21results about How to "Good self-lubricating performance" patented technology

The fine adjustment type support equipment comprises a top installation plate, a guide connection device is installed at the upper end of the top installation plate, bearing plates are symmetrically installed below the top installation plate, and a left guide block and a right guide block are installed on the outer sides of the bearing plates through guide devices respectively. A left-right fine adjustment device is mounted on the left guide block, and an up-down fine adjustment device is mounted on the right guide block; and the front sides of the left-right fine adjustment device and the up-down fine adjustment device are connected with a mounting base. Therefore, through mutual cooperation of the left-right fine adjustment device and the up-down fine adjustment device, a two-dimensional fine adjustment scheme can be formed, and the mounting and positioning precision of the clamping jaw device is remarkably improved. The sliding rail and the sliding block have a good self-lubricating effect on the premise that the stable combination degree is met. The stop raised head is matched with the elastic buffer rod, redundant impact kinetic energy can be absorbed at the limiting position, impact resonance is avoided, and use noise is reduced.

The application relates to the technical field of automobile part molds, and discloses an automobile part mold guide column, which comprises a lower mold and an upper mold, wherein the upper mold is located above the lower mold. The automobile part mold guide column is provided with a soft sleeve outside the ball guide column, can play a buffering and isolating role when the mold and the ball guide column relatively move, and the soft sleeve made of polytetrafluoroethylene has very low friction coefficient and good self-lubricating property. When the guide hole of the mold is in contact with the ball guide column and relatively slides, the soft sleeve first contacts the inner wall of the guide hole, the soft and smooth surface of the soft sleeve can effectively reduce the direct friction force between the two, the surface material of the ball guide column or the guide hole of the mold is prevented from being scraped and worn due to high-intensity friction, meanwhile, the soft sleeve can also fill the possible tiny gap between the ball guide column and the guide hole, the movement is more stable, the additional friction and wear caused by shaking and impact are reduced, and the pulling phenomenon of the ball guide column and the mold is avoided.

The present application belongs to the technical field of mechanical cutting tool manufacturing, and particularly relates to a micro-textured tool based on laser micro-cladding in-situ forming, a preparation method and application thereof. Specifically, the present application successfully prepares a multi-layer coated tool with a micro-textured morphology. The tool has the advantages of micro-texture, laser cladding layer and multi-layer coating structure, and has high hardness, good self-lubricating performance, good toughness, strong coating adhesion and small internal stress of the coating, and will not produce defects such as deformation or micro-cracks of the tool substrate material. In the cutting process, the tool can effectively reduce the cutting force and cutting temperature, reduce tool wear and improve tool life, and can be widely applied to dry cutting and cutting of difficult-to-machine materials, and therefore has good practical application value.

The invention provides a carbon fiber reinforced polyether-ether-ketone self-lubricating composite material and a preparation method and application thereof.The preparation method comprises the steps that carbon fiber serves as an anode, voltage is applied to an electrolyte solution, electrochemical oxidation treatment is conducted, hydroxylated carbon fiber is obtained, the hydroxylated carbon fiber and 2-amino-5-nitrobenzothiazole are mixed, and the carbon fiber reinforced polyether-ether-ketone self-lubricating composite material is obtained. Adding an anhydrous modified reaction solvent, and reacting at 25-40 DEG C for 4-10 hours to obtain modified carbon fibers; and melting and granulating the self-lubricating composite material: mixing the modified carbon fiber, polyether-ether-ketone, a lubricant and an auxiliary agent in a high-speed mixer for 10-20 minutes, extruding by using a double-screw extruder, cooling, and granulating to obtain the carbon fiber reinforced polyether-ether-ketone self-lubricating composite material. The carbon fiber reinforced polyether-ether-ketone self-lubricating composite material is applied to self-lubricating mechanical parts. According to the self-lubricating composite material, the self-lubricating performance is improved, the interface bonding energy between the carbon fibers and the polyether-ether-ketone is enhanced, and the self-lubricating composite material has good mechanical performance.

The application relates to a box cargo fan-shaped upper shelf system, which comprises a device module and a general control module for controlling the device module, the general control module comprises a control module, a fan-shaped upper shelf analysis module, a depth marking module and a threshold control module, the device module comprises a mechanical arm module, a stacking module and a shelf module, the shelf module comprises a plurality of shelves, and different shelves are divided into a shelf A and a shelf B based on shelf positions, and the division of the shelves can be selected based on information of the box body and divided into multiple kinds; the application has the advantages of improving the warehouse-out efficiency and self-lubrication of the stacking machine.

