2065results about How to "Reduce axial size" patented technology

A continuously variable transmission apparatus, has: an input shaft; a toroidal-type continuously variable transmission; a first rotation transmission shaft; a first planetary-gear-type transmission; a second planetary-gear-type transmission; a second rotation transmission shaft; an output shaft; a first power transmission mechanism; a second power transmission mechanism; and a switching mechanism, wherein, in a state where the power transmission through the first power transmission mechanism is allowed and the power transmission through the second power transmission mechanism is cut off, in accordance with the control of the transmission ratio of the toroidal-type continuously variable transmission, the output shaft be stopped while leaving the input shaft rotating.

A valve connector for medical infusion lines including an external tubular body with an inlet end and an outlet end, an internal hollow spike and an intermediate sealing member including a head with pre-slit and an elastic hollow element formed with fluid-tight members in contact with the hollow spike and with an elastic thrust means, which tends to maintain the elastic head in a closed condition. The elastic thrust means comprises a base part joined to the elastic hollow element of the sealing member through a generally transverse annular wall, which, during axial displacement of the elastic head from the closed condition to the open condition, bends within an annular chamber defined between the base part and a portion with conical surface of the hollow spike.

The invention discloses an integrated driving device for a new energy vehicle. Through integrated design, a driving motor, a speed reducer and a differential mechanism are integrated, a shell is shared by the driving motor, the speed reducer and the differential mechanism, a motor shaft serves as not only an output shaft of the driving motor but also an input shaft of the speed reducer, the speed reducer comprises a first-level speed reduction gear set and a second-level speed reduction gear set, a differential mechanism shell is connected with a second-level speed reduction gear, a half axle gear in the differential mechanism is coupled with a vehicle half axle spline, and therefore power generated by the integrated driving device is transmitted to wheel hubs, and the vehicle is driven to run. The integrated driving device for the new energy vehicle is compact in structure and high in integration level, the number of parts is reduced effectively, axial dimensions are shortened, the weight of an assembly is reduced, and the layout flexibility of a power system of the whole vehicle is greatly improved.

A spatial focal field type glasses display product can present virtual images at different distances simultaneously. The product is a frame type glasses or corneal contact lens and comprises a projection component and a display control device. The projection component comprises a plurality of projection units, each projection unit projects a plurality of elementary beams. The elementary beams projected by the same projection unit diverge and do not intercept with each other. The elementary beams projected by different projection units intersect near the retina after passing through the crystalline lens. The intersection point is a cluster focus. All cluster focuses form a spatial focal field which envelop the retina. When the diopter of the crystalline lens changes, the spatial focal field displaces and deforms accordingly, so different cluster focuses fall on the retina to be seen clearly, while the other cluster focuses tend to disperse and cannot be seen clearly.

The invention relates to a device for testing a coaxial inversion rotor wing of a helicopter, wherein a motor is installed on a base and connected to an inner shaft transmission and an outer shaft transmission in series; the output end of the inner shaft transmission is connected with the inner shaft of the rotor wing; the output end of the outer shaft transmission is connected with the outer shaft of the rotor wing; the inner shaft and the outer shaft are installed on a bearing base of the inner shaft; both an inner shaft coupler and an outer shaft coupler are provided with a torque meter; and a torque scale is installed on the bearing base. According to the invention, the thinking mode that the transmissions for rotor wing test must be gearboxes integrated together is broken through; by means of two gearboxes which are associated in function and independent in structure, tests of performance and reliability of the coaxial inversion rotor wing are realized; and the device is capable of respectively measuring dynamic data of lift force, torque and bending moment of two sets of rotor wings at the same time.

The invention relates to a plug-in hybrid driving device based on a mechanical automatic transmission, which belongs to a power driving device of walking machinery. The device comprises an engine, two motors, a two-gear mechanical automatic transmission, a main speed reducer and a differential mechanism, wherein the two-gear mechanical automatic transmission is composed of a mesh gear pair formed by gears of A, B, C, D, H, I, E and F, synchronizers of T and Q and shafts of M, N and O. Model switch of fuel power source driving, electric power source driving or hybrid source driving can be achieved by controlling the synchronizers of T and Q. The plug-in hybrid driving device has the advantages of being capable of effectively using efficient maneuvering areas of the engine and the motors, various in running models, capable of achieving driving synchronous speed regulation and unpowered interrupt control during gear shift, simple and compact in structure, small in axial size and suitable for front-engine front-driving arrangement form.

