38 results about "Force output" patented technology

The utility model discloses a four-force-arm multi-track strength training device which comprises a machine frame. The four adjusting assemblies are located on the same side of the rack and arranged on the periphery of the rack, each adjusting assembly comprises an adjusting base and an output rod, the adjusting bases are rotationally connected to the rack in the horizontal direction, and the output rods are rotationally connected to the adjusting bases in the vertical direction; the four stretching parts are connected with the adjusting assemblies in a one-to-one correspondence mode, each stretching part comprises a pulling block, the pulling blocks are connected to the outer side of the output rod, and the pulling blocks are suitable for being pulled outwards; and the resistance output module is connected to the rack, and the resistance output module is used for outputting load force to the pulling block. Two additional force arms and a flexible multi-angle adjusting mechanism are added, the types of training actions are greatly enriched, the adaptability and expansibility of the equipment are improved, a user can do diversified and personalized exercise according to different muscle groups, operation is easy, convenient and visual, the equipment is suitable for people of various body types and training levels, and the practicability is high. And the fitness experience and the training effect are obviously enhanced.

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.

The objective is to provide a lid opening / closing actuator that reduces the dimensions of the drive force output section in the direction of the output shaft. [Solution] The present invention comprises a drive force output unit that outputs driving force to the outside, and a housing, wherein the drive force output unit has a main shaft portion whose movement relative to the housing is restricted and which is rotatable, an output shaft portion that moves in the direction of the central axis with the rotation, and a guide portion that guides the output shaft portion, wherein the main shaft portion has an insertion portion into which the insertion portion is inserted and which has a female thread on its inner circumferential surface, and a shaft-side engaging portion that engages with the guide portion on the outside of the insertion portion, wherein the guide portion has a guide-side engaging portion around the output shaft portion that engages with the shaft-side engaging portion, and one of the shaft-side engaging portion and the guide-side engaging portion is an engaging projection and the other is an engaging groove, and the engaging groove has a straight portion extending in the direction of the central axis and a helical portion extending in the helical direction. It is characterized by the following:

The invention discloses a self-reconfiguration constant force arm and a self-reconfiguration variable rigidity constant force auxiliary exoskeleton, and relates to the technical field of wearable exoskeleton robot driving. Comprising a large arm shell, a small arm, an adjusting motor, a gear, a linear groove cam provided with a plurality of linear grooves, a pulley adjusting assembly, a pre-tightening force adjusting assembly and the like. The second gear is provided with a plurality of guide grooves, and a pin shaft of the movable pulley correspondingly penetrates through the linear groove and the guide grooves. A controller is linked with an adjusting motor based on load pressure collected by a forearm pressure sensor, changes the rotation angle of a second gear through gear transmission, and is linked with movable pulleys to move in a linear groove under the guidance of a guide groove, so that the number of the movable pulleys entering an effective working state is changed, the joint rotation rigidity is improved, and the constant force output range is expanded. And meanwhile, the pre-tightening force adjusting assembly is linked to adjust the tightness of the rope, and the pre-tightening force within the target range is output. A fixed-configuration constant-force mechanism is converted into a variable-stiffness structure capable of being autonomously reconstructed, and wide-range accurate adjustment of constant-force output is achieved.

The invention relates to the technical field of drying tower rapping, in particular to a rapping air hammer for a conical wall of a drying tower, which realizes self-adaptive control of wall cleaning force through a feedback type adjusting mechanism. The core of the device is composed of a bidirectional moving seat, a force storage output seat, a feedback rod and a driven adjusting seat, compressed air is utilized to drive an air hammer seat to reciprocate, an equidistant arm drives a lifting hinge seat to lift periodically, the transmission ratio is adjusted by changing the cross position of an adjusting arm and the equidistant arm, and then the force storage stroke is changed. During advancing, the spring is reset to drive the impact seat to knock the tower wall. The innovation point is that the vibration feedback system is characterized in that vibration generated by impact is transmitted to a feedback rod through a driven adjusting seat, the mutual exclusion force of a movable magnet and a fixed magnet is superposed with the delayed reset characteristic of a damping spring, the vibration frequency is converted into accumulated displacement, the connecting position of an adjusting arm is automatically adjusted, and the knocking force is increased when many materials are adhered; when materials are few, force is reduced, and tower wall damage is avoided.

The invention belongs to the technical field of four-point bending testing, and discloses a rotary bending testing device which comprises a force arm rod perpendicular to the axis of a testing shaft, and the force arm rod transmits torque to the testing shaft; a servo actuator used for applying push-pull force is arranged at one end, far away from the test shaft, of the force arm rod, an output shaft of the servo actuator is connected with a force sensor, the other end of the force sensor is connected with an elastic connector, the elastic connector is connected with the force arm rod, and the direction of output force of the servo actuator is parallel to the axial direction of the test shaft. According to the invention, the structure complexity of the equipment is reduced, the loading torque can be adjusted randomly and accurately in real time, the deformation condition can be fed back in real time in the test process, and after the scheme is adopted, the operation vibration of the equipment can be effectively reduced, and the safety and the convenience of operators are improved.

The invention discloses a constant load supporting mechanism, a stirrer and a system, and the device comprises a fixed supporting device which is provided with a lifting device; the power output device is connected with a pressure output device through an adjusting device, a pressure adjusting piece is installed on the pressure output device, and the pressure output device is connected with the lifting device; wherein when the operation equipment is supported, the lifting device is installed below the operation equipment, and by presetting operation parameters of the power output device, the lifting device supports the operation equipment in a self-adaptive mode according to displacement changes of the operation equipment. According to the mechanism, the displacement problem between the supported mechanical equipment and the supporting device can be converted into the pressure problem, the height and the supporting force of the lifting device are adjusted in a self-adaptive mode according to the displacement change of the mechanical equipment, and the stability and the safety of the mechanical equipment under different working conditions are guaranteed; the defect of excessive support or incapability of supporting due to descending of a support foundation or frequent change of the position of a support object is overcome.

The invention provides a loading device and a loading system, and relates to the technical field of weighing. The loading device is provided with an output end and comprises a driving piece, an adapter piece and a traction piece, the adapter piece is provided with a rotating axis, the traction piece is arranged on the adapter piece and comprises a flexible traction part, the flexible traction part is provided with a fixed end and a free end, and the free end of the flexible traction part is arranged on the periphery of the adapter piece in a winding mode. The output end is arranged at the free end of the flexible traction part; and the driving piece is connected with the adapter piece, and the driving piece is used for driving the adapter piece to rotate around the rotating axis so as to wind or unwind the flexible traction part and further adjust the acting force output by the output end. The device can replace a weight for loading, can achieve loading of any target force value, can be suitable for calibration work of balances with different measuring ranges, and improves the loading precision and the working efficiency.

The present application relates to a kind of force standard and the force value measurement method using the force standard, force standard includes support, still include rotating cylinder sleeve and by respective corresponding first sealing ring and the upper and lower ends of rotating cylinder sleeve sealing cooperation first piston and second piston, first piston, second piston relative support rotation stop, first piston, second piston and rotating cylinder sleeve form piston cavity for filling liquid, force standard further include the pressure sensor connected with piston cavity, support or rotating cylinder sleeve is connected with the mounting arm of shaft line with rotating cylinder sleeve coaxial line arrangement on bearing, force measuring component is arranged between support and mounting arm, mounting arm is provided with the sleeve driving mechanism of transmission connection with rotating cylinder sleeve to drive rotating cylinder sleeve rotation.The present application solves the technical problem that the output force value of force output mechanism cannot be accurately measured due to the friction between cylinder body and piston not being considered in the prior art.

The invention provides a load-balanced large-scale structure attitude adjustment driving force distribution method, which specifically comprises the following steps: firstly, constructing an attitude adjustment mechanism accurate power model considering the friction force of a locator and the motion inertia so as to establish a constraint model between the attitude adjustment track and the attitude adjustment driving force of a large-scale structure; thirdly, constructing a positioner driving force optimization model by defining a driving shaft load coefficient, and performing assembly driving force optimization by adopting a penalty function method; and finally, fitting the discrete driving force of the driving shaft by adopting quintic polynomial fitting so as to obtain the real-time driving force of the attitude adjusting mechanism. The problem that part of driving shafts are overloaded in the posture adjusting and positioning process of a large structure is solved, the loads of all the driving shafts are balanced by reasonably distributing driving force output by different driving shafts, and the situation that part of drivers are overloaded is improved.

