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493 results about "Pressure.drive" patented technology
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Anti-jamming coal mining drilling machine with drilling and multi-directional impact functions and use method of anti-jamming coal mining drilling machine
The invention discloses an anti-jamming coal mining drilling machine with drilling and multidirectional impacting functions and a using method thereof.The anti-jamming coal mining drilling machine comprises a drilling machine body, a high-pressure driving mechanism is arranged on the drilling machine body through a multidirectional guide rail mechanism, and a drilling assembly is connected with the high-pressure driving mechanism; when the drilling machine works, the high-pressure driving mechanism drives the drill rod and the drill bit to conduct rotary drilling, the high-frequency transverse vibration mechanism synchronously generates transverse high-frequency vibration, the high-pressure driving mechanism drives the drill rod and the drill bit to conduct rotary drilling, and the high-frequency transverse vibration mechanism drives the drill rod and the drill bit to conduct rotary drilling. The friction force between the drill bit and rock is reduced, debris accumulation is prevented, efficient deslagging is achieved, when hard rock or drill jamming occurs, the longitudinal vibration impact mechanism triggers longitudinal vibration, impact and drill jamming prevention functions are achieved through cooperative work of transverse vibration and longitudinal vibration, the drill jamming problem under the complex geological condition is effectively solved, the drilling efficiency and equipment reliability are improved, and the drilling cost is reduced. The device is suitable for drilling operation of mining roofs and baseplates, sides and the like.
Owner:HUATING COAL GRP CO LTD +2
Pressure-actuated switch for compressors
A pressure-actuated switch having a pressure port, a diaphragm, a range spring, an actuator plate, a differential plate, and an electrical switch. A certain pressure level moves the diaphragm against the range spring at the pressure port and thus deflects the actuator plate. The actuator plate is coupled to the electrical switch via a snap spring, wherein the electrical switch can be switched on or off via the deflection of the actuator plate and the snap spring. The differential plate controlled by a differential spring is connected to the actuator plate and supports the actuator plate in a first portion of movement, wherein the differential plate is decoupled from the actuator plate in a second portion of movement of the actuator plate.
Owner:WIKA ALEXANDER WIEGAND SE & CO KG
Automatic press-fitting system for rotor and spline shaft
The invention relates to an automatic press-fitting system for a rotor and a spline shaft, which is characterized in that a laser sensor is used for detecting the reflected light intensity difference of a tooth crest and a tooth groove, and a PLC (Programmable Logic Controller) calculates the angular deviation of the spline shaft in real time based on a difference signal and generates a rotation instruction; after receiving the instruction, the servo motor drives the spline shaft to adjust at a certain increment angle; the suction cup tool sucks the rotor end face through a vacuum suction cup and moves to the position coaxial with the spline shaft; and the servo press drives the rotor to press with constant pressure, the PLC synchronously analyzes the press-in force and displacement, when the displacement reaches a preset range, it is judged that meshing succeeds, and when the displacement does not reach the preset range, it is judged that tooth crest interference occurs, and a reverse rotation correction process is triggered. The system can realize high-precision angle detection and dynamic correction, improves the one-time success rate of engagement of the spline shaft and the rotor, is suitable for precision assembly scenes such as a new energy automobile electric drive system and an industrial speed reducer, effectively reduces the manual intervention cost, and improves the production takt time stability.
Owner:NEXTEER AUTOMOTIVE SYST (LIUZHOU) CO LTD
Equipment for testing material performance
PendingCN120971221AMaterial strength using tensile/compressive forcesMaterial strength using steady shearing forcesPressure.driveMaterials testing
The invention relates to the field of metal material testing, in particular to equipment for testing material performance, which comprises a testing platform, the testing platform is provided with a detection mechanism, a supporting mechanism, an extrusion mechanism and a power mechanism, the extrusion mechanism and the power mechanism are arranged on the supporting mechanism, and the extrusion mechanism comprises an extrusion block and a reversing unit for adjusting the orientation change of the extrusion block. At least one end of the extrusion block is open, the extrusion block is used for shearing and crushing a to-be-tested substrate, and a rotating handle is arranged on the extrusion block; and the power mechanism comprises a shearing driving unit and a pressure driving unit which are used for driving the extrusion block to move. By implementing the scheme, the test efficiency of the magnesium alloy material under various test conditions is improved.
