CN102562879B - Separated type brake disc for light rail vehicle - Google Patents
Separated type brake disc for light rail vehicle Download PDFInfo
- Publication number
- CN102562879B CN102562879B CN 201210014488 CN201210014488A CN102562879B CN 102562879 B CN102562879 B CN 102562879B CN 201210014488 CN201210014488 CN 201210014488 CN 201210014488 A CN201210014488 A CN 201210014488A CN 102562879 B CN102562879 B CN 102562879B
- Authority
- CN
- China
- Prior art keywords
- disk body
- hub
- disc
- brake disc
- driver slot
- 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
- 230000013011 mating Effects 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 125000006850 spacer group Chemical group 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Landscapes
- Braking Arrangements (AREA)
Abstract
The invention relates to a separated type brake disc for a light rail vehicle. The separated type brake disc for the light rail vehicle comprises a disc hub and two disc bodies, wherein each disc body comprises two semi-disc bodies; two joint surfaces on the inner side surface of each semi-disc body are provided with a semi-ring groove respectively; two connecting rings are arranged in each semi-ring groove of the two semi-disc bodies respectively; positioning bolts penetrate through arc-shaped grooves of all the semi-disc bodies and a positioning bolt mounting hole in a connecting flange of the disc hub and is fastened by a nut; the clearance beta between the joint surfaces of the two semi-disc bodies is 2 to 4mm; at least one concave driving groove is formed on the inner side surface of each semi-disc body along the axial direction; driving pins are arranged in all pin shaft holes of the connecting flange of the disc hub respectively; the two sides of each driving pin are positioned in the driving grooves of the semi-disc bodies on two corresponding sides respectively; the driving pins are connected with two side surfaces of the driving grooves along the circumferential direction respectively; and more than eight mounting holes are formed in the disc hub. The separated type brake disc has a simple structure, is convenient to assemble and is reasonably stressed, the manufacturing cost is reduced, and the service life of the brake disc can be prolonged.
Description
Technical field
The present invention relates to a kind of separated type brake disc for light rail vehicle, belong to the braking technology field of light rail vehicle.
Background technique
Separated type brake disc for light rail vehicle, as the foundation brake parts of light rail vehicle, plays the function that makes the light rail car Brake stop.And the disc braking system is to rely on friction material to be pressed on the rubbing surface of brake disc of rotation and produce friction torque, and friction torque is delivered on wheel eventually, realizes that the braking of light rail vehicle reaches the purpose of parking.At present the light rail vehicle shaft mounted type brake disc is two kinds of structures, and the link that a kind of structure mainly consists of a disk body, hub, spacer ring and screw bolt and nut forms.Structurally, the inner ring of disk body is designed with the connection projection, and be designed with bolt mounting holes at this position, simultaneously hub with also be provided with corresponding bolt mounting holes on spacer ring, screw bolt and nut by axial setting connects disk body, hub and spacer ring, and the brake disc after assembling is bound up by hub and live axle interference fit again.In braking process, the friction torque acted on disk body is passed on hub by bolt, then relies on the frictional force of hub and live axle to be delivered on live axle, realizes Brake stop.But a large amount of utilizations of disc braking system, must bring the brake disc in braking system to change and maintenance, because integrally-built brake disc all needs to unload wheel or hub in maintenance with in changing the brake disc process, repeatedly loading and unloading wheel or hub not only operates very loaded down with trivial details, but also can cause the decline of assembly precision between brake disc and live axle, and affect the stability of braking ability.Its another kind of structure is split type axle-mounted brake disk, the link consisted of two disk bodies, hub, two spacer rings and screw bolt and nut forms, each disk body is connected and composed by two and half disk bodies, with hub and spacer ring, by screw bolt and nut axially is set, is assembled after can be first by bolt, two and half dishes being connected to become to a disk body again; Or after the two halves disk body first locate by locating stud on mating face, then assembled by screw bolt and nut axially is set with hub and spacer ring, the brake disc after assembling is bound up by hub and live axle interference fit again.In braking process, the friction torque acted on disk body is passed on hub by bolt, relies on the frictional force of hub and live axle to be delivered on live axle, realizes Brake stop.Although split type axle-mounted brake disk need not move back wheel or hub when maintenance and replacing, to reach, saves material resources, manpower and financial resources purpose, also has to the assembly technology complexity problem that packaging efficiency is not high.
