102 results about "Force generation" patented technology

A shock absorber includes a first passage provided in a piston and through which a working fluid moves from a chamber on an upstream side to a chamber on a downstream side in a cylinder due to movement of the piston, a first damping force generation mechanism provided in the first passage to generate a damping force, a second passage (141) provided in a piston rod (21), and a fixing member fixed to the piston rod (21) to form the second passage (141), and a second damping force generation mechanism provided in the second passage (141) to generate a damping force, in which a throttle member (161) provided in the second damping force generation mechanism, including a plurality of notch parts (171) at substantially regular intervals in a circumferential direction to form a throttle flow path (76) in the second passage due to the notch parts (171), and formed to have a flow path area of the throttle flow path (76) that is constant regardless of an attachment position thereof in the circumferential direction is further provided.

The invention provides a non-contact micro magnetic force measuring device, and belongs to the field of non-contact micro force measurement. The problem that it is difficult to measure the curve of the micro force changing along with the distance by directly connecting the weight is solved. The magnetic force calibration device is suitable for magnetic force calibration between permanent magnets with the output magnitude of milliNewton, and the specific application range is that the minimum stepping distance capable of being tested by the device is 0.1 mm, and the applicable temperature is 0-35 DEG C. Micro magnetic force is generated through the two centering permanent magnet columns, the direction is vertically downward, different micro magnetic force is obtained by changing the distance between the two permanent magnets through the XYZ moving table, and the micro magnetic force is measured through the electronic balance. The device can realize the target that the axes of the two permanent magnets are positioned in the center of the electronic balance. The micro electromagnetic force measuring device can achieve the purpose of static calibration of a milliNewton-level magnetic force generation system at different temperatures.

A pedal emulator for a vehicle, having a rotational axis, a pedal lever that can be rotated about the rotational axis, and a force generation unit for exerting a counterforce on the pedal lever via at least one coupling element of the force generation unit that is mechanically coupled to the pedal lever. The counterforce acting in the opposite direction to an actuation force exerted on the pedal lever. The force generation unit can be designed such that a curve of the counterforce along a pedal path of the pedal lever is in the form of a non-linear curve in a pedal path-counterforce diagram.

The invention discloses an impact resistance test device and method for low-altitude unmanned aerial vehicle manufacturing, and relates to the technical field of unmanned aerial vehicle impact resistance detection, the impact resistance test device comprises a machine base, the outer wall of the bottom of the machine base is fixedly connected with a base, and the top of the machine base is provided with an impact force generation assembly used for providing impact force for an aerial vehicle body. A rotating assembly used for adjusting the direction of the impact force generating assembly is arranged in the machine base. A visual detection assembly used for monitoring the state of the aircraft body is arranged on the top of the machine base, and the visual detection assembly is arranged on the opposite side of the impact force generation assembly. According to the invention, low-altitude complex airflow can be accurately simulated, multidirectional testing can be realized, the state of the aircraft can be monitored in real time by means of the angle-adjustable image collector, the accuracy of test data is ensured, and the defects of inaccurate airflow simulation, single function and insufficient monitoring of the existing device are overcome.

The application discloses a pole slot determination method and system of an integrated winding bearingless permanent magnet motor, and relates to the technical field of motor design. The method comprises the following steps: determining the number of unit motors of the bearingless permanent magnet motor to be designed relative to the torque winding based on the principle of integrated winding suspension force generation; determining the number of slots of the bearingless permanent magnet motor to be designed according to the number of pole pairs and the number of unit motors of the rotor based on the theory of alternating current winding; and obtaining the bearingless permanent magnet motor according to the number of pole pairs and the number of slots of the rotor. The application can realize the design of the integrated winding bearingless permanent magnet motor, so that a miniaturized motor structure is obtained.

The utility model relates to the field of training instruments, and discloses a multifunctional fitness device which comprises a trainer body, the trainer body comprises a force generation assembly, and the force generation assembly is used for providing motion resistance; wherein the first connecting assembly and the force generating assembly are connected with the bicycle frame through the first connecting assembly, so that a riding movement mode is formed; and the force generating assembly is connected with the pull rope through the second connecting assembly, so that a pulling movement mode is formed. The utility model provides a comprehensive training device with a riding exercise mode and a pulling exercise mode.

