Header for harvesting coarse cereals

Abstract

The utility model is applicable to the technical field of crop harvesting devices, and provides a header for harvesting coarse cereals, which comprises a frame and a cutting component arranged on the front side of the frame, two top shells arranged in bilateral symmetry are arranged on the upper side of the frame, and adjusting shells are arranged on opposite surfaces of the two top shells. Two supporting columns located between the two top shells are arranged on the rack, the interiors of the supporting columns are hollow, adjusting shafts are arranged in the supporting columns, the other ends of the adjusting shafts rotationally penetrate out of the outer surfaces of the supporting columns and are connected with the adjusting shells, and the outer surfaces of the ends, located in the supporting columns, of the adjusting shafts are sleeved with worm wheels; a worm is arranged on the lower side of the worm gear, the two ends of the worm are rotationally connected with the inner walls of the two opposite sides of the supporting column, a transmission motor is arranged on the outer surface of the supporting column, and the device can adjust the righting angle of the righting auger, so that cutting of different crops is achieved, and meanwhile the harvesting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crop harvesting devices, and more particularly to a harvesting platform for grains. Background Art

[0002] A harvester is an integrated machine for harvesting crops. It completes harvesting and threshing at one time, and concentrates the grains in a storage bin. The grains are then transported to a transport vehicle via a conveyor belt. Manual harvesting can also be done by spreading the stalks of crops such as rice and wheat in the fields, and then using grain harvesting machinery to pick up and thresh them.

[0003] The existing harvesting platform includes a harvesting platform body, a hoeing part, a cutting part, a conveying part, etc. Its operation process is that the hoeing part first pushes the crops backward to the cutting part, and at the same time, after the cutter cuts the grain, it continues to be fed into the auger, which pushes the cut grain to the middle of the harvesting platform to the feeding inlet.

[0004] The tiller part on the existing harvesting platform is a supporting auger, which is used to move the grains so that the ear picking components in the middle are closer, thereby improving the harvesting efficiency. However, the inclination angle of most existing supporting auger is fixed, and they can only harvest specific types of crops. The scope of application is narrow and the harvesting efficiency cannot be guaranteed. At the same time, the cutting efficiency of the existing harvesting platform cutting frame is not enough. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention aims to provide a harvesting platform for grains.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A harvesting platform for grains comprises a frame and a cutting assembly arranged on the front side of the frame, wherein two top shells arranged symmetrically on the left and right are provided on the upper side of the frame, and adjusting shells are provided on the opposite surfaces of the two top shells, and a supporting auger is provided on the lower side of the adjusting shell. Two support columns located between the two top shells are provided on the frame, and the interior of the support columns is hollow. An adjusting shaft is provided in the support columns, and the other end of the adjusting shaft rotates through the outer surface of the support column and is connected to the adjusting shell. A worm gear is provided on the outer surface of one end of the adjusting shaft located in the support column, and a worm is provided on the lower side of the worm gear. Both ends of the worm gear are rotatably connected to the inner walls on the opposite sides of the support column, and a transmission motor is provided on the outer surface of the support column, and the output shaft of the transmission motor rotates and passes through the support column and is connected to the worm gear.

[0008] The utility model is further configured as follows: a feeding auger is arranged in the frame, and a partition net is arranged between the two support columns.

[0009] The utility model is further configured as follows: a transmission shaft is provided in the adjusting housing, one end of the transmission shaft rotates and passes through the lower surface of the adjusting housing and is connected to the supporting auger, one end of the transmission shaft located in the adjusting housing is sleeved with a first bevel gear, the upper side of the first bevel gear is meshed and connected with a second bevel gear, a connecting shaft is provided on the side of the second bevel gear facing the top shell, the other end of the connecting shaft rotates and passes through the top shell, and a belt drive assembly is provided at one end of the connecting shaft located in the top shell.

[0010] The utility model is further configured as follows: an annular groove is provided on the surface of the top shell facing the adjusting shell, the connecting shaft is located at the center of the annular groove, an annular block is provided on the side of the adjusting shell close to the annular groove, the vertical cross-section of the annular groove is T-shaped, the other side of the annular block extends into the vertical groove through the transverse groove of the annular groove, the annular block slides in the annular groove, the annular block is located in the annular groove, and multiple connecting pulleys are provided on the inner and outer rings of the vertical groove, and the other side of the connecting pulley is in contact with the inner wall of the annular groove.

