CN112690119A

CN112690119A - Shredding device

Info

Publication number: CN112690119A
Application number: CN202011616073.5A
Authority: CN
Inventors: 王军; 邢立成; 史文娟
Original assignee: Jiangsu World Agricultural Machinery Co Ltd
Current assignee: Jiangsu World Agricultural Machinery Co Ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-04-23
Also published as: WO2022141981A1

Abstract

The invention provides a chopper which comprises a left side wall and a right side wall, wherein a movable cutter roller is arranged between the left side wall and the right side wall. The plurality of movable blades are spirally arranged and distributed and detachably arranged on the movable knife roll, and any movable blade is parallel to the cross section of the movable knife roll. The fixed cutter seat is arranged below the movable cutter roller in an inclined mode, the fixed blades are arranged on the fixed cutter seat in the same direction and at even intervals, and when the movable cutter roller is driven to rotate, the movable cutter roller drives the movable blades to rotate through gaps among the fixed blades. The movable blades are spirally arranged and distributed on the surface of the movable blade roller, when the movable blade roller is positioned at any rotating position, the movable blades can be ensured to pass through gaps between the fixed blades, namely, the cutting state between the movable blades and the fixed blades can be always kept, the chopping efficiency is still improved at the conventional rotating speed of the movable blade roller, the power output cost brought by the improvement of the rotating speed is reduced, and meanwhile, the potential safety hazard brought by the damage of the dynamic balance caused by the improvement of the rotating speed is avoided.

Description

Shredding device

Technical Field

The invention relates to the technical field of crushing devices, in particular to a chopper.

Background

The grain and straw after being harvested by the combine harvester are cut up, thrown and returned to the field, which is an important measure meeting the requirement of environmental protection and not only preventing the air from being polluted by burning the straws, but also being used as organic fertilizer to fertilize the land.

If the length of the straw left after the crop is harvested by the combine harvester is too long, farmers generally clean the field by adopting a straw burning method, a large amount of smoke is generated during straw burning to seriously pollute the air, and the content of carbon dioxide in the atmosphere is increased by burning the discharged carbon dioxide, so that the greenhouse effect is aggravated; contrary to the environmental protection requirement of reducing the emission of carbon dioxide in the atmosphere.

In order to avoid the situation, the existing combine harvester adopts low stubble to harvest crops, so that the height of the straw left in the farmland is reduced, and the straw cannot be burnt. Meanwhile, the length of the straw cut by the combine harvester is long, the straw must be fully cut by the combine harvester and spread in the farmland, and when the tractor turns the land, the straw and the crushed grass left in the farmland are turned into the soil to be filled as fertilizer, so that the burning of the straw can be fundamentally avoided. The existing combine harvester grass cutter adopts the combination of four blades in a group to be crossed into a cross arrangement along the radial direction of a movable cutter roller, the blades are combined on the movable cutter roller in six rows at intervals, each group of blades is combined with 4 blades in total, the total number of blades is 24, the grass chopping performance of the combine harvester is improved by increasing the rotating speed of a main shaft of the grass cutter, and although the method achieves the grass chopping effect, a large part of power of the combine harvester is consumed. And the requirement for dynamic balance of the straw cutter is increased after the rotating speed is increased, so that the manufacturing cost of the straw cutter is directly increased.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the low distributing efficiency of the crushing device in the prior art.

To this end, the present invention proposes a chopper comprising:

a left side wall and a right side wall;

the movable knife roller is arranged between the left side wall and the right side wall;

the movable blades are spirally arranged and distributed and are detachably arranged on the movable knife roll; any movable blade is parallel to the cross section of the movable knife roller;

the fixed cutter seat is arranged below the movable cutter roller in an inclined manner;

the plurality of fixed blades are arranged on the fixed blade seats in the same direction at uniform intervals; when the movable knife roll is driven to rotate, the movable knife roll drives the movable blade to rotate through the gap between the fixed blades.

And the orthographic projections of all the movable blades on the plane where the cross section of the movable knife roller is located form a closed ring.

Further comprising:

the movable knife rests are welded and fixed on the movable knife roller; the movable blades are fixedly arranged in the movable cutter holder in a one-to-one correspondence manner.

Any movable knife seat is of an Contraband type structure; the movable blade is bolted and fixed in an Contraband-shaped mounting cavity of the movable blade holder.

