CN219459813U - Straw cutting and scattering device - Google Patents

Abstract

The utility model relates to the field of agricultural machinery, in particular to a straw cutting and scattering device, which is characterized in that a main body with a feed inlet is arranged at the top of the device, and a discharge outlet is arranged at one side of the main body; a fan capable of blowing the straws placed from the feed inlet to the discharge outlet and a cutter set rotating shaft with the axial direction perpendicular to the blowing direction of the fan are arranged in the main body, and a plurality of cutter set components for cutting the straws are arranged on the cutter set rotating shaft along the axial direction of the cutter set rotating shaft; the left side wall of the main body is provided with a hole for passing through a rotating wheel shaft, the left end of the rotating wheel shaft is provided with a rotating wheel, the right end of the rotating wheel shaft is connected with one end of a cutter set rotating shaft, and the other end of the cutter set rotating shaft is arranged on the right side wall of the main body; the top and bottom positions inside the main body are respectively provided with a plurality of anti-winding devices for cutting straws wound on the rotating shaft of the cutter set; a plurality of guide risers are arranged in the discharge hole, and the device is high in cutting efficiency and uniform in throwing.

Description

Straw cutting and scattering device

Technical Field

The utility model relates to the field of agricultural machinery, in particular to a straw cutting and scattering device.

Background

The straw is rich in nitrogen, phosphorus, potassium, calcium, magnesium and organic matters, is a renewable biological resource with multiple purposes, and can be used for returning to fields, manufacturing plates, processing into feeds, processing into fertilizers, preparing fuels and the like.

When the straws are returned to the field, the traditional mode comprises the steps of changing the straws into plant ash after open burning, returning the straws to the field after stacking fermentation and the like, the current mode of burning the straws is forbidden, and the stacking fermentation mode has long time and large workload, so people think of a method for crushing and returning the straws into the field, the method for crushing the straws is turned into the field to increase the fertility, and a certain time is needed for decomposing the straws, and the straws are required to be decomposed in place for sowing.

In order to improve the efficiency of smashing and returning to the field, the document with the authorized bulletin number of CN207491572U discloses a straw shredding and throwing agricultural mechanical device, the device comprises a shredding box, a straw shredding cavity is arranged in the shredding box, a straw inlet cavity is arranged on the shredding box at the left end of the straw shredding cavity, a conveying cavity is concavely arranged at the bottom end of the straw shredding cavity and positioned at the right side of a shredding knife disc, a discharging plate is fixedly arranged at the lower side of the outlet end of the straw shredding cavity, a wind cavity is arranged at the lower end of the inside of the discharging plate, and the upper end of the wind cavity penetrates through the top surface of the discharging plate through a wind hole. The utility model drives the shredding cutter disc to rotate at a high speed in the cutter disc groove through the first motor, the straws are shredded at equal length, the shredded straws fall into the straw shredding cavity, the crushed straws are conveyed to the outlet end of the straw shredding cavity through the conveying belt at the lower end of the straw shredding cavity, the crushed straws fall onto the discharging plate, the air cavity is arranged at the lower end of the discharging plate, high-pressure gas is filled into the air cavity through the blower, and the straws at the lower end of the discharging plate are blown away. There are two problems with this device: firstly, after the straw enters the cavity from the straw inlet cavity, the straw contacts the motor rotating shaft of the first motor and is wound on the motor rotating shaft along with the rotation of the motor rotating shaft to influence the cutting efficiency; secondly, the angle of throwing after the chopped straw falls on the discharge plate and is blown away by the air blower is uncertain, and the uniform throwing cannot be ensured, so that the fertility of the soil is inconsistent everywhere, and the problems of lower cutting efficiency and uneven straw throwing exist in the existing straw treatment equipment.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide the straw cutting and throwing device which is high in cutting efficiency and uniform in throwing.

The technical scheme of the utility model is as follows: the straw cutting and scattering device provided by the utility model comprises a main body, wherein the top of the main body is provided with a feed inlet, and one side of the main body is provided with a discharge outlet;

a fan capable of blowing the straws placed from the feed inlet to the discharge port and a cutter set rotating shaft with the axial direction perpendicular to the blowing direction of the fan are arranged in the main body, a plurality of cutter blade assemblies for cutting the straws are arranged on the cutter set rotating shaft along the axial direction of the cutter set rotating shaft, and the cutting direction of the cutter blade assemblies is perpendicular to the axial direction of the cutter set rotating shaft;

