32results about How to "High operating stability" patented technology

An electrical connector includes an insulator body, a number of terminals arranged on the insulator body, and a shell surrounding the insulator body. The insulator body comprises a main body and a mating portion extending forward from the main body, the front end of the mating portion has a mating aperture, and the top and bottom sides of the mating aperture have a number of terminal grooves. Each terminal includes an elastic portion, a contact portion extending from the elastic portion, and an abutting portion located at the end of the contact portion. The terminals can be configured as to become gradually thinner toward the abutting portion.

An electrical connector includes an insulator body, a number of terminals arranged on the insulator body, and a shell surrounding the insulator body. The insulator body comprises a main body and a mating portion extending forward from the main body, the front end of the mating portion has a mating aperture, and the top and bottom sides of the mating aperture have a number of terminal grooves. Each terminal includes an elastic portion, a contact portion extending from the elastic portion, and an abutting portion located at the end of the contact portion. The terminals can be configured as to become gradually thinner toward the abutting portion.

A dual-mode drum brake assembly including a stationary backing plate opposed to a brake drum, a wheel cylinder disposed on the backing plate and having a pair of outwardly extendible pistons, an anchor fixed to the backing plate and opposite to said wheel cylinder diametrically of the backing plate, two brake shoes movably supported by the backing plate and having a first pair of adjacent ends opposite to the wheel cylinder and a second pair of adjacent ends opposite to the anchor, a parking lever disposed substantially along one of the two brake shoes and having a pivot axis perpendicular to the backing plate, at a portion thereof closer to the wheel cylinder, and a cable fixing portion closer to the anchor, and a link mechanism disposed between the parking lever and the brake shoes, and operating to move the adjacent ends of the second pair of the brake shoes away from each other, with a pivotal movement of the parking lever about the pivot axis when a torque acts on the brake drum.

An embodiment of the invention discloses a method for dynamically forecasting external air and load intelligent energy saving control. According to the method of the invention, according to a machine room air conditioning load requirement, by means of data which are supplied from an external data platform, an external weather change trend is obtained through analytical calculation; a machine room load rate trend is analyzed through load trend analysis; and finally through evaluating and analyzing whether the external weather condition satisfies a requirement, external air cooling benefit optimization is realized. According to the method, by means of the forecast external air weather condition, a fact that an external air cooling system should be started or stopped is obtained through calculation and analysis so that a machine room air conditioning load effectively utilizes external air cooling for reducing operation energy consumption of an air conditioning host. Furthermore according to the machine room equipment load change trend, the equipment load change amount is intelligently learned, thereby improving external air cooling benefit.

The invention provides a position tracking and controlling system of an azimuth axis of a giant telescope. A software system comprises upper computer software and lower computer software, wherein the software system comprises a control circuit, a driving circuit, a position feedback circuit and a protection circuit. A motor is an arc motor formed by splicing 200 pairs of extreme ultralow-speed multiple electrodes and is integrated with a load; the motor is composed of 8 unit motors; each unit motor can be independently operated or is operated in series and in parallel; a multi-phase permanent-magnet synchronous motor is composed of the two groups of unit motors; an upper computer is used for sending a resetting command and a position command, and displaying and receiving speed position information in real time and is provided with a communication port for communicating with a telescope observation control system; a lower computer adopts two controllers for controlling two sets of windings in the multi-phase permanent-magnet synchronous motor respectively. The control system is combined with bus voltage control, intelligent control and space voltage vector control; the high-precision, ultralow-speed, large-inertia and wide-speed-regulation control requirements on the giant telescope are met.

The invention provides a cover body assembly, a washing machine, a clothes dryer, a door cover body opening control method, computer equipment and a computer readable storage medium, wherein the cover body assembly comprises a casing and a door cover body; the door cover body is openably and closeably arranged at the opening part of the casing surface; the cover body assembly also comprises a triggering device, a main controller, a motor and an ejecting rod; the triggering device is arranged on the casing and is used for obtaining a work instruction; the main controller is arranged in the casing, is connected with the triggering device and is used for processing the work instruction obtained by the triggering device; the motor is arranged on the casing and is connected with the main controller; the ejecting rod is connected with the motor; the motor drives the ejecting rod to extend out or withdraw; the ejecting rod is used for ejecting the door cover body open to the preset angle; the triggering device sends the obtained work instruction to the main controller; after the main controller processes the work instruction, an operation instruction corresponding to the work instruction is sent to the motor; the motor starts and drives the ejecting rod to extend out or withdraw.

