CN2560779Y

CN2560779Y - Motor bearing device

Info

Publication number: CN2560779Y
Application number: CN 02272481
Authority: CN
Inventors: 周育政; 张金宏
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2002-08-08
Filing date: 2002-08-08
Publication date: 2003-07-16
Anticipated expiration: 2012-08-08

Abstract

A motor bearing device is applied in a motor. The motor bearing device comprises a bearing group and a rotating shaft; wherein, the bearing group is composed of a bearing frame, the first bearing made of oil/copper materials, and the second bearing and the third bearing, which are made of ceramic material. A groove is respectively opened at both ends of the bearing frame to arrange the second bearing and the third bearing, and the first bearing is positioned between the second bearing and the third bearing. The three bearings are tightly assorted with the bearing frame and are cut with the equal-diameter shaft holes in the center. A groove is opened at an end of the rotating shaft and can be inserted with an anti-release fastener. The rotating shaft is inserted at the rotor center of the motor and is inserted in the bearing group. The rotating shaft and the bearing group rotate and are assorted with each other. The bearing group is arranged in the shaft sleeve of the motor and is close fitted with the shaft sleeve. Because the bearing group comprises the bearings made of two materials, saying oil/copper and ceramics, the motor bearing device not only is abrasion-proof and but also can be sufficiently lubricated.

Description

The motor bearing device

[technical field]

The utility model is about a kind of motor bearing device, especially refers to a kind of motor bearing device that comprises the bearing that a plurality of different materials make.

[technical background]

Electric motor is the important component part of electromechanical equipment, the quality of motor quality has often determined the working life of whole electromechanical equipment, the motor operations instability will influence entire equipment and run well, and motor bearing is the key that influences motor quality and working stability.Especially in the miniature motor that uses in equipment such as computer fan, blower, the motor bearing design plays a part very important to service life, the noise reduction of entire equipment.

Existing fan motor is to adopt ball bearing at first, but the ball bearing cost is higher and noise is bigger.Afterwards, industry adopted the self-lubricating bearing of being made by metallic material, and motor 1 as shown in Figure 1, this motor 1 comprise a rotor 2, a rotating shaft 3, a self-lubricating bearing 4, an axle sleeve 5, a stator 6 and a rotating shaft anticreep fastener 7.This stator 6 is set in axle sleeve 5 outsides, and this self-lubricating bearing 4 is installed in these axle sleeve 5 inside and closely cooperates with it.These rotating shaft 3 one ends are installed on this rotor 2, and this anticreep fastener 7 is fastened on the other end of rotating shaft 3, and this rotating shaft 3 is rotatable to be located in the axis hole 8 of this self-lubricating bearing 4.Yet this kind self-lubricating bearing generally can be relatively poor because of the materials limitations wear resistance, and working life is also shorter.Therefore, industry adopts the self-lubricating bearing of stupalith to improve the wear resistance of motor bearing.But the self-lubricating bearing greasy property of stupalith is relatively poor, and influences the stability that motor bearing rotates.

[summary of the invention]

The purpose of this utility model is to provide a kind of motor bearing device, and especially a kind of noise is low, the motor bearing device of long service life and stable work in work.

The purpose of this utility model is achieved through the following technical solutions: the utility model motor bearing device, and it is applied to a motor, and this motor bearing device comprises a bearing pack and a rotating shaft.This bearing pack comprises clutch shaft bearing and two second bearing and the 3rd bearings made from stupalith that a bearing framework, the oily copper product of a usefulness are made.These bearing framework two ends are offered a groove respectively and are installed second bearing and the 3rd bearing respectively, and this clutch shaft bearing is loaded on second bearing and the 3rd bearing neutral position.These three bearings all closely cooperate with this bearing framework and its central authorities offer the identical axis hole of diameter respectively.This rotating shaft is a stupalith, and the one end has a hemisphere introduction part, offers a groove near this introduction part, wherein can block and establish an anticreep fastener.This rotating shaft is installed in the rotor central authorities of this motor and is plugged in this bearing pack.This rotating shaft cooperates with this bearing pack and rotates.This bearing pack is placed in the axle sleeve of this motor and closely cooperates with it.

By technique scheme as can be seen, the utility model motor bearing device mainly contains following advantage: owing to contain the bearing of making by stupalith in this bearing pack, so this motor bearing device has improved wear resistance, has prolonged working life, reduced cost and has reduced noise; This bearing pack also contains the bearing of being made by oily copper product, so this motor bearing device can lubricate well, has improved the stability that bearing rotates.

[description of drawings]

The utility model will be further described in conjunction with mode of execution with reference to the accompanying drawings.

Fig. 1 is existing motor assembling view.

Fig. 2 is a three-dimensional exploded view of using the motor of the utility model motor bearing device.

Fig. 3 is the stereogram of the utility model motor bearing device.

Fig. 4 is the cooperation sectional view of the utility model motor bearing device.

Fig. 5 is an assembling view of using the motor of the utility model motor bearing device.

