AT89458B - Process for the production of gears in which the two tooth flanks, measured in the longitudinal direction, are curved in opposite directions with respect to the longitudinal center plane of the teeth. - Google Patents

Process for the production of gears in which the two tooth flanks, measured in the longitudinal direction, are curved in opposite directions with respect to the longitudinal center plane of the teeth.

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Publication number
AT89458B
AT89458B AT89458DA AT89458B AT 89458 B AT89458 B AT 89458B AT 89458D A AT89458D A AT 89458DA AT 89458 B AT89458 B AT 89458B
Authority
AT
Austria
Prior art keywords
gears
production
teeth
curved
measured
Prior art date
Application number
Other languages
German (de)
Original Assignee
Skf Svenska Kullagerfab Ab
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 Skf Svenska Kullagerfab Ab filed Critical Skf Svenska Kullagerfab Ab
Application granted granted Critical
Publication of AT89458B publication Critical patent/AT89458B/en

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  • Gear Processing (AREA)

Description

  

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  Verfahren zur Herstellung von Zahurädern, bei welchen die beiden Zahnflanken in 
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   Die Erfindung bezicht sich auf Stirn-und Kegelräder mit gerad n oder   schrägen Zähnen,   bei welchen die beiden Flanken in der Längsrichtung gemessen in entgegengesetzten Richtungen in bezug auf die längsgehende Mittelebenen des Zahnes gerümmt sind. Der Zweck dieser Zahnform ist bekanntlich, die Gefahr des Zahnbruches zu vermindern, indem auch bei   unrichtigem   Einbau zweier zusammenarbeitender zahnräder der Zahndruck haptsächlich in oder in der Nähe der Mitte der Zähne und nicht an 
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 aie grösste ist. Die   Erfindung bezweckt, die Herstellung soleher Zahnräder möglichst einfach   zu gestalten und gleichzeitig eine ideale Zahnform zu erreichen, so dass der Eingriff ruhig vor sich geht und der Gang geäuschlos und stossfrei wird.

   Die Erfindung besteht darin, dass bei der Herstellung solcher   Zahnräder   nach dem abwälzverfahren umlaufende Schneid- oder Schleifwerkzeage zur Anwendung kommen, deren Arbeitsflächenkegeligsind. 



   Zur Erläuterung der Erfindung zeigt Fig. 1 der Zeichnung schematisch das bekannte Verfahren zur Herstellung von   Zahnrädern   mittels   umlaufender     Schneid-oder Schleifwerkzeuge. Fig.   2 zeigt schematisch das Verfahren nach der Erfindung. Fig. 3 ist ein   Längsschnitt eines Zahnes eines Stirnrades   der oben angeführten Art. Fig. 4 zeigt eine abgeänderte Zahnform. 
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 geschwindigkeit an dem Teilkreise gleich ist. Die arbeitenden Teile der Werkzeuge 2 und. 3 bilden in bekannter Weise zusammen einen Zahn einer gedachten Erzeugungszahnstange. 



   Bei dem in Fig. 2 veranschaulichten Verfahren   zur Herstellung von Stirnrädern   mit gekrümmten   Zähnen   werden auch zwei   umlaufende Werkzeuge   2 und 3 verwendet und die relative Bewegung zwischen den Werkzeugen und dem   Werkstück 7 ist dieselbe   wie bei dem oben beschriebenen bekannten Verfahren. 
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  Process for the production of gear wheels, in which the two tooth flanks in
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   The invention relates to spur and bevel gears with straight or inclined teeth, in which the two flanks, measured in the longitudinal direction, are curved in opposite directions with respect to the longitudinal central planes of the tooth. The purpose of this tooth shape is known to reduce the risk of tooth breakage by the fact that the tooth pressure mainly in or near the center of the teeth and not on, even with incorrect installation of two cooperating gears
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 aie is the greatest. The aim of the invention is to make the production of such gears as simple as possible and at the same time to achieve an ideal tooth shape so that the engagement proceeds smoothly and the gear is silent and jolt-free.

   The invention consists in that, in the production of such gearwheels according to the hobbing process, rotating cutting or grinding tools are used, the working surfaces of which are conical.



   To explain the invention, FIG. 1 of the drawing shows schematically the known method for producing gear wheels by means of rotating cutting or grinding tools. Fig. 2 shows schematically the method according to the invention. Fig. 3 is a longitudinal section of a tooth of a spur gear of the type mentioned above. Fig. 4 shows a modified tooth shape.
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 speed is the same on the pitch circles. The working parts of tools 2 and. 3 together form a tooth of an imaginary generation rack in a known manner.



   In the method for manufacturing spur gears with curved teeth illustrated in FIG. 2, two rotating tools 2 and 3 are also used and the relative movement between the tools and the workpiece 7 is the same as in the known method described above.
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AT89458D 1919-11-19 1920-11-18 Process for the production of gears in which the two tooth flanks, measured in the longitudinal direction, are curved in opposite directions with respect to the longitudinal center plane of the teeth. AT89458B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE89458X 1919-11-19

Publications (1)

Publication Number Publication Date
AT89458B true AT89458B (en) 1922-09-25

Family

ID=20275434

Family Applications (1)

Application Number Title Priority Date Filing Date
AT89458D AT89458B (en) 1919-11-19 1920-11-18 Process for the production of gears in which the two tooth flanks, measured in the longitudinal direction, are curved in opposite directions with respect to the longitudinal center plane of the teeth.

Country Status (1)

Country Link
AT (1) AT89458B (en)

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