A foldable corn combine harvester forced feeding header

Abstract

A foldable corn combine harvester forced feeding header, wherein the left foldable header and the right foldable header are respectively hinged to the flip supports at the two ends of the upper part of the middle header frame through the flip hinge seats at the inner ends of the upper parts of the left and right header frames; one end of the foldable oil cylinder is hinged to the oil cylinder connecting seat in the middle of the middle header frame, and the other end is hinged to the hinge hole at the upper end of the foldable arm, the lower end of the foldable arm is hinged to the hinge hole at the end of the middle header frame, one end of the connecting arm is hinged to the hinge hole at the upper end of the foldable arm, and the other end is hinged to the hinge holes at the ends of the left and right header frames; elastic couplings are provided at the ends of the input shafts of the ear picking boxes and the conveying auger of the left and right foldable headers and the output shafts of the ear picking boxes and the conveying auger of the middle header; a cutting knife and a forced feeding wheel are provided at the front end of the stem pulling roller of the harvester header, and the forced feeding wheel is installed above the cutting knife, and the cutting knife and the forced feeding wheel share the same transmission system with the rice-pulling chain in the harvester header.

Description

Technical Field

[0001] The invention relates to a corn harvester header, in particular to a foldable corn combine harvester forced feeding header. Background Art

[0002] With the gradual transfer of rural land, large-scale and efficient harvesting machinery has become the mainstream of market demand. However, the roads in rural fields are still narrow, and the harvesting platforms of large corn harvesters are very wide. When moving to another place, the harvesting platform must be removed first, towed by the harvester, and then reattached to the harvesting site before harvesting can begin. This is not only labor-intensive and time-consuming, but also quite troublesome to operate. In particular, the forced feeding system makes it difficult to fold the harvesting platform. Summary of the invention

[0003] The purpose of the present invention is to overcome the above shortcomings and provide a foldable corn combine harvester forced feeding header, which mainly includes a left foldable header (1), a middle header (2), a folding mechanism (3) and a right foldable header (4), and is characterized in that: the left foldable header (1) and the right foldable header (4) are installed on the left and right sides of the middle header (2), and they are respectively hinged to the flip supports (22) at the two ends of the upper part of the middle header frame through the flip hinges (19) at the inner ends of the upper parts of the left and right header frames; the folding mechanism (3) mainly includes A folding oil cylinder (31), a folding arm (32), and a connecting arm (33), wherein one end of the folding oil cylinder (31) is hinged to an oil cylinder connecting seat (24) in the middle of the intermediate header frame (21), and the other end is hinged to a hinge hole at the upper end of the folding arm (32), the lower end of the folding arm (32) is hinged to a hinge hole at the end of the intermediate header frame (21), one end of the connecting arm (33) is hinged to the hinge hole at the upper end of the folding arm (32), and the other end is hinged to the hinge holes at the ends of the left and right header frames; between the left and right header frames and the intermediate header frame (2 1) is provided with a positioning pin (17), and at the same time, a positioning sleeve (28) is also provided at the corresponding position on the end surface of the middle cutting platform frame (21) that is connected with the left and right cutting platform frames; an elastic coupling (16) is provided at the end of the input shaft of the ear picking box and the conveying auger of the left folding cutting platform (1) and the right folding cutting platform (4) and the output shaft of the ear picking box and the conveying auger of the middle cutting platform (2), and the elastic coupling (16) mainly includes a telescopic flange (161) and a compression spring (162), and the telescopic flange (161) and the input shaft The input shaft and the output shaft are connected by a spline, the telescopic flange (161) can slide left and right on the input shaft and the output shaft, the compression spring (162) is installed on the inner side of the telescopic flange (161), and the outer end surface of the telescopic flange (161) is provided with a boss and a groove; a cutting knife (15) and a forced feeding wheel (14) are provided at the front end of the stem pulling roller of the harvester's cutting table, the forced feeding wheel (14) is installed above the cutting knife (15), and the cutting knife (15) and the forced feeding wheel (14) share the same transmission system with the straw pulling chain in the harvester's cutting table.

[0004] The positive effects of the present invention: through the above mechanism, the present invention realizes the rapid folding and unfolding of the cutting table of the corn harvester, eliminating the complicated intermediate link of first taking off the cutting table when the large corn harvester is transferred, being towed by the harvester, and then re-attaching it to the harvesting site before starting the harvest, which saves labor and time, is fast and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] The present invention will be further described with reference to the embodiments in the accompanying drawings:

[0006] Figure 1 It is a schematic structural diagram of the forced feeding header of the foldable corn combine harvester of the present invention when it is unfolded.

