Among all kinds of handle devices, the shock absorption effect of handle rubber shell is very important, which directly affects the user's operating experience and the service life of the equipment. The selection of rubber elastomer is the key factor in determining the shock absorption effect.
First, about the shock absorption effect test. One of the common test methods is impact test, which evaluates the shock absorption effect by simulating the impact conditions that the handle may suffer during actual use. For example, a special impact tester can be used to set different impact energies and frequencies, fix the handle equipped with rubber shell on the test bench, and then let the impact head hit the handle in a predetermined way. During the impact process, the sensor is used to accurately measure the peak value, duration and magnitude of the force transmitted to the internal components of the impact force on the handle. By comparing the changes in these parameters with or without rubber shells and with different rubber shells, the advantages and disadvantages of its shock absorption performance can be intuitively understood.
In addition, vibration testing is also an important means. Place the handle on a vibration table, set different vibration frequencies and amplitudes to simulate the vibration environment in daily use. Similarly, the vibration of the key parts inside the handle is monitored with the help of sensors, and the degree of vibration attenuation of the rubber shell is analyzed. For example, taking the game handle as an example, accurately measure how much vibration energy the rubber shell can absorb and transform in different game operation scenarios (such as intense competitive game actions) to determine whether the shock absorption effect meets the use requirements.
Secondly, the basis for the selection of rubber elastomers. The hardness of rubber is the primary consideration. Generally speaking, rubber elastomers with moderate hardness perform better in shock absorption. Too hard rubber may not be able to effectively buffer impact and vibration, while too soft rubber may deform excessively when subjected to greater pressure and lose its shock absorption effect. For example, for some handles that require frequent key operations and may be subjected to greater impact forces, rubber elastomers with a Shore hardness between 40 and 60 can be selected.
Furthermore, the elastic recovery ability of rubber should not be ignored. Rubber with good elastic recovery ability can quickly return to its original state after being squeezed or stretched, thereby continuously and effectively playing a shock absorption role. Natural rubber and some of its modified products often perform well in elastic recovery and are a good choice for handle rubber shell selection. In addition, the aging resistance and wear resistance of rubber also need to be considered comprehensively. After all, the handle rubber shell will face the test of various environmental factors during long-term use. Only by choosing rubber elastomers with multiple excellent properties can the handle rubber shell have a good shock absorption effect and provide users with a comfortable and durable operating experience.
