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32 results about "Degree structure" patented technology

Degree Structures. Degree structures (also known as degree planners) show you the papers you need to complete for a particular degree (e.g. BA) and major subject (e.g. English). Most degree structures include specific papers that you have to complete, and papers that give you you a choice.

Hyperbranched great macromonomer, acrylate resin containing hyperbranched structure and preparation method

The invention discloses a over-branched big monomer: poly-fat type and (fat-amide) type over-branched big monomer through new pattern molecule designing, which is characterized by the following: adopting step-by-step extensions through many method such as infrared, GPC, acid value and hydroxyl value detection; applying the two over-branched big monomer to compounding acroleic acid pitch; preparing acroleic acid pitch with super high graft degree structure, lower viscosity.
Owner:CHENGDU ORGANIC CHEM CO LTD CHINESE ACAD OF SCI

Two-stage vibration reducing ankle-foot integrated parallel low-impact walking foot mechanism and controlling method

InactiveCN106828657AActive and controllable ankle-foot freedomBalance difficultyVehiclesHydraulic cylinderAnalog robot
The invention discloses a two-stage vibration reducing ankle-foot integrated parallel low-impact walking foot mechanism and a controlling method, which can be used for effectively reducing foot-ground impact force and are capable of performing active control. The walking foot mechanism comprises a foot-leg connecting platform, a food end bottom connecting platform, three groups of moving pairs, three groups of revolute pairs and three groups of ball pairs, a lower platform simulates the foot end of a robot, the moving pairs are driving pairs, and are used for simulating legs of the robot, an anti-vibration pad, with frictional force, is inlaid in the lower surface of the food end bottom connecting platform, and is used as first-stage vibration reduction, the three groups of moving pairs are arranged in a mirror symmetry manner, and each group of moving pair comprise a hydraulic cylinder, a spring damper, a servo valve and a controller, wherein the spring damper sleeves a cylinder piston rod of the hydraulic cylinder, and is used as second-stage vibration reduction, so that the whole mechanism forms a lower-mobility parallel mechanism with a three freedom degree structure, and two rotational freedom along the directions of x and y and a translational freedom degree along the direction of z are realized. The mechanism and method provided by the invention have the advantages that the plan and control of the robot are flexible and reliable, and the stability is high.
Owner:HARBIN INST OF TECH

Software-definition-based communication device supporting multi-protocol transmission

The invention provides a software-definition-based communication device supporting multi-protocol transmission. Network types and corresponding functions and parameters used for processing transmission protocols for all the network types are configured in advance by a configuration unit in the communication device; a signal back-end processing unit calls the functions provided by the configuration unit to package or analyze received bit signals through the transmission protocols; a signal front-end processing unit modulates and sends the bit information packaged by the signal back-end processing unit according to the network types and / or receives electromagnetic signals in corresponding networks according to the network types and modulates the electromagnetic signals into bit signals; a control unit controls the signal back-end processing unit to call the corresponding functions and controls the signal front-end processing unit to receive / send the corresponding bit signals on the basis of the network types configured by the configuration unit. The communication device is of a low-coupling-degree structure and can be not only used for processing bit signals in real time but also applied to different networks through flexible configuration.
Owner:SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI

Device for processing longhole

The invention discloses a device for processing a longhole. In the device, a scraper on a scraping part and a ball on a rolling part are driven by a driving part with a conical degree structure and a maintaining state of a pull rod is controlled by a feedback device, so that the structure of the device is reliable, the device is convenient to control and the processing efficiency of the processing device is high.
Owner:德州普利森机床有限公司

Self-lock connecting buckling part

ActiveCN102979789ASolve positioningTroubleshoot express installation issuesSheet joiningIdentification meansButt jointSelf locking
The invention discloses a self-lock connecting buckling part which comprises a first butt joint buckling part, a second butt joint buckling part and a self-lock part, wherein the first butt joint buckling part and the second butt joint buckling part are respectively fixed on two adjacent unit display screens, a butt joint pin of the first butt joint buckling part is inserted into a blind hole formed in the second butt joint buckling part, the butt joint buckling parts are buckled on butt joint connection parts, and the butt joint buckling parts and the butt joint connection parts are respectively provided with a gradual-fastening conical-degree structure and a gradual-fastening inclined-degree structure which are matched with each other. The self-lock part and the second butt joint buckling part are fixed on an identical unit display screen and are arranged on one side of the second butt joint buckling part. A rotating handle is locked by a self-lock tongue of the self-lock part. The self-lock connecting buckling part is capable of achieving precise positioning, butt-joint and self-locking of the unit display screens through structure design, and achieving the problems of positioning of the unit display screens and rapid installation. Meanwhile, the problems of the unit display screens such as unfairness, black screen clearance and black screen mosaics are also solved.
Owner:桂林海威科技股份有限公司

Servo controller

The invention provides a servo controller. To the servo controller in a double-free-degree structure, even a position detector in use has low resolution, fluctuation generated from an operation volume given from a forward feed controller to a feed back controller. And high precision control in high follow can be realized. An instruction generator converts an input position instruction from a resolution ratio of the controller to an inner position instruction having higher resolution ratio than the position detector. The feed forward controller utilizes a differential device (110), a filtering device (111) to generate a speed feed forward component (152) based on the inner position instruction. Based on the component, the differential device (110) and the filtering device (111) are utilized to generate a torque feed forward component. Since the resolution ratio of the inner position instruction is higher than the resolution ratio of the position detector, the fluctation generated in the feed forward components (152, 154) is less than those of utilizing the inner position instruction of the resolution ratio of the position detector.
Owner:MITSUBISHI ELECTRIC CORP

Optical fiber isolator and optical fiber laser

ActiveCN107238953AReduced isolationReduced spot ellipticityNon-linear opticsBeam splitterHalf wave
The embodiment of the invention discloses an optical fiber isolator and an optical fiber laser, and relates to the technical field of lasers. The optical fiber isolator comprises one or more light beam isolation structures, a coupling collimator, a transmitting energy fiber and an output collimator, wherein the transmitting energy fiber is connected with the coupling collimator and the output collimator; the light beam isolation structures comprise diaphragms, first beam splitters, magnetic optically-active crystals, magnets, half wave plates, fixing devices and second beam splitters, wherein the centers of light through holes of the diaphragms and the first beam splitters, the magnetic optically-active crystals, the half wave plates and center shafts of the second beam splitters are located in the same straight line; the optical-axis direction of the first beam splitters is mutually perpendicular to the optical-axis direction of the second beam splitters; the magnetic optically-active crystals are located in magnetic field areas of the magnets; the fixing devices drive the half wave plates to rotate to adjust the optical rotation angles of the half wave plates. The optical fiber isolator is simple in isolation degree structure and convenient to use.
Owner:MAXPHOTONICS CORP

Water level control valve with flow rate continuous control function

The invention discloses a water control valve with a flow rate continuous control function. The water level control valve comprises a valve body, a valve core, a valve body cover, a floating ball connecting device and a floating ball, wherein the water body is provided with a water inlet cavity and a water outlet cavity; a water outlet hole is formed in the side wall of the water outlet cavity; areturning spring is arranged in one end, connected with the water inlet cavity, of the water outlet cavity; the valve core is arranged in the water inlet cavity; a step hole matched with the retuningspring is arranged at the water inlet end of the valve core; a balance hole is formed in a water outlet end surface; the valve body cover is provided with a centre hole and a floating ball rod seat; the floating ball connecting device comprises a valve core mandrill and a floating ball rod; one end of the valve core mandrill passes through the centre hole to contact the valve core; and the other end of the valve core is connected with the floating ball rod. The water level control valve with the flow rate continuous control function has the advantages that: the flow rate at a valve port can change continuously according to the water level in a water pool; the water inlet cavity and the water outlet cavity form a 45-degree structure, so that the dead weight of the floating ball and the floating ball rod overcomes the frictional force of the valve core; therefore, the action of the valve is more flexible and reliable.
Owner:ZHEJIANG IND POLYTECHNIC COLLEGE