Above-mentioned two kinds of structure brake discs are owing to all needing to adopt hydraulic equipment and live axle assembling, and assembly process is loaded down with trivial details on the one hand, and hub press-fits with live axle, can increase internal stress between the two, can cause the damage of brake disc and live axle in the time of seriously.On the other hand, owing to partly coiling, gap, place, mating face is very little, and in braking process, brake disc can produce a large amount of heats under the effect of friction torque, the disk body expanded by heating not only can cause the increase of the stress of two halves dish joint, and brake disc also can increase in internal stress radially, and affect working life of brake disc.Bolt on current shaft mounted type brake disc not only plays the effect that connects disk body and hub and spacer ring, but also transmission braking torque, because light rail vehicle is that twocouese travels, therefore the impact force in braking process can cause certain shearing to bolt, can affect equally working life and the braking ability of brake disc.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structurely, easy to assembly, and can improve brake disc a kind of separated type brake disc for light rail vehicle in working life.
The present invention is that the technological scheme achieved the above object is: a kind of separated type brake disc for light rail vehicle, comprise the hub with endoporus and mounting flange, be separately positioned on the disk body of the mounting flange both sides of hub, the mounting flange of two disk bodies and hub is connected by the fastening piece of at least two, each disk body comprises two and half disk bodies, the inner side surface of half and half disk body is disposed radially the radiating fin of a plurality of strips, it is characterized in that: the inner side surface of described half and half disk body is provided with respectively at place, two mating faces half ring groove that runs through mating face, two connecting rings are arranged on respectively in half and half ring groove of two halves disk body the two halves disk body is spacing, and two halves disk body mating face also is provided with axial curve bath, holding down bolt is through the holding down bolt mounting hole fastening nuts on the mounting flange of the curve bath of half and half disk body and hub, gap beta between two halves disk body mating face is at 2～4mm, half and half disk body inner side surface at least is provided with the driver slot for transmitting torque of an indent vertically, the mounting flange of hub is provided with at least two pin shaft holes corresponding to each driver slot on half and half disk body, each drive pin is arranged on respectively in each pin shaft hole of mounting flange of hub, and the both sides of each drive pin lay respectively in the driver slot of each self-corresponding both sides half disk body, at least two drive pins in each driver slot along the circumferential direction join with the two side of driver slot respectively, also be provided with the mounting hole more than eight for being connected with live axle on described hub.
The present invention adopts split-type structural by disk body, in the time of can guaranteeing to overhaul, do not move back in the situation of wheel and hub, be convenient for changing disk body, especially two halves dish of the present invention is connected by two connecting rings that are arranged on half and half disk body inner side surface, designing requirement that can the meeting spatial structure, and be convenient to processing and assembling, can increase substantially the packaging efficiency of brake disc.The present invention's inner side surface on half and half disk body at least is provided with the driver slot for transmitting torque of an indent vertically, therefore be arranged on each pin shaft hole on the mounting flange of hub driver slot corresponding to its both sides, especially in each driver slot, corresponding at least two drive pins along the circumferential direction join with the two side of driver slot respectively, transmit respectively friction torque by two drive pins, therefore bolt is only for connecting disk body and hub, and do not transmit friction torque, prevent that the impact force in braking process from causing shearing to bolt, improve working life and the braking ability of brake disc, and facilitate equally the assembling of brake disc.Brake disc of the present invention adopts disk body and the hub of Split type structure, reduces spacer ring, and the structure of brake disc can further be simplified.The present invention is because hub is provided with the mounting hole be connected with the gear-box live axle, therefore the hub on brake disc is installed on live axle by bolt, at processing, fit on, more easily realize, simplify the brake disc assembly working, improve the up-to-standard rate of assembling, therefore also can reduce manufacture and the assembly cost of brake disc.The present invention is not press-fitted due to the endoporus of hub and live axle and certain distance, be provided with gap beta between two halves disk body mating face in addition, the internal stress produced while therefore making brake disc work can discharge in time multi-direction, and the working life of improving brake disc.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiments of the invention are described in further detail.
