CN107161173B - Composite rail axle support for rail flat car - Google Patents
Composite rail axle support for rail flat car Download PDFInfo
- Publication number
- CN107161173B CN107161173B CN201710433602.XA CN201710433602A CN107161173B CN 107161173 B CN107161173 B CN 107161173B CN 201710433602 A CN201710433602 A CN 201710433602A CN 107161173 B CN107161173 B CN 107161173B
- Authority
- CN
- China
- Prior art keywords
- mounting seat
- axle
- connecting part
- backing ring
- shaped
- 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
- 239000002131 composite material Substances 0.000 title description 4
- 150000001875 compounds Chemical class 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 230000007774 longterm Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000002378 acidificating effect Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K5/00—Apparatus for placing vehicles on the track; Derailers; Lifting or lowering rail vehicle axles or wheels
- B61K5/02—Devices secured to the vehicles; Turntables integral with the vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention belongs to the technical field of railway track flatcar equipment manufacture, and particularly relates to a double-track axle support for a railway track flatcar, which comprises a car body, a U-shaped support ring and an axle, wherein two ends of the U-shaped support ring are respectively fixed on the car body through a first connecting part and a second connecting part, and the first connecting part and the second connecting part have the same structure; the first connecting portion and the second connecting portion comprise a first mounting seat and a second mounting seat, the first mounting seat and the second mounting seat are in surface contact connection and are fixed, the axle is arranged in the U-shaped backing ring, and the axle and the U-shaped backing ring are in clearance arrangement. The compound rail shaft support avoids the phenomenon of sliding wire which is easy to cause in the long-term use process of the traditional compound rail shaft support, and has the characteristics of large contact surface, large connection strength and applicability to acidic working environments.
Description
Technical Field
The invention belongs to the technical field of railway track flatcar equipment manufacturing, and particularly relates to a compound rail shaft support for a railway track flatcar.
Background
The railway is a pulse for the economic development of national economy in China, the railway transportation plays a very important role in the cargo transportation, has the characteristics of strong transportation capacity and more loaded cargoes, and in the railway transportation, the rail flatcar is used as an important carrier, can be directly used for transporting cargoes with larger volumes or weights such as steel, wood, automobiles, mechanical equipment and the like, and can also be used for transporting other cargoes by means of containers. The track flatcar can also adapt to national defense requirements and load various military equipment. Flatcars with movable wallboards can also be used for loading and transporting bulk cargoes such as ores, sandy soil, stone residues and the like. In recent years, with rapid development of railway transportation and urban rail transit, market demands of railway track flatcars are rapidly increased, and meanwhile, due to wide regions in China and continuous improvement of railway running speed, weather conditions in various places are different, requirements of economy, safety and environmental influence of vehicles are evaluated more and more strongly, and railway track flatcars capable of meeting different requirements are required to be carried out according to different requirements.
The double-track axle support is an important structural component of the track flat car, and in the use of the track flat car, particularly in the process of lifting or double-track operation of the track flat car, the double-track axle support needs to bear a large load force, so that the bearing stability of the double-track axle support is particularly important. The traditional compound rail axle holds in palm by U type backing ring, nut, lug triplex, the lug adopts welding mode and flatcar body coupling, and U type knockover end adopts the helicitic texture and passes lug and nut connection, at the in-process that track flatcar lifted by crane or compound rail, compound rail axle holds in the palm direct atress and passes the screw thread department that U type backing ring and lug are connected with load, this scheme has following problem: firstly, in the long-term use process of a vehicle, the stress concentration phenomenon is generated at a threaded hole due to the direct stress of threads, so that the phenomenon of sliding threads is easy to generate, and potential safety hazards exist; secondly, in some environments with high humidity and acidity, the U-shaped looper thread is easy to rust, and potential safety hazards are also generated when the double-track shaft support is stressed.
Disclosure of Invention
The invention aims to provide a double-track axle support for a track flat car, which has large contact surface and high connection strength and can be applied to an acidic environment.
The technical scheme adopted by the invention is as follows: the double-track axle support for the track flatcar comprises a car body, a U-shaped support ring, an axle, a first connecting part and a second connecting part, wherein two ends of the U-shaped support ring are respectively fixed on the car body through the first connecting part and the second connecting part, and the first connecting part and the second connecting part have the same structure; the first connecting portion and the second connecting portion comprise a first mounting seat and a second mounting seat, the first mounting seat and the second mounting seat are in surface contact connection and are fixed, the axle is arranged in the U-shaped backing ring, and the axle and the U-shaped backing ring are in clearance arrangement.
