Field returning machine capable of achieving stepless adjustment of ground roller and harvester

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a field returning machine capable of achieving stepless adjustment of a ground roller and a harvester, the field returning machine comprises a field returning machine body, one end of the field returning machine body is used for being connected with the harvester body in a rotating mode, and ground roller installation frames are arranged on the two sides of the other end of the field returning machine body in a rotating mode. One end of each ground roller mounting frame is rotationally connected with the returning machine body, a ground roller is rotationally arranged between the other ends of the two ground roller mounting frames, the two ends of the ground roller are rotationally connected with the two ground roller mounting frames respectively, and the bottom end of the ground roller extends out of the bottoms of the ground roller mounting frames; an adjusting support is arranged above the ground roller installation frame, the adjusting support is fixedly installed on the returning machine body, and the adjusting support and the ground roller installation frame are connected through a stepless adjusting mechanism. Stepless adjustment of the height of the returning machine body above the ground is achieved, and therefore the straw smashing degree and the straw stubble height can be adjusted according to needs.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a field return machine and a harvester capable of realizing stepless adjustment of a ground roller. Background Art

[0002] After corn is harvested, a large amount of straw is produced. In order to protect the environment, the country prohibits burning straw, so the straw needs to be crushed and returned to the field. A straw returner is needed to crush the straw, but the degree of straw crushing and the height of the straw stubble in the field are related to the ground clearance of the returner. The commonly used method for controlling the height of the straw returner from the ground is to hang the returner on the harvester through a hanging chain, and adjust the length of the hanging chain to control the height of the returner from the ground. In this prior art, the returner is connected by a hanging chain. During use, due to the unevenness of the field, the returner will shake up and down, resulting in inconsistent straw crushing height. At the same time, because the hanging chain is connected in series through chain rings, when adjusting the height of the returner, each adjustment is at least the length of a chain ring, and the infinite adjustment of the returner cannot be achieved, and a certain height cannot be adjusted according to user needs, which affects the adaptability of the returner. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a field return machine and a harvester capable of realizing stepless adjustment of ground rollers, so as to realize stepless adjustment of the ground clearance of the field return machine body, and the user can arbitrarily adjust the ground clearance of the field return machine body according to the needs.

[0004] The utility model provides a technical solution to the above-mentioned technical problems as follows: a field returner capable of realizing stepless adjustment of a ground roller, comprising a field returner body, one end of the field returner body being used for rotationally connecting with a harvester body, ground roller mounting frames being rotatably provided on both sides of the other end of the field returner body, one end of the ground roller mounting frame being rotationally connected with the field returner body, a ground roller being rotatably provided between the other ends of the two ground roller mounting frames, the two ends of the ground roller being respectively rotationally connected with the two ground roller mounting frames, the bottom end of the ground roller extending out of the bottom of the ground roller mounting frame; an adjustment bracket being provided above the ground roller mounting frame, the adjustment bracket being fixedly mounted on the field returner body, and the adjustment bracket and the ground roller mounting frame being connected via a stepless adjustment mechanism.

[0005] The beneficial effects of the utility model are as follows: one end of the field return machine body is rotatably connected to the harvester body, and the other end is installed with a ground roller through a ground roller mounting frame rotatably connected to the field return machine body, and then a stepless adjustment mechanism is installed through the ground roller mounting frame and the adjustment bracket to achieve adjustment of the downward extension distance of the ground roller. Since the ground roller is used to abut against the field, the height of the field return machine body from the ground can be adjusted, thereby achieving adjustment of the straw crushing degree and the straw stubble height as needed.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the stepless adjustment mechanism includes an adjusting screw, one end of which is rotatably connected to the ground roller mounting bracket, the adjusting screw rotates with an axis parallel to the center line of the ground roller, a mounting seat is rotatably provided on the adjustment bracket, the rotation axis of the mounting seat is parallel to the center line of the ground roller, and the other end of the adjusting screw passes through and extends out of the mounting seat to be threadedly connected to the adjusting nut.

[0008] The beneficial effect of adopting the above-mentioned further scheme is: by turning the adjusting nut, the distance between the bracket and the ground roller mounting frame can be adjusted, and the height difference between the bottom end of the ground roller and the bottom end of the field return machine body can be adjusted at intervals, thereby adjusting the ground clearance of the field return machine body. Due to the stepless adjustment of the position of the nut on the screw rod, the stepless adjustment of the ground clearance of the field return machine body can be achieved.

[0009] Furthermore, a rotating seat is rotatably provided on the ground roller mounting frame, the rotating seat is rotatably connected to the ground roller mounting frame, and the rotating axis of the rotating seat is parallel to the center line of the ground roller; the end of the adjusting screw away from the mounting seat is fixedly connected to the rotating seat.

[0010] The beneficial effect of adopting the above further solution is that the provision of the rotating seat can facilitate the rotational connection between the screw rod and the ground roller mounting frame.

[0011] Furthermore, the rotating seat includes a rotating plate and a connecting plate, the rotating plate is pivotally connected to the ground roller mounting frame, and the rotating axis of the rotating plate is parallel to the center line of the ground roller, one side edge of the connecting plate is fixedly connected to one side of the rotating plate, and the adjusting screw is fixedly connected to the connecting plate.

[0012] The beneficial effect of adopting the above further solution is that the rotating seat adopts a structure in which the rotating plate and the connecting plate are fixedly connected, which facilitates the connection between the rotating seat and the screw rod.

[0013] Furthermore, a rotating shaft is fixedly provided on the side wall of the mounting seat, a rotating hole matching the rotating shaft is provided on the adjusting bracket, the axis of the rotating hole is parallel to the axis of the ground roller, and the rotating shaft is rotatably arranged in the rotating hole.

[0014] The beneficial effect of adopting the above further solution is that by fixing the rotating shaft on the side wall of the mounting seat, it is convenient to connect the rotating shaft with the adjusting bracket.

[0015] Furthermore, the stepless adjustment mechanism includes a first hydraulic rod, one end of the first hydraulic rod is pivotally connected to the ground roller mounting frame, and the other end of the first hydraulic rod is pivotally connected to the adjustment bracket.

[0016] The beneficial effect of adopting the above further scheme is: the first hydraulic rod can be used to achieve stepless adjustment of the distance between the adjustment bracket and the ground roller mounting frame, thereby achieving stepless adjustment of the ground clearance of the field return machine body.

[0017] Furthermore, an arc-shaped limit hole is provided at the place where the field return machine body is connected to the ground roller mounting frame, the center of the arc-shaped limit hole is on the axis of the ground roller mounting frame, and a limit column is provided on the ground roller mounting frame, and the limit column is slidably arranged in the arc-shaped limit hole.

[0018] The beneficial effect of adopting the above further scheme is that the arrangement of the arc-shaped limit hole and the limit column can limit the maximum distance and the minimum distance between the bottom end of the field return machine body and the bottom end of the ground roller, thereby preventing the field return machine body from directly touching the ground.

[0019] The utility model solves the above technical problems and also provides a harvester, comprising a harvester body and the above-mentioned field return machine capable of realizing stepless adjustment of a ground roller, wherein one end of the field return machine body away from the ground roller mounting frame is rotatably connected to the harvester body.

[0020] The beneficial effect of adopting the above scheme is: one end of the field returner body is rotatably connected to the harvester body, and the other end is installed with a ground roller through a ground roller mounting frame rotatably connected to the field returner body, and then a stepless adjustment mechanism is installed through the ground roller mounting frame and the adjustment bracket to achieve the adjustment of the downward extension distance of the ground roller. Since the ground roller is used to abut against the field, the height of the field returner body from the ground can be adjusted, thereby achieving the adjustment of the straw crushing degree and the straw stubble height as needed.

[0021] Furthermore, one end of the field return machine body connected to the ground roller mounting frame is connected to the harvester body through a second hydraulic rod.

[0022] The beneficial effect of adopting the above further scheme is that the setting of the second hydraulic rod can lower the body of the field returner when field return is needed, and lift the body of the field returner when field return is not needed, so as to prevent the body of the field returner and the ground roller of the harvester from touching the ground during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the second embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the third embodiment of the present utility model;

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1. Harvester body; 2. Ground roller mounting frame; 3. Ground roller; 4. Adjustment bracket; 5. Adjustment screw; 6. Mounting seat; 7. Adjustment nut; 8. Rotating seat; 8-1. Rotating plate; 8-2. Connecting plate; 9. Rotating shaft; 10. Rotating hole; 11. First hydraulic rod; 12. Arc-shaped limit hole; 13. Limit column; 14. Harvester body; 15. Second hydraulic rod. DETAILED DESCRIPTION

