What are the advantages of linear motors? Then we have to start from its concept and structure. The advantage of linear motor is that it directly produces linear motion. Compared with the "rotary motor, rolling screw" which indirectly produces linear motion, its specific performance is as follows:
(1) The linear motor has no mechanical contact, and the transmission force is generated in the air gap, and there is no friction other than the linear guide;
(2) The linear motor has a simple structure, small volume, linear drive with a small number of parts, and only one moving part;
(3) The linear motor travel is theoretically unrestricted, and the performance is not affected by the change of the stroke;
(4) Linear motors (linear motors) can provide a wide range of speeds, from a few micrometers per second to several meters, especially high speed is a prominent advantage;
(5) Linear motor (linear motor) has a large acceleration, up to 10g;
(6) The linear motor moves smoothly because there is no other mechanical connection or conversion device other than the supporting linear guide or air bearing;
(7) Linear motor accuracy and repeatability are high, because the intermediate link affecting the accuracy is eliminated, the accuracy of the system depends on the position detecting component, and the appropriate feedback device can reach the sub-micron level;
(8) The linear motor is easy to maintain, because there are few components and no mechanical contact during the movement, which greatly reduces the wear of the components, with little or no maintenance and a longer service life. Linear motor and "rotary motor, ball screw" transmission performance comparison table performance rotary motor + ball screw linear motor.
Linear motors are of high quality and are widely used in wind power generation, solar energy equipment, new energy equipment, high-speed rail equipment, electronic equipment, medical equipment, CNC machine tools, woodworking machinery, handling, conveying machinery, precision measuring instruments, industrial automation industrial machinery, electronic semiconductor equipment. , robots, robotic arms, injection molding machinery, packaging machinery, etc., all areas that require precision transmission control and positioning.