[0007] Figure 2 The diagram is a schematic structural diagram of the forced feeding header of the foldable corn combine harvester of the present invention when it is folded.

[0008] Figure 3 It is a structural schematic diagram of the left folding header in the present invention.

[0009] Figure 4 It is a schematic diagram of the structure of the elastic coupling in the present invention.

[0010] Figure 5 It is a structural schematic diagram of the intermediate header in the present invention.

[0011] Figure 6 It is a structural schematic diagram of the folding mechanism in the present invention.

[0012] Figure 7 It is a schematic structural diagram of the forced feeding wheel in the present invention in a folded state. DETAILED DESCRIPTION

[0013] A foldable corn combine harvester forced feeding header mainly comprises a left foldable header (1), a middle header (2), a folding mechanism (3) and a right foldable header (4). The specific implementation is as follows:

[0014] 1. A left folding cutting platform (1) and a right folding cutting platform (4) are installed on the left and right sides of the middle cutting platform (2), and are respectively hinged to the flip supports (22) at the two ends of the upper part of the middle cutting platform frame through the flip hinge seats (19) at the inner ends of the upper parts of the left and right cutting platform frames; the folding mechanism (3) mainly comprises a folding cylinder (31), a folding arm (32), and a connecting arm (33); one end of the folding cylinder (31) is hinged to the cylinder connecting seat (24) in the middle part of the middle cutting platform frame (21), and the other end is hinged to the hinge hole at the upper end of the folding arm (32); the lower end of the folding arm (32) is hinged to the hinge hole at the end of the middle cutting platform frame (21); one end of the connecting arm (33) is hinged to the hinge hole at the upper end of the folding arm (32), and the other end is hinged to the hinge holes at the ends of the left and right cutting platform frames. When the field is transferred, the folding oil cylinder (31) is retracted inwards and drives the left folding cutting platform (1) and the right folding cutting platform (4) to turn inwards around the hinge point on the turning support (22) through the folding arm (32) and the connecting arm (33) (see Figure 2 ), thereby effectively shortening the outer width of the harvesting header, ensuring that the harvester can travel conveniently and safely on the road. During harvesting, the folding cylinder (31) extends outward and drives the left folding header (1) and the right folding header (4) to flip outward around the hinge point on the flip support (22) through the folding arm (32) and the connecting arm (33) (see Figure 1) thereby effectively increasing the harvesting width of the harvesting header. Positioning pins (17) are provided on the end surfaces where the left and right header frames are joined to the middle header frame (21), and positioning sleeves (28) are also provided at corresponding positions on the end surfaces where the two ends of the middle header frame (21) are joined to the left and right header frames; the positioning pins (17) and the positioning sleeves (28) cooperate with each other to ensure that the left folding header (1) and the right folding header (4) can be correctly joined to the middle header (2) when unfolded. An elastic coupling (16) is provided at the end of the input shaft of the ear picking box and the conveying auger of the left folding cutting platform (1) and the right folding cutting platform (4) and the output shaft of the ear picking box and the conveying auger of the middle cutting platform (2). The elastic coupling (16) mainly comprises a telescopic flange (161) and a compression spring (162). The telescopic flange (161) is connected to the input shaft and the output shaft through a spline. The telescopic flange (161) can slide left and right on the input shaft and the output shaft. The compression spring (162) is installed on the inner side of the telescopic flange (161). A boss and a groove are provided on the outer end surface of the telescopic flange (161) (see Figure 3 , Figure 4 ); when the left folding cutting platform (1) and the right folding cutting platform (4) are turned outward to open for harvesting operation, the bosses and grooves on the outer end surfaces of the telescopic flanges of the input shaft and the output shaft that are paired for transmission cooperate with each other to transmit power. If the bosses and grooves on the outer end surfaces of the two telescopic flanges are not completely aligned when unfolding, the telescopic flanges (161) slide inward to make way, and the compression springs (162) inside the telescopic flanges (161) are compressed to ensure that the left and right folding cutting platforms can be smoothly and correctly engaged with the middle cutting platform (2) when unfolding; during operation, as the output shaft rotates, when the bosses on the outer end flanges of the output shaft rotate to correspond to the grooves on the outer end flanges of the output shaft, the telescopic flanges (161) slide outwards under the action of the compression springs (162), and the bosses and grooves on the two flanges cooperate with each other to transmit power. A cutting knife (15) and a forced feeding wheel (14) are provided at the front end of the stem pulling roller of the harvester's cutting table. The forced feeding wheel (14) is installed above the cutting knife (15). The cutting knife (15) and the forced feeding wheel (14) share the same transmission system with the straw pulling chain in the harvester's cutting table (see Figure 1 , Figure 3 , Figure 5 The ear picking box drives the cutting knife (15) and the forced feeding wheel (14) to rotate through the rice-pulling chain, the forced feeding wheel (14) first holds the corn stalks, the cutting knife (15) cuts the corn stalks from the roots, and then the forced feeding wheel (14) forcefully feeds the corn stalks into the working channels of the two ear picking rollers for ear picking.

