Star discharger for graphene preparation

Abstract

The utility model discloses a star-shaped discharger for graphene preparation, and relates to the technical field of star-shaped dischargers, the star-shaped discharger for graphene preparation comprises a shell, a sealing assembly is arranged on one side of the shell, a rotating shaft transversely penetrates through the interior of the shell, a second sleeve is fixedly installed on the outer side of a first sleeve, and the second sleeve is fixedly installed on the outer side of a second sleeve. A plurality of detachable blades are evenly distributed on the outer wall of the second sleeve in the circumferential direction, convex blocks are arranged at the ends, close to the second sleeve, of the blades, convex grooves are formed in the corresponding positions of the second sleeve, the convex blocks are installed in the convex grooves in a sliding mode, and limiting plates are tightly attached to one sides of the blades. Independent installation and disassembly of each blade are achieved through a sliding structure of the convex blocks and the convex grooves, the disassembly and assembly design of the blades is decoupled from the overall structure, an independent module is formed, therefore, when a single blade needs to be damaged or needs to be cleaned and maintained, the single blade can be directly disassembled and replaced, the accuracy of the installation position of the blades is guaranteed through a sliding installation mode, and the installation efficiency is improved. And the problem of non-uniform discharging caused by assembly errors is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of star-shaped unloaders, specifically to a star-shaped unloader for graphene preparation. Background Technology

[0002] A rotary valve is a special type of unloading device. It mainly consists of a rotor impeller with several blades, a housing, seals, a reducer, and a motor. The material falls into the gap between the impeller blades by its own weight. As the impeller rotates, the material is carried to the bottom and then unloaded by its own weight, thus achieving continuous and quantitative unloading of the material. Therefore, rotary valves are widely used in the precise control and conveying process of graphene preparation.

[0003] When transporting graphene, the existing star-shaped unloaders have internal blades that easily adhere to the blade surface. This not only significantly increases the blade rotation resistance, leading to a decrease in unloading efficiency, but also causes problems such as graphene embedding and adhesion, resulting in blade gap blockage, structural damage, and residue that may be mixed into the next batch of products, affecting quality. Therefore, the blades need to be cleaned and maintained regularly.

[0004] For example, the patented patent CN218619158U discloses a novel star-shaped unloader housing structure. The blades described in the patent are arranged in multiple ways and are fixedly installed on the outside of the rotating shaft. The blades are located inside the housing. This integrated design results in the blades and the rotating shaft forming a rigid connection that cannot be disassembled or replaced separately. Since the blades cannot be disassembled, it is difficult to completely remove the residue, which is not convenient for maintenance and further increases the difficulty of cleaning.

[0005] Therefore, it is necessary to develop a star-shaped unloader for graphene preparation to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a star-shaped unloader for graphene preparation, which solves the problem that in the technology, the blades cannot be disassembled or replaced individually, resulting in the inability to completely remove residues, which is not only inconvenient for maintenance but also further increases the difficulty of cleaning.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a star-shaped unloader for graphene preparation, comprising a housing, a sealing assembly on one side of the housing, a rotating shaft running transversely through the interior of the housing, a first sleeve fixedly installed on the outer side of the portion of the rotating shaft inside the housing, a second sleeve fixedly installed on the outer side of the first sleeve, a plurality of detachable blades evenly distributed circumferentially on the outer wall of the second sleeve, a convex block provided at one end of each blade near the second sleeve, a convex groove provided at the corresponding position of the second sleeve, the convex block being slidably installed in the convex groove, and one side of each of the plurality of blades being tightly abutted against a limiting plate.

[0008] By adopting the above technical solution, the sliding installation method of the convex block and convex groove realizes the disassembly and assembly of the blade, which facilitates the later cleaning, replacement and maintenance of the blade.

[0009] The present invention is further configured such that a feed inlet is provided at the top of the housing and a discharge outlet is provided at the bottom of the housing, and both the feed inlet and the discharge outlet are connected to the interior of the housing.

[0010] By adopting the above technical solution, the material can flow in a directional manner from top to bottom, ensuring the continuity and efficiency of the unloading process.

[0011] The present invention is further configured such that the sealing assembly includes a mounting end cap welded to one side of the outer side of the housing, a sealing end cap is provided on one side of the mounting end cap, and a sealing ring is provided on the contact surface between the sealing end cap and the mounting end cap.

[0012] By adopting the above technical solution, a sealing ring is set on the contact surface between the sealing end cap and the mounting end cap to enhance the sealing performance, prevent dust or gas leakage, and protect internal components from contamination.

[0013] The present invention is further configured such that the sealing assembly includes a fixing screw and a fixing nut adapted thereto. The fixing screw extends through the sealing end cover and protrudes to the outside of the mounting end cover. The fixing nut is fitted onto the protruding end of the fixing screw and is fixed by the threads on the outer wall of the fixing screw and the threads on the inner wall of the fixing nut.

[0014] By adopting the above technical solution and fixing it with threads, a detachable connection between the sealing end cover and the mounting end cover can be achieved, which facilitates maintenance and repair.

[0015] The present invention is further configured such that a bracket is provided on one side of the sealing assembly, a reducer is provided above the bracket, a motor is provided on one side of the reducer, and the output end of the motor is connected to the input end of the reducer.

[0016] By adopting the above technical solution, the motor drives the rotating shaft after being reduced in speed by the reducer, achieving low-speed, high-torque output and meeting the unloader's demand for rotational power.

[0017] The present invention is further configured such that a fixed end cover is installed on the other side of the outer shell by a plurality of screws, and a bearing is installed at the center position of the outer side of the fixed end cover. A rotating shaft is inserted through the inner hole of the bearing. One end of the rotating shaft passes through the center hole of the mounting end cover and the sealing end cover and is connected to the output shaft of the motor for transmission. The other end of the rotating shaft extends through the side wall of the shell into the inner hole of the bearing, forming a support and rotational engagement.

[0018] By adopting the above technical solution, the bearing supports the other end of the shaft, reducing rotational friction and ensuring smooth operation of the shaft.

[0019] The present invention is further configured such that a limiting sleeve is provided at the center of the side wall of the limiting plate, the limiting sleeve is fitted onto the outside of the first sleeve, and sliders are provided at the upper and lower ends of the inner wall of the limiting sleeve. A sliding groove is provided at the corresponding position of the first sleeve, and the slider is slidably installed in the sliding groove.

[0020] By adopting the above technical solution, the sliding fit between the slider and the groove allows for the installation of a detachable limiting plate. This limiting plate can then limit and fix the blade after sliding installation, ensuring the stability of the blade installation.

[0021] The present invention is further configured such that a positioning screw is provided at one end of the outer side of the limiting sleeve, passing through the first sleeve and the rotating shaft and extending to the other end of the outer side; a screw hole is provided at the contact position between the first sleeve, the rotating shaft and the limiting sleeve and the positioning screw; a positioning nut is provided at the protruding end of the positioning screw; and the thread on the outer wall of the positioning screw is screwed and fixed with the thread on the inner wall of the positioning nut.

[0022] By adopting the above technical solution, after the positioning nut is screwed in and fixed, the positioning screw is prevented from loosening, thus maintaining the overall structural stability.

[0023] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0024] 1. This utility model achieves independent installation and disassembly of each blade through the sliding structure of the convex block and the convex groove. The blade disassembly and assembly design is decoupled from the overall structure to form an independent module. Therefore, when a single blade is damaged and needs cleaning and maintenance, it can be directly disassembled and replaced. Moreover, the sliding installation method ensures the accuracy of the blade installation position and avoids uneven unloading caused by assembly errors.

