CN109367814B - Load diffuser blade damage condition inspection tool and detection method - Google Patents
Load diffuser blade damage condition inspection tool and detection method Download PDFInfo
- Publication number
- CN109367814B CN109367814B CN201811264118.XA CN201811264118A CN109367814B CN 109367814 B CN109367814 B CN 109367814B CN 201811264118 A CN201811264118 A CN 201811264118A CN 109367814 B CN109367814 B CN 109367814B
- Authority
- CN
- China
- Prior art keywords
- blade
- measuring rod
- tool
- rod
- detected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/40—Maintaining or repairing aircraft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/60—Testing or inspecting aircraft components or systems
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Transportation (AREA)
- Aviation & Aerospace Engineering (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a load diffuser blade damage condition checking tool and a detection method, wherein the checking tool is provided with an arc rod, the diameter of the inner arc surface of the arc rod is equal to the diameter of the circumference of the outermost end of a blade, a measuring rod and a clamping block are fixedly arranged on the inner arc surface, a marker post extending forwards is arranged on the end surface of the measuring rod far away from the arc rod, the total length of the measuring rod and the marker post after being added is equal to the length of the blade, and the distance between the clamping block and the measuring rod is corresponding to the thickness of the outer end of the blade; when using detection tool to detect, the inner arc face of arc pole supports and leans on the outer end of blade, and the measuring stick extends along the blade and with the blade laminating, and the outer end of blade is located between fixture block and the measuring stick, and with detection tool limited on the blade through the fixture block, through the relation between blade and measuring stick and the reference pole, can accurately, judge the wind erosion condition of the blade front end that needs to detect fast.
Description
Technical Field
The invention relates to the technical field of aircraft maintenance, in particular to a tool for detecting damage condition of blades of a load diffuser of an aviation Auxiliary Power Unit (APU) and a detection method for detecting by using the tool.
Background
The auxiliary power unit (auxliarypowerunit) has the main function of providing power and air supply for the aircraft on the ground and in the air. The Boeing 737 series or the air passenger A320 series of aircrafts are provided with 131-9 type auxiliary power devices, and the aircrafts with the two types are the two types with the largest global fleet regulation models at the present stage, so that a large number of 131-9 type auxiliary power devices are sent to a repair shop for repair every year.
During the repair process, the failure rate of the load section diffuser (part number 3827054-1/-2) of the auxiliary power unit is very high, and the load diffuser blades need to be detected during maintenance. The repair method for damages such as wind erosion and scratch to the leading edge of the load diffuser blade is described in the manufacturer's manual, as described in the manual: the front edge wind erosion of the blade is not more than 1mm, and the blade can be continuously used, but if an inclined plane appears, the blade is required to be polished flat and then is continuously used; if wind erosion exceeds 1mm, repair is required by replacing the leading edge blade.
As shown in fig. 1, the load diffuser includes an upper ring plate, a lower ring plate, and a plurality of blades 21 (the upper ring plate and the lower ring plate are not shown in the drawing), the blades 21 are disposed between the upper ring plate and the lower ring plate, the blades 21 are uniformly arranged in a circumferential direction, and outermost ends of the blades 21 are located on the same circumference. The space between two adjacent blades in the structure is narrow, a conventional measuring tool cannot extend into the space, so that the conventional measuring tool cannot detect the space, the size of the blade corroded by wind is difficult to judge by naked eyes, and the blade corroded by wind is difficult to repair by selecting a correct repair mode. For the detection of the blades of the load diffuser, the manufacturer does not provide a special measuring tool, which brings great trouble to the detection work. Therefore, in detecting the 131-9 APU load diffuser, it is highly desirable to invent a rapid and accurate detection tool to ensure our detection quality and guide our repair scheme.
Disclosure of Invention
The first technical problem to be solved by the invention is to provide a tool for checking damage condition of blades of a load diffuser.
The second technical problem to be solved by the invention is to provide a detection method for detecting the damage condition of the blades of the load diffuser by using a detection tool.
The invention can rapidly and accurately detect the damage condition of the blades of the load diffuser.
The first technical problem is solved, and the technical scheme adopted by the invention is as follows:
the utility model provides a load diffuser blade damage condition inspection tool, load diffuser includes the ring board, lower ring board and a plurality of blades, the blade sets up between ring board and lower ring board, the blade is evenly arranged according to the circumferencial direction, the outermost of blade is located same circumference, load diffuser blade damage condition inspection tool is equipped with the arc pole, the diameter of the interior arc face of arc pole equals with the diameter of the circumference that the outermost of blade is located, fixedly on the interior arc face be equipped with measuring rod and fixture block, be equipped with the mark post that extends forward on the terminal surface of keeping away from the arc pole of measuring rod, total length after measuring rod and mark post add equals with the length of blade, interval between fixture block and the measuring rod corresponds with the outer end thickness of blade; when using detection tool to detect, the inner arc face of arc pole supports and leans on the outer end of blade, and the measuring stick extends along the blade and with the blade laminating, and the outer end of blade is located between fixture block and the measuring stick, passes through the fixture block with detection tool definition on the blade.
Further, the height of the marker post is smaller than the height of the measuring rod, so that a tangential plane is formed.
Further, the length of the label is 1mm.
Further, the cross section of measuring stick is square, is equipped with the chamfer at the planar side of measuring stick and blade laminating.
Further, the side of the measuring rod is covered with red dye.
Further, a handle for conveniently using the detection tool is arranged on the outer arc surface of the arc-shaped rod.
Further, the radius of the inner arc surface of the arc-shaped rod is 154.61mm, the length of the measuring rod is 83.14mm, and the overall thickness of the detecting tool is 7.50mm.
Further, the height of the marker post is different from the height of the measuring rod by 0.5mm.
The second technical problem is solved, and the technical scheme adopted by the invention is as follows:
the detection method for detecting the damage condition of the load diffuser blade by using the detection tool is characterized by comprising the following steps of:
s1: inserting a measuring rod into a gap between a blade to be detected and an adjacent blade from the outer ring side of the load diffuser, and finally enabling the measuring rod to be attached to the blade to be detected, wherein at the moment, the inner arc surface of the arc rod is abutted against the outer end of the blade, the outer end of the blade to be detected is positioned between a clamping block and the measuring rod, and a detection tool is limited on the blade to be detected through the clamping block;
s2: observing the blades to be detected from the inner ring side of the load diffuser; when the front end face of the marker post is level with the end face of the front edge of the blade to be detected, the front edge of the blade to be detected can be judged to be undamaged; when a part of the marker post is exposed from the front edge of the blade to be detected, the front edge of the blade to be detected can be judged to be slightly damaged and can be used continuously, but if an inclined plane appears, the blade is required to be polished flat and then is used continuously; when the marker post is exposed from the front edge of the blade to be detected, the blade to be detected can be judged to be repaired by replacing the blade;
s3: steps S1 and S2 are cycled to complete the detection of all vanes of the load diffuser.
Further, before step S1, the inspection tool is inspected to check whether there is a collision damage to the load diffuser blade damage condition inspection tool.
Compared with the prior art, the invention has the following beneficial effects:
1. the workman can be fast, accurate judgement blade damage condition through the relation between comparison blade and measuring stick and the marker post to judge whether the blade needs to repair fast, if need repair what mode needs to adopt repair, saved the time, improved work efficiency.
2. The invention can accurately judge the fault type, is more reliable and reliable than the single visual inspection, is beneficial to improving the inspection quality of parts and ensures the maintenance quality.
3. The invention has the advantages of practicality, simple operation, easy learning and use, convenient popularization and saving of learning cost and time cost.
4. The invention can accurately judge the fault damage condition of the parts, avoid the condition that unnecessary parts are repaired abroad, and save the repair cost of the parts.
5. The method of the present invention can be generalized to all types of APU diffusers, and even to engine diffusers.
Drawings
FIG. 1 is a schematic structural view of a load diffuser;
FIG. 2 is a schematic perspective view of the present invention;
fig. 3 is a schematic diagram of the front view structure of the present invention.
