Corn stem pulling roller, corn header and corn harvester

Abstract

The utility model relates to the technical field of corn harvesting machinery, in particular to a corn stem pulling roller, a corn header and a corn harvester, which comprise a tubular shaft, a guide cone, a rear mounting seat, a front support and a scraper blade, the front end of the tubular shaft is provided with the guide cone, the rear end of the tubular shaft is provided with the rear mounting seat, and the front support is provided with the scraper blade. The front support for supporting the tubular shaft is arranged at the front end of the tubular shaft; a plurality of scraping plates extending in the axial direction of the tubular shaft are arranged on the periphery of the tubular shaft, blades are fixedly arranged on the scraping plates, and working sawteeth are arranged on the side edges, away from the tubular shaft, of the blades. The utility model has the beneficial effects that the blade with the working sawteeth on the side edge is arranged on the scraper plate, the ear picking effect can be improved, the cut-off amount of stalks is reduced, and the stalks are effectively prevented from slipping and the stalk pulling capacity is greatly improved because the blade is arranged on the partial section of the scraper plate.

Description

Technical Field

[0001] The utility model relates to the technical field of corn harvesting machinery, in particular to a corn stalk pulling roller, a corn cutting platform and a corn harvester. Background Art

[0002] At present, there are two main structures of corn harvester stalk puller, one is blade type and the other is leaf type. Although the blade type stalk puller has high stalk pulling capacity, the stalks are easily cut off in the early stage of harvesting, which increases the workload of feeding and debris removal parts and easily leads to blockage; although the leaf type stalk puller is not easy to break the stalks, it is easy to slip when harvesting in frosty weather, which affects the stalk pulling capacity, causing the stalks to accumulate at the rear end of the stalk puller and poor stalk feeding. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a corn stalk pulling roller, a corn cutting platform and a corn harvester to solve the above problems existing in the prior art.

[0004] The utility model provides a technical solution to the above-mentioned technical problems as follows: a corn stalk pulling roller, comprising a tube shaft, a guide cone, a rear mounting seat, a front support and a scraper, the front end of the tube shaft is provided with the guide cone, the rear end of the tube shaft is installed with the rear mounting seat, the front end of the tube shaft is provided with the front support for supporting the tube shaft; a plurality of scrapers extending along the axial direction of the tube shaft are provided on the outer periphery of the tube shaft, blades are fixedly provided on the scrapers, and working serrations are provided on the sides of the blades away from the tube shaft.

[0005] The beneficial effects of the utility model are as follows: blades with working serrations on the sides of the scraper can improve the ear picking effect and reduce the amount of stem cut; since blades are arranged on partial sections of the scraper, slipping of the stems can be effectively avoided, and the stem pulling capacity is greatly improved.

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

[0007] Furthermore, the blades are arranged at the middle or rear part of the scraper in the length direction.

[0008] The beneficial effect of adopting the above further scheme is: installing the blades in the middle or rear part of the scraper in the length direction, improving the stem pulling capacity in the middle or rear part of the stem pulling roller, reducing the amount of debris discharged in the middle and rear part of the stem pulling roller, and avoiding blockage.

[0009] Furthermore, the blade is integrally and fixedly connected to the scraper.

[0010] The beneficial effect of adopting the above further solution is that the blades and the scraper are fixed in an integrated manner, which facilitates the fixed connection between the blades and the scraper.

[0011] Furthermore, the blades are welded and fixed on the scraper.

[0012] The beneficial effect of adopting the above further solution is that the blades are fixed to the scraper by welding, thereby ensuring the stability of the fixation of the blades and the scraper.

[0013] Furthermore, the scraper is provided with a fixing hole, the blade is provided with a mounting hole, and the blade is mounted on the scraper by means of bolts passing through the fixing hole and the mounting hole in sequence.

[0014] The beneficial effect of adopting the above further scheme is that the scraper and the blade are assembled and connected by bolts. When the working teeth of the blade are worn due to long-term use, the blade can be replaced as needed without replacing the entire stem pulling roller.

[0015] Furthermore, the mounting hole is a strip-shaped hole, and the length direction of the mounting hole is perpendicular to the axial direction of the tube axis.

