Door locks are an important part of car accessories. The quality of performance directly affects the safety of people and property in car use. Door locks are of great significance to improve car performance. Lubricating grease plays an important role in the protection, noise and life of the automobile door lock system in the stable operation.
The effect of grease on the door lock:
From the analysis of the movement properties, material composition and structure composition of the friction pair of the door lock mechanism, the selected grease has the following functions:
1. Friction and wear are the reflection of the comprehensive effect of the mechanical system on external factors. Lubricating grease must reduce friction, wear resistance, lubricate, and extend the life of the locking mechanism.
2. Metal parts such as the lever, slider, torsion coil, tension spring of the door lock mechanism are affected by the external environment (such as acid, alkali, water vapor), and their anti-rust effect, that is, the protection of grease must be considered.
3. The locker worm gear has high matching accuracy, poor meshing and heat dissipation, and the grease requires good heat dissipation, which can reduce noise.
4. In the actual application of the locker, the company considers the problem of waterproof and dustproof to weld the shell. The sealer cannot be replaced with grease during use, and the grease needs the function of "lifetime lubrication".
Where oil is needed:
Door lock body: push rod pin, swing rod, buckle, lock block, stop pawl, return spring, etc.
Lockers: worm gears, worms, reduction gears, etc.
Grease requirements of the locker:
According to the situation and technical requirements of the door lock, the performance of the grease should have excellent low temperature resistance, good adhesion, lubricity and excellent cushioning performance, long-term operation noise reduction, water resistance, rust and corrosion protection , Good compatibility of various plastics and elastomers, oxidation safety, mechanical stability and anti-aging ability, long life.
