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21 results about "Corner angle" patented technology
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Corner | angle |. is that corner is the point where two converging lines meet; an angle, either external or internal while angle is (senseid)(geometry) a figure formed by two rays which start from a common point (a plane angle) or by three planes that intersect (a solid angle).
A method for calculating the out-of-plane bearing capacity of intersecting unequal angle steel members
ActiveCN115422730BDesign optimisation/simulationSpecial data processing applicationsClassical mechanicsBar pressing
This invention provides a method for calculating the out-of-plane bearing capacity of unequal-sided angle steel cross-bracing members. An external load is applied to the angle steel, and the resulting compression member is discretized into several micro-segments. The curvature of each micro-segment is calculated, and the internal forces of the micro-segment sections are further calculated. This calculation is iteratively performed until the internal forces and the applied external load satisfy the convergence tolerance. Based on the external load and the matching micro-segment curvature, element stress, and micro-segment section internal forces, the bending moment of the section is obtained by integration. The length and rotation of each micro-segment are then calculated using the moment increment formula and the micro-segment rotation formula, respectively. This iterative calculation continues until the micro-segment rotation is zero. The lengths of each micro-segment are then summed to obtain the member length corresponding to the given external load. This method employs a reverse calculation approach, determining the corresponding bending moment based on the member's buckling shape, and then obtaining the member length, thus filling the gap in the calculation of the out-of-plane bearing capacity of unequal-sided angle steel.
Owner:NORTH CHINA POWER ENG
An improved method of considering lateral and angular stiffness of a spline coupling with parallel misalignment
The application aims to provide an improved method for considering the lateral stiffness and the corner stiffness of the spline coupling with misalignment, comprising the following steps: establishing a schematic diagram of the load and deformation of the misaligned spline coupling, deducing the load and deformation balance equation of the misaligned spline engagement state according to the deformation geometry of the misaligned spline; deducing the single-tooth engagement stiffness according to the energy method, correcting the gear tooth engagement stiffness; bringing the single-tooth engagement stiffness of the spline obtained in step (2) into the engagement force balance equation obtained in step (1), and calculating the lateral stiffness and the corner stiffness of the misaligned spline coupling. Through comparison with the finite element results, the calculation results of the application are more efficient, and the vacancy of the calculation method of the lateral stiffness and the corner stiffness of the spline coupling under the misalignment condition at the present stage is made up.
Owner:CHINA SHIPBUILDING IND CORP NO 703 INST
Corner piece body
1. The name of the product of this design: the main body of the corner piece. 2. Purpose of the product of this design: The purpose of the overall product is to be used for connection at the corner position of the suspension frame, and the local use for which protection is required is the main body of the corner piece. 3. The key point of the design of this product lies in the shape of the solid line part. 4. The picture or photo that best illustrates the key points of the design: 3D drawing of Design 1. 5. Designate Design 1 as the base design. 6. Other situations that need explanation: The portion indicated by the dotted line is the portion for which protection is not requested, and the dot-dash line only indicates the boundary between the portion for which protection is requested and the portion for which protection is not requested.
Owner:KAWAJUN KK
Multi-angle entering three-dimensional vector guidance method meeting position constraint
ActiveCN121143446AVehicle position/course/altitude controlPosition/direction controlAlgorithmEngineering
The invention relates to a multi-angle entering three-dimensional vector guidance method meeting position constraint, and belongs to the technical field of guidance. Compared with a traditional method, advanced alignment of the entry angle is achieved under the given position constraint condition, meanwhile, the space plane constraint and the constraint of the tail section attack vector direction are considered, the space vector guidance method is adopted, the minimum rotation angle and the corresponding space rotation axis can be calculated, and therefore guidance law design is completed. According to the method, the optimal rotation vector and the minimum rotation angle of the space can be calculated, the singular problem of a large-angle Euler angle universal lock in a traditional guidance method is avoided, and striking under the constraint of the terminal angle is achieved on the premise that the constraint condition of the space position plane where the entering angle is located is met. According to the method, the conditions such as the optimal space rotation axis, the minimum space rotation angle, the space plane constraint and the tail end entering vector direction constraint are considered, so that the method has universality, multiple application scenes, wide application range, excellent performance and high engineering practice ability.
