255results about "Axle-boxes mounting" 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 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 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 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 utility model discloses a primary suspension system and a railway vehicle. The primary suspension system comprises a framework; the axle box body is arranged on the inner side of the side beam of the framework; the two primary rubber springs are connected between the top of the axle box body and the framework and arranged side by side in the longitudinal direction of the framework, and each primary rubber spring is of at least two-layer conical structure formed by a metal layer and a rubber layer; and the lower mounting seat is of an integrated structure, the two primary rubber springs are respectively connected with the lower mounting seat, and the lower mounting seat is connected with the axle box body. The primary rubber spring is an axle box overhead type primary rubber spring, and is compact in structure and small in occupied space; the two primary rubber springs are connected into a whole through the lower mounting base of the integrated structure, so that the two primary rubber springs have good consistency and have enough wheel set axle box positioning rigidity and vertical rigidity. The primary rubber spring is of at least two-layer conical structure formed by a metal layer and a rubber layer, and the vertical rigidity, the transverse rigidity and the longitudinal rigidity of the primary rubber spring can be well matched.

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.

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 novel train bogie framework damping device, which belongs to the technical field of train bogie frameworks, and is characterized by comprising a framework body, a damping component is fixedly connected to the bottom of the framework body, a hydraulic component is fixedly connected to the bottom of the damping component, and the damping component comprises a supporting bottom. The supporting bottom is fixedly connected to the bottom of the framework body, the bottom of the supporting bottom is fixedly connected with a limiting block, and the bottom of the limiting block is fixedly connected with a sliding rod. Damping of the framework body is achieved by arranging the damping assembly, and the situation that the riding comfort of passengers is reduced due to strenuous vibration of the framework body in the running process is avoided; and meanwhile, damage to each connecting part of the framework body in vibration is reduced, so that the service life of the framework body is prolonged, the hydraulic assembly is arranged to be matched with the damping assembly, so that damping operation is assisted, the damping effect is enhanced, and the situation that the vibration is enhanced by springs in the damping assembly is avoided.

A non-powered bogie and a railway vehicle, the non-powered bogie comprising a frame, a wheel set (2), a primary suspension device (3), a secondary suspension device (4) and a traction device (5), wherein the frame comprises a cross beam (12), side beams (11) and a primary mounting seat (13); the two side beams (11) are arranged in parallel to each other, and the cross beam (12) is connected between middle portions of the two side beams (11); the primary mounting seat (13) is disposed at end portions of the side beams (11); each side beam (11) comprises a side beam body (11a) and an air spring mounting portion (11b), with the air spring mounting portion (11b) being disposed on an outer side of a middle portion of the side beam body (11a); the cross beam (12) is provided with a central pin hole (1241); the wheel set (2) comprises an axle (21), wheels (22) and an axle box (23), with the axle box (23) being located on inner sides of the wheels (22); the primary suspension device (3) is arranged between the axle box (23) and the primary mounting seat (13); the secondary suspension device (4) is disposed on the air spring mounting portion (11b); and the bottom end of the traction device (5) is inserted into the central pin hole (1241) of the cross beam (12). In the non-powered bogie and the railway vehicle, the stability of supporting and buffering a vehicle body can be improved, and the primary mounting seat (13) as an independent component is assembled with the side beams (11) and can be suitable for bogies with various wheelbases, thereby reducing the production cost.

The present invention discloses a bogie axle box for high-speed trains with an overload self-adjusting structure, comprising a bogie housing, an axle box housing, a gauge changing mechanism, and further comprising: an air spring, the air spring being located at the gap between the bogie housing and the axle box housing; a support member for reducing the friction between the axle box housing and the axle box support rail, the support member being arranged at one end of the axle box housing in contact with the axle box support rail; a first groove, the first groove being arranged on the outside of the axle box housing; a detection member acting on the first groove and the sunken track of the track changing device, and being able to inform the driver of the gauge changing state. In the present invention, when the gauge change is completed and the wheel pair distance is adjusted, the second connecting rod is separated from the pressure switch under the elastic action of the first spring and the second spring, thereby disconnecting the circuit, reminding the operator in the control room that the limit pin has been re-locked, and the real-time state of the gauge changing operation can be effectively informed to the operator in the control room.

A symmetrical multi-unit railroad freight car, such as a 3-pack railroad intermodal well car, has body units that are connected symmetrically. The body units have a symmetrical arrangement of end trucks and shared trucks. The end trucks are 70 Ton Trucks. The shared trucks are 125 Ton trucks. The trucks have passive steering using geometric rocker stiffnesses. The rockers in the end trucks have a smaller radius of curvature than the rockers in the shared trucks. The spring groups in the shared trucks are stiffer than the spring groups in the end trucks. The spring groups in the end trucks have a different proportion of damping when empty, a shorter live load range of travel, and greater reserve travel than the shared trucks. The end trucks and the shared trucks have four-cornered damper groups that have the same sized damper wedges. The damper wedges have non-metallic wear pads.

The present invention belongs to the field of bogie primary suspension systems, and specifically relates to a leaf spring and suspension system with long service life, including an end connector connecting two spring leaves arranged opposite to each other up and down, the end connector including a rotating shaft and two relatively rotatable fixing seats sleeved on the rotating shaft and respectively fixing the two spring leaves, the fixing seats including an enclosing portion enclosing the ends of the spring leaves in at least three directions to fix the spring leaves, the present invention has a long service life and low maintenance cost.

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.

Provided are a bogie and a vehicle, relating to the field of bogie structures. The bogie comprises: a framework; a suspension apparatus connected to the framework, wherein the suspension apparatus comprises primary suspension members (31) and secondary suspension members (32), and the secondary suspension members (32) are formed as air springs; and an anti-rolling device, comprising a bolster anchor (51) and a torsion bar (52), wherein the bolster anchor (51) is arranged above the secondary suspension members (32); and end portions of the torsion rod (52) are rotatably connected to the framework by means of links, and a side portion of the torsion rod (52) is rotatably connected to the bolster anchor (51). The air springs can provide the most suitable stiffness characteristics for a vehicle, so as to ensure that the vehicle has high comfort in the operation process; in addition, the air springs can also automatically inflate or deflate on the basis of changes in passenger load, so as to ensure that the floor surface of the vehicle is kept unchanged within a fixed height range, thereby facilitating passengers' boarding and alighting at the platform, and improving the passenger experience during travel.

To provide a bogie frame component for a railway vehicle that can reduce an amount of welding on a side beam.SOLUTION: A component of a bogie frame (10) for a railway vehicle includes a side beam (11). The side beam (11) includes two side plates (111b) and a top plate (111a). The side plates (111b) face each other. The top plate (111a) connects the side plates (111b) to each other at one end in a height direction of the side plates (111b). The side beam (11) is open on the opposite side in the height direction from the top plate (111a).SELECTED DRAWING: Figure 2

The present invention provides a modularly designed axle box body with a flexibly adjustable swivel arm length, comprising: an axle box bearing block unit and a swivel arm joint seat unit. The axle box bearing block unit is connected to the swivel arm joint seat unit by means of a flange plate connection structure; the flange plate connection structure comprises a first flange connected to the axle box bearing block unit and a second flange connected to the swivel arm joint seat unit; and the first flange is connected to the second flange by means of multiple sets of bolts and nuts. The present invention can solve the problems of excessive casting mold types, long casting production cycles, high manufacturing costs, waste of resources, environmental pollution, heavy burden on production lines, and the like caused by existing swivel arm axle box body products being constrained by the diversity of axle box bearing and swivel arm joint specifications and swivel arm lengths.

