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139 results about "Bending force" patented technology

2 Answers. Bending force is the amount of energy it takes to compromise the item from its natural shape or condition.A bending force is a combination of tension and compression. In bending operations, bottom bending is used frequently at the bottom dead center in order to stabilize the shape.

Insertion tube and manufacturing method thereof, insertion part and endoscope

The invention discloses an insertion tube and a manufacturing method thereof, an insertion part and an endoscope, and relates to the technical field of medical instruments, the insertion tube comprises an insertion body and an elastic tube, a first reinforcing layer and a second reinforcing layer are arranged in the insertion body, the second reinforcing layer is arranged outside the first reinforcing layer in a surrounding mode, and the first reinforcing layer is provided with a concave part. The first reinforcing layer and the second reinforcing layer can form double limiting and wrapping supporting on the elastic pipe, the concave shape of the concave part of the first reinforcing layer is utilized to be attached to the outer wall outline of the elastic pipe, and the outer side of the second reinforcing layer is matched for enclosing and restraining, so that the installation stability of the elastic pipe in the first channel can be greatly improved; bending moment generated by self-gravity, external force and the like of the elastic tube is effectively counteracted, the elastic tube is prevented from being bent under the action of self-gravity, external force and the like, the whole insertion tube is prevented from deforming along with bending of the elastic tube, and the form stability of the insertion tube in the cavity in the propelling process is guaranteed. And the straightness of a traction rope transmission path and the accurate conduction of a control instruction are ensured.
Owner:HUNAN VATHIN MEDICAL INSTR CO LTD

Critical parameter prediction method for vertical cantilever fluid conveying pipe comprising water injection pump and Y-shaped nozzle

The invention discloses a critical parameter prediction method for a vertical cantilever fluid conveying pipe comprising a water injection pump and a Y-shaped nozzle, and relates to the field of fluid conveying pipe critical parameter calculation. The prediction method is based on an Euler-Bernoulli beam model and a momentum theorem, bending force, centrifugal force, Coriolis force, inertia force, gravity and additional force generated by an elbow are comprehensively considered, and an oscillatory differential equation of the fluid conveying pipe is established. The method comprises the following steps: performing dimensionless processing on an oscillatory differential equation by introducing dimensionless parameters, deducing a characteristic equation, a characteristic function and a characteristic value under a cantilever boundary condition, converting a partial differential equation into an ordinary differential equation set, and performing matrix solution; and finally, accurate prediction values of the critical flow velocity and the critical frequency can be obtained. The method can effectively reflect the influence rule of the nozzle and the concentrated mass on the vibration characteristics of the fluid conveying pipe, and realizes the accurate prediction of the critical parameters of the vertical cantilever containing the concentrated mass belt Y-shaped nozzle fluid conveying pipe.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Anti-torsion measuring equipment for multi-directional stress of sectional material

The invention discloses anti-torsion measuring equipment for multi-directional stress of a sectional material. The anti-torsion measuring equipment comprises the sectional material and measuring equipment for applying torsion to the sectional material, the measuring device comprises: a support frame; the movable plate is mounted on the supporting frame, and a lifting mechanism is arranged between the movable plate and the supporting frame; the torque applying system is arranged on the moving plate, comprises a motor, a belt pulley transmission structure, a speed reducer, a coupler, a rotating shaft, a universal joint I and a three-jaw chuck I, and is used for applying torque to the top end of the profile; the invention belongs to the technical field of profile detection, aims to solve the problem that only pure torque or single-direction bending force can be tested in the prior art, and achieves the technical effect that composite loading of profile axial torque and spatial omnidirectional lateral force is realized through circumferential rotation driven by a planetary gear and pitching adjustment of an arc-shaped rod-sliding block.
Owner:SHANGHAI TONGJI CONSTR QUALITY INSPECTION STATION

