CN205719840U - A kind of experimental facilities of swivel control head glue core abrasion - Google Patents

A kind of experimental facilities of swivel control head glue core abrasion Download PDF

Info

Publication number
CN205719840U
CN205719840U CN201620539057.3U CN201620539057U CN205719840U CN 205719840 U CN205719840 U CN 205719840U CN 201620539057 U CN201620539057 U CN 201620539057U CN 205719840 U CN205719840 U CN 205719840U
Authority
CN
China
Prior art keywords
glue core
test specimen
control head
fixture
abrasion
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.)
Expired - Fee Related
Application number
CN201620539057.3U
Other languages
Chinese (zh)
Inventor
胡刚
王国荣
李泉昌
周彬
陈柏浩
赵燎
郭宝林
程强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Southwest Petroleum University
Original Assignee
Southwest Petroleum University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Southwest Petroleum University filed Critical Southwest Petroleum University
Priority to CN201620539057.3U priority Critical patent/CN205719840U/en
Application granted granted Critical
Publication of CN205719840U publication Critical patent/CN205719840U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of experimental facilities for the abrasion of swivel control head glue core, belong to wear test technical field of measuring equipment.Swivel control head glue core wear test equipment of the present utility model, including vertical omnipotent friction wear testing machine, test specimen glue core fixture, conduit and the adjustable slush pump of stepping.The test specimen glue core fixed by housing assembly and fixing device in main shaft in the utility model and fixture constitutes revolute and relatively rotates, temperature control equipment and the adjustable slush pump of stepping provide different experimental conditions for it, effectively simulate the abrasive wear situation of swivel control head glue core during under balance pressure drilling.The utility model solves this field experimental facilities current and does not possess the standardized problem of systematization, promotes the research to its abrasion mechanism and damage evolutional law.Test basis accurate, reliable can be provided for the design of the related components such as swivel control head glue core, manufacture with safeguarding.

