CN104749031A - Measurement jig and measurement method for rotary blade - Google Patents
Measurement jig and measurement method for rotary blade Download PDFInfo
- Publication number
- CN104749031A CN104749031A CN201510175322.4A CN201510175322A CN104749031A CN 104749031 A CN104749031 A CN 104749031A CN 201510175322 A CN201510175322 A CN 201510175322A CN 104749031 A CN104749031 A CN 104749031A
- Authority
- CN
- China
- Prior art keywords
- rotating vane
- measured
- tension
- blade
- pressure
- 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.)
- Granted
Links
Abstract
The invention provides a measurement jig for a rotary blade. The measurement jig for the rotary blade comprises a blade clamping device, a pressure measurement device and a tension measurement device, wherein the blade clamping device comprises a blade tenon clamping block, a spring and a frame body; the slantwise side surface of the blade tenon clamping block contacts with the blade tenon of the rotary blade to be measured, the pressure measurement device comprises a pressure sensor and a pressure application device, and the pressure sensor is arranged between the blade tenon and the pressure application device; the spring is connected with the tension measurement device, the tension measurement device comprises a tension sensor and a tension application device, wherein the tension sensor is arranged between the tension application device and the spring; the pressure application device and the tension application device are arranged on the frame body respectively. With the adoption of the device and the method provided by the invention, researches for the vibration condition of the blade to be measured under different tension actions on the blade and different clamping forces on the blade tenon are realized.
Description
Technical field
The invention belongs to mechanical test field, be specifically related to a kind of rotating vane measured material and measuring method.
Background technology
Rotating machinery is all widely used at modern Aviation, navigation and energy field, and blade is as one of the main parts size of rotating machinery, direct to medium acting at work, plays a part switching energy, is thus described as " heart " of rotating machinery.Blade is in high speed rotational operation process, and the quality due to blade self causes producing powerful centrifugal force load, inevitably has the alternate load of vibration in blade rotary process in addition, makes blade produce fatigue crack under certain conditions.Under the interaction of centrifugal force and vibration, crackle continues to expand, until when remaining load insufficient area bears the stress that centrifugal force causes, blade will fracture, and the fragment fractureed may fly out outside casing, or rest blade of injuring, and cause major accident.Therefore, in the process manufacturing and designing blade, must check the static strength of blade, fatigue resistance and security, the vibration parameters of blade is measured, study some characteristics in its vibration processes, especially to the examination of high speed rotational blade fatigue resistance, dynamics parameter and the measurement of centrifugal tension that produces in high-speed rotation thereof, for raising design level, guarantee to equip steady in a long-termly to run, to improve maintenance efficiency significant.
At present, because most of rotating machinery inner structure is complicated, and operational process Leaf is in High Rotation Speed state, existing technological means is also difficult to realize the measurement directly to the examination of rotating vane fatigue resistance and centrifugal tension, and the security that the method only by theory calculate and numerical analysis carries out this respect is checked.In order to understand dynamics and the mechanism of rotating vane further, explore the rule of the impaired destruction of blade, need urgently to carry out fatigue resistance examination and centrifugal tension measurement to rotating vane, manufacturing and designing for improvement of blade, avoids the generation of security incident.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of rotating vane measured material and measuring method, can realize to rotating vane to be measured under different pulling force effect and leaf tenon be subject to the research of different clamping force effect lower blade Vibration Condition.
The present invention for solving the problems of the technologies described above taked technical scheme is: a kind of rotating vane measured material, it is characterized in that: it comprises blade clamp device, device for pressure measurement and tension measuring device, its Leaf clamp device comprises leaf tenon clamp, the spring be connected with vane tip and support body;
The leaf joggle of leaf tenon clamp inclined side and rotating vane to be measured touches, and the two angle of inclination is equal, and device for pressure measurement comprises pressure transducer and pressure applying means, and wherein pressure transducer is arranged between leaf tenon and pressure applying means;
Spring is connected with described tension measuring device, and tension measuring device comprises pulling force sensor and tension application device, and wherein pulling force sensor is arranged between tension application device and spring;
Pressure applying means and tension application device are separately positioned on support body.
By such scheme, it also comprises the vibration transducer be arranged on blade.
By such scheme, described support body comprises base plate, crossbeam, side plate and the back up pad for connecting bottom board and crossbeam, wherein said pressure applying means is arranged on base plate, and described tension application device is arranged on crossbeam, and side plate is arranged on described device for pressure measurement both sides.
By such scheme, the push rod of described pressure transducer withstands bottom leaf tenon by one piece of leaf tenon pad, and pressure applying means is withstood pressure by one piece of pressure transducer pad the bottom of sensor.
The measuring method utilizing above-mentioned rotating vane measured material to realize, is characterized in that: it comprises the following steps:
Adopt pressure applying means to apply different clamping forces to leaf tenon, measure clamping force size by pressure transducer, due to clamping force that the effect of rotating vane centrifugal tension to be measured makes leaf tenon produce in simulation high-speed rotation; In simulation process, knock the one side that rotating vane to be measured does not arrange vibration transducer, measure the vibration frequency of rotating vane to be measured, investigate the vibration characteristics of leaf tenon rotating vane to be measured under different clamping force effect;
Apply different pulling force to rotating vane to be measured by tension application device, measure pulling force size by pulling force sensor, simulate the centrifugal tension to rotating vane to be measured; In simulation process, knock the one side that rotating vane to be measured does not arrange vibration transducer, measure the vibration frequency of rotating vane to be measured under different pulling force effect, the relation between research vibration frequency and pulling force.
Beneficial effect of the present invention is:
1, by adopting apparatus of the present invention and method, achieve in high-speed rotation because the effect of blade centrifugal tension makes leaf tenon produce the simulation of different clamping force, and the simulation to rotating vane centrifugal tension to be measured, thus achieve to rotating vane to be measured under different pulling force effect and leaf tenon be subject to the research of different clamping force effect lower blade Vibration Condition.
2, leaf tenon clamp is demountable, can install different leaf tenon clamps, can be realized the object measured multiple measuring object by a fixture according to different leaf tenons.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the invention
Fig. 2 is the vertical view of Fig. 1
Fig. 3 is the AA sectional view of Fig. 2
Fig. 4 is the structure three-dimensional figure of one embodiment of the invention
In figure: 1-base plate, 2-side plate, 3-leaf tenon clamp, 5-blade, 6-leaf tenon cushion block, 7-pressure transducer, 8-pressure transducer cushion block, 9-threaded mandrel, 10-back up pad, 11-crossbeam, 12 pulling force sensors, 13-setting nut, 14-spring, 16-baffle plate.
Embodiment
Below in conjunction with instantiation and accompanying drawing, the present invention will be further described.
As shown in Figures 1 to 4, a kind of rotating vane measured material, comprises blade clamp device, device for pressure measurement and tension measuring device, and its Leaf clamp device comprises leaf tenon clamp 3, the spring 14 be connected with blade 5 top and support body; The leaf joggle of leaf tenon clamp 3 inclined side and rotating vane to be measured touches, and the two angle of inclination is equal, and device for pressure measurement comprises pressure transducer 7 and pressure applying means, and wherein pressure transducer 7 is arranged between leaf tenon and pressure applying means; Spring 14 is connected with described tension measuring device, and tension measuring device comprises pulling force sensor 12 and tension application device, and wherein pulling force sensor 12 is arranged between tension application device and spring 14; Pressure applying means and tension application device are separately positioned on support body.
It also comprises the vibration transducer be arranged on blade 5, and preferably, fiber-optic grating sensor selected by this vibration transducer.
Described support body comprises base plate 1, crossbeam 11, side plate 2 and the back up pad 10 for connecting bottom board 1 and crossbeam 11, wherein said pressure applying means is arranged on base plate 1, described tension application device is arranged on crossbeam 11, and side plate 2 is arranged on described device for pressure measurement both sides.
