CN106428040A - Double-power-system railway maintenance vehicle - Google Patents
Double-power-system railway maintenance vehicle Download PDFInfo
- Publication number
- CN106428040A CN106428040A CN201611045843.9A CN201611045843A CN106428040A CN 106428040 A CN106428040 A CN 106428040A CN 201611045843 A CN201611045843 A CN 201611045843A CN 106428040 A CN106428040 A CN 106428040A
- Authority
- CN
- China
- Prior art keywords
- hybrid power
- power system
- railway maintenance
- maintenance car
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C5/00—Locomotives or motor railcars with IC engines or gas turbines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/28—Manufacturing or repairing trolley lines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D15/00—Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways
- B61D15/08—Railway inspection trolleys
- B61D15/12—Railway inspection trolleys power propelled
Abstract
The invention provides a double-power-system railway maintenance vehicle. Two groups of power systems are arranged in a main body of the double-power-system railway maintenance vehicle, and each group of power system includes a diesel engine, a hydraulic transmission box connected with the output end of the diesel engine and a bogie; each bogie includes a wheel pair and a vehicle gear box used for driving the wheel pair. The purpose of machine set redundancy is achieved, even if one of the power systems is out of order, normal running of the vehicle can also be ensured, and the occurrence of an accident of machine breaking is avoided to the greatest extent; at the same time, by the combination of hydraulic transmission and the two power systems, not only running of the vehicle can reach a speed grade of 160 km/h, but also the requirements for stability and shock resistance of the vehicle in high-speed running are also met.
Description
Technical field
The present invention relates to rolling stock technology, more particularly to a kind of hybrid power system railway maintenance car, belongs to vehicle power
Systems technology field.
Background technology
Contact net is one of electric railway key element, and the quality of its state can directly influence electric locomotive or motor-car
The normal operation of group.When contact net needs maintenance, need upkeep operation vehicle that personnel are transported to maintenance place, and by maintenance
Operating personnel is delivered to equipment in Operation Van the position that need to overhaul, so as to complete the upkeep operation of correlation.
In prior art, railway upkeep operation car typically constitutes the use of string tool car group, inspection by multiple feature vehicles
The group that repairs is generally comprised:One tractor, the Operation Van of a mounting operation platform, detection car with detection means,
One flat board crane with crane and the flatcar of loading accessory spare unit;In prior art, tool car group is due to using traction
Car, as power, is low speed walking performance when ensureing maintenance, and the F-Zero of tractor is typically only 80km/h or so, difficult
To meet strict restriction of the high-speed railway to the repair time;And tool car group provides power by a tractor, once power
The system failure, will have accident of locomotive defect to occur.In addition, the total length of existing hybrid power system railway maintenance car group is on a 100m left side
The right side, during operation, the single unit vehicle of different functionalities completes different work;During operation, personnel need to be complete on different single unit vehicles
Become corresponding operation, also need before and after's car to pick and place accessory back and forth, and more time is taken, reduce overhaul efficiency.
Content of the invention
Tool car group arrival rate that the purpose of the present invention mainly solves prior art is slow, accident of locomotive defect easily occur,
The too low problem of operation timeliness rate, so as to provide a kind of novel double-movable Force system railway maintenance car.
For achieving the above object, the present invention provides following technical scheme:
The present invention provides a kind of Novel maintenance car, and two groups including being arranged in the hybrid power system railway maintenance car main body are moved
Force system, includes per the dynamical system is organized:The hydraulic transmission gear box that diesel engine is connected with the outfan of the diesel engine, with
And bogie;The bogie includes:Wheel right, and for drive described wheel to skiving case;The skiving case is connected to institute
State on the output shaft of hydraulic transmission gear box.
Hybrid power system railway maintenance car as above, wherein, described in least one set, dynamical system also includes:It is connected to
The clutch of the free end of diesel engine operation plunger pump connected with the clutch, and with the operation plunger pump
Connected operation hydrostatic motor;The operation hydrostatic motor respectively with dynamical system described in two groups in the skiving case phase
Even.
