336results about "Rail-engaging wheels" patented technology

A wheel includes a boss, a rim, and a web. The rim includes a tread and a flange. A center of the rim in the axial direction of the wheel is disposed closer to the flange in the axial direction than a center of the boss in the axial direction is. The web has a plate-thickness center line that has a linear shape when the wheel is viewed in its longitudinal section. When an angle that the plate-thickness center line forms with the axial direction is denoted by a, a distance in the axial direction from a side face of the rim to an outer end of the plate-thickness center line is denoted by Pw, a length of the rim in the axial direction is denoted by Wr, and Pw / Wr is denoted by L, the wheel satisfies the expression L≥0.0223α−1.363. Where, the angle α is 90° or less.

Embodiments of the present application provide a rail apparatus for a three-dimensional warehouse stacker, applied to the technical field of semiconductor handling devices. The rail apparatus comprises a sky rail and a ground rail. The sky rail is hoisted on the upper part of a roadway in a three-dimensional warehouse, is movably connected to the top of a stacker, and is used for guiding the horizontal movement of the stacker in the air. The ground rail is parallel to the sky rail and mounted at the bottom of the roadway in the three-dimensional warehouse, the ground rail comprises guide rails and a locomotion rail, the locomotion rail is arranged in parallel between the two guide rails, the guide rails are used for guiding the horizontal movement of the stacker on the ground, and the locomotion rail is a traveling rail used for the horizontal movement of the stacker. The horizontal movement of the stacker is supported and guided by the ground rail and the sky rail of a new structure, thereby ensuring the stable and high-precision operation of the stacker.

A grid framework structure includes a first set of parallel rails or tracks and a second set of parallel rails or tracks extending substantially perpendicularly to the first set of rails or tracks in a substantially horizontal plane to form a grid pattern. The grid is supported by a set of uprights to form a plurality of vertical storage locations beneath the grid for containers to be stacked between and be guided by the uprights in a vertical direction. A load handling device includes a body mounted on a first set of wheels and a second set of wheels arranged to engage with the tracks. A gripper assembly is provided for latching to a storage container via a deformable flexure mechanism movable between a locked configuration and a release configuration.

The invention discloses a fault early warning hub unit, and relates to the field of railway vehicle body parts, the fault early warning hub unit comprises a rim and spokes, the inner wall of the rim is provided with a plurality of positioning blocks along the circumference, the two ends of each positioning block are provided with contact switches, the contact switches abut against each other, the side walls of the spokes are rotatably connected with air deflectors, and the air deflectors are rotatably connected with the spokes. A hydraulic mechanism is movably connected between the air guide plate and the spokes, a mounting groove is formed in the middle connecting part of the spokes, an oil storage shell is arranged in the mounting groove, the hydraulic mechanism is communicated with the oil storage shell, and the oil storage shell is filled with hydraulic oil. Monitoring of deformation of the whole hub unit is achieved through the circle of positioning blocks on the rim, when the rim deforms, the positioning blocks can be relieved from the abutting state, the contact switch is turned on, the positioning blocks are powered on, a vehicle owner is reminded that the position is deformed, and the early warning and monitoring effect of the hub unit on hub deformation is effectively improved.

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

A wheel includes a boss, a rim, and a web. A rim-width center is positioned on a flange side of the rim with respect to a boss-width center. A plate-thickness center line of the web has a linear shape when the wheel is viewed in a longitudinal section. The plate-thickness center line is inclined with respect to a radial direction of the wheel in such a way as to be farther from the flange as the plate-thickness center line extends outward in the radial direction. When a distance in an axial direction of the wheel from a side face of the rim to an outer end of the plate-thickness center line is taken as “Pw” and a length of the rim in the axial direction is taken as “Wr”, Pw / Wr is less than 0.40.

This invention discloses a spoked wheel and a rail transit vehicle, relating to the field of vehicle engineering technology. The spoked wheel includes a rim, a hub, and multiple spokes; the hub is located at the center radially of the rim; all spokes constitute a spoke assembly, with the inner radial end of each spoke fixed to the outer circumferential surface of the hub and the outer radial end fixed to the inner circumferential surface of the rim; on the inner circumferential surface of the rim, the connection area of ​​the spoke assembly is located at the center axially, and annular mounting grooves are respectively provided on both sides of the connection area axially, in which noise-reducing damping rings are installed. Because the rim provides mounting space for noise-reducing damping rings axially on both sides of the connection area with the spoke assembly, noise-reducing damping rings can be installed to reduce noise, thereby improving the noise reduction capability of the spoked wheel.

