Shanghai Nuoguang Machinery Co., Ltd.

Shanghai Nuoguang specializes in processing copper worm gears, worm gears, copper gears and other mechanical accessories. The worm gear craftsmanship is exquisite. Shanghai Nuoguang reducer accessories processing, our factory has always adhered to the principle of quality as the foundation and customer first. The price is reasonable and the goods are shipped quickly. We welcome drawings and samples for processing. Our company has many years of experience in processing worm gears. The worm gears are made of tin alloy copper () and aluminum alloy copper (). We can also make ingredients according to user requirements. Worms from single to six heads, module -. The main materials are #, r (quenching R-), (carburizing and quenching R-). The tooth surface of the worm is precision ground, and the tooth profile angle is detected by an optical projector, which greatly improves the transmission accuracy, reduces noise, and extends the service life.
The calculation formula of worm gear:
, transmission ratio
number of worm gear teeth&;number of worm heads
, center distance
(worm gear pitch diameter+worm pitch diameter)&;
, worm gear diameter
(number of teeth +)&;module
, worm gear pitch diameter
module&;number of teeth
, worm pitch diameter
worm Outer diameter-&;module
, worm lead
&;&;module&;number of heads
, helix angle (lead angle) B
(module& ; Number of heads) &; Worm pitch diameter
Copper worm gear module, pressure angle, worm diameter coefficient, lead angle, number of worm heads, number of worm gear teeth, tooth addendum coefficient (taken) and head clearance coefficient (taken. ). Among them, the module and pressure angle refer to the module and pressure angle of the worm shaft surface, that is, the module and pressure angle of the worm gear end face, and are both standard values; the worm diameter coefficient is the ratio of the worm graduation circle diameter to its module. . A worm gear transmission mechanism composed of a worm and a worm gear meshing. A coupling protrusion is provided near the end of the helical tooth of the worm. A braking part is provided on a part of the worm gear. The coupling is achieved by the linked rotation of the worm and the worm gear. The protrusion moves axially and parallel to the mechanism. A coupling protrusion is provided near the end of the spiral tooth of the worm. A braking part is provided on a part of the worm gear. Through the linked rotation of the worm and the worm gear, the coupling protrusion moves in the axial and parallel direction. The direction engages with the braking part to stop the worm. The terminal end of the above-mentioned helical teeth can also be formed into such a coupling protrusion, or a part of the teeth of the worm gear can be removed and a coupling protrusion can be formed on this part. This structure can simplify the design and reduce the cost.
Features of the worm gear transmission mechanism:
It can obtain a large transmission ratio and is more compact than the staggered shaft helical gear mechanism.
There is line contact between the meshing tooth surfaces of the two wheels, and its load-bearing capacity is much higher than that of the staggered-axis helical gear mechanism.
Worm transmission is equivalent to screw transmission and is a multi-tooth meshing transmission, so the transmission is stable and the noise is small.
, self-locking. When the lead angle of the worm is less than the equivalent friction angle between the meshing gear teeth, the mechanism is self-locking and can achieve reverse self-locking, that is, the worm can only drive the worm gear but not the worm gear. For example, the self-locking worm mechanism used in lifting machinery has a reverse self-locking function that can provide safety protection.
, the transmission efficiency is low and the wear is serious. When the worm gear is engaged in transmission, the relative sliding speed between the meshing gear teeth is large, so the friction loss is large and the efficiency is low. On the other hand, the relative sliding speed increases the tooth surface wear and heat seriously. In order to dissipate heat and reduce wear, more expensive materials with good friction reduction and anti-wear properties and good lubrication devices are often used, so the cost is high. .
, the axial force of the worm is relatively large.