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26results about How to "Affect life" patented technology

Jacket inlet connecting piece and quenching heat exchanger with same

The utility model relates to the technical field of petrochemical equipment, in particular to a jacket inlet connecting piece and a quenching heat exchanger with the jacket inlet connecting piece, which comprises a lower central pipe and an inlet outer pipe, the lower central pipe is positioned in the inlet outer pipe, a lower annular channel with a sealed bottom is formed between the lower central pipe and the inlet outer pipe, and the lower central pipe and the inlet outer pipe are communicated with a transversely arranged jacket medium introduction pipe; the heat exchanger is characterized in that the axis of the jacket medium introduction pipe and the axis of the inlet outer pipe are arranged in a staggered mode, and the inner wall of the jacket medium introduction pipe and the inner wall of the inlet outer pipe are arranged in a tangent mode. The cooling medium flows spirally after entering the lower annular channel, solid impurities are difficult to deposit and gather under the spiral thrust of the cooling medium, and the cooling medium flows more smoothly in the lower annular channel, so that the flow state is improved, the impact is reduced, and the equipment stability is improved. Moreover, the upper port of the lower central pipe and the jacket medium introduction pipe are staggered, namely, a welding seam between the lower central pipe and the inner sleeve is staggered from the jacket medium introduction pipe, so that the service life of the welding seam is prevented from being influenced by washing of high-pressure saturated water.
Owner:THE CHALLENGE PETROCHEM MACHINERY CORP

Opening limiting mechanism for hinge in sliding door

The utility model relates to a hinge opening limiting mechanism in a sliding door, and relates to the technical field of automobile design and manufacturing. The sliding door middle hinge opening limiting mechanism comprises a limiting support arranged on a middle sliding rail and a buffer block arranged on the limiting support. The limiting support is composed of a horizontal support and a side support, the horizontal support is located above the tail end of the middle sliding rail, the side support is located behind the tail end of the middle sliding rail, and the buffer block is clamped to the side support; the buffer block comprises a clamping head and a buffer body, a necking part is arranged between the clamping head and the buffer body, and the clamping head penetrates through the mounting hole in the side bracket and is clamped on the side bracket through the necking part. According to the opening limiting mechanism for the middle hinge of the sliding door, disassembly and assembly of the middle hinge of the sliding door cannot be affected, meanwhile, the middle hinge can be limited in the maximum opening state, and the effect that the sliding door cannot fall off from the rear end of a guide rail is achieved.
Owner:IAT AUTOMOBILE TECH

Leveling device for environmental geological engineering observation

The invention relates to the technical field of level gauges, and discloses a leveling device for environmental geological engineering observation, the leveling device comprises a level gauge base, the top of the level gauge base is connected with an adjusting column through a foot screw, and the top of the adjusting column is connected with a level gauge body. When the level gauge base is used and the foot screw is rotated to adjust the position of the level gauge body, the foot screw drives the first gear to rotate so as to drive the movable hole to rotate and move downwards, so that the lower part of the movable hole enters an inner cavity of the fixed hole to be connected with the fixed hole, and the level gauge base is connected with the bracket seat; on the basis that an original level gauge base and an original support base are fixed through bolts and connected through the threaded rod, the stability of connection between the level gauge base and the support base is improved, meanwhile, under the condition that foot screws are not reset, the level gauge base and the support base cannot be separated to be stored, and the installation is convenient. Therefore, a worker is reminded to reset the foot screw on the level gauge base.
Owner:SHANDONG PROVINCIAL COAL GEOLOGICAL PLANNING EXPLORATION & RES INST