Fig. 1 is the structural representation of a kind of separated type brake disc for light rail vehicle of the present invention.
Fig. 2 is the A-A structural representation of Fig. 1.
Fig. 3 is the B-B structural representation of Fig. 1.
Fig. 4 is the structural representation after two halves disk body of the present invention connects by connecting ring.
Wherein: 1-holding down bolt, 2-belleville spring, 3-disk body, 31-half disk body, 32-convex location arc platform, 33-driver slot, 34-half ring groove, 35-bolt mounting holes, 36-radiating fin, 37-curve bath, 4-hub, 41-mounting hole, 42-endoporus, 43-mounting flange, 44-positioning boss, 5-bolt, 6-drive pin, 7-connecting ring, 8-nut.
Embodiment
See shown in Fig. 1～4, a kind of separated type brake disc for light rail vehicle of the present invention, comprise the hub 4 with endoporus 42 and mounting flange 43, be separately positioned on the disk body 3 of mounting flange 43 both sides of hub 4, two disk bodies 3 are connected with mounting flange 43 on hub 4 fastening piece by least two, see Fig. 1, shown in 2 and 4, disk body 3 of the present invention is provided with at least two bolt mounting holes 35, on hub 4 also correspondence be provided with at least two bolt mounting holes, bolt 5 is also fixed by nut 8 through the disk body 3 of both sides and middle hub 4 respectively, the present invention also is provided with belleville spring 2 between bolt head and disk body 3, prevent that bolt 5 from unclamping, see Fig. 1, shown in 4, each disk body 3 of the present invention comprises two and half disk bodies 31, be that brake disc adopts four and half disk bodies 31 and a hub 4, each two halves disk body 31 lays respectively at a side of hub 4, the inner side surface of half and half disk body 31 is disposed radially the radiating fin 36 of a plurality of strips, radiating fin 36 end faces are fitted in mounting flange 43 surfaces on hub 4, can keep the radiating effect that brake disc is good, and the outer side surface of each disk body 3 is rubbing surface, the rubbing surface of amphidisc 3 is relative with clamp respectively, move and clamp two rubbing surfaces generation friction torque by clamp, wheel is stopped operating and reach braking effect.
See shown in Fig. 1～4, the inner side surface of the present invention's half and half disk body 31 is provided with respectively at place, two mating faces half ring groove 34 that runs through mating face, this half ring groove 34 can be semi-circular recesses, half and half ring groove 34 that two connecting rings 7 are arranged on respectively two halves disk body 31 is interior spacing by two halves disk body 31, therefore the connection between two halves disk body 31 is quick and easy, and the processing of half disk body 31 is also very convenient.See Fig. 1, shown in 4, two halves disk body of the present invention 31 mating faces also are provided with axial curve bath 37, holding down bolt 1 is fastening with nut 8 through the holding down bolt mounting hole on the mounting flange 43 of the curve bath 37 of half and half disk body 31 and hub 4, be provided with belleville spring 2 between the bolt head of this holding down bolt 1 and half disk body, in case fastening position bolt 1 unclamps, by holding down bolt 1 and coordinating of curve bath 37 reaching required assembly precision, gap beta between two halves disk body of the present invention 31 mating faces is at 2～4mm, as gap beta can be at 2.2mm, 2.5mm, 2.8mm, 3mm or 3.5mm, the gap beta of controlling by the present invention can make disk body that the space of a stress relief is arranged, and the working life of improving brake disc.
