RU2667426C1 - Device for repair and maintenance of inclined surfaces of buildings and structures of large sizes - Google Patents

Abstract

FIELD: transportation.SUBSTANCE: device for repair and maintenance of inclined surfaces of buildings and structures contains guide beams located on the roof, a cargo platform on which is mounted a cargo trapezium, a working basket and a cable system. Wall of the working basket facing the surface of the structure serves as a pile support of the basket and is made in the form of a brush surface with a densely packed bearing pile.EFFECT: access is provided to any section of the structure with the fixation of the cargo basket.1 cl, 2 dwg

Description

Field of Technology:

The invention relates to the field of construction, repair and restoration, as well as maintenance of large-sized buildings and structures having large inclined surfaces.

The prior art:

As a prototype of the invention, “A device for lifting loaded dump trucks onto a quarry and lowering empty dump trucks into a quarry” was adopted, Patent of the Russian Federation RU 2566832 C2. The device described in the RF Patent RU 2566832 C2 has the following differences from the proposed invention:

- trolleys for placing dump trucks as supports have roller (wheel) supports;

- the truck is in rigid contact with the inclined surface and rests on it by means of wheels through which the load from the cargo truck is redistributed to the inclined surface in the form of concentrated loads from each wheel;

- the freight trolley moves only in a given inclined corridor and does not have the ability to move in a direction perpendicular to the inclined corridor in the horizontal direction;

As analogues, inclined cable hoists and inclined cable-rope hoists were considered according to the Patents of the Russian Federation RU 2501730 C2, RU 2234452 C1, RU 2168630 C1, RU 2022905 C1, RU 2009099 C1, RU 2537930 C1. However, they all have the same main and common differences for everyone from the present proposed invention as the invention according to the RF Patent RU 2566832 C2.

Known lifts for Patents of the Russian Federation RU 2442621 C1, RU 2355623 C2 and RU 2351528 C2. However, these devices differ from the proposed invention in that their cargo baskets move strictly in the vertical direction along rigid guides fixedly mounted in the outer wall of the building or structure, or being part of this structure. The aforementioned lifts are designed exclusively for vertical movement.

An analogue of the proposed invention is contained in the Application for the grant of a patent of the Russian Federation for invention 2016122495 dated 06/07/2016 "Device for the repair and maintenance of inclined surfaces of buildings and structures of large sizes." However, unlike the proposed device, the device according to Application 2016122495 from 06/07/2016 has the following differences:

- the cargo basket does not have a brush surface as a pile support;

- the cargo basket rests on two bearing cable branches and moves along them over an inclined surface;

- any contact of the work basket with the inclined serviced surface is excluded.

A patent study allows us to state that the proposed "Device for repair and maintenance of inclined surfaces of buildings and structures of large sizes" has an obvious novelty in comparison with the studied analogues and contains all the features of the invention.

Disclosure of the invention:

The device is designed to work in hard-to-reach places at high altitude when repairing and servicing radiolucent shelters (RPU) of large inclined antenna sheets and contains:

- guide beams mounted on the roof of the structure;

- cargo platform;

- cargo trapezoid;

- work basket;

- pile support of the work basket;

- drives for changing the departure of the cargo trapezoid;

- drive lifting and lowering the work basket;

- rope catchers;

- rope system;

- fastening elements of structures;

- means of ensuring the safety of work.

The essence of the proposed invention is that:

- the device has a working basket, in which the wall facing the inclined surface acts as a pile support of the basket and is made in the form of a brush surface with a densely packed carrier pile, designed to absorb the load from the equipped basket, transfer and evenly distribute this load to the serviced inclined surface structures within the entire area of the pile support. Radiolucent shelter (RPU) is made of composite materials and has a limited bearing capacity, designed to absorb loads at maximum wind pressure in the area of dislocation of the structure. The pile support accepts the load from the equipped work basket and evenly distributes it to the inclined surface of the RPU, providing a specific pressure on the surface of the RPU several times less than the standard wind pressure in the climatic region of the structure;

- the work basket, when raising and lowering, slides along the surface of the RPU on the pile support without damaging the surface of the RPU;

- the work basket is stored on a loading platform located on the roof of the structure;

- the working basket is brought out above the RPU, lowered to the surface of the RPU and removed from the surface of the RPU using the cargo trapezoid, drives for changing the departure of the cargo trapezoid and the drive for lifting and lowering the cargo basket.

The invention is associated with the rapid development of the construction industry, the creation of buildings and structures of large sizes and complex configurations. Buildings and structures of great height appeared, with complex external contours, including inclined, oblique and curved surfaces. For the repair of such surfaces, their maintenance requires original technical devices.

In modern buildings with new architectural concepts of facades, inclined, oblique and curved glazed surfaces are used, however, the characteristic dimensions of inclined and oblique surfaces rarely exceed 20 meters. Due to their small size and light loads, such fixed surfaces are usually provided with stationary openwork metal structures in the form of bridges, racks, stairs, arches, etc. with fences and insurance for workers during the work. All these structures are elements of architectural decor, are additionally used as advertising structures and do not negatively affect the appearance of a large building or structure.

In recent years, large-sized structures have appeared, having inclined surfaces measuring more than 50 m both in height and in width. Such structures, in particular, include stationary radar stations of the Missile Attack Warning System. The fixed inclined antenna sheet of such a radar station has dimensions up to 60 m both in width and in height. From the effects of rain, snow, atmospheric dust, sudden gusts of wind, direct solar radiation, accidental and deliberate physical influences from the outside, the antenna sheet is protected by a radiotransparent shelter (RPU). A radiotransparent shelter is installed so that between it and the antenna sheet there is a guaranteed air gap. The radiotransparent shelter is made of composite polymer materials, has a limited bearing capacity and therefore cannot withstand large loads exceeding the capabilities of the RPU material. One of the main tactical and technical characteristics of a radar station is the ability to quickly perform the sequence of the following technological operations: turning off the antenna, deploying the Device for repair and maintenance to its working position, putting it on the antenna sheet over the damaged section of the RPU, repairing and servicing the damaged section of the RPU, and outputting the Device for repair and maintenance from the antenna sheet and turning it into a non-working position, turning on the antenna and returning it to normal operation you.

The creation of bridge and staircase metal structures for servicing the RPU of such an antenna sheet is practically excluded due to the following reasons:

- The normal operation of a radar station to a large extent depends on the presence of passive interference generated at the input and output of the radar station as a result of the scattering of electromagnetic waves by objects located both in the radiation and reception of radio waves, and in close proximity to the front of the antenna sheet in the area of the spatial angle 120 ° around the perpendicular to the antenna sheet throughout its area. Therefore, in these areas should not be any metal and other radio-opaque structures and objects, because these obstacles and interference lead to the appearance of scattering, reflecting, resonant and other factors that distort the information being processed and lead to inaccurate data on the observed or accompanied air or space object.

- Creation of mobile bridge span structures such as a transborder with a span of about 60 m without intermediate supports for servicing the RPU antenna is a difficult technical task related to ensuring the strength and spatial rigidity of both the bridge structure and the antenna bearing structure. Such a design will be large and heavy, for its movement above the antenna sheet, powerful drive devices will be required. To remove such a structure from the front of the antenna sheet without dismantling it is an even more difficult technical task. In addition, the creation of such structures requires large financial costs, the use of unique equipment and technologies for their manufacture, delivery and installation, as well as for their repair and maintenance.

To solve the problem of repair, maintenance and installation of RPU antenna cloth with RPU loading with loads that do not critically affect the bearing capacity, strength and rigidity of the RPU, the author offers technical solutions and a device, the composition and principle of which are given in the description of the invention and in a brief description of the drawings.

The technical result of the proposed invention is to accomplish the task of creating a device for servicing RPUs of large inclined antenna canvases of stationary radar stations of the Missile Attack Warning System with the following capabilities:

- providing access to any section of the antenna sheet and fixing the cargo basket on this section;

- the withdrawal of the device from the front of the antenna sheet without dismantling it.

Brief Description of the Drawings:

The composition of the device, the relationship of the elements of the device and the principle of its operation are shown in FIG. 1 and 2, where:

1 - antenna body;

2 - antenna cloth with RPU.

The device according to the proposed invention consists of the following main elements:

3 - guide beams;

4 - cargo platform;

5 - cargo trapezoid;

6 - work basket;

7 - pile support of the work basket;

8 - drives change the departure of the cargo trapezoid;

9 - drive lifting-lowering the work basket;

10 - rope catchers;

11 - rope system.

