34results about How to "Lower friction temperature" patented technology

The invention discloses a bridge support sliding material, which is prepared through following steps: mixing organic resin, fiber, solid lubricant and filler, stirring, pressing and sintering; the weight content of organic resin is 35-99.8%, solid lubricant is 0.1-30%, fiber is 0.1-20%, filler is 0-15%; the organic resin employs politef or super molecular weight polyethylene as resin basic material. The material is characterized by good self-lubricating property and abradability, large bearing capacity, which is two to three times of that of pure PTFE, good creep resistance, low production cost, and wide usage as support bearing for high speed Railway Bridge.

The invention relates to a multilayer composite self-lubricant material with high porous degree, wherein the invention uses low-carbon steel sheet as base material; plates copper on the surface; sinters copper alloy powder on the surface of liner layer; and coats sintered polymer on the surface to be rolled and adjusted with thickness. The tin content of copper alloy powder is 1-15%; the optimized valve is 8-12%; the zinc content is 0-6%; the lead content is 0-6%; the optimized valve is 3-5%. The invention has high mechanical property, which can keep the load ability and mechanical strength of liner metallic material, better self-lubricant and anti-abrasion property, with high producing efficiency and low cost.

The invention discloses a high-shear ultra-fine pulverizing machine, belonging to pulverizing machines. The high-shear ultra-fine pulverizing machine comprises a material collecting barrel, a delivery pipe and a storage bin, wherein the material collecting barrel is arranged at the upper part of a stand, and the top of the material collecting barrel is provided with a mesh screen; the material collecting barrel comprises a first rotor, a second rotor and a fixed outer bin, the outer side wall of the first rotor, both sides of the second rotor and the inner side of the fixed outer bin are respectively provided with a stator, and the first rotor and the second rotor are connected with a motor arranged on the stand through a transmission mechanism; a power source is arranged on the stand; the material collecting barrel is provided with a material inlet, and the upper part of the material collecting barrel is communicated with the storage bin through the delivery pipe; the bottom of the storage bin is provided with a material outlet, and the side wall of the storage bin is provided with a decompression ventilation window. Compared with the prior art, the high-shear ultra-fine pulverizing machine has the characteristics of increasing working efficiency, quickly shearing a material, reducing friction times and friction time, reducing denaturation produced on the material, and the like, thereby having good popularization and application value.

The invention relates to a high pressure resistant spring type mechanical sealing device which comprises a spring case (1), a spring (2), a thrust ring (3), a kinetic friction ring (4) and a static friction ring (5), wherein, the kinetic friction ring (4) is a compensation ring. The device is characterized in that a slip sealing ring (7) is formed by a tetrafluoroethylene sleeve with a U-shaped cross section and an O-shaped rubber ring embedded inside the tetrafluoroethylene sleeve; the end surface of the kinetic friction ring is distributed with two arch kinetic pressure groove groups that are an open type groove (A) and a closed type groove (B), the static friction ring (5) is installed in a way of being matched with the inner circle of a limiting slot platform on a gland bush (9) or a stationary seat (8), and an O-shaped auxiliary sealing ring is arranged on the vertical end surface of the limiting slot platform. The device has simple structure, simple and convenient processing, good stability and reliability of end surface sealing and auxiliary sealing, and high pressure resistance, can adapt to higher working pressure, works normally under the working condition of 18MP, and ensures leak tightness, little abrasion of the friction end surface and long service life.

The invention discloses a deep groove ball bearing retainer and a deep groove ball bearing. The deep groove ball bearing comprises a bearing inner ring, a bearing outer ring, rolling bodies and the retainer (100); the retainer (100) is located between the bearing inner ring and the bearing outer ring, and the rolling bodies are installed on the retainer (100); the retainer (100) comprises a retainer body, pockets (1) and ring slots (2); the pockets (1) are uniformly arranged on the retainer body, and rolling bodies are installed in the pockets (1); and the ring slots (2) are arranged in the pockets (1), and the ring slots are internally provided with lubricating oil. The retainer (100) is good in lubricating effect, the temperatures of the rolling bodies and wear to the retainer (100) can be lowered, the retainer is not liable to damage, and the service life of the retainer is prolonged.

The invention relates to the field of lubricating grease, in particular to composite lubricating grease for a heavy load bearing and a preparation method thereof. The composite lubricating grease is prepared from the following ingredients in percentage by weight: 99.2 to 99.8 percent of lithium-based lubricating grease and 0.2 to 0.8 percent of micro carbon spheres and nanometer particles. The micro carbon spheres and nanometer particles are uniformly distributed in the lithium-based lubricating grease by using ethanol as carriers. Compared with the existing ordinary lithium-based lubricating grease, the composite lubricating grease prepared after the ethanol evaporation has the advantage that the improvement is realized in aspects of friction heating, friction mark area and the like.

