CN108413484B - Air conditioner fan blade bearing seat assembly and air conditioner indoor unit - Google Patents
Air conditioner fan blade bearing seat assembly and air conditioner indoor unit Download PDFInfo
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- CN108413484B CN108413484B CN201710586870.5A CN201710586870A CN108413484B CN 108413484 B CN108413484 B CN 108413484B CN 201710586870 A CN201710586870 A CN 201710586870A CN 108413484 B CN108413484 B CN 108413484B
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- Prior art keywords
- fan blade
- mounting hole
- air conditioner
- bearing
- blade bearing
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides an air conditioner fan blade bearing seat assembly and an air conditioner indoor unit, and belongs to the technical field of household appliances. The air conditioner fan blade bearing seat assembly comprises a bearing seat, wherein the bearing seat is provided with a mounting hole for mounting a fan blade bearing, at least one part of the mounting hole is a reducing section, and the fan blade bearing can be mounted in the mounting hole in an interference fit manner. When the air conditioner indoor unit provided with the assembly is assembled, one end of the small opening of the variable diameter section of the bearing seat faces towards the fan blade, the fan blade bearing is assembled into the mounting hole from the outer side of the fan blade, and due to the existence of the variable diameter section, the fan blade bearing is limited by the variable diameter section, so that the phenomenon that the fan blade bearing is separated towards one end of the fan blade to interfere with the work of the fan blade is avoided.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to an air conditioner fan blade bearing seat assembly and an air conditioner indoor unit.
Background
The existing air conditioner fan blade bearing seat is of a conventional cylindrical structure, when the air conditioner fan blade bearing seat is assembled, the conventional fan blade bearing seat and the bearing fixing seat are assembled in an outward manner from the fan blade end, an assembling inlet of the bearing fixing seat faces the fan blade end, the limiting structure is arranged on the outer side, and the fan blade bearing seat has the risk of being not assembled in place. Meanwhile, after the air conditioner runs for a long time, the fan blade bearing seat has the risk of falling out towards the fan blade end due to loosening or aging, and both the fan blade bearing seat and the fan blade side surface interfere with each other to influence the normal rotation of the fan blade, so that the normal operation of the air conditioner is influenced.
In the prior art, when the air conditioner fan blade bearing seat is assembled, the assembly is carried out from the fan blade end, and a baffle plate is required to be arranged on the outer side of the bearing seat to limit the fan blade bearing so as to prevent the bearing from being separated from the outer side of the bearing seat, so that the cost and the processing complexity are greatly increased by the arrangement mode. Therefore, a bearing seat assembly capable of avoiding interference to the fan blade is urgently needed to prolong the service life of the air conditioner.
Disclosure of Invention
The invention aims to provide an air conditioner fan blade bearing seat assembly, wherein the bearing seat of the air conditioner fan blade bearing seat assembly adopts a variable-diameter design so as to prevent a fan blade bearing arranged in the bearing seat from falling out from an installation hole towards a fan blade end.
The invention also aims to provide an air conditioner indoor unit which adopts the air conditioner fan blade bearing seat assembly, and can prevent the fan blade bearing from falling out towards the fan blade end to influence the fan blade work.
The invention is realized by adopting the following technical scheme:
an air conditioner fan blade bearing block assembly, comprising: the bearing pedestal, the bearing pedestal has relative first end and second end, the mounting hole that is used for installing fan blade bearing has been seted up to the bearing pedestal, the mounting hole is followed first end to the second end direction runs through the bearing pedestal, at least part of mounting hole is the reducing section, the big mouthful one end orientation of reducing section the first end. And the fan blade bearing is used for being assembled in the mounting hole in an interference fit manner.
For example, it is also possible to: an air conditioner fan blade bearing block assembly, comprising: the bearing pedestal, the bearing pedestal has relative first end and second end, the mounting hole that is used for installing fan blade bearing has been seted up to the bearing pedestal, the mounting hole is followed first end extremely the second end direction runs through the bearing pedestal, the mounting hole includes entry section and card section of holding, the internal diameter of entry section is greater than the internal diameter of card section of holding. The fan blade bearing is used for being inserted from the inlet section and in interference fit with the mounting hole, and the fan blade bearing is stopped by the clamping section.
Further, the inner diameter of the reducing section from the large-mouth end to the small-mouth end is gradually reduced.
