202results about "Axle-boxes mounting" patented technology

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.

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.

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 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.

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.

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.

A hydraulic composite bushing includes: a core shaft, with a continuously spiral fluid channel groove; a rubber member, arranged around the core shaft, and having two recesses formed radially outside of the fluid channel groove and radially opposite to each other; a support ring arranged around the rubber member; an outer cover pressing on the support ring from a radially outer side thereof; and a sealing device provided at each end of a fluid channel tube arranged within the fluid channel groove. Two ends of the fluid channel tube pass through the rubber member radially to extend into two hydraulic chambers respectively, with the hydraulic chambers in communication with each other through the fluid channel tube. One end of the sealing device is arranged inside the flow channel groove and the other end thereof passes through the rubber member to extend into the hydraulic chambers.

The utility model relates to railway vehicle engineering technical field more specifically, especially, especially relates to a multipurpose four axle combined type railway locomotive bogie, include: traction seat, bogie frame, crossbeam, the bogie frame sets up in the both ends of traction seat, and crossbeam fixedly set up in the middle position of bogie frame body, secondary suspension spring is installed in the top of crossbeam, and secondary oil pressure shock absorber is installed on the outer wall of bogie frame both sides, and one end of secondary oil pressure shock absorber is movably connected with bogie frame, the utility model discloses the improvement of multipurpose four axle combined type railway locomotive bogie has good strength, long life, safe and reliable, high efficiency, can guarantee the high -efficient work of more safe and stable, most parts can also realize the commonality with the currently large -scale use locomotive, to save the advantage of use cost, thereby effectively solve the problem and the deficiency in prior art and equipment.

The present invention discloses a bogie frame, a bogie and a motor vehicle, and relates to the technical field of bogies. The bogie frame includes two side beams, a first crossbeam and a second crossbeam; the first crossbeam and the second crossbeam are both connected to one of the side beams at one end and connected to the other side beam at the other end; along the length direction of the side beam, the side beam includes a middle section and end sections arranged at both ends of the middle section, the width of the end section is greater than the width of the middle section; and the middle section is a bent structure with an arc-shaped recess; the first crossbeam and the second crossbeam are both hollow tubular structures. The structural layout of the bogie frame provided by the present invention is more compact; the width of the end section of the side beam is greater than the width of the middle section, which facilitates the installation of spring sleeves on the end sections and improves the reliability of the installation of the spring sleeves. In addition, the first crossbeam and the second crossbeam are both configured as hollow tubular structures, which is conducive to reducing the weight of the bogie frame and achieving lightweighting of the bogie frame.

The invention provides a torpedo tank car braking system and a torpedo tank car. The torpedo tank car braking system comprises an air compressor, a pressure storage tank, a parking air path and a braking air path. The parking air path comprises a parking manual valve and a parking electromagnetic valve; the braking air path comprises an emergency electromagnetic valve, a proportional valve, a reversing valve and an operating valve. The torpedo tank car comprises a driven walking mechanism, a driven end shaft seat, a tank body, a driving end shaft seat, a driving walking mechanism and a machine room. The two ends of the tank body are connected with the driven end shaft seat and the driving end shaft seat respectively and arranged on the driven walking mechanism and the driving walking mechanism through center plates respectively, and the mechanical room is arranged on the driving walking mechanism. According to the torpedo tank car braking system and the torpedo tank car, autonomous control and autonomous air supply are completely achieved, the problems that a locomotive head traction type torpedo tank car is high in cost and low in efficiency are solved, and the problem that an underframe and a braking system of an autonomous advancing type torpedo tank car are not suitable is solved.

The present invention discloses a vibration damping device for an axle box and an axle box, comprising: an axle box body, provided with a vibration damping hole; a vibration damping box, fitted to the surface of the side of the axle box body provided with the vibration damping hole and arranged around the outer periphery of the vibration damping hole, the vibration damping box having an opening corresponding to the position of the vibration damping hole, and a cavity provided inside the vibration damping box; damping particles filled in the cavity. The axle box body is provided with a vibration damping hole and a vibration damping box, and the vibration damping box is arranged near the vibration damping hole so that the vibration damping hole and the vibration damping box form a superimposed vibration damping effect, thereby achieving a better vibration damping effect. Damping particles are arranged in the cavity of the vibration damping box. In this way, during the operation of a rail vehicle containing the axle box, the damping particles in the cavity of the vibration damping box can be used to increase the structural damping, which plays a role in consuming vibration energy, thereby reducing the vibration of the axle box, especially being beneficial in suppressing broadband vibration and reducing vibration transmission, thereby reducing the vibration fatigue of the axle box, improving the working life of the axle box, and increasing the service life of the axle box.

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 provides a bogie side beam assembly, a bogie and a railway vehicle. The bogie side beam assembly comprises a side beam, a primary mounting seat, and an interface. The primary mounting seat has upper and lower clamping arms at one end, and a space for accommodating an end of the side beam is formed between the upper and lower clamping arms. The upper and lower clamping arms are respectively wrapped around the upper and lower surfaces of the end of the side beam and are fixedly connected with the end of the side beam. The middle bottom surface of the primary mounting seat is provided with the interface for being connected with a primary suspension device of the bogie. The bogie side beam assembly, the bogie and the railway vehicle provided by the application can adapt the side beam to bogies with different wheelbase, so as to realize the modular design of the bogie.

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 invention discloses a four-axle bogie, and relates to the technical field of railway vehicle bogies, the four-axle bogie comprises a framework and a framework supporting component, the framework is a rectangular framework structure, and a traction device is mounted on the framework; the number of the power wheel sets is two, the power wheel sets are symmetrically arranged in the framework, and a driving unit is connected to the power wheel sets; the two driven wheel sets are symmetrically arranged in the framework, the driven wheels are arranged on the outer sides of the power wheel sets and abut against the power wheel sets, and the diameter of the driven wheel sets is smaller than that of the power wheel sets; the braking devices are installed on the power wheel set and the driven wheel set, the axle distance and the total length of the bogie can be reduced, meanwhile, the weight of the bogie is reduced, and the bogie can adapt to locomotives which have low requirements for traction power and traction force but have the requirements for reducing axle weight and reducing the axle distance and the total length of the bogie.