A stone-proof safety clutch for white gourd seed separator

Abstract

The utility model relates to the technical field of white melon seed separator safety protection, disclose a kind of white melon seed separator stoneproof safety clutch, including sprocket and chain, the sprocket is engaged between chain, the chain is used to provide power for the rotation of sprocket;White melon seed separation rotating shaft, the white melon seed separation rotating shaft is located in the inner wall of the sprocket, the white melon seed separation rotating shaft is used to separate white melon seed and handle;Safety component, the safety component is located between the sprocket and white melon seed separation rotating shaft, for white melon seed separator operation provides safety protection function.The utility model in, by setting with connecting rod as core safety component, reached when equipment encounters accidental overload, connecting rod is preferentially broken to the protection effect of initiative cut-off power transmission, in addition by setting the delicate cooperation of positioning rod and connecting block, the quick accurate alignment of hole site is realized when replacing safety component, and maintenance process is simplified.

Description

Technical Field

[0001] This utility model relates to the field of safety protection technology for melon seed separators, and in particular to a stone-proof safety clutch for melon seed separators. Background Technology

[0002] In agricultural by-product processing, the processing efficiency of white melon seeds directly impacts economic benefits. White melon seed separators are the core equipment for separating seeds from the pulp and rind, and are widely used in northern production areas and processing plants. With the advancement of large-scale planting, the demands for equipment throughput, operational stability, and ease of maintenance have increased. Although traditional equipment is designed according to a "crushing-screening-separation" process, overload and jamming problems caused by material characteristics or improper operation have become bottlenecks restricting efficiency and lifespan, necessitating optimization of safety protection and maintenance performance.

[0003] The existing equipment consists of a feeding, crushing, conveying, screening and separation, and power transmission mechanism, following the principle of "physical crushing - graded conveying - vibration separation". During operation, the white melon enters the crushing mechanism through the feeding hopper, where it is cut into small pieces by the blade assembly to achieve initial separation of seeds and pulp; the mixture is conveyed to the screening mechanism by the conveying screw, where multiple layers of screens work in conjunction with a vibrating motor, using inertia to make the melon seeds fall into the collection channel, and impurities are discharged along the screens; the power is provided by the main motor, which is transmitted to each mechanism via belt or gear transmission to achieve coordinated operation.

[0004] The existing power transmission system lacks an overload protection mechanism. When hard foreign objects such as stones get into the melon seed separator, the seed-separating shaft can jam instantly and stop rotating. At this time, the chain continues to provide a strong driving force to the sprocket, and the power path will be subjected to an overload exceeding the threshold. Because the transmission components are rigid or semi-rigid connections, they cannot be actively disconnected. The overload will be quickly transmitted to the main motor and related mechanisms, causing a chain reaction of damage such as bending of the screw shaft, chipping of the blade assembly, and motor burnout. This leads to long-term equipment downtime and affects production continuity. To address this problem, a stone-proof safety clutch for the melon seed separator is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a stone-proof safety clutch for a white melon seed separator, which aims to improve the problem of traditional equipment being prone to chain-like serious damage when jammed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A stone-proof safety clutch for a white melon seed separator includes: A sprocket and a chain, wherein the sprocket and the chain mesh with each other, and the chain provides power for the rotation of the sprocket; The white melon seed separation shaft is located on the inner wall of the sprocket and is used to separate white melon seeds. A safety component is located between the sprocket and the white melon seed separation shaft, and is used to provide safety protection for the operation of the white melon seed separator.

[0007] As a further description of the above technical solution: The safety component includes a safety screw and a connecting rod. The safety screw is threaded into the interior of the sprocket, and one end of the connecting rod is fixedly connected to one end of the safety screw.

[0008] As a further description of the above technical solution: A connecting ring is fixedly connected to the outer wall of the white melon seed separating shaft, and the connecting rod engages with a hole on one side of the connecting ring.

[0009] As a further description of the above technical solution: Connecting plates are fixedly connected to both sides of the safety screw, and multiple fixing blocks are fixedly connected to one end of the white melon seed separating shaft.

[0010] As a further description of the above technical solution: A rotating bar is fixedly connected between two adjacent fixed blocks, and a positioning rod is fixedly connected to the outer wall of the rotating bar.

[0011] As a further description of the above technical solution: The length of the positioning rod is less than the diameter of the white melon seed separation shaft, and the fixing block is located on one side of the center point of the white melon seed separation shaft.

