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Experimental machine for evaluating impact-loading type tribological performance of joint bearing

A technology of joint bearings and bearings, which is applied in impact testing, mechanical bearing testing, testing of machine/structural components, etc., to improve experimental efficiency and reduce experimental costs

Inactive Publication Date: 2013-05-01
YANSHAN UNIV
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Problems solved by technology

At present, there is no relevant data at home and abroad on the tribological performance testing of joint bearings under impact loads.

Method used

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  • Experimental machine for evaluating impact-loading type tribological performance of joint bearing

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Embodiment Construction

[0014] The composition of this joint bearing impact loading tribological performance evaluation test machine proposed by the present invention includes a transmission device, a loading device, an experimental device, and a detection device, such as figure 1 shown.

[0015] The transmission device is composed of a servo motor 1, a first coupling 2, a torque meter 3 and a friction torque clutch 4. The servo motor 1 is connected to the torque meter 3 through the first coupling 2, and the torque meter 3 is connected to the experimental device through the friction torque clutch 4. The support shaft 6 in the device is connected.

[0016] The loading device is composed of a dowel 10, a second bearing 13, a load sensor 14, an impact weight 15, a stable load loading cylinder 16, an impact weight lifting cylinder 17, a linear guide rail 19, a hydraulic station 22 and a loading rod 25. The upper end surface of the impact weight 15 is fixedly connected with the impact weight lifting cyli...

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Abstract

The invention relates to an experimental machine for testing the tribological performance of a joint bearing under the action of an impact load. The experimental machine comprises a transmission device, a loading device and a detecting device. A servo motor is connected with a torque meter through a first coupling and is connected with a supporting shaft through a friction-torque clutch. The upper end surface of an impact weight is fixedly connected with an impact-weight lifting cylinder, a load sensor is positioned below the impact weight, a load-sensor measuring head is contacted with the upper end surface of a force-transferring rod, a steady-load loading cylinder is connected with a loading rod, the loading rod is fixedly connected with the load sensor, the steady-load loading cylinder and the impact-weight lifting cylinder are connected with a hydraulic station through oil pipes, the lower end surface of the force-transferring rod is contacted with a bearing seat, a joint-bearing sample is installed on the supporting shaft, and an outer ring of the joint-bearing sample is fixedly arranged in the bearing seat through an end cover. By adopting the invention, the detection for the tribological performance of the joint bearing can be realized under the conditions of different impact inertias and different rotating speeds.

Description

technical field [0001] The invention belongs to the field of testing machinery, and relates to an experimental machine for testing the tribological performance of joint bearings under impact loads, which can detect the tribological performance of joint bearings under different impact inertia and different rotational speed conditions. Background technique [0002] In order to ensure the safe take-off and landing of the aircraft, each part of the landing gear must have sufficient strength, rigidity and impact performance. At present, joint bearings are used more and more in landing gear, and their tribological performance under impact loads has attracted the attention of users. [0003] Joint bearing is a kind of sliding bearing with special structure. It is mainly composed of an inner ring with an outer spherical surface and an outer ring with an inner spherical surface. It can bear a large load. According to its different types and structures, it can withstand radial Load, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/04G01M7/08
Inventor 齐效文范兵利杨育林胡占齐高海碧李巍
Owner YANSHAN UNIV
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