CN105276039A - Rail vehicle braking clamp - Google Patents
Rail vehicle braking clamp Download PDFInfo
- Publication number
- CN105276039A CN105276039A CN201510743233.5A CN201510743233A CN105276039A CN 105276039 A CN105276039 A CN 105276039A CN 201510743233 A CN201510743233 A CN 201510743233A CN 105276039 A CN105276039 A CN 105276039A
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- CN
- China
- Prior art keywords
- cylinder body
- piston
- oil cylinder
- rail vehicle
- nut
- 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.)
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Links
- 230000001105 regulatory effect Effects 0.000 claims abstract description 7
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 14
- 230000010354 integration Effects 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 32
- 239000003981 vehicle Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000346 nonvolatile oil Substances 0.000 description 1
Abstract
The invention relates to a rail vehicle braking clamp which is provided with a clamp shell, a lever body, a brake pad, a support pin and an oil cylinder, wherein a cylinder body of the oil cylinder is integrally prepared from the clamp shell, a regulating shaft hole and an oil interface are formed in the cylinder body, a piston sleeves a reset piston, a regulating shaft passes through the regulating shaft hole in one end surface of the cylinder body and a piston hole in the reset piston, one end of a guide rod is connected with an oil cylinder cover, and the relation between the effective area S1 of the reset piston and the effective area S2 of the piston is S1=(1+/-2%)S2. The rail vehicle braking clamp has the advantages that the cylinder body of the oil cylinder of the braking clamp is integrally prepared from the clamp shell, and the internal structure of the oil cylinder is simple, so that the oil cylinder has the advantages of compact structure, high reliability and small size, the size of the braking clamp is greatly reduced, the clamp can be conveniently installed on a wheel set, and due to S1=(1+/-2%)S2, the calculated amount of braking force is reduced, and the potential safety hazard caused by misoperation is effectively avoided.
Description
Technical field
The invention belongs to brake rigging technical field, be specifically related to a kind of rail vehicle braking clamp.
Background technique
Oil cylinder module in existing brake clamp is separate modular, volume shared by oil cylinder makes more greatly caliper body long-pending very large, but original brake clamp fills on the wheel shaft of rail vehicle mostly, because wheel shaft surrounding space is larger, so the excessive not too large impact of volume, along with vehicle technology development, vehicle car floor level reduces, so that get on or off the bus, limited or the vehicle of wheel shaft surrounding space becomes mechanism of independent wheel, brake clamp cannot be positioned on the wheel shaft of rail vehicle, the general wheel that is directly contained in by brake clamp is to outside, but the volume of original brake clamp still can bring a lot of problem.
Moreover, in existing brake clamp, the piston effective area of oil cylinder is greater than the useful area of return piston, oil cylinder just needs complicated calculating to ensure braking force before assembly, and workman assemble time once operate miss wrong in-line interface, make braking force to reach requirement, be just easy to have an accident.
Summary of the invention
The object of this invention is to provide a kind of internal structure simple, compact structure, reliability is high, and volume is little, simplifies braking force and calculates, effectively avoid operate miss to bring the rail vehicle braking clamp of potential safety hazard.
To achieve these goals, technological scheme of the present invention is: a kind of rail vehicle braking clamp, there is clamp housing, leverage, brake lining, anchor mechanism and oil cylinder, leverage is hinged on clamp housing, brake lining and anchor mechanism are arranged on clamp housing, described oil cylinder has cylinder body and cylinder cap, has return piston, piston, guide rod, adjusting axle and elastic component in cylinder body, and its improvement is:
The cylinder body of described oil cylinder is made into integration by clamp housing;
The useful area S of described return piston
1with the useful area S of piston
2relation be S
1=(1 ± 2%) S
2;
Also there is tapered sleeve in the oil cylinder chamber of described cylinder body, adjusting nut, guiding nut composition and spring pedestal, one end of described guiding nut composition is fixed on spring pedestal, the other end and tapered sleeve are slidably matched, and be threaded with adjusting nut, described elastic component is sleeved on tapered sleeve, and one end of elastic component and tapered sleeve offset, the other end and spring pedestal offset, described adjusting nut is between tapered sleeve and adjusting axle, and the periphery of adjusting nut has the annular adjustment conical surface, described tapered sleeve has the taper hole regulating cone match with annular, one end of described adjusting axle has outside thread and pilot hole, and described adjusting axle is through the adjustment axis hole on the end face of cylinder body one end and the piston hole on return piston, and be threaded with adjusting nut, described piston sleeve is contained on return piston, one end of described guide rod and oil cylinder cover load, the other end of guide rod to stretch in pilot hole and with pilot hole axial sliding fit.
