Manual and pneumatic valve handle, hand wheel and gear transmission
by:AIRWOLF2021-01-16
manual device driven by manpower reduction gear, to reduce the force required for manual operation, there are usually many rotary and rotary type two kinds.
Gear transmission advantages are simple structure, easy operation.
It is often used to drive the nominal diameter less than mm.
Gear with two gear teeth meshing transmission power and movement of the mechanical transmission, with the main, driven wheel gear direct, transfer movement and power of the device.
According to the relative position of the gear axis parallel to the axis of cylindrical gear transmission, intersecting shaft cone gear drive and the staggered shaft helical gear transmission.
Are characterized by their smooth transmission, the transmission ratio accurate, reliable operation, high efficiency, long service life, use of power, speed, and the advantages of large size range.
Worm gearing wormgearactuator with worm gear institutions opening and closing or adjusting device.
Cylindrical gear cylindricalgearactuator with cylindrical gear mechanism or door opening and closing device.
Bevel gear conicalgearactuator with cone gear mechanism or adjust the opening and closing device.
The characteristics of the gear transmission: constant instantaneous transmission ratio, high working stability;
The non-circular gear, the instantaneous transmission ratio according to the required change rule design;
Large range of transmission ratio change, especially the planetary transmission, the transmission ratio to ~ (
Single stage, applied to slow down or growth drive;
Wide speed range, gear circumferential speed can be from V<
。
M/S to M/S, or higher;
Speed is from n<
R/min to r/min or more;
Range of transmission power is big, high carrying capacity;
High transmission efficiency, especially high precision cylindrical gear pair, the efficiency of eta =.
The above;
Compact structure, less tooth differenced transmission, such as using the planetary transmission, or harmonic gear drive, can make the parts more narrow, a coaxial transmission;
Easy maintenance.
Gear fault vibration, impact and noise during operation, and generate dynamic load;
No overload protection purposes;
Requirements of gear teeth accuracy YAZE (
Pneumatic company's main products: pneumatic pneumatic valve pneumatic ball valve pneumatic butterfly valve pneumatic actuator