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688results about How to "Easy fine-tuning" patented technology

Universal joint-driven inclined wide-and-narrow separating-planting mechanism of rice transplanter

The invention discloses a universal joint-driven inclined wide-and-narrow separating-planting mechanism of a rice transplanter. Transmission cases of the same structure and planting arms of the same structure are arranged on the two sides of a chain wheel shaft respectively; the chain wheel shaft forms an inclination angle with an output shaft of a universal joint through the universal joint; the output shaft end of the universal joint is fixedly connected with a planet carrier; in the planet carrier, central gears are supported on the output shaft of the universal joint through bearings, are fixedly connected through flanges, adjustment gaskets and the flange on a transmission case body at the universal joint end and are connected with planet gears per se through idler wheels respectively; and planet gear shafts fixedly connected with the planet gears are connected with the planting arms per se respectively. In the universal joint-driven inclined wide-and-narrow separating-planting mechanism, seedling needles on the planting arms driven by the planet gears move in a plane inclined relative to the chain wheel shaft, the inclination of the planet carrier produces lateral movement relative to an advancing direction to move seedling inserting points leftwards or rightwards relative to seedling taking positions after the seedling needles take seedlings, and then rice transplantation positions are distributed in narrow and wide rows at unequal row spaces meeting agronomic requirements on the premise that seedling taking openings are distributed at equal intervals.
Owner:ZHEJIANG SCI-TECH UNIV +1

Integrated laser probe component analyzer for macroscopic and micro-area component analysis

The invention belongs to the technical field of laser precision detection and discloses an integrated laser probe component analyzer for macroscopic and micro-area component analysis. The integrated laser probe component analyzer comprises a laser, a frequency multiplication module, two cage-type cubes, two laser wavelength reflectors, an industrial camera, a spectrum collector, an object lens converter, a focusing object lens, a spectrometer and a computer. A front end of a light outlet of the laser is provided with the frequency multiplication module. The laser is in an electric signal communication relationship with the computer. The integrated laser probe component analyzer can realize accurate qualitative analysis and high-precision quantitative analysis of macroscopic and micro-area components, can realize fast seamless switching of macroscopic and micro-area component analysis, has a modularization design and a compact structure, and improves an equipment integrated level. All the modules have independent functions and can be operated and maintained easily. Through the optical path modularization design, users can conveniently carry out optical path calibration before use so that operation time is saved and an analysis precision is improved.
Owner:WUHAN XINRUIDA LASER ENG +1

V-block tool allowing height adjustment for workpieces

The invention discloses a V-block tool allowing height adjustment for workpieces. The V-block tool comprises a left support block, a right support block, a guide seat plate and a threaded rod. Two threaded sleeves are fixed in a mounting hole arranged in the left support block and a mounting hole arranged in the right support block, respectively; the left of the threaded rod is provided with a left thread; the right of the threaded rod is provided with a right thread; the left thread and the right thread spiral in different directions; the threaded rod penetrates the threaded sleeve arranged in the left support block and the threaded sleeve arranged in the right support block; the threaded rod is axially fixed on the guide seat plate; the left support block is provided with a left slope; the right support block is provided with a right slope; the left slope of the left support block and the right slope of the right support block jointly compose a V-shaped support face; the guide seat plate is provided with guide slides; the left support block and the right support block are slidably disposed on the guide seat plate. The V-block tool is convenient to operate, labor intensity is reduced for workers, production cost is reduced, labor productivity is improved, safety of use is improved, and machining quality is improved.
Owner:SUZHOU DOUSON VALVE CO LTD

Arching structure of high large-span bridge bailey beams and construction method thereof

The invention provides an arching structure of high large-span bridge bailey beams and a construction method thereof. A fixed bracket is erected between piers on two sides through a plurality of supporting vertical columns and beams; an inclined plane is formed at top ends of every two supporting vertical columns; a plurality of inclined planes form a basic cambered surface; a standard bailey beam is erected on each inclined plane; the standard bailey beams are further connected with one another; an arc bracket is further erected on each inclined plane; casting templates are further erected on the arc brackets, so that the arching structure is formed; the preset height difference is formed through the supporting vertical columns; after the erecting of the supporting vertical columns, the arc requirement is initially achieved; the bailey beams are assembled into a plurality of inclined planes which are connected with one another; the bailey beams are erected on the inclined planes; one arc bracket is further arranged on each inclined plane. The method has the advantages of low construction difficulty, simple construction technology, convenience in operation, high safety factor and the like, and can be widely applied to construction of large span bridges, such as arch bridges and arch rings, with radian at bottoms.
Owner:NO 2 ENG CO LTD OF CHINA RAILWAY CONSTR 11 BUREAU GRP

