Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

250 results about "Force balance" patented technology

Flexible device between double push rods and push bucket, synchronous regulation and control method of double push rods and manure pushing truck

The invention provides a flexible device between double push rods and a push bucket, a synchronous regulation and control method of the double push rods and a dung pushing truck, and belongs to the technical field of pushing devices.The flexible device comprises an elastic pressed position covering part which can be elastically pressed and contracted; the first double-end connecting rod penetrates through the elastic pressed position covering piece to be rotationally arranged, and the first double-end connecting rod is rotationally connected with the push bucket; the position covering sleeve rod is connected with the elastic pressed position covering piece in a sliding and sleeving mode, and the position covering sleeve rod is connected with the push rod; the second double-end connecting rod penetrates through the covering sleeve rod and is rotationally arranged; the elastic tension complementing pieces can be elastically tensioned and lengthened, and the elastic tension complementing pieces are located on the two sides of the elastic compression complementing piece; and one end of the elastic pulled position covering piece is rotationally connected with the first double-end connecting rod, and the other end is rotationally connected with the second double-end connecting rod. The phenomenon that the connecting position of the flexible device and the connecting position of the flexible device and the push bucket are unbalanced in stress is greatly reduced, the flexible device and the push bucket are in a stress balance state all the time, and loads of all components are avoided.
Owner:NINGXIA UNIVERSITY +1

Improved structure of electromagnetic force balancing device for electronic balance

The utility model belongs to the technical field of electronic balances, and particularly relates to an improved structure of an electromagnetic force balancing device for an electronic balance, which comprises a stand column assembly vertically arranged in the electromagnetic force balancing device, the stand column assembly comprises an outer column body and an inner column body fixedly arranged in the outer column body, and a damping ring is sleeved outside the outer column body. A plurality of stress buffering grooves are vertically formed in the surface of the outer column body. According to the utility model, the durability of the permanent magnet is improved, the possibility of demagnetization of the permanent magnet is greatly reduced, the influence of uncertainty in the measurement process of the electronic balance is further reduced, and the accuracy and reliability of the measurement result are ensured.
Owner:ZHENGZHOU FURUITANG PHARMA

Splicing type mounting method for steel structure

The invention provides a steel structure splicing type installation method, and belongs to the technical field of steel structure construction.The method includes the steps that firstly, based on a three-dimensional design drawing, a structure map is established, and node coordinates and connection relations are identified; carrying out bearing capacity partitioning through a minimum spanning tree algorithm, and calculating a bearing capacity gravity center; carrying out stability partitioning, calculating a mass gravity center, and carrying out correlation analysis on the mass gravity center and a bearing capacity gravity center; calculating an optimal splicing sequence based on an elastic mechanical equilibrium equation, and establishing a splicing process diagram; installing a first reference node according to the process diagram, and establishing a coordinate system; connecting pieces are installed in sequence, and center-of-gravity deviation detection is carried out; when the structure reaches a critical state, carrying out overall stress measurement and adjusting node parameters; and finally, all splicing is completed, the geometric dimension and stress distribution are verified, and the problems of stability and stress balance existing in a traditional method are solved.
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD

Disordered grabbing algorithm for mechanical arm

The invention relates to a mechanical arm disordered grabbing algorithm, and belongs to the technical field of robotics, and the method comprises the steps: firstly, obtaining a target material image and a point cloud sample, and training a multi-modal attention fusion perception model through sample enhancement processing and a difficult case mining mechanism after the target material image and the point cloud sample are labeled with categories, postures and grabbing areas; secondly, a mechanical arm obtains operation area data, the operation area data are input into a multi-modal attention fusion perception model to obtain initial attitude parameters, errors are corrected by combining with a visual data fusion calibration model, and the material stacking state is judged through a dynamic reference comparison method; thirdly, based on the correction parameters and the stacking state, an evaluation function is constructed to screen collision-free and stress-balanced grabbing points, and a collision-free path is planned by fusing kinematics constraints of the mechanical arm; and finally, the grabbing action is executed, the strength and the posture are adjusted in real time according to the contact force and the position deviation, the material stability is evaluated through vision after grabbing, and the stability and the operation efficiency of the mechanical arm in a complex disordered scene are improved.
Owner:SHANGHAI XINGTUO TECH CO LTD

