SU1694792A1 - Earth-cutting working member of trenchless drain layer - Google Patents

Abstract

The invention relates to earthmoving machinery and m. it is used mainly for laying closed material drainage, as well as for communication lines and other underground utilities. The goal is to simplify the design and reduce metal consumption. The digging tool (RO) of the trenchless draining machine includes a pipe-guiding path (TNT) and vertical and horizontal knives 3 and 2 fixed to it, which are coupled with the working surface of the guide element (NE) 4. The vertical knives 3 and TNT 1 are shifted in one direction relative to the longitudinal axis of the PO, TNT is shifted by an amount of bb / 2, and vertical knives 3 are shifted by B / 2. The working surface of each NE 4 corresponds to the dependence B - b hkp, where B is the width of the NE, m; b - width of TNT, m; h - offset knives vertically, m; kp - soil volume increase ratio (loosening) during development. During the forward movement of the RO, knives 2 and 3 cut the soil chips with thickness h and width B. The soil chips rises along the ne 4 and is directed to the through-holes, then the soil is laid on the drain pipe 5, which is fed to the bottom by TNT 1. 6 Il. (Ls

Description

FIG

The invention relates to earthmoving machinery and can be used primarily for laying closed material drainage, as well as communication lines and other underground utilities.

The purpose of the invention is to simplify the design and reduce the metal consumption.

Fig, 1 shows the working body, a general view; figure 2 is a view of And figure 1; on fig.Z - section aa in figure 1; figure 4 - section. B-B in fig.Z; FIG. 5 is a view B in FIG. one; Fig. 6 is a diagram of the formation movement in section A-A in Fig. 1.

The working body consists of several soil-cutting cutting bodies displaced horizontally and vertically, and a pipe-guide line 1. Each cutting body is equipped with horizontal 2 and vertical resolution 3 knives, passing into a lifting-conveying guide 4, which is made in the form of a curvilinear ruled surface . The cutting knives 3 and the pipe-guiding path 1 are arranged along the width of the guides 4 on one side from the side in the extreme position. The ruled curved surfaces 4 are designed so that the soil chips are raised to a height slightly larger than the stacked tube 5, and rotated at an angle nil in the vertical frontal plane with respect to the direction of movement of the tool. The pipe path of the first tract 1 and the knives 2 are made and installed so that they form for the soil through holes b between the pipe guide path 1 and the open wall of a slit of width B - b h Rp and length

i h I

sin a fo (b-b)

: V. When

h

this window area is 6

equal or more area

dm of the cross section of the soil shavings removed by the step PGR of B h kp, where b is the width of the pipe path, mm; B — width of guide elements, mm; kp is the coefficient of increase in soil volume during development; h is the displacement of soil-cutting cutting bodies relative to each other vertically, mm (chip thickness); a- angle of the pipe path, degrees |

Development of soil working body

occurs as follows.

When the working body moves progressively in the direction shown in Figure 1 by the arrow, knives 2 and 3 of each cutting body cut out soil chips with thickness h and width B. Later, when the soil moves along ruled curvilinear surfaces 4, the soil chips rise to the required height,

rotates in the vertical frontal plane and guided to the pass-through windows b (Fig. 6). After the ground has disappeared from the guides 4, it is laid in layers on the drainage tube 5, which is fed to the bottom

slots along the pipe 1

Claims (1)

The invention of the earth-digging workpiece of a trenchless plowing machine, including an inclined pipe-guiding path and attached to it with a horizontal and vertical displacement of the soil-developing agency, each of which is made of vertical and horizontal knives, coupled with a curvilinear working surface of the guide element, characterized in that, in order to simplify the design and reduce the metal consumption, the pipe guide path and the vertical knives are shifted in one direction relative to the longitudinal axis of the working body, and the pipe guide path is shifted by the amount (B - b) / 2, and the vertical knives - by the value B / 2, while the working surface of each guide element corresponds to the dependence B – b hkp, where B is the width of the guide elements, m; b — width of the pipe path, m; h - displacement of soil-cutting cutting organs vertically, m; kp - soil volume increase (loosening) coefficient during development. x  vV four sj with four “H. IN five B id FIG. five