Poultry feed crushing and screening device

Abstract

According to the poultry feed crushing and screening device, the discharging end of a tooth claw crusher faces downwards and is communicated with a crushing barrel, and a driving barrel is arranged at the bottom of the crushing barrel and located on a bottom frame; a first sieve plate and a second sieve plate are arranged in the crushing barrel at an interval, discharge ports are formed in one side of the crushing barrel below the first sieve plate and the second sieve plate, a crushing roller is arranged on the first sieve plate and is connected with a driving shaft, and the driving shaft downwards penetrates into the driving barrel and is connected with a driving assembly for driving the driving shaft to rotate; a fan is arranged on one side of the mounting frame, the air outlet end of the fan is connected with two air outlet pipes, and the two air outlet pipes penetrate into the crushing barrel and are located at the bottoms of the first sieve plate and the second sieve plate correspondingly. And the draught fan is arranged on one side of the crushing barrel and matched with the two air outlet pipes, materials at the second sieve plate and the inner bottom of the crushing barrel can be discharged from the discharging opening, the discharging speed is increased, and compared with existing vibration discharging, damage to the connecting position of equipment can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of feed crushing and screening, in particular to a poultry feed crushing and screening device. Background Art

[0002] The preparation process of poultry feed is a complex and delicate process, which aims to ensure that the feed is nutritionally balanced and has good palatability. There are many feed raw materials to choose from, including cereal raw materials such as corn, wheat, and barley, as well as protein raw materials such as soybean meal, fish meal, and meat and bone meal, as well as some grass raw materials. During preparation, it needs to go through processes such as crushing and screening. However, the existing crushing and screening are usually carried out using different equipment. After the crushing is completed in the crusher, it needs to be transported to the screening machine for screening. The process steps are relatively cumbersome, and the inventors found during use that the material after screening usually falls directly onto the screen plate, and the discharge efficiency is slow. Alternatively, vibration is used for unloading, but due to the presence of vibration, the connection position of the entire screening equipment will become loose, and even bolts will fall off or welding positions will become open. Frequent maintenance is required, which has certain limitations. Utility Model Content

[0003] In order to solve the technical problems existing in the above-mentioned background technology, the utility model provides a poultry feed crushing and screening device.

[0004] The technical solution of this utility model is as follows:

[0005] A poultry feed crushing and screening device comprises a base frame, a mounting frame is provided on the base frame, a screw conveyor is installed on the upper end of the mounting frame, and the screw conveyor is connected to a claw crusher, and a feeding port is provided on the upper end of the screw conveyor.

[0006] The discharging end of the claw crusher faces downward and is connected to a crushing drum. A driving drum is provided at the bottom of the crushing drum, and the driving drum is located on the base frame.

[0007] The crushing drum is provided with a first sieve plate and a second sieve plate at intervals, and a discharge port is provided on one side of the crushing drum below the first sieve plate. A crushing roller is provided on the first sieve plate, and the crushing roller is connected to a drive shaft, which passes downwardly into the drive drum and is connected to a drive assembly that drives the roller to rotate.

[0008] A fan is provided on one side of the mounting frame, and the air outlet end of the fan is connected to two air outlet pipes, which pass through the crushing cylinder and are respectively located at the bottom of the first sieve plate and the second sieve plate.

[0009] In order to control the working status of the two air outlet pipes, solenoid valves are provided on the two air outlet pipes.

[0010] In order to facilitate unloading and prevent feed from flying, the outer side of the unloading port is connected to a downwardly inclined unloading hopper, and the upper end of the unloading hopper is provided with an end cover.

[0011] To ensure the air outlet pipe effectively blows the crushed feed, the upper air outlet pipe is located close to the upper surface of the second screen plate, and the lower air outlet pipe is located close to the bottom surface of the crushing drum. The centers of the two discharge ports are on the same horizontal line as the centers of the corresponding air outlet pipes.

[0012] In order to improve the crushing effect of the feed, two groups of crushing rollers are provided and arranged horizontally on the first screen plate. The two groups are connected by a connecting rod, and the connecting rod is connected to the top end of the drive shaft.

[0013] The specific design of the driving assembly is that the driving assembly includes a bevel gear set located in the driving cylinder, and the driven wheel is connected to the driving shaft, and the driving wheel is connected to the output end of the driving motor arranged on the chassis.

