阅读说明：本技术 一种玉米秸秆还田机及玉米秸秆还田操作方法 (Corn straw returning machine and corn straw returning operation method ) 是由 孙毅民 于 2021-07-29 设计创作，主要内容包括：一种玉米秸秆还田机及玉米秸秆还田操作方法,包括底盘、刨根爪、破碎机、传送装置、推料装置,所述刨根爪转动连接底盘下部,传送装置转动连接底盘中部,推料装置固定连接底盘上部,破碎机固定连接底盘前部；所述底盘后部具有出料口,出料口前部具有多个齿槽,齿槽前部具有下料口,下料口前部右侧具有连杆架,连杆架中间具有连杆架槽,连杆架槽垂直方向具有连杆架销轴,连杆架前部具有左右两个支撑板,支撑板上部具有支撑板孔,支撑板前部具有出渣口,下料口下部具有下滚筒支架,下滚筒支架左右两侧具有同轴的下滚筒孔,底盘下部具有四个车轴孔。(A corn straw returning machine and a corn straw returning operation method comprise a chassis, a root planing claw, a crusher, a conveying device and a material pushing device, wherein the root planing claw is rotatably connected with the lower part of the chassis, the conveying device is rotatably connected with the middle part of the chassis, the material pushing device is fixedly connected with the upper part of the chassis, and the crusher is fixedly connected with the front part of the chassis; the chassis rear portion has the discharge gate, and the discharge gate front portion has a plurality of tooth's sockets, and the tooth's socket front portion has the feed opening, and the anterior right side of feed opening has the connecting rod frame, has the connecting rod frame groove in the middle of the connecting rod frame, and connecting rod frame groove vertical direction has the connecting rod frame round pin axle, and two backup pads about the connecting rod frame front portion has, and backup pad upper portion has the backup pad hole, and the backup pad front portion has the slag notch, and the feed opening lower part has lower roller support, and the lower roller support left and right sides has coaxial lower roller hole, and the chassis lower part has four axle holes.)

1. A corn straw returning machine is characterized by comprising a chassis, a root digging claw, a crusher, a conveying device and a material pushing device, wherein the root digging claw is rotatably connected with the lower part of the chassis, the conveying device is rotatably connected with the middle part of the chassis, the material pushing device is fixedly connected with the upper part of the chassis, and the crusher is fixedly connected with the front part of the chassis; the rear part of the chassis is provided with a discharge port, the front part of the discharge port is provided with a plurality of tooth sockets, the front part of the tooth sockets is provided with a discharge port, the right side of the front part of the discharge port is provided with a connecting rod frame, the middle of the connecting rod frame is provided with a connecting rod frame groove, the vertical direction of the connecting rod frame groove is provided with a connecting rod frame pin shaft, the front part of the connecting rod frame is provided with a left supporting plate and a right supporting plate, the upper part of the supporting plate is provided with a supporting plate hole, the front part of the supporting plate is provided with a slag hole, the lower part of the discharge port is provided with a lower roller support, the left side and the right side of the lower roller support are provided with coaxial lower roller holes, the lower part of the chassis is provided with four axle holes, the circumferential direction of each root digging claw is provided with two groups of claws, the middle part of each root digging claw is provided with a root digging hole, the left side and the right side of each root digging claw is provided with a stop lever, the two axle holes on the front side and the two axle holes on the rear side are respectively and rotatably connected with a wheel, the left side of the rear side is fixedly connected with a chain wheel, the middle of the rear side axle is fixedly connected with a root digging claw hole, and each claw corresponds to one tooth socket; a plurality of material blocking plates are uniformly distributed on the outer side of the belt, the front part of the belt is rotatably connected with an upper roller, the lower side of the belt is rotatably connected with a lower roller, one side of the left side of the lower roller is fixedly connected with a third chain wheel and a second chain wheel, two sides of the upper roller are rotatably connected with support plate holes, the upper roller rotates in the support plate holes, two sides of the lower roller are rotatably connected with lower roller holes, and the lower roller rotates in the lower roller holes; the lower part of the crusher is fixedly connected with the front part of the chassis, a feeding hole of the crusher is arranged at the lower part of the front side of the conveyor belt, an input shaft at the left side of the crusher is sequentially and fixedly connected with a fourth chain wheel and a fifth chain wheel, the first chain wheel is rotationally connected with the second chain wheel through a first chain, the third chain wheel is rotationally connected with the fourth chain wheel through a second chain, and the fifth chain wheel is connected with a traction device through a chain; the material pushing device comprises a material pushing frame, a moving seat, a moving rod, a left push rod, a right push rod, a push rod spring, a moving rod spring, guide rods and a positioning device, wherein the front side and the rear side of the material pushing frame are respectively provided with a vertical plate, the left side and the right side of the vertical plate are respectively provided with a guide rod hole penetrating through the vertical plates at the two sides, the lower part of each guide rod hole is provided with a material pushing frame push rod hole, the lower part of the front side material pushing frame push rod hole is provided with a moving frame hole, the middle of the front side vertical plate is provided with a material pushing frame groove, the inside of the moving seat is provided with a moving seat inner cavity, the left side and the right side of the moving seat are respectively provided with a pair of coaxial guide rods, the lower part of each guide rod is provided with a moving seat push rod hole, the lower part of the moving seat is provided with a plurality of moving claws, the front part of the right side guide rod is provided with a guide rod groove, the front side and rear side of the moving seat upper part is respectively provided with an inclined plane, the left two guide rods are respectively connected with the left guide rod holes in a sliding way, and the right guide rod hole respectively in a sliding way, the movable seat slides in the material pushing frame, and the lower part of the material pushing frame is fixedly connected with the upper part of the chassis; the left push rod has a left push rod stop ring at the rear side, the left push rod has a vertical rod at the front side, the vertical rod has a stop shaft at the inner side, the two sides of the left push rod respectively pass through the left moving seat push rod hole and the moving seat push rod hole, the left push rod slides in the left push rod hole and the moving seat push rod hole, the left push rod stop ring is in the moving seat inner cavity, the vertical rod is in the moving seat front side, the push rod spring is sleeved outside the left push rod, the push rod spring is abutted against the left push rod stop ring at the rear side, the push rod spring is abutted against the moving seat inner cavity at the front side, the right push rod has a right push rod stop ring at the front side, the two sides of the right push rod respectively pass through the right moving seat push rod hole and the moving seat push rod hole, the right push rod slides in the moving seat push rod hole and the moving seat push rod hole at the right side, the right push rod stop ring is in the moving seat inner cavity, the push rod is sleeved outside the right push rod, the spring front side is abutted against the right push rod stop ring, the rear side of the spring is propped against the inner part of the rear side of the inner cavity of the movable seat.

