CN202471039U - Apparatus for measuring inner diameter of high pressure compressor rectifier - Google Patents
Apparatus for measuring inner diameter of high pressure compressor rectifier Download PDFInfo
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- CN202471039U CN202471039U CN2011205671235U CN201120567123U CN202471039U CN 202471039 U CN202471039 U CN 202471039U CN 2011205671235 U CN2011205671235 U CN 2011205671235U CN 201120567123 U CN201120567123 U CN 201120567123U CN 202471039 U CN202471039 U CN 202471039U
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Abstract
The utility model relates to an apparatus for measuring the inner diameter of a high pressure compressor rectifier, comprising a centering mechanism, a spacing mechanism, a first measuring mechanism, and a second measuring mechanism, wherein the centering mechanism comprises a body, a first positioning shaft and a second positioning shaft, the first and second positioning shafts are respectively fastened at both ends of the body, the center lines of the first and second positioning shafts are coincident with the center line of the body, the spacing mechanism comprises a first slide seat, a second slide seat and a plurality of spacing holes arranged on the body, the first and second slide seats are all mounted on the body and respectively fixed at the spacing holes corresponding to an object to be measured through a spacing pin and an anti-escaping spacer pin mounted on the positioning pin in the process of measuring, the first measuring mechanism is mounted on the first slide seat, the second measuring mechanism is mounted on the second slide seat, the first measuring mechanism is used for measuring the inner diameter of a plurality of front-stage blades of the high pressure compressor rectifier, and the second measuring mechanism is used for measuring the inner diameter of a plurality of rear-stage blades of the high pressure compressor rectifier.
Description
Technical field
The utility model belongs to the part inner diameter measuring device, particularly a kind of device of high-pressure compressor rectifier internal diameter of survey aircraft engine.
Background technology
The high-pressure compressor rectifier is the core ingredient of engine, and its structure is a multilevel hierarchy, and internal diameter at different levels is different; Requirement raising along with engine performance; The measurement of high-pressure compressor rectifier internal diameter is after part assemblings at different levels are accomplished, to carry out, and it is shaped as back taper, and the measurement basal plane is in closed state and the measuring position is limited; Thereby measure the difficulty increase, traditional appliance is no longer suitable.
Summary of the invention
The purpose of the utility model is to overcome the deficiency of prior art, and a kind of high-pressure compressor rectifier inner diameter measuring device is provided, to solve the accurate problems of measurement of the high-pressure compressor rectifier internal diameter after assembling is accomplished.
The said high-pressure compressor rectifier of the utility model inner diameter measuring device is made up of centering machine, spacing mechanism, first measuring mechanism, second measuring mechanism; Centering machine comprises main body, first locating shaft and second locating shaft, and first locating shaft, second locating shaft are fastened on the two ends of main body respectively, their center line all with the central lines of main body; Spacing mechanism comprises first slide, second slide and is arranged on the spacing hole on the main body; The spacing hole is a plurality of; First slide, second slide all are sleeved on the main body, through spacing pin and the anticreep spacer pin that is installed on the spacing pin they are separately fixed at place, the pairing spacing of measurand hole during measurement; First measuring mechanism is installed on first slide, and second measuring mechanism is installed on second slide.Said first measuring mechanism is used to measure the internal diameter of the former grade blades of high-pressure compressor rectifier, and said second measuring mechanism is used to measure the internal diameter of several grade blades behind the high-pressure compressor rectifier.
The said high-pressure compressor rectifier of the utility model inner diameter measuring device, its first measuring mechanism comprise that first slip pipe that length and the part internal diameter of surveying are complementary and first slide bar and first measuring head, first show folder, first guide rod, first meter, the first his-and-hers watches body, first retainer spring; First slip pipe is inserted in the sleeve pipe of first slide setting, and is fastening through first latch assembly, spacing through the anti-rotation spacer pin; First slide bar is inserted in first slip pipe, and is fastening through first lock-screw, spacing through the second anti-rotation spacer pin; The first his-and-hers watches body is installed on first slip pipe; The upper end of first guide rod is fixed on the first his-and-hers watches body, and the first table folder is " Z " font structure, is sleeved on first guide rod through the pilot hole that is provided with on it; The first slip-off preventing part through being installed in first lower end of the guide rod is spacing; Through second lock-screw first table folder is linked into an integrated entity with first slide bar, first meter is installed on the first table folder, and the center line of its table bar is parallel with the center line of first guide rod; First measuring head is installed in the lower end of first slide bar, and first retainer spring is sleeved on first slide bar.
