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1179results about How to "Easy to install and adjust" patented technology

Wax injection mold for investment casting of hollow turbine blades and method for rapidly manufacturing wax injection mold

The invention discloses a wax injection mold for investment casting of hollow turbine blades and a method for rapidly and accurately manufacturing the wax injection mold. The mold consists of a cavity mold, a mold core and an accessory structure, wherein the cavity mold comprises an upper mold and a lower mold of a combined structure; each mold block forming the cavity mold consists of an external aluminum mold frame, an internal cast zinc alloy inlay and a conformal cooling copper pipe embedded into the inlay; a mold core positioning piece which can be decomposed at a high temperature is arranged on a longitudinal rib of the mold core; and water-soluble core blocks used for forming exhaust openings in the rear edges of the turbine blades are arranged on rear edge ribs of the mold core. The matching precision of the mold core positioning piece and the cavity mold is guaranteed by adopting a cavity mold interior running-in method, and the matching precision of the water-soluble core blocks and the cavity mold is guaranteed by adopting a cavity mold interior adhesion method. The wax injection mold disclosed by the invention is low in manufacturing cost and short in period, and the high wax pattern precision and core positioning precision can be obtained.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Wheel-rim electric axle

The invention relates to a wheel-rim electric axle for an electric automobile, belonging to the technical field of motor-driven rear axle assemblies of passenger car chassises. The wheel-rim electric axle comprises a rear axle shell assembly, two water-cooling brushless direct-current permanent magnet motors, two rear axle main reducing gear assemblies, two rear axle wheel-rim reducing gear assemblies and the like. The invention changes the transmission direction and enlarges the torque to achieve the purpose of first-stage speed reduction by using the two high-torque water-cooling brushless direct-current permanent magnet motors to simultaneously drive the left and right rear axle main reducing gear assemblies, achieves the purpose of second-stage speed reduction by the rear axle wheel-rim reducing gears, and drives the entire wheel part by using a planetary wheel to drive the wheel-rim reducing gear shell and the rear wheel hub. The wheel-rim electric axle is applicable to various large electric passenger cars, achieves high transmission efficiency, omits the transmission case and the transmission shaft, can simultaneously realize the middle-engine rear-drive, and omits the electro-hydraulic controlled articulated driving device and the automatic gearbox. Besides, the invention overcomes the problems that the axle of the existing electric automobile has low transmission efficiency and the hub motor transmission structure can be only used for small cars such as sedans.
Owner:HUBEI AXLE

Integrated engine brake rocker arm structure

The invention belongs to the technical field of engines, and particularly relates to an integrated engine brake rocker arm structure. A rocker arm is arranged on a rocker arm shaft, a roller is arranged at one end of the rocker arm and connected with a venting cam in a contacting manner, a brake mechanism with a one-way valve structure is arranged at the other end of the rocker arm and operates a venting gate bridge, an oil control valve mechanism is mounted on the rocker arm between the brake mechanism and the rocker arm shaft, a brake oil channel and a lubricating oil channel are formed in the rocker arm shaft, a first brake oil channel communicated with the oil control valve mechanism and a second brake oil channel communicated with the oil control valve mechanism and the brake mechanism are formed in the rocker arm, the first brake oil channel is connected or disconnected with the second brake oil channel through the oil control valve mechanism, rotation of the venting cam drives the rocker arm to swing around the rocker arm shaft, and the venting cam is matched with a solenoid valve signal to drive the oil control valve mechanism and the brake mechanism to act, so that the action of the venting gate bridge is controlled. The brake mechanism of an engine is integrally modular, simple, low in cost, convenient to mount and adjust and wide in applicability.
Owner:ZHEJIANG KANGHE MECHANICAL ENG CO LTD

Automobile hydraulic electric power steering reliability test bench and program control test method

The invention relates to an automobile hydraulic electric power steering reliability test bench and program control test method. An input system comprises a servo motor, a reducer and a universal joint connected with the input end of a steering gear; an output system comprises a linear hydraulic cylinder with two functions of driving and load simulation, the front pole of a hydraulic cylinder piston is provided with a pressure sensor and connected with the rocker arm of the output end of the steering gear by a coupler with a joint bearing. An eccentric shaft, an eccentric bushing and a variable frequency motor are arranged at the inner bore of the rear lug of the hydraulic cylinder to form an automobile vibration simulation system, so as to simulate real vibration of rugged road surface. The hydraulic cylinder is compact and simple in structure, system integration is high and usable range is wide. The joint bearing causes the installation to be convenient. The hydraulic loop includes a throttle valve, thus speeding up oil-taking. An industrial personal computer, a motion control card and a data acquisition card are used, so that system stability is high, measurement accuracy is high, and response speed is fast. Curves and process control can be displayed in real time, and automatic save, plotting and printing can be realized. The test bench set can complete all reliability tests of fatigue, wear, forced steering, inverse overload and overpressure.
Owner:SICHUAN UNIV

Locking and unlocking mechanism of power-driven sliding plug door

A locking and unlocking mechanism of a power-driven sliding plug door comprises a locking and unlocking assembly and a motor rocker driving assembly. The locking and unlocking assembly comprises an unlocking rocker, a left rocker, a right rocker, a draw bar and a knuckle bearing connection rod, wherein the locking and unlocking assembly is connected with the motor rocker driving assembly through the knuckle bearing connection rod; and the motor rocker driving assembly drives the locking and unlocking assembly to actuate through the knuckle bearing connection rod. When a door sash is opened, a motor rotates, and a casing of the motor rotates reversely due to overlarge resistance to drive the driving rocker and the unlocking rocker to swing, so that the unlocking rocker passes through a locking dead point in swinging mode to achieve unlocking; and when the door sash is closed, the unlocking motor rotates reversely, when the unlocking motor reaches the position the door sash needs to be closed, the casing of the motor rotates reversely due to increased door closing resistance to drive the driving rocker and the unlocking rocker to swing reversely, and when the unlocking rocker passes through the locking dead point, locking can be achieved. The locking and unlocking mechanism is simple in structure, low in cost, convenient to install and adjust, high in reliability and good in safety.
Owner:河北博得交通设备有限公司

In-orbit monitoring method for 6 freedom change between space three-linear array CCD camera lens

The invention relates to an on-line monitoring method of the change of six freedom degrees between the lenses of an astronautical CCD camera with three linear arrays. A laser emitting and receiving device which comprises a laser source, an optical fibre coupler, a laser aligner, a semi-transparent semi-reflecting mirror and a first area array CCD camera is rigidly fixed on a camera lens A, and a laser reflecting and receiving device which comprises a plane mirror, a second area array CCD camera and a third area array CCD camera is rigidly fixed on the a camera lens B. The optical fibre coupler divides lasers emitted from the laser source into three paths, and then, the lasers are respectively aligned by the laser aligner and are output, wherein two paths of the lasers are respectively and directly projected on the two area array CCD cameras of the laser reflecting and receiving device, and the other path of the lasers are reflected on the single area array CCD camera of the laser emitting and receiving device. The change of three rotating freedom degrees and three translational freedom degrees between the lenses of the astronautical camera is solved through the change of facula positions on each area array CCD camera. In the invention, a non-contact measurement method is adopted, the structure of the astronautical camera can not be changed, the processes of installation and adjustment are convenient, the structure is compact, and the on-line operation mode can be achieved.
Owner:BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH +1

Detection device for disconnecting link opening and closing in place

The invention discloses a detection device for disconnecting link opening and closing in place, comprising an auxiliary contact of disconnecting link movement, wherein the auxiliary contact of disconnecting link movement is connected with an operation protector, a condenser reflector is arranged on a moving contact of the disconnecting link, light transmitting and receiving devices are installed on the security platform of the disconnecting link base, one set of light transmitting and receiving devices transmit and receive the light beam reflected back by the condenser reflector of the disconnecting link when the disconnecting link is closed in place, another set of light transmitting and receiving devices transmit and receive the light beam reflected back by the condenser reflector of the disconnecting link when the disconnecting link is opened in place. The output terminal of the contrast and judgment circuit of the light transmitting and receiving device is connected with the auxiliary contact of the disconnecting link so as to judge whether the opening and closing of the disconnecting link is in place. The signal is transmitted to the operation protector as monitoring signal for remote operation. Compared with the prior art, the invention can effectively detect the condition of the opening and closing of the disconnecting link, thereby avoiding the occurrence of the vicious accidents caused by misoperation as the opening and closing of the disconnecting link is out of place. The invention can be widely applied in devices such as disconnection disconnecting linkes, grounding disconnecting linkes and load disconnecting linkes, etc.
Owner:NANYANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER

Recycled constant-temperature ceramic floor integrated system

The invention relates to the field of building materials, in particular to a recycled constant-temperature ceramic floor integrated system. The recycled constant-temperature ceramic floor integrated system comprises floor tiles, wherein a plurality of grooves are formed in the bottom surfaces of the floor tiles. The bottom surfaces of the floor tiles are connected with base plates, support assemblies are arranged among the grooves and the base plates in a laid mode and comprise heat-conducting pieces and locating supports which are installed in an up-and-down lapping mode, reflecting films are arranged among the heat-conducting pieces and the locating supports, the base plates are made of plate pieces of a net structure, and hasp grooves and hasp blocks are arranged on the peripheries of the base plates. According to the recycled constant-temperature ceramic floor integrated system, the structure is arranged in a modular split joint mode, the support assemblies are arranged among the floor tiles and the base plates in a laid mode, the support assemblies needed by water heating or electric heating can be correspondingly arranged combining with requirements for specific using conditions, the structure is tight and firm after the support assemblies are assembled, sliding, displacement and slipping are not prone to occurring, the whole operation, adjustment and installing are conveniently conducted, replacement of different floor heating modes is achieved, the problem that the structure can only be laid in a single floor heating mode is completely solved, laying is economical, the floor tiles can be recovered and recycled, and universality of products is high.
Owner:FUJIAN LOPO TERRACOTTA PANELS MFG

Monocular vision measuring method of non-contact precision measuring corner

The invention discloses a monocular vision measuring method of a non-contact precision measuring corner, belonging to the technical field of photoelectric detection and aiming at realizing wider measuring range, high measuring precision and more convenient operation. Based on a monocular vision principle, the method comprises the following steps of: fixing a test target with a double-circle sign on an object to be measured parallel to a rotating shaft; photographing a target surface by using a position-fixed digital camera; selecting a group of characteristic points and characteristic parameters of an image surface to establish a set of computing method and formula for solving the corner by taking an image of the double-circle sign as an oval; processing photos by using a sub-pixel processing method, solving an equation of an image surface oval and image surface coordinates of the characteristic points and solving a plane equation of the target surface and a corner of the object to be measured; accurately solving the position of an image point in the center of a circle without marking the position of the center of a circle of the target surface; and correcting a measuring error caused by unparallel relations of the target surface and the rotating shaft by using data obtained in the measuring process. The invention has the advantages of simple installation and adjustment of equipment, high measuring precision, high practicability and capability of being used for marking angular displacement transducers such as a rudder, a horizontal rudder of an aircraft and the like on site of an airport.
Owner:ZHONGBEI UNIV

Door body adjusting device for embedded dish washing machine

The invention relates to a door body adjusting device for an embedded dish washing machine. The device mainly comprises an upright post, a fixing block, a spring adjusting rope I, a spring, a hinge fixing plate, an adjusting bolt mechanism, a hinge plate, a door body, a spring adjusting rope II and a fixed pulley, wherein the hinge fixing plate is fixed on the upright post; the hinge plate is fixed on the door body; the adjusting bolt mechanism and the fixed pulley are fixed on the hinge fixing plate; the spring adjusting ropes are hung at the two ends of the spring; the other end of the spring adjusting rope I moves around the fixing block on the top and the adjusting bolt mechanism and is fixed on the hinge fixing plate; and the other end of the spring adjusting rope II moves around the fixed pulley on the lower side and is fixed on the hinge plate. The elongation of the spring is controlled through the axial position of a spring adjusting rope adjusting plate in the adjusting bolt mechanism. By a hinge mechanism and a door body mechanism for the embedded dish washing machine, the door body can be automatically closed in 0 to 30 degrees and stops at any position in the range of 30 to 90 degrees, and the device has the characteristics that: the device has a simple structure and is convenient to install.
Owner:HAIER GRP CORP +1

