CN210050094U - Fan bearing system with stable axis - Google Patents
Fan bearing system with stable axis Download PDFInfo
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- CN210050094U CN210050094U CN201920735085.6U CN201920735085U CN210050094U CN 210050094 U CN210050094 U CN 210050094U CN 201920735085 U CN201920735085 U CN 201920735085U CN 210050094 U CN210050094 U CN 210050094U
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- bearing
- plane
- fan
- oil
- axle center
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Abstract
The utility model discloses a fan bearing system with stable axle center, which comprises an axle sleeve, a plane bearing, a plane rotating sheet, a main bearing and an axle center, wherein the main bearing is fixedly arranged in the axle sleeve, the axle center can be inserted in the main bearing in a rotating way, the outer side surface of the circumference of one end of the axle center, which is far away from the fan blade, is fixedly sleeved with the plane rotating sheet, the plane bearing is fixedly arranged at the inner side of the lower end of the axle sleeve, and the plane bearing is supported on the lower end surface of the plane rotating sheet to be flat, the utility model discloses a horizontal rotating surface and a plane bearing are added to form a T-shaped relative rotating mode together with the main bearing, and an oil ditch is formed on the main bearing and the plane bearing, when the fan runs, oil flows from the outer diameter direction to the inner diameter direction of the oil ditch, the formed oil pressure pushes the rotor group outwards to float, the fan is enabled to run in a balanced mode, meanwhile, the plane rotating piece is blocked at the lower end of the main bearing, and the risk that the fan blades fall off can be avoided.
Description
Technical Field
The utility model relates to a fan, in particular to fan bearing system that axle center is stable.
Background
In general, a fan is operated in a relative rotation mode between the outer diameter of the shaft center and the inner diameter of the bearing, and because a shaft gap exists between the shaft center and the bearing, the operation amount can swing, so that the contact friction between the shaft center and the bearing is caused, and the service life of the fan is influenced.
In addition, the fan blades of the fan are kept at the set positions by means of magnetic attraction, and the fan blades are in falling risk when the fan is subjected to external force.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects, the utility model provides a fan bearing system that axle center is stable, this fan bearing system that the axle center is stable makes the more balanced rotation of bearing, prolongs the life of fan, more can avoid the risk that the flabellum appears droing.
The utility model discloses a solve the technical scheme that its technical problem adopted and be: the utility model provides a fan bearing system that axle center is stable, includes axle sleeve, plane bearing, plane rotor, base bearing and axle center, base bearing fixed mounting is in the axle sleeve for can the pivoted insert with flabellum fixed connection's axle center locate in the base bearing, fixed cover is equipped with the plane rotor on the circumference lateral surface that flabellum one end was kept away from in the axle center, and plane bearing fixed mounting is inboard at the axle sleeve lower extreme, and plane bearing supports under the plane rotor on the terminal surface is flat.
As a further improvement, the flat bearing is a planar ring structure, and the flat bearing is formed with a plurality of first oil grooves extending spirally from the outer diameter to the inner diameter towards one end of the planar rotating sheet on the surface, and the first oil grooves are filled with bearing oil.
As a further improvement, the at least one end face of the main bearing axial direction is a smooth plane or a plane formed with a second oil groove, the second oil groove is filled with bearing oil, and the plurality of second oil grooves extend spirally from the outer radial inner diameter direction of the main bearing.
As a further improvement of the present invention, the width of the first oil groove gradually narrows from the outer diameter of the planar bearing to the inner diameter, and the width of the second oil groove gradually narrows from the outer diameter of the planar bearing to the inner diameter.
As a further improvement of the utility model, the depth of the first oil groove and the second oil groove are both less than 0.2 mm.
As a further improvement of the present invention, the main bearing is an oil bearing, a turning bearing or a ceramic bearing.
As a further improvement of the present invention, the main bearing is fixedly mounted in the sleeve by a structure comprising: the inner side of the shaft sleeve is provided with a T-shaped hole with the inner diameter of the upper end larger than that of the lower end, the main bearing is inserted into the T-shaped hole, the lower end of the bearing tightly supports against a step surface formed between two ends of the shaft sleeve, the inner side of the opening end of the shaft sleeve is fixedly provided with a fixing ring, and the fixing ring tightly supports against the upper end surface of the main bearing.
As a further improvement, the utility model is also provided with a buffer sheet which is tightly clamped between the upper end face of the main bearing and the lower end face of the fixing ring.
As a further improvement of the utility model, a set gap exists between the axle center lower end and the shaft sleeve bottom surface.
As a further improvement, the axle center passes through interference fit or laser welding fixed connection with the plane revolving fragment, and the plane bearing passes through interference fit or the combination of gluing in the axle sleeve bottom.
