104results about "Rail-engaging wheels" patented technology

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.

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.

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 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 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%.

The invention provides a guide wheel device for a straddle type monorail train, which comprises a main shaft, a hub rotationally supported on the main shaft through a bearing, and a tire and a safety wheel which are arranged on the hub, and an anti-falling plate for supporting a bearing outer ring when the bearing outer ring falls off is fixedly arranged at the bottom of the main shaft. According to the straddle type monorail train, the anti-falling plate is arranged at the bottom of the main shaft, when the bearing loses efficacy or the hub falls off due to falling of the end cover, the anti-falling plate can vertically support the outer ring of the bearing, so that the hub and an external tire assembly are prevented from falling to a rail, and the running safety of the straddle type monorail train is remarkably improved.

The utility model discloses a track walking wheel assembly and a track cable-stayed submersible pump. The track walking wheel assembly comprises a wheel frame, a wheel shaft, a walking wheel, a bearing, bearing end covers and a sealing pressing plate, the walking wheel is assembled on the wheel shaft through the bearing, the two sides of the walking wheel are fixed through the bearing end covers, the inner sides of the bearing end covers abut against bearing outer rings for axial positioning, and first sealing rings are arranged between the bearing end covers and the walking wheel; a second sealing ring is arranged between the bearing end cover and the wheel axle; a third sealing ring is arranged between the sealing pressing plate and the bearing end cover, and the second sealing ring and the third sealing ring are arranged in series in the axial direction of the wheel axle to jointly form an axial sealing combination for preventing liquid from invading the bearing cavity along the surface of the axle. By means of the triple sealing design, the problem that the bearing is rusted and stuck due to water inflow is solved, smoothness and reliability of movement of the submersible pump on the rail are guaranteed, the service life of equipment is prolonged, and maintenance cost is reduced.

The present disclosure provides a composite powered wheel set, a train, a wheel-rail system and a train control method. The composite powered wheel set comprises two booster wheels and two support wheels mounted on a driving axle. The booster wheels are fixedly mounted on two ends of the driving axle, the support wheels are mounted on the driving axle via bearings, the moving axle is connected to a first transmission device, which is connected to a first power mechanism, and the driving axle is further connected to a train bogie via a connecting device. Booster wheels and booster rails are provided to improve anti-skid performance, so the train will not skid when running on a steep slope or under a heavy traction load. Restrictions on the railway slope, train traction load, and train speed are eliminated to a great extent, and the application scope of the wheel rails is expanded.

This utility model discloses a movable fixing assembly, relating to the field of track technology, which can solve the problem of moving and fixing equipment on a track. The movable fixing assembly includes rollers, a bracket, and a fixing component. The rollers are adapted to the track; the bracket includes a left plate, a connecting plate, and a right plate connected in sequence, with the left and right plates respectively connected to the two ends of the roller's axle; the fixing component includes a first claw, a second claw, and a claw frame; the left wall of the claw frame is rotatably connected to the left plate via a left pivot, and the right wall of the claw frame is rotatably connected to the right plate via a right pivot. A claw hinge shaft connects the front and rear walls of the claw frame. The first and second claws are hinged together via the claw hinge shaft and pass through the inner side of the claw frame. Adjusting bolts are used to clamp or release the first and second claws on the track. This utility model enables flexible movement and stable fixing of equipment on a track.

The invention discloses a rubber driving wheel of a rail operation vehicle, and belongs to the field of transmission control. The invention particularly relates to the driving of rail working vehicles. The rubber driving wheel is characterized in that rubber at the contact part of the rubber driving wheel and a track surface is magnetic rubber with residual magnetism or a rubber matrix containing a magnet. When the rubber wheel is used as a driving wheel of a vehicle on a steel rail, the retarding force for sliding of the contact part of the wheel on the rail surface of the steel rail can be increased by means of magnetic induction between the contact part of the rubber wheel with residual magnetism and the steel rail, so that the wheel applies the same gravity positive pressure to the steel rail, and compared with a normal condition, the wheel can support larger traction force; in other words, the adhesive force coefficient is improved. And the balance weight of the vehicle can be reduced. Especially in the field of tractors, the traction coefficient (the ratio of the traction force to the weight borne by the driving wheels) of the tractor is increased, and the technical and economic significance is obvious.

