A small and high load integrated servo actuator
A servo-execution, high-load technology, applied in the field of electromechanical servo, can solve the problems of poor product processing, difficult high-precision, high dynamics, and greater influence of transmission gaps, etc., to achieve simple structure, reduce intermediate transmission links, and improve system performance. The effect of transmission accuracy
Active Publication Date: 2022-01-25
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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Problems solved by technology
In order to achieve linear motion output, the ball or roller screw pair needs to design a special anti-rotation mechanism, resulting in complex structure, high processing accuracy requirements, and poor product processing technology
In addition, the servo motor rotor and lead screw in traditional servo actuators are mostly split designs, and the two are connected by keys or couplings. Due to the large number of transmission links, the transmission clearance is greatly affected, and it is difficult to achieve high precision. , high dynamic target requirements
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[0026] In order to make those skilled in the art better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to specific embodiments. Please note that the embodiments described below are exemplary only for explaining the present invention and should not be construed as limiting the present invention. If no specific technique or condition is indicated in the examples, the technique or condition described in the literature in the field or the product specification is used.
[0027] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for description purposes, and cannot be interpreted as indicating or implying relative importance or the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present inventio...
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The present invention provides a small high-load integrated servo actuator, which includes a driving part and a screw rod. The driving part includes a stator assembly, a rotor assembly, a deep groove ball bearing, a thrust bearing and an end cover assembly; the rotor assembly and the The screw rod is fixedly connected, the screw rod includes a threaded end and a polished rod end, steps are respectively arranged on both sides of the polished rod end; the deep groove ball bearing is arranged at the step, and the deep groove ball bearing connects the The screw rod is rotatably supported on the stator assembly and the end cover assembly; the thrust bearing is sleeved on the deep groove ball bearing. The small-sized high-load integrated servo actuator provided by the present invention has a relatively large axial load-bearing capacity and high transmission precision of the system, which saves the special anti-rotation structure, makes the structure more compact, occupies less space, and reduces the processing difficulty at the same time. production efficiency.
Description
technical field [0001] The invention belongs to the technical field of electromechanical servos, and in particular relates to a small and high-load-bearing integrated servo actuator. Background technique [0002] In the aerospace field, high-load, miniaturization, and compactness of servo actuators are the trend of technological development. A more compact servo actuator can greatly save space, reduce the weight of the entire system, and improve the power-to-mass ratio of the system. Traditional servo actuators mostly adopt the transmission mode of permanent magnet synchronous motor combined with ball or roller screw pair. In order to realize the linear motion output, the ball or roller screw pair needs to design a special anti-rotation mechanism, which leads to complex structure, high processing precision requirements and poor product processing technology. In addition, the servo motor rotor and lead screw in traditional servo actuators are mostly of split design, and the ...
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IPC IPC(8): H02K7/06H02K5/173
CPCH02K7/06H02K5/1737
Inventor 王贺龙姜玉峰刘春庆樊茜陈鹏郑起佳
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS