CN103523046B - A kind of coupler draft gear and its reinforcing plate for tensile overload protection - Google Patents
A kind of coupler draft gear and its reinforcing plate for tensile overload protection Download PDFInfo
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- CN103523046B CN103523046B CN201310518589.XA CN201310518589A CN103523046B CN 103523046 B CN103523046 B CN 103523046B CN 201310518589 A CN201310518589 A CN 201310518589A CN 103523046 B CN103523046 B CN 103523046B
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- flexible member
- reinforcing plate
- housing
- draft gear
- couple yoke
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Abstract
The invention discloses a kind of coupler draft gear and its reinforcing plate for tensile overload protection; the reinforcing plate is multiple; and each described reinforcing plate is all inserted in the elastomeric element along the compression direction perpendicular to elastomeric element; the reinforcing plate includes the main part being inserted in inside the elastomeric element and the edge for being arranged at the main part and is raised in the lug boss of the main part that the lug boss constitutes the groove for housing the elastomeric element with the main part.It is arranged such, provided by the present invention for the reinforcing plate of tensile overload protection, when vehicle tension stretch exceedes coupler draft gear bearing capacity, the reinforcing plate that the present invention is provided has preferable intensity, can carry out effective protection to the elastomeric element of buffer.
Description
Technical field
The present invention relates to technical field of vehicle, more particularly relates to a kind of coupler draft gear and its protects for tensile overload
Reinforcing plate.
Background technology
Hitch is one of important device of rolling stock, the compartment of rolling stock is linked together by hitch.In order to
Avoid compartment in the acceleration or deceleration stage, hitch easily occurs hard collision, in prior art, hitch buffering is additionally provided with vehicle
Device, hitch are connected with compartment by coupler draft gear, and coupler draft gear can play cushioning effect.
Coupler draft gear of the prior art, generally uses one-way buffer structure, refer to Fig. 1, Fig. 1 for existing skill
A kind of structural representation of coupler draft gear in art.
Hitch elastomeric element of the prior art include from plate 2, elastomeric element 3, rear draft lug 4, couple yoke 5 and front from
Panel seat 6, when vehicle bears tensile load, when such as train is in acceleration mode, the transfer mode of train longitudinal loading is car
Hook → 5 → elastomeric element of couple yoke 3 → from 2 → front draft lug of plate 6, elastomeric element 3 and from plate 2 be compressed in couple yoke 5 with front
Between follower seat 6.
However, when the tensile load suffered by vehicle exceedes the bearing capacity of elastic buffer, elastomeric element 3 is easy because receiving
It is damaged to excessive compression.
Therefore, elastomeric element impaired problem in tensile overload how is prevented, is become those skilled in the art and is wanted
The important technological problems of solution.
Content of the invention
The invention provides a kind of reinforcing plate for tensile overload protection, when vehicle tension stretch exceedes coupler draft gear
During bearing capacity, the reinforcing plate that the present invention is provided has preferable intensity, and the elastomeric element of buffer effectively can be protected
Shield.Present invention also offers a kind of coupler draft gear, which has a bidirectional buffering performance, no matter car body be towed power effect or
The compressed masterpiece used time, the coupler draft gear can play preferable cushioning effect, it is to avoid the coupler body of vehicle, hook bolt, hook
Tail frame is because directly bearing rigid load, and causes the problem of aggravation fatigue damage.
A kind of reinforcing plate for tensile overload protection that the present invention is provided, the reinforcing plate for multiple, and described in each
Reinforcing plate is all inserted in the elastomeric element along the compression direction perpendicular to elastomeric element, and the reinforcing plate includes to be inserted in institute
State the main part inside elastomeric element and be arranged at the edge of the main part and the lug boss of the main part is raised in, institute
Stating lug boss, the groove for housing the elastomeric element is constituted with the main part.
Present invention also offers a kind of coupler draft gear, including the reinforcing plate for being used for tensile overload protection as above.
Preferably, including：
For the couple yoke being connected with hitch；
For the rear pedestal on car body；
Rear end and the first flexible member that the couple yoke is abutted against, front end is abutted against with the rear pedestal, multiple described
Reinforcing plate is plugged in first flexible member, when car body is towed power, the first flexible member forced compression；
The housing of the rear end of the couple yoke is arranged at, the rear end of the housing is used for being connected with car body, the housing
Mutually concatenated by connecting shaft with the couple yoke, and the couple yoke can be along the axial displacement of the connecting shaft；
It is arranged in the housing, and the second flexible member between the housing and the couple yoke, work as car body
During compressed power, the second flexible member forced compression.