The utility model discloses a switching mechanism and fitness equipment, the switching mechanism comprises a main body, the top of the main body is provided with a matching structure used for being matched and assembled with a mounting structure on a pulley block, and one side of the main body is provided with a mounting structure used for being matched and assembled with a matching structure on a pedal. The switching mechanism is simple in structure, when the pulley block is indirectly installed on the side edge of the pedal through the switching mechanism, the switching mechanism lifts the rotating seat of the pulley block, and therefore the rotating seat can deflect towards the inner side by a larger angle, and when a user conducts inward stretching action, the rotating seat can rotate by a larger angle. The pull rope cannot be abraded due to friction with the edge of the rotating seat and / or the pedal, so that the service life of the pull rope is prolonged, and the use cost of the fitness equipment is reduced. Moreover, the tension rope does not rub with the edge of the rotating seat and / or the pedal, so that the force generation data of the counter motor can be more accurate, and the user can master the training data more accurately.

A measuring system comprises a stand having a base plate and a vertical column fastened thereto, a stand carriage that is movable along the vertical column and having a counter bearing for placing the object, a runner that is fastened to the stand carriage and is movable relative thereto in a guided manner and has an indenter for penetrating the object, having at least one force generation actuator, at least one motion generation actuator, wherein the indenter is coupled to the stand carriage via the actuators. The measuring system further comprises a metrology frame which is fastened to the counter bearing and is supported laterally on the vertical column, a displacement measuring unit for measuring a displacement of the stand carriage and / or the runner with the indenter. The measuring system comprises a force measuring circuit and a displacement measuring circuit both being are largely configured separately from one another.

This pressurization mechanism comprises: a reaction force generation body that is provided between a first member and a second member, which face each other in a first direction and for which the distance therebetween changes, and that elastically deforms following displacement of the first member or the second member; a first rigid body plate that is positioned closer to the second member than the reaction force generation body; and a first pressure equalization layer that is sandwiched between the first rigid body plate and the second member in the first direction. The reaction force generation body is partially in contact with a surface of the first rigid body plate that faces the first-member side. The first pressure equalization layer disperses and transmits, to the second member in a direction intersecting the first direction, a load that is partially applied to the first rigid body plate from the reaction force generation body.

The utility model discloses an adjustable motor riveting piece hold-down device which comprises a working table, a vertical frame, a hold-down assembly and a clamping air cylinder, the vertical frame with the top provided with an adjusting motor is fixed to one side of the top of the working table, and the output end of the adjusting motor extends into an adjusting groove formed in one side of the vertical frame and is provided with a lead screw. A pressing air cylinder is arranged on one side of the vertical frame through a fixing sleeve, the fixing sleeve is connected with the lead screw through an adjusting block, a pressing assembly is installed at the output end of the pressing air cylinder, a clamping air cylinder is arranged on the inner side of an opening in the bottom of the vertical frame, and a clamping plate is installed at the output end of the clamping air cylinder. A pneumatic control system is introduced, the clamping air cylinder and the pressing air cylinder are utilized, clamping and pressing of the riveting piece are achieved, the pressing force generation function and the supporting and fixing function are separated, the accuracy and efficiency of the pressing force are improved, and meanwhile the phenomenon that materials are damaged due to excessive pressing and the riveting piece is loosened due to insufficient pressing are effectively prevented.

The application discloses a rotary giant electro-rheological fluid energy collection damper, which comprises a shell, an input shaft coaxially arranged on the shell, a stator coaxially fixedly connected in the shell, a plurality of iron cores uniformly arranged in the stator in a circumferential direction, and an induction coil wound on the iron cores; the input shaft is coaxially fixedly connected with a rotor, a plurality of permanent magnets are uniformly arranged in the rotor in a circumferential direction, and the polarities of the adjacent two permanent magnets are opposite; the inner side of the plurality of iron cores is fixedly connected with an outer ring polar plate, the outer side of the rotor is fixedly connected with an inner ring polar plate, the outer ring polar plate and the inner ring polar plate are electrically connected with two poles of the induction coil respectively, and a cavity for containing electro-rheological fluid is arranged between the outer ring polar plate and the inner ring polar plate. The application can collect the energy generated by vibration and apply the energy to a damping force generation process, so as to utilize the generated damping force to carry out vibration isolation; in addition, the rotary giant electro-rheological fluid energy collection damper integrates the damping and the energy collection, has high integration degree, and can significantly reduce the size.