The application discloses an air rudder folding and unfolding gap detection device, which comprises a workbench (5), characterized in that a locking tool (3) is fixedly installed on the workbench (5), a constant force output device (7) is fixedly installed on the right side of the workbench (5) relative to the locking tool (3), and a distance sensor (2) is fixedly installed behind the locking tool (3); wherein the locking tool (3) comprises two identical locking tool structures (30), each locking tool structure (30) comprises a rudder shaft tool base (31) and a rudder shaft overhanging cylindrical clamping structure (32); the device and the processing method can accurately identify the highest point of the rudder surface change in the detection gap, directly display the final value of the folding and unfolding gap, improve the detection efficiency, and guarantee the correctness and stability of the result.

The invention discloses a rigid-flexible coupling series-parallel main manipulator which comprises a rigid series branch chain as a passive pose sensing branch chain, a flexible parallel mechanism as a force feedback execution branch chain and an operation handle, the operating handle is connected with the far ends of the eight flexible tendon ropes of the flexible parallel platform through the eight symmetrical anchor points, so that the operating handle, the rigid series branch chain and the eight flexible tendon ropes jointly form a rigid-flexible hybrid parallel constraint mechanism with nine branch chains, and structural support and pose recognition are provided through the rigid branch chains. Power interaction is provided through the flexible branch chains. The rigid-flexible coupling design is adopted, force can be directly transmitted to the operation end from the motor through the tendon rope, friction loss is reduced, and the force output efficiency is improved. A rigid branch chain is introduced into a rigid-flexible coupling design framework, so that the overall rigidity of the system is high, meanwhile, a force-position decoupling layout design is adopted, a positioning function is integrated on the rigid branch chain, and the positioning precision can be equivalent to the precision of a rigid structure.

A test system (100) includes a force sensor (102), a support (108), a sensor (124), and a controller (120). The force sensor (102) is configured to generate a force output (114) indicative of a force applied to the sensor (102) and includes an active side (116) and a fixed side (118). The support (108) is connected to the force sensor (102) and is configured to support a test sample. The sensor (124) is configured to generate a sensor output (122) indicative of a speed of the movable side (116) relative to the fixed side (118). The controller (120) is configured to receive the force output (114) and the sensor output (122), calculate a damping compensation based on the sensor output (122), a damping constant estimate associated with a motion of the sensor (102) and the support (108), and a secondary mass including a mass of the sensor (102) and the support (108), and generate a corrected force measurement based on the force output (114) and the damping compensation.

The application relates to a control method of a slipknot opening force, which comprises the following steps: inputting the Young's modulus, the wire diameter and the self-friction coefficient of a wire and the structure of a slipknot into a constructed calculation model of the slipknot opening force; and calculating the slipknot knotting force. The application can directly predict the size of the slipknot opening force through the process parameters of knotting the slipknot, and can perform inverse solution to prepare the slipknot with an arbitrary knotting force. Meanwhile, the application can realize the force output and measurement of any specified size by relying on the structure of the slipknot without depending on a sensor.

The invention relates to the technical field of engineering cost, in particular to a demonstration template for engineering cost. Comprising a bottom plate, moving wheels are arranged on the downward working face of the bottom plate, a supporting rod is arranged on the upward working face of the bottom plate, a rod body of the supporting rod is sleeved with a sleeve, a U-shaped frame is arranged on one side of the sleeve, a connecting pipe is movably placed on the inner side of the U-shaped frame, and a connecting shaft is arranged in a pipe body of the connecting pipe; the upper end and the lower end of the connecting shaft movably penetrate through the upper end and the lower end of the inner side of the U-shaped frame respectively, a demonstration template is arranged on one side of the connecting pipe, a motor is arranged on the upward working face of the bottom plate, a threaded shaft is arranged at the power output end of the motor, an adjusting pipe is arranged on one side of the sleeve, and the threaded shaft is sleeved with the adjusting pipe in a threaded mode. The teaching demonstration device has the beneficial effects that the demonstration template can be driven to perform height adjustment through the motor and the threaded shaft, and the demonstration template can perform multi-angle rotation through angle adjustment between the connecting pipe and the sleeve, so that watching and demonstration are facilitated.

