63results about How to "Guaranteed production cycle" patented technology

The invention relates to a buckling-restrained brace member, in particular to a combined steel pipe-encased concrete type buckling-restrained brace member. The invention solves the problems that the processing cost of the in-line brace inner core in the existing buckling-restrained brace member is high, the reliable low-cycle fatigue performance cannot be ensured, the cast-in-situ construction and the vibrating construction of mortar or concrete are apt to cause special soft material plates to be displaced and non-binder material plates to be locally damaged, and the production cycle is long. Technical scheme one: the in-line brace inner core and two first backing plates are clamped between two rectangular steel pipes filled with mortar or concrete blocks, each first backing plate is respectively and fixedly connected with outer walls which face to the two rectangular steel pipes and each backing plate is fixedly connected with an external restraining member; and technical scheme two: the in-line brace inner core and third backing plates are clamped between two rectangular steel pipes filled with mortar or concrete blocks, and the third backing plates are connected with pairs of bolt seats through a plurality of bolts. The combined steel pipe-encased concrete type buckling-restrained brace member can be used in the side force resisting component in the field of building structure engineering.

A high-power variable frequency motor insulation bearing sleeve comprises a motor shaft, a bearing, a bearing inner cap, a bearing outer cap, an oil baffle ring and a baffle ring, wherein an insulation sleeve is arranged out of the bearing. The high-power variable frequency motor insulation bearing sleeve is characterized in that the insulation sleeve comprises an inner insulation spacer arranged between the bearing and the bearing inner cap, an outer insulation spacer arranged between the bearing and the bearing outer cap, a rear end cap arranged out of the bearing, and a gap insulation strip and a glass fiber insulation layer arranged between the rear end cover and a bearing seat. Three insulation strips are respectively arranged on the left side, the right side and the outer circle of the bearing, can effectively cut off a loop of a motor shaft current, and prevent the motor shaft current from forming a current loop through a motor bearing end cap and a motor base to destroy bearing balls, raceway surface roughness and oil film, and furthermore the bearing is protected. In addition, the insulation strips are simple in structure, convenient to manufacture, low in cost, and convenient to replace, and therefore manufacturing cost of a motor is reduced, and production cycles of motor forming products are guaranteed.

The invention provides a highly-efficient composite cage bar motor rotor. The highly-efficient composite cage bar motor rotor comprises a rotor, and is characterized in that the rotor comprises a set of rotor punching sheets, inner and outer squirrel cage slots are formed in the rotor punching sheets; inner squirrel cage bars are inserted in the inner squirrel cage slots; a silicon aluminum outer squirrel cage which comprises outer squirrel cage bars and an end ring is cast in the outer squirrel cage slots once; the end ring comprises blades and balance columns; two ends of each of the inner squirrel cage bars and the outer squirrel cage bars are connected with the end ring integrally. The highly-efficient composite cage bar motor rotor disclosed by the invention is reasonable and simple in structure, scientific and advanced; when the highly-efficient motor rotor of high-speed pressed copper-aluminum double-squirrel cage composite cage bars is started, the starting current is concentrated on the outer squirrel cage due to a skin effect, equivalently, an effective section is small, the effective resistance is large, and power factors are increased, so that the starting current of a motor is reduced, and the starting torque is increased.

The invention relates to a fitting clamp for a fine-pitch tube bundle, which comprises two fitting clamp assemblies concentrically connected through a connecting plate; each fitting clamp assembly comprises two insertion plates, a tray and a fastening device, wherein the tray is arranged between the bottom ends of the two insertion plates; the fastening device is arranged between the top ends of the two insertion plates; the thickness of each insertion plate is less than a gap between two adjacent pipes; and the spacing width between the two insertion plates and the pitch of the adjacent pipes are correspondingly arranged. The fitting clamp for the fine-pitch tube bundle can be suitable for the concentric fitting operation on the end part of the fine-pitch tube bundle in an integrated gasification combined cycle (IGCC) gasification furnace or a large-capacity circulating fluid bed (CFB) boiler, is convenient for welding and is capable of effectively ensuring the product manufacturing quality and cycle.

