SU598831A1 - Elevator - Google Patents

Description

(54) LIFT

The invention relates to lifting mechanisms, in particular to construction hoists. A lift is known, which comprises a vertical column on which a rack and pinion is mounted, interacting with a notched spike, kinematically connected with a lift drive, consisting of a gearbox and an engine, and a lifting cabin 11. However, the operating conditions of the toothed peftKH with this technical solution are unsatisfactory, since during the operation of the lift from the gear wheel side, the rail has significant dynamic loads, as well as the horizontal component of the lift force, which in turn reduces the reliability of the lift as a whole. The purpose of the invention is to increase the operational reliability of the elevator due to the reduction of the dynamic loads acting on the rail. This is achieved by the fact that the drive lift nick is equipped with a flexible shaft connecting the gearbox and the engine, which is rigidly fixed to the cab frame. FIG. 1 shows a lift, side view; in fig. 2 - the same, front view; FIG. 3- drive mounted on the cab frame; on fng. 4 - drive with brake mounted on the cab frame. Lift assembly column 1, which is fixed gear rack 2, interacting with gear wheel 3 and the pressure roller 4, gear 5 with brake 6, connected through a hinge 7 with an intermediate element 8 connected through a shaft (hole 9 and elastic element 1O through the finger 11 with the frame 12 of the cab, jaepnutBaemoy on the column 1 rollers 13. The drive motor 14 is rigidly fixed to the frame 12 of the cab and connected to the shaft 15 of the reducer 5 by means of a flexible shaft 16. In another embodiment, the brake 6 is rigidly fixed to the frame 12 of the cab with locally with an engine of 14. B cargo and passenger version lift brake 6 preferred ustaiavlkvat

together with the gearbox 5, and in the cargo version, the brake is preferably installed together with the engine.

The lift works as follows. The engine 14 is turned on. Torque from engine 14 is transmitted through shaft 16 and gearbox 5, wheel 3, which, moving on rail 2, drives the cab through the hinge, 7, pin 11 and element 10.

When a force arises, a sudden change in speed occurs, as the drive moves, as a result of which the element 10 is additionally deformed by a certain amount. After the removal of the unresponsive force, the additional deformation of the j element 10 is removed. In this case, a short-term deformat of the 10-member on the frame of the cab with a significant inerdioin mass eliminates the dynamic effects on the elements of the lift, resulting in a smooth and smooth running of the cab.

Due to the rigid mounting of the engine brakes on the cab frame and the engine coupled to the gearbox by means of a 25 flexible shaft, the floor loads are further reduced.

The proposed design allows for the possibility of eliminating negative dynamic effects on the elements of the elevator.

In the famous lifts these influences,. VIA arise due to errors in assembly, irregularities of the rail, gaps, its joints, as well as due to the influence of unbalanced rotational-xc masses.

The application of this technical solution in production will provide a significant improvement in the working conditions of the elements of the hoist, in particular its rails, and will increase its operational reliability.

F

formula and acquisitions

An elevator containing a vertical collar, on which a rack and pinion is engaged, interacting with a gear wheel, kinematically coupled to a hoist drive consisting of a gearbox and an engine, and a load-lifting cable, which is in order to increase operational reliability by reducing the dynamic loads acting on the rail, the elevator drive was equipped with a flexible shaft that connects the gearbox to the driver, which is rigidly fixed on the cab.

Sources nffs madnj, taken in vvvmaniye during examination:

1. USSR author's certificate No. 523017, M. klyyav 66 V 9/02, 28.03.75.

  v S

N

S

x

FIG.

Ft, g