Water chestnut grading device

By designing a water chestnut grading device and using a vibration motor to drive a grading screen to achieve automatic grading of water chestnuts, the problem of low efficiency of manual grading in the deep processing of water chestnuts is solved, the grading efficiency is improved and the cost is reduced.

CN120587130APending Publication Date: 2025-09-05WUHAN POLYTECHNIC UNIVERSITY
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Patent Information

Application Number
CN202511029218.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-25
Publication Date
2025-09-05

AI Technical Summary

Technical Problem

The deep processing of water chestnuts lacks automation and relies on manual grading, which has low efficiency, uncontrollable quality and high production costs.

Method used

A water chestnut grading device is designed, which includes a frame, a feeding system, a conveying device and a grading screen. The grading screen is driven by a vibration motor to vibrate, and the water chestnuts are automatically graded through multi-layer grading grids.

Benefits of technology

The efficiency of water chestnut grading is improved, the labor intensity of workers is reduced, and the production cost is reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a water chestnut grading device which comprises a rack, a feeding system, a grading device, a motor, a gear reducer, a spring and a conveying device. When the equipment works, water chestnuts enter the conveying device through a feeding hopper in the feeding system, the conveying device is driven by a conveying shaft, the conveying shaft drives a conveying belt, partitions and baffles for separating the water chestnuts are installed on the conveying belt, the water chestnuts enter the grading device through the partitions and the baffles on the conveying belt, and a grading screen on the grading device is provided with two layers of grids at different intervals. The water chestnuts are divided into three grades after passing through the grading screen. The water chestnut grading device is different from common grading equipment, the structure is novel, water chestnuts can be effectively graded, the processing efficiency of the water chestnuts is improved, and the processing cost of the water chestnuts is reduced.
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Description

Technical Field

[0001] The present invention relates to the technical field of agricultural product processing machinery in agricultural machinery, and in particular to a water chestnut grading device suitable for automatic grading during water chestnut processing. Background Art

[0002] Water chestnuts are annual aquatic plants of the genus Trapa in the family Trapaeaceae, also known as water chestnuts or sand chestnuts. Their leaves are very flat and smooth, and their seeds are edible. From planting to harvest, the plant takes approximately eight months, with leaves growing for the first three months, followed by the opening of small white flowers and the final fruiting of small water chestnuts. Water chestnuts are a renowned specialty of my country, with a cultivation history of over 3,000 years. There are numerous varieties of water chestnuts, including those with or without horns, two-horned water chestnuts, and four-horned water chestnuts. Water chestnuts are eaten as vegetables, with a sweet texture and rich in starch, protein, unsaturated fatty acids, and various vitamins and trace elements. The Compendium of Materia Medica states that water chestnuts can nourish the spleen and stomach, strengthen the thighs and knees, and enhance strength and invigorate Qi. Water chestnut flour porridge benefits the stomach and intestines and can relieve internal heat. Modern pharmacological experiments have reported that water chestnuts have certain anti-cancer properties.

[0003] Common water chestnuts are horn-like, with two curved corners, and are often dark green or brown. Their shells are relatively hard, with a smooth surface and a hint of luster. Currently, deep processing of water chestnuts is not automated, relying primarily on manual labor. However, manual screening and shelling are inefficient, uncontrollable, and costly. Summary of the Invention

[0004] The purpose of the present invention is to provide a water chestnut grading device, which can complete the grading of water chestnuts during the processing of water chestnuts, improve the efficiency of water chestnut processing, reduce the labor intensity of workers, and reduce production costs.

[0005] The present invention is achieved through the following technical solutions:

[0006] A water chestnut grading device includes a frame, a speed reducer, pulleys, belts, pulleys, a feed hopper, a grading screen, connecting springs, a vibrating motor, a motor, baffles, screens, and a conveyor. The device's feeding system includes a feed hopper, screens, and screens fixed to the frame; the conveyor is mounted on the frame via conveyor shafts at both ends; and the grading screen is connected to the frame via connecting springs. During operation, the water chestnuts pass through the feed hopper, screens, and screens in sequence, being neatly separated and arranged in an orderly manner. Simultaneously, the motor's power supply drives the conveyor shaft after passing through the speed reducer, which in turn drives the conveyor belt to feed the water chestnuts from the feed hopper into the grading screen. The vibrating motor drives the grading screen to vibrate, and after entering the grading screen, the water chestnuts, guided by guide plates, enter the first layer of grading grids, where the first-grade water chestnuts are sorted. They then enter the second layer and pass through the second-grade grading grids, where the second-grade water chestnuts are separated. Finally, all remaining water chestnuts are discharged from the bottom layer, completing the grading process.

[0007] The entire feeding system includes a feeding hopper, baffles and partitions. The partitions are wider at the front end and narrower at the back end to ensure that the water chestnuts can smoothly enter the track and be arranged in order at the outlet. The height and angle of the baffles can be adjusted to ensure that the water chestnuts at the outlet will not be stacked.

[0008] The conveying device includes a conveying shaft and a conveyor belt. The conveying power is provided by a motor, and the speed is adjusted by a reducer to drive the conveying shaft. The conveying shaft drives the conveyor belt to feed the water chestnuts in the feeding hopper into the grading screen.

