107 results about "Effective force" patented technology

A bicycle hydraulic disc brake master cylinder includes a housing having a bar clamp at one end configured for fastening the housing to a bicycle handle bar, the bar clamp receiving the handle bar along a clamp axis. A handle is pivotably connected to the housing to pivot about a pivot axis in operative association with a piston train to impart a drive force on the piston train. The handle defines a finger receptacle receiving at least one finger of a user defining an effective force point at a select distance from a distal end of the handle. A select ideal finger actuation path for the at least one finger of a user begins at a start point at the effective finger force point with the handle at an engagement point where the handle begins to drive the piston train against operative fluid resistance and extends along a line from the start point at a select angle relative to the clamp axis. A pivotable connection is provided between the handle and the housing and is located on the housing relative to the clamp axis so that with the handle actuated by a force applied to the effective finger force point along this select ideal actuation path, a mechanical advantage to the user resulting from the handle actuation does not diminish more than three percent as the handle is pivoted between the engagement point and a fully actuated position.

This is a dust mop handle and method in which the handle has a plurality of arcuate and straight segments including means to attach a dust mop to one end; unique hand holding means providing for bi-planar holding and movement of the dust mop handle in such manner that the effective force being applied to the dust mop is multiplied and enhanced and strain on the user is reduced.

The invention discloses a resilient four-link mechanical leg and a test platform thereof. The resilient four-link mechanical leg comprises a large leg and a small leg both in strip shapes, the lower end of the large leg is hinged to the upper end of the small leg to form a knee joint, a driven wheel is fixedly connected to the small leg, a first motor is fixed to the upper portion of the large leg, a driving wheel fixedly sleeves an output shaft of the first motor, and the driving wheel is connected with the driven wheel through a synchronous belt; the middle of a strip foot is hinged to the lower end of the small leg, and a first damping spring is connected between the upper end of the foot and the upper portion of the large leg; thus the resilient four-link mechanical leg with timely response, accurate control and effective force transmission is provided; the resilient four-link mechanical leg is disposed on a conveying belt, a supporting seat fixed relative to the conveying belt is arranged, a support rod is mounted on the supporting seat, a connecting block is fixed to the support rod, a second motor is fixed to the connecting block, an output shaft of the second motor is fixedly connected with the upper end of the large leg of the resilient four-link mechanical leg, and a mechanical leg test platform small in size and simple in structure is provided.

The invention discloses an orthogonal piezoelectric displacement amplifying mechanism which is in a diamond symmetrical structure. Two diagonals of the diamond are mutually perpendicular but not equal in length. Laminated piezoelectric ceramic is disposed along the long diagonal of the diamond. Two corners along the short diagonal of the diamond are provided with a fixed surface and a stress surface respectively. The fixed surface and the stress surface are parallel with the laminated piezoelectric ceramic. Compared with common displacement amplifying mechanisms, the orthogonal piezoelectric displacement amplifying mechanism has the advantages of high amplifying ratio, large output force, fast response, simple structure, easiness in processing, convenience in use, easiness in modularization, resistance to electromagnetic interference and the like. Effective force output is maintained while piezoelectric displacement amplification is achieved. The orthogonal piezoelectric displacement amplifying mechanism is also excellent in dynamic performance. Therefore, as a driver, the orthogonal piezoelectric displacement amplifying mechanism has important value of application to the fields of micrometric displacement mechanical systems, micrometric displacement positioning, proportional values and pumps, nozzles, optical precision instruments, aerospace control and the like.

The invention provides a force measuring method of a ventilation model under the condition of a free jet wind tunnel test. The force measuring method of the ventilation model under the condition of the free jet wind tunnel test comprises the following steps that a ventilation model force measuring device is designed, specifically, the ventilation model, a measurement balance, a base, a tail support rod and a hot air flow blocking assembly are included, wherein the measurement balance is arranged in the ventilation model and used for measuring the aerodynamic performance of the ventilation model; the tail support rod realizes the supporting of the ventilation model in a tail support mode, one end of the tail support rod is arranged on the base, the other end of the tail support rod is connected with the measurement balance, and the tail support rod is not in contact with the inner wall of the ventilation model; the hot air flow blocking assembly is arranged between the tail support rodand the inner wall of the ventilation model, so that the tail support rod and the inner wall of the ventilation model are not in contact, and the hot air flow blocking assembly is used for reducing the flow velocity of hot air flow entering the tail of the ventilation model in the ventilation model; the ventilation model force measuring device is placed in a free jet wind tunnel; and the wind tunnel test is carried out to obtain effective force measuring data. According to the force measuring method of the ventilation model under the condition of the free jet wind tunnel test, the technical problems such as the inaccuracy of the model force measuring due to the inability to completely simulate the real flight environment of an aircraft in a conventional wind tunnel in the prior art can besolved.

