线性电动致动器

• Format: Patent
• Language: Chinese
• Published: 12.04.2017
• Subjects: BEARINGS; BLASTING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; LIGHTING; MECHANICAL ENGINEERING; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; THERMAL INSULATION IN GENERAL; WEAPONS

[目的]提供了种线性电动致动器，借助于该线性电动致动器，以低的成本，防止了滚珠丝杠的工作锁死，并且实现了高的旋转性能。[技术方案]壳体(2)包括第壳体(2a)和第二壳体(2b)。电动马达被附接至第壳体(2a)。第壳体(2a)和第二壳体(2b)中形成有容纳孔以容纳丝杠。减速机构(6)包括固定至马达轴的输入齿轮(3)、与输入齿轮(3)啮合的中间齿轮(4)以及与中间齿轮(4)啮合并且作为单个单元固定至螺母(18)的输出齿轮(5)。中间齿轮(4)使用齿轮轴(22)经由壳型的滚针轴承(23)以可旋转的方式支承，所述齿轮轴相应地被植入到第壳体(2a)和第二壳体(2b)。环形垫圈(27，28)被安装在中间齿轮(4)的两侧。中间齿轮(4)的齿轮部分的宽度被设置为小于面宽度。 An object of the present invention is to provide an electric linear actuator having high rotational performance which can prevent the operation lock of the ball screw and can be manufactured at a low cost. According to the present invention, there is provided an electric linear actuator comprising a housing; an electric motor mounted on the housing; a speed reduction mechanism for transmitting the rotational power of the electric motor to a ball screw mechanism via a motor shaft with reducing a motor speed; and the ball screw mechanism for converting the rotational motion of the electric motor transmitted via the speed reduction mechanism to an axial linear motion of a driving shaf