CN210746065U

CN210746065U - Straw collection device and crop harvester

Info

Publication number: CN210746065U
Application number: CN201920545055.9U
Authority: CN
Inventors: 张涵
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-19
Filing date: 2019-04-19
Publication date: 2020-06-16
Anticipated expiration: 2029-04-19

Abstract

Discloses a straw collecting device and a crop harvester. Straw collection device includes: the outer box body comprises a cover body, an outer vertical wall and an outer bottom wall, and an air outlet is formed in the outer bottom wall; the inner box body is accommodated in the outer box body, a straw inlet communicated with the outside is formed in the inner box body, and at least one through hole is formed in at least one part of the inner vertical wall of the inner box body; the upper baffle plate is arranged in the outer box body, and a first gas collecting chamber is arranged between the upper baffle plate and the inner bottom wall of the inner box body so as to collect unpurified gas flowing out of the through hole of the inner box body; the lower partition plate is arranged at the lower part of the upper partition plate, and a second gas collecting chamber is formed between the lower partition plate and the outer bottom wall of the outer box body; and the air purification devices are arranged between the upper partition plate and the lower partition plate, the air inlet of each air purification device is communicated with the first air collection chamber, and the air outlet of each air purification device is communicated with the second air collection chamber. Through install air purification device in the box that holds the straw for the air that is discharged from the box obtains purifying, has reduced the pollution to ambient air.

Description

Straw collection device and crop harvester

Technical Field

The embodiment of the utility model relates to a crop harvester, more specifically say, relate to a straw collection device and including this kind of straw collection device's crop harvester suitable for collect crop straw.

Background

Work machines such as crop harvesters typically include a harvesting device for harvesting mature crop from the ground, a separating device for separating the fruit and straw of the crop, a fruit collecting device for collecting the fruit, and a straw collecting device for collecting the straw. Work machines such as peanut harvesters typically include a harvesting device for integrally harvesting mature peanut crops from the ground, a separating device for separating peanuts and stalks (or peanut vine) of the peanut crops, a crop conveying device for conveying the peanut crops, a fruit conveying device for conveying the separated peanuts, a straw conveying device for conveying the separated straws, a fruit collecting device for collecting the peanuts, a straw collecting device for collecting the straws, and the like.

In the existing peanut harvester, the straw (or peanut vine) after seedling and fruit separation is conveyed to a straw collecting device by a straw conveying device such as a chain and/or a main centrifugal fan. When the centrifugal fan for the peanut harvester sucks up straws and dust and conveys the straws and the grass collecting device, the air flow containing dust is directly discharged into the air from the air outlet on the straw collecting device because the main centrifugal fan has large conveying air quantity and does not have a corresponding air purifying and dedusting device, and sometimes the discharged dust can reach the height of dozens of meters, thus seriously polluting the air.

SUMMERY OF THE UTILITY MODEL

The utility model provides a straw collection device and including this kind of straw collection device's crops harvester can realize purifying the straw of collecting, reduces the pollution to ambient air.

According to an aspect of the present invention, there is provided a straw collecting device, including: the outer box body comprises a cover body, an outer vertical wall and an outer bottom wall, and an air outlet is formed in the outer bottom wall; the inner box body is accommodated in the outer box body, a straw inlet communicated with the outside is formed in the inner box body, and at least one through hole is formed in at least one part of the inner vertical wall of the inner box body; the upper partition plate is arranged in the outer box body, and a first gas collecting chamber is arranged between the upper partition plate and the inner bottom wall of the inner box body so as to collect unpurified gas flowing out of the through hole of the inner box body; the lower partition plate is arranged at the lower part of the upper partition plate, and a second air collecting chamber is formed between the lower partition plate and the outer bottom wall of the outer box body; and the air purification devices are arranged between the upper partition plate and the lower partition plate, the air inlet of each air purification device is communicated with the first air collection chamber, and the air outlet of each air purification device is communicated with the second air collection chamber.

According to an embodiment of the present invention, a dust collection chamber is formed between the upper partition plate and the lower partition plate, each of the air cleaning devices is provided with a dust outlet communicating with the dust collection chamber to collect separated dust in the dust collection chamber.

According to the utility model discloses an embodiment, every air purification device includes: the outer side of the upper cylinder body is fixed on the upper partition plate; a plurality of helical blades arranged inside the upper cylinder, wherein unpurified gas from the first gas collection chamber passes through the helical blades through the gas inlet so as to realize the separation of dust and air; and a lower cylinder inserted at an upper portion thereof into a lower portion of the upper cylinder and forming the dust outlet between an inner wall of the upper cylinder and an outer wall of the lower cylinder, a lower end outer side of the lower cylinder being fixed to the lower partition plate such that purified air flows into the second air collection chamber through the lower cylinder.

