CN101074719A - High-speed carriage-axle gearbox - Google Patents
High-speed carriage-axle gearbox Download PDFInfo
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- CN101074719A CN101074719A CN 200710022533 CN200710022533A CN101074719A CN 101074719 A CN101074719 A CN 101074719A CN 200710022533 CN200710022533 CN 200710022533 CN 200710022533 A CN200710022533 A CN 200710022533A CN 101074719 A CN101074719 A CN 101074719A
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- 230000007935 neutral effect Effects 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000005461 lubrication Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000006578 abscission Effects 0.000 abstract 1
- 239000010687 lubricating oil Substances 0.000 abstract 1
- 238000010587 phase diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention relates to a high velocity axle gear box of the large-scale maintenance machinery for railway, including case, striking gear for blocks changing, castellated shaft, driving toothed gear, mid-gear , dummy shaft, layshaft drive gear, driven gear, pillow, lube oil system and wagon axle. The driving toothed gear engages castellated shaft through the internal spline, and it also can engage or divorce idler gear. The layshaft drive gear engages the driven gear, which is fixed on the wagon axle. The drive gear is a duplicate one including the first and the second, and the idler gear contains the high gear and the low one. The shifting yoke in the striking blocks changing gear connects with the drive gear in a driven motion. And the yoke can make the engagement or abscission between the first gear and the idler gear or between the second gear and the idler one, when it drives the driving toothed gear and shifts toward the axial direction on the castellated shaft. This invention with a sample and rational structure can be manufactured easily and fulfill the request for line feed of a high speed and united hitch moving.
Description
Technical field
The present invention relates to a kind of driving traveling drive train arrangement, the axle gear box of especially relevant railway large-scale maintenance machinery.
Background technique
Axle gear box is the vitals in the travelled by vehicle transmission system, is to be used for transferring power, changes the torque and the rotating speed of outside input, to adapt to the gear of service condition under the different working conditions of vehicle.Fast development along with the China railways cause, the axle gear box of railway large-scale maintenance machinery vehicle, except itself satisfying the low speed job run and at a high speed voluntarily the requirement of (the highest), also will satisfying connection simultaneously and hang operation (the highest extension speed 120km/h) this special requirement from TAS true airspeed 100km/h.And at present no matter be introduce or the axle gear box of the railway large-scale maintenance machinery vehicle of domestic production, owing to following reason, can not satisfy above-mentioned requirements.For example: introduce Austrian Plasser﹠amp; The 08-32 type tamping car auxiliary drive axle gear box of Theurer company is the primary gear speed reducing transmission only, and speed ratio is less, and transmitted power is little, hangs service condition so can not satisfy the high speed traveling with connection; Be the secondary gear gearing down though and for example introduce the axle gear box of the U.S. PGM-48 of Jackson company shaped steel rail grinding machine, the transmission speed ratio scope is bigger, transmitted power increases, but owing to adopt the thin-walled engagement cover have inside and outside spline to carry out engage a gear or off-gear with the gear shaft of band external splines and the gear of band internal spline; thin-walled engagement cover also has the back taper tooth; so thin-walled engagement cover manufacture difficulty is big; and matching part is many on the gear shaft; require high; stressed complexity; difficulty of processing is big, unreasonable structure is difficult to satisfy the service condition that high speed traveling and connection are hung; The axle gear box of homemade for another example SPZ-200 type ballast regulator adopts the secondary gear gearing down, and the transmission speed ratio scope is bigger, but transmitted power is less, and structure is comparatively complicated.Because the gear that it adopts is many, the Transmitted chains of design is very complicated, so it is bulky, and on high speed shaft and jack shaft, respectively be provided with one and apply mechanically the gearshift that oil cylinder provides power, both adopted the gear gearshift of high speed shaft, adopt the engagement cover gearshift with inside and outside spline of jack shaft again, further make structure complicated, be difficult for making, use and keeping in repair.
Summary of the invention
The object of the present invention is to provide a kind of simple and reasonablely, be easy to make, and can satisfy the high speed traveling and connection is hung the high-speed carriage-axle gearbox of service condition.
