Bearing insulation structure of variable-frequency motor

Abstract

The utility model discloses a variable-frequency motor bearing insulation structure, which relates to the technical field of bearing insulation and comprises a bearing main body, an aluminum oxide ceramic coating is arranged on the outer wall of the bearing main body, the outer surface of the bearing main body is coated with the aluminum oxide ceramic coating, and the inner wall of an insulation sleeve slides on the outer wall of the aluminum oxide ceramic coating. The bottom end of the bearing main body abuts against the bottom end of the inner wall of the insulating sleeve, and the insulating plate is mounted above the insulating sleeve, so that the insulating block is fastened and mounted on the outer wall of the insulating sleeve, the outer side of the bearing main body is stably insulated, and subsequent workers regularly replace and mount the insulating sleeve; the outer wall of the insulating ring and the inner wall of the bearing body are installed in a matched mode, one end of the connecting plate abuts against one end of the bearing body and one end of the insulating ring, and meanwhile the outer wall of the clamping block fixed to the connecting plate and the inner wall of the clamping groove are installed in a clamped mode, so that the insulating ring is fixedly installed on the outer wall of the bearing body; and the insulation effect of the device on the bearing is further improved.

Description

Technical Field

[0001] This utility model relates to the field of bearing insulation technology, specifically to the insulation structure of variable frequency motor bearings. Background Technology

[0002] The variable frequency motor bearing insulation structure is a device installed on the outside of the bearing of a variable frequency motor to provide insulation.

[0003] Based on the above, the inventors have discovered that: Currently, there are many variable frequency motor bearing insulation structures on the market. However, in general variable frequency motor bearing insulation structures, the insulating coating is directly applied to the inner and outer sides of the bearing by the workers. However, after long-term use, the variable frequency motor is prone to wear on the insulation layer, which seriously affects the insulation effect of the insulation layer on the bearing and reduces the practicality of the device. Therefore, in view of this, the inventors have studied and improved the existing structure to provide a variable frequency motor bearing insulation structure, in order to achieve a more practical value. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] The present invention relates to an insulation structure for a variable frequency motor bearing, comprising a bearing body, an alumina ceramic coating on the outer wall of the bearing body, an insulation mechanism on the outer wall of the alumina ceramic coating, and an installation mechanism on the inner wall of the bearing body.

[0006] The insulation mechanism includes:

[0007] An insulating sleeve is disposed on the outer wall of the bearing body. The inner wall of the insulating sleeve slides against the outer wall of the alumina ceramic coating. An insulating plate is provided at the top of the insulating sleeve and is disposed at the top of the bearing body.

[0008] As a preferred embodiment of this utility model, four cylinders are fixed at the bottom of the insulating plate, and four circular grooves are opened at the top of the bearing body. The inner walls of the four circular grooves are matched with the outer walls of the cylinders.

[0009] As a preferred embodiment of this utility model, two insulating blocks are fixed at the bottom of the insulating plate, and both insulating blocks are disposed on the outer wall of the insulating sleeve.

[0010] As a preferred embodiment of this utility model, the dimensions of the vertical cross-sectional area of ​​the outer walls of the four cylinders are all matched with the dimensions of the vertical cross-sectional area of ​​the inner walls of the circular groove.

[0011] As a preferred embodiment of this utility model, the inner walls of both insulating blocks are fitted with inserts, and one side of each insert is matched with the inner wall of the insulating sleeve.

[0012] As a preferred embodiment of this utility model, the installation mechanism includes:

[0013] An insulating ring is disposed on the inner wall of the bearing body, and connecting plates are provided at both ends of the insulating ring.

[0014] As a preferred embodiment of this utility model, two locking blocks are fixed at one end of each of the two connecting plates, and two locking slots are opened at both ends of the bearing body. The inner walls of the four locking slots are matched with the outer walls of the locking blocks.