This utility model relates to a wear-resistant and quiet two-section hinge, comprising a first blade, a second blade, and a main shaft. The main shaft includes a male shaft and a female shaft. The male shaft is fixedly connected to the first blade, and the female shaft is fixedly connected to the second blade. One end of the female shaft has a blind hole, and one end of the male shaft has a convex shaft fixedly installed. The convex shaft rotatably engages with the blind hole. A wear-resistant sleeve made of polyetheretherketone (PEEK) is fixedly installed on the bottom inner wall of the blind hole. The top of the convex shaft fits against the wear-resistant sleeve. A polytetrafluoroethylene (PTFE) coating is fixedly installed at the opening end of the blind hole. A gap exists between the opposing surfaces of the male and female shafts. This design, through multiple improvements such as the inclusion of a PEEK wear-resistant sleeve, a PTFE coating, and a reasonable gap, solves the problems of high noise, easy wear, and poor applicability of traditional hinges, meeting the needs of hospitals, laboratories, data centers, and other application scenarios with high requirements for noise and cleanliness.

This utility model discloses a novel maintenance-free slewing bearing and its plastic oil separator, comprising an outer ring, an inner ring, and a plug. The plug passes through the outer ring and is adjacent to the outer side of the inner ring. An separator is disposed between the plug and the inner ring, and a steel ball is disposed within the separator. The plug is fixed to the outer ring by a tapered pin. Sealing rubber is disposed at the upper and lower ends of the outer ring and the inner ring, respectively. It possesses excellent heat resistance and self-lubricating properties; it can be injection molded and is environmentally friendly and pollution-free; it can be mass-produced, reducing costs. It achieves maintenance-free operation during use, reducing after-sales maintenance costs and extending product lifespan.

The utility model relates to the technical field of semi -automatic hot melt adhesive glue dispenser, in general, relate to a kind of for the semi -automatic hot melt adhesive glue dispenser of automobile battery pole group fixed. The utility model provides a kind of semi -automatic hot melt adhesive glue dispenser for automobile battery pole group fixed, including workbench, heating table, electric sliding rail one and electric sliding block one etc., heating table is installed in workbench top front side, the rear portion of workbench is respectively fixedly connected with electric sliding rail one, two electric sliding rail one are slidably connected with electric sliding block one. The utility model is driven electric sliding block one, electric sliding block two and electric sliding block three along X axis, Y axis and Z axis direction movement by electric sliding rail one, electric sliding rail two and electric sliding rail three three degrees of freedom motion platform, to realize the accurate control to glue valve space position, ensure that high-precision dispensing operation is carried out to pole group assembly specified position, improve the consistency and reliability of dispensing quality.

The invention discloses a nickel-based tungsten-doped high-temperature self-lubricating material and a preparation method thereof. The method comprises the steps that firstly, tungsten powder is pretreated through aqua regia and then poured into electroplating liquid to be subjected to ultrasonic mixing, and nickel-plated tungsten powder is prepared; 2, the nickel-plated tungsten powder, nickel powder, molybdenum powder, rare earth yttrium powder and calcium fluoride are proportioned and weighed, and composite material raw powder is obtained; 3, pouring the composite material raw powder into an ethanol solution, mixing, stirring and drying to obtain composite powder; 4, carrying out ball milling on the composite powder to obtain uniform composite powder; and 5, carrying out plasma sintering on the composite powder to obtain the nickel-based tungsten-doped high-temperature self-lubricating material. According to the nickel-based tungsten-doped high-temperature self-lubricating material, the Ni-Mo alloy serves as a base body, the high-temperature strength, hardness, abrasion resistance and self-lubricating performance of the nickel-based tungsten-doped high-temperature self-lubricating material are improved by adding the nickel-plated tungsten powder and the rare earth Y, CaF2 is introduced to serve as a composite lubricant, the self-lubricating effect is enhanced, spark plasma sintering is combined, the compactness of the material is improved, and the service life of the material is prolonged. The method is suitable for aerospace, high-speed carrying and other fields.

The application relates to the technical field of urban intelligent water supply, in particular to a city water supply pipeline repairing robot, which comprises a carrying vehicle, a feeding port is formed in one side of the carrying vehicle, a coiling mechanism is arranged in the carrying vehicle, the coiling mechanism is used for coiling and pressing a stainless steel lining plate into a circular ring structure, an inner lining mechanism is arranged at one side of the coiling mechanism and located at one side of the carrying vehicle, and the inner lining mechanism is used for lining the stainless steel lining plate of the circular ring structure on the inner wall of a water supply pipeline. The city water supply pipeline repairing robot can fully and effectively comprehensively repair the corroded part on the inner wall of the water supply pipeline by lining a layer of circular ring-shaped stainless steel lining plate on the inner wall of the water supply pipeline, thereby guaranteeing the normal water conveying process of the water supply pipeline.