The invention discloses a wave energy-solar energy seawater desalination system and method. The wave energy-solar energy seawater desalination system comprises an oscillating floater type wave energy collection device, a water collection tank and an arc-shaped transparent condensing surface, wherein the oscillating floater type wave energy collection device is connected with the water collection tank; and the bottom of the arc-shaped transparent condensing surface is connected with the water collection tank. According to the wave energy-solar energy seawater desalination system and method which are provided by the invention, the system is simple in structure and low in operation cost; the system can be independently used, and moreover, multiple devices can be installed at the same time, so as to realize large-scale seawater desalination.

The invention relates to a riveting machine for a refrigerator side plate. The riveting machine comprises a rack, a workbench and riveting mechanisms, wherein the workbench is fixedly arranged on the rack; the riveting mechanisms are symmetrically arranged at the two sides of the workbench; a positioning frame for placing a workpiece is arranged on the workbench; each riveting mechanism comprises a lifting device and a riveting device; each riveting device comprises a lifting plate, a pedestal and a lifting air cylinder; each lifting air cylinder is fixedly arranged on the pedestal; each lifting plate is arranged on the pedestal in a sliding mode; a telescopic pole of each lifting air cylinder is fixedly connected with the corresponding lifting plate; each riveting device is fixedly arranged on the corresponding lifting plate; each riveting device comprises a riveting clamp and a closing drive assembly for driving the riveting clamp to close; and each riveting clamp is fixedly arranged on the corresponding closing drive assembly. The riveting machine can meet the requirements of simultaneously riveting at multiple positions, realizes quick riveting and greatly improves production efficiency.

The invention provides a method, device and equipment for controlling a space energy system, and a storage medium. The method comprises the steps of acquiring current wind speed information collectedby a wind speed sensor and flowing through an evaporator of the space energy system; acquiring a theoretical air suction superheat degree and an actual air suction superheat degree of the space energysystem; and adjusting the opening degree of an electronic expansion valve of the space energy system according to the difference between the theoretical air suction superheat degree and the actual air suction superheat degree and the current wind speed information. According to the method, device and equipment for controlling the space energy system, and the storage medium, the influence of windspeed is taken into consideration when the space energy system is adjusted, and certain compensation is carried out on the basis of adjusting the electronic expansion valve based on the difference between the actual air suction superheat degree and the theoretical air suction superheat degree, so that the electronic expansion valve is accurately adjusted, the real-time optimization of the space energy system is realized, the system fluctuation is reduced, the system operation stability is improved, and the system heating efficiency is improved.

The invention provides inlet-outlet equipment and a control apparatus thereof. The control apparatus comprises a motor, an induction switch apparatus and a control circuit connected with the motor and the induction switch apparatus, wherein the motor is used for driving the inlet-outlet equipment to act; the induction switch apparatus is used for detecting the operating position and the operating state of the inlet-outlet equipment to further assist the control circuit to give out an accurate control signal to the motor; the control circuit is used for controlling, driving or braking the motor; the control circuit comprises a frequency conversion module; and the control circuit can control the rotating speed of the motor by controlling the output frequency of the frequency conversion module so as to realize stable starting, stable stopping and variable-speed operation of the motor. The control apparatus can realize slow starting, slow stopping and braking in the starting, destination-approaching and operating processes of the inlet-outlet equipment to reduce the impact torque of the mechanical structure so as to prolong the service life of the inlet-outlet equipment.

The invention relates to a roller press with a pre-pressing function. The roller press with the pre-pressing function comprises a main body, a rack arranged at a charging hole of the main body and a plurality of charging devices arranged on the rack, wherein a pre-pressing mechanism is further arranged on the rack; and the pre-pressing mechanism comprises a hydraulic cylinder fixed to the bottom of the rack, a driving roller transversely and rotatably fixed to a telescopic end of the hydraulic cylinder, a main fixed roller rotatably fixed to the bottom of the rack and arranged at the right side of the driving roller in parallel, a driving roller driving assembly arranged at the rear side of the rack and capable of driving the driving roller to rotate, and a main fixed roller driving assembly arranged at the rear side of the rack and capable of driving the main fixed roller to rotate. According to the invention, violent vibration generated when the roller press grinds fine powder can be effectively avoided, then the operation stability of the roller press is remarkably improved so as to increase the operation rate, the phenomenon that key components such as foundation bolts and roller shafts are broken due to the violent vibration of the roller press is effectively prevented, and therefore serious production accidents are thoroughly avoided.