the left side wall of the main body is provided with a hole for passing through a rotating wheel shaft, the left end of the rotating wheel shaft is provided with a rotating wheel, the right end of the rotating wheel shaft is connected with one end of a cutter set rotating shaft, and the other end of the cutter set rotating shaft is arranged on the right side wall of the main body;

the top and bottom positions inside the main body are respectively provided with a plurality of anti-winding devices for cutting straws wound on the rotating shaft of the cutter set, and the cutting direction of the anti-winding devices is perpendicular to the axial direction of the rotating shaft of the cutter set;

the novel automatic discharging device is characterized in that a plurality of guide risers are arranged in the discharging hole and made of flexible materials, one side of each guide riser is fixedly arranged on the bottom surface of the discharging hole through a fastener, a sliding groove is formed in each guide riser, clamping pins capable of sliding along the sliding groove are arranged in each sliding groove, and a plurality of clamping grooves which are located at different positions and used for fixing the clamping pins are formed in the bottom surface of the discharging hole.

Further, the blade assembly comprises a limiting block arranged on the rotating shaft of the cutter set and a blade arranged on the limiting block through a nut.

Further, a plurality of straw interception blocks through which blades in the blade assembly can pass are arranged at the bottom position inside the main body.

Further, the bayonet lock is connected with the inner wall of the chute through a connecting wire.

Further, the anti-winding device comprises a fixing piece detachably mounted on the main body and a main cutting knife mounted on the fixing piece, wherein the cutting direction of the main cutting knife is perpendicular to the axial direction of the rotating shaft of the knife set.

Further, a plurality of longitudinal cutting knives are respectively arranged on two sides of the main cutting knives, and the cutting directions of the longitudinal cutting knives are perpendicular to the axial direction of the knife set rotating shaft.

The beneficial effects of the utility model are as follows: the device provided by the utility model has high cutting efficiency and uniform throwing, the device cuts straws through the rotatable cutter group rotating shaft and the cutter group rotating shaft, meanwhile, the top and bottom positions inside the device main body are provided with a plurality of anti-winding devices for cutting straws wound on the cutter group rotating shaft, and the cutting direction of the anti-winding devices is vertical to the axial direction of the cutter group rotating shaft, so that the cutter group rotating shaft continuously rotates to drive the cutter group rotating shaft to cut straws, and the anti-winding devices can cut the straws wound on the cutter group rotating shaft, so that the cutter group rotating shaft and the cutter group rotating shaft are protected, the influence of the straws on the cutter group rotating shaft working efficiency is weakened, the occurrence of the condition that the cutter group rotating shaft cannot be rotated by the straws is reduced, and the whole cutting efficiency of the device is improved. Meanwhile, the shape of the guide vertical plates can be changed by adjusting the positions of the clamping pins, so that the distance between the guide vertical plates is changed, and after the straws pass through the guide vertical plates, the throwing direction can also be changed along with the shape of the guide vertical plates, so that a user can adjust the shape of the guide vertical plates according to the condition that the straws are thrown into the ground, the throwing angle of the straws is changed, the straws are thrown in the ground more uniformly, and the fertility of the ground after decomposition is also more uniform.

Furthermore, the blade is connected with the limiting block through the nut, so that the blade replacement process is simpler and more convenient, and only the nut is removed and a new blade is replaced.

Further, the straw interception block can enable the blade to cut the intercepted straw more conveniently.

Further, the bayonet lock is connected through the connecting wire with the spout inner wall, can reduce the bayonet lock and drop the condition emergence that loses.

Drawings

FIG. 1 is a left side cross-sectional view of the present utility model;

FIG. 2 is a rear view of the middle blade set spindle and blade assembly of the present utility model;

FIG. 3 is a schematic view of the whole structure of the anti-winding device of the present utility model;

FIG. 4 is a schematic view of the overall structure of the deflector riser of the present utility model;

FIG. 5 is a schematic diagram of the related structure of the discharge port in the present utility model;

in the figure: 1-main body, 2-fan, 3-feed inlet, 4-discharge gate, 41-fastener, 42-guide riser, 43-bayonet lock, 44-connecting wire, 45-spout, 5-blade subassembly, 51-blade, 52-nut, 53-stopper, 6-antiwind device, 65-main cutting knife, 7-knife tackle pivot, 8-runner, 81-runner axle, 9-straw interception piece, 10-mounting, 11-longitudinal cutting knife.

Detailed Description

The utility model will be further described with reference to the accompanying drawings and examples.

In the present application, the direction of straw discharging is the back, and the opposite direction is the front, and when the user faces the discharging hole 4, the direction on the left side of the user is the left, and the direction on the right side of the user is the right.

