13002 results about "Oil storage" patented technology

The invention relates to the technical field of oil level monitoring, in particular to an oil level state judgment method and system for an oil conservator transformer, and the method comprises the following steps: collecting an oil level signal through a sensor, carrying out the real-time filtering of the collected oil level signal, adjusting a filtering coefficient through the environmental noise level, and recording and outputting the adjusted oil level signal. According to the method, the filter coefficient is adjusted to adapt to environmental noise changes, high adaptability of oil level signal processing is achieved, the system can recognize specific frequency components related to normal operation and potential fault states of equipment through frequency domain analysis, the monitoring meticulous degree and the early warning capacity are greatly improved, and by dynamically monitoring the frequency component changes, the system reliability is improved. According to the transformer oil level monitoring method, abnormity can be detected at the initial stage, equipment faults are effectively prevented, the real-time monitoring capacity is enhanced, the response speed to complex changes is increased, and comprehensive safety guarantee is provided for transformer oil level monitoring.

The invention discloses a transformer oil conservator oil level online monitoring method and system based on an ultrasonic technology, and belongs to the field of power equipment monitoring. The oil level of the transformer is related to equipment safety, a traditional monitoring means has defects, and false oil level is prone to misleading operation and maintenance. With the ultrasonic technology as the core, the multi-band ultrasonic sensor transmits and receives ultrasonic waves to the oil conservator, obtains oil level signals and collects oil temperature and load data at the same time. The oil level is calculated by means of ultrasonic propagation time and a multi-band weighted average algorithm, and the false oil level is discriminated according to oil temperature compensation and load correlation. Through signal conditioning and acquisition, microprocessor operation and wireless communication transmission, data is stored and analyzed in a background monitoring system. The innovative system architecture and algorithm realize high-precision oil level measurement, strong interference resistance, intelligent false oil level discrimination and real-time remote monitoring. On-site tests show that the system stably and accurately monitors complex working conditions, effectively prevents oil level abnormal faults, improves the operation and maintenance efficiency of the transformer and the power supply reliability of a power grid, and firmly guarantees the reliable operation of a power system.

The invention provides a semi-active control type shock absorber for a railway vehicle, and relates to the technical field of shock absorbers, an oil storage cylinder is sleeved outside a working cylinder, and an oil storage cavity is arranged between the oil storage cylinder and the working cylinder; the piston valve assembly is fixedly arranged at one end of the piston rod, the piston rod and the piston valve assembly are both arranged in the working cylinder, and the piston valve assembly moves in the working cylinder through the piston rod and divides the internal space of the working cylinder into a compression cavity and a stretching cavity; a guide assembly is arranged on one side of the working cylinder, an oil storage cylinder base is arranged on the other side of the oil storage cylinder and the other side of the working cylinder, and the oil guide pipe is arranged in the oil storage cavity. The electromagnetic regulating valve assembly, the electromagnetic switch valve assembly and the damping valve assembly are all fixedly arranged on the side face of the oil storage cylinder base. According to the semi-active control type shock absorber, the requirements of different dampers at the same speed of a vehicle can be met, the semi-active control type shock absorber gradually replaces an original passive shock absorber so as to meet various types of damping requirements, and more comfortable and excellent riding experience is brought to passengers.

Methods and systems are provided for a lubricating apparatus for a gearbox. In one example, an apparatus may include a curved shroud enclosing a portion of a gear, a first side oil collector and a second side oil collector, an oil reservoir having a first end fluidly coupled to the first side oil collector and a second end fluidly coupled to the second side oil collector, and a metering orifice fluidly coupling the oil reservoir to the curved shroud. The oil reservoir further includes at least two U-turns between the first end and the second end, and walls of the oil reservoir having multiple cavities.