In order to make the first his-and-hers watches body that is fixed on first slip pipe not produce inclination; Be provided with first balancing spring; Said first balancing spring is two, the upper end of two balancing springs respectively be fixed on first slide on peg be connected, the lower end of two balancing springs is connected with the first his-and-hers watches body respectively.
In order to reduce difficulty of processing, be provided with first orienting sleeve at the two ends of this pilot hole to the pilot hole of the first table folder setting.
The said high-pressure compressor rectifier of the utility model inner diameter measuring device, first latch assembly in its first measuring mechanism is made up of stop pin, pull bar, clamp nut and pull bar lining.
The said high-pressure compressor rectifier of the utility model inner diameter measuring device, its second measuring mechanism comprise second slip pipe and second slide bar and second measuring head, the second table folder, second guide rod, second meter, the second his-and-hers watches body and second retainer spring that the length and the part internal diameter of surveying are complementary; Second slip pipe is inserted in the sleeve pipe of second slide setting, and is fastening through second latch assembly, spacing through the 3rd anti-rotation spacer pin; Second slide bar is inserted in second slip pipe, and is fastening through the 3rd lock-screw, spacing through the 4th anti-rotation spacer pin; The second his-and-hers watches body is installed on second slip pipe; The upper end of second guide rod is fixed on the second his-and-hers watches body, and the second table folder is " Z " font structure, is sleeved on second guide rod through the pilot hole that is provided with on it; The second slip-off preventing part through being installed in second lower end of the guide rod is spacing; Through the 4th lock-screw the second table folder is linked into an integrated entity with second slide bar, second meter is installed on the second table folder, and the center line of its table bar is parallel with the center line of second guide rod; Second measuring head is installed in the lower end of second slide bar, and second retainer spring is sleeved on second slide bar.
In order to make the second his-and-hers watches body that is fixed on second slip pipe not produce inclination; Be provided with second balancing spring; Said second balancing spring is two, the upper end of two balancing springs respectively be fixed on second slide on peg be connected, the lower end of two balancing springs is connected with the second his-and-hers watches body respectively.
In order to reduce difficulty of processing, be provided with second orienting sleeve at the two ends of this pilot hole to the pilot hole of the second table folder setting.
The said high-pressure compressor rectifier of the utility model inner diameter measuring device, second latch assembly in its second measuring mechanism is made up of stop pin, pull bar, clamp nut and pull bar lining.
It can be seen from the above; The structure of second measuring mechanism and first measuring mechanism are basic identical; Difference is because first measuring mechanism is used to measure the internal diameter of the former grade blades of high-pressure compressor rectifier; Said second measuring mechanism is used to measure the internal diameter of several grade blades behind the high-pressure compressor rectifier; And the internal diameter of the former grade blades of high-pressure compressor rectifier is less than the internal diameter of several grade blades in back, thereby second slip pipe in second measuring mechanism and the second slide bar length are greater than the length of first slip pipe in first measuring mechanism and first slide bar, to satisfy the needs of measuring.
For the ease of operating first slide and second slide, be provided with on first slide and second slide and handle knob.
The utlity model has following beneficial effect:
1, the said measurement mechanism of the utility model efficiently solves the difficult problem that the high-pressure compressor rectifier internal diameter after assembling is accomplished detects, and testing efficient is increased substantially, and the frock manufacturing cost reduces.
2, the said high-pressure compressor rectifier of the utility model inner diameter measuring device realized the location, centering reliable and stable, easy and simple to handle, accuracy of reading is quick on the draw, and has good usability and application prospect.
Description of drawings
Fig. 1 is the structural representation of the said high-pressure compressor rectifier of the utility model inner diameter measuring device;
Fig. 2 is the structural representation of first measuring mechanism among Fig. 1, and this figure has also described the array mode of first measuring mechanism and first slide;
Fig. 3 is the structural representation of second measuring mechanism among Fig. 1, and this figure has also described the array mode of second measuring mechanism and second slide;
Fig. 4 is the A1-A1 of Fig. 2 and the A2-A2 cut-open view of Fig. 3;
Fig. 5 is the B1-B1 of Fig. 2 and the B2-B2 cut-open view of Fig. 3;
Fig. 6 is a kind of structural representation of tested high-pressure compressor rectifier, and with the assembling synoptic diagram of the supporting frock clamp of measuring its internal diameter.
