Unlock instant, AI-driven research and patent intelligence for your innovation.

Device for measuring the torque transmitted by a power shaft

A power shaft and torque measurement technology, which is applied to measuring devices, power measurement, torque measurement, etc., can solve problems such as large volume and complicated operation

Inactive Publication Date: 2011-04-27
TURBOMECA SA
View PDF1 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the measuring device of FR 2 595 821 is complex to operate and bulky due to the multiple magnetic sensors

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device for measuring the torque transmitted by a power shaft
  • Device for measuring the torque transmitted by a power shaft
  • Device for measuring the torque transmitted by a power shaft

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058] The torque measuring device of the present invention, also known as a torque meter or torque indicator, can be used in a variety of situations where knowledge of the torque transmitted by a shaft is required. The measuring device is described in detail below, but the examples are not limited to helicopter turbine engines, such as figure 1 Gas turbine engine 9 is shown.

[0059] Such as figure 1 As shown, the torque measuring device 10 of the present invention is part of a shaft in general form, the ends of which are coupled to other shafts or gears of a turbine engine.

[0060] In other words, the torque measuring device 10 comprises a hollow power shaft 12 intended to transmit rotational torque about its axis A. As shown in FIG. This torque is the torque that needs to be measured.

[0061] exist figure 1 In the example shown, the power shaft 12 carries a gear 14 at its first end 12a and a transmission member 16 at a second end 12b opposite the first end. Obviously...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a torque measuring device comprising: a power shaft (12) intended to transmit a torque about the axis (A) of the power shaft; a first wheel (18) bearing angular reference marks, said wheel being fastened to the power shaft; a reference shaft (20) provided with a second wheel bearing angular reference marks; a sensor (26) placed so as to face at least one of said wheels inorder to determine the torque transmitted by the power shaft. The invention is characterized in that: the first wheel (18) has first and second series of angular reference marks; and the second wheel(22) has third and fourth series of angular reference marks, the reference marks of the first and third series being mutually parallel, whereas the reference marks of the second and fourth series aremutually parallel while being inclined to a first axial plane containing the axis (A), the reference marks of the first series being inclined to the reference marks of the second series, whereby the signal delivered by said sensor (26) is also representative of the temperature of the power shaft (12).

Description

technical field [0001] The invention relates to torque measurement devices transmitted by engine shafts, such as shafts of aircraft turbine engines. Background technique [0002] One should know that shaft rotational torque measurement is particularly important in the field of helicopter engines, since torque is usually one of the parameters that pilots must consider when flying a helicopter. Once the helicopter rotor provides a constant speed, the power of the helicopter depends only on the torque. [0003] To measure this torque, various solutions have been conceived. Some of these solutions are based on measuring the deformation of the shaft as it is twisted, specifically as a function of the transmitted torque. [0004] The device proposed by the invention is based on measuring the deformation of the shaft when it is twisted. [0005] More specifically, the present invention provides a torque measuring device comprising: [0006] The power shaft is used to transmit t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01L3/10
CPCG01L3/101G01L3/109
Inventor 扬妮克·卡佐杰拉尔德·森杰
Owner TURBOMECA SA