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152results about How to "Improve rotational flexibility" patented technology

Design method of topology optimization for flexible hinge

A design method of topology optimization for flexible hinge is disclosed in the invention, comprising following steps: step 1: establishing a design model of topology optimization for flexible hinge, setting an outline of flexible hinge with a typical notch as a shape of design domain and defining a rigid region (non-design domain); step 2: establishing a finite element model of topology optimization for flexible hinge; step 3: establishing a mathematical model of topology optimization problem for flexible hinge based on the finite element model; step 4: calculating a sensitivity of topology optimization problem for flexible hinge; step 5: employing an optimization algorithm to solve the topology optimization problem for flexible hinge, updating a design variable and obtaining a final topology result graph; step 6: according to the final topology result graph obtained by the topology optimization, extracting its outline and obtaining a novel flexible hinge by appropriate modification. Using the method of topology optimization, the invention designs the flexible hinge on a concept level. The novel flexible hinge can be designed with a more complex structure and more excellent performances, having a larger flexibility, a higher precision and a smaller maximum stress.
Owner:SOUTH CHINA UNIV OF TECH

Curve shaft rolling machine

InactiveCN101885131AAvoid top bendZero bending distance resultant forceRotational axisSteel ball
The invention relates to a curve shaft rolling machine belonging to the technical field of processing of shaft rolling machinery. The invention mainly solves the problems that single rolling head and rolling wheel of the traditional rolling machine only can rotate in one direction, so that in the shaft rolling and processing procedure, the rolling head and the rolling wheel are pushed and bent, the rolling quality is poor, the shaft range capable of rolling is small, and the like. The curve shaft rolling machine is mainly characterized by comprising a rotary power mechanism, a horizontal movement mechanism, a workpiece proping mechanism and a stand, wherein the rotary power mechanism comprises a power box and a chuck; the horizontal movement mechanism comprises a sliding table and a guide rail; the workpiece propping mechanism comprises a tip, a tailstock and a hand wheel; a group of rolling heads which are symmetrically distributed by a rotary shaft axis are fixed on the sliding table through a bracket, and each rolling head comprises a cylinder body, a piston, a rolling wheel, steel balls, a retaining sleeve and an oil pipe; the cylinder body is fixed on the bracket; the retaining sleeve is fixed on the piston, and the steel balls are arranged at the end part of the retaining sleeve; the rolling wheel is arranged in the retaining sleeve, and the rolling wheel is in contact with the steel balls; and the oil pipe is connected with a hydraulic station. The invention is mainly used for rolling and processing of various curve shafts.
Owner:南车襄樊机车有限公司

Wind power self-cleaning device for insulator

InactiveCN103456437AEasy to cleanNo secondary fouling pollutionCleaning using toolsInsulatorsElectric power systemWind power
The invention relates to a wind power self-cleaning device for an insulator of an electric power system. According to the structure of the wind power self-cleaning device for the insulator, a plurality of centrifugal type wind guide blades stretching out transversely towards the outer sides are fixedly connected to the outer side edge of an annular ring made of insulating materials, and the centrifugal type wind guide blades are strip sheet-shaped bodies with concave arc faces. A plurality of rolling wheel carriers are arranged on the inner side edge of the annular ring, a transversely-arranged rolling wheel is arranged on each rolling wheel carrier, and the wheel rims of the rolling wheels protrude out of the rolling wheel carriers, so that rolling friction can be formed when the rolling wheels make contact with the insulator. The wind power self-cleaning device for the insulator rotates around the umbrella skirt of the insulator by using wind power, dirt on the surface of the umbrella skirt of the insulator is scraped and removed by using dirt scraping edges on the centrifugal type wind guide blades, and thus the self-cleanness of the insulator is achieved. Therefore, regular manual cleaning work in conventional situations can be removed, the occurrence of pollution flashover accidents can also be avoided effectively, and the safety of the operation of electric transmission lines is improved.
Owner:孟繁恒

Engineering plastic spherical plain bearing sheathing material, internal sphere material and molding method thereof

