483results about "Railway tracks" patented technology

The invention provides a maglev traffic track connecting structure, a maglev traffic track and a construction method of the maglev traffic track. The connecting structure comprises a penetrating type sleeve, a long bolt, an elastic cushion set and a fastening assembly. The penetrating type sleeve penetrates in the thickness direction of the concrete cover plate. The long bolt sequentially penetrates through the track, the penetrating type sleeve and the induction iron core. The elastic pad set comprises a first elastic pad arranged between the top end of the penetrating type sleeve and the induction iron core and a second elastic pad arranged between the bottom end of the penetrating type sleeve and the track. The fastening assembly comprises a nut in threaded fit with the end of the long bolt, and the rail and the induction iron core are fixed to the upper side and the lower side of the concrete cover plate by screwing the nut. The connecting structure is simple and reliable, good in stress condition and convenient to operate and maintain. On one hand, the track is tightly attached to the bottom end face of the concrete cover plate, the stress condition of the long bolts is good, and shear failure is not prone to occurring. And on the other hand, on the basis of realizing adjustable precision, the replacement difficulty and cost of the induction iron core and the track are relatively low.

The present invention relates to the technical field of prefabricated elevated stations. Disclosed are a self-balancing modular fully-prefabricated elevated station transition structure construction method and a structure. The construction method comprises the following steps: constructing precast pipe piles and a precast pile cap; executing concrete backfilling; installing a pier column and connecting same to the pile cap; installing a Y-pier cap for executing a connection; installing a precast middle cap beam and precast side cap beams; installing precast steel tubular columns; installing top overhanging precast reinforced concrete cap beams and a precast reinforced concrete middle cross beam; hoisting and installing precast platform slabs and precast arched platform headwalls; installing precast straddle monorail track beams; and installing a precast steel structure canopy. By using the dual columns to achieve an overhead layer and an upper structure, the present invention reduces the absolute overhanging length, improves the performance of the structure under stress, and reduces the sectional dimensions of components, thus saving the floor area of the pier column to the utmost extent, enhancing the applicability of station structures in a wider range of various urban environments, and improving the universality of the structure.

The invention discloses a superconducting magnetic levitation U-shaped track beam and a preparation method thereof, and belongs to the technical field of bridge engineering.The superconducting magnetic levitation U-shaped track beam is used for running of a magnetic levitation train with superconducting coils arranged on the two sides of a train body, and the track beam comprises a plurality of track beam sections which are sequentially spliced in the longitudinal direction; each track beam section comprises a main beam body and two side plates arranged on the two transverse sides of the main beam body respectively, the two side plates and the main beam body are integrally formed to form a U-shaped beam body structure, a maglev train can run in the U-shaped beam body, mounting grooves are formed in the inner side wall faces of the two side plates and used for mounting ground coils, and the invention further provides a preparation method of the superconducting maglev U-shaped track beam. The superconducting magnetic levitation U-shaped track beam is formed by splicing the multiple track beam sections, the main beam body and the two side plates in the track beam sections are integrally formed, the number of joints of the track beam is greatly reduced, the smooth performance of the track beam is guaranteed, and the overall stability of a magnetic levitation track system is improved.

The invention belongs to the technical field of rail transit equipment, and provides a vibration damping device for rail transit, which comprises a vibration damping seat, the top of the vibration damping seat is vertically connected with a rail in a sliding manner, and a bearing vibration damping assembly is arranged between the rail and the vibration damping seat; the two sets of main vibration reduction assemblies are arranged on the two sides of the rail correspondingly, each main vibration reduction assembly comprises an eccentric block arranged in a vibration reduction base, a rotary driving mechanism is arranged between the eccentric block and the bearing vibration reduction assembly, and the rotary driving mechanism drives the eccentric block to swing in a reciprocating mode when the rail vibrates up and down; the hydraulic vibration reduction mechanism is in transmission connection with the rotary driving mechanism, a secondary vibration reduction part is arranged in the hydraulic vibration reduction mechanism and corresponds to the eccentric block, and when the amplitude of the track is too large, the eccentric block abuts against the secondary vibration reduction part to increase damping of the hydraulic vibration reduction mechanism. The damping device can adapt to different vibration intensities, can automatically enhance damping force under the large-amplitude working condition, and provides a better vibration reduction effect.

