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WO2008007996A1 - Transmission à éléments intermédiaires - Google Patents

Transmission à éléments intermédiaires Download PDF

Info

Publication number
WO2008007996A1
WO2008007996A1 PCT/RU2006/000665 RU2006000665W WO2008007996A1 WO 2008007996 A1 WO2008007996 A1 WO 2008007996A1 RU 2006000665 W RU2006000665 W RU 2006000665W WO 2008007996 A1 WO2008007996 A1 WO 2008007996A1
Authority
WO
WIPO (PCT)
Prior art keywords
cam
central
intermediate links
central wheel
intermediate members
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.)
Ceased
Application number
PCT/RU2006/000665
Other languages
English (en)
Russian (ru)
Inventor
Boris Georgievich Hohriakov
Viktor Vasilievich Vasiliev
Sergey Ivanovich Bakalov
Gennadiy Nikolaevich SELEZNEV
Elena Daniilovna Pisanko
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.)
Obschestvo S Ogranichennoi Otvetstvennostiyu Npo 'sibirskiy Mashinostroitel'
Original Assignee
Obschestvo S Ogranichennoi Otvetstvennostiyu Npo 'sibirskiy Mashinostroitel'
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 Obschestvo S Ogranichennoi Otvetstvennostiyu Npo 'sibirskiy Mashinostroitel' filed Critical Obschestvo S Ogranichennoi Otvetstvennostiyu Npo 'sibirskiy Mashinostroitel'
Publication of WO2008007996A1 publication Critical patent/WO2008007996A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
    • 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
    • F16H57/00—General details of gearing
    • F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere

Definitions

  • the invention relates to mechanical engineering and can be used in drives of high-precision and heavily loaded machines.
  • This transmission is not a high efficiency due to deviations in the geometry of the internal teeth (step difference, accumulated pitch errors, unequal tooth geometry, etc.) of the fixed and rotary central wheels.
  • this device has a complex structure and insufficient bearing capacity, which is limited by the low rigidity and strength of the threaded rods at their contact with the swivel wheel.
  • the closest technical solution is a transmission with intermediate links (description to RF patent JNi- 1716227 Al 5 MKI: F 16H57 / 12, 1/00) comprising a housing, a drive shaft and a driven shaft, a cam mounted on the drive shaft, a central wheel with internal teeth fixedly mounted in the housing, a clip rigidly connected to driven shaft, and intermediate links located in the grooves of the cage for interaction with the cam and the Central wheel.
  • the transmission is equipped with an axial adjustment element located between the housing and the cam, the latter has the possibility of axial movement, and its working surface is conical.
  • the known transmission with intermediate links when transmitting torque from the input shaft to the output, the axial forces begin to act on the intermediate links.
  • the disadvantage of this transmission is its low efficiency, due to the occurrence of axial friction between the rolling bodies and the surfaces of the grooves of the clip.
  • the main task to be solved by the claimed invention is aimed at creating a transmission with intermediate links, providing an increase in efficiency while increasing its accuracy.
  • a transmission with intermediate links comprising a housing, drive and driven shafts, a cam with a cone-shaped working surface and an axial adjustment device mounted on the drive shaft, a central wheel with internal teeth and a cage, with rows of intermediate located in its grooves links for interacting with the cam and with the inner teeth of the central wheel, the inner teeth of the central wheel have a side surface, the generatrix of which is located at an angle to its center ral axis.
  • This transmission with intermediate links has the following advantages.
  • the inner teeth of the central wheel are cut so that the generatrix of the side surface of these internal teeth forms an angle with the central axis of the central wheel.
  • the internal teeth represent a complex profile evenly tapering toward the central axis.
  • the most progressive method of cutting the teeth of the central wheel for such gears is cutting teeth on EDM wire-cutting machines. This tilt of the teeth is easily performed by shifting the upper or lower guide of the cutting wire, which forms the side surface of the teeth of the Central wheel.
  • the angle of inclination of the working surfaces of the teeth and the cam can be set by any one based on the design requirements. An increase in the angle of inclination significantly reduces the course of adjustment in the axial adjustment device.
  • FIG. 1 shows a transmission structure with intermediate links.
  • FIG. 2 transverse section of the transmission with intermediate links.
  • FIG. 3 is a three-dimensional view of a fragment of a central wheel with internal teeth.
  • the transmission with intermediate links contains a housing 1 with a central wheel 2 with internal teeth fixedly fixed in it 3.
  • the generatrix of the side surface of the internal teeth 3 of the central wheel 2 forms an angle ⁇ with its central axis (Fig. 1, Fig. 3) .
  • a drive shaft 5 is mounted on the support 4, made integral with the cam 6 eccentrically placed on it, having a cone-shaped working surface.
  • the cam 6 interacts with the intermediate links 7 (balls), which are placed in the radial grooves of the cage 8, combined with the driven shaft 9.
  • the cam 6 rotates with it, orbiting in a circle with a radius equal to the eccentricity of this cam, while the balls 7 are given radial movement and interacting with the side surfaces of the inner teeth of the central wheel 2, they press on the side surfaces of the teeth , and due to the occurrence of radial forces are shifted also in the circumferential direction.
  • the balls 7 carry along with themselves in the circumferential direction and the clip 8, in the grooves of which they are located. In this case, together with the clip 8, the driven shaft 9 rotates.
  • the inventive transmission with intermediate links can find application in the construction of high-precision gears, which should have small dimensions and weight, high bearing capacity and high efficiency
  • high-precision gears which should have small dimensions and weight, high bearing capacity and high efficiency
  • servo antenna drives wing and aileron steering drives
  • antenna disclosure drives metering devices, etc.
  • mechanical engineering in drives of dividing tables, in feed drives, in reading and measuring devices.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gears, Cams (AREA)

Abstract

L'invention se rapporte aux constructions mécaniques et peut s'utiliser dans des entraînements de machines de précision ou lourdement chargées. L'invention concerne une transmission à éléments intermédiaires assurant un rendement plus élevé et à la fois une plus grande précision. Selon l'invention, dans une transmission à éléments intermédiaires, comprenant un boîtier, des arbres d'entraînement et entraîné, une came avec une surface de travail conique et un dispositif de réglage axial monté sur l'arbre d'entraînement, une roue centrale avec des dents internes et un carter dans les logements duquel on a monté des éléments intermédiaires destinés à interagir avec la came et les dents internes de la roue centrale, les dents internes de la roue centrale on une surface latérale dont la génératrice est orientée à un certain angle par rapport à son axe central.
PCT/RU2006/000665 2006-07-12 2006-12-11 Transmission à éléments intermédiaires Ceased WO2008007996A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2006125087 2006-07-12
RU2006125087 2006-07-12

Publications (1)

Publication Number Publication Date
WO2008007996A1 true WO2008007996A1 (fr) 2008-01-17

Family

ID=38923474

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2006/000665 Ceased WO2008007996A1 (fr) 2006-07-12 2006-12-11 Transmission à éléments intermédiaires

Country Status (1)

Country Link
WO (1) WO2008007996A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2479939A1 (fr) * 1980-04-07 1981-10-09 Nissan Motor Engrenages planetaires du type a rouleaux ayant un agencement de prechargement
SU1716227A1 (ru) * 1989-10-23 1992-02-28 Томский Филиал Научно-Исследовательского Института Технологии Машиностроения Передача с промежуточными звень ми
SU1839828A1 (ru) * 1988-01-20 2005-08-20 Государственное научно-производственное предприятие "Полюс" Волновая передача

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2479939A1 (fr) * 1980-04-07 1981-10-09 Nissan Motor Engrenages planetaires du type a rouleaux ayant un agencement de prechargement
SU1839828A1 (ru) * 1988-01-20 2005-08-20 Государственное научно-производственное предприятие "Полюс" Волновая передача
SU1716227A1 (ru) * 1989-10-23 1992-02-28 Томский Филиал Научно-Исследовательского Института Технологии Машиностроения Передача с промежуточными звень ми

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