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38results about How to "Flexible and convenient switching" patented technology

Electric transmission system of dual-power metro grinding car and power switching method

The invention discloses an electric transmission system of a dual-power metro grinding car. The electric transmission system comprises a high-voltage electric appliance box, an electric reactor, a traction inverter, a traction motor, an auxiliary power generator, a three-phase rectifier cabinet, a grinding inverter and a grinding device, wherein power can be supplied to the traction motor and the grinding inverter through a contact grid, or power can be supplied to the traction motor and the grinding device through the auxiliary power generator. The invention further provides a power switching method for the dual-power metro grinding car. According to the method, seamless switching of the power supply between the contact grid and the auxiliary power generator can be realized. The electric transmission system has the advantages of being convenient to maintain, lower in energy consumption and pollution, and friendly to the environment; the power switching method has the advantages that the dual-power metro grinding car needs not to be shut down in the switching process, the flexibility and the convenience are guaranteed, the voltage is kept stable during the switching of the power supply, and the normal operation of the dual-power metro grinding car is not impacted.
Owner:ZHUZHOU CSR TIMES ELECTRIC CO LTD

Nitrogen and phosphorus removal integrated biological reaction tank operating in multiple modes

The invention discloses a nitrogen and phosphorus removal integrated biological reaction tank operating in multiple modes. The biological reaction tank comprises a biological selection zone, a pre-anoxic zone, a main reaction zone, a water distribution zone, a water outlet zone and an internal reflux channel, wherein the main reaction zone comprises a zone A, a zone B and a zone C; the zone A can serve as an anaerobic zone or an anoxic zone during operation; the zone B and the zone C can serve as aerobic zones and can also serve as anaerobic zones or anoxic zones during operation; the biological selection zone is arranged on the forepart of the reaction tank; the pre-anoxic zone is arranged behind the biological selection zone; the water distribution zone is arranged among the zone A, the zone B and the zone C; and the water outlet zone is arranged between the zone B and the zone C and is connected with the water distribution zone by the internal reflux channel. The nitrogen and phosphorus removal integrated biological reaction tank operating in multiple modes, which is provided by the invention, has the advantages that the biological reaction tank has the characteristics of intensification, small floor area and small quantity of equipment and can alternately operate in multiple modes; and the modes are switched freely and flexibly, so that impact load resistance is ensured and efficient biological nitrogen and phosphorus removal can be achieved under the condition that the inflow water quality changes more substantially.
Owner:SHANGHAI MUNICIPAL ENG DESIGN INST GRP

Machine for riveting heating series movable connection pipe seat and inlet and outlet pipes

ActiveCN102814414AEasy to operateSolve the riveting problemEngineeringMechanical engineering
The utility model relates to a machine for riveting a heating series movable connection pipe seat and inlet and outlet pipes; an upper support and a lower support are fixedly arranged up and down; two side installation seats and a lower bracket are respectively arranged on the front side of the lower support fixedly; a riveting device is fixedly arranged on the upper plane of the lower support in the upper support; a side push cylinder is fixedly arranged at the rear part of the upper support which corresponds to the riveter; two upper compression cylinders which are arranged in parallel are fixedly arranged at the middle part of the upper plane of the upper support; a pipe clamping seat is respectively hinged on plunger heads of the two upper compression cylinders which are arranged in the upper support; the pipe clamping seats are respectively used for pressing and fixing an air inlet pipe and an air outlet pipe of a heater; and the pipe clamping seats are arranged corresponding to the riveter. According to the riveting machine, the operation process of an operator can be greatly simplified, the difficult riveting problem between any pipeline and pipe seat with small spacing as well as the pipe seat and the pipe of any pipe seat heating product with or without incision is solved, one machine can solve the difficult riveting problem between the movable connection pipe seat and the pipe of any heater, the status quo that production cannot be carried out because the trend of the pipeline and the position of the pipe seat are different is avoided, the production efficiency and the quality are improved, and conditions are conveniently provided for customizing standardized production in future.
Owner:TIANJIN YAXING RADIATOR

Construction steel platform mould base system with double tuned mass vibration reduction function

