134results about How to "High rigidity" patented technology

Provided is a forceps tip assembly capable of supporting a forceps tip with high rigidity in order to realize a laparoscopic surgery requiring a significant power with the forceps tip, such as an organ removal surgery which has been heretofore difficult to be performed by a robot for medical use. The forceps tip assembly includes: a forceps tip supporting member which has a supporting part for supporting a forceps tip and three leg parts which are disposed at even intervals in a circumferential direction around a central axis line C1 and fixed to the supporting part so as to protrude backward from the supporting part; and three back-and-forth moving members which are disposed at even intervals in a circumferential direction around a predetermined central axis line C2 extending in a front-to-rear direction, which have their front end portions coupled with the three leg pads swingably and slidably in a direction orthogonal to the predetermined central axis line C2 and which are mutually coupled together as relatively movable in the extending direction of central axis line C2.

A projection optical device includes a projection optical system which projects an image of a pattern, a support device having a flexible structure to support the projection optical system, and a positioning device having an actuator to position the projection optical system. The projection optical device can include a frame to which one end of the flexible structure is attached. The projection optical system may hang from the frame via the support device, or it may be supported from below by the support device. A projection optical device also can include a liquid supply which supplies a temperature-controlled liquid to a side surface of a projection optical system utilizing gravity to cause the temperature-controlled liquid to flow along the side surface of the projection optical system.

A unit detachably mountable to an apparatus main assembly s provided with a coupling for receiving a rotational driving force from the apparatus main assembly. Also the apparatus main assembly is provided with a coupling to be engaged with the coupling of the unit. At least one of these couplings can be pushed in a direction parallel to a rotation shaft and one of the couplings is provided with an inclined surface. During mounting and demounting of the unit, the engagement between the couplings is released by the pushing-in of one of the couplings pushed by the inclined surface.

In the generator arrangement according to the invention at least one main bearing is arranged between the generator and the hub wherein the rotor of the generator is supported only on the front end of a rigid carrier in the form of a support disc (30). The support disc is a hollow chamber structure of low weight and high rigidity.

In a silicon microphone, a corrugation is formed in a conductive layer between a center portion forming a diaphragm and a periphery, wherein the corrugation is formed on an imaginary line connecting a plurality of supports formed in a circumferential direction of the conductive layer, whereby it is possible to increase the rigidity of the conductive layer; hence, distortion or deformation may hardly occur in the conductive layer irrespective of variations of stress applied thereto. Alternatively, a planar portion is continuously formed on both sides of a step portion in the plate so as to increase its rigidity, wherein a plurality of holes are uniformly formed and arranged in the planar portion by avoiding the step portion. Thus, it is possible to realize a high sensitivity and uniformity of performance and characteristics in the silicon microphone.

At a side portion 22 of a seat back frame, not only does a rear first extending portion 52 bend and extend from a frame side plate portion 30 toward a seat back inner side at an obtuse angle, but also, in a vicinity of a central portion of a rear flange portion 50, a rear second extending portion 54 bends and extends from the rear first extending portion 52 further toward the seat back inner side. Therefore, even if a relatively large load toward a rear of a vehicle acts on the seat back frame and compressive stress is generated at an intermediate portion of the rear flange portion 50 in a heightwise direction of a seat back, it is difficult for cross-sectional collapsing to arise, and the load can be effectively supported at the frame side plate portion 30. There can be provided a seat back frame for a vehicle which can suppress an amount of bending deformation at the time of a rear collision, without leading to an increase in weight.

The invention provides a manufacturing method of a carbon fiber composite material rectangular hollow pipe for a mechanical arm, and the obtained rectangular hollow pipe. A carbon fiber composite material serves as a raw material and is carbon fiber prepreg; the prepreg comprises one-way and fabric prepregs and the rectangular hollow pipe is manufactured by a mould pressing inflation forming method. According to the manufacturing method of the carbon fiber composite material rectangular hollow pipe, a rectangular thin-walled hollow pipe is manufactured by performing mould pressing inflation combined forming on the carbon fiber prepreg serving as the raw material. Compared with the prior art, the invention has the advantages that the carbon fiber composite material rectangular hollow pipe has high bearing capacity, high rigidity and light weight; during operation, the arm is more stable in action and moves and stops more quickly; the arm can be quickly positioned by the vibration damping characteristic of the carbon fiber composite material; the carbon fiber composite material is applicable to precision equipment due to the zero thermal expansion coefficient; equipment investment is small; a mould is simple to manufacture; production energy consumption is low; production period is short; automatic production is realized.

