32results about How to "Reduce routine maintenance work" patented technology

The invention relates to a regenerative power energy feedback method for an elevator and a device thereof. The device comprises an inverter, a network voltage detection unit, a network current detection unit, a DSP control unit and a direct current voltage measuring unit, wherein the inverter is formed by connecting an IGBC controllable bridge circuit with an electric reactor; the direct current output end of the variable-frequence governor of the elevator is connected with the direct current end of the IGBC controllable bridge circuit; the output voltage of the inverter is merged into a power network supplying the power for the variable-frequence governor of the elevator to work through the electric reactor; the input end of the network voltage detection unit and the input end of the network current detection unit are respectively connected to the power network supplying power for the variable-frequence governor of the elevator to work; the output end of the network voltage detection unit and the output end of the network current detection unit are respectively connected with the DSP control unit; the DSP control unit is connected with the control end of the IGBC controllable bridge circuit through an IGBT driver; and the direct current output of the variable-frequence governor of the elevator is connected with the DSP control unit through the direct current voltage detection unit.

The invention provides a computer mainboard PCIe slot function test method based on a UEFI, and relates to the field of large-scale factory tests on computer mainboard PCIe slots. The computer mainboard PCIe slot function test method comprises the following steps: on the basis of a build-in uefi shell, firstly, confirming that a first start item of a machine is boot from build-in shell; according to a mainboard specification, inserting matched PCIe cards into corresponding PCIe slots in a mainboard; writing a test PCIe configuration file, and listing information of each slot; powering on the machine from uefi shell to enter a test U-disc automatically and operate a test program, thereby acquiring information of all PCIe cards in the PCIe slots; comparing grasped data with data in PCIe configuration files PCIE.INI, wherein the test is qualified if the files are completely identical, or else the test is unqualified. By adopting the computer mainboard PCIe slot function test method, no operating system needs to be started for test, so that the test time can be shortened, and the test efficiency can be improved.

The invention discloses a computer PCIE (Peripheral Component Interconnect Express) adapter card function testing method based on a UEFI (Unified Extensible Firmware Interface) and belongs to the field of industrial large-scale testing of computer PCIE adapter cards. The method comprises the following detection steps: (1) checking a BIOS (Basic Input Output System) Setup starting sequence so that boot from build-in efi shell is taken as a first starting item; (2) starting a startup.nsh script by the UEFI and leading into a testing U disk; (3) collecting PIC information of the computer PCIE cards through a testing program; and (4) comparing the acquired PCI information with data in a PCI database, wherein when the PCI information and the data are the same, a test passes, otherwise, the test does not pass. The test of the method is carried out on a UEFI shell and an operating system does not need to be loaded, so that the testing time is shortened and the management is convenient.

The invention discloses a disposable intelligent digester system for animal cell culture. The disposable intelligent digester system comprises a disposable digester unit and an intelligent control unit, wherein the disposable digester unit at least comprises a sealed chamber that can be filled with fluid, an interception component and a stirring component are arranged in the sealed chamber, the interception component is in surrounding connection with a lower part in the sealed chamber, the interception component is at least used for causing dispersed cells to flow to a next level bioreactor and intercepting empty carriers and carriers with cells in the sealed chamber, and the stirring component is at least used for mixing the fluid in the sealed chamber. The disposable intelligent digester system disclosed by the invention omits online sterilization, online cleaning, equipment installation and debugging and other steps, simplifies the operation flows, reduces the production cost and the labor cost, and avoids the cross contamination between batches; and moreover, the digestion process is controlled by an intelligent program, so that the digestion loss rate of the cells can be as low as 2%.

The invention discloses a clamping linkage mechanism and a claw disc. Through cooperation of sheave groups and transmission pieces, clamping claws are fixedly arranged on the transmission pieces, one clamping claw is correspondingly arranged at one side of each sheave group, and the clamping claws are distributed in central symmetry with the center of a bottom plate as the center, and move along with the transmission pieces to move towards the center or away from the center synchronously so as to adjust the size of circumference along which the clamping claws are located. In the whole mechanism, only single power is needed to drive each single clamping claw, and the synchronous adjustment of the plurality of clamping claws is realized through the linkage mechanism in the claw disc. The structure is simple and ingenious, the cost is low, and the work efficiency is high.

The invention provides a reversing roughing mill rolled piece tail tracking method based on self-learning and belongs to the technical field of metal pressure processing. The method includes: calculating the residual unrolled volume of a rolled piece according to the outlet thickness, outlet width, rolling mill speed and forward slip value of the rolling mill of each pass, calculating the unrolledlength of the rolled piece according to the inlet material thickness and width of the rolling mill, and performing self-learning according to the calculation result of the residual unrolled length and the total volume of the roller piece so as to increase the tail residual length tracking precision of the rolled piece. By the method, rolled piece tail length can be precisely tracked without a metal detector.