The invention provides cooling process of a czochralski single-crystal method. During cooling, cooling gas is stopped being introduced in a furnace body, at the same time, a vacuum pump is closed, and therefore sealed space is formed. Gas in the furnace body serves as a medium and transmits more heat to flowing water of a furnace wall, and therefore cooling efficiency is high. On the condition that quality, the crystal rate and the production period of czochralski single-crystal bars are guaranteed, the cooling process enables czochralski method cooling process to be remarkably efficient, greatly lowers use amount of the cooling gas, and therefore lowers production cost of the czochralski method to a large extent.

The invention discloses a reassembly method of a high precision porous component. The high precision porous component is provided with a plurality of high-lock bolt holes, each high-lock bolt hole and an assemble place substrate are operated in an accurate counterpoint mode when the high precision porous component is assembled. The high precision porous component is characterized in that the method includes the following steps: a, dislocation processing of prefabricated holes; b, locating fastening of a novel high precision porous component; c, precision reaming of the prefabricated holes; and d, installation of high-lock bolts. According to the reassembly method of the high precision porous component, the prefabricated holes are required to be only renovated and processed on line, original hole manufacturing work which needs to be done in a narrow space and is difficult to operate is mostly transferred to a working environment which is spacious and easy for operation, the repair cycle is greatly shortened under the premise that assembly requirements are met, and assembly operation difficulty is reduced.

The invention discloses a vertical assembly device for a single-side-fixed convolute ultra-large centrifugal compressor impeller, and belongs to the technical field of fixation or location for workpieces. The vertical assembly device comprises a stator and a rotary shaft, wherein the rotary shaft is connected to the stator; a main shaft of a rotor of the large centrifugal impeller is capable of rotating by taking the rotary shaft as a rotary centre, so that the main shaft of the rotor of the large centrifugal impeller is capable of gradually changing an included angle of 0 degree between the axis of the main shaft of the rotor and a horizontal plane to an included angle of 90 degrees between the axis of the main shaft of the rotor and the horizontal plane; the main shaft of the rotor of the large centrifugal impeller is kept at a position with the included angle of 90 degrees between the axis of the main shaft of the rotor and the horizontal plane after the rotor and the horizontal plane is in a vertical state; and a second-stage impeller is hoisted and installed in the main shaft after being heated. The main shaft is laid flatly by using a crown block after the impeller is completely cooled. A first-stage impeller is installed after dynamic balance of the rotor, and the assembly process thereof is the same as above. According to the assembly device, the purpose of vertical assembly for the large centrifugal impeller is achieved, the assembly accuracy is improved, and the product production cycle is guaranteed. A feasible scheme is provided for vertical assembly for impellers of large rotor compressors.

The invention discloses a tool manufacturing method for preventing air leakage of a composite material forming tool. The composite material forming tool is used for forming a composite material part. The composite material forming tool is formed by assembling a composite material paving die and a supporting frame. The composite material paving die is formed by paving and hot-pressing tool prepreg with different thicknesses on the basis of a transition die. In the paving process, pressing strips are paved in the R area and the corner area of the transition die, the tool prepreg is paved in the edge allowance area of the tool in a photo frame mode, and a seam filling long strip is paved in the butt joint area. The photo frame type paving avoids expansion of the edge defect caused by cutting to the interior and cracking during collision or demolding in the carrying process; and the high-temperature air tightness of the tool is further ensured by the pressing strips and the seam filling long strip. The tool manufactured by the method is good in air tightness, the maintenance cost is effectively reduced, the forming quality and the manufacturing period of the composite material part are guaranteed, and good practical and economic values are achieved.

The invention discloses a method for ensuring the coaxiality of a bearing and a stator core of a circulating pump motor, which can greatly improve the production efficiency and reduce the manufacturing cost, and comprises the following steps: respectively fine finishing the whole specifications of a lower bearing bush and a lower end cover; assembling the lower bearing bush into the lower end cover; secondary machining a stator by being placed on a vertical lathe; placing the lower end cover well assembled with the lower bearing bush into a machined lower bearing guard, and simultaneously adjusting the inner circle of the lower bearing bush to meet the technical requirements; correspondingly drilling a plurality of pinholes between the lower bearing guard of the stator and the lower end cover and assembling pins, and simultaneously well marking positioning marks; turning over the stator after being removed from the vertical lathe; placing the stator on the vertical lathe again, and lathing the inner circle and the plane of the upper bearing guard of the stator by taking the inner circle of the lower bearing bush as the adjusting standard; firstly assembling a thrust bearing seat of an upper bearing into the machined upper bearing guard, and then correspondingly lathing the seam allowance and the plane of the thrust bearing seat; and correspondingly drilling a plurality of pinholes between the thrust bearing seat and the upper bearing guard of the stator and assembling pins.

