SU1521960A1 - Friction planetary gear - Google Patents

Abstract

The invention relates to friction gears used in various drives of machines and devices. The aim of the invention is to increase the reliability of transmission by reducing the wear of friction surfaces by eliminating residual deformations in these surfaces. The transmission contains a cover 7 which is spring-loaded in the axial direction and connected to the housing 1 by a threaded connection 9. After the work is finished, the frictional contact between the central wheels 4, 5 and 6 with the satellites 10 is stopped by axial movement of the cover 7. 1 Il.

Description

(21) U287i 90 / 25-25

(22) 07.20.87

(6) 11/13/89. Bul № 2 (72) E.F.Mironov, I.F. Advena, L.V. Vitebsk and A.I. Golovan (53) 621.839 (088.8)

(56) Rudenko N.F. Planetary gears. M .: p.159, fig-38.

(5) FRICTION PLANETARY TRANSMISSION

(57) The invention relates to friction gears used in various drives of machines and devices. Purpose

the invention is to increase the reliability of transmission by reducing the wear of friction surfaces by eliminating residual deformations in these surfaces. The transfer contains an axially spring-loaded cover 7 connected to the housing 1 by a threaded connection 9. After the end of the work, the frictional contact between the central wheels 4, 5 and 6 with the satellites 10 is stopped by axial movement of the cover 7. 1 sludge.

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The invention relates to machine building, namely friction gears, which are used in various (x drives of machines and devices.

 The aim of the invention is to improve the reliability of the transmission operation to reduce wear on the friction surfaces of the wheels by eliminating the permanent deformation of these surfaces in operation.

The drawing schematically shows the planetary friction transmission.

The transmission includes a housing 1, leading and driven shafts 2 and 3, axially spring-loaded central wheel t with an outer conical surface, central wheel 5 with an internal conical surface fixed in housing 1, a central wheel 6 with an internal conical surface connected to the driven Eal 3, the supports of which are placed in the lip 7, spring-loaded in axial tilt relative to the housing 1 by a spring 8 and connected to it by a threaded joint 9

The transmission also contains a carrier with Duplex satellites 10 with external conical surfaces, between the large bases of the cones of which there is an elastic element 11.

Transmission works as follows.

I When the drive shaft 2 rotates, the central wheel rotates, the outer friction conical surface of which, due to the spring, provides frictional contact with one of the rims of the satellites 10, the other crown of the satellite 10 interacts with the inner conical surface of the central wheel 6 and the led

Compiled by L. Bushmarin Editor U. Sereda Tehred M. Khodanych

Order 6930/3 t

Circulation 721

VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. D. 4/5

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It rotates together with the driven shaft 3. After the transfer operation finishes using the threaded joint 9 and under the action of the spring 8, all interacting wheels are removed from the friction contact, thereby keeping them from residual deformations in the contact areas state, especially if the specified friction surfaces are made of polymeric materials. The absence of residual deformations improves the transmission reliability, ensures the preservation of the required accuracy and reduces the wear of the friction wheels.

Claims (1)

Invention Formula A planetary friction gear, comprising a housing, driving and driven shafts, a central wheel with an outer conical surface, connected to a drive shaft, a central wheel with an internal conical surface, fixed in the housing, a carrier with two-tiered satellites with outer conical surfaces, between large bases the cones of which an elastic element is installed, characterized in that, in order to increase reliability in operation by reducing wear on the friction surfaces of the wheels, the transmission is equipped with an additional element a single central wheel with an inner conical surface connected to the driven shaft, a lid with supports for the driven shaft, axially spring-loaded relative to the body, and a threaded connection connected with it, and a central wheel with an outer conical surface- axially . Proofreader T.Paly Subscription