CN201326647Y

CN201326647Y - Bearing retainer

Info

Publication number: CN201326647Y
Application number: CNU2008201715482U
Authority: CN
Inventors: 朱卫国; 陈桂花
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-31
Filing date: 2008-12-31
Publication date: 2009-10-14
Anticipated expiration: 2018-12-31

Abstract

The utility model discloses a bearing retainer, which comprises a frame body which is in a circular ring shape, wherein the wall surface of the circular-ring shaped frame body is further provided with ball holes, and the number of the ball holes is at least bigger and equal to the integer of three, and the ball holes are equally arrayed on the wall surface of a retainer in the equidistant mode. The ball holes are similar to round shapes, the top portions of the ball holes are provided with openings, and the wall surfaces of the retainers between any two ball holes are provided with bayonets. The diameters of the ball holes have clearance fit with the diameters of a bearing ball which is equipped. The bayonets of the ball holes are in reversed ladder shapes. The bearing retainer is made of high polymeric plastic materials or nylon materials, and with the structure, the bearing balls are led to be clamped in ring-shaped grooves with the inner circle and the outer circle to roll in the ball holes of the retainers, and friction of the bearing and consumption of the balls are greatly lowered, and the heating phenomenon of the bearing is lowered.

Description

A kind of retainer

Technical field

The utility model is specifically related to the retainer that uses on a kind of bearing.

Background technique

Shaft drive conduct and chain-driven, the gear transmission and the band transmission kind of drive arranged side by side, in industrial production and daily life, having a wide range of applications. can the output power power of device output of shaft drive is converted into the power of rotation, and is therefore at motor, very general on motor and the machining apparatus.

Though it is accurate that shaft drive has transmission, kinetic equation loss is little, occupy little space, the plurality of advantages that the direction of power can be changed, still, because in having the equipment of transmission shaft, axle can all move at axial-radial in theory, therefore need carry out spacing and support to axle,, make its power that outputs power device output effectively be converted into rotation with the axial and radial motion of restriction transmission shaft.Bearing is the part of a back shaft, and the rotation that it can leading axle is limited to the motion of axle in the rotation, also can bear the part that axle is gone up idle running simultaneously; Moreover, bearing can be converted into pivoting friction with sliding friction, thereby has reduced the kinetic equation loss in the equipment.Comprehensive above each point, bearing is for the stability that adopts driven off by shaft machinery, transmission accuracy, working life, each side such as Security and even noise all has important effect, and is therefore underway always for the research of optimizing bearing performance raising bearing quality.

Traditional bearing mostly is metallic material and makes, the bearing that adopts metallic material to make, and high temperature resistant, wear resistance is all better, but metal bearing exists following defective:

At first, metal bearing need expend a large amount of metals, because bearing is the common part in the machinery, annual use amount is very huge, all adopt metallic material to carry out processing and fabricating, can cause seriously expending of metallic material, today this problem soaring day by day in metal price is just particularly outstanding.

Secondly; metal bearing in use must be lubricated, and the oiling agent of promptly annotating in metal bearing is with the friction between ball and bearing body in the minimizing bearing; use not only consume significant of a large amount of oiling agents in the annual industry, also environmental protection has been produced serious threat simultaneously.

The 3rd, though metal bearing has high temperature resistant and anti abrasive advantage, the chemical property of metallic material is comparatively active usually, and the corrosion of chemical formulation in use takes place the bearing that adopts metallic material to make easily, causes bearing deformation and damage.

In the present widely used bearing, generally all contain retainer, the acting as of retainer:

1. retainer is equally spaced with rolling element, is distributed on raceway and gets on the circumference when preventing work and run foul of each other and rub between rolling element;

2. guiding and drive rolling element roll on correct raceway;

3. in the divergence type bearing, rolling element and a lasso are combined, come off to prevent rolling element.Rolling bearing is when work, owing to sliding friction causes bearing heating and wearing and tearing, under the high temperature operation condition, the effect of inertial centrifugal force has aggravated friction, wearing and tearing and heating especially, can cause retainer burn or fracture when serious, cause the bearing cisco unity malfunction.Therefore, the material that requires retainer is except that having certain intensity, and is also must thermal conductivity good, friction factor is little, wear resistance good, impact toughness is strong, density is less and linear expansion coefficient and rolling element are close.In addition, pressing cage need stand complicated punching press distortion, also requires material to have good processing properties.

