CN100399006C - Method for positioning reading position for detecting radial pressure of piston ring - Google Patents
Method for positioning reading position for detecting radial pressure of piston ring Download PDFInfo
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- CN100399006C CN100399006C CNB2006100861152A CN200610086115A CN100399006C CN 100399006 C CN100399006 C CN 100399006C CN B2006100861152 A CNB2006100861152 A CN B2006100861152A CN 200610086115 A CN200610086115 A CN 200610086115A CN 100399006 C CN100399006 C CN 100399006C
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- reading
- piston ring
- location
- radial pressure
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- Pistons, Piston Rings, And Cylinders (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
A method for positioning a reading position in radial pressure detection of piston ring includes carrying out said detection repeatedly till accurate value is obtained in order to decrease error caused by deformation of strain window to raise detection accuracy. In said method, reading position is position that radial pressure value is changed from small to big and then changed to small again in following course of moving piston ring downwards, the moving height is decreased in following increase of moving frequency for raising operation efficiency.
Description
Technical field
The present invention relates to a kind of method of location of reading of definite radial pressure of piston ring detection, relate in particular to the method for positioning reading position that a kind of radial pressure of piston ring detects.
Background technology
The radial pressure location mode of existing detection piston ring has: 1. with single-point radial pressure measuring instrument, the directly pressure distribution of measurement ring; 2. use the multi-point radial pressure-measuring device, directly the pressure distribution of measurement ring.3. measure the compression of piston ring, thereby the radial pressure of estimating ring distributes; 4. measure the radius-of-curvature of piston ring free shape specified point, come the radial pressure of ring to distribute in view of the above; Method 3 can only be carried out qualitative analysis roughly; Method 4 is not direct measurement, and its result's confidence level is relatively poor.
All can not be convincing with above these two kinds of method gained results, remarkable distortion can take place in the pressure distribution that records.Trace it to its cause, the one, there be not the stressing conditions of real analog loop under in working order.Ring is suffered in cylinder to be continuous contact pressure, but above two kinds of methods all are that concentrated force is put on ring week.The 2nd, in testing process, need artificial adjustment, very high craftsmenship is arranged, have only the professional to be competent at.And in measuring process, introduced too much personal error, measurement repeated very poor.The present invention has proposed the method for positioning reading position that a kind of radial pressure of piston ring detects on the basis of local thin wall mensuration theory.
Summary of the invention
The invention provides the method for positioning reading position that a kind of radial pressure of piston ring that helps to improve the accuracy of detection of location of reading accuracy and piston ring detects.
The present invention adopts following technical scheme:
The method for positioning reading position that a kind of radial pressure of piston ring that is used for the radial pressure of piston ring detection detects:
The first step: get a thin-walled cover, the internal diameter of this thin-walled cover is corresponding with the external diameter of piston ring to be measured, on thin-walled cover side face, offer the strain window, on the strain window, stick the foil gauge of the radial pressure value that is used to read piston ring, again with piston ring along thin-walled cover axially be moved downward to first location of reading, this first location of reading is that the radial pressure value is changed from small to big and the position when beginning to diminish again;
Second step: with piston ring from first location of reading along thin-walled cover axially be moved upward to second location of reading, this second location of reading is to move up that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The 3rd step: piston ring is put along the third reading numerical digit that axially is moved downward to of thin-walled cover from second location of reading, and it is to move down that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring that this third reading numerical digit is put;
The rest may be inferred, piston ring axially is moved downward to the N location of reading from the N-1 location of reading along thin-walled cover, this N location of reading is to move down that radial pressure value in the process is changed from small to big and position when beginning to diminish again and as the final reading position with piston ring, N is 3～20, and above-mentioned mobile height reduces with the increase of mobile number of times.
