A maize harvester pulling roller

Abstract

The utility model discloses a kind of fresh corn harvester pull stem rollers, it is related to agricultural machinery technical field, including rectangle frame, slope notch on it is helpful to guide corn plant to enter, a pair of roll shafts is rotatably arranged in rectangle frame front side, fixed roller is sleeved in roll shaft middle part, it is equipped with reinforcing rib and arc tooth, for enhancing structure and effectively pulling stem;Conical roller is equipped at roll shaft front end, the helical tooth on its surface can guide stem to enter smoothly;Rectangle frame top side is equipped with fixed plate, first belt and second belt are respectively arranged in fixed plate upper and lower, both synchronous transmission, first poking piece and second poking piece are respectively equipped on belt, for poking ear and cleaning stem.The device realizes the whole efficient operation from guiding, pulling stem to separating, cleaning by the synergistic effect of conical roller, fixed roller and belt poking piece etc., significantly improves the quality and efficiency of fresh corn harvesting.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a stalk-pulling roller for a fresh corn harvester. Background Technology

[0002] In the field of mechanized harvesting of sweet corn, the stalk pulling roller is the core working component for separating the stalk from the ear. Existing technologies generally suffer from insufficient structural strength and are prone to deformation under high-speed, high-load operation, directly affecting harvesting efficiency. Furthermore, the toothed structure design on the surface of traditional stalk pulling rollers is relatively simple, offering poor adaptability to corn stalks of varying shapes. This often results in inadequate gripping or breakage, leading to stalk entanglement and blockage. This not only requires frequent machine stops for cleaning but also causes missed ear losses, failing to meet the agronomical requirements for efficient and low-loss harvesting of sweet corn.

[0003] Specifically, existing stem-pulling roller devices have significant shortcomings in overall transmission and coordinated operation. Their power transmission path often relies on complex external mechanisms with an unreasonable layout, resulting in low transmission efficiency, high energy consumption, and frequent malfunctions. Furthermore, there is a lack of effective linkage design between the stem-pulling roller and subsequent stem cleaning and conveying components, leading to disjointed functional connections and preventing the formation of a smooth production line. This lack of coordination results in poor stem and impurity cleaning after the stem-pulling action, further exacerbating the risk of clogging and hindering the overall improvement of the machine's performance. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art, and to propose a structure for the stalk pulling roller of a fresh corn harvester.

[0005] To address the problems existing in the prior art, the present invention adopts the following technical solution: A stalk-pulling roller for a fresh corn harvester includes a rectangular frame with a sloping groove. A pair of symmetrically distributed rollers are rotatably inserted on both sides of the front of the rectangular frame, and the pair of rollers are configured to rotate relative to each other. A fixed roller is fixedly sleeved in the middle of each roller, and a conical roller is fixedly sleeved at the front end of each roller. A pair of symmetrically distributed fixing plates are fixed on both sides of the top edge of the front of the rectangular frame. A first belt is suspended above each fixing plate, and a second belt is suspended below each fixing plate. The first belt and the second belt on the same side are synchronously connected for transmission.

[0006] Preferably, a fixed gear is fixedly sleeved at the rear end of each roller shaft, and a pair of fixed gears are meshed with each other. The rear end of each roller shaft extends backward and is fixedly sleeved with a fixed bevel gear.

[0007] Preferably, a pair of through-distributed driven shafts are rotatably inserted on both sides of the top surface of the rectangular frame. The bottom end of each driven shaft extends downward and is fixedly fitted with a driven bevel gear. The fixed bevel gear on the same side meshes with the driven bevel gear.

[0008] Preferably, each of the fixed plates has a through-type fixed shaft rotatably inserted at its front end, and a linkage shaft rotatably inserted at its rear end of the bottom surface of each of the fixed plates. The upper and lower ends of the fixed shaft, the top end of the driven shaft, and the bottom end of the linkage shaft are all fixedly fitted with pulleys, and the first belt and the second belt are respectively fitted on the corresponding pulleys.

[0009] Preferably, a rectangular through hole is provided on the rear side wall of the rectangular frame, and a servo motor is fixedly installed inside the rectangular through hole. The output end of the servo motor faces forward and is fixedly connected to the rear end of the corresponding roller shaft through a coupling.

[0010] Preferably, the outer surface of the fixed roller is provided with a plurality of uniformly distributed reinforcing ribs, and a plurality of equally spaced arc-shaped teeth are provided between adjacent reinforcing ribs, and the outer surface of the conical roller is provided with conically distributed spiral teeth.

