47results about How to "Large tonnage" patented technology

An anti-buckling supporting member with a lattice type double-rectangular-pipe cross section comprises two anti-buckling branches which are connected through a plurality of steel batten plates, wherein each branch adopts an anti-buckling supporting member provided with a linear core and a restraint concrete-filled rectangular steel pipe; long edges of the two branches are parallelly arranged at appropriate intervals, a lattice type member formed by connecting the plurality of steel batten plates which are distributed longitudinally is taken as a whole for common work, the steel batten plates and branch short edges, namely short edges of the restraint rectangular steel pipes, are in welded connection through trihedral angle welding seams; and end parts of the linear cross section cores of the two branches extend out of circumferential restraint members, and are connected through a ribbed plate to form an H-shaped cross section which can be connected with a frame member through a high-strength bolt and a connecting plate. The lattice type cross section can increase inertia moment of the whole cross section of the anti-buckling supporting member and the whole flexural rigidity, thereby particularly suitable for a design of a large-tonnage anti-buckling support member, the support end part is conveniently connected with the frame member, and the lower branch still can sufficiently play energy-dissipating capacity when eccentric bending moment is added.

The invention discloses a pre-stress spiral rib hollow grouting anchor rope which comprises an anchor rope body which stretches into a rock-soil drilling hole; the anchor rope body is formed by weaving and twisting a plurality of high-strength spiral rib pres-stress steel wires; a rope tool is fixedly connected with the rear end of the anchor rope body; a grouting core tube penetrates through the anchor rope body and the anchor tool; a support disc is sleeved on the anchor tool; a locking nut is screwed on the anchor tool at the rear end of the support disc; the locking nut props against the rear end face of the support disc; and a slurry stopping plug which aligns with the rock-soil drilling hole is sleeved at the rear end of the anchor rope body. According to the grouting anchor rope, by increasing the grouting pressure, while being filled into the drilling hole so as to realize the overall-length anchoring, slurry spreads into the rock fractures around the drilling hole at the same time, so that the bonding and curing functions to the surrounding rock are achieved, and the deep hole anchoring grouting is realized.

The invention belongs to the technical field of building equipment, and provides a detachable tower foundation. The main characteristics are that the tower foundation comprises a base seat and a beam; the base seat is a crossed channel steel base seat formed by a centre base seat and four side base seats connected with the four sides of the centre base seat; a support member is arranged in the base seat; a crossed steel beam in the same shape as the base seat is arranged on and fixedly connected with the base seat; and a tower-crane base seat is correspondingly arranged on the upper surface of the steel beam. Compared with the existing disposable tower foundation and the prior detachable power foundation, the invention has the advantages of easy mounting and detachment, convenient transportation, repeatable use, reduced building cost, and the like.

An anti-buckling supporting member provided with a lattice type three-circular-pipe cross section comprises three anti-buckling branches which are connected through batten pieces of inclined batten pipes, transverse batten pipes and the like as well as end ribbed plates, wherein each anti-buckling branch adopts an anti-buckling supporting member provided with a linear core and a concrete-filled restraint circular steel pipe; the three anti-buckling branches have the same sizes, are parallelly arranged to form a regular-triangle cross section, and are connected through the transverse batten pipes and the inclined batten pipes to form a lattice type member; and the transverse batten pipes and the inclined batten pipes are connected with the constraint circular steel pipes of the anti-buckling branches through intersecting weld. End parts of the linear core members of the three anti-buckling branches extend out of the circumferential constraint circular steel pipes, a ribbed plate is vertically welded at the externally extending section of each core, and the three ribbed plates are interested to the center of the regular triangle and welded to be a whole, so that end nodes of the anti-buckling supporting member are formed. The lattice type cross section facilitates improvement of the bearing efficiency of the anti-buckling supporting member, can remarkably reduce the weight of the member, and meets the design requirement of large-tonnage and ultra-long anti-buckling support in structures of a giant frame and the like.

The invention relates to a double-chamber hydragass spring which comprises an upper lug, a lower lug, a main cylinder, an elastic component, a back pressure cylinder, a piston, a guide pipe and the like, wherein the upper lug is positioned at the upper part of the main cylinder; the lower lug is positioned at the lower part of the back pressure cylinder, the upper lug and the main cylinder are connected through a thread structure, and the lower lug and the back pressure cylinder are connected through a thread structure; the upper lug and the lower lug are both provided with a bearing internally; the side part of the upper lug is connected with the elastic component; and the piston and the guide pipe are installed in the back pressure cylinder. The double-chamber hydragass spring is characterized in that the back pressure cylinder, the piston and the guide pipe are connected into a whole and installed in the cylinder body of the main cylinder; a main cavity is formed by a space among the upper surface of the piston, the main cylinder and the space below the upper lug; a main air chamber is formed by the main cavity, an elastic component oil liquid chamber of the elastic component and an air chamber; a back pressure air chamber is formed by a back pressure chamber in the back pressure cylinder and a ring chamber positioned between the main cylinder and the back pressure cylinder; the back pressure chamber and the ring chamber are connected through a connecting pipe. The double-chamber hydragass spring has the beneficial effects of simple structure, small size, light weight, good tightness and large bearing tonnage and is convenient to arrange and install.

