Working method of a mutual-feedback fishery feeding system

Abstract

The invention provides a working method of a mutual-feed fishery feeding system, which determines that the self-weight of a top rod and a baffle is the tension of a plurality of tension springs 2, then records the stress conditions of the tension springs 2, the stress conditions of the top rod and the deformation of the tension springs 2 in two different states, a non-feeding state and a feeding state, and finally calculates the elastic modulus of the tension springs 2 through force analysis and geometric relationships. The method is applied to the feeding system, feed is put into the feeding system and placed on the water surface of a breeding farm, and automatic feeding is realized through a feed induction device. Stable automatic feeding is realized through the interaction between fish and the feeding equipment, and parameters of components in the feeding system can be conveniently changed according to the size of the feed.

Description

Technical Field

[0001] The invention relates to the technical field of feeding, and in particular to a working method of a mutual-feedback fishery feeding system. Background Art

[0002] In recent years, my country's breeding industry has developed rapidly, driving the development of a series of breeding industry chains such as breeding technology, breeding feed, and breeding equipment. Breeding equipment and feeding equipment have also achieved new developments. Automatic feeding equipment has replaced the current manual feeding used in breeding to achieve larger-scale breeding. Automatic feeding equipment plays an important role in the feeding process.

[0003] For example, Chinese patent application number CN202323199132.5, with a publication date of July 16, 2024, discloses an automatic feeder, including an inverted conical hopper, an automatic feeding paddle power motor, an automatic feeding paddle, and a circulation switch controller. The machine body is blow-molded in one step and then processed. The hopper is an inverted conical hopper. The upper end of the hopper is a cylinder or a square cylinder and other shapes, and the bottom is an inverted conical bottom. The bottom outlet of the inverted conical hopper is designed with a narrow neck. The bottom of the inverted conical hopper is connected to the conical angle of the conical feeding bin. The bottom of the conical feeding bin is a cylindrical feeding bin, and the feeding bin has a bottom cover.

[0004] The above document controls the driving motor through a cycle switch controller to drive the automatic feeding paddle to rotate in the feeding bin, and then pulls and spreads the feed in the feeding bin, passes through the feeding port, and is evenly spread in the breeding pool of the breeding equipment. However, since the feeding process is carried out on the water surface, it is easily affected by external factors, especially electronic devices placed in water are easily affected by water, which may cause electronic devices to malfunction and fail to feed stably. At the same time, it is impossible to perform the feeding operation only when there are fish at the current location, so that the place where there are fish can be more accurately fed. When the equipment is used to feed feed of different particle sizes, it is impossible to adjust the device in the equipment according to the feed particle size to conveniently realize reliable feed feeding. Summary of the invention

[0005] The object of the present invention is to provide a working method of a mutual-feed fishery feeding system, which realizes stable automatic feeding through the interaction between fish and feeding equipment, and can conveniently and reliably adjust the parameters in the equipment according to the size of feed particles to meet the feeding requirements.

[0006] To achieve the above-mentioned object, the present invention provides a working method of a mutual-feed fishery feeding system, wherein feed delivery is achieved through the feeding system, the feeding system comprises an outer shell, a mandrel and a feed induction device, the feed induction device comprises an induction body and a discharge guide rail, the mandrel penetrates the induction body and is arranged in the outer shell, the induction body is provided with more than two tension springs 1 connected to the mandrel and a tension spring 2 connected to a baffle fixedly sleeved on the mandrel; more than two feed inlets are arranged in the outer wall direction of the upper end of the induction body, a feed discharge channel is arranged on the induction body, the feed discharge channel is connected to the feed inlet and the discharge port, and the baffle is movably arranged on the discharge port;

[0007] The following steps are also included:

[0008] S1 determines the sum of the weights of the top rod and the baffle The tension of two or more tension springs ; Diameter of feed particles to be placed ; The original length of tension spring 2 is ;

[0009] When S2 is not fed, the stretch of tension spring 2 is measured as follows: , the distance from the origin to the plane where the tension spring 2 is connected to the accommodating cavity and is perpendicular to the axis of the inducer ;

[0010] When S3 is in the feeding state, the distance between the baffle and the feeding channel reaches the preset distance, and the stretching amount of the tension spring 2 is measured. ; The distance from the origin to the plane where the tension spring 2 is connected to the accommodating cavity and is perpendicular to the axis of the inducer , the force of the fish to be fed hitting the top rod ;