The push rod of described pressure transducer 7 withstands bottom leaf tenon by one piece of leaf tenon pad 6, and pressure applying means is withstood pressure by one piece of pressure transducer pad 8 bottom of sensor 7.
In order to make leaf tenon clamp 3 better can play clamping action, between leaf tenon clamp 3 and back up pad 10, be provided with baffle plate 16.
In the present embodiment, described pressure applying means is threaded mandrel 9; Described tension application device is the screw rod be connected with pulling force sensor, and screw rod through crossbeam, and is provided with setting nut 13 in the outside of crossbeam.
Utilize the measuring method that above-mentioned rotating vane measured material realizes, it comprises the following steps:
Adopt pressure applying means to apply different clamping forces to leaf tenon, measure clamping force size by pressure transducer, due to clamping force that the effect of rotating vane centrifugal tension to be measured makes leaf tenon produce in simulation high-speed rotation; In simulation process, knock the one side that rotating vane to be measured does not arrange vibration transducer, measure the vibration frequency of rotating vane to be measured, investigate the vibration characteristics of leaf tenon rotating vane to be measured under different clamping force effect;
Apply different pulling force to rotating vane to be measured by tension application device, measure pulling force size by pulling force sensor, simulate the centrifugal tension to rotating vane to be measured; In simulation process, knock the one side that rotating vane to be measured does not arrange vibration transducer, measure the vibration frequency of rotating vane to be measured under different pulling force effect, the relation between research vibration frequency and pulling force.
Further, in the present embodiment, each parts of support body are bolted.The pitch angle size of two pieces of detachable leaf tenon clamp inclined sides is identical with leaf tenon laterally inclined angle size.The laterally inclined angle of different blade and blade tenons is different, can change different leaf tenon clamps.The push rod of two pressure transducers withstands bottom leaf tenon by one piece of leaf tenon pad, and threaded mandrel withstands the bottom of two pressure transducers by one piece of pressure transducer pad.Regulate the length of threaded mandrel, apply pressure to bottom leaf tenon, dip plane and the leaf tenon base plane of two leaf tenon clamps form a triangle space, thus are fixed to clamp by leaf tenon.Push rod nut can be measured by pressure transducer to applied pressure bottom leaf tenon and obtain, and the pitch angle of known leaf tenon side again, thus can by calculating the stressed size of leaf tenon two sides.
Vane tip is connected with pulling force sensor by spring, pulling force sensor is fixed on crossbeam block by the screw rod that is welded on bottom pulling force sensor, screw rod can be regulated by nut, thus apply pulling force to spring, pulling force acts on vane tip, and the size of pulling force is measured by pulling force sensor.The web member of vane tip uses the mode of spot welding that one piece of foraminate aluminum lug of band is welded on vane tip, and carbine passes from hole, thus realizes the connection of blade and spring.
Blade, in high-speed rotation, produces huge centrifugal tension, and two of leaf tenon sides are tightly pressed on two faces of tongue-and-groove by centrifugal tension.The centrifugal tension that different rotating speeds produces is not identical yet, and the clamping force that leaf tenon two sides are subject to is not identical yet, and leaf tenon is under different clamping force effects, its vibration characteristics is different, therefore, by applying different clamping forces to leaf tenon, the vibration characteristics of blade can be studied.In addition, according to rotating vane dynamic stiffening, under different centrifugal tension effects, the rigidity of blade can change, and centrifugal tension is larger, rigidity is larger, the natural frequency of vibration of blade is caused to increase, therefore, can by applying different pulling force to blade, by measuring the change of its natural frequency of vibration, the vibration characteristics of research blade.
