CN218244504U - Light and simple small and miniature self-discharging harvester - Google Patents

Abstract

The utility model discloses a light and simple small and miniature harvester for self-discharging grain, which comprises a conveying channel, a grain tank and a self-discharging device, wherein the conveying channel comprises a harvesting and threshing device positioned at the front end of the harvester, a cleaning device is arranged at the rear part of the harvesting and threshing device, the grain tank is arranged below an outlet at the rear end of an interlayer slide carriage of the cleaning device, and a grain collecting auger is transversely and rotatably arranged at the bottom of an inner cavity of the grain tank; the self-discharging device comprises a first grain discharging chain wheel arranged at one end of an auger shaft of the grain collecting auger, a grain discharging barrel frame which is obliquely upward at the first grain discharging chain wheel, and a second grain discharging chain wheel arranged at the upper part of an inner cavity of the grain discharging barrel frame, wherein the upper end of the grain discharging barrel frame is a grain discharging opening. The utility model discloses simplified cleaning plant and antiaircraft gun grain unloading device of large-scale harvester, collected rearmounted granary and self-discharging structure in an organic whole, installed at the complete machine rear, realized random storehouse and unloaded the integration, left out computer area, simplified the structure, remedied small miniature harvester and can not self-discharge grain, need random bagging-off, the short slab of artifical transport.

Description

Light and simple small and miniature harvester capable of discharging grain

Technical Field

The utility model relates to the technical field of agricultural machinery, more specifically say, relate to a light and simple is from little miniature harvester of unloading grain.

Background

At present, a large-scale grain combine harvester is provided with a grain tank and an antiaircraft gun self-unloading device, and is widely applied to large-area crop harvesting operation in plain. The cleaning device of the large grain combine harvester is of a blowing type following vibrating screen structure, the volume of the cleaning device occupies more than one third of the whole machine body, and the large grain combine harvester is not suitable for the farmland operation of hillside fields, small fields and mountain fields due to the large volume and the complex structure of the whole machine. One third of the cultivated land area of China is distributed in hilly mountain areas, and the cultivated lands are narrow in area per mu, different in shape, staggered in land, poor in step and disordered in layout.

The present best harvester widely used for ploughing and harvesting operations in hilly and mountainous areas is a small and miniature combine harvester which has the characteristics of small volume, narrow distance, light weight, fine manufacture, simple structure and the like. However, in order to achieve the best trafficability, the grain tank self-unloading of the small and miniature combine harvester is simplified into manual bagging, so that the labor intensity is relatively increased, the labor cost is multiplied, and the efficiency is low.

Therefore, in the current situation, it is necessary to provide a small mini-harvester for discharging grain, which can make up for the short board.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a light and simple is from little miniature harvester of grain, its concrete technical scheme as follows:

a light and simple small and miniature harvester capable of discharging grains automatically comprises a following-harvesting conveying channel, a grain tank and a self-discharging device, wherein the following-harvesting conveying channel comprises a harvesting threshing device positioned at the front end of the harvester, a cleaning device is installed behind the harvesting threshing device and is installed above a walking chassis of the harvester, the cleaning device comprises a vibrating screen support fixed on the upper surface of the walking chassis of the harvester, a vibrating screen plate capable of enabling grains to pass through is hung on the vibrating screen support, an interlayer slide carriage fixedly connected with the vibrating screen support is arranged at the lower part of the vibrating screen plate, and the interlayer slide carriage gradually inclines downwards from front to back; the upper part of the vibrating sieve plate is provided with a negative-pressure impurity pumping machine fixedly connected with the vibrating sieve support, an air suction opening of the negative-pressure impurity pumping machine is aligned with the sieve surface of the vibrating sieve plate, and an outlet of the harvesting and threshing device is aligned with the front end of the top surface of the vibrating sieve plate; the grain tank is arranged below the outlet at the rear end of the interlayer slide carriage, the top of the grain tank is open, and the grain tank is integrally self-locked at the rear end of the whole machine frame of the harvester; the bottom of the inner cavity of the grain tank is in a U-shaped groove shape, and a grain collecting auger is transversely and rotatably arranged in the groove and is vertical to the front-back direction; the self-discharging device comprises a first grain discharging chain wheel arranged at one end of an auger shaft of the grain collecting auger, a grain discharging barrel frame which is obliquely upward at the first grain discharging chain wheel, and a second grain discharging chain wheel arranged at the upper part of an inner cavity of the grain discharging barrel frame, wherein the upper end of the grain discharging barrel frame is a grain discharging port, an upward oblique chain is wound between the first grain discharging chain wheel and the second grain discharging chain wheel, and grain discharging scrapers are arranged on the upward oblique chain at intervals; one end of the auger shaft, which is far away from the first grain outlet chain wheel, extends out of the grain tank, a driving chain wheel is installed at the outer end part of the auger shaft, the driving chain wheel is connected with an engine of the harvester through a driving chain wheel set, and a tensioning wheel clutch device is installed on the driving chain wheel set.

