A maize harvester ear picking header

Abstract

The application discloses a corn picker ear picking header, which comprises a frame, an ear picking mechanism and a collecting mechanism are installed on the frame, the ear picking mechanism comprises a pair of stem pulling rollers; an auxiliary ear picking mechanism is installed between the ear picking mechanism and the collecting mechanism; the ear picking mechanism further comprises a cutter mechanism, a stem pushing wheel and a longitudinal conveying auger which are arranged correspondingly to each pair of stem pulling rollers; for one pair of stem pulling rollers, the stem pushing wheel is installed above one of the stem pulling rollers, the cutter mechanism and the longitudinal conveying auger are installed outside. In the application, the stem pushing wheel and the cutter mechanism are arranged above and on the side of the stem pulling roller respectively, and the longitudinal conveying auger is installed on the side of the cutter mechanism, so that the ear picking header can not only realize ear picking operation, but also can realize regular cutting and conveying of the corn stalks, and the subsequent collection and treatment of the broken stalks are facilitated.

Description

Technical Field

[0001] This invention relates to the field of agricultural harvesting machinery technology, and in particular to a corn harvester's ear-picking header. Background Technology

[0002] With the continuous improvement of agricultural mechanization, corn harvesters have become an indispensable piece of equipment in modern agricultural production. Traditional corn harvesters have undergone numerous improvements and upgrades in design and function, aiming to increase operational efficiency, reduce labor costs, and improve crop harvest quality. However, despite significant advancements in existing technology, most corn harvesters currently on the market still have some shortcomings in the design of their ear-picking headers, which limit their performance in practical applications.

[0003] In the prior art, patent CN 106416627A discloses a corn ear-picking cutter, which has a pair of stalk-pulling rollers and an ear-receiving device placed below the stalk-pulling rollers. The stalk-pulling rollers have an ear-folding plate below them to prevent the stalk-pulling rollers from damaging the corn ears. The prior art has the following technical problems: (1) The ear-picking cutter can only focus on ear-picking operations and is not perfect for stalk processing. This results in additional manual or mechanical operations required for subsequent collection and processing of broken stalks, increasing the complexity and cost of the operation. Furthermore, due to the lack of an effective synchronous cutting and conveying mechanism, the existing ear-picking cutter cannot ensure the consistency of the length of broken stalks, which brings inconvenience to subsequent straw processing. (2) The ear-picking cutter fails to effectively achieve rapid separation between the corn ears and stalks during the ear-picking process, often resulting in incomplete ear picking, which affects the efficiency of the operation. Moreover, the ear-folding plate can only act on the corn ears on the side of the stalks that are rolled into the stalk-pulling rollers, and cannot prevent the corn ears in front and behind from being rolled into the stalk-pulling rollers, thus having a limited effect in preventing damage. Summary of the Invention

[0004] Purpose of the invention: In order to overcome the shortcomings of the existing technology, the present invention provides a corn harvester header that can simultaneously handle corn ears and corn stalks and has high corn ear picking efficiency.

[0005] Technical solution: To achieve the above objectives, the present invention provides a corn harvester ear-picking header, which includes a frame on which an ear-picking mechanism and a collecting mechanism are mounted in an upper and lower arrangement. The ear-picking mechanism includes a pair of stalk-pulling rollers. A transverse cutting mechanism is mounted below the frame. An auxiliary ear-removing mechanism is installed between the ear-picking mechanism and the collecting mechanism. The auxiliary ear-removing mechanism includes an ear-removing plate.

[0006] The ear-picking mechanism also includes a cutting mechanism, a stem-pulling wheel, and a longitudinal conveying auger corresponding to each pair of the pulling rollers; for a pair of pulling rollers, the stem-pulling wheel is installed above one of the pulling rollers, the cutting mechanism and the longitudinal conveying auger are installed on the outside, and the cutting mechanism is located between the pulling roller and the longitudinal conveying auger.

[0007] Furthermore, the stem-pulling wheel has two end plates and a plurality of stem-pulling rollers disposed between the two end plates, all of the stem-pulling rollers being arranged in a circumferential array.