The invention discloses a transmission device for enabling an ultrasonic three-dimensional probe transducer to rotate in a reciprocating manner. The transmission device comprises a power unit which comprises a motor and a cam shaft in transmission connection with the motor, wherein the side wall of the periphery of the cam shaft is provided with a cam groove with a height difference in space; a power output unit which comprises a transducer and a transmission shaft connected with the transducer, wherein two spiral grooves which correspond to each other in space and penetrate through each otherare formed in the power output unit; and a transmission unit which comprises a rolling shaft in contact connection with the cam groove and a sliding shaft penetrating through the spiral grooves. According to the transmission device for enabling an ultrasonic three-dimensional probe transducer to rotate in a reciprocating manner, the structure design of the transmission device is capable of converting motor uniform-speed one-way rotation into transducer forward and reverse rotation, 0-360 DEG rapid scanning is carried out on a to-be-scanned position, the scanning speed is higher, vibration issmall, noise is low, and compared with an existing radial swing scanning structure, transducer axial rotation scanning is simpler.

The invention provides a tumbling-type stirring device and method. The tumbling-type stirring device comprises a stirring tank, a center stirring system and a sidewall stirrer; a stirring space is formed in the stirring tank; the sidewall stirrer is mounted on the sidewall of a tank body of the stirring tank; the center stirring system includes a guide device and a center stirrer; the guide deviceincludes a guide barrel mounted in the stirring space; the center stirrer is extended along the length into the guide barrel; the sidewall stirrer is a structure to convey down the stirred material that is in the stirring space outside the guide barrel; the center stirrer is a structure to convey up the stirred material that is in the guide barrel. The sidewall stirrer and the center stirring system enable the stirred material to tumble up and down in the stirring tank; adding a pumping device to the outside of the stirring tank is not required; equipment cost is lowered, and stirring efficiency is effectively improved.

The invention discloses a multivariable decoupling control method applied to soil vapor extraction equipment. The method comprises the following steps: adding a decoupling matrix D (s) between a PID control matrix Gc (s) and a process model matrix G (s); and calculating, correcting and separating the fan rotating speed control quantity and the valve opening control quantity through the decoupling matrix D (s), and issuing the fan rotating speed control quantity and the valve opening control quantity to an equipment actuator. According to the method, the structure of the existing equipment can be kept unchanged, only the upper computer needs to be processed, the control value generated by the original PID equipment is calculated and corrected through the decoupling matrix, and then the control value is issued to the equipment actuator, so that decoupling control can be realized on the premise of not changing the structure of the equipment, the parameter adjustment difficulty of the PID is reduced, and the system stability and the service life are improved.

The present invention provides a metal sheet double-sided printing inspection line. The metal sheet double-sided printing inspection line comprises a first surface detecting conveying part in connection with a feeding part, a first image detecting device arranged at a position above the first surface detecting conveying part, a second surface detecting conveying part in connection with an outlet of the first surface detecting conveying part, and a second image detection device arranged at a position below the second surface detecting conveying part. The second surface detecting conveying partincludes a magnetic adsorbing device for adsorbing a metal sheet. Defects on the upper surface of the metal sheet can be detected by the first image detecting device arranged at the position above thefirst surface detecting conveying part, defects on the lower surface of the metal sheet can be detected by the second image detecting device arranged at the position below the second surface detecting conveying part, and the magnetic adsorbing device adsorbing the metal sheet completes the adsorption of the metal sheet on the second surface detecting conveying part.

The invention discloses a membrane structure sliding sealing device for a cesspool. The device is characterized by comprising a telescopic sealing membrane, pulleys, connectors and guide rails, wherein the pulleys are installed on two symmetrical sides of the telescopic sealing membrane, the corresponding guide rails are fixed on two symmetrical pool walls of the cesspool, and the pulleys on two sides of the telescopic sealing membrane are connected with the guide rails in a sliding manner; the connector is installed on at least one of the other two symmetrical sides of the telescopic sealing membrane, and the connector is connected with the pool wall of the other symmetrical side of the cesspool. Therefore, when a mud scraper moves to and fro in forward and backward directions, the telescopic sealing membranes connected with front and rear ends of the mud scraper fold and unfold slowly in sync with the mud scraper to form a sliding sealing structure, so that bad smell in the cesspool is effectively prevented from being diffused to ambient environment, and pollution to the environment is eliminated.

The invention provides a universal wheel bearing type vehicle carrying plate embracing exchange type AGV. The AGV of a non-bearing U-shaped embracing exchange type separation structure and the universal wheel bearing type vehicle carrying plate are adopted to achieve the separation and combined carrying functions; large-diameter steering wheels are adopted for the embracing exchange type separation structure AGV, so that the field applicability of the AGV can be greatly improved, the manufacturing and maintenance cost can be reduced, and the space occupation height can be greatly reduced; a motor screw driving type shear fork supporting device is adopted for achieving the stable storage state of the universal wheel bearing type vehicle carrying plate, so that the problems are solved that when a full-bearing type submerged jacking type AGV carries out lifting, translation and carrying functions on a vehicle through a four-supporting-leg arched bearing structure type transfer vehicle carrying plate serving as a middle carrier, the site utilization rate is low, the construction period is long, and the cost is high, and when a full-bearing type host of a chassis with a low ground clearance is adopted by the full-bearing type submerged jacking type AGV, the manufacturing cost and the maintenance cost are high, and the popularization is difficult.