The utility model relates to a small and miniature harvester of light and simple self-discharging grain has simplified cleaning plant and antiaircraft gun grain unloading device of large-scale harvester, collects rearmounted granary and self-discharging structure in an organic whole, installs at the complete machine rear, has realized that the storehouse unloads the integration at random, has left out the area of occupation of land, has simplified the structure, has compensatied small and miniature harvester and can not self-discharge grain, need random bagging-off, the short slab of artifical transport.

Preferably, reap thresher including the header that is located the harvester front end, the front end import that the conveying was rolled is connected to the rear of header, the front end import of threshing warehouse is connected to the rear end export that the conveying was rolled, is located the bottom import that the activity promoted the bucket is connected to the rear end export of threshing warehouse intermediate position, the top outlet of activity promotion bucket is aimed at the top surface front end of vibration sieve plate.

Preferably, a grain lifting device is installed in the movable lifting bucket, and a scraper chain is installed in the grain lifting device.

Preferably, a space for accommodating an engine is reserved between the bottom of the vibrating screen support and the harvester walking chassis, and the vibrating screen plate is stacked above the engine.

Preferably, a sieve plate motor for driving the vibrating sieve plate to move back and forth is installed on the vibrating sieve plate.

Preferably, the driving sprocket set comprises an engine belt pulley connected with a power output shaft of an engine, two transition shaft brackets with opposite positions are mounted at the rear end of a frame of the whole harvester, a transition shaft parallel to the axial direction of the grain collecting auger is rotatably mounted between the two transition shaft brackets through corresponding bearing seats, a transition belt pulley is fixedly mounted at one end of the transition shaft, a triangular belt is wound around the transition belt pulley and the engine belt pulley, and the middle section of the triangular belt is provided with the tension pulley clutch device; one end of the transition shaft, which is far away from the transition belt wheel, extends out of the corresponding bearing seat, a first-stage chain wheel is installed at the outer end part of the transition shaft, a second-stage double chain wheel is rotatably connected to the outer part of the whole harvester frame, the second-stage double chain wheel is positioned on the same side of the first-stage chain wheel and on the rear inclined lower side of the first-stage chain wheel, the first-stage chain wheel is connected with a driving wheel of the second-stage double chain wheel through a first-stage power chain, and a driven wheel of the second-stage double chain wheel is connected with a driving chain wheel which is also on the same side of the second-stage double chain wheel through a second-stage power chain.

Preferably, a grain receiving device is fixed on the outer side wall of the grain unloading barrel frame below the grain unloading opening.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1-3 are the overall structure schematic diagrams of the utility model of a light and simple grain self-discharging small and micro harvester.

Fig. 4 is a schematic view of the internal structure of the dump device.

Fig. 5 is a schematic view of the structure of the drive sprocket set.

In the figure: 1-a cutting table, 2-a conveying roller, 3-a threshing bin, 4-a movable lifting barrel, 5-a harvester traveling chassis, 6-a vibrating screen support, 7-a vibrating screen plate, 8-a sandwich slide carriage, 9-a negative pressure impurity extractor, 10-a grain tank, 11-a grain collecting auger, 12-an auger shaft, 13-a first grain outlet chain wheel, 14-a grain unloading barrel frame, 15-a grain unloading opening, 16-a driving chain wheel, 17-an engine belt wheel, 18-a transition shaft support, 19-a transition shaft, 20-a transition belt wheel, 21-a primary chain wheel, 22-a secondary double chain wheel and 23-an engine.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example (b):

to the defect of the manual work transport in bags at random of little miniature combine, the utility model provides a little miniature harvester of light and simple self-discharging grain, its cleaning plant and antiaircraft gun that has simplified large-scale harvester unload the grain device, have designed a rearmounted granary and self-discharging structure in self-discharging grain device of an organic whole, specifically do: on the premise of ensuring the cleaning standard of a large-scale harvester, the designed granary and the designed grain unloading are integrated and are arranged at the rear of the whole harvester.

As shown in fig. 1-5, the light and simple small and miniature harvester for discharging grain comprises a following-collecting conveying channel, a grain tank 10 and a self-discharging device.

The harvesting and conveying channel comprises a harvesting and threshing device positioned at the front end of the harvester, a cleaning device is arranged behind the harvesting and threshing device, the cleaning device is arranged above a walking chassis 5 of the harvester and comprises a vibrating screen bracket 6 fixed on the upper surface of the walking chassis 5 of the harvester, a vibrating screen plate 7 capable of allowing grains to pass through is hung on the vibrating screen bracket 6, an interlayer slide carriage 8 fixedly connected with the vibrating screen bracket 6 is arranged at the lower part of the vibrating screen plate 7, and the interlayer slide carriage 8 gradually inclines downwards from front to back; the upper part of the vibrating sieve plate 7 is provided with a negative pressure impurity pumping machine 9 which is fixedly connected with the vibrating sieve support 6, the air suction port of the negative pressure impurity pumping machine 9 is aligned with the sieve surface of the vibrating sieve plate 7, and the outlet of the harvesting and threshing device is aligned with the front end of the top surface of the vibrating sieve plate 7.

Furthermore, the harvesting and threshing device comprises a header 1 positioned at the front end of the harvester, the rear part of the header 1 is connected with the front end inlet of a conveying roller 2, the rear end outlet of the conveying roller 2 is connected with the front end inlet of a threshing bin 3, the rear end outlet positioned at the middle position of the threshing bin 3 is connected with the bottom end inlet of a movable lifting barrel 4, and the top end outlet of the movable lifting barrel 4 is aligned with the front end of the top surface of a vibrating sieve plate 7.

Meanwhile, a grain lifting device is installed in the movable lifting barrel 4, and a scraper chain capable of effectively conveying grains is installed in the grain lifting device.

The utility model discloses leave the space that is used for holding engine 23 between the bottom of shale shaker support 6 and harvester walking chassis 5, shale shaker 7 is overlapped in the top position of engine 23. The utility model discloses arrange the cleaning plant of taking out miscellaneous machine 9 constitution with intermediate layer carriage apron 8, shale shaker support 6, negative pressure in the top of engine 23, for range upon range of formula assembly structure, do not occupy frame effective position, the complete machine has reduced 1/3's volume.

Install the sieve motor that drives its drunkenness around vibrating screen 7 on, vibrating screen 7 drunkenness around the operation in-process, the cereal grain falls down from the sieve mesh, because of the effect of centripetal force of the weeds on top layer gathers vibrating screen 7 central authorities, is taken out by the negative pressure miscellaneous machine 9 production negative pressure of installing in the top and takes away for the cereal impurity rate of finally clearing out is less than national standard.

The grain tank 10 is arranged below the outlet at the rear end of the interlayer slide carriage 8, the top of the grain tank is open, and the grain tank is integrally self-locked at the rear end of the whole machine frame of the harvester, so that the grain tank replaces a manual bag receiving and supporting plate device of the original machine, and is light and simple; the bottom of the inner cavity of the grain tank 10 is in a U-shaped groove shape, and a grain collecting auger 11 is transversely and rotatably arranged in the groove perpendicular to the front-back direction.

The utility model discloses in, vibrating screen plate 7, intermediate layer carriage apron 8 and grain tank 10 all are three-dimensional installation, do not account for the complete machine space.

The self-discharging device comprises a first grain discharging chain wheel 13 arranged at one end of an auger shaft 12 of a grain collecting auger 11, a grain discharging barrel frame 14 which is obliquely upward at the first grain discharging chain wheel 13, and a second grain discharging chain wheel arranged at the upper part of an inner cavity of the grain discharging barrel frame 14, wherein a grain discharging port 15 is arranged at the upper end of the grain discharging barrel frame 14, an upward oblique chain is encircled between the first grain discharging chain wheel 13 and the second grain discharging chain wheel, and grain discharging scrapers are arranged on the upward oblique chain at intervals.

