CN209824506U - Rotary cutting mechanism bevel type cutter assembly - Google Patents

Abstract

The utility model discloses a rotatory cutting mechanism bevel type cutter unit, including moving knife tackle and stationary knife tackle, stationary knife tackle sets up and is moving knife tackle bottom side, moves the knife and includes the multiunit knife section, every group knife section parallel arrangement, and all connect in the main shaft, rotatory power supply is connected to the main shaft, stationary knife tackle is designed to the multi-disc stationary knife, all designs a set of stationary knife between every two sets of knife sections, every group knife section includes knife section body and knife face, this body coupling of blade is in the outer fringe of knife face, has the angle of inclination between the knife face of knife section body and pan feeding direction, forms between every two sets of knife sections and holds the chamber, the stationary knife has the adaptation the tilter that holds the chamber. The utility model relates to a this kind of rotatory cutting mechanism mitre formula cutter unit adopts the mode of miscut to realize better cutting the high-efficient low-power consumption ground of straw material, even also have good cutting effect to the higher straw of moisture content.

Description

Rotary cutting mechanism bevel type cutter assembly

Technical Field

The utility model belongs to the technical field of agricultural machine, concretely relates to rotary cutting mechanism mitre formula cutter unit spare.

Background

The round baler is provided with a rotary cutting mechanism and a baling mechanism, has high working efficiency and is widely applied. The feeding device of the round baler is usually in a spiral knife roller structure to break grass and forcibly feed materials, so that the conveying performance of the materials is improved. The working part of the knife roll is the cutting part of the knife, the cutting part consists of a cutting edge and a blade, and the acting force of the knife on the material is not only the action of the front knife surface on the material cutting layer and the cutting, but also the action of the rear knife surface caused by the rounding of the knife edge on the cutting plane and the material.

Patent literature discloses a mountain straw pulverizer with a combined knife roller, which discloses a suspension hood, wherein the suspension hood is rotatably provided with the knife roller, the knife roller is provided with a blade, and a frame is provided with a motor for driving the knife roller to rotate; the blade comprises a spiral blade and a fixed blade, the spiral blade is arranged in a spiral shape along the length direction of the knife roll, the fixed blade is arranged along the spiral direction of the spiral blade and is positioned in a spiral groove formed by the spiral blade, and the fixed blade comprises a vertical cutting part and a transverse cutting part which are integrally formed; the front end of the suspension cover bottom plate is provided with a traction step with a wedge-shaped structure, the suspension cover bottom plate is provided with a crushing table below the knife roll, and the crushing table is flush with the traction step. The fixed blades are arranged at the upper part and the lower part of the spiral blade. After the straws enter the feeder, the straws enter the shearing part from the upper part and the lower part of the spiral blade, the spiral blade is spirally wound on the cutter roll, the cutting part faces the outside of the diameter of the cutter roll, the fixed blade is parallel to the axis of the roll, the transverse fixed blade can form shearing force on the straws entering the cutting edge of the blade, and the straws which do not enter the cutting edge have resistance, so that part of the straws cannot be cut, the working efficiency is influenced, and the feeding performance is poor.

Another patent document discloses a cutter mechanism for a spiral cross-cutting machine, which includes a frame, an upper cutter roll, an upper cutter, a lower cutter roll and a lower cutter, wherein the upper cutter roll and the lower cutter roll are both disposed in the frame, the upper cutter roll is parallel to the lower cutter roll, the upper cutter is fixedly connected to the upper cutter roll, the lower cutter is fixedly connected to the lower cutter roll, the upper cutter has a length direction parallel to the axial direction of the upper cutter roll, the lower cutter has a length direction parallel to the axial direction of the lower cutter roll, the upper cutter has a cutter edge portion disposed along the length direction, the lower cutter has a cutter edge portion disposed along the length direction, the cutter edge portions of the upper cutter and the lower cutter are both in a zigzag shape, the tooth tips of the upper cutter are aligned with tooth spaces of the lower cutter, and the tooth tips of the upper cutter are aligned with the tooth spaces of the lower cutter. The minimum clearance between the side edges of the serrations in the blade portion of the upper cutter and the side edges of the serrations in the blade portion of the lower cutter was 0.02 mm. Connecting seats are respectively arranged on the circumferences of the upper knife roll and the lower knife roll, kidney-shaped holes are respectively arranged on the upper cutter and the lower cutter, bolts or screws are respectively arranged in the kidney-shaped holes, and the upper cutter and the lower cutter are respectively connected with the connecting seats on the circumferences of the upper knife roll and the lower knife roll through the bolts or the screws. The blade part of the upper cutter is positioned at the maximum diameter of the rotating circumference of the upper cutter around the upper cutter roll shaft, and the blade part of the lower cutter is positioned at the maximum diameter of the rotating circumference of the lower cutter around the lower cutter roll shaft.

