45results about How to "Increase tonnage" patented technology

A new method of improving the process of dewatering fine particulate materials is disclosed. In this method, an aqueous slurry of fine particles is treated with appropriate hydrophobizing reagents so that the particulate material becomes moderately hydrophobic with its water contact angle considerably below 90°. A low hydrophile-lipophile balance (HLB) number surfactant is then added to the slurry, so that the surfactant molecules adsorb on the moderately hydrophobic surface primarily by hydrophobic attraction and, thereby, increase its contact angle close to or above 90°. By virtue of the greatly enhanced hydrophobicity, the water molecules adhering to the surface are destabilized and removed more readily by a mechanical dewatering process. Any nonionic surfactant with its HLB number below about 15 may be used for the hydrophobicity enhancement. The surfactants may be used in conjunction with appropriate solvents such as light hydrocarbon oils and short-chain alcohols. The moisture reduction can be further improved by using appropriate electrolytes in conjunction with the low HLB surfactants, spraying surface tension lowering reagents onto the filter cake, subjecting the cake to a suitable vibratory means, and by using combinations thereof.

The invention relates to a large mechanical test system for a combined adjustable constraint concrete arch frame. The system comprises a monitoring system, a hollow cylindrical counter force structure, a hydraulic loading device and an auxiliary loading device, wherein the monitoring system is used for monitoring and collecting arch frame parameters and data. The inner cylindrical surface of the counter force structure is provided with multiple oil cylinder positioning holes, the hydraulic loading device is disposed in the oil cylinder positioning holes, the hydraulic loading device comprises a hydraulic oil cylinder arranged in the oil cylinder positioning holes, a force transmission dispersion device connected with the hydraulic oil cylinder and a control system, and the hydraulic oil cylinder achieves loading through contact of the force transmission dispersion device and an arch frame to be tested. By means of the system, a 1:1 mechanical test can be carried out on the constraint concrete arch frame and other conventional arch frames, and tests of arch frames of different sizes and shapes can be achieved.

The invention belongs to the technical field of forging and in particular relates to a method for forging a super-long hollow part through an oil pressing and forging machine. The method comprises the steps of heating a steel ingot, cutting and blanking through an oil press, upsetting, punching, chambering, drawing a core shaft, forging to form a finished product, annealing, roughly processing, tempering and finely processing to form the finished product. On the premise of not increasing equipment, the clamping moment problem of a free forging oil press and an operation machine can be solved by using a specific tooling and a unique forging method. According to the method disclosed by the invention, the tonnage for the free forging press to forge the steel ingot can be greatly increased; by using the method, a pipe casting die blank beyond the clamping moment of the free forging press can be successively forged; furthermore, the free forging operation machine cannot operate in overloading the forging process; and the forging capability of the equipment is greatly increased.

A process for producing a hollow billet for producing tubing for antifriction bearings includes massively reducing a bloom in a three-roll rotary piercing mill and subsequently piercing the reduced bloom in a three-roll rotary piercing mill. The reducing and piercing may be performed in one-pass through the three-roll rotary piercing mill. The reducing and piercing steps may also be performed in separate passes through the same mill or through two separate mills.

The invention discloses a staged energy-consuming metal damper. The staged energy-consuming metal damper comprises a first connecting plate and a second connecting plate which are arranged in parallel and opposite to each other, wherein at least one first energy-consuming straight steel plate and two second energy-consuming bent steel plates are further arranged between the first connecting plate and the second connecting plate, and the upper end and the lower end of the first energy-consuming straight steel plate are connected with the first connecting plate and the second connecting plate separately and vertically; the two second energy-consuming bent steel plates are symmetrically arranged at the left and right sides of the first energy-consuming straight steel plate in the length direction of the first energy-consuming straight steel plate, and the curved mouth of each second energy-consuming bent steel plate backs on to the first energy-consuming straight steel plate; the upper end and the lower end of each second energy-consuming bent steel plate are connected with the first connecting plate and the second connecting plate separately. According to the staged energy-consuming metal damper, a mode of combination of the shearing energy-consuming straight plate and the shearing U-shaped energy-consuming plate is adopted to form the staged yielding metal damper, and the staged energy-consuming metal damper has good staged yielding capability under small-scale and large-scale vibration; moreover, the staged energy-consuming metal damper has the advantages of being simple in structure, low in cost, convenient for part repairing and replacing and good in economic benefit.

The invention discloses a symmetric lifting rod for lifting and carrying tires. A cover plate is sleeved on a balance sleeve, the upper end of a cylinder holder is connected with the balance sleeve, the lower end of the cylinder holder is connected to an upper table top, pulling claws are hinged to the cylindrical holder, a telescopic rod is arranged in the cylindrical holder in a sliding mode, rotary blocks are hinged in the telescopic rod, a pressure spring is arranged between the two rotary blocks, a connecting block is connected with the telescopic rod, the lower end of the connecting block has a cambered surface, side plates are fixedly connected with the upper table top, scraping plates are hinged to the side plates, cylindrical sliding pins are fixed on the inner sides of the scraping plates and are attached to the cambered surface of the connecting block, an outer sleeve support is in pin joint with telescopic rod through a cylindrical guide pin, the cylindrical guide pin simultaneously penetrates through the guide grooves on the two side plates and slides, T-shaped grooves are formed on the outer sleeve support, two cylindrical stepped pins penetrate through the T-shaped grooves and are inserted into through holes on the lower parts of the two side plates, and a tension spring is connected with the two cylindrical stepped pins and tensions the two cylindrical stepped pins. By the symmetric lifting rod, the tires can be lifted stably and conveniently, the safety and efficiency are obviously improved.