Among the figure, 1-first locating shaft, 2-holding pin (2-1: first holding pin, 2-2: second holding pin); 3-main body, 4-first slide, 5-measured hole (5-1: first measured hole, 5-2: second measured hole, 5-3: the 3rd measured hole, 5-4: the 4th measured hole, 5-5: the 5th measured hole, 5-6: the 6th measured hole, 5-7: the 7th measured hole, 5-8: the 8th measured hole, 5-9: the 9th measured hole), 6-second slide, 7-second locating shaft; 8-first measuring mechanism, 9-are handled knob (9-1: first handle knob, 9-2: second handles knob), 10-second measuring mechanism; 11-anti-rotation spacer pin (11-1: the first anti-rotation spacer pin, 11-2: the second anti-rotation spacer pin, 11-3: the 3rd anti-rotation spacer pin, 11-4: the 4th anti-rotation spacer pin), 12-first slip pipe, 13-first slide bar; The 14-lock-screw (14-1: first lock-screw, 14-2: second lock-screw, 14-3: the 3rd lock-screw, 14-4: the 4th lock-screw), 15-measuring head anti-rotation spacer pin (15-1: the first measuring head anti-rotation spacer pin, 15-2: the second measuring head anti-rotation spacer pin), 16-measuring head (16-1: first measuring head, 16-2: second measuring head); The 17-retainer spring (17-1: first retainer spring, 17-2: second retainer spring), 18-slip-off preventing part (18-1: the first slip-off preventing part, 18-2: the second slip-off preventing part), 19-orienting sleeve (19-1: first orienting sleeve, 19-2: second orienting sleeve); The 20-meter (20-1: first meter, 20-2: second meter), 21-table bushing (21-1: the first table bushing, 21-2: the second table bushing), 22-table bar trip bolt (22-1: the first table bar trip bolt, 22-2: the second table bar trip bolt); 23-table folder (23-1: the first table folder, 23-2: the second table folder), the 24-guide rod (24-1: first guide rod, 24-2: second guide rod), 25-his-and-hers watches body (25-1: the first his-and-hers watches body, 25-2: the second his-and-hers watches body); The 26-hold-down nut (26-1: first hold-down nut, 26-2: second hold-down nut), the 27-balancing spring (27-1: first balancing spring, 27-2: second balancing spring), 28-second slip pipe; 29-second slide bar; 30-spacing pin, 31-peg, 32-anticreep spacer pin, 33-stop pin; The 34-pull bar; The 35-clamp nut, 36-pull bar lining, 37-locating support; The 38-supporting base; 39-location adjustment packing ring, 40-tested part, the locating surface on the C-main body.
Embodiment
Be described further below in conjunction with the structure and the use of accompanying drawing the said high-pressure compressor rectifier of the utility model inner diameter measuring device.
In the present embodiment, the structure of high-pressure compressor rectifier inner diameter measuring device is as shown in Figure 1, is made up of centering machine, spacing mechanism, first measuring mechanism 8, second measuring mechanism 10.Centering machine comprises main body 3, first locating shaft 1 and second locating shaft 7; Main body 3 is a pipe, and first locating shaft 1 and second locating shaft 7 are cylindrical, and their external diameter is identical with the internal diameter nominal size of main body; And be stationary fit; First locating shaft, second locating shaft are pressed into the two ends of main body respectively, install with the concentricity line of main body, and use the first holding pin 2-1, the second holding pin 2-2 fastening respectively.Spacing mechanism comprises first slide 4, second slide 6 and is arranged on nine spacing hole 5-1,5-2,5-3,5-4,5-5,5-6,5-7,5-8, the 5-9 on the main body; First slide 4, second slide 6 are by forming with the sleeve pipe of main body assembly, the sleeve pipe that installs and measures mechanism; The center line of two sleeve pipes is vertical each other; The sleeve pipe of first slide 4 and main body assembly is provided with first 9-1 that handles knob; The sleeve pipe of second slide 6 and main body assembly is provided with second 9-2 that handles knob; The position in nine spacing holes confirms that according to the spacing between the blade of tested high-pressure compressor rectifier first slide, second slide all are sleeved on the main body 3, through spacing pin 30 and the anticreep spacer pin 32 that is installed on the spacing pin they is separately fixed at place, the pairing spacing of measurand hole during measurement.