Metal part physical property detection device

The invention discloses a metal part physical performance detection device, and relates to the technical field of metal part detection, the metal part physical performance detection device comprises a workbench, the top surface of the workbench is slidably provided with two groups of moving assemblies, the opposite surfaces of the moving assemblies are fixedly provided with a group of bending assemblies, and the two groups of bending assemblies are internally slidably provided with a group of clamping assemblies; the two bending assemblies are jointly provided with a hydraulic assembly and a liquid guide assembly, a transfer assembly is installed on the top face of the workbench, a detection assembly is fixedly installed at the rear end of the transfer assembly, and a fixed point assembly is fixedly installed at the front end of the transfer assembly. According to the device, hydraulic oil can be cyclically switched among different cavities, so that the clamping assembly is driven to move up and down along the arc-shaped guide rail, the strip-shaped metal part is subjected to controllable bending force, meanwhile, the bending test point can be flexibly adjusted through cooperation of the movable support and the fixed-point support, and diversity and adaptability of experimental working conditions are ensured.
Owner:SHANDONG BAOTAIXIN METAL TECHNOLOGY CO LTD

Endoscope needle tube puncturing and suturing device

ActiveCN224140859USmall impact on puncture forceenough puncture forceSuture equipmentsInternal osteosythesisHuman bodyNeedle puncture
The utility model provides an endoscope needle tube puncturing and suturing device. The endoscope needle tube puncturing and suturing device comprises a mounting shell, a needle tube assembly, a driving assembly and a suturing assembly. The control piece controls the driving piece to rotate relative to the mounting shell, and the driving piece drives the connecting piece to move relative to the mounting shell, so that the connecting piece drives the arc-shaped puncture needle tube to rotate relative to the mounting shell. The control piece directly drives the arc-shaped puncture needle tube to be opposite to the mounting shell through matching of the driving piece and the connecting piece. The influence of the length of the needle tube assembly and the elastic tube, the stress bending of the elastic tube and the friction between the needle tube assembly and the mounting shell on the puncture force borne by the arc-shaped puncture needle tube is small, that is, the acting force of the control piece is effectively converted into the puncture force of the arc-shaped puncture needle tube through the matching of the driving piece and the connecting piece; and the arc-shaped puncture needle tube has enough puncture force, so that the arc-shaped puncture needle tube can quickly penetrate through human tissues, and the suture efficiency and implementation reliability of the product are improved.
Owner:张强

Adjustable pipe bending equipment

The invention belongs to the technical field of pipe bending machines, and particularly relates to adjustable pipe bending equipment which comprises an equipment platform. The clamping mechanism is used for clamping and fixing the steel pipe above the equipment platform, so that subsequent pipe bending operation is facilitated; the position adjusting mechanism is used for adjusting the pipe bending position of the steel pipe and comprises a sliding seat which is slidably connected to the upper end of the equipment platform in the horizontal direction, an adjusting lead screw is rotationally connected to the equipment platform, and the sliding seat is in threaded connection with the adjusting lead screw; the upper end of the equipment platform is fixedly connected with a first adjusting motor used for driving the adjusting lead screw. And the angle adjusting mechanism is used for adjusting the pipe bending angle of the steel pipe. According to the multi-stage pipe bending machine, the multi-stage pipe bending mechanism is arranged, bending force is applied to a steel pipe in a segmented mode through linkage of a hydraulic system, a gear and a rack, the circulation mode of bending, feeding and re-bending is achieved, and concentrated stress is dispersed to multiple stages.
Owner:WANWEI SEMICONDUCTOR TECHNOLOGY (SHANDONG) CO LTD

Method for improving same-plate difference of non-oriented silicon steel through multi-process coordinated regulation and control

The invention discloses a method for improving the same-plate difference of non-oriented silicon steel through multi-process coordinated regulation and control. The method comprises the following steps: cooperatively controlling the following key process parameters: 1) hot continuous rolling process control: plate shape target control; width control; configuring and grinding a roller; a roller changing period; (2) five-rack acid continuous rolling procedure control: roller configuration; grinding the roller; and roll bending force control is conducted, specifically, the roll bending force of working rolls of all the racks is set to be 320 + / -20 kN for the rack S1, 330 + / -20 kN for the rack S2, 330 + / -20 kN for the rack S3, 330 + / -20 kN for the rack S4 and 330 + / -20 kN for the rack S5, an automatic mode is adopted, and dynamic adjustment is conducted according to feedback of a real-time strip shape instrument. According to the method, key process parameters in the whole hot rolling and cold rolling process are accurately controlled, the synergistic effect is formed, the transverse thickness uniformity of the strip steel is fundamentally improved, and therefore the high-quality non-oriented silicon steel product with the extremely small same-plate difference is obtained.
Owner:BEIJING BAOGANG STEEL TECHNOLOGY CO LTD

