53results about How to "Improve friction efficiency" patented technology

The invention provides a formula and a process for powder metallurgy. The formula comprises Fe-based powder, machinability improving powder and a free lubricant; the Fe-based powder comprises, by weight, 7 to 14% of copper powder (Cu), 2 to 8% of molybdenum powder (Mo), 0.5 to 3.5% of nickel powder (Ni), 1 to 7% of aluminum powder (Pb), 8 to 16% of graphite (C), 1 to 5.5% of molybdenum disulfide (MoS2), 1.5 to 5% of cast stone, 0.5 to 5% of silicon carbide (SiC) and 4 to 9% of mullite (3Al2O3.2SiO2), with the balance being iron powder, the machinability improving powder is composed of calcium phosphate compounds, and the free lubricant contains at least one selected from the group consisting of thermoplastic resin powder, zinc stearate and lithium stearate.

The present invention relates to a boiler using mechanical rotating power as a rotating force of a rotary body of a driving source to accelerate water molecules to move (friction), and heating water by using frictional heat generated by the movement of the water molecules. The boiler is composed of a rotary body connected to a driving source and a housing accepting and supporting the rotary body, the housing is provided with a water inlet and water outlet, and a water flowpath is formed in the housing. The outer circumferential face of the rotary body is provided with at least two sunken holes sloped to a normal line or a tangent line direction, the inner circumferential face of the housing is provided with at least two grooves apart from by a certain distance in the circumference direction and continuously slopedly or helically arranged in the axis direction. According to the boiler, when the water moves axially along the water flowpath and contacts with the outer circumferential face of the rotary body so as to greatly increase friction distance, and friction efficiency is maximized by the sunken holes. In addition, by means of the grooves, the water is flowed smoothly in the housing, and the water is easy to be sucked, discharged and circulated with an external circulating system by using self suction.

The invention discloses a hydrodynamic retarder which comprises a rotor, a stator and a circle of oscillating teeth. An inner cavity is formed in the stator, the rotor is arranged in the inner cavity of the stator, and the center of the rotor is overlapped with the circle center of the inner cavity of the stator. A circle of oscillating tooth grooves communicated with a high-pressure oil inlet is formed in the wall of the inner cavity of the stator, the oscillating teeth are embedded into the corresponding oscillating tooth grooves one by one, and the outer ends of the oscillating teeth are opposite to the outer wall of the rotor. The outer wall of the rotor is a variable-diameter face, the variable-diameter face is evenly divided into a plurality of equant portions, and the variable diameters and directions of all the equant portions are the same. According to the hydrodynamic retarder, the rotor can freely rotate in the stator in the normal rotating process, and when the oscillating teeth in the stator are in contact with the rotor under the action of high-pressure oil and brake force is generated, high efficiency, large torque and brake buffering can be achieved; meanwhile, the hydrodynamic retarder has the advantages of being balanced in radial power, low in noise, compact in structure, small in size and low in manufacturing cost.

The invention provides a novel high-speed brake pad. Two brake blocks are sintered on a skeleton; a riveting hole is processed in a part, on the skeleton and between the two brake blocks; the sintered brake blocks and the skeleton are riveted on the front of a steel backing through the riveting hole; a space between the two brake blocks is in favor of ventilation, heat dissipation and chip removing during a braking process, the braking temperature of a friction block can be effectively reduced and the friction efficiency can be improved; and a dovetail plate is welded on the back side of the steel backing. In order to solve the problem that the adhering of the brake pad and a brake disc is inadequate, a wave-shaped shrapnel is installed between the steel backing and the skeleton; and in order to prevent excessive abrasion of a rivet, a bush is sleeved over the outer wall of the rivet.

