38results about How to "Reduce rotational force" patented technology

Disclosed herein is an electronic disc brake in which driving force of a motor may be transmitted to a gear unit in a serial manner. The electronic disc brake which has a carrier, a caliper housing, a pair of pad plates disposed at both sides of a disc, and a piston installed within a cylinder part and pressing one of the pair of pad plates toward the disc, includes a spindle member passing through the rear wall of the caliper housing and rotated within the cylinder part, a nut member screw-connected to the spindle member and pressing the piston or releasing pressing of the piston, a motor generating driving force, and a cycloid reducer amplifying the driving force generated from the motor and transmitting the amplified driving force to the spindle member, and the motor, the cycloid reducer and the spindle member are coaxially connected in series.

The present invention relates to an aerodynamic dead zone-less triple-rotor integrated wind power driven system wherein control rotor 81 disposed at up-wind is rotated at a high speed. It induced the air flowing into the hub of extenders 71 of the auxiliary rotor 71 to the outside of the extenders 71-1 of the auxiliary rotor 71, thereby forming an aerodynamic annular stream tube zone and increasing the air density therein, the main rotor 11 disposed at down-wind, is aerodynamically accelerating and improving the system efficiency. In addition, the rotor 52 and stator 51 of the electromagnetic attraction dragging rotational torque of the auxiliary generator by the load assists to rotate main rotor 11, thereby the triple rotors integrating rotational torque generates the twin generators 4 and 4-1″ of the wind turbine.

A rotor blade having a wing and beam construction for a tip shroud is disclosed. Various construction details are developed for providing the shroud with a depression in the shroud and a transition zone that extends from the suction side and pressure side of the airfoil to provide a flow path surface of the shroud. In one detailed embodiment, the tip shroud has a depression generally outwardly of the airfoil and generally following the curve of the pressure and suction sides of the airfoil from the leading edge region to the trailing edge region.

An in-wheel assembly is provided, and the in-wheel assembly includes an in-wheel actuator and a wheel. The in-wheel actuator includes a driving motor; a decelerator which is disposed inside the driving motor and configured to reduce a rotational speed of the driving motor; and a hollow shaft which is disposed inside the driving motor and configured to transfer a rotational force of the driving motor to the decelerator, which is accommodated in a hollow of the hollow shaft, and circulates fluid inside of the driving motor with respect to a surface of the decelerator when driven to rotate by the driving motor. The wheel accommodates the in-wheel actuator and receives a rotational speed reduced by the decelerator to rotate.

A bicycle control apparatus is basically provided for controlling a bicycle in which a first rotational force of a crank and a second rotational force of an electric riding assistance motor for riding assistance are transmitted to a rear sprocket. The bicycle control apparatus includes a rotational force detector and a controller. The rotational force detector is configured to detecting the first rotational force imparted to the bicycle crank. The controller is programmed to reduce the second rotational force of the electric riding assistance motor to actuate a transmission of the bicycle in accordance with the first rotational force detected by the rotational force detector.

Disclosed herein is an electronic disc brake. The electronic disc brake includes a carrier on which a pair of pad plates are mounted, a caliper housing, which is slidably installed on the carrier and is provided with a cylinder having a piston mounted therein, a pressure device installed within the cylinder, the pressure device converting rotational motion into rectilinear motion to press and release the piston, the pressure device having an output key which protrudes by penetrating a rear wall of the caliper housing, a motor mounted on an outer surface of the caliper housing to generate drive force, a reducer coupled with a rotary shaft of the motor to amplify the drive force, and a coupling interposed between the reducer and the pressure device to transmit the amplified drive force to the pressure device, wherein the motor, the reducer, and the pressure device are coaxially connected in series.

A connector (C) is formed by insert molding such that terminal fittings (10) are embedded in a housing (20). A connecting portion (10A) provided at the front end of the terminal fitting (10) for connection to a mating terminal fitting projects forward from the housing (20) and a part of the terminal fitting (10) located behind the connecting portion (10A) is embedded in the housing (20). A seal (15) is provided in close contact with an embedded portion (10C) of the terminal fitting (10) embedded in the housing (20) and a resilient portion (19) is provided at a position before the seal (15) and outside the housing (20).

