CN204664173U

CN204664173U - Plastic bearing

Info

Publication number: CN204664173U
Application number: CN201520372041.3U
Authority: CN
Inventors: 不公告发明人
Original assignee: Nie Ningning
Current assignee: Nie Ningning
Priority date: 2015-06-02
Filing date: 2015-06-02
Publication date: 2015-09-23
Anticipated expiration: 2025-06-02

Abstract

The utility model discloses a kind of plastic bearing, employing engineering plastics are made, comprise two bearing inner sleeves be detachably connected, after bearing inner sleeve described in two connects, inner circumferential side forms the passage matched with axle, and the outer circumferential side of bearing inner sleeve described in two rotates respectively and is provided with bearing outer ring; The outer end of described bearing inner sleeve forms radially outward extending spacing shoulder, and the inner of described bearing outer ring forms and radially extends internally and the belled part of matching with described bearing inner sleeve.The utility model overall construction design is reasonable, erection, change convenient, have wear-resisting, not easily to get rusty and light advantage, and fabricating cost is cheap, is suitable for applying.

Description

Plastic bearing

Technical field

The utility model relates to technical field of bearings, is specifically related to a kind of plastic bearing.

Background technique

Bearing major function is supported mechanical solid of rotation, for reducing the mechanical load friction factor in mechanical transmission course.Traditional bearing mostly is metallic material and makes, the bearing adopting metallic material to make has the advantages such as high temperature resistant, wear resistance is good, but there is following defect in metal bearing: (1) metal bearing needs the metal of at substantial, can cause the serious waste of metallic material, processing cost is higher; (2) although metal bearing in use has high temperature resistant and anti abrasive advantage, and metallic material gets rusty easily, and in use easily there is the corrosion of chemical formulation in metallic material, thus cause bearing deformation and damage.

Model utility content

Technical problem to be solved in the utility model is to provide a kind of reasonable in design, low processing cost, wear-resisting, light, the plastic bearing that not easily gets rusty.

For solving the problems of the technologies described above, the technical solution of the utility model is: plastic bearing, employing engineering plastics are made, comprise two bearing inner sleeves be detachably connected, after bearing inner sleeve described in two connects, inner circumferential side forms the passage matched with axle, and the outer circumferential side of bearing inner sleeve described in two rotates respectively and is provided with bearing outer ring; The outer end of described bearing inner sleeve forms radially outward extending spacing shoulder, and the inner of described bearing outer ring forms and radially extends internally and the belled part of matching with described bearing inner sleeve.

As preferred technological scheme, the periphery of described bearing inner sleeve is arranged with antilock packing ring between described spacing shoulder and described belled part.

As preferred technological scheme, the mutual clamping of bearing inner sleeve described in two.

As the improvement to technique scheme, the inner periphery wall of bearing inner sleeve described in one of them forms draw-in groove, the inner inner circle wall of bearing inner sleeve described in another forms the collar matched with described draw-in groove.

The utility model, by adopting technique scheme, has following beneficial effect:

(1) each parts can adopt engineering plastics injection molding making respectively, are beneficial to saving material, cut down finished cost; (2) bearing inner sleeve removably connects mutually, and erection, replacing are conveniently; (3) problem along with extending locking between bearing inner sleeve and axle service time and bringing can be avoided by described antilock packing ring, ensure that bearing outer ring rotates flexibility, without the need to lubrication, easy to maintenance; (4) plastic bearing itself has good, the ageing-resistant characteristic of chemical resistance, have wear-resisting, not easily get rusty, light advantage, when being particularly suitable for being under external environment for a long time, as used on telescopic door roller.

Accompanying drawing explanation

The following drawings is only intended to schematically illustrate the utility model and explain, does not limit scope of the present utility model.Wherein:

Fig. 1 is the plan view of the utility model embodiment;

Fig. 2 is the plan view of Fig. 1;

Fig. 3 be in Fig. 1 A-A to cross-sectional view;

Fig. 4, Fig. 5 are the structural representations of bearing inner sleeve.