The invention discloses a large-torque magnetic suspension flywheel, which can be used as an execution mechanism for attitude stabilization and attitude maneuver of spacecrafts such as a satellite, an earth observation platform and the like. The magnetic suspension flywheel mainly consists of a base, a sealing cover, a radial decoupling conical magnetic bearing assembly, a core shaft, a rotor assembly, a Lorentz force magnetic bearing assembly, a motor assembly, a sensor assembly and the like. The core shaft is positioned in the center of the wheel body, a stator assembly is positioned at theradial outer side of the core shaft, the rotor assembly is arranged at the radial outer side of the stator assembly, the rotor assembly consists of a wheel flange and a wheel hub, and the Lorentz force magnetic bearing assembly consists of a magnetic bearing stator part and a magnetic bearing rotor part; an adapter plate is connected with the core shaft, the stator assembly and a motor stator; and the sensor assembly consists of a sensor shell and a sensor. The components of the flywheel are arranged reasonably and compactly, the flywheel can be used for attitude stabilization of the spacecraft, and attitude maneuver of the spacecraft can be realized by using large control torque provided by gyroscopic effect of the magnetic suspension flywheel.

An electric thrusting unit for a disc brake with an electric parking mechanism includes a worm reduction gear and a thrust generation mechanism. The thrust generation mechanism converts rotational movement transmitted by way of the worm reduction gear into linear movement. A worm wheel of the worm reduction gear is supported on the thrust generation mechanism concentrically with a rotational member of the thrust generation mechanism. A drive side gearwheel and a driven side gearwheel are meshed with an output shaft of the electric motor directly or by way of an additional gearwheel so as to transmit a rotational force of the output shaft to the worm. The drive side gearwheel is provided concentrically with the output shaft and so as to rotate together therewith. The driven side gearwheel is provided on a part of the worm concentrically with the worm and so as to rotate together therewith.

A switchable cam follower (1) for a valve train of an internal combustion engine, which valve train can be actuated indirectly by tappet push rods, the cam follower comprises an outer and an inner section (4,5) end for switching-off the cam follower (1) from the cam lift, the inner section (5) is pivotable relative to the outer section (4) during a valve lift phase of the cam.

A control apparatus for a vehicular power transmitting system including an electrically controlled differential portion having an electric motor, and an automatic transmission portion, the control apparatus including shift control portion operable upon determination that a jump shift-down action of the automatic transmission portion directly to a target gear position while skipping at least one intermediate gear position should take place and upon inhibition of the jump shift-down action, to generate a shifting command to perform the jump shift-down action when total jump-shift-down-action time required for the jump shift-down action is shorter than total sequential-shift-down-operation time required for a sequential shift-down operation consisting of a shift-down action to each intermediate gear position and a shift-down action from the last intermediate gear position to the target gear position, and a shifting command to perform the sequential shift-down operation when the total jump-shift-down-action time is not shorter than the total sequential-shift-down-operation time.

The invention discloses a single-piston type hydraulic free piston engine; in the invention, a traditional reciprocating piston internal combustion engine and a plunger-typed hydraulic pump are integrated into a whole, a pump piston and two compression pistons are simultaneously and directly connected with a power piston in a rigid manner to form a piston component, therefore, a crank link mechanism which can transform the reciprocating movement of the pistons into rotary motion in the internal combustion engine, and a swash plate mechanism which can transform the rotary motion of the pistons into reciprocating movement in a plunger pump can be omitted, and the piston of the internal combustion engine is directly connected with the plunger of the hydraulic pump in a rigid manner. By adopting the technical proposal of the invention, a driving chain can be shortened, the repeated transformation between different movement forms can be omitted, the energy transfer form between an engine and a drive system can be optimized, and the soft readjustment of a power drive unit can be realized.

The present invention relates to a hybrid drive device including a first shaft coupled to an internal combustion engine, a rotary electric machine, a second shaft disposed coaxially with the first shaft and coupled to the rotary electric machine and a speed change mechanism, a clutch is provided to switch on and off transfer of a drive force between the first shaft and the second shaft, and a case houses the first shaft, the second shaft, the rotary electric machine, and the clutch. A rotor of the rotary electric machine is fixed to an outer peripheral portion of the clutch housing. A first seal mechanism is disposed in contact with an outer peripheral surface of the large diameter portion of the second axially projecting portion and the inner peripheral surface of the first axially projecting portion, and side by side with the first support mechanism in the axial direction.

A lock-up device includes a clutch part and a damper mechanism. The clutch part includes a clutch input member, a clutch output member, a drive plate, a driven plate, a second flange and a piston. The second flange is mounted between a front cover and an inner peripheral part of a turbine to be axially immovable with respect to the front cover, and forms a lock-up oil chamber. The piston is mounted between the front cover and the second flange, forms a lock-up oil chamber together with the second flange therebetween, and is configured to be moved toward the front cover by an operating oil to be supplied to the lock-up oil chamber.

