80results about How to "Avoid mechanical interference" patented technology

A propulsive system for an aircraft including an auxiliary jet engine is integrated into a tail cone of a fuselage. A carrying structure of the jet engine is primarily formed with beams and frames or half-frames to which the auxiliary jet engine is fixed by lateral beams. The beams are interdependent of the frames and half-frames, and the beams are overhanging behind a frame behind which is fixed the engine. Each beam includes a lower half-beam and a higher half-beam, separated on at least a part of its length ahead from attachments of the jet engine to determine a space free of structure impediment for lateral air intakes.

An outboard motor control device is arranged to control a plurality of outboard motors. The outboard motor control device includes a malfunction determination unit arranged to determine whether any of the outboard motors is malfunctioning in turning angle control, a turning angle control stop unit arranged to stop turning angle control of an outboard motor determined as malfunctioning in turning angle control by the malfunction determination unit, a turning angle range limitation unit arranged to limit a turning angle range of other normally functioning outboard motor according to a turning angle of the outboard motor malfunctioning in turning angle control, and a turning angle control unit arranged to perform turning angle control of the normally functioning outboard motor in the turning angle range limited by the turning angle range limitation unit.

An adjustable size inlet duct system for a ducted fan propulsion system may change its inlet profile to enhance thrust levels in low-speed and hovering flight conditions and may change its inlet profile to reduce drag to permit faster flight speeds at higher operating speeds. The adjustable size inlet duct system may include duct petals and associated actuators. During slow speed flight, the petals may expand to generate a rounded large inlet area bellmouth profile. At higher flight speeds, the petals may contract to reduce the profile drag of the duct in forward flight. An optional exterior bypass duct may be included to provide additional thrust in excess of the thrust provided by the ducted fan. An optional annular electric motor housed in the exterior bypass duct may be included to generate still more excess thrust.

The invention relates to a key synchronizer driving eight-rod servo press coordinated with dual electric machinery. Two servomotors arranged symmetrically left and right are connected with a driving slide block by a key synchronizer driving mechanism coordinated with a set of dual electric machinery, and the driving sliding block is connected with a pressing slide block by two sets of eight-connecting bar pressing mechanism arranged symmetrically left and right. The key synchronizer driving mechanism coordinated with the dual electric machinery comprises a screw rod, a small connecting bar, a horizontal connecting bar and a sliding stand; each set of eight-connecting bar pressing mechanism comprises a short connecting bar, an upper elbow connecting bar, a lower elbow connecting bar and a punch connecting bar. The two servomotors can drive synchronously according to the set law of motion; the key synchronizer driving mechanism coordinated with the dual electric machinery can drive the driving slide block to move, and the driving slide block can push the pressing slide block to move by the two sets of eight-connecting bar pressing mechanism, therefore, the synthesis of the movement and the power of the two servomotors can be realized, and the large-tonnage ram pressure and movement are obtained, thus realizing the large-tonnage servo pressing with lower cost.

The invention provides a test bed for automobile doors. The test bed comprises a mechanical actuator mechanism, an electric control system and a sensing unit respectively coupled to the mechanical actuator and the electric control system. The mechanical actuator mechanism can be arranged inside an automobile and comprises an attachment mechanism, a transmission mechanism, a fixed bracket, a lifting platform and a servo motor adapted to drive the transmission mechanism. The attachment mechanism is attached to an automobile door. One end of the transmission mechanism is coupled to the attachment mechanism. The other end of the transmission mechanism is coupled to the servo motor. The sensing unit comprises an angle sensor, a force sensor and a speed detection unit fixed on the surface of the automobile door. According to the technical scheme of the invention, the test bed for automobile doors occupies a small space, and is easy in installation and strong in flexibility. During the test process, the loss of a to-be-tested automobile door and a testing mechanism is effectively reduced.

A propulsive system for an aircraft including an auxiliary jet engine is integrated into a tail cone of a fuselage. A carrying structure of the jet engine is primarily formed with beams and frames or half-frames to which the auxiliary jet engine is fixed by lateral beams. The beams are interdependent of the frames and half-frames, and the beams are overhanging behind a frame behind which is fixed the engine. Each beam includes a lower half-beam and a higher half-beam, separated on at least a part of its length ahead from attachments of the jet engine to determine a space free of structure impediment for lateral air intakes.

The invention relates to a novel hexapod bio-robot. The novel hexapod bio-robot comprises a body platform and six modular mechanical feet with the same structure, wherein the body platform is a rack for connecting the six mechanical feet. The novel hexapod bio-robot is characterized in that the body platform comprises an upper rack plate, a lower rack plate and connecting plates, wherein the upper rack plate and the lower rack plate are in the same shape and size and connected through the connecting plates, the six mechanical feet are symmetrically distributed between the upper rack plate and the lower rack plate and on two sides in the length direction of the upper rack plate through flanges, and adjacent mechanical feet have the equal distance; each mechanical foot comprises a coxa unit, a meropodium unit and a tibia unit, the coxa unit and the tibia unit are fixed at two ends of the meropodium unit respectively, and the upper part of the coxa unit is connected with the body platform. The robot is provided with a foot end sensing system and has multiple motion modes, thereby realizing omni-directional walking in the complex environment and dynamic sensing for the terrain environment.

A miter saw having a cutting portion movable toward and away from a base and laterally tiltable for bevel cutting. A gear case is provided at the cutting portion and is positioned at one lateral side of the cutting portion. A bearing holder is provided in the gear case for holding a bearing which rotatably supports a spindle for a circular saw blade. The bearing holder has a thickness smaller than an axial length of the bearing. A first bearing nip member in contact with one axial end of the bearing is fixed to one side of the bearing holder, and a second bearing nip member in contact with another axial end of the bearing is fixed to another side of the bearing holder. These nip members are made from a material having a mechanical strength higher than that of the bearing holder.

Cooling device with liquid for electronic cards, in particular for high-performance processing units, comprising at least a hydraulic circuit in which a heat-carrying fluid flows in order to extract the heat produced by electronic components and / or hot spots present on an associated electronic card. The device comprises a cooling plate mechanically coupled to the electronic card so as to be inserted in a containing rack of the processing unit. The plate has a heat extraction surface facing and partly in contact, or at least in close proximity, with the electronic components and / or the hot spots. The hydraulic circuit is made in the thickness of the plate and has a geometric grid development, along which a plurality of hydraulic sub-circuits are disposed and switching means to define desired paths. The plate has sliding guide means able to cooperate with corresponding alignment means of the containing rack.

An illumination optical apparatus includes a light source, which supplies illumination light including a wavelength of 5 nm to 50 nm, and an illumination optical system, which guides the illumination light to an illuminated surface. The illumination optical system includes an aperture angle restriction member and a condenser optical system, which is arranged in an optical path between the aperture restriction member and the illuminated surface to guide light beam from the aperture angle restriction member to the illuminated surface. A rotation axis of an arcuate-shape of an illumination region formed on the illuminated surface is located outside an opening of the aperture angle restriction member. The condenser optical system includes a plurality of reflection surfaces. Among the plurality of reflection surfaces, the reflection surface closest to the illuminated surface along the optical path includes a concave shape. When, for example, applied to an EUVL exposure apparatus, the illumination optical apparatus illuminates a reflective mask, serving as the illumination plane, without a plane mirror in the optical path between the illumination optical system and the mask.

The invention provides an indoor machine of a floor type air conditioner. The indoor machine comprises a housing and air guiding components, wherein at least one circular air outlet is formed in the front side of the housing; the air guiding components are arranged at the air outlets, and each of the air guiding components comprises an air outlet frame and a plurality of strip-shaped air guide plates; the circular air outlet frames are arranged on the inner sides of the peripheries of the air outlets in an embedding manner along the peripheries of the air outlets and configured to rotate in the planes of the air outlets; the strip-shaped air guide plates are distributed in the area scopes limited by the air outlet frames; the two ends of each of the air guide plates are connected with the inner periphery of the corresponding air outlet frame through a rotating shaft; each of the air guide plates rotates by taking any one of straight lines in the length direction of the air guide plate as the axis so as to open or close the air outlets. According to the indoor machine of the floor type air conditioner, when the air outlet frames rotate, the air guide plates are driven to rotate by multiple angles; the air guide plates are opened at different angles, so that air can flow out of the air outlets in multiple directions, the air supply diversity of the indoor machine of the floor type air conditioner is improved, straight blowing of cold air / hot air is avoided, and the user experience is improved.