Emergency Autoland Braking System

An emergency autoland braking system for aircraft includes an electromechanical actuator configured to provide a braking force to rudder pedals for actuating a braking system without altering the existing braking system of the aircraft. An equalized braking force may be applied to both rudder pedals via a force balancing mechanism and a single linear actuator, or differential braking force may be applied via independent linear actuators. The system is compatible with both open and closed loop control for commanding a braking force.
Owner:TEXTRON INNOVATIONS INC

Spring module, force balancing device, force balancing system and medical assistance system

The invention discloses a spring module, a force balancing device, a force balancing system and a medical auxiliary system. The spring module comprises a guide rail, a plurality of spiral springs and at least one rotating pair. The multiple spiral springs are connected in series parallel to the guide rail. The rotating pairs are movably connected to the guide rails, every two adjacent spiral springs are connected through one rotating pair, and the rotating axes of the rotating pairs coincide with the axes of the spiral springs. According to the application, a plurality of spiral springs are connected in series to form a long spring, and the long spring stretches under the guidance of the revolute pair, so that the spring can be prevented from bending. The two opposite ends of every two adjacent spiral springs can generate relative rotating motion through the corresponding rotating pair, it is guaranteed that the two ends of each spiral spring have the relative rotating freedom degree, and the spiral springs can stretch out and draw back in the track close to the theory.
Owner:CORNERSTONE TECH (SHENZHEN) LTD

Pressure self-balancing tunnel lining surrounding rock composite damping structure and pressure self-balancing method

The invention belongs to the anti-seismic field of underground engineering, and particularly discloses a pressure self-balancing tunnel lining surrounding rock composite damping structure and a pressure self-balancing method.The structure comprises a composite damping layer, and the composite damping layer comprises a surrounding rock contact layer close to the side of surrounding rock and a lining contact layer close to the side of a lining; the surrounding rock contact layer is made of a high-damping rubber-basalt fiber composite material and is pre-pressed and embedded into a surrounding rock crack; the lining contact layer is made of a composite viscoelastic material in which flexible capsules are uniformly embedded; the flexible capsule body is of an upper-lower double-layer structure composed of an upper capsule body and a lower capsule body, and the upper capsule body and the lower capsule body are filled with non-Newtonian fluid. A storage bag is arranged on one side of the lower-layer bag body and is separated from the other part of the lower-layer bag body; and one-way hydraulic valves are arranged between the upper-layer bag body and the lower-layer bag body and between the storage bag and the lower-layer bag body. The force balance between the surrounding rock and the lining can be adjusted according to the pressure designed in advance, and deformation coordination among the surrounding rock, the buffer layer and the lining is facilitated.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI

Heavy-load linear guide rail pair loading device

The invention discloses a heavy-load linear guide rail pair loading device, and relates to the field of linear guide rail pair tests, the heavy-load linear guide rail pair loading device comprises a supporting rack component, a sliding test component and a hydraulic loading component, the supporting rack component comprises a main supporting rack, a portal frame and a linear driving assembly; the sliding test component comprises a working table, a tested guide rail pair and a load docking port; the hydraulic loading component comprises a hydraulic cylinder and an adapter port, and the adapter port and the load docking port are configured to realize stress balance between the adapter port and the load docking port when being subjected to a load; wherein the upper surface of the load docking port is provided with a plurality of grooves, the grooves are internally provided with sliding tables of which the tops are inclined planes, the sliding tables are provided with positioning convex parts capable of sliding along the sliding tables, and the lower end of the adapter port is provided with a plurality of positioning concave parts which correspond to the positioning convex parts one by one and are matched with the positioning convex parts. The influence of a load deflection angle is eliminated by using the sliding table, and positioning is realized through the matching of the positioning convex part and the positioning concave part, so that the uniformity of stress load of each point of the detected guide rail pair is ensured.
Owner:NANJING UNIV OF SCI & TECH +1

