CN102252579A - Measuring tool for inner and outer diameter of sealing surface of fuel exchanger - Google Patents
Measuring tool for inner and outer diameter of sealing surface of fuel exchanger Download PDFInfo
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- CN102252579A CN102252579A CN2010105080269A CN201010508026A CN102252579A CN 102252579 A CN102252579 A CN 102252579A CN 2010105080269 A CN2010105080269 A CN 2010105080269A CN 201010508026 A CN201010508026 A CN 201010508026A CN 102252579 A CN102252579 A CN 102252579A
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Abstract
The invention provides a measuring tool for the inner and outer diameters of the sealing surface of a fuel exchanger, which relates to a tool for measuring the inner and outer diameters of the sealing surface of a fuel exchanger in a heavy water furnace type atomic furnace power plant. According to the measuring tool, one side of a flat strip-shaped main body is equipped with a fixed support part for fixing a support roller assembly. A scale gauge is arranged opposite to the fixed support part and a variable support roller assembly is arranged opposite to the variable support part. Meanwhile, the central part of the fixed support part is equipped with a through hole for a shaft to pass through. An inner diameter measuring hole and an outer diameter measuring hole are respectively arranged close to and apart form the above the through hole. The fixed support part is arranged on one side of the inner diameter setting part and the outer diameter setting part of the main body. The variable support part is arranged on one side of the inner diameter setting part and the outer diameter setting part of the main body.
Description
Technical field
The present invention relates to the internal diameter of the measurement sealing surface in the fuel interchanger of heavy water type of furnace atomic pile power house and the instrument of external diameter.
Background technology
In the past, by 30 inches anchor clamps heavy water of fuel interchanger leak cause, in magazine groove and magazine lid, the magazine end cap seal face, when using general measuring instrument, owing to form the pitch angle with sealing surface of sealing of becket shape, be difficult in the forward and backward measurement size of processing, and exist promptly to allow to measure also and produce very big measuring error because of structural problem, also cause simultaneously safeguarding confidence level lowly.
Summary of the invention
The present invention proposes in view of the above problems, and has following purpose.
The objective of the invention is to, when long-time use, under the situation that has heavy water to leak on the magazine groove of 30 inches anchor clamps and the sealing surface between the end cap, because the condition that high pressure turns round down and a lot of moisture, produce spot corrosion (Pitting), thereby behind processing magazine groove sealing surface, make in the new process of sealing, for leakage that prevents heavy water and the term of life that prolongs equipment to greatest extent, and correct measurement and confirm size.
Another object of the present invention is to, use a main body, optionally the variable support portion of one side fixed support portion and subtend correspondingly is set respectively with direction according to the position is set, thus can be shared when the internal diameter of measuring sealing surface or external diameter.
In order to realize above-mentioned purpose of the present invention, outside diameter measuring instrument in a kind of fuel interchanger sealing surface is provided, wherein, side in the main body of slat shape possesses a side fixed support portion that is provided with the fixed support roll assembly, possesses variable support portion, the subtend that is provided with calibration gauge and variable Support roller assembly in the subtend of an above-mentioned side fixed support portion, and possess in the centre of an above-mentioned side fixed support portion and to be used to a perforate that axle is passed through, and possessing inner diameter measurement perforate and outside diameter measuring perforate respectively with above-mentioned perforate adjoining position with away from the position of above-mentioned perforate, an above-mentioned side fixed support portion is arranged on the internal diameter that is disposed at aforementioned body and portion and external diameter is set a certain side in the portion is set, and variable support portion, above-mentioned subtend is arranged on the internal diameter that is disposed at aforementioned body and portion and external diameter is set a certain side in the portion is set.
And, outside diameter measuring instrument in a kind of fuel interchanger sealing surface also is provided, when the diameter that seals at the fuel interchanger that will measure was 30 inches, the diameter of said fixing backing roll was 1 inch, the diameter of above-mentioned variable backing roll is 1.375 inches.
And, outside diameter measuring instrument in a kind of fuel interchanger sealing surface also is provided, wherein, side in the main body of slat shape possesses a side support portion that utilizes a side backing roll, possesses the support portion, subtend that utilizes the subtend backing roll in the subtend of an above-mentioned side support portion, an above-mentioned side support portion side of the position between the support portion of above-mentioned both sides prolongs the support stick that setting has sleeve pipe, inboard at above-mentioned sleeve pipe is connected with micrometer, and the main shaft of micrometer is connected with an above-mentioned side support portion.