Preferably, be provided with from plate in the couple yoke, the front end of first flexible member by described from plate with described
Rear pedestal is abutted against, and the tail end from plate with hitch is abutted against.
Preferably, the connecting shaft by described from plate, first flexible member, the couple yoke, described second elasticity
Element and the housing are serially connected.
Preferably, the side corresponding with coupler body from plate is provided with cambered surface groove, the cambered surface groove and the coupler body
Sphere end match.
Preferably, the front pedestal for also including on the car body and offseting with the rear end of the housing.
Preferably, first flexible member and second flexible member all include the elastomer of multiple superposed.
Preferably, the elastomer is sheet rubber.
Preferably, the connecting shaft stretches out in the rear end of the housing, and extension is provided with screw thread, and the connecting shaft is led to
Cross the nut being adapted with the screw thread to be connected with car body.
A kind of reinforcing plate for tensile overload protection that the present invention is provided, the reinforcing plate for multiple, and described in each
Reinforcing plate is all inserted in the elastomeric element along the compression direction perpendicular to elastomeric element, and the reinforcing plate includes to be inserted in institute
State the main part inside elastomeric element and be arranged at the edge of the main part and the lug boss of the main part is raised in, institute
Stating lug boss, the groove for housing the elastomeric element is constituted with the main part.
Due to the reinforcing plate that protects provided by the present invention for tensile overload, which is inserted in the main part in elastomeric element
Lug boss is formed around, lug boss defines the groove of accommodating elastomeric element with main part.When vehicle tension stretch exceedes buffering
During the bearing capacity of device, elastomeric element meeting forced compression, now, the lug boss of two adjacent reinforcing plates will be against together,
Elastomeric element further will not be compressed, and then define effective protection to elastomeric element.
Present invention also offers a kind of coupler draft gear, including couple yoke, rear pedestal, the first flexible member, housing and
Second flexible member, using when vehicle hitch be connected with couple yoke, on the car body, the rear end of housing connects rear pedestal
It is connected on car body.The rear end of the first flexible member is abutted against with the couple yoke, and front end is abutted against with the rear pedestal, works as car body
When being towed power, the first flexible member forced compression, and also multiple reinforcing plates are plugged in first flexible member.Shell
Body is arranged at the rear end of the couple yoke, and the housing is mutually concatenated by connecting shaft with the couple yoke, and the couple yoke energy
Enough axial displacements along the connecting shaft；Second flexible member is arranged between the housing and the couple yoke, when car body is received
During compression stress, the second flexible member forced compression.
It should be noted that the "front", "rear" noun of locality is buffered with coupler draft gear and hitch in hitch herein
Device and indication of the car body in the case of normal mounting, wherein, one end of the gib head of relatively close hitch is front, is relatively distant from hitch
Gib head one end be after.
It is arranged such, when car body is towed the masterpiece used time, hitch pulls couple yoke along the forward axial displacement of connecting shaft, by
Abut against with couple yoke in the rear end of the first flexible member, front end is abutted against with rear pedestal, therefore, under the pressure of couple yoke,
First flexible member forced compression, plays preferable cushioning effect.And simultaneously, tractive force is transferred to by couple yoke by connecting shaft
Housing, the rear end of housing are connected on car body, and then pull car body to travel forward.
When the compressed active force of car body, compression stress is transferred to couple yoke by hitch, and compression stress is passed through second by couple yoke
Flexible member is transferred to housing, and compression stress is transferred to car body by housing again.Now, the second flexible member stress is compressed, and then
Preferable cushioning effect can be played.
In sum, the coupler draft gear that the present invention is provided has bidirectional buffering performance, no matter is towed masterpiece in car body
With or the compressed masterpiece used time, the coupler draft gear can play preferable cushioning effect, it is to avoid the coupler body of vehicle, hook
Tongue, couple yoke are because directly bearing rigid load, and cause the problem of aggravation fatigue damage.
Further, since the present invention provide the coupler draft gear with bidirectional buffering performance, be internally provided with multiple as above
Described reinforcing plate, can form effective overload protection to the first flexible member.