The invention discloses a sand grain friction device for old sand machinery regeneration. The sand grain friction device comprises a friction box, wherein a coarse grinding cavity and a fine grindingcavity are formed in the upper part of the friction box, a sorting cavity is formed in the lower part of the friction box, a discharging opening is formed between the sorting cavity and the fine grinding cavity, a rotating shaft is in connection between the rough grinding cavity and the fine grinding cavity in a sleeving mode, a motor is installed on the top plate of the friction box, and an output shaft of the motor is connected to a rotating shaft; old sand inlets are formed in the two sides of the motor, a plurality of fixed grinding rods are installed on the inner wall of the rough grinding cavity, and a plurality of stirring rods are installed on the part, at the rough grinding cavity, of the rotating shaft; an electric heating pipe is in connection with the inner wall, at the rough grinding cavity, of the friction box in a sleeving mode; a grinding disc is in connection with the part, at the fine grinding cavity, of the rotating shaft; and friction teeth are installed between theouter wall of the grinding disc and the inner wall of the fine grinding cavity. The electric heating pipe heats the sand material, so that the temperature of an adhesive film is more easily reduced,the rotating shaft drives the stirring rods to rotate, the sand material is stirred so that the sand material is uniformly heated, and coarse grinding is carried out on the sand grains, the coarse grinding sand materials slide up and down along the inner wall of the grinding disc and the inner wall of the fine grinding cavity, the rotating shaft drives the grinding disc to rotate, so that the friction teeth perform strong friction on the sand grains.

The invention discloses an automatic grinding machine including a support, the lower end surface of the support is fixedly connected with a first sleeve, and the automatic polishing machine is simplein structure; to-be-grinded workpieces are placed below a sanding paper, a motor is started through connecting external power source, forward rotation and backward rotation of a first rotating rod canbe achieved under the action of a first spring through engaging of a rack and a gear, so that a frame can rotate, and further the sanding paper can be rotated while swinging to improve friction efficiency and can transfer power to a second electromagnet; the distance and the acting force between the second electromagnet and a second permanent magnet are changed due to swing of the second permanent magnet, so that a second inserting rod trembles under the action of a second spring, further improving friction of the sanding paper and the workpieces, and the grinding effect is improved.

The invention discloses an oval optical lens integrated polishing device. The oval optical lens integrated polishing device comprises a grinding bin; a shaft I is rotatably connected to the bottom ofthe inner wall of the grinding bin in a limited mode; a clamping plate I is fixedly connected to the top of the shaft I; an oval glass sheet is arranged on the upper surface of the clamping plate I; acover plate is fixedly connected to the inner wall, close to the top, of the grinding bin; a shaft II is rotatably connected to the lower surface of the cover plate in a limited mode; a clamping plate II is fixedly connected to the bottom of the shaft II; the oval glass sheet is located on the opposite faces of the clamping plate I and the clamping plate II; and a supporting frame is arranged onthe right side of the grinding bin. According to the oval optical lens integrated grinding device provided by the invention, through cooperative use of the above structures, the problems that in the actual use process, due to the fact that the actual use effect of a traditional grinding block is poor, it is difficult to conduct complete grinding on the arc-shaped outline of oval glass, the grinding efficiency is low, and complete grinding of the oval glass can be achieved only through multiple times of adjustment are solved, and inconvenience is brought to use.

The invention discloses a drum type mechanical shell breaking machine for hard seeds. The drum type mechanical shell breaking machine for hard seeds comprises a frame (1), an outer shell (2), a motor(3), a vibrating screen (4) and a grinding mechanism (5); the outer shell (2) is fixedly mounted on the frame (1), the motor (3) is mounted at one side of the outer shell (2), the vibrating screen (4)is mounted at the upper side of the internal of the outer shell (2), and the grinding mechanism (5) is located below the vibrating screen (4); and the top of the outer shell (2) is provided with a feeding opening (7), and the lower part of the outer shell (2) is provided with a discharging opening (8). The drum type mechanical shell breaking machine for hard seeds has the advantages of reasonablestructural design, convenience in operation, high shell breaking efficiency for alfalfa and other hard seeds, improvement of the germination rate of the hard seeds, increase of the yield of alfalfa,and strong practicability.

The invention discloses a mechanical and chemical combined hard seed dormancy breaking treatment machine, which comprises a rack (1), a shell (2), a motor (3), a vibrating screen (4), a grinding mechanism (5) and a dormancy breaking medicament box (9), wherein the shell (2) is fixedly arranged on the rack (1), and the motor (3) is arranged at one side of the shell (2); a vibrating screen (4) is arranged at the upper side of the inside of the shell (2), and a grinding mechanism (5) is positioned below the vibrating screen (4); the top of the shell (2) is provided with a feed port (7), and the lower part of the shell (2) is provided with a discharge port (8); one end of the shell (2) is provided with a water inlet, and the dormancy breaking medicament box (9) is connected with the water inlet through a pipeline. The mechanical and chemical combined hard seed dormancy breaking treatment machine disclosed by the invention has the advantages of reasonable structural design and convenient operation, combination of mechanical dormancy breaking and chemical dormancy breaking to improve the germination rate of hard seeds, improvement in yield, and high practicability.