A pedal device includes a pedal and a reaction force generation mechanism. The reaction force generation mechanism includes a resilient device and a first holder. The first holder contacts the resilient device from one side, which is a side where the pedal is placed. The first holder has a primary disengagement stopper. The reaction force generation mechanism includes a second holder that contacts the resilient device from another side, which is opposite to the one side. The second holder has a secondary disengagement stopper. In a non-depressed state of the pedal, the pedal limits movement of the first holder toward the one side. When the pedal no longer limits and thus releases the movement of the first holder, the secondary disengagement stopper limits the movement of the first holder relative to the second holder beyond a predetermined limit toward the one side.

The utility model discloses a racing boat pedal pressure monitoring device and a racing boat pedal, and relates to the technical field of racing boat pedals, the racing boat pedal pressure monitoring device comprises a pressure sensor, one end of the pressure sensor is connected with a mounting block, the other end of the pressure sensor is connected with a mounting seat, the mounting block is used for being connected to a pedal, and the mounting seat is used for being connected to a racing boat. The mounting block is fixed on the pedal, the mounting seat is fixed on the racing boat, and the structural design enables the pressure sensor to accurately sense the force transmission condition of the pedal, and the pressure sensor outputs pressure data to the controller, so that real-time pressure data feedback is provided for athletes, the athletes are helped to adjust the force generation mode, and the safety of the athletes is improved. And the performance and efficiency of the racing boat are improved.

The utility model discloses a tuning wrench, and belongs to the technical field of musical instrument tuning. Comprising a tuning wrench body and an input handle. The tuning wrench main body comprises a transmission device, a positioning rod and a tuning cylinder; the transmission device is a worm and gear transmission device; the input handle is used for inputting power for rotation of the transmission device; the transmission device is connected with the tuning cylinder; the positioning rod is hinged with the transmission device; the tuning cylinder sleeves a string nail of a musical instrument and is used for rotating and adjusting a string of the musical instrument, so that the intonation of the musical instrument is adjusted. According to the structure, the fine tuning function is achieved while the function of a traditional tuning wrench is achieved, rotating force generation is more uniform, and intonation is more accurate.

Vibration control device for a railway vehicle (1), comprising: a plurality of force-generating mechanisms (7) arranged between a chassis (3) on which wheels are mounted and a vehicle body (2), wherein the force-generating mechanism (7) is configured to generate a force that is adjustable in the vertical direction; a control device (9) configured to control the force generated by the force-generating mechanism (7), including the control device (9) an abnormality detection and estimation part (12) configured to detect and estimate an abnormality of the force generation mechanism (7), wherein the abnormality detection and estimation part (12) includes: a rolling data output device configured to output rolling data modified by the rolling (swaying) of the vehicle body (2), and a fault evaluation device (14) configured to evaluate whether a particular one of the plurality of force generation mechanisms (7) has failed by comparing the rolling data output from the rolling data output device with a fault evaluation value under a predetermined driving condition, and, if the rolling data is outside a normal range, the fault evaluation device (14) configured to control the force generation mechanisms (7) such that one of the force generation mechanisms (7) is temporarily fixed to soft damping force characteristic and the other(s) is / are fixed to medium damping force characteristic.

A controller (21) serving as a control apparatus controls a shock absorber (7, 10) that serves as a force generation mechanism. The controller (21) comprises a distance delay output processing unit (22E), a pitch rate calculation / determination unit (22J), and a correction value calculation unit (22K). The distance delay output processing unit (22E) determines an estimated unsprung acceleration value on a rear wheel (4) side of a vehicle (1) on the basis of an unsprung acceleration on a front wheel (3) side. The pitch rate calculation / determination unit (22J) detects a nose-down state of a vehicle body (2). The correction value calculation unit (22K) corrects the estimated unsprung acceleration value on the rear wheel (4) side on the basis of output from the pitch rate calculation / determination unit (22J).

