SU796594A1 - Sealed input - Google Patents

Description

(54) ENERGY INPUT

one

The invention relates to a sealing technique and can be used for hermetic transmission of rotational movement through a wall separating two media under different overpressure or under vacuum.

Known sealed input containing the leading and driven shafts, ending with eccentrics installed in the ball bearings of the disk, a flexible element-annular diaphragm, fixed on the inner contour with screws to the disc, and on the outer contour between the stationary flanges of the apparatus. The flexible member is a wall separating media with different pressures.

The torque from the veduya shaft is transmitted to the slave through a disk, which coBejxiiaeT circular movements. At the same time, the flexible element-diaphragm undulates the movement of the disk.

For protection against twisting, a screw is provided, the heads of which are inserted into the restrictive holes 1.

However, the well-known input can work — only at low rotational speeds of rotation and low pressure ratios — and can also transmit small powers.

A significant drawback is the presence of the screw heads hitting the walls of the restrictive holes at high speeds of rotation at the moment of the beginning of rotation and stopping, besides with significant pressure drops due to the strength conditions, thickness

o tibkogo element-diaphragm should be increased. This will significantly reduce the flexibility of the diaphragm and reduce the resource of its work.

The purpose of the invention is to increase the durability and the expansion of the range of pressure applications.

This goal is achieved by the fact that in the proposed input the flexible element is made in the form of a glass of

0 elastic material, such as rubber, covering the spring, one end of which is fixed on a movable disk, the other - on the body, input. Spring protects the glass from

5 removal under the influence, pressure, and also protects the glass from sticking together and extinguishes the impact when starting and stopping the engine.

The drawing shows the input, longitudinal section.

Claims (1)

^J claims A sealed input containing a housing in which the drive and driven shafts with eccentrics' are mounted on the ends fixed in the disk bearings and a flexible element, characterized in that, in order to increase durability and expand the range of application for 15 pressure, the flexible element is made in in the form of a cup of elastic material covering a spring, one end of which is fixed in the disk, and the other in the body.