301 results about "Joint working" patented technology

A heat exchange system for use in operating equipment having a plurality of subsystems in each of which a common working fluid is utilized to provide selected operations in that subsystem with a reservoir containing at least some of the common working fluid and has both a supply system and a return system connected between the reservoir and each of the plurality of subsystems through which any common working fluid in the reservoir can be conveyed. An airstream heat exchanger is provided connected in one of the supply and return systems so as to have the common working fluid conveyed therethrough cooled at selectively variable rates in the airstreams passing thereby during at least some such uses of the operating equipment.

The invention provides a tunnel double upper sidewall heading construction method. When a tunnel is excavated, the cross section of the tunnel is divided into a first heading, a second heading and an upper core soil; a No.1 lower step and a No.2 lower step are excavated in different time; and a boundary of the first heading and the No.1 lower step, and a boundary of the second heading and the No.2 lower step are springing lines. The method has the advantages that: the cross section of the tunnel is divided into an upper part and a lower part by taking the springing line as a boundary, wherein the upper part is constructed by an improved double sidewall heading method; the tunnel with a large section is divided into a left heading and a right heading to be constructed one after another immediately, and the core soil is excavated by sloping, so that the excavation section span is reduced and the supporting effect of the core soil is achieved; and the lower part is divided into a left part and a right part to be constructed one after another; an invert arch and a filler course are constructed timely; and the secondary linings of an arch wall and an arch crown are constructed finally so as to enter a common working condition together with surrounding rock and primary supports.

The invention relates to an electric hydraulic steering device for a commercial vehicle and belongs to the field of automobile power-assisted steering gears. The electric hydraulic steering device is composed of a recirculating ball steering gear, an intermediate shaft, a spindle, a worm gear, a worm, a sensor, a supporting seat, a motor and a controller, an intermediate shell is fixedly mounted on one side of a connecting valve of the recirculating ball steering gear through a connecting screw, the spindle is mounted in the intermediate shell through a bearing A, one end of the spindle is connected with an input shaft key of the recirculating ball steering gear while the other end of the same extends to the outer end of the intermediate shell, the intermediate shaft is movably mounted on the spindle in the intermediate shell in a sleeving manner and connected with a steering screw of the recirculating ball steering gear. When a vehicle runs normally, the motor and hydraulic power assistance work jointly, so that hydraulic power assistance needed during steering is reduced and the objective of saving energy is achieved; an electronic control unit (ECU) does not provide or provides small electric power assistance according to vehicle speed signals at a high speed, so that requirements on driving stability and safety are met.

The invention relates to a wheel-legged robot chassis suspension device. The wheel-legged robot chassis suspension device comprises a wheel type moving driving mechanism, a wheel type moving mechanism, a leg type traveling mechanism, a leg type traveling driving mechanism and a steering mechanism; the wheel type moving mechanism and the leg type traveling mechanism share three pairs of wheels, each wheel is respectively connected with the wheel type moving mechanism and the leg type traveling mechanism through a tire steering base arranged on the corresponding wheel, an angle sensor is arranged on the upper side of a hub of each wheel, and the phase difference between the angle sensors installed on every two adjacent hubs is 180 degrees; the wheel type moving driving mechanism and the leg type traveling driving mechanism are independent from each other and arranged at the two ends of a wheel-legged robot chassis respectively. Compared with the prior art, the wheel-legged robot chassis suspension device combines a leg type mechanism and a wheel type mechanism, integrates the advantages of the leg type mechanism and the wheel type mechanism, is good in obstacle crossing performance, adaptability and stability, achieves a cushioning effect, and does not need to be adjusted by means of an addition control mechanism; the leg type mechanism and the wheel type mechanism coordinate to work together, the speed is high, maneuverability is good, and control is simple.

A method for reinforcing the concrete member by prestress includes such steps as calculating prestress and the torsion force of jack, installing supporting angle steel and jack, applying prestress, fixing, and detaching jack. Its advantages are high reinforcing effect on increasing total bearing power, high correctness of prestress, and easy control.