The utility model relates to a structure for changing an existing railway bridge into a rigid roadbed. The structure comprises a pile foundation, a bearing platform, a bearing platform top retaining wall and a filling steel plate. The pile foundation and the bearing platform are located below an existing bridge girder, the existing bridge girder is separated from an original support after being lifted, and a filling steel plate is inserted between the bottom of the existing bridge girder and the bearing platform. The bearing platform top retaining walls are located on the two transverse sides of the existing bridge girder and located on the top of the bearing platform, and early-strength micro-expansion concrete is poured on the upper portion of the bearing platform, the inner sides of the bearing platform top retaining walls and the lower portion of the existing bridge girder. According to the utility model, two structures of a bridge and a roadbed are reasonably integrated, the structure is novel, the stress is reasonable, the improved structure has better overall performance, the stress and deformation requirements of the turnout structure can be better met, the purpose of inserting the turnout into the existing railway bridge transition area can be completed under the condition of not interrupting the railway operation, and the construction efficiency is improved. The influence of the existing railway wiring reconstruction project on traffic operation is greatly reduced, and the construction period is shortened.

The invention provides a truss type steel structure magnetic levitation track panel, a track and a manufacturing method. The track panel is of a steel bolting modular truss track structure and is provided with at least three sleepers which are transversely distributed at intervals in parallel at equal intervals; the bottoms of the two ends of the sleeper are longitudinally bolted with n-shaped rails respectively; induction plate iron cores and skid rails are longitudinally mounted at the tops of the two ends of the sleepers respectively; a plurality of supporting pieces are longitudinally and uniformly distributed between adjacent sleepers, and the top ends of the supporting pieces are bolted with induction plate iron cores and skid rails; the induction plate iron core is modularly and detachably provided with a driving surface induction plate, and the skid rail is modularly and detachably provided with a skid plate; two magnetic pole faces are integrated at the bottom of the n-shaped rail, and a detection face is arranged between the magnetic pole faces. The device is stable and reliable in structure, convenient to maintain, excellent in adaptability, 100% in-plant prefabrication rate, reduced in installation linear control difficulty, improved in construction efficiency, reduced in maintenance cost and replacement cost, and suitable for popularization.

The present invention is in the field of a National Individual Floating Transportation Infrastructure (NIfTI) wherein floating vehicles can travel by magnetic levitation and propagation. The vehicles can travel at a controllable height above the existing, albeit modified, road infrastructure and at relatively high speeds.

The invention provides a beam end large-displacement stretching and retracting and rail temperature adjusting integrated device of a maglev traffic bridge. The beam end large-displacement stretching and retracting and rail temperature adjusting integrated device comprises a first fixed F rail section, a second fixed F rail section, an F rail length adjusting section and a steel sleeper distance adjusting device. The second fixed F rail section and the F rail length adjusting section are sequentially connected to the second beam body, the first fixed F rail section is arranged on the first beam body and extends to the second beam body across the beam seam to be connected with the F rail length adjusting section, and the F rail length adjusting section can adjust the length. The steel sleeper distance adjusting device is arranged at a beam seam between the first beam body and the second beam body and located below the first fixed F rail section, the steel sleeper distance adjusting device comprises a plurality of sliding steel sleepers arranged at intervals in the longitudinal bridge direction, and the sliding steel sleepers are in sliding connection with the first fixed F rail section above the sliding steel sleepers. And the distance between the adjacent sliding steel sleepers can be adjusted along with the change of the beam seam. The problem of telescopic displacement of the F rail and the steel sleeper caused by large displacement of the beam body is solved, and the system is simpler and more stable.