A roller bearing adapter pad system configured for use with a three-piece bogie, the roller bearing adapter pad system including a roller bearing adapter (599), an adapter pad. A roller bearing adapter configured to engage a roller bearing, the roller bearing adapter comprising: a coronal top surface (506); a bottom surface configured to engage the roller bearing; a first vertical shoulder and a second vertical shoulder (506) projecting upwardly from opposite lateral edges of the coronal top surface, each vertical shoulder having a lifting lug (600); a first longitudinal stop and a second longitudinal stop (504), the first longitudinal stop and the second longitudinal stop protruding upwardly from opposite longitudinal edges of the top surface; wherein the roller bearing adapter is symmetrical about the transverse center line and symmetrical about the longitudinal center line; and wherein the lift lug does not project laterally outward beyond the outer edge of each vertical shoulder. An adapter pad engaged with a roller bearing adapter and configured to engage with a side frame axle box cap, the adapter pad comprising: a continuous top plate having a central portion; first and second upwardly folded regions protruding upwardly from opposite edges of the central portion; a first transverse flange protruding outwardly from the first upwardly folded region, the first transverse flange having a first transverse edge; and a second transverse flange protruding outwardly from the second upwardly folded region, the second transverse flange having a second transverse edge, the continuous roof having a first longitudinal edge and a second longitudinal edge; a continuous bottom plate having a central portion; first and second upwardly folded regions protruding upwardly from opposite edges of the central portion; a first transverse flange protruding outwardly from the first upwardly folded region, the first transverse flange having a first transverse edge; and a second transverse flange protruding outwardly from the second upwardly folded region, the second transverse flange having a second transverse edge, the continuous base plate having a first longitudinal edge and a second longitudinal edge; and an elastomer member disposed between the top plate and the bottom plate; wherein the first and second laterally protruding flanges of the top plate and the first and second laterally protruding flanges of the bottom plate are disposed entirely above the vertical shoulder of the roller bearing adapter.

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.

This axlebox support device that is for a railway vehicle truck and that is equipped with a coil spring interposed between an upper surface of an axlebox and a truck frame, said device comprising: a support arm that protrudes from the axlebox on one side in the front-rear direction of the truck and supports the axlebox; a cylindrical laminated rubber that has an outer cylinder having a shaft line, a cylindrical rubber disposed inside the outer cylinder, and an axle disposed inside the cylindrical rubber and that is disposed on one side of the axlebox; a fixing tool that fixes the outer cylinder, which constitutes the outer circumferential surface of the cylindrical laminated rubber, to the truck frame in a state where the outer circumferential surface of the cylindrical laminated rubber is exposed; and a positioning part for positioning the axle on the support arm.

A wheelchair-accessible low-floor tram bogie relates to the technical field of low-floor tram bogies and includes a frame, primary longitudinal tie rods, a primary suspension spring assembly, a brake caliper, a brake disc, a coupling, a motor, a secondary suspension spring assembly, a secondary vertical damper, a traction tie rod, a transverse stop, a magnetic rail brake, wheels, an axle bridge, an axlebox, a gearbox, and a wheel core assembly. The bogie of the present invention meets the requirements for convenience and safety for disabled people passing through the vehicle, as well as passenger comfort, while meeting the standard vehicle width and standard track gauge, without compromising low-floor tram bogie performance and maintaining an unchanged vehicle floor surface.

A roller bearing adapter pad system configured for use with a three-piece truck comprising a roller bearing adapter (599) configured to engage a roller bearing, the roller bearing adapter comprising a crowned top surface (506); a bottom surface configured to engage a roller bearing; first and second vertical shoulders (506) that project upwardly from opposite lateral edges of the crowned top surface, each vertical shoulder having a lifting lug (600); first and second longitudinal stops (504) that project upwardly from opposite longitudinal edges of the top surface; wherein the roller bearing adapter is symmetrical about a lateral centerline and symmetrical about a longitudinal centerline; and wherein the lifting lugs do not protrude laterally outward beyond an outer edge of each of the vertical shoulders; an adapter pad engaged with the roller bearing adapter and configured to engage a side frame pedestal roof, the adapter pad comprising a continuous top plate having a central portion, first and second upturned regions projecting upwardly from opposite edges of the central portion, a first lateral flange projecting outwardly from the first upturned region, the first lateral flange having a first lateral edge, and a second lateral flange projecting outwardly from the second upturned region, the second lateral flange having a second lateral edge, the continuous top plate having first and second longitudinal edges; a continuous bottom plate having a central portion, first and second upturned regions projecting upwardly from opposite edges of the central portion, a first lateral flange projecting outwardly from the first upturned region, the first lateral flange having a first lateral edge, and a second lateral flange projecting outwardly from the second upturned region, the second lateral flange having a second lateral edge, the continuous bottom plate having first and second longitudinal edges; and an elastomeric member disposed between the top and bottom plate; wherein the first and second laterally projecting flanges of the top plate and the bottom plate are entirely disposed above the vertical shoulders of the roller bearing adapter.