The guide beams 3 are rigidly mounted on the roof of the structure to the elements of the supporting metal frame. The cargo platform 4 moves on wheels in the guide beams 3 along the facade of the structure. On the loading platform 4 there is a cargo trapezoid 5, drives for changing the departure of the cargo trapezoid 8, a drive for raising and lowering the work basket 9. The work basket 6 with pile support 7 is suspended from the cargo trapeze 5 using a rope system 11. The working basket 6 is equipped with rope catchers 10 s the purpose of eliminating spontaneous uncontrolled lowering of the work basket in the event of a voltage failure in the power supply network of the device. Storage work basket 6 between the periods of repair and maintenance of RPU is carried out on a cargo platform 4.

The device operates as follows.

Position "N" - inoperative.

The device is in the idle position "N". The device is located outside the front of the antenna sheet 2 in the storage area on the antenna body 1. The work basket 6 with pile support 7 is located on the cargo platform 4. The cargo trapezoid 5 is rotated to a position above the cargo platform 4. The cargo platform 4 is fixed in the guide beams 3.

To bring the device into working condition, the following operations are performed.

- The cargo platform 4 is released from fixing in the guide beams 3.

- The loading platform 4 moves in the guide beams 3 along the facade of the RPU to the area of the RPU section that needs to be repaired or maintained.

- The loading platform 4 is fixed in the guide beams 3.

- In the work basket 6 loaded operators service RPU.

- The necessary materials and tools are loaded into work basket 6.

- Using the drive raising and lowering the work basket 9, the work basket 6 is lifted with pile support 7 above the loading platform 4.

- Using the drives to change the departure of the cargo trapezoid 8, the cargo trapezoid 5 is rotated to a position above the RPU and the work basket 6 is hung above the RPU in the initial position “I”.

- Using the drive raising and lowering the work basket 9 and the rope system 11, the work basket 6 is lowered until the pile support 7 comes into contact with the surface of the RPU 2 in its upper part.

- Then, using the lifting-lowering drives of the working basket 9 and the rope system 11, the working basket 6 is moved in the working position “P” to a specific RPU place for repair or maintenance.

- Repair or maintenance of the RPU site is in progress.

- At the end of the repair or maintenance of the RPU section using the lifting-lowering mechanism of the working basket 9 and the rope system 11, the working basket 6 is moved to the upper part of the RPU.

- Using the drive raising and lowering the work basket 9 and the rope system 11, the work basket 6 is hung over the RPU in the initial position "And".

- Using drives changing the departure of the cargo trapezoid 8, the cargo trapezoid 5 is rotated to a position above the cargo platform 4.

- Using the drive raising and lowering the work basket 9, the work basket 6 is lowered onto the loading platform 4 to the inoperative position "N".

- Materials and tools are unloaded from work basket 6.

- RPU service operators are unloaded from work basket 6.

- The cargo platform 4 is released from fixing in the guide beams 3.

- The cargo platform 4 moves in the guide beams 3 along the facade of the RPU in the storage area of the device.

- The loading platform 4 is fixed in the guide beams 3 for storage until the next period of maintenance and repair of RPU.

In FIG. 1 shows the contours of a stationary antenna with an inclined antenna sheet and a device located on the RPU in the operating position "P".

In FIG. 2 shows a cross-sectional view of an antenna with a device in operating “P”, initial “I”, and inoperative “N” positions.

The implementation of the invention:

The invention will be used at the facilities of the Missile Attack Warning System of the Ministry of Defense of the Russian Federation.

The device proposed by the present invention can be manufactured in enterprises specializing in the manufacture of hoisting-and-transport machines and mechanisms.

Technical solutions contained in the invention can be used to create devices designed for maintenance, diagnostics, restoration and repair of large inclined surfaces of buildings, structures, antenna canvases, etc.

Claims (1)

A device for repairing and servicing large inclined surfaces of buildings and structures, containing guide beams located on the roof, a cargo platform moving along these guide beams, on which a cargo trapezoid, which functions as an arrow of a load-lifting mechanism, is mounted, drives for changing the departure of the cargo trapezoid, and drives for lifting and lowering work basket, work basket, cable system for hanging the work basket, characterized in that the wall of the work basket facing the inclined overhnosti structures, acts as a pile support and the basket is formed as a brush surface with tightly packed bristle carrier, calculated on the perception of the load from the loaded basket, the transfer and uniform distribution of the load on the inclined surface structures serviced within the entire area of the pile support.

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