X-shaped high-precision and high-expansion flexible displacement amplification mechanism

A displacement amplification mechanism and high-precision technology, which is applied to device components, piezoelectric devices/electrostrictive devices, etc., can solve problems such as failure to meet the requirements of rudder surface drive, material deformation, etc., and achieve compact structure and output displacement accuracy high effect

Inactive Publication Date: 2014-01-08
BEIHANG UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

Although smart materials have the advantages of high displacement precision and fast response speed, there is a key problem that the use of smart material actuators to drive the rudder surface

Method used

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  • X-shaped high-precision and high-expansion flexible displacement amplification mechanism
  • X-shaped high-precision and high-expansion flexible displacement amplification mechanism
  • X-shaped high-precision and high-expansion flexible displacement amplification mechanism

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Embodiment Construction

[0032] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0033] The present invention is an X-shaped high-precision and high-magnification flexible displacement amplification mechanism, such as figure 1 , figure 2 , image 3 As shown, it includes the outer X-shaped frame 1, the first actuator transfer push rod 2, the first smart material actuator 3, the output end flexible hinge 4, the fixed end flexible hinge 5, and the second smart material actuator 6 , the inner X-shaped frame 7, the second actuator transfer push rod 8, the flexible connection hinge 9 of the inner and outer frames, and the connector 10.

[0034] Outer X-shaped frame 1 as Figure 4 a. Figure 4 As shown in b, the upper end of the outer X-shaped frame 1 is open, connected to the right end of the flexible connecting hinge 9 of the inner and outer frames, the bottom ends of the outer X-shaped frame 1 are connected, and the bottom end is...

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Abstract

The invention discloses an X-shaped high-precision and high-expansion flexible displacement amplification mechanism which comprises an outer X-shaped frame, a first actuator adapting push rod, a first intelligent material actuator, an output end flexible hinge, a fixed end flexible hinge, a second intelligent material actuator, an inner X-shaped frame, a second actuator adapting push rod and an inner and outer frame flexible connecting hinge. The upper end of the outer X-shaped frame is connected with the right end of the inner and outer frame flexible connecting hinge, the bottom end of the outer X-shaped frame is connected with the second intelligent material actuator, and the other end of the second intelligent material actuator is connected with the left end of the inner and outer frame flexible connecting hinge through the second actuator adapting push rod. The bottom end of the outer X-shaped frame is further connected with the fixed end flexible hinge. The upper end of the inner X-shaped frame is connected with the left end of the inner and outer frame flexible connecting hinge, the bottom end of the inner X-shaped frame is connected with the first intelligent material actuator, the other end of the first intelligent material actuator is connected with the right end of the inner and outer frame flexible connecting hinge through the first actuator adapting push rod, and the bottom end of the inner X-shaped frame is further connected with the output end flexible hinge.

Description

technical field [0001] The invention relates to an X-shaped high-precision and high-multiple flexible displacement amplification mechanism, which belongs to the technical field of precision driving. Background technique [0002] At present, the rudder surface control of the aircraft mainly adopts the power-by-wire PBW method to realize the air rudder drive; the power-by-wire method mainly has the following three forms: 1), integrated electro-hydraulic actuator IAP (Integrated Actuation Package); 2), Electromechanical actuator EMA (Electro-mechanical Actuator); 3), electric hydrostatic actuator EHA (Electro Hydrostatic Actuator). These three systems all use a rotating motor to cooperate with a motion conversion device (such as a pump body, a screw, etc.) to convert the rotary output into a linear output. The composition of the hydraulic system is complicated, and the volume and weight are relatively large. The traditional steering gear operation has a complicated transmissio...

Claims

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Application Information

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IPC IPC(8): H01L41/09H01L41/02
Inventor 李琳薛铮陈亮良
Owner BEIHANG UNIV
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