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.

The invention discloses a primary nonlinear vertical suspension system and a railway vehicle, and belongs to the technical field of railway vehicle dynamics and vibration control. The system comprises a first mounting support, a first spring mounting seat fixedly connected with the first mounting support, a conical spring arranged in the first spring mounting seat, a second spring mounting seat connected with the conical spring, and at least one pair of belleville springs arranged between the first spring mounting seat and the second spring mounting seat, the tray is fixedly connected with the second spring mounting seat; the spiral spring is arranged on the tray; the second mounting support is fixedly connected with the spiral spring; one end of the belleville spring is hinged to the second spring mounting base, and the other end of the belleville spring is hinged to the first spring mounting base. The technical problem that a primary suspension system adopted in the prior art affects the vertical stability of the railway vehicle due to the spring stiffness can be solved.

The embodiment of the present application provides a multi-axle bogie and a rail vehicle, wherein the frame of the multi-axle bogie includes: a crossbeam, a side beam, and a center plate beam; wherein a plurality of wheel sets are installed at the bottom of the side beam, and an axle box device is installed on the outer side of each wheel set, and the axle box device is respectively connected to the wheel axle of the wheel set and the bottom of the side beam; a side bearing device is installed at the middle top of the side beam, and the top of the side bearing device is used to contact the vehicle body to reduce the friction force of the relative rotation between the frame and the vehicle body; a center plate device is installed on the center plate beam, and the top of the center plate device is in contact with the vehicle body to adapt to the relative rotation between the vehicle body and the frame. The bogie can adapt to the rotational motion between the vehicle body and the bogie, which is conducive to improving the performance of the vehicle passing through curves, and is suitable for the technical field of bogies for large rail engineering vehicles.

Provided is a shaft spring having excellent nonlinear spring characteristics and capable of reducing the risk of affecting durability. The shaft spring includes a shaft portion (6), an outer tube (2), and an elastic portion (3) interposed between the shaft portion (6) and the outer tube (2), the elastic portion (3) being formed by alternately laminating an elastic body layer (4) and a hard tube (5) in a concentric circle shape, and the shaft spring has a structure in which an annular elastic body support portion (7) extending outward in a radial direction is formed at a lower end of at least one of the shaft portion (6) and the hard tube (5), the elastic body layer (4) is formed to the elastic body support portion (7) in contact with an outer peripheral surface of the shaft portion (6) or the hard tube (5) in which the elastic body support portion (7) is formed, and when an outer diameter of the elastic body support portion (7) is set to a certain degree or more or when a load in an axial direction is applied to the shaft spring, a part of the load is applied to the elastic body support portion (7).

The application discloses a railway wagon running device and relates to the technical field of running devices, which comprises two symmetrical bottom frame mounting seats, axle box assemblies arranged on the corresponding bottom frame mounting seats, wheel pairs connected between the two axle box assemblies through bearings at two ends, a brake device arranged between the two bottom frame mounting seats and fixed below a vehicle body bottom frame, a traction pull rod arranged between the axle box assemblies and the bottom frame mounting seats in cooperation, two suspension springs, a vertical hydraulic shock absorber and a transverse hydraulic shock absorber. The application has the advantages of compact structure, light weight, reduced self weight of the whole vehicle, improved vehicle operation benefit, stable vehicle operation ensured by the cooperation of the suspension springs, the vertical hydraulic shock absorber and the transverse hydraulic shock absorber.

The invention provides a lock shaft spring compression system and method configured to lift a rail vehicle wheel from a rail and transport the lifted wheel along the rail. In one embodiment, the present disclosure discloses a system that can lift lock axle track wheels off the track and allow a lock axle train to be transported out of a main line. One or more coil springs may be provided between the frame and the axle box to distribute the weight of the train and forces acting thereon. The present disclosure provides a technical solution lacked in conventional systems by providing at least one platform for an actuator configured to apply a force to one or more train elements to compress a coil spring and to allow a lock axle wheel to rise from a surface (e.g., a railway track), and the wheel is lifted from the track by overcoming the pressure of the spiral spring.