215results about How to "Novel and compact structure" patented technology

The single needle water cooling type RF ablation electrode has support frame inside handle matching and inserting into the water storing frame, middle cavity to form cooling water return pool, electrode needle with insulating material coated and scaled front section, bare tip and back section inserted inside the handle and connected to RF wire, built-in water guiding steel pipe, and temperature metering thermocouple inserted into the electrode needle in the coaxial position. The water inlet hose is connected to the built-in water guide steel pipe, water outlet hose connected to the cooling water return pool, and the RF wire and the thermocouple constitute the connecting cable connected to the system unit of the RF ablation system for signal transmission. The cooling water circulates in the system. The present invention has novel structure, great and controllable ablation range and high safety and reliability.

The invention discloses a fully digital servo driver for an AC (alternating current) permanent magnet synchronous motor for a wind power generation pitch. The fully digital servo driver comprises a DSP (digital signal processor) module, an uncontrolled rectifier module, a power switch module, an analog input module, a digital input module, a digital output module, a CANOPEN (control area network open) communication module, a driver module and an encoder signal acquisition module. The digital input and the analog input can be monitored, so as to determine the failure of the driver, the control can be performed according to a normal feedback mode in the case of no failure, and an alarm is given and the driver is shut down in the case of failure. The functions of the different modules of the servo driver can be achieved by different printed circuit boards respectively, the interboard structure is compact, and the control method is simple and accurate.

The invention discloses a method for milling rice in an embryos retaining manner. A domestic machine for milling rice in an embryos retaining manner is used for milling the rice and comprises a grain hopper, a power transmission system, a polishing system, a machine shell and a system for screening milled rice with embryos, wherein the grain hopper, the power transmission system, the polishing system and the system for screening the milled rice with the embryos are mounted in the machine shell; a feeding opening of the grain hopper is formed in the machine shell; an outlet of the grain hopper is connected with the polishing system; the polishing system is connected with the system for screening the milled rice with the embryos; and the power transmission system provides required power for the polishing system. Finished rice is bright and clean, embryo retaining rate is high, rice husks, rice polishings, the milled rice with embryos and broken rice can be screened automatically, so that the milled rice with embryos do not contain the rice husks, the rice polishings or the broken rice, moreover, in a rice milling process, the temperature is stable, and the energy consumption is small.

The invention provides a radio-frequency ablation electrode with uniform surface temperature, which comprises a radio-frequency needle, a control collector, a gas container, an exhaust cavity and a gas receiving vessel, wherein the surface of the radio-frequency needle is coated with an insulating layer, and a needle point is exposed; the radio-frequency needle is hollow, and a gas conveying pipe, a temperature sensor and a radio-frequency wire are arranged inside the radio-frequency needle; both ends of the temperature sensor and the radio-frequency wire are connected with the tip of the radio-frequency needle and the control collector respectively; the gas conveying pipe is connected with the gas container; and gas is filled into the gas container which has certain initial pressure. By adoption of the arrangement, uniform surface temperature of the needle point can be realized by utilization of heat exchange between the gas and the needle point, so as to prevent carbonization, thereby the radio-frequency ablation electrode can be widely applied to pathological tissues.

The invention relates to a lignite-drying and quality-improving process for preparing superheated steam from waste heat steam. The process comprises the following operation steps of: firstly, providing a heat source for a heat energy device for preparing the superheated steam from the waste heat steam by using high-temperature flue gas produced by a hot-blast stove; secondly, recycling, purifying and refining waste heat steam produced by a normally-running energy-saving cylindrical lignite-drying and quality-improving device; thirdly, preparing high-temperature superheated steam by using the heat energy device for preparing the superheated steam from the waste heat steam; fourthly, drying wet-based lignite and improving quality by using the energy-saving cylindrical lignite-drying and quality-improving device; and finally, recycling the waste heat steam produced in a drying process by the recycling, purifying and refining steps. The process uses the waste heat steam to dry the lignite and has the characteristics of reasonable design and simple, convenient and smooth route. The device has the characteristics of optimized design, compact structure, small floor area, a small amount of investment, low running cost, high yield, large dehydrating range, safe running, energy conservation, capability of saving power, lowering consumption and reducing emission, wide application range of quality-improved lignite and the like.

The invention provides a tunable optical filter driven by a static comb-shaped electrode based on an SOI optical waveguide and an F-P cavity, as well as a manufacturing method thereof. The comb-shapedelectrode drives two symmetric DBRs to move so as to realize a tunable optical filtering function by adjusting the equivalent cavity length of the F-P cavity. The tunable optical filter with the structure has the advantages of wide tuning range, high tuning precision, high tuning speed, novel and compact structure, convenient integration with other optical and electrical elements. The symmetricaltuning method with two DBRs which move simultaneously is adopted to expand wavelength tuning range. The BDR and the F-P cavity are manufactured by taking good use of crystallographic characteristicsof a (110) silicon slice and integrating an inductive coupling plasma etching process and an anisotropy wet corrosion process, wherein the surfaces of the BDR and the F-P cavity are [111] surfaces ofsilicon crystal so as to enable the DBRs to have vertical mirror faces and smooth surfaces, thereby increasing the reflectivity of the DBRs and improving performance of the filter.

A RF electrode for treating atrial fibrillation is composed of a silica rubber tube, a plastic rod in said silica rubber tube, a plastic handle, PCB fixed to the handle, a RF head and 7 RF tubes on said silica rubber tube at intervals, RF connectors between two adjacent RF tubes, and two temp-measuring thermocouples.

The invention discloses a stair climbing cart with automatic switching of wheels and crawlers. The stair climbing cart comprises a rack, two sets of traveling systems and a traveling-system switching device, wherein one set of traveling system is crawler traveling systems, and the other set of traveling system is a driving-wheel traveling system; the traveling modes of the two sets of traveling systems are switched by the traveling-system switching device; the two sides of the rack are provided with the crawler traveling systems; each crawler traveling system comprises a crawler, a crawler driving wheel, a plurality of driven wheels, a swinging wheel, a crawler driving system and a swinging-wheel retracting and extending mechanism; the driving-wheel traveling system comprises an inner rack, a universal wheel, a driving wheel, a universal-wheel retracting and extending mechanism and a driving-wheel driving system; the rack is internally provided with the inner rack and is connected with the traveling-system switching device by the traveling-system switching device; the inner rack can realize switching of the traveling modes under the action of the traveling-system switching device. The stair climbing cart disclosed by the invention has the advantages that the chassis switching is carried out by adopting the two sets of traveling systems and a wheel-crawler switching mechanism; the structure is compact, the switching is convenient, and the functions of climbing stairs, traveling on flat ground and crossing obstacles and ditches are achieved.

The invention relates to a high-intensity focused ultrasound spherical phased array with array elements annually and intensively distributed, comprising a rigid spherical crown body and a plurality of array elements, wherein one array element is independently arranged in the center of the spherical crown body, and the other array elements are evenly and dispersedly distributed on a plurality of layers of concentric rings which take the center of the spherical crown body as an original point; the angular spacings among all ring layers are not equal, and the spacings among all ring layers and the spacing between adjacent array elements in the same ring are set according to an array element intensive distribution principle; the position of the original array element of each layer of concentric rings is randomly set, the other array elements are subsequently, intensively and evenly distributed on the concentric rings according to equiangular spacing, and each array element has independent electric excitation signal feeder lines which are respectively connected to a phased signal excitation system. The invention calculates the phase position and the voltage amplitude distribution of the array elements by adopting a focus model synthesis method based on a pseudo-inverse matrix theory, realizes acoustic beam electron focusing and scanning, generates required single-focus or multi-focus sound field control modes, and the like and is applied to heating and fusing target tumor focuses in the human body.

The present invention discloses a peeling mechanism for irregular sugarcanes. The peeling mechanism comprises a machine frame, stand columns, a bottom plate and a top plate. The bottom plate is arranged on the machine frame, a plurality of the stand columns are arranged on the machine frame, the top plate is arranged on the stand columns, peeling units are arranged between the bottom plate and top plate, and the peeling units are symmetrically arranged between the bottom plate and top plate. The peeling mechanism for the irregular sugarcanes is novel in structure, high in peeling efficiency, easy for realization, and suitable for large-area production, promotion and use.

A ball-spline driven 3-freedom robot with the serial connection and parallel connection combined structure is disclosed. The spline driving axle passing through moving platform longitudinally, the leading screw bolt whose top end is connected with AC servo motor, and the guide track whose both ends fixed to base are arranged between two bases. The raster is arranged on said moving platform.

The invention relates to a screening machine with a dislocation drawing-and-pulling type composite sieve. The screening machine comprises a machine shell and a rack. The machine shell is arranged on the rack, a feeding opening is formed in the upper portion of the machine shell, and a first discharging opening is formed in the bottom of the machine shell. The machine shell is internally provided with the dislocation drawing-and-pulling type composite sieve. According to the screening machine with the dislocation drawing-and-pulling type composite sieve, river sand is effectively subjected to coarse and fine separation sieving through the dislocation drawing-and-pulling type composite sieve, and the dislocation drawing-and-pulling type composite sieve cooperates with a push-broom unit, separation sieving efficiency is high, labor intensity is small, the time and labor are saved, the structure is novel, and the screening machine is suitable for large-area production, use and popularization.

The invention relates to a parallel mechanism to implement tri-translation and mono-rotation, consisting of a slider (8) and an end effector (7), and three groups of planar linkage mechanisms connecting said two, where the three groups include a five bar slider mechanism, a slider-crank mechanism and a plane four bar mechanism. The plane four bar mechanism consists of a driving element (5) and a driven element (6, 20). The end effector (7) has a rotary shaft connected to a connecting bar (2), while the driven element (20) of the plane four bar mechanism is connected with the end effector. The five bar slider mechanism and the slider-crank mechanism share a slider (4) and a drive motor (12), while the slider (4) is served as a driving element of the five bar slider mechanism. The slider-crank mechanism and the five bar slider mechanism form a planar combination mechanism to implement two degrees of freedom (DOF) motion required by the end effector by use of a drive motor (12). The plane four bar mechanism formed by a driving element (5) and a driven element (6, 20) can implement a function of rotation for the end effector. Furthermore, the slider (8) can implement straight reciprocating motion by means of a ball screw (10). Therefore, the mechanism can implement four DOF motion with tri-translation and mono-rotation, and implement four DOF motion of tri-translation and mono-rotation by means of three drive motor.

The invention discloses a multi-layer centrifugal filtration industrial sewage treatment device, which comprises a sedimentation tank, the lower left corner of the sedimentation tank is provided with a water inlet pipe, and the upper right corner of the sedimentation tank is installed inwardly with a telescopic hose through a connecting sleeve. The lower end of the water pump is provided with a water pump, and the two sides of the water pump are connected with a buoyancy ring. The upper end of the settling tank is provided with a multi-stage centrifugal filter structure through a limit mounting plate. The multi-stage centrifugal filter structure includes a The centrifugal protection cover, the upper end of the centrifugal protection cover cooperates with the limit bearing sleeve set on the limit installation plate through the rotating sleeve to install the active centrifugal filter cartridge, and the active centrifugal filter cartridge is located on the outside of the centrifugal protection cover. The invention has the advantages of compact and novel structure, simple device installation, convenient maintenance, high centrifugal filtration efficiency, good effect, time-saving and labor-saving, etc.

The invention discloses a household type embryo-protection rice husking machine for rice. The household type embryo-protection rice husking machine for the rice comprises a grain hopper, a power transmission system, a fine smashing system, a rice husking machine shell and an embryo rice screening system; the grain hopper, the power transmission system, the fine smashing system and the embryo rice screening system are all installed in the rice husking machine shell; the rice husking machine shell is provided with a feeding opening of the grain hopper; an outlet of the grain hopper is connected with the fine smashing system, and the fine smashing system is connected with the embryo rice screening system; and the power transmission system provides needed power for the fine smashing system. According to the household type embryo-protection rice husking machine for rice, rice finished products are bright and pure white, the embryo retaining rate is high, chaffs, rice skin bran, embryo rice and smashed rice can be automatically screened, and no chaffs, rice bran and smashed rice exists in the embryo rice; and in the rice husking process, the temperature is stable, and less energy is consumed.

The invention relates to the technical field of microwave communication, and discloses a multi-frequency band elimination filter. The filter comprises an input port, an output port, a waveguide transmission line and a plurality of filter bodies. The filter bodies are coupled with the two sides of the waveguide transmission line respectively, and the filter bodies are composed of resonators with the same resonance frequency or different resonance frequencies. Compared with a traditional band elimination filter which is formed by arranging resonators in a linear mode, the multi-frequency band elimination filter has the advantages that the structure is compact and novel, and due to the fact that the resonators with the same resonance frequency or different resonance frequencies to be arranged on the two sides of the waveguide transmission line in a coupled window mode, the sizes of devices in the system are effectively reduced, a plurality of useless frequency band signals can be also blocked, and the performance is greatly optimized.

The invention discloses a one-step continuous sewage acid mixing device comprising an outer tank body and an inner tank. The middles of the outer tank and the inner tank are penetratingly provided with a central cylinder, and the inner side of the inner tank is provided with spiral blades, a plurality of water pipes communicated with the inner chamber of the inner tank are arranged on the outer ring of the top of the inner tank, a plurality of first stirring blades are arranged on the outer sidewall of the inner tank, and a plurality of second stirring blades are arranged on the inner wall of the central cylinder on the upper side of the inner tank. A plurality of inner ring plates are arranged on the outer sidewall of the inner tank, and a plurality of outer ring plates are arranged on the inner wall of the outer tank corresponding to the positions of the inner ring plates. The one-step continuous sewage acid mixing device is novel and compact in structure, and can mix and match the water and the acid liquid several times, and only one motor for driving is needed. Energy consumption is low, and the water and the acid liquid can be completely mixed at one time to facilitate the application and promotion.

The invention discloses a large-diameter hole drilling fixing device. The large-diameter hole drilling fixing device comprises a supporting mounting module and a limiting sliding clamping module; thesupporting mounting module comprises an I-shaped supporting mounting column; a limiting moving plate is arranged on the left side of the upper end of the I-shaped supporting mounting column; a protective limiting plate is arranged at the upper end of the limiting moving plate; limiting sliding holes are vertically and symmetrically formed in the left side and the right side of the limiting movingplate; the front side and the rear side of each limiting sliding hole are provided with a limiting sliding groove and a limiting moving wheel groove correspondingly by being matched with the limitingmoving plate; the limiting sliding clamping module is arranged on the I-shaped supporting mounting column and comprises a clamping transmission structure which is embedded into the upper half sectionof the interior of the I-shaped supporting mounting column and a double-way clamping structure which is arranged right above the I-shaped supporting mounting column. The large-diameter hole drilling fixing device has the advantages of being compact and novel in structure, concise in appearance, stable and efficient in transmission, easy to mount and debug and the like.

The invention relates to a rhombus trajectory moving compound sieve. The sieve comprises a rack and a machine shell, the rack is provided with the machine shell, a feeding opening is formed in the upper portion of the machine shell, a first discharging opening is formed in the bottom of the machine shell, a rhombus vibration sieving unit is arranged in the machine shell, and comprises a first sieving plate set and a second sieving plate set, and the first sieving plate set and the second sieving plate set are arranged on the two sides of the inner wall of the machine shell. According to the rhombus trajectory moving compound sieve and the sieving machine thereof, particulate of river sand, food raw materials and the like can be effectively sorted and sieved according to the thickness, and the sieving machine has the beneficial effects of being high in sorting and sieving efficiency and small in labor intensity, and saving time and labor

The invention relates to a digital pressure regulating device of an optical fiber grinding miller, which can display a pressure value in real time and adjust the pressure according to the pressure value. The digital pressure regulating device of the optical fiber grinding miller comprises a clamp positioning supporting piece, a pressure applying piece main body, a pressure applying screw rod, a pressure applying gasket, a pressure applying spring, a pressure applying rod nut and a pressure sensor; in an assembling process, the pressure applying piece main body is movably inserted into an upper sliding cavity of the clamp positioning supporting piece; the pressure applying screw rod is movably arranged in a ladder-shaped through hole in the pressure applying piece main body in a penetration manner; the bottom of the pressure applying screw rod is abutted against a movable end of the pressure sensor; the pressure applying gasket is sleeved on an upper small-diameter end of the pressure applying screw rod; the pressure applying spring is sleeved on the upper small-diameter end of the pressure applying screw rod and the lower end of the pressure applying spring is abutted against the pressure applying gasket; a thread end of the pressure applying spring is in movable threaded connection with an inner thread of a large-diameter ladder hole in the pressure applying piece main body; the thread end of the pressure applying spring is abutted against the upper end of the pressure applying spring. With the adoption of the structure, the digital pressure regulating device provided by the invention has the characteristics of capability of displaying a pressure regulating numerical value and convenience for use.