CN218717672U

CN218717672U - Fan oil-supplementing structure

Info

Publication number: CN218717672U
Application number: CN202222676932.0U
Authority: CN
Inventors: 梁强; 邹文军; 庞飞
Original assignee: Asia Vital Components Co Ltd
Current assignee: Asia Vital Components Co Ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2023-03-24
Anticipated expiration: 2032-10-11

Abstract

The utility model provides a fan mends oily structure, including an axle bed and an at least oil storage part, the protruding hollow shaft barrel that has stretched of department in the middle of this axle bed, be equipped with a bearing hole and an at least lateral wall recess in this shaft barrel, and be provided with an oil bearing in this bearing hole, this oil bearing is pivoted mutually with the axle center of a fan wheel and establishes, this oil storage part is established in this lateral wall recess of this shaft barrel, borrow and keep the oil storage capacity by this oil storage part absorption this oil bearing throws away a lubricating oil of backward flow to properly release lubricating oil and reach this oil bearing and mend oily efficiency with increase of service life.

Description

Fan oil-supplementing structure

Technical Field

The utility model relates to a fan especially relates to a fan mends oily structure.

Background

The fan is a key component of the heat dissipation system, and the improvement of the service life and the reliability of the fan are important for ensuring the stable operation of the system. The lubricating design effect of the bearing of the fan has more important influence on the service life of the fan and the noise during operation: the poor lubricating effect of the bearing of the fan can cause the abrasion of the bearing, thereby reducing the service life of the fan and increasing the noise generated during the operation of the fan.

Since the conventional bearings are mainly used to pivot a rotating shaft of the fan and reduce the wear of the rotating shaft or corresponding pivoted parts caused by the direct rotational fit between the rotating shaft and other parts, and the conventional bearings are oil-retaining bearings (i.e., sleeve bearings) with low cost and low noise at the initial stage of operation, oil-retaining bearings are widely used for fans (e.g., axial fans or centrifugal fans). The oil-retaining bearing is a bearing which is self-lubricated by impregnating lubricating oil into the pores of the bearing, generally, a porous structure for storing the lubricating oil is formed by sintering metal or alloy, the porosity of the oil-retaining bearing determines the content of the lubricating oil in the oil-retaining bearing, but the porosity is limited by the manufacturing process of the oil-retaining bearing, so the content of the lubricating oil is limited. When the fan is operated for a period of time, the lubricating oil of the oil-containing bearing is thrown outwards under the action of centrifugal force along with the rotation of the rotating shaft, and after the oil content of the lubricating oil in the oil-containing bearing is reduced to a certain degree, the metal contact between the oil-containing bearing and the rotating shaft is increased, so that the abrasion between the oil-containing bearing and the rotating shaft is increased rapidly, the performance of the oil-containing bearing is shortened and the service life of the oil-containing bearing is prolonged, and a serious person can also lack the lubricating oil between the bearing and the rotating shaft due to the fact that all the lubricating oil is thrown out and runs off, and the oil-containing bearing and the rotating shaft are blocked to cause the damage of the whole fan.

In order to solve the problem of the oil-retaining bearing lubricating oil being thrown out due to physical characteristics, a plurality of grooves are formed at intervals on the inner side wall or the inner bottom of the shaft cylinder, and the oil content is increased by the grooves. Although the conventional method seems to prolong the service life of the oil-retaining bearing, the problem that the lubricating oil of the oil-retaining bearing is thrown outwards and gradually lacks the lubricating oil when the fan runs at high speed cannot be effectively solved.

In addition, during the assembly or transportation of the movable fan, the lubricant in the grooves can be moved, such as turned over or tilted or shaken, and then leaks to the outside of the shaft barrel, so that the lubricant in the original grooves leaks light, and no excess lubricant returns to the oil-retaining bearing, thereby reducing the service life of the fan and the oil-retaining bearing.

Therefore, how to maintain the oil content of the lubricating oil of the oil-retaining bearing and prolong the service life is a key topic in the field of oil-retaining bearing design.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present invention is directed to a fan oil-supplying structure capable of maintaining oil content of an oil-containing bearing by maintaining oil content and continuously supplying oil, so as to prolong the service life of the oil-containing bearing.

