CN202082287U

CN202082287U - Multi-collar bearing with reducing interlayer collar

Info

Publication number: CN202082287U
Application number: CN2011201971620U
Authority: CN
Inventors: 赵忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-02
Filing date: 2011-06-02
Publication date: 2011-12-21
Anticipated expiration: 2021-06-02

Abstract

The utility model relates to a bearing, in particular to a rolling bearing with an interlayer collar. The multi-collar bearing with a reducing interlayer collar comprises an inner sleeve, an outer sleeve and the interlayer collar, wherein rolling bodies are respectively installed among the inner sleeve, the outer sleeve and the interlayer collar; the rolling body is arranged in a track slot cut on the interlayer collar; the interlayer collar adopts a reducing structure; and the rolling bodies at the inner layer and the outer layer generate forward pull force to the interlayer collar in the radial direction. The bearing adopts the reducing interlayer collar, and track slots arranged at the inner and outer peripheries of the interlayer collar are axially staggered in setting so that the axial projections of the inner track slot and the outer track slot of the collar are intersected or staggered, therefore, the bearing can change the vertical shear and bending pressure in radial point contact of the inner and the outer layer of rollers with the interlayer collar to the radial forward pull of the interlayer collar. The change of mechanics structure can greatly improve the bearing capacity of the interlayer collar, and effectively control the stability of the interlayer of the bearing in rotating at a high speed.

Description

Many lassos bearing of band reducing mesosphere lasso

Technical field

The utility model relates to bearing, particularly the rolling bearing of many lassos.

Background technique

In the prior art, though many lassos bearing can significantly reduce frictional resistance, but: it generally can only be used for the equipment or the shimmy equipment of the opposite running of both direction simultaneously, or be used for that rotating speed is lower, large-scale roller that the axle center does not require stability uses, taste off-centre and reduce the resistance of start with benefit, because many lassos bearing exists fatal defective when turning round under high slightly speed or big load condition, for example:

(1) the two-layer roller of existing many lassos bearing is with the circular orbit line, the mesosphere lasso is clipped in the middle of the two-layer roller, the diameter difference of its two-layer roller track is big, the center of gravity difference is also big, lasso is in operation does not have the control of axle or shell, and they are subjected to axially, radially reaching the effect of complicated comprehensive moment in the play of two-layer or multilayer roller, can take place irregular shimmy, along with this shimmy meeting of increasing of speed develops into strong resonance, thereby quickened the damage of bearing;

(2) longitudinal section of the mesosphere lasso in many lassos bearing is straight plate load-carrying construction, the mesosphere lasso has been subjected in the two-layer rolling element simultaneously, the vertical alternating pressure of outer fulcrum, stress concentrates on the fulcrum, cause mesosphere lasso fragmentation easily, similarly be with the plank two ends prop the back with the hammer pound the centre equally easy pound disconnected, so present many lassos of slow-speed of revolution bearing that adopts, its mesosphere lasso is all thick especially, to increase bearing capacity, still, so not only increased the diameter of bearing, it is poor to have strengthened center of gravity, also because of the inertia reason of mesosphere lasso gravity, the pendulum shake is got up easier to be out of hand, endangers bigger.

Summary of the invention

In view of the deficiencies in the prior art, the utility model provides a kind of many lassos bearing with reducing mesosphere lasso, adopts reducing mesosphere lasso, change many rollers layer bearing mesosphere lasso mechanical structure, need not to increase thickness, can significantly improve bearing capacity and high stability, and increase the service life.

The technological scheme that the utility model is adopted for achieving the above object is: many lassos bearing of band reducing mesosphere lasso, comprise interior cover, overcoat and mesosphere lasso, between interior cover, overcoat and the mesosphere lasso rolling element is housed respectively, rolling element places in the rail slot of offering on the lasso of mesosphere, the mesosphere lasso adopts variable-diameter structure, and inside and outside two-layer rolling element radially produces forward pulling force to the mesosphere lasso.

Described rail slot is divided into inner orbit groove and outside track groove, and the axis projection of inner orbit groove and outside track groove intersects or be staggered.

The inner orbit groove of described reducing mesosphere lasso is that angle contacts rail slot, zanjon ball roller track groove, cylindrical roller rail slot, spherical roller rail slot, tapered roller rail slot, annulus roller track groove or wherein any two kinds of mixing roller track grooves with the outside track groove.

Rolling element that described mesosphere lasso is inside and outside and rail slot are that axial symmetrical span is arranged, and the quantity of the rolling element rail slot on its inside and outside circumference equates.

Respectively be provided with two row's rail slots on the inside and outside circumference of described mesosphere lasso, wherein two inner orbit grooves lay respectively at the outside of two outside track grooves, and the inner orbit pitch of grooves is greater than the outside track pitch of grooves, and symmetric arrangement forms the double row bearing of band reducing mesosphere lasso.

Respectively be provided with two row's rail slots on the inside and outside circumference of described mesosphere lasso, wherein two outside track grooves lay respectively at the outside of inner orbit groove, and the outside track pitch of grooves is greater than the inner orbit pitch of grooves, and symmetric arrangement forms the double row bearing of band reducing mesosphere lasso.

