Rotary potato shredder

Abstract

This utility model discloses a rotary cutting potato crushing device, including a frame, a hopper, a potato crushing component, and a potato mixing component. The hopper is located on top of the frame and has an openable / closable structure. The potato crushing component includes a first motor, a first shaft, and a blade. The first shaft is horizontally placed at one end of the hopper and passes through it. The first motor drives the first shaft to rotate, and the blade is installed on the first shaft for rotary cutting and crushing the potatoes in the hopper. The potato mixing component includes a second motor, a second shaft, and a mixing paddle. The second shaft is horizontally placed at the other end of the hopper and passes through it. The second motor drives the second shaft to rotate, and the mixing paddle is installed on the second shaft for tumbling and stirring the potato puree in the hopper. The rotation of the first shaft and the second shaft are independent of each other. This crushing device adopts a synergistic approach of rotary cutting and crushing by the potato crushing component and tumbling and stirring by the potato mixing component, which greatly improves the crushing efficiency and uniformity, and effectively ensures the quality of the potato puree.

Description

Technical Field

[0001] This application relates to the field of agricultural product processing equipment technology, and in particular to a rotary cutting potato crushing device, which is mainly used to crush and mash steamed potatoes to provide qualified potato puree raw materials for subsequent potato drying and grinding processes. Background Technology

[0002] In the potato deep processing industry, mashing and pulverizing steamed potatoes is a key step in the processing of many products, such as potato flour and potato mash products. Good mashing results can ensure the uniformity of the potato mash, which is beneficial for subsequent drying and grinding processes, thereby improving the quality of the final product and production efficiency.

[0003] Currently, most existing potato crushing devices only have a shaft-type stirring structure. This traditional shaft-type stirring structure usually has one or more stirring shafts rotating around their own axis in a container. Stirring blades are installed on the stirring shafts, and the potatoes in the container are stirred and crushed by the rotation of the stirring blades.

[0004] However, this traditional structure has many problems and drawbacks in practical applications:

[0005] 1. Poor crushing effect: Since the axial rotary mixing structure mainly relies on the rotation of the mixing blades to drive the movement and crush the potatoes, its crushing method is relatively simple. During the mixing process, the potatoes can only make an approximate circular motion with the rotation direction of the mixing blades, making it difficult to achieve all-round and multi-angle crushing. For some hard or irregularly shaped potato pieces, incomplete crushing is likely to occur, resulting in large particles still remaining in the final potato puree. This affects the uniformity and fineness of the potato puree, which is not conducive to subsequent drying and grinding operations, and reduces the quality of the product.

[0006] 2. Low crushing efficiency: During the rotation of the axial-rotor mixing structure, the contact area and force between the mixing blades and the potatoes are relatively limited. In order to achieve a certain crushing effect, it is often necessary to extend the mixing time, which not only increases the production cycle and reduces production efficiency, but also consumes more energy. Moreover, prolonged mixing may cause excessive precipitation of starch and other components in the potatoes, affecting the taste and nutritional content of the mashed potatoes.

[0007] 3. Poor equipment adaptability: Potatoes of different varieties and at different stages of maturity have significant differences in texture and hardness. Existing rotary mixing structures are difficult to adjust flexibly according to these characteristics of potatoes. For softer potatoes, over-mixing may occur, resulting in overly soft potato puree. For harder potatoes, it may not be able to break them up effectively, resulting in unsatisfactory mixing results. This poor equipment adaptability limits its application in different production scenarios.

[0008] 4. High maintenance costs: During long-term use, the mixing blades of the shaft-rotating mixing structure are prone to wear, deformation, or even breakage due to frequent friction and collision with potatoes. Once the mixing blades are damaged, the entire mixing shaft needs to be disassembled and replaced, which is a complicated maintenance process. This not only increases the downtime of the equipment but also raises maintenance costs.

[0009] Therefore, it is particularly important to overcome the aforementioned problems and shortcomings in existing technologies and design a mixing device that can efficiently and uniformly crush and mash steamed potatoes to improve production efficiency and product quality. Utility Model Content

[0010] The problem this application aims to solve is that existing potato crushing devices suffer from poor crushing effect, low crushing efficiency, poor equipment adaptability, and high maintenance costs.