2. The corn stalk returning machine as claimed in claim 1, which is characterized in that: the movable rod is characterized in that a push plate is arranged on the rear side of the movable rod, a stop plate is arranged in the middle of the movable rod, a movable rod groove is formed in the front portion of the movable rod, a movable rod hole is formed in the vertical direction of the movable rod groove, a guide rod groove is formed in the middle of the guide rod, a guide rod hole is formed in the lower portion of the guide rod, the movable rod is connected with the movable frame hole in a sliding mode, the movable rod slides in the movable frame hole, the stop plate is arranged on the front side of the movable frame hole, a movable rod spring sleeve is arranged on the outer side of the movable rod in a sleeved mode, the rear side of the movable rod spring abuts against the front side of the push plate, the front side of the movable rod spring abuts against the rear side of the movable frame hole, the guide rod hole is hinged with the movable rod hole, the guide rod is clamped in the movable rod groove, the upper side of the guide rod is in clearance sliding connection with the front side of the right push rod, the upper side of the guide rod is clamped in the guide rod groove, the guide rod groove is connected with a connecting rod frame pin shaft in a sliding mode, the guide rod groove slides on the connecting rod frame pin shaft, and the guide rod groove is clamped in the connecting rod frame groove.

3. The corn stalk returning machine as claimed in claim 2, wherein the positioning device comprises a positioning sleeve, a positioning pin and a positioning pin spring, the positioning sleeve is internally provided with a positioning sleeve hole, the lower part of the positioning sleeve hole is provided with a positioning pin hole, the upper part of the positioning pin is provided with a stop shoulder, the stop shoulder is slidably connected with the positioning sleeve hole, the positioning pin spring is placed in the positioning sleeve hole, the upper part of the positioning sleeve is fixedly connected with the lower part of the material pushing frame, the upper part of the positioning pin spring abuts against the lower part of the material pushing frame, the lower part of the positioning pin spring abuts against the upper part of the stop shoulder, and the positioning pin is in clearance and is slidably connected with inclined planes at two sides.

4. The corn stalk returning operation method of claim 2, wherein the corn stalk returning machine is connected to a tractor, the tractor is driven to start the tractor, and the power device is turned on, so that the corn stalk returning machine can automatically crush and throw the root of the stalk in the soil to the field.

Technical Field

The invention relates to the field of agricultural machinery, in particular to a corn straw returning machine and a corn straw returning operation method.

Background

After the corn is harvested, the corn root straws are left in the soil, soil hardening is caused, secondary cultivation is not facilitated, the soil granular structure can be improved only by taking out and crushing the corn root straws and returning the corn root straws to the field, soil organic matters and soil moisture retention in the same period are increased, and equipment for taking out the corn root straws and crushing the corn root straws and returning the corn root straws to the field is needed.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a corn straw returning machine for taking out corn root straws and crushing the corn root straws for returning the corn straws to the field and a corn straw returning operation method.

