118results about "Rail switches" patented technology

This invention relates to the field of rail manufacturing technology, specifically disclosing a turnout rail with uniform hardness distribution on both sides of the rail head and its manufacturing method. The manufacturing method includes: online heat treatment of the rolled rail, which includes: an accelerated cooling stage: when the temperature of the rail top surface of the rolled rail is between 720 and 840°C, the rail top surface, the long leg side of the rail head, and the short leg side of the rail head are accelerated to 460 to 520°C, wherein the cooling rate of the rail top surface is 1.5 to 3.0°C / s, the cooling rate of the long leg side of the rail head is 2.0 to 3.0°C / s, the cooling rate of the short leg side of the rail head is 2.5 to 3.5°C / s, and the cooling rate difference between the short leg side and the long leg side of the rail head is 0.3 to 0.7°C / s; and an air cooling stage: the rail cooled in the accelerated cooling stage is air cooled to room temperature. This invention can produce turnout rails with uniform hardness distribution on both sides of the rail head, thereby improving the stability of turnout rails during service.

The utility model belongs to the technical field of railway turnout coupler locks, and particularly relates to a closely-attached coupler lock for turnout operation and maintenance, which comprises a closely-attached hook head and a movable hook head. The movable hook head and the close-fitting hook head are in sliding fit in the transverse direction, and the close-fitting hook head is used for buckling a switch rail; the movable hook head is used for buckling the stock rail, and when the movable hook head slides towards the close-attaching hook head, the switch rail can be tightly attached to the stock rail. The utility model has the advantage of preventing the closely attached hook head and the movable hook head from scratching the switch rail and the stock rail.

Described are a method for retrofitting, controlling and monitoring and for the energy management of existing switch-heating systems for selectively heating switches for a rail-bound transport system, and a retrofit device (1) for an existing switch-heating system for controlling and monitoring and for the energy management of switch-heating means, whereby energy for heating the rails is saved, functional reliability is increased through suitable prioritized heating of exposed parts, and good load management is made possible. This is achieved by virtue of a plurality of switch-heating devices (3, 3') being installed at each switch, wherein each switch-heating device (3, 3') has a heating element (4), a local control unit (5) and a temperature sensor (6, 6') connected to the local control unit (5), wherein each local control unit (5) is connected via a bus line (8) and / or radio connection to a central control device (7) that comprises a microprocessor (9), and wherein the central control device (7) is installed in addition to an existing controller (11).

The present application belongs to a kind of automatic oil injection lubrication system and method based on controllable electric push rod, it can share line with turnout gap monitoring system equipment, compatible system software, also can work independently into system, system can be intelligent timing or manual remote control for turnout outer locking device to carry out oil injection lubrication, meet the demand of instant oil lubrication, realize intelligent control, keep the good lubrication state of turnout outer locking device hook lock assembly, reduce and avoid the mechanical failure of turnout outer locking caused by poor lubrication, improve the reliability of switch, can control injection frequency, injection volume according to the degree of influence of turnout conversion frequency at different positions in the field, weather conditions such as sand, rain, snow, sunlight, environmental temperature and humidity changes on turnout;Oil injection system can be used without manual monitoring of oil quantity in oil tank within the cycle, and alarm can be given when oil quantity reaches the lower limit value set by the system.

In adhesive crossings used in railway switches, the aim is to obtain a structure that strengthens the joint between the long and short nose rail sections constituting the nose rail, thereby improving durability. [Solution] In an adhesive crossing equipped with a nose rail formed by joining a long nose rail section 11 and a short nose rail section 12, the long nose rail section 11 and the short nose rail section 12 use special rails having a thickness that does not create a recess on the stomach side of the contact surface, the joining surface F of the long nose rail section 11 and the short nose rail section 12 is made into a continuous surface from the bottom to the top, and adhesive is applied to the joining surface F to bond them together. Furthermore, if necessary, bolt holes 70 are drilled between the long nose rail section 11 or the short nose rail section 12 and a splice material 50 placed on the outside, and bolts 81 are inserted through the bolt holes 70 and tightened with nuts 91 to apply pressure to the adhesive-coated joining surface F and firmly bond them together.

This invention provides a structure for improving the vibration reduction performance of fixed frog turnouts, belonging to the field of track technology. It includes a wing rail and a frog vibration-damping metal component. A spacer is provided between the wing rails, and the frog vibration-damping metal component is located between the wing rails. Both sides of the frog vibration-damping metal component have outward protrusions. Multiple sets of limiting blocks are provided on the spacer. The outer side of the outward protrusions is consistent with the arc surface of one side of the wing rail, and one end of each set of limiting blocks is connected to the bottom of the outward protrusion. This invention solves the technical problem of upward force generated at both ends of the vibration-damping device under train load, leading to upward displacement and adversely affecting the wheel flanges. It achieves the technical effect of limiting the upward displacement of the vibration-damping device, improving system stability, and not affecting the compression deformation of the elastic material and the vibration reduction performance.

A rail system comprising: a first beam and a second beam each comprising a respective upper surface configured to provide a track, a respective pair of sidewalls extending downwards from the respective upper surface and defining a lateral extent of the respective beam, a respective cut-out extending through the respective pair of sidewalls defining a respective cut-out volume extending through the lateral extent of the respective beam and wherein the first beam and the second beam are arranged perpendicular to one another, with the first beam uppermost and the second beam underneath, and the cut-outs of both beams aligned, such that the first beam and the second beam interlock and the first upper surface and second upper surface lie in a single plane, and wherein the rail system comprises a locking arrangement configured to lock the beams together.

The invention provides a split slide plate, which relates to the technical field of rail transit, is used for bearing a stock rail and a switch rail and allowing the switch rail to slide along a first direction to get close to or get away from the stock rail, and comprises a bottom plate, a bedplate and an iron seat, and a first mounting groove and a second mounting groove are formed in the bottom plate at an interval along the length direction. The bedplate is detachably connected with the bottom plate through the first mounting groove and is suitable for bearing the switch rail. The iron base is detachably connected with the bottom plate through the second mounting groove, the stock rail is located between the platen and the iron base and limited by the platen and the iron base to move in the length direction, and the platen and the iron base are constructed to be inserted into the first mounting groove and the second mounting groove correspondingly to be in interference fit with the bottom plate after responding to the fact that the bottom plate is heated.

This invention discloses a temporary superimposed turnout and its construction method for non-stop tramway retrofitting. When a break exists on one track of a double-track line, the broken section is merged into the other track. Temporary superimposed turnouts are installed in pairs on the existing track before and after the break. Each temporary superimposed turnout includes a main track section and a branch track section. Each main track section overlaps with the other track without a break, corresponding to either the break or the break, and includes a standard guide rail and two overlapping sections of the main track. Each branch track section includes a branch track overlapping section, a transition section, and a standard guide rail. Each branch track overlapping section overlaps with the track with the break. Each transition section connects to the corresponding main track section. The intersection of the standard guide rails of the main track section and the branch track section forms a crossing section. This invention saves on engineering and social organization costs, has minimal social impact, and the temporary turnouts are reusable, easy to install, and low-cost.

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 invention relates to the technical field of steel rail production, and particularly discloses a turnout steel rail with uniformly distributed hardness of a rail waist central section and a production method of the turnout steel rail. The production method comprises the steps that on-line heat treatment is conducted on the rolled steel rail, and the on-line heat treatment comprises the accelerated cooling stage, specifically, when the temperature of the rail top face of the rolled steel rail ranges from 700 DEG C to 800 DEG C, the long leg side rail web and the short leg side rail web of the rolled steel rail are accelerated to be cooled to 490 DEG C to 570 DEG C, the accelerated cooling speed of the short leg side rail waist is higher than that of the long leg side rail waist; and an air cooling stage, wherein the steel rail cooled in the accelerated cooling stage is air-cooled to the room temperature. The production method can be used for producing the turnout steel rail with the hardness of the central section of the rail web uniformly distributed, and the stability of the turnout steel rail in the service process is improved.

The invention relates to an unmanned turnout railway traffic system, which is characterized in that a three-dimensional chord hinge hook is hinged and straddled on a center shaft of a rotating center frame on a wheel axle frame, and a differential motion flat tread wheel axle forms good bending adaptability motion through linkage of double pins and double grooved wheels; a locomotive head on a fixed-fork inclined-end caking is positioned through a chord hinge hook self-guided selection line track tail locomotive guard, when a train stops, a rigid hook can be unlocked to detect and maintain individual vehicles, lines can be changed, a window period can be flexibly provided to update railway facilities, particularly, a comprehensive caking dispatching yard is practical and compact, operation management has more options, and the service life of the dispatching yard is prolonged. And strong centrifugal force shaking and vibration noise can be eliminated.

The utility model belongs to the technical field of switch sleepers, and discloses a high-durability switch sleeper which comprises a steel switch sleeper body, steel switch rail bodies are symmetrically and fixedly arranged on the upper surface of the steel switch sleeper body, forking pieces are symmetrically arranged in the steel switch rail bodies, grooves are symmetrically formed in the steel switch rail bodies, forking grooves are formed in the forking pieces and a support of the steel switch rail bodies, and the forking pieces and the support of the steel switch rail bodies are connected through the forking grooves. A plurality of connecting blocks are symmetrically and fixedly arranged on the lower surfaces of the linear rail bodies, the lower surfaces of the connecting blocks are movably attached to the corresponding linear rail bodies, bent steel columns are fixedly arranged on the outer sides of the connecting blocks, fixing plates are arranged on the outer surfaces of the bent steel columns in a clamped mode, and clamping grooves are symmetrically formed in the upper surfaces of the linear rail bodies. According to the scheme, the steel switch sleeper body and the steel switch rail body are adopted, the strength is high, the toughness is good, the service life is long, connection is stable, and the rail stability and durability are good; the linear rail body and the like are detachable, installation, adjustment, maintenance and replacement are convenient, flexible combination can be achieved through modular design, and the construction efficiency and adaptability are improved.

The application relates to the technical field of railway engineering machinery, and provides a turnout replacement device and a turnout replacement method. The turnout replacement device comprises a flat car and a gantry crane, the gantry crane comprises a telescopic arm and a telescopic column fixed at one end in the transverse direction, the telescopic column can be telescopically extended in the vertical direction; a fixed column is fixed at the lower end of the flat car, and the upper end of the fixed column is hinged at the other end of the telescopic arm, so that the telescopic arm and the telescopic column can rotate as a whole around the fixed column; and the fixed column is fixed on the flat car. The application solves the technical problem of complicated use and storage processes of the gantry crane of the traditional turnout replacement device.

The application discloses a narrow-gauge prestressed concrete sleeper structure and relates to the technical field of railway sleepers. The structure comprises a main body made of concrete and used for bearing a basic rail and a bearing plate embedded in the main body. A support and a locking mechanism are arranged on the bearing plate. The support is slidingly connected to the bearing plate and used for supporting a point rail. The locking mechanism has a locking state of locking the support and an unlocking state of unlocking the support. When the point rail is to be changed, the locking mechanism is switched to the unlocking state. After the point rail is changed, the locking mechanism is switched to the locking state. The narrow-gauge prestressed concrete sleeper structure can switch the locking mechanism to the unlocking state in the process of changing the point rail, so that the point rail can drive the support to slide on the bearing plate until the changing of the point rail is completed. After the changing of the point rail is completed, the locking mechanism is switched to the locking state to lock and support the point rail, thereby improving the stability of the point rail.

The utility model relates to an intelligent turnout anti-attrition device in the technical field of turnout anti-attrition, which comprises a control box, a material conveying pipe and a coating plate, one end of the control box is provided with the material conveying pipe in a penetrating manner, the material conveying pipe is connected with the coating plate, and the bottom of the coating plate is connected with an anti-loose fastener through a bolt. According to the utility model, the inductive switch is matched with the coating plate, so that the macromolecular nano wear-resistant paste is automatically coated when a train passes, the friction coefficient of a wheel rail is effectively reduced, and the wear is reduced. A low-power-consumption control technology is adopted, train signals are detected through a vibration sensor, a control circuit is awakened, coating operation is automatically completed, and the operation frequency and the like are set through a platform. Due to the portable design, the device is flexible to use, 24-hour unattended operation can be achieved, safety is improved, and meanwhile it is guaranteed that the anti-attrition effect is optimized.

The invention discloses a ballastless track turnout fastener system and a ballastless track, and relates to the technical field of railway construction, the ballastless track turnout fastener system comprises a base plate, a first buffer base plate, a second buffer base plate, a first height adjusting base plate, a force transmission sleeve, a switch tie bolt and a positioning mechanism. The first buffering base plate, the base plate, the second buffering base plate and the first height adjusting base plate are sequentially arranged in a stacked mode. The force transmission sleeve penetrates through the base plate and the second buffering base plate at the same time and makes contact with the first height adjusting base plate. The switch tie bolt is arranged in the force transmission sleeve in a penetrating mode and penetrates through the first height adjusting base plate. The positioning mechanism is fixed to the base plate and used for positioning the steel rail body. The risk that the switch tie bolt is damaged due to transverse shearing force can be reduced, safety is improved, and maintenance cost is reduced.

The present invention relates to a rail turntable (1) for a rail system (2) designed for moving transformer substations (31) and / or transformers, comprising two first rails (3a, 3b) arranged parallel to each other and two second rails (4a, 4b) arranged parallel to each other, each crossing the first rails (3a, 3b), wherein the rail turntable (1) is designed for arrangement in the crossing area (5) of the first and second rails (3a, 3b, 4a, 4b), with at least one crossing block (6) for arrangement in at least one crossing section (8) formed by a crossing of a first and a second rail (3a, 3b, 4a, 4b), and a curved rail (9), in particular circular, for arrangement in the crossing area (5) of the first and second rails (3a, 3b, 4a, 4b), in particular for connecting all crossing sections (8).and at least one transfer piece (10) that can be moved on the crossing block (6) for optionally connecting and / or coupling two facing sections of the curved rail (11a, 11b, 11c, 11d), two facing sections of a first rail (12a, 12b, 12c, 12d, 12e, 12f) and / or two facing sections of a second rail (13a, 13b, 13c, 13d, 13e, 13f).

To obtain a snow melting device that is easy to install and replace. [Solution] The snow melting device comprises a heater extending along a first direction and generating heat when electricity is applied, a holder 3 covering the heater and extending along the first direction, and a first fitting provided on one end of the holder 3 and having a hole formed therein into which a screw can be inserted in a second direction perpendicular to the first direction. The holder 3 is provided with first recesses 312a, 313a on one side facing along the first direction and a third direction perpendicular to the second direction into which a magnet can be inserted.

The utility model discloses a creeping blunt fork wing rail fixing structure and a compound cross turnout system, in one implementation mode, the structure adds a spacer between a blunt fork wing rail and an outer stock rail, so that two steel rails are bound with each other, the fixing force of the wing rail is increased, the longitudinal resistance of the steel rails is increased, and the blunt fork wing rail does not crawl any more through actual inspection. And safe and stable operation of the train is ensured. Meanwhile, the structure has the advantages of low manufacturing cost, convenience in installation and use, durability and the like.

The utility model relates to a movable point rail frog, and relates to the technical field of railway tracks. The utility model provides a movable point rail frog which comprises a point rail, wing rails, guard rails and a plurality of connecting pieces. A fork heel rail is arranged at one end of the point rail, and a transition section is arranged between the point rail and the fork heel rail; the wing rails and the point rails are arranged at intervals; the guard rails are arranged on the wing rails and opposite to the transition sections, and the guard rails face the arrangement direction of the point rail; the multiple connecting pieces sequentially penetrate through and fix the guard rail and the wing rail. The guard rail is arranged on the wing rail through the connecting pieces, so that the guard rail faces the arrangement direction of the point rail, and the problem that the guard rail of the acute frog cannot be arranged due to the fact that the rear end distance of a cross crossover of the movable point rail frog is short is solved. The guard rails can be used for effectively preventing wheels from transversely moving from the point rail to the wing rails, the structural strength of the movable point rail frog is improved, and the engineering requirement that the on-site straight passing speed is 200 km / h is met.

The invention discloses a cross track gap bridge type crossing device and method, and belongs to the technical field of factory track traffic. A cross rail gap bridge type crossing device comprises a gap bridge insertion section which is pressed on a main rail and is made of a steel rail. The gap bridge fixing ends correspond to the two ends of the gap bridge insertion section and are formed by permanent steel rails; a trapezoidal door opening matched with the main rail is formed in the center of the lower end of the gap bridge insertion section; the top end of the trapezoid door opening is not higher than the lower end of the rail head. According to the invention, the passing problem of the crossed track is solved quickly, efficiently and conveniently; mounting and dismounting are convenient and can be independently completed by a single person; the processing cost is low, and the later operation and maintenance cost is obviously reduced.

The invention discloses a seamless modular combined frog and an assembling method, relates to the technical field of railway turnout equipment, and aims to solve the problem of high cost of the frog. The seamless modular combined frog comprises a point rail, a wing rail, an embedded block, a limiting key and a first bolt pair. The embedded block is arranged between the point rail and the wing rail, a positioning hole is formed in the embedded block, and a counter bore is formed in the end, facing the wing rail, of the positioning hole; the limiting key is arranged between the embedding block and the wing rail, and the limiting key is partially embedded in the counter bore; and the first bolt pair sequentially penetrates through the positioning holes of the wing rail, the limiting key and the embedding block, and is used for fastening and connecting the wing rail, the limiting key, the embedding block and the point rail. According to the seamless modular combined frog and the assembling method, the machining process is simplified, and the material cost is reduced.

The utility model relates to graphite switch rail connecting iron which comprises a back plate, a bottom plate and two side plates, the left end and the right end of the back plate are connected with one ends of the two side plates respectively, and the bottom plate is arranged between the two side plates. An upward boss is arranged at the end, close to the back plate, of the bottom plate, a plurality of mounting holes are formed in the bottom plate, and the mounting holes are used for mounting graphite columns to play a lubricating role. The mounting holes are formed in the bottom plate and used for mounting graphite to play a lubricating role, frictional resistance of the switch rail connecting iron in use is reduced, dry grinding of the switch rail connecting iron and other parts is avoided, abrasion of the switch rail connecting iron is reduced, and the service life of the switch rail connecting iron is prolonged.

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.

Described is a railway diamond that allows two intersecting railway lines to cross each other at-grade without incurring discontinuous miming surfaces, thus avoiding the large dynamic impacts normally occurring in traditional railway diamonds. Modified frogs with piston-mounted load-pads located at critical locations can selectively close the inactive flangeways, thus providing quasi-continuous running surfaces over said flangeways for the active route. Operation of the pistons is performed automatically through an interface with the rail traffic control system and provision is made for continued operation of the diamond in instances of technical anomalies. The operating mechanisms are located below the frogs, with risers providing the required vertical separation between the ties and the frogs. Benefits of embodiments of the invention are reduced maintenance costs, potentially increased line capacity, service life extension for the components and the diamond itself, as well as environmental improvements.

A switch arrangement for a track-borne vehicle has at least two articulatedly interconnected switch segments mounted so as to be movable with respect to a base surface. At least one switch segment has a drive. At least two switch segments are interconnected by means of an articulation, which has at least two degrees of rotational freedom. The articulation also or alternatively can have at least one degree of translational freedom, which is optionally formed with at least one additional degree of rotational freedom.

Provided are a 1100-MPa-grade alloyed-forged high-manganese steel frog and a preparation process therefor. The chemical components of the alloyed-forged high-manganese steel frog are (wt%): C: 1.0-1.3, Mn: 12.0-14.0, Cr: 0.5-6.0, Mo: 0.4-3.0, V: 0.15-0.50, Si: 0.3-0.8, Ni: 0.5-4.0, Al: 0.02-0.05, N: 0.008-0.035, P: ≤0.045, S: ≤0.03, and the balance of Fe. In the present invention, the stacking fault energy of a material is regulated by means of alloying, and therefore the strain hardening behavior of an alloy during deformation can be regulated and the strength and plasticity of the material can be improved. Furthermore, the concept of Al+N microalloying is used and a forging process is controlled to realize grain refinement. The grain size of the alloyed-forged high-manganese steel frog of the present invention can be refined to Grade 3-6, the yield strength is 450 MPa or more, the tensile strength is 1100 MPa or more, the elongation is 70% or more, and the impact energy (Aku) is 320 J or more; therefore, the service life thereof is significantly prolonged, and the usage requirements of high-speed and heavy-haul railways are met.