The invention discloses a spatial redundant drive swinging experiment table with two degrees of freedom, which comprises a static platform at the bottom, wherein an upright post is fixed at the center of the static platform; the upright post is connected with a movable platform through a first Hooke joint; two second Hooke joints are arranged at one end below the movable platform in symmetrical positions and are respectively connected with a first drive hydraulic cylinder; the lower end of each first drive hydraulic cylinder is connected with the static platform through a third Hooke joint; the center line of the other end below the movable platform is connected with a second drive hydraulic cylinder through a fourth Hooke joint; the distance between the center of the fourth Hooke joint and the movable platform is equal to the distance between the center of the first Hooke joint and the movable platform; the lower surface of the second drive hydraulic cylinder is connected with the static platform through a fifth Hooke joint; each first drive hydraulic cylinder drives the swinging experiment table to swing transversely and longitudinally; and the second drive hydraulic cylinder cooperates with each first drive hydraulic cylinder to drive the swinging experiment table to swing transversely and longitudinally. By innovation of a mechanism and a drive method, the invention can meet the requirements of heavy load and high accuracy for the swinging experiment table in a ship simulation process and has the advantages of simple mechanism and convenient operation.

The invention relates to an accelerator pedal module for controlling the power of a driving engine having a pedal lever held rotatably about a pivot axis by means of a pivot connection on a bearing block, which pedal lever can be made to strike an associated bearing block stop by at least one pedal lever stop. In the region of the pedal lever stop and / or the bearing block stop, elasticities are present such that during a relative rotary motion executed about the pivot axis between the pedal lever and the bearing block to establish the pivot connection, the pedal lever stop slides past the bearing block stop because of elastic deformations and after springing back engages the bearing block stop from behind.

The invention relates to high-speed electrical submersible pumps used for hydrocarbons production from oil wells with high concentration of solids. The technical result such as a longer service life is achieved with the technical design, wherein the pump comprises: a housing with a head and a base, a compression nut, a shaft installed on a journal bearing, stages of impellers and spacers installed on the shaft, set of diffusers installed on the housing, wherein the diffusers and impellers are manufactured from a ceramic material. The preferable design has metal spacers between the diffusers, wherein the length of the diffuser spacer between the contact surfaces equals the distance between the impeller spacers.

The invention discloses an all-around multifunctional climbing robot, and belongs to the technical field of automatic control. The all-around multifunctional climbing robot solves the technical problems that in the prior art, the cleaning efficiency is low, the cleaning is incomplete, the cleaning is not adapted to an un-flat wall surface, and accidents easily happen. The all-around multifunctional climbing robot comprises a cleaning mechanism, a front compartment body, a rear compartment body, a steering engine, a plurality of cyclone type vacuum suckers, a turbine, a steering mechanism, a drive system and a caterpillar band mechanism, wherein the turbine is fixedly connected in the front compartment body; the steering engine is fixedly connected with the front compartment body and the rear compartment body respectively; the cleaning mechanism comprises a watering mechanism and a cleaning plate which are connected with the front compartment body and the rear compartment body respectively; the caterpillar band mechanism is connected with the front compartment body and the rear compartment body respectively; the cyclone type vacuum suckers are uniformly distributed on the front compartment body and the rear compartment body; each cyclone type vacuum sucker is in spherical hinge connection with the front compartment body or the rear compartment body; the steering mechanism is distributed in the front compartment body; the drive system is distributed in the front compartment body and the rear compartment body; the turbine is connected with each cyclone type vacuum sucker through a pipeline, and used for providing air pressure to each cyclone type vacuum sucker.