In technique scheme, described guiding nut composition comprises guiding nut, set screw nut and lining, described guiding nut and lining load or make integrally, and the endoporus of described lining and tapered sleeve is slidably matched, described set screw nut and lining load.
In technique scheme, one end of described adjusting nut has outside thread, and the internal thread of guiding nut is threaded with the outside thread of adjusting nut.
In technique scheme, the elastic component in described cylinder body is disc spring.
In technique scheme, the set screw nut in the guiding nut composition in described cylinder body has step hole, and the side of described step hole is inner hexagonal hole.
In technique scheme, one end end face of the guide rod in described cylinder body has interior hexagonal counterbore, one end end face of the adjusting axle in described cylinder body also has interior hexagonal counterbore.
In technique scheme, one end of described cylinder body has the hinged ear of suspension rod in two band hanger erection holes, the other end has the anchor fitting seat of band anchor mounting hole, lower end has the brake lining pin erection support of four band brake lining pin mounting holes, one end end face of described cylinder body has the lever erection support regulating axis hole, oil circuit interface and two band lever mounting holes, the other end end face has the accent in oil cylinder chamber, described cylinder cap is contained in having on one end end face of the accent in oil cylinder chamber of cylinder body.
In technique scheme, described cylinder cap is bolted on spring pedestal.
In technique scheme, also have the externally threaded locking bung flange of band, described locking bung flange is threaded on cylinder body, and between oil cylinder cover and spring pedestal, and spring pedestal and locking bung flange offset.
In technique scheme, the other end of described adjusting nut has several bulb plungers, and return piston and bulb plunger offset.
The good effect that the present invention has is: first, and the cylinder body due to the oil cylinder of brake clamp is made into integration by clamp housing, and the internal structure of oil cylinder is simple, compact structure, reliability is high, and volume is little, brake clamp volume is reduced widely, wheel can be contained in very easily to upper; Secondly, due to the useful area S of return piston
1with the useful area S of piston
2relation be S
1=(1 ± 2%) S
2, thus not only reduce the amount of calculation to jaw actuator power, and avoid workman make because of misoperation wrong oil circuit interface braking force cannot reach requirement produce potential safety hazard.
Accompanying drawing explanation
Fig. 1 is cross-sectional schematic of the present invention;
Fig. 2 is the enlarged diagram at A place in Fig. 1;
Fig. 3 is the cross-sectional schematic of return piston in Fig. 1;
Fig. 4 is the cross-sectional schematic of piston in Fig. 1;
Fig. 5 is the cross-sectional schematic of tapered sleeve in Fig. 1;
Fig. 6 is the cross-sectional schematic of adjusting nut composition in Fig. 1;
Fig. 7 is the cross-sectional schematic of Fig. 1 medi-spring base;
Fig. 8 is the cross-sectional schematic of guiding nut composition in Fig. 1;
Fig. 9 is the cross-sectional schematic of set screw nut in Fig. 1;
Figure 10 is the schematic front view of set screw nut in Fig. 1;
Figure 11 is the cross-sectional schematic of oil cylinder cover in Fig. 1;
Figure 12 is the schematic side view of guide rod in Fig. 1;
Figure 13 is that the master of clamp housing in Fig. 1 looks schematic perspective view;
Figure 14 is the rear perspective schematic diagram of clamp housing in Fig. 1;
Figure 15 is that invention is for using state schematic diagram during rail vehicle braking clamp.
Embodiment
Below in conjunction with accompanying drawing and the embodiment that provides, the present invention is further illustrated.
