108results about How to "Realize self-lubrication" patented technology

The invention discloses casing material of an engineering plastic joint bearing. The casing material is characterized in that the casing material comprises polyamide 6 with weight parts of 58.2 to 66.0, glass fibers with weight parts of 28.3 to 38.8, MoS2 with weight parts of 2.4 to 4.7, dispersing agent TAT with weight parts of 0.4 to 0.6, anti-oxidant 168 with weight parts of 0.1 to 0.2 and anti-oxidant 1010 with weight parts of 0.1 to 02. The invention also discloses inner sphere material of the engineering plastic joint bearing. The inner sphere material is characterized in that the inner sphere material comprises polyamide 66 with weight parts of 92.0 to 95.5, solid lubricant with weight parts of 2.5 to 4.8, bulking agent POE-g-MAH with weight parts of 1.5 to 2.4, dispersing agent TAT with weight parts of 0.4 to 0.6 and anti-oxidant 1098 with weight parts of 0.1 to 0.2. In addition, the invention also discloses a moulding method for the engineering plastic joint bearing, firstly, the inner sphere is injected, then the inner sphere is positioned into an outer casing die as an embedding part for injecting the casing, and the engineering plastic joint bearing is positioned into a baking box for final treatment after being molded through injection. By adopting the method, the production efficiency of the technically molded single product in the prior art is enhanced from 30 min to 1 min.

The invention discloses a self-lubricating sliding bearing with seamless inner surface treatment, belonging to the technical field of bearings, comprising a support seat; balls are sleeved inside the fixed frame; the outer wall of the ball and the inner wall of the outer ring body are attached to each other; There is an oil storage chamber; the side wall of the support seat is provided with a protective tube; the inside of the protective tube is penetrated with cotton thread; the inside of the protective tube is respectively provided with a first limit sleeve and a second limit sleeve; the outer wall of the second limit sleeve There is an adjustment knob in the screw connection; the cotton thread runs through the inside of the first limit sleeve and the second limit sleeve; the top of the cotton thread extends into the inside of the fixing plate; the outer wall of the fixing plate is provided with a sponge pad; the side wall of the support seat and the storage A filling cap is provided at the opposite position of the oil chamber. The self-lubricating sliding bearing of the present invention can stably and evenly apply lubricating oil to each ball to realize self-lubricating of the bearing.

A three-freedom-degree transmission mechanism comprises a helical pair, a revolute pair and a cylindrical pair. The axis of the helical pair is perpendicular to the axis of the revolute pair, and the axis of the revolute pair is parallel to the axis of the cylindrical pair. The revolute pair comprises a support (7), a movable sliding block (5), the helical pair (3), a nut (4), a left limiting block (1) and a right limiting block (6). The left limiting block (1) and the right limiting block (6) are fixedly arranged on the support (7), and the helical pair (3) is provided with the movable sliding block (5). The transmission mechanism is characterized in that the helical pair (3) mounted on the support (7) and the revolute pair can form 0-degree to 180-degree intersection angles through the movable sliding block (5). According to the transmission mechanism, under the condition of identical number of rotation of a screw rod, the speed of the straight line motion (opening and closing) of the nut (a door leaf) is improved. The mechanical locking of a vehicle door is achieved without another set of mechanical locking mechanism. The transmission mechanism is simple, the motion procedures of unlocking and locking are removed, procedure control is simplified, and two fault hazards are eliminated.

The invention discloses an articulation method of a fixed articulation of a low-floor vehicle and an articulation device of the fixed articulation. The articulation method of the fixed articulation of the low-floor vehicle comprises the steps of firstly assembling metal spherical plain bearing in the fixed articulation of the low-floor vehicle into a whole, connecting the integral metal spherical plain bearing with an upper fixed support of a vehicle body through first connecting pieces and connecting the integral metal spherical plain bearing with a lower fixed support of another vehicle body through second connecting pieces so as to connect the adjacent two vehicle bodies. The articulation method of the fixed articulation of the low-floor vehicle and the articulation device of the fixed articulation change a center pin structure connection method in the prior art, and can not only meet the running requirement of the low-floor vehicle, but also allow the articulation device of the whole fixed articulation to be simple and compact in structure, thereby decreasing the demand for installation space, reducing the difficulty of assembly and disassembly of the whole fixed articulation and reducing the difficulty of maintenance.