The structure of first measuring mechanism 8 is as shown in Figure 2, comprises that first slip pipe 12 that length and the part internal diameter of surveying are complementary and first slide bar 13 and the first measuring head 16-1, first show to press from both sides 23-1, the first guide rod 24-1, the first meter 20-1, the first his-and-hers watches body 25-1, the first retainer spring 17-1; First slip pipe 12 is inserted in the sleeve pipe of first slide, 4 settings; Fastening through first latch assembly; 11-1 is spacing through the anti-rotation spacer pin, and the structure of said first latch assembly is as shown in Figure 5, is made up of stop pin 33, pull bar 34, clamp nut 35 and pull bar lining 36; First slide bar 13 is inserted in first slip pipe 12, and is fastening through the first lock-screw 14-1, spacing through the second anti-rotation spacer pin 11-2; The first his-and-hers watches body 25-1 is installed on first slip pipe 12; And prevent its inclination through two first balancing spring 27-1; The upper end of two balancing springs respectively be fixed on first slide on peg 31 be connected, the lower end of two balancing springs is connected (see figure 4) with the first his-and-hers watches body 25-1 respectively; The upper end of the first guide rod 24-1 is fixed on the first his-and-hers watches body through the first hold-down nut 26-1; The first table folder 23-1 is " Z " font structure; It is provided with pilot hole, and said pilot hole two ends are provided with the first orienting sleeve 19-1, and the first table folder is sleeved on the first guide rod 24-1 through the pilot hole that two ends are provided with first orienting sleeve; The first slip-off preventing part 18-1 through being installed in the first guide rod 24-1 lower end is spacing, and the said first slip-off preventing part is a nut; Through the second lock-screw 14-2 the first table folder 23-1 and first slide bar 13 are linked into an integrated entity; The first meter 20-1 is installed on the first table folder 23-1; Its table bar is inserted in the first table bushing 21-1; Fix through the first table bar trip bolt 22-1, the center line of said table bar is parallel with the center line of first guide rod; The first measuring head 16-1 is installed in the lower end of first slide bar 13, and the first retainer spring 17-1 is sleeved on first slide bar 13.
The structure of second measuring mechanism 10 is as shown in Figure 3, comprises second slip pipe 28 and second slide bar 29 and the second measuring head 16-2, the second table folder 23-2, the second guide rod 24-2, the second meter 20-2, the second his-and-hers watches body 25-5 and the second retainer spring 17-2 that the length and the part internal diameter of surveying are complementary; Second slip pipe 28 is inserted in the sleeve pipe of second slide, 6 settings; Fastening through second latch assembly; Spacing through the 3rd anti-rotation spacer pin 11-3, the structure of said second latch assembly is as shown in Figure 5, is made up of stop pin 33, pull bar 34, clamp nut 35 and pull bar lining 36; Second slide bar 29 is inserted in second slip pipe 28, and is fastening through the 3rd lock-screw 14-3, spacing through the 4th anti-rotation spacer pin 11-4; The second his-and-hers watches body 25-2 is fixed on second slip pipe 28; And prevent its inclination through two second balancing spring 27-2; The upper end of two balancing springs respectively be fixed on second slide on peg 31 be connected, the lower end of two balancing springs is connected (see figure 4) with the first his-and-hers watches body 25-2 respectively; The upper end of the second guide rod 24-2 is fixed on the second his-and-hers watches body through the second hold-down nut 26-2; The second table folder 23-2 is " Z " font structure; It is provided with pilot hole, and said pilot hole two ends are provided with the second orienting sleeve 19-2, and the second table folder is sleeved on the second guide rod 24-2 through the pilot hole that two ends are provided with second orienting sleeve; The second slip-off preventing part 18-2 through being installed in the second guide rod 24-2 lower end is spacing, and the said second slip-off preventing part is a nut; Through the 4th lock-screw 14-4 the second table folder 23-2 and second slide bar 29 are linked into an integrated entity; The second meter 20-2 is installed on the second table folder 23-2; Its table bar is inserted in the second table bushing 21-2; Fix through the second table bar trip bolt 22-2, the center line of said table bar is parallel with the center line of second guide rod; The second measuring head 16-2 is installed in the lower end of second slide bar 29, and the second retainer spring 17-2 is sleeved on second slide bar 29.
