Quality Assurance MG Type Universal Crane Double Main Girder Hook Gantry Crane

Quality-guaranteed general-purpose crane double-girder hook gantry crane double-girder crane type double-girder gantry crane introduces the safety device of the crane
Cranes are used in ports, docks, large warehouses, logistics centers, and construction sites A lifting device used to lift and move heavy objects. There are many commonly used types of cranes: electric hoists, bridge cranes, crawler cranes, Chongqing Crane gantry cranes, jib cranes, tower cranes, beam cranes, mobile cranes, etc. Cranes are also called cranes. Mobile cranes can carry out lifting and hoisting operations without being restricted by the site. Some automobile manufacturing companies use cranes to hoist vehicles.
Due to the type of operation and work intensity, cranes need to install protective devices to prevent accidents. The following editor will introduce to you the protective devices of Chongqing cranes: .3.
.Safety devices: in case of unexpected accidents When the high-pressure hose or oil pipe in the luffing cylinder circuit of Chongqing crane's boom bursts or is cut off, the balance valve in the hydraulic circuit will work, locking the working oil from the lower chamber of the cylinder to prevent the boom from falling, thereby ensuring Operational safety.
.Lifting indicator: The lifting weight indicator is set on the side of the basic arm (that is, the right side of the control room). The operator can clearly observe it while sitting in the control room and can accurately indicate The elevation angle of the boom and the rated lifting capacity allowed by the crane under corresponding working conditions.
Each relief valve in the pressure system: can suppress abnormal high pressure in the circuit to prevent damage to the hydraulic oil pump and motor, and prevent overload status.
.Leg locking device: When an accident occurs and the high-pressure hose or oil pipe of Chongqing crane leading to the vertical cylinder of the outrigger is broken or cut, the two-way hydraulic lock in the hydraulic system can block the pressure in the two chambers of the outrigger and cylinder. Oil prevents the outriggers from shrinking or throwing out, thus ensuring the safety of lifting operations.
. Weight characteristics table: Set on the front lower wall panel of the control room, this table lists the rated lifting weight and lifting height under various arm lengths and various working ranges for easy reference during operation. When lifting, do not exceed the values specified in the table. In order to ensure the safety and reliability of the lifting operation, the crane is equipped with relatively complete safety devices to protect the machine parts or remind the operator to pay attention in case of accidents, thus playing a safety protection role.
. Boom telescopic safety device: When an unexpected accident occurs and the high-pressure hose or oil pipe in the boom telescopic cylinder circuit bursts or is cut off, the balance valve in the hydraulic circuit will take effect and lock the flow from the lower chamber of the cylinder. Working oil will make the crane retract on its own, thus ensuring the safety of the operation.
.Degree limit device: After the hook is raised to the specified height, touch the limit weight, turn on the travel switch, the overturn indicator light will light up, and at the same time, the hook lifting, boom extension, and The crane can be operated safely when the crane is lowered. At this time, as long as the handle is operated such as lowering the hook, retracting the boom, or raising the boom (that is, operating in a safe direction), the limit weight will be released, and the operation will return to normal. In special occasions, if you still need to perform a small amount of bypass operation, you can press the release button on the instrument box. At this time, the limit function will be released. However, the operation must be very cautious at this time to prevent accidents.