The invention discloses casing material of an engineering plastic joint bearing. The casing material is characterized in that the casing material comprises polyamide 6 with weight parts of 58.2 to 66.0, glass fibers with weight parts of 28.3 to 38.8, MoS2 with weight parts of 2.4 to 4.7, dispersing agent TAT with weight parts of 0.4 to 0.6, anti-oxidant 168 with weight parts of 0.1 to 0.2 and anti-oxidant 1010 with weight parts of 0.1 to 02. The invention also discloses inner sphere material of the engineering plastic joint bearing. The inner sphere material is characterized in that the inner sphere material comprises polyamide 66 with weight parts of 92.0 to 95.5, solid lubricant with weight parts of 2.5 to 4.8, bulking agent POE-g-MAH with weight parts of 1.5 to 2.4, dispersing agent TAT with weight parts of 0.4 to 0.6 and anti-oxidant 1098 with weight parts of 0.1 to 0.2. In addition, the invention also discloses a moulding method for the engineering plastic joint bearing, firstly, the inner sphere is injected, then the inner sphere is positioned into an outer casing die as an embedding part for injecting the casing, and the engineering plastic joint bearing is positioned into a baking box for final treatment after being molded through injection. By adopting the method, the production efficiency of the technically molded single product in the prior art is enhanced from 30 min to 1 min.
Owner:NORTHWESTERN POLYTECHNICAL UNIV +1

Lifting device with dual-purpose rolling-chain wheel

The invention discloses a lifting device with a dual-purpose rolling-chain wheel. The lifting device comprises a device body, wherein the device body is mainly composed of a shell body, an operation box, a lifting boom, a telescopic boom, a fixed pulley and a hanging hook, wherein a moving element is arranged on a rotary shaft in a sleeving manner, and a connection rod is hinged at the bottom of the moving element; a slide rod is arranged at the bottom of the shell body, stabilization devices are fixedly connected to the two ends of the shell body, a cylinder is fixedly connected to the top in each stabilization device, an installation frame is connected to the bottom of each cylinder through a piston rod, a suction device is fixedly connected in each installation frame, a suction barrel is fixedly connected to the bottom of each installation frame, a rotary disc is connected to the surface of the top of the shell body through a rotary shaft, and rolling balls are fixedly connected to the bottom of the rotary disc through rolling ball shafts; and the lifting boom is fixedly connected to the surface of the rotary disc, a hydraulic cylinder is fixedly connected to the surface of the shell body, and a connection element is fixedly connected to the tail end of a telescopic rod. The device is high in stability and flexibility, and good in shock absorption effect, and facilitates people to use; and moreover, the device is capable of selecting different moving manners according to terrains during a use process, and convenient to use.
Owner:博格昇粉体技术(常州)有限公司

Slaughtering device

The invention discloses a slaughtering device which comprises a base, a driving mechanism and an imprisoning tank. The imprisoning tank comprises a first rotating table, a second rotating table, a first splint, a second splint, a top cover, a bottom plate and a neck pressure plate; the first rotating table is provided with a neck clamping mechanism and a turnover mechanism; the neck clamping mechanism comprises a neck clamping door and a neck clamping cylinder; the upper part of the neck clamping door is provided with a neck placement concave cavity and the neck placement concave cavity is in slide fit with two parallel guide rails arranged on the first rotating table; the turnover mechanism comprises a fixture and a fixture cylinder; the neck pressure plate is positioned above the first rotating table and the length direction of the neck pressure plate is vertical to the moving direction of the neck clamping door; the driving mechanism comprises a transmission shaft; both a first chain and a second chain are in transmission connection with the transmission shaft; and the transmission shaft is also sequentially connected with a speed reducer and a motor. The slaughtering device provided by the invention has a simple structure and high slaughtering efficiency; labor intensity and cost of workers can be reduced; and the slaughtering device has a high safety coefficient and long service life and is also beneficial for showing live killing and ensuring meat quality of beasts.
Owner:NANJING RESISTANCE HOP SLAUGHTER MACHINERY MFG

Pulley rotating flexibility detection device and detection method using same

The invention discloses a pulley rotating flexibility detection device and a method for detecting pulley rotating flexibility by using the pulley rotating flexibility detection device. The pulley rotating flexibility detection device comprises a base, transmission wheels, ropes, a tension detector and a power mechanism. The transmission wheels are movably connected with the base through a first rotating shaft. The ropes are sleeved on pulleys to be detected and the transmission wheels. The tension detector is fixedly connected with the ropes and is used for detecting tension values borne by the rope moving in the direction close to the pulleys to be detected and the rope moving in the direction far away from the pulleys to be detected. The power mechanism is connected with one of the transmission wheels or one of the pulleys to be detected and is used for driving the transmission wheels or the pulleys to be detected connected with the power mechanism to rotate and driving a pulley to be detected or the transmission wheels not connected with the power mechanism to rotate by aid of the rotating transmission wheels or the pulleys to be detected and the ropes. The pulley rotating flexibility detection device and the method for detecting pulley rotating flexibility by using the pulley rotating flexibility detection device solve the technical problems in the prior art that the pulley flexibility detection accuracy is low and pulleys with different flexibilities are difficult to be quantitatively distinguished.
Owner:XCMG CONSTR MACHINERY