The invention discloses a mechanical printing paper ink removal method and a mechanical printing paper ink removal device. A set of drive mechanism which comprises a driving motor and a speed reducer drives a transfer mechanism to act, so that paper is driven to move forward. At the same time, another set of drive mechanism which comprises a driving motor and a speed reducer drives an abrasive belt grinding mechanism to act, a grinding abrasive belt is in contact with the paper, the principle of friction is utilized to remove the ink of the paper, consequently, the effect of paper ink removal is achieved, the paper can be recycled, energy is saved, and the cost of waste paper recovery and pollution are reduced.

A rubbing system for an alignment layer of a liquid crystal display (LCD) device, comprises: a rubbing table on which a substrate having an alignment layer thereon is positioned; a rubbing roll on which a rubbing material is wound, substantially positioned on the rubbing table thus to substantially contact the alignment layer, for rubbing the alignment layer by rotation of the rubbing roll; and a controlling unit for controlling the alignment layer to be rubbed by substantially contacting the rubbing roll onto the alignment layer by simultaneously lifting and lowering a rubbing table and the rubbing roll according to an alignment controlling force to be applied to the alignment layer.

The invention discloses a multi-medium filter for filtering tap water, and belongs to the technical field of tap water filtering equipment. The multi-medium filter comprises a shell and a cover plate, an upper partition plate assembly, a plurality of middle partition plate assemblies and a lower partition plate assembly are arranged in the shell, a water inlet channel is formed between the upper partition plate assembly and the cover plate, and a water outlet channel is formed between the lower partition plate assembly and the bottom of the shell; a space capable of accommodating a filter material is formed between the upper partition plate assembly and the lower partition plate assembly, and the space is divided into a plurality of small spaces by the plurality of middle partition plate assemblies; the bottom of the upper partition plate assembly, the top and the bottom of the middle partition plate assemblies and the top of the lower partition plate assembly are all provided with cleaning mechanisms capable of performing independent water vapor scrubbing on the filter materials in the corresponding small spaces; a stirring mechanism is arranged in the shell and can be used for independently stirring the filter materials in different small spaces. The invention aims to provide the multi-medium filter for filtering tap water. The function of stirring and cleaning the filter material in the filter is realized.

The invention discloses a heat mixer for plastic particles. The heat mixer comprises a machine barrel, a charge hole, a discharge hole, a rotary shaft, a rotary motor, a plurality of mixing plates and a plurality of friction plates, wherein the charge hole is formed in the top of the machine barrel; the discharge hole is formed in the lower part of the barrel wall of the machine barrel; the rotary shaft is arranged in the machine barrel in a penetrating mode; the rotary motor is connected with the upper end of the rotary shaft; the mixing plates are arranged in the machine barrel and are uniformly distributed in the peripheral direction of the rotary shaft; one end, away from the rotary shaft, of each mixing plate is equipped with a groove, and a mixing head is arranged in the groove; and the friction plates are arranged in the machine barrel and are uniformly distributed in the peripheral direction of the rotary shaft. The heat mixer improves mixing efficiency and improves friction efficiency, further improves working efficiency and reduces energy consumption.

The invention discloses a grinding disc type hard seed dormancy breaking production system. The grinding disc type hard seed dormancy breaking production system comprises a dormancy breaking agent box(1), a grinding disc type hard seed mechanical-breaking machine (2), a seed filtering device (3), a grinding disc type drying device (4), a conveying device (5) and a constant temperature incubator (6) which are connected in sequence. The grinding disc type hard seed dormancy breaking production system is reasonable in structure design, convenient to operate, high in automation degree and good incomplete set nature. By adopting the chemical dormancy breaking and mechanical dormancy breaking joint mode and integrating the filtering device, the drying device and the constant temperature incubator, the efficiency of breaking shells of hard seeds such as alfalfa seeds is high, cultured seeds can be directly planted after being taken out, the seeds are easier to sprout, the germination rate of the hard seeds is greatly improved, and the grinding disc type hard seed dormancy breaking production system has an important application value.