The purpose of the invention is realized by the following technical scheme:

a corn straw returning machine and a corn straw returning operation method comprise a chassis, a root planing claw, a crusher, a conveying device and a material pushing device, wherein the root planing claw is rotatably connected with the lower part of the chassis, the conveying device is rotatably connected with the middle part of the chassis, the material pushing device is fixedly connected with the upper part of the chassis, and the crusher is fixedly connected with the front part of the chassis; the rear part of the chassis is provided with a discharge port, the front part of the discharge port is provided with a plurality of tooth sockets, the front part of the tooth sockets is provided with a discharge port, the right side of the front part of the discharge port is provided with a connecting rod frame, the middle of the connecting rod frame is provided with a connecting rod frame groove, the vertical direction of the connecting rod frame groove is provided with a connecting rod frame pin shaft, the front part of the connecting rod frame is provided with a left supporting plate and a right supporting plate, the upper part of the supporting plate is provided with a supporting plate hole, the front part of the supporting plate is provided with a slag hole, the lower part of the discharge port is provided with a lower roller support, the left side and the right side of the lower roller support are provided with coaxial lower roller holes, the lower part of the chassis is provided with four axle holes, the circumferential direction of each root digging claw is provided with two groups of claws, the middle part of each root digging claw is provided with a root digging hole, the left side and the right side of each root digging claw is provided with a stop lever, the two axle holes on the front side and the two axle holes on the rear side are respectively and rotatably connected with a wheel, the left side of the rear side is fixedly connected with a chain wheel, the middle of the rear side axle is fixedly connected with a root digging claw hole, and each claw corresponds to one tooth socket.

Conveyer includes conveyer belt, upper roll, lower roll, No. three sprocket, and a plurality of striker plates of conveyer belt outside equipartition, and the conveyer belt front portion rotates connects the upper roll, and the conveyer belt downside rotates connects the lower roll, and No. three sprocket of lower roll left side one side fixed connection, No. two sprockets rotate the connection support diaphragm orifice in upper roll both sides, and the upper roll rotates in the backup pad hole, and lower roll both sides rotate connects lower roll hole, and the lower roll rotates under in the roll hole.

The crusher is characterized in that the lower portion of the crusher is fixedly connected with the front portion of the chassis, a feeding port of the crusher is arranged on the lower portion of the front side of the conveyor belt, an input shaft on the left side of the crusher is fixedly connected with a fourth chain wheel and a fifth chain wheel in sequence, a first chain wheel and a second chain wheel are connected through a chain in a rotating mode, a third chain wheel and a fourth chain wheel are connected through a second chain in a rotating mode, and a fifth chain wheel is connected with a traction device through a chain.

The material pushing device comprises a material pushing frame, a moving seat, a moving rod, a left push rod, a right push rod, a push rod spring, a moving rod spring, guide rods and a positioning device, wherein the front side and the rear side of the material pushing frame are respectively provided with a vertical plate, the left side and the right side of the vertical plate are respectively provided with a guide rod hole penetrating through the vertical plates at the two sides, the lower part of each guide rod hole is provided with a material pushing frame push rod hole, the lower part of the front side material pushing frame push rod hole is provided with a moving frame hole, the middle of the front side vertical plate is provided with a material pushing frame groove, the inside of the moving seat is provided with a moving seat inner cavity, the left side and the right side of the moving seat are respectively provided with a pair of coaxial guide rods, the lower part of each guide rod is provided with a moving seat push rod hole, the lower part of the moving seat is provided with a plurality of moving claws, the front part of the right side guide rod is provided with a guide rod groove, the front side and rear side of the moving seat upper part is respectively provided with an inclined plane, the left two guide rods are respectively connected with the left guide rod holes in a sliding way, and the right guide rod hole respectively in a sliding way, the movable seat slides in the material pushing frame, and the lower part of the material pushing frame is fixedly connected with the upper part of the chassis.

The left push rod has a left push rod stop ring at the rear side, the left push rod has a vertical rod at the front side, the vertical rod has a stop shaft at the inner side, the two sides of the left push rod respectively pass through the left moving seat push rod hole and the moving seat push rod hole, the left push rod slides in the left push rod hole and the moving seat push rod hole, the left push rod stop ring is in the moving seat inner cavity, the vertical rod is in the moving seat front side, the push rod spring is sleeved outside the left push rod, the push rod spring is abutted against the left push rod stop ring at the rear side, the push rod spring is abutted against the moving seat inner cavity at the front side, the right push rod has a right push rod stop ring at the front side, the two sides of the right push rod respectively pass through the right moving seat push rod hole and the moving seat push rod hole, the right push rod slides in the moving seat push rod hole and the moving seat push rod hole at the right side, the right push rod stop ring is in the moving seat inner cavity, the push rod is sleeved outside the right push rod, the spring front side is abutted against the right push rod stop ring, the rear side of the spring is propped against the inner part of the rear side of the inner cavity of the movable seat.

