CN2088233U - Apparatus for measuring half perimeter and contra-aperture planes parallelness of thin bush - Google Patents
Apparatus for measuring half perimeter and contra-aperture planes parallelness of thin bush Download PDFInfo
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- CN2088233U CN2088233U CN 91214356 CN91214356U CN2088233U CN 2088233 U CN2088233 U CN 2088233U CN 91214356 CN91214356 CN 91214356 CN 91214356 U CN91214356 U CN 91214356U CN 2088233 U CN2088233 U CN 2088233U
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- 238000002485 combustion reaction Methods 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims description 41
- 230000000694 effects Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 9
- 230000002146 bilateral effect Effects 0.000 description 3
- 206010008469 Chest discomfort Diseases 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004441 surface measurement Methods 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses an apparatus for measuring half perimeter and contra-aperture planes parallelism of thin bush used to measure the internal combustion engine. The utility model is characterized in that the two pressing blocks under a measuring pressure head are respectively provided with a swinging press plate which can rotate around a shaft, which makes the stress of the parting faces homogeneous when a bush is loaded; The front and the back ends of the swinging press plate are respectively provided with a measuring instrument which can simultaneously measure the parallelism error of the parting faces of the bush; The back of the measuring press head is provided with a perpendicular guiding slideway to ensure the precise guiding when the measuring press head moves up and down; The lower part of the measuring press head is provided with a horizontal guiding slideway; The measuring pressing block arranged on the horizontal guiding slideway can do open-close sliding along the horizontal guiding slideway, which is suitable for the measuring requirements of the thin bushes with different diameters.
Description
The present invention relates to a kind ofly be used to measure internal combustion engine thin-wall bearing shell semicircle girth and to the measurement mechanism of the actinal surface depth of parallelism.
Thin-wall bearing shell is a split plain bearing, and the measurement of its semicircle girth is taked under predetermined load F effect bearing shell to be pressed into standard test die holder hole usually, checks it to surpass a size of hole semicircle girth, promptly checks it " to measure high out-degree "-method of Sn value.Difference according to load F load mode, the measuring method of Sn value is divided into two kinds of monolateral loaded type (being method A) and bilateral loaded types (being method B) again, Fig. 7 and Fig. 8 have shown the measuring principle of these two kinds of methods, and are adopted by present known thin-wall bearing shell semicircle girth measurement mechanism widely.Measurement mechanism for employing method A, because the stress when monolateral load mode test status and bearing shell practical set is inconsistent, so its half peripheral length elasticity of compression deflection and calculated value differ bigger, measuring accuracy is lower, only is suitable for the measurement of the less thin-wall bearing shell semicircle girth of diameter; Measurement mechanism for known employing method B, though adopted comparatively rational bilateral load mode, but because two briquetting spacing can not be adjusted, its measurement range is restricted, its versatility is relatively poor, in addition, pulls (see figure 8) owing to only establish the swing pressure at the first end of measurement, make the nonparallelism difference of two pairs of relative cylindrical buses of actinal surface of tested bearing shell be accumulated in swing pressing plate one side and directly translate into the poor of two ends girth, the one-sided depth of parallelism of tested bearing shell counterpart face but can't be measured and be controlled.
Task of the present invention just provides and a kind ofly high-precisionly is suitable for the various model thin-wall bearing shell of internal combustion engine semicircle girth and to the measurement mechanism of the actinal surface measurement of paralleism.
Feature of the present invention is that two briquettings of measuring under the pressure head are designed to and can do the folding adjustment along measuring pressure head body lower horizontal guide rail, to satisfy the needs that the different-diameter bearing shell is measured; Two Sn value meters are arranged in the symmetric points at measuring head longitudinal centre line two ends, and measuring point is in the bearing shell width on the separated time, guarantee that its measured value is not subjected to the interference of inclination of bearing parting face error; Two briquettings are divided into the swing pressing plate that can pivot, and two meters are established in every swing pressing plate rear and front end, so that measure two parallel misalignment values to actinal surface of bearing shell simultaneously.In order to reduce the pressure head beat that piston rod and cylinder cap gap cause to greatest extent, be provided with the vertically-guided guide rail at the back side of measuring the pressure head body, closely cooperate with base-mounted vertically-guided slide plate, when guaranteeing that measuring pressure head moves up and down accurately on guiding and measurement of paralleism reference plane and the check mould reference plane remain equality, reduce measuring error.In addition, double pendulum dynamic pressure plate structure of the present invention also can guarantee to exist under the situation of parallelism error at bearing shell watt mouth, and the bearing shell section is stressed evenly to prevent inhomogeneous compression.
