CN219182112U

CN219182112U - Hand-held small combine harvester

Info

Publication number: CN219182112U
Application number: CN202223519890.6U
Authority: CN
Inventors: 倪志明; 倪圣道; 倪圣发; 沈永青
Original assignee: Yancheng Xinmingyue Machinery Manufacturing Co ltd
Current assignee: Yancheng Xinmingyue Machinery Manufacturing Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-06-16
Anticipated expiration: 2032-12-28

Abstract

The utility model relates to the technical field of harvesting devices, in particular to a hand-held small combine harvester. The harvester comprises a harvester frame, a header is connected to the front end of the harvester frame, and a reel device, a cutter bar, a threshing device, a grain discharging device and a impurity removing fan are all arranged on the harvester frame; the bottom of the harvester frame is rotationally connected with a pair of driving wheels, the engine supplies power for the driving wheels through a gearbox, the bottom of one end of the harvester frame far away from the header is also connected with a steering wheel, and the steering wheel is driven by a steering shaft to rotate so as to realize steering of the harvester frame. The improved harvester realizes the forward or backward movement of the harvester frame under the drive of the driving wheel, and the steering shaft drives the steering wheel to rotate so as to realize the steering of the harvester frame, thereby realizing the hand-held operation of operators, having simple structure and smaller volume and reducing the use investment cost.

Description

Hand-held small combine harvester

Technical Field

The utility model relates to the technical field of harvesting devices, in particular to a hand-held small combine harvester.

Background

With popularization of agricultural mechanization in China, sales and usage of agricultural machine products continue to increase, agricultural machine technology and product performance continue to upgrade, and the number of functional composite large-scale agricultural machines used in agricultural production is obviously increased. The combine harvester is a harvester product widely applied in agricultural production, is commonly used for harvesting large grain crops such as corn, wheat, rice and the like, and can also be used for harvesting crops such as soybean, sorghum and the like at high efficiency.

For areas such as Yun Guichuan in China, some areas are mountain forests, ravines and the like, and medium and large harvesting machines cannot enter, so that rice harvesting is still mainly performed manually, and the efficiency and the labor intensity are low. In addition, rice harvesting in many countries with economic lags is also manual harvesting, and medium-sized harvesting machines cannot be popularized and used in the area due to higher price, so that a small-sized harvesting machine which can replace manual harvesting and is high in quality and low in cost is needed.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the hand-held small combine harvester, the improved harvester realizes the forward or backward movement of the harvester frame under the drive of the driving wheel, and the steering shaft drives the steering wheel 8 to rotate so as to realize the steering of the harvester frame, thereby realizing the hand-held operation of operators, having simple structure and smaller volume and reducing the use investment cost.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the hand-held small combine harvester comprises a reel device, a cutter bar, a header, a threshing device, a grain discharging device and a impurity removing fan, and further comprises a harvester frame, wherein the header is connected to the front end of the harvester frame, and the reel device, the cutter bar, the threshing device, the grain discharging device and the impurity removing fan are all arranged on the harvester frame. The harvester frame is also fixedly connected with an engine and a gearbox, the bottom of the harvester frame is rotationally connected with a pair of driving wheels, the engine supplies power for the driving wheels through the gearbox, and the harvester frame is driven by the driving wheels to realize advancing or retreating. The bottom of one end of the harvester frame far away from the header is also connected with a steering wheel, and the steering wheel is driven by a steering shaft to rotate so as to realize steering of the harvester frame.

Further, one end of the header, which is far away from the harvester frame, is connected with the knife bar, and the upper part of the header is also rotationally connected with the reel device. On the header, one side of the cutter bar, which is close to the harvester frame, is provided with a conveying auger. The harvesting machine is characterized in that a harvesting table discharging hole is formed in one side, facing the harvester frame, of the harvesting table, and a crop conveying belt is arranged between the harvesting table discharging hole and a feeding hole of the threshing device.

The grain discharging device and the impurity removing fan are both positioned on one side, far away from the cutting table, of the threshing device, a discharging hole of the threshing device is communicated with a feeding hole of the grain discharging device, a grain discharging hole is formed in the bottom of the grain discharging device, and an impurity discharging hole is formed in the top of the grain discharging device. The harvester frame is positioned below the grain discharge port of the grain discharging device and is fixedly connected with a grain receiving disc, and the impurity discharge port of the grain discharging device is communicated with the air inlet of the impurity removing fan through an air pipe.