A roller lifter for internal combustion engines is provided, which has higher rigidity of the lifter body, prevents cocking in the cylinder, and can achieve a size reduction. The roller lifter includes a cylindrical lifter body having a sliding surface on an outer circumferential surface thereof and a roller rotatably attached to the lifter body via an axial support pin and making contact with a rotating cam lobe. The lifter body includes a pair of support portions supporting the axial support pin. The axial support pin is mechanically fastened to the pair of support portions, with both ends thereof inserted in support holes formed in the support portions. The lifter body includes an anti-rotation retainer extending radially outward from the sliding surface. The sliding surface is formed on both front and rear sides in the sliding direction of the anti-rotation retainer.

A bonnet for an automobile, the bonnet having an outer made from FRP and an inner made from FRP, joined to the back-surface side of the outer, wherein the inner is separated into two parts in the forward and backward direction of a vehicle body. The bonnet can satisfy impact absorbing performance and predetermined required performance for deformation in a collision accident etc., and can improve easiness of production.

The invention discloses a single-piston-rod damper and belongs to the technical field of structural vibration control devices. The single-piston-rod damper comprises a cylinder which is divided into a working chamber and a compensation chamber, the working chamber and the compensation chamber are separated from each other through a floating piston which is sealed together with the cylinder, and the working chamber is filled with shear thickening fluid (STF); one end, with the tip being connected with a working piston, of the piston rod is arranged in the working chamber in the cylinder, and the other end of the piston rod is arranged outside the cylinder and connected with an upper connecting part; and an elastic part is arranged in the compensation chamber, one end of the elastic part is connected with the floating piston, and the other end of the elastic part is connected to a rubber piston arranged at the end of the cylinder. When the shearing rate is high and the instantaneous vibration velocity in the working chamber is high, shear thickening of the STF occurs to generate damping force, so that the anti-impact vibration-reduction effect of engineering structures is achieved; and when the shearing rate is low and the instantaneous vibration velocity in the working chamber is low, the elastic part in the compensation chamber elastically compensates for the initial rigidity of the damper, so that vibration reduction and energy dissipation of the engineering structures are achieved. The single-piston-rod damper is provided with the elastic compensation chamber to provide appropriate compensation rigidity, and the anti-impact vibration-reduction effect of the damper is achieved.

A three-dimensional joint structure of a support frame for vehicles can include two hollow profiles, of which the first hollow profile has at least one planar side and is cut through around its circumference except for a web lying in this planar side and is bent around this web. The second hollow profile has at least two planar sides that press against the ends of the first hollow profile resulting from the cutting and bending. The two hollow profiles are integrally joined to one another at the edge region of the ends.

At least one exemplary embodiment is directed to an optical unit adapted to irradiate image exposure light to an image carrier comprises a frame containing optical parts arranged therein and having an opening, and a cover adapted to cover the opening. The cover can be fixed by fixing members to the frame at three points in a first plane including the opening. The cover can further be fixed by fixing members to the frame at a second plane positioned on the frame and being adjacent to the first plane and at a third plane positioned on the frame and being not parallel to the second plane. Thus, an optical unit can be obtained which has high rigidity while, when the cover is attached to the opening, maintaining satisfactory flatness of the cover in a plane including the opening.

A FRP reinforced rubber vibration isolator and manufacturing method thereof, relate to a vibration isolator and a manufacturing method thereof. The vibration isolator is formed by a rubber layer and a FRP plate with adhesive layers arranged on the upper and lower surfaces which are staggeredly superposed, vulcanized and bonded, wherein the FRP plate is made of fiber reinforced materials and a resin substrate, the fiber reinforced material is one or more of glass fiber, high-strength glass fiber, carbon fiber, aramid fiber, basalt fiber or polyester fiber, the resin substrate is one of the epoxy resin, unsaturated polyester resin, phenolic resin or vinyl ester resin, the FRP plate is formed by superposing 1 to 50 single layer plate which have different principal directions. The manufacturing method comprises preparing FRP plate, arranging adhesive layer, superposing, vulcanization molding. The vibration isolator has higher bearing capacity and excellent damping performance, durability, corrosion resistance, and has simple and applicable manufacturing method.

A photocurable resin composition for three-dimensional photofabrication operations, including stereolithography, comprising (A) a cationically polymerizable compound having two or more bisphenol structures and one or more hydroxyl groups, (B) a cationically polymerizable compound other than the component (A), (C) a cationic photoinitiator, (D) a radically polymerizable compound, (E) a radical photoinitiator, and (F) multilayer polymer particles having a core and a shell layer, the shell layer containing functional group-modified rubber polymer particles having at least one reactive functional group.

On producing a glass substrate for a magnetic disk, a side surface of a cylindrical glass material (3) is polished or mirror-finished before the cylindrical glass material is cut in a direction perpendicular to a center axis of the cylindrical glass material to produce a glass disk which constitutes the glass substrate.

The present invention discloses an automobile engine assembly epicyclic box applicable to several models. The invented automobile engine assembly epicyclic box includes pallet assembly, supporting head assembly and box cover. The pallet assembly is formed from pallet, slideways and buckle latches, on the pallet two fixed slideways are set, said two fixed slideways are parallelly-arranged, two ends of two mobile slideways are respectively fixed on the tracks of said two fixed slideways, in the front of pallet and in the back of pallet are respectively set two buckle latches; the box cover is connected with pallet by means of buckle latch; the supporting head assembly includes fixed seat, threaded rod, swivel nut, steel tube and base seat, the fixed seat is connected with the threaded rod by means of pin shaft, the upper and lower two sides of bearing surface of said fixed seat are respectively equipped with hole, the swivel nut is placed outside of said threaded rod, the swivel nut exterior is equipped with said steel tube, the swivel nut, steel tube and base seat are welded into one body, and the base seat is fixed on the mobile slideway.

The invention relates to the field of construction and in particular to a modular construction system used for building of construction modules. The construction system comprises plurality of flat elements (1) with identical thickness C and having slots (3) on at least one of its long sides (4), as the slots (3) are located at a distance from each other so that the flat elements (1) can intersect each other through their slots (3) in order to form a grid. The elements (1) of the system have slots (3) located at equal distances n or b from each other where the ratio n:b is within the range from 1:1 to 1:10. The building construction module is made as three-dimensional frame structure shaped like polyhedron including a floor (20), a ceiling (21) and at least two walls (22) grids connected together. The grids are made by intersecting through slots (3) flat elements (1).

To provide a levitation air plate that can be easily manufactured and can float a substance being conveyed such as a glass while maintaining its high rigidity and controlling a floating amount in high accuracy. A levitation air plate 1 provided with: a top plate 2 in which a plurality of air ejection holes 2c and suction holes 2d penetrating from an upper surface 2a to a lower surface 2b are arranged in alternating fashion as viewed from the upper surface, the top plate 2 having a counter-bored portion 2e on the lower surface side of each of the plurality of air ejection holes; an orifice sheet 3 having a plurality of orifices 3c penetrating from an upper surface 3a to a lower surface 3b in positions corresponding to the counter-bored portions of the top plate, and having communicating holes 3d communicated one-to-one with the suction holes of the top plate and penetrating from the upper surface to the lower surface; and bottom side plates 4, 5 having an air supply channel 4c and an air supply hole 5c for supplying air to all of the orifices drilled in the orifice sheet, and an air suction channel 4d and a suction hole 5d for suctioning air from all of the communicating holes communicated with the suction holes.

In a seal gasket-integrated MEA (45) in which a frame (450) having a sealing part (459) is integrally formed around a membrane-electrode assembly (MEA section 451), a high-rigidity member (458) having higher rigidity than the frame (450) is provide around a frame (450) having relatively low rigidity.

A robot-aided pelvis restoration system comprises a reset execution unit, a fixing unit, a supporting unit and a control unit, wherein the rest execution unit is fixed to the upper portion of the supporting unit, and the fixing unit is fixed to the front end of the reset execution unit and is fixedly connected with the supporting unit. The robot-aided pelvis restoration system aims at solving the problems of poor fracture reduction, large in operation strength of a doctor and large in quantity of rays radiated onto the doctor performing operation and a patient. In the robot-aided pelvis restoration system, the configuration of a rotary motion mechanism enable rotation errors output by the system to be smaller, and the system has the advantages of being high in mechanism accuracy, large in load and rigidity, reasonable in working space, compact in structure and the like and has wide application prospect in the technical field of medical instruments.

A weather strip has a trim part adapted to be mounted on a flange, a seal part having a hollow portion and a cover lip. The trim part has a bottom wall portion, and an interior and an exterior side wall portions which constitute a pair of side wall portions and is formed into a shape, as a whole, having a substantially U-shaped cross section, and an insert of a center bonded type is embedded in the interior of the trim part so constructed. In a skeletal piece of the insert, an angle θa formed by a bottom wall part embedded in the bottom wall portion and an internal part embedded in the interior side wall portion and an angle θb formed by the bottom wall part and an external part embedded in the exterior side wall portion are made to form acute angles.

The invention discloses a method for preparing a heat control coating layer on the surface of magnesium alloy, which relates to a method for preparing a heat control coating layer on the surface of alloy. The invention solves the problem of large mass of the heat control coating layer of aluminum alloy as a base body. The preparation method is realized according to the following steps of: preprocessing the surface of magnesium alloy; preparing magnesium alloy microarc oxidation electrolyte; adding the magnesium alloy microarc oxidation electrolyte into a microarc oxidation electrolytic bath; placing the preprocessed magnesium alloy into the magnesium alloy microarc oxidation electrolyte to be used as an anode; supplying power by a pulse microarc oxidation power supply to react for 5-40 minutes; then washing the surface of magnesium alloy with distilled water and drying to obtain the heat control coating layer on the surface of the magnesium alloy. The density of the magnesium alloy used by the invention is small, is just 1.73g / cm3 and is about two thirds of the density of the aluminum alloy. Compared with a method by adopting the aluminum alloy, the heat control coating layer obtained by the method reduces weight by 30 percent.

The invention relates to a mechanical seal ring with maple-leaf-like grooves. 2-50 maple-leaf-like grooves are circumferentially and evenly distributed in one end surface of the seal ring and are 1-100 mu m deep; each maple-leaf-like groove comprises a radial linear groove and five grooves, four of the five grooves are symmetrically distributed on two sides of the radial linear groove, another groove is connected with one end, close to the inner diameter of the seal ring, of the radial linear groove, and the radial linear groove is opened in the edge of the outer diameter of the seal ring; and the maple-leaf-like grooves are symmetric about the radial central axis. The seal ring is applicable to one-way rotation and two-way rotation machinery, is used for liquid sealing or dry gas sealing, can effectively reduce abrasions of seal end surfaces, has the relatively good flow guiding effect, the better opening force and the smaller leakage amount, has the better sealing effect and dynamic pressure performance, runs more stably and is wider in application range, and the cost is saved.

A force transducer of beam and ring type is prepared as applying force-bearing structure of beam and ring integrated form, using force acted on beam to cause strain value at four strain sensitive positions on internal wall of ring structure in middle to be varied, measuring out acting force size by measuring strain at four said positions, arranging concave-convex structure at internal wall of ring structure, using rubber cover to seal said transducer and using press plate to fit said rubber cover with internal surface of ring structure closely to undertake seal function.

Fine catalyst particles are loaded on a sol-gel method porous carrier having fine pores of 0.1-50 nm and a carbon compound is decomposed to form a carbon nanotube film on the carrier that is aligned perpendicular to the carrier surface. The starting sol to be processed by a sol-gel method is a dispersion of fine alumina particles, fine aluminum hydroxide particles, fine silica particles or mixtures thereof. Alternatively, the starting sol may be an aluminum alkoxide, an alkoxysilane, a mixture thereof or a solution of an aluminum alkoxide, an alkoxysilane or a mixture thereof. If desired, a flammable or a thermally decomposable organic compound may be added as a microporous template.