39results about How to "No oil spill" patented technology

A comprehensive test device of an oil film bearing belongs to the technical field of the oil film bearing. The structure is as follows: a left bearing, a middle bearing and a right bearing are sequentially arranged from left to right; a shaft connected with a motor through a coupling is arranged inside a bearing hole; an oil path of the left bearing is provided with a dynamic press-in oil hole and a static press-in oil hole at upper and lower top points of a bearing block; oil grooves are arranged inside axle holes at the left end and the right end; the bottom part of each oil groove is communicated with an oil return hole; the dynamic press-in oil hole and a dynamic press-in oil cavity are arranged at the upper part of a vertical center line of a bush; the static press-in oil hole and a static press-in oil cavity are arranged at the lower part; the oil grooves communicated with the oil return hole are arranged on the inner surfaces of the axle holes of a left end cover and a right end cover; the oil path of the middle bearing is respectively provided with the dynamic press-in oil hole at the front and rear top points of the bearing block; the oil grooves are arranged inside the axle holes at the left end and the right end; the bottom part of each oil groove is communicated with the oil return hole; the dynamic press-in oil hole and the dynamic press-in oil cavity are arranged at the front end part and the rear end part of a radial center line of the bush; and the oil grooves communicated with the oil return hole are arranged at the inner surfaces of the axle holes of the left end cover and the right end cover.

The invention discloses a turbocharger. The invention adopts a technical proposal that the turbocharger comprises a turbine rotor shaft assembly, an intermediate, a pressure housing, a diffusion plate fixedly connected with or integrally formed with the pressure housing, wherein the turbine rotor shaft assembly is at least provided with a set of permanent magnet rings matched with each other between a turbine and a compressor impeller. The permanent magnet rings comprise at least one permanent magnet dynamic ring and at least one permanent magnet static ring which are matched with each other to suspend a rotor shaft of the turbine rotor shaft assembly. The invention provides a friction-free turbocharger which uses permanent magnet rings to suspend the rotor shaft of the turbine. The turbocharger can solve the problems of susceptibility to damage, oil leakage and pollution, reduce response lags, and does not cause serious influence on the engine except for reduction in power when damaged. The turbocharger solves the problems of susceptibility to damage, oil leakage and pollution of the prior turbocharger and overcomes the drawbacks such as high price, large volume and complex structure of electromagnetic suspension bearing exhaust turbocharger.

The invention discloses a steam flooding well production string and an implementation method. The steam flooding well production string comprises a sucker rod, an oil tube, a sleeve, an oil well pump, an overpressure restrictor valve, a safety joint, an insertion pipe bridge plug, a bottom valve, a tail pipe and a pipe plug. The steam flooding well production string is characterized in that the oil tube is in threaded connection with the oil well pump; the lower part of the oil well pump is in threaded connection with a plunger and penetrates into the oil well pump through the oil tube; the oil well pump is in threaded connection with the overpressure restrictor valve through an oil tube nipple; the overpressure restrictor valve is in threaded connection with the safety joint; the safety joint is in threaded connection with the insertion pipe bridge plug; the insertion pipe bridge plug is in threaded connection with the bottom valve through an outer pipe; the bottom valve is threaded connection with the tail pipe; and the lower end of the tail pipe is in threaded connection with the pipe plug. Casual stopping and casual operation of a steam flooding well are achieved, the production time efficiency of the well is improved and the problem of leakage of a kill fluid in the operation process is solved. The steam flooding well production string has the key technology that the steam flooding well production string is provided for achieving crude oil pumping production through structural design and processing of the overpressure restrictor valve, the insertion pipe bridge plug and the insertion pipe bottom valve.

The invention discloses a multi-phase suspension system which is used in the field of foods and is formed by water, oil and solid powder, and a preparation method and application thereof. The multi-phase suspension system of the invention comprises the following components: 45 to 70 percent of edible oil, 1 to 10 percent of water, 10 to 40 percent of edible solid powder, 1 to 5 percent of surface active agent, 2 to 10 percent of stabilizer, 1 to 5 percent of suspending agent, 0.02 to 0.5 percent of antioxidant and 0 to 2 percent of acidity agent. The suspension system has uniformly distributed water, oil and solid powder, stable formed system, and difficultly separated water phase, oil phase and solid phase, thereby effectively preventing the hardening of a rubber sheet and avoiding the appearance of the phenomena of oil leakage and adhesion of soft capsules. Simultaneously, the suspension system has reduced greasy feel, and good taste, and is particularly suitable for the content of a chewable capsule. The multi-phase suspension system of the invention also can be added with flavor substances such as a sweetening agent, an essence and the like to adjust taste and flavor, and to satisfy market demand.

The present invention relates to a concrete pile-forming method used in pile foundation engineering and its pile-forming equipment. Said invention is aimed at solving the problem of forming pile in poor subgrade with high underground water level and thick sand bed. Te invented method is characterized by that at the same time of forcedly injecting concrete, lifting the drill bit to designed height and making secondary diameter expansion, at the same time of opening drill bit plate, starting slurry pump to inject slurry, the height of diameter-expanded body is 800-1000 mm.

The invention relates to an elastic-plastic structure damping support which comprises a supporting module and a damping module. The supporting module comprises an upper top plate, a spherical crown, amiddle lining plate and a lower bottom plate which are arranged in an overlapped manner from top to bottom, wherein sliding faces capable of moving relatively in the longitudinal direction of a bridge and the transverse direction of the bridge are machined between the upper top plate and the spherical crown and between the lower bottom plate and the middle lining plate correspondingly, and the spherical crown and the middle lining plate are in contact connection through a spherical face. The damping module comprises limiting energy consumption assemblies which are arranged in the longitudinaldirection of the bridge and the transverse direction of the bridge correspondingly, wherein the two ends of the limiting energy consumption assembly arranged in the longitudinal direction of the bridge are connected with the upper top plate and the spherical crown correspondingly, and the two ends of the limiting energy consumption assembly arranged in the transverse direction of the bridge are connected with the lower bottom plate and the middle lining plate correspondingly. Compared with the prior art, the elastic-plastic structure clamping support can adapt to telescopic deformation of a main beam under the temperature effect, circular ring parts have an energy consumption effect and a limiting effect, the problems of oil leakage, blockage and the like do not exist, demounting and mounting can be conducted according to practical needs, and daily support maintenance and post-earthquake replacement are facilitated.

The invention discloses an explosion suppression oil tank which comprises a tank, explosion suppression bodies and grid protective covers. The explosion suppression bodies are filled in the tank, the grid protective covers are sleeved on the outsides of oil level sensors, the explosion suppression bodies are of porous structures and are made of aluminum foils which are blocking explosion suppression materials for oil tanks of petrol stations, and a publication patent number of the aluminum foils is CN102181756B; gratings which divide the inside of the tank into more than two cavities are arranged in the tank, and the explosion suppression bodies are arranged in the cavities; an oil filling shield is arranged at an oil filling port of the tank. Compared with the prior art, the explosion suppression oil tank has the advantages that the oil level sensors can be effectively prevented from being jammed by the explosion suppression bodies filled in the tank, and oil through holes are formed in the surface of the oil filling shield, so that oil can smoothly flows into the tank, the explosion suppression bodies can be effectively prevented from jamming the oil filling port, and phenomena of gun jumping and oil spilling can be effectively prevented; a gas expansion degree of the oil tank can be effectively controlled by the explosion suppression bodies, so that the pressure of the inside of the oil tank is low in variation, and explosion can be suppressed.

The invention relates to the field of machinery, in particular to an air flue plate processing device and an air flue plate processing method. The original fully oil pressure driving production line is created into a mechanical production line, an oil pressure type plate shearing machine is modified into a mechanical plate shearing machine, the comprehensive assistance is realized, meanwhile, large openings and small openings are punched, when the cutting is needed, a template needs to be used for punching, an air cylinder shaft of a moving air cylinder extends out, during the descending cutting of a plate shearing upper knife, an upper template is also driven to be downwards pressed and is in contact with a lower template for punching holes. Compared with the prior art, the air flue plate processing device and the air flue plate processing method adopting the technical scheme have the following beneficial effects that the production efficiency is higher than that of the original oil pressure structure; no oil leaks, and an electromagnetic valve cannot be blocked; the cost (including the manufacturing cost and the processing cost) is reduced; the stability and the uniformity of processed products are better, equipment is not influenced by temperature, and the work of the equipment is stable and reliable.

The invention provides a low-pressure anti-seepage device of a gearbox. The low-pressure anti-seepage device comprises a gearbox casing, a transmission shaft system arranged in the casing, lubricating media contained in the casing and used for lubricating the transmission shaft system, a vacuum pump and a control system which are arranged above the casing, a pressure sensor located on the inner wall of the casing and used for detecting pressure in the casing and a porous material rotating disk arranged on the surface of the inner wall of the casing and used for adsorbing the lubricating media. The vacuum pump is arranged on the casing so that pressure in the casing can constantly keep being lower than pressure of the external environment. The porous material rotating disk is arranged at the position corresponding to an air exhaust of the vacuum pump so that the lubricating media can be prevented from being sucked into the external environment. Automatic control on starting and stopping of the vacuum pump can be achieved through the pressure sensor and the control system. Therefore, the low-pressure anti-seepage device has the advantages of being free of oil seepage, not polluting the environment and being capable of achieving automatic control.

The invention provides a polymer power cable insulation acceleration electrical tree aging test method and a device, which relate to a testing device for monitoring polymer power cable insulation electrical tree aging and a method thereof. The device provided by the invention comprises a non-vignetting testing transformer, an induction voltage regulator, a capacitance voltage divider, a testing electrode, a broad band current sensor, an amplification filter, a digital oscillograph, a microcomputer and an electrothermal combined aging oven. The method provided by the invention comprises the following steps: the testing preparation is carried out with the device provided by the invention; a test sample is subjected to local discharge data acquisition and processing through a program; and the image and the basic data of the insulation electrical tree branching of the test sample are obtained through slicing and photographing. The device provided by the invention has the advantages of high pressure resistance and heat resistance level, small amount of self-local discharge, and safe and reliable use. The method provided by the invention has the characteristics of convenient and accurate use, and the like. The invention can be widely applied to the field of monitoring the insulation aging of a power cable, in particular to the field of monitoring the insulation electrical tree agingof a polymer power cable.

The invention discloses a high-precision powder forming machine and relates to the technical field of powder forming machines. A cabinet is arranged at the left half part of the front side of a power forming machine, an electric cabinet is arranged at the right half part of the front side of the powder forming machine, the cabinet is connected with the side edge of the electric cabinet to form the powder forming machine, a side support plate is mounted on the side surface of the cabinet, an overshooting motor and an upper servo motor are mounted in a rack I, a powder flow distributing device is mounted on the side edge of the overshooting motor and located behind the electric cabinet, a vertical linear pressing device is mounted in a rack II, a feeding device is transversely mounted at the side edge of the vertical linear pressing device, an undershooting motor and a lower servo motor are mounted in a rack III. The high-precision powder forming machine has the following benefits: die filling is convenient and quick; the pressure is stable and data display is realized; ultraminiature and irregularly-shaped products can be produced by pressing; adopted operating parts are fully-enclosed, so that potential safety hazards caused during operation are eliminated; the rotational speed is high, the one-outlet multi-mode purpose is achieved, the operation ratio is high, produced dies are low in loss, and products are burr-free; the high-precision powder forming machine can work in a natural environment; the energy consumption is low; oil and material leakage is prevented and no noise is generated.

The invention discloses a sealing structure of an angle grinder gear box lubricated by lubricating oil and an angle grinder. The sealing structure of the angle grinder gear box lubricated by the lubricating oil comprises a shell, a transmission mechanism, a sealing assembly and liquid lubricating oil for lubrication. The transmission mechanism comprises a motor shaft, a driving gear, a driven gearand a driving output shaft, and the motor shaft and the driving output shaft are rotatably supported in the shell. The driving gear is assembled at the end of the motor shaft, the driven gear is assembled on the driving output shaft, and the driving gear and the driven gear are meshed and connected to form a rotary gear pair. The sealing assembly comprises an oil separation pressure reduction ring and a sealing ring, gap sealing is formed between the oil separation pressure reduction ring and the shaft, and contact sealing is achieved between the sealing ring and the shaft. The liquid lubricating oil is used in the gear box for the first time, the liquid lubricating oil can completely infiltrate and fully lubricate the meshed rotary gear pair, effective sealing can be achieved in the working state and the static state of the angle grinder, the sealing effect of the sealing assembly is matched, and therefore the service life of the angle grinder can be remarkably prolonged.

The invention belongs to the field of thrust regulation of an engine, and specifically relates to a variable-thrust regulating electromechanical servo mechanism of a liquid rocket engine. The variable-thrust regulating electromechanical servo mechanism comprises an execution mechanism and a control system. The execution mechanism comprises a DC servo motor, a small gear, a large gear, a harmonic reducer, a small shaft, a large shaft, a butt-joint gripper and a potentiometer. The execution mechanism and a regulator are installed. The control system receives a control instruction and a feedback signal, and a gear shaft rotates according to a motion characteristic specified by the instruction. The technical problem that realization of the variable thrust regulation is difficult in the prior art is solved.

The invention relates to a gear box. The gear box is provided with a box body, wherein a shaft hole is formed in the box body; mounting holes are formed in the periphery of the shaft hole; a plurality of reinforcing ribs are arranged on the inner wall of the box body. The gear box has the advantages of simple structure, convenience for utilization, safety and reliability, convenience for transportation, small size and good sealing performance, and does not cause oil leakage.

The invention relates to an HNBR rubber compound for a dynamic diaphragm sealing element of an oil pump. The HNBR rubber compound comprises the following substances in percentage by weight: 40-55% of hydrogenated nitrile rubber, 1-8% of MPU, 3-10% of a compounding agent, 2-5% of an antioxidant, 25-35% of a reinforcing filler, 3-15% of a softening agent, 1-4% of a vulcanizing agent and 0.1-2% of a vulcanization accelerator. According to the invention, HNBRDN-3418 is adopted as main rubber, and the rubber has good medium resistance and aging resistance, and can ensure basic physical properties required by the rubber material. The most prominent performance of the product is that the oil resistance is excellent under the condition of-20 to 90 DEG C, the volume change rate of Astm standard 901 # oil resistance is within 3% under the condition of 150 DEG C * 70h, and the permanent compression deformation and the dynamic fatigue resistance are very excellent. When the diaphragm is used in methanol diesel for a medium and long term, the small-amplitude dynamic fatigue resistance is excellent, and the service life of the diaphragm seal of the oil pump is prolonged to 181 days from the original 30 days.