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Rail Car
Provided is a rail car that is capable of efficiently transmitting vibrational forces that have been transmitted from a bogie via a yaw damper and a yaw damper support to an underframe to a rail car shell, and that is of a simple structure, sufficient mechanical strength, and light weight for reducing the amount of heat applied to perform welding and for allowing a nondestructive inspection to be performed with ease. The rail car includes a rail car shell, a bogie that supports the rail car shell, a yaw damper having an end connected to the bogie, and a yaw damper support to which another end of the yaw damper is connected. The rail car shell includes an underframe including a floor assembly providing a floor and a bolster beam joined to the floor assembly, and a pair of side structures erected at both transverse ends of the underframe. In this rail car, the yaw damper support is fixed to a transverse end of the bolster beam.
Owner:HITACHI LTD
Railroad vehicle
A rail vehicle including an underframe that contributes to improvement in assembly and that is light in weight and high in rigidity is provided. The rail vehicle includes an underframe including a floor body structure that forms a floor surface and a bolster. The bolster includes a first shape member arranged at a middle portion of the bolster, at least part of the first shape member being formed by extrusion along a widthwise direction of the floor body structure, a second shape member connected to each of opposite end portions of the first shape member in the widthwise direction of the floor body structure, at least part of the second shape member being formed by extrusion along a lengthwise direction of the floor body structure, and a plate-shaped member connected to a side beam and connected to the second shape member.
Owner:HITACHI LTD
Modular coil railcar
A modular railcar includes a modular top system that is configured to hold one or more coils of material, and a railcar underframe that supports the modular top system. The modular top system includes a pair of side sills and one or more troughs disposed between the pair of side sills. Each side sill of the pair of side sills extends a longitudinal length of the modular top system. Each trough of the one or more troughs is configured to hold a coil of the one or more coils of material. The underframe includes one or more coupling apparatuses that are configured to detachably engage the modular top system when the modular top system is positioned on top of the underframe.
Owner:TRINITY RAIL GROUP LLC
Track flaw detection frame and flaw detection car
PendingCN119459788Areduce intensitylow costRailway inspection trolleysUnderframesVehicle frameMachining
The embodiment of the invention provides a track flaw detection vehicle frame and a flaw detection car, the flaw detection vehicle frame comprises an outer frame, a frame structure composed of a plurality of beam bodies, two end beam groups respectively serving as one end of the vehicle frame; the middle beam group is positioned between the two end beam groups and is fixedly connected with the end beam groups; the end beam set comprises end edge beams, and the middle beam set comprises middle edge beams. The sleeper beam is arranged at the joint of the end beam group and the middle beam group; the ends of the end edge beams and the ends of the middle edge beams are fixedly connected with the sleeper beams. According to the track flaw detection frame provided by the embodiment of the invention, a traditional frame is modularly divided, compared with machining of an overall frame, machining of small-unit modules can achieve optimized design and light-weight design, and for machining of the modules with small sizes, hoisting, transferring and personnel machining, the machining efficiency is greatly improved, and the machining cost is reduced. And the difficulty is obviously reduced.
Owner:CRCC HIGH TECH EQUIP CORP LTD
Underframe boundary beam connecting structure suitable for railway vehicle with drum-shaped vehicle body
An underframe boundary beam connecting structure suitable for a railway vehicle with a drum-shaped vehicle body is provided. An underframe boundary beam is a through long roll bending piece, a section of the through long roll bending piece is of a channel structure, and has a side face, an upper wing face, and a lower wing face. The side face has an inclination angle consistent with a side wall plate, an upper end of an outer side of the side face is provided with a concave platen, and the side wall plate is lapped on the concave platen and fixed by a butt welding; an inner end of the lower wing face is provided with a downwards vertical flanging, a vertical plate is welded and fixed between the upper wing face and the lower wing face.
Owner:CRRC NANJING PUZHEN CO LTD
Vehicle body structure and railway vehicle
PendingCN119590459AGuaranteed stiffnessGuaranteed StrengthRailway roofsUnderframesStructural engineeringMechanical engineering
Owner:BAOTOU NORTH VENTURE
Rail vehicle
Provided is a rail vehicle that efficiently transmits, to a railway vehicle structure, an oscillating force transmitted from a bogie to an underframe via a yaw damper and a yaw damper support portion, and that has sufficient strength. The underframe includes a floor portion, a side beam, and a bolster beam. A side structure is erected on an end portion in a vehicle width direction of the underframe. The bogie supports the underframe from below the underframe. A yaw damper receiving portion is provided to the end portion in the vehicle width direction of the underframe. The yaw damper support portion is fixed to the yaw damper receiving portion. The yaw damper includes one end portion connected to the bogie and the other end portion connected to the yaw damper support portion. The yaw damper is configured to reduce yawing oscillation of the bogie. The yaw damper receiving portion is provided to extend along the side structure, the side beam, and the bolster beam.
