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32results about How to "Avoid strong vibration" patented technology

Safety brake iwth relative delayed brake force

A safety brake for a load receiving means of a lift, in which at least one brake wedge (13) penetrates into a tapering gap between a resiliently supported pressure body (14) and a guide rail (1) of the load receiving means (2) and thereby generates a braki ng force, is equipped with a device (18) which limits the stroke of the brake wedge and thus the braking force in dependence on the retardation occurring at the load receivi ng means.
Owner:INVENTIO AG

Extended interaction klystron and production method thereof

The invention belongs to the field of high-performance terahertz radiation sources, and provides an extended interaction klystron and a production method thereof. The extended interaction klystron comprises an input resonant cavity, an output resonant cavity, and N intermediate resonant cavities. The input resonant cavity is communicated with an input waveguide. The output resonant cavity is communicated with an output waveguide. Electron beam channels communicated with one another are arranged at the centers of the input resonant cavity, the output resonant cavity and the N intermediate resonant cavities. The cycle lengths of the resonant clearances of the N intermediate resonant cavities are different or partially different. N is a positive integer greater than 1. The problem that the existing extended interaction klystron has a very narrow working band and high in-cavity power density is solved. An electron beam is tuned by different resonant frequencies when passing through the intermediate resonant cavities. Thus, the working bandwidth of the whole device is improved.
Owner:NORTHWEST INST OF NUCLEAR TECH

Shock absorption device of electromechanical equipment

The invention discloses a shock absorption device of electromechanical equipment. The shock absorption device comprises a base. Supporting pads are arranged at the four corners of the bottom of the base. Telescopic rods are arranged on the two sides of the upper surface of the base. A mounting plate is arranged at the top ends of the telescopic rods. The two sides of the upper surface of the mounting plate are movably connected with limiting plates. A connecting plate is arranged at the middle position of the bottom of the mounting plate. The two sides of the connecting plate are rotationallyconnected with connecting rods through rotating shafts. The bottoms of the connecting rods are rotationally connected with moving rods through the rotating shafts. According to the shock absorption device, through cooperation between the mounting plate and the limiting plates, the shock absorption device can achieve adjusting conveniently according to the size of the bottom of the electromechanical equipment, and therefore the device is suitable for mounting of different sizes of electromechanical equipment; and through cooperation between arranged fixed bocks and kidney-shaped holes, the limiting plates can be fixed conveniently, and therefore the electromechanical equipment is fixed firmly, the electromechanical equipment is prevented from greatly shaking in the work process, and the stability of the electromechanical equipment is improved.
Owner:潘科峰

Flow path switch control device

The invention discloses a flow path switch control device which is used for control systems, such as heating ventilating and air conditioning, refrigeration and the like. In the prior art, because the pressure of the upper part of a piston instantaneously lowers at the moment that a pilot valve is switched on and off, a larger pressure difference is formed between the upper part and the lower part of the piston to push the piston to move so as to generate strong impact with a piston stopping component, and the service life of a product and the operation stability of a refrigeration system are influenced. The flow path switch control device comprises a fluid inlet, a fluid outlet, a valve device and a pressure balance control loop, wherein the valve device is arranged between the fluid inlet and the fluid outlet; the pressure balance control loop is also provided with a regulation device for alleviating the pressure variation of fluid flowing through the pressure balance control loop when the flow path switch device is opened and closed, so that the flow path switch control device is stable when being switched on and off, the problems of intense vibration and high noise at the moment of high differential pressure movement are solved.
Owner:ZHEJIANG SANHUA CLIMATE & APPLIANCE CONTROLS GRP CO LTD

