A grading and sorting device suitable for the harvesting of crayfish

Abstract

The utility model discloses a kind of grading screening equipment suitable for crayfish fishing, it is related to crayfish breeding technical field, including bearing part and screening part, bearing part has bearing base, three bearing collection ports and corresponding detachable collection box, collection box is equipped with bottom plate by chute, bearing base is rotatable bearing cover;Screening part contains screening motor, screening cover, three equidistance and same diameter screening bearing ring and screening column, screening column is formed conical screening net along the circular array of screening cover rotation center, one end is connected with motor output shaft fixed screening cover, other end is connected bearing feed hopper.Working time, crayfish enters conical screening net from feed hopper, motor drives screening net rotation, small, medium, large specification crayfish respectively through the screening column gap between different screening bearing ring, from corresponding collection port falls into collection box, realize automation, accurate grading, adapt to scale-up breeding demand, help crayfish industry chain quality and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of crayfish farming technology, specifically to a grading and screening device suitable for crayfish harvesting. Background Technology

[0002] With the booming development of freshwater aquaculture, crayfish, with its delicious meat, rich nutritional value, and broad market demand, has become an important economic species in my country's aquaculture sector. In recent years, the scale of crayfish farming has been continuously expanding, evolving from traditional rice-paddy co-culture and pond farming to intensive, factory-style farming, with the industry model gradually upgrading towards large-scale and standardized operations. However, in the harvesting, processing, and sales of crayfish, grading and screening, as a crucial preliminary step, directly impacts the market value of the product and the quality of subsequent processing. Currently, the market demand for crayfish grading is becoming increasingly refined, with significant differences in price and processing uses for crayfish of different sizes. Therefore, achieving rapid and accurate grading of crayfish has become one of the core demands within the industry.

[0003] In existing technologies, the grading and sorting of crayfish mainly relies on two methods: traditional manual sorting and simple tool sorting. Manual sorting is currently the most common method used by small and medium-sized farmers and individual fishermen. Operators classify and place crayfish of different sizes by visual observation and manual sorting. This method not only consumes a lot of labor and time costs and has extremely low sorting efficiency, making it difficult to meet the batch processing needs of large-scale farming scenarios; moreover, it is affected by factors such as differences in the operator's subjective judgment and physical exertion, resulting in unstable sorting accuracy and easy problems of mixed sizes, leading to inconsistent product quality and affecting subsequent market circulation and processing. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides the following technical solution: a grading and screening device suitable for crayfish harvesting, comprising:

[0005] The support portion includes a support base;

[0006] The screening section includes screening columns mounted on a support base. A screening cover is fixedly mounted on one end of the screening column and fixedly mounted on the output shaft of the screening motor. The screening columns are arranged in a circular array along the rotation center of the screening cover to form a conical screening screen. A support feed hopper for feeding is provided at the other end of the screening column.

[0007] Furthermore, the screening column is fixedly equipped with screening support ring three, screening support ring two, and screening support ring one. The screening support ring three, screening support ring two, and screening support ring one are equidistantly arranged, and the diameters of the screening support ring three, screening support ring two, screening support ring one, and screening cover are the same.

[0008] Furthermore, the three screening support rings, two screening support rings, one screening support ring, and the screening cover are all rotatably mounted on the support base. A support collection port one is provided below the three screening support rings and two screening support rings, a support collection port two is provided below the two screening support rings and one screening support ring, and a support collection port three is provided below the one screening support ring and the screening cover.

[0009] Furthermore, below each of the three collection ports, there are corresponding collection boxes for collection, namely, collection box one, collection box two, and collection box three.

[0010] Furthermore, the three carrying collection boxes are detachably mounted on the base plate via sliding grooves.

[0011] Furthermore, a bearing cover is rotatably mounted on the bearing base, and the bearing base is fixedly mounted on the base plate.

[0012] The advantages of this utility model compared with the prior art are:

[0013] 1. Significant efficiency and cost advantages: The automated operation of the motor-driven conical screening screen replaces the traditional manual screening, realizing continuous batch grading of crayfish, greatly reducing labor and time costs, and effectively meeting the batch processing needs of large-scale farming.

[0014] 2. Stable and controllable grading accuracy: Through the design of different gaps in the screening column and the standardized mechanical structure, crayfish are accurately divided into three sizes: "small", "medium" and "large". This avoids the problem of mixed sizes caused by differences in subjective human judgment, ensures uniform product quality, and helps to "price according to grade and process according to demand".