[0015] The beneficial effects of this utility model are:

[0016] 1. This solution involves applying an alumina ceramic coating to the outer surface of the bearing body. The inner wall of the insulating sleeve slides against the outer wall of the alumina ceramic coating, causing the bottom of the bearing body to abut against the bottom of the inner wall of the insulating sleeve. An insulating plate is then installed above the insulating sleeve, with its bottom end fitting against the top of the bearing body. Simultaneously, a cylinder fixed to the bottom of the insulating plate engages with the inner wall of a circular groove. The outer wall of an insert is then fitted against the inner wall of the insulating block until one side of the insert engages with the inner wall of the insulating sleeve, thus securing the insulating block firmly to the outer wall of the insulating sleeve. This provides stable insulation to the outside of the bearing body, preventing direct wear of the alumina ceramic coating over prolonged use. It also facilitates regular replacement and installation of the insulating sleeve by subsequent personnel, ensuring the device maintains normal operation.

[0017] 2. In this solution, the outer wall of the insulating ring is matched and installed with the inner wall of the bearing body. One end of the connecting plate abuts against one end of the bearing body and the insulating ring. At the same time, the outer wall of the clamping block fixed to the connecting plate engages with the inner wall of the clamping groove. Thus, the insulating ring is securely installed on the outer wall of the bearing body, further improving the insulation effect of the device on the bearing. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the insulation structure of the variable frequency motor bearing of this utility model;

[0020] Figure 2 This is a schematic diagram of the insulation mechanism of the variable frequency motor bearing insulation structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the cylindrical and groove separation structure of the variable frequency motor bearing insulation structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the installation mechanism for the bearing insulation structure of the variable frequency motor of this utility model;

[0023] Figure 5 This is a schematic diagram of the separation structure of the insert and insulating sleeve in the bearing insulation structure of the variable frequency motor of this utility model.

[0024] In the diagram: 1. Bearing body; 2. Alumina ceramic coating; 3. Insulation mechanism; 31. Insulation sleeve; 32. Insulation plate; 33. Cylinder; 34. Circular groove; 35. Insulation block; 4. Mounting mechanism; 41. Insulation ring; 42. Connecting plate; 43. Locking block; 44. Locking groove; 5. Insert post. Detailed Implementation

[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0026] Example: Figures 1-5 As shown, the variable frequency motor bearing insulation structure of this utility model includes a bearing body 1, an alumina ceramic coating 2 on the outer wall of the bearing body 1, an insulation mechanism 3 on the outer wall of the alumina ceramic coating 2, and an installation mechanism 4 on the inner wall of the bearing body 1.

[0027] Insulation mechanism 3 includes:

[0028] An insulating sleeve 31 is disposed on the outer wall of the bearing body 1. The inner wall of the insulating sleeve 31 slides against the outer wall of the alumina ceramic coating 2. An insulating plate 32 is provided at the top of the insulating sleeve 31. The insulating plate 32 is disposed at the top of the bearing body 1. Four cylinders 33 are fixed at the bottom of the insulating plate 32. Four circular grooves 34 are opened at the top of the bearing body 1. The inner walls of the four circular grooves 34 are matched with the outer walls of the cylinders 33. Two insulating blocks 35 are fixed at the bottom of the insulating plate 32. The two insulating blocks 35 are disposed on the outer wall of the insulating sleeve 31. The vertical cross-sectional area of ​​the outer wall of the four cylinders 33 is matched with the vertical cross-sectional area of ​​the inner wall of the circular grooves 34, so that the insulating blocks 35 are firmly installed on the outer wall of the insulating sleeve 31. Therefore, it provides stable insulation to the outside of the bearing body 1, avoids direct wear of the alumina ceramic coating 2 after long-term use, and facilitates the regular replacement and installation of the insulating sleeve 31 by the staff to ensure the normal operation of the device.

[0029] As attached Figure 1 and Figure 5 As shown, the inner walls of the two insulating blocks 35 are fitted with inserts 5, and one side of each insert 5 is matched with the inner wall of the insulating sleeve 31, so that the insulating sleeve 31 can be fastened and installed on the outside of the bearing body 1.