Owner:CHONGQING INST OF NEW ENE STOR MATER & EQUIP
A motor control type variable diameter stabilizer
The application relates to the technical field of well drilling, and is a motor control type variable-diameter stabilizer, which comprises a variable-diameter mechanism, a pressure driving mechanism, a non-magnetic drill collar, a control outer shell and a variable-diameter joint which are sequentially and threadedly connected together from top to bottom, the variable-diameter mechanism comprises a righting block which is slidingly installed in an installation sliding groove, the variable-diameter joint is provided with a limiting ring, a reset spring is arranged between the installation sliding block and the limiting ring, the variable-diameter joint is provided with a plurality of sinking grooves, a piston is arranged in each sinking groove, the variable-diameter joint is provided with a liquid storage channel, a communication hole which is in communication with the liquid storage channel is arranged on the inner side wall of each sinking groove, the control outer shell is internally provided with the pressure driving mechanism, the non-magnetic drill collar is internally provided with a control system, and the pressure driving mechanism is electrically connected with the control system. The application has the advantages of reasonable and compact structure, convenient use, safety, labor saving and high efficiency, and the righting block is controlled by forming a pressure difference at the variable-diameter joint and extending.
Owner:CHINA NAT PETROLEUM CORP +1
Low-pressure drive-control intelligent servo control method for walking robot and driving device
The invention relates to the technical field of robot servo control, in particular to a low-pressure drive control intelligent servo control method for a walking robot and a driving device. The method comprises the following steps of collecting a user behavior control instruction output by a decision unit, performing behavior semantic analysis and intelligent servo parameter regulation and control, and generating a bottom layer servo control instruction; a robot foot end sensing parameter set is collected, foot end pressure distribution calculation is carried out, terrain interaction state analysis is carried out, and a real-time terrain interaction state map is constructed; robot action behavior prediction is carried out based on a bottom layer servo control instruction and a real-time terrain interaction state map, and a full-joint load distribution sensing model is constructed; and performing minimum output power demand calculation based on a full-joint load distribution perception model, performing dynamic power distribution, and constructing a low-voltage driving control engine. Driving parameters are dynamically adjusted according to environment changes and load trends, and efficient and stable motion control of the walking robot is achieved.
Owner:GUANGDONG POLYTECHNIC NORMAL UNIV
Visual mouth matching equipment for vacuum cup processing
ActiveCN223289211UWelding/cutting auxillary devicesAuxillary welding devicesVisual matchingPressure.drive
The utility model discloses visual mouth matching equipment for vacuum cup processing, which comprises a rack, and a turntable mechanism, a cup mold ejecting mechanism, a mouth matching front detection support frame and a pressing support frame which are arranged on the rack, a mouth matching front detection mechanism is arranged on the mouth matching front detection support frame, and a pressing mechanism is arranged on the pressing support frame. The cup mold ejection mechanisms comprise cup molds used for fixing vacuum cups, the cup mold ejection mechanisms are correspondingly arranged below the opening matching front detection mechanism and the pressing mechanism, and the opening matching front detection mechanism comprises a front detection camera with a lens facing the corresponding cup mold ejection mechanism. The downward pressing mechanism comprises a downward pressing driving source arranged on the downward pressing supporting frame, a downward pressing telescopic rod driven by the downward pressing driving source to move up and down, a downward pressing guiding assembly arranged on the downward pressing telescopic rod and moving up and down along with the downward pressing telescopic rod, and a downward pressing buffering assembly arranged at the end of the downward pressing guiding assembly. The utility model solves the problems of low production efficiency, unstable rate of finished products and the like in the production process of the conventional opening matching procedure of the vacuum cup.
