39 results about "Load force" patented technology

The utility model relates to a logistics equipment technical field especially relates to a turnover mechanism, including conveying assembly and the frame of one side of conveying assembly, still include swing subassembly, swing board both ends are equipped with clamping assembly and counterweight subassembly respectively, drive subassembly is used for promoting swing board rotation to make clamping assembly overturn, limiting component is used for limiting clamping assembly, the utility model discloses two clamping air cylinders drive mobile seat linear movement along the branch board respectively, utilizes fixed base and mobile seat to form the clamping surface, realizes the clamping or loosening of goods, promotes swing board to rotate around the first pivot through drive subassembly, utilizes lever principle to realize the lifting overturn of clamping assembly, and counterweight subassembly offsets the load torque of clamping end, reduces the drive energy consumption.

The application provides a rudder engine load test device and relates to the technical field of ship rudder engines, and comprises a mounting device, a self-adaptive load mechanism, a transmission head, a fixing screw one, a clamping groove seat and a clamping groove. The application has the characteristics of reasonable and simple structure, low production cost and convenient installation. Without customizing a complex connection structure for different types of rudder engines, the device can be quickly connected with the rudder engine through simple assembly design, greatly improving the universality and test preparation efficiency of the device, and reducing the equipment investment and maintenance cost. The application realizes the self-adaptive adjustment function of the load, can dynamically change the hydraulic oil input flow according to the rotating state of the rudder engine, makes the load force accurately match the rudder engine operation process, avoids the load mutation problem of the traditional rigid load structure, and effectively improves the authenticity and reliability of the test data.

Device for actuating a brake, in particular for a mobile aid such as a rollator, comprising a handle area (10) movably arranged relative to a support element (20), a braking device (40) coupled to the handle area (10), and an elastic element (30), characterized in that the handle area (10) performs an elastic movement under the influence of the elastic element (30) when subjected to a load, in which forces acting on the handle area (10) are at least partially absorbed by a spring action, and in that, depending on the load on the handle area (10), a force is transmitted via a coupling (50) to the braking device (40), thereby generating or increasing a braking effect, wherein the elastic movement and the braking effect can occur at least sectionally simultaneously and / or successively.

The application discloses a kind of cylinder spinning machine detection control method and system, belong to spinning machine technical field, solve when high-precision thin-walled part batch production is carried out after spinning machine long time work, the dynamic gap change caused by the static compensation algorithm of numerical control system because unable to match guide rail wear, and the illusion of no-load detection qualified covers the commutation point trajectory step and force-position coupling effect caused by insufficient compensation under heavy load, finally lead to the problem of part because micron level profile distortion and scrap.By real-time acquisition of feed shaft operation data and observation external load force, residual gap error is captured when detecting commutation event, wear-load model parameters are identified online using the error, and compensation value is dynamically calculated based on the identification results and current load to correct the position command at commutation.Finally, the compensation effect is evaluated and new data is fed back to the model to realize adaptive closed-loop control.

A high-stability controllable testing device and method for the low-speed stability performance of hydraulic rotary actuators. The testing device comprises a mechanical system, a flow feedback system and a load feedback system, wherein the mechanical system converts a loading force of a hydraulic cylinder (1) into a loading torque, which is transmitted to a component (9) under test by means of a torque sensor (8); the load feedback system comprises the torque sensor (8) and a displacement sensor (3); the torque sensor (8) measures a feedback signal of a load torque applied to the component (9) under test, and feeds the signal back and controls the loading force applied by the hydraulic cylinder; the displacement sensor (3) is configured to measure the displacement of the hydraulic cylinder, and a limit switch is designed to control a stroke of the hydraulic cylinder; and the flow feedback system determines a desired flow rate and an incremental flow rate on the basis of the flow rates at an oil inlet and outlet, coarse adjustment is performed on hydraulic flow provided by the hydraulic cylinder, and then fine adjustment is performed on the hydraulic flow on the basis of the desired flow rate. The two-stage flow regulation of the testing device and method can greatly improve the stability of both the load torque and input flow, thereby ensuring accurate measurement of the stability of high-torque ultra-low-speed hydraulic rotary actuators.

This invention discloses an enhanced stability suction-type shelf, comprising a shelf body, a mounting mechanism, and a support arm. The mounting mechanism includes a flexible bottom layer, a middle layer, and a top layer arranged sequentially from the supporting surface outwards, with at least one suction cup on the back of the flexible bottom layer. The mounting mechanism also includes a locking assembly. The suction cup contains a suction status indicator structure. This invention actively and effectively resists the warping of the mounting plate ends caused by load torque, solving the problem of progressive failure of suction cup fixing devices due to edge air leakage. The integrated suction status indicator structure inside the suction cup converts the invisible negative pressure decay process into an intuitive color signal, allowing users to tighten it in time before loosening or falling.

