12 results about "Motor speed" patented technology

The invention discloses a double-motor speed-adjusting ball making machine, which is characterized in that a motor and a first reduction box which are connected together are arranged on an inner support frame of a machine body; a block cutting device is arranged at the output end of the first reduction box; a hopper is arranged at the upper end of the block cutting device; a speed adjusting motor and a second reduction box which are connected together are arranged on the upper end of the machine body; a worm steering device is arranged at the output end of the second reduction box; an auger is connected with the worm steering device; and the auger is inserted inside the hopper. By the arrangement, the machine disclosed by the invention can squeeze materials through the two motors, so that the stuffing of the ball making machine is evenly output, the product is formed in standard, therefore the product quality and the production efficiency are improved.

A method of synchronizing the timing of a plurality of physically coupled print engines using a small delta time increment. According to the first mode of practice, the second electrophotographic module, designated as E2, is started at a slower operating speed than its normal run speed. The PI control algorithm that controls the motor speed will then allow the speed of E2 to reach its nominal speed.

An automatic spot drill motor speed control method includes following steps: 1), acquiring acceleration planning charts (a1, a2,..., an); 2), setting acceleration period of each time of acceleration as delta tn which refers to time for which current speed needs to be maintained to run for delta tn before nth acceleration, and combining speed planning charts (v1, v2, ..., vn) of a motor acquired inthe step 1) by calculation and pulse planning charts (l1, l2, ..., ln) of pulse number needed for reaching target speed, wherein delta tn is in direct proportion to the current speed of a spot drillstepping motor, and minimum acceleration period is delta t; 3),calculating according to the target position and the current position of the spot drill motor to acquire stroke L, combining vp and L, and comparing values in the speed planning charts and the pulse planning charts of the step 2) to acquire a speed control curve meeting the speed planning charts and the pulse planning charts, wherein the target speed is vp. By the method, quick acceleration of the spot drill stepping motor can be realized, and working stability and efficiency of the spot drill motor can be improved.

The invention discloses an intelligent maintenance device for heavy oil and high wax-bearing oil wells. The intelligent maintenance device comprises a pumping unit and a pumping unit motor, the pumping unit motor is installed on the middle part of the pumping unit, one side of the pumping unit is fixedly provided with a pumping unit motor control box, one side of the pumping unit is fixedly provided with a pumping rod, the middle part of the pumping rod is fixedly provided with a pumping rod wireless load sensor, the lower side of the pumping rod is provided with an oil well, one side of the oil well is provided with an agentia pipeline transportation and mixing mechanism, and the inner part of the pumping unit motor control box is successively fixedly provided with a pumping unit wirelesscurrent sensor, and a pumping unit motor speed regulating drive module. According to the intelligent maintenance device for the heavy oil and the high wax-bearing oil wells, working conditions of theoil wells being maintained can be tracked in real time, automatic maintenance can be conducted in real time according to the working conditions of the oil wells, and the problems of high maintenancelabor intensity of manual dosing, low efficiency of agentia, high hot cleaning cost of a boiler car, and secondary pollution of formation, oil well pump blocked by wax, and short period of pump inspection are solved.

The invention particularly relates to a method for switching a vector mode and a scalar mode in high-power motor control, which solves problems that over-current occurs easily in existing high-power motor control, the service life is reduced, and that the reliability of the whole system is poor. The method is characterized comprising the steps that a, when a motor speeds up, the modulation degree is increased to a limitation threshold value M1, and the control mode transits from the vector mode to the scalar mode; b, when the motor speeds down, the modulation mode gets into 3-frequency-division modulation from a square wave mode, then the control mode transits from scalar control to vector control; c, the modulation mode is switched firstly, the modulation degree reduces to acquire the modulation degree M3 as soon as getting into 3-frequency-division, wherein the modulation degree M3=Mmax-Mdelta-Mhyster; and d, after the modulation mode gets into 3-frequency-division, lux linkage gradually decreases to a normal threshold value Phim2, the control mode is switched from scalar control to vector control. The method provided by the invention prolongs the service life of the motor, and shortens the test period at the same time.