Hybrid power system railway maintenance car as above, wherein, also includes per the dynamical system is organized:First transfer
Case;First transfer case is arranged between the outfan of the diesel engine and the hydraulic transmission gear box.
Hybrid power system railway maintenance car as above, wherein, also includes per the dynamical system is organized:For to described
Combined type cooling apparatus that the pipeline of dynamical system is cooled down, the first of the Combined type cooling apparatus hydrostatic for driving
Motor, and the first plunger displacement pump;
First plunger displacement pump is arranged on first transfer case, by group described in the first hydrostatic motor drive connection
Combined type cooling apparatus described in box-like chiller.
Hybrid power system railway maintenance car as above, wherein, described in least one set, dynamical system also includes:Second point
Dynamic case;Second transfer case is arranged between the clutch and the operation plunger pump.
Hybrid power system railway maintenance car as above, wherein, the hybrid power system railway maintenance car also includes car
Repair apparatus are carried, the vehicle-mounted repair apparatus are arranged on the top of the hybrid power system railway maintenance car main body, described in two groups
Dynamical system may be contained within the bottom in the hybrid power system railway maintenance car main body.
Hybrid power system railway maintenance car as above, wherein, is provided with for described on second transfer case
Vehicle-mounted repair apparatus provide the hydraulic pump of power.
Hybrid power system railway maintenance car as above, wherein, is provided with gear pump on second transfer case, described
Take turns the hydraulic cylinder to being above provided with for carrying out rigid support to the hybrid power system railway maintenance car main body, the gear pump
It is connected with the hydraulic cylinder.
Hybrid power system railway maintenance car as above, wherein, the vehicle-mounted repair apparatus include:Work high above the ground bucket,
One or more combination in any in upkeep operation platform, wire thread-moving device and Contact Line Detection device.
Hybrid power system railway maintenance car as above, wherein, the two ends of the hybrid power system railway maintenance car are each
A drivers' cab is provided with, the drivers' cab adopts nonmetallic overall drivers' cab.
Beneficial effects of the present invention are:The hybrid power system railway maintenance car of the present invention is reached due to adopting hybrid power system
The purpose of unit redundancy is arrived, wherein in the case of a dynamical system failure, the normal operation of vehicle has also been can guarantee that, maximum
The generation of accident of locomotive defect is avoided to limit;While coordinate the structure of hybrid power system by hydraulic power, car not only can be made
Operation reach the speed class of 160km/h, also meet stationarity and shock resistance of the vehicle in high-speed cruising and require.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for technology description is had to be briefly described, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is the hybrid power system railway maintenance car power system architecture figure of the embodiment of the present invention;
Fig. 2 uses function layout drawing for the hybrid power system railway maintenance car of the embodiment of the present invention.
Specific embodiment
Below the preferred embodiments of the present invention are described in detail so that advantages and features of the invention can be easier to by
It will be appreciated by those skilled in the art that apparent clearly defining so as to make to protection scope of the present invention.
Fig. 1 for the embodiment of the present invention hybrid power system railway maintenance car power system architecture figure, the present embodiment double acting
Force system railway maintenance car includes hybrid power system railway maintenance car main body, also includes two groups of dynamical systems, i.e. the first dynamical system
System and the second dynamical system, two groups of dynamical systems are may be contained within this maintenance vehicle main body;First dynamical system includes:Diesel engine 1,
Hydraulic transmission gear box 2 and bogie 3;Hydraulic transmission gear box 2 is connected with the outfan of diesel engine 1;Bogie 3 includes:Wheel is right
32 and skiving case 31;Wheel in bogie 3 typically adopts two groups to 32 and skiving case 31;Skiving case 31 can be right with wheel
32 is coaxial, for driving wheel to 32;Skiving case 31 is connected on the output shaft of hydraulic transmission gear box 2.Hydraulic transmission gear box 2 with
Between diesel engine 1, between hydraulic transmission gear box 2 and skiving case 31, all it is driven using universal drive shaft.