[0028] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0029] Embodiment 1

[0030] like Figure 1 As shown, this embodiment includes a field return machine body 1, one end of the field return machine body 1 is used for rotation connection with the harvester body 14, the cutting wheel of the field return machine is installed on the end of the field return machine body 1 away from the harvester body 14, and ground roller mounting frames 2 are rotatably provided on both sides of the other end of the field return machine body 1, and the two ground roller mounting frames 2 are symmetrically arranged, one end of the ground roller mounting frame 2 is rotationally connected to the field return machine body 1, and a ground roller 3 is rotatably provided between the other ends of the two ground roller mounting frames 2, so that the ground roller 3 can rotate relative to the field return machine body 1, and the two ends of the ground roller 3 The ends are rotatably connected to the two ground roller mounting frames 2 respectively, and the bottom ends of the ground rollers 3 extend out of the bottoms of the ground roller mounting frames 2; an adjusting bracket 4 is provided above the ground roller mounting frames 2, and the adjusting bracket 4 is fixedly mounted on the field returning machine body 1. Preferably, the adjusting bracket 4 is detachably fixedly mounted on the field returning machine body 1 by bolts to facilitate the disassembly and installation of the adjusting bracket 4; the adjusting bracket 4 and the ground roller mounting frames 2 are connected by a stepless adjusting mechanism, which is used to adjust the distance between the adjustment bracket and the end of the ground roller mounting frames 2 away from the field returning machine body 1.

[0031] In this embodiment, the stepless adjustment mechanism includes an adjusting screw 5, one end of which is rotatably connected to the ground roller mounting frame 2, and the adjusting screw 5 rotates with an axis parallel to the center line of the ground roller 3. A mounting seat 6 is rotatably provided on the adjusting bracket 4, and the rotation axis of the mounting seat 6 is parallel to the center line of the ground roller 3. The other end of the adjusting screw 5 passes through and extends out of the mounting seat 6 and is threadedly connected with the adjusting nut 7. By screwing the adjusting nut 7, the distance between the adjusting bracket 4 and the ground roller mounting frame 2 is achieved, and the height difference between the bottom end of the ground roller 3 and the bottom end of the field return machine body 1 is adjusted at intervals, thereby adjusting the ground clearance of the field return machine body 1. Due to the stepless adjustment of the position of the nut on the screw, the stepless adjustment of the ground clearance of the field return machine body 1 is achieved.

[0032] Preferably, two adjusting nuts 7 are threadedly connected to the adjusting screw 5, and the two adjusting nuts 7 are respectively arranged on both sides of the mounting seat 6, and the two adjusting nuts 7 are both in contact with the mounting seat 6, thereby limiting the adjusting screw 5 and reducing the up and down shaking of the ground roller mounting frame 2 during use.

[0033] Specifically, a rotating seat 8 is rotatably provided on the ground roller mounting frame 2, and the rotating seat 8 is rotatably connected to the ground roller mounting frame 2, and the rotation axis of the rotating seat 8 is parallel to the center line of the ground roller 3; the end of the adjusting screw 5 away from the mounting seat 6 is fixedly connected to the rotating seat 8, and the setting of the rotating seat 8 can facilitate the rotation connection between the screw and the ground roller mounting frame 2.

[0034] In this embodiment, the rotating seat 8 includes a rotating plate 8-1 and a connecting plate 8-2. The rotating plate 8-1 is pivotally connected to the ground roller mounting frame 2, and the rotating axis of the rotating plate 8-1 is parallel to the center line of the ground roller 3. Specifically, the rotating plate 8-1 is pivotally connected to the ground roller mounting frame 2 through a rotating shaft arranged parallel to the ground roller 3, one side edge of the connecting plate 8-2 is fixedly connected to one side of the rotating plate 8-1, and the adjusting screw 5 is fixedly connected to the connecting plate 8-2. The rotating seat 8 adopts a structure in which the rotating plate 8-1 and the connecting plate 8-2 are fixedly connected, which facilitates the connection between the rotating seat 8 and the screw.

[0035] A rotating shaft 9 is fixedly provided on the side wall of the mounting seat 6, and a rotating hole 10 matching the rotating shaft 9 is provided on the adjusting bracket 4. The axis of the rotating hole 10 is parallel to the axis of the ground roller 3, and the rotating shaft 9 is rotatably arranged in the rotating hole 10. By fixing the rotating shaft 9 on the side wall of the mounting seat 6, it is convenient to connect with the adjusting bracket 4 for rotation. In order to prevent the rotating shaft 9 from escaping from the rotating hole 10, a limiting mechanism can also be provided on the rotating shaft 9 to limit its axial movement. The specific structure is a conventional technical means in this field and is not described in detail here.

