CN2350582Y

CN2350582Y - Self-lubricating bearing device for small motor

Info

Publication number: CN2350582Y
Application number: CN 98218485
Authority: CN
Inventors: 洪银树
Original assignee: Sunonwealth Electric Machine Industry Co Ltd
Current assignee: Sunonwealth Electric Machine Industry Co Ltd
Priority date: 1998-08-19
Filing date: 1998-08-19
Publication date: 1999-11-24
Anticipated expiration: 2008-08-19

Abstract

The utility model relates to a self-lubricating bearing device for a small motor, which is used for solving the problem of oil leakage. The self-lubricating bearing device for a small motor comprises a self-lubricating bearing, a stator base, and a rotor. The utility model is characterized in that the stator base is provided with a shaft pipe, the self-lubricating bearing is provided with a shaft hole and arranged in the shaft pipe of the stator base, the wall between the shaft hole and a rotating shaft is at least provided with one slot, and the rotor is provided with a rotating shaft which rotates in the shaft hole of the self-lubricating bearing. When the rotor rotates, lubricating oil in the shaft hole flows to the other end of the self-lubricating bearing from one end of the self-lubricating bearing and flows back from the slot of the shaft hole to form circulation to avoid oil leakage. The utility model is used for motors.

Description

The self-lubricating bearing device of miniature motor

The utility model relates to bearing-lubricating device, refers in particular to the miniature motor bearing-lubricating device.

Existing several the patent applications of existing motor self-lubricating bearing for example, have one, and its oil ring has a mesopore, be placed in the positioning shaft, and a sheathed self-lubricating bearing on the positioning shaft; This oil ring is in the rounded cross section of the periphery in hole, and extend to form flange in the circular cross-section outside, the oil ring diameter makes positioning shaft penetrate the bearing axis hole greater than bearing, and curved flanges is back to the lubricant oil guiding of circular cross-section and the sucking-off of self-lubricating bearing friction institute in the self-lubricating bearing; Another part, its central siphon can closely be nested with for self-lubricating bearing, for the flabellum axle bed deeply, self-lubricating bearing is made by Cuprum alloy or other oil storage ring bodies, support the rotation of flabellum wheel shaft by an axis hole, can disengage lubricant oil by pore, its external diameter has straight trough and tight driving fit at stator seat central siphon internal diameter, Vane wheel is provided with the magnet ring that can make changes of magnetic field with the stator seat coil, flabellum is rotated, and Vane wheel axle bed end face has an annular groove, and annular groove bottom land and notch form the acute angle of potential difference, annular groove gos deep into to stator seat central siphon internal diameter, and becomes discontiguous minimum range with the central siphon internal diameter; Also have one, its oil-impregnated bearing central authorities support the flabellum axle to run through rotation with an aperture, rotating shaft with contain bearing and become to connect airtight and close, under the high speed turn, can form the pressure of similar pumping action, the lubricant oil in the bearing is escaped to a support seat direction, reduce the life-span of motor, in a word, several above patents are as self-lubricating bearing, though all be to prevent that the lubricant oil in the bearing runs off, structurally made some designs, but actual effect is imperfect yet.

The purpose of this utility model provides a kind of self-lubricating bearing device of stopping the miniature motor that lubricant oil leaks.

The purpose of this utility model is achieved in that the self-lubricating bearing device of miniature motor, and it comprises a self-lubricating bearing, a stator seat and a rotor; It is characterized in that: stator seat is provided with a central siphon, and self-lubricating bearing is provided with an axis hole and places in the central siphon of stator seat, and axis hole and rotating shaft partition are provided with at least one conduit, and rotor is provided with one and places the rotating shaft of rotating in the axis hole of self-lubricating bearing.

Above-mentioned design, when rotor rotation, the lubricant oil in the axis hole flow to the self-lubricating bearing the other end by self-lubricating bearing one end, and is refluxed by the conduit of axis hole, forms circulation, reaches to prevent the effect that leaks.

Be described further again below by drawings and Examples.

Fig. 1 the utility model embodiment one exploded perspective view;

Fig. 2 the utility model embodiment two self-lubricating bearing stereograms;

Fig. 3 the utility model embodiment two self-lubricating bearing plan views;

Plan view is cutd open in Fig. 4 the utility model embodiment two combinations;

Fig. 5 is the 5-5 plan view among Fig. 4;

Fig. 6 the utility model embodiment two exploded perspective views;

Fig. 7 the utility model embodiment two assembled sectional views;

Fig. 8 is the 4-4 sectional view among Fig. 5;

Fig. 9 the utility model embodiment three exploded perspective views;

Figure 10 the utility model embodiment three assembled sectional views;

Figure 11 is 11 position partial enlarged drawings among Figure 10;

Figure 12 the utility model self-lubricating bearing user mode action schematic representation.