The invention relates to a multifunctional farm machine. The multifunctional farm machine adopts a four-wheel drive structure and comprises a vehicle chassis, wherein a seat and a steering wheel device are arranged on the vehicle chassis; steering gears are symmetrically arranged on the front side and the rear side of the vehicle chassis and are in transmission connection with a center transmission shaft; the center transmission shaft penetrates through the vehicle chassis; two sides of each steering gear are connected with wheel devices through suspension assemblies; a steering wheel shaft of the steering wheel device is connected with the steering gears. With the adoption of the four-wheel drive structure, a requirement of larger drive force for field tillage is met, and a requirement of larger drive force for climbing and cross-country of a cross-country vehicle is also met; the multifunctional farm machine not only can be taken as the farm machine for field tillage, but also can realize the cross-country function, the whole vehicle chassis and the suspension assemblies all adopt a hollow structure, so that the weight of the whole farm machine is light, and the power demand is reduced.

The invention relates to the technical field of hot presses, in particular to a hot press and a product feeding and discharging method. The hot press comprises a feeding mechanism, a discharging mechanism, a plurality of hot pressing mechanisms arranged between the feeding mechanism and the discharging mechanism, a transfer platform, a transfer mechanism and a bearing device arranged on the hot pressing mechanisms, and the transfer mechanism is used for transferring batteries between the transfer platform and the multiple hot pressing mechanisms; hot-pressing processing is completed on the battery on multiple stations through the multiple hot-pressing mechanisms, the production efficiency is greatly improved through full-automatic production, the hot-pressing mechanisms are double-layer hot-pressing mechanisms, and the productivity is greatly improved. The bearing device used for supporting the product is arranged on the hot-pressing mechanisms, the product is lifted through the bearing device, the avoiding position allowing the transferring mechanism to stretch in to grab the battery is formed, the problem that feeding is difficult is solved, and mechanical interference between the transferring mechanism and the hot-pressing mechanism when the battery is put into or taken out of the hot-pressing mechanism is avoided; the accuracy and flatness of the battery placing position are guaranteed, and the battery processing quality is improved.

A semiconductor testing apparatus is provided wherein components that must be arranged most closely are arranged most closely to terminals of a test object. The present apparatus is semiconductor testing apparatus comprising a printed circuit board, and a test socket mounted on an upper surface of the printed circuit board and forming a signal connection path between a test object and the printing circuit board, wherein a chip shaped capacitor is mounted on the upper surface of the printed circuit board, an interference avoidance space avoiding contact with the capacitor is formed in the test socket, the interference avoidance space being formed at a location facing the location where the capacitor is mounted, and the capacitor and the test socket being non-contacted from each other by the interference avoidance space.

The invention discloses a method and a device for simultaneously detecting surface shapes and thickness distribution of inner and outer walls of a thin-wall rotating body. The spectrum confocal measuring head (10) is driven by the bottom rotary table (18), the main measuring head rotary table (11) and the linear motion shaft mover (16) to perform profiling scanning along the surface of the thin-wall shell type rotary body (5), so that the detection of the surface shapes and thickness distribution of the inner wall and the outer wall of the thin-wall shell type rotary body (5) can be realized at one time; mechanical interference caused by arranging a measuring head in the thin-wall shell type rotary body (5) can be avoided, and coordinate consistency of surface shape measurement data of the inner wall and the outer wall and thickness distribution data in a three-dimensional space can be guaranteed, so that the overall measurement precision is guaranteed; and meanwhile, the method can be suitable for detecting different types of thin-wall shell type revolved bodies (5) such as conformal fairings and hemispherical gyroscope harmonic oscillators, and a detection means with universality, high efficiency and high precision is provided for the manufacturing process of high-end devices of the type.

