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Title:
電子制御式ジャーナル負荷システム
Document Type and Number:
Japanese Patent JP5666434
Kind Code:
B2
Abstract:
An electronically controlled journal loading system 20 for controlling and adjusting the amplitude of the load applied to a journal assembly 19 of a pulverizing mill 10. The journal loading system 20 includes a servomotor 44, resolver 134, vertical gearbox 42, coil spring assembly 40, controller 46 and a user interface 48. The journal loading system 20 provides electronic control and adjustment of the force applied to the journal assembly 19 to thereby increase or decrease the load that a grinding roll 18 imposes on the material being pulverized. In the mode of operation of the servo journal loading system 20, a desired load set point is selected via the user/operator interface 48. The servomotor 44 rotates a preload stud (or servo screw) 50 within the coiled spring assembly 40 in the appropriate direction via the gearbox 42. As the preload stud 50 turns, a bronze nut 100 and bushing 94 move axially along the stud to compress or decompress the spring 86. Based upon the linear movement of the preload stud 50 and the precalculated spring force of the spring 86, the load applied to the journal assembly 19 is displayed on the operator interface 48. Once the journal loading level is achieved the servomotor 44 can be turned off since the spring assembly 40 maintains the selected loading to the journal assembly 19.

Inventors:
ワッズ デービッド シー
ネルソン ウォルター エー
Application Number:
JP2011513598A
Publication Date:
February 12, 2015
Filing Date:
June 08, 2009
Export Citation:
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Assignee:
アルストム テクノロジー リミテッドALSTOM Technology Ltd
International Classes:
B02C15/04
Attorney, Agent or Firm:
アインゼル Felix-Reinhardt
Takuya Kuno