Shock absorption control method of aqueduct structure under action of random loads

The invention discloses a shock absorption control method of an aqueduct structure under the action of random loads. The method includes the steps that r controllers are added onto an n-freedom-degree structure, and a semi-active control system motion equation of the structure under input of random loads is established; a virtual stimulation method is adopted for simulating the random loads to introduce a state vector, and a state equation of the structure is determined; a performance objective function of a system is defined, a minimum value of the performance objective function is used, and feedback gain can be obtained; semi-active control is performed on virtual response through a magnetorheological damper, and therefore random shock of the aqueduct structure can be effectively controlled. According to the method, the semi-active control method is adopted for calculating the aqueduct structure under the action of the random loads, and random features of actual stimulation are represented with the virtual stimulation method; the method is simple and convenient to operate and solves the problem that the semi-automatic control system is influenced because output variables are disturbed randomly.
Owner:ZHENGZHOU UNIV +2

Digital art landscape device-based pixel tiled display method and server

The embodiment of the invention relates to the technical field of smart urban construction and discloses a digital art landscape device-based pixel tiled display method and a server. The method comprises steps of acquiring a to-be-displayed image, searching pixels in a three-dimensional model corresponding to a digital art landscape device to acquire a target pixel splicing area adaptive to the to-be-displayed image, and sending the to-be-displayed image to the target pixel splicing area for displaying. The digital art landscape device has a plurality of 360-degree-structured display module layers alternatively distributed along the same vertical axis; each display module layer is divided into a plurality of different-structured independent display modules; and a certain gap is formed between any two adjacent different-structured structured independent display modules on the same display module layer. According to the embodiment, UV seamless connection can be realized; image displaying effect can be improved and excellent visual experience can be enhanced.
Owner:GUANGZHOU LEAFUN CULTURE SCI & TECH

Steering engine driving type shoulder disarticulation type upper prosthesis

InactiveCN102525693AEasy to transplantIncreased number of degrees of freedom of movementArtificial handsEngineeringProsthetic knee
The invention discloses a steering engine driving type shoulder disarticulation type upper prosthesis, which is formed by connecting a shoulder joint, an upper arm, an elbow joint, a front arm, a wrist joint and a mechanical arm, wherein both the rotation action of the shoulder joint, the elbow joint and the front arm and the wrist joint adopt a steering engine mechanism, and the steering engine mechanism is a steering engine mechanism with position feedback, speed feedback and temperature feedback functions. Because the steering engine mechanism is adopted, light weight, convenience and flexibility are realized, the operation is convenient, the movement freedom degree number of the shoulder disarticulation type upper prosthesis can be increased, the robot technology is conveniently transplanted to the upper prosthesis technology, particularly, the shoulder part of the shoulder disarticulation type upper prosthesis is provided with two freedom degree structures with humanoid functions, and in addition, the size is compact, so the appearance of the upper prosthesis is natural, and the use requirement of wearers can be preferably met.
Owner:SHANDONG UNIV OF SCI & TECH

Snowflake type OPGW over-cable rack

The invention discloses a snowflake type OPGW over-cable rack which comprises a body and a sign board. The body comprises three strip-shaped bodies distributed in a 60-degree structure similar to a snowflake type with the middle as an intersection point. The sign board is arranged on one side face of the intersection point. Arc-shaped hooks are arranged on the front portions and the rear portions of the two ends of each strip-shaped body. Every two arc-shaped hooks are distributed in a back-to-back mode, hook openings are outward, and locking devices are arranged on the hook openings. The strip-shaped bodies on the two sides of the intersection point of each strip-shaped body are each provided with fixing holes. The snowflake type OPGW over-cable rack has the advantages that practicality is good, the over-cable rack is attractive and elegant, the insulating and fixing reliability degree of an OPGW can be enhanced, the OPGW is separated from a common cable, the OPGW and the common cable are not intersected or knotted, investment cost is low, popularization is easy, and application prospects are good.
Owner:STATE GRID FUJIAN ELECTRIC POWER CO LTD +2