Further, the inner diameter of the mounting hole gradually decreases in the direction from the first end to the second end.
Further, the mounting hole is a tapered hole.
Preferably, the mounting hole is a stepped hole.
Further, the mounting hole is a multi-stage stepped hole.
Further, the fan blade bearing is provided with a convex part protruding outwards along the axis of the fan blade bearing, and the convex part is positioned at the end part of the fan blade bearing matched with one end of the large opening of the mounting hole.
Further, the second end of the bearing housing is provided with a flange.
The utility model provides an indoor unit of air conditioner, includes fan blade, base and foretell air conditioner fan blade bearing frame subassembly, the bearing frame install in the base, the osculum one end of reducing section is towards the fan blade sets up, the fan blade bearing interference fit install in the mounting hole, the fan blade install in the fan blade bearing.
Further, in the indoor unit of an air conditioner, a protruding portion protruding outwards along the axis of the protruding portion is arranged at one end, away from the fan blade, of the fan blade bearing, and the protruding portion abuts against the base.
According to the air conditioner fan blade bearing seat assembly provided by the embodiment of the invention, as the reducing section is arranged in the mounting hole of the bearing seat, the fan blade bearing can be installed from the large-mouth end of the reducing section during assembly, and can not be separated from the small-mouth end of the reducing section under the limiting effect of the reducing section. In particular, the fan blade bearing is assembled in the mounting hole through interference fit, and the fan blade bearing is fixed and stable.
Meanwhile, in the air conditioner indoor unit provided with the air conditioner fan blade bearing seat assembly, when the air conditioner indoor unit is assembled, one end of the small opening of the bearing seat reducing section faces towards the fan blade, the fan blade bearing is assembled into the mounting hole from the outer side of the fan blade (the large opening end of the reducing section), and due to the existence of the reducing section, the fan blade bearing is limited by the reducing section, so that the phenomenon that the fan blade bearing is separated towards one end of the fan blade to interfere with the operation of the fan blade is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and should not be considered as limiting the scope, and other related drawings can be obtained according to the drawings without inventive effort for a person skilled in the art, which also belong to the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of a bearing seat assembly for an air conditioner fan blade according to embodiment 1 of the present invention;
fig. 2 is a cross-sectional view of a bearing seat in the bearing seat assembly of an air conditioner fan blade provided in embodiment 1 of the present invention;
fig. 3 is a cross-sectional view of a bearing seat in the air conditioner fan blade bearing seat assembly provided in embodiment 2 of the present invention;
fig. 4 is a schematic structural diagram of an indoor unit of an air conditioner according to embodiment 3 of the present invention;
fig. 5 is a schematic structural diagram of an indoor unit of an air conditioner in an assembled state according to embodiment 3 of the present invention;
fig. 6 is an enlarged view at a in fig. 5.
Icon:
10-an air conditioner fan blade bearing seat assembly; 100-fan blades; 110-a base; 210-bearing seat; 211 a-mounting holes; 211 b-mounting holes, 212-flanges; 214-a first end; 215-a second end; 220-fan blade bearings; 221-protrusions.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
Referring to fig. 1, the present embodiment provides an air conditioning fan blade bearing block assembly 10, which includes a bearing block 210 and a wind She Zhoucheng 220, and referring to fig. 2, fig. 2 shows a cross-sectional structure diagram of the bearing block 210 in the present embodiment, wherein the bearing block 210 has a first end 214 and a second end 215 opposite to each other, the bearing block 210 is substantially cylindrical, and the bearing block 210 is provided with a mounting hole 211a for mounting the fan blade bearing 220.
The mounting hole 211a penetrates the bearing housing 210 in a direction from the first end 214 to the second end 215. The axis of the mounting hole 211a coincides with the axis of the bearing housing 210, wherein the mounting hole 211a is used for mounting or assembling the fan blade bearing 220.
At least a portion of the mounting hole 211a is a variable diameter section, which means that the inner diameters of the mounting holes 211a are not equal in the extending direction along the mounting hole 211a, wherein the variable diameter section may be a gradual section or a non-gradual section (i.e., abrupt section) of the inner diameters. For example, the mounting hole 211a may be designed to have an inlet section and a catching section, wherein the inlet section refers to an inlet portion of the mounting hole 211a, and the catching section refers to a portion for stopping the blade bearing 220 to prevent the blade bearing 220 from coming out from an end of the mounting hole 211a opposite to the inlet section. Wherein the inner diameter of the clamping section is smaller than the inner diameter of the inlet section.
