CN106489440B - Adjustable straw grinding device based on support sliding cutting principle - Google Patents
Adjustable straw grinding device based on support sliding cutting principle Download PDFInfo
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- CN106489440B CN106489440B CN201610912707.9A CN201610912707A CN106489440B CN 106489440 B CN106489440 B CN 106489440B CN 201610912707 A CN201610912707 A CN 201610912707A CN 106489440 B CN106489440 B CN 106489440B
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- 238000005520 cutting process Methods 0.000 title claims abstract description 37
- 239000010902 straw Substances 0.000 title claims abstract description 37
- 239000000725 suspension Substances 0.000 claims abstract description 18
- 238000003466 welding Methods 0.000 claims description 3
- 238000010008 shearing Methods 0.000 abstract description 2
- 238000010298 pulverizing process Methods 0.000 abstract 2
- 230000010355 oscillation Effects 0.000 abstract 1
- 239000002689 soil Substances 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D82/00—Crop conditioners, i.e. machines for crushing or bruising stalks
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The present invention relates to a kind of adjustable straw grinding devices based on support sliding cutting principle, including suspension plate, right side plate, crushing belt wheel, upper housing, left plate, stationary knife adjusting bracket, crushing rotor and crushing stationary knife.It crushes rotor and upper housing, left plate and right side plate forms pulverizing chamber, pulverized zone wheel drives crushing knife roller high speed rotation, under the cooperation for crushing stationary knife, by stalk shearing, tearing, makes its chopping and returning.The present invention is cut using support and the pulverization principle of sliding cutting, stationary knife will be crushed as cutting edge, completed using equiangular spiral and the blade curve for crushing stationary knife is designed, moving knife will be crushed as cutting and supported, support sliding cutting formula chopping and returning device is formd, operation power consumption can be effectively reduced;Stationary knife adjusting bracket realizes the oscillation adjustment for crushing moving knife, and the various combination for crushing stationary knife can be realized using arranged in rows, can satisfy the different crushing demands of stalk, and crushing stationary knife replacement is easy to adjust, and the working performance of grinding device can be effectively ensured.The present invention is suitable for the further improvement to widely used Horizontal straw-crushing return machine, and simple and compact for structure, feasibility is strong, has preferable Popularizing of A.
Description
Technical Field
The invention belongs to the technical field of agricultural machinery, and particularly relates to an adjustable straw smashing device based on a supporting sliding cutting principle.
Background
In modern agricultural production, the ground surface is required to be uniformly covered with the crushed crop straws frequently, so that the physical and chemical properties of the soil, the fertility of the soil and the like can be effectively improved. Crop straws are mainly crushed by a straw crushing device, and the crushing device which is widely applied at present is a horizontal straw crushing and returning machine. With the continuous improvement of crop yield and the popularization and application of the technology of returning the crop straws into the field of different types, the straw crushing returning machine needs to be frequently faced with the problems of large straw amount and multiple purposes (such as corn, wheat, rice and the like) of one machine, and needs to replace or adjust cutters according to different straw conditions in the field.
At present, the common straw crushing and returning machine adopts crushing moving cutters which mainly comprise hammer claw type, Y type (or L type) and straight cutter type, and the crushing fixed cutter is generally a plane trapezoidal blade with a serrated edge and is directly welded on the inner side of an upper shell. However, the machine does not pay attention to the function of the crushing fixed cutter, the arranged crushing fixed cutter is short, the cutting superposition distance between the crushing movable cutter and the crushing fixed cutter is small, the effect of supporting and cutting is difficult to achieve, in addition, the requirement on the rotating speed is relatively high, a great amount of straws are torn, the fibers are long, and the damaged crushing fixed cutter is difficult to replace.
