CN220706012U - Bearing oil storage structure of radiator fan - Google Patents
Bearing oil storage structure of radiator fan Download PDFInfo
- Publication number
- CN220706012U CN220706012U CN202322429814.4U CN202322429814U CN220706012U CN 220706012 U CN220706012 U CN 220706012U CN 202322429814 U CN202322429814 U CN 202322429814U CN 220706012 U CN220706012 U CN 220706012U
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- China
- Prior art keywords
- oil storage
- bearing
- storage ring
- ring
- radiator fan
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- 238000007493 shaping process Methods 0.000 claims abstract description 4
- 238000005498 polishing Methods 0.000 claims description 11
- 238000003825 pressing Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 abstract description 11
- 238000005461 lubrication Methods 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 230000006378 damage Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 97
- 239000010687 lubricating oil Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002498 deadly effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The utility model provides a radiator fan's bearing oil storage structure, includes the axle bed of shaping in fan frame center, pressure equipment in the axle bed bearing, insert the axle center in the bearing, seal the axle bed upper end and press the clamping ring lid on the bearing, and the axle center upper end stretches out the clamping ring lid and is fixed with radiator fan's wheel hub, its characterized in that: the oil storage ring with a hollow structure is arranged in the shaft seat, the bearing is coaxially supported on the oil storage ring, and the lower end of the shaft center extends into the oil storage ring and contacts with the bottom of the oil storage ring. According to the utility model, the oil storage space and the oil storage capacity in the shaft seat are increased, the flowing space of oil and gas is increased, the possibility that air escapes from the space between the shaft center and the bearing due to temperature rise is reduced, the damage to an oil film between the shaft center and the bearing is reduced, the oil leakage is reduced, the lubrication reliability between the shaft center and the bearing is improved, the running stability of the cooling fan is improved, and the service life of the cooling fan is prolonged.
Description
Technical Field
The utility model relates to a bearing oil storage structure of a cooling fan, and belongs to the technical field of cooling fans.
Background
The electronic product is smaller and smaller, so that the heat productivity of the core sheet in unit volume is larger and larger, the fan is used as a main heat dissipation element, long-term effective operation is deadly guaranteed, lubrication of a bearing of the fan is critical to the service life and operation stability of the fan in the operation process of the fan, the bearing is usually arranged in a shaft seat in the center of a fan frame, the fan blade is connected with the shaft center of a rotor through a hub, and the shaft center is inserted into the bearing to enable the fan blade to be arranged in the fan frame. In order to reduce friction between the shaft center and the bearing, lubricating oil is usually added between the shaft center and the bearing, a corresponding oil storage cavity or an oil storage gap is arranged in the shaft seat so as to store a certain amount of lubricating oil, the bearing is continuously lubricated, the temperature of the lubricating oil is increased due to friction generated by rotation of the bearing and the shaft center, and the lubricating oil has higher fluidity, so that when the shaft center rotates, the lubricating oil can be driven by the rotating shaft center to rise along the gap between the bearing and the shaft center, and in order to avoid oil splashing, an oil retainer is arranged on the shaft seat so as to prevent the lubricating oil from continuously moving upwards along the axial direction and splashing out of the bearing. The rotation of the axle center generates friction, the friction generates heat, the heated volume of gas in the axle seat expands, the air pressure increases, the air escapes from the space between the axle center and the bearing, an oil film formed between the axle center and the bearing is damaged, and an oil leakage phenomenon is generated, so that the oil quantity in the axle seat gradually decreases along with the movement abrasion, the oil needs to be added regularly, the waste rate of the oil is high, the oil storage space in the axle seat is small, if the added lubricating oil is too much, the problem of oil throwing is caused, if the added lubricating oil is too little, the operation stability of a fan is influenced, abnormal sound is generated, and the service life of the fan is influenced.
Disclosure of Invention
According to the bearing oil storage structure of the cooling fan, the oil storage space and the oil storage capacity in the shaft seat are increased, the flowing space of oil and gas is increased, the probability of air escaping from the space between the shaft center and the bearing due to temperature rise is reduced, the damage to an oil film between the shaft center and the bearing is reduced, oil leakage is reduced, the lubrication reliability between the shaft center and the bearing is improved, the running stability of the cooling fan is improved, and the service life of the cooling fan is prolonged.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a radiator fan's bearing oil storage structure, includes the axle bed of shaping in fan frame center, pressure equipment in the axle bed bearing, insert the axle center in the bearing, seal the axle bed upper end and press the clamping ring lid on the bearing, and the axle center upper end stretches out the clamping ring lid and is fixed with radiator fan's wheel hub, its characterized in that: the oil storage ring with a hollow structure is arranged in the shaft seat, the bearing is coaxially supported on the oil storage ring, and the lower end of the shaft center extends into the oil storage ring and contacts with the bottom of the oil storage ring.