And, outside diameter measuring instrument in a kind of fuel interchanger sealing surface also is provided, the diameter of an above-mentioned side backing roll is 1 inch, the diameter of above-mentioned subtend backing roll is 1.375 inches.
Has following effect according to the present invention, promptly when making fuel interchanger seals, can carry out the measurement of internal diameter size easily with low error, thereby shortened process time and reduced radiation, maintenance quality can be improved and the making mistake can be prevented to seal in advance, and shortening maintenance time, and use a main body, according to regioselectivity ground and direction are set the variable support portion of a side fixed support portion and subtend is set respectively correspondingly, thereby is common in the internal diameter or outside diameter measuring of sealing surface.
Description of drawings
Fig. 1 be the preferred embodiments of the present invention illustration the part used of inner diameter measurement omit schematic section.
Fig. 2 is the diagrammatic top view of Fig. 1.
Fig. 3 is the diagrammatic top view that is illustrated in the state that among Fig. 2 the fixed support roll assembly is separated with variable Support roller assembly.
Fig. 4 be Fig. 1 want portion's enlarged drawing.
Fig. 5 is that another of Fig. 1 wanted portion's enlarged drawing.
Fig. 6 is that the part of Fig. 5 is omitted vertical view.
Fig. 7 is that the part of Fig. 4 is omitted vertical view.
Fig. 8 be another preferred embodiment of the present invention illustration the diagrammatic top view used of outside diameter measuring.
Fig. 9 is the user mode figure of Fig. 8, is cross section illustration figure.
Figure 10 is the schematic section of another preferred embodiment of the present invention.
Figure 11 be Figure 10 overlook illustration figure.
Description of symbols:
1: main body 2: the fixed support roll assembly
3: one side fixed support portions of 2 ': one side backing roll
3 ': one side support portion 3a, 6a: internal diameter is provided with portion
3b, 6b: external diameter is provided with portion 4: calibration gauge
4 ': subtend backing roll 4a: main shaft extension
5: variable Support roller assembly 5 ': the support portion, subtend
6: variable support portion 6 ', subtend: sleeve pipe
7,8,8,10 ': perforate 7 ': support stick
8 ': micrometer 9 ': main shaft
20,50: the built-in groove 20 ', 40 ' of roller, 54a: spring
22: stationary roll piece 24: the fixed support roller
26: lock(ing) bolt 28,58: connection holes
52: variable backing roll piece 52a: connecting port
54: variable backing roll 56: anticreep covers with roller
100: measuring object thing 110: sealing surface
Embodiment
Below, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
According to a preferred embodiment of the invention, extremely shown in Figure 9 as Fig. 1, be following structure: the side in the main body 1 of slat shape possesses a side fixed support portion 3 that is provided with fixed support roll assembly 2, possesses variable support portion 6, the subtend that is provided with calibration gauge 4 and variable Support roller assembly 5 in the subtend of an above-mentioned side fixed support portion 3, possesses a perforate 7 that is used to make axle to pass through in centre, possessing inner diameter measurement perforate 8 and outside diameter measuring perforate 9 respectively with above-mentioned perforate 7 adjoining positions with away from the position of above-mentioned perforate 7, an above-mentioned side fixed support portion 3 is arranged on the internal diameter that is disposed on the aforementioned body 1 and the 3a of portion and external diameter is set a certain side among the 3b of portion is set, and variable support portion 6, above-mentioned subtend is arranged on the internal diameter that is disposed on the aforementioned body and the 6a of portion and external diameter is set a certain side among the 6b of portion is set.
At this moment, said fixing Support roller assembly 2 comprises: stationary roll piece 22, and it forms the built-in groove 20 of roller in side central authorities; Fixed support roller 24, it embeds with the built-in groove 20 of above-mentioned roller and is connected; And lock(ing) bolt 26, it is the rear portion of the built-in groove 20 of above-mentioned roller, on stationary roll piece 22, be horizontally disposed with thread connecting mode, by exerting pressure and the fixed position to the rear portion of fixed support roller 24, the built-in groove 20 of above-mentioned roller constitutes, forward part is littler than the diameter of said fixing backing roll 24, the rear section can make fixed support roller 24 move in inside, thereby fixed support roller 24 can be in the inside of the built-in groove 20 of roller forward, move at the rear, and a part can forwards be passed through, but integral body can not pass through, and utilizes the both sides connection holes 28 of stationary roll piece 22,28, select internal diameter that the 3a of portion and external diameter are set a certain side among the 3b of portion is set, and direction is set correspondingly is provided with.
