14results about How to "Quick action" patented technology

This utility model belongs to the technical field of vacuum control equipment, and in particular to a fast-response vacuum controller, including a vacuum controller housing, a vacuum controller body, a control panel, and a valve body mechanism. The vacuum controller body is disposed within the vacuum controller housing. A damping shaft is rotatably mounted on the control panel, and a strip block is radially fixedly mounted on the damping shaft. A storage groove is provided on the top side of the vacuum controller housing, and the strip block is mounted on the inner walls of the front and rear sides of the storage groove via damping hinges. The valve body mechanism is disposed within the vacuum controller housing and connected to the vacuum controller body. The valve body mechanism includes a mounting box, a U-shaped plate, two partitions, a guide and reset assembly, a transmission assembly, an electromagnet, and a magnetically made moving plate. This utility model has a reasonable design, can quickly respond to operation commands, improve execution efficiency, and optimize the operation interface to enhance ease of use and storage.

The invention relates to the technical field of wind power integration, in particular to a low-frequency wind power plant fault ride-through control method, system and device and a medium, and the method comprises the steps: monitoring the voltage of a direct-current bus of an onshore low-frequency converter station in real time, and entering an overvoltage fault protection mode when the voltage of the direct-current bus rises abnormally; after entering the voltage fault protection mode, reducing the expected value of the AC bus voltage to be below the starting threshold voltage of an uncontrolled rectifier DRU, and calculating the quantity of energy needing to be consumed by a fan converter unloading circuit connected to the low-frequency wind power plant; according to the energy quantity, converter unloading circuits of all fans are controlled to execute unloading protection actions, whether the current value of the alternating current bus voltage of the offshore wind power plant is lower than the DRU starting threshold voltage or not is monitored, and if yes, the offshore low-frequency wind power plant enters a standby operation state; and judging whether external transmission power conditions of the low-frequency wind power plant are met or not, and if yes, exiting the overvoltage fault protection mode.

The invention provides a female genital tract repair gel containing compound enzyme and a preparation method thereof, and relates to the technical field of gynecological hygiene, the preparation method comprises the following steps: S1, material preparation: uniformly mixing chlorhexidine acetate, carbomer, triethanolamine and glycerol according to parts by mass, and adding antioxidant enzyme and lysozyme solution for dissolution; s2, emulsifying: loading into a vacuum homogeneous emulsifying machine, uniformly stirring, heating to 60-90 DEG C from normal temperature, preserving heat, cooling to normal temperature, heating to 60-90 DEG C from normal temperature for 1-1.5 hours, preserving heat for 1-2 hours, and cooling to normal temperature for 0.5-1 hour; the interior of the gel tube is filled with the glue injection sleeve through pressure pushing, the filling speed is high, filling is compact, a piston in the gel tube is reversely pushed to be outwards pushed to the adaptive height, the glue injection sleeve is automatically in sealed contact with the top end of the gel tube in the filling process, the contact speed is high, contact is tight, and no seepage exists in the filling process.

The utility model discloses a feeding and discharging jig for a clutch shell, which is characterized by comprising a jig body with a connecting flange, a fixed base plate, a three-jaw cylinder, three lengthened clamping jaws and three groups of guide mechanisms, the fixed base plate is fixedly arranged on one side of the jig body, the three-jaw cylinder is fixedly arranged on the fixed base plate, and the three lengthened clamping jaws are fixedly arranged on the three groups of guide mechanisms. Each lengthened clamping jaw is outwards and fixedly arranged on one movable pneumatic claw on the three-claw air cylinder in the radial direction, and each lengthened clamping jaw is arranged on the fixed base plate in a sliding manner through a group of guide mechanisms; the fixture has the advantages that the mode that the lengthened clamping jaws are additionally arranged on the three-jaw air cylinder is adopted, light-weight and large-size clutch shell parts can be clamped, the three-jaw air cylinder of the small specification can be selected to clamp larger-size workpieces, the overall cost of the fixture is reduced, the economical efficiency of the fixture is improved, meanwhile, the overall weight of the fixture can be reduced, and the production efficiency is improved. And the load requirement on the robot is reduced.

This invention relates to an electronic expansion valve, comprising a drive assembly, a screw, a valve needle, a valve seat, a bearing, and a valve needle spring. The valve seat has a fluid passage. The drive assembly drives the screw to rotate and move axially. The valve needle has an axial mounting hole inside, and its upper part has a bearing cavity to accommodate the bearing. The lower end of the screw extends into the axial mounting hole and is rotatably connected to the bearing, allowing for axial sliding. A screw retaining ring is provided at its lower end, and a screw annular protrusion is provided on its outer periphery. The valve needle spring is sleeved on the screw and confined between the screw annular protrusion and the upper end face of the valve needle. Downward movement of the screw compresses the valve needle spring through the screw annular protrusion, pushing the valve needle downward. Upward movement of the screw pushes the valve needle upward through the screw retaining ring against the bearing, thereby achieving stable axial movement of the valve needle to precisely control the opening and closing of the fluid passage. This structure achieves pure axial transmission through the bearing, effectively preventing the valve needle from rotating and vibrating with the screw. The compact layout of the valve needle spring significantly shortens the axial dimension of the valve body, improving transmission reliability and service life.

A self-floating and submerging positioning installation device for a steel frame using airbags for buoyancy assistance is provided on the steel frame, at least one vertical airbag is provided on each vertical side of the steel frame, at least one horizontal airbag is provided on each horizontal side of the bottom of the steel frame, a plurality of lifting rings are provided on the steel frame, the vertical airbags and the horizontal airbags are both connected with slings, a hydraulic unhooker is connected between the slings and the lifting rings, the vertical airbags and the horizontal airbags are both provided with inflation and deflation control valves, the inflation and deflation control valve signals are connected with a central inflation and deflation controller, and the four corners of the steel frame are all connected to a positioning ship with a positioning anchor cable through cables. The beneficial effects of the present invention are: it can be directly self-floating in a dock, and then floated and towed to a designated installation site, significantly reducing the dependence on ship equipment resources, reducing construction costs, and shortening the construction period.

The invention relates to a liquid tank for a hydraulic support and a pilot-operated type stop valve of the liquid tank. The pilot-operated type stop valve comprises a valve body, and a main liquid path and a pilot-operated control liquid path are arranged on the valve body; the main liquid path is provided with a main liquid inlet, a main liquid outlet and a bypass liquid return opening, and a main valve element assembly and a bypass valve element assembly are arranged on the main liquid path; the pilot control liquid path comprises a first pilot liquid path and a second pilot liquid path, an electromagnetic pilot valve assembly is arranged on the first pilot liquid path, and a manual hydraulic control pilot valve assembly is arranged on the second pilot liquid path; the main valve element assembly comprises a main valve element, a main reset spring is arranged between the main valve element and the valve body, a main pilot hydraulic control cavity is formed between the valve body and the main valve element, and a self-control flow channel is further formed in the main valve element. The manual hydraulic control pilot valve assembly comprises a pilot valve element, a manual driving structure is arranged on the valve body, a pilot reset spring is arranged between the pilot valve element and the valve body, and an auxiliary pilot hydraulic control cavity is formed between the pilot valve element and the manual driving structure. And pilot control liquid inlet stopping is achieved, action is rapid, and response is sensitive.

The invention relates to the technical field of electric arc cutting, and discloses an intelligent ship building cabin rib plate cutting device which comprises a machine shell, a traction mechanism, a main cutting mechanism and an auxiliary cutting mechanism are arranged on the machine shell, and the traction mechanism is used for feeding and conveying a steel plate to the main cutting mechanism and the auxiliary cutting mechanism; the main cutting mechanism is used for sequentially cutting a steel plate into strips and blocks, and the auxiliary cutting mechanism is used for removing one corner of a blocky steel plate before the strip-shaped steel plate is cut into the blocky steel plate. The traction mechanism, the main cutting mechanism and the auxiliary cutting mechanism are integrated, full-automatic continuous machining of cabin rib plates from flat plates to trapezoidal finished products is achieved, the overall layout is compact, actions are coherent, full-process automation of feeding, strip cutting, corner cutting, dicing and blanking is achieved through intelligent electrical and mechanical linkage control, and the production efficiency is improved. The manual intervention intensity and the skill dependence are obviously reduced, and the production safety and the standardization level are improved.

