Does the elevator need to replace the wire rope when replacing the traction sheave?

When replacing the traction sheave in the elevator, the steel wire rope should be replaced at the same time.

Replace the traction wire rope and traction sheave.

( 1)? Prepare tools

(2)? Preparatory work:?

The elevator stops at the top floor, and the construction workers enter the pit to measure the current buffer distance, then hold up the reused 2.3-meter-long iron pipe and cut off the power supply of the computer room. Check the height of the compensation chain from the ground and adjust it accordingly. Lift the car to the corresponding height with a manual hoist. Lift the safety tongs, make the safety tongs wedge move, and then loosen the winch slightly, so that the gravity of the car is mainly borne by the safety tongs.

(3)? Rope changing structure:

1, put the ladder in into the pit, the construction personnel fasten their seat belts and safety helmets, first remove the rope head on the counterweight side, and the computer room personnel pull the wire rope to the computer room. Then loosen the rope head on the top side of the car, and the construction personnel in the machine room will pull a section of wire rope on the top of the car to the machine room, remove the taper sleeve, and reverse the rope head according to the production process requirements of the installation manual 5. 14.2.3 compiled by the company.

2. Put the inverted rope end back on the top of the car, put on the pull rod and secondary protection, and then put the other end down from the hole on the counterweight side until it reaches the bottom pit. Mark the end put into the pit flush with the counterweight pull rod, pull the marked end out of the hall door on the second floor, cut off the redundant rope according to the field situation, put the taper sleeve at this end back into the pit and connect it with the counterweight pull rod.

3. Raise the car, restore the safety clamp, and slowly lower the car. When descending, pay attention to whether the pull rod is in the groove and whether the weighing device is reset.

4. After the car is in place, dismantle the tooling in reverse and send electricity to the elevator.

5, idling test run, adjust the tension of wire rope and compensation chain according to process requirements.

(4)? End of construction:

Check whether there is any abnormal collision after the express train runs. After confirming that it is completely normal, clean the machine room, car roof and bottom pit, arrange tools, and check with customers to end the construction.