[0011] To address the aforementioned technical problems, this application provides a rotary potato crushing device, comprising a frame, a hopper, a potato crushing assembly, and a potato mixing assembly. The hopper is located on top of the frame and has an openable / closable structure at the top. The potato crushing assembly includes a first motor, a first shaft, and a blade. The first shaft is horizontally positioned at one end of the hopper and passes through it. The first motor drives the first shaft to rotate, and the blade is mounted on the first shaft for rotary crushing the potatoes inside the hopper. The potato mixing assembly includes a second motor, a second shaft, and a mixing paddle. The second shaft is horizontally positioned at the other end of the hopper and passes through it. The second motor drives the second shaft to rotate, and the mixing paddle is mounted on the second shaft for tumbling and mixing the potato paste inside the hopper. The rotation of the first shaft and the second shaft are independent of each other.

[0012] Because the potato crushing device of this application is designed with a potato crushing component and a potato mixing component, the crushing efficiency and uniformity are greatly improved by the rotary cutting and crushing of the potato crushing component and the tumbling and stirring of the potato mixing component, which effectively ensures the quality of potato puree and solves the problems of poor crushing effect, low crushing efficiency, poor equipment adaptability and high maintenance cost of existing potato crushing devices.

[0013] By adopting the above technical solution, this utility model has achieved the following significant technical effects:

[0014] 1. Significantly improved crushing effect: The blades of the potato crushing component use high-speed rotary cutting to initially crush the potatoes, cutting them into smaller particles; the spiral mixing paddle of the potato mixing component then tumbles and mixes the chopped potato puree from all directions, making the texture of the puree more uniform and delicate. This effectively solves the problems of incomplete crushing and large particles in the puree caused by traditional equipment, providing high-quality potato puree raw materials for subsequent drying and grinding processes, and improving the quality of the final product.

[0015] 2. Significantly improved crushing efficiency: The potato crushing component and the potato mixing component work together. The potato crushing component quickly crushes the potatoes into small particles, while the potato mixing component promptly mixes the potato puree, greatly shortening the crushing time. This not only reduces the production cycle and improves production efficiency, but also reduces energy consumption and avoids the problem of excessive precipitation of starch and other components due to prolonged mixing, thus ensuring the taste and nutritional content of the potato puree.

[0016] 3. Enhanced equipment adaptability: The rotary cutting and crushing device of the present invention can be flexibly adjusted according to different varieties and maturity levels of potatoes. The rotary cutting and crushing method of the potato crushing component can adapt to potatoes of different hardness. The spiral mixing paddle of the potato mixing component can reasonably mix according to the viscosity and uniformity requirements of the potato puree, ensuring good crushing effect in different production scenarios, thus improving the versatility and adaptability of the equipment.

[0017] 4. Significantly reduced maintenance costs: The blades adopt a detachable bolt connection structure. When the blades wear out, only the blades need to be replaced. There is no need for large-scale disassembly and repair of the entire potato crushing assembly, which greatly simplifies the maintenance process and reduces equipment downtime. At the same time, the mixing paddle has a reasonable structural design, high bending strength, and is not easily damaged, which reduces the frequency of equipment maintenance and maintenance costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment.

[0019] Figure 2 This is a top-view structural diagram of the bucket body.

[0020] Figure 3 This is a schematic diagram of the potato crushing component.

[0021] Figure 4 This is a schematic diagram of the potato mixing component.

[0022] Figure 5 This is a schematic diagram of the mixing paddle.

[0023] In the diagram: 1. Frame; 2. Bucket; 3. Cover plate; 4. Cylinder; 5. Potato crushing assembly; 51. First motor; 52. First shaft; 53. Cutter disc; 54. Blade; 55. Reducer; 6. Potato mixing assembly; 61. Second motor; 62. Second shaft; 63. Bushing; 64. Mixing paddle; 641. Frame rod; 642. Paddle blade; 643. Connecting rod. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Example

[0025] This application relates to a rotary potato crushing device, such as... Figure 1-5 As shown, the crushing device uses a frame 1 as its basic support component. The frame 1 adopts a metal frame structure to ensure sufficient strength and stability. A U-shaped hopper 2 is fixedly installed on the top of the frame 1. The hopper 2 is made of 304 stainless steel, and the inner wall is mirror-polished with a roughness Ra≤0.8μm to effectively prevent material residue. The hopper 2 is fixed to the frame 1 by bolts through corner plates. This connection method facilitates the installation and disassembly of the hopper 2, while also ensuring the connection strength and stability between the hopper 2 and the frame 1. A cover plate 3 is provided on the top of the hopper 2. The cover plate 3 is connected to the hopper 2 by hinges, allowing the cover plate 3 to... The cylinder 4 is symmetrically arranged on both sides of the frame 1. The cylinder 4 is a standard SC160×500 cylinder with a diameter of 160mm, a stroke of 500mm, a working pressure of 0.5-0.8MPa, an opening angle of 0-90°, and an opening time of ≤8 seconds. The end of the cylinder 4 is hinged to the frame 1 through a fisheye joint, and the top of the cylinder 4 is also hinged to the cover plate 3 through a fisheye joint. By controlling the extension and retraction of the cylinder 4, the cover plate 3 can be driven to lift and open, which facilitates the feeding of steamed potatoes into the hopper 2 and subsequent cleaning and maintenance of the inside of the hopper 2.