A segmental supporting mandrel for the rolling roller has an axial lubricating oil channel and two eccentrical ends matched with the baking bearings in eccentrical mode for eliminating the non-uniform deformation of rolling roller.

The invention relates to a limiting adjusting device for the opening of a cartridge valve. The limiting adjusting device for the opening of the cartridge valve comprises a shell, a driving mechanism, a main shaft, a limiting ejector rod, a valve plug and a valve sleeve, wherein the driving mechanism is fixedly connected with one end of the main shaft, the other end of the main shaft is connected with one end of the limiting ejector rod through a thread transmission pair, the other end of the limiting ejector rod is inserted into a control cavity of the valve plug, and a rotation stopping mechanism is arranged between the shell and the limiting ejector rod. Pilot hydraulic oil enters the control cavity of the valve plug through an oil circuit on the shell, the limiting ejector rod is completely immersed in the hydraulic oil in the control cavity of the cartridge valve, and the borne hydraulic pressure can automatically achieve the balance; all bearings and the thread transmission pair arranged between the main shaft and the limiting ejector rod are immersed in the oil, self lubrication is achieved, the service life of the components is prolonged, and adjusting accuracy of the components is improved.

The invention discloses a vertical-axis shaft water flow power generation device and a testing system. The vertical-axis shaft water flow power generation device comprises an impeller, a floating supporting platform, a speed increaser and a power generator, wherein the impeller is composed of blades, blade frames and an impeller spindle; the blade frames are welded with the impeller spindle and are uniformly distributed along the impeller spindle radioactively in an equal part; the blades are hinged to the corresponding blade frames through corresponding hinges; the power generator is installed on the floating supporting platform; and an input shaft of the power generator is connected with an output shaft of the speed increaser. The vertical-axis shaft water flow power generation device is characterized in that a rotary support bearing is installed on the floating supporting platform; and the upper end of the impeller spindle is fixed in the rotary support bearing, sequentially passes through a universal coupling and a gear coupling and is connected with an input shaft of the speed increaser. The vertical-axis shaft water flow power generation device is light in weight, convenient in installation, better in starting and braking characteristics, strong in adaptation to environment and high in power generation efficiency.

The invention discloses an orthogonal magnetic circuit radial-axial-integrated magnetic bearing based on a symmetrical self-lubricating flexible backup bearing structure. A radial magnetic bearing coil of the orthogonal magnetic circuit radial-axial-integrated magnetic bearing is mounted on a stator tooth set of a stator iron core; two radial rigid magnetic-conductive rings are mounted at an outerdisc of the stator iron core so as to prevent the short circuit problem of permanent magnetic circuits, wherein a certain gap exists between the two radial rigid magnetic-conductive rings; an axial magnetic bearing coil is located at a thrust disc of a rotor shaft and mounted in a cavity formed by the two magnetic-conductive rings; graphite rings and backup bearing skeletons which achieve the axial self-lubricating effect are arranged on the two sides of the thrust disc correspondingly; and a radial backup bearing skeleton and a graphite internal convex ring are arranged in an inner ring cavity of a radial flexible magnetic conductive ring for achieving the radial self-lubricating effect. By adopting the technical means that axial and radial electromagnetic circuits are combined into a whole, and a radial magnetic bearing and a backup bearing are combined into a whole, the technical problem that traditional magnetic bearings are low in coaxiality is solved.

The invention provides an impact-resistant and anti-rebound sliding rail which comprises a static rail and a movable rail. The static rail comprises a top plate I, a base plate I and side plates I forming a sliding groove and is provided with a static rail first end and a static rail second end, and the static rail first end is used for installing a first pulley. The movable rail comprises a top plate II, a base plate II and side plates II, the top plate II downward extends to form an upturned edge. The movable rail is provided with a movable rail first end and a movable rail second end, the movable rail first end is used for installing a second pulley, at least two protrusions playing an impact-resistant buffering effect are formed on the inner wall of the top plate II and are of asymmetric structures, and the separation distance between the two adjacent protrusions is preset. A downward protruding stop portion I is formed on the inner wall of the top plate I, an upward protruding stop portion II is formed on the inner wall of the base plate II, the stop portion I and the stop portion II are located at the second end of the static rail, and a limiting portion for preventing the movable rail from rebounding and regressing is arranged on the inner wall of the top plate I in a protruding mode and is an elastomer of an asymmetric structure.