Solar drainage system

The utility model discloses a solar drainage system which comprises a main drainage pipe, a filter screen plate is obliquely arranged in the main drainage pipe, a drain outlet is formed in the side, located at the lower end of the filter screen plate, of the main drainage pipe, and a solar panel is obliquely installed at the upper end of a placing box arranged above the main drainage pipe. A storage battery and a water suction pump are arranged on the two sides of the interior of the placing box correspondingly, one end of the water suction pump is connected with a water suction head through a connector and a connecting pipe, and an auxiliary water drainage pipe arranged at the lower end of the water suction pump penetrates through the placing box and extends into the main water drainage pipe. According to the solar drainage system, the drain outlet is formed in the front side of the lower end of the filter screen plate and matched with the sealing assembly for use, during drainage, the sealing assembly seals the drain outlet, so that rainwater can be drained through the main drainage pipe, and when many impurities exist, the impurities can be accumulated on the sealing assembly to pressurize the sealing assembly; and the sealing assembly opens the drain outlet, accumulated impurities are discharged, time and labor are saved, and the use practicability is improved.
Owner:HIMIN CLEAN ENERGY HLDG

Permanent magnet full cross-flow submersible pump

The permanent magnet full-cross-flow submersible pump comprises a water suction cover, an impeller rotor assembly, a stator assembly and a water drainage cover, and the impeller rotor assembly is provided with an isolation cylinder which is rotatably arranged between the stator assembly and the water drainage cover; a plurality of blades which are rotatably connected with the wheel shaft through the wheel carrier are distributed in the isolation cylinder in a surrounding mode, a motor rotor is arranged outside the isolation cylinder, the stator assembly is provided with a machine shell, the two ends of the machine shell are fixed to the stator assembly and the drainage cover respectively, and a stator iron core arranged outside the motor rotor in a sleeving mode is installed in the machine shell. A stator coil connected to a power supply through a cable is wound outside the stator iron core, so that the power factor is high, and the influence of iron-containing impurities in water is not easily caused.
Owner:李全民

Ultraviolet lamps used for curing UV inks

This utility model relates to the field of UV ink technology and discloses an ultraviolet lamp for curing UV inks, including a housing. A lamp plate is disposed inside the housing, and a fixing plate is fixedly connected to the lower surface of the lamp plate. A disassembly assembly is disposed on the inner wall of the fixing plate, comprising a locking block. The outer wall of the locking block is slidably connected to the inner wall of the fixing plate. A locking groove is formed inside the fixing plate, and a connecting plate is fixedly connected to the outer wall of the locking block. A rotating shaft is rotatably connected inside the connecting plate, and a second fixing plate is fixedly connected to the outer wall of the rotating shaft. One side of the outer wall of the second fixing plate is fixedly connected to the inner wall of the housing. In this utility model, when the lamp plate is damaged, rotating a knob easily releases the fixing plate, enabling quick removal and installation of the lamp plate. This significantly shortens equipment maintenance time, reduces downtime losses due to equipment failure, ensures the continuity of curing operations, and greatly improves production efficiency.
Owner:XIAMEN XINHAIRONG TECHNOLOGY CO LTD

A three-cylinder single-acting high-temperature anticorrosion diaphragm pump cooling device applied to coal tar conveying

The utility model relates to a three -cylinder single -action high temperature anticorrosive diaphragm pump cooling device applied to coal tar delivery belongs to diaphragm pump technical field, concretely relates to a three -cylinder single -action high temperature anticorrosive diaphragm pump cooling device applied to coal tar delivery, the utility model provides a small, cooling effect is even, inside has the disturbance effect, is convenient for maintenance, and is applicable to the high temperature diaphragm pump cooling device of coal tar delivery working condition, the utility model discloses a static mixer and cooler, its characterized in that: static mixer includes end plate, is provided with through -hole on end plate, and the one side center of end plate is provided with cylinder, and the surface of cylinder is arranged with the thin plate along the length direction of cylinder.
Owner:NFC SHENYANG PUMP IND

Pump detection TAP instrument

The invention provides a pumping detection TAP instrument, and relates to the field of transient dynamics and catalytic surface and interface research. The pumping detection TAP instrument provided by the invention comprises a sample injection pulse system, a micro reactor, a liquid nitrogen cooling system, a mass spectrum system and a vacuum system. Through the arrangement, the experiment of continuous pulse or intermittent pulse or pump-probe pulse of one or two gas molecules can be realized, so that surface chemistry and microdynamics information related to element steps can be obtained.
Owner:SHANGHAI TECH UNIV