Another objective of the present invention is to provide an oil supplementing structure for a fan, which can prolong the service life of the fan.

In order to achieve the above object, the utility model provides a fan mends oily structure, a serial communication port, include:

a shaft seat, wherein a hollow shaft cylinder protrudes from the middle of the shaft seat, a bearing hole and at least one side wall groove are arranged in the shaft cylinder, an oil-containing bearing is arranged in the bearing hole, and the oil-containing bearing is pivoted with a shaft center of a fan wheel; and

at least one oil storage part is arranged in the side wall groove of the shaft barrel, and the oil storage part is used for storing a considerable amount of oil, absorbing the lubricating oil thrown out from the oil-containing bearing and the shaft center to recover and store the oil, and releasing the lubricating oil to the oil-containing bearing for lubrication.

The fan mend oily structure, wherein: the inner surface of the shaft barrel is provided with a plurality of strip-shaped side wall grooves which are arranged at intervals, and a plurality of strip-shaped oil storage components are arranged in the plurality of strip-shaped side wall grooves.

The fan mend oily structure, wherein: the inner surface of the shaft cylinder is provided with a plurality of bottom wall grooves which are arranged at intervals.

The fan mend oily structure, wherein: the inner surface of the shaft cylinder is provided with a side wall circular groove which is concavely arranged at the inner side of the bearing hole along the inner peripheral edge of the shaft cylinder and is positioned above the plurality of strip-shaped side wall grooves to be mutually connected and communicated, and a circular oil storage part is arranged in the side wall circular groove and is contacted with the upper side of at least one oil storage part.

The fan mend oily structure, wherein: the oil storage component is made of an oil adsorption material, and the oil adsorption material is of a porous structure, a sponge structure, a foam structure or a foaming body structure.

The fan mend oily structure, wherein: the circular oil storage part and the at least one oil storage part are integrally formed components or separate independent components.

Borrow by the utility model discloses the setting of this oil storage part, except can storing and storing a certain amount of lubricating oil, this oiliness bearing of adsorbable again throws away the lubricating oil of backward flow to release this lubricating oil to oiliness bearing when appropriate and reach the benefit oil efficiency, use increase of service life.

Drawings

Fig. 1 is a schematic view of a fan assembly according to the present invention with a cross section and a partial enlarged view.

Fig. 2A is a schematic view of a three-dimensional decomposition of the oil supply structure of the fan of the present invention.

Fig. 2B is a schematic exploded view of an oil supply structure of a fan according to an alternative embodiment of the present invention.

Description of reference numerals: a fan-1; a frame body-10; a shaft seat-11; shaft barrel-111; a bottom wall recess-1121; sidewall recess-1131; upper opening-1132; lower opening-1133; sidewall circular grooves-1134; bearing bore-114; a fan wheel-12; a blade-121; a core-122; a magnetic member-13; oil-impregnated bearing-14; a stator-15; lubrication gap-16; an oil storage part-21; a circular oil storage part-22.

Detailed Description

The above objects, together with the structural and functional features thereof, will be best understood from the following description of the preferred embodiment when read in connection with the accompanying drawings.

The utility model provides a fan mends oily structure. Referring to fig. 1 and 2A, the oil supply structure of the fan includes a shaft seat 11 and at least one oil storage component 21, in this embodiment, the shaft seat 11 is a fan 1 (such as an axial fan and a centrifugal fan) and includes a shaft seat 11 disposed in a frame 10, and the shaft seat 11 is pivoted to a fan wheel 12 formed by a plurality of blades 121 and accommodated in the frame 10. But not limited to this, in practical implementation, the shaft seat 11 may also be applied to the shaft seat 11 of the centrifugal fan 1 or the shaft seat 11 of the frameless fan 1.