Owner:YONGKANG QIHUI ROBOT CO LTD
Preparation device and process of hydrophobic lightweight concrete
The invention discloses a preparation device and process of hydrophobic lightweight concrete, and relates to the technical field of concrete processing, the preparation device comprises a base, a pedestal, a die holder, a vibration mechanism, a pressing plate, a hydraulic cylinder, a height adjusting mechanism and a one-way valve structure; the height adjusting mechanism communicates with the exhaust channel and is configured to drive the pressing plate to descend relative to the hydraulic cylinder through the pressure of gas entering the exhaust channel so as to reduce the distance between the pressing plate and the upper surface of the raw material. According to the invention, the special one-way valve structure is arranged on the pressing plate and matched with the up-and-down reciprocating motion of the die holder, so that air extruded from raw materials can be actively exhausted to the exhaust channel in the vibration process, and most of air can be effectively exhausted even if the vibration time is relatively short, so that the tap density of the raw materials is ensured, and the production efficiency is improved. And the layering phenomenon of light and heavy materials caused by long-time vibration is avoided, so that the overall quality and the yield of the lightweight concrete are remarkably improved.
Owner:HENAN ZHENGDA JINDUN ENVIRONMENTAL PROTECTION MATERIAL CO LTD
Cooling device, control method, compression system and air conditioner
The invention provides a cooling device, a control method, a compression system and an air conditioner, the cooling device comprises a cooling unit and a vacuum pump, the cooling unit comprises an oil storage tank and an oil conveying tank, an oil inlet and an exhaust port are formed in the upper end of the oil conveying tank, and an oil outlet is formed in the lower end of the oil conveying tank; the oil inlet pipeline communicates with the oil storage tank and the oil inlet. The exhaust pipeline communicates with the vacuum pump and the exhaust port. Under the action of the vacuum pump, air in the oil conveying tank is exhausted, so that negative pressure is formed in the oil conveying tank; under the action of negative pressure, cooling oil in the oil storage tank enters the oil conveying tank through the oil inlet pipeline, and then the cooling oil in the oil conveying tank is output through the oil outlet pipeline; the scheme that the vacuum pump replaces a traditional oil pump is adopted, cooling oil in the oil storage tank is input into the oil conveying tank through negative pressure, then the cooling oil is output through gravity, and conveying of one or more kinds of cooling oil is achieved; due to the characteristic of negative pressure driving, the device is not influenced by the viscosity of cooling oil and can be compatible with cooling oil with different rheological characteristics; when cooling oil is replaced, only the oil conveying tank and the corresponding pipeline need to be cleaned.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI
Nasal aspirator
The utility model relates to the technical field of cleaning and nursing devices, in particular to a nasal aspirator which comprises a shell, a suction nozzle arranged outside the front end of the shell and a negative pressure driving assembly arranged at the rear end of the shell, the shell is provided with an opening and closing assembly, the negative pressure driving assembly is provided with a one-way air valve, and a snot containing cavity is formed between the inner wall of the shell and the negative pressure driving assembly. The suction nozzle is communicated with the snot containing cavity through the opening and closing assembly, the opening and closing assembly is used for opening or closing communication between the suction nozzle and the snot containing cavity, the one-way air valve is used for communicating the snot containing cavity and the negative pressure driving assembly in a one-way mode, the air inlet end of the one-way air valve is communicated with an air pipe, and the air pipe extends into the snot containing cavity. According to the nasal discharge collecting device, the air pipe is arranged to stretch into the nasal discharge containing cavity, so that nasal discharge in the nasal discharge containing cavity cannot enter the one-way air valve, the situation that the nasal discharge leaks outwards or the one-way air valve is damaged is avoided, a containing part needed in the prior art for collecting the nasal discharge is omitted, the structure is simplified, assembly is convenient and fast, cost is reduced, and the nasal discharge collecting volume is increased.