[0011] S4 obtains the elastic modulus of the tension spring 2 according to the parameters measured in the feeding state in step S3 and the parameters measured in the non-feeding state in step S2. ; The elastic modulus of tension spring 1 and tension spring 2 are equal;

[0012] S5 selects the elastic modulus obtained in S4 as Tension spring 1 and tension spring 2 are installed in the feed induction device. When the top rod is hit by a nearby moving object, tension spring 2 is stretched, thereby driving the baffle to move and open the discharge port. The feed in the feed induction device flows out from the discharge port through the discharge guide rail to realize automatic feeding.

[0013] In the above arrangement, since the baffle is pulled by the tension spring 2 to make the inducer device in a balanced state, the weight of the entire inducer device is evenly divided on each tension spring 2, and the deformation of the tension spring 2 under the feeding state can be measured in advance. ; The distance from the origin to the plane where the tension spring 2 is connected to the accommodating cavity and is perpendicular to the axis of the inducer , the force of the fish to be fed hitting the top rod And the deformation of tension spring 2 in the non-feeding state is , the diameter T of the feed particles to be put in, the distance from the origin to the plane where the tension spring 2 is connected to the accommodating cavity and is perpendicular to the axis of the inducer Get the elastic modulus of tension spring 2 , so as to facilitate the determination of the elastic modulus of the tension spring 1 and the tension spring 2, and facilitate the determination of the elastic modulus of the tension spring 1 and the tension spring 2 according to the diameter of the feed to be put in. Since the tension generated by the elastic spring 2 eliminates the gravity of the top rod, when a moving object such as a fish slightly hits the top rod, the feed can be reliably delivered and the height of the baffle movement meets the preset height requirement, thereby ensuring the reliability of feed delivery and facilitating the adjustment of the components in the equipment to meet the delivery requirements.

[0014] Furthermore, the induction body is provided with a receiving cavity, and a tension spring 1 and a tension spring 2 are arranged in the induction body; more than two tension springs 1 are evenly arranged along the circumference of the top rod, and in step S1, the tension applied to each tension spring 2 is as follows:

[0015] ;

[0016] Where s represents the number of tension springs 2.

[0017] The above arrangement arranges the tension springs one and two in the accommodating cavity, thereby facilitating the arrangement of the tension springs, facilitating the calculation of the tension applied to each tension spring two in the inducer, and enabling the entire device to be in a balanced state.

[0018] Further, in step S2, the non-feeding state is defined as the push rod not driving the baffle to move, so that no gap is formed between the baffle and the feeding channel set on the induction body, and the feed stays in the feeding channel; the feeding state is the push rod driving the baffle to move, so that a gap is formed between the baffle and the feeding channel set on the induction body, and the feed flows out of the feeding channel.

[0019] With the above arrangement, the baffle is driven to move by the push rod, so that when a fish hits the push rod nearby, the tension spring on the fish side is stretched, so that the baffle on one side is opened for feed delivery, while when no fish appears, feed will not be delivered, so that automatic feeding can be achieved after the fish hits the push rod and drives the baffle to move upward.

[0020] Furthermore, tension spring one is arranged at uniform circumferential intervals in a plane perpendicular to the axis of the inducer, one end of tension spring one is fixedly connected to the push rod, and the other end of tension spring one is fixedly connected to the side wall of the accommodating cavity; tension spring two located below tension spring one is arranged at uniform circumferential intervals, one end of tension spring two is fixedly connected in the accommodating cavity, and the other end of tension spring two is arranged in a direction parallel to the inner side wall of the accommodating cavity and fixedly connected to the baffle.

[0021] The above arrangement connects the top rod with the tension spring 1, so that when the top rod is hit by a fish, the deflection angle between the top rod and the axis is reduced, and then the top rod is quickly reset under the action of the spring; and by setting the tension spring 2 to be connected with the baffle, the tension of the spring can offset the gravity of the top rod and the baffle themselves, so that when the fish hits the top rod, the top rod can be moved.

[0022] Further, in step S4, the preset distance is ,and

[0023] .

