A feeding device for rice-turtle symbiotic farming

Abstract

This utility model relates to the field of agricultural ecological aquaculture equipment technology, specifically a feeding device for rice-turtle symbiotic farming. The bottom of the feed cylinder is inclined with a discharge pipe, inside which a feeding screw is installed. A support rod is fixedly installed inside the feed cylinder, and a first housing is fixedly installed in the middle of the support rod. A second housing is fixedly installed below the feed cylinder. One end of a positioning shaft is equipped with a first drive shaft that inserts into the second housing and is rotatably connected to the second housing via a positioning bearing. One end of the first drive shaft is equipped with a first drive bevel gear located inside the second housing. The design, which links the movement of the bottom wheel with the feeding screw, solves the problem of uneven feeding during manual distribution. The feeding screw rotates stably within the discharge pipe, coordinating with the movement of the device to ensure that the feed evenly covers the feeding platform, avoiding localized accumulation or gaps at distant points, reducing competition for food among the turtles, ensuring feeding opportunities for weaker individuals, and promoting uniform growth of the turtle population.

Description

Technical Field

[0001] This utility model relates to the field of agricultural ecological breeding equipment technology, specifically a feeding device for rice-turtle symbiotic farming. Background Technology

[0002] The rice-turtle symbiotic farming model achieves the green production goal of "two uses of water and two harvests from one field" through the ecological mutual promotion relationship between rice and turtles. In this model, feeding and management of uneaten feed are key factors affecting the growth quality of turtles and the aquatic environment. Feeding platforms are set up in the shallow water area of ​​the rice field or the turtle's habitat to facilitate observation of feeding and cleaning of uneaten feed.

[0003] Currently, the industry commonly uses manual feeding, but this method has the following significant drawbacks: Manual feeding relies on the experience of the farmers, making it difficult to precisely control the feeding range and density. This results in uneven distribution of feed on the feeding platform, with feed exhibiting a phenomenon of "local accumulation and lack of feed at distant locations." Local accumulation of feed leads to concentrated competition among the turtles for food, with strong and robust individuals occupying dominant feeding sites and overeating, increasing the burden on the hepatopancreas and raising the risk of fatty liver disease. Meanwhile, weaker individuals (such as juvenile or diseased turtles) in distant areas lacking feed do not get enough food and their growth rate lags behind the average level, ultimately leading to a significant difference in size among the turtle population that exceeds the normal range. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a feeding device for rice-turtle symbiotic farming.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a feeding device for rice-turtle symbiotic farming, comprising a feed cylinder, two support rods fixedly installed on one side of the feed cylinder, a support rod at the lower end of the support rods, two support frames symmetrically arranged at the lower end of the feed cylinder, a bottom wheel between the two support frames, and positioning shafts at both ends of the bottom wheel that penetrate the support frames and are rotatably connected to the support frames through positioning bearings; The bottom of the material cylinder is inclined with a discharge pipe, and a feeding screw is installed inside the discharge pipe. A support rod is fixedly installed inside the material cylinder. The upper end of the feeding screw is provided with a rotating shaft that passes through the support rod and is rotatably connected to the support rod through a positioning bearing. A first housing is fixedly installed in the middle part of the support rod. A second housing is fixedly installed below the material cylinder. One end of the positioning shaft is provided with a first drive shaft that is inserted into the second housing and rotatably connected to the second housing through a positioning bearing. One end of the first drive shaft is provided with a first drive bevel gear located inside the second housing. A second drive shaft is vertically rotatably installed at the bottom of the material cylinder. The bottom end of the second drive shaft is provided with a first driven bevel gear located inside the second housing and meshing with the first drive bevel gear. The top end of the rotating shaft is provided with a second driven bevel gear located inside the first housing. The top end of the second drive shaft is provided with a second drive bevel gear located inside the first housing and meshing with the second driven bevel gear.

[0006] Furthermore, an improvement of this utility model is that the rotating shaft and the feeding screw are integrally formed.

[0007] To facilitate assembly of the second housing, the present invention is improved by fixing the second housing to the bottom of the material cylinder by means of a vertical rod, and fixing the top end of the vertical rod to the bottom end of the material cylinder by screws.

[0008] To improve the stability of this structure during material discharge, the following improvements are made: the transmission ratio between the first driving bevel gear and the first driven bevel gear is 1:3, and the included angle between the rotating shaft and the second transmission shaft is 50°-70°.