The quality is not good is smashed to the straw, will directly influence the soil cultivation or the seeding operation quality that the later stage goes on, consequently needs one kind can conveniently support the straw reducing mechanism that cutting and crushing sword were changed and are adjusted to improve the adaptability to different situation straws.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an adjustable straw smashing device based on a supporting sliding cutting principle. The crushing device comprises a suspension plate 1, a right side plate 2, a crushing belt wheel 3, an upper shell 4, a left side plate 5, a fixed cutter adjusting frame 6, a crushing cutter roller 7 and a crushing fixed cutter 8, wherein the suspension plate 1 is arranged at the approximate middle position of the crushing device, one end of the suspension plate is fixedly connected with the upper shell 4, and the other end of the suspension plate is connected with the tail of a tractor, so that the crushing device is hung on the rear side of the tractor through the suspension plate 1; the right side plate 2 and the left side plate 5 are respectively arranged at two sides of the crushing device and are arranged along the vertical direction, and the suspension plate 1, the upper shell 4, the fixed cutter adjusting frame 6, the crushing cutter roller 7 and the crushing fixed cutter 8 are arranged between the left side plate and the right side plate; the crushing belt wheel 3 is arranged on the outer side of the right side plate 2 and is coaxially designed with the crushing knife roll 7, and the crushing knife roll 7 is driven to rotate simultaneously by the rotation of the crushing belt wheel 3 during work; the upper shell 4 is arranged between the right side plate 2 and the left side plate 5, and encloses the crushing knife roll 7 in the upper shell 4; the fixed cutter adjusting frame 6 is arranged on the outer side of the upper shell 4 and comprises a fixed seat 601, a fixed cover 602, a pin shaft 603, a tension spring 604, a positioning handle 605 and a fixed cutter frame 606; the crushing cutter roller 7 comprises a cutter shaft 701, a cutter holder 702, an L-shaped improved cutter 703 and a parallel straight cutter 704; one end of the rear part of the crushing fixed cutter 8 is provided with a groove, the other end of the rear part of the crushing fixed cutter 8 is provided with an arc-shaped bulge, the crushing fixed cutter 8 is a plane blade, and the curve of the working cutting edge of the crushing fixed cutter is an equiangular spiral.
The fixed seat 601 of the fixed cutter adjusting frame 6 is arranged into a hollow fan-shaped structure which is symmetrical left and right, the front part of the fixed cutter adjusting frame is provided with a plurality of grooves, the rear part of the fixed cutter adjusting frame is provided with a circular hole, the fixed seat 601 is also provided with a base, and the base is provided with a circular hole; the fixed cover 602 is divided into a front part and a rear part, the front part integrally extends in an arc shape, a circular hole is formed at the front end, the rear part integrally has a hollow structure and is used for receiving the front part, and the left side wall and the right side wall of the rear part are both provided with circular holes; the positioning handle 605 is cylindrical as a whole, and both ends thereof are provided with convex spheroids; the stationary knife holder 606 is oval as a whole, a circular hole is formed in the front part of the upper end surface of the stationary knife holder, a slot is formed in the rear part of the stationary knife holder, oval holes are formed in the front parts of the left and right side walls, and a circular hole is formed in the rear part of the stationary knife holder; the tension springs 604 are symmetrically arranged at the left side and the right side of the fixed cutter frame 606; the synchronous adjustment and fixation of the crushing fixed knife 8 are realized by adjusting the positioning handle 605 to be positioned in different clamping grooves above the fixed seat 601.
The fixed cover 602, the tension spring 604, the fixed knife rest 606 and the crushing fixed knife 8 are all positioned in the hollow fan-shaped structure of the fixed seat 601, wherein one end of the rear part of the crushing fixed knife 8 is accommodated in the slot of the fixed knife rest 606, the other end of the rear part of the crushing fixed knife 8 is accommodated in the fixed cover 602, and the arc-shaped bulge of the crushing fixed knife 8 is adapted to the arc shape of the fixed cover 602; the fixed cover 602 is fixedly connected with the front part of the fixed cutter frame 606 through bolts, the fixed seat 601, the fixed cover 602, the fixed cutter frame 606 and the rear part of the crushing fixed cutter 8 are hinged through a pin shaft 603, and a groove of the crushing fixed cutter 8 is configured on the shaft of the pin shaft 603 to ensure that the fixed cover 602, the fixed cutter frame 606 and the crushing fixed cutter 8 are fixedly connected; one end of the tension spring 604 is connected with the pin shaft 603, and the other end is connected with the positioning handle 605, so that the spherical body protruded from the positioning handle 605 limits the tension spring 604; the positioning handle 605 is arranged in an oval hole at the front part of the fixed tool rest 606 and is arranged in a groove at the fan-shaped front end of the fixed seat 601 under the action of the tension spring 604; the fixing base 601 is fixedly connected to the upper housing 4 by bolts.
The fixed cutter fixing frame 6 and the crushing fixed cutters 8 are arranged in a double-row staggered mode.