Color display color-combining device based on three primary colors of red, green and blue

InactiveCN102436067ALow costColorful and richOptical filtersAngular degreesPrism
The invention relates to a color display color-combining device based on three primary colors of red, green and blue. The device comprises a pentagonal prism and two 22.5 degree right-angle prisms, wherein the angles of the pentagonal prism are 90 degrees, 112.5 degrees, 112.5 degrees, 112.5 degrees and 112.5 degrees; the angles of each right-angle prism are 22.5 degrees and 67.5 degrees; the 67.5 degree angles of the two right-angle prisms and the 112.5-degree angles of the pentagonal prism form a 180 degree structure; filter films are plated on the connected surfaces of the pentagonal prism and the two 22.5 degree right-angle prisms; and anti-reflection films are plated on an emergent surface and an incident surface. The device has the advantages of simple structure, high damage threshold value, low manufacturing cost and high light-combining efficiency, and is convenient to glue.
Owner:FUJIAN CASTECH CRYSTALS

A secondary protein structure prediction method

This invention relates to a data mode-establishing method based on the constituted protein three-kyrine structure microenvironment or folding tendency factors and its protein two-degree structure prediction method based on this database. We designs and codes a computer application program on this base. This invention can be used in the design of the whole new protein or its break molecule and is helpful to the whole new biological design.
Owner:NANJING UNIV

Multi-freedom-degree hole making device

The invention discloses a multi-freedom-degree hole making device. The technical problem about hole making of complex surfaces is solved. The device comprises an attitude adjusting part, a hole makingexecuting part and a supporting part. All shafts of the multi-freedom-degree hole making device are adjusted according to to-be-machined positions, the hole making executing part reaches a preset position, and therefore hole making is completed through step-by-step actions. By means of the device, on one hand, by means of the parallel multi-freedom-degree structure, independent control over all freedom degrees is achieved; on the other hand, by the adoption of the design of the fixed tail end and the suspended front end, attitude adjusting of the hole making executing part is achieved; and bymeans of worm wheels and worms, the structure is compact.
Owner:BEIHANG UNIV +1

Intelligent sound box

The invention discloses an intelligent sound box. A main circuit structure of the intelligent sound box is installed on a loudspeaker body and a semi-finished product, so that the whole machine can betested, the performance test of the whole machine is facilitated, and the repair time is saved; The keys are buffered by silica gel, and the key covers are mounted in the covering shell, so that theuniformity of gaps of the shell is ensured, the key covers are prevented from generating vibration sound, the use of key countermeasure auxiliary materials is optimized, and the cost is saved; The main board and the power board adopt a quick-plug 90-degree structure, so that the area of the main board is saved on the premise of ensuring the appearance, and the plugging stability of the external terminal is ensured; The sound separation plate and the lower cover are fused into a whole, so that the cost and the structural space are saved while the sound output effect is ensured; The overall cloth covering effect is used for appearance, appearance changes are diverse, the processing difficulty of the overall appearance mold closing line of the shell is reduced, and surface processing such asspraying of the shell is avoided.
Owner:SOUNDAI TECH CO LTD

Pulse detector with high interference resistance

The invention relates to a pulse detector with high interference resistance. The pulse detector with high interference resistance comprises two sensors in an inverted series connection mode, wherein a certain interval is maintained between the two sensors by utilizing a high-electricity and vibration insulation degree structure; the induction surface of one main sensor is provided with multiple probes which are arranged at preset intervals; the multiple probes transmit the pulse signals which are independently detected to the induction surface of the main sensor; the pulse signals received bythe induction surface of the main sensor are superposed by the signals detected by each probe; the pulse signals induced by the other auxiliary sensor in the inverted series connection mode are relatively weak because of the insulation action of the high-electricity and vibration insulation degree structure; and other interference signals induced by the two sensors with the same physical structure have the same strength and the opposite directions, thereby obtaining the pulse signals with basically counteracted interference, high signal-to-noise ratio, stability, reliability and insensitive positions after superposition. A reliable 24-hour pulse real-time monitoring system which can be actually applied in daily life can be established by utilizing the pulse detector with high interferenceresistance.
Owner:GUANGDONG TIANQI PHARMA CO LTD