[0008] Furthermore, a transverse conveying auger mechanism is connected to the rear side of the longitudinal conveying auger.

[0009] During operation, the active rotation of the stem-pulling wheel causes the stems emerging from the wheel to deflect towards the cutting mechanism. This allows the cutting mechanism to sever the stems, which then fall into the longitudinal conveying auger and finally into the transverse conveying auger. Because the stem-pulling wheel has a relatively small number of pulling rollers, the action of these rollers on the stems is intermittent, allowing for a single cutting operation after the stems rise a certain distance. This results in a more uniform length of broken stems falling into the longitudinal conveying auger.

[0010] Furthermore, the cutting mechanism includes a fixed blade group and a moving blade group, the moving blade group being capable of reciprocating relative to the fixed blade group; the fixed blade group has multiple fixed blades arranged in a direction parallel to the axial direction of the pulling roller; the moving blade group has multiple moving blades arranged in a direction parallel to the axial direction of the pulling roller. By driving the moving blade group to reciprocate regularly, shearing operations over a relatively long range can be achieved.

[0011] Furthermore, the stem-pulling roller is rotatable relative to the end plate. This prevents stems or leaves from wrapping around the stem-pulling roller and reduces the overall rotational resistance of the stem-pulling wheel.

[0012] Furthermore, the auxiliary threshing mechanism also includes a drive box and a motion seat. The threshing plate is fixedly installed on the motion seat, and multiple threshing rods are distributedly installed on the threshing plate. The extension direction of the threshing rods forms an angle with the end face of the threshing plate.

[0013] The drive box has a guide groove for guiding the drive box, and the guide groove has an arc segment on the upper part and a straight segment on the lower part; the drive box is equipped with a drive mechanism that drives the motion seat to reciprocate along the guide groove.

[0014] The drive box has two symmetrically arranged guide slots. Correspondingly, there are also two motion seats and two de-earing plates. In the top-to-bottom direction, relative to the center of symmetry of the two guide slots, the arc segment corresponding to each guide slot gradually moves from a position away from the center of symmetry towards the center of symmetry.

[0015] Furthermore, the motion seat is equipped with two rollers that can move along the guide groove.

[0016] Furthermore, the stalk-pulling rollers have spiral patterns, and the spiral patterns on the two rollers of the same pair rotate in opposite directions. In use, the two stalk-pulling rollers rotate in opposite directions at the same speed, which allows the corn stalks to move backward while being pulled upward.

[0017] With the above structure, during harvesting, the upper end of the corn stalk enters between a pair of pulling rollers, and the transverse cutting mechanism cuts off the lower end of the corn stalk. The pulling rollers cause the corn stalk to move upward. At the same time, the moving seat reciprocates along the guide groove. When the moving seat moves along the arc segment, it can not only change the distance between the threshing plate and the threshing rod relative to the center of symmetry, but also change the posture of the threshing plate and the threshing rod. This allows the threshing assembly composed of the threshing plate and the threshing rod to switch between a yielding state and a working state. In the yielding state, the threshing rod will not obstruct the backward movement of the corn stalk. When the moving seat moves downward along the guide groove, the threshing plate moves towards the stalk. The inclination angle of the end face of the threshing plate relative to the vertical first gradually decreases and then remains unchanged, while the threshing rod intervenes between the stalks.

[0018] Furthermore, the collecting mechanism includes a conveyor belt arranged in a front-to-back direction, and a corn ear conveying auger located behind the conveyor belt, wherein the conveying direction of the corn ear conveying auger is left-to-right. Corn ears detached from the stalks fall onto the conveyor belt and are conveyed backward by the conveyor belt to the conveying trough where the corn ear conveying auger is located, where the corn ear conveying auger laterally collects the corn ears.