High-stability weighing sensor based on adaptive structure adjustment

PendingCN121804625ASolve the problem of bearing unbalanced loadOffset installation errorsWeighing apparatus using elastically-deformable membersUniversal jointBending force
The invention discloses a high-stability weighing sensor based on self-adaptive structure adjustment, relates to the technical field of weighing sensors, and aims to solve the technical problem that the sensor bears unbalance loading force due to the fact that the placement position of an object is deviated, and the high-stability weighing sensor comprises a fixed base and a resistance strain type weighing sensor fixedly installed at the top of the fixed base. An adjusting mechanism is arranged at the top of the fixed base, and a stabilizing mechanism is arranged at the top of the adjusting mechanism. According to the invention, the floating seat is connected with the bearing seat through the spherical universal joint, and when a weighing object is placed at the edge of the bearing seat and causes unbalance loading, the spherical universal joint can actively adjust the posture of the bearing seat through inclination, and the L-shaped elastic arm at the unbalance loading side is matched to generate tiny bending due to increased stress; in the force transmission process, the first arc thin connection section can deform through self elasticity, interference of transverse component force on the main elastic body is eliminated, and the problem that the sensor bears unbalance loading force due to the fact that the placing position of an object is deviated is solved.
Owner:ANHUI ZHIMIN ELECTRIC TECH CO LTD

Stamping integrated equipment and method of energy storage steel row

The present application relates to the field of stamping equipment, especially to a kind of stamping integrated equipment and method of energy storage steel row, including rack, the top of the rack is fixedly connected with workbench, the top of the workbench is installed with bottom plate, the top of the bottom plate is installed with lower die plate, the rear side of the workbench is installed with fixed frame, the front end of the fixed frame is fixedly connected with hydraulic cylinder in upper portion, the bottom of the hydraulic cylinder is fixedly connected with mounting plate in telescopic end, the bottom of the mounting plate is installed with upper die plate by bolt, the bottom of the upper die plate is all penetrated and slidably connected with guide pillar, the bottom end of the guide pillar is all fixedly connected with middle pressure plate, ultrasonic vibration head is arranged in bending stage, and high-frequency vibration is transmitted to bending plate by vibration piece and hydraulic medium, high-frequency dynamic stress disturbance is applied to material while the mechanical bending force acts, can promote material internal dislocation movement and plastic flow, reduce local deformation resistance, to effectively reduce bending forming force.
Owner:FUJIAN SHENGKAILUN NEW ENERGY TECH CO LTD

Vehicle frame and corresponding joint structure

A joint structure for a vehicle frame includes a first structural tube, a second structural tube, and a pin. The first structural tube has first and second panels opposing each other. The first structural tube has third and fourth panels opposing each other. The second structural tube extends through the first panel and the second panel. The second structural tube has fifth and six panels opposing each other. The pin is secured to the first structural tube. The pin extends through the third panel, to the fifth panel, through the fifth panel, to the sixth panel, through the sixth panel, to the fourth panel, and through the fourth panel such that the first structural tube, second structural tube, and pin are collectively operable to resist shear and bending forces between the first structural tube and the second structural tube.
Owner:FORD GLOBAL TECH LLC

Mechanical support for a tall offset die stack

A semiconductor device including one or more support structures for supporting a semiconductor-die stack having a region that overhangs a substrate. In an example embodiment, the support structures may be implemented using suitably shaped pieces of relatively thick round or ribbon wire attached to metal pads on the substrate. During the encapsulation operation, the one or more support structures may counteract a bending force applied to the semiconductor-die stack by a flow of the molding compound. At least some embodiments may beneficially be used, e.g., to enable high-yield fabrication of devices having sixteen or more stacked memory dies.
Owner:SANDISK TECHNOLOGIES LLC

