CN2486773Y - Sintered double metal axial thrust bearing - Google Patents

Abstract

The utility model relates to a sintered double metal axial thrust bearing, comprising a basal backing layer and an antifriction layer, wherein the antifriction layer is positioned on one side surface The utility model relates to a sintering double metal axial directional thrust bearing, which comprises a base body backing layer and an antifriction layer. The antifriction layer is arranged at one sof the basal backing layer or two side surfaces of the base backing layer; the basal backing layer is made of sintered steel; the antifriction layer is made of sintered copper alloy. The antifriction ide of the base body backing layer or two sides. The base body backing layer is made of sintered steel and the antifriction layer is made of sintered copper alloy. The antifriction layer is compoundedlayer is compounded on the basal backing layer through hot rolling press. The sintered steel is low carbon steel or medium carbon steel. The sintered copper alloy is tin bronze alloys, or kelmet bronz on the base body backing layer by a hot rolling. The sintered steel is a mild carbon steel or a medium carbon steel. The sintered copper alloy is a tin bronze alloy, or a lead bronze alloy, or a coppe alloy, or pot metal. The utility model has the advantages of high material utilization, processing saving and low cost. er lead alloy. The utility model is provided with advantages of a high material utility rate, an economic processing and a low cost.

Description

Sintering bimetal axial thrust bearing

Technical field

The utility model relates to a kind of sintering bimetal axial thrust bearing, is a kind of with the matrix backing layer of sintered steel as bearing, with the axial thrust bearing of sintered copper alloy as the composite structure of antifriction layer composition.

Background technique

As long as the machinery of various rotations just has end thrust to exist at the volley, will be equipped with thrust-bearing, and therefore, axial thrust bearing uses very general in mechanical industry, and consumption is very big, is one of a kind of important machine foundation Component.For example: the thrust bearing in heavy universal machine, in the diesel engine, semicircular ring, the rotation piston shoes in the automobile air conditioner compressor.And for example: in the hydraulic-pressure pump, floating bearing in the gear oil pump, oval, irregular shape, 8 font side plates, the oil distribution casing in the vane oil pump, the seven apertures in the human head cylinder body in the high-pressure plunger oil pump etc.The conventional construction of this class axial thrust bearing part has two kinds now: a kind of is the global copper alloy, and another kind is the widely used copper alloy dual-metal of ability in this century.Having the casting copper alloy layer and two kind of sintered copper alloy layer on the steel lining quilt bimetallic the branch again on the steel lining quilt.The thrust-bearing of preceding a kind of single Cuprum alloy is more old, in the axial thrust bearing of a kind of bimetal structure in back, though in this class bearing kind of sintered copper alloy layer, the non-ferrous metal amount of expending has been had bigger improvement greatly, but the amount of expending of steel is still very big, average steel utilization ratio is about 50%, also need to expend many machining operations, working machine tool, man-hour, manpower etc., the requirement of the mechanical industry that is far from suitable fast development.

Summary of the invention

The purpose of this utility model is: provide a kind of sintering bimetal axial thrust bearing, the advantage that make it have the stock utilization height, to economize processing, cost is low.

For achieving the above object, a kind of sintering bimetal axial thrust bearing that the utility model adopts is made of matrix backing layer and antifriction layer, the antifriction layer is positioned at matrix backing layer one side, or bi-side, matrix backing layer is made with sintered steel, and the antifriction layer is made with sintered copper alloy.The antifriction layer is to be compounded on the matrix backing layer with hot rolling.Described sintered steel is a low carbon steel, or middle-carbon steel.Described sintered copper alloy is a tin bronze alloys, or the lead bronze alloy, or copper lead alloy.

The utility model has the advantages that have the stock utilization height, economize processing, cost is low.Only pull (as shown in Figure 1) with the unsteady side of 8 font bimetals in the gear oil pump of limited production, this 8 font plate Cuprum alloy thickness is 0.8mm.Traditional materials of this part are Cuprum alloy 42.24 grams, pull 117 grams with cold rolled steel, and the utility model are 19.6 grams with the Cuprum alloy powder, with the sintered steel powder is 54.3 grams, saves Cuprum alloy 53.59%, saves steel material 54%, therefore, the utlity model has good, considerable economic.

Description of drawings

Fig. 1 is a product front schematic view of the present utility model

Fig. 2 is the A-A generalized section of Fig. 1

Fig. 3 is the A-A generalized section of another product of Fig. 1 shape

Embodiment

As depicted in figs. 1 and 2, sintering bimetal axial thrust bearing, form by 1 on antifriction layer, this thrust-bearing is made of matrix backing layer 2 and antifriction layer 1, the antifriction layer is positioned at matrix backing layer one side, or bi-side, and matrix backing layer is made with sintered steel, the antifriction layer is made with sintered copper alloy, and the antifriction layer is to be compounded on the matrix backing layer with hot rolling.The antifriction layer of product is positioned at matrix backing layer one side as shown in Figure 2.Because the antifriction layer mainly is positioned on the thrust friction face of thrust-bearing, so the antifriction layer can be set as required.As shown in Figure 3, because the thrust friction face of this thrust-bearing is on the bi-side of matrix backing layer, therefore, the antifriction layer of this bearing is positioned at the bi-side of matrix backing layer.Described sintered steel is a low carbon steel, or middle-carbon steel.Described sintered copper alloy is a tin bronze alloys, or the lead bronze alloy, or copper lead alloy.Using scope of the present utility model is very extensive, disclose in the schematic representation only for a kind of product, the utility model can be applicable in the thrust-bearing of different shape and shape number.

Claims (3)

1, a kind of sintering bimetal axial thrust bearing, formed by the antifriction layer, it is characterized in that: this thrust-bearing is made of matrix backing layer and antifriction layer, the antifriction layer is positioned at matrix backing layer one side, or bi-side, matrix backing layer is made with sintered steel, and the antifriction layer is made with sintered copper alloy, and the antifriction layer is to be compounded on the matrix backing layer with hot rolling.

2, by the described sintering bimetal of claim 1 axial thrust bearing, it is characterized in that: described sintered steel is a low carbon steel, or middle-carbon steel.

3, by the described sintering bimetal of claim 1 axial thrust bearing, it is characterized in that: described sintered copper alloy is a tin bronze alloys, or the lead bronze alloy, or copper lead alloy.