In order to achieve the above object, technological scheme of the present invention is: a kind of high-speed carriage-axle gearbox, comprise casing, the gearshift toggle mechanism, splined shaft, driving gear, intermediate gear, jack shaft, jackshaft drive pinion, driven gear, bearing, lubrication system and axletree, driving gear is by internal spline and splined shaft engagement, driving gear can or break away from the intermediate gear engagement, jackshaft drive pinion and driven gear engagement, driven gear is fixed on the axletree, driving gear is a duplicate gear, comprise first gear and second gear, intermediate gear comprises high gear and low speed gear, the shift fork of gearshift in the toggle mechanism driving gear that is in transmission connection, when shift fork drive driving gear moves axially on splined shaft, the low speed gear engagement or the disengaging of first gear and the intermediate gear of driving gear be can make, or the high gear engagement or the disengaging of second gear and the intermediate gear of driving gear made.
In order to have improved the precision of driving gear, it is better to make gear engagement transmit performance, improves the flexural strength and the impact resistance of gear, thereby improves the reliability and the working life of gear, and driving gear is assembled by first gear and second gear.
The gearshift toggle mechanism comprise stir cylinder, near switch, connect indication piece, guide rod, shifting fork bar and shift fork, connect indication piece and fixedly connected, and be slidingly matched with guide rod with the piston rod of stirring cylinder and shifting fork bar one end, shift fork is fixed on the other end of shifting fork bar.
In order well to lead for the mobile of shift fork, also be fixed with guide rod on the casing, shift fork slides on the guide rod, is provided with locking structure between shift fork and the guide rod.
Locking structure comprises high speed engage a gear groove, low speed engage a gear groove and the neutral gear groove that guide rod is provided with, and the spring and the steel ball that are provided with in the blind hole of shift fork, and steel ball can be respectively matches with high speed engage a gear groove, low speed engage a gear groove or neutral gear groove on the guide rod.
In order further to guarantee the locking reliability of neutral gear position, guarantee the safety of connection extension operation, slidable fit has alignment pin on the casing, can plug together with the positioning hole on being connected indication piece when alignment pin moves.
In order to guarantee that dialling retaining accurately puts in place, have three near switch, be contained in the piston rod side of stirring cylinder near switch, when driving gear is in high speed engage a gear, low speed engage a gear or neutral position, connect indication piece can be respectively with above-mentioned three close separately near switch.
The two ends of splined shaft and jack shaft all are supported in the bearing on the casing, and the stage casing of axletree has two places to be supported in the bearing on the casing.
After adopting said structure, because driving gear is a duplicate gear, when shift fork drive driving gear moves axially on splined shaft, the low speed gear engagement or the disengaging of first gear and the intermediate gear of driving gear be can make, or the high gear engagement or the disengaging of second gear and the intermediate gear of driving gear made.This has not only satisfied the large speed ratio designing requirement, and has reduced the gear quantity on splined shaft and the jack shaft, and Transmitted chains is simplified, and is simple in structure, has increased transmitted power; Also owing to cancelled the gearshift on the jack shaft and with the engagement cover of inside and outside spline, this just makes structure advantages of simple more, the spatial arrangement compactness is easy to make, use and keep in repair.Gear shift operation of the present invention flexibly, reliable, satisfy fully vehicle low speed job run, the highest from TAS true airspeed be 100km/ high speed voluntarily and the highest extension speed connection that is 120km/h hang the requirement of operation.
Description of drawings
Fig. 1 is the structural representation of high-speed carriage-axle gearbox of the present invention;
Fig. 2 is the phase diagram of the present invention when being in neutral gear position;
Fig. 3 is the phase diagram of the present invention when being in low speed and putting into gear the position;
Fig. 4 is that the present invention is in the phase diagram when putting into gear the position at a high speed;
Fig. 5 is the structural representation of the driving gear among the present invention;
Fig. 6 is a B portion zoomed-in view among Fig. 1;
Fig. 7 is that the A of Fig. 1 is to view;
Fig. 8 is a C portion zoomed-in view among Fig. 7.
Embodiment
The embodiment who provides below in conjunction with accompanying drawing does explanation in further detail to the present invention.
As Fig. 1,2,3,4,5, shown in 7, high-speed carriage-axle gearbox of the present invention, comprise casing 12, the gearshift toggle mechanism, splined shaft 13, driving gear 11, intermediate gear 15, jack shaft 19, jackshaft drive pinion 20, driven gear 16, bearing 18, lubrication system 21 and axletree 17, driving gear 11 is by internal spline and splined shaft 13 engagements, driving gear 11 can or break away from intermediate gear 15 engagements, jackshaft drive pinion 20 and driven gear 16 engagements, driven gear 16 is fixed on the axletree 17, driving gear 11 is duplicate gears, comprise the first gear 11-1 and the second gear 11-2, intermediate gear 15 comprises high gear 15-1 and low speed gear 15-2, the shift fork 6 of gearshift in the toggle mechanism driving gear 11 that is in transmission connection, when shift fork 6 drive driving gears 11 move axially on splined shaft 13, the low speed gear 15-2 engagement or the disengaging of the first gear 11-1 and the intermediate gear 15 of driving gear 11 be can make, or the high gear 15-1 engagement or the disengaging of the second gear 11-2 and the intermediate gear 15 of driving gear 11 made.