The said measurement mechanism of present embodiment is used to measure the internal diameter of nine grades of high-pressure compressor rectifiers; The maximum inner diameter of its blade is φ 543.5mm; Apart from the basal plane degree of depth is 742mm; The minor diameter of its blade is φ 406.1mm, is 218.98mm apart from the basal plane degree of depth, and shape and structure after said nine grades of high-pressure compressor rectifiers assembling is accomplished are seen Fig. 6.Internal diameter with the said measurement mechanism detection of present embodiment high-pressure compressor rectifier needs the front end installing and locating support 37 at high-pressure compressor rectifier 40 to be detected, rear end installation bearing seat 38, installing and locating adjustment packing ring 39 in the groove of supporting base 38 ends.With the internal diameter (see figure 1) of first measuring mechanism, the 8 measurement second level, third level blade, measure the internal diameter (see figure 1) of the fourth stage to the ten grade blades with second measuring mechanism 10.
During measurement; Installation bearing seat 38 at first in the rear end of high-pressure compressor rectifier 40 to be detected; Installing and locating adjustment packing ring 39 in the groove of supporting base 38 ends; Then the said measurement mechanism of present embodiment is packed in the high-pressure compressor rectifier 40 to be detected, its second locating shaft 7 is inserted in the pilot hole of supporting bases 38, make the locating surface C on the main body 3 be close to the end face of adjusting packing ring 39; At the front end installing and locating support 37 of high-pressure compressor rectifier 40 to be detected, first locating shaft 1 is inserted in the pilot hole of locating support 37 then.When measuring the internal diameter of the second level, third level blade, first measuring mechanism 8 only is installed, is measured the internal diameter of the fourth stage to the ten grade blades, second measuring mechanism 10 only is installed.
Claims (10)
1. a high-pressure compressor rectifier inner diameter measuring device is characterized in that being made up of centering machine, spacing mechanism, first measuring mechanism (8), second measuring mechanism (10);
Centering machine comprises main body (3), first locating shaft (1) and second locating shaft (7), and first locating shaft, second locating shaft are fastened on the two ends of main body respectively, their center line all with the central lines of main body (3);
Spacing mechanism comprises first slide (4), second slide (6) and is arranged on the spacing hole (5) on the main body; The spacing hole is a plurality of; First slide, second slide all are sleeved on the main body (3), through spacing pin (30) and the anticreep spacer pin (32) that is installed on the spacing pin they are separately fixed at the pairing spacing of measurand hole place during measurement;
First measuring mechanism (8) is installed on first slide (4), and second measuring mechanism (10) is installed on second slide (6).
2. according to the said high-pressure compressor rectifier of claim 1 inner diameter measuring device, it is characterized in that first slip pipe (12) that first measuring mechanism (8) comprises that the length and the part internal diameter of surveying are complementary and first slide bar (13) and first measuring head (16-1), first show to press from both sides (23-1), first guide rod (24-1), first meter (20-1), the first his-and-hers watches body (25-1), first retainer spring (17-1);
First slip pipe (12) is inserted in the sleeve pipe of first slide (4) setting, and fastening through first latch assembly, (11-1) is spacing through the anti-rotation spacer pin; First slide bar (13) is inserted in first slip pipe (12), and (14-1) is fastening through first lock-screw, and is spacing through the second anti-rotation spacer pin (11-2); The first his-and-hers watches body (25-1) is installed on first slip pipe (12); The upper end of first guide rod (24-1) is fixed on the first his-and-hers watches body; The first table folder (23-1) is " Z " font structure; Pilot hole through being provided with on it is sleeved on first guide rod (24-1), and is spacing through the first slip-off preventing part (18-1) that is installed in first guide rod (24-1) lower end, through second lock-screw (14-2) the first table folder (23-1) linked into an integrated entity with first slide bar (13); First meter (20-1) is installed on the first table folder (23-1), and the center line of its table bar is parallel with the center line of first guide rod; First measuring head (16-1) is installed in the lower end of first slide bar (13), and first retainer spring (17-1) is sleeved on first slide bar (13).