An above-mentioned side fixed support portion 3 is distinguished and is provided with that internal diameter is provided with the 3a of portion and external diameter is provided with the 3b of portion, when being provided with at internal diameter when on the 3a of portion fixed support roll assembly 2 being set, if with main body 1 is that the center is observed, be connected with the position direction outward of the built-in groove 20 of roller of fixed support roller 24, on the contrary, be provided with when on the 3b of portion fixed support roll assembly 2 being set at external diameter, if be that the center is observed with main body 1, the position of the built-in groove 20 of roller that is connected with fixed support roller 24 is towards interior direction.
Above-mentioned variable Support roller assembly 5 comprises: variable backing roll piece 52, and it is formed with the built-in groove 50 of roller in side central authorities; Variable backing roll 54, it embeds with the built-in groove 50 of above-mentioned roller and is connected, and connects by spring 54a resiliency supported; Anticreep is with roller lid 56, and it is provided with in the mode of top one side that covers above-mentioned variable backing roll piece 52 under the state of the inboard that variable backing roll 54 is built into the built-in groove 50 of above-mentioned roller; And calibration gauge 4, it is the rear portion of the built-in groove 50 of above-mentioned roller, the mode that can move horizontally with main shaft extension 4a is located on the variable backing roll piece 52, be used for being exerted pressure and change of location in the rear portion of variable backing roll 54, and fix setting by the connecting port 52a of variable backing roll piece 52, the built-in groove 50 of above-mentioned roller constitutes, forward part is littler than the diameter of above-mentioned variable backing roll 54, the rear section can make variable backing roll 54 move in inside, thereby variable backing roll 54 can be in the built-in groove of roller 50 inside forward, move at the rear, and a part can forwards be passed through, but integral body can not be passed through, and utilize the both sides connection holes 58 of variable roller piece 52,58, select internal diameter that the 6a of portion and external diameter are set a certain side among the 6b of portion is set, and direction is set correspondingly is provided with.
Variable support portion, above-mentioned subtend 6 is distinguished and is provided with that internal diameter is provided with the 6a of portion and external diameter is provided with the 6b of portion, when being provided with at internal diameter when variable Support roller assembly 5 is set on the 6a of portion, if with main body 1 is that the center is observed, be connected with the position direction outward of the built-in groove 50 of roller of variable backing roll 54, on the contrary, be provided with when variable Support roller assembly 5 is set on the 6b of portion at external diameter, if with main body 1 is that the center is observed, the position of the built-in groove 50 of roller that is connected with variable backing roll 54 is towards interior direction, this moment, calibration gauge 4 was arranged in a certain side of inner diameter measurement perforate 8 or outside diameter measuring perforate 9, thereby also can measure from the outside.
At this moment, when the diameter that seals when the fuel interchanger that will measure was 30 inches, the diameter of said fixing backing roll was preferably 1 inch, and the diameter of above-mentioned variable backing roll is preferably 1.375 inches.
In addition, according to another preferred embodiment of the invention, as Figure 10 and shown in Figure 11, side in the main body 1 of slat shape possesses a side support portion 3 ' that utilizes a side backing roll 2 ', possesses the support portion, subtend 5 ' that utilizes subtend backing roll 4 ' in the subtend of an above-mentioned side support portion 3 ', support portion 3 ' in above-mentioned both sides, an above-mentioned side of the position between 5 ' supports the prolongation of 3 ' side and is provided with the support stick 7 ' with sleeve pipe 6 ', inboard at above-mentioned sleeve pipe 6 ' is connected with micrometer 8 ', and the main shaft 9 ' of micrometer 8 ' is connected with an above-mentioned side support portion 5 '.
The side support portion 3 ' and the support portion, subtend 5 ' that are fixedly installed on the both sides of aforementioned body 1 form the carriage shape respectively, the centre that is connected with the support stick 7 ' of a side backing roll 2 ' endways is provided with spring 20 ', the centre that is connected with the main shaft 9 ' of subtend backing roll 4 ' endways is provided with spring 40 ', thereby makes an above-mentioned side backing roll 2 ' and subtend backing roll 4 ' have recuperability in the normal state.