The utility model relates to a paper box stacking accumulation wheel conveying device belongs to paper box stacking technical field, this paper box stacking accumulation wheel conveying device, including support placement subassembly, the inside installation of support placement subassembly has a plurality of accumulation wheel components, the utility model discloses the structural design of accumulation wheel component can realize the adjustment function to the friction torque of friction plate, realizes the rotation of threaded adjusting sleeve block outside the installing rod, and then realizes the compression operation of compression spring, at this moment, the elastic force of compression spring can also push the belt and drive the accumulation wheel to move outside the installing rod to realize the compression operation of friction plate, through the spring compression force of setting, thereby can control the preset friction torque, so that the friction torque can be slightly greater than the load torque, through the structural design of this part can reach conveying load, also can reduce the rapid wear phenomenon of friction plate because of excessive pressure, and further can reach the function of flexible accumulation.

This application relates to a split-type vibratory slide table for linear friction welding equipment, comprising an upper slide table and a lower slide table; the upper slide table and the lower slide table are connected by a long blade clamp; the end face distance between the upper slide table and the lower slide table is greater than the height of the long blade; wherein, when the long blade clamp is installed, the long blade is located between the upper slide table and the lower slide table, and the length of the long blade is greater than the length of the long blade clamp. This application can reduce the overturning torque, improve the load force on the guide rail and guide rail slider, and make the slide table movement more reliable, thereby enabling linear friction welding of long blades.

The application relates to the technical field of ship power positioning, and particularly discloses a ship power positioning control method and system suitable for diesel engine driving, which comprises the following steps: S1: acquiring environment data, calculating total environment load force, determining upper limit of propeller thrust and corresponding upper limit of diesel engine rotating speed; S2: determining lower limit of theoretical rotating speed of the diesel engine according to the upper limit of the diesel engine rotating speed, combining with the lowest stable rotating speed of the diesel engine, calculating lower limit of the diesel engine rotating speed and corresponding lower limit of the propeller thrust; S3: acquiring original thrust demand of the propeller, determining final thrust of the propeller according to the original thrust demand of the propeller, the upper limit of the propeller thrust and the lower limit of the propeller thrust, and driving the propeller through the diesel engine according to the final thrust of the propeller, so as to realize ship positioning control. The application can fully exert the large-thrust advantage of the diesel engine, avoid the defect of slow rotating speed adjustment, and balance the thrust size demand and response speed without changing hardware.

The present application relates to a kind of electric equipment power supply protection technical field, in particular to a kind of NFMC corrosion-resistant composite moulding color steel cable bridge.A kind of NFMC corrosion-resistant composite moulding color steel cable bridge, including bottom plate and being located at the side plate of bottom plate two sides, bottom plate and side plate integrated forming;The junction of bottom plate and side plate is equipped with angular boss;Angular boss and bottom plate, side plate integrated forming, to the inside of bottom plate and side plate protrude.Compared with prior art, the cable bridge of the present application saves raw material, improves bearing capacity, side plate and bottom plate integrated stamping, and angular boss is designed between side plate and bottom plate, and the torsional resistance between side plate and bottom plate is enhanced, and load stability is improved;Meanwhile, side plate reinforcing rib and rectangular boss are designed on side plate, the rigidity and overall bearing capacity of the whole bridge are improved, and the torsional resistance of side plate is enhanced;Bottom plate is designed with bottom plate reinforcing rib, and load force is enhanced.

There is described an electric power generating apparatus having: a free-piston linear expander having a moving shaft creating mechanical power; an electrical generator converting the mechanical power into electrical power; a variable frequency drive configured for applying an electromagnetic load force modifying the shaft's movement; and a controller communicatively coupled to the variable frequency drive, the controller configured to perform the steps of: receiving sensor data including a first shaft position value, a first shaft velocity value, and a first electromagnetic load force value; using a drive control module, determining, based on the sensor, a second electromagnetic load force value which when applied would cause a shaft velocity to gradually change to a second shaft velocity value, the second electromagnetic load force value and the second shaft velocity value causing an output power value to correspond to a desired output power value; and applying the second electromagnetic load force value.