Description

A kind of experimental facilities of swivel control head glue core abrasion
Technical field
The utility model relates to wear test technical field of measuring equipment, the abrasion of specifically a kind of swivel control head glue core Experimental facilities, especially a kind of experimental facilities simulating swivel control head glue core abrasion in under-balanced drilling technology.
Background technology
Swivel control head is the key equipment of under-balanced drilling technology, and the interference that it relies primarily between glue core and drilling rod is joined Close, utilize glue core deformable seal drilling liquid pressure, so the performance of glue core determines executing of under balance pressure drilling to a certain extent Work ability.But on the one hand the development of domestic swivel control head glue core puts into not, cause the design of glue core, produce the related mark of shortage The guiding of quasi-specification, inspection, transport and storage criterion also imperfection;On the other hand, the wear test for glue core lacks system Change, standardized experimental provision and equipment so that the technology experiment in this field cannot get the polishing scratch table similar to actual production Face pattern and surface composition, it is impossible to promote the research to its abrasion mechanism and damage evolutional law.
Abrasive wear tested and analyzes, and summing up its abrasion mechanism and the relation to related operating mode, rotation can be Turn the design of the control related components such as head glue core, manufacture and provide test basis accurate, reliable with safeguarding, to improving parts Fatigue life have great importance.
Body surface causes surfacing to lose with hard particles or hard ridge (including hard metal) phase mutual friction Phenomenon is referred to as abrasive wear.And Abrasive Wear Mechanism is belonging to the mechanism of abrasive material, this mechanism is to a great extent With the character of abrasive material, shape and size, abrasive material and the machinery by mill material surface under fixing degree and load effect Performance is relevant.The wherein hardness of abrasive material, size and shape, the toughness of abrasive particle, crushing strength and extraneous magnitude of load, slip Distance and sliding speed all can produce impact to abrasive wear.Existing abrasion test method can be divided into two classes:
1. wear test in kind: i.e. test under machine actual operating conditions with physical part, or with in kind zero Part uses at analog mechanical and tests on the testing stand of condition.
2. sample wear test: be i.e. intended to examination material and make regulation sample, under prescribed test conditions in specialized designs Testing machine on test.
Content of the invention
The purpose of this utility model is the experimental facilities providing a kind of swivel control head glue core to wear and tear, to solve the above-mentioned back of the body The problem proposing in scape technology.
For achieving the above object, the following technical scheme of the utility model offer: the reality of a kind of swivel control head glue core abrasion Testing equipment, including test specimen glue core fixture, vertical omnipotent friction wear testing machine, conduit and the adjustable slush pump of stepping, described is vertical The main shaft being driven by hydraulic piston is arranged at formula omnipotent friction wear testing machine top, and whirling test stand passes through screw thread and positioning below Pin connects fixing test specimen glue core fixture, by relatively rotating in main shaft rotary simulation swivel control head drilling process.Rotate examination Testing platform right has the adjustable mud to stepping to pump up the platform of supporting function.
Further, described test specimen glue core fixture is made up of housing assembly, rotation assembly, fixing device and sensing device.
Further, described housing assembly is made up of clamp cover and fixture cylinder, and clamp cover center is left and run through main shaft relatively Large through-hole, around equidistant angularly distribution six is compared with small through hole, for the tight stud coordinating test specimen glue core upper surface to process Fixing test specimen glue core.
Further, placing test specimen glue core in the middle of described fixture cylinder, the space segment that both surround becomes dielectric cavity.Fixture The peripheral circumferential of cylinder 1/2nd height has three uniform apertures, in order to place the steady arm of wheel flange.Outside bottom fixture cylinder Wall symmetry opens one group of aperture, the outlet of respectively external stepping is adjustable slush pump enter media port and the adjustable slush pump of external stepping enters Mouthful go out media port.Fixture cylinder upper and lower side be threaded connection respectively be connected with clamp cover, whirling test stand fixing, described Fixture drum outer wall enters media port and goes out the dust protection rubber skin that media port is provided with center drilling, and the edge of described dust protection rubber skin is fixed In fixture drum outer wall face.
Further, described rotation assembly is made up of main shaft, test specimen glue core, bearing and sealing ring, described main shaft and test specimen Being interference fit between glue core, during work, main shaft rotates relative to test specimen glue core.
Further, described bearing is placed on the counter sink within fixture cylinder, and bearing and sealing ring are positioned at the end of main shaft Hold on adjacent two steps.