The hydraulic damper comprises an oil storage container, a piston is arranged in the oil storage container, and the piston divides the oil storage container into a first oil cavity and a second oil cavity; a piston rod; one part of the first circulating oil way and one part of the second circulating oil way are shared with each other, and damping parts are arranged on the parts and used for applying damping force to the hydraulic oil flowing through the damping parts; at least one first valve is arranged on the first circulating oil way and used for limiting hydraulic oil in the first circulating oil way to only flow from the first oil cavity to the second oil cavity in a one-way mode; at least one second valve is arranged on the second circulation oil way and used for limiting the hydraulic oil in the second circulation oil way to only flow from the second oil cavity to the first oil cavity in a one-way mode. The two-way damping control device has the beneficial effects that under the condition that only one damping valve is used, two-way damping control can be achieved when the artificial limb moves, and the wearing comfort and attractiveness of the artificial limb are improved.

The invention discloses a fitting for an electric power circuit, and particularly relates to the technical field of circuit installation, the fitting comprises an equipment main body, a connecting part, a lubricating part and an oil storage part, the equipment main body comprises a ship body provided with a first through hole, the lower side of the ship body is provided with a fixing assembly, and the connecting part comprises a movable plate provided with a second through hole and a first rotating shaft; a second rotating shaft is inserted into the second through hole, the lubricating part comprises a rotating ring and a shell, a control assembly and an oil spraying assembly are arranged in the shell, an oil inlet is formed in the shell, the oil storage part comprises an oil storage box, and an oil conveying pipe is arranged on the lower side of the oil storage box. According to the suspension clamp, the lubricating part and the oil storage part are arranged, the lubricating part can automatically adjust use of lubricating oil, abrasion between parts is reduced, the service life of the suspension clamp is prolonged, waste of the lubricating oil can be reduced, the lubricating oil can be conveniently added by technicians through the external oil storage box, the service life of the suspension clamp is prolonged, and the use cost is reduced.

The invention discloses a heat exchanger with a protection function for biodiesel preparation, and relates to the technical field of heat exchangers, the heat exchanger comprises heat exchange equipment and further comprises a protection device, a control device is fixedly installed on the front side of the heat exchange equipment, a liquid inlet pipe is fixedly installed on the left side of the heat exchange equipment, and a placing frame is fixedly installed on the left side of the heat exchange equipment; wherein the protection device comprises a connecting pipe, an adjusting hole, an adjusting frame, an L-shaped rod, a protection groove, a rotating rod, a protection disc and a limiting groove, the L-shaped rod moves upwards to be separated from the adjusting hole and release limiting of the connecting pipe, and after limiting of the connecting pipe is released, the connecting pipe is manually pushed to move in the direction close to the oil storage tank for butt joint; and through the protection disc, loosening or displacement of the connecting pipe caused by the fact that an operator accidentally touches the L-shaped rod can be effectively prevented, and therefore the risk of leakage or accidents is reduced.

The invention relates to the technical field of damping and shock absorption, in particular to a damping-adjustable composite shock absorption system for textile printing and dyeing equipment, which comprises a bottom plate and a top plate, a first shock absorption unit and a movable plate are mounted between the bottom plate and the top plate, and a first buffer spring is fixedly connected between the top plate and the movable plate; a second damping unit is installed between the movable plate and the bottom plate. During damping, vibration is buffered through telescopic deformation of a first buffer spring and a second buffer spring, oil liquid is pushed to flow in backflow oil pipes through vertical movement of a first piston rod, vibration energy is consumed through friction force between the oil liquid and the backflow oil pipes, and vibration of a machine body is restrained; the different backflow oil pipes are switched to be communicated with the oil storage cavity through the switching mechanism, the longer the backflow oil pipes are, the larger the on-way resistance when oil passes through the backflow oil pipes is, the higher the damping force is, and the damping device can be conveniently installed on textile printing and dyeing equipment with different vibration intensities for damping.

The invention discloses a monitoring method and a control device for pressure abnormity of a storage tank and oil storage equipment. The storage tank pressure abnormity monitoring method comprises the following steps: acquiring an internal air pressure value of a first storage tank and an external air pressure value of the first storage tank, and subtracting the internal air pressure value from the external air pressure value to obtain an air pressure difference P delta 1; when P [delta] 1 is equal to 0 and first set time is reached, the internal air pressure value of the first storage tank and the external air pressure value of the first storage tank are obtained again, and the air pressure difference P [delta] 4 is obtained by subtracting the internal air pressure value from the external air pressure value; and when P delta4 is equal to 0, first reminding information used for reminding that the breather valve is closed abnormally is sent. According to the storage tank pressure abnormity monitoring method, the control device and the oil storage equipment, the internal and external pressure change of the storage tank can be monitored, the abnormal condition of the breather valve can be recognized in time, an operator is reminded to dispose in time, and the operation safety of the storage tank is improved.