Description of the drawings
Fig. 1 is a kind of structural representation of coupler draft gear in prior art；
Fig. 2 is reinforcing plate top view in the specific embodiment of the invention；
Fig. 3 is reinforcing plate sectional view in a kind of specific embodiment of the present invention；
Fig. 4 is reinforcing plate sectional view in present invention another kind specific embodiment；
Fig. 5 is coupler draft gear and hitch connection diagram in the specific embodiment of the invention；
Fig. 6 is coupler draft gear schematic diagram in the specific embodiment of the invention；
In Fig. 1：
Hitch 1, from plate 2, bolster 3, rear draft lug 4, couple yoke 5, front draft lug 6；
In Fig. 2-Fig. 6：
Reinforcing plate 10, main part 10a, lug boss 10b, couple yoke 11, the 12, first elasticity of rear pedestal unit
Part 13, housing 14, the second flexible member 15, hitch 16, connecting shaft 17, from plate 18, front pedestal 19.
Specific embodiment
The reinforcing plate for tensile overload protection that this specific embodiment is provided, when vehicle tension stretch is slow more than hitch
When rushing device bearing capacity, the reinforcing plate that the present invention is provided has preferable intensity, and the elastomeric element of buffer can be had
Effect protection.This specific embodiment additionally provides a kind of coupler draft gear, and which has bidirectional buffering performance, no matter is led in car body
Graviational interaction or compressed masterpiece used time, the coupler draft gear can play preferable cushioning effect, it is to avoid vehicle
Coupler body, hook bolt, couple yoke are because directly bearing rigid load, and cause the problem of aggravation fatigue damage.
In order that those skilled in the art are better understood from technical solution of the present invention, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
It is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment obtained under the premise of creative work is not made by member, belongs to the scope of protection of the invention.
Fig. 2-Fig. 6 is refer to, a kind of reinforcing plate for tensile overload protection that this specific embodiment is provided, reinforcing plate
10 for multiple, and each equal edge of reinforcing plate 10 is inserted in elastomeric element perpendicular to the compression direction of elastomeric element, reinforcing plate 10
Including the main part 10a that is inserted in inside elastomeric element and it is arranged at the edge of main part and is raised in the lug boss of main part
10b, lug boss 10b and main part 10a constitute the groove for housing elastomeric element.
It should be noted that the reinforcing plate 10 that this specific embodiment is provided, the both sides of its main part 10a can be designed with
Lug boss 10b, as shown in Figure 3；Lug boss 10b can also be set in the side of main part 10a, as shown in Figure 4.
Due to the reinforcing plate 10 for tensile overload protection that this specific embodiment is provided, which is inserted in elastomeric element
Main part 10a be formed around the groove that lug boss 10b, lug boss 10a and main part 10b define accommodating elastomeric element.
When vehicle tension stretch exceedes the bearing capacity of buffer, elastomeric element can forced compression, now, adjacent two reinforcing plates
Lug boss 10b will be against together, elastomeric element further will not be compressed, and then define effectively guarantor to elastomeric element
Shield.
This specific embodiment additionally provides a kind of coupler draft gear, including reinforcing plate as above, in this way, this is concrete
The coupler draft gear that embodiment is provided, when in tensile overload, reinforcing plate can carry out effective protection to its elastomeric element.
Preferably, above-mentioned coupler draft gear, also include couple yoke 11, rear pedestal 12, the first flexible member 13, housing 14 with
And second flexible member 15.In assembling, the hitch 16 of vehicle is connected with the couple yoke 11 of coupler draft gear, coupler draft gear
Rear pedestal 12 on the car body, the rear end of housing 14 is connected on car body.The rear end of the first flexible member 13 and couple yoke
11 abut against, and front end is abutted against with rear pedestal 12, when car body is towed power, 13 forced compression of the first flexible member, and Duo Gejia
Strong plate 10 is all plugged in the first flexible member 13.Housing 14 is arranged at the rear end of couple yoke 11, and housing 14 is led to couple yoke 11
Cross connecting shaft 17 mutually to concatenate, and couple yoke 11 can be along the axial displacement of connecting shaft 17；Second flexible member 15 is arranged at housing
Between 14 and couple yoke 11, when the compressed power of car body, 15 forced compression of the second flexible member.
It should be noted that the "front", "rear" noun of locality is all slow with coupler draft gear and hitch in hitch 16 herein
Device and indication of the car body in the case of normal mounting is rushed, wherein, one end of the gib head of relatively close hitch 16 is front, is relatively distant from
After one end of the gib head of hitch 16 is.