The longitudinal clearance between the axle and the U-shaped backing ring is L2, and the transverse clearance between the axle and the U-shaped backing ring is L1.
The longitudinal clearance is 15mm-30mm in the numerical range, the integral lifting or re-track requirement of the vehicle body is met, the transverse clearance is 20mm-50mm in the numerical range, and the vehicle dynamics requirement is met.
The first mounting seat and the second mounting seat are respectively arranged at the bottom of the mounting seat bottom plate and comprise an L-shaped mounting seat bottom plate and two mounting seat rib plates fixedly arranged at the bottom of the mounting seat bottom plate, a waist-shaped through hole is formed in the mounting seat bottom plate, and the first mounting seat and the second mounting seat are in reverse surface contact superposition and are fixedly connected through bolts.
The novel car body is characterized by further comprising channel steel, wherein the first mounting seat is fixedly welded with the channel steel, and the channel steel is fixedly connected with the car body in a tenoning welding mode.
The second mount pad and U type backing ring welded fastening, mount pad bottom plate and two mount pad gusset rather than fixed connection form the installation space that is used for installing U type backing ring, U type backing ring sets up in the installation space just U type backing ring and mount pad bottom plate, two mount pad gusset and mount pad bottom plate are welded fastening.
The beneficial effects of the invention are as follows:
1. the first mounting seat and the second mounting seat of the double-track shaft support for the track flatcar are connected by bolts, so that direct stress of threads at the end part of the U-shaped support ring during operation is avoided, generated load is transmitted to the second mounting seat by the U-shaped support ring, the second mounting seat and the first mounting seat are in surface contact, the safety of a design structure is greatly improved, and the possibility of thread slipping is avoided.
2. The composite rail shaft support channel steel for the rail flat car and the car body adopt a tenoning welding mode, so that the connection strength of the cantilever beam is ensured; the first mounting seat of the double-track shaft support for the track flat car is connected with the channel steel by three-surface girth welds, so that the problem of weak welding strength caused by transverse welding or vertical welding is avoided, and the connection strength is ensured; the second mounting seat of the double-track shaft support for the track flat car is connected with the U-shaped support ring in a welding mode, so that hidden danger caused by corrosion of bolts in an acidic or alkaline environment due to a threaded connection structure is avoided, and the influence of the environment on the structure is eliminated.
3. The first mounting seat and the second mounting seat of the compound rail shaft support for the track flat car are formed by welding carbon steel, and meanwhile, the bolt connecting holes adopt a kidney-shaped hole design with adjustable positions, so that errors generated in the manufacturing process are made up, and the assembly of the compound rail shaft support is ensured.
4. The double-rail axle support for the track flat car has the advantages of simple, scientific and reasonable design structure and convenient installation and use; the anti-drop and anti-corrosion design is adopted while the functions of integrally lifting and quickly lifting and restoring the rail of the vehicle are met, the potential safety hazard of the vehicle in the long-term running process is eliminated, and the service life of the rail restoring shaft support is prolonged.
Drawings
FIG. 1 is a schematic diagram of a front view of a multi-rail axle bracket for a rail flat car of the present invention;
FIG. 2 is a schematic view of a first mounting seat of a multi-rail axle bracket for a rail flat car;
FIG. 3 is a schematic top view of FIG. 2;
fig. 4 is a schematic structural view of a U-shaped trunnion ring.
The marks in the figure: 1. the vehicle comprises a vehicle body, 2, channel steel, 3, a first mounting seat, 301, a mounting seat bottom plate, 302, a mounting seat rib plate, 4, bolts, 5, gaskets, 6, nuts, 7, a second mounting seat, 8, a U-shaped backing ring, 9, an axle, 10 and wheels.
Detailed Description
The first embodiment of the double-track axle support for the track flat car disclosed by the invention is shown in fig. 1-4, and comprises a car body 1, a U-shaped support ring 8, an axle 9, a first connecting part and a second connecting part, wherein two ends of the U-shaped support ring 8 are respectively fixed on the car body through the first connecting part and the second connecting part, and the first connecting part and the second connecting part have the same structure; the first connecting part and the second connecting part comprise a first mounting seat 3 and a second mounting seat 7, the first mounting seat 3 and the second mounting seat 7 are fixedly connected in a surface contact manner, the axle 9 is arranged in the U-shaped backing ring, and the axle 9 and the U-shaped backing ring 8 are in clearance arrangement.
