240 mm Sheave Diameter Elevator Safety Parts Overspeed Governor

Elevator Safety Parts: Overspeed Governor

The Overspeed Governor is a fundamental safety component in elevator systems, designed to prevent catastrophic accidents caused by excessive speed. This critical device consists of a flywheel mechanism, centrifugal weights, and a tripping device that activates when the elevator exceeds predetermined speed limits.

Operating on mechanical principles, the governor connects to the elevator car through governor ropes. When descending speed surpasses the rated limit (typically 115-125% of normal speed), centrifugal force causes the weighted arms to swing outward, engaging the braking mechanism. This action simultaneously triggers the safety gears to clamp onto guide rails, bringing the elevator to a controlled stop.

Modern overspeed governors incorporate both mechanical and electrical components, with some advanced models featuring electronic speed monitoring for enhanced precision. The device must comply with international safety standards like EN 81-20/50 and ASME A17.1, undergoing rigorous testing to ensure reliability.

Regular maintenance is crucial, including:

• Monthly visual inspections

• Annual speed verification tests

• Lubrication of moving parts

• Rope tension adjustments

This overspeed governor is one way
With mechanical remote reset and trigger function
Using with one way safety gear

FAQ
1. Are the elevator wire ropes durable?
The elevator wire rope has special provisions and requirements. Configuration is not only for wire rope and rated load, but also considered the size of the traction, as a result, the tensile strength of wire rope is greater than the weight of the lift. The safety factor is equipped with more than four wire rope. So it won’t break at the same time.
2. Is it dangerous for power failure suddenly during the elevator running?
If it occurs, the elevator will automatically stop due to the electrical and mechanical safety device. In case of power failure,elevator brakes will automatically taken. In addition, the power supply departments such as planned outage, prior notice are also operating.
3. Will us be hurt when it closed suddenly?
In the closing process, if people touch the hall door, the door of elevator will automatically restart without any danger. With anti clamping switch, once the gate touched, this switching action make the elevator unable to be closed and even reopened. In addition, closing force is also available here.
4. How the elevator running?
Elevators are operated with a counterweight wire rope through the (tractor) traction drive, making ups and downs on the guide rail.
5. Is the escalator installation complicated?
We believe the functions of an escalator are not necessarily proportional to the operation complexity. Therefore, escalators designed by us apply an integrated structure, so that the equipment is more precise and more efficient and allows easier and more convenient commissioning.
6. Do you have any cerifications?
Yes, we do with ISO9001 / CCC / CE Certificates for u.