[0014] In order to synchronously drive the screw conveyor to work, a driving pulley is connected to the outer edge of the output end of the driving motor, the rotating shaft of the screw conveyor passes through its shell and is rotatably connected to the upper end of the mounting frame, and a driven pulley is installed on the outer edge of the rotating shaft, and the driving pulley and the driven pulley are connected by a belt.

[0015] In order to achieve graded material discharge, the aperture of the first sieve plate is larger than the aperture of the second sieve plate.

[0016] In order to prevent feed from entering the air outlet pipe, air-permeable mesh panels are installed at the ends of the two air outlet pipes in the air outlet direction.

[0017] The beneficial effects of the present invention are as follows: the present invention is a poultry feed crushing and screening device, which firstly, through the feeding port and the screw conveyor, can convey the feed raw materials to the claw crusher for primary crushing, and then the raw materials fall into the crushing drum, and are crushed at the second level by the crushing roller, thereby ensuring that the raw materials are fully crushed; secondly, through the design of the first sieve plate and the second sieve plate, in conjunction with the two discharging ports, it is possible to realize graded screening of feed, and discharge feed of different particle sizes at different discharging ports, and integrate screening and crushing, thereby saving the process of conveying feed and improving the efficiency of material screening; finally, through the fan arranged on one side of the crushing drum and in conjunction with the two air outlet pipes, the materials on the second sieve plate and the bottom of the crushing drum can be discharged at the discharge port respectively, thereby improving the unloading speed, and compared with the existing vibration unloading, it can prevent damage to the connection position of the equipment, thereby saving time for equipment inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By reading the detailed description of the preferred embodiment below, the solutions and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not to be considered as limiting the present invention.

[0019] In the attached figure:

[0020] Figure 1 This is a schematic diagram of the overall structure of this scheme;

[0021] Figure 2 This is a partial cross-sectional view of this scheme;

[0022] Figure 3 This is the side view of this scheme;

[0023] Figure 4 This is a schematic diagram of the air outlet pipe connection;

[0024] The components represented by the reference numerals in the figure are:

[0025] 1. Base frame; 2. Mounting frame; 3. Screw conveyor; 4. Claw crusher; 5. Feeding port; 6. Crushing drum; 7. Driving drum; 8. First sieve plate; 9. Second sieve plate; 10. Discharge port; 11. Crushing roller; 12. Drive shaft; 13. Fan; 14. Air outlet pipe; 15. Solenoid valve; 16. Discharge hopper; 17. End cover; 18. Connecting rod; 19. Driven pulley; 20. Driving pulley; 21. Driving motor; 22. Driving pulley; 23. Rotating shaft; 24. Driven pulley; 25. Belt; 26. Breathable mesh panel. DETAILED DESCRIPTION

[0026] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.

[0027] Example

[0028] As mentioned in the background technology, in the process of preparing feed, the existing raw material crushing and feed screening need to go through two different processes and be carried out in different equipment. The crushed feed also needs to be transferred, which is more troublesome, and the discharge efficiency during screening is slow. There are many disadvantages in using manual or vibration discharge methods. Therefore, the inventors have improved the existing equipment and designed a new type of crushing and screening equipment, which is described in detail below with reference to the drawings.

[0029] This embodiment provides a poultry feed crushing and screening device, see Figure 1 and Figure 3, including a base frame 1, and a mounting frame 2 is provided on the base frame 1, a screw conveyor 3 is installed on the upper end of the mounting frame 2, and the screw conveyor 3 is connected to the claw crusher 4, and a feeding port 5 is provided on the screw conveyor 3. The screw conveyor 3 can use existing equipment, and can transport the feed raw materials put into the feeding port 5 to the feeding port of the claw crusher 4, and the claw crusher 4 can also use existing equipment, such as a claw crusher disclosed in publication number CN220371158U, whose feed nozzle is connected to the screw conveyor 3 of the scheme, but is not limited to this model, and can be selected according to the specific needs of crushing raw materials. The difference is that the feeding port of the claw crusher 4 in this scheme is directly located below the claw crusher 4, such as Figure 1 As shown in , no redundant description is given.