According to the utility model discloses an embodiment be equipped with a plurality of support columns between last baffle and the lower baffle.

According to an embodiment of the present invention, the outer profile of the outer box and the outer profile of the inner box both have a substantially rectangular parallelepiped shape, the inner box being provided with at least one inner standing wall of the through hole and the corresponding outer standing wall of the outer box between which the air duct communicating with the first air collection chamber is formed.

According to the utility model discloses an embodiment, be equipped with the vent on the lid, be equipped with the filter screen on the vent.

According to the utility model discloses an embodiment, the air outlet department of outer diapire is equipped with the draught fan.

According to the utility model discloses an embodiment, straw collection device still includes a drive arrangement, is constructed into the drive outer box inclines left or right to empty and hold the straw in the inner box.

According to the utility model discloses an embodiment, be equipped with on the outer upright wall on the left side of outer box or right side with the dust discharge port of room intercommunication is collected to the dust, be equipped with the ash discharge door on the dust discharge port.

According to an embodiment of the present invention, the straw collecting device further comprises a second driving device configured to open or close the ash discharge door.

According to an embodiment of the invention, the second driving device opens the ash discharge door in response to the inclined state of the outer case and closes the ash discharge door in response to the upright state of the outer case.

According to an embodiment of the invention, the first driving means comprises a pneumatic cylinder.

According to the utility model discloses an embodiment, straw collection device is still including sheltering from the curtain cloth, the first end that shelters from the curtain cloth is connected on the chassis of vehicle, and the second end is connected arrange the lower part of ash door.

According to the utility model discloses an embodiment, straw collection device still includes the roll up curtain device, installs the chassis of vehicle perhaps the lower part of the ash discharge door of outer box, the first end or the second end that shelter from the curtain cloth are connected to roll up the curtain device.

According to the utility model discloses an embodiment, roll up curtain device includes: the first end of the shielding curtain cloth is connected to the rotating shaft; the pair of supporting frames are arranged at the lower part of the ash discharge door of the chassis or the outer box body of the vehicle, and two ends of the rotating shaft are rotatably arranged on the supporting frames; and the pair of coil springs are arranged at two ends of the rotating shaft, and the shielding curtain cloth resists the elasticity of the coil springs and is unwound from the rotating shaft.

According to an embodiment of the utility model, the straw collecting device further comprises a pair of first supporting frames, the lower ends of the first supporting frames are respectively fixed on the underframe of the vehicle, and the upper ends of the first supporting frames are respectively hinged on the outer vertical wall at the front side and the outer vertical wall at the rear side of the outer box body; the first driving device comprises a pair of hydraulic cylinders, the end parts of cylinder bodies of the hydraulic cylinders are respectively hinged on the underframe, the free ends of piston rods telescopically installed in the cylinder bodies are respectively hinged on the outer vertical wall on the front side and the outer vertical wall on the rear side of the outer box body, and the piston rods drive the outer box body to rotate relative to the first supporting frame during the piston rods extend out of the cylinder bodies.

According to an embodiment of the utility model, the straw collecting device still includes a pair of holding frame, holding frame fixes aslope between first support frame and the chassis, the tip of the cylinder body of pneumatic cylinder articulates respectively on the holder frame.

According to an embodiment of the present invention, the straw collecting device further comprises a pair of second supporting frames, the second supporting frames are configured to drive the cover to open or close during the rotation of the outer case relative to the first supporting frames driven by the first driving device.

According to the utility model discloses an embodiment, every the second support frame includes: a first drive rod, a first end of the first drive rod being hinged to the first support frame; and a second driving rod, wherein the upper end of the second driving rod is fixed to the cover body, and the lower end of the second driving rod is hinged to the second end of the first driving rod, so that the first driving rod drives the cover body to rotate relative to the outer box body through the second driving rod during the period that the first driving device drives the outer box body to rotate relative to the first supporting frame.

According to an embodiment of the invention, the first drive lever comprises: the first end of the first sub-driving rod is hinged to the first support frame; and the second end of the first sub driving rod is hinged to the first end of the second sub driving rod, and the second end of the second sub driving rod is hinged to the lower end of the second driving rod.

According to an embodiment of another aspect of the present invention, there is provided a crop harvester, including: a work vehicle; a harvesting device installed at a front end of the work vehicle and configured to harvest crops; a separating device mounted on the work vehicle and configured to separate fruits and stalks of the crops; a straw conveying device configured to convey separated straw; and the straw collecting device is arranged on the underframe of the vehicle at the rear part.

According to the utility model discloses an embodiment, straw conveyor includes: one end of the conveying pipe is communicated with the separating device to receive the separated straws, and the other end of the conveying pipe is connected to the straw inlet of the inner box body; and a main centrifuge installed in the conveying pipe.

