Walnut sheller with kernel protection

Abstract

The utility model discloses a walnut sheller with kernel protection device relates to walnut processing technical field, including the shelling box, and the shelling box inside rotation is provided with the broken roll, and the shelling box upper end rotation is provided with the pivot, and the pivot middle part is fixedly provided with the extrusion board of wavy shape, and the extrusion board is located broken roll one side, and the shelling box outer wall is fixedly provided with motor, and motor output end is connected with the axle of broken roll, and the shelling box one side is provided with buffer assembly, and buffer assembly is used to buffer extrusion board in extruding process to make pressure distribution even. The utility model discloses through setting buffer assembly and wavy extrusion board cooperation effect, in the shelling process, when broken roll drive walnut and extrusion board contact, buffer assembly absorbs the impact force that extrusion produces through the elastic deformation, makes extrusion pressure even distribution to whole contact surface, avoids the kernel puncture or broken that local stress concentration leads to.

Description

Technical Field

[0001] This utility model relates to the field of walnut processing, and in particular to a walnut shelling machine with a kernel protection device. Background Technology

[0002] A walnut shelling machine is an agricultural device used to mechanize the shelling process of walnuts. Its core function is to replace the traditional, inefficient manual shelling method by using mechanical force to break the hard walnut shell and separate it from the kernel, thereby significantly improving production efficiency, reducing labor costs, and meeting the needs of large-scale processing. These machines typically utilize principles such as roller pressing, hammering, or squeezing to extract the highly nutritious walnut kernel intact, making them a key piece of equipment in the post-harvest processing of walnuts.

[0003] However, traditional walnut shelling machines often use rigid compression or impact mechanisms. When applied to walnuts of varying hardness and irregular shape, the force is often too concentrated and difficult to adjust flexibly. This instantaneous rigid collision or compression can easily cause shell fragments to pierce the kernel, or cause the kernel to crack or break due to excessive local stress, resulting in broken kernels. This reduces the yield of high-value whole kernels. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing walnut shelling machines, which easily cause kernel breakage and damage, by proposing a walnut shelling machine with a kernel protection device.

[0005] To address the problems existing in the prior art, the present invention adopts the following technical solution: A walnut shelling machine with a kernel protection device includes a shelling box, a crushing roller rotatably mounted inside the shelling box, a rotating shaft rotatably mounted at the upper end of the shelling box, a wave-shaped extrusion plate fixedly mounted in the middle of the rotating shaft, the extrusion plate being located on one side of the crushing roller, a motor fixedly mounted on the outer wall of the shelling box, the output end of the motor being connected to the shaft of the crushing roller, and a buffer assembly mounted on one side of the shelling box, the buffer assembly being used to buffer the extrusion plate during the extrusion process to ensure uniform pressure distribution.

[0006] Preferably, the buffer assembly includes a bolt with a transverse thread inside the shelling box, a nut threaded on the bolt, a rubber pad fixedly attached to one end of the bolt inside the shelling box, the rubber pad being located on one side of the extrusion plate, and stop bars fixedly attached to both sides of the inner wall of the shelling box, the stop bars being located at the other end of the extrusion plate.

[0007] Preferably, a connecting rod is fixedly installed on the edge of the rotating shaft end, a return spring is fixedly provided at the end of the connecting rod, a fixing block is fixedly connected to one end of the return spring, and the end of the fixing block is fixedly connected to the outer wall of the shelling box.

[0008] Preferably, a feeding pipe is fixedly provided at the upper end of the shelling box, and two guide plates are inclinedly provided on both sides of the inner wall of the feeding pipe.

[0009] Preferably, the lower end of the shelling box is provided with a feeding pipe at an angle, a fan is fixedly provided on the side of the feeding pipe, and a partition plate is fixedly provided at the middle position of the outlet of the feeding pipe.

[0010] Compared with the prior art, the beneficial effects of this utility model are: In this invention, by setting up a buffer component and a corrugated extrusion plate to work together, during the shelling process, when the crushing roller drives the walnut to contact the extrusion plate, the buffer component absorbs the impact force generated by the extrusion through elastic deformation, so that the extrusion force is evenly distributed across the entire contact surface, avoiding puncture or breakage of the kernel due to local stress concentration. The design of the corrugated extrusion plate further optimizes the force transmission path, and together with the dynamic adjustment of the buffer component, it not only ensures the efficiency of shell crushing but also significantly reduces the mechanical damage rate of the kernel. Attached Figure Description

[0011] 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 internal structure of the shell-removing box of this utility model; Figure 3 This is a schematic diagram of the buffer component structure of this utility model; Figure 4 This is a schematic diagram of the reset spring structure of this utility model.

