RU108424U1 - PASSENGER LIFT FOR LOW-STOREY CONSTRUCTION - Google Patents

Abstract

 1. A passenger elevator comprising a load-carrying frame with vertical guides, a cabin and a counterweight, equipped with carriages with roller guide supports, a gearless electric drive with a pulley, counter pulley, ropes, enveloping the pulley and counter pulleys and attached to the cabin and a counterweight, characterized in that the load-carrying frame from a bent channel 200 x 80 x 6 mm in the form of interconnected sections. ! 2. The passenger elevator according to claim 1, characterized in that the sections of the load-carrying frame are rigidly interconnected vertically by channel plates with bolts, and horizontally by pipe ties. ! 3. The passenger lift according to claim 1, characterized in that each roller guide bearing is made in the form of a block consisting of two interconnected rollers with a polyurethane coating. ! 4. The passenger lift according to claim 1, characterized in that it is equipped with a load limiter made on the basis of a tensor device and mounted on the upper ends of the load-carrying ropes of the cabin. ! 5. The passenger lift according to claim 1, characterized in that the cabin is equipped with an electronic digital display associated with a tensor device and displaying information about the loading of the cabin. ! 6. The passenger elevator according to claim 1, characterized in that the ropes are attached to the load-carrying frame of the elevator through a rope tensioning device containing at least two springs per rope, providing a variable tensioning force of the ropes depending on the loading of the cabin.

Description

The proposed utility model relates to the field of engineering, namely to the production of passenger lifts (elevators) without a machine room (BMP), with gearless electric drive and cantilever cab placement (“backpack” type)

In the present description, technical terms are used in the following interpretation:

The “rope-pulley-counter-pulley” system is a kinematic diagram of a lifting device in which the ropes on which the cabin and the counterweight are suspended, in order to simplify the geometry of the rope groove, reduce its wear and at the same time increase the traction of the rope with the pulley, are enveloped (approximately) a pulley 180 degrees once, then a 180 counter pulley and then again a 180 pulley, and the pulleys themselves are made of block polymer ARKAIM-1006, having a coefficient of friction with metal - 0.3

Cabin carriage - the movable part of the lift installed in the rails, on which the cabin is installed, in which the passengers ascend and descend.

Counterweight carriage - the movable part of the lift installed in the rails, designed to balance the cab.

The block of guide rollers is a unit that includes two rollers, which rests on a shelf of a bent channel (guide) from different sides.

BEA - Gearless electric drive with asynchronous electric motor

Tensor restrictive information device - (TOINFO) - load limiter based on a tensor sensor, also transmitting information about the loading of the cab to the display in the cab

Section of the frame rack (mast) and guides - part of the frame rack (mast) adopted for structural reasons (for example, 2.5 m) as the basis for the assembly of the lift

Coupler - a part from a pipe with a thread at the ends for connecting the racks of the elevator frame in the section

Rope tensioning device (UNK) - a device containing at least two springs per rope, contributing to the uniform tension of load-carrying ropes

Cable elevators and elevators produced by such elevator companies as DomusLift (Liftinform magazine No. 4 for 2009), KONE and OTIS (Lift magazine No. 3-4 for 2007), Wittur - (elevators of the series) are known from the prior art. MRL W magazine “Lift” No. 2 for 2010), in which the principle of cantilever cab placement is applied, there is no machine room and gearless electric drives are used.

Known elevator, which is made without a machine room, and the winch which interacts with the hoisting ropes by means of a traction sheave, while these ropes have a bearing part woven from steel wire of round and / or non-circular cross section, and hold the counterweight and the elevator car moving along their guides, and the mass of the winch is approximately 1/5 of the nominal load of the elevator (RF Patent No. 2352514, IPC В66В 1/00, publ. 04/20/2009).