This invention discloses an integrated molding process for conductive bearings that are non-conductive and self-lubricating, belonging to the field of sliding bearing manufacturing technology. The invention uses a composite strip with a conductive metal mesh as the metal base and PTFE composite material as the lubricating layer as the substrate. Integrated molding is achieved through a six-station progressive die. First, 2-3 protrusions are stamped on the strip. Then, the stamping pressure drives a 30°-45° wedge mechanism to scrape the lubricating layer from the protrusion surface at a fixed depth. The finished product is obtained through slicing, rolling, extrusion shaping, and stamping flanging. A detachable scraper and pore design optimize the processing flow. This invention achieves automated one-step molding of conductive bearings from strip to finished product, significantly improving production efficiency. The manufactured bearings have low contact resistance and a stable coefficient of friction. After electrophoretic coating, the salt spray test duration exceeds 96 hours, and the product consistency and structural stability are significantly better than traditional processes.

The application provides an optimization design method of an internal permanent magnet synchronous electric spindle for a high-precision numerical control machine tool, and aims at the problem that a conventional electric spindle structure cannot perform real-time adjustment on axial pre-load and radial external load, and performs optimization design on the electric spindle structure from three aspects of high-speed ceramic ball hybrid bearing material, axial pre-load real-time compensation and radial external load real-time compensation. The application can improve dynamic characteristics of a rotor system and can actively inhibit shafting vibration.

The utility model discloses a kind of vacuum coating machine coating workpiece rotating frame, it includes: device ontology, the top of the device ontology is fixedly connected with fixed layer, the middle part of the fixed layer is fixedly connected with rotating motor, the connecting end of the rotating motor is penetrated rotating frame, the top of the rotating frame is fixedly connected with sealing structure, the inside of the sealing structure is provided with sealing groove above;The inside of the sealing structure is provided with shaft sleeve groove in middle part, the shaft sleeve groove is provided with shaft sleeve, groove is set up in the shaft sleeve, and groove is filled with magnetic fluid, the middle part of the outer surface of the sealing structure is provided with magnetic pole installation groove, the middle part of the shaft sleeve is provided with rotating slot, sealing is carried out to bearing by the device using magnetic fluid sealing technology, effectively prevent vacuum environment destruction, improve coating quality.

The application provides a high-hardness low-friction diamond-like carbon coating piston ring and a preparation method thereof, and relates to the technical field of piston rings. The high-hardness low-friction diamond-like carbon coating piston ring comprises a base material, a primer layer, a transition layer and a DLC layer. The primer layer is a metal layer or a metal nitride layer, the transition layer is a diamond-like carbon layer containing a doping element, and the DLC layer is a pure diamond-like carbon layer. The piston ring provided by the application has good initial running-in effect, protects the parts, reduces fuel consumption and oil consumption, and has no peeling and stripping phenomenon on the surface coating after a heat stability test, and is more suitable for high-blast-pressure high-temperature engines and gas machines with poor lubrication conditions.

The utility model provides a soft seal ball valve, which relates to the technical field of ball valves and comprises a valve body and a ball body, a blow-down valve is arranged in the middle of the bottom of the valve body, a valve cover is arranged at the lower end of the blow-down valve, a first double-end bolt is arranged between the valve cover and the lower port of the blow-down valve, a first hexagon nut is arranged at the outer end of the first double-end bolt, and a second hexagon nut is arranged at the outer end of the second double-end bolt. A ball body is rotationally and movably arranged in the center in the valve cover, a valve rod is installed in the middle of the upper portion of the ball body, the middle of the valve rod is sleeved with a front cover, the upper end of the front cover is fixed to the lower portion of a connecting disc, and the connecting disc is installed on the lower portion of the turbine. Two O-shaped sealing rings are respectively arranged inside and outside the self-lubricating bearing and the packing box, and V-shaped packing made of PTFE (polytetrafluoroethylene) is preset in the packing box, so that the reliability and feasibility of the sealing performance of the valve shaft are ensured; meanwhile, the PTFE valve seat and the valve rod self-lubricating bearing which are small in friction coefficient and good in self-lubricating performance are adopted, the valve can be operated conveniently, flexibly and freely for a long time, and the valve is safer and more durable.

