Rolling bearing performance testing device for applying radial alternating loads based on lead screw transmission

A technology of screw drive and rolling bearing, which is applied in the direction of mechanical bearing testing, etc., and can solve problems such as the inability to test internal combustion engine-mounted rolling bearings, single loading characteristics, and inability to load variable loads.

Inactive Publication Date: 2018-06-12
SHANGHAI JIAN QIAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the traditional rolling bearing test device has a single loading characteristic and cannot be loaded with variable loads. In real internal combustion engines, dynamically loaded

Method used

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  • Rolling bearing performance testing device for applying radial alternating loads based on lead screw transmission
  • Rolling bearing performance testing device for applying radial alternating loads based on lead screw transmission

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Embodiment

[0032] Such as figure 1The shown rolling bearing performance test device is based on the radial alternating load applied by the screw drive. The rolling bearing 12 includes a bearing inner ring, a bearing outer ring sleeved outside the bearing inner ring, and a bearing ring arranged between the bearing outer ring and the bearing inner ring. The cage and a plurality of rolling elements evenly arranged on the cage along the circumference of the inner ring of the bearing, the device includes a worktable 15, a rotating shaft supporting mechanism arranged on the working table 15, and a rotating shaft penetrating through the rotating shaft supporting mechanism in the horizontal direction. The shaft 10, the driving motor 2 arranged on the workbench 15 and connected to one end of the rotating shaft 10, and the radial alternating load loading unit 7 arranged on the workbench 15 and adapted to the rotating shaft 10, such as figure 2 As shown, the radial alternating load loading unit 7 ...

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Abstract

The invention relates to a rolling bearing performance testing device for applying radial alternating loads based on lead screw transmission. The rolling bearing performance testing device comprises aworking platform, a rotary shaft supporting mechanism, a rotary shaft, a driving motor and a radial alternating load loading unit, the radial alternating load loading unit comprises a loading unit support, a clamping block assembly and a pair of lead screw transmission radial loading mechanisms which are perpendicular to each other and are arranged on the loading unit support, and each lead screwtransmission radial loading mechanism comprises a first rotary motor, a second rotary motor, a first lead screw transmission assembly, a first spring loading assembly, a second lead screw transmission assembly and a second spring loading assembly. Compared with the prior art, the first rotary motors and the second rotary motors can apply radial alternating loads to rolling bearings in the clamping block assembly respectively through the first spring loading assemblies and the second spring loading assemblies to simulate the actual working condition of the mobile-load rolling bearings in an internal combustion engine, and the accuracy and reliability of the rolling bearing performance testing result are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of internal combustion engines, and relates to a rolling bearing performance test device for applying radial alternating loads based on screw drive. Background technique [0002] As power equipment, internal combustion engines have been widely used in many industries such as automobiles, ships, aircraft, tanks, railway locomotives, agricultural machinery, construction machinery, generator sets, etc., and occupy a very important position in the national economy. The internal combustion engine includes several pairs of important friction pairs such as slider-cylinder liner, slider ring-cylinder liner, crankshaft-bearing and cam-tappet. Among them, the crankshaft-bearing includes the main bearing and the connecting rod bearing (because this type of bearing The magnitude and direction of the working load change with time, so it is usually called a dynamic load bearing), which is one of the most critical friction...

Claims

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Application Information

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IPC IPC(8): G01M13/04
CPCG01M13/04
Inventor 张迪刘立华陈志澜
Owner SHANGHAI JIAN QIAO UNIV
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