The invention provides a delayed demolding device for a stretching die part. The delayed demolding device for the stretching die part comprises an upper die body and a female die body; the female diebody is fixed below the upper die body through a bolt; an upper nitrogen cylinder is fixed above the upper die body; the driving end of the upper nitrogen cylinder is vertically and downwardly connected with an upper material pressing core; a lower edge pressing ring is arranged below the female die body; a lower nitrogen cylinder is arranged below the lower edge pressing ring; a demolding mechanism is arranged above the lower edge pressing ring, and comprises a push-pull cylinder fixed to the lower edge pressing ring; and the output end of the push-pull cylinder is connected with an embeddingblock which is embedded between the upper material pressing core and the lower edge pressing ring through a lower guiding plate and a cover plate fixed to the lower edge pressing ring. The delayed demolding device for the stretching die part has the beneficial effect that the problems that a traditional manner is narrow in application range, high in manufacturing cost, and large in debugging difficulty. The structure is simple, installing and debugging are convenient, cost is low, reliability is high, the production period and quality of the die are effectively guaranteed, and the manufacturing cost is reduced.

The invention discloses a motor rotor machining center, which is characterized in that a plurality of rotor machining units are used for machining motor rotors of different models; a plurality of rotor storage racks are used for placing rotors to be machined in a transition manner, and an intelligent three-dimensional warehouse orderly and controllably places finished products, semi-finished products and turnover racks of various specifications in the intelligent three-dimensional warehouse through a control system and safely and orderly enters and exits the intelligent three-dimensional warehouse; and the control system controls the rotor storage racks of different types to be conveyed to the corresponding rotor machining units through the AGVs to complete the machining procedures of turning, milling, polishing, drying, paint rolling and the like. And meanwhile, the rotor storage rack is carried by the AGV under the control of the control system, so that the processed rotor which is loaded into the rotor storage rack after being processed on the rotor processing unit is transported to the intelligent three-dimensional warehouse to be stored. The motor rotor machining center is intelligent and automatic, can efficiently complete motor machining and transporting in an environment-friendly mode, and can improve the motor production efficiency.

The invention discloses an integrated gas power generation device. The integrated gas power generation device includes a gas generator set and a movable generator house; the movable generator house includes an equipment room and a monitoring room; the equipment room is equipped with the gas generator set and a gas/air intake mechanism; the gas/air intake mechanism includes a gas intake mechanism and an air intake mechanism; the monitoring room is equipped with a main control cabinet and a circuit breaker cabinet; and the gas intake mechanism is connected to a gas source through an interface arranged on the side of the equipment room. The invention highly integrates the gas generator set, the monitoring system, the gas intake mechanism, a cooling system, an exhaust muffler system, a machineroom and the like, so as to form a micro-power station; and after the equipment is in place, power generation can be realized by connecting water, electricity, gas and the like with the outside world.

The invention relates to recycled concrete, a recycled concrete prefabricated part and a preparation method thereof. The recycled concrete is prepared from the following raw materials in parts by weight: 325 to 420 parts of cement, 500 to 650 parts of fine aggregate, 850 to 1000 parts of coarse aggregate, 350 to 450 parts of recycled aggregate, 155 to 200 parts of water, 3 to 9 parts of a retarding type water reducing agent and 2 to 6 parts of an early strength agent. The preparation method of the recycled concrete prefabricated part comprises the steps of recycled concrete slurry preparation, concrete pouring, prefabricated part maintenance and the like. The concrete prefabricated part is obtained by adopting the preparation method of the recycled concrete prefabricated part. The flowing property of the concrete containing the recycled aggregate is improved, and the problems that the slump loss of the recycled concrete is large and the vibrating operation is difficult are solved; meanwhile, the early strength and the later strength of the concrete are also improved, the problem that demolding is difficult to realize in one day after the delayed coagulation component is added is solved, and the production cycle and the product quality of the concrete member are ensured.