55 results about "Single stage" patented technology

The invention relates to a light-weight type planetary line gear reducer which comprises a sun gear, a planetary gear, an inner gear ring and a planetary carrier which are all light-weight type line gears, the sun gear is located in the center of the inner gear ring, the sun gear and the planetary carrier are both coaxially and rotationally installed on the inner gear ring, and the planetary gear is installed on the planetary carrier in a heteroaxial rotation mode and can rotate around the axis of the planetary gear. And the tooth surface normal of any contact point of the planet gear is collinear with the tooth surface normal of the corresponding contact point of the sun gear and the inner gear ring at the same time, the contact line is a cylindrical spiral line, and the transmission ratio and the spiral radius are decoupled. Through the space curve meshing theory, the reduction ratio exceeding 30 can be achieved through a single stage, the stage number of the planetary reducer is reduced, the force flow transmission path is remarkably shortened, the overall weight is reduced, and meanwhile the bearing capacity and reliability are improved; the technical problems that in the prior art, when the large reduction ratio is achieved, the multi-stage series connection structure is complex, the weight is increased, the transmission and positioning precision is reduced, and the load dispersing capacity is limited are systematically solved.

To provide a system capable of operating re-pellet production and PP band production from a simple flexible container in an almost unmanned state.SOLUTION: This system is equipped with a first single stage extruder 2 for pelletizing the crushed product of a used simple flexible container bag 1 and the single stage extruder 2 has a cylinder 21, a laser filter, a dual piston screen changer 3 and a die part 24. The crushed product supplied to the single-stage extruder 2 together with pellets as necessary is melted at a temperature of 190 °C or higher and 230 °C or lower, sewing threads contained in the melted crushed product are removed with a screen of 120 mesh or less using a laser filter, and foreign matter is removed with a screen of 120 mesh or less using a screen changer 3 or the like. The first recycled resin melt from which the sewing threads and foreign matter have been removed is pelletized in the die part 24.SELECTED DRAWING: Figure 2

The application relates to the technical field of high-speed centrifugal blowers, and discloses a single-stage air-floating blower which comprises an outer shell body, an inner shell body, a first end cover, a second end cover, a third end cover, a fourth end cover, a stator, a rotor shaft, a thrust disc, a volute body, a gas compression impeller, a main fan, an auxiliary fan, a radial air-floating bearing and an axial air-floating bearing. The main fan is arranged to cool the stator, the rotor and the radial air-floating bearing, the auxiliary fan is arranged to cool the axial air-floating bearing, and after the auxiliary fan cools the axial air-floating bearing, the cooling gas in the channel can flow into the cooling channel of the main fan. Compared with the previous air-floating blower scheme, the cooling efficiency between the stator and the rotor is improved, and the air amount entering the axial air-floating bearing is increased by arranging the auxiliary fan.

A single stage water separator apparatus (1) comprises: a water separator housing (2) comprising a water separation chamber (3) and a water collection chamber (4); a water-carrying volume inflow port (8) defining a water-carrying volume inflow channel (11) for directing a water-carrying volume flow into the water separation chamber (3); a water volumetric flow outlet port (10) defining a water volumetric flow outlet channel (12) for directing a water volumetric flow out of the water collection chamber (4); an unloaded water volume flow outlet port (9) defining an unloaded water volume flow outlet channel (13) for directing an unloaded water volume flow out of the separation chamber (3); and an immersion tube (5) comprising an immersion tube portion (7) immersed in the water separation chamber (3) and for fluidly connecting the unloaded water volume outflow port (9) with the water separation chamber (3).

The invention provides a fan and electric equipment, and belongs to the field of fans. The fan comprises a centrifugal impeller, an air inlet cover, an axial flow impeller and a fluid director. The air inlet cover is arranged on the outer side of the centrifugal impeller in a covering mode and provided with an air inlet located in the upstream of the centrifugal impeller and an air channel communicated with the air inlet and used for guiding airflow to be exhausted in the axial direction of the draught fan. The axial flow impeller is arranged at the downstream of the air duct and is used for doing work on air flow exhausted by the air duct; the fluid director is arranged on the downstream portion of the axial flow impeller and used for guiding airflow exhausted from the axial flow impeller to flow in the axial direction of the draught fan. Compared with a single-stage acting structure, the fan and the electric equipment provided by the invention are more beneficial to improving the overall pressure rise and suction capacity and reducing noise, so that airflow is stably output in the axial direction, and the quality of an airflow outlet flow field and the energy utilization efficiency are improved.