[0019] Beneficial effects: The corn harvester header of the present invention has the following beneficial effects:

[0020] (1) By setting up a stem-pulling wheel and a cutting mechanism above and to the side of the stem-pulling roller respectively, and installing a longitudinal conveying auger on the side of the cutting mechanism, the ear-picking cutting table of the present invention can not only realize ear-picking operations, but also realize regular cutting and conveying of corn stalks, which facilitates the subsequent collection and processing of broken stalks.

[0021] (2) The downward movement of the ear-removing component can simultaneously act on the corn ears located on the side of the stalk and in front of and behind the stalk, and impact the root of the corn ear, accelerating the separation between the corn ear and the stalk and improving the ear-removing efficiency. Attached Figure Description

[0022] Figure 1 A three-dimensional structural diagram of the ear-picking header for a corn harvester;

[0023] Figure 2A formal structural diagram of the ear-picking header for a corn harvester;

[0024] Figure 3 for Figure 1 Enlarged structural diagram of section A;

[0025] Figure 4 This is a structural diagram of the ear-picking mechanism and its surrounding parts;

[0026] Figure 5 A first-state cross-sectional view of the ear-picking mechanism and its surrounding parts;

[0027] Figure 6 A second-state cross-sectional view of the ear-picking mechanism and its surrounding parts;

[0028] Figure 7 This is a structural diagram of the auxiliary ear-removal mechanism.

[0029] In the diagram: 1-Frame; 2-Ear picking mechanism; 21-Stalk pulling roller; 21a-Spiral pattern; 3-Gathering mechanism; 31-Conveyor belt; 32-Ear conveying auger; 4-Cutting mechanism; 41-Fixed blade group; 42-Moving blade group; 5-Stalk pulling wheel; 51-End plate; 52-Stalk pulling roller; 6-Longitudinal conveying auger; 6a-Cover; 7-Transverse conveying auger mechanism; 8-Transverse cutting mechanism; 9-Auxiliary ear removal mechanism; 91-Ear removal plate; 92-Drive box; 92a-Circular arc segment; 92b-Straight line segment; 93-Moving seat; 94-Ear removal rod; 95-Roller; 10-Divider. Detailed Implementation

[0030] The invention will now be further described with reference to the accompanying drawings.

[0031] like Figure 1 and Figure 2 The corn harvester shown has a corn picking header, which includes a frame 1. The frame 1 is equipped with a picking mechanism 2 and a collecting mechanism 3 arranged in an upper and lower configuration. The picking mechanism 2 includes a pair of stalk pulling rollers 21. A transverse cutting mechanism 8 is installed below the frame 1. An auxiliary ear-removing mechanism 9 is installed between the picking mechanism 2 and the collecting mechanism 3. The auxiliary ear-removing mechanism 9 includes an ear-removing plate 91.

[0032] The ear-picking mechanism 2 also includes a cutting mechanism 4, a stem-pulling wheel 5, and a longitudinal conveying auger 6 corresponding to each pair of pulling rollers 21; such as Figure 3 and Figure 4As shown, for a pair of pulling rollers 21, a stem-pulling wheel 5 is installed above one of the pulling rollers 21, and a cutting mechanism 4 and a longitudinal conveying auger 6 are installed on the outer side, with the cutting mechanism 4 positioned between the pulling roller 21 and the longitudinal conveying auger 6; the stem-pulling wheel 5 has two end plates 51 and a plurality of stem-pulling rollers 52 positioned between the two end plates 51, all of which are arranged in a circumferential array; the longitudinal conveying auger 6 is connected to a transverse conveying auger mechanism 7 at its rear, and a cover 6a is placed above the longitudinal conveying auger 6, with a divider 10 installed on the front side of the cover 6a.

[0033] During operation, the active rotation of the stem-pulling wheel 5 causes the stems emerging from the wheel to deflect towards the cutting mechanism 4. The cutting mechanism 4 then cuts the stems, which fall into the longitudinal conveying auger 6 and finally into the transverse conveying auger 7. Because the stem-pulling wheel 5 has a relatively small number of stem-pulling rollers 52, the action of these rollers on the stems is intermittent, allowing for a single cutting operation after the stems rise a certain distance. This results in a relatively uniform length of broken stems falling into the longitudinal conveying auger 6.

