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666 results about "Resistance force" patented technology
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In physics, resistance force is the force which an effort force must overcome in order to do work on an object via a simple machine. Resistance force, like most other forces, is measured in newtons or in pounds-force. For an ideal mechanism in which no energy is lost, resistance force obeys the relation: where: R equals resistance force DR equals resistance distance E equals effort force DE equals effort distance Resistance force is used to calculate the work output using the following equation:
Sand gravel stratum jacking pipe jacking force-stratum resistance real-time matching control method
The invention discloses a sand gravel stratum pipe jacking force-stratum resistance real-time matching control method, belongs to the technical field of underground engineering pipe jacking construction, and solves the technical problems of pipe clamping, ground upheaval or settlement easily caused by mismatching of jacking force and stratum resistance in a sand gravel stratum. According to the method, the jacking force is calculated by collecting the pressure of a jacking oil cylinder in real time, the torque of a cutter head, the rotating speed of a spiral conveyor and the soil outlet pressure are synchronously obtained, and a resistance sudden change area is recognized and target resistance is dynamically predicted based on the sudden change gradient of the torque-rotating speed ratio; the jacking speed, the grouting pressure and the rotating speed of the spiral conveyor are adjusted in a linkage mode according to the real-time deviation of the jacking force and the target resistance; and through grouting closed-loop control and unearthed pressure fluctuation analysis, a penetration abnormal area is judged, a penetration coefficient is corrected, and real-time dynamic matching of jacking system parameters and formation resistance is achieved. The method is mainly used for safe and efficient propulsion control of sand gravel stratum pipe jacking construction.
Owner:中电建路桥集团有限公司
Vehicle brake pedal with linear pedal resistance and dampener assembly and force / position sensor
ActiveUS12296811B2Controlling membersLimiting/preventing/returning movement of partsControl theoryForce sensor
A vehicle pedal resistance and dampener assembly includes a dampener module defining an interior fluid-filled cavity and adapted for generating a dampening force on the vehicle pedal. A pedal resistance module generates a resistance force on the vehicle pedal. The dampener module and the resistance module are moveable relative to each other. A shaft in the dampener module extends into and is moveable in a fluid-filled sleeve in the resistance module. A pedal position sensor senses and measures the position of the vehicle pedal. A pedal force sensor senses and measures the force on the vehicle pedal. A first resistance spring is located in the sleeve of the pedal resistance module, a second resistance spring surrounds the sleeve of the pedal resistance module, a third resistance spring surrounds the shaft of the dampener module, and a fourth resistance spring surrounds the third resistance spring.
Owner:CTS CORP
Resistance training machine and methods of use
A resistance training machine, a method of providing custom workouts, and a method of providing feedback on user form and user balance are disclosed. The resistance training machine includes a left and right motor, a left and right pulley system, a left and right cable, a machine controller, and a human machine interface. Advantageously, the resistance training machine can provide isotonic exercises, isokinetic exercises, and feedback on form and balance for a user. The first method includes a user calibrating one or more exercises, selecting an exercise, selecting an exercise mode, and performing the exercise. For each exercise, a motor may ramp up to and ramp down from a selected velocity or force level.
Owner:SPEEDE FITNESS LLC
Hybrid power fitness equipment
The invention provides hybrid power fitness equipment. The hybrid power fitness equipment comprises a tension assembly; the driving motor and the resistance device are matched through a one-way bearing; the tension assembly is in transmission connection with the one-way bearing through the transmission assembly, when the tension assembly is in a first resistance training state, the resistance device and the driving motor are in transmission connection with the one-way bearing, and the resistance device provides resistance for tension resistance; when the tension assembly is in the second resistance training state, the resistance device and the driving motor are in transmission connection with the one-way bearing, and the resistance device and the driving motor jointly provide resistance for the tension assembly; when the tension assembly is in a tension recovery state, the driving motor is connected with the one-way bearing to provide recovery force for the tension assembly, and the recovery force and resistance are provided on the premise of low-cost improvement by using the resistance device and the driving motor at the same time. The contradiction between the one-way resistance experience bottleneck of a resistance training assembly in the prior art and the cost of traditional two-way force equipment is solved.
