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People have been using actuators since the middle of the 19th century. Of course, the basic principles of their work have changed drastically since then, which has led to an evolution of their use. Most motors and drives have been used to trigger a circular movement. True linear actuators are the result of more recent scientific discoveries, and their creation has definitely changed the way a lot of devices work. Let’s take a look at some of the most popular and notable ways these engines are used.
Professional Uses
Linear actuators are used in many areas, and a lot of uses are nearly impossible for a novice to replicate. Here are some of the ways professionals use these drives:
1. Space exploration
The space race of the ‘60s led to a huge technological advancement that has since seeped into our everyday life. However, linear actuators of high accuracy that are used for space vehicles and rovers are yet to be adopted for general use.
2. Automobile industry
In modern cars, you can control almost every part from the driver’s seat. You’re probably so used to it that you cannot think of any other ways it could work. Actually, this automation is a relatively new thing and it works mostly thanks to linear actuators.
The Ways You Can Use Linear Actuators
Conceptual design of a basic traveling-nut linear actuator.
Even if you’re a complete amateur, there are projects you can realize with the help of linear drives. Some of the most common, yet interesting ones include:
1. Basic robotics
Important developments and new discoveries in physics of semiconductors have led to a wider availability and huge cuts in price for electronics. This has led to the rise in popularity of robotics as a hobby. Think about it: you can build your own robot in the comfort of your house! Linear actuators are an integral part of many robotic systems, so buy one on Progressive Automations and start experimenting right away.
2. Hidden compartments and shelves
Such implementations are very common for small rooms and spaces with minimalist design. In both cases, it is convenient to have TV-sets and other large furniture easily hidden right after use. Here’s where the actuators come in: with them you don’t have to move things around manually. Just press a button and feel like a magician who makes things disappear.
Overall, you do not need to have a particular set of skills to be able to use linear actuators. Just be creative and do not be afraid to experiment!
Factors to consider
Precision
It is first step to evaluate the level of accuracy and repeat-ability that will be necessary in the application. The maximum repeat-ability of the bearings and winders is usually obtained with the pinion actuators and belt transmitters or rack. In contrast, a linear encoder can be used for greater precision of movement.
Bearing transmission load
Depending on the structure of linear actuators, the load capacity for linear movement will vary.
It is necessary to evaluate the dynamic loads, the moment of bending and pushing to find the right actuator for packaging lines of heavy loads.
Space and career length
Longer runs, for example of a length greater than eight meters, require pinion and rack actuators. On the other hand, those with a smaller size can work with different actuators.
Work with linear movement
Depending on the workload, the actuators must be one or the other.
In addition, for very intense cycles should be performed maintenance and lubrication more frequently than if it were a lower workload.
Structural characteristics of the actuator
Most aluminum actuators to combine strength and lightness. The structure of the profile is also fundamental: a greater thickness and correct geometry will allow obtaining a greater rigidity and inertia.