Embodiments of the present disclosure provide a track apparatus for stackers for a stocker, applicable to the field of handling apparatus for semiconductors. The track apparatus includes an overhead track mounted on a top of an aisle in the stocker and ground tracks mounted on a bottom of the aisle in the stocker and parallel to the overhead track. The overhead track is moveably engaged with a top of a stacker and is configured to provide overhead guide to horizonal movement of the stacker. The ground tracks include two guide tracks and a travelling track arranged between the two guide tracks and parallel to the two guide tracks. The two guide tracks are configured to provide ground guide to the horizonal movement of the stacker, and the travelling track is configured to provide support to the horizonal movement of the stacker. With the overhead track and the ground tracks that adopt new structures and provide support and guide to the horizonal movement of the stacker, stable and high-accuracy operation of the stacker can be ensured.

The application discloses a kind of elastic wheels of rail vehicle, wherein first rubber outer ring, first stiffness plate and first rubber inner ring are sequentially provided between wheel rim and wheel core, second rubber outer ring, second stiffness plate and second rubber inner ring are sequentially provided between wheel rim and pressure ring, and pressure ring is connected with wheel core by fastener.The rubber outer ring, rubber inner ring and stiffness plate of the present application are matched by concave-convex lotus edge structure, which prevents the tangential dislocation rotation between the rubber outer ring and the rubber inner ring.Meanwhile, the stiffness plate made of metal material sandwiched between the rubber outer ring and the rubber inner ring greatly improves the overall circumferential tangential shear strength of the rubber outer ring and the rubber inner ring, avoiding large displacement dislocation caused by rubber elastic deformation and solving the problem of sluggishness of elastic wheel.Meanwhile, the concave-convex structure of lotus leaf edge is arranged on the rubber ring, which greatly reduces the processing procedure and reduces the processing difficulty compared with arranging groove on metal part.

The utility model relates to a rail construction material conveying device. An existing material conveying device is prone to deviation due to the fact that materials are too heavy in the transportation process, and the materials are usually directly stacked and placed and cannot be clamped. The device comprises a base plate and two rails, and further comprises a movable deviation rectifying mechanism and a clamping mechanism. The upper end surface of the track is arc-shaped; the movable deviation rectifying mechanism comprises a connecting piece, a moving assembly and two deviation rectifying assemblies, the connecting piece is arranged at the bottom of the base plate, the moving assembly penetrates through the connecting piece and is slidably arranged on the two rails, and the deviation rectifying assemblies are arranged at the two ends of the moving assembly correspondingly and are slidably connected with the rails; the moving assembly comprises a rotating shaft and two wheels, the rotating shaft penetrates through the connecting piece, the wheels are arranged at the two ends of the rotating shaft respectively and slidably arranged on the track, and the wheels are in a circular truncated cone shape with the outer side diameter smaller than the inner side diameter. The clamping mechanism is arranged at the upper end of the base plate. The device can be prevented from deviating, and materials can be clamped.

The present application relates to the technical field of mine flat car, especially to a wheel pair of mine flat car. The wheel pair of mine flat car comprises a mine wheel with a hollow structure, characterized in that it further comprises a runaway prevention device; the runaway prevention device comprises a mounting frame and a brake assembly, the mounting frame is coaxially installed in the mine wheel; the brake assembly comprises a brake block and an elastic member, one end of the brake block is hinged to the mounting frame, and the hinged axis is parallel to the axis of the mine wheel, the other end of the brake block is elastically connected to the mounting frame through the elastic member, and the elastic member is arranged along the radial direction of the mine wheel. By setting the brake block and the elastic member, when the flat car runs at a high speed or runs away, the centrifugal force is greater than the elastic force of the elastic member, so that the brake block is in close friction with the inner wall of the mine wheel under the action of the centrifugal force, thereby realizing the rapid deceleration of the brake block on the mine wheel.

A rail vehicle, such as a light rail vehicle, can include a wheel unit and a support unit. The wheel unit can define an axis of rotation of the wheel unit. The support unit can be configured to be connected to a rail vehicle structure that defines a vehicle longitudinal direction, a vehicle transverse direction, and a vehicle height direction. The support unit can be configured to connect the wheel unit to the rail vehicle structure such that the wheel unit is rotatable about the axis of rotation. The support unit can also include a primary suspension unit configured to provide resilient support of the rail vehicle structure on the wheel unit at least in the vehicle height direction.

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.