[0016] The beneficial effect of adopting the above further scheme is that the mounting hole is a strip hole whose length direction is perpendicular to the axial direction of the tube axis. The distance between the blade and the tube axis can be adjusted according to the needs of the stem pulling effect, thereby adjusting the gap between the blade and another stem pulling roller used in conjunction.

[0017] Furthermore, a support bearing is provided between the front support and the tube shaft.

[0018] The beneficial effect of adopting the above further solution is that the provision of the support bearing facilitates the rotation of the pipe shaft relative to the front support, thereby ensuring smooth rotation of the pipe shaft.

[0019] Furthermore, the diameter of the rear end of the tube shaft is greater than the diameter of the front end thereof.

[0020] The beneficial effect of adopting the above further scheme is that the diameter of the rear end of the tube shaft is larger than the diameter of the front end, which can reduce the gap between the tube shafts in turn, gradually improve the stem pulling capacity before and after the tube shaft, and realize smooth feeding and stem pulling.

[0021] The utility model solves the above technical problem and further provides a corn cutting platform, comprising the above-mentioned corn stem pulling roller.

[0022] The beneficial effect of adopting the above scheme is: arranging blades with working serrations on the sides of the scraper can improve the ear picking effect of the cutting table and reduce the amount of stems cut. Since the blades are arranged on partial sections of the scraper, the stems can be effectively prevented from slipping and the stem pulling ability can be greatly improved.

[0023] The utility model solves the above technical problem and further provides a corn harvester, comprising the above-mentioned corn cutting platform.

[0024] The beneficial effect of adopting the above scheme is: arranging blades with working serrations on the sides of the scraper can improve the ear picking effect of the harvester and reduce the amount of stems cut. Since the blades are arranged on partial sections of the scraper, the stems can be effectively prevented from slipping and the stem pulling capacity can be greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the two stem pulling rollers in the first embodiment of the utility model after being assembled together;

[0026] Figure 2 It is a schematic diagram of the two stem pulling rollers in the second embodiment of the utility model after being assembled;

[0027] Figure 3 This is a schematic diagram of the two stem pulling rollers in the third embodiment of the present utility model after being assembled together;

[0028] Figure 4 This is a schematic diagram of the structure of the blade in the fourth embodiment of the utility model;

[0029] Figure 5 It is a cross-sectional view of two stem pulling rollers after being assembled in the embodiment of the utility model;

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 1. Pipe shaft; 2. Guide cone; 3. Rear mounting seat; 4. Front support; 5. Scraper; 6. Blade; 7. Working sawtooth; 8. Fixing hole; 9. Mounting hole; 10. Support bearing. DETAILED DESCRIPTION

[0032] 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.

[0033] Embodiment 1

[0034] like Figure 1 As shown, this embodiment includes a tube shaft 1, a guide cone 2, a rear mounting seat 3, a front support 4 and a scraper 5. The front end of the tube shaft 1 is provided with the guide cone 2, which is a spiral guide cone. The guide cone 2 is connected to the tube shaft 1 through an elastic pin (the specific mounting structure is the prior art in the field and is not described in detail here). The rear end of the tube shaft 1 is installed with the rear mounting seat 3, the front end of the tube shaft 1 is provided with the front support 4 for supporting the tube shaft 1, and a support bearing 10 is provided between the front support 4 and the tube shaft 1; a plurality of scrapers 5 extending along the axial direction of the tube shaft 1 are provided on the outer periphery of the tube shaft 1, and blades 6 are fixedly provided on the scrapers 5, and working serrations 7 are provided on the side of the blades 6 away from the tube shaft 1.

[0035] In this embodiment, the diameter of the rear end of the tube shaft 1 is larger than the diameter of the front end. The diameter of the rear end of the tube shaft 1 is larger than the diameter of the front end. The gap between the tube shafts 1 can be reduced in sequence, and the stem pulling capacity before and after the tube shaft 1 can be gradually improved to achieve smooth feeding and stem pulling.

[0036] In this embodiment, the scraper 5 is provided with a fixing hole 8, and the blade 6 is provided with a mounting hole 9. The blade 6 is installed on the scraper 5 by bolts passing through the fixing hole 8 and the mounting hole 9 in sequence. The scraper 5 and the blade 6 are assembled and connected by bolts. When the working serrations 7 of the blade 6 are worn due to long-term use, the blade 6 can be replaced as needed without replacing the entire stem pulling roller.

