Switch magnetoresistive electric machinery transforms planer electrical system

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  • source:LAURENDA CNC Machining
The BJ2020A double housing planer of my company is 20 centuries 70 years factory of heavy-duty machine tool produces Wuhan, advocate procrastinate move a part to be 60KW dc aircrew (abbreviation F-D system) , orgnaization of existence of dc set system is giant, maintenance workload is big, cost can be high, noise is big wait for a problem, because use old, electrical system whole already was in serious ageing condition, dc machine wears away serious, breakdown is relatively multifarious, and masty. To solve this problem, its are electric partial whole is transformed already was no time to delay. System of timing of switch magnetoresistive electric machinery (abbreviation SRD system) it is system of a kind of new-style stepless communication timing, it holds the good point that falls dc timing system concurrently, structure of ① electric machinery is simple and strong, maintenance-free, timing is convenient, function is reliable, can remove apply the brake, positive and negative often to turn, electric machinery is not afraid of heat. 150% what ② electric machinery starts torsion to be rated torsion, and 30% what starting electric current is rated electric current only. 1% what sky of ③ electric machinery carries electric current to be rated electric current only. ④ electric machinery is peculiar cut off the power function of apply the brake, avoid bed face to develop a workbench. A lot of advantage makes its show itself in a variety of timing plan, inverting often in such as double housing planer the application on the machine that has apply the brake, the effect is highlighted particularly. October 2005, national hair changes appoint, total bureau of environmental protection of ministry of science and technology, country releases energy-saving and directive document jointly, already had system of timing of switch magnetoresistive electromotor popularizing as energy-saving product, had gotten admissive in the market, its are energy-saving fall a confusion of voices, raise the advantage such as dependability to had gotten broad the praise that transforms an user and affirmation. System of electric machinery of magnetoresistive of switch of system of electromotor of switch magnetoresistive timing is unifinication of a kind of Electromechanical energy-saving model system of timing electric machinery. The principle of switch magnetoresistive electric machinery is abided by " the principle with the smallest magnetoresistive " magnetic flux always is along magnetoresistive the smallest way closes, magnetic field is consequently screwy and the electromagnetism torsion that produces magnetoresistive quality, system of switch magnetoresistive electric machinery is by switch magnetoresistive electromotor, power transformation implement reach controller composition. The dc that is the same as a tradition and system of timing of alternating current machine are compared, have the following advantage: Electric machinery structure simple, solid, production cost is low; Efficiency is tall, fall in rated output condition not only, and also can keep efficient inside broad timing range move; Average system efficiency amounts to 80% above; The torsion that start the big, electric current that start is small; Performance of apply the brake is good, can realize regenerative braking, effect of managing electric energy is distinct; Performance of systematic adjusting control is good, can realize 4 quadrant to control quick control; Safeguard convenient, have without brush a structure, agree with in tall dust, high speed, combustible explode easily etc move below harsh environment; Can apply in all trades and professions. 1. Advocate procrastinate use a part (the SRD controller) of new-style electromotor and its form a complete set; Use SRD system to transform electrical system of double housing planer, old summary comes down, its are energy-saving aircrew of more original direct current wants the result apparent a lot of, make an appointment with energy-saving 60% ～ 80% , noise drops 10 more than decibel, for 81 ～ 83 decibel are controlled when common treatment, bulk reduces 2/3, and electric machinery maintenance-free, not calorific, transform double housing planer with SRD system advocate procrastinate use systematic application the result is favorable, function is reliable, be a model " green is transformed " sample. 2. Electric ark transforms former electric cabinet serious already ageing, we change for with PLC (can make up Cheng controller) , the PLC that electric ark uses is products of 3 water chestnut company, FX1N series, lead plane is 60 a little bit, deserve to expand with transistor at the same time module in order to improve service life, to control the new-style and electric ark of core, the auxiliary relay that cancelled, PLC control is passed in moving process, reduce intermediate segment, make the system moves stabler, reliable, the movement is used to move to program and trace program are controlled at the same time and be protected on process designing, give out in time below the circumstance of spacing occurrence breakdown stop machine and alarm signal, electric ark achieves the outward appearance beautiful, control is convenient, the operation is handy, circuit simplifies, run stable and reliable characteristic. 3. Journey switch is transformed and pensile pushbutton station transforms journey switch instead to be close to switch of form a complete set without contact, have slowdown, inverting, offside jockeys and slow fast cut wait for a function, have very high interference rejection capacity at the same time, huge raises its utilization reliability, reduced the workload that maintenance safeguards. Pensile pushbutton station changes match new-style pushbutton station, increase to stop a function urgently. Have a pace to enter, the pace is retreated, automatic advancement, regressive, jockey, stop urgently, tool carrier moves quickly, crossbeam rises demote function, exterior is beautiful, wear well. After transforming, energy-saving with environmental protection effect apparent, moving stability, altogether, undertake energy-saving be being transformed with environmental protection is class of hoist of state-owned old company, dig old equipment latent capacity, beautiful money is scarce a shortcut with fast effect, to improving the economic benefits of the enterprise and social beneficial result, managing to building circular economy model the society is well worth doing, it is the only way that mends technical reformation of state-owned old company. CNC Milling