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10241 results about "Rubber ring" patented technology

Dynamic characteristic parameter test device and method of sliding guide rail junction surface

The invention relates to a dynamic characteristic parameter test device of a sliding guide rail junction surface, which can be simplified into a single degree of freedom system. The device comprises a base, an installation platform, a fixed guide rail, a wedge-shaped block, an inlaid strip, a sliding block, a plurality of piezoelectric type acceleration sensors, a vibration exciter, an elastic rope, an impedance head, a stand, a normal force applying bolt, a rubber ring, a charge amplifier, a data acquisition unit, a power amplifier and an electronic computer. Compared with the prior art, thedynamic characteristic parameter test device has the advantages that: the structure is compact, the test principle is distinct, dynamic characteristic parameters of the junction surface under different load states can be measured by adjusting the pretightening force of a normal force applying bolt, the vibration exciting force direction passes through the gravity of the sliding block during measurement so that vibration signals of the sliding block and the base can be measured simultaneously, the influence of the vibration signals of the base is eliminated when a frequency response function of a system is calculated, and the characteristics of high efficiency, high stability and high precision are achieved.
Owner:NANJING UNIV OF SCI & TECH

Welding device for side sealing plate barb of switch cabinet

The invention relates to the technical field of manufacturing of low-voltage drawer-type switch cabinets and discloses a welding device for a side sealing plate barb of a switch cabinet. The welding device comprises an electric welding machine, a spot welding gun, supporting pillars, a lower base, an electric conduction block, a suspending plate and an upper seat. The electric welding machine is provided with two electrodes, and the spot welding gun is connected with one of the electrodes. Clamps are arranged on the lower seat, and the suspending plate is connected with the upper seat through an air cylinder. The electric conduction block is connected to the suspending plate. The electric conduction block is electrically connected with the other electrode. The spot welding gun is connected to the suspending plate and is provided with a barb fixing structure. The supporting pillars comprise damper springs, upper sections and lower sections, wherein the upper sections and the lower sections are sleeved together. The upper ends of the upper sections are provided with connecting rings, inner rings are arranged in the connecting rings in a penetrating mode, the inner rings and the connecting rings are connected together through rubber rings, and connecting pins connected to the lower seat are arranged in the inner rings in a penetrating mode. The welding device has the advantages that a welded part does not need to be fixed manually, and the vibration isolation effect is good; the problems that much effort is cost in welding and the welding quality is poor due to welding by manually fixing the welded part are solved.
Owner:张进

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

Floating bulwark with flexible structure

The invention discloses a floating bulwark with a flexible structure. The floating bulwark with the flexible structure comprises multiple water surface wave absorbing structural units, an underwater wave absorbing structure and an anchoring system. Each water surface wave absorbing structural unit comprises at least two cylinder-shaped floating cylinders. Every two adjacent cylinder-shaped floating cylinders are connected through a connection column in a rigid mode. The underwater wave absorbing structure comprises a wave-proof net and wave-proof balls. The wave-proof net is arranged below the cylinder-shaped floating cylinders. All the water surface wave absorbing structural units are elastically connected through connecting devices. With the cylinder-shaped floating cylinder connection structures and especially the double-connection-cylinder structures, materials can be effectively saved or the width of the bulwark can be effectively increased. By absorbing wave energy on the water surface and below the water surface, facilities can work normally. The connection devices can connect all the modules into a whole to fight against waves and collision among all the modules can be avoided. A concave steel plate can facilitate replacement of an aged rubber ring. The anchoring system can ensure safety working of the floating bulwark under the action of the waves, and meanwhile, the floating bulwark can work normally in water zones where piling is not convenient.
Owner:JIANGSU UNIV OF SCI & TECH +1

Real-time tunnel boring machine (TBM) hob abrasion monitoring device

The invention discloses a real-time tunnel boring machine (TBM) hob abrasion monitoring device based on an inductive displacement transducer. The device is characterized in that the inductive displacement transducer is installed in a transducer base, a lead pin is connected onto the inductive displacement transducer, and the internal gap of the transducer base is filled by an AB glue. A zirconia protection sleeve and the transducer base are installed in a transducer positioning sleeve, and a waterproof rubber ring is assembled in a groove of the transducer positioning sleeve. A small waterproof rubber ring is sealed between the zirconia protection sleeve and the transducer positioning sleeve, and a large waterproof rubber ring is sealed between the zirconia protection sleeve and the transducer base. The transducer positioning sleeve is installed into round holes in the middle of the side surfaces of a cutter head reinforcing plate and a tool apron, and the transducer base and the cutter head reinforcing plate are fixed into a whole through bolts. Hob abrasion signals which are detected by the inductive displacement transducer are processed by a signal transformer and then transmitted in a wireless manner. The device can be suitable for severe working environments of a hob and monitors the hob abrasion in real time.
Owner:CENT SOUTH UNIV

