CN105784282A

CN105784282A - Fuel accessory component oil leakage volume testing apparatus

Info

Publication number: CN105784282A
Application number: CN201510895158.4A
Authority: CN
Inventors: 李�浩; 杜龙龙; 林艺; 张忠荣; 刘群勃; 魏立
Original assignee: Xian Aero Engine Controls Co Ltd
Current assignee: Xian Aero Engine Controls Co Ltd
Priority date: 2015-12-07
Filing date: 2015-12-07
Publication date: 2016-07-20

Abstract

The invention discloses a fuel accessory component oil leakage volume testing apparatus which is configured in such that: the testing apparatus is provided with an enclosed cavity which is connected to a enclosed cavity pedestal, an oil inlet opening which is arranged on the wall of the enclosed cavity, and a plug which is disposed on the pedestal; two rubber rings are axially arranged along the inner wall inside the enclosed cavity; the two rubber ring, the enclosed cavity pedestal and the plug completely enclose oil leakage parts. According to the invention, the testing apparatus is characterized in such that: the rubber rings adopt radial sealing in order to provide reliable sealing for a test; side opening for oil leakage: specific oil receiving parts are designed to provide oil leakage volume information in an accurate manner, which makes oil leakage volume more accurate and reliable; an integrated clamp has a simple structure; the apparatus avoids influence from ambient environment and makes oil leakage volume accurate and reliable; a detachable apparatus is also provided with a specific to bar for detaching the component, which is easy and reliable.

Description

A kind of lower-grade fuel spare part leakage of oil amount assay device

Technical field

The invention belongs to engine test field, particularly relate to a kind of lower-grade fuel spare part and repair leakage of oil amount assay device.

Background technology

This valve couple at present, referring to Fig. 1, Fig. 2 is shown in by the fexible unit that the test of leakage of oil amount adopts, concrete test method sequentially includes the following steps: (1) combination test apparatus: cushion rubber 111,112 is loaded spacer shell 113, then spacer shell 113 is loaded fixture 114, be completed by assay device；(2) clamping tested parts: valve couple assembly 115 is loaded in composite test fixture, is held down assembly by handle 116；(3) leakage of oil amount is tested: pass into the fuel oil of certain pressure from fuel feeding, is checked the size of leakage of oil window 110 (see Fig. 1) place gap oil leakage amount by measuring cup.

This device is general valve couple flusher, for substituting the leakage of oil amount assay device of this spare part at present, specificity is relatively poor, by the service technique of this valve couple has been analyzed and researched, it has been found that this leakage of oil amount device experiment controls process Shortcomings, it is primarily present following two aspect, see Fig. 2: 1) sealing station of device and sealing means more, in life-time service process, due to cushion rubber abrasion or be installed improper, very easily cause the disappearance of leakage of oil amount, impact test accuracy；2) structure of device is unenclosed construction, and part leakage of oil position is fully exposed to outside, when collecting leakage of oil, collects leakage of oil by measuring cup, it is easy to disturbed by external condition.

Due to the spare part after using universal test device to test, with become in platform adnexa assembling and setting process, leakage of oil amount is unstable, accuracy there is also dispute, need such valve couple test of many times, troubleshooting be can be only achieved after reprocessing adnexa performance adjustment requirement, for reducing troubleshooting number of times, improve assembling and setting qualification rate, be badly in need of a kind of Special testing device to the test of this valve couple leakage of oil amount of invention, reach test data accurately and reliably, the low and easy to operate purpose of troubleshooting rate.

Summary of the invention

In order to solve in background technology existing technical problem, the present invention proposes a kind of lower-grade fuel spare part leakage of oil amount assay device, device stability, highly reliable, it is possible to completely reliable reach designing requirement.

The technical solution of the present invention is: a kind of lower-grade fuel spare part leakage of oil amount assay device, it is characterized in that described assay device includes closing chamber, and what be connected with closing chamber closes chamber base, the oil-in being located in closing cavity wall and the screw plug being arranged on base；Described closing intracavity has cushion rubber along inwall is axially arranged, and described cushion rubber is two；Two cushion rubbers, close chamber base and leakage of oil position is completely enclosed by screw plug.

The end face of above-mentioned screw plug is provided with cushion rubber.

Arranging oil-collecting hole on the base of above-mentioned closing chamber, the position of oil-collecting hole is being closed between two cushion rubbers of cavity wall.

Above-mentioned assay device also includes push rod, and described push rod is contained in the front end closing chamber for dismantling.