[embodiment]

See also Fig. 2 to Fig. 5, a kind of motor bearing device 10, it is applied on the motor 12, and this motor bearing device 10 comprises a bearing pack 20 and a rotating shaft 14.

This bearing pack 20 comprises second bearing 26 and the 3rd bearing 28 that clutch shaft bearing 32 that a bearing framework 21, is made by oily copper product and two is made by stupalith.These bearing framework 21 1 ends are offered one first groove 24 to place second bearing 26, and its other end is offered one second groove 30 to place the 3rd bearing 28.This clutch shaft bearing 32 is embedded the neutral position in this bearing framework 21 inner two grooves 24 and 30.These

bearings

26,32 and 28 all are cylindrical bodys and closely cooperate with this bearing framework 21 that its central authorities offer the identical axis hole of

diameter

27,34 and 29 respectively.This bearing 14 interted these

axis holes

27,34 and 29 successively and cooperates with these

bearings

26,28,32 and rotate.This bearing pack 20 is placed in the corresponding axis bearing sleeve and closely cooperates with it.

Above-mentioned oily copper product by the powder metallurgy immersion oil of copper base, iron-based, copper iron-based after sintering curing form, stupalith comprises aluminium oxide, zirconium oxide, silicon nitride etc.

This rotating shaft 14 is a stupalith, and the one end has a hemisphere introduction part 16, offers a groove 18 near this introduction part 16, and this groove 18 can block establishes a rotating shaft anticreep fastener 19.

This motor 12 also comprises a rotor 40, a stator 42 and an axle sleeve 44.

During assembling, this rotating shaft 14 is fixed on this rotor 40 central authorities, these clutch shaft bearing 32 devices are in these bearing framework 21 neutral positions, these second bearing, 26 devices are adjacent with this clutch shaft bearing 26 in first groove 24 of this bearing framework 21, the 3rd bearing 28 is installed in second groove 30 of this bearing framework 21, these anticreep fastener 19 levels are shelved on the edge of these axle sleeve 44 bottom centre's grooves, then this bearing pack 20 are installed to these axle sleeve 44 inside and also closely cooperate with it.This stator 42 is set in this axle sleeve 44 outsides.This rotating shaft 14 is inserted in the

axis hole

27,34 and 29 of these three

bearings

26,32 and 28, this rotating shaft anticreep fastener 19 is fastened under the help of the hemisphere introduction part 16 of rotating shaft 14 in this groove 18, and this anticreep fastener 19 can prevent that this rotor 40 and rotating shaft 14 are subjected to centrifugal action and fly out when rotating.After motor 12 starts, this rotating shaft 14 can rotate this motor 12 with bearing pack 20 no-floats reposefully, because this bearing pack 20 adopts the bearing of oily copper and two kinds of materials of pottery, so this bearing means 10 was not only wear-resisting but also can sufficient lubrication, noise is low, working stability and long service life.

In the above-described embodiment, clutch shaft bearing 32 can exchange with the material of second, third bearing 26,28 in this bearing pack 20, promptly this clutch shaft bearing 32 adopts stupalith, and second, third bearing 26,28 adopts oily copper product, can reach identical effect equally.

In this mode of execution, its middle (center) bearing adopts oily copper product or stupalith, and it only is comparatively outstanding example, can analogize, and this oil copper product can be replaced with other metallic material.

Claims

1. motor bearing device, it is applied to a motor, this motor bearing device comprises a rotating shaft and a bearing pack, it is characterized in that: this bearing pack comprises a bearing framework and the clutch shaft bearing and second bearing made by different materials, this clutch shaft bearing and second bearing are embedded in this bearing framework, and this rotating shaft is plugged in this bearing pack.

2. motor bearing device as claimed in claim 1 is characterized in that: this rotating shaft one end has an introduction part, offers a groove near this introduction part, and an anticreep fastener can be snapped in this groove.

3. motor bearing device as claimed in claim 1 is characterized in that: this rotating shaft is made by stupalith.

4. motor bearing device as claimed in claim 3 is characterized in that: this bearing pack further comprises one the 3rd bearing.

5. motor bearing device as claimed in claim 4, it is characterized in that: a groove is offered at these bearing framework two ends respectively, this second bearing and the 3rd bearing are placed on respectively in this two groove and closely cooperate with this bearing framework, and this clutch shaft bearing is embedded the neutral position at inner two grooves of this bearing framework.

6. motor bearing device as claimed in claim 5 is characterized in that: three bearings are the cylindrical body that central authorities offer a same big or small axis hole in this bearing pack, and this rotating shaft is passed three bearings of these three axis holes and this successively and cooperated.

7. motor bearing device as claimed in claim 6 is characterized in that: this clutch shaft bearing is made by oily copper product, and this second bearing and the 3rd bearing are made by stupalith.

8. motor bearing device as claimed in claim 6 is characterized in that: this clutch shaft bearing is made by stupalith, and this second bearing and the 3rd bearing are made by oily copper product.

9. as claim 7 or 8 described motor bearing devices, it is characterized in that: this oil copper product is that sintering curing forms behind the powder metallurgy immersion oil of copper base, iron-based, copper iron-based.