See shown in Fig. 1～4, the present invention's half and half disk body 31 inner side surfaces at least are provided with the driver slot for transmitting torque 33 of an indent vertically, can lay respectively one or two driver slot 33 on half and half disk body 31 of the present invention, driver slot 33 is even along the circumferencial direction of two halves disk body 31.For ease of processing, see shown in Fig. 1～4, driver slot 33 of the present invention is circular trough, and driver slot 33 evenly is provided with 3～5 along the circumferencial direction of disk body 3, or be illustrated in figure 4 three driver slots 33, also can adopt four driver slots 33, or five driver slots 33, the mounting flange 43 of hub 4 is provided with at least two pin shaft holes corresponding to each driver slot 33 on half and half disk body 31, each drive pin 6 is arranged on respectively in each pin shaft hole of mounting flange 43 of hub 4, and the both sides of each drive pin 6 lay respectively in the driver slot 33 of each self-corresponding both sides half disk body 31, at least two drive pins 6 in each driver slot 33 along the circumferential direction join with the two side of driver slot 33 respectively, in vehicle way traffic process, pass through respectively wherein at least two drive pin 6 transmitting torques, solution is not subject to the problem of shearing force for the bolt 5 that connects disk body 3 and hub 4.Drive pin 6 of the present invention can be straight pin, and each driver slot 33 is provided with two drive pins 6 or four drive pins 6, the sidewall of drive pin and driver slot joins, when the light rail vehicle postive direction is travelled, when driver slot 33 is provided with two drive pins 6, one of them drive pin 6 bears frictional force with driver slot 33, while in each driver slot 33, being provided with four drive pins 6, wherein two drive pins 6 bear frictional force with driver slot 33, and light rail vehicle is when opposite direction is travelled, two of the drive pin of opposite side or opposite side drive pins and driver slot bear frictional force, friction torque on disk body 3 reaches on hub 4 by drive pin 6 the most at last.
See shown in Fig. 1,2 and 4, also be provided with the mounting hole more than eight 41 for being connected with live axle on hub 4 of the present invention, mounting hole 41 on this hub 4 can adopt 10～20, endoporus 42 on hub 4 is enclosed within on live axle, make the distance that exists of hub 4 and live axle, radially make brake disc can well discharge internal stress, be arranged on the flange plate of live axle through the mounting hole 41 on hub 4 by a multiple spot connecting bolt.
See shown in Fig. 1,2 and 4, the present invention is for ease of installing, two halves disk body 31 endoporus are provided with convex location arc platform 32 uniform more than three, two halves disk body 31 is located arc platform 32 conveniently and the location of hub 4 by this convex, and hub 4 one side end faces are provided with positioning boss 44, convenient by the end face of hub 4 and live axle location, conveniently brake disc is arranged on live axle.
See shown in Fig. 1～4, when car brakeing, clamp is clamped in the rubbing surface in amphidisc 3 outsides, and the generation friction torque, the drive pin 6 be connected with disk body 3 is delivered to hub 4 by the friction torque of braking, the friction torque by connecting bolt, hub 4 is subject to again is delivered on live axle, finally makes train braking stop.
Claims (4)
1. a separated type brake disc for light rail vehicle, the hub (4) that comprises there is endoporus (42) and mounting flange (43), be separately positioned on the disk body (3) of mounting flange (43) both sides of hub (4), the mounting flange (43) of two disk bodies (3) and hub (4) is connected by the fastening piece of at least two, each disk body (3) comprises two and half disk bodies (31), the inner side surface of half and half disk body (31) is disposed radially the radiating fin (36) of a plurality of strips, it is characterized in that: the inner side surface of described half and half disk body (31) is provided with respectively at place, two mating faces half ring groove (34) that runs through mating face, two connecting rings (7) are arranged on respectively in half and half ring groove (34) of two halves disk body (31) two halves disk body (31) is spacing, and two halves disk body (31) mating face also is provided with axial curve bath (37), holding down bolt (1) through the holding down bolt on the mounting flange (43) of the curve bath (37) of half and half disk body (31) and hub (4) for mounting hole nut (8) fastening, gap beta between two halves disk body (31) mating face is at 2～4mm, half and half disk body (31) inner side surface at least is provided with the driver slot for transmitting torque (33) of an indent vertically, the mounting flange (43) of hub (4) is provided with at least two pin shaft holes corresponding to each driver slot (33) on half and half disk body (31), each drive pin (6) is arranged on respectively in each pin shaft hole of mounting flange (43) of hub (4), and the both sides of each drive pin (6) lay respectively in the driver slot (33) of each self-corresponding both sides half disk bodies (31), at least two drive pins (6) in each driver slot (33) along the circumferential direction join with the two side of driver slot (33) respectively, also be provided with the mounting hole more than eight (41) for being connected with live axle on described hub (4).
2. a kind of separated type brake disc for light rail vehicle according to claim 1, it is characterized in that: described driver slot (33) is circular trough, and driver slot (33) evenly is provided with 3～5 along the circumferencial direction of two halves disk body (31).
