81results about How to "Reduce lateral stiffness" patented technology

The invention discloses a rail engineering truck steering frame belonging to the field of rail vehicle steering frames. Aiming at the defects of large turning radius and incapability of meeting the low-speed operation working conditions of the traditional rail engineering truck, the steering frame comprises an H-type frame, ATP (Array Transform Processor) induction coil devices arranged at end parts of two lateral beams of the frame, rim lubricating devices arranged at two ends of a locomotive, a primary suspension device, a secondary suspension device, a third rail current collector arranged at the middles of the lateral beams of the frame, a basic brake device transversely arranged on the lateral beams of the frame, and a traction device connected with the frame by adopting a full-suspension manner; and a gear box is hung on a cross beam of the frame and is internally provided with two stages of gear transmissions with total transmission ratio of (7.63-10.03):1. The rail engineering truck steering frame has the highest operation speed of 90km/h, the continuous speed of about 18km/h and the lowest operation speed of below 5km/h and has the advantages of small turning radius, high low limit, simpler structure, convenience for maintenance and high reliability.

The air spring vibrating isolation base with the magnetic suspension unit includes the: the basal body, a group of air spring, the air feed system, the high controlling system, many magnetic suspension units, the low stiffness righting device. The input of the air feed system and the high controlling system are connected with each other. The output of the high controlling system is connected with every air spring; the magnetic suspension unit is connected to the air feed system. The magnetic suspension and the air spring are connected under the basal body in series to support it; the side of the basal body is installed with the low rigidity righting device. The invention can be proper for the super high air spring isolation base in the condition of not changing the bearing ability of the vibration separation system.

The invention discloses a concrete filled steel tube row column shear wall with a structural steel support and a manufacturing method thereof. The shear wall comprises prefabricated concrete filled steel tubular columns arranged at certain intervals, structural steel supporting components, sleeve connecting components for connecting structural steel and concrete filled steel tubes, concrete poured into a wall space in a filling mode, and steel bar nets which are used for preventing early cracking of the concrete and arranged on two sides of a wall body in advance. The shear wall gives full play to the good axial compressive performance of the concrete filled steel tubular columns. The rigidity of the wall body is increased due to addition of the structural steel supporting components. A rubber pad layer is arranged in each sleeve connecting component, so that partial damage at the joints of the concrete filled steel tubular columns and the supporting components is reduced to a certain extent. Bulging of steel tubes is restrained due to the hooping function of sleeves to the concrete filled steel tubes, and the three layers of defenses including the concrete, the structural steel support and the concrete filled steel tubes are formed. The combined shear wall has high bearing capacity and a good anti-seismic property, most of the components are prefabricated components and are convenient to splice after being conveyed to a construction site, and work time is saved.

The invention discloses an air spring vibration isolation base with gas lubricating unit, which is characterized by the following: comprising base (5), a group of air spring (4), air feed system (1), height controlled system (2), a plurality of gas lubricating unit (3)and erection device with low rigidity; connecting the air feed system (1)to the inputting end of the height controlled system (2); connecting the outputting end of the height controlled system (2)to each air spring (4)separately; connecting the gas lubricating unit (3)to the air feed system (1)directly; cascading the gas lubricating unit (3)and the air spring (4); assembling under the base (5)to support the base; layouting erection device (6)with low hardness at the lateral of the base (5). This invention is fit for super air spring vibration isolation base.

The invention relates to a main girder slide die carrier system and a construction method of cable-stayed bridges, with steps as follows: when the construction 0^# segment is finished, a bailey truss sliding die carrier is extended, which is divided into three groups that respectively move forward to next row of supporting piers; a construction segment bottom die is dragged to place; a fore-fulcrum elevation of the die carrier is adjusted; suspenders are stretched ahead; segmental steel bars and prestressing tendons are bound; segmental concrete is poured; segmental pre-stressing tendons are stretched; the die carrier is down adjusted; the bottom die is moved forward to next segmental place; and the steps are repeated. The invention has the advantages that by using the stress system of front supporting and back cable staying, one part of load has transferred to a cast girder segment, and the other part is borne by temporary piers, stressing is definite, calculation is easy, working condition is unified, and main girder linear adjustment control is convenient. The invention is applicable not only to concrete connecting girders and T-frames, but also to cable-stayed bridges with various cross-sectional shapes, achieves single cable plane, small transverse stiffness, wide flange plate cross section main girder, and whole section global casting, saves labor and materials, enjoys a short construction period and standardized construction, and is stable, safe and reliable.

A first aspect of the present invention relates to a diaphragm (2) for sealing an access opening (5) of a container body (6), the diaphragm being semi-rigid and formed with a shaped cavity (10). The present invention is particularly (but not exclusively) suitable for use with metal cans for packaging foodstuffs. A second aspect of the present invention relates to a reinforcing support (14) for locating over the diaphragm when used to seal an access opening of a container body. A third aspect of the present invention relates to a spoon (26) suitable for use with a container comprising the diaphragm.

