SU1434018A2 - Road roller - Google Patents

Abstract

The invention relates to vibratory machines for soil compaction and will allow to intensify the compaction process. Road roller contains a cylindrical roller 1, the housing, the frame 5, the shell. The shell is formed by upper and lower semi-cylinders. Semi-cylinders are mated in a horizontal plane. The center of curvature of the lower half cylinder is offset relative to the axis of the drum 1 to the upper half cylinder. 3 il.

Description

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The invention relates to the construction, in particular to vibratory machines, can be used to compact or destroy various environments of soils, super-concrete concrete mixtures and is an improvement of the roller on the main ed. St. No. 874836.

The purpose of the invention is to intensify the compaction process.

FIG. 1 shows a road roller overall view; in fig. 2 shows section A-A in FIG. 1j in FIG. 3 shows a section BB in FIG. 2

The floor of the shell 6 is made in the form of two semi-cylinders — the top 21 and the bottom 22, mated in a horizontal plane.

Road roller works as follows.

Driven in opposite directions, the sleeves 17 and 18 through the levers - drove 13 and 14 cause the runners 11 and 12 to roll in opposite directions along the inner surfaces of the adjacent semi-cylinders 21 and 22 of the shell 6 s.

Road roller contains 15 cylindrical radii R whose centers are shifted

Cage drum 1. The drum 1 is provided with elastic shock absorbers 2 and under the studs 3 mounted in the housing 4. The housing 4 is fixed to the frame 5.

by value. With converging and dissolving movements of the sliders 11 and 12 in the upper semi-cylinder 21, the shell 6 with the load 19 is in the initial 20 (raised) position, with convergent movement of the benunks 11 and 12 in the lower semi-cylinder 22, receiving an accelerated downward movement , since the radii R of the adjoining sliders 11 and 12 are larger than the distances between the axis of the sliders 11 and 12 and any point of curvature of the lower half-cylinder 22. As a result, an additional dynamic impact is created on the roller 1. The impact value depends on the & , the rotational speeds of the sliders 11 and 12, and the weight of the shell 6 with the load 19. The higher the rotational speed of the sliders 11 and 12 corresponds to the greater magnitude of the impact. The speed of rotation of the sliders 11 and 12 for a quarter turn should be greater than the velocity of free fall of the shell 6 with a load of 19 by the value of L,

The shell 6 by means of hollow trunnions 7 and the sliders 8 fixed on them, which enter guide 9, is fixed on frame 5. The sliders in guide 9 are fixed by rods 10. Inside the hollow shell 6 are installed and are adjacent to its internal top and top runners 11 and 12 associated with the drovers 13 and 14, the hubs 15 and 16 of which are fixed on the shafts — central 17 and ambient 18. For synchronous rotation of the shafts 17 and 18 in opposite directions, parts of the corresponding actuator of the known drive are mounted in opposite directions to their outside. species for example wow (item not specified). At the same time, there is a gap between the inner surface of the hollow axles 7 and the outer surface of the enclosing shafts 18, as well as between the inner surface of the drum 1 and the outer surface of the projecting impact part of the shell 6, which does not exceed the range of its oscillations.

Dp of concentrated application of pulses to the body of the drum 1, the shock part of the shell 6 can be made in the form of a bar 19. From the ends, the drum is limited to disks 20.

F o rm y

by value. With convergent and divergent movements of the sliders 11 and 12 in the upper semi-cylinder 21, the shell 6 with the load 19 is in the initial (raised) position, with convergent movement of the benunks 11 and 12 in the lower semi-cylinder 22, getting accelerated downward movement, so as the radii R of the adjoining sliders 11 and 12 are larger than the distances between the axis of the sliders 11 and 12 and any point of curvature of the lower half-cylinder 22. As a result, an additional dynamic impact is created on the roller 1. The impact value depends on the & , the rotational speeds of the sliders 11 and 12, and the weight of the shell 6 with a load of 19. The higher the rotational speed of the sliders 11 and 12 is the greater impact value. The speed of rotation of the sliders 11 and 12 for a quarter turn should be greater than the speed of the free fall of the shell 6 with a load of 19 by the amount L,

the invention

F o rm y

Road roller on autor.St. 874836, characterized in that, in order to intensify the compacting process

The bottom shell is formed by upper and lower semi-cylinders adjoining in the horizontal plane, with the center of curvature of the latter displaced relative to the axis of the drum to the upper semi-cylinder.

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Claims (1)

Claim A road roller according to Autoswitch No. 874836, characterized in that, in order to intensify the compaction process, the hollow shell is formed by upper and lower half-cylinders conjugated in the horizontal plane, and the center of curvature of the latter is shifted relative to the roll axis to the upper half-cylinder. Figure 1 Fig.Z