727 results about "Oil distribution" patented technology

The invention belongs to the technical field of oil and gas reservoir energy development, and discloses a three-dimensional injection and production well pattern construction method based on a multi-objective algorithm. The problem that the delimited potential area is difficult to effectively use due to the fact that existing potential evaluation is only based on a single index is effectively solved. Comprising the steps that a fault inner core, a fault outer core, a fracture development dense zone and a secondary fracture zone are proposed; carrying out inter-well connectivity analysis on the oil reservoir units by utilizing an oil reservoir engineering method and a numerical simulation streamline method; based on the embedded discrete fracture model, analyzing a remaining oil distribution mode under the control of the nuclear band structure; a multi-parameter comprehensive evaluation system is constructed by combining the remaining oil utilization potential, the displacement power, the flow capacity, the connectivity relation and the reserve abundance; a three-dimensional injection-production well pattern construction technology is formed for an oil reservoir with or without bottom water; based on a multi-objective optimization algorithm, three-dimensional collaborative optimization of the recovery ratio, the well control reserves and the net present value is taken as a core, and a high-efficiency well location deployment technology for different fault zones is constructed.

The invention relates to an oil-cooled motor stator structure which comprises a winding and a stator core, the winding is inserted in the stator core, a cooling sleeve is arranged outside the stator core, a plurality of annular oil ways are arranged in the cooling sleeve, each annular oil way rotates in a reciprocating mode in the axial direction, and the adjacent annular oil ways are communicated with each other. A plurality of oil spraying holes are evenly formed in the outer edges of the two end faces of the cooling sleeve at intervals, the oil spraying holes are distributed in an arc shape, the included angle between the oil spraying holes in the two arc-shaped ends and the circle center ranges from 60 degrees to 180 degrees, and the annular oil ways at the two ends communicate with the oil spraying holes. According to the invention, the cooling sleeve is arranged outside the stator iron core, the annular oil ways rotating in a reciprocating manner along the axial direction are arranged in the cooling sleeve, oil is finally sprayed out from the oil spraying holes, the annular oil ways increase the heat exchange area of the stator iron core, the heat dissipation efficiency is high, and meanwhile, the stator structure is a novel structure with low cost and balanced cooling of the end part; the upper and lower oil distribution paths in the shell can be adjusted by changing the oil inlet, so that the flow resistance difference is reduced, the spraying effect is good, and the adaptability is more flexible.

The invention discloses a residual oil quantitative evaluation method and device, a medium and computing equipment. The method comprises the steps that a ship bottom type remaining oil distribution mode of the homogeneous thin layer bottom water reservoir is determined; obtaining the strong water flooding radius under various bottom water thicknesses in the double-high development stage; obtaining quantitative expressions of remaining oil enrichment areas under various bottom water thicknesses; and obtaining the weak water flooding thickness H of each position of the oil reservoir. The residual oil quantitative evaluation method comprises the following steps: establishing a standard model under different bottom water thicknesses by acquiring strong water flooding radiuses under various bottom water thicknesses in a double-high development stage, and determining a classified bottom water reservoir mixed source displacement mode; aiming at the difficulty in shaping and quantitative description of'ship bottom type 'residual oil, positioning of a potential enrichment area is carried out based on water logging interpretation of a passing well, and rapid quantitative expression of the residual potential area is realized by acquiring quantitative expressions of the residual oil enrichment area under various bottom water thicknesses, so that a reliable basis is provided for accurate potential tapping of residual oil in a double-high stage; and the process is simple and efficient.

