41results about How to "Reduce direct friction" patented technology

An oscillation buoy power generation device comprises a buoy floating on the sea surface, and power generation assemblies, and further comprises at least one limiting rod installed on the upper end face of the buoy. Spiral grooves are formed around the outer walls of the limiting rods in the length direction of the limiting rods. Each power generation assembly comprises a driving gear installed in cooperation with the corresponding limiting rod, at least one driven gear engaged with the driving gear, and a power generator connected with a hub of each driven gear. Each driving gear comprises a hollow shaft sleeve. Gears are arranged around the outer walls of the hollow shaft sleeves. Transmission pins are arranged on the inner walls of the hollow shaft sleeves. The limiting rods are inserted in the hollow shaft sleeves. The transmission pins are installed in the spiral grooves in an inserted manner and can move along the spiral grooves. According to the novel mechanical oscillation buoy power generation device, the structure of the spiral grooves is designed, rotation, along the spiral grooves, of the driving gears is converted into electric energy of the electric generators through the driven gears, and compared with a traditional wave energy power generation device, the structure is simplified, flexible and reliable, and a stable power generation effect can be achieved.

The invention relates to the technical field of glass processing production and discloses an automatic cleaning device. The automatic cleaning device is characterized by comprising a supporting frame, a fixing plate is arranged on the supporting frame, guide wheels are mounted on the fixing plate, a cleaning cabinet is arranged on one side of the supporting frame, a motor is arranged below the cleaning cabinet, an air blower is connected on the motor, an air outlet is arranged above the cleaning cabinet, a water spraying port is arranged on one side of the air outlet, a water supply pipe is connected on the water spraying port, a conveying device is arranged on one side of the fixing plate, and the cleaning cabinet is of a structure in the shape of a Chinese character 'ao'. The automatic cleaning device is reasonable in structure, simple to mount, convenient to use and good in using effect.

The invention relates to a numerically controlled large engine crankshaft grinder, which comprises a main bed, an axial grinding machine movement track is arranged on the main bed, an axial moving carriage is slidably connected with the axial grinding machine movement track, and a grinding machine assembly is slidably connected with the axial moving carriage; a main track is arranged on the main bed, a spindle head mechanism and a spindle tail mechanism are slidably connected with the main track, a first driver is connected with the bottom of the spindle head mechanism, the spindle head mechanism comprises a spindle box and a spindle mounted in the spindle box, a fixture mechanism is fixed on the front end of the spindle, an oil distributor is fixed on the rear end of the spindle, a motor rotor and a motor stator which cooperate with each other and are arranged in the spindle box are sleeved on the spindle, and the center of the front end of the spindle is provided with a centre. The numerically controlled large engine crankshaft grinder increases production efficiency, and provides a reliable guarantee for product quality.

The invention discloses a preparation method of a self-lubricating microcapsule/MC nylon composite material. The preparation method comprises the following steps: 1, preparing a microcapsule shell layer precursor, 2, preparing a microcapsule core layer precursor, 3, adding the microcapsule core layer precursor into the microcapsule shell layer precursor, carrying out mixing, cleaning and drying toobtain a liquid paraffin/polyethersulfone microcapsule, 4, heating caprolactam CL to be completely molten, and then adding the liquid paraffin/polyethersulfone microcapsules obtained in the step 3 into the melt, 5, adding a catalyst and an activating agent into the melt, and carrying out stirring to obtain a to-be-polymerized system of MC nylon monomers and microcapsules, and 6, pouring the to-be-polymerized system obtained in the step 5 into a mold, carrying out heat preservation for t3, and cooling and demolding after the reaction and curing are completed, so as to obtain the required self-lubricating microcapsule/MC nylon composite material. The oil-containing microcapsule prepared by the invention is used as a filler and is added into MC nylon prepared by anionic ring-opening polymerization, so that the self-lubricating property of the MC nylon is improved, and the wear rate is reduced.

The invention provides an experimental apparatus capable of automatically loading the full section of rock. The objective of the invention is to design an experimental apparatus capable of carrying out automatic three-direction static-dynamic coupled loading on rock. The experimental apparatus comprises a fixed outer frame, a lateral hydraulic cylinder group, a top hydraulic cylinder group, a transverse hydraulic cylinder group, a material loading track, a frame-type material loading structure and a self-adaptive elastic roller structure, wherein the lateral hydraulic cylinder group and the top hydraulic cylinder group are fixed on the fixed outer frame; the frame-type material loading structure comprises a motor, a motor fixing plate, a driven fixing plate, a material discharging plate, a connecting rod, a synchronous transmission belt and wheels. According to the invention, the apparatus provides large-tonnage static-dynamic coupled load via the hydraulic cylinder groups so as to realize loading on square rock; the self-adaptive elastic roller structure and frame-type material loading structure enables material loading to be more convenient; the control parts of the apparatus are operated by operators on a host computer, so automation is realized; so the apparatus is a convenient, stable and efficient automatic loading device for rock simulation experiments.