[0011] Preferably, the outer surface of the first belt is provided with a plurality of equidistant first actuating plates, and the outer surface of the second belt is provided with a plurality of equidistant second actuating plates.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, during the corn plant introduction and stalk pulling stages, the spiral teeth on the surface of the conical roller can effectively guide the stalk smoothly into the subsequent working area, playing a good role in introduction and centering; the fixed roller, as the main section for stalk pulling, has reinforcing ribs on its surface to improve the overall structural strength and prevent roller deformation; at the same time, the arc-shaped teeth reliably grip and pull the corn stalk during the relative rotation of the roller shaft, significantly improving the efficiency and smoothness of stalk pulling; 2. In this utility model, during the stalk separation and cleaning process, the first belt and its first actuating plate located above the fixed plate are responsible for pushing the corn ears and upper stalks backward to effectively separate them from the stalk pulling roller; at the same time, the second belt and its second actuating plate below perform secondary cleaning and pushing of the processed lower stalks, effectively preventing stalk entanglement or blockage, and ensuring the continuity and stability of the harvesting operation. In summary, this utility model achieves highly efficient coordination throughout the entire process from guiding and pulling the stalks to separation and cleaning through the coordinated operation of components such as conical rollers, fixed rollers, reinforcing ribs, arc-shaped teeth, spiral teeth, as well as first belts, first actuating plates, second belts, and second actuating plates, significantly improving the operational quality and overall efficiency of fresh corn harvesting. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective; Figure 3 This is an exploded view of the overall structure of this utility model; Figure 4 This is a schematic diagram of the first belt, the second belt, and the fixed roller structure of this utility model; Figure 5 For the present utility model Figure 4 Explosion-proof diagram of the structure; Figure 6 This is a schematic diagram of the fixed roller and conical roller structure of this utility model; In the diagram, the numbers are as follows: 100, rectangular frame; 101, sloping groove; 102, roller shaft; 103, fixed gear; 104, fixed bevel gear; 105, servo motor; 106, fixed roller; 107, reinforcing rib; 108, arc-shaped tooth; 109, conical roller; 110, helical tooth; 200, fixed plate; 201, fixed shaft; 202, driven shaft; 203, driven bevel gear; 204, first belt; 205, first actuating plate; 206, linkage shaft; 207, second belt; 208, second actuating plate. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Example: This example provides a stalk-pulling roller for a fresh corn harvester. See [link / reference] Figures 1 to 6Specifically, it includes a rectangular frame 100, on which a sloping groove 101 is provided. The sloping groove 101 serves as a guide, facilitating the smooth entry of corn plants into the working area of ​​the stalk-pulling roller. A pair of symmetrically distributed roller shafts 102 are rotatably inserted on both sides of the front of the rectangular frame 100, and the pair of roller shafts 102 are configured to rotate relative to each other. A fixed roller cylinder 106 is fixedly sleeved in the middle of each roller shaft 102. Several evenly distributed reinforcing ribs 107 are fixedly provided on the outer surface of the fixed roller cylinder 106, and several... The equidistantly distributed arc-shaped teeth 108 and the fixed roller 106 serve as the main section for stalk pulling. The reinforcing ribs 107* on the surface of the roller are used to improve the structural strength of the roller and prevent deformation. The arc-shaped teeth 108 effectively grab and pull the corn stalks during relative rotation. Each roller shaft 102 has a conical roller 109 fixedly sleeved at its front end. The outer surface of the conical roller 109 is fixed with conically distributed spiral teeth 110, which can better guide the stalks to smoothly enter the stalk pulling area of ​​the subsequent fixed roller 106, playing the role of guiding and centering. A pair of symmetrically distributed fixed plates 200 are fixed on both sides of the top edge of the front of the rectangular frame 100. Above each fixed plate 200, a first belt 204 is suspended. Several first actuating plates 205 are fixed on the outer surface of the first belt 204. The first actuating plates 205 are responsible for pushing the corn ears and upper stalks backward to separate them from the stalk pulling roller. Below each fixed plate 200, a second belt 207 is suspended. Several second actuating plates 208 are fixed on the outer surface of the second belt 207. The second actuating plates 208 are used to clean and push the lower stalks that have been processed by the stalk pulling roller, preventing the stalks from getting tangled or blocked, ensuring the continuity of the operation process. The first belt 204 and the second belt 207 on the same side are synchronously connected for transmission.

[0016] It should be noted that: such as Figure 4 and Figure 5 As shown, a fixed gear 103 is fixedly sleeved at the rear end of each roller shaft 102, and a pair of fixed gears 103 mesh with each other to ensure that the power of the servo motor 105 can be transmitted synchronously and in reverse to another roller shaft 102 to form an effective pulling action. A fixed bevel gear 104 is fixedly sleeved at the rear end of each roller shaft 102. A pair of through-distributed driven shafts 202 are rotatably inserted on both sides of the top surface of the rectangular frame 100. The bottom end of each driven shaft 202 extends downward and is fixedly sleeved with a driven bevel gear 203. The fixed bevel gear 104 and the driven bevel gear 203 on the same side mesh with each other to convert the rotational power of the roller shaft 102 on the horizontal plane into the rotational power of the driven shaft 202 on the vertical plane. Each fixed plate 200 has a through fixed shaft 201 rotatably inserted at its front end, and a linkage shaft 206 rotatably inserted at its rear end. Pulleys are fixedly fitted at the upper and lower ends of the fixed shaft 201, the top end of the driven shaft 202, and the bottom end of the linkage shaft 206. The first belt 204 and the second belt 207 are respectively fitted on the corresponding pulleys. A rectangular through hole is opened in the rear side wall of the rectangular frame 100. A servo motor 105 is fixedly installed inside the rectangular through hole. The output end of the servo motor 105 faces forward and is fixedly connected to the rear end of the corresponding roller shaft 102 through a coupling.