The invention belongs to the technical field of water treatment, and particularly relates to a modularized multi-stage membrane distillation synchronous concentration device and method. The device comprises one or two of a concentration module and a desalination module, the concentration module and the desalination module comprise the following devices which are stacked in sequence: a concentration piece, a porous membrane and a vacuum piece; each group of the sequentially stacked devices forms a membrane separation unit, and the number of the membrane separation units is one or more. The system adopts an innovative multi-stage modular expansion framework, and the core of the system is an inter-stage isolation structure based on gradient pressure balance. The whole process integration of front-end desalination and impurity removal, middle-end gradient concentration and tail-end pure water production is realized in the same set of plate and frame type assembly. According to the structure, the hydrophobic microporous membranes and the plate frame type assemblies are alternately stacked to form the concentration chamber and the desalination chamber, flexible expansion from a single stage to multiple stages is supported, and high concentration and desalination application scenes with different scales and treatment requirements are perfectly adapted.

Preform design is a crucial step in hot forging of metals. Embodiments of present disclosure provide a method and system of generating preform design for single stage hot forging of metals. The method optimizes the preform geometry using three key aspects: geometry, grain size, and forging force by a multi-objective optimization technique. Initially, parameters of a preform of a product and a single stage hot forging press are obtained which are used to generate initial set of geometric variations of the preform using a multi-objective optimization technique. This set is refined iteratively for a predefined number of iterations. At each iteration, a fitness value associated with each geometric variation is computed based on geometry, grain size, and force fitness value, and a new set of geometric variations are generated based on the fitness value which is used in the next iteration.

1. Name of the designed product: water suction pump (single-stage cyclone). 2. Use of the designed product: for pumping water. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

The utility model relates to a kind of evaporators of high-efficiency gas-liquid separation, a kind of evaporators of high-efficiency gas-liquid separation, including first cylinder and the first head connected in the bottom of the first cylinder, the evaporator further includes second head, the second head is covered in the first head portion and with the first head forms first cavity, in the second head surface also be provided with the first steam inlet of first cavity.This embodiment's high-efficiency gas-liquid separation evaporator is heated twice by using first cavity design, that is, by the first head and second head form first cavity, by setting first steam inlet in first cavity, the problem of insufficient heating efficiency of traditional single stage is solved, so that the material not fully separated obtains supplemental heat energy, fully separates again, improves production efficiency and precision.

The present application relates to the technical field of carbon emission in new energy comprehensive utilization, and provides a wind-solar-storage hydrogen-ammonia-alcohol project full life cycle carbon emission quantification method and system, through collecting activity data, carbon emission factor data and project design life of each stage of the project life cycle, determining the full life cycle accounting boundary covering the collection of raw materials to the end of life, and respectively carrying out carbon emission quantification for the early preparation stage, construction stage, operation and maintenance stage and decommissioning stage, finally the total net carbon emission of the project full life cycle is obtained by summarizing, so that the characteristics of the wind-solar-storage hydrogen-ammonia-alcohol project system, such as complex composition, multiple links and various data types, can be targeted, a unified carbon emission quantification path with stage corresponding relationship is established, the problems of unclear boundary and incomplete results caused by the existing method of only accounting for single equipment, single process or single stage are avoided, and the systematization and integrity of the full life cycle carbon emission accounting are improved.

The invention relates to a concrete skewback segment crack simulation analysis method, and belongs to the field of concrete construction. According to the technical scheme, the concrete skewback segment crack simulation analysis method comprises the following steps that S1, simulation analysis basic conditions are determined, specifically, concrete damage parameters are set, and finite element software is selected; s2, constructing a concrete skewback segment simulation model by adopting an extended finite element method, defining a level set function to characterize a crack interface through a level set method, and constructing a displacement function by adopting a discontinuous shape function; s3, setting a concrete crack initiation criterion and a concrete crack propagation direction criterion; and S4, anti-cracking simulation analysis is conducted on the construction stage and the operation stage of the skewback section, and the cracking state and stress field distribution of skewback section concrete are obtained. According to the method, the anti-cracking performance under the load effect in the operation stage is evaluated, the whole-stage cracking state and the stress field distribution rule are output, a whole-cycle data support is provided for engineering practice, and the problem that single-stage analysis and evaluation are one-sided in the traditional technology is solved.

