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68results about How to "Pressurized and stable" patented technology

Double-disk rotation eccentric V shaped groove grinding miller

The invention discloses a double-disk autorotation eccentric V-shaped groove grinder, which comprises a frame, and an upper abrasive disk and a lower abrasive disk arranged on the frame; wherein, the upper abrasive disk is arranged on the spindle of the upper abrasive disk and the spindle of the upper abrasive disk is connected with the driving motor of the upper abrasive disk; the lower abrasive disk is connected with the driving motor of the lower abrasive disk, and the upper abrasive disk and the lower abrasive disk are arranged at the top and bottom. The frame comprises a frame body and an upper stent; wherein, the upper stent can be rotatablely arranged on the upper end of the frame body, and the upper abrasive disk is arranged on the upper stent while the lower abrasive disk is arranged on the frame body; at least three V-shaped grooves used for placing ball-billets are cut on the upper surface of the lower abrasive disk; each V-shaped groove is a concentric circle, the circle center of the concentric circle coincides with that of the lower abrasive disk, and the upper abrasive disk and the lower abrasive disk are eccentric with each other. The double-disk autorotation eccentric V-shaped groove grinder provided by the invention has simple structure and low manufacturing cost, and simultaneously has higher machining accuracy and machining efficiency.
Owner:ZHEJIANG UNIV OF TECH +1

Pneumatic type coupling system for preparing large remolded clay and performing one-dimensional consolidation test

The invention discloses a pneumatic type coupling system for preparing large remolded clay and performing one-dimensional consolidation test, which can be used for preparing a large-size cylindrical sample or hollow cylindrical sample of remolded clay in geotechnical engineering, and also can be used for performing one-dimensional consolidation test of a large clay sample. The pneumatic type coupling system comprises a displacement measuring system, a combined pressure cavity, a pore-pressure measuring system, a discharged-water volume measuring system, a pneumatic loading system and an axial tightening member. The pneumatic type coupling system disclosed by the invention has the advantages that the loading is carried out by a pneumatic mode, the pressurization is stable, uniform, measurable and controllable, the loading pressure can be more than 1.6MPa and the defect of difficult application of high pressure in weight loading is effectively overcome; a vertical metal permeable stone is embedded into a rigid and transparent sleeve to form a vertical water discharging channel, so that the defects of single water discharging channel and slow consolidation speed of traditional consolidation equipment are overcome; the pressure cavity of the pneumatic type coupling system is the rigid and transparent sleeve, so that the pneumatic type coupling system has visibility and overcomes the defect of invisibility of a traditional consolidometer.
Owner:WENZHOU UNIVERSITY

Blood pressure meter cuff

InactiveUS20060149153A1Stably pressurizedSuitable widthEvaluation of blood vesselsCatheterEdge effectsHuman body
Provide is a blood pressure meter cuff capable of avoiding an influence of an edge effect by pressurizing only a portion of a blood vessel in the downward vicinity of the body surface to thereby measure a correct blood pressure. A blood pressure meter cuff 1 includes: a fluid bag into which a fluid is injected; and a fixing tool fixing the fluid bag on a limb of a human body or the like, wherein a width in the axial direction of the limb, of the fluid bag is a value suitable for selectively pressurizing only a portion of a blood vessel present in the downward vicinity of the skin. In a case where pressurization is imposed on only a portion of the radial artery present in the downward vicinity of the body surface and adjacent to a radial styloid process of a wrist, a width, in the axial direction of a limb, of the fluid bag is set to 15 mm or more and 25 mm or less.
Owner:OMRON HEALTHCARE CO LTD

Loose body permeation grouting simulating testing device

The invention discloses a loose body permeation grouting simulating testing device. A grouting system comprises a grouting pump, a grout storing tank and a grouting pipeline, wherein the grouting pumpis used for conveying grout in the grout storing tank to a peripheral pressure loading system; the peripheral pressure loading system comprises a double-rubber-sleeve peripheral pressure loader and amanual peripheral pressure pump; an outer water bag rubber sleeve is connected to the peripheral pressure pump, so that a peripheral pressure environment is created; an inner flap membrane rubber sleeve wraps a loose medium; a monitoring system comprises a monitoring host, a pressure pump sensor, a grouting port pressure sensor, a peripheral pressure sensor and a resistivity sensing element. According to the loose body permeation grouting simulating testing device, the flap membrane rubber sleeve wraps a loose body, and the water bag rubber sleeve is used for pressurizing the loose body so asto simulate a ground stress environment; the pressure of a constant-pressure peripheral pressure pump and the grouting pump is adjusted until the peripheral pressure is beyond the grouting pressure,and thus the loose body permeation grouting process can be simulated; after the grouting is finished, the solidified loose body wrapped with the flap membrane rubber sleeve can be completely removed for study. The method is convenient to operate; and the obtained test result has directive significance on actual engineering design.
Owner:CHINA UNIV OF MINING & TECH

