DE1977638U - BALL JOINT FOR MOTOR VEHICLES. - Google Patents

Description

• Α.27909? * 27.5.6ί

"Or, Ing", Jürgen Ulderup, Lemfcrde / Hann., Bergstrasse

"Egg hinge for motor vehicles"

The invention relates to a ball joint, in particular a ball joint for the .Lufhengung independently guided struggles of Eraftfahrsengen »Such joints consist essentially of a housing, in devi in a corresponding hollow surface of the spherical spigot of a G-steering pin is mounted, and where the Joint housing has an opening for the joint pin to exit. The head of the pin is either fully spherical or has a hemispherical S ¹ OrBi ₉ which is supplemented to form a full ball by a bearing body penetrated by the pivot pin.

Such joints must be the ones that occur in ferry operations meet diverse / requirements as far as possible. Ss should include the 'transfer of large! guests without premature Destruction of the joint parts be ensured and thereby also the desired ease of movement of the ■. Joint preserved remain »for spatial and cost aaean considerations is also a simple, few parts. construction of the joints strived for «In addition, the joints should remain as maintenance-free as possible.

Many suggestions have been made to address both of these constructive way, as well as from the material side

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to get to a Yervollko / T'Eiruiig such joints, oo it is known, for example, Hollen, balls o.dergl « made of hardened steel between a bearing shell in ?, eggs ball head to be provided »Such, in the sail as a pressure roller larger trained liners are z'var to 4ufnalime Suitable for larger forces, but they require an increase in size of the joint, which for some circumstantial reasons avoid is. Furthermore, the fastening of such insoles is necessary in the swivel joint housing often .difficulties, in order to Damping of the steering movements with elastic plastic more or less sliding properties for the lining used, the disadvantage remains that the inviting permanently deform under high loads, whereby LocationYeranderimgen des Eueelkopfes are called and as a result, there is an uneven load distribution, which impair the function of the G-joint. The allowances applied so far did not lead to one radical improvement, neither in the sense of a simplification of the gel structure, nor with regard to the function such joints and their durability, especially under high ones Charges"

Object of the invention is to provide a ball joint which is simple in structure, can be designed raumgiinstig, and can therefore be well mounted \ which is also smooth and / Maintenance requires no T, and a very high reliability and durability even at high Has loads, with all-axially and radially acting forces being absorbed in a favorable "manner."

Accordingly, the invention consists in that the! ^r u; elkcpf of the pivot pin or a bearing body that supplements the ball head or the joint housing, or a bearing shell made of aluminum with a bearing layer hardened by oxidation is provided between the ball head or bearing body and the joint housing ο

. '■ .us of the construction of a ball and socket joint according to the invention there are various advantages.

With the invention, unusually hard running surfaces suitable for the transmission of large forces are created in a ball joint in a simple manner, which are abrasion and wear-resistant . have use, for example, as case-hardened 3-steel runners »Der Beib ^; - / ert is evs; be? ~ is quite low and can be compared with the well-known itt-3ln, such as graphite, molybdenum disulphide or the like. reduce even more,

The overlay created by chemical conversion has a very fine porous structure and can be created up to a layer tariff of 2/10 mm and more, the porosity of the layer allowing the absorption of lubricating oil for the purpose of permanent lubrication. Such a joint is practically maintenance-free _{or the like}

In a '.'e "7iä ~ .s -5er invention constructed. Ball joint which substantially (or parts are" whose trajende treads corrosion free. The run produced by Cbcydation .As layers are electrically insulating. Osrydierte the -running surface from the ¹ GiTundmc- terisl grows, there is a secure, firm connection with the joint part made of aluminum or its Alurainium layer. Another particular advantage of Jim is that the chemical conversion of the aluminum surface does not result in any damage δ of the base material Hardening itself is required as a customary building material, but it also eliminates the unavoidable lack of material in the workpieces during steel hardening.

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Further details of the invention are described below with reference to the drawing, in which the invention in various Embodiments in Figs. 1-6 is shown partially in section.

In the figures, the pivot pin 1 with its full or hemispherical head 2 is in a joint housing J directly or with the interposition of a bearing body 4 (Fig. 2, A-, 6) or a bearing shell 8 (Fig. 5> 6) on all sides movably mounted. Here, the ball head 2 is supported on the closure side of the housing against a king 5 made of resilient material, for example an elastic plastic, which rests against the closure cover 6. On the pin exit side, the opening of the G-joint housing is sealed by an elastic sleeve 7.

According to Fig. 1 and 2, the joint housing 3 is made of aluminum and has on its wall facing the ball head a running layer 9 created by oxidation, while the ball head 2 or the bearing body A * which complements it to form a solid ball is advantageously made of stainless steel.

Compartment Fig. 3 and 4, the gel housing is made of stainless ■ unhardened steel and the bearing part 2 (Fig. 3) forming the spherical pin head or the bearing body 4 (Fig. A-) is made of aluminum, with these parts on the running surfaces the Wear oxide layer 9.

In Figs. 5 and 6 embodiments are shown in which the ball head 2 or the dome-shaped bearing body A- are made of stainless steel, while the joint housing 3 consists of simple heat-treated steel. Between the ball head 2 or bearing body A on the one hand and the

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Joint housing 3, on the other hand, is a bearing shell 8 from Aluminum provided, the inner wall of which has an oxide layer has as a tread.

As can be seen from the figures, a ball joint made according to the invention is quite simple. Ground it only a few uncomplicated parts are required to achieve maximum load-bearing capacity. The joint parts can be easily manufacture and combine, whereby the finished joint remains spatially very small and can be accommodated well on the vehicle can. Modifications to the described embodiment are within the scope of the invention. 3o, for example, the in each case not made of aluminum bearing parts except from the common types of steel just as well from one be formed other suitable material.

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Claims (1)

RA.273 097 * 5/27/66 ¥ a '' -fe a η s Ό ruch: Ball joint for motor vehicles, in particular a ball joint for the suspension of independently guided wheels Motor vehicles, consisting of a joint housing, in a corresponding. Hollow surface of the spherical. head of a pivot pin is mounted and wherein the housing has an opening for the exit of the pivot pin having, characterized in that the ball head of the G pivot or a complementary ball head Bearing body, or the joint housing, or one between Ball head bsw. bearing body and joint housing provided The bearing shell is made of aluminum with an overlay hardened by oxidation. 5/24/66 Le / L