SU473834A1 - Suspended mine crane - Google Patents

Description

FIELD OF THE INVENTION The invention relates to mining, namely, to the mechanization of tunnel works.

Suspended mine cranes are known, including a frame placed on a monorail with the help of undercarriage carts and equipped with extension levers, a boom made in the form of a parallelogram, and a turning console platform.

In order to capture the effectiveness of the installation work, the console platform of the proposed crane is equipped with a built-in cable lift with a hydraulic jack, on the rod of which a slider with a rotary holder is placed.

FIG. 1 shows the proposed crane; in fig. 2 - outrigger system with power cylinders.

The crane includes frame 1, made in the form of a figured cross with consoles 2 connected to driving carts 3, a U-shaped stand 4 to which the main - parallelogram part of the boom 5 is pivotally attached, power booms and ti 7 parallelogram. In addition, the crane is equipped with a control panel 9, a power station 10, and outrigers 11, a power cylinder and 12, and a ski 13, which are rotatable around the axis 8.

The boom 5 and the ti 7 are connected to the bracket 14 with the help of fingers 15. The bracket is equipped with sleeves 16 for connection with the cantilever part 17 of the boom and power cylinder 18 with a rail which engages with the rod 19 mounted on the axis 20 rigidly connected with console part. Inside the cantilever part 17, there is a rope hoist consisting of a 2U power cylinder of blocks 22, a rope 23 and a hook 24. On the cantilever part there is a slider 25 attached to the rod of the power cylinder 21 with a swivel support 26. The crane moves along the monorail 27 suspended to top kam lining.

The design of the crane provides its movement along the side, raising and lowering the boom, as well as turning its cantilever part in a horizontal plane and lifting the load from the trolleys in small workings.

Crane works as follows.

At a distance of 20–40 m from the bottom of the working area, a pallet 28 is installed, on which, with the help of a crane, the tops 29 and 30 are fixed, fixed by a cable. The assembled pallet with tops and stoppers is lifted with a crane upwards and is moved to the bottom, where it is installed on sliding beams. After that, the boom is lowered, and the crane is moved into the bottomhole zone to perform the exchange of trolleys when loading rock, unloading support elements from trolleys and delivering them to the face, as well as loading rock into the filling device. The support is installed in the design position with the help of the slider 25, the swivel bearing 26 and the pinion swivel mechanism.

Subject invention

Suspended shaft crane, including a frame placed on the monorail using

traveling trolleys and equipped with extension levers, an arrow made in the form of a parallelogram, and a swivel cantilever platform, characterized in that, in order to increase the efficiency of installation work, the cantilever platform is equipped with a built-in cable jack with a hydraulic jack, on the shaft of which a slider with a swivel support is placed .