The invention discloses a straddle type monorail train bogie and a straddle type monorail train. The straddle type monorail train bogie comprises a framework assembly, a walking wheel assembly, a driving system and a fixing assembly, the walking wheel assembly comprises walking wheels and wheel axles, the wheel axles, the driving system and the walking wheels are integrated into a whole, and the fixing assembly is arranged on the framework assembly; the driving system directly drives the walking wheels to rotate, a transmission system is omitted, and the overall mass of the bogie is reduced; the fixing assembly and the fixing beam of the framework assembly detachably clamp the wheel shaft, the driving system and the walking wheel, and the wheel shaft is located on the lower side of the fixing beam, so that under the condition that the fixing assembly is separated from the fixing beam, the wheel shaft can drive the driving system and the walking wheel to be synchronously separated from the framework assembly from the lower side of the fixing beam, the framework body does not need to be disassembled, and the operation is convenient. The walking wheel assembly and the driving system can be disassembled by disassembling the walking wheel assembly and the driving system, then the walking wheel is disassembled, the mode that the wheel is discharged downwards in the vertical direction is achieved, the walking wheel is disassembled without being disassembled and replaced, the wheel replacing time is saved, and the wheel replacing efficiency is improved.

A wheel includes a boss, a rim, and a web. When viewed in a longitudinal section of the wheel, the boss includes a contour extending from the web to an end face in the axial direction of the boss. The contour includes curves. A first curve is continuous with the web. The first curve has a first radius of curvature. The second curve is arranged on the end face side in the axial direction of the boss relative to the first curve. The second curve has a second radius of curvature. The second radius of curvature is greater than the first radius of curvature. The path length of the second curve is greater than the path length of the first curve.

According to the straddle type monorail train bogie and the straddle type monorail train, in the straddle type monorail train bogie, a first fixing assembly and a connecting beam in a framework assembly detachably clamp the first end of an axle, and a second fixing assembly and the connecting beam detachably clamp the second end of the axle; the wheel shaft and the connecting beam are relatively fixed in the axial direction, the wheel shaft can rotate around the axis of the wheel shaft, the walking wheel is detachably and fixedly connected with the wheel shaft through the hub, the driver drives the wheel shaft to rotate through the gear box and the chain coupling, and the chain coupling is detachably in transmission connection with the wheel shaft. By detaching the chain coupler, the first fixing assembly and the second fixing assembly, the whole walking wheel assembly can be driven by the axle to be separated from the connecting beam, the walking wheel assembly can be detached without detaching the framework assembly, the walking wheels on the walking wheel assembly are detached after the walking wheel assembly is separated from the framework assembly, the walking wheels are detached without being detached, and the wheels are replaced. And the wheel replacing time is saved, and the wheel replacing efficiency is improved.

A load handling device is disclosed for lifting and moving containers stacked in a storage system having a grid structure. The load handling device includes a container receiving space; a lifting mechanism arranged to lift a container; a vehicle body; a wheel assembly arranged to support the vehicle body, the wheel assembly having a first set of wheels and a second set of wheels; and a drive mechanism for selectively driving rotation of the first set of wheels and the second set of wheels. Each wheel includes a wheel positioning mechanism configured to rotate the wheel about a respective second axis of rotation to selectively lower or raise the first set of wheels or the second set of wheels to selectively engage or disengage the first set of wheels with a first set of grid members or the second set of wheels with a second set of grid members.

The invention discloses a light-weight rail wheel with good thermal mechanical performance, a wheel disk is of a wave-shaped structure, the outer side contour line and the inner side contour line of the wheel disk are respectively composed of a plurality of arc sections which are connected, the arc sections forming the outer side contour line comprise a first arc section, a fourth arc section, a sixth arc section, an eighth arc section and a tenth arc section, and the first arc section, the fourth arc section, the sixth arc section, the eighth arc section and the tenth arc section are connected. The arc sections forming the inner side contour line comprise the second arc section, the third arc section, the fifth arc section, the seventh arc section, the ninth arc section, the eleventh arc section and the twelfth arc section. The purpose of light weight of the wheel is effectively achieved by adjusting different arc radiuses and circle center positions, the radial strength of the radial plate is moderately reduced, the radial plate and the rim are more deformed in the diameter direction during braking thermal deformation, the axial deformation trend of the radial plate and the rim is reduced, and the service life of the wheel is prolonged. Therefore, the stress state of the wheel under the braking thermal load effect can be improved, and it is guaranteed that the wheel has good thermal mechanical performance and fatigue performance.