The longitudinal clearance between the axle 9 and the U-shaped backing ring 8 is L2, and the transverse clearance between the axle and the U-shaped backing ring is L1.
The longitudinal clearance is 15mm-30mm in the numerical range, the integral lifting or re-track requirement of the vehicle body is met, the transverse clearance is 20mm-50mm in the numerical range, and the vehicle dynamics requirement is met.
The first mounting seat 3 and the second mounting seat 7 comprise an L-shaped mounting seat bottom plate 301 and two mounting seat rib plates 302 fixedly arranged at the bottom of the mounting seat bottom plate 301, round waist holes are formed in the mounting seat bottom plate 301, and the first mounting seat 3 and the second mounting seat 7 are in reverse surface contact superposition arrangement and fixedly connected through bolts 4, gaskets 5 and nuts 6.
The novel steel rail vehicle is characterized by further comprising a channel steel 2, wherein the first mounting seat 3 is fixedly welded with the channel steel 2, and the channel steel 2 is fixedly connected with the vehicle body 1 in a tenoning welding mode.
The second mounting seat 7 is welded and fixed with the U-shaped backing ring 8, the mounting seat bottom plate 301 and two mounting seat rib plates 302 fixedly connected with the mounting seat bottom plate form a mounting space for mounting the U-shaped backing ring 8, the U-shaped backing ring 8 is arranged in the mounting space, and the U-shaped backing ring 8 is welded and fixed with the mounting seat bottom plate 301, the two mounting seat rib plates 302 and the mounting seat bottom plate 301.
The invention has the following action principle: in the process of lifting or re-tracking of the vehicle, along with the lifting of the vehicle body 1, the re-tracking axle support ascends along with the vehicle body, after the center plate pin ascends by a certain height, the re-tracking axle support starts to be in contact with the axle 9, and the axle 9 is lifted along with the vehicle body 1 under the action of the two sets of re-tracking axle supports, so that the wheels 10 are finally lifted or placed on the track.
When the complex rail axle support design for the track flat car is carried out, the following influence factors are fully considered: firstly, the vertical distance between the U-shaped supporting ring and the axle is kept from excessively bearing the center pin because of the excessively large distance, so that the action of the center pin and the double-track axle support is invalid, and if the distance is excessively small, the double-track axle support is possibly contacted with the axle in the running process of the vehicle, and the running safety is influenced; secondly, the transverse distance between the double-track axle support and the axle is considered, so that the phenomenon that the double-track axle support is in contact with the axle in the process of passing a curve due to too small distance is avoided, and the driving safety is influenced; thirdly, whether interference occurs between the position of the mounting seat of the double-track axle support and the basic braking device of the vehicle or not is considered; the longitudinal gap of the invention realizes the effect of ascending along with the ascending of the vehicle body and the ascending of the re-railing axle support and the axle in turn during the lifting or re-railing operation of the vehicle, and the transverse distance realizes the effect of always keeping the re-railing axle support and the axle non-contact during the turning of the vehicle, thereby being capable of well solving the problems.
The first mount pad of compound rail axle support for the track flat car, second mount pad adopt bolted connection mode, have avoided U type to hold in the palm the direct atress of circle tip screw thread when carrying out the operation, and the produced load is transmitted first, two mount pads by U type to hold in the palm the circle, and first, two mount pads adopt the face contact mode, improve the security of design structure greatly, avoided the possibility of screw thread "smooth silk".
The connection mode of the composite rail shaft support channel steel and the vehicle body for the rail flat car adopts a tenoning welding mode, so that the connection strength of the cantilever beam is ensured.
The first mounting seat of the double-track shaft support for the track flat car is connected with the channel steel by three-face girth welds, so that only transverse welding or vertical welding is avoided, and the connection strength is ensured.
The second mounting seat of the double-track shaft support for the track flat car is connected with the U-shaped support ring in a welding mode, but not in a threaded structure, so that the screw thread is prevented from being corroded due to environmental influence, and the influence of the environment on the structure is eliminated.
