RU2218298C1 - Lifting complex - Google Patents

Abstract

FIELD: civil engineering. SUBSTANCE: invention relates to lifting complex installed in residential and industrial buildings and set into operation by means of drive installed on lift. Proposed lifting complex contains lift with guide in which number of support members is secured made for rotation around axle of support member. Drive of lift is secured on movable frame and it contains driving gear installed for meshing of gear teeth with support members when movable frame travels along guide. Support made in form of support plate is arranged under lift. Guide is secured in support and is rigidly coupled with support by members compensating for tilting moments acting onto guide. Said members are made in form of box structure with doors. EFFECT: invention makes it possible to use proposed lifting complex without modification of building. 8 cl, 5 dwg

Description

 The invention relates to hoists installed in residential and industrial buildings and driven by a drive mounted on a hoist.

 Three types of lifting devices are known which can be installed in buildings. The first type is cable lifts, the mechanical drive of which is installed motionless in a special machine room, mainly with an upper arrangement. The second type is hydraulic lifts, the stationary power drive of which works from the pump unit. The third type - lifts with a mechanical drive mounted on a movable cab, which interacts with the support elements placed on the guide support.

 Each of these types of lifts has its own characteristics.

 The most widespread in buildings are cable lifts. However, they are not very suitable for use in low buildings. They require the construction in the upper part of the building of a special engine room, based on the walls of the building, fortified for this, in the area of the elevator shaft.

 Hydraulic lifts along with the advantages, which include smooth operation and low noise of the lift, also have several disadvantages. A significant amount of flammable liquid is poured into the hydraulic system of the lift - a working fluid based on oils. When the elevator is operating, their pairs are released into the environment, which leads to the need for forced ventilation of the mine and the premises.

 Lifts with a mechanical drive mounted on a movable cab, such as rack and pinion lifts, along with the advantages, which include simplicity of design and compactness, are also not without a number of disadvantages. These include noise and vibrations that occur during operation of the elevator, as well as the need to lubricate support elements, such as rack teeth, to reduce friction and wear. Therefore, this type of lifts, as a rule, is used for lifting goods, but is not installed as elevator lifts in residential buildings.

 The following constructions of hoists with a mechanical drive mounted on a hoist are known. For example, patent EP 870720, published on 10/14/98, IPC B 66 B 19/02, "Chassis for a transport lifting system", contains a support on which a support-guide column is fixed, which is transferred from the traveling position to the working one, mounted vertically. Lifting and lowering of the elevator is carried out using a hydraulic system that drives the rollers moving along the guide.

 Known lift according to US patent 5584363, published 12/17/96, IPC B 66 B 19/02, which contains a guide mounted on a movable support containing elements that prevent the tipping of the guide.

 Known transport device for the vertical movement of objects according to US patent 5782317, published July 21, 1998, IPC B 66 V 19/02, containing a box-shaped structure with a guide along which the drive device with the platform moves. The box-like structure contains a base and, as a whole, constitutes a lifting complex.

 All the above structures are not intended for use as elevators in buildings.

 Also known is the lift according to the patent of the Russian Federation 2107016, B 66 B 9/02, containing a guide, in which a number of support elements are fixed, made to rotate around the axis of the support element. The elevator drive is mounted on a movable frame and contains a drive gear mounted with the possibility of pairing the gear teeth with the supporting elements when moving the movable frame along the guide. The movable frame is equipped with locking rollers mated to the controversial-fixing surfaces of the guide.

 This design provides movement of the movable frame with a low level of noise and vibration. However, this lift does not include elements that ensure the functioning of the lifting complex when it is used in low-rise buildings.

 The claimed solution is aimed at solving the problem of creating a lifting complex, which can be applied in low-rise, including residential buildings. When installing the lifting complex, the alteration of the building is not required, including the strengthening of the walls in the place where the lifting complex is installed, and the creation of additional rooms. The lifting complex provides a low level of noise and vibration.