The device comprises a plurality of deflector members (1) having a submerged lower face (2), called first face, generally fitting into the extension of the hull bottom (FC) of the ship, toward the rear thereof, while forming an angle (α) in relation to a general plane (Δ) tangent to this bottom (FC), characterized by the fact that these deflector members (1) are articulated to the hull and are juxtaposed side by side, over all, or practically all, the width of the stern, control means (4) making it possible to cause it to pivot in one direction or the other in order to vary said angle (α), these means being housed in part in a protective case.

A composite ceramic roller for hot rolling is made up of tungsten carbide, Co, Cr, Ni and zirconium oxide through proportioning, mixing, loading in mould, cold pressing, pre-sintering, vacuum pressure sintering and machining. It has high bending strength up to 2200-2500 Mpa, high hardness up to 75-85 HRA and high density up to 10-14 g/sq.cm. Its productivity is increased by 400 tons of single pass.

The invention discloses a combined and phased yield metal damper. The damper comprises an upper connecting plate (4) and a lower connecting plate (5). A first energy consumption steel board (1), second energy consumption steel boards (2), and third energy consumption steel boards (3) are fixedly arranged between the upper connecting plate (4) and the lower connecting plate (5). The first energy consumption steel board (1) is vertically arranged between the upper connecting plate (4) and the lower connecting plate (5) in order to bear the energy consumption effect under small vibration. The third energy consumption steel boards (3) are arranged on two sides of the first energy consumption steel board (1) and used for constraining the first energy consumption steel board (1) and supporting the effect of energy consumption at large vibration. The side wall of the first energy consumption steel board (1) between the two third energy consumption steel boards (3) is provided with the second energy consumption steel boards (2), as reinforcing ribs of the first energy consumption steel board (1), and used for supporting energy vibration at large vibration. The metal damper has good phased yield capacities at small and great vibration and capable of effectively improving tonnage of the damper and is conveniently constructed.

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 mesh machine with a feed table. The mesh machine comprises a driving device, a transmission device, a crankshaft, an upper tool holder, a lower tool holder, a side base, a frame and at least two link mechanisms, wherein the side base is arranged on one side of the frame; the frame comprises a left upright post, a right upright post, an upper beam and a lower beam; the upper beam is arranged at the upper parts of the left upright post and the right upright post; the lower beam is arranged at the lower parts of the left upright post and the right upright post; the driving device and the transmission device are arranged on the side base; the crankshaft is arranged below the upper beam; the driving device is in transmission connection with the crankshaft through the transmission device; the lower tool holder is arranged above the lower beam; the upper tool holder is arranged between the lower tool holder and the crankshaft, and is connected with the crankshaft through the link mechanisms; the mesh machine further comprises the feed table used for feeding a material to the mesh machine. The mesh machine has the advantages that the feed table moves in two directions, while the main body of the mesh machine only moves up and down, so that the tonnage of the whole structure can be improved, and steel mesh boards requiring larger shearing force can be machined conveniently.

The invention discloses a vertical linear motor assisted driving type super-deep well extra-large-tonnage skip hoisting system. The vertical linear motor assisted driving type super-deep well extra-large-tonnage skip hoisting system comprises a steel wire rope hoisting system, a linear motor assisted hoisting system and a control system. On the basis of an original steel wire rope hoisting system,an original cage guide structure is eliminated, an embedded linear guide rail is used for replacing a cage guide for functioning, a vertical moving type linear motor is mounted on a tower, a truss inthe well wall and a skip, and electromagnetic driving force generated through up-down linear movement of the linear motor is used for assisting in transporting of minerals; and an additionally-mounted linear motor assisted driving system works in cooperation with the steel wire rope hoisting system, so that on the premise of ensuring the structural strength of the hoisting system, the hoisting tonnage and the hoisting depth of the hoisting system are increased, and then the hoisting system meets the requirement of hoisting of the super-deep well extra-large-tonnage skip.