[0024] The above arrangement, by setting the preset distance to twice the distance of the feed, can make the width of the opening of the discharge port more reliably ensure that the feed can be reliably delivered.

[0025] Further, in step S5,

[0026] .

[0027] The above arrangement can calculate the elastic modulus of the tension spring 2 by measuring the deformation of the tension spring 2 in the two states, the distance from the origin to the plane where the tension spring 2 is connected with the accommodating chamber and is perpendicular to the axis of the inducer, the distance from the plane where the tension spring 2 is connected with the accommodating chamber to the origin and is parallel to the axis of the inducer, the force of the fish hitting the top rod and the diameter of the feed. This relationship does not require other additional calculation formulas, and the calculation method is simple and reliable.

[0028] Furthermore, step S6 also includes: when the feed is put in and the push rod is not hit, the tension spring 2 returns to its original length, and the baffle moves to block the discharge port, thereby entering a non-feeding state.

[0029] The above settings can ensure that the machine can quickly return to the unfed state after feeding, thus avoiding the waste of feeding.

[0030] Furthermore, the outer shell includes a boss, a transition portion, a shell body and an inclined portion, the outer side of the boss is detachably connected with a cover, the bottom of the boss is fixedly connected to one end of the transition portion, the other end of the transition portion is fixedly connected to one end of the shell body, a pressure relief port is arranged at intervals on the outer side wall of the transition portion, the other end of the shell body is fixedly connected to the inclined portion, the inclined portion is inclined downward along the axial direction and gradually becomes smaller, the feed inducer is arranged in the outer shell, and a discharge space is formed between the inducer and the cover.

[0031] With the above arrangement, the boss is conveniently connected to the sealing cover, and a pressure relief port is arranged on the transition portion to prevent the discharge of materials due to excessive pressure in the discharge chamber. At the same time, the inclined portion can be conveniently arranged in contact with the inducer and conveniently form a space for storing feed, thereby storing the feed and preventing it from being affected by the outside.

[0032] Furthermore, the inner side wall of the inclined portion abuts against the outer wall of the inducer, and the material discharge channel is formed by the outer wall of the inducer being recessed toward the center of the inducer, and the material discharge channel is arranged along the upper end to the lower end of the inducer.

[0033] The above arrangement is to set an inwardly recessed groove on the inclined guide body, and then fit it with the outer wall of the inclined part to form a material discharge channel. In this way, the inclined part can make the formed material discharge channel inclined, further ensuring the reliability of material discharge.

[0034] Furthermore, in step 6), the flow rate of the feed in the feed induction device from the discharge port satisfies the condition:

[0035] ;

[0036] Represents the falling speed of feed; represents the exit radius; represents the acceleration due to gravity; H is the height from the upper end surface to the lower end surface of the inducer.

[0037] The above arrangement can control the height of the inducer and the outlet radius, so that the feed can fall in a form close to free fall during the transition between the unfed state and the fed state, thereby ensuring the maximization of the discharge speed.

[0038] Furthermore, a limiting device is arranged in the material storage cavity, the limiting device comprises a connecting block and two or more connecting rods, the connecting block is rotatably connected to one end of the two or more connecting rods, and the bottom of the connecting block abuts against the top rod.

[0039] The above arrangement can ensure that the push rod is limited under the resistance of the connecting block, and the connecting block is rotatably connected to the connecting rod, providing rotation and extension space for the push rod when it moves upward. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the overall structure of the feeding system of the present invention.

[0041] Figure 2 It is a schematic diagram of the structure of the feed induction device in the present invention.

[0042] Figure 3 It is the front view of the overall structure of the present invention.

[0043] Figure 4 for Figure 3 Draw the cross-section view at AA.

[0044] Figure 5 It is a schematic diagram of force analysis in the non-feeding state in the present invention.

[0045] Figure 6 It is a schematic diagram of force analysis of the feeding state in the present invention.

[0046] Figure 7 for Figure 2 Enlarged view of point B in the middle.

[0047] Figure 8 It is an exploded view of the feed inducer device in the present invention.

[0048] Fig. 9 This is a schematic diagram of the structure of the delivery system of the present invention after removing the cover.

[0049] Fig.10 This is a simulation effect diagram of the present invention when no feed is added.

[0050] Fig.11 This is a simulation effect diagram of the present invention when feeding feed.