The meaning of the reference numerals in the figures:
1-a detection tool; 11-a handle; 12-arc-shaped rods; 13-an inner arc surface; 14-a marker post; 17-cutting; 18-measuring rod; 19-clamping blocks; 2-load diffuser; 21-leaf; 23-circumference.
Detailed Description
The invention is further described below with reference to examples.
As shown in fig. 1, the load diffuser 2 includes an upper ring plate, a lower ring plate, and a plurality of blades 21 (the upper ring plate and the lower ring plate are not shown in the figure), the blades 21 are disposed between the upper ring plate and the lower ring plate, the blades 21 are uniformly arranged along the circumferential direction, and the outermost ends of the blades 21 are located on the same circumference 23.
As shown in fig. 2 and 3, the tool 1 for checking damage to blades of a load diffuser in this embodiment is provided with an arc rod 12, the diameter of an inner arc surface 13 of the arc rod 12 is equal to the diameter of a circumference 23 where the outermost end of a blade 21 is located, the inner arc surface 13 of the arc rod is used as a reference arc surface, a measuring rod 18 and a clamping block 19 are fixedly arranged on the inner arc surface 13, a marker post 14 extending forward is arranged on an end surface, far away from the arc rod 12, of the measuring rod 18, and the marker post 14, and the total length after the sum of the measuring rod 18 and the marker post 14 is equal to the length of the blade 21, so that the damage to the blade 21 can be rapidly and accurately judged by comparing the relationship between the blade 21 and the measuring rod 18 and the marker post 14. The distance between the clamping block 19 and the measuring rod 18 corresponds to the thickness of the outer end of the blade 21. The length of the post 14 is determined by the dimensions described in the manufacturer's manual for determining blade erosion.
When the detection tool 1 is used for detection, the measuring rod 18 is inserted into a gap between a blade to be detected and an adjacent blade from the outer ring side of the load diffuser 2, the inner arc surface 13 of the arc rod 12 abuts against the outer end of the blade 21, the measuring rod 18 extends along the blade 21 to be detected and is attached to the blade 21 to be detected, the outer end of the blade 21 to be detected is located between the clamping block 19 and the measuring rod 18, and the detection tool 1 is limited on the blade 21 to be detected through the clamping block 19, so that accurate positioning is realized, and accurate detection is ensured. After the detection tool 1 is limited on the blade 21 to be detected, the relationship between the blade to be detected, the measuring rod 18 and the marker post 14 is observed from the inner ring side of the observation load diffuser, and then the wind erosion condition of the front end of the blade 21 to be detected can be accurately and rapidly judged, so that a reasonable repair mode can be rapidly and accurately selected.
In order to make it easier to observe the marker post 14, the marker post 14 of this embodiment has a height that is less than the height of the measuring rod 18, as shown in fig. 3, to form a cut surface 17.
In order to meet the specifications of the manufacturer's manual described in the background art, the length of the post 14 of the present embodiment is designed to be 1mm. Of course, the length of the post 14 may vary according to the specifications of different manufacturer's manuals.
Sometimes, some solder remains on the welding edges on both sides of the blade 21, so that the measuring rod 18 cannot be completely attached to the blade 21. In order to solve the problem that the measurement rod 18 cannot be completely attached, the cross section of the measurement rod 18 of this embodiment is square, so that the measurement rod 18 can be better attached to the blade 21 in a flat manner, and a chamfer (not shown in the figure) is provided on the side of the plane of the measurement rod 18 attached to the blade, so that the measurement rod can avoid the solder remaining on the side of the blade.
The side surface of the measuring rod 18 is covered with red dye for warning and reminding, and can be better distinguished from a marker post, and the plane of the measuring rod 18, which is used for being attached to the blade 21, is covered with red dye in the embodiment. The plane of the measuring rod 18 corresponding to the tangential plane 17 is a plane for fitting the blade 21, and the plane for fitting the blade 21 serves as a reference plane.
