Straw harvester

Abstract

The utility model belongs to the technical field of harvesters, and particularly relates to a straw harvester which comprises a mounting frame and a harvesting cutter shaft, a connecting rod is arranged at one end of the harvesting cutter shaft, a fixing sleeve is arranged at the other end of the harvesting cutter shaft, and the connecting rod is matched with the fixing sleeve to connect the harvesting cutter shaft to the mounting frame. A connecting groove is formed in one end of the harvesting cutter shaft, one end of the connecting rod extends into the connecting groove, a connecting assembly used for being connected with the harvesting cutter shaft is arranged between the connecting rod and the harvesting cutter shaft and between the fixing sleeve and the harvesting cutter shaft, and a transmission assembly used for driving the harvesting cutter shaft to rotate is arranged on the mounting frame. An upper anti-winding shell and a lower anti-winding shell are arranged on the mounting frame, fixing plates are arranged on one side of the upper anti-winding shell and one side of the lower anti-winding shell, mounting holes are formed in the fixing plates, and second bolts are arranged in the mounting holes. By means of the straw harvester, straw of different crops can be harvested conveniently, the harvesting progress is prevented from being reduced, and meanwhile the harvesting effect is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of harvesters, and particularly relates to a straw harvester. Background Art

[0002] Straw is the general term for the stems and leaves of mature crops, usually referring to the remaining parts after harvesting the seeds of wheat, rice, corn, potatoes, rapeseed, cotton, sugarcane and other crops. Straw can be used as feed, mulch, raw materials, etc. in agricultural production and has certain utilization value. However, straw burning will produce a large amount of pollutants and have a negative impact on the environment. Therefore, straw resource utilization should be strengthened to promote the sustainable development of agricultural ecology.

[0003] Existing straw needs to be harvested by a harvester for harvesting, baling or chopping the straw of various crops, cutting, collecting or processing the stem parts of the crops to facilitate subsequent utilization or treatment. The use of a straw harvester can improve the operation efficiency, reduce the labor intensity, and also help to reduce straw waste and environmental pollution.

[0004] When the knife shaft of the existing harvesting mechanism is damaged, it needs to be replaced. However, the replacement of the existing knife shaft is relatively difficult, and the harvesting effect of the butterfly harvester cannot reach a good level. At the same time, the knife shaft is easily entangled by straw during harvesting, which will affect the replacement of the knife shaft. For this reason, we propose a straw harvester. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a straw harvester, which can facilitate the replacement of the knife shaft, is convenient for harvesting the straw of different crops, and at the same time avoids affecting the harvesting progress.

[0006] The technical solution adopted by the utility model is specifically as follows:

[0007] A straw harvester includes a mounting frame and a harvesting knife shaft. One end of the harvesting knife shaft is provided with a connecting rod, and the other end of the harvesting knife shaft is provided with a fixing sleeve. The connecting rod cooperates with the fixing sleeve to connect the harvesting knife shaft to the mounting frame.

[0008] A connecting groove is opened at one end of the harvesting knife shaft, one end of the connecting rod extends into the connecting groove, and a connecting component for connecting the harvesting knife shaft is arranged between the connecting rod and the fixing sleeve and the harvesting knife shaft. A transmission component for driving the harvesting knife shaft to rotate is arranged on the mounting frame.

[0009] An upper anti-entanglement shell and a lower anti-entanglement shell are arranged on the mounting frame. Fixing plates are arranged on one side of the upper anti-entanglement shell and the lower anti-entanglement shell. Mounting holes are opened on the fixing plates, and second bolts are arranged in the mounting holes.

[0010] Preferably, the connecting component includes a first circular through-hole opened on one side of the connecting rod. A spring is provided inside the first circular through-hole. One end of the spring is provided with a fixing block. A fixing hole is opened on one side of the connecting groove. A first threaded through-hole is opened at the other end of the harvesting knife shaft. A first bolt is provided on the fixing sleeve, and the first bolt extends into the first threaded through-hole.

[0011] Preferably, the transmission component includes a motor provided on one side of the mounting frame. The output end of the motor is connected to a first transmission shaft. One end of the first transmission shaft is provided with a first pulley. A second circular through-hole is opened on the mounting frame. A second transmission shaft is provided inside the second circular through-hole. One end of the second transmission shaft is provided with a second pulley.

