Crushing device for straw outlet of harvester

Abstract

The utility model relates to the technical field of agricultural harvesting, in particular to a harvester straw outlet smashing device which comprises a smashing device body, auxiliary throwing blades, a movable cutter and a movable cutter holder are arranged on the surface of a smashing device shaft, a fixed cutter is arranged at the bottom end of the smashing device body, and a throwing fan is arranged on one side of the rear end of the smashing device body. A material spraying pipe is arranged at the upper end of the throwing fan on one side of the rear end of the smashing machine body, a straw guide plate is arranged at the terminal end of the material spraying pipe, and the purpose of double harvesting of grain and straw of a common harvester is achieved by improving the structure of the smashing machine and additionally arranging a conveying structure and a throwing structure. And a conveying device, a throwing device and a straw guiding device are additionally arranged during crushing. Smashed straw can be thrown to the ground or a transport vehicle from the upper portion. The purposes of recycling and reusing the straw, achieving national energy conservation and environmental protection and increasing double profits of farmers and farmers are achieved, and the existing problem of treating the straw left after grain harvesting is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural harvesting, in particular to a straw outlet crushing device for a harvester. Background Art

[0002] After searching the existing Chinese patent document with the announcement number CN215421692U, a turning mechanism of a harvester straw crushing device and a harvester are disclosed, including a threshing chamber and a straw crushing device arranged at the outlet of the threshing chamber, the top of the straw crushing device is connected to the connection at the outlet of the threshing chamber through a rotating shaft, and the straw crushing device can rotate in the vertical direction with the rotating shaft as the axis; a torsion spring is arranged on the rotating shaft, one end of which is fixed to the top of the straw crushing device, and a locking device for fixing the straw crushing device is also arranged between the threshing chamber and the straw crushing device, and the device can quickly complete the disassembly and installation of the straw crushing device, so that when the harvester needs to transport over a long distance, a truck with a wheelbase or crawler length suitable for the harvester is selected, thereby reducing the transportation cost caused by selecting a longer truck. It also allows the harvester to quickly disassemble and assemble the straw crushing device according to the requirements for handling the harvested straw during harvesting operations.

[0003] The existing grain and straw double-harvesting machines can only harvest corn cobs, and the general purchase price is more than 200,000 yuan. The finished product after harvesting is corn on the cob, which most corn buyers do not purchase. After harvesting, an additional threshing process is required, so farmers in the south refuse to use the existing corn double-harvesting machines. There are no double-harvesting machines for other crops such as wheat and sorghum, which causes a large amount of straw to be crushed and buried back in the re-cultivated land, making the soil too fluffy and with large cavities, which is not conducive to short-term cultivation of crops to absorb water and fertilizers. If there is a slight drought, some farmers need to buy drought-resistant irrigation equipment, which creates an economic burden on farmers with low incomes. In addition, the existing harvester body space is limited and it is impossible to collect grass during harvesting. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a harvester straw outlet crushing device, aiming to solve the technical problem that the existing harvester body space is limited and the grass cannot be collected during harvesting.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model discloses a straw outlet crushing device for a harvester, comprising a crushing device body, a crusher shaft is arranged on the inner side of the end portion of one end surface of the crushing device body, an auxiliary throwing blade, a movable knife and a movable knife seat are arranged on the surface of the crusher shaft, a fixed knife is arranged on the bottom end of the crushing device body, a throwing fan is arranged on one side of the rear end of the crushing device body, a conveying shaft is arranged inside the throwing fan, the conveying shaft passes through the throwing fan and is connected and fixed to the rear end of the crushing device body, a spiral auger blade is arranged on one end of the surface of the conveying shaft, and a throwing blade is arranged on the surface of the other end, a spray pipe is arranged on the upper end of the throwing fan on one side of the rear end of the crushing device body, a spray pipe rotating device, a motor and a hydraulic cylinder are arranged at the middle end of the spray pipe, and a straw guide plate is arranged at the terminal of the spray pipe.

[0007] As a further description of the above technical solution:

[0008] The pulverizing device body comprises a shell, the pulverizer shaft and the auger conveying shaft are movably connected, and the pulverizer shaft and the auxiliary throwing blade, the moving knife seat and the moving knife are all fixedly connected.

[0009] As a further description of the above technical solution:

[0010] The auxiliary throwing blades and the moving knife seat are evenly welded to the crusher shaft at a certain angle. A fixed knife is arranged at the inner side end below the crushing device body and is fixedly connected to the crushing device body, and is alternately matched with the moving knife and leaves operating space.