3. according to the said high-pressure compressor rectifier of claim 2 inner diameter measuring device; It is characterized in that also comprising first balancing spring (27-1); First balancing spring is two; The upper end of two balancing springs respectively be fixed on first slide on peg (31) be connected, the lower end of two balancing springs is connected with the first his-and-hers watches body (25-1) respectively.
4. according to claim 2 or 3 said high-pressure compressor rectifier inner diameter measuring devices, it is characterized in that the pilot hole two ends that the first table folder (23-1) upward is provided with are provided with first orienting sleeve (19-1).
5. according to claim 2 or 3 said high-pressure compressor rectifier inner diameter measuring devices, it is characterized in that first latch assembly is made up of stop pin (33), pull bar (34), clamp nut (35) and pull bar lining (36).
6. according to the said high-pressure compressor rectifier of claim 1 inner diameter measuring device, it is characterized in that second slip pipe (28) and second slide bar (29) and second measuring head (16-2), second table folder (23-2), second guide rod (24-2), second meter (20-2), the second his-and-hers watches body (25-5) and second retainer spring (17-2) that second measuring mechanism (10) comprises that the length and the part internal diameter of surveying are complementary;
Second slip pipe (28) is inserted in the sleeve pipe of second slide (6) setting, and is fastening through second latch assembly, spacing through the 3rd anti-rotation spacer pin (11-3); Second slide bar (29) is inserted in second slip pipe (28), and (14-3) is fastening through the 3rd lock-screw, and is spacing through the 4th anti-rotation spacer pin (11-4); The second his-and-hers watches body (25-2) is installed on second slip pipe (28); The upper end of second guide rod (24-2) is fixed on the second his-and-hers watches body; The second table folder (23-2) is " Z " font structure; Pilot hole through being provided with on it is sleeved on second guide rod (24-2), and is spacing through the second slip-off preventing part (18-2) that is installed in second guide rod (24-2) lower end, through the 4th lock-screw (14-4) the second table folder (23-2) linked into an integrated entity with second slide bar (29); Second meter (20-2) is installed on the second table folder (23-2), and the center line of its table bar is parallel with the center line of second guide rod; Second measuring head (16-2) is installed in the lower end of second slide bar (29), and second retainer spring (17-2) is sleeved on second slide bar (29).
7. according to the said high-pressure compressor rectifier of claim 6 inner diameter measuring device; It is characterized in that also comprising second balancing spring (27-2); Second balancing spring is two; The upper end of two balancing springs respectively be fixed on second slide on peg (31) be connected, the lower end of two balancing springs is connected with the second his-and-hers watches body (25-2) respectively.
8. according to claim 6 or 7 said high-pressure compressor rectifier inner diameter measuring devices, it is characterized in that the pilot hole two ends that the second table folder (23-2) upward is provided with are provided with second orienting sleeve (19-2).
9. according to claim 6 or 7 said high-pressure compressor rectifier inner diameter measuring devices, it is characterized in that second latch assembly is made up of stop pin (33), pull bar (34), clamp nut (35) and pull bar lining (36).
10. according to claim 1 or 2 or 6 said high-pressure compressor rectifier inner diameter measuring devices, it is characterized in that first slide (4) is provided with first and handles knob (9-1), second slide (6) is provided with second handle knob (9-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205671235U CN202471039U (en) | 2011-12-30 | 2011-12-30 | Apparatus for measuring inner diameter of high pressure compressor rectifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205671235U CN202471039U (en) | 2011-12-30 | 2011-12-30 | Apparatus for measuring inner diameter of high pressure compressor rectifier |
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| Publication Number | Publication Date |
|---|---|
| CN202471039U true CN202471039U (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205671235U Expired - Fee Related CN202471039U (en) | 2011-12-30 | 2011-12-30 | Apparatus for measuring inner diameter of high pressure compressor rectifier |
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| CN (1) | CN202471039U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519414A (en) * | 2011-12-30 | 2012-06-27 | 成都发动机（集团）有限公司 | Inner diameter measurement device for commutator of high-pressure compressor |
-
2011
- 2011-12-30 CN CN2011205671235U patent/CN202471039U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519414A (en) * | 2011-12-30 | 2012-06-27 | 成都发动机（集团）有限公司 | Inner diameter measurement device for commutator of high-pressure compressor |
| CN102519414B (en) * | 2011-12-30 | 2014-02-12 | 成都发动机（集团）有限公司 | Inner diameter measurement device for commutator of high-pressure compressor |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20131230 |