The invention discloses a multi-source heat pump system and a control method thereof, and relates to the technical field of road roadbed maintenance equipment. Comprising ground heat source equipment, underground heat source equipment, a first heat exchange part, a second heat exchange part and heat dissipation equipment, the ground heat source equipment and the underground heat source equipment are connected, the first heat exchange part is arranged in the ground heat source equipment, the second heat exchange part is arranged in the underground heat source equipment, the first heat exchange part and the second heat exchange part are both connected with the heat dissipation equipment, and the heat dissipation equipment is used for being buried in a road roadbed. In the first state, an inner cavity of the first heat exchange piece and an inner cavity of the second heat exchange piece both communicate with an inner cavity of the heat dissipation equipment, and the first heat exchange piece and the second heat exchange piece are both in a heat absorption state; and in the second state, the inner cavity of the first heat exchange piece and the inner cavity of the second heat exchange piece are both disconnected from the inner cavity of the heat dissipation equipment, the inner cavity of the first heat exchange piece communicates with the inner cavity of the second heat exchange piece, the first heat exchange piece is in a heat absorption state, and the second heat exchange piece is in a heat dissipation state. The problem that an existing clean energy heat pump system is large in integration difficulty can be solved.

The utility model discloses a continuous conductor plate for a magnetic suspension automobile, which comprises a first conductor plate and a second conductor plate which are connected with each other, the end part of the first conductor plate is provided with a first splicing part, the end part of the second conductor plate is provided with a second splicing part, and the shapes of the first splicing part and the second splicing part are complementary. And the first splicing part and the second splicing part are spliced together to form a continuous conductor plate. When the magnetic wheel of the magnetic suspension automobile passes through the gap between the conductor plates, the first conductor plate provides an eddy current field before passing through the gap, and the second conductor plate provides an eddy current field after passing through the gap, so that the continuity of eddy current is ensured, and the operation efficiency of the whole system of the magnetic suspension automobile and the conductor plates is improved.

The utility model discloses a local variable stiffness enhanced welding stud shear connector and a steel-concrete combined track beam. The connector comprises a thickened bottom rod, a slender middle rod and a cylindrical head which are connected in sequence, the diameter of the thickened bottom rod is greater than that of the slender middle rod; the cylindrical head is larger in diameter than the elongated middle rod. The steel-concrete combined track beam comprises a UHPC cast-in-place bridge deck slab, a local variable stiffness enhanced welding stud shear connector and a track steel beam, and the local variable stiffness enhanced welding stud shear connecting piece is welded on the top surface of the track steel beam and is used for connecting the track steel beam with the UHPC cast-in-place bridge deck at the upper part. The connecting piece has the advantages of being suitable for the steel-concrete combined track beam and aiming at solving the problems that a traditional shearing force connecting piece is insufficient in shearing bearing capacity under the complex dynamic load environment, a concrete panel is prone to cracking and the like, and therefore the overall bearing capacity, durability and anti-cracking performance of the track beam are improved, and the quality and efficiency of the cast-in-place construction technology are optimized.

The low-speed maglev large-span bridge end super-large displacement track row expansion device is used to realize high-precision maglev track and foundation structure deformation coordination control, and well solves the expansion deformation of the bridge end super-large displacement caused by temperature difference. The track row structure unit is continuously arranged from the main span side pier to the boundary pier on the top surface of the bridge body, the longitudinal front end of the first track row structure unit is anchored and connected with the main span beam body through the anchoring device, and the last track row structure unit longitudinally spans the super-large beam joint. The main body of the track row structure unit includes the bearing rail beam segment and the frame type track row unit, the bearing rail beam segment is integrated with the main span beam body, the frame type track row unit is installed on the bearing rail beam segment through the elastic strip fastener, and the bearing rail beam segment and the frame type track row unit are provided with longitudinal expansion structure and vertical and horizontal limiting structure. A pair of F-shaped guide rails are fixedly installed on the top surface of the frame type track row unit in transverse direction, and the wing plate joint is arranged between the longitudinally adjacent F-shaped guide rails.

