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5036 results about "Rubber ring" patented technology

Apparatus and method for determining high temperature wettability

The invention discloses an apparatus and a method for determining high temperature wettability. The apparatus comprises a heater body, a heating portion, an extruding dripping portion, a sample supporting portion and an image acquisition and processing portion. The heater body is comprised of a stainless steel cavity, a furnace lid and a No. 3 fluorine rubber ring bolt connecting together. A shielding layer in the heating portion is arranged in the center of a furnace bottom in the heater body, and a heating member is placed at the center of the shielding layer. The extruding dripping portionis perpendicularly arranged on an upper end of the heater body, and a lower end of a thermocouple in the heating portion, a lower end of the extruding dripping portion and an upper end of a sample bench are placed in the heater body. A substrate is placed at top of the sample bench. Two sets of CCD digital cameras or CMOS high speed cameras in the image acquisition and processing portion and a light source are respectively placed at the front and rear and the left and right of the heater body, and are in a same horizontal line with a symmetric axis of a quartz glass observation window, a wallthrough hole on the shielding layer and a heating member through hole on the heating member. The invention also provides a method for determining high temperature wettability.
Owner:JILIN UNIV

Shaft sealing device with magnetic fluids

InactiveCN102537367AReduced seal pressureAutomatically adjust the coaxialityEngine sealsRubber ringMagnetic poles
The invention relates to a shaft sealing device with magnetic fluids, which is characterized in that based on an existing shaft sealing device with magnetic fluids mainly comprising a rotating shaft, a non-magnetic metal shell, magnetic poles, a permanent magnet, the magnetic fluids and a rubber ring, sealing pole teeth made of soft magnetic materials are additionally arranged in sealing pole tooth grooves of the magnetic poles, a sealing pole tooth ring is sleeved on the rotating shaft, the inner diameter of the sealing pole tooth ring is 0.1-0.6mm larger than the diameter of the rotating shaft, the outer diameter of the sealing pole tooth ring is 0.1-0.3mm smaller than the inner diameter of each tooth groove, the thickness of the sealing pole tooth ring is 0.1-0.3mm smaller than the width of each tooth groove, the magnetic fluids are distributed in an annular sealing gap between the rotating shaft and the sealing pole tooth ring, and each magnetic pole comprises two half annular magnetic poles. The positions of the sealing pole teeth of the device can be changed radially along the rotating shaft to adjust coaxiality of the rotating shaft and the sealing pole teeth, uneven distribution of the annular sealing gap in the circumferential direction of the rotating shaft is decreased, reduction of the pressure bearing capacity of the device and abrasion of the rotating shaft and the sealing pole teeth are avoided, and the requirements of sealing components on machining and mounting precision are lowered.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Commutator segment automatic assembly technology and full-automatic commutator segment assembly machine

The invention discloses a commutator segment automatic assembly technology. Through the rotation of a dividing plate, in a core feeding position, a core feeding machine conveys the cores into the dividing plate through a core feeding device to carry out location. In a detection position, a detection device carries out detection on the location conditions of the cores. In a sheet inserting position, a sheetbody feeding machine inserts commutator segments into the cores through a sheeting inserting device. In a rubber ring feeding position, a rubber feeding machine props the rubber rings and sleeves the rubber rings on the outer circles of the cores with the inserted commutator segments through a rubber ring sleeving device. In a blanking position, a finished product clamping device clamps finished products and outputs the finished products. The commutator segment automatic assembly technology achieves complete automation of a whole assemble process of assembling scattered commutator segments into cylinders, and has the advantages of reducing amount of labor used, improving efficiency, guaranteeing quality and reducing cost. Meanwhile, the invention provides a full-automatic commutator segment assembly machine for applying the commutator segment automatic assembly technology.
Owner:WENZHOU K Q B W AUTOMATIC EQUIP

Active-passive type ankle joint prosthesis and movement mode thereof

ActiveCN102973338AMeet normal walking requirementsArtificial legsCarbon fibersCoronal plane
The invention discloses an active-passive type two-degrees-of freedom ankle joint prosthesis, comprising a carbon fiber energy storage sole, a motor, a speed reducer, a motor fixing supporting seat, a belt pulley transmission device, a carbon fiber pipe, a ball screw, an energy storage springs, joint bearings, energy storage rubber rings and joint supporting seats, wherein the carbon fiber energy storage sole is connected with the carbon fiber pipe through the joint supporting seats; the motor fixing supporting seat is connected with the carbon fiber pipe through an active pin; the motor is fixedly arranged on one end of the motor fixing supporting seat; the ball screw is fixedly arranged on the other end of the motor fixing supporting seat; two ends of the motor fixing supporting seat are connected by the belt pulley transmission device; the energy storage springs areis connected with a ball screw nut; and the energy storage rubber rings are connected with the joint bearings and the joint supporting seats through a shaft. The ankle joint prosthesis provided by the invention not only can completely provide required energy for human gait, but also can adapt to various landforms; in addition, the ankle joint prosthesis can completely imitate movement angles of a human ankle joint on a sagittal plane or a coronal plane; and therefore, the normal walking requirement of an amputation patient can be satisfied better.
Owner:SHANGHAI JIAO TONG UNIV

Joint surface dynamic characteristic parameter testing device of rolling guide rail and testing method thereof

The invention relates to a joint surface dynamic characteristic parameter testing device of a rolling guide rail, which can be simplified to a single-degree-of-freedom system. The joint surface dynamic characteristic parameter testing device comprises a base, a mounting bottom plate, a rolling guide rail, a rolling guide rail slider, a bridge plate, a plurality of piezoelectric acceleration sensors, an exciter, an elastic rope, a rubber ring, a frame, an impedance head, a normal pressing bolt, a charge amplifier, a data collector, a power amplifier and a computer. Compared with the prior art,the joint surface dynamic characteristic parameter testing device has the significant advantages of compact structure and clear testing principle, and can simultaneously measure the joint surface dynamic characteristic parameters in the normal and lateral directions of the rolling guide rail. In addition, the device can measure the joint surface dynamic characteristic parameters under different load states by adjusting the pre-tightening force of the normal pressing bolt; the exciting force direction passes through the gravity center of the bridge plate during the measurement; the vibration signals of the bridge plate and the base can be measured at the same time; and the influences of basic vibration signals can be eliminated during the measurement of the system frequency response function. Therefore, the joint surface dynamic characteristic parameter testing device has the advantages of high efficiency, high stability and high accuracy.
Owner:NANJING UNIV OF SCI & TECH

Recyclable installation device of microseism sensor and installation method

The invention discloses a recyclable installation device of a microseism sensor and an installation method. The installation device includes a base, installation rods, an injection pipe, a rubber ring and a double sleeve. During installation, the microseism sensor is placed outside an installation hole. The microseism sensor is connected and fixed with the steel base through the installation rods and the double sleeve. The base is coupled with a rock body through cement mortar. Microseism signals are spread to the microseism sensor by the steel base through the installation rods. During recycling, screws on the double sleeve are screwed outside the installation hole so that the microseism sensor is recycled and the installation rods are rotated and pulled out outside the installation hole for recycling. The recyclable installation device of the microseism sensor and the installation method solve a problem that a microseism sensor is difficult to fix, maintain, protect and retract and are capable of receiving and acquiring vibration signals near any position and at the same time, positioning precision of a microseism source is ensured and the cost of microseism monitoring is saved. The recyclable installation device of the microseism sensor and the installation method are widely applicable to microseism monitoring of projects such as underground workshops, tunnels, slopes and roadways and the like.
Owner:INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI

Axial seal hoop quick-opening horizontal type deep sea simulation cabin

The invention discloses an axial seal hoop quick-opening horizontal type deep sea simulation cabin which comprises a front end cover, a barrel body, a rear end cover, a saddle, a circular hoop and a hoop locking mechanism. The front end cover is placed on the saddle and supported by a movable frame. One end of the front end cover stretches out in the axial direction to form an annular step, the annular step is provided with at least two rectangular grooves, and O-shaped rubber rings I are mounted in the rectangular grooves. The annular step stretches into the end of the barrel body, the annular step and the inner wall of the barrel body are sealed through the O-shaped rubber rings I, and the front end cover and the end of the barrel body are connected and locked through the annular hoop and the hoop locking mechanism. A cylindrical boss is arranged at one end of the rear end cover in the axial direction. The cylindrical boss is provided with a rectangular groove in the circumferential direction, the cylindrical boss stretches into the tail end of the barrel body, and the cylindrical boss and the inner wall of the barrel body are sealed through an O-shaped rubber ring II in the rectangular groove. The rear end cover is connected with the tail end of the barrel body through a flange. The barrel body and the front end cover are in an axial seal structural mode, and therefore the sealing reliability of the horizontal type deep sea simulation cabin can be improved obviously.
Owner:BEIJING UNIV OF TECH

Civil engineering material volume change test instrument and test method

The invention relates to a civil engineering material volume change test instrument and a test method, in particular to a material volume change test device and test method in civil engineering. According to the test instrument, a sealing rubber ring is arranged in an annular groove, a base is covered with an upper cover, an air intake and exhaust hole is formed in the top end of the upper cover, one end of a probe thermometer is arranged in the upper cover, the other end of the probe thermometer is arranged outside the upper cover, a plastic pipe is arranged on the upper end face of the upper cover and communicated with a cavity, and a graduated glass pipe is communicated with the plastic pipe. The test method comprises the steps that first, a civil engineering material test piece is prepared; second, the volume of the civil engineering test piece before a test is calculated; third, the civil engineering test piece is installed; fourth, liquid is injected into the cavity; fifth, the temperature of the civil engineering test piece is measured in an initial temperature environment; sixth, the temperature of the civil engineering test piece is measured in a measuring temperature environment; seventh, the initial temperature and the measuring temperature of the test piece are measured, and the number of division of the test piece is calibrated; eighth, the volume variation theta Vt of the civil engineering test piece is calculated; ninth, the volume expansion coefficient lambda of the civil engineering test piece is calculated. The civil engineering material volume change test instrument and the test method are used for measuring the volume change situation of the civil engineering material.
Owner:HARBIN INST OF TECH

Adhesive tape encapsulating structure of organic light emitting diode

The invention relates to an adhesive tape encapsulating structure of an organic light emitting diode (OLED). According to the adhesive tape encapsulating structure of the OLED, adhesive tape encapsulation is carried out on the OLED formed by a front electrode, an organic layer, a back electrode and a protection layer, the front electrode, the organic layer and the back electrode are arranged on the upper face of a substrate, the OLED is sealed through adhesive tape which is arranged on the upper face of the OLED and formed by an adhesive sticker and a flexible film strip capable of preventing water vapor and oxygen from passing through, an air barrier layer formed by multilayer films of multilayer thin films made of different materials is further arranged on the upper face or the lower face of the flexible film strip, a layer of filter film can be further arranged on the lower face of the flexible film strip, a sealing rubber ring is arranged on the periphery of the sealing adhesive tape to cover the adhesive tape and the substrate so that air cannot permeate into the OLED from the periphery, and a thin glass sheet or a thin metal sheet can be further arranged on the upper face of the sealing rubber ring to prevent air from entering from the upper face. According to the adhesive tape encapsulating structure of the OLED, due to the fact that the main encapsulating process is the adhesive tape adhering process, the technological process of the adhesive tape encapsulating structure is much simpler relative to a previous method, the production speed can be improved, production cost is lowered, and the adhesive tape encapsulating structure is especially suitable for large-area and large-batch production.
Owner:SHANGHAI UNIV

Press fitting equipment and method for rubber ring of torsion damper

ActiveCN103567961AQuick pressThe pressing process is stableMetal-working hand toolsRubber ringHydraulic cylinder
The invention discloses press fitting equipment and method for a rubber ring of a torsion damper. The press fitting equipment comprises a working platform, wherein a positioning clamping mechanism used for positioning a wheel hub, an inertia ring and the rubber ring is arranged on the working platform; a hydraulic cylinder is arranged above the positioning clamping mechanism on the working platform; a press fitting mechanism is arranged at the end part, which is corresponding to the positioning clamping mechanism, of the piston rod of the hydraulic cylinder. The press fitting method comprises the following steps: sleeving a positioning mandrel with the wheel hub, placing the inertia ring inside a positioning groove on a positioning base, then mounting a rubber ring positioning seat on the positioning mandrel, pressing the wheel hub tightly, sleeving the rubber ring positioning seat with the rubber ring, enabling the hydraulic cylinder to work so as to drive the press fitting mechanism to press downwards for tightly pressing a guide block and enabling the guide block to be in contact with the inertia ring, enabling the press fitting mechanism to press downwards continuously, tightly pressing the inertia ring by spring receiving force, and tightly pressing the bottom end of a press fitting seat between the guide block and the rubber ring positioning seat to press the rubber ring between the wheel hub and the inertia ring. The production efficiency is high, and the quality of products is stable.
Owner:CHERY AUTOMOBILE CO LTD