The invention discloses a grinding disc type hard solid seed mechanical shell breaking machine, comprising a frame (1), a motor (2) and a grinding mechanism (4) mounted on the frame (1), and a speed reducer (3) connected with the motor (2), wherein the speed reducer (3) is connected with one end of a transmission shaft (5) through a universal coupling, and the other end of the transmission shaft (5) fixes a lower grinding surface (4-2) in the grinding mechanism (4) on a grinding surface support plate (4-3) by a nut; the bottom of the grinding surface support plate (4-3) and the bottom of a shell of the grinding mechanism (4) are respectively provided with a groove, and the grooves are internally provided with balls, and the grinding surface support plate and the grinding mechanism can rotate relative to each other. The grinding disc type hard solid seed mechanical shell breaking machine has the advantages of reasonable structure design, convenience in operation, high work efficiency and high practicability, can prevent damage to germs during alfalfa seed planting shell breaking, and can solve the problem of difficult operation when treating alfalfa seeds in mass.

The invention discloses a bag-type dust collector capable of continuously operating, which belongs to the technical field of dust collection, and adopts the scheme that dust-containing gas is introduced into a dust collection rack through a gas inlet guide pipe on the outer side of the dust collection rack, wherein the carbon dioxide gas in a carbon dioxide aqueous solution can escape by virtue ofgas flow and collision of dust to a dust pendulum, so that the dust pendulum is in a level status overall; therefore, on one hand, the possibility that dust is attached to the inner wall of the built-in dust removal cloth bag can be reduced by means of deformation swing of the dust pendulum, and on the other hand, heat generated when the dust collides with one another is absorbed by means of a carbon dioxide aqueous solution; thus, the possibility of explosion caused by over-high temperature in the dust is reduced, and the thermal change traction wire can be promoted to deform to a high-temperature phase state by means of heat; by means of repeated change of the corrugated storage bag, the air purification efficiency can be improved, and the possibility that the dust is attached to the inner wall of the built-in dust removal cloth bag can also be reduced.

The invention discloses a high-precision grinding machine device with a workpiece surface precision detection function, and relates to the technical field of workpiece surface grinding, the high-precision grinding machine device comprises a displacement control assembly, a base, a gantry support, a grinding assembly, a detection assembly and a connecting plate, the bottom of the gantry support is fixedly connected with the base, and the connecting plate is fixedly connected with the bottom of the gantry support; one end of the displacement control assembly is fixedly connected with the base, the other end of the displacement control assembly is fixedly connected with the connecting plate, the grinding assembly is fixedly connected with the displacement control assembly, and the detection assembly is arranged on one side of the displacement control assembly and fixedly connected with the base. The adjusting component can accurately control the local use amount of the coolant, the situation of coolant waste is avoided, on the other hand, axial friction is carried out when the local temperature difference reaches the limit, and the balance of the local area of the annular grinding sleeve is greatly improved.

The invention discloses a reciprocating type hard seed dormancy breaking production system which comprises a dormancy breaking agent tank (1), a reciprocating type hard seed mechanical case breaking machine (2), a seed filter device (3), a reciprocating type drying device (4), a conveying device (5) and a constant-temperature cultivation tank (6). The dormancy breaking agent tank (1), the reciprocating type hard seed mechanical case breaking machine (2), the seed filter device (3), the reciprocating type drying device (4), the conveying device (5) and the constant-temperature cultivation tank(6) are sequentially connected with one another. The reciprocating type hard seed dormancy breaking production system has the advantages that the reciprocating type hard seed dormancy breaking production system is reasonable in structural design, convenient to operate, high in automation degree and good in equipment complete-set property; hard seeds can be jointly treated by chemical dormancy breaking and the reciprocating type hard seed mechanical case breaking machine, the filter device, the drying device and the constant-temperature cultivation tank are integrated with one another, accordingly, the reciprocating type hard seed dormancy breaking production system is high in hard seed case breaking efficiency, cultivated seeds can be directly planted after being taken out and are easy togerminate, the germination rate of the hard seeds can be greatly increased, and the reciprocating type hard seed dormancy breaking production system has an important application value.