Further, described fixing device is made up of bolt and wheel flange.Test specimen glue core upper surface is through vulcanizing treatment, and it is equal The through hole that six groups of processing studs of cloth run through clamp cover is bolted, thus ensures test specimen glue core self axially, radially admittedly Fixed.It is with wheel flange at test specimen glue core outer radially fixed for strengthening.
Further, described sensing device is made up of temperature control equipment, torque-measuring apparatus and stream pressure measuring device.Main Hollow process at axle bottom up 1/3rd, places temperature control equipment, and wire is derived by main shaft bottom downwards by axle center, It is access to friction wear testing machine temperature control system.Leaving elongated step bottom main shaft, end transmits moment of torsion and by connecing with it The friction wear testing machine torque sensing measurement apparatus touched is to the real-time torque data of system introducing.Wheel flange makees hollow process, patch Installing stream pressure measuring device at nearly outside wall surface, its wire is drawn by steady arm and receives acquisition system.
Further, the adjustable slush pump of described stepping is for being equipped with the micro mud pump of flow pressure adjusting means, during work Drive liquid medium to circulate and glue core test specimen f pictional surface contacts, prevent the test mud medium in fixture cylinder from precipitating.Step Enter adjustable slush pump to enter media port by conduit and fixture and communicate.
Compared with prior art, the beneficial effects of the utility model are:
1) experimental facilities of the present utility model, simple in construction, easy and simple to handle, easy to maintenance, it is suitable for popularization and application;
2) experimental facilities of the present utility model, can controllable high-temperature, hydraulic flow rates, granule medium different Variable Conditions under Carry out abrasive grain wear test;
3) experimental facilities of the present utility model, can effectively simulate the mill of swivel control head glue core during under balance pressure drilling Grain abrasion condition, obtains the worn-out surface pattern similar to actual production and surface composition, promotes to its abrasion mechanism and damage Hinder the research of development law;
4) experimental facilities of the present utility model, utilizes the accurate experimental data that it draws, it can be gathered that swivel control head glue Core abrasion mechanism and the relation to related operating mode, can be the design of the related components such as swivel control head glue core, manufacture and maintenance Test basis accurate, reliable is provided.
Brief description
Fig. 1 is locations of structures schematic diagram of the present utility model;
Fig. 2 is fixture composition schematic diagram in the utility model;
Fig. 3 is clamp structure schematic diagram in the utility model;
Fig. 4 is fixture top view in the utility model;
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of making creative work The every other embodiment being obtained, broadly falls into the scope of the utility model protection.
Referring to Fig. 1, the utility model provides a kind of technical scheme: the experiment of a kind of swivel control head glue core abrasion sets Standby, including test specimen glue core fixture the 1st, vertical omnipotent friction wear testing machine the 2nd, conduit 3 and the adjustable slush pump of stepping 4, described is vertical The main shaft being driven by hydraulic piston is arranged at formula omnipotent friction wear testing machine 2 top, and whirling test stand passes through screw thread and determines below Position pin connects fixing test specimen glue core fixture 1, by relatively rotating in main shaft rotary simulation swivel control head drilling process.Rotate There is the platform of adjustable 4 supporting functions of slush pump to stepping testing stand right.Owing to have employed said structure, whirling test stand leads to Cross screw thread and alignment pin connects fixing test specimen glue core fixture, can effectively ensure that the stability of test specimen glue core fixture.Lived by hydraulic pressure The rotary motion of plug drive shaft so that accurately, test accuracy is high for its frequency and moment of torsion control.
Further, described test specimen glue core fixture 1 is by housing assembly the 5th, rotation assembly the 6th, fixing device 7 and sensing device 8 Composition.
Further, described housing assembly 5 is made up of clamp cover 11 and fixture cylinder 12.
Further, the relatively large through-hole running through main shaft is left at clamp cover 11 center, around equidistant angularly distribution six Compared with small through hole, fix test specimen glue core for the tight stud coordinating the processing of test specimen glue core upper surface.(owing to have employed above-mentioned knot Structure, can be effectively ensured test specimen glue core by continual and steady squeezing action by threadeding of clamp cover and barrel, thus Vertical direction achieves the fixing of test specimen glue core.)
Further, placing test specimen glue core in the middle of described fixture cylinder 12, the space segment that both surround becomes dielectric cavity.Folder The peripheral circumferential of tool cylinder 1/12nd 2 height has three uniform apertures, in order to place the steady arm 20 of wheel flange 13.Fixture Cylinder bottom outer wall symmetry opens one group of aperture, the outlet of respectively external stepping is adjustable slush pump 4 enter media port 19 and external stepping The import of adjustable slush pump 4 go out media port 14.Fixture cylinder 12 upper and lower side is threaded connection and clamp cover the 11st, rotation test respectively Platform connects fixing.Owing to have employed said structure, the clamp cover space airtight with fixture cylinder can provide dielectric cavity.To dielectric cavity It is inside filled with liquid particles medium, all do not interfere with the applying of load and the driving of moment of torsion.By being filled with liquid in dielectric cavity Granule medium makes its submergence test specimen inwall and the contact surface with test specimen outer wall thereof, can be at the liquid medium of various variable grain character Under the conditions of carry out abrasive grain wear test.
