A cleaning-free air lock device for a mixer

Abstract

The utility model discloses a kind of cleaning-free air lock device for mixer, it is related to poultry livestock and aquaculture technical field, including main casing, the front end of the main casing is equipped with front end cover, the rear end of the main casing is equipped with rear end cover, the inside of the main casing is provided with rotor assembly, the front and rear ends of the rotor assembly are respectively with front end cover and rear end cover penetration rotation connection, the front side top of the front end cover is fixedly installed with closed flange seat, the front side of the closed flange seat is equipped with speed reducer, the top of the speed reducer is connected with motor, this cleaning-free air lock device for mixer is arranged by transmission mechanism top, avoids bottom pipeline space, so that air inlet pipe, air outlet pipe is completely opposite rotor blade, wind force direct blow residue, solve blade caking problem, by optimizing transmission structure and pipeline butt joint design, the stability of device operation, the precision of discharge control, the convenience of maintenance and the efficiency of "cleaning-free" function are realized.

Description

Technical Field

[0001] This utility model relates to the field of poultry, livestock and aquaculture technology, specifically a cleaning-free airlock device for a mixer. Background Technology

[0002] In the poultry, livestock and aquaculture industry, the mixing of medicine liquid and solid pellet feed and the conveying of relatively moist feed are usually involved. After the pellet feed is mixed with medicine liquid and the relatively moist feed is moist, there will be sticky substances on the surface. After the feed is mixed, it is generally conveyed to the specific feeding area by air conveyor. However, the existing airlock still has certain defects in use.

[0003] As proposed in application number CN202022413790.X, a replaceable self-positioning sealing valve includes a valve body with a horizontally penetrating cylindrical cavity machined in the middle. A side cover is bolted to one side of the valve body. A discharge port and a feed port are symmetrically designed on the upper and lower surfaces of the valve body, respectively. A protective shell is fixedly connected to one side of the valve body, and a valve motor is fixedly connected to one side of the protective shell. The valve motor is a variable frequency speed-regulating motor. A top cover is fixedly installed at the center of the side cover, and a set screw is installed inside the top cover. A rotating shaft is rotatably connected inside the valve body. One end of the rotating shaft is rotatably connected inside the top cover, and the other end of the rotating shaft is located at the other end of the valve body. One end of the body is fixedly welded with a rotating wheel. In actual use, due to the viscous nature of the feed, it often adheres to the impeller blades of the airlock. If it is not cleaned in time, the feed will form clumps, greatly reducing the unloading efficiency of the airlock. If the clumps dry and fall off, they can easily cause pipe blockage, greatly increasing the maintenance workload for aquaculture operations. Moreover, clumps fed into the fishpond may be accompanied by unknown viruses, increasing the risk of aquaculture. At the same time, it cannot flexibly select the transmission group according to different torques and working conditions, such as conveying wet feed under high load and conveying pellet feed under low load. It relies solely on a fixed transmission method, which is difficult to adapt to the diverse feed conveying needs in aquaculture scenarios. Furthermore, once the transmission components are damaged, the entire unit needs to be replaced, resulting in higher maintenance costs.

[0004] Therefore, we propose a cleaning-free airlock device for mixers to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a cleaning-free airlock device for a mixer, in order to solve the problems mentioned in the background art, such as the fact that the viscous feed easily adheres to the impeller blades of the airlock and forms clumps, which reduces unloading efficiency, blocks pipes, increases the workload of maintenance in aquaculture operations and increases aquaculture risks, and makes it impossible to flexibly select the transmission group according to different torques and working conditions. The fixed transmission method is difficult to adapt to the diverse feed conveying needs, and the transmission components need to be replaced as a whole when damaged, resulting in higher maintenance costs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-cleaning airlock device for a mixer, comprising a main housing, a front cover installed at the front end of the main housing, a rear cover installed at the rear end of the main housing, a rotor assembly disposed inside the main housing, the front and rear ends of the rotor assembly being rotatably connected through the front cover and the rear cover respectively, a sealing flange seat being fixedly installed on the top front side of the front cover, a speed reducer being installed on the front side of the sealing flange seat, and a motor being connected to the top of the speed reducer;

[0007] A transmission mechanism is connected between the reducer and the front end of the rotor assembly;

[0008] An air outlet pipe is installed at the bottom of the front cover, and an air inlet pipe is installed at the bottom of the rear cover. The air outlet of the air inlet pipe and the air inlet of the air outlet pipe are both directly facing the blades of the rotor assembly. A docking mechanism is provided at the connection end of the air outlet pipe and the air inlet pipe.

