563 results about "Friction reduction" patented technology

The invention relates to the technical field of intelligent oil injection control, in particular to a limited slip differential gear oil performance directional optimization method and system.The limited slip differential gear oil performance directional optimization method comprises the following steps that the temperature rise rate is collected through a temperature sensor to calculate the gear shaft elongation, and a meshing clearance trend vector is generated by combining differential temperature time sequence analysis; the stability correction is calculated by fusing oil film thickness data, the injection angle compensation driving servo motor is solved based on vector projection, the adhesion factor index is constructed by coupling the oil injection feedback and the oil film difference, the oil product meeting the tension condition is switched when the limit is exceeded, and the lubrication recovery performance is evaluated. According to the method, gear shaft temperature rise and differential mechanism temperature gradient data are collected in real time, meshing clearance accurate prediction is achieved by combining expansion coefficient analysis, stability judgment is improved by fusing oil film thickness data, jet precision is optimized based on a vector projection dynamic compensation jet angle, and an adhesion factor index containing a phase difference is constructed to achieve lubrication attenuation early warning. And oil products are accurately switched by dynamically matching tension and viscosity threshold values, so that friction loss is reduced.

The invention relates to the technical field of speed reducers, in particular to a multi-stage coaxial speed reducer which comprises an outer cylinder, a first-stage gear ring and a second / third-stage gear ring are arranged in the outer cylinder, and a first-stage speed reducer, a second-stage speed reducer and a third-stage speed reducer are sequentially arranged in the outer cylinder. The first-stage planet carrier framework is axially fixed, and the second-stage planet carrier framework and the third-stage planet carrier framework axially float; gaskets / thrust bearings are arranged between stages to achieve axial supporting and friction reduction, and the last-stage three-stage planet gears adopt staggered-tooth gears to eliminate meshing clearances. Through the coaxial compact integrated design, the large reduction ratio and the compact structure are both considered; due to the lubricating circulation design of inter-stage antifriction supporting and self-adaptive rotating speed, the friction loss is greatly reduced, and the transmission efficiency is improved; the structure of staggered tooth clearance eliminating, elastic buffering and shaft system stabilizing effectively reduces gear abrasion and impact loads, remarkably prolongs the service life, has the advantages of being high in transmission precision, fast in response and stable in operation, and can be used for precise transmission, automobile active stabilizer bars and other scenes.

A floating joint and retainer connection device includes a fixed retainer internally defines a receiving space; an adaptor joint having an end extending through the receiving space to an outer side of the fixed retainer and an axially limiting section formed near another end; a fixing element fitted on the adaptor joint and located outside the fixed retainer for limiting the adaptor joint from moving axially while allowing the adaptor joint to displace radially relative to the fixed retainer; a rolling assembly disposed adjoining the fixed retainer; and a spring located in the receiving space and fitted on the adaptor joint with two ends pressed against the axially limiting section and the fixed retainer or the rolling assembly. When the rolling assembly rolls to displace radially relative to the fixed retainer, a radial frictional force produced by a normal force applied by the spring to the fixed retainer is reduced.

The invention belongs to the technical field of robot and intelligent equipment driving, and discloses an integrated servo push rod and a control method.A push rod module is integrally designed, and a high-density motor, a ball push rod and a band-type brake are arranged in the push rod module. The invention has the characteristics of high power density, small volume, high precision, high response speed, low noise, long service life, high reliability and the like. The inside of the push rod is contacted with the deep groove ball bearing at the tail end of the screw rod through the ball retainer, and the outside is contacted with the oil-free bushing, so that the lateral strength of the push rod is improved, friction is reduced, and operation efficiency is improved. A linear encoder is arranged at the end of the screw rod, accurate control of the tail end can be achieved, a magnetic encoder is arranged at the tail end of the motor, input and output end double-closed-loop can be achieved, precision can be improved, and errors of band-type brake in power-off response time can be compensated; the lead screw is connected with the motor through the diaphragm coupling in the motor, so that the axial space is saved, and the service life of the motor is prolonged.

