CN209058106U - Straw spiral cutting and collecting device - Google Patents

Abstract

The utility model discloses a straw spiral cutting and collecting device, which belongs to the field of agricultural machinery. It overcomes the defect that the straw chopper is not conducive to the discharge of chopped straw in the box. Including a frame, the frame is provided with a bottom shell, a power device, a transmission device, a cutter shaft, and a bearing seat. There is a straw conveying outlet at the middle bottom of the bottom shell, and a serrated blade and a triangular blade are arranged on the cutter shaft. The serrated blade and the triangular blade respectively include at least three sets of blades arranged at equal angles. The serrated blade and the triangular blade are arranged at intervals and spirally arranged on the cutter shaft. On the top, the serrated blades and the triangular blades on both sides of the straw conveying outlet are symmetrically arranged, and the directions of the spiral arrangement are opposite. The utility model realizes the integration of the functions of chopping and conveying straw, which not only saves space but also improves efficiency.

Description

Straw spiral cutting and collecting device

technical field

The utility model belongs to an agricultural machine, in particular to a straw cutting and collecting device provided with a spiral.

Background technique

In order to increase the utilization rate of straw, it is often necessary to chop the straw. The chopped length of the straw after the crops is harvested has a great influence on the later crop planting, turning the ground and other agricultural operations. The chopped straw can also be used for livestock feed. At present, the straw shredding device used by most harvesters adopts the rotary cutter shredding method. However, the existing straw shredder is generally not conducive to the shredded straw being discharged outside the box for collection, and it is not convenient for cleaning inside the box. These deficiencies affect the The cutting efficiency of straw is improved. If the above problem is solved by adding a straw conveying device, the complexity of the machine will be increased.

Utility model content

In view of the deficiencies in the prior art, the purpose of the present invention is to provide a straw spiral cutting and collecting device that integrates the functions of chopping and conveying straw.

The utility model is realized by the following technical solutions:

The straw spiral cutting and collecting device includes a frame, the frame is provided with a bottom case, a power device, a transmission device, a cutter shaft, and a bearing seat, the cutter shaft is connected to the bottom case through the bearing seat, and the The power device is connected with the transmission device, the transmission device is connected with the cutter shaft, the middle bottom of the bottom shell is provided with a straw conveying outlet, the cutter shaft is provided with a serrated blade and a triangular blade, and the serrated blade and the triangular blade are respectively It includes at least three sets of blades arranged at equal angles, the serrated blades and the triangular blades are arranged at intervals and are spirally arranged on the cutter shaft, the serrated blades and the triangular blades on both sides of the straw conveying outlet are symmetrically arranged, and the directions of the spiral arrangement are opposite.

Preferably, a fixed blade is fixedly arranged in the bottom shell, and the fixed blade and the serrated blade are arranged in a staggered interval.

Preferably, a shaft sleeve is provided on the cutter shaft between adjacent serrated blades and triangular blades.

Preferably, the offset installation angle of adjacent serrated blades and triangular blades is 7°.

Preferably, the power device is a motor, the transmission device includes a belt and two sets of pulleys, and the two sets of pulleys are respectively fixed on the cutter shaft and the output shaft of the motor, and are connected by belts.

Compared with the prior art, the beneficial effects of the present utility model are:

In the utility model, the serrated blade and the triangular blade are arranged spirally on the cutter shaft at intervals to realize the integration of the functions of chopping and conveying the straw, which not only saves space but also improves the efficiency; meanwhile, the sawtooth of the serrated blade can knead the chopped straw Silk, improve the palatability of livestock, the cutting effect of the triangular blade is good, and the size of the straw fragments is moderate.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is the top view of the present utility model;

Fig. 3 is the left side view of the present utility model;

Fig. 4 is the structural representation of the cutter shaft of the present utility model;

Fig. 5 is the structural representation of the serrated blade of the present utility model;

FIG. 6 is a schematic diagram of the structure of the triangular blade of the present invention.

