SK221192A3 - Device for turning of a hanged load - Google Patents

Abstract

The device for turning a load hanged on a hook of a lifting mechanism or conveying plant around a vertical axis is described. The turning of a load occurs as result of the gyroscopic moment effect that appears during the tilting of two rotating flywheels.

Description

Technical field

BACKGROUND OF THE INVENTION The present invention relates to a device for rotating a hanging load about a vertical axis, which operates by utilizing the gyroscopic moment of a rotating heavy symmetrical flywheel.

BACKGROUND OF THE INVENTION The rotation of loads suspended on a hook of a lifting or conveying machine, e.g. The crane is carried out mainly by hand around the vertical axis, which requires physical effort and is a source of frequent occupational accidents. Only ancillary or auxiliary rotary devices with mechanical, electrical, hydraulic or pneumatic drive are used only occasionally. They usually have a complicated construction, complicated power distribution, demanding maintenance and require interventions in the construction of the crane.

SUMMARY OF THE INVENTION

These drawbacks are eliminated by a rotating device which operates on the principle of utilizing the gyroscopic moment of the rotating flywheel.

The principle of the invention consists in utilizing the gyroscopic moment of two rotating heavy symmetrical flywheels mounted on the shafts of electric motors and tilting about the horizontal axis by means of toothed segments. The toothed segments are tilted by means of a toothing formed on the outer surface of the movable nut in a vertical direction by means of a movement screw via a shaft coupling from a reversely coupled electric gearbox. The tilting of the rotating flywheels in the vertical plane generates a gyroscopic moment which causes the hanging load to rotate in the horizontal plane.

In particular, the use of a gyro torque device to rotate the hanging load will eliminate the strenuous and risky work of the binder. This eliminates the need to interfere with the construction of the crane, reduces the need for operation and maintenance of the rotating device. Compared to other devices, the proposed pendulum rotation device is characterized by low energy consumption.

Image overview

The attached figure shows schematically an embodiment of a pendulum rotation device according to the invention.

DETAILED DESCRIPTION OF THE INVENTION

The device consists of an electric transmission X, which is fixedly connected to the movement screw 3 by a shaft coupling 2. The movement screw 2 passes through the movable nut 6 and is mounted at the upper end in the housing of the movement screw 2. ^{On the} outer surface of the movable nut 4, a rack-and-pinion toothing is formed on two sides, into which two toothed segments 6 engage. The toothed segments 2 ^with chairs 2 form fixed units rotatably mounted on fixed pins 11 and are suspended by means of brackets 2 which are fixed. On the chairs 8 are mounted electric motors T. with flywheels 10 mounted on their shafts. The whole device is housed in a housing 12 which forms its housing. Upon actuation of the electric motors 7, the flywheels 10 are rotated. The toothed segments 6 tilt the electric motors 7 with flywheels 10 about the axes of the fixed pins 11 in a vertical plane. By tilting the rotating flywheels 10, a gyroscopic moment is generated which causes the hanging load 16 to rotate about a vertical axis in a horizontal plane. When the rotating flywheels 10 are in the neutral position, i.e. when their axis of rotation is horizontal, the gyroscopic moment does not occur and the load 16 does not rotate. 10 and the load 16 also in the directions indicated by I. When the gearbox X is rotated in direction II. the above components and the load 16 will also move in the directions marked II. Rotation of electric gear χ in direction I. or II. it is secured by its reverse connection. Deceleration of the rotational movement of the load 16 is made possible by switching the operation of the electric gearbox 1 in the opposite direction.

Industrial usability

The pendulum rotating device according to the invention can be used in landfilling, in the assembly of parts of technological equipment, in the installation of machines on foundations, in the positioning and assembly of panels and components, in the construction of buildings, roads and bridges, in reloading and handling in the removal of obstacles after accidents and natural disasters, etc.

Claims (1)

p λ T E N T E C O R T E R T C A T A device for rotating a hanging load, characterized in that it consists of an electric gearbox (1) driving, via a shaft coupling (2), a movement screw (3) sliding the movable nut (4) in a vertical direction. the toothed segments (6) rigidly connected to the chairs (Q) for electric motors (7) with rotating flywheels (10) around the axes of the fixed pins (11), generating a gyroscopic moment causing rotation of the hanging load about the vertical axis.