 The inventive lifting complex comprises a hoist with a guide, in which a number of support elements are fixed, made to rotate around the axis of the support element. The elevator drive is mounted on a movable frame and contains a drive gear mounted with the possibility of pairing the gear teeth with the supporting elements when moving the movable frame along the guide. The movable frame is equipped with locking rollers mated to the supporting-fixing surfaces of the guide. The complex is equipped with a support located under the lift. The guide is fixed in the support and is rigidly connected with the last elements, compensating tipping moments acting on the guide, and made in the form of elements of a box-shaped structure.

 The lifting complex is a finished product that can be mounted both in new buildings and built into existing ones without any significant alteration. Indeed, the complex contains a support, which serves as the foundation of the complex. The guide is rigidly fixed in the support and is connected with the support by elements compensating for the overturning guide moments associated with the operation of the elevator. A movable frame with a drive mounted on it moves along the guide. In the guide along its height, a number of support elements are fixed, made to rotate around the axis of the support element and mated with the teeth of the drive gear. Thanks to this meshing, which can withstand heavy loads and provides a low level of noise and vibration, the lifting complex can be used in residential buildings. The fixing of the driving gear of the drive relative to the supporting elements of the guide, as well as the movement of the movable frame provide locking rollers, paired with the supporting-fixing surfaces of the guide.

The invention has new and non-obvious properties, allowing to solve a problem that has not been solved previously. The lifting complex can be mounted in buildings without significant alteration, and in new buildings without taking additional measures to strengthen the supporting structures of the building, because:
- created in the form of an autonomous complex, to which it is only necessary to supply energy for the operation of the elevator drive;
- all the moments that arise during the operation of the elevator are perceived by the support, which is fixed on a separate foundation, not connected with the foundation of the building;
- during the operation of the complex there is a small level of noise and vibration, which does not affect the situation inside the building;
- supporting elements in the places of contact with the teeth of the pinion gear do not require lubrication, and therefore does not require retrofitting the room where the lifting complex is installed, ventilation to remove odors of oil. In addition, the lifting complex has the technical advantage associated with the simplicity and low cost of repairs. In this complex, power elements are subjected to drive elements and support elements mounted on a rail. In the event of unforeseen loads, the support element breaks, not the guide. Therefore, it is not necessary to change the entire guide, as, for example, when a tooth breaks in a rack gear in a rack gear, when it is necessary to change the entire guide. In the case of the invention, it is sufficient to replace the broken support element.

 When the support element breaks down, the elevator does not fall, it simply rests on the next support element in the downward direction.

 A row of shock absorbers can be installed on the box-shaped structure along its height, separating, decoupling the lifting complex from the structure of the building or structure where the complex is installed, and reducing the likelihood of potential contact of the complex structures with building elements without vibration and acoustic isolation. The box construction can be made of separate sections.

 In the particular case of the complex, the support is made in the form of a base plate and contains shock absorbers mounted under the base plate. In this case, the level of vibrations that can be transmitted to the building structure is further reduced.

 The supporting elements can be made in the form of bushings mounted for rotation on rods rigidly fixed in the guide.

 In addition, the supporting elements can be made in the form of rods mounted in bearings, which also reduces the level of noise and vibration when moving the movable frame.

 The guide may contain a cavity for cooling or heating the guide. In case of fire, the guide is cooled, for example, by running water, which protects the structure from deformation. When the elevator is placed outdoors, the supply of hot coolant protects the structure from icing. In addition, maintaining the temperature of the rail in a small temperature range increases the lifespan of the lift.

 In the particular case of execution, the box-shaped structural element has a doorway. Elements that compensate for moments tilting the support can be made in the form of braces.

 The guide can be made of separate sections.

 The invention is illustrated by drawings.

 In FIG. 1 shows a General view of the lifting complex; figure 2 - General view of the lift; figure 3 is a section of the guide; figure 4 is a section of the guide along the support element; figure 5 - design of the lifting complex without sheathing.

 The lifting complex (Fig. 1,5) contains a lift 1, which moves along a guide 2, in which a number of support elements 3 are fixed, made for rotation around an axis. The guide 2 is fixed in the support, which is made in the form of a base plate 7. Shock absorbers are installed under the base plate 7. A cabin 5 is installed on the movable frame 4 through the shock absorbers 6. The guide 2 is fixed in a box 9 with doorways 10. Elements of the box 9 are elements, compensating for the overturning moments of the guide 2. A number of shock absorbers 11 are installed on the box 9 along its height, decoupling the lifting complex from the structure 14 of the building or structure where the complex is installed. Box 9 can be made of separate sections 12. Elements of the box 9, compensating moments, overturning the guide 2, are made in the form of braces 13. In places of doorways, structural rigidity is given by reinforced ties 25 (Fig. 5).

