straw picking, crushing and screening machine
Technical Field
The utility model belongs to the technical field of agricultural machine, specifically speaking is a screening machine is smashed in straw pickup.
Background
Many agricultural harvesting machines in the prior art only harvest seeds, and the straws are still left in the ground or are minced and spread in the ground. In order to not influence next-crop soil preparation operation, broken straws in a farmland are usually artificially concentrated and then treated by adopting an incineration treatment mode, the method is not beneficial to utilization of crop straw biomass resources, and smoke generated by incineration causes environmental pollution.
The plant straw smashing and harvesting machine integrating multiple functions of harvesting, smashing and the like in the prior art is generally a large-scale combined harvesting machine, is complex in structure, large in required power, large in machine size, not suitable for small land operation, high in machine price and high in operation cost, and is not suitable for the requirement of small-scale operation in rural areas at present. Chinese patent 201220264872.5 discloses a plant straw picking, crushing and screening machine, which is a small-sized agricultural machine and comprises a cutting and picking device, a spiral feeder and a chopping and cutting throwing machine. The disadvantage is that the harvested straws are not sufficiently crushed, and the harvested crushed straws also contain a large amount of dust, which brings much trouble to later use or further processing.
Disclosure of Invention
An object of the utility model is to provide a crushing sieve separator is picked up to straw, its simple structure is compact, and low cost smashes sieve native effectual, can realize picking up, smash and sieve native combined operation, and work efficiency is high.
The purpose of the utility model is realized like this: the utility model provides a screening machine is smashed in straw pickup, it includes frame and drive mechanism, its characterized in that: a crushing and throwing mechanism sharing a main shaft is respectively arranged at two sides of the rack, the crushing and throwing mechanism comprises a shell consisting of a cylinder shell, an inner side end face and an outer side end cover, a discharge cylinder is arranged at the upper part of the cylinder shell, a screen cylinder is fixedly installed on the inner side end face in the shell, a feeding port is arranged in the center of the inner side end face in the screen cylinder, and a plurality of fixed blades are fixedly installed on the inner wall of the screen cylinder; a rotor is arranged in the shell and comprises a disc fixedly arranged at the outer end of the main shaft, and a plurality of movable blades extending into the sieve cylinder and distributed annularly and a plurality of fins extending out of the sieve cylinder and distributed annularly are arranged on the disc; a straw conveying mechanism is arranged on the rack between the two crushing and throwing mechanisms and comprises two feeding grooves which are arranged in parallel from left to right, the main shaft penetrates through the two feeding grooves, and spiral blades which are opposite in rotation direction and feed to feeding openings on two sides are respectively arranged on the main shafts in the two feeding grooves; the straw picking mechanism is arranged at the front part of the rack and comprises an arc-shaped cover arranged at the front part of the rack, a picking rolling shaft is arranged below the arc-shaped cover, and a plurality of cutting picking curved knives are hinged on the picking rolling shaft; the rear part of the frame is provided with a soil screening mechanism, the soil screening mechanism comprises a screen body consisting of an upper cylindrical screen and a lower conical screen, the upper part of the screen body is provided with two feeding pipe orifices which form tangent angles with the conical screens, the discharging barrels of the two crushing and throwing mechanisms are respectively communicated with the two feeding pipe orifices, and the lower part of the screen body is provided with a discharging port; the upper part of the screen body is provided with a shaft bracket, the lower part of the shaft bracket is provided with a rotatable sleeve or a rotating shaft which extends into the screen body, the upper end of the sleeve or the rotating shaft is fixedly provided with a disc, the sleeve or the rotating shaft on the lower side surface of the disc is annularly distributed with a plurality of fins, and the lower part of the sleeve or the rotating shaft is fixedly provided with a spiral shifting piece; a shell body with soil collecting intervals is arranged around the screen body, and a soil outlet is arranged at the lower part of the shell body.
Preferably, the transmission mechanism comprises a three-shaft gear reverser and a two-shaft gear reverser, the three-shaft gear reverser comprises a front extension shaft, a rear extension shaft and a side extension shaft, the two-shaft gear reverser comprises a front extension shaft and a side extension shaft, the front extension shaft of the three-shaft gear reverser is a power input shaft connected with a rear output shaft of the power locomotive, and the side extension shaft of the three-shaft gear reverser drives the picking roller to rotate through a belt transmission mechanism or a chain transmission mechanism; the rear extension shaft of the three-shaft gear commutator is connected with the front extension shaft of the two-shaft gear commutator through a universal coupling, and the side extension shaft of the two-shaft gear commutator drives the main shaft to rotate through a belt transmission mechanism or a chain transmission mechanism.
preferably, the three-shaft gear reverser is mounted at the front upper part of the frame, and the two-shaft gear reverser is mounted at the middle upper part of the frame.