An electric power company's data storage cabinet and method for storing data

InactiveCN105877214BEasy to findGet the number of copies quicklyBook cabinetsFittingElectric machineOperating system
The invention discloses a reading-check-billing data storage cabinet of an electric power company. The reading-check-billing data storage cabinet comprises a combined cabinet body, a main console and a data transfer vehicle, wherein the combined cabinet body comprises multiple storage units; the main console comprises a controller and a data storage system; the data storage system comprises a data delivery mechanism, a data outlet, a data reception mechanism, a data inlet, a data filing mechanism and a data recycling part; the data transfer vehicle comprises a bottom plate, a motor, a roller, a bracket and a support plate; a connection rope is arranged on the support plate; a pulley is arranged at the top end of the bracket; a coiling wheel is arranged in the bottom plate; an output shaft of the motor is sleeved with a sleeve; a connecting rod is sleeved in the sleeve; a second driven gear is arranged on the coiling wheel; a driving gear is arranged on the output shaft of the motor; and a telescopic mechanism is arranged on the connecting rod. The reading-check-billing data storage cabinet has the following beneficial effects: the reading-check-billing data is convenient to search, and each piece of data can be registered, recorded and filed by the administrator.
Owner:DONGA POWER SUPPLY CO STATE GRID SHANDONG ELECTRIC POWER CO

Method for eliminating air-suction vortex at water inlet of pumping station under condition of beeline layout of gate and station

The invention discloses a method for eliminating air-suction vortex at the water inlet of a pumping station under the condition of beeline layout of a gate and a station, and belongs to the technical field of hydraulic engineering pumping stations. The method is characterized in that the aim of eliminating the air-suction vortex at the water inlet of the pumping station is fulfilled by controlling large-whirl flow in a pumping station fore bay caused by a cross flow rate with piers of a bridge for a trash-eliminating machine on the water inlet side of the pumping station; specific to the aim of eliminating the air-suction vortex at the water inlet of the pumping station, the bridge for the trash-eliminating machine is arranged at a position which is 4D0 away from an inlet cross section of an inflow runner of the pumping station, the number of holes is 2 times the number of pumping station units, and the central lines of the piers are aligned with central lines of separating piers at the water inlet of the pumping station in a plane direction; partition walls are arranged between a check gate and the pumping station; the position, length and width of the bridge for the trash-eliminating machine and the lengths of the partition walls can be adjusted in a certain range. By adopting the method, the air-suction vortex at the water inlet of the pumping station under the condition of beeline layout of the gate and station can be effectively eliminated; the method has important significance to safe and stable running of the pumping station.
Owner:YANGZHOU UNIV

Device and method for preventing cavitation and vibration of underground filling pipeline

PendingCN112096450ASolve the problem of energy consumptionSolve the obvious liquid cavitation phenomenonMaterial fill-upCavitationBuffer tank
The invention discloses a device and a method for preventing cavitation and vibration of an underground filling pipeline. The device is composed of a buffer tank, a collecting hopper and an accident pool. The method comprises the five steps of pressure relief chamber building, pressure relief device erecting, auxiliary facility installing, filling pipeline connecting and accident emergency treatment. According to the device and method, a special pressure relief device is arranged between a pumping pipeline and a self-flowing pipeline, the pumping pipeline which is closed in the whole process is converted into the pumping pipeline and the self-flowing pipeline which are open and relatively independent, and therefore the overall energy consumption of a pipeline conveying system is reduced, the phenomena of liquid flow cavitation, negative pressure, cavities and the like of the closed pipeline are avoided, cavitation and strong vibration of the filling pipeline are prevented, and the conveying safety and stability of the filling pipeline are guaranteed. The device and method have the advantages of being simple in structure, high in practicability, small in investment and capable of reducing energy consumption.
Owner:CENT SOUTH UNIV

