CN2558797Y

CN2558797Y - Improved dynamic bearing

Info

Publication number: CN2558797Y
Application number: CN 02230335
Authority: CN
Inventors: 廖英桐; 李茂碷
Original assignee: Individual
Current assignee: International Straight Line Science & Technology Co Ltd
Priority date: 2002-04-03
Filing date: 2002-04-03
Publication date: 2003-07-02
Anticipated expiration: 2012-04-03

Abstract

The utility model relates to an improved hydrodynamic bearing, comprising a mandrel, an outer ring, a blade seat and a motor. The utility model is characterized in that: the surface of the mandrel is provided with a spiral groove device, the inner hole of the outer ring with a wedge device and the bottom with a mandrel catch. Pressure difference is generated to drive fluid between the outer ring and the mandrel to flow when the mandrel rotates by the spiral groove device arranged at the surface of the mandrel and the circulating fluid is forced to go between the outer ring and the mandrel due to the wedge impacted mode so that the outer ring does not rub against the mandrel so as to prolong the service life of the shaft and durability thereof under high rotating speed.

Description

Improved hydraulic bearing

Technical field

The utility model relates to a kind of improved hydraulic bearing.

Background technique

General known external circular type fan spindle bearing (as shown in Figure 1) often causes the wearing and tearing of axle A and outer shroud B because of the friction of face contact type, and then reduces the working life and the maximum speed of bearing, produces great noise simultaneously; Therefore, for reaching fan under high rotating speed, also can increase the purpose in its working life simultaneously, the place of the technical difficulties that solves for this case creator institute desire.

Commonly use disappearance:

1, causes the wearing and tearing of axle and outer shroud with the friction of face contact type.

2, reduce the working life and the maximum speed of bearing.

When 3, turning round, produce great noise.

Summary of the invention

The shortcoming the utility model that exists at prior art provides a kind of improved hydraulic bearing.

The technical solution adopted in the utility model is: a kind of improved hydraulic bearing, formed by axle, outer shroud, blade seat and motor seat; It is characterized in that: this axle surface is provided with the helical groove device, and the endoporus of outer shroud is provided with Wedge device, and the bottom is provided with wholeheartedly axle bumper sheet.

This outer shroud endoporus is provided with Wedge device, and fluid is crowded between outer shroud and axle.

Outer ring surface is provided with groove arrangement.

A kind of improved hydraulic bearing is characterized in that: the source of this fluid is to be guided via the inlet of the helical groove device of live spindle by the through hole that blade is done, and is discharged by the through hole of motor seat.

The path of this fluid is entered by the helical groove inlet of live spindle, and via the groove arrangement of outer ring surface or endoporus, guiding is circled round changes the groove arrangement inlet.

The utility model utilizes the axle surface to be provided with the helical groove device, when making the axle rotation, the fluid that produces pressure difference and drive between outer shroud and axle flows, and utilize fluid in the mode forced circulation of wedge shape packing by between outer shroud and axle, the effect that does not rub with the axle in reaching outer shroud and rotating, and then increase the working life of bearing and the serviceability under the high rotating speed.

Advantage of the present utility model:

1, helical groove is installed on rotation and the time can produces pressure difference, does one and circulates and drive fluid.

2, Wedge device has the urgent effect of squeezing of wedge shape, therefore forces fluid to cross axle and outer interannular, improves its lubrication effect.

3, fluid in axle with outside interannular do and circulate, axle and outer shroud are not rubbed, and then improve the working life of its fan.

4, has practicability.

5, has value on the industrial circle.

Description of drawings

Fig. 1 commonly uses facing and side sectional view of fan;

Fig. 2 is a sectional view of the present utility model;

Fig. 3 is the combination schematic representation of the utility model axle and outer shroud;

Fig. 4 is an actuation cycle sectional view of the present utility model;

Fig. 5 looks up and side cutaway view after the utility model axle and the outer shroud combination;

Fig. 6 is the combination schematic representation of another axle of the present utility model and outer shroud;

Fig. 7 is another actuation cycle sectional view of the utility model;

Fig. 8 looks up and side cutaway view for outer shroud among Fig. 7 and axle.