Preferably, a circular sieve sheet is arranged at the upper part of the cylindrical sieve.
Preferably, a traction frame is arranged at the front part of the frame.
Preferably, two road wheels are arranged at the middle rear part of the frame.
Preferably, the receiving platform is arranged at the rear part of the frame.
Compared with the prior art, the utility model its advantage lies in:
(1) The soil screening mechanism comprises a screen body and a shell, a plurality of fins and spiral shifting pieces are annularly distributed on a sleeve or a rotating shaft in the screen body, the crushed straws blown in from two feeding pipe openings blow the sleeve or the rotating shaft to rotate, the rotating spiral shifting pieces stir the crushed straws to rotate along the inner wall of the screen body, and under the action of wind force, dust impurities in the crushed straws enter an interlayer between the screen body and the shell and are discharged from a soil outlet; the inside rotatory garrulous straw of screen frame is discharged from the discharge gate after screening, and the soil screening does not need special configuration power, and soil screening is effectual.
(2) The two crushing and throwing mechanisms of the utility model comprise a shell, a screen cylinder is fixed in the shell, and a plurality of fixed blades are fixed on the inner wall of the screen cylinder; a plurality of movable blades extending into the sieve drum and distributed annularly and a plurality of fins extending into the sieve drum and distributed annularly are arranged on a disc which is driven by a main shaft to rotate in the shell; the plant straws can be efficiently chopped up under the cutting action of the fixed blades and the movable blades in the screen cylinder, the chopped straws enter the outer side of the screen cylinder through screen holes around the screen cylinder under the action of centrifugal force, and the chopped straws entering the outer side of the screen cylinder are thrown out from the discharge cylinder under the action of the fins. The cutting and crushing efficiency is high, the air throwing and blowing force of the crushed straws is large, and powerful wind power is provided for the soil sieving mechanism.
(3) The utility model discloses a main shaft is thrown in two crushing and is sent mechanism and straw conveying mechanism sharing, it makes drive mechanism simpler, thereby has simplified the utility model discloses an overall structure is favorable to reducing manufacturing cost.
(4) The whole structure is simple, the machine body is compact, the tractor can be used for traction operation, the transmission mechanism takes the power output shaft at the tail part of the tractor as a power source, and the running driving operation of the whole machine can be realized through the close cooperation among the universal transmission shaft, the belt pulley and the chain wheel without additionally configuring power. Low production cost, simple operation and flexible and convenient operation, and is suitable for the needs of small farmland operation and small-scale rural operation. The combined soil picking and screening machine can realize combined operation of picking, conveying, crushing and soil screening, and has high working efficiency.
Drawings
FIG. 1 is a schematic view of a front side view angle of the straw picking, smashing and screening machine of the utility model;
FIG. 2 is a schematic view of a rear side view angle of the straw picking, smashing and screening machine of the utility model;
FIG. 3 is a schematic view of the three-dimensional structure of the straw conveying mechanism and the crushing and throwing mechanism of the utility model;
FIG. 4 is a schematic view of the exploded perspective structure of the crushing and throwing mechanism of the present invention;
FIG. 5 is a schematic view of the soil sieving mechanism of the present invention with a partially cut-away three-dimensional structure;
FIG. 6 is a schematic view of the three-dimensional structure of the frame and the straw picking mechanism of the present invention;
fig. 7 is a schematic view of the three-dimensional structure of the transmission mechanism of the present invention.
in the figure: 1-frame, 2-transmission mechanism, 3-crushing and throwing mechanism, 4-straw conveying mechanism, 5-straw picking mechanism, 6-soil screening mechanism, 7-main shaft, 301-barrel shell, 302-end surface, 303-end cover, 304-discharging barrel, 305-sieving barrel, 306-feeding port, 307-fixed blade, 308-disk, 309-movable blade, 310-fin, 401-feeding groove, 402-spiral sheet, 501-arc cover, 502-picking roller, 503-cutting picking curved knife, 601-barrel sieve, 602-cone sieve, 603-feeding pipe orifice, 604-discharging port, 605-shaft frame, 606-sleeve, 607-disk, 608-fin, 609-spiral pulling sheet, 610-shell, 611-soil outlet, 612-circular sieve sheet, 201-three-shaft gear commutator, 202-front extension shaft, 203-rear extension shaft, 204-side extension shaft, 205-two-shaft gear commutator, 206-front extension shaft, 207-side extension shaft, 208-universal coupling, 101 traction frame, 102 travelling wheel and 103 material receiving platform.
