33results about How to "Change drive" patented technology

A method for correcting a printing error in an inkjet printer having a printer head on which the 1through 2Nnozzles are provided, in which N is a positive integer greater than 0, the method including: determining whether a trailing end of a print paper has escaped from the feed roller which periodically moves the print paper the width of the printer head; if the trailing end of the print paper is determined to have escaped from the feed roller, moving the print paper half the width of the printer head and printing a reference line by ejecting ink at a predetermined interval using a knozzle (1<=k<=N) among the 1though Nnozzles disposed above the print paper; moving the print paper on which the reference line is printed half the width of the printer head and printing comparison lines by ejecting ink at a predetermined interval using the (N+1)through 2Nnozzles disposed above the print paper; detecting an error distance between the reference line and the comparison line printed by the lnozzle (N+1<=L<=2N) disposed at a position corresponding to the knozzle among the (N+1)through 2Nnozzles; and correcting a distance that the print paper moved according to the detected error distance.

The invention discloses a double-drive planetary transmission driving system of a shield machine. The system follows a driving law of double-input, the conflux output of input planet carriers, the diversion of an output planetary system I and an output planetary system II and the conflux to a twin ring gear, has the double-input and single-output characteristics, achieves the purpose of increasing torque and widening speed adjustable range, realizes the low speed high torque output by changing an output torque and a rotating speed, changes the driving means of a motor, can obtain many different output working conditions and can be suitable for many types of shield machines. The asynchronous problem existing in a structure of multipath speed changes and a plurality of power input utilized by a traditional driving system is fundamentally solved. A sealed planet wheel train load is commonly shared by two output planetary systems and twin gear rings and the function of power diversion andconflux is realized, thereby the bearing capacity is increased. The system has larger transmission ratio, can adapt to the high powerful output and can bear heavier construction load.

A thermomagnetic sliding bush stop sealing device for a nuclear reactor coolant pump comprises a sliding bush base and a sliding bush. The sliding bush base and a shaft are in interference fit, the sliding bush and the shaft are in clearance fit, the sliding bush is sleeved in the sliding bush base, a first seal ring, a second seal ring and a third seal ring are arranged on the sliding bush which is made of metal materials, and the sliding bush base is made of magnetic materials. The sliding bush is internally provided with two symmetric spring cavities, springs are arranged in the spring cavities, and the sliding bush base is provided with a hole. The sliding bush base and the sliding bush are attracted to compress the springs while the hole is sealed by the sliding bush. When a primary seal of the nuclear reactor coolant pump fails, high-temperature process fluid makes the sliding bush base lose magnetism, magnetic force between the sliding bush and the sliding bush base disappears, the sliding bush moves to the primary seal until being tightly pressed on the wall of a pump cavity under the action of spring force and pressure of the high-temperature fluid in the pump cavity, and the high-temperature process fluid in the pump cavity is prevented from leaking outwards. The thermomagnetic sliding bush stop sealing device is passive and free of external gas supply.

The present invention relates to integrated circuit technology, in particular to a load self-adaptive segmented driving circuit, and its application in a step-down voltage stabilizing circuit (also called a BUCK circuit). The invention discloses an adaptive section driving DC-DC converter. The present invention uses m PMOS power tubes and NMOS power tubes connected in parallel to form a switching conversion circuit, and drives different numbers of power tubes for switching conversion according to different load currents. It reduces the power of the power tube, thereby reducing the driving loss and switching loss under light load conditions. The invention changes the drive mode of the power tube, and changes the number of power tubes turned on by detecting the change of the load current, thereby minimizing the sum of the conduction loss and the driving loss of the power tube, thereby improving the efficiency of the DC-DC converter, especially Efficiency under light load. The invention is particularly suitable for use in a step-down voltage stabilizing circuit.

The invention relates to an integrated circuit technology, in particular to a load self-adaptive sectional driving circuit with a mode switching function. A self-adaptive sectional driving DC-DC (Direct Current to Direct Current) converter which is disclosed by the invention comprises a conversion unit, a driving unit and a feedback control unit and is characterized in that the conversion unit comprises a switching circuit and a filtering circuit; the switching circuit comprises a plurality of PMOS (P-channel Metal Oxide Semiconductor) power tubes which are connected in parallel and a plurality of NMOS (N-channel metal oxide semiconductor) power tubes which are connected in parallel; the PMOS power tubes are divided into PM groups; the NMOS power tubes are divided into NM groups; and the driving unit can be used for respectively controlling on-off of each group of PMOS tubes and NMOS tubes. The self-adaptive sectional driving DC-DC converter has the beneficial effects that a driving mode of the power tubes is changed; the effect of working in a PSM (Pulse Skipping Modulation) control mode under a light load is improved; the number of the started power tubes is changed by detecting variation of a load current so as to minimize the sum of conduction loss and driving loss of the power tubes, thereby improving efficiency of the DC-DC converter and particularly efficiency under the light load. The self-adaptive sectional driving DC-DC converter is particularly suitable for the DC-DC converter.

A rotary piston heat engine consisting of a mechanism based on a lever anchored to the periphery of a crankcase formed by two shells coupled to one another, by means of a shaft (3) located at one of the ends thereof, which enables it to pivot on the same, with an intermediate grooved portion, along which the rod of a crankshaft slides and which, with the other end, acts on a piston coupled by means of a connecting rod. The rotation of the crankcase (1) on the crankshaft (8) induces the displacement of the piston (5) coupled to the lever (2) by means of the connecting rod (4) inside the cylinder (6), the gas being compressed inside this chamber and initiating the cycle of an internal combustion engine. The shaft of the crankshaft may be blocked, thus impeding its rotation, or coupled to a single direction clutch. The basic assembly of this engine is formed by a block of two cylinders coupled to the crankcase and a crankshaft of two rods located at 180°, which act on two symmetrical levers that move both pistons.

The invention relates to a heat flow driving type elastic cone parking sealing device for a nuclear main pump. The heat flow driving type elastic cone parking sealing device comprises a sealing support and an elastic cone, wherein a triangular heat expansion layer is welded on the elastic cone; a rectangular heat expansion layer is welded on the sealing support; the elastic cone is sleeved on a main shaft, and a sealing gap is formed between the elastic cone and the sealing support; the elastic cone and the main shaft are in interference fit; a sealing ring is arranged between the elastic cone and the main shaft; when primary seal of the nuclear main pump is in failure, under the effect of a fluid force, the elastic cone is pressed to the sealing support; moreover, under the heat effect of a hot flow, the triangular expansion layer is expanded by heat, and the elastic cone is further compressed; the rectangular expansion layer on the sealing support is expanded by heat, the elastic cone is compressed radially; under the fluid force and the pressing forces of the triangular expansion layer and the rectangular expansion layer, the top end of the elastic cone is deformed, and surface contact of the elastic cone and the sealing support is realized, thus a flow leakage passage is blocked, and leakage of radioactive sealing fluid is prevented; the device changes the driving manner of parking sealing work, an external air source is not required, and the device has nonmotility.

Disclosed is a scraper driving device of a domestic intelligent automatic pancake machine. The device comprises a support assembly in which a feeding port is formed, a scrapper is rotationally arranged in the feeding port, a driving motor is arranged on the support assembly, and the driving motor is in transmission connection with the scrapper through a gear. The scrapper is driven to rotate by the driving motor, and slurry poured into through the feeding port is spread evenly. A thickness regulation mechanism and a positioning mechanism are arranged on a ring gear, and therefore it is ensured that the scrapper is parallel to a fry pan and according to the amount of the slurry, the distance between the scrapper and a fry pan plane is automatically adjusted, the purpose of adjusting pancake thickness is achieved, and it is ensured that the slurry is spread evenly by the scrapper and there is no residual slurry on the scrapper.

The invention provides an off-axis type second-speed transmission control system, which includes a controller connected to the off-axis second-speed transmission. The off-axis second-speed transmission includes an input shaft, an output shaft, an intermediate shaft, a switching Dual clutch, housing, oil circuit structure and oil circuit control system; the controller includes an analog output unit connected to the control unit; the controller is used to obtain the gear information, according to the pre-stored gear The corresponding relationship between the bit information and the control of the analog output unit is used to control the analog output unit to output different analog control information to the control unit. The present invention realizes the purpose of automatic and fast shifting through the controller.