[0036] In this embodiment, the arc-shaped limiting hole 12 is provided at the place where the field return machine body 1 is connected to the ground roller mounting frame 2, the center of the arc-shaped limiting hole 12 is on the axis of the ground roller mounting frame 2, and the ground roller mounting frame 2 is provided with a limiting column 13, and the limiting column 13 is slidably arranged in the arc-shaped limiting hole 12. The arrangement of the arc-shaped limiting hole 12 and the limiting column 13 can limit the maximum spacing and the minimum spacing between the bottom end of the field return machine body 1 and the bottom end of the ground roller 3, so as to prevent the field return machine body 1 from directly touching the ground.

[0037] Embodiment 2

[0038] like Figure 2As shown, this embodiment includes a field return machine body 1, one end of the field return machine body 1 is used for rotation connection with the harvester body 14, the cutting wheel of the field return machine is installed on the end of the field return machine body 1 away from the harvester body 14, and ground roller mounting frames 2 are rotatably provided on both sides of the other end of the field return machine body 1, and the two ground roller mounting frames 2 are symmetrically arranged, one end of the ground roller mounting frame 2 is rotationally connected to the field return machine body 1, and a ground roller 3 is rotatably provided between the other ends of the two ground roller mounting frames 2, so that the ground roller 3 can rotate relative to the field return machine body 1, and the two ends of the ground roller 3 The ends are rotatably connected to the two ground roller mounting frames 2 respectively, and the bottom ends of the ground rollers 3 extend out of the bottoms of the ground roller mounting frames 2; an adjusting bracket 4 is provided above the ground roller mounting frames 2, and the adjusting bracket 4 is fixedly mounted on the field returning machine body 1. Preferably, the adjusting bracket 4 is detachably fixedly mounted on the field returning machine body 1 by bolts to facilitate the disassembly and installation of the adjusting bracket 4; the adjusting bracket 4 and the ground roller mounting frames 2 are connected by a stepless adjusting mechanism, which is used to adjust the distance between the adjustment bracket and the end of the ground roller mounting frames 2 away from the field returning machine body 1.

[0039] In this embodiment, the stepless adjustment mechanism includes a first hydraulic rod 11, one end of the first hydraulic rod 11 is pivoted to the ground roller mounting frame 2, and the other end of the first hydraulic rod 11 is pivoted to the adjustment bracket 4. The first hydraulic rod 11 can be used to achieve stepless adjustment of the distance between the adjustment bracket 4 and the ground roller mounting frame 2, thereby achieving stepless adjustment of the ground clearance of the field return machine body 1.

[0040] The place where the body 1 of the field return machine is connected to the ground roller mounting frame 2 is provided with an arc-shaped limiting hole 12, the center of which is on the axis of the ground roller mounting frame 2, and the ground roller mounting frame 2 is provided with a limiting column 13, which is slidably arranged in the arc-shaped limiting hole 12. The arrangement of the arc-shaped limiting hole 12 and the limiting column 13 can limit the maximum spacing and the minimum spacing between the bottom end of the field return machine body 1 and the bottom end of the ground roller 3, so as to prevent the body 1 of the field return machine from directly touching the ground.

[0041] Embodiment 3

[0042] like Figure 3 As shown, this embodiment includes a harvester body 14 and a field returner capable of realizing stepless adjustment of a ground roller 3 as described in the above-mentioned embodiment 1 or embodiment 2, wherein one end of the field returner body 1 away from the ground roller mounting frame 2 is rotatably connected to the harvester body 14, and one end of the field returner body 1 connected to the ground roller mounting frame 2 is connected to the harvester body 14 via a second hydraulic rod 15. The second hydraulic rod 15 is arranged to lower the field returner body 1 when field return is required, and to lift the field returner body 1 when field return is not required, so as to prevent the field returner body 1 and the ground roller 3 from touching the ground during the movement of the harvester.

[0043] One end of the field return machine body 1 of the utility model is rotatably connected to the harvester body 14, and the other end is installed with a ground roller 3 through a ground roller mounting frame 2 rotatably connected to the field return machine body 1, and then a stepless adjustment mechanism is installed through the ground roller mounting frame 2 and the adjustment bracket 4 to adjust the downward extension distance of the ground roller 3. Since the ground roller 3 is used to abut against the field, the height of the field return machine body 1 from the ground is adjusted, thereby adjusting the degree of straw crushing and the straw stubble height as needed.