[0030] As attached Figure 1and Figure 4 As shown, the mounting mechanism 4 includes:

[0031] An insulating ring 41 is disposed on the inner wall of the bearing body 1. Both ends of the insulating ring 41 are provided with connecting plates 42. Two locking blocks 43 are fixed to one end of each connecting plate 42. Two locking grooves 44 are opened at both ends of the bearing body 1. The inner walls of the four locking grooves 44 are matched with the outer walls of the locking blocks 43, thus making the insulating ring 41 securely installed on the outer wall of the bearing body 1, further improving the insulation effect of the device on the bearing.

[0032] Working principle: In use, the alumina ceramic coating 2 is applied to the outer surface of the bearing body 1. The inner wall of the insulating sleeve 31 slides against the outer wall of the alumina ceramic coating 2, causing the bottom end of the bearing body 1 to abut against the bottom end of the inner wall of the insulating sleeve 31. The insulating plate 32 is installed above the insulating sleeve 31, so that the bottom end of the insulating plate 32 fits against the top end of the bearing body 1. At the same time, the cylinder 33 fixed at the bottom end of the insulating plate 32 engages with the inner wall of the circular groove 34. The outer wall of the insert 5 is fitted onto the inner wall of the insulating block 35 until one side of the insert 5 engages with the inner wall of the insulating sleeve 31, thereby making the insulating block 35 in the insulating... The outer wall of the insulating sleeve 31 is securely installed, thus providing stable insulation to the outer side of the bearing body 1. This avoids direct wear on the alumina ceramic coating 2 during prolonged use and facilitates regular replacement and installation of the insulating sleeve 31 by subsequent personnel, ensuring the normal operation of the device. The outer wall of the insulating ring 41 is matched and installed with the inner wall of the bearing body 1. One end of the connecting plate 42 abuts against one end of the bearing body 1 and the insulating ring 41. At the same time, the outer wall of the locking block 43, which is fixed to the connecting plate 42, engages with the inner wall of the locking groove 44, thus securing the insulating ring 41 to the outer wall of the bearing body 1 and further improving the insulation effect of the device on the bearing.

[0033] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A variable frequency motor bearing insulation structure, comprising a bearing body (1), wherein the outer wall of the bearing body (1) is provided with an alumina ceramic coating (2), characterized in that, The outer wall of the alumina ceramic coating (2) is provided with an insulating mechanism (3), and the inner wall of the bearing body (1) is provided with an installation mechanism (4); The insulation mechanism (3) includes: An insulating sleeve (31) is provided on the outer wall of the bearing body (1). The inner wall of the insulating sleeve (31) slides against the outer wall of the alumina ceramic coating (2). An insulating plate (32) is provided at the top of the insulating sleeve (31). The insulating plate (32) is provided at the top of the bearing body (1).

2. The variable frequency motor bearing insulation structure according to claim 1, characterized in that, The bottom end of the insulating plate (32) is fixed with four cylinders (33), and the top end of the bearing body (1) is provided with four circular grooves (34). The inner walls of the four circular grooves (34) are matched with the outer walls of the cylinders (33).

3. The variable frequency motor bearing insulation structure according to claim 1, characterized in that, Two insulating blocks (35) are fixed at the bottom of the insulating plate (32), and both insulating blocks (35) are disposed on the outer wall of the insulating sleeve (31).

4. The variable frequency motor bearing insulation structure according to claim 2, characterized in that, The dimensions of the vertical cross-sectional area of ​​the outer wall of the four cylinders (33) are all matched with the dimensions of the vertical cross-sectional area of ​​the inner wall of the circular groove (34).

5. The variable frequency motor bearing insulation structure according to claim 3, characterized in that, The inner walls of the two insulating blocks (35) are fitted with inserts (5), and one side of each insert (5) is matched with the inner wall of the insulating sleeve (31).

6. The variable frequency motor bearing insulation structure according to claim 1, characterized in that, The installation mechanism (4) includes: An insulating ring (41) is provided on the inner wall of the bearing body (1), and a connecting plate (42) is provided at both ends of the insulating ring (41).

7. The variable frequency motor bearing insulation structure according to claim 6, characterized in that, Two locking blocks (43) are fixed at one end of each of the two connecting plates (42), and two locking slots (44) are opened at both ends of the bearing body (1). The inner walls of the four locking slots (44) are matched with the outer walls of the locking blocks (43).

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