[0009] Furthermore, the present invention includes an improvement in that a sealed bearing is embedded in the bottom of the material cylinder, the outer ring of the sealed bearing is interference-fitted with the material cylinder, and the inner ring of the sealed bearing is interference-fitted with the second drive shaft.

[0010] (III) Beneficial Effects Compared with the prior art, this utility model provides a feeding device for rice-turtle symbiotic farming, which has the following beneficial effects: Even feed distribution improves breeding results: The design of the bottom wheel movement and the feeding screw linkage solves the problem of uneven feeding by manual spreading. The feeding screw rotates stably in the discharge pipe and moves with the device to make the feed evenly cover the feeding platform, avoiding local accumulation or missing parts at the far end, reducing the phenomenon of turtles competing for food, ensuring the feeding opportunities of weaker individuals, and promoting the uniform growth of the turtle population. The device features a highly efficient, interconnected structure that saves on labor costs: the bottom wheel drives the positioning shaft, transmission shaft, and bevel gear set (first drive bevel gear, first driven bevel gear, second drive bevel gear, and second driven bevel gear) to work together. No additional power source is required; simply pushing the handle is enough to achieve automatic feeding, reducing the labor intensity of farmers and improving feeding efficiency. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of the feed cylinder of this utility model; Figure 3 This utility model Figure 2 The main view; Figure 4 This is a schematic diagram of the mating structure between the first driving bevel gear and the first driven bevel gear in this utility model; Figure 5 This is a schematic diagram of the cooperation structure between the second driving bevel gear and the second driven bevel gear in this utility model; In the diagram: 1. Material cylinder; 2. Handrail; 3. Support rod; 4. Support frame; 5. Bottom wheel; 6. Positioning shaft; 7. Discharge pipe; 8. Feeding screw; 9. Rotating shaft; 10. Support rod; 11. First housing; 12. Second drive shaft; 13. First drive shaft; 14. First driven bevel gear; 15. First drive bevel gear; 16. Second drive bevel gear; 17. Second driven bevel gear; 18. Second housing. Detailed Implementation

[0012] 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.

[0013] Please see Figures 1-5 This utility model discloses a feeding device for rice-turtle symbiotic farming, including a feed cylinder 1, two support rods 2 fixedly installed on one side of the feed cylinder 1, a support rod 3 at the lower end of the support rods 2, two support frames 4 symmetrically arranged at the lower end of the feed cylinder 1, a bottom wheel 5 between the two support frames 4, and a positioning shaft 6 through the support frame 4 and rotatably connected to the support frame 4 through a positioning bearing at both ends of the bottom wheel 5. The bottom of the material cylinder 1 is inclined with a discharge pipe 7, and a feeding screw 8 is provided inside the discharge pipe 7. A support rod 10 is fixedly installed inside the material cylinder 1. The upper end of the feeding screw 8 is provided with a rotating shaft 9 that passes through the support rod 10 and is rotatably connected to the support rod 10 through a positioning bearing. A first housing 11 is fixedly installed in the middle part of the support rod 10. A second housing 18 is fixedly installed below the material cylinder 1. One end of the positioning shaft 6 is provided with a first transmission shaft 13 that is inserted into the second housing 18 and rotatably connected to the second housing 18 through a positioning bearing. One end of the rotating shaft 13 is provided with a first drive bevel gear 15 located inside the second housing 18. The bottom of the material cylinder 1 is vertically rotatably provided with a second transmission shaft 12. The bottom end of the second transmission shaft 12 is provided with a first driven bevel gear 14 located inside the second housing 18 and meshing with the first drive bevel gear 15. The top end of the rotating shaft 9 is provided with a second driven bevel gear 17 located inside the first housing 11. The top end of the second transmission shaft 12 is provided with a second drive bevel gear 16 located inside the first housing 11 and meshing with the second driven bevel gear 17.

[0014] The second box 18 is fixed to the bottom of the material cylinder 1 by a vertical rod, and the top of the vertical rod is fixed to the bottom of the material cylinder 1 by screws.

[0015] The transmission ratio between the first driving bevel gear 15 and the first driven bevel gear 14 is 1:3, and the included angle between the rotating shaft 9 and the second transmission shaft 12 is 50°-70°.

