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Device and method for detecting piston ring and piston rod sealing performance

A technology of sealing performance and detection device, which is applied in the direction of liquid tightness measurement using liquid/vacuum degree, by detecting the appearance of fluid at the leakage point, and by measuring the increase and deceleration rate of the fluid, etc., which can meet the requirements of use and have no piston Seal performance testing of ring and piston rod, unable to guarantee the sealing performance of piston ring and piston rod, etc.

Inactive Publication Date: 2013-06-19
XIAN TECHNOLOGICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is no device for testing the sealing performance of the piston ring and piston rod seal in China, which cannot guarantee that the sealing performance of the piston ring and piston rod seal meets the requirements of use

Method used

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  • Device and method for detecting piston ring and piston rod sealing performance
  • Device and method for detecting piston ring and piston rod sealing performance
  • Device and method for detecting piston ring and piston rod sealing performance

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Experimental program
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Embodiment Construction

[0033] The present invention is described in detail below in conjunction with accompanying drawing:

[0034] refer to Figure 2-a , Figure 2-b A sealing performance detection device for a piston ring and a piston rod seal, comprising a box assembly and a mechanical transmission assembly, the box assembly includes a base 21, a crankcase 17 and a cylinder, and the crankcase 17 is arranged on the base 21, The cylinder is arranged on the crankcase 17, the bottom of the cylinder communicates with the top of the crankcase 17, and the top of the crankcase 17 is provided with air holes. , crankshaft 14, flywheel 15, connecting rod 16, piston rod 25 and piston 31, described motor 22 is arranged on the base 21, and motor shaft is connected with transmission shaft 19 through right end coupling 20, and described crankshaft 14 is arranged in crankcase In 17, the two ends of the crankshaft 14 protrude from the crankcase 17 and are connected with the crankcase through bearings. One ...

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Abstract

The invention belongs to the technical field of piston sealing detection devices, in particular relates to a device and a method for detecting the piston ring and piston rod sealing performance. At present, the device for detecting the piston ring and piston rod sealing performance is not provided, so that using requirements on the piston ring and piston rod sealing performance cannot be met. According to the device, a crankshaft connection rod mechanism is driven by a motor to drive a piston to do reciprocating motion, the working process of the motor is simulated, the piston ring and piston rod sealing performance is detected by using easily leaked helium through a helium spectrum leak detector under the condition that the working state of an experimental table substantially accords with the actual condition of the motor, and shortcomings on design are found out, so that the motor has the optimal working state.

Description

technical field [0001] The invention belongs to the technical field of piston seal detection devices, and in particular relates to a sealing performance detection device and a detection method for piston ring and piston rod seals. Background technique [0002] The sealing performance testing device for piston ring and piston rod seal is a special equipment for measuring the sealing performance of piston ring and piston rod. The piston ring is one of the important parts of the internal combustion engine. The gap between the outer edge of the piston ring and the inner wall of the cylinder, that is, the airtightness between the piston ring and the cylinder wall, is related to the working efficiency of the engine, and the sealing performance of the piston rod is also related to the work of the engine. efficiency. In the working state, the cylinder is filled with high-pressure helium, and the poor sealing of the piston ring and piston rod will cause high-pressure helium leakage....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26G01M3/20
Inventor 刘建设申涛刘雅文
Owner XIAN TECHNOLOGICAL UNIV
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