CN112744247A - Secondary bogie of railway vehicle - Google Patents
Secondary bogie of railway vehicle Download PDFInfo
- Publication number
- CN112744247A CN112744247A CN201911038019.4A CN201911038019A CN112744247A CN 112744247 A CN112744247 A CN 112744247A CN 201911038019 A CN201911038019 A CN 201911038019A CN 112744247 A CN112744247 A CN 112744247A
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- Prior art keywords
- bogie
- railway vehicle
- traction
- frame
- seat
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/04—Bolster supports or mountings
- B61F5/08—Bolster supports or mountings incorporating rubber springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C9/00—Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
- B61C9/38—Transmission systems in or for locomotives or motor railcars with electric motor propulsion
- B61C9/48—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension
- B61C9/50—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension in bogies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/04—Bolster supports or mountings
- B61F5/12—Bolster supports or mountings incorporating dampers
- B61F5/127—Bolster supports or mountings incorporating dampers with fluid as a damping medium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
- B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
- B61F5/301—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating metal springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
- B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
- B61F5/308—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating damping devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/50—Other details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
- B61H11/14—Combinations of different types of brakes, e.g. brake blocks acting on wheel-rim combined with disc brakes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
本发明提供一种铁路车辆二系转向架，包括转向架构架、牵引装置、一系悬挂装置、二系悬挂装置和基础制动装置，还包括驱动装置、接地装置、测速装置及管路附属配件。本发明提出的一种铁路车辆二系转向架，设计新颖独特，结构简单，能很好的为地铁工程车辆提供走行及作业需求，同时满足地铁工程车辆作业人员的乘坐舒适性。
The invention provides a railway vehicle secondary bogie, including a bogie frame, a traction device, a primary suspension device, a secondary suspension device and a basic braking device, as well as a driving device, a grounding device, a speed measuring device and piping accessories . The second-series bogie of a railway vehicle proposed by the invention has a novel and unique design and a simple structure, which can well provide the running and operation requirements for the subway engineering vehicle, and at the same time satisfy the riding comfort of the subway engineering vehicle operator.
Description
Technical Field
The invention relates to the technical field of railway maintenance machinery design and manufacture, in particular to a railway vehicle secondary bogie.
Background
At present, the railway engineering vehicle in China adopts various bogie structures, and some bogies cannot adapt to subway lines after being installed, so that the operation requirement of the whole machine cannot be met. In addition, the dynamic performance is poor, the critical speed is low, and the driving speed and the riding comfort of the subway engineering vehicle are greatly influenced.
The invention patent application with the publication number of 101823491A discloses an A-type metro vehicle bogie, wherein a primary suspension system adopts a structural mode of an overhead spiral steel spring, a rotating arm rubber joint and a rubber pad, a secondary suspension system adopts a structure of an air spring, an anti-rolling special role and a height adjusting device, a traction device adopts a single-pull-rod push-pull type structure, a driving device adopts a tooth-shaped coupling, a full-suspension traction alternating current motor and a half-suspension bearing type gear box structure, and two wheel pair axle boxes 1 of the bogie are longitudinally connected with a framework 2 through rotating arm positioning rubber joints 13. The bogie has the defects that the position of the mounting seat on the bogie frame needs to be fully processed, the process is complex, and the mounting seat can be processed only by large-scale processing equipment; the rubber joint of the middle suspension rotating arm and the spiral steel spring are mounted by special tools, and the on-site maintenance of a client can be carried out by the special tools, otherwise, the maintenance can be carried out only by contacting with a manufacturer; the shaft coupling installation that motor and gear box are connected needs special frock just can install, and the field does not have special frock and can't carry out the dismouting.
Disclosure of Invention
In order to solve the technical problems, the secondary bogie of the railway vehicle is novel and unique in design and simple in structure, can well provide walking and operation requirements for subway engineering vehicles, and simultaneously meets the riding comfort of operators of the subway engineering vehicles.
The invention aims to provide a secondary bogie of a railway vehicle, which comprises a bogie frame, a traction device, a primary suspension device, a secondary suspension device, a foundation brake device, a driving device, a grounding device, a speed measuring device and pipeline auxiliary accessories.
Preferably, the bogie frame is an integrally welded frame.
In any of the above aspects, preferably, the bogie frame is composed of side beams, cross beams, axle box mounting seats, motor mounting seats, gear box hanging seats and transverse stoppers.
