Sealing throwing ring structure for positions of casing and main shaft of centrifugal machine

Abstract

The utility model relates to the technical field of sealing structures, and discloses a centrifugal machine shell and main shaft position sealing throwing ring structure which comprises a main shaft body, a centrifugal machine shell is arranged on the outer side of the main shaft body, and a sealing throwing ring assembly is arranged on the side edge of the connecting position of the main shaft body and the centrifugal machine shell. The sealing throwing ring assembly is arranged between the main shaft body and the centrifugal machine shell, the sealing throwing ring assembly is formed by combining the annular disc and the six connecting blades arranged on the annular disc, the annular disc is connected to the main shaft body in a welded mode, and the connecting blades arranged on the annular disc are also connected in a welded mode. According to the centrifugal machine, the sealing throwing ring assembly is arranged in the centrifugal machine shell, then the inside and outside of the centrifugal machine shell can be effectively isolated, liquid and solid materials in the centrifugal machine shell are prevented from leaking out of the centrifugal machine shell, connecting blades in the sealing throwing ring assembly can synchronously rotate along with rotation of the annular disc, the material throwing effect of the sealing throwing ring assembly is further enhanced, and the sealing enhancing effect can be achieved; and leakage of materials is effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sealing structure technical field, concretely is a centrifuge casing and main shaft position sealing fling ring structure. BACKGROUND

[0002] The centrifuge utilizes the centrifugal force of the inner rotating barrel of high speed operation to separate solid and liquid, the inner rotating barrel is rotatably arranged in the outer barrel, the bottom center of the inner rotating barrel is fixedly connected with the rotating main shaft, in order to facilitate connection, the inner cavity bottom of the inner rotating barrel is provided with a sealing fling ring structure at the rotating main shaft, thereby preventing the liquid in the centrifuge from leaking to the outside of the casing.

[0003] The existing conventional centrifuge fling ring structure is a complete annular disc piece group welding, or screw connection, or integral machining with the main shaft, thereby the conventional sealing fling ring has a slight deficiency in preventing material leakage, and it is difficult to guarantee effective sealing effect, and there are certain defects in use. UTILITY MODEL CONTENTS

[0004] In view of the defects of the prior art, the utility model provides a centrifuge casing and main shaft position sealing fling ring structure, which solves the problems that the existing conventional centrifuge fling ring structure is a complete annular disc piece group welding, or screw connection, or integral machining with the main shaft, thereby the conventional sealing fling ring has a slight deficiency in preventing material leakage, and it is difficult to guarantee effective sealing effect, and there are certain defects in use.

[0005] The utility model provides the following technical scheme: a centrifuge casing and main shaft position sealing fling ring structure, including main shaft body, centrifuge casing is provided on the outer side of main shaft body, the side of the junction of main shaft body and centrifuge casing is provided with sealing fling ring assembly.

[0006] The sealing fling ring assembly comprises an annular disc, the annular disc is sleeved on the main shaft body, the annular disc is provided with a blade insertion hole, and a connecting blade is inserted into the blade insertion hole.

[0007] Preferably, the side of the centrifuge casing is provided with a protective cover, and the protective cover covers the outer side of the sealing fling ring assembly.

[0008] Preferably, the sealing fling ring assembly and the main shaft body are connected through welding.

[0009] Preferably, the blade insertion hole is provided with six, and the six blade insertion holes are uniformly arranged on the annular disc.

[0010] The scheme can make the connecting blade rotate with the annular disc, enhance the material throwing effect of the sealing fling ring assembly, strengthen the sealing effect, and prevent material leakage.

[0011] Preferably, the connecting blade is in the shape of h, and the connecting blade is inserted into the blade insertion hole in a chimeric manner.

[0012] The connecting blade can be more conveniently inserted into the blade insertion hole.

[0013] Preferably, the connecting blade is inserted into the blade insertion hole and is connected by welding.

[0014] The connecting between the blade insertion hole and the connecting blade is more firm.

[0015] Compared with the prior art, the centrifuge casing and main shaft position sealing swing ring structure has the following beneficial effects:

[0016] (1) The sealing swing ring assembly is arranged between the main shaft body and the centrifuge casing, the sealing swing ring assembly is composed of an annular disc and six connecting blades arranged thereon, the annular disc is connected to the main shaft body by welding, and the connecting blades arranged on the annular disc are also connected by welding, thereby effectively isolating the inside and outside of the centrifuge casing, preventing liquid and solid materials in the centrifuge casing from leaking to the outside of the centrifuge casing, and when the sealing swing ring assembly rotates with the main shaft body, the connecting blades in the sealing swing ring assembly can rotate synchronously with the annular disc, further enhancing the material throwing effect of the sealing swing ring assembly, and effectively preventing material leakage. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural section schematic view of the utility model;

[0018] Figure 2 It is a structural section schematic view of the utility model; Figure 1 It is a structural schematic view of the sealing swing ring assembly;

[0019] Figure 3 It is a structural section schematic view of the utility model; Figure 2 It is an enlarged view of the structure of the annular disc;

[0020] Figure 4 It is an enlarged view of the structure of the connecting blade; Figure 2 It is an enlarged view of the structure of the connecting blade;

[0021] Figure 5 It is an enlarged view of the structure of the connecting blade; Figure 3 It is a structural side view schematic of the annular disc.