The invention relates to the technical field of part stamping dies, in particular to an automobile part machining stamping forming die which comprises a mounting plate, a fixed supporting structure is arranged below the mounting plate, a first mounting block is fixedly mounted on the upper side of the mounting plate, and a detachable lower die base is arranged on the upper side of the first mounting block. In the process that a sliding block moves downwards along with a movable adaptive block, the top face of the sliding block retracts into a first sliding cavity, space is reserved for stamping, when stamping is completed and an upper die block ascends, a second spring pushes the movable adaptive block to move upwards, the top of the sliding block protrudes out of the surface of a lower die base to eject a workpiece, and the top of the sliding block makes contact with an extrusion sensor to trigger an automatic oil injection pump; lubricating oil is injected into the oil injection hole through the guide pipe and sprayed to the surface of the lower die base through the oil injection groove to complete lubrication of the lower surface, the bidirectional lubrication mechanism ensures that the metal sheet is comprehensively lubricated in the stamping process, friction loss is remarkably reduced, and the product surface quality is improved.

The invention relates to the technical field of lubricating oil, in particular to high-temperature-corrosion-resistant lubricating oil and a preparation method thereof. The high-temperature-corrosion-resistant lubricating oil is prepared from the following raw materials in parts by mass: 130 to 190 parts of base oil, 1 to 5 parts of an anti-wear reagent at extreme pressure, 1 to 5 parts of amino modified graphene, 0.1 to 1 part of an anti-rust agent, 1 to 3 parts of an antioxidant, 0.1 to 1 part of a de-foaming agent, 5 to 15 parts of trioctyl trimellitate, 1 to 5 parts of sodium lignin sulfonate and 1 to 5 parts of sodium bentonite. The high temperature resistance and the viscosity-temperature performance of the lubricating oil can meet the use requirements of a bearing under the working conditions of high speed, high temperature and large load, the wear resistance and the friction reduction of the lubricating oil at high temperature are effectively improved, and meanwhile the preparation method is simple and suitable for large-scale popularization and application.

The invention relates to the technical field of propeller cleaning, in particular to an MR oil tanker propeller ultrasonic cleaning system which comprises a cleaning mechanism, a purifying mechanism is arranged on one side of the cleaning mechanism, a medicine feeding mechanism is arranged above the cleaning mechanism, and the medicine feeding mechanism is connected with the purifying mechanism. The cleaning mechanism comprises a cleaning pool, a first ultrasonic transducer used for emitting ultrasonic vibration from the bottom, a second ultrasonic transducer used for emitting ultrasonic vibration from the two sides, a waterproof hydraulic cylinder used for shaking a propeller, a connecting block, a moving seat and wheels. According to the scheme, the cleaning efficiency of dirt on the surface of the propeller is remarkably improved, the ultrasonic transducers distributed at the bottom and on the two sides can generate a high-frequency cavitation effect to cover all parts of the propeller, and the movable base driven by the waterproof hydraulic cylinder drives the propeller to reciprocate in the cleaning pool to be matched with wheels to reduce friction; dirt is stripped in an accelerated mode under the dual effects of mechanical shaking and the cavitation effect.

The invention discloses a medium-entropy (Zr, Ta, W) C coating and a preparation method and application thereof. The medium-entropy (Zr, Ta, W) C gradient coating is prepared on the surface of the titanium alloy or the iron-based alloy through the double-layer glow plasma surface metallurgy technology, and gradient temperature annealing treatment is conducted. The preparation method has the specific advantages that (1) the prepared coating is of a continuous gradient structure, good interface metallurgical bonding is formed between the coating and a matrix, the bonding force of the coating is not lower than 50 N, and the coating is not prone to cracking and stripping in the service process due to the high bonding strength; and (2) the hardness of the medium-entropy (Zr, Ta, W) C coating prepared by the method is 25-30 GPa, the fracture toughness is 4.0-5.0 MPa * m < 1 / 2 >, and the coating system has balanced hardness and toughness, so that the coating is endowed with excellent wear resistance. The prepared coating has excellent wear resistance and antifriction performance, and has wide application prospects in the field of wear-resistant protective coatings.

The utility model discloses a plastic oil self-lubricating maintenance-free axle bearing which comprises an outer ring, a rolling body, an inner ring and plastic oil, the rolling body is arranged between the inner ring and the outer ring, the plastic oil is in contact with the rolling body and is used for lubricating the rolling body, the utility model provides the novel self-lubricating maintenance-free axle bearing, and the plastic oil formed by an oil-saturated polymer matrix is used as a lubricating medium of the axle bearing; the lubricating oil can stably run in high-load, high-dust, high-temperature and low-temperature environments, and a lubricating film is autonomously formed in the running process, so that the maintenance frequency is reduced, the friction loss is reduced, the wear resistance is enhanced, and even the lubricating oil is maintenance-free. And the solid plastic oil is not easy to leak, so that the risk of environmental pollution is reduced.

The utility model relates to the technical field of filtering equipment, in particular to a vacuum sliding table structure of a filtering machine, which comprises a sliding table body, a vacuum chamber is arranged in the middle of the sliding table body, a filtering cavity and a discharge hole are arranged below the vacuum chamber, and a mounting area is arranged on the sliding table body. The installation areas are arranged on the left side and the right side of the vacuum chamber respectively, floating plates are arranged in the installation areas and connected to the sliding table body through elastic assemblies, sliding grooves are formed in the upper ends of the floating plates, and friction belts are arranged in the sliding grooves. The sliding table has the advantages that the floating plate is connected to the sliding table body through the elastic assembly, the sliding efficiency and smoothness of a sliding part are improved, friction resistance is reduced, the situation that a rubber belt and a friction belt are abraded and cannot be tightly attached, and the vacuum environment is damaged is avoided, the influence of external force on the sliding table can be buffered and dispersed to a certain degree, and the service life of the sliding table is prolonged. And the service life of equipment is prolonged.

The invention discloses a rotor coaxial heat dissipation structure, a fluorine-containing metal-based lubricating composition and application of cooperation of the rotor coaxial heat dissipation structure and the fluorine-containing metal-based lubricating composition in a motor rotor shaft, and the rotor coaxial heat dissipation structure and gradient functional coatings sequentially formed on the surface of the motor rotor shaft comprise a bottom layer used for leading out winding heat; the transition layer is used for solid lubrication and PFPE heat triggering slow release; the surface layer is used for reducing friction and repairing microcracks; a micro-pit array and a spiral flow guide groove which are machined through laser are formed in the outer portion of the surface layer. According to the invention, a gradient functional coating three-layer synergistic structure is adopted to construct a gradient framework of a bottom layer (a heat conduction band nano reinforced phase), a transition layer (oriented whiskers and slow-release lubrication) and a surface layer (magnetic response self-repairing), so that the problem that heat management, wear resistance and self-repairing functions of a traditional coating are difficult to be compatible is solved; and meanwhile, through the combined design of the laser micro-pit array (liquid storage and resistance reduction) and the spiral flow guide groove (strengthening the flowing of the cooling medium), the heat dissipation efficiency is cooperatively improved.

A friction reduction tool configured for selective activation downhole in response to a variation in a media flow's operating condition. A valve assembly and an activation assembly are both positioned downstream of a power assembly, which is configured to rotate a rotating valve segment of the valve assembly with media flow through the tool. The activation assembly is configured to transition from a first position to a second position with the media flow operating condition variation. In the first position, the activation assembly provides a bypass flow path around the valve assembly for at least a portion of the media flow, thereby preventing the valve assembly from generating any significant pressure pulse with rotation of the rotating valve segment. In the second position, the bypass flow path is closed such that all or a majority of the media flows through the valve assembly, thereby generating a significant pressure pulse.

The invention discloses a high-precision clamping force estimation method of an electronic mechanical braking system, and belongs to the technical field of automobile braking system control. The method comprises the following steps: acquiring real-time signals such as motor rotation angle, angular velocity and current, and acquiring a steady-state clamping force estimation value by using a seven-degree polynomial static model; then based on a motor angular speed judgment working condition, correcting a tightening force estimation value through an inertia and friction dynamic compensation model under a high-speed dynamic working condition to obtain a model output force; estimating unmodeled disturbances such as friction change and temperature excursion in real time through an extended state observer to obtain disturbance compensation force; and finally, obtaining a final clamping force estimated value by adopting working condition self-adaptive weighted fusion. According to the method, errors caused by factors such as friction change, temperature excursion and structure aging can be effectively reduced, and high-precision estimation of the clamping force is achieved.

The invention relates to the technical field of injection molding devices, and discloses a dust collector part injection molding device which comprises a workbench, an air cylinder is fixedly connected to the top of the workbench, a sliding plate is fixedly connected to the driving end of the air cylinder, hollow columns are fixedly connected to the periphery of the sliding plate, and oil storage grooves are formed in the hollow columns; the interior of the oil storage tank is rotatably connected with a plurality of balls, the interior of the hollow column is fixedly connected with an oil inlet pipe, the interior of the sliding plate is slidably connected with a plurality of limiting assemblies, each limiting assembly comprises a plurality of sliding blocks, and the outer sides of the sliding blocks are slidably connected with the interior of the sliding plate. Lubricating oil can be continuously brought to the outer side of the fixing rod from the oil storage tank through the balls, the surface of the fixing rod is kept in a good lubricating state, friction and abrasion are reduced, it is guaranteed that the sliding plate slides smoothly on the fixing rod, and the service life of equipment is prolonged.

The invention relates to the technical field of silicon steel coil cutting devices, and particularly discloses an automatic silicon steel coil cutting treatment device for transformer machining, which comprises a working plate, a frame is fixedly mounted at the position, close to the middle, of the upper end face of the working plate, a first sliding block is slidably arranged on the inner side of the frame, and a first adjusting rod is arranged on the inner side of the first sliding block; tensioning rotating shafts in a symmetrical state are arranged on the outer sides of the first adjusting rods, the outer circumferential surfaces of the tensioning rotating shafts are covered with nanoscale elastic wear-resistant coatings, pressure sensors are embedded in the tensioning rotating shafts, the pressure sensors are electrically connected with an external controller, and the coiled material tensioning pressure can be fed back in real time and automatically adjusted; the pressure sensor is embedded in the tensioning rotating shaft, the tensioning pressure of the coiled material is fed back in real time, the servo control of the third motor and the fourth motor is combined, the dynamic adjustment of the tensioning pressure is realized, and the coiled material is effectively prevented from being wrinkled and deviated. And meanwhile, the nanoscale elastic wear-resistant coating on the surface of the tensioning rotating shaft can reduce frictional wear, and the surface of the coiled material is prevented from being scratched.

The stamping die is applied to the technical field of stamping dies and comprises an upper die base, a lower die base, a lower die and a lifting plate arranged in a cavity below the lower die, an ejector rod is arranged on the lifting plate, the ejector rod is of a hollow structure and is communicated with a first air bag, and when the ejector rod moves upwards along with the lifting plate to be ejected out, the air bag is communicated with the lower die. The air bag is synchronously extruded to release air in the air bag through the ejector rod, and air flow buffering is formed between the ejector rod and the mold; the lifting plate is connected with the upper die base through a connecting piece, so that the lifting plate is driven to move upwards after the upper die is completely separated from the lower die, and sequential control of ejection actions is realized; a second air bag communicating with the cavity is arranged below the lifting plate, and air flow is formed in the reset process of the lifting plate for heat dissipation and buffering. Through the structural design, under the condition that an independent power source is not added, cooperative improvement of demolding friction reduction, action time sequence control and long-term operation stability is achieved, and the demolding mechanism is suitable for reliable demolding of parts under the continuous stamping working condition.

The invention relates to the technical field of deep well drilling, in particular to a deep well drilling anti-jamming buffer device which comprises a first connecting piece, a threaded groove is formed in the upper portion in the first connecting piece, a first through hole is formed in the first connecting piece, and a limiting block is installed on the lower portion of the first connecting piece. The second connecting piece is connected to the lower portion of the first connecting piece in a sliding mode, a threaded groove is formed in the middle of the second connecting piece, the shielding piece is installed on the second connecting piece, and the disc spring is installed between the second connecting piece and the first connecting piece. Through the synergistic effect of the disc spring set and the damper, nonlinear absorption of axial impact energy is achieved, radial self-adaptive aligning of the ball assembly is matched, the multidirectional load of the drill rod in a complex stratum and the gap adjusting function of the inclined face of the shielding piece and the reamer are effectively balanced, mud pressure distribution can be dynamically optimized, and the drilling efficiency is improved. And through combination of reaming cutting and ball resistance reduction, an axial-radial composite jam releasing mechanism is formed, and the probability of jamming of the drill is remarkably reduced.

As described herein, there is a polymer dispersion system comprising: (a) a first sub-system for transporting a fluid; (b) a modular unit for transporting dry materials; (c) a mixing device in fluid communication with the egress of the first sub-system and the egress of the modular unit; (d) a tank assembly comprising an ingress and an egress, the ingress of the tank assembly being in fluid communication with an egress of the mixing device; and (e) a transfer sub-system comprising an ingress that is coupled to the egress of the tank assembly. The modular unit may comprise a platform constructed of a frame and a first conveying unit. The platform comprises a conduit comprising a conduit inlet and a conduit outlet, a plurality of sealing mechanisms disposed around the platform inlet, and a vibrator. The first conveying unit in fluid communication with the conduit outlet.

The invention provides a nitrogen-containing boric acid ester-nano hybrid composite anti-wear additive as well as a preparation method and application thereof, and belongs to the technical field of lubricating oil additives. The nitrogen-containing boric acid ester, the functionalized nanoparticles, the ionic liquid, the auxiliary anti-wear agent and the dispersion stabilizer are subjected to nano-scale hybrid compounding, and the nitrogen-containing boric acid ester, the functionalized nanoparticles, the ionic liquid, the auxiliary anti-wear agent and the dispersion stabilizer have a synergistic effect on four aspects of physical bearing, chemical adsorption, interface modification and extreme pressure enhancement; a multi-synergistic lubrication and protection system of an adsorption film, a physical isolation layer, an extreme pressure reaction layer and rolling lubrication microspheres is constructed, efficient wear resistance, friction reduction, bearing and stability improvement are jointly achieved, and the lubricating oil is suitable for insoluble base oil.

The high-speed shaft type brake for wind power generation comprises a shell, a main shaft is rotationally connected to one side of the shell, a main braking mechanism is fixedly connected to the bottom of the inner wall of the shell, an auxiliary braking mechanism is arranged in the shell, the main shaft penetrates through the main braking mechanism and the auxiliary braking mechanism, and a controller is fixedly connected to the inner wall of the shell. An expansion box is fixedly connected to the bottom of the shell, a motor is fixedly connected to the inner wall of the expansion box, a motor output shaft penetrates through the inner wall of the expansion box and extends into the shell, the base is fixedly connected to the bottom of the inner wall of the shell, the claw disc shell is fixedly connected to the top of the base, and the three bevel pinions evenly penetrate through the outer surface of the claw disc shell. The small bevel gear is rotationally connected with the claw disc shell, and the three clamping claws are slidably connected to one side of the claw disc shell. The main shaft can be rapidly braked, and meanwhile the problem that the friction performance is reduced due to friction overheating can be solved through alternate braking of double braking.

The utility model relates to the technical field of workshop assembly lines, and discloses an assembly line tray positioning mechanism which comprises a conveying belt, a tray is arranged on one side of the upper portion of the conveying belt, a supporting plate is arranged on the other side of the lower portion of the conveying belt, an electric push rod is fixedly connected to the lower surface of the supporting plate, and a plurality of plugs are fixedly connected to the upper surface of the supporting plate. A friction reduction unit is arranged in the tray, an auxiliary unit is arranged on the lower surface of the tray, and a stability augmentation unit is arranged on one side of the tray. According to the assembly line tray positioning mechanism, through cooperation of the conveying belt, the tray, the supporting plate, the electric push rod, the plug and the friction reduction unit, threaded transmission is conducted on a threaded cylinder, the flitch plate is limited through a vertical rod, the flitch plate can move upwards, a gap is generated between an anti-skid pad and the conveying belt, and at the moment, static friction force cannot be generated between the running conveying belt and the tray; abrasion to the conveying belt can be greatly reduced, and the purposes of reducing cost and increasing efficiency can be achieved for enterprises.

Motor unit (1) with an electric motor (11) which is arranged in a housing (12), wherein the motor unit (1) comprises a lubricant circuit which lubricates and cools the electric motor (11), wherein- the electric motor (11) comprises a stator (111) and a rotor (112) which is rotatably mounted in the stator (111) which is rigidly connected to the housing (12), wherein a rotor gap (RS) is located between the stator (111) and the rotor (112), wherein the stator (111) is at least partially surrounded by a stator housing (121) which is arranged within the housing (12), wherein the stator housing (121) is at least partially filled with lubricant and belongs to the lubricant circuit,- at least one lubricant pump (13) which is fluidically connected to the stator housing (121) and receives lubricant from the stator housing (121), wherein the lubricant pump (13) has at least one has an outlet for lubricant,which is fluidly connected to the stator (111) and the rotor (112), wherein the lubricant pump (13) delivers lubricant to the electric motor (11) via the outlet, characterized in that a flow generation unit (15) is provided, which sucks air from the housing (12) and blows it into the rotor gap (RS) in order to remove lubricant from the rotor gap (RS) in order to reduce the internal friction in the electric motor (11), wherein the rotor (112) forms a pump of the flow generation unit (14) and, during its rotation, delivers air into the rotor gap (RS) or to the rotor gap (RS), wherein the flow generation unit (15) comprises an oil separator (151) which is arranged in front of the rotor (112) in the direction of flow of the air through the flow generation unit (15),wherein the oil separator (151) separates lubricant contained in the air in the housing (12) and passes air with reduced lubricant content or lubricant-free air to the rotor (112) acting as a pump.

The utility model discloses a metal plate numerical control bending device which comprises a machining table, a portal frame is fixedly installed at the top of the machining table, a bending push rod is fixedly installed at the top of the portal frame, the bottom end of the bending push rod penetrates through and extends into the portal frame, a bending seat is fixedly installed at the output end of the bending push rod, and the bending seat is fixedly installed on the machining table. An electric guide rail is fixedly mounted at the top of the machining table, a movable seat is slidably mounted on the electric guide rail, two bearing seats are mounted at the top of the movable seat, and bending grooves are formed in the tops of the bearing seats. According to the metal plate bending device, placing friction is reduced by arranging the rolling shafts and the auxiliary grooves, bending precision is guaranteed through the limiting assemblies, meanwhile, continuous bending and precise positioning of the infrared sensors are achieved through the electric guide rails and the movable seat moving transversely, metal plates can be taken out and placed conveniently through the auxiliary assemblies, automation, high efficiency and precision are improved through the overall design, and the bending precision is improved. And the production efficiency and the product quality are obviously improved.

The invention discloses an automatic grease supplementing ball valve and a grease supplementing method thereof. The automatic grease supplementing ball valve comprises a valve body, a valve seat, a valve rod, a ball body, a grease injection assembly and a transmission assembly. Each transmission assembly comprises a one-way connecting piece, a gear set and a lead screw, a valve rod is fixed to the ball, a valve shaft is coaxially connected to the lower end of the ball, four sets of grease injection assemblies and transmission assemblies are arranged on the left and right sides of the valve shaft and the ball, threads of the lead screws are reverse to ensure that the push plates move in the same direction, and the valve body is provided with a 90-degree limiting groove. When the valve rod opens the runner, the one-way connecting piece drives the gear set to drive the lead screw, and the four sets of push plates synchronously push sealing grease to four contact points of the ball body and the valve seat; and during closing, the one-way connecting piece idles, and grease injection is stopped. According to the method, sealing is achieved through initial calibration, starting of synchronous grease injection, closing of supply stopping and circulating grease injection. Dynamic and accurate sealing and lubricating friction reduction are achieved, grease waste is avoided, sealing reliability is improved, the service life of parts is prolonged, and the sealing device is suitable for multi-specification ball valves.

A method for producing a Mo-N based coating structure, comprising providing a substrate (1) to be coated and applying a hard material layer (6) onto the substrate (1), the hard material layer (6) comprising at least one layer (4) of Mo-N having a hexagonal crystal structure and at least one layer (5) of Mo-N having a cubic crystal structure or a mixed hexagonal / cubic crystal structure, the hard material layer (6) being applied by a low-temperature closed-field unbalanced reactive magnetron sputtering coating process.

The invention discloses a wide-temperature-range self-adaptive friction-reducing and wear-resistant chromium-containing refractory high-entropy alloy material and a preparation method thereof, and belongs to the technical field of wear-resistant alloy materials, and the high-entropy alloy material comprises the following raw materials in percentage by mass: Ta, Mo, Ti and Cr. The preparation method comprises the steps that Ta powder, Mo powder, Ti powder and Cr powder are weighed by mass, ball milling is conducted, then sintering is conducted through a spark plasma sintering method, and the wide-temperature-range self-adaptive anti-friction and anti-wear chromium-containing refractory high-entropy alloy material is obtained. By introducing the chromium element, the alloy can adaptively form an oxide layer with lubrication and protection effects in a wide temperature range from room temperature to ultrahigh temperature, so that the alloy shows excellent tribological performance and has extremely low friction coefficient and wear rate. The material has a wide application prospect in the fields of wear-resistant lubricating materials and high-temperature wear-resistant parts.

The invention relates to the technical field of welding part supporting devices, and discloses a welding part supporting device for a welding robot and a supporting method thereof.The welding part supporting device comprises a reset rod, the end of the reset rod is fixedly connected with a stress inclined block, and the end, away from the reset rod, of the stress inclined block is fixedly connected with a fixing ring. By arranging the fixing mechanism, when a contact plate moves, the contact plate makes contact with the surface of a stress inclined block and extrudes the stress inclined block, when the stress inclined block is extruded, a reset rod is pushed to move in the direction close to each other, and when the reset rod moves, a fixing ring is pushed to move in the direction close to each other; when the fixing ring moves, due to the fact that the fixing ring is in an annular shape, the angle can be decreased in the moving process, and therefore welding pieces with different diameters can be fixed, and when the fixing ring moves, the rotating wheels can be pushed to move in the direction close to each other so as to make contact with the surfaces of the welding pieces; therefore, the effect of reducing friction in the rotating process of the welding piece is achieved.

The utility model relates to water pollution treatment technical field, concretely disclose a kind of surface floating object salvage equipment applied to water pollution treatment, including support seat, the bottom of support seat symmetry universal wheel, and the surface of support seat is symmetrically equipped with pneumatic cylinder;The output shaft end of the pneumatic cylinder is connected with slider, and the surface of slider is fixedly connected with collection box, the bottom of collection box is installed with baffle at equal intervals, and the surface of collection box is inlayed and is equipped with filter screen, the surface of slider is equipped with linear motor.This surface floating object salvage equipment applied to water pollution treatment is provided with linear motor, guide rod and support rod, when linear motor drives connecting rod to move, wheel rolls in slide rail, both reduce friction, and also prevent connecting rod from drooping due to length being relatively long by the rigid support of guide rod, so that stable triangular support structure is formed between linear motor, guide rod and support rod, the stability and reliability of salvage operation are improved.

The utility model relates to the technical field of stretching devices, in particular to a multifunctional copper wire stretching device. According to the technical scheme, the device comprises a box body and further comprises a workbench arranged on the box body, a fixing block is arranged on the workbench, a clamping plate is installed in the fixing block, an electric push rod connected with the clamping plate is fixedly installed on the fixing block, and a treatment box is fixedly installed on one side of the top of the workbench. According to the utility model, the burrs attached to the surface of the stretched copper wire are automatically cleaned and removed, the friction loss and stress concentration points are reduced, the normal stretching operation is prevented from being influenced by the breakage of the copper wire, the working efficiency is improved, meanwhile, the operators are protected, and the safety is improved.

The utility model discloses a ball valve seat mounting mechanism which comprises a connecting plate, a fixing plate is arranged on the surface of the connecting plate, an electric push rod is fixed to the surface of the fixing plate, a limiting plate is arranged on the surface of the bottom end of the electric push rod, an auxiliary assembly is arranged on the inner side of the limiting plate, a buffering assembly is arranged at the bottom end of the electric push rod, and a pressing head is connected to the lower portion of the buffering assembly. Connecting assemblies are arranged at the connecting positions of the buffering assembly and the pressing head and the electric push rod, and a valve body clamping base is arranged below the pressing head. When a user uses the electric push rod, the auxiliary assembly is arranged between the limiting plate and the electric push rod through the arrangement of a corresponding structure, the internal ball is attached to the surface of the electric push rod, friction is reduced, the pressing head and the valve body clamping base can be detached at any time, and appropriate parts can be replaced; and meanwhile, the buffering assembly can buffer pressure caused by the pressing head, and the service life of the mounting mechanism is prolonged.