In any of the above solutions, preferably, the traction device is composed of a traction seat and a traction pull rod, and the traction seat is connected with the frame.
In any of the above schemes, preferably, the traction device can transmit traction power for the whole vehicle.
In any of the above solutions, it is preferable that the primary suspension device is composed of an inner cylindrical coil steel spring, an outer cylindrical coil steel spring, and a vertical hydraulic damper.
In any of the above solutions, it is preferable that the secondary suspension is composed of rubber side bearings, lateral elastic stops and lateral hydraulic dampers.
In any of the above solutions, it is preferable that the secondary suspension upper portion is connected to the vehicle body for effectively carrying the weight of the vehicle body.
In any of the above aspects, preferably, the foundation brake is in the form of a single-sided shoe tread brake.
In any of the above solutions it is preferred that 4 unit brakes are arranged per bogie inside the bogie wheelset, the unit brakes being connected with the bogie frame by a safety chain.
In any of the above solutions, it is preferable that the driving device is composed of a traction motor, a coupling, a gear box, and a wheel pair.
In any of the above solutions it is preferred that the traction motor is rigidly suspended from the frame and that the power is transmitted via a coupling to the axle gearbox and then to the wheel set.
In any of the above aspects, preferably, the grounding device is fixed on the outer end face of the axle box, and the carbon brush can move left and right in the fixed brush box groove.
In any of the above aspects, preferably, the grounding device is held in contact with a grounding copper seat rotating with the axle under the pressure of a spring.
In any of the above aspects, preferably, the speed measuring device is mounted on the axle box cover.
The invention provides a railway vehicle secondary bogie which has higher integration level and modularization, is convenient to maintain, has stronger device expandability, is convenient to form and is easy to form batch compression cost; the installation space of each part can be maximally compressed, and the lower space is larger, so that the maintenance is convenient; different power modes can be provided according to the requirements of the whole vehicle; and a secondary vibration damping mode is adopted, so that the dynamic performance of the whole vehicle can be improved, and the riding comfort of personnel is improved.
Drawings
Fig. 1 is a block diagram of a preferred embodiment of a railway vehicle secondary bogie according to the present invention.
Fig. 2 is a view showing a construction of a bogie frame of the embodiment shown in fig. 1 of the railway vehicle secondary bogie according to the present invention.
Fig. 3 is a view showing a construction of a traction apparatus of the embodiment shown in fig. 1 of the railway vehicle secondary bogie according to the present invention.
Fig. 4 is a view showing a construction of a primary suspension apparatus of the embodiment of fig. 1 of the railway vehicle secondary bogie according to the present invention.
Fig. 5 is a view showing a secondary suspension apparatus of the embodiment shown in fig. 1 of the railway vehicle secondary bogie according to the present invention.
Fig. 6 is a structural view of a foundation brake device of the embodiment shown in fig. 1 of the railway vehicle secondary bogie according to the present invention.
Fig. 7 is a structural view of a driving apparatus of the embodiment of the railway vehicle secondary bogie according to the present invention as shown in fig. 1.
Fig. 8 is a structural view of a ground engaging apparatus of the embodiment of fig. 1 of a railway vehicle secondary bogie according to the present invention.
Fig. 9 is a view showing a configuration of a speed measuring device of the embodiment of fig. 1 of the railway vehicle secondary bogie according to the present invention.
Detailed Description
The invention is further illustrated with reference to the figures and the specific examples.
Example one
A secondary bogie for railway vehicles comprises a bogie frame, a traction device, a primary suspension device, a secondary suspension device, a foundation brake device, a driving device, a grounding device, a speed measuring device and pipeline accessory accessories.
The bogie frame is an integral welding type frame.
The bogie frame consists of side beams, cross beams, axle box mounting seats, motor mounting seats, gear box hanging seats and transverse stoppers.
The traction device consists of a traction seat and a traction pull rod, and the traction seat is connected with the frame.
The traction device can transmit traction power for the whole vehicle.
The primary suspension device consists of an inner cylindrical spiral steel spring, an outer cylindrical spiral steel spring and a vertical hydraulic shock absorber.
The secondary suspension consists of a rubber side bearing, a transverse elastic stopper and a transverse hydraulic damper.
The secondary suspension upper part is connected with the vehicle body and used for effectively bearing the weight of the vehicle body.
The foundation brake device is in a single-side brake shoe tread braking mode.