In order to better and more conveniently use the detection tool, the embodiment is provided with the handle 11 on the outer arc surface of the arc-shaped rod 12, and a worker can better use the detection tool by holding the handle 11. A sanding treatment may also be applied to the handle 11 to increase friction.
The plane of the measuring rod 18 facing the fixture block 19 and the plane of the fixture block 19 facing the measuring rod 18 of the present embodiment are parallel to each other.
For more practical use, it is preferable that the radius of the inner arc surface 13 of the arc-shaped rod 12 is 154.61mm, the length of the measuring rod 18 is 83.14mm, the overall thickness of the detection tool 1 is 7.50mm, the height of the marker post 14 is different from the height of the measuring rod 18 by 0.5mm, the radius of the outer arc surface of the arc-shaped rod 12 is 164.61mm, and the chamfer of the side edge of the measuring rod 18 is 0.5mm chamfer. The linear distance between the connecting edge of the measuring rod 18 near the clamping block 19 at the connection with the inner arc surface 13 and the connecting edge of the clamping block 19 near the measuring rod 18 at the connection with the inner arc surface 13 is 10.10mm, namely, the linear distance between the upper connecting plate of the measuring rod 18 at the connection with the inner arc surface 13 and the lower connecting edge of the clamping block 19 at the connection with the inner arc surface 13 is 10.10mm as shown in fig. 3.
The inspection tool 1 of the present embodiment is made of a stainless steel material.
The embodiment also discloses a detection method for detecting by using the detection tool, which comprises the following steps:
s1: inserting a measuring rod 18 into a gap between a blade to be detected and an adjacent blade from the outer ring side of the load diffuser 2, and finally enabling the measuring rod 18 to be attached to the blade 21 to be detected, wherein the inner arc surface 13 of the arc rod 13 abuts against the outer end of the blade 21, the outer end of the blade 21 to be detected is positioned between a clamping block 19 and the measuring rod 18, and the detecting tool 1 is limited on the blade 21 to be detected through the clamping block 19;
s2: the blades 21 to be detected are observed from the inner ring side of the load diffuser 2; when the front end face of the marker post 14 is flush with the end face of the front edge of the blade to be detected, the front edge of the blade to be detected can be judged to be undamaged; when a part of the marker post 14 is exposed from the front edge of the blade to be detected, the front edge of the blade to be detected can be judged to be slightly damaged and can be used continuously, but if an inclined surface appears, the blade is required to be polished flat and then is used continuously; when the post 14 is exposed from the leading edge of the blade to be inspected, it is determined that the blade to be inspected must be repaired by replacing the blade.
S3: steps S1 and S2 are cycled to complete the detection of all vanes of the load diffuser.
In order to better ensure that the detection does not have accidents, the detection tool 1 can be checked before the step S1 to check whether the detection tool 1 has the collision damage, and if the detection tool 1 has the collision damage, the detection tool 1 needs to be replaced completely for detection.
The above-mentioned embodiments of the present invention are not intended to limit the scope of the present invention, and the embodiments of the present invention are not limited thereto, and all kinds of modifications, substitutions or alterations made to the above-mentioned structures of the present invention according to the above-mentioned general knowledge and conventional means of the art without departing from the basic technical ideas of the present invention shall fall within the scope of the present invention.
Claims (10)
1. The utility model provides a load diffuser blade damage condition inspection tool, load diffuser includes ring board, lower ring board and a plurality of blades, the blade sets up between last ring board and lower ring board, the blade is evenly arranged according to the circumferencial direction, the outermost end of blade is located same circumference, its characterized in that: the tool for checking the damage condition of the blades of the load diffuser is provided with an arc-shaped rod, the diameter of the inner arc-shaped surface of the arc-shaped rod is equal to the diameter of the circumference of the outermost end of the blades, a measuring rod and a clamping block are fixedly arranged on the inner arc-shaped surface, a marker post extending forwards is arranged on the end face, far away from the arc-shaped rod, of the measuring rod, the total length of the measuring rod and the marker post after being added is equal to the length of the blades, and the distance between the clamping block and the measuring rod is corresponding to the thickness of the outer ends of the blades; when the detection tool is used for detection, the inner arc surface of the arc-shaped rod abuts against the outer end of the blade, the measuring rod extends along the blade and is attached to the blade, the outer end of the blade is located between the clamping block and the measuring rod, and the detection tool is limited on the blade through the clamping block.
