CN209749062U

CN209749062U - Weed anti-winding device and rotary cultivator

Info

Publication number: CN209749062U
Application number: CN201920169190.8U
Authority: CN
Inventors: 高占文; 高希君; 张吉营; 马国权; 高红军; 马向阳; 王彦刚; 王宏亮
Original assignee: LIAONING PROVINCE INSTITUTE OF AGRICULTURAL MECHANIZATION
Current assignee: LIAONING PROVINCE INSTITUTE OF AGRICULTURAL MECHANIZATION
Priority date: 2019-01-31
Filing date: 2019-01-31
Publication date: 2019-12-10
Anticipated expiration: 2029-01-31

Abstract

A weed anti-winding device and a rotary tillage mechanism belong to the technical field of agricultural machinery. The weed anti-winding device is composed of a plurality of pairs of grass cutters, the grass cutters and the rotary blades are arranged alternately, each pair of grass cutters are symmetrically arranged on the rotary blade shaft, and the concave surfaces of the grass cutters face the reverse rotation direction of the rotary blades. The utility model discloses rotary tillage mechanism throws soil cutting backward and send, and weeds anti-winding device will want to twine the epaxial weeds of rotary tillage cutter simultaneously and cut off, throw away by centrifugal force, prevent that weeds from twining the rotary tillage arbor on, reduce the operation resistance, reduce consumption of power.

Description

Weed anti-winding device and rotary cultivator

Technical Field

The utility model belongs to the technical field of agricultural machine, especially, relate to a weeds antiwind device and rotary cultivator.

Background

With the development of dry farming techniques, rotary tillage soil preparation techniques are widely used. Because of the existence of a large amount of sundries such as weeds under the environment condition of farmland operation, sundries such as weeds are easily wound on a rotary tillage shaft cutter of the rotary tillage mechanism in the rotary tillage and soil preparation operation process, so that the operation efficiency is reduced, the power consumption is increased, and the sundries such as weeds are difficult to remove after being wound on the rotary tillage shaft cutter, thereby wasting time and energy.

SUMMERY OF THE UTILITY MODEL

To the technical problem that above-mentioned rotary cultivator exists at rotary tillage soil preparation operation in-process, the utility model provides a rotary cultivator weeds anti-winding device, during the machines operation, rotary tillage mechanism will throw the soil cutting backward and send, and weeds anti-winding device will want to twine the epaxial weeds of rotary tillage cutter to cut off simultaneously, lean on centrifugal force to throw away, prevent that weeds from twining on the rotary tillage cutter shaft, reduce the operation resistance, reduce consumption of power, improve the operating efficiency.

The purpose of the utility model is realized through the following technical scheme:

the utility model relates to a weeds anti-wind device comprises many pairs of grass cutters, and many pairs of grass cutters alternate setting with the rotary blade, every pair of grass cutter symmetry sets up on the rotary blade arbor, and the concave surface of grass cutter is towards the reverse direction of rotation of rotary blade.

Preferably, the blade of the grass cutter is spiral, the section of the cutter body is gradually reduced along the spiral direction, the helix angle alpha is 56-58 degrees, and the whole length of the cutter body is 1/4-1/5 turns.

Preferably, the concave surface and the convex surface of the grass cutter are provided with cutting edges, the concave cutting edge of the grass cutter cuts grass under the action of centrifugal force, and the convex cutting edge of the grass cutter cuts grass under the action of rotating tangential force.

The utility model relates to a rotary cultivator, reach including frame, left transmission case, left transmission shaft, gearbox, right transmission shaft, right transmission case, rotary blade axle, rotary blade weed antiwind device, weed antiwind device installs on the rotary blade axle, weed antiwind device's grass cutter and rotary blade alternate setting, the grass cutter rotates along with the rotary blade is synchronous.

The utility model has the advantages that:

The utility model discloses many alternate settings to chaff cutter and rotary blade on the rotary blade arbor, can not change original rotary cultivator structure, simple to operate. The straw cutter is spiral, and is beneficial to expanding the working range of straw cutting. Rotary tillage mechanism throws soil cutting backward and send, and weeds anti-winding device will want to twine the epaxial weeds of rotary tillage and cut off simultaneously, lean on centrifugal force to throw away, prevent that weeds from twining the rotary tillage arbor on, reduce the operation resistance, reduce consumption of power. Rotary cultivator weeds antiwind device can effectively prevent the winding of debris such as weeds to rotary tillage arbor, reduces the time and the frequency of cleaing away debris such as weeds, improves the operating efficiency.

Drawings

Fig. 1 is a main plan view of the present invention.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a schematic view of the local structure of the anti-wind mechanism of the present invention.

