Causes and preventive measures of accidents in inclined shaft sports cars

The main reasons for the occurrence of the inclined shaft sports car are as follows:

(1) Wire rope broken rope sports car. The strength of the wire rope is reduced; the broken wire of the wire rope exceeds the regulation; the wire diameter is reduced excessively or the thickness of the outer wire of the sealing wire rope is excessively worn; the wire rope is rusted excessively; the wire rope is hard bent or kinked; the overload is increased; the vehicle is scraped;

(2) The connecting piece breaks the sports car. The connector has fatigue cracks or cracks; the card is too tight.

(3) Mine car chassis channel steel broken sports car. The corrosion of the chassis channel steel is too limited, and it is lost in management. In the long-term service, it is subject to serious derailment and impact.

(4) The connecting pin pulls out the derailed sports car. There is no connection device that prevents self-shedding; the quality of the track or mine car is inferior and the movement is bumpy.

(5) Bad brake device causes sports car. The brake device has failed, causing insufficient braking force.

(6) The work mistake caused the sports car. If there is no hook or hook, the mine car will be pushed down the alley from the alley; if the car is not closed, the car will be promoted to cause the sports car; under the loose condition, the lifting container will suddenly drop freely, causing the slack rope to impact.

The precautions for the inclined shaft sports car are as follows:

(1) Set up reliable anti-sports equipment and sports car protection device according to the regulations to realize “three slopes of one slope”.

(2) The wire rope connecting device for the transportation of inclined shafts must be tested with a pulling force twice the maximum static load for each change of the wire rope.

(3) The wire rope and connecting device must be strengthened and managed, and special personnel should be inspected regularly to find problems and deal with them in time.

(4) The mine car should be set up by a special person to check. The safety factor of the connecting hook and bolt of the mine car shall not be less than 6.

(5) The connection between the mine car, the connection between the mine car and the wire rope must use a device that cannot fall off by itself.

(6) The hook workers must strictly implement the operating procedures. Before driving, the safety functions of the anti-sports car equipment and the sports car guards must be carefully checked, and the connection status, loading conditions, and number of tractors of each mine car should be checked. Driving signal. It is forbidden to open the car stop device and then carry out the hook operation; it is forbidden to pick up the hook in advance when it is not in the safe parking position; it is strictly forbidden to push the mine car through the slope point when there are more slack ropes; it is strictly forbidden to use unqualified objects. Instead of a protective pin.

(7) Inclined shafts are lifted and the hooks are strictly prohibited. Pedestrians are strictly prohibited when driving.

(8) The quality of the inclined shaft and ballast should be qualified.

(9) The inclined shaft is well supported and there is no debris on the track.

(10) The wire rope head on the drum is fixed firmly.

(11) The winch operator strictly abides by the operating regulations. Before starting the vehicle, the brake device and other safety devices must be carefully checked. The operation should be accurate, stable and fast, and pay special attention to prevent the slack impact.

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