The invention discloses a hydraulic lifting travelling crane. The hydraulic lifting travelling crane comprises a lifting cylinder and a travelling device, wherein the travelling device comprises a travelling crane frame and travelling wheels, the travelling crane frame is provided with a slide groove, the lifting cylinder is provided with an installation flange which is clamped in the slide groove and can move along the length direction of the slide groove, a horizontal cylinder is arranged at one side of the travelling device, the piston rod of the horizontal cylinder is hinged with the lifting cylinder, the horizontal cylinder and the lifting cylinder are connected with a manual reversing hydraulic system through pipelines, and when the manual reversing hydraulic system works, the lifting cylinder acts, the piston rod of the lifting cylinder stretches and withdraws so as to lift up or lay down heavy objects; the horizontal cylinder acts, the piston rod of the horizontal cylinder stretches and withdraws so as to push or pull the lifting cylinder, so that the lifting cylinder slides in the slide groove through the installation flange so as to horizontally reciprocate on the travelling crane frame. The lifting travelling crane can effectively prevent generation of electric spark, and is widely used in a coal mine, a gasoline station, a gas station and the like where combustible gas exists.

The invention relates to a method for manufacturing an aluminum-silicon target material. The method comprises the following steps of: providing an AlSi ingot casting step, a drawing step, a primary upsetting step, an intermediate heat treatment step, a secondary upsetting step, a preheating treatment step, a calendaring step and an annealing heat treatment process step, wherein cold drawing operation is used in the drawing step, and a forging ratio X1 in the cold drawing operation is gerater than or equal to 1 and less than 2; in the primary upsetting step, a forging ratio X2 is greater than or equal to 2 and smaller than 3, and cold heading operation is used for primary upsetting; in the intermediate heat treatment step: a product is kept within a first preset temperature range, and is quickly put into cold water after being subjected to heat preservation for first preset time; in the secondary upsetting step, a forging ratio X3 is greater than or equal to 2 and smaller than 3, and cold heading operation is used for secondary upsetting; in the calendaring step: multi-pass calendaring is performed on the product, and reducing rolling reduction along with increase of calendaring passes; and in the annealing heat treatment process step: in an annealing temperature range, heat preservation is performed for third time, and water cooling treatment is performed to form a final targetproduct. According to the method, the forging ratio is reasonably controlled, water cooling is adopted for cooling, so that Si element precipitation is reduced, and therefore the microstructure and the machining performance of the target material are guaranteed.

A latticed anti-buckling supporting member provided with double T-shaped cores is formed by connecting two anti-buckling branches through a plurality of steel lattice plates respectively, wherein each anti-buckling branch supporting member adopts a T-shaped core member and a rectangular restrained concrete filled steel tube; long edges of the two branches are arranged in parallel at an appropriate interval, the latticed member is formed by connecting a plurality of longitudinally distributed steel lattice plates, the steel lattice plates are in welded connection with short edges of the branches through trihedral fillet welds, and the edge of the branches are the short edges of the rectangular restrained steel tubes. Ends of the two T-shaped core members extend out of the rectangular restrained steel tubes, and a ribbed plate is welded between outwards extending plates of the two cores, so that an H-shaped section is formed and can be connected with a frame member through a high-strength bolt and a connecting plate. The latticed section can increase the inertia moment of a whole section of the anti-buckling supporting member and the whole anti-bending stiffness and is particularly suitable for the design of a large-tonnage anti-buckling supporting member, a supporting end and the frame member are conveniently connected, and the energy-consuming capacity of the branches can be fully exerted under the action of an additional eccentric bending moment.

A floating-in-liquid ball grinding is composed of a material drum with material feeding and discharging openings and air inlet and outlet, driven system for driving said material drum, and open liquid pool containing liquid in which the part or all of material drum is floating. Its advantages are high grinding efficiency, low electric consumption and cost, and simple structure.

The invention relates to a combined adjustable three-dimensional loading test system suitable for steel concrete components with different sizes and shapes. The combined adjustable three-dimensional loading test system comprises an assembly type base. The assembly type base is provided with a concentric-square-shaped structure I which can move in the left-right direction of the assembly type base,three concentric-square-shaped structures II are arranged inside the concentric-square-shaped structure I, the concentric-square-shaped structure II located in the middle is fixed, and the concentric-square-shaped structures II located on the two sides are driven by pushing cylinders to move in the front-rear direction of the assembly type base. A space enclosed by the three concentric-square-shaped structures II is internally provided with a lifting test platform, and the concentric-square-shaped structure I is provided with a rear loading cylinder for loading the rear part of the steel concrete components, and the concentric-square-shaped structures II are provided with side part loading cylinders for loading the side parts of the steel concrete components and upper part loading cylinders for loading the tops of the steel concrete components; and the loading cylinders are pushed and fixed by pushing and fixing devices.

