Flat plate type sealed centrifugal machine with built-in air cylinder

Abstract

The utility model provides a flat plate type built-in cylinder sealed centrifuge, which relates to the technical field of flat plate type sealed centrifuges, and comprises a bottom plate, one side of the top end of the bottom plate is fixedly connected with a driving assembly, and one end of the top end of the bottom plate far away from the driving assembly is fixedly connected with a barrel body assembly; a protection assembly; the protection assembly comprises an air bag sleeve fixedly connected to the inner wall of the bottom plate, a bearing sleeve is fixedly connected into the air bag sleeve, a shaft body is rotationally connected into the bearing sleeve, and a top end limiting ring is rotationally connected to the end, away from the bearing sleeve, of the outer side of the shaft body. A tension assembly; by means of the design, when the shaft body is affected by uneven centrifugal force, friction force caused by shaft body deviation is effectively relieved through the compression effect of the air bag sleeve, automatic adjustment and balance of the shaft body are achieved through the design of the air bag sleeve and the tension spring, shaft body deviation caused by the centrifugal force can be effectively reduced, and the service life of the shaft body is prolonged. And the stress concentration problem of the main shaft is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of flat-plate sealed centrifuges, and in particular to a flat-plate sealed centrifuge with an internal cylinder. Background Technology

[0002] The flat-plate centrifuge with built-in cylinder is an industrial centrifugal separation device. It uses a built-in cylinder to seal the centrifuge drum. This design is typically used to process flammable, explosive, toxic, or sterile materials. The flat-plate structure provides a robust support platform, while the built-in cylinder ensures that the drum remains sealed to the external environment during high-speed rotation, preventing material leakage or the entry of external contaminants. It also maintains stable internal pressure and is suitable for processes that require separation operations under specific pressures.

[0003] In existing technologies, centrifuges, as important equipment widely used in processes such as separation, purification, and concentration, have structural and performance stability that is crucial to their working efficiency and service life. This is especially true in the design of the centrifuge's spindle.

[0004] Currently, many traditional centrifuges use an external cylinder seal structure. Although this design can effectively prevent media leakage, at high speeds, the spindle will experience significant stress concentration due to the uneven distribution of centrifugal force. This stress concentration can cause localized damage to the shaft and affect the long-term stability of the equipment.

[0005] Therefore, this utility model provides a flat-plate type centrifuge with built-in cylinder sealing. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a flat-plate centrifuge with built-in cylinder sealing.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a flat-plate type built-in cylinder sealed centrifuge, comprising;

[0008] A base plate, wherein a drive assembly is fixedly connected to one side of the top of the base plate, and a barrel assembly is fixedly connected to the end of the top of the base plate away from the drive assembly;

[0009] Protective component; the protective component includes an airbag sleeve fixedly connected to the inner wall of the base plate, a bearing sleeve fixedly connected inside the airbag sleeve, a shaft rotatably connected inside the bearing sleeve, and a top limiting ring rotatably connected to the outer end of the shaft away from the bearing sleeve.

[0010] A tension assembly; the tension assembly includes a first rotating seat and a second rotating seat, with rotating connecting columns on the outer sides of the first rotating seat and the second rotating seat, and tension springs fixedly connected to the outer sides of the two connecting columns.

[0011] Preferably, the drive assembly includes a motor fixedly connected to the base plate, a drive wheel fixedly connected to the drive end of the motor, a driven wheel rotatably connected inside the base plate, and belts sleeved on the outer sides of the drive wheel and the driven wheel.

[0012] Preferably, the barrel assembly includes an outer centrifugal tank fixedly connected to one side of the top of the base plate, an inner centrifugal tank fixedly connected to the top of the shaft, and cylinder sealing covers provided at the top of the outer centrifugal tank and the inner centrifugal tank.

[0013] Preferably, the bottom end of the shaft is fixedly connected to the driven wheel.

[0014] Preferably, the end of the first rotating seat away from the second rotating seat is fixedly connected to the top limiting ring, and the other end of the second rotating seat away from the first rotating seat is fixedly connected to the bottom of the inner wall of the centrifuge outer tank.