[0016] Feed filling: Pour the feed required for breeding into the feed cylinder 1. The feed cylinder 1 serves as a storage container for feed, providing a material basis for subsequent feeding. Preparation for moving the device: The farmer holds the handle 2, and the support rod 3 at the lower end of the handle 2 contacts the ground to form support. By applying force to push the whole device, the bottom wheels 5 between the support frame 4 at the lower end of the feed cylinder 1 roll along the surface of the feeding platform, driving the whole device to move. Power transmission start-up: When the bottom wheel 5 rotates, the positioning shafts 6 at both ends of it rotate accordingly. The positioning shafts 6 pass through the support frame 4 and are kept in a stable rotational state through the positioning bearings. The rotation of the positioning shafts 6 drives the first drive shaft 13 connected at one end to rotate synchronously. The first drive shaft 13 extends into the second housing 18 and is kept in a rotational connection with the second housing 18 through the positioning bearings. Gear linkage: The first drive bevel gear 15 at the end of the first drive shaft 13 rotates inside the second housing 18, and the first driven bevel gear 14 meshing with the first drive bevel gear 15 rotates accordingly, thereby driving the vertically arranged second drive shaft 12 to rotate.

[0017] The bottom of the second drive shaft 12 is connected to the bottom of the feed cylinder 1 through a sealed bearing. The outer ring of the sealed bearing is interference-fitted with the feed cylinder 1, and the inner ring is interference-fitted with the second drive shaft 12, which ensures the stable rotation of the second drive shaft 12 and prevents feed leakage from the feed cylinder 1. Feeding mechanism operation: The second drive bevel gear 16 at the top of the second drive shaft 12 is located inside the first housing 11, and the second driven bevel gear 17 meshing with the second drive bevel gear 16 rotates synchronously, thereby driving the rotating shaft 9 to rotate.

[0018] The rotating shaft 9 and the feeding screw 8 are integrally formed.

[0019] The lower end of the rotating shaft 9 is integrally formed with the feeding screw 8, and passes through the support rod 10 and is kept stable by the positioning bearing. The support rod 10 is fixed inside the material cylinder 1 to provide support for the rotating shaft 9.

[0020] The rotating shaft 9 drives the feeding screw 8 to rotate inside the discharge pipe 7, which is inclined at the bottom of the feed cylinder 1, pushing the feed in the feed cylinder 1 to the outside along the discharge pipe 7. Uniform feeding completed: As the device moves continuously along the feeding platform via the bottom wheel 5, the feeding screw 8 continuously feeds the feed from the discharge pipe 7 at a uniform speed, ultimately achieving uniform distribution of the feed on the feeding platform. The positioning bearing reduces component wear and ensures smooth rotation in the connection between the positioning shaft 6 and the support frame 4, the first transmission shaft 13 and the second housing 18, and the rotating shaft 9 and the support rod 10. A sealed bearing is embedded in the bottom of the material cylinder 1. The outer ring of the sealed bearing is interference-fitted with the material cylinder 1, and the inner ring of the sealed bearing is interference-fitted with the second drive shaft 12. The sealed bearing prevents feed leakage from the feed cylinder 1, while ensuring stable rotation of the second drive shaft 12; The rotating shaft 9 and the feeding screw 8 are integrally molded to enhance structural strength and prevent breakage at the connection point; The first housing 11 and the second housing 18 respectively protect the internal gear set, prevent external impurities from interfering, and extend service life; The second housing 18 is fixed to the bottom of the material cylinder 1 by a vertical rod, and the top of the vertical rod is fixed with screws for easy assembly and maintenance. The device can be moved flexibly on the feeding platform in shallow water areas of rice paddies or turtle habitats. The inclined design of the discharge pipe 7 is adapted to shallow water environments, preventing feed from sinking to the bottom and forming uneaten food. Uniform feeding reduces feed waste and minimizes pollution of the aquatic environment by uneaten food, meeting the green ecological requirements of the rice-turtle symbiosis model. The device can be easily pushed by the aquaculture personnel using the handle 2, and the support rod 3 provides stable support. The overall structure is lightweight and flexible, suitable for rice-turtle symbiotic farming scenarios of different scales, and easy to promote and apply.

[0021] The positioning bearing in the feeding device supports the positioning shaft 6, the first drive shaft 13, and the rotating shaft 9, ensuring smooth rotation of all components and reducing wear. The rice-turtle symbiotic environment is humid and prone to feed debris and other impurities, necessitating the selection of bearings with strong corrosion resistance and excellent dustproof performance. Deep groove ball bearings are suitable for connecting the positioning shaft 6 and the support frame 4, and the first drive shaft 13 and the second housing 18, due to their simple structure, low coefficient of friction, and ability to withstand radial and certain axial loads. For the connection between the rotating shaft 9 and the support rod 10, if a larger axial load is required, an angular contact ball bearing can be selected.