Second dynamical system includes:Diesel engine 1 ', hydraulic transmission gear box 2 ' and bogie 3 ';Bogie 3 ' includes:Take turns to 32 '
With skiving case 31 ';The annexation of the above-mentioned each part in the second dynamical system is identical with the first dynamical system.
The hybrid power system railway maintenance car of the embodiment of the present invention has reached unit redundancy due to adopting hybrid power system
Purpose, wherein in the case of a dynamical system failure, also can guarantee that the normal operation of vehicle, avoids machine to greatest extent
The generation of broken accident;Under high-speed case, hybrid power system can be run simultaneously, while coordinate the knot of bogie by hydraulic power
Structure, not only can make the operation of vehicle reach the speed class of 160km/h, also meet vehicle steady in high-speed cruising
Property and shock resistance require.Due to the structure using hybrid power system and hydraulic power, the tool car stability of the present invention and operation
Efficiency is increased substantially, and can reserve more times for upkeep operation in limited maintenance widow time, it is also possible to indirectly
Increase the operating radius of overhaul service, and reduce the recoverable amount of user maintenance vehicle;If necessary, the tool car of the present invention is acceptable
Use as relief car.
On the basis of above-described embodiment, the first dynamical system of the embodiment of the present invention also includes:Clutch 4, operation post
Plug pump 5 and operation hydrostatic motor 6;Clutch 4 is connected to the free end of diesel engine 1, operation plunger pump 5 and clutch 4
It is connected, operation hydrostatic motor 6 is connected with operation plunger pump 5;Operation hydrostatic motor 6 connects the first dynamical system respectively
Skiving case 31 and the second dynamical system in skiving case 31 ', operation hydrostatic motor 6 be used for simultaneously drive the first dynamical system
Skiving case 31 ' in the skiving case 31 and the second dynamical system of system is carrying out low speed walking.Due to needing to protect during tool car operation
The state of the accurate traveling of low speed is held, the present embodiment moves operation plunger pump using the free end band of diesel engine to drive operation hydrostatic
Motor, so that the low cruise speed of tool car may remain in 0~10km/h.Second dynamical system of the embodiment of the present invention
System can also adopt the free end band of diesel engine to move operation plunger pump to drive the system structure of operation hydrostatic motor, so may be used
Further to improve performance of the tool car when low speed is walked, an operation plunger pump 5 is simultaneously driven on two bogies
Hydrostatic motor 6, can make low speed more steady when walking;But generally, for cost consideration, only wherein one move
This structure is adopted in Force system.
On the basis of above-described embodiment, the prioritization scheme of the embodiment of the present invention is:First dynamical system also includes:First
Transfer case 10, the first plunger displacement pump 11, the first hydrostatic motor 12 and Combined type cooling apparatus 13;First hydrostatic motor 12 is used
In driving Combined type cooling apparatus 13;First transfer case 10 be arranged at diesel engine 1 outfan and hydraulic transmission gear box 2 it
Between;First plunger displacement pump 11 is arranged on the first transfer case 10, and the first plunger displacement pump 11 is connected by the first hydrostatic motor 12
Combined type cooling apparatus 13;Combined type cooling apparatus 13 include radiator fan 14, and the first plunger displacement pump 11 and first is hydrostatic
Motor 12 can realize the high-speed rotation of radiator fan 14;Combined type cooling apparatus 13 are used for the pipe to the first dynamical system
Road is cooled down, for example, the hydraulic oil of hydraulic system is carried out cooling down, diesel engine is carried out radiating, larger to other caloric values
Component is cooled down.On first transfer case 10, other power take-off mechanisms can be set.Generally, the first transfer case 10
Auxiliary box structure with clutch function is all adopted.
Second dynamical system also includes:First transfer case 10 ', the first plunger displacement pump 11 ', the first hydrostatic motor 12 ' and group
Box-like chiller 13 ';The annexation and function of the above-mentioned each part in the second dynamical system all with the first dynamical system phase
With.