[0051] Fig.12 It is a flow chart of the present invention. DETAILED DESCRIPTION

[0052] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0053] like Figure 1-10 As shown, the present invention provides a working method of a mutual-feed fishery feeding system, wherein feed is delivered through the feeding system, the feeding system comprises an outer shell, a top rod 22 and a feed induction device, a cover 21 is provided on the top of the outer shell, in this embodiment, the outer shell is arranged on a bracket 1, a mounting plate 11 is fixedly provided on the top of the bracket 1, a through hole (not marked in the figure) matching the outer shell is provided on the mounting plate 11, four mounting seats 12 are provided on both sides of the bottom of the bracket 1, and a floating plate 13 is fixed on each mounting seat 12, so that after the feeding device passes through the through hole and is stably placed on the bracket 1, the bracket 1 can float on the water surface through the floating plate 13.

[0054] like Figure 2-4 and Fig.10 As shown, the feed induction device is arranged at the lower end of the inner part of the outer shell, and the outer shell includes a boss 23, a transition part 24, a shell body 25 and an inclined part 26. The outer side of the boss 23 is provided with a thread matching the cover 21, and is spirally connected to the cover 21 through the thread. A handle 27 is provided on the cover 21. The bottom of the boss 23 is fixedly connected to one end of the transition part 24, and the other end of the transition part 24 is fixedly connected to one end of the shell body 25. The other end of the shell body 25 is fixedly connected to the inclined part 26. The inclined part 26 is gradually reduced by tilting downward along the axial direction. The diameter of the cross section of the boss 23 is larger than the diameter of the cross section of the shell body 25, and the diameter of the cross section of the shell body 25 is larger than the diameter of the cross section of the transition part 24. The feed induction device includes an induction body 28 and a discharge guide rail 29. A storage cavity 20 is formed between the induction body 28 and the cover 21. The outer side wall of the transition part 24 is provided with more than two circumferentially evenly spaced. The pressure relief port 241 makes the air pressure of the storage chamber 20 the same as the external air pressure. A limiting device is arranged in the storage chamber 20, and the limiting device includes a connecting block 3 and more than two connecting rods 4. In the present embodiment, the number of connecting rods 4 is set to eight, and a groove matching the push rod 22 is provided at the bottom of the connecting block 3. The eight connecting rods 4 are evenly spaced in a circle on the four sides of the connecting block 3 in a plane perpendicular to the axis of the transition portion 24. One end of the connecting rod 4 is ball-hinged with a ball hinge seat 30 arranged on the outside of the connecting block 3, and the other end of the connecting rod 4 is hinged with the inner side wall of the transition portion 24 (not shown in the figure), and can be connected by setting a hinge seat, so that the connecting rod 4 can rotate or swing slightly on the connecting block 3 and the transition portion 24. When the push rod 22 is hit by a fish and moves upward, the push rod 22 can abut the connecting block 3 and drive the connecting block 3 to move upward, so that the distance of the push rod 22 moving upward can be limited while buffering.

[0055] like Figure 2-5 , Figure 8As shown, a truncated cone 5 is provided between the limiting device and the inductor, and the interior of the truncated cone 5 is set as a hollow structure. The upper end of the truncated cone 5 abuts against the bottom of the connecting block 3, and the lower end of the truncated cone 5 is fixedly connected to the inductor 28, so as to isolate the feed in the storage cavity 20 from direct contact with the top rod 22. The upper end of the inductor 28 is provided with more than two feeding ports 6 arranged at even intervals around the circumference on the four sides. In this embodiment, the number of the feeding ports 6 is set to eight, and chamfers 7 corresponding to the feeding ports 6 are provided on the four sides of the truncated cone 5 on the inductor 28. The chamfers 7 are connected to the feeding port 6. The contact area with the feed is increased by the chamfers 7, so that the feed in the storage cavity 20 can flow into the feeding port 6 better. The lower end of the inductor 28 is provided with a There is a discharge port 8 corresponding to the feed port 6, and the upper end of the guide body 28 gradually becomes smaller toward the lower end along the axial direction. The outer wall of the guide body 28 is provided with a feed discharge channel 9 respectively connected with the feed port 6 and the discharge port 8. The opening size of the feed discharge channel 9 connected with the feed port 6 is larger than the opening size of the feed discharge channel 9 connected with the discharge port 8. A notch 31 is provided at the connection between the feed discharge channel 9 and the discharge port 8, and the edge of the baffle 32 is blocked in the notch 31, so that the feed flowing into the feed discharge channel 9 is blocked by the baffle 32 and gradually fills the feed discharge channel 9. One end of the discharge guide rail 29 is connected with the discharge port 8, and the other end of the discharge guide rail 29 extends outward and downward to the water surface, so that the feed is convenient to flow to the water surface through the discharge guide rail 29.

