139 results about "Low friction" patented technology

A dry gas seal assembly for use with a rotating machine that includes a rotating shaft, the seal assembly comprises a seal face bears a solid coating comprising molybdenum disulfide, graphene oxide, and optionally polydopamine, preferably wherein the graphene oxide to molybdenum disulfide ratio is 8:10 to 10:8. A method for making a dry gas seal assembly comprises coating a homogeneous dispersion of graphene oxide and molybdenum disulfide on a seal face.

This utility model discloses a telescopic pressing head for correction tape, relating to the field of correction tape technology. The telescopic pressing head provided by this utility model includes a tape outlet head, with protective plates at both ends. A sliding plate is connected to one side of the tape outlet head, and a first connecting plate is provided on the top of the sliding plate. Rotating shafts are connected to both ends of the first connecting plate, and a second connecting plate is connected to the other end of the rotating shafts. This utility model, by rotating a first rotating rod, causes a third connecting plate to rotate around the first rotating rod, causing a pulley to slide inside a first sliding groove, thereby rotating the second connecting plate and driving the sliding plate to telescopically move. The cooperation of these components results in low friction and low resistance during movement, achieving smooth movement and ensuring stable operation of the correction tape during telescopic and tape-out operations, avoiding damage caused by shaking or misalignment of the exposed tape outlet head.

The application provides a low-friction high-wear-resistance resin-based composite material and a preparation method and application thereof, and belongs to the field of composite materials. The polytetrafluoroethylene nano powder modified by radiation is used together with inorganic filler particles such as graphite nano powder, molybdenum disulfide nano powder and the like to prepare a polyphenylene sulfide-based composite material at a certain compounding ratio. The composite material shows excellent tribological properties. On this basis, by adding a chopped carbon fiber and the like as a reinforcing filler, a high-strength, low-friction high-wear-resistance polyphenylene sulfide-based composite material is prepared by using a multi-scale functional filler network structure constructed inside the composite material. The technical process route of the application is simple, and the manufacturing cost is low. The application can be used for preparing friction protection parts, low-friction wear-resistant structures, wear-resistant bearings, self-lubricating parts, mechanical gaskets and the like under dry friction, and has a very broad application prospect in the fields of aerospace, transportation, electronic devices and high-end mechanical equipment.

A garment includes a sleeve of material and a first securing element. The material includes a contact surface that is low friction when in contact with a surface of a human body. The first securing element is attached to the sleeve of material secures a first end of the sleeve of material to an arm of a wearer of the garment. Additionally, the first securing element limits movement of the sleeve of material along the arm when the sleeve of material is in contact with the surface of the human body.

The application discloses a kind of ultra-wear-resistant high molecular sliding materials ZMSM, belong to high polymer composite material and structural bearing technical field;The sliding material is made by ultra-high molecular polyethylene and a variety of functional additives by blending, forming process;The additive includes one or more of glass bead / glass fiber, carbon fiber, graphite, carbon black, coupling agent, stabilizer, lubricant, anti-wear agent, anti-aging agent and anti-chemical corrosion agent;The material of the application has excellent sliding characteristics, high allowable pressure, wide temperature range adaptability, very low friction coefficient and ultra-long service life, especially suitable for high-speed, high-load, wide-temperature-range working conditions under structural bearing, sliding plate, support and other fields.Compared with traditional polytetrafluoroethylene sliding material, the allowable pressure of the material of the application is increased by 2 times, the cumulative sliding displacement life is increased by more than 5 times, the applicable temperature range is expanded to-50°C~+70°C, and the wear rate is significantly reduced under high-speed motion conditions;The application also discloses the preparation process of the material, and the process is simple and easy to industrial production.

This utility model relates to the field of waterjet cutting machine technology and discloses a high-pressure CNC waterjet cutting machine, including a water collection tank and two processing tables set at its top. A lead screw is rotatably connected between the front end of each processing table and the bottom of the water collection tank. This high-pressure CNC waterjet cutting machine achieves automated lifting and transport of heavy plates through a linkage structure between the lifting frame and the lead screw. Compared with traditional manual handling methods, the multiple rollers equipped on the lifting frame can form a rolling conveying surface during lifting. Combined with the distributed ball bearings on the support grid, the plate can be smoothly transferred to the processing table with low friction, effectively solving the difficulties and safety hazards caused by the weight of heavy plates. Furthermore, the tiltable and adjustable safety railing assembly, through the precise cooperation of the limiting rod and the limiting groove, forms a three-dimensional protective barrier during lifting, avoiding the risk of the plate slipping.

The utility model relates to the technical field of paint stripping machine, concretely relates to a kind of end cutting assembly for four-side paint stripping machine, including frame, the cutting mechanism for being located in frame and being used to cut off copper coil end, the cylinder for being used to drive cutting mechanism lifting and being installed on frame, the pressing mechanism for being used to press and fix copper coil and being installed in one side of frame, the base for being installed in frame and cooperating cutting mechanism, pressing mechanism operation;This kind of end cutting assembly for four-side paint stripping machine cooperates through pressing mechanism and cutting mechanism, realizes the efficient, stable cutting of copper coil paint stripping end, the cooperation of clamping piece a and clamping piece b can firmly fix copper coil, prevent displacement when cutting, ensure cutting accuracy;Cylinder drives tool holder and cutting tool to descend along guide pillar, action is stable, powerful, guarantee cutting quality, and the setting of copper sleeve can reduce friction, prolong service life.

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.

A motion simulator system is disclosed that includes a freely rotatable movable frame supported by, but unattached to, a hemispherical base. The movable frame comprises a spherical enclosure constructed from rigid, lightweight materials such as composite materials or interlocking panels, providing unlimited 360-degree rotation in all three rotational degrees of freedom (pitch, roll, and yaw). An internal actuator system coupled to the movable frame controls attitude positioning while the center of rotation remains substantially fixed relative to the base. Low friction engagement between the movable frame and base is achieved through transfer bearings integrated into the base's outer surface or by pressure-vented air cushions. The system enables smooth, continuous rotation of the untethered movable frame for enhanced motion simulation applications.

This utility model relates to a spherical bearing structure suitable for bridges, comprising, from top to bottom, a beam, a bearing unit, and a pier. The bearing unit, from top to bottom, includes an upper bearing and a lower bearing. A spherical crown is provided between the bottom middle section of the upper bearing and the top middle section of the lower bearing. U-shaped anti-fall beams are connected to both ends of the bearing unit. Upper friction steel plates are embedded in the upper bearing, lower friction steel plates are embedded in the lower bearing, and side friction steel plates are embedded in the upper support column, then installed together through a connecting layer and secured on the outside with reinforcements. This utility model, through its embedded method, allows for pre-setting the installation position and shape of the friction steel plates on the bearing or support column, accurately controlling the installation precision of the friction steel plates, ensuring their surface flatness and levelness, and facilitating the normal operation of the bearing.

The application discloses an insulating paint for transposed conductor and a preparation method thereof, and belongs to the technical field of insulating materials for transposed conductor.The insulating paint comprises the following components in parts by weight: 100-120 parts of base resin, 2-5 parts of thermal stabilizer, 1-3 parts of leveling agent, 0.5-2 parts of curing accelerator, 60-100 parts of organic solvent, 8-12 parts of functional filler, and 6-10 parts of inorganic agent based on lanthanum oxide-graphene nanosheet double coordination.The insulating paint has high electrical insulation, high thermal conductivity and low friction coefficient, can significantly reduce internal stress of the transposed conductor during bending transposition, improve the short-circuit resistance and heat dissipation efficiency of the coil, and prolong the service life; meanwhile, the performance stability is excellent under different ultraviolet intensities and different corrosion degrees, the comprehensive coordination is prominent, and the insulating paint is suitable for the insulating protection requirements of the transposed conductor for high-voltage and large-capacity transformers and motors.

The utility model discloses a kind of rolling low friction deflector, belong to prestressed variable angle tensioning device technical field, solve the problem that the friction between steel strand and deflector in existing deflector is sliding friction, friction resistance is big, leading to the problem of big friction loss. It includes at least one fan-shaped steel plate, at least one layer of guiding structure is arranged on the steel plate along its radial direction, each layer of guiding structure includes multiple rollers, multiple rollers corresponding to each layer of guiding structure are distributed in the circumferential arc line of steel plate, each roller is rotatably connected with the steel plate. The rolling low friction deflector of the utility model can greatly reduce the friction resistance of prestressed tensioning, reduce engineering cost.

The application provides a packaging equipment for composite floor production, and belongs to the technical field of composite floor packaging. The equipment comprises a machine body, a conveying guard plate is installed on the inner wall of the machine body, a conveying frame is installed on one side of the machine body, a support is installed at the bottom of the conveying frame, a conveying belt is rotatably connected to the inside of the conveying frame, a control center is installed at one end of the machine body, a driving motor is installed at the end of the support, and a conveying belt is rotatably connected to the inner wall of the conveying guard plate. A detection and treatment assembly is installed on the inner wall of the conveying frame, and the detection and treatment assembly is used for detecting the weight of the composite floor and blowing the bottom surface. The detection and treatment assembly and the packaging treatment assembly are arranged, the risk of scratches caused by friction is reduced, dust is cleaned, the tension of the conveying belt is adjusted, the integrity of the floor is protected, the adaptability of the packaging equipment is improved through the multi-adaptive adjustment of the wrapping plate, and the packaging efficiency is improved.

The application discloses a high-temperature-resistant and wear-resistant diamond saw blade and a preparation process thereof, and relates to the technical field of diamond saw blades. The saw blade is composed of a diamond cutter head and a steel base body, the diamond cutter head is made of an iron-based alloy matrix and diamond particles through hot-pressing sintering, and the iron-based alloy matrix is composed of the following components in a mass ratio: Fe 45-65 parts, Cu 10-20 parts, Ni 5-10 parts, Co 3-8 parts, Sn 2-6 parts, Cr 2-8 parts, Mn 1-5 parts, WC 5-12 parts, rare earth elements 0.1-0.5 parts and high-temperature solid lubricant 0.5-2 parts. Through the addition of the high-temperature solid lubricant, a self-lubricating film can be formed on the surface during the cutting of the saw blade, the friction coefficient is greatly reduced, the generation of cutting heat is effectively reduced, the high temperature generated during the cutting of the cutter head can be quickly conducted to the steel base body and dissipated, and the local overhigh temperature of the cutter head is prevented from causing the carbonization failure of the diamond.

The utility model belongs to the technical field of mining equipment, concretely relates to a quick-release type super-low-resistance chute anti-blocking device, chute is detachably provided with low-resistance lining plate made of material with low friction coefficient, the low-resistance lining plate is arranged along the flow direction of material, the bottom of chute is provided with clamping groove, the low-resistance lining plate is placed in the inner side of clamping groove, and the groove bottom of chute is provided with the pressing plate threadedly connected therewith. The utility model has the advantages that the low-resistance lining plate with low friction coefficient is arranged on the chute, direct contact of material with the chute made of steel plate material is avoided, the friction coefficient in the flow process of material is reduced, and the material is prevented from accumulating in the inner side of chute; the low-friction property of the high-molecular lining plate plays a key role; the detachable design of the device greatly shortens the single cleaning time and reduces the artificial cleaning workload; meanwhile, the frequency of high-altitude operation is reduced, the safety risk caused by high-altitude operation is effectively avoided, and the personal safety of workers is ensured.

