Dual-optical wedge optical scanning execution mechanism driven by single motor
A technology driven by a single motor and optical scanning, applied in optics, optical components, instruments, etc., can solve the problems of large imaging trajectory error, complex assembly process, and large volume, and achieve small fluctuations in speed ratio, small speed ratio error, and high effect
Active Publication Date: 2017-05-10
SHANGHAI AEROSPACE CONTROL TECH INST
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, to provide a single-motor-driven double-wedge optical scanning actuator, to overcome the large volume, high energy consumption, complex assembly process, and large imaging trajectory error of the traditional scanning mechanism and other shortcomings, the single motor drives the double optical wedge to rotate at a fixed speed ratio through the gear transmission group
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[0029] Such as figure 1 , figure 2 , image 3 , Figure 4 As shown, a double optical wedge optical scanning actuator driven by a single motor includes: a gear transmission group 1, an upper bearing assembly 2, a lower bearing assembly 3, an end cover 5, a motor 4, a C-shaped washer 18, Upper optical wedge high-speed bearing 13, lower optical wedge high-speed bearing 15, upper optical wedge 14, lower optical wedge 16;
[0030] Such as figure 1 and image 3 As shown, the gear transmission group 1 includes a motor output gear 7 , a transmission gear 11 , an upper wedge bearing drive gear 8 , a lower wedge bearing drive gear 17 , a gear shaft 9 and a gear shaft input gear 10 . Gear shaft 9 is the elongated shaft that a middle part is processed with gear, and its one end is to be set as D type. The motor output gear 7 meshes with the transmission gear 11, and the transmission gear 11 meshes with the upper optical wedge bearing drive gear 8 and the gear shaft input gear 10; t...
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The present invention provides a dual- optical wedge optical scanning execution mechanism driven by a single motor. The mechanism comprises an upper bearing assembly, a lower bearing assembly, a tail end cap, a gear transmission group, a C-type gasket, a motor with an encoder, an upper optical wedge high-speed bearing, a lower optical wedge high-speed bearing, an upper optical wedge and a lower optical wedge. The C-type gasket allows two high-speed bearings to keep a fixed distance; the inner rings of the bearings are equipped with the optical wedges; the motor drives the inner rings of the bearings in the upper bearing assembly and the lower bearing assembly to perform high-speed rotation through the gear transmission group so as to drive the inner rings and the optical wedges to rotate according to the gear ratio; and the gear system can convert one-way motor output to the two ways of output in two opposite rotation directions according to the fixed rotation ratio. The size is small, the weight is light, the optical wedge coaxiality is high, the mechanical strength is high, and the dual-wedge rotation ratio error is small, and the dual-wedge optical scanning execution mechanism driven by the single motor can be used for a laser scanning imaging system.
Description
technical field [0001] The invention relates to a micro actuator capable of optical scanning and imaging, in particular to a single-machine-driven double optical wedge optical scanning actuator, which belongs to the technical field of micro opto-mechanical-electrical systems. Background technique [0002] In photoelectric scanning equipment, the optical scanning mechanism is a kind of optical distance detection sensor that uses monochromatic, monochromatic, coherent and high-brightness laser, infrared and other optical distance detection sensors to realize the search within a certain field of view through the scanning device. and target analysis. The traditional scanning device is composed of a scanning mirror, a double-frame or multi-frame rotating mechanism, and each frame in the double-frame or multi-frame mechanism has an independent drive motor and an angle feedback sensor, which are respectively driven by the motor. Realize the pitching and deflection actions of the l...
Claims
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Login to View More IPC IPC(8): G02B26/08G02B26/10
CPCG02B26/0891G02B26/10
Inventor 许敬陈宗镁刘积昊高丹马天义
Owner SHANGHAI AEROSPACE CONTROL TECH INST