[0017] The working principle of this embodiment is as follows: After startup, the output end of the servo motor 105 directly drives the rotation of one side roller shaft 102 through the coupling. The rotation of the roller shaft 102 synchronously drives the fixed gear 103, fixed bevel gear 104, fixed roller 106 and conical roller 109 on it to rotate together. Since a pair of fixed gears 103 mesh with each other, when one fixed gear 103 rotates, it will drive the other fixed gear 103 and the roller shaft 102 on which it is located to rotate in the opposite direction, thereby realizing the relative rotation of the two roller shafts 102. The reinforcing ribs 107 and arc-shaped teeth 108 installed on the surface of the fixed roller 106, and the spiral teeth 110 on the surface of the conical roller 109, realize the effective pulling and guiding of the corn stalk during the relative rotation. While the roller 102 rotates, the fixed bevel gear 104 meshes with the driven bevel gear 203 on the corresponding side, transmitting power to the driven shaft 202, which in turn drives the first belt 204 to rotate. The first belt 204 transmits power through the fixed shaft 201, and further drives the second belt 207 to run synchronously through the linkage shaft 206, so that the first belt 204 and the second belt 207 on the same side form a linkage transmission. Under the coordinated operation of the entire transmission chain, the first actuating plate 205 on the first belt 204 and the second actuating plate 208 on the second belt 207 respectively perform the functions of conveying and cleaning the stalks, forming an effective cooperation with the stalk pulling roller body to complete the smooth introduction, stalk pulling and separation of corn plants.

[0018] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A stalk-pulling roller for a fresh corn harvester, comprising a rectangular frame (100), wherein the rectangular frame (100) has a sloping groove (101) formed thereon, characterized in that: A pair of rollers (102) are rotatably inserted on both sides of the front of the rectangular frame (100), and the pair of rollers (102) are configured to rotate relative to each other. A fixed roller (106) is fixedly sleeved in the middle of the roller (102), and a tapered roller (109) is fixedly sleeved at the front end of the roller (102). A pair of fixed plates (200) are fixed on both sides of the top edge of the front of the rectangular frame (100). A first belt (204) is provided above the fixed plate (200), and a second belt (207) is provided below the fixed plate (200). The first belt (204) and the second belt (207) located on the same side are synchronously connected.

2. The stalk-pulling roller of a fresh corn harvester according to claim 1, characterized in that: The rear end of the roller (102) is fixedly fitted with a fixed gear (103), and a pair of fixed gears (103) are meshed with each other. The rear end of the roller (102) extends rearward and is fixedly fitted with a fixed bevel gear (104).

3. The stalk-pulling roller for a fresh corn harvester according to claim 2, characterized in that: A pair of driven shafts (202) are rotatably inserted on both sides of the top surface of the rectangular frame (100). The bottom end of the driven shaft (202) extends downward and is fixedly fitted with a driven bevel gear (203). The fixed bevel gear (104) on the same side meshes with the driven bevel gear (203).

4. The stalk-pulling roller for a fresh corn harvester according to claim 3, characterized in that: The front end of the fixed plate (200) is rotatably inserted with a through-distributed fixed shaft (201), and the rear end of the bottom surface of the fixed plate (200) is rotatably inserted with a linkage shaft (206). The upper and lower ends of the fixed shaft (201), the top end of the driven shaft (202), and the bottom end of the linkage shaft (206) are all fixedly fitted with pulleys. The first belt (204) and the second belt (207) are respectively fitted on the corresponding pulleys.

5. The stalk-pulling roller of a fresh corn harvester according to claim 1, characterized in that: A rectangular through hole is provided on the rear side wall of the rectangular frame (100). A servo motor (105) is fixedly installed inside the rectangular through hole. The output end of the servo motor (105) faces forward and is fixedly connected to the rear end of the corresponding roller shaft (102) through a coupling.

6. The stalk-pulling roller of a fresh corn harvester according to claim 1, characterized in that: The outer surface of the fixed roller (106) is provided with a plurality of reinforcing ribs (107), and a plurality of arc-shaped teeth (108) are provided between adjacent reinforcing ribs (107). The outer surface of the conical roller (109) is provided with helical teeth (110).

7. The stalk-pulling roller of a fresh corn harvester according to claim 1, characterized in that: The outer surface of the first belt (204) is fixed with a plurality of first actuating plates (205), and the outer surface of the second belt (207) is fixed with a plurality of second actuating plates (208).

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