CN220798965U - Bidirectional rotary tillage cutter - Google Patents

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a bidirectional rotary blade. The cutter comprises a cutter handle used for connecting a cutter shaft and a cutter head provided with a cutter edge and arranged above the cutter handle, wherein the cutter handle comprises a left cutter handle and a right cutter handle which are arranged in a mirror symmetry mode, and the lower ends of the left cutter handle and the right cutter handle are respectively provided with a bolt hole used for connecting the cutter shaft; the tool bit includes left tool bit and the right tool bit that mirror symmetry set up, the lower extreme of left tool bit and right tool bit respectively with the upper end fixed connection of left handle of a knife and right handle of a knife as an organic whole, left tool bit and right tool bit are the sheet structure that is located the coplanar. The bidirectional rotary blade can play a role in rotary tillage in forward and reverse rotation, and has simple production and manufacturing process, and the rotary blade can be used on a rotary cultivator to enable the rotary cultivator to reversely rotate in situ to continue working, so that the defects caused by turning around the rotary cultivator are avoided.

Description

Bidirectional rotary tillage cutter

Technical Field

The utility model relates to the technical field of agricultural machinery, in particular to a bidirectional rotary blade.

Background

The rotary cultivator is an agricultural machine which is driven by power to rotate a cutter shaft provided with rotary blades to cultivate land. When the rotary cultivator is used for cultivating land, the rotary blade is inserted into soil, and then the soil is turned up and thrown to one side along with the rotation of the cutter shaft. In order to reduce the resistance of digging soil as much as possible and throw the dug soil to one side, the cutter head part of the existing rotary blade is inclined to one side. For example, chinese patent 202320018496X discloses "rotary blade of portable installation", publication No. CN219373008U, through the interlock between the main tenon of single face cutting shoulder and the vice tenon of single face cutting shoulder in the convenient fixed establishment, rethread tongue and the joint between the recess are connected rotary blade monomer and installation piece, replace traditional screwed connection, effectively avoid losing of spare and accessory parts, influence the installation and the steady work of rotary blade, and then improve rotary blade's installation effectiveness. The rotary blade with the asymmetric structure has a specific rotation direction when in use, namely, the rotary blade shaft can only rotate in one direction, the rotary blade can not play a role when in reverse rotation, and the whole rotary cultivator can be rotated at the end of a field to continue cultivation. In places with small land blocks and narrow space, such as agricultural greenhouses, the rotary cultivator is very difficult to turn around, and because driving machines, such as a tractor, occupy a certain space, the rotary cultivator used for turning around can generate large-area missing land blocks, thereby affecting the exertion of mechanical efficiency.

Disclosure of utility model

The utility model provides the bidirectional rotary blade capable of exerting rotary tillage effect in forward and reverse rotation to solve the problems, so that the rotary cultivator can be reversed in situ to continue working, and the defects caused by turning around operation of the rotary cultivator are avoided.

The utility model adopts the technical scheme for solving the technical problems that:

The bidirectional rotary blade comprises a blade handle for connecting a blade shaft and a blade head with a blade, wherein the blade handle comprises a left blade handle and a right blade handle which are arranged in a mirror symmetry mode, and the lower ends of the left blade handle and the right blade handle are respectively provided with a bolt hole for connecting the blade shaft; the tool bit includes left tool bit and the right tool bit that mirror symmetry set up, the lower extreme of left tool bit and right tool bit respectively with the upper end fixed connection of left handle of a knife and right handle of a knife as an organic whole, left tool bit and right tool bit are the sheet structure that is located the coplanar.

Through this scheme, when the arbor just reverses, left tool bit and right tool bit exert the effect of rotary tillage respectively, make the rotary cultivator can reverse in the spot and continue work, avoid the drawback that the rotary cultivator operation of turning around brought.

Preferably, the left knife handle and the right knife handle are of sheet-shaped structures positioned on the same plane, and the plane where the left knife handle and the right knife handle are positioned and the plane where the left knife head and the right knife head are positioned form an obtuse included angle which is larger than 100 degrees.

