Cantilever quick-release air seal machine

Abstract

The embodiment of the utility model discloses a cantilever quick-release air seal machine which comprises a shell, a rotor assembly and a quick-release mechanism, and a machine cavity is formed in the shell; the rotor assembly penetrates through the machine cavity in the circumferential direction and comprises a rotor main shaft and an impeller arranged on the rotor main shaft in a sleeving mode. And the quick dismounting mechanism comprises a fixing piece penetrating through the center of one end of the impeller, the fixing piece is detachably connected with the end of the rotor main shaft, and the impeller and the rotor main shaft are relatively fixed through the quick dismounting mechanism. According to the cantilever quick-release air seal machine, the impeller and the rotor main shaft of the rotor assembly are installed in the shell through the quick-release structure, when materials need to be cleaned, the impeller and the rotor main shaft are detached and separated through the quick-release structure, the impeller is directly taken out for cleaning, and operation is easy, convenient, quick and safe.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air lock, in particular to a cantilever quick-release air lock. BACKGROUND

[0002] The air lock (also known as air lock, rotary valve) is a key equipment in the pneumatic conveying system, and is widely used in the feeding and unloading of powder and particle materials (such as flour, starch, feed, chemical powder, etc.). Its core function is to transport the material from the hopper to the system in a timely and quantitative manner through the rotating movement of the impeller, while blocking the external gas from entering, maintaining the stability of the internal pressure of the system, and realizing the air locking and pressure maintaining. The structure of the traditional air lock includes a cylindrical shell, a rotor shaft and an impeller. The material falls into the impeller from the upper hopper and is discharged to the bottom of the shell along with the rotation of the impeller. However, when dealing with materials with high viscosity and easy arching (such as gelatinized starch, high-viscosity chemical powder and sugar-containing materials), there are problems of material adhesion and gelatinization, low maintenance efficiency and difficulty in cleaning. For example, viscous materials are easy to adhere to the surface of the impeller and the inner wall of the shell, and form hard blocks (gelatinization phenomenon) after long-term accumulation, resulting in increased resistance to rotation of the impeller, and even causing the equipment to be stuck. In addition, the connection between the traditional impeller and the main shaft needs to be disassembled and reassembled, which takes a long time and affects the production efficiency. Moreover, the contact surface between the shell and the impeller has high roughness, and the residual material is difficult to completely remove, which is easy to breed bacteria or contaminate the material, especially in food, medicine and other high hygiene requirement scenes.

[0003] In the prior art, some improvement schemes try to alleviate the adhesion problem by increasing the cleaning hole or optimizing the shape of the blade, but the addition of the cleaning mechanism increases the size of the equipment and the manufacturing cost, and also makes the structure more complex, which cannot fundamentally solve the problem of low efficiency. Therefore, it is necessary to design an air lock which can be quickly disassembled, avoid adhesion and maintain conveniently. CONTENT OF THE UTILITY MODEL

[0004] The main purpose of the present application is to provide a cantilever quick-release air lock, which aims to solve the technical problem of low maintenance efficiency of the existing air lock and difficulty in disassembly and cleaning.

[0005] To achieve the above-mentioned purpose, the present application provides a cantilever quick-release air lock, which comprises:

[0006] A shell is provided with a machine cavity;

[0007] A rotor assembly is provided, which penetrates the machine cavity in the circumferential direction, and comprises a rotor shaft and an impeller sleeved on the rotor shaft;

[0008] The quick release mechanism comprises a fixing member penetrating through the center of one end of the impeller, and the fixing member is detachably connected with the end of the rotor main shaft, and the impeller is kept relatively fixed with the rotor main shaft through the quick release mechanism.

[0009] For example, in the cantilever quick release damper provided by at least one embodiment of the present application, the fixing member is a threaded member, and the end of the rotor main shaft is provided with a screw hole matched with the threaded member.

[0010] For example, in the cantilever quick release damper provided by at least one embodiment of the present application, a handle is installed on the threaded member away from the end of the rotor main shaft, and the handle is used to generate torque when the threaded member is installed on or detached from the rotor main shaft.

[0011] For example, in the cantilever quick release damper provided by at least one embodiment of the present application, the cantilever quick release damper further comprises a protective cover, and the protective cover covers the outer side of the handle and is detachably connected with the housing.

