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The function of the buffer spring for cranes

The function of crane buffer springs is mainly reflected in the following core functional dimensions:

⚙️ 1. Youdaoplaceholder1 absorbs impact kinetic energy and protects the equipment structure ‌

When the crane reaches the end of the track or collides with other objects, the buffer spring converts the impact kinetic energy into elastic potential energy through ‌ elastic deformation ‌ for temporary storage ‌, significantly reducing the peak instantaneous impact force (by more than 70%), and preventing the main structure of the crane (such as the frame, wheel bearings) from deforming or cracking due to rigid collisions ‌.

2. Youdaoplaceholder1 suppress rebound vibration to ensure smooth operation ‌

Although spring buffers can store energy efficiently, there is a risk of rebound. Optimized design (such as adding a rebound mechanism) can prevent the crane from retreating or bouncing due to the rebound force ‌. Combined with a hydraulic damping system (such as a hydraulic buffer), the remaining energy is converted into heat energy for dissipation, achieving smooth stopping ‌.

III. Performance comparison of ‌ adapted to different working conditions ‌

Buffer type ‌ ‌ applicable speed range ‌ ‌ core advantage ‌ ‌ crane application scenarios ‌

Spring buffer ‌ 50-120 meters/minute ‌ simple structure, low cost, strong environmental adaptability, suitable for general bridge cranes and gantry cranes

Rubber buffer ‌ <50 meters/minute ‌ lightweight and portable, easy to install, low-speed small crane

Hydraulic buffer ‌ >120 meters/minute ‌ no rebound, double kinetic energy absorption for high-speed/heavy-load cranes

Polyurethane buffers are ‌ heavy-duty working conditions ‌, corrosion-resistant, have a long service life, and high energy absorption efficiency. They are suitable for port cranes and metallurgical cranes

️ IV. Youdaoplaceholder2 System Safety Redundancy design ‌

Collision protection ‌ : The buffer spring works in coordination with the limiter to serve as the last line of defense in the event of brake failure, preventing the crane from derailing or overturning ‌;

Multi-level protection ‌ : Buffers should be installed at the end of the large car track and the position where the two small cars are facing each other to form a collision energy hierarchical absorption network ‌.

summary

Buffer springs undertake three core missions in cranes:

Impact protection ‌ : Absorbing kinetic energy through elastic deformation to protect the integrity of steel structures ‌;

Stable operation ‌ : Suppress rebound vibration to ensure smooth shutdown ‌;

Safety redundancy ‌ : Work in coordination with the limit system to prevent major accidents ‌.

The selection must strictly match the operating speed of the crane (spring type is suitable for 50-120 meters per minute) and the working condition requirements ‌. In heavy-load and high-speed scenarios, it is recommended to upgrade to hydraulic or polyurethane buffers ‌.