28 results about "Lateral deflection" patented technology

A racquet including a frame including a head portion, a handle portion, and a throat portion. The head portion forms a hoop that defines a string bed plane. The head portion of the racquet being formed of a fiber composite material. When the racquet is tested under the racquet lateral bending test, the racquet has a lateral deflection of at least 6.5 mm when measured in a first direction that is parallel to the string bed plane and perpendicular to the longitudinal axis. When the racquet is tested under a racquet forward / rearward bending test, the racquet has a forward / rearward deflection with respect to the longitudinal axis of less than 7.3 mm when measured in a direction that is perpendicular to the string bed plane and perpendicular to the longitudinal axis.

The present application relates to a kind of pre-tensioned steel wire rope lateral impact response calculation method considering geometric and friction nonlinear coupling.First, the linear tensile constitutive model of pre-tensioned steel wire rope is constructed, Von Kármán large deflection theory is introduced, and the geometric hardening relationship of the nonlinear growth of axial tension with lateral deflection is established;Subsequently, a bilinear bending stiffness model is constructed to calculate the critical anti-sliding torque that evolves dynamically with tension;Based on the principle of energy conservation and Rayleigh-Ritz method, the system total potential energy functional of axial tensile potential energy and nonlinear bending potential energy is constructed, and the maximum impact deflection and tension response of the steel wire rope are obtained by solving the energy residual equation, the maximum response is substituted back into the constitutive equation, and the maximum nominal stress of the midspan cross section, the maximum axial tension and the extension length of the internal slip zone are calculated.The present application has very high calculation efficiency compared with full-size finite element simulation, and is suitable for the rapid design and safety evaluation of steel wire rope protection system.

A roadway barrier system includes a plurality of compact profile highway barriers preferably which are of a height which does not obstruct the viewing lines of a vehicle drivers on the road and permits them to see, for example, cross-traffic situations, work sites, and pedestrians. The barriers have tapered side walls which help maintain a crash on the roadway. Hooks are used to connect barriers end to end, and the hooks are positioned within a channel groove at the end of each barrier. When connected, the hooks of adjacent barriers are largely within the channel grooves of the two adjacent barriers which enables superior lateral deflection prevention. In addition, when connected a V shape section between the ends of adjacent rigid concrete sections of the plurality of rigid concrete sections extends upward from a base of the adjacent rigid concrete sections at an angle of five degrees or less.

The utility model discloses a winding tool for rapid production of composite tubular products, which comprises a plurality of coaxially arranged winding cylinders, an internal connecting shaft is arranged between every two adjacent winding cylinders, two sides of each winding cylinder are provided with first threaded holes, two sides of each internal connecting shaft are provided with internal connecting discs, and the internal connecting discs are provided with second threaded holes. A second threaded hole is formed in the internal connecting disc, and an external connecting shaft is arranged on the outer side of the two-end winding column body. According to the utility model, the plurality of coaxial winding column bodies are arranged, so that the forming of a plurality of products can be completed by single assembly, the assembly frequency of the tool is effectively reduced, and the production efficiency is improved. And the length of each winding column body is designed to be short, so that demolding operation is facilitated. The supporting rod is additionally arranged in the middle of the tool, bearing is facilitated, lateral deflection deformation of the tool is reduced, and therefore the forming size precision of a product is improved. The supporting rod is connected with the tool through the bearing, so that stable rotation of the tool is ensured, and abrasion of the tool and the supporting rod is avoided.

The invention provides a method and a system for reducing abdominal support interference in a trailing separation trajectory capture wind tunnel test, and the method comprises the steps: S1, obtaining a high-speed flight platform abdominal support which comprises a sweepback meeting a preset requirement, and the cross section of the abdominal support is a rhombic section; a connecting block is arranged between the abdominal support and the high-speed flight platform, and the abdominal support can support the high-speed flight platform without transverse deflection in all test states according to the deflection angle of the connecting block; and S2, carrying out numerical simulation comparative analysis based on an aircraft model in a multi-body back separation trajectory capture wind tunnel test and an abdominal support, and selecting an abdominal support closest to a non-abdominal support interference pressure coefficient curve as an optimal scheme. The trajectory capture test model is matched with the characteristics of the support and the flow field, and the influence on the flow field where the separation load is located is small; the connecting block with the deflection angle can effectively counteract lateral deflection of the abdominal support caused by incoming flow sideslip, so that the tail retreating separation under different sideslip conditions is adapted.