[0009] Preferably, the transmission mechanism includes a driven gear fixedly mounted on the front end of the rotor assembly, and a driving gear is mounted on the shaft end of the reducer. The driving gear and the driven gear form a meshing transmission structure.

[0010] With the above-mentioned design, the gear meshing transmission structure can accurately transmit the power of the motor and reducer combination, ensuring that the rotor assembly can operate strictly according to the set fixed speed or intermittent operation mode, thereby accurately controlling the feed unloading flow rate and avoiding fluctuations in unloading volume caused by transmission slippage.

[0011] The structure is compact and located on top of the main housing, without occupying the installation space of the air inlet pipe at the bottom of the rear end cover. It has high transmission efficiency and low torque loss, and can drive the rotor blades to rotate stably, ensuring that the air force blows evenly on each blade and avoids local residue caused by speed fluctuations.

[0012] Preferably, the transmission mechanism includes a driven pulley fixedly installed at the front end of the rotor assembly, a driving pulley is installed at the shaft end of the reducer, and a transmission belt is fitted around the outer rings of the driven pulley and the driving pulley.

[0013] With the above-mentioned design, the belt drive structure transmits power through a flexible transmission belt, which can effectively buffer the impact load when the motor and reducer start, stop or fluctuate, greatly reduce the vibration amplitude and operating noise of the transmission system, and improve the overall stability of the device.

[0014] Flexible belt drives can further optimize the top space layout, completely avoid the bottom air duct, and at the same time buffer the impact load of the motor and reduce the vibration of the rotor blades (avoiding feed sticking). When overloaded, belt slippage can also protect the blades and ensure that the air path is always directly facing the blades.

[0015] Preferably, the transmission mechanism includes a driven synchronous pulley fixedly installed at the front end of the rotor assembly, and a driving synchronous pulley is installed on the shaft end of the reducer. The outer rings of the driven synchronous pulley and the driving synchronous pulley are fitted with V-belts.

[0016] The design of the above structure combines the "precision of gear transmission" and the "smoothness of belt transmission". The synchronous pulley and V-belt can ensure the stable speed of the rotor assembly, avoid the fluctuation of unloading flow due to transmission error, meet the precise control requirements of unloading speed in different feed conveying scenarios, and compared with pure gear transmission, the flexibility of V-belt can reduce the rigid friction of transmission components, reduce operating noise and component wear rate, and extend the service life of transmission system.

[0017] Furthermore, the synchronous pulley is small in size, the V-belt is flexible, and it occupies only a small space on the top of the front cover. It can be adapted to large-diameter air inlet and outlet pipes (increasing air volume). At the same time, the transmission ratio is precise, the rotor blades rotate at a uniform angle, and the air force blows the blades at a fixed frequency, avoiding incomplete blowing in some areas due to speed deviation.

[0018] Preferably, the docking mechanism includes a pagoda head that is fixedly installed at the connection end of the air outlet pipe and the air inlet pipe, and the pagoda head is locked with a steel wire clamp when a flexible hose is fitted onto it.

[0019] The pagoda head structure, designed with the above structure, is highly adaptable and can be quickly fitted with steel wire hoses or other flexible pipes without complicated welding or flange alignment operations. This greatly improves the connection efficiency between the airlock and the air delivery pipe, making it particularly suitable for complex installation spaces in aquaculture sites.