Precision pressure control system and hydraulic machining method of servo pump control hydraulic machine

The invention relates to a precision pressure control system and a hydraulic machining method of a servo pump control hydraulic machine. The hydraulic machine comprises a medium-flow servo pump and alarge-flow servo pump driven by a servo motor, outlet pipelines of two pumps are connected with a main cylinder upper cavity oil way through a seventh dynamic valve, and the main cylinder upper cavityoil way is further connected with an oil tank through a fourth dynamic valve and a proportional valve; a main cylinder lower cavity pipeline is connected with an outlet of a ninth cartridge valve, aninlet of the ninth cartridge valve is connected with the oil tank through a fifth cartridge valve and an eighth cartridge valve, the fifth cartridge valve supplies supporting force during deceleration and pressurization through an overflow valve, and the eighth cartridge valve is turned on during the return stroke. In hydraulic machining, each working cycle comprises the following actions of automatic pressure compensation for an energy accumulator, pressure supplementation stopping for the energy accumulator, rapid descending of a sliding block, deceleration pressurizing of the sliding block, pressure maintaining of the sliding block, pressure relief of the sliding block, and return and stopping of the sliding block. The servo driver is switched in two modes of flow control and PID regulation control, stable pressurization of the sliding block is achieved, the phenomenon that a part deforms due to pressurization overshoot is avoided, and pressure relief is stable.
Owner:江苏扬力液压装备有限公司

Loose media permeation grouting simulation experiment method

The invention discloses a loose media permeation grouting simulation experiment method. A constant-pressure confining pressure pump is utilized to inject high-pressure water into a rubber water bag sleeve via a water hole to provide confining pressure, and the provided confining pressure is higher than grouting pressure; during grouting, a rubber valve sleeve depends on the confining pressure to tightly wrap loose media, loose media grouting is definitely permeation grouting under the condition that the confining pressure is higher than the grouting pressure, and therefore the influence of grouting methods, such as compaction grouting and fracturing grouting, on grouting effect is prevented. The loose media permeation grouting simulation experiment method is convenient to operate, and cantruly simulate permeation grouting reinforcement for the loose media, the rubber valve sleeve is utilized to wrap the loose media, and by means of the rubber water bag sleeve, pressure is applied on the loose media to simulate a geostress environment; by regulating the pressure of the constant-pressure confining pressure pump and a grouting pump, the confining pressure is higher than the groutingpressure, so that the loose media permeation grouting process can be simulated; after grouting is completed, the solidified loose media wrapped by the rubber valve sleeve can be completely taken out for study; and an experimental result obtained by the method has guiding significance for an actual engineering design.
Owner:CHINA UNIV OF MINING & TECH

Hydraulic shock absorber

A hydraulic shock absorber includes a damper cylinder having a hollow bore therein. A piston rod and piston separate the bore into a rod side oil chamber and a piston side oil chamber. A pressure side damping force generator is provided with a sub piston in the piston side oil chamber. A first separator is provided in a sub piston side oil chamber of the sub piston, with a communication hole that communicates between the sub piston side oil chamber and a bladder side oil chamber. A hollow bladder is mounted in the bladder side oil chamber. A blow hole is provided in the bladder side oil chamber, the blow hole being normally closed by the bladder and opening when oil enters the bladder side oil chamber such that the bladder is contracted by an oil pressure when a volume of the oil reaches a predetermined capacity.
Owner:HONDA MOTOR CO LTD

Magnetic conduction block and press machine for manufacturing magnetic conduction block

