Novel ear picking device and corn harvester
By designing a new type of ear picking device, including a rack, stem pulling roller, rear grass cutting knife and front grass cutting knife, the positional relationship and structural design of key components are optimized, and the problems of increased debris and blockage in the plate corn harvester are solved, achieving efficient operation and safe operation.
Patent Information
- Application Number
- CN202420605346.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-27
AI Technical Summary
The debris (straw and bracts) brought in by the plate corn harvester on the cutting table increases, resulting in occasional straw blockage at the back end, and the working device needs to be frequently adjusted to reduce operating efficiency.
A new type of ear picking device is designed, including a frame, stem pulling roller, a back-grass cutting knife and a front-grass cutting knife. By optimizing the positional relationship and structural design of key components, it can effectively cut and remove straw and weeds to avoid clogging of the ears.
Through the optimized design, the problems of poor feeding of fruit ears and straw blocking at the back end are reduced, the operating efficiency is improved, and the risks of cutting table maintenance and the occurrence of personal injury accidents are reduced.
Smart Images
Figure CN222564425U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of corn harvesters, in particular to a novel ear picking device and a corn harvester. Background Art
[0002] Corn harvesters are widely used in corn harvesting operations. Plate-type corn harvesters are favored by operators and users for their wide adaptability, long operation time, and low grain loss. However, compared with roller-type corn harvesters, plate-type harvesters bring more debris (straw and husks) from the header into the machine body, and the rear end is occasionally blocked by straw. In order to reduce the entry of debris and blockage, the working device needs to be adjusted frequently during use, which brings many changes to users and reduces operating efficiency.
[0003] To solve this problem, it is crucial to study the positional relationship of the key working parts of the ear picking device in the harvesting platform, namely the stem pulling roller, the grass cutting knife and the rear slide of the ear picking platform. Utility Model Content
[0004] The utility model provides a novel ear picking device and a corn harvester, aiming to solve the problems in the prior art.
[0005] The technical solution of the utility model to solve the above technical problems is as follows:
[0006] A novel ear picking device comprises a frame, two stem pulling rollers and two rear grass cutting knives. The two stem pulling rollers are installed on the frame so as to rotate horizontally relative to each other; the two rear grass cutting knives are relatively fixedly installed on the frame and are located on the side of the rear of the two stem pulling rollers away from each other, and their rear ends extend respectively to the outside of the rear ends of the two stem pulling rollers.
[0007] The beneficial effects of the utility model are as follows: during the operation, the two stem pulling rollers are driven by two motors to rotate relatively, the corn stalks enter between the two stem pulling rollers, and the two stem pulling rollers pull the stalks downwards to perform the ear picking operation;
[0008] During this process, the rear end of the rear grass cutter goes deep into the rear end of the stem pulling roller, and the straw and weeds that are not removed in time by the stem pulling can be directly cut off here, avoiding the problem of ear blockage;
[0009] The utility model has a simple structure and reasonable distribution of components. Through the study of the working principle of the ear picking platform, the position relationship of key components is confirmed and optimized through field tests. By optimizing parameters, the problems of poor feeding of ear clusters and the blocking of the ear conveying channel by the rear end stalks are eliminated, thereby reducing the occurrence of personal injury accidents caused by cutting platform maintenance, improving work efficiency and enhancing user experience.
[0010] On the basis of the above technical solution, the present invention can also be improved as follows.
[0011] Furthermore, it also includes two front grass cutting knives, which are relatively fixedly installed on the frame and are located on the side of the front parts of the two stem pulling rollers away from each other.
[0012] The beneficial effect of adopting the above further scheme is that during the operation, the two front grass cutting knives can directly cut off the straw and weeds that are not removed in time by the pulling stems, thereby avoiding the problem of fruit ear blockage. The structure is simple and the design is reasonable.
[0013] Furthermore, the two stem pulling rollers respectively include rollers, on which a plurality of blades are fixedly installed at even intervals along their own circumferences, respectively. The plurality of blades respectively extend along the axial direction of the corresponding stem pulling rollers, and are respectively distributed perpendicular to the corresponding stem pulling rollers.
[0014] The beneficial effect of adopting the above further scheme is that during operation, the two rollers rotate relatively, and the multiple blades rotate with the two rollers to pull the straw downwards to perform the ear picking operation.
[0015] Furthermore, the outer sides of the front ends of the plurality of blades are respectively sloped structures and form a cone structure as a whole, and the front ends of the two front grass cutting knives are respectively distributed in parallel with the front ends of the two stem pulling rollers.