The retainer that present stage uses; mostly being metallic material greatly makes; owing to need the hole of bead of placing bearing ball on the retainer; the way of therefore many employing metal cuttings is processed; not only cost is higher; and the metal fillings that processing produces is difficult to cleaning; cause frictional heat through regular meeting, not only influenced the stability of bearing working, and frictional heat also can cause bearing temperature too high; be damaged easily; working life is lower, simultaneously, and the poor-performing of metal retainer resist chemical; by the chemical lubricants corrosion-deformation in the bearing, cause damage easily.

Goal of the invention

Goal of the invention of the present utility model, be at metal retainer processing cost height in the existing bearing, need to add a large amount of chemical lubricants in the use, the defective that resistance to chemical corrosion is relatively poor provides a kind of retainer, adopt this retainer, when having realized the metal bearing performance, reduced cost of production, reduced the use of oiling agent, bearing capacity is preferably arranged simultaneously, resist chemical performance excellence.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of retainer comprises support body, and described support body is circular, also is provided with the hole of bead on the wall of described circular support body, and the quantity in the described hole of bead is at least more than or equal to three integer, and the described hole of bead is arranged on the wall of retainer with equidistant mode equilibrium.

Further, the described hole of bead is a near round shape, and top, the described hole of bead is provided with opening, is equipped with bayonet socket on the wall of the retainer between described any two hole of beads.

Further, the aperture in the described hole of bead cooperates with the diametric clearance of the bearing ball of assembling.

Further, described hole of bead bayonet socket for trapezoidal.

Improved, described retainer adopts high polymeric plastic material to make.

Improved, described retainer adopts nylon material to make.

The beneficial effects of the utility model are:

1, retainer adopts said structure, bearing ball is clipped in the hole of bead of retainer in the annular groove of Internal and external cycle rolls, and greatly reduces the friction of bearing and the loss of ball, has reduced the heating phenomenon of bearing.

2, the utility model adopts plastic materials to make, when having guaranteed bearing performance, compared to the metal retainer, greatly reduce cost of production, and, reduced the consumption of oiling agent in using because the self-lubricating property of plastic materials is better, not only reduced cost of use, also environmental protection more simultaneously, the bearing that adopts high polymer plastic to make, corrosion resistance are also comparatively desirable.

Description of drawings

Fig. 1 is the structural representation of retainer of the present utility model;

Fig. 2 is the sectional view of the section of a hole of bead part of the utility model.

Embodiment

Be further detailed below in conjunction with accompanying drawing with to the present invention:

As shown in Figure 1, 2, a kind of retainer of the utility model, comprise support body 1, described support body 1 is circular, also be provided with the hole of bead 11 on the wall of described circular support body 1, the quantity in the described hole of bead 11 is at least more than or equal to three integer, and the described hole of bead 11 is arranged on the wall of retainer support body 1 with equidistant mode equilibrium.The described hole of bead 11 is a near round shape, and 11 tops, the described hole of bead are provided with opening, is equipped with bayonet socket 12 on the wall of the retainer support body 1 between described any two hole of beads 11.The aperture in the described hole of bead 11 cooperates with the diametric clearance of the bearing ball of assembling, the bayonet socket 12 on the described hole of bead 11 for trapezoidal.Described retainer support body 1 adopts high polymeric plastic material or nylon material to make.

Need to prove that embodiment only is to explanation of the present utility model and non-limiting, adopt the utility model essence scheme and the change carried out, still in protection domain of the present utility model.

Claims

1, a kind of retainer, comprise support body (1), it is characterized in that: described support body (1) is for circular, also be provided with the hole of bead (11) on the wall of described circular support body (1), the quantity in the described hole of bead is at least more than or equal to three integer, and the described hole of bead (11) are arranged on the wall of retainer support body (1) with equidistant mode equilibrium.

2, a kind of retainer according to claim 1 is characterized in that: the described hole of bead (11) are near round shape, and top, the described hole of bead (11) is provided with opening, is equipped with bayonet socket (12) on the support body wall of the retainer between described any two hole of beads.

3, a kind of retainer according to claim 1 and 2 is characterized in that: the aperture of the described hole of bead (11) cooperates with the diametric clearance of the bearing ball of assembling.

4, a kind of retainer according to claim 1 and 2 is characterized in that: the cross section of the described hole of bead (11) bayonet socket (12) is for trapezoidal.

5, a kind of retainer according to claim 1 is characterized in that: described retainer support body (1) adopts high polymeric plastic material to make.

6, a kind of retainer according to claim 1 is characterized in that: described retainer support body (1) adopts nylon material to make.