[0025] 2. This utility model uses the sliding cooperation between the slider on the inner wall of the limiting sleeve and the groove of the first sleeve to make the limiting plate closely fit the moving end of the blade, and provides preload force by combining the threaded engagement of the positioning screw and the positioning nut to limit the radial displacement of the blade, thereby ensuring the stability of the blade installation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a three-dimensional cross-sectional structural diagram of the shell of this utility model;

[0028] Figure 3 This is a front view of the shell structure of this utility model in cross section;

[0029] Figure 4This is an exploded three-dimensional structural diagram of flange No. 1 and flange No. 2 of this utility model;

[0030] Figure 5 This is a three-dimensional structural diagram of the blade of this utility model;

[0031] Figure 6 For the present utility model Figure 5 Enlarged 3D structural diagram at point A;

[0032] Figure 7 This is a three-dimensional cross-sectional view of the groove structure of this utility model.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Housing; 2. Inlet; 3. Outlet; 4. Sealing assembly; 401. Mounting end cap; 402. Sealing end cap; 403. Fixing screw; 404. Fixing nut; 5. Bracket; 6. Reducer; 7. Motor; 8. Shaft; 9. Sleeve No. 1; 10. Sleeve No. 2; 11. Blade; 12. Convex block; 13. Convex groove; 14. Limiting plate; 15. Limiting sleeve; 16. Slider; 17. Slide groove; 18. Positioning screw; 19. Screw hole; 20. Positioning nut; 21. Fixing end cap; 22. Bearing. Detailed Implementation

[0035] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0036] The components of the present invention embodiments described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0037] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0038] This utility model provides, for example Figure 1-7The star-shaped unloader for graphene preparation shown includes a housing 1, with an inlet 2 at the top and an outlet 3 at the bottom. Both the inlet 2 and outlet 3 are connected to the interior of the housing 1. A sealing assembly 4 is provided on one side of the housing 1. A rotating shaft 8 runs horizontally through the interior of the housing 1. A first sleeve 9 is fixedly installed on the outer side of the portion of the rotating shaft 8 inside the housing 1. A second sleeve 10 is fixedly installed on the outer side of the first sleeve 9. Multiple detachable blades 11 are evenly distributed around the outer wall of the second sleeve 10. A convex block 12 is provided at one end of the blade 11 near the second sleeve 10. A convex groove 13 is opened at the corresponding position of the second sleeve 10. The convex block 12 is slidably installed in the convex groove 13. One side of the multiple blades 11 is in close contact with a limiting plate 14.

[0039] In this embodiment, the separation design of the sealing end cap 402 and the mounting end cap 401 allows all blades 11 to be removed from the housing 1. The blades 11 can be quickly disassembled and assembled through the sliding engagement of the convex block 12 and the convex groove 13. Wear of a single blade 11 does not require replacement of all blades 11. Furthermore, the limiting plate 14 restricts its radial displacement, thus achieving the stability of the blades 11 after installation.

[0040] The sealing assembly 4 includes a mounting end cap 401 welded to one side of the outer side of the housing 1. A sealing end cap 402 is provided on one side of the mounting end cap 401. A sealing ring is provided on the contact surface between the sealing end cap 402 and the mounting end cap 401. The sealing assembly 4 also includes a fixing screw 403 and a matching fixing nut 404. The fixing screw 403 extends through the sealing end cap 402 and protrudes to the outside of the mounting end cap 401. The fixing nut 404 is fitted onto the protruding end of the fixing screw 403 and is fixed by screwing the threads on the outer wall of the fixing screw 403 and the threads on the inner wall of the fixing nut 404.

[0041] In this embodiment, the mounting end cap 401 and the sealing end cap 402 form a double seal through a sealing ring, which effectively prevents material leakage. It is especially suitable for high-pressure or dusty environments. Furthermore, the design of the fixing screw 403 and the fixing nut 404 facilitates the quick disassembly and assembly of the sealing assembly 4, reducing maintenance difficulty.

[0042] A bracket 5 is provided on one side of the sealing assembly 4, a reducer 6 is provided above the bracket 5, and a motor 7 is provided on one side of the reducer 6. The output end of the motor 7 is connected to the input end of the reducer 6. A fixed end cover 21 is installed on the other side of the housing 1 by multiple screws. A bearing 22 is installed at the center of the outside of the fixed end cover 21. A rotating shaft 8 is inserted through the inner hole of the bearing 22. One end of the rotating shaft 8 passes through the center hole of the mounting end cover 401 and the sealing end cover 402 and is connected to the output shaft of the motor 7. The other end of the rotating shaft 8 extends through the side wall of the housing 1 into the inner hole of the bearing 22, forming a support and rotational fit.