[0015] 2. The foldable corn combine harvester forced feeding header, in order to further reduce the space size of the header in the folded state, can also make the forced feeding wheel (14) foldable, and the folding angle position can be adjusted in multiple levels. The lower end of the forced feeding wheel (14) support tube is hinged to the support point at the front end of the support frame (20), and a support rod (13) is installed behind the forced feeding wheel (14). The structure of the support rod (13) can be a folding support rod, a telescopic support rod, an adjustment screw rod, an oil cylinder, an air cylinder, an air spring, etc. The lower end of the support rod (13) is hinged to the support point at the rear end of the support frame (20), and the upper end of the support rod (13) is hinged to the hinge point at the upper end of the forced feeding wheel (14) support tube (see Figure 3 , Figure 5 , Figure 7 When folding is required, the support rod (13) is folded or shortened, and the forced feeding wheel (14) is rotated and folded backward and downward around the support point at the front end of the support frame (20) (see Figure 7 ), thereby further reducing the space size of the header in the folded state, when operation is required, the support rod (13) is unfolded or extended, and the forced feeding wheel (14) is rotated upward around the support point at the front end of the support frame (20) and unfolded (see Figure 3 , Figure 5 ), a plurality of adjustment holes may also be provided at the upper ends of the support rod (13) and the support tube of the forced feeding wheel (14); the adjustment holes may be provided on one of the support rod (13) and the support tube of the forced feeding wheel (14), or both of them may be provided at the same time; the support rod (13) and the support tube of the forced feeding wheel (14) are connected through different adjustment holes, so that the angle and position of the forced feeding wheel (14) can be adjusted in multiple levels.

[0016] 3. The forced feeding header of the foldable corn combine harvester has an elastic coupling (16) only at the end of one of the input shafts in the left foldable header (1) and the right foldable header (4) and the output shaft in the middle header (2) that are paired for transmission, and the end of the other shaft is directly fixed with a flange that cannot slide left and right on the shaft. The elastic coupling (16) can be arranged at the end of the output shaft in the middle header (2) or at the end of the input shaft in the left and right foldable headers. When the elastic coupling (16) is arranged at the end of the output shaft in the middle cutting platform (2), the telescopic flanges at the ends of the input shafts in the left and right folding cutting platforms are fixedly mounted on the ends of the shafts. If the bosses and grooves on the outer end surfaces of the two flanges are not completely aligned when unfolding, the telescopic flange (161) at the end of the output shaft in the middle cutting platform (2) slides inwards to make way, and the compression spring (162) inside the telescopic flange (161) at the end of the output shaft in the middle cutting platform (2) is compressed to ensure that the left and right folding cutting platforms can smoothly and correctly engage with the middle cutting platform (2) when unfolding. During operation, as the output shaft rotates, when the boss on the outer end flange of the output shaft rotates to correspond to the groove on the outer end flange of the input shaft, the telescopic flange (161) at the end of the output shaft in the middle cutting platform (2) slides outwards under the action of the compression spring (162), and the bosses and grooves on the two flanges cooperate with each other to transmit power. When the elastic coupling (16) is arranged at the end of the input shaft in the left and right folding cutting platforms, the telescopic flange at the end of the output shaft in the middle cutting platform (2) is fixedly installed at the shaft end. If the bosses and grooves on the outer end surfaces of the two flanges are not completely aligned when unfolding, the shrink flange (161) at the end of the input shaft in the left and right folding cutting platforms slides inwards to make way, and the compression spring (162) inside the telescopic flange (161) at the end of the input shaft in the left and right folding cutting platforms is compressed to ensure that the left and right folding cutting platforms can be smoothly and correctly engaged with the middle cutting platform (2) when unfolding; during operation, as the output shaft rotates, when the boss on the outer end flange of the output shaft rotates to correspond to the groove on the outer end flange of the input shaft, the telescopic flange (161) at the end of the input shaft in the left and right folding cutting platforms slides outwards under the action of the compression spring (162), and the bosses and grooves on the two flanges cooperate with each other to transmit power.