The utility model relates to the technical field of extruder gearboxes, discloses a multistage stable transmission type double-screw extruder gearbox, solves the problem that lubricating oil is inconvenient to coat in the transmission process, and comprises a gearbox main body, an oil injection mechanism used for injecting oil into an internal gear is arranged in the gearbox body and comprises an oil storage box, a bottom groove is formed in the bottom face of the oil storage box, a compression rod is slidably connected into the bottom groove, a compression chamber is formed in the oil storage box, and one end of the compression rod is fixedly connected with a compression plate. A limiting plate is slidably connected into the inner groove, a sliding block and an extrusion plate are fixedly connected to one side of the limiting plate, a liquid storage chamber is further arranged in the oil storage box and filled with lubricating oil, a pressure valve is fixedly connected to the bottom face of the inner wall of the liquid storage chamber, and a liquid conveying pipe and an atomization nozzle are fixedly connected to the bottom face of the oil storage box. The effect of conveniently lubricating the gear in the transmission process is achieved.

The utility model discloses a cable stranding device, which relates to the technical field of cable processing, and comprises a bottom frame, the top of the bottom frame is fixedly connected with a first fixing plate, the interior of the first fixing plate is fixedly connected with an oil brushing disc, the interior of the oil brushing disc is provided with a plurality of mounting holes, the interior of the oil brushing disc is provided with an oil brushing assembly, and the oil brushing assembly is fixedly connected with the bottom of the bottom frame. A first fixing plate is fixedly connected to the top of the bottom frame, a second fixing plate is fixedly connected to the top of the bottom frame, a twisting assembly is arranged in the second fixing plate, a supporting rod is fixedly connected to the top of the bottom frame, a collecting ring is fixedly connected to the top of the supporting rod, a fixing frame is fixedly connected to the top of the first fixing plate, and an oil storage tank is fixedly connected to the interior of the fixing frame. According to the utility model, the lubricating oil can be uniformly coated on the surface of the cable through the oil brushing assembly, so that the friction between the cable and the through hole and the collecting ring can be reduced, the cable is prevented from being damaged, and the abrasion of the through hole and the collecting ring is also reduced.

An engine oil pan has side walls and bottom wall that define an oil reservoir. The bottom wall has a plurality of attachments positions and oil drain plug with an open end below the lowest portion of the bottom wall. An oil pickup is secured to the bottom wall at the plurality of attachment positions. The plurality of attachment positions have threaded inwardly and outwardly projecting portions for receiving threaded fasteners.

The invention relates to the field of blast furnace pulverized coal preheating. A blast furnace pulverized coal preheating system comprises a coal injection workshop, a nitrogen heater, a common pulverized coal heater, a compressed nitrogen tank, a blast furnace, an oil storage tank, an expansion tank, a waste heat exchanger, a heat conduction oil pump, a PLC control system and a sound-light alarm device. Pulverized coal discharged from a coal injection workshop is heated in a common pulverized coal heater through waste heat of a blast furnace, and the heated pulverized coal enters the blast furnace to be combusted. The combustion characteristic of the preheated pulverized coal is remarkably improved, and the pulverized coal can be quickly combusted after entering a main combustion chamber of the blast furnace, so that the conventional three-section combustion process of heating, ignition and combustion is broken through.

The invention provides a flat heat dissipation axial magnetic flux motor which comprises a heat dissipation assembly, and the heat dissipation assembly comprises a rotor disc, a rotor shaft, an inner core, a first flow channel, a second flow channel, a piston, an oil storage box, cooling fins, fan blades, a flow guide pipe, a sealing plate, a mounting disc and a magnetic block. And the rotor shaft is fixedly connected to the interior of the rotor disc. The rotor shaft drives the mounting disc to rotate, cooling oil flows into the first flow channel on the right side, then sequentially flows through the right flow guide groove, the left flow guide groove, the first flow channel on the left side, the second flow channel and the flow guide pipe and finally circulates into the oil storage box, the cooling oil circulates along with continuous rotation of the rotor disc, and then heat dissipation of the rotor can be achieved; cooling oil flowing into the oil storage box from the flow guide pipe makes contact with the cooling fins, the cooling oil can be cooled through the cooling fins, efficient cooling of the rotor is achieved by adopting an internal circulation mode of the cooling oil, and installation and use of the motor are not affected.