Multifunctional handheld drilling machine for construction

The invention discloses a multifunctional handheld drilling machine for construction. The multifunctional handheld drilling machine for construction structurally comprises a main hand shank, an auxiliary hand shank, a drilling machine perpendicularity auxiliary device, a drill bit, a snap ring, a machine body and a shoulder rest. One end of the machine body is connected with the shoulder rest, andthe other end of the machine body is provided with the drill bit. Compared with the prior art, the multifunctional handheld drilling machine for construction has the beneficial effects that the drilling machine can drill holes and collect drilling cuttings simultaneously, facilitate cleaning, effectively prevent the drilling cuttings from being splashed anywhere and from injuring an operator; thehand shanks adopt novel structures, the air can be circulated through the space to facilitate quick heat dissipation of the hands of the operator and the hand shanks, and heat of the hand shanks canbe prevented from being transferred to the drilling machine; hollow shank bodies can be cooled through cooling liquid, the hands are further prevented from getting hot and sweating, the hollow shank bodies can maintain cleanliness, antiskid outer shanks can keep dry to prevent bacterium breeding, and the service life of the drilling machine can be prolonged; and the multifunctional handheld drilling machine for construction is additionally provided with a noise reduction and shock attenuation device, has the shock attenuation and noise reduction functions, protects hearing of the operator against damage and prevents noise pollution.
Owner:安徽锦拓建筑工程有限公司

Self-balancing type anti-vibration spin dryer tube for impeller type washing machine

The invention discloses a self-balancing type anti-vibration spin dryer tube comprises a base, wherein the upper end of the base is rotationally connected with a tube body, a plurality of balancing cavities are formed in the side wall of the tube body, a plurality of liquid storage cavities in communication with the balancing cavities are further formed in the side wall of the tube body, the liquid storage cavities are filled with balance weight liquid, an exhaust groove is formed in the side wall of the base, a sliding plug is connected into each liquid storage cavity in a sealed and slidingmode, a driving device for driving balance weight liquid to flow is installed in the exhaust groove, and exhaust pipes in communication with the liquid storage cavities are embedded in the inner wallof the tube body. By arranging the balancing cavities, the liquid storage cavities, the balance weight liquid and the driving device, when the certain side of the spin dryer tube is heavier after thespin dryer tube rotates, the balance weight liquid can be guided into the balance cavity on the opposite side to obtain balance of the overall mass of the spin dryer tube, so that strong vibration during high-speed rotation is avoided, the service life of the washing machine is prolonged, and meanwhile, clothes can be dewatered more thoroughly.
Owner:郑州市墨策实业有限公司

Intelligent anti-theft box for oil unloading hole of oil storage tank

The invention relates to an intelligent anti-theft box for an oil unloading hole of an oil storage tank; an oil drain valve of the oil storage tank is arranged in the anti-theft box; a circuit board formed by a power supply module, processors, a control module, an acquisition module, a general packet radio service (GPRS) module, a ZIGBEE module and a high-frequency transceiver module is arranged on a platform in the anti-theft box; a central lock is arranged at the middle lower part of a cover of the anti-theft box; a central lock hole is arranged on an anti-theft box body at the part corresponding to the central lock; a main power supply and a backup power are connected with a power supply interface of the processor M1 by the power supply module; a travel switch, a vibration sensor and a high-frequency receiver are connected with an input interface of the processor M1; an output interface of the processor M1 is connected with a relay and a buzzer alarm; the relay is connected with the central lock; the processor M1 is connected with serial ports; the serial ports are respectively connected with the ZIGBEE module and a circuit formed by the GPRS module and the processor M2; and the GPRS module and the processor M2 are connected with a control console.
Owner:SHANDONG SHENGLI TONGHAI GRP DONGYING TIANLAN ENERGY SAVING SCI & TECH CO LTD

Border glue coating method

The invention discloses a method for coating frame glues. The method comprises the following steps that: a glue injector injects the glues continuously from a first starting point, coats the frame glues on edges of a plurality of liquid crystal panels, and then returns to the first starting point. In the method, the glue injector injects the glues continuously and coats the frame glues on the plurality of liquid crystal panels, so that time for coating the frame glues on the plurality of panels is shortened, and production efficiency is improved greatly.
Owner:SHANGHAI TIANMA MICRO ELECTRONICS CO LTD