A gas supercharging device for a beverage barrel comprises a gas storage container with an opening in the upper end, an inner cover body arranged in the opening, a fixing part with a through hole formed in the middle of the gas storage container in a protruding mode, and a fixing groove formed in the bottom face of the gas storage container; a cover body is arranged at the upper end of the gas storage container; an adsorption substance is placed in the gas storage container; the pressure difference control mechanism comprises a piston arranged in the cover body, a mounting through hole is formed in the middle of the piston, a fixing sleeve with an opening in the lower end is arranged in the piston, and the lower part of the fixing sleeve expands outwards to form a first fixing step; the upper end and the lower end of the compression spring abut against the inner wall of the cover body and the upper end face of the piston; the lower part of the valve rod is inserted into the gas storage container from the through hole of the fixed part, a gas channel is formed in the upper part of the valve rod, and an annular groove is formed in the lower part of the rod body; the upper part of the valve body sleeves the lower part of the valve rod, and the upper end is inserted into the fixing groove of the fixing part; a second fixing step protrudes from the lower part of the inner wall of the valve body; the upper and lower ends of the spring abut against the bottom of the valve rod and the second fixed step; the trigger pushing piece comprises a fixed bottom plate with a through hole in the center; the three trigger pieces are arranged on the outer edge of the fixed bottom plate, and pushing parts are arranged on the lower portions of the trigger pieces and abut against the upper end face of the valve rod.

The invention discloses a double-claw rotating type mechanical arm material taking and placing device and method for horizontal machining equipment. The device comprises a support and a guide rail base, a linear guide rail and a ball screw are arranged on the guide rail base, a dragging plate on a linear guide rail sliding block is connected with a nut of the ball screw, and a rotating arm component is installed on the dragging plate; the rotating arm component drives a hollow rotating shaft through a rotating motor and a speed reducer to drive a lengthened rotating arm and a 120-degree arm to rotate, a feeding claw assembly and a discharging claw assembly are arranged on the two sides of the arm respectively, a cam follower is installed on the lengthened rotating arm through a guide support, and a guide seat and a guide block which are matched with the cam follower are arranged on the guide rail base in a matched mode. The automatic feeding and discharging device is compact in structure and small in occupied space, accurate positioning of feeding and discharging actions can be achieved, the automatic feeding and discharging action rhythm is greatly shortened, the machining efficiency of horizontal machining equipment is improved, and the equipment purchase and maintenance cost is reduced.

The invention discloses a DC power transmission subsequent commutation failure prediction method and optimization method based on a turn-off angle dynamic equation, and the method comprises the steps: obtaining a turn-off angle of an LCC-HVDC inverter side based on the output characteristics of the turn-off angle of the LCC-HVDC inverter side; based on constant direct current control, low-voltage current-limiting control, constant turn-off angle control and current deviation control of an inverter side, analyzing processes of first commutation failure and subsequent commutation failure of the LCC-HVDC system; in combination with control characteristics of low-voltage current-limiting control and fixed turn-off angle control, a transient nonlinear differential equation about a turn-off angle is obtained by analyzing dynamic characteristics of direct current and a trigger lead angle during a first commutation failure recovery period; and based on the transient nonlinear differential equation of the turn-off angle, drawing a phase diagram curve of the turn-off angle under different AC voltages and AC voltage change rates, and analyzing the phase diagram curve to obtain a criterion for predicting the occurrence of subsequent commutation failure. According to the invention, the stability and operation reliability of the system are improved.

The invention discloses a waste battery positive plate processing device which comprises a feeding belt, a base and a transfer part, a cleaning tank, an air drying tank, a soaking tank and a discharging tank are formed in the base, the transfer part is rotationally connected to the middle of the base, and the feeding belt is arranged on one side of the transfer part; the cleaning tank, the air drying tank, the soaking tank and the discharging tank are arranged on the base, the waste battery positive plates are moved through the transferring component, the moving process is automatically carried out, and the action is fast and rapid. And meanwhile, corresponding operation can be completed in each groove, and mutual influence is avoided. The machining efficiency is improved, and the working burden of workers is relieved. As the switching process is automatically carried out by the transfer part, people do not need to approach, and meanwhile, the battery positive plate can be suspended during station switching, so that liquid medicine on the battery positive plate can be drained, and the liquid medicine is prevented from splashing.

The present invention discloses a double-layer conveying system, which relates to the technical field of material transfer, including a lower conveying line, a lifting assembly, a gluing device, an upper conveying line and a transfer trolley; the lower conveying line transports the target pallet from the pallet loading station to the pallet unloading station; the lifting assembly transports the target pallet at the pallet unloading station upward to the body loading station, and then transports the target pallet loaded with the target body in the body loading station upward to the gluing station; the gluing device glues the target body at the gluing station; the upper conveying line transports the target pallet that has been glued in the gluing station to the body unloading station; the transfer trolley docks with the pallet loading station and the body unloading station to put an empty target pallet into the pallet loading station and collect the target pallet at the body unloading station. This solution uses automated equipment to replace manual labor to perform corresponding operations in the automobile body-in-white spot welding process, which can reduce labor costs, speed up the action rhythm, and improve overall production efficiency.