Compared with prior art, the present invention has following advantage:
In the measurement, whether the piston ring position location has determined correctly whether measurement result is effective, all piston rings, a peak is arranged on the anchor ring short transverse, when ring is in running order, is not that whole anchor ring all contacts in casing wall, contact is peak with it, when measuring, must guarantee that this peak is in the foil gauge measuring position, so just can record the efficient pressure value.According to processing request, peak should continuous distribution encircle on week on the anchor ring short transverse, forms the contact bright band, and the distribution that this contact bright band should be contour at grade; The finished product ring of actual processing but is not such, and bright band is distributed with height the end, irregular.Therefore when measuring same loop, peak is inequality on the anchor ring short transverse, for measurement has brought difficulty.Using the method for positioning reading position of the radial pressure of piston ring detection among the present invention can eliminate owing to the peak measuring error that causes inequality on the anchor ring short transverse.
The full form change takes place under the pressure effect of piston ring the strain window needs certain hour, therefore, when ring arrives the measuring position, can not read correct voltage output immediately.Solution is to utilize method for positioning reading position repeated measurement that the radial pressure of piston ring among the present invention detects to value accurately, has reduced to have improved accuracy of detection because the strain window is out of shape the error that attracts; Simultaneously, in this process, location of reading is to move down that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring, moves height and reduces with the increase of mobile number of times, has heightened work efficiency.
From the actual detected result, this method for positioning reading position has duplicate measurements precision height and high efficiency, has realized the function of expection, has arrived Expected Results.
Embodiment
The method for positioning reading position that a kind of radial pressure of piston ring that is used for the radial pressure of piston ring detection detects:
The first step: get a thin-walled cover, the internal diameter of this thin-walled cover is corresponding with the external diameter of piston ring to be measured, on thin-walled cover side face, offer the strain window, on the strain window, stick the foil gauge of the radial pressure value that is used to read piston ring, again with piston ring along thin-walled cover axially be moved downward to first location of reading, this first location of reading is that the radial pressure value is changed from small to big and the position when beginning to diminish again;
Second step: with piston ring from first location of reading along thin-walled cover axially be moved upward to second location of reading, this second location of reading is to move up that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The 3rd step: piston ring is put along the third reading numerical digit that axially is moved downward to of thin-walled cover from second location of reading, and it is to move down that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring that this third reading numerical digit is put;
The rest may be inferred, piston ring axially is moved downward to the N location of reading from the N-1 location of reading along thin-walled cover, this N location of reading is to move down that radial pressure value in the process is changed from small to big and position when beginning to diminish again and as the final reading position with piston ring, N is 3～20, and above-mentioned mobile height reduces with the increase of mobile number of times.
Be 3,8 and 20 to be example with N respectively below, specific embodiments of the present invention be described:
Embodiment 1
The first step: get a thin-walled cover, the internal diameter of this thin-walled cover is corresponding with the external diameter of piston ring to be measured, on thin-walled cover side face, offer the strain window, on the strain window, stick the foil gauge of the radial pressure value that is used to read piston ring, again with piston ring along thin-walled cover axially be moved downward to first location of reading, this first location of reading is that the radial pressure value is changed from small to big and the position when beginning to diminish again;
Second step: with piston ring from first location of reading along thin-walled cover axially be moved upward to second location of reading, this second location of reading is to move up that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The 3rd step: piston ring is put along the third reading numerical digit that axially is moved downward to of thin-walled cover from second location of reading, it is to move down that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring that this third reading numerical digit is put, and this third reading numerical digit is put and is the final reading position.