The utility model discloses a light overhead roadbed structure which comprises an upper main body structure, the upper main body structure is in a segment type, an expansion joint is arranged between the adjacent upper main body structures in the line direction, the lower end of the upper main body structure is provided with a joist structure connected with the upper main body structure, and the joist structure is supported by a pile structure. And thick broken stone hardcore layers in contact with the upper main body structure are further paved between the beam structures. The middle of the overhead roadbed structure is hollow, the overhead roadbed structure has the advantages of being small in filler amount, light in weight, small in soil body additional stress and capable of remarkably reducing post-construction settlement caused by the additional stress. The overhead roadbed structure is small in structural size in the cross section direction, has the advantage of being small in occupied area, and can save land. The overhead roadbed structure adopts a foundation form of the joists and the cast-in-situ bored piles, has the characteristics of high stability and strong lateral deformation resistance, and is safe and reliable in structure.

Disclosed in the present invention are a magnetic-levitation spatial curved beam molding system and molding method. The magnetic-levitation spatial curved beam molding system comprises: a side mold assembly; and functional part mold plate assemblies, wherein two functional mold plate assemblies are correspondingly arranged on two side mold plates, respectively, each functional part mold plate assembly comprises functional part mold plates used for locating a magnetic levitation functional part and at least two vertical adjustment assemblies, and driving ends of vertical adjustment parts are movably fitted with the bottoms of the functional part mold plates, respectively so as to adjust the spatial locations and angles of the functional part mold plates. The functional mold plate assemblies are provided to locate and mount the magnetic levitation functional part, and the vertical adjustment assemblies and lateral adjustment parts are provided to implement any adjustment of the spatial angles and locations of the functional part mold plates, so as to satisfy the requirement of adjusting the spatial location of the magnetic levitation functional part on a spatial curved beam, such that the arrangement location of the magnetic levitation functional part can be better matched with the structure of the spatial curved beam, and the molding precision of the spatial curved beam is ensured.

The invention relates to the technical field of rail traffic, in particular to a rail traffic steel rail vibration and noise reduction device which comprises a steel rail section, the left side and the right side of the steel rail section are both fixedly connected with vibration reduction mechanisms, and the tops of the two vibration reduction mechanisms are both movably connected with noise reduction mechanisms. The efficient and stable rail transit steel rail vibration and noise reduction function is achieved, when a vehicle passes through the vibration reduction mechanism and the noise reduction mechanism, vibration and noise generated by the vehicle can be effectively absorbed and buffered, a spring assembly in the vibration reduction mechanism elastically deforms under the pressure of the vehicle, vibration energy is converted into elastic potential energy, and the vibration reduction mechanism is arranged on the vibration reduction mechanism. Excessive transmission of vibration is avoided; and parts such as a rubber pressing plate and a second spring in the noise reduction mechanism preliminarily buffer the pressure of the vehicle and reduce noise through self deformation and elastic recovery when the vehicle passes by, and meanwhile, the stability of the whole device is greatly improved through the linkage design of all the parts.

The invention provides a heating and heat preservation system and a temperature control method for a suspension type monorail turnout in a cold region, and the system is provided with a plurality of temperature detection devices, a temperature controller, an operation interface, an isolation transformer, a heating control box and a heating device, the temperature controller is interactively and electrically connected with the operation interface and the heating control box; the input end of the heating control box is connected with the isolation transformer, and the output end is connected with the heating device. The temperature control method comprises two processes: an active special processing process and an automatic temperature control process. The mode of multiple temperature control points, multiple temperature sections and multiple control processes is adopted, the usability, reliability and safety of the suspension type monorail turnout system in the cold environment are improved, and the method is suitable for popularization.

The invention relates to a single-hole double-track tunnel mid-partition wall construction method, which is based on synchronous construction of tunnel shield, bow-shaped piece installation and flue plate installation, and comprises the following steps: S1, carrying out mid-partition wall position lofting in an area where a bow-shaped piece is installed behind a shield tunneling machine, and completing steel bar planting operation of a mid-partition wall; s2, a movable door type steel platform is used for binding reinforcing steel bars of the mid-partition wall along the embedded reinforcing steel bars on the bow-shaped piece; s3, top flue plates at the corresponding positions are installed synchronously by means of the movable door type steel platform, and steel bars at the corresponding positions of the top of the middle partition wall are connected with the flue plate embedded connectors; during shield tunneling construction, the movable door type steel platform and the steel mould trolley are synchronously used for construction of the mid-partition wall, and while transportation of a construction vehicle is not affected, concrete pouring of the mid-partition wall is conducted from the upper portion of the flue plate in a pumping mode, so that synchronous construction of the mid-partition wall and shield tunneling is completed; the purpose of improving the middle partition wall construction efficiency is achieved.

