CN2750643Y

CN2750643Y - Blade of straw chopping and tillage stubble machine

Info

Publication number: CN2750643Y
Application number: CN 200420075242
Authority: CN
Inventors: 韩学江; 韩俊德; 韩俊同; 韩秀颖
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-11-29
Filing date: 2004-11-29
Publication date: 2006-01-11
Anticipated expiration: 2014-11-29

Abstract

The utility model relates to a blade for a straw pulverizing field-returning machine. A rotary shaft is fixed on both sides of a casing through bearings and is fixedly provided with a plurality of cutter seats which are uniformly distributed; the cutter seats are provided with movable blades; the inner side of the casing is provided with a transversal straight fixed cutter; five movable blades form one group, the movable blade at the center forms a straight shape, and other movable blades respectively form an L shape; the cutter edges are coated and welded through welding rods. The utility model has the advantages of large blade control area, blade use quantity decreasing, low cost and small resistance; the service life is two to three times of the service life of an ordinary blade; the blades keep in a vertical angle and in the sharper state all the time, which has a better effect on straw stubble removing and pulverization, and the efficiency can be increased by two times.

Description

A kind of straw crushing and field-returning machine blade

(1) technical field: the utility model relates to farm machinery, further is straw cutting apparatus, particularly the blade of straw cutting apparatus.

(2) background technology: various straw cutting apparatuss in the market are divided into two kinds of flail knife formula and hammer pawl formulas.

The general installation method of hammer pawl formula: on rotating shaft, be fixed with equally distributed a plurality of tool rest, the hammer pawl is housed on the tool rest, match with the ledger-plate of being adorned on the frame and realize cutting.Owing to the main hammer pawl that relies on is picked up stalk, utilize ledger-plate stalks cutting afterwards, its advantage is that crushing effect is better, shortcoming is that the hammer pawl can not directly shred stalk, and cooperates the consumption of realization cutting power bigger with stationary knife, and the wearing and tearing of hammer pawl are more serious.

The general installation method of flail knife formula: on rotating shaft, be fixed with equally distributed a plurality of tool rest, moving knife is housed on the tool rest, match with the ledger-plate of being adorned on the frame and realize cutting.It is stronger that advantage is that blade is grabbed the ability of cutting stalk, and crushing effect is better; Shortcoming is to wear and tear more seriously, and blade earlier contiguously one side is easy to wear in the arc-shaped, thereby blade is cut grab the ability of stalk to be affected, and finally influences crushing effect, the blade of having to more renew, and be about 100 mu of ground the service life of general blade.In addition, if knife section is " 1 " font (a straight shape), certain space is arranged each other, be the defective of Mi short covering crack to vertically arrange stalk and crop root residue grindability, the density of having only increased blade to arrange, this has just more increased the cost of tool changing sheet, and its root stubble to thin stalk is difficult for pulverizing clean.

Flail knife formula and another defective of hammer pawl formula are that resistance is big, and its reason is: after flail knife or the wearing and tearing of hammer pawl, along with the increase in gap, be stained with more earth in the casing easily, thereby increase living load, this increases many resistances for the operation of locomotive.Influence operating speed on the one hand, increase energy consumption on the one hand.

Because the blade that uses on the straw cutting apparatus is easy to wear, need often to change, need in the operation sometimes to change for several times, cost is higher on the one hand, results in hand cramps to the user on the one hand, thereby has influenced promoting the use of of straw cutting apparatus.

Result of use is the straw crushing and field-returning machine blade preferably.

The purpose of this utility model realizes by following scheme: a kind of straw crushing and field-returning machine blade, rotating shaft is by the both sides of bearing fixing at housing, be fixed with vertical with rotating shaft and equally distributed a plurality of tool rests on the rotating shaft, knife section is housed on tool rest, be characterized in: be provided with horizontal vertical bar stationary knife in the inboard of housing, knife section is one group with 5.

One group of knife section of the present utility model, except that the centre is " 1 " font, all the other all are " L " type, and the blade both sides can be coated with weldering with the different wearproof alloy weld rod of hardness.

The outstanding advantage of the utility model is: 1, the life-span is long.Life-span be general blade 2-3 doubly, general blade crushing effect when 100 mu of left and right sides relatively poor just needs is changed, but the utility model operation 300-400 mu then; 2, cost is low.Because knife section adopted " L " type structure, the blade control area improves greatly, can reduce the blade usage quantity, is example with 150 types, adopts the straight shape knife section often need be with about 100, and the utility model 50 of need only, thereby reduce cost; 3, result of use is good.When blade contacts with ground, remain right angle and comparatively sharp state, crushing effect is better, and simultaneously, the design of " L " type is even if guaranteed the cleaning partly of the thin straw stubble of straw stubble; 4, efficient improves.Ledger-plate is by general and the corresponding stationary knife that has some vertical gear pieces of knife section, become horizontal vertical bar stationary knife, and knife section is not easy to wear, thereby can reduce folder mud phenomenon, therefore not because of folder mud resistance, make the speed of service of locomotive higher relatively, thereby improved operating efficiency, the comparable general straw cutting apparatus of efficient improves 1 times.