A chassis service vehicle (1, 100) for servicing a bottom of a train and a method of moving along a track using the chassis service vehicle (1, 100) are provided. The chassis maintenance vehicle (1, 100) comprises a platform (3) having a width (w), a maintenance unit (4) connected to the platform (3) and configured to perform maintenance operations at the bottom of the train, and two pairs of support arms (5) positioned along the length (l) of the platform (3) and extending in the width direction. Each support arm (5) comprises a support wheel (7) that is free to rotate about an axis of rotation, driving wheels (8) that rotate about an axis of rotation, the support arms (5) being arranged to connect the support wheel (7) and the driving wheels (8) to the platform (3), where at least two driving wheels (8) are motorized driving wheels. The driving wheel (8) is configured to contact a bottom (9) of the rail bar (10) of the track (2), the supporting wheel (7) is configured to contact an underside of a rail head (11) of the rail bar (10) of the track (2), and each supporting arm (5) is provided with a retraction mechanism (12) for retracting the supporting arm (5) towards the platform (3).

The utility model relates to the technical field of railway vehicles, in particular to an elastic wheel with adjustable compression amount, a wheel set and a railway vehicle. The elastic wheel with the adjustable compression amount comprises a wheel rim, a wheel center, an elastic vibration reduction piece, a pressing ring and an adjusting ring. The radial outer edge portion of the wheel center is provided with an installation notch, the pressing ring is arranged on the installation notch, and the pressing ring, the radial outer edge portion of the wheel center and the wheel rim form an annular inner cavity used for containing the elastic damping piece in a surrounding mode. The elastic damping piece is arranged in the annular inner cavity; the wheel center and the pressing ring located on the side of the annular inner cavity are each provided with an annular groove, and the adjusting rings are arranged in the annular grooves. The wheel center and the pressing ring are each provided with an adjusting bolt penetrating in the axial direction, and the end of each adjusting bolt abuts against the corresponding adjusting ring. According to the elastic wheel capable of adjusting the compression amount, the position of the adjusting ring is mainly controlled through the adjusting bolt, so that the compression amount of the elastic vibration reduction rubber part is controlled, and the problem that the wheel is slow is solved; an anti-slowdown base plate and a limiting groove structure are arranged, so that the problems that the elastic wheel is excessively slowdown, and a wheel rim and a wheel center have an overlarge turning angle are solved; in addition, a conductive metal reed is adopted to replace a traditional backflow cable structure, so that the problem of loosening or breakage caused by the fact that the backflow cable is pulled by a wheel or foreign matter is effectively avoided.

The invention discloses a safety wheel for a rubber wheel metro vehicle bogie and a preparation method of the safety wheel. The wheel comprises the following chemical components in percentage by mass: 0.52%-0.60% of C, 0.30%-0.40% of Si, 0.70%-0.80% of Mn, less than or equal to 0.015% of P, less than 0.010% of S, 0.20%-0.30% of Cr, 0.05%-0.23% of Ni, 0.04%-0.06% of V, (60-80) * 10 <-4%) of N, less than or equal to 0.012% of Al, less than or equal to 0.005% of Ti and the balance of Fe and inevitable impurities. The composition proportion of N and Al is controlled by adjusting C and adding V, so that the volume fraction of the tread ferrite reaches 5-12%, and the volume fraction of the rim reaches 10-16%; meanwhile, the metallurgical quality is controlled, the proportion of plastic inclusions is larger than or equal to 90%, the proportion of the size below 10 micrometers is larger than 85%, and the wrapping rate is larger than or equal to 80%. And finally, the average value of the fracture toughness of the wheel is larger than or equal to 85 MPam1 / 2, the unit value is larger than or equal to 80 MPam1 / 2, the rolling contact fatigue resistance is remarkably improved, and the cracking risk of large-size inclusions is reduced.

