CN200940636Y

CN200940636Y - Steel-plastic slide bearing

Info

Publication number: CN200940636Y
Application number: CN 200620045270
Authority: CN
Inventors: 周引春; 吕四金
Original assignee: SHUANGFEI NON-OIL BEARING Co Ltd ZHEJIANG PROV
Current assignee: Zhejiang SF Oilless Bearing Co., Ltd.
Priority date: 2006-08-29
Filing date: 2006-08-29
Publication date: 2007-08-29
Anticipated expiration: 2016-08-29

Abstract

The utility model discloses a plastic steel sliding bearing whose purpose is to provide a plastic steel sliding bearing with advantages of simple producing process, high PV value, good self-lubricating effect, long service life and exemption of sintering the copper powder. The utility model which at least comprises a steel layer and a wear-resistant plastic adhered on the surface of the steel layer is characterized in that a plurality of column shaped or truncated cone shaped or frustum shaped nails are arranged between the steel layer and the plastic layer, the whole nails are embedded into the plastic layer thus to form a mutual meshed connection surface, the surface of the utility model is the plastic layer. The structure can melt the wear-resistant plastic on the surface of the steel layer through sintering, the protruding nails on the surface of the steel layer are wholly embedded into the plastic layer which makes the plastic meshed with the surface of the steel layer firmly thus to have a extremely strong adhesive force, whether being produced or used, the plastic is prevented from detaching with the metal layer; the utility model can exempt the process of sintering the copper powder, save copper powder, decrease the energy consumption and product cost and is also good to the environment protection and the guarantee of the quality of the the products.

Description

Steel is moulded sliding bearing

Technical field

The utility model relates to a kind of part of composite material, relates in particular to a kind of sliding bearing that is attached with the laminated composite material of wear-resisting plastic layer on steel.

Background technique

Metallic material, macromolecular material and stupalith etc. all possess some good points on usability and are not enough, and the application area of oneself is respectively arranged.Along with science and technology development, also more and more higher to the requirement of material, use single material to satisfy various requirement and seem more and more difficult and uneconomical.Therefore steel, copper occur, moulded three layers of compound material, this material is used to make the sliding bearing of oil-free lubrication,---surface of steel plate shop copper powder---sintering---shop, surface nonmetal antifriction material---sintering---rolling---smoothing that the general technology of making sliding shaft sleeve is: the cutting steel plate, reach the requirement of predetermined thickness, again by rolling into the sliding bearing part.Because can produce wilfully or ripe partially situation in the copper powder sintering process, the pore size of copper powder layer is wayward, and the situation of nonmetal antifriction material and surface of steel plate poor adhesive force can take place, the phenomenon that nonmetal antifriction material is refuted from surface of steel plate fall.Because through high temperature sintering, the former metallographic structure of steel plate changes, reduce mechanical property, it is wrinkling also can to produce steel plate.When high temperature sintering, consume a large amount of electric energy again, and because the continuous rise in price of copper, manufacture cost is higher.

Summary of the invention

The purpose of this utility model is to provide that a kind of manufacturing process is simple, PV value height, self-lubricating property are good, long service life, the steel that can exempt the copper powder sintering are moulded sliding bearing.

In order to reach above-mentioned requirements, the technological scheme that steel is moulded sliding bearing is: comprise the steel layer at least and attached to the wear-resisting plastic layer of steel laminar surface, it is characterized in that the steel laminar surface between steel layer and plastic layer is shaped on the nail of column or round platform or terrace with edge shape projection, whole nail is embedded in the plastic layer fully, form the junction surface of mutual interlock, the surface is wear-resisting plastic layer.The nail of described round platform or terrace with edge can be that the top of nail becomes reversal of the natural order of things shape round platform or terrace with edge greater than the root that nail is connected with the steel layer.

Mould the sliding bearing that the nail pin joins according to the steel of said structure manufacturing, wear-resisting plastics can be melted to the steel laminar surface by sintering, the nail of steel laminar surface projection is embedded in the plastic layer fully, make plastics be engaged in the steel laminar surface securely, has extremely strong adhesion, no matter all can not produce separating of steel layer and plastic layer in processing or in using; Can exempt the technology of sintered copper powder, save copper powder, reduce energy consumption, product cost, be beneficial to the assurance of environmental protection and quality of product again.

