251results 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.

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.

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.

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 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%.

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.

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

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.

The invention discloses a coupling independent rotating wheel set and a machining method thereof, and relates to the technical field of vehicle engineering. The wheel pair comprises an axle and two wheels; coupling cavities are formed between the wheels and the axle, friction couplers and pressing rings are sequentially arranged in the coupling cavities in the axial direction in the direction away from the center of the axle, the friction couplers are connected to the axle and the corresponding wheels, and the pressing rings axially press or loosen the friction couplers and adjust friction force provided by the friction couplers so that the axle and the wheels can be coupled or decoupled. A conical guide face facing the corresponding wheel is fixed to the axle, the end, axially close to the friction coupler, of the guide face is a small-diameter end, the guide face is sleeved with the pressing ring, and the pressing ring can elastically deform in the radial direction and is in sliding fit with the guide face. According to the wheel set, the elastic pressing ring is automatically driven to slide and deform on the guide face by means of the relation between the vehicle speed and the centrifugal force, so that the pressing degree of the pressing ring on the friction coupler is adjusted, the coupling state is switched, and the switching timeliness can be improved.

The invention relates to a vibration absorber (1, 1') for resonance vibrations of rotating bodies, in particular rail wheels, having a plurality of vibratory tongue plates (4, 4') which are separated from one another by intermediate layers (5, 5') of damping material, are rigidly connected to the rotating body at at least one point and are coupled to the rotating body over a large area in the remaining region, wherein the individual tongue plates (4, 4') and the individual intermediate layers (5, 5') of damping material are coordinated with one another in such a way that the tongue plates (4, 4') vibrate at the resonance frequency, to be damped, of the rotating body and the individual tongue plates (4, 4') vibrate such that they compress and relax the damping material of the intermediate layers (5, 5'). In order to enable the vibration properties and damping properties to be set flexibly while ensuring simple manufacturing and reliable attachment of the damping elements, it is proposed that at least one of the tongue plates (4, 4') has a through opening (9, 9') through which the two adjacent intermediate layers (5, 5') of damping material are connected to one another to form a single-piece damping element.

The utility model discloses a tool for rapid sliding of a TBM and a shield. The tool comprises a supporting plate, a bracket, a first sliding rail, a roller carrier, rollers and a second sliding rail. A bracket is arranged on the supporting plate, a first sliding rail is arranged on the bracket, a roller frame is embedded in the supporting plate, a roller is arranged on the roller frame, and the roller is connected to a second sliding rail in a rolling mode; at least two rows of rollers are arranged in the width direction of the supporting plate, and at least three rows of rollers are arranged in the length direction of the supporting plate; the two brackets are symmetrically arranged in the length direction of the supporting plate. According to the device, the TBM or the shield main machine part continues to be assembled and welded on the starting bracket in a fixed-point positioning mode, after assembling and welding are completed, a storage battery locomotive or a thrust oil cylinder is adopted for pushing the starting bracket and the TBM or the shield main machine part to start in a stepping mode, sliding friction is changed into rolling friction of the rolling wheels, the starting stepping construction efficiency of the TBM or the shield machine is improved, and the construction period is shortened. And the whole supporting plate is used for supporting the equipment, so that the risk of manual operation is reduced.

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.

A railway wheel that is capable of suppressing the propagation of cracks is provided. A railway wheel according to the present disclosure includes a hub part, a rim part including a tread and a flange, and a web part. In the railway wheel, in an outer layer of the rim part that includes the tread, 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≤Cγ⁢{1-exp⁡(-0.007⁢γ)}(1)

The utility model relates to the technical field of subway wheel auxiliary tools, in particular to a noise reduction piece for a subway wheel and a wheel noise reduction installation assembly. The noise reduction piece comprises a fan-shaped alloy plate and an auxiliary alloy plate, the fan-shaped alloy plate is provided with a bolt hole used for being connected with a subway wheel and a first riveting hole used for being connected with the fan-shaped alloy plate or the auxiliary alloy plate, the auxiliary alloy plate is fan-shaped, the central angle of the auxiliary alloy plate is the same as that of the fan-shaped alloy plate, and the auxiliary alloy plate is provided with a second riveting hole. The auxiliary alloy plate is fastened to the face, close to the subway wheel, of the fan-shaped alloy plate. The multiple sets of noise reduction pieces are evenly distributed on the surface of the subway wheel to jointly form a noise reduction installation assembly. The noise reduction sheet is simple in structure and convenient to process and install; the fan-shaped alloy plates and the auxiliary alloy plates can be freely combined, so that the flexibility is higher during use; the noise reduction sheet is light in weight; the noise reduction effect can reach more than 10 decibels, and the noise reduction effect is good.

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.