RU2980U1 - LIFTING DEVICE - Google Patents

Abstract

A lifting device comprising a rack with a winch and a chain hoist located on the console of the rack, characterized in that it is equipped with an additional cantilever rack and a wheeled platform, both cantilever racks mounted on a wheeled platform, their consoles facing each other, and the tackle cantilever racks are paired between by means of a traverse.

Description

LOADING DEVICE.

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 proposed structural solution © tn & fit into the area

construction, in part, to load-lifting mechanisms, is used in the construction and operation of hydraulic structures, for example, dams.

Typically, the construction and operation of the dam associated with the use of expensive load-lifting BC devices of various designs.

So, for maneuvering the gates located in the construction openings of the upper - downstream dam, a load-lifting device in the form of a gantry crane GI can be used. However, such a load-lifting device has the ability to move only along i & one horizontal level. At the same time it is necessary to install hoisting devices at different horizontal levels, which means that it is necessary to operate the gantry crane at the top: the dam head is practically impossible.

The most acceptable for the stated purposes is a stationary rope hoisting device G 2 J, selected by the authors as a prototype of the inventive hoisting device. Such a device can move as the dam is erected from tier to tier by rearrangement by ordinary tower or cable construction cranes.

The prototype includes a cantilever rack with a winch and pulley, placed w, console racks.

Such a lifting device is not efficient enough and economical to operate.

, This is due to the fact that it can only be used when erecting a (yes longline, stepped) dam, in part, for maneuvering with shutters located in the upper pool.

For maneuvering the shutter, located in the downstream dam area, located on one horizontal level, this device is unsuitable for the impossibility of independent (without the help of construction cranes) moving it from one place of work to another.

In this regard, to control the gates in the downstream of the dam using a gantry crane, moving along horizontal paths.

The proposed constructive solution is aimed at solving the task of increasing the efficiency and economy of the operation of the lifting device by expanding its functional capabilities by using the shutters for maneuvering the shutters both in the upper and in the lower head of the dam.

The solution to this problem is achieved by the fact that the lifting device, including a cantilever rack with a winch and a chain hoist located on the rack console, is equipped with an additional cantilever rack and a wheeled platform; at the same time, both cantilever racks are mounted on a wheeled platform, their consoles are facing each other, and the tackles of both cantilever racks are connected to each other by means of a traverse.

The applicant does not know the constructive solutions that have the same set of essential features as the claimed one, which indicates the compliance of the claimed object with the novelty criterion.

Thanks to the implementation of the distinguishing features of the inventive conservative bastard, together with the features common with the prototype, the functionality of the lifting device is expanded - it can be used as in the upstream for step-by-step dam construction - then the cantilever racks are removed from the wheel platform and installed with a construction crane in an open place, g and in the downstream when working on horizontal keys, when cantilever racks are installed and fixed on the wheel plate in this way Orme.

The proposed technical wound is illustrated by drawings, in which Fig. 1 shows a lifting device in general form (cross section), in Fig. 2, it is also a lead on the side, Fig. 3 illustrates the operation of the proposed device with a tiered construction of a hydraulic structure in the upper pool, and FIG. 4 - operation of the device in the downstream.

The device contains cantilever racks I and 2, fixed with rigid braces 3 on the wheeled platform 4. The consoles of both racks are facing each other. Lugs I and 2 contain winches 5 and b, and tackles 7 and 8, respectively, paired with each other by means of a yoke 9

A wheeled platform is installed with the possibility of moving along the horizontal tracks of the south

&) the operating time in the downstream reach (Fig. 4) of the tackle dam 7,8 is coupled to the shutter 11 through the yoke 9, and when working in the upper reach (Fig. 3), the tackle is directly engaged with the shutter 12 of the upstream dam.

The device operates as follows.

- During the operation of the proposed lifting device in the bottom of the dam, where the valves are located at one horizontal level, it moves from one place of work to another, that is, from one valve to another, w horizontal tracks 10. Moreover, on a wheeled platform 4 fixed both cantilever Racks I and 2.

Shlispasta 7 and 8 are driven by the department of winches 5 and 6 and thanks to (with a pinch of traverse 9 with shutter II, the latter is maneuvered .-,

% and exh1uata1: p and the proposed load-lifting device in the upper downstream of the dam, in case of its tiered construction, only one (any) of the cantilever is used: w, for example, 2. It can be removed from the wheel platform and installed with the help of a construction tower or cable crane at the next level mark the concreting level of the dam and fixed on the concrete site. After that, the splint 8 of the cantilever rack 2 is connected to the shutter 12 and is driven by means of a winch 6. In this way, annealing of the shutter 12 of the upper pool of the dam is carried out.

Thus, the proposed device combines the functions of lifting devices used both in the upper and lower pools of the dam, which makes its operation efficient and economical, as it allows you to limit yourself to one lifting device in the process of construction and operation of the dam.

Sources of information:

I. Hydropower and auxiliary equipment of hydroelectric power plants, ed. Shchaveleva D.S. M., 1990, v. 2, pp. 20-21, Fig. 3-4.

Claims (1)

A lifting device comprising a rack with a winch and a chain hoist located on the console of the rack, characterized in that it is equipped with an additional cantilever rack and a wheeled platform, both cantilever racks mounted on a wheeled platform, their consoles facing each other, and the tackle cantilever racks are paired between by means of a traverse.