The utility model discloses a kind of high-performance single-stage transmission gearboxes, it is related to gear box field, including gear box and the high-speed shaft being set to gear box inside, the outside wall of gear box is equipped with heat sink by bolt fixation;The side of gear box is equipped with oil inlet pipeline, and the one end of oil inlet pipeline is fixedly provided with oil inlet flange, and the pipe wall of oil inlet pipeline is fixedly provided with multiple branch pipes, and the one end of multiple branch pipes is fixedly provided with pipe joint, and the top of gear box is fixedly provided with multiple lubricating passages, and lubricating passage is communicated with the oil tank of each part in gear box needing lubrication.The utility model improves heat dissipation efficiency by heat sink and external circulation lubrication design, reduces heat accumulation;Adopt high-speed bearing configuration and conical surface sealing structure, solve bearing failure and oil leakage problem under high speed;Gear modification reduces noise, welding joint inner baffle prevents air-permeable cap oil leakage, and can be modified using existing casting box, save cost.

1. Name of the designed product: pipe pump (vertical single stage). 2. Use of the designed product: for conveying liquid on the pipe. 3. Design points of the designed product: in shape. 4. Picture or photo best showing the design points: perspective view 1.

This invention discloses a control method for a assignable joystick for stage equipment, comprising the following steps: S1, dynamically assigning control of the physical joystick to a single stage device or a predefined equipment group consisting of multiple stage devices based on the stage control interface; S2, automatically loading the corresponding control mapping rules and joystick behavior configuration according to the assignment target; S3, adaptively and dynamically adjusting the force feedback intensity, dead zone size, and stroke damping of the physical joystick according to the device type and real-time load of the assignment target to provide a matching device operation feel; S4, sampling the analog signal generated by manipulating the physical joystick through a high-precision ADC and converting it into control commands; S5, sending the control commands through the device control channel to drive the single target device or target device group to move smoothly according to an S-shaped speed curve, and updating the real-time status data of the device and the control assignment information of the joystick to the global status data model.

The dental handpiece telescopic handpiece comprises a speed reduction part and a telescopic part, the speed reduction part comprises a transmission shaft and a gear, one end of the transmission shaft is connected with a power source, and the other end of the transmission shaft is connected with a connecting gear; the telescopic part comprises a fixed transmission shaft, a telescopic assembly and a movement assembly, one end of the fixed transmission shaft is connected with the gear, the other end is connected with one end of the telescopic assembly, and the other end of the telescopic assembly is connected with the movement assembly; the telescopic assembly comprises a telescopic transmission shaft and a shaft sleeve sleeving the telescopic transmission shaft, the telescopic transmission shaft extends into an inner cavity in one end of the fixed transmission shaft, the shaft sleeve wraps the outer wall of the fixed transmission shaft, and the telescopic transmission shaft and the shaft sleeve can slide relative to the fixed transmission shaft. The machine head adopts single-stage speed reduction and is low in noise, high in transmission efficiency, simple in structure, convenient to assemble, high in production efficiency and low in cost, and the telescopic transmission shaft can stretch and retract relative to the fixed transmission shaft, so that the distance between the machine head assembly and the fixed transmission shaft is adjusted, and a user can treat teeth at different positions conveniently.

This invention offers a solution for optimizing wind energy production. The Biomimetic Nurse Shark Turbine (BNST) derives its design from the hydrodynamic shape of a nurse shark's tail, applied to a horizontal-axis turbine. It integrates into the air manifolds of an Aero-MINE system as a single stage or stacked in multiple stages. The turbine is powered by the accelerated airflow in the Aero-MINE's intake duct. The wind blowing over the Aero-MINES creates a low-pressure zone between the airfoils, designed according to NACA duct principles, allowing the air to be channeled through internal ducts. This air is then routed to a manifold, where it drives the TBRN turbine and a generator located inside the structure, thus generating electricity. This biomimetic system reduces dependence on fossil fuels by producing clean wind energy. It minimizes CO2 emissions, with a potential reduction of up to 4 million tons of CO2 equivalent per year through integration with existing stand-alone photovoltaic systems on commercial buildings. Aero-MINEs are designed for modular use, integrated into buildings or as standalone units.

A system for processing oil and gas at an offshore facility includes a single stage separation module. A gas stream from the single stage separation module is pressurized in a primary compressor, and then is used to heat the incoming oil and gas upstream of the single stage separation module. Flash gas from treatment of an oil stream from the single stage separation module is pressurized in a flash gas compressor and then is used to heat glycol utilized in a gas dehydration unit. The pressurized flash gas is then commingled with the gas stream from the single stage separation module upstream of the primary compressor.