The present invention relates to a rollable flexible display apparatus to which an operation-force conversion apparatus is applied, wherein the operation-force conversion apparatus converts an unfolding or a folding operation-force linearly applied by a user to a housing of the rollable flexible display apparatus without the application of a motor or a spring into a rotation force with which a roller can rotate using the screw thread principle through an internal mechanical component, and conveys the converted rotational force to the roller.

Electric power steering apparatus includes an electric motor for producing steering assist torque corresponding to steering torque applied to a steering system, and a worm gear mechanism for transmitting the steering assist torque to the steering system. The worm of the worm gear mechanism has a pressure angle greater than a pressure angle of the worm wheel, so as to reduce an actual meshing pitch circle diameter of the worm in the worm gear mechanism.

Disclosed is an electronic disc brake. The electronic disc brake includes a disc configured to rotate with vehicle wheels, a caliper housing configured to operate pad plates installed at both sides of the disc, and an actuator having a piston provided inside the caliper housing to press the pad plates to adhere the pad plates to the disc, a spindle rotatably installed at the caliper housing to reciprocate the piston, an electric motor configured to rotate the spindle, and a decelerator configured to transmit a rotational force of the electric motor to the spindle. The decelerator includes a power connection unit connected to the electric motor, planetary gear units configured to connect the power connection unit to the spindle, and a center pin configured to pass through the power connection unit and the planetary gear units. The power connection unit includes a driving gear provided at a shaft of the electric motor and a driven gear connected to the planetary gear units. The planetary gear units each include a sun gear, a plurality of planetary gears engaged to an outer portion of the sun gear, a ring gear which is an internal gear configured to accommodate the planetary gears, and a carrier installed to rotatably support the planetary gears and coaxially rotate with the sun gear and configured to and to output a rotational power. The center pin is press-fitted and fixed to the sun gear of the planetary gear unit.

A system for active dynamic balancing of a rotating tool driven by a motor having a shaft supported by a first and second bearing on opposing sides of the motor includes an acceleration sensing assembly configured to sense radial accelerations on the shaft producing an acceleration signal indicative of the radial accelerations. A correcting mass assembly is configured to rotate with the shaft and to move at least one mass radially to the shaft responsive to a correcting signal. A controller is configured to receive the acceleration signal generating a correcting signal by means of a closed loop iterative algorithm.

A bicycle control apparatus is basically provided for controlling a bicycle in which a first rotational force of a crank and a second rotational force of an electric riding assistance motor for riding assistance are transmitted to a rear sprocket. The bicycle control apparatus includes a rotational force detector and a controller. The rotational force detector is configured to detecting the first rotational force imparted to the bicycle crank. The controller is programmed to reduce the second rotational force of the electric riding assistance motor to actuate a transmission of the bicycle in accordance with the first rotational force detected by the rotational force detector.

A power transmitting device that allows a rotation driving unit to stably rotate at a constant angular velocity while overcoming an effect of backlash of a gear which is an element to transmitting power, a drive transmitting apparatus of an image forming apparatus that employs the power transmitting device, and an image forming apparatus that employs the power transmitting device. The power transmitting device includes a weighted rotor that has a weight larger than the rotation object and is connected to the rotation object to rotate along with the rotation object; and a viscous member to reduce a rotation force of the weighted rotor due to a viscosity of a fluid filled therein. The power transmitting device prevents change of the rotation speed of the rotation object due to a gear backlash by using the weight of a weighted rotor and a viscous braking force of a damping grease, and the anti-backlash function can be maintained during a long period of operation. Accordingly, when the power transmitting device is applied to a drive transmitting apparatus of an image forming apparatus, an image forming apparatus forming stable images can be realized.

This invention provides a ram for use in a mixer with counter-rotating non-intermeshing rotors on which the central portion of the ram utilizes a apex, either a point or a line produced by a “V” or similar shape, that protrudes a given distance into the mixing chamber and on which the end portions of the ram are either horizontal such that they do not protrude into the mixing chamber at all or are otherwise shaped such that they protrude into the mixing chamber less than the apex of the central portion of the ram.