The invention discloses an axial ring lower lubricating structure and an aero-engine with the axial ring lower lubricating structure. The axial ring lower lubricating structure comprises a switching oil distribution device, a connecting bearing arranged on the outer circle of the switching oil distribution device and a plurality of oil supply nozzles. The first end of the switching oil distribution device is provided with an oil distribution cavity, the spline section behind the first end of the switching oil distribution device is provided with an inner spline, and an inclined oil conveying channel set and an axial oil conveying channel set are further arranged in the spline section. The oil supply nozzles are used for spraying lubricating oil into the oil distribution cavities, and the oil distribution cavities are used for distributing the lubricating oil so that the lubricating oil can correspondingly enter the oblique oil conveying channel set and the axial oil conveying channel set under the rotating centrifugal effect, and the lubricating oil in the oblique oil conveying channel set can continue to enter the connecting bearing for lubrication under the rotating centrifugal effect. And lubricating oil in the axial oil conveying channel group continues to enter the inner spline for lubrication under the rotating centrifugal effect. According to the structure, the whole lubricating oil system is compact in flow path structure, high in reliability, high in lubricating efficiency and high in function integration degree, and the lubricating and cooling problems of high-DN-value bearings and splines of aero-engines are effectively solved.

The invention discloses a gasket stamping device for an electric automobile gearbox, which belongs to the technical field of stamping equipment and comprises a base, a top plate is arranged at the top of the base, and two groups of conveying mechanisms are arranged at the bottom of the base; the stamping die comprises a lower die and an upper die, and a punching hole and a punching groove are formed in the top of the lower die; the hydraulic driving mechanism comprises an oil storage tank, an oil pump, a reversing valve, an oil distribution tank and a plurality of hydraulic cylinders, the top ends of the hydraulic cylinders are communicated with the oil distribution tank, piston plates are slidably mounted in the hydraulic cylinders, and piston rods are fixedly mounted at the bottoms of the piston plates. Automatic positioning and conveying of a raw material plate can be achieved through the pressing mechanism, the positioning mechanism and the pushing mechanism, automatic punching machining of the plate can be achieved through cooperation of the hydraulic driving mechanism and the punching die, the punching strength can be automatically adjusted according to the thickness of the plate, overload of an oil pump is avoided, and the production efficiency is improved. The applicability of the device is improved.

The invention discloses a remaining oil distribution prediction method and system, a control device and a storage medium, and the method comprises the steps: obtaining a multi-scale fusion feature vector according to wide-area apparent resistivity data, seismic attribute data, optical fiber time sequence signal data, nano tracer tracking data and pore network point cloud data, inputting a physical constraint neural network to obtain a residual oil saturation initial value and a pressure gradient initial value of each region of the target layer, wherein a loss function comprises data fitting item loss, Darcy law physical constraint loss and mass conservation constraint loss; the real-time water content and the bottomhole flowing pressure of the production well serve as observation data, and a static parameter correction value, a remaining oil saturation correction value and a pressure gradient correction value are obtained through correction based on an ensemble Kalman filtering algorithm; the static parameter correction value and the pressure gradient correction value are fed back to a physical constraint neural network for loss function updating; and determining a remaining oil distribution result of the target layer. According to the invention, the accuracy and timeliness of residual oil distribution prediction can be improved.

The invention relates to the technical field of mechanical hydraulic pressure, in particular to a low-pulsation plunger pump with a dynamic variable flow distribution pre-compression angle, the low-pulsation plunger pump with the dynamic variable flow distribution pre-compression angle comprises a plunger pump, a shell and an adjusting piece, the plunger pump is fixedly connected with the shell, an oil distribution cover is fixedly connected in the shell, the oil distribution cover is rotatably connected with a flow distribution plate, and the flow distribution plate is fixedly connected with the shell. A blocking piece is fixedly connected to the surface of the valve plate, a groove is formed in the surface of the oil distribution cover, a push rod is slidably connected into the groove, the blocking piece is connected with the push rod in an inserted mode, the push rod is elastically connected with a limiting plate, the limiting plate is in threaded connection with the adjusting piece through a screw rod, and an oil return opening is formed in the groove and communicated with the interior of the shell. The valve plate has the beneficial effects that in a dynamic balance state, the elastic force of the spring and the hydraulic force are balanced in real time, so that the pre-compression angle is automatically adjusted along with the pressure of the oil discharge kidney-shaped hole, and the pressure transition process is always in an optimal state, so that the valve plate can adapt to the working condition change, and the flow pulsation is effectively inhibited and optimized.

The oil separation structure comprises an oil separation cavity, a driving unit, a connecting unit and a separation unit, the driving unit, the connecting unit and the separation unit are arranged in the oil separation cavity, the driving unit is arranged on the connecting unit and can drive the connecting unit to rotate, and the separation unit is arranged on the connecting unit and can rotate along with the connecting unit; the oil separation cavity is provided with an air inlet, an oil-gas mixture enables the driving unit to rotate through the air inlet, then the separation unit is driven to rotate through the connecting unit, and the separation unit can act on the oil-gas mixture when rotating. The high-speed active rotation of the separation unit provides continuous and strong centrifugal force, so that the centrifugal effect required by oil-gas separation is remarkably enhanced and stabilized, the problems of insufficient centrifugal force and limited separation efficiency caused by the fact that a traditional oil separation pipe only depends on the rotation speed of fluid are solved, the oil-gas separation efficiency is greatly improved, and the service life of the oil-gas separator is prolonged. The low oil content of exhaust gas of the compressor is ensured, and the normal operation performance of an air conditioning system is maintained.

A transfer case includes a mainshaft, an oil distribution device, and a lubricating pump, with the lubricating pump having a pumpshaft offset from the axis of the mainshaft. The transfer case includes a rear housing in which the lubricating pump housing is disposed in radially offset location, where lubricating oil is drawn via suction to the pump housing from a sump at the bottom of the transfer case. The pump pressurizes the oil and delivers the oil via passageways extending between the radially offset pump and the oil distribution device, which surrounds the mainshaft. The passageways may be provided in a manifold block that is fixed to the housing. The manifold block may provide an anti-rotation feature to the oil distribution device, such that drag on the oil distribution device caused by rotation of the mainshaft is counteracted.

The high-pressure steering gear comprises a shell, a valve element and a valve sleeve, the valve sleeve is arranged in the shell, the valve element is arranged on the inner wall of the valve sleeve, the outer wall of the valve element is sleeved with a return torsion spring with a larger steering angle, a metering cycloid rotor stator pair is arranged on one side of the shell, and the metering cycloid rotor stator pair is arranged on the other side of the shell. An oil inlet groove P, a right steering oil groove R, a left steering oil groove L and an oil tank oil return groove T which are communicated with one another are formed in the shell, and double rows of second rotor and stator oil distribution radial holes and first rotor and stator oil distribution radial holes which are independent in left-right steering are formed in the shell. Advanced technologies such as flow amplification, cylinder damping vibration attenuation and wide steering angle are built in. The hydraulic steering gear has the advantages of being higher in power density, small in pressure loss, resistant to pressure impact, stable in steering and the like.

The invention discloses a diaphragm compressor for gas production, and relates to the technical field of wind power hydrogen production. The diaphragm compressor for gas production comprises a base, a motor, a cylinder body and a cylinder cover which are arranged on a diaphragm compressor body, a piston and an oil distribution disc are arranged in the cylinder body, a diaphragm cavity air cylinder and a diaphragm are arranged in the cylinder cover, and an air suction pipe and an exhaust pipe are arranged at the end of the cylinder cover. The diaphragm compressor for gas production further comprises a water vapor removal mechanism arranged at an inlet of the gas suction pipe. According to the diaphragm compressor for gas production, water vapor in hydrogen can be conveniently condensed, removed, discharged and collected, meanwhile, hydrogen escape is avoided, the hydrogen compression quality is guaranteed, hydraulic oil in the cylinder body can be cooled, the use performance of the hydraulic oil is guaranteed, the reliability and performance of a system are guaranteed, and the service life of the system is prolonged. And the diaphragm and other sealing elements can be damaged by high temperature, so that the use effect and the service life are ensured.

The utility model discloses a double-cone oil cavity structure of a high-rotating-speed diaphragm compressor. The double-cone oil cavity structure comprises a cylinder cover and a supporting assembly. The cylinder cover is installed on the supporting assembly, a diaphragm and an oil distribution disc are arranged between the supporting assembly and the cylinder cover, a first oil cavity is formed between the supporting assembly and the bottom of the oil distribution disc, the oil distribution disc is provided with an oil outlet channel, the bottom of the oil distribution disc is provided with a first conical protruding part, a piston hole is formed in the supporting assembly, and a piston is arranged in the piston hole. The top of the piston is in a second cone shape, and the first cone shape and the second cone shape are oppositely arranged. The top of the piston is in the second cone shape, and the first cone-shaped protruding part is arranged at the bottom of the oil distribution disc, so that when the piston moves from a lower dead center to an upper dead center, hydraulic oil can be guided to flow in the first oil cavity in the radial direction, impact of the hydraulic oil on the oil distribution disc is reduced, flow loss of the hydraulic oil is reduced, and the service life of the hydraulic oil is prolonged. Therefore, the cavitation phenomenon is prevented.

The utility model discloses a rapid industrial lubricating oil distribution device, which belongs to the technical field of lubricating oil and comprises a bottom plate, a protection box fixedly connected to the left side of the top of the bottom plate, a second motor fixedly mounted at the bottom of an inner cavity of the protection box, a rotating rod fixedly connected to the output end of the second motor, and a rotating disc fixedly connected to the top of the rotating rod. An L-shaped frame is fixedly connected to one side of the top of the rotary disc, an electric sliding rail is fixedly connected to one side of the L-shaped frame, a sliding table is slidably connected to the inner wall of the electric sliding rail, and a distribution cylinder is fixedly connected to one end of the sliding table. The electric push rod drives the piston plate to move downwards, in the moving process of the piston plate, the intensity of pressure in the distribution cylinder can be increased, lubricating oil can be output from the bottom of the distribution cylinder under the action of the pressure and falls on the surface of a workpiece needing to be lubricated, meanwhile, the amount of the output lubricating oil is read in real time through scales, and the lubricating oil can be accurately output. The condition that the lubricating oil is output too much or too little is prevented, and the purpose of quantitative distribution is achieved.

The invention discloses a pressure limiting protection type integrated aviation plunger pump oil distribution cover assembly. A plug, a filter element, a filter seat, a pressure valve component and a control valve component are sequentially and coaxially arranged in an oil distribution cover. The one-way valve component is communicated with the pump shell and the oil inlet during overpressure; an annular groove is formed in the periphery of the filter element and communicated with a pump outlet, and a filter hole is formed in the radial direction and communicated with the annular groove and an internal oil filter cavity. A boss is arranged at the front end of a valve sleeve of the pressure valve component and tightly attached to the filter seat, and a flow guide groove is formed in the periphery. The flow guide groove at the foremost end is communicated with the oil filter cavity through the boss and a flow channel in the filter seat; a through hole is radially formed in the valve sleeve to communicate the diversion trench with the internal cavity; the valve element is located in the cavity, two annular grooves are formed in the periphery, a blind hole is formed in the front end face and communicated with the annular groove in the front end through the flattened position on the valve element, and a limiting shoulder is arranged at the rear end. The control valve component can apply an axially forward and adjustable force to the valve element. Pressure limiting protection, automatic oil supplementing and adjustable oil pressure can be achieved.

The invention relates to the technical field of artificial intelligence prediction and oilfield development, and discloses a residual oil distribution prediction method based on geological data, comprising the following steps: step 1, acquiring geological data and production data of a target area at n moments; step 2, preprocessing the data obtained in the step 1, and then performing feature extraction and fusion to obtain a fused feature vector; step 3, using an improved XGBoost and convolutional neural network fused hybrid model as a prediction model, and constructing the prediction model; 4, verifying and optimizing a prediction result of the prediction model, and predicting the distribution of the remaining oil through the prediction model; according to the method, the permeability is corrected in the process of obtaining the geological data and the production data of the target area through the first step, the second step and the third step, so that the accuracy of the data is improved, a data foundation is laid for follow-up prediction of the remaining oil distribution, and the remaining oil distribution is better predicted.

An oil supply system, has: an oil tank; a closed-loop oil circuit including a component, a pump having a pump inlet and a pump outlet, and a de-aerator; a make-up flow conduit connecting the oil tank to the closed-loop oil circuit; a make-up pump connected to the closed-loop oil circuit; a recirculation conduit in parallel to the make-up pump and bypassing the make-up pump; a fixed orifice fluidly connected to the make-up flow conduit upstream of the closed-loop oil circuit and downstream of the recirculation conduit, the fixed orifice having an area selected to increase a pressure at an outlet of the make-up pump above a pressure at the de-aerator inlet; and a metering orifice connected on the recirculation conduit and having a flow circulating area selected to reduce a flow rate inputted into the closed-loop oil circuit below a flow rate generated by the make-up pump.

An oil distribution system for an internal combustion engine valvetrain includes a rocker arm base member and a base plate. The rocker arm base member includes a distribution slot disposed into a base lower surface, a plurality of receiving holes extending from a sidewall and / or from the base upper surface of the rocker arm base member into the distribution slot, and a plurality of oil distribution holes passing from the distribution slot through the base upper surface. The base plate being configured to cover at least a portion of the base lower surface including at least a portion of the distribution slot. In operation, the distribution slot receives oil from the plurality of oil receiving holes, passes at least a first portion of the oil to the plurality of oil distribution holes, and the plurality of oil distribution holes discharge at least a second portion of the oil past a base upper surface to provide lubrication to a portion of a rocker arm or other valvetrain components.

The invention discloses degreasing equipment of an air-floating oil-water separator. The degreasing equipment of the air-floating oil-water separator comprises a tank body, a tank cover, a cyclone and a bubble generator, a liquid collecting barrel is arranged in the tank body, and a guide plate which is spirally arranged inwards is arranged in the tank body; the guide plate is at least used for guiding the flowing direction of sewage; the flow guide part comprises a slag solidification part and an oil separation part; an oil scraping component is arranged on the tank cover corresponding to the oil separating part; the oil scraping assembly comprises a guide rail and a sliding assembly; the guide rail comprises an oil scraping part and a reset part, and the extension direction of the oil scraping part is collinear with the inner spiral line of the oil distribution part; the tank cover is correspondingly provided with a protruding block, the distance between the lower end and the higher end of the protruding block is 7-13 cm, the sliding assembly comprises an oil scraping plate, and the oil scraping plate can extend into an oil layer of the air floatation tank by at least 5 cm along with fluctuation of the protruding block. The degreasing equipment of the air-floating oil-water separator has the effect of improving the separation efficiency reduction caused by too long coexistence time of oil layers and water layers.

The utility model discloses an efficient air-cooled oil cooler, which relates to the technical field of oil coolers and comprises an oil cooling shell. The oil cooling shell is in a rectangular frame shape, the inner side of the oil cooling shell is hollow, a plurality of round holes facilitating welding of the oil distribution pipes are formed in the middle of the oil cooling shell, and then fins are welded to the outer side of each oil distribution pipe in a matched mode. A fan is arranged on the side, away from the fins, of the oil cooling shell and fixed to the rear cover through bolts. An oil inlet and an oil outlet are formed in the two ends of the oil cooling shell respectively. According to the utility model, cooling oil enters the oil cooling shell from the oil inlet and flows into each oil distribution pipe through the oil cooling shell, so that the contacted air can be cooled, and the fins welded on the outer sides of the oil distribution pipes can conduct cooling temperature, so that the contact area of the air is increased, the cooling efficiency is improved, and the fan provides power for air suction.

The invention relates to a hydraulic system for testing the performance of a precision hydraulic valve, and belongs to the field of experimental equipment. A hydraulic system for precision hydraulic valve performance testing is characterized in that the hydraulic system comprises a main oil way, an auxiliary oil way, an oil distribution module and an oil storage module, and the main oil way comprises a quantitative hydraulic pump, a pilot overflow valve, a flow regulating valve, a flow sensor and a pressure vibration suppression module; the auxiliary oil way comprises a quantitative hydraulic pump, a pilot overflow valve and a flow regulating valve; the oil distribution module comprises an oil way connecting block and an oil discharge confluence plate; the oil storage module comprises an oil tank, an oil suction filter, an oil return filter and an oil cooler. Modular design is adopted, the modules are connected through the standard hydraulic connectors, a power liquid pressure source and a control liquid pressure source which are stable in flow, pressure and temperature can be provided for a precision hydraulic valve performance test, and the device has the advantages of being high in interchangeability and expandability, convenient to use and stable in performance.

The invention discloses a surface-mounted permanent magnet synchronous motor rotor structure with a cooling flow channel and a motor, and belongs to the technical field of motor rotor cooling. The rotor iron core is sleeved on the rotating shaft and comprises two rotor iron core sections; the oil separation plate is sleeved on the rotating shaft and is positioned between the two rotor iron core sections; and a magnetic steel protection sleeve. In the rotor iron core subsections, the bottom of each magnetic steel groove is provided with an open groove, and N first cooling oil ways are formed by the open grooves and the inner circular surface of the rotor magnetic steel; the outer circle of the rotor magnetic steel is larger than that of the pole shoe, two corners of the rotor magnetic steel are chamfers, and N second cooling oil ways are formed by two adjacent rotor magnetic steel, the pole shoe between the two adjacent rotor magnetic steel and the magnetic steel protective sleeve; 2N oil guide grooves communicating with the rotating shaft oil cavity are formed in the inner circumference of the oil distribution plate and communicate with the 2N cooling oil ways correspondingly. According to the invention, the rotor heating problem of the surface-mounted permanent magnet synchronous motor with the high-temperature alloy protective sleeve during high-power and high-speed operation can be effectively solved.

To provide a solution to a problem with a conventional injection molding system in that the temperature raising operation cannot be optimized in response to changes in operating conditions such as oil temperature, environmental temperature, and idle time of an injection molding machine before temperature raising starts.SOLUTION: An injection molding system according to an embodiment of the present invention comprises: an oil distribution channel; an oil storage tank for storing a hydraulic oil used in a hydraulic cylinder; a hydraulic oil temperature raising mechanism for raising the temperature of the hydraulic oil in the oil storage tank; and a control device for controlling each of a drive mechanism for driving the hydraulic cylinder and a hydraulic oil temperature raising mechanism. The control device sets a heating target temperature defined as a parameter that can be set to an arbitrary value in a temperature range equal to or higher than an operation start temperature, and performs a temperature raising operation of the hydraulic oil with the heating target temperature as the upper limit at least before continuous operation.SELECTED DRAWING: Figure 3

The invention provides a well pattern deployment method based on differential remaining oil distribution in the late period of oil reservoir development, which comprises the following steps: S1, acquiring data of remaining oil space distribution characteristics, S2, calculating the remaining oil reserve distribution of an oil reservoir plane, S3, dividing an oil reservoir into irregular injection-production units with balanced reserves, S4, performing well position deployment of a production well and a water injection well, and S5, performing well position deployment of the production well and the water injection well. And S5, establishing a whole-region injection-production parameter configuration calculation method. According to the method, 3D fine geologic model grid unit data is converted into representation calculation of 2D plane grid units, on the basis of considering underground remaining oil distribution characteristics and according to the seepage mechanics principle, a universal method for determining the infilled well position is formed, and a new technical support is provided for the later period of oil reservoir development.

The invention discloses a novel pump liner grinding machine, and relates to the technical field of plunger pump part machining, the novel pump liner grinding machine comprises a case, a three-jaw chuck, an operation table, a first lifting device, a supporting arm, a motor, a connecting rod, an oil distribution disc expansion tool, an expansion seat support and a second lifting device, and the supporting arm is vertically and fixedly connected with the top of the lifting device; the motor is fixedly connected with the end, away from the lifting device, of the supporting arm. An output shaft of the motor and a center shaft of the three-jaw chuck are collinearly arranged. The top end of the connecting rod is universally connected with an output shaft of the motor, the motor can drive the connecting rod to rotate so as to drive the oil distribution disc to rotate, one end of the expansion seat support is universally connected with the fixed end of the first lifting device, and the middle of the expansion seat support is rotationally connected with the oil distribution disc expansion tool. The adjustable balance weight is arranged at the end, away from the first lifting device, of the expansion seat support so as to adjust the appropriate force applied to the oil distribution disc during grinding, the structure is simple, the grinding work efficiency is effectively improved, and the grinding precision is effectively improved.

The invention relates to the technical field of spraying processes, and discloses an accurate oil distribution method and system for matte spraying, and the method comprises the steps: collecting data through a spectrum analyzer, a color difference meter and an environment temperature and humidity sensor, carrying out the dimension reduction of high-dimensional data to construct a spectral feature vector, and predicting an initial oil distribution ratio through a multi-layer perceptron model; a spraying process rheological characteristic coupling model is constructed based on a measurement result of a dynamic rheometer, oil distribution and spraying parameters are optimized by adopting an improved particle swarm optimization algorithm, and finally, real-time feedback control is realized through a fuzzy PID (Proportion Integration Differentiation) controller. The system comprises a data acquisition module, an oil distribution prediction module, a coupling modeling module, an optimization module and a real-time control module, and all the modules work cooperatively to achieve full-process automation. According to the invention, the precision of matte spraying oil distribution is improved, the environmental adaptability is enhanced, the process synergy is optimized, and the product quality stability and the production efficiency are improved.

The invention relates to an exploitation optimization design method for a high-water-content small reservoir in high-porosity, high-permeability and strong-edge water, and belongs to the technical field of oilfield development. According to the injection-production scheme optimization design method for the strong-edge-water small oil reservoir, numerical simulation is utilized, on the basis of oil reservoir remaining oil distribution characteristic research, through numerical simulation optimization of water injection and polymer injection, the simulation result shows that by means of the injection-production scheme, the recovery efficiency can be effectively improved, the advancing speed of edge water can be restrained, the water-free oil production period of an oil well can be prolonged, and the oil recovery efficiency can be improved. And finally, the oil reservoir recovery efficiency is improved, and a basis and guidance are provided for potential tapping of the remaining oil of the high-porosity, high-permeability and strong-edge-water oil reservoir in the middle-high water content later stage. Wherein the polymer flooding has the effects of controlling the mobility ratio, adjusting the water absorption profile and the like. An injection-production scheme capable of improving the recovery efficiency is provided for the high-water-content small oil reservoir in the high-porosity high-permeability strong-edge water, and technical reference is provided for other oil reservoirs of the same type.

The utility model discloses a high-speed balance oil cylinder installation structure of a machine tool, which comprises a two-way hinge mechanism and a spherical hinge mechanism which are respectively arranged at the middle lower part and the bottom of a balance oil cylinder, two interfaces are arranged at the bottom of a cylinder barrel of the balance oil cylinder, each interface is connected with an oil distribution block through a stainless steel pipe and a ferrule joint, and the oil distribution block is connected with the ball hinge mechanism. The oil distribution block is fixedly connected with the cylinder barrel and connected with the energy accumulator through the hydraulic hose, and the energy accumulator is installed on the side face of the saddle and close to the lower middle portion of the balance oil cylinder. The installation structure can automatically adjust the position of the balance oil cylinder, it is guaranteed that no extra lateral positive pressure is generated between the cylinder barrel and the piston rod of the balance oil cylinder, the friction force needing to be overcome when the piston rod moves is small, the abrasion loss of the cylinder barrel and the piston rod is small, the service life is long, and the installation structure is suitable for the high-speed and high-frequency use environment. The mounting structure is more suitable for high-speed operation of moving parts such as a linear motor, the speed can reach 120 m / min, and the mounting structure is particularly suitable for gravity shaft balance on an efficient machining machine tool for new energy automobile parts.

The invention discloses a lubricating structure for a front integrated type wind power gear box and the wind power gear box, relates to the technical field of wind power gear boxes, and aims to solve the technical problem of lubrication failure caused by large deformation of floating parts of the front integrated type gear box in the prior art. In the lubricating structure for the front integrated wind power gear box, lubricating oil is pumped into an oil inlet of a bearing cover, the oil inlet is connected to an inlet hole of an oil distribution ring through a first oil way, the lubricating oil flows into an interlayer of a hollow pipe through the oil inlet hole, and the hollow pipe is in clearance fit with the inner side of the oil distribution ring; when lubricating oil flows into an interlayer of the hollow pipe, namely the second oil way, all oil can reach an outlet of the second oil way through the annular structure, the outlet of the second oil way is communicated with the oil distribution flange, and the lubricating oil enters an inner hole of the oil distribution flange, namely the third oil way through the oil hole until reaching an unblocked outlet. The fourth oil way is all internal oil ways from the planet carrier to gear lubrication, an inlet of the fourth oil way is communicated with an outlet of the third oil way, and lubricating oil enters from the outlet to reach a gear lubrication point.

The invention relates to the technical field of hydraulic system components, and discloses a high-pressure large-flow rotary oil distribution device which comprises a stator, a rotor, an oil distribution mandrel and a cam ring, the stator is provided with an oil inlet / outlet channel and a radial oil distribution cavity, and a plunger is arranged in the oil distribution cavity; the oil distribution mandrel is provided with two oil through holes which are perpendicular in the radial direction, and the front end gear is in meshing transmission with the fluted disc of the rotor. When the rotor rotates, the fluted disc drives the oil distribution mandrel to rotate accurately, the oil through hole periodically switches on and off of an oil way, the contour surface of the cam ring abuts against the tail end of the plunger to drive the plunger to reciprocate in the oil distribution cavity, and accurate matching of oil distribution action and power transmission is achieved. According to the device, a plurality of oil distribution mandrels are dispersed for bearing, so that the oil distribution mandrels can be designed in a small diameter, the influence of thermal expansion is effectively reduced, the problems of high-pressure leakage, clamping stagnation, low efficiency and the like of an existing device are solved by cooperating with gear synchronous transmission, the device can adapt to different power scenes, the high-pressure large-flow oil distribution requirement is met, the oil distribution efficiency is improved, the service life is prolonged, and the maintenance cost is reduced.

The invention discloses a surface texturing bearing lean oil state lubricating oil distribution prediction method and system, and relates to the field of cylindrical roller bearing surface texturing, and the method comprises the steps: extracting a fluid domain from 1 / n of a simplified geometric model; the fluid domain is subjected to unstructured grid division and then imported into FLUENT software, a lubricating oil density cloud picture and a speed vector diagram in a lean oil state are obtained through the software, and then the oil flow density and the speed distribution condition of an inner raceway contact area of the cylindrical roller bearing containing the surface texture are obtained; and utilizing finite element software to perform fluid-solid coupling on the fluid domain subjected to unstructured mesh division and 1 / n of the simplified geometric model to obtain the oil film thickness of the surface texture, and further obtaining the oil film thickness distribution condition of the surface texture. According to the method, the oil flow density distribution and speed distribution condition of the inner raceway contact area of the cylindrical roller bearing containing the surface texture can be predicted, and the oil film thickness distribution condition of the surface texture can be predicted.