The invention discloses a carbon dioxide oil displacement burying multi-objective optimization method based on a self-adaptive agent model, and relates to the technical field of oil reservoir injection and production optimization. The method comprises the following steps: firstly, constructing a carbon dioxide flooding embedding injection-production optimization model, then acquiring a plurality of initial samples by adopting Latin hypercube sampling to construct a database, preferably selecting each target agent model based on the database, and then generating a Pareto leading edge by utilizing a dominating class search strategy, a decomposing class search strategy and an index class search strategy; and in the optimization stage, a preferred potential solution is searched according to a hypervolume improvement maximum strategy, numerical simulation is carried out, the database is updated until a preset number of times is reached, each iteration optimization scheme, an oil reservoir net present value and a carbon dioxide burying amount are output, and multi-target optimization of carbon dioxide flooding burying is completed. According to the method, the carbon dioxide flooding multi-objective optimization efficiency is improved, meanwhile, the search direction is dynamically adjusted through the hyper-volume evaluation index, the Pareto frontier is accelerated, and accurate prediction of the carbon dioxide flooding development scheme is achieved.

The invention relates to the technical field of dirt cleaning, in particular to a cable self-cleaning assembly for a ship winch, which is mounted on a rack of the ship winch and comprises two mounting frames, a connecting rod is fixed between the two mounting frames and penetrates through a moving seat, a lead screw is screwed on the surface of the moving seat, and two ends of the lead screw are rotatably connected to the two mounting frames respectively. Two supporting plates are fixed to the top face of the movable base, a connecting plate is fixed between the top faces of the two supporting plates, two fixing plates are inserted into the surface of the connecting plate, and a wire guide roller is rotationally connected between the fixing plates and the movable base; the ship stranded wire correcting device has the beneficial effects that the position of the movable seat can be conveniently adjusted by rotating the screw rod, so that the distance between the wire guide rollers is adjusted, and ship stranded wires are corrected. And meanwhile, the cable can be automatically cleaned in the winding process through the design of the protective sleeve and the steel wire brush, the cable can be automatically oiled through the combination of the oil storage tank and the sponge core, manual intervention is not needed in the whole process, and the working efficiency is greatly improved.

The invention relates to the technical field of bearings, and discloses a ceramic angular contact ball bearing with high bearing capacity, the ceramic angular contact ball bearing comprises an outer ring, an inner ring, a rolling body, a retainer and an oil storage cavity, the outer ring is of a cylindrical structure, and the inner surface of the outer ring is in contact with the rolling body; the inner ring is positioned inside the outer ring, and the outer surface of the inner ring is contacted with the rolling body; and the rolling bodies are a plurality of spherical ceramic elements which are fixed and separated by the retainer. By optimizing the arrangement mode and material selection of the rolling bodies, the bearing has higher bearing capacity and anti-overturning performance under the high-load condition; the heat dissipation through holes are formed in the retainer, so that the heat dissipation performance of the bearing in the running process is remarkably improved, and the bearing failure risk caused by overheating is reduced; through the design of the oil storage cavity and the oil outlet micropores matched with the oil storage cavity, uniform supply of lubricating oil is achieved, and friction loss between the rolling body and the inner ring and the outer ring is reduced.