Further, the steering wheel is rotatably connected to a steering wheel fork, and the top of the steering wheel fork is rotatably hinged with the harvester frame. Through the hinge point, the steering wheel fork can rotate around a vertical axis, and then the steering wheel is driven to rotate so as to realize the steering of the harvester frame. The steering shaft is vertically arranged, one end of the steering shaft, which is close to the steering wheel fork, is fixedly connected with one end of the steering rocker, the other end of the steering rocker is rotationally hinged with one end of the steering connecting rod, the other end of the steering connecting rod is rotationally hinged with one end of the steering driving plate, and the other end of the steering driving plate is fixedly connected with one side of the top of the steering wheel fork. When the steering shaft rotates in a reciprocating manner, the steering rocker is driven to swing in a reciprocating manner, and the steering rocker drives the steering wheel fork to rotate in a reciprocating manner around the vertical axis through the steering connecting rod and the steering driving plate, so that the frame of the harvester is finally steered.

Further, the conveying auger comprises a cylindrical rotary cylinder body, and two ends of the rotary cylinder body are rotatably arranged on the cutting table. Two spiral blades are sequentially arranged on the outer side wall of the rotary cylinder along the length direction of the rotary cylinder, the rotation directions of the two spiral blades are opposite, and when the rotary cylinder rotates, the two spiral blades can convey materials from the left side and the right side of the rotary cylinder to the middle. The screw blade with the position department that the header discharge gate corresponds is equipped with the flitch, the flitch is followed rotate the axial setting of barrel and with rotate barrel fixed connection.

Compared with the prior art, the utility model has the beneficial effects that:

the combine harvester uses the driving wheel and the steering wheel to replace the walking crawler belt of the existing harvester, realizes the hand-held operation of operators, has simple structure and small volume, reduces the use investment cost of the harvester, and is beneficial to the popularization in remote mountain areas or economic lagging areas.

The spiral direction of the two spiral blades is opposite, materials in the header can be conveyed from two sides to the middle, the phenomenon that the materials are blocked on the header can be avoided, the width of the crop conveying belt can be reduced, and the equipment investment cost is reduced.

Drawings

Fig. 1 is a three-dimensional outline view of a walk-behind mini-combine of the present utility model.

Figure 2 is a second three-dimensional outline view of a walk-behind mini-combine of the present utility model.

Fig. 3 is a three-dimensional outline view of a harvester frame, a driving wheel and a steering wheel in the utility model.

FIG. 4 is a three-dimensional outline view of a blade, a header and a conveying auger in the present utility model.

Fig. 5 is a three-dimensional outline view of a header and a header discharge port in the present utility model.

FIG. 6 is a three-dimensional outline view of the conveying auger of the present utility model.

Fig. 7 is a three-dimensional outline view of a steering wheel, a steering wheel fork, and a steering shaft according to the present utility model.

Fig. 8 is a second three-dimensional outline view of the steering wheel, the steering wheel fork, and the steering shaft in the present utility model.

Fig. 9 is a partial enlarged view at a in fig. 8.

In the figure: 1. the harvester comprises a reel, a grain pulling device, 2, a blade, 3, a header, 4, a threshing device, 5, a grain discharging device, 6, an impurity removing fan, 7, a driving wheel, 8, a steering wheel, 9, a steering shaft, 10, a harvester frame, 11, a grain receiving disc, 12, a conveying auger, 1201, a helical blade, 1202, a pushing plate, 1203, a rotary cylinder, 13, a header discharge hole, 14, a gearbox, 15, a steering driving plate, 16, a steering rocker, 17, a steering connecting rod, 18, a steering wheel fork, 19, a crop conveying belt, 20 and an engine.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 and 2, the small hand combine harvester comprises a reel device 1, a cutter bar 2, a header 3, a threshing device 4, a grain discharging device 5 and a impurity removing fan 6, and further comprises a harvester frame 10, wherein the header 3 is connected to the front end of the harvester frame 10, and the reel device 1, the cutter bar 2, the threshing device 4, the grain discharging device 5 and the impurity removing fan 6 are all arranged on the harvester frame 10.

