Ceramic bearing assembly applied to mixing equipment

Abstract

The utility model discloses a ceramic bearing component applied to mixing equipment, which comprises a ceramic bearing inner ring, a ceramic bearing outer ring, a stator component and a rotor component, the inner diameter of the ceramic bearing outer ring is in clearance fit with the outer diameter of the ceramic bearing inner ring, a positioning groove is arranged on the ceramic bearing outer ring, the stator component is embedded into the positioning groove, and the rotor component is embedded into the positioning groove. The inner ring of the ceramic bearing is fixedly connected with the rotor assembly, the inner ring of the ceramic bearing is tightly pressed on a stirring shaft of the mixing equipment, and the rotor assembly is connected with the stirring shaft at the same time, so that the rotor assembly is suitable for rotating relative to the stator assembly under the driving of the stirring shaft. Through the mutual cooperation of the stator assembly, the rotor assembly, the ceramic bearing inner ring and the ceramic bearing outer ring, the radial swing of the far end of the stirring shaft can be effectively reduced, a stable gap between the stator assembly and the rotor assembly is ensured, the particle size distribution is better, and almost no abrasive dust is generated in the operation process.

Description

Technical Field

[0001] The utility model relates to the technical field of stirring devices, in particular to a ceramic bearing assembly applied to mixing equipment. Background Art

[0002] Conventional emulsifying and shearing mixing equipment adopts a stator-rotor structure. The stator is fixed and the rotor rotates at high speed. There is a very small gap between the rotor and the stator, so that the material flowing through the stator and rotor is sheared at high speed, thus completing emulsification and shearing, with a uniform particle size distribution, good dispersibility, and a relatively stable emulsion formed.

[0003] The stirring shaft driving the rotation of the rotor is relatively long. To ensure the very small gap between the stator and rotor during the high-speed rotation of the rotor, support points need to be added at the bottom to reduce the radial swing of the stirring shaft and ensure the gap value between the stator and rotor. Since the bottom support points are basically inside the tank and will contact the material, conventional bearings cannot be used because they will contaminate the material in the tank. In response to this situation, many manufacturers adopt a support form of a PTFE bushing. Then, during high-speed rotation, abrasion debris will inevitably be generated between the PTFE bushing and the metal material, and the falling abrasion debris will directly fall into the material.

[0004] In view of this, it is necessary to design a ceramic bearing assembly applied to mixing equipment to solve the above problems. Summary of the Utility Model

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0006] Therefore, the utility model provides a ceramic bearing assembly applied to mixing equipment, which can ensure that there is no abrasion debris and no shedding during the whole operation process.

[0007] According to a ceramic bearing assembly applied to mixing equipment provided by the first aspect of the utility model, the ceramic bearing assembly includes a ceramic bearing inner ring, a ceramic bearing outer ring, a stator assembly and a rotor assembly. A positioning groove is formed on the ceramic bearing outer ring, the stator assembly is adapted to be embedded in the positioning groove, the ceramic bearing inner ring is fixedly connected with the rotor assembly, and the ceramic bearing inner ring is tightly pressed on the stirring shaft of the mixing equipment. The rotor assembly is connected with the stirring shaft, so that the rotor assembly is adapted to rotate relative to the stator assembly under the drive of the stirring shaft.

[0008] Further preferably, a first distance ring is provided at the upper end of the ceramic bearing inner ring, a second distance ring is provided at the lower end of the ceramic bearing inner ring, and the rotor assembly and the second distance ring are arranged on the same side of the ceramic bearing inner ring.

[0009] Preferably, the inner ring of the ceramic bearing is tightly pressed on the stirring shaft via a gland screw.

[0010] Further preferably, a sealing assembly is provided on the sealing ring of the outer ring of the ceramic bearing. The sealing assembly includes a first O-ring and a second O-ring. The first O-ring 5 is arranged between the stator assembly 3 and the outer ring 2 of the ceramic bearing, and the second O-ring 6 is arranged between the set screw 7 and the outer ring 2 of the ceramic bearing and is arranged along the axial direction of the stirring shaft 8.

[0011] Preferably, the stator assembly and the outer ring of the ceramic bearing are fixedly connected via a set screw. The head of the set screw is adapted to be screwed into the positioning groove, and a set distance is maintained between the head of the set screw and the inner side of the positioning groove.

[0012] Further preferably, the set distance between the head of the set screw and the inner side of the positioning groove is 0.2 mm to 0.5 mm.

