CN217401249U

CN217401249U - Lubricating oil cavity mechanism of centrifugal fan

Info

Publication number: CN217401249U
Application number: CN202122594057.7U
Authority: CN
Inventors: 卢海洋
Original assignee: Ningbo Donglong Electronic Technology Co ltd
Current assignee: Ningbo Donglong Electronic Technology Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-09-09
Anticipated expiration: 2031-10-27

Abstract

The utility model relates to a centrifugal fan's lubricating oil pocket mechanism, including wind wheel and support, the wind wheel is installed on the mount pad of support through the axis of rotation, and mount pad and support integrated into one piece, install the bearing in the mount pad, the axis of rotation is installed on the bearing, be formed with a cavity that is used for storing lubricating oil between the below of bearing and the below of mount pad, the absorption subassembly that is used for adsorbing lubricating oil is installed to the top of bearing, and the absorption subassembly imbeds in the top of mount pad, and compress tightly fixedly between absorption subassembly and the mount pad through the installation of wind wheel; the utility model has the advantages that: the rotating shaft and the bearing are kept in a lubricating environment through the adsorption component by adding a proper amount of lubricating oil in the cavity, so that the requirement of lower noise of the fan is met, and the service life is greatly prolonged.

Description

Lubricating oil cavity mechanism of centrifugal fan

Technical Field

The utility model belongs to the technical field of the fan, especially, relate to a centrifugal fan's lubricating oil cavity mechanism.

Background

The centrifugal fan accelerates gas by utilizing a wind wheel rotating at a high speed according to the principle that kinetic energy is converted into potential energy, and then decelerates and changes the flow direction so as to convert the kinetic energy into the potential energy (pressure); the wind wheel rotates at a high speed in the conversion process, so that the friction coefficient between a rotating shaft connected with the wind wheel and the bearing is larger, and according to the prior art, if lubricating oil is added at the position irregularly and timely, the noise of the fan in the operation process is too large, the service life is greatly reduced, and the performance of the fan is not stable enough.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of prior art existence, and provide a centrifugal fan's lubricating oil pocket mechanism, can keep axis of rotation and bearing in a lubricated environment all the time, prevent the too big problem of fan noise at the operation in-process.

The utility model aims at accomplishing through following technical scheme, this kind of centrifugal fan's lubricating oil pocket mechanism includes wind wheel and support, the wind wheel passes through the axis of rotation and installs on the mount pad of support, just the mount pad with support integrated into one piece, install the bearing in the mount pad, the axis of rotation is installed on the bearing, the below of bearing with be formed with a cavity that is used for storing lubricating oil between the below of mount pad, the absorption subassembly that is used for adsorbing lubricating oil is installed to the top of bearing, just the absorption subassembly embedding is in the top of mount pad to the installation through the wind wheel will the absorption subassembly with compress tightly fixedly between the mount pad.

The utility model has the advantages that: the rotating shaft and the bearing are kept in a lubricating environment through the adsorption component by adding a proper amount of lubricating oil in the cavity, so that the requirement of lower noise of the fan is met, and the service life is greatly prolonged.

Preferably, the adsorption assembly comprises a felt pad and a cover plate, the felt pad is sleeved on the rotating shaft and embedded in the mounting seat and abutted against the upper end face of the bearing, the cover plate is sleeved on the rotating shaft and embedded on the edge of the mounting seat, and the cover plate is positioned above the felt pad and abutted against the felt pad; the felt pad is used for storing lubricating grease by utilizing the oil absorption performance of the felt pad, so that the rotating shaft and the bearing are always kept with lubricating oil, the lubricating oil is prevented from flowing out by pressing the rotating shaft and the bearing through the cover plate, and a relatively closed oil supply circulating system can be formed.

Preferably, a boss is arranged on one surface, facing the felt pad, of the cover plate, a circle of groove is formed between the boss and the side wall of the cover plate, and the groove is abutted to the upper end surface of the mounting seat; can make better spacing between apron and the mount pad like this to can further prevent that lubricating oil from flowing out to outside from the apron.

Preferably, the other side of the cover plate is provided with a concave platform for embedding the end face of the wind wheel; therefore, after the wind wheel is installed and fixed, the cover plate can be pressed and fixed on the installation seat.