[0012] For example, in the cantilever quick release damper provided by at least one embodiment of the present application, the blades of the impeller and the inner cavity surface of the housing are coated with an anti-sticking coating.

[0013] For example, in the cantilever quick release damper provided by at least one embodiment of the present application, the blade surface of the impeller and the inner side surface of the inner cavity surface of the housing are polished, and the surface roughness Ra is less than or equal to 0.8 μm.

[0014] For example, in the cantilever quick release damper provided by at least one embodiment of the present application, the blades of the impeller are independently installed on the hub, and the end of each blade is provided with a scraper.

[0015] For example, in the cantilever quick release damper provided by at least one embodiment of the present application, the impeller is provided with a sealing member on both ends penetrating through the cavity.

[0016] For example, in the cantilever quick release damper provided by at least one embodiment of the present application, the cantilever quick release damper further comprises a motor, and the output end of the motor is connected with the other end of the rotor main shaft.

[0017] For example, in the cantilever quick release damper provided by at least one embodiment of the present application, the output end of the motor is connected with the rotor main shaft through a magnetic coupling.

[0018] Compared with the existing air lock, the cantilever quick-release air lock has at least the following beneficial effects: the rotor assembly is arranged through the cylindrical machine cavity of the shell, and the impeller and the rotor shaft of the rotor assembly are assembled in a sleeved manner, which is simple and convenient to assemble and efficient to disassemble; the impeller and the rotor shaft are installed and fixed through the quick-release structure, more specifically, the impeller is fixed at the end of the rotor shaft through the detachable fixing piece, which ensures consistent motion relationship and facilitates quick release and quick assembly, modular operation during cleaning. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings shown.

[0020] Figure 1 It is an overall structure schematic diagram of an embodiment of the cantilever quick-release air lock of the present application.

[0021] Figure 2 It is an overall structure schematic diagram of an embodiment of the cantilever quick-release air lock of the present application. Figure 1 It is a cross-sectional view of the internal structure of the cantilever quick-release air lock.

[0022] Figure 3 It is an overall structure schematic diagram of an embodiment of the cantilever quick-release air lock of the present application.

[0023] Reference signs: 10, shell; 11, cylindrical machine cavity; 20, rotor assembly; 21, rotor shaft; 210, screw port; 22, impeller; 221, blade; 222, hub; 30, fixing piece; 31, handle; 40, shroud; 50, sealing piece; 60, motor.

[0024] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0027] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixing" and the like should be understood broadly, for example, "fixing" can be fixed connection, or detachable connection, or integrated; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] In addition, if the present application embodiments involve "first", "second" and the like, the "first", "second" and the like are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. For example, "A and / or B" includes A solution, or B solution, or A and B solution. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0029] As Figure 1 shown is an embodiment of a cantilever quick-release damper, which comprises a shell 10, a rotor assembly 20 and a quick-release mechanism, a cylindrical machine cavity 11 is arranged in the shell; the rotor assembly 20 penetrates the cylindrical machine cavity 11 from the circumference, and the rotor assembly 20 comprises a rotor main shaft 21 and an impeller 22 sleeved on the rotor main shaft 21; the quick-release mechanism comprises a fixing piece 30 penetrating the center of one end of the impeller 22, the fixing piece 30 is detachably connected with the end of the rotor main shaft 21, and the impeller 22 is kept relatively fixed with the rotor main shaft 21 through the quick-release mechanism.

[0030] Specifically, in Figure 1The rotor shaft 21 of the rotor assembly 20 crosses the cylindrical machine cavity 11 in the circumferential direction, and the impeller 22 is sleeved on the rotor shaft 21 inside the cylindrical machine cavity 11. In operation, the material is poured into the machine from the upper opening, the rotor shaft 21 drives the impeller 22 to rotate under the action of external force, and the material is discharged from the lower opening. The impeller 22 sleeved on the rotor shaft 21 is fixed by the quick-release structure, so that the two maintain a consistent motion relationship. During maintenance and cleaning, the locking relationship between the rotor shaft 21 and the impeller 22 can be released by disassembling the fixing member 30 of the quick-release structure, and the impeller 22 can be disassembled from the rotor shaft 21 and the shell 10 can be cleaned. Compared with the traditional air lock, the modular structure and simple connection relationship can facilitate disassembly and assembly, and significantly improve the operation efficiency.

[0031] In the above embodiment, the quick-release structure has various implementation forms, and the application provides two specific embodiments, namely a threaded connection mode and a buckle connection mode.

[0032] For example, in an embodiment, the fixing member 30 of the quick-release structure is a threaded member, and the end of the rotor shaft 21 is provided with a screw hole 210 matched with the threaded member. Figure 2 As shown in the figure, the end of the rotor shaft 21 sleeved on the impeller 22 is provided with an internally threaded screw hole 210, and the fixing member 30 can be a threaded member such as a screw or a bolt having an external thread. When installed and fixed, the one end of the impeller 22 and the one end of the rotor shaft 21 are tightly fixed by the threaded member, so as to avoid the slippage of the impeller 22 when the rotor shaft 21 rotates.

[0033] In particular, in order to ensure the transmission efficiency, a spline (not shown in the figure) can be arranged on the outside of the end of the rotor shaft 21 provided with the screw hole 210, and a matching key hole is arranged at the corresponding position of the impeller 22, so as to form a key cooperation, and the rotation of the rotor shaft 21 is more effectively transmitted to the impeller 22. In addition, the screw hole 210 at the end of the rotor shaft 21 can also be left with a part of longitudinal depth inward (as shown in the figure), so as to form a redundant space for the installation of the threaded member, and improve the installation adaptability. Figure 2

[0034] Specifically, in order to facilitate operation, the threaded member is installed with a handle 31 away from the end side of the rotor shaft 21 on the basis of the above embodiment, which is used to generate torque when the threaded member is installed on or disassembled from the rotor shaft 21. The handle 31 can adopt a sleeve-peg form, that is, a circular ring having a through hole is used, and a through hole is also arranged at the corresponding position of the end of the threaded member, and a torque is formed by inserting a pin key, so as to facilitate the torsion.

[0035] ​In another embodiment, the fixing member 30 of the quick release structure can be a plurality of cantilevered elastic buckles arranged at the end of the impeller hub 222, made of spring steel or high-toughness engineering plastic, and designed with a wedge-shaped protrusion at the end, while a locking groove is arranged at a specific position on the rotor shaft 21. During the process of assembling the impeller hub 222 to the rotor shaft 21, the wedge-shaped protrusion of the elastic arm is in contact with the end of the shaft through the deformation of the elastic buckle, and slides along the outer wall of the shaft during the assembly. When the protrusion slides into the annular locking groove of the shaft, the elastic arm restores the deformation, the protrusion is locked in the groove, and the impeller 22 is fixed by the self-locking of the inclined surface. This structure can also achieve quick disassembly and good fixing effect. In addition to the buckle implementation form provided in this embodiment, other buckle connection methods such as rotary buckle locking mechanism can also achieve the function of quick release structure, which will not be described here.

[0036] In the above embodiment, further, the cantilevered quick release air lock further comprises a protective cover 40 covering the outside of the handle 31 and detachably connected with the shell 10. By installing the protective cover 40 on the shell 10, the installed quick release structure can be effectively protected, avoiding the loosening between the impeller 22 and the rotor shaft 21 caused by accidental touch or misoperation, and ensuring safety. At the same time, the protective cover 40 can prevent pollution and block external dust or foreign matter from entering the inside of the equipment, reducing the risk of material pollution.

[0037] Specifically, the protective cover 40 can be made of ABS plastic or metal and connected with the sidewall of the shell 10 by buckle or screw. Possibly, a groove is reserved on the inside of the protective cover 40, covering the handle 31 and automatically locking the buckle, which can be removed by pressing the buckle protrusion when disassembled.

[0038] In one embodiment, the blades 221 of the impeller 22 and the inner cavity surface of the shell 10 are coated with an anti-sticking coating. For example, the blades 221 of the impeller 22 and the inner cavity of the shell 10 are sprayed with a polytetrafluoroethylene (PTFE) coating with a thickness of 50 μm. Before spraying, the substrate is sandblasted (Sa2.5 level), and the surface friction coefficient of the coating after curing is ≤0.1, which reduces the adhesion of sticky materials and further reduces the cleaning and maintenance workload and difficulty.

[0039] Similarly, the surface of the blades 221 of the impeller 22 and the inner surface of the inner cavity surface of the shell 10 are polished, with a surface roughness Ra≤0.8 μm, which can also reduce the adhesion of sticky materials by reducing the roughness of the internal structure.