In a square structure which is unfolded along a generatrix of the cylindrical movable knife roll, a plurality of movable knife seats are arranged in rows in the length direction; in the width direction, the movable cutter seats are arranged in a plurality of rows.

In the width direction, the movable cutter seats in adjacent rows are obliquely arranged in the same direction.

The movable tool holders in adjacent rows are arranged at intervals in the length direction.

Also comprises an anti-winding ring; the antiwind circle includes:

at least two ring plates which are respectively in an arc-shaped structure; all the ring plates are connected end to form a circular isolation area;

the clamping plates are fixed on one of the two connected ring plates, and a slot is formed between the clamping plates and the ring plate; the other ring plate is suitable for being inserted and fixed in the slot.

Any ring plate comprises a bottom plate and a side plate; the bottom plate is a flat plate and is bent in an arc shape; the side plates are curved plates and are arranged along the edge of the outer ring of the bottom plate.

The clamping plate is welded and fixed on the outer wall surface of the side plate.

The technical scheme of the invention has the following advantages:

1. the chopper provided by the invention comprises a left side wall and a right side wall, and the movable knife roller is arranged between the left side wall and the right side wall. The plurality of movable blades are spirally arranged and distributed and detachably arranged on the movable knife roll, and any movable blade is parallel to the cross section of the movable knife roll. The fixed cutter seat is arranged below the movable cutter roller in an inclined mode, the fixed blades are arranged on the fixed cutter seat in the same direction and at even intervals, and when the movable cutter roller is driven to rotate, the movable cutter roller drives the movable blades to rotate through gaps among the fixed blades. The movable blades are spirally arranged and distributed on the surface of the movable blade roller, when the movable blade roller is positioned at any rotating position, the movable blades can be ensured to pass through gaps between the fixed blades, namely, the cutting state between the movable blades and the fixed blades can be always kept, the chopping efficiency is still improved at the conventional rotating speed of the movable blade roller, the power output cost brought by the improvement of the rotating speed is reduced, and meanwhile, the potential safety hazard brought by the damage of the dynamic balance caused by the improvement of the rotating speed is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram of a shredder according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a stationary blade seat according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a movable knife roller in an embodiment of the present invention;

FIG. 4 is a schematic diagram illustrating a distribution structure of the movable knife holder after the movable knife roll is unfolded along a generatrix thereof according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a movable tool apron according to an embodiment of the present disclosure;

FIG. 6 is a schematic view of the assembly structure of the movable blade according to the embodiment of the present invention;

fig. 7 is a schematic structural view of an anti-tangling ring in an embodiment of the present invention.

Description of reference numerals:

1r, moving knife roll; 2r, a movable blade; 3r, a fixed cutter seat; 4r, fixing a blade; 5r, moving a tool apron; 10r, left side wall; 11r, right side wall;

K. anti-winding rings; 1k, a ring plate; 11k, a bottom plate; 12k, side plates; 2k, a clamping plate; 3k, a slot; 4k, a barrier removing groove; 5k, assembly holes.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

The present embodiment provides a shredder, as shown in fig. 1, comprising a left side wall 10r and a right side wall 11r of a grass discharge passage on a harvester, the left side wall 10r and the right side wall 11r being only partially shown in fig. 1 for the sake of clarity in showing other structures. The movable cutter roller 1r is disposed between the left side wall 10r and the right side wall 11 r. The movable knife roll 1r is a cylindrical roll. The plurality of movable blades 2r are spirally arranged and distributed and detachably arranged on the movable knife roller 1r, and any movable blade 2r is parallel to the cross section of the movable knife roller 1 r.

As shown in fig. 3, a plurality of movable knife blocks 5r are welded and fixed on the movable knife roll 1r, and the movable blades 2r are fixedly installed in the movable knife blocks 5r in a one-to-one correspondence. Each movable knife holder 5r is in Contraband-shaped structure, and in the embodiment, the movable knife blade 2r is bolted and fixed in a Contraband-shaped mounting cavity of the movable knife holder 5 r.

