CN2379639Y

CN2379639Y - Bearing with rolling contact

Info

Publication number: CN2379639Y
Application number: CN 99231858
Authority: CN
Inventors: 李晓勤
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-13
Filing date: 1999-06-13
Publication date: 2000-05-24
Anticipated expiration: 2009-06-13

Abstract

The utility model discloses a bearing with rolling contact. The utility model is composed of an inner ring, an outer ring, a medium ring, a transmission medium, a holder and a medium ring drive device, wherein the medium ring is positioned between the inner ring and the outer ring. The medium ring is supported by the bearing, and meanwhile, the medium ring is connected with the medium ring drive device. The medium ring drive device can be any one of a gear drive, a friction drive and an electromagnetic drive. The bearing with rolling contact can be a sliding bearing with rolling contact, or a rolling bearing with rolling contact, or a thrust force bearing with rolling contact, or the combination of two bearings among three bearings. The utility model references the principle of overlapping relative motion, and can satisfy the requirements of a rotary mechanism with high rotary speed, high load and high accuracy.

Description

Bearing with rolling contact

The utility model relates to a kind of bearing, relates in particular to a kind of Multistage bearing.

The present bearing that generally uses, all are single-stages, can not satisfy the requirement of high rotating speed, high loading, high-precision rotating machinery, the pneumatic bearing of current usefulness, the speed of also having only per minute several ten thousand to change, and load is extremely low, and the load of the synthetic diamond bearing of usefulness is very high at present, but price is very expensive, and rotating speed still can not satisfy the requirement of high speed rotating mechanism; Patent Office of the People's Republic of China discloses a kind of " Multistage bearing " with notification number CN2077059U, it mainly by inner ring, outer ring, several centre circles and than in the number of turns Duo one driving medium group, and the retainer identical with driving medium group number form, and its objective is in order to reduce the pivot friction coefficient, to bear higher rotating speed.But there is following shortcoming in its design:

1, the principle of relative movement is not amplified in overlapping relative movement or the multistage relative movement, rotation situation at different levels is unclear, can not improve rotating speed effectively;

2, its centre circle is designed to single point supporting, and each circle all can freely swing or rotate, and retainer can be destroyed because of each circle swing, thereby cause coming off of driving medium, increased the incidence rate of major accident greatly;

3, centre circle does not have drive unit, can not realize the rotation that it needs, and can only rely on frictional force to drive, and its rotation is an arbitrariness, can not control.

The purpose of this utility model is to provide a kind of bearing that can satisfy high rotating speed, high loading, high-precision rotating machinery requirement.

The purpose of this utility model is achieved in that

The utility model encircles drive unit by interior ring, outer shroud, Jie's ring, driving medium, retainer and Jie and forms, the ring that is situated between is a hollow shaft, in being supported on by four bearings of forming by the driving medium group between ring and the outer shroud, and link to each other with the ring that is situated between and drives to be situated between to encircle by the ring drive unit that is situated between and rotate.

Wherein, be situated between four bearings of ring of supporting can be rolling bearing, adjustable sliding bearing or two thrust-bearings or bearing with cross roller composite bearing, also can be the wherein combinations of two kinds of bearings.

The drive unit that encircles that is situated between can be gear device or electromagnetic actuator device or friction drive device.

Below in conjunction with drawings and Examples model utility is described in further detail:

Fig. 1 is the transverse section sectional view of slip Bearing with rolling contact of the present utility model;

Fig. 2 is the transverse section sectional view of mixing Bearing with rolling contact of the present utility model;

Fig. 3 is the transverse section sectional view of rolling Bearing with rolling contact of the present utility model;

Fig. 4 is the longitudinal plane sectional view of thrust Bearing with rolling contact of the present utility model;

Fig. 5 is the longitudinal plane sectional view that Jie of the present utility model encircles electromagnetic actuator device and rolling Bearing with rolling contact;

Fig. 6 is the longitudinal plane sectional view of Jie's ring gear drive unit of the present utility model and slip Bearing with rolling contact;

Fig. 7 is that Jie of the present utility model encircles friction drive device and the longitudinal plane sectional view that mixes Bearing with rolling contact.

Embodiment 1: the slip Bearing with rolling contact of ring by gear drive is situated between:

The slip Bearing with rolling contact comprises inside and outside two sliding bearings, ring 3, outer shroud 2, ball 4, baffle ring and Jie's ring gear drive unit are formed by being situated between, interior sliding bearing promptly be situated between ring 3,, the gear device of Jie's ring 3 is made up of live axle 6, gear 7, live axle 6 fuses with gear 7, and gear 7 is meshing with each other with the gear 14 that is fixed on the ring 3 that is situated between.

Embodiment 2: the rolling Bearing with rolling contact of ring by Electromagnetic Drive is situated between:

The rolling Bearing with rolling contact is made up of interior ring 1, outer shroud 2, be situated between ring 3, ball 4, retainer and electromagnetic actuator device, the ring 3 that is situated between is hollow shafts, be supported between interior ring 1 and the outer shroud 2 by four rolling bearings 5, electromagnetic actuator device is made up of stator 8, rotor 9, stator case 10, stator 8 is fixed on the body by stator case 10, rotor 9 is fixed on the ring 3 that is situated between, and stator 8 is corresponding mutually with rotor 9.