The utility model discloses a kind of sampling devices for coalfield geological exploration, comprising: metal cylinder, the top of the metal cylinder is threadedly connected with screw cap, two handles are fixed symmetrically outside the screw cap, sampling hole is provided in the bottom side of the metal cylinder, sampling collection piece is fixedly installed in the inside of the metal cylinder, sampling collection groove is provided in the outside of the sampling collection piece, the sampling collection groove is communicated with sampling hole, the outside of the metal cylinder is provided with scale line;Sampling plugging structure, slidingly installed in the inside of metal cylinder, and cooperate with sampling hole, sampling hole is plugged when not using.This device is through low friction transmission, dynamic plugging, composite power coupling and so on innovative design, realizes the integrated operation of efficient drilling, accurate depth control, leakproof collection in the process of coalfield geological sampling, significantly improves the sampling reliability and operation efficiency under complex geological conditions, while reducing maintenance cost.

The present application relates to a kind of sliding type hall ramp structure and construction method, the structure includes: multiple ramp sliding support, corresponding setting in the corresponding lower main body structure of hall platform, ramp foundation, the top of multiple ramp sliding support is equipped with a low-friction sliding liner;Ramp bearing portion, including first steel tray and second steel tray, first steel tray is horizontally arranged on the ramp sliding support above lower main body structure, and at least one side is fixedly connected with upper main body structure, second steel tray is obliquely arranged on the ramp sliding support above ramp foundation, and the bottom of first steel tray and second steel tray is with the low-friction sliding liner of corresponding position ramp sliding support top abutment cooperation;Concrete layer, pouring filling in multiple open cavities.The structure can slide relative to lower structure as a whole when earthquake comes, effectively avoid the collision extrusion damage between ramp structure and main body structure, guarantee the structural integrity and use safety of hall ramp.

The application belongs to the technical field of mechanical structure vibration control, and particularly relates to a structure multidirectional self-adaptive friction and collision composite damping system and a damping method. The system comprises a hemispherical stable base, a hemispherical cavity container installed on the hemispherical stable base, a bearing assembly connected in the hemispherical cavity container, an arc-shaped track with a limiting baffle rotatingly connected in the hemispherical cavity container through the bearing assembly, and a rolling ball placed in the arc-shaped track and freely rolling along the arc-shaped track. The hemispherical cavity container is arranged, and the bearing assembly is matched, so that the arc-shaped track can realize 360-degree free rotation in the hemispherical cavity with very low friction resistance. When a building or a tower drum encounters sudden change of wind direction or complex seismic wave excitation in multiple directions, the track can rely on the inertial force of the rolling ball to quickly and automatically yaw to the damping direction consistent with the external load. On the other hand, the limiting baffle collides with the rolling ball to dissipate energy, thereby overcoming the poor multidirectional adaptability of the traditional damper.

The application discloses a method for electroplating a Ni-P-Fe2O3-PTFE composite lubricating layer on the surface of an aluminum nitride base material, which comprises the following steps: performing composite acid liquid micro-etching and roughening treatment on the base material; preparing a gradient transition layer with gradually changed phosphorus content; performing electroplating in a plating solution containing modified Fe2O3 particles and PTFE by adopting a periodic reverse current and intermittent ultrasonic coupling process; and finally performing two-stage heat treatment. By constructing a unique structure of a PTFE lubricating network and Fe2O3 interface pinning, the application synchronously realizes strong combination (Lc2> 50 N) of the plating layer and the base material, high hardness (HV> 400), low friction (μ< 0.12) and excellent wear resistance, effectively solves the problem of the contradiction between poor combination of the metal lubricating layer on the surface of the aluminum nitride and performance, and the process is stable and controllable and suitable for complex-shaped parts.

The utility model relates to the field of film processing especially a precision slitting machine for film processing, including support component, including film slitting machine body, the inside of film slitting machine body is provided with anvil roll, the inside of film slitting machine body is provided with slitting knife, the inside of film slitting machine body is provided with drive assembly, the inside of drive assembly is provided with support assembly, utilize two support blocks to support the one end of slitting knife far from drive source, the cylinder rolls between the raceway of slitting knife and mounting block, bears load and realizes low friction rotation, carries out even distribution to pressure, reached the effect that the one end of slitting knife far from drive source was supported, made slitting knife rotate more stable, when carrying out high accuracy cutting to film, need not sacrifice speed, made film slitting efficiency faster, the reinforcement plug is inserted in two vertical boards inside, further fixed to the abutment two support blocks.

