阅读说明：本技术 一种低尘青贮花生联合收获机 (Low-dust silage peanut combine harvester ) 是由 刘道奇 孙千涛 刘龙 钱凯 吴亚滨 孙文喜 崔小伟 胡吉帮 孙洪祥 于 2020-06-29 设计创作，主要内容包括：本发明涉及花生收获机械设备技术领域,具体涉及一种低尘青贮花生联合收获机,包括底盘,底盘后端安装有发动机,底盘前端上方固定有驾驶室,在底盘最前端设有割秧青贮装置,底盘中下部设有挖掘输送装置,底盘中上部设有摘果清选装置,摘果清选装置设有集果箱,在底盘的内后端和内前端竖直固定有第一输送通道和第二输送通道,该收获机设计合理,操作简单,在风机与青贮箱的相互配合下,能够大大降低扬尘的产生,也避免了扬尘对大气环境造成破坏的情况,能够实现从花生的割秧收集、挖掘松土、输送去土、摘果、去尾、清选等一系列功能,并且通过更换摘果齿可以使摘果滚筒对不同的花生品种进行摘果,适用范围广。(The invention relates to the technical field of peanut harvesting mechanical equipment, in particular to a low-dust silage peanut combine harvester which comprises a chassis, wherein an engine is arranged at the rear end of the chassis, a cab is fixed above the front end of the chassis, a seedling cutting silage device is arranged at the foremost end of the chassis, a digging and conveying device is arranged at the middle lower part of the chassis, a fruit picking and cleaning device is arranged at the middle upper part of the chassis, a fruit collecting box is arranged on the fruit picking and cleaning device, a first conveying channel and a second conveying channel are vertically fixed at the inner rear end and the inner front end of the chassis, the harvester is reasonable in design and simple in operation, under the mutual matching of a fan and a silage box, the generation of raised dust can be greatly reduced, the condition that the raised dust damages the atmospheric environment is avoided, a series of functions of peanut cutting collection, soil loosening, conveying soil removal, fruit picking, tail removal, cleaning and the like can be realized, and the fruit picking roller can pick different peanut varieties by replacing picking teeth, the application range is wide.)