As shown in Fig. 1,13,14,15, a kind of rail vehicle braking clamp, there is clamp housing 12, leverage 8, brake lining 14, anchor mechanism 21 and oil cylinder 13, leverage 8 is hinged on clamp housing 12, brake lining 14 and anchor mechanism 21 are arranged on clamp housing 12, described oil cylinder 13 has cylinder body 13-1 and cylinder cap 34, have return piston 29, piston 30, guide rod 35, adjusting axle 36 and elastic component 37 in cylinder body 13-1, the cylinder body 13-1 of described oil cylinder 13 is made into integration by clamp housing 12.
As shown in Fig. 1,3,4, the useful area S of described return piston 29
1with the useful area S of piston 30
2relation be S
1=(1 ± 2%) S
2.
As Fig. 1, 2, 3, 4, 5, 6, 7, 8, 11, shown in 12, in the oil cylinder chamber 13-6 of described cylinder body 13-1, also there is tapered sleeve 31, adjusting nut 32, guiding nut composition 33 and spring pedestal 38, one end of described guiding nut composition 33 is fixed on spring pedestal 38, the other end and tapered sleeve 31 are slidably matched, and be threaded with adjusting nut 32, described elastic component 37 is sleeved on tapered sleeve 31, and one end of elastic component 37 and tapered sleeve 31 offset, the other end and spring pedestal 38 offset, described adjusting nut 32 is between tapered sleeve 31 and adjusting axle 36, and the periphery of adjusting nut 32 has annular adjustment conical surface 32-2, described tapered sleeve 31 has the taper hole 31-1 regulating conical surface 32-2 to coordinate with annular, one end of described adjusting axle 36 has outside thread 36-1 and pilot hole 36-2, and described adjusting axle 36 is through the adjustment axis hole 13-7 on the end face of cylinder body 13-1 one end and the piston hole 29-1 on return piston 29, and be threaded with adjusting nut 32, described piston 30 is sleeved on return piston 29, one end of described guide rod 35 and oil cylinder cover 34 load, the other end of guide rod 35 to stretch in pilot hole 36-2 and with pilot hole 36-2 axial sliding fit, internal structure is simple, reliability is high, substantially reduce oil cylinder volume.
As shown in Fig. 1,2,8,9,10, described guiding nut composition 33 comprises guiding nut 33-1, set screw nut 33-2 and lining 33-3, described guiding nut 33-1 and lining 33-3 load or make one, the endoporus of described lining 33-3 and tapered sleeve 31 is slidably matched, described set screw nut 33-2 and lining 33-3 load
One end of described adjusting nut 32 has outside thread 32-1, and the internal thread of guiding nut 33-1 is threaded with the outside thread 32-1 of adjusting nut 32.
As shown in Figure 1, 2, the elastic component 37 in described cylinder body 13-1 is disc spring, can effectively store and release energy.
As shown in Fig. 1,8,9,10,12, one end end face of the adjusting axle 36 in described cylinder body 13-1 has interior hexagonal counterbore 36-3.Set screw nut 33-2 in guiding nut composition 33 in described cylinder body 13-1 has step hole 33-2-1, the side of described step hole 33-2-1 is inner hexagonal hole, one end end face of the guide rod 35 in described cylinder body 13-1 has interior hexagonal counterbore 35-1, simplify the structure and be convenient to install.
As Fig. 1, 13, 14, shown in 15, one end of described cylinder body 13-1 has the hinged ear 12-6 of suspension rod of two band hanger erection hole 12-6-1, the other end has the anchor fitting seat 21-1 of band anchor mounting hole 21-1-1, lower end has the brake lining pin erection support 14-1 of four band brake lining pin mounting hole 14-1-1, one end end face of described cylinder body 13-1 has and regulates axis hole 13-7, the lever erection support 8-1 of oil circuit interface 39 and two band lever mounting hole 8-1-1, the other end end face has the accent 13-6-1 of oil cylinder chamber 13-6, described cylinder cap 34 is contained on one end end face with the accent 13-6-1 of oil cylinder chamber 13-6 of cylinder body 13-1.
As shown in Fig. 1,11, described cylinder cap 34 is fixed on spring pedestal 38 by bolt 40.