The invention relates to the field of forklifts, in particular to a wide-field-of-view sidesway fork positioner. The wide-field-of-view sidesway fork positioner comprises a front pallet fork carrier, a rear pallet fork carrier, a left pallet fork and a right pallet fork. The rear pallet fork carrier comprises two opposite vertical column plates. The portion between the two vertical column plates is sequentially connected with an upper cross beam, a middle cross beam, a stopper chain plate and a lower cross beam from top to bottom. Two side plates are symmetrically arranged on the opposite sides of the two vertical column plates. Two shaft brackets are symmetrically arranged on the upper portions of the two side plates. Two adjusting supports are symmetrically arranged on the lower portions of the two side plates. Adjusting gaskets are installed in the adjusting supports. A sidesway oil cylinder rear support is arranged at the position, between the corresponding shaft bracket and the corresponding adjusting support, of one side plate. By means of the wide-field-of-view sidesway fork positioner, the overall field of view for sidesway distance adjustment of a forklift can be widened, and operating safety is improved; the structures of the front pallet fork carrier and the rear pallet fork carrier are more reasonable, fewer weld joints are generated, the machining difficulty is lowered, and assembly and adjustment are simpler; and the maintenance cost is reduced, and market competitiveness is improved.

The invention discloses a shaft shield. The shaft shield comprises a retractable shield and a base, wherein a linear guide rail where the retractable shield slides is arranged on each of two sides on the top of the base. The shaft shield is characterized in that the retractable shield comprises a plurality of rectangular plates, crossed expansion pieces and rollers, wherein the rectangular plates are arranged in descending order; every two plates are connected through the crossed expansion pieces; and the rollers are positioned below the rectangular plates and can slide on the linear guide rails. The shaft shield has the advantages of simple structure, convenience for assembling and simplicity for disassembling; the working efficiency is greatly improved; the rollers are provided, so that the direct friction between the retractable shield and the linear guide rails is reduced, and the service life is prolonged.

The invention relates to the technical field of silk thread winding, in particular to a miscellaneous thread end cleaning mechanism for silk thread winding of a textile machine. The miscellaneous thread end cleaning mechanism comprises a supporting seat, and a separation structure is arranged on the top side of the supporting seat; a scraping structure is arranged on the inner side of the separation structure; a cleaning structure is arranged on the bottom side of the supporting seat; a penetrating structure is arranged on the side surface of the separation structure; a guide structure is arranged on the side face of the supporting seat; wind power scrap removal is carried out on passing silk threads through the separation structure, so that impurities such as part of thread ends attached to the silk threads are preliminarily separated, scraps firmly attached to the surfaces of the silk threads are further removed through the scraping structure, and therefore the scrap removal efficiency is improved; and the separated impurities are collected in a centralized mode through the cleaning structure, treatment is convenient, silk threads can conveniently penetrate through a sealing shell through the penetrating structure, conveying of the silk threads is guided through the guide structure, and direct friction between the silk threads and the device in the silk thread conveying process is reduced.

The invention discloses a small feed grinder. The small feed grinder comprises a shell, the shell comprises an upper shell and a lower shell, a feeding port is connected to the upper portion of the upper shell, and lining plates are fixed to the inner side of the upper shell; square side plates are arranged at the periphery of the lower shell in an enclosing mode and comprise a front side plate, aback side plate, a left side plate and a right side plate, the two sides of the back edge of the upper shell are provided with first hinges, the two sides of the upper edge of the back side plate areprovided with second hinges, and the first hinges and the second hinges are connected through pin shafts in a penetrating mode; a right transmission device is connected to the right side plate, the structure of the right transmission device is the same as that of a left transmission device, and the right transmission device and the left transmission device are connected through a rotor shaft; andblades are arranged in the shell. According to the small feed grinder, the shell and the square side plates with the good vibration reduction and sound insulation effects are adopted, therefore, vibration is reduced, and noise is reduced; the closed opening type shell structure and an opposite opening are adopted, and therefore dust is reduced. The small feed grinder is simple in structure and manufacturing technology, high in practicability and wide in application range.

The invention relates to a rifle-shaped felting needle. The felting needle consists of a needle rod, a middle section and a working section which are integrated; the ridge of the working section is rifle-shaped; and fiber storage grooves are formed between the adjacent ridges. The designed needle form is particularly suitable for weaving of thick and compact fibers, and weaving of nonwoven fabric which has high fragility (such as ceramic fiber, glass fiber and the like) or nonwoven fabric which has high friction force (such as carbon fiber, stainless steel fiber, aramid fiber, high-strength polyethylene fiber and the like). The felting needle can be used for weaving carbon fiber members used for aerospace.

The invention relates to the technical field of welding equipment, and particularly relates to a welding wire speed regulation control system. The welding wire speed regulation control system comprises a rack, a wire reel, a guide block, a driving motor and a controller; the guide block is positioned at the upper part of the wire reel; a supporting block is arranged below the wire reel; a guide block is arranged on a path for withdrawing the welding wire to the wire reel; and the guide block, the supporting block, the guide block and lead screw pairs of the guide block, the supporting block and the guide block form a welding wire control system together with the driving motor and the controller. When the wire reel rotates to take back the welding wire, the welding wire is wound on the wirereel in a disordered manner, so that the wire feeding rate of the welding wire during reuse is influenced; therefore, through cooperation of the guide block, the supporting block and the guide blockwhich are arranged on the rack, the winding area, the winding strength and the initial winding angle of the welding wire during wire winding are limited, the problem that the welding wire is wound disorderly during wire winding of the wire reel is solved, and the conveying rate of the welding wire in subsequent use is stabilized.

The invention discloses a pulley device of a conveyor, which comprises a fixing hole, a bolt hole, a bolt, a second baffle, a nut, a fixed wheel, a suspended ceiling, a fixing bolt, a first baffle, a fixing frame, a pin, a circular cylinder, and a pulley , Pulley groove. The present invention is simple in structure and low in cost. Through the action of the pulley, the direction of the force is changed, the friction is reduced, and the movement of the heavy object is realized in a labor-saving and quick manner. It is arranged inside the pulley, and the circular roller is fixed on the fixed wheel through the pin and the nut, which reduces the direct friction between the pulley and the pin, thus achieving labor-saving effect and more flexible operation. The bolts, bolt holes, and fixing bolts are mutually combined and fixed, and are in a movable connection relationship, and can swing in a small range, making the invention more flexible and stable.

The invention belongs to the technical field of automobile part tools, and particularly relates to a front axle hub. The front axle hub comprises a cylindrical wheel body, wherein a protruding part is arranged on the front side of the cylindrical wheel body, arc transition is adopted between the protruding part and the cylindrical wheel body, the top end of the protruding part is a plane, the diameter of a column hole is larger than that of a cylindrical hole, an upper gear is arranged at the position where an upper hole is connected with a middle hole, and a lower gear is arranged at the position where a lower hole is connected with the middle hole. Compared with the prior art, the front axle hub has the advantages that the structure is simple, abrasion between a front axle and the front axle hub can be reduced greatly, using strength can be improved greatly, and service life can be prolonged.

The invention discloses a stripe type wear resistant grinding roller for a vertical mill. The stripe type wear resistant grinding roller comprises a conical roller body, and multiple wear resistant stripes uniformly arranged on the outer surface of the conical roller body in the generatrix direction; temporary filling grooves are formed between every two adjacent wear resistant stripes; and material cushion layers are filled in all the temporary filling grooves, and are materials machined by the vertical mill. The stripe type wear resistant grinding roller for the vertical mill is surfaced with the wear resistant stripes with various shapes on the smooth surface, so that the friction force is increased, the materials are uniformly distributed between the grinding roller and a grinding disc under the effect of centrifugal force, the friction between the materials and the grinding disc is reduced, the grinding efficiency is improved, and the service life of the grinding roller is prolonged.

The invention provides a spring installing and fixing structure and a gate groove anti-abrasion device applying the spring installing and fixing structure. An installation foundation support is weldedto a steel plate, the two ends of a spring are provided with fixing plates, the fixing plates and the installation foundation support are all provided with bolt holes to realize bolt connection, andthe spring is convenient to detach and install. The steel plate of the U-shaped structure, a Teflon sliding plate and the spring are arranged, a gate structure is lifted conveniently, and collision generated in the work process of the gate can be subjected to energy depletion conveniently; secondly, by means of a bristle structure arranged on the Teflon sliding plate, direct friction to the sliding plate is reduced; and moreover, the flexible bristles contribute to weakening of energy, and the anti-abrasion effect of the structure is improved.

The invention provides a construction method for protecting a gate groove for a water conservancy project. According to the construction method, a steel plate with a U-shaped structure, a tetrafluoroethylene sliding plate and first springs are arranged, so that lifting of gate structure is facilitated, and energy consumption of collision generated in the gate working project is also conveniently reduced; and then, brush structures arranged on the tetrafluoroethylene sliding plate reduces direct friction to the sliding plate, and flexible brush hair is beneficial to weakening energy, and therefore the anti-wear effect of the structure is improved.

The invention relates to a bicycle shock absorption component which comprises a bicycle frame and a pedal device, wherein the pedal device comprises a rear fork component and a pedal component; a connecting hole is formed in the bicycle frame and internally provided with a connecting shaft; bulges are arranged on the connecting shaft; a shock absorption piece is arranged on the connecting shaft; the shock absorption piece is connected with the bicycle frame; the connecting hole is internally provided with at least two limiting baffles; a clearance allowing the bulges to move is formed between every two adjacent limiting baffles; the rear fork component is arranged at the two ends of the connecting shaft; wear-proof gaskets are arranged at the two ends of the connecting shaft; the pedal component is arranged on the connecting shaft. The bicycle shock absorption component has the advantages that the shock absorption piece is arranged on the connecting shaft and connected with the bicycle frame, so that vibration generated when a bicycle is ridden on a non-ideal terrain can be effectively reduced; vibration conducted to people is reduced; riding is more comfortable; the bicycle can be protected; a service life of the bicycle is prolonged. In addition, the invention further provides a bicycle which comprises the shock absorption component.