Shown in Fig. 1,5, driving gear 11 is assembled by the first gear 11-1 and the second gear 11-2.Because driving gear adopts the processing of split roll flute, interference fit to form, improved the precision of driving gear, it is better to make gear engagement transmit performance, the flexural strength and the impact resistance of gear have been improved, thereby improved the reliability and the working life of gear, also reduced the noise of engagement driving simultaneously.Certainly, driving gear 11 also can be an overall structure.
Shown in Fig. 1,2,3,4,6, the gearshift toggle mechanism comprise stir cylinder 9, near switch 3, connect indication piece 2, guide rod 4, shifting fork bar 5 and shift fork 6, connecting indication piece 2 fixedlys connected with piston rod 9-1 that stirs cylinder 9 and shifting fork bar 5 one ends, and be slidingly matched with guide rod 4, shift fork 6 is fixed on the other end of shifting fork bar 5.Certainly, the gearshift toggle mechanism also can adopt Plasser﹠amp; Gearshift toggle mechanism in the 08-32 type tamping car auxiliary drive axle gear box of Theurer company; Or the gearshift toggle mechanism in the axle gear box of the U.S. PGM-48 of Jackson company shaped steel rail grinding machine.
Shown in Fig. 1,2,3,4,6, well lead in order to give the mobile of shift fork 6, also be fixed with guide rod 10 on the casing 12, shift fork 6 slides on the guide rod 10, is provided with locking structure 7 between shift fork 6 and the guide rod 10.Like this, not only increase the mobile stationarity of shift fork, improved the rigidity of shifting fork bar 5 and shift fork simultaneously, the caused damage of impact when avoiding putting into gear with off-gear, and guaranteed the reliability that gear locks.
As shown in Figure 6, locking structure 7 comprises high speed engage a gear groove 10-1, low speed engage a gear groove 10-3 and the neutral gear groove 10-2 that guide rod 10 is provided with, and the spring 7-2 and the steel ball 7-1 that are provided with in the blind hole 6-1 of shift fork 6, steel ball 7-1 can be respectively matches with high speed engage a gear groove 10-1, low speed engage a gear groove 10-3 or neutral gear groove 10-2 on the guide rod 10.
Shown in Fig. 1,7,8,, guarantee the safety of connection extension operation in order further to guarantee the locking reliability of neutral gear position.Slidable fit has alignment pin 1 on the casing 12, can plug together with the positioning hole 2-1 on being connected indication piece 2 when alignment pin 1 moves.
Shown in Fig. 1,2,3,4, there are three near switch 3, be contained in the piston rod 9-1 side of stirring cylinder 9 near switch 3, when driving gear 11 is in high speed engage a gear, low speed engage a gear or neutral position, connect indication piece 2 can be respectively with above-mentioned three close separately near switch 3.Like this,, make and stir cylinder 9 and accurately move, guarantee to dial retaining and accurately put in place by the switch motion of three positions.
As shown in Figure 1, the two ends of splined shaft 13 and jack shaft 19 all are supported in the bearing 18 on the casing 12, and the stage casing of axletree 17 has two places to be supported in the bearing 18 on the casing 12.
Shown in Fig. 1,2,3,4, when the present invention uses, on splined shaft 13, connect drive unit 14 earlier as oil hydraulic motor, load onto wheel 22 on the axletree 17.During the low speed job run, at first pull out alignment pin 1, give and stir cylinder 9 electrical signal, stirring cylinder 9 obtains being moved to the left behind the electrical signal, connect indication piece 2 and move to low-speed position by the neutral position, by driving shift fork 6 driving gear 11 also is moved to the left, make the low speed gear 15-2 engagement of the first gear 11-1 and the intermediate gear 15 of driving gear 11, spring 7-2 in this moment shift fork 6 locked structures 7, steel ball 7-1 pins, axle gear box is by the engagement of gear 11-1 and gear 15-2, the engagement of gear 20 and gear 16, the torque and the rotating speed of automatic drive device 14 outputs in the future pass to axletree 17 and wheel 22 by certain speed ratio, realize the operation traveling of car load.