The application provides a guide rail type rubber wheel system, which comprises a guide rail and a guide device; the guide rail comprises a straight guide rail and a transition guide rail; the guide rail is an H-shaped guide rail; the guide device comprises a guide frame, a guide arm, an extension rod and a guide wheel; the front end and the rear end of the guide frame are provided with a pair of guide arms; each guide arm is detachably assembled with an extension rod below; the guide wheel is rotatably assembled on the extension rod; the extension rod is a damping extension rod; the central vertical rail surface of the transition guide rail is provided with a lateral guide rail which is protruding; and each guide wheel is provided with a groove which can allow the radial embedding of the guide rail; the extension rod can be extended or retracted along with the guide rail; the RRT guide wheel can be guided on the rail platform of an elevated bridge; the RRT guide wheel can also be guided in the pre-buried track on the urban road surface; and the RRT laying line can be integrated with the existing road surface.

To provide a girder end structure and branching device that can improve durability. [Solution] The mounting surface 46b of the plate member 46 is placed on the upper surface 43a side of the base 41 of the movable girder 12f, and the plate member 46 is fastened to the base 41 by bolts 48 and nuts 49 that penetrate the plate member 46 and the base 41 in the vertical direction. The pressure receiving body 51 of the pressure receiving member 50 is fitted into the upper hole 46e opened in the mounting surface 46b. The pressure receiving body 51 and the overhanging portion 52 that extends vertically from the lower end of the pressure receiving body 51 are fitted into the lower hole 43c opened in the upper surface 43a. In this state, the hooking portion 47c that faces the overhanging portion 52 in the vertical direction is placed on the upper surface 43a of the base 41. As a result, the durability of the girder end structure 40 can be improved.

The present application relates to the technical field of air track, and particularly relates to a track changing device of a patrol robot, which comprises a first track and a plurality of second tracks, and further comprises a ring-shaped track changing seat, wherein the first track and the plurality of second tracks are distributed in a ring shape around the outside of the ring-shaped track changing seat, a track changing assembly is movably arranged in the ring-shaped track changing seat, the track changing assembly comprises a connecting track, a driving assembly is arranged on the ring-shaped track changing seat, the track changing assembly is driven to rotate by a set angle through the driving assembly, so that the track changing assembly is docked with the first track or the plurality of second tracks, and track changing operation is realized; through the arrangement of the track changing assembly, the present application can realize quick docking and passing of the cross tracks, and does not need to rely on a large-curvature curved track to realize path switching.

The invention discloses an integrated track coil for a superconducting electric aerotrain and a track beam structure of the integrated track coil, relates to the technical field of magnetic suspension, and solves the technical problems that an existing track coil is low in maintenance efficiency and high in manufacturing cost due to the fact that the number of used coils is large. The integrated track coil comprises a coil module, the coil module comprises coil boxes, and the coil boxes are installed on the two sides of a track base; the two groups of zero magnetic flux coils are arranged in the coil box, and the zero magnetic flux coils are positioned in the coil box; bending parts are arranged at the two ends of the propelling coil in the longitudinal direction, the zero-magnetic-flux coil is located between the bending parts, and the zero-magnetic-flux motor has the advantages that maintenance is convenient, and the number of used coils and the manufacturing cost are reduced.

The invention relates to a combined drainage and irrigation device (6) comprising: - a drainage layer (7) provided with an absorption sheet (70), with a filtration sheet (71) covering the absorption sheet (70), at least two drains (72) positioned between the absorption sheet (70) and the filtration sheet (71), - a duct (73) for channelling the water from the absorption sheet (70), at least one end of the drains (72) being connected to the duct (73), characterised in that the device comprises a drip irrigation system (8) provided with at least one array of tubes (80); the array being located between the sheets (70, 71) and positioned between the two drains (72), the sheets (70, 71) being between the drains (72) and the tubes (80). The invention further relates to a green roof (1) for covering a building, or an arena (12) for horses (13), the roof or arena being equipped with a device (6) according to the invention.