Blower

In a conventional pipeline blower, a movable side rack of a frame is a starting rack approximately 180-degree structure, and the bottoms of the movable side racks are pivoted to a free end of a fixed side rack and arranged on an outer periphery of the fixed side rack; a start / stop half-circle structure has disadvantages that the movable side rack is closed in front of another free end of the fixed side rack, i.e., part of a sealing pad of an opening portion of an upper portion of a frame annular rack is displaced in a cross side of the periphery direction; the frame has two openings and is formed by the fixed side rack and the movable side racks connecting / disconnecting the fixed side rack; in the frame, a fan arranged in the frame and a blower driving a motor of the fan, at least part of left-right dual-door forms the movable side racks; the bottom end of each movable side rack is pivoted to two free ends of the fixed side rack, wherein a first connecting point (pivot portion) and a second connecting point (pivot portion) are fixed outside the periphery of the fixed side rack, thus protecting sealing pads of the movable side racks.
Owner:FULTA ELECTRIC MACHINERY CO LTD

Radiating fins of crossflow cooling tower

The invention discloses radiating fins of a crossflow cooling tower, which mainly comprises a main body and is characterized in that: the main body is provided with concavo-convex hemispherical holes which are in staggered form; and two sides of the main body are provided with water collecting strips which adopt concavo-convex groove structure, and convex grooves are provided with convex conical bores. The radiating fins have the characteristics that: because the radiating fins adopt the inclined structure design, under the condition of the same area, the cooling circulating water has the advantages of largest heat exchange area, good radiating effect, fullest heat exchange, and the like; and because two sides of the radiating fins are provided with the water collecting strips, and the water collecting strips have 45 degree structure and good water collecting effect, and are directly designed on the radiating fins, so that the space occupied in the cooling tower is saved, the integral structure design of the cooling tower has the advantages of having small occupied area and good water collecting effect, saving the water resource and the like, and has popularization value.
Owner:SHANGHAI LIANGJI COOLING EQUIP CO LTD

Robot arm structure

PendingCN107972068ASimple structureRotatable and flexibleJointsArmsWine bottleEngineering
The invention relates to the technical field of robots, and discloses a robot arm structure. The robot arm structure comprises a shoulder, a first arm, a second arm, a third arm, a first driving mechanism, a second driving mechanism, a third driving mechanism and a fourth driving mechanism; the shoulder, the first arm, the second arm and the third arm are sequentially and rotationally connected, and the first driving mechanism, the second driving mechanism, the third driving mechanism and the fourth driving mechanism drive the shoulder, the first arm, the second arm and the third arm to rotate; and four freedom degrees are included, wherein the shoulder is used for being rotationally connected to the robot body so as to achieve front-and-back swing of the overall arm structure, the first arm can rotate around the shoulder to swing to the inner and outer sides of a robot, the second arm rotates around the first arm to achieve lifting or placing of the arm structure, and the third arm rotates around the second arm so as to enable the third arm to rotate to the left and right sides. The robot arm structure is of a four-freedom-degree structure, the structure and the wine bottle grabbing structure are installed on the robot together, a series of wine pouring work can be completed, and the wine pouring efficiency is high.
Owner:GUANGZHOU COLLEGE OF SOUTH CHINA UNIV OF TECH

Protractor capable of conveniently determining angles

The invention provides a protractor capable of conveniently determining angles. According to the protractor, the center of an upper semicircular plate of the protractor and the center of a lower semicircular plate of the protractor are movably connected together through a hinge shaft. During use, a required angle can be determined from a gap portion through the cross adjustment of the upper and lower semicircular plates; due to a protractor structure that two 180-degree structures are combined, a proper angle is easier to adjust.
Owner:BAOKANG COUNTY EXPERIMENTAL HIGH SCHOOL