Projector convenient for calibrating projection position and good in stability

The invention discloses a projector convenient to calibrate a projection position and good in stability. The projector comprises a projector body, lifting mechanisms, a fixing mechanism and an air passage. A bottom plate is fixed with the lower surface of the projector body through bolts. A rotating rod is mounted below the middle position of the bottom plate. A supporting plate is arranged on theouter side of the rotating rod. A rotating mechanism is mounted below the rotating rod. The lifting mechanisms are installed at the four corners of the outer edge of the supporting plate correspondingly. A mounting box is connected below the lifting mechanisms. The fixing mechanism is connected with the lower portion of the mounting box. A lifting motor is mounted in the mounting box. A transverse plate is fixed on the outer surface of the inner side of the mounting box. An air pipe is mounted on the lower surface of the transverse plate. A micro air pump is fixed on the middle of the upper surface of the transverse plate, and a connecting pipe is mounted at the joint of the micro air pump and the air pipe. According to the invention, the accuracy of adjusting the calibration projection position of the projector is improved, and the projector is adsorbed on a desktop through negative pressure, thereby facilitating the improvement of the fixing stability of the projector.
Owner:厦门卓旭智能科技有限公司

Well-logging instrument and well-logging base nose thereof

The invention discloses a well-logging instrument and a well-logging base nose thereof. The well-logging instrument integrates the functions of a spontaneous potential well-logging instrument, a mud resistivity well-logging instrument and the well-logging base nose, so that the equipment integration level is improved, the well-logging instrument is structurally simplified, and the overall length of the well-logging instrument is decreased. The well-logging base nose comprises an upper joint and a shock absorption portion. The upper joint is used for connecting an upper component of the well-logging instrument. The shock absorption portion gradually contracting from top to bottom is connected on the lower portion of the well-logging instrument and comprises an emitting electrode, an integrated electrode, a first measuring electrode and a second measuring electrode which are insulated mutually, wherein the integrated electrode integrates a spontaneous potential electrode and a receiving electrode, the receiving electrode and the emitting electrode form a measuring electric field, the first measuring electrode and the second measuring electrode are positioned in the measuring electric field so as to obtain mud resistivity according to own resistance, and the spontaneous potential electrode is connected with a ground electrode so as to detect spontaneous potential.
Owner:WELLRAY TECH CO LTD

Anti-rolling device for automobile

The invention discloses an automobile anti-rolling device, which comprises a chassis, a left wheel and a right wheel, an axle is connected between the left wheel and the right wheel, and a left block and a right block are respectively connected on the left side and the right side of the axle The middle part of the axle is slidingly connected with a slider, the left end of the slider is connected with spring A, the other end of spring A is connected with the right end of the left block, the right end of the slider is connected with spring B, the other end of spring B is connected with the left end of the right block, the chassis The middle part of the lower end is connected with a fixed block, the middle part of the fixed block is connected with a left connecting rod and a right connecting rod, the lower end of the left connecting rod is connected with the left stopper, the lower end of the right connecting rod is connected with the right stopper, and the lower part of the right side of the left connecting rod is connected with a left fixing block. block, the right end of the left fixed block is connected with spring C, the right end of spring C is connected with left buffer block, the lower left side of the right connecting rod is connected with right fixed block, the left end of right fixed block is connected with spring D, and the left end of spring D is connected with right buffer block; The invention has the advantages of low cost, strong stability and riding comfort, high safety and strong anti-rolling performance.
Owner:HENAN POLYTECHNIC