Automatic coupling package method of butterfly-shaped semiconductor laser

The invention discloses an automatic coupling package method of a butterfly-shaped semiconductor laser, and relates to the field of automatic coupling package of electronic devices. The automatic coupling package method comprises the steps of feeding-onto-machine of accessories, coupling alignment, welding and the like. An automatic coupling package device realizing the automatic coupling packagemethod comprises vertical columns, a transverse beam, an optical fiber clamp, a lens clamp mechanism, a lower clamp device, a material disc mechanism, a laser power meter and the like, wherein the optical fiber clamp, the lens clamp mechanism, the lower clamp device, the material disc mechanism and the laser power meter are arranged on a base; and the positions of the optical fiber clamp, the lensclamp mechanism and an optical fiber automatic angle-adjusting welding device can be adjusted so as to realize accurate coupling package of the butterfly-shaped semiconductor laser. The automatic coupling package method is high in automation degree and high in package efficiency; the coupling package device adopted by the automatic coupling package method is reasonable in structural design, the complete subsequent procedures from coupling alignment to package can be automatically completed, and compared with a traditional manual production line, the automatic coupling package device has the advantages of being easy and convenient to operate, low in production cost, stable in product quality and the like.
Owner:CENT SOUTH UNIV

Piloted valve, particularly proportional throttle valve

The invention relates to a piloted valve, particularly a piloted proportional throttle valve, having a valve piston (29) displaceably guided in the longitudinal direction in a valve housing (13) having a fluid inlet (2) and outlet (1), the front side (27) whereof can be pressurized against a main valve seat (25) by fluid pressure acting on the back side thereof, having a pilot valve device comprising an actuating member (7) displaceable in the longitudinal direction by means of an electrically actuatable magnet system (4), working together with a pilot valve seat (37) in a bore (17) of the valve piston (29) connecting the back side thereof to the fluid outlet (1) on the front side of the piston, in order to reduce the fluid pressure on the back side of the piston (29) for an opening motion when the pilot valve seat (33) is released, a flow baffle device (39) being disposed between the back side of the piston and the fluid inlet (2) of the housing (13) for building up the fluid pressure pressurizing the piston (29) against the closed position thereof by introducing pilot fluid, characterized in that the flow baffle device (39) comprises a device for performing filtration, preferably gap filtration, of the pilot fluid.
Owner:HYDAC FLUITECHNIK GMBH

Touch screen equipment and control method of media playing progress thereof

The invention provides touch screen equipment and a control method of a media playing progress thereof. The touch screen equipment divides the playing progress of a media file into a plurality of time periods and enables the time periods to be displayed on the touch screen equipment in the mode of a horizontal time shaft; a cursor is displayed in an amplified mode when the cursor on the horizontal time shaft is clicked; when the cursor amplified during displaying is moved upwards or downwards on the horizontal time shaft, a fine adjustment time scale is amplified on the horizontal time shaft so that micro adjustment of the play progress can be carried out through the cursor. According to the touch screen equipment and the control method of the media playing progress thereof, the cursor for representing the playing progress can be amplified during displaying, when the progress of the media file is adjusted on the horizontal time shaft, the cursor displayed in an amplified mode is dragged upwards or downwards on the horizontal time shaft, and meanwhile, the micro adjustment time scale at a current time point of the cursor is displayed on the horizontal time shaft in a superposed mode, so that when the user adjusts the playing progress of the media file, the time scale of the current time period of the cursor can be displayed in an amplified mode, and the user can conveniently fine adjust the playing progress.
Owner:TCL CORPORATION

Reconfigurable man-machine coordination assembling system for aero-engine

The invention discloses a reconfigurable man-machine coordination assembling system for an aero-engine. The system comprises a base, a lifting mechanism, a turnover mechanism, an angular fine-adjustment mechanism, a clamping mechanism, a feeding and assembling mechanism and a detecting mechanism, wherein the lifting mechanism drives the turnover mechanism to move up and down vertically; a feeding station and an assembling station are disposed on the feeding and assembling mechanism; the feeding station and the assembling station move horizontally in an X direction together; the assembling station can move horizontally in a Y direction and rotate around a C axis; to-be-assembled parts are put on the feeding station and the assembling station separately; the turnover mechanism drives the clamping mechanism to rotate around a B axis; the angular fine-adjustment mechanism is mounted between the clamping mechanism and the turnover mechanism so as to achieve fine-adjustment of the rotating amount of the clamping mechanism around an A axis; and the detecting mechanism finishes measurement of the plane gaps among the parts and the angle deflection amount, and deviation amount adjustment is finished through the feeding and assembling mechanism, the turnover mechanism and the angular fine-adjustment mechanism. By means of the reconfigurable man-machine coordination assembling system for the aero-engine, the on-site operation difficulty can be effectively lowered for workers, and the production rate is improved while the safety is ensured.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
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