A two-stage shock-absorbing ankle-foot integrated parallel low-impact walking foot mechanism and control method

InactiveCN106828657BBalance difficultyIncrease stiffnessVehiclesHydraulic cylinderAnalog robot
The invention discloses a two-stage vibration reducing ankle-foot integrated parallel low-impact walking foot mechanism and a controlling method, which can be used for effectively reducing foot-ground impact force and are capable of performing active control. The walking foot mechanism comprises a foot-leg connecting platform, a food end bottom connecting platform, three groups of moving pairs, three groups of revolute pairs and three groups of ball pairs, a lower platform simulates the foot end of a robot, the moving pairs are driving pairs, and are used for simulating legs of the robot, an anti-vibration pad, with frictional force, is inlaid in the lower surface of the food end bottom connecting platform, and is used as first-stage vibration reduction, the three groups of moving pairs are arranged in a mirror symmetry manner, and each group of moving pair comprise a hydraulic cylinder, a spring damper, a servo valve and a controller, wherein the spring damper sleeves a cylinder piston rod of the hydraulic cylinder, and is used as second-stage vibration reduction, so that the whole mechanism forms a lower-mobility parallel mechanism with a three freedom degree structure, and two rotational freedom along the directions of x and y and a translational freedom degree along the direction of z are realized. The mechanism and method provided by the invention have the advantages that the plan and control of the robot are flexible and reliable, and the stability is high.
Owner:HARBIN INST OF TECH

Paper card pothook folding mechanism used in socks packing machine

PendingCN108557185ACoordinated and reliableEasy to operatePackagingSOCKSPulp and paper industry
The invention discloses a paper card pothook folding mechanism used in a socks packing machine. The mechanism comprises a rack, a paper card conveying device, a pothook device and a paper card foldingdevice, wherein the paper card conveying device comprises a paper card conveying hole, a paper card placement pothook hole, a paper card suction translation mechanism and a paper card placement fixing device, wherein the paper card conveying hole, the paper card placement pothook hole and the paper card suction translation mechanism are arranged on a bearing surface, and the paper card placementfixing device is arranged under the paper card conveying hole; the pothook device comprises a vibrating disk, a pothook rod cooperatively connected with the vibrating disk and a pothook taking turnover structure arranged under the paper card conveying hole; and the paper card folding device comprises a paper card folding 90-degree structure and a paper card folding 180-degree structure. The papercard pothook folding mechanism used in the socks packing machine has the advantages the automatic transportation, hooking, getting hooked and paper card folding processes can be completed, the whole processes are operated conveniently and quickly and can be completed only needing a common operating worker, the cooperation among parts is coordinating and reliable, and the stability and accuracy canachieve an expected goal.
Owner:浙江和立智能科技有限公司

Anode material for non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery using such anode material

Carbon fibers whose cross-sectional shape satisfies the condition that the area filling ratio is not less than 0.8 are used as negative electrode materials for nonaqueous electrolyte storage batteries. On the other hand, since the fractal value of the cross-sectional high-order structure of random radial carbon fibers can be used as a material parameter for evaluating the cross-sectional structure, such carbon fibers are also used as negative electrode materials for non-aqueous electrolyte batteries: Wherein, the aforementioned fractal dimension value is within the range of 1.1 to 1.8, and the crystallinity is controlled within a reasonable range. Further, carbon fibers with the following cross-sectional high-order structure are also used as negative electrode materials for non-aqueous electrolyte batteries: the central part is a radial structure, and the surface part is a random radial structure. Furthermore, it is also very effective to use carbon fiber with a grooved structure on the cross section. In addition, by preparing graphitized carbon fibers having transverse sections different in crystal structure distributed at a specific period in the fiber length direction, by rolling such graphitized carbon fibers, carbon fibers with less heterogeneity and specific aspect ratios can be easily prepared powder.
Owner:SONY CORP

Communication equipment supporting multi-protocol transmission based on software definition