The invention relates to an ultrasonic generator for supplying an electrical power for fragmenting calculi, the ultrasonic generator being assignable a sonotrode, an ultrasonic vibration excitation means for exciting a vibration of the at least one sonotrode, and optionally a force generation apparatus for generating a force for moving a projectile for shock excitation of the sonotrode, with the ultrasonic vibration excitation means being excitable at a vibration frequency by means of the ultrasonic generator by supplying an AC voltage, and the ultrasonic generator comprising a measuring apparatus with at least one measuring unit for measuring a time profile of a voltage and / or current, and an open-loop and / or closed-loop control apparatus for adjusting an electrical power suppliable by the ultrasonic generator to the ultrasonic vibration excitation means, with the measuring apparatus comprising at least one resistor arranged in parallel with the at least one measuring unit and optionally a capacitor arranged in parallel with the measuring unit, wherein the measuring apparatus comprises, in parallel with the at least one measuring unit, at least one suppressor diode for suppressing overvoltage. The invention also relates to a lithotripsy device and a method for operating and controlling a lithotripsy device.

Provided is a vane driving device with high space efficiency for electromagnetic force generation. A vane driving device (11) defines a center axis O and includes: a plurality of vanes (8) disposed around the center axis O; two coil sets disposed around the center axis O, each having at least two coils (40) wound around the center axis O and separated along the center axis O; and a magnet (41) disposed between the two coil sets such that a magnetization surface faces the two coil sets, the coils (40) and the magnet (41) generating electromagnetic force in a circumferential direction of a circle centered on the center axis O to drive the vanes. Also provided are a camera device and an electronic device.

Shock absorber (1), comprising: a cylinder (2) containing a hydraulic fluid densely packed therein; a piston (18) which is inserted smoothly and precisely into the cylinder (2) and defines a rod-side chamber (19) and a bottom-side chamber (20) in the cylinder (2); a piston rod (21) comprising an end face section which is fixed to the piston (18) in the cylinder (2) and an opposite end face section which extends out of the cylinder (2) via a rod guide (22); a damping force generation mechanism (41, 42, 197) designed to generate a damping force by moving the piston (18); a cylindrical housing (131, 131A, 131C) with a base; a separating disc (134, 134A, 134C) which is movable relative to the housing (131, 131A, 131C) and forms an inner housing chamber (171, 171A, 171C) between a bottom section (141, 141A) of the housing (131, 131A, 131C) and the separating disc (134, 134A, 134C); and a ring-shaped opposing element (139, 139A, 139C) which is provided on a side of the cutting disc (134, 134A, 134C) opposite the bottom section (141, 141A), opposite the cutting disc (134, 134A, 134C), wherein the inner circumferences of the housing (131, 131A, 131C) and the opposite element (139, 139A, 139C) are fixed by a pin element (194A, 194B, 194C) passing through them, wherein a projecting section (143, 252, 252C) is formed on the bottom section (141, 141A) of the housing (131, 131A, 131C) or the opposite element (139, 139A, 139C), wherein the projecting section (143, 252, 252C) projects towards the cutting disc (134, 134A, 134C) and is designed to restrict movement of the cutting disc (134, 134A, 134C), and wherein a sealing section (158, 158A) is provided on a projecting section (143, 252, 252C) of the cutting disc (134, 134A, 134C), wherein the sealing section (158, 158A) is designed to seal between an outer circumference of the cutting disc (134, 134A, 134C) and the inner circumference of the housing (131, 131A, 131C), wherein an elastic section (159, 159A) is provided between a surface of the separating disc (134, 134A, 134C) which is opposite a surface of the separating disc (134, 134A, 134C) on which the sealing section (158, 158A) is provided and the opposite element (139, 139A, 139C) or the bottom section (141, 141A) of the housing (131, 131A, 131C).

A pedal arm (3) is supported so as to be rotatable on a predetermined rotation axis (CL) with respect to a housing (2), and is operated as being stepped on by a driver. A reaction force generation mechanism (4) applies, to the pedal arm (3), a reaction force against a stepping force of the driver acting on the pedal arm (3). A hysteresis generation mechanism (5) is a separate mechanism independent of the reaction force generation mechanism (4), and has a sliding member (50) and a biasing member (60). The sliding member (50) slides against a sliding surface (SS) of the housing (2), a housing-side component (29) fixed to the housing (2), the pedal arm (3), or a part of a pedal-side component (80) moving together with the pedal arm (3). The biasing member (60) biases the sliding member (50) toward the sliding surface (SS) in a direction parallel to the rotation axis (CL) of the pedal arm (3).