At a high speed voluntarily the time, at first pull out alignment pin 1, give and stir cylinder 9 electrical signal, stirring cylinder 9 obtains moving right behind the electrical signal, connect indication piece 2 and move to high speed position, by driving shift fork 6 driving gear 11 is also moved right, make the high gear 15-1 engagement of the second gear 11-2 and the intermediate gear 15 of driving gear 11, spring 7-2 in this moment shift fork 6 locked structures 7, steel ball 7-1 pins, axle gear box is by the engagement of gear 11-2 and gear 15-1, the engagement of gear 20 and gear 16, the torque and the rotating speed of automatic drive device 14 outputs in the future pass to axletree 17 and wheel 22 by certain speed ratio, and the high speed of realization car load voluntarily.
When connection was hung operation, axle gear box should be in neutral gear position, and drive unit 14 is not worked, and does not also allow to be reversed drive.At first give and stir cylinder 9 electrical signal, stirring cylinder 9 obtains moving to the left or to the right behind the electrical signal, connect indication piece 2 and move to the neutral position, by mobile shift fork 6 driving gear 11 is also moved to the left or to the right, driving gear 11 and gear 15-1 or gear 15-2 are broken away from, and spring 7-2, the steel ball 7-1 in the shift fork 6 locked structures 7 pins at this moment.When connection was hung operation, gear 16 oppositely drove jack shaft 19 rotations, and driving gear 11, splined shaft 13 and drive unit 14 all do not rotate, and are in neutral gear position this moment.
Claims (8)
1, a kind of high-speed carriage-axle gearbox, comprise casing (12), gearshift toggle mechanism, splined shaft (13), driving gear (11), intermediate gear (15), jack shaft (19), jackshaft drive pinion (20), driven gear (16), bearing (18), lubrication system (21) and axletree (17), driving gear (11) is by internal spline and splined shaft (13) engagement, driving gear (11) can or break away from intermediate gear (15) engagement, jackshaft drive pinion (20) and driven gear (16) engagement, driven gear (16) is fixed on the axletree (17), it is characterized in that:
A, driving gear (11) are duplicate gears, comprise first gear (11-1) and second gear (11-2),
B, intermediate gear (15) comprise high gear (15-1) and low speed gear (15-2),
C, the shift fork (6) of gearshift in the toggle mechanism driving gear (11) that is in transmission connection, when shift fork (6) drive driving gear (11) moves axially on splined shaft (13), low speed gear (15-2) engagement or the disengaging of first gear (11-1) and the intermediate gear (15) of driving gear (11) be can make, or high gear (15-1) engagement or the disengaging of second gear (11-2) with the intermediate gear (15) of driving gear (11) made.
2, high-speed carriage-axle gearbox according to claim 1 is characterized in that: driving gear (11) is assembled by first gear (11-1) and second gear (11-2).
3, high-speed carriage-axle gearbox according to claim 1 and 2, it is characterized in that: the gearshift toggle mechanism comprise stir cylinder (9), near switch (3), connect indication piece (2), guide rod (4), shifting fork bar (5) and shift fork (6), connecting indication piece (2) fixedlys connected with the piston rod of stirring cylinder (9) (9-1) and shifting fork bar (5) one ends, and be slidingly matched with guide rod (4), shift fork (6) is fixed on the other end of shifting fork bar (5).
4, high-speed carriage-axle gearbox according to claim 3 is characterized in that: also be fixed with guide rod (10) on the casing (12), shift fork (6) slides on the guide rod (10), is provided with locking structure (7) between shift fork (6) and the guide rod (10).
5, high-speed carriage-axle gearbox according to claim 4, it is characterized in that: locking structure (7) comprises high speed engage a gear groove (10-1), low speed engage a gear groove (10-3) and the neutral gear groove (10-2) that guide rod (10) is provided with, and the spring (7-2) and the steel ball (7-1) that are provided with in the blind hole (6-1) of shift fork (6), steel ball (7-1) can be respectively matches with high speed engage a gear groove (10-1), low speed engage a gear groove (10-3) or neutral gear groove (10-2) on the guide rod (10).
6, high-speed carriage-axle gearbox according to claim 3 is characterized in that: casing (12) is gone up slidable fit alignment pin (1), can plug together with the positioning hole (2-1) on being connected indication piece (2) when alignment pin (1) is mobile.