[0011] The advantages of the utility model are:

[0012] First, the utility model can adjust the righting angle of the supporting auger, thereby realizing the cutting of different crops and improving the harvesting efficiency.

[0013] Secondly, the utility model is provided with an annular groove, an annular block and a connecting pulley, so that the connecting pulley forms a supporting effect on the adjusting shell. At the same time, when the adjusting shell rotates, the connecting pulley slides in the annular groove, which reduces the friction generated when the adjusting shell rotates and further ensures the smoothness of the adjustment of the adjusting shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of a harvesting platform for grains according to the present invention;

[0015] Figure 2 This is a top plan view of the internal structure of the top shell and the adjustment shell of the utility model;

[0016] Figure 3 This is a side plan view of the internal structure of the adjustment housing of the utility model;

[0017] Figure 4 This is a cross-sectional schematic diagram of the support column of the utility model;

[0018] Figure 5 for Figure 2 Enlarged view of point A in the middle.

[0019] In the figure: 1. Frame; 2. Cutting assembly; 3. Top shell; 4. Adjustment shell; 5. Support auger; 6. Support column; 7. Partition net; 8. Feeding auger; 9. Adjustment shaft; 10. Worm gear; 11. Worm; 12. Transmission motor; 13. Transmission shaft; 14. First bevel gear; 15. Second bevel gear; 16. Connecting shaft; 17. Belt drive assembly; 18. Annular groove; 19. Annular block; 20. Connecting pulley. DETAILED DESCRIPTION

[0020] See also Figure 1-5 , the utility model provides the following technical solutions:

[0021] Specifically, it refers to a harvesting platform for grains, including a frame 1 and a cutting assembly 2 arranged on the front side of the frame 1. A feeding auger 8 is arranged in the frame 1. Two top shells 3 are arranged symmetrically on the upper side of the frame 1. Adjustment shells 4 are arranged on the opposite sides of the two top shells 3. A supporting auger 5 is arranged on the lower side of the adjustment shell 4. When in use, the crops are straightened by the supporting auger 5, and then the cutting assembly 2 pulls the stems, tears, shears and cuts the crops into pieces, and finally the feeding auger 8 transports them.

[0022] The frame 1 is provided with two support columns 6 located between the two top shells 3, and a partition net 7 is provided between the two support columns 6. The interior of the support column 6 is hollow, and an adjusting shaft 9 is provided in the support column 6. The other end of the adjusting shaft 9 rotates and passes through the outer surface of the support column 6 and is connected to the adjusting housing 4. The outer surface of one end of the adjusting shaft 9 located in the support column 6 is sleeved with a worm gear 10, and a worm 11 is provided on the lower side of the worm gear 10. The two ends of the worm gear 11 are rotatably connected to the inner walls on both sides opposite to the support column 6. A transmission motor 12 is provided on the outer surface of the support column 6, and the output shaft of the transmission motor 12 rotates and passes through the support column 6 and is connected to the worm gear 11. When in use, by starting the transmission motor 12, the output shaft of the transmission motor 12 drives the worm gear 11 to rotate, and the worm gear 11 synchronously engages and drives the worm wheel 10 to rotate. The adjusting shaft 9 rotates synchronously with the worm gear 10, and the adjusting housing 4 and the supporting auger 5 rotate synchronously. The above method can adjust the straightening angle of the supporting auger 5, thereby realizing the cutting of different crops and improving the harvesting efficiency.

[0023] A transmission shaft 13 is provided in the adjusting housing 4, one end of the transmission shaft 13 rotates and passes through the lower surface of the adjusting housing 4 and is connected to the supporting auger 5. One end of the transmission shaft 13 located in the adjusting housing 4 is sleeved with a first bevel gear 14, and the upper side of the first bevel gear 14 is meshed and connected with a second bevel gear 15. The second bevel gear 15 is provided with a connecting shaft 16 on the side facing the top shell 3, and the other end of the connecting shaft 16 rotates and passes into the top shell 3. A belt transmission assembly 17 is provided at one end of the connecting shaft 16 located in the top shell 3. The belt transmission assembly 17 is a known technology in the existing patent: CN218736060U. No further details will be given here. When in use, the connecting shaft 16 can be driven to rotate by the belt transmission assembly 17, so that the transmission shaft 13 rotates under the meshing transmission of the first bevel gear 14 and the second bevel gear 15, thereby rotating the supporting auger 5.