A hollow shaft tube 111 protrudes from the middle of the shaft seat 11, a bearing hole 114 is formed in the shaft tube 111, an oil-retaining bearing 14 (porous bearing) is disposed in the bearing hole 114, the oil-retaining bearing 14 is pivoted with a shaft center 122 of the impeller 12, and a lubricating gap 16 is formed between the oil-retaining bearing 14 and the shaft center 122 for lubricating and separating metal contact friction between the oil-retaining bearing 14 and the shaft center 122. A stator 15 is sleeved outside the shaft tube 111, the fan wheel 12 is covered on the periphery of the stator 15 of the shaft tube 111, and a magnetic element 13 (such as a magnet) is arranged inside the fan wheel and is excited by the stator 15.

Referring to fig. 1 and fig. 2A, at least one bottom wall groove 1121 and at least one side wall groove 1131 are respectively disposed on the inner surface of the shaft cylinder 111, in this embodiment, the side wall grooves 1131 and the bottom wall grooves 1121 are a plurality of grooves disposed at intervals on the inner side wall and the inner bottom of the bearing hole 114, that is, the elongated side wall grooves 1131 are axially disposed (i.e., parallel to the axis 122) at intervals on the inner side wall of the bearing hole 114 and are located at the outer side adjacent to or contacting the oil-retaining bearing 14, and each side wall groove 1131 has an upper opening 1132 and a lower opening 1133 respectively disposed at the upper end and the lower end of the side wall groove 1131. The bottom wall recesses 1121 are radially spaced at the bottom of the inner side of the bearing hole 114 and are located below the bottom surface of the adjacent oil bearing 14. In another embodiment, the bottom wall recess 1121 may be omitted.

Referring to fig. 1 and 2A, the oil storage component 21 is disposed in the sidewall recess 1131 of the shaft tube 111 and is made of an oil-absorbing material, which is a porous structure, a sponge structure, a foam structure, or a foam structure, and can absorb or store lubricating oil. In this embodiment, the plurality of oil storage members 21 are provided, and the number and shape of the oil storage members 21 correspond to those of the sidewall grooves 1131, that is, the strip-shaped oil storage members 21 are embedded (inserted) in the sidewall grooves 1131, the upper side and the lower side of each oil storage member 21 are respectively located in the upper opening 1132 and the lower opening 1133 of each sidewall groove 1131, and the outer surface of the oil storage member 21 is flush with or slightly higher than the sidewall grooves 1131. In addition, before the actual assembly, the oil storage part 21 itself is soaked with the lubricating oil, so that the lubricating oil can be properly supplemented to the oil-retaining bearing 14 in time for use. Further, since the oil storage member 21 is provided in the corresponding side wall groove 1131 to serve as a backup oil storage, an increase in oil storage amount is achieved. In addition, during the process of assembling or transporting the movable fan, the oil storage part 21 absorbs and stores (holds) the leaked (overflowed) lubricating oil to prevent the lubricating oil in the shaft cylinder 111 from leaking to the outside of the shaft cylinder 111, so that the problem of the lubricating oil leakage during the movement (such as overturning or shaking) of the fan 1 can be avoided.

In addition, generally, the axial center 122 of the impeller 12 generates high temperature during high-speed operation, so that the lubricating oil in the lubricating gap 16 is affected by the high temperature and the damage is reduced. However, the present invention can timely supplement the lubricant consumed by the oil-retaining bearing 14 through the oil storage part 21, so that the lubricant in the oil-retaining bearing 14 is sufficient to maintain the operation with the shaft center 122.

When the fan wheel 12 of the fan 1 is running, the lubricant in the oil-retaining bearing 14 overflows the lubrication gap 16 between the shaft center 122 and the oil-retaining bearing 14, so as to lubricate between the shaft center 122 of the fan wheel 12 and the oil-retaining bearing 14, and the excess lubricant is thrown away by the centrifugal force generated by the rotation of the shaft center 122 of the fan wheel 12, so that the thrown-away lubricant overflows upwards to the top surface of the oil-retaining bearing 14 along the lubrication gap 16, and is then absorbed and stored by the oil storage members 21, and then the lubricant absorbed and returned by the oil storage members 21 is properly released downwards to pass through the bottom wall grooves 1121 or directly supplemented to the oil-retaining bearing 14 due to the gravity and/or oil content of the lubricant at the maximum value and/or vibration during running to achieve the effect of supplementing oil, so as to recover the leaked (overflowed) oil and supplement oil continuously, so as to ensure that the lubricant is constantly maintained between the shaft center 122 and the oil-retaining bearing 14, thereby prolonging the service life of the oil-retaining bearing 14 and reducing the noise generated by the oil-retaining bearing 14.

