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Double-disc type lubricating oil traction force testing machine

A double disc type, dragging force technology, applied in the field of measuring instruments in the field of measurement and control technology, can solve the problems of inability to achieve simultaneous axial and radial loading, accurate test effects, difficulty in changing discs, etc. The effect of large range and improved test accuracy

Active Publication Date: 2012-12-12
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the double-disc testing machine or ball-disc testing machine for testing the drag characteristics of lubricating oil has the following problems: 1. The test piece (or ball test piece) driven by the electric spindle is used, and the cost is relatively high
2. For a disk (or ball) specimen that can rotate in the direction of the dragging force, the friction force of its supporting bearing (rolling bearing or hydrostatic bearing) itself is produced by the precise test of the dragging force between two disks (or balls). greater impact
3. At present, the lubricating oil test device can only realize radial loading, and cannot realize simultaneous axial and radial loading
4. After the solid disk is worn out, it is difficult to change the disk

Method used

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  • Double-disc type lubricating oil traction force testing machine
  • Double-disc type lubricating oil traction force testing machine
  • Double-disc type lubricating oil traction force testing machine

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Embodiment Construction

[0031] As shown in the figure, a double-disc lubricating oil drag force testing machine is composed of a motion simulation mechanism 1, a hydraulic loading mechanism 2, a force measuring mechanism 3 and a test disk quick replacement mechanism 4,

[0032] Described hydraulic loading mechanism 2 is provided with box body 201, is provided with a cavity 209 in the box body 201, is provided with boss 210 on the inner wall of box body 201, is provided with the upper disc shaft 108 of shaft shoulder 202 to pass through the cavity. Cavity 209, and form a hydraulic cavity 211 between the boss 210 and the inner wall of the box body 201, the two ends of the box body 201 are respectively provided with bearing end cover I 205 and bearing end cover II 206, the upper end of the box body 201 is provided with an oil inlet 203, and the lower end An oil drain port 204 is provided, and cylindrical roller bearings I 207 and cylindrical roller bearings II 208 are provided at both ends of the box bod...

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Abstract

The invention relates to a double-disc type lubricating oil traction force testing machine, which comprises a motor I, a motor II, a coupling I, a coupling II, a lower disc shaft, an upper disc shaft, a lower disc, an upper disc, a hydraulic loading mechanism and a force testing mechanism. With the testing machine of the present invention, real working conditions of the lubricating oil under an elastohydrodynamic lubrication state can be simulated, a rolling movement between the corresponding transmission contact members is accompanied with a sliding movement, continuous loading can be achieved, and the lubricating oil traction force under an elastohydrodynamic lubrication state can be accurately measured.

Description

technical field [0001] The invention relates to a measuring instrument in the technical field of measurement and control, in particular to an elastohydrodynamic lubrication drag test machine for measuring lubricating oil. Background technique [0002] The main feature of elastohydrodynamic lubrication (elastohydrodynamic lubrication) is to consider the elastic deformation and visco-pressure effect of the contact surface at the same time, while the transmission contact parts such as rolling bearings and gears are in the state of elastohydrodynamic lubrication in most cases. For example, in rolling bearings, when the inner ring of the bearing rotates, elastic deformation occurs between the roller and the inner and outer rings, and the frictional force generated between the roller and the lubricating oil film to drag the roller to move is called the drag force. [0003] The drag force has a great influence on the dynamic behavior of rolling bearings, gears and other transmissio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N13/00
Inventor 王燕霜尹宇鹤李璞曹佳伟李燕袁倩倩
Owner QILU UNIV OF TECH
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