As shown in Fig. 1,7,11, also there is the externally threaded locking bung flange 42 of band, described locking bung flange 42 is threaded on cylinder body 13-1, and between oil cylinder cover 34 and spring pedestal 38, and spring pedestal 38 and locking bung flange 42 offset, like this, locking bung flange 42 pairs of spring pedestals 38 provide support, serve fixed oil cylinder 13 inner body, prevent the effect that part is deviate from.
As shown in Figure 6, the other end of described adjusting nut 32 has several bulb plungers 41, and return piston 29 and bulb plunger 41 offset.
As shown in Fig. 1,2,15, the present invention in use, cylinder body 13-1 due to clamp is made into integration by clamp housing 12, substantially reduce clamp volume, clamp can be arranged on railway vehicle wheel more easily on the scaffold of top, and return piston 29 is close with the useful area of piston 30, workman can not affect the size that clamp produces braking force when careless wrong oil circuit interface 39, decrease potential safety hazard.
When a vehicle is started, the logical oil of oil cylinder 13, piston 30 is stressed and drive return piston 29 to move to the other end of cylinder body 13-1 together, now the other end of tapered sleeve 31 to cylinder body 13-1 promotes by return piston 29, simultaneously, return piston 29 offsets with the bearing of adjusting nut 32 the other end end, adjusting nut 32 is also moved to the other end of cylinder body 13-1, the adjusting axle 36 that drive is threaded with adjusting nut 32 moves to the other end of cylinder body 13-1, adjusting axle 36 is made to be retracted in cylinder body 13-1, originally the one end being conditioned the leverage 8 of axle 36 jack-up is fallen, the other end of leverage 8 lifts, the brake lining 14 making to be arranged on clamp housing 12 is right away from wheel, no longer to taking turns braking, vehicle can normally travel, now elastic component 37 is by the power of return piston 29, be in compressive state.
When vehicle is braked, oil cylinder 13 outwards oil extraction, piston 30 is no longer stressed, return piston 29 is compression elastic piece 37 no longer, elastic component 37 becomes relieved state from compressive state, when alleviating, promotion tapered sleeve 31 promotes to one end of cylinder body 13-1, annular due to adjusting nut 32 periphery regulates conical surface 32-2 to match with the taper hole 31-1 on tapered sleeve 31, adjusting nut 32 also moves to one end of cylinder body 13-1, the adjusting axle 36 be threaded with adjusting nut 32 is driven to move to one end of cylinder body 13-1, adjusting axle 36 is made to stretch out cylinder body 13-1, now return piston 29 be subject to tapered sleeve 33 thrust drive piston 30 move to one end of cylinder body 13-1, until braking force is delivered to brake lining 14 by leverage 8, make to be arranged on the brake lining 14 on clamp housing 12 and brake disc friction, brake.
Claims (10)
1. a rail vehicle braking clamp, there is clamp housing (12), leverage (8), brake lining (14), anchor mechanism (21) and oil cylinder (13), leverage (8) is hinged on clamp housing (12), brake lining (14) and anchor mechanism (21) are arranged on clamp housing (12), described oil cylinder (13) has cylinder body (13-1) and cylinder cap (34), there is in cylinder body (13-1) return piston (29), piston (30), guide rod (35), adjusting axle (36) and elastic component (37), it is characterized in that:
The cylinder body (13-1) of a, described oil cylinder (13) is made into integration by clamp housing (12);
The useful area S of b, described return piston (29)
1with the useful area S of piston (30)
2relation be S
1=(1 ± 2%) S
2;
C, in the oil cylinder chamber (13-6) of described cylinder body (13-1), also there is tapered sleeve (31), adjusting nut (32), guiding nut composition (33) and spring pedestal (38), one end of described guiding nut composition (33) is fixed on spring pedestal (38), the other end and tapered sleeve (31) are slidably matched, and be threaded with adjusting nut (32), described elastic component (37) is sleeved on tapered sleeve (31), and one end of elastic component (37) and tapered sleeve (31) offset, the other end and spring pedestal (38) offset, described adjusting nut (32) is positioned between tapered sleeve (31) and adjusting axle (36), and the periphery of adjusting nut (32) has the annular adjustment conical surface (32-2), described tapered sleeve (31) has the taper hole (31-1) regulating the conical surface (32-2) to coordinate with annular, one end of described adjusting axle (36) has outside thread (36-1) and pilot hole (36-2), and described adjusting axle (36) is through the adjustment axis hole (13-7) on the end face of cylinder body (13-1) one end and the piston hole (29-1) on return piston (29), and be threaded with adjusting nut (32), described piston (30) is sleeved on return piston (29), one end of described guide rod (35) and oil cylinder cover (34) load, the other end of guide rod (35) to stretch in pilot hole (36-2) and with pilot hole (36-2) axial sliding fit.