[0040] In one embodiment, the blades 221 of the impeller 22 are each independently mounted on the hub 222, and the end of each blade 221 is mounted with a scraper (not shown in the figure). Specifically, the blades 221 can be independently mounted on the hub 222 through T-shaped slots, and the end is embedded in a flexible scraper, such as a polyurethane scraper, and the length of the scraper exceeds the blade 221 by 2 mm. When the impeller 22 rotates, the scraper elastically adheres to the inner wall of the shell 10 to scrape off the residual material, thereby reducing the need for cleaning the shell 10.

[0041] In one embodiment, the impeller 22 is provided with a sealing member 50 on the end of the cylindrical cavity 11. For example, an O-shaped rubber ring is mounted on both ends of the impeller 22 and embedded in the annular groove of the rotor shaft 21. Through the elastic properties of the O-shaped rubber ring, the air tightness between the impeller 22 and the end cover of the shell 10 is ensured, the leakage rate is reduced, and material leakage is avoided.

[0042] In one embodiment, as shown in Figure 3 The cantilever quick-release air lock further includes a motor 60, and the output end of the motor 60 is connected to the other end of the rotor shaft 21. Specifically, the motor 60 can be, for example, a three-phase asynchronous motor, a servo motor, a brushless DC motor, etc., which is selected according to different working requirements and use orientations. For example, the three-phase asynchronous motor has a lower cost and has obvious economic advantages in conventional grain and feed conveying scenarios; the servo motor has a fast response and high precision, and is suitable for scenarios that require variable speed or frequent changes in load, such as precise powder feeding in chemical industry.

[0043] In a more specific embodiment, the output end of the motor 60 is connected to the rotor shaft 21 through a magnetic coupling. The magnetic coupling can be a permanent magnet synchronous magnetic coupling or an electromagnetic coupling, etc. The magnetic coupling is used to drive the rotor shaft 21, which replaces the traditional mechanical shaft seal, can avoid the risk of material leakage, and is beneficial to disassembly and assembly operations.

[0044] In addition to the related structures described in the above embodiments, the cantilever air lock of the present application also includes other necessary parts, which can be supplemented by those skilled in the art as needed to achieve the normal function of the air lock, and the present application will not explain and describe them one by one.

[0045] The above description is only an optional embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made by using the contents of the present application specification and drawings, or direct / indirect application in other related technical fields under the inventive concept of the present application is included in the patent protection scope of the present application.

Claims

1. A cantilever quick release windlass, characterized by, The invention relates to a cantilever quick-release air lock, comprising: a housing, which is internally provided with a machine cavity; a rotor assembly, which penetrates the machine cavity in the circumferential direction, and comprises a rotor shaft and an impeller sleeved on the rotor shaft; a quick-release mechanism, which comprises a fixing member penetrating the center of one end of the impeller, and is detachably connected with the end of the rotor shaft, and the impeller is kept relatively fixed with the rotor shaft by the quick-release mechanism.

2. The cantilever quick disconnect draft gear of claim 1, wherein, The fixing member is a threaded member, and the end of the rotor shaft is provided with a screw hole matched with the threaded member.

3. The quick release suspension wind turbine of claim 2, wherein, A handle is mounted on the threaded member away from the end of the rotor shaft, for generating torque when the threaded member is mounted on or detached from the rotor shaft.

4. The quick release suspension wind catcher of claim 3, wherein, The cantilever quick-release air lock further comprises a protective cover, which covers the outer side of the handle and is detachably connected with the housing.

5. The quick release stay according to claim 1, wherein, The blades of the impeller and the inner cavity surface of the housing are coated with an anti-sticking coating.

6. The quick release stay according to claim 1, wherein, The blade surface of the impeller and the inner side surface of the inner cavity surface of the housing are polished, and the surface roughness Ra is less than or equal to 0.8 μm.

7. The quick release suspension wind turbine of claim 6, wherein, The blades of the impeller are independently mounted on a hub, and the end of each blade is provided with a scraper.

8. The quick release drawbridge gear of claim 1, wherein, The end of the impeller penetrating the machine cavity is provided with a sealing member.

9. The quick release drawbridge gear of claim 1, wherein, The cantilever quick-release air lock further comprises a motor, and the output end of the motor is connected with the other end of the rotor shaft.

10. The quick release stay according to claim 9, wherein, The output end of the motor is connected with the rotor shaft by a magnetic coupling.

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