[0017] 4. The forced feeding header of the foldable corn combine harvester can also be configured to cancel one of the left foldable header (1) and the right foldable header (4) according to different requirements, and only retain the foldable header on one side.

[0018] 5. The forced feeding cutting table of the foldable corn combine harvester can solve the problem of crushing and returning wide-width corn stalks to the field by providing a chopping roller under each set of stem pulling rollers on the harvester cutting table. The corn stalks pulled down by the stem pulling rollers are chopped by the chopping rollers and directly returned to the field.

Claims

1. A foldable corn combine harvester forced feeding header, which mainly comprises a left foldable header (1), a middle header (2), a folding mechanism (3) and a right foldable header (4), characterized in that: The left folding cutting platform (1) and the right folding cutting platform (4) are installed on the left and right sides of the middle cutting platform (2), and are respectively hinged to the flip supports (22) at the two ends of the upper part of the middle cutting platform frame through the flip hinge seats (19) at the inner ends of the upper parts of the left and right cutting platform frames; the folding mechanism (3) mainly includes a folding cylinder (31), a folding arm (32), and a connecting arm (33); one end of the folding cylinder (31) is hinged to the cylinder connecting seat (24) in the middle of the middle cutting platform frame (21) The other end is hinged to the hinge hole at the upper end of the folding arm (32), the lower end of the folding arm (32) is hinged to the hinge hole at the end of the middle header frame (21), one end of the connecting arm (33) is hinged to the hinge hole at the upper end of the folding arm (32), and the other end is hinged to the hinge holes at the ends of the left and right header frames; a positioning pin (17) is provided on the end surface where the left and right header frames are connected to the middle header frame (21), and at both ends of the middle header frame (21) connected to the left and right header frames A positioning sleeve (28) is also provided at a corresponding position on the end surface of the frame where the two ends are connected; an elastic coupling (16) is provided at the end of the input shaft of the left folding cutting platform (1) and the right folding cutting platform (4) and the output shaft of the picking box and the conveying auger of the middle cutting platform (2), the elastic coupling (16) mainly includes a telescopic flange (161) and a compression spring (162), the telescopic flange (161) is connected to the input shaft and the output shaft through a spline, and the telescopic flange (161) The invention can slide left and right on the input shaft and the output shaft, and the compression spring (162) is installed on the inner side of the telescopic flange (161), and the outer end surface of the telescopic flange (161) is provided with a boss and a groove; a cutting knife (15) and a forced feeding wheel (14) are provided at the front end of the stem pulling roller of the harvester's cutting table, and the forced feeding wheel (14) is installed above the cutting knife (15), and the cutting knife (15) and the forced feeding wheel (14) share the same transmission system with the straw pulling chain in the harvester's cutting table.

2. The foldable corn combine harvester forced feeding header according to claim 1, characterized in that: The forced feeding wheel (14) is foldable, the lower end of the forced feeding wheel (14) support tube is hinged to the support point at the front end of the support frame (20), a support rod (13) is installed behind the forced feeding wheel (14), the lower end of the support rod is hinged to the support point at the rear end of the support frame (20), and the upper end of the support rod (13) is hinged to the hinge point at the upper end of the forced feeding wheel (14) support tube.

3. The foldable corn combine harvester forced feeding header according to claim 2, characterized in that: A plurality of adjustment holes are arranged on the upper ends of the support rod (13) and the support pipe of the forced feeding wheel (14).

4. The foldable corn combine harvester forced feeding header according to any one of claims 1 to 3, characterized in that: For the input shafts in the paired transmission left folding header (1) and right folding header (4) and the output shaft in the middle header (2), only one end thereof is provided with an elastic coupling (16), and the end of the other shaft is directly fixed with a mounting flange.

5. The foldable corn combine harvester forced feeding header according to any one of claims 1 to 3, characterized in that: One of the left folding header (1) and the right folding header (4) is cancelled, and only the folding header on one side is retained.

6. The foldable corn combine harvester forced feeding header according to claim 4, characterized in that: One of the left folding header (1) and the right folding header (4) is cancelled, and only the folding header on one side is retained.

7. The foldable corn combine harvester forced feeding header according to any one of claims 1, 2, 3 and 6, characterized in that: A chopping roller knife is provided below each set of stem pulling rollers on the harvester's header.

8. The foldable corn combine harvester forced feeding header according to claim 4, characterized in that: A chopping roller knife is provided below each set of stem pulling rollers on the harvester's header.

9. The foldable corn combine harvester forced feeding header according to claim 5, characterized in that: A chopping roller knife is provided below each set of stem pulling rollers on the harvester's header.

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