The utility model discloses a large-diameter pipeline induction trigger device applied to dusty environment, which comprises a guide movable plate, an overall fixing frame, a ball swing rod limit switch, a reset mechanism and a buffer mechanism, the guide movable plate is arranged above the overall fixing frame, the ball swing rod limit switch is fixed on the overall fixing frame, and the reset mechanism is fixed on the overall fixing frame. The ball swing rod limiting switch is located below the guiding movable plate, a buffering mechanism is arranged between the overall fixing frame and the guiding movable plate, and the limiting buffering mechanism can effectively prevent the situation that when external force is too large, the downward moving amplitude of the guiding movable plate installation base plate is too large, and the ball swing rod limiting switch is crushed. And good buffering is provided, and the shock resistance of the whole device is improved. A reset mechanism is arranged between the guide movable plate and the overall fixing frame, the reset mechanism can rapidly lift the guide movable plate upwards to return to the original position after the large-diameter pipeline leaves the device, and therefore signals of the ball swing rod limiting switch are reset to facilitate next-time induction triggering. According to the utility model, the in-place sensing and triggering of the large-diameter pipeline can be realized, and the influence of dust is avoided.

The application discloses a MoCN-Cu self-lubricating composite coating which is composed of a MoN adhesive layer, a MoCN gradient layer and a MoCN-Cu functional layer, and has a phase composition of polycrystal wrapping amorphous carbon structure and free Cu metal composite phase; the composite coating is prepared by arc ion plating deposition on a substrate matrix, and is applied to engine parts, matching parts, servo systems and attitude control systems. In the composite coating, the MoN adhesive layer, the MoCN gradient layer and the MoCN-Cu functional layer are sequentially arranged, and the phase composition is controlled to be polycrystal wrapping amorphous carbon structure and free Cu metal composite phase, so that the wear-resistant high-load-bearing performance of MoN is combined with the excellent self-lubricating performance of amorphous carbon material and soft metal phase Cu, a solid MoCN-Cu self-lubricating composite coating with low friction, low wear and high load-bearing is obtained, and the composite coating is suitable for use in a high friction and wear environment; and the preparation method is suitable for industrial production.

The invention discloses a wear-resistant coating for a bearing and a preparation method and application thereof.The wear-resistant coating at least comprises polyamide-imide resin powder containing hydrophobic groups, a lubricating phase and a modified reinforcing phase, and the modified reinforcing phase comprises a modified fibrous reinforcing phase and a modified powdery reinforcing phase; the modified fibrous reinforced phase is prepared by degumming, etching and treating a fibrous reinforced phase with a coupling agent, and the modified powdery reinforced phase is prepared by carrying out surface pretreatment and acidizing treatment on a powdery reinforced phase. Compared with a conventional polyamideimide resin wear-resistant material, under the combined action of the polyamideimide resin powder containing hydrophobic groups, the lubricating phase and the modified reinforcing phase, the coating has lower water absorption, better self-lubricating property and higher bearing capacity, and can be widely applied to manufacturing of bearings; not only can the use requirement of a high-humidity environment be met, but also mechanical faults can be obviously reduced, so that the service life of the bearing is longer.

This utility model relates to the technical field of ceramic lathe insert substrates, and more particularly to a ceramic lathe insert substrate with self-lubricating function. It includes a tool body with a through-hole bolt hole at its center. The tool body has a triangular cross-section structure, with a connecting portion at one end and insert portions at the other two ends. A chip guide groove is embedded on one side of each insert portion. This device allows for the addition of grease to the insert portions of the ceramic lathe insert through a grease tube inside, facilitating self-lubrication during use and reducing wear. Simultaneously, a connectable cooling water pipe is installed inside the ceramic lathe insert. When the internal temperature of the ceramic lathe insert becomes high due to use, external circulating cooling water exchanges heat with the internal components, thereby cooling the ceramic lathe insert and improving its performance, thus better meeting the needs of ceramic lathe insert usage.

The hub shaft lever limiting structure comprises a hub shell, a tower footing in transmission connection with the hub shell and a shaft lever penetrating through the hub shell and the center of the tower footing, a first bearing and a second bearing are arranged between the hub shell and the shaft lever, and a third bearing is arranged between the tower footing and the shaft lever. The third bearing is located on the side, away from the hub shell, in the tower footing. A sliding bearing is arranged between the second bearing and the third bearing, the sliding bearing is connected to the shaft rod in a sleeved mode, the outer wall of the sliding bearing abuts against the inner wall of the tower footing, and the end faces of the two sides of the sliding bearing abut against the end face of the inner ring of the second bearing and the end face of the inner ring of the third bearing respectively. An original shaft sleeve, an original intermediate gasket and an original rolling bearing are replaced, the structure is simplified, the assembly process is optimized, the number of parts is reduced, the assembly difficulty and the error rate are reduced, meanwhile, the overall weight is remarkably reduced, and the requirement of a high-performance bicycle for lightweight design is met.