[0034] Preferably, the stem-pulling roller 52 is rotatable relative to the end plate 51. This prevents stems or leaves from getting tangled on the stem-pulling roller 52 and reduces the overall rotational resistance of the stem-pulling wheel 5.

[0035] As can be seen, by setting the stalk-pulling wheel 5 and the cutting mechanism 4 above and to the side of the stalk-pulling roller 21 respectively, and installing the longitudinal conveying auger 6 on the side of the cutting mechanism 4, the ear-picking cutter of the present invention can not only realize ear-picking operations, but also realize regular cutting and conveying of corn stalks, which facilitates the subsequent collection and processing of broken stalks.

[0036] The aforementioned cutting mechanism 4 includes a fixed blade group 41 and a moving blade group 42. The moving blade group 42 is capable of reciprocating relative to the fixed blade group 41. The fixed blade group 41 has multiple fixed blades arranged in a direction parallel to the axial direction of the pulling roller 21. The moving blade group 42 has multiple moving blades arranged in a direction parallel to the axial direction of the pulling roller 21. By driving the moving blade group 42 to reciprocate regularly, a cutting operation over a relatively long range can be achieved.

[0037] The auxiliary threshing mechanism 9 further includes a drive box 92 and a motion seat 93. The threshing plate 91 is fixedly installed on the motion seat 93, and a plurality of threshing rods 94 are distributedly installed on the threshing plate 91. The extension direction of the threshing rods 94 forms an angle with the end face of the threshing plate 91. The drive box 92 has a guide groove for guiding the drive box 92. The guide groove has an arc segment 92a set at the top and a straight segment 92b set at the bottom. A drive mechanism for driving the motion seat 93 to reciprocate along the guide groove is installed inside the drive box 92.

[0038] The drive box 92 has two symmetrically arranged guide slots; correspondingly, there are also two motion seats 93 and two stalk-removing plates 91. Figure 7 As shown, the threshing rods 94 mounted on the two threshing plates 91 are staggered. In the downward direction, relative to the center of symmetry of the two guide grooves, the arc segment 92a corresponding to each guide groove gradually moves from a position away from the center of symmetry towards the center of symmetry. The motion seat 93 is equipped with two rollers 95 that can move along the guide grooves.

[0039] Preferably, the stalk-pulling roller 21 has a spiral pattern 21a, and the spiral patterns 21a on the two stalk-pulling rollers 21 of the same pair rotate in opposite directions. In use, the two stalk-pulling rollers 21 rotate in opposite directions at the same speed, which can pull the corn stalk upward while causing the corn stalk to move backward.

[0040] Using the above structure, during harvesting, the upper end of the corn stalk enters between a pair of pulling rollers 21, and the transverse cutting mechanism 8 cuts off the lower end of the corn stalk. The pulling rollers 21 cause the corn stalk to move upward. At the same time, the moving seat 93 reciprocates along the guide groove. When the moving seat 93 moves along the arc segment 92a, it can not only change the distance between the threshing plate 91 and the threshing rod 94 relative to the center of symmetry, but also change the posture of the threshing plate 91 and the threshing rod 94. This allows the threshing assembly composed of the threshing plate 91 and the threshing rod 94 to be in a yielding state (e.g., Figure 5 (as shown) and working status (such as) Figure 6 (As shown) During the switching and yielding state, both rollers 95 on the motion seat 93 are located within the arc segment 92a, and both the ear-removing plate 91 and the ear-removing rod 94 are in an inclined state. The ear-removing rod 94 does not obstruct the backward movement of the corn stalk. When the motion seat 93 moves downward along the guide groove, the ear-removing plate 91 moves towards the stalk. The angle of inclination of the end face of the ear-removing plate 91 relative to the vertical gradually decreases and then remains unchanged. At the same time, the ear-removing rod 94 intervenes between the stalks, such as... Figure 6 As shown, the downward movement of the ear-removing component can simultaneously act on the corn ears located on the sides of the stalk and in front of and behind the stalk, and impact the roots of the corn ears, accelerating the separation of the corn ears from the stalk and improving ear-removing efficiency.