Owner:POKANG TECH CO LTD
Resistance identification method and device for hydraulic support
PendingCN119666213Aaccurate identificationimprove securityMine roof supportsApparatus for force/torque/work measurementControl engineeringProcess engineering
Owner:HUATING COAL GRP CO LTD +2
Grinding device and grinding method for inner curved surface of steel casting
The invention discloses a polishing device and a polishing method for an inner curved surface of a steel casting, and relates to the technical field of cast steel production. The device comprises a main body frame and a polishing device, wherein the main body frame comprises a mounting table arranged on the main body frame; the stirring mechanism comprises a plurality of profiling plates which are mounted on the mounting table and used for stirring abrasive particle flow in the casting blank, and a plurality of rotating wheels are rotationally mounted on the inner wall of each profiling plate; the back pressure mechanism is used for driving the profiling plate to enter the casting blank; the rotating wheel is driven to rotate through resistance of abrasive particle flow, so that the abrasive particle flow completes switching between the distance from the abrasive particle flow to the central axis of the casting blank, and meanwhile, in the revolution process of the profiling plate, the abrasive particle flow in the casting blank is extruded up and down in a reciprocating mode through the action of a reciprocating mechanism; and the abrasive particle flow circularly polishes the inner wall of the casting blank up and down, so that the purposes of fully switching and contacting the abrasive particle flow and the inner wall of the casting blank, ensuring the polishing quality and improving the polishing efficiency are achieved.
Owner:JIANGSU WANLIU MASCH MFG CO LTD
Pressing wheel mechanism facilitating distance control
The utility model relates to the technical field of pipe pile forming machines, in particular to a pinch roller mechanism convenient for distance control, and aims to solve the technical problems that in the prior art, the rotating resistance of a pipe die is large, and heat is easily accumulated on the surface of a pinch roller, the pinch roller mechanism specifically comprises a box body, and an inner cavity is formed in the box body; the rotating seat is fixedly arranged on the side plate of the box body; one end of the swing arm is rotationally connected with the rotating seat through a rotating shaft; the pressing wheel is arranged at the other end of the swing arm and is rotationally connected with the swing arm through a wheel shaft; the driving mechanism is arranged in the inner cavity and can drive the swing arm to swing up and down around the rotating seat; the driving mechanism comprises a movable arm, one end of the movable arm penetrates through a through opening formed in a side plate of the box body and is fixedly connected with the near end of a swing arm into a whole; by arranging the limiting device matched with the jacking device, accurate adjustment of the distance between the pressing wheel and the pipe die is achieved, the problems that due to the fact that a distance control mechanism is lacked in a traditional pressing wheel mechanism, continuous pressing fit between the pressing wheel and the pipe die is caused, and resistance is increased are solved, and the heat accumulation phenomenon of the wheel face of the pressing wheel is reduced.
Owner:CCCC THIRD HARBOR ENGINEERING CO LTD
Self-propelling complex drill bit drilling control method and system
The invention provides a drilling control method and system for a self-propelled complex drill bit, and the method comprises the steps: setting a rated cutting torque through obtaining roadbed soil, hydraulic power and geometric parameters, calculating the total propulsion resistance based on the roadbed strength to control the axial jacking force, and carrying out the safety verification of the drag force; calculating a critical flow velocity according to the characteristics of the drilling slag to adjust the discharge capacity and negative pressure of the slurry pump so as to determine an operation boundary; drilling and deslagging are cooperatively executed under the boundary, and the trajectory is corrected by combining a PID algorithm and the propulsion speed is optimized based on the theoretical mechanical drilling speed. According to the method, the technical problems that existing trenchless construction depends on experience to set parameters, scientific quantitative calculation of the slag discharge flow speed and the safety drag force is lacked, and then pipe cable blockage and drainage pipe damage are caused can be solved, and full-system cooperative efficient control of drilling, propelling, slag discharge and guiding based on multi-field coupling calculation is achieved.