As shown in fig. 1 and 2, the straw cutter comprises a main body 1 with a feed inlet 3 at the top, a discharge outlet 4 with a downward inclined opening direction is arranged on one side of the main body 1, a fan 2 capable of blowing straws put in from the feed inlet 3 to the discharge outlet 4 and a cutter set rotating shaft 7 with an axial direction perpendicular to the blowing direction of the fan 2 are arranged in the main body 1, a plurality of cutter set assemblies 5 for cutting straws are arranged on the cutter set rotating shaft 7 along the axial direction of the cutter set rotating shaft 7, each cutter set assembly 5 comprises a limiting block 53 arranged on the cutter set rotating shaft 7 and a cutter set 51 arranged on the limiting block 53 through a nut 52, and the cutter set rotating shaft is convenient to overhaul and replace only by detaching the nut 52. The cutting direction of the blade assembly 5 is perpendicular to the axial direction of the blade set rotation shaft 7. The straw interception block 9 which can be used for the blades 51 in the blade assembly 5 to pass through is arranged at the bottom position inside the main body 1, and the straw interception block 9 can intercept part of straw but can be used for the blades 51 to pass through, so that the blades 51 can cut the intercepted straw more easily.

As shown in fig. 1 and 2, a hole for passing through a rotating shaft 81 is formed in the left side wall of the main body 1, a rotating wheel 8 is arranged at the left end of the rotating shaft 81, the rotating wheel 8 is connected with a first motor, the right end of the rotating shaft 81 is connected with one end of a cutter set rotating shaft 7, and the other end of the cutter set rotating shaft 7 is mounted on the right side wall of the main body 1. After the device is electrified, the first motor can drive the rotating wheel 8 to rotate, the rotating wheel 8 can drive the cutter set rotating shaft 7 to rotate through the rotating wheel shaft 81, and when the cutter set rotating shaft 7 rotates, a plurality of cutter blade assemblies 5 arranged on the cutter set rotating shaft 7 can cut straws blown by the fan 2, and the cut straws can be blown to the discharge port 4 by the fan 2.

As shown in fig. 2 and 3, the top and bottom positions inside the main body 1 are respectively provided with a plurality of anti-winding devices 6 for cutting straws wound on the cutter set rotating shaft 7, and the cutting direction of the anti-winding devices 6 is perpendicular to the axial direction of the cutter set rotating shaft 7; the anti-winding device 6 comprises a fixing piece 10 detachably arranged on the main body 1 and a main cutting knife 65 arranged on the fixing piece 10, the cutting direction of the main cutting knife 65 is perpendicular to the axial direction of the knife set rotating shaft 7, the two sides of the main cutting knife 65 are respectively provided with a longitudinal cutting knife 11, the cutting direction of the longitudinal cutting knife 11 is perpendicular to the axial direction of the knife set rotating shaft 7, and the anti-winding device 6 can reduce windings on the knife set rotating shaft 7 and reduce the influence of the windings on the knife set rotating shaft 7 and the knife set assembly 5.

As shown in fig. 1, 4 and 5, a plurality of guide risers 42 capable of changing the direction of the straw flying out of the discharge hole 4 are vertically arranged on the bottom surface of the discharge hole 4, and the guide risers 42 are made of flexible materials, wherein the flexible materials are materials with certain elasticity and can be deformed, such as rubber, plastic, sponge and the like. One side of the guide vertical plate 42 is fixedly arranged on the bottom surface of the discharge port 4 through a fastening piece 41, the fastening piece 41 can be a bolt, a chute 45 is formed in the guide vertical plate 42, a clamping pin 43 capable of sliding along the chute 45 is arranged in the chute 45, a plurality of clamping grooves which are positioned at different positions and are used for fixing the clamping pin 43 are formed in the bottom surface of the discharge port 4, the clamping pin 43 is connected with the inner wall of the chute 45 through a connecting line 44, the connecting line 44 can avoid the clamping pin 43 from being lost after being taken out of the clamping groove, one side of the guide vertical plate 42 is fixedly connected with the bottom surface of the discharge port 4, but the guide vertical plate 42 can still be bent, so that after the shape of the guide vertical plate 42 and the position of the clamping pin 43 in the chute are changed according to requirements, the clamping pin 43 is pressed into the corresponding clamping groove, the guide vertical plate 42 can have a relatively fixed shape, a channel through which can be formed between the guide vertical plates 42, after the shape of the guide vertical plate 42 is changed, the guide direction of the channel can be changed, and the throwing angle of the straw can be changed.