The cutter shaft 701 of the crushing cutter roller 7 is in a roller shape and is arranged on the right side plate 2 and the left side plate 5 through bearings; the tool apron 702 is welded on the cutter shaft 701 in a double-helix arrangement; the crushing moving knife is composed of two L-shaped improved knives 703 and a parallel straight knife 704, and is hinged on the knife holder 702 through a pin shaft, wherein the parallel straight knife 704 is formed by symmetrically welding the two straight knives and a T-shaped plate, and saw-shaped teeth are arranged on two sides of each straight knife.
Taking the intersection point of the plane of the crushing fixed cutter 8 and the rotation axis of the crushing cutter roller 7 as a pole O, taking tau as a slip angle, and the curve equation of the equiangular spiral is as follows:the characteristic of the equiangular spirals is that the acute angles enclosed by each ray passing through the pole O and the edge curve in the tangential direction of the point are all equal and are equal to the given slip angle of the edge line of the blade.
And the crushing fixed cutter 8 is provided with two side cutting edges at the working cutting edge position.
The invention has the beneficial effects that: according to the invention, the crushing principle of supporting cutting and sliding cutting is fully utilized, the crushing fixed knife is used as the cutting edge, the curve design of the cutting edge of the crushing fixed knife is completed by utilizing equiangular spiral, the crushing movable knife is used as the cutting support, and the supporting sliding cutting type crushing and returning device is innovatively formed under the condition of ensuring the picking capability and tearing capability of straws, so that the operation power consumption can be effectively reduced; the fixed knife adjusting frame realizes the swing adjustment of the movable crushing knife, different combinations of the fixed crushing knives can be realized by adopting multi-row arrangement, different crushing requirements of straws can be met, the fixed crushing knives are convenient to replace and adjust, and the working performance of the crushing device can be effectively ensured; the horizontal straw crushing and returning machine is suitable for further improvement of horizontal straw crushing and returning machines which are widely applied, and has the advantages of simple and compact structure, strong feasibility and good popularization benefit.
Drawings
FIG. 1 is a schematic view of an adjustable straw pulverizer of the present invention;
FIG. 2 is a top view of the adjustable straw chopper of the present invention;
FIG. 3 is a sectional view of the adjustable straw pulverizer of the present invention;
FIG. 4 is an isometric view and an exploded view of a fixed knife adjustment bracket and a crushing fixed knife of the adjustable straw crushing device of the invention;
FIG. 5 is an isometric spiral schematic diagram of the cutting edge of the fixed knife of the adjustable straw crushing device of the invention;
FIG. 6 is a schematic view of a crushing cutter roll of the adjustable straw crushing device of the present invention;
FIG. 7 is a schematic view of parallel straight knives of the adjustable straw crushing apparatus of the present invention;
FIG. 8 is a schematic view of the supporting sliding cutting operation of the adjustable straw crushing apparatus according to the present invention;
description of reference numerals: 1-a suspension bracket, 2-a right side plate, 3-a crushing belt wheel, 4-an upper shell, 5-a left side plate, 6-a fixed cutter adjusting bracket, 601-a fixed seat, 602-a fixed cover, 603-a pin shaft, 604-a tension spring, 605-a positioning handle, 606-a fixed cutter frame, 7-a crushing cutter roller, 701-a knife shaft, 702-a cutter seat, 703-an L-shaped improved cutter, 704-a parallel straight cutter, 8-a crushing fixed cutter, 9-straw, O-pole (intersection point of crushing fixed cutter plane and crushing cutter roller shaft line), M-a cutting point, V-a cutting point speed, Vr-a cutting point tangential speed, Vm-a cutting point normal speed, τ - -slip angle, C0- -intersection of the equiangular spiral curve with the X-axis.
Detailed Description
The invention is further described with reference to the following figures and detailed description. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention or its application.
As shown in fig. 1, 2 and 3, the adjustable straw crushing device based on the supporting and sliding cutting principle comprises a suspension plate 1, a right side plate 2, a crushing belt wheel 3, an upper shell 4, a left side plate 5, a fixed cutter adjusting frame 6, a crushing cutter roller 7 and a crushing fixed cutter 8. Wherein,
the suspension plate 1 is provided at a substantially middle position of the crushing apparatus, and one end thereof is fixedly connected to the upper casing 4 and the other end thereof is connected to the tail of a tractor (not shown), thereby suspending the crushing apparatus to the rear side of the tractor through the suspension plate 1.
The right and left side plates 2 and 5 are respectively provided on both sides of the crushing apparatus in a substantially polygonal plate shape arranged in a vertical direction, and the suspension plate 1, the upper casing 4, the fixed blade adjusting frame 6, the crushing roller 7 and the crushing fixed blade 8 are provided between the left and right side plates.
The crushing belt wheel 3 is arranged on the outer side of the right side plate 2, is coaxially designed with the crushing knife roll 7, and is externally connected with power through a belt pulley (not shown), and the crushing knife roll 7 is driven to rotate simultaneously through the rotation of the crushing belt wheel 3 during work.
The upper casing 4 is provided between the right side plate 2 and the left side plate 5, has a substantially axial semi-cylindrical shape, and encloses the crushing cutter roll 7 within the upper casing 4.
As shown in fig. 4, the fixed blade adjusting frame 6 is arranged outside the upper housing 4, and includes a fixing base 601, a fixing cover 602, a pin 603, a tension spring 604, a positioning handle 605, and a fixed blade frame 606. Wherein, the fixing base 601 is arranged into a bilateral symmetry hollow structure, which is substantially in a fan shape arranged in a vertical direction, the front part is provided with a plurality of grooves, the rear part is provided with a circular hole, the fixing base 601 is further provided with a base, and the base is provided with a circular hole. The fixed cover 602 is divided into a front part and a rear part, the front part integrally extends in an arc shape, a circular hole is formed in the front end, the rear part integrally has a hollow structure and is used for accommodating the front part, and the left side wall and the right side wall of the front part are respectively provided with the circular hole. The positioning handle 605 is cylindrical as a whole, and both ends thereof are provided with convex spherical bodies. The stationary knife holder 606 is oval as a whole, a circular hole is formed in the front portion of the upper end face of the stationary knife holder, a slot is formed in the rear portion of the stationary knife holder, oval holes are formed in the front portions of the left side wall and the right side wall, and a circular hole is formed in the rear portion of the stationary knife holder. The tension springs 604 are symmetrically disposed on the left and right sides of the stationary blade holder 606. As shown in fig. 5, one end of the rear part of the crushing stationary knife 8 is provided with a groove, the other end is provided with an arc-shaped protrusion, the crushing stationary knife 8 is a plane blade, the curve of the working edge of the crushing stationary knife 8 is an equiangular spiral, the intersection point of the plane of the crushing stationary knife 8 and the rotation axis of the crushing knife roller is taken as a pole O, τ is a slip-cut angle, and the curve equation of the equiangular spiral is as follows:these areThe characteristic of the angular spiral is that the acute angles of all the rays passing through the pole O and the blade edge curve in the tangential direction of the point are equal and equal to the given slip angle of the blade edge line, and in addition, the crushing fixed cutter 8 opens the double-side cutting edges at the position of the working cutting edge.
When assembling, the fixed cover 602, the tension spring 604, the fixed knife holder 606 and the crushing fixed knife 8 are all located in the hollow structure of the fixed base 601, wherein one end of the rear part of the crushing fixed knife 8 is accommodated in the slot of the fixed knife holder 606, the other end is accommodated in the fixed cover 602, and the arc-shaped protrusion of the rear part is matched with the arc-shaped protrusion of the fixed cover 602. The front parts of the fixed cover 602 and the fixed knife rest 606 are fixedly connected through bolts, the fixed seat 601, the fixed cover 602, the fixed knife rest 606 and the rear parts of the crushing fixed knives 8 are hinged through pin shafts 603, and at the moment, the grooves of the crushing fixed knives 8 are configured on the shafts of the pin shafts 603, so that the fixed cover 602, the fixed knife rest 606 and the crushing fixed knives 8 are fixedly connected. One end of the tension spring 604 is connected with the pin 603, and the other end is connected with the positioning handle 605, so that the spherical body protruded from the positioning handle 605 limits the tension spring 604 and prevents the tension spring from falling off. The positioning handle 605 is mounted in an oval hole in the front of the stationary blade holder 606 and is arranged in a recess in the front end of the sector of the stationary holder 601 under the action of the tension spring 604. The fixing base 601 is fixedly connected to the upper housing 4 by bolts.
It should be appreciated that the synchronous adjustment and fixation of the crushing stationary knife 8 can be realized by adjusting the positioning handle 605 to be located in different slots above the fixed seat 601.
As shown in fig. 1 and 2, the fixed knife fixing frame 6 and the crushing fixed knife 8 are arranged in a double-row staggered manner, and any number of fixed knives and crushing fixed knives can be arranged according to actual requirements. Meanwhile, the crushing fixed knives 8 with different sliding cutting angles can be respectively adopted to realize different combinations of the crushing fixed knives 8, and the position of the positioning handle 605 is adjusted in a matching way, so that the crushing operation requirements of the straws under different conditions in the field are met.
As shown in fig. 6 and 7, the crushing cutter roll 7 includes a cutter shaft 701, a cutter holder 702, an L-shaped modified cutter 703, and a parallel straight cutter 704. The cutter shaft 701 is in a roll shape, is mounted on the right side plate 2 and the left side plate 5 through bearings, and is arranged coaxially with the crushing belt wheel 3. The tool holders 702 are welded to the tool shaft 701 in a double-helix arrangement. A group of crushing moving cutters are formed by two L-shaped improved cutters 703 and a parallel straight cutter 704 and hinged on the cutter holder 702 through a pin shaft, wherein the parallel straight cutter 704 is formed by symmetrically welding the two straight cutters and a T-shaped plate, so that the left-right shaking can be effectively reduced when the pin shaft penetrates through the parallel straight cutter 704, and the possibility of interference is greatly reduced when the parallel straight cutter rotates at a high speed and passes through the position of the crushing fixed cutter 8. In addition, saw-shaped teeth are arranged on both sides of the straight blade.
It should be appreciated that the crushing movable blades can be arranged in any number according to actual requirements.
As shown in fig. 8, the crushing stationary knife 8 and the parallel straight knife 704 are arranged in a centering manner to form a supporting sliding cutting crushing manner. When the straw crushing device works, the crushing knife roll 7, the upper shell 4, the left side plate 5 and the right side plate 2 form a crushing chamber, the crushing knife roll 7 rotating at a high speed rolls straws into the crushing chamber to be matched with the crushing fixed knife 8 to form a supporting sliding cutting type crushing mode, and the straws are crushed in a shearing and tearing mode and thrown back to the ground.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (6)
1. An adjustable straw smashing device based on a supporting sliding cutting principle comprises a suspension plate (1), a right side plate (2), a smashing belt wheel (3), an upper shell (4), a left side plate (5), a fixed knife adjusting frame (6), a smashing knife roller (7) and a smashing fixed knife (8),
the suspension plate (1) is arranged at the approximate middle position of the crushing device, one end of the suspension plate is fixedly connected with the upper shell (4), and the other end of the suspension plate is connected with the tail of the tractor, so that the crushing device is hung at the rear side of the tractor through the suspension plate (1);
the right side plate (2) and the left side plate (5) are respectively arranged at two sides of the crushing device and are arranged along the vertical direction, and the suspension plate (1), the upper shell (4), the fixed cutter adjusting frame (6), the crushing cutter roller (7) and the crushing fixed cutter (8) are arranged between the left side plate and the right side plate;
the crushing belt wheel (3) is arranged on the outer side of the right side plate (2) and is coaxially designed with the crushing knife roll (7), and the crushing knife roll (7) is driven to rotate simultaneously by the rotation of the crushing belt wheel (3) during work;
the upper shell (4) is arranged between the right side plate (2) and the left side plate (5) and surrounds the crushing knife roller (7) in the upper shell (4);
the fixed cutter adjusting frame (6) is arranged on the outer side of the upper shell (4) and comprises a fixed seat (601), a fixed cover (602), a pin shaft (603), a tension spring (604), a positioning handle (605) and a fixed cutter frame (606);
the fixed seat (601) is arranged into a hollow fan-shaped structure which is symmetrical left and right, the fixed cover (602) is divided into a front part and a rear part, the positioning handle (605) is cylindrical as a whole, the fixed tool rest (606) is elliptical as a whole, and the tensioning springs (604) are symmetrically arranged on the left side and the right side of the fixed tool rest (606);
the crushing knife roller (7) comprises a knife shaft (701), a knife holder (702), an L-shaped improved knife (703) and parallel straight knives (704);
one end of the rear part of the crushing fixed cutter (8) is provided with a groove, the other end of the rear part of the crushing fixed cutter (8) is provided with an arc-shaped bulge, the crushing fixed cutter (8) is a plane blade, and the curve of the working cutting edge of the crushing fixed cutter is an equiangular spiral.
2. The comminution device of claim 1, wherein: the front part of a fixed seat (601) of the fixed cutter adjusting frame (6) is provided with a plurality of grooves, the rear part of the fixed seat is provided with a circular hole, the fixed seat (601) is also provided with a base, and the base is provided with a circular hole; the front part of the fixed cover (602) integrally extends in an arc shape, the front end of the fixed cover is provided with a circular hole, the rear part of the fixed cover is integrally in a hollow structure and used for accommodating the front part, and the left side wall and the right side wall of the fixed cover are both provided with circular holes; two ends of the positioning handle (605) are provided with convex spheroids; a circular hole is formed in the front part of the upper end face of the fixed cutter frame (606), a slot is formed in the rear part of the upper end face of the fixed cutter frame, elliptical holes are formed in the front parts of the left side wall and the right side wall, and a circular hole is formed in the rear part of the fixed cutter frame; the crushing fixed knife (8) is synchronously adjusted and fixed by adjusting the positioning handle (605) to be positioned in different grooves above the fixed seat (601).
3. The comminution device of claim 2, wherein: the fixed cover (602), the tension spring (604), the fixed knife rest (606) and the crushing fixed knife (8) are all positioned in a hollow fan-shaped structure of the fixed seat (601), wherein one end of the rear part of the crushing fixed knife (8) is accommodated in a slot of the fixed knife rest (606), the other end of the rear part of the crushing fixed knife (8) is accommodated in the fixed cover (602), and the arc-shaped bulge of the crushing fixed knife (8) is matched with the arc-shaped of the fixed cover (602); the fixed cover (602) is fixedly connected with the front part of the fixed cutter frame (606) through bolts, the fixed seat (601), the fixed cover (602), the fixed cutter frame (606) and the rear part of the crushing fixed cutter (8) are hinged through a pin shaft (603), and a groove of the crushing fixed cutter (8) is configured on the shaft of the pin shaft (603) to ensure that the fixed cover (602), the fixed cutter frame (606) and the crushing fixed cutter (8) are fixedly connected; one end of the tension spring (604) is connected with the pin shaft (603), and the other end of the tension spring is connected with the positioning handle (605), so that the tension spring (604) is limited by the spherical body protruded from the positioning handle (605); the positioning handle (605) is arranged in an oval hole at the front part of the fixed tool rest (606) and is arranged in a groove at the fan-shaped front end of the fixed seat (601) under the action of a tension spring (604); the fixed seat (601) is fixedly connected with the upper shell (4) through a bolt.
4. The comminution device of claim 3, wherein: the fixed knife adjusting frame (6) and the crushing fixed knife (8) adopt a double-row staggered arrangement mode.
5. The comminution device of claim 1, wherein: a cutter shaft (701) of the crushing cutter roller (7) is in a roller shape and is arranged on the right side plate (2) and the left side plate (5) through bearings; the tool apron (702) is welded on the cutter shaft (701) in a double-helix arrangement; the crushing moving knife is composed of two L-shaped improved knives (703) and a parallel straight knife (704), and is hinged on a knife holder (702) through a pin shaft, wherein the parallel straight knife (704) is formed by symmetrically welding the two straight knives and a T-shaped plate, and saw-shaped teeth are arranged on two sides of each straight knife.
6. The comminution device of claim 1, wherein: and the crushing fixed knife (8) is provided with two side cutting edges at the working cutting edge position.
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CN201610912707.9A CN106489440B (en) | 2016-10-19 | 2016-10-19 | Adjustable straw grinding device based on support sliding cutting principle |
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CN107343412A (en) * | 2017-08-18 | 2017-11-14 | 中国热带农业科学院农业机械研究所 | A kind of removable adjustable stationary knife device suitable for sugar cane leaf crushing and returning to field machine |
CN109076798B (en) * | 2018-10-20 | 2024-01-26 | 烟台大学 | Knife roller for crushing ridge culture corn straw and returning machine |
CN110521301A (en) * | 2019-10-06 | 2019-12-03 | 西北农林科技大学 | A kind of wheel throwing soil device |
CN113412725B (en) * | 2021-06-18 | 2022-07-19 | 内蒙古农业大学 | Header and self-propelled straw crushing and bundling machine are smashed to high stem crop straw |
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KR101026511B1 (en) * | 2009-02-11 | 2011-04-01 | 이성문 | Vine crusher for farm product |
CN204741867U (en) * | 2015-05-21 | 2015-11-11 | 徐州工程学院 | Straw is smashed and is gone back field with combination blade |
CN204968573U (en) * | 2015-05-21 | 2016-01-20 | 徐州工程学院 | Novel still field machine is smashed to straw |
CN105960951A (en) * | 2016-03-08 | 2016-09-28 | 淮北市协力重型机器有限责任公司 | Straw crushing returning machine |
CN105960901A (en) * | 2016-05-16 | 2016-09-28 | 安徽农业大学 | No-tillage stubble cleaning and dibbling machine |
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