The invention discloses a magnetic conduction block, which comprises alternately arranged permalloy plates and nickel-bronze alloy plates; adjacent permalloy plates and nickel-bronze alloy plates are bonded and pressed together by a metal adhesive. The invention also discloses a press for making the above-mentioned magnetic block, which includes a bottom plate on which several T-shaped grooves are arranged, and front and rear slide rails are respectively fixedly connected to the two T-shaped grooves in the middle of the bottom plate; the front and rear slide rails There is a support seat in the middle of the center, and a hydraulic cylinder is provided on the support seat. The left end of the extension rod of the hydraulic cylinder is fixedly connected with a pressure lining, and the pressure lining is fixedly connected with a liner; the liner is fixedly connected with a push plate, and the push plate is downward. Two slide blocks are fixedly connected, and the two slide blocks are respectively connected to the left end of the upper bottom plate of the front and rear slide rails and are fixedly connected with a support. The magnetic permeable block of the present invention can control the magnetic performance relatively easily, and improve the service life and the magnetic permeable effect of the magnetic permeable block. The press machine of the invention has simple structure, low cost, large clamping force on the magnetically permeable blank, and can work stably for a long time.
Owner:HUANGHE S & T COLLEGE

Lever type pneumatic pressurizing cradle

The invention relates to a lever pneumatic pressing cradle, comprising a casing, a groove seat articulated with the casing, a regulating seat articulated with the groove seat, a back-roller seat fixed on the groove seat, a front bearing seat and a middle bearing seat which are arranged on the regulating seat, a back bearing seat arranged on the back-roller seat, a handle and an upper clamp seat which are articulated with the casing, a lower clamp seat provided with one end articulated with the upper clamp seat and the other end is connected with the upper clamp seat by a thread and a holding tube held by the upper clamp seat and the lower clamp seat. A sphere positioning hole is arranged on the holding tube, and a universal rotary-connection can be formed between the sphere positioning hole of the holding tube and a sphere positioning projection block in the cradle positioning structure so as to avoid the interference to pressure regulation. A V-shaped support cushion used for carrying out radial self-dimensional alignment to a journal of an upper roller bearing and a clip used for carrying out radial positioning and alignment to the journal end face of the upper roller bearing are arranged on the front, middle and back bearing seats so as to largely enhance the stability of the three-line parallelism of the cradle and to effectively reduce the pressure difference between a left ingot and a right ingot so as to enhance the stressing condition of the bearing seats. Moreover, various spinning accessories are arranged on the cradle.
Owner:四川成发普睿玛机械工业制造有限责任公司

Fine pressure regulation type pneumatic pressurization cradle

InactiveCN102433621APrecise pressure adjustmentChange eccentric positionDrafting machinesPressure transmissionEngineering
The invention provides a fine pressure regulation type pneumatic pressurization cradle. The cradle comprises a cradle shell, a handle and a fixed clip which are hinged with the cradle shell, a clamping clip, a roller arranged on the handle, a pressure transmission crank and an eccentric pin component for regulating pressure, wherein one end of the clamping clip is hinged with the fixed clip, and the other end of the clamping clip is connected with the fixed clip through a bolt; the pressure transmission crank is hinged with the handle, and one end of the pressure transmission crank is contacted with the roller in pressurization; the eccentric pin component consists of an eccentric pin, a spring gasket and a screwing bolt, and is arranged on the hinging end of the handle and the cradle shell and positioned above the roller; and the eccentric pin component is assembled by the following way: one end of the eccentric pin passes through pores formed on the cradle shell and the handle and extends out, the spring gasket is sleeved on the eccentric pin and contacted with the cradle shell, and the spring gasket and the eccentric pin are fixed through the screwing bolt.
Owner:四川成发普睿玛机械工业制造有限责任公司

Real-time test device for mechanical properties of film

The invention provides a real-time test device for mechanical properties of a film, belonging to the technical field of the test for optical measuring mechanical properties and material mechanical properties. The test device mainly comprises a laser deflection measuring part, a pressure loading part and a film clamping structure. In the test process, the pressure loading is realized by driving a cylinder by a stepping motor, the film is bulged to deform, and meanwhile, a michelson laser interference principle is utilized to measure the deflection of the film. A pressure sensor and a silicon solar cell are utilized to respectively detect the pressure and the deflection. A programmable device FPGA is used for realizing the stepping motor control, data collection and upper computer communication. The upper computer is used for realizing the data display and processing. An optical measuring technique is combined with a film bulging method according to the invention, so that the mechanical properties of the film can be tested and the device is suitable for an elastic plastic film with a certain reflectance on the surface.
Owner:NORTHEASTERN UNIV LIAONING