A high-performance propeller has one hub and a plurality of blades, characterized in that a double-side or a single-side arc brim is provided at the tip of each blade. The propeller of the invention can provide a small induced drag and convert the centrifugal force to the effective force so as is to increase the differential pressure near the tip of blades and thereby increase the acting force on blades. Under the condition of same power consumption, it has been tested for the large propeller in the type of lateral inclination that the amount of flow is increased about 12%˜17%, which is equivalent to save energy 40%˜70%. Since the fluid dynamic performance presents the aspect ratio approaching infinity, the width of the blades can be increased whereas the induced drag is not increased. Applying the method of increasing the area of the blades and decreasing the velocity of outflow fluid, the effect on saving of energy can be further improved greatly on the present basis.

The invention discloses a D-column structure for an automobile and a D-column structure manufacturing method, and belongs to the field of automobiles. The D-column structure for the automobile comprises a side wall assembly, a lower body assembly, a top cover outer plate, a rear roof beam reinforcement plate and a rear roof beam inner plate. The upper end of the side wall assembly, the top cover outer plate, the rear roof beam reinforcement plate and the rear roof beam inner plate are fixedly connected, the lower end of the side wall assembly is fixedly connected with the lower body assembly, the side wall assembly comprises a side wall outer plate assembly and a side wall inner plate assembly, and the side wall inner plate assembly comprises a D-column reinforcement plate assembly and a rear inner plate assembly, wherein the rear inner plate assembly is provided with a partition piece which is used for enhancing bearing capacity of a body. According to the invention, in the structure, partitions are arranged, so that the rigidity mode is effectively enhanced; a D-column reinforcement plate extends to a rear wall connection plate, so that an effective force transfer path is formed; the welding position between the D-column reinforcement plate and a top cover rear roof beam upper connection plate avoids skeleton welding joints, so that the technology difficulty is lowered and the work efficiency is improved.

The invention provides a test method for cyclic fatigue life under the condition of piezoelectric materials force electric coupling, which comprises the following steps of: loading an electric field while measuring a mechanical property; introducing circuits on an upper end and a lower end of a sample so as to directly load an electric field; loading in various compounding forms such as circulation alternating stress and a steady electric field, steady stress and a circulation alternating electric field, and monotonous stress and the steady electric field to realize an effective force electric field coupling function, and thereby testing the cyclic fatigue life of piezoelectric materials under a force electric coupling field. The test method is simple and is suitable for small-size flaky materials, and the test cost is saved; and after the cyclic fatigue is applied, the residual strength of the materials can be tested directly, so that a position of the cyclic fatigue test and a position of the residual strength performance are kept in the same place, the effectiveness of the test result is ensured, and the cyclic fatigue life of the piezoelectric materials under the condition of force electric coupling is obtained.

The invention relates to a force-transferring device for a shallow pit base plate and a deep pit strut. The force-transferring device is arranged between the shallow pit base plate and the deep pit strut and is located on the lower side of the shallow pit base plate; the force-transferring device is provided with an additional declining section, a base plate cushion layer and a base plate additional element; the additional declining section has a certain preset gradient; the base plate cushion layer is formed at the bottom of the additional declining section; the base plate additional element is formed on an upper surface of the additional declining section; and the preset gradient is formed by a horizontal section and a slope section of the additional declining section. According to the invention, the force-transferring device is arranged between the shallow pit base plate and the deep pit strut, so that the construction is synchronously performed in the construction stage of the shallow pit base plate, the effective force transfer is formed by the shallow pit base plate and the deep pit strut, the subsequent structure joint is conveniently finished without chiseling and removing a top beam ring embosoming the deep pit, and the construction difficulty of the subsequent structure joint is relieved.