The invention relates to a construction steel platform mould base system with a double tuned mass vibration reduction function. A fixing connection mode of a traditional whole climbing steel platform mould base system and a structure main body is transformed into a mode that the bottom connected to a friction support base can slide, tuning vibration reduction control is conducted by using the steel platform mould base system, and meanwhile the vibration of the structure main body and the mould base system generated by earthquakes or wind load is reduced. A friction swing support base is also arranged on a material stacking area platform, the mode of tuned mass vibration reduction is adopted to further reduce the vibration of the structure main body and the mould base system, accordingly, the whole platform system becomes a double tuned mass damper, and double tuned mass vibration reduction is achieved. The parameters such as support base rigidity and material stacking area platform quality mass are changed, so that the system is adapted to the structure frequency in different construction processes, and accordingly the better vibration reduction effect is achieved. The tuned mass vibration reduction function and the normal usage function of the steel platform mould base system can be switched at any time, and the system is flexible to use. The construction steel platform mould base system belongs to the technical field of wind resistance, shock resistance and shock absorption of civil engineering.
Owner:BEIJING UNIV OF TECH

Sewage low-carbon biological treatment system self-adaptive to water quality change and method thereof

The invention discloses a sewage low-carbon biological treatment system and method self-adaptive to water quality change. The sewage low-carbon biological treatment system comprises a sludge concentration fermentation tank, a rectangular water inlet box culvert, a multifunctional tank, a biological reaction tank, an external reflux sludge channel, a secondary sedimentation tank and an effluent quality online monitoring system, the two sides of the rectangular water inlet box culvert are each connected with one multifunctional pool, and the two sets of multifunctional pools are rectangular. A sludge concentration fermentation tank is arranged on one side of the multifunctional tank, the other side of the multifunctional tank is connected with the biological reaction tank, an overrunning box culvert is arranged between the multifunctional tank and the biological reaction tank, and the water inlet end of the overrunning box culvert is connected with a water outlet port of a rectangular water inlet box culvert; the water outlet end of the biological reaction tank is connected with the secondary sedimentation tank; an outer return sludge channel is arranged on one side of the water distribution channel of the secondary sedimentation tank and extends to surround the peripheries of the biological reaction tank, the multifunctional tank and the sludge concentration and fermentation tank. The invention solves the technical problem that the matrix metabolism balance of the biological treatment system is difficult to realize when the water quality is unstable.
Owner:TONGJI UNIV +1

Sewage treatment device with multi-mode operation

The invention discloses a sewage treatment device with multi-mode operation, and belongs to the field of sewage treatment systems. Four groups of fixed tank bodies are arranged in parallel, and a fixed flow guide wall, a movable flow guide device, an aeration device and the like are respectively arranged at two ends of each group of fixed tank bodies. The volume distribution of different reaction tanks can be realized by the movable flow guide device, so that the optimal nitrogen and phosphorus removal treatment effect is achieved. Aeration devices are distributed on the whole tank body, and whether aeration of each area is started or not is controlled through valves on the aeration devices, so that the aerobic/anoxic/anaerobic state is realized. A step-feed multi-stage A/O operation mode is adopted, so that biological denitrification is enhanced, a carbon source in sewage is utilized to the greatest extent, internal reflux is not needed, and energy consumption is reduced. The system sludge concentration is higher than that of a traditional biochemical pool. Multiple modes can be alternately operated according to the water quality condition, and the number of the alternate operation modes can be as high as 7; the operation modes are diversified, switching is flexible and convenient, and the system can adapt to great changes of inflow water quality and meet the requirements of outflow water quality.
Owner:北京安国水道自控工程技术有限公司

Uuv speed duplex control device and method for ocean observation operations

The invention provides a UUV(Unmanned Underwater Vehicle) navigational speed duplex control device and method for ocean observation operation, which comprises a task control module, a magnitude navigational speed control channel, a precise navigational speed control channel, a motion control module and a sensing module, wherein the task control module is mutually connected with the magnitude navigational speed control channel, the precise navigational speed control channel, the motion control module and the sensing module, and the magnitude navigational speed control channel and the precise navigational speed control channel are all connected with the motion control module. The sensing module captures UUV status, position information and ocean current section information, and then sends the UUV status, the position information and the ocean current section information to the task control module, the motion control module and the task control module to carryout real-time information exchange after the information is processed. The task control module selects different channels according to the current operating condition, and sends digital control quantity corresponding to the current navigational speed command of UUV to the motion control module in order to accomplish the entire navigation speed control procedure. The UUV (Unmanned Underwater Vehicle) navigational speed duplexcontrol device and method disclosed by the invention can be applied for cable control debugging and navigational speed control of various kinds of UUV (Unmanned Underwater Vehicle) during multiple-operation condition operation.
Owner:哈尔滨船海智能装备科技有限公司