Owner:HITACHI LTD
Railroad flatcar and railroad flatcar body
PCT designated stage expiredWO2024260332A1UnderframesRailway transportClassical mechanicsStructural engineering
A railroad flatcar body and a railroad flatcar. The railroad flatcar body comprises a center sill (1) and two side sills (3). The center sill (1) and the two side sills (3) are connected by means of multiple longitudinally distributed connecting beams, and each connecting beam comprises two beam modules which are transversely distributed and independent of each other. At least one of the connecting beams is connected to the center sill (1) by means of connecting members (6), and each beam module comprises an inner end portion connected to the center sill (1) by means of the connecting members (6) and an outer end portion connected to a corresponding side sill (3) by means of the connecting members (6). The center sill (1) comprises an upper sill body (11) and a lower sill body (16). The lower sill body (16) is located below the upper sill body (11), and the lower sill body (16) is mounted to the upper sill body (11) by means of the connecting members (6). According to the railroad flatcar body, connection is implemented by means of the connecting members (6), so that the problem of difficulty in collection of welding fumes can be mitigated.
Owner:CRRC QIQIHAR ROLLING CO LTD
Interoperability systems for railway infrastructures
A railway system including at least two railway guide systems interfacing at a system conversion station, at least one railway guide system comprising a magnetic levitation railway track and the other railway guide system comprising one of a wheel railway track and a magnetic levitation railway track, the system conversion station comprising a bogie storage zone for storing one or more bogies adapted for locomotion on the first railway guide system and for storing bogies adapted for locomotion on the second railway guide system.
Owner:NEVOMO POLAND SP ZOO
Rail vehicle
A rail vehicle has improved rigidity against vertical bending vibration while avoiding an increase in mass of the rail vehicle and interference with infrastructure equipment. The rail vehicle includes a roof body constituting an upper surface; a side body constituting a side surface; an end body constituting an end surface in a longitudinal direction of the side body; an underframe constituting a lower surface; and a bogie supporting the underframe, in which the side body includes a plurality of openings and a pier between the openings, and a reinforcing body is arranged on a vehicle interior surface of the pier between one opening situated above the bogie and an other opening adjacent to the one opening and situated near a center in a longitudinal direction of the rail vehicle so as to extend from an upper corner of the one opening toward a lower corner of the other opening.
Owner:HITACHI LTD
Freight vehicle body and freight vehicle
The embodiment of the invention provides a freight vehicle body and a freight vehicle, and the freight vehicle body comprises a side wall which comprises a plurality of side wall longitudinal beams and side wall vertical beams which are connected to form a side wall framework, and the middle part of the side wall is provided with a side door installation area; the roof comprises a roof longitudinal beam, a first roof camber beam, a second roof camber beam, a door mechanism mounting beam and a roof edge beam; the chassis comprises a chassis upper cross beam, a chassis lower cross beam, a chassis upper edge beam, a chassis lower edge beam and chassis stand columns, and a chassis upper framework and a chassis lower framework are correspondingly formed and connected through the chassis stand columns; the side wall vertical beams, the second roof camber beams and the underframe upper cross beams are correspondingly connected to form an upper closed-loop structure; the underframe upper cross beam, the underframe lower cross beam and the underframe stand columns are correspondingly connected to form a lower closed-loop structure, and at least the upper closed-loop structure and the lower closed-loop structure on the two sides of the side door installation area are correspondingly connected to form a double-closed-loop structure. According to the freight vehicle body and the freight vehicle, the side door with the large width can be arranged, and goods can be loaded and unloaded rapidly.
Owner:CRRC TANGSHAN CO LTD
Welding structure, welding device and welding method
A welding structure, comprising: a first cover plate (10), a second cover plate (20), web plates (30), and rib plates (40). The first cover plate (10) and the second cover plate (20) are arranged at an interval. Multiple web plates (30) are arranged at intervals in a first direction, and are insertingly fitted to the first cover plate (10) and the second cover plate (20), respectively. Multiple rib plates (40) are arranged at intervals in a second direction, and are insertingly fitted to the first cover plate (10) and the second cover plate (20), respectively. The first direction and the second direction are perpendicular to each other. The web plates (30) and the rib plates (40) are insertingly fitted to each other. According to the welding structure, upper and lower cover plates of a box-shaped structure are insertingly connected and interlocked to form a stable closed box-shaped structure, so that the rigidity of the structure is improved. Also provided are a welding device and a welding method.