The measuring process of rotating vane measured material provided by the invention be divided into rotating vane under different pulling force effect and leaf tenon be subject to the research of different clamping force effect lower blade Vibration Condition.The pressure survey of leaf tenon, blade tension measurement, vibration frequency of blade are measured, and different measurements realizes different objects.A kind of object: paste fiber-optic grating sensor on blade face after, be arranged on blade fixture, by regulating threaded mandrel, different pressure is applied to leaf tenon, knock the one side that blade does not paste fiber-optic grating sensor, measure vibration frequency of blade, investigate the vibration characteristics of leaf tenon at different clamping force effect lower blade.A kind of object: paste fiber-optic grating sensor on blade face, at vane tip spot welding aluminum slice lug, then by the fixture of blades installation, under the leaf tenon pressure condition determined, apply different pulling force to blade, knock the one side that blade does not paste fiber-optic grating sensor, measure the vibration frequency of blade, investigate the vibration frequency of blade under different pulling force effect, the relation between research vibration frequency and pulling force.
Claims (5)
1. a rotating vane measured material, is characterized in that: it comprises blade clamp device, device for pressure measurement and tension measuring device, and its Leaf clamp device comprises leaf tenon clamp, the spring be connected with vane tip and support body;
The leaf joggle of leaf tenon clamp inclined side and rotating vane to be measured touches, and the two angle of inclination is equal, and device for pressure measurement comprises pressure transducer and pressure applying means, and wherein pressure transducer is arranged between leaf tenon and pressure applying means;
Spring is connected with described tension measuring device, and tension measuring device comprises pulling force sensor and tension application device, and wherein pulling force sensor is arranged between tension application device and spring;
Pressure applying means and tension application device are separately positioned on support body.
2. rotating vane measured material according to claim 1, is characterized in that: it also comprises the vibration transducer be arranged on blade.
3. rotating vane measured material according to claim 1 and 2, it is characterized in that: described support body comprises base plate, crossbeam, side plate and the back up pad for connecting bottom board and crossbeam, wherein said pressure applying means is arranged on base plate, described tension application device is arranged on crossbeam, and side plate is arranged on described device for pressure measurement both sides.
4. rotating vane measured material according to claim 1 and 2, it is characterized in that: the push rod of described pressure transducer withstands bottom leaf tenon by one piece of leaf tenon pad, pressure applying means is withstood pressure by one piece of pressure transducer pad the bottom of sensor.
5. the measuring method utilizing the rotating vane measured material described in claim 1 to realize, is characterized in that: it comprises the following steps:
Adopt pressure applying means to apply different clamping forces to leaf tenon, measure clamping force size by pressure transducer, due to clamping force that the effect of rotating vane centrifugal tension to be measured makes leaf tenon produce in simulation high-speed rotation; In simulation process, knock the one side that rotating vane to be measured does not arrange vibration transducer, measure the vibration frequency of rotating vane to be measured, investigate the vibration characteristics of leaf tenon rotating vane to be measured under different clamping force effect;