Owner:XIAN MODERN CONTROL TECH RES INST
Vibration reduction and gradient adjustment support, stepless adjustment method for gradient of support and reset method for corner of support
PendingCN121675305ABridge structural detailsBridge erection/assemblyControl theoryMechanical engineering
The invention relates to the technical field of bridge supports, and aims to solve the problems that the gradient of an existing bridge support cannot be adjusted, the support cannot be normally mounted when a deviation exists between the preset gradient of the support and the line gradient, the normal rotation requirement of the support cannot be met after the mounting deviation of the support exceeds a standard limit value or the rotation angle of the support exceeds a limit, the support cannot normally work, and the support cannot work normally. In order to solve the problems in the prior art, the invention provides the vibration-reduction slope-adjustment support, the stepless adjustment method for the slope of the support and the resetting method for the corner of the support. The vibration reduction slope adjusting support comprises an upper support plate, a rotating plate, a middle plate, a slope adjusting plate and a bottom plate. The upper support plate and the rotating plate form a sliding pair, and the rotating plate and the middle plate form a rotating pair; the top surface of the slope adjusting plate is in sliding fit with the plane of the middle plate; the bottom surface of the slope adjusting plate is in spherical surface rotating fit or cylindrical surface rotating fit with the bottom plate; according to the invention, stepless adjustment of the slope of the support can be realized, the support adapts to the slope of a line, and the requirement of normal rotation of the support is met.
Owner:CHENGDU XINTU TECH
Intelligent detection method, system and device for installation angle of corner pole cross arm and medium
The application discloses a kind of corner pole cross arm installation angle intelligent detection method, system, equipment and medium, the method is by constructing the outline point set corresponding to strain clamp rectangular frame of each strain clamp;First line coordinate point set is constructed, second line coordinate point set is constructed;According to first line coordinate point set, second line coordinate point set and strain clamp rectangular frame, at least one first target line straight line and second target line straight line are screened out;The first included angle of first target line straight line and X axis positive direction is calculated, the second included angle of second target line straight line and X axis positive direction is calculated;The third included angle of cross arm central axis direction and X axis positive direction is calculated;First included angle and second included angle are respectively with third included angle difference value calculation is carried out, obtains two difference value calculation results, according to two difference value calculation results, the intelligent detection of corner pole cross arm installation angle is carried out.This application can improve the intelligent detection accuracy and detection efficiency of corner pole cross arm installation angle.
Owner:HUNAN SUKE INTELLIGENT TECH CO LTD
Corner positioning structure based on elastic strip and gear
The utility model discloses a corner positioning structure based on an elastic strip and a gear, which comprises an adjusting fluted disc and a fixing piece which are arranged on a bottom plate, the fixing piece is connected with an axis piece, the axis piece is connected with a rotating piece, and the rotating piece can rotate relative to the fixing piece; a plurality of convex teeth are arranged on the adjusting fluted disc, the convex teeth are arranged in an arc line shape with the rotating center of the rotating part as the circle center, and a groove is formed between every two adjacent convex teeth; an elastic strip is arranged on the rotating piece, the elastic strip can be clamped into the corresponding groove after the rotating angle of the rotating piece is adjusted, and the pressure value of the groove to the elastic strip is F and Fgt; 0. According to the corner positioning structure, the elastic strip and the adjusting fluted disc are arranged and matched with each other, so that the purposes of improving the stability of the corner structure and reducing the control difficulty of a supporting angle can be achieved.
Owner:SICHUAN FINGER PEN TECHNOLOGY CO LTD
A method for achieving vertical rotation of the rotation axis under limited rotation angle conditions
ActiveCN118816836Bsimple methodNavigation by speed/acceleration measurementsPlumb lines for surveyingAcute angleInertial platform
The present invention provides a method for realizing the vertical position of the rotary axis under limited rotation angle conditions, belonging to the field of rotary axis assembly measurement technology. When the inner frame of the inertial platform swings within the acute angle range due to the limit, the sensitive direction of the level meter and the inner frame are pointed to the +X axis direction; the inner frame is rotated, the level meter points to the +X axis +N° and -N° directions respectively, and the readings are x1 and x2 respectively, and the support of the outer frame axis system in the Y direction is repeatedly adjusted so that the value of the level meter in the +X axis ±N° direction is close to the average value #imgabs0#; then the inner frame is rotated so that the level meter points back to the +X axis direction, and the level meter rotates 90° so that the sensitive direction of the level meter points to the +Y axis direction; the support of the outer frame axis system in the X direction is repeatedly adjusted so that the value of the level meter in the +Y axis ±N° direction is close to the average value #imgabs1#; the rotary axis system reaches a vertical state with an accuracy of m arc seconds. The method of the present invention is simple and convenient, and is not limited by external structures and conditions.
Owner:CHINA STATE SHIPBUILDING CORP NO 707 RES INST
Small-angle corner trestle structure for bridge construction
The utility model discloses a small-angle corner trestle structure for bridge construction, which comprises a linear section and a corner section, the corner section is provided with a corner first-layer main beam, a corner second-layer main beam and a corner third-layer main beam, and the corner first-layer main beam, the corner second-layer main beam and the corner third-layer main beam are sequentially erected and fixedly connected. The small-angle corner trestle structure for bridge construction is small in welding amount, high in construction efficiency and low in construction cost.