7, high-speed carriage-axle gearbox according to claim 3, it is characterized in that: have three near switch (3), be contained in piston rod (9-1) side of stirring cylinder (9) near switch (3), when driving gear (11) is in high speed engage a gear, low speed engage a gear or neutral position, connect indication piece (2) can be respectively with above-mentioned three close separately near switch (3).
8, high-speed carriage-axle gearbox according to claim 1, it is characterized in that: the two ends of splined shaft (13) and jack shaft (19) all are supported in the bearing (18) on the casing (12), and the stage casing of axletree (17) has two places to be supported in the bearing (18) on the casing (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710022533XA CN100489341C (en) | 2007-05-09 | 2007-05-09 | High-speed carriage-axle gearbox |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710022533XA CN100489341C (en) | 2007-05-09 | 2007-05-09 | High-speed carriage-axle gearbox |
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| CN101074719A true CN101074719A (en) | 2007-11-21 |
| CN100489341C CN100489341C (en) | 2009-05-20 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103047372A (en) * | 2011-10-12 | 2013-04-17 | 哈米尔顿森德斯特兰德公司 | Planet gear for air turbine starter system |
| CN103213576A (en) * | 2012-07-12 | 2013-07-24 | 金鹰重型工程机械有限公司 | Control device for shifting of gearbox for driving traveling |
| CN103225671A (en) * | 2012-12-26 | 2013-07-31 | 金鹰重型工程机械有限公司 | Gear disengagement and engagement device with long and short tooth structure |
| CN103851180A (en) * | 2012-12-06 | 2014-06-11 | 常州市瑞泰工程机械有限公司 | Gear case |
| CN104251296A (en) * | 2013-06-28 | 2014-12-31 | 常州市瑞泰工程机械有限公司 | Hydraulic-hydraumatic comprehensive driving axle gear box |
| CN105033610A (en) * | 2015-07-06 | 2015-11-11 | 南车戚墅堰机车车辆工艺研究所有限公司 | Gearbox large gear and axle assembling method |
| CN106151396A (en) * | 2016-08-25 | 2016-11-23 | 无锡灵鸽机械科技股份有限公司 | Feeding machine gear-box gear |
| CN107195981A (en) * | 2017-05-24 | 2017-09-22 | 深圳吉阳智能科技有限公司 | The pin winding mechanisms of volume three |
| CN109058417A (en) * | 2018-08-28 | 2018-12-21 | 宝鸡中车时代工程机械有限公司 | Rail vehicle gear assembly |
| CN110131369A (en) * | 2018-02-09 | 2019-08-16 | 中国铁建高新装备股份有限公司 | A kind of material transport vehicle axle gear box II |
| CN110131360A (en) * | 2018-02-09 | 2019-08-16 | 中国铁建高新装备股份有限公司 | Material transport vehicle axle gear box |
| CN113614412A (en) * | 2019-03-30 | 2021-11-05 | Tvs电机股份有限公司 | Vehicle and engine assembly thereof |
| CN114439889A (en) * | 2022-02-17 | 2022-05-06 | 中车株洲电力机车有限公司 | Power switching system of rack-and-pinion vehicle |
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2007
- 2007-05-09 CN CNB200710022533XA patent/CN100489341C/en active Active
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103047372A (en) * | 2011-10-12 | 2013-04-17 | 哈米尔顿森德斯特兰德公司 | Planet gear for air turbine starter system |
| US9359957B2 (en) | 2011-10-12 | 2016-06-07 | Hamilton Sundstrand Corporation | Planet gear for air turbine starter system |
| CN103213576A (en) * | 2012-07-12 | 2013-07-24 | 金鹰重型工程机械有限公司 | Control device for shifting of gearbox for driving traveling |
| CN103213576B (en) * | 2012-07-12 | 2015-08-05 | 金鹰重型工程机械有限公司 | A kind of control setup driving the gear case engage a gear of traveling |
| CN103851180B (en) * | 2012-12-06 | 2016-02-24 | 常州市瑞泰工程机械有限公司 | Gear-box |
| CN103851180A (en) * | 2012-12-06 | 2014-06-11 | 常州市瑞泰工程机械有限公司 | Gear case |
| CN103225671A (en) * | 2012-12-26 | 2013-07-31 | 金鹰重型工程机械有限公司 | Gear disengagement and engagement device with long and short tooth structure |