[0026] The potato crushing assembly 5 mainly consists of a first motor 51, a first shaft 52, a cutter disc 53, and blades 54. The first shaft 52 is horizontally positioned at one end of the bucket body 2 and extends through the bucket body 2. The first shaft 52 is made of 40Cr alloy steel with a quenched and tempered finish, has a diameter of φ50mm, a length of 1200mm, and a surface hardness of HRC45-50. The first shaft 52 is connected to the bucket body 2 via a bearing seat, and the bearing seat is bolted to the bucket body 2. The first shaft 52 is fitted inside the bearing seat. This design allows the first shaft 52 to rotate freely within the bucket body 2 without interfering with it. The first motor 51 is located on one side of the frame 1 and is bolted to the frame 1. The first motor 51 is connected to the first shaft 52 via a type A key with keyway dimensions of 22×14×100mm and a fit accuracy of H7 / k6. Due to the high motor speed, to ensure the potato crushing effect and equipment stability, this embodiment uses a geared motor with a reduction structure, specifically a worm gear reducer 55 with unidirectional transmission. The first motor 51 is a YE3-200L-4 type three-phase asynchronous motor with a rated power of 30kW and a speed of 1470r / min, paired with a WPA200 type worm gear reducer 55 with a transmission ratio of 20:1 and an output torque of 5800N·m. The upper part of the first shaft 52 is uniformly... Multiple cutter discs 53 are arranged in an alternating pattern. Each cutter disc 53 has a diameter of φ300mm, a thickness of 12mm, and is made of 65Mn spring steel. Adjacent cutter discs 53 have a 90° phase difference, forming a three-dimensional cutting space. During the crushing process, the linear velocity of the blades 54 reaches 18.8m / s. Combined with the negative pressure suction effect of the φ150mm discharge port at the bottom of the bucket 2, multi-stage crushing of materials is achieved. This structure can crush cooked potatoes to a particle size of ≤3mm in ≥95% of the total. The cutter discs 53 are connected and fixed to the first shaft 52 by welding. Blades 54 are symmetrically arranged on the upper part of the two long sides of each cutter disc 53, and the 9Cr18MoV stainless steel blades 54 are fixed with M10×30 hexagon socket bolts. Blade 54 adopts a single-sided cutting design with a cutting edge angle of 30° and a back angle of 5°. It is vacuum hardened to a hardness of HRC58-62. The replacement cycle of blade 54 is adjusted according to the hardness of the material, and it should be replaced at least once every 50 tons of potatoes processed. When the first motor 51 starts, it drives the first shaft 52 to rotate through the key connection, which in turn drives the cutter head 53 and blade 54 to rotate. During the rotation, blade 54 performs rotary cutting and crushing operation on the steamed potatoes placed in the bucket 2, cutting them into smaller particles. Since blade 54 will wear during long-term use, a detachable bolt connection structure is adopted to facilitate replacement after blade 54 wears out, reducing equipment maintenance costs.

