42results about "Axle-boxes" patented technology

[Railway axle box body] This axle box body (1) comprises an axle box bearing (2) and two supports (3) arranged radially on either side of the bearing (2) and comprising a common lower flange (4). Each support (3) comprises an upper flange (5) opposite the lower flange (4) and intended to receive suspension means for a railway vehicle body. Each support (3) further comprises two walls (6, 7) extending between the upper flange (5) and the lower flange (4), being axially separated from each other at least partially, an air circulation channel (9) being formed between the lower flange, the upper flange, and the two walls (6, 7) of each support (3). Reference: Figure 1

Achieved is a rubber bushing for railroad trucks which has a novel structure and is capable of improving, for example, flame resistance to externally applied fire or the like without greatly degrading the basic properties demanded with respect to vibrational and load inputs. A rubber bushing 10 used for railroad car trucks comprises a shaft-like inner member 12 and an outer member 14, disposed on the outer peripheral side of the inner member 12 at a remove therefrom, which are linked by a rubber elastic body 16. A cover part 48 that covers an exposed end surface 44, from the outside thereof, where the rubber elastic body 16 is exposed to the outside between the axial ends of the inner member 12 and the outer member 14, is provided at an axial end of the rubber elastic body 16 as a separate member from the rubber elastic body 16.

The invention relates to a ballistic protection arrangement for vehicles, in particular for a wheelset axle (1) of a chassis for a rail vehicle, comprising at least one curved or curved first shell (2) which can be arranged to at least partially enclose the wheelset axle (1), and at least one elongated first fastening device (4) which can be arranged at least partially around the at least first shell (2). It is proposed that the at least first shell (2) has at least one first retaining device (5) by means of which the at least first fastening device (4) can be positioned and locked onto the at least first shell (2), wherein the at least first shell (2) can be fastened to the wheelset axle (1) by means of the at least first fastening device (4) and the at least first retaining device (5), and wherein the at least first retaining device (5) is formed integrally with the at least first shell (2).This ensures a secure closure and a moderate space requirement for the protective arrangement.

The invention discloses a power generation device for a bogie shaft end of a vehicle and a truck, and the power generation device for the bogie shaft end of the vehicle comprises a base which is suitable for being installed at the bogie shaft end of the vehicle; the input end of the transmission assembly is in power connection with the base; the output end of the transmission assembly is in power connection with the input end of the power generation device; wherein at least part of the transmission assembly is configured to be a flexible piece. According to the power generation device at the bogie shaft end of the vehicle, the power generation device does not need to be directly installed at the bogie shaft end of the vehicle, so that the dynamic load of the bogie shaft end of the vehicle is reduced, optimization of space arrangement is facilitated, and heat transfer between the power generation device and the bogie shaft end of the vehicle is facilitated.

To provide an electric motor and / or a power generator especially for a railway vehicle, with which a revolution speed of a shaft is increased without increasing a frequency of maintenance work and lowering reliability of an electric motor.SOLUTION: An electric motor and / or power generator (1) especially for a railway vehicle according to the present invention, comprises: a housing (10); a movable shaft (16) revolving around an axis (X-X') with respect to the housing (10); and at least two tilted bearings (18, 20) connecting the shaft (16) and the housing (10) with each other. Each of the at least two tilted bearings (18, 20) includes; an outer ring (30) attached to the housing (10); an inner ring (32) attached to the shaft (16); and a plurality of balls (34). Each of the balls (34) defines an outer contact track of the outer ring (30) and an inner contact track of the inner ring (32), with the outer contact track being offset in an axial direction with respect to the inner contact track.SELECTED DRAWING: Figure 1

The invention relates to a chassis (100), in particular a low-floor chassis, for a rail vehicle, especially a tram. The chassis (100) comprises at least four wheels (4), each with a wheel bearing, at least two wheel axles for suspending the wheels (4), a chassis frame (1), and a primary suspension for suspending the wheels (4) relative to the chassis frame (1). The primary suspension has at least four torsion bars (20). Two torsion bars (20), in particular two torsion bars on one side of the chassis, are connected via a connecting element (21) such that the torques of the torsion bars (20) are opposite in direction, and in particular, the torques essentially cancel each other out.

The utility model discloses a kind of high-speed train bogie axle box with self-lubricating function, including the split type axle box structure being connected with bogie, the axle box structure is divided into upper box and lower box, bearing hole is provided in the center of upper box and lower box, positioning guide mechanism is provided between upper box and lower box, the positioning guide mechanism includes the first locating block being arranged at the top of lower box and the second locating block being arranged at the bottom of upper box, sealing structure is arranged on the contact surface of upper box and lower box, self-lubricating composite gasket and support rail abutment are integrated in the bottom of lower box, oblique spring seat is provided on the lower box, and multiple-stage air spring assembly and hydraulic damper are provided between spring seat and bogie.The utility model split type structure reduces train wheel set replacement time, self-lubricating gasket reduces the friction coefficient between support rail, improves service life, and obliquely arranged air spring dynamically adjusts axle box vertical and lateral stiffness, solves the problem of large friction loss and high maintenance cost of existing axle box.

The application discloses a transversely coupled integrated tram box axle bridge and a manufacturing method thereof. The axle bridge comprises a bridge body, a first box and a second box which are symmetrically arranged at two ends of the bridge body and are suitable for mounting a gear transmission mechanism. The bridge body is a hollow structure and is communicated with the first box and the second box at two ends respectively. First mounting holes suitable for mounting wheel assemblies are formed in the outer sides of the first box and the second box. An installation platform suitable for mounting a vehicle frame is arranged at the top. Second mounting holes suitable for mounting motor assemblies are formed in the front sides of the first box and the second box. The application can position independent wheels, so that a transversely coupled bogie becomes possible. The independent wheels of the tram are automatically centered, and the tram has the advantages of good self-guiding, small eccentric wear and the like. The manufacturing method is comprehensively controlled from raw material design to casting forming, so that the finally manufactured castings meet design requirements.

The utility model belongs to wheel pair technical field especially relates to a steering wheel pair with lubricating function, including mounting bracket and wheel, wheel is installed in mounting bracket left and right sides, is provided with the direction changing device in mounting bracket, and the direction changing device includes direction changing motor, gear, rack, rotation axis and mounting bracket. This steering wheel pair with lubricating function, through direction changing motor drive gear rotation, thereby drive rack removal, finally make mounting bracket and wheel change direction, through screw rod motor drive screw rod rotation certain number of turns, make the push board advance specified distance, will certain amount of lubricating oil through the connecting pipe press into the oil inlet, finally from the wheel axle surface lubrication hole flows out to the wheel axle and the wheel inner surface lubrication, improve the service life, through infrared speedometer detection unit time in the mark groove pass frequency to judge the wheel rotating speed, reach certain rotating speed through signal line to screw rod motor send signal and make it work to the wheel axle lubrication, reduce lubricating oil unnecessary loss.

The application provides an axle end grounding device, an axle and a bogie. The axle end grounding device comprises a sleeve, a second bearing, a frame body, a grounding ring and a second carbon brush assembly. The sleeve is internally provided with a first mounting hole, which makes a side wall of the sleeve form a first mounting wall. The grounding ring is internally provided with a second mounting hole, which makes a side wall of the grounding ring form a second mounting wall. The sleeve is sleeved with an inner ring of the second bearing. The sleeve is arranged in the second mounting hole. The second mounting wall is connected with the first mounting wall in a fit manner. An outer ring of the second bearing is sleeved with the frame body. A collecting cavity is formed between the frame body and the grounding ring. The frame body is provided with a mounting position for mounting the second carbon brush assembly. The mounting position is in radial communication with the collecting cavity. The axle end grounding device is installed on the end of the axle in a holding manner, the mounting reliability of the axle end grounding device is improved, and the driving safety is improved.

The invention discloses an axle box, an axle box sealing control method and a rail vehicle, and relates to the technical field of axle box sealing. Wherein the axle box body is provided with an inner cavity; the air supply pipe is used for supplying air into the inner cavity to increase the pressure of the inner cavity; the sealing assembly is connected with the axle box body and used for being switched from the first sealing state to the second sealing state when the inner cavity pressure is larger than the outer pressure of the axle box body so as to improve the sealing grade of the inner cavity. The axle box solves the problem that the sealing performance of the inner cavity of the axle box is difficult to effectively improve in a high-sandstorm environment.

The utility model relates to the technical field of passenger and freight trains, in particular to a cover closing device, which is arranged at the end part of a front cover on a bearing, is used for fixing the bearing on a train axle, and comprises an annular connecting plate, a movable plate and a fixed plate, the annular connecting plate is arranged on the end face of the front cover in an attached mode, a positioning unit connected with the front cover is arranged on the annular connecting plate, a backing ring corresponding to a screw hole in the front cover is further arranged on the annular connecting plate, and a fixing groove coaxial with the screw hole in the front cover and used for fixing a bolt is formed in the movable plate. The transmission assembly comprises a driving unit and a transmission unit. The cover closing device can be matched with the number of the screw holes in the end face of the front cover through the positioning unit and the transmission assembly, the cover closing device can be rapidly positioned and installed, the corresponding bolts are synchronously screwed into the corresponding screw holes to be fixed under the driving of external acting force, rapid and accurate positioning of the multiple bolts is guaranteed, and the cover closing device is convenient to use. The operation is simple; and the assembly efficiency is improved.

The system (7) for the transportation of loads and / or persons at height comprises at least one car (1) defining at least one cab (2) for the transportation of loads and / or persons, and comprises: - cable transport means (4) of the car (1) adapted to move the latter suspended at height; - movement means (6) of the car (1) onto the ground.

The utility model relates to the technical field of axle box bodies, and discloses an axle box body for steering of a motor train unit, which comprises an axle box body, side frames are fixedly connected to the left end and the right end of the axle box body, buffer mechanisms are arranged on the surfaces of the side frames, a connecting mechanism is arranged at the top of the axle box body, and a main shaft is rotatably connected to the center in the axle box body. A mounting seat is mounted at the top of the main shaft, side frames are fixedly connected to the left end and the right end of the axle box body, the buffer mechanism comprises a base, the base is mounted in the side frames, and hydraulic shock absorption damping buffer columns are fixedly connected to the top of the base. Vibration and shaking generated at the connecting positions of the carriages can be transmitted to the hydraulic damping buffering columns and the hydraulic damping springs in the side frames, the influence of vibration and shaking on the connecting positions of the carriages can be effectively reduced through the arrangement of the hydraulic damping buffering columns and the hydraulic damping springs, and therefore the stability of the axle box body and the safety of a train are guaranteed.

The utility model relates to a rolling type axle box device of an electric locomotive, which comprises an axle, a high-voltage direct-current grounding device, a bearing gland, a maintenance-free rolling bearing, a bearing outer box, a dustproof ring and a rear cover, the maintenance-free rolling bearing is arranged at the position of an axle head of the axle, and the bearing outer box is arranged outside the maintenance-free rolling bearing. The front and the back of the maintenance-free rolling bearing are positioned at the axle head of the axle through a bearing gland and a dustproof ring; a dustproof ring is arranged at the tail end of the bearing outer box, a rear cover is arranged outside the dustproof ring, the rear cover is fixed at the tail end of the bearing outer box, a labyrinth type dustproof ring is arranged at the matching position of the dustproof ring and the tail part of the rear cover, a felt ring is arranged in the dustproof ring, and a high-voltage direct-current grounding device is arranged at the end part of the shaft head. The service life is long, the original electric locomotive structure is kept unchanged, the bottom space of the axle is fully utilized, the usability is high, and the service life of the axle is prolonged.

The invention discloses a bogie and a railway vehicle, the bogie comprises a framework, a plurality of wheel pairs, a plurality of gear boxes, a plurality of traction motors and a plurality of brakes, and the framework comprises two side beams and a cross beam connected between the two side beams. The wheel pairs are arranged at intervals in the extending direction of the side beams and connected to the bottoms of the corresponding side beams through primary suspensions respectively. One side of each gear box is mounted on the corresponding wheel pair in a journal sticking manner, and the other side of each gear box is connected to the cross beam. The traction motors are in transmission connection with the corresponding gear boxes through couplings and connected to the adjacent cross beams respectively. And each brake is close to the corresponding wheel pair and is connected to the close cross beam. According to the bogie provided by the invention, the traction motor, the brake and part of the gear box are connected to the cross beam, and the unsprung mass is reduced as much as possible, so that the operation controllability, stability and comfort of a locomotive can be greatly improved.

The utility model discloses a bogie grounding device, which relates to the technical field of railway vehicle bogies and comprises an axle, wheels and a grounding device. The power assembly is in transmission connection with the axle; the grounding ring assembly is in transmission connection with the axle, and the grounding ring assembly comprises a first grounding ring and a second grounding ring which are spliced together; and the axle box is rotatably connected with the axle, the grounding device body is integrally arranged on the peripheral side face of the axle box, and the grounding device body is rotatably connected with the grounding ring assembly. According to the bogie grounding device, the technical problem that when a rolling stock runs, a connecting rod device of an existing bogie grounding device always moves in all directions to adapt to the displacement between an axle and a framework, and breakage is prone to occurring is solved, and the grounding ring assembly and the grounding device body are arranged separately; a bearing and a connecting rod do not need to be designed to avoid rotation of the grounding device body, the risk of breakage of the connecting rod device is avoided, and the operation reliability of the whole bogie grounding device is improved.

This invention relates to a bogie for rail transit vehicles, specifically a bottom-mounted wheel-axle straddle-type monorail train bogie with two parallel axles. The purpose of this invention is to solve the problem of connecting the axle to the original gearbox output shaft within the limited axial space of a monorail train. By using a double-splined drive shaft and designing a connection and fixing method between the double-splined drive shaft, the hollow axle, and the gearbox, the axial space utilization is reduced, thus solving the connection problem between the axle and the gearbox output shaft. It also solves the problem of shortened bearing life and increased operating resistance caused by axial deviation between the axle and the gearbox output shaft. Furthermore, the elastic deformation of the long shaft compensates for the difficulty in ensuring installation accuracy due to large differences in axial dimensions. In addition, this invention also solves the problem of rapid wheel replacement in monorail trains, saving time on wheel replacement maintenance and improving work efficiency.

The invention relates to a variable gauge device applied to a bogie, and relates to the technical field of rail transit equipment, the variable gauge device comprises a wheel set axle box mechanism, the wheel set axle box mechanism comprises an axle, two wheels are coaxially arranged on the axle, the wheels are in sliding connection with the axle in the axial direction of the wheels, and axle boxes are rotationally connected to the two ends of the axle; brake mechanisms are arranged on the outer sides of the wheels and used for being in sliding connection with the framework. The wheels are coaxially provided with connecting pieces, the connecting pieces are rotationally connected with the wheels, rigid connecting pieces are arranged between the connecting pieces and the corresponding brake mechanisms, one ends of the rigid connecting pieces are connected with the connecting pieces, and the other ends of the rigid connecting pieces are connected with the corresponding brake mechanisms; locking mechanisms are arranged on the outer sides of the axle boxes and used for locking the corresponding connecting pieces. According to the variable gauge device, the variable gauge device is simplified, the production cost of the variable gauge device is reduced, the mounting and dismounting convenience of the variable gauge device can be improved, and daily maintenance is facilitated.

The utility model discloses a kind of lightweight rotary arm positioning bogies, it is related to the design and manufacturing technical field of railway vehicle bogie, including side beam main body, the middle part inner surface of side beam main body is provided with sliding connecting block, and side beam main body is made of carbon fiber reinforced composite material multilayer extrusion, and sliding connecting block is made of titanium alloy 3D printing, the upper surface of the sliding connecting block is provided with rubber pad one, and the outer surface of sliding connecting block is slidably installed with main crossbeam. Compared with the existing ordinary bogie, the lightweight rotary arm positioning bogie solves the problems of excessive spring-down mass, material application limitations, structure optimization and lightweight synergy difficulties, manufacturing process innovation needs, full life cycle performance improvement, etc., and has essential differences with existing technology in systematic lightweight design concept, material application scheme, structure optimization method, manufacturing process integration, intelligent maintenance design, etc., achieving collaborative breakthroughs in multiple aspects of bogie.

Example embodiments relate to custom bearing adapters and techniques for retrofitting a railway vehicle with a bearing adapter to enable one or more accessories to be coupled to the axle of the railway vehicle. An example bearing adapter can include an upper structure configured to extend over an upper portion of a rail bearing coupled to an axle of the railway vehicle and one or more mounting elements located on the upper structure that are configured to enable the accessory to be coupled onto the railway vehicle. In some cases, the bearing adapter can further include a. lower structure configured to extend below' a lower portion and a. set of fasteners configured, to couple the structure and the lower structure in a fixed position around the rail bearing to form a mount for coupling the accessory' to the drive axle of the railway vehicle. In some instances, the accessory is a motor, sensor, or braking component.

The application provides a train wheel assembly and a train, and relates to the technical field of trains. The train wheel assembly comprises an axle, a wheel and a rear cover. A mounting hole is arranged at the center of the rear end of the wheel. The end of the axle is embedded into the mounting hole and connected with the wheel in a rotating mode. The rear cover is annular, and is sleeved on the outer side of the axle. The axle is in clearance fit with the inner wall of the rear cover. The rear cover is tightly connected with the rear end of the wheel, and covers the rear end of the mounting hole. A dynamic sealing element is arranged between the rear cover and the axle to seal the clearance between the axle and the rear cover. A first static sealing element is arranged between the rear cover and the wheel to seal the clearance between the rear cover and the wheel. The train comprises the train wheel assembly. The train wheel assembly and the train provided by the application have the advantages that the rear end of the mounting hole of the wheel has good sealing performance, foreign matters are not easy to enter the mounting hole, the lubricating medium in the mounting hole is not easy to deteriorate and leak, and the train wheel assembly is not easy to be damaged.

A support ring assembly for a railway axle having a support ring configured to be inserted between a rolling bearing and a collar of the railway axle, the support ring having an annular seat, a surface of a radially inner side wall fitted with a radial clearance over the collar and an end wall that abuts against the collar, an annular insert fitted into the seat by means of an annular shield and having an elastomeric annular element having at least two annular protuberances that engage with the collar, the annular element configured to engage with the collar so as to occupy the radial clearance.

The invention discloses an axle box end cover of an urban rail vehicle bogie, and relates to the technical field of rail transit, the axle box end cover comprises an axle box and an end cover, and the end cover is provided with a sealing assembly; according to the sealing assembly in the device, through the multiple transverse plates annularly and evenly distributed on the end cover, when a low-temperature environment is encountered, the transverse plates evenly distributed in the circumferential direction are pressed and locked, the arc-shaped pressurizing plate is driven to conduct radial compression compensation on the contracted sealing ring, and then adjustment of radial pressure on the outer side of the sealing ring can be achieved; when the environment temperature rises again, locking of the transverse plate can be relieved, the sealing ring can be restored to be in a free state, reversible adjustment along with environment changes is achieved, and the problem that in the prior art, due to the fact that an end cover is opened to replace a low-temperature special sealing ring, components in the axle box are polluted by impurities in air is solved. Therefore, the device improves the long-term service life and reliability of parts such as the bearing in the axle box.

The utility model discloses a high-strength axle box body for urban rail vehicles, which relates to the technical field of axle box bodies and comprises an axle box body, a supporting seat is connected to the lower portion of the inside of the axle box body, positioning blocks are connected to two sides of the supporting seat, supporting frames are connected to two sides of the bottom of the supporting seat, and positioning grooves are formed in the inner wall of the axle box body. Reinforcing blocks are connected to the two sides of the back of the axle box body. First supporting blocks and second supporting blocks are connected to the two sides of the outer surface of the axle box body, and second bolts are connected between the first supporting blocks and the positioning blocks and between the second supporting blocks and the positioning blocks. The end cover, the supporting seat, the first supporting block, the second supporting block, the reinforcing block, the positioning block, the positioning groove and the supporting frame are arranged, the first supporting block and the second supporting block are matched with the first bolt, the positioning block and the supporting seat are limited, meanwhile, the bottom of the positioning groove can be supported, and therefore the structural strength is improved; the structural strength is high, and the service life of the structure is prolonged.