In some embodiments of the invention, the reducing section may include all of the mounting hole 211a, i.e., the inner diameter of the entire mounting hole 211a is varied. The reducing section may include only a portion of the mounting hole 211a, i.e., the inner diameter of the mounting hole 211a varies in the reducing section, while the inner diameter of the mounting hole 211a is constant in other portions of the mounting hole 211a. It should be noted that the variable diameter section may be near the first end 214 or near the second end 215. The diameter-variable sections may be discontinuous, for example, a plurality of diameter-variable sections may be provided in the mounting hole 211a, and these diameter-variable sections may be provided adjacently or at intervals.
In this embodiment, all the mounting holes 211a are provided with a variable diameter, i.e., the variable diameter section includes all the mounting holes 211a. And the larger end of the variable diameter section is located at a first end 214 of the bearing housing 210 and the smaller end is located at a second end 215 of the bearing housing 210. And the inner diameter of the mounting hole 211a is continuously changed, that is, the inner diameter gradually decreases from the large-mouth end to the small-mouth end of the reducing section, that is, the inner diameter of the mounting hole 211a gradually decreases along the direction from the first end 214 to the second end 215.
Preferably, in the present embodiment, the mounting hole 211a is a tapered hole. That is, the mounting hole 211a has a V-shaped structure, and the inner diameter of the mounting hole 211a gradually decreases in the direction from the first end 214 to the second end 215. That is, the inner diameter of the mounting hole 211a is uniformly and gradually changed, which is advantageous in that the processing is facilitated, and the blade bearing 220 can be better matched with the bearing housing 210 when the assembly is performed. In other embodiments of the present embodiment, the mounting hole 211a may be a tapered hole, for example, the inner wall of the bearing housing 210 may be configured to be arc-shaped, and the fan blade bearing 220 may be configured to be matched with the mounting hole 211a.
Specifically, in the present embodiment, the second end 215 of the bearing housing 210 is bent outwards to form a flange 212, and the flange 212 is used to fix the bearing housing 210, for example: for fixing the bearing housing 210 to the base 110 of the indoor unit of the air conditioner.
The structure of the blade bearing 220 is matched with the mounting hole 211a, specifically, the blade bearing 220 is in interference fit with the bearing seat 210. I.e. the outer wall of the fan blade bearing 220 has a tapered structure that mates with the mounting hole 211a. After the fan blade bearing 220 is installed into the bearing housing 210 from the first end 214 (i.e., the installation hole 211a or the large end of the reducing section), the fan blade bearing 220 cannot be removed from the installation hole 211a from the second end 215 because the inner diameter of the installation hole 211a of the second end 215 is smaller than the inner diameter of the installation hole 211a of the first end 214, and the outer diameter of the corresponding fan blade bearing 220 is matched with the installation hole 211a. Further, as shown in fig. 1 and 2, an end of the fan bearing 220 (i.e., an end of the fan bearing 220 with a large outer diameter) that is engaged with the large opening end of the mounting hole 211a in the present embodiment protrudes outward to form a protrusion 221, and the protrusion 221 is disposed in the axial extension direction of the fan bearing 220.
The air conditioner fan blade bearing seat assembly 10 provided in this embodiment may be applied to an air conditioner indoor unit in the prior art, for example, and is used for installing and fixing fan blades.
Example 2
As shown in fig. 3, the present embodiment provides an air-conditioning fan blade bearing housing assembly 10, which is different from the air-conditioning fan blade bearing housing assembly 10 provided in embodiment 1 in that the bearing housing 210 is provided with a mounting hole 211b, wherein the structural arrangement of the variable diameter section of the mounting hole 211b is different from that of the mounting hole 211a in embodiment 1, and accordingly, the structure of the fan blade bearing 220 mated with the mounting hole 211b is mated with that of the bearing housing 210 in this embodiment.
Specifically, referring to fig. 3, in the present embodiment, the mounting hole 211a of the bearing seat 210 has a reducing section, the reducing section is located at the middle of the mounting hole 211a, and the reducing section only includes a portion of the mounting hole 211b, and the inner diameter of the reducing section is of a abrupt design, i.e. the mounting hole 211b is a stepped hole. Preferably, the mounting hole 211b is a stepped hole, i.e., only a stepped hole.
