Direct drive rotary motor
A rotary electric machine that directly generates a drive is essentially a large torque disc permanent magnet motor that is directly connected to the load. This design eliminates all mechanical transmission components such as gearboxes, belts, pulleys and couplings. Direct drive rotation systems bring many benefits to designers and users. Because a mechanical transmission requires regular maintenance and frequently causes unplanned downtime, direct drive rotary motor technology fundamentally improves machine reliability, reduces maintenance time, and reduces control difficulty.
Frameless direct drive rotary motor
The frameless direct drive rotary motors are the "grandfathers" of direct drive motor technology and, without a doubt, they offer the most compact mechanical servo solutions available today. The frameless direct drive rotary motor uses a separate rotor and stator without the use of bearings. These parts become an integral part of the machine and include the necessary feedback devices. They are ideal for applications where machine space is limited or the total weight has a critical impact.
These motors are inherently custom made and therefore more expensive, requiring weeks and even months of design and integration time. In addition, in the event of a system failure, the removal or replacement of the motor or feedback device is extremely complicated. Therefore, the frameless direct drive rotary motor technology is not suitable for every application. Its most widely used applications are on the airborne and ground vehicles, such as night vision devices, radar systems and weapon system aiming controls, as well as those for size, High-end industrial applications with high weight or performance requirements, such as robots or precision grinders.
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