SU594005A1 - Landing gear for two-level mine hoist cage - Google Patents

Description

(54) PRESENTATION OF DOUBLE-DECK CELLS OF MINE LIFT

BACKGROUND OF THE INVENTION The invention relates to transport, namely, landing gears of mine stands.

Known landing device of a two-storey cage of a mine hoist, containing movable support heads, brake and cushioning ropes, interconnected. Transitional coupling, and cable-screw shock absorbers 1.

However, such a device does not claim a danger of flooding the stand in the sump during an emergency re-elevation, which does not provide the required operational safety.

The purpose of the invention is to increase safety in operation.

For this, the device is provided with vertical and horizontal guides, carriages mounted on horizontal guides and interacting with controlled stoppers and a fist in contact with the cage, mounted with the ability to move in vertical guides and interconnected by means of a return cable with a transition coupling. rope-mounted shock absorbers are installed on the specified carriages.

FIG. 1 shows the position of the moving elements of the device when unloading the lower floor of the stand; in fig. 2 - the position of the moving elements of the device when unloading the upper floor of the cage; in fig. 3 - the position of the moving elements of the device during an emergency landing of the cage with a speed exceeding the allowable (re-lifting).

The device contains a movable carrier 1, sliding software with vertical guides 2, lower and upper supporting arms 3, tensioning device 4, deflecting blocks 5, brake cable 6, return cable 7 with deflecting blocks 8, rope-type shock absorber 9 with suspension cable ten.

A carriage 11, on which a cable-screw shock absorber 9 is fastened, is mounted in the guide frame 12 and is held by the stopper 13 in the rightmost position. The return cable 7 is at one end attached to the carriage 11, and the other to the fist 14. The fist 14 can slide along the guides 15 and is held in the uppermost position by the latch 16.

Claims (1)

The brake cable 6 at one end is fixed in the tension device 4, passes through the deflecting blocks 5 and the other end is connected to the damping cable 10 by means of a transition sleeve 17, which is fixed in the carriage 11 by a safety check 1 The safety check is designed for a load slightly greater than 1 / 4 weights of a two-story cage-19 with loaded trolleys. The device works as follows. When stand 19 approaches the device at a permissible speed (landing speed), the movable beam 1 takes the load from the stand and transfers it through the deflecting blocks 5 and the brake cable b to the tensioning device 4 and to the carriage II. A part of the load, which is attached to the tension device 4, is perceived by the upper console 3, and the other part of the load is perceived by a check and transferred through the carriage to the stopper 13. Cage 19 is prepared for the exchange of trolleys in the lower floor. To exchange the trolleys in the upper floor of the cage, the cage is raised, the stopper 13 is opened, after which the cage is lowered until the movable beam 1 descends onto the lower cantilevers 3. At this time, the brake cable, moving with the beam 1, moves the carriage 11 to the extreme left position, which, in turn, with the help of the return rope 7 and the deflecting units 8 moves the fist 14 downwards. Cage 19 is prepared for unloading the upper floor. After unloading both floors, it rises, pressing on the fist 14 and the return cable 7, and returns the carriage 11 with the shock absorber 9 to its original position. The stopper 13 is closed and holds the carriage 11 in the extreme right position. During an emergency landing of the cage to the mobile beam, the energy developed by the cage and transmitted through the brake cable b to the check 18 cuts it off, as the stopper 13 holds the carriage and the cushioning cable 10 in the shock absorber 9 starts, and the cage energy is quenched. After an emergency landing, the entire device is inspected, the cushioning ropes are replaced, and the carriage 11 and the front beam 1 are set to the position shown in FIG. 1. Guides 2 serve to prevent the movable beams 1 from turning out during an emergency landing and to guide these beams on the cantilever 3 when moving them together with the cage. The proposed safety device for a two-story stand, which is also a landing device when exchanging trolleys on the lower horizon in both the lower and upper stands, reduces the depth of the stand in the sump during an emergency lift and eliminates a hard landing of the stand. Claims The landing device of a two-storey cage of a mine hoist, containing movable support beams, brake and cushioning ropes, interconnected by a transition coupling, and rope-and-screw shock absorbers, characterized in that it is provided with vertical and horizontal in order to improve safety in operation carriages mounted on horizontal guides and interacting with controlled stoppers, and in contact with the cage fist, mounted with the possibility of Places in vertical guides and interconnected by means of a return rope C; coupling, while the canal-screw shock absorbers are installed on these carriages. Sources of information taken into account in the examination:, 1. USSR Copyright Certificate 1.173392, M.fcn H 66 W 5/08, 24.04.65 I fig 1