The invention discloses novel arc surface contact left and right contact strips applicable to a static contact group. A movable contact current collecting ring is arranged on one side of a contact main body; the contact main body consists of a shaft end, a main board and a contact end; the shaft end, the main board and the contact end adopt an integrated structure; the main board is arranged between the shaft end and the contact end; a mounting groove is formed in the centre of the shaft end; a terminal mounting hole is formed in one end of the shaft end in a run-through manner; and contact convex points are arranged on the outer surface of the contact end at equal intervals. According to the novel arc surface contact left and right contact strips applicable to the static contact group, the contact end of the contact main body is in direct contact with the movable contact current collecting ring, so that the contact end can properly clamp the movable contact current collecting ring tightly to generate a high power-on effect; when the contact main body and the movable contact current collecting ring are in high-frequency contact, a high-abrasion-resistant and high-strength working state is achieved; and therefore, the service lives of the contact main body and the movable contact current collecting ring are prolonged jointly, and the safety performance is improved.

The invention discloses an intelligent flexible bran and fine broken rice separator. The separator comprises a rack as well as a rubbing and polishing system, an air inlet system, a feed port, a discharge system, a motor, a bran discharge channel and a shell which are arranged on the rack, wherein the rubbing and polishing system comprises a rotor, a rotary sifting system and a driven belt pulley, the rotor is a rotating shaft, the driven belt pulley is fixedly mounted at the tail part of the rotating shaft, the driven belt pulley is connected with the motor through a belt, the motor drives the rotor to rotate, the rotary sifting system is of a cylindrical barrel-shaped structure, is arranged outside the rotor in a sleeving mode, is fixedly mounted on a rotary support of the rack and is driven by a special gear motor to be combined with a main shaft assembly to conduct same-direction differential rotation to perform circular motion, the feed port is formed in the upper portion of the rubbing and polishing system, a net is arranged outside the rotary sifting system, the size of net holes is set to enable rice bran to pass through and enable fine broken rice not to pass through, the bran discharge channel is mounted on the lower portion of the rotary sifting system, an external air net connector is arranged at a port of the bran discharge channel, the rotor and the rotary sifting system are provided with the rubbing and polishing rods, so that the rubbing and polishing efficiency is greatly improved during working, air is supplied to the space between the rotor and the rotary sifting system during rubbing and polishing, the friction temperature during separation of bran and fine broken rice is reduced, the quality of the separated fine broken rice is guaranteed, and rice bran can be discharged quickly.

The invention discloses an intelligent flexible rice rubbing and polishing machine. The intelligent flexible rice rubbing and polishing machine comprises a rack, and a rubbing and polishing system, an air inlet system, a feed port, a discharge system, a motor, a bran outlet channel and a casing which are arranged on the rack, the rubbing and polishing system comprises a rotor, a rotary screening system and a driven belt pulley, the rotor is a rotating shaft, the driven belt pulley is fixedly mounted at the tail part of the rotating shaft, the driven belt pulley is connected with the motor through a belt, the rotor is driven by the motor to rotate, the rotary screening system is of a cylindrical barrel-shaped structure, is arranged outside the rotor in a sleeving mode and is fixedly installed on the rack, the feeding port is formed in the upper portion of the rubbing and polishing system, the discharge system comprises a discharging port and is installed at the tail of the rotor, a net is arranged outside the rotary screening system, the size of meshes is set to enable rice bran to pass through and enable rice not to pass through, the bran outlet channel is installed on the lower portion of the rotary screening system, an external air net connector is arranged at a port of the bran outlet channel, an air supply system is an air blower, and an air outlet of the air blower communicates with the rotor. Therefore, during working, the rubbing and polishing efficiency is greatly improved, air is supplied to the space between the rotor and the rotary screening system during rubbing and polishing, the friction temperature of rice during rubbing and polishing is reduced, and the quality of the rice is guaranteed.

The present invention provides a novel high-speed and high-precision all-ceramic roller bearing, comprising an outer ring, an inner ring, rollers and a cage; a retaining shoulder at one side of the outer ring is slotted to form a groove with the radian being 30 degrees, and the height of the groove is half of the retaining shoulder of the outer ring; the inner diameter of the inner ring is 70% ofthe outer diameter of the outer ring; channels of both the outer ring and the inner ring are coated with a layer of graphene. The novel high-speed and high-precision all-ceramic roller bearing has theadvantages and effects of optimized outer ring structure with the retaining shoulder of the roller bearing, improved installation process, reduced production costs and improved performance of the roller bearing, and the non-destructive installation of the silicon nitride all-ceramic roller bearing is achieved.