The invention relates to a packing machine clamping and sealing heating device in the technical field of packing equipment. The packing machine clamping and sealing heating device comprises a power cylinder, a fixed base, a sliding base, a hinge block, rotating blocks, a fixed shaft and a heating block. Two first hinge shafts are symmetrically arranged on the two sides of the sliding base, second hinge shafts are arranged at one ends of the rotating blocks, second shaft holes are formed in the middles of the rotating blocks, and the axes of the second shaft holes are parallel to the axes of the second hinge shafts. The power cylinder is connected to one side face of the fixed base, a transmission shaft of the power cylinder penetrates through the fixed base and then is connected with the sliding base, the first hinge shaft is rotationally connected with the second hinge shaft through the hinge block, and the fixing shaft is rotationally connected with the rotating blocks through the second shaft holes. The two sets of rotating blocks are arranged on the two sides of the sliding base respectively, the two heating blocks are connected to the other ends of the two sets of rotating blocks respectively, and the heating faces of the two heating blocks are oppositely arranged. By applying the connecting rod type structural design, the structure is simple, the action is accurate, the distance between the two heating surfaces is effectively controlled, and the heating and plastic sealing effect on a folded film is improved.

The invention provides a humidifying air conditioner which comprises a shell, a humidifying assembly and a water storage tank. The humidifying assembly is arranged inside the shell, and the water storage tank is arranged inside the shell and connected with the humidifying assembly. A water tank door is arranged at the position, opposite to the water storage tank, of the shell. The water tank door is arranged on the shell in a detachable or openable mode, and therefore the water storage tank can be conveniently taken out of the shell. Since the water tank door is arranged, after the water tank door is removed from the shell or opened, a user can directly touch the water storage tank inside the shell so as to take out the water storage tank conveniently, the water storage tank can be filled with water or cleaned conveniently, the problems that foreign taste is produced and bacteria are bred due to the fact that the water storage tank cannot be taken out and water is stored in the water storage tank for a long time are avoided, the using time of the humidifying function in the humidifying air conditioner is prolonged, and user experience is improved.

A packaged power semiconductor device is provided. The packaged power semiconductor device may include: a direct bonded copper (DBC) substrate configured to include an upper surface in which an upper region, a middle region, and a lower region are defined; a metal tab formed to be directly connected to the upper surface in the upper region; a first lead formed to be directly connected to the upper surface in the lower region; and a semiconductor chip formed on the upper surface in the middle region.

The invention discloses a transmission device for enabling an ultrasonic three-dimensional probe transducer to rotate in a reciprocating manner. The transmission device comprises a power unit which comprises a motor and a cam shaft in transmission connection with the motor, wherein the side wall of the periphery of the cam shaft is provided with a cam groove with a height difference in space; a power output unit which comprises a transducer and a transmission shaft connected with the transducer, wherein two spiral grooves which correspond to each other in space and penetrate through each otherare formed in the power output unit; and a transmission unit which comprises a rolling shaft in contact connection with the cam groove and a sliding shaft penetrating through the spiral grooves. According to the transmission device for enabling an ultrasonic three-dimensional probe transducer to rotate in a reciprocating manner, the structure design of the transmission device is capable of converting motor uniform-speed one-way rotation into transducer forward and reverse rotation, 0-360 DEG rapid scanning is carried out on a to-be-scanned position, the scanning speed is higher, vibration issmall, noise is low, and compared with an existing radial swing scanning structure, transducer axial rotation scanning is simpler.

The invention provides central churning equipment. The equipment comprises a stirring tank and a stirring system; the stirring system comprises a stirring shaft, a flow guiding device and a power mechanism; the flow guiding device comprises a flow guiding cylinder and a supporting member, and the flow guiding cylinder is installed on the supporting member; the power mechanism comprises a power component and a power machine frame, and the power component is installed on the power machine frame; the stirring shaft is circumferentially and fixedly connected with a power output shaft included in the power component; the stirring shaft reaches the flow guiding cylinder in a length extension direction; and the stirring tank comprises an upper seal head component, assembly connection holes are formed in the upper seal head component, the supporting member runs through the assembly connection holes in a length extension direction, and the supporting member is connected with the upper seal headcomponent through seal connection pieces. According to the equipment provided by the invention, the stirring system can be installed in the stirring tank and forms a separate fluid ascending channel,so that circumferential flow spreading of the fluid when the fluid is conveyed upwards is reduced, the bottom raw material can be efficiently transported and re-stirred, and the stirring efficiency is improved.