This invention relates to the field of ship dynamic positioning technology, specifically disclosing a method and system for ship dynamic positioning control applicable to diesel engine-driven vessels. The method includes: S1: acquiring environmental data, calculating the total environmental load force, and determining the upper limit of the thruster and its corresponding upper limit of the diesel engine speed; S2: determining the lower limit of the theoretical diesel engine speed based on the upper limit of the diesel engine speed, and calculating the lower limit of the diesel engine speed and its corresponding lower limit of the thruster thrust based on the lowest stable diesel engine speed; S3: acquiring the initial thrust requirement of the thruster, determining the final thrust of the thruster based on the initial thrust requirement, the upper limit of the thruster thrust, and the lower limit of the thruster thrust, and driving the thruster through the diesel engine according to the final thrust of the thruster to achieve ship positioning control. This invention can fully utilize the high thrust advantage of diesel engines and avoid the shortcomings of slow speed adjustment, balancing thrust requirements and response speed without changing the hardware.

The application discloses a clamping locking device and a centrifugal force loading mechanism, and the device comprises a centrifugal force transmission upper joint, a centrifugal force transmission lower joint and a connecting assembly; wherein the centrifugal force transmission upper joint and the centrifugal force transmission lower joint are respectively arranged as semi-cylindrical structure joints, and are oppositely arranged in a top-down symmetrical mode and fixedly connected by the connecting assembly to form an integral cylindrical joint; both ends of the centrifugal force transmission upper joint and the centrifugal force transmission lower joint are respectively provided with stepped grooves, so that after the centrifugal force transmission upper joint and the centrifugal force transmission lower joint are oppositely mounted, both ends form stepped cylindrical cavities, a centrifugal force loading force bearing joint is mounted in one end of the stepped cylindrical cavity, and a loading end of a centrifugal force actuator is mounted in the other end of the stepped cylindrical cavity. The technical scheme provided by the application successfully solves the problem that the force bearing in the centrifugal force loading structure is connected by threads and is often broken due to fatigue; the main force bearing and transmission rely on a stepped structure and a pin shaft, the thread connection link in loading is eliminated, and the risk of thread connection fatigue fracture is avoided; the application can be referred to for implementation and modification in the case of fracture of thread force bearing components in other load loading.

This invention discloses a quasi-zero stiffness vibration isolator, relating to the field of vibration isolation technology. A positive stiffness mechanism is disposed between a platform and a base, supporting the platform under external load and applying a restoring force opposite to and positively correlated with the platform's displacement direction when the platform displaces. A negative stiffness mechanism includes a mover and several electro-permanent magnet units, fixedly mounted on the base. One end of the mover is fixedly connected to the platform. The positive stiffness mechanism, the mover, and all the electro-permanent magnet units are symmetrically arranged about a symmetrical centerline, which is collinear with the direction of the external load force. The other end of the mover has a gap with each electro-permanent magnet unit in a direction perpendicular to the symmetrical centerline. The electro-permanent magnet units generate a magnetic field and apply a magnetic force to the mover in the same direction as the mover's displacement. Through the parallel connection of the positive and negative stiffness mechanisms, the vibration isolator achieves quasi-zero stiffness characteristics near its equilibrium position, thereby achieving low-frequency vibration isolation. This device can improve the reliability of the vibration isolator and extend its service life.

This utility model discloses an adaptive shim for a floating slab vibration isolator, belonging to the field of rail transit engineering technology. It includes a vibration isolator assembly and a limiting structure for restricting the shim height. The vibration isolator assembly has a shim body at its top, and a placement groove is formed at the bottom of the shim body. A hydraulic cylinder for adjusting the shim height is installed in the inner cavity of the placement groove. The piston end of the hydraulic cylinder is in contact with the surface of the vibration isolator assembly. An oil injection nozzle is provided at the top of the hydraulic cylinder, and a through hole is formed at the top of the shim body. The position of the through hole corresponds to the position of the oil injection nozzle. Through the cooperation of the hydraulic cylinder and the piston end, the elevation, force magnitude, and uniform force distribution of the slab can be adjusted. This solution avoids the load force differences caused by the thickness gradient of the slab during adjustment, achieving precise adjustment of the floating slab.