Fig. 2 for the embodiment of the present invention hybrid power system railway maintenance car use function layout drawing, the present embodiment double acting
Force system railway maintenance car also includes vehicle-mounted repair apparatus, and vehicle-mounted repair apparatus are arranged on this hybrid power system railway maintenance car master
The top of body, carries out maintenance activity to facilitate in roof;Dynamical system is arranged at this hybrid power system railway maintenance car main body
Bottom, is not take up interior space as far as possible.Vehicle-mounted repair apparatus are needed installed in roof, ordinary circumstance according to actual maintenance activity
Under include:Any in work high above the ground bucket 84, upkeep operation platform 83, wire thread-moving device 82 and Contact Line Detection device 81
A kind of or its combination.The two ends of hybrid power system railway maintenance car the first drivers' cab 70 of each setting and the second drivers' cab 70 ', two
Individual drivers' cab is all using using nonmetallic integrally-built drivers' cab(I.e. drivers' cab adopts integrated design, and using nonmetallic
Material global formation), in car body, it has been sequentially arranged 85, workplace 86, welfare quarter 87 and meeting room 88 etc. between spare part storage.Such as
Fig. 1, controller 100 is used for unifying diesel engine 1, hydraulic transmission gear box 2, diesel engine 1 ' and the parts such as hydraulic transmission gear box 2 '
Control, controller 100 is generally located in driver room.
On the basis of above-described embodiment, the further prioritization scheme of the embodiment of the present invention is:First dynamical system is also wrapped
Include:Second transfer case 7;Second transfer case 7 is arranged between clutch 4 and operation plunger pump 5;Set on second transfer case 7
Hydraulic pump 8 is equipped with, and hydraulic pump 8 is used for power being provided to vehicle-mounted repair apparatus 80;Work high above the ground in vehicle-mounted repair apparatus 80
Bucket 84 and upkeep operation platform 83, their hydraulic power source all has hydraulic pump 8 to provide.Acceptable on second transfer case 7
Other power take-off mechanisms are set.Wherein, it is provided with gear pump 9 on the second transfer case 7, takes turns to being provided with for inspection on 32
The main body that repairs carries out the hydraulic cylinder of rigid support, and gear pump 9 is connected with this hydraulic cylinder.Due to the needs of vehicle operation, turn to
The damping means such as spring or cylinder are provided with frame, when tool car carries out operation using work high above the ground bucket, larger
Overhanging can produce excessive tilting moment;Safety and stability for ensureing work high above the ground bucket must adopt non-yielding prop to car body, this
Embodiment is arranged to take turns and the effectiveness in vibration suppression of vibration insulating system can be disconnected by upper hydraulic cylinder, keeps the rigid support of vehicle, from
And stable work high above the ground bucket.
The hybrid power system railway maintenance car of the present invention coordinates the structure of hybrid power system using hydraulic power, can carry significantly
High operating personnel reaches the speed of operation field, in limited maintenance widow time, can reserve more times for examining
Repair operation, it is also possible to increase indirectly the radius of overhaul service, and reduce the recoverable amount of user maintenance vehicle;The joining of hybrid power system
Put, it is ensured that tool car is occurred without the unimpeded accident of locomotive defect of impact rail track, and makes when single dynamical system fails
Tool car has higher pull strength, can use as breakdown lorry;The hybrid power system railway maintenance car of the present invention is in low speed
Driven using hydrostatic motor during walking, possess good low-speed performance, during maintenance, several work equipment can be configured as needed,
Required institute during maintainer's operation can be met functional;The position of dynamical system and repair apparatus arranges and can provide spaciousness
Interior space, to meet the needs for carrying spare unit and accessory;Also, as wheel is to being above provided with hydraulic cylinder, car body can be carried out
Rigid support, it is ensured that the stability during suspension bucket operation of roof high-altitude.The hybrid power system railway maintenance car of the present invention is by all inspections
Repair correlation function to be integrated in a car, the space shared by car stowage is not only reduced, also make whole upkeep operation process
In each link more efficiently and quick.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and any
Without the change or replacement that creative work is expected, should all be included within the scope of the present invention.Therefore, the present invention
The protection domain that protection domain should be limited by claims is defined.