A vehicle frame and vehicle

The application discloses a vehicle frame and a vehicle, and belongs to the technical field of vehicle parts, and at least partly solves the technical problems of heavy overall structure of the vehicle and insufficient lateral space of the vehicle caused by the suspension support and the suspension installation. The vehicle frame provided by the application comprises a suspension support and longitudinal suspension arms, the two longitudinal suspension arms are symmetrically arranged at the front side and the rear side of the suspension support respectively, the longitudinal suspension arms are hingedly arranged with the suspension support, the longitudinal suspension arms are arranged to rotate in a vertical plane, and the other ends of the longitudinal suspension arms are connected to wheels. The vehicle frame of the vehicle makes the longitudinal suspension arms on the front wheels and the rear wheels share one suspension support, saves space, reduces the overall weight of the vehicle frame, the front longitudinal suspension arm and the rear longitudinal suspension arm on the suspension support are symmetrically arranged, force balance is achieved, the stability of the suspension support is further improved, and finally, the longitudinal suspension arms swing longitudinally in the vertical plane, thereby saving the lateral installation space of the vehicle.
Owner:HUBEI SANJIANG SPACE WANSHAN SPECIAL VEHICLE +1

Hydraulic engineering gate opening and closing force balance adjusting equipment

The utility model discloses hydraulic engineering gate opening and closing force balance adjusting equipment, and relates to the technical field of hydraulic engineering, the hydraulic engineering gate opening and closing force balance adjusting equipment comprises a gate frame, the inner side of the gate frame is slidably provided with a gate body, the top end of the gate frame is fixedly connected with a supporting frame, and the upper surface of the supporting frame is fixedly connected with a protective shell; a lifting mechanism and a lubricating mechanism are arranged in the protective shell; the lifting mechanism is used for driving the gate body to be lifted, opened and closed, and the lifting mechanism comprises two winding discs rotationally connected to the inner wall of the protective shell. According to the hydraulic engineering gate, the lifting mechanism is arranged at the top of the hydraulic engineering gate, when the gate is opened and closed, the driving motor can be used for driving the two worms with the reverse threads to rotate, then the two winding discs are driven to rotate reversely at the same time, then the two winding discs are used for winding and unwinding the steel cable, the gate is lifted at the same time, and the working efficiency is improved. The top of the gate is subjected to balanced tension, and the smoothness and stability of the gate in the lifting opening and closing process are improved.
Owner:菏泽市河湖流域工程管理服务中心(菏泽市河湖长制服务中心)

Constant-force linear elastic device

The invention relates to a constant-force linear elastic device which comprises a base provided with a guide groove; one end of the elastic component is connected with the base; the sliding mechanism is connected with the other end of the elastic component and can move in the guide groove; restraining force exists between the guide groove and the sliding mechanism and is set to offset part of first elastic force, so that the output elastic force of the sliding mechanism is kept at a preset constant value and is unchanged in direction, and the first elastic force is the elastic force output by the elastic component to the sliding mechanism. The guide groove is matched with the sliding mechanism, the side wall of the guide groove limits the moving direction of the sliding mechanism, so that the restraining force is generated, and the direction and the magnitude of the restraining force can dynamically change according to the position of the sliding mechanism in the guide groove and the magnitude of the elastic force of the spring. The constraining force can offset part of the first elastic force, and the final output elastic force is kept at a preset constant value and is unchanged in direction, so that the effect of constant force output is achieved, and the requirements of force balance and other scenes for constant elastic force are met.
Owner:CORE MOTION MEDICAL ROBOT (SHENZHEN) CO LTD