Measurement mechanism of the present invention compared with prior art has the measuring accuracy height, operation and easy to adjust, distinguishing features such as measurement range is wide, highly versatile.
Feature of the present invention will be illustrated more clearly in from the accompanying drawing of the following example.
Fig. 1 is the structure principle chart of measurement mechanism of the present invention;
Fig. 2 is the front view of measurement mechanism;
Fig. 3 is the side view of measurement mechanism;
Fig. 4 is a partial enlarged drawing of measuring the pressure head part among Fig. 3;
Fig. 5 is along the cut-open view of A-A section among Fig. 2;
Fig. 6 is a partial enlarged drawing of measuring the pressure head part among Fig. 2;
Fig. 7 is monolateral loaded type method of inspection measuring principle synoptic diagram;
Fig. 8 is bilateral loaded type method of inspection measuring principle synoptic diagram.
By Fig. 2 and shown in Figure 3, measurement mechanism of the present invention comprises machinery and hydrostatic transmission two parts, and entire measuring device is formed tower structure by base, two column, crossbeam.The last plane of base, can be fixed in check mould 14 on the workbench by the horizontal depression bar of T type bolt and back for the anterior workbench that has double-T shaped groove.The base bottom is provided with takes off material small oil tank 16.Double piston-rod master cylinder 5 is housed on the crossbeam, and its upper cylinder cover is equipped with pressure accurate adjustment valve 1, stroke flow speed control valve 2, and following cylinder cap is equipped with high-precision pressure indicating instrument 4, by pressure gauge stand and the oil pipe UNICOM high pressure chest that is connected upper cylinder cover.6 of ordinarily manometers communicate with low-pressure cavity by the pressure gauge stand, to monitor the oil cylinder back pressure.In order to ensure the loading accuracy of measuring load F, hydraulic system has been taked two-stage pressure-regulating, be that hydraulic power unit is established big flow spill valve and 6 pairs of pressure of ordinarily manometer carry out coarse adjustment, establish small-sized surplus valve and high-precision pressure table 4 pair pressure carries out accurate adjustment at the oil cylinder loam cake, because small-sized surplus valve reflection is sensitive, so can monitor at any time the high pressure chest pressure surge.On master cylinder 5 piston rod tops deceleration collision block 3 is housed, cooperates with stroke flow speed control valve 2, the speed when may command is measured the tested bearing shell counterpart of pressure head 7 convergences face is in case produce surge pressure; Master cylinder 5 piston-rod lower ends then are equipped with by connecting flange and measure pressure head 7.Be processed with " I " font section horizontal guide rail 26 in measurement pressure head 7 bottoms, be equipped with above the guide rail 26 and measure briquetting 11, by rotation knurled nut 13, the inner screw that can make and measure briquetting 11 screw-internal thread fit is also with its rotation, slide thereby can make measurement briquetting 11 do folding, to adjust required separation distance (seeing Fig. 4 and Fig. 6) along horizontal guide rail 26.Be equipped with respectively at the horizontal guide rail two ends that " Sn value meter 9, the spreading sounding rod of meter 9 pass through hole and point to reference plane (see figure 6) on the check mould 14.The swing pressing plate 12 that can pivot respectively is equipped with in two measurement briquettings 11 bottoms, respectively be equipped with one in each swing pressing plate 12 front and back and be used to measure watt scale of the mouth depth of parallelism 8, the gauge head of scale 8 points to and passes the measurement column 19 top (see figure 4)s of measuring the briquetting through hole and pointing to plane on swing pressing plate 12 rear and front ends.Before the measurement: at first measure outer the moving of briquettings 11 and be pressed on the check mould 14 on the plane with two, adjust loaded value F1 and F2 to calibration value (being F1+F2=2F), whole six meters (being micrometer gauge) are transferred to " 0 " position, and according to checking mould seat hole girth correction factor to adjust the compensation rate of meter 9, then, rise pressure head, tested bearing shell watt mouth top will be moved in two briquettings 11, make it the mean diameter that spacing equals the bearing shell inside and outside circle, load onto tested bearing shell and depress measurement pressure head 7, the meter 9 at measuring head two ends shows respectively