CN2857449Y

CN2857449Y - Machine for crushing stubble and leaving same in field

Info

Publication number: CN2857449Y
Application number: CN 200520037770
Authority: CN
Inventors: 印少军
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-30
Filing date: 2005-12-30
Publication date: 2007-01-17
Anticipated expiration: 2015-12-30

Abstract

The utility model is a machine for crushing stubble and leaving same in field, relates to farm crop straw field-returning crusher. A crushing unit is consisted of drive wheel, gear box, cutting crusher and a clutch, characterized in that input end of the gear box is provided with a drive wheel and a clutch, output end of the gear box is provided with a vertical cutting crusher, the gear box is provided with a elongated output shaft, and a cutting knife is fixed on the end of the output shaft extended into the cutting crusher. According to said stubble crushing device, horizontal knife shaft is changed into vertical structure and horizontal turning cutter. Not only the defects of weed entwisting, superficial soil piercing, low stubble crushing ratio, high power and oil consumption have been overcome, but also provides beneficial technique support for realizing two more unit combinations. Structure of the utility model is reasonable and compact, transmission of motion is smooth, working is reliable and efficient.

Description

Straw-returning stubble-cleaning reducing mechanism

Technical field

The utility model relates to the reducing mechanism of crops straw returning field, especially about a kind of stubble-cleaning reducing mechanism of returning crop stocks to the field.

Background technology

Existing straw-returning stubble-clearing device, horizontal tool roller axis and the crotch blade structure of many employings, this tool roller axis is that up time is to rotation and with suitable ridge mode stubble-cleaning, put into practice from production operation, because of the blade soil-entering resistance is bigger, and depth of implements is shallow (is generally 8～10cm), so, have that weeds, blade cut that portion is broken, weeds are twined cutter shaft and phenomenon such as the sticking cutter of earth, not only stubble-cleaning is of poor quality, efficient is low, and oil consumption height, effect are low.

The utility model content

The purpose of this utility model is for overcoming defective and the not enough straw-returning stubble-cleaning reducing mechanism that discloses a kind of upright structures that existing horizontal stubble-clearing device exists.This device is achieved in that a kind of straw-returning stubble-cleaning reducing mechanism, constitute one group by driving wheel, gearbox, cutting and grinding device and clutch and pulverize the unit, the input that it is characterized in that gearbox be provided with connect each other with driving wheel and---the clutch of disengaging, the output termination of gearbox is put upright cutting and grinding device, the output shaft of gearbox extends inserts the cutting and grinding device, and the output the tip of the axis is provided with moving knife; Gearbox is made up of casing and a pair of bevel gear and input thereof, output shaft, and the termination that is positioned at power shaft outside the casing is installed driving wheel and clutch respectively, and the termination of power shaft and output shaft is respectively equipped with the bevel gear that turns to 90 ° of engagements in the casing; Driving wheel is located at power shaft and is positioned at shaft part outside the gearbox body, and driving wheel is connected for rolling with power shaft; Clutch is located at power shaft and is positioned at gearbox body---and outside the driving wheel and near the axle head of driving wheel one side, this axle head also is provided with fixing retaining head, clutch and power shaft are connected for the key that slides; Clutch comprises the tooth engaging piece and the portion that is frictionally engaged, and the tooth engaging piece is decided tooth and is sheathed on the wheel hub end face that driving wheel protrudes by deciding the tooth cover and moving the tooth cover and form, and moving tooth is sheathed on the big end surface of ladder axle sleeve, and moving tooth cover is connected for the key that slides with power shaft; The portion that is frictionally engaged is made up of price fixing and Moving plate, and price fixing is located at driving wheel and is decided the outer of tooth cover end face and be the web shape, and the Moving plate of pot shape is located at the periphery of moving tooth cover, and Moving plate is connected with the key of moving tooth cover for slip; Be provided with compression spring between Moving plate and the moving tooth cover stub end inboard; Moving plate and moving tooth cover are respectively equipped with shifting fork bar; Between moving tooth cover and the retaining head compression spring is set; The cutting and grinding device is made up of stationary knife that places encloser inner wall and moving knife, and case is fixed in gearbox body; Moving knife comprises 2 groups of above flail knives and broken stubble cutter, and broken stubble cutter is fixedly arranged in the termination of output shaft, and flail knife places on the broken stubble cutter; Flail knife is made up of blade and cutterhead, and an end of blade is articulated in cutterhead; Broken stubble cutter is the arc shaped blade cutter, and the arc shaped blade cutter is made up of broach shell and cambered blade, and cambered blade radially radiation is fixed in broach shell; Broken stubble cutter is a disc saw blade cutter; Connect two groups by shaft coupling and pulverize the unit, shaft coupling places between the butt end of two groups of pulverizing unit power shafts; By be connected in series pulverizing unit more than two groups of belt transmission or chain drive, belt pulley or sprocket wheel place the two ends of pulverizing the unit power shaft respectively.