The invention relates to a radial single-stage pump (1) having a pump impeller (3) which comprises a plurality of guide vanes (3a) which extend in an axial direction. The invention further relates to a sensor cleaning device (6) having a radial single-stage pump (1) of this type and to a vehicle (7) having a radial single-stage pump (1) of this type or a sensor cleaning device (6) of this type.

The utility model relates to the technical field of automobile damping equipment, in particular to a two-in-one bipolar damping support capable of effectively reducing vibration of an air compressor. The support comprises an adapter piece, a limiting pin, a damping bolt, an elastic damping piece and a buffer gasket, wherein a threaded hole for screwing the damping bolt is formed in the adapter piece; the limiting pin is provided with a U-shaped mounting position which extends up and down and is used for mounting the damping bolt, and a mounting hole is formed in the bottom of the U-shaped mounting position for the damping bolt to penetrate through; the periphery of the limiting pin is provided with an installation groove used for installing the elastic damping piece. The damping bolt is sleeved with a damping spring, a spring bush is arranged in the U-shaped installation position, and the damping spring is located between the head of the damping bolt and the bottom face of the spring bush. The buffer gasket is arranged at the bottom of the limiting pin and provided with a penetrating hole for the damping bolt to penetrate through. The technical problems that in the prior art, a single-stage damping support is single in damping frequency band, and a two-stage damping support is complex in structure, difficult to produce and limited in arrangement are effectively solved.

The present application aims to provide a single-stage compressor rotor blade with double-type multi-channel ventilation holes to reduce noise, comprising a blade tip, a blade root, a leading edge, a trailing edge, a suction surface, a pressure surface, an A-type ventilation hole penetrating through the blade tip and the trailing edge and a B-type ventilation hole penetrating through the middle position of the pressure surface and the trailing edge are arranged inside the blade body, the inlet of the A-type ventilation hole is located at the blade tip, the outlet is located at the trailing edge, and the inlet is a straight line segment perpendicular to the blade tip with a length of D, the inlet of the B-type ventilation hole is located at the middle position of the pressure surface, and the outlet is located at the trailing edge. On the one hand, the double-type ventilation holes can reduce the vortex noise formed by the tip clearance leakage vortex and the trailing edge shedding vortex. On the other hand, reducing the size of the blade trailing edge shedding vortex can also reduce the interference between the rotor blade and the static blade, thereby reducing the single-frequency discrete noise of the compressor. Moreover, the double-type multi-channel ventilation hole structure reduces the difficulty of opening a single A-type ventilation hole.

1. The name of the design product: single-stage high-speed fan cabinet (GC260). 2. The use of the design product: reduce fan noise, reduce dust pollution, prevent liquid splashing, and avoid the impact of external force when the fan is running. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The utility model relates to a permanent magnet efficient single-stage pump which comprises a pump body, a pump cover, a motor shaft, a permanent magnet synchronous motor, a deflation valve, an impeller and a base. The pump cover and the pump body are detachably connected together, and the pump body is fixed to the base. A pressure tapping hole is formed in the pump body water outlet flange; the deflation valve is arranged at a deflation hole in the side edge of the pump cover and pump body connecting flange; a motor shaft of the water pump permanent magnet synchronous motor is directly connected with the impeller, and the pump cover and the permanent magnet synchronous motor are fixed together. Compared with a conventional single-stage pump which adopts a YE3 asynchronous motor and is provided with a coupler, the single-stage pump has the advantages of being simple in structure, low in energy consumption, small in noise, long in service life, convenient to maintain and the like.

A single stage servo valve assembly includes a drive assembly and a valve body assembly. The valve body assembly defines a valve body extending along a valve body axis (X) between a first valve body end and a second valve body end, a supply port, a control port and a return port formed through the valve body each defining a respective fluid flow channel, having a fluid flow axis, providing fluid communication between an interior of the valve body and an exterior of the valve body. The drive assembly operates to control the flow of fluid between the supply port, the control port and the return port, via the interior of the valve body, in response to an electric command signal; wherein a first nozzle is located in the valve body between the supply port and the control port and a second nozzle is located between the ports.