[0012] As a further description of the above technical solution: A connecting block is fixedly connected to one end of the sprocket, and the connecting block is in contact with the positioning rod.

[0013] This utility model has the following beneficial effects: This invention, by incorporating a safety component centered on a connecting rod, achieves a protective function where the connecting rod breaks first to actively cut off power transmission when the equipment encounters an unexpected overload. This effectively solves the technical problem of traditional equipment easily causing cascading serious damage when jammed. Furthermore, the precise cooperation between the positioning rod and the connecting block enables quick and accurate alignment of the holes when replacing the safety component, simplifying the maintenance process, enhancing the convenience and precision of replacement operations, shortening downtime for maintenance, and improving production efficiency. Attached Figure Description

[0014] Figure 1 A three-dimensional schematic diagram of a stone-proof safety clutch for a white melon seed separator proposed in this utility model; Figure 2 This is a schematic diagram of the connecting ring structure of a stone-proof safety clutch for a white melon seed separator proposed in this utility model; Figure 3 This is a schematic diagram of the safety screw structure of a stone-proof safety clutch for a white melon seed separator proposed in this utility model; Figure 4 This is a schematic diagram of the connecting block structure of a stone-proof safety clutch for a white melon seed separator proposed in this utility model; Figure 5 for Figure 4 A magnified structural diagram at point A in the diagram.

[0015] Legend: 1. Sprocket; 2. Chain; 3. White melon seed separating shaft; 4. Connecting ring; 5. Safety screw; 6. Connecting rod; 7. Connecting piece; 8. Connecting block; 9. Fixing block; 10. Rotating bar; 11. Positioning rod. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Reference Figures 1-5 One embodiment of this utility model provides: a stone-proof safety clutch for a white melon seed separator, comprising: Sprocket 1 and chain 2 mesh with each other. Chain 2 is usually made of high-strength steel and is used to provide a continuous and stable power source for the rotation of sprocket 1, ensuring the continuous operation of the separation. Sprocket 1 and chain 2 mesh with each other through precise tooth profiles, which efficiently converts external power into its own rotational motion, providing the basic power for subsequent separation processing. The white melon seed separation shaft 3 is located on the inner wall of the sprocket 1. The white melon seed separation shaft 3 stirs and screens the material during rotation through the specific structure on its surface, and is used to efficiently separate the white melon seeds. It is the core working component for completing the separation of white melon seeds from impurities. The safety component is located between the sprocket 1 and the white melon seed separation shaft 3. As a key hub for power transmission and overload protection, the safety component provides decisive safety protection for the operation of the white melon seed separator. When the equipment encounters hard objects such as stones, it can actively cut off the power transmission by breaking the internal connecting parts to prevent the core components from being damaged due to overload. The safety component includes a safety screw 5 and a connecting rod 6. The safety screw 5 is a specially designed fastener used to reliably fix the safety component to the sprocket 1, while the connecting rod 6 is a metal pin of moderate hardness, serving as a preset break point. The safety screw 5 is threaded into the inside of the sprocket 1, and one end of the connecting rod 6 is fixedly connected to one end of the safety screw 5. A connecting ring 4 is fixedly connected to the outer wall of the white melon seed separating shaft 3. The connecting rod 6 engages with a hole on one side of the connecting ring 4. The connecting rod 6, in conjunction with the connecting ring 4, transmits power, stably transmitting the rotational motion of the sprocket 1 to the white melon seed separating shaft 3 under normal operating conditions, achieving the effect of driving the separation operation. Connecting plates 7 are fixedly connected to both sides of the safety screw 5, providing a force-bearing point for easy operation. The safety screw 5 can be quickly screwed in or out by hand or with simple tools. One end of the white melon seed separating shaft 3 is fixedly connected to multiple fixing blocks 9. A rotating bar 10 is fixedly connected between two adjacent fixing blocks 9. A positioning rod 11 is fixedly connected to the outer wall of the rotating bar 10. The length of the positioning rod 11 is less than the diameter of the white melon seed separating shaft 3. The fixing blocks 9 are located on one side of the center point of the white melon seed separating shaft 3. One end of the sprocket 1 is fixedly connected to a connecting block 8. The connecting block 8 and the positioning rod 11 are in close contact. When the connecting rod 6 is replaced, the flipped positioning rod 11 cooperates with the connecting block 8 for precise mechanical positioning. The tight contact between the two ensures that the holes on the sprocket 1 and the connecting ring 4 can be perfectly aligned, achieving the effect of quick and accurate reset without visual observation.

