20 10 who has a new formula for calculating the clearance of elevator inspection, hydraulic pressure and heavy buffer distance in spring? Thank you! ! !

Sorry, it's too late! This problem is very complicated and needs a lot of space to explain it clearly. I'll explain it in the simplest way, hoping to help you.

1, assuming:

The rated speed of the elevator is V m/s, 1: 1, and no components are installed at the top of the shaft, that is, the floor. The highest part of the roof is the roof guardrail.

2, measurement and calculation:

For the top floor of the elevator, measure the distance L from the car roof guardrail to the top of the shaft, and the maximum value of counterweight overtravel (set as h) shall be:

H=L-(0.3+0.035×V×V)- Buffer compression stroke (set to S);

3. How to get "s":

If the buffer is (1) hydraulic, read it directly from the nameplate or measure it after compression;

(2) Polyurethane, 90% of the total height;

(3) spring, nameplate reading or 0. 135×V×V calculation, but not less than 65 mm ..

If the value of h is too large, it is important to consider the length of the car skirting board.