As shown in fig. 3, the harvester frame 10 is further fixedly connected with an engine 20 and a gearbox 14, the bottom of the harvester frame 10 is rotatably connected with a pair of driving wheels 7, the engine 20 supplies power to the driving wheels 7 through the gearbox 14, and the harvester frame 10 is driven by the driving wheels 7 to move forwards or backwards. The bottom of one end of the harvester frame 10, which is far away from the header 3, is also connected with a steering wheel 8, and the steering wheel 8 is driven to rotate by a steering shaft 9 to realize steering of the harvester frame 10. In use, the engine 20 and gearbox 14 provide forward or reverse power for the harvester, and an operator operates the steering shaft 9 on one side of the steering wheel 8 to steer the harvester. The driving wheel 7 and the steering wheel 8 for the combine harvester replace the walking caterpillar of the existing harvester, realize the hand-held operation of operators, have simple structure and small volume, reduce the use investment cost of the harvester and are beneficial to the popularization in remote mountain areas or economic lagging areas.

As shown in fig. 4 and 5, in practical application, one end of the header 3 far away from the harvester frame 10 is connected with the knife 2, and the reel device 1 is further rotatably connected above the header 3. On the header 3, a conveying auger 12 is arranged on one side of the cutter bar 2, which is close to the harvester frame 10. A header discharging hole 13 is formed in one side, facing the harvester frame 10, of the header 3, and a crop conveying belt 19 is arranged between the header discharging hole 13 and a feeding hole of the threshing device 4. The reel device 1 is used for reel crops to be harvested to one side of the header 3, the cutter bar 2 is used for cutting the crops, the conveying auger 12 is used for conveying the cut crops from the header discharge port 13 to the crop conveying belt 19, and the crop conveying belt 19 is used for conveying the crops to the threshing device 4.

As shown in fig. 1 and 2, the grain discharging device 5 and the impurity removing fan 6 are both positioned on one side of the threshing device 4 away from the header 3, a discharging hole of the threshing device 4 is communicated with a feeding hole of the grain discharging device 5, a grain discharging hole is formed in the bottom of the grain discharging device 5, and an impurity discharging hole is formed in the top of the grain discharging device 5. The harvester frame 10 is fixedly connected with a grain receiving tray 11 positioned below a grain discharge port of the grain discharging device 5, and an impurity discharge port of the grain discharging device 5 is communicated with an air inlet of the impurity removing fan 6 through an air pipe. After threshing device 4 accomplishes threshing, will grain and impurity carry in the grain device 5 goes out, under the effect of gravity, grain from the grain discharge gate of grain device 5 falls down, impurity is under the effect of fan negative pressure from the impurity discharge gate of grain device 5 discharges.

As shown in fig. 7 to 9, the steering wheel 8 is rotatably connected to a steering wheel fork 18, and the top of the steering wheel fork 18 is rotatably hinged to the harvester frame 10. Through this hinge point, the steering wheel fork 18 can rotate around a vertical axis, thereby driving the steering wheel 8 to rotate to steer the harvester frame 10. The steering shaft 9 is vertically arranged, one end of the steering shaft, which is close to the steering wheel fork 18, is fixedly connected with one end of the steering rocker 16, the other end of the steering rocker 16 is rotationally hinged with one end of the steering connecting rod 17, the other end of the steering connecting rod 17 is rotationally hinged with one end of the steering driving plate 15, and the other end of the steering driving plate 15 is fixedly connected with one side of the top of the steering wheel fork 18. When the steering shaft 9 rotates reciprocally, the steering rocker 16 is driven to swing reciprocally, the steering rocker 16 drives the steering wheel fork 18 to rotate reciprocally around the vertical axis through the steering connecting rod 17 and the steering driving plate 15, and finally the steering of the harvester frame 10 is realized.