 The drive 16 of the lift, which can be made in the form of an electric motor with a gearbox (Fig. 2), is mounted on a movable frame 4 and contains a drive gear 17. The movable frame 4 is equipped with locking rollers 19, interfaced with the supporting-fixing surfaces 18 of the guide 2 (Fig. 3). Locking rollers 19 may be several pairs spaced along the height of the movable frame 4.

 The guide 2 is made of separate sections 15 and contains a cavity 20 for cooling or heating the guide 2.

 The supporting elements 3 (Fig. 4) are made in the form of rods 21 fixed in bearings 22 and closed by covers 23 fixed by fasteners 24. This embodiment of the supporting elements 3 can further reduce noise and vibration, as well as increase the service life.

 The lifting complex is an autonomous mechanism and can be manufactured completely in the factory. In order to make it easier to transport to the customer and assemble on site, it can be made from separate sections. For example, a box 9 with doorways 10 is mounted from sections 12, including sections 15 of the guide 2.

 The base plate 7 is laid on the foundation of the building or on a separately prepared foundation (not shown) through the shock absorbers 11. Then the sections 12 of the box 9 are mounted. The structural rigidity is provided by the elements of the box 9. For its stability, especially the guide 2, the design of the box 9 compensates for overturning moments acting on the guide 2, contains braces 13.

 The lift 1 moves up and down with the drive 16 and the drive gear 17. The teeth of the gear 17 mate with the supporting elements 3 and move the movable frame 4 with the cab 5 mounted on it along the guide 2. Due to the fact that the drive uses a pinion gear, in which supporting elements 3 rotate around its axis, the drive operates without vibration and with little noise. The orientation of the pinion gear 17 relative to the support elements 3 provide the locking rollers 19 of the movable frame 4, which also provide a stable position of the movable frame 4 relative to the guide 2.

 Water or air can circulate in the cavity 20 of the guide 2, providing cooling of the guide in the event of a fire, or heating the lift to ensure its operation in the cold season. The lifting complex can be produced in the factory and can be quickly mounted on site without a significant alteration of the building. All elements of the complex can be manufactured as part of in-line production.

 The construction of the complex is easy to maintain, as it does not require expensive repairs, since each element of the complex is easily replaceable.

 With the help of this design, the lift solves the problem of creating a reliable elevator for low-rise buildings, providing a sufficient level of comfort, with a low cost of manufacture and repair.

Claims (8)

1. A lifting complex comprising a hoist with a guide, in which a number of support elements are fixed, rotatably rotatable around its axes, a hoist drive mounted on a movable frame and comprising a pinion gear mounted to couple the gear teeth with the supporting elements when moving the movable frame along the guide, while the movable frame is equipped with locking rollers mated to the supporting-fixing surfaces of the guide, characterized in that it is equipped with a support, located first under the lift, and the guide is fixed to the support and is rigidly connected to the last element, compensating tilting moments acting on the guide, and made in the form of a box-like structure elements. 2. The lifting complex according to claim 1, characterized in that a number of shock absorbers are installed on the box structure along its height, separating the complex from the structure of the building or structure where this complex is installed. 3. The lifting complex according to claim 1, characterized in that the support is made in the form of a base plate and contains shock absorbers mounted under this plate. 4. The lifting complex according to claim 1, characterized in that the supporting elements are made in the form of bushings mounted for rotation on rods rigidly fixed in the guide. 5. The lifting complex according to claim 1, characterized in that the supporting elements are made in the form of rods mounted in bearings. 6. The lifting complex according to claim 1, characterized in that the guide contains a cavity for cooling or heating the guide. 7. The lifting complex according to claim 1, characterized in that the guide is made of separate sections. 8. The lifting complex according to claim 1, characterized in that the box-shaped structure element has a doorway.

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