Patent application number | Description | Published |
20090320626 | Actuator - An actuator comprises a motor that drives a screw to rotate through a pulley mechanism and a reduction mechanism. The actuator is advantageous by easy assembly, easy replacement of the reduction mechanism and easy reconfiguration of the motor and the reduction mechanism. | 12-31-2009 |
20100186529 | Linear actuator - A linear actuator implements two contact switches for travel-limit control of an output shaft of the linear actuator and implements a variable resistor that is connected with a reduction gear of a motor of the linear actuator for providing a position feedback function. | 07-29-2010 |
20100206101 | Linear actuator - A linear actuator has a modulized structure that allows at least a transmission unit, an actuation unit, and a power device of the linear actuator to be combined integrally. The actuator is advantaged by its reduced manufacturing and fabricating costs, simplified and compact structure, as well as expanded application scope. | 08-19-2010 |
20100236343 | Linear actuator having quick-release mechanism - A linear actuator with a quick-release mechanism allows the unpowered, loaded linear actuator to immediately return to its initial position by operating a rotatable involute cam of the quick-release mechanism. The quick-release mechanism is connected with a remote monitoring system so the current position of the linear actuator can be detected from a distant place. | 09-23-2010 |
20110061480 | QUICK-RELEASE MECHANISM OF AN ACTUATOR - A quick-release mechanism of an actuator, including: a worm wheel having a circular body section, a shaft hole extending through the body section along a curvature center line thereof; a rod-like push body coaxially fitted through the shaft hole; and a clutch unit having a first clutch section and a second clutch section. The first clutch section is integrally formed on an end face of the body section. The second clutch section is slidably and relatively unrotatably fitted on the push body. The second clutch section is movable along an axis of the push body between a disengaging position and an engaging position. When positioned in the engaging position, the first and second clutch sections are engaged to drivingly couple the push body with the worm wheel. When positioned in the disengaging position, the first and second clutch sections are disengaged to uncouple the push body from the worm wheel. | 03-17-2011 |
20110132139 | ASSEMBLING MECHANISM OF A SELF-LOCKING LINEAR ACTUATOR - An assembling mechanism of a self-locking linear actuator includes a gearbox, a one-piece rear retainer seat and a casing. The gearbox is composed of two half pieces, which are mated with each other for accommodating and locating a transmission mechanism of the actuator. The rear retainer seat is fixedly held in the gearbox for supporting a bearing of a threaded rod of the transmission mechanism and bearing the stress from the threaded rod. The contact faces of the rear retainer seat and the gearbox are regular polygonal to facilitate adjustment of fixing angle of the rear retainer seat. The casing is composed of two half casings, which are mated with each other to accommodate the transmission mechanism, the gearbox and the rear retainer seat. The mating faces of the half casings are parallel to the axis of the output shaft of a motor to facilitate connection operation of the casing. | 06-09-2011 |
20120032541 | BRUSH DC MOTOR WITH REDUCTION MECHANISM - A brush DC motor with reduction mechanism includes: a brush DC motor including a motor case, a stator section and a rotor section having a substantially cylindrical core, the stator section and the rotor section being received in the motor case; and a first reducing section drivable by the motor. The first reducing section includes a first sun gear, an external ring gear positioned around the sun gear and several planetary gears held between the external ring gear and the sun gear and engaged with the sun gear and the external ring gear. The first reducing section further includes a planetary carrier for locating the planetary gears in their true positions. Multiple parallel linear splines are formed on a circumference of the core at intervals. One end of the core with the splines formed on the circumference of the end serves as the sun gear of the first reducing section. | 02-09-2012 |
20120193184 | CLUTCH MECHANISM WITH OVERLOAD PROTECTION - A clutch mechanism with overload protection provided between a power input shaft and a power output shaft of an actuator includes a magnet set including at least a first magnet and a second magnet that are arranged as magnetically attractive to each other and are attached to the power input shaft and the power output shaft, respectively; and a friction assembly including a first friction member and a second friction member arranged adjacent to each other and between the first magnet and the second magnet, so as to provide a constant friction between the magnets. The magnet set and the friction assembly jointly set a limit of a torque between the power input shaft and the power output shaft. When the torque exceeds the limit, the power input shaft and the power output shaft are disconnected, so as to achieve overload protection. | 08-02-2012 |