Owner:CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST
Method and device for calculating resistance coefficient of porous medium, medium and equipment
ActiveCN121787308ASustainable transportationDesign optimisation/simulationPorous mediumViscous resistance
The invention discloses a resistance coefficient calculation method and device of a porous medium, the medium and equipment. The method comprises the steps that a three-dimensional geometric model of target equipment is constructed, a simulation area of the porous medium in the three-dimensional geometric model is determined, a simulation experiment is conducted on the target equipment, and an inlet and outlet experiment pressure difference is obtained; constructing an optimization model based on an inlet and outlet experiment pressure difference and an inlet and outlet simulation pressure difference, wherein the inlet and outlet simulation pressure difference is obtained by performing fluid simulation calculation on a three-dimensional geometric model based on a CFD control equation, a continuity equation, a CFD momentum conservation equation, a viscous resistance coefficient and an inertial resistance coefficient of a simulation area; taking the optimization model as a target function in a population algorithm, wherein position variables corresponding to individuals in the population algorithm are a multidirectional viscous resistance coefficient and a multidirectional inertial resistance coefficient; and solving the optimization model based on a population algorithm to obtain an optimal viscous resistance coefficient and an optimal inertial resistance coefficient. The identification accuracy of the inertial resistance coefficient and the viscous resistance coefficient is improved.
Owner:BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
Device and method for detecting tensile strength of steel wire rope of elevator
The invention relates to the technical field of steel wire rope detection, and discloses an elevator steel wire rope tensile strength detection device and method.The elevator steel wire rope tensile strength detection device comprises a machine base, a detection frame arranged on the machine base, a control case and a lifting assembly arranged on the detection frame; the lifting assembly comprises a lifting seat, and clamping assemblies for clamping and fixing the steel wire rope are arranged on the upper side of the lifting seat and the detection frame. According to the elevator steel wire rope tensile strength detection device, through the cooperation between the protection assembly and the buffer assembly, damping liquid in the buffer part is extruded by the buffer plate and flows through the through holes, the viscous resistance of the damping liquid is used for attenuating the kinetic energy of a moving machine, and the effect of buffering force unloading is achieved; the flow rate of the damping liquid can be further slowed down through the retention hole in the through hole, the buffering and damping effect is enhanced, the counter-acting force generated when the steel wire rope is broken can be effectively attenuated through the arrangement, and the mechanical structure of the detection equipment is protected against damage.
Owner:TIANJIN HUAYUAN TIANLUN ROPE IND
High dynamic response electromagnetic damping system
ActiveCN120626660AVibration dampersMagnetic springsElectrical resistance and conductanceElectric machine
The invention discloses a high dynamic response electromagnetic damping system, and relates to the technical field of dampers. Through cooperation of the sealing driving electromagnet and the resettable tension spring, instantaneous opening and closing of the circulation path of the inner cylinder and the outer cylinder are achieved; the two working modes of gear damping and stepless damping are switched, only the electromagnet needs to be cut off or excited, a valve element does not need to be mechanically inserted and pulled, the dynamic response time can be compressed to the millisecond level, and the high-frequency vibration suppression capacity and the system reliability are greatly improved; a blade-worm gear-motor closed-loop servo structure is adopted, a force sensitive resistor senses the direction and the size of oil flow in real time, and the rotating speed of the blade can be continuously adjusted within the resistance coefficient of 0-100% through a control algorithm; compared with a magnetorheological fluid type scheme depending on magnetic induction shearing, the problems of temperature drift and ferromagnetic particle deposition are solved, and the damping linearity and repeatability are ensured.
Owner:QINHUANGDAO DAZE ELECTROMECHANICAL EQUIP CO LTD
Stretching linkage equipment and tensioner
The stretching linkage equipment comprises a traction machine and the tension machine, the traction machine comprises a traction machine frame, a traction winding drum and a guide mechanism, the traction winding drum is installed on the traction machine frame, and the guide mechanism is arranged on the traction machine frame; the tension machine comprises a tension machine frame, an output shaft and a tension winding drum, the tension winding drum is rotationally arranged on the tension machine frame, and the output shaft is fixedly connected to the tension winding drum; a hydraulic resistance braking mechanism is fixedly arranged on the tension rack, and the hydraulic resistance braking mechanism is arranged on the output shaft in a sleeving manner; the tension machine further comprises a gear motor, and the gear motor is arranged on the tension machine frame. The hydraulic resistance braking mechanism comprises a liquid disc, a closed liquid cavity filled with magnetorheological fluid is arranged in the liquid disc, a resistance wheel set is arranged in the liquid cavity, and the resistance wheel set comprises a rotatable resistance blade and a motor; and a magnetic field regulation and control mechanism is arranged outside the liquid disc. The technical problem that hydraulic braking of existing stretching equipment fails is solved by integrating the hydraulic resistance braking mechanism and the magnetic domain regulation and control mechanism through the tensioner.