Owner:CRRC QINGDAO SIFANG CO LTD
Modular locomotive bogie frame
The invention is suitable for the technical field of locomotive equipment, and provides a modularized locomotive bogie frame. Comprising two side beams which are arranged in parallel, and a front end beam, a traction beam, a cross beam and a rear end beam are sequentially arranged between the two side beams; the two ends of the front end beam are fixedly installed at the first ends of the two side beams respectively, and the two ends of the traction beam, the two ends of the cross beam and the two ends of the rear end beam are fixedly installed on the inner sides of the two side beams respectively. Wherein the two ends of the rear end beam are fixedly mounted at the second ends of the two side beams; the front end beam, the traction beam, the cross beam and the rear end beam are arranged in parallel; the front end beam is of a sinking structure, the traction beam is of a sinking type camber beam, and the side beams are of a box type welding structure with the middle higher than the two ends. The three-axle bogie is applied to a center pin traction mode, the traction beam is of a sunken camber beam structure, and the three-axle bogie has the advantages of being low in traction point, low in framework height, short in framework length, small in framework section, light in framework weight, good in installation base structure universality and the like.
Owner:CRRC DALIAN CO LTD
Vehicle body for meter-gauge railway transportation container and vehicle
The invention discloses a vehicle body and a vehicle for a meter gauge railway transportation container. The vehicle body comprises an underframe body and a locking device, the middle of the underframe body in the longitudinal direction is a concave bottom, and the two ends are flat bottoms. Locking devices are arranged at the four corners of the concave bottom and the four corners of the flat bottom respectively. The concave bottom is used for loading a 20-foot 35-ton open top container; the flat bottom is used for supporting a 40-foot standard container when the 40-foot standard container is loaded. According to the vehicle body for transporting the containers through the meter-gauge railway, through the two end frames shaped like the Chinese character'tian ', the central concave bottom frame shaped like the Chinese character'mu' and the two vertical frames shaped like the Chinese character'vessel ', not only can 40-foot standard containers (the heights of the containers are 2438mm) be loaded, but also 20-foot 35-ton open-top containers (the heights of the containers are 2896mm) can be loaded.
Owner:CRRC MEISHAN CO LTD
Magnetic levitation vehicle walking mechanism and magnetic levitation vehicle
The utility model provides a magnetic levitation vehicle walking mechanism which comprises two rigid suspension frames located at the two ends respectively and a plurality of rigid suspension frames arranged between the two rigid suspension frames at intervals. The rigid suspension frame comprises a rigid suspension cross beam and rigid suspension frames arranged at the two ends of the rigid suspension cross beam. The rigid body suspension frame comprises a rigid body suspension cross beam and rigid body suspension frames arranged at the two ends of the rigid body suspension cross beam. The suspension magnet module and the traction linear motor module are connected with the rigid suspension frame and the rigid suspension frame in a hinged mode. The traction pull rod is arranged between the rigid suspension frame and the rigid body suspension frame or between two adjacent rigid body suspension frames and is used for traction and brake load transmission. The walking mechanism adopts the rigid body suspension frame and the rigid body suspension frame which are of independent structures, and the rigid body suspension frame and the rigid body suspension frame are connected in a hinged mode to adapt to the safe operation condition that the speed per hour is 200 kilometers or above. The utility model further provides a magnetic levitation vehicle.
Owner:CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
Stainless steel subway vehicle body structure with replaceable module
The utility model provides a stainless steel metro car body structure with replaceable modules. The metro car body structure comprises an underframe steel structure, a car roof steel structure, a side wall steel structure, an end wall steel structure, a cab framework structure, an end crushing area and an energy absorption structure. The ground body vehicle body structure has high strength and high safety performance, and the vehicle body structure does not yield under the working condition that the compression load of the end portion is 1800 kN; when destructive accidents such as collision occur, only local replacement or maintenance is needed, the problem that the whole vehicle body system is not suitable for maintenance is solved, the cost is effectively reduced, the service life of an accident vehicle body is prolonged, and the design life of the optimized vehicle body structure can be prolonged to 40 years through simulation analysis and line test data verification.