[0022] In the figure: 1, main shaft body; 2, sealing swing ring assembly; 3, centrifuge casing;

[0023] 201, annular disc; 202, blade insertion hole; 203, connecting blade. DETAILED DESCRIPTION

[0024] Please refer to Figures 1-5 ,

[0025] Embodiment one: a centrifuge shell and main shaft position sealing ring structure, comprising a main shaft body 1, the outer side of the main shaft body 1 is provided with a centrifuge shell 3, the side of the connection between the main shaft body 1 and the centrifuge shell 3 is provided with a sealing ring assembly 2;

[0026] The sealing ring assembly 2 comprises an annular disc 201, the annular disc 201 is sleeved on the main shaft body 1, the annular disc 201 is provided with a blade insertion hole 202, and the blade insertion hole 202 is inserted with a connecting blade 203.

[0027] The side of the centrifuge shell 3 is provided with a shroud, and the shroud is arranged outside the sealing ring assembly 2.

[0028] The sealing ring assembly 2 and the main shaft body 1 are connected by welding.

[0029] Embodiment two: the difference between this embodiment and embodiment one is that the blade insertion hole 202 is provided with six, and the six blade insertion holes 202 are uniformly arranged on the annular disc 201.

[0030] So that the connecting blade 203 can rotate with the annular disc 201, enhance the material throwing effect of the sealing ring assembly 2, can play the role of strengthening the sealing effect, prevent material leakage.

[0031] Embodiment three: the difference between this embodiment and embodiment one is that the connecting blade 203 is h-shaped, and the connecting blade 203 is embedded and inserted into the blade insertion hole 202.

[0032] So that the connecting blade 203 is more convenient to insert into the blade insertion hole 202.

[0033] Embodiment four: the difference between this embodiment and embodiment one is that the connecting blade 203 is inserted into the blade insertion hole 202 and connected by welding.

[0034] So that the connection between the blade insertion hole 202 and the connecting blade 203 is more firm.

[0035] In this embodiment, because the existing conventional centrifuge ring structure is a complete annular disc piece welding, or screw connection, or integrated with the main shaft, so that the conventional sealing ring has a slight defect in preventing material leakage, and it is difficult to ensure effective sealing effect, and there is a certain defect in use.

[0036] In summary, in the specific implementation, the sealing swing ring assembly 2 is arranged on the main shaft body 1, and the sealing swing ring assembly 2 is arranged at the side of the main shaft body 1 and the centrifuge shell 3, and the sealing swing ring assembly 2 can seal the connection between the main shaft body 1 and the centrifuge shell 3.

[0037] The sealing swing ring assembly 2 is composed of the annular disc 201 and the six connecting blades 203 uniformly inserted into the annular disc 201. Compared with the traditional swing ring which is a complete annular disc and directly connected with the main shaft body 1 by resistance welding or integrally formed with the main shaft body 1, the sealing swing ring assembly 2 has stronger sealing performance. The sealing swing ring assembly 2 can effectively isolate the inside and outside of the centrifuge shell 3, prevent the liquid and solid materials in the centrifuge shell 3 from leaking outside the centrifuge shell 3, and prevent the leakage of the materials. When the sealing swing ring assembly 2 rotates with the main shaft body 1, the connecting blades 203 in the sealing swing ring assembly 2 can rotate synchronously with the annular disc 201, further strengthen the material throwing effect of the sealing swing ring assembly 2, and strengthen the sealing effect, effectively prevent the leakage of the materials.

Claims

1. A centrifuge casing and spindle position seal throw ring structure comprising a spindle body (1) characterised in that: The centrifugal machine shell (3) is arranged on the outer side of the main shaft body (1), and the side of the connection between the main shaft body (1) and the centrifugal machine shell (3) is provided with a sealing swing ring assembly (2); The sealing swing ring assembly (2) comprises an annular disc (201), the annular disc (201) is sleeved on the main shaft body (1), and the annular disc (201) is provided with blade insertion holes (202), and the blade insertion holes (202) are all inserted with connecting blades (203).

2. A centrifuge casing and spindle position seal throw ring structure according to claim 1, wherein: The side of the centrifugal machine shell (3) is provided with a shield, and the shield covers the outer side of the sealing swing ring assembly (2).

3. A centrifuge casing and spindle position seal throw ring structure according to claim 2, wherein: The sealing swing ring assembly (2) and the main shaft body (1) are connected by welding.

4. A centrifuge casing and spindle location seal throw ring structure according to claim 3 wherein: The blade insertion holes (202) are six, and the six blade insertion holes (202) are uniformly arranged on the annular disc (201).

5. A centrifuge casing and spindle location seal throw ring structure according to claim 4 wherein: The connecting blade (203) is h-shaped, and the connecting blade (203) is embedded and inserted into the blade insertion hole (202).

6. A centrifuge housing and spindle position seal throw ring structure according to claim 5 wherein: The connecting blade (203) is inserted into the blade insertion hole (202) and connected by welding.

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