[0012] The following are the components listed in the diagram: 1. Shelling box; 11. Crushing roller; 12. Rotating shaft; 13. Extrusion plate; 14. Motor; 2. Buffer assembly; 21. Bolt; 22. Nut; 23. Rubber pad; 24. Stop bar; 3. Connecting rod; 31. Return spring; 32. Fixing block; 4. Feeding pipe; 41. Guide plate; 5. Discharging pipe; 51. Fan; 52. Divider plate. Detailed Implementation

[0013] 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.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] In the description of this specification, the references to terms such as "embodiment," "one embodiment," "some implementations," "exemplary," and "one implementation," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0016] Example: This example provides a walnut shelling machine with a kernel protection device. See [link to example]. Figure 1-4 Specifically, it includes a shelling box 1, inside which a crushing roller 11 is rotatably mounted, and at the upper end of the shelling box 1, a rotating shaft 12 is rotatably mounted, and at the middle of the rotating shaft 12, a wave-shaped extrusion plate 13 is fixedly mounted, the extrusion plate 13 is located on one side of the crushing roller 11, and a motor 14 is fixedly mounted on the outer wall of the shelling box 1, the output end of the motor 14 is connected to the shaft of the crushing roller 11, and a buffer assembly 2 is provided on one side of the shelling box 1, the buffer assembly 2 is used to buffer the extrusion plate 13 during the extrusion process to make the pressure distribution uniform.

[0017] In this embodiment, the crushing roller 11 serves as the active crushing component. Its rotation causes the walnuts to contact the extrusion plate 13, generating extrusion force. The non-planar design of the corrugated extrusion plate 13 increases the contact area with the walnuts, preventing localized stress concentration; the rotating shaft 12 allows it to oscillate with the extrusion force. The motor 14 provides power to drive the crushing roller 11 to rotate, controlling the shelling rhythm. When the walnuts enter between the crushing roller 11 and the extrusion plate 13, the rotation of the crushing roller 11 pushes the walnuts forward, while the extrusion plate 13, subjected to the reaction force of the walnuts, oscillates towards the buffer assembly 2. The two work together to achieve extrusion shelling.

[0018] In the specific implementation process, such as Figure 2 and Figure 3 As shown, the buffer assembly 2 includes a bolt 21 with a transverse thread inside the shelling box 1, a nut 22 threaded on the bolt 21, a rubber pad 23 fixedly installed at one end of the bolt 21 inside the shelling box 1, the rubber pad 23 being located on one side of the extrusion plate 13, and a stop bar 24 fixedly installed on both sides of the inner wall of the shelling box 1, the stop bar 24 being located at the other end of the extrusion plate 13.

[0019] In this embodiment, bolt 21 and nut 22 are used to adjust the initial position of rubber pad 23 and control the buffer stroke of extrusion plate 13. Rubber pad 23 absorbs the extrusion impact force through elastic deformation, transforming rigid impact into flexible buffer and avoiding stress concentration. Stop bar 24 is used to limit the reverse swing amplitude of extrusion plate 13 to prevent excessive displacement from causing equipment damage. When extrusion plate 13 is squeezed and moves towards buffer assembly 2, rubber pad 23 is compressed and deformed to disperse pressure; stop bar 24 provides mechanical limit when extrusion plate 13 swings in the reverse direction to ensure stable equipment operation.

[0020] In the specific implementation process, such as Figure 3 and Figure 4 As shown, a connecting rod 3 is fixedly installed on the edge of the end of the rotating shaft 12. A return spring 31 is fixedly installed at the end of the connecting rod 3. A fixing block 32 is fixedly connected to one end of the return spring 31. The end of the fixing block 32 is fixedly connected to the outer wall of the shelling box 1.