[0044] In the description of the present invention, it should be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "inside", "outside", "peripheral", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred system or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A field return machine capable of realizing stepless adjustment of ground rollers, characterized in that: The invention comprises a field return machine body (1), one end of the field return machine body (1) is used for rotationally connecting with a harvester body (14), and ground roller mounting frames (2) are rotatably provided on both sides of the other end of the field return machine body (1), one end of the ground roller mounting frame (2) is rotationally connected with the field return machine body (1), and a ground roller (3) is rotatably provided between the other ends of the two ground roller mounting frames (2), and the two ends of the ground roller (3) are respectively rotationally connected with the two ground roller mounting frames (2), and the bottom end of the ground roller (3) extends out of the bottom of the ground roller mounting frame (2); an adjustment bracket (4) is provided above the ground roller mounting frame (2), and the adjustment bracket (4) is fixedly mounted on the field return machine body (1), and the adjustment bracket (4) and the ground roller mounting frame (2) are connected via a stepless adjustment mechanism.

2. A field returning machine capable of realizing stepless adjustment of ground rollers according to claim 1, characterized in that: The stepless adjustment mechanism comprises an adjustment screw (5), one end of which is rotatably connected to the ground roller mounting frame (2), the adjustment screw (5) rotates with an axis parallel to the center line of the ground roller (3), a mounting seat (6) is rotatably provided on the adjustment bracket (4), the rotation axis of the mounting seat (6) is parallel to the center line of the ground roller (3), and the other end of the adjustment screw (5) passes through and extends out of the mounting seat (6) to be threadedly connected with an adjustment nut (7).

3. A field returning machine capable of realizing stepless adjustment of ground rollers according to claim 2, characterized in that: A rotating seat (8) is rotatably provided on the ground roller mounting frame (2), the rotating seat (8) is rotatably connected to the ground roller mounting frame (2), and the rotating axis of the rotating seat (8) is parallel to the center line of the ground roller (3); one end of the adjusting screw (5) away from the mounting seat (6) is fixedly connected to the rotating seat (8).

4. A field returning machine capable of realizing stepless adjustment of ground rollers according to claim 3, characterized in that: The rotating seat (8) comprises a rotating plate (8-1) and a connecting plate (8-2); the rotating plate (8-1) is pivotally connected to the ground roller mounting frame (2); the rotating axis of the rotating plate (8-1) is parallel to the center line of the ground roller (3); one side edge of the connecting plate (8-2) is fixedly connected to one side of the rotating plate (8-1); and the adjusting screw (5) is fixedly connected to the connecting plate (8-2).

5. The field returning machine capable of realizing stepless adjustment of the ground roller according to claim 2, characterized in that: A rotating shaft (9) is fixedly provided on the side wall of the mounting seat (6), a rotating hole (10) matching the rotating shaft (9) is provided on the adjusting bracket (4), the axis of the rotating hole (10) is parallel to the axis of the ground roller (3), and the rotating shaft (9) is rotatably arranged in the rotating hole (10).

6. A field returning machine capable of realizing stepless adjustment of ground rollers according to claim 1, characterized in that: The stepless adjustment mechanism comprises a first hydraulic rod (11), one end of the first hydraulic rod (11) is pivotally connected to the ground roller mounting frame (2), and the other end of the first hydraulic rod (11) is pivotally connected to the adjustment bracket (4).

7. A field returning machine capable of realizing stepless adjustment of ground rollers according to any one of claims 1 to 6, characterized in that: An arc-shaped limiting hole (12) is provided at the place where the field return machine body (1) is connected to the ground roller mounting frame (2); the center of the arc-shaped limiting hole (12) is on the axis of the ground roller mounting frame (2); a limiting column (13) is provided on the ground roller mounting frame (2); and the limiting column (13) is slidably arranged in the arc-shaped limiting hole (12).

8. A harvester, characterized in that: It comprises a harvester body (14) and a field return machine capable of realizing stepless adjustment of a ground roller as described in any one of claims 1 to 7, wherein one end of the field return machine body (1) away from the ground roller mounting frame (2) is rotatably connected to the harvester body (14).

9. A harvester according to claim 8, characterized in that: One end of the field return machine body (1) connected to the ground roller mounting frame (2) is connected to the harvester body (14) via a second hydraulic rod (15).

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