Parking air conditioner control method and parking air conditioner

The invention relates to the technical field of air conditioning equipment, particularly provides a control method of a parking air conditioner and the parking air conditioner, and aims to solve the problems that the normal use of other electric equipment of a vehicle is affected due to the fact that an existing parking air conditioner is high in power consumption and is used under the condition that the electric quantity of a storage battery is too low and the storage battery is lack of electricity. And the service life of the storage battery is shortened. In order to achieve the purpose, the parking air conditioner is installed on a vehicle, the vehicle comprises an engine and a storage battery, the storage battery can supply power to the parking air conditioner, and the control method comprises the steps that when a control instruction for starting the parking air conditioner is received, whether the engine is in a starting state or a stopping state is judged; obtaining the electric quantity of a battery; and selectively starting the parking air conditioner according to the judgment result and the electric quantity. Through the arrangement, the parking air conditioner can be reasonably started and operated under different states of the engine, feed or power failure of the storage battery is prevented, normal use of other electric equipment of a vehicle is guaranteed, and the service life of the storage battery is prolonged.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +2

A thermal management device for proton exchange membrane fuel cell

The invention provides a proton exchange membrane fuel cell thermal management device, belonging to the technical field of battery thermal management, comprising a cooling plate and a closing plate, wherein a plurality of coolant flow channels are provided on the cooling plate, one side of the closing plate is connected to the cooling plate for closing the coolant flow channels, and the other side of the closing plate is used for placing a battery pack; a coolant inlet is externally connected to a liquid outlet of a coolant source, a magnetic temperature control valve is installed at the coolant outlet, and the opening and closing degree of the magnetic temperature control valve changes with the temperature of the coolant; by adopting a magnetic material whose magnetism decreases as the temperature rises as a control structure for the opening and closing degree of the magnetic temperature control valve, the coolant flow rate can be controlled according to the coolant outflow temperature, thereby forming a linkage relationship among the operating temperature of the battery pack, the coolant outlet temperature, and the valve opening degree, thereby being able to automatically control the battery thermal management, reducing the waste of coolant and enabling the battery to stably operate within an optimal temperature range.
Owner:GUANGDONG UNIV OF TECH

Dehumidification device for dehumidification in double-fed converter cabinet

InactiveCN222151486UGuaranteed dehumidification effectAffect lifeDispersed particle separationControl theoryPower unit
The utility model belongs to the field of dehumidification devices, particularly relates to a dehumidification device for dehumidification in a doubly-fed converter cabinet, and aims to solve the problems that condensation occurs in a power cabinet after shutdown due to overhigh humidity in the prior art, the electrical insulation performance of devices such as a power unit and a thyristor is finally affected, and faults are caused. The power cabinet comprises a back plate arranged on one side of a converter cabinet body, a heater, a power supply control assembly and a dehumidifier are installed on one side of the back plate, the heater and the dehumidifier are symmetrically distributed and independently work so as to guarantee the dehumidification effect of the whole power cabinet, and an air outlet of the heater is far away from a circuit board. The heater is installed in the reactor cabinet and is close to the thyristor and the IGBT, the heating and dehumidification efficiency is improved, the dehumidifier is installed at the bottom of the control cabinet, moisture is easy to converge downwards, dehumidification can be effectively carried out, the air inlet end of the dehumidifier directly faces the circuit board, and erosion of the moisture to the circuit board can be reduced.
Owner:ZHEJIANG WIND POWER GENERATION DEV CO LTD

