A de-hulling cylinder for fresh soybean pod harvesting

Abstract

This utility model belongs to the field of agricultural machinery technology and discloses a pod-removing roller for harvesting fresh soybean pods. It includes a sealed cylindrical steel roller, a rotating shaft, and multiple elastic comb teeth. The comb teeth are made of spring steel and include a root, a groove, and a flat, inclined end, connected to the roller by threads. The inclined end and the root form an upward angle. During operation, the roller drives the comb teeth to rotate. The elastic comb teeth extend the contact time with the pods through deformation, the flat end increases the contact area, and the groove enhances the flexibility of the comb teeth, effectively reducing damage to the pods. The sealed roller structure avoids pod leakage, and the threaded connection ensures the stability of the comb teeth. This utility model solves the technical problems of high instantaneous impact force from comb teeth and pod leakage from open rollers, significantly improving the integrity rate and operational efficiency of mechanized harvesting of fresh soybeans. It is suitable for mechanized harvesting of different varieties of fresh soybeans.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a pod-removing roller for harvesting fresh soybean pods. Background Technology

[0002] Fresh soybeans (also known as vegetable soybeans or edamame) refer to soybeans harvested when the pods are plump, the seeds are bright green, and not fully mature. Fresh soybeans are not only tender and flavorful, but also rich in protein, vitamins, dietary fiber, and various trace elements, possessing high nutritional value and making them a popular choice among consumers, thus becoming an important part of modern diets. With the increasing demand for green foods and balanced nutrition, the market demand for fresh soybeans has been rising year by year, and the planting scale has continued to expand. This expansion has also placed higher demands on mechanized harvesting techniques.

[0003] Currently, mechanized harvesting of fresh soybeans mainly employs comb-tooth drum harvesting devices. These devices separate the pods from the plant through the high-speed rotation of the drum and the impact of the comb teeth. However, the contact time between the comb teeth and the pods during high-speed rotation is extremely short, resulting in excessive instantaneous impact force that easily causes pod skin cracking or seed loss. Furthermore, the comb teeth are mostly cylindrical, resulting in a very small contact area with the pods and concentrated impact force, which easily damages the pods, affecting their appearance and quality. Secondly, existing drums mostly use an open structure, composed of round rollers or long strips of steel plates, with the comb teeth mounted on these components. This allows pods to easily leak through the gaps in the drum, increasing the machine harvesting loss rate. Utility Model Content

[0004] The present invention aims to provide a pod-removing roller for harvesting fresh soybean pods, in order to solve the problems of excessive instantaneous impact force of comb teeth causing pod breakage and easy pod leakage in the open roller structure of the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] The basic technical solution provided by this utility model is: a pod-removing drum for harvesting fresh soybean pods, comprising a drum, the drum being a sealed cylindrical steel cylinder, the surface of the drum being connected with multiple elastic comb teeth, one end of each comb tooth being an inclined end, the end of each comb tooth away from the inclined end being a root, the inclined end forming an upward inclination angle with the root, the inclined end being flat; the drum is fixedly connected to a rotating shaft, the rotating shaft passing through the drum and extending to both ends of the drum, the rotating shaft being mounted on the header frame of the harvester via bearings and bearing seats.

[0007] The basic technical principle is as follows: The drum is connected to the header frame of the harvester via a rotating shaft and is driven to rotate. When the drum rotates, the evenly distributed elastic comb teeth on its surface contact the fresh soybean plants at a certain angle. The inclined flat ends of the comb teeth are made of elastic material, which produces progressive elastic deformation when in contact with the pods, achieving a gradient release of impact energy.

[0008] The beneficial effects of the basic technical solution are as follows: the spring steel material and groove design of the elastic comb teeth absorb the impact force and prolong the contact time when hitting the pods, effectively avoiding pod breakage or seed loss caused by instantaneous impact; the flat design of the inclined end increases the contact surface with the pods and reduces the damage to the pods when the comb teeth hit them; at the same time, the sealed roller structure completely wraps around the root of the comb teeth, eliminating the gap and pod leakage problem of traditional open rollers, and significantly reducing the machine harvesting loss rate.

[0009] Preferably, a plurality of the comb teeth are connected side by side to the surface of the roller, and the root of the comb teeth is connected to the roller by threads.