Further, enter media port 19 at described fixture drum outer wall and go out the dust-proof rubber that media port 14 is provided with center drilling Rubber, the edge of described dust protection rubber skin is fixed on fixture drum outer wall face.Owing to have employed said structure, the limit of dust protection rubber skin Outside wall surface is fixed in portion, and the conduit of mud, liquid medium can pass through in the center drilling from dust protection rubber skin, makes to dust-proof Dust and other impurities is isolated by rubber peel, it is to avoid foreign material affect result of the test in entering into dielectric cavity.
Further, described rotation assembly 6 is made up of main shaft the 9th, test specimen glue core the 22nd, bearing 17 and sealing ring 18, described master Being interference fit between axle 9 and test specimen glue core 22, during work, main shaft rotates relative to test specimen glue core 22.On have employed Stating structure, the inwall that described main shaft 9 makes circumference load all at test specimen glue core 22 by simple revolute pair structure is carried out;And test specimen The outside of glue core 22 does not needs to be driven and loads.
Further, described bearing 17 is placed on the counter sink within fixture cylinder 12, and bearing 17 and sealing ring 18 are positioned at On adjacent two steps of end of main shaft 9.Owing to have employed said structure, described bearing 17 is arranged on and can prop up bottom fixture cylinder 12 Support main shaft 9, it is ensured that main shaft 9 rotates axiality, and main shaft can rotate relative to housing assembly 5 simultaneously.Fixture cylinder 12 bottom open channels Hydropneumatic O type nitrile rubber sealing ring 18 is installed, prevents mud medium infiltration in fixture cylinder, it is ensured that bearing normally works.
Further, described fixing device 7 is made up of bolt 10 and wheel flange 13.Test specimen glue core upper surface through sulfuration at Reason, the through hole that its six groups of uniform processing studs 23 run through clamp cover 11 is bolted, thus ensures test specimen glue core 22 certainly Body is axial, radially fixed.It is with wheel flange 13 at test specimen glue core outer radially fixed for strengthening.Owing to have employed above-mentioned knot Structure, the described fixing device being made up of bolt 10 and wheel flange 13 fixing glue core test specimen simultaneously, it can be because not loading solid There is uniform CONTACT WITH FRICTION with main shaft under the conditions of the preliminary examination determined reason and deform upon.
Further, described sensing device 8 is by temperature control equipment the 15th, torque-measuring apparatus and stream pressure measuring device 21 groups Become.Hollow process at main shaft 9 bottom up 1/3rd, places temperature control equipment 15, and wire passes through axle center downwards by main shaft Bottom is derived, and is access to friction wear testing machine temperature control system.Leaving elongated step 16 bottom main shaft, end transmission moment of torsion is simultaneously By the friction wear testing machine torque sensing measurement apparatus that is in contact with it to the real-time torque data of system introducing.Wheel flange 13 is made Hollow process, presses close to install at outside wall surface stream pressure measuring device 21, and its wire is drawn by steady arm 20 and receives acquisition system. Owing to have employed said structure, described temperature control system is installed in main shaft, and described stream pressure measuring device is installed on wheel flange In, all do not interfere with normal abrasive wear state, and the wear test that can require for various working provides different temperature Condition and pressure condition.Temperature, moment of torsion, pressure data are shown in host computer system after each sensing device collection, and it collects statistics And state change information is directly perceived, clear and easy to see in system reflection.
Further, the adjustable slush pump of described stepping 4 is for being equipped with the micro mud pump of flow pressure adjusting means, during work Drive liquid medium to circulate and glue core test specimen f pictional surface contacts, prevent the test mud medium in fixture cylinder from precipitating.Step Enter adjustable slush pump 4 to enter media port 19 by conduit 3 and fixture and communicate.Owing to have employed said structure, described stepping is adjustable mud Stock pump 4 is for being equipped with the slush pump as this equipment for the micro mud pump of flow pressure adjusting means, it is provided that granular size, liquid The experiment condition of the different variablees such as pressure flow velocity, thus carry out under various operating mode, the abrasive particle under especially different hydraulic medium operating modes Abrasion, can provide test basis more accurate, reliable for the design of related components, manufacture with safeguarding.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that and can carry out multiple change to these embodiments, repair in the case of without departing from principle of the present utility model and spirit Changing, replacing and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.

Claims (9)

1. the experimental facilities of swivel control head glue core abrasion, it is characterised in that: include test specimen glue core fixture (1), vertical ten thousand Energy friction wear testing machine (2), conduit (3) and the adjustable slush pump of stepping (4), described vertical omnipotent friction wear testing machine (2) top has by motor-driven main shaft, and whirling test stand passes through screw thread and alignment pin connects fixing test specimen glue core folder below Tool (1), by relatively rotating of drilling rod in main shaft rotary simulation swivel control head drilling process and rubber glue core, whirling test stand Right has the adjustable slush pump (4) to stepping to play the platform of supporting function.
2. the experimental facilities of a kind of swivel control head glue core according to claim 1 abrasion, it is characterised in that: described test specimen Glue core fixture (1) is made up of housing assembly (5), rotation assembly (6), fixing device (7) and sensing device (8).
3. the experimental facilities of a kind of swivel control head glue core according to claim 2 abrasion, it is characterised in that: described housing Assembly (5) is made up of clamp cover (11) and fixture cylinder (12), and the relatively large through-hole running through main shaft is left at clamp cover (11) center, around Equidistant be angularly uniformly distributed six compared with small through hole, fix test specimen for the tight stud coordinating the processing of test specimen glue core upper surface Glue core.
4. the experimental facilities of a kind of swivel control head glue core according to claim 3 abrasion, it is characterised in that: described fixture Placing test specimen glue core in the middle of cylinder (12), the space segment that both surround becomes dielectric cavity, fixture cylinder (12) 1/2nd height Peripheral circumferential has three uniform apertures, in order to place the steady arm (20) of wheel flange (13), fixture cylinder (12) bottom outer wall pair Claiming to open one group of aperture, respectively external stepping is adjustable, and slush pump (4) exports enters media port (19) and the adjustable mud of external stepping Pump (4) import go out media port (14), fixture cylinder (12) upper and lower side be threaded connection respectively with clamp cover (11), rotation test Platform connects fixing, enters media port (19) at described fixture drum outer wall and goes out the dust protection rubber that media port (14) is provided with center drilling Skin, the edge of described dust protection rubber skin is fixed on fixture drum outer wall face.
5. the experimental facilities of a kind of swivel control head glue core according to claim 2 abrasion, it is characterised in that: described rotation Assembly (6) is made up of main shaft (9), test specimen glue core (22), bearing (17) and sealing ring (18), described main shaft (9) and test specimen glue core (22) being interference fit between, during work, main shaft rotates relative to test specimen glue core (22).
6. the experimental facilities of a kind of swivel control head glue core according to claim 5 abrasion, it is characterised in that: described axle Holding (17) to be placed on the internal counter sink of fixture cylinder (12), bearing (17) and sealing ring (18) are positioned at the end phase of main shaft (9) On adjacent two steps.
7. the experimental facilities of a kind of swivel control head glue core according to claim 2 abrasion, it is characterised in that: described fixing Device (7) is made up of bolt (10) and wheel flange (13), and test specimen glue core (22) upper surface is through vulcanizing treatment, its six groups of uniform spiral shells The through hole that post (23) runs through clamp cover (11) is bolted, thus ensures that test specimen glue core (22) self is axial, radially fixed, It is with wheel flange (13) at test specimen glue core (22) outer and be used for strengthening radially fixed.
8. the experimental facilities of a kind of swivel control head glue core according to claim 2 abrasion, it is characterised in that: described sensing Device (8) is made up of temperature control equipment (15), torque-measuring apparatus and stream pressure measuring device (21), main shaft (9) bottom up Hollow process at 1/3rd, places temperature control equipment (15), and wire is derived by main shaft bottom downwards by axle center, is access to rub Wiping abrasion tester temperature control system, leaving elongated step (16) bottom main shaft, end transmits moment of torsion and by being in contact with it Friction wear testing machine torque sensing measurement apparatus make hollow process to the real-time torque data of system introducing, wheel flange (13), Pressing close to and installing stream pressure measuring device (21) at outside wall surface, its wire is drawn by steady arm (20) and is received acquisition system.
9. the experimental facilities of a kind of swivel control head glue core according to claim 1 abrasion, it is characterised in that: described stepping Adjustable slush pump (4) for be equipped with flow pressure adjusting means micro mud pump, during work drive liquid medium circulate with Glue core test specimen f pictional surface contacts, prevents the test mud medium in fixture cylinder from precipitating, and stepping is adjustable, and slush pump (4) passes through conduit (3) enter media port (19) with fixture to communicate.
CN201620539057.3U 2016-06-01 2016-06-01 A kind of experimental facilities of swivel control head glue core abrasion Expired - Fee Related CN205719840U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620539057.3U CN205719840U (en) 2016-06-01 2016-06-01 A kind of experimental facilities of swivel control head glue core abrasion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620539057.3U CN205719840U (en) 2016-06-01 2016-06-01 A kind of experimental facilities of swivel control head glue core abrasion