Preferably, the edge of the top surface of the oil storage ring is provided with a positioning block, the edge of the bottom surface of the bearing is provided with a chamfering groove matched with the positioning block, the positioning blocks are uniformly distributed at intervals along the circumference of the oil storage ring, and the positioning blocks are pressed in the chamfering groove along with the pressing of the pressing ring cover on the bearing.
Preferably, the oil storage ring is in clearance fit with the inner wall of the shaft seat, a top surface through hole is formed in the top surface of the oil storage ring, a side surface through hole is formed in the side surface of the oil storage ring, and a bottom surface through hole is formed in the bottom surface of the oil storage ring.
Preferably, the axle center is from last to lower integrated into one piece by the upper segment that stretches into in the bearing hole, pass the top surface through-hole and stretch into the hypomere in the oil storage ring and the contact bottom piece that contacts with the oil storage ring bottom, the diameter of upper segment and the diameter of contact bottom piece all are greater than the internal diameter of top surface through-hole, the diameter of hypomere is less than the internal diameter of top surface through-hole, the bottom surface of contact bottom piece is spherical shape and oil storage ring bottom point contact.
Preferably, the edge of the top surface through hole is a chamfer edge inclined downwards and is separated from the axle center and is not contacted with the axle center.
Preferably, the bottom of the oil storage ring is integrally formed with a polishing bottom plate in point contact with the contact bottom block, the polishing bottom plate is radially arranged along the oil storage ring, and a bottom surface through hole is formed between the polishing bottom plate and the inner edge of the bottom surface of the oil storage ring.
Preferably, the side wall of the oil storage ring is provided with an inward concave surface which extends to the top surface of the oil storage ring, a plurality of inner concave surfaces are uniformly arranged on the circumference of the oil storage ring, and the side through holes are formed in the inner concave surfaces.
The beneficial effects of the utility model are as follows:
1. according to the bearing oil storage structure of the cooling fan, the oil storage ring is arranged in the shaft seat, the bearing is supported by the oil storage ring, lubricating oil is stored in the oil storage ring, the oil storage space and the oil storage capacity in the shaft seat are increased, so that the lubricating oil supply quantity is increased, the lubricating period is prolonged, the oil storage ring with a hollow structure increases the flowing space of the lubricating oil and the gas, the probability of air escaping from between the shaft center and the bearing due to temperature rise is reduced, the damage to an oil film between the shaft center and the bearing is reduced, the oil leakage is reduced, the lubricating reliability between the shaft center and the bearing is improved, the running stability of the cooling fan is improved, and the service life of the cooling fan is prolonged.
2. The positioning block is arranged at the edge of the top surface of the oil storage ring, the chamfering groove is arranged at the edge of the bottom surface of the bearing, the bearing is circumferentially positioned through the matching of the positioning block and the chamfering groove, the bearing is prevented from loosening and rotating in the shaft seat due to temperature change in the use process, the stability of the bearing assembly structure is improved, abnormal sound generated due to loosening of the assembly structure in the use process is reduced, and the service life of the cooling fan is prolonged.
Drawings
Fig. 1 is a schematic diagram of a bearing oil storage structure of a radiator fan according to the present utility model.
Fig. 2 is a schematic view of an oil reservoir ring.
Fig. 3 is a schematic view of an oil reservoir in semi-section.
Fig. 4 is an inverted schematic view of the oil reservoir ring.
FIG. 5 is a schematic diagram of the axis.
Detailed Description
Embodiments of the present utility model are described in detail below with reference to fig. 1 to 5.