[0030] In this embodiment, the discharging end of the claw crusher 4 faces downward and is connected to the crushing drum 6. The feed after the first-level crushing by the claw crusher 4 can enter the crushing drum 6. A driving drum 7 is provided at the bottom of the crushing drum 6, and the driving drum 7 is located on the base frame 1. In order to protect the driving drum 7 and the crushing drum 6, a protective frame is provided at the bottom of the middle of the mounting frame 2. The driving drum 7 and the crushing drum 6 are located in the protective frame. In order to be able to perform graded screening, combined with Figure 2 A first sieve plate 8 and a second sieve plate 9 are arranged in the crushing cylinder 6 at intervals. The first sieve plate 8 is located above the second sieve plate 9. The aperture of the first sieve plate 8 is larger than that of the second sieve plate 9, which can separate feeds of different particle sizes and discharge them from the crushing cylinder 6.

[0031] On the basis of the above structure, in order to carry out secondary crushing of the large-particle feed raw materials falling into the crushing drum 6, a crushing roller 11 is provided on the first screen plate 8, and the crushing roller 11 is connected to a drive shaft 12, which penetrates downward into the drive drum 7 and is connected to a drive assembly that drives it to rotate. Specifically, the crushing roller 11 is provided with two groups and is horizontally arranged on the first screen plate 8. The two groups are connected by a connecting rod 18. The two groups of crushing rollers 11 are rotatably connected to the connecting rod 18. The connecting rod 18 is connected to the top of the drive shaft 12. The drive shaft 12 drives the connecting rod 18 to rotate, and then Drive two sets of crushing rollers 11 to rotate on the first screen plate 8 to perform secondary crushing on the raw materials. In this solution, the driving assembly includes a bevel gear set located in the driving cylinder 7, the driven wheel 19 is arranged horizontally and connected to the driving shaft 12, the driving wheel 20 is arranged vertically and connected to the output end of the driving motor 21 provided on the base frame 1, the driving motor 21 is located outside the driving cylinder 7, and the driven wheel 19 is engaged with the driving wheel 20. The driving motor 21 drives the driving wheel 20 to rotate, and then drives the driving shaft 12 to rotate along with the driven wheel 19 through engagement, and finally drives the two sets of crushing rollers 11 to rotate.

[0032] Moreover, in order to facilitate unloading, combined with Figure 4 , a discharge port 10 is provided on one side of the crushing drum 6 under the first sieve plate 8 and the second sieve plate 9, which can respectively discharge the feed crushed by the second sieve plate 9 and the bottom of the crushing drum 6, and one of the main design points of this scheme is that a fan 13 is provided on one side of the mounting frame 2, and the fan 13 is installed on the vertical frame of the mounting frame 2. The air outlet end of the fan 13 is connected to two air outlet pipes 14, and the two air outlet pipes 14 are connected in parallel with the air outlet end of the fan 13. The two air outlet pipes 14 pass through the crushing drum 6 and are respectively located at the bottom of the first sieve plate 8 and the second sieve plate 9, and the air outlet pipe 1 at the upper end 4 is arranged near the upper end surface of the second sieve plate 9, and the air outlet pipe 14 at the lower end is arranged near the inner bottom surface of the crushing cylinder 6, so that the air outlet positions of the two air outlet pipes 14 can be close to the corresponding feed, thereby improving the blowing effect of the feed accumulated on the second sieve plate 9 and the bottom of the crushing cylinder 6. In addition, the centers of the two discharge ports 10 are respectively on the same horizontal line with the centers of the corresponding air outlet pipes 14, so that the air outlet directions of the two air outlet pipes 14 are respectively toward the two discharge ports 10, thereby accelerating the discharge of materials, and a discharge valve can be provided on the outside of the discharge port 10, so that the two discharge ports 10 can be discharged separately.

[0033] On the basis of the above structure, air-permeable mesh panels 26 are installed at the ends of the two air outlet pipes 14 in the air outlet direction. By setting the air-permeable mesh panels 26 , the air flow of the fan 13 can be facilitated to pass through, and feed can be prevented from entering the air outlet pipe 14 .

[0034] It should be noted that both of the air outlet pipes 14 are provided with solenoid valves 15, and the two solenoid valves 15 can respectively control the on and off states of the two air outlet pipes 14 to adapt to different unloading needs, and the outer side of the discharge port 10 is connected to a downwardly inclined discharge hopper 16. By setting the discharge hopper 16, the feed can be guided to a designated location for feeding, and the upper end of the discharge hopper 16 is provided with an end cover 17. By setting the end cover 17, it can be prevented that the wind force blows the feed out of the discharge hopper 16 when the fan 13 assists in unloading.