The invention discloses a lightweight rigid self-lubricating composite rope and a preparation method thereof, and relates to the field of ropes. The lightweight rigid self-lubricating composite rope comprises a rope core (1), a wrapping layer (2) and a plastic-coated layer (3), wherein the rope core (1) is of a multilayer helical structure with a circular cross section formed by spirally interweaving ultrahigh-molecular-weight polyethylene fiber rope yarn, layers are spirally and reversely arranged, the outer portion of parallel rope yarn of each layer is provided with a composite finishing coating, the ingredients in a composite finishing liquid on the cross section of the rope core (1) account for 10-30%, the outer portion of the rope core (1) is provided with the wrapping layer (2), andthe outer portion of the wrapping layer (2) is provided with the plastic-coated layer (3). The lightweight rigid self-lubricating composite rope and the preparation method thereof have the advantagesthat the cross section of the rope is circular, the strength-to-weight ratio is high, and the rope can completely replace a steel wire rope in the fields of huge weight hoisting and well drilling exploration.

The invention relates to a novel four-link hinge assembly, which is used for connecting a car body with a car door. The hinge assembly comprises a connecting plate, a four-link hinge movable plate, a first lining rod, a second lining rod, a hinge fixed plate and a fixed plate baffle. The connecting plate is welded on the side wall stand column of the car body. The four-link hinge movable plate is connected with the connecting plate. One ends of the first lining rod and the second lining rod are movably connected with the four-link hinge movable plate. The other ends of the first lining rod and the second lining rod are movably connected with the hinge fixed plate. The hinge fixed plate is connected with the fixed plate baffle. The hinge fixed plate is fixedly connected with the car door through bolts. Compared with the prior art, the novel four-link hinge assembly has the advantages of simple structure, large opening angle, high firmness and durability, no impact, small friction, long service life and the like.

The invention relates to the technical field of bearing pedestals, in particular to a self-lubricating bearing pedestal. The self-lubricating bearing pedestal comprises a bearing pedestal main body and a bearing bush arranged in a center axial hole of the bearing pedestal main body. A lubricating ring filled with lubricating oil is arranged inside the bearing bush. The lubricating ring communicates through the outside world through balls arranged on the inner wall of the bearing bush and used for guiding liquid. The inner wall of the bearing bush is provided with a notch for installation of the balls. The upper edge of the notch is provided with a bearing wall matched with the balls. The notch communicates with the lubricating ring through a corresponding oil conveying channel, the inner wall of the lubricating ring is coated with protection paint, the lubricating ring is provided with an oil injection hole, a sealing plug is arranged in the oil injection hole, traditional opening typeself-lubricating agent filling holes are replaced with the balls for guiding liquid, and lubricating agent is prevented from flowing out. Self lubrication for a rotating shaft is achieved through theballs making rolling contact with the outer surface of the rotating shaft, therefore, friction force between the rotating shaft and the bearing bush is reduced, and the transmission efficiency is improved during self lubricating.

The invention provides a Ti3AlC2-Fe alloy-based high-temperature-resistant self-lubricating composite material and a preparation method of the Ti3AlC2-Fe alloy-based high-temperature-resistant self-lubricating composite material, and belongs to the field of lubricating materials. The composite material is prepared by mixing and sintering raw materials and comprises the following raw materials of,by mass percentage, 25-50% of Ti3AlC and the balance of a Fe alloy. The Fe alloy comprises, by mass percentage, 1-15% of Cu powder, 0.1-5%% of Ni powder, 0.5-5% of Cr powder and the balance Fe powder.The Ti3AlC2-Fe alloy-based high-temperature-resistant self-lubricating composite material has the advantages of fatigue resistance, impact resistance, high temperature resistance, strong bearing capacity and the like, can achieve self-lubricating performance, reduces the friction coefficient, has better self-lubricating performance under high-temperature conditions, and is suitable for manufacturing a self-lubricating material under severe working conditions.

The purpose of the present invention is to provide an independent isolation and flushing system of double-end mechanical seals for centrifugal pumps, to overcome various defects and disadvantages of centrifugal pump mechanical seals during use, to improve the stability of mechanical seal operation, and to increase the resistance to harsh conditions. The adaptability to the working conditions prolongs the service life and meets the requirements of use. In order to achieve the above purpose, an independent isolation and flushing system for a double-end mechanical seal for a centrifugal pump is provided, which is characterized in that it includes a double-end mechanical seal, an isolation cavity assembly, a shaft sleeve and a sealing gland. In order to achieve the above purpose, it is also possible to provide an independent isolation and flushing system for double-end mechanical seals for centrifugal pumps, which is characterized in that it includes double-end mechanical seals, pumping structures, seal boxes, shaft sleeves, sealing glands and liquid storage tanks Assembly, liquid storage tank assembly is filled with spacer fluid for circulating lubrication and cooling. Above-mentioned two kinds of schemes can be implemented independently, reach the object of the invention independently, embody beneficial effect.

The invention provides a self-lubricating integrated clamp wheel for a sintering pallet, comprising a spacer ring and a clamp wheel clinging to the spacer ring. The clamp wheel is characterized by adopting the clamp wheel appearing as tube shape, respectively arranging solid lubrication cavities on the inner-bore wall as well as tube walls of two ends of the tube-shaped clamp wheel, embedding solid lubricant in the solid lubrication cavities and connecting the inner-bore of the tube-shaped clamp wheel with a shaft in a rotary manner. The solid lubrication cavities appear as spiral grooves, strip-shaped grooves and round holes. With the self-lubricating integrated clamp wheel for the sintering pallet, the precision of the clamp wheel is enhanced, workload of arrangement is reduced and production efficiency is raised. The structure of the invention is simple, the assembling process is convenient and the precision is high.

The invention provides a novel axial flow pump. The novel axial flow pump comprises an axial flow pump body and a seal assembly, wherein the axial flow pump body comprises a shell and a pump shaft; aguide pipe communicating with the interior of the shell is arranged on the top of the shell; an annular supporting part is arranged on the inner wall of the top end of the guide pipe; a rubber bearingmatched with the pump shaft is arranged in the guide pipe; the pump shaft comprises a shaft shoulder supported against the bottom end of the rubber bearing; the seal assembly comprises a first elastic adjusting part and a second elastic adjusting part; the first elastic adjusting part is arranged on the pump shaft in a sleeving manner and is located between the supporting part and the rubber bearing; the second elastic adjusting part is arranged on the rubber bearing in a sleeving manner and is located below the first elastic adjusting part; a buffer layer which is arranged on the rubber bearing in a sleeving and sealing manner is arranged between the first elastic adjusting part and the second elastic adjusting part; a containing cavity for placing filler is formed by the first elastic adjusting part, the buffer layer, the rubber bearing and the pump shaft in a surrounding manner; and wedge-shaped sealing rings are pressed between the first elastic adjusting part and the supporting part and between the second elastic adjusting part and the shaft shoulder. The novel axial flow pump has relatively good sealing property and cooling effect.

The invention belongs to the technical field of aviation, and relates to a bi-directional high load-bearing capacity wear-resistant mechanism. The bi-directional high load-bearing capacity wear-resistant mechanism is characterized by adopting a two-sided self-lubricating composite gasket and a deflection rocker arm with a self-lubricating wear-resistant bush to realize a bi-directional high load-bearing capacity wear-resistant function of the mechanism. The bi-directional high load-bearing capacity wear-resistant mechanism has beneficial effects that a simple replaceable structure is arranged between two structures which can slide relative to each other under a high load, and a simple permanent wear-resistant structure is arranged between two structures which slide relative to each other under a secondary high load, so that not only can the self lubrication of the mechanism be realized, but also a replacing mechanism is convenient to maintain and replace, and the slide abrasion problem of an airplane body structure under the high load can be thoroughly solved.

The invention provides a tool clamp for a special-shaped storage vehicle oil pump shell, and belongs to the technical field of machining clamps. The tool clamp comprises a rack, and a turnover mechanism is arranged on the rack; the base plate is connected with the turnover mechanism, and a machining station is arranged on the base plate; the pressing mechanism is installed on the base plate, and the pressing mechanism comprises a pressing assembly and a clamping assembly; the supporting mechanism is installed on the base plate, the supporting mechanism comprises a plurality of supporting assemblies, and the supporting assemblies are matched with the surface of the workpiece in a contact mode. The workpiece can be pressed and positioned before being machined through the pressing mechanism, vibration of the workpiece during machining can be avoided through the supporting mechanism, so that the machining precision of the workpiece is improved, in addition, the overturning mechanism drives the base plate to rotate, overturning of the workpiece is achieved, machining of different parts of the workpiece is achieved, and the machining efficiency is improved. The processing efficiency is improved; and the labor intensity is reduced.