[0037] In this embodiment, the spiral ribs on the guide cones 2 in the two stem pulling rollers assembled together have opposite rotation directions, and the spiral lines are staggered by 180 degrees, and the positions of the blades 6 in the two stem pulling rollers are staggered and aligned.

[0038] like Figure 5 As shown, in this embodiment, the scraper 5 is of a U-shaped structure, the bottom of the scraper 5 is fixedly mounted on the pipe shaft 1 by bolts, and the two side walls of the scraper 5 are respectively connected to the side walls of two adjacent scrapers 5. With this structure, on the one hand, the strength of the scraper 5 pulling stem can be ensured, and on the other hand, the scraper 5 can be fixedly mounted on the pipe shaft 1, so as to facilitate the replacement of a single scraper 5.

[0039] In this embodiment, the blade 6 can be installed at the rear section or the middle section of the scraper 5 according to the needs of use.

[0040] Embodiment 2

[0041] like Figure 2 As shown, this embodiment includes a tube shaft 1, a guide cone 2, a rear mounting seat 3, a front support 4 and a scraper 5. The front end of the tube shaft 1 is provided with the guide cone 2, which is a spiral guide cone. The guide cone 2 is connected to the tube shaft 1 through an elastic pin (the specific mounting structure is the prior art in the field and is not described in detail here). The rear end of the tube shaft 1 is installed with the rear mounting seat 3, the front end of the tube shaft 1 is provided with the front support 4 for supporting the tube shaft 1, and a support bearing 10 is provided between the front support 4 and the tube shaft 1; a plurality of scrapers 5 extending along the axial direction of the tube shaft 1 are provided on the outer periphery of the tube shaft 1, and blades 6 are fixedly provided on the scrapers 5, and working serrations 7 are provided on the side of the blades 6 away from the tube shaft 1.

[0042] In this embodiment, the diameter of the rear end of the tube shaft 1 is larger than the diameter of the front end. The diameter of the rear end of the tube shaft 1 is larger than the diameter of the front end. The gap between the tube shafts 1 can be reduced in sequence, and the stem pulling capacity before and after the tube shaft 1 can be gradually improved to achieve smooth feeding and stem pulling.

[0043] In this embodiment, the blade 6 is integrally fixedly connected to the scraper 5 , and the blade 6 is arranged at the rear of the scraper 5 .

[0044] like Figure 5 As shown, in this embodiment, the scraper 5 is of a U-shaped structure, the bottom of the scraper 5 is fixedly mounted on the pipe shaft 1 by bolts, and the two side walls of the scraper 5 are respectively connected to the side walls of two adjacent scrapers 5. With this structure, on the one hand, the strength of the scraper 5 pulling stem can be ensured, and on the other hand, the scraper 5 can be fixedly mounted on the pipe shaft 1, so as to facilitate the replacement of a single scraper 5.

[0045] Embodiment 3

[0046] like Figure 3 As shown, this embodiment includes a tube shaft 1, a guide cone 2, a rear mounting seat 3, a front support 4 and a scraper 5. The front end of the tube shaft 1 is provided with the guide cone 2, which is a spiral guide cone. The guide cone 2 is connected to the tube shaft 1 through an elastic pin (the specific mounting structure is the prior art in the field and is not described in detail here). The rear end of the tube shaft 1 is installed with the rear mounting seat 3, the front end of the tube shaft 1 is provided with the front support 4 for supporting the tube shaft 1, and a support bearing 10 is provided between the front support 4 and the tube shaft 1; a plurality of scrapers 5 extending along the axial direction of the tube shaft 1 are provided on the outer periphery of the tube shaft 1, and blades 6 are fixedly provided on the scrapers 5, and working serrations 7 are provided on the side of the blades 6 away from the tube shaft 1.

[0047] In this embodiment, the diameter of the rear end of the tube shaft 1 is larger than the diameter of the front end. The diameter of the rear end of the tube shaft 1 is larger than the diameter of the front end. The gap between the tube shafts 1 can be reduced in sequence, and the stem pulling capacity before and after the tube shaft 1 can be gradually improved to achieve smooth feeding and stem pulling.