[0016] The beneficial effects of adopting the above further scheme are simple structure and reasonable design. The front ends of the two front grass cutting knives are respectively kept parallel to the front ends of multiple blades, ensuring that the gaps with various parts of the stem pulling roller are consistent, eliminating the problem of grass entanglement on the guide cone.
[0017] Furthermore, the plurality of blades are respectively in the form of long strip-shaped plates.
[0018] The beneficial effect of adopting the above further solution is that the shapes of the multiple blades are reasonably designed and are parallel to the axial direction of the roller to facilitate ear picking operations.
[0019] Furthermore, the plurality of blades each have a tooth-like structure on one side away from the corresponding stem-pulling roller.
[0020] The beneficial effect of adopting the above further solution is that the structure of the multiple blades is reasonably arranged, which can make the ear picking operation more efficient.
[0021] Furthermore, a rear slide plate is fixedly mounted on the frame, the rear slide plate is located at the rear end of the corresponding stem pulling roller, and its front end extends to overlap with the rear end of the stem pulling roller; the rear slide plate is located on the outer side of the corresponding rear grass cutting knife.
[0022] The beneficial effects of adopting the above further scheme are simple structure and reasonable design. The rear slide plate blocks the stem pulling roller rib plate for a distance, which can reduce the entry of straw and weeds into the rear end fixing seat and avoid grass entanglement.
[0023] Furthermore, the rear slide plate is a bent plate.
[0024] The beneficial effect of adopting the above further solution is that the shape of the rear slide plate is reasonably designed, which is convenient for assembly and can be reasonably distributed with the stem pulling roller to avoid the problem of grass entanglement.
[0025] Furthermore, guide cones are respectively fixedly mounted on the front ends of the two stem pulling rollers.
[0026] The beneficial effects of adopting the above further scheme are simple structure and reasonable design. The special structure of the guide cone can be used to quickly feed the corn stalks between the two stalk pulling rollers, thereby greatly improving the efficiency of picking ears.
[0027] The utility model also relates to a corn harvester, comprising the novel ear picking device as described above.
[0028] The beneficial effect of adopting the above-mentioned further scheme is that the utility model also provides a corn harvester, which has a simple structure and reasonable distribution of various components. Through the study of the working principle of the ear picking platform, the positional relationship of key components is confirmed and optimized through field tests, and the problems of poor feeding of ears and the rear end straw blocking the ear conveying channel are eliminated by optimizing parameters, thereby reducing the occurrence of personal injury accidents caused by cutting platform maintenance, improving work efficiency, and enhancing user experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0030] Figure 2 for Figure 1 Sectional view along AA direction;
[0031] Figure 3 for Figure 2 Enlarged view of middle B;
[0032] Figure 4 It is a structural schematic diagram of a single stem pulling roller in the utility model.
[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0034] 1. Frame; 2. Rear grass cutter; 3. Front grass cutter; 4. Roller; 5. Blade; 6. Rear slide plate; 7. Guide cone. DETAILED DESCRIPTION
[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0036] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0038] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.
[0039] Example 1
[0040] like Figures 1 to 4 As shown, this embodiment provides a new ear picking device, including a frame 1, two stem pulling rollers and two rear grass cutting knives 2, the two stem pulling rollers are installed on the frame 1 so as to rotate horizontally relative to each other; the two rear grass cutting knives 2 are relatively fixedly installed on the frame 1, and are located on the side of the rear of the two stem pulling rollers away from each other, and the rear ends thereof extend respectively to the outside of the rear ends of the two stem pulling rollers.
[0041] During assembly, two motors are fixedly mounted on the frame 1, and the driving ends of the two motors are respectively extended axially with the two stem pulling rollers, and the driving ends are respectively fixedly connected to the rear ends of the two stem pulling rollers, and are respectively used to drive the two stem pulling rollers to rotate towards each other.
[0042] During the operation, the two stem pulling rollers are driven by two motors to rotate relative to each other, and the corn stalks enter between the two stem pulling rollers, and the two stem pulling rollers pull the stalks downward to perform the ear picking operation;
[0043] During this process, the rear end of the rear grass cutting knife 2 goes deep into the rear end of the stem pulling roller, and the straw and weeds that are not removed in time by the stem pulling can be directly cut off here to avoid the problem of ear blockage;
[0044] Preferably, in this embodiment, the two rear grass cutting knives 2 are respectively in the form of long strips, which are respectively distributed in parallel with the two stem pulling rollers, and the blades thereof are respectively oriented toward the sides of the two stem pulling rollers away from each other.
[0045] In addition, the rear ends of the two rear grass cutting knives 2 extend rearward to the rear of the rear ends of the two stem pulling rollers by a length M≥5 mm.