The invention discloses a rotating drilling rig enabling a soil-discharging push plate to be automatically reset and a construction method thereof. A push and press device (5) is installed on a connecting disc (2) and comprises a push rod (12) and a pressing block (13), the pressing block (13) is provided with a guiding inclined plane (20) and a hook inclined plane (19), the push plate (18) is provided with a clamping seat (16), a clamping hook (14) is hinged to the clamping seat (16) through a hinge (15), and a barrel body (9) is provided with a positioning inclined block (17) which is provided with a positioning inclined plane (21). The clamping hook (14) is provided with a straight rod (22) corresponding positioned with the positioning inclined plane (21), a hook rod (23) correspondingly hooked with the hook inclined plane (19) and a convex surface (25) correspondingly pressed with the guiding inclined plane (20). After the push plate on a drilling bucket is utilized to discharge soil, the rotating drilling rig enables the drilling bucket to be reset to the top inside the barrel body of the drilling bucket so that the push plate has no influence on drilling, the influence on the push plate caused by the upward pushing force and rotating force of the soil in the barrel is reduced, and the reliability of the push plate is improved.

A steering coupling reduces the rotational force felt by a driver should the wheels impact an obstacle. The coupling is particularly suited for vehicles comprising simple, single-unit steering assemblies. The coupling permits a certain amount of slippage between the wheels and the steering wheel without a total loss of steering. The driver may set a threshold torque at which slippage occurs, thereby controlling the “feel” of the steering. The coupling includes a friction disc that permits rotational movement between two housings in the steering assembly.

An in-wheel assembly is provided, and the in-wheel assembly includes an in-wheel actuator and a wheel. The in-wheel actuator includes a driving motor; a decelerator which is disposed inside the driving motor and configured to reduce a rotational speed of the driving motor; and a hollow shaft which is disposed inside the driving motor and configured to transfer a rotational force of the driving motor to the decelerator, which is accommodated in a hollow of the hollow shaft, and circulates fluid inside of the driving motor with respect to a surface of the decelerator when driven to rotate by the driving motor. The wheel accommodates the in-wheel actuator and receives a rotational speed reduced by the decelerator to rotate.

In a tibial component comprising an anchor portion for being fixed in bone and a tray for a sliding plate of polyethylene, the tibial component cooperating with a femoral component which rests on the sliding plate by curved articulation surfaces, it is provided that the sliding plate (1) has an attachment (2) which extends inside the anchor portion (5) of the tibial plateau component (4) and which, distally of the tibial plateau component, is non-rotatably joined to the anchor portion (5) by positive fit.

The invention discloses a reflector adjusting device which is capable of realizing the technical effect of precise reflector position and / or angle adjusting. The reflector adjusting device comprises a reflector, a reflector carrier, an optical engine lower housing, a plurality of adjusting elastic sheets and a plurality of adjusting screws. The reflector is fixed on the front side of the reflector carrier. The back side of the reflector carrier is provided with a plurality of spherical grooves. One end of reach adjusting elastic sheet is clamped to the reflector carrier, and the other end is fixed on the optical engine lower housing. The optical engine lower housing is provided with a plurality of adjusting screw holes corresponding to the plurality of spherical grooves in the back side of the reflector carrier. The heads of the adjusting screws are spherical ends, and the adjusting screws penetrate through the adjusting screw holes of the optical engine lower housing to enable the spherical ends to be abutted in the spherical grooves of the optical engine lower housing. The contact mode between the each spherical end and each spherical groove enables that tangential stress and normal stress of the contact position are very small, and the fine adjustment of the position and / or angle of the reflector is facilitated.