Be arranged such, when car body is towed the masterpiece used time, hitch 16 pull couple yoke 11 along connecting shaft 17 axially forward
Displacement, as rear end and the couple yoke 11 of the first flexible member 13 are abutted against, front end is abutted against with rear pedestal 12, therefore, in hook
Under the pressure of tail frame 11,13 forced compression of the first flexible member, plays preferable cushioning effect.And simultaneously, couple yoke 11 passes through
Tractive force is transferred to housing 14 by connecting shaft 17, and the rear end of housing 14 is connected on car body, and then pulls car body to travel forward.
When the compressed active force of car body, compression stress is transferred to couple yoke 11 by hitch 16, and compression stress is led to by couple yoke 11
Cross the second flexible member 15 and housing 14 is transferred to, compression stress is transferred to car body by housing 14 again.Now, the second flexible member 15 is received
Power is compressed, and then can play preferable cushioning effect.
In sum, the coupler draft gear that this specific embodiment is provided has bidirectional buffering performance, no matter receives in car body
Tractive force effect or compressed masterpiece used time, the coupler draft gear can play preferable cushioning effect, it is to avoid vehicle
Coupler body, hook bolt, couple yoke 11 because directly bearing rigid load, and the problem for causing to aggravate fatigue damage.
In the preferred version that this specific embodiment is provided, it is provided with from plate 18 in couple yoke 11, the first flexible member 13
Front end is by abutting against from plate 18 with rear pedestal 12, and the tail end from plate 18 with hitch 16 is abutted against.
When car body compressed masterpiece used time, while compression stress can be transferred directly to couple yoke 11 by hitch 16, hitch
16 tail end also with abut against from plate 18, a part of compression stress is transferred to from plate 18 by hitch 16 by its tail end, so compress
First flexible member 13,13 stress of the first flexible member are compressed with cushioning effect, and power is transferred to by the first flexible member 13
Power is transferred to the second flexible member 15 by couple yoke 11, couple yoke 11 again, 15 forced compression of the second flexible member, is played buffering and is made
With.It is arranged such, when the car body compressed masterpiece used time, the first flexible member 13 and the second flexible member 15 are while compression, has
More preferable buffering effect.
Further, cambered surface groove can also be provided with from the side corresponding with coupler body of plate 18, the tail end of coupler body needs
Spherical is set to, spherical is matched with cambered surface groove.Be arranged such, when coupler body is in compressed power, if with produce from plate 18
Raw relatively rotate, as the two contact surface is cambered surface, the two contact surface is rounder and more smooth, and contact area is larger, it is to avoid the two
Between produce contact stress, and then cause the two wear and tear problem.
In order to increase the stability of buffer, connecting shaft 17 will be from plate 18, the first flexible member 13, couple yoke 11, second
Flexible member 15 and housing 14 are serially connected.It should be noted that from plate 18, the first flexible member 13, couple yoke 11 and
After two flexible members 15 are serially connected in connecting shaft 17, in addition it is also necessary to displacement can be carried out along connecting shaft 17, to press from plate 18
Contract the first flexible member 13, and the first flexible member 13 can produce elastic deformation, and couple yoke 11 can compress the second flexible member
15 and make the second flexible member 15 produce elastic deformation.
It is arranged such, from plate 18, the first flexible member 13, couple yoke 11, the second flexible member 15 and housing 14 by connecting
Spindle 17 is serially connected, and is allowed to form an entirety, improves the assembly reliability between all parts.
In another preferred version that this specific embodiment is provided, coupler draft gear can also include on car body,
And the front pedestal 19 offseted with the rear end of housing 14.
It is arranged such, when car body is in compressive state, housing 14 is offseted with the front pedestal 19 of its rear end, and then will compression
Power is transferred to car body.As the compression stress suffered by car body is larger, the scheme that this specific embodiment is provided, it is prevented from because of housing
14 are directly come in contact with car body and damage the problem of car body.
In order to improve the buffering effect of the first flexible member 13 and the second flexible member 15, the first flexible member 13 and second
Flexible member 15 all includes the elastomer of multiple superposed.It is arranged such, the first flexible member 13 and the second flexible member 15 is set
Sandwich construction is set to, the buffering effect of the first flexible member 13 and the second flexible member 15 can be effectively improved.
