CN105437892A - Traction device of road-railer - Google Patents
Traction device of road-railer Download PDFInfo
- Publication number
- CN105437892A CN105437892A CN201510970168.XA CN201510970168A CN105437892A CN 105437892 A CN105437892 A CN 105437892A CN 201510970168 A CN201510970168 A CN 201510970168A CN 105437892 A CN105437892 A CN 105437892A
- Authority
- CN
- China
- Prior art keywords
- center pin
- steel plate
- traction seat
- backstop
- rail vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 35
- 239000010959 steel Substances 0.000 claims description 35
- 125000006850 spacer group Chemical group 0.000 claims description 9
- 210000004907 gland Anatomy 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 6
- 238000005096 rolling process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000009412 basement excavation Methods 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
- 238000010586 diagram Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004091 panning Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
- B60D1/30—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
- B60D1/42—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for being adjustable
- B60D1/46—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for being adjustable vertically
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
- Motorcycle And Bicycle Frame (AREA)
Abstract
The invention discloses a traction device of a road-railer. The traction device comprises a linear guide rail module, a traction seat, a central pin, a traction rod, a transverse stop part and a vertical stop part, wherein the traction seat is fixedly connected with the linear guide rail module and has an installation space; the central pin penetrates through the installation space and is fixed to the traction seat in the axial direction; one end of the traction rod is rotationally installed on the part, located in the installation space, of the body of the central pin through a joint bearing, and the other end of the traction rod extends out of the installation space and is provided with a vehicle hook connecting plate used for connecting vehicle hooks; the transverse stop part and the vertical stop part are fixed in the installation space of the traction seat; the rod body of the traction rod can make contact with the transverse stop part and the vertical stop part. The traction device enables the road-railer to safely pass in a linear or curve or slope mode.
Description
Technical field
The present invention relates to a kind of road rail vehicle, particularly relate to combined automobile-used draw gear.
Background technology
Along with the fast development of China railways and urban track traffic, building of all kinds of rolling stock and operating line, the maintenance of railway train arrangement operation and line auxiliary facility, faces the increasing pressure.Road rail vehicle has the advantage that between highway and railway rapid translating runs, and is thus able to building and runing, extensively use in line upkeep at rolling stock.
Road rail vehicle is also called land rail motor moped, can be divided into tractor truck and engineering truck two class according to purposes.Tractor truck running velocity is low, and tractive force is large, hangs the different hitch gib head of automobile type configuration according to connecting, and realizes shunting service and the vehicle operating traction of rolling stock.Engineering truck is equipped with different work equipment by different work requirement, and carry out various operation, as lifting, excavation, snow removing etc., be usually equipped with draw gear, the traction for emergency case is rescued.
Road rail vehicle car end configuration draw gear, connects and hangs the simple and easy hitch of different gib head model, realize and subway, motor-car, and the company of the trains such as locomotive hangs, be applicable in road bureau's section with shunting and rescue task in carshop and railway.
At present, the design of road rail vehicle draw gear is unreasonable, does not possess arrangement for adjusting height, adopts the hitch of core pin unit degree of freedom of shaking the head excessive, causes vehicle propulsion to have unbalance loading danger; The hitch that rigid connecting is hung, hitch degree of freedom of shaking the head is too small, and it is dangerous that little curve negotiating exists derailing.
Summary of the invention
The object of the present invention is to provide and a kind ofly road rail vehicle can be made to realize straight line, curve or the gradient to advance the road rail vehicle draw gear of safety.
The technical scheme realizing the object of the invention is: a kind of road rail vehicle draw gear, comprise line slideway module, traction seat, center pin, draw bar, horizontal backstop and vertical backstop, described traction seat is fixedly connected with line slideway module, traction seat has installing space, described center pin passes installing space and is axially fixed on traction seat, one end of described draw bar be installed in rotation on by oscillating bearing be positioned at installing space center pin pin with it, the other end of draw bar to stretch out outside installing space and with the hitch connecting panel for connecting hitch, described horizontal backstop and vertical backstop are fixed on the installing space of traction seat, the shaft of described draw bar can contact with horizontal backstop and vertical backstop.
Described traction seat is by upper steel plate, lower steel plate and vertical Plate Welding form, described upper steel plate and lower steel plate correspondence have through hole, described center pin inserts through hole, and wherein the through hole of upper steel plate coordinates with the epimere of center pin, and the through hole of lower steel plate coordinates with the spacer be enclosed within center pin, described center pin upper end has plunger, hypomere has outside thread, offsets outside described plunger and upper steel plate, described outside thread is combined with the first nut.
