First, preparation work

1. The test site is selected at the -450 level parking space for people and vehicles, and the track quality of the test site should reach excellent quality;

2. At the lower 5~6 meters of the test site, a strong and dense pillar should be added, and buffers such as sacks filled with wood chips should be piled up, or other forms of vehicle blocking devices should be provided;

3. In the heavy load test, prepare enough sand bags according to the number of full passengers in the train. Each bag of sand weighs 70kg and is evenly distributed on the seats;

4. Before the test, the joints and the flexibility of the various parts of the vehicle should be inspected in detail. The ropes, links, pins and pads of the joints should be connected reliably, especially the moving rotating parts in the starting mechanism and braking device. The wheel sets should be flexible, the lubrication between the oil filling parts is good, and the springs are complete and reliable.

5. Check contents and methods:

1. The size of the main spring after compression should be 350mm;

2. The distance between the impact block and the torsion bar is 80~100mm, and the positioning screws of the collision block should be fastened;

3. The pressure plate bolt of the brake is fully tightened, and the groove of the car body is not obviously deformed, and the upper and lower gaps between the pressure plate and the channel steel are 2~3mm;

4. The front and rear connecting rods move flexibly in the guiding box;

5. The manual mechanism should be flexible and reliable. All the claws on the train should be dropped at the same time after moving the handle of the hand brake.

Second, test methods and eligibility criteria

(1) Static manual drop test

1. Pull the hand brake to check: stop the person in the wellhead position and pull the hand brake claw to fall;

2. Loose rope inspection: park the person in the wellhead position, fix the car body on the rail with wire rope, signal the signal to release the wire rope to relax, and the claws fall;

3. Eligibility criteria: The claws of each section of the vehicle should be reliably dropped.

(2) Heavy-duty full-speed decoupling test

Before the test, the installed sand bag was evenly placed in the car, and the car was lifted 30 meters above the decoupling point to open the brake device claws. Lift the wire rope to loosen the hook, install the unhooker between the main tie rod and the hook head and smash the thin steel wire rope on the pressure plate of the unhooker. The other end of the wire rope is fixed on the rail, and then the brake device is restored. Lift up. At this time, the signal is released, and the vehicle is lowered to the decoupling point, the unhooking device is opened, the mechanism is actuated, and the claws are dropped to the human body to brake.

Eligibility criteria: the air travel distance is 0.68 meters

The buffer distance is 1.24 meters

Third, security measures

1. Before the test, carefully check the parts of the car to ensure that the car is in good condition:

2. During the test, in addition to participating in the test personnel, other personnel shall not enter the test site and the wellbore, and shall be checked by the security officer;

3. Wellheads and downhole signal workers must stick to their posts and pay attention to receiving and transmitting signals at any time;

4. The winch driver should carefully drive according to the signal command, and it is strictly prohibited to operate by mistake;

5. After the test is completed, the site must be cleaned up, and the inspection of the vehicle and the track must be confirmed before it can be put into normal operation.

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