Multi-stage hydraulic machine continuously variable transmission for heavy vehicle

InactiveCN108343720ASatisfy high load operationMeet needsFluid gearingsGearing detailsHydraulic pumpEngineering
The invention relates to the field of vehicle transmission equipment, in particular to a multi-stage hydraulic machine continuously variable transmission for a heavy vehicle. The multi-stage hydraulicmachine continuously variable transmission for the heavy vehicle comprises a mechanical transmission assembly, a hydraulic transmission assembly, a power shaft, a motor shaft and a main output shaft,wherein the power shaft, the motor shaft and the main output shaft are parallel; the mechanical transmission assembly comprises a front planetary row confluence device, a rear planetary row confluence device, a fixed shaft gear pair and a plurality of clutch execution devices used for band switch; the hydraulic transmission assembly comprises a variable-displacement hydraulic pump and a quantitative hydraulic motor which are arranged in series; an input shaft of the variable-displacement hydraulic pump is fixedly connected with a third gear; and an output shaft of the quantitative hydraulic motor is fixedly connected with the end, close to the front planetary row confluence device, of the motor shaft. The multi-stage hydraulic machine continuously variable transmission for the heavy vehicle not only can achieve multi-stage large-range continuously variable speed adjusting performance, but also can meet the multi-mode requirements for driving of the vehicle under different working conditions.
Owner:HENAN UNIV OF SCI & TECH

Multi-cycle variable flow refrigerating system

The invention discloses a multi-cycle variable flow refrigerating system and aims at providing a system capable of reducing the initial investment and operating cost. A first exhaust port of a refrigerating compressor unit is connected with a second port of a heat exchanger through a second valve. A third port of the heat exchanger is connected with a first port of a three-way valve. A second portof the three-way valve is connected with one end of a second throttle valve and one end of a third valve correspondingly. The other end of the second throttle valve is connected with a first suctionport through an evaporator. The other end of the third valve is connected with a first port of the heat exchanger and one end of a first valve. The other end of the first valve is connected with a third port of the three-way valve in parallel and then is connected with a second suction port. A fourth port of the heat exchanger is connected with a second exhaust port through a first throttle valveand a condenser. The multi-cycle variable flow refrigerating system is flexible and convenient to switch, the initial investment of the system can be reduced, the system operation cost can be lowered,and the system is more stable in operation.
Owner:TIANJIN UNIV OF COMMERCE

UUV navigational speed duplex control device and method for ocean observation operation

The invention provides a UUV(Unmanned Underwater Vehicle) navigational speed duplex control device and method for ocean observation operation, which comprises a task control module, a magnitude navigational speed control channel, a precise navigational speed control channel, a motion control module and a sensing module, wherein the task control module is mutually connected with the magnitude navigational speed control channel, the precise navigational speed control channel, the motion control module and the sensing module, and the magnitude navigational speed control channel and the precise navigational speed control channel are all connected with the motion control module. The sensing module captures UUV status, position information and ocean current section information, and then sends the UUV status, the position information and the ocean current section information to the task control module, the motion control module and the task control module to carryout real-time information exchange after the information is processed. The task control module selects different channels according to the current operating condition, and sends digital control quantity corresponding to the current navigational speed command of UUV to the motion control module in order to accomplish the entire navigation speed control procedure. The UUV (Unmanned Underwater Vehicle) navigational speed duplexcontrol device and method disclosed by the invention can be applied for cable control debugging and navigational speed control of various kinds of UUV (Unmanned Underwater Vehicle) during multiple-operation condition operation.
Owner:哈尔滨船海智能装备科技有限公司