The application provides a large and super-heavy vibration system lateral vibration anti-overturning device based on a linear bearing, which is installed at a position of a vibration tool and a butt joint surface of a product to be tested, and comprises a bearing connecting device, a bearing and an auxiliary supporting device; the bearing connecting device comprises a bearing connecting plate and a bearing support which are connected with a bearing guide light pole; the bearing connecting plate is connected with the vibration tool and the bearing guide light pole, and transmits an overturning torque to the bearing guide light pole; the bearing support positions the bearing and transmits a load force to the ground through the auxiliary supporting device. The application can effectively enhance the lateral anti-overturning capacity of the vibration test system, and ensure the loading and test safety of high-level tests.

This utility model discloses a stability testing device for a strain sensor, comprising a fixed frame, a loading member, and a base plate. The top plate of the fixed frame has downward-facing vertical walls at both ends. The base plate is slidably or fixedly disposed between the two vertical walls and is located parallel to the bottom plate. A loading member is disposed on the top plate of the fixed frame, facing the base plate. The loading member applies different intensities of loading force to the sensor under test, which is horizontally placed on the base plate, in a direction perpendicular to the base plate. This utility model is applicable to strain sensors subjected to force, enabling stability testing of the sensor under different loading forces.

The application provides a door lock mechanism and a dishwasher adopting the same. The door lock mechanism comprises an execution mechanism and a trigger mechanism cooperating with the execution mechanism. The execution mechanism comprises a small load mechanism, a large load mechanism, a locking body and a switching device. The trigger mechanism comprises a driving mechanism, a push rod and a latch. The driving mechanism is connected to the push rod and can drive the push rod to move. The front end of the push rod is provided with the latch which cooperates with the locking body. The small load mechanism and the large load mechanism act on the locking body to provide the locking force of the latch. The switching device changes the acting mode of the small load mechanism and the large load mechanism on the locking body to realize the size switching of the locking force of the latch. The small load mechanism and the large load mechanism act on the locking body through the switching device, the opening and closing doors and the locking state have different load forces, the operation feeling is optimized, the fingers and other parts of the operator are prevented from being clamped when the door is automatically closed, the operator is protected, and the safety hazard is eliminated.

The present invention discloses a disassembly tool for a load limiting snap ring on an aircraft. A surrounding hole is provided in the middle of the locking base body, a notch is provided on one side surface, and a first threaded hole and a first through hole are provided on the side surface of the notch; the connecting base is fixed under the locking base body and a second threaded hole is provided in the middle; the manual driving seat includes a manual turntable and a first sleeve provided on the manual turntable, a second through hole is provided in the middle, an external thread is provided on the outer wall of the first sleeve, and the first sleeve is threadedly connected to the second threaded hole through the external thread; the lever includes a cylinder and a second sleeve, the second sleeve penetrates into the first sleeve, a third through hole is provided in the middle of the lever, a circular reserved groove is provided at the lower end of the third through hole, and a notch is provided on the side of the cylinder; a screw rod is provided at the distal end of the locking handle, the screw rod is connected to both sides of the notch, and by rotating the screw rod through the locking handle, the surrounding hole can be reduced so that the locking base body tightly holds the valve shaft of the aircraft. The present invention can efficiently disassemble the limiting snap ring under the load force.

This invention provides a dynamic performance testing system for equipment based on turntable servo control and load torque simulation. The system includes: a simulation and command generation module for running a semi-physical simulation model of the equipment under test (BT), determining the expected motion trajectory of the BT in a virtual combat environment, and generating disturbance torque commands and motion control commands; a data communication and control module for sending motion control commands to each rotary axis of the five-axis turntable to control the BT to reproduce the expected motion trajectory; a load torque application module for sending disturbance torque commands to a load torque simulator and applying disturbance torques of air resistance and mechanical friction to the rotary axes, and real-time monitoring of the actual motion posture data of the BT under the disturbance torque; and a performance testing module for comparing and analyzing the actual motion posture data with the expected motion trajectory to obtain the performance parameters of the BT. This significantly improves the realism and accuracy of equipment dynamic performance testing and evaluation.

The application relates to a loading force inspection method and system for a chassis part bench endurance test, a virtual model of a test sample, a clamp and a bench test loader is established according to a test working condition, test load is loaded on the virtual model, a virtual maximum principal strain value of a measuring point is obtained, and the virtual maximum principal strain value is used as a standard for subsequent judgment; then a strain gauge is attached to the test sample to perform an actual test, so as to obtain a real maximum principal strain value; the actual measured data and the standard are analyzed to verify whether the clamp and the bench test loader are abnormal, in addition, the method can judge whether the loading force is normal by setting the strain gauge to obtain the strain value of the measuring point, has the characteristics of low use cost, the strain gauge is directly pasted and can be clamped with the test sample, the loading force borne by the test sample in the endurance test can be monitored in real time, and the method is suitable for endurance test loading force inspection of different test samples.

