15results about How to "Increase vertical stiffness" patented technology

The utility model discloses an annular spring composite conical rubber two-stage variable-stiffness vibration double-control support which comprises a horizontal vibration isolation support body, a longitudinal vibration isolation support body and a transverse vibration isolation support body. The vertical vibration isolation support comprises a support upper connecting unit and a support lower connecting unit, the lower part of the support is connected with a unit; the double-stage variable-stiffness vertical vibration isolation unit comprises upper inner ring spring composite conical rubber, lower inner ring spring composite conical rubber and an outer ring spring, and the upper inner ring spring composite conical rubber and the lower inner ring spring composite conical rubber are partially embedded into the outer ring spring from the upper portion and the lower portion respectively. When the two-stage variable-stiffness vertical vibration isolation unit is subjected to first-stage vertical loading, the vibration isolation unit has first-stage vertical stiffness, when the two-stage variable-stiffness vertical vibration isolation unit is subjected to second-stage vertical loading, the vibration isolation unit has second-stage vertical stiffness, and the first-stage vertical stiffness is smaller than the second-stage vertical stiffness. According to the double-order variable-stiffness vertical vibration isolation device, the vertical vibration effect and the horizontal earthquake effect can be isolated at the same time, meanwhile, double-order variable-stiffness vertical vibration control is achieved by means of the combined vibration isolation units of the annular springs and the conical rubber, and the vibration isolation effect is remarkably improved.

The application provides a vehicle. It belongs to the technical field of vehicles. The vehicle comprises a vehicle body frame, which comprises: a frame beam body having a first side facing the inside of the vehicle body and a second side facing the outside of the vehicle body, the frame beam body being formed with a groove recessed towards the second side; a first reinforcing column at least partially filling the first side of the groove of the frame beam body; a connecting piece, at least part of the connecting piece being arranged in the first reinforcing column along the inside-outside direction of the vehicle body and connected with the first reinforcing column; a door hinge connected with a door; and a fastening assembly comprising a first fastener and a second fastener, the door hinge being connected with the connecting piece through the first fastener and the second fastener. Thus, the vertical rigidity of the door can be improved.

The utility model relates to tool room building structure technical field, and disclose a kind of roof beam eave structure of tool room, including the first plate body and second plate body being connected with each other, the second plate body is equipped with recess, top end portion is equipped on the first plate body, its top end portion has the profile form that can guide top load to both sides dispersion conduction, and the first plate body and the second plate body with recess form the overall framework of collaborative stress, the first plate body and second plate body cooperation structure are connected with the connecting structure of tool room board assembly, the utility model is dispersed by the profile form of top end portion on the first plate body to guide top load, in combination with the deformation buffer of second plate body recess, form collaborative stress framework, effectively reduce local stress concentration, its support plate enhances vertical rigidity, double support plate symmetric distribution and open space design improve load dispersion and buffer capacity, and the joint plate strengthens the inclination end cooperativity, slot realizes board fast and stable assembly, adaptive modularization builds demand.

This invention provides a seismic isolation bearing, comprising an upper cover plate and a lower cover plate arranged parallel to each other. An upper connecting plate is fixedly attached to the bottom surface of the upper cover plate, and a lower connecting plate is fixedly attached to the top surface of the lower cover plate. Steel plates and rubber sheets are stacked and spaced apart between the upper and lower connecting plates. The bearing also includes a cylindrical friction damper disposed between the upper and lower cover plates. The cylindrical friction dampers are symmetrically distributed on the outer sides of the steel plates and rubber sheets, with the line connecting the centers of the upper and lower cover plates as the centerline. Both ends of the cylindrical friction damper are connected to the upper and lower cover plates via universal joints. The solution provided by this invention can improve the functionality, reliability, and safety of the seismic isolation structure, and increase vibration reduction efficiency.

The utility model discloses a buffer rubber sleeve for a bogie of a passenger train, which comprises a rubber sleeve main body, and a rigid spring is mounted in the middle of the rubber sleeve main body. According to the buffer rubber sleeve, the rigid spring is additionally arranged in the middle of the rubber, the vertical rigidity of the buffer rubber sleeve is increased, the transverse rigidity of the buffer rubber sleeve is increased, high compression of a product after being assembled is effectively guaranteed, the problem that installation is affected due to size creep reduction after a pure rubber part is used for a long time can be solved, and the service life of the buffer rubber sleeve is prolonged.

The invention provides a prestressed pipe jacking device which comprises a steel sleeve and a plurality of steel sleeves, the steel sleeve comprises a plurality of transverse steel sleeves and a plurality of vertical steel sleeves, each transverse steel sleeve comprises a plurality of pipe joints, the transverse steel sleeves are arranged in parallel, and the vertical steel sleeves are perpendicular to the transverse steel sleeves; the counter-force base is fixed on the ground, and the counter-force base is connected with the transverse steel sleeve and the vertical steel sleeve; and the connecting mechanism is connected with the plurality of pipe joints, and is used for connecting the pipe joints with the counter-force base. The connecting mechanism comprises a steel strand, and the bending resistance of the pipe jacking structure is improved by applying prestress to the steel strand. The prestressed steel strand and the steel sleeve are connected into a whole through the steel plate component, the dead weight of the whole structure is reduced, concrete is prevented from being pulled and cracked, the bending resistance is further improved, and the longer pipe jacking length can be achieved.