To configure a simpler controllable variable detection device. [Solution] The operation amount detection device 10 comprises an input member 1 to which a swinging operation force is input, a reaction force generation mechanism 2 that generates a reaction force to the swinging operation force, a transmission shaft member 3 arranged on a reference axis X, a support mechanism 4 that swingably supports the transmission shaft member 3, a connecting mechanism 5 that connects the transmission shaft member 3 and the reaction force generation mechanism 2, and an operation amount sensor 6. The input member 1 is connected to the input part 34 of the transmission shaft member 3, the connecting mechanism 5 is connected to the output part 35 of the transmission shaft member 3 which is spaced apart in the axial direction L from the input part 34, and the operation amount sensor 6 is positioned between the input part 34 and the output part 35 in the axial direction L, and detects at least one of the amount of rotation and twist of the transmission shaft member 3.

To provide an inducing device capable of excellently inducing a user to change the direction of walking of the user.SOLUTION: An inducing device (1) according to the present disclosure is an inducing device for inducing a user to change direction in walking of the user, and includes a detection unit (2) configured to detect a supporting leg of the user, a determination unit (3) configured to determine whether the supporting leg of the user is a right leg or a left leg of the user, a setting unit (4) configured to set a direction of change in walking of the user, a turning force generation unit attached to a preset first part of the user and configured to cause a trunk of the user to turn, and a control unit (8) configured to control the turning force generation unit based on a determination result of the supporting leg of the user and the direction of change in walking of the user.SELECTED DRAWING: Figure 1

A control device controls a generation force of a force generating mechanism including a permanent magnet and an armature that generate an adjustable force between a first member and a second member. The control device includes: a command value acquisition unit that acquires a generation force command value of the force generating mechanism; a relative displacement acquisition unit that acquires a relative displacement of the permanent magnet and the armature; a movement direction command acquisition unit that acquires a movement direction command of the armature with respect to the permanent magnet from the generation force command value; and an actual movement direction acquisition unit that acquires an actual movement direction of the armature with respect to the permanent magnet from the relative displacement. The generation force command value is corrected by acquiring a correction value based on the movement direction command and the actual movement direction.

The invention relates to the technical field of fitness equipment, and discloses a chest pushing training machine which comprises a training mechanism and a traction mechanism, the training mechanism comprises a machine frame, a cushion frame, two sets of sliding frames, an arm strength frame, two sets of handles, a shoulder pad frame, an adjusting pipe and a front pedal and is used for chest pushing training, and the traction mechanism comprises a vertical frame, a pulley, a traction rope and a guide rod. The training mechanism is arranged on the right side of the traction rope and is matched with the training mechanism to conduct balance weight resistance transmission, the weight adaptation mechanism comprises a gear knob, an adjusting box and a training box, and the gear knob of a pressure bearing plate is installed in the middle of the right side handle; the real-time training state of a user is reflected on the basis of the actual stress condition of the traction rope in the training process, an unstable force generation signal is captured in advance, the user can recover physical strength with the help of low resistance without stopping action through transient resistance reduction buffering, and effect damage caused by training interruption and sports injury during exhaustion are avoided.

An electric propulsion unit for generating propulsion force in an electric moving body includes an electric motor for driving a propulsion force generation member, an operation unit, and a control device. The operation unit is displaceable in normal and reverse directions from a neutral position. The control device controls the electric motor to achieve a target output torque set based on an operation amount of the operation unit. The control device sets the target output torque to a positive value when the operation unit is operated in the normal direction during forward rotation of the electric motor, sets the target output torque to a negative value when the operation unit is operated in the normal direction during reverse rotation of the electric motor, and sets the target output torque to a negative value when the operation unit is operated in the reverse direction during forward rotation of the electric motor.