Press such scheme and implement the stubble-cleaning reducing mechanism, owing to change horizontal cutter shaft into upright cutter shaft structure and the cutter that horizontally rotate, not only overcome weeds twine cutter, cutter bury shallow, the stubble-cleaning rate low, power consumption and the high defective of oil consumption, and for realizing that the above many covers unit combination of two covers provides useful technical support.The utility model is rational in infrastructure, compact, and stable drive, reliable operation, effect height are applicable to large, medium and small type tractor and diesel engine.

Description of drawings

Fig. 1 is a kind of two groups of drive mechanism schematic diagrames of pulverizing the unit for combination embodiment of the utility model;

Fig. 2 is the structural representation of clutch;

Fig. 3 is that a kind of four groups of pulverizing unit are provided with schematic top plan view for the layout that makes up embodiment;

Fig. 4 is the floor map of flail knife structure;

Fig. 5 is the floor map of the broken stubble of arc knife structure.

Embodiment

Be further described in detail in conjunction with the accompanying drawings.Pulverizing described in the utility model unit is made up of belt pulley 4, gearbox, cutting and grinding device and clutch 8, wherein, gearbox by casing 1,90 ° of of of of of of and turn of a pair ofly be to bevel gear, 3 and 9,2,90 ° of of of of of of transmission of power shaft to of the output shaft, 10 of engagement to constitute that bevel gear turns to make the axle horizontal type of former level be improved to the horizontal resection mode of vertical shaft; The cutting and grinding device is made up of 3 groups of stationary knifes 12 that place case 14 inwalls and 2 groups of

flail knives

11 and 3 groups of broken stubble cuttves 13, case 14 is fixed in gearbox body or support (diagram slightly), output shaft 10 extends inserts the cutting and grinding device, 3 groups of waney broken stubble cuttves, 13 are fixedly arranged in the end of output shaft, 10 respectively by level, and 2 groups of flail knives 11 place on the broken stubble cutter; Flail knife 11 is made up of blade 110 and cutterhead 112, and an end of blade 110 hinged (hinge 111) is in cutterhead 112; Broken stubble cutter 13 is the arc shaped blade cutter, and the arc shaped blade cutter is made up of broach shell 131 and cambered blade 130, and cambered blade 130 radially radiation is fixed in broach shell 131; So be provided with, help " pulling the grass up by its roots " and tangible clean careless and broken stubble rate, the wasted work phenomenon that eliminating earth, grass roots do not twine cutter and do not twine axle of improving.Under some environment, can also use a kind of discoidal saw blade cutter (diagram slightly) .Clutch 8 places the outside of belt pulley 4 to be positioned at the axle head of power shaft 2, clutch 8 comprises the tooth engaging piece and the portion that is frictionally engaged, the tooth engaging piece is formed by deciding tooth cover 80 and moving tooth cover 801, decide tooth cover 80 and be located at wheel hub 40 end faces that belt pulley 4 protrudes, moving tooth cover 801 is located at the big end surface of ladder axle sleeve, moving tooth cover 801 be a sliding fit with the spline 21 of power shaft 2, and promptly moving tooth cover 801 can slide along axle 2 under the stirring of shifting fork bar 16---realize deciding tooth and overlap 80 and overlap 801 engage and disengaging with moving tooth; When the two engaged, external power was passed to belt pulley 4 by V belt 41---pass to power shaft 2 by spline 21 through clutch 8---Rotatable umbrella gear 3---bevel gear 9---output shaft 10---flail knife and broken stubble cutter; The portion that is frictionally engaged is made up of price fixing 81 and Moving plate 810, price fixing 81 is located at belt pulley 4 and is decided the outer that tooth overlaps 80 end faces and be the web shape, the Moving plate 810 of pot shape is located at the periphery of moving tooth cover 801, the key 8011 of Moving plate 810 and moving tooth cover 801 is for being slidingly matched, and Moving plate 810 and moving tooth overlap between the 801 stub end inboards and be provided with compression spring 8010; ——8，1516——810801181081——8108011801——80121——2——1680180——15——810801081——8015 （ 527 ） 80212——3——91011、13。 Employing is frictionally engaged earlier---and the purpose of back tooth engagement connected structure mainly is the mechanical impact force when reducing the direct joint of tooth engagement with mild being frictionally engaged, and prevents to damage parts.

In order to improve the production efficiency of broken stubble operation, general, implement to finish by a plurality of pulverizing unit that shaft coupling, belt pulley or sprocket wheel can connect more than two groups, promptly realizing as shown in Figure 1 through two groups of pulverizing of shaft coupling 6 connections unit, shaft joint 6 places between the butt end of two groups of unit power shafts, and shaft coupling 6 can be selected cross universal joint etc. for use.