Embodiment 3: the mixing Bearing with rolling contact of ring by friction driving is situated between:

Mixing Bearing with rolling contact is encircled friction drive device and is formed by interior ring 1, outer shroud 2, be situated between ring 3, ball 4, retainer and Jie, the ring 3 that is situated between is hollow shafts, be supported between interior ring 1 and the outer shroud 2 by two rolling bearings 5 and two sliding bearings 5 respectively, friction drive device is made up of negative pulley wheel 11, v belt 12, drive pulley 13, live axle 6, negative pulley wheel 11 fuses with the ring 3 that is situated between, drive pulley 13 fuses with live axle 6, and v belt 12 is socketed on drive pulley 13 and the negative pulley wheel 11.

Embodiment 4: the thrust Bearing with rolling contact of ring by gear drive is situated between:

The thrust Bearing with rolling contact is made up of interior ring 1, outer shroud 2, be situated between ring 3, ball 4, retainer and gear device, the ring 3 that is situated between is hollow shafts, it also is a sliding bearing, encircle on 1 in being placed in, relatively rotate with interior ring 1, between ring 1 and the outer shroud 2, gear device was made up of live axle 6, gear 7 in two rolling bearings 5 were supported on the ring 3 that is situated between, live axle 6 fuses with gear 7, and gear 7 is meshing with each other with the ring 3 that is situated between.

Working principle of the present utility model is as follows:

Bearing with rolling contact described in the utility model is that the principle of relative movement is amplified in the overlapping relative motion principle, two adjustable sliding bearings or sliding bearing and rolling bearing or two rolling bearings or two thrust-bearings is combined into the bearing of an overlapping rotation.With the rolling Bearing with rolling contact is example, and ring 1 is a rev/min for the rotating speed of the ring 3 that is situated between in supposing; Ring 3 rotating speeds for outer shroud 2 that are situated between are b rev/min, and interior ring 1 is consistent with the sense of rotation of the ring 3 that is situated between, in ring 1 rotating speed with respect to outer shroud 2 be r rev/min of kind, if the ring 3 that is situated between remains static with outer shroud 2, then axle and interior ring 1 are a rev/min with respect to the rotating speed of body; Ring 3 per minutes have changeed a commentaries on classics if be situated between, and then axle and interior ring 1 are (a+1) rev/min with respect to the rotating speed of body; Ring 3 per minutes have changeed the b commentaries on classics if be situated between, and then axle and interior ring 1 are b (a+1) with respect to the rotating speed of body, and promptly r=b (a+1) rev/min,

For example r=100 * (150+1)=15100 (rev/min)

Again for example r=1000 * (1500+1)=1501000 (rev/min)

This shows: interior ring 1 and the axle that fuses with interior ring 1, commentaries on classics scooter with respect to the body that fuses with outer shroud 2 is very high, and between interior ring 1 and Jie's ring 3, the rotating speed that is situated between between ring 3 and the outer shroud 2 is but all very low, though increased by one group of gap, but can do the gap very for a short time because of speed is very low, thereby improve the precision and the rigidity of Bearing with rolling contact.So the utility model can satisfy high rotating speed, high loading, the high-precision requirement of high speed rotating mechanism, simultaneously, manufacture cost is also cheap relatively.

Claims

1, Bearing with rolling contact, comprise interior ring (1), outer shroud (2), driving medium (4), retainer, it is characterized in that between interior ring (1) and outer shroud (2), having set up a hollow shaft, ring (3) promptly is situated between, the bearing (5) that the ring (3) that is situated between is made up of four driving medium groups is supported between interior ring (1) and the outer shroud (2), and the ring (3) that is situated between links to each other with the ring drive unit that is situated between.

2, Bearing with rolling contact according to claim 1 is characterized in that described bearing (5) can be rolling bearing, adjustable sliding bearing, bearing with cross roller composite bearing, thrust-bearing, also can be the wherein combination of two kinds of bearings.

3,, it is characterized in that it can be gear device or electromagnetic actuator device or friction drive device that described Jie encircles drive unit according to claim 1,2 described Bearing with rolling contact.

4, Bearing with rolling contact according to claim 3 is characterized in that gear device is made up of live axle (6), gear (7), and live axle (6) fuses with gear (7), and gear (7) is meshing with each other with the ring (3) that is situated between.

5, Bearing with rolling contact according to claim 3, it is characterized in that electromagnetic actuator device is made up of stator (8), rotor (9), stator case (10), stator (8) is fixed on the body by stator case (10), rotor (9) is fixed on the ring (3) that is situated between, and stator (8) is corresponding mutually with rotor (9).

6, Bearing with rolling contact according to claim 3, it is characterized in that friction drive device is made up of negative pulley wheel (11), v belt (12), drive pulley (13), live axle (6), negative pulley wheel (11) fuses with the ring (3) that is situated between, drive pulley (13) fuses with live axle (6), and v belt (12) is socketed on drive pulley (13) and the negative pulley wheel (11).