3113 results about "Mechanical construction" patented technology

A telemetry method and apparatus using pressure sensing elements remotely located from associated pick-up, and processing units for the sensing and monitoring of pressure within an environment. This includes remote pressure sensing apparatus incorporating a magnetically-driven resonator being hermetically-sealed within an encapsulating shell or diaphragm and associated new method of sensing pressure. The resonant structure of the magnetically-driven resonator is suitable for measuring quantities convertible to changes in mechanical stress or mass. The resonant structure can be integrated into pressure sensors, adsorbed mass sensors, strain sensors, and the like. The apparatus and method provide information by utilizing, or listening for, the residence frequency of the oscillating resonator. The resonant structure listening frequencies of greatest interest are those at the mechanical structure's fundamental or harmonic resonant frequency. The apparatus is operable within a wide range of environments for remote one-time, random, periodic, or continuous / on-going monitoring of a particular fluid environment. Applications include biomedical applications such as measuring intraocular pressure, blood pressure, and intracranial pressure sensing.

Methods and devices for providing a minimally-invasive placement of a mechanical structure for reducing the volume of a hollow body organ. Intragastric bands may be secured within the hollow body organ and then reduced in diameter to form a stricture within the hollow body organ. The strictures may be placed anywhere within the hollow body organ, and more than one stricture may be formed within the hollow body organ.

An occlusive implant delivery assembly includes a rapid response decoupling or detachment mechanism that does not effect significant migration of the implant during release. The assembly includes an occlusive implant device, such as an embolic coil, a pusher or device to carry the implant to the selected location, and an expandable coupling-decoupling mechanism for releasing the implant at the selected site. The mechanical construction provides rapid release times. In addition, the releasing mechanism generally operates without exerting any significant force on the implant, thereby avoiding any significant displacement of the implant during release.

A micromechanical structural element, having a very stable diaphragm, implemented in a pure front process and in a layer construction on a substrate. The layer construction includes at least one sacrificial layer and one diaphragm layer above the sacrificial layer, which is structured for laying bare the diaphragm and generating stabilizing elements on the diaphragm, at least one recess being generated for a stabilizing element of the diaphragm. The structure generated in the sacrificial layer is then at least superficially closed with at least one material layer being deposited above the structured sacrificial layer, this material layer forming at least a part of the diaphragm layer and being structured to generate at least one etch hole for etching the sacrificial layer, which is removed from the region under the etch hole, the diaphragm and the at least one stabilizing element being laid bare, a cavity being created under the diaphragm.

A method for adjusting with high precision the width of gaps between micromachined structures or devices in an epitaxial reactor environment. Providing a partially formed micromechanical device, comprising a substrate layer, a sacrificial layer including silicon dioxide deposited or grown on the substrate and etched to create desired holes and / or trenches through to the substrate layer, and a function layer deposited on the sacrificial layer and the exposed portions of the substrate layer and then etched to define micromechanical structures or devices therein. The etching process exposes the sacrificial layer underlying the removed function layer material. Cleaning residues from the surface of the device, then epitaxially depositing a layer of gap narrowing material selectively on the surfaces of the device. The selection of deposition surfaces determined by choice of materials and the temperature and pressure of the epitaxy carrier gas. The gap narrowing epitaxial deposition continues until a desired gap width is achieved, as determined by, for example, an optical detection arrangement. Following the gap narrowing step, the micromachined structures or devices may be released from their respective underlying sacrificial layer.

The present invention generally relates to a mechanical structure having electronic circuits that easily and quickly connect together. The mechanical structures may be building blocks which are stackable and reusable. The building blocks may be removably held together by, for example, gravity and / or friction. The building blocks have electronic circuits which may have numerous uses, including, but not limited to educational, industrial and entertainment uses. More specifically, a building block of the present invention may be insert on, and secured to, a second building block. The building blocks may be identical or may have different features which accomplish varying desired functions. For example, a building block of the present invention may have a light and / or sound feature. In addition, the circuitry of the building blocks of the present invention has unique electronic paths which prevent electronic shorts across a power source. More specifically, the electronic paths of the building blocks have diagonal spacing which may not be shorted as a result of the mechanical limitations in stacking the building blocks

An ambulatory mechanical leg system drives a mechanical leg (100, 21) with a crank (91) to pivot about a pivot axis (102) to produce uniform rectilinear motion at the distal end (41) of the leg (100, 21) during a stride stroke (51) portion of a crank revolution or cycle and then lifts the distal end (41) to fast-return it in a step stroke (61) during the remainder of the revolution to a starting point for the next stride stroke (51). The crank (91), leg (100, 21) and pivot axis (102) sizes and proportional lengths or distances are modeled to an angular profile that produces nearly constant velocity, and mechanical structures maintain nearly rectilinear motion, of the distal end (41) of the leg (100, 21) during the stride stroke (51).

