A device for the trenchless laying of polyethylene pipelines

 

The invention relates to earthworks and can be used for trenchless laying of polyethylene pipelines small diameter, plastic drainage, cable, and other long items. A device for the trenchless laying of pipelines includes base machine, Ripper with support rollers and the guide duct positioned behind the Ripper. It contains a pressure roller that is installed with the possibility of interaction with the pipe during the laying of the pipeline. The diameter of the pressure roller corresponds to the diameter of the road wheels are located on the same shaft with the pressure roller. Improving the quality of pipeline laying and reduced the energy intensity of the workflow. 4 Il.

The invention relates to earthworks and can be used for trenchless laying of polyethylene pipelines small diameter, plastic drainage, cable, and other long items.

Known granolithic containing the basic machine and the box set for Ripper /A. with. 973734 THE USSR, MKI 3 E 02 F 5/10, 1982/.

The closest analogue on essential features of the claimed device is a cable-handling vessel, containing basic mastrovin cutting knife /A. with. 1507923 the USSR, MKI 4, E 02 F 5/10, publ. 1989/.

The obstacles to achieve the desired technical result is significant logistical costs in the production work, as well as the low quality of the pipeline laying.

The objective of the invention is the reduction of tension and surface damage in polyethylene pipe during laying, caused by the friction of the pipe on the back wall of the box.

The technical result consists in increasing the quality of the packing due to force-feed pipe by removing damaging it and reducing the energy intensity of the workflow.

This technical result is achieved in that the device for the trenchless laying of pipelines containing basic machine, Ripper with support rollers and the guide duct positioned behind the Ripper, the feature is that it contains a pressure roller that is installed with the possibility of interaction with the pipe during the laying of the pipeline, the diameter of the pressure roller corresponds to the diameter of the road wheels are located on the same shaft with the pressure roller.

A device for the trenchless laying of pipelines is illustrated by drawings, where Fig.1 and the position; in Fig.4 - section (Fig.2 section a-a) at the place of installation of the track roller and the pressure roller.

A device for the trenchless laying of pipelines contains the base machine 1 (e.g., tractor), Ripper 2, the guide frame 3 positioned behind the Ripper 2. According to the guiding frame 3 moves polyethylene pipe 4, coiled with Bay 5 hung on the front of the machine base 1. The Ripper 2 attached rollers 6, which are rigidly (for example, by means of keys) is installed on the shaft 7, as well as the pressure roller 8, by means of rods 9. Due to the spring 10 is provided by the contact force of the track roller 6 to the ground and the pressure roller 8 to the pipe 4 in the working position and the contact force of pressure roller 8 to the Ripper 2 in the transport position. Rear Ripper 2 mounted support rollers 11, which is served by the pipe 4. The translation device relative to the base machine 1 from transport to working position and back is carried out by means of the hydraulic cylinder 12 and the beams 13. Track rollers 6 provided with a lug 14. The force of the compression spring 10 is adjustable tensioning device 15. Mounting springs 10 to the shaft through bearings 16.

At the beginning of the constructed pipeline, nasrabad craplets the free end of the pipe 4 for the initial fixing the position of the pipeline. Then the tractor 1 moves along the axis of the track laying of the pipeline. Simultaneously begins the excavation and laying of the pipeline. The soil is developed Ripper 2 and the tube 4 is forcibly fed into the guide duct 3 and is placed in the soil due to the pressure roller 8, through which the shaft 7 rotates together with the supporting rollers 6. Destroyed the soil is partially diverted to the sides from the axis of penetration and the resulting ground level H1for guiding duct 3 is somewhat lower relative to the level H of penetration of the Ripper 2 due to the forces of internal friction, i.e., the absence of complete backfill of the developed layer. This circumstance allows the presser roller 8 with a diameter equal to the diameter of the supporting rollers 6. Track rollers 6 are pressed against the ground by springs 10 and traction as a result of interaction with the soil get forced rotation is transmitted through the shaft 7 on the pressure roller 8, which is in contact with the ground is not. Modules velocities on the rim of the track roller 6 and the rim of the clamping roller 8 are equal, because equal to their diameters and correspond to the speed of the Prime mover 1. To avoid slipping when rolling on the ground rollers 6 provided Grun is the main rollers 11. The force of the compression spring 10 is adjustable tensioning device 15. Mounting springs 10 shaft through bearing 16, is made to reduce friction in the bearings.

When the finished device is transferred to the transport position by a hydraulic cylinder 12 through the beams 13. If necessary bypassed the rest of the pipe 4 may be fixed relative to the Ripper 2 pressure roller 8 due to the lifting shaft 7. This spring 10 is first stretched, and then, passing through the hinge 17 of the mounting rods 9 to the Ripper 2, shrinks again, locking the free end of the pipe 4.

Thus, the speed of the feed pipe is provided equal to the speed of the machine base due to the pressure roller having the same diameter with the rotating support rollers, which, in turn, rotate from traction as a result of contact with the ground.

Claims

A device for the trenchless laying of pipelines containing basic machine, Ripper with support rollers and the guide duct positioned behind the Ripper, characterized in that it comprises a pressure roller that is installed with the possibility of interaction with the pipe when the use is as the same shaft with the pressure roller.

 

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