According to the utility model discloses straw collection device and crops harvester through installing air purification device in the box that holds the straw for follow box exhaust air and purified, reduced the pollution to ambient air.

Drawings

The invention will be explained in further detail with reference to the drawings, in which:

fig. 1 is a schematic view of a crop harvester according to an exemplary embodiment of the present invention;

FIG. 2 is a schematic perspective view of a straw collection device according to an exemplary embodiment of the present invention;

FIG. 3 is another perspective view of the straw collection device shown in FIG. 2;

FIG. 4 is a perspective view of the straw collection device of FIG. 2 in an inclined state when straw is dumped;

FIG. 5 is a side view of the straw collection device shown in FIG. 4;

FIG. 6 is a rear view of the straw collection device shown in FIG. 2;

FIG. 7 is a front view of the straw collection device shown in FIG. 2;

FIG. 8 is a front view of a straw collection device according to another exemplary embodiment of the present invention;

FIG. 9 is a left side view of the straw collection device shown in FIG. 2;

FIG. 10 is a cross-sectional view of the straw collection device of FIG. 2, taken along the direction of travel;

FIG. 11 is a cross-sectional view of the straw collection device shown in FIG. 2, between an upper baffle plate and a lower baffle plate;

fig. 12 is a schematic cross-sectional view of an air purification apparatus according to an exemplary embodiment of the present invention;

FIG. 13 is a top view looking down from the first plenum;

FIG. 14 is a bottom view looking up from the second plenum;

fig. 15 is a schematic view of a roller shade device according to an exemplary embodiment of the present invention; and

fig. 16 is a radial sectional view of a rotating shaft of the winding device shown in fig. 15.

Detailed Description

While the present invention will be fully described with reference to the accompanying drawings, which contain preferred embodiments of the invention, it is to be understood that those skilled in the art can, prior to this description, modify the embodiments described herein while obtaining the technical effects of the invention. Therefore, it should be understood that the foregoing description is a broad disclosure directed to persons of ordinary skill in the art, and is not intended to limit the exemplary embodiments of the invention described herein.

Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments disclosed herein. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing.

According to the utility model discloses a general utility model conceives, provides a straw collection device, include: the outer box body comprises a cover body, an outer vertical wall and an outer bottom wall, and an air outlet is formed in the outer bottom wall; the inner box body is accommodated in the outer box body, a straw inlet communicated with the outside is formed in the inner box body, and at least one through hole is formed in at least one part of the inner vertical wall of the inner box body; the upper partition plate is arranged in the outer box body, and a first gas collecting chamber is arranged between the upper partition plate and the inner bottom wall of the inner box body so as to collect unpurified gas flowing out of the through hole of the inner box body; the lower partition plate is arranged at the lower part of the upper partition plate, and a second air collecting chamber is formed between the lower partition plate and the outer bottom wall of the outer box body; and a plurality of air purification devices installed between the upper partition plate and the lower partition plate, wherein an air inlet of each air purification device is communicated with the first air collection chamber, an air outlet of each air purification device is communicated with the second air collection chamber to form a straw collection device, and the straw collection device comprises: the outer box body comprises a cover body, an outer vertical wall and an outer bottom wall, and an air outlet is formed in the outer bottom wall; the inner box body is accommodated in the outer box body, a straw inlet communicated with the outside is formed in the inner box body, and at least one through hole is formed in at least one part of the inner vertical wall of the inner box body; the upper partition plate is arranged in the outer box body, and a first gas collecting chamber is arranged between the upper partition plate and the inner bottom wall of the inner box body so as to collect unpurified gas flowing out of the through hole of the inner box body; the lower partition plate is arranged at the lower part of the upper partition plate, and a second air collecting chamber is formed between the lower partition plate and the outer bottom wall of the outer box body; and the air purification devices are arranged between the upper partition plate and the lower partition plate, the air inlet of each air purification device is communicated with the first air collection chamber, and the air outlet of each air purification device is communicated with the second air collection chamber.

Fig. 1 is a schematic view of a crop harvester according to an exemplary embodiment of the present invention.

As shown in fig. 1, a crop harvester 1000 for harvesting crops such as peanuts, potatoes, sweet potatoes and the like according to an exemplary embodiment of the present invention. The following describes embodiments of the present invention with crops as peanuts. The crop harvester 1000 includes: a work vehicle 200 including a base frame 102 and wheels 101 mounted on a lower portion of the base frame 102; a harvesting device 300 mounted at a front end of the work vehicle 200 and configured to harvest crops such as peanuts; a separating device 400 mounted on the work vehicle 200 and configured to separate fruits (e.g., peanuts) and straws of crops; a straw conveyor 103 configured to convey separated straw (e.g., peanut vine); and a straw collecting apparatus 100 mounted on a rear undercarriage 102 of the vehicle 200. The separated peanut seedlings are conveyed to the straw collecting device 100 by the straw conveying device 103 and temporarily stored in the straw collecting device.