[0027] The potato mixing assembly 6 includes a second motor 61, a second shaft 62, a bushing 63, and a mixing paddle 64. The second shaft 62 is horizontally positioned at one end of the bucket body 2 and extends through the bucket body 2. The second shaft 62 is connected to the bucket body 2 via a bearing seat. The second shaft 62 is made of 45# steel with a tempered finish, a diameter of φ70mm, a length of 300mm, and a chrome-plated surface with a thickness of 0.03mm. The bearing seat is bolted to the bucket body 2, and the second shaft 62 is fitted inside the bearing seat to ensure that the second shaft 62 can rotate freely within the bucket body 2 without interfering with it. The second motor 61 is arranged on one side of the frame 1, and... The second motor 61 is fixed to the frame 1 by bolts. One end of the second motor 61 is connected to one end of the second shaft 62 by a type B key. The keyway size is 20×12×90mm. The second motor 61 is the same model as the first motor 51 and is equipped with a WPA180 type reducer 55 with a transmission ratio of 15:1 and an output torque of 4200N·m. Similarly, a geared motor (worm gear reducer 55) with a reduction structure is used to drive the second shaft 62 to rotate. A spiral agitator 64 is arranged on the upper part of the second shaft 62. The cross-section of the agitator 64 is a straight groove. A bushing 63 is arranged at the other end of the agitator 64. The second shaft 62 is mounted on the first shaft 52 and connected to it via bearings. This design allows the second shaft 62 and the first shaft 52 to rotate independently without interference. The agitator 64 is specifically composed of a frame rod 641, blades 642, and a connecting rod 643. The frame rods 641 are arranged on the outside of the second shaft 62 and the bushing 63 and extend outward. Blades 642 are arranged spirally along the axial direction of the second shaft 62 between the frame rods 641. The blades 642 are 80mm wide, 8mm thick, and made of 316L stainless steel. The two ends of the blades 642 are respectively connected to the frame rods 641 and the bushing 63. 1. The joint is fully welded with a weld height ≥6mm and is inspected by 100% PT flaw detection. To improve the bending strength of the blade 642, a connecting rod 643 is placed horizontally between the support rods 641, penetrating the blade 642. The connecting rod 643 is made of φ25mm solid round steel. The two ends of the connecting rod 643 are welded to the support rods 641 respectively. When the second motor 61 starts, it drives the second shaft 62 to rotate, which in turn drives the mixing paddle 64 to rotate. During the rotation, the mixing paddle 64 turns and stirs the potato puree after it has been chopped by the potato crushing component 5, making the texture of the potato puree more uniform and preparing it for the subsequent drying and grinding processes.

[0028] When using this rotary potato crushing device, firstly, control cylinder 4 to lift and open cover plate 3, place the steamed potatoes into hopper 2, then control cylinder 4 to close cover plate 3, start first motor 51 and second motor 61. First motor 51 drives the blade 54 of potato crushing component 5 to rotate, rotary crushing the potatoes; at the same time, second motor 61 drives the mixing paddle 64 of mixing component 6 to rotate, turning and mixing the chopped potato puree. After a period of mixing operation, turn off the motor, control cylinder 4 to open cover plate 3, and take out the mixed potato puree from hopper 2, which can then be used for subsequent drying and grinding processes.

[0029] The rotary potato crushing device of this embodiment effectively solves the problem of poor crushing effect caused by the traditional potato crushing device having only a shaft-rotary stirring structure by combining the potato crushing component 5 and the potato mixing component 6. It can realize efficient crushing and mud-making operation of steamed potatoes, improving production efficiency and product quality.

Claims

1. A rotary potato chopping device, characterized in that: include Frame, bucket, potato crushing assembly, and potato mixing assembly; The bucket body is located on the top of the frame, and the top of the bucket body has an openable and closable structure; The potato crushing assembly includes a first motor, a first shaft, and a blade. The first shaft is horizontally placed at one end of the bucket and passes through it. The first motor drives the first shaft to rotate. The blade is installed on the first shaft for rotary cutting and crushing potatoes inside the bucket. The potato mixing assembly includes a second motor, a second shaft, and a mixing paddle. The second shaft is horizontally placed at the other end of the bucket and passes through it. The second motor drives the second shaft to rotate. The mixing paddle is installed on the second shaft to turn and stir the potato paste in the bucket. The rotation of the first shaft and the second shaft is independent of each other.

2. The rotary potato chopping device according to claim 1, characterized in that: The bucket body has a U-shaped longitudinal section and is fixedly connected to the frame via connectors.

3. The rotary potato chopping device according to claim 1, characterized in that: The top of the bucket body has an openable and closable structure, which is a cover plate connected to the top of the bucket body via hinges.

4. The rotary potato chopping device according to claim 3, characterized in that: It also includes cylinders for driving the opening and closing of the cover plate, with the cylinders symmetrically arranged on both sides of the frame and the piston rods connected to the cover plate.

5. The rotary potato chopping device according to claim 1, characterized in that: The blade is detachably connected to the first shaft.

6. The rotary potato chopping device according to claim 1, characterized in that: The mixing paddle includes a frame and paddle blades, with the paddle blades mounted on the frame.

7. The rotary potato chopping device according to claim 6, characterized in that: The mixing paddle also includes a connecting rod, which is connected between the frame rods.

8. The rotary potato chopping device according to claim 1, characterized in that: The first shaft and the second shaft are respectively connected to the bucket body through bearing seats.

9. The rotary potato chopping device according to claim 1, characterized in that: Both the first motor and the second motor are connected to the first shaft and the second shaft respectively via key connections.

10. The rotary potato chopping device according to claim 6, characterized in that: The blades of the mixing paddle are arranged in a spiral shape.

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