[0012] Preferably, a transmission belt is provided on the first pulley and the second pulley. An activity groove is opened on one side of the second transmission shaft. One end of the connecting rod extends into the activity groove.

[0013] Preferably, a limiting groove is opened on the inner side of the activity groove. A limiting block is provided inside the limiting groove. One side of the limiting block is connected to one side of the connecting rod.

[0014] Preferably, a groove is opened on one side of the mounting frame. A bearing is provided inside the groove. A rotating shaft is provided inside the bearing. The other end of the rotating shaft is connected to one side of the fixing sleeve.

[0015] Preferably, a protective shell is provided on the mounting frame. The shape of the protective shell is L-shaped.

[0016] The technical effects achieved by the present utility model are:

[0017] In the present utility model, when installing the harvesting knife shaft, through the provided connecting rod and fixing sleeve, in cooperation with the spring, fixing block and fixing hole in the connecting component, one end of the harvesting knife shaft is fixed on the connecting rod. At the same time, the other end of the harvesting knife shaft is placed into the fixing sleeve. Through the cooperation of the first bolt and the first threaded through-hole, the other end of the harvesting knife shaft is fixed, and the harvesting knife shaft is fixedly installed on the mounting frame, thereby facilitating the replacement of the harvesting knife shaft, facilitating the harvesting of the straws of different crops, avoiding reducing the harvesting progress, and ensuring the harvesting effect at the same time.

[0018] In the present utility model, by providing a winding shell above and a winding shell below at the connection between the connecting rod, fixing sleeve and harvesting knife shaft to protect the connection, the straw is prevented from winding around the connection, avoiding affecting the disassembly and installation of the connecting component, and ensuring the normal use of the connecting component. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of the embodiment of the present utility model;

[0020] Figure 2 is a schematic cross-sectional structure diagram of an embodiment of the present utility model Figure 1 ;

[0021] Figure 3 is a schematic cross-sectional structure diagram of an embodiment of the present utility model Figure 1 from the side;

[0022] Figure 4 is a schematic diagram of a partially enlarged structure at position A in an embodiment of the present utility model Figure 2 ;

[0023] Figure 5 is a schematic diagram of a partially enlarged structure at position B in an embodiment of the present utility model Figure 2 ;

[0024] Figure 6 is a schematic diagram of a partially enlarged structure at position C in an embodiment of the present utility model Figure 3 ;

[0025] In the drawings, the list of components represented by each reference numeral is as follows:

[0026] 1. Mounting frame; 2. Harvesting knife shaft; 3. First transmission shaft; 4. Connecting groove; 5. Movable groove; 6. Connecting rod; 7. Fixing hole; 8. Fixing block; 9. Spring; 10. Fixing sleeve; 11. First bolt; 12. Second transmission shaft; 13. Bearing; 14. Limiting groove; 15. Limiting block; 16. First pulley; 17. Second pulley; 18. Transmission belt; 19. Motor; 20. Rotating shaft; 21. Protective shell; 22. Upper anti-winding shell; 23. Lower anti-winding shell; 24. Second bolt; 25. Fixing plate. Detailed implementation manners

[0027] In order to make the purpose and advantages of the present utility model clearer, the present utility model will be specifically described below in conjunction with embodiments. It should be understood that the following text only describes one or several specific implementation manners of the present utility model, and does not strictly limit the scope of protection specifically claimed by the present utility model.

[0028] As Figures 1-6 shown, a straw harvester includes a mounting frame 1 and a harvesting knife shaft 2. One end of the harvesting knife shaft 2 is provided with a connecting rod 6, and the other end of the harvesting knife shaft 2 is provided with a fixing sleeve 10. The connecting rod 6 and the fixing sleeve 10 cooperate to form a connecting and fixing member to install the harvesting knife shaft 2 on the mounting frame 1, and at the same time, it is convenient to replace the harvesting knife shaft 2;

[0029] Referring to the attached Figure 2 、 Figure 4 as well as Figure 5, wherein, a connection groove 4 is formed at one end of the harvesting knife shaft 2, one end of the connecting rod 6 extends into the connection groove 4, a first circular through hole is formed in one side of the connecting rod 6, a spring 9 is arranged in the first circular through hole, a fixing block 8 is arranged at one end of the spring 9, a fixing hole 7 is formed in one side of the connection groove 4. When installing the harvesting knife shaft 2, first press the fixing block 8 into the first circular through hole, then place one end of the connecting rod 6 in the connection groove 4, so that the spring 9 squeezes one end of the fixing block 8 into the fixing hole 7, thereby fixedly installing one end of the harvesting knife shaft 2.