[0043] In this embodiment, the motor 7 provides high-speed, low-torque power, which is converted into low-speed, high-torque output by the reducer 6 to drive the rotating shaft 8 and blades 11 to rotate. This adapts to the low-speed rotation requirements of the unloader blades 11, ensuring the uniformity and continuity of material conveying. Furthermore, the bearing 22 of the fixed end cover 21 distributes the load on the rotating shaft 8, preventing bending deformation caused by unilateral force. The power source motor 7, reducer 6, and the inside of the material conveying area housing 1 are isolated by the sealing assembly 4 to prevent material dust from entering the transmission system and reduce the failure rate.

[0044] A limiting sleeve 15 is provided at the center of the side wall of the limiting plate 14. The limiting sleeve 15 is fitted onto the outside of the first sleeve 9. The upper and lower ends of the inner wall of the limiting sleeve 15 are provided with sliders 16. The first sleeve 9 is provided with a corresponding groove 17. The sliders 16 are slidably installed in the groove 17. A positioning screw 18 is provided at one end of the outer side of the limiting sleeve 15, passing through the first sleeve 9 and the rotating shaft 8 and extending to the other end of its outer side. A screw hole 19 is provided at the contact position between the first sleeve 9, the rotating shaft 8, the limiting sleeve 15 and the positioning screw 18. A positioning nut 20 is provided at the end of the positioning screw 18 that passes through. The thread on the outer wall of the positioning screw 18 is screwed into the thread on the inner wall of the positioning nut 20 for fixation.

[0045] In this embodiment, the limiting sleeve 15 can slide radially on the first sleeve 9 through the cooperation of the slider 16 and the slide groove 17, thereby realizing the disassembly and assembly of the limiting plate 14. The positioning screw 18 passes through the first sleeve 9 and the rotating shaft 8, and is fixed by screwing on the positioning nut 20, which axially locks the limiting sleeve 15 and the first sleeve 9 to prevent loosening during high-speed rotation. The threaded connection between the positioning screw 18 and the positioning nut 20 facilitates quick disassembly and assembly. The limiting sleeve 15 can be adjusted or replaced without disassembling the entire rotating shaft 8 or the first sleeve 9. Therefore, the separate design of the limiting sleeve 15 and the first sleeve 9 allows for separate maintenance of the blade 11.

[0046] Working principle of this utility model:

[0047] Refer to the instruction manual appendix Figure 1-7 When using this utility model, when it is necessary to disassemble the blade 11, first, turn off the motor 7, cut off the power supply, and ensure that the equipment is in a stopped state. Then, loosen the fixing nut 404 in sequence, remove the fixing screw 403, separate the sealing end cover 402 and the mounting end cover 401, and pull the rotating shaft 8 and the blade 11 out of the housing 1. Then, loosen the positioning nut 20, remove the positioning screw 18, release the axial locking between the limiting sleeve 15 and the first sleeve 9, slide the limiting sleeve 15 outward, so that the slider 16 is disengaged from the slide groove 17, remove the limiting sleeve 15 from the first sleeve 9, so that the limiting plate 14 can be pulled out to release its radial restriction on the blade 11. At this time, the blade 11 that needs to be cleaned, repaired and replaced can be slid outward, so that the convex block 12 slides along the convex groove 13 to the outer end of the second sleeve 10 and the blade 11 is completely pulled out. The worn blade 11 can be cleaned and repaired or a new blade 11 can be installed and replaced.

