The Application of Gearboxes and Questions in Using

When high dynamic responses are needed, engineers need to carefully adjust the servo to, preferably with attached loads, for the most sensitive performance. Tuning can provide moves faster and minimize the spongy motion while reducing the overshoot or ringing after movements is complete.

The force of gravity acting on the load is perhaps the most common source of radial loads, but other sources are possible, depending on the physical device attached to the output shaft. Additional external bearings may be necessary with fillers in order to minimize these forces and extend the life of the internal bearings of the gearbox.

Designers must also pay attention to radial load and thrust load specifications. Thrust axial load is the force acting on the axis of output shaft; a radial load acting perpendicular to the output shaft.
A common way to minimize the game is to approach all target positions from a common direction. In case cringe is needed, some designers suggest charging past the desired position and return from the common direction.
A classic example of a precision transmission application is an indexing table with several work stations or assembly. Precision gearboxes and servo fit well when the table is relatively heavy and must be accurately positioned and when the high speed operation is not as important.
In this case, the gear reducer is used simply for precise torque multiplication. Maximum speed of 3,000 to 5,000 revolutions per minute of the booster is not necessary to load, so that the speed reduction ratio and corresponding torque multiplication can be significant. This allows a relatively small servo system to handle the task. The servo could even use its built-in indexer to control the movement based on the digital I / O signals from a controller, or even a simple selector, depending on the level of automation required.

Precision servo gear units and can be used to answer a wide range of automation challenges. Machine builders must purchase the components necessary for a competent supplier who will stand behind their products. The use of online screening tools can simplify the choices, although the system will require the agreement after installation. When properly designed, specified and tuned, these systems provide accurate and repeatable results for many years.

Another example of gear reducer transmission application is a pick-and-place high-speed device, for example under withdrawal of an injection molding machine. The cycle time of these machines is often critical to meet production quotas, and the designer usually wants to remove as soon as possible after the opening parts of the mold.

The mobile arms of the pick-and-place device are designed to be as light as possible, but the inertia lag can still be a factor. The gearbox can minimize the offset so that the pick-and-place mechanism is extremely reactive.
The PLC in this example could be much more involved in the control of movement, commanding moves with pulse and direction signals. In some cases, the controller also requires setting values ​​of revenue to the inverter when the motion profile or inertia changes to Part-taken.