Chain Block as an upgrade version of the fixed pulley, fixed pulley fully inherited the advantages of using reverse backstop while reducer and chain brake pulley combination of symmetrically arranged two spur gears rotating structure, a simple, durable and efficient.
mechanical lifting devices
2013年7月19日星期五
What Crane
What Crane
Crane is a lift hoist for hoist equipment .intermittent movement of machinery. A work cycle include: extract extract means to put items from the lift, and then move to the designated place lower level items, followed by a reverse movement, so extract unit returns to original position for the next cycle. Usually by a lift hoist (the items up and down movement), operating agencies (the lifting movement), luffing and slewing mechanism (the article for horizontal movement), plus the metal body, power units, steering control and the necessary combination of auxiliary devices.
In order to ensure smooth and safe Hoist and trolley peration process, the general crane will adopt common safety devices are:
1 from the weight or lifting moment limiting device: Starting weight limiter, lifting torque limiter.
(2) limit the working range limits of device: lifting height limiter, stroke limiter.
3. Ensure the normal work of lifting devices: brakes, limit torque coupling, crane anti-collision device,
Instructions and run the skew adjustment device, buffer, anti-skid devices, safety switches, emergency switches.
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