Owner:XIANGYANG POWER SUPPLY COMPANY OF STATE GRID HUBEI ELECTRIC POWER
Friction plate modeling method of brake system and related device
PendingCN119670255ASimulation is accurateGeometric CADSustainable transportationVehicle dynamicsBrake torque
The invention discloses a friction plate modeling method of a braking system and a related device, and relates to the technical field of vehicle dynamics, the first braking state of the braking system at the current moment is determined; and under the condition that the first braking state is the locked state, based on the assumption that the connection relation is the spring damping system, the first friction torque between the friction plate model and the wheel model is calculated, and the first friction torque is the first braking torque of the braking system in the locked state. When the wheel is locked, the static friction force of the friction plate is approximately equal to the rolling resistance of the wheel, and the friction plate and the wheel are not absolutely rigid, so that the friction plate slightly deforms under stress, and the static friction force of the friction plate fluctuates up and down under the resistance of the wheel but does not suddenly change; according to the application, during modeling, a spring damping system is used between the friction plate model and the wheel model to achieve a similar effect, so that the brake torque under a vehicle locking state can be accurately simulated, and great help can be provided for a brake control system algorithm simulation test.
Owner:BEIJING JINGWEI HIRAIN TECH CO INC
Intelligent hardware grinding device and grinding process thereof
The invention relates to the related technical field of grinding machinery, discloses an intelligent hardware grinding device and a grinding process thereof, and aims to solve the problem that effective grinding cannot be performed due to the fact that a protrusion defect is located between a steel part and a grinding seat. When the driving motor drives the steel part, the output torque can be limited through the first torque limiting base and the right connecting base, and when the protruding defect of the steel part moves to the position of the grinding wheel, the rotating resistance of the steel part is increased through blocking of the grinding wheel on the protruding defect. And power weakening of the driving motor is achieved through the first torque limiting base and the right connecting base, in the process, the steel piece drives the protrusion to still have the rotating tendency, the grinding motor drives the grinding wheel to continuously grind the defect of the protrusion, and after the defect of the outer side of the steel piece is completely ground, the steel piece and the grinding wheel recover relative same-direction rotation again.
Owner:ZHANGJIAGANG DONGKAI HARDWARE TOOLS CO LTD
Surface polishing treatment device for bearing machining
The invention relates to the technical field of bearing machining, and discloses a surface polishing treatment device for bearing machining, which comprises a bottom plate, a base, a machine body, a supporting rod, a main shaft mechanism, a cantilever rod and a stable supporting mechanism, and is characterized in that a piezoelectric actuating mechanism is arranged, and a piezoelectric sensing element is embedded in a high-speed rotating grinding wheel; friction resistance in the horizontal direction and vibration impact force borne by the grinding wheel in the cutting process are captured in real time, physical signals are transmitted to the piezoelectric sensor fixed to the workpiece bracket, the distance between a signal source and a force bearing point is shortened through built-in sensing, signal attenuation caused by long-distance transmission is avoided, and the machining precision of the grinding wheel is improved. Instantaneous impact and initial displacement of vibration are accurately captured, a physical basis is provided for closed-loop control, a displacement amplification mechanism and a first-stage bearing mechanism are arranged, a lever group converts infinitesimal displacement of an actuator into large-amplitude displacement, meanwhile, a spring buffers high-frequency impact, in the first-stage bearing mechanism, a gear plate drives a coaxial gear set, and in the second-stage bearing mechanism, the gear plate drives the coaxial gear set; and the horizontal displacement is converted into vertical lifting force.
