Oil flow state detection system for railway vehicle and analysis method
A technology for detecting system and flow state, which is applied in the field of hydraulic shock absorbers to achieve the effects of easy access, improved analysis efficiency, and clear and direct flow
Pending Publication Date: 2020-05-08
深圳市业成实业有限公司
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Problems solved by technology
[0003] Aiming at the technical defects existing in the prior art, the present invention proposes an oil flow state detection system and analysis method for rail vehicles. The application of the device and method effectively solves various technical problems in the existing oil change analysis. It has the characteristics of simple structure and convenient operation
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[0018] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with specific examples.
[0019] The principles and technical ideas of the present invention are as follows: 1. The oil pressure shock absorber composed of the inner cylinder of the shock absorber made of transparent pipe wall and the transparent outer cylinder is installed, and the bottom valve is pressed into the transparent inner cylinder after the fixed base of the outer cylinder is installed. According to the normal shock absorber assembly method, add the oil into the transparent shock absorber, and then seal the upper end with the end cover. This is a complete transparent shock absorber, which is the main structure of the oil flow; 2. In order to observe and analyze oil flow at a certain speed and tension pressure, a tension-compression dynamometer is connected to one end of...
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According to the oil flow state detection system for the railway vehicle, an oil pressure damper composed of a damper inner cylinder made of a transparent pipe wall and a transparent outer cylinder isadopted. After an outer cylinder fixing base is installed, a bottom valve assembly is pressed into the transparent inner cylinder, hydraulic oil is added, then the upper end of the bottom valve assembly is sealed through an end cover, and the transparent oil pressure damper is formed. The tension and compression sensor and the tension and compression testing machine are used for enabling the transparent oil pressure shock absorber to do telescopic motion, so that the change of oil can be observed. Beneficial effects are that: according to the technical scheme, the defect that a traditional method does not have intuition in detection is overcome. According to the technical scheme, changes of oil flowing through a piston valve system and a bottom valve system of the designed shock absorberin a motion state include whether a piston sealing structure is effective to the oil, internal leakage occurs under the action of what tension and pressure, advection or turbulence occurs when the oilpasses through the valve systems and oil bubbles phenomenon occurs are visually and effectively seen. The detection system has the technical characteristics of simple structure, convenience in use, simplicity in operation, visual verification and the like.
Description
technical field [0001] The invention belongs to the field of oil pressure shock absorbers for high-speed motor vehicles, and in particular relates to a detection system and analysis method for the oil flow state of rail vehicles. Background technique [0002] The existing rail vehicle hydraulic shock absorber mainly uses oil as the damping medium. During the movement of the shock absorber, the oil mainly generates damping force through the throttling effect of the piston valve and the bottom valve valve system, and absorbs vibration energy at the same time. The heat is transferred to the outer cylinder through the oil and dissipated to the air. It is very important to understand the flow state of the oil and the changes in the flow. Now the conventional shock absorber is a steel pipe welded structure, and the flow state of the oil during movement cannot be observed and analyzed. The shock absorber needs to be disassembled Afterwards, the oil is observed and analyzed, but th...
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IPC IPC(8): G01N11/00F16F9/19F16F9/32
CPCF16F9/19F16F9/32G01N11/00
Inventor 黄建伟吴旭吴彤
Owner 深圳市业成实业有限公司