49results about How to "Reduce vertical load" patented technology

A drive control system for a vehicle includes a braking force control mechanism that controls braking forces on the wheels of the vehicle according to a braking operation, a steering characteristic control mechanism that varies the steering characteristic of the vehicle, a determination portion that determines whether an emergency steering operation is likely to de performed when hard braking is being applied, and a main control portion that controls the steering characteristic control mechanism so as to vary the steering characteristic of the vehicle to increase oversteering component of the vehicle if the determination portion determines that an emergency steering operation is likely to be performed.

The invention relates to a high strength steel frame-laminated corrugated steel sheet wall side-resistant cold-formed thin-walled steel structure and belongs to the field of structure engineering. Thehigh strength steel frame-laminated corrugated steel sheet wall side-resistant cold-formed thin-walled steel structure comprises rectangular high strength steel columns, I-shaped high strength steelbeams, connection angle steels, zigzag fish plates, fish plates, corrugated steel sheets, bolts, self-tapping screws, a thermal-insulation, damp-prevention and sound-insulation material, decorative wall boards, cold-formed thin-walled steel composite wall bodies and a profiled steel sheet composite floor, wherein the I-shaped high strength steel beams are arranged at web plates at the two ends andare connected with the corresponding connection angle steels on the corresponding rectangular high strength steel columns through bolts to form a high strength steel frame; and a laminated corrugatedsteel sheet wall is vertically arranged, the upper edge and the lower edge of the laminated corrugated steel sheet wall are connected with the corresponding zigzag fish plates through bolts, the right edge and the left edge of the laminated corrugated steel sheet wall are connected with the corresponding fish plates through bolts, and the high strength steel frame-laminated corrugated steel sheetwall side-resistant structure is formed. The high strength steel frame-laminated corrugated steel sheet wall side-resistant cold-formed thin-walled steel structure improves the deficiency of anti-seismic property of a traditional cold-formed thin-walled composite wall body, has the advantages of strong energy-dissipating capacity, capability of restoration after an earthquake and integration of functions of a structure and a building and can be widely applied to multi-layer building engineering.

The invention discloses a coupling beam damper based on a magneto-rheological elastomer material. The coupling beam damper comprises first H-shaped steel and second H-shaped steel, and further comprises a shock absorption device for connecting the first H-shaped steel and the second H-shaped steel. The inner end of the first H-shaped steel / second H-shaped steel is connected with the shock absorption device, and the outer end of the first H-shaped steel / second H-shaped steel is connected with a shear wall through joint plates. The shock absorption device comprises a plurality of steel clampingplates, excitation coils and magneto-rheological elastomer blocks. The plate surfaces of the steel clamping plates are vertical, and the steel clamping plates are transversely distributed at intervals. The excitation coils are longitudinally wound on the steel clamping plates at intervals and connected with an outer power supply through wires. The magneto-rheological elastomer blocks are arrangedin gaps between every two adjacent steel clamping plates at intervals. The coupling beam damper has the beneficial effects that the magneto-rheological elastomer material is adopted, the excitation coils are wound outside the steel clamping plates, the mechanical property of the magneto-rheological elastomer blocks can be changed by changing magnetic fields which are changed by changing excitationcurrents, and therefore the coupling beam damper can achieve semi-active control to achieve the better shock absorption effect.

The invention relates to an H-shaped steel load-bearing frame structure node, which belongs to the technical field of steel structures. Including H-shaped steel through-column, H-shaped steel beam, external assembly support and reinforced connection angle steel, column internal assembly support and reinforced connection angle steel, beam internal reinforced connection angle steel, beam-column internal reinforced connection sealing tube, external reinforced connection angle steel, Strengthen the connection angle steel and bolts in the column; the center of the H-shaped steel load-bearing frame structure is the H-shaped steel through-column, and the outside of the two flanges of the H-shaped steel through-column is installed with external assembly support and reinforced connection angle steel, and the surrounding H-shaped steel beams are directly placed and installed. A series of reinforcements are carried out with internally reinforced connecting angle steels, internally reinforced connecting end tubes for beams and columns, externally reinforced connecting angle steels, and internally reinforced connecting angle steels for columns. The invention has high node rigidity, high strength, and can well protect the node; adopts the upper and lower columns and a series of strengthening measures, and the stiffness and integrity are significantly improved; and no additional support is required during installation, which is fast, simple, and easy to use, which can shorten the construction period and reduce the cost.