Owner:CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
Body bolster structure for railway vehicle, and railway vehicle
A bolster structure is capable of securing a prescribed space between a bolster and an underframe, maintaining the rigidity of the bolster structure, and reducing its weight and cost. The bolster structure is provided on an underframe constituting a floor of a railroad vehicle, and is formed by joining a plurality of shaped members having a multi-layer structure in which a width direction of the structure body is an extrusion direction. The plurality of shaped members include: shaped members 15B and 15C having a region in which a part of layers on an underframe side is notched at a center of the structure body in the width direction; and shaped members including a fastening portion formed by notching a part of layers at both ends of the structure body in the width direction. A side beam of the underframe is fixed by the fastening portion.
Owner:HITACHI LTD
Railway vehicle sleeper beam structure
The utility model belongs to the technical field of sleeper beam structures, and particularly relates to a railway vehicle sleeper beam structure which comprises a sleeper beam, a left supporting beam is fixedly connected to the left side of the sleeper beam, a right supporting beam is fixedly connected to the right side of the sleeper beam, the left supporting beam and the right supporting beam are the same in size, an upper through hole is formed in the sleeper beam, and a lower through hole is formed in the right side of the sleeper beam. The lower end of the sleeper beam is fixedly connected with a supporting column, the supporting column is provided with a lower through hole, the interior of the upper through hole is communicated with the interior of the lower through hole, the upper through hole is formed in the upper end of the lower through hole, the lower ends of the sleeper beam, the left supporting beam and the right supporting beam are each provided with a reinforcing mechanism, and the left supporting beam and the right supporting beam are each provided with a lifting rod mechanism. The front reinforcing block and the rear reinforcing block are connected to the front portion and the rear portion of the reinforcing rib respectively, the left supporting claw and the right supporting claw are connected to the left side and the right side of the reinforcing rib respectively, the stability of the reinforcing rib for connecting the sleeper beam, the left supporting beam and the right supporting beam is improved, protection on the sleeper beam, the left supporting beam and the right supporting beam is improved, and the probability of slag falling after long-time use is reduced.
Owner:ZHEJIANG ZHENHAN TECH CO LTD
Structural components of railway vehicles and railway vehicles
To provide a thin structural member which contributes to the improvement of assemblability of a vehicle body, is light-weight and has high rigidity, and a railroad vehicle that forms a floor surface with an underframe structure with such a structural member.SOLUTION: A body bolster of a railroad vehicle includes: a plurality of radial ribs arranged radially from the center of a vertical load input unit and having a shape of a protrusion on the surface of a flat plate arranged horizontally with a curvature provided in the longitudinal or width direction of a vehicle more gently as it moves away from the center of the vertical load input unit; and a circular rib arranged intermittently around a vertical load input seating surface so as to overlap the plurality of radial ribs.SELECTED DRAWING: Figure 4
Owner:HITACHI LTD
Rail vehicle and method of producing same
Provided are a rail vehicle including an underframe that contributes to improvement in an assembly property of a vehicle body and that includes a lightweight and highly rigid thin bolster, and a method for manufacturing the same. The rail vehicle includes: the bolster provided in the underframe forming a floor portion; and a bogie provided below the bolster. The bolster includes: side beam abutting portions that are provided at both end portions of the bolster in a width direction along a longitudinal direction of the rail vehicle, and that abut against side beams provided at both end portions of the underframe in a width direction; a center beam abutting portion that is provided at a center portion of the bolster in the width direction along the longitudinal direction of the rail vehicle, and that abuts against a center beam provided at a center portion of the underframe in the width direction; and air spring abutting portions that are provided between the respective side beam abutting portions and the center beam abutting portion, and against which air springs provided in the bogie abut. The air spring abutting portion includes a plurality of ribs formed radially from a substantially center portion of the air spring abutting portion by a machining process.
Owner:HITACHI LTD
Articulated monorail vehicle chassis
The invention relates to the technical field of railway vehicle chassis structures, and discloses a hinged type monorail vehicle chassis which comprises a main frame, a sleeper beam and a traction beam. The main frame comprises two sets of side longitudinal beams arranged side by side and two sets of side cross beams used for connecting the two sets of side longitudinal beams. The sleeper beam is parallel to the side cross beams, and the two ends of the sleeper beam are connected to the two sets of side longitudinal beams respectively; the traction beam and the side longitudinal beams are arranged in parallel, the two ends of the traction beam are connected to the two sets of side cross beams respectively, and the traction beam penetrates through the sleeper beam and is fixedly connected with the sleeper beam. And a traction plate is arranged on the traction beam. According to the double-layer truss type structural design, the traction beams, the side cross beams and the sleeper beams are composed, the weight is effectively reduced, and the structural strength and rigidity are guaranteed. Through the simple and convenient structure of the side cross beam, the stress on the side longitudinal beam can be effectively dispersed. The underframe structure is easy and convenient to construct, most of the underframe structure is made of profiles of the same or similar specifications, material preparation is easy and convenient, the welding amount is small, and the manufacturing time is saved by 30% or above.