Embodiment 2
The first step: get a thin-walled cover, the internal diameter of this thin-walled cover is corresponding with the external diameter of piston ring to be measured, on thin-walled cover side face, offer the strain window, on the strain window, stick the foil gauge of the radial pressure value that is used to read piston ring, again with piston ring along thin-walled cover axially be moved downward to first location of reading, this first location of reading is that the radial pressure value is changed from small to big and the position when beginning to diminish again;
Second step: with piston ring from first location of reading along thin-walled cover axially be moved upward to second location of reading, this second location of reading is to move up that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The 3rd step: piston ring is put along the third reading numerical digit that axially is moved downward to of thin-walled cover from second location of reading, and it is to move down that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring that this third reading numerical digit is put;
The 4th step: with piston ring from the third reading numerical digit put along thin-walled cover axially be moved upward to the 4th location of reading, the 4th location of reading is to move up that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The 5th step: with piston ring from the 4th location of reading along thin-walled cover axially be moved downward to the 5th location of reading, the 5th location of reading is to move down that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The 6th step: with piston ring from the 5th location of reading along thin-walled cover axially be moved upward to the 6th location of reading, the 6th location of reading is to move up that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The 7th step: with piston ring from the 6th location of reading along thin-walled cover axially be moved downward to the 7th location of reading, the 7th location of reading is to move down that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The 8th step: piston ring axially is moved upward to the 8th location of reading from the 7th location of reading along thin-walled cover, the 8th location of reading is to move up that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring, and the 8th location of reading is the final reading position.
Embodiment 3
The first step: get a thin-walled cover, the internal diameter of this thin-walled cover is corresponding with the external diameter of piston ring to be measured, on thin-walled cover side face, offer the strain window, on the strain window, stick the foil gauge of the radial pressure value that is used to read piston ring, again with piston ring along thin-walled cover axially be moved downward to first location of reading, this first location of reading is that the radial pressure value is changed from small to big and the position when beginning to diminish again;
Second step: with piston ring from first location of reading along thin-walled cover axially be moved upward to second location of reading, this second location of reading is to move up that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The 3rd step: piston ring is put along the third reading numerical digit that axially is moved downward to of thin-walled cover from second location of reading, and it is to move down that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring that this third reading numerical digit is put;
The 4th step: with piston ring from the third reading numerical digit put along thin-walled cover axially be moved upward to the 4th location of reading, the 4th location of reading is to move up that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The 5th step: with piston ring from the 4th location of reading along thin-walled cover axially be moved downward to the 5th location of reading, the 5th location of reading is to move down that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The 6th step: with piston ring from the 5th location of reading along thin-walled cover axially be moved upward to the 6th location of reading, the 6th location of reading is to move up that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The 7th step: with piston ring from the 6th location of reading along thin-walled cover axially be moved downward to the 7th location of reading, the 7th location of reading is to move down that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The 8th step: with piston ring from the 7th location of reading along thin-walled cover axially be moved upward to the 8th location of reading, the 8th location of reading is to move up that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The 9th step: piston ring is put along the third reading numerical digit that axially is moved downward to of thin-walled cover from the 8th location of reading, and the 9th location of reading is to move down that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The tenth step: with piston ring from the 9th location of reading along thin-walled cover axially be moved upward to the tenth location of reading, the tenth location of reading is to move up that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The 11 step: with piston ring from the tenth location of reading along thin-walled cover axially be moved downward to the 11 location of reading, the 11 location of reading is to move down that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The 12 step: piston ring is put along the tenth second reading numerical digit that axially is moved upward to of thin-walled cover from the 11 location of reading, and it is to move up that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring that the tenth second reading numerical digit is put;
The 13 step: piston ring put along the tenth third reading numerical digit that axially is moved downward to of thin-walled cover from the tenth second reading numerical digit put, it is to move down that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring that the tenth third reading numerical digit is put;
The 14 step: with piston ring from the tenth third reading numerical digit put along thin-walled cover axially be moved upward to the 14 location of reading, the 14 location of reading is to move up that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The 15 step: with piston ring from the 14 location of reading along thin-walled cover axially be moved downward to the 15 location of reading, the 15 location of reading is to move down that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The 16 step: with piston ring from the 15 location of reading along thin-walled cover axially be moved upward to the 16 location of reading, the 16 location of reading is to move up that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The 17 step: with piston ring from the 16 location of reading along thin-walled cover axially be moved downward to the 17 location of reading, the 17 location of reading is to move down that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The 18 step: with piston ring from the 17 location of reading along thin-walled cover axially be moved upward to the 18 location of reading, the 18 location of reading is to move up that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The 19 step: with piston ring from the 18 location of reading along thin-walled cover axially be moved downward to the 19 location of reading, the 19 location of reading is to move down that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The 20 step: piston ring axially is moved upward to the 20 location of reading from the 19 location of reading along thin-walled cover, the 20 location of reading is to move up that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring, and the 20 location of reading is the final reading position.