A structure for preventing slippage of connecting bolts between a steel plate shear wall with a vertical seam and a frame beam. The upper and lower ends of the main steel plate with vertical seams are provided with bolt holes for connecting with the upper and lower frame beams, and the bolt holes at the corners of the upper and lower ends of the main steel plate with vertical seams are provided. The arrangement density and the number of rows are larger than those in the middle part; the edges of the main steel plates with vertical seams are stiffened to form a closed system. The present invention adopts a targeted layout form for the bolts connecting the steel plate shear wall with slits and the frame beam, and adopts a closed edge stiffening system at the same time, which overcomes or delays the occurrence of bolt slippage and eliminates the bolt slippage caused by bolt slippage. noise, and avoid the great loss of the good seismic performance of the steel plate shear wall with slots caused by the slippage of the bolts, to ensure that the steel plate shear walls with slots are fully bolted on site so that they can be disassembled and replaced after earthquake damage, and to avoid steel plates with seams Shear walls are subjected to excessive vertical loads. The closed edge stiffening system also solves the corner instability problem of the slotted steel plate shear wall that induces or aggravates bolt slippage.

The invention discloses a heat-preservation and decoration composite light PC peripheral enclosure wall and a manufacturing method thereof. The heat-preservation and decoration composite light PC peripheral enclosure wall comprises light aggregate concrete and a heat-preservation and decoration integrated plate fixedly connected with the light aggregate concrete through connecting pieces, whereinthe heat-preservation and decoration integrated plate comprises a decoration layer and a heat-preservation layer; the connecting pieces comprise the first connecting piece pre-buried in the heat-preservation and decoration integrated plate and the second connecting piece fixedly connected with a structural framework steel bar in the light aggregate concrete; the first connecting piece comprises abottom plate used for being fixedly pasted to the decoration layer, a hollow frame pre-buried in the heat-preservation layer and a right-angle hook used for being in hooked connection with the secondconnecting piece; and the second connecting piece comprises an arc hook and a connecting part fixed to the structural framework steel bar. According to the heat-preservation and decoration composite light PC peripheral enclosure wall and the manufacturing method thereof, facing treatment does not need to be conducted in the construction process, on-site wet operation is reduced, the labor and construction cost is saved, and decoration-heat-preservation-enclosure integration is achieved.

Wind turbine drive train with a nacelle (3) as much compact as possible in a tower (2) with a big diameter which allows to embed the generator (6) inside and reduce the loads in the supports (10) of the yaw system and in the tower (2). The mainframe (5) of the nacelle (3) has a triangular shape based on structural frames or ribs, taking profit of the big reaction arm with the most compact solution. The generator (6) is integrated in this mainframe (5) and partially crosses the connection piece (4) of the tower (2). The yaw system is made by individual supports in a continuous raceway and the traction elements provokes the rotation of the nacelle (3) around the tower (2) without the need of the usual geared pinion - zip systems, using pneumatic wheels (20) which roll by the raceway made by the rotation ring (9) with inverted T shape with one or two circular sections on the top of its profile.

The invention relates to a large gas-fired hot water boiler. The large gas-fired hot water boiler comprises a boiler body, combustors, a flue, a chimney, economizers, a water-cooling-type condenser, a second-stage air-type condenser and a first-stage air-type condenser, wherein one end of the boiler body is provided with the two combustors which are vertically arranged at an interval; the other end of the boiler body is provided with a smoke outlet and is connected with the flue in a sealed manner; the outlet of the flue is connected with the vertical chimney; two stages of economizers are sequentially arranged in the flue between the boiler body and the chimney; the water-cooling-type condenser, the second-stage air-type condenser and the first-stage air-type condenser are sequentially arranged on the chimney from bottom to top; and smoke in the boiler body is exhausted from the boiler body, sequentially passes through the two stages of economizers, the water-cooling-type condenser, the second-stage air-type condenser and the first-stage air-type condenser, and is finally exhausted through the upper end of the chimney. The large gas-fired hot water boiler has the advantages that the operation is stable; safety and reliability are ensured; the output is sufficient; the exhaust gas temperature is low; the efficiency is high; the smoke emission index meets the requirement; and the market development requirement is better met.