[0020] By locking the connection between the hose and the pagoda head with a steel wire clamp, the hose can be tightly tightened, effectively filling the gap between the pagoda head and the hose, ensuring the airtightness of the connection, avoiding positive air pressure leakage in the air delivery pipeline, and thus ensuring that the positive air pressure can fully act on the rotor cavity of the airlock, thoroughly blowing away the feed residue adhering to the rotor assembly, achieving the "clean-free" function.

[0021] Preferably, the docking mechanism includes a fixed base that is fixedly installed at the connection end of the air outlet pipe and the air inlet pipe, and a docking seat is movably connected to the docking end of the fixed base. A sealing gasket is fitted between the docking seat and the fixed base. After the fixed base and the docking seat are docked, a clamp assembly is fitted around the outer ring to achieve locking.

[0022] The design of the above structure, with the split structure of the fixed seat and the docking seat and the clamp assembly, can realize the quick assembly and disassembly of the air outlet pipe, air inlet pipe and air delivery pipe. Compared with the traditional flange bolt connection, there is no need to disassemble the bolts one by one, which greatly shortens the disassembly and assembly time when the device is repaired, the pipe is cleaned or replaced, and improves maintenance efficiency.

[0023] The sealing gasket at the joint can fit tightly against the end face of the fixed seat and the docking seat, completely sealing the joint gap, minimizing the loss of positive air pressure in the air delivery pipeline, ensuring that the air force can efficiently blow the feed in the rotor assembly to the feeding area, while avoiding the decrease in conveying efficiency due to air pressure leakage, improving the sealing performance and structural reliability of the connection, and reducing feed leakage or insufficient air pressure caused by pipeline loosening.

[0024] Compared with existing technologies, the beneficial effects of this utility model are as follows: This mixer uses a self-cleaning airlock device with a top-mounted transmission mechanism that avoids space for bottom pipes, ensuring that the inlet and outlet pipes are directly aligned with the rotor blades. This direct airflow eliminates residue buildup, solving the problem of blade clumping. By optimizing the transmission structure and pipe connection design, the device achieves operational stability, precise unloading control, convenient maintenance, and high efficiency in its "self-cleaning" function. It can meet the needs of long-term stable operation, precise feed delivery control, and reduced maintenance costs in aquaculture operations, thus improving the overall practicality and adaptability of the airlock device. Specific details are as follows:

[0025] 1. The gear transmission structure transmits power precisely through gear meshing, ensuring that the rotor runs at the set speed, stably controlling the unloading flow rate, with high transmission efficiency and low torque loss. It is suitable for conveying wet or mixed feed, has a compact structure, high reliability, and reduces failures and maintenance workload.

[0026] 2. The flexible belt in the belt drive structure buffers the impact load, reduces vibration and noise, improves the smoothness of operation, has overload protection function to avoid damage to core components, has a simple structure and low cost, and the belt is easy to replace, reducing maintenance costs and downtime.

[0027] 3. The synchronous pulley and V-belt drive combine transmission precision and smooth operation, ensuring stable unloading speed; the V-belt reduces rigid friction, lowers noise and wear, and extends service life; installation and adjustment are convenient, maintenance and replacement are simple, and it is suitable for continuous operation.

[0028] 4. The pagoda head docking mechanism can quickly connect to the air delivery pipeline, adapt to complex installation spaces, and the steel wire clamps ensure airtightness, prevent air pressure leakage, and ensure that the air force thoroughly cleans the rotor of residual feed, achieving "cleaning-free" operation.

[0029] 5. The clamp assembly in the docking mechanism between the fixed seat and the docking seat enables quick disassembly and assembly of the pipeline, greatly shortening maintenance time. The sealing gasket ensures a tight connection, reduces wind pressure loss, improves conveying efficiency and structural reliability, and reduces the risk of feed leakage. Attached Figure Description

[0030] Figure 1 This is a side view of the appearance structure of an embodiment of the present utility model;

[0031] Figure 2 This is a side exploded view of an embodiment of the present invention;

[0032] Figure 3 This is a side sectional view of the main housing structure of this utility model;

[0033] Figure 4 This is a side exploded view of Embodiment 2 of the present invention;

[0034] Figure 5 This is a side sectional view of the transmission mechanism in Embodiment 2 of this utility model;

[0035] Figure 6 This is a side view exploded structural diagram of embodiment three of this utility model;

[0036] Figure 7 This is a side sectional view of the transmission mechanism in Embodiment 3 of this utility model;

[0037] Figure 8 This is an exploded structural diagram of the docking mechanism in Embodiment 4 of this utility model.