[0013] Preferably, the inner diameter of the outer ring of the ceramic bearing and the outer diameter of the inner ring of the ceramic bearing are in clearance fit.

[0014] Further preferably, an arc-shaped groove is also provided at the inner hole of the outer ring of the ceramic bearing, and a liquid is adapted to flow through the arc-shaped groove for heat exchange with the ceramic friction pair.

[0015] The beneficial effects of the present utility model are as follows: Through the mutual cooperation between the above-mentioned stator assembly, rotor assembly, inner ring of the ceramic bearing, and outer ring of the ceramic bearing, the radial swing at the distal end of the stirring shaft can be effectively reduced, and the stable gap between the stator assembly and the rotor assembly can be ensured, making the particle size distribution better. Moreover, the bearing is made of ceramic material, with higher hardness and excellent wear resistance, and almost no wear debris is generated.

[0016] Other features and advantages of the present utility model will be described in the subsequent description, and will be partially obvious from the description, or will be understood by implementing the present utility model. The objectives and other advantages of the present utility model are achieved and obtained by the structures specifically pointed out in the description, claims, and drawings.

[0017] To make the above-mentioned objectives, features, and advantages of the present utility model more obvious and understandable, the following specific preferred embodiments are given, and in conjunction with the accompanying drawings, the detailed description is as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0019] Figure 1 It is a structural diagram of the ceramic bearing assembly of the present utility model applied to a mixing device;

[0020] Figure 2 Top view of the ceramic bearing outer ring of the ceramic bearing assembly applied to a mixing device of the present utility model;

[0021] Figure 3 Side view of the ceramic bearing outer ring of the ceramic bearing assembly applied to a mixing device of the present utility model;

[0022] Figure 4 Structural diagram of the ceramic bearing inner ring of the ceramic bearing assembly applied to a mixing device of the present utility model;

[0023] Figure 5 Cross-sectional view of the ceramic bearing assembly applied to a mixing device of the present utility model;

[0024] Figure 6 Assembly enlarged view between the positioning groove and the set screw of the ceramic bearing assembly applied to a mixing device of the present utility model.

[0025] Reference numerals:

[0026] 1, ceramic bearing inner ring; 2, ceramic bearing outer ring; 21, positioning groove; 3, stator assembly; 4, rotor assembly; 5, first O-ring; 6, second O-ring; 7, set screw; 8, stirring shaft; 9, arc-shaped groove. Detailed implementation manners

[0027] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model. In the description of the present utility model, it should be understood that unless otherwise specified, the meaning of "a plurality" is two or more.

[0028] See Figures 1 to 5 , a ceramic bearing assembly applied to a mixing device in a specific implementation manner of the present utility model. The ceramic bearing assembly includes a ceramic bearing inner ring 1, a ceramic bearing outer ring 2, a stator assembly 3, and a rotor assembly 4. The inner diameter of the ceramic bearing outer ring 2 is in clearance fit with the outer diameter of the ceramic bearing inner ring 1, thus ensuring the convenience of disassembly and assembly of the two. And a positioning groove 21 is provided on the ceramic bearing outer ring 2. The stator assembly 3 is adapted to be embedded in the positioning groove 21. And the ceramic bearing inner ring 1 is fixedly connected with the rotor assembly 4. The ceramic bearing inner ring 1 is tightly pressed on the stirring shaft 8 of the mixing device. The rotor assembly 4 is also connected with the stirring shaft 8 at the same time, so that the rotor assembly 4 is adapted to rotate relative to the stator assembly 3 under the drive of the stirring shaft 8. It should be noted that the ceramic bearing outer ring 2 is made of ceramic material, which has high hardness and excellent wear resistance, and there are no grinding chips and no shedding during operation.

[0029] Specifically, a first distance ring (not shown in the figure) is provided at the upper end of the inner ring 1 of the ceramic bearing, and a second distance ring (not shown in the figure) is provided at the lower end of the inner ring 1 of the ceramic bearing. Moreover, the rotor assembly 4 and the second distance ring are arranged on the same side of the inner ring 1 of the ceramic bearing. And the inner ring 1 of the ceramic bearing is tightly pressed on the stirring shaft 8 via a gland screw, so that the inner ring 1 of the ceramic bearing can rotate with the stirring shaft 8.

[0030] More specifically, the stator assembly 3 and the outer ring 2 of the ceramic bearing are fixedly connected via a set screw 7. The head of the set screw 7 is adapted to be screwed into the positioning groove 21, and a set spacing is maintained between the head of the screwed-in set screw 7 and the inner side of the positioning groove 21.