2. The load diffuser blade damage check tool of claim 1, wherein: the height of the marker post is smaller than that of the measuring rod, so that a tangential plane is formed.
3. The load diffuser blade damage check tool of claim 1, wherein: the length of the standard rod is 1mm.
4. The load diffuser blade damage check tool of claim 1, wherein: the cross section of the measuring rod is square, and a chamfer is arranged on the side edge of the plane, attached to the blade, of the measuring rod.
5. The load diffuser blade damage check tool of claim 1, wherein: the side of the measuring rod is covered with red dye.
6. The load diffuser blade damage check tool of claim 1, wherein: the outer arc surface of the arc-shaped rod is provided with a handle for conveniently using the detection tool.
7. The load diffuser blade damage check tool of claim 1, wherein: the radius of the inner arc surface of the arc-shaped rod is 154.61mm, the length of the measuring rod is 83.14mm, and the overall thickness of the detecting tool is 7.50mm.
8. The load diffuser blade damage condition inspection tool of claim 2, wherein: the height of the marker post is different from the height of the measuring rod by 0.5mm.
9. A detection method for detecting damage to a blade of a load diffuser according to any one of claims 1 to 8, comprising the steps of:
s1: inserting the measuring rod into a gap between a blade to be detected and an adjacent blade from the outer ring side of the load diffuser, and finally enabling the measuring rod to be attached to the blade to be detected, wherein at the moment, the inner arc surface of the arc rod abuts against the outer end of the blade, the outer end of the blade to be detected is positioned between a clamping block and the measuring rod, and the detecting tool is limited on the blade to be detected through the clamping block;
s2: observing the blades to be detected from the inner ring side of the load diffuser; when the front end face of the marker post is flush with the end face of the front edge of the blade to be detected, the front edge of the blade to be detected can be judged to be undamaged; when a part of the marker post is exposed from the front edge of the blade to be detected, the front edge of the blade to be detected can be judged to be slightly damaged and can be used continuously, but if an inclined plane appears, the blade is required to be ground flat and then is used continuously; when the marker post is exposed from the front edge of the blade to be detected, the blade to be detected can be judged to be repaired by replacing the blade;
s3: steps S1 and S2 are cycled to complete the detection of all vanes of the load diffuser.
10. The method of claim 9, wherein: and (2) checking the detection tool before the step S1, and checking whether the load diffuser blade damage condition checking tool has a collision damage place or not.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811264118.XA CN109367814B (en) | 2018-10-26 | 2018-10-26 | Load diffuser blade damage condition inspection tool and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811264118.XA CN109367814B (en) | 2018-10-26 | 2018-10-26 | Load diffuser blade damage condition inspection tool and detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109367814A CN109367814A (en) | 2019-02-22 |
| CN109367814B true CN109367814B (en) | 2023-07-21 |
Family
ID=65390198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811264118.XA Active CN109367814B (en) | 2018-10-26 | 2018-10-26 | Load diffuser blade damage condition inspection tool and detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109367814B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0935557A1 (en) * | 1996-11-07 | 1999-08-18 | ZF Luftfahrttechnik GmbH | Device and method for measuring and calibrating the control angles and control forces of a rotor blade |
| JP2001255133A (en) * | 2000-03-10 | 2001-09-21 | Kurimoto Ltd | Device for inspecting mixing/kneading blade |
| JP2004044423A (en) * | 2002-07-09 | 2004-02-12 | Ishikawajima Harima Heavy Ind Co Ltd | Creep detection method for moving blade, and moving blade with creep detection mark |