Apply different pulling force to rotating vane to be measured by tension application device, measure pulling force size by pulling force sensor, simulate the centrifugal tension to rotating vane to be measured; In simulation process, knock the one side that rotating vane to be measured does not arrange vibration transducer, measure the vibration frequency of rotating vane to be measured under different pulling force effect, the relation between research vibration frequency and pulling force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510175322.4A CN104749031B (en) | 2015-04-13 | 2015-04-13 | Measurement jig and measurement method for rotary blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510175322.4A CN104749031B (en) | 2015-04-13 | 2015-04-13 | Measurement jig and measurement method for rotary blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104749031A true CN104749031A (en) | 2015-07-01 |
| CN104749031B CN104749031B (en) | 2017-05-17 |
Family
ID=53589044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510175322.4A Expired - Fee Related CN104749031B (en) | 2015-04-13 | 2015-04-13 | Measurement jig and measurement method for rotary blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104749031B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571802A (en) * | 2016-02-01 | 2016-05-11 | 苏州长菱测试技术有限公司 | Testing method and testing device for blade pretightening force |
| CN106226015A (en) * | 2016-07-01 | 2016-12-14 | 西北工业大学 | A kind of assay device of turbine disk coupled vibrations |
| CN109029808A (en) * | 2018-07-05 | 2018-12-18 | 陈俊胤 | A kind of airborne propeller dynamic tension measuring device |
| CN110196190A (en) * | 2019-05-20 | 2019-09-03 | 芜湖市爱德运输机械有限公司 | The intensity test method of helical blade |
| CN111654993A (en) * | 2020-05-22 | 2020-09-11 | 中国航空工业集团公司西安航空计算技术研究所 | Module equal-mass variable-rigidity method and module equal-mass variable-rigidity module |
| CN113316385A (en) * | 2019-01-15 | 2021-08-27 | 罗伯特·博世有限公司 | Pressure sensing device for a measuring apparatus for measuring a pressure state value of a plant sample and method for manufacturing a pressure sensing device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2081457A (en) * | 1980-08-05 | 1982-02-17 | Instron Ltd | A machine for testing materials |
| CN1928529A (en) * | 2005-09-09 | 2007-03-14 | 侯贵仓 | Test clamp for disc blade of aircraft engine |
| CN101042322A (en) * | 2007-04-29 | 2007-09-26 | 北京科技大学 | Constant Loading tension-compression test machine |
| CN201096682Y (en) * | 2007-09-30 | 2008-08-06 | 沈阳黎明航空发动机(集团)有限责任公司 | A single-axis neck leaf fatigue test clamper |
| CN101464240A (en) * | 2009-01-14 | 2009-06-24 | 北京航空航天大学 | High temperature composite fatigue loading method and apparatus for turbine disc/blade joggled joint |
| CN201555769U (en) * | 2009-12-21 | 2010-08-18 | 上海交通大学 | Tension and compression stress strain detecting device |
| DE102009036247A1 (en) * | 2009-08-05 | 2011-02-10 | Zwick Gmbh & Co. Kg | Device for performing component and material tests on samples |
| EP2662682A2 (en) * | 2012-05-10 | 2013-11-13 | Rolls-Royce plc | A method of fatigue testing a component |
| CN203705258U (en) * | 2013-12-12 | 2014-07-09 | 天津市盛佳怡电子有限公司 | Fixing tool for testing strength of wind power blade |
-
2015
- 2015-04-13 CN CN201510175322.4A patent/CN104749031B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2081457A (en) * | 1980-08-05 | 1982-02-17 | Instron Ltd | A machine for testing materials |
| CN1928529A (en) * | 2005-09-09 | 2007-03-14 | 侯贵仓 | Test clamp for disc blade of aircraft engine |
| CN101042322A (en) * | 2007-04-29 | 2007-09-26 | 北京科技大学 | Constant Loading tension-compression test machine |
| CN201096682Y (en) * | 2007-09-30 | 2008-08-06 | 沈阳黎明航空发动机(集团)有限责任公司 | A single-axis neck leaf fatigue test clamper |
| CN101464240A (en) * | 2009-01-14 | 2009-06-24 | 北京航空航天大学 | High temperature composite fatigue loading method and apparatus for turbine disc/blade joggled joint |
| DE102009036247A1 (en) * | 2009-08-05 | 2011-02-10 | Zwick Gmbh & Co. Kg | Device for performing component and material tests on samples |
| CN201555769U (en) * | 2009-12-21 | 2010-08-18 | 上海交通大学 | Tension and compression stress strain detecting device |
| EP2662682A2 (en) * | 2012-05-10 | 2013-11-13 | Rolls-Royce plc | A method of fatigue testing a component |
| CN203705258U (en) * | 2013-12-12 | 2014-07-09 | 天津市盛佳怡电子有限公司 | Fixing tool for testing strength of wind power blade |
Non-Patent Citations (1)
| Title |
|---|
| 王荣桥 等: "涡轮盘榫槽高温复合疲劳试验方案研究", 《航空动力学报》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571802A (en) * | 2016-02-01 | 2016-05-11 | 苏州长菱测试技术有限公司 | Testing method and testing device for blade pretightening force |