Through this scheme, be favorable to making things convenient for the production and processing of rotary blade, reduction in production cost.

The left knife handle and the right knife handle are both obliquely arranged, the upper ends of the left knife handle and the right knife handle are far away from the mirror image center line, and the lower ends of the left knife head and the right knife head are obliquely arranged, the lower ends of the left knife head and the right knife head are far away from the mirror image center line.

By the scheme, the weight of the cutter head is reduced on the premise of ensuring the strength of the cutter head; the bolt holes on the left knife handle and the right knife handle are closer in distance, so that the rotary cultivator is convenient to install on a rotary cultivator cutter shaft, and the distance between the two blades above the knife handle is farther, so that the rotary cultivator is favorable for fully playing the rotary cultivation function of the blades.

Preferably, the cutting edges of the left and right cutter heads are arranged on the outer side surface far away from each other.

Through this scheme, make the cutting edge mirror symmetry on the left and right sides tool bit, the rotary tillage effect of arbor forward and reverse is unanimous.

Preferably, the knife handle and the knife head are of an integrated sheet structure with equal thickness.

By the scheme, the production and manufacturing process can be simplified, and the production cost is reduced.

Due to the adoption of the structure, the bidirectional rotary blade can play a role in rotary tillage in forward and reverse rotation, and the production and manufacturing process is simple, and the bidirectional rotary blade can be used on a rotary cultivator to enable the rotary cultivator to reversely rotate in situ to continue working, so that the defect caused by turning around the rotary cultivator is avoided.

Drawings

Fig. 1 is a schematic diagram of the front structure of an embodiment of the present utility model.

Fig. 2 is a right side view of the embodiment of fig. 1.

Fig. 3 is a schematic perspective view of a cutter shaft equipped with a bi-directional rotary blade.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings. Wherein like parts are designated by like reference numerals. It should be noted that, as used in the description below, the words "front", "back", "left", "right", "upper" and "lower" refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions away from the geometric center of a particular component, respectively.

As shown in fig. 1 and 2, the bidirectional rotary blade comprises a cutter handle and a cutter head, wherein the cutter handle is used for connecting a cutter shaft, the cutter head is arranged above the cutter handle and provided with a cutting edge, the cutter handle and the cutter head are of an integrated sheet-shaped structure with equal thickness, and the bidirectional rotary blade is manufactured by adopting processes of shearing, stamping, drilling, bending and the like through steel plates. The cutter handle comprises a left cutter handle 1 and a right cutter handle 3 which are arranged in a mirror symmetry mode, and bolt holes 6 for connecting cutter shafts are formed in the lower ends of the left cutter handle 1 and the right cutter handle 3; the tool bit includes left tool bit 2 and right tool bit 4 that mirror symmetry set up, the lower extreme of left tool bit 2 and right tool bit 4 respectively with the upper end fixed connection of left handle of a knife 1 and right handle of a knife 3 as an organic whole, left tool bit 2 and right tool bit 4 are the sheet structure that is located the coplanar. As shown in fig. 1, both the tool tip and the shank portion are mirror symmetrical about a mirror image centerline 5. The blades of the left cutter head 2 and the right cutter head 4 are arranged on the outer side surface far away from each other, and the blade parts can be subjected to special polishing and quenching treatment according to the needs so as to strengthen the sharpness or strength of the blades. Of course, the blade portion may not be specially treated if the strength of the raw material is sufficiently high. The outer sides of the left cutter head 2 and the right cutter head 4 are respectively provided with a cutting edge, and when the rotary tillage cutter shaft rotates forward to plough land, if the left cutter head 2 digs soil in front, the cutting edges on the side surfaces of the left cutter head 2 play a role in rotary tillage; on the contrary, when the rotary tillage cutter shaft reversely rotates to cultivate the land, the right cutter head 4 digs the soil in front, and the cutting edge on the side surface of the right cutter head 4 plays a role in rotary tillage.