[0038] In the diagram: 1. Main housing; 2. Front cover; 3. Rear cover; 4. Rotor assembly; 5. Sealing flange seat; 6. Reducer; 7. Motor; 8. Driven gear; 9. Driven gear; 10. Driven pulley; 11. Driven pulley; 12. Transmission belt; 13. Driven synchronous pulley; 14. Driven synchronous pulley; 15. V-belt; 16. Air outlet duct; 17. Air inlet duct; 18. Pagoda head; 19. Fixed seat; 20. Connecting seat; 21. Sealing gasket; 22. Clamp assembly. Detailed Implementation

[0039] 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.

[0040] Example 1: Please refer to Figure 1-3 This utility model provides a technical solution: a self-cleaning airlock device for a mixer, comprising a main housing 1, characterized in that: a front cover 2 is installed at the front end of the main housing 1, a rear cover 3 is installed at the rear end of the main housing 1, a rotor assembly 4 is disposed inside the main housing 1, the front and rear ends of the rotor assembly 4 are respectively rotatably connected to the front cover 2 and the rear cover 3, a sealing flange seat 5 is fixedly installed on the front top of the front side of the front cover 2, a reducer 6 is installed on the front side of the sealing flange seat 5, a motor 7 is connected to the top of the reducer 6, and a transmission mechanism is connected between the reducer 6 and the front end of the rotor assembly 4. The structure includes a driven gear 8 fixedly installed at the front end of the rotor assembly 4, a driving gear 9 installed at the shaft end of the reducer 6, the driving gear 9 and the driven gear 8 forming a meshing transmission structure, an air outlet pipe 16 installed at the bottom of the front end cover 2, and an air inlet pipe 17 installed at the bottom of the rear end cover 3. The air outlet of the air inlet pipe 17 and the air inlet of the air outlet pipe 16 are both directly facing the blades of the rotor assembly 4. A docking mechanism is provided at the connection end of the air outlet pipe 16 and the air inlet pipe 17. The docking mechanism includes a pagoda head 18 fixedly installed at the connection end of the air outlet pipe 16 and the air inlet pipe 17. When the pagoda head 18 is fitted with a flexible hose, it is locked by a steel wire clamp.

[0041] The above structure is designed so that the motor 7 provides power, which is then reduced by the reducer 6 and transmitted to the drive gear 9 at the shaft end. Since the drive gear 9 and the driven gear 8 fixed at the front end of the rotor assembly 4 form a meshing transmission structure, the reduced power can accurately drive the rotor assembly 4 to operate stably inside the main housing 1 around the through-rotation connection point between the front cover 2 and the rear cover 3. When the mixed medicine and solid pellet feed or relatively moist feed is transported to the top of the main housing 1, the rotating rotor assembly 4 receives the feed above through its own structure and drives it to the area below the main housing 1. At this time, the wind from the external air delivery system enters the device through the air inlet pipe 17 at the bottom of the rear cover 3 and acts on the feed in the area below the rotor assembly 4, blowing the feed from the cavity of the rotor assembly 4 to the air outlet pipe 16 at the bottom of the front cover 2. Finally, the feed is transported to the feeding area through the air outlet pipe 16, thereby blowing away the residual feed and achieving the "clean-free" function.

[0042] During this process, the rotor of the airlock has an outer diameter of 187mm and an inner diameter of 87mm, with a difference of 50mm between its upper and lower radii. The airlock uses an inlet pipe 17 and an outlet pipe 16 with an inner diameter of 54.2mm, which just cover the cavity of the rotor assembly 4. The rotor assembly 4 has a cavity structure, which can ensure that the two fan blades of the rotor assembly 4 remain relatively sealed at any time, with a sealing gap of less than 0.2mm, ensuring that only a small amount of air can be transmitted to the discharge port above the main housing 1.