Owner:DONGGUAN BAOYA MATERNAL & INFANT PROD CO LTD
Inspection equipment
The utility model provides inspection equipment, and relates to the technical field of overhead transmission line inspection. The inspection equipment comprises a driving structure, a main body frame, a lifting structure and a pressure detection structure, the driving structure is movably connected with the main body frame, the pressure detection structure is connected with the driving structure, the pressure detection structure is used for detecting pressure applied by the driving structure to an overhead transmission line wire or a ground wire, and the lifting structure is connected with the driving structure and the main body frame. The lifting structure is electrically connected with the pressure detection structure, and the lifting structure is configured to drive the driving structure to lift relative to the main body frame according to the pressure so as to adjust the pressure to the preset pressure. According to the inspection equipment provided by the invention, the driving structure is not easy to slip when moving on the overhead transmission line lead or the ground wire, and the inspection efficiency of the inspection equipment is prevented from being influenced.
Owner:SHANDONG SENTER ELECTRONICS
Oil unloading tank for transferring crude oil
The utility model discloses an oil unloading tank for transferring crude oil, which comprises a tank body, two opposite ends of the tank body are respectively provided with an injection port and an output port, two layers of filter plates are fixedly connected inside the tank body, the inside of the tank body is divided into three parts by the filter plates, and the three parts are sequentially divided into a first cavity, a second cavity and a third cavity from the injection port to the output port. A sampling assembly is arranged on the outer wall, corresponding to the third cavity, of the box body, blow-down valves are arranged on the inner walls, corresponding to the first cavity and the second cavity, of the box body, and pressure assemblies are arranged on the outer walls of the first cavity and the third cavity. The pressure assembly is arranged in the oil unloading tank body, pressure distribution in the tank body can be changed, pressure difference is formed in the tank body, and crude oil is driven by pressure to penetrate through the filter screen, so that the filtering efficiency is improved.
Owner:PETROCHINA CO LTD
Negative pressure driven micro-nano bubble industrial circulating water descaling treatment system
PendingCN120987483AWater treatment parameter controlSpecific water treatment objectivesMicro nanoPersonalization
The invention relates to the technical field of industrial circulating water treatment, in particular to a negative pressure driven micro-nano bubble industrial circulating water descaling treatment system which comprises a water quality monitoring module, a negative pressure generation and control module, a micro-nano bubble generation module, an intelligent descaling execution module, a network communication module and a man-machine interaction and visualization module. According to the system, personalized and precise descaling management is realized through multi-source data fusion, water quality prediction, dynamic descaling demand analysis and global optimization strategy generation; and meanwhile, bubble diffusion and self-cleaning functions are integrated, the descaling efficiency and the operation stability are improved, and risk early warning and closed-loop optimization capabilities are achieved. The operation efficiency of the industrial equipment can be remarkably improved, the energy consumption is reduced, and the system reliability and management convenience are enhanced.
Owner:SHANGHAI RENMIN ENTERPRISE GRP WATER PUMP
Anchor rod pull-out test device
The invention discloses an anchor rod pull-out test device, and particularly relates to the technical field of pull-out test devices, and the anchor rod pull-out test device comprises a confining pressure loading mechanism which comprises a confining pressure box for placing an anchor rod test piece and three groups of independent confining pressure loading units which are respectively installed at the top, the left side and the right side of the confining pressure box, each confining pressure loading unit comprises a loading end and a confining pressure driving assembly, and the confining pressure driving assembly drives the loading end to move towards the anchor rod test piece; the axial tension loading mechanism comprises a clamping head assembly and a tension driving device, one end of the clamping head assembly is used for being connected with an anchor rod of the anchor rod test piece in a clamping mode, the other end of the clamping head assembly is connected with the tension driving device, and the clamping head assembly is driven by the tension driving device to move in the direction away from the anchor rod test piece; and the confining pressure driving assemblies and the stretching driving devices are all in signal connection with the control system. The complex stress environment of an engineering site can be accurately simulated, test data conforming to actual working conditions are obtained, and the engineering economy and safety are effectively improved.
Owner:BEIJING JIAOTONG UNIV
Energy storage battery module and manufacturing equipment thereof
The invention discloses an energy storage battery module and manufacturing equipment thereof, the battery module comprises a frame body, a support plate is mounted at the bottom of the frame body, the frame body and the support plate form a battery box, and a battery pack is contained in the battery box; the manufacturing equipment is welding equipment, a laser welding head is arranged on one side of the first support, and the supporting plate and the frame body which abut against each other can be welded together through the laser welding head. A frame body is positioned from the inner side through a right prism in the equipment, accurate positioning is achieved through air pressure driving, the problem that the frame body deforms due to inconsistent force when a clamp is manually used for fixing is solved, the shape stability of the frame body is guaranteed, and then the quality consistency of subsequent welding is improved; the whole positioning, feeding and pressing process is automatically carried out, the frame body and the cover plate do not need to be fixed by manually adjusting the clamp for multiple times, the manual operation time is shortened, the complexity degree is reduced, and the production efficiency is remarkably improved.
Owner:SHANDONG BAWANGNIU NEW ENERGY TECH CO LTD
Reversing valve and air conditioner heat pump system
The invention belongs to the technical field of refrigeration and heating equipment, and particularly relates to a reversing valve and an air conditioner heat pump system. Comprising a pressure driving assembly and a channel adjusting assembly. The channel adjusting assembly comprises a plurality of fluid channels, and each fluid channel comprises at least one fluid medium inlet and a fluid medium outlet; the fluid channels are separated by blocking elements; the pressure driving assembly comprises at least two cavities and a moving element used for blocking the two cavities, connectors serving as pressure driving channels are arranged in the two cavities respectively and used for generating pressure difference to drive the moving element to move, and the moving element is used for driving the blocking element to move so as to change the path of the fluid channel. According to the multi-way valve, the pressure difference serves as driving force, the valve element generates axial displacement or rotary motion, automatic switching of the working modes of the multi-way valve is achieved, and the working modes of a system are switched by switching the flow direction of fluid. And an automatic reversing function can be realized without extra electric energy or mechanical power input.
Owner:HUAZHONG UNIV OF SCI & TECH
Flexible telescopic vacuum pipeline based on pneumatic driving
The invention particularly relates to a flexible telescopic vacuum pipeline based on pneumatic driving, and solves the problems of high working complexity, low efficiency, inaccuracy and uncontrollability in the mounting and dismounting process of the existing vacuum pipeline. The vacuum pipeline comprises a fixed flange, an inner corrugated pipe, an outer corrugated pipe, a lap joint flange, an air hole and an air pipe, one end of the inner corrugated pipe and one end of the outer corrugated pipe are respectively and fixedly connected with the inner end of the fixed flange, the other end of the inner corrugated pipe and the other end of the outer corrugated pipe are respectively and fixedly connected with the inner end of the loose flange, and an annular sealing cavity is formed among the inner corrugated pipe, the outer corrugated pipe, the fixed flange and the loose flange; the inner corrugated pipe and inner cavities of the fixed flange, the lap joint flange, the external high-pressure pipe and the external low-pressure pipe form a vacuum cavity; an air hole is formed in the inner end of the fixing flange, one end of the air pipe is connected with the air hole, the other end of the air pipe is connected with external air source equipment, and the air pipe is used for inflating the annular sealing cavity to extend the vacuum pipeline or exhausting air to shorten the vacuum pipeline.
Owner:XINJIANG TECH INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
An automobile air conditioner header assembly
The application provides an automobile air conditioner manifold assembly, which comprises a manifold, a plurality of slots are equidistantly formed in the manifold, and a drying pipe is installed on the manifold through fixing pieces, and the fixing pieces are at least two in number and are used for fixing the drying pipe on the manifold. When the filter bag is blocked by sundries for a long time, the refrigerant passing through the filter bag is hindered, the pressure in the drying pipe is increased, the first piston block is driven to move along the inside of the L-shaped pipe, the second piston block is driven to move upwards along the L-shaped pipe through the hydraulic oil transmission between the first piston block and the second piston block, the fixing rod on the top of the second piston block moves along the hollow rod until the squeeze control switch, the control switch starts the alarm in the automobile to give an alarm, and thus the excessive pressure in the manifold can be conveniently and timely prompted, and the refrigerant can be prevented from leaking due to the excessive pressure.
