High-air-tightness angle rotor easy to disassemble and assemble for centrifugal machine

Abstract

The utility model discloses a centrifugal machine angle rotor with high air tightness and easy to disassemble and assemble, which belongs to the technical field of centrifugal machines and comprises a rotor body, a rotor cover is assembled at the top end of the rotor body, and a central nut is assembled in the center of the interior of the rotor body. A shaft barrel base is assembled in the rotor body and located in the center nut, and a motor shaft is assembled in the shaft barrel base. The end part of the motor shaft penetrates through the shaft barrel seat and then is spirally matched with the central nut; a rotor cover nut is assembled at a center hole in the top end of the rotor cover; the rotor cover and the rotor body are connected through a clamping structure, the clamping structure comprises a clamping block installed on the inner wall of the rotor cover and a clamping groove formed in the side wall of the rotor body, and the clamping block is clamped in the clamping groove; according to the high-air-tightness easy-to-disassemble-and-assemble angle rotor of the centrifugal machine, the rotor body and the rotor cover are connected through the clamping structure, overall disassembly and assembly can be facilitated, and follow-up maintenance is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge technology, specifically to a centrifuge with high airtightness and easy disassembly and assembly angle rotor. Background Technology

[0002] A centrifuge is a machine that uses centrifugal force to separate the components of a mixture of liquids and solid particles or liquids. Centrifuges are mainly used to separate solid particles from liquids in suspensions, or to separate two immiscible liquids of different densities in emulsions (e.g., separating cream from milk). They can also be used to remove liquid from wet solids, such as in a washing machine to spin-dry wet clothes. Special high-speed tubular centrifuges can also separate gas mixtures of different densities, taking advantage of the different settling velocities of solid particles of different densities or sizes in liquids.

[0003] The existing centrifuge angle rotor technology still has some shortcomings. For example, when the motor shaft is engaged with the rotor body, it is not convenient to disassemble and assemble it, which affects the maintenance efficiency. Therefore, the existing technology needs to be improved. Utility Model Content

[0004] The purpose of this invention is to provide a centrifuge with a high airtightness and easy disassembly and assembly angle rotor, so as to solve the problem mentioned in the background art that the motor shaft is not easy to disassemble and assemble when it is in conjunction with the rotor body, which affects the maintenance efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a centrifuge high airtightness easy-to-disassemble angle rotor, including a rotor body, a rotor cover is assembled at the top of the rotor body, and a center nut is assembled at the center of the inside of the rotor body.

[0006] The rotor body is equipped with a shaft sleeve seat inside the central nut, and the motor shaft is assembled inside the shaft sleeve seat;

[0007] The end of the motor shaft passes through the shaft sleeve seat and is screwed into the center nut;

[0008] A rotor cover nut is fitted at the center hole at the top of the rotor cover;

[0009] The rotor cover and the rotor body are connected by a snap-fit ​​structure, which includes a snap-fit ​​block installed on the inner wall of the rotor cover and a snap-fit ​​groove opened on the side wall of the rotor body. The snap-fit ​​block snaps into the snap-fit ​​groove.

[0010] As a preferred embodiment of the present invention, a centrifuge with high airtightness and easy disassembly and assembly, the shaft cylinder seat includes a shaft seat a and a shaft seat b arranged opposite to each other. The inner walls of the shaft seat a and the shaft seat b are evenly and equidistantly provided with rotating cavities along their axes. The rotating cavities are equipped with ball bearings, which are fitted against the outer wall of the motor shaft.

[0011] As a preferred embodiment of the high airtightness and easy disassembly of the centrifuge rotor of this utility model, limit rings are fitted on both outer walls of the shaft seat a and shaft seat b.

[0012] As a preferred embodiment of the present invention, a centrifuge with high airtightness and easy disassembly and assembly, the outer walls on both sides of the card block are provided with inclined convex surfaces, and the inner walls on both sides of the card slot are provided with inclined concave surfaces.

[0013] As a preferred embodiment of the present invention, a high airtightness and easy-to-disassemble angle rotor for a centrifuge, the inner wall of the rotor cover nut is provided with a high airtightness sealing ring mounting groove a, and the inside of the rotor body is provided with a high airtightness sealing ring mounting groove b. The high airtightness sealing ring mounting groove a and the high airtightness sealing ring a are both provided, and the high airtightness sealing ring b is installed inside the high airtightness sealing ring mounting groove b.