The invention relates to a water way circulation energy saving system of a gas-fired hot water boiler. The system comprises a furnace body, combustors, a flue, a chimney, an energy economizer and a water cooling type condenser, wherein two combustors are vertically spaced at one end of the furnace body; a smoke outlet is formed in the other end of the furnace body, and is tightly connected with the flue; an outlet of the flue is connected to the vertical chimney; the two-grade energy economizer is mounted in the flue between the furnace body and the chimney in sequence; and the water cooling type condenser is mounted on the chimney. The system is stable in operation, safe, reliable, sufficient in force, low in smoke discharge temperature and high in efficiency, reaches the smoke discharge index, and is more accordant with the market development demands.

The invention relates to a special shaped stone high-speed high-efficiency combined machining center with the functions of double five-axis linkage and synchronous cutting by double working heads, and relates to a device for processing stones. Active gantry structure is adopted in the machining center, the double-motor synchronous driving technology is adopted on the gantry beam, and synchronous high-speed driving is realized by the screw bar pair at the two sides; a milling working head component and a turning working head component are respectively arranged on the saddle of the beam, the vertical feeding mechanism thereof is formed by a suit of screw bar pair and a hydraulic pressure auxiliary mechanism; wherein, the milling working head can carry out rotation and scales division aroundthe axis B, and the turning working head facilitates the same servo motor to realize rotation and scale division of axis A and cutting movement; the turning working head and the milling working head are arranged alternately, and both the turning process and the grinding processing can be carried out on stone articles at the same time. The machining center is provided with a numerical control system with the function of double five-axis linkage, and horizontal five-axis linkage machining and vertical five-axis linkage machining can be realized.

The invention discloses a pipe burying structure capable of reducing pipe top vertical loads and a construction method for the pipe burying structure. The construction method comprises the steps of S1, digging a pipe groove and a backfill groove above the pipe groove and digging at least one step on two side walls of the backfill groove; S2, laying pipes in the pipe groove and completing port welding of the pipes; S3, filling earth in the pipe groove, and compacting and flattening the filled earth to the pipe top elevation; S4, laying a degradable material interlayer above the top of the pipe, wherein the degradable material interlayer is disposed below a transverse step plane of the lowest layer of steps; S5, filling earth into the backfill groove and compacting the earth. According to the pipe burying structure and the construction method for the pipe burying structure, an soil arch effect and backfill groove side wall friction can be used for obviously reducing the top pressure of the pipes, and the pipes are protected from being fractured and damaged. The construction process is simple, costs of used materials are low, and the construction method has a good application prospect and a wide generalization performance and applicable to open digging burying of underground shallow buried pipes.

The invention discloses an automatic weeding device based on the joint operation of a drone, which includes a drone, a connecting device, and a weeding mechanism. The weeding mechanism includes a processor, a driving device, a first navigation device, a repelling device, a roller blade, and wheels The first navigation device is connected with the processor and is used to set the walking route of the weeding mechanism, the expelling device is connected with the driving device, and is used to expel living things close to the weeding mechanism, and the roller blade is connected with the driving device through a transmission mechanism, and is used for cutting weeds. Grass, the wheels are connected to the driving device to drive the weeding mechanism to walk, the drone includes a first camera, a second camera and a second navigation device, the first camera is connected to the processor, and is used to shoot the picture below the drone and Send to the processor, the second camera is connected with the processor, and is used to take pictures above the UAV and send it to the processor, and the second navigation device is connected with the processor, and is used to set the flight route of the UAV.