The invention discloses an aero-engine gas path component health diagnosis method based on particle filtering. The aero-engine gas path component health diagnosis method includes the steps that a nonlinear mathematical model of an engine is established; a particle filtering algorithm is designed based on significance weight value adjustment of a neural network; finally, a gas path component health diagnosis is achieved based on the nonlinear model of the engine by the adoption of the designed algorithm. The nonlinear mode is that on the basis of a physical equation reflecting the aerothermodynamics performance of the engine, a shared working equation set among the components is established, and by the adoption of a Newton Laphson interactive algorithm, the nonlinear equation set is solved to obtain working parameters of the cross section of the engine; the particle filtering algorithm based on the significance weight value adjustment of the neural network is that a BP neural network algorithm and a typical sampling algorithm are combined, on the basis of a standard particle filtering algorithm, two steps of weight value splitting and particle adjustment are added, and therefore the phenomena of particle degradation and sample depletion are effectively avoided. The health diagnosis of gradual performance degradation and sudden faults of the gas path components within the service life of the engine can be achieved.

The invention relates to a method for reinforcing a brick-concrete structure by utilizing an angle steel frame, belonging to the anti-earthquake reinforcement field. According to the method disclosed by the invention, a reliably connected steel frame formed by double-angle steel can replace a ring beam and a structural column, and field bolt assembly connection through factory pre-fabricated components can be realized, thus the safe, environment-friendly and green construction is realized; simultaneously, angle steel, a wall and a pre-fabricated floor slab are connected by bolts and epoxy resin, and the double-angle steel is also can be used as a round hole plate end part support, so that the connection reliability of the pre-fabricated floor slab and the wall is ensured, double functions of the ring beam and a supporting beam are exerted, reinforcement workload and cost are saved, and the original structure and reinforcement components mutually and cooperatively work. According to the method for reinforcing the brick-concrete structure by utilizing the angle steel frame, disclosed by the invention, the binding-type reinforcement construction speed is fast, and the reinforcement construction is safer, so that the method is very suitable for residential buildings.

The invention discloses an orthorhombic three-freedom joint with relatively high integration driven by pneumatic artificial muscles. The orthorhombic three-freedom joint comprises a hooke joint mechanism consisting of an X-axis bracket, a Y-axis bracket and a cross shaft, wherein an Z-axis bracket is arranged on the top of the Y-axis bracket; a steering mechanism is arranged on the Z-axis bracket; a tail end performer is arranged on the top of the Z-axis bracket; artificial muscles are arranged at one sides of the steering mechanism, the X-axis mechanism and the Y-axis mechanism; ends of the artificial muscles are connected with the bracket through a nut, and the other ends of the artificial muscles are connected with a transmission rope; the transmission rope is vertically nested on the tail end performer and the shaft shoulder of the cross shaft through the steering mechanism. The orthorhombic three-freedom joint realizes three-freedom orthogonality, simplifies motion equation, improves the control speed, strengthens the joint flexibility and expands joint working sace.

The invention discloses a soil layer sedimentation tester and a test method thereof. The tester comprises three parts namely an experiment device, a pressure loading device and a measurement device, wherein a transparent inner cylinder and an outer cylinder are arranged on a base; a water inlet is formed in the upper part of the outer cylinder; a water outlet is formed in the lower part of the outer cylinder; water leak holes are formed in the wall of the inner cylinder; a top plate is arranged at the upper part of the inner cylinder; a jack is arranged at the upper part of a reaction frame; a dial gauge is mounted at the end part of a dial gauge bracket; the three parts are combined closely and work together. The invention discloses the soil layer sedimentation tester for measuring soil layer sedimentation under the influence of underground water periodic variation and the test method of the tester; the weight stress on the soil layer is simulated through controlling the external load on the soil layer and the periodic variation of underground water level is simulated through controlling the variation of water level between the inner cylinder and the outer cylinder, so that the soil layer sedimentation rule formed under the influence of underground water periodic variation is obtained.

The invention relates to a multi-propeller wind driven generator which is an energy-collection wind driven generator which is powered by joint forces generated by the working of a plurality of wind propellers and can generate electricity by using a multi-stage transmission mechanism to transmit the joint forces to a rotator in the generator. The generator enhances the wind power quality and improves conversion and utilization rate of wind energy in a joint working way in the situation of small wind force and is superior to the traditional wind driven generator. The wind driven generator is characterized in that the frame of the wind driven generator is a multi-layer frame type; more than two wind propeller sets are evenly distributed on the crossbeam of the frame; the frame, the crossbeam and an inner end are arranged on turntables of each layer; and a drawbench (pull rod) is arranged at an outer end and used for adjusting direction along with wind direction. More than one row of wind propeller set is arranged as required to greatly improve the windward area of the wind propellers and improve the power of generating. The wind driven generator has simple structure, flexible running and reliable working and no environment pollution generated during the development and utilization and is convenient to the utilization of wind energy which is a clean energy.

The invention discloses a fabricated thin-walled cold-formed steel combined damping wall. A thin-walled cold-formed steel wall framework is a rectangular framework system formed by upper and lower U-shaped horizontal guide rails, H-shaped vertical side columns and a C-shaped vertical center column. Each energy-dissipation damping unit is a diagonal supporting system formed by a self-reset damper,a steel pull rod, a cylindrical rotating clamp and a retaining bolt. The two systems are connected into a whole through anti-pulling connection parts and operate jointly. A wall panel and the thin-walled cold-formed steel wall framework are connected through tapping screws, and the thin-walled cold-formed steel wall framework, the energy-dissipation damping units, a rock wool thermal insulating layer and the wall panel form the fabricated thin-walled cold-formed steel combined damping wall jointly. The fabricated thin-walled cold-formed steel combined damping wall integrates stress, damping, thermal insulation and fire prevention and is simple in structure, convenient to construct, high in performance, practicality and economy and suitable for industrial production and has a promising market prospect.

The invention discloses an on-site concrete shear wall structure with a permanent heat insulation formwork and a construction process of the on-site concrete shear wall structure. The cross section of the shear wall structure comprises an inner side permanent heat insulation formwork layer, an outer side permanent heat insulation formwork layer and a reinforced concrete structure layer; and the permanent heat insulation formwork is composed of a high-performance fiber reinforced concrete layer and a light concrete heat insulation layer. The construction process includes precasting a welding steel rack with the permanent heat insulation formwork, mounting on site, pouring concrete and constructing the heat insulation layers and the shear wall structure synchronously. The permanent heat insulation formwork plays the role of both the heat insulation layer and the formwork, is taken as one part of the structure to work with the others, and is beneficial to saving of a large quantity of construction formworks; construction efficiency is improved; and the on-site concrete shear wall structure is a novel assembly integrated structure with combination of structure, heat insulation and formworks. By the technical scheme, service life of the structure is as the same as that of building heat insulation; problems of firmness and durability of the connection between the heat insulation layers and the structure are completely achieved; the structure is beneficial to engineering quality guaranteeing, construction period saving and construction cost reducing; and development in building industry is promoted.

The invention discloses a pile top supporting walking type moving piling platform which comprises a pile top ejecting and positioning device fixed to the top of a steel pipe pile. A bearing platform is fixed to the pile top ejecting and positioning device. An operation platform is fixed to the bearing platform. A large bent frame guide frame is fixed to the front part of the operation platform. Two small bent frame guide frames are fixed to the left side and the right side of the bearing platform respectively. Installation platforms are fixed to the positions, corresponding to the steel pipe pile, of the front side and the rear side of the bearing platform. Walking-type ejecting forward moving of the pile top supporting walking type moving piling platform is achieved through a three-directional jack of the pile top ejecting and positioning device. The steel pipe pile can be quickly and accurately positioned through the cooperative work of a lifting adjusting device, the three-dimensional jack, the large bent frame guide frame and the small bent frame guide frames, construction of the steel pipe pile in the whole platform range can be achieved through transverse moving of the guide frames, and assembling and disassembling of the pile top ejecting and positioning device and subsequent pile top construction can be quickly achieved through the installation platforms.

The invention discloses an assembled integral type masonry wall assembling structure and a construction method thereof, and belongs to the field of building walls and construction. The assembled integral type masonry wall assembling structure consists of prefabricated masonry walls, reinforced concrete construction columns and a cast-in-situ ring beam floor, and is characterized in that combed joints are reserved at an end of each prefabricated masonry wall; reinforcing steel bars are placed in the combed joints between each two adjacent walls and are concreted to form the reinforced concrete construction columns; cast-in-situ ring beams are arranged on the upper portions of the walls; the adjacent walls are connected to one another through the reinforced concrete construction columns and cooperate through the ring beams; the walls are prefabricated in a factory and are hoisted in field; wet construction amount of field construction is reduced; construction speed is increased greatly; a construction period is shortened; and requirements of building industrialization are met. The construction method comprises the following steps of hoisting the prefabricated masonry walls in place; placing the reinforcing steel bars in the combed joints of the adjacent walls; erecting pole shuttering and concreting to form the reinforced concrete construction columns; erecting the ring beams and a slab form; pouring the upper reinforced concrete ring beams and the floor; and maintaining and protecting.