The invention provides a gear speed change mechanism with the efficient lubricating effect, and relates to the field of cars. The gear speed change mechanism with the efficient lubricating effect comprises a gearbox body, two first bearings are fixedly connected to the inner wall of the gearbox body, the inner rings of the two first bearings are fixedly sleeved with input shafts, the input shaftsare hollow, the ends, away from the right side of the inner wall of the gearbox body, of the input shafts penetrate through the gearbox body and extend to the outer portion of the gearbox body, a driving gear is fixedly inserted to the position, located on the outer surfaces of the input shafts, in the gearbox body, and a first transmission gear is engaged to the tooth grain position of the driving gear. According to the gear speed change mechanism with the efficient lubricating effect, through a lubricating oil pump, lubricating oil in the gearbox body can be conveyed into the input shafts and a rotating shaft through lubricating oil pipes and branch pipes, through lubricating holes and lubricating grooves, lubricating oil flows to positions between gears, and the gears can be lubricated.

The invention discloses a rubber textile wheel sizing material as well as a preparation method and application thereof. The rubber textile wheel sizing material is prepared from the following raw materials in parts by weight: 50-100 parts of natural rubber; 0-50 parts of nitrile rubber; 1-20 parts of nano zinc oxide; 0.5 to 3 parts of stearic acid; 1 to 30 parts of graphene and carbon nanotubes; 20 to 120 parts of a filler; 1-8 parts of a coupling agent; 0-30 parts of a plasticizer; and 0.5 to 15 parts of a vulcanization accelerator. The textile wheel prepared from the rubber material has antistatic, low-heat-generation and wear-resistant properties, and overcomes the defects of relatively large wear, relatively large heat generation, no static electricity conduction and the like when the textile wheel is used. Compared with a rubber spinning wheel on the market, the abrasion loss is reduced by about 0.6 mm or above, the volume resistivity is reduced to be within the order of magnitude of 106 omega.cm, and the friction temperature is reduced by 5 DEG C or above.

The invention discloses a four-season skiing pad with rolling balls. The skiing pad comprises a sliding pad module composed of the driven rolling balls, the driving rolling balls, an upper cover and asupporting base, and the driven rolling balls and the driving rolling balls are assembled in a rolling ball storage chamber in vertical columns of a base; the driving rolling balls in the base drivethe driven rolling balls to achieve mutual assistance, the friction force between the sliding pad and a sliding apparatus is small, and the skiing pad is not limited by the gradient, so that the skiing pad is high in sliding speed, high in wear resistance, stable, large in bending degree and low in noise, can continuously slide without spraying water, and is low in friction temperature, long in service life and convenient to pave and clean.

The invention discloses a bearing bush type conductive clutch. The bearing bush type conductive clutch is composed of a sub conductive clutch body and a main conductive clutch body, wherein the sub conductive clutch body comprises fixing bolts, a push-type conductive clutch disc convex column, a sub conductive clutch body flange plate, a reset spring, a spring base and cables; the main conductive clutch body comprises a sucked type conductive contact surface groove, fixing bolt grooves, a base push-type conductive clutch disc convex column mounting hole, electrical wires, a main conductive clutch body flange plate and a base. By means of the effective connection arrangement of all the parts of the sub conductive clutch body and the main conductive clutch body, the problems that the manufacturing cost of the conductive clutch is high, a conductive clutch disc is very hot and is severely burnt in the production process, the service life is short, the later period conductivity declines rapidly, and the smooth running of equipment is affected are solved, the usage range is further widened, and the service life is prolonged.

The invention discloses an axial surface oil seal used for a high-speed motor. The axial surface oil seal used for the high-speed motor comprises a circular ring-shaped metal casing and a rubber ring, wherein a circle of groove is formed in the periphery of the inner diameter of the circular ring-shaped metal casing; the one section of the outer edge of the groove bottom upwards extends in a vertical direction to form a circumference of vertical groove wall; the outer edge of the top of the vertical groove wall extends in outward oblique direction to form a sealing protective structure of the rubber ring; a positioning part of the rubber ring is circular ring-shaped, the height of the positioning part is matched with the vertical groove wall of the groove, and the width of the bottom of the positioning part is matched with the width of the groove; the top of the positioning part extends in the outward oblique direction to form a sealing part; and the part between the inner diameter of the bottom of the sealing part and the inner diameter of the top of the positioning part forms a buckling surface of the rubber ring, and the buckling surface is matched with a buckling structure. The axial surface oil seal is applicable to the high-speed motor, and is simple in structure, low in manufacturing cost, long in service life and obvious in effect.