The utility model relates to a boxing training device, in particular to a vertical boxing target convenient to adjust a side target, which comprises a target rod and the side target, the lower portion of the target rod is mounted on a base, the upper end of the target rod is provided with a mounting sleeve, a transverse spring arm is transversely arranged on the mounting sleeve, and the side target is mounted on a connecting arm. The connecting arm is mounted at the tail end of the transverse spring arm through a multidirectional connecting piece; the multi-directional connecting piece is of a double-joint structure, a first joint of the multi-directional connecting piece can meet transverse deflection of the connecting arm so as to adjust the orientation of the side target, a second joint of the multi-directional connecting piece can meet longitudinal deflection of the connecting arm so as to adjust the height of the side target, meanwhile, the side target can be located in more orientations by comprehensively adjusting the multi-directional connecting piece, and the whole adjusting process is simple, rapid and convenient. And a user can quickly adjust so as to meet personalized training requirements.

This utility model discloses an anti-kink rigid lifting lug device, belonging to the field of lifting lug technology. It includes a connecting pipe and steel pipes respectively installed at both ends of the connecting pipe. Lifting lugs are installed on both steel pipes, and welding plates are provided on the inner side of each lifting lug. Two mounting holes are provided on the lifting lugs, with a bearing fixedly installed in the upper mounting hole. This utility model allows the outer wall of the welding plate to be flush with the outermost derrick of the vertical shaft. Two upper steel plates of the welding plate are welded to the outer crossbeam of the vertical shaft derrick, and the lower steel plate is welded to the side wall of the outer vertical beam. During welding, care is taken to ensure that the center line of the upper and lower mounting holes of the lifting lugs is parallel to the vertical beam of the vertical shaft derrick. The lifting buckle on the pulley block is installed in the bearing on the lifting lug. Because the lifting lug is welded and fixed to the steel pipe, it provides support on both sides and is in a rigid connection, preventing the vertical shaft derrick from lateral deflection during lifting. This ensures that the upper and lower pulley blocks are subjected to vertical force in the same direction, preventing the lower pulley block from twisting under force.

A feedthrough assembly for a bulkhead for mobile and static engine components. The feedthrough assembly can be configured to include a flexible bellows that allows for movement and sealing of the engine components relative to the bulkhead. In one aspect, a flexible bellows spherical element can be provided in the feedthrough assembly. In another aspect, a flexible bellows bellows element can be provided in the feedthrough assembly. These flexible bellows elements can have a plurality of bellows sections that include bellows sections having different stiffnesses. The bellows sections can be configured to allow for movement of the shaft relative to the bulkhead, including lateral deflection and tilt.

This invention discloses a method, system, and medium for real-time prediction of the response of a single pile in spatially variable clay. The method includes: establishing a stochastic finite element model of the pile foundation and characterizing the spatial variability of the undrained shear strength of marine clay to generate a pile response dataset. The pile response data in the dataset includes the pile's lateral deflection, rotation angle, bending moment, and shear force. Four depth operator network models are constructed and trained based on the pile response dataset. The trained depth operator network models are then used to predict the lateral deflection, rotation angle, bending moment, and shear force of the pile in real time. This invention overcomes the bottleneck of low computational efficiency in existing stochastic finite element models, constructs an efficient prediction model, and enables rapid and accurate prediction of the single pile response.

The invention relates to a power system thrust measuring device, belongs to the technical field of power system test equipment, and solves the technical problem that the coaxiality is difficult to guarantee after a power system is installed, so that the power system laterally deflects during ignition, and the measuring device comprises a thrust frame, an adapter frame and a front support assembly. The thrust frame is fixed on a test bed foundation through a fastener and is used for in-situ calibration of a power system before test run and thrust measurement in the test run process. One end of the transfer frame is mounted at the front end of the thrust frame, and the other end of the transfer frame is positioned at the front end of the power system for butt-joint mounting of the power system and the thrust frame. The front supporting assembly is located at the rear end of the power system, fixed to a test bed foundation and used for supporting the power system so that the power system can be coaxial with the measuring system of the thrust frame. The device is used for axial thrust measurement in the ignition test of the liquid power system.

This invention provides a bridge tensioning control method, device, electronic equipment, and storage medium. The method includes: determining whether the current tensioning process is the first tensioning process; if so, performing a first-stage synchronous tensioning operation according to a tensioning method that synchronizes elongation; acquiring the elongation deviation and force deviation between the tensioning jacks at both ends of the steel strand; determining a first target tensioning method based on the elongation deviation and force deviation, and performing a next-stage synchronous tensioning operation based on the first target tensioning method; jumping back to the step of "acquiring the elongation deviation and force deviation between the tensioning jacks at both ends of the steel strand," and continuing with subsequent steps to complete the first tensioning process. This invention can avoid the problem of lateral deflection of the bridge.

The utility model relates to a three-linkage device which is used for installing doors and windows and is characterized in that a window and a boss are arranged at the top of a shell, and a strip-shaped through hole is formed in the front surface; the long adjusting plate is installed on the top of the shell, a left strip-shaped hole, an inclined strip-shaped hole and a right strip-shaped hole are formed in the top of the long adjusting plate, the transverse deflection plate penetrates through the left strip-shaped hole and the top face of the shell through a screw to be installed on the top of the long adjusting plate, and a protruding column protrudes out of the bottom of the transverse deflection plate. The longitudinal deflection plate and the short adjusting plate are sequentially stacked and installed on the inner wall of the shell from inside to outside in the shell, an inclined strip-shaped hole and a protruding nail are arranged on the front face of the short adjusting plate, and the left end of the longitudinal deflection plate penetrates through the inclined strip-shaped hole of the short adjusting plate and the front face of the shell through a rivet to be installed. Two through holes are formed in the right side face of the shell, and one ends of the short and long plate screws penetrate through the two through holes to be connected with the right ends of the short and long adjusting plates through threads. The utility model has the advantages of simple structure, convenience in adjustment, strong bearing capacity, difficulty in structure looseness and long service life.

This invention discloses a ground effect vehicle, comprising a fuselage and a bionic wing. The fuselage has a main wing in its midsection. The bionic wing is connected to the bottom of the main wing and is driven to swing around an axis perpendicular to the wing surface. In use, the bionic wing passively swings adaptively with the environment to streamline the wake, reduce induced drag, and suppress lateral deflection, thereby improving the stability of water gliding and low-altitude flight. The bionic wing does not require an independent drive mechanism and complex control logic, greatly simplifying the structure and reducing the failure rate. During cruise, the bionic wing swings naturally with the tail flow field, breaking up concentrated wake vortices into smaller vortices, accelerating vortex dissipation, significantly reducing induced drag and energy consumption. During water takeoff and landing, the bionic wing is immersed in the water and passively swings with the water flow to generate a restoring torque, automatically suppressing directional yaw caused by waves and improving wave resistance stability. It is suitable for long-term unmanned inspection operations on the sea surface.

This invention relates to the field of building foundation pit deformation detection technology, specifically a machine vision-based method for detecting the deformation of anti-buoyancy anchor bolts. The method includes setting a high-contrast array of artificial marker points on the anchor bolt observation section, and using a fixed industrial camera to periodically acquire image sequences. An improved template matching algorithm is used to locate the pixel coordinates of the marker points, which are compared with a reference image to obtain a two-dimensional pixel displacement vector. This vector is then converted into a local three-dimensional spatial displacement by combining the camera's intrinsic and extrinsic parameters, constructing a three-dimensional displacement field. This three-dimensional displacement field drives a parameterized elastic foundation beam flexural deformation model to solve for and invert the axial strain distribution and lateral deflection curves of the anchor bolt. This method achieves non-contact, full-domain three-dimensional deformation acquisition. By coupling the three-dimensional displacement field with the foundation beam model, axial strain and lateral deflection can be acquired simultaneously, improving the completeness and accuracy of anti-buoyancy anchor bolt deformation detection.