Provided is a railway wheel in which the generation of proeutectoid cementite can be suppressed even if the C content is high. The railway wheel according to the present embodiment has a chemical composition containing, in mass%, 0.80-1.15% of C, 0.45% or less of Si, 0.10-0.85% of Mn, 0.050% or less of P, 0.030% or less of S, 0.120-0.650% of Al, 0.0030-0.0200% of N, 0-0.25% of Cr, and 0-0.12% of V, with the remainder being Fe and impurities, and the amount of proeutectoid cementite in the microstructure of the railway wheel defined by formula (1) being 1.50 pieces / 100 [mu] m or less. The amount of pro-eutectoid cementite (root / 100 [mu] m) = the sum of the number of pro-eutectoid cementite which intersects two diagonals of a square field of view of 200 [mu] m * 200 [mu] m / (5.66 * 100 [mu] m) (1).

The invention relates to a method for tightening a wheel brake disc (3) on a track wheel (2) of a rail vehicle by means of screws (4) received in screw-receiving means (33) of a wheel brake disc (3), with which contact surfaces (35) facing away from a friction belt (31) of the wheel brake disc (3) are pressed against a flat contact surface (24) of the track wheel (2), with the following method steps: a) tightening the screws (4) up to their yield point, and b) turning the screws (4) back by a predetermined angle.

Assembly comprising a bogie (1) for inspection and / or maintenance of an underframe of a railway convoy, said bogie being of the type suitable for moving on a railway having two rails (R1, R2) placed side-by-side and a space (S) therebetween, said bogie comprising a frame (2); a plurality of wheel groups (31, 32, 33, 34), mounted to the frame and movable transversally between a retracted position in which they are out of contact with the respective rail and an extracted position in which they are in rolling contact with the respective rail; at least one transverse motion device (4) operatively connected with the wheel groups of said plurality for transversally moving in retraction and / or extraction the wheel groups of said plurality; one or more auxiliary bearings (7) for overcoming one or more obstacles present on at least one rail (R1, R2) of the railway. The assembly further comprises a rolling guide (8) for the auxiliary bearings (7) and an electronic control system (6).

Wheel assembly, which includes the following: - a main body (3) having a rotatable main body rotation area (34); - an intermediate element (4) with a ring-shaped form that surrounds the main body rotation area (34); - a tire (2) with a ring-shaped form that surrounds the intermediate element (4); - a first elastic body (51) designed to couple the intermediate element (4) and the tire (2) such that the intermediate element (4) is movable with respect to the tire (2) along a first imaginary straight line that is orthogonal to an axis of the intermediate element (4); - a second elastic body (61) designed to couple the intermediate element (4) and the main body rotation area (34) such that the intermediate element (4) is movable with respect to the main body (3) along a second imaginary line which is orthogonal to the axis of the intermediate element (4) and intersects the first imaginary line; and - a vibration damping structural unit (7) attached to the main body (3), wherein the vibration damping structural unit (7) has a weight (71) designed to be rotated in the same direction as the direction of rotation of the main body rotation range (34) at a speed twice that of the main body rotation range (34), and wherein, if a direction along the second imaginary line coincides with a vertical direction, a position of the center of mass (71a) of the weight (71) is located below a position of a rotation centerline of the weight (71).

A wheel (100) includes a hub portion (10), a rim portion (20), and a plate portion (30). The rim portion (20) includes a tread (21) and a rim flange (22). A center (Cr) of the rim portion (20) in an axial direction of the wheel (100) is configured to be closer to the rim flange (22) than a center (Cb) of the hub portion (10) in the axial direction. The plate portion (30) has a straight plate thickness center line (A) in a longitudinal sectional view of the wheel (100). An angle formed by the plate thickness center line (A) and the axial direction is denoted as α, a distance in the axial direction from a side surface (24) of the rim portion (20) to an outer end (Aa) of the plate thickness center line (A) is denoted as Pw, a length of the rim portion (20) in the axial direction is denoted as Wr, and Pw / Wr is denoted as L, the wheel (100) satisfies L ≥ 0.0223α-1.363. The angle α is 90° or less.

The application discloses a wheel type red light connection early warning guide wheel device for a rail flaw detector, which comprises a device main body, the device main body is used for detachable connection with a double-track rail flaw detector, two groups of symmetrical conductive rail running wheels are arranged on the device main body, the two groups of conductive rail running wheels are respectively corresponding to two rails of the double-track rail flaw detector, and the conductive rail running wheels are made of conductive materials. The wheel type red light connection early warning guide wheel device for the rail flaw detector utilizes the original track circuit of a railway, controls the on-off of switches to make the two-side rails short-circuit, triggers a signal system "red light belt", realizes automatic and real-time early warning of an operation position, does not need manual additional protection, and can flexibly control the start and stop of the red light connection function according to operation requirements, and has compact structure, strong adaptability and greatly improved safety and operation efficiency of rail flaw detection operation.

