Manufacturer is passed use new material technology, improve management of quantity of heat, reduce production to cost will enlarge application and attract more user.
Say from the technology, direct drive is linear (Direct-Drive Linear, DDL
) the road that transmission system already was on a success. DDL transmission system does not need guide screw of gear-box, ball, leather belt, clutch and electromotor and load between other rotate - —— of linear motion converter and be based on rotate the systematic photograph of electromotor is compared, can offer precision of fixed position of the speed with superior performance, acceleration, bear and quick stroke.
Nevertheless, all these caused high cost and tall complexity. The manufacturer had indefatigable effort to solve these problems, brought a new life to DDL transmission system. But current economy is dejected, and the client does not wish from what what obtain to already having a design short-term in satisfying, go, to the new technology move that has long-term benefit latent capacity, to research the job brought more difficulty.
A way that the manufacturer gives DDL drive product rise in value is volume of unit of an electromotor, bearing, feedback make whole set of equipment and offer the control that matchs.
The market observes direct drive system is in at present all linear holds less share in transmission application (6%~10% ) —— but its market is rising. From company of Motion Tech Trends (MTT) report “2002 comes North America is direct 2007 ” of plaza of drive linear motor can understand just a little. MTT reckons plaza of motor of North America DDL was 108 million dollar 2002, among them nearly 78% use at factory automation (include semiconductor equipment and machine tool) , nearly 20% use at instrument system (include medical treatment facility) , 2.6% use at other side.
The president George Gulalo of MTT predicts a few years the market increase rate of DDL equipment will achieve 15%~20% henceforth, reached 242 million dollar 2007. According to forecasting, of all kinds application is occupied scale and almost identical 2002. About 35% what the United States takes market of global DDL transmission.
November 2002, frost&The ” of plaza of linear motor of report “ Europe of Sullivan company provided European number. The report forecasts this market to be in before long meeting health grows continuously in the future. The report predicts from 2001 to 2008 market size will break up one time to arrive from 57 million dollar 125 million dollar, sales volume will grow nearly 3 times to go to 125500 from 33300. F&S points out “ bigger the reason that outspread client base ” is application of solution of exciting and linear electromotor, sales volume and income growth.
Technology of drive of linear of “ direct drive is lying to mature gradually level ” . Electric drive of Bosch Rexroth company and Scott Hibbard of control technology vice president say, DDL technology no longer a few forward position application such as treatment of high speed of be confined to and semiconductor production. Be based on higher yield and improvement electromotor design, the more extensive knowledge base that application had had related DDL technology and the economy that get ameliorative.
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