Described center pin also has shoulder block, the inner ring of described oscillating bearing is sleeved on center pin, described inner ring one end and shoulder block offset, one end of the other end and spacer offsets, the outer ring of oscillating bearing is by being arranged on the back-up ring axial restraint on draw bar, and described gland is pressed on the other end of spacer by the first nut tightened on center pin hypomere outside thread.
Described center pin has oilhole, and the entrance of oilhole is positioned at the plunger top of center pin, and is provided with through type forced filling oil cup, the outlet of oilhole be positioned at center pin with oscillating bearing cooperation place.
Described line slideway module comprises line slideway, Mobile base, stepping motor and/or manual rocking handle, described Mobile base and line slideway load, and described stepping motor and/or manual rocking handle are in transmission connection Mobile base.
Mobile base and the traction seat of described line slideway module are bolted to connection.
Described horizontal backstop and vertical backstop are Rubber Parts.
Described horizontal backstop comprises connecting panel, deck, rubber base and screw-nut group, described connecting panel and deck integrally welded, connecting panel is fixedly connected with lower steel plate with the upper steel plate of traction seat respectively, described rubber base is arranged in deck and is fixed on connecting panel by screw-nut group, in the installing space of described traction seat, a horizontal backstop is respectively established in left and right, and the shaft of draw bar passes between the rubber base of two horizontal backstops.
Described vertical backstop comprises steel plate and rubber, described steel plate and rubber are adhesively fixed, vertical backstop to be fixedly connected with traction seat by bolt and to be positioned at installing space, and described traction seat is each up and down fixes a vertical backstop, and the shaft of draw bar passes between the rubber of vertical backstop.
After adopting said structure, the present invention, by arranging line slideway module, utilizes line slideway module can realize the height adjustment of combined automobile-used draw gear; Secondly, be respectively provided with vertical backstop and horizontal backstop with upper and lower both sides about draw bar, ensure that hitch connects the initial attitude hung, improve hitch and even hang safety, and provide degree of freedom of shaking the head and nod to ensure the curve negotiating of coupling vehicle.
Accompanying drawing explanation
The present invention is further detailed explanation for the embodiment provided below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of road rail vehicle draw gear of the present invention;
Fig. 2 is the structural representation of the traction seat in Fig. 1;
Fig. 3 is the structural representation of the center pin in Fig. 1;
Fig. 4 is the cutaway view of Fig. 1 along A-A line;
Fig. 5 is the cutaway view of Fig. 2 along B-B line;
Fig. 6, Fig. 7 are action schematic diagram of the present invention.
Detailed description of the invention
As Figure 1-5, a kind of road rail vehicle draw gear of the present invention, comprise line slideway module 1, traction seat 2, center pin 3, draw bar 5, horizontal backstop 6 and vertical backstop 7, described traction seat 2 is fixedly connected with line slideway module 1, traction seat 2 has installing space 8, described center pin 3 passes installing space 8 and is axially fixed on traction seat 2, one end 5-1 of described draw bar 5 is installed in rotation on it the center pin 3 being positioned at installing space 8 sells by oscillating bearing 4, the other end of draw bar 5 to stretch out outside installing space 8 and with the hitch connecting panel 5-3 for connecting hitch, described horizontal backstop 6 and vertical backstop 7 are fixed on the installing space 8 of traction seat 2, the shaft 5-2 of described draw bar 5 can contact with horizontal backstop 6 and vertical backstop 7.
As shown in Figure 2,3, described traction seat 2 is by upper steel plate 2-1, lower steel plate 2-2 and vertical steel plate 2-3 is welded, described upper steel plate 2-1 and lower steel plate 2-2 correspondence have through hole 2-4, described center pin 3 inserts through hole 2-4, wherein the through hole 2-4 of upper steel plate 2-1 coordinates with the epimere 3-2 of center pin 3, the through hole 2-4 of lower steel plate 2-2 coordinates with the spacer 9 be enclosed within center pin 3, described center pin 3 upper end has plunger 3-1, hypomere has outside thread 3-5, offset outside described plunger 3-1 and upper steel plate 2-1, described outside thread 3-5 is combined with the first nut 12.
As shown in Figure 2,3, described center pin 3 also has shoulder block 3-6, the inner ring of described oscillating bearing 4 is sleeved on center pin 3, described inner ring one end and shoulder block 3-6 offset, one end of the other end and spacer 9 offsets, the outer ring of oscillating bearing 4 is by being arranged on back-up ring 11 axial restraint on draw bar 5, and described gland 10 is pressed on the other end of spacer 9 by the first nut 12 tightened on center pin 3 hypomere outside thread 3-5.Like this, oscillating bearing 4, with regard to axial restraint, prevents end float misalignment.Adopt gland 10 and the first nut 12, be easy for installation and removal.