FIG. 2 is a schematic perspective view of a straw collection device according to an exemplary embodiment of the present invention; FIG. 3 is another perspective view of the straw collection device shown in FIG. 2; FIG. 4 is a perspective view of the straw collection device of FIG. 2 in an inclined state when straw is dumped; FIG. 5 is a side view of the straw collection device shown in FIG. 4; FIG. 6 is a rear view of the straw collection device shown in FIG. 2; FIG. 7 is a front view of the straw collection device shown in FIG. 2; FIG. 8 is a front view of a straw collection device according to another exemplary embodiment of the present invention; FIG. 9 is a left side view of the straw collection device shown in FIG. 2; FIG. 10 is a cross-sectional view of the straw collection device shown in FIG. 2, taken along the direction of travel.

Referring to fig. 1-10, according to an embodiment of the present invention, a straw collection device 100 comprises: the air purifier comprises an outer box body 1, an inner box body 2, an upper partition plate 3, a lower partition plate 4 and a plurality of air purifying devices 5. The outer case 1 includes a cover 11 mounted on an upper portion, an outer standing wall 12, and an outer bottom wall 13, and defines an accommodating space within the outer case 1. An air outlet 14 is arranged on the outer bottom wall 13. The inner box body 2 is accommodated inside the outer box body 1, a straw inlet 112 communicated with the outside is arranged at the upper part of the inner box body 2, and straws to be stored, such as peanut seedlings, enter the inner box body 2 from the straw inlet. At least one through hole 22 is arranged on at least one part of the inner vertical wall 21 of the inner box body 2. The upper baffle 3 is installed in the outer box 1, and a first gas collection chamber 15 is arranged between the upper baffle 3 and the inner bottom wall 23 of the inner box 2 to collect unpurified gas flowing out of the through hole 22 of the inner box 2. The lower partition plate 4 is installed at the lower part of the upper partition plate 4, and a second gas collection chamber 16 is formed between the lower partition plate 4 and the outer bottom wall 13 of the outer box 1. A plurality of air cleaning devices 5 are installed between the upper partition plate 3 and the lower partition plate 4, an air inlet 51 of each air cleaning device is communicated with the first air collection chamber 15, and an air outlet 52 of each air cleaning device 5 is communicated with the second air collection chamber 16. Thus, the second plenum 16 receives the purified air from the air purifying device and discharges the purified air to the atmosphere through the air outlet 14 provided in the outer case 1.

In one embodiment, the straw conveying apparatus 103 comprises: a transfer pipe 105 and a main centrifuge 103. One end of the conveying pipe 105 is communicated with the separating device 400 to receive the separated straws (such as peanut seedlings), and the other end of the conveying pipe is connected to the straw inlet of the inner box body; a main centrifuge 103 is mounted in the transfer pipe 105. In this way, the separated straw (for example, peanut vine) is conveyed into the inner box 2 through the conveying pipe 105 by the suction action of the main centrifuge 103, and the air in the inner box 2 carrying some impurities such as dust and debris flows into the first air collection chamber 15 through the through holes 22 on the inner vertical wall 21 due to the impurities carried by the peanut vine. The air carrying impurities in the first air collection chamber 15 enters the air purification device 5, the air carrying impurities in the air purification device 5 is separated into purified air and dust, and the purified air is discharged to the atmosphere through the air outlet 14, so that the pollution to the ambient air is reduced. In addition, a plurality of air purification devices are installed in the lower part of the outer box body, the length of the vehicle is not prolonged, the installation space is saved, and a large amount of manufacturing cost is saved.

FIG. 11 is a cross-sectional view of the straw collection device shown in FIG. 2, between an upper baffle plate and a lower baffle plate; fig. 12 is a schematic cross-sectional view of an air purification apparatus according to an exemplary embodiment of the present invention; FIG. 13 is a top view looking down from the first plenum; FIG. 14 is a bottom view looking up from the second plenum.

Referring to fig. 10 to 14, in one embodiment, a dust collecting chamber 17 is formed between the upper partition plate 3 and the lower partition plate 4, and each of the air cleaning devices 5 is provided with a dust outlet 57 communicating with the dust collecting chamber 17 to collect separated dust in the dust collecting chamber 17.