| CN105571802B (en) * | 2016-02-01 | 2018-01-16 | 苏州长菱测试技术有限公司 | The method of testing of blade pretightning force |
| CN106226015A (en) * | 2016-07-01 | 2016-12-14 | 西北工业大学 | A kind of assay device of turbine disk coupled vibrations |
| CN109029808A (en) * | 2018-07-05 | 2018-12-18 | 陈俊胤 | A kind of airborne propeller dynamic tension measuring device |
| CN113316385A (en) * | 2019-01-15 | 2021-08-27 | 罗伯特·博世有限公司 | Pressure sensing device for a measuring apparatus for measuring a pressure state value of a plant sample and method for manufacturing a pressure sensing device |
| US11579034B2 (en) | 2019-01-15 | 2023-02-14 | Robert Bosch Gmbh | Pressure detecting unit for a measuring device for measuring a pressure status value of a plant specimen, and method for manufacturing a pressure detecting unit |
| CN113316385B (en) * | 2019-01-15 | 2023-08-08 | 罗伯特·博世有限公司 | Pressure sensing device for a measuring apparatus for measuring a pressure state value of a plant sample and method for producing a pressure sensing device |
| CN110196190A (en) * | 2019-05-20 | 2019-09-03 | 芜湖市爱德运输机械有限公司 | The intensity test method of helical blade |
| CN110196190B (en) * | 2019-05-20 | 2022-03-08 | 芜湖市爱德运输机械有限公司 | Method for testing compressive strength of helical blade |
| CN111654993A (en) * | 2020-05-22 | 2020-09-11 | 中国航空工业集团公司西安航空计算技术研究所 | Module equal-mass variable-rigidity method and module equal-mass variable-rigidity module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104749031B (en) | 2017-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104749031A (en) | Measurement jig and measurement method for rotary blade | |
| CN104019968B (en) | A kind of pilot system testing screw blade fatigue property | |
| US9354151B2 (en) | Apparatus for four-point bend testing | |
| CN110146243B (en) | High cycle fatigue testing method for blisk | |
| US9423330B2 (en) | Method of determining the non-propagation threshold of fatigue cracks at high frequency | |
| CN104931366A (en) | Fretting fatigue testing method allowing contact load to be adjusted in real time and testing machine adopting fretting fatigue testing method | |
| CN104019970B (en) | A kind of pilot system of testing helicopter tail rotor fatigue behaviour | |
| US20190094104A1 (en) | Fatigue testing of a wind turbine blade | |
| CN104568351A (en) | Damping-structure-optimized blade testing experiment table and experimental method thereof | |
| CN103743556B (en) | There is the proving installation of shroud and boss lashing wire structure turbine blade | |
| CN102156035A (en) | Turbine blade vibration characteristic testing and measuring device with shroud damping block and blade root wedged damping block | |
| CN102213110B (en) | Method and tool for measuring and trimming steam sealing radial gap of steam turbine set | |
| CN105928676A (en) | Vibration testing device of damping mistuning blade-turbine disk with damping block structure | |
| CN103592018B (en) | High-low cycle compound fatigue test high-cycle amplitude measuring equipment and method | |
| CN105319039A (en) | Vibration fatigue testing method for large-bypass-ratio engine fan blade with shoulder | |
| CN106226015A (en) | A kind of assay device of turbine disk coupled vibrations | |
| CN109387345B (en) | Dry friction damping structure-containing simulated detuning blisk and testing device and method | |
| CN102865915B (en) | Device for measuring static frequency of movable blade of high-pressure compressor of gas turbine combined compressor | |
| JP5812815B2 (en) | Fretting fatigue test jig, fretting fatigue test apparatus, and fretting fatigue strength evaluation method | |
| CN107101792A (en) | A kind of experimental rig, system and method for obtaining the welding pipeline vibrating fatigue limit | |
| CN103196768A (en) | Fretting wear simulation test system | |
| RU110483U1 (en) | DEVICE FOR RESEARCH OF DAMPING ABILITY OF TURBINE SHOULDERS WITH FRICTION DUMPERS | |
| CN106840630A (en) | Damping test device with listrium damper structure turbo blade | |
| CN110125480A (en) | A kind of detection method and detection system of the side deformation of bands for band back | |
| Khalkar et al. | Study of free undamped and damped vibrations of a cracked cantilever beam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170517 Termination date: 20210413 |