34results about How to "Control output speed" patented technology

The invention discloses a blocking remover for a reservoir of an oil well. The blocking remover is applied to the technical field of oil extraction in an oil field, comprises an agent A and an agent B, and is characterized in that the weight percentage of the agent A is 25-35%; the weight percentage of the agent B is 65-75%; the agent A comprises the following components by weight: 45-50% of petroleum mixed xylene, 1-2% of nonyl phenol polyoxyethylene (4) ether, and the balance of 0# diesel oil; the agent B comprises the following components by weight: 6-10% of glacial acetic acid or sulfamic acid, 2-2.5% of ammonium bifluoride, 2% of ammonium chloride, 1-2% of citric acid, 1.5-2% of corrosion inhibitor 7801, 3-5% of tertiary butanol, 0.5-1% of octyl phenol polyoxyethylene (10) ether and the balance of water. The blocking remover has the following effects that: the agent A and the agent B are respectively prepared so as to be beneficial to storing the blocking remover for a long time, the agent A of the blocking remover has strong dissolving capacity on crude oil heavy components, such as wax colloid asphalt, and the washing oil efficiency on oil sand is more than 90%. The dissolving rate of the agent B of the blocking remover on carbonate is more than 80%, and the corrosion speed on N80 steel is low and is smaller than 2 g/m<2>.h.

The invention discloses a shield tunneling machine cutterhead driving system based on hydro-viscous drive. The shield tunneling machine cutterhead driving system comprises multiple groups of driving mechanisms. Each group of driving mechanism is connected with a transmitting mechanism through an input shaft, the transmitting mechanism is connected with a cutterhead driving small gear with planetary deceleration through an output shaft, and the cutterhead driving small gear is in meshed transmission with a cutterhead driving large gear to drive a cutterhead to rotate. The shield tunneling machine cutterhead driving system is characterized in that a hydro-viscous drive mechanism comprises a driving drum fixed to the input shaft and a driven drum fixed to the output shaft. The driving drum is connected with multiple groups of main friction plates through splines, the driven drum is connected with multiple groups of auxiliary friction plates through splines, and the main friction plates and the auxiliary friction plates are arranged in a cross mode. A piston cavity is formed in the driving drum, a piston is arranged in the piston cavity, and the piston can drive the main friction plates to adjust the gaps between the main friction plates and the auxiliary friction plates. The shield tunneling machine cutterhead driving system based on the hydro-viscous drive has the advantages of being stepless in speed regulation, large in driving power, excellent in impact resistance and good in overload protection performance.

The invention provides a servo control method for the gasoline engine speed in a hydraulic system of a legged robot. The servo control method comprises the following steps: (1) calculating the engine speed error e and the engine speed error change rate ec; (2), after the fuzzy logic calculation of e and ec, outputting the proportionality coefficient increment delta kp and the integral coefficient increment delta ki; (3) calculating the proportionality coefficient and the integral coefficient according to the following formulas correspondingly: kp = kp0 + delta kp and ki = ki0 + delta ki; (4) calculating the accelerator opening degree according to the following formula: S1 = S1_old + kp*ec + ki*e; (5) calculating the accelerator opening degree change caused by the hydraulic oil flow rate change according to the following formula: S2 = kQ*detal Q; and (6) calculating the final accelerator opening degree Sf = S1 + S2, wherein the rotation of a steering engine is controlled through the accelerator opening degree in the PWM form, the air inlet volume is controlled by controlling the opening degree of an engine throttle valve through an accelerator cable, and finally the engine speed is controlled. The servo control method provided by the invention has the advantages that the feedforward control is adopted, so that the stable engine speed can be guaranteed well under the circumstance that the flow rate changes suddenly; parameters are modified online by adoption of fuzzy self-tuning, so that the different control requirements can be met; and accordingly, the hydraulic system can have the good dynamic property and static property.

The invention relates to a purifying device, in particular to a wastewater filtering and purifying device, which comprises a device support, a moving mechanism, a detaching mechanism, a purifying mechanism, a power mechanism, a transmission mechanism, an extruding mechanism, a pushing mechanism, a retracting and releasing mechanism and a speed changing mechanism. The transmission mechanism can be driven by the power mechanism to move, the transmission mechanism drives the extruding mechanism and the pushing mechanism to move, the extruding mechanism extrudes pollutants in the purification mechanism to separate insoluble pollutants from water, and when the pushing mechanism moves to the front end limit position, the pushing mechanism pushes the purification mechanism to be opened, so that the pollutants separated in the purification mechanism are discharged out of the purification mechanism. The retracting and releasing mechanism releases the water pumping pipeline to different depths, then the speed change mechanism is controlled to move, the speed change mechanism controls the output speed of the power mechanism, then the working speed of the extruding mechanism and the pushing mechanism is controlled, and therefore the use requirement for increasing insoluble substances in waste water in deep water is met.