Elastic coupling dynamic and static torsion rigidity simple testing device and method

ActiveCN106052983AAvoid Bending-Torsion CouplingEasy to install and adjustElasticity measurementTurn angleCoupling
The invention provides an elastic coupling dynamic and static torsion rigidity simple testing device and method. One end of an elastic coupling is fixed, and a loading arm and a torque preloading device are arranged on the other end. The torque preloading device is used to preload torque of a certain degree, a turning angle indicating gauge measures a static angular displacement of the coupling, a preload force is converted into preload static torque, and the static torsion rigidity of the coupling is obtained; and the loading arm is excited by a vibration exciter, an impedance head is utilized to measure the dynamic force and dynamic acceleration of an excited point of the loading arm, the force and acceleration are converted into the torque and dynamic angular displacement, and finally the dynamic torsion rigidity of the coupling is obtained. According to the invention, a special test table is not needed, the installation and adjustment are convenient, both the static torsion rigidity and the dynamic torsion rigidity can be measured, the vibration exciter is used for dynamic loading, the exciting frequency and amplitude can be conveniently adjusted on line, and the torsion rigidity under different working frequencies can be conveniently tested; in addition, dual-bearing constraint is adopted, bending-torsional coupling generated when the coupling is excited is avoided, and the measuring result is more precise.
Owner:HARBIN ENG UNIV

Large-size multi-axis-linkage electrolytic machine tool

The invention discloses a large-size multi-axis-linkage electrolytic machine tool which comprises a machine tool body, an electrolytic machining pulse power source, an electrolyte circulating and filtering system and an integrated control system. The integrated control system can realize integrated control on machine tool motion parameters, electrolyte parameters and pulse power source parameters; the electrolyte circulating and filtering system adopts parallelly-connected double loops to filter an electrolyte, so that the electrolyte input into a machining area is high in cleanliness, and the electrolyte circulating and filtering system has a function of automatically adjusting the electrolyte parameters ( temperature, concentration and pH value); the machine tool body comprises a bed body, a horizontal workbench, a turnplate, a spindle, a working box and a machine tool cover, and the machine tool can realize five-axis linkage; a numerical-control rotary table is arranged below the turnplate, a sliding device is arranged below the working box, and when a large-size workpiece and a cathode are mounted and adjusted, the working box can move to above the machine tool cover through the sliding device; a protecting device is arranged below the horizontal workbench and the turntable, so that the electrolyte can be effectively isolated from the numerical-control rotary table and a transmission mechanism.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Distribution machine used in concrete component production system

A distribution machine used in a concrete component production system comprises a machine frame, a distribution box arranged on the machine frame, a feeding hopper communicated with the distribution box, a storage tank communicated with the feeding hopper, a weighing mechanism and a feeding mechanism, wherein the weighing mechanism and the feeding mechanism are arranged on the machine frame. The feeding mechanism comprises a first drive device, a wheel shaft, star wheels and partition sleeves, wherein the wheel shaft is arranged in the distribution box and connected with the first drive device, the star wheels are arranged on the wheel shaft at intervals, and the partition sleeves are arranged between adjacent star wheels, a discharging opening is formed in the position, corresponding to the star wheels, at the bottom of the distribution box, a discharging gate plate is arranged on the discharging opening, and the discharging gate plate is matched with the distribution box in a sliding mode. The distribution machine has the advantages that distribution is uniform and stable, feed amount of concrete can be conveniently and quickly controlled according to actual needs, distribution efficiency is improved, precise measuring of the material quantity is achieved, waste of raw materials is reduced, and quality of products is well guaranteed.
Owner:HEBEI XUELONG MACHINERY MFG
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