[0041] Preferably, the collecting mechanism 3 includes a conveyor belt 31 arranged in a front-to-back direction, and a corn ear conveying auger 32 located behind the conveyor belt 31, wherein the conveying direction of the corn ear conveying auger 32 is left-to-right. Corn ears detached from the stalk fall onto the conveyor belt 31 and are conveyed backward by the conveyor belt 31 to the conveying trough where the corn ear conveying auger 32 is located, where the corn ear conveying auger 32 laterally conveys and collects the corn ears.

[0042] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A corn harvester header, comprising a frame (1), wherein an ear-picking mechanism (2) and a collection mechanism (3) are mounted on the frame (1) in an upper and lower arrangement, the ear-picking mechanism (2) comprising a pair of stalk-pulling rollers (21); a transverse cutting mechanism (8) is mounted below the frame (1); and an auxiliary ear-removing mechanism (9) is mounted between the ear-picking mechanism (2) and the collection mechanism (3), the auxiliary ear-removing mechanism (9) comprising an ear-removing plate (91). Its features are: The picking mechanism (2) also includes a cutting mechanism (4), a stem-pulling wheel (5), and a longitudinal conveying auger (6) corresponding to each pair of the pulling rollers (21); for a pair of pulling rollers (21), the stem-pulling wheel (5) is installed above one of the pulling rollers (21), the cutting mechanism (4) and the longitudinal conveying auger (6) are installed on the outside, and the cutting mechanism (4) is located between the pulling roller (21) and the longitudinal conveying auger (6).

2. The ear-picking header for a corn harvester according to claim 1, characterized in that, The stem-pulling wheel (5) has two end plates (51) and a plurality of stem-pulling rollers (52) placed between the two end plates (51), all of which are arranged in a circumferential array.

3. The ear-picking header for a corn harvester according to claim 2, characterized in that, The stem-pulling roller (52) is rotatable relative to the end plate (51).

4. The ear-picking header for a corn harvester according to claim 1, characterized in that, The cutting mechanism (4) includes a fixed blade group (41) and a moving blade group (42). The moving blade group (42) is capable of reciprocating relative to the fixed blade group (41). The fixed blade group (41) has a plurality of fixed blades arranged in a direction parallel to the axial direction of the stem-pulling roller (21). The moving blade group (42) has a plurality of moving blades arranged in a direction parallel to the axial direction of the stem-pulling roller (21).

5. The corn harvester header according to claim 1, characterized in that, The auxiliary threshing mechanism (9) also includes a drive box (92) and a motion seat (93). The threshing plate (91) is fixedly installed on the motion seat (93). A plurality of threshing rods (94) are distributedly installed on the threshing plate (91). The extension direction of the threshing rods (94) has an angle with the end face of the threshing plate (91). The drive box (92) has a guide groove for guiding the drive box (92), the guide groove has an arc segment (92a) provided on the upper side and a straight segment (92b) provided on the lower side; the drive box (92) is equipped with a drive mechanism that drives the motion seat (93) to reciprocate along the guide groove.

6. The ear-picking header for a corn harvester according to claim 5, characterized in that, Two rollers (95) are mounted on the motion seat (93) and are able to move along the guide groove.

7. The corn harvester header according to claim 1, characterized in that, The stem-pulling roller (21) has a spiral pattern (21a), and the spiral pattern (21a) on the two stem-pulling rollers (21) of the same pair has opposite directions of rotation.

8. The corn harvester header according to claim 1, characterized in that, The summing mechanism (3) includes a conveyor belt (31) arranged in a front-to-back direction, and also includes a fruit ear conveying auger (32) placed behind the conveyor belt (31), wherein the conveying direction of the fruit ear conveying auger (32) is left-to-right.

9. The ear-picking header for a corn harvester according to claim 1, characterized in that, All of the longitudinal conveying augers (6) are connected to the same transverse conveying auger mechanism (7) on their rear side.

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