The utility model has the advantages that: the utility model discloses an increase a horizontal rotation face and a flat bearing, form the relative rotation mode of "T" type with the base bearing together, and form the oil drain on base bearing and flat bearing, the outer radial internal diameter direction of oil drain is followed to the oil when fan operates flows, the oil pressure of formation outwards pushes the rotor assembly to floating, make flat rotor and flat bearing form non-contact relative rotation, reach the effect that the flat rotation supported, make the more balanced operation of fan, prolong the life of fan, and simultaneously, flat rotor blocks in the base bearing lower extreme, can avoid the risk that the flabellum drops to appear.
Drawings
Fig. 1 is a schematic diagram of a first structure of the present invention;
fig. 2 is a schematic diagram of a second structural principle of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a front view of the interference fit and fixed connection between the shaft center and the planar rotating piece;
FIG. 5 is a front view of the axis and the plane rotation piece welded and fixed together;
FIG. 6 is a view of the first oil groove structure of the flat bearing of the present invention;
FIG. 7 is a perspective view of a first structure of the main bearing of the present invention;
fig. 8 is a perspective view of a second structure of the main bearing of the present invention.
Shaft sleeve-1 plane bearing-2 plane rotary sheet-3
Main bearing-4 axial center-5 first oil groove-6
Smooth plane-7 second oil groove-8 fixed ring-9
Buffer sheet-10 motor shell-11 permanent magnet ring-12
Stator coil group-13 fan blades-14 circuit board-15
Fan outer frame-16 welding points-17
Detailed Description
Example (b): the utility model provides a stable fan bearing system of axle center, includes axle sleeve 1, flat face bearing 2, plane rotor 3, base bearing 4 and axle center 5, 4 fixed mounting of base bearing are in axle sleeve 1 for can the pivoted insert locate in base bearing 4 with flabellum fixed connection's axle center 5, fixed cover is equipped with flat face rotor 3 on the circumference lateral surface of axle center 5 keeping away from flabellum one end, and 2 fixed mounting of flat face bearing are inboard in 1 lower extreme of axle sleeve, and flat face bearing 2 supports under 3 terminal surfaces of flat face rotor flat.
During assembly, the rotating plate is fixedly arranged on the axis 5, the plane bearing 2 is arranged at the bottom of the lower end of the shaft sleeve 1, the combined axis 5 and the rotating plate are placed into the shaft sleeve 1 assembled with the plane bearing 2, then the main bearing 4 is fixedly arranged, then the coil group and the base are sequentially assembled (the assembly sequence of the coil group and the base can be changed due to different designs), and finally the fan blade group assembled with the motor shell and the permanent magnet and the axis 5 are welded to assemble the fan. This fan is because of a plane rotor 3 of fixed mounting on axle center 5, and increase the relative rotation that a plane supported, design a plane bearing 2, it forms the relative rotation mode of "T" type with base bearing 4 together, make the rotation that axle center 5 is more balanced, avoided axle center 5 and base bearing 4 friction at rotatory in-process, be favorable to improving fan life, when keeping the flabellum rotatory simultaneously, plane rotor 3 blocks in base bearing 4 lower extreme, can avoid the risk that the flabellum appears droing.
The plane bearing 2 is of a plane annular structure, a plurality of first oil grooves 6 spirally extending from the outer diameter to the inner diameter are formed on the surface of one end, facing the plane rotating sheet 3, of the plane bearing 2, and bearing oil is filled in the first oil grooves 6. The spiral oil groove is arranged on the plane bearing 2 to contain bearing oil, the oil flows from the outer diameter direction to the inner diameter direction of the groove of the plane bearing 2 when the fan operates, and the formed oil pressure pushes the rotor set outwards to float, so that the relative rotation between the plane bearing 2 and the plane rotating sheet 3 is smoother, and the friction force is small.
At least one axial end face of the main bearing 4 is a smooth plane 7 or a plane formed with a second oil groove 8, the second oil groove 8 is filled with bearing oil, and the plurality of second oil grooves 8 spirally extend from the outer diameter of the main bearing 4 to the inner diameter direction.
The width of the first oil groove 6 gradually narrows from the outer diameter of the plane bearing 2 to the inner diameter direction, and the width of the second oil groove 8 gradually narrows from the outer diameter of the main bearing 4 to the inner diameter direction.
The depths of the first oil groove 6 and the second oil groove 8 are both less than 0.2 mm. This depth ensures sufficient lubrication of the flat bearing 2 and also contributes to the reduction of the fan height.
The main bearing 4 is an oil bearing, a turning bearing or a ceramic bearing.
The main bearing 4 is fixedly arranged in the shaft sleeve 1 and has the following structure: a T-shaped hole with the inner diameter of the upper end larger than that of the lower end is formed in the inner side of the shaft sleeve 1, the main bearing 4 is inserted into the T-shaped hole, the lower end of the bearing tightly supports against a step surface formed between the two ends of the shaft sleeve 1, a fixing ring 9 is fixedly inserted in the inner side of the opening end of the shaft sleeve 1, and the fixing ring 9 tightly supports against the upper end surface of the main bearing 4. The fixed ring 9 and the step surface of the shaft sleeve 1 clamp the two ends of the main bearing 4 to realize the fixed installation of the main bearing 4.
