SU1747706A1 - Heading machine - Google Patents

Abstract

The invention relates to underground construction, in particular to the construction of the metro, and can be used for short workings. The goal is to expand the functionality due to the possibility of carrying out workings of variable cross section. The tunneling unit includes a spacer-step device consisting of front and rear spacer sections interconnected by displacement jacks, a rock-breaking body (ABM) and a mechanism for erecting a tubbing lining. The BMD consists of a beam 16 with cutting heads 17, 18 at the ends of the guides 19, a borehole 20 and hydraulic cylinders (HZ) 21 of the beam 16. The DRM drive is located on the movable table 6 and has a HZ 23 feed. The movable table 6 is mounted on the front spacer section by means of vertical posts and has locks 7 fixing its working position. The drive 22 rotates the guide of the borehole 19 with the beam 1C and the drill 20 and the cutting heads 17, 18, HZ 22 rods rotate. tue chickens While HZ 23 serves drive PRO to the depth of capture. 4 il. WITH

Description

The invention relates to underground construction, in particular to the mechanization of construction of metro 8, and can be used when conducting short workings — ventilation tunnels, underground explosives depots, etc. with team tubbing lining.

The purpose of the invention is to expand the functionality due to the possibility of carrying out workings of variable cross section.

FIG. 1 shows a driving unit when passing a short output of variable cross section; in fig. 2 - driving unit, longitudinal section; in fig. 3 - the same, eid in front; in fig. 4 — Tuning unit passing into a smaller diameter generation.

The tunneling unit includes a space-walking device consisting of front and rear spacer sections, a rock-developing body and a mechanism for erecting a tubbing trim.

The front raspsecha section of the spacer unit consists of a base 1 with n-rod joint 2, vertical pillars 3 with a fixed shelf 4 and spacer, hmrodromkrat 5, movable table b with locks 7 and hydraulic cylinders 8 lifting the lowering of the table 6 and cover 9 with longitudinal hinges 10.

The rear strut section of the spacer unit consists of a hinge

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base 11, racks 12c spacer hydraulic jacks 13 and hinged overlap 14.

The front and rear spacer sections are connected by displacement hydraulic jacks 15.

The breeding body consists of a beam 16 with cutting heads 17 and 18 at the ends, which guide the borehole 19, the borehole 20 and the hydraulic cylinders for moving the beam 21.

The actuator 22 rock body is located on the movable table 6 and has hydraulic cylinders 23 feed. In addition, on the overlap of the front spacer section there is a movement limiter of the beam 24, and on the beam there is a flag of the limiter 25.

A mechanism for erecting a tubular lining 26 is located at the end of the beam 16. The tunneling unit operates inside the assembled lining 27.

The unit works as follows.

The actuator 22 causes the rotary guides 19 with the beam 16 and the indent 20 to rotate. Together with the beam 16, the tool heads 17 and 18 rigidly attached to it also rotate. The rods of the hydraulic cylinders 22 are retracted. The hydraulic cylinders 23 drive the rock-developing body to a depth L of the flap of the valve and a notch occurs. Then the rods of the hydraulic cylinders 22 begin to extend, providing radial movement of the beam 16 with the cutting heads 17 and 18. At the same time, the cutting head 17, which rotates with the beam, develops the peripheral part of the bottom, and the head 19, which rotates with the beam; The beam movement continues until the whole face has been processed, while the pre-set flag 25 comes into contact with the limiter 24 and it gives a signal to stop the beam movement.

After the rock has been developed to a depth L of capture, the hydraulic cylinders 21 again feed the production unit to a depth L for a new notch. Then this cycle is repeated several times until the rock has been developed to a depth equal to the width of the tubing. Then, maneuvering in the longitudinal and radial directions by hydraulic cylinders 21 and 23, the Breeding Body, using the mechanism at the end of its beam, to build a tubing lining 26, assembles a new lining ring. After that, the Breeding Body is set to its original position. After this, the thrust in the jacks 5 and the front thrust is removed.

the section, repelling from the rear hydraulic jacks 15, is moved forward by the width of the mounted ring, after the spreading in the hydraulic jacks 5 is restored, and in the hydraulic jacks 13 it is removed, the rear

the spacer section is pulled toward the front hydraulic jacks 15 and the thrust in the hydraulic jacks 13 is restored. After that, the unit again GBT to the development of the breed.

If it is necessary to change the diameter of the created production, the locks open, the axis of the rock body is set to the required height using the hydraulic cylinders for moving the table 6, the locks are closed again, the hinged overlaps 9 and 12 are set by the hydraulic cylinders 5 and 13 to the position corresponding to the new diameter (see Fig. 4 ). When passing to the new diameter of the base and the overlapping of the spacer sections, they adapt to the changed curvature of the bearing surfaces due to the longitudinal hinges 2 and 10.

Claims (1)

Invention Formula The driving unit, including the spacer-step device in the form of front and rear spacer sections, interconnected by jacks movement, a breeding body with incisors, a mechanism for erecting a tubing lining, spacer hydraulic jacks, a table movable in a vertical plane, and a drive of a rock producing body, characterized in that, in order to expand the functional capabilities due to the possibility of developing workings of variable cross section, transverse guards fixed on it, in which a rock-developing body is movably mounted, made in the form of a beam with incisors at its free ends, having x same direction, wherein the drive body porodorazrabatyvayuschego located on a movable table which is mounted on the front section of the brace by means of vertical uprights and is provided with locks for fixing its operative position, wherein hydraulic jacks are mounted on a movable table, and a mechanism for erecting a tubing lining is mounted on the end of the beam of the rock-forming body. - h i, yy a. s -fs-ft f2 : y ////////// V // //} (// W /// S /// W ///;:: 3 22 1 in-27  ::, -: .-., FIG. at 4 /four g , /  0 & F $ F 2 & eZ 17 rig 4 6 23 3 to 23 1747706 // 10  J№ fO 4 j ... - -I, „I F., | . with.. 6,231Z7  23