Fig. 4 is a side view partially schematic of fig. 3.

Fig. 5 is a schematic cross-sectional view of the grass cutter of fig. 3.

In the figure: 1. the rotary cultivator comprises a rack, 2 parts of a left transmission case, 3 parts of a left transmission shaft, 4 parts of a gearbox, 5 parts of a right transmission shaft, 6 parts of a right transmission case, 7 parts of a rotary cultivating cutter shaft, 8 parts of a rotary cultivating cutter, 9 parts of a grass cutter, 10 parts of weeds, 11 parts of a convex cutting edge and 12 parts of a concave cutting edge.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Example 1: as shown in fig. 1-2, the utility model discloses a weed anti-winding device, which comprises a plurality of pairs of grass cutters 9, a plurality of pairs of grass cutters 9 and rotary blade 8 are arranged alternately, each pair of grass cutters 9 is symmetrically arranged on the rotary blade shaft 7, and the concave surface of the grass cutters 9 faces to the reverse rotation direction of the rotary blade 8.

As shown in fig. 3 to 5, the blades of the grass cutter 9 are helical, the cross section of the cutter body gradually decreases along the helical direction, the helix angle α is 57 °, the overall length of the cutter body is 1/4 turns, which is beneficial to cutting grass and expanding the working range of cutting grass, and weeds are not easy to wind.

As shown in fig. 3-5, the concave and convex surfaces of the grass cutter have cutting edges, the concave cutting edge of the grass cutter 9 cuts grass under the action of centrifugal force, and the convex cutting edge of the grass cutter 9 cuts grass under the action of rotating tangential force, so that the grass cutting effect is improved.

As shown in fig. 1-2, the rotary tillage mechanism with the weed anti-winding device comprises a frame 1, a left transmission case 2, a left transmission shaft 3, a gear box 4, a right transmission shaft 5, a right transmission case 6, a rotary blade shaft 7, rotary blades 8 and the weed anti-winding device, wherein the weed anti-winding device is installed on the rotary blade shaft 7, the grass cutters 9 and the rotary blades 8 of the weed anti-winding device are arranged alternately, and the grass cutters 9 rotate synchronously with the rotary blades 8.

The utility model discloses at the during operation, rotary blade 8 of rotary tillage mechanism throws soil cutting backward and send, and weeds anti-winding device will want to twine the weeds 10 on the rotary blade axle 7 and cut off simultaneously, throws away by centrifugal force, prevents that weeds 10 from twining on rotary blade axle 7, reduces the operation resistance, reduces consumption of power.

Example 2: the difference between this example and example 1 is: the blade of the grass cutter 9 is spiral, the section of the cutter body is gradually reduced along the spiral direction, the helix angle alpha is 56 degrees, the whole length of the cutter body is 1/5 circles in a spiral manner, and the grass cutter is favorable for cutting grass and expanding the working range of the grass cutting.

Example 3: the difference between this example and example 1 is: the blade of the grass cutter 9 is spiral, the section of the cutter body is gradually reduced along the spiral direction, the helix angle alpha is 58 degrees, the whole length of the cutter body is 9/40 circles in a spiral manner, and the grass cutter is favorable for cutting grass and expanding the working range of the grass cutting.

Claims

1. A weed anti-wind device characterized in that: the rotary cultivator is composed of a plurality of pairs of grass cutters, the grass cutters and the rotary cultivator are arranged alternately, each pair of grass cutters are symmetrically arranged on a rotary cultivator cutter shaft, and the concave surfaces of the grass cutters face to the reverse rotation direction of the rotary cultivator cutters.

2. The weed anti-wind device according to claim 1, wherein: the blade of the grass cutter is spiral, the section of the cutter body is gradually reduced along the spiral direction, the helix angle alpha is 56-58 degrees, and the whole length of the cutter body is 1/4-1/5 circles.

3. The weed anti-wind device according to claim 1, wherein: the concave surface and the convex surface of the grass cutter are provided with cutting edges, the concave surface cutting edge of the grass cutter cuts grass under the action of centrifugal force, and the convex surface cutting edge of the grass cutter cuts grass under the action of rotating tangential force.

4. A rotary cultivator is characterized in that: the weed anti-winding device comprises a frame, a left transmission case, a left transmission shaft, a gear box, a right transmission shaft, a right transmission case, a rotary blade shaft, a rotary blade and the weed anti-winding device of any one of claims 1 to 3, wherein the weed anti-winding device is arranged on the rotary blade shaft, the grass cutters of the weed anti-winding device are arranged alternately with the rotary blade, and the grass cutters rotate synchronously with the rotary blade.