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Integrated torque limiter/no-back device

A technology of torque limiter, reverse device, applied in the direction of transmission, brake type, mechanical brake, etc.

Active Publication Date: 2013-12-04
HAMILTON SUNDSTRAND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some actuator systems must also perform a force limiting function to prevent damage should the system become stuck

Method used

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  • Integrated torque limiter/no-back device
  • Integrated torque limiter/no-back device
  • Integrated torque limiter/no-back device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] figure 1 A typical slat actuation system 10 on an aircraft 11 is shown. The system is positioned on the left wing 12a and the right wing 12b of the aircraft 11 and includes a position indicating device 14, a power drive unit 16, a slat panel 18, a slat actuator 20, a slat panel linkage 22 and a torque shaft 30. Each slat panel 18 is connected to the wing 12a or 12b by two slat panel linkages 22 , wherein each linkage is connected to the slat actuation system 10 through a slat actuator 20 . Power drive unit 16 is connected to each slat actuator 20 by a torque shafting 30 .

[0013] Prior to flight or upon landing, power drive unit 16 powers slat actuator 20 to extend slat panel 18 away from wings 12a and 12b and into the airflow. The slat panel linkage 22 is used to extend the slat panel 18 and the position indicating device 14 works with the power drive unit 16 to hold the slat panel 18 in position. Once in flight, the power drive unit 16 powers the slat actuator 20...

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PUM

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Abstract

An integrated torque limiter / no-back device for use in an actuator with an input shaft, an output and gear reduction. The device includes an input ramp to receive torque from the input shaft; a combined ramp to transfer torque; an output ramp to transfer torque to the gear reduction; one or more balls between the input ramp and the combined ramp and between the combined ramp and the output ramp to transfer torque; and a brake for causing torque to be grounded and for preventing backdriving of the input shaft by preventing movement of one or more of the input ramp, the combined ramp and the output ramp when a torque threshold has been met. The input ramp and the output ramp are a no-back ramp and a torque limiter ramp, respectively, and the device also includes a pin between the combined ramp and one or more of the no-back ramp and the gear reduction for transferring torque.

Description

technical field [0001] The subject matter disclosed herein relates to actuators in fixed wing aircraft. More specifically, the subject matter disclosed herein relates to integrated torque limiters in actuators for such aircraft. Background technique [0002] The term "actuator" refers to a member of a mechanism whose primary function is to provide a controllable force for moving an actuated element to a desired position. An actuator system typically includes an actuator, an actuating element, a connecting linkage, and a power source. Some actuator systems must also perform a force limiting function to prevent damage should the system become stuck. Sometimes this is done with a torque limiting device on the input shaft of the actuator. [0003] An aircraft actuation system is an example of a system that may use a torque limiter as a force limiter for an actuator. In aircraft actuation systems, high-lift actuators can be used to lift and hold flight surfaces in particular ...

Claims

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Application Information

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IPC IPC(8): B64C13/50
CPCB64D2045/001Y02T50/44B64C9/16F16H35/10B64C9/22B64C13/24F16D7/005F16D43/215F16D43/218F16D55/02F16D55/16F16D55/48F16D67/02F16D2125/38Y02T50/40
Inventor A.M.芬尼
Owner HAMILTON SUNDSTRAND CORP
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