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A test device for oil collection capacity of connecting rod oil inlet

A capability test, oil inlet technology, applied in the direction of measuring device, engine test, mechanical component test, etc., can solve the problem of lack of accurate measurement of lubricating oil

Active Publication Date: 2021-02-23
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a test device for the oil collection capacity of the connecting rod oil inlet to solve the problem that there is no technical means in the prior art that can be used to accurately measure the amount of lubricating oil entering the connecting rod bushing

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  • A test device for oil collection capacity of connecting rod oil inlet
  • A test device for oil collection capacity of connecting rod oil inlet
  • A test device for oil collection capacity of connecting rod oil inlet

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Embodiment Construction

[0038] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0039] Such as Figure 1-6 As shown, this embodiment provides a test device for the oil collection capacity of the connecting rod oil inlet, including a piston 1, a piston pin 2, a connecting rod bushing 3, a simulated connecting rod 4 and a driving device. The piston 1 is provided with internal cooling oil Cavity 11. The piston pin 2 is fixed on the piston 1, and the simulated connecting rod 4 is sleeved on the piston pin 2 through the connecting rod bushing 3. Specifically, the piston pin 2 is provided with an oil storage chamber 21, and is also provided with an oil collection hole 22 and an oil discharge hole 23 communicating with the oil storage chamber 21. The oil discharge hole 23 is provided with a detachable and washable plugging member 5. The rod bushing 3 is rotatably sleeved on the pist...

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Abstract

The invention relates to the technical field of testing the oil-collecting capacity of connecting rods, and specifically discloses a device for testing the oil-collecting capacity of the connecting rod's oil inlet. The connecting rod bushing, the simulated connecting rod fixedly sleeved on the connecting rod bushing, and the driving device that drives the simulated connecting rod to rotate, the piston is provided with an internal cooling oil chamber, and the simulated connecting rod is provided with an oil inlet. There is a lubricating oil port on the rod sleeve, and an oil storage chamber, an oil collection hole and an oil discharge hole connected to the oil storage chamber are provided on the piston pin. The oil inlet can be connected to the internal cooling oil chamber and the lubricating oil port. The port is always connected with the oil collection hole, so that the lubricating oil flowing out of the oil outlet hole of the internal cooling oil chamber can flow into the oil storage chamber through the oil inlet hole, the lubricating oil port and the oil collection hole in turn, and the lubricating oil quantity in the oil storage chamber is controlled. Statistics can obtain the amount of lubricating oil entering the connecting rod bushing, which can provide accurate calculation input for the calculation of the EHD of the small end of the connecting rod.

Description

technical field [0001] The invention relates to the technical field of testing the oil collecting capacity of a connecting rod, in particular to a testing device for the oil collecting capacity of an oil inlet port of a connecting rod. Background technique [0002] At present, diesel engines are developing toward high explosion pressure and high power, so the limitations of the existing lubrication methods for connecting rod bushes and piston pins are becoming more and more obvious. There is an increasing risk of the piston pin seizing into the connecting rod bushing. Therefore, it is necessary to make an accurate assessment of the risk of seizure between the piston pin and the connecting rod bushing during the engine development stage. [0003] In the prior art, the calculation method of EHD (Elasto Hydro Dynamic elastohydrodynamic lubrication) of the connecting rod small end can be used to evaluate the bite risk of the piston pin and the connecting rod bushing, but the ac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00G01M15/00
Inventor 付伟许成王雪崔凯
Owner WEICHAI POWER CO LTD
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