The utility model provides a radiator fan's bearing oil storage structure, includes shaping at fan frame center's axle bed 1, pressure equipment bearing 2 in axle bed 1, insert axle center 3 in the bearing 2, seal axle bed 1 upper end and press the clamping ring lid 4 on the bearing, and the pressing ring lid is stretched out to axle center 3 upper end and is fixed with radiator fan's wheel hub, its characterized in that: the oil storage ring 5 with a hollow structure is arranged in the shaft seat 1, the bearing 2 is coaxially supported on the oil storage ring 5, and the lower end of the shaft center 3 extends into the oil storage ring 5 and contacts with the bottom of the oil storage ring 5.
Above-mentioned radiator fan's bearing oil storage structure sets up oil storage ring 5 in axle bed 1, supports bearing 2 with oil storage ring 2, stores lubricating oil in oil storage ring 5, increases the interior oil storage space of axle bed 1 and oil storage volume to promote lubricating oil supply volume, extension lubrication cycle, hollow structure's oil storage ring 5 increases fluid and gaseous flow space, reduces the probability that air escaped from between axle center 3 and bearing 2 because of the intensification, reduces the destruction to the oil film between axle center 3 and bearing 2, reduces the oil leak, improves the lubrication reliability between axle center 3 and bearing 2, improves radiator fan's operating stability, and radiator fan's life is prolonged.
The top surface edge of the oil storage ring 5 is provided with a positioning block 51, the bottom surface edge of the bearing 2 is provided with chamfer grooves 21 matched with the positioning block 51, the positioning blocks 51 are uniformly distributed at intervals along the circumference of the oil storage ring 5, and the positioning blocks 51 are pressed in the chamfer grooves 21 along with the pressing ring cover 4 pressing on the bearing 2. Through the cooperation of locating piece 51 and chamfer recess 21, carry out circumferential location to bearing 2, prevent to lead to bearing 2 to become flexible and rotate in axle bed 1 because of the change of temperature in the use, improve bearing assembly structure's stability.
Wherein, the oil storage ring 5 is in clearance fit with the inner wall of the shaft seat 1, the top surface of the oil storage ring 5 is provided with a top surface through hole 52, the side surface is provided with a side surface through hole 53, and the bottom surface is provided with a bottom surface through hole 54. Through holes are formed in the top surface, the side surface and the bottom surface of the oil storage ring 5 to form a hollow structure, the oil storage ring 5 is in clearance fit with the inner wall of the shaft seat, the oil storage space at the bottom of the bearing is increased, the flowing space of gas and oil is increased, and the requirement that the oil and the gas have high fluidity in the operation process of the fan is met.
The shaft center 3 is integrally formed from top to bottom by an upper section 31 extending into an inner hole of the bearing 2, a lower section 32 extending into the oil storage ring 5 through the top surface through hole 52, and a contact bottom block 33 contacting with the bottom of the oil storage ring 5, wherein the diameter of the upper section 31 and the diameter of the contact bottom block 33 are both larger than the inner diameter of the top surface through hole 52, the diameter of the lower section 32 is smaller than the inner diameter of the top surface through hole 52, and the bottom surface of the contact bottom block 33 is in spherical surface shape and is in point contact with the bottom of the oil storage ring. The inner diameter of the top surface through hole 52 is smaller than the diameters of the upper section 31 and the contact bottom block 3, so that the axle center is prevented from being separated from the oil storage ring 5, the limit is formed on the axial movement of the axle center, a limit part is not required to be additionally arranged in the axle seat, and the assembly of parts in the axle seat is simplified so as to obtain a larger oil storage space.
Wherein, the edge of the top through hole 52 is a chamfer edge 521 inclined downwards and is separated from contact with the axle center 3. The interference of the edge of the through hole on the top surface to the rotation of the axle center is avoided, and meanwhile, the oil storage space in the axle seat is increased.
Wherein, the bottom of the oil storage ring 5 is integrally formed with a polishing bottom plate 55 in point contact with the contact bottom block 33, the polishing bottom plate 55 is radially arranged along the oil storage ring, and a bottom surface through hole is formed between the polishing bottom plate 55 and the inner edge of the bottom surface of the oil storage ring 5. The polishing bottom plate 55 and the oil storage ring 5 are integrally formed, so that the inner structure of the shaft seat is simplified, errors in the assembly process are reduced, meanwhile, the structural reliability is improved, the surface, in contact with the contact bottom block 33, of the polishing bottom plate 55 is polished, the friction coefficient is reduced, and the abrasion of the shaft center 3 is reduced.