When the diameter of the measuring object thing 100 that seals as the fuel interchanger that will measure is 30 inches, consider the pitch angle of sealing surface 110, and the diameter that constitutes an above-mentioned side backing roll 2 ' is 1 inch, and the diameter of above-mentioned subtend backing roll 4 ' is 1.375 inches.
Unaccounted symbol 10 ' expression is formed on the perforate of the central authorities of main body 1.
Below, the device of the present invention to as above constituting illustrates its action.
At first, referring to figs. 1 to the illustrative structure of Fig. 9, as set-up procedure, fixed support roll assembly 2 and 5 assemblings of variable Support roller assembly are arranged on the main body 1, and in the time will measuring internal diameter, the internal diameter that 2 assemblings of fixed support roll assembly are arranged in the side fixed support portion 3 is provided with the 3a of portion, variable Support roller assembly 5 assemblings are arranged on internal diameter the 6a of portion are set, in the time will measuring external diameter, the external diameter that 2 assemblings of fixed support roll assembly are arranged in the side fixed support portion 3 is provided with the 3b of portion, the external diameter that variable Support roller assembly 5 assemblings are arranged in the variable support portion 6, subtend is provided with the 6b of portion, thereby is used for the preliminary work of each measurement.
Then, utilizing master gauge setting to be positioned under the state of position of the fixed support roller 24 of both sides and variable backing roll 54, adjust the process of measured value, the preparation that is used to measure by utilizing calibration gauge 4.
Afterwards, utilize the measurement instrument of as above preparing, align with the sealing surface 110 of the measuring object thing 100 of actual measurement, the position of variable backing roll 54 is adjusted to the position that is used to measure by main shaft extension 4a, one side of wherein above-mentioned variable backing roll 54 is connected airtight the fixed support roller 24 in a side, and the subtend is positioned at the subtend of fixed support roller 24.
At this moment, because the inboard is built-in with spring 54a, thereby variable backing roll 54 in the built-in groove of roller 50 inside forward, the rear moves, and when under applying the state of elastic anchorage force, making main shaft extension 4a move and adjust, the variable backing roll 54 of fixed support roller 24 and subtend contacts on sealing surface 110, even thereby, also can on the position that will measure, measure by above-mentioned roller 24,54 according to the indicating graduation value of calibration gauge 4 owing to pitch angle 110 asymmetric its center differences that make.
Therefore, according to Fig. 1 to embodiment shown in Figure 9, making that the fuel interchanger seals or during other associated article, can measure the size of internal diameter or external diameter with low error easily, thereby shortened process time and reduced radiation, and not only improve maintenance quality but also can prevent to seal the making mistake in advance, and can shorten maintenance time, and use a main body 1, according to interior external diameter the 3a of portion is set, 3b, 6a, 6b the position being set and optionally the variable support portion 6 of one side fixed support portion 3 and subtend correspondingly is set respectively with direction, thus shared when the internal diameter of measuring sealing surface or external diameter.
In addition, according to Figure 10 and embodiment shown in Figure 11, in the time will measuring the internal diameter of the measuring object thing 100 that the interchanger that acts as a fuel seals, at first utilize master gauge, under the state of the position of side backing roll 2 ' that both sides are set and subtend backing roll 4 ', by utilizing micrometer 8 ' to adjust the process of measured value, the preparation that is used to measure.
Afterwards, utilize the measurement instrument of as above preparing, the internal diameter of the sealing surface 110 of the measuring object thing 100 that seals with fuel interchanger as actual measurement aligns, and makes the position of a side backing roll 2 ' and subtend backing roll 4 ' adjust to the position that is used to measure by regulating sleeve pipe 6 '.
At this moment, because the inboard is respectively equipped with spring 20 ', 40 ', if thereby sleeve pipe 6 ' moved and adjust applying, then a side backing roll 2 ' contacts on sealing surface 110 with subtend backing roll 4 ', thereby can the scale value according to sleeve pipe 6 ' measure internal diameter on the position that will measure.
Therefore, according to Figure 10 and embodiment shown in Figure 11, when making acts as a fuel the measuring object thing 100 that interchanger seals, can measure the size of internal diameter with low error easily, thereby shortened process time and reduced radiation, and not only can improve maintenance quality, can also prevent measuring object thing 100 making mistakes in advance, and realize the shortening of maintenance time.