Preferably, the upper end surface of the bearing is provided with a plurality of oil channel grooves which penetrate through the end surface of the inner wall of the bearing and the end surface of the outer wall of the bearing; the oil channel grooves are distributed at equal intervals around the shaft core of the bearing; thus, the lubricating oil in the felt pad can flow into the gap between the bearing and the mounting seat and the gap between the bearing and the rotating shaft through the oil channel groove.

Preferably, the end surface of the inner wall of the bearing and the upper end surface of the inner wall of the bearing are formed in a transition mode through inclined surfaces, and the end surface of the outer wall of the bearing and the upper end surface of the outer wall of the bearing are formed in a transition mode through arc surfaces; therefore, the lubricating oil in the felt pad can smoothly flow into the clearance between the bearing and the mounting seat and the clearance between the bearing and the rotating shaft, and the processing and the forming are more convenient.

Preferably, the lower end surface of the bearing is limited and fixed with the rotating shaft through a clamping ring, and the clamping ring is clamped on the rotating shaft; the axial play of the bearing on the rotating shaft can be prevented.

Preferably, a wear-resistant gasket is arranged between the clamping ring and the end face of the bearing; the friction between the end face of the bearing and the clamping ring can be greatly reduced, and the service life between the bearing and the clamping ring can be further prolonged.

Drawings

Fig. 1 is a schematic view of a front cross-sectional structure of a lubricating oil cavity mechanism of the present invention.

Fig. 2 is a schematic front perspective view of the cover plate of the present invention.

Fig. 3 is a schematic view of a reverse side three-dimensional structure of the cover plate of the present invention.

Fig. 4 is a schematic view of the three-dimensional structure of the bearing of the present invention.

The reference numbers in the drawings are respectively: 1. a wind wheel; 2. a support; 3. a rotating shaft; 4. a bearing; 5. a cavity; 6. an adsorption component; 7. a snap ring; 8. a wear resistant pad; 21. a mounting base; 41. an oil channel groove; 42. an inclined surface; 43. a circular arc surface; 61. a felt pad; 62. a cover plate; 62-1, a boss; 62-2, a groove; 62-3 and a concave platform.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings: as shown in the attached drawing 1, the utility model discloses a wind wheel 1 and support 2, wind wheel 1 installs on the mount pad 21 of support 2 through axis of rotation 3, and mount pad 21 and support 2 integrated into one piece, install bearing 4 in the mount pad 21, axis of rotation 3 installs on bearing 4, be formed with a cavity 5 that is used for storing lubricating oil between the below of bearing 4 and the below of mount pad 21, install absorption assembly 6 that is used for adsorbing lubricating oil above the bearing 4, and absorption assembly 6 imbeds in the top of mount pad 21, and compress tightly fixedly between absorption assembly 6 and mount pad 21 through the installation of wind wheel 1; the adsorption component 6 comprises a felt pad 61 and a cover plate 62, the felt pad 61 is sleeved on the rotating shaft 3 and embedded in the mounting seat 21 and is abutted against the upper end face of the bearing 4, the cover plate 62 is sleeved on the rotating shaft 3 and embedded on the edge of the mounting seat 21, and the cover plate 62 is positioned above the felt pad 61 and is abutted against each other; the lower end surface of the bearing 4 is limited and fixed with the rotating shaft 3 through a clamping ring 7, and the clamping ring 7 is clamped on the rotating shaft 3; and a wear-resistant gasket 8 is arranged between the snap ring 7 and the end surface of the bearing 4.

The utility model discloses an installation does: firstly, adding a proper amount of lubricating oil into an installation seat 21 of a support 2, then sequentially placing a wind wheel 1, a cover plate 62, a felt pad 61 and a bearing 4 on a rotating shaft 3 and clamping and fixing the rotating shaft 3 through a clamping ring 7, and finally placing the rotating shaft 3 into the installation seat 21, wherein the cover plate 62 is abutted against the upper end surface of the installation seat 21; the rotating shaft and the bearing are kept in a lubricating environment through the adsorption component by adding a proper amount of lubricating oil in the cavity, so that the requirement of lower noise of the fan is met, and the service life is greatly prolonged.