[0010] With the above configuration, the comb teeth can be modularly installed and replaced. At the same time, the threaded connection ensures the structural stability of the comb teeth under high-speed rotation conditions, avoiding loosening or falling off due to vibration.

[0011] Preferably, the root is provided with a groove, the groove and the inclined end are made of spring steel, and the upward inclination angle formed by the inclined end and the central axis of the root is 0-90 degrees.

[0012] Through the above settings, the groove structure optimizes the stress distribution at the root of the comb teeth, the spring steel material ensures that the comb teeth maintain their elasticity during repeated deformation, and the tilt design allows the comb teeth to contact the pods at a more appropriate angle, reducing the impact force in the vertical direction and thus reducing the risk of pod breakage. Attached Figure Description

[0013] Figure 1 A schematic diagram of the overall structure of a pod-removing drum used for harvesting fresh soybean pods;

[0014] Figure 2 A schematic diagram of a pod-removing roller comb structure for harvesting fresh soybean pods;

[0015] The names of the corresponding labels in the attached diagram are:

[0016] 1-Shaft, 2-Comb teeth, 3-Roller, 21-Root, 22-Groove, 23-Inclined end. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0018] like Figure 1 and 2 As shown, a pod-removing drum for harvesting fresh soybean pods includes a drum 3, which is a sealed cylindrical steel cylinder. Multiple elastic comb teeth 2 are connected to the surface of the drum 3, and the multiple comb teeth 2 are connected side by side to the surface of the drum 3. One end of the comb tooth 2 is an inclined end 23, and the end of the comb tooth 2 away from the inclined end 23 is a root 21. The root 21 is connected to the drum 3 by threads. The root 21 is provided with a groove 22. The groove 22 and the inclined end 23 are made of spring steel. The upward inclination angle formed by the inclined end 23 and the central axis of the root 21 is 0-90 degrees. The inclined end 23 is flat. A rotating shaft 1 is fixedly connected to the drum 3. The rotating shaft 1 passes through the drum 3 and extends to both ends of the drum 3. The rotating shaft 1 is installed on the header base of the harvester through bearings and bearing seats to realize rotation around the shaft.

[0019] The specific implementation process is as follows:

[0020] Before use, install the pod-removing roller on the header frame of the harvester via the rotating shaft 1, ensuring a reliable connection between the rotating shaft 1 and the drive unit. During use, start the harvester, driving the rotating shaft 1 to rotate the roller 3. The comb teeth 2 rotate with the roller 3 and contact the soybean pods on the plant. The inclined end 23 strikes the pods at a set upward angle, utilizing the elasticity of the spring steel to cause elastic deformation of the comb teeth 2 upon contact with the pods, prolonging the contact time and reducing the impact force. Furthermore, the flat inclined end 23 increases the contact area between the comb teeth and the pods, further reducing pressure on the pods and minimizing damage during detachment. Simultaneously, the groove 22 in the root 21 enhances the flexibility of the comb teeth 2, allowing for better elastic deformation during operation and preventing excessive instantaneous impact that could damage the pods. The detached pods move upwards under inertia and enter the conveying device for collection. As the drum 3 rotates continuously and the above process is repeated, the soybean pods on the soybean plant can be harvested in batches and efficiently.

[0021] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A de-hulling cylinder for the harvesting of fresh soybean pods, characterized in that: The machine includes a roller (3), which is a closed cylindrical steel cylinder. The roller (3) has multiple elastic comb teeth (2) connected to its surface. One end of each comb tooth (2) is an inclined end (23), and the end of each comb tooth (2) away from the inclined end (23) is a root (21). The inclined end (23) and the root (21) form an upward inclination angle. The inclined end (23) is flat. The roller (3) is fixedly connected to a rotating shaft (1). The rotating shaft (1) passes through the roller (3) and extends to both ends of the roller (3). The rotating shaft (1) is mounted on the header frame of the harvester through bearings and bearing seats.

2. The huller cylinder for use in the harvesting of fresh soybean pods according to claim 1, characterized in that: Multiple comb teeth (2) are connected side by side to the surface of the roller (3), and the root (21) is connected to the roller (3) by a thread.

3. The huller cylinder for use in the harvesting of fresh soybean pods according to claim 1, characterized in that: The root (21) is provided with a groove (22), the groove (22) and the inclined end (23) are made of spring steel, and the upward inclination angle formed by the inclined end (23) and the central axis of the root (21) is 0-90 degrees.

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