Owner:SHANGHAI SAXIN DONGTAI HEAT TRANSFER MATERIAL CO LTD
A kind of anti-shake system applied to load sensitive proportional multi-way valve
ActiveCN120444289BServomotor componentsFluid-pressure actuator componentsPressure.driveClassical mechanics
The application relates to the technical field of hydraulic control, in particular to a jitter prevention system applied to a load-sensitive proportional multi-way valve, which controls the flow supply of a hydraulic system through the opening change of a pressure compensator, the pressure compensator is driven by an initial pressure P1 collected at a load-sensitive signal LS collection point, the initial pressure P1 presents irregular sawtooth fluctuation; the initial pressure P1 is subjected to filtering and voltage stabilizing treatment through an S-shaped damping bridge circuit, the S-shaped damping bridge circuit converts the fluctuating initial pressure P1 into stable target pressure P4, so as to drive the pressure compensator to smoothly act, and realize the continuous and stable supply of system flow.
Owner:HEBEI MINGTIAN FLUID TECH CO LTD
Shock absorption and noise reduction composite structure device for elevator car
ActiveCN224185659USolving shock absorptionSolve the noiseElevatorsBuilding liftsPressure.driveVibration transmission
The utility model discloses a shock absorption and noise reduction composite structure device for an elevator car, which belongs to the technical field of mechanical engineering and acoustic engineering, and comprises a car body, the inner side of the car body is movably connected with a shock absorption mechanism, and the outer side of the shock absorption mechanism is movably connected with a noise reduction component. The shock absorption plates which are supported by the array telescopic supporting columns and are rotationally connected with the inner walls of the shock absorption plates are arranged on the four sides of the interior of the lift car body, and multiple sets of array shearing distribution telescopic rods are rotationally connected with the inner walls of the shock absorption plates. The stress damping plate moves to enable the array telescopic supporting columns to contract and store energy, the telescopic rods shear, expand and press downwards to drive the component force blocks to slide and press the compression springs to store energy, and impact force is unidirectionally decomposed into elastic potential energy and mechanical work. The problems that due to the fact that a traditional damping structure is arranged on the outer side of a lifting or connecting structure, vertical inertial impact, load sudden change, horizontal shaking and steel wire rope vibration conduction coverage are insufficient in the lift car body are solved, and effective buffering of the interior of the lift car body is achieved.
Owner:CHENGDU JINYE TIANCHENG INTELLIGENT TECH CO LTD
Forming device for carborundum grinding wheel production
The utility model discloses a forming device for carborundum grinding wheel production, which comprises a working table, a placing table is arranged at the upper end of the working table, a forming groove is arranged in the placing table, and a cooling assembly for cooling a workpiece is arranged on the working table. The connecting rod is arranged, the pressing plate drives the connecting rod to press downwards, the piston at the lower end of the connecting rod compresses air in the first sealing pipe, the air pressure drives the piston at the lower end of the sliding rod to ascend and descend through the connecting block and the second sealing pipe, and the cooling assembly is arranged in the working table. The sliding rod drives the push plate to ascend and descend, the push plate pushes cooling liquid at the upper end into the cooling groove through one connecting pipe to cool a workpiece, the cooling liquid enters the other end of the water tank through the other connecting pipe, the cooling module cools the cooling liquid, circulating flowing of the cooling liquid is achieved, and the workpiece is better cooled.
Owner:ZHENGZHOU JUJING PORCELAIN CO LTD
Pressure soybean milk machine
The invention discloses a pressure soybean milk machine. When the pressure soybean milk machine is used, raw materials are added into the cooking cup, then the sealing cover is rotationally buckled to the cup opening of the cooking cup till the sealing cover rotates to the opening stopping angle position, and then a user drives the manual locking piece to move to the locking position through the manual driving structure so as to manually lock the angle position of the sealing cover; in the heating process of the pressure soybean milk machine, when the pressure of the inner cavity of the cooking cup is increased and exceeds a preset value, the pressure opening stopping structure is driven by air pressure to move to the limiting position, the manual locking piece is locked at the current position, at the moment, the manual driving structure cannot drive the manual locking piece to move, linkage protection is achieved, and the service life of the soybean milk machine is prolonged. Compared with the mode that the sealing cover is directly locked through a pressure opening stopping structure, the effect is better, even if the pressure opening stopping structure fails, the sealing cover can be prevented from being directly rotated to be opened, the risk that the sealing cover is accidentally opened when the pressure soybean milk machine works is further prevented, and the use safety is further improved.