3. a kind of separated type brake disc for light rail vehicle according to claim 1, it is characterized in that: described drive pin (6) is straight pin, and each driver slot (33) is provided with two drive pins (6) or four drive pins (6), each drive pin (6) joins by the sidewall of cylndrical surface and driver slot (33).
4. a kind of separated type brake disc for light rail vehicle according to claim 1 is characterized in that: described two halves disk body (31) endoporus is provided with convex location arc platform (32) uniform more than three, and hub (4) one side end faces are provided with positioning boss (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210014488 CN102562879B (en) | 2012-01-17 | 2012-01-17 | Separated type brake disc for light rail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210014488 CN102562879B (en) | 2012-01-17 | 2012-01-17 | Separated type brake disc for light rail vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102562879A CN102562879A (en) | 2012-07-11 |
| CN102562879B true CN102562879B (en) | 2013-12-25 |
Family
ID=46409148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210014488 Active CN102562879B (en) | 2012-01-17 | 2012-01-17 | Separated type brake disc for light rail vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102562879B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443617B (en) * | 2014-08-27 | 2017-12-01 | 常州中车铁马科技实业有限公司 | The attachment structure of rail traffic vehicles wheel dress formula brake disc |
| CN108757350B (en) * | 2018-08-15 | 2023-11-14 | 江苏振江新能源装备股份有限公司 | Novel wind driven generator braking ring |
| CN110513412B (en) * | 2019-09-06 | 2021-08-03 | 大连交通大学 | Aluminum-steel combined type railway vehicle brake disc |
| CN114562526B (en) * | 2022-03-01 | 2024-01-23 | 山东倍瑞恳新材料有限公司 | Split type rail vehicle brake disc convenient to dismantle and change |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB871861A (en) * | 1956-12-29 | 1961-07-05 | Dunlop Rubber Co | Improvements in brake disc assemblies |
| US4120386A (en) * | 1977-05-06 | 1978-10-17 | Airheart Products, Inc. | Multiple piece braking disc assembly |
| GB2034833A (en) * | 1978-10-16 | 1980-06-11 | Lucas Industries Ltd | Disc brakes |
| US5285881A (en) * | 1992-10-22 | 1994-02-15 | Midland Brake, Inc. | Split hinge clutch brake and method to assemble |
| US5612110A (en) * | 1994-03-25 | 1997-03-18 | Gec Alsthom Transport Sa | Multimaterial disk for high-energy braking comprising an assembly of various flanges |
| CN201424032Y (en) * | 2009-07-29 | 2010-03-17 | 常州市铁马科技实业有限公司 | Split wheel-mounted brake disc for railway vehicles |
| JP4701512B2 (en) * | 2000-02-23 | 2011-06-15 | 住友金属工業株式会社 | Brake disc for railway vehicles |
| CN202451668U (en) * | 2012-01-17 | 2012-09-26 | 常州南车铁马科技实业有限公司 | Split brake disc for light rail vehicles |
-
2012
- 2012-01-17 CN CN 201210014488 patent/CN102562879B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB871861A (en) * | 1956-12-29 | 1961-07-05 | Dunlop Rubber Co | Improvements in brake disc assemblies |
| US4120386A (en) * | 1977-05-06 | 1978-10-17 | Airheart Products, Inc. | Multiple piece braking disc assembly |
| GB2034833A (en) * | 1978-10-16 | 1980-06-11 | Lucas Industries Ltd | Disc brakes |
| US5285881A (en) * | 1992-10-22 | 1994-02-15 | Midland Brake, Inc. | Split hinge clutch brake and method to assemble |
| US5612110A (en) * | 1994-03-25 | 1997-03-18 | Gec Alsthom Transport Sa | Multimaterial disk for high-energy braking comprising an assembly of various flanges |
| JP4701512B2 (en) * | 2000-02-23 | 2011-06-15 | 住友金属工業株式会社 | Brake disc for railway vehicles |
| CN201424032Y (en) * | 2009-07-29 | 2010-03-17 | 常州市铁马科技实业有限公司 | Split wheel-mounted brake disc for railway vehicles |