As shown in fig. 6, in practical application, the conveying auger 12 includes a cylindrical rotating cylinder 1203, and two ends of the rotating cylinder 1203 are rotatably disposed on the header 3. On the outer side wall of the rotating cylinder 1203, two spiral blades 1201 are sequentially arranged along the length direction of the rotating cylinder 1203, the rotation directions of the two spiral blades 1201 are opposite, and when the rotating cylinder 1203 rotates, the two spiral blades 1201 can convey materials from the left side and the right side of the rotating cylinder 1203 to the middle. The screw blade 1201 is provided with a pushing plate 1202 at a position corresponding to the header discharge port 13, and the pushing plate 1202 is disposed along the axial direction of the rotating cylinder 1203 and is fixedly connected with the rotating cylinder 1203. When the rotating cylinder 1203 rotates, the pushing plate 1202 can push the material on the header 3 near the header discharge port 13 to the crop conveying belt 19. The spiral blades 1201 are opposite in rotation direction, and can convey the materials in the header 3 from two sides to the middle, so that the width of the crop conveying belt 19 can be reduced, and the investment cost can be reduced.

The foregoing has outlined and described the basic principles, features, and advantages of the present utility model. The front, rear, left, right, end, front end and other directional indicators are merely illustrative structures and are not limiting. Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions may be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a small-size combine of hand, includes reel device (1), sword strip (2), header (3), thresher (4), goes out grain device (5), edulcoration fan (6), its characterized in that: the harvester comprises a harvester frame (10), a header (3) is connected to the front end of the harvester frame (10), and a reel device (1), a cutter bar (2), a threshing device (4), a grain discharging device (5) and a impurity removing fan (6) are all arranged on the harvester frame (10); an engine (20) and a gearbox (14) are fixedly connected to the harvester frame (10), a pair of driving wheels (7) are rotatably connected to the bottom of the harvester frame (10), and the engine (20) supplies power for the driving wheels (7) through the gearbox (14); the bottom of one end of the harvester frame (10) far away from the header (3) is also connected with a steering wheel (8), and the steering wheel (8) is driven to rotate by a steering shaft (9) to realize the steering of the harvester frame (10).

2. A walk behind mini-combine as claimed in claim 1, wherein: one end of the header (3) far away from the harvester frame (10) is connected with the cutter bar (2), and the reel device (1) is also rotationally connected above the header (3); on the header (3), a conveying auger (12) is arranged on one side of the cutter bar (2) close to the harvester frame (10); a header discharging hole (13) is formed in one side, facing the harvester frame (10), of the header (3), and a crop conveying belt (19) is arranged between the header discharging hole (13) and a feeding hole of the threshing device (4).

3. A walk behind mini-combine as claimed in claim 1, wherein: the grain discharging device (5) and the impurity removing fan (6) are both positioned on one side, far away from the header (3), of the threshing device (4), a discharging hole of the threshing device (4) is communicated with a feeding hole of the grain discharging device (5), a grain discharging hole is formed in the bottom of the grain discharging device (5), and an impurity discharging hole is formed in the top of the grain discharging device (5); the harvester frame (10) is positioned below a grain discharge port of the grain discharging device (5) and fixedly connected with a grain receiving disc (11), and an impurity discharge port of the grain discharging device (5) is communicated with an air inlet of the impurity removing fan (6) through an air pipe.

4. A walk behind mini-combine as claimed in claim 1, wherein: the steering wheel (8) is rotationally connected to a steering wheel fork (18), and the top of the steering wheel fork (18) is rotationally hinged with the harvester frame (10); the steering shaft (9) is vertically arranged, one end of the steering shaft, which is close to the steering wheel fork (18), is fixedly connected with one end of the steering rocker (16), the other end of the steering rocker (16) is rotationally hinged with one end of the steering connecting rod (17), the other end of the steering connecting rod (17) is rotationally hinged with one end of the steering driving plate (15), and the other end of the steering driving plate (15) is fixedly connected with one side of the top of the steering wheel fork (18).

5. A walk behind mini-combine as claimed in claim 2, wherein: the conveying auger (12) comprises a cylindrical rotary cylinder (1203), and two ends of the rotary cylinder (1203) are rotatably arranged on the header (3); two spiral blades (1201) are sequentially arranged on the outer side wall of the rotating cylinder (1203) along the length direction of the rotating cylinder (1203), the rotation directions of the two spiral blades (1201) are opposite, and when the rotating cylinder (1203) rotates, the two spiral blades (1201) can convey materials from the left side and the right side of the rotating cylinder (1203) to the middle; the screw blade (1201) is equipped with pushing plate (1202) with the position department that header discharge gate (13) corresponds, pushing plate (1202) follow the axial setting of rotating barrel (1203) and with rotate barrel (1203) fixed connection.