[0043] Example 2: Based on Example 1, this utility model adopts the following... Figure 4-5 The technical solution shown further discloses that the transmission mechanism includes a driven pulley 10 fixedly installed at the front end of the rotor assembly 4, a driving pulley 11 installed at the shaft end of the reducer 6, and a transmission belt 12 meshing with the outer rings of the driven pulley 10 and the driving pulley 11.

[0044] In the above structure design, the power output of motor 7 is reduced by reducer 6 and then transmitted to the drive pulley 11 installed on the shaft end of reducer 6, driving drive pulley 11 to rotate synchronously. Since driven pulley 10 is fixedly installed at the front end of rotor assembly 4, and transmission belt 12 is meshed and sleeved on the outer ring of drive pulley 11 and driven pulley 10, the rotation of drive pulley 11 will drive driven pulley 10 to rotate synchronously through the flexible transmission of transmission belt 12, thereby driving rotor assembly 4 to rotate stably inside main housing 1 along the through rotation connection point with front cover 2 and rear cover 3.

[0045] The flexibility of belt drive can buffer the impact load when the motor 7 and reducer 6 start or when the load fluctuates, reduce the vibration and operating noise of the transmission system. At the same time, when the rotor assembly 4 experiences a short-term overload due to excessive temporary feed adhesion, the transmission belt 12 can slip slightly with the pulley to avoid damage to the core components due to overload, further improving the stability and safety of the device operation.

[0046] Example 3: Based on Example 1, this utility model adopts the following... Figure 6-7 The technical solution shown further discloses that the transmission mechanism includes a driven synchronous pulley 13 fixedly installed at the front end of the rotor assembly 4, a driving synchronous pulley 14 installed at the shaft end of the reducer 6, and a V-belt 15 sleeved on the outer ring of the driven synchronous pulley 13 and the driving synchronous pulley 14.

[0047] In the above structure design, the power output of motor 7 is reduced by reducer 6 and then transmitted to the active synchronous pulley 14 installed on the shaft end of reducer 6. The active synchronous pulley 14 is driven to rotate stably at the set speed. Since the driven synchronous pulley 13 is fixedly installed at the front end of rotor assembly 4 and the V-belt 15 is tightly fitted on the outer ring of the active synchronous pulley 14 and the driven synchronous pulley 13, the rotation of the active synchronous pulley 14 will be transmitted through the V-belt 15, driving the driven synchronous pulley 13 to rotate synchronously, thereby driving rotor assembly 4 to rotate smoothly inside the main housing 1 along the through-rotation connection point with the front cover 2 and the rear cover 3.

[0048] The transmission design of the V-belt 15 with the driven synchronous pulley 13 and the driving synchronous pulley 14 not only ensures the accuracy of the transmission ratio, but also relies on the flexibility of the V-belt 15 to buffer the impact load when the motor 7 and reducer 6 start or when the load fluctuates, thereby reducing the vibration and operating noise of the transmission system. At the same time, it reduces the rigid wear of the transmission components, extends the service life of the transmission system, and is suitable for the needs of long-term and stable feed delivery in aquaculture scenarios.

[0049] Example 4: Based on Example 1, this utility model adopts the following... Figure 8 The technical solution shown further discloses that the docking mechanism includes a fixed seat 19 fixedly installed at the connection end of the air outlet pipe 16 and the air inlet pipe 17, a docking seat 20 is movably connected to the docking end of the fixed seat 19, a sealing gasket 21 is attached between the docking seat 20 and the fixed seat 19, and a clamp assembly 22 is sleeved on the outer ring of the fixed seat 19 and the docking seat 20 after docking to achieve locking.