The invention relates to the technical field of gear oil injection, and provides a power plant coal mill bull gear oil spraying device which comprises an oil storage tank used for storing oil, one side of the oil storage tank is communicated with a pump body provided with two liquid outlets, the two liquid outlets of the pump body are communicated with a spraying assembly in a coal mill gearbox through oil injection pipes, and the spraying assembly is communicated with the oil storage tank. The spraying assembly is driven by an electric push rod to be stored, a cavity is formed in the other side of the oil storage tank, a motor is installed in the cavity, and two cooling pipes in the oil storage tank are located on the outer wall of the motor in a spiral mode so that energy transmission between the cooling pipes and the motor can be achieved. The phenomenon that the spray head is blocked due to exposure in air is avoided, the spraying efficiency of lubricating oil is ensured, meanwhile, the flowability and the lubricating performance of the lubricating oil are ensured through energy conversion, the lubricating effect is improved, gear abrasion is reduced, the service life of the gear is prolonged, and on the contrary, a certain cooling effect can be achieved on the motor.

The invention discloses an oil storage tank oil-water interface measurement system and method and a storage medium, and relates to the technical field of oil-water interface measurement, and the system comprises a data acquisition module, a data processing module, a decision support module and a data security module. According to the oil-water interface measuring system and method for the oil storage tank and the storage medium, a three-dimensional sensing network (distributed sensor network) is constructed by adopting a pressure sensor array and phased array ultrasonic scanning technology and combining dielectric property detection of a microwave dielectric constant sensor; the pressure, the dielectric constant, the liquid level and the vibration data in the tank body are obtained, basic data are provided for subsequent processing, the comprehensiveness of data obtaining can be improved through the sensing network, the pressure data are dynamically calibrated through Takagi-Sugeno fuzzy logic, the influence of temperature drift is effectively eliminated, and the accuracy of data obtaining is improved. The ultrasonic signals are subjected to feature enhancement through the generative adversarial network, and the emulsion layer boundary is accurately recognized.

The invention relates to the technical field of bearing seats, and discloses a self-lubricating dustproof bearing seat which comprises an upper end cover, a lower end cover hinged to the lower portion of the upper end cover, a self-lubricating mechanism and a dustproof sealing ring which are arranged in the upper end cover and the lower end cover, a shaft sleeve arranged in the self-lubricating mechanism, and a shaft core movably installed in the shaft sleeve and the dustproof sealing ring. The self-lubricating mechanism comprises an external backflow assembly rotationally connected to the inner wall of the upper end cover and the inner wall of the lower end cover and an internal backflow assembly rotationally connected to the outer wall of the shaft sleeve, a reasonable lubricating channel path is obtained through the arranged oil storage assembly, the movable assembly and the rolling assembly, it is ensured that a lubricating agent can evenly and smoothly reach all lubricating points, and the lubricating efficiency is improved. Lubricating oil in the oil storage cavity flows into the oil outlet pipe through the oil outlet groove and then flows into the oil guide groove, so that the contact faces of the rolling wheel and the bearing outer ring and the bearing inner ring are lubricated, and the effect of improving the overall operation quality and reliability of equipment is achieved.

The utility model discloses a fan self-lubricating bearing seat, which comprises a bearing seat and an oil storage tank, and two end parts of the bearing seat are respectively provided with a bearing and a mounting journal for mounting the bearing; the mounting journals are respectively connected with an end cover towards the outer side, and the end covers are annularly arranged and shield the bearings; the fan main shaft is movably mounted on the bearing seat through two bearings; the bearing seat is symmetrically divided into an upper mounting seat and a lower mounting seat along the central axis; an oil conveying hole is formed in one side of the lower mounting seat; the oil storage tank is communicated with the oil conveying hole through an oil conveying pipe; the oil storage tank is internally provided with a partition plate and is divided into a communicating cavity and an oil storage cavity through the partition plate. The self-lubricating bearing seat has the advantages that self-lubricating inside the bearing seat is achieved through the oil storage tank arranged on one side of the bearing seat, the oil way on-off device arranged in the oil storage tank and the electromagnetic valve arranged on the top of the oil storage tank; and the end cover is arranged to prevent lubricating oil from leaking, and compared with a traditional shaft seal design, the service life is longer.

