31results about How to "Eliminate static friction" patented technology

A high performance hard disk drive is disclosed in which a flying read / write head runs in contact or in near contact with a rotating platter. In this design there is no wear of the hard disk platter or flying head due to both head and platter being coated with an amorphous carbon that has an exceptionally low coefficient of friction in a sealed, inert gas environment. The overcoat contains carbon in the range between about 52 and 80 atomic percent and hydrogen in the range between about 20 to 48 atomic percent. There is no lubricant required in this design, which eliminates a significant cause of hard drive failure from oxidation of the lubricant, stiction and rippling of the lubricant. This contact method achieves a high areal density with no wear, within a robust, hermetically sealed environment.

The present invention relates to a method for weighing an electrode submerged in the charge of an electric smelting furnace. The electrode is moved in vertical direction at least once, whereafter the electrode is lifted and the weight of the electrode is registered shortly after the electrode has been lifted.

A device for feeding packaging blanks (3) to a packaging machine has a magazine with two shafts (7) mounted at the bottom for supporting the blanks (3). The shafts (7) are brought to rotate at constant speed in opposite directions to each other, hence eliminating the static friction from the bottom of the magazine. An angle is formed between the shafts (7), so that a small, forwardly directed force component contributes to the movement of the blanks (3). The dynamic friction is used to move blanks (3) towards a gate (2) at the end of the magazine, and only a small, constant feeding force (A) from a pusher is necessary for the movement.

The invention relates to an underground friction and resistance reducing tool and method based on mechanical decoupling, and belongs to the technical field of oil and gas resource drilling tools. The invention discloses an underground friction reduction and resistance reduction tool and method based on mechanical decoupling. The underground friction reduction and resistance reduction tool comprises an upper shell, a lower shell, a lower connector and a drilling fluid return pipe. An unloading connecting assembly I, a torque axial reversing assembly and an unloading connecting assembly II are sequentially arranged in the lower shell. A transfer positioning device I, a power input device, a torque increasing device I, a transfer positioning device II, a power separation device I, a torque increasing device II, a transfer positioning device III, a power separation device II, a torque increasing device III, a transmission shaft I and a transmission shaft II are sequentially arranged in the upper shell. The working torque of the downhole friction and resistance reducing tool is controlled by directly adjusting the drilling speed of a drill column through ground operators, so that sliding guide drilling under the condition that the drill column rotates is achieved, and the technical problems that the friction resistance of the drill column is high, backing pressure is serious, the mechanical drilling speed is low, and a horizontal section is difficult to extend are solved.

The invention discloses a flexible yarn clearing device for yarn spooling processing, and relates to the technical field of yarn spooling production and manufacturing. The problem of poor cleaning quality is solved. The flexible yarn clearing device specifically comprises a machine body, wherein first electric sliding grooves are formed in the inner walls of the opposite sides of the machine bodycorrespondingly, and the inner walls of the two first electric sliding grooves are provided with a same upper die base. A lower die base is arranged on the outer wall of the top of the machine body, the outer wall of the top of the lower die base and the outer wall of the bottom of the upper die base are each provided with four or more lead grooves, the inner walls of the four or more lead groovesare each of a wavy structure, and the lower die base and the upper die base are matched. The inner walls of the opposite sides of the four or more lead grooves located in the lower die base and the four or more lead grooves located in the upper die base are each provided with a protective layer in an adhesive mode. According to the flexible yarn clearing device, sponge is wetted by water in a water tank, and a rotating roller on the lower die base is wetted by the sponge when rotating, so that yarns are wetted when making contact with the rotating roller during conveying, friction static electricity of the yarns is eliminated, impurities are prevented from being adsorbed in the later period, and the cleaning quality is guaranteed.

The invention discloses a storage device for optical fiber and cable processing. The storage device comprises a support, a first cable storage wheel set, a second cable storage wheel set, a guide mechanism and a driving mechanism. The first cable storage wheel set and the second cable storage wheel set are mounted on the support, and the guide mechanism is located at one end of the support. The driving mechanism is arranged at the other end of the support. A wheel disc is rotationally connected with a core shaft through at least one bearing. The first cable storage wheel set is mounted on thesupport through a mounting base, and at least one sliding rail is mounted at the position, below the mounting base, of the support. A sliding block for being embedded into the sliding rail is mountedon the lower surface of the mounting base. One side of the mounting base is connected with a piston rod of an air cylinder. A surge tank is connected with the air cylinder through a precision adjusting valve, and used for providing constant thrust for the air cylinder. According to the storage device, static friction force, generated when a cable generates lateral pressure on a guide wheel, between the guide wheel and a rotary shaft is eliminated, so that the cable passing through the guide wheel is kept at constant tension without being influenced by the guide wheel.