And, the large end of the stepped hole is located at the first end 214, the small end is located at the second end 215, and when assembled, the second end 215 is installed close to the fan blade 100, and the first end 214 is installed far away from the fan blade 100.
It should be noted that, the mounting hole 211b may also be a multi-stage stepped hole, and when the mounting hole 211b is designed as a multi-stage stepped hole, the inner diameter of the multi-stage stepped hole should be reduced from the first end 214 to the second end 215, so as to facilitate the assembly of the fan blade bearing 220 into the mounting hole 211b from the first end 214. Also, as in embodiment 1, the blade bearing 220 is an interference fit with the bearing housing 210. The stepped hole is designed to limit the fan blade bearing 220 to prevent the fan blade bearing 220 from falling out toward the fan blade 100, interfere with the normal operation of the fan blade 100, and prolong the service life of the air conditioner.
The air conditioner fan blade bearing seat assembly 10 provided in this embodiment may be applied to an air conditioner indoor unit in the prior art, for example, and is used for installing and fixing fan blades.
Example 3
Referring to fig. 4, the present embodiment provides an air conditioner indoor unit, which includes a fan blade 100, a base 110, and the air conditioner fan blade bearing seat assembly 10 of embodiment 1, wherein the base 110 is a component of the air conditioner indoor unit for being mounted on a wall. The specific structures of the fan blade 100 and the base 110 are not core content of the present invention, and those skilled in the art only need to refer to the prior art, and will not be described herein. It should be understood that, the fan blade 100 and the base 110 in the indoor unit of the air conditioner provided in this embodiment may be any fan blade and any base of the indoor unit of the air conditioner in the prior art.
In the air conditioning indoor unit of the embodiment, the bearing seat 210 is mounted on the base 110, and the small end of the reducing section of the mounting hole 211a is disposed toward the fan blade 100, and the large end of the reducing section of the mounting hole 211a is disposed toward the outside of the base 110. The fan blade bearing 220 is mounted in the mounting hole 211a, and the fan blade 100 is mounted on the fan blade bearing 220.
The structures of the fan blade bearing 220 and the mounting hole 211a of the bearing seat 210 are matched with each other, so that the fan blade bearing 220 can be assembled in the mounting hole 211a in an interference manner.
One end of the blade bearing 220, which is engaged with the large-mouth end of the mounting hole 211a (i.e., the large-outer-diameter end of the blade bearing 220), protrudes outward to form a protrusion 221, and the protrusion 221 is disposed along the axial extension direction of the blade bearing 220. When the fan blade bearing 220 is assembled in the mounting hole 211a in an interference fit manner, the protruding portion 221 protrudes out of the mounting hole 211a, and one end of the protruding portion 221 away from the fan blade 100 abuts against the base 110, so that one side of the fan blade bearing 220 facing the fan blade 100 is limited in movement freedom towards the fan blade 100 end due to the variable diameter section, and the situation that the fan blade bearing 220 is separated from the bearing seat 210 towards the fan blade 100 end after being used for a long time in the prior art, so that the work of the fan blade 100 is disturbed is avoided. In addition, since the boss 221 abuts against the base 110, the degree of freedom of movement of the blade bearing 220 in a direction away from the end of the blade 100 is also limited.
In the assembly of the indoor unit of the air conditioner provided in this embodiment, the fan blade bearing 220 is assembled into the bearing seat 210 from the first end 214 (far from the fan blade 100 end) of the mounting hole 211a, and due to the existence of the reducing section, when the fan blade bearing 220 cannot move further toward the fan blade 100 end, the fan blade bearing is assembled in place. At this time, the protrusion 221 of the fan blade bearing 220 abuts against the base 110. No blocking piece is required to be arranged in the assembling direction of the fan blade 100 to prevent the fan blade bearing 220 from falling out, and compared with the prior art, the cost is greatly saved.
It should be noted that, the fan blade bearing seat assembly in this embodiment may be replaced by the fan blade bearing seat assembly in embodiment 2, or the fan blade bearing seat assembly in embodiment 1 or embodiment 2 may be appropriately modified, and the assembly method and the installation method thereof are substantially the same.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The indoor unit of the air conditioner is characterized by comprising a fan blade, a base and an air conditioner fan blade bearing seat assembly;
the air conditioner fan blade bearing seat assembly comprises:
the bearing seat is arranged on the base of the indoor unit of the air conditioner and is provided with a first end and a second end which are opposite to each other, the bearing seat is provided with a mounting hole for mounting a fan blade bearing, the mounting hole penetrates through the bearing seat along the direction from the first end to the second end, the second end of the bearing seat is provided with a flange, at least one part of the mounting hole is a reducing section, the big end of the reducing section faces the first end, and the small end of the reducing section faces the fan blade;
the fan blade bearing is installed in the installation hole in an interference fit manner, and the fan blade is installed in the fan blade bearing; the fan blade bearing is characterized in that one end far away from the fan blade is provided with a convex part protruding outwards along the axis of the fan blade bearing, the convex part is positioned at the end part of the fan blade bearing matched with one end of the large opening of the mounting hole, and the convex part abuts against the base.
2. The indoor unit of claim 1, wherein the diameter of the reducing section is gradually reduced from a larger end to a smaller end.
3. An indoor unit for air conditioning according to claim 2, wherein the inner diameter of the mounting hole gradually decreases in the direction from the first end to the second end.
4. An indoor unit for air conditioning according to claim 3, wherein the mounting hole is a tapered hole.
5. The indoor unit of claim 1, wherein the mounting holes are stepped holes.
6. An indoor unit for air conditioning according to claim 5, wherein the mounting hole is a stepped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710586870.5A CN108413484B (en) | 2017-07-18 | 2017-07-18 | Air conditioner fan blade bearing seat assembly and air conditioner indoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710586870.5A CN108413484B (en) | 2017-07-18 | 2017-07-18 | Air conditioner fan blade bearing seat assembly and air conditioner indoor unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108413484A CN108413484A (en) | 2018-08-17 |
| CN108413484B true CN108413484B (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710586870.5A Active CN108413484B (en) | 2017-07-18 | 2017-07-18 | Air conditioner fan blade bearing seat assembly and air conditioner indoor unit |
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| CN (1) | CN108413484B (en) |
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| JPH10259819A (en) * | 1997-03-19 | 1998-09-29 | Mitsubishi Heavy Ind Ltd | Bearing device |
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| CN204805348U (en) * | 2015-04-09 | 2015-11-25 | 湖北新火炬科技有限公司 | Rivet ball hub bearing in terminal surface |
| CN205401448U (en) * | 2016-03-31 | 2016-07-27 | 河北工业大学 | A transfer crack bearing device that is used for outer taper sleeve of having of pole piece rolling mill |
| CN106438721A (en) * | 2016-11-18 | 2017-02-22 | 广西大学 | Bearing seat with interference magnitude being adjustable |
| CN206929877U (en) * | 2017-07-18 | 2018-01-26 | 奥克斯空调股份有限公司 | Air-conditioning fan blade bearing block assembly and indoor apparatus of air conditioner |
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2017
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60252198A (en) * | 1984-05-28 | 1985-12-12 | Toshiba Corp | Fan motor |
| JPH10259819A (en) * | 1997-03-19 | 1998-09-29 | Mitsubishi Heavy Ind Ltd | Bearing device |
| CN101684842A (en) * | 2009-05-15 | 2010-03-31 | 北京金业联和电机有限公司 | Aligning sliding bearing for efficient air valve of subway |
| CN103547820A (en) * | 2011-05-24 | 2014-01-29 | 西门子工业公司 | Self aligning oil film bearing |
| CN103122945A (en) * | 2011-11-19 | 2013-05-29 | 苏州市伟业金属制品有限公司 | Adapter sleeve |
| CN203648994U (en) * | 2013-12-17 | 2014-06-18 | 北京七星华创电子股份有限公司 | Roller bearing clearance adjusting device |
| CN204805348U (en) * | 2015-04-09 | 2015-11-25 | 湖北新火炬科技有限公司 | Rivet ball hub bearing in terminal surface |
| CN205401448U (en) * | 2016-03-31 | 2016-07-27 | 河北工业大学 | A transfer crack bearing device that is used for outer taper sleeve of having of pole piece rolling mill |
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| CN206929877U (en) * | 2017-07-18 | 2018-01-26 | 奥克斯空调股份有限公司 | Air-conditioning fan blade bearing block assembly and indoor apparatus of air conditioner |
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| CN108413484A (en) | 2018-08-17 |
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