1. A low-dust silage peanut combine harvester comprises a chassis, wherein travelling wheels are arranged below the chassis, an engine is arranged at the rear end of the chassis, a shell is fixed outside the engine, a cab is arranged above the front end of the chassis, the low-dust silage peanut combine harvester is characterized by further comprising a seedling cutting silage device, an excavating and conveying device, a peanut picking and cleaning device, a first conveying channel, a second conveying channel and a fan, a transmission belt wheel is arranged on one side of the chassis, a first motor is arranged at the front end of the transmission belt wheel and is in transmission connection with the engine, the first motor is in transmission connection with the transmission belt wheel, the seedling cutting silage device comprises a seedling cutting silage rack, a rolling auger, a seedling cutting rotary cutter, a seedling cutting fixed wheel, a transmission shaft, a feeding channel and a silage box, the seedling cutting silage rack is fixed with the front end of the chassis in parallel, the seedling cutting rotary cutter is arranged in the seedling cutting silage rack, the rolling auger is arranged behind the seedling cutting rotary cutter, one end of the seedling cutting rotary cutter is in transmission, the other end of the seedling cutting rotary cutter is in transmission connection with a transmission shaft, and the transmission shaft is in transmission connection with a transmission belt wheel; the other end of the rolling auger is connected to a feeding channel, the feeding channel is communicated with the silage box, the fan is arranged at the bottom of the feeding channel, the output end of the fan is communicated into the feeding channel in a sealing manner, and the seedling cutting and fixing wheel is fixed at the front end of the seedling cutting silage rack; the excavating and conveying device comprises an excavating and conveying rack, a depth wheel, a vibrating excavating shovel, a gathering auger and a bar-type elevator, wherein the excavating and conveying rack is obliquely fixed at the middle lower part of a chassis, a material conveying port is formed in the rear end of the excavating and conveying rack, the depth wheel is fixed at the front end of the excavating and conveying rack, the vibrating excavating shovel is arranged at the bottom of the front end of the excavating and conveying rack, the bar-type elevator is obliquely and fixedly arranged in the excavating and conveying rack from high to low, the gathering auger is arranged in the rear end of the excavating and conveying rack, a transmission shaft of the bar-type elevator is in transmission connection with a rotating shaft of the gathering auger through a belt wheel, and a transmission shaft of the bar-type elevator is in transmission connection with the transmission belt wheel through a belt; the first conveying channel is vertically and fixedly arranged in the rear end of the chassis, a spike tooth chain conveyor is arranged in the first conveying channel, and a feed inlet of the first conveying channel is butted with the feed delivery port; the fruit picking and cleaning device comprises a fruit picking and cleaning frame, a fruit picking roller shaft, an impurity removing plate, fruit picking spike teeth, a fruit picking roller, a concave plate sieve, a tail picking and cleaning plate, a spiral feeding plate, a circular barb saw blade and a cover plate, wherein the fruit picking and cleaning frame is fixed at the middle upper part of a chassis, a second motor is arranged at the top of the fruit picking and cleaning frame, the fruit picking roller is fixed in the fruit picking and cleaning frame through the transverse rotation of the fruit picking roller shaft, one end of the fruit picking roller shaft is in transmission connection with a first motor through a belt pulley, the other end of the fruit picking roller shaft is in transmission connection with a second motor through a belt pulley, the cover plate is sleeved and fixed above the fruit picking roller, the head end of the cover plate is provided with an impurity removing port which is communicated with a green storage box, the tail end of the cover plate is provided with a feeding port, the feeding port vertically corresponds to a discharge port of a first conveying channel, the axial direction of, the fruit picking spike teeth are uniformly fixed on the spiral feeding plate, the concave plate sieve is arranged below the fruit picking roller and is fixed on the fruit picking and cleaning frame, the tail picking and cleaning plate is obliquely arranged below the concave plate sieve, a plurality of long sieve pores are uniformly arranged in the tail picking and cleaning plate in water level, a plurality of circular barb saw blades are uniformly fixed on the fruit picking and cleaning frame through shaft rods and shaft seats, one end of each shaft rod extends out of the shaft seat, the circular barb saw blades are matched and arranged in the long sieve pores, the circular barb saw blades correspond to each long sieve pore, the top of each saw blade is higher than the long sieve pores, belt wheels are fixed on the shaft rods extending out of the shaft seats, the belt wheels are in transmission connection through belts, and the belt wheel at the end of the shaft rod at the left side of the rear end of the tail picking and cleaning; the fruit collecting box is fixed above the fruit picking and cleaning frame, the second conveying channel is vertically and fixedly arranged in the front end of the chassis, a scraper conveyor is arranged in the second conveying channel, the feed inlet of the second conveying channel is in butt joint with the head end of the tail picking and cleaning plate, and the discharge outlet of the second conveying channel is above the fruit collecting box.

2. The low-dust silage peanut combine harvester as claimed in claim 1, wherein an outer casing plate is fixedly arranged outside the seedling cutting silage frame, a rotating rod of the seedling cutting revolving knife is fixed in the outer casing plate through a bearing, the left end and the right end of the rotating rod extend horizontally out of the outer casing plate, a rotating rod of the rolling auger is fixed in the outer casing plate through a bearing, the left end and the right end of the rotating rod extend horizontally out of the outer casing plate, belt pulleys are fixed on the left end of the rotating rod of the seedling cutting revolving knife and the left end of the rotating rod of the rolling auger, and the left end of the rotating rod of the seedling cutting revolving knife is in transmission connection with the belt pulley on the left end of the rotating rod of the rolling auger through a transmission belt; the transmission shaft is arranged above the seedling cutting ensiling rack, the two end heads of the transmission shaft are fixed in the shell plate through bearings, the right end head of the seedling cutting rotary cutter is in transmission connection with the right end head of the transmission shaft through a belt wheel, the left end head of the transmission shaft is fixed with the belt wheel and is in transmission connection with the transmission belt wheel through a transmission belt, the right end head of the rolling auger is fixed in a feeding channel in a rotating manner, and the feeding channel is provided with a feeding port matched with the rolling auger.

3. The low-dust silage peanut combine harvester as claimed in claim 1, further comprising an adjusting handle, wherein the seedling cutting and fixing wheel frame is retractable, and the adjusting handle is rotatably mounted at the top of the wheel frame.

4. A combined harvester for low dust ensiled peanut as claimed in claim 1, wherein the rear end of the digging conveyor frame is hinged to the chassis by a hinged mounting.

5. The combined harvester of claim 4, further comprising a hydraulic rod disposed between the chassis and the excavating and conveying frame, wherein a cross rod is fixedly mounted on the excavating and conveying frame, the top end of the hydraulic rod is fixed on the chassis, and the output end of the hydraulic rod is fixed on the cross rod.

6. The combine harvester of claim 1, wherein the gathering auger is symmetrical, and the left side of the gathering auger is opposite to the auger on the right side.

7. A low dust silage peanut combine harvester according to claim 1, characterized in that there is a diaphragm fixed in the picking and cleaning frame, and the shaft lever on the right side of the picking and cleaning plate rear end extends out of the shaft seat and is fixed with a belt pulley, and further comprises an eccentric driving mechanism, the eccentric driving mechanism comprises a long hinge rod, a short hinge rod, a connecting shaft and a belt pulley, the connecting shaft is fixed at the picking and cleaning frame rear end, the right end of the connecting shaft is fixed with a belt pulley, the belt pulley at the right end of the connecting shaft is connected with the belt pulley on the right side of the picking and cleaning plate rear end in a transmission manner, the tail end of the long hinge rod is hinged with the connecting shaft, the head end is hinged on the picking and cleaning plate outer side face, the tail end of the short hinge rod is hinged with the head end.

8. The combine harvester of claim 7, further comprising a hinged fixed column, wherein the bottom end of the hinged fixed column is fixed on the peanut picking and cleaning frame, and one side of the top end of the hinged fixed column is hinged to the outer side surface of the tail picking and cleaning plate.

9. The combine harvester of claim 1, wherein the length of the long sieve in the peanut picking and cleaning plate is greater than the diameter of the circular barbed saw blade, and a trash removal opening is formed between the circular barbed saw blade and the long sieve, and through holes of the shaft lever of the circular barbed saw blade are formed in both sides of the peanut picking and cleaning plate, and the diameter of the through holes is greater than the diameter of the shaft lever of the circular barbed saw blade.

10. The combine harvester of claim 1, wherein the silage box is provided with an open-close sieve plate at the outer side, and the open-close sieve plate is fastened and fixed with the silage box through a lock catch.

The technical field is as follows:

the invention relates to the technical field of peanut harvesting mechanical equipment, in particular to a low-dust silage peanut combine harvester.

Background art:

peanuts are taken as one of three main crops in China, are not only main oil crops and economic crops in China, but also high-quality and superior oil crops with international competitiveness in China, but the peanut harvesting is taken as the last link of peanut production, the labor amount accounts for more than 60% of the whole production process, the peanut harvesting time is short, the quality and the yield of the peanuts can be affected after the peanuts are harvested too early and too late, so that the optimal harvesting time is especially critical, at present, the domestic peanut harvesting mainly adopts manpower and small-sized agricultural machinery as main parts to carry out segmented harvesting, namely, the peanuts are integrally excavated after being mature, then the peanuts are aired, picked, subjected to fruit picking and tail removing screening and other processes, dust, noise and environmental pollution are easily generated during harvesting, the harvesting efficiency is low, and along with the rapid increase of regional planting area in China and the large-scale production development of the traditional production area, the demand for high-efficiency mechanized peanut harvesting technical equipment in China is urgent, the original manual peanut harvesting mode in the field is gradually replaced by mechanized harvesting, particularly peanut combined harvesting equipment is the most prominent, but the existing peanut combined harvesting equipment still has dust emission although the harvesting is efficient and high in quality, so that the health of farmers is affected, a large amount of raised dust with complex components is blown into the air, the atmospheric environment is damaged, the harvesting efficiency is low, and the peanut harvesting machine which is single, low in efficiency and easy to cause environmental pollution cannot meet the current peanut harvesting situation.

In conclusion, the method has the advantages of strong applicability, high reliability, wide operation range, time tolerance, especially the functions of ensiling, dust fall, low loss and the like, improves the comprehensive utilization rate and ecological benefits of the peanuts, is convenient for realizing large-scale production, whole-process mechanized harvesting and large-area popularization and application, and improves the peanut harvesting efficiency so as to become the problem which needs to be solved urgently at the present stage.

The invention content is as follows:

the invention provides a low-dust silage peanut combine harvester which is efficient, can reduce the generation of raised dust, can be suitable for different peanut varieties and different peanut planting modes, is scientific and reasonable in arrangement, strong in universality and high in operation efficiency, and can realize a series of functions of cutting seedlings, collecting, digging and loosening soil, conveying and removing soil, picking fruits, removing tails, cleaning and the like from peanuts during working.

