1155results about "Bogies" patented technology

The invention relates to the technical field of railway vehicles, and provides a wheel set, a bogie and a railway vehicle. The wheel pair comprises a shaft sleeve structure, an axle, a pair of wheels and a connecting structure; the axle is rotationally arranged in the shaft sleeve structure; the pair of wheels is arranged at the two ends of the shaft sleeve structure respectively and rotationally connected with the shaft sleeve structure. The connecting structure is connected with the axle and the wheels and used for achieving synchronous rotation of the axle and the wheels. According to the wheel set, the bogie and the railway vehicle, the wheels are rotationally connected with the shaft sleeves, the axles are rotationally connected with the shaft sleeves, synchronous rotation between the axles and the wheels is achieved through the connecting structures, torque is transmitted between the axles and the wheels, the shaft sleeves bear bending moment, and therefore decoupling of the torque transmission function and the bearing function is achieved; the requirement on the strength of the axle is effectively reduced; in addition, the freedom degree of structural design is improved, and the overall weight is reduced.

The invention provides a semi-active control type shock absorber for a railway vehicle, and relates to the technical field of shock absorbers, an oil storage cylinder is sleeved outside a working cylinder, and an oil storage cavity is arranged between the oil storage cylinder and the working cylinder; the piston valve assembly is fixedly arranged at one end of the piston rod, the piston rod and the piston valve assembly are both arranged in the working cylinder, and the piston valve assembly moves in the working cylinder through the piston rod and divides the internal space of the working cylinder into a compression cavity and a stretching cavity; a guide assembly is arranged on one side of the working cylinder, an oil storage cylinder base is arranged on the other side of the oil storage cylinder and the other side of the working cylinder, and the oil guide pipe is arranged in the oil storage cavity. The electromagnetic regulating valve assembly, the electromagnetic switch valve assembly and the damping valve assembly are all fixedly arranged on the side face of the oil storage cylinder base. According to the semi-active control type shock absorber, the requirements of different dampers at the same speed of a vehicle can be met, the semi-active control type shock absorber gradually replaces an original passive shock absorber so as to meet various types of damping requirements, and more comfortable and excellent riding experience is brought to passengers.

The invention relates to the technical field of railway vehicles, and provides a shaft sleeve structure, a wheel set, a bogie and a railway vehicle. The shaft sleeve structure comprises a first shaft sleeve and a second shaft sleeve; the first shaft sleeve and the second shaft sleeve are coaxial, are arranged on the two sides of the gearbox respectively and are suitable for being fixedly connected with the gearbox respectively. The first shaft sleeve and the second shaft sleeve are respectively provided with an axial shaft penetrating hole, and the shaft penetrating holes are suitable for penetrating an axle coaxially fixed with a wheel; the first shaft sleeve comprises a first pipe body close to the gear box and a second pipe body far away from the gear box, the second shaft sleeve comprises a second pipe body, the first pipe body is of a sleeve structure with a round inner side and a square outer side, and the second pipe body is of a round sleeve structure and is suitable for being rotationally connected to the inner side of a wheel. The axle can only transmit torque, the first shaft sleeve and the second shaft sleeve play a bearing role, the torque transmission function and the bearing function are decoupled, good bending resistance is achieved, and the safety coefficient is effectively improved.

The straddle type monorail bogie comprises a framework assembly, a walking wheel assembly, a driving assembly and a planetary gear reducer, the framework assembly comprises a framework body and a fixing assembly, and the fixing assembly is detachably and fixedly connected with a connecting beam in the framework body so that the fixing assembly and the connecting beam can detachably clamp the driving assembly; the driving assembly, the walking wheel assembly and the planetary gear reducer are integrated into a whole, and the driving assembly, the walking wheel assembly and the planetary gear reducer can be separated from the framework assembly by disassembling the fixing assembly. The framework assembly is provided with the receding space for the driving assembly, the walking wheel assembly and the planetary gear speed reducer to be separated from the framework body from the lower side of the connecting beam, so that the walking wheel assembly, the driving assembly and the planetary gear speed reducer can be disassembled without disassembling the framework body, walking wheels do not need to move axially within the limited axial space size, and the structure is simple and convenient. According to the wheel replacing device, the mode of directly discharging the wheels downwards in the vertical direction can be achieved, the walking wheels are not disassembled and replaced, the wheel replacing time is saved, and the wheel replacing efficiency is improved.

