WORM REDUCTION GEAR

• Main Author: MURATA RYOTA
• Format: Patent
• Language: English; Japanese
• Published: 25.04.2024
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

To provide a worm reduction gear capable of reducing noise to occur in an engagement part between a wheel tooth part and a worm tooth part.SOLUTION: The worm reduction gear includes: a worm wheel 2 having a wheel tooth part 9 on an outer peripheral face; and a worm 3 having a worm tooth part 12 on the outer peripheral face for engaging with the wheel tooth part 9. When a lead angle of the wheel tooth part 9 is α1 and a lead angle of the worm tooth part 12 is α2, a relation of α1<α2 is satisfied. When a pressure angle of the wheel tooth part 9 is β1 and a pressure angle of the worm tooth part 12 is β2, a relation of β1>β2 is satisfied.SELECTED DRAWING: Figure 3 【課題】ホイール歯部とウォーム歯部との噛合部で発生する騒音を低減することができるウォーム減速機を提供する。【解決手段】ウォーム減速機は、外周面にホイール歯部９を有するウォームホイール２と、外周面にホイール歯部９と噛合するウォーム歯部１２を有するウォーム３とを備える。ホイール歯部９の進み角をα１、ウォーム歯部１２の進み角をα２としたときに、α１＜α２の関係を満たす。ホイール歯部９の圧力角をβ１、ウォーム歯部１２の圧力角をβ２としたときに、β１＞β２の関係を満たす。【選択図】図３