[0031] See Figure 6 , the set spacing between the head of the set screw 7 and the inner side of the positioning groove 21 is maintained between 0.2 mm and 0.5 mm. By controlling the distance between the head of the set screw 7 and the positioning groove 21 in the above manner, it is avoided that the outer ring 2 of the ceramic bearing is directly damaged during the tightening process of the set screw 7 (since the outer ring 2 of the ceramic bearing is made of ceramic material and cannot withstand sharp impact loads).

[0032] In addition, a sealing assembly is further provided on the outer ring 2 of the ceramic bearing. The sealing assembly includes a first O-ring 5 and a second O-ring 6. The first O-ring 5 is arranged between the stator assembly 3 and the outer ring 2 of the ceramic bearing. The second O-ring 6 is arranged along the axial direction of the stirring shaft 8 and is arranged between the set screw 7 and the stator assembly 3. Through the combination of the first O-ring 5 and the second O-ring 6, the sealing performance of the sealing end of the device is effectively guaranteed, and the arrangement of the sealing assembly is convenient for cleaning and not prone to bacteria growth.

[0033] See Figure 2 , in addition, an arc-shaped groove 9 is further formed at the inner hole of the outer ring 2 of the ceramic bearing. A liquid is adapted to flow through the arc-shaped groove 9 to generate heat exchange with the ceramic friction pair. That is, through the design of the arc-shaped groove 9, the liquid can flow through here, and the flowing liquid can take away the heat here, so as to effectively take away the heat of the friction pair in time to avoid the occurrence of adverse conditions such as expansion damage and collapse due to excessive heat of the friction pair.

[0034] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0035] Based on the ideal embodiments of the present utility model as inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A ceramic bearing assembly applied to a mixing device, characterized in that, The ceramic bearing assembly includes a ceramic bearing inner ring (1), a ceramic bearing outer ring (2), a stator assembly (3) and a rotor assembly (4). A positioning groove (21) is formed in the ceramic bearing outer ring (2). The stator assembly (3) is adapted to be embedded in the positioning groove (21). The ceramic bearing inner ring (1) is fixedly connected to the rotor assembly (4), and the ceramic bearing inner ring (1) is tightly pressed on the stirring shaft (8) of the mixing device. The rotor assembly (4) is connected to the stirring shaft (8) so that the rotor assembly (4) is adapted to rotate relative to the stator assembly (3) driven by the stirring shaft (8).

2. The ceramic bearing assembly applied to the mixing device according to claim 1, characterized in that A first distance ring is provided at the upper end of the ceramic bearing inner ring (1), and a second distance ring is provided at the lower end of the ceramic bearing inner ring (1), and the rotor assembly (4) and the second distance ring are arranged on the same side of the ceramic bearing inner ring (1).

3. The ceramic bearing assembly applied to the mixing device according to claim 2, wherein The ceramic bearing inner ring (1) is tightly pressed on the stirring shaft (8) via a gland screw.

4. The ceramic bearing assembly applied to the mixing device according to claim 2, wherein, The stator assembly (3) and the ceramic bearing outer ring (2) are fixedly connected via a set screw (7). The head of the set screw (7) is adapted to be screwed into the positioning groove (21), and a set spacing is maintained between the head of the set screw (7) and the inner side of the positioning groove (21).

5. The ceramic bearing assembly applied to the mixing device according to claim 4, characterized in that, A sealing assembly is provided on the ceramic bearing outer ring (2). The sealing assembly includes a first O-ring (5) and a second O-ring (6). The first O-ring (5) is arranged between the stator assembly (3) and the ceramic bearing outer ring (2). The second O-ring (6) is arranged between the set screw (7) and the ceramic bearing outer ring (2) and is arranged along the axial direction of the stirring shaft (8).

6. The ceramic bearing assembly applied to the mixing device according to claim 5, characterized in that, The set spacing between the head of the set screw (7) and the inner side of the positioning groove (21) is 0.2 mm to 0.5 mm.

7. The ceramic bearing assembly applied to the mixing device according to claim 6, wherein, The inner diameter of the ceramic bearing outer ring (2) and the outer diameter of the ceramic bearing inner ring (1) are in clearance fit.

8. The ceramic bearing assembly applied to the mixing device according to claim 7, characterized in that, An arc-shaped groove (9) is further formed at the inner hole of the ceramic bearing outer ring (2). Liquid is adapted to flow through the arc-shaped groove (9) for heat exchange with the ceramic friction pair.

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