Owner:ZHONGSHAN CITY KUAIMEITE ELECTRIC APPLIANCE CO LTD
Device for testing service life of abdominal wheel
PendingCN121231265AMachine part testingInvestigating abrasion/wear resistancePhysical medicine and rehabilitationPlate pressure
The invention relates to the technical field of fitness equipment testing equipment, and particularly discloses an abdominal wheel service life testing device which comprises a base frame, a transmission mechanism, a sliding mechanism, a pressing mechanism, a fixing mechanism and a counting display module. The transmission mechanism is used for driving the sliding mechanism to reciprocate in the length direction of the linear guide rail, the pressing mechanism is arranged on the sliding mechanism and comprises a pressure driving part and a pressing plate, and the pressure driving part is arranged on the sliding mechanism to drive the pressing plate to apply pressure to the fixing mechanism. The fixing mechanism is arranged on the lower pressing plate and used for fixing an abdominal wheel to be tested, the counting display module comprises a displacement sensor and a display screen, the displacement sensor is arranged on the sliding mechanism and used for collecting displacement data of the sliding mechanism in real time and converting the displacement data into the number of round-trip times and the moving distance, and the display screen is arranged on the base frame and used for displaying the displacement data. The method has the effect of improving the test accuracy of the service life of the power roller.
Owner:BEYOND FACTORY (DONGGUAN) TECH CO LTD
Elevation-Dependent Pneumatic Vitrectomy System
An elevation-dependent surgical pneumatic cutting system is provided. The system includes an absolute pressure sensor for sensing an ambient pressure. The system also includes a pressure drive chamber that receives pressurized air, a supply outlet supplies pressurized air to a pneumatic vitrectomy handpiece and a relief exhaust line exhausts pressurized air. A proportional relief valve is in communication with the relief exhaust line. The pressurized air is exhausted through the proportional relief valve when a supplied air pressure, sensed by a line pressure sensor, exceeds a threshold opening pressure. The threshold opening pressure and an open position are set based on feedback from the absolute pressure sensor indicative of the ambient pressure, whereby the threshold opening pressure of the proportional valve and the open position of the proportional relief valve are variable based on the sensed ambient pressure.
Owner:BAUSCH & LOMB IRELAND LIMITED
Wellbore cleaning monitoring method and device based on walking type continuous measurement mode
The invention discloses a borehole cleaning monitoring method and device based on a walking type continuous measurement mode, and the method comprises the steps: putting a first batch of microchip capsules when drilling is not carried out, and circularly collecting the pressure data of a completely-cleaned well section along with drilling fluid as a reference; after drilling operation is started, a second batch of microchip capsules are put, and actually-measured pressure data of the rock debris-containing well section are collected; calibrating the hydraulic model based on the reference pressure data, calculating a theoretical pressure gradient, and calculating an actually measured pressure gradient; and based on the difference between the theoretical pressure gradient and the actually measured pressure gradient, the rock debris volume concentration distribution in the shaft is obtained through inversion of a pressure-driven model. According to the invention, an expensive intelligent drill rod is replaced by the microchip capsule which is low in cost and can be flexibly put, so that the defects that the cost is high, the deployment is limited and continuous dynamic monitoring of a whole well section cannot be realized in the prior art are overcome, and continuous, dynamic and accurate monitoring of the cleaning condition of a well hole is realized.