Shown in Fig. 1-5: the utility model comprises a self-lubricating bearing 1, a stator seat 2 and a rotor 3; It is characterized in that: stator seat 2 is provided with a central siphon 21, and self-lubricating bearing 1 is provided with an axis hole 11 and places in the central siphon 21 of stator seat 2, and axis hole 11 is provided with at least one conduit 12 with rotating shaft 31 partitions, and rotor 3 is provided with one and places the rotating shaft 31 of rotating in the axis hole 11 of self-lubricating bearing 1.Like this, axis hole 11 is supported rotating shaft 31 rotations, and rotating shaft 31 is fixing by C type clasp cover fastener 32.Wherein, this conduit 12 is located at axis hole 11 wall internal surfaces.Wherein, the section of this conduit 12 is triangle, circular arc or square.

Shown in Fig. 6-8: wherein, a self-lubricating bearing 41 is arranged in the stator seat 4, self-lubricating bearing 41 has axis hole 42, and the rotating shaft 51 of rotor 5 is positioned at axis hole 42 and makes position rotating; Rotor 5 supports seat 50 for rotating shaft 51 combinations by a center, this kind combination can in all sorts of ways fixing or with one-body molded affixed, rotating shaft 51 terminals have locating slot 52 by positioning element 53 snappings such as C type rings, in order to place restrictions on rotating shaft 51 in axis hole 42 position rotating and prevent to come off.Wherein, rotating shaft 51 walls are provided with conduit 54.Wherein, the conduit 54 of this rotating shaft 51 connects continuous conduit to the other end circlewise and for rotating shaft 51 1 ends.Wherein, the conduit 54 of rotating shaft 51 walls form in the rotating shaft 51 discontinuous more than two sections or two sections.This conduit 54 and can be left hand screw or right-hand screw groove.And lubricant oil formation is circulated, and more can gather for small powder, make the rotating shaft 51 and the surface of contact of self-lubricating bearing 41 can not have fines or powder, make rotor 5 runnings more smooth and easy.

Shown in Fig. 9-12: wherein, self-lubricating bearing 6 is fixed in the central siphon 71 of stator seat 7, and the axis hole 61 of self-lubricating bearing 6 is supported rotating shaft 81 position rotating of rotor 8, and rotating shaft 81 is fixing by fastener components such as C type ring 83 with snap groove 82, and rotating shaft 81 is positioned.Wherein, this conduit 62 is located at axis hole 61 wall outer surfaces, and the end face that extends to self-lubricating bearing 6 at least communicates with this axis hole 61.Wherein, these self-lubricating bearing 6 set conduits 62 end or biend of extending to self-lubricating bearing 6 communicates with this axis hole 61.Wherein, the two ends of this self-lubricating bearing 6 are provided with packing ring 84, and make fluid become a continuous or circuit closed access.Like this, self-lubricating bearing 6 oil be can be recycled, keep the more permanent function of profit certainly, both unlikely to stator seat 7 pollutions, can prolong the life-span of motor again.

Claims

1, the self-lubricating bearing device of miniature motor, it comprises a self-lubricating bearing, a stator seat and a rotor; It is characterized in that: stator seat is provided with a central siphon, and self-lubricating bearing is provided with an axis hole and places in the central siphon of stator seat, and axis hole and rotating shaft partition are provided with at least one conduit, and rotor is provided with one and places the rotating shaft of rotating in the axis hole of self-lubricating bearing.

2, self-lubricating bearing device as claimed in claim 1 is characterized in that: wherein, this conduit is located at axis hole wall internal surface.

3, self-lubricating bearing device as claimed in claim 2 is characterized in that: wherein, the section of this conduit is triangle, circular arc or square.

4, self-lubricating bearing device as claimed in claim 1 is characterized in that: wherein, the rotating shaft wall is provided with conduit.

5, self-lubricating bearing device as claimed in claim 4 is characterized in that: wherein, the conduit of this rotating shaft connects continuous conduit to the other end circlewise and for rotating shaft one end.

6, self-lubricating bearing device as claimed in claim 4 is characterized in that: wherein, the conduit of rotating shaft wall form in the rotating shaft discontinuous more than two sections or two sections.

7, self-lubricating bearing device as claimed in claim 1 is characterized in that: wherein, this conduit is located at axis hole wall outer surface, and the end face that extends to self-lubricating bearing at least communicates with this axis hole.

8, self-lubricating bearing device as claimed in claim 7 is characterized in that: wherein, an end or biend that the set conduit of this self-lubricating bearing extends to self-lubricating bearing communicate with this axis hole.

9, self-lubricating bearing device as claimed in claim 7 is characterized in that: wherein, the two ends of this self-lubricating bearing are provided with packing ring, and make fluid become a continuous or circuit closed access.