| CN104251296A (en) * | 2013-06-28 | 2014-12-31 | 常州市瑞泰工程机械有限公司 | Hydraulic-hydraumatic comprehensive driving axle gear box |
| CN104251296B (en) * | 2013-06-28 | 2015-06-10 | 常州市瑞泰工程机械有限公司 | Hydraulic-hydraumatic comprehensive driving axle gear box |
| CN105033610A (en) * | 2015-07-06 | 2015-11-11 | 南车戚墅堰机车车辆工艺研究所有限公司 | Gearbox large gear and axle assembling method |
| CN106151396A (en) * | 2016-08-25 | 2016-11-23 | 无锡灵鸽机械科技股份有限公司 | Feeding machine gear-box gear |
| CN107195981A (en) * | 2017-05-24 | 2017-09-22 | 深圳吉阳智能科技有限公司 | The pin winding mechanisms of volume three |
| CN110131369A (en) * | 2018-02-09 | 2019-08-16 | 中国铁建高新装备股份有限公司 | A kind of material transport vehicle axle gear box II |
| CN110131360A (en) * | 2018-02-09 | 2019-08-16 | 中国铁建高新装备股份有限公司 | Material transport vehicle axle gear box |
| CN109058417A (en) * | 2018-08-28 | 2018-12-21 | 宝鸡中车时代工程机械有限公司 | Rail vehicle gear assembly |
| CN113614412A (en) * | 2019-03-30 | 2021-11-05 | Tvs电机股份有限公司 | Vehicle and engine assembly thereof |
| CN114439889A (en) * | 2022-02-17 | 2022-05-06 | 中车株洲电力机车有限公司 | Power switching system of rack-and-pinion vehicle |
| CN114439889B (en) * | 2022-02-17 | 2023-10-13 | 中车株洲电力机车有限公司 | Rack rail car power switching system |
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| CN100489341C (en) | 2009-05-20 |
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Owner name: CHANGZHOU RUITAI CONSTRUCTION MACHINERY CO., LTD. Free format text: FORMER OWNER: NANCHE QISHUYAN MOTOR AND VEHICLE PROCESSING INSTITUTE CO., LTD. Effective date: 20080627 |
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Effective date of registration: 20080627 Address after: Zip code B, block 2, new hi tech park, Xinbei District, Changzhou, Jiangsu, zip code: 213022 Applicant after: CHANGZHOU RUITAI ENGINEERING MACHINERY Co.,Ltd. Co-applicant after: CSR QISHUYAN INSTITUTE Co.,Ltd. Address before: Postal code 1, Wuyi Road, Qishuyan District, Jiangsu, Changzhou: 213011 Applicant before: CSR QISHUYAN INSTITUTE Co.,Ltd. |
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Address after: 213022, Changzhou, Jiangsu New District hi tech park, building B, block Co-patentee after: CRRC QISHUYAN INSTITUTE Co.,Ltd. Patentee after: CHANGZHOU RUITAI ENGINEERING MACHINERY Co.,Ltd. Address before: 213022, Changzhou, Jiangsu New District hi tech park, building B, block Co-patentee before: CSR QISHUYAN INSTITUTE Co.,Ltd. Patentee before: CHANGZHOU RUITAI ENGINEERING MACHINERY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213022, building B, building 2, Xinbei hi tech park, Xinbei District, Jiangsu, Changzhou Patentee after: Changzhou CRRC Ruitai Equipment Technology Co.,Ltd. Patentee after: CRRC QISHUYAN INSTITUTE Co.,Ltd. Address before: 213022, building B, building 2, Xinbei hi tech park, Xinbei District, Jiangsu, Changzhou Patentee before: CHANGZHOU RUITAI ENGINEERING MACHINERY Co.,Ltd. Patentee before: CRRC QISHUYAN INSTITUTE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 213022, building B, building 2, Xinbei hi tech park, Xinbei District, Jiangsu, Changzhou Patentee after: Changzhou CRRC Ruitai Equipment Technology Co.,Ltd. Country or region after: China Patentee after: CRRC Qishuyan Locomotive and Rolling Stock Technology Research Institute Co.,Ltd. Address before: 213022, building B, building 2, Xinbei hi tech park, Xinbei District, Jiangsu, Changzhou Patentee before: Changzhou CRRC Ruitai Equipment Technology Co.,Ltd. Country or region before: China Patentee before: CRRC QISHUYAN INSTITUTE Co.,Ltd. |
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| CP03 | Change of name, title or address |