Bidirectional fully-sealed rotary joint for fluid conveying

The invention discloses a bidirectional fully-sealed rotary joint for fluid conveying. The bidirectional fully-sealed rotary joint comprises a rotary shaft, a shell, balls in bulk, a primary seal, a compression ring, auxiliary seals and a set screw, wherein a groove is arranged in the outer circumference of the rotary shaft, one auxiliary seal is arranged in the groove, the rotary shaft and the shell are mounted concentrically, a roller way is arranged between the shell and the rotary shaft, the balls are mounted in the roller way, and the balls can be mounted and dismounted through a threaded hole and the set screw arranged on the roller way of the shell; the compression ring is arranged on the end surface of the upper part of the rotary shaft, the primary seal is arranged between the compression ring and the end surface of the upper part of the rotary shaft, and the primary seal is compressed by the primary seal; a groove is arranged in the end surface between the compression ring and the shell, and the other auxiliary seal is mounted in the groove. Therefore, the rotary joint provided by the invention has the characteristics that the structure is compact, the sealing performance is good, the service life is long, no lubrication is needed, the rotation is flexible and the like.
Owner:PLA AIR FORCE OIL MATERIAL RES INST

Anchor drilling machine provided with protection function and used for oil drilling

The invention discloses an anchor drilling machine provided with a protection function and used for oil drilling. The anchor drilling machine provided with the protection function and used for oil drilling comprises an installation top seat, auxiliary drilling rods and a main drilling rod. A sliding groove is formed in the surface of the installation top seat, an inner sliding ring is arranged onthe outer side of the middle of the installation top seat, a control motor seat is arranged at the upper end of the auxiliary drilling rod, the auxiliary drilling rods are separately positioned on theleft and right sides of a collar plate, a hydraulic cylinder is arranged above the outer side of the main drilling rod, and the main drilling rod is positioned below the collar plate. According to the anchor drilling machine provided with the protection function and used for oil drilling, the sizes of the collar plate and an outer sliding ring are matched with each other, the outer sliding ring is arranged on the outer side of the mounting top seat in a clamped mode and is attached to a cushion layer on the outer wall of the inner sliding ring, and the size of the inner sliding ring is matched with the size of the sliding groove on the installation top seat, namely, the inner sliding ring has rotating capability on the installation top seat, the outer sliding ring has rotating capabilityon the cushion layer, and the collar plate has rotating capability on the outer sliding ring, so that the collar plate has very high rotating flexibility in a layer-by-layer nesting mode.
Owner:魏武康

Thermoplastic polymer material equipment

InactiveCN109015879ASimple and convenient clamping workImprove work efficiencyMetal working apparatusEngineeringPneumatic cylinder
The invention discloses thermoplastic polymer material equipment. The equipment comprises a bottom frame and supports fixedly arranged on the left and right sides of the bottom frame in a bilaterallysymmetric manner; a turning disk is mounted between the supports on the left and right sides in a running fit manner; a manufacturing frame is fixedly arranged on the end surface of the bottom of theturning disk; pneumatic cavities are bilaterally symmetrically formed in the manufacturing frame; ejecting push plates are mounted inside the pneumatic cavities in a sliding fit manner; adjusting frames are fixedly arranged on the end surfaces of the sides, opposite to each other, of the ejecting push plates on the left and right sides; the adjusting frames extend out of the outer side end of themanufacturing frame and are connected with the manufacturing frame in a sliding fit manner; pneumatic holes are formed in the top walls of the pneumatic cavities in a communicating manner; the pneumatic holes in the left and right sides are connected with a pneumatic cylinder; the pneumatic cylinder is fixedly arranged inside the manufacturing frame; first penetrating openings are formed in an up-and-down penetrating manner in the adjusting frames extending out of the outer side end of the manufacturing frame; and spline shafts are mounted inside the first penetrating openings in a clearance fit manner.
Owner:福建泉州远方致远自动化科技有限公司