This invention discloses a prefabricated steel-concrete composite bridge structure for use in high-altitude and cold regions, relating to the field of bridge structure technology. The technical solution includes a bridge deck with side beams inside. Each side beam has a drainage cavity. A water-passing filter plate is fixedly connected to the upper part of the drainage cavity. A pressure block is slidably connected to the upper part of the side beam near the water-passing filter plate. A second rack is fixedly connected to the bottom of the pressure block. The second rack is meshed with a first gear. The first gear is fixedly connected to a second gear, which in turn meshes with the first rack. In this invention, the drainage cavity effectively drains melted snow water into the drainage trough through a pipe, effectively preventing the accumulation of melted snow water in high-altitude and cold regions. When a vehicle passes over the side beam, the wheel presses down on the pressure block, causing the second rack to move. This movement of the second rack causes the first rack to move, impacting one side of the water-passing filter plate and causing it to vibrate, dislodging sand and gravel adhering to the filter holes on the surface of the water-passing filter plate.

The application discloses a kind of strain design method of realizing conical spring rubber layer in limited space, which is in the case where the outer diameter of outer sleeve is fixed, the radial width of annular end is extended towards the central axis of conical spring to ensure the machining of end screw hole, and then the gap between the inner periphery of outer sleeve and the outermost layer of spacer sleeve is increased to realize the equal strain design of multiple rubber bodies between outer sleeve, mandrel and multiple spacer sleeves after vulcanization forming.The design method of the application can ensure that the annular end of the outer sleeve of the conical spring has enough space for machining end screw hole in limited space, and ensure that each rubber body realizes equal strain state when the product is under pressure, so that the conical spring can avoid frequent cracks and damage of rubber body during use, avoid premature failure of rubber body, thereby improving the service life and performance of the product.

The invention discloses an underground station vibration reduction foundation and a construction method thereof, and relates to the technical field of tunnel vibration reduction construction. Comprising a tunnel segment, a steel pipe pile and a counter-force mechanism, a pile pressing hole is formed in the bottom of the tunnel segment, the steel pipe pile is suitable for being installed and penetrating through the pile pressing hole, the bottom of the steel pipe pile extends to the lower end to enter a stratum below the bottom of the tunnel segment, and the upper end of the steel pipe pile is connected into the tunnel segment and connected with the counter-force mechanism; the counter-force mechanism is suitable for pressing the steel pipe pile into the stratum below the tunnel. The counter-force mechanism comprises an anchor rod, a counter-force steel framework and a jack, the anchor rod is installed in the tunnel segment, the top of the steel pipe pile is connected with the jack, and the counter-force steel framework is installed on a ballast bed of the tunnel segment; an electric hoist is mounted at the top of the jack, and the output end of the electric hoist is suitable for being connected with the jack; anchor rods are mounted on the two sides of the steel pipe pile; the anchor rod is suitable for being inserted into a ballast bed and a tunnel segment. The technical problem of how to improve the vibration reduction performance of the subway tunnel is solved.

The invention discloses a novel continuous supporting floating rail type vibration reduction fastener system which comprises a rubber wedge buckled and pressed at a rail waist, a plurality of mass rods are arranged in the rubber wedge, and the mass rods are parallel to the main stress direction of the rubber wedge under transverse load and perpendicular to the main stress direction of the rubber wedge under vertical load. The mass rod is filled with particles. The fastener system is based on the technology combining the particle damping technology and the vulcanization mass rod, vibration of the steel rail can be reduced, the influence of noise on the environment along the rail can be reduced, the transverse rigidity can be increased, steel rail corrugation can be restrained, meanwhile, particle damping can play a role in energy absorption in a wide frequency band, and the service life of the steel rail is prolonged. The floating rail fastener is greatly improved on the basis of a traditional floating rail fastener.

The invention discloses a static and dynamic load control system and method for a ground-anchored space cable three-tower suspension bridge. The system comprises a ground-anchored space cable three-tower suspension bridge and a static and dynamic load control unit arranged on the ground-anchored space cable three-tower suspension bridge; the ground-anchored space cable three-tower suspension bridge comprises a main beam, a middle tower, side towers, transition piers, anchorages arranged on the main beam, and a spatial linear main cable arranged on the anchorage and the main beam; the static and dynamic load control unit comprises a shock-absorbing and energy-absorbing longitudinal limiting support arranged between the middle tower and a transverse connecting box on the main beam along the longitudinal bridge direction, a shock-absorbing and energy-absorbing wind-resistant support respectively arranged between the middle tower and the side tower and a steel box beam on the main beam along the transverse bridge direction, and a vertical support arranged at the junction of the transition pier and the steel box beam on the main beam; the flutter and wind-resistant stability of the whole bridge is improved by the spatial linear main cable; the longitudinal energy absorption capacity of the bridge is improved by the shock-absorbing and energy-absorbing longitudinal limiting support; and the transverse shock-absorbing capacity of the bridge is improved by the shock-absorbing and energy-absorbing wind-resistant support.