As shown in Figure 2,3, described center pin 3 has oilhole 3-7, and the entrance 3-4 of oilhole 3-7 is positioned at the plunger 3-1 top of center pin 3, and is provided with through type forced filling oil cup 13, the outlet 3-3 of oilhole 3-7 be positioned at center pin 3 with oscillating bearing 4 cooperation place.Like this, just for oscillating bearing 4 provides channel for oiling.
As shown in Fig. 1,4, described line slideway module 1 comprises line slideway 1-1, Mobile base 1-2, stepping motor 1-3 and/or manual rocking handle 1-4, described Mobile base 1-2 and line slideway 1-1 load, described stepping motor 1-3 and/or manual rocking handle 1-4 is in transmission connection Mobile base 1-2.
As shown in Figure 1, the Mobile base 1-2 of described line slideway module 1 and traction seat 2 are bolted to connection.
As shown in Figure 1, described horizontal backstop 6 and vertical backstop 7 are Rubber Parts.
As shown in Figure 1,5, described horizontal backstop 6 comprises connecting panel 6-3, deck 6-2, rubber base 6-1 and screw-nut group 6-4, described connecting panel 6-3 and deck 6-2 is integrally welded, connecting panel 6-3 is fixedly connected with lower steel plate 2-2 with the upper steel plate 2-1 of traction seat 2 respectively, described rubber base 6-1 is arranged in deck 6-2 and is fixed on connecting panel 6-3 by screw-nut group 6-4, in the installing space 8 of described traction seat 2, a horizontal backstop 6 is respectively established in left and right, and the shaft 5-2 of draw bar 5 passes between the rubber base 6-1 of two horizontal backstops 6.
As shown in Figure 2, described vertical backstop 7 comprises steel plate 7-1 and rubber 7-2, described steel plate 7-1 and rubber 7-2 is adhesively fixed, vertical backstop 7 to be fixedly connected with traction seat 2 by bolt 14 and to be positioned at installing space 8, described traction seat about 2 is each fixes a vertical backstop 7, and the shaft 5-2 of draw bar 5 passes between the rubber 7-2 of vertical backstop 7.
As shown in Fig. 1,2,6,7, when the present invention uses, the hitch connecting panel 5-3 of draw bar 5 is connected with hitch 15, when draw bar about 5 is shaken the head, the horizontal panning angle of connecting panel 6-3 restriction draw bar 5 of horizontal backstop 6 is excessive, and pass through the telescopicing performance of rubber base 6-1, ensure the recovery of draw bar 5 position, the hitch be beneficial to next time connects to be hung; When draw bar about 5 is nodded, it is excessive that vertical backstop 7 limits the vertical angle of nodding of draw bar 5, and the telescopicing performance of rubber 7-2 by vertical backstop 7, ensures the recovery of draw bar 5 position, and the hitch be beneficial to next time connects to be hung.Described line slideway module 1 adopts ball-screw adjusting position, uses stepping motor 1-3 and/or manual rocking handle 1-4 to control, and adjustment hitch height is 660-1000mm.If stepping motor 1-3 breaks down, elevating function can not realize, and can remove the connection of stepping motor 1-3 and leading screw, loads manual rocking handle 1-4 in upper interface, connects the height adjustment that leading screw realizes hitch 15.
Claims (9)
1. a road rail vehicle draw gear, it is characterized in that: comprise line slideway module (1), traction seat (2), center pin (3), draw bar (5), horizontal backstop (6) and vertical backstop (7), described traction seat (2) is fixedly connected with line slideway module (1), traction seat (2) has installing space (8), described center pin (3) is through installing space (8) and be axially fixed on traction seat (2), one end (5-1) of described draw bar (5) be installed in rotation on by oscillating bearing (4) be positioned at installing space (8) center pin (3) pin with it, the other end of draw bar (5) to stretch out outside installing space (8) and with the hitch connecting panel (5-3) for connecting hitch, described horizontal backstop (6) and vertical backstop (7) are fixed on the installing space (8) of traction seat (2), the shaft (5-2) of described draw bar (5) can contact with horizontal backstop (6) and vertical backstop (7).
