DE1949735A1 - Roll-bearing longitudinal guide - Google Patents

Description

PATENT LAWYERS ~ _ΛΓ . _Λ

DiPL-JNG. BUSCHHOhF ⁸ ^ ¹⁰¹

DtPL-ING. HEMNICKE 1. 10, DIPL-ING. VOLLBACH

5 COLOGNE m / mor

A ktie ngesellschaft 3? Ritz Studer, Glocksnth &'J.' ^r o! hur. Machine factory

Longitudinal guide with roller bearings

The invention "relates to a longitudinal guide with roller bearings, in which one of the two guideways has a convex or concave cross-section, while the second guideway can have either a flat, convex or concave cross- section.

This arrangement is known as the longitudinal ball guide and has proven itself in practice. The inner one Guide track is mostly convex as a round column or as a segment of a column, while the outer guide track is concave as a sleeve or alo the section of a such is manufactured. Serve as rolling elements in all

009818/1210

previously "known cases balls that are either free or in an open cage, Pioso balls ro11 cm to the SäulsnauBEi ^ nfläaU '; .uiiä at the Hi Liiert-unöüfläob-:? al · /

V / he uses the λΙβ Wäl ^ fcörpor .kugeln, where entat: ήϊ; · ^ n öerun contact point with the i'ührunge-bshn -sins PmCct'he- · vv-lt.vvuag_ "and it results accordingly ^ nu uer j ^ weiligsn Soiimiöguiisi between rolling elements and Irührimgsbalya under load a high Herts ¹ SeIIe pressed part Aue flieser results in a relatively low load capacity, some a correspondingly low rigidity of this! '' uhrni-i ^ iihon- »■:

construction «

JJer invention is based Aurgabe _t cowolil the "8s laatbarkeit and di'ö stiffness dos Eingan ^ R ER.. ._. To increase wälmten Püh37ungst.ypes,

According to the present invention, if _P --d-ac> s, the rolling elements used will lie on at least one of the "two contact paths - which have a different cross-section from one another: with line contact. Z". '-

laughing a preferred embodiment of the invention, the roller-shaped rolling elements fly both the concave cross-section of one and ψ at the flat section clex · Recommend guideway line contact on. _; -, ■ -

In a further embodiment, the roll-shaped are Rolling bodies both on the convex cross-section of one and on the flat cross-section of the other J-guide arm mi.t ■ -. ·. Line contact. . . ■ - ",; ■■ -. ^ U:

According to another embodiment, the roller-shaped Rolling elements both, at the concave, transverse <& cut of the one, as also on the convex cross-section of the other guideway with line contact. ,

00981871210

BATH ORIGINAL

ITaela a further embodiment are the rollenförnii- {■: sn 'aiskörper aui concave cross-section of a Führungsba m ml; Linienbsrührung and the convex cross section of the enAevD- Fiüirmigsbahn' with point contact on!.

By Mnienberiümmg of the rolling elements ,, either with suff fitting en guideway or guide track with the inner 'or fülirungsbahnen with both, actual a much higher radial load of the longitudinal guide in the ERP;? Facilitated by a conventional longitudinal guide with spherical Wälskörpem possible. With the same type of rolling element, a much higher transverse rigidity can be achieved with the design according to the invention compared to a longitudinal guide with spherical rolling elements.

The "¥ ¥ älskkörpers" are preferably made of metal, iirs-especially made of hardened steel and can be arranged in any way on the milling surfaces.

In the following, an exemplary embodiment is given with the aid of the accompanying drawing. the invention described in more detail. ISs advised:

Fig. 1 is a cutout cross section through a Length guidance, in which the rolling elements both on the concave guide track and on the convex one The guideway with the lines is in place,

Fig. 2 is a longitudinal section along the line II - II äurch the longitudinal guide shown in Fig. 1,

3 shows a partial cross-section through a second embodiment of a longitudinal guide,

009818/1210

4 shows a partial cross section through a third iiuführungsurigßforra a longitudinal guide ■ -und

.FIg, 5 a partial cross-section through a fourth embodiment of a longitudinal guide ;.

The length guide shown in Fig. 1 and 2 "ordered from a guide sleeve I ₉ on its concave guide track .. 2 with the radius 5, the rolling elements 4 with their outer running surfaces 5, which are also raised cambered with the radius 3 _f roll. The same Rolling bodies 4 roll with their inner running surfaces 6, which are hollow cambered with the radius 7, - on the convex filling ring web 8 of the guide column 9 - with the radius 7 To avoid this, ground them with a cage 10 at a distance.

In Fig. 3 is a further embodiment of a longitudinal ' leadership shown in which die.-Rolling bodies. 16 both ara concave cross section of the guideway 15 as well as aui plane cross-section "of the guideway 17 with line contact issue. As in Fig. 1, the rolling elements 16 are with a Cage 18 distant. When Wälzkörper.16 according to Fig. 3 are the outer running surfaces are raised and the inner running surfaces 20 cylindrical.

Another embodiment of a longitudinal guide is shown in Fig. A. The roller-shaped rolling elements 21 are guided in a cage 22. The roller-shaped rolling elements rest both on the convex cross section of the guide track 23 and also on the flat cross section of the other guide track 24 with line contact. The inner running surface 25 of the rolling elements 21 are hollow, while the outer running surfaces 26 are cylindrical.

009818/1210 BAbORIGlNAL

Ik ;! the execution continuation according to a longitudinal guide, 3? ig. 5 aind the inner running surface 31 of the roller-like rolling elements 1-2 cylindrical, while the outer running surfaces 33 are raised cambered. Letaterθ lie with line contact ^{on the concave 1} V- 'van cross section of a guide track 34 , while lilt; Inner running surfaces 31 with point contact on the convex cross section of the other guide track 35 rests.

009818/1210

Claims (1)

Pat e nt a η s ρ rü che '1.) Rolling bearing "longitudinal guide τη it at least one guideway of convex or concave cross-section, characterized in that the roller-shaped rolling elements rest with line contact on at least one of the Pühruhgsbahnen, which have mutually different cross-sections . ο Rolling-bearing longitudinal guide according to claim 1, characterized in that the roller-shaped rolling elements rest with linear contact both on the concave cross-section of the one and on the flat cross-section of the other guide track Rolling bodies rest on both the convex cross-section of one and the flat cross-section of the other guide track with linear contact ahn with line contact lay on 5. Rolling-bearing longitudinal guide according to claim 1, characterized in that the roller-shaped rolling elements rest on the concave cross section of one guide track with line contact and on the convex cross section of the other guide track with point contact. September 9, 1969 009818/1210 e rs eι te