In order to better limit the position between the cover plate and the mounting seat and further prevent the lubricating oil from flowing out of the cover plate, as shown in fig. 2 and 3, an annular boss 62-1 is arranged on one surface of the cover plate 62 facing the felt pad 61, a circle of groove 62-2 is formed between the boss 62-1 and the side wall of the cover plate 62, and the groove 62-2 is abutted against the upper end surface of the mounting seat 21; the other side of the cover plate 62 is provided with a concave platform 62-3 for embedding the end face of the wind wheel.

In order to make the lubricating oil in the felt pad smoothly flow into the gap between the bearing and the mounting seat and the gap between the bearing and the rotating shaft, as shown in fig. 4, the upper end surface of the bearing 4 is provided with a plurality of oil duct grooves 41 penetrating through the end surfaces of the inner wall and the outer wall of the bearing; the oil duct grooves 41 are distributed around the shaft core of the bearing 4 at equal intervals, and generally six oil duct grooves 41 are provided, and the cross sections of the oil duct grooves are U-shaped; the end face of the inner wall of the bearing 4 and the upper end face are formed in a transition mode through the inclined face 42, the end face of the outer wall of the bearing 4 and the upper end face are formed in a transition mode through the arc face 43, and the bearing is an oil-retaining bearing.

The present invention is not limited to the above embodiments, and any change is made on the shape or material composition, and all the structural designs provided by the present invention are all the deformation of the present invention, which should be considered within the protection scope of the present invention.

Claims

1. The utility model provides a centrifugal fan's lubricating oil pocket mechanism, includes wind wheel (1) and support (2), install through axis of rotation (3) wind wheel (1) on mount pad (21) of support (2), just mount pad (21) with support (2) integrated into one piece, install bearing (4) in mount pad (21), axis of rotation (3) are installed on bearing (4), its characterized in that: the bearing structure is characterized in that a cavity (5) used for storing lubricating oil is formed between the lower portion of the bearing (4) and the lower portion of the mounting seat (21), an adsorption component (6) used for adsorbing the lubricating oil is installed above the bearing (4), the adsorption component (6) is embedded into the upper portion of the mounting seat (21), and the adsorption component (6) is fixedly compressed between the mounting seats (21) through the installation of the wind wheel (1).

2. The lubricating oil cavity mechanism of the centrifugal fan as claimed in claim 1, wherein: adsorption component (6) include felt pad (61) and apron (62), felt pad (61) cover is in rotation axis (3) go up and the embedding and be in mount pad (21) and with the up end looks butt of bearing (4), apron (62) cover is in rotation axis (3) are gone up and the embedding is in on the edge of mount pad (21), just apron (62) are located the top of felt pad (61) and mutual butt.

3. The centrifugal fan lubricating oil chamber mechanism as claimed in claim 2, wherein: a boss (62-1) is arranged on one surface, facing the felt pad (61), of the cover plate (62), a circle of groove (62-2) is formed between the boss (62-1) and the side wall of the cover plate (62), and the groove (62-2) is abutted to the upper end face of the mounting seat (21).

4. The centrifugal fan lubricating oil chamber mechanism as claimed in claim 3, wherein: and a concave platform (62-3) for embedding the end face of the wind wheel is arranged on the other surface of the cover plate (62).

5. The centrifugal fan lubricating oil chamber mechanism as claimed in claim 2, wherein: the upper end surface of the bearing (4) is provided with a plurality of oil channel grooves (41) which penetrate through the end surface of the inner wall of the bearing and the end surface of the outer wall of the bearing; and the oil channel grooves (41) are distributed around the shaft core of the bearing (4) at equal intervals.

6. The centrifugal fan lubricating oil chamber mechanism as claimed in claim 5, wherein: the bearing is characterized in that the inner wall end face and the upper end face of the bearing (4) are in transition forming through an inclined face (42), and the outer wall end face and the upper end face of the bearing (4) are in transition forming through an arc face (43).

7. The lubricating oil cavity mechanism of the centrifugal fan as claimed in claim 2, wherein: the lower end face of the bearing (4) is limited and fixed between the rotating shafts (3) through a clamping ring (7), and the clamping ring (7) is connected to the rotating shafts (3) in a clamped mode.

8. The centrifugal fan lubricating oil chamber mechanism as claimed in claim 7, wherein: and a wear-resistant gasket (8) is arranged between the snap ring (7) and the end surface of the bearing (4).