Apparatus for testing three-dimensional stress state inside soil, and test method

ActiveCN105403330AAccurately reflect the stress stateReflect the state of stressForce measurementRubber ringShear stress
The invention provides an apparatus for testing a three-dimensional stress state inside soil. Six routine soil pressure boxes of the apparatus are respectively arranged at six side surfaces, apart from an upper surface and a lower surface which are parallel to each other, of an octahedral pedestal, gaps between the routine soil pressure boxes and the octahedral pedestal are filled with expansion water seal rubber rings, a soil pressure box data lead is connected with a soil pressure box element measuring reading device, and the gap between the soil pressure box data lead and the octahedral pedestal is filled with a polyurethane foam filler for waterproof sealing. The invention simultaneously provides a test method using the apparatus. The apparatus and method have the following advantages: the apparatus is visual in test, clear in calculation method, reasonable in structure, simple to operate and low in cost, errors caused by a conventional stress calculation mode are improved, if it is assumed that precision of a conventional soil pressure box is rho, the test precision of three kind of main stress through calculation is 1.0 rho, the test precision of three kind of shearing stress is 1.22 rho, and the average test precision is 1.11 rho. Improvement of precision can accurately reflect stress state of the soil and improves emergency capacity of engineering.
Owner:天津三为科技有限公司

Intermediate-jacking-station-free jacking construction device of ultra-long pipe roof and method thereof

The invention discloses an intermediate-jacking-station-free jacking construction device of an ultra-long pipe roof and a method thereof. The device comprises a tunnel portal pressurizing device and a pipe roof steel pipe, wherein the tunnel portal pressurizing device comprises a soil body, a jet-grouting pile and a grouting pipe; the jet-grouting pile and the grouting pipe are arranged outside the soil body; the jet-grouting pile is as a sealed waterproof wall; a steel protection cylinder is arranged in the jet-grouting pile; an outer end of the steel protection cylinder is orderly provided with a sealing rubber ring and a steel plate ring; a blind plate connected with the grouting pipe is arranged outside the steel plate ring. A lubricating grouting hole and a grouting connection and control device are arranged on the steel pipe of the pipe roof to reduce jacking resistance, at the same time, pressure of 0.1-0.5 mPa is formed in a 35 mm gap between a soil hole and peripheries of the pipe so as to resist deformation of a soil cave, and achieve the purpose of controlling settlement of a road face above the soil cave. The device and the method provided by the invention have the advantages that negative factors caused by an intermediate jacking station structure in use are removed on the basis of carrying out the intermediate-jacking-station-free jacking method; the problem that jacking construction of the ultra-long pipe roof is difficult is solved; the jacking force for construction is small; the construction precision is high; and the settlement degree is low.
Owner:BEIJING ENG COMPANY LIMITED OF CHINA RAILWAY URBAN CONSTR GRP

Water jet driving spray-head with elevation angle automatic-adjustment function

The invention relates to a water jet driving spray-head with an elevation angle automatic-adjustment function, belonging to key equipment for a water- saving irrigation and sprinkling irrigation system and being suitable for solving the problem that the jet range automatically changes when the spray-head rotates. The water jet driving spray-head comprises a mounting riser, a guide rail disc, a spray-head rotator, a spray-head elbow, an elevation angle adjusting mechanism, a spray pipe, a jet element body and a guide rod, wherein a rail is arranged at the periphery of the guide rail disc, and the guide rail is set according to the change rule of the jet range; the elevation angle adjusting mechanism consists of an internal spherical surface joint, an outer sleeve, an internal spherical surface joint and a rubber ring; and when the spray head works, the spray pipe rotates to drive the guide rod to rotate together, the guide rod extends into one end of the guide rail and travels along the guide rail, the guide rail moves up and down due to periodic vertical change of the guide rail, the spray pipe moves up and down while horizontally rotating so as to drive the internal spherical surface joint to rotate along the radian of the spherical surface in an up-down angle range, and therefore the elevation angle of the spray-head can be automatically adjusted.
Owner:JIANGSU UNIV ZHENJIANG RES INST OF FLUID ENG EQUIP TECH
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