In addition, the left knife handle 1 and the right knife handle 3 are also in a sheet structure positioned on the same plane, and as shown in fig. 2, the planes of the left knife handle 1 and the right knife handle 3 and the planes of the left knife head 2 and the right knife head 4 form obtuse included angles which are more than 100 degrees. The obtuse angle enables one of the cutting edges on two sides of the cutter head part of the rotary tillage cutter to be inserted into soil in a face-to-face manner no matter the cutter shaft rotates positively and negatively, the cutter head part is inserted into the ground in an inclined state when inserted into the soil, the resistance is small, and the excavated soil can be thrown to one side when the soil is excavated, so that the basic function of the rotary tillage machine is realized.

As a further improvement of the utility model, the left knife handle 1 and the right knife handle 3 are both obliquely arranged, the upper ends of which are far away from the mirror image center line 5, and the left knife head 2 and the right knife head 4 are both obliquely arranged, the lower ends of which are far away from the mirror image center line 5. Therefore, the left cutter handle 1 and the left cutter head 2 form a triangular bending structure, the right cutter handle 3 and the right cutter head 4 form another triangular bending structure, the two mirror symmetry triangular structures jointly form a hollow quadrilateral structure with firm structure, and the bolt holes 6 on the two cutter handles are closer in distance and can be conveniently mounted on a rotary tillage cutter shaft.

As shown in fig. 3, when in assembly, the cutter holder 7 is welded on the outer surface of the rotary tillage cutter shaft, the cutter holder 7 is of a rectangular cylindrical structure, the inner cavity of the cutter holder 7 is matched with the cross section of the cutter handle, the cutter holder 7 is provided with a mounting hole matched with the bolt hole 6, the cutter handle of the bidirectional rotary tillage cutter is correspondingly inserted into the cutter holder 7, the bolt hole 6 on the cutter handle and the mounting Kong Chongji on the cutter holder 7 are arranged, and the bolt is inserted into the mounting hole in a penetrating way and is screwed by a nut.

Although specific embodiments of the utility model have been described in detail above by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims (5)

1. The utility model provides a two-way rotary blade, includes the handle of a knife that is used for connecting the arbor, sets up the tool bit that has the cutting edge in the top of handle of a knife, its characterized in that: the cutter handle comprises a left cutter handle (1) and a right cutter handle (3) which are arranged in a mirror symmetry mode, and bolt holes for connecting cutter shafts are formed in the lower ends of the left cutter handle (1) and the right cutter handle (3); the tool bit includes left tool bit (2) and right tool bit (4) that mirror symmetry set up, the lower extreme of left tool bit (2) and right tool bit (4) respectively with the upper end fixed connection of left handle of a knife (1) and right handle of a knife (3) as an organic whole, left tool bit (2) and right tool bit (4) are the sheet structure that is located the coplanar.

2. The bi-directional rotary blade of claim 1, wherein: the left knife handle (1) and the right knife handle (3) are of a sheet-shaped structure positioned on the same plane, and the planes of the left knife handle (1) and the right knife handle (3) and the planes of the left knife head (2) and the right knife head (4) are obtuse included angles which are larger than 100 degrees.

3. The bi-directional rotary blade according to claim 1 or 2, wherein: the left knife handle (1) and the right knife handle (3) are both obliquely arranged, the upper ends of the left knife handle and the right knife handle are far away from the mirror image center line (5), and the left knife head (2) and the right knife head (4) are both obliquely arranged, the lower ends of the left knife head and the right knife head are far away from the mirror image center line (5).

4. The bi-directional rotary blade according to claim 1 or 2, wherein: the blades of the left cutter head (2) and the right cutter head (4) are arranged on the outer side surface far away from each other.

5. The bi-directional rotary blade according to claim 1 or 2, wherein: the cutter handle and the cutter head are of an integrated sheet structure with equal thickness.