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Aeroengine ratchet impact intensity testing device

A technology of aero-engine and impact strength, which is applied in the direction of impact test, measuring device, machine/structural component test, etc. It can solve the problems of inability to carry out special-shaped pawl loading test, etc., and achieve the effect of simple structure, wide application and low cost

Inactive Publication Date: 2016-12-07
AECC SHENYANG ENGINE RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a pawl impact strength test device for aero-engines, which is used to solve the current problem that the loading test of special-shaped pawls cannot be carried out

Method used

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  • Aeroengine ratchet impact intensity testing device
  • Aeroengine ratchet impact intensity testing device
  • Aeroengine ratchet impact intensity testing device

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Embodiment Construction

[0018] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. Embodiments of the present invention will be described in detail b...

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Abstract

The invention relates to an aeroengine ratchet impact intensity testing device, which comprises an impact testing machine, an impact hammer, a ratchet fixing holder, a connecting pin and an acceleration sensor. The impact testing machine is provided with a base and a hammer head holder. The impact hammer is fixed to the hammer head holder. The ratchet is fixed on the ratchet fixing holder through the connecting pin and the ratchet fixing holder is fixed to the base. The acceleration sensor is used to monitor the speed variation during an impact process. The aeroengine ratchet impact intensity testing device of the invention can complete the test on the impact intensity of an engine ratchet, and can accurately measure the impact intensity and a breaking process. When some connecting parts of the device are replaced, it can be applied to the tests on the impact intensity of various eccentric loadings. The device is also advantageous in that its structure is simple, its manufacturing cost is low and its application is wide.

Description

technical field [0001] The invention belongs to the field of aero-engine and gas turbine tests, in particular to an aero-engine pawl impact strength test device. Background technique [0002] Aeroengines and gas turbines are started by the motor shaft and the ratchet acting on the pawl, and when a certain speed is reached, the pawl is disengaged. In normal operation, the three pawls are stressed and disengaged at the same time. It is sufficient to calculate its strength reserve, but due to production, assembly and other factors, there will be a situation where one or both pawls are stressed, and at this time Insufficient strength reserves may be insufficient, especially the insufficient impact strength against high rotational speeds may be the main cause of accidents. Currently, the structure only has an index of impact toughness for its raw materials, and there is no effective means of measuring the impact strength of the entire component. [0003] The characteristics of ...

Claims

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Application Information

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IPC IPC(8): G01M7/08
Inventor 刘芳周轶群迟庆新林中楠梁振兴
Owner AECC SHENYANG ENGINE RES INST
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