In one embodiment, each of the air cleaning devices 5 may be a straight-flow type cyclone dust collector, and includes an upper cylinder 53, a plurality of spiral blades 55, and a lower cylinder 56. The outer side of the upper cylinder 53 is fixed to the upper partition 3. A plurality of helical blades 55 are arranged inside the upper cylinder 53, unpurified gas from the first gas collection chamber 15 passes through the helical blades 55 through the gas inlet, and dust in the gas is guided by the helical blades 55 to impact on the inner wall of the upper cylinder 53 and fall down so as to realize the separation of the dust and the air. The upper portion of the lower cylinder 56 is inserted into the lower portion of the upper cylinder 53, and the dust outlet 57 is formed between the inner wall of the upper cylinder 53 and the outer wall of the lower cylinder 56, and the lower end outer side of the lower cylinder 56 is fixed to the lower partition 4, so that the cleaned air flows into the second plenum 16 through the lower cylinder 56. In one embodiment, each helical blade 55 is spiraled at an angle of inclination of 40-50 degrees (preferably 45 degrees) and connected between the central shaft 54 and the inner wall of the upper barrel 53 to increase the stability of the helical blade. The height of each helical blade 55 spiraling within the upper cylinder is in the range of 35-45 mm (preferably 40 mm). The dust falling in the upper cylinder 53 due to the impact by the inner wall of the upper cylinder falls into the dust collection chamber 17 through the dust outlet 57, being temporarily stored.

In one embodiment, as shown in fig. 10 and 11, a plurality of support posts 58 are provided between the upper partition 3 and the lower partition 4 to protect the dust cleaning apparatus 5. Further, a support beam may be installed at a lower portion of the upper diaphragm 3 to further support strength of the upper diaphragm.

In one embodiment, the outer contour of the outer case 1 and the outer contour of the inner case 2 both have a substantially rectangular parallelepiped shape, and at least one inner vertical wall of the inner case 2 provided with the through hole 22 has a gap with the corresponding outer vertical wall 12 of the outer case 1 to form an air duct 18 communicating with the first air collection chamber 15. In an exemplary embodiment, a plurality of through holes 22 may be provided on the inner standing walls 21 of the front and rear sides of the inner case 2, and the left and right standing walls of the inner case 2 may be the standing walls of the outer case 1, so that the volume of the inner case 2 may be increased as much as possible while ensuring that the air of the inner case 2 can smoothly flow to the first plenum 15 through the through holes 22 and the air duct 18.

Referring to fig. 2-6 and 10, in one embodiment, the cover 11 is provided with a vent, and the vent is provided with a filter screen 111. For example, the screen 111 may be made of a multi-layer filter cloth with many fine through holes to form a dust removal cloth bag. In the working process, the cover body 11 covers the outer box body 1, so that the inner box body 2 can be ensured to keep a preset pressure, gas can flow from the inner box body 2 through the through holes 22, meanwhile, part of gas passes through the filter screen and is discharged to the atmosphere, the pressure in the inner box body 2 is not too high, the straw can enter the inner box body 2, and in addition, the gas flowing out of the filter screen can be purified.

In one embodiment, an induced draft fan 141 is provided at the air outlet 14 of the outer bottom wall 13 of the outer box 1. For example, induced draft fan 141 comprises a centrifugal induced draft fan. Thus, the air flow in the outer box 1 can be accelerated by the induced air action of the induced draft fan 141, and the separation effect of air and dust can be improved.

2-7, in one embodiment, the straw collecting apparatus 100 further comprises a first driving means 7 configured to drive the outer housing 1 to tilt to the left to dump the straw received in the inner housing 2.

In an exemplary embodiment, the outer standing wall of the left side (from the front of the straw harvester) of the outer box 1 is provided with a dust discharge port communicating with the dust collection chamber 18, and the dust discharge port is provided with a dust discharge door 6. The dust, debris and the like collected in the dust collection chamber 18 can be discharged by manually or automatically opening the dust discharge door 6.

In one embodiment, the straw collecting apparatus 100 further comprises a second driving means 61 configured to open or close the ash discharge door 6. The second driving means 61 may be controlled to open the dust discharge door 6 in response to the inclined state of the outer case 1 to discharge the dust in the dust collection chamber 18, and to close the dust discharge door 6 in response to the upright state of the outer case 1 to maintain the pressure in the outer case 1 and the inner case 2 and to prevent the dust from being scattered freely from the dust collection chamber. A circle of sealing strip can be arranged in the ash discharge door 6 to increase the sealing effect and prevent the outside air flow from interfering the dust removal operation of the air purification device in the outer box body 1.

In an exemplary embodiment, the second driving means 61 comprises a pneumatic cylinder. However, the present invention is not limited thereto, and the second driving device may include a hydraulic cylinder, a solenoid valve, or a motor. In the illustrated embodiment, the second driving device 61 pushes the dust discharge door 6 to be pivotally opened or closed. In an alternative embodiment, the first drive can be moved linearly to open or close the dust extraction door.

Fig. 8 is a front view of a straw collection device, according to another exemplary embodiment of the present invention.

