RU2270754C2 - Disk-type working tool of the smoothing machine with vertical vibrations - Google Patents

Abstract

FIELD: construction industry; construction equipment.

SUBSTANCE: the invention is pertaining to the field of construction industry, in particular, to construction equipment and may be used for superfine working of the non-solidified concrete surfaces of the concrete products molded out of the hard concrete mixtures with production of the required class roughness on the face surface. The technical result of the invention is reached due to the fact, that the disk-type working tool is supplied with the disk with the undulation surface, which with the help of the planetary drive is connected to the drive unit, and the body, which is capable to rotate, is connected to the drive unit and with the main part of the disk, the effective area of which consists of the main part and two movable in the vertical direction batches of the sectors. At that the disk with the undulation surface interacts with the sectors and has a possibility of rotation and transfer through the pushers of the vertical vibrations in opposite directions to the first and the second batches of the sectors.

EFFECT: the invention ensures the superfine working of the non-solidified concrete surfaces of the concrete products molded out of the hard concrete mixtures, production of the required class roughness on the face surface.

1 cl, 2 dwg

Description

The invention relates to the field of construction industry and can be used for high-quality processing of non-hardened surfaces of reinforced concrete products molded from hard concrete mixes for civil and industrial construction.

There are various smoothing machines [1] for the treatment of uncured concrete surfaces of precast concrete products. Processing known smoothing machines is carried out by the interaction of the working body with the uncured hard concrete surface of the product.

Closest to the proposed is the working body of the smoothing machine [2], containing a housing, a smoothing disc, a drive shaft, at the end of which a mechanism is fixed. The mechanism contains a driven link of the rotational motion drive with an elastic element - a spring rigidly fastened to the driven link, transmitting rotation to the driven spline shaft, at the end of which there is a smoothing disk that performs frictional self-oscillations in the vertical plane in the spline bushings by twisting, stretching, compressing the spring.

A disadvantage of the known devices is the inability to provide high quality processing of hard concrete surfaces, high metal consumption, energy consumption, vibration transfer to the machine portal.

The technical problem solved by the invention is to obtain high quality processing of hard concrete surfaces and reduce energy consumption, increase durability.

The technical result is achieved by the fact that the disk working body is provided with a disk with a wave-like surface, which is connected to the drive by means of a planetary gear, and the housing is rotatably connected to the drive and to the main part of the disk, the working surface of which consists of the main part and two movable in the vertical direction groups of sectors, and a disk with a wavy surface interacts with sectors and has the ability to rotate and transmit vertical vibrations through pushers in opposite directions a systematic way the first and second group of sectors.

The invention is illustrated by the drawing, which shows the disk working body of a smoothing machine with vertical vibrations, consisting of a pulley 1, angular contact bearings 2, portal 3, a disk with a wavy surface 4, smoothing disk 5, sectors 6, housing 7, pushers 8 and 9, planetary gear 10.

The disk working body of a smoothing-out machine with vertical vibrations works as follows: through the driven pulley 1, rotational motion is transmitted to the housing 7 on which the smoothing disc 5 is mounted. Through planetary gear 10, rotational motion is transmitted to the disk with a wave-like surface, which transmits vertically directed through the pushers 8 and 9 fluctuations of the first and second groups of sectors.

Thus, in the process of finishing the surface of the product, the smoothing disc rotates, and the sectors oscillate in the vertical direction. Moreover, while the first group of sectors moves down, the second moves up, thereby compensating for the vibrational impact on the portal. With this action of the working body on the surface to be processed, the energy of vibrations is transferred below the underlying concrete mixture layers, while the bonds between the particles are broken, and their shear resistance is reduced. A rigid smoothed surface acquires mobility, and aggregate and cement grains get the opportunity to occupy a more stable spatial position, thereby achieving a dense packing of aggregate grains in the gradient layer. When the working body does not tear off the edge of the working surface of the disk from the work surface, which improves the quality of processing of concrete surfaces.

The advantage of this design is the high quality of processing of hard concrete mixtures, uniform wear and an increase in the service life of the smoothing organ and the machine as a whole, low energy consumption.

Information sources

1. Bolotny A.V. Smoothing concrete surfaces. - L .: Stroyizdat, 1979.

2. Patent RU 2182536 C2, 05.20.2002, B 28 B 11/08.

Claims (1)

Disk working body of a smoothing machine with vertical vibrations, comprising a housing, a smoothing disk, characterized in that it is provided with a disk with a wave-like surface, which is connected to the drive by means of a planetary gear, and the housing is rotatably connected to the drive and to the main part of the disk, the working surface which consists of the main part and two vertically moving groups of sectors, the disk with a wavy surface interacting with the sectors and has the ability to rotate and transmission through pushers of vertical vibrations in opposite directions to the first and second groups of sectors.