The invention discloses a VDI and VOI architecture virtual machine fusion system and a starting method. The VDI and VOI architecture virtual machine fusion system comprises a system management module,a WEB background management module, a VOI terminal module, a server virtualization module and a VDI remote access client module, wherein the system management module is used for carrying out user, terminal and mirror image authentication, responding a terminal access request, and controlling a server virtual machine, system resource distribution and mirror image synchronization according to a terminal request; the WEB background management module is used for providing a manager configuration interface; the VOI terminal module is used for providing a user login interface, managing local mirrorimages, managing mirror image synchronization and managing a local virtual machine and related resources; the server virtualization module is used for the server virtual machine and related resources; and the VID remote access client module is used for providing a user access interface and providing an operation system desktop for users. The starting method comprises a VOI terminal starting method and a VID terminal starting method. According to the system and the method, VID and VOI architectures are organically fused, and through mirror image synchronization, resources of terminals and servers can be sufficiently utilized, so that the effects of using everywhere and utilizing sufficiently are realized.

The invention discloses a method for upgrading a RAID card firmware automatically. The method comprises the steps that a Linux system is started up through the internet, the type of a RAID card is detected, and the upgrading environment of the RAID card firmware is judged; if the RAID card firmware can be upgraded on the Linux system, the RAID card firmware is directly upgraded on the Linux system; if the RAID card can only be upgraded on a DOS system, the DOS system is started up through the internet, and the RAID card firmware is upgraded on the DOS system. Compared with the prior art, the whole firmware grading process needs no person participation, the error probability is lowered, and the test time and the human cost are saved.

The invention belongs to the technical field of masks, and particularly relates to a virus isolation type mask. At present, various masks, including medical masks, N95 masks and various electric masks, cannot completely and effectively isolate virus infection. The invention aims to provide a mask capable of effectively isolating viruses. According to the mask, a functional structure for killing viruses through ultraviolet rays is additionally arranged in an air filtering system of the mask, so that viruses including novel coronavirus can be instantly inactivated, a wearer can normally work and freely move without virus infection, and the mask is suitable for preventing virus infection when public plague occurs. The mask can filter particles and harmful gas in air, and a user can use the mask to prevent air pollution.

The invention discloses a method for determining the storage alkalinity of engine coolant, and belongs to the technical field of non-metallic material analysis and detection. The method relates to a reagent, an instrument and a specific determination method. The reagent includes concentrated hydrochloric acid, phenolphthalein, ethyl alcohol of 95%, absolute ethyl alcohol, sodium hydroxide, ultrapure water, potassium biphthalate and methyl red. The instrument comprises an oven, an electronic scale, an alkali burette, an acid burette, a dryer, a transfer pipette, a measuring cylinder, a beaker, a volumetric flask, a conical flask, a glass rod and a dropping bottle. According to the method, potential healthy and environmental harm caused by using a calomel electrode can be avoided, tedious daily maintenance work to the electrode can be avoided as well, the errors of the determination result and the detecting instrument determination result are small, the detection requirement for the storage alkalinity content of the engine coolant can be met, and simpleness and quickness are achieved.

The invention provides a bridge track longitudinal isolation device in the field of Railway Bridge and track engineering. The invention comprises in sequence a longitudinal partition wall between a steel track and a bridge, a slide layer and a limit support outside an abutment; both the longitudinal partition wall and the slide layer are arranged in the direction of the bridge length; ends of the longitudinal partition wall and the slide layer are put across the abutment and extended in the direction of the limit support; the longitudinal partition wall and the slide layer are identical in width, and the width is bigger than that of the steel track. The invention can be utilized to convent longitudinal strength between steel tracks and bridges into rather low friction force before transmitting the friction force to the limit support. Therefore, the invention can greatly improve stress conditions between bridges and steel tracks; besides, temperature regulators can be eliminated for use on steel tracks, so as to reduce volume of routine maintenance work for steel tracks. Moreover, the invention can optimize structural dimensions of bridges, considerably reduce casting work volume of abutments and bridge piers, and therefore, save construction investment and lower construction cost.

