DE1906523C - Bushing with spherical zone-shaped outer boundary surface for use in the manufacture of a spherical joint plain bearing - Google Patents

Description

on the basis of FIG. 7 easier to understand. Assume that a base plate 6 of a predetermined thickness is rolled. The base plate 6 is stretched lengthways and widthways in the directions shown by the pillars and t /, as indicated by the dash-dotted lines b. This is used to make it easier to understand how the game ß between the bearing eye 5 of the rod part 3 and the inner spherical bushing I is achieved.

The cast ribs are then removed from the rod part 3 and other previously defined mechanical ones Machining processes, such as the formation of an internally threaded one against one end of the rod part 3 running bore or the formation of an external thread on the outer surface of the rod part, executed. As a result, the end products shown in FIGS. 1 and 2 or 3 and 4 are obtained.

In the sliding ball bearing thus provided, the hardness of the inner spherical liner 1, which is normally in the range of IiRc 60 to 66, is decreased to a range of HRc 40 to 45 because the liner 1 is exposed to a high temperature during the casting of the rod part 3 is. The outer boundary surface 2 of the inner, spherical liner 1 has an almost ideal spherical shape and an extremely smooth surface. Furthermore, the coating film, which is applied over part of the surface of the inner spherical liner, serves to support the easy adaptation of the casting material to the surface of the inner spherical liner I and to prevent any pore formation or the like in the rod part 3, whereby the bearing eye is of high quality.

The game U between the inner spherical bush \ and the bearing eye S of the rod part 3 can be easily adjusted by the inner liner of the retaining eye 5 is Slabteils 3 from the outside shock treated. As a result, the final product aimed at is high-performance and of excellent quality. The use of aluminum as the material for the St. Compartment 3 also results in a light weight; and a low deformability of the product, which is thus suitable for use in aircraft and the like.

All parts of the description and the drawing that are about the explanation of the content of the patent claim go beyond, are not the subject of the invention.

For this 1 sheet of drawings

Claims (1)

ι 2 ^End claim · ^{In the fol S dic} invention on the basis of ^μ 'exemplary embodiments with reference to the Liner explained in more detail with spherical zone-shaped outer drawing. Boundary area for use in the manufacture of Fig. I is a front view of one with the invention position of a ball joint slide bearing with a 5 ball bearing according to the invention outer bearing part, consisting of a rod part ■ swivel plain bearing; with a bearing eye, which the liner Fig. 2 shows a section along the line 11-11 encloses annularly, the liner in FIG. 1; a mold for the outer bearing part as the core Fig. 3 is a front view of a slightly modified brought into position and then melted AIu io derten form of the ball joint sliding bearing; minium is poured into the mold, thereby F i g. 4 is a section along line IV-IV of FIG characterized in that the spherical zone conveying F> G. 3; moderate outer boundary surface (2) with a Ti g. 5 shows a section of the casting mold for the thin film made of tin, copper or lead by positioning the ball-and-socket sliding bearing with the invention plating or coating is coated so that 15 proper liner; the coating material by mixing with FIG. 6 illustrates the generation of the play in FIG your einegov '-' ien molten aluminum to the ball-and-socket plain bearing; in the area of the inner running surface of the bearing assembly Fig. 7 illustrates in perspective the Arheits- ges (5) an aluminum alloy with a good sliding principle according to FIG. ft. forms storage properties. 20 The in the F i g. 1 and 3 shown embodiments of the ball joint sliding bearing according to the invention gers are made as follows. First will an inner spherical liner 1 made, the The I was rfindung relates to a bushing with ball to a heat treatment and a polishing zone shaped outer delimitation surface 25 for encryption subjected was reached whereby a hardness of HRc 60 turn in the manufacture of Kugelgelenkgleit- to 66th The spherical inner bearing with an outer bearing part, consisting of bush 1, has a spherical zone-shaped outer limiting rod part with a bearing eye, which has the tongue surface2, which is polished smooth. A liner is encircled on top of this, the barrel being made of tin, copper or lead through a bushing in a casting mold for the outer bearing part as a plating or coating process, being brought into position and then molten. Subsequently, the aluminum shown in Fig. 5 is poured into the mold. Forma, which is preferably an injection mold suitable for mass production. The simple way to manufacture, because the entire form is provided with a cavity 4, which is intended for the outer bearing part, which is made up of the rod part and the La- 35 formation of a rod part 3 (Fig. I to 4). In this form, the inner spherical barrel can be cast in one operation. The sliding properties of such a rifle I as a »core«, what as a designation for Giegers, are bad in the ball joint. 'essen is common, brought in position. A batch of the object of the invention is to form the molten aluminum in the height-adjustable liner for the production of a ball-and-socket joint of the form with the inner sliding bearing arranged therein, so that a ball-and-socket joint is cast in a spherical liner 1. Then shift is obtained, in which the inner running surface mixes the thin film of tin, copper or the bearing eye with a lining with good lead on the liner 1 is provided with the aluminum sliding bearing properties. melt, whereby a film of an aluminum alloy according to the invention is formed in a bushing 45 which has very good bearing properties with a spherical zone-shaped outer boundary surface. When the shaped rod part 3 with the inner barrel of the type described above is achieved by removing the bushing 1 from the mold, the inner, that the spherical zone-shaped outer boundary spherical bushing 1 in which the bearing eye 5 bilfläche with a thin film of tin, copper or The spherical head of the rod 3 is covered by plating or coating in such a way that the rod part has the inner spherical barrel so that the coating material is mixed with bush 1 due to the difference in the contracdeni of the molten aluminum poured in in the coefficient of movement between the The area of the inner running surface of the bearing eye forms a rod part that tightly encompasses the Xlununium and the material that forms the inner spherical barrel aluminum alloy with good anti-friction bearing properties. Plain bearing properties see 5 of the rod part, which the inner race Make sure that the bearing surfaces of the barrel do not rotate. The bearing eye5 of the rod liner is lined with tin, copper or lead, part 3, which holds the inner spherical liner 1; This known plating or coating is thereupon from the outside in the direction shown in FIG which at the same time holds a layer with nere spherical bushing 1 on its sliding surface, to create the good sliding bearing properties. dash-dotted lines /! The shape shown in FIG. 6 can be stretched or driven with the cylinder liner according to the invention. In this way, ball-and-socket plain bearings of extremely simple construction 65, a clearance B between the inner surface of the bearing can be produced in a very economical manner, which is created in the ball-bearing bushing 1 by virtue of 5 and the outer surface of the inner ball-excellent bearing properties
have steering. The educational principle for such a game can