The invention discloses a vehicle-mounted shelter electric top cover which comprises a top cover, a guide rail device, a top cover moving driving device and a lock pin mechanism, the guide rail device is a rolling linear guide rail, I-shaped guide rails are fixed to the two longitudinal sides of the shelter top of a vehicle-mounted shelter respectively, and one end of each of the I-shaped guide rails is adjacent to the longitudinal edges of the shelter top window respectively. A plurality of sliding blocks with openings facing downwards are respectively fixed below two longitudinal side edges of the profile frame at intervals. A motor speed reducer combination of the top cover movement driving device is fixed on the cabin top outside one corner of the cabin top window; a gear is fixed on the output shaft of the motor speed reducer combination; the rack is fixed in the longitudinal middle of the profile frame, and the upper edge of the gear is meshed with the lower edge of the rack. The lock pin mechanism is arranged on the shelter top outside the other corner of the shelter top window and on one corner of the top cover. The vehicle-mounted shelter electric top cover is compact in structure, convenient to install, high in opening and closing speed, high in transmission efficiency and low in manufacturing cost.

The invention discloses a gyroscope damping effect test device which comprises a stepping motor, a coupler body, a magnet block, a speed increaser, a coupler, a gyroscope, a bearing, a motor end cover, a multi-section sleeve, a motor flange plate, a pair of speed increaser flange plates, a pair of bearing flange plates, a gyroscope sleeve, acceleration sensors, a charge amplifier and an upper computer. The speed regulator regulates the rotating speed of the stepping motor to drive the upper end of the upper magnetic coupling body to rotate quickly, an upper magnet block is embedded in the lower end of the upper magnetic coupling body, and a lower magnet block is embedded in the lower end and the upper end of the lower magnetic coupling body. A motor output shaft and a speed increaser low-speed shaft are driven to synchronously rotate through a magnetic coupling effect; the speed increaser increases the output rotating speed, a high-speed shaft transmits a rotating force to the gyroscope through the coupler to drive the gyroscope to rotate at a high speed, a left-end vibration source horizontally acts at the lower end of the device, and the two acceleration sensors conduct acceleration on the gyroscope sleeve to collect vibration signals.

A distillation device may comprise a source fluid input and an evaporator in fluid communication therewith. The device may further comprise a compressor having an impeller coupled to a motor, the compressor having a low pressure inlet for vapor from the evaporator and a high pressure outlet for compressed vapor. The device may further comprise at least one temperature sensor configured to monitor temperature of vapor in the inlet and a condenser in heat transfer relationship with exterior surfaces of the evaporator and in fluid communication with the compressor outlet. The device may further comprise a controller configured to govern rotation speed of the impeller with an impeller motor command based on a calibrated motor speed for the distillation device. The controller may be configured to determine an adjusted motor speed for a next use of the device and overwrite the calibrated motor speed with the adjusted motor speed.

The invention discloses a high-accuracy motor test system based on a triode trigger circuit. The high-accuracy motor test system is composed of a single-chip microcomputer (1), a power supply module (2), a motor speed control module (3) and a display (7) connected with the single-chip microcomputer (1) which are connected with the single-chip microcomputer (1), a measured motor (4) connected with the motor speed control module (3), a speed sensor (6) connected with the measured motor (4), and a speed signal processing module (5) connected with the speed sensor (6). The motor speed control module (3) is further connected with the power supply module (2). The high-accuracy motor test system is characterized in that a triode trigger circuit (8) is arranged between the speed signal processing module (5) and the single-chip microcomputer (1). By adopting the system of the invention, the speed of a motor can be tested accurately, and test personnel can better judge the performance of the motor. Through the function of the triode trigger circuit, speed signals are more stable, and the accuracy of speed test is further improved.