The utility model bearing adopts reducing mesosphere lasso, compare with common bearing and to have significant beneficial effect: in the lasso of mesosphere, each two-layer rolling element that is provided with and the rail slot setting of axially staggering on the excircle, the axis projection of rolling element and rail slot is intersected or staggered, it can with in, the vertical shear of outer two-layer roller centered interbed lasso radial point contact and bending pressure, change into mesosphere lasso forward pulling force radially, the change of this mechanical structure can increase substantially the bearing capacity of mesosphere lasso; Can reduce the diameter of many rollers layer bearing significantly, the center of gravity that makes two-layer roller is near consistent, and it is stressed to form angle, controls the stability of bearing mesosphere when high speed rotating effectively; Can make surface friction drag (or friction factor) the trend conformity formula or the basically identical of each roller interlayer, this is to make each lasso energy run-in synchronism of bearing or basic synchronization running, realizes one of essential condition that reduces friction factor.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is a ferrule arrangement schematic representation in mesosphere among Fig. 1.

Fig. 3 is the utility model double row bearing structural representation.

Among the figure: 1, interior cover, 2, the mesosphere lasso, 3, overcoat, 4, the inner orbit groove, 5, the outside track groove, 6, rolling element.

Embodiment

Below in conjunction with specific embodiment the utility model is described in further detail, but the utility model is not limited to specific embodiment.

Embodiment 1:

Many lassos bearing of band reducing mesosphere lasso as shown in Figure 1, cover 1 in comprising, overcoat 3 and mesosphere lasso 2, interior cover 1, between overcoat 3 and the mesosphere lasso 2 rolling element 6 is housed respectively, rolling element 6 places in the inner orbit groove of offering on the lasso of mesosphere 4 and outside track groove 5, the variable-diameter structure that mesosphere lasso 2 adopts as shown in Figure 2, the axis projection of inner orbit groove and outside track groove intersects or is staggered, in, outer two-layer rolling element radially produces forward pulling force to the mesosphere lasso, wherein in the lasso of mesosphere, respectively be provided with two row's rail slots on the excircle, two inner orbit grooves lay respectively at the outside of two outside track grooves, the inner orbit pitch of grooves is greater than the outside track pitch of grooves, and symmetric arrangement forms the double row bearing of band reducing mesosphere lasso.

Embodiment 2

Basic structure is identical with embodiment, the rolling element that mesosphere lasso 2 is inside and outside, and inner orbit groove 4 and outside track groove 5 are that axial symmetrical span is arranged, the quantity of the rolling element 6 on its inside and outside circumference equates, respectively be provided with two row's rail slots on the inside and outside circumference of mesosphere lasso, two inner orbit grooves lay respectively at the outside of two outside track grooves, and the inner orbit pitch of grooves is greater than the outside track pitch of grooves, and symmetric arrangement forms the double row bearing of band reducing mesosphere lasso.

The rolling element rail slot of the inside and outside circumference setting of reducing described in the utility model mesosphere lasso is angle contact rail slot, zanjon ball roller track groove, cylindrical roller rail slot, spherical roller rail slot, tapered roller rail slot, annulus roller track groove or their mixing roller track groove, to adapt to the needs of dissimilar roller bearings.Also be applicable to simultaneously respectively to be provided with many row's rail slots on the inside and outside circumference of mesosphere lasso, form the Multistage bearing of band reducing mesosphere lasso.

Claims

1. be with many lassos bearing of reducing mesosphere lasso, comprise interior cover, overcoat and mesosphere lasso, between interior cover, overcoat and the mesosphere lasso rolling element is housed respectively, rolling element places in the rail slot of offering on the lasso of mesosphere, it is characterized in that: the mesosphere lasso adopts variable-diameter structure, and inside and outside two-layer rolling element radially produces forward pulling force to the mesosphere lasso.

2. many lassos bearing of band reducing according to claim 1 mesosphere lasso is characterized in that: the axis projection of described inner orbit groove and outside track groove intersects or is staggered.

3. many lassos bearing of band reducing according to claim 1 mesosphere lasso is characterized in that: rolling element that described mesosphere lasso is inside and outside and rail slot are that axial symmetrical span is arranged, and the quantity of the rolling element rail slot on its inside and outside circumference equates.

4. according to many lassos bearing of the arbitrary described band reducing of claim 1-3 mesosphere lasso, it is characterized in that: the rail slot of the inside and outside circumference setting of described reducing mesosphere lasso is angle contact rail slot, zanjon ball roller track groove, cylindrical roller rail slot, spherical roller rail slot, tapered roller rail slot, annulus roller track groove or their mixing roller track groove.

5. according to many lassos bearing of the arbitrary described band reducing of claim 1-3 mesosphere lasso, it is characterized in that: respectively be provided with two row's rail slots on the inside and outside circumference of described mesosphere lasso, wherein two inner orbit grooves lay respectively at the outside of two outside track grooves, the inner orbit pitch of grooves is greater than the outside track pitch of grooves, and symmetric arrangement forms the double row bearing of band reducing mesosphere lasso.

6. according to many lassos bearing of the arbitrary described band reducing of claim 1-3 mesosphere lasso, it is characterized in that: respectively be provided with two row's rail slots on the inside and outside circumference of described mesosphere lasso, wherein two outside track grooves lay respectively at the outside of inner orbit groove, the outside track pitch of grooves is greater than the inner orbit pitch of grooves, and symmetric arrangement forms the double row bearing of band reducing mesosphere lasso.