Owner:中交(广州)建设有限公司
No overhead corner (stamped)
1. Name of the designed product: corner without overhead (stamping). 2. Use of the designed product: corner without overhead for fixing. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.
Owner:莫龙秀
Showing stand easy to fold
A frame body comprises an upper frame, a lower frame, a left side vertical frame and a right side vertical frame, a first corner connecting piece comprises a first corner body and a first corner connecting part, and vertical first convex shafts are arranged in the middle of the left end of the upper frame and the middle of the left end of the lower frame respectively. The first corner body is rotationally connected with the first convex shaft; the second corner connecting piece comprises a second corner body and a second corner connecting part, vertical second convex shafts are arranged in the middle of the right end of the upper frame and the middle of the right end of the lower frame respectively, the second corner body is rotationally connected with the second convex shafts, and the left side vertical frame and the right side vertical frame do not interfere with each other when rotating and folding in the same direction at the same time; and a locking piece is connected between the left locking part and the right locking part. The showing stand easy to fold can be conveniently folded and stored, the transportation cost is reduced, other tools are not needed, time and labor are saved, and the showing stand easy to fold is easy to disassemble and assemble and firm in connection.
Owner:CHANGZHOU YIJIANG DISPLAY SYST CO LTD
corner profile
Owner:MEXYTECH
Telescopic hole mold
ActiveCN224048672UForms/shuttering/falseworksAuxillary members of forms/shuttering/falseworksMechanical engineeringMold removal
Owner:ZHEJIANG JIANSHU ENGINEERING TECHNOLOGY CO LTD
A prefabricated corner structure
ActiveCN117702917Breduce productionReduce adjustabilityStrutsCovering/liningsMechanical engineeringPrefabrication
The application discloses a prefabricated corner structure, which comprises a corner module, the corner module comprises a stand column (1) and corner support beams (2) arranged at two ends of the stand column (1) respectively, the corner support beams (2) are respectively provided with fixing pieces (4), the fixing pieces (4) are provided with first strip-shaped adjusting holes, external corner pieces (3) are provided with adjusting pieces (5) at two ends respectively, the adjusting pieces (5) are provided with second strip-shaped adjusting holes, the first strip-shaped adjusting holes and the second strip-shaped adjusting holes are one-to-one corresponding and matched, and the first strip-shaped adjusting holes and the second strip-shaped adjusting holes have an included angle greater than 0° in the same horizontal plane when matched, the relative positions of the fixing pieces and the corresponding adjusting pieces can be adjusted through the design of the strip-shaped holes, the relative positions of the corner support beams and the external corner pieces can be adjusted, and the angle of the outer side surface of the external corner piece can be adjusted. The whole can be connected through screws, 100% prefabrication and more than 95% recycling can be realized.
Owner:HALUMM CONSTRUCTION TECHNOLOGY CO LTD
Sleeve
The utility model relates to a sleeve which comprises a body and a buffering circular ring. The body defines a circumferential direction, a radial direction and an axial direction, the body comprises an outer side wall and a plurality of caulking groove parts, the plurality of caulking groove parts are concavely arranged on the outer side wall in a manner of extending along the radial direction, and the plurality of caulking groove parts are arranged at intervals in the circumferential direction so as to define a plurality of abutting parts; any abutting part is arranged between the two caulking groove parts in the circumferential direction. The buffering circular ring is connected to the outer side wall in a sleeved mode in the axial direction to be deformed into a geometric polygon, the geometric polygon comprises a plurality of embedding parts and a plurality of corner parts, the embedding parts are embedded into the embedding groove parts, and the corner parts abut against the abutting parts. When the sleeve is collided, the buffering circular ring can effectively absorb impact force to protect the structural integrity of the body, and due to the design that the buffering circular ring is changed into the geometric polygon, the sleeve can be effectively prevented from continuously rotating and displacing when falling occurs.
Owner:林英模
Flexible hinge for spatial parallel directional vibration isolation platform and mounting method
The invention relates to a flexible hinge for a spatial parallel directional vibration isolation platform and an installation method, and relates to the field of spatial control execution mechanisms. A tubular sheath wraps a radial limiting part, a radial positioning part and a hinge, and the top of the tubular sheath is connected with the radial positioning part to radially position the flexible hinge; a gap is formed between the bottom of the sheath and the radial limiting part to form secondary corner limiting; a plurality of groups of cutting grooves penetrate through the wall surface of the hinge, and the appearances of the adjacent cutting grooves are symmetrical along the cross section of the hinge; the groove width of the same part of the cutting groove and the hinge axis direction and the bending part is greater than the groove width of the part parallel to the hinge cross section; the L-shaped flexible beam is embedded into the wide part of the cutting groove; the groove width of the part parallel to the cross section of the hinge forms primary corner limit, the primary corner limit is larger than the maximum corner of the flexible hinge, the secondary corner limit is larger than the primary corner limit, and the flexible hinge has the advantages that the service life of the flexible hinge is effectively prolonged, and the reliability of the flexible hinge is effectively improved.