The invention discloses a steel bar full-grouting sleeve for prefabricated concrete strong connection. The steel bar full-grouting sleeve comprises a grouting sleeve body with a cavity provided therein, two ends of the grouting sleeve are steel bar insert segments with different apertures to connect vertical steel bars with different diameters, and are connected through a variable diameter through hole, the variable diameter through hole is provided with a steel bar spacing plate, the inner wall of the cavity in the grouting sleeve body is provided with rectangular projection shear connectors, adjacent shear connectors form an annular shear slot in order to enhance the binding occlusion force between a grouting material and the grouting sleeve, two ends of the grouting sleeve body are respectively provided with a grouting hole and a pulp discharging hole, and one end or two ends of the grouting sleeve body is / are provided with a structure for installing one or two sealing gasket(s). The steel bar full-grouting sleeve can solve the connection problem of vertical steel bars with different diameters in the prefabricated concrete strong connection, and ensures effective force transfer of the vertical steel bars with different diameters.

The invention discloses an upper limb and hand functional rehabilitation apparatus which comprises an arm sleeve, an air cushion, a strap, first connecting pipes, balloons, a protective pad, a fixingsleeve, a tightening slide bar, a sleeve, second connecting pipes, a shell, a temperature controller, a heater, a heat conduction plate, a motor, a rotary shaft, cams, a connecting seat, first inflators, first pistons, springs, second inflators, second pistons, a slide groove, an electric push rod and a slide bar. The upper limb and hand functional rehabilitation apparatus has the advantages thatthe upper limb and hand functional rehabilitation apparatus is ingenious in structure and has powerful functions; the arms and the backs of patients can be compressed in a point contact manner under effects of inflatable blood activating massage mechanisms, accordingly, the subcutaneous nerve tissues can be stimulated, and the blood circulation can be promoted; exercise rehabilitation on functional positions of the upper limbs of the patients can be reinforced under matching effects of arm swing and back flexure mechanisms, accordingly, effective forced movement of the upper limbs of the hemiplegic patients can be guaranteed, and the purpose of effectively clinically popularizing and applying the upper limb and hand functional rehabilitation apparatus can be ultimately achieved.

The invention relates to a valve (1) to ensure pressure compensation between subchambers (21, 22) of a hydraulic damper (2), wherein the valve (1) comprises a first side (100) for connection to a first subchamber (21) and a second side (200) for connection to a second subchamber (22), the valve (1) is designed to shut off in its rest position a flow of fluid between the two sides (100, 200) and comprises, when deflected from its rest position, a passage channel with a passage cross-section for admitting the flow of fluid, the valve (1) comprises two valve elements (3, 4) guided towards each other and movable towards each other along a path of movement in a movement direction x, one of the two valve elements (3, 4) is designed as a moving element (4) and the other valve element as a seat element (3), a pressure can be applied to the moving element (4), on the load side thereof, by a fluid coming from the first side (100), generating an effective force for moving the moving element (4) in the moving direction x, and the moving element (4) is connected to a spring system (5) which applies to the moving element (4) a spring force, generating a restoring force opposite to the effective moving force. At least one of the valve elements (3, 4) comprises a cylinder section comprising a plurality of passages (6), the passage channel runs through at least some of the passages (6) and the passage cross-section is limited by a cross-section of these passages (6), while the other valve element (3, 4) comprises a closed cylindrical surface (7) which lies on the one valve element (3, 4) in the rest position, shutting off the flow of fluid, and the passage cross-section can be adjusted by the deflection of the valve (1) as a result of the movement of the moving element (4) towards the seat element (3) in the direction of movement x, the passage cross-section increasing with the deflection.

Method and apparatus for imparting movement to one or more articles includes placing the one or more articles on a surface of a support member and imparting vibratory motion to the support member by vibrating actutators connected to the support member wherein the vibratory motion includes at least a rotational vibratory component about one or more axes out-of-alignment with the gravity vector to produce effective force fields on the surface.

The invention relates to an apparatus for manipulation of an optical element (7) in up to six degrees of freedom with respect to a structure (8) via at least three actuator devices (9). The actuator devices (9) each have at least two force-controlled actuators, which each produce an effective force along one degree of freedom, with linking points (11) of the actuator devices (9) acting directly on the optical element (7).

A walk controller (30) for a biped (two-footed) walking mobile system, which drive-controls each joint drive motor (15L, 15R-20L, 20R) of each leg portion (13L, 13R) of a biped walking mobile system based on gait data, includes a force detector (23L, 23R) to detect the force allied to a sole of each foot portion (14L, 14R), and a compensator (32) to modify the gait data from a gait former (24) based on the force detected by a force detector, and is constituted so that each force detector (23L, 23R) comprises at least three 3-axial force sensors (36a, 36b, 36c) allocated on a sole of each foot portion (14L, 14R), and a compensator (32) modifies gait data based on the detected signals from three 3-axial force sensors (36a, 36b, 36c) which detect effective force, thereby the walk stability of a robot is realized, even on the unstable road surface condition with complex roughness.

The invention discloses a pneumatic-vibratory device for ordered rice transplanting, comprising two identical seedling-separating device, a vibrating-mechanism driving vibrating conveying board which is mounted in the frame by flat spring, the surface for potted seedling feeding of the vibrating conveying board having spike-tooth which can adjust the direction of potted seedling with the action of effective force, the side shield of the vibrating conveying board is wider in the initial part and then gradually becomes narrower, then followed by the leaf grating for the air flow passage and keeping the potted seedling upright, the lower part of the leaf grating is connected with air supply, the lateral section is groove which is similar to the spotted seedling stoup in the shape, blocks are equipped in each exit of the groove, the front end of the block is equipped with seedling-shifting wheel whose number equals to the groove and is drived by shifting wheel axle, each connected with introductory pipe in the front of the seedling-shifting wheel. The two shifting wheel axle are supported in the supporting base, the seedling storage tank is fixed in the middle of the cradle; the power are connected with vibrating device and air supply separately, the reducer casing of the seedling-shifting wheel is connected to the seedling-shifting wheel through the shifting wheel axle; the cradle is fixed to the carriage, which connected with dragging device. The device combines the vibrating conveying and airflow, which can realize automatic ordering and rice transplanting.

The invention provides a C-column reinforcing plate connecting structure which is large enough in torsion rigidity and not likely to crack. The structure comprises a C-column reinforcing plate, the upper end of the C-column reinforcing plate extends to a boundary beam of a car body, the lower end of the C-column reinforcing plate is welded to the outer side of a back wheel cover outer plate, the back wheel cover outer plate and a back wheel cover inner plate are welded into a whole, a back wheel cover inner plate reinforcing plate is arranged at the inner side of the back wheel cover inner plate, the upper end of the back wheel cover inner plate reinforcing plate extends convexly to the upper portion of the back wheel cover inner plate to be welded to the back wheel cover outer plate, andthe C-column reinforcing plate and the back wheel cover inner plate reinforcing plate are welded into a whole. According to the scheme, the C-column reinforcing plate and the back wheel cover inner plate reinforcing plate are connected, a precise and effective force transfer path is formed between the C-column reinforcing plate and the back wheel cover inner plate, smooth stress transfer is ensured, local stress concentration is avoided, and energy is effectively absorbed. The whole transfer path forms a complete C ring, so that the torsional rigidity of the whole car body is improved, cracking of the car body is avoided, and jolting of the car body is lowered.

The invention relates to a method of monitoring of a kinematically redundant robot (1). The method comprises the following steps: detecting joint force actted on a robot; determining reference points (TCP) specific to the robot and external effective force between surroundings; based on the detected force, determining another monitoring parameter irrelevant to the external force specific to the robot; and monitoring the determined external effective force and the other determined monitoring parameters (S50, S60).

A method for determining the thrust of at least one engine, which is held on a supporting structure of a vehicle, includes the steps of acquiring the elongation of at least one structural element onto which the thrust of the at least one engine acts, by means of at least one strain gage; calculating the force causing the elongation in the at least one structural element, taking into account the materials characteristics of the structural element; and determining the thrust of the at least one engine as an effective force component in the direction of thrust of the vehicle. It is thus not necessary to carry out an estimate of the thrust on the basis of other physical variables such as shaft speeds, pressure or exhaust gas temperature of engines.

An oxygen sensor removal tool includes an axial throughbore with an oxygen sensor socket bore at one end and a socket drive bore at the opposite end, and further including a radially extending drive socket arm with a drive socket opening so that the tool may be placed over an oxygen sensor and a socket drive or other drive may be attached to the tool to provide for effective force to permit adequate torque to disengage the oxygen sensor from a vehicle exhaust system.