2. rail vehicle braking clamp according to claim 1, it is characterized in that: described guiding nut composition (33) comprises guiding nut (33-1), set screw nut (33-2) and lining (33-3), described guiding nut (33-1) is with lining (33-3) load or make one, described lining (33-3) is slidably matched with the endoporus of tapered sleeve (31), described set screw nut (33-2) and lining (33-3) load.
3. rail vehicle braking clamp according to claim 2, is characterized in that: one end of described adjusting nut (32) has outside thread (32-1), and the internal thread of guiding nut (33-1) is threaded with the outside thread (32-1) of adjusting nut (32).
4. rail vehicle braking clamp according to claim 1, is characterized in that: the elastic component (37) in described cylinder body (13-1) is disc spring.
5. rail vehicle braking clamp according to claim 2, it is characterized in that: the set screw nut (33-2) in guiding nut composition (33) in described cylinder body (13-1) has step hole (33-2-1), and the side of described step hole (33-2-1) is inner hexagonal hole.
6. rail vehicle braking clamp according to claim 1, it is characterized in that: one end end face of the guide rod (35) in described cylinder body (13-1) has interior hexagonal counterbore (35-1), one end end face of the adjusting axle (36) in described cylinder body (13-1) also has interior hexagonal counterbore (36-3).
7. rail vehicle braking clamp according to claim 1, it is characterized in that: one end of described cylinder body (13-1) has the hinged ear of suspension rod (12-6) of two bands hanger erection hole (12-6-1), the other end has the anchor fitting seat (21-1) of band anchor mounting hole (21-1-1), lower end has the brake lining pin erection support (14-1) of four bands brake lining pin mounting hole (14-1-1), one end end face of described cylinder body (13-1) has adjustment axis hole (13-7), the lever erection support (8-1) of oil circuit interface (39) and two bands lever mounting hole (8-1-1), the other end end face has the accent (13-6-1) of oil cylinder chamber (13-6), described cylinder cap (34) is contained on one end end face of the accent (13-6-1) with oil cylinder chamber (13-6) of cylinder body (13-1).
8. rail vehicle braking clamp according to claim 1, is characterized in that: described cylinder cap (34) is fixed on spring pedestal (38) by bolt (40).
9. rail vehicle braking clamp according to claim 1, it is characterized in that: also there is the externally threaded locking bung flange (42) of band, described locking bung flange (42) is threaded on cylinder body (13-1), and be positioned between oil cylinder cover (34) and spring pedestal (38), and spring pedestal (38) and locking bung flange (42) offset.