The movable rod is characterized in that a push plate is arranged on the rear side of the movable rod, a stop plate is arranged in the middle of the movable rod, a movable rod groove is formed in the front portion of the movable rod, a movable rod hole is formed in the vertical direction of the movable rod groove, a guide rod groove is formed in the middle of the guide rod, a guide rod hole is formed in the lower portion of the guide rod, the movable rod is connected with the movable frame hole in a sliding mode, the movable rod slides in the movable frame hole, the stop plate is arranged on the front side of the movable frame hole, a movable rod spring sleeve is arranged on the outer side of the movable rod in a sleeved mode, the rear side of the movable rod spring abuts against the front side of the push plate, the front side of the movable rod spring abuts against the rear side of the movable frame hole, the guide rod hole is hinged with the movable rod hole, the guide rod is clamped in the movable rod groove, the upper side of the guide rod is in clearance sliding connection with the front side of the right push rod, the upper side of the guide rod is clamped in the guide rod groove, the guide rod groove is connected with a connecting rod frame pin shaft in a sliding mode, the guide rod groove slides on the connecting rod frame pin shaft, and the guide rod groove is clamped in the connecting rod frame groove.

The positioning device comprises a positioning sleeve, a positioning pin and a positioning pin spring, wherein a positioning sleeve hole is formed in the positioning sleeve, a positioning pin hole is formed in the lower portion of the positioning sleeve hole, a blocking shoulder is arranged on the upper portion of the positioning pin and is in sliding connection with the positioning sleeve hole, the positioning pin spring is placed in the positioning sleeve hole, the upper portion of the positioning sleeve is fixedly connected with the lower portion of the material pushing frame, the upper portion of the positioning pin spring abuts against the lower portion of the material pushing frame, the lower portion of the positioning pin spring abuts against the upper portion of the blocking shoulder, and the positioning pin is in clearance connection with inclined planes on two sides in a sliding mode.

Has the advantages that: the invention is connected with a motor vehicle and transmits power, each moving part meets the moving requirements of different parts through a chain wheel, when a tractor moves forward, the power is transmitted to an output shaft of a crusher through a fifth chain wheel, a fourth chain wheel drives a third chain wheel to rotate through a second chain, the third chain wheel drives a lower roller to rotate, the lower roller drives a conveyor belt to rotate, the third chain wheel drives a second chain wheel to rotate, the second chain wheel drives a first chain wheel to rotate through a first chain, the first chain wheel rotates to drive an axle to rotate, the axle drives a root planing claw to rotate, the root planing claw rotates, the claw can penetrate into soil, the claw can grasp the root of the straw in the soil along with the continuous rotation of the root planing claw, the root of the straw is taken out of the soil by the claw, the root of the straw taken out of the soil turns over from a discharge hole, the root planing claw continues to rotate, the left blocking rod can touch the blocking shaft, the root planing claw continues to rotate, the blocking rod pushes the blocking shaft to move forwards, the left push rod moves along with the forward movement, the left push rod moves, a push rod spring sleeved on the left push rod is compressed under the action of a left push rod stop ring, the inclined plane at the upper part of the moving seat is blocked by a locating pin at the moment, the elastic force of the push rod spring is transmitted to a locating pin through the inclined plane, the locating pin is pressed by the locating pin spring, the push rod spring is continuously compressed, the elastic force is gradually increased, when the elastic force of the push rod spring is increased to a certain degree, the locating pin spring is not enough to press the locating pin, the locating pin is pushed upwards, the locating pin slides to the upper part of the moving seat along the inclined plane and loses the blocking, the moving seat slides to the front part rapidly under the elastic force of the push rod spring, the moving seat slides to the front part, the moving claw passes through the middle of the straw and rapidly moves forwards, and the moving seat moves to the front part and is blocked and stops by a front vertical plate when the moving seat moves to the front part, the root of the straw is pushed to the upper part of the feed opening by the movable claw and falls to the upper part of the conveyor belt from the feed opening, the root of the straw falling to the upper part of the conveyor belt is driven by the baffle plate and is conveyed to the upper part of the conveyor belt and falls to the inlet of the crusher, the root of the straw entering the crusher is crushed and is discharged from the outlet at the lower part of the crusher and falls to the field from the slag outlet, the root digging claw continuously rotates, the baffle rod at the right side can touch the push plate at the moment, the push plate is pushed forwards by the baffle rod at the right side, the movable rod slides forwards along the hole of the movable frame, the spring of the movable rod is compressed, the movable rod moves forwards, the lower part of the guide rod is pushed forwards, the hole of the guide rod rotates around the pin shaft of the connecting rod frame, the upper part of the guide rod moves backwards, the upper part of the guide rod pushes the right push rod to move backwards, the function and the function of the right push rod are the same as the left push rod, the movable seat is pushed backwards to reset from the front side along with the rotation of the root digging claw, the movable seat is reset, the movable rod also resets under the action of the movable rod spring to complete an action cycle, and the movable rod starts to rotate along with the root digging claw, so that the root of the straw is continuously dug out and crushed and is discharged into the field.