The invention discloses a sliding-preventing method and sliding-preventing hydraulic control system for a traveling device, and belongs to the technical field of hydraulic control systems. The sliding-preventing method for the traveling device includes the following steps that the hydraulic control system is arranged on the traveling device, the hydraulic control system comprises a hydraulic mainoil way, a bidirectional variable hydraulic pump, a bidirectional hydraulic motor, an electric control unit and a planet gear transmission mechanism, the planet gear transmission mechanism comprises agear ring, a sun gear, a planet gear and a planet carrier, and the gear ring, the sun gear and the planet carrier are arranged coaxially and rotationally; when the traveling device stops, the electric control unit collects the rotating speed of the bidirectional hydraulic motor and the rotating speed of the gear ring and automatically calculates the output rotating speed of the planet carrier, and if the output rotating speed of the planet carrier is not zero, the electric control unit sends a control signal to the bidirectional variable hydraulic pump to change the displacement of the bidirectional variable hydraulic pump until the output rotating speed of the planet carrier is zero. According to the sliding-preventing method for the traveling device, the mechanical zero point can be accurately controlled, and sliding of the traveling device can be effectively prevented.

The invention discloses an eddy speed changer which comprises a first rotating shaft, a second rotating shaft, a rotating outer frame, an inner rotor assembly with a central pivot turntable, a driving mechanism, two conducting rings and two magnetic rotors. The driving mechanism comprises an outer sleeve and an inner sleeve which are arranged on the second rotating shaft in a sleeved mode, a cam is arranged on the inner side of the outer sleeve, a groove is formed in the peripheral face of the inner sleeve, the inner sleeve is sleeved with the outer sleeve, the cam extends into the groove, the cam slides in the groove to drive the outer sleeve to move in the axial direction of the second rotating shaft, therefore, a fourth disk position is driven to make axial movement, finally, a third disk position and the fourth disk position on the outer side of the inner rotor assembly are made to move relative to a first disk position and the third disk position to change the size of a gap, and the output rotating speed is controlled. The conducting rings and the magnetic rotors are arrayed in different disk positions, so that the eddy speed changer can further meet different filed installation requirements.

The invention discloses a rice milling device for rice processing. The rice milling device comprises a feeding mechanism, a screening mechanism and a rice milling mechanism, wherein the feeding mechanism is connected with the screening mechanism through a first feeding channel; the rice milling mechanism is arranged below the screening mechanism; the feeding mechanism comprises a feeding groove; the lower portion of the feeding groove is fixedly connected with the feeding groove through a first feeding port; a stirring shaft is transversely fixed to the interior of the feeding groove; the left end of the stirring shaft penetrates through the left side wall of the feeding groove and then is fixedly connected with a rotating motor; and a plurality of stirring blades are fixed to the stirring shaft. When the discharge flow needs to be reduced, a driving motor drives a driving wheel to rotate in the opposite direction, so that a fixed block moves towards the inner side, and a gap between two discharging plates is reduced; and the feeding speed and flow are controlled by controlling the gap between the two discharging plates, so that quantitative feeding is achieved, the overflow of brown rice is prevented, the blockage of the brown rice is avoided, and the rice milling processing quality of the brown rice is effectively guaranteed.

The invention provides a scraper conveyor and a self-adaptive speed regulating method thereof. The method comprises the steps as follows: acquiring a real-time position value of the scraper conveyor when a shearer runs; reading and recording a running torque value of a frequency converter of the scraper conveyor, and obtaining a no-load torque value and a full-load torque value of the scraper conveyor through data analysis; simulating the current coal conveying capacity of the scraper conveyor by related calculation of torque, speed and shearer position of the frequency converter; and adjusting given speed of the scraper conveyor according to the calculated coal transportation amount. Any auxiliary sensors are not required to participate in the whole speed regulation process, and reliability is higher.

The invention relates to a transmission system with a one-way self-adaptive joint device and a gear shifting control method thereof.The transmission system comprises a gear shifting executing mechanism, a driving motor, a mechanical transmission and the one-way self-adaptive joint device, and the mechanical transmission comprises a power input unit with a change gear and a power output unit; the one-way self-adaptive joint device comprises a first joint gear ring, a second joint gear ring and a joint sleeve, the joint gear ring is in transmission connection with a speed change gear corresponding to the power output unit, and the joint sleeve is fixedly connected with the power output shaft and is pushed by the gear shifting execution mechanism to be jointed with the first joint gear ring or the second joint gear ring. The gear shifting control method comprises the steps of unloading, gear disengagement, gear engagement and torque recovery of the driving motor. The driving motor can control the joint gear ring to be matched with the rotating speed of the target gear, and then the gear shifting executing mechanism pushes the joint sleeve to be in butt joint with the joint gear ring at the rotating speed of the target gear, so that rapid gear shifting is achieved, and impact force of gear shifting is effectively buffered.

The invention discloses an auxiliary material supply synchronizing mechanism of metal powder additive manufacturing equipment. The auxiliary material supply synchronizing mechanism comprises a frame body, a disc-shaped transverse mounting plate is fixedly installed on the upper portion of the frame body, a barrel body is fixedly installed in the middle of the top of the mounting plate, a first vertical shaft is installed in the middle of the bottom of the barrel body, the lower end of the first vertical shaft is movably connected with a bottom bearing in the barrel body, a conical roller fixedly sleeves the position, close to the upper end, of the first vertical shaft, the small-diameter end of the conical roller faces upwards, the lower end of the first vertical shaft is fixedly sleeved with a driven gear, the inner bottom of the barrel body is fixedly provided with a vertical power motor, an output shaft of the power motor is fixedly provided with a driving gear, and the driving gearis matched with the driven gear in a meshed mode. According to the auxiliary material supply synchronizing mechanism, the output speeds of metal powder particles in different material cylinders can be linearly controlled through adjustment of corresponding electric telescopic rods, and the whole mechanism only needs one power motor to provide the power; and therefore, the auxiliary material supply synchronizing mechanism is simple in structure and convenient to use.

The invention discloses a discharging width limiting door for a ball grinding mill. The outer barrel wall of the ball grinding mill is provided with an output opening. The width limiting door which can be used for adjusting the width of the output opening in a sliding way is arranged in the output opening. After the ball grinding mill is stopped, materials and steel balls in the ball grinding mill are output together through the output opening. The width limiting door is capable of adjusting the size of the output opening, and controlling the output speed and the output quantity of the materials and the steel balls, so that stable output of the steel balls of various specifications is ensured.

The invention discloses a pneumatic pump for dredging a water sump and a working method of the pneumatic pump, and belongs to the technical field of dredging equipment. The pneumatic pump comprises amain pump body, a pneumatic motor and a coupler, wherein the pneumatic motor is fixedly mounted at the top of the main pump body through a flange, an output shaft of the pneumatic motor is connected with a main shaft of the main pump body through the coupler, and impellers used for stirring, centrifuging and outputting fluid are mounted at the tail end of the main shaft. According to the technicalscheme, the pneumatic pump can be used under the relatively complicated working conditions of the water sump, and cannot be limited by using above or below water.

The invention relates to a welding manipulator driving device, which belongs to the technical field of fluid braking devices. The welding manipulator driving device comprises an air cylinder, wherein the air cylinder is divided into a front cover, a cylinder body and a back cover, a piston cavity is formed in the cylinder body, a piston is installed in the piston cavity, a piston rod which is connected with the piston penetrates through the front cover, and a first air port is formed in the back cover. The welding manipulator driving device is characterized in that a hydraulic oil port which is communicated with the piston cavity is formed in the front cover, the hydraulic oil port is connected with the bottom of an oil tank outside the air cylinder through an oil inlet pipeline, and a speed regulating valve is installed on the oil inlet pipeline; hydraulic oil is contained in the oil tank, an air chamber is left in the upper part of the oil tank, and a second air port which is communicated with the air chamber is formed in the top of the oil tank. The welding manipulator driving device has the advantage of simple structure, only one oil tank needs to be arranged on the original air cylinder, and compared with an existing gas-liquid damping type air cylinder, the air cylinder is lower in the cost, but the problem of unstable output of the air cylinder can be solved.

The invention discloses a visual sorting line for directionally feeding bottle garbage. The visual sorting line for the bottle garbage comprises a directional vibrating feeder, a bottle shifting machine, a guide belt conveyor and a high-speed jet-propelled light sorting machine, a material uniformizing plate is mounted in the middle of the feeding end of the lower cavity wall of a hopper of the directional vibration feeder, and a plurality of flow guide strips are symmetrically distributed at the discharging end; a stirring soft finger of the bottle stirring machine is positioned in the hopper and is positioned above the material uniformizing plate; a lifting adjusting assembly of the bottle shifting machine controls the height of a shifting soft finger so as to control the output flow of the bottle; a plurality of transverse barrier strips are longitudinally distributed on the upper surface of a wide guide belt of the guide belt conveyor at equal intervals, each transverse barrier strip right faces one flow guide plate left and right, the transverse barrier strips and the flow guide strips limit longitudinal movement of light materials, and the left end of the wide guide belt right faces a feeding port of a sorting bin body of the high-speed jet-propelled light sorting machine. The sorting device has the advantages of being uniform in longitudinal distribution, capable of guiding transverse movement, uniform in feeding speed, good in sorting effect and high in sorting speed.

The invention belongs to the technical field of mechanical equipment, and provides a control device for a hydraulic motor. The control device comprises the hydraulic motor, wherein the hydraulic motoris connected with a manual speed regulating device, the manual speed regulating device is connected with a valve control device, and the valve control device is connected with an oil inlet of the hydraulic motor; and the manual speed regulating device can also be connected with an automatic regulating device. According to the control system for the hydraulic motor, control over the output speed of the hydraulic motor is achieved through a pure mechanical structure, and the control system has the advantages of being simple in structure and low in production cost; the hydraulic motor works without depending on a circuit, so that the fault probability is low; an automatic speed regulating device is matched with the manual speed regulating device, when one device goes wrong, the other deviceis started to work, so that the situation that the hydraulic motor cannot normally regulate the speed is avoided, and the working efficiency is not affected; and the speed regulating device of the mechanical structure has the advantages of being simple in troubleshooting, convenient to maintain and the like.

The invention relates to the technical field of cooling equipment, and particularly discloses a cooling furnace and a material cooling method. The cooling furnace comprises a storage bin, a feeding cylinder, a furnace body, a baffle, a waste heat recovery device and a discharging device, the feeding cylinder is arranged at the bottom of the storage bin, a containing cavity is formed in the furnace body, the feeding cylinder communicates with the storage bin and the containing cavity, the width of a cylinder opening of the feeding cylinder is smaller than the width of the bin wall of the storage bin and smaller than the width of the cavity wall of the containing cavity, the baffle is arranged at an angle relative to the side wall of the containing cavity, the baffle is located between the feeding cylinder and a discharging port of the containing cavity and inclines towards the discharging port, an air inlet and an air outlet are formed in the side wall of the containing cavity in a penetrating mode, the air inlet communicates with a first cavity and the waste heat recovery device, the air outlet communicates with a second cavity and the waste heat recovery device, a discharging device is arranged at the discharging port, and the discharging device is used for adjusting the material releasing speed of the discharging port. The cooling furnace is simple in structure, the equipment failure rate can be reduced, and the waste heat recovery efficiency is high.

The invention discloses a cantilever type heading machine cutting mechanism adopting a permanent magnet synchronous motor. The method comprises the following steps that: a permanent magnet variable-frequency motor and a servo frequency converter are arranged in a motor box body, and are connected through a circuit; a cutting main shaft is connected with an output shaft of the motor through a spline sleeve; the cutting main shaft and the output shaft of the motor are hollow shafts; a cutting head is tightly connected with the cutting main shaft, and includes a cutting head body and an inner spline sleeve; a nozzle is arranged on the cutting head body; the inner spline sleeve is fixedly connected with the cutting head body; a water accommodating cavity is formed between the inner spline sleeve and the cutting head body, and communicates with the nozzle; a small hole is formed in the inner spline sleeve, and communicates with the water accommodating cavity; an inner spraying system is mounted in the hollow parts of the output shaft of the motor and the cutting main shaft; one end of a water pipe is tightly connected with the cutting main shaft, and the other end of the water pipe is tightly mounted on the motor. The cantilever type heading machine cutting mechanism can realize stepless speed adjustment of the cutting head, and is higher in working efficiency; and the spraying system is simple in water way, high in pressure and excellent in dust removing effect.