Detailed Description
the present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 to 7, a straw picking, crushing and screening machine comprises a frame 1 and a transmission mechanism 2, wherein a traction frame 101 is arranged at the front part of the frame 1, two traveling wheels 102 are arranged at the middle rear part of the frame 1, and a material receiving platform 103 is arranged at the rear part of the frame 1; a crushing and throwing mechanism 3 sharing a main shaft 7 is respectively arranged at two sides of the frame 1, the crushing and throwing mechanism 3 comprises a shell body consisting of a cylinder shell 301, an inner side end face 302 and an outer side end cover 303, a discharge cylinder 304 is arranged at the upper part of the cylinder shell 301, a screen cylinder 305 is fixedly arranged on the inner side end face 302 in the shell body, a feeding port 306 is arranged at the center of the inner side end face 302 in the screen cylinder 305, and a plurality of fixed blades 307 are fixedly arranged on the inner wall of the screen cylinder 305; a rotor is arranged in the shell and comprises a disc 308 fixedly arranged at the outer end of the main shaft 7, and a plurality of movable blades 309 and a plurality of fins 310 are arranged on the inner side surface of the disc 308, extend into the sieve drum 305 and are distributed annularly; a straw conveying mechanism 4 is arranged on the frame 1 between the two crushing and throwing mechanisms 3, the straw conveying mechanism 4 comprises two feeding grooves 401 which are arranged in parallel from left to right, the main shaft 7 penetrates through the two feeding grooves 401, and spiral blades 402 which are opposite in rotation direction and feed to the feeding holes 306 on the two sides are respectively arranged on the main shaft 7 in the two feeding grooves 401; the straw picking mechanism 5 is arranged at the front part of the frame 1, the straw picking mechanism 5 comprises an arc-shaped cover 501 arranged at the front part of the frame, a picking roller 502 is arranged below the arc-shaped cover 501, and a plurality of cutting picking curved knives 503 are hinged on the picking roller 502; the rear part of the frame 1 is provided with a soil screening mechanism 6, the soil screening mechanism 6 comprises a screen body consisting of an upper cylindrical screen 601 and a lower conical screen 602, the upper part of the screen body is provided with two feeding pipe openings 603 which form a tangent angle with the conical screen 601, the discharging barrels 304 of the two crushing and throwing mechanisms 3 are respectively communicated with the two feeding pipe openings 603, and the lower part of the screen body is provided with a discharging hole 604; the upper part of the screen body is provided with a shaft bracket 605, the lower part of the shaft bracket 605 is provided with a rotatable sleeve 606 which extends into the screen body, the upper end of the sleeve 606 is fixedly provided with a disc 607, the sleeve 606 at the lower side surface position of the disc 607 is annularly distributed with a plurality of fins 608, and the lower part of the sleeve 606 is fixedly provided with a spiral shifting sheet 609; a shell 610 with soil collecting intervals is arranged around the screen body, the lower part of the shell 610 is provided with a soil outlet 611, and the upper part of the cylindrical screen 601 is provided with a circular screen sheet 612; the transmission mechanism 2 comprises a three-shaft gear reverser 201 arranged on the front upper part of the rack 1 and a two-shaft gear reverser 205 arranged on the middle upper part of the rack 1, wherein the three-shaft gear reverser 201 comprises a front extension shaft 202, a rear extension shaft 203 and a side extension shaft 204, the two-shaft gear reverser 205 comprises a front extension shaft 206 and a side extension shaft 207, the front extension shaft 202 of the three-shaft gear reverser 201 is a power input shaft connected with a rear output shaft of the power locomotive, and the side extension shaft 204 of the three-shaft gear reverser 201 drives the picking roller 502 to rotate through a belt transmission mechanism; the rear extension shaft 203 of the three-shaft gear reverser 201 is connected with the front extension shaft 206 of the two-shaft gear reverser 205 through a universal joint 208, and the side extension shaft 207 of the two-shaft gear reverser 205 drives the main shaft 7 to rotate through a chain transmission mechanism.
It should be finally noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit the protection scope of the present invention, and those skilled in the art can simply modify or replace the technical solutions of the present invention without departing from the spirit and scope of the present invention.