[0021] In this embodiment, the connecting rod 3 is used to transmit the swing displacement of the rotating shaft 12 to the return spring 31. The return spring 31 provides a reverse pulling force, so that the extrusion plate 13 automatically returns to its original position after extrusion, maintaining continuous buffering capacity. The fixing block 32 serves as the fixed fulcrum of the return spring 31, ensuring the stability of the force direction. When the extrusion plate 13 swings under pressure, the connecting rod 3 drives the return spring 31 to stretch, and the return spring 31 stores energy; after extrusion ends, the spring releases energy, pulling the extrusion plate 13 back to its original position, preparing for the next extrusion.

[0022] In the specific implementation process, such as Figure 1 and Figure 2 As shown, a feeding pipe 4 is fixedly installed at the upper end of the shelling box 1, and two guide plates 41 are inclined on both sides of the inner wall of the feeding pipe 4.

[0023] In this embodiment, the feeding pipe 4 serves as the channel for walnuts to enter the shelling box 1, controlling the feeding direction. The inclined design of the guide plate 41 guides the walnuts to slide naturally between the crushing roller 11 and the extrusion plate 13, avoiding accumulation and blockage. After the walnuts are fed into the feeding pipe 4, they slide along the guide plate 41 into the crushing area, achieving uniform feeding and ensuring shelling efficiency.

[0024] In the specific implementation process, such as Figure 1 and Figure 2 As shown, the lower end of the shelling box 1 is provided with a feeding pipe 5 at an angle, a fan 51 is fixedly provided on the side of the feeding pipe 5, and a partition plate 52 is fixedly provided at the middle position of the outlet of the feeding pipe 5.

[0025] In this embodiment, the inclined design of the feeding pipe 5 utilizes gravity to guide the shelled material to slide naturally. The fan 51 generates airflow to blow the lighter shells away from the kernels, achieving initial separation. The separator 52 divides the outlet of the feeding pipe 5 into a shell channel and a kernel channel, completing secondary separation. As the shelled mixture slides down the feeding pipe 5, the fan 51 blows the lighter shells to one side, while the kernels, due to their greater weight, fall to the other side. The separator 52 ensures that the two types of materials are discharged separately, improving the separation purity.

[0026] 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 inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A walnut shelling machine with a kernel protection device, comprising a shelling box (1), characterized in that: The shelling box (1) is rotatably equipped with a crushing roller (11) inside. The upper end of the shelling box (1) is rotatably equipped with a rotating shaft (12). A wave-shaped extrusion plate (13) is fixedly installed in the middle of the rotating shaft (12). The extrusion plate (13) is located on one side of the crushing roller (11). A motor (14) is fixedly installed on the outer wall of the shelling box (1). The output end of the motor (14) is connected to the shaft of the crushing roller (11). A buffer assembly (2) is provided on one side of the shelling box (1). The buffer assembly (2) is used to buffer the extrusion plate (13) during the extrusion process so that the pressure is evenly distributed.

2. A walnut shelling machine with a kernel protection device according to claim 1, characterized in that: The buffer assembly (2) includes a bolt (21) with a transverse thread inside the shelling box (1), a nut (22) threaded on the bolt (21), a rubber pad (23) fixedly provided at one end of the bolt (21) inside the shelling box (1), the rubber pad (23) being located on one side of the extrusion plate (13), and a stop bar (24) fixedly provided on both sides of the inner wall of the shelling box (1), the stop bar (24) being located at the other end of the extrusion plate (13).

3. A walnut shelling machine with a kernel protection device according to claim 1, characterized in that: A connecting rod (3) is fixedly installed on the edge of the end of the rotating shaft (12). A reset spring (31) is fixedly provided at the end of the connecting rod (3). A fixing block (32) is fixedly connected to one end of the reset spring (31). The end of the fixing block (32) is fixedly connected to the outer wall of the shelling box (1).

4. A walnut shelling machine with a kernel protection device according to claim 1, characterized in that: The upper end of the shelling box (1) is fixedly provided with a feeding pipe (4), and two guide plates (41) are inclined on both sides of the inner wall of the feeding pipe (4).

5. A walnut shelling machine with a kernel protection device according to claim 1, characterized in that: The lower end of the shelling box (1) is provided with a feeding pipe (5), a fan (51) is fixedly provided on the side of the feeding pipe (5), and a partition plate (52) is fixedly provided at the middle position of the outlet of the feeding pipe (5).

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