Title:
工作機械用モータ主軸
Document Type and Number:
Japanese Patent JP3512801
Kind Code:
B2
Abstract:
PCT No. PCT/EP94/00843 Sec. 371 Date Oct. 3, 1995 Sec. 102(e) Date Oct. 3, 1995 PCT Filed Mar. 17, 1994 PCT Pub. No. WO94/23485 PCT Pub. Date Oct. 13, 1994Motor spindle cooled by coolant for a machine tool comprising a workpiece spindle and a drive motor having a rotor surrounding the workpiece spindle, concentric with the workpiece spindle and connected to the workpiece spindle, and a stator surrounding the rotor and concentric with the rotor, and comprising a spindle housing accommodating the drive motor and coolant channels surrounding the stator, at least one inner coolant channel enclosing the stator at least to a major extent and at least one outer coolant channel similarly enclosing the stator at least to a major extent being provided-in section through the three-phase motor perpendicularly to the spindle axis-for decoupling the spindle housing thermally from the drive motor, the outer coolant channel lying-in relation to the spindle axis-outside the inner coolant channel in the radial direction, and a coolant inlet being connected to a first end of the outer coolant channel, the second end of the outer coolant channel to a first end of the inner coolant channel, and the second end of the inner coolant channel to a coolant outlet.
Inventors:
グロッスマン，バルター
リンク，ヘルムート フリードリッヒ
リンク，ヘルムート フリードリッヒ
Application Number:
JP52161194A
Publication Date:
March 31, 2004
Filing Date:
March 17, 1994
Export Citation:
Assignee:
インデックス−ベルケ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディト ゲゼルシャフト ハーン ウント テスキ
International Classes:
H02K1/32; B23Q1/70; B23Q11/12; H02K1/20; H02K5/20; H02K9/04; H02K9/10; H02K9/19; (IPC1-7): H02K9/10; H02K1/32; H02K9/19
Attorney, Agent or Firm:
石田 敬 （外３名）