| CN202451668U (en) * | 2012-01-17 | 2012-09-26 | 常州南车铁马科技实业有限公司 | Split brake disc for light rail vehicles |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102562879A (en) | 2012-07-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102562879B (en) | Separated type brake disc for light rail vehicle | |
| CN109236904B (en) | Full-carbon ceramic shaft-mounted brake disc | |
| KR101728024B1 (en) | Wheel hub, brake disk, and wheel bearing assembly provided with the same | |
| CN104989749A (en) | Multi-plate dry brake | |
| CN202451668U (en) | Split brake disc for light rail vehicles | |
| CN103016578A (en) | Brake plate for railway vehicle and railway vehicle | |
| CN102966686A (en) | Brake caliper assembly of electronic parking brake system for vehicle | |
| WO2018103874A1 (en) | Multi-plate clutch for a motor vehicle | |
| EP4063224A1 (en) | Coupling for axle-hung direct drive motor and method for designing rigidity thereof | |
| KR101714087B1 (en) | Apparatus for assembling different materials brake disc | |
| EP3551488B1 (en) | Hybrid traction head for a motor vehicle | |
| CN103171867B (en) | Hold-back device | |
| CN102829171A (en) | Integrated planet carrier | |
| CN101786446A (en) | Braking device with reversed directly-connected caliper of braking disc | |
| KR20150065040A (en) | Separatable brake disk, wheel bearing assembly provided with the same and method of restricting runout of brake disk | |
| CN102506108A (en) | Friction plate | |
| CN201800450U (en) | Three-layer clamping hub | |
| CN113187834B (en) | Outer hoop locking type anti-warp brake disc | |
| CN104033515A (en) | Brake Pad Assembly Having Flange | |
| CN110829644A (en) | Support device, stator module and wind driven generator | |
| CN202863140U (en) | Heavy duty type transmission shaft assembly | |
| CN107215321B (en) | Multi-section self-boosting circumferential holding wheel type brake axle of truck | |
| CN202451667U (en) | Wheel rim brake disc for light rail vehicle | |
| CN218377412U (en) | Wear-resistant brake disc | |
| CN203780511U (en) | Single disc braking device for rear axle of large electric-drive dumper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Guo Libin Inventor after: Guo Xiaohui Inventor after: Qian Kuncai Inventor after: Jiang Hong Inventor after: Jin Wenwei Inventor after: Huang Biao Inventor after: Fang Minggang Inventor before: Guo Libin Inventor before: Guo Xiaohui Inventor before: Qian Kuncai Inventor before: Jin Wenwei Inventor before: Huang Biao Inventor before: Fang Minggang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: GUO LIBIN GUO XIAOHUI QIAN KUNCAI JIN WENWEI HUANG BIAO FANG MINGGANG TO: GUO LIBIN GUO XIAOHUI QIAN KUNCAI JIANG HONG JIN WENWEI HUANG BIAO FANG MINGGANG |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Xue Jia Zhen 213125 north of Jiangsu Province, Changzhou City Shun Road No. 19 Patentee after: CRRC CHANGZHOU TECH-MARK INDUSTRIAL Co.,Ltd. Patentee after: CRRC QISHUYAN INSTITUTE Co.,Ltd. Address before: Xue Jia Zhen 213125 north of Jiangsu Province, Changzhou City Shun Road No. 19 Patentee before: CSR CHANGZHOU TECH-MARK INDUSTRIAL Co.,Ltd. Patentee before: CSR QISHUYAN INSTITUTE Co.,Ltd. |
|
| CP03 | Change of name, title or address |
Address after: Xue Jia Zhen 213125 north of Jiangsu Province, Changzhou City Shun Road No. 19 Patentee after: CRRC CHANGZHOU TECH-MARK INDUSTRIAL Co.,Ltd. Country or region after: China Patentee after: CRRC Qishuyan Locomotive and Rolling Stock Technology Research Institute Co.,Ltd. Address before: Xue Jia Zhen 213125 north of Jiangsu Province, Changzhou City Shun Road No. 19 Patentee before: CRRC CHANGZHOU TECH-MARK INDUSTRIAL Co.,Ltd. Country or region before: China Patentee before: CRRC QISHUYAN INSTITUTE Co.,Ltd. |
|
| CP03 | Change of name, title or address |