A new type of stalk pulling roller

Abstract

The utility model discloses a novel pull stem roller, including roller shaft, guide cone, mounting seat, bearing seat and pull stem board, and guide cone fixedly is established in roller shaft front end, bearing seat is installed on the roller shaft and is close to the position of guide cone, and pull stem board circumferentially evenly distributes 12, and each pull stem board includes integrative feeding section and working section in proper order from front to back, and feeding section is along the roller shaft axiality and presents the slope structure, and the utility model compares with prior art and has the advantages of: through along the roller shaft circumferentially evenly distributed 12 pull stem boards, and the spacing between adjacent pull stem boards is greatly reduced, can form the closer clamping to the stalk, ensure that the stalk always keeps the smooth downward movement track in the pulling process, and the feeding section of pull stem board adopts the design of knife type or tooth cutter type, can shorten the stalk length when the stalk just enters the pull stem roller, shorten the processing length of stalk in the working section, and reduce the number of impurity cleaning system.

Description

Technical Field

[0001] This utility model relates to the technical field of corn harvester accessories and devices, specifically to a new type of stalk pulling roller. Background Technology

[0002] In mechanized corn harvesting, the stalk puller is one of the core working components of the corn harvester. Its main function is to guide the corn plants into the harvester through rotational motion and separate the stalks from the ears during the pulling process, laying the foundation for subsequent threshing, cleaning and other processes.

[0003] Traditional corn harvester stalk-pulling rollers have numerous structural design shortcomings, making it difficult to meet the demands of efficient and high-quality harvesting. In particular, most traditional stalk-pulling rollers employ a six-rib design, meaning six stalk-pulling plates are evenly distributed along the roller's circumference. This design results in relatively large gaps between the stalk-pulling plates. When corn stalks enter the working area of ​​the stalk-pulling roller, they are prone to bending, piling up, and even clogging within these gaps, preventing the stalks from being effectively gripped and pulled downwards smoothly. This problem directly leads to a large amount of unseparated stalks and leaves, and even some ear impurities, entering the subsequent threshing system along with the stalks, increasing the workload of the cleaning unit.

[0004] To address the aforementioned issues, existing technologies have attempted to increase the number of stem-pulling plates (ribs) to reduce gaps and enhance the clamping effect on the stems. However, due to the lack of targeted optimization of the feeding structure of the stem-pulling plates, traditional feeding sections are mostly straight or simply inclined, lacking efficient stem length shortening and guiding functions. This results in poor stem guidance and smoothness before entering the working section, and the inability to achieve rapid stem shortening in the initial feeding stage, leading to a longer stem working section and overall low efficiency. Utility Model Content

[0005] (I) Technical Issues

[0006] The present invention aims to provide a novel stalk-pulling roller that can avoid stalk bending and clogging, quickly shorten stalk length, and provide efficient guidance, thereby improving the operating efficiency and harvesting quality of corn harvesters.

[0007] (II) Technical Content

[0008] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a novel stem-pulling roller, comprising a roller shaft, a guide cone, a mounting seat, a bearing seat, and stem-pulling plates. The guide cone is fixedly disposed at the front end of the roller shaft; the mounting seat is fixedly disposed at the rear end of the roller shaft and is used to connect to the harvester transmission equipment; the bearing seat is mounted on the roller shaft and located near the guide cone; the stem-pulling plates are fixedly arranged parallel to each other along the length of the roller shaft, and 12 are evenly distributed circumferentially; each stem-pulling plate includes an integrally formed feeding section and a working section from front to back; the cross-section of the feeding section near the guide cone and the working section near the mounting seat are both designed with a knife shape; the feeding section has a sloping structure along the axial direction of the roller shaft, and the opening gradually narrows from front to back.

[0009] Furthermore, the guide cone is detachably fixed to the front end of the roller shaft by bolts.

[0010] Furthermore, the blade surfaces of both the feeding section and the working section are provided with toothed patterns to form a toothed blade shape.

[0011] Furthermore, the cross-section of the working section is rectangular.

[0012] Furthermore, a rib is fixedly connected between the stem-pulling plate and the roller shaft.

[0013] (III) Technical Effects

[0014] The advantages of this utility model compared with the prior art are as follows:

[0015] 1. By evenly distributing 12 stem-pulling plates along the circumference of the roller shaft, the spacing between adjacent stem-pulling plates is significantly reduced. This design creates a tighter grip on the stem, effectively preventing bending and accumulation of the stem within the gap between the stem-pulling rollers. This ensures that the stem maintains a smooth downward movement trajectory during the pulling process, fundamentally reducing the risk of blockage.

[0016] 2. The feeding section of the stalk-pulling plate adopts a blade-type or toothed blade-type design, which can quickly shorten the length of the corn stalk as soon as it enters the stalk-pulling roller. This shortens the processing length of the stalk in the working section and reduces impurities such as broken stalks and leaves caused by excessively long stalks. The toothed blade-type design in the working section enhances slag discharge, reduces the amount of impurities entering the subsequent threshing and cleaning system, reduces the cleaning load, and improves the working efficiency of the harvester.

[0017] 3. The feeding section has a sloping structure along the roller shaft axis, and the opening gradually narrows from front to back. This guides the stalks to smoothly transition from a large opening to a small opening and finally enter the working section smoothly, improving the accuracy and stability of stalk feeding and reducing the probability of blockage caused by poor stalk feeding. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a novel stem-pulling roller according to this utility model. Figure 1 .

[0019] Figure 2 This is a three-dimensional structural diagram of a novel stem-pulling roller according to this utility model. Figure 2 .

