RU2344295C1 - Equipment for boring tunnel of alternate diameter - Google Patents

Abstract

FIELD: mining.

SUBSTANCE: invention refers to mining, particularly to machines for mine heading and can be implemented at metropolitan tunnel engineering. The suggested equipment includes a rock destructing body with bore bits equipped with cutting tools, the said body assembled so as to turn on a cross bar of a support case with spacing hydro-cylinders, the equipment also includes an indexer of longitudinal travel and a manipulator with a grip for assembling liner plates. Bore bits are made with autonomous rotation drives and are installed in the rock destructing body so as to travel radially, while spacing hydro-cylinders are arranged in pairs in vertical planes on both sides of the support case. The spacing hydro-cylinders and the indexer are located in a supported part of the tunnel and they rest on the inside surface of liner plates, while the manipulator is installed directly on the working body.

EFFECT: ability to bore tunnel of an alternate diameter and to expand already bored tunnel with the same complex of equipment; also increased safety of equipment maintenance.

3 cl, 2 dwg

Description

The invention relates to equipment used in conducting subway tunnels, and can be used (together with a loading machine) to drive a tunnel with a diameter that changes during the tunneling and expand an already conducted tunnel, for example, to create a camera to accommodate the warm-up of subway cars (cameras congresses).

The equipment used to drive underground tunnels is widely known.

However, as a rule, this equipment is either intended for tunneling of a constant diameter (tunneling shield complexes), or it is a set of equipment as part of a tunneling machine, special mounter and other equipment suitable for tunneling, but not for expanding the tunnel that has already been completed (see “The latest Japanese technique of paneling tunneling.” Samoilov VP, Malitsky BC, published by LLC TA Engineering, M., 2004, 232 pp.).

The aim of the invention is to provide with the same set of equipment the possibility of a tunnel of variable diameter and expansion of the already passed tunnel, as well as the safety of replacing cutting tools on crowns, which should be done in the fixed part of the tunnel.

Equipment of the same purpose, similar to the proposed applicant, is unknown.

The proposed equipment includes: a rock cutting body with crowns equipped with cutting tools, mounted to rotate in the transverse beam of the support body, equipped with spacer hydraulic cylinders, a stepping mechanism for longitudinal movement and a manipulator with a grip for installing tubing lining.

Crowns are made with autonomous rotation drives, installed in a rock cutting body with the possibility of radial movement, expansion cylinders are arranged in pairs in vertical planes on both sides of the support body with a rotary drive of the working body, and the manipulator is mounted directly on the working body.

The essence of the device is illustrated by the following drawings.

Figure 1 presents a side view of the equipment.

Figure 2 shows a view of the equipment from the side of the working body.

The proposed equipment consists of a support body with a transverse beam 1 and a rotation drive of the working body 2, expansion cylinders 3 located in pairs in vertical planes on both sides of the support body. The working (rock-cutting) body includes crowns 4 equipped with cutting tools, mounted with the possibility of radial movement and equipped with individual drives 5 of rotation of the crowns, and a manipulator 6 with a grip 7 for installing tubing lining.

The equipment is equipped with a stepping mechanism for longitudinal movement with expansion cylinders 3 and 8, arranged in pairs in vertical planes on both sides of the support body, longitudinal movement cylinders 9 and 10, as well as a monorail 11 with hoist 12 for delivery to the face of the tubing of the tunnel lining and other materials.

The equipment works as follows. When the crowns 4, the working body 2 are rotated and the stepper mechanism is fed longitudinally using the hydraulic cylinders 9 and 10, the face is destroyed and, depending on the installed radial position of the crowns 4, an increase or decrease in the diameter of the tunnel is provided. Following the movement of the equipment in increments depending on the working stroke of the hydraulic cylinders of longitudinal movement 9 and 10, the hydraulic cylinders 9 provide a longitudinal feed of the monorail 11. After feeding and installing the tubing manipulator of the next ring, the driving cycle is repeated.

Thus, the same set of equipment ensures the achievement of the goal, namely, the possibility of holding a tunnel of variable diameter and expanding the already passed tunnel, as well as the safety of replacing cutting tools on crowns, which is performed in the fixed part of the tunnel.

Claims (3)

1. Equipment for holding a tunnel of variable diameter and expanding a previously completed tunnel consisting of: a rock cutting body with crowns equipped with cutting tools, mounted for rotation relative to the transverse beam of the support body, equipped with spacer hydraulic cylinders, a stepping mechanism for longitudinal movement and a manipulator with a grip for installing tubing lining, characterized in that the crowns are made with autonomous drives of rotation, are installed in the rock cutting body with the possibility of radial movement, and the expansion cylinders are arranged in pairs in vertical planes on both sides of the supporting body. 2. The equipment according to claim 1, characterized in that the expansion cylinders and the stepping mechanism are located in the fixed part of the tunnel and rely on the inner surface of the mounting tubing. 3. The equipment according to claim 1, characterized in that the manipulator is installed directly on the working body.

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