The invention discloses a method for evaluating the vulnerability of an underground station under the influence of excavation disturbance of an adjacent foundation pit, and relates to the field of underground station structural damage evaluation.The method comprises the steps that (1) corresponding engineering geological survey reports and structural design parameters are collected for an underground station to be researched; (2) determining a probability distribution model of the maximum lateral deflection of the continuous wall; (3) establishing a finite difference numerical model of influence of adjacent foundation pit excavation on the underground station, and calculating interlayer displacement angles of the underground station under different disturbance working conditions; (4) constructing a demand model under excavation disturbance of the adjacent foundation pit, determining a threshold value of the ratio of the excavation depth to the horizontal distance of the station in each damage state based on the model, and obtaining a logarithmic standard deviation of a disturbance demand through statistical analysis; and (5) constructing a disturbance vulnerability curve of the underground station structure. According to the method, the damage probability of the underground station under different disturbance intensities can be quantitatively evaluated, and the occurrence possibility of various damage states of the underground station is effectively revealed.

An expansion joint is formed from a plurality of layers comprising a ring tie-in ply, a pair of arch rings at opposing transition points, two body plies, with inverted bias cut angles between about 48° to 60°, where about is typically plus or minus 1 degree. The arch geometry is such that the arch has an axial length C between the transition points and an inner surface arch circumference length of A between the transition points in a neutral state, such that the maximum compression distance for the expansion joint is the length C, the maximum elongation distance for the expansion joint is a length (A−C), and a maximum lateral deflection length for the expansion joint is a length Y.

The utility model relates to detection device technical field especially relates to building pipeline leakage detection device, including pipeline, the pipeline outside in proper order encircle and carry out the adaptive positioning leakage detection one -level pipe clamp leakage detection subassembly, two -level pipe clamp leakage detection subassembly and three -level pipe clamp leakage detection subassembly, one -level pipe clamp leakage detection subassembly, two -level pipe clamp leakage detection subassembly and three -level pipe clamp leakage detection subassembly both sides center all are equipped with the auxiliary rod that guides the adjustment along the pipe diameter traction, through one -level to three -level pipe clamp subassembly through the auxiliary rod and spring traction rope form distributed detection, when detecting, three -level assembly synchronous along the pipeline axial movement, counterweight bending plate and strong magnetic plate pass through spring column dynamic adjustment gravity center, offset when the lateral deflection moment of long pipeline detection, make overall device gravity always close to pipeline axis, reduce overall error degree, ultrasonic interaction module combines infrared camera, realize sound -light multimode data acquisition, improve overall leak point positioning accuracy.

This invention provides an explosion-proof central switchgear, relating to the field of high-voltage switchgear, including a middle frame, a double-door assembly, a grille, and a rear cover. This invention constructs a protective structure coupled with graded pressure relief and airflow path control by setting up a first assembly, a second assembly, and a first and second region formed by the grille. Specifically, when a low-pressure arc fault occurs inside the cabinet, the air pressure pushes the second plate of the second assembly to slide backward against elastic force, exposing a connecting opening on the grille. High-temperature, high-pressure gas inside the cabinet enters laterally into the first region through the connecting opening, and then is directionally discharged outside the cabinet through a first air hole on the side of the middle frame. During this process, the alternating arrangement of the first and second regions and the lateral opening of the connecting opening force the airflow to undergo multiple lateral deflections during the venting process, forming a serpentine flow path, significantly increasing airflow resistance and pressure loss along the flow path.

The application discloses a mechanical arm guiding mechanism and a mechanical arm, and particularly relates to the technical field of mechanical arms, and comprises a fixed column arranged vertically, and a fixed cross beam arranged vertically at the lower end of the fixed column. The guiding mechanism comprises a built-in tensioning assembly, which enables the limiting components to form upper and lower double-point oblique traction forces on the cantilever structure, directly generates a constraint torque opposite to the overturning torque, offsets the lower end outward deviation tendency caused by the load and the cantilever structure, and inhibits the deflection tendency. Under the action of the force, the cooperation gap between the first ball and the outer slide can be effectively reduced, and the gap can be prevented from continuously expanding with the increase of the load and the expansion of the stroke. Meanwhile, the continuous oblique traction force can simultaneously constrain the lateral deflection and torsional deformation of the support arm. In the working condition of full stroke opening and closing and load, the vertical posture precision of the arm body can be stably maintained, the centering accuracy and the running smoothness of the clamping operation are ensured, and the stability and the safety of the mechanical arm operation are greatly improved.

This invention relates to the field of check valves, specifically a marine external high-pressure shut-off check valve, comprising a drive mechanism for controlling the blocking and unblocking of media; a shut-off mechanism for controlling the blocking and unblocking of media, the drive mechanism being disposed on the shut-off mechanism; and a flow control mechanism for controlling the flow rate of the incoming media, the flow control mechanism being disposed within the shut-off mechanism. The drive mechanism includes a flange, the top of which is fixedly mounted with a support frame. In this marine external high-pressure shut-off check valve, the curved surface at the bottom of the bottom curved handle is collinear with the diagonal of the diamond-shaped disc, while the remaining portion at the bottom of the bottom curved handle is vertical. Therefore, under the action of the bottom curved handle, the diamond-shaped disc is locked by the bottom curved handle, preventing lateral deflection, thereby allowing the transition rod to move stably downwards or upwards.

The utility model relates to a linear motor, an actuator, a suspension system and a vehicle. The linear motor comprises a first mechanism; the second mechanism is sleeved with the first mechanism; the guide mechanism comprises a sliding block and a sliding rail, the sliding block is connected with one of the first mechanism and the second mechanism, the sliding rail is connected with the other one of the first mechanism and the second mechanism, and the sliding block is matched with the sliding rail so as to guide the first mechanism to move relative to the second mechanism in the axial direction of the linear motor. One of the first mechanism and the second mechanism is connected with the sliding block, the other of the first mechanism and the second mechanism is connected with the sliding rail, and the sliding block is matched with the sliding rail, so that the first mechanism moves relative to the second mechanism in the axial direction of the linear motor. The sliding block and the sliding rail are in surface contact, the contact area is large, abrasion resistance is achieved, the possibility of dislocation separation is small, the possibility of lateral deflection between the first mechanism and the second mechanism can be reduced, and therefore the service life of the linear motor is prolonged, and the performance stability of the linear motor is improved.

The double-output pneumatic thin clamping jaw comprises an air cylinder body, a first piston rod and a second piston rod, wherein the first piston rod and the second piston rod are arranged in parallel. The main innovation points are as follows: the side wall of the piston rod is provided with a side wall hole with a rubber fixing seat for fixing a magnet, so that the assembly efficiency is improved, and the buffering and damping effects are achieved; a side transmission block structure is adopted, the thickness of a transmission block (such as a first transmission block) is kept consistent with that of a sliding block, and the overall height is remarkably reduced; the guide rail is fixed through the outer mounting groove, lateral deflection force of the sliding block is offset through transverse limiting of the groove wall, and running stability is guaranteed by matching with a ball sliding rail structure. The air passages of the two piston cavities can be synchronously controlled through the communicating holes or the synchronous reverse movement of the double piston rods can be realized through meshing of the transmission gears. The clamping jaw has the advantages of being compact in structure, large in output force, stable in operation, low in cost and the like, and is particularly suitable for precise industrial grabbing operation.

The application discloses a kind of vehicle-mounted aircraft landing gear tire loading simulation test hydraulic systems, including hydraulic oil source module, servo loading module, attitude control module and brake module;Wherein attitude control module includes lateral inclination module, vertical module, lateral movement module, the main oil way of hydraulic oil source module is divided into two roads and enters servo loading module and attitude control module respectively, each module is connected with corresponding oil cylinder by element, and each module is simulated to the different control effect of aircraft tire by each oil cylinder action, to complete corresponding test.The application can fully meet the requirements of vehicle-mounted aircraft landing gear tire loading simulation test hydraulic systems of sliding test, falling experiment and obstacle test, the application is good in universality, can simulate the lateral inclination angle range of landing gear tire under different working conditions, lateral deflection angle range, vertical loading formation, lateral adjustment stroke, detect the reliability of aircraft landing gear tire under different working conditions.