The invention discloses a bottle bottom separating device of a vertical tube type bottle making machine. The device further comprises clutches, a power mechanism and a driving mechanism, wherein the clutches comprise an upper clutch and a lower clutch which both sleeve the lower part of a bottle falling tube; the upper clutch is connected with a bottle falling pipe bearing, and the upper clutch isconnected with a power mechanism of the bottle making machine for driving the upper clutch to rotate; and the lower clutch is movably connected with the bottle falling pipe and is connected with thecontrol end of the driving mechanism for controlling the clutch to be opened and closed. When a manipulator takes a bottle, chuck jaws stop in a static state. The separating device is suitable for thevertical tube bottle making machine and is used for making the bottle bottom.

The invention relates to a fully-sealed volatilization prevention device for an emergency drainage pipe of a floating roof and a method. The device and the method mainly solve the problem of water seal volatilization in the prior art. The fully-sealed volatilization prevention device for the emergency drainage pipe of the floating roof comprises a floating ball, a connecting rod, a cover plate, aconnector, a pin, a support, an emergency drainage port, the emergency drainage pipe, a fixing bolt, a zipper, a filter screen, a floating roof upper surface, a bolt gasket, a cover plate sealing gasket and sealing rings. The device is arranged above the emergency drainage pipe of the floating roof of an outer floating roof storage tank and is used for preventing volatilization of a water seal medium in the emergency drainage pipe and oil in the tank, by means of the technical scheme, the problem is well solved, and the device can be used for emergency drainage of the floating roof of the outer floating roof storage tank.

The invention discloses an oil-immersed gas-insulated tap changer, comprising a switching switch and a tap selector, wherein the switching switch is on the top, the tap selector is on the bottom and the middle is mechanically connected, and is integrally placed into a transformer oil tank from a flange hole of an upper cover of the transformer; the tap selector is of a cage structure, and has a plurality of wiring terminals on it, which are used for connecting with the transformer coil taps and directly immersed in the insulation medium of the transformer oil tank. The tap changer is characterized in that the switching switch comprises a cylindrical sealing gas chamber and a switching core sealed in the cylindrical sealing gas chamber, wherein the cylindrical sealing gas chamber is filledwith an insulating gas, and the switching core of the switching switch uses the insulating gas as an insulating medium.

The invention discloses a hot-process magnesium reduction device in the field of smelting magnesium, in particular a metallic magnesium reduction device adopting electricity as a heat source. The device is a monosomic magnesium reduction device consisting of a magnesium reduction pot, a crystallizer (5) and a forepart cooler (7), wherein the outer surface of a pot body (3) of the magnesium reduction pot is laid with an insulating protective layer (2), and then a magnesium reduction electric heater (1) is arranged on the insulating protective layer (2). The device has the advantages of accurate control on reduction temperature, flexible production operation, reduction of operation labor intensity, high efficiency and energy conservation.

The invention discloses an interface based computer fault diagnosis method, belongs to the server fault diagnosis field, and aims at quickly and automatically testing server fault, displaying the fault cause through an interface, and timely handling the fault. According to the technical scheme, the method comprises the following steps: (1) manufacturing a U flash disk self-starting system; (2) programming a diagnosis interface and a related diagnosis testing module; (3) starting the U flash disk starting system in step (1); operating the diagnosis system; collecting error information; analyzing the error information; and automatically generating html format result; and (4) viewing the fault cause according to the html format result obtained in step (3), and timely handling the fault.

The invention relates to a cold box core shooting device, which comprises a core box possessing a sand core cavity, a sand shooting mechanism and a sand adding mechanism. The sand shooting mechanism comprises a shooting chamber, a movable inlet valve cover arranged on the upper of the shooting chamber and capable of moving along a horizontal direction, an air blowing mechanism connected with the movable inlet valve cover. The sand adding mechanism comprises a sand adding hopper arranged on the right upper of the shooting chamber, a butterfly valve arranged on the lower part of the sand addinghopper for controlling the opening and shutting. When sand is added by the core shooting device, the movable inlet valve cover is positioned at one side of the shooting chamber, the butterfly valve is opened, the adding sand hopper is communicated with the shooting chamber; when sand is shot by the core shooting device, the butterfly valve is closed, the movable inlet valve cover is compacted on the upper of the shooting chamber. According to the invention, a sealed butterfly valve and a sand shooting cylinder mechanism in the present cold box core shooting device are eliminated, a sandblasting phenomenon can be avoided during former sand shooting, the work of daily equipment maintenance is minimized and the stability of the equipment is improved; in addition, the maintenance workload during the operation can be mitigated.

The invention discloses an improving method for stirring practicability of a rear reaction tank of a first brine system, and relates to the technical field of chlor-alkali process improvement. According to the improving method, three DN25 pipelines are installed in the rear reaction tank to penetrate into the bottom, compressed air (0.5MPa) is introduced, an aeration reaction is carried out so that sodium carbonate and calcium chloride can be fully reacted, reaction time is prolonged, calcium carbonate can be better settled down, and therefore quality of brine is guaranteed; investment of manpower, financial resources and material resources is saved; energy conservation and consumption reduction are achieved; and daily maintenance work is greatly reduced, and the maintenance cycle is greatly prolonged.