The invention provides a cone plate type stepless speed changer. A driving cone plate and a driven cone plate respectively consist of a pair of movable cone plates and pressurizing cone plates, a pressurizing mechanism consists of an end surface cam pressurizing mechanism arranged at the back side of at least one pressurizing cone plate in a driving shaft pressurizing cone plate and a driven shaft pressurizing cone plate, a speed regulating mechanism consists of a speed reducing shaft, a hollow screw rod and a screw nut, the hollow screw rod and the screw nut are respectively arranged at the back side of a driving shaft movable cone plate and a driven shaft movable cone plate, the hollow screw rod and the screw nut are of ball screw structures or sliding spiral structures, through a speed regulating shaft and a constant ratio transmission mechanism, the conversion relationship of the rotation of the speed regulating shaft to the axial movement of the driving shaft movable cone plate and the driven shaft movable cone plate meets a formula that i1=i2, and the driving shaft movable cone plate and the driven shaft movable cone plate are enabled to do synchronous identical-speed and identical-direction movement. The end surface cam pressurizing mechanism and the speed regulating mechanism of the speed changer are separated in space, the axial dimension of the pressurizing mechanism can be reduced, the positive and reverse two-way pressurization can be realized through the end surface cam pressurizing mechanism, the pressurizing pressure can be regulated in real time along with the transmission torque, the transmission efficiency is high, the service life of a system is long, and the reliability is high.

The invention discloses a three-dimensional hollow light spot generating method and a three-dimensional hollow light spot generating device. The three-dimensional hollow light spot generating device comprises a laser, a single mode fiber, a collimating lens, a first polarizing beam splitter prism, a plurality of light turning assemblies, two phase modulators, a second polarizing beam splitter prism, a 1 / 4 wave plate, a microobjective, a sample surface and a medium film reflecting lens. The three-dimensional hollow light spot generating method comprises the following steps; performing different phase modulation on vertical polarized light and parallel polarized light; combining the two modulated light beams, and converting the combined light beam into two circuit polarized lights by the same 1 / 4 wave plate; projecting the two circuit polarized lights by the microobjective to penetrate through the sample surface, and reflecting the two circuit polarized lights by the medium film reflecting lens; interfering the reflected light irradiated to the sample surface with projecting light to form a transverse hollow light spot and an axial hollow light spot respectively; and superposing the light intensities of the two hollow light spots to form a three-dimensional hollow light spot, wherein the transverse size of the three-dimensional hollow light spot is 0.56 wavelengths and the axial size of the three-dimensional hollow light spot is 0.44 wavelengths. The three-dimensional hollow light spot generating method and the three-dimensional hollow light spot generating device can be applied to super-resolution microscopic equipment such as a stimulated emission depletion microscope and are used for realizing three-dimensional super-resolution microscopy.

The invention relates to a rotating and swinging joint module of a robot of single degree of freedom. The joint module is provided with a rotation degree of freedom, and the joint spindle thereof is vertical to the connection axis of the module to form swinging movement. The joint module is matched with a corresponding control system to realize movement or moment control, and joint parts and limiting position are detected by a Hall switch. The rotating and swinging joint module mainly comprises a servo motor and a photoelectric encoder assembly, a disk-type harmonic wave reducer assembly, a harmonic wave reducer output shaft, a motor base, a joint base, a bearing, a shaft cover, an end cover, a pair of bevel gears, a joint spindle and the like, wherein a motor shaft is connected with the wave generator of the harmonic wave reducer through the shaft sleeve, and the output rigid wheel of the harmonic wave reducer is fixedly connected with an output disk; a pair of bevel gears is arranged between the output disk and the joint spindle; the joint spindle is connected with a joint oscillating piece by a trapezoidal key to finally realize movement and power transmission. The module has compact structure and is convenient to connect with other modules or parts and can be combined and built into various robots or other electromechanical systems.

The invention discloses a cam mechanism and rotating ring forced resetting device for a fingerprint lock and relates to the field of anti-theft locks. According to the cam mechanism and rotating ring forced resetting device for the fingerprint lock, the main improvement is that the specific structure and the assembling mode of an overload protection device of the cam mechanism are changed; a collision bead sliding way, a collision bead spring and the like are radially assembled onto a cam shaft which is amplified locally; meanwhile, a collision bead large in diameter is adopted, on one hand, it is guaranteed that the idle function of the cam mechanism is stable and reliable, and on the other hand, space can be saved; the rotating ring forced resetting device which is simple and easy to implement can be arranged conveniently so that potential dangers can be eliminated; in addition, the resetting device is free of wear in routine operation and low in production cost; and meanwhile, axial dimensions and radial dimensions of main components of a double clutch can be increased so that reliability of the double clutch and safety of the lock can be improved.

The invention provides an electromagnetic and friction integrated brake system and a control method thereof. The electromagnetic and friction integrated brake system comprises a friction brake, an electromagnetic brake, a permanent magnet generator, a vehicle-mounted battery and an integrated controller. The inside friction disk and the outside friction disk of the disk-type friction brake are manufactured separately and connected by use of a bolt. The electromagnetic brake is of a rotary drum type and composed of an electromagnetic brake stator and a rotor for generating electrical vortex; the electromagnetic brake stator is located between the inside friction disk and the outside friction disk and fixedly connected with a steering joint support or suspension. The permanent magnet generator is located between the electromagnetic brake and the outside friction disk, and comprises a permanent magnet and a generator stator; the generator stator is connected with the electromagnetic brake stator by use of a bolt. The electromagnetic and friction integrated brake system has the advantages that the frequency of use of the friction brake is reduced, the heat of the brake system is scattered, the stability of the braking efficiency of the vehicle is improved, partial braking energy is recovered, and the braking noise is reduced and the consumption of energy of the whole vehicle during running is also reduced.

A decelerating device intended to intercept an end-of-stroke part of a closing path of a mobile member, such as a furniture drawer or door, including: a body fastenable in use to an abutting surface for the mobile member and internally defining a sealed chamber filled in use with a viscous fluid; a pushrod at least in part overhanging from the body and being adapted to cooperate in use with the mobile member, the pushrod being integral with a stem slidingly accommodated in the body against the bias of elastic means between an extracted position of the pushrod and a retracted position; and a piston accommodated in the sealed chamber so as to divide it into two portions hydraulically connected to each other and mechanically connected to the stem; wherein the stem presents a first end integrally connected to the pushrod and a second end opposite to the first, both slidingly accommodated in the body outside the sealed chamber and fluid-tightly towards the sealed chamber itself; the piston is provided with a mobile sealing member to choke the hydraulic communication between the two portions of the sealed chamber only during the stroke of the stem towards the retracted position.

The invention discloses an electro-hydraulic brake system driven by a motor for a vehicle. The electro-hydraulic brake system comprises a brake pedal, a pedal displacement sensor, a hydraulic sensor, a pedal simulator, a pedal push rod with two branches, an electric control unit, an electric control linear motion module, a brake main cylinder, a secondary main cylinder and an ABS (anti-lock braking system) / ESC (electronic stability control) module; one branch of the pedal push rod is abutted against the linear motion mechanism, and is positioned in the same axis as the piston of the brake main cylinder; the other branch of the pedal push rod is connected with the piston of the secondary main cylinder; the brake main cylinder sequentially comprises a front cavity, a first cavity and a second cavity for the brake main cylinder; the front cavity is connected with the secondary main cylinder and a liquid storage tank respectively through a decoupling valve and a liquid supply valve; the first cavity and the second cavity are connected with a vehicle wheel brake through the ABS / ESC module; the secondary main cylinder is connected with the liquid inlet of the pedal simulator. The electro-hydraulic brake system is used for recycling brake energy, improving system response time and accurately controlling hydraulic brake force, well feeds the braking force back to a driver, and realizes active control over hydraulic force and pedal force of the system.

A first cooling air passage is formed to let first cooling air generated by a cooling fan in from a radially outside of an inverter apparatus to cool a heat sink and out through exhaust holes provided on an outer peripheral side of a rear bracket by passing an inner periphery of the rear bracket. Also, a second cooling air passage is formed to let second cooling air generated by the cooling fan into a hollow portion of the inverter apparatus from an axially rear of a rotation shaft to cool a brush holder and a magnetic pole position detection sensor and out through the exhaust holes by passing the inner periphery of the rear bracket. Hence, cooling performance for the magnetic pole position detection sensor and the brush holder may be enhanced and an axial dimension may be reduced.

A multiple speed transaxle includes first and second input shafts, first and second output shafts, a layshaft, an idler shaft, a first set of selectable torque paths between the first input shaft and first output shaft, a second set of selectable torque paths between the second input shaft and the second output shaft, the second set including the layshaft and idler shaft, and a selectable torque path between the first input shaft and second output shaft including the layshaft and idler shaft.