Profile steel rolling production line and production method thereof

The invention relates to a profile steel rolling production line and a production method thereof. The profile steel rolling production line comprises a heating unit, a rough rolling unit, a medium rolling unit, a fine rolling unit and a finishing unit, wherein each of the rough rolling unit and the medium rolling unit comprises a rolling mill and a driving device for driving the rolling mill to move along the axial direction of a rolling roller; the rolling rollers of the rolling mills are provided with rolling grooves with different groove holes; the fine rolling unit comprises a two-roller rolling mill or the fine rolling unit comprises a four-roller universal rolling mill, a two-roller edging mill and a four-roller universal rolling mill which are arranged in sequence; the two-roller rolling mill and the two-roller edging mill are provided with driving devices which move along the axial direction of rolling rollers I; the rolling rollers I are further provided with rolling grooves I with different groove holes. After a rolling piece is heated and is sequentially rolled by the upper and lower different rolling grooves through the corresponding rolling rollers on the rough rolling unit, the rolling piece enters the medium rolling unit to be sequentially rolled by the upper and lower different rolling grooves through the corresponding rolling rollers; finally, the rolling piece enters the fine rolling unit to be rolled to form a finished-product sectional material. According to the profile steel rolling production line and the production method thereof, the quantity of the rolling mills is reduced, the weight of a conveying roller bed is reduced, the production line is simplified and the production efficiency is improved.
Owner:CISDI ENG CO LTD

Spherical metal shell assembling method and detection tool special for implementing same

The invention relates to a spherical metal shell assembling method and a detection tool special for implementing the same. The spherical metal shell assembling method includes 1) feeding to obtain a spherical-crown shell and groups of spherical bend plates, and assembling each group of spherical bend plates end to end to surround one layer of spherical rings; 2) arranging the spherical-crown shell on a support pipe column and detecting the spherical-crown shell by the detection tool to enable the upper edges of the spherical-crown shell to be on the same plane and fixed; 3) sequentially arranging the spherical bend plates in the first group corresponding to the first layer of spherical rings at the corresponding positions arranged at the upper edges of the spherical-crown shell, detecting, adjusting and fixing by the detection tool, and finally, enabling the upper edges of the spherical bend plates to be on the same circumference line; 4) adjusting angle of a detection arm, sequentially assembling until a spherical shell not larger than a hemisphere is assembled. By detecting and adjusting while fixing and assembling, the detection tool is simple in structure and convenient to operate, roundness of the sphere and assembly accuracy and quality are guaranteed.
Owner:STATE GRID CORP OF CHINA +1

Method for preventing drop and hoisting of single hanging ring

The invention discloses a method for preventing drop and hoisting of a single hanging ring. The method comprises the steps that a, a drop preventing mechanism of a system for preventing drop and hoisting of the single hanging ring is opened and made to be in an unlocking state; b, when one of the hanging rings is mounted in the position, on one side of an elevator, of a lug hole of a lifting lug, an induction part of a drop preventing part sends a signal, after receiving the signal, a controller forbids moving of a runner wagon, the runner wagon is in a stop state, and after the hanging ring enters the lug hole, the drop preventing mechanism is in a locking state, and the hanging ring is blocked in the lug hole; and c, and the other hanging ring is mounted in the position, on the other side of the elevator, inside the lug hole of the lifting lug, the induction part of the drop preventing part sends a signal, and after receiving the signal, the controller allows the runner wagon to move. It can be effectively guaranteed that the two hanging rings both enter the lug hole, so that single hanging ring hoisting is avoided. Through the joint effect of the drop preventing mechanism and the drop preventing part, the hanging rings can be blocked firmly in the lug hole, slipping is avoided, the working stability and reliability of the elevator are improved, and the safety accident is eradicated.
Owner:CHENGDU ZHUOXIN IND

Manufacturing and processing method for spiral gear capable of axially moving

The invention provides a manufacturing and processing method for a spiral gear capable of axially moving. The manufacturing and processing method comprises the following steps: casting, roughly turning each surface, carrying out UT checking, hardening and tempering, carrying out semi-finishing on each surface, carrying out primary making-out, drawing out a central line and a bearing line of each angle, milling and boring a spiral structure on the outer surface, checking spiral surface allowance, carrying out turning, processing inner and outer circles and an axial dimension, carrying out gear hobbing, clamping a lower end surface, carrying out secondary marking-out, drawing the positions of the bearing lines and relative bearings of holes, carrying out drilling processing, drilling threaded holes in a step of an inner wall, tapping, tapping pipe threads, carrying out precision boring, carrying out finish-milling on a spiral surface, carrying out distribution drilling and removing burrs. Components processed by the method meet requirements of a blast furnace working environment, so that the components have relatively good strength and rotation flexibility, and are longer in service lives; and under the action of a drive gear, the spiral gear axially moves along a guide part, and therefore, the manufacturing and processing method is suitable for large-scale popularization.
Owner:中冶南方(武汉)重工制造有限公司
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