[0011] As a further description of the above technical solution:

[0012] A conveying shaft is arranged inside the throwing blower, and the conveying shaft passes through the throwing blower and is movably connected with the rear end of the crushing device body and the shell, and the throwing blades are welded and fixed to the conveying shaft.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, by improving the structure of the crusher and adding a conveying and throwing structure, an ordinary harvester can achieve the purpose of harvesting both grain and straw, and a conveying, throwing and straw guiding device is added while crushing. The crushed straw can be thrown from above to the ground or onto a transport vehicle. The straw recycling and utilization is realized, the national energy conservation and environmental protection and the purpose of increasing the double profits of farmers and breeders are achieved, and the existing problem of handling the straw left after grain harvesting is effectively solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a side view schematic diagram of the overall structure of the spray pipe of the utility model;

[0017] Figure 2 It is a side view schematic diagram of the main structure of the pulverizing device of the utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the fixed knife structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the main body of the pulverizing device of the utility model;

[0020] Figure 5 It is a schematic diagram of the internal structure of the pulverizing device body of the utility model;

[0021] In the figure: 1. Crushing device body; 2. Crusher shaft; 3. Moving knife; 4. Fixed knife; 5. Auxiliary throwing blade; 6. Moving knife seat; 7. Conveying shaft; 8. Screw auger blade; 9. Throwing fan body; 10. Throwing fan blade; 11. Spraying pipe; 12. Motor; 13. Spraying rotating mechanism; 14. Hydraulic cylinder; 15. Straw guide plate. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0023] In the drawings, the same reference numerals all refer to the same components.

[0024] Example 1

[0025] Reference Figure 1-5 The utility model provides an embodiment: a harvester straw outlet crushing device, comprising a crushing device body 1, a crusher shaft 2 is arranged on the inner side of the end of one end surface of the crushing device body 1, and the surface of the crusher shaft 2 is provided with auxiliary throwing blades 5, a moving knife 3, and a moving knife seat 6, a fixed knife 4 is arranged at the bottom end of the crushing device body 1, a throwing fan 9 is arranged on one side of the rear end of the crushing device body 1, and a conveying shaft 7 is arranged inside the throwing fan 9, and the conveying shaft 7 passes through the throwing fan 9 and is connected and fixed to the rear end of the crushing device body 1, a spiral auger blade 8 is arranged on one end of the surface of the conveying shaft 7, and a throwing blade 10 is arranged on the other end surface, a spray pipe 11 is arranged on the upper end of the throwing fan 9 on one side of the rear end of the crushing device body 1, a spray pipe rotating device 13, a motor 12, and a hydraulic cylinder 14 are arranged at the middle end of the spray pipe 11, and a straw guide plate 15 is arranged at the terminal of the spray pipe 11.

[0026] The pulverizing device body 1 comprises a shell, a pulverizer shaft 2 and an auger conveying shaft 7 are movably connected, and the pulverizer shaft 2 and the auxiliary throwing blade 5, the moving knife seat 6, and the moving knife 3 are all fixedly connected.

[0027] The auxiliary throwing blade 5 and the moving knife seat 6 are evenly welded to the crusher shaft 2 at a certain angle. A fixed knife 4 is arranged at the inner side end below the crushing device body 1 and is fixedly connected to the crushing device body 1, and is alternately matched with the moving knife 3 and leaves space for operation.

[0028] A conveying shaft 7 is arranged inside the throwing blower 9 , and the conveying shaft 7 passes through the throwing blower 9 and is movably connected with the rear end of the pulverizing device body 1 and the shell, and the throwing blades 10 are welded and fixed to the conveying shaft 7 .