The technical scheme adopted by the invention for solving the technical problems is as follows: a low-dust silage peanut combine harvester comprises a chassis, wherein travelling wheels are arranged below the chassis, an engine is arranged at the rear end of the chassis, a shell is fixed outside the engine, a cab is arranged above the front end of the chassis, the low-dust silage peanut combine harvester further comprises a seedling cutting silage device, an excavating and conveying device, a picking and cleaning device, a first conveying channel, a second conveying channel and a fan, a transmission belt wheel is arranged on one side of the chassis, a first motor is arranged at the front end of the transmission belt wheel and is in transmission connection with the engine, the first motor is in transmission connection with the transmission belt wheel, the seedling cutting silage device comprises a seedling cutting silage rack, a rolling auger, a seedling cutting rotary cutter, a seedling cutting fixed wheel, a transmission shaft, a feeding channel and a silage box, the seedling cutting silage rack is fixed with the front end of the chassis in parallel, the seedling cutting silage rotary cutter is arranged in the seedling cutting silage rack, the rolling auger is arranged behind the seedling cutting rotary cutter, one end of the seedling cutting rotary cutter is in, the other end of the seedling cutting rotary cutter is in transmission connection with a transmission shaft, and the transmission shaft is in transmission connection with a transmission belt wheel; the other end of the rolling auger is connected to a feeding channel, the feeding channel is communicated with the silage box, the fan is arranged at the bottom of the feeding channel, the output end of the fan is communicated into the feeding channel in a sealing manner, and the seedling cutting and fixing wheel is fixed at the front end of the seedling cutting silage rack; the excavating and conveying device comprises an excavating and conveying rack, a depth wheel, a vibrating excavating shovel, a gathering auger and a bar-type elevator, wherein the excavating and conveying rack is obliquely fixed at the middle lower part of a chassis, a material conveying port is formed in the rear end of the excavating and conveying rack, the depth wheel is fixed at the front end of the excavating and conveying rack, the vibrating excavating shovel is arranged at the bottom of the front end of the excavating and conveying rack, the bar-type elevator is obliquely and fixedly arranged in the excavating and conveying rack from high to low, the gathering auger is arranged in the rear end of the excavating and conveying rack, a transmission shaft of the bar-type elevator is in transmission connection with a rotating shaft of the gathering auger through a belt wheel, and a transmission shaft of the bar-type elevator is in transmission connection with the transmission belt wheel through a belt; the first conveying channel is vertically and fixedly arranged in the rear end of the chassis, a spike tooth chain conveyor is arranged in the first conveying channel, and a feed inlet of the first conveying channel is butted with the feed delivery port; the fruit picking and cleaning device comprises a fruit picking and cleaning frame, a fruit picking roller shaft, an impurity removing plate, fruit picking spike teeth, a fruit picking roller, a concave plate sieve, a tail picking and cleaning plate, a spiral feeding plate, a circular barb saw blade and a cover plate, wherein the fruit picking and cleaning frame is fixed at the middle upper part of a chassis, a second motor is arranged at the top of the fruit picking and cleaning frame, the fruit picking roller is fixed in the fruit picking and cleaning frame through the transverse rotation of the fruit picking roller shaft, one end of the fruit picking roller shaft is in transmission connection with a first motor through a belt pulley, the other end of the fruit picking roller shaft is in transmission connection with a second motor through a belt pulley, the cover plate is sleeved and fixed above the fruit picking roller, the head end of the cover plate is provided with an impurity removing port which is communicated with a green storage box, the tail end of the cover plate is provided with a feeding port, the feeding port vertically corresponds to a discharge port of a first conveying channel, the axial direction of, the fruit picking spike teeth are uniformly fixed on the spiral feeding plate, the concave plate sieve is arranged below the fruit picking roller and is fixed on the fruit picking and cleaning frame, the tail picking and cleaning plate is obliquely arranged below the concave plate sieve, a plurality of long sieve pores are uniformly arranged in the tail picking and cleaning plate in water level, a plurality of circular barb saw blades are uniformly fixed on the fruit picking and cleaning frame through shaft rods and shaft seats, one end of each shaft rod extends out of the shaft seat, the circular barb saw blades are matched and arranged in the long sieve pores, the circular barb saw blades correspond to each long sieve pore, the top of each saw blade is higher than the long sieve pores, belt wheels are fixed on the shaft rods extending out of the shaft seats, the belt wheels are in transmission connection through belts, and the belt wheel at the end of the shaft rod at the left side of the rear end of the tail picking and cleaning; the fruit collecting box is fixed above the fruit picking and cleaning frame, the second conveying channel is vertically and fixedly arranged in the front end of the chassis, a scraper conveyor is arranged in the second conveying channel, the feed inlet of the second conveying channel is in butt joint with the head end of the tail picking and cleaning plate, and the discharge outlet of the second conveying channel is above the fruit collecting box.