The application steps of the utility model are as follows: the device is electrified, straw is put into the main body 1 from the feed inlet 3, the fan 2 sends the straw to the vicinity of the cutter set rotating shaft 7 through blowing, the first motor drives the cutter set rotating shaft 7 to rotate through the rotating wheel 8 and the rotating wheel shaft 81, the plurality of blade assemblies 5 arranged on the cutter set rotating shaft 7 cut the straw, the direction of the cut straw is changed after passing through the guide vertical plates 42 arranged on the discharge port 4, and then the cut straw falls on the ground more uniformly. In the cutting process, the main cutting knife 65 and the longitudinal cutting knife 11 in the anti-winding device 6 can cut straws wound on the cutter set rotating shaft 7 along the direction perpendicular to the axial direction of the cutter set rotating shaft 7, the quantity of the straws wound on the cutter set rotating shaft 7 can be greatly reduced, and the influence on the operation of the cutter set rotating shaft 7 is avoided, so that the cutting efficiency of the device is improved. When the straw is thrown, an operator can change the shape of the guide vertical plate 42 according to the self requirement so as to change the throwing direction of the straw, firstly, the bayonet 43 is pulled out of the clamping groove clamped with the guide vertical plate 42, then the guide vertical plate 42 is stirred, the bayonet 43 is slid along the sliding groove 45, the guide vertical plate 42 is adjusted to a required angle, the bayonet 43 is pressed into the clamping groove arranged at the position, the angle of the guide vertical plate 42 is temporarily fixed at the required angle, and after the shape of the guide vertical plate 42 is changed, the throwing angle of the chopped straw is changed after passing through the guide vertical plate 42.

Claims (6)

1. The straw cutting and scattering device is characterized by comprising a main body (1) with a feeding hole (3) at the top, wherein a discharging hole (4) is formed in one side of the main body (1);

a fan (2) capable of blowing the straws put in from a feed inlet (3) to a discharge outlet (4) and a cutter set rotating shaft (7) with the axial direction perpendicular to the blowing direction of the fan (2) are arranged in the main body (1), a plurality of cutter blade assemblies (5) for cutting the straws are arranged on the cutter set rotating shaft (7) along the axial direction of the cutter set rotating shaft, and the cutting direction of the cutter blade assemblies (5) is perpendicular to the axial direction of the cutter set rotating shaft (7);

the left side wall of the main body (1) is provided with a hole for passing through a rotating wheel shaft (81), the left end of the rotating wheel shaft (81) is provided with a rotating wheel (8), the right end of the rotating wheel shaft (81) is connected with one end of a cutter set rotating shaft (7), and the other end of the cutter set rotating shaft (7) is arranged on the right side wall of the main body (1);

the top and bottom positions inside the main body (1) are respectively provided with a plurality of anti-winding devices (6) for cutting straws wound on the cutter set rotating shaft (7), and the cutting direction of the anti-winding devices (6) is perpendicular to the axial direction of the cutter set rotating shaft (7);

be provided with a plurality of water conservancy diversion riser (42) in discharge gate (4), water conservancy diversion riser (42) are made by flexible material, one side of water conservancy diversion riser (42) is through fastener (41) fixed mounting on the bottom surface of discharge gate (4), spout (45) have been seted up on water conservancy diversion riser (42), be provided with in spout (45) and follow gliding bayonet lock (43) of spout (45), a plurality of draw-in groove that is used for fixed bayonet lock (43) that are located different positions have been seted up on the bottom surface of discharge gate (4).

2. A straw cutting and throwing device according to claim 1, wherein the blade assembly (5) comprises a stopper (53) mounted on the cutter set rotating shaft (7) and a blade (51) mounted on the stopper (53) by a nut (52).

3. A straw cutting and scattering device according to claim 1, characterized in that the bottom position inside the main body (1) is provided with a plurality of straw interception blocks (9) for the blades (51) in the blade assembly (5) to pass through.

4. A straw cutting and spreading device according to any one of claims 1-3, characterized in that said bayonet (43) is connected to the inner wall of the chute (45) by means of a connecting line (44).

5. A straw cutting and scattering device according to any one of claims 1-3, characterized in that the anti-winding device (6) comprises a fixing member (10) detachably mounted on the main body (1) and a main cutting blade (65) mounted on the fixing member (10), the cutting direction of the main cutting blade (65) being perpendicular to the axial direction of the blade set rotating shaft (7).

6. The straw cutting and scattering device according to claim 5, wherein a plurality of longitudinal cutting knives (11) are respectively arranged on two sides of the main cutting knife (65), and the cutting directions of the longitudinal cutting knives (11) are all perpendicular to the axial direction of the knife set rotating shaft (7).