2. road rail vehicle draw gear according to claim 1, it is characterized in that: described traction seat (2) is by upper steel plate (2-1), lower steel plate (2-2) and vertical steel plate (2-3) are welded, described upper steel plate (2-1) and lower steel plate (2-2) correspondence have through hole (2-4), described center pin (3) inserts through hole (2-4), wherein the through hole (2-4) of upper steel plate (2-1) coordinates with the epimere (3-2) of center pin (3), the through hole (2-4) of lower steel plate (2-2) coordinates with the spacer (9) be enclosed within center pin (3), described center pin (3) upper end has plunger (3-1), hypomere has outside thread (3-5), described plunger (3-1) offsets with upper steel plate (2-1) outside, described outside thread (3-5) is combined with the first nut (12).
3. road rail vehicle draw gear according to claim 2, it is characterized in that: described center pin (3) also has shoulder block (3-6), the inner ring of described oscillating bearing (4) is sleeved on center pin (3), one end and the shoulder block (3-6) of the inner ring of described oscillating bearing (4) offset, one end of the other end and spacer (9) offsets, the outer ring of oscillating bearing (4) is by being arranged on back-up ring (11) axial restraint on draw bar (5), described gland (10) is pressed on the other end of spacer (9) by the first nut (12) tightened on center pin (3) hypomere outside thread (3-5).
4. road rail vehicle draw gear according to claim 2, it is characterized in that: described center pin (3) has oilhole (3-7), the entrance (3-4) of oilhole (3-7) is positioned at plunger (3-1) top of center pin (3), and through type forced filling oil cup (13) is installed, the outlet (3-3) of oilhole (3-7) be positioned at center pin (3) with oscillating bearing (4) cooperation place.
5. road rail vehicle draw gear according to claim 1, it is characterized in that: described line slideway module (1) comprises line slideway (1-1), Mobile base (1-2), stepping motor (1-3) and/or manual rocking handle (1-4), described Mobile base (1-2) and line slideway (1-1) load, described stepping motor (1-3) and/or manual rocking handle (1-4) are in transmission connection Mobile base (1-2).
6. road rail vehicle draw gear according to claim 5, is characterized in that: Mobile base (1-2) and the traction seat (2) of described line slideway module (1) are bolted to connection.
7. road rail vehicle draw gear according to claim 1, is characterized in that: described horizontal backstop (6) and vertical backstop (7) are Rubber Parts.
8. road rail vehicle draw gear according to claim 1, it is characterized in that: described horizontal backstop (6) comprises connecting panel (6-3), deck (6-2), rubber base (6-1) and screw-nut group (6-4), described connecting panel (6-3) is integrally welded with deck (6-2), connecting panel (6-3) is fixedly connected with lower steel plate (2-2) with the upper steel plate (2-1) of traction seat (2) respectively, described rubber base (6-1) is arranged in deck (6-2) and is fixed on connecting panel (6-3) by screw-nut group (6-4), in the installing space (8) of described traction seat (2), a horizontal backstop (6) is respectively established in left and right, the shaft (5-2) of draw bar (5) passes between the rubber base (6-1) of two horizontal backstops (6).
9. road rail vehicle draw gear according to claim 1, it is characterized in that: described vertical backstop (7) comprises steel plate (7-1) and rubber (7-2), described steel plate (7-1) and rubber (7-2) are adhesively fixed, vertical backstop (7) to be fixedly connected with traction seat (2) by bolt (14) and to be positioned at installing space (8), described traction seat (2) is each up and down fixes a vertical backstop (7), and the shaft (5-2) of draw bar (5) passes between the rubber (7-2) of vertical backstop (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510970168.XA CN105437892B (en) | 2015-12-22 | 2015-12-22 | Road rail vehicle draw-gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510970168.XA CN105437892B (en) | 2015-12-22 | 2015-12-22 | Road rail vehicle draw-gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105437892A true CN105437892A (en) | 2016-03-30 |
