1002results about How to "Small driving force" patented technology

The invention relates to a hydraulic bidirectional pumping device which comprises a prime motor, a hydraulic oil pump, a hydraulic oil tank, a control valve, a double-action hydraulic cylinder and plunger pumps. The prime motor drives the hydraulic oil pump. The hydraulic bidirectional pumping device utilizes the double-action hydraulic cylinder to drive the plunger pumps on both sides; the cylinder number is increased; stroke times are reduced; the service lives of easily damaged parts are prolonged; the coverage range of flow is effectively enlarged; suction efficiency of fracturing fluid is effectively improved; complexity of the integral structure is reduced; cost of manufacturing, maintenance and the like is reduced; the requirements on a lubricating system are lowered; the double-action hydraulic cylinder reciprocates to do work, so that working efficiency is improved.

The present invention discloses a composition method of a gantry four-dimensional automatic measurement platform for detecting photochromic performance of display screens and a gantry four-dimensional automatic measurement platform using the method. The present invention relates to the automatic measuring technology of the photochromic performance of display screens, and comprises a platform base, a gantry frame, an X-axis moving mechanism, a Y-axis moving mechanism, a Z-axis lifting mechanism, and a display screen-carrying rotating platform. By moving the mechanisms to control the circuit, the four-dimensional automatic measurement platform for detecting photochromic performance of display screens is flexibly controlled to accomplish the three-dimensional move of the photochromic measuring instrument and the accurate one-dimensional rotation of the display screen to be measured, the present invention is characterized in stable movement of the photochromic measuring instrument, small rotation radium of the display screen, novel structure, small driving power needed, small size, light weight, low cost, rapid measuring speed, high reliability and so on. The present invention can be widely applied to the photochromic automatic detecting system of LCD or LED television screen, display screen, or mobile phone screen and so on, and the present invention can precisely adjust the coordinate position of the test points and the angle of the display screen intelligently according to the detecting requirement of photochromic performance of the display screens under the computer management, and rapidly accomplish the detection of photochromic performance.

An input device is presented. The input devices contains a chassis having an opening. A detecting unit has a surface panel exposed through the opening and detects a pressing operation when the surface panel is pressed. An exciting unit vibrates the surface pane. A driving unit generates driving signals driving the exciting unit at predetermined frequencies. A control unit supplies starting signals starting the driving unit on the basis of an output from the detecting unit. The detecting unit is supported by two supporting portions provided at edge portions of the opening and has a free-end portion at the outside of one of the supporting portions and the exciting unit provided at the free-end portion.

The invention relates to an air-floating type flexible assembly butt-joint system, which relates to the technical field of flexible assembly, and aims at solving problems of low assembling precision, inferior efficiency and inferior flexibility of traditional large-scale cabin section type products. The air-floating type flexible assembly butt-joint system comprises a driving assembly butt-joint vehicle, a driven assembly butt-joint vehicle and a rail, wherein the driving assembly butt-joint vehicle and the driven assembly butt-joint vehicle slide along the same rail; the driven assembly butt-joint vehicle is used for lifting a driven butt-joint cabin section; the driving assembly butt-joint vehicle is used for lifting a driving butt-joint cabin section and controlling the driving butt-joint cabin section to move for butt joint along the extending direction of the rail, move along the direction vertical to the extending direction of the rail, vertically move along the longitudinal direction, rotate in a yawing form, rotate in a pitching form and rotate in a rolling form, so that the butt joint between the driving butt-joint cabin section and the driven butt-joint cabin section lifted on the driven assembly butt-joint vehicle is realized; the driving assembly butt-joint vehicle is used for lifting the driving butt-joint cabin section in an air-floating form. The air-floating type flexible assembly butt joint system is mainly used for fine butt-jointing of large-scale cabin section type products.

The invention discloses a permanent magnet speed controller, which comprises a cylindrical conductor rotor, a cylindrical permanent magnet rotor and a controller, and is characterized in that: the cylindrical permanent magnet rotor is arranged in the cylindrical conductor rotor; the cylindrical permanent magnet rotor and the cylindrical conductor rotor are separated by an air gap therebetween, and rotate independently along respective rotating shafts; and the controller controls relative positions of the cylindrical conductor rotor and the cylindrical permanent magnet rotor so as to change the action area between the cylindrical permanent magnet rotor and the cylindrical conductor rotor and change the transmission torque between the cylindrical permanent magnet rotor and the cylindrical conductor rotor. Permanent magnets of the permanent magnet speed controller are arranged on an outer ring of the cylindrical permanent magnet rotor, and output power and torque higher than those of a common permanent magnet speed controller can be obtained; the moving direction of the cylindrical permanent magnet rotor on the shaft thereof is vertical to that of the magnetic force of the permanent magnets, and the controller for controlling the movement of the cylindrical permanent magnet rotor only needs small driving force; and axial additional loads are not generated nearly in the adjustment, and the permanent magnet speed controller can be well applied to transmission systems with large axial running number.

The invention discloses a periscope camera module. The periscope camera module comprises a light steering mechanism, a lens mechanism and a photosensitive chip, wherein the light steering mechanism ismounted at a light incident side of the lens mechanism, the photosensitive chip is mounted at a light exit side of the lens mechanism, the light steering mechanism comprises a prism, a prism holder,a support shaft and a base, the prism holder is arranged in the base, the prism holder has a support surface opposite to the prism, the prism holder is further provided with a shaft seat, the shaft seat is arranged at the other side of the support surface opposite to the prism, the shaft seat is provided with a through shaft hole, the support shaft is rotatably arranged in the shaft hole, the support shaft is perpendicular to an optical axis of an optical lens in the lens mechanism, the support surface has two side walls, and the intersection portion of the support surface and the side walls is provided with a support table which projects in the direction away from the support surface and extends along an intersection line of the support surface and the side walls. The periscope camera module is advantaged in that the prism holder and the support shaft are adopted, the anti-shake effect can be achieved through the rotatable prism, the structure is simpler, and manufacturing and maintenance are easy.

The invention provides a skin of a morphing wing, which is made from fiber-reinforced composite material (1). The skin is characterized in that: a shape memory alloy driver (2) is arranged between the two layers of the fiber-reinforced composite material (1); the wave trough of the upper layer fiber-reinforced composite material is internally filled with silica-based rubber (3) for meeting the requirements of smoothness, continuity and whole gas tightness on the surface of the wing; the fiber-reinforced composite material (1) and the shape memory alloy driver (2) are jointly pressed into to a corrugated structure under room temperature; the shape memory alloy driver (2) is in the shape of a high-temperature memory straight line; and the silica-based rubber (3) can be solidified under normal temperature. The invention also provides a drive method of the skin of the morphing wing. The skin of the morphing wing has the corrugated structure, thereby having high flexibility, large morphing amount and fast morphing response speed on the morphing direction, having high carrying capability on the perpendicular morphing direction, and having simple structure, light weight and reliable performance.

In an image pickup apparatus for automatically chasing a moving object, an image pickup optical lens system and an image pickup device are contained in a ball shaped unit. A convex spherical surface of the unit is spherically pivoted by a concave spherical surface of an inner space of a housing via ball bearings. A driving mechanism, which alternatively includes two sets of one dimensional piezoelectric actuator and friction member or one set of two-dimensional piezoelectric actuator and a friction member, moves the friction member(s) for trailing an elliptical orbits in two ways. The unit is revolved around an optional axis passing the center of a sphere constituting the convex spherical surface.

A reciprocating axis of the ejector is born in a non-sliding state by permanent magnets on the reciprocating axis and permanent magnets surrounding the reciprocating axis. The reciprocating axis linearly projects out and retracts by the reciprocating components which cause the reciprocating axis to reciprocate by the driving signals from the driver circuit. A slanted surface is provided at the foremost end of the reciprocating axis. When the granular objects to be ejected flow-in continuously, the projecting-out action takes place correspondingly with the leading granular object to be ejected and, after the following granular object(s) to be ejected has been ejected, the retracting action takes place.

The present invention relates to a gas-storage power plant, comprising a gas reservoir (8) in which a gas can be stored under pressure, a turbogroup (2) which has at least one turbine (3, 5), a gas-supply line (9) which leads from the gas reservoir (8) to the turbogroup (2), and a valve arrangement (12) which is arranged in the gas-supply line (9) and throttles a storage pressure (PS) applied on the inlet side to a working pressure (PA) by closed-loop and/or open-loop control. In order to improve the reliability of the valve arrangement (12), it has at least two control valves (13, 14) arranged in series. A leading first control valve (13) throttles the storage pressure (PS) applied on the inlet side to an intermediate pressure (PZ) by closed-loop or open-loop control. A subsequent second control valve (14) throttles the pressure (PZ) applied on the inlet side to the working pressure (PA) by closed-loop control.

A propeller unit for a marine vessel propulsion device includes an inner cylinder arranged to be fixed to the propeller shaft, an outer cylinder, a first driving force transmitting member, and a second driving force transmitting member. The propeller unit for marine vessel propulsion device further includes a pair of first engaging portions, and a pair of second engaging portions provided on the outer cylinder and the second driving force transmitting member. The pair of second engaging portions are arranged such that the mutual engaging of the respective second engaging portions is disengaged when a driving force is not transmitted to the propeller shaft and are arranged such that the respective second engaging portions become mutually engaged in a driving force transmittable manner by elastic deformation of the first driving force transmitting member when a driving force that is not less than a reference driving force is transmitted to the propeller shaft.

The present invention provides an upsetting method capable of unevenly expanding the diameter of a portion to be expanded in the circumferential direction of a blank. A guide body (20) having an insertion hole (21) through which the planned diameter expansion portion (2) of the holding blank (1) is inserted in a vertical bending preventing state is prepared. A protruding piece portion (22) for suppressing diameter expansion that protrudes in the axial direction of the guide body (20) is integrally provided on a part of the front end portion (20a) of the guide body (20). The predetermined diameter expansion portion (2) of the blank (1) fixed in the stationary mold (10) is inserted and held in the insertion hole (21) of the guide body (20). Next, while moving the punch (30) and pressing the portion (2) of the blank (1) to be enlarged by the punch (30) in the axial direction, the guide body (20) is directed toward the punch (30) is moved in the opposite direction of the moving direction, whereby the planned diameter expansion portion (2) of the blank (1) exposed between the front end portion (20a) of the guide body (20) and the fixed mold (10), The diameter expansion is performed in a state where the diameter expansion is suppressed for the contact portion of the planned diameter expansion portion (2) with the protruding piece portion (22).

The invention discloses a steel wire rope twist direction climbing robot. The steel wire rope twist direction climbing robot includes a plurality of modules, wherein climbing devices are arranged in outer shells of the modules, the climbing devices include tensioning supports, rolling wheels are mounted in tensioning supports, rubber sheets are arranged on the circumferences of the outer edges ofthe rolling wheels, shafts are arranged on the back sides of the tensioning supports, holes are formed in the outer shells close to the shafts, linear bearings are mounted at the positions of the holes, the shafts of the tensioning supports penetrate through the linear bearings and the holes, limiting anti-loose nuts are mounted on shafts outside the outer shells, and springs are further arrangedbetween the back sides of the tensioning supports and the inner walls of the outer shells. Compared with the prior art, the steel wire rope twist direction climbing robot can roll in the direction ofa spiral line twisted in a steel wire rope, the needed driving force is smaller and stable, and the bearing capacity is high; and the climbing robot can work under a special environment and can meet the requirement of anti-explosion; and the shafts of the tensioning supports move telescopically relative to the linear bearings, and the certain buffering obstacle crossing ability and the disturbanceresistant capacity are achieved.

A three-axis gimbal includes: a first housing including a first rotary shaft, the first rotary shaft configured to rotate the first housing in a first direction; a first bracket attached to, and extending from the first housing; a second bracket including second rotary shafts, the second rotary shafts rotatably supported by the first bracket, the second bracket configured to be rotatable in a second direction; a camera module including a third rotary shaft, the third rotary shaft rotatably supported on the second bracket, the camera module configured to be rotatable in a third direction; and a second housing accommodating the second rotary shafts and the third rotary shaft.

The invention provides an air-floating-type flexible pulling butt joint assembling platform, relates to the technical field of flexible assembling and aims at solving the problems that an existing butt joint assembling platform is poor in flexibility adaptability, complex in mechanism and poor in butt joint flexible degree. The air-floating-type flexible pulling butt joint assembling platform comprises a front butt joint pulling bracket, a rear butt joint pulling bracket, a flexible pulling mechanism and an air floating platform, wherein the front butt joint pulling bracket and the rear butt joint pulling bracket are arranged on the upper end face of the air floating platform along the length direction, one end of the flexible pulling mechanism is arranged on the upper end face of the air floating platform, the other end of the flexible pulling mechanism is arranged on the rear butt joint pulling bracket, the front butt joint pulling bracket realizes adjustment on a pitch angle of a first butt joint component, the rear butt joint pulling bracket realizes adjustment on a rolling angle and height of a second butt joint component, and the flexible pulling mechanism realizes pulling butt joint between the first butt joint component and the second butt joint component. The air-floating-type flexible pulling butt joint assembling platform is used for flexible butt joint assembling of a product.

The invention relates to a low driving rotor with a turbulence core and in a heat exchange tube. The rotor is mainly composed of a hollow shaft, helical blades and the turbulence core, the outer diameter of each helical blade is smaller than the inner diameter of the heat exchange tube, the helical blades are smooth in surface, provided with hollow structures respectively and helically shaped around the hollow shaft, and the turbulence core is arranged in the hollow portions of the helical blades and consists of a plurality of turbulence strips distributed around the hollow shaft. The edge, firstly contacting with water flow, of the helical blades is chamfered or filleted; upstream faces of the blades drive the rotor to rotate under the action of fluid driving, fluid is enabled to generate centrifugal movement and is thrown to the wall of the heat exchange tube, radial flow of the heat transfer fluid is enhanced, and impacts on a laminar boundary layer of the fluid nearby the tube wall are generated to destroy the laminar boundary layer of the fluid; the turbulence core rotates with the blades, when small resistance is increased, turbulence is performed on center fluid in the tube to enable the center fluid to be replaced fully, and further effects of scale prevention, descaling and strengthened heat transfer are realized.

A drive arrangement for a motor vehicle door or hatch which can be moved by a motor with a planet gear and a brake device with a brake. The brake device has a brake drive which is separate from the drive which drives the drive shaft and the brake is able to be moved at least from one of two positions into the other of the two positions by the brake drive. The brake can be an arc-shaped clip pivotally supported by a pivot axle with an inner periphery which is matched to an outer periphery of an element of the planet gear. The brake can be combined with the brake drive as an eddy current brake or can be operated by a further gearing or use of a permanent magnet with which an electromagnet is able to interact.

A coating machine having a coating material discharging mechanism for discharging a previously filled coating material under pressure to an atomizing mechanism wherein a coating material bag for filling a coating material is housed in a coating material discharging chamber of a predetermined volume and an inlet/exit port of an operating fluid is disposed for exerting a pressure from the outside of the coating material bag thereby discharging the coating material under pressure, while crushing the coating material gag, whereby paint or like other coating material can be discharged under pressure reliably by a small driving force.

Rotary metering valve (200) with a valve inlet (260), a valve outlet (270) and a rotary valve member (280) for transferring a metered dose of aerosol formulation from the inlet to the outlet, wherein the rotary valve member is provided with an inlet port (290) and an outlet port (300), both in communication with a metering conduit (310) in the rotary valve member, the rotary valve member in sequence being rotatable between at least three positions:

• • inlet position where the inlet port is in communication with the valve inlet and aerosol formulation enters the metering conduit,
  • metering position where both ports are closed preserving a metered volume of aerosol formulation in the metering conduit,
  • outlet position where the outlet port is in communication with the valve outlet and the metered dose of aerosol formulation is dispensed from the valve.