Wheel assembly, which includes the following: - a tire (2) with a ring-shaped form; - a wheel main body (3, 7) having a rotatable area (3b, 7); - an intermediate element (4) which is an element separate from each of the tire (2) and the wheel main body (3, 7); - a first coupling structure unit (5) comprising a first elastic plate (51) configured to couple the tire (2) and the intermediate element (4); - a second coupling structure unit (6) comprising a second elastic plate (61) configured to couple the rotatable area (3b) and the intermediate element (4), - wherein the rotatable area (3b, 7) and the intermediate element (4) are arranged coaxially to the tire (2), - wherein, if a straight line that is orthogonal to an axis of the tire (2) is defined as a first imaginary straight line, the first elastic plate (51) is arranged orthogonally to the first imaginary straight line, - wherein, if a straight line which is orthogonal to the axis of the tire (2) and which differs from the first imaginary straight line is defined as a second imaginary straight line, the second elastic plate (61) is arranged orthogonally to the second imaginary straight line, - wherein the intermediate element (4) can move in the thickness direction of the first elastic plate (51) with respect to the tire (2) by means of an elastic deformation of the first elastic plate (51) and - wherein the wheel main body (3, 7) can move in the thickness direction of the second elastic plate (61) in relation to the intermediate element (4) by means of an elastic deformation of the second elastic plate (61).

The present invention relates to a wheel arrangement for a rail vehicle (101), in particular, a light rail vehicle, comprising a wheel unit (107) and a support unit (108), wherein the wheel unit (107) defines an axis of rotation (107.1) of the wheel unit (107). The support unit (108) is configured to be connected to a rail vehicle structure (104) of the rail vehicle (101) defining a vehicle longitudinal direction, a vehicle transverse direction and a vehicle height direction. The support unit (108) is configured to connect the wheel unit (107) to the rail vehicle structure (104) such that the wheel unit (107) is rotatable about the axis of rotation (107.1). The support unit (108) further comprises a primary suspension unit (105) configured to provide resilient support of the rail vehicle structure (104) on the wheel unit (107) at least in the vehicle height direction. The primary suspension unit (105) has a primary suspension transverse rigidity in a direction parallel to the axis of rotation (107.1), wherein a distribution of the primary suspension transverse rigidity across the primary suspension unit (105), in particular, in a static state of the rail vehicle (101) on a straight level track under a nominal load, defines a tilt axis (107.2) of the wheel unit (107) parallel to the vehicle longitudinal direction. The distribution of the primary suspension transverse rigidity is such that, in the vehicle height direction, the tilt axis (107.2) is located below the axis of rotation (107.1).

The application provides a transition structure and construction method of a large-diameter shield machine, which comprises a circular arc guide table, a starting shaft, a rail for the shield machine body to walk, a rail row rail in a pipe segment, a connection bridge, a plurality of trailers connected to the connection bridge in sequence, a trailer connected to the shield machine body at the first end, a shield machine rear supporting device, a height compensation mechanism, and a support mechanism. The height compensation mechanism is arranged on the walking wheel pair of the trailer group and is used for compensating the vertical height difference between the circular arc guide table rail and the pipe segment rail row rail. The support mechanism is arranged at the bottom of the trailer group and is used for providing auxiliary support for the connection bridge and the trailer group during the height compensation mechanism is in effect. The technical problem of the shield starting initial trailer walking difficulty in the prior art is solved.

The invention relates to a friction ring (3) for a wheel brake disc of a rail vehicle, comprising a friction surface (31) and a back side (32) facing away from the friction surface, from which back side a plurality of cooling webs and fastening bosses (5) extend in a direction perpendicular to the friction surface (31), a first number of cooling webs being designed as circular webs (8), according to the invention, the second part number of cooling webs are designed as T-shaped ribs (6, 7) parallel to the plane of the friction surface (31), which ribs are arranged radially outside and / or inside the fastening boss (5) along an imaginary circular line, the center point of which is the axis of rotation (34) of the friction ring (3). The invention further relates to a wheel brake disc for a rail wheel of a rail vehicle.