[0050] In the above-mentioned structural design, during the device installation stage, the fixing base 19 needs to be fixedly installed on the connection end of the air outlet pipe 16 and the air inlet pipe 17 respectively. Then, the docking base 20 is installed on the port of the external air delivery pipe to complete the pre-installation of the components before docking. When it is necessary to connect the air outlet pipe 16 and the air inlet pipe 17 of the airlock to the external air delivery pipe, the sealing gasket 21 is first flatly attached to the docking end face of the fixing base 19 so that the sealing gasket 21 completely covers the contact area of ​​the fixing base 19 and the docking base 20, pre-filling the gap after the two are docked, providing a basic guarantee for airtightness.

[0051] Then, align and fit the port of the docking seat 20 with the docking end of the fixed seat 19, so that the sealing gasket 21 is tightly clamped between the two. Then, put the clamp assembly 22 on the outer ring after the fixed seat 19 and the docking seat 20 are docked, and fix it through the locking structure of the clamp assembly 22, so that the clamp assembly 22 generates a uniform ring clamping force, firmly locking the fixed seat 19 and the docking seat 20, ensuring that the docking part always maintains a tight fit during long-term operation.

[0052] When the airlock needs to be disassembled and repaired, the clamp assembly 22 can be reversed to remove the clamp and separate the fixing seat 19 from the docking seat 20. There is no need to remove multiple bolts one by one, which greatly simplifies the disassembly and assembly process and meets the design requirement of "easy disassembly and repair" of the airlock.

[0053] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0054] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-cleaning airlock device for a mixer, comprising a main housing (1), characterized in that: The front end of the main housing (1) is equipped with a front end cover (2), the rear end of the main housing (1) is equipped with a rear end cover (3), the main housing (1) is equipped with a rotor assembly (4), the front and rear ends of the rotor assembly (4) are respectively rotatably connected to the front end cover (2) and the rear end cover (3), a closed flange seat (5) is fixedly installed on the front top of the front end cover (2), a speed reducer (6) is installed on the front side of the closed flange seat (5), and a motor (7) is connected to the top of the speed reducer (6). A transmission mechanism is connected between the reducer (6) and the front end of the rotor assembly (4); An air outlet pipe (16) is installed at the bottom of the front end cover (2), and an air inlet pipe (17) is installed at the bottom of the rear end cover (3). The air outlet of the air inlet pipe (17) and the air inlet of the air outlet pipe (16) are both directly facing the blades of the rotor assembly (4). A docking mechanism is provided at the connection end of the air outlet pipe (16) and the air inlet pipe (17).

2. A cleanout shut-off device for a blender as defined in claim 1, wherein: The transmission mechanism includes a driven gear (8) fixedly installed at the front end of the rotor assembly (4), and a driving gear (9) is installed on the shaft end of the reducer (6). The driving gear (9) and the driven gear (8) form a meshing transmission structure.

3. A cleanout shut-off device for a blender as defined in claim 1, wherein: The transmission mechanism includes a driven pulley (10) fixedly installed at the front end of the rotor assembly (4), and a driving pulley (11) is installed on the shaft end of the reducer (6). The outer rings of the driven pulley (10) and the driving pulley (11) are fitted with a transmission belt (12).

4. A cleanout shut-off device for a blender as defined in claim 1, wherein: The transmission mechanism includes a driven synchronous pulley (13) fixedly installed at the front end of the rotor assembly (4), and a driving synchronous pulley (14) is installed on the shaft end of the reducer (6). The outer rings of the driven synchronous pulley (13) and the driving synchronous pulley (14) are fitted with V-belts (15).

5. A cleanout shut-off device for a blender as defined in claim 1, wherein: The docking mechanism includes a pagoda head (18) fixedly installed at the connection end of the air outlet pipe (16) and the air inlet pipe (17). When the pagoda head (18) is fitted with a flexible hose, it is locked by a steel wire clamp.

6. A cleanout shut-off device for a blender as defined in claim 1, wherein: The docking mechanism includes a fixed base (19) fixedly installed at the connection end of the air outlet pipe (16) and the air inlet pipe (17). The docking end of the fixed base (19) is movably connected to a docking seat (20). A sealing gasket (21) is fitted between the docking seat (20) and the fixed base (19). After the fixed base (19) and the docking seat (20) are docked, a clamp assembly (22) is fitted on the outer ring to achieve locking.

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