[0056] In this embodiment, the inner side wall of the inclined portion 26 abuts against the outer wall of the guide body 28, and the feed channel 9 is formed by the outer wall of the guide body 28 being recessed toward the center of the guide body 28, and the feed channel 9 is arranged along the upper end to the lower end of the guide body 28.

[0057] like Figure 4 and 5 , Figure 8As shown, the guide body 28 is provided with a receiving chamber 33, and the receiving chamber 33 is provided with more than two tension springs 1 41 connected to the push rod 22 and a tension spring 2 42 connected to the baffle 32 fixedly sleeved on the push rod 22. In this embodiment, the tension spring 1 41 is evenly spaced in a circle in a plane perpendicular to the axis of the guide body 28. One end of the tension spring 1 41 is fixedly connected to the push rod 22 through a connecting hook, and the other end of the tension spring 1 41 is fixedly connected to the side wall of the receiving chamber 33. The guide body 28 is connected to the push rod 22 through the tension spring 1 41. When the push rod 22 is moved upward by the collision of the fish, the deflection angle between the push rod 22 and the axis is reduced, and then the guide rod 22 is quickly reset under the action of the tension spring 1 41. The tension spring 2 42 located below the tension spring 1 41 is evenly spaced in a circle, and one end of the tension spring 2 42 is fixedly connected to the receiving chamber 33, and the other end of the tension spring 2 42 is arranged in a direction parallel to the inner side wall of the receiving chamber 33 and The second tension spring 42 is fixedly connected to the baffle plate 32, and is connected to the baffle plate 32 by setting a tension spring 242, and the elastic spring 242 is inclined relative to the baffle plate, and the elastic spring 242 is in a stretched state when not feeding, so that the tension spring 242 can generate a tension effect on the baffle plate 32, thereby offsetting the gravity of the top rod 22 and the baffle plate 32, so that when the fish slightly collides with the top rod 22, the tension spring 242 can make the top rod 22 drive the baffle plate 32 to move upward, thereby bringing The movable baffle 32 is separated from the notch 31, so that a gap is formed between the baffle 32 and the inner wall of the inclined portion 26, so that the feed in the feeding channel 9 flows from the gap to the discharge port 8, and then flows to the water surface through the discharge guide rail 29 to achieve feeding. After the top rod 22 is not affected by the external impact force, the gravity balance state is restored under the action of the tension spring 242, and the top rod 22 drives the baffle 32 to move downward and reset, and the baffle 32 blocks the notch 31, so that the feed in the feeding channel 9 stops flowing out.

[0058] In the present embodiment, one end of the push rod 22 passes through the accommodating cavity 33 from the bottom of the inducer 28 and is arranged in the outer shell and abuts against the limiting device arranged in the storage cavity 20. In the present embodiment, one end of the push rod 22 smoothly abuts against the groove at the bottom of the connecting block 3 in the storage cavity 20, and the other end of the push rod 22 is fixedly provided with a rubber box 33. More than two air holes (not marked in the figure) are provided on the outer wall of the rubber box 33. Feed that attracts fish to eat is placed in the rubber box 33. In the present embodiment, the entire rubber box 33 is immersed in water, and the feed spreads the smell into the water through the air holes to induce the fish to produce feeding behavior and hit the push rod 22.

[0059] See also Fig.12 The working method of a mutual-feed fishery feeding system also includes the following specific steps:

[0060] S1 determines the sum of the weights of the top rod and the baffle , and then get the tension of each tension spring ; The diameter of the feed pellets to be put in is T; The original length of the tension spring 2 is n. The tension on each tension spring 2 is as follows:

[0061] ;

[0062] Wherein s represents the number of the tension springs 2, and in this embodiment, s=8.