The claws adopt two groups of circular digging to prevent the roots of the straws from being left, the claws adopt arc-shaped tooth-shaped structures, the claws face downwards when the straws enter the ground, the claws face upwards when the straws leave the ground, a plurality of claws form a group to reduce the resistance of the claws to the ground, the claws can also be favorable for drilling the insides of the straws, meanwhile, the roots of the straws can be brought out from the soil and can be conveyed to the upper part of the chassis along with the rotation of the root digging claw, the blocking rod adopts a strip-shaped structure, the blocking rod cuts into the soil during the rotation, the blocking rod automatically touches the blocking shaft and automatically breaks away from the blocking shaft along with the rotation of the root digging claw, the movable claws also adopt tooth-shaped structures, the movable claws and the claws are arranged in a staggered way, when the movable claws push the roots of the straws, the movable claws pass through gaps in the middles of the claws without interference with the claws, and the front, the rear, the left and the right guide rods respectively slide in the guide rod holes, so that the movable base is balanced in stress and stable in sliding, and the phenomenon of blocking of the movable base is avoided, the pushing of the root of the straw is influenced, the right push rod and the left push rod respectively slide in a push rod hole of a moving seat and a push rod hole of a material pushing frame on the same side, the right push rod and the left push rod are prevented from being deformed due to stress and blocked, the pushing of the moving seat is also ensured, the head part of the positioning pin adopts a circular mechanism, the friction force contacting with an inclined plane is reduced, the sliding of the positioning pin is facilitated, the front side of the moving rod is blocked in a groove of a connecting rod frame, the lower side of the guide rod is blocked in the groove of the moving rod, when the moving rod pushes the guide rod, the upper part of the guide rod is blocked in the groove of the guide rod, so that the guide rod can be accurately aligned with the front side of the right push rod, the deformation of the guide rod due to stress is prevented, the pushing of the right push rod is influenced, the material pushing frame, the moving seat, the moving rod, the left push rod, the right push rod, the push rod spring, the spring of the moving rod spring, the spring of the guide rod and the guide rod form a fast moving mechanism, when the root of the straw is driven upper part by the root-planing claw, the moving claw is rapidly pushed to the conveying belt, the rotation of the root digging claw is not influenced.

Drawings

FIG. 1 is a left side schematic view of a corn stalk returning machine and a corn stalk returning operation method according to the present invention.

FIG. 2 is a right side schematic view of the corn stalk returning machine and the corn stalk returning operation method according to the present invention.

Fig. 3 is a schematic structural view of the movable seat of the present invention at the rear side.

Fig. 4 is a right side schematic view of the movable seat of the present invention when the movable seat is arranged at the rear side.

FIG. 5 is a schematic front side view of the movable base according to the present invention.

Fig. 6 is a right side schematic view of the movable seat of the present invention.

Fig. 7 is a schematic view of the connection structure of the chassis and the root claw according to the present invention.

Fig. 8 is a schematic view of the bottom structure of the connection between the chassis and the root digging claw according to the present invention.

Fig. 9 is a schematic view of the structure of the chassis according to the present invention.

Fig. 10 is a bottom structure diagram of the chassis according to the present invention.

Fig. 11 is a schematic structural view of the root digging claw according to the present invention.

Fig. 12 is a schematic structural diagram of a conveying device according to the present invention.

Fig. 13 is a schematic structural view of a material pushing device according to the present invention.

Fig. 14 is a right side structural schematic view of the pushing device according to the present invention.

Fig. 15 is a schematic structural view of a pushing process of the pushing device according to the present invention.

Fig. 16 is an exploded view of the connection of the movable base according to the present invention.

Fig. 17 is a schematic structural diagram of the material pushing frame according to the present invention.

Fig. 18 is a schematic view of the movable base according to the present invention.

Fig. 19 is a schematic view of the structure of the moving rod according to the present invention.

Fig. 20 is a schematic structural diagram of a positioning device according to the present invention.

