RU1991U1 - LIFT DRIVE - Google Patents

Abstract

ELEVATOR DRIVE, comprising a gearbox, an electric motor and a brake, including levers with brake linings, manual and electromagnetic brake devices, characterized in that the electromagnetic brake device is made in the form of two electromagnets, each of which is installed with the possibility of direct impact on the lever with a brake lining, this manual brake device is located between the electromagnets and is made in the form of a wedge fixed to the lever, interacting with its surface awns with anchors of electromagnets.

Description

5-II / 04

The utility model relates to elevator construction, namely, to drive devices of elevators, and can be used in other hoisting-and-transport machines.

A known elevator drive containing a gearbox, an electric motor and a brake device, which is a system of levers with pads and an electromagnet lj

The disadvantage of this device is the increased material consumption and increased power consumption.

The closest in technical essence and the achieved result is the elevator drive, which includes a gearbox, an electric motor and a brake, consisting of levers with overlays and brake devices in the form of an electromagnet and a JlSj handle.

A disadvantage of the known drive is complexity

design, due to the longer kinematic chain of the action of the electromagnet on the levers with brake pads, increased metal consumption, increased energy consumption and high noise level caused by the large stroke of the magnet armature.

The objective of the utility model is to simplify the design, reduce the metal consumption of the elevator drive and the energy consumed by it, increase the reliability and durability of the drive due to the possibility of stepwise regulation of the braking torque, as well as reduce the level of the elevator drive

Aya noise.

The task is achieved by the fact that in the elevator drive containing a gearbox, electric motor and brake, including levers with brake linings, manual and electromagnetic brake devices, electromagnetic brake device is made in the form of two electromagnets, each of which is installed with the possibility of direct impact on the brake lever pad, which makes it possible to stepwise regulation of the braking torque, reducing the stroke of the armature of the electromagnet, which reduces consumption My power and reduced metal content and also to reduce the noise level of the elevator drive. In addition, a manual brake device is located between the electromagnets and is made in the form of a wedge mounted on a lever and at the same time interacting with its surfaces with the anchors of the electromagnets, which allows the use of manual brake with less effort and greater ease of use during installation, commissioning and repair-emergency operations .

In FIG. I shows the elevator drive, general view;

In FIG. 2 - a brake; At the firm.Z-manual brake The elevator drive contains a gear I with fixed to

electric motor 2, in the connection zone of which a brake 3 is placed, including levers 4 with brake linings, an electromagnetic brake device

device.

.in the form of electromagnets 5 and b, mounted in an arm 7, each of which is installed with the possibility of direct impact on the lever 4, and a manual grind device 8, made in the form of a wedge 10 mounted on the lever 9, interacting with its surfaces with the anchors II of the electromagnets 5 and b. The manual brake device 8 is located between the electromagnets 5 and b and is installed in a fixed position using the restriction bushings 12 on the axis 13. in the bracket 7. The elevator drive operates as follows. Upon receipt of a command for the movement of the elevator, the motor 2 is turned on. Simultaneously, power is supplied to the electromagnets 5 and b, which, acting on the levers 4 with brake pads, send out braking force, after which the elevator car starts to move.

After the command to stop, the motor 2 is turned off and the power is removed from the electromagnets 5 and b.

The levers 4 come to their original position, there is a braking moment and the elevator drive stops.

With stepwise regulation of the braking torque, the supply and removal of power to the electromagnets 5 and b is not carried out simultaneously.

If necessary, brake the drive manually

act with a manual brake device 8 on the lever 9 with a wedge 10 fixed to it.

Wedge 10 with its surfaces simultaneously acts on the armature II of electromagnets 5 and 6, which squeeze levers 4 with brake pads, the braking force is removed ..

When the impact on the manual brake device 8 ceases, the brake returns to its original position and the drive brakes.

The inventive utility model allows to reduce the noise level of the drive, reduce its metal consumption, reduce energy consumption, increase reliability and durability.

Sources of information taken into account:

1.Raykov E.I., and Gruzinov E.V. Directory of a young elevator installer. M. Higher School, 1990 s, 88, fig. 57 (b).

2.Colonels B.C. and other installation of elevators. M. Higher School, I98I, p.17, rice, b (prototype).

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Claims (1)

ELEVATOR DRIVE, comprising a gearbox, an electric motor and a brake, including levers with brake linings, manual and electromagnetic brake devices, characterized in that the electromagnetic brake device is made in the form of two electromagnets, each of which is installed with the possibility of direct impact on the lever with a brake lining, this manual brake device is located between the electromagnets and is made in the form of a wedge fixed to the lever, interacting with its surface awns with anchors of electromagnets.