[0063] After the feeding system is placed on the water surface, the buoyancy of the top rod is measured in the non-feeding state and the feeding state, and is recorded as In this embodiment, since the sum of the gravity of the top rod and the baffle is equal to the tension of more than two tension springs, and the distance that the fish top rod 1 rises after being hit by the fish is relatively small, the buoyancy of the whole non-feeding state and the feeding state is not much different, and both are recorded as .

[0064] When S3 is not feeding, the stretch of tension spring 2 is measured as follows: ; The distance from the origin to the plane where the tension spring 2 is connected to the accommodating cavity and is perpendicular to the axis of the inducer .

[0065] When S4 is in the feeding state, the distance between the baffle and the feeding channel reaches the preset distance, and the stretching amount of the tension spring 2 is measured. ; The distance from the origin to the plane where the tension spring 2 is connected to the accommodating cavity and is perpendicular to the axis of the inducer , the force of the fish to be fed hitting the top rod In this embodiment, the preset distance is ,and

[0066] .

[0067] S5 is respectively for the state of not feeding and the state of feeding, and the stretching amount of the tension spring 2 in the state of feeding is , the distance from the origin to the plane where the tension spring 2 is connected to the accommodating cavity and is perpendicular to the axis of the inducer , the force of the fish to be fed hitting the top rod And the stretching amount of tension spring 2 in the non-feeding state is , the diameter T of the feed to be put in, the distance from the origin to the plane where the tension spring 2 is connected to the accommodating cavity and is perpendicular to the axis of the inducer Get the elastic modulus of tension spring 2 ; The elastic modulus of tension spring 1 and tension spring 2 are equal. The calculation formula is:

[0068] (6).

[0069] S6 selects the elastic modulus obtained in S5 as Tension spring 1 and tension spring 2 are installed in the feed induction device. When the top rod is hit by a nearby moving object, tension spring 2 is stretched, thereby driving the baffle to move and open the discharge port. The feed in the feed induction device flows out from the discharge port through the discharge guide rail to realize automatic feeding.

[0070] The calculation process of formula (6) is as follows:

[0071] 1) If Figure 5 As shown in the figure, when there is no feeding, the tension of the tension spring 2 is recorded as , the tension of tension spring 1 is , the stretch of tension spring 2 is , the angle between the tension spring 2 and the axis of the inducer is , taking the connection between the tension spring 2 and the baffle as the origin, establish a rectangular coordinate system to analyze the force of the top rod and the baffle in the non-feeding state, and obtain the following relationship through geometric relationship:

[0072] ; (1)

[0073] ; (2)

[0074] In the unfed state, is the length of the tension spring after stretching, is the distance from the origin to the plane where the tension spring 2 is connected to the accommodating cavity and is perpendicular to the axis of the inducer. It is the distance from the connection point between the tension spring 2 and the accommodating cavity to the plane passing through the origin and parallel to the axis of the inducer.

[0075] 2) If Figure 6 As shown in the figure, in the feeding state, the tension of the tension spring 1 is recorded as , the tension of the tension spring 2 is , the deformation of the tension spring 2 is , the angle between the tension spring 2 and the axis of the inducer is , the force of the fish to be fed hitting the top rod is , taking the connection between the second tension spring and the baffle as the origin, a rectangular coordinate system is established to analyze the force on the top rod and the baffle in the feeding state, and the following relationship is obtained through geometric relations:

[0076] ; (3)

[0077] ; (4)

[0078] In the feeding state, is the length of the tension spring 2 after stretching, m1 is the distance from the origin to the plane where the tension spring 2 is connected with the accommodating cavity and is perpendicular to the axis of the inducer, It is the distance from the connection point between the tension spring 2 and the accommodating cavity to the plane passing through the origin and parallel to the axis of the inducer.

[0079] 3) Combine the two states of no feeding and feeding, and then calculate the forces in the no feeding state and the feeding state respectively. The fish impact force is obtained by combining equations (1) to (5): The elastic modulus of the tension spring and feed diameter The relationship between is shown in (6). This proves that the entire calculation process is accurate.