Detailed Description

The invention is explained in more detail below with reference to the figures and examples:

a corn straw returning machine comprises a chassis 110, a root digging claw 130, a crusher 190, a conveying device 200 and a material pushing device 300, wherein the root digging claw 130 is rotatably connected with the lower part of the chassis 110, the conveying device 200 is rotatably connected with the middle part of the chassis 110, the material pushing device 300 is fixedly connected with the upper part of the chassis 110, and the crusher 190 is fixedly connected with the front part of the chassis 110; the rear part of the chassis 110 is provided with a discharge port 112, the front part of the discharge port 112 is provided with a plurality of tooth sockets 113, the front part of the tooth sockets 113 is provided with a feed opening 111, the right side of the front part of the feed opening 111 is provided with a connecting rod frame 117, the middle of the connecting rod frame 117 is provided with a connecting rod frame groove 118, the vertical direction of the connecting rod frame groove 118 is provided with a connecting rod frame pin shaft 119, the front part of the connecting rod frame 117 is provided with a left supporting plate 115 and a right supporting plate 115, the upper part of the supporting plate 115 is provided with a supporting plate hole 116, the front part of the support plate 115 is provided with a slag outlet 114, the lower part of the feed opening 111 is provided with a lower roller bracket 121, the left side and the right side of the lower roller bracket 121 are provided with coaxial lower roller holes 122, the lower part of the chassis 110 is provided with four axle holes, the root planing claw 130 is provided with two groups of claws 131 in the circumferential direction, the middle part of the root planing claw 130 is provided with a root claw hole 133, the left side and the right side of the left side of the lower roller bracket 121 are respectively rotatably connected with a gear lever 132, the two axle holes of the front side of the two axle holes of the rear side are respectively rotatably connected with an axle 140, the axle hole of the, the first chain wheel 160 is fixedly connected to the left side of the rear axle 140, the root digging claw hole 133 is fixedly connected to the middle of the rear axle 140, and each claw 131 corresponds to one tooth groove 113.

The conveying device 200 comprises a conveying belt 210, an upper roller 220, a lower roller 230 and a third chain wheel 241, a plurality of material blocking plates 211 are uniformly distributed on the outer side of the conveying belt 210, the front portion of the conveying belt 210 is rotatably connected with the upper roller 220, the lower side of the conveying belt 210 is rotatably connected with the lower roller 230, the third chain wheel 241 and the second chain wheel 240 are fixedly connected to one side of the left side of the lower roller 230, two sides of the upper roller 220 are rotatably connected with supporting plate holes 116, the upper roller 220 rotates in the supporting plate holes 116, two sides of the lower roller 230 are rotatably connected with lower roller holes 122, and the lower roller 230 rotates in the lower roller holes 122.

The lower portion of the crusher 190 is fixedly connected with the front portion of the chassis 110, a feeding hole of the crusher 190 is formed in the lower portion of the front side of the conveyor belt 210, an input shaft on the left side of the crusher 190 is sequentially and fixedly connected with a fourth chain wheel 163 and a fifth chain wheel 164, the first chain wheel 160 and the second chain wheel 240 are rotatably connected through a first chain 161, the third chain wheel 241 and the fourth chain wheel 163 are rotatably connected through a second chain 162, and the fifth chain wheel 164 is connected with a traction device through a chain.

The material pushing device 300 comprises a material pushing frame 310, a moving seat 320, a moving rod 330, a left push rod 340, a right push rod 350, a push rod spring 360, a moving rod spring 370, guide rods 380 and a positioning device 400, wherein the front side and the rear side of the material pushing frame 310 are respectively provided with a vertical plate 311, the left side and the right side of the vertical plate 311 are respectively provided with a guide rod hole 312 penetrating through the vertical plates 311 on the two sides, the lower part of each guide rod hole 312 is provided with a material pushing frame push rod hole 313, the lower part of the front side material pushing frame push rod hole 313 is provided with a moving frame hole 314, the middle of the front side vertical plate 311 is provided with a material pushing frame groove 315, the moving seat 320 is internally provided with a moving seat inner cavity 321, the left side and the right side of the moving seat 320 are respectively provided with a pair of coaxial guide rods 323, the lower part of each guide rod 323 is provided with a moving seat push rod hole 324, the lower part of the moving seat 320 is provided with a plurality of moving claws 322, the front part of the guide rod groove 325 on the right side, the front side and rear side of the moving seat 320 are respectively provided with an inclined plane 326, the two guide rods 323 on the left side are respectively connected with the left guide rod hole 312 in a sliding way, the two guide rods 323 on the right side are respectively connected with the two guide rod holes 312 on the right side in a sliding manner, the movable seat 320 slides in the material pushing frame 310, and the lower part of the material pushing frame 310 is fixedly connected with the upper part of the chassis 110.