10. rail vehicle braking clamp according to claim 1, is characterized in that: the other end of described adjusting nut (32) has several bulb plungers (41), and return piston (29) and bulb plunger (41) offset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510743233.5A CN105276039B (en) | 2015-11-05 | 2015-11-05 | Rail vehicle braking clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510743233.5A CN105276039B (en) | 2015-11-05 | 2015-11-05 | Rail vehicle braking clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105276039A true CN105276039A (en) | 2016-01-27 |
| CN105276039B CN105276039B (en) | 2017-08-18 |
Family
ID=55145609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510743233.5A Active CN105276039B (en) | 2015-11-05 | 2015-11-05 | Rail vehicle braking clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105276039B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017076339A1 (en) * | 2015-11-05 | 2017-05-11 | 中车戚墅堰机车车辆工艺研究所有限公司 | Lever mechanism and brake clamp device comprising same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6799662B1 (en) * | 2003-05-09 | 2004-10-05 | Hillmar Industries Ltd. | Spring-actuated, hydraulically releasable brakes |
| JP2011190876A (en) * | 2010-03-15 | 2011-09-29 | Nissin Kogyo Co Ltd | Disk brake device |
| CN102338173A (en) * | 2011-09-22 | 2012-02-01 | 芜湖恒坤汽车部件有限公司 | Piston travel adjustment and protection device for brake wheel cylinder |
| CN202896587U (en) * | 2012-09-24 | 2013-04-24 | 常州南车铁马科技实业有限公司 | Passive brake clamp pincers |
| CN103671652A (en) * | 2012-09-24 | 2014-03-26 | 常州南车铁马科技实业有限公司 | Parking oil cylinder with gap adjustment function |
| CN205244202U (en) * | 2015-11-05 | 2016-05-18 | 常州南车铁马科技实业有限公司 | Rail vehicle applies brake clamp |
-
2015
- 2015-11-05 CN CN201510743233.5A patent/CN105276039B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6799662B1 (en) * | 2003-05-09 | 2004-10-05 | Hillmar Industries Ltd. | Spring-actuated, hydraulically releasable brakes |
| JP2011190876A (en) * | 2010-03-15 | 2011-09-29 | Nissin Kogyo Co Ltd | Disk brake device |
| CN102338173A (en) * | 2011-09-22 | 2012-02-01 | 芜湖恒坤汽车部件有限公司 | Piston travel adjustment and protection device for brake wheel cylinder |
| CN202896587U (en) * | 2012-09-24 | 2013-04-24 | 常州南车铁马科技实业有限公司 | Passive brake clamp pincers |
| CN103671652A (en) * | 2012-09-24 | 2014-03-26 | 常州南车铁马科技实业有限公司 | Parking oil cylinder with gap adjustment function |
| CN205244202U (en) * | 2015-11-05 | 2016-05-18 | 常州南车铁马科技实业有限公司 | Rail vehicle applies brake clamp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017076339A1 (en) * | 2015-11-05 | 2017-05-11 | 中车戚墅堰机车车辆工艺研究所有限公司 | Lever mechanism and brake clamp device comprising same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105276039B (en) | 2017-08-18 |
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Address after: 213125 Jiangsu Province, Changzhou New District Xue Zhen Shun Road No. 19 Applicant after: CRRC CHANGZHOU TECH-MARK INDUSTRIAL Co.,Ltd. Address before: 213125 Jiangsu province Changzhou City New District Xue Shun Road No. 19 Applicant before: CSR CHANGZHOU TECH-MARK INDUSTRIAL Co.,Ltd. |
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Inventor after: Du Liqing Inventor after: Lei Guowei Inventor after: Wang Ruiwen Inventor after: Zhu Junhua Inventor after: Wu Anxu Inventor after: Wang Yongsheng Inventor before: Lei Guowei Inventor before: Wang Ruiwen Inventor before: Zhu Junhua Inventor before: Wu Anxu Inventor before: Wang Yongsheng |
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Effective date of registration: 20170719 Address after: 213125 Jiangsu Province, Changzhou New District Xue Zhen Shun Road No. 19 Applicant after: CRRC CHANGZHOU TECH-MARK INDUSTRIAL Co.,Ltd. Applicant after: CRRC QISHUYAN INSTITUTE Co.,Ltd. Address before: 213125 Jiangsu Province, Changzhou New District Xue Zhen Shun Road No. 19 Applicant before: CRRC CHANGZHOU TECH-MARK INDUSTRIAL Co.,Ltd. |
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Address after: 213125 No.19 Shunyuan Road, Xuejia Town, Xinbei District, Changzhou, Jiangsu Province Patentee after: CRRC CHANGZHOU TECH-MARK INDUSTRIAL Co.,Ltd. Guo jiahuodiqu after: Zhong Guo Patentee after: CRRC Qishuyan Locomotive and Rolling Stock Technology Research Institute Co.,Ltd. Address before: 213125 No.19 Shunyuan Road, Xuejia Town, Xinbei District, Changzhou, Jiangsu Province Patentee before: CRRC CHANGZHOU TECH-MARK INDUSTRIAL Co.,Ltd. Guo jiahuodiqu before: Zhong Guo Patentee before: CRRC QISHUYAN INSTITUTE Co.,Ltd. |
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