4 unit brakes are arranged inside the bogie wheel pairs per bogie, the unit brakes being connected to the bogie frame by a safety chain.
The driving device consists of a traction motor, a coupling, a gear box and a wheel pair.
The traction motor is rigidly suspended from the frame and transmits power to the axle gearbox and then to the wheel pair through the coupling.
The grounding device is fixed on the outer end face of the axle box, and the carbon brush can move left and right in the fixed brush box groove.
The grounding device is kept in contact with a grounding copper seat rotating along with the vehicle axle under the pressure of the spring.
The speed measuring device is installed on the axle box cover.
Example two
The embodiment provides a related device of a railway engineering vehicle secondary bogie.
The secondary bogie mainly comprises a bogie frame, a traction device, a primary suspension device, a secondary suspension device, a foundation braking device, a driving device, a grounding device box, a speed measuring device and pipeline accessory accessories.
The second system bogie frame adopts an integral welding type frame, and the frame comprises side beams, cross beams, an axle box mounting seat, a motor mounting seat, a gear box hanging seat, a transverse stop and the like; the traction device consists of a traction seat and a traction pull rod, the traction seat is connected with the frame, and the traction device can effectively transmit traction power to the whole vehicle; the primary suspension device consists of an inner cylindrical spiral steel spring, an outer cylindrical spiral steel spring and a vertical hydraulic shock absorber; the secondary suspension consists of a rubber side bearing, a transverse elastic stop and a transverse hydraulic shock absorber, and the upper part of the secondary suspension is connected with the vehicle body, so that the weight of the vehicle body can be effectively borne; the foundation brake adopts a single-side brake shoe tread brake form, 4 unit brakes are arranged on each bogie at the inner side of a bogie wheel pair, and the unit brakes are connected with a bogie frame through a safety chain to prevent the fastening bolts from falling off when the fastening bolts fail; the driving device consists of a traction motor, a coupling, a gear box and a wheel pair, wherein the traction motor is rigidly suspended on the framework, and power is transmitted to the axle gear box and then to the wheel pair through the coupling, so that the power transmission of the bogie is realized; the grounding device is fixed on the outer end face of the axle box, the carbon brush can move left and right in the fixed brush box groove, and the carbon brush is kept in contact with the grounding copper seat rotating along with the axle under the pressure of the spring. The current flows to the brush box of the grounding device from the vehicle body grounding wire, then flows to the grounding copper seat and the axle through the carbon brush body, and finally flows to the ground through the wheels and the steel rail. The purpose is to ensure that grounding current does not pass through the axle box bearing, prevent the axle box bearing from electric corrosion and play a role in protecting the axle box bearing; the speed measuring device can be conveniently arranged on the axle box cover, and the transmission part can overcome working conditions such as non-concentricity in installation, driving clearance and the like.
The bogie frame is formed by welding box beam structures, the strength calculation of the bogie frame meets the specification of TB/T2368, and the bogie frame has the advantages of good strength performance, light weight, low cost and the like.
The bogie motor mounting mode adopts a lower hanging type design, and the design is changed into the design that the motor is hung safely and cannot fall off and the appearance is concise and attractive.
The traction device meets the requirement of power transmission, the structural design is reasonable, the layout effectively provides spaces for installing other accessories, the whole bogie is reasonable in layout, and the design is simple, attractive and elegant.
EXAMPLE III
The subway secondary bogie in the embodiment adopts a brand-new design, and has the advantages of simple structure, reasonable layout, high integratability, high universality and low cost, and the strength meets the requirement; the bogie frame adopts a brand new design, has large space, can effectively integrate all part mounting seats, and has strength meeting the requirements of the whole vehicle; the secondary suspension device side bearing adopts a brand-new design, and the matching performance of the appearance structure and the rigidity with the whole vehicle is high; motor mounting means, motor mount pad adopt the formula of sinking design, have the location boss in the middle of the mount pad, even bolt fracture motor can not drop in time.
As shown in fig. 1, the bogie for the secondary train of the railway vehicle is suitable for the metro engineering vehicle, is an important part of a running system of the metro engineering vehicle, and comprises a bogie frame 1, a traction device 2, a primary suspension device 3, a secondary suspension device 4, a foundation brake device 5, a driving device 6, a grounding device 7 and a speed measuring device 8.