Compression resistance tester of combined paper box

The invention relates to a compression resistance tester of a combined paper box, which comprises a pressure sensing and displaying part of an electronic platform balance and a gravity pressurizing part of a weight box, wherein the weight box is hung under a portal frame, a worm speed reducer is arranged on the portal frame, one end of a thin steel rope is wound on an output shaft of the worm speed reducer and the other end is connected to the top end of the weight box through a fixed pulley so as to control the weight box to slowly descend through operating a handle of the worm speed reducer by hand so that the slowly increasing downward pressure is controlled. The invention has simple structure, low cost, stable pressurization and uniform pressure, is formed by combining two parts and can be used as a common platform balance usually so as to achieve the purpose of one tester serving two uses.
Owner:王言平

A Combined Measuring Instrument for Consolidation and Permeability of Soil Water-Air Collapse

The invention discloses a soil water-gas collapsibility-consolidation-penetration combined determinator. The determinator comprises a collapsibility-consolidation-penetration permeameter, a water seepage coefficient determination system and an air permeation coefficient determination system. The collapsibility-consolidation-penetration permeameter comprises a base and a cutting ring. The cutting ring is filled with a soil sample. The top end of the soil sample is provided with a pressurization control system. The pressurization control system is provided with a dial indicator for determining displacement of a piston in the pressurization control system and a compression gauge for determining air pressure. The water seepage coefficient determination system and the air permeation coefficient determination system are connected to the collapsibility-consolidation-penetration permeameter through pipe ports. The determinator utilizes a modularization design, can carry out a standard height soil sample test, can prepare soil samples with different heights according to demands and test them and can realize simultaneous determination of a penetration coefficient, an air permeation coefficient, a concretion coefficient, a loess collapsibility coefficient and a penetration coefficient and air permeation coefficient after loess collapse. The determinator has the characteristics of good flexibility, short test period, stable and reliable pressure control, labor and time saving and high cost performance.
Owner:CHANGAN UNIV

Automatic pressuring rapid blood transfusion infusion device

InactiveCN103394145AImprove pressure instabilityPressurized and stablePressure infusionBlood transfusionBottleGuide tube
The invention provides an automatic pressing rapid blood transfusion infusion device which mainly comprises an air storage bottle (1), a pressure adjuster (2), a catheter (5), a pressure indicating meter (6) and a pressuring bag (7). The air storage bottle (1) is installed on an air inlet of the pressure adjuster (2), an air outlet of the pressure adjuster (2) is communicated with an air inlet of the pressure indicating meter (6) through the catheter (5), and an air outlet of the pressure indicating meter (6) is communicated with the pressuring bag (7) through the catheter (5). As an improvement, the automatic pressing rapid blood transfusion infusion device further comprises a pressuring rubber ball (3) and a multi-way connecting valve (4), the pressuring rubber ball (3) is communicated with one end of the multi-way connecting valve (4) through the catheter (5), the other end of the multi-way connecting valve (4) is communicated with the air outlet of the pressure adjuster (2) through the catheter (5), and a third end of the multi-way connecting valve (4) is connected with the air inlet of the pressure indicating meter (6) through the catheter (5). The automatic pressing rapid blood transfusion infusion device has the advantages of being good in operating performance and pressure stability, and capable of being widely applied to various medical treatment occasions or home nursing.
Owner:ZHEJIANG SHANSHI BIOLOGICAL MEDICAL DEVICES (SHANGQIU) CO LTD

Polishing carrier capable of measuring thickness on line

The invention relates to the technical field of wafer processing, in particular to a polishing carrier capable of measuring the thickness online, which comprises a carrier body used for bearing a polished piece; a thickness measuring assembly comprising a detection channel, the detection channel is arranged in the carrier body, and the detection channel penetrates to one end, bonded with the polished piece, of the carrier body; and a detector which is fixedly connected to the carrier body and is used for sending a detection signal to the polished piece through the detection channel so as to detect the thickness of the polished piece and outputting the thickness of the polished piece. The polishing carrier capable of measuring the thickness on line provided by the invention has the advantages that the technical problem that in the prior art, the current polishing removal amount and the polished piece thickness of the system polished piece cannot be fed back in real time is solved; and the technical effect of feeding back the polished piece thickness in real time is achieved.
Owner:ZHEJIANG JINGSHENG MECHANICAL & ELECTRICAL +1