Although the side wall grooves 1131 and the oil storage members 21 of the present invention are long. But not limited thereto, in another embodiment, the sidewall grooves 1131 and the oil storage members 21 may have a polygonal shape or an irregular shape.

In an alternative embodiment, referring to fig. 2B, the inner surface of the shaft cylinder 111 is provided with a side wall circular groove 1134 recessed along the inner peripheral edge of the shaft cylinder 111 at the inner side wall of the bearing hole 114, and the side wall circular groove 1134 is located between the upper opening 1132 of the side wall groove 1131 and the top end of the shaft cylinder 111, and is communicated with the upper opening 1132 opposite to the side wall groove 1131. And a circular oil storage part 22 is arranged in the circular groove 1134 of the side wall, the lower side of the circular oil storage part 22 is contacted and connected with the upper side of the oil storage parts 21 accommodated in the grooves 1131 of the side wall, so that more storage amount of lubricating oil can be obtained through the circular oil storage part 22 and the oil storage parts 21, and the lubricating oil which is thrown out and returned can be provided for the oil-retaining bearing 14 at proper time, so as to prolong the service life of the oil-retaining bearing 14.

Although the above alternative embodiment, the circular oil reservoir part 22 and the oil reservoir parts 21 are integrally provided as separate members. But not limited thereto, in other alternative embodiments, the circular oil reservoir part 22 and the oil reservoir parts 21 may be provided as a single member integrally formed.

Therefore, by the design of the oil supplementing structure of the fan of the present invention, the characteristic that the oil storing part 21 is a porous structure or a sponge structure or a foam structure can store or store (keep) a considerable amount of oil (lubricating oil) to prevent the fan structure from leaking out by throwing due to the rotating physical characteristics, and can absorb the lubricating oil thrown out by the shaft center 122 of the oil bearing 14 to be recovered and properly released to the oil bearing, so that the oil bearing can be separated from the shaft center 122 by the oil film of the lubricating oil for lubrication under long-time operation, thereby reducing the chance of metal contact friction (abrasion) between the shaft center 122 and the oil bearing 14, and effectively achieving the effects of increasing the service life and reducing the noise.

Claims

1. A fan oil supplementing structure is characterized by comprising:

at least one oil storage component is arranged in the side wall groove of the shaft cylinder.

2. The fan oil feeding structure of claim 1, wherein: the inner surface of the shaft barrel is provided with a plurality of strip-shaped side wall grooves which are arranged at intervals, and a plurality of strip-shaped oil storage components are arranged in the plurality of strip-shaped side wall grooves.

3. The fan oil feeding structure of claim 2, wherein: the inner surface of the shaft cylinder is provided with a plurality of bottom wall grooves which are arranged at intervals.

4. The fan oil feeding structure of claim 2, wherein: the inner surface of the shaft cylinder is provided with a side wall circular groove which is concavely arranged at the inner side of the bearing hole along the inner peripheral edge of the shaft cylinder and is positioned above the plurality of strip-shaped side wall grooves to be mutually connected and communicated, and a circular oil storage part is arranged in the side wall circular groove and is contacted with the upper side of at least one oil storage part.

5. The fan oil feeding structure of claim 1, wherein: the oil storage component is made of an oil adsorption material, and the oil adsorption material is of a porous structure, a sponge structure, a foam structure or a foaming body structure.

6. The fan oil feeding structure of claim 4, wherein: the circular oil storage part and the at least one oil storage part are integrally formed components or separate independent components.