As shown in figure 2, a bogie frame 1 mainly comprises cross beams 1-1 and side beams 1-2, and the bogie frame 1 further comprises a motor mounting seat bogie frame 1-4, an axle box mounting seat 1-5, a secondary suspension mounting seat 1-6, a vertical oil pressure shock absorber mounting seat 1-7, a spring mounting seat 1-8, an axle box mounting seat 1-9, a gear box hanging seat 1-10 and a basic brake mounting seat 1-11. The cross beam is composed of small longitudinal beams 1-4 and small cross beams, and is mainly formed by welding Q355qE steel plates, and the strength of the framework is ensured to meet the strength requirement through simulation analysis and a static strength test.
As shown in figure 3, the traction device 2 consists of a traction seat 2-1, a traction pull rod 2-2 and a transverse oleo damper traction seat 2-3. The bogie is connected with the frame through a traction seat 2-1 to transfer traction force between the bogie and the frame.
As shown in figure 4, a primary suspension device 3 is shown, and the primary suspension device 3 consists of an inner spiral steel spring 3-1, an outer spiral steel spring 3-1, a vertical oil pressure shock absorber 3-2 and a rubber pad 3-3 and mainly directly has the function of wheel-rail contact shock absorption.
Fig. 5 shows a secondary suspension device 4, and the secondary suspension device 4 is used for achieving the effect of secondary vibration damping and providing comfortable riding stability for passengers on the vehicle.
As shown in fig. 6, the foundation brake device 5 provides braking and parking braking for the entire vehicle during driving.
As shown in fig. 7, the driving device 6 for the two-wheeled bogie transmits torque to the gear box through the motor to provide driving force for the wheel set, and the mode is environment-friendly and can effectively reduce carbon emission.
As shown in fig. 8, the grounding device 7 is provided, and since the two-system bogie is driven by electric power, in order to effectively avoid the occurrence of faults such as over-current pitting corrosion and the like on key parts such as bearings, the grounding device 7 is specially additionally provided, and current can be transmitted to the steel rail through the grounding device 7.
As shown in fig. 9, a speed measuring device 8 is provided, and the speed measuring device 8 can display the real-time rotating speed of the wheel pair in the cab by installing a speed sensor.
The two-system bogie has higher integration level and modularization, is convenient to maintain, has stronger device expandability, is convenient to form and is easy to form batch compression cost; the installation space of each part can be maximally compressed, and the lower space is larger, so that the maintenance is convenient; different power modes can be provided according to the requirements of the whole vehicle; and a secondary vibration damping mode is adopted, so that the dynamic performance of the whole vehicle can be improved, and the riding comfort of personnel is improved.
Example four
The subway vehicle secondary bogie is provided with a lower-hanging type motor mounting structure which comprises a beam assembly, a motor hanging seat, a motor mounting seat, a motor and fastening bolts, wherein the motor is a double-power motor, the beam assembly provides a mounting carrier for mounting the double-power motor, the motor hanging seat and the motor mounting seat are welded on the beam assembly, the mounting structure of the motor adopts a lower-hanging type oblique-symmetrical motor mounting layout, and the motor layout is arranged on two oblique-symmetrical sides of the double beams.
The motor hanging seat is arranged in a sinking groove which is reserved in the oblique symmetry of the cross beams at the two sides.
The motor hanging seat adopts an integral welding mode and is a direct carrier for mounting the motor.
The motor mounting seat is welded on the lower cover plate of the cross beam corresponding to the motor hanging seat and used for fixing the lower part of the motor.
The beam assembly consists of a beam and a longitudinal beam.
The transverse beam and the longitudinal beam are both of box-type structures, the transverse beam is formed by welding an upper cover plate, a lower cover plate, a web plate and a rib plate, and the longitudinal beam is formed by welding an upper cover plate, a lower cover plate, a web plate and a rib plate.
One side of the cross beam is of a sink groove structure for mounting the motor hanging seat, the sink groove structure is square, peripheral chamfering processing is conducted, and arc transition is conducted at a corner.
The longitudinal beam is of an arch-shaped box body structure and is used for mounting components such as a transverse shock absorber and the like and is spliced and welded with the cross beam to form a cross beam assembly.
The beam assembly is also provided with a gear box, a transverse stopping seat, a traction device mounting seat, a transverse shock absorber seat, a unit brake mounting seat and a hoisting stopping seat which are all of welded structures.
The motor mounting seat is formed by welding a hole seat, a mounting plate and a rib plate.