The side wall of the oil storage ring 5 is provided with an inward concave surface 56, the inward concave surface 56 extends to the top surface of the oil storage ring, the inward concave surface 56 is uniformly arranged on the circumference of the oil storage ring 5, and the side surface through holes 53 are formed in the inward concave surface 56. The oil storage ring 5 is placed in the shaft seat 1, a plurality of oil storage cavities are formed between the inner concave surface 56 and the inner wall of the shaft seat 1, the side through holes 53 are formed in the inner concave surface 56, and the communicated oil storage of the inner cavity of the oil storage ring and the inner cavity of the shaft seat is formed, so that the oil storage space is increased, the flowing space of liquid oil and gas in the shaft seat is increased, the gas can be discharged from the inner cavity of the oil storage ring 5 to the inner cavity of the shaft seat 1 through the side through holes 53 during heating, the probability that the oil film between the shaft center 3 and the bearing 2 is damaged by the gas is reduced, and the lubrication reliability is further improved.
The foregoing disclosure of embodiments of the present utility model has been fully described with reference to the accompanying drawings, in which it is to be understood that the embodiments described are merely some of the embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Claims (7)
1. The utility model provides a radiator fan's bearing oil storage structure, includes the axle bed of shaping in fan frame center, pressure equipment in the axle bed bearing, insert the axle center in the bearing, seal the axle bed upper end and press the clamping ring lid on the bearing, and the axle center upper end stretches out the clamping ring lid and is fixed with radiator fan's wheel hub, its characterized in that: the oil storage ring with a hollow structure is arranged in the shaft seat, the bearing is coaxially supported on the oil storage ring, and the lower end of the shaft center extends into the oil storage ring and contacts with the bottom of the oil storage ring.
2. The bearing oil storage structure of a radiator fan according to claim 1, wherein: the edge of the top surface of the oil storage ring is provided with a positioning block, the edge of the bottom surface of the bearing is provided with a chamfering groove matched with the positioning block, the positioning blocks are uniformly distributed at intervals along the circumference of the oil storage ring, and the positioning blocks are pressed in the chamfering groove along with the pressing of the pressing ring cover on the bearing.
3. The bearing oil storage structure of a radiator fan according to claim 2, wherein: the oil storage ring is in clearance fit with the inner wall of the shaft seat, a top surface through hole is formed in the top surface of the oil storage ring, a side surface through hole is formed in the side surface of the oil storage ring, and a bottom surface through hole is formed in the bottom surface of the oil storage ring.
4. A bearing oil storage structure of a radiator fan according to claim 3, wherein: the axle center from last to lower integrated into one piece by the upper segment that stretches into in the bearing hole, pass the top surface through-hole and stretch into the hypomere in the oil storage ring and with the contact bottom piece of oil storage ring bottom contact, the diameter of upper segment and the diameter of contact bottom piece all are greater than the internal diameter of top surface through-hole, the diameter of hypomere is less than the internal diameter of top surface through-hole, the bottom surface of contact bottom piece is spherical shape and oil storage ring bottom point contact.
5. The bearing oil storage structure of a radiator fan according to claim 4, wherein: the edge of the top surface through hole is a chamfer edge which is inclined downwards and is separated from the axle center and does not contact with the axle center.
6. The bearing oil storage structure of a radiator fan according to claim 4, wherein: the oil storage ring bottom integrated into one piece with the polishing bottom plate of contact bottom block point contact, polishing bottom plate radially sets up along the oil storage ring, forms the bottom surface through-hole between polishing bottom plate and the oil storage ring bottom surface inward flange.
7. A bearing oil storage structure of a radiator fan according to claim 3, wherein: the side wall of the oil storage ring is provided with an inward concave surface which extends to the top surface of the oil storage ring, a plurality of inner concave surfaces are uniformly arranged on the circumference of the oil storage ring, and side through holes are formed in the inner concave surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322429814.4U CN220706012U (en) | 2023-09-07 | 2023-09-07 | Bearing oil storage structure of radiator fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322429814.4U CN220706012U (en) | 2023-09-07 | 2023-09-07 | Bearing oil storage structure of radiator fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220706012U true CN220706012U (en) | 2024-04-02 |
Family
ID=90439635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322429814.4U Active CN220706012U (en) | 2023-09-07 | 2023-09-07 | Bearing oil storage structure of radiator fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220706012U (en) |
-
2023
- 2023-09-07 CN CN202322429814.4U patent/CN220706012U/en active Active
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