SU861498A1 - Device for profiling soil bed under pipeline - Google Patents

Description

I

The invention relates to mechanical engineering, and more specifically to building machines for soil profiling during the laying of pipelines.

A device for profiling a soil base under the pipelines is known, comprising a two-tail plow connected to the tractor by means of a parallelogram suspension 1.

The disadvantage of this device is that when using it, it is possible to profile only the linear part of the base (pipeline bed) without fragments for joints.

The closest to the invention according to the technical essence and the achieved result is a device for profiling the base for pipelines, consisting of a double-sided plow mounted on the support wheel of a rotary excavator, and a cam copying device, which cuts the linear part of the soil base (under the pipe barrel) and under the butt joint 2.

The disadvantage of this device is that in order to be able to

profiling the base under the pipelines, additional preliminary planning of the route is necessary to move the base mashina. In addition, the use of this device is limited due to the impossibility of using it in cramped conditions.

The aim of the invention is to improve the quality of the profiling of the soil base under the pipelines and the expansion of the field of application of the device.

The goal is achieved by the fact that the copier is made in the form of a longitudinal guide, on which a cutting unit with a drive is mounted with the possibility of longitudinal movement.

FIG. 1 shows the proposed roystvo, side view; in fig. 2 - the same plan view; in fig. 3 shows section A-A in FIG. 2

The profiling device comprises a copier made in the form of one or 20 several longitudinal guides 1, on which a cutting tool 3, made, for example, in the form of a plow, is mounted by means of the carriage 2.

At the same time, the head part of the guides is equipped with a gripping unit 4, including a large bracket 5, a small bracket b and supporting rollers 7. The gripping unit is designed to rest on the socket of the previously laid pipe 8, and the head part is equipped with outriggers 9, providing through level 10 the required longitudinal slope guides. The longitudinal movement of the plow is carried out using a cable block system consisting of a winch 11 mounted on the head of a rigid frame and a cable 12 connecting the plow to the winch.

The device works as follows.

At the project mark of the bottom of the trench, with the help of a crane, the first pipe 8 is lowered with a socket in the direction of the route. The device in the trench is lowered by the described device and the gripping unit 4 is mounted on the bell of the pipe 8, and the head part is installed on the outriggers 9, the device is adjusted to the level of 10 in accordance with the slope required. The carriage 2 with the plow 3 is moved to its original position at the head of the guides 1 in front of the bell of the pipe 8.

Moving the plow 3 along the guide I in order to cut the profile is carried out with the help of a winch 11 and a cable 12. The path of movement of the plow 3 along the guides at one time corresponds to the length of the pipe.

After cutting the profile in the formed bed, the next pipe 13 is lowered and joined with the previously laid pipe 8. Then the carriage 2 is disconnected from the plow 3, which remains in place, take out the small bracket 6 from the gripping unit 4, the head part of the rails rises and moves for pipe length. In this case, the tail part of the guides, resting on rollers 7, rolls along the newly mounted

The pipe 13 to its socket, and the gripping unit 4 is fixed on the latter. The guides are then turned on level 10, the carriage 2 is rolled into the plow 3 and connected to them. At this point, the technological cycle for cutting the profiled base under the pipe is completed.

The application of the invention enhances the quality of the profiled base and reduces the amount of manual earthworks.

Claims (2)

Invention Formula A device for profiling a soil base under a pipeline, including a cutting tool, kinematically associated with a cam, and its drive, characterized in that, in order to improve the quality of bed profiling under the pipes and expand the field of application of the device, the copier is designed as a longitudinal guide, On which a cutting body with a drive is mounted with the possibility of longitudinal movement. Sources of information taken into account during the examination 1. Swordsmen C; A. Saibel E. Ya. Determination of the main design parameters of the plow hinged system on a tractor, 2-3 tons, used when constructing the soil fillet for underground pipelines. Institute Proceedings VODGEO issue number 45. M., 1974, p. 186. 2. Mechanism for preparing the base of the trenches for pipelines on socket and socket joints. VNIIVODGEO report on the topic “Development and justification of a rational technology for the construction of pipelines of cast-iron pressure pipes under a rubber cuff, based on the integrated mechanization of work, M., 1977, p. 52-53 Fig. 26 (prototype). f1 / gd