Meanwhile, a grain receiving device is fixed on the outer side wall of the grain unloading barrel frame 14 below the grain unloading opening 15.

One end of the auger shaft 12, which is far away from the first grain outlet chain wheel 13, extends out of the grain tank 10, a driving chain wheel 16 is arranged at the outer end part, the driving chain wheel 16 is connected with an engine 23 of the harvester through a driving chain wheel set, and a tension wheel clutch device is further arranged on the driving chain wheel set.

The driving chain wheel set comprises an engine belt pulley 17 connected with a power output shaft of an engine 23, two transition shaft brackets 18 with opposite positions are mounted at the rear end of a whole machine frame of the harvester, a transition shaft 19 parallel to the axial direction of the grain collecting auger 11 is rotatably mounted between the two transition shaft brackets 18 through corresponding bearing seats, one end of the transition shaft 19 is fixedly mounted with a transition belt pulley 20, belt pulley grooves are formed in the peripheral surfaces of the engine belt pulley 17 and the transition belt pulley 20, a triangular belt is wound between the transition belt pulley 20 and the engine belt pulley 17, and a tension pulley clutch device is mounted at the middle section of the triangular belt; one end of the transition shaft 19, which is far away from the transition belt wheel 20, extends out of the corresponding bearing seat, a first-stage chain wheel 21 is installed at the outer end part, a second-stage double chain wheel 22 is rotatably connected to the outer part of the whole machine frame of the harvester, the second-stage double chain wheel 22 is positioned on the same side of the first-stage chain wheel 21 and on the rear inclined lower side of the first-stage chain wheel 21, the first-stage chain wheel 21 is connected with a driving wheel of the second-stage double chain wheel 22 through a first-stage power chain, and a driven wheel of the second-stage double chain wheel 22 is connected with a driving chain wheel 16 which is also on the same side of the driven wheel through a second-stage power chain. The utility model discloses a control palm of take-up pulley clutch operates from top to bottom, can realize unloading of cereal and stop the action.

The utility model discloses a theory of operation does:

grains harvested by the header 1 are conveyed into a threshing bin 3 through a conveying roller 2, grains threshed through the threshing bin 3 enter a movable lifting barrel 4, the grains are lifted onto a vibrating sieve plate 7 through a scraper chain arranged in the movable lifting barrel 4, the grains leak from the vibrating sieve plate 7 and fall onto an interlayer slide carriage 8 in the process of moving the vibrating sieve plate 7 back and forth, the interlayer slide carriage 8 is an inclined plate inclined towards an outlet direction, the cleaned grains fall into a grain tank 10 through the outlet of the interlayer slide carriage 8, and weeds left on the vibrating sieve plate 7 are gathered to the center of the vibrating sieve plate 7 under the action of centripetal force and are pumped away by a negative pressure impurity pumping machine 9 arranged above the vibrating sieve plate 7;

the engine belt pulley 17 drives the transition belt pulley 20 to rotate, further drives the first-stage chain wheel 21 and the second-stage double chain wheel 22 to rotate, finally drives the driving chain wheel 16 to rotate, realizes speed reduction transmission, the driving chain wheel 16 drives the grain collecting auger 11 in the grain box 10 to rotate, grains are transmitted to the first grain outlet chain wheel 13 at the other end, and then the grains are thrown out to a car receiving hopper outside the grain unloading opening 15 through an upward inclined chain, so that self unloading is realized.