[0080] In one embodiment, in step 6), the flow rate of the feed in the feed induction device from the discharge port satisfies the condition:

[0081] ; (7)

[0082] Represents the falling speed of feed; represents the exit radius; represents the acceleration due to gravity; H is the height from the upper end surface to the lower end surface of the inducer.

[0083] The calculation process of formula (7) is as follows:

[0084] In this embodiment, the material feeding behavior is a free fall arch, which is a transition interface approximately in the shape of a hemisphere. During the transition process, the particles are transformed from a restricted state to an unrestricted state, that is, there is a strong interaction between the particles on the transition interface, which makes them bound to each other, and below the transition interface, the particles will fall freely without restriction. The mass flow rate formula of the granular material during feeding is expressed as follows:

[0085] (7.1);

[0086] Where: represents the mass flow rate; represents the cross-sectional area at the outlet; Represents the average velocity of particles as they flow through the outlet; represents the particle volume density;

[0087] In this formula, except for the average velocity of particles flowing through the outlet, all other parameters can be regarded as constants. Therefore, the mass flow rate is affected by the velocity.

[0088] According to the theory of the induced body approaching hemispherical free fall, the following two expressions can be derived:

[0089] (7.2);

[0090] Where: Represents the falling speed of the particle; Represents the falling velocity of the particles at the center of the outlet; represents the exit radius; represents the acceleration due to gravity; Figure 5 As shown, H is the height of the inducer, the center of the circle is the intersection of the straight line where the inducer outlet is located and the push rod, and the origin is located on the axis of the push rod and at a distance R from the center of the circle.

[0091] Then, equation (7) can be derived through equation (7.2). By controlling the height of the inducer and the outlet radius, the feed can be dropped in a form close to free fall during the transition between the unfed state and the fed state, thereby ensuring the maximum discharge speed.

[0092] The working principle of the present invention is as follows: the tension of each tension spring 242 by the top rod 22 and the baffle 31 is calculated through the self-gravity of the top rod 22 and the baffle 31, and the buoyancy of the top rod 22 immersed in water is recorded at the same time, and then the force conditions of the tension spring 242, the force conditions of the top rod 22 and the deformation of the tension spring 242 in two different states, the non-feeding state and the feeding state, are recorded, and finally the elastic modulus of the tension spring 242 is calculated through force analysis and geometric relationship. , applied in the feeding system, when the top rod 22 is hit by the fish and moves upward, the top rod 22 drives the baffle 32 to move upward, and then drives the baffle 32 to break away from the notch 31, so that a gap is formed between the baffle 32 and the feeding channel 9, and then the feed flows from the gap to the discharge port 8, and then flows to the water surface through the discharge guide rail 29 to achieve feeding. After the top rod 22 is not affected by the external force of the impact, under the action of the tension spring 242, the top rod 22 drives the baffle 32 to move downward and reset, and the baffle 32 blocks the notch 31, so that the feed in the feeding channel 9 stops flowing out.

