SU1421944A1 - Electric drive with manual stand-by - Google Patents

Abstract

This invention relates to pipe fittings. The chain of the invention is to improve reliability of operation by simplifying kinematic connections. When the cam shaft 13 is pressed, the rotation of the flywheel 13 to the worm shaft 2 is transmitted along the kinematic chain of parts 13J 18J 19 2. The cylindrical wheel 5 is braked. When the drive is turned on, from the rotation of the wheel 5, the latter, together with the camshaft 13, is displaced from the cams 21 in the axial direction, the manual drive 6 with the worm shaft is disengaged. 1 il.

Description

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This invention relates to pipe fittings.

The aim of the invention is to improve the reliability of operation by simplifying the kinematic connections.

The drawing shows an electric drive with a manual backup, a slit.

In case 1, a gear motor with a worm wheel (not shown) is installed, which interacts with a worm shaft 2 on a bearing 3. A gear wheel 5 is mounted on a worm shaft 2 through a cam-type clutch 4, on which are curved and straight cams 6 and 7. The cam sleeve 4 is rigidly connected to the worm shaft by means of pins 8 and has cams 9. A hub 11 is mounted in the drive gear 10, mating with a movable spline connection 12c by a camshaft 13. On the hub 11 a flywheel 14 is rigidly mounted using the keys 15. Put The cam shaft 13 relative to the sleeve 11 is fixed by means of a retainer consisting of a spring 16 and a ball 17. On the cam shaft 13, cams 18 are made, which match cams 19, which are wired on a worm shaft 2. There is a collar 20 on the cam shaft 13. The housing 1 is provided with curved cams 21. The gear wheel 5 is spring-loaded through a washer 22 relative to the worm shaft 2 by an elastic element 23. In the cam shaft 13, holes 24 and 25 are filled.

The device works as follows.

When the cam shaft 13 is pressed, the rotation from the flywheel 14 to the worm shaft 2 is transmitted along the kinematic chain of parts 13; 18; nineteen; 2. The rotation from the flywheel to the wheel 5 is not transmitted, since the cams 7 and 9 of the wheel 5 and the cam clutch 4 are open. The cams (curvilinear) 6 and 21 are closed, i.e. the cylindrical wheel 5 is braked on the housing 1. When the engine (not shown) is turned on, the rotation is transmitted to the wheel 5, the rotation of which is due to the interaction of the curved cams 6

and 21, the wheel 5 together with the camshaft 13 is displaced axially up to the ball of the ball 17 into the hole 25. At the same time, the cams 18 and 19 are disengaged, and the cams 9 and 7 are engaged,

5, the resilient member 23 helps the wheel 5 and the camshaft -13 to move upwards. When the drive is controlled by the engine, rotation to the worm shaft is transmitted along the kinematic chain of parts 5, 7; 9;. 4 2. Rotation is not transmitted to the handwheel handwheel.

Claims (1)

Invention Formula five , An electric drive with a handwheel comprising a housing equipped with curved cams, inside which is placed a gear motor with a black wheel interacting with a worm shaft mounted on supports with a cam clutch fixed on it, a gear wheel mounted with axial movement along a camshaft , a flywheel with a lock and a return spring, characterized in that, in order to increase the reliability of operation, the gear wheel is placed on Q is a cam clutch, the return spring is mounted on a worm shaft between the shaft support and the wheel, and a collar is made on the cam shaft, covering the cam clutch and interacting with the front surface of the gear wheel.