Conical Bevel Large Modulus Steel 45# Cast Helical Gear Wheel
Overview
| Model |
| Type | Round/Worm gear/bevel/Non-round /Rac Plastic stainless steel |
| Tooth shape | spur/bevel/curve/double gear |
| Production type | Casting/cutting/rolling/sintered gear |
| Wrapped | wooden box |
Application scope
| textile, agriculture, mining, food, oil and other transmission
machinery |
| Hardness | hardening |
| MOQ | ≥100 pieces |
product introduce
| Name | Conical Bevel Large Modulus Steel 45# Cast Helical Gear Wheel |
| Machining module | 0.2-10 |
| Materials: | stee45#l, 40CR, Easy car iron (1214#), brass, tin bronze,
POM(Sisteel), PVD, PVDFl, imported nylon, stainless steel 303#,
stainless steel 304#, aluminum 606#, aluminum 6063# |
Surface treatment: blackening, | high frequency, carburizing and quenching, surface nitriding, etc |
| Processing equipment: | CNC lathes, automatic lathes, general lathes, hobbing machine, gear
shaper, gear milling machine, shaving machine, milling machine,
grinding machine, wire cutting, etc |
| Processing technology | hobbing, gear, shaving, milling teeth |
| |
common spur gear specifications
| Common spur gear specifications |
| Modulus | 1M | 1.5M | 2M | 2.5M | 3M | 4M | 5M |
| tooth thickness | 10mm | 15-18mm | 20mm | 25mm | 30mm | 35-40mm | 40-50mm |
| inner hole | The blank hole |
| setting method | Outer diameter = module * (Number of teeth -2) |
The basic introduction of gears
Gear; A mechanical component with teeth on the rim that can
continuously engage to transfer motion and power is a mechanical
component with teeth that can mesh with each other. The diameter of
the big gear is twice that of the small one. If the big gear does
not move, how many times does the pinion revolve around the big
one? Conversely, if the pinion does not move, how many times does
the big pinion revolve around the pinion? The big gear does not
move, the small gear along the big gear revolution one week, the
small gear rotation one week; When the pinion does not move, the
big gear rotates once around the pinion, and the big gear rotates
once and a half, i.e., once at 240°, once and a half at 360°, two
times at 480°, and three times at 720°.
Gear is a mechanical part with teeth that can mesh with each other.
It is widely used in mechanical transmission and the whole
mechanical field. Modern gear technology has reached: gear modulus
0.004 ~ 100 mm; Gear diameter from 1 mm to 150 meters; Transmission
power up to 100,000 kilowatts; Speed up to hundreds of thousands of
RPM; The highest circumferential speed is 300 m/s.
Role of gears
Gear is a mechanical part with teeth that can mesh with each other.
The application of gear in transmission appeared very early. At the
end of the 19th century, the development of the principle of tooth
cutting method and the use of this principle of tooth cutting
special machine tools and tools have appeared, with the development
of production, the smoothness of gear operation by attention. The
role of gear is to transfer the rotation of one shaft to another
shaft, but also to achieve deceleration, increase, change and
reverse action.
Material is introduced
The steel commonly used in the manufacture of gears is tempered
steel, hardened steel, carburized hardened steel and nitriding
steel. Cast steel has a slightly lower strength than forged steel
and is often used for larger gears; Gray cast iron has poor
mechanical properties and can be used in light load open gear
transmission. Nodular cast iron can partly replace steel in making
gears; Plastic gear is mostly used for light load and low noise
requirements, and the gear with good thermal conductivity of steel
gear.
In the future, gear is developing towards the direction of heavy
load, high speed, high precision and high efficiency, and strive
for small size, light weight, long life and economic reliability.
The development of gear theory and manufacturing technology will
further study the mechanism of gear tooth damage, which is the
basis for establishing a reliable strength calculation method, is
the theoretical basis for improving the bearing capacity of gear
and prolonging the life of gear.A new tooth profile represented by
arc tooth profile is developed. Research new gear materials and new
technology of gear manufacturing; In order to improve the
smoothness of gear operation and increase the contact area of gear
teeth at full load, the gear bearing capacity is improved by
studying the elastic deformation, manufacturing and installation
errors and the distribution of temperature field.
Friction, lubrication theory and lubrication technology are the
basic work in gear research. The study of elastic fluid dynamic
pressure lubrication theory, the popularization of synthetic
lubricating oil and the proper addition of extreme pressure
additives in oil can not only improve the bearing capacity of tooth
surface, but also improve the transmission efficiency.
Processing method
Involute gear processing methods have two categories, one is the
copying method, with a forming cutter milling gear groove, is
"imitation shape". The other is the generativity method.
(1) Hobbing machine hobbing: can process 8 module below the helical
teeth
(2) Milling machine teeth: can process straight rack
(3) Slotting machine gear: can process internal teeth
(4) Cold beating machine teeth: no chip processing
(5) Gear planer gear: can process 16 module gear
(6) Precision casting teeth: cheap pinion can be processed in large
quantities
(7) Gear grinding machine: can process the gear on the precision
master machine
