SU1229472A1 - Damper support - Google Patents

Description

This invention relates to mechanical engineering, in particular to damping supports.

The purpose of the invention is to increase the damping. FIG. 1 shows a transverse section of the damper bearing with a rolling bearing, with your inner sleeve; in fig. 2 is the same with a rotating outer ring; in fig. 3 - the same, with the sliding bearing.

The damper support comprises a housing 1 and an oscillation damping device 3 mounted on a rotating element 2, filled in the form of two concentrically mounted ones with a radial clearance of the gear sleeves 4 with teeth 5 directed towards each other and made of a trapezoidal shape, and placed between the said teeth 5 of self-wedging rigid bodies 6. In this case, one of the gear sleeves is made in the form of a rolling bearing cage or in a sub-shaft sliding sleeve.

When the rotor oscillates, friction arises on the working surfaces of self-sticking under the action of the centrifugal forces of the bodies and teeth of the sleeves. At the same time, under the action of the oscillation energy, the wedges are pushed out of the slots to the rotor axis, and the centrifugal forces are pressed against the teeth. Friction forces that reduce the amplitude of oscillations, and the forces normal to the lateral working surfaces of the wedges and

five

five

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The teeth deviating at the friction angle are determined by the centrifugal forces of the self-jamming bodies and their wedge angle. With an increase in the rotational speed, the rotor self-centering and an increase in the rigidity of the supports occur. The oscillation intensity will decrease if the outer or inner bearing race (depending on which of them is attached to the rotor) comes to a position where its raceway will automatically align itself coaxially with the axis of rotation of the rotor.

The damper support can work in the case of simultaneous rotation of the inner and outer collars at different values and directions of their relative speeds, as well as in the case of two- and multi-shaft rotor-1X systems. For heavy loaded shaft, the damper support may be double- and multi-fold.

Self-sticking bodies are provided with cheeks-masses 7 for fixing and developing additional centrifugal force, located along the radius and facing away from the axis. When assembling, self-locking bodies are installed between the teeth of the sleeves so that optimal gaps are guaranteed, and the bodies themselves can be made of plastics or other hard or elastic materials.

By performing such a damping support, the damping efficiency is improved.

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Compiled by G. Kuznetsova

Editor N. Danku.lichTechred I. VeresKorrektor O. Lugova

Order 2220/34 Draw 777 Subscription

VNIIPI USSR State Committee

for inventions and discoveries

113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

Claims (3)

1. DAMPING SUPPORT, comprising a housing and a vibration damping device mounted on a rotating element, characterized in that, in order to increase the damping efficiency, the vibration damping device is made in the form of two gear bushings concentrically mounted with a radial clearance with trapezoidal teeth facing towards each other and placed between these teeth self-jamming rigid bodies. 2. Support on π. 1, characterized in that one of the bushings is made in the form of a cage of a rolling bearing. 3. Support according to claim 1, characterized in that one of the bushings is made in the form of a plain bearing shell. Fig. '! yoo Dv b