A multi-channel multi-color injection mold

The invention discloses a multi-channel multi-color injection mold, which relates to the technical field of multi-color injection molding, and comprises a bottom mold, the top surface of the bottom mold is fixedly connected to a cavity mold, the top surface of the cavity mold is fixedly connected to a mold block, and a guide groove is provided on the top surface of the cavity mold. The advantages of the invention are that hard plastic and soft rubber can be injection molded at one time, which saves production time and investment cost, and at the same time, the fixation between the hard plastic and the soft rubber can be completed by natural melting without adopting other connection methods, which further saves time and cost while ensuring the fixing effect of the connection, prolonging the service life, and ensuring the quality of the product, and avoiding the simultaneous injection of raw materials, which not only avoids the blockage of the mold, but also can form the product normally, so that the opening and closing of the injection hole can be automatically controlled according to the production sequence, without the need for sensors and other components to participate in the work, avoiding the failure of electrical components to affect the life of the mold, and also avoiding the difficulty of wiring.
Owner:HONGRITA DIE SHENZHEN

Power grid distribution network fault processing device

The utility model discloses a power grid distribution network fault processing device, and relates to the technical field of network fault processing. Comprising a tool box, a first mounting box is fixed to one side of the tool box, a second mounting box is fixed to the other side of the tool box, fixing frames are inserted into the first mounting box and the second mounting box, a plurality of fixing rods are fixed to the inner walls of the bottom ends of the fixing frames, and dehumidifiers are inserted into the outer walls of the fixing rods; a plurality of limiting plates are fixed to the inner walls of the first mounting box and the second mounting box, the dehumidifiers are located between the adjacent limiting plates, and the side, away from the tool box, of the first mounting box fixedly communicates with a connecting shell. Compared with the prior art, the difference is that by starting the fan, the fan filters air through the dustproof cover, then the air enters the first mounting box, the air is dehumidified through the dehumidizer, then the air enters the tool box through the connecting port to conduct ventilation and heat dissipation on tools in the tool box, and moisture in the tool box is dehumidified through the dehumidizer.
Owner:张琳

Special welding die for arc-shaped metal plate

The invention relates to a special welding die for an arc-shaped metal plate, and belongs to the field of metal material welding. The device comprises a base (1), a side panel (2), a supporting cylinder (3), a lower partition plate (4), an upper partition plate (5), an arc-shaped clamping plate (6), a pressing plate (7) and a bolt (8). The number of the side panels (2) is two, the two side panels (2) are fixed to the left end and the right end of the base (1) respectively, a plurality of grooves are downwards formed in the top of each side panel (2), four through holes are symmetrically formed in each side panel (2), an arc-shaped clamping plate (6) is arranged between the two side panels (2), and the bottoms of the two arc-shaped clamping plates (6) are fixed to the base (1). By reasonably designing the size and the shape of the die, the arc-shaped part of the workpiece can be tightly attached to the shape of the die, the upper groove iron sinks in the die, the workpiece is kept stable in the whole welding process, the workpiece does not shake or relatively displace, the good positioning effect is achieved, and the welding precision is effectively guaranteed.
Owner:LIAOSHEN IND GRP

Temperature control system of energy storage battery

The invention discloses an energy storage battery temperature control system which comprises an energy storage EMS, an energy storage BMS, an energy storage PCS and a direct cooling unit, the energy storage BMS is used for collecting the temperature of a battery cell in real time, the energy storage PCS is used for collecting electrical parameters of the energy storage battery system in real time, the energy storage BMS and the energy storage PCS transmit the collected temperature data and electrical parameters to the energy storage EMS, and the direct cooling unit is connected with the energy storage EMS. And the energy storage EMS obtains the active power of the energy storage battery system according to the received electrical parameters, different temperature control strategies in different active power intervals are stored in the energy storage EMS, and the energy storage EMS controls the direct cooling unit to enter corresponding temperature control measures according to the received cell temperature data and the corresponding temperature control strategies. The direct cooling unit is jointly controlled through the energy storage EMS, the energy storage BMS and the energy storage PCS, multi-level judgment is adopted, accurate control over the battery temperature can be achieved, and it is guaranteed that the battery cell temperature is always within the optimal temperature range.
Owner:清安储能技术(重庆)有限公司