Disclosed is a centrifugal impact wrench using an electric driving motor, which is rotated by electricity supplied from an electric power source, as a power source. The electric impact wrench includes: a sun gear 21 coupled to a rotation shaft 11 of the electric driving motor 10 and rotating; a plurality of planetary gears 22 including first gear 22a engaged with the sun gear 21 and rotating, and second gear 22b having a smaller diameter than the first gear 22a; an output gear 23 engaged with the second gear 22b of the planetary gear 22 and rotating; an inertia wheel 50 rotated by rotation force transmitted from the output gear 23; a spindle 70 rotatably connected to a front portion of the inertia wheel 50 and provided with a connector 71 at a side of the spindle 50; and a blow body 60 hitting the connector 71 when centrifugal force caused by the rotation of the inertia wheel 50 increases over a predetermined extent, and returning to an initial position by means of a return spring 67 when the centrifugal force caused by the rotation of the inertia wheel 50 is reduced below a predetermined extent.

The invention discloses a direct discharging sealing system of a closestool. The system comprises a toilet waste collector, wherein a ball valve is arranged in the lower neck of a cavity neck of the toilet waste collector; the ball valve is provided with a discharge hole; two blind holes are symmetrically arranged on the side walls of the ball valve; one ends of two central shaft assemblies are connected in the two blind holes; the other ends of the two central shaft assemblies penetrate through the cavity neck of the toilet waste collector; the end of any one central shaft assembly, which is arranged outside the cavity neck, is provided with a rod through hole; a first power cylinder is arranged at one side of the toilet waste collector; one end of a piston rod in the first power cylinder goes out of the first power cylinder and is connected with one end of a connecting rod; the other end of the connecting rod is inserted into the rod through hole; a front pipe connector and a rear pipe connector are arranged on the upper surface of the first power cylinder; a second power cylinder device is arranged at the rear part of the toilet waste collector; a time delay unit is connected with the upper surface of the second power cylinder device; a front connector and a rear connector are arranged on the lower part of the side wall of the time delay unit; the front connector and the front pipe connector are connected by a pipeline; and the rear connector and the rear pipe connector are connected by a pipeline. The system has the advantages of high efficiency, water saving, low fault rate and pathogen source isolation.

Disclosed herein is an electronic parking brake which is installed in a vehicle and is operated by a motor. The electronic parking brake having a drum rotating together with a wheel and first and second brake shoes includes a motor rotated in normal and reverse directions and generating driving force for braking, a cycloid reducer connected to a rotary shaft of the motor and amplifying the driving force generated from the motor, a spindle member connected to the cycloid reducer and rotated, a spur gear assembly rotated by rotary force transmitted from the spindle member, a piston rotated and provided with the outer circumferential surface on which one gear of the spur gear assembly is integrally formed, and a push rod unit installed at both ends of the piston in the longitudinal direction, rectilinearly moved according to rotation of the piston and supported by the first and second brake shoes.

The invention relates to the technical field of power-assisted oil cylinders, and discloses a power-assisted steering oil cylinder with a stroke unloading valve. The oil cylinder comprises a cylinder body and a piston connected in the cylinder body in a sliding manner, the piston divides the cylinder body into a rod cavity and a rodless cavity, the two ends of the cylinder body are fixedly connected with end covers, the piston is provided with at least two runners communicated with the rod cavity and the rodless cavity, a control mechanism used for enabling the flow channel to be opened and closed is connected in each flow channel, a first trigger mechanism is connected between at least one control mechanism and the end cover on one side of the rodless cavity, and a second trigger mechanism is connected between at least one control mechanism and the end cover on one side of the rod cavity. The problems that a steering system and a limiting structure are low in stability and short in service life when a vehicle uses a power-assisted oil cylinder in the prior art are solved.

A webbing take-up device includes a spool. The webbing take-up device also includes a lock base and a coupling member that are provided so as to rotatable as an integral unit with the spool, and that engage with a rack so as to be rotated and to rotate the spool in a take-up direction when the rack is moved. The webbing take-up device further includes a rack housing section that includes a pair of wall spaced apart from each other in a rotation axis direction of the lock base and the coupling member so as to form a space in which the lock base and the coupling member are disposed. The rack housing section is provided with an abutted portion that is abutted by a part of the coupling member so as to restrict the lock base and the coupling member from moving in the rotation axis direction.