is in the form of annular discs, and its tray bottom raises up, and has installing hole, and disc circumference is evenly equipped with a plurality of inner groovies, is provided with blade in the inner groovy.

As to improvement of the present utility model, the quantity of described inner groovy is 7-9.

After adopting said structure, because its tray bottom of this rotary cutting knife is divided into stiff end, need not bury during cutting, blade is located in the groove of disk border, only need the blade of disk border to bury during cutting, both reduced the cutting resistance, increased depth of cut again, both reduced the dynamic power machine requirement of reaping corn mechanomotive force is provided, can satisfy the customer requirements of harvesting corn straw again.And blade accumulates in the groove of disk border, becomes overall structure with disk, is not easy to damage, and the stationarity in the time of can increasing cutting, can reduce again when cutting stress concentrate, make cutter can satisfy the requirement of corn stalk grain header, more durable again.And the quantity of inner groovy is 7-9, the resistance in the time of can reducing to cut, the stationarity in the time of guaranteeing to cut again.The cutting area of each blade is all bigger, even part is damaged, remaining blade also can cut in for a long time, and is more durable in use.

Description of drawings

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the A-A cutaway view of Fig. 1.

Embodiment

With reference to accompanying drawing, this rotary cutting knife 1 is whole in the form of annular discs, its tray bottom raises up, and has installing hole 2 and bolt hole, and installing hole 2 is square, it also can be other shape, disk border is evenly equipped with a plurality of inner groovies 3, and the quantity of inner groovy 3 is 7-9, is provided with blade in the inner groovy 3, the disk border segment thickness is 4-6mm, and blade place thickness is reduced to 1-1.5mm gradually by groove part thickness.Its tray bottom of this rotary cutting knife is divided into stiff end, need not bury during cutting, blade is located in the groove of disk border, only need the blade of disk border to bury during cutting, both reduced the cutting resistance, increased depth of cut again, both reduced, can satisfy the customer requirements of harvesting corn straw again the dynamic power machine requirement of reaping corn mechanomotive force is provided.And blade accumulates in the groove of disk border, becomes overall structure with disk, is not easy to damage, and the stationarity in the time of can increasing cutting, can reduce again when cutting stress concentrate, make cutter can satisfy the requirement of corn stalk grain header, more durable again.And the quantity of inner groovy is 7-9, the resistance in the time of can reducing to cut, the stationarity in the time of guaranteeing to cut again.The cutting area of each blade is all bigger, even part is damaged, remaining blade also can cut in for a long time, and is more durable in use.

Claims

1. a rotary cutting knife is characterized in that this rotary cutting knife (1) is in the form of annular discs, and its tray bottom raises up, and has installing hole (2), and disk border is evenly equipped with a plurality of inner groovies (3), and inner groovy is provided with blade in (3).

2. rotary cutting knife according to claim 1, the quantity that it is characterized in that described inner groovy (3) are 7-9.