[0035] Moreover, this scheme also designs a linkage transmission, which drives the screw conveyor 3 to work at the same time when crushing the material, thereby improving the degree of automation of this device. The outer edge of the output end of the driving motor 21 is connected to a driving pulley 22, and the rotating shaft 23 of the screw conveyor 3 passes through its shell and is rotatably connected to the upper end of the mounting frame 2, that is, the vertical frame of the mounting frame 2 is rotatably connected, and a driven pulley 24 is installed on the outer edge of the rotating shaft, which is located between the vertical frame and the screw conveyor 3. The driving pulley 22 and the driven pulley 24 are connected by a belt 25. When the driving motor 21 is working, the output end can drive the bevel gear group of the driving component to rotate, and at the same time drive the driving pulley 22 to rotate, and drive the driven pulley 24 to rotate through the belt 25, thereby driving the screw conveyor 3 to rotate, and driving the blades to transport the feed raw materials to the claw crusher 4.

Claims

1. A poultry feed crushing and screening device, comprising a base frame (1), wherein a mounting frame (2) is provided on the base frame (1), a screw conveyor (3) is installed on the upper end of the mounting frame (2), and the screw conveyor (3) is connected to a claw crusher (4), and a feeding port (5) is provided on the upper end of the screw conveyor (3), characterized in that: The discharging end of the claw crusher (4) faces downward and is connected to a crushing cylinder (6). A driving cylinder (7) is provided at the bottom of the crushing cylinder (6), and the driving cylinder (7) is located on the base frame (1); A first sieve plate (8) and a second sieve plate (9) are arranged in the crushing cylinder (6) at intervals, and a discharge port (10) is provided on one side of the crushing cylinder (6) below the first sieve plate (8). A crushing roller (11) is provided on the first sieve plate (8), and the crushing roller (11) is connected to a drive shaft (12), which extends downwardly through the drive cylinder (7) and is connected to a drive assembly that drives the drive cylinder (7) to rotate. A fan (13) is provided on one side of the mounting frame (2), and the air outlet end of the fan (13) is connected to two air outlet pipes (14). The two air outlet pipes (14) penetrate into the crushing cylinder (6) and are respectively located at the bottom of the first sieve plate (8) and the bottom of the second sieve plate (9).

2. The poultry feed crushing and screening device according to claim 1, characterized in that: Both of the air outlet pipes (14) are provided with a solenoid valve (15).

3. The poultry feed crushing and screening device according to claim 1, characterized in that: The outer side of the discharge port (10) is connected to a downwardly inclined discharge hopper (16), and an end cover (17) is provided at the upper end of the discharge hopper (16).

4. The poultry feed crushing and screening device according to claim 1, characterized in that: The air outlet pipe (14) at the upper end is arranged close to the upper end surface of the second sieve plate (9), and the air outlet pipe (14) at the lower end is arranged close to the inner bottom surface of the crushing cylinder (6).

5. The poultry feed crushing and screening device according to claim 4, characterized in that: The centers of the two discharge ports (10) are respectively on the same horizontal line as the centers of the corresponding air outlet pipes (14).

6. The poultry feed crushing and screening device according to claim 1, characterized in that: The crushing rollers (11) are provided in two groups and are arranged horizontally on the first screen plate (8). The two groups are connected by a connecting rod (18), and the connecting rod (18) is connected to the top end of the driving shaft (12).

7. The poultry feed crushing and screening device according to claim 1, characterized in that: The driving assembly includes a bevel gear set located in the driving cylinder (7), a driven wheel (19) connected to the driving shaft (12), and a driving wheel (20) connected to the output end of a driving motor (21) arranged on the base frame (1).

8. The poultry feed crushing and screening device according to claim 7, characterized in that: The outer edge of the output end of the driving motor (21) is connected to a driving pulley (22); the rotating shaft (23) of the screw conveyor (3) passes through its housing and is rotatably connected to the upper end of the mounting frame (2); and a driven pulley (24) is installed on the outer edge of the rotating shaft; the driving pulley (22) and the driven pulley (24) are connected via a belt (25).

9. The poultry feed crushing and screening device according to claim 1, characterized in that: The aperture of the first sieve plate (8) is larger than the aperture of the second sieve plate (9).

10. The poultry feed crushing and screening device according to claim 1, characterized in that: Air-permeable mesh panels (26) are installed at the ends of the two air outlet pipes (14) in the air outlet direction.

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