[0015] 3. Practical structure and empowers industrial upgrading; the equipment adopts a reasonable design such as detachable collection box and integrated layout, making operation and maintenance convenient; at the same time, it promotes the transformation of the grading process from extensive to standardized, providing support for the consistency of raw materials and the optimization of market pricing in subsequent processing, and helping the crayfish industry chain to improve quality and efficiency. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 3 This is a partial structural diagram of the screening section of this utility model.

[0019] Figure 4 This is a partial structural cross-sectional view of the screening section of this utility model.

[0020] Figure 5 This is a schematic diagram of a partial structure of the bearing part of this utility model. Figure 1 .

[0021] Figure 6 This is a schematic diagram of a partial structure of the bearing part of this utility model. Figure 2 .

[0022] Figure 7 This is a partial structural cross-sectional view of the load-bearing part of this utility model.

[0023] Reference numerals: 1-Screening section; 2-Bearing section; 101-Screening motor; 102-Screening cover; 103-Screening bearing ring one; 104-Screening bearing ring two; 105-Screening bearing ring three; 106-Screening column; 201-Bearing collection port one; 202-Bearing collection port two; 203-Bearing collection port three; 204-Bearing base; 205-Bearing cover; 206-Bearing feed hopper; 207-Bearing collection box one; 208-Bearing collection box two; 209-Bearing collection box three. Detailed Implementation

[0024] 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.

[0025] like Figures 1 to 7 As shown, a grading and screening device suitable for crayfish harvesting includes a screening section 1 and a carrying section 2.

[0026] like Figures 1 to 7 As shown, the supporting unit 2 includes a first supporting collection port 201, a second supporting collection port 202, a third supporting collection port 203, a supporting base 204, a supporting cover 205, a supporting feed hopper 206, a first supporting collection box 207, a second supporting collection box 208, and a third supporting collection box 209. Below the first supporting collection port 201, the second supporting collection port 202, and the third supporting collection port 203, respectively, are correspondingly arranged supporting collection boxes 207, 208, and 209 for collection. The first supporting collection boxes 207, 208, and 209 are detachably mounted on the base plate via sliding grooves. The supporting cover 205 is rotatably mounted on the supporting base 204, and the supporting base 204 is fixedly mounted on the base plate.

[0027] like Figures 1 to 7As shown, the screening unit 1 includes a screening motor 101, a screening cover 102, a screening support ring 103, a screening support ring 204, a screening support ring 305, and a screening column 106. The screening column 106 is mounted on the support base 204. The screening cover 102 is fixedly mounted on one end of the screening column 106. The screening cover 102 is fixedly mounted on the output shaft of the screening motor 101. The screening columns 106 are arranged in a circular array along the rotation center of the screening cover 102 to form a conical screening screen. The other end of the screening column 106 is provided with a support feed hopper 206 for feeding materials. The support feed hopper 206 is fixedly mounted on the base plate.

[0028] like Figures 1 to 7 As shown, a screening support ring 105, a screening support ring 2 104, and a screening support ring 1 103 are fixedly installed on the screening column 106. These rings are equidistant and have the same diameter. The screening support rings 105, 2 104, 1 103, and the screening cover 102 are all rotatably mounted on the support base 204. A collection port 1 201 is located below the screening support rings 105 and 2 104, a collection port 2 202 is located below the screening support rings 104 and 1 103, and a collection port 203 is located below the screening support rings 1 103 and the screening cover 102.

[0029] like Figures 1 to 7 As shown, this utility model discloses a grading and screening device suitable for crayfish harvesting, the working principle of which is as follows:

[0030] The crayfish to be graded are put into the feeding hopper 206. Under the action of gravity, the crayfish enter the screening column 106 from the feeding hopper 206. Turn on the screening motor 101. The rotation of the screening motor 101 drives the screening cover 102 and the conical screening mesh composed of screening columns 106 to rotate together. At this time, the crayfish in the conical screening mesh are screened by the conical screening mesh under the action of rotation. The smallest crayfish are screened by the screening columns 106 with a relatively small gap between the screening support ring 3 105 and the screening support ring 2 104, and fall into the support collection box 1 207 from the support collection port 1 201. The next smallest crayfish are screened by the screening columns 106 with a slightly larger gap between the screening support ring 2 104 and the screening support ring 1 103, and fall into the support collection box 2 208 from the support collection port 2 202. The largest crayfish are screened between the screening support ring 1 103 and the screening cover 102 and fall into the support collection port 3 203 and finally into the support collection box 3 209 for collection, completing the multiple grading processes of the crayfish.

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