[0009] The grading device includes a guide plate, a first-level grading grid, a shell, a second-level grading grid, and a vibration motor. After the water chestnuts enter the grading screen, the vibration motor drives the grading screen to vibrate and enters the first-level grading grid under the guidance of the guide plate. The first-level grading grid is inclined at a certain angle. The water chestnuts that meet the requirements flow out of the grading screen along the inclination direction of the grid, and the water chestnuts of the first level size are separated. Then they enter the second layer and pass through the second-level grading grid. The second-level grading grid is inclined at a certain angle. The water chestnuts that meet the requirements flow out of the grading screen along the inclination direction of the grid, and the water chestnuts of the second level size are separated. Finally, all the remaining water chestnuts are discharged from the bottom layer.

[0010] The present invention operates as follows: A water chestnut grading device comprises a frame, a feeding system, a conveyor, a grading device, a motor, and a reducer. Water chestnuts pass through the feeding system, where they are neatly separated and arranged in an orderly manner. Simultaneously, they are transported to the grading device by the conveyor system. A vibrating motor drives the grading screen, which vibrates. Once the water chestnuts enter the grading screen, they are separated into different grades and classified, completing the grading process.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The feeding system of the present invention can automatically and orderly arrange the water chestnuts and accurately transport them to the grading device.

[0013] Compared with other grading devices, the grading device of the present invention has better adaptability to water chestnuts. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention in a certain direction;

[0015] Figure 2 This is a schematic diagram of the main structure of the present invention;

[0016] Figure 3 It is a schematic diagram of the top view of the structure of the present invention;

[0017] Figure 4 for Figure 1 Schematic diagram of the feeding system structure;

[0018] Figure 5 for Figure 1 Schematic diagram of the transmission system structure;

[0019] Figure 6 for Figure 1 Schematic diagram of the cross section of the medium grading screen;

[0020] Among them, 1 is a frame, 2 is a reducer, 3 is a pulley, 4 is a belt, 5 is a pulley, 6 is a feeding hopper, 7 is a grading screen, 8 is a connecting spring, 9 is a vibration motor, 10 is a motor, 11 is a baffle, 12 is a partition, 13 is a conveying device, 131 is a conveying shaft, 132 is a conveyor belt, 71 is a guide plate, 72 is a first-level grading grid, 73 is a shell, and 74 is a second-level grading grid. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] like Figure 1 、 Figure 2 、 Figure 3 As shown, a water chestnut grading device includes a frame 1, a reducer 2, a pulley 3, a belt 4, a pulley 5, a feeding hopper 6, a grading screen 7, a connecting spring 8, a vibration motor 9, a motor 10, a baffle 11, a partition 12, and a conveying device 13.

[0023] like Figure 1 、 Figure 2 As shown in FIG. , the feeding system of the device includes a feeding hopper 6, a baffle 12, and a baffle 11 fixed on the frame 1; the conveying system 13 of the device, whose conveyor belt 132 is installed on the frame 1 through a transmission shaft 131.

[0024] like Figure 3 As shown, combined Figure 4 、 Figure 5 The feeding hopper 7 of the feeding system of this device is installed at the end with the largest spacing between the partitions 12, and the baffle 11 is located in the middle section of the partition 12 behind the feeding hopper 6; its conveying system 13 is a conveyor belt 132 driven by a drive shaft 131, both parts of which are installed on the frame 1, and the feeding system is above the conveyor belt 132.

[0025] like Figure 6 As shown, the grading screen of the device includes a guide plate 71, a first-level grading grid 72, a shell 73, and a second-level grading grid 74. The guide plate 71 is above the grading grids 72 and 73 and is installed on the shell 73. The water chestnuts are divided into different grades through the grading grids.

[0026] like Figure 1 As shown, when the grading device of this device is working, the grading screen is driven by the vibration motor, and the power of the transmission system comes from the motor 10 and is regulated by the reducer.

Claims

1. A water chestnut grading device, characterized by: It includes a frame 1, a reducer 2, a pulley 3, a belt 4, a pulley 5, a feeding hopper 6, a grading screen 7, a link spring 8, a vibration motor 9, a motor 10, a baffle 11, a partition 12, and a conveying device 13.

2. The water chestnut grading device according to claim 1, characterized in that: The feeding system of this equipment is fixed on the frame 1; the conveying device of this equipment is installed on the frame 1 through the conveying shafts at both ends; the grading device 7 of this equipment is installed on the frame 1 through the connecting spring.

3. A water chestnut grading device according to claim 1, characterized in that The feeding system of this equipment includes a feeding hopper 6, a partition 12, and a baffle 11. When working, the water chestnuts pass through the feeding hopper, the partition and the baffle in sequence, and are neatly separated and arranged in order.

4. A water chestnut grading device according to claim 1, characterized in that The conveying device of this equipment includes a conveying shaft 131 and a conveying belt 132. When working, the conveying shaft 131 drives the conveying belt 132 to feed the water chestnuts in the feeding hopper into the grading screen.

5. A water chestnut grading device according to claim 1, characterized in that The grading device 7 of this equipment includes a guide plate 71, a first-level grading grid 72, a shell 73, a second-level grading grid 74, and a vibration motor 9, and is installed on the frame 1 through a connecting spring 8; during operation, the vibration motor 9 drives the grading screen 7 to vibrate, and after the water chestnuts enter the grading screen, they enter the first-level grading grid 72 under the guidance of the guide plate 71, and the water chestnuts of the first size are sorted out, and then enter the second layer and pass through the second-level grading grid 74 to separate the water chestnuts of the second size. Finally, all the remaining water chestnuts are discharged from the bottom layer, completing the grading of the water chestnuts.