Core features, application scope and operation rules of lotion crane (taking hydraulic drive crane as an example)

1、 Core Features

Efficient and flexible transmission form

Adopting hydraulic transmission (hydraulic mechanical transmission), the hydraulic pump is driven by the engine to convert mechanical energy into hydraulic energy, which drives various working mechanisms through distribution valves and directional valves.

Advantages: Compact structure, light weight, good speed regulation performance, smooth transmission, suitable for scenarios that require frequent start stop and precise control.

Disadvantages: Low overall efficiency, requiring regular maintenance of the hydraulic system to prevent leaks.

Accurate and controllable homework parameters

Variable amplitude time: The time required for the boom to retract from its maximum amplitude to its minimum amplitude (or reverse), measured in seconds (s), reflecting the efficiency of boom extension and contraction.

Telescopic arm time: The speed at which the boom extends from the shortest to the longest (or reverse), measured in meters per minute (m/min), which affects the operating range.

Maximum rotation speed: The rotation speed of the turntable at the highest speed of the hydraulic pump, measured in revolutions per minute (r/min), determines the horizontal rotation flexibility.

Strong adaptability to driving performance

Maximum driving speed: The maximum speed of a truck crane at its maximum total weight, measured in kilometers per hour (km/h), suitable for long-distance transfers.

Maximum climbing slope: The maximum slope (percentage) at which a crane can pass at the lowest speed on a specified slope, reflecting its ability to pass through complex terrain.

2、 Application scope

construction site

Material lifting: lifting heavy objects such as steel, concrete, glass, etc. to high-rise buildings or large industrial plants.

Equipment installation: Accurately locate components of heavy machinery such as tower cranes and crawler cranes.

High altitude operation: The straight arm crane is suitable for high-altitude maintenance and installation due to its wide lifting range and stable operation.

port terminal

Container loading and unloading: Large bridge cranes and gantry cranes can quickly transport containers, improving logistics efficiency.

Bulk cargo handling: Equipment such as electric hoists and manual hoists assist in the lifting and handling of bulk cargo (such as coal and ore).

industrial production

In the field of chemical engineering, electric hoists are used to lift chemical liquids into reactors, avoiding the risk of manual handling.

Power production: Large gantry cranes are used to lift boilers and other equipment to the installation location of thermal power plants.

Automobile manufacturing: The gantry crane is used in conjunction with sliding rails and electric hoists to achieve the lifting and maintenance of automobile bodies.

special scenario

Mining: Crawler cranes are used to dismantle and assemble mining equipment, adapting to harsh environments such as open-pit coal mines.

Aerospace: Assemble aircraft using gantry cranes and assist with maintenance using rotating platforms to ensure high-precision operations.

Sports venue construction: Large tower cranes lift audio and lighting equipment to the top to meet complex installation requirements.

3、 Operation rules

Pre homework inspection

Equipment status: Check whether the brake, hook, wire rope, and safety device are normal, and operate only after troubleshooting.

Load limit: Confirm that the load indicator device is functioning properly and avoid overloading (the comprehensive error of the overload limiter is ≤ 5%, and an alarm is triggered when the rated load is 90%).

Environmental assessment: Ensure that the work area is free of obstacles, the ground is flat, and high-altitude operations are suspended when the wind is strong.

Standardization in homework

Signal compliance: Operate according to the command signal, and immediately execute the emergency stop signal to avoid diagonal pulling and hanging.

Safe distance: Do not pass over personnel during lifting, and issue a warning when heavy objects approach ground personnel or safety passages.

Steady operation: When the heavy object approaches the rated lifting capacity, first try lifting it (small height, short stroke), confirm that the brake is normal, and then lift it steadily.

Post homework maintenance

Power outage inspection: In case of sudden power outage, turn on the control power and check the operation status of the crane before resuming work.

Maintenance: Cut off the main power supply and hang or lock it. Notify the supervisor before troubleshooting, and regularly replace aging parts.

personnel collaboration

Command signal: Clear hand gestures, whistle sounds, flag signals, etc. When multiple people are tied up, one person is responsible for commanding.

Entering the suspension area: Contact the driver first, set up the support device, and then enter below the suspended heavy object.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment