294results about How to "Ensure adequate lubrication" patented technology

The invention discloses an ultrasonic elliptical vibration extrusion device and a vibration extrusion processing method for carrying out surface finishing of a part by using the same. The ultrasonic elliptical vibration extrusion device comprises an amplitude transformer, four excitation sources with the same structure and an extrusion tool, wherein the extrusion tool is arranged on the output section of the amplitude transformer; and the four excitation sources are respectively arranged in the four grooves of the excitation section of the amplitude transformer. In the vibration extrusion processing process, an extrusion head makes the ultrasonic vibration in an elliptic orbit relative to the processed surface of the part under the driving of the excitation sources through adjusting an extrusion contact angle between the part and the diamond extrusion head and the processing parameters of ultrasonic elliptical vibration extrusion device. On one hand, the device reduces an extrusion force by utilizing the pulse impact action of the ultrasonic vibration, and thereby, the extrusion process can be applied to thin-wall parts and long and thin parts; on the other hand, the front direct impact is avoided and the sliding friction of the extrusion head and the processed surface of the part is reduced even eliminated by utilizing the separation characteristic and the movement locus characteristic of the elliptical vibration, and thereby, the surface roughness of the processed surface of the part is reduced, and the service life of the extrusion head is prolonged.

The invention relates to a quasi-dry cutting liquid supply device, which comprises a plurality of chamber walls, a chamber, a partition, an adjusting valve, a hybrid chamber, a drain pipe, a liquid guide pipe, an inner pipe, an outer pipe, an inlet for compressed gas, and a nozzle; wherein, the partition divides the chamber into two sub-chambers for respectively holding different lubricants, which enter the pipeline under the action of the compressed gas, and the quantity of the lubricants can be selected by means of the adjusting valve; the inner pipe and the outer pipe form a double-layer tubular structure, and the nozzle also adopts a double-layer structure. The device can be used as a liquid supply device for oil-less lubrication, low temperature cutting, and liquid nitrogen cooling and process, and can regulate the usage quantity of the lubricants in a reasonable manner. The liquid supply device in the invention has the advantages of simple structure, low costs, less resource consumption, and suitability for mass production. Moreover, by using the nuisance and pollution-free green lubricants, the liquid supply device effectively solves the problems in the prior liquid supply systems, such as large usage of cutting liquid, difficulty in controlling, and severe environmental pollutions.

The invention relates to the field of lubricating grease, and particularly relates to environment-friendly water-based lubricating grease and a preparation method thereof. The water-based lubricating grease comprises the following components in percentage by mass: 65-90% of basic liquid, a mixed base thickening agent, 0.5-3% of extreme-pressure anti-wear additive and 0.02-2% of antirust agent, wherein the basic liquid is a mixture of water-soluble polyether and distilled water, and the mixed base thickening agent is generated by reaction of 1-4% of calcium hydroxide and 0.5-1.5% of sodium hydroxide with 6.5-24.5% of stearic acid. The water-based lubricating grease prepared by the method has the advantages of full lubrication and adhesion, good heat transfer and cooling effect and easy cleaning operation and is particularly suitable for occasions such as metal stamping and extrusion machining, metal rolling, metal wire drawing and metal pipeline machining.

The invention discloses a plastic motor case and bearing device installing method, where the bearing device comprises gland, oil containing bearing and oiled felt, and the method comprises the steps of: 1) firstly injection-moulding a plastic motor case with bearing cavity for reserving; and II) placing the oil-containing bearing and oiled felt in the bearing cavity, and then fixing the gland on the bearing room to fix them in the bearing cavity. And it has advantages of simple process, low manufacturing cost, coaxial matching, low operating heat and long service life.

An abrasing liquid for abrasing the back of magnetic head for hard disc contains proportionally mineral oil containing C11-C13 alkane, oiling agent, superfine monocrystal diamond powder, antioxidizing anticorrosion agent, non-ionic surfactant, defoaming agent, and antistatic agent.

The ultrasonic elliptically vibrating boring process in the field of precise machining technology includes the following steps: 1) adhering two piezoelectric ceramic chips onto two orthogonal surfaces of elliptically vibrating amplitude-varying rod; 2) applying sinusoidal voltage across the chips to make the chips to stretch and contract and the rod to bend and vibrate; 3) strengthening the bending and vibration of the rod; 4) making the boring cutter fixed to the tip of the rod obtain maximum elliptic vibration; 5) synthesizing the horizontal and vertical bending vibrations to obtain the elliptic vibration track in the edge of the boring cutter; and 6) fixing the elliptically vibrating amplitude-varying rod onto the boring rod via the vibration node. The present invention has greatly reduced boring force, reduced boring rod deformation, raised stability of the boring system and raised boring precision and surface smoothness.

The invention discloses a special anti-bonding low-smoke halogen-free flame-retardant sheath material for a GJFJZY type multi-core indoor optical cable. The sheath material comprises the following components in parts by weight: 5-15 parts of ethylene-vinyl acetate copolymer (EVA), 10-20 parts of polyethylene (PE), 5-10 parts of polypropylene (PP), 55-65 parts of flame retardant, 5-10 parts of compatilizer, 2-3 parts of ultra-high molecular weight silicone, 0.5-1.5 parts of high-melting-point polyethylene wax and 0.3-0.8 part of antioxidant. The PE and the PP having high melting points are used as base materials; a small amount of EVA is further used; the flame retardant is added to achieve the flame-retardant effect; meanwhile, the ultra-high molecular weight silicone is used as internal and external lubricant to improve the material flowability and the powder dispersion effect, the use amount is increased, and the ultra-high molecular weight ensures that no precipitation exists in resin; the high-melting-point polyethylene wax is further used as external lubricant, and the high melting point ensures that sufficient lubrication action exists at high temperature and no precipitation exists on the surface early at low temperature so as to further avoid inactivation, thus realizing that a thin wax layer is formed between a core wire and a sheath layer in the extruding process at about 160 DEG C and serves as an isolating layer; and the core wire and the sheath layer disclosed by the invention have great difference in material, thereby finally ensuring that the both can not be bonded together. Thus, the normal use of a GJFJZY type multi-core optical cable is ensured.

An oil circulation system for electric motors in a hybrid electric vehicle having, as a power source, an internal combustion engine is disclosed. Provision is made to start oil circulation under high reliability even though an electric pump cannot circulate lubricant oil through the electric motors due to increased viscosity at low temperatures. The oil circulation system includes the electric pump in fluid communication with an oil flow path for the electric motors;a mechanical pump, in fluid communication with the oil flow path, operable on driving power of the engine;and a controller for control of operation of the electric pump and that of the mechanical pump. The controller utilizes operation of the mechanical pump upon detection of abnormality in operation of the electric pump derived from viscosity of the lubricant oil in order to recover the electric pump.

The invention relates to the field of oil equipment, particularly to a novel sucker rod coupling and a production process thereof. The novel sucker rod coupling comprises a main body, the main body is a hollow cylinder, the middle of the hollow cylinder is provided with square-neck surfaces matched with a double-edge wrench, the two square-neck surfaces are parallel, and the middle of the main body is provided with an axial internal threaded hole. The novel sucker rod coupling is characterized in that the outer surface of the main body is partially or totally covered with copper-based alloy composite coating, which is composed of, by weight percentage, 10-50% of hard tungsten carbide (WC) particles and 50-90% of copper-based alloy powder. According to the novel sucker rod coupling, the copper-based alloy composite coating and nickel-based alloy coating at both ends of the outer surface of the coupling are connected through transitional sections to ensure continuity and high quality and further to achieve obvious prolonging of the service life and long-term protection on the inner wall of a sucker rod.

The invention relates to a self-lubricating vertical orientating vibrating wheel structure subjected to counterweight by using a liquid. The self-lubricating vertical orientating vibrating wheel structure comprises a vibrating wheel, a vibration exciter cylinder, a transmission shaft and a cylinder-shaped gear box, wherein a first forwards-rotating eccentric wheel, a backwards-rotating eccentric wheel and a second forwards-rotating eccentric wheel are sequentially arranged along the axial length direction of the transmission shaft, the backwards-rotating eccentric wheel and the first forwards-rotating eccentric wheel are connected with each other through a change gear set; the cylinder-shaped gear box is provided with a gear cavity and an eccentric wheel cavity corresponding to the change gear set and the first forwards-rotating eccentric wheel; the upper end of the cylinder-shaped gear box is provided with a lubricating flow channel, and the lower end of the cylinder-shaped gear box is provided with a liquid outlet; the vibration exciter cylinder is peripherally provided with oil boxes used for rain falling lubrication corresponding to the inner walls of cylinder cavities positioned on the positions of the cylinder-shaped gear box, the second forwards-rotating eccentric wheel and the backwards-rotating eccentric wheel; and the outer wall of the vibration exciter cylinder, the inner wall of the vibrating wheel and ring plates positioned on two ends of the vibrating wheel are encircled to form a sealing cavity used for filling a counterweight liquid together. The self-lubricating vertical orientating vibrating wheel structure disclosed by the invention achieves the sufficient lubrication effect of various bearings and gears inside equipment and can realize the purposes of counterweight and high-efficiency radiation of the vibrating wheel through the counterweight liquid.

The invention provides a thrust bearing and a lubricating device thereof. The thrust bearing comprises a shaft washer, a housing washer and a rolling body between the shaft washer and the housing washer, and is characterized in that an oil pumping device is arranged on the outer side of the shaft washer. The lubricating device of the thrust bearing comprises a shaft, a radial bearing and a bearing pedestal, and is characterized in that the bearing pedestal is provided with an oil inlet in one side of the bearing and is provided with an oil outlet in the other side of the bearing; the oil inlet and the oil outlet are respectively connected with an oil tube; one end of an oil inlet tube is connected with a cooling device, one end of an oil outlet tube is connected with a magnetic filter, and the cooling device is communicated with the magnetic filter. Therefore, lubricating oil can be continuously supplied to the bearing through the oil pumping device, the temperature of the lubricating oil can be controlled within a certain range through the cooling device, and the lubricating oil passing through a coiled pipe in a water tank is filtered through the magnetic filter, is cooled and then returns inside the bearing pedestal, so that the high temperature of the bearing rotating at high speed can be effectively reduced, the lubricating oil is cleaned through the magnetic filler, the friction force of the bearing is reduced, and the service life of the bearing is prolonged.

Embodiments of the invention provide a drilling, drill-in, and completion water-based mud composition containing micro or nanoparticles for use in hydrocarbon drilling. In accordance with at least one embodiment, there is provided a method of drilling a hydrocarbon formation, including contacting the hydrocarbon formation with a water-based drilling mud composition while drilling or completing a well. In accordance with at least one embodiment, the water-based drilling mud composition includes water, the water being present in an amount greater than about 90 wt % of the water-based drilling mud composition to maintain flowability of the water-based drilling mud composition; drilling mud, the drilling mud comprising particles, wherein the particles are selected from the group consisting of microparticles, nanoparticles, and combinations thereof; and a multi-functional mud additive in an amount of 0.8 wt % of the water-based drilling mud composition, the multi-functional mud additive comprising psyllium husk powder, such that the water-based drilling mud composition is operable to keep the particles stabilized and dispersed throughout the drilling mud composition in the absence of a surfactant.

The invention discloses a lubricating device of a bearing which comprises an axle, a bearing, a bearing block and an oil tank, wherein the bearing is arranged on the axle; the lubricating device is characterized in that at least one side of the bearing is provided with an oil suction device along the axle direction; the bearing block is provided with an oil inlet and an oil outlet at one side of the axle provided with a worm gear and at the opposite side respectively; the oil inlet and the oil outlet are respectively connected with the oil tank by an oil pipe; the lubricating device has the advantages that lubricant can be continuously supplied and added again without dismantling an assembled bearing, thus being convenient, saving time, increasing production efficiency and guaranteeing thebearing to be fully lubricated; simultaneously by the rotation of the worm gear, oil can circulate in the whole device, enter the oil tank from an oil inlet pipe and return to the oil tank again froman oil outlet pipe; heat generated by the oil that the oil tank gives off is utilized for reducing high temperature caused by high-speed rotation of the axle, thus reducing friction and prolonging the service life of the axle; moreover the lubricating device has simple structure, convenient operation and is particularly applicable to devices with large bearings.

Disclosed is a starting and stopping control system for an electronic fuel injection engine of an excavator. The starting and stopping control system comprises an engine, an ECM, an ECU, a display instrument, a key switch, a revolving speed sensor, a water temperature sensor, a throttle dial, a starting relay, a stopping relay and a starting motor. The throttle dial is connected with the ECU. The key switch is connected with the ECU through a wire. The display instrument is connected with the ECU. The ECU is connected with the ECM.A control signal is sent to the ECM. The ECM is connected with the stopping relay, the water temperature sensor and the revolving speed sensor. The engine is connected with the ECM. The starting motor and the starting relay are connected. According to the starting and stopping control system, by controlling starting and stopping of the electronic fuel injection engine of the excavator, accidents such as journal sticking tile burning, piston scraping and piston seizure of the engine caused by poor lubrication and high temperature if the engine is started or stopped at a high throttle position are avoided, and the service life of the engine is prolonged advantageously; in addition, by additionally installing an emergency stopping device, so that stopping can be conducted immediately through an operator in an emergency situation, and accident risks of in the process of operating the excavator are reduced.

The invention relates to a drive axle (1) for a mobile working machine, especially for a ground conveying machine. The drive axle at least comprises electric drive motors (3a; 3b), power electronic devices (6a; 6b) manipulating the drive motors (3a; 3b), and speed changers (4a; 4b) driven by the drive motors (3a; 3b). The speed changers drive hubs (5a; 5b). A liquid cooling device which is used for the drive motors (3a; 3b), the power electronic device (6a; 6b) and the speed changers (4a; 4b) is equipped with a liquid loop. One or more following parts, a circulating pump (10), a heat exchanger device (11) and a filter (12), of the liquid loop are assembled or attached onto the drive axle (1).

When A denotes a required oil lower limit amount for one bearing near an oil supply source, and B and C respectively denote a required oil lower limit amount and a safety surplus oil amount for the other bearing away from the source, an amount of oil equal to A+B+C is supplied from the source and a hole diameter and the number of first oil holes are set such that an amount of oil to be supplied to the one bearing is equal to the amount A. Thus, the oil with the amount A can be securely supplied to the one bearing. Also, oil with the sum of the amounts B and C is supplied to the other bearing so that the oil with the amount B can be securely supplied to the other bearing which tends to receive oil insufficiently because of its remoteness from the source.

The present invention discloses a diamond dice that has a bearing region touching a wire inserted via an inlet, a reduction region arranged on the inlet side continuously to the bearing region, and a sidewall defining a hole extending from the inlet to the outlet along the axis so as to penetrate the bearing region and the reduction region. A wire inserted into the hole via the inlet is drawn out from the outlet via the bearing region. Assuming the inside diameter of the hole is D in the bearing region, a line connecting a first point on the sidewall located closer to the inlet side by a length of 1.0D in the axial direction of the hole than the boundary portion between the bearing region and the reduction region, and a second point on the sidewall located closer to the inlet side by a length of 3.0D in the axial direction of the hole than the boundary portion between the bearing region and the reduction region makes an angle Thema 1 of 15-30 degrees with respect to the axial direction on a cross-section appearing when the diamond dice is cut on a plane parallel with the axis and including the axis. The boundary portion between the bearing region and the reduction region has a curved surface.