[0022] Materials and Protection: Stainless steel bearings, such as SS440C, are used to enhance corrosion resistance; bearings with dust covers (ZZ type) or seals (2RS type) are selected to prevent feed debris, moisture, etc. from entering the bearing and extend service life. The sealed bearing is used to connect the bottom of the feed cylinder 1 to the second drive shaft 12. It is necessary to ensure the stable rotation of the second drive shaft 12 while preventing feed leakage from the feed cylinder 1. Recommended type: Choose contact-sealed bearings, such as double-lip rubber-sealed bearings (2RS type). The double-lip design can effectively block feed particles and moisture, resulting in better sealing. If strict requirements are placed on friction resistance, non-contact sealed dust cover bearings (ZZ type) can also be selected, but the sealing performance is relatively weaker. Sealing material: The sealing lip material is nitrile rubber (NBR), which has good oil resistance, abrasion resistance and water resistance, and is suitable for feed environments; if the working temperature is high, fluororubber (FKM) can be selected to improve high temperature resistance. Rated load and speed: Based on the torque and speed transmitted by the second drive shaft 12, select bearings with rated dynamic and static loads that meet the requirements. Since the device speed is relatively low, the rated speed of most bearings can meet the requirements, but it is necessary to ensure the load-bearing capacity of the bearings to avoid bearing damage due to overload.

[0023] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A feeding device for rice-turtle symbiotic farming, comprising a feed cylinder (1), two support rods (2) fixedly installed on one side of the feed cylinder (1), and a support rod (3) provided at the lower end of the support rods (2), characterized in that: Two support frames (4) are symmetrically arranged at the lower end of the material cylinder (1). A bottom wheel (5) is provided between the two support frames (4). The bottom wheel (5) has a positioning shaft (6) at both ends that passes through the support frame (4) and is rotatably connected to the support frame (4) through a positioning shaft (6). The bottom of the material cylinder (1) is inclinedly provided with a discharge pipe (7), and a feeding screw (8) is provided inside the discharge pipe (7). A support rod (10) is fixedly provided inside the material cylinder (1). The upper end of the feeding screw (8) is provided with a rotating shaft (9) that passes through the support rod (10) and is rotatably connected to the support rod (10) through a positioning shaft (6). The middle part of the support rod (10) is fixedly provided with a first housing (11). The bottom of the material cylinder (1) is fixedly provided with a second housing (18). One end of the positioning shaft (6) is provided with a first transmission shaft (13) that is inserted into the second housing (18) and rotatably connected to the second housing (18) through the positioning shaft (6). The first drive shaft (13) has a first drive bevel gear (15) located inside the second housing (18) at one end. The bottom of the material cylinder (1) is vertically rotatably equipped with a second drive shaft (12). The bottom end of the second drive shaft (12) is equipped with a first driven bevel gear (14) located inside the second housing (18) and meshing with the first drive bevel gear (15). The top end of the rotating shaft (9) is equipped with a second driven bevel gear (17) located inside the first housing (11). The top end of the second drive shaft (12) is equipped with a second drive bevel gear (16) located inside the first housing (11) and meshing with the second driven bevel gear (17).

2. The feeding device for rice-turtle symbiotic farming according to claim 1, characterized in that: The rotating shaft (9) and the feeding screw (8) are integrally formed.

3. The feeding device for rice-turtle symbiotic farming according to claim 2, characterized in that: The second box (18) is fixed below the material cylinder (1) by a vertical rod, and the top of the vertical rod is fixed to the lower end of the material cylinder (1) by screws.

4. The feeding device for rice-turtle symbiotic farming according to claim 3, characterized in that: The transmission ratio between the first driving bevel gear (15) and the first driven bevel gear (14) is 1 to 3.

5. A feeding device for rice-turtle symbiotic farming according to claim 4, characterized in that: The included angle between the rotating shaft (9) and the second transmission shaft (12) is 50°-70°.

6. A feeding device for rice-turtle symbiotic farming according to claim 5, characterized in that: A sealed bearing is embedded in the bottom of the material cylinder (1). The outer ring of the sealed bearing is interference-fitted with the material cylinder (1), and the inner ring of the sealed bearing is interference-fitted with the second drive shaft (12).

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