In the figure: 1. Frame; 2. Bottom shell; 3. Tool shaft; 4. Bearing seat; 5. Serrated blade; 6. Triangular blade; 7. Motor; 8. Pulley; 9. Belt; 10. Fixed knife; 11. Straw conveying outlet; 12. Shaft sleeve; 13. Motor frame; 14. Saw tooth.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1 to 6, the straw spiral cutting and collecting device of the present invention includes a frame 1, and the frame 1 is provided with a bottom shell 2, a power device, a transmission device, a cutter shaft 3, and a bearing seat 4. The knife shaft 3 is connected to the bottom shell 2 through the bearing seat 4, the power device is the motor 7, the motor 7 is fixed on the motor frame 13, the transmission device includes a belt 9 and two sets of pulleys 8, and the two sets of pulleys 8 are respectively fixed on the knife. The shaft 3 and the output shaft of the motor 7 are connected by a belt 9, the belt 9 can be a V-shaped belt, and the transmission device is connected with the cutter shaft 3; The cutter shaft 3 is provided with a serrated blade 5 and a triangular blade 6, the serrated blade 5 and the triangular blade 6 respectively comprise at least three groups of blades arranged at equal angles, and the serrated blade 5 and the triangular blade 6 are arranged at intervals and are spirally arranged on the cutter shaft 3, The serrated blades 5 and the triangular blades 6 on both sides of the straw conveying outlet 11 are symmetrically arranged, and the directions of the spiral arrangement are opposite. Each blade of the serrated blade 5 is provided with serrations 14, which can knead the chopped straw and improve the palatability of livestock. The triangular blade 6 is mainly used for chopping straw, and the chopping effect is good.

Preferably, a fixed knife 10 is fixedly arranged in the bottom shell 2, the fixed knife 10 and the serrated blade 5 are alternately arranged at intervals, and the fixed knife 10 is used to assist in chopping the straw.

Preferably, a shaft sleeve 12 is provided on the cutter shaft 3 between the adjacent serrated blades 5 and the triangular blade 6 , and the shaft sleeve 12 is used for the axial positioning of the serrated blade 5 and the triangular blade 6 on the cutter shaft 3 .

Preferably, the offset installation angle of the adjacent serrated blades 5 and triangular blades 6 is 7°.

The working process of the utility model: the straw harvested by the harvester falls into the bottom shell 2 through the upper opening of the bottom shell 2, and the serrated blade 5, the triangular blade 6 and the fixed knife 10 in the bottom shell 2 simultaneously act to chop and knead the straw. At the same time, the serrated blades 5 and the triangular blades 6 spirally arranged in opposite directions transport the straw to the straw transport outlet 11 from two directions, thereby realizing the collection of the straw.

Claims (5)

1. a kind of stalk helical cut collection device, including rack (1), bottom case (2), power dress are provided on the rack (1) It sets, transmission device, cutter shaft (3), bearing block (4), the cutter shaft (3) is connected on bottom case (2) by bearing block (4), described dynamic Power device is connect with transmission device, and the transmission device and cutter shaft (3) are sequentially connected, it is characterised in that: the bottom case (2) is intermediate Bottom is equipped with stalk conveying outlet (11), and the cutter shaft (3) is equipped with sawtooth blade (5) and triangular blade (6), the serrated knife Piece (5) and triangular blade (6) respectively include at least three groups of blades being angularly arranged, the sawtooth blade (5) and triangular blade (6) interval is arranged and helical arrangement is on cutter shaft (3), the sawtooth blade (5) and three of stalk conveying outlet (11) two sides Angle blade (6) is symmetrical arranged, and helical arrangement is contrary.

2. stalk helical cut collection device according to claim 1, it is characterised in that: fixation is set in the bottom case (2) It is equipped with stationary knife (10), the stationary knife (10) and sawtooth blade (5) are staggeredly spaced setting.

3. stalk helical cut collection device according to claim 1, it is characterised in that: the sawtooth blade (5) and institute The cutter shaft (3) stated between triangular blade (6) is equipped with axle sleeve (12).

4. stalk helical cut collection device according to claim 3, it is characterised in that: adjacent sawtooth blade (5) and It is 7 ° that triangular blade (6), which deviates setting angle,.

5. stalk helical cut collection device according to any one of claims 1-4, it is characterised in that: the power dress It is set to motor (7), the transmission device includes belt (9) and two groups of belt pulleys (8), and two groups of belt pulleys (8) are separately fixed at knife On axis (3) and motor (7) output shaft, and connected by belt (9).