The invention discloses an elastic supporting and vibration isolating device of a ship pipeline system. The device comprises three functional components including a pipe clamp vulcanization component,two low-frequency vibration isolating components and a limiting component; the pipe clamp vulcanization component comprises an upper hoop-type pipe clamp and a lower hoop-type pipe clamp; an upper lining is arranged on the inner wall of the upper pipe clamp; a lower lining is arranged on the inner wall of the lower pipe clamp; the two low-frequency vibration isolating components are fixedly mounted on two sides of the lower pipe clamp in a lifting manner; and each low-frequency vibration isolating component comprises a middle connecting arc plate, a low-frequency vibration absorbing rubber block, a vibration absorber base and a protecting cover. The device adopts the double-layer vibration isolating structure, the low-frequency vibration isolating components adopt 30-60-degree cut vibration absorbing rubber, the rigidity in the vertical direction, the transvers direction and the longitudinal direction is reduced, the three-dimensional equal rigidity is realized, and the vibration isolating effect is good. The whole vibration isolating device is compact in structure and is convenient and easy to mount and maintain. The device is particularly applicable to application occasions of ships having relatively high noise and environmental adaptation requirements.

The present invention relates to railway goods transporter, and is especially one bogie for railway goods train. The bogie for railway goods train includes one wheel pair, one framework, one swing bolster, one suspension device and one foundation brake rigging. The foundation brake rigging includes brake disk mounted on the shaft of the wheel pair, braking cylinder and clamp, and has brake block and clamp assembly installed on the framework. The present invention features the two stage suspension including the first stage suspension of composite metal fluid rubber spring and locating axle box and in the position between the framework and the wheel pair axle box, and the second stage suspension of rubber-metal pad between the framework and the swing bolster. There are also one longitudinal drawing unit, one transverse damping device and one automatic empty weight vehicle regulator. The bogie has small axle weight, high speed, good braking performance, and can raise the vehicle stability and safety.

The invention belongs to the technical field of constructional engineering, and in particular relates to a four-side connected circular hole combined steel plate shear wall, which consists of a filled-in steel plate, precast concrete slabs, frame structural members and connecting plates. The precast concrete slabs are positioned on two sides of the filled-in steel plate, and the upper end and the lower end of the filled-in steel plate are connected with the framework structural members through the connecting plates; the middle area of the filled-in steel plate is evenly distributed with circular holes, the precast concrete slabs are evenly distributed with bolt holes corresponding to the circular holes, and bolts sequentially pass through the bolt holes and the circular holes so as to make the filled-in steel plate connected with the precast concrete slabs arranged on the two sides of the filled-in steel plate; and the occupied area of the circular holes is 15 to 20 percent of the total area of the filled-in steel plate. In the invention, the four-side connected wall body is supported outside the surface by construction measures, thereby ensuring that the outside of a plane of the wall body is stable and the filled-in steel plate can effectively consume energy in violent shake. The shear wall can be widely applied in a multi-layer steel structure and a steel-concrete combined structure.

The invention relates to a friction-varying hanging-type shock-absorption bogie. The friction-varying hanging-type shock-absorption bogie comprises wheel sets, side frames, bearing components, hanging-type friction-varying shock absorbers, a swing bolster and a brake system, wherein each hanging-type friction-varying shock absorber comprises a shock absorber shell, springs, a threaded lifting rod, a support plate and nuts; the hanging-type friction-varying shock absorbers are suspended on the side frames by the threaded lifting rods and the nuts; the threaded lifting rods penetrate through the shock absorber shells and the support plates in sequence; two ends of each threaded lifting rod are matched with the nuts; the springs are installed between the shock absorber shells and the support plates. According to the invention, not only can the shock-absorption friction matched with an empty vehicle and low dead weight capacity be provided, but also the shock-absorption friction matched with other dead weight capacity also can be provided; the hanging-type friction-varying shock absorbers are installed with pre-compression amount, and as the increase of dead weight capacity, the spring compression amount also increases; a hanging-type structure is adopted by the bogie, and the compression amount and the horizontal rigidity for bearing steel springs decrease, so that the horizontal force between wheel rails is lowered, the wheel rim abrasion is alleviated, and the bogie can smoothly pass by a curve line.

The invention provides a conical spring stiffness adjusting method. A conical spring comprises an outer sleeve, a rubber body and a mandrel. The rubber body is vulcanized between the outer sleeve and the mandrel. A flange is arranged outside the lower end of the mandrel. A partition plate is arranged in the rubber body, when the lower end of the inner rubber body between the mandrel and the partition plate moves downwards, the inner rubber body bears dual restraints of the flange and the partition plate, and therefore the vertical stiffness of the conical spring is improved. The vertically distributed partition plate is arranged in the rubber body, so that when the lower end of the inner rubber body between the mandrel and the partition plate moves downwards, an outward convex arc section and an outward convex linear section are gradually attached to the upper surface of the flange and are limited in a space defined by the outer side of the mandrel, the upper surface of the flange and the inner side of the partition plate, so that the vertical stiffness of the conical spring can be greatly improved. The vertically distributed three-section type partition plate is arranged in the rubber body, so that the nonlinearity of the vertical stiffness of the conical spring is improved, and the transverse stiffness of the conical spring is improved.