Claims (10)
1. a kind of hybrid power system railway maintenance car, including hybrid power system railway maintenance car main body, it is characterised in that also include
Two groups of dynamical systems being arranged in the hybrid power system railway maintenance car main body, include per the dynamical system is organized:Diesel oil
The hydraulic transmission gear box that machine is connected with the outfan of the diesel engine, and bogie;The bogie includes:Wheel is right, and
For drive described wheel to skiving case;The skiving case is connected on the output shaft of the hydraulic transmission gear box.
2. the hybrid power system railway maintenance car according to claim 1, it is characterised in that dynamical system described in least one set
System also includes:Be connected to the clutch operation plug pump connected with the clutch of the free end of the diesel engine, and with institute
State the connected operation hydrostatic motor of operation plunger pump;The operation hydrostatic motor respectively with dynamical system described in two groups in
The skiving case is connected.
3. the hybrid power system railway maintenance car according to claim 2, it is characterised in that per organizing the dynamical system also
Including:First transfer case, first transfer case is arranged between the outfan of the diesel engine and the hydraulic transmission gear box.
4. the hybrid power system railway maintenance car according to claim 3, it is characterised in that per organizing the dynamical system also
Including:For the pipeline of the dynamical system is cooled down Combined type cooling apparatus, for drive the combination type cool down
First hydrostatic motor of device, and the first plunger displacement pump;First plunger displacement pump is arranged on first transfer case, described
First plunger displacement pump connects the Combined type cooling apparatus by first hydrostatic motor.
5. according to the arbitrary described hybrid power system railway maintenance car of claim 2-4, it is characterised in that described in least one set
Dynamical system also includes:Second transfer case;Second transfer case is arranged between the clutch and the operation plunger pump.
6. the hybrid power system railway maintenance car according to claim 5, it is characterised in that the hybrid power system railway
Tool car also includes vehicle-mounted repair apparatus, and the vehicle-mounted repair apparatus are arranged on the hybrid power system railway maintenance car main body
Top, dynamical system described in two groups may be contained within the bottom in the hybrid power system railway maintenance car main body.
7. the hybrid power system railway maintenance car according to claim 6, it is characterised in that set on second transfer case
The hydraulic pump being equipped with for the vehicle-mounted repair apparatus are provided with power.
8. the hybrid power system railway maintenance car according to claim 5, it is characterised in that set on second transfer case
Gear pump is equipped with, the wheel is to the liquid that is above provided with for carrying out rigid support to the hybrid power system railway maintenance car main body
Cylinder pressure, the gear pump is connected with the hydraulic cylinder.
9. the hybrid power system railway maintenance car according to claim 6 or 7, it is characterised in that the vehicle-mounted maintenance sets
Standby include:Any one in work high above the ground bucket, upkeep operation platform, wire thread-moving device and Contact Line Detection device or its group
Close.