The first mounting seat and the second mounting seat of the compound rail shaft support for the track flat car are formed by welding carbon steel, and meanwhile, the bolt connecting holes adopt a kidney-shaped hole design with adjustable positions, so that errors generated in the manufacturing process are compensated, and the assembly of the compound rail shaft support is ensured.
The invention provides a double-track axle support for a track flat car, which has simple, scientific and reasonable design structure and convenient installation and use; the anti-drop and anti-corrosion design is adopted while the functions of integrally lifting and quickly lifting and restoring the rail of the vehicle are met, the potential safety hazard of the vehicle in the long-term running process is eliminated, and the service life of the rail restoring shaft support is prolonged.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. The utility model provides a track flat car is with compound rail axle support, includes automobile body, U type backing ring and axletree, its characterized in that: the U-shaped support ring is characterized by further comprising a first connecting part and a second connecting part, wherein two ends of the U-shaped support ring are respectively fixed on a vehicle body through the first connecting part and the second connecting part, and the first connecting part and the second connecting part have the same structure; the first connecting part and the second connecting part comprise a first mounting seat and a second mounting seat, the first mounting seat and the second mounting seat are connected and fixed in a surface contact mode, the axle is arranged in the U-shaped backing ring, and the axle and the U-shaped backing ring are arranged in a clearance mode;
the longitudinal clearance between the axle and the U-shaped backing ring is L2, and the transverse clearance between the axle and the U-shaped backing ring is L1;
the first mounting seat and the second mounting seat comprise an L-shaped mounting seat bottom plate and two mounting seat rib plates fixedly arranged at the bottom of the mounting seat bottom plate, a waist-shaped through hole is formed in the mounting seat bottom plate, and the first mounting seat and the second mounting seat are overlapped in a reverse surface contact mode and fixedly connected through bolts;
the longitudinal clearance is 15-30 mm in the numerical range, so that the integral hoisting or re-track requirement of the car body is met, the transverse clearance is 20-50 mm in the numerical range, and the dynamics requirement of the car is met;
the first mounting seat is welded and fixed with the channel steel, and the channel steel is fixedly connected with the vehicle body in a tenoning welding mode;
the second mount pad and U type backing ring welded fastening, mount pad bottom plate and two mount pad gusset rather than fixed connection form the installation space that is used for installing U type backing ring, U type backing ring sets up in the installation space just U type backing ring and mount pad bottom plate, two mount pad gusset and mount pad bottom plate are welded fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710433602.XA CN107161173B (en) | 2017-06-09 | 2017-06-09 | Composite rail axle support for rail flat car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710433602.XA CN107161173B (en) | 2017-06-09 | 2017-06-09 | Composite rail axle support for rail flat car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107161173A CN107161173A (en) | 2017-09-15 |
| CN107161173B true CN107161173B (en) | 2023-11-03 |
Family
ID=59824943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710433602.XA Active CN107161173B (en) | 2017-06-09 | 2017-06-09 | Composite rail axle support for rail flat car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107161173B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4579064A (en) * | 1984-06-28 | 1986-04-01 | New York City Transit Authority | Transfer wheel assembly for transporting disabled railway vehicle |
| JP2002179378A (en) * | 2000-12-13 | 2002-06-26 | Central Japan Railway Co | Wheel set hoisting accessory |
| WO2007124944A1 (en) * | 2006-05-02 | 2007-11-08 | Öbb-Infrastruktur Bau Aktiengesellschaft | Transportation device |