The invention discloses a straddle type monorail train bogie and a straddle type monorail train. The straddle type monorail train bogie comprises a framework assembly, a walking wheel assembly, a driver, a planetary gear reducer, a brake and a fixing assembly, walking wheels in the walking wheel assembly are detachably and fixedly connected through hubs and axles, and the driving wheel is fixedly connected with the planetary gear reducer through the fixing assembly; the wheel axle and the driver are in transmission connection through the planetary gear reducer, so that power of the driver is transmitted to the wheel axle after being decelerated through the planetary gear reducer to drive the walking wheels to rotate and drive the vehicle body to run; the fixing assembly is detachably and fixedly connected with the connecting beam of the framework assembly, so that the fixing assembly detachably clamps the wheel shaft, the brake, the walking wheel assembly, the planetary gear reducer and the driver to be integrated into an integrated assembly, and the whole integrated assembly is detachably clamped by the fixing assembly and the connecting beam. The integrated assembly can be separated from the connecting beam by detaching the fixing assembly, and the walking wheels on the integrated assembly are detached after the integrated assembly is separated from the framework assembly, so that the walking wheels are not detached and replaced, the wheel replacement time is saved, and the wheel replacement efficiency is improved.

The present invention discloses an axle box guide post positioning type three-axle welded self-steering radial railway freight car bogie, comprising a frame, three sets of wheel set assemblies matched with the frame, both ends of the main shaft of the wheel set assembly are matched with axle box suspension devices, and also includes a basic braking device for braking the wheel set assembly, the main shafts of the wheel set assemblies on both sides are end shafts, the four axle box suspension devices corresponding to the two end shafts are connected by a cross connection device, and vertical hydraulic vibration reduction devices are installed between the four axle box suspension devices corresponding to the two end shafts and the frame; clearance side bearings are arranged on both sides of the frame along the track direction. The present invention provides an axle box guide post positioning type three-axle welded self-steering radial railway freight car bogie to solve the above-mentioned problems in the prior art, achieve the purpose of simplifying the structure of the three-axle bogie, and improve its working performance at the same time.

The present disclosure relates to a computer-implemented method for determining a real time steering angle (58) for a railway bogie (1) and to a control device (40) which is configured to perform the method, the method comprising: deter-mining by a sensor assembly at least one lateral real time sensor signal (38), which is characteristic for a lateral position of a tread of at least one wheel of the railway bogie (1) with respect to a railway track, determining, by means of a positioning algorithm (47), a real time position and / or orientation of the railway bogie (1) with respect to the railway track (31), using the received at least one lateral real time sensor signal (38) and determining the real time steering angle (58) for steering of the railway bogie (1), using the determined real time position and / or orientation of the railway bogie (1).

The present invention provides a bogie wheel set lifting structure, which includes a bogie and an axle box body located below the bogie; the axle box body includes a bearing box and a bearing box base integrally connected to the lower end of the bearing box; two primary rubber springs are arranged between the bogie and the bearing box base; the two primary rubber springs are respectively located on both sides of the bearing box; each primary rubber spring includes a metal outer shell; each metal outer shell is provided with a convex block; a vertical chute is respectively arranged on both sides of the bearing box; a lifting stop is arranged at the upper end of the vertical chute; each convex block can be slidably inserted and installed in a vertical chute. The present invention can not only realize the function of wheel set lifting, but also meet the strength requirements under running vibration and impact. When a large horizontal load appears between the bogie and the wheel set axle box, a reliable horizontal limit connection can be generated between the convex block and the chute, ensuring the stability of the horizontal connection between the bogie and the wheel set axle box and preventing large horizontal displacement of the primary rubber spring.

The invention provides a flexible welding deformation control method and an obtained bogie framework, specifically, a deformation monitoring sensor used for collecting workpiece deformation and a force sensor used for collecting clamping force are installed on a workpiece clamp; the deformation monitoring sensor and the force sensor are connected with the data acquisition control module; the method comprises the following steps: pre-installing a workpiece on a clamp, and establishing a mapping relation among the workpiece, the clamp and each sensor in the clamp; according to historical welding data of the same type of structure, presetting reversible deformation parameters, collecting pre-welding reference data, verifying data of each sensor, and if reversible deformation is effective, entering a welding process monitoring state; welding machine signals and sensor data are collected in real time, the deformation state is processed and analyzed in real time, and adjustment suggestions are output; and after welding is completed, the deformation trend of the workpiece after loosening and clamping is judged in combination with sensor data, deformation data of the workpiece after loosening and clamping are collected, whether the deformation data are qualified or not is judged, and if not, adjustment and repair are conducted till the deformation data are qualified.

