Load cell and large load measuring method capable of carrying out calibration in multiple angles for air craft

A force sensor and load technology, applied in the field of force sensor, can solve problems such as difficult to meet the requirements of engineering practice, and achieve the effect of enhanced structural strength and improved bearing capacity

Inactive Publication Date: 2013-12-18
COMAC +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the existing joint load cell is difficu

Method used

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  • Load cell and large load measuring method capable of carrying out calibration in multiple angles for air craft
  • Load cell and large load measuring method capable of carrying out calibration in multiple angles for air craft
  • Load cell and large load measuring method capable of carrying out calibration in multiple angles for air craft

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Embodiment Construction

[0035] As required, specific embodiments of the invention will be disclosed herein. However, it should be understood that the embodiments disclosed herein are merely typical examples of the invention, which can be embodied in various forms. Therefore, specific details disclosed herein are not to be considered limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the invention in any appropriate way in practice, This includes taking various features disclosed herein and combining features that may not be expressly disclosed herein.

[0036] Refer below Figure 1 to Figure 3 A load cell 100 according to a preferred embodiment of the present invention is introduced.

[0037] Such as figure 1 As shown, the load cell 100 according to the preferred embodiment of the present invention is suitable for mounting as a connection pin on a connection joint of an aircraft structure. The load cell 100 includes...

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Abstract

The invention provides a load cell which is suitable for being mounted on a connector of an air craft structure. The load cell comprises a cylindrical pin body, a pin seat, a first strainmeter, a second strainmeter, a first strainmeter connecting line and a second strainmeter connecting line, wherein an axial straight groove (a first groove) and an annular groove (a second groove) perpendicular to the straight groove are formed in the body wall of the cylindrical pin body, a line leading hole communicated with the straight groove is formed in the pin seat, the first strainmeter is located at the intersection position of the first groove and the second groove, the second strainmeter is located in the second groove and forms a 90 degree central angle with the first strainmeter, the first strainmeter line and the second strainmeter line are electrically connected with an external sensing signal collecting instrument, and the length direction of the first strainmeter and the length direction of the second strainmeter are identical with the axial direction of the pin body. The invention further provides a large load measuring method capable of carrying out calibration in multiple angles for an air craft. Through the data sensed by the load cell, the size and the direction of the load borne by the air craft structure can be determined, and the load cell can be used for sensing large loads.

Description

technical field [0001] The invention relates to the field of force sensors, in particular to a large-load calibrated multi-angle force sensor for aircraft and a large-load calibrated multi-angle force measurement method for aircraft. Background technique [0002] The connection joint of the mechanical structure is a relatively critical part of the structure, which is mainly used for the connection of the structure and the load transfer between the structures. Therefore, the ability to accurately measure the magnitude and direction of the load transmitted by the joint plays an important role in correctly analyzing the force of the structure. At present, there are many types of joint load cells, but generally they can only measure loads at one or several specific angles. However, in engineering practice, the magnitude and direction of the load on the joint cannot be determined, especially when the structure is static, the magnitude and direction of the force on the joint vary...

Claims

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Application Information

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IPC IPC(8): G01L5/00
CPCG01L5/1627
Inventor 周良道李凯李强章仕彪张鹏飞徐春雨冒颖李卫平
Owner COMAC
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