非対称ねじ溝形状を有するボールねじの開発
書誌事項
- タイトル別名
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- Development of Ball Screw having Asymmetric Thread Groove Form
- (1st Report, Experimental Production of Ball Screw and Evaluation of Axial Rigidity)
- （第1報，ボールねじの試作とアキシアル剛性の評価）
抄録
<p>Recent ball screw is applied for power transmission such as an injection press machine. A ball screw is inept to power transmission due to strengthening the contact surface pressure between the ball and the thread groove. However, an instantaneous large load is required in mold clamping. Therefore, ball screw mechanism is applied owing to its high responsibility. Though a manufacturer of ball screw takes measures for upgrading the axial load capacity and rigidity, the form of thread groove remains in symmetry. Restricting the intended purpose to injection molding machine, a large force should be loaded to the mold clamping direction, but any axial force is not required in return. There is an angular ball bearing or a buttress thread as mechanical components with which a large unidirectional force can be applied. Thus, the authors considered that a large unidirectional (axial) force can be loaded with forming the thread groove asymmetric like the angular ball bearing. In this research, an experimental product was made using 3D metal printer. Then, it was confirmed that a ball screw having asymmetric thread groove was imaginable in mechanism and the axial rigidity became higher by increasing the contact angle. According to the results, the authors verified the improvement of axial rigidity by processing the thread groove of existing ball screw to asymmetric form.</p>
収録刊行物
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- 設計工学
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設計工学 54 (5), 299-308, 2019
公益社団法人 日本設計工学会
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詳細情報 詳細情報について
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- CRID
- 1390845713065648384
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- NII論文ID
- 130007642592
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- ISSN
- 21889023
- 09192948
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可