As shown in fig. 8, the outer standing wall of the right side of the outer casing 1 (as viewed from the front of the straw harvester, the following description with respect to left, right, clockwise and counterclockwise are defined as viewed from the front of the straw harvester) is provided with a dust discharge port communicating with the dust collection chamber 18, and the first driving means drives the outer casing to tilt rightward.

In one embodiment, as shown in fig. 2 to 7, the straw collecting device 100 further comprises a pair of first supporting frames 71, wherein the lower ends of the first supporting frames 71 are respectively fixed on the underframe 102 of the vehicle, and the upper ends of the first supporting frames 71 are respectively hinged on the outer standing wall at the front side and the outer standing wall at the rear side of the outer box body 1. The first driving means 7 comprises a pair of hydraulic cylinders 72, the ends of the cylinders 721 of the hydraulic cylinders 72 are respectively hinged on the chassis 102, and the free ends of the piston rods 722 telescopically mounted in the cylinders 721 are respectively hinged on the outer vertical wall of the front side and the outer vertical wall of the rear side of the outer box body 1. Thus, during the extension of the piston rod 722 out of the cylinder 721, the piston rod 722 drives the outer case 1 to rotate relative to the first support frame 71, so that the outer case 1 tilts and the outer bottom wall of the outer case is separated from the vehicle underframe 102, so as to pour out the straw such as peanut vine contained in the inner case 2.

In one embodiment, the straw collecting apparatus 100 further comprises a pair of holding frames 73, and the holding frames 73 are obliquely fixed between the first supporting frames 71 and the underframe 102. The ends of the cylinder bodies 721 of the hydraulic cylinders 72 are respectively hinged on the holder frame 73. The holding frame 73 can increase the supporting strength of the first support frame 71 to prevent the first support frame 71 from tilting.

In one embodiment, the straw collecting apparatus 100 further comprises a pair of second support frames configured to drive the cover 11 to open or close during the rotation of the outer case 1 relative to the first support frame 71 driven by the first driving device 7. Further, each of the second support frames includes a first driving rod 74 and a second driving rod 75 hinged to the first driving rod. A first end of the first drive lever 74 is hinged to the first support bracket 71. The upper end of a second driving rod 75 is fixed to the cover 11, and the lower end of the second driving rod 75 is hinged to the second end of the first driving rod 74, so that the first driving rod 74 drives the cover 11 to rotate relative to the outer box 1 through the second driving rod 75 during the period that the first driving device 7 drives the outer box 1 to rotate relative to the first supporting frame 71, thereby opening the outer box 1 and the inner box 2, so that the straw in the inner box 2 can be poured out.

Thus, as shown in fig. 6, during the period that the piston rod 722 extends out of the cylinder 721, the outer case 1 rotates counterclockwise around the upper end of the first support frame 71, and as the outer case 1 rotates, the bottom wall of the outer case 1 leaves the underframe 102 of the vehicle, and at the same time, the first drive lever 74 pulls the second drive lever 75, so that the cover 11 rotates clockwise relative to the outer case 1, thereby opening the outer case 1 and the inner case 2, and when the outer case 1 rotates counterclockwise through an angle of 90 degrees, the straw stored in the inner case can be dumped out of the inner case. On the other hand, during the retraction of the piston rod 722 into the cylinder 721, the outer case 1 rotates clockwise about the upper end of the first support bracket 71, and as the outer case 1 rotates, the bottom wall of the outer case 1 is gradually placed on the undercarriage 102 of the vehicle, and at the same time, the first drive lever 74 pushes the second drive lever 75, so that the cover 11 rotates counterclockwise with respect to the outer case 1, thereby closing the outer case 1 and the inner case 2 in preparation for the next operation of storing straw and purifying gas.

In one embodiment, the first drive rod includes a first sub-drive rod 741 and a second sub-drive rod 742. The first end of the first sub driving rod 741 is hinged to the first support frame 71; a second end of the first sub driving lever 741 is hinged to a first end of the second sub driving lever 742, and a second end of the second sub driving lever 742 is hinged to a lower end of the second driving lever 75. In this way, when the cover 11 closes the outer case 1, the first drive lever 74 is bent as a whole, and the cover can be held in a tightly closed state. In one embodiment, a tilt lever 76 may be provided between the cover 11 and the second driving lever 75 to increase the strength of the second driving lever 75.

It can be understood that when the outer case 1 is rotated to the maximum angle, the dust discharge door 6 is also simultaneously rotated to the maximum angle, so that the straw and the dust can be simultaneously discharged.

Fig. 15 is a schematic view of a roller shade device according to an exemplary embodiment of the present invention; fig. 16 is a radial sectional view of a rotating shaft of the winding device shown in fig. 15.