A solar boat for easy collection of spilled oil and garbage of the present disclosure includes a cabin unit, a boat body consisting of a pair of ship bottoms having a structure that is symmetrical left and right and spaced apart below the cabin unit, a solar panel unit provided above the cabin unit and configured to convert solar energy into electrical energy, a collection and transfer unit provided between the pair of ship bottoms, driven by the electric energy supplied from the solar panel unit, and configured to collect spilled oil and garbage into the inside of the boat body, a garbage storage unit, and a spilled oil storage unit, wherein the collection and transfer unit comprises a rotating conveyor belt, and an oil adsorption member and a collection member that are attached to and detached from the conveyor belt, and the solar boat for easy collection of spilled oil and garbage of the present disclosure has an effect of having excellent work efficiency by simultaneously including an oil adsorption member and a collection member that are attached to and detached from a conveyor belt and simultaneously proceeding with collection of spilled oil and collection of garbage on the water, and an effect of being able to separate the spilled oil from the oil adsorption member, the collection member, and the garbage and easily move the spilled oil to the spilled oil storage unit by including a steam spray nozzle configured to spray hot steam at the end of the conveyor belt.

The invention discloses a blasting smoke dust prevention and control method and system for a large-section underground petroleum reserve cave depot, and relates to the technical field of blasting smoke dust prevention and control. The method comprises the steps that smoke dust parameter sensors are arranged in a plurality of preset monitoring areas between a charging trolley and a tunnel face in a blasting area; based on a smoke parameter sensor, smoke parameters of the multiple preset monitoring areas after blasting are obtained; on the basis of the smoke dust parameters, the time-air transportation rule of tunneling blasting dust and smoke in the blasting area is determined; and on the basis of a time-air transportation rule, determining an effective area and an injection path which need to be covered by mist spray for treating smoke dust. The technical problem that in the prior art, the dust falling efficiency is low is solved.

The invention discloses a real-time judgment method for roof collapse caused by a fire between nuclear power station oil storage tanks, and relates to the technical field of fire safety design of roof structures between nuclear power station oil storage tanks. Acquiring time sequence temperature data of the grid nodes; establishing a three-dimensional heat conduction model of the roof structure; top plate structure heating surface temperature field mapping is realized; carrying out three-dimensional heat transfer simulation on the top plate structure; analyzing the instability critical condition of the roof structure. According to the real-time judgment method for the roof collapse caused by the fire between the oil storage tanks of the nuclear power station, time sequence temperature field mapping of the heated surface of a complex roof structure between CFD numerical simulation software and FEM software in different fire scenes between the oil storage tanks of the nuclear power station can be realized; real-time structure response behaviors of the nuclear power station oil storage tank roof structure in different fire scenes are simulated, and the method can be used for fire safety design and post-disaster damage evaluation of the nuclear power station oil storage tank roof structure.

The invention relates to the technical field of engines, in particular to a turbocharger and an engine system. The turbocharger comprises a rotating shaft, an integrated bearing and a middle shell, the rotating shaft is sleeved with the integrated bearing, the integrated bearing is sleeved with the middle shell, an oil supply pipeline is arranged in the middle shell and comprises an oil supply inlet, a connecting pipeline, an oil storage chamber, a bearing chamber, an oil outlet pipeline and an oil return cavity which are sequentially communicated, and the integrated bearing is located in the bearing chamber. The oil supply inlet is higher than the bearing chamber, the oil storage chamber is lower than the bearing chamber, and the oil outlet pipeline is higher than the bearing chamber. According to the turbocharger, under the transient working condition, the oil supply amount of the bearing chamber can meet the use requirement; and under the cold start working condition, the oil supply time is short, the rotating shaft is prevented from being abraded, the service life of the rotating shaft is prolonged, and therefore the turbocharger has the long service life.

The invention provides a movable hydraulic mechanical arm and a control method, and the mechanical arm comprises a base which adopts the design of a movable chassis with an independent drive, so that the equipment moving capability is provided. The arm support assembly is formed by connecting a plurality of arm supports in series through rotary joints, and each joint is provided with a hydraulic actuator to achieve the driving function. The sensing and positioning system is responsible for obtaining the state of the mechanical arm and surrounding three-dimensional environment information and providing data support for intelligent control. The control system is arranged on the arm support and connected with the subsystems through cables, and cooperative motion control based on state information and environment information is achieved. The hydraulic system comprises three core assemblies, wherein hydraulic power units are in one-to-one correspondence with the actuators; the hydraulic execution unit is integrated on an actuator oil port valve block and comprises a servo valve, a pressure sensor and an emergency locking valve. The hydraulic auxiliary unit provides oil storage, temperature control and filtering functions. The key problems of dynamic coupling, response delay, low energy efficiency and the like are solved.