The present application relates to the technical field of vehicle body structure, and particularly refers to a vehicle body structure with reinforced IBC mounting part and a processing method. The vehicle body structure comprises a front wall assembly, the front wall assembly comprises a front wall, a reinforcing plate and a reinforcing beam which are all arranged on the rear side of the front wall, the reinforcing beam is vertically fixed in the middle region of the front wall to form a cavity beam structure with the front wall; the reinforcing plate comprises a fitting part which is fixedly attached to the IBC mounting plate, and a reinforcing part which is integrally connected to the fitting part, the fitting part is provided with a mounting hole group for mounting IBC corresponding to the IBC mounting plate, the reinforcing part surrounds the fitting part and is fixedly attached to the front wall to form a cavity beam structure with the front wall, and is used for transmitting load to the front wall, and the opposite sides of the reinforcing part and the reinforcing beam are fixedly attached to the front wall in a laminated manner. The longitudinal and vertical strength of the front wall can be improved by the reinforcing beam, the cavity beam structure is formed between the reinforcing plate surrounding the IBC mounting part and the front wall, the load of the IBC can be dispersed to the reinforcing part and the front wall to suppress shaking during driving.

The present invention relates to an embedded connection structure and connection method of a vertical light steel keel, wherein an embedded connection structure of a vertical light steel keel comprises a vertical keel and a transverse keel perpendicular to each other, and a connecting buckle for connecting the vertical keel and the transverse keel, wherein the front part of the connecting buckle is fixed in a notch of the vertical keel, and the rear part of the connecting buckle extends backwards through two curling edges of the vertical keel to the notch of the transverse keel, and the connecting buckle is fixed to the transverse keel. The present invention realizes reliable connection between the transverse and vertical keels without setting a mounting component on the outer side of the keel flange through the setting of the connecting buckle, and effectively solves the problem of surface flatness of the keel and the outer covering plate; the connecting buckle can be inserted into the vertical keel and the transverse keel to realize the vertical splicing of the light steel keel, and the structure is simple and the installation is convenient; a C-shaped light steel keel bent plate is set inside the connecting buckle, which increases the vertical stiffness of the connecting buckle and improves the bearing capacity of the connecting structure.

The application provides a reinforced railway turnout bonding insulation joint clamp plate and a manufacturing method thereof. The clamp plate comprises a clamp plate body, one side of the clamp plate body is a working surface, and the other side is a non-working surface. The working surface is similar to a fish tail space of a steel rail. The non-working surface is provided with a clamp plate reinforcing rib. The clamp plate reinforcing rib comprises upper and lower transverse reinforcing ribs and a vertical reinforcing rib which is connected to the upper and lower transverse reinforcing ribs from a midpoint. The non-working surface is also provided with a clamp plate top surface which has an L-shaped structure at the top and an inner recess interference structure at the bottom. The inner recess interference structure is arranged on the left and right sides of the lower transverse reinforcing rib. A plurality of clamp plate bolt through holes are symmetrically arranged along the longitudinal center line of the clamp plate body. The through hole position is coincided with the joint hole position of the steel rail which is matched with the clamp plate. The application improves the fatigue performance, eliminates the interference hidden danger in the field laying, has good universality, and guarantees the stability and safety of train driving. The manufacturing method adopts a rolling process, and the material utilization rate is not less than 90%. The method has good machinability and processability.

The invention discloses a large-stroke inertial sensor horizontal inclination decoupling device based on magnetic suspension, which comprises a magnetic suspension mounting seat, a magnetic suspension lower platform is arranged on the magnetic suspension mounting seat, and a magnetic suspension upper platform is arranged above the magnetic suspension lower platform. A guide device for enabling the magnetic levitation lower platform and the magnetic levitation upper platform to linearly move is arranged between the magnetic levitation lower platform and the magnetic levitation upper platform; a sensor is arranged above the magnetic suspension upper platform; the flexible hinge assembly is directly or indirectly connected with the upper magnetic levitation platform, and the length direction of the flexible hinge assembly and the moving direction of the lower magnetic levitation platform and the upper magnetic levitation platform are both in the left-right direction. The invention discloses a structure for reducing a horizontal tilt coupling problem of an inertial sensor at a low frequency, and aims to effectively alleviate the coupling problem of the inertial sensor caused by horizontal tilt in a low-frequency environment.