Device and method for pressing rubber joints to electric motor

The invention discloses a device and method for pressing rubber joints to an electric motor. The device comprises a bottom plate, a pressing block, a pressing sleeve, a first guide plate, a second guide plate, a clamping plate and a guide bar, wherein the bottom plate, the first guide plate, the second guide plate and the clamping plate are sequentially arranged in spaced and coaxial modes; the guide bar is arranged in the bottom plate, the first guide plate, the second guide plate and the clamping plate in a penetrating mode; a space for containing rubber joint installation holes is reserved between the second guide plate and the clamping plate; the pressing block is arranged in the position, facing one side of the bottom plate, of the first guide plate; the pressing sleeve is arranged in the through hole of the first guide plate in a penetrating mode and makes contact with the pressing block; and the pressing sleeve is provided with inner holes used for containing the flat portions of one end of the rubber joints. When the joints are to be pressed, a stress application mechanism arranged between the bottom plate and the first guide plate is used for transferring pressing force to the rubber joints sequentially through the pressing block and the pressing sleeve, the pressing block, the pressing sleeve and the first guide plate move towards the side where the second guide plate is located, and accordingly the rubber joints are pressed into the rubber joint installation holes. The device and method can achieve the technical purpose of directly pressing the rubber joints onto the electric motor.
Owner:襄阳中车电机技术有限公司 +1

Automatic pressure stabilizing and increasing system for medical emergency blood transfusion bag

The invention relates to an automatic pressure stabilizing and increasing system for a medical emergency blood transfusion bag, comprising a rotating motor, supporting sliding rods, a parallel deviceand an infusion device, wherein the rotating motor is mounted at the bottom of the parallel device through a motor sleeve, the infusion device is mounted at the output shaft of the rotating motor, thesupport sliding rods are symmetrically distributed on the outer side of the rotating motor, the tops of the support sliding rods are mounted at the bottom of the parallel device, and the bottoms of the support sliding rods are connected with the infusion device; and the infusion device includes a rotating support plate, a hollow column, inner support telescopic rods, inner support springs, innersupports, positioning mechanisms, suspension mechanisms, protective push rods and protective frames. The system of the invention can solve the hidden danger that an existing transfusion bag is fallenfrom an infusion stand which is violently shaken and cannot protect the infusion bag in all directions when the existing transfusion bag is used for infusion, and solve the problems of manually pressing the transfusion bag for pressurizing of the transfusion bag and unstable pressure of the transfusion bag.
Owner:THE AFFILIATED HOSPITAL OF QINGDAO UNIV

Diaphragm pump integrally including quick discharge valve unit

A diaphragm pump includes a quick discharge valve unit that comprises a vessel including a supply passage, a check valve seat, a delivery passage and a discharge passage, and an elastic member configured to partition an internal space of the vessel into an input-side space connected to the supply passage and an output-side space connected to the delivery passage and the discharge passage. The elastic member includes a check valve body to prevent an inflow of air from the output-side space to the input-side space, and a discharge port valve body configured to close the discharge passage when air is supplied to the input-side space through the supply passage. The vessel includes a connecting path having a sectional area smaller than an area of a section of the supply passage, and configured to release pressurized air in the input-side space to an outside.
Owner:OKEN LTD

Photoresist air isolation system

The invention discloses a photoresist air isolation system. The system comprises an air supply device; a plurality of pressure regulating devices comprising glue discharging pressure regulating devices and pressure maintaining devices, wherein each pressure regulating device comprises a pressure reducing valve and a throttling valve, the air supply device is sequentially communicated with the pressure reducing valve and the throttling valve, and the pressure reducing valves of the pressure regulating devices are different in working use pressure; a valve terminal provided with a plurality of first air inlets, wherein the first air inlets are communicated with the pressure regulating device; and a photoresist storage device provided with a second air inlet and a photoresist outlet, wherein the second air inlet is communicated with the valve terminal. According to the invention, the problem that the glue solution is in contact with air when the glue bottle is replaced or the glue solution is refilled is effectively solved.
Owner:宁波润华全芯微电子设备有限公司

