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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

The invention discloses a pressing device for producing ink blocks. The pressing device comprises a housing and a pressure chamber. A lock screw is fixed on the right side of the housing. A pneumaticrod is mounted below the lock screw. A push plate is connected with the left side of the pneumatic rod. A baffle is fixed above the pressure chamber. The pressure chamber is positioned at the inner part of the housing. A bracket is arranged on the right side of the baffle. A base is arranged below the bracket. A supporting rod is mounted on the surface of the base. A hydraulic rod is arranged on the left side of the baffle. An ejector rod is arranged on the lower right of the hydraulic cylinder. An airbag is mounted below the ejector rod. A supporting plate is arranged below the airbag. A telescopic rod is mounted on the right of the supporting plate. By the connection between the pneumatic rod and the push plate, the interior of the pneumatic rod is filled with nitrogen, and the compression ratio of gas is relatively high; an elastic force is generated by compressing the gas, so that the pneumatic rod pushes the push plate to advance and return, and better and more stable pressing canbe realized.

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.

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.

The present invention relates to a silencer device which is mounted on an electrical steering apparatus in a vehicle, wherein the electrical steering apparatus includes a worm shaft and worm wheel meshed with the worm shaft. The silencer device is characterized by comprising: a pressurized side of the worm shaft body; core manner is provided between the core and the core body and said first spring pressing the worm shaft; embodiment one side of the body disposed in the second spring-loaded. Therefore, during driving of the vehicle, with not only an uneven pavement but also a common pavement causing a ge-ge noise, pressurization is always stably applied to a bearing of the screw rod with a predetermined spring load.

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.

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.