Description of drawings

Fig. 1 is shaped on evenly distributed, the stagger plan view of nail of cylindrical protrusion in the ranks on the steel plate;

Fig. 2 is the A-A sectional drawing of Fig. 1;

Fig. 3 is that the surface attachment of Fig. 1 has the plane sliding bearing plan view that is shaped on recessed oily cave on its outer surface of plastic layer;

Fig. 4 is the B-B sectional drawing of Fig. 3;

Fig. 5 is that the plane sliding bearing blank rolls into the axle sleeve sliding bearing plan view that is attached with plastic layer in the endoporus;

Fig. 6 is the sectional drawing that outer spherical surface is attached with the spherical bearing of plastic layer.

Wherein: 1, steel plate; 2, steel layer; 3, nail; 4, plastic layer; 5, oily cave.

Embodiment

The invention will be further described below in conjunction with accompanying drawing.

Be that the rolling calendering technology by milling train is shaped on evenly distributedly on the steel plate 1 of rectangle as shown in Figure 1 and Figure 2, in the ranks staggering is integral the nail 3 of cylindrical protrusion with steel layer 2.The height of nail 3 is generally less than 2 millimeters.Nail 3 can also be polygonal cylinder or the round platform or the terrace with edge shape of rectangle or rhombus or triangle or hexagon etc., for the nail 3 of round platform or terrace with edge, the roots that nail 3 top is connected with the steel layer greater than nail 3 become to hang upside down shape round platform or terrace with edges or follow closely 3 top less than the solid of following closely 3 root.Surface attachment sintering at steel layer 2 has wear-resisting plastic layer 4 again, and the plastic layer 4 of indication is made up of reinforced TFE material or modified polyformaldehyde material, does not also get rid of with other wear-resisting plastics, determines according to the applying working condition of sliding bearing.And whole nail 3 is embedded in the plastic layer 4 fully, makes plastic layer 4 be engaged in steel layer 2 surface securely.Can also be shaped on recessed oily cave 5 at the outer surface of plastic layer or be shaped on oil groove in order to improve lubricity,, be used for adding lubricant oil, form the plane sliding bearing of rectangle at rubbing surface as oily cave Fig. 3 of rhombus, shown in Figure 4.What remove that this uses morely is circular axle sleeve type sliding bearing, it is the blank with plane sliding bearing, specification and development size blanking according to the axle sleeve type sliding bearing, again circle circle, integer, be processed into plastic layer 4 as shown in Figure 5 at the axle sleeve type sliding bearing of endoporus, also can oppositely roll and be processed into the axle sleeve type sliding bearing of plastic layer 4 at outer round surface.Can also make spherical bearing according to usage requirement, plastic layer 4 on the ectosphere surface as shown in Figure 6, or plastic layer 4 is at the sliding bearing of the shapes such as spherical bearing on endosphere surface.

Claims

1, steel is moulded sliding bearing, at least comprise the steel layer and attached to the wear-resisting plastic layer of steel laminar surface, it is characterized in that the steel laminar surface between steel layer and plastic layer is shaped on the nail of column or round platform or terrace with edge shape projection, whole nail is embedded in the plastic layer fully, form the junction surface of mutual interlock, the surface is wear-resisting plastic layer.

2, steel according to claim 1 is moulded sliding bearing, it is characterized in that being made up of reinforced TFE material or modified polyformaldehyde material at described plastic layer.

3, steel according to claim 1 is moulded sliding bearing, it is characterized in that being meant circular or polygonal cylinder at the nail of described columnar protrusions.

4, steel according to claim 1 is moulded sliding bearing, and the nail of described round platform or terrace with edge is characterized in that the top of following closely becomes to hang upside down shape round platform or terrace with edge or the top of the nail root less than nail greater than the root that nail is connected with the steel layer.

5, steel according to claim 1 is moulded sliding bearing, it is characterized in that at described nail evenly distributedly, in the ranks staggers.

6, steel according to claim 1 is moulded sliding bearing, it is characterized in that the shape at described steel layer is tabular or circular axle sleeve or spherical shape.

7, steel according to claim 6 is moulded sliding bearing, it is characterized in that at described plastic layer at the bore area of axle sleeve or at outer round surface or the internal surface of sphere or the outer surface of sphere of axle sleeve.

8, steel according to claim 1 is moulded sliding bearing, it is characterized in that being the light face or being shaped on oil groove or recessed oily cave at the outer surface of described plastic layer.

9, steel according to claim 1 is moulded sliding bearing, and the height that it is characterized in that described nail is less than 2 millimeters.

10, steel according to claim 3 is moulded sliding bearing, it is characterized in that being meant rectangle or rhombus or triangle or hexagonal cylinder at described polygonal cylinder.