The utility model discloses a bird wing flight lift force simulation test device which comprises a bird wing model, pressure detection parts are sequentially arranged on the upper surface and the lower surface, facing airflow, of the bird wing model respectively in the advancing direction of the airflow, and pressure indication parts are arranged at the positions, corresponding to the pressure detection parts, of the bird wing model. The pressure detection parts are connected with the pressure indication parts, and the pressure indication parts display air pressure values detected by the corresponding pressure detection parts; the surface of the bird wing model is also provided with a flow velocity display part at a position corresponding to each pressure detection part, and the airflow pushes the flow velocity display part to display the corresponding flow velocity. The pressure detection component, the pressure indication component and the flow velocity display component are arranged, so that the change rule of pressure and flow velocity at each position can be visually seen in the experiment process; a pressure detection part and a flow velocity display part are arranged at the upper and lower positions of the bird wing model, so that the reason of lift force generation can be learned conveniently.

The invention relates to the technical field of torque testing, and discloses a bottle cap torque testing device applied to filling body packaging, which comprises a torque tester body, a bearing plate is arranged at the input end of the torque tester body, a sliding plate is slidably mounted on the bearing plate, and a clamping roller is mounted on the sliding plate. Under the dual action of clamping of the transverse rubber clamping rollers and pressing of the longitudinal arc-shaped pressing plate, the bottle body is firmly positioned in all directions, the rubber clamping rollers at the transverse end are oppositely attached to the side wall of the bottle body, the rubber material avoids clamping damage and strengthens friction adhesive force, and the arc-shaped pressing plate at the longitudinal end is attached to the curved surface of the top of the bottle body, so that the bottle body can be firmly positioned. Pressing force is evenly dispersed, pressure is stably applied through a rocker arm and threaded rod linkage structure, and the pressing force is accurately controlled through a limiting component; the dual-positioning cooperative force generation enables the bottle body not to deviate, shake or rotate during the test, reduces the torque signal distortion caused by the displacement of the bottle body, guarantees the accurate transmission of the torque data, and provides a core support for the reliability of the test result.

The utility model relates to the field of training instruments, and discloses a rowing machine which is characterized in that the rowing machine comprises a rowing machine body, the rowing machine body comprises a force generation assembly, and the force generation assembly is used for providing rowing resistance; the frame body is arranged in the first direction, and one side of the frame body is fixedly connected with a rowing machine body; the pull rod is connected with the force generation assembly through the pull rope, and when the pull rod is pulled in the first direction, the force generation assembly rotates synchronously; a plurality of guide positions are arranged among the guide assembly, the pull rod and the force generation assembly at intervals in the second direction, the guide positions are used for arranging the guide assembly, and the pull rope penetrates through the guide assemblies at different guide positions so as to adjust the initial height of the pull rod in the second direction. According to the rowing machine, the initial height of the pull rod can be adjusted so as to adapt to exercising people of different heights.

The invention discloses a self-resetting variable damping force generation method, an energy consumption structure and a shock isolation device and method, and relates to the technical field of shock absorption. The method comprises the following steps that S1, a variable damping shell with an inner cavity is arranged, and a liquid inlet and a liquid outlet are formed in the two ends of the variable damping shell; s2, a sliding variable damping core piece is arranged in the shell; s3, forming an inner passage in the core part to form a through liquid path; s4, the end, facing the liquid outlet, of the core piece is in a cone shape, and the liquid outlet comprises a round hole part; s5, driving a liquid medium to be injected into a liquid inlet by means of movement of an external oil cylinder and a piston; s6, the medium is shunted, one part of the core pushing piece faces the liquid outlet, and the other part of the core pushing piece moves towards the liquid outlet through the inner passage; and S7, damping force is generated along with the movement speed change of the core piece. The outlet area of the variable damping part can be adjusted in real time, the damping force is automatically adjusted according to the external load or speed, optimal energy dissipation is achieved under different seismic intensities, and the seismic performance and the adaptive capacity of the structure are enhanced.

The utility model relates to the field of training instruments, and discloses a bird training device which is characterized in that the bird training device comprises a training device body, the training device body comprises a force generation assembly, and the force generation assembly provides pulling resistance in a mode of winding a pull rope; the pull rod is connected with the force generation assembly through the pull rope, and when the pull rod is pulled, the force generation assembly rotates synchronously; one or more guide positions are arranged between the pull rod and the force generation assembly at intervals in the first direction, the guide positions are used for arranging the guide assembly, and the pull rope penetrates through the force generation assembly in the first direction so as to adjust the trend of the pull rope. The flying bird training device is small in occupied area.