Publications (1)

Publication Number Publication Date
CN205719840U true CN205719840U (en) 2016-11-23

Family

ID=57301678

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620539057.3U Expired - Fee Related CN205719840U (en) 2016-06-01 2016-06-01 A kind of experimental facilities of swivel control head glue core abrasion

Country Status (1)

Country Link
CN (1) CN205719840U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105954133A (en) * 2016-06-01 2016-09-21 西南石油大学 Rotating control head rubber core abrasion experiment equipment
CN114396241A (en) * 2022-03-28 2022-04-26 四川新为橡塑有限公司 Double-layer sealed spherical rubber core and annular blowout preventer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105954133A (en) * 2016-06-01 2016-09-21 西南石油大学 Rotating control head rubber core abrasion experiment equipment
CN105954133B (en) * 2016-06-01 2019-03-12 西南石油大学 A kind of experimental facilities of swivel control head glue core abrasion
CN114396241A (en) * 2022-03-28 2022-04-26 四川新为橡塑有限公司 Double-layer sealed spherical rubber core and annular blowout preventer
CN114396241B (en) * 2022-03-28 2022-06-10 四川新为橡塑有限公司 Double-layer sealed spherical rubber core and annular blowout preventer

Similar Documents

Publication Publication Date Title
CN107314893B (en) Modularized multifunctional rotor experiment table
CN101957296B (en) Remanufactured part surface coating accelerated wear life testing machine and detection method thereof
CN104807641B (en) A kind of force self-balanced formula Thrust Bearing Test Rig
CN105954133B (en) A kind of experimental facilities of swivel control head glue core abrasion
CN108051328A (en) A kind of multifunction friction wear testing machine secondary based on the friction of pin disk and its test method
CN207866641U (en) A kind of multifunction friction wear testing machine secondary based on the friction of pin disk
CN106525429B (en) A kind of angular contact bearing birotor testing machine
CN205719840U (en) A kind of experimental facilities of swivel control head glue core abrasion
CN105277459B (en) Multi-functional fatigue wear testing machine
CN205749177U (en) A kind of electrical analogue friction plate inertia subscale test platform of multi-scenarios method
CN108956352A (en) For evaluating the experimental rig and test method of exemplar erosive wear resistant performance
CN110231171B (en) Hydrostatic pressure gyration test bench
CN201277934Y (en) Friction and abrasion test apparatus for high hardness abrasion resistant material
CN106644479A (en) Test bed of vertical bearing
CN204439266U (en) A kind of tugboat axial force detection device
CN109916541A (en) A kind of turntable bearing frictional torque testing machine
CN102749195B (en) High-speed water bearing performance test device with air seal
CN206410970U (en) A kind of lubricating oil viscosity of testing influences the experimental provision of torque output
CN205643066U (en) Detection apparatus for be used for determining aggregate to contact component loss degree
CN106052765B (en) Shield machine roller cutter device for dynamically detecting
CN205157357U (en) Multi -functional fatigue wear testing machine
CN202330201U (en) Corrosion abrasion test machine for simulating working station of refiner
CN202420999U (en) Wear tester
CN103760095A (en) Sliding-table bushing abrasion machine
CN204495560U (en) A kind of rolling bearing combined fault simulated experiment platform

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20161123

Termination date: 20170601

CF01 Termination of patent right due to non-payment of annual fee