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Boring system

A channel and raceway technology, applied in the field of expanding head and pulling head system, which can solve the problems of difficult conveying, lack of resistance, and high cost

Inactive Publication Date: 2010-03-24
TRACTO TECHN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But such a chain is expensive, weak and difficult to convey

Method used

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Embodiment Construction

[0024] The system according to the invention comprises a drive 1 and a link 2 comprising articulated link sections 4 which move a tool 6 in a channel axis 8 . Tool 6 is a rupture head which displaces an old pipe 7 laterally in the ground. The drive 1 transmits thrust and pull forces into the channel axis 8 via a channel 10 .

[0025] A guide rail 11 with inner rollers 14 and outer rollers 16 is arranged in the groove 10 . Due to their articulated connection and due to their shaping, the guide rods 2 bear against the outer rollers 16 when thrust is applied, and they ensure that the thrust is deflected to the channel axis 8 . When a tensile force is applied, the guide rod 2 bears against the inner roller 14 of the guide rail 11 and in turn allows the transmission of the tensile force to the channel axis 8 and thus to the tool 6 .

[0026] figure 2 The use of a push / pull above the shaft according to the invention is shown. The guide rod is turned by 90° in the shaft and inse...

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Abstract

The invention relates to a system for the overground operation of underground sewer tools, especially of expander and pulling heads comprising a rod assembly that is rigid when pushed and a supportingdevice absorbing shear or tractive forces.

Description

technical field [0001] The invention relates to a system for operating channel tools, in particular enlarging and pulling heads, comprising a thrust-stiff guide rod, such as are known for finishing channels, for replacing pipes, but also for building new channels. Background technique [0002] When replacing tunnel pipes horizontally, a tunnel tool such as an enlarging head or a pulling head is moved through the tunnel and in this case ruptures and displaces the old pipe laterally or pulls it out of the tunnel. At the same time new pipes can be pulled into the channel. In order to be able to move the tool with the force required for this, various systems are known. In this way, for example, the tool is pulled through the channel by means of a winch on a pulling cable. In order to avoid the installation of such a winch in the channel axis, it is nevertheless possible to run the winch on the ground, ie to deflect the pulling rope from the channel axis via the rollers. But w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/04E21B7/30F16L55/165
CPCF16L55/1658E21B17/046E21B7/046E21B7/30
Inventor F-J·皮特曼
Owner TRACTO TECHN