Embodiment

The utility model is described in further detail below in conjunction with drawings and the specific embodiments.

At first see also Fig. 2 and shown in Figure 3, the utility model is made up of an axle 1, an outer shroud 2, a

blade seat

4 and 5 of motor seats;

Wherein, this blade seat 4 forms a containing space with motor seat 5, be provided with an outer shroud 2 and an axle 1 in this containing space, its axle 1 is provided with helical groove device 11, in the time of can rotating for axle 1, the fluid that produces pressure difference and drive 2 of axle 1 and outer shrouds flows, the endoporus of its outer shroud 2 is provided with Wedge device 21, can be packed between axle 1 and the outer shroud 2 for fluid, rub with the axle 1 in avoiding outer shroud and rotating, to improve the working life of axle 1 and outer shroud, the containing space bottom is provided with wholeheartedly axle bumper sheet 3, can be really with axle 1 location.

See also Fig. 3 again, Fig. 4 and shown in Figure 5, when axle 1 is done the dynamic pressure endless form (E represents with code name), its fluid is that the through hole 41 by blade seat 4 flows in 2 of axle 1 and outer shrouds, and flow into by the inlet a of the helical groove device 11 on the axle 1, helical groove device 11 on its axle 1 produces a pressure difference in rotation, the drive fluid flows, and nationality is by the Wedge device 21 of the endoporus of outer shroud 2, the fluid that makes produces the crowded effect d of wedge shape and compels to squeeze in 2 of axle 1 and outer shrouds in Wedge device 21, axle 1 in avoiding outer shroud 2 and rotating produces friction, its fluid via helical groove device 11 after, outlet b by helical groove device 11 flows out, and, make it to form one and circulate by shown in through hole 51 discharges (its circulation of fluid path is as figure number c) of motor seat 5; So, not only can make fluid between fan, do one and circulate, and can avoid the friction of axle and outer shroud, and then improve the working life of its fan.

And for example Fig. 6, Fig. 7 and shown in Figure 8, the utility model can be provided with outer shroud surface groove device 22 in the periphery of outer shroud 2 in addition, and this outer shroud surface groove device 22 can be done one for fluid and circulate in blade seat 4 and motor seat 5 formed spaces; Therefore when axle 1 is done the dynamic pressure endless form (F represents with code name), its fluid flows into axle via the ingress e of the helical groove device 11 of axle 1, and nationality is by the Wedge device 21 of outer shroud 2, it is crowded in 2 of axle 1 and outer shrouds to make fluid produce wedge shape in Wedge device 21, and discharge by the outlet port f of helical groove device 11, fluid after it is discharged via 22 guidings of outer shroud surface groove device, makes fluid do one in blade seat 4 and motor seat 5 formed spaces and circulates (its circulation of fluid path such as figure number g represent) again.

The utility model is provided with groove arrangement in axle, the pressure difference that produces when nationality is rotated by axle, and the fluid of drive fluid, and utilize the Wedge device of outer shroud endoporus to compel the mode of squeezing with wedge shape, make fluid by between outer shroud and axle, can reach between outer shroud and axle and not rub, and then improve the working life of outer shroud and axle.

In sum, the utility model is being broken through under the previous technical pattern, really reached the effect that institute's desire is promoted, and also non-be familiar with this skill person institute easily full of beard and, moreover, open before the utility model application, the progressive that it had, practicability meet the regulation of Patent Law, now file an application in accordance with the law.

Claims

1, a kind of improved hydraulic bearing is made up of axle, outer shroud, blade seat and motor seat; It is characterized in that: this axle surface is provided with the helical groove device, and the endoporus of outer shroud is provided with Wedge device, and the bottom is provided with wholeheartedly axle bumper sheet.

2, improved hydraulic bearing as claimed in claim 1 is characterized in that: this outer shroud endoporus is provided with Wedge device, and fluid is crowded between outer shroud and axle.

3, improved hydraulic bearing as claimed in claim 1, it is characterized in that: outer ring surface is provided with groove arrangement.