Claims

1. A working method of a mutual-feed fishery feeding system, wherein feed is delivered through the feeding system, characterized in that: The feeding system comprises an outer shell, a push rod and a feed induction device, wherein the feed induction device comprises an induction body and a discharging guide rail, wherein the push rod penetrates the induction body and is arranged in the outer shell, wherein the induction body is provided with more than two tension springs 1 connected with the push rod and tension spring 2 connected with a baffle fixedly sleeved on the push rod; the tension spring 1 is arranged at uniform intervals in a circle in a plane perpendicular to the axis of the induction body, one end of the tension spring 1 is fixedly connected to the push rod, and the other end of the tension spring 1 is fixedly connected to the side wall of the accommodating cavity; the tension spring 2 located below the tension spring 1 is arranged at uniform intervals in a circle, one end of the tension spring 2 is fixedly connected in the accommodating cavity, and the other end of the tension spring 2 is fixedly connected to the side wall of the accommodating cavity The end is arranged along a direction parallel to the inner side wall of the accommodating cavity and is fixedly connected with the baffle; more than two feeding ports are arranged in the outer wall direction of the upper end of the induction body, and a feeding channel is arranged on the induction body, the feeding channel is connected with the feeding port and the feeding port, and the baffle is movably arranged on the feeding port; one end of the feeding guide rail is connected with the feeding port, and the other end of the feeding guide rail extends outward and downward to the water surface, and the feeding guide rail located above the mounting seat is arranged in an arc shape from the end connected with the feeding port to the end extending to the water surface, and by controlling the height of the induction body and the outlet radius, when the feed is fed, the feed can fall in a form close to free fall in the process of transition between the non-feeding state and the feeding state, thereby ensuring the maximization of the feeding speed; The following steps are also included: S1 determines the sum of the weights of the top rod and the baffle The tension of two or more tension springs ; The diameter of the feed pellets to be put in is T; The original length of the tension spring 2 is n; When S2 is not fed, the stretch of tension spring 2 is measured as follows: , the distance from the origin to the plane where the tension spring 2 is connected to the accommodating cavity and is perpendicular to the axis of the inducer ; When S3 is in the feeding state, the distance between the baffle and the feeding channel reaches the preset distance, and the stretching amount of the tension spring 2 is measured. ; The distance from the origin to the plane where the tension spring 2 is connected to the accommodating cavity and is perpendicular to the axis of the inducer , the force of the fish to be fed hitting the top rod ; S4 obtains the elastic modulus of the tension spring 2 according to the parameters measured in the feeding state in step S3 and the parameters measured in the non-feeding state in step S2. ; The elastic modulus of tension spring 1 and tension spring 2 are equal, and the preset distance is ,and ； S5 selects the elastic modulus obtained in S4 as The tension spring 1 and the tension spring 2 are installed in the feed induction device. When the top rod is hit by a nearby moving object, the tension spring 2 is stretched, thereby driving the baffle to move and open the discharge port. The feed in the feed induction device flows out from the discharge port through the discharge guide rail to realize automatic feeding. 。 2. The working method of a mutual-feed fishery feeding system according to claim 1, characterized in that: The induction body is provided with a receiving cavity, and a tension spring 1 and a tension spring 2 are arranged in the induction body; more than two tension springs 1 are evenly arranged along the circumference of the top rod, and in step S1, the tension force received by each tension spring 2 as follows: ； Where s represents the number of tension springs 2.

3. The working method of a mutual-feed fishery feeding system according to claim 1, characterized in that: In step S2, the non-feeding state is that the top rod does not drive the baffle to move, so that there is no gap between the baffle and the feeding channel set on the induction body, and the feed stays in the feeding channel; the feeding state is that the top rod drives the baffle to move, so that a gap is formed between the baffle and the feeding channel set on the induction body, and the feed flows out of the feeding channel.

4. The working method of a mutual-feed fishery feeding system according to claim 1, characterized in that: Step S6 also includes: when the feed is put in and the push rod is not hit, the tension spring 2 returns to its original length, and the baffle moves to block the feed outlet, thereby entering a no-feeding state.

5. The working method of a mutual-feed fishery feeding system according to claim 1, characterized in that: The outer shell includes a boss, a transition portion, a shell body and an inclined portion. A cover is detachably connected to the outer side of the boss. The bottom of the boss is fixedly connected to one end of the transition portion. The other end of the transition portion is fixedly connected to one end of the shell body. A pressure relief port is arranged at intervals on the outer side wall of the transition portion. The other end of the shell body is fixedly connected to the inclined portion. The inclined portion is gradually reduced in size by tilting downward along the axial direction. A feed inducer is arranged in the outer shell, and a discharge space is formed between the inducer and the cover.

6. The working method of the mutual-feed fishery feeding system according to claim 5, characterized in that: The inner side wall of the inclined portion abuts against the outer wall of the inductor, and the material discharge channel is formed by the outer wall of the inductor being recessed toward the center of the inductor, and the material discharge channel is arranged along the upper end and the lower end of the inductor.

7. The working method of a mutual-feed fishery feeding system according to claim 1, characterized in that: In step 6), the flow rate of the feed in the feed induction device from the discharge port meets the condition: ； Represents the falling speed of feed; represents the exit radius; represents the acceleration due to gravity; H is the height from the upper end surface to the lower end surface of the inducer.

8. The working method of a mutual-feed fishery feeding system according to claim 1, characterized in that: A limiting device is arranged in the material storage cavity, and the limiting device comprises a connecting block and more than two connecting rods. The connecting block is rotatably connected to one end of the more than two connecting rods, and the bottom of the connecting block abuts against the top rod.

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