The cutting mechanism is small in required shearing torque, the service lives of the cutter and the cutter roller can be prolonged, the movable cutter blade is perpendicular to the main shaft, and the movable cutter and the fixed cutter are sheared through extrusion to cut straws. In the practical use of the structure, if the straws are dry, and have certain brittleness and hardness, the straw cutting and crushing effect can be achieved under the combined action of the movable cutter and the fixed cutter; if the straws have certain humidity, under the combined action of the movable cutter and the fixed cutter, the movable cutter and the straws slide relatively in the extrusion shearing process, the straws are difficult to cut off instantly, the cutting success rate is not high, and the next binding of the binding machine is not facilitated.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model aims to provide a rotary cutting mechanism bevel type cutter assembly, the feed performance is strong, and the cutting effect is good.

The utility model discloses the technical scheme who adopts does: the utility model provides a rotatory cutting mechanism bevel type cutter unit, including moving knife tackle and stationary knife tackle, stationary knife tackle sets up and is moving knife tackle bottom side, it includes the multiunit moving blade to move the sword, every group moving blade parallel arrangement, and all connect in the main shaft, rotary power source is connected to the main shaft, stationary knife tackle is equipped with the multi-disc stationary knife, all be equipped with a set of stationary knife between every two sets of moving blade, every group moving blade includes moving blade body and knife face, blade body connects in the outer fringe of knife face, the knife face of moving blade body has the angle of inclination with the pan feeding direction between, form between every two sets of moving blade and hold the chamber, the stationary knife has the adaptation the tilter that holds the chamber. This blade has two-sided cutting edge, and in the actual operation in-process, if there is obvious wearing and tearing phenomenon in the cutting edge of one side, can overturn 180 along the main shaft direction with the blade, change another group sword and cut for a blade can be used twice, increases blade life, saves the cost.

Furthermore, the top of the moving blade body is provided with a tip part, the tip part extends to the blade surface from the tip part to two sides to form a hyperboloid, the transition line between the hyperboloid and the front surface is the blade part of the moving blade body, the front surface of the moving blade body is a curved arc surface, the blade surface is a plane, the blade surface is vertical to the main shaft, two sides of the longitudinal section of the fixed blade are hyperboloid, and the two sides of the top surface of the fixed blade form the blade part of the fixed blade.

Furthermore, the two sides of the top of the movable blade body are provided with tip portions, the tip portions extend to the two sides along the blade surfaces to form double curved surfaces, the double curved surfaces and the front transition lines are the blade portions of the movable blade body, the front surface of the movable blade body is a plane, the blade surfaces are planes, an included angle between the front normal line of the front surface of the movable blade body and the normal line of the extending surface between the blade surfaces is smaller than 45 degrees, the blade surfaces are perpendicular to the main shaft, the two sides of the longitudinal section of the fixed blade are hyperbolic, and the two sides of the top surface of the fixed blade form the blade portions of the fixed.

Further, the width of the bottom surface of the fixed knife is larger than that of the top surface, so that a knife edge with a certain inclined angle is formed.

Furthermore, the inclined plane of the fixed cutter from the starting point to the highest point along the feeding direction is gradually increased, and a gap is formed between the highest point of the inclined plane and the movable cutter set.

Furthermore, a round hole is formed in the center of the knife face, square grooves evenly distributed along the wall face are formed in the periphery of the round hole, and the knife face slides into the main shaft through the square grooves to be connected with the main shaft.

Further, the movable blades are spirally arranged.

Furthermore, a shaft sleeve is connected between each group of moving blades.

The utility model relates to a this kind of rotatory cutting mechanism mitre formula cutter unit spare can produce to the straw of feeding and cut the effect, and it is effectual to cut. When straw materials enter the fixed cutter group and the movable cutter group along the feeding direction, the movable cutter body is inclined with the feeding direction, certain shearing force is generated on the straw by the cutting part of the movable cutter body after the straw enters, the straw is extruded by the movable cutter body and the fixed cutter, the inclined movable cutter body generates inclined cutting force or cutting force on the straw, and the straw is completely cut. The beveling type cutter assembly has strong cutting force, and has higher cutting and crushing effects even if straws with certain humidity are used.