[0015] Preferably, the top end of the top limiting ring is rotatably connected to the bottom end of the centrifuge inner tank.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] This invention utilizes a starting motor. The motor's rotation drives the active rotor to rotate, which in turn drives the driven rotor to rotate synchronously via a belt. The shaft connected to the driven rotor then stably rotates the centrifugal inner tank. To reduce centrifugal force, when the shaft experiences offset, the air bladder is compressed, and the internal gas transfers the force to the other side, pushing the bearing sleeve and shaft back. Simultaneously, the top limiting ring at the top of the shaft generates force under the tension of a spring. One side is compressed, while the spring on the other side pulls the top limiting ring back. This design effectively alleviates friction caused by shaft offset when the shaft is subjected to uneven centrifugal force. Furthermore, the air bladder and spring design achieve automatic adjustment and balance of the shaft, thus effectively reducing shaft offset caused by centrifugal force and avoiding stress concentration on the main shaft. Attached Figure Description

[0018] Figure 1 A perspective view of a flat-plate type centrifuge with built-in cylinder for use in this utility model;

[0019] Figure 2 A schematic diagram of the drive assembly structure of a flat-plate type built-in cylinder sealed centrifuge provided by this utility model;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0021] Figure 4 A schematic diagram of the protective component structure of a flat-plate type built-in cylinder sealed centrifuge provided by this utility model.

[0022] Legend:

[0023] 1. Base plate;

[0024] 2. Protective components; 21. Airbag sleeve; 22. Bearing sleeve; 23. Shaft body; 24. Top limit ring;

[0025] 3. Tension assembly; 31. Rotary seat one; 32. Rotary seat two; 33. Connecting column; 34. Tension spring;

[0026] 4. Drive assembly; 41. Motor; 42. Drive pulley; 43. Belt; 44. Driven pulley;

[0027] 5. Barrel assembly; 51. Centrifuge outer tank; 52. Centrifuge inner tank; 53. Cylinder sealing cover. Detailed Implementation

[0028] 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.

[0029] like Figure 1 , Figure 3 and Figure 4 As shown, this embodiment provides a technical solution: a flat-plate type built-in cylinder sealed centrifuge, comprising;

[0030] Base plate 1;

[0031] Protective component 2; Protective component 2 includes an airbag sleeve 21 fixedly connected to the inner wall of the base plate 1, a bearing sleeve 22 fixedly connected inside the airbag sleeve 21, a shaft 23 rotatably connected inside the bearing sleeve 22, and a top limiting ring 24 rotatably connected to the outer side of the shaft 23 away from the bearing sleeve 22.

[0032] The base plate 1 serves as the foundation structure of the entire centrifuge, providing support and fixation for other components. The air bladder sleeve 21 provides additional sealing and cushioning, reducing mechanical stress caused by temperature changes or pressure fluctuations and protecting internal components. The bearing sleeve 22, fixed inside the air bladder sleeve 21, supports and guides the rotation of the shaft 23. It contains bearings to reduce friction and wear during shaft 23 rotation. The shaft 23 is the rotating component connecting the drum and the drive system. It is supported by the bearing sleeve 22 and rotates within it, transmitting power. The top retaining ring 24 is located at the end of the shaft 23 away from the bearing sleeve 22, limiting the axial movement of the shaft 23 and ensuring that the shaft 23 maintains the correct position during rotation.

[0033] like Figure 1 , Figure 3 and Figure 4 As shown, tension assembly 3 includes a first rotating seat 31 and a second rotating seat 32. The end of the first rotating seat 31 away from the second rotating seat 32 is fixedly connected to the top limiting ring 24. The other end of the second rotating seat 32 away from the first rotating seat 31 is fixedly connected to the bottom of the inner wall of the centrifugal outer tank 51. Rotary connecting columns 33 are rotatably connected to the outer sides of the first rotating seat 31 and the second rotating seat 32. Tension springs 34 are fixedly connected to the outer sides of the two connecting columns 33.

[0034] Rotary seat 1 31 is fixedly connected to the top limiting ring 24, serving as an anchor point for the tension assembly 3, ensuring that the tension assembly 3 can correctly transmit force. Rotary seat 2 32 is fixedly connected to the bottom of the inner wall of the centrifuge outer tank 51, serving as another anchor point for the tension assembly 3. The design of the connecting column 33 allows relative movement between rotary seat 1 31 and rotary seat 2 32, which helps to absorb the offset caused by centrifugal force. The tension spring 34 can absorb the tension generated by the operation of the centrifuge and reduce the instantaneous impact caused by inertia.

[0035] like Figure 1 and Figure 2 As shown, a drive assembly 4 is fixedly connected to one side of the top of the base plate 1. The drive assembly 4 includes a motor 41 fixedly connected to the base plate 1. A drive wheel 42 is fixedly connected to the drive end of the motor 41. A driven wheel 44 is rotatably connected inside the base plate 1. The bottom end of the shaft 23 is fixedly connected to the driven wheel 44. A belt 43 is sleeved on the outer side of the drive wheel 42 and the driven wheel 44.

[0036] Motor 41 is the power source of drive assembly 4. The driving wheel 42 is fixedly connected to the driving end of motor 41 and directly receives the power of motor 41 and transmits the power to driven wheel 44. Driven wheel 44 receives the power from driving wheel 42 and transmits it to shaft 23, thereby driving the rotating parts of centrifuge. The belt 43 is designed to transmit the power of motor 41 from driving wheel 42 to driven wheel 44.