[0024] An annular groove 18 is provided on the surface of the top shell 3 facing the adjusting shell 4, and the connecting shaft 16 is located at the center of the annular groove 18. The vertical cross-section of the annular groove 18 is T-shaped. An annular block 19 is provided on the side of the adjusting shell 4 close to the annular groove 18. The other side of the annular block 19 extends into the vertical groove through the transverse groove of the annular groove 18. The annular block 19 is located in the annular groove 18. A plurality of connecting pulleys 20 are provided on the inner and outer rings of the vertical groove. The other side of the connecting pulley 20 contacts the inner wall of the annular groove 18, so that the connecting pulley 20 forms a supporting effect on the adjusting shell 4. At the same time, when the adjusting shell 4 rotates, the connecting pulley 20 slides in the annular groove 18, thereby reducing the friction generated when the adjusting shell 4 rotates, and further ensuring the smoothness of the adjustment of the adjusting shell 4.

[0025] The working principle of the grain harvesting cutting platform provided by the utility model is as follows: when in use, by starting the transmission motor 12, the output shaft of the transmission motor 12 drives the worm 11 to rotate, the worm 11 synchronously engages and drives the worm wheel 10 to rotate, the adjusting shaft 9 rotates synchronously with the worm wheel 10, and the adjusting housing 4 and the supporting auger 5 rotate synchronously, and at the same time the connecting pulley 20 slides in the annular groove 18.

Claims

1. A harvesting platform for grains, comprising a frame (1) and a cutting assembly (2) arranged on the front side of the frame (1), characterized in that: The upper side of the frame (1) is provided with two top shells (3) arranged in a left-right symmetrical manner, and the opposite surfaces of the two top shells (3) are provided with an adjustment shell (4), and the lower side of the adjustment shell (4) is provided with a supporting screw dragon (5). The frame (1) is provided with two support columns (6) located between the two top shells (3), the interior of the support column (6) is hollow, and an adjustment shaft (9) is provided in the support column (6), and the other end of the adjustment shaft (9) rotates through the outer surface of the support column (6) and is connected to the adjustment shell (4). The outer surface of one end of the adjustment shaft (9) located in the support column (6) is sleeved with a worm gear (10), and the lower side of the worm gear (10) is provided with a worm (11), and the two ends of the worm gear (11) are rotatably connected to the inner walls of the two opposite sides of the support column (6). A transmission motor (12) is provided on the outer surface of the support column (6), and the output shaft of the transmission motor (12) rotates through the support column (6) and is connected to the worm gear (11).

2. A harvesting header for grains according to claim 1, characterized in that: A feeding auger (8) is provided in the frame (1), and a partition net (7) is provided between the two support columns (6).

3. A harvesting header for grains according to claim 1, characterized in that: A transmission shaft (13) is provided in the regulating housing (4), and one end of the transmission shaft (13) rotates through the lower surface of the regulating housing (4) and is connected to the supporting auger (5).

4. A harvesting header for grains according to claim 3, characterized in that: One end of the transmission shaft (13) located in the adjustment housing (4) is sleeved with a first bevel gear (14), the upper side of the first bevel gear (14) is meshedly connected with a second bevel gear (15), and the side of the second bevel gear (15) facing the top housing (3) is provided with a connecting shaft (16), the other end of the connecting shaft (16) rotates and penetrates into the top housing (3), and the end of the connecting shaft (16) located in the top housing (3) is provided with a belt transmission assembly (17).

5. The harvesting header for grains according to claim 1, characterized in that: An annular groove (18) is provided on a surface of the top shell (3) facing the regulating shell (4), the connecting shaft (16) is located at the center of the annular groove (18), and an annular block (19) is provided on a side of the regulating shell (4) close to the annular groove (18).

6. A harvesting header for grains according to claim 5, characterized in that: The vertical cross-section of the annular groove (18) is T-shaped, and the other side of the annular block (19) extends into the vertical groove through the transverse groove of the annular groove (18), and the annular block (19) slides in the annular groove (18).

7. A harvesting header for grains according to claim 6, characterized in that: The annular block (19) is located on the inner and outer rings of the vertical groove of the annular groove (18), and a plurality of connecting pulleys (20) are provided. The other side of the connecting pulley (20) contacts the inner wall of the annular groove (18).

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