The invention discloses a constant tension cable storage system for optical fiber cable processing, which comprises a support, a first cable storage wheel set, a second cable storage wheel set, a guiding mechanism and a driving mechanism. The first cable storage wheel set and the second cable storage wheel set are arranged on the support, the guiding mechanism is located at one end of the support,and the driving mechanism is arranged at the other end of the support. The first cable storage wheel set and the second cable storage wheel set are each further provided with a mandrel and a plurality of wheel discs sleeving one end of the mandrel. The lower surface of the support is provided with a sliding block for insertion of a sliding rail. One side of the support is connected with a pistonrod of a cylinder, and a surge tank is connected to the cylinder through a precision pressure regulating valve so as to provide a constant thrust to the cylinder. The constant tension line storage system provides constant tension for the cable, thus not only preventing the cable from being broken due to excessive tension or being loosened due to lack of tension, but further ensuring that the tension of the cables during the storage process is always dynamically balanced to the optimal tension state. Accordingly, the stability of cable processing is guaranteed.

The invention discloses a ground tilt monitoring device .The ground tilt monitoring device comprises a device shell, a suspension frame and a processing circuit board are arranged in the device shell, two capacitive sensors are orthogonally arranged on the suspension frame, each capacitive sensor comprises capacitor stators, capacitor rotors and pendulum bobs, the capacitor stators are arranged on the two sides of the capacitor rotors at equal intervals, the capacitor stators and the capacitor rotors are horizontally arranged on the same horizontal plane, the capacitor stators are arranged on the suspension frame, the pendulum bobs are arranged on the suspension frame in a hanging mode and arranged on the lower portions of the capacitor rotors to be in rigid connection with the capacitor motors, the capacitive sensors are electrically connected with the processing circuit board respectively, and a zero setting mechanism is further arranged on the suspension frame .According to the ground tilt monitoring device, when zero setting is conducted, the two capacitive sensors do not influence each other, the pendulum bobs drive the capacitor rotors to move to change the space between the capacitor rotors and the capacitor stators so as to produce capacitance variable quantity, and the influence of static friction force of pendulum bobs in the prior art is eliminated; the ground tilt monitoring device is mainly used for monitoring earth tides, earthquake precursors and tilting deformation of an earth crust, and the ground tilt monitoring device is simple in structure, good in stability, high in precision and high in output linearity.

The invention discloses a forming mold for a U-shaped spring. The forming mold comprises an upper die and a lower die, wherein the lower die comprises a lower die body, forming pin rollers, a lower die protruding block and a limiting spring; a forming cavity with an opening in the upper part is formed in the lower die body; the upper die is arranged in the forming cavity; two square holes are formed in the left side and the right side, close to the top edge, of the lower die body respectively; the forming pin rollers are arranged in the square holes in the left side and the right side respectively; and the sides, away from the middle of the lower die body, of the forming pin rollers are connected with limiting springs, and the other ends of the corresponding limiting springs are fixed to the side ends of the lower die body on the corresponding sides. According to the U-shaped spring manufactured through the method, the thickness of the formed U-shaped spring cannot be reduced, and the product force value performance of the U-shaped spring is prevented from being affected; and the U-shaped spring is prevented from being trumpet-shaped after being formed, the risk that a product is separated from a test tool when a force value is tested is prevented, and safety accidents are prevented.

The invention discloses a high-efficiency and energy-saving material grinder which comprises a rack, a feeding mechanism, a cutter component, a cutter adjusting device, a discharging device and an air cooling device. The feeding mechanism comprises a storage bin, a uniform feeder, a pusher plate and a stepping drive component for driving the uniform feeder and the pusher plate to move materials intermittently. The cutter component comprises a fixed cutter bed and a movable cutter drum, which have arc-shaped parallel working surfaces and are coaxial to each other. The cutter adjusting device comprises a gap measurement and control component, a horizontal adjustment mechanism and a vertical adjustment mechanism; the horizontal adjustment mechanism and the vertical adjustment mechanism are connected with the fixed cutter bed and push the fixed cutter bed to move; and the gap measurement and control component dynamically measures the gap between the fixed cutter bed and the movable cutter drum and controls the motions of the horizontal adjustment mechanism and the vertical adjustment mechanism. The discharging device comprises a discharge passage, a discharge plate and a vibrator. The air cooling device comprises an arc-shaped guide jet device and an exhaust duct, the arc-shaped guide jet device is provided with an air inlet and a plurality of jet holes facing the working surface of the movable cutter drum. The material grinder has the advantages of high efficiency, low energy consumption, long cutter life and high product quality.