[0037] like Figure 1 - Figure 4 As shown, a barrel assembly 5 is fixedly connected to the top end of the base plate 1 away from the drive assembly 4. The barrel assembly 5 includes an outer centrifugal tank 51 fixedly connected to one side of the top of the base plate 1, an inner centrifugal tank 52 fixedly connected to the top of the shaft 23, and the top end of the top limiting ring 24 is rotatably connected to the bottom end of the inner centrifugal tank 52. A cylinder sealing cover plate 53 is provided at the top of the outer centrifugal tank 51 and the inner centrifugal tank 52.

[0038] The outer centrifuge tank 51 is used to contain materials and support the inner centrifuge tank 52, which is the main component for material separation. Under high-speed rotation, it uses centrifugal force to separate solids and liquids in the material. The cylinder sealing cover 53 is used to seal between the two tanks, preventing material leakage and the intrusion of external contaminants. The design of the cylinder sealing cover 53 provides excellent sealing performance.

[0039] Working principle:

[0040] like Figure 1 - Figure 4 As shown:

[0041] In use: By starting the motor 41, the rotation of the motor 41 drives the active wheel 42 to rotate. The active wheel 42 drives the driven wheel 44 to rotate synchronously via the belt 43. Then, the shaft 23 connected to the driven wheel 44 can stably drive the centrifugal inner tank 52 to rotate. When the shaft 23 drives the centrifugal inner tank 52 to rotate, in order to reduce the generation of centrifugal force, when the shaft 23 generates a deflection force, the air bladder sleeve 21 will be compressed. The gas inside will transfer the force to the other side, thereby pushing the bearing sleeve 22 and the shaft 23 back. At the top of the shaft 23, the top limiting ring 24 will be compressed on one side under the tension of the tension spring 34, while the tension spring 34 on the other side will be pulled back, thereby maintaining balance. Then, the shaft 23 drives the centrifugal inner tank 52 to rotate at high speed, using centrifugal force to separate the solid and liquid in the material. At the same time, the cylinder sealing cover 53 ensures the seal between the inner and outer tanks of the centrifuge, preventing material leakage and external contamination, and realizing a safe and efficient material separation process.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A flat-plate type centrifuge with built-in cylinder sealing, characterized in that, include; A base plate (1) is fixedly connected to a drive assembly (4) on one side of the top end of the base plate (1), and a barrel assembly (5) is fixedly connected to the end of the top end of the base plate (1) away from the drive assembly (4). Protective component (2); The protective component (2) includes an airbag sleeve (21) fixedly connected to the inner wall of the base plate (1), a bearing sleeve (22) fixedly connected inside the airbag sleeve (21), a shaft (23) rotatably connected inside the bearing sleeve (22), and a top limiting ring (24) rotatably connected to the outer side of the shaft (23) away from the bearing sleeve (22); Tension assembly (3); the tension assembly (3) includes a first rotating seat (31) and a second rotating seat (32), the outer sides of the first rotating seat (31) and the second rotating seat (32) are rotatably connected by a column (33), and the outer sides of the two connecting columns (33) are fixedly connected by a tension spring (34).

2. A flat-plate type centrifuge with built-in cylinder sealing according to claim 1, characterized in that: The drive assembly (4) includes a motor (41) fixedly connected to the base plate (1). The drive end of the motor (41) is fixedly connected to a drive wheel (42). A driven wheel (44) is rotatably connected inside the base plate (1). A belt (43) is sleeved on the outer side of the drive wheel (42) and the driven wheel (44).

3. A flat-plate type built-in cylinder sealed centrifuge according to claim 1, characterized in that: The barrel assembly (5) includes an outer centrifugal tank (51) fixedly connected to one side of the top of the bottom plate (1), and an inner centrifugal tank (52) fixedly connected to the top of the shaft (23). The tops of the outer centrifugal tank (51) and the inner centrifugal tank (52) are provided with cylinder sealing cover plates (53).

4. A flat-plate type built-in cylinder sealed centrifuge according to claim 1, characterized in that: The bottom end of the shaft (23) is fixedly connected to the driven wheel (44).

5. A flat-plate type internal cylinder sealed centrifuge according to claim 3, characterized in that: One end of the first rotating seat (31) away from the second rotating seat (32) is fixedly connected to the top limiting ring (24), and the other end of the second rotating seat (32) away from the first rotating seat (31) is fixedly connected to the bottom of the inner wall of the centrifugal outer tank (51).

6. A flat-plate type built-in cylinder sealed centrifuge according to claim 3, characterized in that: The top end of the top limiting ring (24) is rotatably connected to the bottom end of the centrifugal inner tank (52).

Images