Further, an outer shell plate is fixedly arranged on the outer side of the seedling cutting ensiling rack, a rotating rod of the seedling cutting rotating cutter is fixed in the outer shell plate through a bearing, the left end and the right end of the rotating rod extend out of the outer shell plate horizontally, a rotating rod of the rolling packing auger is fixed in the outer shell plate through a bearing, the left end and the right end of the rotating rod extend out of the outer shell plate horizontally, belt pulleys are fixed on the left end of the rotating rod of the seedling cutting rotating cutter and the left end of the rotating rod of the rolling packing auger, and the left end of the rotating rod of the seedling cutting rotating cutter is in transmission connection with the belt pulley on the left end of the rotating rod of the rolling; the transmission shaft is arranged above the seedling cutting ensiling rack, the two end heads of the transmission shaft are fixed in the shell plate through bearings, the right end head of the seedling cutting rotary cutter is in transmission connection with the right end head of the transmission shaft through a belt wheel, the left end head of the transmission shaft is fixed with the belt wheel and is in transmission connection with the transmission belt wheel through a transmission belt, the right end head of the rolling auger is fixed in a feeding channel in a rotating manner, and the feeding channel is provided with a feeding port matched with the rolling auger.

Furthermore, the seedling cutting and fixing wheel frame is telescopic, and the adjusting handle is rotatably arranged at the top of the wheel frame.

Furthermore, the rear end of the excavating and conveying rack is hinged with the chassis through a hinged fixed seat.

The hydraulic excavator further comprises a hydraulic rod, the hydraulic rod is arranged between the chassis and the excavating and conveying rack, a cross rod is fixedly mounted on the excavating and conveying rack, the top end of the hydraulic rod is fixed on the chassis, and the output end of the hydraulic rod is fixed on the cross rod.

Furthermore, the packing auger is of a symmetrical type, and the left side of the packing auger is opposite to the packing auger on the right side.

Further, pluck the fruit and clean the frame internal fixation and have the diaphragm, just pluck the axostylus axostyle on tail cleaning plant rear end right side and extend the axle bed and be fixed with the band pulley, still include eccentric actuating mechanism, eccentric actuating mechanism includes long hinge joint pole, short hinge joint pole, connecting axle and band pulley, the connecting axle is fixed at pluck fruit and clean frame rear end, and the right-hand member of connecting axle is fixed with the band pulley, and the band pulley of connecting axle right-hand member is connected with the band pulley transmission of plucking tail cleaning plant rear end right side, long hinge joint pole tail end is articulated with the connecting axle, and the head end articulates and plucks tail cleaning plant lateral surface, short hinge joint pole tail end articulates with long hinge joint pole head end.

Furthermore, the fruit picking and cleaning machine further comprises an articulated fixing column, the bottom end of the articulated fixing column is fixed on the fruit picking and cleaning frame, and one side of the top end of the articulated fixing column is articulated on the outer side surface of the tail picking and cleaning plate.

Further, pluck the diameter that long sieve mesh length in the fruit cleaning plate is greater than circular barb saw bit, and constitute between circular barb saw bit and the long sieve mesh and remove miscellaneous mouthful, pluck fruit cleaning plate both sides and open the through-hole that has circular barb saw bit axostylus axostyle, and the aperture of through-hole is greater than the diameter of circular barb saw bit axostylus axostyle.

Furthermore, the outer side of the silage box is provided with an opening and closing screen plate, and the opening and closing screen plate is buckled and fixed with the silage box through a lock catch.

The invention has the beneficial effects that: the present invention has four beneficial effects.