Claims (1)
1. the method for positioning reading position that detects of a radial pressure of piston ring is characterized in that:
The first step: get a thin-walled cover, the internal diameter of this thin-walled cover is corresponding with the external diameter of piston ring to be measured, on thin-walled cover side face, offer the strain window, on the strain window, stick the foil gauge of the radial pressure value that is used to read piston ring, again with piston ring along thin-walled cover axially be moved downward to first location of reading, this first location of reading is that the radial pressure value is changed from small to big and the position when beginning to diminish again:
Second step: with piston ring from first location of reading along thin-walled cover axially be moved upward to second location of reading, this second location of reading is to move up that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring;
The 3rd step: piston ring is put along the third reading numerical digit that axially is moved downward to of thin-walled cover from second location of reading, and it is to move down that radial pressure value in the process is changed from small to big and position when beginning to diminish again with piston ring that this third reading numerical digit is put;
The rest may be inferred, with piston ring from N-1 location of reading moving axially along thin-walled cover to the N location of reading, this N location of reading is to change from small to big and position when beginning to diminish again and as the final reading position with the radial pressure value in the piston ring moving process, N is 3～20, mobile height reduces with the increase of mobile number of times, piston ring is in the process that moves down when N gets odd number between 3～20, and piston ring is in the process that moves up when N gets even number between 3～20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100861152A CN100399006C (en) | 2006-08-31 | 2006-08-31 | Method for positioning reading position for detecting radial pressure of piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100861152A CN100399006C (en) | 2006-08-31 | 2006-08-31 | Method for positioning reading position for detecting radial pressure of piston ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1916581A CN1916581A (en) | 2007-02-21 |
| CN100399006C true CN100399006C (en) | 2008-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100861152A Expired - Fee Related CN100399006C (en) | 2006-08-31 | 2006-08-31 | Method for positioning reading position for detecting radial pressure of piston ring |
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| CN (1) | CN100399006C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181280B (en) * | 2015-09-09 | 2017-10-13 | 北京理工大学 | A kind of measurement apparatus of sealing ring radical elasticity |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044532A (en) * | 1990-02-02 | 1990-08-08 | 上海机械学院 | The local thin wall method is measured device and the scaling method thereof that radial pressure of piston ring distributes |
| CN2066981U (en) * | 1989-12-29 | 1990-12-05 | 武汉工学院 | Suspending integrate ring type wear simulation test machine for engine cylinder jacket-piston ring |
| CN2184495Y (en) * | 1994-02-21 | 1994-12-07 | 东风汽车公司 | Piston ring radial elastic sortor |
| US5974871A (en) * | 1997-05-09 | 1999-11-02 | Kabushiki Kaisha Riken | Tension measuring apparatus and method for piston ring |
-
2006
- 2006-08-31 CN CNB2006100861152A patent/CN100399006C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2066981U (en) * | 1989-12-29 | 1990-12-05 | 武汉工学院 | Suspending integrate ring type wear simulation test machine for engine cylinder jacket-piston ring |
| CN1044532A (en) * | 1990-02-02 | 1990-08-08 | 上海机械学院 | The local thin wall method is measured device and the scaling method thereof that radial pressure of piston ring distributes |
| CN2184495Y (en) * | 1994-02-21 | 1994-12-07 | 东风汽车公司 | Piston ring radial elastic sortor |
| US5974871A (en) * | 1997-05-09 | 1999-11-02 | Kabushiki Kaisha Riken | Tension measuring apparatus and method for piston ring |
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| Publication number | Publication date |
|---|---|
| CN1916581A (en) | 2007-02-21 |
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Granted publication date: 20080702 Termination date: 20110831 |