Recently, elevator designs have been developed in which the power mechanism is located in the space between the cabin and the opposite wall. In particular, elevators protected by RF patents for inventions No. 2319655, 2278812, 2302368 are known. In this configuration, the engine room is not required. Elevators of this type are commonly called elevators without a machine room.

The closest in technical essence to the claimed technical solution is an elevator, the drive of which does not contain a gearbox. The elevator has a cable drive, which is not installed in the machine room, with a drive pulley, onto which several parallel steel load-bearing cables are wound, a countershaft, a cabin, guiding cabs and a counterweight (RF Patent No. 2278812, IPC В66В 1/00, publ. 210.02.2005 g .).

The disadvantages of the known devices are a complex design that requires the installation of brackets, which are then attached to the T-rails of the cabin and counterweight, and the brackets themselves, in turn, are attached to the shaft.

The present utility model is based on the technical task of simplifying and reducing the cost of the elevator (elevator) design while maintaining the achievements of the above structures, such as:

lack of engine room

- energy saving in connection with the use of gearless electric drives with frequency regulation

- low noise

- security.

The stated technical problem is solved in that in a passenger lift containing a load-carrying frame with vertical guides, a cabin and a counterweight equipped with carriages with roller guides, a gearless electric drive with a pulley, a counter-pulley, ropes enveloping the pulley and counter-pulley and attached to the cabin and counterweight, according to the proposed utility model, the load-carrying frame is made of a bent channel 200 x 80 x 6 mm in the form of interconnected sections.

In addition, sections of the load-carrying frame are rigidly interconnected vertically by channel plates with bolts, and horizontally by pipe ties.

In addition, each roller guide bearing is made in the form of a block consisting of two interconnected rollers with a polyurethane coating.

In addition, the passenger lift is equipped with a load limiter, made on the basis of a tensor device and installed on the upper ends of the load-carrying ropes of the cabin.

In addition, the cabin is equipped with an electronic digital display associated with a tensor device and displaying information about the loading of the cabin.

In addition, the ropes are attached to the load-carrying frame of the hoist through a rope tensioning device containing at least two springs per rope, providing a variable rope tension force depending on the loading of the cabin.

Simplification and cheapening of the lift is achieved by carrying out the supporting structure of the vertical frame from a standard bent channel, on one of the shelves of which the counterweight moves with the blocks of the support guide rollers, and on the other - the cabin.

The essence of the claimed utility model is illustrated by drawings, where

in figure 1. presents a general view of the passenger lift;

figure 2 presents the load limiter, made on the basis of a tensor device (tensor restrictive information device (TOINFO)

figure 3. The block of guide rollers of the cab and counterweight is presented.

The inventive passenger lift contains (figure 1): 1 - a vertical frame (mast), 2 - a cabin with a bearing structure "backpack type", equipped with a carriage with roller guides, 3 - kinematic system "ropes-pulley-counter-pulley", including a pulley, counter-pulley, ropes enveloping the pulley and counter-pulley, 4 - gearless electric drive with an asynchronous electric motor (BEA), 5 - rope tensioning device (UNK), 6 - load limiter, made on the basis of a tensor device (tensor restrictive information device ( TOIN D) 7 - frame section 8 - sections covering, 9 - catcher 10 - counterweight ,, 11 - speed limiter, 12 - blocks the carriages supporting the guide rollers cab 2 and the counterweight 10; 13 - buffer.

The vertical load-bearing frame 1 is made of a bent channel of 200 x 80 x 6 mm, which serves as the load-bearing structure of the elevator and at the same time serves as guides for movement along the front shelf of the cab carriage, and on the rear - the counterweight. For ease of installation, it is made of sections 7. The most optimal section length is 2.5 m, but does not limit the size range of sections. Sections 7 of the load-carrying frame are rigidly interconnected vertically by channel plates with bolts, and horizontally by pipe ties 8.

The vertical frame with guides for the cabin, counterweight and with other functional devices can be attached to vertical load-bearing walls, to ceilings or to a metal frame shaft, made according to the drawings and calculations as part of the elevator (elevator) itself, which eliminates the need to install any kind of brackets for fastening traditional T-rails.

The ropes are attached to the load-carrying frame of the hoist through the rope tensioning device 5 (FIG. 2), containing at least two springs per rope, providing a variable tension force of the ropes depending on the loading of the cabin.

Each of the roller guide bearings (Fig. 3), moving with the carriage of the elevator car and the counterweight, is made in the form of a block 12, consisting of two vertically oriented rollers 14 connected to each other, spaced a predetermined distance relative to the axis 16 of the block with the help of cheeks 15, than achieved reduction of loads on each roller while maintaining the overall load on the unit as a whole, reducing noise during movement of the elevator car and the dimensions of the vertical frame in dimensions perpendicular to the direction of movement. The rollers are made with a polyurethane coating, which ensures low noise during operation of the elevator.

The passenger lift is equipped with a load limiter 6, made on the basis of a tensor device, for example, an UPS-3 elevator loading control device and installed on the upper dead ends of the cabin load-carrying ropes. An electronic digital display connected to the tensor device by communication channels is installed in the elevator cabin. Information about the weight loading of the cabin in the form of a digital message is transmitted to an electronic digital display. The presence of a weight measuring tensor device and an electronic digital display allows users to control the weight load of the elevator car, which significantly increases the safety of the elevator in operation.

The lift is assembled using bolted joints, the weight of the heaviest part is 36 kg.

The manufacturing results of the prototypes of the proposed passenger lift showed that the cost of the vertical frame (mast) of the lift from the standard bent channel, combining the functions of the guides for the cabin and the counterweight, even after additional processing costs (cutting lightweight windows, drilling holes, grinding shelves) by 20-30% lower than the cost of standard structures from T-rails, brackets and supporting structures, subject to the necessary strength (verified by calculation)

Gearless electric drive, supporting blocks of two rollers, grinding the shelves of the channel channel and the use of low-noise polyurethane rollers made it possible to achieve minimal noise at a speed of movement of the cab of up to 0.5 m / s, which meets the consumer requirements of elevators (elevators) for low-rise construction.

A low level of energy consumption is provided by the use of gearless electric drive 4.

The safety of the lift is ensured by regulatory tools and instruments, including TOINFO 6 device located under the rope tensioning device 5

Due to the small dimensions of the components and parts, the head of the elevator fits 2600 mm in height of the last floor, and the pit can be no deeper than 160 mm (or, when installed on the floor, a standard step forms)

Maintenance of the lift is carried out from inside the mine, or through openings in the upper part of the mine of the last floor.

Claims (6)

1. A passenger elevator comprising a load-carrying frame with vertical guides, a cabin and a counterweight, equipped with carriages with roller guide supports, a gearless electric drive with a pulley, counter pulley, ropes, enveloping the pulley and counter pulleys and attached to the cabin and a counterweight, characterized in that the load-carrying frame from a bent channel 200 x 80 x 6 mm in the form of interconnected sections. 2. The passenger elevator according to claim 1, characterized in that the sections of the load-carrying frame are rigidly interconnected vertically by channel plates with bolts, and horizontally by pipe ties. 3. The passenger lift according to claim 1, characterized in that each roller guide bearing is made in the form of a block consisting of two interconnected rollers with a polyurethane coating. 4. The passenger lift according to claim 1, characterized in that it is equipped with a load limiter made on the basis of a tensor device and installed on the upper ends of the load-carrying cab ropes. 5. The passenger lift according to claim 1, characterized in that the cabin is equipped with an electronic digital display associated with a tensor device and displaying information about the loading of the cabin. 6. The passenger elevator according to claim 1, characterized in that the ropes are attached to the load-carrying frame of the elevator through a rope tensioning device containing at least two springs per rope, providing a variable rope tension force depending on the loading of the cabin.