Water hammer-resistance damping device of pipeline

The invention discloses a water hammer-resistance damping device of a pipeline. The damping device is connected to the tail end of the pipeline and comprises a connecting body, a horn-shaped channel which is through front and back is formed in the connecting body, the small end of the channel is an inlet end, the large end of the channel is an outlet end, the inlet end of the channel is in sealedbutt joint with the tail end of the pipeline, a buffer block is arranged at the position, close to the outlet end, in the channel, the inner end of the buffer block extends into the channel and makescontact with the inner side wall of the channel in a sealed mode, a buffer cavity is formed in the middle of the outer end of the buffer block, a through hole and a plurality of blind holes are formedin the bottom of the buffer cavity, the buffer cavity communicates with the channel of the connecting body through the through hole, and the outer end of the buffer block extends out of the outlet end of the channel and blocks the outer end of the buffer cavity through a blind plate. The device has the advantages that the water hammer phenomenon can be effectively prevented and relieved, and a pipeline system is protected.
Owner:CHINA TOBACCO ANHUI IND CO LTD

Vibration and noise reduction device and operation method thereof

The invention discloses a vibration and noise reduction device and an operation method thereof. The vibration and noise reduction device comprises a compressor body, a four-way valve, a fastening mechanism and a vibration isolation and noise reduction cylinder. The four-way valve is provided with an exhaust connector and an air return connector, and the exhaust connector and the air return connector are both connected with the compressor body through pipelines. The compressor body, the four-way valve and the fastening mechanism are all located in the vibration isolation and noise reduction cylinder. The fastening mechanism comprises an installation assembly used for installing the four-way valve and a fastening belt, the two ends of the fastening belt are connected with the installation assembly, and a size-adjustable sleeving part is formed between the fastening belt and the installation assembly. And the installation assembly is fixed on a shell of the compressor body through the fastening belt. The device can reduce the vibration amplitude of the four-way valve, is favorable for protecting the pipelines and avoiding fatigue fracture of the pipelines, and meanwhile can effectively reduce the operation noise of a refrigeration workpiece.
Owner:GUANGZHOU M UNIVERSE AIR CONDITIONING TECH DEV

Screening device for processing grain ultrafine powder

The invention relates to the technical field of grain ultrafine powder screening, and discloses a screening device for grain ultrafine powder processing, which comprises a base and a screening box, the base is connected with a hanging bracket positioned at the top through two vertical support frames, and a telescopic hose A for feeding is communicated between the top of the screening box and the hanging bracket; the screening box is movably arranged between the hanging bracket and the supporting frame, a penetrating fine powder filter screen is arranged at the bottom of the screening box, a powder guiding cover fixed to the bottom wall of the fine powder filter screen is connected to the lower portion of the fine powder filter screen in a covering mode, a discharging port of the powder guiding cover is communicated with a material collecting box fixed to the top of the base, and an exhaust fan with a filter screen at an air inlet is arranged on the right side wall of the material collecting box. A motor is fixed to the left supporting frame and pushes a connecting plate connected with the bottom of the screening and filtering box through two movable rods. The problems that when fine powder is accumulated, the density is large, rapid discharging is difficult, the screening difficulty is large, and large particles and impurities can block screen holes, and work is seriously affected are solved.
Owner:WUHAN POLYTECHNIC UNIVERSITY

Stirring device for road and bridge construction

The invention discloses a stirring device for road and bridge construction, which comprises a stirring box, an elliptical inlet is arranged at the bottom of the stirring box, vulcanized rubber is arranged on the inner wall of the box, a stirring rod is arranged at the bottom of the box, and the stirring rod There is a semicircular stirring piece and a square stirring piece on the top, a retractable support is provided on one side of the mixing box, an opening is provided on the other side of the box, and the opening is connected with a rubber pipe, and the rubber pipe is provided on one side There is a cement box, the outer wall of the box is provided with a water injection port, one side of the cement box is provided with an opening, the opening is connected with the rubber pipe, the other side of the cement box is provided with an opening, and the inside of the cement box is provided with Cleaning device, the inner wall is provided with a water tank, the cement tank and the mixing box are fixed on the iron cart, the bottom of the iron cart is equipped with an engine, and the iron cart is surrounded by tires, the beneficial effect is that the noise is low and the cleaning is convenient , easy to transport, simple and convenient to use, has good economic and social benefits, and is suitable for popularization and use.
Owner:DONGTAI JIANDONG MACHINERY MFG

