RU2739236C1 - Elevator - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: invention relates to lifting machines, particularly, to elevators. Lift comprises cabin (2) arranged to move in elevator shaft between landing floors. To the roof of the cabin by its end the upper part of the rope is attached, which passes through the lifting mechanism, which is rigidly fixed in the upper part of the shaft, after the lifting mechanism, the upper part of the rope is rigidly attached to the upper part of counterweight (7). When cabin (2) is lowered, counterweight (7) together with set of permanent magnets (16) rises upwards and its magnetic field crosses coils of electric winding (12), inducing an electromotive force in them, as a result, in the circuit consisting of electrical winding (12) and electric accumulator (15), electric current starts to flow, charging electric accumulator (15). When cabin (2) is lifted, control device (14) is actuated to disconnect electric circuit consisting of electric winding (12) and electric accumulator (15). As a result, electromechanical force preventing cabin lifting (2) is not created.

EFFECT: technical result consists in expansion of functional capabilities of device due to generation of electric energy.

1 cl, 1 dwg

Description

The invention relates to the field of lifting machines, and in particular to elevators designed for lifting and lowering goods and passengers.

Known cable elevator with a compartment or shaft for accommodating a movable car and a device containing at least one fixed winch, and a movable counterweight for moving the car, in which, with each movement of the car, the counterweight makes movements that are shorter than the movements the cabin, in this regard, the upper part of the shaft is always free to accommodate the winch (RU 2003106423, В66В 1/00, 10.07.2004).

The use of a rope elevator only for the transportation of goods and passengers causes its disadvantage - a narrow functional range.

Known elevator (RU 2615816, В66В 1/24, В66В 5/02, 04/11/2017), selected as a prototype and containing an elevator car made with the ability to move in the elevator shaft between landing floors located at different heights. A rope is attached to the cabin at one end, the other end of which is attached to the counterweight. The elevator also contains a hoist for moving the elevator car and controls for operating the hoist. The control means are configured to control the speed of the elevator car. The elevator also contains means for determining the building motion data, which describes the amount of building motion, and means for determining the data about the initial position of the car.

This elevator has a narrow functional range, because it can only be used to transport goods and passengers.

The objective of the invention is to expand the functionality of the elevator by generating electrical energy.

The technical result is achieved by the fact that in an elevator installed in a building containing an elevator car made with the ability to move in the elevator shaft between landing floors located at different heights, the upper part of the rope passing through the hoisting mechanism is rigidly attached to the roof of the car with one end fixed in the upper part of the shaft, after the lifting mechanism, the upper part of the rope is rigidly attached to the upper part of the counterweight, and the lower part of the rope is rigidly attached to the lower part of the counterweight, which, through a block rigidly fixed to the bottom of the shaft, is attached to the bottom of the cabin with its other end, on the side a longitudinal magnetic circuit is rigidly fixed to the wall of the shaft facing the counterweight, in the grooves of which an electric winding is laid, the leads of which are connected through a control device to an electric storage, and on the side wall of the counterweight, located in response to the longitudinal magnetic circuit, a set of permanent magnets alternating with polarity.

The drawing shows an elevator installed in a shaft.

The elevator installed in the building, in the shaft 1, contains a car 2, with the ability to move in the elevator shaft 1 between landing floors 3 and 4, located at different heights. The upper part of the rope 5 is attached to the roof of the cabin 2 at one end, passing through the lifting mechanism 6, for example, a one- or two-speed asynchronous electric motor with a squirrel-cage rotor. The lifting mechanism 6 is rigidly fixed in the upper part of the shaft 1. After the lifting mechanism 6, the upper part of the rope 5 is rigidly attached to the upper part of the counterweight 7. The lower part of the rope 8 is rigidly attached to the lower part of the counterweight 7, which is rigidly fixed to the bottom of the shaft 1 through block 9 , with its other end attached to the bottom of the cabin 2, on the side wall 10 of the shaft 1 facing the counterweight 7, the longitudinal magnetic circuit 11 is rigidly fixed, in the grooves of which the electrical winding 12 is laid, for example, made according to the loop or wave scheme (Voldek A.I. Electric machines. Leningrad: Energiya. 1974. S. 593-594), the leads 13 of which are connected through the control device 14 to the electric storage 15, for example, a storage battery or a capacitor bank. The control device consists of a breaker and a sensor for the direction of movement of the car 2, which are not shown in the drawing. On the side wall of the counterweight 7, located in response to the longitudinal magnetic circuit 11, a set of permanent magnets 16 of alternating polarity is rigidly fixed.

The elevator works as follows: when the cabin 2 is lowered from landing floor 3 to landing floor 4, the counterweight 7, together with a set of permanent magnets 16, rises up. The magnetic field created by a set of permanent magnets 16 crosses the turns of the electric winding 12, inducing an electromotive force in them, as a result of which an electric current begins to flow in the circuit consisting of the electric winding 12 and the electric storage 15, charging the electric storage 15. Accumulated in the electric storage 15, energy can later be used as an additional source for the lifting mechanism 6 or for interior lighting of the cabin 2.

When the car 2 is lifted from the landing floor 4 to the landing floor 3, the control device 14 is triggered, opening the electrical circuit consisting of the electrical winding 12 and the electric storage 15. As a result, no electromechanical force is created that prevents the lift of the car 2.

As you can see, an additional function is observed in the claimed device - the generation of electrical energy, which expands the functionality of the elevator.

Claims (1)

An elevator installed in a building containing an elevator car made with the ability to move in the elevator shaft between landing floors located at different heights, the upper part of the rope is attached to the roof of the car with one end, passing through a lifting mechanism rigidly fixed in the upper part of the shaft, after of the lifting mechanism, the upper part of the rope is rigidly attached to the upper part of the counterweight, and the lower part of the counterweight is rigidly attached to the lower part of the rope, which, through a block rigidly fixed to the bottom of the mine, is attached to the bottom of the cabin with its other end, characterized in that on the side wall of the mine, facing the counterweight, a longitudinal magnetic circuit is rigidly fixed, in the grooves of which an electric winding is laid, the leads of which are connected through a control device to an electrical storage, and a set of permanent magnets of alternating polarity is rigidly fixed on the side wall of the counterweight located in response to the longitudinal magnetic circuit.

Images