Owner:BEIJING INST OF CONTROL ENG
A method for end-following motion control of a snake-like redundant manipulator
The present invention discloses a method for controlling the end-following motion of a serpentine redundant manipulator, comprising the following steps: inputting a following mode and a following distance; the following modes include: forward following, backward following, and translational following; recording the current path of the serpentine redundant manipulator as the original path, and obtaining the current path data; calculating the coordinates of each joint of the current manipulator based on the rotation angle data of each joint; sequentially calculating the distance that each new joint point on the new path slides on the original path based on the triangles formed by the new paths obtained under different following modes and the original paths; then calculating the coordinates of each new joint point on the new path, and then calculating the pitch angle and yaw angle of each joint to achieve following motion. The method for controlling the end-following motion used in the present invention is simple to operate, highly efficient, and has a fast calculation speed.
Owner:ZHEJIANG UNIV HIGH-END EQUIP RES INST
Intelligent detection method, system and equipment for mounting angle of cross arm of corner rod and medium
The invention discloses an intelligent detection method, system and device for the installation angle of a cross arm of a corner rod, and a medium. The method comprises the following steps: constructing a strain clamp rectangular frame corresponding to each strain clamp contour point set; constructing a first line coordinate point set, and constructing a second line coordinate point set; screening out at least one first target line straight line and at least one second target line straight line according to the first line coordinate point set, the second line coordinate point set and the strain clamp rectangular frame; calculating a first included angle between the first target line straight line and the X-axis positive direction, and calculating a second included angle between the second target line straight line and the X-axis positive direction; calculating a third included angle between the central axis direction of the cross arm and the positive direction of the X axis; and performing difference calculation on the first included angle and the second included angle and the third included angle to obtain two difference calculation results, and performing intelligent detection on the mounting angle of the cross arm of the corner rod according to the two difference calculation results. The intelligent detection accuracy and detection efficiency of the mounting angle of the cross arm of the corner rod can be improved.
Owner:HUNAN SUKE INTELLIGENT TECH CO LTD
Corner piece body
1. The name of the product of this design: the main body of the corner piece. 2. Purpose of the product of this design: The overall product is used for connection at the corner position of the suspension frame, and the local use for which protection is required is the main body of the corner piece. 3. The key point of the design of this product lies in the shape of the solid line part. 4. The picture or photo that best illustrates the key points of the design: 3D drawing of Design 1. 5. Designate Design 1 as the base design. 6. Other situations that need explanation: The portion indicated by the dotted line is the portion for which protection is not requested, and the dot-dash line only indicates the boundary between the portion for which protection is requested and the portion for which protection is not requested.
Owner:KAWAJUN KK
Method for calculating horizontal displacement of lifted structure under action of horizontal force during lifting construction
The invention provides a method for calculating the horizontal displacement of a lifted structure under the action of horizontal force during lifting construction. The method comprises the steps that a target structure is lifted through n vertical lifting ropes; establishing a rectangular coordinate system, obtaining lifting point data, and obtaining a horizontal force acting on the target structure and an acting point coordinate; calculating the gravity of the target structure and the gravity center of the target structure; a gravity center coordinate system is formed, the next series of data of the gravity center coordinate system are calculated and calculated, and finally the displacement (ux, uy) of the target structure is obtained through calculation and compared with a limit value. According to the method, under the conditions that the ratio of the horizontal load to the vertical load is small (not larger than 15%), the horizontal rigidity of the lifted structure is relatively large, and the pulling force of the lifting rope is obtained through vertical analysis, the horizontal displacement of the lifted structure, the horizontal component force of the lifting rope, the vertical rotating angle and the like are calculated, and complex geometric nonlinear finite element analysis is avoided.
Owner:MCC (SHANGHAI) STEEL STRUCTURE TECHNOLOGY CORP LTD
Corner piece body
1. The name of the product of this design: the main body of the corner piece. 2. Purpose of the product of this design: The overall product is used for connection at the corner position of the suspension frame, and the local use for which protection is required is the main body of the corner piece. 3. The key point of the design of this product lies in the shape of the solid line part. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. Other situations that need explanation: The portion shown by the dotted line is the portion for which protection is not requested, and the dot-dash line only indicates the boundary between the portion for which protection is requested and the portion for which protection is not requested.
Owner:KAWAJUN KK