The rail mobile lifting work platform rail clamp belongs to the lifting work platform technology, and the existing rail clamp is used for limiting the accidental movement of the equipment on the rail under the special conditions such as strong wind, and is not suitable for the rail clamping and stabilizing of the lifting work platform during movement. The threaded rod and the nut are matched through the transmission thread, the power machine lifts the nut through the threaded rod, the lifting of the nut is converted into the lifting of the clamping assembly and the approach or separation of the first rail clamp wheel and the second rail clamp wheel through the clamping assembly. When the first rail clamp wheel and the second rail clamp wheel approach each other to clamp the rail, the rail clamp wheel can roll along the rail, so that the lifting work platform is clamped and stabilized during movement.

A multi-part rail wheel is shown and described, comprising a wheel tyre (8), a wheel body (9) which consists of a light metal material and has a hub opening (14) in which a bearing surface (20, 21) is provided on which, during use, an outer ring (17, 18) of a rolling bearing (15, 16) is supported or which, during use, is connected to the outer surface of a shaft or a shaft stub, said rail wheel also comprising at least one elastic body (10) which is arranged between the wheel tyre (8) and the wheel body (9) and by means of which the wheel tyre (8) is supported elastically on the wheel body (9). In order to achieve good corrosion resistance, high resistance to mechanical action and to avoid electrical current damage in the wheel bearing, it is proposed that at least the bearing surface (20, 21) in the hub opening (14) of the wheel body (9) is covered with an electrically insulating oxide layer (OX) produced by electrochemical anodisation. The invention further relates to a wheel set for a rail vehicle having such rail wheels.

The present application belongs to the field of railway tractor technology, and discloses a mobile railway vehicle with a monitoring weight transfer process, comprising: a vehicle body for towing a vehicle; a hook mechanism installed at the rear side of the vehicle body for connecting the vehicle body with the vehicle to be towed; a mobile device comprising wheels, elastic levers, a connecting assembly and a driving assembly, wherein the number of wheels is multiple, and the multiple wheels are symmetrically distributed on both sides of the vehicle body. When the weight of the towed vehicle is large, the wheels will still have a tendency to slip even if the hook mechanism completes the weight transfer. However, due to the presence of the elastic levers, the elastic levers protruding from the wheels will also contact the track or ground while the wheels contact the track or ground, forming additional friction and gripping force, thereby assisting the wheels to drive the vehicle forward, and thus realizing the towing operation.

The present invention provides a railway wheel in which the hub portion has excellent toughness. The railway wheel of the present disclosure includes a rim portion, a hub portion having a through-hole, and a plate portion. The chemical composition of the railway wheel is: C: 0.60 to 0.80%, Si: 1.00% or less, Mn: 0.10 to 1.50%, P: 0.050% or less, S: 0.030% or less, N: 0.0200% or less, and the remainder consisting of Fe and impurities. In a cross section of the hub portion after the hub portion is cut with a plane containing the central axis in the direction of the central axis of the through-hole, in a 15 mm x 15 mm region defined as a rectangular region by a plurality of axial line segments arranged at 15 mm intervals in the radial direction of the railway wheel from the inner peripheral surface of the through-hole in parallel with the central axis and a plurality of radial line segments arranged at 15 mm intervals in the direction of the central axis from the surface of the hub portion on which the opening of the through-hole is formed perpendicularly to the central axis, the average C concentration of each rectangular region in the cross section of the hub portion is less than 0.90 mass%.

A wheel (100) includes a boss (10), a rim (20), and a web (30). The rim (20) includes a tread (21) and a flange (22). A center (Cr) of the rim (20) in the axial direction of the wheel (100) is disposed closer to the flange (22) in the axial direction than a center (Cb) of the boss (10) in the axial direction is. The web (30) has a plate-thickness center line (A) that has a linear shape when the wheel (100) is viewed in its longitudinal section. When an angle that the plate-thickness center line (A) forms with the axial direction is denoted by α, a distance in the axial direction from a side face (24) of the rim (20) to an outer end (Aa) of the plate-thickness center line (A) is denoted by Pw, a length of the rim (20) in the axial direction is denoted by Wr, and Pw / Wr is denoted by L, the wheel (100) satisfies the expression L ≥ 0.0223α-1.363. Where, the angle α is 90° or less.