Force balancing device, force balancing system and medical auxiliary system

The invention discloses a force balancing device, a force balancing system and a surgical robot. A force balancing device for an apparatus having a rotational joint comprising a first part and a second part rotatable relative to the first part about a first axis of rotation. The force balancing device comprises an output mechanism and a linkage mechanism. The output mechanism is used for providing output force so as to compensate the torque of the bias force on the second part relative to the first rotating axis. The traction mechanism comprises a first connecting part, a second connecting part and a third connecting part connected with the first connecting part and the second connecting part, the first connecting part and the second connecting part are used for being connected with an output mechanism, and the first connecting part can apply first torque to the third connecting part under the action of output force; the second connecting part can apply second torque to the third connecting part under the action of the output force, the first torque and the second torque are opposite in direction, and the third connecting part is used for being connected with a second component, so that the first torque and the second torque can be transmitted to the second component.
Owner:CORNERSTONE TECH (SHENZHEN) LTD

Workpiece clamping force balance regulation and control method and device

The invention discloses a workpiece clamping force balance regulation and control method and device, and relates to the technical field of machine tool control. The method comprises the following steps: connecting a control terminal of a shaping machine tool, and outputting machine tool cutter control parameters and a machining reference surface; clamping force uniform constraint is conducted on a machine tool clamping part, and multiple sets of candidate clamping parameters are output; optimizing the plurality of groups of candidate clamping parameters to generate a plurality of groups of optimized candidate clamping parameters; determining a preset vibration characteristic threshold value of the to-be-shaped workpiece; and carrying out workpiece vibration simulation during machining, screening the multiple groups of optimized candidate clamping parameters by taking a preset vibration characteristic threshold value as a constraint, generating an optimal clamping parameter, and controlling a machine tool clamping part. The technical problem that in the prior art, the machining precision is reduced due to unstable clamping in the workpiece shaping machining process is solved, and the technical effect of improving the machining precision is achieved by accurately controlling the clamping component.
Owner:NANTONG SHUANGYAO PRESSING CO LTD

Forging forming load balancing method

The forging forming load balancing method comprises a rear beam, a rear cylinder, a pull rod, a nut, a machine body and a die, the rear beam and the machine body are fixed through the pull rod, the rear cylinder is installed in the rear beam, a piston rod is arranged in the rear cylinder, an extrusion rod is arranged on the piston rod, and the die is directly connected with the rear beam through the pull rod and the nut. A closed inner stress structure is formed between the mold and the rear beam, so that stress balance between the mold and the rear beam is achieved; the mold has the beneficial effects that 1, the mold is connected with the rear beam through the pull rod and the nut to form a closed inner stress frame, and the stress scheme is simple in structure and low in cost; external supporting force for stress balance of the mold is converted into internal acting force between the mold and the rear beam, and the rigidity and reliability of the structure are improved;
Owner:HUZHOU MACHINE TOOL WORKS

Tamping machine for slope construction of water conservancy dam body

The utility model belongs to the field of slope construction of water conservancy dam bodies, and discloses a tamping machine for slope construction of a water conservancy dam body, which comprises a main machine device for hammering and leveling the slope of the water conservancy dam body, and an auxiliary device for supporting and assisting movement along the slope of the water conservancy dam body, one side of the auxiliary device is provided with a limiting device used for moving along the top face of the water conservancy dam body for auxiliary positioning. The host device is installed in the middle of the auxiliary device. The auxiliary device comprises a supporting assembly, four rollers are evenly installed at the four corners of the bottom of the supporting assembly, and a connecting ring is arranged on one side of the supporting assembly. The limiting device comprises a walking assembly, a weight box is installed on the walking assembly, and a pulling assembly is arranged in front of the weight box. According to the tamping machine for construction of the slope of the water conservancy dam body, due to the arrangement of steel cable pulling and auxiliary positioning, stress balance is increased, rollover is avoided, and the stability of tamping operation is improved; and the position is longitudinally adjusted along the slope of the water conservancy dam body through pulling of the steel cable, so that the tamping positioning accuracy is improved.
Owner:LINLONG CONSTRUCTION DEVELOPMENT CO LTD