Welding, grinding and polishing switching integrated machining robot

The welding, grinding and polishing switching integrated machining robot comprises a base plate, a machining table is fixedly installed at the top end of the base plate, a mechanical arm is fixedly installed at the position, corresponding to one side of the machining table, of the top end of the base plate, and fixing side plates are evenly, symmetrically and fixedly installed at the top end of the machining table; a driving screw rod is rotatably mounted between the two fixing side plates correspondingly, and one end of the driving screw rod penetrates through and is fixedly connected with a first transmission assembly. The machining robot is scientific and reasonable in structure and safe and convenient to use, and through the arrangement of a driving motor, a driven gear, a sliding block and a sliding plate, the machining efficiency of the machining robot in use is improved; according to the machining robot, the overall economic benefit of workpiece machining is improved, by arranging a conduction sliding rail, a clamping screw rod and a movable clamping plate, the adjustability of the machining robot when the machining robot is used for machining workpieces of different sizes is improved, and the workpiece clamping efficiency of the machining robot is indirectly guaranteed.
Owner:JIAXING UNIV

Fabrication process of magnetic guide block

The invention discloses a fabrication process of a magnetic guide block. The fabrication process is sequentially performed according to the following steps of 1, fabricating a blank, wherein the step comprises fabricating a permalloy blank and fabricating a nickel bronze alloy blank; 2, grinding in a thickness direction; 3, grinding in a width direction; 4, coating, in which metal adhesives are uniformly coated on surfaces of each permalloy blank and each nickel bronze alloy blank, and each permalloy blank and each nickel bronze alloy blank form a magnetic guide blank; 5, laminating; and 6, fabricating a finished product. The fabrication process of the magnetic guide block has the advantages that the permalloy blank and the nickel bronze alloy blank are conveniently fabricated to form the magnetic guide block by operations such as grinding, pasting and lamination, expensive equipment and auxiliary materials are not needed, the cost is reduced, the demand of fabricating the permalloy blank and the nickel bronze alloy blank to from the magnetic guide block is also satisfied, and the magnetic block with longer service lifetime and better magnetic guide effect can be fabricated.
Owner:HUANGHE S & T COLLEGE

Mechanism for snatching and pressurizing space solar battery string

The invention relates to a spatial solar cell string gripping and pressurizing mechanism in the technical field of spatial solar power supply. The spatial solar cell string gripping and pressurizing mechanism comprises a frock clamp and negative pressure gripping and pressurizing frocks; the lower surfaces of the negative pressure gripping and pressurizing frocks adsorb a cell string through negative pressure; the frock clamp is used for simultaneously gripping a plurality of the negative pressure gripping and pressurizing frocks; the negative pressure gripping and pressurizing frocks adopt a negative pressure adsorption mode, realize stable gripping of the spatial solar cell string, ensure the precision of the plane position of the gripped cell string, can provide a reliable supporting platform for the spatial solar cell string and can stably pressurize the mounted solar cell string for a long time. The frock clamp and the negative pressure gripping and pressurizing frocks are combined and applied to realize parallel operation of gripping and pressurizing and improve the production efficiency. The frock clamp can realize simultaneous and respective gripping of the negative pressure gripping and pressurizing frocks and the cell string; and a mechanical locking mechanism and relevant negative pressure adsorption ensure the safety in the using process.
Owner:SHANGHAI JIAO TONG UNIV

Ring fine spinning machine machinery centralization type compact spinning apparatus

This invention relates to ring fine pin machine focus tight device, which is characterized by the following: front roller nipper extension wire downstream is set with focus roller; the focus rack and front roller legs are combined in front of focus roller; the focus roller top roller is set with focus machine between bar; the focus roller and rack are set with pressing structure; due to focus part pressure is of system inner pressure, it doesn't generate original shake rack impact not one front roller surface to keep original front roller, front roller and resistant roller to output coverage arc.
Owner:王国和