Raw material cutting device for color stone metal tile production

The invention discloses a raw material cutting device for colored stone metal tile production, and relates to the technical field of colored stone metal tiles. The raw material cutting device comprises a rack, a sliding frame is slidably connected to the rack, a hydraulic rod and a cutting knife are arranged on the rack, and the cutting knife is rotatably connected to the side, close to the hydraulic rod, of the rack through a rotating shaft; the end of a piston rod of the hydraulic rod is rotationally connected with the cutting knife, and a downward pressing assembly for applying downward bending force to the cut and separated part is arranged on the rack. Firstly, stable clamping is achieved through cooperation of the lifting frame and the sliding block, material displacement in the shearing process is avoided, and the cutting quality is ensured; secondly, the peak pressure of a hydraulic system is effectively reduced through a continuous sectional shearing mode, and the service life of equipment is prolonged; and moreover, the polishing plate removes burrs while cutting, so that the problems of edge warping and coating stripping in the traditional process are solved, the surface quality of the product is improved, and the cutting precision and efficiency of the colored stone metal tile are also remarkably improved.
Owner:TEXAS OWENS NEW BUILDING MATERIALS CO LTD

Force control bending and pressing method and device for sensor probe and production line

The invention relates to the technical field of medical instruments, and particularly discloses a force control bending and pressing method and device for a sensor probe and a production line. The method comprises the steps that the probe is inserted into an assembly hole of a sensor shell; a bending actuator is driven to apply bending force to the probe part protruding out of the assembly hole, and a first pressure value in the bending process is collected in real time; when the first pressure value reaches a preset first pressure threshold value, the bending actuator is controlled to stop; a pressing actuator is driven to apply pressing force to the probe part, and a second pressure value in the pressing process is collected in real time; when the second pressure value reaches a preset second pressure threshold value, the pressing actuator is controlled to stop, bending and pressing of the probe are completed, the bending and pressing method is matched with the corresponding bending and pressing device, the automatic bending, pressing and assembling process of the continuous blood glucose monitoring sensor probe is achieved, and the production yield and production efficiency of flexible sensors are improved.
Owner:JIANGXI SITOMAI MEDICAL TECH CO LTD

Robotic device and method for gathering soil data along pipelines using smart sensors

An apparatus for gathering soil data along a trajectory comprises a crawler body that houses a processor that is configured with instructions for controlling the apparatus, memory coupled to the processor, and a GPS module and motor also coupled to the processor. The apparatus also includes a pair of continuous tracks coupled to the crawler body and rotatable through a coupling with the motor, wherein the continuous tracks include planar sections, one or more of the planar sections including a plurality of flexible smart sensors that are each configured to detect and store data concerning at least one property or condition of the soil when the apparatus moves over the soil along the trajectory. The flexible smart sensors are resilient when subjected to bending forces when the continuous tracks move along the soil.
Owner:SAUDI ARABIAN OIL CO

Bending-resistant structure of plywood

The utility model relates to the technical field of plywood production, and discloses a plywood anti-bending structure which comprises a core plate, two arched plates are connected to the two sides of the interior of the core plate in a glued mode, connecting plates are connected to the bottom of the core plate in a glued mode, and steel carbon fiber plate layers are connected to the tops of the connecting plates in a glued mode. The top of the steel carbon fiber plate layer is connected with a thin plate in a gluing mode. According to the plywood anti-bending structure, the two arch-shaped plates are installed on the two sides of the interior of the core plate, the bending resistance can be improved through the special shapes of the arch-shaped plates, certain buffering force can be provided for the plywood when the plywood is subjected to bending force, the surface of the core plate is not prone to being directly stressed, and the service life of the plywood is prolonged. The outside protection is firmer through the thin plates and the connecting plates, and the surfaces of the rivets penetrate through the whole plywood in the circular grooves, so that when the whole plywood is subjected to external force, the situation that the plywood is separated due to the fact that the plywood is bonded through glue is avoided, and the anti-distortion capacity is reduced.
Owner:JIANGSU HAOLIN WOOD CO LTD

A detection instrument for measuring the bending force of a large-scale litz wire and a detection method thereof

The application relates to a detection instrument for measuring the bending force of a large-size Litz wire and a detection method thereof, and belongs to the technical field of Litz wire detection. The detection instrument comprises a detection table, an automatic wire feeding device for driving the Litz wire to feed along the x-axis direction, a center shaft assembly arranged on the detection table and used for fixing the bending center position of the sample wire, a fixed clamping assembly arranged on one side of the center shaft assembly, a bending assembly arranged on the other side of the center shaft assembly, a wire cutting device arranged between the fixed clamping assembly and the center shaft assembly and used for cutting the Litz wire into a plurality of sample wires, a force detection device used for detecting the stress data of the sample wire in the bending process in real time, and a control processing system in signal connection with the bending assembly and the force detection device. The application replaces the traditional visual inspection or hand feeling test by accurately quantifying the soft bending force of the Litz wire, improves the reliability and stability of the detection, and improves the automation degree of the detection and reduces the labor intensity.
Owner:TONGLING JINGDA SPECIAL MAGNET WIRE CO LTD +1

Restraint glove

The utility model relates to a pair of restraining gloves, belongs to the technical field of medical instruments, and solves the problem of unsmooth blood circulation caused by the fact that the hands of a patient are not easy to move due to the restraining gloves in the prior art. The device comprises an auxiliary movement mechanism used for finger movement, the auxiliary movement mechanism comprises an arc-shaped elastic metal sheet and a bending control assembly, and the bending control assembly is used for controlling bending or unbending of the arc-shaped elastic metal sheet; the bending control assembly comprises a flexible inserting sleeve and a rigid inserting strip, the flexible inserting sleeve is arranged on one side of the arc-shaped elastic metal sheet, the rigid inserting strip can be inserted into the flexible inserting sleeve to straighten the arc-shaped elastic metal sheet, the arc-shaped elastic metal sheet comprises a fixed section and a movable section, and after the rigid inserting strip is pulled out of the flexible inserting sleeve, the movable section can be bent towards the palm center. After the rigid insertion strip is drawn out of the flexible insertion sleeve, the movable section loses constraint, fingers of a patient are pushed to bend under the action of bending force of the movable section, and hand movement of the patient can be assisted without taking down the constraint glove.
Owner:PEKING UNIVERSITY THIRD HOSPITAL (THE THIRD CLINICAL MEDICAL SCHOOL OF PEKING UNIVERSITY)

Small wide-angle imaging optical system and camera device

The utility model discloses a small wide-angle imaging optical system and a camera device, the small wide-angle imaging optical system sequentially comprises a first lens, a second lens, a diaphragm, a third lens and a fourth lens from an object side to an image side along an optical axis; the first lens has negative bending force and is provided with a first object side surface and a first image side surface; the second lens has positive bending force and is provided with a second object side surface and a second image side surface; the third lens has negative bending force, the third lens is provided with a third object side surface and a third image side surface, the third object side surface is a convex surface, and the third image side surface is a concave surface; the fourth lens has positive bending force and is provided with a fourth object side surface and a fourth image side surface; the diaphragm is arranged between the second lens and the third lens; the central thickness D1 of the first lens and the central thickness D3 of the second lens meet the conditional expression: 1.5 lt; d3 / D1lt; and 5.5 parts by weight.
Owner:DONG GUAN GAO WEI GUANG XUE DIAN ZI YOU XIAN GONG SI

Reusable concrete point foundation with integrated reinforcement, fixing flange and embedded metal pipes for multiple uses in temporary or permanent structures.

Reusable, essentially pyramid-shaped concrete point foundation, characterized by an integrated reinforcement to absorb tensile, compressive and bending forces, a mounting flange located at the upper end and embedded in the concrete for receiving superstructures, as well as two or more metal pipes passing through the foundation, wherein the metal pipes are connected to the reinforcement and completely surrounded by concrete, and the foundation is designed so that it can be lifted, transported and reused after use.
Owner:BROSA MARLON

Method for controlling head edge wave of wide thin steel sheet

This invention discloses a method for controlling the edge waviness problem at the head of wide, thin steel plates, relating to the field of steel plate processing quality control technology. The specific steps include obtaining a preset value Fb for the bending roll force. 预 Determine Fb 预 Rolling length L acting on the head of the steel plate 头 Before the steel plate is bitten in during the finishing rolling stage, follow Fb 预 A bending force is applied to create a negative convexity in the transverse loaded roll gap of the rolls; rolling begins when the head of the steel plate bites in, continuing until the rolling length reaches L. 头 Then, restore the bending roll force to its initial value and continue subsequent steel plate rolling. Using the method of this invention, the problem of edge waviness at the head of wide, thin steel plates can be effectively controlled, enabling the straightness of the steel plate head to reach 1.2mm / 1000mm.
Owner:WUHAN IRON & STEEL GRP ECHENG IRON & STEEL CO LTD

Roll bending system of rolling mill

The invention relates to a roll bending system of a rolling mill. The roll bending system comprises a rolling mill rack, a working roll set, an upper roll bending assembly, a lower roll bending assembly and an axial locking mechanism. The upper roll bending assembly comprises an upper roll bending cylinder and an upper roll bending arm, the upper roll bending cylinder is installed on the rolling mill rack, the upper roll bending cylinder is connected with the upper roll bending arm to drive the upper roll bending arm to move up and down, and the upper roll bending arm is connected with the corresponding working roll to apply roll bending force; the lower roll bending assembly is installed on the rolling mill rack and connected with the corresponding working roll so as to apply roll bending force. And the axial locking mechanism is switched between a locking state and a releasing state. In a locking state, the locking device is jointed with a bearing seat sleeve piece of the working roller; and in the release state, the bearing seat sleeve piece is separated from the bearing seat sleeve piece so as to release the axial constraint on the working roller. According to the roll bending system, the upper roll bending assembly, the lower roll bending assembly and the axial locking mechanism are reasonably arranged on the rolling mill rack, the roll shifting function is achieved, large-opening-degree adjustment is achieved through the upper roll bending assembly, and therefore the roll bending system meets the requirements of a large-opening rolling mill and roll shifting adjustment.
Owner:DALIAN DESIGN INST CO LTD CHINA FIRST HEAVY IND +1

Guzheng soundboard bending and shaping die device

The utility model discloses a Chinese zither soundboard bending and shaping die device which comprises a bending die and a shaping structure. The bending die is composed of an upper die and a lower die, a cavity matched with the bent shape of the zither soundboard is formed between the upper die and the lower die, and the bending die is used for applying uniform bending force to the heated and softened zither soundboard to form the needed bent shape. The shaping structure comprises tensioning belts and a pressing device, the tensioning belts are arranged on the two sides of the bent zither soundboard, the pressing device presses the tensioning belts, and the bent shape of the soundboard is kept. According to the device, the heating, bending and shaping processes are accurately controlled, the machining precision and efficiency are remarkably improved, and the consistency of the sound quality effect of the soundboard is ensured. Besides, the device has the advantages of being high in adaptability, easy to maintain and upgrade, environment-friendly, energy-saving and the like, can be adjusted according to the shape, size and material of the zither soundboard, and meets the processing requirements of different types and specifications of soundboards.
Owner:NORTHWEST A & F UNIV

A method for testing the strength of engineering plastics

PendingCN122282516Ano lossno contactAnomaly detectionEngineering plastic
This invention discloses a method for testing the strength of engineering plastics. It addresses the problem of over-reliance on operator subjective experience and inconsistent judgment standards in determining the ultimate force of engineering plastics. This invention quantifies the difference between bending force and inversion stress, sets a standardized error threshold, and accurately determines whether the two sets of force values ​​exhibit an arithmetic progression. This objectively distinguishes between valid and abnormal detections from a data perspective. For abnormal detections, a retest signal can be directly generated to quickly locate problems such as loose clamping or excessive force loss, reducing invalid detections. For normal test data, a progressive logic of difference range prediction and inversion stress range verification accurately pinpoints the ultimate force of the engineering plastic, clearly distinguishing between the normal buffer deformation stage, the stage of buffer elasticity depletion and synchronous change, and the critical fracture large bending stage.
Owner:YANGZHOU DASONG NEW MATERIALS CO LTD

Water vending machine water fetching bin door with primary and secondary hinges

The utility model relates to the technical field of water vending machines, in particular to a water fetching bin door with a primary-secondary hinge for a water vending machine, which comprises a water fetching bin door mounted on a bin door frame of the water vending machine, and a square door frame of the water fetching bin door and the bin door frame are hinged through the primary-secondary hinge and fastened by screws. The child-mother type hinge comprises a U-shaped mother hinge frame and a square child hinge, and the U-shaped mother hinge frame and the square child hinge are hinged through a rotating shaft rod; a water fetching bin door is hinged to a bin door frame on the water vending machine through a primary-secondary hinge; a water fetching bin door is hinged to a bin door frame on the water vending machine through a primary-secondary hinge; the square secondary hinge and the U-shaped primary hinge of the primary-secondary type hinge can be rotated by 180 degrees to be opened, the door cannot apply bending force to the door frame, the door frame and the door are better matched, deformation is not prone to occurring, the door opening angle is larger, and a water bucket can be conveniently placed and taken.
Owner:杨勇