10. according to the arbitrary described hybrid power system railway maintenance car of claim 6-8, it is characterised in that the double dynamical system
The two ends of system railway maintenance car are each provided with a drivers' cab, and the drivers' cab adopts nonmetallic overall drivers' cab.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611045843.9A CN106428040A (en) | 2016-11-24 | 2016-11-24 | Double-power-system railway maintenance vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611045843.9A CN106428040A (en) | 2016-11-24 | 2016-11-24 | Double-power-system railway maintenance vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
CN106428040A true CN106428040A (en) | 2017-02-22 |
Family
ID=58218287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201611045843.9A Pending CN106428040A (en) | 2016-11-24 | 2016-11-24 | Double-power-system railway maintenance vehicle |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106428040A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107585169A (en) * | 2017-10-17 | 2018-01-16 | 中车资阳机车有限公司 | A kind of diesel electric dual power source main-line locomotive cooling system and control method |
CN108177656A (en) * | 2017-12-20 | 2018-06-19 | 中车青岛四方机车车辆股份有限公司 | Train traction method and device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102121857A (en) * | 2011-01-20 | 2011-07-13 | 常州市万航工矿设备有限公司 | Hydraulic dynamometer test device of diesel locomotive |
CN103213525A (en) * | 2013-04-18 | 2013-07-24 | 宝鸡南车时代工程机械有限公司 | Multi-working-face contact network work vehicle |
CN103448739A (en) * | 2013-08-29 | 2013-12-18 | 北京二七轨道交通装备有限责任公司 | Railway maintenance car |
CN203419139U (en) * | 2013-08-29 | 2014-02-05 | 北京二七轨道交通装备有限责任公司 | Railway overhaul car |
-
2016
- 2016-11-24 CN CN201611045843.9A patent/CN106428040A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102121857A (en) * | 2011-01-20 | 2011-07-13 | 常州市万航工矿设备有限公司 | Hydraulic dynamometer test device of diesel locomotive |
CN103213525A (en) * | 2013-04-18 | 2013-07-24 | 宝鸡南车时代工程机械有限公司 | Multi-working-face contact network work vehicle |
CN103448739A (en) * | 2013-08-29 | 2013-12-18 | 北京二七轨道交通装备有限责任公司 | Railway maintenance car |
CN203419139U (en) * | 2013-08-29 | 2014-02-05 | 北京二七轨道交通装备有限责任公司 | Railway overhaul car |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107585169A (en) * | 2017-10-17 | 2018-01-16 | 中车资阳机车有限公司 | A kind of diesel electric dual power source main-line locomotive cooling system and control method |
CN107585169B (en) * | 2017-10-17 | 2023-08-18 | 中车资阳机车有限公司 | Internal combustion-electric power double-power-source main locomotive cooling system and control method |
CN108177656A (en) * | 2017-12-20 | 2018-06-19 | 中车青岛四方机车车辆股份有限公司 | Train traction method and device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103963637B (en) | A kind of Integral steering drive axle and electric vehicle for vehicle | |
CN104554323B (en) | A kind of straddle-type monorail Operation Van of two pairs of wheel constructions | |
CN103448739B (en) | Railway maintenance car | |
CN1944146A (en) | High speed magnetic suspension train travel control system | |
CN105235758B (en) | The rubber tire low-floor intelligent track train that a kind of power decentralized type track follows | |
CN103129568A (en) | Multifunctional overhead line system work vehicle | |
CN104260736A (en) | Multifunctional flaw detection vehicle for highland railway steel rail | |
CN203419139U (en) | Railway overhaul car | |
CN204341079U (en) | A kind of straddle-type monorail Operation Van of two pairs of wheel constructions | |
CN204212015U (en) | A kind of railway track profile milling-grinding equipment | |
CN106428040A (en) | Double-power-system railway maintenance vehicle | |
JP2007336779A (en) | Electric vehicle drive | |
CN103786734A (en) | Self-powered metro steel rail grinding wagon | |
CN104859733A (en) | Semi-trailer combination vehicle with drive | |
CN105437892A (en) | Traction device of road-railer | |
CN101934694A (en) | Amphibious 'bus' vehicle-ship | |
CN112141141A (en) | Multifunctional subway operation vehicle | |
CN109278771B (en) | Multi-platform contact net operation vehicle | |
CN105625120A (en) | Railway track profile shape modifying vehicle and modifying method as well as corresponding equipment | |
CN204455744U (en) | A kind of railway track profile trimming unit and corresponding equipment thereof | |
CN103612644A (en) | Bo steering frame used for electric shunting locomotive | |
CN204037419U (en) | A kind of steel plate transport car | |
CN106394569A (en) | Heavy rail car suitable for high altitude area | |
CN105846260B (en) | Highway railway combined transport lorry power device and electrifying method | |
CN105625122A (en) | Railway steel rail profile shape renovating unit and corresponding device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |
|
WD01 | Invention patent application deemed withdrawn after publication |