Cutting and winding process for automobile sealing strip

InactiveCN114852444AAchieve the effect of clamping and windingAchieve the effect of length cuttingBundling machine detailsPackaging machinesMachiningAutomotive engineering
The invention discloses an automobile sealing strip cutting and winding process which specifically comprises the following steps that firstly, when cutting and winding integrated equipment is used for cutting an automobile sealing strip, a cutting assembly is arranged on a winding assembly in a sleeving mode, and the automobile sealing strip is pushed to the top of the cutting assembly. According to the tailoring and winding process for the automobile sealing strip, the winding assembly is arranged on the rack, the oval winding pipe with the notch is matched with the air bag to achieve the effect of clamping and winding the automobile sealing strip, the tailoring assembly is externally arranged on the winding assembly, and the tailoring assembly and the winding assembly are matched to achieve the effect of equal-length tailoring of the automobile sealing strip; and the oval contour of the oval winding pipe and the air bag capable of spraying air outwards play key roles, so that the winding assembly is dual-purpose, independent cutting equipment does not need to be arranged independently, the whole equipment has two functions while the size is not changed, and the machining and packaging requirements of different products can be met.
Owner:马继红

Spray gun device for drawing oil painting

The invention discloses a spray gun device for drawing oil painting. The spray gun device comprises a gun body, a paint box, a sprayer, a rotary disk, a rotary shaft, a first bracket, a rotary platform, positioning teeth, a rotary column, a second bracket, a third bracket, a pressing plate and a torsional spring, wherein a conveying passage is arranged in the gun body; a spraying end is arranged at the head of the gun body; the gun body is connected with a control handle, and the control handle compresses the air in the gun body to spray the pigment, conveyed into the conveying passage, of thepaint box out of the spraying end; a plurality of spraying holes are formed in the sprayer; the sprayer is arranged on the rotary disk; the diameters of the spraying holes are different; the rotary disk is coaxially connected with the rotary shaft; the rotary shaft is rotatably arranged on the first bracket; the rotary platform is connected with the rotary shaft; a positioning groove embedded inthe positioning teeth is formed in the rotary platform; the positioning teeth are connected with the rotary column; the rotary column is rotatably arranged on the second bracket; the torsional springis arranged on the rotary column in a sleeving manner; and the pressing plate is arranged on the positioning teeth. The spray gun device can flexibly and conveniently switch the sprayer with differentspraying hole sizes to meet different drawing demands.
Owner:珠海闲云艺术有限公司

Variable-flow multi-cycle heat pump system

The invention discloses a variable-flow multi-cycle heat pump system, and aims at providing a system which is simple in structure and low in cost. The variable-flow multi-cycle heat pump system comprises a refrigerating compressor unit, a three-way valve, a heat exchanger, an indoor unit, an outdoor unit, a first throttle valve and a second throttle valve; the refrigerating compressor unit comprises multiple compressors and four-way reversing valves of which the number is the same as that of the compressors, and each compressor and the corresponding four-way reversing valve form a compressingunit; in each compressing unit, the exhaust end of the compressor is connected with a first port of the corresponding four-way reversing valve, and the suction end of the compressor is connected witha third port of the corresponding four-way reversing valve; and in each compressing unit, second ports of the four-way reversing valves are connected in parallel and then divided into second ports andthird ports of the refrigerating compressor unit, and fourth ports of the four-way reversing valves are connected in parallel and then divided into first ports and fourth ports of the refrigerating compressor unit. The system is simple in structure and flexible and convenient to switch.
Owner:TIANJIN UNIV OF COMMERCE

Multifunctional elevator testing and controlling device

The invention discloses a multifunctional elevator testing and controlling device, which comprises a first control panel, a second control panel and a selector switch. The first control panel consists of a master control panel, a shaft control panel, an elevator car control panel, a first interface and a second interface, a switching value signal output end of the shaft control panel is electrically connected with a switching value signal input end of the elevator car control panel, a CAN (controller area network) bus interface of the master control panel, a CAN bus interface of the shaft control panel and a CAN bus interface of the elevator car control panel are in communication connection by CAN buses, the first interface is electrically connected with a switching value signal input end of the master control panel, and the second interface, the CAN bus interface of the shaft control panel and the CAN bus interface of the elevator car control panel are in communication connection by CAN buses; the second control panel is provided with at least two motor driving devices; and the selector switch is used for selectively leading one of the motor driving devices to be electrically connected with one of the first interface and the second interface. The different motor driving devices can be switched, and accordingly different testing requirements can be met.
Owner:SHANGHAI STEP ELECTRIC
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