An improved vise adapter for use with existing industrial single stage vises. A rear fixed jaw adapter block is mounted on the rear fixed jaw of the vise, a front floating jaw adapter block is mounted on the front floating jaw of the vise, and a middle floating jaw is slidingly mounted therebetween on two pairs of guide shafts extending out from the rear fixed jaw adapter block. The front floating jaw adapter block also is slidingly mounted on the guide shafts. As a linear clamping force is applied in the direction of the fixed jaw of the vise, the adapter holds two workpieces instead of a single workpiece.

The present invention relates to a method for manufacturing a reinforced conveyor belt (100) and a product obtained by the method comprising a plurality of plastic modules (10, 10'), wherein each module (10, 10') includes at least one opening (12, 12') for receiving rollers (11, 11'), and the rollers are configured to rotate relative to a shaft (13, 13') consisting of a metal tube capable of being filled with plastic material; and the method includes the following stages: (i) inserting the shaft (13, 13') into an injection mold (200, 200') for the plastic modules (10, 10') in a region corresponding to the opening (12, 12'); and (ii) injecting the plastic modules (10, 10') in a single stage such that the injected plastic fills the interior of the shaft (13, 13'), thereby forming a single component or structure with the body of the modules (10, 10').

The invention discloses a single-phase single-stage nonlinear boost inverter circuit topological structure and a control method thereof. The working modes of the inverter circuit comprise a positive half-cycle sine wave output mode and a negative half-cycle sine wave output mode, and the two modes are switched through turn-on of a pair of complementary power frequency switches. The topology provided by the invention has nonlinear output voltage gain, and the functions of boosting and inverting in a single stage can be realized through reasonable design and distribution of the duty ratio of the switch. Compared with a traditional two-stage voltage source inverter, the topological structure provided by the invention reduces the use of passive elements, and has the advantages of low cost, small size, high efficiency, convenience in control and the like. The single-stage topological structure can simplify the structure of a traditional two-stage inverter, reduces the use of components such as a filter and a controller, and avoids the extra loss of energy in the multi-stage transmission and processing.

A time-to-digital converter (TDC) employing a single stage delay pair to achieve a wide input range and reduce quantization noise in a phase-locked loop (PLL), and related methods of manufacture are disclosed. Aspects disclosed in particular embodiments include a single stage Vernier time-to-digital converter (TDC) that mitigates the effects of device mismatch, thereby avoiding spurious tones that may occur in fractional-N PLL applications. In combination with the delta-sigma noise shaping stage and the rough TDC based on the ring oscillator, good balance among the resolution, the detection range and the PLL locking speed is realized.

The utility model provides a single -stage flywheel. Single -stage flywheel includes inner core and sets up the outer cover of inner core, is provided with one -way clutch mechanism between inner core and outer cover to make outer cover can occur relative rotation with inner core in single rotation direction. One -way clutch mechanism includes a plurality of jack and with a plurality of elastic pieces corresponding setting up a plurality of jack. The circumferential wall of inner core is equipped with several accommodating grooves, and the jack and elastic piece are installed in the accommodating groove along the axial direction of the inner core, and the circumferential wall of the inner core is provided with a step part, and the accommodating groove is at least partially opened in the step part. Single -stage flywheel includes the bearing setting between inner core and outer cover, and the bearing has the inner ring fixed connection with inner core, the outer ring fixed connection with outer cover and the several ball bearings between the inner ring and the outer ring, wherein the inner ring is crimped on the step part to limit the jack and the elastic piece along the axial direction of the inner core from the accommodating groove. The single -stage flywheel provided by the utility model can improve the convenience and use reliability of flywheel maintenance.

This utility model relates to a single-stage pipeline pump with a dynamic seal and an integrated packing seal. The single-stage pipeline pump includes: a foundation plate, a pump body, an impeller, a pump cover, a secondary impeller dynamic seal, a motor, a water-retaining ring, an integrated self-adjusting packing seal system, and an impeller fixing component. The entire single-stage pipeline pump is fixed on the foundation plate. The water-retaining ring is located on the pump shaft and above the integrated self-adjusting packing seal system. Both the secondary impeller dynamic seal and the integrated self-adjusting packing seal system are installed on the pump shaft, with the secondary impeller dynamic seal located between the integrated self-adjusting packing seal system and the impeller. This utility model uses a combination of a secondary impeller dynamic seal and an integrated self-adjusting packing seal system, solving the problems of existing mechanical seals, especially addressing the issues of high cost, complex external systems, high investment costs, and high maintenance costs associated with mechanical seals in conditions involving solid particulate impurities and corrosive environments.