Owner:JIANGSU GUOWEI ENG MACHINERY CO LTD
Resistance output module and fitness equipment
The utility model discloses a resistance output module and fitness equipment, and the resistance output module comprises a rack; the load assembly is connected to the rack, and the load assembly comprises a load motor and a transmission chain; the output assembly is connected to the rack, the output assembly comprises a connecting part, a connecting rope and a stretching part which are connected in sequence, and the connecting part is fixed to one side of the transmission chain; wherein the load motor can output load force, the stretching part is suitable for moving outwards so as to drive the load motor to rotate through the transmission chain, and the load motor is in transmission connection with the transmission chain and used for driving the transmission chain to reset. The output assembly is fixed to the transmission chain, so that a player can directly pull the stretching component to train, the structure of a transmission system is greatly simplified, use of complex components such as a traditional speed reducer and a traditional differential mechanism is reduced, and the problem that a traditional rope is prone to being folded and wound when being repeatedly wound and released on a winding wheel is thoroughly solved; and smoothness and stability of power output are ensured.
Owner:SHENZHEN OXYGEN SPORTS TECHNOLOGY CO LTD
Resistance pulley structure, rowing machine, and rowing high-position pull-down integrated machine
A resistance pulley structure includes a symmetrical stay cord assembly, a transmission assembly, a resistance assembly and driving parts. The stay cord assembly includes a stay cord, a first and a second fixed pulley block and a movable pulley block. The movable pulley block includes a left and right movable pulleys, and the second fixed pulley block includes a second left fixed pulley and a second right fixed pulley. The rotation direction of the second fixed pulley block is parallel to the rotation direction of the first fixed pulley. After the stay cord bypasses the first fixed pulley, two ends bypass the left and right movable pulley respectively, then bypass the second left fixed pulley and the second right fixed pulley respectively, and connected to the driving parts.
Owner:SUNNY DISTRIBUTOR INC
Extreme sinking depth calculation method in shaft sinking construction
The invention discloses a method for calculating the limit sinking depth in vertical shaft sinking construction, and the method comprises the steps: S1, building a construction mechanical model in a vertical shaft lifting and controlling sinking process, and obtaining an analysis equation; s2, converting the analysis equation according to the value of the blade foot end resistance Rj; s3, calculating a vertical suspension force T; and S4, calculating the limit sinking depth Hmax of the vertical shaft. The method has the advantages that the analysis equation is obtained by building the construction mechanical model in the shaft lifting and controlling sinking process, the limit sinking depth Hmax of the shaft is finally obtained by calculating the vertical suspension force T, and reference is provided for open caisson parameter design.
Owner:CHINA RAILWAY 15TH BUREAU GROUP CORPORATION LIMITED +1
Four-arm-arm multi-track strength training device
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.
Owner:SHENZHEN OXYGEN SPORTS TECHNOLOGY CO LTD
Cordless roller blind and resistance mechanism thereof
A resistance mechanism is adapted to be installed between a winding shaft and a fixed seat of a cordless roller blind, and includes a housing and a resistance module. The housing includes a tubular wall that is hollow and that surrounds an axis which extends in a left-right direction, and an end wall that is connected to one end of the tubular wall. An inner circumferential surface of the tubular wall is provided with a teeth structure that surrounds the axis. The resistance module includes a shaft that extends along the axis through the end wall and that is surrounded by the tubular wall, and a plurality of gears each of which is mounted to the shaft and rotatable relative to the shaft about a rotation axis extending in the left-right direction. The gears are spaced apart along a periphery of the shaft and mesh with the teeth structure.
Owner:LIN YA YIN
Bridge vibration exciting and damping integrated device, bridge and laying method
The application relates to the technical field of bridge vibration control, in particular to a bridge excitation and damping integrated device, a bridge and a laying method. The bridge excitation and damping integrated device comprises a mass block, a spring assembly, an actuator and two groups of lever assemblies. The middle part of the mass block is provided with a mounting hole, and a flywheel is arranged on the mass block. The spring assembly is arranged below the mass block and connected with the mass block, and the other end is connected with a structure to be damped. The actuator is arranged in the range of the mounting hole. The two groups of lever assemblies are respectively connected with the mass blocks on the two sides of the mounting hole through power arm ends, and the resistance arm ends are connected with the end parts of the telescopic rods of the actuator. When the telescopic rods of the actuator are telescopically extended or retracted, the mass blocks are driven to move up and down through the lever assemblies. The problem that the damping effect is only predicted through numerical simulation or simplified model test in the prior art and it is difficult to adjust parameters after installation can be solved. In addition, the nesting layout of the actuator and the mass block can reduce the requirement for the installation space by using the lever displacement amplification principle.
