The shock-absorbing casters can adjust the uneven ground because of their special structural composition. Rubber shock-absorbing casters have rubber as the buffering material; spring shock-absorbing casters have springs as the buffering material; there are also some casters with both rubber and spring as the buffering material.
Shock-absorbing casters play a very important role in industry and are measures to alleviate the impact of mechanical vibrations. There are various impact problems in engineering, such as aircraft landing, rapid reciprocating movement of machine tool components, lifting or dropping of packages, etc., which will cause impact on the machinery and foundation. Under the action of impact force, mechanical parts will produce large dynamic stresses, which may cause damage, and surrounding machinery and buildings may also be harmed. Therefore, buffering or isolation measures should be taken against all unwanted impact forces in mechanical engineering. For example, buffering materials must be placed at the bottom of the anvil of forging machinery; in order to ensure that the machinery or instruments are not damaged during hoisting and transportation, reliable buffering measures should be taken. Buffering is different from vibration isolation and vibration reduction. It uses a buffering device to absorb the impact energy, and then converts it into heat energy, or releases it gently to extend the time of speed change, thereby minimizing the impact force on the mechanical equipment.
During the operation of the shock-absorbing caster, the kinetic energy of the object's vibration is stored by the elastomer into its own elastic potential energy. The increase and decrease of the elastic potential energy ensures the safety of the loaded object.
For example, the main difference between buffer series casters and ordinary casters is its shock absorption device:
1. Easy startup.
The buffer series casters use a good iron core and are wrapped with polyurethane wheels. Polyurethane has good flexibility, elasticity and wear resistance. When installed on an equipment truck, it can not only reduce noise, but also have less starting force.
2. Resistant to high load steering.
The caster steering bead plate uses a heat treatment process to heat-treat the bottom plate and large spring cover that carry the steel balls, which can greatly improve its hardness and toughness, enable better steering during high-load traction, and greatly reduce unnecessary wear and noise. Workshop reduces costs. And provide a quiet production environment.
3. Shock absorption performance.
The spring casters use good impact-resistant and anti-seismic springs to make the wheels rotate more flexibly and easily, greatly improving the force-bearing performance, protecting the wheels and brackets, and preventing the wheels from being vibrated when walking on uneven ground, causing damage to the casters and even machinery or goods.
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