Concave copper sheet for being pasted to slideway and pasting tool assembly

The invention discloses a concave copper sheet for being pasted to a slideway and a pasting tool assembly. The concave copper sheet is used for being pasted to the surface of a concave groove of the slideway of an object, and the concave copper sheet is integrally formed by a bottom plate, a vertical side plate and an inclined side plate; the pasting tool assembly comprises a pressing wedge and a pressing block; the pressing wedge comprises a top plane, a bottom plane and two symmetrical inclined side faces; the pressing block comprises a top plane, a bottom plane, a vertical side face and an inclined side face opposite to the vertical side face; a pressing wedge adjusting plane is arranged on the bottom plane of the pressing block, the lower end edge of the inclined side face of the pressing block is connected with the inner side edge of the pressing wedge adjusting plane, and the two symmetrical inclined side faces of the pressing wedge are matched with the inclined side face of the pressing block and the inner inclined face of the inclined side plate of the concave copper sheet and consistent in inclination respectively. The concave copper sheet and the pasting tool assembly can effective protect the surfaces of two work slideways attached to each other, the service life is prolonged, the launch cost is lowered, and social and economic benefits are increased.
Owner:GENERAL ENG RES INST CHINA ACAD OF ENG PHYSICS

High pressure oil filling device convenient to adjust

The invention discloses a high pressure oil filling device convenient to adjust. The high pressure oil filling device convenient to adjust comprises a base, a nitrogen cylinder, a storage box and an adjusting mechanism. The nitrogen cylinder is mounted on the top of the base, an air outlet on the nitrogen cylinder is connected with an air inlet formed in the storage box through an air guiding pipe, and a first electromagnetic valve is arranged on the air guiding pipe. A first servo motor is fixedly connected to the center position of the top of the storage box, an alarm is installed on one side of the first servo motor, an output shaft of the first servo motor extends into the storage box, and is connected with a first rotating shaft through a connecting key. A plurality of stirring rods are uniformly arranged on the outer portion of the first rotating shaft, a liquid-level meter is arranged on one side of the inner wall of the storage box, an oil discharging pipe is connected to an oil outlet at the lower end of one side of the storage box in a sealing mode, and a second electromagnetic valve is fixedly connected on the oil discharging pipe. According to the high pressure oil filling device convenient to adjust, the pressure is stable, the lubrication effect is good, the angle and height of oil discharging is convenient to adjust, and the use is convenient.
Owner:安徽恒辉机械有限公司

Automatic aluminum oxide charging system for aluminum electrolysis based on linear drive circuit

InactiveCN105239098AIncrease power consumptionMaterial consumption increasedAC motor controlAutomatic controlElectrolysis
The invention discloses an automatic aluminum oxide charging system for aluminum electrolysis based on a linear drive circuit. The automatic aluminum oxide charging system is characterized by being composed of a concentration detection sensor (8), a variable frequency motor (1), an aluminum oxide pressurizing pump (2), a charging box (3), a buffer (4), a material conveying pipe (9), a pressure gauge (5), an electromagnetic valve (6) and an automatic control system (7). The automatic control system (7) is composed of a transformer T, a voltage input circuit, a signal triggering circuit, a logic switching circuit, an electromagnetic valve control circuit and the variable frequency motor linear drive circuit. The variable frequency motor linear drive circuit is composed of a driving chip U3, a secondary side circuit and a microprocessing circuit. According to the automatic aluminum oxide charging system, the variable frequency motor linear drive circuit is used for driving the motor, the driving stability of the variable frequency motor linear drive circuit is better so that the aluminum oxide pressurizing pump can be used for stably pressurizing aluminum oxide, and charging is more even.
Owner:SICHUAN HUASUO AUTOMATION INFORMATION ENGCO

Vertical shaft foundation thermal drainage consolidation test device

The invention discloses a vertical shaft foundation thermal drainage consolidation test device, which can measure the influence of temperature on consolidation under the condition of rated pressure load so as to count each group of measuring data and comprehensively analyze the influence of each factor on soil sample consolidation, and can realize automatic loading measuring, and the vertical shaft foundation thermal drainage consolidation test device comprises a test box, a pressurizing mechanism, a drainage mechanism , and a heating mechanism ; a box cover is arranged at the top of the test box, and the test box is filled with a soil sample; the pressurizing mechanism is used for loading and pressing the soil sample; the drainage mechanism comprises a vertical shaft arranged in the test box; the heating mechanism is used for heating the soil sample; wherein a pore water pressure sensor is pre-buried in the soil sample; and the heating mechanism comprises a first heating assembly arranged on the outer wall of the test box and a second heating assembly arranged on the outer wall of the vertical shaft.
Owner:ZHEJIANG UNIV
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