90results about "Mechanical energy handling" patented technology

A suspended-load backpack designed to permit the load to move relative to the backpack frame during walking and running so that the large movements between the load and the frame of the backpack reduce the fluctuations of absolute vertical motion of the load. Because the hip (and thus the pack frame) go up a down a good deal during walking, a large relative movement between the frame and the load reduces the absolute excursion of the load. This movement may be, in turn, transferred to a motor through, for example, a rack and pinion gear, to convert the mechanical movement to electrical energy. The movement may also be converted to electrical energy by using an electroactive polymer (EAP) to connect the suspended load to the frame. Such designs allow the load to move in a controlled fashion to prevent the patient from losing his or her balance as the load moves up and down along the backpack frame. Such movement of the suspended-load relative to the frame also reduces the forces on the wearer's shoulders while walking or running, thus reducing the likelihood of orthopedic injury.

A non-rotary case to which the motor stator of an inwheel motor is fixed is connected to a knuckle which is a part around the wheel of a vehicle by a first elastic member, a rotary case to which the rotor of the motor is fixed and rotatably connected to the non-rotary case through a bearing is connected to the wheel by a second elastic member so as to float-mount the inwheel motor to parts around the wheel.

A motor. The motor includes a stator, a rotor, a top magnetic structure, and a bottom magnetic structure. The stator is disposed in a frame. The rotor is also disposed in the frame, corresponding to the stator. The rotor comprises a shaft, extended axially from the rotor. The shaft does not contact the stator or the frame. The bottom magnetic structure is at the bottom of the frame. The top magnetic structure is on the top of the frame. The top and bottom magnetic structures are opposite to each other in an axial direction. Magnetic attraction generated between the first magnetic structure and the second magnetic structure attracts and positions the shaft therebetween such that the first magnetic structure, the second magnetic structure, and the shaft are coaxially aligned.

A brushless motor includes an external stator where a magnetic circuit is electrically formed by winding electric wires around an iron core; a bus bar bundling the electric wires and forming an external input terminal; and an internal rotor formed by integrating a permanent magnet and rotatably supported through a bearing with respect to the external stator, wherein an insulation plate is held on one end of the external stator and attached thereto a magnetic pole sensor detecting a magnetic pole of the permanent magnet.

A motor includes a base, a stator, a bearing, a positioning member and a rotor. The base includes a shaft tube. The stator is mounted around the shaft tube. The bearing is received in the shaft tube. The positioning member is fixed to an end of the shaft tube and has a pressing portion to prevent movement of the bearing in the shaft tube. A plurality of retaining plates is formed on the positioning member. Each retaining plate has a retaining end. The rotor includes a shaft having an annular groove formed in an outer periphery thereof. The retaining ends of the retaining plates are in the annular groove to avoid departure of the rotor from the base. Consequently, by a single-component design of the positioning member, departures of the rotor and the bearing are both avoided.

A powered dental tool generally includes a tool tip at its distal end, a body at its proximal end and a motion generating mechanism. In one aspect, the dental tool includes a tool tip having a proximal end and a distal end along a generally longitudinal axis and a reciprocating motion generating mechanism. The reciprocating motion generating mechanism may repeatedly move the tool tip generally back and forth by a given displacement generally along the tool tip's longitudinal axis. This displacement generally resembles the action of a hand scaler, i.e., a reciprocating motion along the longitudinal axis of the scaler, which is unlike the vibration of most powered scalers. Such action may be advantageous as it may be more intuitive for the dental professional or hygienist and may provide more effective scaling action. It may further be advantageous for a powered scaler to more closely resemble a hand scaler in form, which is small, portable and untethered. In one embodiment, the motion generating mechanism may include a rotational source and set of opposing magnetic transfer elements.

A wind jet turbine with a housing that creates an air density deferential between the air within the housing and the wind passing outside the housing in order to generate the same or more electrical power in less space than traditional wind turbines.

An inner rotor type motor has a plurality of stator magnetic poles projecting inwardly from a stator yoke surrounding the outer periphery of a shaft, of which a plurality of stator magnetic poles, some, at least the same number as the number of the phases of the driving voltage, are each provided with a driving coil and a decelerating coil wound around the same and form long stator magnetic poles (26), while the remaining stator magnetic poles are each made shorter than the long stator magnetic poles, not provided with a winding, and form short stator magnetic poles. Further, the motor has a rotor rotating centering around the shaft and having rotor magnets made up of permanent magnets disposed in a confronting relationship with salient poles of the stator magnetic poles.

