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外文資料翻譯譯文
（作者未知） 2010/4/14
（接上頁）are all maintained by the CV 2000 LS valve, which has two compensators per spool section — one for each cylinder port.
Hydraulic settings are made via the EasyProg electrical remote control unit. Feed force is remotely controlled by the CV 2000 LS pressure compensator through a pilot-operated, electrically controlled proportional relief valve. This enables a continuous setting of the feed force while maintaining the possibility of a second pressure limiter working as an overpressure cutoff valve. The design enables two pressure limiters for one cylinder port and extremely fine, stable pressure control.
The valve’s compensators exhibit flat flow/pressure curves and provide a constant flow, regardless of load pressure. The frequency and rotation of the drill bit is
harmonized with the precise pressure setting for the feed force. The PL-2000 pressure limiter’s distinct pressure cut-off point ensures that the correct flow is maintained throughout the entire pressure range.
The EasyProg drill rig version software has automatic setting functions to help the operator reduce initial setup time. It also contains maintenance and service frequency options that can be accessed remotely by OEMs through a GSM unit that can be connected to any mobile phone. Additional functions and portable remote control units can be integrated either by wire or by Bluetooth, which, in the new version, has a range of 100 m.
Recently, we have talked about rock drilling , the general mining machinery. Of course, there is just a simple talk. So that we have to understand. Next, I introduce a further, the mining machinery in the other a mechanical - jaw crusher.
The BR550JG-1 jaw crusher — from Komatsu America International Co. — includes fully hydraulic tracked travel and crushing systems. Powered by Komatsu’s 306-hp SAA6DI25E-2 engine, this crusher has a material-output range from 110 to 507 tons per hour, with adjustable open-side discharge settings from 2.（未完，下一頁）
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