Owner:ZHUZHOU CSR SPECIAL EQUIP TECH
Fastening arrangement for a device carrier
Fastening arrangement for a device carrier (1) on a rail vehicle, wherein the rail vehicle comprises at least one longitudinal beam (2) with a plurality of vertical bores arranged linearly and equidistantly on a horizontal projection (3) of the longitudinal beam, wherein a device carrier (1) is directly attached to at least one of the bores with releasable fasteners (4) and a bracket (5) is releasably attached to two further bores, wherein the bracket (5) encompasses a section of the device carrier (1) so that in the event of failure of the releasable fasteners (4) the device carrier (1) is held by the bracket (5), and wherein the bracket (5) has a projection (7) which prevents the releasable fasteners (4) of the device carrier (1) from falling off.
Owner:SIEMENS MOBILITY AUSTRIA GMBH
A support wheel device for a medium and low speed maglev train
The present invention provides a support wheel device for a medium and low speed maglev train, which relates to the technical field of maglev trains and includes a seat body, a base and a limiting wheel seat connected in sequence from top to bottom through a support frame. A stepped hole is provided inside the seat body, and an oil cylinder assembly is arranged in the stepped hole. The upper part of the oil cylinder assembly extends out of the upper surface of the seat body. The limiting device is connected to the limiting groove after passing through the limiting hole. A long screw for adjusting the height of the support wheel is arranged at the lower part of the support frame. An inner hole for connecting with the support frame is provided on the base. A positioning block is arranged on the upper surface of the limiting wheel seat, and the positioning block is adapted to the positioning groove on the support frame. The limiting wheel seat is connected with the support wheel through a wheel shaft. The support wheel device for a medium and low speed maglev train provided by the present invention is used for the support and operation when the train suspension fails, effectively solves the problem of vertical skid wear, and reduces the operation cost of the train.
Owner:CRRC DALIAN CO LTD
Bogies for container transfer
The present invention relates to a bogie for container transfer. Each running wheel group of the bogie includes two running wheels, each gear box is arranged between the corresponding driving motor and the running wheel group, each gear box has an input shaft and two output shafts, the input shaft of each gear box is arranged along the length direction of the frame, the input shaft of each gear box is drivingly connected to the output shaft of the corresponding driving motor, the two output shafts of each gear box are respectively drivingly connected to the rotating shafts of the two running wheels of the corresponding running wheel group, and the braking part of each braking mechanism is arranged on the output shaft of the corresponding gear box. A bogie for container transfer of the present invention can reasonably utilize the space of the compact bogie to achieve the purpose of bogie braking because the braking part of the braking mechanism is arranged on the output shaft of the corresponding gear box.
Owner:CRRC YANGTZE CO LTD
Lightweight underframe for machine
An underframe for a machine may have a first beam extending in a longitudinal direction and a second beam disposed generally parallel to and spaced apart from the first beam in a transverse direction. At least one of the first beam and the second beam may have a lower plate, an upper plate, and a web extending between the lower plate and the upper plate. The underframe may have a cross beam attached to the first and second beams. Further, the underframe may have a bracket transversely aligned with the cross beam. The bracket may include a first leg extending from the lower plate to the upper plate and attached to the web. The bracket may also include a second leg extending from the first leg, the second leg attached to the upper plate. The bracket and the cross beam may be disposed on opposite sides of the web.
Owner:PROGRESS RAIL LOCOMOTIVE INC
Under-floor machining for bogies
The invention relates to a method for under-floor machining, wherein in a first method step (2) a first wheelset (10) or a first wheel (6) and in a second method step (3) a second wheelset (11) or a second wheel (7) is machined by means of a first tool (17), wherein a relative movement between a rail vehicle (1) and the first tool (17) is carried out between the first method step (2) and the second method step (3). According to the invention, in a third method step (4) a third wheelset (12) or a third wheel (8) and in a fourth method step (5) the first wheelset (10), a fourth wheelset (13), the first wheel (6) or a fourth wheel (9) is machined by means of a second tool (18), the second tool (18) being moved between the third method step (4) and the fourth method step (5) for a change in machining position. An increase in servicing and / or maintenance efficiency is thereby made possible.