Machining allowance Kmm is reserved in the hole seat, wherein K is a natural number, and in the embodiment, the value of K is 2-5mm, so that the purpose is to mill a plane, prevent welding deformation, guarantee flatness and guarantee drilling precision.
And hole site processing and hole seat plane processing are carried out on the bolt holes after the framework is welded.
The motor hanging seat is an integral machined part.
And the motor hanging seat is welded in the beam sinking groove.
And the bend angle of the motor hanging seat adopts circular arc transition.
The beam assembly, the motor hanging seat, the motor mounting seat, the motor and the like. Through the precision machining of the beam assembly, the motor hanging seat and the motor mounting seat, the mounting precision of the motor is guaranteed, the mounting is stable and firm, the mounting precision is high, the motor transmission power is stable, the oblique symmetry lower hanging type layout mode is adopted, the overall structure is more compact, the upper space is larger, the interference with the vehicle frame is avoided, the gravity center of the bogie can be reduced by the layout mode, and the dynamic performance of the whole vehicle is improved. The running stability and the comfort of the whole vehicle are improved.
For a better understanding of the present invention, the foregoing detailed description has been given in conjunction with specific embodiments thereof, but not with the intention of limiting the invention thereto. Any simple modifications of the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention. In the present specification, each embodiment is described with emphasis on differences from other embodiments, and the same or similar parts between the respective embodiments may be referred to each other. For the system embodiment, since it basically corresponds to the method embodiment, the description is relatively simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911038019.4A CN112744247A (en) | 2019-10-29 | 2019-10-29 | Secondary bogie of railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911038019.4A CN112744247A (en) | 2019-10-29 | 2019-10-29 | Secondary bogie of railway vehicle |
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| CN112744247A true CN112744247A (en) | 2021-05-04 |
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| CN201911038019.4A Pending CN112744247A (en) | 2019-10-29 | 2019-10-29 | Secondary bogie of railway vehicle |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2277486C1 (en) * | 2005-01-17 | 2006-06-10 | Николай Иванович Никифоров | Device for longitudinal coupling of bogies with body of railway traction vehicle |
| CN104057970A (en) * | 2014-06-30 | 2014-09-24 | 西南交通大学 | Low floor tramcar steering bogie |
| CN104670263A (en) * | 2013-12-03 | 2015-06-03 | 太原轨道交通装备有限责任公司 | Novel metro catenary operating vehicle bogie |
| RU2558420C1 (en) * | 2014-03-19 | 2015-08-10 | Открытое акционерное общество "МЕТРОВАГОНМАШ" | Motor trolley of railroad transport |
| CN105151069A (en) * | 2015-09-29 | 2015-12-16 | 济南轨道交通装备有限责任公司 | Electric driving bogie for subway engineering vehicle |
| CN108099937A (en) * | 2018-02-01 | 2018-06-01 | 株洲时代电子技术有限公司 | A kind of Subway track engineering vehicle electrical transmission turning framework frame |
| CN212195456U (en) * | 2019-10-29 | 2020-12-22 | 中国铁建高新装备股份有限公司 | Secondary bogie of railway vehicle |
-
2019
- 2019-10-29 CN CN201911038019.4A patent/CN112744247A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2277486C1 (en) * | 2005-01-17 | 2006-06-10 | Николай Иванович Никифоров | Device for longitudinal coupling of bogies with body of railway traction vehicle |
| CN104670263A (en) * | 2013-12-03 | 2015-06-03 | 太原轨道交通装备有限责任公司 | Novel metro catenary operating vehicle bogie |
| RU2558420C1 (en) * | 2014-03-19 | 2015-08-10 | Открытое акционерное общество "МЕТРОВАГОНМАШ" | Motor trolley of railroad transport |
| CN104057970A (en) * | 2014-06-30 | 2014-09-24 | 西南交通大学 | Low floor tramcar steering bogie |
| CN105151069A (en) * | 2015-09-29 | 2015-12-16 | 济南轨道交通装备有限责任公司 | Electric driving bogie for subway engineering vehicle |
| CN108099937A (en) * | 2018-02-01 | 2018-06-01 | 株洲时代电子技术有限公司 | A kind of Subway track engineering vehicle electrical transmission turning framework frame |
| CN212195456U (en) * | 2019-10-29 | 2020-12-22 | 中国铁建高新装备股份有限公司 | Secondary bogie of railway vehicle |
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Application publication date: 20210504 |