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What is a rotary damper?

Release Time:

2022-04-07

A rotary damper is a device used to modify the performance of rotating machinery. Mainly used to change the speed of the kinematic pair to improve its rigidity and resistance characteristics. It is an elastic element with a damping mechanism. In rotating machinery, rotary dampers are used to change the speed of a moving pair to change its stiffness and resistance. It is a device with elastic damping, which can rotate freely, sound or vibration noise, which can reduce noise interference.

A rotary damper is a device that uses rotation to generate damping force to resist rotary motion. The principle of this damping force is that there is a fixed point on the rotating body. When the speed reaches the value, it will rotate. The damping force of this rotation will be related to the rotational speed. The greater the damping force, the faster the rotation and the more effort saving. Rotary dampers are often used in daily life and work and can be used all the time. Rotary dampers are often used in daily life and work and can be used all the time. It is suitable for all kinds of mechanical moving devices that need buffering, reducing friction between devices and prolonging the service life of products. Rotary dampers are used for notebook opening and closing, seat adjustment, mobile phone flips, tablet stands, monitors, etc. What are its characteristics?

1. Speed

According to the change of rotational speed, the torque of the rotary damper also changes. The law of change is that as speed increases, torque increases, and when speed decreases, torque decreases. The starting torque is different from the standard torque.

2. Temperature characteristics

As the ambient temperature changes, the torque of the rotary damper also changes. The change rule is that the torque decreases when the ambient temperature increases, and the torque increases when the ambient temperature decreases. This is because when the ambient temperature changes, the viscosity of the viscous oil in the damper changes accordingly. However, when the ambient temperature returns to normal, the torque also returns to its original value.

What is the problem that the rotary damper is easy to wear? We often see rotary dampers in our life and work. Many companies install machinery while the machinery is in operation. It is suitable for various mechanical movements that require buffering. The device is used for computer optical drives, CD players in and out of warehouses, laptop opening and closing, seat adjustment, mobile phone flips, cassettes, etc. Rotary dampers are used in various fields of electronic equipment production, light industrial production and mechanical equipment production.

The surfaces of the rotary damper are in contact during operation. In order to prolong the service life of the product and reduce the wear and tear, it is very important to select the damping grease of the rotary damper in different use environments. The rotary damper mainly uses damping grease and viscous oil to brake the rotating body parts (resistance). The damping grease sealed in the rotary damper generates damping forces in the motion of the moving parts, depending on the viscosity of the damping grease and the contact area of the oil. amount of torque produced.

Damping greases are used in gear systems, home appliance controls, electronic switch mechanisms, outdoor entertainment equipment, laser controls, TV tuning, measuring instruments, etc. to control activities and reduce noise. Due to its own viscosity, damping grease can also prevent equipment and instruments from being exposed to contaminants such as moisture and dust, avoid sealing between moving parts, reduce wear and prolong product life.