The invention discloses a calender. The calender comprises a frame, a cloth feeding device, a cloth guide roller, a cloth pressing device, a cooling device and a cloth discharge device are arranged on the frame, the cloth pressing device comprises a mirror heating roller, a cloth pressing end motor for driving the mirror heating roller to self-rotate around the mirror heating roller axis, a hydraulic homogenization roller and a cloth pressing end hydraulic cylinder for driving the hydraulic homogenization roller to lift or drop, the hydraulic homogenization roller is located above the mirror heating roller, the cloth pressing device also comprises a transmission mechanism, the transmission mechanism comprises a first gear link-connected to the mirror heating roller and a second gear in a link transmission relationship with the hydraulic homogenization roller, the first gear is engaged with the second gear, a metal detecting instrument and a rectification machine are arranged between the cloth feeding device and the cloth pressing device, and the cooling device is arranged between the cloth pressing device and the cloth discharge device. A cloth is fed by the cloth feeding device, goes through the cloth guide roller, enters into the hydraulic homogenization roller and the mirror heating roller of the cloth pressing device, is subjected to heating calendaring, then is cooled by the cooling device, then is fed into the cloth discharge device and is discharged.

The invention discloses an advanced geomechanical model test system. The system comprises a model test bench device system, a hydraulic loading system and a strain displacement test system. The modeltest bench device system comprises a bottom plate. A plurality of bottom plate cross beams are evenly arranged at the bottom of the bottom plate, a plurality of bottom plate cross beam connecting plates are evenly arranged at the bottoms of the bottom plate cross beams, bottom plate clamping plates are arranged on the side wall of the bottom plate, four stand columns are evenly arranged at the positions, close to the four corners, of the top of the bottom plate, and cross beam stand column connecting plates are fixedly connected to the tops of the stand columns. According to the invention, thestability simulation of the excavation process of underground geotechnical engineering such as tunnels (pits), underground engineering caverns and the like can be effectively completed, the anchor rod (cable) support can be simulated, the stress and displacement in the tunnel surrounding rock can be analyzed, the tunnel surrounding rock fracture can be studied, and the reinforcement measures canbe optimized.

The invention discloses a hydraulic machine and an application method thereof, belongs to the field of pressing machines, and aims to solve the problem of the pressure of a conventional hydraulic machine cannot be further improved due to the limit of oil cylinder volume. The hydraulic machine comprises a machine body, an oil cylinder, a sliding block and a worktable; the worktable is arranged on the lower side of the 'C'-shaped opening direction of the machine body; the hydraulic machine further comprises a beam arm and a guiding slideway; the beam arm is arranged at the top of the machine body; a second pin shaft hole and a fourth pin shaft hole are respectively formed in the two ends of the beam arm; an oil cylinder seat is arranged on the lower side at the opposite end of the 'C'-shaped opening direction of the machine body; one end of the oil cylinder is connected onto the oil cylinder seat through a first pin shaft, and the other end of the oil cylinder is connected onto the second pin shaft hole through a second pin shaft; one end of the sliding block is connected onto the fourth pin shaft hole through a fourth pin shaft, and the other end of the sliding block penetrates through the guiding slideway and faces and is perpendicular to the worktable. The bottleneck that the tonnage of the conventional hydraulic machine is limited by the oil cylinder volume is broken through, the pressure of the hydraulic machine is further increased, meanwhile, the production cost is not increased, the use is relatively flexible, and the production efficiency is improved.

The invention discloses a five-beam four-column type explosive pressing hydraulic machine comprising stand columns, upper cross beams, lower cross beams, upper sliding blocks, lower sliding blocks, amiddle fixing beam, an upper main oil cylinder, a lower main oil cylinder, upper side oil cylinders and lower side oil cylinders. A cylinder block of the upper main oil cylinder and cylinder blocks ofthe upper side oil cylinders are fixed to the upper cross beams. A plunger rod of the upper main oil cylinder and plunger rods of the upper side oil cylinders are fixed to the upper sliding blocks. Cylinder blocks of the lower main oil cylinder and the lower side oil cylinders are fixed to the lower cross beams. A plunger rod of the lower main oil cylinder and plunger rods of the lower side oil cylinders are fixed to the lower sliding blocks. The lower sliding blocks are provided with locating columns. The locating columns penetrate through the middle fixing beam. Through the arrangement of the upper main oil cylinder, the lower main oil cylinder, the upper side oil cylinders and the lower side oil cylinders, the tonnage of the five-beam four-column type explosive pressing hydraulic machine can be improved, and the development demand of the military industry is met.

The invention discloses a hoisting device and a hoisting method. The hoisting device comprises a body, a first hoisting lug group and a second hoisting lug group, and the first hoisting lug group is arranged on the upper end surface of the body and is used for being matched with hoisting hooks of more than two bridge cranes on a hoisting station; and the second hoisting lug group is arranged on the lower end face of the body and used for being matched with a hoisting point of a to-be-hoisted part so that the to-be-hoisted part can be vertically hoisted. The hoisting device can enable more than two bridge cranes to participate in hoisting at the same time, so that the hoisting tonnage of the cranes is increased; and in addition, the function of transferring the bridge cranes and the to-be-hoisted part is achieved, the hoisting hooks with the fixed positions of the bridge cranes is converted into a hoisting point matched with the to-be-hoisted part, the problem that the lifting point position of the to-be-hoisted part cannot meet the hoisting standard of two or more cranes is solved, under the limited hoisting condition on a hoisting station, the reliable and safe hoisting operation on large parts is completed, the application range of the bridge cranes in a construction site or a factory is enlarged, and the hoisting time is saved.