A bogie assembly includes a bolster having a plate on which a rail vehicle is supported, and side frames disposed on opposite sides of the plate of the bolster. The side frames can have pedestal jaw ends that can couple with wheelsets of the rail vehicle. The side frames can have openings sized to receive the bolster and springs between spring seats of the side frames in the openings and the bolster. The side frames also can include unit guide pockets that can receive brake beams that move during engagement or release of brake shoes from wheels in the wheelsets. The unit guide pockets can be located below the spring seats in the side frames.

The bogie weighing device comprises a weighing valve and a force transmission mechanism, an air inlet of the weighing valve is communicated with an auxiliary air cylinder, an air outlet of the weighing valve is communicated with a distribution valve in a vehicle braking system, the weighing valve is fixed to a framework of a vehicle bogie, and the force transmission mechanism is connected with the framework and can rotate around a connecting point. One end of the force transmission mechanism is connected with the weighing valve, and the other end of the force transmission mechanism is connected with the hanging bracket. Stepless regulation of vehicle braking can be achieved.

A system and method are disclosed enabling the use of electromagnetic engines to traverse a wheeled bogie assembly across a plurality of rails. The electromagnetic engines may be used within a rail assembly comprising four rails and a frog assembly. Further, the electromagnetic engines may be used to traverse between a straight path and a turnout path at a non-moving rail switch having a frog assembly. In one aspect, an algorithm for powering various coils is disclosed wherein the algorithm controls the power level to switch tracks connected to the frog assembly.

The application discloses a bogie covering device, a bogie and a railway vehicle, and relates to the technical field of railway vehicles. The bogie covering device comprises a mounting cross beam, which is used for fixedly connecting to a frame body of the bogie; at least two mounting plates, which are fixedly arranged on the mounting cross beam, and at least one of the mounting plates is used for fixedly connecting to the frame body of the bogie; and at least one of the mounting plates is provided with a containing portion for containing an axle-mounted brake disc, and the bottom of the containing portion is protrusively arranged towards the outer surface of the mounting plate. The bogie covering device in the application can be applied to the bogie with a large-size axle-mounted brake disc; in the process of running, the airflow can be prevented from entering the bogie device through the avoiding holes to generate the aerodynamic resistance, most of the airflow can flow along the bottom surface of the bogie covering device from the outside of the bogie covering device, and compared with the airflow directly flowing through the complex components in the bogie covering device, the aerodynamic resistance can be effectively reduced.

The invention provides a split compound brake device, a disassembly and assembly method thereof and a railway vehicle, the split compound brake device comprises a shell main body, a mandrel, a split static disc, a split movable disc and an actuator, and a plurality of guide parts are respectively constructed in the axial direction of the shell main body; the mandrel is configured in the shell main body, and a disc hub with an axial spline is arranged on the mandrel; the split static disc is matched with the guide part and is suitable for sliding along the guide part; the split type movable disc and the split type static disc are matched to form a friction pair and are configured to slide in the axial direction of the disc hub. The actuators are arranged at the two ends of the shell body and are configured to drive the split type static disc and the split type movable disc to extrude and brake each other. The split type movable discs and the split type static discs are matched to form friction pairs, so that the number of the friction pairs can be increased by increasing the number during connection, then the braking force can be adjusted, the braking force does not need to be adjusted by configuring a plurality of brake discs and clamps, and structure simplification and light weight of the bogie are facilitated.

The railway vehicle bogie shock absorber spring pressing plate easy to replace comprises a cross-shaped steel plate, and the width of a cross arm and the width of a vertical arm of the cross-shaped steel plate are larger than or equal to the outer diameter of a shock absorption spring. The length of a cross arm of the cross-shaped steel plate is smaller than or equal to the width of a spring bearing table top at the bottom of a central square frame of the railway vehicle bogie side frame, and the length of a vertical arm of the cross-shaped steel plate is smaller than or equal to the length of the spring bearing table top at the bottom of the central square frame of the bogie side frame. Damping springs are respectively arranged at the upper parts of two ends of a cross arm and two ends of a vertical arm of the cross-shaped steel plate. According to the utility model, the original rectangular spring pressing plate is replaced by the cross-shaped spring pressing plate, so that the four corners of the spring bearing table top cannot be covered by the spring pressing plate, and the shock-absorbing spring and the spring pressing plate can be conveniently disassembled and replaced under the condition that the car lifting jack is not used by placing the jack on the corners of the spring bearing table top to jack up the swing bolster; and the working efficiency is greatly improved, and the labor intensity of workers and the equipment maintenance cost are reduced.

The present application provides a rubber spring and two types of axle suspension devices using such a rubber spring. Its main structure includes: a laminated spring body with a cavity inside; a base for fixing the bottom or outer ring of the laminated spring body; a positioning pin member fixed to the top or inner ring of the laminated spring body and connected to the vehicle frame or the locomotive axle; and a limiting member disposed in the internal space of the laminated spring body and mounted on the base, which is used to limit the deformation of the rubber spring when the rubber spring bears a load. When used upright, the positioning pin member is used to connect the primary positioning seat of the frame above it, and when used upside down, the positioning pin member is used to connect the axle box of the locomotive axle below it. This rubber spring integrates the axle suspension function into its own structure, making full use of space and having a compact structure.

The invention relates to the technical field of rail transit, in particular to a brake disc connecting structure, a full-disc type brake device and a rail vehicle. In the brake disc connecting structure, a brake disc comprises a plurality of brake movable discs and a plurality of brake movable discs which are arranged at intervals, a core shaft is suitable for being connected with a braked power shaft, the core shaft is arranged at the axis of the brake disc in a penetrating mode, the core shaft is fixedly connected with all the brake movable discs and can synchronously rotate, and all the brake discs can enable the core shaft to brake the power shaft through mutual extrusion. Wherein a center plate is arranged in the mandrel, one end of the center plate is connected with the inner wall of the mandrel, and the other end of the center plate is connected with a braked power shaft. The brake disc connecting structure is simple in overall structure and easy to disassemble and assemble, so that the later maintenance cost is reduced; moreover, the brake disc connecting structure utilizes the center plate in the mandrel to realize internal heat dissipation of the mandrel, so that the internal heat transfer path of the mandrel is prolonged, the influence of dynamic heat energy on the motor bearing is effectively reduced, the service life of the motor bearing is prolonged, and the use safety of the motor bearing is improved.

An articulated bogie for a low-floor straddle-type monorail, comprising: a framework, a locomotion wheel assembly, a horizontal wheel assembly, foundation brakes, driving units, air springs, a traction articulation mechanism, traction rubber piles, shock absorbers, and the like. The articulated bogie is a two-axle bogie; the upper portion of the traction articulation mechanism is connected to two compartments respectively, achieving motion decoupling of adjacent compartments; and the lower portion of the traction articulation mechanism is connected to the traction center of the bogie to transfer loads such as traction force and braking force. The driving units are arranged in a tire assembly and are each integrated with a gear box and a motor; an interface is reserved at the gear box end to mount a locomotion tire assembly; and the motor end is directly and firmly connected to the framework. The bogie only occupies the upper space on a single side, thereby achieving the low-floor design of vehicles. The articulated bogie for a low-floor straddle-type monorail has a simple and compact structure, facilitates full utilization of the space at the ends of vehicles, reduces the number of horizontal wheel assemblies, and improves the utilization efficiency of parts of bogies.

The invention relates to an active suppression control method for mechanical vibration of a railway vehicle, which comprises the following steps of: acquiring vibration signals of a vehicle body chassis, a bogie frame and a wheel set axle box in real time through a sensor array, and generating a vibration data set through filtering and noise reduction; performing multi-degree-of-freedom coupling feature analysis on the data set based on a vibration analysis model, and extracting vibration coupling features of vehicle body vertical bending, bogie snaking oscillation and wheel set torsional resonance modes; generating a vibration intensity trend matrix through time-frequency conjoint analysis, and indicating the vibration intensity change of each component in real time; when the vibration intensity exceeds the limit, parameters of a damper, a vibration absorber and an actuator are dynamically adjusted, and a vibration suppression instruction set is generated; and finally, the actuating mechanism is driven to cooperatively suppress the multi-mode coupling vibration. According to the method, the composite vibration problem of vehicle body shaking, bogie buffeting and wheel rail impact under the high-speed working condition is solved, and therefore the vibration suppression real-time performance and the cooperative control precision are improved.

The embodiment of the invention provides a wheel, a bogie and a railway vehicle. The wheel comprises a hub, a spoke and a wheel rim which are sequentially arranged from inside to outside. The hub and the wheel rim are made of a second type of metal; the spoke is made of a first type of metal alloy; an annular mounting groove or an annular convex part is arranged on the peripheral surface of the spoke; the density of the first metal alloy is smaller than that of the second metal; an annular mounting groove or an annular convex part is arranged on the inner circumferential surface of the wheel rim, the annular mounting groove and the annular convex part on the outer circumferential surface of the spoke correspond to the annular mounting groove and the annular convex part on the inner circumferential surface of the wheel rim, and the annular convex part is embedded into the annular mounting groove and used for axially limiting the spoke and the wheel rim. According to the wheel, the bogie and the railway vehicle provided by the embodiment of the invention, the problem of high difficulty in hot charging or press mounting of a traditional split type wheel can be solved, the weight of the wheel is relatively light, the lightweight design of the bogie is favorably realized, and the wheel rail noise is reduced.

The invention relates to the technical field of air rail transportation, in particular to a power type bogie based on a box girder type base and an induction gap adjusting method. The power type bogie comprises a box girder type base, the box girder type base comprises a suspension gap located at the bottom and communicated with an inner cavity, first rails located on the two sides of the suspension gap are arranged at the bottom of the box girder type base, and an induction magnetic stator is fixedly arranged on the inner side of the top of the box girder type base. The bogie assembly comprises a bottom frame, a motor support arranged on the bottom frame and walking wheels arranged on the bottom frame; the top of the motor support is provided with a motor rotor having an induction gap with the induction magnetic stator, and the motor rotor is used for driving the bogie assembly to move under the action of magnetic force generated by the motor rotor and the induction magnetic stator. And the gap adjusting device is used for adjusting the size of the induction gap. A semi-closed base can be formed through the box girder type base, a bogie and other components are arranged in a box girder cavity, maintenance is convenient, the influence of weather is small, and the service life can be prolonged.

The invention relates to the technical field of railway vehicle wheel sets, and provides a disc brake type wheel set which comprises a transmission shaft, a pair of shaft sleeves, a shell, a movable disc, a fixed disc and wheels. The space formed by the shell and the shaft sleeve is a first braking area and a second braking area which are independent of each other, the movable disc is movably connected to the transmission shaft, the fixed disc is movably connected to the shell, and the movable disc and the fixed disc are arranged in the shell at intervals and suitable for acting in the axial direction of the shell. A first actuator is arranged in the first braking area, and a second actuator is arranged in the second braking area so as to generate axial thrust on the movable disc and the fixed disc. The invention further provides a bogie and a railway vehicle. The defects that in the prior art, a traditional rail vehicle braking device causes extra loads to the axle, high energy consumption and large inter-spring mass are brought to the rail vehicle, and the braking torque is insufficient in the wheel steering process are overcome, the lightweight design of the axle is achieved, the braking torque is sufficient when the vehicle steers, and the running safety of the rail vehicle is guaranteed.

An adapter pad system including a roller bearing adapter and a roller bearing adapter pad for placement between a roller bearing and side frame pedestal roof of a three-piece railcar truck.

Disclosed in the present invention are a railway vehicle wheelset radial apparatus and a bogie thereof. The wheelset radial apparatus is formed by two auxiliary frames arranged front and back and two cross-arranged connecting rods, wherein the two auxiliary frames and the two connecting rods connected by round pins; the auxiliary frame is a U-shaped structure, and the middle of each transverse arm of the auxiliary frame sinks to form a surface-recessed structure; the transverse arm of the auxiliary frame is provided with a connecting rod mounting surface, configured to mount the connecting rods; the connecting rods are arranged in a crossed mode, and end portions thereof are located in the rod mounting surfaces and are in pin joint by means of round pins; the bogie comprises a wheelset, a bearing, a bolster component, a side frame component, a foundation braking apparatus, and a wheelset radial apparatus. By using the above wheelset radial apparatus, the connecting rods and the foundation braking apparatus both pass through a bolster assembling hole, the connecting rods are located at the lower side of the foundation braking apparatus, and the depth by which a center pin of the bogie is inserted into the bolster is greater than or equal to 160 mm. According to the present invention, not only the advantages such as good operation stability and excellent curve passing performance are ensured, but also the requirement that the bogie can adapt to assembling of different foundation braking apparatuses is met, so that the adaptability and versatility of the bogie are improved.

The invention provides a welding method of a box beam, a bogie frame and a railway vehicle. The welding method comprises the steps that the groove angle, the truncated edge length and the gap of a to-be-welded position are determined, and the dry extension length of a welding wire is determined; the angle of the groove is not higher than 45 degrees; sequentially forming a backing welding layer and a cosmetic welding layer at an outer side welding seam between the vertical plate and the lower cover plate through a deep penetration welding process; a cosmetic welding layer is formed at the inner side welding seam between the vertical plate and the lower cover plate through a deep penetration welding process, and a backing welding layer and a cosmetic welding layer are sequentially formed at the outer side welding seam; forming a backing weld layer and a cosmetic weld layer at the butt weld between the two vertical plates through a deep penetration welding process; the bogie frame is machined through the welding method, and the railway vehicle comprises the bogie frame. According to the welding method of the box beam, the bogie frame and the railway vehicle, the machining time can be saved, the assembling difficulty is reduced, raw material waste is avoided, and the welding efficiency and the welding seam quality are improved.

The invention relates to the technical field of railway vehicles, and provides a bullet train bogie and a railway vehicle, and the bullet train bogie comprises a framework and a wheel drive system. The framework comprises a bearing body and two plate springs, a center pin channel is formed in the middle of the bearing body, two installation channels are formed in the bearing body in the longitudinal direction of the framework, and the two plate springs are installed in the two installation channels respectively. The wheel driving system comprises a shaft core, a shaft sleeve and two wheels, the shaft core is rotationally installed in the shaft sleeve, a gear box is constructed on the shaft sleeve, a driving tooth is arranged in the gear box, the shaft core is sleeved with a driven tooth, the driving tooth is externally meshed with the driven tooth, and the two wheels are installed at the two ends of the shaft sleeve through bearings respectively and connected with the two ends of the shaft core through flexible plates respectively. Cushion blocks are arranged at the two ends of each plate spring respectively, and the cushion blocks are connected with the shaft sleeves. And the bearing main body and the plate spring replace the original cross beam and side beam structure, so that the lightweight effect of the framework is obvious.

A railroad car truck including one or two new side frames that each includes one or more of a plurality of different improvements that individually and in various combinations reduce, inhibit, or minimize the likelihood of stress fractures or cracks in the side frame.

The utility model discloses a guide structure for a railway vehicle, a bogie and the railway vehicle, the guide structure comprises a first rotating support, a second rotating support and a third rotating support, the first rotating support is provided with a first guide wheel suitable for being in contact with a track beam; a second guide wheel suitable for being in contact with the track beam is arranged on the second rotating bracket; the linkage piece is in linkage with the first rotating support and the second rotating support so that the first rotating support and the second rotating support can move along with each other, and the rotating directions of the first rotating support and the second rotating support are opposite. According to the guide structure designed by the utility model, the stress of the guide wheel can be reduced, and the turning capacity of the railway vehicle is improved.

The utility model provides a bogie frame which comprises two side beams and a cross beam connected between the two side beams. The side beam is designed into a straight structure, and the air spring mounting seat on the side beam adopts a forge piece, so that the size of the side beam in the vertical direction is greatly reduced on the premise of ensuring the strength, and a space for mounting flaw detection equipment is reserved. The cross beam is of a #-shaped structure formed by the two transverse beams and the two longitudinal beams, the traction device can be placed in the middle of the #-shaped structure, the vertical size of the traction device is compressed by optimizing the structure of the traction device, and therefore enough space is reserved below the bogie. According to the scheme, the vertical structures of the side beams and the cross beams of the bogie frame are optimized, so that the vertical size and the overall weight of the whole bogie frame are greatly reduced, and enough space is reserved for mounting equipment below the bogie frame. The utility model further provides an engineering inspection van with the bogie frame.

The invention relates to a remotely operated vehicle (50) for handling a goods holder (106) on a two-dimensional rail system (108) of an automated storage and retrieval system (1). The vehicle (50) comprises a first wheel mount (12) which is vertically displaceable relative to a frame (14) of the vehicle body, the first wheel mount (12) carrying a first pair (61) of coplanar wheels of said first set of wheels (6), and a second wheel mount (13) which is vertically displaceable relative to the frame (14) of the vehicle body, the second wheel mount (13) carrying a second pair (62) of coplanar wheels of said first set of wheels (6), the second wheel mount (13) being arranged parallel to and on an opposite side of said cavity (22) to said first wheel mount (12). A mechanism (15) for vertically displacing the first wheel mount (12) relative to the frame (14) of the vehicle body (10) is movable between a first position and a second position such that the movement of the mechanism (15) from the first to the second position results in the first wheel mount (12) being displaced vertically relative to the frame (14) of the vehicle body. A coupling assembly (19) couples the first (12) and the second (13) wheel mounts so that vertical movement of the first wheel mount (12) is transferred to the second wheel mount (13). The invention further relates to an automated storage and retrieval system (1) comprising said remotely operated vehicle (50) and a method of operating said remotely operated vehicle (50).