TDI tar concentration device

The invention discloses a TDI tar concentration device, and relates to the technical field of tar concentration, and the TDI tar concentration device comprises a composite mechanism. According to the TDI tar concentration device, through the design of the composite mechanism, materials enter the composite shell from the feeding mechanism, impurities of the materials are preliminarily filtered through the feeding mechanism and are prevented from influencing operation of subsequent equipment, and the interior of the composite shell is heated through the heater, so that gasification of the materials is promoted, and subsequent concentration is facilitated; the motor drives the central rotating shaft to rotate and drives the scraping assembly to rotate, materials attached to the inner wall are cleaned, the gasification speed is increased, the materials in the equipment are stirred through the stirring mechanism, so that the effect of promoting uniform heating of the materials is achieved, and the situation that the materials are locally overheated, consequently, the materials are heated and decomposed unevenly, and the concentration quality is affected is avoided; part of residues are discharged from the discharging pipe to the outside, and finally gasified materials enter the condenser from the rising position, so that follow-up treatment is facilitated.
Owner:SHANDONG HUALU HENGSHENG CHEM IND

Liquid temperature control device

The utility model discloses a liquid temperature control device. The temperature control device comprises a temperature conveyor and a temperature control system; the temperature conveyor comprises a heating component, and the heating component is arranged in a hollow mode to form a refrigeration channel. A heat supply main body of the heating component is located in liquid to be subjected to temperature control, and the heating end of the heating component and the input end and the output end of the refrigeration channel are connected with the temperature control system. According to the temperature conveyor, the heating component in the temperature conveyor is arranged to be the hollow component, the hollow part forms the refrigerating channel, the heating and refrigerating integrated design is achieved, the situation that a heating system and a refrigerating system need to be connected with a sleeve pipeline system is avoided, system pipelines are simplified, and the complexity of system design and installation is reduced; through the structure, the problems of complicated installation, low efficiency and the like caused by separation of a heating system and a refrigerating system of a traditional liquid cooling device are solved.
Owner:SHAANXI CANCN ENERGY STORAGE TECHNOLOGY CO LTD

Wafer cutting device

The utility model discloses a wafer cutting device which comprises a base, the upper surface of the base is fixedly connected with a mounting frame, the side surface of the mounting frame is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a lead screw, the side surface of the lead screw is in threaded connection with a sleeve, and the side surface of the sleeve is in threaded connection with a second motor. And the side surface of the sleeve is fixedly connected with a guide plate. According to the structure, through cooperation of the cooling liquid box, the liquid outlet pipe, the collecting box and the filter screen, when the device cuts a wafer, cooling liquid can flow out to the cutting knife, the cutting knife is cooled, and it is avoided that the cutting knife continuously operates in a high-heat state, and the cutting precision of the cutting knife and the service life of a blade are affected; cooling liquid flowing down after cooling can wash away chippings on the placing table and flow into the collecting box together to be collected in a centralized mode, the pressure of manual cleaning is relieved, meanwhile, the cooling liquid and the chippings collected in the centralized mode are separated under the action of the filter screen, the chippings can be recycled separately, and waste is reduced.
Owner:BEIJING YUANDONG DELI ELECTRONICS

Heating furnace capable of recovering waste heat

PendingCN119289676AAvoid affecting heat transfer efficiencyAffect lifeFurnace typesIncrustation removal devices
The invention provides a heating furnace capable of recovering waste heat, and belongs to the technical field of fluid heating, the heating furnace comprises a furnace body, the furnace body is internally provided with a partition plate for dividing the interior into an upper layer and a lower layer, and the interior of the lower layer is connected with a fuel pipe, an air inlet pipe and a smoke exhaust pipe; a section of snakelike bent pipe is arranged in the inner barrel in the axial direction of the inner barrel, the snakelike bent pipe is horizontally arranged, the two ends of the snakelike bent pipe penetrate out of the two ends of the inner barrel respectively, one end of the snakelike bent pipe is connected with the end, extending out of the furnace body, of the smoke exhaust pipe, and heat conduction oil is arranged in the inner barrel; the inner cylinder is coaxially sleeved with the outer cylinder, the front end and the rear end of the outer cylinder are connected with a water inlet pipe and a water outlet pipe respectively, an annular brush is connected into the outer cylinder in a sliding mode in the axial direction of the outer cylinder, the annular brush is driven by a linear mechanism, the inner cylinder is sleeved with the annular brush, and bristles abutting against the inner cylinder are arranged on the inner side of the annular brush; and the brush is used for brushing scale formed outside the inner barrel. The heating furnace can automatically remove scale on the outer wall of the smoke exhaust pipeline for heating water, and the heating efficiency is improved.
Owner:SICHUAN RAILWAY CONSTR CO LTD