| CN105437892B CN105437892B (en) | 2017-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510970168.XA Active CN105437892B (en) | 2015-12-22 | 2015-12-22 | Road rail vehicle draw-gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105437892B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106080810A (en) * | 2016-08-16 | 2016-11-09 | 常州市瑞泰工程机械有限公司 | The combined tractor of accumulator |
| CN107933225A (en) * | 2017-12-18 | 2018-04-20 | 湖北时瑞达重型工程机械有限公司 | A kind of road rail vehicle coupler device |
| CN109050568A (en) * | 2018-09-14 | 2018-12-21 | 天津电力机车有限公司 | A kind of automobile-used coupler device even hung with subway with semipermanent draw bar of engineering |
| CN109334699A (en) * | 2018-11-21 | 2019-02-15 | 中车眉山车辆有限公司 | A kind of towing plate structure of combined lorry traction coupling device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4949856A (en) * | 1987-11-27 | 1990-08-21 | Buckeye Steel Castings Co. | Slackless drawbar |
| WO2006047234A3 (en) * | 2004-10-22 | 2007-05-18 | Wabtec Holding Corp | Vertically aligning slackless drawbar |
| CN201512369U (en) * | 2009-09-18 | 2010-06-23 | 武桥重工集团股份有限公司 | Bearing traction pin mechanism capable of carrying out rotation with multiple freedom degree |
| CN103318218A (en) * | 2013-07-08 | 2013-09-25 | 中国北车集团大同电力机车有限责任公司 | Traction pin for locomotive traction device |
| CN204172922U (en) * | 2014-09-25 | 2015-02-25 | 绵阳天和机械制造有限公司 | A kind of urban track traffic adaptor union |
| CN104960540A (en) * | 2015-07-29 | 2015-10-07 | 齐齐哈尔轨道交通装备有限责任公司 | Railway vehicle and joint connector thereof |
| CN205365114U (en) * | 2015-12-22 | 2016-07-06 | 常州市瑞泰工程机械有限公司 | Combined car draw gear |
-
2015
- 2015-12-22 CN CN201510970168.XA patent/CN105437892B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4949856A (en) * | 1987-11-27 | 1990-08-21 | Buckeye Steel Castings Co. | Slackless drawbar |
| WO2006047234A3 (en) * | 2004-10-22 | 2007-05-18 | Wabtec Holding Corp | Vertically aligning slackless drawbar |
| CN201512369U (en) * | 2009-09-18 | 2010-06-23 | 武桥重工集团股份有限公司 | Bearing traction pin mechanism capable of carrying out rotation with multiple freedom degree |
| CN103318218A (en) * | 2013-07-08 | 2013-09-25 | 中国北车集团大同电力机车有限责任公司 | Traction pin for locomotive traction device |
| CN204172922U (en) * | 2014-09-25 | 2015-02-25 | 绵阳天和机械制造有限公司 | A kind of urban track traffic adaptor union |
| CN104960540A (en) * | 2015-07-29 | 2015-10-07 | 齐齐哈尔轨道交通装备有限责任公司 | Railway vehicle and joint connector thereof |
| CN205365114U (en) * | 2015-12-22 | 2016-07-06 | 常州市瑞泰工程机械有限公司 | Combined car draw gear |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106080810A (en) * | 2016-08-16 | 2016-11-09 | 常州市瑞泰工程机械有限公司 | The combined tractor of accumulator |
| CN106080810B (en) * | 2016-08-16 | 2018-07-31 | 常州市瑞泰工程机械有限公司 | The combined tractor of accumulator |
| CN107933225A (en) * | 2017-12-18 | 2018-04-20 | 湖北时瑞达重型工程机械有限公司 | A kind of road rail vehicle coupler device |
| CN109050568A (en) * | 2018-09-14 | 2018-12-21 | 天津电力机车有限公司 | A kind of automobile-used coupler device even hung with subway with semipermanent draw bar of engineering |
| CN109050568B (en) * | 2018-09-14 | 2024-04-26 | 天津电力机车有限公司 | Coupling device for coupling engineering truck with semipermanent traction rod for subway |
| CN109334699A (en) * | 2018-11-21 | 2019-02-15 | 中车眉山车辆有限公司 | A kind of towing plate structure of combined lorry traction coupling device |
| CN109334699B (en) * | 2018-11-21 | 2023-09-22 | 中车眉山车辆有限公司 | Traction plate structure of traction coupling device of highway and railway dual-purpose truck |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105437892B (en) | 2017-10-10 |
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Address after: 213011 No. 99, Wuyi Road, Qishuyan, Changzhou City, Jiangsu Province Patentee after: Changzhou CRRC Ruitai Equipment Technology Co.,Ltd. Patentee after: CRRC QISHUYAN INSTITUTE Co.,Ltd. Address before: 213011 No. 99, Wuyi Road, Qishuyan, Changzhou City, Jiangsu Province Patentee before: CHANGZHOU RUITAI ENGINEERING MACHINERY Co.,Ltd. Patentee before: CRRC QISHUYAN INSTITUTE Co.,Ltd. |
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Address after: 213011 No. 99, Wuyi Road, Qishuyan, Changzhou City, Jiangsu Province 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: 213011 No. 99, Wuyi Road, Qishuyan, Changzhou City, Jiangsu Province 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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