[0046] This embodiment has a simple structure and reasonable distribution of components. Through research on the working principle of the ear picking platform, the positional relationship of key components is confirmed and optimized through field tests. By optimizing parameters, the problems of poor ear feeding and rear end straw blocking the ear conveying channel are eliminated, thereby reducing the occurrence of personal injury accidents caused by harvesting platform maintenance, improving work efficiency and enhancing user experience.
[0047] Example 2
[0048] On the basis of Example 1, this embodiment further includes two front grass cutting knives 3, and the two front grass cutting knives 3 are relatively fixedly installed on the frame 1, and are located on the side of the front of the two stem pulling rollers away from each other.
[0049] During the operation, the two front grass cutting knives 3 can directly cut off the straw and weeds that are not removed in time by the pulling stems, thereby avoiding the problem of fruit ear blockage. The structure is simple and the design is reasonable.
[0050] Preferably, in this embodiment, the two front grass cutting knives 3 are respectively in the form of long strips of plate-like structures, which are respectively distributed in parallel with the two stem pulling rollers, and the blades thereof face the side of the two stem pulling rollers away from each other.
[0051] Example 3
[0052] On the basis of Example 2, in this embodiment, the two stem pulling rollers respectively include rollers 4, and the two rollers 4 are respectively provided with a plurality of blades 5 evenly spaced and fixedly installed along their own circumferences. The plurality of blades 5 respectively extend along the axial direction of the corresponding stem pulling rollers, and are respectively distributed perpendicular to the corresponding stem pulling rollers.
[0053] During operation, the two rollers rotate relatively, and the plurality of blades 5 rotate along with the two rollers to pull the straw downwards to perform the ear picking operation.
[0054] Preferably, in this embodiment, each stem pulling roller is evenly spaced along its circumference with a plurality of strong tension bars, and the plurality of strong tension bars are alternately spaced with the corresponding plurality of blades 5, and extend along the axial direction of the corresponding stem pulling roller. The strong tension bars designed on the stem pulling roller can reduce the gap between the stem pulling channels of the two stem pulling rollers and improve the stem pulling effect.
[0055] Example 4
[0056] On the basis of Example 3, in this embodiment, the outer sides of the front ends of the plurality of blades 5 are respectively sloped structures and form a cone structure as a whole, and the front ends of the two front grass cutting knives 3 are respectively distributed parallel to the front ends of the two stem pulling rollers.
[0057] This solution has a simple structure and a reasonable design. The front ends of the two front grass cutting knives 3 are respectively kept parallel to the front ends of the plurality of blades 5, ensuring that the gaps with various parts of the stem pulling roller are consistent, eliminating the problem of grass entanglement on the guide cone.
[0058] The front ends of the two front grass cutting knives 3 are respectively designed to follow the two stem pulling rollers to ensure consistent gaps.
[0059] Alternatively, the two front grass cutting knives 3 may also adopt a straight plate structure, in which case the gap between the front ends of the two front grass cutting knives 3 and the two stem pulling rollers is larger than the gap between the rear ends of the two front grass cutting knives 3 and the two stem pulling rollers.
[0060] Example 5
[0061] On the basis of any one of Embodiments 3 to 4, in this embodiment, the plurality of blades 5 are respectively in the form of long strips of plate-like structures.
[0062] The shapes of the plurality of blades 5 are reasonably designed and are parallel to the axial direction of the roller to facilitate the ear picking operation.
[0063] Example 6
[0064] On the basis of Example 5, in this embodiment, the plurality of blades 5 have tooth-like structures on the side away from the corresponding stem-pulling roller.
[0065] The multiple blades 5 are reasonably structured, and can perform ear picking operations more efficiently.
[0066] The corresponding sides of the plurality of blades 5 may all be tooth-shaped structures, or may be partially planar and partially tooth-shaped, for example, the front plate portion may be planar and the rear portion may be tooth-shaped.
[0067] Alternatively, the plurality of blades 5 are in a planar structure on the side away from the corresponding stem pulling roller, but the ear picking strength of this structure is not as good as the above-mentioned solution.
[0068] In addition, the plurality of blades 5 are respectively made of materials such as cladding material or steel plates.
[0069] Example 7
[0070] On the basis of the above embodiments, in this embodiment, a rear slide plate 6 is also fixedly mounted on the frame 1, and the rear slide plate 6 is located at the rear end corresponding to the stem pulling roller, and its front end extends to overlap with the rear end portion of the stem pulling roller; the rear slide plate 6 is located at the outer side of the rear grass cutting knife 2.
[0071] The solution has a simple structure and a reasonable design. The rear slide plate 6 blocks the stem pulling roller rib plate for a distance, which can reduce the entry of straw and weeds into the rear end fixing seat and avoid grass entanglement.