Mechanical finger and robot hand

The present application relates to a kind of mechanical fingers, comprising: at least three sequentially rotating connected knuckles, in the case where adjacent knuckles are parallel to each other, the mechanical finger is first state, in the case where adjacent knuckles are perpendicular to each other, and the two knuckles of interval one knuckle are parallel to each other, the mechanical finger is second state;When the mechanical finger moves from straight state to fully curved state, first knuckle is first applied to the mechanical finger inward bending force direction, in the process of bending movement of first knuckle, the friction between first knuckle and second knuckle gradually increases, when the friction gradually increases, first knuckle drives second knuckle to bend and move together, in the process of bending movement of second knuckle, the friction between second knuckle and third knuckle gradually increases, at this time, first knuckle and second knuckle move at approximate rate simultaneously.
Owner:NORTHEASTERN UNIV CHINA

Control method for a cold rolling mill

The application relates to the field of steel rolling technology and discloses a control method of a cold rolling mill. The method comprises the following steps: collecting rolling force and bending force of each rack in the cold rolling mill at a first set rolling speed, and a position difference of a pressing cylinder between a working side and a driving side of each rack as rolling force setting, bending force setting and leveling setting of the corresponding rack when the cold rolling mill starts; obtaining actual tension between adjacent racks in the cold rolling mill; if the actual tension between the adjacent racks is equal to zero, building tension for the racks between the out-of-tension rack and the last rack; if the actual tension between the adjacent racks is greater than zero, or after building tension for the racks between the out-of-tension rack and the last rack, adjusting the rolling force, the bending force and the position difference of the pressing cylinder of each rack to the given data; and controlling the cold rolling mill to start according to a starting threading speed. The technical scheme can improve the production stability and manufacturing capacity of the cold continuous rolling mill.
Owner:SHOUGANG ZHIXIN QIAN AN ELECTROMAGNETIC MATERIALS CO LTD

Method for predicting stability parameters of multi-suspended-span elastic bearing fluid conveying pipe

ActiveCN121981018ADesign optimisation/simulationStability parameterMatrix solution
The invention discloses a multi-suspended-span elastic bearing fluid conveying pipe stability parameter prediction method, and relates to the technical field of fluid conveying pipe vibration characteristic analysis. A multi-suspended-span pipeline is divided into a plurality of independent pipe sections at the supporting position, vibration control equations for describing all the suspended-span pipelines are established respectively, and the vibration control equations only consider the coupling effect of bending force, centrifugal force, gravity, Coriolis force and inertia force of the pipeline and do not contain any middle supporting constraint term; the intermediate support constraint is completely written into the cross-coupling boundary condition, so that the defects that the traditional Dirac function method is fuzzy in significance and the numerical calculation is difficult to converge are avoided; carrying out dimensionless processing on an oscillatory differential equation by introducing a dimensionless parameter, deducing to obtain a characteristic equation, a characteristic function and a characteristic value under the complex boundary condition by combining the end elastic boundary and the cross coupling constraint, converting a partial differential equation into an ordinary differential equation set, and carrying out matrix solution, so as to obtain an oscillatory differential equation set; and finally, an accurate prediction value of the inherent frequency can be obtained.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Aluminum profile slitting device

PendingCN122352965ACamBending force
This invention relates to the field of aluminum profile slitting technology, specifically disclosing an aluminum profile slitting device. It includes a base plate, a fixing frame, a housing, and a cutting blade. A centering clamping assembly is located above the base plate, comprising four cams and a clamping rotation assembly. The cams press against the side of the I-shaped aluminum profile and can rotate to abut the upper end of its side recess. A synchronous approaching assembly is located on the base plate, driving the four cams to synchronously approach in pairs and connect to the housing. The base plate has a through groove, with an arc-shaped plate slidably connected to the groove wall. A moving assembly is located below the base plate, driving the arc-shaped plate to move up and down. The cams of this invention can rotate outwards to generate an outward bending force around the cutting point, supporting the area around the cutting point to reduce the recess and ensure a flat cutting surface. The clamping springs enable adaptive clamping of aluminum profiles of different widths, while the arc-shaped plate shields the cutting area to prevent flame damage, improving cutting quality and operational safety.
Owner:SHANDONG SHENGYE NEW ENERGY CO LTD