The utility model discloses an empty oil pressure force multiplication output rotary chuck, including the chassis, through setting 15 degree taper in the thrust ring inner wall, setting 45 degree angle structure and the 22.5 degree taper conversion structure of annular groove setting in the slide sleeve inner wall top in the slide sleeve, constructs 15 degree self -locking angle + 45 degree thrust angle's force multiplication transmission system, under the same empty oil pressure pressure (such as 20kg / cm 2 )、Same oil cylinder area (thrust side piston area 117.75cm 2 ) is compared with traditional chuck, and the output clamping force promotes three times, and the design can realize high -strength clamping without increasing the oil cylinder size, can stably hold the heavy load workpiece (such as the shaft class spare of weight more than 50kg) of phi 68mm, and after clamping, realizes mechanical self -locking through 15 degree self -locking angle, even if empty oil pressure system pressure fluctuation or shutdown, still can keep stable clamping force, avoid workpiece loosening, guarantee the safety of heavy load processing, and also take into account the compact volume of chuck, adapts various specifications machine tool.

The invention discloses a two-way equal-force elastic executing element and a compensation device based on the element, the executing element comprises a cylinder body assembly, a stepped shaft-shaped pull rod, a piston assembly, a two-way valve and a valve core, the interior of a piston is divided into a plurality of air pressure cavities, buffering, pressure equalizing and pressure maintaining are achieved through the two-way valve, rigid impact is reduced, and the service life is prolonged. During working, the pull rod only bears tensile force or pressure at the same moment, and bidirectional equal-force output can be achieved under the working conditions of stretching and compressing. Based on the execution element, the invention further provides a wheel body eccentric rotation compensation device, a plane universal compensation device and a three-dimensional space universal compensation device, and passive self-adaptive compensation can be achieved in a radial plane, a horizontal plane or a three-dimensional space. The two-way elastic acting and dynamic compensation device is diversified in structural form, stable in stress, free of motion retardation, capable of being scaled in equal proportion, adaptive to various cavity sections, wide in application range and capable of meeting the requirements for two-way elastic acting and dynamic compensation in multiple scenes.

The invention discloses a locking device, and belongs to the technical field of medical instruments. According to the locking device, the sliding block reciprocates along the linear track, linear thrust is directly converted into rotating opening and closing of the clamping jaw through stable matching of the transmission face and the clamping jaw driving face, and therefore reliable clamping force output and angle control are achieved. According to the transmission mode, dynamic abrasion of sliding connection points in a traditional cam mechanism is reduced, structural stability and clamping reliability in long-term use are improved, meanwhile, the operation process is more direct and smoother, and accurate control is facilitated. The cooperation of the sliding part and the sliding groove has good guidance quality and constraint in the transmission process, shaking and uncertainty in the movement process are reduced, and the rigidity and movement precision of the whole structure are enhanced.

The present application relates to the field of robot technology, and more particularly to a rope-driven high-finger-tip-force high-joint-stiffness dexterous hand. The technical scheme comprises a forearm shell, a five-finger multi-joint skeleton, a plurality of actuator units arranged in the forearm shell, and a plurality of tendon ropes connecting the actuator units and the finger joints. An integrated mechanism is arranged between each two adjacent finger joints of the five-finger multi-joint skeleton. The present application realizes high finger-tip-force output, high joint stiffness, low transmission error, adaptive gripping and online health monitoring and analysis of the rope-driven dexterous hand without increasing the diameter of the tendon rope and the volume of the finger joint, through the integrated gear rolling joint, the embedded angle-dependent variable high-rope-drive tension amplification mechanism, the full-length fiber Bragg grating strain monitoring and the dual-mode redundant sensing.

The utility model provides a moment balance mechanism with constant force output, which relates to the technical field of constant force support and comprises an accommodating shell, a pushing shaft is slidably connected in the accommodating shell, the rear end of the pushing shaft is connected with a combination block, a support column is further arranged at the bottom of the accommodating shell, a constant force spring is connected onto the support column, and the constant force spring is connected onto the support column. The contraction end of the constant-force spring is detachably connected with the combination block, and the top of the containing shell is detachably connected with a protective cover, so that the problem that certain occasions need to provide constant supporting force to balance torque and reduce load is solved, and in the large-stroke displacement, the constant-force spring is arranged in the containing shell. If a common spring or tension spring provides supporting force, the elastic force change of the common spring or tension spring can bring adverse effects on an executing mechanism.

