Derrick full-automatic defend wind system
1 BeiJing Railroad bureau second class to defend wind system Simple description 2 Full-automatic defend wind system to move system brief and introduce 3 Main characteristics 4 Defend wind product 5 App with the Reformation 6 Derrick safe and Protection electronics product
BeiJing Railroad bureau second class to defend wind system Simple description
The railroad department conveyance bureau conveyance unload packs (1993)No.74 document:
In "Concerning the notice that carries through the performance door a type derrick to defend a safe technique of wind to request"
“....Should adopt two classes systems to move a type system to move device in the high-speed stalk top of the active round, defend wind system to move urgently with work system to move and can distinguish is moved a machine by two systems to complete.......(namely;second class defend wind system to move a project)See right
In June 1992 from Peking railroad bureau,too original heavy machine college,the railroad department treasure chicken bridge factory,constitute to develop a set,carry on a technique improvement to JTM20 door type derrick.In authenticate the document:“....7,in this machine ad hocly defend the control system that the wind system moves a machine, is develop by the original consociation to constitute a member afterwards develop to succeed of defend the wind controller to replace at first design of postpone the control system.its main advantage BE:(1)raise the control component of credibility;(2)no longer destroy by fire to make to move the electromagnet coil, avoid from here result in of the homework grind to a stop, lowering to circulate cost;(3)make to move above 99% of the economy energy rate for electromagnet to absorb hold, is only lower by this each set derrick to pack the machine capacity 5.5 KWs;(4)make the railroad department standard in request of urgently defend the wind system to become having no impact and didn't wear away to go a design.This controller has already obtained national patent.”（Note:Thisdefend the wind controller's designer: Mr Yapeng Dong as a colligation team leader in the develop group）