There are many inventions described and illustrated herein. In one aspect, there is described a thin film or wafer encapsulated MEMS, and technique of fabricating or manufacturing a thin film or wafer encapsulated MEMS employing anti-stiction techniques. In one embodiment, after encapsulation of the MEMS, an anti-stiction channel is formed thereby providing “access” to the chamber containing some or all of the active members or electrodes of the mechanical structures. Thereafter, an anti-stiction fluid (for example, gas or gas-vapor) is introduced into the chamber via the anti-stiction channel. The anti-stiction fluid may deposit on one, some or all of the active members of the mechanical structures thereby providing an anti-stiction layer (for example, a monolayer coating or self-assembled monolayer) and / or out-gassing molecules on such members or electrodes. After introduction and / or application of the anti-stiction fluid, the anti-stiction channel may be sealed, capped, plugged and / or closed.

The invention discloses an architectural engineering construction device based on the 3D printing technology and an application method. The architectural engineering construction device is applied to the field of architectural engineering construction through the 3D printing technology. The whole architectural engineering construction device comprises a 3D printer system, a concrete pump pouring system which is synchronous with the 3D printer system and is used for concrete pouring, a circuit equipment unit and an interface and data processing unit. The 3D printer system comprises a stereoscopic control positioning device with three axes of X, Y and Z axes, and a printing extrusion head device, wherein the stereoscopic control positioning device with the three axes of X, Y and Z axes is used for achieving 3D printing on a formwork. The circuit equipment unit comprises a power supply device, a control circuit board, an extrusion head positioning sensor and a material measurement sensor. The interface and data processing unit comprises a sensor interface used for analyzing and controlling the whole system and measuring the surroundings. The architectural engineering construction device based on the 3D printing technology and the application method improve the mechanical construction level and efficiency of architectural engineering, and reduce consumption of architectural materials and energy.

An etching method, such as for forming a micromechanical device, is disclosed. One embodiment of the method is for releasing a micromechanical structure, comprising, providing a substrate; providing a sacrificial layer directly or indirectly on the substrate; providing one or more micromechanical structural layers on the sacrificial layer; performing a first etch to remove a portion of the sacrificial layer, the first etch comprising providing an etchant gas and energizing the etchant gas so as to allow the etchant gas to physically, or chemically and physically, remove the portion of the sacrificial layer; performing a second etch to remove additional sacrificial material in the sacrificial layer, the second etch comprising providing a gas that chemically but not physically etches the additional sacrificial material. Another embodiment of the method is for etching a silicon material on or within a substrate, comprising: performing a first etch to remove a portion of the silicon, the first etch comprising providing an etchant gas and energizing the etchant gas so as to allow the etchant gas to physically, or chemically and physically, remove the portion of silicon; performing a second etch to remove additional silicon, the second etch comprising providing an etchant gas that chemically but not physically etches the additional silicon.

A method for mapping a complex sedimentary basin is disclosed. A grid representative of the current architecture of the basin is constructed. A mechanical structural restoration is applied in three dimensions so as to reconstruct the past architectures of the basin from the current time up to a geological time t. A simulation of the geological and geochemical processes that govern the formation of a petroleum reservoir is then carried out, directly in the grids obtained from the restoration, from the geological time t to the current one. This simulation is thereafter used for mapping the sedimentary basin so as to identify zones of the basin where hydrocarbons may have accumulated.

A deformable medical implant, comprising: a body defining at least two anchor points, which body is adapted to be deformed so that the two anchor points are moved relative to each other; at least two elongate extensions, each extension fixed to one anchor point; a bridge coupling at least two of said extensions to each other; and at least two hinges defined on at least one of said extensions, two of said at least two hinges having different preferred bending directions and being defined on one extension.

The invention discloses a method for manufacturing a five-axle linkage control three-dimensional printing device. The device is used for realizing an ink printing function on the surface of any three dimensional entity. The device mainly comprises a control system, a mechanical motion structure and a printing system, wherein the control system is based on five-axle linkage for motion control, which realizes motion control and printing control synchronously and the functions of three-dimensional computer-aided design and computer-aided process, and also realizes the functions of five-axle linkage motion trajectory planning and synchronous color resolution required by three-dimensional printing; the mechanical motion structure adopts a five-axle linkage mechanical structure, which realizes the functions of linkage of three linear motions and two rotary motions; and the printing system adopts four spray nozzles with independent telescopic function, which partly realizes the CMYK (Cyan, Magenta, Yellow and Black) four-color ink printing function.

The invention provides a microminiature rotorcraft experiment platform and an application thereof. The microminiature rotorcraft experiment platform comprises an experiment platform base, a globe joint bearing, a microminiature rotorcraft, a six-dimensional force sensor, onboard circuit hardware and an upper computer, wherein the six-dimensional force sensor is connected between the experiment platform base and a stator of the globe joint bearing; and the microminiature rotorcraft is provided with the onboard circuit hardware. The experiment platform is the microminiature rotorcraft experiment platform with wide application range, the use range of the traditional rotorcraft experiment platform or three degree of freedom experimental device with a single function can be greatly expanded, the experimental requirement of the rotorcraft can be furthest satisfied. The microminiature rotorcraft experiment platform disclosed by the invention can be used for replacing the traditional practical flight test and has the advantages of simple mechanical structure and strong popularity and is easy to realize.

A combined electromagnetic acoustic transducer (EMAT) is disclosed adapted to generate both SH-type acoustic waves and LAMB-type acoustic waves in a conductive casing, surroundings of which are to be analyzed. The transducer comprises one magnet assembly and two RF coils implemented as multi-layer printed circuit board. Each coil is used to generate or receive acoustic signals of one wave type. Compared to using two single-wave-type transducers the combined EMAT significantly reduces total attraction force to the casing and, correspondingly, simplifies mechanics of the measurement tool. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

The present invention provides a time of flight mass spectrometer having a spiral flight path, whose mass resolution can be appropriately changed with respect to the analysis object or other factor without any complicated alteration or addition of the mechanical construction. In a specific form of the invention, the mass spectrometer includes deflecting electrodes 20-23 located between semi-cylindrical electrodes 11 and 12 for making ions fly along a spiral path. The deflecting electrodes 20-23 generate deflecting electric fields for shifting the ions in the axial direction of the semi-cylindrical electrodes 11 and 12. The voltage applied to the deflecting electrodes 20-23 is changed according to the mass resolution required. The deflecting electric fields are generated or removed with the change of the voltage, which makes the ions fly either along a spiral path or in the same loop orbit. The flight distance of the ions can be controlled as desired by regulating the voltage so that the ions fly in the loop orbit an appropriate number of times. Thus, the mass resolution can be arbitrarily controlled.

The present invention relates to one kind of industrial movable robot, which includes one robot carrying vehicle with one driving motor and four wheels, computer and vehicular power supply on the vehicle, one cell charger comprising power supplying end and power accepting end suitable for use in different outdoor environment, one navigation information transfer unit comprising GPS and laser ranging sensor, and one power transformer and power distributor detecting unit comprising temperature detector for electric equipment, joint and line, image acquirer for electric equipment and instrument, and sound acquirer for noise one electric equipment. The present invention has compact and reasonable mechanical structure and high universality, and may be used widely for round inspection of various electric equipment and line.

The present invention discloses an underwater cleaning robot. The robot can work in the mode of remote and self-control and comprises a drainage mechanism, a cleaning and mobile platform as well as a control system. With the configuration and division of the drainage mechanism, the cleaning and mobile platform as well as the control system, the robot can undergo cleaning work autonomously or by remote control under water, on horizontal plane, vertical plane as well as tilt plane. The present invention has the characteristics of light weight, large capacity, compact and reasonable mechanical structure as well as good practicality, stability, energy saving, economy and generality, etc, and is the robot which can be used for underwater cleaning for the bottom of swimming pool and the pool wall.

The invention discloses an automatic wire arranging device and belongs to the technical field of cable manufacturing. The existing wire arranging method is prone to notches, wire accumulation and wire jumping. The device comprises a portal frame, a transverse moving platform, a mechanical arm, a lifting mechanism, a horizontal moving mechanism, a dynamic complementing mechanism, an automatic reversing mechanism, a wire winding mechanism, a portal auxiliary frame, a controller and an encoder. Wire arranging is conducted according to a set pitch, in a wire arranging process, the wire arranging device can conduct position complementing control according to actual production conditions, a sheathed line and a designed mechanism structure are arranged in a set angle range, and the conditions of notches and wire jumping during wire arranging can not happen.

The invention relates to an agricultural intelligent mobile robot platform consisting of a vehicular platform and a control system; wherein, the vehicular platform comprises a front beam, a back beam, a compartment fixed on the front beam and the back beam as well as four identical drive assemblies arranged on both ends of the front beam and the back beam; wherein, each assembly comprises a steering bracket, a steering motor, a drive motor and a vehicle wheel; wherein, the steering motor is fixed on one end of the beam; the steering bracket is connected with an output shaft of the steering motor; the drive motor and the wheel of a drive wheel are arranged on the steering bracket; the compartment is arranged at the upper side of the front beam and the back beam; the control system comprises an industrial personal computer, a CAN bus, a lower computer and sensors, such as GPS and a camera, etc. The platform has the advantage that the mechanical structure of the platform is modularized and simplified, lumpish differential mechanisms are avoided so as to provide convenience for the refit and reconstruction of platform drive forms, the platform has profiling capability with the ground so as to significantly adapt to farmland environment and crop features, and the platform also has good autonomous navigation capacity in farmland environment.

Aluminum-magnesium alloy product for welded mechanical construction, having the following composition, in weight percent: Mg 3.5-6.0, Mn 0.4-1.2, Zn 0.4-1.5, Zr 0.25 max., Cr 0.3 max., Ti 0.2 max., Fe 0.5 max., Si 0.5 max., Cu 0.4 max.; one or more selected from the group: Bi 0.005-0.1, Pb 0.005-0.1, Sn 0.01-0.1, Ag 0.01-0.5, Sc 0.01-0.5, Li 0.01-0.5, V 0.01-0.3, Ce 0.01-0.3, Y 0.01-0.3, and Ni 0.01-0.3; others (each) 0.05 max., (total) 0.15 max.; and balance aluminum.

The invention discloses a cam-type negative pressure adhering wall-climbing robot. By means of an inverse cam mechanism and a passive vacuum absorption mechanism, the negative pressure absorption function of a sucker is achieved and the limitation brought by a vacuum source device is eliminated. The adsorbing and detaching process of the vacuum sucker is easy through a mechanical structure. The structure is simple and the absorption force of the sucker is strong due to the negative pressure. By means of an adsorbing steering mechanism, the limitation of the minimum turning radius of a tracked robot is avoided and the pivot steering function is achieved. Adsorbing moving mechanisms are positioned on the two sides of a main baseboard of the robot; a steering power mechanism is fixed on the main baseboard; steering wheel components are connected with the steering power mechanism through flexible threaded rods; and by adjusting the position of a cam track groove, a steering auxiliary mechanism mounted on the main baseboard enables the adsorbing steering mechanism to work. The linear moving portion is connected with the linear steering portion through a screw transmission manner, the moving process of the robot is achieved through reasonable step arrangements, so that the cam-type negative pressure adsorption wall-climbing robot is easy to control and applicable to wide working range.

The invention discloses a joint track type travel mechanism, which relates to the technical field of vehicles and robots. To solve low climbing obstacle capability and other problems, the following technical proposal is presented: a joint track type travel mechanism includes a vehicle body (8) and a circuit, and is characterized in that the joint track type travel mechanism also includes four track legs (2), a swing arm, two synchronous belts (10), two sets of drive worm and worm wheel (16), four sets of swing arm worm and worm wheel (17), two drive transmission shafts (5), four swing arm transmission shafts (7), two drive motors (15), four swing arm motors(9), four swing arm driving gears (6), two front synchronous pulleys (2), two rear synchronous pulleys (11) and two rotational shafts (13). The invention has the advantages that a travel mechanism with distinctive style and structure is provided, which has strong climbing obstacle capability, can independently, flexibly and quickly climb the stairs and terrace depending on the mechanical and structural characteristics of the travel mechanism, without manual interference.

The invention relates to a mechanical automatic butting and releasing device, which comprises a drop hanger part and a hanger rod part. The drop hanger part comprises a cylindrical drop hanger body of which an upper end flange is connected with a lifting wire rope through a wire rope joint, and the interior of a lower end flange is provided with at least two shaft pin sliding bushes on the same axial cross section along the radial direction. A spring shaft pin which can flex under the action of a compression spring is arranged in each of the shaft pin sliding bushes; and the hanger rod part comprises a step cylindrical hanger rod body of which the top end is provided with a hanger rod head capable of sliding along the inner wall of the drop hanger body and matching the front end of the spring shaft pin in a blocking mode. A releasing sliding ring which can slide axially along the hanger rod body is arranged between the hanger rod head and steps of the hanger rod body. The upper ring surface and the lower ring surface of the releasing sliding ring are matched with the shapes of the front ends of the spring shaft pins so that the releasing sliding ring can press the spring shaft pins into the shaft pin sliding bushes when the releasing sliding ring passes through the spring shaft pins. The bottom end of the hanger rod body is provided with a clamping device for connecting a hung device. The mechanical automatic butting and releasing device uses a pure mechanical structure to effectively realize the automatic butting and releasing of an underwater operating device.

A method for fabricating an adhesion-resistant microelectromechanical device is disclosed wherein amorphous hydrogenated carbon is used as a coating or structural material to prevent adhesive failures during the formation and operation of a microelectromechanical device.

The invention provides an engineering nonlinear vibration inspection method. The method adopts a wavelet nonlinear threshold value filtering wave to filter wide-frequency background noise of a three-direction acceleration signal and to remove DC bias so as to get the treated acceleration signals after frequency domain filtering and removal of trend term. Then speed signals and displacement signals are obtained after the acceleration signals is subject to a first time and second time integrals and removal of trend term. The characteristics and types of the nonlinear vibration are determined through a three-dimensional phase space diagram and other calculations of a reconstructed phase space tested by the three-dimensional phase space diagram. The invention adopts three-direction low resistance piezoelectricity acceleration meter to measure the vibration accelerations of three orthogonal directions. The invention has convenient installation, easy usage and reliable analysis, overcomes the problems of drifting, delay and aberration of the actual acceleration signals after passing through analog integration or digital integration. The invention plays an important role in the engineering nonlinear vibration inspection for mechanical mechanisms, bridges, dams and buildings, etc.

The invention discloses a multi-rotator leg-wheeled multifunctional aerial robot and a motion planning method thereof. The robot comprises rotators A, B, C and D, rotator driving motors A, B, C and D, wall-climbing thighs A and B, wall-climbing legs A and B, hip joint driving motors A and B, knee joint driving motors A and B, a robot main body, a wall-surface running wheels A and B, a ground supporting rod, rotating supporting rods and a rigidity-strengthened ring. The motion planning process comprises the motion planning of the robot in flight state, the motion planning of the robot undergoing a change from the flight state to a wall climbing state, the motion planning of the robot in a wall climbing state, the motion planning of the robot crossing an obstacle during wall climbing, and the motion planning of the robot undergoing a change from the wall climbing state to the flight state. The robot realizes the fusion of a rotator type aircraft and a leg-wheeled movement mechanism, is simple in mechanical structure and easy to realize, and has the advantages of high stability, small volume, strong adaptability to wall surfaces, large obstacle crossing capacity, wide application range and the like.

A crack growth rate and crack growth life prediction method for a mechanical structure belongs to a calculation method for fatigue crack growth rate and crack growth length of the mechanical structure. At first, a relationship between S-N and P-S-N curve expressions (power function form) and a crack growth rate curve expression (Paris formula) is built up in the method. A determination method of the crack growth rate under the conditions of block spectrum load, overload hysteresis load and random load is proposed. And a determination method of Paris curve parameters is provided when the S-N and P-S-N curves cannot be expressed in power function form. And a method for improving the prediction precision of the crack growth rate and the crack growth life is proposed. The S-N and P-S-N curves are used by the method to predict the crack growth rate and the crack growth life. Therefore, the method has the advantages of little dependence on tests and high precision and can shorten the product development period and save much manpower, material resources and financial resources.