Owner:YANGTZE UNIVERSITY
Large-diameter bidirectional metal spherical sealing butterfly valve
ActiveCN120537902BOperating means/releasing devices for valvesLift valvePressure.driveButterfly valve
The present application relates to butterfly valve technical field, disclose a kind of large-diameter bidirectional metal spherical sealing butterfly valve, comprising: valve body and the valve core plate being arranged in valve body, further comprising: sliding platform, fixed in valve body;Floating ring, slidingly arranged in sliding platform;Limiting ring, bolted on sliding platform;Power piece, rotationally arranged on valve body;Liquid seal, fixed on valve body;Hydraulic part, fixed on valve body;First U-shaped rubber strip, fixed on floating ring;Second U-shaped rubber strip, fixed on floating ring;O-shaped sealing rubber strip, fixed on the outer wall of valve core plate;The present application is synchronous belt driven piston plate in liquid level groove swing when power shaft rotates, and the hydraulic oil in groove is injected into first U-shaped rubber strip and second U-shaped rubber strip by hydraulic pipe;Using the incompressible pressure driving characteristics of hydraulic oil, hydraulic pressure is evenly transmitted to each contact surface of rubber strip, to cause flexible rubber to deform and closely adhere to the curved surface profile of valve core plate outer wall.
Owner:XIAMEN FORET FLUID CONTROL CO LTD
Speed reducer for underground driving and underground tool assembly
The embodiment of the invention provides a speed reducer used for underground driving and an underground tool assembly. The speed reducer comprises an input shaft, an output shaft and an output shaft, an output shaft; a gear train disposed between the input shaft and the output shaft and providing a first power transmission path having a first gear ratio and a second power transmission path having a second gear ratio greater than the first gear ratio; a pressure sensing part of the pressure driving assembly is exposed in the underground environment outside the speed reducer to sense the environment pressure, and the pressure driving assembly is configured to drive the speed reducer to rotate by means of force generated by the environment pressure when the environment pressure exceeds a preset pressure threshold value. The gear train is automatically switched from operating through the first power transmission path to operating through the second power transmission path.
Owner:XI'AN PETROLEUM UNIVERSITY
Curing pile structure capable of being grouted and construction method thereof
The invention provides a grouting curing pile structure and a construction method thereof, the grouting curing pile structure comprises a pile body and an injection mechanism, the pile body comprises a pile body, a plastic-coated steel pipe is arranged in the pile body in the circumferential direction, the injection mechanism comprises an injection pipe, the injection pipe can extend into the plastic-coated steel pipe, an injection port is formed in the injection pipe, and the injection port can communicate with the plastic-coated steel pipe; a plurality of injection ports are formed in the surface of the pile body in the circumferential direction and the longitudinal direction, and three-way valves are arranged at the positions, corresponding to the injection ports, in the pile body; a liquid drainage assembly is arranged in a branch pipe of the three-way valve and comprises a first one-way valve and a protective film, and the protective film is arranged at the outlet end, close to the injection port, of the three-way valve and located in the pile body; the first one-way valve comprises a puncturing structure, the puncturing structure faces the protective film, and the puncturing structure can puncture the protective film. The puncturing structure is driven by the grouting pressure to break the protective film, an additional driving mechanism does not need to be added, and the grouting pressure can be used for grouting and breaking the protective film.
Owner:GUANGZHOU ENG CO LTD OF CHINA RAILWAY 19TH BUREAU GRP +1
Manual press
Owner:CHENGDU RUILIFENG TOOLS
Method for realizing pressure head moving forward by using preposed carbon dioxide slug assisted pressure drive water injection
ActiveCN116792066BOther gas emission reduction technologiesFluid removalPressure.driveEnvironmental engineering
The application provides a method for realizing pressure head migration by using a front carbon dioxide slug to assist water injection, comprising the following steps: step 1, establishing a model of water injection assisted by a front carbon dioxide slug; step 2, calculating the required water injection volume for water injection according to a production scheme and reservoir production data, and combining a pressure distribution model to optimize the volume of the required carbon dioxide slug; step 3, injecting the carbon dioxide slug according to the calculation result of step 2 to realize pressure head migration; and step 4, after the carbon dioxide slug is injected, water injection development is carried out in the way of water injection to form a development model of water and carbon dioxide slug oil displacement. The method for realizing pressure head migration by using a front carbon dioxide slug to assist water injection combines the advantages of water injection and carbon dioxide displacement, achieves good oil displacement effect at a low cost, and has a great application prospect in the development of low-permeability reservoirs, tight reservoirs and fault block reservoirs.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1