The rear side of the left push rod 340 is provided with a left push rod stop ring 341, the front side of the left push rod 340 is provided with an upright rod 342, the inner side of the upright rod 342 is provided with a stop shaft 343, the two sides of the left push rod 340 respectively penetrate through the left moving seat push rod hole 324 and the moving seat push rod hole 324, the left push rod 340 slides in the left push rod hole 313 and the moving seat push rod hole 324, the left push rod stop ring 341 is arranged in the moving seat inner cavity 321, the upright rod 342 is arranged in the front side of the moving seat 320, the push rod spring 360 is sleeved outside the left push rod 340, the rear side of the push rod spring 360 abuts against the inner side of the left push rod stop ring 341, the front side of the right push rod 350 is provided with a right push rod stop ring 351, the two sides of the right push rod 350 respectively penetrate through the right moving seat push rod hole 324 and the moving seat push rod hole 324, the right push rod 350 slides in the right moving seat push rod hole 324 and the moving seat push rod hole 324, the right push rod stop ring 351 is arranged in the moving seat inner cavity 321, the push rod spring 360 is sleeved outside the right push rod 350, the front side of the spring 360 abuts against the inner side of the right push rod stop ring 351, and the rear side of the spring 360 abuts against the inner side of the rear side of the moving seat inner cavity 321.

The rear side of the moving rod 330 is provided with a push plate 331, the middle of the moving rod 330 is provided with a stop plate 332, the front part of the moving rod 330 is provided with a moving rod groove 333, the moving rod groove 333 is vertically provided with a moving rod hole 334, the middle of the guide rod 380 is provided with a guide rod groove 382, the lower part of the guide rod 380 is provided with a guide rod hole 381, the moving rod 330 is slidably connected with the moving frame hole 314, the moving rod 330 slides in the moving frame hole 314, the stop plate 332 is arranged at the front side of the moving frame hole 314, the moving rod spring 370 is sleeved outside the moving rod 330, the rear side of the moving rod spring 370 is abutted against the front side of the push plate 331, the front side of the moving rod spring 370 is abutted against the rear side of the moving frame hole 314, the guide rod hole 381 is hinged with the moving rod hole 334, the guide rod 380 is clamped in the moving rod groove 333, the upper side of the guide rod 380 and the front side of the right push rod 350 are in clearance sliding connection, the guide rod groove 380 is in the guide rod groove 325, the guide rod groove 382 is slidably connected with the connecting rod frame pin 119, the guide rod groove 382 slides on the frame pin 119, guide rod 380 is captured within linkage frame slot 118.

The positioning device 400 comprises a positioning sleeve 410, a positioning pin 420 and a positioning pin spring 430, wherein a positioning sleeve hole 411 is formed in the positioning sleeve 410, a positioning pin hole 412 is formed in the lower portion of the positioning sleeve hole 411, a stop shoulder 421 is formed in the upper portion of the positioning pin 420, the stop shoulder 421 is connected with the positioning sleeve hole 411 in a sliding mode, the positioning pin spring 430 is placed in the positioning sleeve hole 411, the upper portion of the positioning sleeve 410 is fixedly connected with the lower portion of the material pushing frame 310, the upper portion of the positioning pin spring 430 abuts against the lower portion of the material pushing frame 310, the lower portion of the positioning pin spring 430 abuts against the upper portion of the stop shoulder 421, and the positioning pin 420 is in clearance and connected with inclined planes 326 on two sides in a sliding mode.