The invention relates to a gas-fired hot water boiler air circulation energy saving system which comprises a boiler body, two burners, a flue, a chimney, energy savers, a water-cooling type condenser, a secondary air type condenser and a primary air type condenser, wherein the two burners arranged at intervals in an up-and-down manner are mounted at one end of the boiler body; a flue gas outlet is formed at the other end of the boiler body, and is in sealing connection with the flue; an outlet of the flue is connected to the upright chimney; the energy savers sequentially arranged in a two-stage manner are mounted in the flue between the boiler body and the chimney; the chimney is provided with the water-cooling type condenser, the secondary air type condenser and the primary air type condenser from bottom up sequentially; an air blower is communicated with and mounted at one side of the lower part of the chimney; and an exhaust outlet of the air blower is communicated with air inlets of the burners of the boiler body through sealed pipelines. The gas-fired hot water boiler air circulation energy saving system operates stably, is safe and reliable, has strong output, is high in efficiency and low in exhaust gas temperature, reaches flue gas emission indexes, and meets the requirements of market development better.

A thermal insulation and decoration composite lightweight PC outer enclosure wall and a manufacturing method thereof, comprising lightweight aggregate concrete and an integrated thermal insulation and decorative panel connected and fixed to the lightweight aggregate concrete through connectors, the integrated thermal insulation and decorative panel includes a decorative layer and an thermal insulation layer, the connectors include the first connector pre-embedded in the thermal insulation and decoration integrated panel and the second connector fixed to the structural skeleton reinforcement in the lightweight aggregate concrete, the first connector includes a The bottom plate, the hollow frame pre-embedded in the insulation layer, and the right-angle hook for hooking with the second connecting piece, the second connecting piece includes a circular arc hook and a connecting part fixed to the steel bar of the structural skeleton. The present invention does not need to carry out finishing treatment during the construction process, reduces on-site wet work, saves labor and construction costs, and realizes the integration of decoration-insulation-enclosure.

The invention relates to a structural part of a sanitation truck, in particular to a liftable sucker mechanism of a dust collection vehicle. The liftable sucker mechanism of the dust collection vehicle comprises ascending / descending drive mechanisms, a sucker body and an auxiliary walking mechanism; the ascending / descending drive mechanisms are mounted on a chassis beam, the drive ends of the ascending / descending drive mechanisms are arranged downwards and connected with the sucker body through connection pieces, the auxiliary walking mechanism is fixed to the chassis beam and located on the front side of the sucker body in the walking direction, and the sucker body is connected with the auxiliary walking mechanism. The liftable sucker mechanism of the dust collection vehicle has the advantages that the mechanism is simple in structure and convenient to operate and use, and the sucker device is hung flexibly, so that when the sucker meets a highly protruding obstacle, the collision force can be effectively buffered, collision force is dispersed to a large degree, the situation that the sucker is collided and damaged is avoided, good traction force is achieved, and stability of the sucker in the dust collection process is maintained.

The invention discloses a steel column concrete root deep water foundation structure and a construction method for the steel column concrete root deep water foundation structure. The steel column concrete root deep water foundation structure comprises an upper steel column and lower concrete roots, wherein the upper steel column is internally hollow, the diameter of the upper steel column is 3.2 mor above, and the bottom of the upper steel column goes deep to be below the local scour line of the seabed; and the lower concrete roots are provided at least three and of solid structures, the diameter of each lower concrete root is 0.8-2.5 m, and the lower concrete roots are arranged inside the upper steel column, the upper ends of the lower concrete roots are fixedly connected with the innerwall of the upper steel column through a first cushion cap, the first cushion cap is above the seabed surface, the lower end of the upper steel column is fixedly connected with the outer walls of thelower concrete roots through a bottom seal segment, and the bottom seal segment is formed by pouring concrete. The steel column concrete root deep water foundation structure is simple in constructionand reasonable in force bearing, has the excellent horizontal bearing capacity, further has the reliable vertical bearing capacity and gives full play to the mechanical properties and advantages of different materials, the use amount of basic materials is saved, the construction cost of deep-water foundation in harsh deep-sea environment is lowered, and the steel column concrete root deep water foundation structure and the construction method for the steel column concrete root deep water foundation structure are suitable for the marine engineering deep-water foundation with deep water and fastflow, long and high wave, severe scour and deep covering layers.