1147results about "Rail fasteners" patented technology

A conducting rail retention system includes a plurality of conducting rails and a rail support assembly. The rail support assembly includes a support pole, the support pole including a top end and a bottom end, a support plate, the support plate being attached to the top end of the support pole, the support plate including a rail support portion on a top surface of the support plate, and a pair of rail clamps movable relative to one another from a rail unlock position to a rail interlock position securing the plurality of conducting rails to the support assembly.

The invention relates to the technical field of rail fasteners, and provides a traffic rail damping fastener which comprises a sleeper, a supporting plate is arranged at the top of the sleeper, fastening assemblies used for fixing the supporting plate to the sleeper are arranged at the two ends of the supporting plate, and two rail gauge assemblies used for fixing a steel rail are arranged at the top of the supporting plate. The two track gauge assemblies are symmetrically distributed along the center of the supporting plate, the two ends of the top of the supporting plate are fixedly connected with blocking bases, the inner sides of the two blocking bases are provided with vibration reduction assemblies, each vibration reduction assembly comprises a supporting base, and the supporting bases are fixedly connected to the inner sides of the blocking bases through bolts; hydraulic buffering pieces used for buffering the gauge assemblies are arranged on the inner sides of the supporting seats. Buffering is achieved through cooperation of hydraulic pressure of oil and the first spring, the vibration reduction pressure of a single spring is greatly reduced, and the problem that elastic fatigue occurs under the action of violent vibration force in a single spring vibration reduction mode is effectively solved.

Described herein is a lightweight, power-efficient edge computing system, called the Autonomous Power-efficient Track Inspection System (APTIS), designed specifically for railroad track component inspection, and methods for making same, using an edge-computing device equipped with a custom computer vision model for meticulous track inspection that employs advanced deep learning and AI technologies, enabling automated detection and evaluation of the condition of various track components in concert with built-in cameras for surveillance.

A rigid-flexible coupling type turnout damping fastener system comprises an iron base plate, an under-plate elastic cushion layer, a heightening base plate, an elastic rail brace, eccentric bushings and an under-rail elastic base plate, the eccentric bushings are inserted into oblong holes in the two ends of the iron base plate and the two ends of the under-plate elastic cushion layer, and turnout tie bolts penetrate through the eccentric bushings and then are fixed to a turnout tie; the under-plate elastic cushion layer is formed by compounding low-rigidity and high-rigidity materials, the elastic rail brace is in elastic contact with a steel rail, the track gauge is adjusted by rotating the eccentric sleeve by 180 degrees, and the transverse rigidity of the fastener system is increased through the elastic rail brace; the fastener system has small vertical rigidity and large transverse rigidity, it can be ensured that the fastener system can provide enough vibration reduction elasticity for the steel rail in the vertical direction, meanwhile, the vertical displacement can be controlled within the design range, and therefore the stability of the steel rail and the running smoothness of a train are improved; and on the other hand, the mutually assembled parts of the fastener system are designed according to the rigid-flexible coupling contact relation of metal and nonmetal, so that the impact vibration of a train on the steel rail can be buffered.

The invention discloses a construction method for a ballastless track of a steel base plate bearing rail table type. The construction method comprises the following steps: collecting midline mileage data of a double-block sleeper on site, synchronously widening a transition area track bed, determining the geometric dimension of a steel base plate, carrying out in-plant finish machining, synchronously arranging the steel base plate bearing rail table, calculating coordinates and carrying out on-site lofting. Drilling a track bed in the transition area and arranging a track bearing table; shifting and connecting steel rails in a transition area; track fine adjustment and operation maintenance; the steel rail is shifted back to a main line; dismantling the temporary line; repairing the existing ballast bed and the waterproof layer; the invention relates to the technical field of railways. The method solves the problem that a ballastless track structure is difficult and complex to access a new line.

The invention relates to a railway line rail fixing structure device, and relates to the technical field of railway track fixing, and the railway line rail fixing structure device comprises a fixing seat used for supporting a steel rail; the two embedded iron bases are located on the two sides of the fixing base correspondingly; the limiting device comprises two fixing assemblies, a buffering assembly and an adjusting assembly, and the two fixing assemblies are symmetrically arranged on the two sides of the steel rail and used for fixing the steel rail and the fixing base; the two buffering assemblies are symmetrically arranged on the two sides of the steel rail and used for buffering and damping vibration generated by acting force on the steel rail when a train passes through the steel rail. The adjusting assembly is arranged between the two buffering assemblies and used for adjusting the distance between the two buffering assemblies. The rail fixing structure has the effects that the mounting process of the rail fixing structure is simplified, the deformation resistance of the rail fixing structure is improved, and the risk of deformation or displacement of the steel rail due to external force is reduced.

The invention discloses a trapezoidal sleeper track integrated construction method, and relates to the technical field of track construction, the method comprises the following steps: assembling a steel rail, a fastener and a trapezoidal sleeper into a track panel to be treated according to the length requirement of the track panel, and binding a track bed reinforcing mesh; a to-be-processed rail row is placed above the elastic vibration reduction parts of the trapezoidal sleepers, the prefabricated base sleepers are placed below the trapezoidal sleepers, the trapezoidal sleepers and the prefabricated base sleepers are fixed through angle steel or bolts to form an assembly structure, and the assembly structure and a ballast bed reinforcing mesh are bound and connected to obtain a to-be-processed device; and after the to-be-machined device is conveyed to the laying position of the construction working face, ballast bed pouring treatment and ballast bed formwork removal treatment are conducted, and construction is completed. The prefabricated foundation sleeper structure is introduced between the ballast bed and the trapezoidal sleeper, the prefabricated foundation sleeper and the ballast bed are bound through the reserved steel bars, the trapezoidal sleeper is directly arranged on the prefabricated foundation sleeper and does not need to participate in the ballast bed pouring process, the construction efficiency can be improved, and it is guaranteed that the damping effect of the trapezoidal sleeper is effectively exerted.

The present invention belongs to the technical field of rail transit, and discloses a beam-type ballastless track with steel guard plates, comprising: a track support base, which includes: two truss pedestals and a steel bar truss. The two truss pedestals are connected by the steel bar truss. A limit boss and two steel guard plates are fixed at the top of the truss pedestal, and a lateral limit cushion block is filled between the steel guard plate and the limit boss; a track beam, the two ends of which are respectively abutted against two adjacent limit bosses. Two longitudinally arranged continuous shoulders are provided on the top surface of the track beam, and the length of the continuous shoulder is equal to that of the track beam; a beam-end composite energy-absorbing and adjusting cushion plate, which is installed in the gap between the end of the track beam and the limit boss; a sub-beam support vibration-damping and adjusting cushion plate, which is crimped between the bottom end surface of the end of the track beam and the top surface of the truss pedestal. The present invention can not only meet the strict requirements of high-speed railways for safety, smoothness and stability, but also effectively prevent the train from tipping over and running out of the line under emergency conditions such as derailment, reducing casualties and property losses.

The invention belongs to the technical field of railway tracks, and particularly relates to a steel rail fastener mounting method which comprises the following steps: step 1, placing sleepers; secondly, baffle seats are placed on the sleepers; step 3, placing the under-rail backing plate; fourthly, the gauge apron is placed; 5, installing a W-shaped elastic strip; sixthly, the screw spikes sequentially penetrate through the W-shaped elastic strips and the gauge aprons to be in threaded connection with the pre-embedded sleeves, and a pre-assembled fastener system is formed; seventhly, the pre-assembled fastener system is moved to a track construction installation position; eighthly, the screw spikes are unscrewed, the gauge apron is lifted to buckle one end of the under-rail cushion plate, the steel rail is laid, and the gauge apron is put down; and ninthly, the screw spikes are tightened, and assembling is completed. Parts are placed in order, and the parts are not prone to being missed and lost; and when the sleeper is carried into a rail construction installation position from the side of the rail, the W-shaped elastic strip can be used as a hanging point, so that the sleeper can be conveniently carried on site, the efficiency is high, and the potential safety hazard during sleeper carrying is greatly reduced.

The utility model relates to the field of track fixing parts, and discloses an anti-skid stable track fixing part which comprises a bottom plate, the top of the bottom plate is fixedly connected with two sets of limiting parts, the sides, close to each other, of the two sets of limiting parts are in contact with track parts, and the tops of the limiting parts are provided with mounting mechanisms. And the mounting mechanism comprises a fixing plate, a mounting groove is formed in the top of the limiting piece, the fixing plate is mounted in the mounting groove, the fixing plate is fixedly connected with the limiting piece through a bolt piece, and an elastic piece is arranged in the fixing plate. According to the utility model, the bolt piece is tightened above the fixed plate, the fixed plate displaces to drive the extrusion piece to move downwards and to be in contact with the bump, and the surface of the bump is extruded by the inclined surface at the bottom of the extrusion piece, so that the bump is subjected to transverse pressure, the transverse position of the track piece is adjusted, and the stability and the precision of track installation are improved.

The utility model discloses an embedded casing pipe for a railroad sleeper, which comprises a casing pipe main body and a turnover device arranged at the bottom of the casing pipe main body, and the turnover device comprises a turnover cover and a turnover sheet arranged in the turnover cover. Compared with the prior art, the embedded sleeve for the railroad sleeper has the advantages that the embedded sleeve for the railroad sleeper can prevent mud at the bottom from splashing in the normal service stage; when sundries are accumulated at the bottom of the sleeve, the sundries are cleaned and discharged through the bottom turnover device, normal installation of the screw spikes is guaranteed, and the situation that buckling pressure is reduced due to the fact that the elastic strips are not fastened in place through the screw spikes, and potential safety hazards are caused to the track is avoided.

A new vibration-damping ballast bed structure, comprising a foundation (4), wherein the upper portion of the foundation (4) is of a convex arc shape, and drainage ditches (6) are provided at the junctions of two sides of the foundation (4) and the convex-arc-shaped portion, the bottoms of the drainage ditches (6) being lower than two side edges of the convex-arc-shaped portion of the foundation (4); a floating plate (1) arranged at the top of the foundation (4), wherein the lower portion of the floating plate (1) is of a concave arc shape; and several vibration isolators (3) configured to connect the foundation (4) and the floating plate (1). Each vibration isolator (3) comprises an outer sleeve (9), an inner sleeve (10) and a pre-buried bearing casing (11), wherein the outer sleeve (9) is a hollow cylinder and embedded in the floating plate (1), and a bearing block is provided in the outer sleeve (9); the pre-buried bearing casing (11) comprises a lower base and a casing, the casing being hollow, the lower portion of the casing being fixedly connected to the lower base, and the lower base being pre-buried inside the convex-arc-shaped portion of the foundation (4); and the inner sleeve (10) comprises a top plate, a spring and a lower bottom plate, the top plate being connected to the lower bottom plate by means of the spring, the lower bottom plate being connected to the lower base of the pre-buried bearing casing (11), and the top plate of the inner sleeve (10) being fitted and connected to the bearing block of the outer sleeve (9). By means of changing the shape of the foundation and providing drainage ditches on two sides and flange structures, a vibration-damping device drains water more easily and is not prone to experiencing water accumulation, blockages can be removed more conveniently, and smooth drainage is ensured.

The invention relates to the technical field of rail transit, in particular to a sleeper with adjustable ballast bed resistance, a design method and a testing device. The sleeper with the adjustable ballast bed resistance comprises a sleeper body and an inflatable cushion, the inflatable cushion is arranged on the side, used for making contact with a ballast bed, of the sleeper body, the inflatable cushion is provided with an inflation valve, through the arrangement, the ballast bed resistance generated by the sleeper can be adjusted according to the actual situation, and the ballast bed resistance can be adjusted according to different requirements; the design method of the sleeper with the adjustable ballast bed resistance is used for designing the sleeper with the adjustable ballast bed resistance, through the design method, the air pressure values of the inflatable cushions at different positions in the line can be set according to the actual working condition and operation condition, and the capacity of changing the ballast bed design resistance of the same line due to the change of the service environment is improved; the testing device for the track bed resistance adjustable sleeper is used for testing the track bed resistance adjustable sleeper, and through the arrangement, the track bed resistance adjustable sleeper can be conveniently tested under different gradients.

The utility model discloses a subway track laying damping device and a damping rubber pad thereof, and relates to the field of track damping. The subway track laying damping device and the damping rubber pad thereof comprise a damping rubber assembly, the damping rubber assembly comprises a composite rubber part, the composite rubber part comprises a composite rubber plate, a rubber bottom frame and a conical rubber block, the composite rubber plate is fixedly connected to the top of the conical rubber block, and the rubber bottom frame is fixedly connected to the bottom of the conical rubber block. The composite rubber plate is slidably connected into the rubber bottom frame. According to the subway track laying damping device and the damping rubber pad thereof, the multiple sets of damping rubber pads with different effects are arranged, so that the damping device has good longitudinal damping and transverse damping effects, the damping device is designed to be modularized, the damping device is easy to disassemble and replace, the damping effect is improved, and the damping rubber pad is easy to disassemble.

The invention discloses an induction power generation and frequency modulation vibration reduction integrated ballastless track vibration reduction structure, and belongs to the technical field of track traffic. A track plate and a base plate are longitudinally laid along a track line, and the track plate is located above the base plate; the adjusting layer is arranged between the track plate and the base plate; an elastic vibration reduction layer is arranged between the base plate and the piezoelectric device layer, and the elastic vibration reduction layer is filled in a limiting structure in the base plate; a silicon steel sheet iron core structure of an electromagnetic coil is arranged in the elastic vibration reduction layer in the limiting structure; the piezoelectric device layer is located between the adjusting layer and the base plate and connected with the electromagnetic coil through a wire. The piezoelectric material and the magneto-rheological elastomer material are adopted, integration of induction power generation and frequency modulation vibration reduction is achieved, when the pressure is not enough to enable the piezoelectric device to output current, the magneto-rheological elastomer material still has the mechanical property of a common rubber elastomer, the whole structure still can guarantee the vibration reduction function, and meanwhile power-off protection is achieved.

The utility model discloses a rail pressing device for installing and fixing an industrial rail. The rail pressing device comprises a base, an upper cover plate and a bucket-shaped bolt. The base is fixed to a track beam, and a wedge-shaped meshing mechanism sliding in the lateral direction is arranged at the covering position of the upper cover plate and the edge of the base. The upper cover plate is provided with a through hole, and the base is provided with an open hole groove. The bucket-shaped bolt penetrates through the through hole and the opening hole groove to lock the upper cover plate and the base. A wedge-shaped meshing mechanism sliding in the lateral direction is arranged at the covering position of the upper cover plate and the edge of the base, so that the fixed base and the upper cover plate are prevented from retreating and can be automatically locked, and the locking component is provided with double lateral force bearing points. The design that the front end of the base and the upper portion of the base are stressed at the same time is used, so that rail lateral force conducted by the upper cover plate acts on the whole base, and damage of large lateral force to the rail pressing device is eradicated. Due to the design of the wedge-shaped meshing mechanism, the bolt loosening phenomenon is reduced, and the track is more convenient to maintain.

The present invention relates to a railroad spike stabilizer for railway and construction applications. The stabilizer comprises a hollow, square-based prism body with four outer walls defining an internal cavity conforming to a railroad spike's geometry. The cavity, open at the top, tapers inward with angled inner walls. Segmented, flexible legs extend from the bottom, compressing and expanding to engage the tie plate hole, with clips locking the stabilizer. Flexible ribs adapt to hole variations, and a visual alignment guide ensures orientation. A spike and plug stabilizer embodiment includes a ribbed or finned plug for pre-existing holes, enhancing spike stability and reducing fatigue compared to wood plugs or polyurethane foam. The stabilizer improves alignment, reduces spike fatigue, minimizes worker injuries, and enables single-worker operations.

The present invention relates to the field of tram track laying construction. Disclosed is a method for laying a jointed ballasted track for trams on small-radius curves. In the method, by adjusting and fixing track alignment before ballast laying and track finishing, the conventional construction sequence of ballast laying and track finishing is changed, track lifting and alignment adjustment for small-radius curves are carried out prior to ballast laying and tamping, and during track laying, sleepers are densely arranged at rail joints, and concrete buttresses are added beside the sleepers to secure the sleepers in place and counteract the bending stress of rails, ensuring precise control of track alignment and elevation on the small-radius curves, and realizing laying of the jointed ballasted track for trams on the small-radius curves. After construction, ballast laying and track finishing on the small-radius curves can meet track operation requirements in a single pass, ensuring smooth and safe tram operation.

The utility model relates to the technical field of harbor machinery trolley tracks, in particular to an anti-falling device for a track pressing plate. The anti-falling device comprises a rail bearing beam, a trolley track is installed above the rail bearing beam through a base plate, a plurality of anti-falling devices are symmetrically arranged on the two sides of the trolley track, each anti-falling device comprises a soft pressing plate bottom plate, a soft pressing plate upper pressing plate is installed above the soft pressing plate bottom plate through two sets of bolts and self-locking nuts, one end of the soft pressing plate upper pressing plate is arranged above the trolley track, and the other end of the soft pressing plate upper pressing plate is arranged above the trolley track. A nut cover cap is arranged above the self-locking nut, and anti-loosening assemblies are arranged on the soft pressing plate bottom plate, the soft pressing plate upper pressing plate and the nut cover cap; according to the device, the tightening steel wire and the rope penetrating rings are arranged, the soft pressing plate bottom plate, the soft pressing plate upper pressing plate and the nut cover are connected into a whole, so that the angle of the self-locking nut is fixed, loosening is prevented, meanwhile, the tightening steel wire connects a plurality of components, and even if part of the components are deformed and loosened in long-term use, the components cannot fall off.

The utility model is suitable for the technical field of multi-layer composite product structures, and provides an under-rail reinforced rubber base plate of a multi-layer composite structure and application of the under-rail reinforced rubber base plate. A plurality of grooves which intersect in the inclined direction are formed in the pillow touching layer and the rail touching layer, the multiple upper grooves which intersect in the inclined direction jointly form network grooves, and the network grooves divide the pillow touching layer and the rail touching layer of the base plate into a plurality of shoulder pads. Therefore, the reinforced under-rail base plate can enable stress to be uniformly dispersed, fatigue recovery is more than two times faster than that of an existing base plate, the rhombic groove channels of the base plate are opened, and the ventilation, cooling and drainage speed is high. And meanwhile, the rhombic shoulder pad of the base plate can effectively restrain sliding abrasion and tearing caused by impact stretching of the base plate.

A method for singulating, orientating and distributing tie plates along a section of a track of a railroad is disclosed using a vehicle adapted to travel on rails including a tie plate singulating assembly, a tie plate flipping assembly, a tie plate quarter turn assembly, and a distribution assembly. The tie plate flipping assembly flips shoulder-side down tie plates into a shoulder-side up orientation while maintaining shoulder-side up tie plates in the shoulder-side up orientation. A diverter of the tie plate quarter turn assembly advances tie plates into a rotation inducing abutment resulting in the tie plates turning toward a desired orientation. The distribution assembly distributes tie plates to accumulation slides, controlling distribution with a dealer assembly and orienting discharge assembly to distribute the tie plates in a desired spacing and orientation along the track of a railroad.

The utility model discloses a railway track base plate, which belongs to the technical field of railway track facilities, and comprises T-shaped bolts, W-shaped elastic strips, elastic blocks, insulating blocks, a steel rail and an under-rail base plate, the iron base plate is made of nodular cast iron, the T-shaped bolts are symmetrically mounted on two sides above the iron base plate, screw spikes are embedded in an embedded sleeve, and the W-shaped elastic strips and the elastic blocks are embedded in the embedded sleeve. An insulating buffer base plate is installed above the sleeper, an iron base plate is installed above the insulating buffer base plate, and embedded sleeve holes are symmetrically formed in the two sides of the iron base plate and the two sides of the insulating buffer base plate. The pre-embedded sleeve penetrates through the iron base plate and the under-rail base plate, the working efficiency of workers is improved while the time of the workers is saved, the protruding blocks at the bottoms of the elastic blocks are matched with the grooves in the two sides above the iron base plate, and the inclination angle between the protruding blocks at the bottoms of the elastic blocks and the bottom edges of the elastic blocks is 80 degrees. Therefore, the whole gasket does not need to be replaced after the elasticity of the elastic block is lost, resources are saved, and meanwhile the working efficiency of a train is improved.

The utility model discloses a rail brace type elastic strip which comprises an elastic strip body, a vertical supporting part is arranged at the bottom of the elastic strip body, the vertical supporting part vertically limits the rail bottom of a steel rail, an elastic strip middle limb or an elastic strip side limb is bent upwards in an inclined mode to form a transverse supporting part, and the transverse supporting part transversely supports and limits the rail waist of the steel rail. The utility model further discloses an elastic strip rail brace type fastener system which comprises an insulation coupling base plate, a bottom base plate and an under-rail pad which are arranged from bottom to top, the rail brace type elastic strip is arranged at the position, corresponding to the outer side of the steel rail, of the bottom base plate, an insulation module is arranged at the position, corresponding to the rail brace type elastic strip and the steel rail, of the bottom base plate, and a second elastic strip is arranged at the position, corresponding to the inner side of the steel rail, of the bottom base plate. The transverse limiting function of the rail waist of the steel rail is increased through the structural design of the rail brace elastic strips, and the elastic strip rail brace type fastener system which is high in transverse stability and low in installation and maintenance cost is achieved on the premise that elastic split type fastener parts are not increased.

The utility model relates to the technical field of rail transit, and discloses an integrated anti-vibration pad rail plate system, which comprises a concrete base, a rail plate, an anti-vibration pad, an anti-vibration pad and an anti-vibration pad, vibration reduction mechanisms are further arranged in the gap between the track plate and the concrete base and the gap between the track plate and the boss. According to the integrated anti-vibration pad track board system, the integrated anti-vibration pad is prefabricated or cast on site, the procedures of anti-vibration pad pasting and laying, mortar adjusting layer pouring, boss resin pouring and the like are replaced, and construction is more convenient and efficient; the device can be designed according to different track plate structure types and heights, the structure is simple, and good line adaptability is achieved; compared with a traditional elastic pad, the integrated anti-vibration pad is good in integrality, accurate in positioning and good in autohension, the phenomenon that the integrated anti-vibration pad falls off from the track plate after being used for a high frequency is avoided, and the using effect is remarkably improved.

The invention discloses a self-adaptive metro track anti-falling device and an operation method, the self-adaptive metro track anti-falling device comprises a base used for placing a steel rail and further comprises an anti-falling mechanism, the anti-falling mechanism is composed of anti-falling assemblies arranged on the two sides of the steel rail and used for fixing the steel rail, and each anti-falling assembly comprises a clamping moving frame and an inner anti-falling block; an anti-disengaging hole is formed in the side, close to the steel rail, of each inner anti-disengaging block, an anti-disengaging piece is arranged in each anti-disengaging hole, one end of each anti-disengaging piece is an elastic piece, the other end of each anti-disengaging piece is a contact piece, and the multiple contact pieces located on the two sides of the steel rail make close contact with the steel rail along the outer wall of the steel rail when pressed. The steel rail anti-falling device can be suitable for steel rails of different specifications, meanwhile, the problem that limiting and anti-falling operation of different types of steel rails is inconvenient is solved, the operation process is simplified, the phenomenon that the steel rails turn over and fall off is prevented, and the steel rail anti-falling device can meet the operation requirements of different machining scenes of the steel rails.

The invention relates to the technical field of polyurethane materials, in particular to a polyurethane elastic backing plate for a railway and a preparation method of the polyurethane elastic backing plate. The polyurethane elastic base plate provided by the invention is a low-compression permanent-deformation polyurethane elastic base plate for a railway, the raw materials and the preparation process of the polyurethane elastic base plate are specifically shown in the following description, and under the matching of the whole formula, the microphase separation degree of a hard section and a soft section in long-term service is effectively controlled; the polyurethane elastic backing plate not only has low compression set, but also has excellent tensile mechanical properties and static stiffness, lower-35 DEG C low-temperature static stiffness change rate, lower dynamic and static stiffness ratio and lower 30-day high-temperature aging static stiffness change rate.

The invention relates to a guide plate for laterally guiding a rail in a rail attachment point formed on a railroad tie, wherein the guide plate has a top side having a support surface for supporting a spring element, an underside, by way of which the guide plate is supported on the railroad tie during use, a support segment having a support surface, by way of which the guide plate is supported, during use, on a shoulder provided on the railroad tie, and possesses a guide segment which is formed opposite to the support segment, and on which a guide surface is present, on which a rail is laterally guided during use. In order to counteract twisting of the rail and concomitantly the risk of the occurrence of track warping at high outdoor temperatures when using such a guide plate in a rail attachment point, a latch projection is formed in lateral end segments of the guide surface, in each instance, projecting away from the guide surface in the longitudinal direction of the guide plate, which is provided for the purpose of engaging, during use, under the longitudinal side of the rail that is assigned to the guide surface, in each instance, wherein the distance between the latch projections amounts to at least 60% of the width of the guide surface.