Claims (8)
1. the interior outside diameter measuring instrument of fuel interchanger sealing surface is characterized in that,
Side in the main body (1) of slat shape possesses a side fixed support portion (3) that is provided with fixed support roll assembly (2),
Possesses the variable support portion, subtend (6) that is provided with calibration gauge (4) and variable Support roller assembly (5) in the subtend of an above-mentioned side fixed support portion (3), and possess in the centre of an above-mentioned side fixed support portion (3) and to be used to a perforate (7) that axle is passed through, and possessing inner diameter measurement perforate (8) and outside diameter measuring perforate (9) respectively with above-mentioned perforate (7) adjoining position with away from the position of above-mentioned perforate (7)
An above-mentioned side fixed support portion (3) is arranged on the internal diameter that is disposed at aforementioned body (1) and portion (3a) and external diameter is set a certain side in the portion (3b) is set,
Variable support portion, above-mentioned subtend (6) is arranged on the internal diameter that is disposed at aforementioned body and portion (6a) and external diameter is set a certain side in the portion (6b) is set.
2. outside diameter measuring instrument in the fuel interchanger sealing surface according to claim 1 is characterized in that,
Described fixed support roll assembly (2) comprising:
Stationary roll piece (22), it forms the built-in groove of roller (20) in a side centre;
Fixed support roller (24), it embeds with the built-in groove of described roller (20) and is connected; And
Lock(ing) bolt (26), it is the rear portion of the built-in groove of described roller (20), goes up at stationary roll piece (22) to be horizontally disposed with thread connecting mode, by exerting pressure and the fixed position to the rear portion of fixed support roller (24),
The built-in groove of described roller (20) constitutes, forward part is littler than the diameter of described fixed support roller (24), the rear section can make fixed support roller (24) move in inside, and utilize the both sides connection holes (28,28) of stationary roll piece (22), select internal diameter that portion (3a) and external diameter are set a certain side in the portion (3b) is set, and direction is set correspondingly is provided with.
3. outside diameter measuring instrument in the fuel interchanger sealing surface according to claim 1 is characterized in that,
A described side fixed support portion (3) is distinguished and is provided with that internal diameter is provided with portion (3a) and external diameter is provided with portion (3b),
When fixed support roll assembly (2) is set, with main body (1) be center when observing on portion (3a) is set at internal diameter, is being connected with the position direction outward of the built-in groove of roller (20) of fixed support roller (24),
On the contrary, when fixed support roll assembly (2) is set, with main body (1) be center when observing on portion (3b) is set at external diameter, the position of the built-in groove of roller (20) that is connected with fixed support roller (24) is towards interior direction.
4. outside diameter measuring instrument in the fuel interchanger sealing surface according to claim 1 is characterized in that,
Described variable Support roller assembly (5) comprising:
Variable backing roll piece (52), it is formed with the built-in groove of roller (50) in a side centre;
Variable backing roll (54), the built-in groove of its described roller (50) embed and connect, and connect by spring (54a) resiliency supported;
Anticreep is with roller lid (56), and it is provided with in the mode of top one side that covers described variable backing roll piece (52) under the state of the inboard that variable backing roll (54) is built into the built-in groove of described roller (50); And
Calibration gauge (4), it is the rear portion of the built-in groove of described roller (50), the mode that can move horizontally with main shaft extension (4a) is arranged on the variable backing roll piece (52), be used for being exerted pressure and change of location in the rear portion of variable backing roll (54), and fix setting by the connection (52a) of variable backing roll piece (52)
The built-in groove of described roller (50) constitutes, forward part is littler than the diameter of described variable backing roll (54), the rear section can make variable backing roll (54) move in inside, and utilize the both sides connection holes (58,58) of variable roller piece (52), select internal diameter that portion (6a) and external diameter are set a certain side in the portion (6b) is set, and direction is set correspondingly is provided with.
5. outside diameter measuring instrument in the fuel interchanger sealing surface according to claim 1 is characterized in that,
Variable support portion, described subtend (6) is distinguished and to be provided with that internal diameter is provided with portion (6a) and external diameter is provided with portion (6b),
When variable Support roller assembly (5) is set, with main body (1) be center when observing on portion (6a) is set at internal diameter, is being connected with the position direction outward of the built-in groove of roller (50) of variable backing roll (54),
On the contrary, be provided with when in the portion (6b) variable Support roller assembly (5) being set at external diameter, with main body (1) be center when observing, the position of the built-in groove of roller (50) that is connected with variable backing roll (54) is towards interior direction,
Described calibration gauge (4) is arranged in a certain side of inner diameter measurement perforate (8) or outside diameter measuring perforate (9), thereby also can measure from the outside.