As shown in fig. 4, in the square structure in which the movable cutter roll 1r is spread and tiled along one of the cylindrical generatrixes, a plurality of movable cutter holders 5r are arranged in a row and inclined in the length direction, as shown in fig. 4, six movable cutter holders 5r are arranged in a row and are sequentially arranged from the first movable cutter holder 5r on the upper left at intervals in an inclined manner toward the lower right. In the width direction, the movable tool holders 5r are arranged in a plurality of rows, as shown in fig. 4, in this embodiment, the movable tool holders 5r form four rows from top to bottom, and the four rows of movable tool holders 5r are obliquely arranged in the same direction. And the moving blade seats 5r in adjacent rows are arranged at intervals one by one in the length direction, namely the first row of moving blade seats 5r and the second row of moving blade seats 5r are arranged in a staggered manner, the positions of the first row of moving blade seats 5r are the same as those of the third row of moving blade seats 5r, row by row intersection is formed, the distribution state on the moving blade roller 1r is as shown in fig. 5, the orthographic projection of all the moving blade seats 5r on the plane where the cross section of the moving blade roller 1r is located is in a closed ring shape, and as shown in fig. 6, after the moving blade 2r is arranged in the moving blade seats 5r, the moving blade 2r can also form a closed ring on the plane where the cross section of the moving blade roller 1r is located.

The fixed knife seats 3r are arranged obliquely below the movable knife roller 1r, as shown in fig. 2, a plurality of fixed knife blades 4r are arranged on the fixed knife seats 3r in the same direction and at even intervals, and a row of movable knife blades 2r are correspondingly arranged between every two adjacent fixed knife blades 4r, for example, in fig. 4, the first row of movable knife blades 2r are the movable knife blades 2r on the first movable knife seats 5r with the left number in the first row and the third row, the second row of movable knife blades 2r are the movable knife blades 2r on the first movable knife seats 5r with the left number in the second row and the fourth row, and so on.

When the movable knife roller 1r is driven to rotate, the movable knife roller 1r drives the movable blade 2r to rotate through the gap between the fixed blades 4 r. The movable blade 2r is spirally distributed on the roll surface of the movable blade roll 1r, when the movable blade roll 1r is positioned at any rotating position, the movable blade 2r can be ensured to pass through the gap between the fixed blade 4r, namely, the cutting state between the movable blade 2r and the fixed blade 4r can be always kept, the chopping efficiency is still improved under the conventional rotating speed of the movable blade roll 1r, the power output cost brought by the improvement of the rotating speed is reduced, and the potential safety hazard brought by the damage of the dynamic balance caused by the improvement of the rotating speed is avoided.

As shown in fig. 7, the anti-winding ring K is fitted over the bearing seats at both ends of the movable cutter roll 1r and fixed to the left side wall 10r and the right side wall 11 r. As shown in fig. 7, each anti-wind ring K includes at least two ring plates 1K and at least two catch plates 2K. The ring plates 1k are respectively of an arc-shaped structure, and all the ring plates 1k are connected end to form a circular isolation region. At least two clamping plates 2k which are fixed on one ring plate 1k of the two connected ring plates 1k and form a slot 3k with the ring plate 1 k; the other ring plate 1k is adapted to be inserted and fixed in the slot 3 k.

In this embodiment, as shown in fig. 7, each ring plate 1k includes a bottom plate 11k and a side plate 12k, the bottom plate 11k is a flat plate and is curved in an arc shape, and the side plate 12k is a curved plate and is disposed along an outer ring edge of the bottom plate 11 k.

In this embodiment, two ring plates 1k are provided, each of the two ring plates 1k is in a semicircular arc shape, an outer wall surface of one ring plate 1k is attached to an inner wall surface of the other ring plate 1k, holes are formed in the two superposed base plates 11k, and the two ring plates 1k are fixedly connected by bolts. The bottom plate 11k is further provided with a plurality of assembling holes 5k, the assembling holes 5k are matched with conventional bolts in size, and the bolts penetrate through the assembling holes 5k to install and fix the anti-winding ring on the left side wall 10r and the right side wall 11 r. Of course, the number of the ring plates 1k may be three or four, and the like, which are sequentially connected end to form the annular isolation region, and the specific number of the ring plates 1k is determined according to specific situations.