Safety protection device special for aluminum plate production cold rolling mill and using method

The invention relates to the technical field of cold rolling mills, and discloses a safety protection device special for an aluminum plate production cold rolling mill and a using method. The safety protection device comprises a protection column, clamping bases are fixedly connected to the two sides of the protection column, positioning blocks are fixedly connected inside the clamping bases, sliding ways are fixedly connected inside the positioning blocks, and reset springs are fixedly connected inside the sliding ways; a movable contact on a movable plate is in contact with a static contact on a fixed plate, so that the static contact is in contact with the movable contact, a circuit on an electromagnet is switched on, the electromagnet attracts a permanent magnet in a locking block, the permanent magnet drives the locking block to slide towards the inner side, the locking block slides into a clamping groove, and the locking block locks the protection column and the clamping bases; the protection column is fixed by the clamping bases, strong vibration is avoided, safety of the protection device in a working process is improved, the device can prevent strong vibration in a using process, and the device can be flexibly disassembled and moved when not used.
Owner:江苏金汇铝板带有限公司

Anti-vibration oil immersed transformer

The invention relates to an anti-vibration oil immersed transformer. The anti-vibration oil immersed transformer comprises an oil tank and a transformer, wherein the oil tank is filled with transformer oil; the transformer is immersed in the transformer oil; a close cover is arranged at the upper end of the oil tank; a high voltage wire terminal and a low voltage wire terminal running through theclose cover are arranged at the upper end of the transformer; an oil supplementing port is formed in the upper end of the oil tank; an oil discharging port is formed in the side wall of the lower endof the oil tank; mounting bases are arranged at the bottom of the oil tank; damping devices are arranged between the mounting bases and the oil tank; and lifting lugs are arranged at the upper end ofthe oil tank. The anti-vibration oil immersed transformer is simple in structure, the damping devices are additionally arranged between the oil tank and the mounting bases, and the oil tank is avoidedfrom generating strong vibration to guarantee that cooling oil inside the oil tank does not outflow, so that the service life is prolonged.
Owner:扬州罗蒙特自动化设备有限公司

Measuring device for civil engineering construction

The invention discloses a measuring device for civil engineering construction. The measuring device comprises a base and a level gauge, wherein four corners of the bottom end of the base are connected with casters through buffer mechanisms; the four corners of the base are in threaded connection with positioning bolts; side plates are vertically fixed on two sides of the upper end of the base; a mounting plate is arranged between the two side plates; an adjusting mechanism is arranged between the mounting plate and the base; a limiting mechanism is arranged on one side of the bottom end of the adjusting mechanism; a supporting mechanism is arranged at the front end of the mounting plate; guide blocks are fixedly connected to two sides of the mounting plate; side grooves are formed in opposite sides of the two side plates; and guide plates are vertically fixed in the two side grooves. The measuring device disclosed by the invention has the beneficial effects that the measuring device can adapt to level gauges of different specifications and is high in adaptability, the height of the level gauge can be adjusted, the measuring device is conveniently adapted to actual conditions, and the operation is convenient. When the staff needs to record measurement data, the supporting plate is pulled out, the record book is supported by the supporting plate, the staff can conveniently record the work, and the functionality is high.
Owner:HUBEI UNIV OF TECH

A method of eliminating the suction vortex of the water inlet of the pumping station under the condition of the in-line layout of the gate station

