worm gear

Abstract

A UK university group has developed 3D modelling called Virtual Reality Machining. Design of previously too complex components is possible, particularly in the field of transmission. A globoid worm-gear drive, with several advantages, is the first product offered for joint development and licensing. Partners will come from heavy machining e.g. elevators, military and mining. 

Details

Worm drives provide an effective way for high-ratio speed reduction and power transmission applications in a limited space using right angle, but non-intersecting shafts. When properly applied, worm drives provide the smoothest, quietest form of drives. There are a variety of worm drives applied in a wide range of applications. One of the state-of-the-art results of research and development is a globoid worm-gear drive.
The globoid worm-gear drive is quite different from the traditional cylindrical worm-wheel drive in that the worm is a globoid worm whilst the wheel is a standard involute helical gear. The tooth surface of the globoid worm is enveloped by a family of tooth surfaces of an involute helical gear.

Innovative Aspects:
With comparison to the conventional cylindrical worm-wheel drive, it has the following advantages:
• Better line contact.
• More teeth engaged.
• Higher load capacity.
• Better lubrication.
• A more compact size.
• Easier manufacturing.

Technology sector	- Design and Modelling / Prototypes - Industrial Manufacture - Traction/Propulsion Systems
Market application	- Industrial Equipment and Machinery - Mining machinery - Industrial trucks and tractors - Motor vehicles, transportation equipment and parts - Construction
Stage of development	Available for demonstration
Patent Rights (IPR)	Secret know-how
	The mathematical model is difficult to invent around. Joint patenting will be considered with partners for specific designs.
Cooperation type	- License Agreement - Joint further development - Testing of new applications - Financial Resources Type of partner sought: Industry, research. Specific area of activity of the partner: Heavy machinery; manufacturers of worm gears. Task to be performed: The university would be responsible for total design and test procedure, and the partners can be responsible for funding, manufacturing and commercial aspects. The group leader can attend the company or institute to join this work.
Organisation type	Research institute/University      Org. Size: > 500