The invention discloses high-ductility fiber concrete and a construction method for reinforcing a beam by using the high-ductility fiber concrete. The concrete is prepared from cement, coal ash, limestone powder, water, common riversand, a water reducing agent and PVA fibers. The construction method comprises the following steps: chiseling away a bottom reinforcement protective cover of an original concrete beam to enable load-bearing rebars to be exposed, welding added load-bearing main rebars to original load-bearing main rebars through short rebars, and then pouring the high-ductility fiber concrete to the surface. The construction method aims to solve the problem that the existing reinforcement construction technological method is low in operability. By the use of the mechanical property of the high-ductility fiber concrete as well as high joint work performance and integrality of an added structure and an original structure which are reinforced, the bearing capacity of the original concrete beam can be substantially improved; the reinforcement process is simple, the construction is convenient and quick, and the added section is relatively small in size; the high-ductility fiber concrete is safe in structure and relatively high in applicability.

The present invention provides a Web based unified communication system and method, and Web based communication manger. In the present invention, generating a SMIL document, based on a communication request from a terminal, for starting and controlling a communication session between the terminal and corresponding terminals, and controlling the terminals and communication channels involved in the communication session to work collectively so as to perform the communication session by interpreting and executing the SMIL document. In the invention, instead of being a kind of supplementation, the Web technique should become the core technique of such systems. Further, in the invention, terminal may be a set of user devices, the set of user devices includes one or more devices, each of said devices provides media interaction capabilities for one or more communication channels, and each of said devices is mapped to one or more media objects in said SMIL document. Therefore, various devices may work collectively to perform a communication session.

The invention provides a node connection method for a circular steel tube concrete column and a reinforced concrete shear wall, and belongs to the field of a building structure. By the method, the problem that when connected, the conventional connected circular steel tube concrete column and reinforced concrete wall cannot work synergically can be solved. The method comprises the following steps of: welding a connection steel plate on the connecting part of the circular steel tube concrete column with the reinforced concrete shear wall; welding a shearing resistant connection member in the connection plate; arranging a U-shaped horizontally distributed reinforcing steel bar at the end of the reinforced concrete shear wall; and casting concrete to make the shearing resistant connection member, the connection steel plate and the U-shaped reinforcing steel bar and concrete at the end of the reinforced concrete shear wall work together and stressed synergically. By the method, the bearingcapacity and the energy consumption capability of the structural system can be improved, so the breakage of the structure under the action of rare load can be avoided. During construction, no weldingworking capacity is provided, the convenient and quick construction is ensured, and the method has better economic benefit.

The invention relates to a U-shaped precast concrete shell with inner ribs, which is mainly used for manufacturing a reinforced concrete beam. A hoping and a protective layer of the reinforced concrete beam are manufactured into a precast U-shaped shell which is not only used as a construction plank of the reinforced concrete beam, but also used as part of the structure to participate the joint work so as to be beneficial to saving a great amount of construction templates and workload thereof, improving the construction efficiency, lightening the labor force, realizing the cross operation, decreasing the construction cost, ensuring the building quality, saving resources and energy sources, protecting the environment and promoting the industrialized building development. The manufacture method of the U-shaped precast concrete shell adopts a rapid molding method, not only has simple manufacture and thin wall, but also can ensure the precast shell can be reliably bond and jointly work with post-cast core concrete by the inner ribs of the shell. In addition, the manufacture method of the U-shaped precast concrete shell can satisfy the thin-wall requirements and ensures that the protective layer thickness of the reinforced concrete beam main rib is the protective layer thickness of standard specifications.