The invention relates to the technical field of building construction foundation pit excavation, and discloses a foundation pit excavation drilling device and method for building construction, the device comprises a drilling assembly, the bottom end of the drilling assembly is slidably connected with reaming assemblies in an array mode, a hydraulic driving part is arranged in the drilling assembly, and a rotating driving part is arranged at the top end of the drilling assembly; the top end of the drilling assembly is rotationally connected with a guide assembly, a hydraulic cylinder is fixedly installed on the surface of the guide assembly, and a muck guide part is fixedly installed on the inner side of the bottom end of the guide assembly. When the drill bit drills to a preset depth, an electric control valve is closed, hydraulic oil is conveyed into an oil storage barrel through an oil injection pipe, so that the hydraulic pressure in a hydraulic cavity is increased, a piston plate is driven to move downwards, a sliding column extrudes a sliding block downwards, and a crushing blade extends out of the drill bit to be matched with rotation of the drill bit to enlarge the diameter of a drilled hole; and an assembly body of the drill bit and the crushing blade moves upwards while rotating, so that the purpose of conveniently reaming after drilling is achieved.

The utility model provides a hydraulic safety valve, which relates to the technical field of hydraulic safety valves and comprises a hydraulic safety valve body, an oil storage chamber is arranged at the top of the hydraulic safety valve body, and a heating structure is fixedly connected to the outer side of the oil storage chamber and can heat hydraulic oil in the oil storage chamber. Through the design of the heating structure and the heat dissipation structure, the temperature sensor can detect the temperature of hydraulic oil in real time, when the temperature of the hydraulic oil in the oil storage chamber is too low, the heating structure can be started and heat the hydraulic oil, so that the hydraulic oil can be located at the optimal working temperature, and when the temperature of the hydraulic oil is too high, the heat dissipation mechanism can be started; and a heating medium and hydraulic oil in the heating structure are subjected to synchronous heat dissipation, so that the heating structure can recover to the optimal working temperature.

The present invention discloses a cooling type oil-immersed transformer, comprising an oil-immersed transformer body, an oil storage tank arranged on the oil-immersed transformer body and providing cooling oil therein, and a heat dissipation fin plate arranged on the outer peripheral wall of the oil-immersed transformer body; wherein an air bag for adjusting the oil pressure and a heat exchange unit for cooling the cooling oil are arranged in the oil storage tank. In the present invention, a cooling and heat exchange shell for the transformer oil is installed in the oil storage tank, and specifically a phase change material is filled in the cooling and heat exchange shell, so that the transformer oil during the peak period of electricity consumption is effectively cooled quickly to ensure the safe operation of the equipment. In addition, a first purge pipe for downward purge is installed on the heat dissipation fin plate outside the oil-immersed transformer body, and a second purge pipe is also passed through the heat dissipation fin plate, and a purge jet hole is opened on the outer peripheral wall of the second purge pipe, so that the dust attached between the heat dissipation fin plates is purged from multiple angles, so as to ensure its cleanliness, which is conducive to improving the heat dissipation efficiency.

The invention relates to the technical field of capacitor shell production, and discloses a cylindrical capacitor shell forming device and a forming technology.The cylindrical capacitor shell forming device comprises a workbench, a male die is arranged at the top of a fixing frame, the output end of an electric push rod penetrates through a bearing frame and is fixedly connected with a female die, and the top end of the female die is fixedly connected with an oil storage box; according to the cylindrical capacitor shell forming device, when extrusion forming work is carried out, the extrusion plate drives the oil conveying pipes to stretch into the oil storage box, and at the moment, lubricating oil in the oil storage box can flow to the inner wall of the female die through the oil conveying pipes; the friction force between the female die and the metal plate is reduced, and meanwhile, due to the fact that the operation of adding lubricating oil is completed in the extrusion process, the problem that floating and sinking particles are prone to being attached to the capacitor shell can be avoided, and protectiveness of the device to the capacitor shell is effectively improved.