Above-mentioned elastomer can be sheet rubber, and the first flexible member 13 and the second flexible member 15 are folded by multilayer rubber
Put and form, sheet rubber itself has preferably elasticity, its buffering effect is preferable.Certainly, above-mentioned elastomer is alternatively other and has
Preferably elastic material, such as silica gel, nylon etc..
In order to easily coupler draft gear is connected with car body, connecting shaft 17 can stretch out in the rear end of housing 14, and
Extension is provided with screw thread, and connecting shaft 17 is connected with car body by the nut being adapted with screw thread.
Be arranged such, can be attached with car body by the nut in connecting shaft 17 and connecting shaft 17, easy to connect can
Lean on.
Carry out to a kind of coupler draft gear provided by the present invention and its for the reinforcing plate of tensile overload protection above
It is discussed in detail, specific case used herein is set forth to the principle of the present invention and embodiment, above example
Illustrate that being only intended to help understands the method for the present invention and its core concept.It should be pointed out that the common skill for the art
For art personnel, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these change
Enter and modify to also fall in the protection domain of the claims in the present invention.
Claims (6)
1. a kind of coupler draft gear, it is characterised in that include：
Reinforcing plate for tensile overload protection；
For the couple yoke being connected with hitch, it is provided with from plate in the couple yoke；
For the rear pedestal on car body；
Rear end and the first flexible member that the couple yoke is abutted against, front end is abutted against with the rear pedestal, multiple reinforcements
Plate is plugged in first flexible member, when car body is towed power, the first flexible member forced compression；
It is arranged at the housing of the rear end of the couple yoke, the rear end of the housing is used for being connected with car body, the housing and institute
State couple yoke mutually to concatenate by connecting shaft, and the couple yoke can be along the axial displacement of the connecting shaft；
It is arranged in the housing, and the second flexible member between the housing and the couple yoke, when car body is pressurized
During contracting power, the second flexible member forced compression；
The reinforcing plate is for multiple, and each described reinforcing plate is all inserted in the bullet along the compression direction perpendicular to elastomeric element
In property part, the reinforcing plate includes the main part being inserted in inside the elastomeric element and is arranged at the side of the main part
Edge and the lug boss of the main part is raised in, the lug boss is constituted with the main part and houses the recessed of the elastomeric element
Groove；The both sides of the main part are equipped with the lug boss；When vehicle tension stretch exceedes the bearing capacity of buffer, elasticity
Part meeting forced compression, the lug boss of two adjacent reinforcing plates can be against together；
The connecting shaft by described from plate, first flexible member, the couple yoke, second flexible member and the shell
Body is serially connected；
The connecting shaft stretches out in the rear end of the housing, and extension is provided with screw thread, the connecting shaft by with the spiral shell
The nut that line is adapted is connected with car body.
2. coupler draft gear as claimed in claim 1, it is characterised in that the front end of first flexible member by described from
Plate is abutted against with the rear pedestal, and the tail end from plate with hitch is abutted against.
3. coupler draft gear as claimed in claim 2, it is characterised in that the side corresponding with coupler body from plate is provided with arc
Face groove, the cambered surface groove are matched with the sphere end of the coupler body.
4. coupler draft gear as claimed in claim 1, it is characterised in that also include on the car body and with described
The front pedestal that the rear end of housing offsets.
5. coupler draft gear as claimed in claim 1, it is characterised in that first flexible member and the second elasticity unit
Part all includes the elastomer of multiple superposed.