The invention discloses a method for eliminating an air suction vortex at a water inlet of a pumping station under the condition of an inline layout of gate stations, and belongs to the technical field of hydraulic engineering pumping stations. Its characteristics are: using the pier of the sewage cleaning machine bridge on the water inlet side of the pump station to contain the large swirling flow caused by the lateral flow velocity in the forebay of the pump station, so as to achieve the purpose of eliminating the suction vortex at the water inlet of the pump station; The purpose of the suction vortex, the cleaning machine bridge is arranged at 4D0 away from the inlet section of the pump station water inlet, the number of holes is twice the number of units in the pump station, and the center line of the pier is the same as the water inlet of the pump station. The center line of the partition pier is aligned in the plane direction; a partition wall is set between the control gate and the pump station; the position, length and width of the cleaning machine bridge and the length of the partition wall can be within a certain range. Adjust within. The invention can effectively eliminate the suction vortex of the water inlet of the pumping station under the condition that the gate and the station are arranged in a straight line, and has great significance for ensuring the safe and stable operation of the pumping station.
Owner:YANGZHOU UNIV

Intelligent anti-theft box for oil unloading hole of oil storage tank

ActiveCN103010620BWith remote transmission functionAvoid strong vibrationLarge containersTransceiverControl engineering
An intelligent anti-theft box for the oil discharge port of the oil storage tank, the oil storage tank oil discharge valve is installed in the anti-theft box, and the circuit is composed of a power supply module, a processor, a control module, an acquisition module, a GPRS module, a ZIGBEE module and a high-frequency transceiver module The board is placed on the platform set in the anti-theft box. There is a central control lock in the middle and lower part of the anti-theft box cover, and a central control lock hole is provided at the corresponding place between the anti-theft box body and the central control lock; the main power supply and the backup power supply pass through the power supply module. Connect with the power supply interface of the processor M1, connect the travel switch, vibration sensor and high-frequency receiver with the input interface of the processor M1, connect the output interface of the processor M1 with the relay and the buzzer alarm, and connect the relay with the central control phase lock The processor M1 is connected to the serial port, the serial port is connected to the circuit composed of the ZIGBEE module, the GPRS module and the processor M2, and the GPRS and the processor M2 are connected to the console.
Owner:SHANDONG SHENGLI TONGHAI GRP DONGYING TIANLAN ENERGY SAVING SCI & TECH CO LTD

Method for coping with fall of spent fuel container, device and loading well/cleaning well

The invention discloses a method for coping with the fall of a spent fuel container. Vibration reduction setting is performed in a loading well or a cleaning well, so that the impact energy can be absorbed when the spent fuel container falls. The invention also discloses an anti-fall impact device. The device includes a vibration reduction unit and a supporting unit; the vibration reduction unit includes a vibration reduction body, and the supporting unit is arranged outside the vibration reduction unit to protect the vibration reduction unit. The invention further discloses the loading well / cleaning well in a nuclear fuel plant. The loading well / cleaning well comprises a wall body, a bottom plate, and the above anti-fall impact device, and the device is arranged on the bottom plate. The loading well / cleaning well can reduce the impact force of the fall and avoid causing strong vibration, thereby effectively reducing the impact effect on a main structure and peripheral equipment.
Owner:CHINA NUCLEAR POWER ENG CO LTD

Hoisting type universal rotor critical rotating speed testing device

The invention relates to a hoisting type universal rotor critical rotating speed testing device which comprises a high-speed motor, a coupler, a bearing pedesatl, a flange support and an equipment support. An output shaft of the high-speed motor is connected with the coupler through a flexible connecting disc structure, and the coupler is installed in the bearing pedestal through a high-speed bearing; the bearing pedestal is connected with the flange support through a circumferential vibration damper, and the flange support is fixed on the equipment support. According to the invention, by adopting the flexible connecting disc and the circumferential vibration damper structure, strong vibration generated by the rotor at the critical rotating speed can be overcome during an overspeed experiment, so that the mechanical safety performance of the rotor after passing through the critical rotating speed can be tested.
Owner:上海电动工具研究所(集团)有限公司
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