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Cylinder sleeve fatigue test device

A fatigue test, cylinder liner technology, applied in the direction of measuring device, engine test, mechanical parts test, etc., can solve the problems of cumbersome test process, high reliability, low efficiency, etc., to simplify the test components and expand the adjustment range , the effect of accurate positioning

Active Publication Date: 2014-04-30
CHINA NORTH ENGINE INST TIANJIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former test process is cumbersome, expensive, risky and inefficient
However, the working environment of the cylinder liner is real, the comprehensive effect of the load is obvious, and the reliability is high.

Method used

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  • Cylinder sleeve fatigue test device
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Experimental program
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Embodiment Construction

[0014] Such as figure 1 As shown, the pressure-bearing cylinder block 1 is the main support structure of the test device, which has the function of simulating the stiffness state of the body, supporting the test cylinder liner 3, connecting the combined cylinder head 2, and assisting the internal sealing of the cylinder. The lower part of the pressure-bearing cylinder is in the form of a flange and sits firmly on the floor of the laboratory, and can be fastened with anchor bolts; the inner cavity of the structure is designed in the form of a water jacket in the cylinder hole of the whole machine, and the upper and lower support and sealing structures of the cylinder liner are set. , forming a simulated water jacket to ensure that the support state of the test cylinder liner 3 is consistent with that of the whole machine. The cylinder head bolt holes designed around the pressure-bearing cylinder block 1 are arranged according to the requirements of the whole machine, so as ...

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Abstract

The invention relates to a cylinder sleeve fatigue test device. An annular sunk groove (13) and an annular sealing protrusion (14) used for supporting a cylinder sleeve (3) are arranged on a bearing cylinder body (1), a counter bore matched with a combined cylinder cover (2) is formed in an upper opening of the cylinder body, an oil inlet port and a sensor port are formed in an oil inlet (6) and an upper port of a pressure monitoring hole (7) in the cylinder body respectively, the cylinder sleeve (3) is arranged in the bearing cylinder body (1), the combined cylinder cover (2) is arranged in the counter bore of the combined cylinder cover (2) and the cylinder sleeve (3) in a sealing sleeved mode, a cylinder cushion (4) is arranged at the position where the combined cylinder cover (2) is connected with the cylinder sleeve (3), and an upper edge opening of the cylinder sleeve (3) and a simulation combustor cavity form a simulation combustor (8). According to the cylinder sleeve fatigue test device, sealing hidden troubles in the cylinder body are eliminated, stability of the test process is improved, the adjusting range of the pressure in the cylinder body is enlarged, and a cylinder sleeve fatigue examination and a fault reappearance test are facilitated.

Description

technical field [0001] The invention belongs to the field of cylinder liner fatigue test, in particular to a cylinder liner fatigue test device. Background technique [0002] As a component part of the engine combustion chamber, the cylinder liner is subjected to the periodic action of high temperature and high pressure during work, and its structural strength and fatigue reliability are very important. In particular, the shoulder of the cylinder liner is broken due to various factors such as overload, overspeed, and insufficient rigidity. In the product development stage, in order to discover the weak link of the fatigue strength of the cylinder liner in time and verify the feasibility of the scheme, component fatigue tests are often carried out on the basis of calculation and simulation. The cylinder liner fatigue test is generally divided into two types, one is the fatigue test of the whole machine, and the other is the fatigue test of mechanical components. The former...

Claims

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Application Information

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IPC IPC(8): G01M13/00G01M15/00
Inventor 狄建兵许春光侯晔星唐智钱志高张晓静卫军朝
Owner CHINA NORTH ENGINE INST TIANJIN
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