Helical gear motor working principle

Wednesday - 26/04/2017 09:40
Helical gear reducer is a compact structure, transmission ratio, under certain conditions, with self-locking function of the transmission machinery.
Helical gear motor working principle
Wherein the hollow shaft gear not only has the above characteristics, and ease of installation, reasonable structure, more and more widely used.

It is the gear reducer input to install a helical gear reducer, consisting of multi-stage gear available to very low output speeds than single-stage gear unit has a higher efficiency and little vibration, low noise and energy consumption .

 helical gear reducer problems and their causes:

   1. fever reducer and oil spills. To improve efficiency, helical gear reducer are made of non-ferrous metals generally do reducer, helical gear reducer is used harder steel. Because it is sliding friction drive, the operation will produce more heat, thermal expansion between the gear parts and seals a difference, so that a gap is formed in the mating surface, the lubricant thinning due to temperature rise, could easily lead to leakage .

   The main reasons for this are four points,

   a. The material mix isunreasonable;

   b. The friction surface engaging the poor quality of the surface;

   c. The amount of lubricant selection is incorrect;

   d. The assembly quality and the environment is poor.

    2. Wear. Usually tin bronze, paired with 45 steel hardened material to HRC4555, or after 40Cr through hardened HRC5055 worm Grinding to roughness Ra0.8μm. Reducer wear during normal operation is very slow, some gear can be used for more than 10 years. If you wear faster, we must consider the selection is correct, whether overload operation and helical gear reducer material, assembly quality or environmental reasons.

    3. The drive small helical gear wear. Generally occurs in the vertical installation of the reducer, and amount of principal and lubricating oil variety. When vertical installation, can easily lead to insufficient amount of lubricating oil, gear stopped, the transmission between the motor and gear reducer oil loss, lack of proper gear lubrication protection. When the machine starts deceleration, gear due to the lack of effective lubrication leads to mechanical wear or damage.

    4. bearing damage. When a fault occurs, even if the gear box sealed, still often found within the gear reducer oil has been emulsified, bearings rust, corrosion and damage. This is because the gear after running for some time, gear oil temperature rise after cooling and condensation of water mixed with water. Of course, closely related to the quality and bearing assembly process.

 

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