RU2647538C1 - Vibrating self-propelled compaction roller for materials and soils - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to construction, namely to road rollers for soil compaction and materials during the construction of roads and aerodromes. Vibrating self-propelled roller for compacting materials and soils contains a front half-frame, a vibrovalets, a shaft, an eccentric mass, a hydraulic motor, rubber-metal shock absorbers, according to the invention, the additional frame is connected to the front half frame by means of rubber-metal shock absorbers, on the additional frame a vibro-exciter of lateral oscillations of the vibrovalets is installed, while the axis of rotation of the eccentric mass of lateral oscillations is perpendicular to the axis of rotation of the vibrovalets.

EFFECT: road roller is proposed for vibrational compaction of materials and soils.

1 cl, 2 dwg

Description

The invention relates to construction, namely to road rollers for vibration compaction of materials and soils.

Known self-propelled vibration roller (see, for example, the book: Construction vehicles: a reference book: 2 vol. T.1. Machines for the construction of industrial, civil structures and roads / A. V. Rannev, V. F. Korelin, A. V. Zhavoronkov et al .; Edited by E.N. Kuzin, Ed. - Moscow: Mashinostroenie, 1991. - P.165-167] [1], containing a biaxial tractor, a front half frame of the vibration roller, a rear motor half frame with an engine and the running mechanism.The half-frames are interconnected by means of a hinged joint; the vibrodrum contains a shaft with an unbalance fixed on it. Itel receives a rotation drive from the hydraulic motor, the vibrocrank is mounted on the front frame using rubber-metal shock absorbers.

A disadvantage of the known invention [1] is the low efficiency of the high-frequency impact of the vibrator on the material being compacted due to the fact that the simple-acting vibration exciter has two phases of action.

When the dynamic unbalance force acts down, a working action is performed and the soil is compacted, and when the excitation force acts up, an idle stroke is made. Therefore, in a conventional vibration exciter, only half of the total time is used to perform the useful work of compaction of materials and soils. In addition, modern vibratory rollers have a rather complicated structure.

Known vibration roller [see, for example, patent RU No. 2318948 C2, class. E01C 19/28, publ. 03/10/2008, Bull. No. 7] [2], in which the vibro-roll is made in the form of three sections, which roll over the sealing surface and make vertical vibrations. When the middle section of the vibratory roll moves up, the side sections move down, i.e. perform a stroke, make the compaction of the material. During one period of rotation of the vibratory roll sections, the direction of the vertical movement of the sections changes, the idle and operating modes change. The disadvantage of this device is the complex design of the three-section vibratory drum.

Closest to the proposed device is a device [patent RU No. 2405881, class. E01C 19/28, publ. 12/10/2010, Bull. No. 34] [3], in which the vibratory roll is made in the form of two sections with the possibility of rotation on the crankshaft, which makes it possible to make vertical movements in antiphase with each section of the vibratory roll. When one section moves downward, a working course of compaction of the material takes place; the second section idles upward. The disadvantage of the vibratory roll [3] is the complex design of the crankshaft for rotating sections of the vibratory roll.

The objective of the invention is to use two vibrations on the vibrator: longitudinal vertical vibration excited by the unbalance on the shaft of the vibratory roll and lateral vibration excited by the external unbalance mounted on the additional frame of the vibratory roll.

The technical result of the invention is to simplify the design of the vibratory roll and the use of complex effects on the material being compacted.

The object of the device is solved due to the fact that the vibrating self-propelled roller for compaction of materials and soils contains a front half frame, a shaft, an unbalance, a hydraulic motor, rubber-metal shock absorbers, according to the invention, an exciter of lateral vibrations of the vibratory roll is installed on an additional frame of the vibratory roll, while the axis of rotation of the unbalance of lateral vibrations is perpendicular axis of rotation of the vibratory roll.

The essence of the operation of the device vibratory self-propelled roller for compaction of materials and soils is illustrated by drawings: FIG. 1 and 2.

In FIG. 1 shows a general view of a self-propelled vibratory roller, in FIG. 2 is a sectional view of arrow A.

The invention of FIG. 1 and 2 contains: 1 - front half frame; 2 - rear frame with engine and running gear; 3 - vibrodrum; 4 - body exciter lateral vibration; 5 - a hydraulic motor drive lateral vibration unbalance; 6 - unbalance of lateral vibration; 7 - a vibratory roll shaft; 8 - unbalance of longitudinal vibration; 9 - a hydraulic motor drive the vibratory roll shaft; 10 - rubber-metal shock absorbers; 11 - additional vibratory roll frame; 12 - angular contact rolling bearing of an additional double-acting frame; 13 - roller bearings of the shaft.

Vibrating self-propelled roller for compaction of materials and soils works as follows.

With the forward movement of the vibratory roller along the sealing surface, the vibration exciter 8 on the vibratory roll shaft receives a drive from the hydraulic motor 9 and creates a longitudinal vertical vibration. At the same time, the vibration exciter 4, using the unbalance 6, which receives a rotation drive from the hydraulic motor 5, creates a transverse vibration of the vibratory roll. As a result of the simultaneous action of longitudinal and transverse vibrations, a complex stress-strain state arises in the material being compacted under the vibrating roll and intensive material compaction occurs.

The proposed design of a vibrating self-propelled roller improves the performance of the device.

Claims (1)

A vibrating self-propelled skating rink for compaction of materials and soils, containing a front half frame, a vibratory roll, a shaft, unbalances, a hydraulic motor, rubber shock absorbers, characterized in that the additional frame is connected to the front half frame through rubber metal shock absorbers, an exciter of lateral vibrations of the vibratory roll is mounted on the additional frame, while the axis rotation unbalance lateral vibrations perpendicular to the axis of rotation of the vibratory roll.

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