| JP2012032195A (en) * | 2010-07-29 | 2012-02-16 | Tokyo Electric Power Co Inc:The | Flaw detection method of turbine blade |
| US8240976B1 (en) * | 2009-03-18 | 2012-08-14 | Ebara International Corp. | Methods and apparatus for centrifugal pumps utilizing head curve |
| CN108489437A (en) * | 2018-02-09 | 2018-09-04 | 西北工业大学 | Multiple material blade inlet edge titanium alloy reinforces side three-dimensional coordinates measurement fixture |
| CN209321286U (en) * | 2018-10-26 | 2019-08-30 | 中国南方航空股份有限公司 | A kind of load diffuser vane degree of impairment detection instrument |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015224375A1 (en) * | 2015-12-04 | 2017-06-08 | Mtu Aero Engines Gmbh | Method of testing a blade unit |
-
2018
- 2018-10-26 CN CN201811264118.XA patent/CN109367814B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0935557A1 (en) * | 1996-11-07 | 1999-08-18 | ZF Luftfahrttechnik GmbH | Device and method for measuring and calibrating the control angles and control forces of a rotor blade |
| JP2001255133A (en) * | 2000-03-10 | 2001-09-21 | Kurimoto Ltd | Device for inspecting mixing/kneading blade |
| JP2004044423A (en) * | 2002-07-09 | 2004-02-12 | Ishikawajima Harima Heavy Ind Co Ltd | Creep detection method for moving blade, and moving blade with creep detection mark |
| US8240976B1 (en) * | 2009-03-18 | 2012-08-14 | Ebara International Corp. | Methods and apparatus for centrifugal pumps utilizing head curve |
| JP2012032195A (en) * | 2010-07-29 | 2012-02-16 | Tokyo Electric Power Co Inc:The | Flaw detection method of turbine blade |
| CN108489437A (en) * | 2018-02-09 | 2018-09-04 | 西北工业大学 | Multiple material blade inlet edge titanium alloy reinforces side three-dimensional coordinates measurement fixture |
| CN209321286U (en) * | 2018-10-26 | 2019-08-30 | 中国南方航空股份有限公司 | A kind of load diffuser vane degree of impairment detection instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109367814A (en) | 2019-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20130123377A (en) | Quick composite repair template tool and method | |
| CN204286266U (en) | A kind of omnipotent flexible checking implement | |
| CN109367814B (en) | Load diffuser blade damage condition inspection tool and detection method | |
| CN109398750B (en) | Tool and method for detecting damage condition of main blade of power diffuser | |
| CN209321288U (en) | A kind of dynamic dispenser primary blades degree of impairment detection instrument | |
| CN205300466U (en) | Universal joint angle clearance detection device | |
| CN209321286U (en) | A kind of load diffuser vane degree of impairment detection instrument | |
| CN215572777U (en) | Aircraft skin curved surface normal direction hole position degree detects frock | |
| CN105674838A (en) | Motor radiating fin checking fixture | |
| CN112658612B (en) | Manufacturing and detecting process method of nuclear main pump piston ring of nuclear power station | |
| CN211953931U (en) | Measuring tool for detecting moving blade with water outlet hole | |
| CN219869467U (en) | Blade shroud contour repair detection template | |
| WO2021082816A1 (en) | Eddy current detection device and method for water turbine flow passage component plane | |
| CN210220933U (en) | Profile tolerance testing fixture | |
| CN210400258U (en) | Portable roundness detection sample plate | |
| CN207936871U (en) | A kind of broken 45 ° of supporting sleeve portion thread measurement measurer of multi-cylinder circular cone | |
| CN216869404U (en) | Size detection tool for air pipe flange bolt hole | |
| CN111381105A (en) | Overhauling method of electric connector of rail electric car | |
| CN110171578A (en) | A kind of undercarriage high-strength steel part overhauls method | |
| CN213515438U (en) | Parallelism inspection device | |
| CN214502328U (en) | Dome valve overhauls device | |
| CN214537668U (en) | Detection tool for detecting automobile air outlet panel | |
| CN218723650U (en) | Special detection device for electric vehicle trailer hook main shaft | |
| CN210180328U (en) | Teaching is with seven-piece puzzle utensil of examining | |
| CN215766849U (en) | Device for quickly and accurately measuring whether chamfer size is qualified or not |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |