109results about "Axle-boxes" patented technology

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 utility model provides a bogie device for track engineering machinery. The bogie device for the track engineering machinery comprises four sets of primary suspension devices which are installed at the positions, close to the two sides, of the bottom of a framework respectively. Two axles are installed at the positions, close to the two sides, of the bottom of the framework through axle box devices respectively, wheels are installed at the two ends of each axle respectively, lever type foundation braking devices are installed at the positions, close to the two sides, of the bottom of the framework respectively, each lever type foundation braking device comprises two braking levers, and the braking levers are arranged on the two sides of the framework respectively. The top end of one brake lever is provided with a horizontal lever body through a connecting rod, and the other end of each horizontal lever body is provided with a brake cylinder. According to the bogie device for the track engineering machinery, the basic braking capacity of a vehicle is effectively improved by increasing the configuration number of the brake shoes, the cost reduction effect is obvious compared with a unit brake type basic braking device, and meanwhile higher application stability is achieved.

Disclosed is a one-piece, integrally formed universal backing ring having an integrally formed, one piece annular structure with a center opening configured to be translated over a journal of a railcar axle and engage a dust guard and a dust guard fillet of the railcar axle. The annular structure includes an inner contoured surface having a profile that is contoured for a tight surface fit with a complementary surface of the dust guard fillet. The annular structure also includes a dust guard lip which projects over the dust guard fillet and engages the dust guard. The dust guard lip has a length extending generally parallel with an axis of the annular structure, and is configured to provide a mechanical interference fit of the dust guard lip with the dust guard of 0.052-0.1875 inches with a maximum diameter of the dust guard for each Class of railcar axle.

A method is provided for determining anomalies associated with railcar wheels of a railcar wheelset, or a railcar bogie assembly that the railcar wheelset is part of, or a track, during motion of the railcar wheelset on a track. An apparatus is removably attached to an axle of a railcar wheelset. The apparatus includes an axle-mounted sensor cuff. The sensor cuff includes one or more sensors, such as inertial measurement units (IMU's), mounted thereto to measure parameters that are used for determining the anomalies during motion of the railcar wheel on the track. The railcar wheelset is moved on the track. Measured parameters are collected from the one or more sensors and are used for determining the anomalies during motion of the railcar wheelset on the track.

[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.

Disclosed is an axle bearing arrangement for a rail vehicle, comprising at least one housing (1) and at least one cover (2, 4), wherein the housing (1) has a casing (8) which encloses a bore (6) extending along a central axis and is designed to receive a bearing unit, has a side surface (10) surrounding the bore (6) and at least one housing fastening bore (12), wherein the at least one cover (2, 4) has a flange (18) with a flange side surface (19, 20) facing the side surface (10) of the housing (1) and comprises at least one cover fastening bore (22), wherein the housing fastening bore (12) and the cover fastening bore (22) are designed to receive at least one fastening element for fastening the cover (2, 4) to the housing (1), wherein a part of the side surface (10) of the housing (1) and / or a part of the side surface (19,20) of the flange (18) is designed to project from the respective side surface (10, 19, 20) and defines a contact surface (24) in which the side surface (10) of the housing (1) and the side surface (19, 20) of the flange (18) are in contact with each other.,

Auxiliary unit for railway wheel sets, with hollow shafts of lightweight construction, which is designed as an electric machine (E-machine) with a reduction gear connected to it for starting and transporting a railway carriage, wherein the E-machine and the reduction gear are mounted on a common rotor shaft, and which comprises a connection unit which is firmly connected to the front of the auxiliary unit towards the bearing cover.

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 present invention relates to a wheel set for rail vehicles, having at least one wheel (102) and a wheel set axle (104) with at least one interference fit seating (108). A wheel hub bore (110) of the wheel (102) is joined to the interference fit seating (108) of the wheel set axle (104) by longitudinal pressing or shrinking. A surface coating (112) made of a non-ferrous metal or a non-ferrous metal alloy that increases the adhesion relative to a material of the wheel set axle (104) and / or of the wheel (102) is applied on the interference fit seating (108) of the wheel set axle (104) and / or on the wheel hub bore (110) of the wheel (102).

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 present invention provides a locomotive wheel set track changing device and a locomotive, and relates to the technical field of locomotive production and manufacturing. The locomotive wheel set track changing device comprises a track changing device, which comprises: an axle box beam, in which a locking cone and a plurality of locking bosses arranged along the axial direction of the axle are arranged; an axle box body, which is arranged in the axle box beam, and the outer wall of the axle box body is provided with a locking cone groove. A sliding mechanism is arranged outside the axle box body, and the sliding mechanism comprises a sliding sleeve and a locking retaining ring, the sliding sleeve is passed through the wheel, the locking retaining ring is arranged between the axle box beam and the sliding sleeve, and the locking retaining ring is provided with a plurality of locking grooves arranged along the axial direction of the axle on the side close to the axle box beam; wherein the sliding sleeve is configured to drive the wheel to move along the axial direction of the axle, so that the locking cone groove is selectively engaged with the locking cone, and at least one locking boss is selectively engaged with the corresponding locking groove. The locomotive wheel set track changing device has a large load-bearing capacity and high strength.

A low-floor vehicle, a bogie and a shaft end structure thereof, the shaft end structure comprising a speed measuring gear (1) and a friction disc (2), wherein the speed measuring gear (1) that has a central through hole (11) is used to fixedly connect to an end face of a vehicle wheel (10), and an outer end face of the speed measuring gear (1) is provided thereon with several speed measuring teeth (121) that are uniformly distributed in the circumferential direction; the friction disc (2) is fixedly connected to the speed measuring gear (1), and is specifically arranged on the outer end face of the speed measuring gear (1) on the radial outer periphery of the speed measuring teeth (121); a shaft end front cover (3) is mounted on an outer side of the speed measuring gear (1) and the friction disc (2), and a central part of the body of the shaft end front cover (3) is used to traverse the central through hole (11) of the speed measuring gear (1) and fixedly connect to a shaft end of an axle (20); and the shaft end front cover (3) is provided thereon with a speed sensor interface (31) and a brush interface (31) that are arranged corresponding to the speed measuring teeth (121) and the friction disc (2) respectively. The shaft end structure of the bogie is optimized, making full use of the space of the shaft end to integrate grounding and speed measuring functions into one bogie shaft end. The structure is simple and reliable, which reduces the degree of complexity of the bogie design and further reduces the difficulty of wiring.

The utility model discloses an independent wheel and a mounting structure thereof, the independent wheel comprises a wheel and an axle, two ends of the axle are respectively and coaxially connected with a set of bearing mechanism, the axle can rotate in the bearing mechanism, and the bearing mechanism comprises a bearing coaxially connected with the axle and a limiting structure coaxially arranged on the axle and used for limiting the axial movement of the bearing. The bearing is sleeved with an elastic supporting part, the elastic supporting part is perpendicular to the axle, and a supporting fixing plate used for being fixed to the bogie is fixed to the top of the elastic supporting part. The two ends of the axle are coaxially connected with the bearing mechanisms respectively, and the axle can rotate in the bearing mechanisms. As a common and effective mechanical transmission part, the bearing can greatly reduce the friction force when the axle rotates, so that the axle can smoothly and flexibly rotate, the independent wheel can stably and efficiently run in the walking process, the energy loss is reduced, and the running efficiency of the vehicle is improved.

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 invention discloses alloy steel which comprises the following components in percentage by weight: 0.19 to 0.23 percent of C, 0.25 to 0.40 percent of Si, 0.50 to 0.70 percent of Mn, 0.45 to 0.65 percent of Cr, 0.16 to 2.00 percent of Ni, 0.20 to 0.30 percent of Mo, 0.25 to 0.40 percent of V, 0.02 to 0.04 percent of Nb, less than or equal to 0.015 percent of P, less than or equal to 0.005 percent of S and the balance of Fe and inevitable impurities. The invention further discloses a preparation method. The preparation method comprises the steps of smelting, forging, carburizing, primary quenching, secondary quenching and tempering, primary cryogenic cooling and tempering, and secondary cryogenic cooling and tempering. In addition, the invention further discloses alloy steel which is prepared through the preparation method, and chemical components of the alloy steel are defined as before. The alloy steel is well matched in hardness, strength performance and impact performance, and can be used for manufacturing axle box bearings of high-speed motor train units.

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 provides a locomotive wheelset driving system and a locomotive. The locomotive wheelset driving system comprises a driving shaft assembly and a locomotive shaft assembly. The driving shaft assembly comprises a traction motor and a driving wheel, and the traction motor drives the driving wheel. The locomotive axle assembly comprises wheel pairs, an axle connected with the wheel pairs, and an axle-hung box and a driven wheel which are arranged between the wheel pairs, the axle penetrates through the axle-hung box, the axle-hung box is arranged on one side of the traction motor, the axle-hung box is provided with a notch, and a part of the traction motor is arranged in the notch; the driven wheel is driven by the driving wheel so as to drive the wheel pair to rotate.

The present invention relates to a rail vehicle adapter (14) for radially connecting a rail vehicle body to a bearing (16). The rail vehicle adapter (14) comprises: two lateral channels (42), each lateral channel (42) being defined by a pair of opposing lugs (42b, 42c) and a lateral guiding surface (42a) perpendicular to the opposing lugs (42b, 42c), the lateral channels (42) being adapted to cooperate with the rail vehicle body. The lateral guiding surface (42a) of the lateral channels (42) is curved in a section by a plane perpendicular to the rotational axis of the bearing.

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 present invention provides a wheel set axle box device for a gauge-changing locomotive, which relates to the technical field of locomotive production and manufacturing. The wheel set axle box device for a gauge-changing locomotive includes an axle box beam, an inner wall at the upper end of the axle box beam is provided with a locking frustum and a plurality of locking bosses arranged along the axial direction of the axle, and an outer wall at the lower end of the axle box beam is provided with a locking stop; an axle box body is arranged in the axle box beam, and a locking frustum groove is provided on the outer wall of the axle box body; a sliding mechanism is arranged outside the axle box body and penetrates through the wheel, and the sliding mechanism is provided with a plurality of locking card slots arranged along the axial direction of the axle and a locking groove arranged along the axial direction of the axle; the sliding mechanism is configured to drive the wheel to move along the axial direction of the axle, so that the locking frustum groove is selectively clamped with the locking frustum, at least one locking boss is selectively clamped with the corresponding locking card slot, and the locking stop is selectively clamped with one of the plurality of locking grooves. It has a large load-bearing capacity and meets the strength requirements.