The application discloses a back-bending type cubic press and a top hammer position pressure dynamic adjusting method, relates to the technical field of superhard material synthesis equipment, and comprises the following parts: two groups of end face racks; four groups of side face racks, which are matched with the two groups of end face racks and jointly form the overall rack structure of the back-bending type cubic press; a displacement sensor, which is arranged at the middle part of the outer side of the end face rack and the side face rack and is used for collecting displacement data of the end face rack, the side face rack and a hydraulic cylinder; the hydraulic cylinder, which is arranged at the middle part of the inner side of the end face rack and the side face rack and provides hydraulic power output for the pressing operation of the back-bending type cubic press; and a hinge beam shape correcting mechanism, which is arranged at the outer side of the side face rack and is used for correcting the deformation of the side hinge beam of the side face rack. The beam body in the application adopts a unique back-bending type structure design, and a method for real-time and collaborative dynamic adjustment of the top hammer position and the applied pressure during the pressing process is provided, so that the beam body is always in the optimal stress state.

The utility model belongs to the field of power systems, and particularly relates to a labor-saving output mechanism based on an eccentric counterweight wheel, which comprises a bracket, a first power mechanism and a second power mechanism, in the first power mechanism, a first counterweight wheel keeps inertia under self weight after obtaining initial kinetic energy, a first transmission wheel is driven to transmit force outwards, the influence of generator resistance change on the rotating speed of a power machine is reduced, and the fuel efficiency is improved. The weight of the first and second counterweight wheels exceeds 1T, energy can be continued when the power machine stops, and power generation interruption is avoided. Contact points of the supporting wheels and the first counterweight wheel are arranged on the same side to facilitate connection with a power machine. The first transmission wheel and the second transmission wheel effectively support the second counterweight wheel, and the mechanism can be connected in series to increase torque. The second inner supporting wheel ensures stable operation of the second balance weight wheel, resonance can be avoided through multi-stage series connection, and the torque is increased. The anti-swing rolling shaft prevents swing and tremble, and the sealing cover isolates sundries to guarantee safety. The mechanism is suitable for the power generation industry and improves performance and stability of a power system.

The invention relates to a gravity load compensation device, in particular to a force output device for optical mirror surface deformation compensation, and solves the problems that the accuracy of a bending surface shape is influenced due to the gravity load of an existing optical mirror needing to be bent when the optical mirror is clamped by a bending mechanism, and the synchronization effect of light beam lines becomes poor. When the optical lens needs to be subjected to gravity load compensation, the output end of the electric control micro-motion telescopic mechanism drives the connecting rod to move, force is transmitted to the tension spring, the tension spring correspondingly stretches, the force is transmitted to the pull rod, and the pull rod pulls the dowel bar to enable the dowel bar to rotate around the rotating shaft; the pressure sensor on the dowel bar can provide an upward acting force for the optical mirror to compensate the gravity load of the optical mirror, meanwhile, the pressure sensor detects the bearing capacity all the time, converts a pressure value into an electric signal and transmits the electric signal to the upper computer, and the upper computer controls work of the electric control micro-motion telescopic mechanism according to the electric signal to achieve real-time adjustment of the supporting force.

The invention discloses an AI electric hydraulic monorail hoist control method and system, a medium and a product, and relates to the field of hoist control. According to the method, the control system determines the pressure deviation value of the hydraulic system according to the theoretical pressure value (determined through the weight value of the object hoisted by the lifting hook and the preset weight-pressure conversion function) of the hydraulic system and the real-time pressure value, and the pressure deviation value is used for responding to the weight change of the object hoisted by the lifting hook; and the control system determines a displacement deviation item of the current position and the target position of the lifting hook according to the spatial motion acceleration data of the lifting hook so as to determine stable correction pressure for responding to the motion condition change of the lifting hook. According to the method, the pressure output of a hydraulic system is dynamically corrected, the precision of pressure control is remarkably improved, the shaking or position deviation of the lifting hook caused by pressure lag is reduced, the stability and safety of the lifting process are enhanced, and the problem that the performance of traditional control is insufficient under load sudden change or external interference is effectively solved.

A counterbalance device for an apparatus with composite joints is provided. The apparatus includes a frame, a first movable member translatable relative to the frame in a first direction, and a second movable member rotatable relative to the first movable member about a first axis. The counterbalance device includes: a force output mechanism configured to provide an output force; a distribution mechanism connected to the force output mechanism, to allow the force output mechanism to apply the output force to the distribution mechanism; and a pulling mechanism connected to the distribution mechanism, to allow the pulling mechanism to act on the distribution mechanism. The pulling mechanism is connected to and translatable relative to the first movable member in the first direction. The pulling mechanism is further connected to the second movable member, and is translatable in the first direction with rotation of the second movable member about the first axis.