6. coupler draft gear as claimed in claim 5, it is characterised in that the elastomer is sheet rubber.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310518589.XA CN103523046B (en) | 2013-10-25 | 2013-10-25 | A kind of coupler draft gear and its reinforcing plate for tensile overload protection |
| US14/648,085 US9707981B2 (en) | 2013-10-25 | 2014-10-20 | Car-coupler buffer and rail way car |
| AU2014339562A AU2014339562B2 (en) | 2013-10-25 | 2014-10-20 | Car-coupler buffer and railway car |
| CA2893181A CA2893181C (en) | 2013-10-25 | 2014-10-20 | Car-coupler buffer and railway car |
| PCT/CN2014/088917 WO2015058662A1 (en) | 2013-10-25 | 2014-10-20 | Car-coupler buffer and railway car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310518589.XA CN103523046B (en) | 2013-10-25 | 2013-10-25 | A kind of coupler draft gear and its reinforcing plate for tensile overload protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103523046A CN103523046A (en) | 2014-01-22 |
| CN103523046B true CN103523046B (en) | 2017-03-08 |
Family
ID=49925511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310518589.XA Active CN103523046B (en) | 2013-10-25 | 2013-10-25 | A kind of coupler draft gear and its reinforcing plate for tensile overload protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103523046B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2893181C (en) | 2013-10-25 | 2018-02-20 | Qiqihar Railway Rolling Stock Co.,Ltd. Dalian R&D Centre | Car-coupler buffer and railway car |
| CN109883598B (en) * | 2019-04-15 | 2021-06-04 | 中车株洲电力机车有限公司 | Method for detecting traction force of rail locomotive |
| CN112977531A (en) * | 2021-04-07 | 2021-06-18 | 中车齐齐哈尔车辆有限公司 | Buffer device and have its vehicle |
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| US3826481A (en) * | 1971-10-18 | 1974-07-30 | Getefo Ges Fur Tech Fortschrit | Spring element for buffer springs |
| JP2000127965A (en) * | 1998-10-19 | 2000-05-09 | East Japan Railway Co | Double type shock absorber |
| CN201410961Y (en) * | 2009-07-02 | 2010-02-24 | 中国北车集团大同电力机车有限责任公司 | Buffer |
| CN101698415A (en) * | 2009-11-09 | 2010-04-28 | 青岛四方车辆研究所有限公司 | Double-action buffer |
| CN202320351U (en) * | 2011-11-22 | 2012-07-11 | 齐齐哈尔轨道交通装备有限责任公司 | Front draft lug and railway truck |
| CN202449006U (en) * | 2012-03-15 | 2012-09-26 | 南车长江车辆有限公司 | Coupler yoke and buffer device comprising same for vehicle coupler |
| CN102717813A (en) * | 2012-05-23 | 2012-10-10 | 西南交通大学 | Heavy-load car coupler device with coupler tail arc contact and elastic stopping functions |
| CN202669839U (en) * | 2012-06-25 | 2013-01-16 | 南车戚墅堰机车车辆工艺研究所有限公司 | Traction and buffer device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE529416A (en) * | 1953-06-08 | |||
| US2763379A (en) * | 1954-04-09 | 1956-09-18 | Miner Inc W H | Rubber shock absorbing mechanisms for railway draft riggings |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3826481A (en) * | 1971-10-18 | 1974-07-30 | Getefo Ges Fur Tech Fortschrit | Spring element for buffer springs |
| JP2000127965A (en) * | 1998-10-19 | 2000-05-09 | East Japan Railway Co | Double type shock absorber |
| CN201410961Y (en) * | 2009-07-02 | 2010-02-24 | 中国北车集团大同电力机车有限责任公司 | Buffer |
| CN101698415A (en) * | 2009-11-09 | 2010-04-28 | 青岛四方车辆研究所有限公司 | Double-action buffer |
| CN202320351U (en) * | 2011-11-22 | 2012-07-11 | 齐齐哈尔轨道交通装备有限责任公司 | Front draft lug and railway truck |
| CN202449006U (en) * | 2012-03-15 | 2012-09-26 | 南车长江车辆有限公司 | Coupler yoke and buffer device comprising same for vehicle coupler |
| CN102717813A (en) * | 2012-05-23 | 2012-10-10 | 西南交通大学 | Heavy-load car coupler device with coupler tail arc contact and elastic stopping functions |
| CN202669839U (en) * | 2012-06-25 | 2013-01-16 | 南车戚墅堰机车车辆工艺研究所有限公司 | Traction and buffer device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103523046A (en) | 2014-01-22 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
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| CB02 | Change of applicant information |
Address after: Guangyuan Lushun Economic Development Zone, Dalian street Dalian city Liaoning province 116000 No. 19 Applicant after: R & D center Dalian Zhongche Qigihar Vehicle Co Ltd Applicant after: CRRC QIQIHAR VEHICLE CO., LTD. Address before: Guangyuan Street Lushun Economic Development Zone Dalian city Liaoning province 116000 No. 19 Applicant before: Dalian research and development centre of Qiqihar orbit Transport equipment, limited liability Co.ltd Applicant before: Qiqihar Railway Rolling Stock Co., Ltd. |
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| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |