DE905444C - Worm drive - Google Patents

Worm drive

Info

Publication number
DE905444C
DE905444C DEN3200A DEN0003200A DE905444C DE 905444 C DE905444 C DE 905444C DE N3200 A DEN3200 A DE N3200A DE N0003200 A DEN0003200 A DE N0003200A DE 905444 C DE905444 C DE 905444C
Authority
DE
Germany
Prior art keywords
profile
tool
worm
screw
mean
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEN3200A
Other languages
German (de)
Inventor
Dr-Ing Gustav Niemann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUSTAV NIEMANN DR ING
Original Assignee
GUSTAV NIEMANN DR ING
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GUSTAV NIEMANN DR ING filed Critical GUSTAV NIEMANN DR ING
Priority to DEN3200A priority Critical patent/DE905444C/en
Application granted granted Critical
Publication of DE905444C publication Critical patent/DE905444C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F13/00—Making worms by methods essentially requiring the use of machines of the gear-cutting type
    • B23F13/02—Making worms of cylindrical shape
    • B23F13/04—Making worms of cylindrical shape by grinding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/22—Toothed members; Worms for transmissions with crossing shafts, especially worms, worm-gears

Description

Die Erfindung bezieht sich auf Schneckentriebe mit Zylinderschnecke mit konkavem Flankenprofil der Schneckengänge entsprechend der Patentschrift 855 927-Erfindungsgemäß wird für derartige ;Schneckentriebe eine Verzahnung vorgeschlagen, die eine besonders günstige Wirkungsweise hinsichtlich Verlustleistung und Tragfähigkeit mit einer wirtschaftlichen Herstellung@smöglichkeit verbindet.The invention relates to worm drives with cylindrical worms with a concave flank profile of the worm flights according to patent specification 855 927-According to the invention, a toothing is proposed for such worm drives, which is particularly beneficial in terms of power dissipation and load capacity connects with an economical production @ sm option.

Das konkav Flankenprofil der iSchneckengänge ist hierbei festgelegt durch das Profil des Werkzeuges als konvexer Kreisbogen, als konvexe ,Evolvente oder als Teil einer ähnlich einfachen, bestimmten konvexen Kurve und ferner durch die bekannte Relativbewegung des Werkzeuges in Richtung der Schneckengänge.The concave flank profile of the i-worm flights is defined here due to the profile of the tool as a convex circular arc, as a convex, involute or as part of a similarly simple, definite convex curve and further through the known relative movement of the tool in the direction of the worm threads.

Die Herstellung der,Schnecke kann in gewohnter `-eise mit einem Stichel, einem Fräser oder einer Schl ifscheibe auf den für .die Schneckenherstellung üblichen Maschinen erfolgen, wobei die herzustellende Schnecke relativ zu dem im Gewindegang angestellten Werkzeug verschraubt wird. Die weiteren Empfehlungen zur günstigen Festlegung der Schneckenverzahnung gehen aus,der nachfolgenden Beschreibung hervor.The production of the snail can be done in the usual way with a graver, a milling cutter or a grinding disk on the ones commonly used for the manufacture of worms Machines take place, with the screw to be produced relative to that in the thread hired tool is screwed. The other recommendations for the cheap Determination of the worm teeth can be found in the following description.

In Abb. z sind die Schnecke i und das davorliegende Werkzeug 2 in Ansieht dargestellt. Das Werkzeug (Schleifscheibe) ist im Winkel y gleich dem mittleren iSteigungswinkel angestellt.In Fig.z the worm i and the tool 2 in front of it are in Looks shown. The tool (grinding wheel) is equal to the middle one at angle y iSlice angle employed.

Abb.2 zeigt in vergrößerter Darstellung die Schneckenverzahnung und das Werkzeug 2 im Norinalschnitt N-N. Das Profil des Werkzeuges ist hier ein Kreisbogen, dessen mittlerer Flankenwinkel a, für alle ,Steigungswinkel zweckmäßig konstant gehalten wird, und zwar etwa 2,0 bis 25°.Fig. 2 shows an enlarged representation of the worm gear and the tool 2 in the norinal section NN. The profile of the tool here is an arc of a circle, the mean flank angle a of which, for all of the pitch angles, is appropriately kept constant, namely approximately 2.0 to 25 °.

Die Schmiegungsverhältnisse zwischen Schnecke und globoidförmigem Schneckenrad -,werden bezüglich Beanspruchung, ,Schmierdruckbildung und Verlustleistung besonders günstig, wenn der mittlere Krümmungshalbmesser RS des Werkzeugprofils oder der hierdurch entstehende mittlere Krümmunäshalbmesser RA des Schneckenprofils im Achsschnitt (Abb. i) ungefähr gleich dem mittleren Schneckenhalbmesser r ist.The oscillation relationships between the snail and the globoid-shaped one Worm gear -, are with regard to stress,, lubrication pressure formation and power loss particularly favorable if the mean radius of curvature RS of the tool profile or the resulting mean radius of curvature RA of the screw profile in the axial section (Fig. i) is approximately equal to the mean screw radius r.

Claims (3)

PATENTANSPRÜCHE: i. Schneckentrieb mit zylirndrdscher Schnecke mit konkavem Flankenprofil der Schneckengänge, gekennzeichnet durch ein Flankenprofil, ,das definiert ist durch das Profil des Werkzeuges als konvexer Kreisbogen, als konvexe ERolvente oder als Teil einer ähnlich einfachen, bestimmten konvexen Kurve und -durch die bekannte Relativbewegung ides Werkzeuges in Richtung Kler Schneckengänge: PATENT CLAIMS: i. Worm drive with cylindrical worm with concave flank profile of the screw flights, characterized by a flank profile, , which is defined by the profile of the tool as a convex circular arc, as convex ERolvente or as part of a similarly simple, definite convex curve and - due to the known relative movement of the tool in the direction of the Kler worm flights: 2. Schneckentrieb nach Anspruch i, gekennzeichnet durch einen mittleren Krümmungshalbm-esser (R,) des Werkzeugprofils oder des hierdurch entstehenden mittleren Krümmungshalbmess.ers (RA) des Schneckenprofils im Achsschnitt, ungefährr gleich dem mittleren Schnekkenhalbmesser (r). 2. worm drive according to claim i, characterized by a mean curvature half-meter (R,) of the tool profile or the resulting mean radius of curvature (RA) of the screw profile in the axial section, approximately equal to the mean screw radius (r). 3. Schneckentrieb nach Anspruch i, gekennzeichnet durch einen konstanten mittleren Flankenwinkel (as), unabhängig vom Steigungswinkel der Schnecke.3. worm drive according to claim i, characterized by a constant mean Flank angle (as), independent of the helix angle of the screw.
DEN3200A 1950-12-01 1950-12-01 Worm drive Expired DE905444C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEN3200A DE905444C (en) 1950-12-01 1950-12-01 Worm drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN3200A DE905444C (en) 1950-12-01 1950-12-01 Worm drive

Publications (1)

Publication Number Publication Date
DE905444C true DE905444C (en) 1954-03-01

Family

ID=7337975

Family Applications (1)

Application Number Title Priority Date Filing Date
DEN3200A Expired DE905444C (en) 1950-12-01 1950-12-01 Worm drive

Country Status (1)

Country Link
DE (1) DE905444C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1625123B1 (en) * 1967-05-03 1971-03-11 Niemann Gustav Prof Dr Ing Worm gear with cylindrical or conical hollow flank worm
JPH03294283A (en) * 1990-04-13 1991-12-25 Asai Gerumaniumu Kenkyusho:Kk Production of optically active organogermanium compound
JPH0456250U (en) * 1990-09-21 1992-05-14
JP2021041501A (en) * 2019-09-12 2021-03-18 Dmg森精機株式会社 Worm manufacturing method and manufacturing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1625123B1 (en) * 1967-05-03 1971-03-11 Niemann Gustav Prof Dr Ing Worm gear with cylindrical or conical hollow flank worm
JPH03294283A (en) * 1990-04-13 1991-12-25 Asai Gerumaniumu Kenkyusho:Kk Production of optically active organogermanium compound
JPH0456250U (en) * 1990-09-21 1992-05-14
JP2021041501A (en) * 2019-09-12 2021-03-18 Dmg森精機株式会社 Worm manufacturing method and manufacturing device
JP7145133B2 (en) 2019-09-12 2022-09-30 Dmg森精機株式会社 Worm manufacturing method and manufacturing apparatus

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