2-7, 15 and 16, in one embodiment, the straw collecting apparatus 100 further comprises a screen 8, the screen 8 being attached at a first end to the underframe 102 of the vehicle and at a second end to the lower part of the ash discharge door 6. In this way, during the overturning of the outer box, the screen 8 will gradually unfold, thus avoiding the fall of dust onto the chassis 102 of the vehicle. For example, when the first driving device drives the outer box 1 to rotate and lift up, the shielding curtain fixed on the bottom wall of the outer box 1 is pulled out of the winding device together, when the outer box 1 is lifted up to the top, the shielding curtain 8 and the bottom wall 13 of the outer box 1 form an angle of 45 degrees, and dust in the dust collection chamber of the outer box can slide down to the ground along the shielding curtain. Thus, when the outer box body is lifted to discharge dust, the dust can be prevented from directly falling into the chassis of the vehicle and/or the centrifugal induced draft fan 141.

In one embodiment, the straw collecting apparatus 100 further comprises a roller blind apparatus 81, the roller blind apparatus 81 is installed at a lower portion of the ash discharge door 6 of the outer box 1 or the underframe 102 of the vehicle, and a first end or a second end of the curtain cloth 8 is connected to the roller blind apparatus 81. In one embodiment, the rolling shutter device 81 includes a rotation shaft 811, a pair of support frames 812, and a pair of coil springs 813. The first end of the shielding curtain cloth 8 is connected to the rotating shaft 811. The pair of support frames 812 are mounted on the underframe 102 of the vehicle (or the lower portion of the ash discharge door 6 of the outer case 1), and both ends of the rotation shaft 811 are rotatably mounted on the support frames 811. Bearing means may be mounted within the support frame 812 to facilitate rotation of the shaft. The pair of coil springs 813 are installed at both ends of the rotation shaft 811, and the shade curtain 8 is unwound from the rotation shaft 811 against the elastic force of the coil springs 813. Thus, during the counterclockwise rotation of the outer case 1, the shielding curtain 8 is gradually unfolded against the elastic force of the coil spring 813, and during the clockwise rotation of the outer case 1, the shielding curtain 8 is gradually wound on the rotation shaft 811 by the coil spring 813.

In an exemplary embodiment, as shown in fig. 15 and 16, one end of the screen cloth 8 is fixed to a rod 814 such as a metal pipe, a fixing groove 815 extending in an axial direction is formed on the rotation shaft 811, and the rod 814 is fixed in the fixing groove 815, so that the screen cloth 8 can be wound around the rotation shaft 811.

It will be appreciated by those skilled in the art that the above described embodiments are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without conflict in structure or principle, thereby realizing more straw collecting devices and crop harvesters based on solving the technical problems of the present invention.

Having described preferred embodiments of the present invention in detail, it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the scope and spirit of the appended claims, and the invention is not to be limited to the exemplary embodiments set forth in the specification. It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude a plurality. Additionally, any element numbers of the claims should not be construed as limiting the scope of the invention.

Claims

1. A straw collection device, comprising:

the outer box body comprises a cover body, an outer vertical wall and an outer bottom wall, and an air outlet is formed in the outer bottom wall;

the inner box body is accommodated in the outer box body, a straw inlet communicated with the outside is formed in the inner box body, and at least one through hole is formed in at least one part of the inner vertical wall of the inner box body;

the upper partition plate is arranged in the outer box body, and a first gas collecting chamber is arranged between the upper partition plate and the inner bottom wall of the inner box body so as to collect unpurified gas flowing out of the through hole of the inner box body;

the lower partition plate is arranged at the lower part of the upper partition plate, and a second air collecting chamber is formed between the lower partition plate and the outer bottom wall of the outer box body; and

and the air purification devices are arranged between the upper partition plate and the lower partition plate, the air inlet of each air purification device is communicated with the first air collection chamber, and the air outlet of each air purification device is communicated with the second air collection chamber.

2. The straw collecting apparatus of claim 1, wherein a dust collecting chamber is formed between the upper and lower partitions, and each of the air cleaning devices is provided with a dust outlet communicating with the dust collecting chamber to collect separated dust in the dust collecting chamber.

3. The straw collecting device according to claim 2, wherein each of the air cleaning devices comprises:

the outer side of the upper cylinder body is fixed on the upper partition plate;

a plurality of helical blades arranged inside the upper cylinder, wherein unpurified gas from the first gas collection chamber passes through the helical blades through the gas inlet so as to realize the separation of dust and air; and

a lower cylinder inserted at an upper portion thereof into a lower portion of the upper cylinder and forming the dust outlet between an inner wall of the upper cylinder and an outer wall of the lower cylinder, a lower end outer side of the lower cylinder being fixed to the lower partition plate such that purified air flows into the second air collection chamber through the lower cylinder.