The invention relates to a machine tool, and the objective of the machine tool lies in that the mechanical interference is prevented from being generated because of the replacement of a tool when a holding part of a holding tool is forbidden to being located at a replacement position. The machine tool is provided with a warehouse and a control unit. A CPU of the control unit is used for control, thereby enabling a main shaft head to move between a position of a machining area where a workpiece can be machined and the position of an ATC original point where the warehouse can carry the holding part. An EEPROM is corresponding to the holding part, and stores the information whether one of a standard tool (t1) and a big-diameter tool (t2) is held or not. The CPU judges whether the holding part, storing the information of the big-diameter tool (t2), of the EEPROM is adjacent to a holding part located at a position of replacement. When the holding part is adjacent to a holding part located at a position of replacement, the CPU forbids that the main shaft head moves from the position of the ATC original point to the position in the machining zone, thereby preventing the replacement of the tool from generating the mechanical interference.

An automatic transmission consisting of a planetary gear unit comprising in combination an input shaft (1 ), an input gear (2), a key planet gear (3), an output gear (4), an output shaft (5), a bearing planet gear (6), a rotating frame (7), a rotor (8), wherein the planet shaft is the rotor (8) having a certain inertia moment, so its revolving is equivalent to the precession of a gyroscope due to an external force wherein the precession-production external force is the load acting on the output shaft (5). Hence the revolutionary speed of the rotor (8) varies depending upon changes in the output load and the same holds true for the rotational speed of the output shaft (5), which makes the speed ratio spontaneously vary with changes in the outpot load. Accordingly, the transmission of the present invention operates at speed ratios spontaneously varying with changes in load, without any controlling operation.

The present discloses a mid-wheel tilt-in-space manual wheelchair with a constant shoulder position. The tilting wheelchair comprises an upper section, a lower section and a tilting mechanism. The upper section comprises an upper frame defining a user's seat, a back post and an armrest. The lower section comprises a lower frame, two drive wheels and at least two guiding wheels, preferably, two rear casters and two front casters. The two drive wheels being positioned on the lower frame and have a same rotation axis. The tilting mechanism is being adapted to rotatably engage the upper section to the lower section in such a way that the pivot center of the upper section is being coincident at any moment and any position with the rotation axis of the drive wheels allowing to maintain a constant distance between a user's shoulder and each pushrim of each drive wheel.

Method for filling and closing a package including the operations of introducing two arms through the mouth, each one having or bearing a gripping tool and impressing a mutual distancing movement on the arms to expand the package with a retention mechanism which operates outside the package to grasp the walls of the package arranged between the arms and the retention mechanism while the retention mechanism approaches and fits over the gripping tool of each arm, such that when the arms move in the direction of the mouth of the package, the arms carry the grasped walls of the package to produce folds towards the interior of the package. For flexible tubular net packages, the at least one gripping tool on each arm has the shape of a protuberance and that the method includes passing through a wall of the package with the gripping tool

The invention discloses a needle bar frame body of a high-speed embroidery machine. The needle bar frame body comprises a needle bar frame, a needle bar installed on the needle bar frame and a presserfoot matched with the needle bar, wherein the presser foot comprises a presser foot rod and a presser foot structure connected to the bottom end of the presser foot rod, the presser foot structure isprovided with a first thread clamping structure and a second thread clamping structure, a hook knife penetrates through the space between the first thread clamping structure and the second thread clamping structure, the first thread clamping structure can move relative to the second thread clamping structure and can reset, the first thread clamping structure makes contact with the second thread clamping structure when being located at a reset position, the presser foot rod is provided with a matching structure, the needle rod frame is provided with a locking structure used for preventing thematching structure from moving forwards, the needle rod frame is provided with an unlocking mechanism capable of enabling the locking structure and the matching structure to generate relative displacement so as to relieve the blocking effect of the locking structure on the matching structure. The needle bar frame body has the beneficial effects that the higher function integration degree is achieved, and the technical purpose of stably keeping upper thread clamping is achieved.

The invention relates to roll-type plate flattening machine belonged to forging equipment for metals shaping, which comprises active row work roller that has larger roller diameter, no supporting roller and active beam and less roller number, fixed row work roller with supporting roller and a frame, lifting tilting equipment, balancing equipment, main gear, and electric controller; wherein, it is pin joint between bearing block and bottom end of lifting screw bar in active row work roller. This machine can reduce difference of deflections on upper and down directions and improve flattening precision.

The invention provides a flexible processing production line for a retarder. The flexible processing production line comprises a processing line (1) and an automatic line (2), wherein the processing line (1) comprises a processing device and an auxiliary device which are mutually discontinuously and linearly arranged; the automatic line (2) is used for carrying processed parts among the devices of the processing line (1); and the processing line (1) and the automatic line (2) are mutually parallel and independent. According to the flexible processing production line for the retarder, the processing line and the automatic line are separately arranged, when a new process needs to be added in a flexible line or the production capacity needs to be increased, only a corresponding machine tool needs to be added in the processing line, and the processing line is kept in the original state, so that the updating cost of the automatic flexible line is greatly reduced.

A fresh air intake system for overburden drills with an air intake assembly mounted along the drill mast to access air at the greatest practical height above ground, an air filter assembly, and a pressure blower / circulating fan assembly to supply the cleanest air practicable into the operator's cab under positive pressure. The height of the drill mast is utilized to access cleaner air at greater heights, with the air inlet located strategically toward the top of the mast. The intake assembly includes a rain cap, an intake tube mounted along the drill mast, and a flexible section at the drill mast pivot point to accommodate raising and lowering of the mast without interference or obstruction. The air filter assembly is mounted in series with the pressure blower / circulating fan assembly, which operates with negative inlet pressure and supplies filtered air under positive pressure into the enclosed cab.

An optical pickup has a first optical system and a second optical system. The optical axis of the first optical system and the optical axis of the second optical system are inclined, for example, 45 degrees with respect to the reference plane, and are parallel to each other. A first objective lens and a second objective lens are arranged substantially side-by-side in a radial direction, and the center position of the second objective lens is slightly displaced from the reference plane in a tangential direction. The first optical system and the second optical system each have a flat-shaped beam splitter; this is used to produce astigmatism for acquiring a focus error signal by the astigmatic method.

The invention belongs to the technical field of nuclear reactor system equipment, and particularly relates to a steam generator lower part horizontal supporting structure for improving the seismic resistance. The horizontal supporting structure aims to overcome the defects in the prior art, and has the effects that the seismic resistance of a steam generator and a main system is improved, and thesafety of the steam generator under an earthquake condition is ensured. The horizontal supporting structure two pull rod systems, each pull rod system comprises support lugs (2), a pull rod (3) and asupporting seat (4), wherein the pull rods (3) are arranged between the support lugs (2) and the supporting seats (4), the support lugs (2), the pull rods (3) and the supporting seats (4) are connected with one another through spherical hinges, and the support lugs (2) are fixed on the side surface of the part, between a lower end socket (6) and a pipe plate (5), of the steam generator.

The invention discloses a semi-automatic stamp making machine, and belongs to the technical field of stamp making machines. The semi-automatic stamp making machine comprises a support, a carrying table, a continuous control reciprocating intermittent movement platform, a stamp, springs and a two-dimensional paper clamping structure. The semi-automatic stamp making machine has the advantages that the stamp of the semi-automatic stamp making machine with the structure can be automatically lifted up and dropped down, accordingly, stamp affixing actions can be automated, workload on stamp users can be relieved, and the stamp use time can be saved; components can carry out reciprocating intermittent movement under the condition that a motor rotates at a constant speed, a movement state and a halt state can be seamlessly connected with each other, the motor does not need to be accurately controlled to be matched with movement parameters of the components, and the difficulty of high-precisioncontrol can be lowered; clamping structures and paper accommodating plates of the paper clamping structure can be adjusted when the semi-automatic stamp making machine works, accordingly, stamp papercan be relatively fixedly positioned, clear stamp making effects can be realized, and abrasion of the semi-automatic stamp making machine can be reduced to the greatest extent.