The cutting/threshing/cleaning operation process of the existing harvesting mechanism is realized, through the utility model discloses the innovation of technique, the cutting of the ears of grain that can adapt to height is got and translation conveying cereal to the complete machine rear end grain tank 10, has realized the automatic grain of unloading. And the utility model discloses a random storehouse unloads integrated design, does not enlarge the volume of harvester, also does not increase weight, has left out the area of occupation of machine, has simplified the structure, has realized having the combine that light and simple grain tank is self-discharging and has reaped, has compensatied the artifical short slab that unloads the grain in bags of little microcomputer, the multiple cost of labor that has reduced has alleviateed intensity of labour, has improved the operating efficiency.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. A light and simple small and miniature harvester capable of discharging grains automatically is characterized by comprising a following-collecting conveying channel, a grain tank and a self-discharging device, wherein the following-collecting conveying channel comprises a harvesting and threshing device positioned at the front end of the harvester, a cleaning device is arranged behind the harvesting and threshing device and is arranged above a walking chassis of the harvester; the upper part of the vibrating sieve plate is provided with a negative-pressure impurity pumping machine fixedly connected with the vibrating sieve support, an air suction opening of the negative-pressure impurity pumping machine is aligned with the sieve surface of the vibrating sieve plate, and an outlet of the harvesting and threshing device is aligned with the front end of the top surface of the vibrating sieve plate; the grain tank is arranged below the outlet at the rear end of the interlayer slide carriage, the top of the grain tank is opened, and the grain tank is integrally self-locked at the rear end of the whole machine frame of the harvester; the bottom of the inner cavity of the grain tank is in a U-shaped groove shape, and a grain collecting auger is transversely and rotatably arranged in the groove in a direction vertical to the front-back direction; the self-discharging device comprises a first grain discharging chain wheel arranged at one end of an auger shaft of the grain collecting auger, a grain discharging barrel frame which is obliquely upward at the first grain discharging chain wheel, and a second grain discharging chain wheel arranged at the upper part of an inner cavity of the grain discharging barrel frame, wherein the upper end of the grain discharging barrel frame is a grain discharging port, an upward oblique chain is wound between the first grain discharging chain wheel and the second grain discharging chain wheel, and grain discharging scrapers are arranged on the upward oblique chain at intervals; one end of the auger shaft, which is far away from the first grain outlet chain wheel, extends out of the grain tank, a driving chain wheel is installed at the outer end part of the auger shaft, the driving chain wheel is connected with an engine of the harvester through a driving chain wheel set, and a tensioning wheel clutch device is installed on the driving chain wheel set.

2. The light and simple small and self-discharging harvester according to claim 1, wherein the harvesting and threshing device comprises a header positioned at the front end of the harvester, the front end inlet of the conveying roller is connected at the rear part of the header, the front end inlet of the threshing bin is connected with the rear end outlet of the conveying roller, the rear end outlet of the threshing bin is connected with the bottom end inlet of the movable lifting barrel, and the top end outlet of the movable lifting barrel is aligned with the front end of the top surface of the vibrating screen plate.

3. The miniature light and simple grain self-discharging harvester according to claim 2, wherein a grain lifting device is installed in said movable lifting barrel, and a scraper chain is installed in said grain lifting device.

4. The light and simple small and miniature harvester for discharging grain according to claim 1, wherein a space for accommodating an engine is left between the bottom of the vibrating screen bracket and the walking chassis of the harvester, and the vibrating screen plate is stacked above the engine.

5. The miniature light and simple harvester according to claim 1, wherein said vibrating screen plate is provided with a screen plate motor for driving the vibrating screen plate to move back and forth.

6. The light and simple small miniature harvester for discharging grain according to claim 1, wherein the driving sprocket set comprises an engine pulley connected with a power output shaft of an engine, two transition shaft brackets are mounted at the rear end of a frame of the whole harvester at opposite positions, a transition shaft parallel to the axial direction of the grain collecting auger is rotatably mounted between the two transition shaft brackets through corresponding bearing seats, one end of the transition shaft is fixedly mounted with a transition pulley, a triangle belt is wound between the transition pulley and the engine pulley, and the middle section of the triangle belt is mounted with the tension pulley clutch device; one end of the transition shaft, which is far away from the transition belt wheel, extends out of the corresponding bearing seat, a first-stage chain wheel is installed at the outer end part of the transition shaft, a second-stage double chain wheel is rotatably connected to the outer part of the whole harvester frame, the second-stage double chain wheel is positioned on the same side of the first-stage chain wheel and on the rear inclined lower side of the first-stage chain wheel, the first-stage chain wheel is connected with a driving wheel of the second-stage double chain wheel through a first-stage power chain, and a driven wheel of the second-stage double chain wheel is connected with a driving chain wheel which is also on the same side of the second-stage double chain wheel through a second-stage power chain.

7. The miniature light and simple grain unloading harvester according to claim 1, wherein a grain receiving device is fixed on the outer side wall of the grain unloading barrel frame below the grain unloading port.

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