Owner:CHINA RAILWAY BRIDGE RES TECH CO LTD +2
A deviation rectifying device for flexible composite high-pressure conveying pipe production
The utility model relates to flexible conveying pipe technical field, concretely for a kind of deviation rectifying device for flexible composite high-pressure conveying pipe production, including fixed frame, and the middle part is penetrated and is provided with circular slot, and the front of the fixed frame and located the outside fixed connection of circular slot has fixed ring, four clamping mechanisms are set on fixed ring with equal arc;Gear ring, its activity is set to the side of fixed frame away from fixed ring, driving mechanism is set between the gear ring and clamping mechanism. The utility model realizes the synchronous control of four clamping rollers by the accurate positioning meshing cooperation of gear one and gear ring, and the coaxial linkage design of gear two and gear three, effectively solve the problem that the pressure fluctuation in existing pneumatic system leads to inconsistent problem of resistance force.
Owner:JIANGSU LIANGUAN ZHAOXING PETROLEUM & CHEM CO LTD
Balance block for reducing flow hysteresis resistance, dynamic balance assembly and compressor
ActiveCN223724852URotary/oscillating piston pump componentsLiquid fuel engine componentsDynamic balanceCrank
The utility model provides a balancing block for reducing flow hysteresis resistance, a dynamic balance assembly and a compressor, the balancing block comprises a base and a counterweight part, the base comprises a first connecting part with a crankshaft hole in the middle and a second connecting part surrounding the first connecting part, the balance weight part extends outwards from the upper end face of the second connecting part in the axial direction of the crankshaft hole, the two ends of the balance weight part are a first windward face and a first leeward face respectively, the upper end face of the second connecting part serves as a first plane, and the horizontal projection of the balance weight part falls into the first plane. According to the balance block capable of reducing the flow hysteresis resistance, through cooperation of the base and the balance weight part, the area of the windward side can be effectively reduced, and then the generated flow hysteresis resistance is reduced. The balance block capable of reducing the flow hysteresis resistance is simple in overall structure, and the problem that in the prior art, when a balance block rotates, due to the fact that the large windward area is achieved, large flow hysteresis resistance is generated, and additional energy loss is generated in the movement of a compressor is solved.
Owner:JOHNSON CONTROLS HITACHI WANBAO COMPRESSOR GUANGZHOU CO LTD
Translation mechanism
The invention relates to the technical field of guide mechanisms, and discloses a translation mechanism which comprises two longitudinal rails parallel to each other and a tackle arranged between the two rails, and a longitudinal rolling groove is formed in the side, facing the tackle, of each rail; the pulley comprises a frame and two wheel sets arranged on the two sides of the frame respectively, the two wheel sets correspond to the two rolling grooves respectively, each wheel set comprises at least three wheels which are sequentially arranged in the longitudinal direction, the wheels are all rotationally connected with the frame, and the wheels are located in the corresponding rolling grooves respectively. When the pulley moves longitudinally, the wheels roll along the rolling grooves, and the rolling friction force is very small, so that the resistance is very small when the workbench moves, and the movement is more flexible. Even if dust enters the rolling groove, the wheel rolls in the rolling groove, so that abrasion to the edge of the wheel is very small and can be almost ignored, and the service life of the wheel is prolonged.
Owner:BAODING ZHUOHENG MASCH MFG CO LTD
Rotary damping dial
This utility model discloses a rotary damping dial, relating to the field of mechanical transmission and control. It includes an outer wheel, an inner wheel, and a damping mechanism. At least one damping mechanism is provided between the outer and inner wheels. The damping mechanism includes a set screw threaded onto the outer wheel, a spring at the tail end of the set screw, and a damping pin. By tightening or loosening the set screw, the spring is compressed or released, thereby adjusting the resistance of the damping pin on the inner wheel. The damping mechanism of this utility model consists of a set screw, a spring, and a damping pin. In use, by tightening or loosening the set screw, the spring force is changed, thereby adjusting the resistance of the damping pin on the inner wheel. The resistance between the damping pin and the inner wheel can be adjusted according to the usage scenario, allowing the same specification of damping dial to be used in different scenarios, thus improving the flexibility and practicality of the damping dial.
