RU168244U1 - Lightweight crane - Google Patents

Abstract

The technical solution relates to the field of construction and can be used mainly for the erection of walls made of stone and other small blocks. The lightweight crane includes a base, a fixed column on it, a horizontal cantilever boom with a hoist in the form of a winch at one end of the boom, with a grip on the opposite side, wherein the column is made telescopic and equipped with a spring clip, the column is equipped with retractable stops at the ends, and in the upper part it is equipped with rolling bearings, between which la with a rack with privodom.Takoe solution allows to expand the technological capabilities for the production of stone works on the walls of the device and small masonry blocks, significantly expanded scope of work, and it is possible to increase the lifting characteristics.

Description

The technical solution relates to the field of construction and can be used mainly for the construction of walls made of stone and other small blocks.

Known equipment for the mechanization of masonry from blocks, consisting of a base, a fixed column on it, a horizontal jib boom, a friction gripper and a friction gripper lifting mechanism that is mounted on the boom end link (UA patent for utility model No. 91468, IPC B25J 11 / 00, published on July 10, 2014). Since the equipment does not have a counterweight, the column has a fixed height and is not fixed when turning, the reliability of the system is not sufficient to ensure the required safety of stone work.

As a prototype, a crane was selected, which consists of a base, a fixed column on it, a horizontal two-arm console-swinging boom with a lifting mechanism in the form of a winch on the first link and a gripper on the second, the column being made telescopic and equipped with a spring clip (patent Russia for utility model No. 153871, IPC B25J 18/04, B66C 23/06, published on 08/10/2015). The disadvantage of this device is the limitation of its use by limiting service areas from one parking lot with a relatively limited reach and, therefore, requires a large number of movements along the front of the work.

The objective of the utility model is to improve the equipment, with the achievement of a technical result - the expansion of the technological capabilities of masonry walls from blocks by improving the design of the crane by introducing new features.

The problem is solved in that the lightweight crane, including the base, a fixed column on it, a horizontal cantilever boom with a hoist in the form of a winch at one end of the boom, with a gripper on the opposite, with the column made telescopic and equipped with a spring clip, the column is equipped retractable stops at the ends, and in the upper part is equipped with rolling bearings, between which a boom with a gear rack with a drive is mounted.

This solution allows you to expand the technological capabilities for the production of stone work on the installation of walls made of wall stones and small blocks, as the front of work is significantly expanded and it becomes possible to increase the lifting capacity.

The essential features of the device that appears and which coincide with the features of the prototype are:

- consists of a base, a fixed column on it, a horizontal cantilever-rotary boom;

- the lifting mechanism is made in the form of a winch at one end of the boom and a grip on the opposite;

- equipped with a spring clip;

- the column is made telescopic.

Distinctive features of the prototype essential features are:

- the column in the upper part is equipped with rolling bearings, and the boom is mounted between these supports for horizontal movement along them.

- the telescopic column is equipped with retractable stops at the ends, allowing you to fix on the horizontal structure of the building or structure.

The technical solution allows to achieve the goal: expanding the technological capabilities of the construction of wall stones and other small blocks by increasing the working area of the crane without moving it, namely: the boom has its own service area (sector around securing the boom to the column), fixed by the position of the column at using the clamp, and the rolling bearings allow you to expand the minimum and maximum radius of the crane service sector, and the stops increase the load capacity. Thus, in the aggregate of distinctive features, a technical result is achieved: a substantial increase in the front of work and an increase in load-lifting characteristics, which expands the technological capabilities of a lightweight crane.

The essence of the utility model is illustrated in the drawing, where:

In FIG. 1 - shows a General view of the crane-manipulator in axonometric projection.

The lightweight crane contains: a base (1) to which a fixed column (2) is welded with a spring clip (3) and retractable stops (4, 5) with a lever (6) to which the rolling bearings (7) are rigidly attached, between which is located cantilever-swinging boom (8), on which a winch (9) is fixed on one side, and a grip (10) on the other. A gear rack (11) with a drive (12) is fixed in the central part of the boom (8).

Work using a lightweight crane is as follows. The base (1) is brought into working position, the required height is set on the column (2), and the position of the cantilever-swinging boom (8) is fixed with a spring clip (3). Provided that there is a structure above the crane that can be fixed, the worker puts forward the stops (4, 5) using the lever (6). The load is held by the gripper (10) and lifted by means of a winch (9) to the required height. When the load reaches the installation site vertically, the winch (9) is turned off and horizontal movement of the cantilever-swinging boom (8) is carried out along the rolling bearings (7) due to the gear rack (11) with the drive (12). Holding the block from possible rotation with his hands, the worker turns on the winch (9) for slow lowering and fixes the block in the right place. Then disconnects it from the grip (8). Several subsequent blocks are laid without additional movement, moving the boom (8) along the rolling bearings (7).

The technical solution provides the expansion of technological capabilities for the erection of a stone structure from wall stones and other small blocks, by increasing the working area of the crane without moving it.

Claims (1)

A lightweight crane including a base, a fixed column on it, a horizontal cantilever boom with a hoist in the form of a winch at one end of the boom, with a grip on the opposite side, the column being telescopic and equipped with a spring clip, characterized in that the column is equipped with retractable stops at the ends, and in the upper part is equipped with rolling bearings, between which an arrow with a gear rack with a drive is mounted.

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