The invention provides a method for transporting a heavy prefabricated arch bridge assembled box girder in a remote area. The method comprises the following steps of a, providing two heavy low-gravity-center transport vehicles; b, building two steel rails extending from a starting place to a destination in parallel; c, synchronously installing two transport vehicles on the two steel rails; d, installing a winch on the fixed base at the destination, and connecting a steel wire rope to the two transport vehicles; e, placing the prefabricated arch bridge assembled box girder on the two transportvehicles through a jack; and f, starting the winch, using the steel wire rope to pull the two transport vehicles to synchronously move on the two steel rails, and transporting the prefabricated arch bridge assembled box girder to the destination. By using the method, manufacturing cost is low, installation is easy, and a transportation tonnage is large. The method is suitable for construction in remote areas, little in environmental damage, high in practicability, obvious in economic benefit and the like. Detaching is easy after a component is used.

The invention discloses a double-layer piston type tensile and compression tensionmeter which is composed of a cylinder body, a piston, grease, a top cover and a fluid pressure sensor. The tensionmeter is characterized in that the cylinder is composed of a cylinder and a cylinder bottom member; the cylinder body is internally provided with an interval which forms cylinder cavities communicated with each other up and down; the T-shaped piston is of an upper-lower connecting structure; the cylinder is provided with a sealed oil duct so that upper and down annular pressure cavities are communicated with each other; a protruded portion and top cover of the lower piston are provided with central threaded holes respectively, and can be connected with upper pulling force rings in a threaded way via the central threaded holes, thus, serve as the tensionmeter; the fluid pressure sensor generates an electric signal and sends the electric signal to a data collector via a signal line, and a pulling force value is calculated; and after that a movable bearing cylinder is mounted in the central threaded hole of the top cover, the tensionmeter can be directly mounted between a pressure object anda pressed object to measure the pressure value.

The invention relates to a duplex toggle link mechanical press. The press comprises a frame, two eccentric gears with the same teeth and mode number, two sets of left and right toggle link mechanisms consisting of two identical connecting rod branched chains, and a punch hammer, wherein the frame is connected with the punch hammer through the two sets of identical left and right toggle link mechanisms; the left and right toggle link mechanisms are symmetrically distributed on two sides of the frame; the eccentric gears in the left and right toggle link mechanisms are engaged with each other; the eccentric gear of each set of toggle link mechanism is connected with the frame through a revolute pair; the eccentric gears are connected with connecting rods through the revolute pair; the connecting rod, an upper toggle link and a lower toggle link are connected to the same part through the revolute pair; the upper toggle link is connected with the frame through the revolute pair; the lower toggle link is connected with the punch hammer through the revolute pair; and the punch hammer is positioned in a fixed guide rail and is connected with the frame through a sliding pair. The two sets of identical toggle link mechanisms are simultaneously driven by a high-power fixed rotating speed motor, so that the punch hammer has the operating characteristics of high efficiency, large tonnage and flexibility.

The invention discloses a transfer system for ships or large components, which comprises a walking guide rail laid on the ground of a site, multiple ship moving trolleys arranged on the walking guide rails and used for jacking and moving ships or large components, a power unit vehicle connected with the ship moving trolley and providing power for the ship moving trolley, and an operation table used for controlling the actions of the ship moving trolley and the power unit vehicle through a master control PLC. The invention discloses a transfer method based on the transfer system. The whole ship can be safely, reliably and conveniently transferred.

The invention provides an electric transmission six-shaft rail tractor which comprises a tractor frame, three-shaft bogies are arranged on the lower portions of the two ends of the tractor frame, a traction motor is arranged in the middle of the lower portion of the tractor frame, and the traction motor outputs from the two ends and is connected with the inputs of the three-shaft bogies through transmission shafts I to drive the three-shaft bogies to walk; a cab is arranged in the middle of the upper portion of the vehicle frame, a machine room I is arranged at one end of the upper portion of the vehicle frame, a machine room II is arranged at the other end of the upper portion of the vehicle frame, and diesel generator sets and heat dissipation devices are arranged in the machine room I and the machine room II respectively. A diesel tank is arranged in the machine room I. A rectifying device is arranged in the machine room II. The diesel tank is communicated with the diesel generator set to supply oil to the diesel generator set. Current generated by the diesel generator set is integrated through the rectifying device and then supplied to the traction motor. The invention relates to the electric transmission traction rail car, which adopts a traction motor for double-end output driving and a three-axle bogie for six-axle driving, has the characteristics of large adhesion traction force and low cost, and is suitable for goods transportation of industrial and mining enterprises and stations.