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

Automatic assembly production line for plastic package motor

The invention particularly relates to an automatic assembly production line suitable for a plastic package motor. The automatic assembly production line mainly comprises a wave coil feeding mechanism and a motor transplanting mechanism and is characterized by further comprising a rotating table and a divider for driving the rotating table to rotate intermittently, the rotating table is erected on the divider and provided with a plurality of stations for placing stators, a lower cover press-fitting mechanism, a bearing press-fitting mechanism, a rotor transplanting mechanism, an upper cover press-fitting mechanism and a rubber ring press-fitting mechanism are sequentially arranged around the rotating table, the lower cover press-fitting mechanism is used for press-fitting of lower covers and the stators, the bearing press-fitting mechanism is used for press-fitting of rotors and bearings, and the rotor transplanting mechanism is used for transferring the rotors and the bearings after press-fitting to the rotating table and inserting the rotors and the bearings into the stators. The wave coil feeding mechanism is located between the lower cover press-fitting mechanism and the bearing press-fitting mechanism, and the motor transplanting mechanism is located on the next process station of the rubber ring press-fitting mechanism. The size of equipment is reduced, occupied area is saved, and the divider and all the press-fitting mechanisms are matched tightly, so that the production period is shortened to seven seconds, labor is reduced, and production efficiency is improved.
Owner:广州金和精密机电设备有限公司

Electromagnetic interference preventing embedded type multifunctional piezoelectric intelligent aggregate of concrete structure

The invention discloses electromagnetic interference preventing embedded type multifunctional piezoelectric intelligent aggregate of a concrete structure, which comprises a metal shielding base, a metal shielding cover, d33 mode piezoelectric ceramic chips, an insulating rubber ring, a conducting strip, an epoxy resin insulating layer, a shielding lead and a shielding joint, wherein positive electrodes of the two piezoelectric ceramic chips are arranged face to face; the conducting strip is placed between the positive electrodes of the two piezoelectric ceramic chips; the conducting strip is welded with the positive electrode of the shielding lead to form a whole; a peripheral shielding line of the shielding lead is welded with the metal shielding base to form a whole; the side surfaces of the piezoelectric ceramic chips are banded by utilizing the insulating rubber ring; the metal shielding base is connected with the metal shielding cover to form a whole through a screw thread, and certain precompression is applied to the upper surface and the lower surface of the whole; after the connecting parts of the metal shielding base and the metal shielding cover are welded, an epoxy resin insulating waterproof layer is coated on a metal shell; and after the metal shell is air-dried after 24 hours, the piezoelectric intelligent aggregate is formed. Certain coarse sand can be pasted tothe metal shell when the epoxy resin is coated on the outer part of the metal shell, so as to guarantee good compatibility between a sensor and concrete. The piezoelectric intelligent aggregate has the advantages of remarkable shielding effect, interference exemption of a concrete internal stress field, overall process monitoring of concrete internal dynamic damage evolution, explicit force bearing path, simple structure and low construction cost.
Owner:DALIAN UNIV OF TECH

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

Rotary dynamic metal corrosion testing device and using method thereof

ActiveCN103454210AGuaranteed tightnessAchieving Relative Motion Rate ChangesWeather/light/corrosion resistanceEngineeringLiquid metal
The invention relates to the field of high-temperature corrosion of liquid metal and particularly relates to a rotary dynamic metal corrosion testing device and a using method thereof. The device is provided with a gas path and sealing system, a temperature control and reactor system and a lifting and rotating system, wherein the gas path and sealing system mainly comprises a vacuum pump, a resistance type vacuum gauge, a gas mixing device and a gas flow controller; the temperature control and reactor system mainly comprises heating elements, a temperature measuring element, an artificial intelligent temperature controller, a heat resistant steel experiment cavity, an experiment cavity upper sealing cover and glass lining; the lifting and rotating system mainly comprises a stepping motor, a sliding slipway, a ball screw, limiting stoppers, a rotary rod and a sample holder. According to the device, the experiment environment atmosphere is controllable through the extrusion sealing mode of metal and a high-temperature rubber ring, the experiment temperature is accurate and controllable through intelligent temperature control, the relative movement of a sample and a corrosive medium (liquid metal) is realized through the mode that rotary motor drives an agitator arm to rotate, and high-temperature dynamic corrosion experiment is realized under the simple dynamic equipment composing condition.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

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
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