The application discloses a kind of floating plate low height power vibration absorber, including mass, mass both ends are symmetrically arranged first support, first support is mutually perpendicular fixed part and support part, the support part and mass both ends are fixedly connected rubber layer, the bottom surface of mass distance fixed part bottom surface has interval S.The power vibration absorber presented in the application, mass, support and rubber layer are sequentially laminated connection, so that the height of whole power vibration absorber is reduced, and the driving of vehicle is not affected.The thickness of mass can be controlled, and the frequency range of power vibration absorber is adjusted.

The maglev train magnetic system with the high traction efficiency comprises a train body, a suspension frame, electromagnets and a U-shaped track, the train body is connected with the suspension frame, and the electromagnets are symmetrically installed at the two ends of the suspension frame; the U-shaped rails are symmetrically mounted on the rail beam, so that the electromagnets are magnetically connected with the U-shaped rails to generate suspension guiding traction force; the U-shaped track comprises a plurality of layers of ferromagnetic material plates and an aluminum plate on the innermost layer; the electromagnet comprises a motor primary mechanism and a suspension mechanism, and the motor primary mechanism faces the innermost aluminum plate of the U-shaped track to form a short stator motor device; and the suspension mechanism and the ferromagnetic material plate of the U-shaped track generate electromagnetic force. According to the invention, through the type selection design and rearrangement of the magnetic structure, the induction action area of the traction motor is increased, the traction capability of the motor is improved, the traction efficiency is improved, the energy consumption of the system is reduced, and the economical efficiency of the system is improved in a limited space under the vehicle.

The present application relates to a kind of railway widening roadbed through active fault method and system, belong to traffic engineering technical field, the method utilizes active fault rotation direction, average annual horizontal sliding rate and its included angle with the direction of railway line as parameter, calculates the displacement amount along the vertical line direction within the design annual use limit of railway, multiplied by design safety factor, obtains roadbed design widening value.The present application provides control basis for the determination of roadbed widening value when railway passes through active fault zone in the form of roadbed, guarantees the economy and safety of railway operation.

The invention discloses a track device which comprises a track plate, magnetic suspension traction faces are arranged at the bottoms of the two sides of the track plate in the width direction respectively, guide faces are arranged on the side portions of the two sides of the track plate in the width direction respectively, and sliding faces are arranged at the tops of the two sides of the track plate in the width direction respectively. Two parallel steel rails are further arranged at the top of the track plate, extend in the length direction of the track plate and are correspondingly located on the sides, away from the edge of the track plate, of the two sliding faces respectively. The maglev traction surface, the guide surface and the sliding surface are interfaces for the maglev train, so that the maglev train can run along the track plate; the steel rail is an interface for a railway train, so that the railway train runs along the track plate; the track plate can be a conventional maglev track plate and is simultaneously used for supporting a steel rail, the interface for the maglev train and the interface for the railway train do not interfere with each other, and collinear operation of the maglev train and the railway train can be realized, namely, the track device can be compatible with the maglev train and the railway train.

The utility model relates to the technical field of rail transit damping devices, and particularly discloses a rail transit rubber composite damper which comprises an upper metal plate, a rubber column and a lower metal plate, the two ends of the rubber column are connected with the upper metal plate and the lower metal plate respectively, and a threaded sleeve is arranged at the bottom of the rubber column. A through hole is formed in the position, corresponding to the threaded sleeve, of the lower metal plate, a plurality of annular mounting grooves are longitudinally distributed in the outer side wall of the rubber column, and a memory alloy wire is arranged in each layer of mounting groove and spirally wound in the axial direction of the rubber column. The multiple layers of memory alloy wires are arranged on the outer side of the rubber column and matched with an adjusting mechanism, the shock absorber can automatically adjust the shock absorption performance according to the train operation working condition, the train operation stability is improved, and the riding comfort of passengers is improved.