The invention discloses a foam steel board shear wall structure. The foam steel board shear wall structure comprises steel beams and steel columns, wherein the steel beams and the steel columns are connected through beam column joints; foam steel boards are installed between the adjacent steel beams and the adjacent steel columns to form a shear wall steel board; the two sides of the foam steel boards are connected with the steel beams through horizontal angle iron; the two sides of the foam steel boards are connected with the steel columns through vertical angle iron; the foam steel boards and the horizontal angle steel are fastened and connected through transversely distributed vertical bolts; the horizontal angle steel and the steel beams are connected through transversely distributed parallel bolts; the foam steel boards and the vertical angle steel are connected through vertically distributed perpendicular bolts; the vertical angle steel and the steel columns are connected through vertically distributed parallel bolts. The foam steel board shear wall structure can overcome the defects of an ordinary steel board shear wall, can be prevented from buckling failure, and has the advantages of being large in lateral rigidity, good in anti-seismic property, high in ductility, full in energy consumption hysteresis hoop and the like.

The invention discloses a wooden frame energy-consuming wall body of an ancient building. The wooden frame energy-consuming wall body comprises a left wooden pillar and a right wooden pillar; the bottoms of the left wooden pillar and the right wooden pillar are connected with a ground sill through pillar base stones to be supported; a top wooden beam is arranged at the tops of the left wooden pillar and the right wooden pillar; the left wooden pillar, the right wooden pillar, the ground sill and the top wooden beam form an energy-consuming wall body supporting frame; an energy-consuming wall body main framework comprising an energy-consuming wall body outer frame and an energy-consuming wall body inner frame is arranged in the energy-consuming wall body supporting frame; shroud plates are attached onto the two sides of the energy-consuming wall body main framework; the energy-consuming wall body main framework and the shroud plates jointly form the wooden frame energy-consuming wall body of the ancient building; the wooden frame energy-consuming wall body of the ancient building is connected with the energy-saving wall body supporting frame through a bolt. The wooden frame energy-consuming wall body disclosed by the invention is smaller in lateral resistance stiffness and high in ductility and energy consumption capacity, and the structural seismic capacity and the reliability are improved. The wooden frame energy-consuming wall body is simple in structure, low in cost, convenient to construct, easy to operate and good in concealed property, can be embedded in an outsourced brick wall and can also be decorated or beautified on the outer surfaces of the shroud plate. The wooden frame energy-consuming wall body is wide in application prospect and can be used for attending the repair job of the ancient building.

A mechanical attachment for a two-stage, bi-directional shift lever vibration isolator. A shift lever has a sleeve which receives thereinside a lever vibration isolator which includes a damping body having an outer surface characterized by an hour-glass cross-section; an attachment housing within the damping body; and upper and lower washers connected to the housing. An attachment bore passes laterally through the housing and is lined by a layer of the damping body. The attachment bore is disposed in the center of recessed surfaces of the hour-glass cross-section. An attachment pin passes through the attachment bore and the sleeve. The shift lever vibration isolator is freely slidable on the attachment pin, facilitated by a clearance between the attachment pin and the bore lining layer.

A pneumatic tire has a unidirectional tread pattern. On each side of the tire equator, there are a circumferential groove and main oblique grooves extending form the tread edge to the circumferential groove while inclining to the intended tire rotational direction and gradually decreasing its inclination angle with respect to the tire circumferential direction. The inclination angle of the main oblique groove measured at the tread edge is 60 to 120 degrees. The width of the main oblique groove is gradually increased toward the axially outside from the circumferential groove. The width of the circumferential groove becomes narrower at heel-side ends of shoulder blocks than at toe-side ends of the shoulder blocks. The shoulder block is provided with an auxiliary oblique groove extending from the main oblique groove toward the intended tire rotational direction and terminating without reaching to the next main oblique groove.

The invention provides a masonry structure-based isolated structure, which comprises a building blocks layer and an isolated layer in vertical alternating arrangement, wherein the building block layer comprises an upper reinforcement mortar layer, building blocks, and a lower reinforcement mortar layer; and the isolated layer is located between the adjacent two building block layers. The whole isolated structure is arranged between a foundation top surface and the superstructure, thus, the structure can bear most of deformation of the whole building under the action of earthquake so as to ensure safety and reliability of the superstructure. The building block layer only generates horizontal rigid motion at the time of suffering the earthquake; and the isolated layer arranged between a foundation top surface and the superstructure generates horizontal shearing deformation, which restrains the horizontal motion of the building block layer, thereby having isolating function and limit effect. The invention has the advantages of reasonable structure, simple construction and lower cost of construction, can effectively improve shock absorption and disaster prevention capacity of brickworking houses, obviously improves the isolated capacity of the brickworking houses based on the non-change traditional construction method and particularly is applied by being matched with brickworking buildings.