The invention discloses a plastic bracket structure of a motor with a replaceable carbon brush, belonging to the technical field of motor parts and comprising two fully symmetrical external small cavities, wherein a plastic column, a brush box, a carbon brush spring, a carbon brush assembly and a terminal assembly are arranged in the small cavities; the carbon brush spring is located on the plastic column; the carbon brush assembly comprises a carbon brush, a brush cord and an insertion spring, and the tail part of the brush cord is fixedly connected with the insertion spring; the terminal assembly comprises a brush box bottom board, a plug terminal, a plug terminal connection hole and a lead, and the insertion spring of the carbon brush assembly is in splicing connection with the plug terminal of the terminal assembly; the terminal assembly is linked with the plastic bracket by a riveted way; the carbon brush spring is a constantforce spring, the contact part of the carbon spring andthe bottom of the carbon brush is in an arc shape; and the lead is in pressure welding connection with the plug terminal connection hole. The invention has the advantages that the carbon brush assembly can be rapidly replaced through inserting and pulling the insertion spring; the constantforce spring has stable effective force and no angle change after abrasion, can reduce the commutation spark and prolong the service life of the motor; the lead is in pressure welding connection with the plug terminal, thereby ensuring the connection intensity and keeping favorable conductivity.

A low-profile burst disk assembly for safely venting excess pressure from a pressurized fluid system by way of a tortuous fluid flow path. A burst disk plug includes a male thread and is thereby adapted to thread into the body of a pressurizable chamber. The burst disk plug further includes a fluid receiving port placed in fluid communication between the burst disk and one or more bleed channels open to ambient pressure. The one or more bleed channels generally run axially through the burst disk plug, either intersecting or bypassing the male thread. Embodiments with a plurality of bleed channels generally include a distribution manifold positioned in fluid communication between the fluid receiving port and the one or more bleed channels to ensure an even distribution of venting pressure among the bleed channels. A flange surface further deflects pressurized fluid as it escapes from the bleed channels toward the ambient environment, thereby dispersing the resulting thrust in multiple directions and minimizing the effective force exerted on the body of the pressurized fluid system.

The invention relates to a pressure sensor (1) with a housing (2), a sensor device (4), a sensor fastening device (8, 8b) for fastening the sensor device (4) onto and / or in the front area of the housing (2), and a seal (7) for sealing the transitional area between the housing (2) and the sensor device (4), where the housing (2) exhibits an inside housing wall (2W) and the sensor device (4) exhibits an outside sensor device wall (4W), such that the housing wall (2W) and the sensor device wall (4W) run in adjacent fashion one to the other and exhibit between the housing wall (2W) and the sensor device (4W) a reception space (6) for receiving the seal (7). Small dimensions are advantageously achieved in that the sensor fastening device exhibits the reception space (6) and the seal (7), and the seal (7) between the housing wall (2W, 2W*) and the sensor wall (4W) is mounted in such a way that the seal (7) creates an effective force (F) in the direction of the housing wall (2W, 2W*) and the sensor wall (4W), and the two are braced against each other by the force (F). The invention also relates to a corresponding process for mounting a pressure sensor of this kind.

The invention discloses a motor vehicle and a cam-type pushing force brake apparatus of an electric vehicle. The motor vehicle comprises a brake baseboard, a locating mechanism, a reset spring, a brake arm, a camshaft and two brake shoes; the locating mechanism is arranged among said brake shoes and the brake baseboard, wherein said brake shoes are respectively provided with a brake pad, the camshaft is rotationally connected with the brake baseboard and the brake arm is detachably connected with the camshaft; the motor vehicle further comprises a brake cylinder which is arranged on the brake baseboard, a cavity for rotating the cam part on the camshaft is arranged in the brake cylinder, the brake cylinder is longitudinally provided with two first through holes which are respectively arranged on both ends of the brake cylinder, the brake cylinder is radially provided with a second through hole and a third through hole, and the first, second and third through holes are respectively connected with the cavity; an adjusting mandrel is arranged in the first through hole. The motor vehicle can overcome disadvantage that the utilization rate of the brake pad of the mechanical braking device is low and the effective force arm isn't adjustable in the existing technology.