[0018] Working Principle: During normal operation, the power source drives the sprocket 1 to rotate continuously through the meshing of the chain 2 and the sprocket 1. The rotational motion of the sprocket 1 is transmitted to the melon seed separating shaft 3 via a sophisticated safety component. Specifically, the safety screw 5, fixed inside the sprocket 1, engages with the connecting ring 4, which is fixed to the outer wall of the melon seed separating shaft 3, via a connecting rod 6 at one end. In this way, the power of the sprocket 1 is transmitted to the connecting ring 4 through the safety screw 5 and the connecting rod 6, thereby driving the melon seed separating shaft 3 to rotate synchronously, achieving efficient separation of melon seeds.

[0019] If hard foreign objects such as stones are mixed in during equipment use, the melon seed separating shaft 3 will instantly jam and become unable to rotate. At this time, the chain 2 is still providing a strong driving force to the sprocket 1. Since the melon seed separating shaft 3 cannot rotate, this huge rotational force will be concentrated on the connecting rod 6, which is a transmission connector, subjecting it to shear stress far exceeding its design limits. The connecting rod 6 is designed as the weakest link in the entire transmission system, and it will break quickly as a result. The breakage of the connecting rod 6 instantly cuts off the power transmission between the sprocket 1 and the melon seed separating shaft 3, allowing the sprocket 1 to continue spinning without transmitting destructive torque to the jammed shaft and other core components. This achieves the decisive role of protecting critical and expensive equipment components such as the motor and shaft from damage by sacrificing a low-cost, vulnerable part in the event of unexpected jamming, effectively solving the problem of severe cascading damage that easily occurs in traditional equipment under overload.

[0020] When the damaged connecting rod 6 needs to be replaced, the operator first unscrews the connecting piece 7 on the safety screw 5 from the sprocket 1 and pulls out the broken connecting rod 6. Then, the sprocket 1 is removed from the melon seed separating shaft 3. To ensure precise alignment of the holes during reinstallation, the equipment is equipped with a unique positioning mechanism. The operator needs to rotate the positioning rod 11 at one end of the melon seed separating shaft 3 180 degrees around the rotating bar 10. Next, the sprocket 1 is remounted on the melon seed separating shaft 3, and the sprocket 1 is rotated so that the connecting block 8 on one side moves to a tight fit with the flipped positioning rod 11. When the connecting block 8 is in contact with the positioning rod 11, the screw hole on the sprocket 1 and the connecting hole on the connecting ring 4 are precisely aligned. This allows the new safety screw 5 and connecting rod 6 to be inserted into their respective holes without obstruction, quickly completing replacement and resetting, simplifying maintenance steps, enhancing the portability and precision of replacing safety components, significantly reducing downtime due to equipment malfunctions, and improving overall production efficiency.

Claims

1. A stone-proof safety clutch for a white melon seed separator, characterized in that, include: A sprocket (1) and a chain (2) meshing together, wherein the chain (2) provides power for the rotation of the sprocket (1); White melon seed separation shaft (3), the white melon seed separation shaft (3) is located on the inner wall of the sprocket (1), the white melon seed separation shaft (3) is used to separate white melon seeds; A safety component is located between the sprocket (1) and the white melon seed separation shaft (3) to provide safety protection for the operation of the white melon seed separator; The safety component includes a safety screw (5) and a connecting rod (6). The safety screw (5) is threaded into the inside of the sprocket (1). One end of the connecting rod (6) is fixedly connected to one end of the safety screw (5). A connecting ring (4) is fixedly connected to the outer wall of the white melon seed separating shaft (3). The connecting rod (6) engages with a hole on one side of the connecting ring (4). Connecting pieces (7) are fixedly connected to both sides of the safety screw (5). Multiple fixing blocks (9) are fixedly connected to one end of the white melon seed separating shaft (3). A rotating bar (10) is fixedly connected between two adjacent fixing blocks (9). A positioning rod (11) is fixedly connected to the outer wall of the rotating bar (10).

2. The stone-proof safety clutch for a white melon seed separator according to claim 1, characterized in that: The length of the positioning rod (11) is less than the diameter of the white melon seed separation shaft (3), and the fixing block (9) is located on one side of the center point of the white melon seed separation shaft (3).

3. The stone-proof safety clutch for a white melon seed separator according to claim 1, characterized in that: One end of the sprocket (1) is fixedly connected to a connecting block (8), and the connecting block (8) is in contact with the positioning rod (11).

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