4. The straw collecting device according to claim 3, wherein a plurality of support columns are provided between the upper and lower partition plates.

5. The straw collecting device according to any one of claims 1 to 4, wherein the outer profiles of the outer and inner boxes each have a substantially rectangular parallelepiped shape, and an air duct communicating with the first air collecting chamber is formed between at least one inner vertical wall of the inner box provided with the through hole and the corresponding outer vertical wall of the outer box.

6. A straw-collecting device according to any of claims 1 to 4, wherein said cover is provided with a vent, said vent being provided with a sieve.

7. A straw collecting device according to any one of claims 1 to 4, wherein an induced draft fan is provided at the air outlet of the outer bottom wall.

8. The straw collection device of any one of claims 2 to 4, further comprising a first drive means configured to drive the outer box to tilt to the left or right to dump the straw contained in the inner box.

9. The straw collecting device according to claim 8, wherein the outer vertical wall of the left or right side of the outer box is provided with a dust outlet communicated with the dust collecting chamber, and the dust outlet is provided with a dust discharging door.

10. The straw collection device of claim 9, further comprising a second drive configured to open or close the ash discharge door.

11. The straw collecting apparatus of claim 10, wherein the second driving means opens the dust discharge door in response to the inclined state of the outer case and closes the dust discharge door in response to the upright state of the outer case.

12. The straw collecting device according to claim 10, wherein said first actuating means comprises a pneumatic cylinder.

13. The straw collecting device according to claim 9, further comprising a curtain cloth, wherein a first end of the curtain cloth is connected to the underframe of the vehicle, and a second end of the curtain cloth is connected to the lower part of the ash discharge door.

14. The straw collecting device according to claim 13, further comprising a roller blind assembly mounted to a lower portion of a dust discharge door of the outer box or the underframe of the vehicle, wherein the first end or the second end of the curtain cloth is connected to the roller blind assembly.

15. The straw collecting device according to claim 14, wherein said roller blind means comprises:

the first end of the shielding curtain cloth is connected to the rotating shaft;

the pair of supporting frames are arranged at the lower part of the ash discharge door of the chassis or the outer box body of the vehicle, and two ends of the rotating shaft are rotatably arranged on the supporting frames; and

and the pair of coil springs are arranged at two ends of the rotating shaft, and the shielding curtain cloth resists the elasticity of the coil springs and is unwound from the rotating shaft.

16. The straw collecting device according to claim 8, further comprising a pair of first supporting brackets, the lower ends of which are respectively fixed to the underframe of the vehicle, and the upper ends of which are respectively hinged to the outer standing wall at the front side and the outer standing wall at the rear side of the outer box body;

the first driving device comprises a pair of hydraulic cylinders, the end parts of cylinder bodies of the hydraulic cylinders are respectively hinged on the underframe, the free ends of piston rods telescopically installed in the cylinder bodies are respectively hinged on the outer vertical wall on the front side and the outer vertical wall on the rear side of the outer box body, and the piston rods drive the outer box body to rotate relative to the first supporting frame during the piston rods extend out of the cylinder bodies.

17. The straw collection device of claim 16, further comprising a pair of retaining frames, the retaining frames being angularly fixed between the first support brackets and the base frame,

the ends of the cylinder body of the hydraulic cylinder are respectively hinged on the holding frame.

18. The straw collection device of claim 17, further comprising a pair of second support brackets configured to drive the cover to open or close during rotation of the outer housing relative to the first support brackets by the first drive means.

19. The straw collection device of claim 18, wherein each of said second support brackets comprises:

a first drive rod, a first end of the first drive rod being hinged to the first support frame; and

a second driving rod, an upper end of which is fixed to the cover body, and a lower end of which is hinged to a second end of the first driving rod, so that the first driving rod drives the cover body to rotate relative to the outer box body through the second driving rod during the first driving device drives the outer box body to rotate relative to the first supporting frame.

20. The straw collecting device according to claim 19, wherein the first drive rod comprises:

the first end of the first sub-driving rod is hinged to the first support frame; and

the second end of the first sub-driving rod is hinged to the first end of the second sub-driving rod, and the second end of the second sub-driving rod is hinged to the lower end of the second driving rod.

21. A crop harvester, comprising:

a work vehicle;

a harvesting device installed at a front end of the work vehicle and configured to harvest crops;

a separating device mounted on the work vehicle and configured to separate fruits and stalks of the crops;

a straw conveying device configured to convey separated straw; and

a straw collection device according to any one of claims 1 to 20, mounted on the rear undercarriage of the vehicle.

22. The crop harvester of claim 21, wherein the straw conveying device comprises:

one end of the conveying pipe is communicated with the separating device to receive the separated straws, and the other end of the conveying pipe is connected to the straw inlet of the inner box body; and

a primary centrifuge mounted in the transport pipe.