Inspection robot track assembly

The utility model relates to freight train maintenance equipment technical field, especially a kind of track assembly of inspection robot. Track assembly of inspection robot includes sleeper assembly, track and second fixing part. Sleeper assembly is provided with two steel rails for the operation of freight train, sleeper assembly includes multiple first sleepers and multiple second sleepers, first sleeper is provided with first fixing part, multiple first sleepers and multiple second sleepers are staggered along the extension direction of steel rail. Track is for the operation of inspection robot, and track is located between two steel rails. Second fixing part connects track, and second fixing part and first fixing part are connected by connecting piece, to make track lap joint on sleeper assembly.
Owner:SHENHUA RAIL & FREIGHT WAGONS TRANSPORT

Automatic machining equipment for deburring engine piston

PendingCN119489175ASolve efficient deburring problemsAffect lifeEdge grinding machinesMachiningPiston
The invention relates to the technical field of engine piston machining, in particular to automatic machining equipment for deburring of an engine piston. According to the technical scheme, the automatic machining equipment for deburring of the engine piston comprises a box body, a nanometer polishing groove, a rust removal groove, a cleaning groove, an anti-rust groove, a feeding and discharging frame, a top frame, a moving frame, a lifting frame and a backup plate; the lifting frame is located in the box body, located above the nanometer polishing groove and connected with the backup plate, the lifting frame can slide up and down to drive the engine piston, especially deburring is conducted on half-cavity workpieces such as the engine piston which is complex in shape, and waste liquid difficult to treat cannot be generated; and traditional deburring methods such as mechanical deburring and manual polishing deburring can be replaced, and the problems that workpieces with complex shapes are difficult to process through mechanical polishing and dust pollution is caused by manual polishing are solved.
Owner:中唯精密工业有限公司

Minimum quantity lubrication supply device and numerical control machine tool

The utility model provides a minimum quantity lubrication supply device and a numerical control machine tool. The minimum quantity lubrication supply device comprises a machine tool spindle with a containing groove in one end. The cutter is mounted on the machine tool spindle and internally provided with a particle supply channel; the conveying pipeline is installed in the machine tool spindle, the output end of the conveying pipeline is connected into the containing groove, and an inner-layer channel and an outer-layer channel which are not communicated with each other are arranged in the conveying pipeline; the gas inlet and the lubricating oil inlet are formed in the machine tool spindle and communicate with the outer-layer channel and the inner-layer channel through a gas conveying channel and an oil conveying channel correspondingly; the sealing bracket is arranged in the accommodating groove and is provided with a mixing cavity for connecting the inner-layer channel and the outer-layer channel; the premixing unit is arranged in the mixing cavity, a premixing cavity is formed in the premixing unit, one end of the premixing unit is provided with an oil gas inlet communicated with the premixing cavity, and the other end of the premixing unit is provided with a first filtering structure communicated with the premixing cavity; gas and lubricating oil are input into the premixing cavity through the gas conveying channel and the oil conveying channel to be premixed, and an oil-gas mixture forms aerial fog particles in the mixing cavity through the first filtering structure and is output out of the tool through the particle supply channel.
Owner:GUANGDONG INST OF SCI & TECH

Formaldehyde catalyst and preparation method thereof

The invention provides a formaldehyde catalyst and a preparation method thereof, and belongs to the technical field of formaldehyde catalyst preparation methods. According to the method, spraying is matched with uniform doping of silicon dioxide into the catalyst, so that the specific surface area of the iron-molybdenum catalyst is reduced, the loss speed of molybdenum in catalytic reaction is effectively reduced, the influence on the service life of the catalyst due to excessive carbon deposition is prevented, the heat dissipation performance of the catalyst is improved, paraformaldehyde generated due to accumulation of reaction heat is reduced, and the service life of the catalyst is prolonged. Therefore, the yield of formaldehyde is improved.
Owner:CHINA CATALYST HLDG CO LTD