Above-mentioned assay device also includes holding down assembly with the handle closing chamber, closing chamber base is connected.

The invention has the beneficial effects as follows: this Special testing device stability, highly reliable, it is possible to completely reliable reach designing requirement, the popularization and application that this kind of structure is repaired in spare part leakage of oil amount assay device at lower-grade fuel have extensive prospect, specific as follows:

1) cushion rubber adopts radial seal mode, provides reliable sealing means for test；

2) side opening leakage of oil；Design connects oil position specially, accurately provides leakage of oil amount information, makes leakage of oil amount accurate, reliably；

3) monoblock type fixture, simple in construction；Avoid external environment to affect, make leakage of oil amount accurately, reliably；

4) provision for disengagement: design special push rod for dismantling spare part, convenient and reliable.

Accompanying drawing explanation

Fig. 1, Fig. 2 are the prior-art illustration of the present invention；

Fig. 3 .1 is the structural representation of the present invention；

Fig. 3 .2 is the P direction view of Fig. 3 .1；

Fig. 3 .3 is the push rod schematic diagram of assay device of the present invention；

Detailed description of the invention

Referring to Fig. 3 .1 Fig. 3 .3, the present invention design technology requirement to the test of this valve couple leakage of oil amount, it is tracked existing experimental control method and process analyzing, according to the technological deficiency existed in controlling test process and deficiency, finally invent following special leakage of oil amount assay device, be specifically shown in shown in Fig. 3 .1 Fig. 3 .3:

Assay device includes closing chamber 1, the closing chamber base 2 being connected with closing chamber 1, is located at the oil-in 3 and base-mounted screw plug 4 closed in cavity wall；Close in chamber 1 and have cushion rubber 5 and 6 along inwall is axially arranged；Screw plug 4 end face is equipped with cushion rubber 7；Leakage of oil position is completely enclosed by tested parts, cushion rubber 5, cushion rubber 6, cushion rubber 7, closing chamber base 2 and screw plug 4.Closing and arrange oil-collecting hole 9 on chamber base 2, the position of oil-collecting hole 9 is between cushion rubber 5 and 6；Assay device also includes push rod 10, and push rod 10 is contained in the front end closing chamber 1 for dismantling；Assay device also includes holding down assembly 8 with the handle closing chamber 1, closing chamber base 2 is connected.The test procedure of this Special testing device is:

1) clamping tested parts

Tested parts is shown in Fig. 1, is respectively charged into cushion rubber 5,6 by Fig. 3 .1 requirement, fuel feeding end is loaded test fixture down, then passes through handle and compresses spare part；

2) leakage of oil amount is tested

Pass into certain pressure fuel oil from oil-feed port, collect leakage of oil by measuring cup at oil-collecting hole place, check leakage of oil place gap oil leakage amount, after having tested, tested parts, screw plug 4 and all cushion rubbers are taken out, be screwed into dismounting push rod and part is taken out.

Scene of repairing is by Special experimental apparatus, test application practice referring to Fig. 3 proves: after Special experimental apparatus uses, the troubleshooting number of times of this part of erecting yard substantially reduces, and passes through data statistics, none example is done over again phenomenon because of leakage of oil in nearly half a year, improves assembling and setting qualification rate.

Claims

1. a lower-grade fuel spare part leakage of oil amount assay device, it is characterised in that: described assay device includes closing chamber, and what be connected with closing chamber closes chamber base, the oil-in being located in closing cavity wall and the screw plug being arranged on base；Described closing intracavity has cushion rubber along inwall is axially arranged, and described cushion rubber is two；Two cushion rubbers, close chamber base and leakage of oil position is completely enclosed by screw plug.

2. lower-grade fuel spare part leakage of oil amount assay device according to claim 1, it is characterised in that: the end face of described screw plug is provided with cushion rubber.

3. lower-grade fuel spare part leakage of oil amount assay device according to claim 2, it is characterised in that: arranging oil-collecting hole on the base of described closing chamber, the position of oil-collecting hole is being closed between two cushion rubbers of cavity wall.

4. lower-grade fuel spare part leakage of oil amount assay device according to claim 3, it is characterised in that: described assay device also includes push rod, and described push rod is contained in the front end closing chamber for dismantling.

5. lower-grade fuel spare part leakage of oil amount assay device according to claim 4, it is characterised in that: described assay device also includes holding down assembly with the handle closing chamber, closing chamber base is connected.