14 results about "Oil pump" patented technology

The invention provides a water dividing oil purifier for lubricating oil used by a ship, which has a damping effect. The water dividing oil purifier comprises a rack and an oil liquid tank to be filtered, the rack is provided with an oil pump for extracting oil liquid to be filtered in the oil liquid tank to be filtered, a heater and an oil suction filter are arranged between the oil pump and the oil liquid tank to be filtered, the oil pump is communicated with a coalescing separator through a demulsifying filter, the coalescing separator is further communicated with a water collecting tank and a pre-filter, the pre-filter is communicated with a fine filter, the water collecting tank is communicated with a sewage bin through a solenoid valve, the water collecting tank is further internally provided with an oil-water interface instrument, the fine filter is communicated with the heater, and an oil liquid pollution degree detector is further communicated with an oil liquid collecting box. The water dividing oil purifier is integrated with filtration and dehydration, can operate continuously, is high in purification and dehydration efficiency, does not change the physiochemical property of the oil liquid, prolongs the service life of the oil liquid, saves a large quantity of machine halt maintenance time, provides guarantee for the continuous operation of the ship, guarantees that the equipment does not stop, can be used for carrying out online monitoring to oil liquid cleaness and feeds back to a control system timely.

The invention discloses an oil-immersed transformer capable of cleaning impurities, and the transformer comprises a mounting frame, an oil discharging mechanism and a cooling box; a motor is fixed tothe outer side of the mounting frame, a rotating shaft is rotatably connected to the interior of the mounting frame, an oil pump is fixed to the right side of a transformer body, and a baffle is fixedto the outer side of an oil discharging pipe; and an oil discharging opening is formed in the outer side of the connecting pipe, the cooling box is fixed to the left side of the fixed plate, and thecooling box is fixed to the right side of the fixed plate. The oil-immersed transformer capable of cleaning impurities is provided with the first filter plate, the filter screen and the waste port, transformer oil in the transformer body is pumped through the oil pump and conveyed into the oil storage tank in cooperation with the oil conveying pipe, the transformer oil is filtered in cooperation with the filter screen, and the impurities in the transformer oil are repeatedly and conveniently filtered; impurities can automatically slide to a waste port to be discharged by matching with the inclined filter screen, the structure is simple, and the service lives of electrical elements in the transformer main body and transformer oil are prolonged.

The invention discloses an automobile electronic oil pump driving system and relates to the field of automobile driving. The automobile electronic oil pump driving system comprises an oil pump, a brushless motor, a controller and a controller upper cover, the brushless motor comprises a motor core, a motor shell and a motor rear end cover, and the oil pump is installed at the output end of the brushless motor. The controller comprises a power supply, a power supply control module, an MCU module, a communication module, a pre-driving and driving module, an angle position sensor and a motor driving chip with a position estimation function; the controller switches an inductive mode in real time in a low-temperature cold start environment to acquire angle position data through the angle position sensor, and controls the rotating speed of the motor by adopting an inductive sine wave algorithm; a non-inductive mode is switched in real time in a position sensor failure environment, counter electromotive force of the brushless motor is collected through a motor driving chip with a position estimation function, and through cooperation with a position estimation algorithm of control software, the angle position of the motor is estimated, and control over the rotating speed of the motor is achieved.

The invention provides a screw machine closed type hydraulic system for a shield machine and the shield machine. The screw machine closed type hydraulic system comprises a screw machine main pump loop connected with a screw machine pump (1), an oil supplementing oil path connected with an oil supplementing pump (2), a main pump control loop connected with a servo oil cylinder (3), and a control valve group connected with the screw machine main pump loop and the main pump control loop; and the servo oil cylinder (3) controls a swash plate of the screw machine pump (1). The screw machine closed type hydraulic system has the beneficial effects that the system can be protected against damage by releasing pressure to the other path when one path of high pressure of the main loop exists, meanwhile, redundant heat of the system can be brought back to an oil tank through the oil path on the low-pressure side, and pump damage caused by overheating of the system is avoided.

The invention relates to an operating system and method for an electric hydraulic gripping apparatus in container loading and unloading equipment. The operating system comprises an electric hydraulic power system, a loading and unloading action control system and an energy accumulation system; the operating system communicates with an oil tank through an oil return pipeline and an oil outlet pipeline; and an oil pump, a pressure regulating valve and a one-way valve are sequentially arranged on the oil outlet pipeline; a throttling valve and a switching valve are sequentially arranged on an energy accumulation pipeline connecting the one-way valve on the oil outlet pipeline with the energy accumulation system; and the energy accumulation system comprises a plurality of energy accumulators. According to the operating system and method for the electric hydraulic gripping apparatus in the container loading and unloading equipment, the efficiency is improved.

The novel internal circulation engine comprises an oil tank and a main body part connected with the oil tank, the oil tank comprises an oil pump pipe and an oil return pipe, the main body part comprises a plurality of air cylinders, a crankshaft, middle teeth and a cam shaft, the air cylinders are annularly and evenly distributed on the periphery of the crankshaft, and each air cylinder comprises an inlet accelerator, an exhaust accelerator and a piston. Oil enters the main body part through an inlet accelerator of one of the multiple air cylinders, the cam shaft and the crankshaft are driven to rotate through hydraulic pressure, the oil sequentially enters the inlet accelerators of all the air cylinders, the oil enters the oil return pipe through an exhaust accelerator, and after the oil enters one of the multiple air cylinders through an oil tank, the oil enters the oil return pipe through the exhaust accelerator. According to the technical scheme, the crankshaft connected with the oil tank is hydraulically driven, so that the crankshaft and the cam shaft in transmission connection with the crankshaft are driven to rotate, oil in the oil tank enters the air cylinder through the oil pump pipe to push the piston, step-by-step internal circulation power driving of the engine is achieved, resource use is effectively reduced through the design of the scheme, and practicability is high.

The invention discloses a constant-speed rotation and anti-lock controller for a wheel type high-speed anti-slip instrument. The controller comprises a U-shaped wheel carrier, sliding columns are arranged on two supporting arms of the wheel carrier, and the wheel carrier moves up and down along the sliding columns; a load sensor group is fixed at the upper end of the wheel carrier, and the upper end of the load sensor group is connected to a hydraulic assembly; an anti-sliding main shaft which is transversely arranged is rotationally connected between the supporting arms, the anti-sliding main shaft is sleeved with a spline sleeve, and a fixing base is arranged on the spline sleeve and used for fixing a tire; one end of the anti-sliding main shaft is fixedly connected with a transmission shaft, the other end of the transmission shaft is fixedly connected to an output shaft of a hydraulic motor, and the hydraulic motor is connected to an external variable-frequency oil pump; the transmission shaft is sleeved with a torsion sensor and an electromagnetic brake. According to the constant-speed rotation and anti-lock controller with the above structure, noise and vibration are reduced, a simulation effect is good, and brake simulation of a high-speed wheel set is achieved.

The invention relates to an oil filter. The oil filter comprises oil filtering drawers and a support, wherein each oil filtering drawer comprises a base wall and a fence; each fence is provided with astepped platform; the lower edge of each fence is provided with a platform seat; a plurality of oil filtering drawers are successively stacked; one side of each fence is provided with an oil inlet pipe and a steam inlet pipe; the other side of each fence is provided with an oil outlet pipe and a steam outlet pipe; a filter layer is separately arranged between an oil inlet pipe and an oil outlet pipe and between a steam inlet pipe and a steam outlet pipe; a plurality of oil inlet pipes are in parallel connection with a main oil inlet pipe which is provided with an oil outlet pump; a pluralityof steam outlet pipes are in parallel connection with a main steam inlet pipe which is provided with a steam generator; a plurality of oil outlet pipes are in parallel connection with a main oil outlet pipe which is connected with an oil storage tank; a plurality of steam outlet pipes are in parallel connection with a main steam outlet pipe which is provided with a negative pressure generation pump; the upper end of each oil inlet pipe is connected with a drying pipe through a three-way valve; the support comprises a top plate and a base plate; the lower end of the base plate is provided witha lift-drop column; and a plurality of oil filtering draws are clamped between the top plate and the base plate. The oil filter provided by the invention has simple structure, is convenient to use, and reduces energy consumption.