(4) description of drawings: accompanying drawing 1 is the utility model mounting structure schematic diagram, Fig. 2 one group of blade structure schematic diagram of the present utility model; Fig. 3 is the utility model blade single chip architecture schematic diagram.

Among the figure, 1 is housing, and 2 is bearing, and 3 is rotating shaft, and 4 is power wheel, and 5 is tool rest, and 6 is knife section, and 6-1 is the circular hole of knife section, and 6-2 is the blade of knife section, and 6-3 is the layer that is coated with of knife section, and 7 is nylon cushion, and 8 is the vertical bar stationary knife.

(5) embodiment:, the utility model is done further narration below in conjunction with embodiment.

Embodiment 1: as shown in the figure, the both sides of the housing of straw cutting apparatus (1) are fixed with rotating shaft (3) by bearing (2), rotating shaft one outer end is provided with power wheel (4), power wheel is connected with power by conveyer belt, rotating shaft on be fixed with vertical with rotating shaft and equally distributed a plurality of tool rests (5), knife section (6) is housed on tool rest, knife section top is provided with circular hole (6-1), in order to be fixed on the tool rest, the bottom of blade is blade (6-2), per 5 of knife section is one group, one in central authorities are " 1 " font, all the other 4 blades (middle two and outside two) all are " L " type (or being called " J " type), and homogeneous phase outwards turns out central blade, totally be " pawl " type, " L " type blade lower end angle of bend is 40-50 °, in 5 blades, the both sides of intermediate blades are close on centre two blade tops adjacent with central " 1 " font blade, the top of two outside blades is connected by the blade top of nylon cushion (7) with the centre, thereby the control area and the result of use of straw-returning machine knife blade have been guaranteed, to the pulverizing of straw stubble, the particularly pulverizing of thin straw stubble, effect is better; And the negligible amounts of knife section, be example with 150 types (fuselage width is 1.5 meters), only need 50 knife sections, adopt straight shape knife section often need by contrast, can save the blade expense with about 100; The blade of knife section is inboard to be coated with weldering with the outside with the different wearproof alloy weld rod of hardness, what form knife section is coated with layer (6-3), because the hardness difference of two kinds of welding rods, worn and torn when farm work in advance in the position that hardness is low, the position that hardness is high then remains unchanged, thereby in the regular period, blade is used sharper and sharper.Because it is more wear-resisting, blade is in operation 300-400 mu the time, generally can not be worn down to circular arc type, thereby when kiss the earth, all the time meet at right angles with ground, guaranteed the effect of pulverizing, just need change for about 100 mu with general blade use and compare, can improve service life 1-2 doubly, the 2-3 that is general blade service life is doubly; Be provided with horizontal vertical bar stationary knife (8) in the inboard of housing, also be coated with weldering on the stationary knife with wearproof alloy weld rod, form stationary knife and be coated with layer (not marking among the figure), thereby guarantee the wearability of stationary knife, the slit between stationary knife and moving knife can be set to the 4-6 millimeter, owing to do not have and the corresponding some vertical teeth of knife section on the stationary knife, but a laterally straight sheet, and knife section is not easy to wear, so, thereby it is be difficult for producing folder mud phenomenon, thereby littler than general straw cutting apparatus resistance; And at moving knife when operation is rotated, stationary knife does not produce substantially to resistance, stalk is run into moving knife and is just shredded in advance, and does not have the obstruction driven knife chopping of sub-fraction stalk chopped by stationary knife.

It is one group that the utility model adopts 5 knife sections, and result of use is preferable, is one group if adopt the 3-4 sheet, then because blade space is bigger, can influence crushing effect.

Claims

1, a kind of straw crushing and field-returning machine blade, a kind of straw crushing and field-returning machine blade, rotating shaft is by the both sides of bearing fixing at housing, be fixed with vertical with rotating shaft and equally distributed a plurality of tool rests on the rotating shaft, knife section is housed on tool rest, it is characterized in that: be provided with horizontal vertical bar stationary knife in the inboard of housing, knife section is one group with 5.

2, a kind of straw crushing and field-returning machine blade according to claim 1, it is characterized in that: 5 on blade is one group, except that central blade was " 1 " font, all the other all were " L " type.

3, a kind of straw crushing and field-returning machine blade according to claim 2 is characterized in that: " L " type blade lower end angle of bend is 40-50 °.

4, a kind of straw crushing and field-returning machine blade according to claim 2, it is characterized in that: the both sides of intermediate blades are close on centre two blade tops adjacent with central " 1 " font blade, and the top of two outside blades connects by the blade top of nylon cushion with the centre.

5, according to claim 1 or 2 or 3 or 4 described a kind of straw crushing and field-returning machine blades, it is characterized in that: blade is provided with and is coated with layer.

6, a kind of straw crushing and field-returning machine blade according to claim 5 is characterized in that: the formation that is coated with layer is that the inboard is coated with weldering with the outside with the different wearproof alloy weld rod of hardness.

7, a kind of straw crushing and field-returning machine blade according to claim 1 is characterized in that: laterally be coated with weldering with wearproof alloy weld rod on the blade of vertical bar stationary knife.

8, according to claim 1 or 7 described a kind of straw crushing and field-returning machine blades, it is characterized in that: horizontal vertical bar stationary knife and knife section spacing 4-6 millimeter.