[0048] In this embodiment, the blade 6 is integrally fixedly connected to the scraper 5 , and the blade 6 is arranged in the middle of the scraper 5 .

[0049] like Figure 5 As shown, in this embodiment, the scraper 5 is of a U-shaped structure, the bottom of the scraper 5 is fixedly mounted on the pipe shaft 1 by bolts, and the two side walls of the scraper 5 are respectively connected to the side walls of two adjacent scrapers 5. With this structure, on the one hand, the strength of the scraper 5 pulling stem can be ensured, and on the other hand, the scraper 5 can be fixedly mounted on the pipe shaft 1, so as to facilitate the replacement of a single scraper 5.

[0050] Embodiment 4

[0051] like Figure 4As shown, this embodiment makes the following improvements on the basis of the first embodiment: the mounting hole 9 is a strip hole, and the length direction of the mounting hole 9 is perpendicular to the axial direction of the tube axis 1. The mounting hole 9 is a strip hole whose length direction is perpendicular to the axial direction of the tube axis 1, and the distance between the blade 6 and the tube axis 1 can be adjusted according to the needs of the stem pulling effect, thereby adjusting the gap between the blade 6 and another stem pulling roller used in conjunction.

[0052] In addition to the above embodiments of the present invention, the blade 6 can also be fixedly mounted on the scraper 5 by welding to ensure the stability of the fixed connection between the blade 6 and the scraper 5 .

[0053] Embodiment 5

[0054] This embodiment discloses a corn cutting platform, including a corn stalk pulling roller described in the above embodiment.

[0055] Embodiment 6

[0056] This embodiment discloses a corn harvester, including the corn cutting platform described in the fifth embodiment.

[0057] The utility model arranges blades 6 with working saw teeth 7 on the side of the scraper 5, which can improve the ear picking effect and reduce the amount of stem cutting. Since the blades 6 are arranged on part of the scraper 5, the stems can be effectively prevented from slipping, and the stem pulling ability is greatly improved.

[0058] 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.

[0059] In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0060] 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.

[0061] 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.

[0062] 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 shall be included in the protection scope of the present invention.

Claims

1. A corn stalk pulling roller, characterized in that: The invention comprises a tube shaft (1), a guide cone (2), a rear mounting seat (3), a front support seat (4) and a scraper (5); the guide cone (2) is arranged at the front end of the tube shaft (1); the rear end of the tube shaft (1) is mounted with the rear mounting seat (3); the front end of the tube shaft (1) is provided with the front support seat (4) for supporting the tube shaft (1); a plurality of scrapers (5) extending along the axial direction of the tube shaft (1) are arranged on the outer periphery of the tube shaft (1); blades (6) are fixedly arranged on the scrapers (5); and working saw teeth (7) are arranged on the side of the blades (6) away from the tube shaft (1).

2. A corn stalk pulling roller according to claim 1, characterized in that: The blade (6) is arranged at the middle or rear part of the scraper (5) in the length direction.

3. A corn stalk pulling roller according to claim 1, characterized in that: The blade (6) is integrally and fixedly connected to the scraper (5).

4. The corn stalk pulling roller according to claim 1, characterized in that: The blade (6) is welded and fixed on the scraper (5).

5. The corn stalk pulling roller according to claim 1, characterized in that: The scraper (5) is provided with a fixing hole (8), the blade (6) is provided with a mounting hole (9), and the blade (6) is mounted on the scraper (5) by means of bolts which pass through the fixing hole (8) and the mounting hole (9) in sequence.

6. A corn stalk pulling roller according to claim 5, characterized in that: The mounting hole (9) is a strip-shaped hole, and the length direction of the mounting hole (9) is perpendicular to the axial direction of the tube axis (1).

7. The corn stalk pulling roller according to claim 1, characterized in that: A support bearing (10) is provided between the front support (4) and the tubular shaft (1).

8. A corn stalk pulling roller according to any one of claims 1 to 7, characterized in that: The diameter of the rear end of the tube shaft (1) is greater than the diameter of the front end thereof.

9. A corn cutting platform, characterized in that: It comprises a corn stalk pulling roller as described in any one of claims 1 to 8.

10. A corn harvester, characterized in that: The invention comprises a corn head as claimed in claim 9.

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