And a buffer sheet 10 is further arranged, and the buffer sheet 10 is tightly clamped between the upper end surface of the main bearing 4 and the lower end surface of the fixing ring 9. The buffer sheet 10 is adjusted in an increasing or decreasing manner according to the structure.
A set gap is formed between the lower end of the shaft center 5 and the bottom surface of the shaft sleeve 1. The axis 5 is not contacted with the bottom surface of the shaft sleeve 1, so that the rotation friction is avoided.
The shaft center 5 and the plane rotating piece 3 are fixedly connected through interference fit or laser welding, and the plane bearing 2 is combined at the bottom of the shaft sleeve 1 through interference fit or gluing. The axle center 5 and the fan blade are fixedly connected through laser welding, during welding, the upper end of the axle center 5 forms a step structure with a contracted diameter, the central hole of the fan blade is sleeved outside the upper end of the axle center 5 and stopped on the step surface of the axle center 5, the end surface of the upper end of the axle center 5 is higher than the end surface of the upper end of the fan blade by a set distance, and then laser welding is carried out between the outer side of the circumference of the axle center 5 and the upper end of the central hole of.
Claims (10)
1. The utility model provides a fan bearing system that axle center is stable which characterized in that: including axle sleeve (1), flat bearing (2), plane rotor (3), base bearing (4) and axle center (5), base bearing fixed mounting is in the axle sleeve for can the pivoted insert with flabellum fixed connection's axle center locate the base bearing in, fixed cover is equipped with the plane rotor on the circumference lateral surface that flabellum one end was kept away from in the axle center, and flat bearing fixed mounting is inboard at axle sleeve lower extreme, and flat bearing supports under the plane rotor terminal surface flat.
2. The axis stabilized fan bearing system of claim 1, wherein: the plane bearing is of a plane annular structure, a plurality of first oil grooves (6) spirally extending from the outer diameter to the inner diameter are formed in the surface of one end, facing the plane rotating sheet, of the plane bearing, and bearing oil is filled in the first oil grooves.
3. The axis stabilized fan bearing system of claim 2, wherein: at least one axial end face of the main bearing is a smooth plane (7) or a plane formed with second oil grooves (8), bearing oil is filled in the second oil grooves, and the second oil grooves spirally extend from the outer diameter to the inner diameter of the main bearing.
4. The axis stabilized fan bearing system of claim 3, wherein: the width of the first oil groove gradually narrows from the outer diameter of the plane bearing to the inner diameter direction, and the width of the second oil groove gradually narrows from the outer diameter of the plane bearing to the inner diameter direction.
5. The axis stabilized fan bearing system of claim 3, wherein: the depths of the first oil groove and the second oil groove are both less than 0.2 mm.
6. The axis stabilized fan bearing system of claim 1, wherein: the main bearing is an oil bearing, a turning bearing or a ceramic bearing.
7. The axis stabilized fan bearing system of claim 1, wherein: the main bearing is fixedly arranged in the shaft sleeve and has the following structure: a T-shaped hole with the inner diameter of the upper end larger than that of the lower end is formed in the inner side of the shaft sleeve, the main bearing is inserted into the T-shaped hole, the lower end of the bearing tightly supports against a step surface formed between two ends of the shaft sleeve, a fixing ring (9) is fixedly inserted into the inner side of the opening end of the shaft sleeve, and the fixing ring tightly supports against the upper end surface of the main bearing.
8. The axis stabilized fan bearing system of claim 7, wherein: and a buffer sheet (10) is also arranged and is tightly clamped between the upper end surface of the main bearing and the lower end surface of the fixing ring.
9. The axis stabilized fan bearing system of claim 1, wherein: a set gap is formed between the lower end of the axis and the bottom surface of the shaft sleeve.
10. The axis stabilized fan bearing system of claim 1, wherein: the axis is fixedly connected with the plane rotating piece through interference fit or laser welding, and the plane bearing is combined at the bottom of the shaft sleeve through interference fit or gluing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920735085.6U CN210050094U (en) | 2019-05-22 | 2019-05-22 | Fan bearing system with stable axis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920735085.6U CN210050094U (en) | 2019-05-22 | 2019-05-22 | Fan bearing system with stable axis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210050094U true CN210050094U (en) | 2020-02-11 |
Family
ID=69382398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920735085.6U Active CN210050094U (en) | 2019-05-22 | 2019-05-22 | Fan bearing system with stable axis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210050094U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067771A (en) * | 2019-05-22 | 2019-07-30 | 苏州顺福利智能科技有限公司 | The stable fan spindle bearing system in axle center |
-
2019
- 2019-05-22 CN CN201920735085.6U patent/CN210050094U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067771A (en) * | 2019-05-22 | 2019-07-30 | 苏州顺福利智能科技有限公司 | The stable fan spindle bearing system in axle center |
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