[0029] Specifically, its structure is composed of a crushing device body 1, a crusher shaft 2, a moving knife 3, a fixed knife 4, an auxiliary throwing blade 5, a moving knife seat 6, a conveying shaft 7, a spiral auger blade 8, a throwing fan body 9, a throwing fan blade 10, a spray pipe 11, a motor 12, a spray rotating mechanism 13, a hydraulic cylinder 14 and a straw guide plate 15 to form a harvester straw outlet crushing device, a crushing spindle 2 is arranged inside the crushing device body 1 and the harvester installation interface end, the crushing spindle 2 is provided with a moving knife 3, a moving knife seat 6 and an auxiliary throwing blade 5, and a fixed fixed knife 4 is arranged on the inner end face of the lower side structural body of the moving knife 3. A screw conveying shaft 7 is arranged on the rear side of the crushing device body 1, the movable knife 3 is fixed to the movable knife seat 6 and the auxiliary throwing blade 5 by screws, the movable knife seat 6 and the auxiliary throwing blade 5 are welded and fixed to the main shaft in multiple evenly distributed forms, the fixed knife 4 is fixed to the bottom of the crusher shaft 2 by screws and is staggered with the movable knife 3 and has a certain movable matching space, the crushing device body 1 and the throwing fan body 9 are provided with a conveying shaft 7, the conveying shaft 7 is movably connected to the shell, and the conveying shaft 7 is respectively provided with a spiral screw blade 8 and a throwing blade 5. The spiral auger blades 8, the throwing fan blades 10 and the conveying shaft 7 are all welded and fixed. The spiral auger blades 8 are double-bladed at the end close to the throwing fan body 9 and single-bladed at the other end. The throwing fan blades 10 are six-bladed. The crushing device body 1 and the throwing fan body 9 are fixedly connected. The spraying pipe 11 is fixedly connected to the throwing fan body 9. A spraying rotating mechanism 13 is arranged at the middle end of the spraying pipe 11. The spraying rotating mechanism 13 is movably connected to the spraying pipe 11. The spraying rotating mechanism 13 is provided with a motor 12. The motor 12 The spraying pipe 11 is connected to the spraying rotating mechanism 13 by a transmission chain and is fixedly connected to the spraying pipe 11 by screws. A hydraulic cylinder 14 is arranged at the upper end of the spraying pipe rotating mechanism 13. The hydraulic cylinder 14 is connected to the spraying pipe 11 by a pin shaft. The middle end of the spraying pipe 11 is curved. The straw guide plate 15 is movably connected to the spraying pipe 11. The straw guide plate 15 is controlled by the hydraulic cylinder 14 at the middle end of the spraying pipe 11 through a steel wire rope. The hydraulic cylinder 14 controls the upper spraying pipe 11 to be stored, bent and lowered in height and controls the straw guide plate 15 at the head of the spraying pipe 11 to move up and down. Thus, the components that control the straw to move forward or backward are controlled. The hydraulic cylinder 14 is extended and retracted to drive the steel rope to pull the straw guide plate 15 at the head of the spraying pipe 11 to move up and down. After the ordinary harvester is equipped with the harvester straw outlet crushing device, the straw spit out by the harvester is crushed, kneaded, and thrown through the harvester straw outlet crushing device, and can be sprayed onto the transport vehicle through the spray pipe, achieving the purpose of harvesting both grain and straw. Compared with the traditional harvester straw crushing device, which only has a single crushing function, it also adds a conveying, throwing and straw guiding device. It realizes the recycling and utilization of straw, effectively achieves the requirements of energy conservation and environmental protection, and increases the dual profits of farmers and breeders, and effectively solves the problem of handling the existing straw left after grain harvesting.

[0030] Working principle: The harvester straw outlet crushing device is connected and fixed to the harvester straw outlet. The straw spit out by the harvester when working enters the crusher, and is crushed and kneaded between the moving knife 3 and the fixed knife 4 set on the high-speed rotating crusher shaft 2. The auxiliary throwing fan blades 10 on the crusher shaft 2 and the centrifugal force generated during crushing are thrown backward to the active area of ​​the high-speed rotating conveying shaft, and then transported to the throwing fan body 9 by the spiral auger blades 8, and thrown to the upper spray pipe 11 through the throwing fan body 9. While passing through the spray pipe 11, the spraying direction and height of the straw can be controlled by controlling the spraying rotating mechanism 13 and the straw guide plate 15 on the spray pipe 11, and then the straw is sprayed from the terminal of the spray pipe 11 to the following transport vehicle.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A harvester straw outlet crushing device, comprising a crushing device body (1), characterized in that: A pulverizer shaft (2) is arranged on the inner side of the end of one end surface of the pulverizer body (1), and an auxiliary throwing blade (5), a moving knife (3), and a moving knife seat (6) are arranged on the surface of the pulverizer shaft (2). A fixed knife (4) is arranged at the bottom end of the pulverizer body (1). A throwing fan (9) is arranged on one side of the rear end of the pulverizer body (1), and a conveying shaft (7) is arranged inside the throwing fan (9). The conveying shaft (7) passes through the throwing fan (9) and is connected and fixed to the rear end of the pulverizer body (1). A spiral auger blade (8) is arranged on one end of the surface of the conveying shaft (7), and a throwing blade (10) is arranged on the other end surface. A spray pipe (11) is arranged on the upper end of the throwing fan (9) on one side of the rear end of the pulverizer body (1), and a spray pipe rotating device (13), a motor (12), and a hydraulic cylinder (14) are arranged at the middle end of the spray pipe (11). A straw guide plate (15) is arranged at the terminal of the spray pipe (11).

2. The harvester straw outlet crushing device according to claim 1, characterized in that: The pulverizing device body (1) comprises a shell, the pulverizer shaft (2) and the auger conveying shaft (7) are movably connected, and the pulverizer shaft (2) and the auxiliary throwing blade (5), the moving knife seat (6), and the moving knife (3) are all fixedly connected.

3. The harvester straw outlet crushing device according to claim 1, characterized in that: The auxiliary throwing blade (5) and the moving knife seat (6) are uniformly welded to the pulverizer shaft (2) at a certain angle. A fixed knife (4) is provided at the inner side end below the pulverizing device body (1) and is fixedly connected to the pulverizing device body (1), and is alternately matched with the moving knife (3) and has a running space.

4. The harvester straw outlet crushing device according to claim 1, characterized in that: A conveying shaft (7) is disposed inside the throwing blower (9). The conveying shaft (7) passes through the throwing blower (9) and is movably connected to the rear end of the pulverizing device body (1) and the shell. The throwing blades (10) are fixed to the conveying shaft (7) by welding.

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