[0020] Figure 3 This is a three-dimensional structural diagram of a novel stem-pulling roller according to this utility model. Figure 3 .

[0021] Figure 4 This is a schematic diagram of the main structure of a novel stem-pulling roller according to this utility model.

[0022] As shown in the figure: 1. Roller shaft; 2. Guide cone; 3. Mounting seat; 4. Bearing seat; 5. Pulling plate; 6. Rib plate; 51. Feeding section; 52. Working section; 511. Tooth pattern. Detailed Implementation

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation structure and operation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided with," "installed," "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] Combined with appendix Figure 1 To be continued Figure 4A novel stem-pulling roller includes a roller shaft 1, a guide cone 2, a mounting base 3, a bearing seat 4, and stem-pulling plates 5. The guide cone 2 is fixedly disposed at the front end of the roller shaft 1. The mounting base 3 is fixedly disposed at the rear end of the roller shaft 1 and is used to connect to the harvester's transmission equipment. The bearing seat 4 is mounted on the roller shaft 1 and positioned close to the guide cone 2. The stem-pulling plates 5 are fixedly arranged parallel to the length of the roller shaft 1, and 12 are evenly distributed circumferentially. Each stem-pulling plate 5 includes, from front to back, an integrally formed feeding section 51 and a working section 52. The cross-section of the feeding section 51 near the guide cone 2 and the working section 52 near the mounting base 3 are both designed with a knife shape. The feeding section 51 has a sloping structure along the axial direction of the roller shaft 1, and the opening gradually narrows from front to back.

[0027] The guide cone 2 is detachably fixed to the front end of the roller shaft 1 by bolts. The blade-shaped surfaces of the feeding section 51 and the working section 52 are provided with teeth 511 to form a toothed shape. The cross-section of the working section 52 is rectangular. The pull plate 5 is fixedly connected to the roller shaft 1 with a rib plate 6.

[0028] The working principle of this utility model is as follows: Before use, the device is installed in pairs at the front end of the corn harvester. The stalk-pulling plates on the two stalk-pulling rollers interlock. The mounting base 3 is connected to the power end of the corn harvester, and the bearing seat 4 is fixed on the corn harvester. When the corn harvester starts working, the power is transmitted to the roller shaft 1 through the mounting base 3, causing the roller shaft 1 and the guide cone 2, stalk-pulling plate 5, and other components fixed on it to rotate together. The corn stalk first contacts the guide cone 2 located at the front end of the roller shaft 1. The guide cone 2 plays a preliminary guiding and gathering role on the stalk, guiding the dispersed stalk to the working area of ​​the stalk-pulling plate 5. As the roller shaft 1 continues to rotate, the stalk enters the feeding section 51 of the stalk-pulling plate 5. The feeding section 51 adopts a blade-shaped or toothed blade-shaped cross-section design. During rotation, the blade-shaped structure can quickly shorten the length of the stalk at the moment it enters, effectively shortening the length of the stalk that needs to be processed in the working section 52. Meanwhile, the feeding section 51 has a sloping structure along the axial direction of the roller shaft 1, with the opening gradually narrowing from front to back. This design guides the stem to smoothly transition from a large opening to a small opening along the slope, eventually entering the working section 52 of the stem-pulling plate 5. The working section 52 is designed with toothed blades to enhance slag removal, preventing the stem from getting stuck or shifting during feeding and reducing the probability of blockage. Since the stem-pulling plates 5 are fixedly arranged parallel to the length of the roller shaft 1, and there are 12 plates evenly distributed circumferentially, the spacing between adjacent plates is small. When the stem enters the working section 52, the 12 plates can form a tight clamp on the stem, and under the rotation of the roller shaft 1, they stably pull the stem downwards. The ribs 6 fixedly connected between the stem-pulling plates 5 and the roller shaft 1 enhance the structural strength of the connection between the plates, allowing them to withstand greater forces when clamping and pulling the stem, ensuring the stability and durability of the equipment under high-intensity operation.

[0029] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A novel stem-pulling roller, comprising a roller shaft (1), a guide cone (2), a mounting base (3), a bearing seat (4), and a stem-pulling plate (5), characterized in that: The guide cone (2) is fixedly mounted on the front end of the roller shaft (1); The mounting base (3) is fixedly disposed at the rear end of the roller (1) and is used to connect the harvester transmission equipment; The bearing housing (4) is mounted on the roller shaft (1) and is located near the guide cone (2); The stem-pulling plate (5) is fixedly arranged parallel to the length direction of the roller shaft (1), and 12 strips are evenly distributed in the circumference; Each stem plate (5) includes an integrally formed feeding section (51) and a working section (52) from front to back; the cross-section of the feeding section (51) near the guide cone (2) and the working section (52) near the mounting base (3) are both knife-shaped. The feeding section (51) has a sloping structure along the axial direction of the roller shaft (1), and the opening gradually narrows from front to back.

2. The novel stem-pulling roller according to claim 1, characterized in that: The guide cone (2) is detachably fixed to the front end of the roller (1) by bolts.

3. The novel stem-pulling roller according to claim 1, characterized in that: The blade-shaped surfaces of the feeding section (51) and the working section (52) are both provided with teeth (511) to form a toothed blade shape.

4. The novel stem-pulling roller according to claim 1, characterized in that: The cross-section of the working section (52) is rectangular.

5. A novel stem-pulling roller according to claim 1, characterized in that: A rib plate (6) is fixedly connected between the stem-pulling plate (5) and the roller (1).

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