The invention discloses an obstacle crossing and deicing device for a power transmission line, which comprises a mounting rack, and is characterized in that the mounting rack is provided with a deicing mechanism and at least three groups of advancing mechanisms arranged along the advancing direction of the power transmission line; the advancing mechanism comprises an advancing support arm in contact with a power transmission line and a driving wheel arranged on the advancing support arm, and the advancing mechanism is connected with the mounting rack through the three-degree-of-freedom parallel mechanism; the three-degree-of-freedom parallel mechanism comprises a fixed platform, a movable platform and at least three driving branch chains with the lengths capable of being independently controlled, and the advancing support arm is driven to achieve composite space pose transformation including lifting and lateral deflection by coordinately controlling the lengths of the driving branch chains, so that the advancing support arm can actively adapt to space distribution of obstacles along a power transmission line, and the power transmission line is driven to move. Stable obstacle crossing advancing is realized; meanwhile, through cooperation of the driving wheel and the clamping assembly, the stability and the bearing capacity in the advancing process are improved; the device is simple in structure and high in obstacle crossing adaptability, and the safety and reliability of deicing operation of the power transmission line can be effectively improved.

The application discloses an intelligent monitoring method for a cantilever structure climbing frame attached lattice column, and relates to the field of cantilever structure climbing frame attached lattice column, which comprises the following steps: constructing a critical instability database of the lattice column, providing a basis for monitoring data linkage critical state, determining three-dimensional core load parameters and test thresholds in combination with the actual stress field of the lattice column, carrying out indoor orthogonal critical instability tests based on the three-dimensional load parameters, collecting lateral deflection, vertical displacement, column axial force and strain data of the lattice column under different load combinations, on-site monitoring and data collection, and differentiating sensor arrangement for key monitoring points. By adopting miniaturized and high adaptability sensors and implementing differentiated encryption arrangement, in combination with multi-channel synchronous collection and data preprocessing, the application is beneficial to obtaining micro-deformation and internal force data that cannot be captured by traditional manual observation, is convenient for solving the safety hazards caused by data loss, and provides complete data support for subsequent evaluation.

This invention discloses a visual detection-based adaptive control method and system for scraper conveyor chain deflection, belonging to the field of intelligent control technology for mining machinery. The method includes: deploying a visual detection device on the scraper conveyor trough to acquire images of the scraper chain's operation and, through sequence deflection recognition, obtaining the lateral deflection angle and the rate of change of the deflection angle; constructing a scraper chain deflection state discriminator based on the rotational structure characteristics of the deflection chain loop, performing anomaly detection, and outputting abnormal deflection state parameters; calling the deflection strategy control channel to parse the target deflection control parameters, driving the deflection control module to execute scraper chain deflection control and monitor and provide feedback, thus achieving adaptive closed-loop control. This invention solves the technical problems of traditional detection methods being unable to accurately capture deflection-related states in real time, accurately identify deflection anomalies, and dynamically match and adapt control strategies, achieving adaptive control of the scraper conveyor chain deflection, and improving the technical effect of improving equipment operation stability and control accuracy.

A roadway barrier system includes a plurality of compact profile highway barriers preferably which are of a height which does not obstruct the viewing lines of a vehicle drivers on the road and permits them to see, for example, cross-traffic situations, work sites, and pedestrians. The barriers have tapered side walls which help maintain a crash on the roadway. Hooks are used to connect barriers end to end, and the hooks are positioned within a channel groove at the end of each barrier. When connected, the hooks of adjacent barriers are largely within the channel grooves of the two adjacent barriers which enables superior lateral deflection prevention. In addition, when connected a V shape section between the ends of adjacent rigid concrete sections of the plurality of rigid concrete sections extends upward from a base of the adjacent rigid concrete sections at an angle of five degrees or less.