The invention is connected with a motor vehicle and transmits power, each moving part meets the moving requirements of different parts through a chain wheel, when a tractor moves forward, the power is transmitted to an output shaft of a crusher 190 through a fifth chain wheel 164, a fourth chain wheel 163 drives a third chain wheel 241 to rotate through a second chain 162, the third chain wheel 241 drives a lower roller 230 to rotate, the lower roller 230 drives a conveyor belt 210 to rotate, the third chain wheel 241 rotates and drives a second chain wheel 240 to rotate, the second chain wheel 240 rotates and drives a first chain wheel 160 to rotate through a first chain 161, the first chain wheel 160 rotates and drives a vehicle axle 140 to rotate, the vehicle axle 140 drives a root planing claw 130 to rotate, the root planing claw 130 rotates, the claw 131 can go deep into soil, the claw 131 can grasp the root of the straw in the soil along with the continuous rotation of the root planing claw 130, the root of the straw is taken out of the soil by the claw 131, the root of the straw taken out of the soil is overturned from a discharge hole 112, the root digging claw 130 continues to rotate, the left blocking rod 132 will touch the blocking shaft 343, the root digging claw 130 continues to rotate, the blocking rod 132 pushes the blocking shaft 343 to move forwards, the left push rod 340 moves along with the forward movement, the push rod spring 360 sleeved on the left push rod 340 is compressed under the action of the left push rod stop ring 341, at this time, the upper inclined plane 326 of the moving seat 320 is blocked by the positioning pin 420, the elastic force of the push rod spring 360 is transmitted to the positioning pin 420 through the inclined plane 326, the positioning pin 420 is pressed by the positioning pin spring 430, the push rod spring 360 is continuously compressed, the elastic force is gradually increased, when the elastic force of the push rod spring 360 is increased to a certain degree, the positioning pin spring 430 is not enough to press the positioning pin 420, the positioning pin 420 is pushed upwards, the positioning pin 420 slides to the upper part of the moving seat 320 along the inclined plane 326, the blocking is lost, the moving seat 320 slides forwards rapidly under the elastic force of the push rod spring 360, and the moving seat 320 slides forwards, the movable claw 322 passes through the middle of the claw 131 to bring the straws to move forward rapidly, the movable base 320 moves to the front part and is stopped by the front vertical plate 311, the root of the straws is pushed to the upper part of the feed opening 111 by the movable claw 322 and falls to the upper part of the conveyor belt 210 from the feed opening 111, the root of the straws falling to the upper part of the conveyor belt 210 is driven by the baffle plate 211 and is conveyed to the upper part of the conveyor belt 210 and falls to the inlet of the crusher 190, the root of the straws entering the crusher 190 is crushed, the straws are discharged from the outlet at the lower part of the crusher 190 and fall to the field from the slag outlet 114, the root digging claw 130 continues to rotate, the baffle rod 132 at the right side touches the push plate 331 at the moment, the push plate 331 is pushed forward by the baffle rod 132 at the right side, the movable rod 330 slides along the front side of the movable frame hole 314, the movable rod spring 370 is compressed, the movable rod 330 moves forward, the lower part of the guide rod 380 is pushed forward, the guide rod hole 381 rotates around the frame pin 119, the upper part of the guide rod 380 moves backward side, the upper part of the guide rod 380 pushes the right push rod 350 to move towards the rear side, the function and the effect of the right push rod 350 are the same as those of the left push rod 340, along with the rotation of the root digging claw 130, the movable seat 320 is pushed towards the rear side from the front side to reset, after the movable seat 320 resets, the movable rod 330 also resets under the action of the movable rod spring 370, an action cycle is completed, along with the continuous rotation of the root digging claw 130, the next cycle is started, and the root of the straw is continuously dug out, crushed and discharged into the field.

The claws 131 adopt two groups of circular digging to prevent the roots of straws from missing, the claws 131 adopt an arc-shaped tooth-shaped structure, the claws 131 face downwards when entering the ground, the claws 131 face upwards when going out of the ground, the claws 131 form a group, the resistance of the claws 131 to drilling the ground is reduced, the claws 131 can also be beneficial to drilling the insides of the straws, meanwhile, the roots of the straws can be guaranteed to be brought out of the soil and can be sent to the upper part of the chassis 110 along with the rotation of the root digging claws 130, the blocking rods 132 adopt a strip-shaped structure, the blocking rods 132 cut into the soil when rotating, the blocking rods 132 automatically touch the blocking shafts 343 and automatically separate from the blocking shafts 343, the movable claws 322 also adopt a tooth-shaped structure, the movable claws 322 and the claws 131 are arranged in a staggered way, when the movable claws 322 push the roots of the straws, the movable claws 322 pass through gaps in the middle of the claws 131 without interference with the claws 131, the front, the rear, the left and the right guide rods 323 respectively slide in the guide rod holes 312, so that the movable base 320 is stressed in a balanced way, the sliding is stable, the phenomenon of blockage of the moving seat 320 is avoided, the pushing of the root of the straw is influenced, the right push rod 350 and the left push rod 340 respectively slide in the moving seat push rod hole 324 and the material pushing frame push rod hole 313 on the same side, the right push rod 350 and the left push rod 340 are prevented from being deformed due to stress and blocked, the pushing of the moving seat 320 is also ensured, the head of the positioning pin 420 adopts a circular mechanism, the friction force contacting with the inclined plane 326 is reduced, the sliding of the positioning pin 420 is facilitated, the front side of the moving rod 330 is clamped in the connecting rod frame groove 118, the lower side of the guide rod 380 is clamped in the moving rod groove 333, when the moving rod 330 pushes the guide rod 380, the upper part of the guide rod 380 is clamped in the guide rod groove 325, the guide rod 380 can be accurately aligned to the front side of the right push rod 350, the guide rod 380 is prevented from being deformed due to stress, the pushing of the right push rod 350, the material pushing frame 310, the moving seat 320, the moving rod 330, the left push rod 340, the right push rod 350, the push rod spring 360, the push rod 350, the push rod spring 360, The movable rod spring 370 and the guide rod 380 together form a quick-moving mechanism, so that the root of the straw is quickly pushed onto the conveyor belt 210 by the movable claw 322 when the root of the straw is driven to the upper part by the root digging claw 130, and the rotation of the root digging claw 130 is not influenced.

The invention relates to a corn straw returning operation method of a corn straw returning machine, which is characterized in that the corn straw returning operation method is connected with a tractor by a guide vehicle, power is connected to a fifth chain wheel 164 through a chain, the tractor is started, a power device is connected, and the corn straw returning operation method can automatically finish, crush and throw the root of the straw in the soil to the field.