Shown in Figure 3 is a kind of four groups of compound modes of pulverizing the unit that are provided with by belt pulley 4 and V belt 41 (also can select the transmission of sprocket wheel and chain for use) series connection, the belt pulley of transmission places the two ends of pulverizing the unit power shaft respectively, be the input belt pulley of output belt pulley unit power shaft after belt connects of last unit power shaft, by that analogy; 1 pulverizes the unit for cutter, four groups and bearing block 19 places support 17 altogether for gearbox body, broken circle 11, and power transmission shaft 18 imports external power into by shaft coupling 6, by unit combination what, can select the different large, medium and small type tractor of horsepower for use.

Claims

1, a kind of straw-returning stubble-cleaning reducing mechanism, constitute one group by driving wheel, gearbox, cutting and grinding device and clutch and pulverize the unit, the input that it is characterized in that gearbox is provided with driving wheel and engages each other---the clutch of disengaging, the output termination of gearbox is put upright cutting and grinding device, the output shaft of gearbox extends inserts the cutting and grinding device, and the output the tip of the axis is provided with moving knife.

2, by the described straw-returning stubble-cleaning of claim 1 reducing mechanism, it is characterized in that gearbox is made up of casing and a pair of bevel gear and input thereof, output shaft, the termination that is positioned at power shaft outside the casing is installed driving wheel and clutch respectively, and the termination of power shaft and output shaft is respectively equipped with the bevel gear that turns to 90 ° of engagements in the casing.

3, by the described straw-returning stubble-cleaning of claim 1 reducing mechanism, it is characterized in that driving wheel is located at power shaft and is positioned at shaft part outside the gearbox body, driving wheel is connected for rolling with power shaft.

4, by the described straw-returning stubble-cleaning of claim 1 reducing mechanism, it is characterized in that clutch is located at power shaft and is positioned at gearbox body---outside the driving wheel and near the axle head of driving wheel one side, this axle head also is provided with fixing retaining head, and clutch and power shaft are connected for the key that slides.

5, by the described straw-returning stubble-cleaning of claim 4 reducing mechanism, it is characterized in that clutch comprises the tooth engaging piece and the portion that is frictionally engaged, the tooth engaging piece is by deciding the tooth cover and moving the tooth cover and form, decide tooth and be sheathed on the wheel hub end face that driving wheel protrudes, moving tooth is sheathed on the big end surface of a ladder axle sleeve, and moving tooth cover is connected for the key that slides with power shaft; The portion that is frictionally engaged is made up of price fixing and Moving plate, and price fixing is located at driving wheel and is decided the outer of tooth cover end face and be the web shape, and the Moving plate of pot shape is located at the periphery of moving tooth cover, and Moving plate is connected with the key of moving tooth cover for slip; Be provided with compression spring between Moving plate and the moving tooth cover stub end inboard; Moving plate and moving tooth cover are respectively equipped with shifting fork bar.

6,, it is characterized in that between moving tooth cover and the retaining head compression spring being set by claim 4 or 5 described straw-returning stubble-cleaning reducing mechanisms.

7, by the described straw-returning stubble-cleaning of claim 1 reducing mechanism, it is characterized in that the cutting and grinding device is made up of stationary knife that places encloser inner wall and moving knife, case is fixed in gearbox body; Moving knife comprises 2 groups of above flail knives and broken stubble cutter, and broken stubble cutter is fixedly arranged in the termination of output shaft, and flail knife places on the broken stubble cutter.

8, by the described straw-returning stubble-cleaning of claim 7 reducing mechanism, it is characterized in that flail knife is made up of blade and cutterhead, an end of blade is articulated in cutterhead.

9, by the described straw-returning stubble-cleaning of claim 7 reducing mechanism, it is characterized in that broken stubble cutter is the arc shaped blade cutter, the arc shaped blade cutter is made up of broach shell and cambered blade, and cambered blade radially radiation is fixed in broach shell.

10,, it is characterized in that broken stubble cutter is a disc saw blade cutter by the described straw-returning stubble-cleaning of claim 7 reducing mechanism.

11, by the described straw-returning stubble-cleaning of claim 1 reducing mechanism, it is characterized in that connecting two groups by shaft coupling pulverizes the unit, shaft coupling places between the butt end of two groups of pulverizing unit power shafts.

12,, it is characterized in that belt pulley or sprocket wheel place the two ends of pulverizing the unit power shaft respectively by be connected in series pulverizing unit more than two groups of belt transmission or chain drive by the described straw-returning stubble-cleaning of claim 11 reducing mechanism.