[0014] As a preferred embodiment of the high airtightness and easy-to-disassemble angle rotor of the centrifuge according to the present invention, the high airtightness sealing rings a and b are provided with filling cavities, and filling components are installed inside the filling cavities.

[0015] As a preferred embodiment of the high airtightness and easy disassembly angle rotor of the centrifuge of this utility model, the central hole of the rotor body is also provided with an annular release groove to prevent the conical surface on the motor shaft and the conical surface of the rotor body from getting stuck.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the design of the centrifuge with a high airtightness and easy disassembly of the angle rotor is reasonable;

[0017] By setting a shaft sleeve seat at the rotor nut inside the rotor body, and passing the motor shaft through the shaft sleeve seat to mate with the rotor nut, the ball bearings in the shaft sleeve seat can prevent the accumulation of impurities in the mating cavity from affecting the mating of the rotor body, thereby improving the efficiency of the angle rotor. Furthermore, the rotor body and rotor cover are connected by a snap-fit ​​structure, which facilitates the assembly and disassembly of the whole unit and makes subsequent maintenance easier. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the high airtightness sealing ring of this utility model;

[0020] Figure 3 This is a schematic diagram of the snap-fit ​​structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the shaft cylinder seat of this utility model.

[0022] In the diagram: 1. Rotor body; 2. Motor shaft; 3. Rotor cover; 4. Filling cavity; 5. Center nut; 6. Rotor cover nut; 7. Shaft sleeve seat; 71. Shaft seat a; 72. Limiting ring; 73. Shaft seat b; 74. Rotating cavity; 75. Ball bearing; 8. High airtight seal ring mounting groove a; 9. High airtight seal ring a; 10. High airtight seal ring mounting groove b; 11. High airtight seal ring b; 12. Snap-fit ​​structure; 13. Snap block; 14. Snap groove; 15. Sloping convex surface; 16. Sloping concave surface. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4 This utility model provides a technical solution:

[0025] In this technical solution, a centrifuge high airtightness easily disassembled angle rotor includes a rotor body 1. The top of the rotor body 1 is equipped with a rotor cover 3, and a center nut 5 is equipped at the center of the rotor body 1. Inside the rotor body 1, inside the center nut 5, a shaft sleeve seat 7 is installed, and a motor shaft 2 is installed inside the shaft sleeve seat 7. The end of the motor shaft 2 passes through the shaft sleeve seat 7 and is screwed into the center nut 5. A rotor cover nut 6 is installed at the center hole at the top of the rotor cover 3. The rotor cover 3 and the rotor body 1 are connected by a snap-fit ​​structure 12. The snap-fit ​​structure 12 includes a snap block 13 installed on the inner wall of the rotor cover 3 and a snap groove 14 opened on the side wall of the rotor body 1. The snap block 13 snaps into the snap groove 14.

[0026] In this technical solution, the rotor body 1 is aligned with the motor shaft 2, and the central nut 5 is screwed into the motor shaft 8. When the motor shaft 2 is installed into the rotor body 1 and engages with the central nut 5, it first passes through the shaft sleeve seat 7. The shaft sleeve seat 7 is composed of two opposing shaft seats a71 and b72. The ball bearings 14 can roll within the rotating cavity 13, so that they rotate sequentially when the motor shaft 2 engages, avoiding the accumulation of impurities that affect the rotation efficiency. At the connection between the rotor cover 3 and the rotor body 1, a snap-fit ​​structure 12 is used for connection, replacing the traditional bolt connection. The connection is achieved by snapping the snap-fit ​​block 13 into the slot 14, which improves the disassembly and assembly between the two and facilitates maintenance.

[0027] In some technical solutions, the shaft cylinder seat 7 includes a shaft seat a71 and a shaft seat b73 arranged opposite to each other. The inner walls of the shaft seat a71 and the shaft seat b73 are evenly spaced along their axis with rotating cavities 74. The rotating cavities 74 are equipped with balls 75, which are fitted to the outer wall of the motor shaft 2. Limiting rings 72 are fitted on both sides of the outer walls of the shaft seat a71 and the shaft seat b73.

[0028] In this technical solution, the bearing seat a71 and bearing seat b73 are connected and fixed by the limiting ring 72.