Owner:SIEMENS MOBILITY AUSTRIA GMBH
Railway vehicle
To provide a railway vehicle which secures enough space for an installation of equipment components and makes the equipment components easily installed.SOLUTION: In a railway vehicle 1 which comprises a truck 16 to travel on a track 25, an underframe 11 supported by the truck 16, a cap beam 113 to constitute the underframe 11 on the truck 16, and a center pin 21 to transfer a tractional force in the track direction caused by traveling of the truck 16, to the underframe 11, the underframe 11 has a middle beam 114 extending in parallel to the track direction at a midship part in a sleeper direction, the center pin 21 is connected to the middle beam 114, the underframe 11 has a rigging space 117A, 117B opening toward outside of the underframe 11 in a neighborhood of the cap beam 113, on a lower face in a track 25 side or on an upper face in an opposite side against the track 25 side.SELECTED DRAWING: Figure 3
Owner:NIPPON SHARYO LTD
Anti-collision railway vehicle body and railway vehicle
According to the anti-collision railway vehicle body provided by the utility model, the structure of the chassis of the vehicle body is optimized; the chassis comprises boundary beams located on the left side and the right side respectively, a cross beam connected with the boundary beams on the two sides, end beams located on the front side and the rear side respectively, a sleeper beam connected with the boundary beams on the two sides, an aluminum floor laid above the cross beam and the sleeper beam, and a car coupler seat arranged below the aluminum floor, and the cross beam, the sleeper beam and the aluminum floor are arranged in a frame structure defined by the boundary beams and the end beams. The structural strength of the chassis is improved, the collision energy absorbing capacity of the chassis of the vehicle body is improved, and the anti-creeper is installed on the end beam located on the front side. The collision capacity is absorbed through the collision anti-creeper and the vehicle body, the vehicle body structure is not damaged at a certain collision speed of the vehicle, and the safety of the railway vehicle is greatly improved. The utility model further provides a railway vehicle with the anti-collision railway vehicle body.
Owner:CHONGQING CRRC RAILWAY VEHICLES CO LTD
Modular body-suspended switching locomotive
ActiveCN117565902BUpgraded assembly efficiency improvementElectric motor propulsion transmissionUnderframesBogieTransmission technology
The present application belongs to the field of rail transit, and particularly relates to a modular body suspension shunting locomotive, which comprises the following parts: a power source module, a chassis, a bogie and an undercarriage universal shaft; wherein the bogie is connected with and supports the chassis, the undercarriage universal shaft is connected with the chassis, and meanwhile, the undercarriage universal shaft is connected with the bogie, and the power source module is supported by the chassis; a driving device assembly module is arranged on the chassis, the driving device assembly module penetrates through the chassis and is connected with the undercarriage universal shaft, and meanwhile, the driving device assembly module is connected with the power source module, so that the locomotive moves. The present application uses a body suspension structure, sets a driving device assembly in the middle of the chassis and matches the original hydraulic transmission locomotive bogie interface, realizes the upgrading of the locomotive from hydraulic transmission to electric transmission technology on the basis of retaining the original hydraulic transmission locomotive chassis and bogie structure; and the components such as the converter and the power source are integrated into an independent box type unit, so that the upgrading and assembling efficiency of the locomotive is greatly improved.
Owner:CRRC DALIAN CO LTD
Welding structure, welding equipment and welding method
The welded structure includes a first cover plate (10), a second cover plate (20), a web plate (30), and a rib plate (40), the first cover plate (10) and the second cover plate (20) are spaced apart from each other, a plurality of web plates (30) are spaced apart from each other along a first direction and are inserted and fitted into the first cover plate (10) and the second cover plate (20), and a plurality of rib plates (40) are spaced apart from each other along a second direction and are inserted and fitted into the first cover plate (10) and the second cover plate (20), where the first direction and the second direction are perpendicular to each other, and the web plate (30) and the rib plate (40) are inserted and fitted into each other. The welded structure employs an insert-fit lock between the upper cover plate and the lower cover plate for the box structure, thereby forming a stable sealed box structure and increasing the rigidity of the structure. The present invention also relates to a welding device and a welding method.
Owner:CRRC QINGDAO SIFANG CO LTD