Disclosed is a brushless motor which allows easy positioning of an air core coil and facilitates quick assembling of the coil because the air core coil is positioned by fitting an air core portion of the air core coil to bosses formed in a coil plate. Moreover, since no jig is required for the positioning of the coil, the positional precision of the coil can be stably attained, thereby enhancing the positional precision of the coil. Furthermore, although the positioning of the coil becomes difficult as the coil is reduced in size, the present invention is capable of easily coping with the thinning and miniaturization of the coils, i.e., thinning and miniaturization of the motor. In addition, the thinning and miniaturization of the motor can also be attained by arranging a circuit board and a coil plate in parallel to each other.

The invention relates to a direct-drive composite permanent magnet motor with a magnetic transmission and dual-stator structure. According to the direct-drive composite permanent magnet motor with the magnetic transmission and dual-stator structure, a novel permanent magnet motor with a dual-stator hollow-rotor structure and a magnetic gear transmission technology are integrated so as to directly realize the mutual conversion of electric energy and low-revolving-speed large-torque mechanical energy, and the novel direct-drive composite permanent magnet motor can be widely applied to the wind power generation, hydraulic power generation, electric automobiles, ship drive and the field of transmission of other industries needing direct drive. The direct-drive composite permanent magnet motor is characterized in that an integrated structure is formed in a manner that a disk-shaped magnetic transmission gear pair I and a dual-stator-structure permanent magnet motor II are combined, the variable-speed transmission of high-speed and low-speed mechanical kinetic energies is realized by using the magnetic transmission gear pair I with transverse magnetic fields, the electromechanical energy conversion is realized by using the dual-stator-structure permanent magnet motor II with radial magnetic fields, a magnetic circuit structure is of a closed magnetic circuit which is formed in a manner that an inner stator and an outer stator are directly connected between two hetero-polarity permanent-magnet poles of a hollow rotor in series, the inner stator, the outer stator and the rotor are of a radial concentric structure, and two air gaps exist.

An oilless bearing and a vibration motor having the oilless bearing are disclosed. The vibration motor that includes a housing having an internal space, an oilless bearing which is inserted and secured in the housing, and a shaft of which one end is at least partially inserted into the oilless bearing, where the oilless bearing has a contact part which is in contact with the perimeter of the shaft and a non-contact part which is formed adjoining the contact part and which has a diameter greater than the diameter of the shaft, and where the non-contact part is positioned further outward compared to the contact part, can improve the properties of the vibration motor and reduce mechanical noise, while increasing durability.

A rotor mounting device for inserting the rotor of a motor into a rotor housing which is mounted to an engine and coaxially mounting the rotor to a crankshaft. The rotor mounting device is provided with a rotor supporting member, a rotor positioning member engaging with some of the bolt insertion holes formed in the rotor to position the rotor, a temporarily fixing bolt for temporarily fixing therotor to the rotor supporting member, a driving shaft having a front end engaged with an end of the crankshaft and axially movably supporting the rotor supporting member through a screw mechanism, a base member for rotatably supporting the base end side of the driving shaft and allowing the rotor supporting member to approach and separate from the base member, a base positioning member engaging with the rotor housing, and a fastening mechanism engaging with the head of a connecting bolt inserted through at least one of the bolt insertion holes and supported by the rotor supporting member so asto urge the connecting bolt to the rotor side.

The invention discloses a switchgear with adjustable internal space. The switchgear comprises a bottom plate. The top of the bottom plate is fixedly connected with a box body. A fixed plate is fixedlyconnected between two sides of the inner wall of the box body. A movable plate is slidably connected with the top of the fixed plate between two sides of the inner wall of the box body. Threaded blocks are fixedly connected with two sides of the movable plate. Each inside threaded block is in threaded connection with a threaded rod. The top end of each threaded rod passes through the box body andextends to the top of the box body. The outer surface of one end, which extends to the top of the box body, of each threaded rod is sleeved by a first bevel gear. The invention relates to the technical field of switchgears with adjustable internal space. According to the switchgear with adjustable internal space, the threaded blocks drive the movable plate to move through the rotation of the threaded rods; the switchgear has a good adjustment function, and can store electrical components of different sizes; the practicality of the switchgear is greatly improved; and the switchgear can meet the needs of different people.

The invention aims at providing a secondary oscillating joint structure of an underwater electric manipulator. The secondary oscillating joint structure comprises box bodies, worm wheels, worms, worm wheel output shafts, motors, a joint fixing flange and end covers, wherein the joint fixing flange is connected with the box bodies; the motors are mounted inside the joint fixing flange; the worm wheels and the worms are mounted inside the box bodies; the worm wheels are connected with the motors through the worms; the number of the end covers is four, and the four end covers are respectively fixed at the front sides and the rear sides of the box bodies; and the worm wheel output shafts are connected with the worm wheels and penetrate through the end covers at the front side and the rear side. The secondary oscillating joint structure of the underwater electric manipulator has a compact structure, various forms and low cost, is easy to mount, and can realize mechanical self-locking.

The invention discloses a motor device which comprises a plurality of motors, wherein output shafts of two adjacent motors are connected together. The invention also discloses a motor device which comprises a motor, wherein the motor comprises a plurality of stators and a plurality of rotors which is in one-to-one correspondence to the plurality of stators. The invention realizes the motor device which has the advantages of more effective energy saving, more safety and reliability and lower manufacture cost.

The invention relates to the field of mechanical control, in particular to a supporting leg control device. The device judges the supporting leg state through two variables including the torque and the stroke, the torque serves as the main judgment basis, and it is ensured that the leg withdrawing zero return position is within the reasonable range. The sliding column zero return position each time is determined at random, the torque change in the reasonable range can be well recognized in the zero return process, long-term stable running of the control device is ensured, the supporting leg fault period is reduced, and reliability of the control device is improved.

The invention relates to a bearing preload adjusting and locking structure for a small and special electrical machine and an implementation method. The bearing preload adjusting and locking structureincludes a rotor, a stator, a first bearing, a second bearing, a lock nut, a bearing washer, a bearing outer ring gasket and a bearing inner ring gasket, wherein the outer ring cylindrical surfaces ofthe two bearings are in contact with the cylindrical surface of a rotor shaft sleeve inner cavity; the outer ring inner end surfaces of the two bearings are in contact with the two end surfaces of arotor shaft sleeve stop; the bearing washer is assembled between the inner rings of the two bearings; the bearing outer ring gasket is installed between the first bearing and the rotor shaft sleeve stop; the bearing inner ring gasket is installed between the first bearing and the bearing washer; the lock nut is disposed on the outside of the first bearing and is in threaded connection with a stator output shaft; the threaded joint is coated with anti-loose paint; the boss at the inner end of the lock nut is in close contact with the inner ring of the first bearing; and four blind holes are machined at the outer end of the lock nut. The bearing preload adjusting and locking structure solves the problems that the locking torque of the electrical machine is uneasy to control and poor in stability, and the preload changes greatly after a strong impact.

The invention relates to an oil pollution prevention motor, and particularly belongs to the technical field of robot manufacture. The motor comprises a harmonic reducer, a motor body and a shell. Themotor is characterized in that the motor body is mounted on an output shaft arranged on the harmonic reducer, the motor body is provided with a stator core mounted on the output shaft and a rotor coremounted on the shell, the rotor core is provided with a coil sheath, and the coil sheath is higher than a coil and filled with cure adhesive. The oil pollution prevention motor has the advantages that a coil sheath is arranged on the stator core, so that the problem of oil pollution caused by lubricating oil leakage brought by the harmonic reducer can be effectively overcome, so that disruption of oil pollution to the coil is effectively removed, the service life of the motor is prolonged, and the quality stability of a mechanical arm is improved.

The invention relates to a linear vibration actuator. The linear vibration actuato comprises a bracket, a yoke shaft, a coil, a ring yoke, a bottom spring, a weight part, a top spring, and a top cover. The bottom spring is configured so that a bottom outer spring member having a ring shape and a bottom inner spring member having a coil through-hole formed in the center thereof protrude from bottom to top by a bottom bridging member having a spiral shape arranged in the counter-clockwise direction to form a whole; the outer peripheral edge part is provided with a fan-shaped position determining projection part which is combined with a fan-shaped position determining groove part that is correspondingly formed at the lower part of the housing part. The present invention relates to a vibration device capable of preventing the generation of partial vibration in the middle, reducing driving noise, and realizing long-term vibration by contactless vibration of a vibrating body.