In figure: 10,20-bearing inner sleeve; 11-passage; 12, the spacing shoulder of 22-; 13-draw-in groove; 23-collar; 30,40-bearing outer ring; 31,41-belled part; 50, the antilock packing ring of 60-.

Embodiment

Below in conjunction with drawings and Examples, set forth the utility model further.In the following detailed description, the mode only by illustrating describes some one exemplary embodiment of the present utility model.Undoubtedly, those of ordinary skill in the art can recognize, when not departing from spirit and scope of the present utility model, can revise by various different mode to described embodiment.Therefore, accompanying drawing is illustrative with being described in essence, instead of for limiting the protection domain of claim.

As shown in Figures 1 to 5, plastic bearing, adopt engineering plastics (as polyoxymethylene, also known as match just) make, comprise two bearing inner sleeves be detachably connected 10,20, bearing inner sleeve 10 described in two connects rear inner circumferential side and forms the passage 11 matched with axle, and the outer circumferential side of bearing inner sleeve 10,20 described in two rotates respectively and is provided with bearing outer ring 30,40; The outer end of described bearing inner sleeve 10,20 forms radially outward extending spacing shoulder 12,22 respectively, the inner of described bearing outer ring 30,40 forms the belled part 31,41 radially extended internally respectively, and described belled part 31,41 and being formed with bearing inner sleeve Spielpassung is respectively rotationally connected; The periphery of described bearing inner sleeve 10 is arranged with antilock packing ring 50 between described spacing shoulder 12 and described belled part 31, and the periphery of described bearing inner sleeve 20 is arranged with antilock packing ring 60 between described spacing shoulder 22 and described belled part 41.Antilock packing ring 50,60 can avoid the problem along with extending locking between bearing inner sleeve and axle service time and bringing, and ensures that bearing outer ring rotates flexibility, without the need to lubrication, easy to maintenance.

In the present embodiment, in order to install assembling, change conveniently, described in two, the mutual clamping of bearing inner sleeve 10,20, can certainly adopt other modes that removably connects.With reference to figure 4 and Fig. 5, the inner periphery wall of bearing inner sleeve 10 described in one of them forms draw-in groove 13, the inner inner circle wall of bearing inner sleeve 20 described in another forms the collar 23 matched with described draw-in groove 13.Wherein, bearing inner sleeve, bearing outer ring, antilock packing ring all can molding and forming, and not only processing and fabricating is convenient, is beneficial to saving raw material simultaneously, cuts down finished cost.

The foregoing is only the schematic embodiment of the utility model, and be not used to limit scope of the present utility model.Such as, also can not arrange antilock packing ring between bearing inner sleeve and bearing outer ring, structure can be made more to simplify, and fabricating cost is lower; Any those skilled in the art, equivalent variations done under the prerequisite not departing from design of the present utility model and principle and amendment, all should belong to the scope of the utility model protection.

Claims

1. plastic bearing, employing engineering plastics are made, it is characterized in that: comprise two bearing inner sleeves be detachably connected, after bearing inner sleeve described in two connects, inner circumferential side forms the passage matched with axle, and the outer circumferential side of bearing inner sleeve described in two rotates respectively and is provided with bearing outer ring; The outer end of described bearing inner sleeve forms radially outward extending spacing shoulder, and the inner of described bearing outer ring forms and radially extends internally and the belled part of matching with described bearing inner sleeve.

2. plastic bearing as claimed in claim 1, is characterized in that: the periphery of described bearing inner sleeve is arranged with antilock packing ring between described spacing shoulder and described belled part.

3. plastic bearing as claimed in claim 1, is characterized in that: the mutual clamping of bearing inner sleeve described in two.

4. plastic bearing as claimed in claim 3, is characterized in that: the inner periphery wall of bearing inner sleeve described in one of them forms draw-in groove, the inner inner circle wall of bearing inner sleeve described in another forms the collar matched with described draw-in groove.