that just bearing shell exceeds the value Sn(Sn=Sn1+Sn2 of mould seat hole semicircle girth, sees Fig. 8 for details, Fig. 2 and Fig. 3).Simultaneously, 12 of double pendulum dynamic pressure plates with bearing shell to the inclination that deflects of the depth of parallelism difference of actinal surface, so swing pressing plate 12 front and back two scales, 8 difference of readings are a watt mouth depth of parallelism difference (see figure 4).Be provided with vertically-guided guide rail 10 at the back side of measuring pressure head 7, closely cooperate with the vertically-guided slide plate 20 that is installed on the rear portion base 25, can guarantee to measure pressure head accurate guiding during vertical movement about in the of 7, because vertically-guided slide plate 20 is installed on the base 25 by dismountable bolt 21, when so this uses the back to produce the gap to kinematic pair for a long time when guide rail 10 and slide plate 20, adjust screw 22 up and down as long as suitably screw, just can eliminate the gap, guarantee the (see figure 5) that closely cooperates between them.In addition, for preventing respectively to have established stop screw 23 and 24 along horizontal guide rail 26 slippages at measurement pressure head 7 two ends and centre after measuring briquetting 11 positions sets up, carry out spacing (see figure 6) to measuring briquetting 11.When measurement finishes, when measurement pressure head 7 rises to the precalculated position, be contained in the stroke collision block 17 of measuring pressure head 7 back and depress the contact of limit switch 18, energized, watt oil cylinder 16 actions of may command top, by passing top watt pin 15 in base 25 and check mould 14 through holes, realize automatic material separator (seeing Fig. 1 and Fig. 2) with tested bearing shell jack-up.
In order to improve the performance of measurement mechanism of the present invention, prevent the spurious errors that operator's observed reading and mental arithmetic may cause, pointer pressure 4 and the higher digital pressure sensor of 6 usefulness precision can be replaced, the Sn value replaces with 9 usefulness grating length digital display amount instrument (its gauge head physical dimension and retained part are identical with clock gauge) with measurement of paralleism clock gauge 8.
Claims (6)
1, a kind ofly is used to measure internal combustion engine thin-wall bearing shell semicircle girth and to the measurement mechanism of the actinal surface depth of parallelism, mainly by base 25, measuring pressure head 7, measurement instrument 8 and 9, check mould 14 and Hydraulic Power Transmission System forms, check mould 14 is by being bolted on the base, measure pressure head 7 and can under the effect of hydraulic system master cylinder 5, do vertical movement up and down, it is characterized in that two measurement briquettings of measuring pressure head 7 are equipped with the swing pressing plate 12 that can pivot for 11 times, every swing pressing plate 12 rear and front ends are provided with the measurement instrument 8 that is used to measure inclination of bearing parting face; Be provided with horizontally-guided guide rail 26 in the bottom of measuring pressure head 7, the two measurement briquettings 11 that are contained on the horizontal guide rail 26 can be done the folding slip along this horizontal guide rail 26; Be provided with vertically-guided guide rail 10 at the back side of measuring pressure head 7, and be contained in vertically-guided slide plate 20 on the base 25 and closely cooperate and constitute a pair of kinematic pair; On the symmetric points of measuring pressure head 7 longitudinal centre line two ends, be furnished with and be used for the measurement instrument 9 that high out-degree Sn value measurement is promptly measured in the half peripheral length measurement.
2, according to the described measurement mechanism of claim 1, it is characterized in that vertically-guided slide plate 20 is installed on the base 25 by bolt 21, adjusting up and down under the effect that screw 22 screws power, but along continuous straight runs is done micro-slippage.
3, according to the described measurement mechanism of claim 1, it is characterized in that measuring pressure head 7 two ends and centre and respectively be provided with stop screw 23 and 24, can carry out spacing to measuring briquetting 11.
4, according to the described measurement mechanism of claim 1, it is characterized in that being provided with and take off material small oil tank 16 in base 25 bottoms, under its effect, by passing the top watt pin 15 in base 25 and check mould 14 through holes, can be with tested bearing shell jack-up.
