94results about "Rails" patented technology

The utility model relates to the technical field of rail transit, in particular to a double-end I-shaped steel type anti-falling guardrail which comprises a guardrail support, a walking rail and an I-shaped steel guardrail body. The I-shaped steel guard rail is clamped at the top of the insulating sleeve boot type elastic cushion block and fastened on the guard rail support through a detachable fastening mechanism, the walking rail is locked on the guard rail support through a locking mechanism, and the portion, making contact with the guard rail support, of the bottom of the walking rail is sleeved with an insulating spacer. The service life is doubled, meanwhile, the structural stability is higher than that of a single working face, meanwhile, the insulating property is high, the requirement for track circuit laying is lowered, the safety of a track circuit is further guaranteed, and therefore cross-signal-area laying can be conveniently conducted.

Transport system (100, 200, 300, 400, 500) for moving loads on a surface, comprising at least one rail track and at least one transport vehicle (50) running on wheels (12, 12A) on the rail track, characterized in that the rail track comprises a solitary rail (10, 312, 314, 412, 414, 512, 514) for receiving the load of the transport vehicle (50), that the transport vehicle (50) comprises at least one front wheel (12) and at least one rear wheel (12A), each bearing a tread (14) with a concave cross-section in the direction of travel one behind the other on the rail (10, 312, 314, 412, 414, 512, 514), and that the transport vehicle (50) further comprises support rollers (52A, 52B) includes, which are arranged on both sides of the front and rear wheels (12, 12A) and run on the ground on both sides of the rail (10, 312, 314, 412, 414, 512, 514).

The invention discloses a railway turnout plate cutting device which comprises a support, a mounting part is movably connected to the support, a laser cutting body is vertically arranged on the mounting part, a sliding frame is arranged on the mounting part, the sliding frame is slidably connected with the mounting part in the vertical direction, and the sliding frame is fixedly connected with the laser cutting body. A first screw rod is vertically arranged on the mounting part, the first screw rod is rotatably connected with the mounting part, two clamping assemblies are arranged on the support, each clamping assembly comprises an upper clamping plate and a lower clamping plate, a second screw rod is rotatably connected to the support, and the second screw rod is vertically arranged on the upper clamping plate and the lower clamping plate in a penetrating mode; the upper clamping plate and / or the lower clamping plate are / is connected with the second screw rods in a matched mode through threads, and a first transmission assembly is arranged between any second screw rod and the first screw rod. The laser cutting device aims at solving the technical problems that under the action of external force, the position of a metal plate is prone to change, and the distance between the laser cutting device and the metal plate cannot be adaptively adjusted according to the thickness of the metal plate.

The embodiment of the utility model provides rail welding equipment for both roads and railways. The rail welding equipment for both roads and railways is characterized in that a loading platform drives the rail welding equipment for both roads and railways to walk on railways or roads through a chassis; the auxiliary protection device covers the outer side of the welding machine, so that the welding machine is prevented from being in direct contact with the ground in the process of hoisting or putting down the welding machine by the hoisting device; meanwhile, when the hoisting device drives the welding machine to transfer, the welding machine is prevented from being in hard contact with other equipment, and the service life of the welding machine is prolonged; the rail lifting device is arranged to lift the steel rail to be in butt joint with the welding machine, when the welding machine conducts welding operation, it is guaranteed that the relative positions of the welding machine and the steel rail are fixed, and the welding effect is improved; one end of the hoisting device is rotationally connected to the frame, the other end of the hoisting device is connected with the welding device, the welding device is hoisted and moved, the workable range of the welding device is expanded, and the equipment applicability is improved.

According to the assemblable embedded track and the construction method thereof, on the basis that it is guaranteed that bolts are connected with pre-embedded sleeves corresponding to sleepers through through holes in a bottom plate, side plates on the two sides of a steel tank move outwards and are longitudinally disconnected at the positions corresponding to the pre-embedded sleeves, so that space is formed, and the inner sides of the disconnected positions of the side plates are connected through insulating plates; the insulating plates are arranged on the inner sides of the side plates on the two sides, the side plates on the two sides of the steel tank move outwards, namely, the insulating plates are additionally arranged between the steel tank and the steel rail, the clearance size in the steel tank is increased, and the steel tank is prevented from being damaged. The distance between the steel tank and the steel rail is increased; even if a large construction error occurs and the steel rail is in contact with the insulating plate, the minimum distance between the steel rail and the steel tank can still be forcibly guaranteed to be the thickness gap of the insulating plate, the insulativity of the steel rail and the steel tank is guaranteed, and the sparking risk is reduced.

The invention relates to a mould (1) for aluminothermic welding of two rails (30), said mould (1) comprising at least two side parts (2A, 2B) made of refractory material, configured to be mounted temporarily opposite one another on either side of the ends of the rails (30) to be welded so as to define a moulding cavity between said rail ends (30), each side part (2A, 2B) comprising at least one filling pipe (10A, 10B) configured to guide molten metal from the upper portion of the mould to a zone of the moulding cavity located at the base (33) of a rail, characterised in that each filling pipe (10A, 10B) has a section (110, 120) which is perpendicular to a flow axis of the molten metal in the pipe (10A, 10B) and narrows so as to progressively reduce the width of said section (110, 120) in a direction opposite a mean longitudinal plane (P) common to the two rails to be welded.

The invention discloses a photovoltaic panel rail laying fixing piece and a working method. The photovoltaic panel rail laying fixing piece comprises a screw rod, the screw rod is sleeved with a shaft sleeve, locking devices are arranged on the two sides of the shaft sleeve, a fixing device is arranged on the shaft sleeve, and one end of the screw rod is fixedly connected with a U-shaped clamp. The U-shaped clamp can be directly clamped at the bottom of the rail, extra punching or transformation of the rail is not needed, the original structure of the rail is prevented from being damaged, and the influence of construction on railway operation is reduced; meanwhile, the fixing device can be accurately attached to the corners of the photovoltaic panel, and the problem that a traditional fixing piece is difficult to adapt to the special installation environment of the rail is solved. The screw rod can axially move along the shaft sleeve and is matched with the tightness adjustment of the locking device, so that the positions of the U-shaped clamp and the fixing device can be flexibly and finely adjusted, the levelness and the plane position of the photovoltaic panel can be easily calibrated, the problems of inclination, uneven stress and the like of the photovoltaic panel caused by installation errors are effectively avoided, and the long-term stable operation of the photovoltaic panel is ensured.

An oxygen and acetylene bottle body heat tracing device for an air pressure rail welding vehicle in a low-temperature environment comprises a control system, each oxygen and acetylene bottle body is provided with a heat exchange water jacket, and each heat exchange water jacket is provided with an inductive switch; an inlet of each heat exchange water jacket is communicated with a hot water distributor through a heat tracing water branch pipe of the heat exchange water jacket, each heat tracing water branch pipe is provided with an electromagnetic valve, an outlet of the water tank is communicated with the hot water distributor through a circulating pump, and an outlet of each heat exchange water jacket is communicated with an inlet of the water tank through a heat tracing water return main pipe. The water tank is filled with anti-freezing liquid and is heated by the heater; temperature sensors are arranged on the heat exchange water jacket, the water tank and in the field environment; and the temperature sensors, the inductive switch, the electromagnetic valve and the heater are electrically connected with the control system. When the external temperature is lower than 0 DEG C, the temperature of the oxygen acetylene tank is kept at about 20 DEG C during welding operation, acetylene can be fully gasified, oxygen and acetylene airflow meeting the pressure and flow requirements is provided, and the welding quality is guaranteed.

The utility model discloses a crossing track which solves the technical problem that in the prior art, temporary crossing transportation of large vehicle equipment in the factory entering installation stage is limited. The crossing track is erected between a span A and a span B and comprises a base, a plurality of positioning pieces, a track body and a plurality of sets of connecting assemblies, the base comprises a first base body and a second base body, and the first base body and the second base body are parallel to each other and are arranged in the length direction of the span A or the length direction of the span B at an angle; the plurality of positioning pieces are arranged on the first seat body and the second seat body; the rails comprise a first rail and a second rail; one part of the connecting assembly is connected with the first rail and the first seat body so as to fix the first rail on the first seat body; and the other part of the connecting assembly is connected with the second rail and the second seat body so as to fix the second rail on the second seat body. Therefore, the span crossing track is arranged between the span A and the span B, the installation process is convenient and fast, the cost of secondary reshipment of the vehicle equipment is reduced, and the transportation efficiency of the large vehicle equipment is improved.

The utility model discloses a distance-adjustable railway gauge pull rod which comprises a storage shell, the storage shell is connected with a storage piece, the storage piece comprises an adjusting piece installed on the storage shell, the adjusting piece comprises a two-way screw rotationally connected along the X axis, a worm and gear assembly is installed in the middle of the two-way screw, and the worm and gear assembly is connected with the storage shell. The middle end of the top of the storage shell is rotationally connected with a hand wheel used for driving the worm and gear assembly. According to the distance-adjustable railway gauge pull rod, the two-way screw rod, the worm and gear assembly, the hand wheel, the positioning pin, the sliding rod, the two sets of moving blocks, the indicating block and tempered glass are matched with one another, the distance between multiple sets of insulating pull rods can be conveniently adjusted, meanwhile, the adjusting distance can be conveniently read out in time, after adjustment is completed, the adjusting end can be conveniently locked in time, and then the adjusting precision is improved; and the adjusting end is prevented from being loosened to influence the railway gauge adjustment.

The application discloses a post-welding heat treatment method for dissimilar steel rail in field low-temperature construction environment, which comprises five stages: the surface temperature of the rail joint formed by welding is 700-900 DEG C, the rail joint is naturally cooled in the field low-temperature construction environment, the surface temperature of the rail joint is reduced to 400-450 DEG C, the surface temperature of the rail joint is reduced to 320-380 DEG C under the second cooling speed, the rail joint is heated in the whole section in the form of heat compensation, the surface of the rail joint is heated to 850-890 DEG C, the rail joint is cooled to 350-380 DEG C under the fourth cooling speed, and the rail joint is cooled to 180-220 DEG C under the fifth cooling speed. The application can improve the tread hardness of the rail reduced due to welding, avoid the abnormal martensite structure generated in the process of welding and post-welding heat treatment, improve the impact toughness of the rail joint, and ensure the service performance of the dissimilar rail joint and the railway operation safety.

A method for brazing an electrically conducting connecting piece, for example a cable shoe, of an electrically conducting material to a workpiece of electrically conducting material, by means of a temperature controlled brazing process in which the heat necessary for brazing is generated by striking an electric arc between a carbon electrode, and the electrically conducting connecting piece, where the voltage and current is electronically controlled by control electronics to achieve a temperature development to result in a martensite free brazing, and wherein the DC voltage applied is using the carbon electrode as the negative pole, and using the electrically conducting connecting piece as the positive pole, and wherein the carbon electrode is having a tapering, bevelled, or pointy end at the end facing the electric arc.

Rail profile system (100), in particular for a traveling crane or bridge crane, comprising a rail profile (110), wherein the rail profile (110) extends in a longitudinal direction (112) and is designed for placement on a support (102), and at least one connecting element (122), wherein the connecting element (122) is arranged laterally with respect to the longitudinal direction (112) next to the rail profile (110), wherein the connecting element (122) is welded to the rail profile (110) and wherein the connecting element (122) is designed for connection to the support (102), wherein the connecting element (122) has a waist (144) and / or at least one recess (146).

This utility model relates to a track gauge adjustment device for a turnout switching section. The device includes a left rod, a right rod, a middle sleeve, a pin, a middle nut, a side nut, and a shrinking component. The left and right rods are respectively inserted into the middle sleeve and connected to it via the pin. The right end of the left rod has an external thread section; the external thread section is threaded into the middle nut; the middle nut engages with the middle sleeve. Both the left and right rods have a groove A at their outer ends corresponding to the inner edge of the lower flange of the guide rail. Both the left and right rods have a lead screw extending outwards from their lower sides; the lead screw passes through the shrinking component and engages with the side nut threadedly. The shrinking component has a groove B corresponding to the inner edge of the lower flange of the guide rail. This utility model adjusts the small track gauge at the turnout switching section by tightening the middle nut and adjusts the large track gauge by tightening the side nut. The force applied to the guide rail at the switching section will not exceed the guide rail's bearing capacity, ensuring normal train operation.

The motion mechanism of the iron-rail railway iron-wheel vehicle of the present invention comprises a conventional steel rail, one or two auxiliary rails, a conventional vehicle, and a derailment prevention claw on the vehicle. The derailment prevention claw embraces the auxiliary rail, or the auxiliary rail embraces the derailment prevention claw to form a non-derailing structure, and the vehicle will not derail unless the rail and the vehicle are destroyed in advance. In addition, the derailment prevention claw is replaced with or added to 1) horizontal guide wheels, horizontal driving wheels, horizontal brake wheels, 2) auxiliary rail brake blocks, 3) auxiliary rail brake blocks and buffer wheels, 4) linear eddy current brake assemblies, and 5) linear motor drive and brake assemblies, so that the vehicle can achieve performance such as rapid acceleration, rapid deceleration, steep uphill and downhill, and sharp curve passing. The shape of the steel wheel tread is improved, snake motion is eliminated, the limit speed of the railway vehicle is increased, and the railroad vehicle can smoothly pass through switches, diamond crossings, and railroad crossings, and the temperature stress of the rail is reduced. The present invention is suitable for high-speed passenger transportation and heavy cargo transportation.

The invention relates to the technical field of rail traffic, and aims to solve the problems that an existing fully-wrapped steel rail track structure is difficult to adjust geometric shapes and positions such as track gauge and track direction in the operation process, is difficult to maintain, can only be maintained in a track changing mode, spans a skylight in maintenance time, and is low in efficiency and high in cost. The invention provides a groove type track structure with separated functions and a construction method and a maintenance method thereof. According to the groove type track structure, the blocking table is detachable, the position is easy to adjust, therefore, the positions of the steel rail mounting groove and the steel rail can be adjusted, and the track gauge and the track direction can be adjusted; through cooperation of the adjusting block and the blocking table, design of the matching hole in the adjusting block and matching connection of the matching hole and the fixing hole through the fastener, accurate adjustment of the track gauge and the track direction can be achieved, the adjusting block matched with the adjustment amount can be replaced, then the blocking table is moved, the matching hole of the replaced adjusting block is aligned with the unit plate fixing hole, and the fastener is reinstalled. The invention has the advantages of simple maintenance, short maintenance time, high efficiency and low cost.

A rail fastening system (10) comprises a base plate (12) configured to sit on a support (14) and having a first recess 16 for receiving a length of a rail (18). The system (10) also includes a plurality of spring clips (20i) and (20t) arranged to clamp the base plate (12) between the rail (18) and the support (14); and in doing so fasten the rail (18) to the support (14). A resilient rail pad (21) may be placed in the recess (16) prior to the recess receiving the rail (18), so that the rail (18) sits on top of the rail pad (21). The plate (12) is not secured to the support before application of the clips. The clips are applied by pushing them over the base plate in direction perpendicular to the extent of the rail.

The invention discloses a sleeper for mounting an auxiliary rail, and relates to the field of railway track engineering, the sleeper comprises a sleeper body and two rail bearing tables located on the sleeper body, and stock rail mounting parts are arranged on the rail bearing tables; the two auxiliary rail mounting parts are positioned between the two rail bearing tables; and the stock rail mounting part and the auxiliary rail mounting part are both used for mounting steel rails. The sleeper for installing the auxiliary rail is provided to solve the problems that in the prior art, a rail frame is limited in rigidity, large in derailing risk, insufficient in adaptability and the like, and the purposes that the rail structure performance is improved, driving safety is guaranteed, and meanwhile an existing production process and maintenance operation are compatible are achieved.

According to the elastic unit and the steel rail fastener, the elastic unit is provided with the lower frame body, the upper frame body and the elastic body arranged in the lower frame body, the lower frame body is matched with the positioning hole of the positioning component and is arranged in the positioning hole, and the upper frame body and the lower frame body are embedded in the positioning hole in a sliding mode, so that the whole elastic unit can be positioned by the positioning hole; the elastic unit is only elastically stretched out and drawn back in the vertical direction, is well positioned and limited in the transverse and longitudinal directions, and is not prone to position deviation or torsional deformation, so that the steel rail loaded on the elastic unit is more stable, particularly, the torsion of the steel rail can be effectively reduced, and the loss of the steel rail is relieved. Moreover, as the elastic unit can be arranged by utilizing the height difference between the positioning component and the steel rail and the depth of the positioning hole, compared with an elastic base plate in a traditional fastener, the thickness of the elastic unit is obviously increased, correspondingly, the rigidity is greatly reduced, a better vibration reduction effect can be achieved, and the fastener can be suitable for scenes with high vibration reduction requirements.

The utility model relates to a telescopic track walking structure, and belongs to the technical field of track walking, the telescopic track walking structure comprises a telescopic track, the telescopic track comprises a first track and a second track which are in sliding telescopic connection, the first track is provided with a first supporting surface, and the second track is provided with a second supporting surface; the wheels comprise a first rolling wheel and a second rolling wheel which are coaxially arranged, the first rolling wheel is used for walking on the first supporting face, the second rolling wheel is used for walking on the second supporting face, and the radius difference between the second rolling wheel and the first rolling wheel is equal to the height difference between the first supporting face and the second supporting face. Therefore, when the wheels travel from the first track to the second track, the first roller is separated from the first supporting surface, meanwhile, the second supporting surface continuously supports the second roller to travel, and the axes of the wheels can be always positioned on the same plane, so that continuous and shake-free switching travel of different tracks is realized, and the hidden danger of bumping and shaking of the wheels is effectively solved.

To provide a track short-circuit device capable of surely short-circuiting between right and left rails of a track and coping with automation.SOLUTION: This track short-circuiting device 20 short-circuits right and left rails 10 of a track. The track short-circuit device 20 includes a traveling vehicle, a fixing part 30, and a track short-circuit unit 31. The traveling vehicle travels on a rail 10. The fixing parts 30 are arranged on both right and left sides of the traveling vehicle, and detachably fixed to the rail 10. The track short-circuiting devices 31 are arranged on both right and left sides of the traveling vehicle, and can bring a contact part 50 into contact with a head top surface 14 of the rail 10 to which the fixing part 30 is fixed, and short-circuit the right and left rails 10 by the contact.SELECTED DRAWING: Figure 4

This utility model discloses a high-strength, high-conductivity aluminum alloy guide rail for rail transit, including a rail with a dispersing inclined surface on one side and side support plates on both sides. A positioning mechanism for positioning the side support plates is provided between the side support plates and the rail. A connecting groove is formed at one end of the rail, and a connecting rod is provided within the connecting groove. A connecting mechanism for connecting and buffering adjacent rails is provided at the end of the rail away from the connecting groove. A sliding groove is formed on one side of the rail, and a support mechanism for installing and supporting the rail is provided within the sliding groove. This utility model achieves connection and buffering between the ends of adjacent rails through the sliding connection of the connecting frame and the connecting rod within the connecting groove, combined with a connecting spring. The dispersing pressure from the dispersing inclined surface prevents deformation caused by contact compression at the rail ends.

The utility model relates to the technical field of steel rail welding appliances, and discloses a rail adjusting and aligning device suitable for long rail welding in a metro section, which comprises a tool main frame, two slideways are arranged at the top end of the tool main frame, a first vertical adjusting bolt is in threaded connection with the inner wall of the tool main frame, and a second vertical adjusting bolt is arranged at the top end of the tool main frame. The right side of the tool main frame is in threaded connection with a second vertical adjusting bolt, the top end of a new rail sliding plate is slidably connected with two new rail buckle plates, the inner wall of the new rail sliding plate is in threaded connection with a plurality of new rail fixing bolts, the top ends of the new rail buckle plates are in threaded connection with transverse adjusting bolts, and an insulation assembly is arranged on the left side of the tool main frame. The new rail sliding plate is installed at the top end of the tool main frame, the transverse position of the new rail is changed by rotating the two transverse adjusting bolts, the height and the deflection angle of the rail end of the new rail are changed by rotating the first vertical adjusting bolt and the second vertical adjusting bolt, and the effect of facilitating alignment of the rail end of the new rail is achieved.

A welded rail according to an aspect of the present invention includes: a plurality of rail portions having a head portion and a web portion and having a height h; and a welded joint portion that joins the rail portions together, in which the rail portion has a predetermined chemical composition, a HAZ width of the welded joint portion is 60 mm or less, in a region of 0 to (⅔)×h from a head top portion outer surface in a cross section of the welded joint portion which is parallel to a longitudinal direction and an up-down direction of the welded rail and passes through a center of the welded joint portion and of ±5 mm in the longitudinal direction from a welding center, an area ratio of a martensite structure is 0.0006% or more and 0.1000% or less, and in the region, the number of martensite structures having a grain size of 20 to 200 μm is 3 to 80.

Apparatuses configured to be deployed from mobile welding repair vehicles for the repair of railroad trackwork allow a welding system to be stored and deployed from the mobile welding repair vehicles. The apparatuses deploy from the vehicles on a slide system and are supported by one or more legs, the system having 180-degree or greater rotation for full reach of railroad trackwork for welding repair thereof. Methods of using the same are further provided.

The invention provides a mantle line turnout mechanism and a rhombic cross turnout system. The casing line turnout mechanism comprises an obtuse frog, a first point rail, a first guide rail and a first inner guard rail. The obtuse frog includes a first wing rail extending in a first direction, and a second wing rail extending from a bent portion of the first wing rail in a second direction forming an included angle with the first direction. The first point rail is arranged on one side of the first wing rail and provided with a first tip part arranged at an interval with the bent part, and the first point rail extends in the extending direction of the second wing rail. The first guide rail is arranged on the side, away from the first wing rail, of the first point rail and is parallel to the second wing rail. The first inner guard rail is arranged on the inner side of the first guide rail, is higher than the first guide rail and is constructed to block the inner side of a first wheel flange of the first wheel pair in the process that the first wheel pair runs in the area where the first tip portion is located so that a gap can be formed between the outer side of a second wheel flange of the first wheel pair and the working edge of the first tip portion.

The application discloses a mobile rail welding device and a welding method thereof, and relates to the technical field of rail welding devices.The mobile rail welding device comprises rails and air pressure welding devices installed on the rails.The air pressure welding devices comprise two groups of device bodies installed on the outer walls of the rails, and the interiors of the device bodies are provided with oxygen cavities and acetylene cavities.The oxygen cavities and the acetylene cavities are distributed from top to bottom, and the outer walls of the device bodies are provided with electric control ignition components which are in communication with the oxygen cavities and the acetylene cavities.The bottom ends of the electric control ignition components are provided with fire outlets with downward openings.The outer walls of one group of the device bodies are provided with hydraulic cylinders whose output ends are connected to the outer walls of the second group of the device bodies.The cutting assembly and the polishing assembly are arranged, the air pressure welding devices do not need to be disassembled and assembled, the operation steps are reduced, the burden of workers is reduced, and the working efficiency of the air pressure welding devices and the welding progress of the rails as a whole are improved.