The application provides a method for manufacturing a 2-series aluminum alloy ingot. The method comprises the following steps: (A) smelting a raw material of the 2-series aluminum alloy ingot; (B) guiding a smelted fusant into a heat-preserving furnace, and refining by adopting a mixed gas, wherein the mixed gas is a mixed gas of nitrogen and chlorine; (C) sequentially carrying out on-line degassing and on-line filtration on the fusant obtained from the step (B); (D) casting the fusant obtained from the step (C) at the casting speed of 48-55 mm/minute, the water flow of 28-35 m<3>/hour.piece and the casting temperature of 715-725 DEG C to obtain the 2-series aluminum alloy ingot. The method provided by the application sequentially carries out the procedures of smelting, refining, the on-line degassing, the on-line filtration and casting in the manufacturing process of the 2-series aluminum alloy ingot and obtains an optimal proportion by regulating casting temperature, a casting cooling water flow and casting speed, thereby greatly enhancing the finished product ratio of the 2-series aluminum alloy ingot.

The application provides a preparation method of 7 series aluminum alloy ingots. The preparation method comprises the following steps: (A) smelting a raw material of the 7 series aluminum alloy ingots; (B) guiding a melt after smelting into a heat preserving furnace, and performing refining by adopting a mixed gas which is a mixed gas of nitrogen and chlorine; (C) sequentially performing online degassing and online filtration on the melt obtained in the step (B); and (D) performing casting on the melt obtained in the step (C) to obtain the 7 series aluminum alloy ingots, wherein the casting speed is 48-55mm/min, the water flow rate is 28-35m<3>/h per each ingot, and the casting temperature is 715-725 DEG C. According to the preparation method provided by the application, during preparation of the 7 series aluminum alloy ingots, the processes of smelting, refining, online degassing, online filtration and casting are performed sequentially, and by matching the casting temperature, the casting cooling water flow and the casting speed, an optimal mixing ratio is obtained, so that rate of finished products of the 7 series aluminum alloy ingots is greatly improved.

The invention discloses a helical lubrication type harmonic wave reducer. The helical lubrication type harmonic wave reducer comprises a rigid inner gear ring, a flexible outer gear cup, a wave generator and a flow turbulence component. The flexible outer gear cup is engaged with the rigid inner gear ring. The wave generator is provided with a bearing, an oval wheel and a coupling, wherein the bearing is arranged in the flexible outer gear cup; the oval wheel is arranged in the bearing; and the coupling is connected with the oval wheel. The flow turbulence component is located in an oil storage space formed between the wave generator and the flexible outer gear cup and provided with a rotating shaft portion and a helical blade arranged on the rotating shaft portion. The flow turbulence component is connected with the coupling of the wave generator through a rotating shaft, therefore when the flow turbulence component is driven by the coupling, lubricating oil can be made to generate convection through the helical blade, and thus the bearing of the wave generator can obtain a good lubrication effect.

The invention discloses a determination method for the cupping value of a metal material and a die. The method comprises the following steps: 1) tightly pressing a test sample, specifically, selecting a proper periphery-pressing force according to the tensile strength of a metal test sample, and tightly pressing the periphery of the test sample by the periphery-pressing force, so as to prevent the flowing of the periphery material of the test sample; 2) stamping the test sample, specifically, lubricating the central part of the test sample by bonding lubricating grease with a polyethylene film, and then stamping the central part by a plunger chip at stamping speed of 0.5-2.0 mm/s; 3) determining the cupping value, specifically, in the stamping process, when a stamping-driving force is reduced by 1-6 kN, stopping stamping, at the moment, a plunger chip displacement corresponding to the maximum stamping-driving force is the cupping value. The die is provided with mutually matched brake beads on a press die and a cushion die. According to the determination method and the die disclosed by the invention, the influence of the periphery-pressing force, the lubricating agent and the stamping speed on the test of the cupping value is adequately considered, quantitative control is performed on crack judgement, and the flowing of the periphery material of the test sample is further prevented by optimizing the structure of the die, thus improving the accuracy of the test result.