Drawings

FIG. 1 is a schematic view of a rotary cutting mechanism miter cutter assembly according to embodiments 1 and 2 of the present invention;

fig. 2 is a two-dimensional plan view of the movable blade of the bevel type cutter assembly of the rotary cutting mechanism of the embodiments 1 and 2 of the present invention;

FIG. 3 is a top view of the movable blade and the stationary blade according to embodiment 1 of the present invention;

FIG. 4 is a top view of a stationary blade according to embodiment 1 of the present invention;

fig. 5 is a cross-sectional view taken along line a-a of fig. 4 in accordance with the present invention;

fig. 6 is a top view of the movable blade and the stationary blade according to embodiment 2 of the present invention;

in the figure: 1-a source of rotational power; 2-moving the knife: 3-fixing a cutter; 4-front side of the moving blade body; 5-a blade; 21-square groove.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings and detailed description, but those skilled in the art will understand that the following described embodiments are some, not all, of the embodiments of the present invention, and are only used for illustrating the present invention, and should not be construed as limiting the scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 1, only partial structure diagrams of the movable knife set and the fixed knife set are disclosed, wherein the number of the movable knife and the fixed knife can be determined according to actual needs. The utility model provides a rotatory cutting mechanism bevel cut formula cutter unit, including moving knife tackle and stationary knife tackle, stationary knife tackle sets up and is moving knife tackle bottom side, it includes the multiunit movable blade to move sword 2, every group movable blade parallel arrangement, and all connect in the main shaft, rotary power source 1 is connected to the main shaft, stationary knife tackle is equipped with multi-disc stationary knife 3, all be equipped with a set of stationary knife 3 between every two sets of movable blade, every group movable blade includes movable blade body and knife face, blade body connects in the outer fringe of knife face, the knife face of movable blade body has the angle of inclination with the pan feeding direction within a definite time, as shown in figure 1, angle of inclination alpha is less than 180, be greater than 135. A cavity is formed between every two groups of moving blades, and the fixed knife 3 is provided with an inclined body adapted to the cavity.

The moving blade is designed into a body with a tip part, the tip part extends to the blade surface from two sides to form a hyperboloid, the transition line of the hyperboloid and the front surface is the blade part of the moving blade body, the front surface of the moving blade body is a curved arc surface, the blade surface is a plane, and the blade surface is vertical to the main shaft.

As shown in fig. 5, both sides of the longitudinal section of the fixed knife are hyperbolic, and the edge portions of the fixed knife are formed on both sides of the top surface of the fixed knife.

The width of the bottom surface of the fixed cutter is larger than that of the top surface, so that a cutting edge with a certain inclined angle is formed. The width of the bottom can improve the connecting force between the movable blade and the machine body.

The inclined plane of the fixed cutter from the starting point to the highest point is gradually increased along the feeding direction, and a gap is formed between the highest point of the inclined plane and the movable cutter set. The straw can easily enter the gap between the movable knife and the fixed knife to form a snap force, which is beneficial to the cutting of the straw.

The knife face is an oblate body and is used for being connected with the moving blade body, a round hole is formed in the center of the knife face, square grooves 21 which are evenly distributed along the wall face are formed in the periphery of the round hole, and the knife face slides into the main shaft through the square grooves to be connected with the main shaft.

The moving blades are spirally arranged, and a shaft sleeve is connected between each group of moving blades.

Example 2

As shown in fig. 1, only partial structure diagrams of the movable knife set and the fixed knife set are disclosed, wherein the number of the movable knife and the fixed knife can be determined according to actual needs. In this embodiment, the cutter unit includes moving knife tackle and stationary knife tackle, stationary knife tackle sets up and is moving knife tackle bottom side, it includes the multiunit movable blade to move sword 2, every group movable blade parallel arrangement, and all connect in the main shaft, rotary power source 1 is connected to the main shaft, stationary knife tackle is equipped with multi-disc stationary knife 3, all be equipped with a set of stationary knife 3 between every two sets of movable blade, every group movable blade includes movable blade body and knife face, blade body connects in the outer fringe of knife face, the knife face of movable blade body has the angle of inclination with the pan feeding direction between, as shown in fig. 1, angle of inclination alpha is less than 180, be greater than 135. A cavity is formed between every two groups of moving blades, and the fixed knife 3 is provided with an inclined body adapted to the cavity.

The difference between this example and example 1 is that: the movable blade is designed into a body with a tip part, the tip part extends to the blade surface from the tip part to two sides to form a hyperboloid, the transition line between the hyperboloid and the front surface is the blade part of the movable blade body, the front surface of the movable blade body is a plane, the blade surface is a plane, the included angle between the normal line of the front surface of the movable blade body and the normal line of the extending surface between the blade surfaces is less than 45 degrees, and the blade surface is perpendicular to the main shaft.

In the present embodiment, both sides of the longitudinal section of the fixed knife 3 are linear, and both sides of the top surface of the fixed knife form the edge of the fixed knife.