[0048] When it is necessary to install blade 11, first, align the convex block 12 of blade 11 with the convex groove 13 of sleeve 2 10, slide it inward to the designed position, then put the limiting sleeve 15 on the outside of sleeve 1 9, align the slider 16 with the slide groove 17, slide the limiting sleeve 15 inward until the slider 16 is fully embedded in the slide groove 17, then align the screw hole 19 and insert the positioning screw 18, which passes through sleeve 1 9 and shaft 8 and extends to the outside, tighten the positioning nut 20, and lock the limiting sleeve 15 and sleeve 1 9 axially by screwing them together.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A star-shaped unloader for graphene preparation, comprising a housing (1), characterized in that: A sealing assembly (4) is provided on one side of the housing (1). A rotating shaft (8) runs through the inside of the housing (1). A first sleeve (9) is fixedly installed on the outer side of the part of the rotating shaft (8) inside the housing (1). A second sleeve (10) is fixedly installed on the outer side of the first sleeve (9). Multiple detachable blades (11) are evenly distributed around the outer wall of the second sleeve (10). A convex block (12) is provided at one end of the blade (11) near the second sleeve (10). A convex groove (13) is opened at the corresponding position of the second sleeve (10). The convex block (12) is slidably installed in the convex groove (13). One side of the multiple blades (11) is closely attached to a limiting plate (14).

2. The star-shaped unloader for graphene preparation according to claim 1, characterized in that: The top of the housing (1) is provided with a feed inlet (2), and the bottom of the housing (1) is provided with a discharge outlet (3). Both the feed inlet (2) and the discharge outlet (3) are connected to the interior of the housing (1).

3. The star-shaped unloader for graphene preparation according to claim 1, characterized in that: The sealing assembly (4) includes a mounting end cap (401) welded to the outside of the housing (1), and a sealing end cap (402) is provided on one side of the mounting end cap (401). A sealing ring is provided on the contact surface between the sealing end cap (402) and the mounting end cap (401).

4. A star-shaped unloader for graphene preparation according to claim 3, characterized in that: The sealing assembly (4) further includes a fixing screw (403) and a matching fixing nut (404). The fixing screw (403) extends through the sealing end cap (402) and protrudes to the outside of the mounting end cap (401). The fixing nut (404) is fitted onto the protruding end of the fixing screw (403) and is fixed by screwing the threads on the outer wall of the fixing screw (403) and the threads on the inner wall of the fixing nut (404).

5. A star-shaped unloader for graphene preparation according to claim 4, characterized in that: A bracket (5) is provided on one side of the sealing assembly (4), a reducer (6) is provided above the bracket (5), and a motor (7) is provided on one side of the reducer (6). The output end of the motor (7) is connected to the input end of the reducer (6).

6. A star-shaped unloader for graphene preparation according to claim 3, characterized in that: A fixed end cap (21) is installed on the other side of the outer shell (1) by a plurality of screws. A bearing (22) is installed at the center of the outer side of the fixed end cap (21). A rotating shaft (8) is inserted through the inner hole of the bearing (22). One end of the rotating shaft (8) passes through the center hole of the mounting end cap (401) and the sealing end cap (402) and is connected to the output shaft of the motor (7) for transmission. The other end of the rotating shaft (8) extends through the side wall of the shell (1) into the inner hole of the bearing (22) to form a support and rotational fit.

7. A star-shaped unloader for graphene preparation according to claim 1, characterized in that: A limiting sleeve (15) is provided at the center of the side wall of the limiting plate (14). The limiting sleeve (15) is fitted onto the outside of the first sleeve (9). Slider blocks (16) are provided at the upper and lower ends of the inner wall of the limiting sleeve (15). A sliding groove (17) is provided at the corresponding position of the first sleeve (9). The slider (16) is slidably installed in the sliding groove (17).

8. A star-shaped unloader for graphene preparation according to claim 7, characterized in that: The limiting sleeve (15) has a positioning screw (18) at one end, which passes through the first sleeve (9) and the rotating shaft (8) and extends to the other end. The first sleeve (9), the rotating shaft (8) and the limiting sleeve (15) are provided with screw holes (19) at the contact positions with the positioning screw (18). The positioning screw (18) is provided with a positioning nut (20) at the protruding end. The thread on the outer wall of the positioning screw (18) is screwed and fixed with the thread on the inner wall of the positioning nut (20).

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