Patent application number | Description | Published |
20080196521 | Linear Feedback Device for an Actuator - A linear feedback device for an actuator comprises: a coiling belt, a return gear wheel, a driven member, and a sensing feedback device. The sensing linear feedback device serves to feedback the displacement data of the driven member that is moveable along a predetermined rail after engaging with the return gear wheel. The return gear wheel is coaxial with the coiling belt, and the coiling belt unwinds or retracts along with the actuator and drives the return gear wheel to rotate. The gear ratio between the return gear wheel and the driven teeth is used to adjust the back and forth moving distance of the probe. The linear feedback device can be installed in a small external hanging type body and offer an absolute position sensing function while preventing the error accumulation. | 08-21-2008 |
20090033270 | Position Feedback Device for a Motor - A position feedback device for a motor comprises a driven member and a sensing device. The driven member is indirectly connected to the motor and driven by it. The sensing device detects the travel length of the motor by sensing the driven member. With the method of indirectly sensing the motor, the measurement error, production cost can be reduced, and the assembling position is flexible. | 02-05-2009 |
20090249904 | Linear Actuator - A linear actuator comprises an outer tube, an intermediate tube and an inner tube which are polygonal in cross section. The outer tube is provided for the insertion of the intermediate tube and the inner tube, and the respective tubes are restricted with respect to one other. The outer tube is disposed with a push device having a screw and a nut that are screwed with each other and at least one tension adjusting device. At a top of a push pole is disposed a pulley pushing and supporting a pulling member whose two ends are respectively fixed between the inner tube and the outer tube, and another pulling member winding around a pulley is disposed between the intermediate tube and the inner tube. Thus, each pulling member can be pulled to change the tension so as to keep the stability. | 10-08-2009 |
20090249905 | Linear Actuator - A linear actuator comprises an outer tube, an intermediate tube and an inner tube, and the tubes are all polygonal in cross section and are mounted orderly. The outer tube is disposed at the bottom thereof with a push device having a screw and a nut that are screwed with each other. The nut is engaged in the intermediate tube and is linked to move axially by the screw. The intermediate tube can be movably equipped with a pulling member, and the pulling member can link the inner tube to synchronously move in the axial direction. By such arrangements, the linear actuator allows the respective tubes to extend and retract axially relative to one another while preventing them from moving relative to one another in radial direction, thus achieving the stable and smooth axial movement. | 10-08-2009 |
20090249906 | Linear Actuator - A linear actuator comprises an outer pipe, a middle pipe and an inner pipe, and the pipes are hollow polygonal pipes and are mounted orderly. A bottom of the outer pipe is disposed with a pushing device and a rolling device. The pushing device having a screw and a nut that are screwed with each other. A pulling member is driven to move the inner pipe and is fixed between the inner pipe and the outer pipe by cooperating with a pulley disposed on the middle pipe and a steel wire, such that the pipes can be synchronously moved in an axial direction. The steel wire winds around a rolling shaft of the rolling device, such that the steel wire can be loosened or tightened along with the pipes, enabling the pipes to extend or retract more stably. | 10-08-2009 |
20100033034 | High-Power and High-Torque Step Motor - A high-power and high-torque step motor comprising a stator which is provided with a first stator pole, a second stator pole, a third stator pole, a fourth stator pole, a fifth stator pole, a sixth stator pole, a seventh stator pole and a eighth stator pole. An A-phase winding orderly winds around the first, third, fifth and seventh stator poles, and a B-phase winding orderly winds around the second, fourth, sixth and eighth stator poles. The first, second, fifth and sixth stator poles are wound in the same direction, and the winding direction of the third, fourth, seventh and eighth stator poles is opposite to that of the first, second, fifth and sixth stator poles. By such arrangements, the high-power and high-torque step motor is formed. | 02-11-2010 |