The invention relates to the technical field of coal mine inspection, and discloses a coal mine inspection robot which comprises a track body and an inspection machine body, an inspection head is mounted on the surface of the inspection machine body, connecting frames are fixedly connected to the two sides of the inspection machine body, a plurality of main rollers are rotationally connected to the surfaces of the connecting frames, and the main rollers abut against the surface of the track body. A penetrating rod is arranged in the main roller in a penetrating mode, the main roller is connected with an auxiliary roller through the penetrating rod, the main roller and the auxiliary roller are equal in size and can be attached to each other to form a whole, a clamping groove is formed in the surface of the main roller, the main roller is connected with a plurality of ratchets through the clamping groove, and a plurality of clamping teeth matched with the ratchets are fixedly connected to the surface of the auxiliary roller. The method has the effect of effectively improving the braking capacity and safety of the inspection robot.

The utility model discloses an air track pneumatic tire coal transport vehicle and an air track transport system. The transport vehicle comprises a bogie and a vehicle body. The bogie is connected with the vehicle body through a central suspension device; the vehicle body runs on the aerial track through the bogie; the bogie comprises a framework, a plurality of wheel assemblies, a motor driving device, a foundation braking device and a gear box, each wheel assembly comprises two tires, and the two tires are inflatable tires and are rotatably installed on the two sides of the framework in the width direction respectively; the motor driving devices are arranged at the two ends of the framework, the gear boxes are connected with the framework, the gear boxes are arranged between the corresponding motor driving devices and the corresponding wheel assemblies, and the motor driving devices transmit torque to the gear boxes through couplings so as to drive the wheel assemblies to walk. According to the aerial track pneumatic tire coal transport vehicle, the vibration of the vehicle and the aerial track beam is relatively small, the gradeability of the vehicle is strong, and the maintenance is more convenient.

A maintenance assembly for a wheel assembly of an amusement ride vehicle includes a base portion, a wheel-engaging section extending a first distance from the base portion, and a datum section including a protrusion extending a second distance from the base portion. The wheel-engaging section is configured to contact a wheel surface of the wheel assembly, and the datum section is configured to contact a pad of the wheel assembly. Additionally, the wheel-engaging section is rigidly positioned relative to the datum section, and the second distance is greater than the first distance so that the maintenance assembly provides a constant distance between a surface of the datum section configured to contact the pad and a surface of the wheel-engaging section configured to contact the wheel surface.

The present invention discloses a modular wheel for remanufacturing scrap crane wheels, comprising a modular wheel inner ring, a modular wheel outer ring, a tensioning connection assembly, and a U-groove working sleeve. The center hole of the modular wheel inner ring is connected to the crane axle, the modular wheel inner ring and two modular wheel outer rings are connected via a tensioning connection assembly, and the U-groove working sleeve is mounted on the U-shaped surface of the outer ring of the modular wheel outer ring. The U-groove working sleeve is used to mate with an external track. Compared with the prior art, the present invention facilitates the installation and removal of the axle and the inner hole of the modular wheel inner ring, and the modular wheel outer ring and the working sleeve. The entire wheel assembly does not need to be disassembled for maintenance and wheel replacement. The wheel or working sleeve can be replaced online, significantly reducing maintenance time and production downtime, and significantly improving production efficiency. Furthermore, the use of scrap wheels for reprocessing not only allows for the recycling of scrap crane wheels, but also significantly increases the wheel's service life.

A railway wheel that is capable of suppressing the propagation of cracks is provided. A railway wheel (100) according to the present disclosure includes a hub part (10), a rim part (20) including a tread (21) and a flange (22), and a web part (30). In the railway wheel (100), in an outer layer of the rim part (20) that includes the tread (21), an elastic limit σ0 is 430 MPa or more, an initial kinematic hardening coefficient C is 130 GPa or more, and a kinematic hardening coefficient reduction ratio γ is 400 or less. The initial kinematic hardening coefficient C and the kinematic hardening coefficient reduction ratio γ satisfy Formula (1). [Expression 1] 470≤Cγ1−exp−0.007γ

A rail wheel set for a car which can be moved on a rail of a rail system has a bearing housing with a radial suspension for connecting the rail wheel set to the car, and two running wheels which are rotatably mounted on the bearing housing. Each wheel has a respective rail rolling surface, the shape of which is adapted to the contour of a running surface of the rail, and a respective ground rolling surface. The wheels can roll independently of each other on the running surface of the rail or on the ground. The rail wheel set is secured to a chassis of a car for transporting objects on a rail system.