The width of the bottom surface of the fixed cutter is larger than that of the top surface, so that a cutting edge with a certain inclination angle is formed, the graph shows that the cutting edge part of the cutting is arranged on the top surface, and a larger shearing force can be formed between the cutting edge part and the movable cutter.

The same as embodiment 1, in this embodiment, along the feeding direction, the inclined plane from the starting point to the highest point is gradually raised, a gap is provided between the highest point of the inclined plane and the movable blade group, a circular hole is provided at the center of the blade surface, square grooves 21 uniformly arranged along the wall surface are provided around the circular hole, and the blade surface slides into the main shaft through the square grooves to be connected with the main shaft. Furthermore, the movable blades are arranged spirally, and a shaft sleeve is connected between each group of the movable blades.

The utility model relates to a this kind of rotatory cutting mechanism mitre formula cutter unit spare, stationary knife setting are at the bottom side that moves the sword, and are equipped with suitable gap between the cutter, guarantee the material unblock on the one hand, and on the other hand produces to the straw and slants and cut the effect, and it is effectual to slant. When straw materials enter the fixed cutter group and the movable cutter group along the feeding direction, the movable cutter body is inclined with the feeding direction, after the straws enter the fixed cutter group, certain shearing force is generated on the straws by the cutting part of the movable cutter body, certain pulling force can be generated on the straws due to the limited cutter space, the movable cutter body and the fixed cutter extrude the straws, the inclined movable cutter body generates oblique cutting force or cutting force on the straws, and the straws are completely cut. The beveling type cutter assembly has strong cutting force, and has higher cutting and crushing effects even if straws with certain humidity are used.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims (10)

1. The utility model provides a rotatory cutting mechanism mitre formula cutter unit which characterized in that: including moving knife tackle and stationary knife tackle, stationary knife tackle sets up and is moving knife tackle bottom side, moves the knife and includes the multiunit movable blade, every group movable blade parallel arrangement, and all connect in the main shaft, rotary power source is connected to the main shaft, stationary knife tackle is provided with the multi-disc stationary knife, all is equipped with a set of stationary knife between every two sets of movable blade, every group movable blade includes movable blade body and knife face, blade body connects in the outer fringe of knife face, the knife face of movable blade body has the angle of inclination with the pan feeding direction within a definite time, form between every two sets of movable blade and hold the chamber, the stationary knife has the adaptation the tilter that holds the chamber.

2. A rotary cutting mechanism miter cutter assembly according to claim 1, wherein: the top of the moving blade body is provided with a tip part, the tip parts on two sides start to extend to the bottoms of two side surfaces to form a hyperboloid, the transition line of the hyperboloid and the top surface is the edge part of the moving blade body, the front surface of the moving blade body is a curved arc surface, the knife surface is a plane, and the knife surface is perpendicular to the main shaft.

3. A rotary cutting mechanism miter cutter assembly according to claim 1, wherein: the top of the moving blade body is provided with a tip part, the tip part extends to the blade face from the tip part to two sides to form a hyperboloid, the hyperboloid and the transition line of the front surface are the blade part of the moving blade body, the front surface of the moving blade body is a plane, the blade face is a plane, the included angle between the positive normal line of the front surface of the moving blade body and the positive normal line of the extending surface between the blade faces is less than 45 degrees, and the blade face is perpendicular to the main shaft.

4. A rotary cutting mechanism miter cutter assembly according to claim 2, wherein: the two sides of the longitudinal section of the fixed cutter are hyperbolic curves, and the two sides of the top surface of the fixed cutter form the cutting parts of the fixed cutter.

5. A rotary cutting mechanism miter cutter assembly according to claim 4, wherein: the width of the bottom surface of the fixed cutter is larger than that of the top surface, so that a cutting edge with a certain inclined angle is formed.

6. A rotary cutting mechanism miter cutter assembly according to claim 3, wherein: the two sides of the longitudinal section of the fixed cutter are hyperbolic curves, and the two sides of the top surface of the fixed cutter form the cutting parts of the fixed cutter.

7. A rotary cutting mechanism miter cutter assembly according to claim 1, wherein: the inclined plane of the fixed cutter from the starting point to the highest point is gradually increased along the feeding direction, and a gap is formed between the highest point of the inclined plane and the movable cutter set.

8. A rotary cutting mechanism miter cutter assembly according to claim 1 or 2, wherein: the center of the knife face is provided with a round hole, the periphery of the round hole is designed into square grooves which are uniformly distributed along the wall surface, and the knife face slides into the main shaft through the square grooves to be connected with the main shaft.

9. A rotary cutting mechanism miter cutter assembly according to claim 1, wherein: the movable blades are spirally arranged.

10. A rotary cutting mechanism miter cutter assembly according to claim 9, wherein: and a shaft sleeve is connected between each group of moving blades.