In this embodiment, a side plate 12k of any ring of plate 1k is perpendicular to a bottom plate 11k, a clamping plate 2k is bent in an L shape, an L-shaped short side is welded and fixed to an outer wall surface of one side plate 12k and located at two ends of the side plate 12k, the L-shaped long side and the side plate 12k are arranged in parallel, a slot 3k is formed between the clamping plate 2k and the side plate 12k, and two ends of the other side plate 12k are correspondingly inserted into the slot 3 k.

As shown in fig. 7, the bottom plate 11k is further provided with at least one obstacle clearance opening for observing or extending into other devices, in this embodiment, the obstacle clearance opening is an obstacle clearance groove 4k formed by recessing the inner ring edge of the arc-shaped bottom plate 11k toward the outer ring edge, the obstacle clearance groove 4k is integrally isosceles trapezoid, and the width of the groove opening is greater than the width of the groove bottom. The notch is located the inner circle of bottom plate 11k, and the hole that the bottom plate 11k of preventing the winding circle encloses is used for the cover to establish and fixes on the bearing frame, consequently, the notch lock is on the bearing frame surface, and the notch size is big, is more convenient for observe the inside condition. In this embodiment, two obstacle removing grooves 4k are respectively formed in the bottom plate 11k of each ring plate 1k, and the four obstacle removing grooves 4k are uniformly arranged on the circumference at intervals.

The annular isolation area is formed by the surrounding of the ring plate 1k, and the annular isolation area is suitable for being sleeved and fixed on the driving rotating shaft and blocking in the gap, so that weeds or straws are prevented from being wound on the driving rotating shaft.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A chopper, comprising:

a left side wall (10r) and a right side wall (11 r);

a movable knife roller (1r) arranged between the left side wall (10r) and the right side wall (11 r);

the movable blades (2r) are spirally arranged and distributed and are detachably arranged on the movable knife roll (1 r); any movable blade (2r) is parallel to the cross section of the movable knife roller (1 r);

the fixed cutter seat (3r) is arranged obliquely below the movable cutter roller (1 r);

the plurality of fixed blades (4r) are arranged on the fixed blade seat (3r) in the same direction at uniform intervals; when the movable knife roller (1r) is driven to rotate, the movable knife roller (1r) drives the movable blade (2r) to rotate through the gap between the fixed blades (4 r).

2. The chopper according to claim 1, wherein orthographic projections of all the movable blades (2r) on a plane on which a cross section of the movable knife roll (1r) is located enclose a closed loop.

3. The chopper of claim 2, further comprising:

the movable knife seats (5r) are welded and fixed on the movable knife roller (1 r); the movable blades (2r) are fixedly arranged in the movable cutter holder (5r) in a one-to-one correspondence mode.

4. A chopper according to claim 3, characterized in that any of the movable knife seats (5r) is of Contraband-type structure; the movable blade (2r) is fixedly bolted in an Contraband-shaped mounting cavity of the movable blade holder (5 r).

5. The chopper according to claim 4, wherein a plurality of the movable blade seats (5r) are arranged in a row in a length direction in a square structure developed along a generatrix of the movable blade roller (1r) of a cylindrical shape; the movable tool holders (5r) are arranged in a plurality of rows in the width direction.

6. The chopper according to claim 5, wherein the movable blade seats (5r) of adjacent rows are inclined in the same direction in the width direction.

7. The chopper according to claim 6, wherein the movable blade seats (5r) in adjacent rows are arranged at intervals in the length direction.

8. The chopper according to any of claims 1 to 7, further comprising an anti-wind ring (K); the anti-wind ring (K) comprises:

at least two ring plates (1k) which are respectively in an arc-shaped structure; all the ring plates (1k) are connected end to form a circular isolation area;

at least two clamping plates (2k) are fixed on one ring plate (1k) of the two connected ring plates (1k), and a slot (3k) is formed between the clamping plates and the ring plate (1 k); the other ring plate (1k) is suitable for being inserted and fixed in the slot (3 k).

9. The chopper according to claim 8, characterized in that any of the ring plates (1k) comprises a bottom plate (11k) and a side plate (12 k); the bottom plate (11k) is a flat plate and is bent in an arc shape; the side plate (12k) is a curved plate and is arranged along the edge of the outer ring of the bottom plate (11 k).

10. The chopper according to claim 9, wherein the catch plate (2k) is welded and fixed to the outer wall surface of the side plate (12 k).