The invention relates to a stress release type refractory lining body for a smelting area of a steel-making converter. The stress release type refractory lining body comprises a furnace lining working layer and a furnace lining permanent layer in a furnace shell, the furnace lining working layer is composed of an annular structure formed by sequentially arranging a first arc area masonry, a parallel area masonry and a tail arc area masonry, and the furnace lining working layer is positioned between a furnace bottom annular brick layer and a furnace body annular brick layer for smooth cambered surface transition connection; and the masonry in each area is formed by high-temperature refractory bricks with completely same longitudinal sections in a surface-surface seamless fitting manner, and stress absorption buffer layers are arranged in middle layers of the first arc area masonry and the tail arc area masonry. According to the refractory lining body, the innovative structure that turning of a masonry surface is realized by a double-arc masonry body and transition between two arcs is realized by a parallel masonry surface is adopted, the middle layers of the arc masonry bodies are respectively set as the stress absorption buffer layers, therefore, the structure can maximally guide thermal expansion of the whole converter lining to a furnace mouth sealing material layer without dead angles, and stress release of the converter lining body in a thermal state is realized to the greatest extent.

The invention discloses a chain shaft and shaft sleeve structure of an automatic woodworking feeder. The chain shaft and shaft sleeve structure comprises a chain shaft, wherein a mounting sleeve is arranged on the outer surface of the chain shaft; grooves are formed in the left side and the right side of the inner wall of the mounting sleeve; rolling bearings are mounted in the grooves; and the inner walls of the rolling bearings are movably connected with the outer surface of the chain shaft. According to the chain shaft and shaft sleeve structure, the chain shaft and shaft sleeve structure is changed into a structure of the chain shaft, the rolling bearings and an oil seal, so that the defects can be effectively overcome; sliding friction is changed into rolling friction, so that the friction coefficient is reduced, and abrasion is reduced; the oil seal can prevent grease from being liquefied and lost, so that sufficient lubrication during friction of the bearings and a shaft neck isguaranteed; meanwhile, dust particles are prevented from entering a friction pair, so that abnormal damage such as pulling and clamping of a friction surface is avoided; and the chain shaft, the rolling bearings and the oil seal are of a completely closed transmission structure, so that grease can be not added for a long time, daily maintenance work is reduced, and great convenience is brought toa user.

The invention discloses a cam type optical disc taking and placing device and a taking and placing method, the cam type optical disc taking and placing device comprises a driving device and a connecting rod cam mechanism connected with the driving device, and the connecting rod cam mechanism comprises a connecting rod connected with the driving device and a cam disc arranged on the connecting rod;the cam disc is perpendicular to the connecting rod, and an elastic component is arranged on the side face of the cam disc. The cam type compact disc taking and placing device is simple in structure,convenient to operate, efficient, practical and high in reliability. According to the method for grabbing and distributing the optical disks in batches, the standard optical disks are ingeniously distributed and collected one by one after being grabbed at a time, the efficient performance of mass optical storage equipment can be improved, and daily maintenance work is reduced.

The invention belongs to the technical field of helicopter structural parts, and particularly relates to an external plug protection cover of a helicopter. The external plug protection cover is characterized in that lug pieces (1) used for installation are arranged at the two ends, the lug pieces (1) are connected with outer skin of the helicopter through installation holes (3) by means of rivets, the protective cover is fixed on the helicopter, an opening for plugging and pulling a plug is formed in the front end of the protective cover, and a small lower edge (2) is designed at the opening.

The invention relates to a LED lamp for expressway illumination, which structurally comprises a two-way lamp post, a supporting ring, a vertical rod, a control box and an indication board, the bidirectional lamp post is horizontally fixed to the top of the vertical rod through the supporting ring at the bottom, the right side surface of the vertical rod is connected with a control box shell through bolts, and the indication board is horizontally fixed to the right side surface of the vertical rod; an internal circuit of the two-way lamp post is connected with an internal control terminal of the control box through a wire; the LED lamp has the beneficial effects that the inner lamp support is controlled to rotate through an adjusting frame body, lamplight enables the protective shells on the two sides to emit light according to the color shown by the road sign, a driver in the distance can quickly distinguish according to color guidance, an inner lamp support can flicker under the condition that the detection camera detects that a steering lamp is turned on, and a rear vehicle in the distance can change lanes in time; and the situation of rear-end collision caused by too high follow-up speed is avoided.