The invention belongs to the technical field of constant force output control, and provides a constant force controllable actuator and a control method thereof.The constant force controllable actuator comprises a fixed end mechanism, a pre-tightening mechanism, an offset mechanism, an output end mechanism and a rope, and the rope can be pulled when the relative rotation angle of a traction gear and an output gear changes; the pre-tightening sliding block floats along with constraint such as external force transmitted by the rope, the balance position is finally determined, and the relative distance between the pre-tightening sliding block and the pre-tightening nut determines the compression amount of the spring; in order to guarantee constant force output, the pre-tightening motor can conduct follow-up adjustment on the position of the pre-tightening nut, the compression amount of the spring is indirectly adjusted, and constant force control of the whole actuator in the floating stroke is guaranteed by adjusting the compression amount of the spring in real time. An electric elastic driving mode is adopted, so that the dependence of traditional pneumatic driving on an external air source is avoided, and meanwhile, the precision and stability of force output are improved; and through modularized and compact mechanism design, the installation and operation processes are simplified.

The application relates to a coupling for receiving driving force from a force output mechanism arranged in an imaging device to drive a rotating body to rotate, the force output mechanism comprising a driving force output part, a braking force output part and an elastic pushing assembly, the coupling comprising a base, a driving force receiving part connected with the base and a reset assembly abutting against the driving force receiving part, the driving force receiving part being arranged to be capable of extending and retracting relative to the base along the rotating axis of the coupling; during the extension of the driving force receiving part, the reset assembly generates a reset force to force the driving force receiving part to move towards the retracted state, the elastic pushing assembly is elastically deformed, one of the driving force output part and the braking force output part is combined with the driving force receiving part so that the driving force receiving part receives the driving force, and the base is used for transmitting the driving force to the rotating body; the structure of the coupling is simplified, the risk of damaging the braking force output part is reduced, and finally, the coupling and the force output part can be smoothly combined.

The utility model discloses a kind of precision custom spring and spring pressure detection device, belong to the detection technical field of spring pressure, including base and the support frame being installed on base, the top of support frame is equipped with hydraulic cylinder, the detection component is located directly below and is provided with protection mechanism, the protection mechanism is fixed at the top of base, by setting protection mechanism directly below detection component, spring can be accurately limited and fixed, effectively solve the problem that spring detection in prior art is prone to bending, deviation, significantly improve detection accuracy, the setting of hydraulic cylinder can provide stable and controllable pressure output, cooperate controller to accurately regulate and control detection component, make pressure loading process more stable, avoid the damage caused to spring by pressure mutation, the reliable fixing of protection mechanism can prevent spring from ejecting in detection, eliminate the security risk to operator and equipment, improve the security of detection process.

This disclosure relates to the field of freight car testing technology, and particularly to a method and apparatus for testing wheel-rail forces on in-service railway wheels. The method uses a three-dimensional finite element model of the wheel to determine a fitting function between the normal stress output and the position radius under different operating conditions. Based on the fitting function, the radius that maximizes measurement accuracy is determined, thereby optimizing the position of strain gauges. Furthermore, based on multiple strain gauges, strain output information is determined to identify the wheel-rail forces acting on the wheel. This allows for continuous monitoring of wheel-rail forces on a moving wheel without destructive machining of the wheel and axle.

The detachable high-strength spiral drilling machine comprises a drilling machine body, a spiral drilling rod and a connecting assembly, the drilling machine body comprises a machine cover and a power output shaft, the spiral drilling rod comprises a center rotating shaft, spiral blades, drilling teeth and a drilling tip, the spiral blades are arranged on the center rotating shaft, and the connecting assembly is arranged at the top end of the center rotating shaft; the connecting assembly comprises a connecting sleeve, a sliding inserting rod and a limiting inserting block, the connecting sleeve is connected to the top end of the center rotating shaft, a connecting inserting opening is formed in one end of the connecting sleeve, the power output shaft is inserted into the connecting inserting opening, a connecting blind hole is formed in the power output shaft, the sliding inserting rod penetrates through the connecting sleeve, and one end of the sliding inserting rod is embedded into the connecting blind hole; the limiting insertion blocks are slidably arranged on the peripheral walls, located in the connecting blind holes, of the sliding insertion rods, and anti-disengaging holes corresponding to the limiting insertion blocks in position are formed in the inner walls of the connecting blind holes. The drilling device has the effects that the drilling quality is improved, and the device connection stability and the structural strength are improved.