Owner:SUZHOU FOUNDATION HVAC EQUIP CO LTD
Expandable implant with worm gear
An expandable device comprising, a body defining a bore, a shaft received in the bore of the body, an end plate coupled to the shaft, wherein rotation of the shaft translates the end plate with respect to the body, and a locking mechanism engaged with the shaft so as to permit the shaft to rotate in a first direction and apply a resistance force to resist the shaft when attempting to rotate in a second direction.
Owner:VB SPINE LLC
Device and method for testing an interconnect bonding part
ActiveCN113933180BMachine part testingMaterial strength using tensile/compressive forcesPull forceTest equipment
An interconnect bonding part testing device for testing the bonding strength of an electronic device, the electronic device including at least one interconnect bonding part attached to the electronic device. The interconnect bonding part testing device has a positioning mechanism and a test tool assembly mounted on the positioning mechanism. The test tool assembly is configured to push a first part of the interconnect bonding part and lift a second part of the interconnect bonding part, and the positioning mechanism operates to align the test tool assembly with the interconnect bonding part during the test, and apply a pushing force to the first part of the interconnect bonding part and a pulling force to the second part of the interconnect bonding part. The interconnect bonding part testing device has a fixture, which includes at least one force sensing element mounted thereon. The at least one force sensing element is configured to apply a resistance force to the test tool assembly when engaging with the test tool assembly.
Owner:ASMPT SINGAPORE PTE LTD
Impact unloading device and grass trimmer
The invention relates to the field of gardening tools, and discloses an impact unloading device and a grass trimmer, the impact unloading device comprises a rotating assembly, a blade, a buffer assembly and an output shaft, the output shaft is simultaneously connected with and drives the rotating assembly and the buffer assembly to rotate, the blade is located between the rotating assembly and the buffer assembly in the axial direction, and the buffer assembly comprises a first connecting piece and an elastic piece; the first connecting piece is suitable for abutting against the blade and is in axial sliding connection with the blade, and the elastic piece elastically abuts against the first connecting piece in the axial direction, so that the first connecting piece and the rotating assembly clamp the blade and drive the blade to rotate. When the blade is subjected to impact or large resistance, the first connecting piece is matched with the elastic piece, the impact force of the blade is transmitted to the first connecting piece, the first connecting piece axially moves to be far away from the blade and extrudes the elastic piece, and by weakening the clamping effect on the blade, the blade slips and idles in an expanded gap between the rotating assembly and the buffering assembly; therefore, impact force is unloaded, the rotating speed of the blade is slowed down, and damage to the blade and a machine body is reduced.
Owner:NINGBO RAYRAIN MECH-TECH CO LTD
Stamping integrated equipment and method of energy storage steel row
The present application relates to the field of stamping equipment, especially to a kind of stamping integrated equipment and method of energy storage steel row, including rack, the top of the rack is fixedly connected with workbench, the top of the workbench is installed with bottom plate, the top of the bottom plate is installed with lower die plate, the rear side of the workbench is installed with fixed frame, the front end of the fixed frame is fixedly connected with hydraulic cylinder in upper portion, the bottom of the hydraulic cylinder is fixedly connected with mounting plate in telescopic end, the bottom of the mounting plate is installed with upper die plate by bolt, the bottom of the upper die plate is all penetrated and slidably connected with guide pillar, the bottom end of the guide pillar is all fixedly connected with middle pressure plate, ultrasonic vibration head is arranged in bending stage, and high-frequency vibration is transmitted to bending plate by vibration piece and hydraulic medium, high-frequency dynamic stress disturbance is applied to material while the mechanical bending force acts, can promote material internal dislocation movement and plastic flow, reduce local deformation resistance, to effectively reduce bending forming force.
Owner:FUJIAN SHENGKAILUN NEW ENERGY TECH CO LTD
