CN201382076Y

CN201382076Y - Plastic bearing

Info

Publication number: CN201382076Y
Application number: CN200820171549U
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: 2010-01-13
Anticipated expiration: 2018-12-31

Abstract

The utility model discloses a plastic bearing which comprises an outer plastic element. The plastic bearing consists of the outer plastic element, an outer ring, a retainer, an inner ring and a bearing ball through being combined, wherein the outer ring is positioned inside the outer plastic element; the outer side wall of the outer ring is provided with an annular groove I; the outer ring is fixedly embedded in the plastic element through the annular groove I; the inner ring is embedded in the retainer; the retainer and the inner ring are matched through a gap; a ball hole is arranged on the retainer; the bearing ball is arranged in the ball hole; and all of the outer ring, the retainer, the inner ring and the bearing ball are made of plastic materials. After the adoption of the structure, the bearing ball rolls in the ball hole of the retainer through being clamped in the annular groove of the inner ring and the outer ring, the friction of the bearing and the consumption of the bearing ball are greatly reduced, and the heat generating conditions is reduced. When the bearing performance is ensured, the production cost is lowered through being compared with that of the metal bearing. In addition, because the self lubricating performance of the plastic materials is good, the consumption of lubricating agents in the use process is reduced, the use cost is lowered, and simultaneously the environment production effect is more obvious. The bearing made of high-polymer plastics has ideal corrosion resistant performance.

Description

A kind of plastic bearing

Technical field

The utility model is specifically related to a kind of plastic 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 sum, the full-metallic bearing exists the processing cost height, needs to add a large amount of oiling agents in the use, easily by the defective of chemical corrosion, therefore in the last few years, along with developing rapidly of materials science, adopted the research of the bearing of nonmetallic material also to obtain development fast.

Goal of the invention

Goal of the invention of the present utility model, be at existing metal bearing processing cost height, 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 plastic bearing, adopts this bearing, when having guaranteed the metal bearing performance, reduced to produce rising this, reduced the use of oiling agent, simultaneously resist chemical performance excellence.

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

A kind of plastic bearing, comprise outer working of plastics, described plastic bearing is by outer working of plastics and the outer ring that is positioned at it, retainer, inner ring and bearing ball constitute, the outer side wall of described outer ring is provided with annular groove I, described outer ring fixedly is nested in the described outer working of plastics by described annular groove I, described inner ring is nested in the described retainer, is Spielpassung between described retainer and the described inner ring, and described retainer is provided with the hole of bead, bearing ball is located in the described hole of bead, described outer ring, retainer, inner ring and bearing ball all adopt plastic materials to make.

Further, the outer wall of described inner ring is provided with annular groove II.

Further, described bearing ball is a spheroid, the diameter of described bearing ball matches with cross section, described hole of bead diameter of a circle, in the scrolling realization of annular groove II and fixedlying connected of described retainer that are positioned on the inner ring outer wall, the sphere of described bearing ball all contacts with the internal face of described annular groove II and outer ring described inner ring by described bearing ball.

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

Further, described outer ring, retainer, inner ring, bearing ball all adopt high-performance polymerization plastics to make.Further, described outer ring, retainer, inner ring, bearing ball all adopt the mode of integral molded plastic to be processed into.

The beneficial effects of the utility model are:

1, the utility model adopts said structure, inside and outside retainer, be arranged with inner ring and outer ring, bearing ball is clipped in the hole of bead of retainer in the annular groove of Internal and external cycle rolls, greatly reduce the friction of bearing and the loss of ball, reduced the heating phenomenon of bearing.

2, the utility model adopts plastic materials to make, when having guaranteed bearing performance, compared to metal bearing, 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 a structural representation of the present utility model;

Embodiment

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

As shown in Figure 1, a kind of plastic bearing of the utility model, a kind of plastic bearing, comprise outer working of plastics 1, described plastic bearing is by outer working of plastics 1 and be positioned at its outer ring 2, retainer 4, and inner ring 3 and bearing ball 5 constitute, the outer side wall of described outer ring 2 is provided with annular groove I 21, described outer ring 2 fixedly is nested in the described outer working of plastics 1 by described annular groove I 21, and described inner ring 2 is nested in the described retainer 4, is Spielpassung between described retainer 4 and the described inner ring 3, described retainer 4 is provided with the hole of bead, bearing ball 5 is located in the described hole of bead, described outer ring 2, retainer 4, inner ring 3 and bearing ball 5 all adopt plastic materials to make

In the utility model, the outer wall of described inner ring 3 is provided with annular groove II.

Described bearing ball is a spheroid, the diameter of described bearing ball 5 matches with cross section, described hole of bead diameter of a circle, in the scrolling realization of annular groove II and fixedlying connected of described retainer that are positioned on inner ring 3 outer walls, the sphere of described bearing ball 5 all contacts with the internal face of described annular groove II and outer ring described inner ring 3 by described bearing ball 5.

In reality processing, the outer ring 2 of a kind of plastic bearing of the utility model, inner ring 3, retainer 4 and bearing ball 5 all adopt the mode of integral molded plastic to be processed into, after the machine shaping, described bearing ball 5 is placed in the hole of bead on the described retainer 4, and the retainer 4 that will install ball 5 is nested between described inner ring 3 and the outer ring 2, because the internal face of described outer ring 2 is a cambered surface, therefore can fixedly secure bearing ball 5 in described bearing and be implemented between the internal face of annular groove II and outer ring by retainer 4 on roll, thereby realize the using effect of bearing.

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 plastic bearing, comprise outer working of plastics (1), it is characterized in that: described plastic bearing is by outer working of plastics (1) and be positioned at its outer ring (2), retainer (4), inner ring (3) and bearing ball (5) constitute, the outer side wall of described outer ring (2) is provided with annular groove I (21), described outer ring (2) fixedly is nested in the described outer working of plastics (1) by described annular groove I (21), described inner ring (3) is nested in the described retainer (4), between described retainer (4) and the described inner ring (3) is Spielpassung, described retainer (4) is provided with the hole of bead, bearing ball (5) is located in the described hole of bead, described outer ring (2), retainer (4), inner ring (3) and bearing ball (5) all adopt plastic materials to make.

2, a kind of plastic bearing according to claim 1 is characterized in that: the outer wall of described inner ring (3) is provided with annular groove II.

3, a kind of plastic bearing according to claim 1, it is characterized in that: described bearing ball (5) is a spheroid, the diameter of described bearing ball (5) matches with cross section, described hole of bead diameter of a circle, in the scrolling realization of annular groove II and fixedlying connected of described retainer (4) that are positioned on inner ring (3) outer wall, the sphere of described bearing ball (5) all contacts with the internal face of described annular groove II and outer ring (2) described inner ring (3) by described bearing ball (5).

4, according to claim 1 or 3 described a kind of plastic bearings, it is characterized in that: the described hole of bead equidistantly is arranged on the described retainer (4), top, the described hole of bead is provided with opening, and the wall top of the retainer (4) between described any two hole of beads is equipped with bayonet socket.

5, a kind of plastic bearing according to claim 1 is characterized in that: described outer ring (2), retainer (4), inner ring (3), bearing ball (5) all adopt high-performance polymerization plastics to make.

6, a kind of plastic bearing according to claim 1 is characterized in that: described outer ring (2), retainer (4), inner ring (3), bearing ball (5) all adopts the mode of integral molded plastic to be processed into.