33results about How to "Small displacement" patented technology

A conductive pattern basically has a substantially polygonal outline shape which is a polygon and can have a high peak value of the electromagnetic wave absorption amount as compared to a case when the conductive pattern has a circular outline shape. Thus, the conductive pattern is basically a polygon and at least one corner portion is shaped in curve. This reduces or even minimizes the shift of the frequency at which the absorption amount becomes a peak value by the polarization direction of the electromagnetic wave. Accordingly, in at least one embodiment, it is possible to realize an electromagnetic absorber having an excellent electromagnetic wave absorption characteristic exhibiting a high peak value of the absorption amount of the electromagnetic wave and a small shift of frequency at which the absorption amount becomes a peak value by the polarization direction of the electromagnetic wave.

Disclosed herein is a muscular motion simulating system that is capable of simulating a force-displacement characteristic of an ideal muscle model through the use of a large displacement magnetic actuating unit supported by means of linear springs. The muscular motion simulating system comprises a base plate mounted to a virtual muscle part in a dummy in the longitudinal direction thereof, a moving body connected to a wire withdrawn from the virtual muscle part such that the moving body can be slid on the base plate when the position of the wire is changed due to an external impact so as to output the moved distance of the moving body, a load cell connected to the lower part of the moving body for measuring a load depending upon the moved distance of the moving body, a fixing plate fixed to the lower end of the base plate while being protruded outwardly, a load-adjusting unit disposed between the load cell and the fixing plate for outputting positional information to increase or decrease the load applied to the load cell by means of a biasing force of the magnetic field, and a control unit for controlling the actuation of the load-adjusting unit such that load applied to the load cell corresponds to the muscle strength according to the moved distance of the moving body with reference to the positional information inputted from the load-adjusting unit.

A damper assembly for a suspension system of a vehicle includes a housing adapted to be mounted to one end of a strut in the suspension system. The housing has a chamber with fluid therein. The damper assembly also includes at least one diaphragm extending across the chamber to react with the fluid, to be compliant at relatively small displacements, and to be rigid at relatively large displacements.

An intercity electric multiple unit (EMU) power bogie relates to the technical field of EMU bogies. The intercity EMU power bogie comprises a frame, two wheel set and axle box assemblies, four primary suspension assemblies, a secondary suspension assembly, a traction assembly, two driving device assemblies, four basic braking device assemblies, and shaft-end equipment. The gear box of the power bogie is suspended in a C-shaped bracket structure, which has the advantages of small coupling displacement and higher installation reliability compared with the hanger rod structure of the previous gear box. The bogie and the train body are connected by a connection sleeper beam, the train body and the bogie can be separated quickly and conveniently in application and maintenance, and modular design of the bogie is realized. The primary suspension devices are each provided with a primary stop pin, and the primary stop pins can support the train body and achieve a safety protection effect when steel springs are broken. The wheel set and axle box assemblies are provided with anti-off plates which can prevent an axle box swivel arm from falling off when axle box swivel arm installing bolts are loosened.

A hydraulic drive system for a spreader used to distribute a road surface treatment material, such as sand or salt, across a road surface. The hydraulic drive system enables the use of pressure-compensated proportional control valves in series relationship with the auger and spinner motors, by the provision of small restricted flow passages across the outlets of the valves.

A lead conductor penetrating portion that bring out lead conductors to the inner diameter side is formed in a winding holding portion of a clamp ring for holding a rotor winding that overhangs from a rotor core, and furthermore a stopper is formed in a lead portion on the inner diameter side of the lead conductor, and a centrifugal force-resistant member for holding a centrifugal force acting on the lead conductor is interposed between the stopper and the inner diameter side of the winding holding portion.

Provided are a connection member capable of preventing leakage from a supply side to a permeating side from occurring by a simple means; and a separation membrane module using the connection member. The connection member (20) is used to connect in series a plurality of separation membrane elements equipped with end surface holding members (36) and to install the separation membrane elements in a pressure-resistant vessel (38). The connection member (20) is characterized in that, when the separation membrane elements are connected to each other, the connection member is engaged with respective grooves (36b) of the end surface holding members (36) adjacent to each other.

A spherical universal pipe joint made of synthetic resin can freely rotatably connect a sleeve and a plug, wherein, the universal pipe joint comprises a sleeve joint of the sleeve which one end has a partly spherical inner surface, and a plug joint of the plug which one end has a partly spherical outer surface consistent with the spherical inner surface of the sleeve. The spherical universal pipe joint consists of an annular inner side wall part disposed inside a joint connecting part to maintain that the inner side section of the joint connecting part surrounded by the sleeve and the plug is substantially same as that of a joint straight pipe part, and the annular inner side wall part can freely rotate together with the rotation of the sleeve and the plug. Accordingly, sewage is prevented from detaining and the pipe line can be made smooth even the direction of the joint is freely changed.

An optical fiber array includes an alignment substrate, a plurality of ferrules, and a plurality of optical fibers. The alignment substrate has a plurality of guide holes which are two-dimensionally arrayed and extend through the substrate. The ferrules are respectively inserted into the guide holes in the same direction and have through holes in the central portions. The optical fibers are fitted and held in the respective through holes. The guide hole is formed into a cylindrical shape having a diameter substantially equal to the outer diameter of the ferrule. The light incident / exit end face of the optical fiber is exposed on one end face of the ferrule.

A device and method for alignment of an optical fiber with an output facet of a laser diode that are to be co-located on a mount, to obtain a substantially optimum coupling efficiency. The device is particularly applicable to assemblies to be used in a submarine.

An axial piston micropump is disclosed, having a cylinder drum, in which several cylinders are provided a swash plate, with respect to which the cylinder drum is rotatable. It is desirable for such a micropump to have a small displacement combined with a long service life and in which the displacement or delivery volume can be achieved with great accuracy. For that purpose, at least two cylinders are provided, of which at least one is in the form of a working cylinder which has an associated working piston, while at least one other cylinder is in the form of a balance cylinder and has an associated balance piston.

An optical fiber array includes an alignment substrate, a plurality of ferrules, and a plurality of optical fibers. The alignment substrate has a plurality of guide holes which are two-dimensionally arrayed and extend through the substrate. The ferrules are respectively inserted into the guide holes in the same direction and have through holes in the central portions. The optical fibers are fitted and held in the respective through holes. The guide hole is formed into a cylindrical shape having a diameter substantially equal to the outer diameter of the ferrule. The light incident / exit end face of the optical fiber is exposed on one end face of the ferrule.

The invention discloses an opening and closing structure of a pull-down oven door. The opening and closing structure comprises a hinged plate fixedly connected with a microwave oven main body and a rotational structural part rotatablely and fixedly arranged on the hinged plate, the external end of the rotational structural part is hinged to the back side of the furnace door, the rear portion of the rotational structural part is connected with a spring, the rear end of the spring is connected to the hinged plate or the microwave oven main body through a fixed hole, and the fixed hole has a triangular structure, and the vertex corner of the fixed hole is arc-shaped. The fixed hole of the spring is designed to have an equilateral triangle structure with the vertex corner and the basic corners being arc-shaped, and the dimension of the triangular structure is greater than the diameter of the steel wire of the hook portion of the spring, so the assembling is convenient, and the insertion of the steel wire into the fixed hole is easy; and the vertex corner of the triangle is arranged to have an arc having a same diameter with the steel wire of the hook portion of the spring, so the hook can be positioned in the vertex corner in no displacement, stable fixing and small noise without considering the bearing of the spring.

The invention provides a high-sensitivity uniaxial MEMS (micro-electro-mechanical-system) gyroscope. The high-sensitivity uniaxial MEMS gyroscope comprises driving mass blocks, driving components andCoriolis force mass blocks, and a first direction, a second direction and a third direction which perpendicular to one another are limited; the driving mass blocks are arranged to move in the first direction; the driving components are connected with the driving mass blocks and the Coriolis force mass blocks through elastic structures respectively; the driving mass blocks drive the driving components to move when moving in the first direction, and further, the driving components drive the Coriolis force mass blocks to move in the second direction; and the driving components and the Coriolis force mass blocks are connected, so that the Coriolis force mass blocks are suitable for moving only in the third direction under the action of Coriolis force.

The invention relates to a multistep high-slope and wide-platform type bamboo reinforcement reinforced earth structure and a design and calculation method thereof, and the multistep high-slope and wide-platform type bamboo reinforcement reinforced earth structure and the design and calculation method thereof are particularly suitable for the field of civil engineering construction of vast mountainous cities. The multistep high-slope and wide-platform type bamboo reinforcement reinforced earth structure provided by the invention comprises a bamboo reinforcement reinforced earth structure body, bamboo reinforcement and lime soil, and the bamboo reinforcement and the lime soil are arranged in the bamboo reinforcement reinforced earth structure body. The invention further provides the design and calculation method of the multistep high-slope and wide-platform type bamboo reinforcement reinforced earth structure. The method includes the following steps that a, the number of steps, the platform width, the slope gradient, the height of each step and the linetype of the slope surface are determined; b, proportions of the lime soil are calculated and bamboo reinforcement reinforced belts are manufactured; c, the fracture surface of a bamboo reinforcement reinforced body is determined; d, the soil pressure and cohesion of bamboo reinforcement earth are calculated; and e, design and layout of the bamboo reinforcement reinforced belts are carried out. The multistep high-slope and wide-platform type bamboo reinforcement reinforced earth structure and the design and calculation method thereof have the advantages that local materials can be utilized, safety, reliability, economical efficiency and practicability are achieved, construction is convenient, the environment-friendly and ecological performance is achieved, and the economic benefit and social benefit are quite superior.

The present invention discloses a hot type picker which comprises a frame, a driving rod component and a picking arm component. The driving rod component is provided with a main rotating shaft which is vertically articulated with the frame. The upper end of the main rotating shaft is fixedly provided with a drive shaft which is vertical to the main rotating shaft. The lower end of the main rotating shaft is matched with a first drive which drives the main rotating shaft to rotate. The hot type picker also comprises a driven rod component which is provided with a first arm, a connecting arm and a second arm. The first arm and one end of the connecting arm are piled together and are respectively articulated with the frame independently. One end of the second arm is articulated with the tail end of the connecting arm. The tail ends of the second arm and the first arm are articulated with the picking arm component. The tail end of the drive shaft is articulated with a part of the second arm between the connecting arm and the picking arm component and is near the connecting arm. Therefore, the picking arm component of the hot type picker of the present invention has small movement displacement along the opening direction and the closing direction of a male die and a female die of a hot chamber die casting machine.

The invention relates to the technical field of space remote sensing, in particular to a rigid heat dissipation device for a medium-small-caliber space reflector. The device solves the problems of lowsystem rigidity and large deformation. The device comprises a bushing, a support cylinder and a back plate. A bonding cylindrical hole is formed in the back surface of the reflector body. The liningand the supporting cylinder are each of a cylindrical structure with an opening in one end. The outer cylindrical surface of the bushing is bonded with the bonding cylindrical hole. A threaded throughhole I is formed in the bottom surface of the bushing. An unthreaded hole I corresponding to the threaded through hole I is formed in the bottom surface of the supporting cylinder. The supporting cylinder is connected with the lining through the first threaded through hole and the first unthreaded hole, a flange is arranged on the cylinder wall of an opening of the supporting cylinder, a second threaded through hole is formed in the flange, a second unthreaded hole corresponding to the second threaded through hole is formed in the back plate, the back plate is connected with the supporting cylinder through the second threaded through hole and the second unthreaded hole, and an external connection installation part is arranged on the back plate. The purpose of reducing thermal deformationof the mirror body is achieved, the requirements for thermal stability and rigidity of the space reflector are considered, and it is guaranteed that the remote sensor has good imaging quality.

A hydraulic drive system for a spreader used to distribute a road surface treatment material, such as sand or salt, across a road surface. The hydraulic drive system enables the use of pressure-compensated proportional control valves in series relationship with the auger and spinner motors, by the provision of small restricted flow passages across the outlets of the valves.

The invention relates to a walking hydraulic system of a concrete pavement sympathetic vibration rock crushing plant. The walking hydraulic system comprises a volumetric speed control system. Oil output by a hydraulic pump directly enters an execution element, overflow losses and throttling losses are avoided, working pressure changes along with load changing, and therefore efficiency is high, and heating is low. The volumetric speed control system comprises a variable pump and a constant displacement motor connected with the variable pump through a pipeline. The constant displacement motor is used for driving the concrete pavement sympathetic vibration rock crushing plant to walk. A shuttle valve communicating with an oil tank is connected between two end openings of the constant displacement motor in parallel. The volumetric speed control system is a semi-closed system. The two-way variable pump is connected with an electric-hydraulic proportion control valve. The electric-hydraulic proportion control valve controls the flow and reversing of the two-way variable pump. The walking hydraulic system is reasonable in design, compact in structure and convenient to use.

The invention discloses a geotechnical test pressurizing device and an experimental method, belongs to the field of geotechnical test pressurizing devices and experimental methods, and aims to solve the problem that stress states and consolidation conditions of soil layers with different depths are difficult to simulate in a geotechnical model test. According to the technical schemes, the device is characterized by comprising a support which is of an annular cylindrical structure; inflatable confining pressure loading devices used for applying confining pressure are placed on the support at certain intervals in the vertical direction; a valve core is arranged at the upper part of each inflatable confining pressure loading device; and a tightening type inflating valve is arranged on each valve core. The device further comprises a load assembly, and the load assembly comprises a downward pressing device and a load component used for fixing the downward pressing device. According to the geotechnical test pressurizing device and the experimental method, static force loading or displacement and force cyclic loading of different waveforms is realized by utilizing the downward pressing device, and lateral confining pressure is provided by means of air bags so as to adapt to simulation tests of different models and different working conditions.

The invention belongs to the technical field of drilling tools, and particularly relates to a large-water-hole light workover drill rod. The large-water-hole light workover drill rod aims to solve the problem that in the prior art, the mechanical strength of a drill rod is insufficient. The large-water-hole light workover drill rod comprises a drill rod body, a first drill rod connector and a second drill rod connector, wherein the first drill rod connector and the second drill rod connector are arranged at the two ends of the drill rod body respectively; the outer diameter of the drill rod body is set to be 100mm-103mm, and the outer diameter of the first drill rod connector and the outer diameter of the second drill rod connector are set to be 130mm-143 mm; and the inner diameter of the drill rod body is set to be 81mm-86mm, and the inner diameter of the first drill rod connector and the inner diameter of the second drill rod connector are set to be 81mm-85mm. The large-water-hole light workover drill rod is high in mechanical strength, can meet the workover operation requirements of deep wells and ultra-deep wells, and provides guarantees for drilling safety, speed increasing and efficiency improving.