[0072] Preferably, in this embodiment, the overlapping length L between the front end of the rear slide plate 6 and the corresponding stem pulling roller is 10-30 mm, which reduces the possibility of grass entanglement and reduces the downtime.
[0073] Example 8
[0074] On the basis of Embodiment 7, in this embodiment, the rear slide plate 6 is a bent plate.
[0075] The shape of the rear slide plate 6 is reasonably designed, which is convenient for assembly and can be reasonably distributed with the stem pulling roller to avoid the problem of grass entanglement.
[0076] Alternatively, the rear slide plate 6 may also adopt a straight plate structure, but this structure is not as convenient to assemble as the above solution.
[0077] Example 9
[0078] On the basis of the above embodiments, in this embodiment, guide cones 7 are respectively fixedly mounted on the front ends of the two stem pulling rollers.
[0079] The scheme has a simple structure and a reasonable design. The special structure of the guide cone 7 can be used to quickly feed the corn stalks between the two stalk pulling rollers, thereby greatly improving the ear picking efficiency.
[0080] Preferably, in this embodiment, the two guide cones 7 are preferably spiral structures, with a thin front end and a thick rear end, and the rear ends are fixedly connected to the front ends of the two stem pulling rollers.
[0081] Example 10
[0082] On the basis of the above embodiments, this embodiment also provides a corn harvester, including the novel ear picking device as described above.
[0083] The present embodiment also provides a corn harvester, which has a simple structure and reasonable distribution of components. By studying the working principle of the ear picking platform, the positional relationship of key components is confirmed and optimized through field tests, and the problems of poor ear feeding and rear end straw blocking the ear conveying channel are eliminated by optimizing parameters, thereby reducing the occurrence of personal injury accidents caused by harvesting platform maintenance, improving work efficiency, and enhancing user experience.
[0084] The working principle of the utility model is as follows:
[0085] During the operation, the two stem pulling rollers are driven by two motors to rotate relative to each other, and the corn stalks enter between the two stem pulling rollers, and the two stem pulling rollers pull the stalks downward to perform the ear picking operation.
[0086] It should be noted that all electronic components involved in the present invention adopt the existing technology, and the above-mentioned components are electrically connected to the controller, and the control circuit between the controller and each component is the existing technology.
[0087] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
[0088] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
[0089] 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 novel ear picking device, characterized in that: It comprises a frame (1), two stem pulling rollers and two rear grass cutting knives (2), wherein the two stem pulling rollers are mounted on the frame (1) so as to rotate horizontally relative to each other; the two rear grass cutting knives (2) are relatively fixedly mounted on the frame (1), and are located on the side of the rear of the two stem pulling rollers that are away from each other, and their rear ends extend respectively to the outside of the rear ends of the two stem pulling rollers.
2. The novel ear picking device according to claim 1 is characterized in that: It also comprises two front grass cutting knives (3), which are relatively fixedly mounted on the frame (1) and are located on the front side of the two stem pulling rollers away from each other.
3. The novel ear picking device according to claim 2 is characterized in that: The two stem-pulling rollers respectively include a roller (4), on which a plurality of blades (5) are fixedly mounted at even intervals along their own circumferences, respectively, and the plurality of blades (5) respectively extend along the axial direction of the corresponding stem-pulling roller, and are respectively distributed perpendicular to the corresponding stem-pulling roller.
4. The novel ear picking device according to claim 3 is characterized in that: The outer sides of the front ends of the plurality of blades (5) are respectively in a sloped structure and form a cone-shaped structure as a whole, and the front ends of the two front grass cutting knives (3) are respectively distributed in parallel with the front ends of the two stem pulling rollers.
5. The novel ear picking device according to claim 3 is characterized in that: The plurality of blades (5) are respectively in the form of long strip-shaped plates.
6. The novel ear picking device according to claim 5 is characterized in that: The plurality of blades (5) are each in a tooth-like structure on a side away from the corresponding stem-pulling roller.
7. The novel ear picking device according to any one of claims 1 to 6, characterized in that: The frame (1) is also fixedly mounted with a rear slide plate (6), which is located at the rear end of the corresponding stem pulling roller, and its front end extends to overlap with the rear end of the stem pulling roller; the rear slide plate (6) is located at the outer side of the corresponding rear grass cutting blade (2).
8. The novel ear picking device according to claim 7 is characterized in that: The rear slide plate (6) is a bent plate.
9. The novel ear picking device according to any one of claims 1 to 6, characterized in that: A guide cone (7) is fixedly mounted on the front ends of the two stem pulling rollers.
10. A corn harvester, characterized in that: It comprises a novel ear picking device as described in any one of claims 1-9.