Special-shaped centrifugal device damping mechanism and design method thereof

PendingCN122273697AShear modulusDynamic balance
This invention discloses a vibration damping mechanism for an irregularly shaped centrifuge device and its design method. The design method includes: establishing two balance reference planes corresponding to the upper and lower surfaces of the rotating module, respectively, and calculating the mass of the counterweight using the inertial force balance formula; determining the model of the vibration damping support based on the ratio of the interference frequency of the irregularly shaped centrifuge device to the natural frequency of the vibration damping mechanism being greater than a certain threshold; calculating the radial wall thickness of the suspended vibration damping sleeve based on the shear modulus of the material being prepared, and determining the axial length and outer diameter of the suspended vibration damping sleeve based on its installation inner diameter, thus obtaining the design parameters of the suspended vibration damping sleeve; after the vibration damping mechanism is assembled onto the irregularly shaped centrifuge device, using a dynamic balancing analyzer to test the vibration of the irregularly shaped centrifuge device at its rated speed to confirm the dynamic balancing effect. The design method of this invention is easier to operate and select, and through dynamic balancing verification analysis, it can effectively ensure the vibration damping and suppression effect of the vibration damping mechanism.
Owner:SUZHOU INST OF MEDICAL ENG CHINESE ACAD OF SCI ZHENGZHOU INST OF ENG TECH

A flexible welding and on-line monitoring integrated station for a vehicle body covering

This invention relates to the field of flexible welding technology for vehicle bodies, specifically to an integrated workstation for flexible welding and online monitoring of vehicle body panels. The workstation includes an operating table and a fixing assembly. The fixing assembly includes a column, a rotating base, a telescopic rod, clamps, and a flipping mechanism. The column is detachably connected to the operating table. To improve the fit between the clamp and the weldment, and to facilitate adjustment and adaptation to different vehicle body panels, this invention utilizes a multi-level adjustable structure. This allows for rapid changes in clamping orientation, opening range, and clamping angle, thus adapting to vehicle body panels of different heights and bending directions. Furthermore, the flexibly adjustable clamp structure and adaptive jaw design ensure that the clamp remains in close contact with the surface of the weldment. The clamp base plate can be precisely adjusted to maintain a perpendicular position to the weldment's cut surface, significantly improving the fit and force balance between the clamp and the weldment, and preventing welding deformation due to unstable clamping or uneven force.
Owner:KUNSHAN TIANSHENG AUTO PARTS CO LTD

Roller taper grinding method for planetary roller screw mechanism

ActiveUS12691546B2Roller screwForce balance equation
Disclosed is a roller taper grinding method for a planetary roller screw mechanism. The method includes steps as follows: step 1: determining basic parameters and a bearing capacity of a planetary roller screw mechanism to be machined; step 2: establishing deformation and force balance equations of the planetary roller screw mechanism according to the basic parameters and the bearing capacity of the planetary roller screw mechanism determined in step 1; step 3: iteratively computing an optimal grinding taper angle of roller grinding according to the deformation and force balance equations established in step 2; step 4: determining process parameters of roller grinding; and step 5: grinding a roller taper of the planetary roller screw mechanism by a machine tool according to the process parameters determined in step 4.
Owner:CHONGQING UNIV

Seat plate lifting adjusting mechanism

The utility model belongs to the technical field of seat accessories, and provides a seat plate lifting adjusting mechanism which comprises a self-powered supporting rod and a locking assembly, and the self-powered supporting rod comprises a telescopic rod and a rod sleeve arranged on the outer surface of the telescopic rod in a sleeving mode. The locking assembly comprises a limiting rod parallel to the telescopic rod, a limiting sleeve in sliding fit with the limiting rod and a clamping piece arranged in the limiting sleeve, the rod sleeve is connected with the seat plate, the limiting sleeve is fixed to one side of the rod sleeve, the inner wall of the limiting sleeve is provided with a containing groove used for containing the clamping piece, and the clamping piece is matched with the limiting sleeve in a telescopic mode. A plurality of clamping grooves corresponding to the clamping pieces are formed in the surface of the limiting rod in the axial direction at intervals. According to the adjusting mechanism, the self-powered supporting rod is used as a power source for lifting of the seat plate, the limiting rod is arranged on one side of the self-powered supporting rod, the limiting sleeve in sliding fit with the limiting rod is arranged on the rod sleeve, the limiting sleeve synchronously lifts along with the rod sleeve, and the limiting rod and the limiting sleeve share and support the seat plate for the self-powered supporting rod, so that stress is balanced during lifting and sitting of the seat plate; the stability is higher.
Owner:STUFF MEDICAL TECHNOLOGY (FOSHAN) CO LTD

Wafer bearing device and semiconductor processing equipment

The invention provides a wafer bearing device and semiconductor processing equipment, and relates to the technical field of semiconductor equipment, and the wafer bearing device comprises a wafer base station which is provided with a plurality of base station through holes in the thickness direction; the supporting frame is arranged below the wafer base station, and a reserved space is formed between the inner peripheral walls of the supporting frame; the lifting mechanism comprises a plurality of lifting assemblies, and the lifting assemblies are in one-to-one correspondence with the base station through holes; one end of each lifting assembly is connected to the supporting frame, and the other end of each lifting assembly extends into the corresponding base station through hole; the driving guide mechanism is arranged between the supporting frame and the wafer base station, and the driving guide mechanism comprises a driving assembly and at least one guide assembly; the driving assemblies and the guiding assemblies are evenly distributed in the same circumferential direction of the supporting frame. The driving guide mechanism forms a circumferential force balance system through the uniform distribution of the driving assembly and the guide assembly, and effectively avoids the inclination and shaking phenomena generated in the lifting process of the support frame, thereby guaranteeing the verticality and stability of wafer lifting.
Owner:JIANGSU ALPHA-SEMICON EQUIP CO LTD

Self-adjusting overflow weir service gate

The invention discloses a self-adjusting overflow weir service gate which comprises at least two sets of mounting plates and a valve, the two sets of mounting plates are symmetrically and fixedly mounted on the two opposite sides of the inner wall of an overflow weir, the valve is rotationally connected to the position between the two sets of mounting plates through a connecting shaft, and the axis of the connecting shaft extends in the width direction of the overflow weir; and the supporting piece is arranged in the overflow weir. Manual operation or electric driving is not needed, automatic adjustment of the opening degree of the gate is achieved only through the synergistic effect of water flow impact force, balance weight gravity and spring elastic force, the gate is particularly suitable for remote areas and severe hydrological environments, the operation stability is remarkably improved, locking and unlocking are triggered through the floating piece at the high water level, and the angle and length are adjusted through the supporting piece in a self-adaptive mode; it is ensured that the valve can be in a force balance stable state under different water levels, and valve resetting can be achieved through the balance weight piece.
Owner:SICHUAN HUANENG TAIPING YI HYDROPOWER CO LTD

A winding device for steel wire mesh reinforced plastic composite pipe

This invention discloses a winding device for steel wire mesh reinforced plastic composite pipe, belonging to the field of composite pipe production technology. It includes: a mounting frame with a central hole for the pipe to pass through; a drive mechanism mounted on the mounting frame; a front wire feeding mechanism and a rear wire feeding mechanism, each including a turntable and at least one set of wire storage trays mounted on the turntable. The drive mechanism is simultaneously linked to both turntables and can drive both turntables to rotate. During this time, each of the wire storage trays performs a wire feeding action, and the steel wire is guided to the surface of the pipe. As the pipe continues to move forward, the synchronous wire feeding of the wire storage trays and the configuration of the left and right winding devices form a steel wire mesh composite reinforcement layer. By setting the front and rear wire feeding mechanisms on the front and rear sides of the mounting frame respectively, the weight of the winding device is evenly distributed on both sides of the mounting frame, forming a force balance state and increasing the load-bearing capacity of the turntable, avoiding the requirement for extremely high overall structural strength due to unilateral force.
Owner:NINGBO FANGLI TECH

Abnormality detection method and device, unmanned equipment and storage medium

The invention relates to the technical field of unmanned equipment, and provides an anomaly detection method and device, unmanned equipment and a storage medium, a throwing disc is driven to swing from a reference position to one side, when the throwing disc swings to a buffer assembly to achieve force balance, the swinging speed of the throwing disc is obtained, and a throwing disc sowing mechanism is judged based on the swinging angle; therefore, the abnormity detection of the throwing disc sowing mechanism can be automatically completed without dismounting any structural member, the problems that the manual maintenance efficiency is low and the accuracy cannot be guaranteed are solved, and the problems that the sowing operation efficiency of unmanned equipment is influenced and even the sowing operation cannot be carried out due to the abnormity of the throwing disc sowing mechanism are effectively avoided.
Owner:GUANGZHOU XAIRCRAFT TECH CO LTD

A force balance control method using a six-dimensional active cellular micro-force sensor

This invention discloses a force balance control method for a six-dimensional active cellular micro-force sensor. The micro-force sensor includes a probe, a moving platform, a base, and six measurement branches connecting the moving platform and the base. Each measurement branch consists of a flexible beam, a sensing layer, and a driving layer. The method includes: when the probe at the end of the micro-force sensor is subjected to an external measuring force, the flexible beam deforms accordingly; the real-time pose of the moving platform is measured by the sensing layer of each measurement branch; the difference between the real-time pose and the desired zero pose is used to obtain an error signal, which is then fed into a robust sliding mode predictive controller to generate a corresponding control law; the control law then passes through a damping compensator and a decoupler to obtain a control input voltage signal, which is applied to the driving layer. Under the voltage, the driving layer undergoes bending deformation, causing the moving platform pose to return to the desired equilibrium position. This invention effectively solves the problem of complex lumped interference and achieves the goal of fast response, strong robustness, and high stability force balance control.
Owner:NANJING UNIV OF INFORMATION SCI & TECH

Adjustable support

The invention provides an adjustable support. The adjustable support comprises a base, a force application part and a balance assembly, the balance assembly comprises a plurality of elastic parts and a transmission mechanism, the transmission mechanism is functionally coupled to the base and can move relative to the base, the elastic parts comprise the first elastic part and the second elastic part, and the force application part is used for applying force to the first elastic part. Each of the plurality of elastic pieces can apply a corresponding elastic acting force to the transmission mechanism; the force applying piece can apply load acting force to the transmission mechanism, and when the force applying piece is operated, the force applying piece or the elastic pieces drive the transmission mechanism to move to a target position; when the transmission mechanism is located at the target position, the elastic acting force and the load acting force are balanced, so that the transmission mechanism and the force application piece are in a stress balance state. The adjustable support can solve the problems that a constant force elastic assembly of an existing adjustable support is large in size, large in occupied space and high in cost.
Owner:NINGBO TUOTUO RIVER DESIGN CO

A rope-connected parallel support device and test system for wind tunnel dynamic testing of a rotating projectile model

This invention discloses a rope-connected parallel support device and testing system for wind tunnel dynamic testing of a rotating projectile model. The support device includes a support assembly and a traction assembly. The rotating projectile model consists of a front part and a rear part connected as a single unit via connectors. The front end of a force balance in the support assembly is rotatably connected to the rotating projectile model via a front conical sleeve and a first bearing. The rear end of the force balance is connected to a reverse-locking sleeve via a rear conical sleeve and a second bearing. The reverse-locking sleeve is then connected to the front traction component, while the rear conical sleeve is connected to the tail support component. This support device uses the traction assembly to pull the front traction component and tail support rod of the rotating projectile model, controlling the extension and retraction of the traction cable. The rotating projectile model can achieve multi-angle coupled motions of precession, nutation, and spin.
Owner:XIAMEN UNIV

A multi-section strain balance assembly integrated into the object

This invention discloses a multi-section strain balance assembly integrated into an object, belonging to the field of hydrodynamic testing force measurement technology. It addresses the problems of traditional force balances, such as the need to disassemble the test model, numerous connection points, large installation errors, limited available force measurement sections, susceptibility to flow field interference, and difficulty in accurately measuring strain in thick-walled models. The balance assembly uses a hollow cylindrical section as the main body of the test substrate, with multiple sets of force measurement sections spaced along the substrate's axial direction. Each force measurement section is formed by thinning and slotting / perforating the inner and outer surfaces of the substrate to create load-bearing columns. Strain gauges for acquiring strain signals are attached to the inner and outer surfaces of these columns, enabling multi-dimensional force load measurement. The force measurement sections and the test substrate are integrally formed, allowing for flexible adjustment of the number of load-bearing columns. A single set of force measurement sections can be used independently as a multi-dimensional force balance. This invention achieves simultaneous multi-section force measurement without compromising the integrity of the model, balancing structural stiffness and force measurement sensitivity, significantly improving measurement accuracy, testing efficiency, and versatility.
Owner:TAIHU LAB OF DEEPSEA TECH SCI +1

A device for detecting the adhesion of ship paint

The present invention relates to the technical field of detection devices, and particularly relates to a detection device for the adhesion of a ship's paint surface. A detection device for the adhesion of a ship's paint surface includes an abutting chassis and a force balance mechanism. The abutting chassis includes a sticking plate and a guiding plate that are concentrically arranged. The force balance mechanism includes a balancing component and an adjusting component. The balancing component includes a first connecting rope and a second connecting rope. When the connecting pipe is inclined relative to the housing, due to the fact that the tension on the same rope is consistent, the tensions of the two ends of the first connecting rope on the sticking plate are consistent, and the tensions of the two ends of the second connecting rope on the sticking plate are consistent. By means of the adjusting component, the magnitudes of the forces on the first connecting rope and the second connecting rope are made consistent, and the forces exerted by the first connecting rope and the second connecting rope on the sticking plate are consistent, preventing one side of the sticking plate from being lifted. The present invention provides a detection device for the adhesion of a ship's paint surface to solve the problem that in the prior art, when the hull is pulled apart, one side of the paint surface is easily lifted, resulting in inaccurate detection results.
Owner:DEZHOU LUOMI MASCH TOOL CO LTD

A mold insert vertical pulling device without lateral force

The present application relates to hoisting equipment technical field, specifically, a kind of mould insert vertical pulling device of lateral component force, including pulley and steel wire rope, it is characterized in that: the steel wire rope passes through pulley, pulley below is equipped with component force balance adjusting mechanism, the component force balance adjusting mechanism includes vertical rope and natural correction mark of drooping.Compared with prior art, through vertical rope and correction mark, the hoisting angle of crane can be calibrated, and the influence of lateral component force on hoisting piece when hoisting can be effectively reduced.
Owner:SHANGHAI YUNFEI IND & TRADING DEV CO LTD

Adjustable fixing clamp for welding metal parts

The utility model discloses an adjustable fixing clamp for welding metal parts, which belongs to the field of part welding clamps, a plurality of sleeves are embedded in a clamp cavity, openings of the sleeves are aligned with kidney-shaped holes and are fixed on corresponding movable clamps through second fasteners, an elastic abutting strip is arranged on the side wall of each sleeve, and the elastic abutting strips are fixed on the movable clamps through the second fasteners. And the elastic abutting strip abuts against the metal part to be welded. The adjusting screw rod is flexibly matched with the movable clamp kidney-shaped hole, accurate fine adjustment of the clamping position is achieved, the welding requirements of metal parts of multiple sizes and shapes are met, and the universality and adaptability of the clamp are improved. A fine adjustment mechanism ensures welding precision and reduces welding defects. The clamping force balance and stability are enhanced through triangular distribution and the L-shaped cross section design, and the anti-skid performance is improved through the anti-skid rubber sleeve. The C-shaped structure is tightly attached to the metal part, and the surface rubber strip protects the surface of the part. The sleeve and the elastic abutting strip are integrally designed, so that the compactness and durability of the structure are enhanced, and the assembly efficiency and the welding quality are improved.
Owner:JILIN TIANYI BUS EQUIPMENT CO LTD