[0029] In some technical solutions, the outer walls on both sides of the card block 13 are provided with inclined convex surfaces 15, and the inner walls on both sides of the card slot 14 are provided with inclined concave surfaces 16.

[0030] In this technical solution, the cooperation between the inclined convex surface 15 and the inclined concave surface 16 can improve the cooperation strength between the card block 13 and the card slot 14.

[0031] In some technical solutions, the inner wall of the rotor cover nut 6 is provided with a high airtight sealing ring mounting groove a8, the inside of the rotor body 1 is provided with a high airtight sealing ring mounting groove b10, the high airtight sealing ring mounting groove a8 and the high airtight sealing ring a9, and the high airtight sealing ring b11 is installed inside the high airtight sealing ring mounting groove b10.

[0032] In this technical solution, the high airtightness sealing ring a9 needs to be fitted into the annular ring mounting groove of the rotor cover nut 6, and the rotor cover nut 6 passes through the center hole of the rotor cover 3.

[0033] In some technical solutions, the high airtight sealing rings a9 and b11 have a filling cavity 17 inside, and a filler 4 is installed inside the filling cavity 17.

[0034] In this technical solution, the elasticity of the high airtightness sealing rings a9 and b11 can be improved by filling the cavity 4, thereby improving the sealing performance.

[0035] In some technical solutions, an annular release groove is also provided in the central hole of the rotor body 1 to prevent the conical surface on the motor shaft 2 and the conical surface of the rotor body from getting stuck.

[0036] 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.

[0037] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A high-airtightness, easily disassembled angle rotor for centrifuges, comprising a rotor body (1), characterized in that: The rotor body (1) is fitted with a rotor cover (3) at its top end, and a center nut (5) is fitted at the center of the inside of the rotor body (1). The rotor body (1) is equipped with a shaft sleeve seat (7) inside the central nut (5), and the motor shaft (2) is equipped inside the shaft sleeve seat (7). The end of the motor shaft (2) passes through the shaft sleeve seat (7) and is screwed into the center nut (5); The rotor cover (3) is fitted with a rotor cover nut (6) at the top center hole. The rotor cover (3) and the rotor body (1) are connected by a snap-fit ​​structure (12). The snap-fit ​​structure (12) includes a snap block (13) installed on the inner wall of the rotor cover (3) and a snap groove (14) opened on the side wall of the rotor body (1). The snap block (13) is snapped into the snap groove (14).

2. The centrifuge high airtightness and easily disassembled angle rotor according to claim 1, characterized in that, The shaft sleeve (7) includes a shaft seat a (71) and a shaft seat b (73) arranged opposite to each other. The inner walls of the shaft seat a (71) and the shaft seat b (73) are evenly spaced along their axis and have rotating cavities (74). The rotating cavities (74) are equipped with balls (75), which are fitted to the outer wall of the motor shaft (2).

3. A centrifuge high-airtightness, easily disassembled angle rotor according to claim 2, characterized in that, Limiting rings (72) are fitted on both outer walls of the bearing a (71) and bearing b (73).

4. A high-airtightness, easily disassembled angle rotor for a centrifuge according to claim 1, characterized in that, The outer walls of both sides of the card block (13) are provided with inclined convex surfaces (15), and the inner walls of both sides of the card slot (14) are provided with inclined concave surfaces (16).

5. A high-airtightness, easily disassembled angle rotor for a centrifuge according to claim 1, characterized in that, The inner wall of the rotor cap nut (6) is provided with a high airtight sealing ring mounting groove a (8), and the inside of the rotor body (1) is provided with a high airtight sealing ring mounting groove b (10). The high airtight sealing ring mounting groove a (8) and the high airtight sealing ring a (9) are provided. The high airtight sealing ring b (11) is installed inside the high airtight sealing ring mounting groove b (10).

6. A high-airtightness, easily disassembled angle rotor for a centrifuge according to claim 5, characterized in that, The high airtight sealing ring a (9) and the high airtight sealing ring b (11) have a filling cavity (17) inside, and a filler (4) is installed inside the filling cavity (17).

7. A high-airtightness, easily disassembled angle rotor for a centrifuge according to claim 1, characterized in that, The rotor body (1) is also provided with an annular release groove in the center hole to prevent the conical surface on the motor shaft (2) and the conical surface of the rotor body from getting stuck.

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