Working roller bearing

ActiveCN224283234UEasy to disassemble and checkEasy to disassembleBearing componentsWork rollClassical mechanics
The utility model relates to a working roller bearing which comprises an outer sleeve unit, an inner ring and a retainer assembly arranged between the outer sleeve unit and the inner ring, the outer sleeve unit comprises two outer rings and a middle check ring, and the middle check ring is arranged between the two outer rings; a set of retainer assembly is arranged between each outer ring and the corresponding inner ring; each set of retainer assembly comprises a retainer and three rows of rolling bodies contained in pockets of the retainer; a lubricating oil hole is formed in the middle check ring in the direction from the outer diameter to the inner diameter. The outer ring adopts a long raceway type single raceway design, and the long raceway design form of the outer ring forms a retainer assembly formed by combining a plurality of rolling bodies and a retainer; during installation, each set of retainer assembly is taken as a unit to be assembled in sequence, so that the bearing is convenient to install, disassemble and inspect, the retainer assembly is easy to disassemble after the outer ring is disassembled, and the use condition of a raceway of the inner ring of the bearing is easy to observe, so that the inner ring is convenient to replace regularly in time, and the method has small influence on the precision of a roller.
Owner:WAFANGDIAN BEARING GRP STATE BEARING ENG TECH RES CENT CO LTD +1

Anti-deformation and anti-pollution manufacturing process for graphite thrust pad of large shielding motor

The invention relates to an anti-deformation and anti-pollution manufacturing process for a graphite thrust pad of a large shielding motor, in particular to the field of graphite thrust pad manufacturing, which comprises the following steps of: a, roughly machining the graphite thrust pad; b, cleaning tools; c, water pressure is applied to the graphite thrust pad; d, heating, cooling and relieving stress; e, grinding the graphite thrust pad; f, washing the graphite thrust pad; and g, cleaning and packaging. Deformation of the graphite thrust pad in the machining process is reduced, and the stability of the size of the graphite thrust pad before a motor runs is guaranteed. Meanwhile, chloride is controlled to pollute the graphite thrust pad in the machining process, the situation that the graphite thrust pad releases chloride ions to pollute the thrust disc in the motor operation process is avoided, the risk that the thrust disc generates pitting corrosion is reduced, and then the service life of the motor is prolonged.
Owner:HARBIN ELECTRIC POWER EQUIP

Self-adaptive rotating speed boundary setting method and system for suppressing vibration of high-frequency mixed tower

The invention discloses a self-adaptive rotating speed boundary setting method for inhibiting high-frequency mixed tower vibration, which comprises the following steps of: setting mixed tower basic control parameters of a wind turbine generator according to a tower resonance area control schematic diagram, correcting the mixed tower basic control parameters to obtain mixed tower correction control parameters, and setting the mixed tower correction control parameters to be used as a wind turbine generator; tower vibration energy monitoring data in a preset rotating speed interval are obtained and analyzed, a rotating speed boundary threshold value in the mixed tower correction control parameters is adaptively adjusted according to an analysis result, real-time tower vibration energy monitoring data are obtained, whether the monitoring state of vibration energy is abnormal or not is judged, and if the monitoring state is abnormal, the tower vibration energy is monitored. And if yes, adaptively adjusting the target rotating speed boundary according to the adjusted rotating speed boundary threshold. The vibration frequency of the mixed tower can be effectively reduced, so that the operation stability of the unit is ensured, the service life of the unit is prevented from being influenced due to the fact that the unit is in a large-vibration state for a long time, and power generation benefits of a mixed tower wind field are ensured.
Owner:THREE GORGES INTELLIGENT CONTROL TECHNOLOGY CO LTD