The embodiment of the present application provides a method and system for testing the pre-load force of a shock absorber, aiming at effectively improving the rationality of the manufacturing process of the shock absorber and the reliability of the quality of the shock absorber. The method comprises the following steps: measuring a cutting force suffered by the shock absorber when a position below a guide of the shock absorber is cut by an external device; measuring a second sealing force suffered by the shock absorber when a first sealing force is applied to an outer cylinder of the shock absorber; obtaining a pre-load force of the shock absorber according to the cutting force, the first sealing force and the second sealing force; and determining whether the first sealing force meets the sealing requirement of the shock absorber based on the pre-load force.

The application relates to the technical field of a press machine workbench, and discloses an anti-unbalanced load workbench for a press machine, which comprises a moving base, a ground track and a table top, further comprises four cylinders, each of which is provided with a rigid connecting mechanism, the rigid connecting mechanism is arranged at the four corners of the moving base through the cylinders, the rigid connecting mechanism adopts a threaded column provided as a support, the upper end of the threaded column is fixedly connected with the lower end of the table top through a spherical hinge, and the rigid connecting mechanism adjusts the inclination of the table top through adjustable height adjustment, so that the workbench can support the die from multiple directions and resist the unbalanced load force generated when stamping workpieces. The anti-unbalanced load workbench for the press machine can actively eliminate the stamping unbalanced load moment, realizes the uniform load support of the workbench under the premise of not greatly increasing the equipment weight and cost, and significantly improves the die life, part precision and equipment stability.

The present application relates to a kind of control method of three-axis clamping adaptive mechanical arm, it is related to intelligent control field, set up the synchronous belt elastic deformation compensation formula containing variable stiffness coefficient, load force and effective transmission length to improve moving precision;X axis, Y axis and Z axis single-axis movement are all set S type acceleration and deceleration movement, to reduce the movement impact when moving fragile product;When laser range finder detects that single-axis actual position and theoretical position deviation is greater than or equal to 0.01mm, trigger compensation mechanism;Deviation is less than 0.01mm, do not compensate;X axis, Y axis and Z axis are set decoupling matrix to correct the coupling error generated when three-axis simultaneously moves, set X axis, Y axis and Z axis to reach target coordinate position time are same to realize synchronous arrival, the present application has the advantages that fragile container such as beaker and experimental product with dangerousness can be transported with low motion noise and high precision, can be effectively applied to experimental operation process in laboratory environment.

This utility model belongs to the field of push rod technology, specifically disclosing a weather-resistant precision photothermal push rod, including a housing, a lead screw rotatably connected to the output end of the housing, a worm gear sleeved on the part of the lead screw inside the housing, a worm rotatably connected inside the housing, the worm meshing with the worm gear, an inner tube and an outer tube sequentially sleeved on the lead screw from the inside to the outside, the lead screw being connected to the inner tube through a slide block, the inner tube passing through a fixed seat at the top of the outer tube and dynamically sealed to the fixed seat, an anti-loosening component and a bushing assembly sequentially fixedly sleeved on the lead screw along the extension direction of the inner tube, the bushing assembly being stacked on the anti-loosening component, a bearing seat threadedly fixedly connected to the outer tube at a position opposite to the bushing assembly, the bearing seat being sleeved outside the bushing assembly and its two ends being rotatably connected to the bushing assembly through thrust bearings respectively. This utility model uses a worm gear to drive the lead screw to rotate, combined with a dynamic sealing structure and a load force distribution structure, improving the motion accuracy, reliability and service life of the push rod in harsh environments.

The utility model is suitable for the technical field of cantilever crane, provides a fixed cantilerer crane, include: having support column and connecting column's installation column, rotary installation on the connecting column's crosspiece, be provided with on the crosspiece for hoisting the hoisting mechanism of article is hoisted, set up on the crosspiece and the connecting column, for driving the rotation mechanism of the article hoisted on the crosspiece, assemble on the crosspiece for the lubricating mechanism of lubricating the gear wheel set up on the rotation mechanism. The fixed cantilever crane provided by the scheme can monitor the load force received by the hoisted goods, thereby ensuring that the hoisted goods are within the safe bearing range, improving the safety during hoisting work, and the gear wheel can be lubricated regularly, effectively reducing the friction during use of the gear wheel, thereby reducing the resistance during overall operation, and significantly improving the flexibility of the fixed cantilever crane during use.