| CN102398606A (en) * | 2011-12-16 | 2012-04-04 | 保定天威集团有限公司 | Ultralow type platform wagon for sandblasting oil tank of large power transformer |
| KR20140000507U (en) * | 2012-07-13 | 2014-01-23 | 현대중공업 주식회사 | Crane assembly for rotating steel |
| CN204150959U (en) * | 2014-09-26 | 2015-02-11 | 南车眉山车辆有限公司 | The connecting device of a kind of lorry body and bogie truck |
| CN204341050U (en) * | 2015-01-22 | 2015-05-20 | 杭州豪盛电动车辆有限公司 | The steady rail flat car crossing ditch |
| CN204508557U (en) * | 2015-04-01 | 2015-07-29 | 晋西铁路车辆有限责任公司 | A kind of overhead hoist of railway truck |
| CN204775279U (en) * | 2015-07-15 | 2015-11-18 | 谢碧珍 | Cogged rail formula direction hydraulic pressure re railing device |
| CN205344887U (en) * | 2016-02-03 | 2016-06-29 | 湖南万通科技股份有限公司 | Rail flatcar |
| CN206797406U (en) * | 2017-06-09 | 2017-12-26 | 中车洛阳机车有限公司 | A kind of new rerail axle support of rail flat car |
-
2017
- 2017-06-09 CN CN201710433602.XA patent/CN107161173B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4579064A (en) * | 1984-06-28 | 1986-04-01 | New York City Transit Authority | Transfer wheel assembly for transporting disabled railway vehicle |
| JP2002179378A (en) * | 2000-12-13 | 2002-06-26 | Central Japan Railway Co | Wheel set hoisting accessory |
| WO2007124944A1 (en) * | 2006-05-02 | 2007-11-08 | Öbb-Infrastruktur Bau Aktiengesellschaft | Transportation device |
| CN102398606A (en) * | 2011-12-16 | 2012-04-04 | 保定天威集团有限公司 | Ultralow type platform wagon for sandblasting oil tank of large power transformer |
| KR20140000507U (en) * | 2012-07-13 | 2014-01-23 | 현대중공업 주식회사 | Crane assembly for rotating steel |
| CN204150959U (en) * | 2014-09-26 | 2015-02-11 | 南车眉山车辆有限公司 | The connecting device of a kind of lorry body and bogie truck |
| CN204341050U (en) * | 2015-01-22 | 2015-05-20 | 杭州豪盛电动车辆有限公司 | The steady rail flat car crossing ditch |
| CN204508557U (en) * | 2015-04-01 | 2015-07-29 | 晋西铁路车辆有限责任公司 | A kind of overhead hoist of railway truck |
| CN204775279U (en) * | 2015-07-15 | 2015-11-18 | 谢碧珍 | Cogged rail formula direction hydraulic pressure re railing device |
| CN205344887U (en) * | 2016-02-03 | 2016-06-29 | 湖南万通科技股份有限公司 | Rail flatcar |
| CN206797406U (en) * | 2017-06-09 | 2017-12-26 | 中车洛阳机车有限公司 | A kind of new rerail axle support of rail flat car |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107161173A (en) | 2017-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207711733U (en) | A kind of Container Transport road rail vehicle | |
| CN204264160U (en) | A kind of two stage stiffness axle box rubber spring | |
| CN107161173B (en) | Composite rail axle support for rail flat car | |
| CN201694245U (en) | Motor vehicle longitudinal beam | |
| CN201472405U (en) | Bogie center disc of railway vehicle | |
| CN209126811U (en) | A kind of reinforcing automobile chassis | |
| CN206797406U (en) | A kind of new rerail axle support of rail flat car | |
| CN204323387U (en) | A kind of railway wagon hand brake device | |
| CN203511649U (en) | Support transporting flat car | |
| CN203511165U (en) | Novel agricultural truck trailer axle | |
| CN204688243U (en) | Heavy goods vehicles traction saddle | |
| CN202294827U (en) | Combined floor for rail wagon | |
| CN2803812Y (en) | Wheel type adjustable height stop for goods loading and reinforcement | |
| CN201842097U (en) | Novel 80t-load dumper | |
| CN204110152U (en) | Low flat bed transport vehicle carrying platform | |
| CN210139753U (en) | Welded type guide arm air suspension | |
| CN209441382U (en) | A kind of sliding car lug applied to general fast railway | |
| CN112848882A (en) | Commercial car LNG gas cylinder is with no auxiliary girder high strength carbon steel welding stent | |
| CN202296259U (en) | Heavy-duty intelligent trolley with box trolley bodies | |
| CN202345709U (en) | Rail transport vehicles for vehicle bodies of rail transit locomotives | |
| CN202413974U (en) | Lightweight aluminum alloy van type semi-trailer | |
| CN220947986U (en) | Railway wagon underframe hanging bracket assembly | |
| CN202783232U (en) | Steel wire rope anti-overcharging device of railway vehicle bogie | |
| CN201419738Y (en) | Groove-shaped longitudinal beam semi-trailer | |
| CN212668992U (en) | Adjustable self-locking crane beam rail anti-loosening fixing device |
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 |