RU173101U1 - TURNING VEHICLE-STACKER PLATFORM OF TEMPORARY COVERAGE CANVAS - Google Patents

Abstract

The utility model relates to the field of road construction, namely, to turntables mounted on car-stackers for temporary pavement canvases, and can be used to lay a flexible canvas and quickly form a solid type carriageway on complex soils. The pivoting platform of the temporary pavement web-laying vehicle comprises a rectangular base and a drum for winding the web with two cantilever shafts. Each half shaft is equipped with a bearing assembly located on a support fixed by means of two inclined racks on the base. Each bearing assembly is formed by a support cylinder with an end cap, inside of which a self-aligning spherical plain bearing and a sleeve fixing it are fixed. The utility model improves the reliability of the device. 1 zp f-ly, 4 ill.

Description

The utility model relates to the field of road construction, namely, to turntables mounted on car-stackers for temporary pavement canvases, and can be used to lay a flexible canvas and quickly form a solid type carriageway on complex soils.

The prior art platform platform of a temporary pavement web-laying machine comprising a rectangular base and a drum for winding a web with two cantilevered semi-shafts, each of which is provided with a bearing assembly located on a support fixed by two inclined racks on the base (see publication WO 9909255 , CL E01C 19/52, publ. 02.25.1999). The disadvantages of the known platform are periodic jamming of the drum, jamming of the canvas and, as a result, the rapid wear of the latter.

The technical problem is the elimination of these shortcomings and the creation of a more effective alternative design of the turntable, eliminating the possibility of damage to the canvas of the temporary pavement. The technical result is to increase the reliability of the device. The problem posed is solved, and the technical result is achieved by the fact that in the rotary platform of the stacker car, the temporary road pavement has a rectangular base and a drum for winding the canvas with two cantilever shafts, each of which is equipped with a bearing assembly located on a support fixed by two inclined racks on the base, each bearing assembly is formed by a support cylinder with an end cap, inside which a self-aligning spherical plain bearing and fi sleeve bushing him. Preferably, opposite the central part of the drum, on one side of it, arcuate restrictive racks with rollers are fixedly fixed on the platform.

In FIG. 1 shows the body of a stacker in a transport position;

in FIG. 2 - its general view in working position;

in FIG. 3 is a general view of the proposed turntable;

in FIG. 4 is a longitudinal section of its bearing assembly.

The body part of the car-stacker of the temporary road surface is a chassis 1 with a supporting platform 2, on which a rectangular base 3 of the proposed rotary platform is mounted on the rotary mechanism. On both sides of the base 3 by means of two inclined racks 4, supports 5 are fixed on which the sealed bearing assemblies 6 are located. In the assemblies 6, cantilever half shafts 7 of the drum 8 are installed for winding the flexible web 9 of the temporary road surface. The rear of the carrier platform 2 is provided with hinged brackets 10 with three or more rollers to support the web 9 during reeling / winding.

Each bearing assembly 6 is formed by a support cylinder 11, inside which a self-aligning spherical bearing 12 and its fixing sleeve 13 are fixed. In order to prevent dust and moisture from entering the cylinder 11, it is equipped with an end cover 14, which is fastened with screws 15 with spring washers. The half shaft 7 is fixed in the bearing 13 with a nut 16 with a washer and a spring washer. To replenish the oil level, a grease nipple 17 is provided in each bearing assembly 6.

In order to correctly wind up the web 9, as well as to prevent its arbitrary unwinding during operation, opposite the central part of the drum 8, on one side of it (in the working position from the cab side), arcuate restrictive posts 18 with rollers 19 on tops are fixedly fixed on the base 3. In addition, the base 3 is provided with guide rollers 20 and 21.

In the transport position, the turntable 3 is oriented parallel to the longitudinal axis of the stacker car, and in the working one it is perpendicular, while the rotation of the drum 8 is synchronized with the movement of the chassis 1. In normal operation, the base 3 is driven by a hydraulic motor 22, which gears with the crown 23 of the rotary mechanism, and in emergency - it moves manually. The canvas 9 is wound on a drum 8 and is wound therefrom using a hydraulic motor 24 with a brake, in emergency mode - manually using the node 25 manual rotation.

The proposed design of the turntable allows, within the permissible limits (determined by the location of the uprights 16), to compensate for the misalignment of the half-shafts 7, thereby eliminating jamming and damage to the blade 9 and increasing the reliability of the device throughout the entire service life.

Claims (2)

1. The rotary platform of the car-stacker of the temporary road surface, containing a rectangular base and a drum for winding the canvas with two cantilever shafts, each of which is equipped with a bearing assembly located on a support fixed by two inclined racks on the base, characterized in that each bearing the assembly is formed by a support cylinder with an end cap, inside of which a self-aligning spherical plain bearing and its fixing sleeve are fixed. 2. The platform according to claim 1, characterized in that opposite the central part of the drum on one side of it, arcuate restrictive racks with rollers are fixedly fixed on the platform.

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