The application relates to a sealing device for an automatic compensation shaft and a use method thereof, which is located between the automatic compensation shaft and a sealing fitting hole, is used for preventing mutual leakage of flow on both sides of the automatic compensation shaft, has a split type sealing module and a compression overlapping sealing module, and controls oil is introduced into the sealing device through damping holes on the split type sealing module and the compression overlapping sealing module to realize hydraulic oil film supporting and lubricating functions, so that reliable low-friction sealing can be realized in a rotating or reciprocating state; the split type sealing module and the compression overlapping sealing module are modularized, split type installation is adopted, and assembly and disassembly are convenient. Compared with the prior art, the application has the advantages of convenient processing, compact structure, simplicity, easy installation, convenient adjustment, simple maintenance, batch production and the like.

A rolled bearing with an internal and external conductive structure includes a body and at least one through hole disposed on the body. The body is a multi-layer composite structure, including a low-friction layer and at least one conductive mesh disposed on the low-friction layer. One end of the low-friction layer with the conductive mesh is a conductive surface, and the other opposite end is a non-conductive surface. The through hole is formed by punching the body and has multiple extensions extending from the conductive mesh and multiple bent sections disposed at one end of the extensions. The extensions pass through the through hole and extend to the non-conductive surface. The bent sections are bent and connected to the extensions and are close to the non-conductive surface. The length of the extensions is greater than the depth of the through hole to form a conductive channel connecting the inner and outer sides of the body.

This utility model relates to the field of rolling bearings and discloses a rolling bearing with a cage incorporating graphite. The bearing includes an inner ring, a mounting base fixedly disposed on the outer surface of the inner ring, and multiple mounting holes on the upper and lower end faces of the mounting base. Rollers are rotatably disposed within each of the mounting holes, and a graphite layer is fixedly disposed on the outer surface of each roller. An outer ring is rotatably disposed on the outer surface of each roller. The inner ring is made of high-carbon chromium bearing steel. In this utility model, the most important structure during use is the roller, which is the rolling element of the entire bearing. During use, the outer surface of each roller is covered with a graphite layer. The graphite layer itself has extremely low friction and good anti-sticking ability, allowing the roller to act as an emergency lubricant after the lubricating medium is used up, preventing the roller from "seizing up." This allows the device to continue operating for a period of time after the lubricating medium is depleted without directly seizing and causing damage.

The utility model provides a kind of swing arm tension mechanism for printing equipment, comprising: at least one material roller 50 and the tension transmission unit of being connected with the material roller 50 and the tension of the material roller 50 is transmitted;With the tension transmission unit is connected and the tension transmission unit is buffered, and the tension buffering unit includes low friction air cylinder 21, and the low friction air cylinder 21 is adjusted by air cylinder core 22 within a certain length range telescopic for the tension of the material roller 50.

This invention discloses a sliding hinge support and construction method for a prefabricated staircase, relating to the field of prefabricated building construction technology. It involves setting up multiple guide components, multiple infill bodies, a sliding mechanism, and a shock-absorbing mechanism, so that the upper and lower ends of the prefabricated staircase are both supported on an external load-bearing beam. The guide components pass through sliding holes and extend into the infill space, and the top of the guide components is fixed to the prefabricated staircase by the infill bodies. The prefabricated staircase is not rigidly welded or bolted to the load-bearing beam, but rather a sliding surface composed of sliding components is provided. The prefabricated staircase can then slide horizontally with a low coefficient of friction relative to the infill components (i.e., relative to the external load-bearing beam) through the sliding medium layer in the sliding components. This relative sliding displacement releases the deformation constraints at the connection nodes, avoiding stress concentration at the nodes caused by forced displacement. The sliding stroke provided by the sliding components effectively absorbs inter-story displacement, protecting the main structure of the prefabricated staircase and the connection nodes from damage.