31results about How to "Reduced output torque requirements" patented technology

The invention discloses an overturning hopper. The overturning hopper comprises a hopper body, a hopper revolving support and an overturning mechanism, wherein the overturning mechanism comprises a link and a crank, one end of the link is hinged onto the hopper body, the other end of the link is hinged with the crank, and the other end of the crank is hinged onto a crank revolving support through a crank rotary shaft; and the receiving point and the unloading point of the hopper are both arranged at or close to the dead point of the overturning mechanism through optimizing the starting point and the ending point of the crank, so that the impacted force working condition of speed reducer equipment is optimized during the loading and the unloading of the overturning hopper. According to the mechanism, the centre-of-gravity position of the hopper body and the centre-of-gravity position of the hopper after the loading are further optimized, so that the centre of gravity of the hopper body is located between the revolving hinge point of the hopper and the supporting hinge point of the link and close to the revolving hinge point of the hopper; and requirements on the output torque of a speed reducer are greatly lowered by virtue of the force amplification effect of the link, so that the weight of the speed reducer equipment and the power of a tilting motor are greatly reduced, and the motor power and the energy consumption of the system are saved.

A high frequency large flow 2D digital servo valve comprises a valve body, a mulitpolar AC servo motor, a moment amplifying mechanism, a valve plug and a valve sleeve, the output shaft of the mulitpolar AC servo motor is connected with the input end of the moment amplifying mechanism, the output end of the moment amplifying mechanism is fixedly connected with the front end of the valve plug, the valve sleeve is sealed in the valve body, the valve plug is rotationally installed in the valve sleeve, the left end of the valve plug, the valve sleeve and a back cover plate construct a sensitivity chamber, the surface of ledges of the valve plug in the sensitivity chamber is respectively provided with a high pressure hole and a low pressure hole which are arranged in axial symmetry, both the high pressure hole and the low pressure hole are of bow shape, the bowstring of the high pressure hole and that of the low pressure hole are parallel, the inner surface of the valve sleeve outside the sensitivity chamber is provided with a pair of spiral grooves in axial symmetry, one end of the pair of spiral grooves is communicated with the sensitivity chamber, and the other end thereof covers thearea between adjacent high pressure hole bowstring and low pressure hole bowstring. The invention has excellent dynamic response property, is suitable to work under state of large flow, and has simple structure, high precision and strong anti-pollution capacity.

The invention discloses a link-type multi-leg robot which, based on bionic features of quadruped mammals, comprises four sets of foot modules and three-segment frame modules distributed symmetrically on two sides of a frame. The link-type multi-leg robot is characterized in that each foot unit employs a multi-link mechanism having a prismatic pair, and a hip joint, a thigh joint and a knee joint in each foot unit are driven in a transmission manner where an alternating-current permanent magnet synchronous motor and a harmonic reducer are connected; the modular foot design concept may allow foots and the frame to be quickly detached and attached to arrive at different configurations, and accordingly one robot may come with multiple models. The multi-link scaling foot structure used herein allows ratios of force and movement of thigh joints and shank joints to be amplified, and the requirement on motor output torque is lowered. The leg link structure has both high rigidity and bearing capacity. The legs can tolerate driving errors, the rigidity and stability of the whole structure are improved, and the robot is imparted better ability to adapt to complex terrains.

The invention provides a one-way spiral half soil compaction drill bit which comprises a hollow connecting rod. One end of the connecting rod is provided with a flange plate and a drill tip is arranged close to the other end of the connecting rod. The hollow connecting rod is sequentially and coaxially sleeved with a lower spiral compaction expanding body, a non-closed compaction expanding body and an upper soil conveying auger stem from the end close to the drill tip to the end provided with the flange plate. The drill tip is connected to the end of the lower spiral compaction expanding body, spiral compaction expanding blades are arranged on the outer wall of the lower spiral compaction expanding body, upper spiral soil conveying blades with the spiral direction identical to that of the spiral compaction expanding blades are arranged on the outer wall of the upper soil conveying auger stem, the outer diameter of each compaction expanding blade is identical to that of each upper spiral soil conveying blade and is D1, the maximum outer diameter of the non-closed compaction expanding body is D2, the maximum outer diameter of the lower spiral compaction expanding body is D3, and an inequation D3<D2<D1 is satisfied. According to a one-way spiral half soil compaction pile construction technology and the one-way spiral half soil compaction drill bit applied to the technology, foundation piles which are high in bearing capacity, low in cost, green and environmentally friendly can be constructed, the drill bit and the technology are suitable for various complex stratums including a hard rock stratum, and the phenomena of the compaction negative effect, pile body lateral displacement and the like are effectively reduced.

In the invention, the power system consists of an engine, an integrated starting generator, a starter and a controller. The controller is made up of a main control module and power control modules of the integrated starting generator and the starter, a temperature probe and a pair of the voltage sensors connected with the main control module separately. The control method comprises the following steps of sending self-checking command via the controller; detecting whether the power control module of the integrated starting generator is normal or not to determine the running mode of the integral car via the controller; detecting the ambient temperature via the controller; detecting the voltage and the quantity of electricity output by the power battery to determine the starting engine mode via the controller; waiting for starting order via the controller and running of the integral car after starting the engine.

The invention discloses a full-hydraulic down-hole rotating impact combined drill bit for pilling a rock and soil layer. The full-hydraulic down-hole rotating impact combined drill bit comprises a rotary power unit and a combined hydraulic impact hammer unit, wherein working torque of the rotary power unit in the full-hydraulic down-hole rotating impact combined drill bit is output by a hydraulic motor or a hydraulic speed reducer through a gear group, meanwhile, the hydraulic motor or the hydraulic speed reducer drives a hollow shaft, a hydraulic oil rotary joint and the combined hydraulic impact hammer unit to rotate, and thus rotary grinding is realized; meanwhile, impact power of the combined hydraulic impact hammer unit in the full-hydraulic down-hole rotating impact combined drill bit is output by a hydraulic hammer and is transmitted to an alloy-embedded hammer plate on an impact hammer fixing main body, the impact power of the alloy-embedded hammer plate directly acts on a rock layer, and thus impact crushing is realized; through the simultaneous action of the rotary grinding and the impact crushing, quick excavation construction is realized.

The invention discloses an intelligent man-machine interaction type vehicle accelerator pedal device. The device comprises a pedal rotary shaft system, a control shaft system, a sliding polished shaft system and a clutch shaft system. The pedal rotary shaft system, the control shaft system, the sliding polished shaft system and the clutch shaft system are arranged on a pedal support. The pedal rotary shaft system is used for achieving work states of a common accelerator pedal, the control shaft system transmits power to the clutch shaft system through the sliding polished shaft system, a cylindrical cam, idler wheels and a transmission rod in the clutch shaft system drive a pressing plate to move axially so that the plate-type cam of the control shaft system can achieve feedback control of pedal force after the pressing plate and a friction plate are combined and locked, and an adjusting mechanism in the sliding polished shaft system can adjust the axial position of a sliding gear so that the common accelerator pedal can work when a control motor fails. Besides, control of rotation speed and power of an engine and running speed can be achieved through the common accelerator pedal, running states and road condition information can be fed back to drivers through an accelerator pedal in a tactile feedback mode, man-machine interaction is achieved, and the drivers are assisted in improving driving behaviors.

The invention discloses a stretching component of an elevator device, which comprises a plurality of carrying bodies of bearing core threads provided with coating layers, and an enclosing body for enclosing the carrying bodies; wherein, the outer appearance of the enclosing body adopts a flat strap-shaped structure, and the width size of the inclosing body is at least larger than the thickness size thereof; the coating layers and the enclosing body of the carrying bodies are made of non-metal material, the carrying bodies are adjacently arranged along the horizontal direction, the relative motion can be performed between adjacent carrying bodies, as well as between the carrying bodies and the enclosing body. The invention also discloses the elevator device adopting the stretching component. The stretching component can eliminate the deformation of the enclosing body, and the service life of the stretching component is enhanced; the stretching component has the advantages that the structure is simple, the service life is long, and the friction characteristics are good, and meanwhile the arrangement of an elevator system is more flexible.

The invention relates to a driving motor front-engine rear-drive automatic mechanical gearbox gear shifting system, in particular to a synchronizer-free gear shifting automatic mechanical gearbox on the basis of few-gear middle shaft active speed regulation, and belongs to the technical field of automobile control. The system comprises an input shaft, an output shaft, driving and driven gears for each gear, a spline hub, an engagement sleeve, a sensor, a speed regulating motor, a speed regulating motor transmission mechanism, a clutch operation mechanism, a gear shifting executing mechanism and a controller. The system realizes the synchronism of the engagement sleeve and a target-gear gear during the gear shifting through the regulation on the input shaft rotating speed under the condition of the motive power interruption of the speed regulating motor, a synchronizer with high requirements on materials is omitted, the cost is favorably reduced, and meanwhile, the problem that the starting and acceleration performance and the relative high-speed running of a small-size pure electric automobile cannot be simultaneously considered can be favorably solved.

The invention provides a base hinge point position self-adjusting six-degree-of-freedom neck part flexible exoskeleton system which has a power-assistance function, replaces a wearer to bear the weight and inertia, relieves a heaviness sense, a restriction sense and a foreign body sensation brought to the wearer by a load, improves the flexibility of connection between the wearer and the base hinge point position self-adjusting six-degree-of-freedom neck part flexible exoskeleton system, and has a head position and pose detection function. The base hinge point position self-adjusting six-degree-of-freedom neck part flexible exoskeleton system comprises a base bottom plate; unit brackets are arranged on the base bottom plate through base hinge point position adjusting mechanisms; servo motors and steel rope windings are arranged on the unit brackets; universal pulleys are rotationally arranged on the unit brackets; three compound spherical hinges are uniformly distributed on a load mounting platform in the circumferential direction; each of an inner ear and an outer ear of each compound spherical hinge is connected with one steel rope winding through a steel rope correspondingly; joint space force detection units are connected with the steel ropes in series; rotating speed and corner sensors are arranged on the servo motors; outputs of the joint space force detection units and the rotating speed and corner sensors are connected with a control unit; and an output of the control unit is connected with the servo motors.

The invention provides an electric adjustable jack which comprises a jack head assembly, a lifting assembly, a power transmission assembly and a base assembly. An automatic locking assembly is located in the lifting assembly. Compared with a straight rod shaped lifting assembly of a traditional scissor jack, when the lifting assembly with the bent state lifts an identical object to the same height, torque needing to be output by a motor is smaller, the lifting assembly can be adjusted to the ideal state according to the requirement of the application environment, the requirement of a jack for the torque output by the motor is lowered, and the lifting capacity of the jack can be improved temporarily, so that the jack adapts to the more narrow working environment, and meanwhile the jacking range of the jack is greatly enlarged.