The invention provides a software-definition-based communication device supporting multi-protocol transmission. Network types and corresponding functions and parameters used for processing transmission protocols for all the network types are configured in advance by a configuration unit in the communication device; a signal back-end processing unit calls the functions provided by the configuration unit to package or analyze received bit signals through the transmission protocols; a signal front-end processing unit modulates and sends the bit information packaged by the signal back-end processing unit according to the network types and / or receives electromagnetic signals in corresponding networks according to the network types and modulates the electromagnetic signals into bit signals; a control unit controls the signal back-end processing unit to call the corresponding functions and controls the signal front-end processing unit to receive / send the corresponding bit signals on the basis of the network types configured by the configuration unit. The communication device is of a low-coupling-degree structure and can be not only used for processing bit signals in real time but also applied to different networks through flexible configuration.
Owner:SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI

Inlet pressurizing type two-dimensional duplex piston pump

The invention discloses an inlet pressurizing type two-dimensional duplex piston pump comprising a pump body. The pump body is provided with an oil suction opening and an oil discharge opening. A pumpunit is arranged in the pump body and comprises two cylinder blocks fixed into the pump body. The two cylinder blocks are arranged in the left-right direction. Pistons are both arranged in the two cylinder blocks, and the two pistons are in mutual linkage. The center axis of each cylinder block coincides with the center axis of the corresponding piston. The two ends of each piston are both provided with moving components, wherein the moving components drive the piston to axially move so as to cause the volume of a work cavity to change. The piston motion driving directions of the two moving components at the two ends of each piston are opposite. Each piston, the corresponding cylinder block and the moving components on the two sides of the piston constitute one half part of the duplex structure of the piston pump, the part close to a front end cover is the upper half part of the duplex structure of the piston pump, and the part close to a back end cover is the lower half part of the duplex structure of the piston pump. According to the inlet pressurizing type two-dimensional duplex piston pump, the double-freedom-degree structure of rotation and sliding of the pistons is used forreplacing an oil distributing disk structure of a traditional circumferential plunger pump, and continuous oil suction and discharge functions are achieved; besides, the duplex mode is adopted, if thepistons rotate for one circle, reciprocating motion is conducted four times, oil suction and oil discharge are each conducted eight times, and the number of times of oil suction and the number of times of oil discharge are each four larger than those of a monoblock piston pump.
Owner:ZHEJIANG UNIV OF TECH

Pulse detector with high interference resistance

The invention relates to a pulse detector with high interference resistance. The pulse detector with high interference resistance comprises two sensors in an inverted series connection mode, wherein a certain interval is maintained between the two sensors by utilizing a high-electricity and vibration insulation degree structure; the induction surface of one main sensor is provided with multiple probes which are arranged at preset intervals; the multiple probes transmit the pulse signals which are independently detected to the induction surface of the main sensor; the pulse signals received bythe induction surface of the main sensor are superposed by the signals detected by each probe; the pulse signals induced by the other auxiliary sensor in the inverted series connection mode are relatively weak because of the insulation action of the high-electricity and vibration insulation degree structure; and other interference signals induced by the two sensors with the same physical structure have the same strength and the opposite directions, thereby obtaining the pulse signals with basically counteracted interference, high signal-to-noise ratio, stability, reliability and insensitive positions after superposition. A reliable 24-hour pulse real-time monitoring system which can be actually applied in daily life can be established by utilizing the pulse detector with high interferenceresistance.
Owner:GUANGDONG TIANQI PHARMA CO LTD

Device for processing longhole

ActiveCN102101240BEasy to realize automatic expansion and contractionRetraction does not affectAutomatic control devicesFeeding apparatusEngineeringMechanical engineering
The invention discloses a device for processing a longhole. In the device, a scraper on a scraping part and a ball on a rolling part are driven by a driving part with a conical degree structure and a maintaining state of a pull rod is controlled by a feedback device, so that the structure of the device is reliable, the device is convenient to control and the processing efficiency of the processing device is high.
Owner:德州普利森机床有限公司
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