First, reasonable in design, easy operation, under the mutually supporting of fan and silage case, the production that can greatly reduced raise dust, can not cause the injury to peasant's healthy, the condition of the raise dust damage to atmospheric environment has also been avoided, and this harvester commonality is strong, the operating efficiency is high, the during operation can realize collecting from the seedling that cuts of peanut, excavate and loosen the soil, carry and remove soil, pluck the fruit, remove the tail, a series of functions such as cleaning, pluck the fruit through changing and pluck the fruit tooth and can make and pluck the fruit cylinder and pluck the fruit to different peanut varieties, application scope is wide, be applicable to the collection of plucking the fruit of different peanut varieties.

Secondly, the seedling cutting rotary cutter in the seedling cutting silage device can cut and smash peanut seedling vines, the cut and smashed peanut seedling vines are conveyed into the feeding channel under the action of the rolling auger, the fan at the bottom of the feeding channel can convey the peanut seedling vines in the feeding channel into the silage box, the peanut seedling vines are smashed through the seedling cutting rotary cutter, the peanut seedling vines are prevented from being blocked in the feeding channel, the occupied area of the peanut seedling vines in the silage box is reduced, the silage box is provided with the opening and closing screen plate, when the silage box is full, the opening and closing screen plate can be opened to timely clean the peanut seedling vines in the silage box, and the seedling cutting rotary cutter is convenient to use.

Thirdly, under the lifting action of the hydraulic rod, the vibrating digging shovel in the digging and conveying device can be adjusted up and down according to the different depths of the peanuts, part of impurities can be shaken off by the vibrating digging shovel when the seedlings are dug, so that the best digging effect is achieved, and the rod type elevator can also clean the impurities dug out of the peanuts, so that the digging and conveying device has the effects of compact structure and low pod loss rate.

Fourthly, under the mutual cooperation of the long hinge connecting rod, the short hinge connecting rod and the hinge fixing column, the tail picking cleaning plate can swing back and forth, and the tail picking efficiency of the peanut pods is greatly improved through the back and forth swing of the tail picking cleaning plate.

Description of the drawings:

FIG. 1 is a schematic view of the present invention.

FIG. 2 is a second schematic view of the present invention.

FIG. 3 is a third schematic view of the present invention.

FIG. 4 is a fourth schematic view of the present invention.

FIG. 5 is a schematic view of the structure of the seedling cutting and ensiling device.

Fig. 6 is a schematic structural view of the excavating and conveying device.

FIG. 7 is a second schematic view of the excavating and conveying device

FIG. 8 is a schematic view of a fruit picking and selecting device.

FIG. 9 is a second schematic view of the fruit picking and cleaning device.

FIG. 10 is a third schematic view of a fruit picking and cleaning device.

In the figure: 1-chassis, 2-seedling cutting and ensiling device, 201-seedling cutting and ensiling rack, 202-rolling auger, 203-seedling cutting rotary cutter, 204-seedling cutting and fixing wheel, 205-adjusting handle, 206-feeding channel, 207-transmission shaft, 208-seedling cutting and fixing wheel carrier, 3-digging and conveying device, 301-digging and conveying rack, 302-bar type elevator, 303-cross bar, 304-vibrating digging shovel, 305-depth limiting wheel carrier, 306-depth limiting wheel, 307-shaft seat, 308-first belt wheel, 309-hinged fixed seat, 310-conveying port, 311-collecting auger, 312-second belt wheel, 4-fruit picking and cleaning device, 401-fruit picking and cleaning rack, 402-fruit picking roller shaft, 403-row sundry board, 404-fruit picking spike tooth, 405-a fruit picking roller, 406-a concave plate sieve, 407-a tail picking cleaning plate, 408-a long sieve mesh, 409-a circular barbed saw blade, 410-a third belt wheel, 411-a transverse plate, 412-a long hinged connecting rod, 413-a connecting shaft, 414-a spiral feeding plate, 415-a fourth belt wheel, 416-a short hinged rod, 5-a cab, 6-an oil tank, 7-an engine shell, 8-an engine, 9-a first conveying channel, 10-a fruit collecting box, 11-a second conveying channel, 12-a driving belt wheel, 13-a first motor, 14-a second motor, 15-a fan, 16-a silage box, 17-an opening and closing sieve mesh plate, 18-a hinged fixed column, 19-an arc cover plate, 20-a feeding port and 21-a trash discharging port, 22-shell plate, 23-hydraulic rod.

The specific implementation mode is as follows:

the invention is further illustrated with reference to the following figures and examples.