6. the interior outside diameter measuring instrument of fuel interchanger sealing surface is characterized in that,
Side in the main body (1) of slat shape possesses a side support portion (3 ') that utilizes a side backing roll (2 '),
Possess the support portion, subtend (5 ') that utilizes subtend backing roll (4 ') in the subtend of a described side support portion (3 '),
One side support portion (3 ') the side prolongation position between the support portion (3 ', 5 ') of described both sides, described is provided with the support stick (7 ') with sleeve pipe (6 '),
Be connected with micrometer (8 ') in the inboard of described sleeve pipe (6 '), the main shaft (9 ') of micrometer (8 ') is connected with a described side support portion (5 ').
7. outside diameter measuring instrument in the fuel interchanger sealing surface according to claim 6 is characterized in that,
The side support portion (3 ') and the support portion, subtend (5 ') that are fixedly installed on the both sides of described main body (1) form the carriage shape respectively,
The centre that is connected with the support stick (7 ') of a side backing roll (2 ') endways is provided with spring (20 '), the centre that is connected with the main shaft (9 ') of subtend backing roll (4 ') endways is provided with spring (40 '), thereby makes a described side backing roll (2 ') and subtend backing roll (4 ') have recuperability in the normal state.
8. outside diameter measuring instrument in the fuel interchanger sealing surface according to claim 6 is characterized in that,
When the diameter of the measuring object thing (100) that will measure is 30 inches, consider the pitch angle of sealing surface (110), the diameter of a described side backing roll (2 ') is set at 1 inch, the diameter of described subtend backing roll (4 ') is set at 1.375 inches.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2010-0047312 | 2010-05-20 | ||
| KR1020100047312A KR20110127844A (en) | 2010-05-20 | 2010-05-20 | Fuel exchanger seal face measurement tool |
| KR10-2010-0047313 | 2010-05-20 | ||
| KR1020100047313A KR101104053B1 (en) | 2010-05-20 | 2010-05-20 | Fuel Exchanger Seal Face Measurement Tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102252579A true CN102252579A (en) | 2011-11-23 |
| CN102252579B CN102252579B (en) | 2014-01-22 |
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ID=44980007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010508026.9A Active CN102252579B (en) | 2010-05-20 | 2010-09-29 | Measuring tool for inner and outer diameter of sealing surface of fuel exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102252579B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5490335A (en) * | 1994-07-21 | 1996-02-13 | Chu; George H. | Inside and outside diameter measuring gauge |
| US5711083A (en) * | 1995-09-11 | 1998-01-27 | Bidwell Corporation | Gage set for measuring inside and outside diameters of ring-shaped parts |
| CN200996826Y (en) * | 2006-12-27 | 2007-12-26 | 上海汽轮机有限公司 | Large workpiece cylindrical measuring device |
| US7328520B2 (en) * | 2005-06-17 | 2008-02-12 | The Technologies Alliance, Inc. | Gage for measuring diameters |
| CN101266125A (en) * | 2008-05-08 | 2008-09-17 | 山东滨州渤海活塞股份有限公司 | Piston outside diameter integrated measuring apparatus |
-
2010
- 2010-09-29 CN CN201010508026.9A patent/CN102252579B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5490335A (en) * | 1994-07-21 | 1996-02-13 | Chu; George H. | Inside and outside diameter measuring gauge |
| US5711083A (en) * | 1995-09-11 | 1998-01-27 | Bidwell Corporation | Gage set for measuring inside and outside diameters of ring-shaped parts |
| US7328520B2 (en) * | 2005-06-17 | 2008-02-12 | The Technologies Alliance, Inc. | Gage for measuring diameters |
| CN200996826Y (en) * | 2006-12-27 | 2007-12-26 | 上海汽轮机有限公司 | Large workpiece cylindrical measuring device |
| CN101266125A (en) * | 2008-05-08 | 2008-09-17 | 山东滨州渤海活塞股份有限公司 | Piston outside diameter integrated measuring apparatus |
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|---|---|
| CN102252579B (en) | 2014-01-22 |
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