A control system of electroslag furnace is composed of power supply unit, primary signal unit, regulating trigger unit and auxiliary circuits. The main contactor and Scott synchronous transformer are connected to lower terminals of protecting switch for power supply unit. An auto-coupled Scott rectifying transformer has the input connected to main contactor and two outputs connected two SCR modules. The terminal 2219 of regulating trigger unit is serially connected to speed regulator, IE adder, static circulating current eliminator, shift circuit, pulse chip and pulse transformer.

The invention belongs to the field of lens cleaning and discloses a component, a system and a method for cleaning lens. The component for cleaning lens provided by the invention comprises an ion module, a first clamping module, a spraying module and a second clamping module. The spraying module performs spray wash on the surface of the lens by atomized alcohol, and a cleaning material is clamped by the first clamping module and the second clamping module to remove the impurity on the surface of the lens after spray wash. The surface of the lens is dried by the ion module and the frictional static on the surface of the lens is eliminated. The cleaning efficiency is high and the lens can be cleaned more cleanly without scratch on the surface of the lens. In addition, the cleaning method is simple and the operation is easy.

The invention discloses a manufacturing method of a U-shaped spring for elevator security pincers. The manufacturing method is that a spring steel bar is heated through a heating die applied to an induction furnace, and the U-shaped spring is formed under oil pressure effect through a forming oil pressure device for the U-shaped spring. The manufacturing method comprises the steps of (1) blanking, namely, processing bar steel into a spring steel bar with the specified length through a blanking machine; (2) heating the spring steel bar, namely heating the spring steel bar through the heating die applied to the induction furnace; (3) forming the U-shaped spring, namely, forming under the oil pressure through the forming oil pressure device for the U-shaped spring; (4) vibrating and chamfering, namely, vibrating the pressed and formed U-shaped spring through a grinding vibration machine together with grinding materials; (5) milling; (6) thermally processing the U-shaped spring, quenching and tempering; (7) performing surface finish. The U-shaped spring manufactured by the method has the advantages that decarburized layers of the spring are minimized, the oxidizing rate is low, the consistency of the mechanical properties is high, the service life is long, the spring is difficulty clamped on the forming die during discharging, and the manufacturing is energy saving and environmentally friendly.

The invention relates to a cement mixing pile body quality monitoring system. The cement mixing pile body quality monitoring system comprises a rotation pouring type cement pile construction machine. The rotation pouring type cement pile construction machine comprises a rack. The rack is vertically provided with multiple rotary grouting pipes. The top ends of the rotary grouting pipes are connected with the tail end of a cement paste conveying pipe. The cement paste conveying pipe is provided with a cement paste flow meter. A meter counting wheel is closely attached to the peripheral side of the rotary grouting pipes and connected with a fixing frame arranged on the rack. A quality monitoring processor is further included and electrically connected with the meter counting wheel and the cement paste flow meter. The quality monitoring processor judges whether a cement mixing pile body is qualified or not according to the rotary grouting pipe feeding length collected by the meter counting wheel and the cement usage amount collected through the cement paste flow meter. The cement mixing pile body quality monitoring system automatically judges whether the cement mixing pile body is qualified or not according to the collected information so that remedial measures can be taken before curing of the cement mixing pile body, and benefits of customers are guaranteed.

The invention discloses a flexible yarn clearing device for yarn winding processing, and relates to the technical field of yarn winding production and manufacturing; in order to solve the problem of poor cleaning quality; it specifically includes a machine body, and the inner walls of the opposite sides of the machine body are equipped with There is a first electric chute, and the inner walls of the two first electric chutes are provided with the same upper mold base; the top outer wall of the body is provided with a lower mold base, and the top outer wall of the lower mold base and the bottom outer wall of the upper mold base are both There are more than four lead grooves, and the inner walls of more than four lead grooves are all wave-shaped structures. The lower mold base and the upper mold base are matched. The inner walls of the opposite sides of the four or more lead grooves are all bonded with a protective layer. The sponge of the present invention is soaked by the water in the water tank, and the rotating roller on the lower mold base is soaked by the sponge when it rotates, so the yarn is soaked when it contacts the rotating roller during transmission, thereby eliminating its frictional static electricity and avoiding the absorption of impurities in the later stage. Guaranteed cleaning quality.

A control system of electroslag furnace is composed of power supply unit, primary signal unit, regulating trigger unit and auxiliary circuits. The main contactor and Scott synchronous transformer are connected to lower terminals of protecting switch for power supply unit. An auto-coupled Scott rectifying transformer has the input connected to main contactor and two outputs connected two SCR modules. The terminal 2219 of regulating trigger unit is serially connected to speed regulator, IE adder, static circulating current eliminator, shift circuit, pulse chip and pulse transformer.