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Four-connecting-rod elastic switching mechanism

A switching mechanism and four-link technology, which is applied in mechanical equipment, belts/chains/gears, transmissions, etc., can solve the problems of large space occupied by the switching mechanism, complex limit locking mechanism, and slow switching speed. High space utilization, compact structure, and the effect of reducing mechanical impact

Active Publication Date: 2015-05-20
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a four-link elastic switching mechanism to solve the technical problems of the prior art that the switching mechanism occupies a large space, the limit locking mechanism is complicated, the transmission efficiency is low, and the switching speed is slow.

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Embodiment Construction

[0015] The present invention will be further elaborated below in conjunction with the accompanying drawings.

[0016] See attached figure 1 And attached figure 2 , a four-link elastic switching mechanism of the present invention includes a crank 1, a crank limiter B 1 1001. Crank limit B 2 1002, connecting rod 2, rocker 3, frame 4, rocker limit A 1 3001, rocker limit A 2 3002, elastic hinge pin 5 and drive motor 6;

[0017] One end of the crank 1 is hingedly connected to the frame 4, the other end of the crank 1 is hinged to one end of the connecting rod 2, the other end of the connecting rod 2 is connected to one end of the rocker 3 through an elastic hinge pin, and the other end of the rocker 3 It is hingedly connected with the frame 4, the driving motor 6 is fixed on the frame 4, and the output shaft of the driving motor 6 is tightly connected with the crank 1; the rocker limit A 1 3001, rocker limit A 2 3002, crank limit B 1 1001 and crank limit B 2 1002 is fixed...

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Abstract

The invention relates to a four-connecting-rod elastic switching mechanism, and belongs to the technical field of optical-mechanical structures. The technical problems that in the prior art, the transmission efficiency is low and the switching speed is low are solved. The four-connecting-rod elastic switching mechanism comprises a crank, a connecting rod, a rocking rod, a rack and an elastic hinge pin. The crank is hinged to the connecting rod. The connecting rod is connected to the rocking rod through the elastic hinge pin. The rocking rod is hinged to the rack. The rack is hinged to the crank. An object to be switched is precisely positioned and safely locked through precise limiting of the rocking rod, micro-overshoot of the crank and the elastic hinge pin, the four-connecting-rod elastic switching mechanism has the advantages that the structure is simple, the principle is reliable and the mechanical shock is small, the four-connecting-rod elastic switching mechanism is compact in structure, and the structural space utilization rate is high through the reasonable layout and ingenious integration of the object to be switched and the four-connecting-rod elastic switching mechanism.

Description

technical field [0001] The invention belongs to the technical field of optical-mechanical structures, and in particular relates to a four-link elastic switching mechanism. Background technique [0002] Lens group switching is one of the main implementation methods of optical zoom. In order to ensure the imaging quality and work efficiency of the optical system, optical zoom has certain requirements for the position accuracy, self-locking ability and responsiveness of the lens group switching mechanism. Although both the horizontal push method and the rotation method can realize the switching of mirror groups, the horizontal push method has disadvantages such as large structural space and complicated limit locking mechanism. The rotation method is currently the main technical way to realize mirror group switching. Locking function, the rotation method needs to be used together with the worm gear drive to realize the position self-locking. By improving the machining accuracy o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H21/18
CPCF16H21/18
Inventor 李海星丁亚林
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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