[0030] Furthermore, a first threaded through hole is formed at the other end of the harvesting knife shaft 2, a first bolt 11 is arranged on the fixing sleeve 10, the first bolt 11 extends into the first threaded through hole. At the same time, place the other end of the harvesting knife shaft 2 in the fixing sleeve 10, and then screw the first bolt 11 into the first threaded through hole, thereby fixedly installing the other end of the harvesting knife shaft 2, and installing the harvesting knife shaft 2 on the mounting frame 1, so as to conveniently replace the harvesting knife shaft 2 with a suitable one according to the straw for harvesting operations.

[0031] Among them, an upper anti-winding shell 22 and a lower anti-winding shell 23 are arranged on the mounting frame 1. Fixing plates 25 are arranged on one side of both the upper anti-winding shell 22 and the lower anti-winding shell 23. Mounting holes are formed in the fixing plates 25, and second bolts 24 are arranged in the mounting holes. Through the cooperation of the second bolts 24 and the fixing plates 25, the upper anti-winding shell 22 and the lower anti-winding shell 23 are fixed on the mounting frame 1 to protect the connection part of the connecting rod 6, the fixing sleeve 10 and the harvesting knife shaft 2 from being wound by straw.

[0032] Refer to the appendix Figure 3 、 Figure 6 , wherein, a motor 19 is arranged on one side of the mounting frame 1, the output end of the motor 19 is connected with a first transmission shaft 3, a first belt pulley 16 is arranged at one end of the first transmission shaft 3, a second circular through hole is formed in the mounting frame 1, a second transmission shaft 12 is arranged in the second circular through hole, a second belt pulley 17 is arranged at one end of the second transmission shaft 12, and a transmission belt 18 is arranged on the first belt pulley 16 and the second belt pulley 17. The motor 19 drives the first transmission shaft 3 to rotate, thereby driving the first belt pulley 16 to rotate. At the same time, the second belt pulley 17 is driven to rotate through the transmission belt 18, so that the second transmission shaft 12 rotates.

[0033] Among them, a movable groove 5 is formed in one side of the second transmission shaft 12, one end of the connecting rod 6 extends into the movable groove 5. At the same time, a protective shell 21 is arranged on the mounting frame 1, the protective shell 21 is used to protect the transmission components, and the movable groove 5 is used to connect the connecting rod 6 and the second transmission shaft 12, and it is also convenient for the second transmission shaft 12 to drive the connecting rod 6 to rotate, thereby driving the harvesting knife shaft 2 to rotate to complete the harvesting operation of the straw.

[0034] Further, a groove is formed on one side of the mounting frame 1. A bearing 13 is arranged in the groove. A rotating shaft 20 is arranged in the bearing 13. The other end of the rotating shaft 20 is connected to one side of the fixed sleeve 10. The groove is used to mount the bearing 13. At the same time, the fixed sleeve 10 connects the rotating shaft 20 to the harvesting knife shaft 2. Under the action of the bearing 13, it is convenient for the transmission component to drive the harvesting knife shaft 2 to rotate.

[0035] Further, a limiting groove 14 is formed on the inner side of the movable groove 5. A limiting block 15 is arranged in the limiting groove 14. One side of the limiting block 15 is connected to one side of the connecting rod 6. At the same time, when the connecting rod 6 moves in the movable groove 5, the limiting groove 14 cooperates with the limiting block 15 to prevent the connecting rod 6 from falling off the movable groove 5, so as to facilitate the second transmission shaft 12 to drive the harvesting knife shaft 2 to rotate through the connecting rod 6.

[0036] The working principle of the present utility model is as follows: When installing the harvesting knife shaft 2, first press the fixing block 8 into the first circular through hole, and then place one end of the connecting rod 6 in the connecting groove 4, so that the spring 9 squeezes one end of the fixing block 8 into the fixing hole 7 to fix one end of the harvesting knife shaft 2. At the same time, place the other end of the harvesting knife shaft 2 in the fixed sleeve 10, and then screw the first bolt 11 into the first threaded through hole to fix the other end of the harvesting knife shaft 2, thereby installing the harvesting knife shaft 2 on the mounting frame 1. Thus, it is convenient to replace the harvesting knife shaft 2 according to the straw for harvesting operations. At the same time, the motor 19 drives the first transmission shaft 3 to rotate, and at the same time drives the first pulley 16 to rotate. At the same time, the second pulley 17 is driven to rotate through the transmission belt 18, so that the second transmission shaft 12 rotates. At the same time, the fixed sleeve 10 connects the rotating shaft 20 to the harvesting knife shaft 2. Under the action of the bearing 13, it is convenient for the transmission component to drive the harvesting knife shaft 2 to rotate. At the same time, when the harvester is working, the upper anti-winding shell 22 cooperates with the lower anti-winding shell 23 to prevent the straw from winding around the connection, so as to ensure the normal use of the connection component.

[0037] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A straw harvester, comprising a mounting frame (1) and a harvesting blade shaft (2), characterized in that: A connecting rod (6) is provided at one end of the harvesting blade shaft (2), and a fixing sleeve (10) is provided at the other end of the harvesting blade shaft (2); the connecting rod (6) cooperates with the fixing sleeve (10) to connect the harvesting blade shaft (2) to the mounting frame (1); A connecting groove (4) is formed at one end of the harvesting blade shaft (2), one end of the connecting rod (6) extends into the connecting groove (4), a connecting assembly for connecting the harvesting blade shaft (2) is provided between the connecting rod (6) and the fixing sleeve (10) and the harvesting blade shaft (2), and a transmission assembly for driving the harvesting blade shaft 2 to rotate is provided on the mounting frame (1); An upper anti-winding shell (22) and a lower anti-winding shell (23) are provided on the mounting frame (1); a fixing plate (25) is provided on one side of each of the upper anti-winding shell (22) and the lower anti-winding shell (23); a mounting hole is provided on the fixing plate (25); and a second bolt (24) is provided in the mounting hole.

2. A straw harvester according to claim 1, characterized in that: The connecting assembly comprises a first circular through hole formed on one side of the connecting rod (6), a spring (9) being arranged in the first circular through hole, a fixing block (8) being arranged at one end of the spring (9), a fixing hole (7) being arranged on one side of the connecting groove (4), a first threaded through hole being arranged at the other end of the harvesting knife shaft (2), a first bolt (11) being arranged on the fixing sleeve (10), and the first bolt (11) extending into the first threaded through hole.

3. The straw harvester according to claim 1, characterized in that: The transmission assembly comprises a motor (19) arranged on one side of the mounting frame (1); the output end of the motor (19) is connected to a first transmission shaft (3); one end of the first transmission shaft (3) is provided with a first pulley (16); a second circular through hole is opened on the mounting frame (1); a second transmission shaft (12) is arranged in the second circular through hole; and one end of the second transmission shaft (12) is provided with a second pulley (17).

4. A straw harvester according to claim 3, characterized in that: A transmission belt (18) is provided on the first pulley (16) and the second pulley (17), a movable groove (5) is provided on one side of the second transmission shaft (12), and one end of the connecting rod (6) extends into the movable groove (5).

5. The straw harvester according to claim 4, characterized in that: A limiting groove (14) is provided inside the movable groove (5), a limiting block (15) is provided inside the limiting groove (14), and one side of the limiting block (15) is connected to one side of the connecting rod (6).

6. The straw harvester according to claim 1, characterized in that: A groove is provided on one side of the mounting frame (1), a bearing (13) is provided in the groove, a rotating shaft (20) is provided in the bearing (13), and the other end of the rotating shaft (20) is connected to one side of the fixing sleeve (10).

7. The straw harvester according to claim 1, characterized in that: The mounting frame (1) is provided with a protective shell (21), and the protective shell (21) is L-shaped.

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