Introduction Of Rail Catcher

Rail Catcher is an important safety equipment for lifting and transporting inclined shafts in coal mines. It is installed in the underground inclined tunnel of the coal mine. The position sensor is used to obtain the control signal for synchronous operation with the winch, so that the parking network is in the "normally closed" protection state, such as A sports bumper occurs due to ropes, decoupling, etc., and a flexible buffer can be used for effective interception. The third block of one slope meets the  requirements of Article 370 of the “Safety Regulations for Coal Mines”: “The sports car guards that can stop the running ropes and the unhooked vehicles must be installed in the inclined shafts”, “The car blocking devices must be closed frequently. The square door is open, and “doubles as the inclined shaft of the pedestrian car. When the personnel are lifted, the parking device and the sports car protection device in the inclined shaft must be in a normally open state and reliably locked”.

Basic Skills Of Rail Catcher

(1) Position sensor acquisition signal

According to the relevant regulations of the National Security Center, the "normally closed" sports car protection device should use position sensors (proximity switches, shaft encoders, etc.) as sensing elements for receiving signals synchronized with the lifting winch, according to the actual situation of the user. The position sensor can be installed at a suitable location at the winch depth indicator, the winch output shaft, the winch drum, and the like.

(2) "Normally closed" protection function

When the mine-free car passes, the car parking net of the sports car protection device is in the "normally closed" state, so that the entire transportation roadway is in a closed state, which plays a protective role for the sports car. When there is a mine car running down, the mine car runs to a certain distance from the parking net. The car net is automatically lifted and locked. When the mine car is lifted up, the mine car passes through the car net again and moves to the same position. The net automatically falls and enters the "normally closed" state again.

(3) "buffering" interception function

When a sports car phenomenon occurs, the mine car hits the car network and the car network descends with the car. The buffer energy absorber gradually converts the kinetic energy of the mine car into the thermal energy of the buffer mechanism, causing the mine car to decelerate and finally stop, to achieve buffer interception. , to minimize the damage of the mine car.

(4) Automatic fault monitoring function

The electronic control system of the sports car protection device is equipped with multiple fault detection circuits. For mechanical failures and electrical faults, real-time monitoring can be performed, and the alarm circuit and fault code signals are triggered immediately after the fault is found. Inform the winch operator to stop immediately for investigation. According to the user's request, some emergency alarm circuits can be locked with the hoist circuit. In case of emergency, the hoist realizes automatic emergency braking.

(5) Fault information LCD screen Chinese character display function

If the electronic control system adopts PLC control, after the fault detection loop detects the equipment fault, it will be effectively displayed on the digital display in the form of fault code. When the relay is controlled, the fault will be displayed by LED alarm.

(6) Operation status display and sound and light alarm function

The status alarm display is placed near the winch driver's workbench, and can display the landing and landing status of each car, and the mine car runs to the first block of car and other information. When the equipment has sports car interception, mechanical failure, electrical failure, etc., the device The sound and light alarm signal and the fault code signal will be issued at the first time to inform the driver of the winch and other personnel to take corresponding measures. If the electronic control system is controlled by PLC, the speed of the winch and the position of the mine car can also be displayed digitally.

(7) The reliable locking function of the car block lifting mechanism has two types of electric car and pneumatic type car block lifting mechanism for users to choose. The lifting mechanism can realize long-term reliable locking after lifting the car net to meet the passing cars, overhaul personnel, etc. The need for the situation.

(8) Improve insurance function

The lifting mechanism adopts the lifting wire rope to raise the car bar, and the lifting wire rope is provided with lifting insurance. When the car block is intercepted, the insurance is opened and disconnected at the same time, ensuring that the lifting wire rope will not pull the lifting mechanism fixed on the roof of the roadway, maximally Reduced equipment damage.

(9) Reverse automatic opening function

The car bar adopts the reverse automatic forced opening design. When the car is lifted upwards, if the car block is not normally opened, under normal circumstances, the car net can be automatically forced to open to allow the mine car to pass, so as not to pull the car net.

(10) Manual and automatic conversion function

When the passing car or maintenance personnel pass the situation, press the lift button, the car bar is lifted and reliably locked in the "normally open" state, and the device enters the manual control mode. After the person or the person passes, press the down button again, the car bar will fall, enter the "normally closed" state, and the device will enter the automatic control mode again.

Parameter Of Rail Catcher

Photos Of Rail Catcher