21 results about "Lubrication Problem" patented technology

The utility model relates to the technical field of kiln equipment in the chemical industry, in particular to a device suitable for lubricating a rolling ring of a magnesium oxide calcining kiln, which comprises a support, a guide cylinder is vertically arranged on the support, a graphite block is slidably arranged in the guide cylinder, and the bottom of the graphite block is in frictional contact with a riding wheel. The guide cylinder is further provided with a spring pre-tightening mechanism used for elastically driving the graphite block to move downwards. Under the dual action of the self weight of the graphite block and the spring pre-tightening mechanism, the graphite block rubs with the riding wheel to generate graphite lubricating powder, so that the contact surface of the rolling ring and the riding wheel is lubricated; the device fully solves the lubrication problem between the rolling ring and the riding wheel of the kiln, high-temperature lubricating grease is replaced as a lubricant, the graphite block is convenient to replace after being abraded, the surrounding environment of equipment is effectively protected, the capital investment is reduced, and the consumption of the high-temperature lubricating grease is reduced.

The invention discloses a graphene composite lubricating additive as well as a preparation method and application thereof, and belongs to the technical field of lubricating additive preparation. Modified graphene, nano molybdenum disulfide, a dispersing agent and thiophosphate amine salt are mixed and react to obtain the graphene composite lubricating additive. According to the invention, a triple synergistic stabilization mechanism of chemical anchoring, physical blocking and steric hindrance is utilized, so that the compatibility of graphene and base oil is improved, and the dispersion stability of the graphene composite lubricating additive is improved. Meanwhile, the prepared graphene composite lubricating additive can reduce the temperature of a friction pair, can form a friction reaction film containing C, Mo, P and O elements on the surface of the friction pair, reduces friction wear, shows good friction reduction and wear resistance, provides a theoretical basis and technical support for development of high-performance lubricating oil additives and application of high-temperature working conditions, and has wide application prospects. And the high-temperature lubrication problem of the marine diesel engine is solved, and remarkable engineering value and application prospects are achieved.

The utility model discloses a die blowing cooling lubrication device for a die forging hydraulic press, which comprises a spray head, a support, a hydraulic cylinder and a guide pillar, the spray head is mounted on the support and positioned above the support, the hydraulic cylinder is fixed on a centering device through a fixed support, and the telescopic end of the hydraulic cylinder is connected with the support through a pin shaft. The guide pillar is fixed on the centering device through a trunnion support, and one end of the guide pillar is fixedly mounted on the bracket; the spray head is of a circular ring structure and comprises at least one liquid pipeline and at least one gas pipeline which are concentrically arranged, the two pipelines are in one-to-one correspondence, and when a plurality of liquid pipelines and a plurality of gas pipelines are arranged, the liquid pipelines are communicated, and the gas pipelines are communicated; a plurality of liquid path nozzles are uniformly arranged on the two sides of each liquid pipeline respectively, and a plurality of gas path nozzles are uniformly arranged on the two sides of each gas pipeline respectively. Abrasion and fatigue of the surface of the die can be reduced, the problems of die purging, cooling and lubricating are solved, working efficiency is improved, and the service life of the die is prolonged.

The utility model discloses a built-in lubricating mechanism of a wind power gear box, which belongs to the technical field of gear boxes and comprises a box body, and two groups of planetary gears are arranged in the box body and are respectively limited and mounted by a first planetary carrier and a second planetary carrier; the first planet carrier is divided into two end faces which are fixedly connected through a first connecting rod, a first oil conveying pipe is arranged in the first connecting rod, and a first nozzle and a second nozzle are arranged on the first oil conveying pipe. The second planet carrier is divided into two end faces which are fixedly connected through a second connecting rod, a second oil conveying pipe is arranged in the second connecting rod, and a third nozzle and a fourth nozzle are arranged on the second oil conveying pipe. By means of the planet carrier built-in oil way and the active pumping and spraying system, the lubrication problem of the wind power gear box under the high-speed and inclined working conditions is thoroughly solved, reliability is remarkably improved, and operation and maintenance cost is reduced.

The invention provides a gearbox system and a vehicle with the same. The gearbox system comprises a shell and a differential assembly, and the shell is provided with at least one containing cavity. The differential mechanism assembly is arranged in the containing cavity through a bearing and comprises a differential mechanism shell and a planetary gear system, the differential mechanism shell at least comprises a first shell and a second shell, a differential mechanism inner cavity is defined by the first shell, a differential mechanism outer cavity is defined by the first shell and the second shell, and a first opening is formed in the second shell; the differential outer cavity communicates with the containing cavity through the first opening, the planetary gear train at least comprises a sun gear and a first planet gear, the sun gear is arranged in the differential outer cavity and connected with the input shaft, and at least part of the first planet gear penetrates through the first opening to be located in the containing cavity; an oil inlet channel is formed in the first shell, one end of the oil inlet channel is arranged close to the meshing position of the sun gear and the first planet gear, and the other end of the oil inlet channel is communicated with an inner cavity of the differential mechanism. The lubrication problem of the planetary gearbox is solved.

The utility model relates to a stainless steel permanent magnet no-leakage magnetic force pump belongs to magnetic force pump technical field, in order to solve the work of the mode of self cooling, lubrication, if conveying high temperature clear water, can influence pump body's self cooling, lubrication, easily lead to equipment life reduction, simultaneously, when self cooling, lubrication, the impurity in water can cause wear and tear and blockage to rotating position, make pump body difficult to effectively realize safe and stable self cooling, lubrication problem, the utility model discloses power motor and the pump body shell of setting in power motor front end, the output of power motor is fixed with outer magnetic rotor, the inside middle part of pump body shell is fixed with the spacer sleeve, the utility model can avoid the problem that high temperature water or turbid water causes damage to inner magnetic rotor and connecting shaft when self cooling, lubrication, to carry out automatic protection, simultaneously, avoid the problem that the separate use of external cooling circulation equipment carries out the continuous circulation cooling, can increase the consumption of external equipment and energy.

The utility model provides variable-frequency-driven constant-tension winding and unwinding electrical mechanical equipment, which belongs to the technical field of electrical machinery and comprises a bearing mechanism, a bearing frame, a driving component arranged in an inner cavity of the bearing frame and a winding and unwinding component arranged at the top of the bearing frame. The lubricating mechanism comprises a storage box fixedly installed on the top of the bearing frame, an adjusting support fixedly installed on the top of the storage box, an extraction hose fixedly installed on the outer side of the storage box and an oil injection piece arranged on the outer side of the adjusting support. The oil injection piece comprises a pipe body fixedly installed at the position of a rotating shaft on the outer side of the adjusting support, an illuminating lamp fixedly installed at the top of the pipe body and a telescopic hollow rod fixedly installed at the end of the pipe body. Through the synergistic effect of the lubricating mechanism and the oil injection piece, the problems of abrasion, extension, tooth skipping and the like of a chain transmission part caused by the lubricating problem are effectively solved, and constant tension control and stable operation of equipment are guaranteed.

The utility model provides a grinding roller connecting device of a medium-speed coal mill, which relates to the technical field of coal mills for thermal power generation and comprises a connecting support and a pin shaft, the pin shaft is hollow inside and is provided with an oil discharge hole for communicating the inner side and the outer side of the pin shaft, one side of the connecting support is provided with an oil supplementing tank, and the other side of the connecting support is provided with an oil discharging hole for communicating the inner side and the outer side of the pin shaft. A piston plate is slidably connected into the oil supplementing tank, a tank opening of the oil supplementing tank faces the pin shaft, and when the micro motor drives the lead screw to rotate, the piston plate is driven to move, lubricating oil in the oil supplementing tank is pushed to enter an internal gap of the pin shaft through the lip sleeve and then reach the outer side of the pin shaft through the oil discharging hole, and continuous lubrication between the pin shaft and a connecting part is achieved. The lubrication problem caused by the fact that pulverized coal absorbs lubricating oil is effectively solved.

The invention relates to a ball-cone friction pair oil film thickness measurement test bench comprising a ball-cone friction pair composed of a ball base surface roller and a transparent cone disc; a support mechanism; the conical disc driving mechanism is mounted on the supporting mechanism and is used for driving the conical disc; the spherical base surface roller driving mechanism is mounted in the supporting mechanism and is used for driving a spherical base surface roller; the optical measurement module is used for measuring the thickness of a lubricating oil film in a contact area of the ball-cone friction pair; and the contact adjusting mechanism comprises an angle adjusting part, the execution tail end of the angle adjusting part is connected with the spherical base plane roller driving mechanism, and the angle adjusting part is used for adjusting the contact angle between the spherical base plane roller and the conical disc. According to the invention, through the arrangement of the contact adjusting mechanism, the contact angle between the ball and the cone is adjustable, and the defect that the geometrical relationship of a contact pair is fixed in the prior art is overcome, so that the problem of contact lubrication at different angles can be simulated and researched, and the working condition coverage range and the application value of the test bed are expanded.

This utility model discloses an external circulating water cooling system for a ball mill, including a cooling oil circuit assembly, an oil temperature monitoring module, a ball mill reducer, and an equipment foundation. The cooling oil circuit assembly is connected to the ball mill reducer via pipelines. The oil temperature monitoring module is installed at the oil inlet of the ball mill reducer. The ball mill reducer is fixedly installed on the upper end of the equipment foundation. By combining the cooling oil circuit assembly with the ball mill reducer, cold water circulation is used to cool the lubricating oil, effectively reducing the temperature of the lubricating oil and avoiding the problem of lubricating oil aging and deterioration caused by excessive oil temperature, thus extending the service life of the lubricating oil. At the same time, the oil temperature monitoring module can monitor the oil temperature in real time, facilitating timely adjustment of the cooling intensity and ensuring lubrication effect. This utility model further improves the stability and reliability of the system, reduces ball mill failures caused by lubrication problems, lowers maintenance costs, and improves equipment operating efficiency.

The application relates to a machine oil for a hydrogen fuel internal combustion engine and a preparation method thereof, wherein the machine oil for the hydrogen fuel internal combustion engine comprises, in terms of mass fraction, 89-92% of synthetic base oil, 1.2-2.5% of tackifier, 2.2-3.8% of emulsifier and foam stabilizer together, 0.5-0.8% of friction modifier, and 2.15-4.1% of antioxidant and antinitrating agent together. The application provides a machine oil for a hydrogen fuel internal combustion engine and a preparation method thereof, changes a traditional machine oil formula idea according to the hydrogen fuel characteristics, selects and optimizes the type and proportion of the synthetic base oil and the additive, makes the machine oil and water in a wide range of proportions to form a stable and uniform emulsion after mixing, improves the emulsion performance, and prolongs the oil change cycle. The application solves the lubrication problem of the hydrogen fuel engine, provides strong support for mass production of the hydrogen fuel internal combustion engine, and accelerates the carbon neutralization pace of the internal combustion engine.

The invention belongs to the technical field of coal mining machine walking box lubrication, and discloses a maintenance-free drum type coal mining machine walking box which is characterized in that an integrated intelligent lubrication system is adopted to replace a traditional manual oil injection mode, and the coal mining machine walking box is connected with an automatic grease injection device through a grease injection pipeline; a driving wheel coal wall side bearing, a driving wheel old pond side bearing and an idle wheel bearing are lubricated, and maintenance-free operation of the walking box of the coal mining machine in the production process is achieved; a lubricating groove provided with an oil dripping device is machined in the top of the walking box shell, an oil dripping lubricating device is integrated, and the problem that gears are seriously abraded due to poor lubrication is solved. The self-lubricating bearing is adopted for solving the problem that the lubricating grease filling work of the walking wheel assembly is difficult to operate, the lubricating problem under the complex working condition is solved, the self-lubricating bearing is selected in the walking wheel assembly, and manual oil filling can be omitted.

The application discloses a high-volume-fraction aluminum-based silicon carbide composite sheet and a die forging-extrusion combined forming method, which integrates semi-solid slurry preparation, high-pressure liquid die forging and near-liquidus continuous extrusion processes. The core innovation point is that a hard alloy die with a built-in self-lubricating phase is used to solve the lubrication problem of long-size continuous extrusion; through the "extrusion-replenishment" cycle process, new slurry is replenished when the extrusion amount reaches 2 / 3 of the single injection amount, breaking through the equipment stroke limit, and ultra-long components of more than 5m can be prepared. The process can simultaneously realize material densification, matrix grain refinement and SiC particle axial directional arrangement in one forming. The prepared sheet has a width of more than or equal to 200mm, a thickness of 3-10mm, no internal defects, SiC particles in streamline distribution, a plane thermal conductivity of more than or equal to 175W / (m*K), a tensile strength of more than or equal to 395MPa and an adjustable thermal expansion coefficient. The process is short, efficient and has a long die service life, and is suitable for batch production of large-size heat dissipation backplanes in the fields of 5G communication and high-performance computing.

The invention relates to a power head, in particular to a bidirectional lubricating and cooling assembly for the power head, and solves the problem of bidirectional lubrication of the power head. Comprising a power head, a lubricating pipeline and a lubricating pump connected into the lubricating pipeline, and further comprises a plunger motor, a filter and a cooling piece, the plunger motor is in gear transmission connection with the power head, the plunger motor and the lubricating pump are assembled in a linkage mode, and a shell and a box body of a gearbox are arranged outside the power head. The lubricating pipeline is at least provided with a spraying opening communicated with the power head and the box body, and the filter and the cooling piece are connected into the lubricating pipeline. The filter is provided with a filter screen, and the filter is connected with a spraying opening in the box body. The novel lubricating oil pump researched and developed according to the market is characterized in that when a pump shaft rotates forwards and backwards, an oil inlet and an oil outlet are not changed, oil can be equivalently supplied to the same direction, gas performance is achieved, the weight is light, noise is low, the service life is long, and the working efficiency problem of replacing the oil inlet and the oil outlet forwards and backwards is solved.

The utility model discloses a speed reducer, water cooling electric drive system and new energy vehicle, speed reducer includes: speed reducer casing, differential mechanism and oil guide cover plate, the oil guide cover plate is detachably installed between speed reducer casing and differential mechanism, differential mechanism includes differential mechanism bearing, oil guide cover plate includes working face and non-working face, and the working face and the non-working face are connected to each other. The non-working surface faces the differential mechanism, the working surface faces the speed reducer shell, a variable-cross-section bidirectional spiral oil guide groove is formed in the working surface, and an oil outlet of the bidirectional spiral oil guide groove faces the differential mechanism bearing, so that directional oil guide lubrication of the differential mechanism bearing is achieved. The bearing lubricating device has the advantages of being compact in structure, convenient to disassemble and assemble, good in lubricating effect and the like, solves the lubricating problem of a differential bearing, and well meets the bearing lubricating requirement of a water-cooling electric drive system under the two-way drive working condition.

The utility model discloses an active oil return system and an electric compressor, belongs to the technical field of compressors, and aims to solve the problem of poor lubrication easily caused by a passive lubrication mode of an existing compressor. According to the technical scheme, an oil pool is formed in the bottom of the inner wall of the cylinder body, an air inlet cavity communicated with the interior of the cylinder body is formed in one side of the cylinder body, an eccentric oil pump is arranged in the air inlet cavity, a main shaft is arranged in the cylinder body, the eccentric oil pump is driven by the main shaft, and an inlet of the eccentric oil pump is communicated with the oil pool; according to the active oil return system, oil is accurately supplied according to actual requirements to achieve active lubrication, the situation that lubrication is insufficient or uneven is reduced, the failure probability in the operation process of the electric compressor is remarkably reduced, the service life of the electric compressor is prolonged, and the service life of the electric compressor is prolonged. And high-efficiency, stable and long-term operation is ensured.

The utility model discloses a self-lubricating noise-reducing wear-resisting mechanical hoisting pulley which comprises an installation frame, a driving mechanism is fixedly installed on one side of the installation frame, a supply mechanism is fixedly installed on the top of the installation frame, and a stirring mechanism is installed at the output end of the driving mechanism. By the adoption of the structure, the feeding mechanism and the stirring mechanism are cooperatively matched, the problem of manual lubrication of a traditional hoisting pulley can be solved, an electromagnetic valve is started during lubrication, a pulley body drives a rotating shaft to rotate during operation of the device, a gear transmission system drives an auger on the surface of an inner shaft body to rotate, and negative pressure suction force is generated in a discharging pipe; lubricating oil is conveyed from the tank body to key parts of the pulley body and the rotating shaft, automatic lubrication is achieved, daily maintenance only needs to regularly supplement the lubricating oil to the tank body through the feeding pipe, manual high-altitude operation is not needed, the lubricating process is simplified, convenience and safety are improved, maintenance cost and operation risks are reduced, and efficient operation of the device is guaranteed.

The invention discloses a control method of a variable servo pump. The control method of the variable servo pump comprises the following steps that a logical judgment is added in a pressure closed loop of the variable servo pump, and the variable servo pump is controlled; and the pressure closed loop of the variable servo pump is switched back to a normal closed loop control state, so that the speed control of the variable servo pump is realized. The control method of the variable servo pump can ensure that the response state of the hydraulic system is not influenced when a plurality of actuating mechanisms of some systems need to act simultaneously and a large flow demand occurs, ensures that the variable servo pump does not have the self-lubrication problem when the rotating speed is extremely low, prolongs the service life of the variable servo pump, and improves the working efficiency. Therefore, the speed control of the variable servo pump taking the pressure as a closed loop is realized.

The utility model discloses a new energy magnetic suspension motor bearing, including setting up first bearing and second bearing in one end of motor shaft, first bearing with second bearing adopts DF matching installation, setting up third bearing in the other end of motor shaft, first bearing, second bearing and third bearing outer surface all coat MoS2 coating. Relative to prior art, this motor bearing realizes efficient axial and radial bearing and positioning, solves the lubrication problem under high speed high temperature environment simultaneously, improves the operation efficiency, stability and service life of magnetic suspension motor.

The application provides a vertical shaft support structure suitable for magnetic coupling sealing, wherein: a pump shaft and a motor output shaft are coaxially connected through a magnetic coupling shaft coupling assembly; the upper journal of the pump shaft is supported by a rolling bearing assembly, and the lower journal of the pump shaft is supported by a guide bearing assembly; the rolling bearing assembly is lubricated through a lubricating assembly; the guide bearing assembly and an impeller are always immersed in high-temperature liquid working medium in a pump shell; the magnetic coupling shaft coupling assembly, the rolling bearing assembly and the lubricating assembly are always isolated from the working medium; the guide bearing assembly is on the working surface side of the impeller and comprises a shaft sleeve and a bearing bush; the outer peripheral wall of the shaft sleeve is provided with a spiral groove; and the outer peripheral wall of the shaft sleeve above the spiral groove serves as a liquid sealing table. The application effectively solves the lubrication problem of the upper bearing of a magnetic drive pump, and the lower guide bearing assembly has the characteristics of simple structure and excellent support performance, and can be well adapted to the pump system in the scene of high-temperature molten metal, high-temperature molten salt and high-temperature chemical materials.

The invention belongs to the technical field of lubricating grease, and particularly relates to special lubricating grease for an ultralow-temperature petroleum pipe electric control valve worm reducer and a preparation method thereof. The lubricating grease comprises the following components in percentage by mass: 81%-85% of base oil; 3%-4% of a thickening agent 1, wherein the thickening agent 1 is quaternary ammonium salt modified montmorillonite; 1.5%-2% of a thickening agent 2, wherein the thickening agent 2 is hydroxyl magnesium silicate; 1.5%-2% of a dispersing aid; 4%-5% of an anti-wear agent; the anti-wear agent is a mixture of tricresyl phosphate and potassium borate in a mass ratio of (4.5-5): 5.5; the solid extreme pressure agent is superfine heavy calcium carbonate, and the particle sizes of the solid extreme pressure agent and the superfine heavy calcium carbonate are required to be D50: 1.5 mu m and D97: 5 mu m; 0.5%-1.0% of an antioxidant, wherein the antioxidant is 2-tert-butyl-5-pentadecyl phenol; 0.15%-0.30% of a metal deactivator, namely a metal deactivator T581; the antirust agent is ultrahigh base number petroleum calcium sulfonate, and the TBN is greater than or equal to 395mgKOH / g. The invention solves the problem of lubricating the steel-copper friction pair, and is suitable for starting and lubricating equipment in low-temperature areas.