5, according to the described measurement mechanism of claim 1, it is characterized in that deceleration collision block 3 being housed on master cylinder 5 piston rod tops, cooperate the speed when may command is measured the tested bearing shell counterpart of pressure head 7 convergences face with stroke flow speed control valve 2.
6,, it is characterized in that and pointer pressure 4 and 6 usefulness digital pressure sensors can be replaced that Sn value and measurement of paralleism clock gauge 8 and 9 usefulness grating length digital display amount instrument replace according to the described measurement mechanism of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91214356 CN2088233U (en) | 1991-04-10 | 1991-04-10 | Apparatus for measuring half perimeter and contra-aperture planes parallelness of thin bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91214356 CN2088233U (en) | 1991-04-10 | 1991-04-10 | Apparatus for measuring half perimeter and contra-aperture planes parallelness of thin bush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2088233U true CN2088233U (en) | 1991-11-06 |
Family
ID=4922570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91214356 Withdrawn CN2088233U (en) | 1991-04-10 | 1991-04-10 | Apparatus for measuring half perimeter and contra-aperture planes parallelness of thin bush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2088233U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967217A (en) * | 2012-11-20 | 2013-03-13 | 无锡麦铁精密机械制造有限公司 | Workpiece clamping and positioning mechanism |
| CN104019781A (en) * | 2014-06-17 | 2014-09-03 | 中国计量学院 | Measuring head capable of measuring radius height and contraaperture parallelism of bearing bush at the same time |
| CN105203006A (en) * | 2015-09-11 | 2015-12-30 | 南昌航空大学 | Parallel installation of the upper and lower pressure plates in the high temperature furnace of the sealing ring test bench and the detection method of parallelism |
| CN108562264A (en) * | 2018-07-11 | 2018-09-21 | 镇江环太硅科技有限公司 | Tool for detecting bearing shell surface deformation and flatness |
| CN108708903A (en) * | 2018-07-24 | 2018-10-26 | 安徽利达汽车轴承制造有限公司 | A kind of split-type shaft bearing member facilitating installation |
| CN111536925A (en) * | 2020-04-14 | 2020-08-14 | 西安航天精密机电研究所 | Automatic measurement selection and assembly system and plunger pump gasket assembly method |
| CN116294922A (en) * | 2023-01-31 | 2023-06-23 | 广西玉柴机器股份有限公司 | A cross-arc depth detection device and its application method |
-
1991
- 1991-04-10 CN CN 91214356 patent/CN2088233U/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967217A (en) * | 2012-11-20 | 2013-03-13 | 无锡麦铁精密机械制造有限公司 | Workpiece clamping and positioning mechanism |
| CN104019781A (en) * | 2014-06-17 | 2014-09-03 | 中国计量学院 | Measuring head capable of measuring radius height and contraaperture parallelism of bearing bush at the same time |
| CN105203006A (en) * | 2015-09-11 | 2015-12-30 | 南昌航空大学 | Parallel installation of the upper and lower pressure plates in the high temperature furnace of the sealing ring test bench and the detection method of parallelism |
| CN105203006B (en) * | 2015-09-11 | 2017-10-13 | 南昌航空大学 | Obturage the parallel installation of pressing disc in the-loop test bed high temperature furnace and Parallel testing method |
| CN108562264A (en) * | 2018-07-11 | 2018-09-21 | 镇江环太硅科技有限公司 | Tool for detecting bearing shell surface deformation and flatness |
| CN108708903A (en) * | 2018-07-24 | 2018-10-26 | 安徽利达汽车轴承制造有限公司 | A kind of split-type shaft bearing member facilitating installation |
| CN108708903B (en) * | 2018-07-24 | 2023-12-15 | 安徽利达汽车轴承制造有限公司 | A split bearing that is easy to install |
| CN111536925A (en) * | 2020-04-14 | 2020-08-14 | 西安航天精密机电研究所 | Automatic measurement selection and assembly system and plunger pump gasket assembly method |
| CN111536925B (en) * | 2020-04-14 | 2021-11-19 | 西安航天精密机电研究所 | Automatic measurement selection and assembly system and plunger pump gasket assembly method |
| CN116294922A (en) * | 2023-01-31 | 2023-06-23 | 广西玉柴机器股份有限公司 | A cross-arc depth detection device and its application method |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |