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A device for testing the axial performance of a rod end elastic bearing

A technology of elastic bearings and test devices, applied in the direction of mechanical bearing testing, etc., can solve the problems that have not yet been achieved, and achieve the effect of high precision and work efficiency

Active Publication Date: 2019-02-26
CHINA HELICOPTER RES & DEV INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no such test device for rod end elastic bearings in China.

Method used

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  • A device for testing the axial performance of a rod end elastic bearing
  • A device for testing the axial performance of a rod end elastic bearing

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Embodiment Construction

[0010] Refer below figure 1 , figure 2 This patent is described in further detail. A rod-end elastic bearing axial performance test device, which is composed of left and right sliding bearings 1a, 1b, left and right sliding shafts 2a, 2b, connecting rod 3, and fixed pressure plate 4. The left and right sliding bearings 1a , 1b is a sliding guide sleeve with a sliding guide hole in the middle, the left and right sliding shafts 2a, 2b are smooth circular shaft structures, and there are connecting holes connected to the connecting rod 3 on it, and the fixed pressure plate 4 is an integral square groove Structure; when installing, first fix the left and right sliding bearings 1a and 1b on the bottom plate, the fixed pressure plate 4 is in the middle of the two sliding bearings, install the elastic bearing at the rod end on the fixed pressure plate 4, and slide the left and right The shafts 2a and 2b are installed on the left and right sliding bearings 1a and 1b, and the connect...

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Abstract

The invention belongs to the test technology of rod-end elastic bearing performance testing devices and relates to a performance testing device for a rod-end elastic bearing. The rod-end elastic bearing is an important bearing part of a helicopter rotor. Special rigidity testing devices need to be designed for testing performance indexes of the rod-end elastic bearing due to complex loading condition during operation of the rod-end elastic bearing which generates different acting forces through swinging and swaying. Load is applied to the rod-end elastic bearing when the rod-end elastic bearing is under the constant radial compression amount for obtaining the rigidity value. Currently, no rod-end elastic bearing testing device of the above kind exist in the prior art. The invention aims to provide the testing device capable of performing axial rigidity testing of the rod-end elastic bearing.

Description

technical field [0001] The invention belongs to the test technology of a rod end elastic bearing performance test device, and relates to a rod end elastic bearing product performance test device. Background technique [0002] The rod end elastic bearing is an important load-bearing part of the helicopter rotor structure. Due to various forces such as flapping and shimmy, it is necessary to design a special stiffness testing device to test various performance indicators of the rod end elastic bearing due to the complex load conditions during operation. The rod end elastic bearing is under constant radial compression, and the stiffness value is measured by applying a load to it. At present, there is no such test device for rod end elastic bearings in China. Contents of the invention [0003] A test device is provided, which can complete the axial stiffness test of the rod end elastic bearing. [0004] A rod-end elastic bearing axial performance test device, which is compos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/04
Inventor 孙云伟朱浩煜李艳艳
Owner CHINA HELICOPTER RES & DEV INST
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