The utility model relates to a multifunctional bridge shock-absorbing and isolating support, which is composed of upper and lower parts. The upper part is composed of PTFE plate sliding bearings, which can realize the free expansion and displacement of the main beam structure under conventional loads, and thus have all the characteristics of conventional sliding bearings. The lower part is a combined shock-absorbing and isolating device with multi-level shock-absorbing and isolating functions, which is composed of a lead rubber pad in the middle part and an elastic-plastic energy-dissipating soft steel plate in the peripheral part. A lead core is arranged in the middle of the lead core rubber pad. Under earthquake action, lead rubber pads and elastic-plastic energy-dissipating steel plates are used to jointly dissipate energy to effectively limit the relative displacement between beams and piers. A rigid connection is made between the sliding support of the polytetrafluoroethylene plate and the combined shock-absorbing and isolating device to ensure the joint work of the upper and lower parts of the device. With the worldwide emphasis on the anti-seismic fortification of engineering structures and the continuous development of the economic level, this new type of bridge anti-seismic bearing will have a wide range of engineering application prospects.

The invention discloses a composite beam comprising a steel beam with concrete at the abdomen. The composite beam comprises a steel beam (1) and a floor plate (7), wherein the concrete (5) is poured at the abdomen of the steel beam (1); the outer wall of the concrete (5) is flush with the outer sides of an upper flange and a lower flange of the steel beam (1); a steel reinforcement cage (4) is embedded at the abdomen of the steel beam (1); an abdomen shearing force connecting piece (3) is welded at the abdomen of the steel beam (1); reliable bonding and joint working of the concrete at the abdomen of the steel beam and the steel beam (1) are ensured through the abdomen shearing force connecting piece (3); outer shearing force connecting pieces (2) are welded at the outer side of the upper flange of the steel beam (1); and combination and joint working of the steel beam (1) and the floor plate (7) are realized through the outer shearing force connecting pieces (2). Compared with the prior art, the combination with the floor plate is taken into account, the whole bearing capacity and rigidity are improved, the section height of a member is decreased, and the building clearance is increased, so that the economic performance is greatly improved.

A heat sink for LED bulbs includes a base having male threads engaged with a socket connected to a power and female threads engaged with male threads of a base connector. The base connector has a chamber co-working with a chamber of a lamp casing to accommodate a controller, and locking projections to fix the lamp casing. The lamp casing is formed as a trumpet, having plural positioning projections and an outer surface coated with a heat dispersing paint to scatter heat created by LED bulbs. A heat conducting plate is placed in a top circumference of the lamp casing, interlocked with the positioning projections. A circuit board has a positioning hole locked upward by a bar of the heat conducting plate, with LED bulbs laid on the circuit board. A bulb hood is capped on the lamp casing.

Automobile brake drum automatic circulation cooling system and control method, characterized in that: the rotating water inlet and outlet device (1 ) as well as water pumps and water pipes to circulate the coolant in the water jacket brake drum and the coolant in the brake radiator, and use sensors, controllers, and manual switches to work together to control manually or automatically, so as to reduce brake pressure. Drum temperature purpose.

The invention discloses a permanent shuttering cast-in-place extra light concrete self-insulation composite wall body and construction technology. The cross section comprises an inner side permanent shuttering layer, an outer side permanent shuttering layer, a welded reinforcement net rack and a cast-in-place extra light concrete layer, and wherein the permanent shuttering is manufactured of fiber-reinforced high-performance concrete. The construction technology is that prefabricating the welded reinforcement net rack and the permanent shuttering, mounting in onsite mode, placing extra light concrete, and forming a self-insulation composite wall body. The permanent shuttering not only serves as the shuttering, but also serves as a part of the structure to join common work, facilitates saving of a lot of construction shuttering, improves construction efficiency, and is a novel assembling integral type wall body structure which integrates structure, thermal insulation and shuttering into a whole. Technique applying the permanent shuttering cast-in-place extra light concrete self-insulation composite wall body and construction technology can achieve identical service life of building thermal insulation and structure, completely solves the problems of connection firmness and durability of thermal insulation layers and structural layers, facilitates engineering quality guarantee, saves engineering period, lowers cost, and promotes development of building industrialization.

A gear production apparatus for producing a gear from a blank includes a base, a first stock slidable along a longitudinal axis of the base and including a first tool rotatably supported thereon and a second stock slidable along a first transverse axis of the base and including a second tool rotatably supported thereon. A blank retainer rotatably supports and selectively drives the blank about a first rotational axis. The first stock slides along the longitudinal axis to engage the first tool with the blank and to form rough teeth in the blank. The second stock slides along the transverse axis to engage the first tool with the blank, which rotatably drives the second tool to operate on the blank.