34results about How to "No contact friction" patented technology

The invention discloses a tentering shaping conveying device for a magnetic suspension functional fabric. The device comprises a supporting block, and is characterized in that a runway-type static rail is mounted on the supporting block; a magnetic suspension movable rail is sleeved on the static rail; a gear belt is mounted on the magnetic suspension movable rail; a plurality of needle felts are mounted on the gear belt; a rotary motor is mounted at an arc end of the static rail; a gear disc is mounted on the rotary motor; and the gear disc is engaged with the gear belt. The tentering shaping conveying device is reasonable in structure, applicable to various functional coated fabric production occasions, has the advantages of contactless friction, low energy consumption, high kinematic accuracy, low noise, and the like, and can effectively prolong the maintenance and repair period of a system.

The invention relates to a low power consumption outer rotor radial magnetic bearing with an upper-attracting and lower-repulsing structure of a permanent magnet, belonging to the field of the magnetic suspension bearing. The magnetic bearing consists of an outer magnetic-conducting ring, an outer magnetic-insulating ring, stator iron cores, an exciting coil, an inner permanent magnetic semi-ring, rotor iron cores, an inner magnetic-insulating ring, an inner magnetic-conducting ring, an outer permanent magnetic ring, air gaps and a rotating shaft, wherein eight electromagnetic poles and four permanent magnetic poles are established in the positive and negative directions of an X axis and a Y axis of the stator iron core in total; the inner magnetic-insulating ring is arranged among permanent magnetic iron cores and an electromagnetic iron core on a stator; the inner permanent magnetic semi-ring is clamped between the two permanent magnetic iron cores in the negative direction of the Y axis of the stator by the inner magnetic-conducting ring; the air gaps are arranged among the stator iron cores and the rotor iron cores; the outer magnetic-insulating ring is arranged between a permanent magnetic iron core ring and an electromagnetic iron core ring; the outer magnetic-conducting ring is arranged between the permanent magnetic iron core ring and the permanent magnetic iron core ring; and the outer permanent magnetic ring is clamped at the middle part of the outer permanent magnetic ring. The structure can solve the problems of gravity and power consumption of the rotating shaft of the magnetic suspension bearing, thus leading the bearing to have the advantages of low power consumption, reliable performance and convenient manufacture and the like. In addition, the low power consumption outer rotor radial magnetic bearing can be used as no-contact support parts of rotating equipment, such as a wind-driven generator, a motor, a molecular pump, a high-speed bearing.

The invention discloses a coating fabric stentering shaping and transporting device with magnetic levitation function. The device comprises support blocks. A runway type static guide rail is arranged on the support block. The runway type static guide rail is sleeved with magnetic levitation movement guide rails. The magnetic levitation movement guide rail is provided with a gear belt. The gear belt is provided with a plurality of needle felts. An arc end of the static guide rail is provided with a rotation motor. The rotation motor is provided with a gear disk. The gear disk is engaged with the gear belt. The device of the present invention has a reasonable structure, is applicable for a plurality of functional coating fabric production situations, and has advantages of no contact friction, low energy consumption, high movement precision, low noise and the like. In addition, with the device of the present invention, the repair maintenance period of the system can be effectively prolonged.

The invention provides a passive high-temperature superconducting magnetic levitation rotating dining-table. The passive high-temperature superconducting magnetic levitation rotating dining-table comprises a supporting pedestal, a dining-table body and a rotating tabletop; an annular Halbach array permanent magnet is fixed on the upper surface of the dining-table body, while an annular dewar container having the same diameter is fixed on the lower surface of the dining-table body; a groove is formed in the upper surface of the dewar container in the circumferential direction, so that the dewar container and the lower surface of the rotating tabletop can be formed into a cavity structure; a YBCO high-temperature superconducting block is arranged at the bottom of the groove; the YBCO high-temperature superconducting block is capable of capturing the magnetic flux generated by the permanent magnet under a field cooling condition to be the same with the opposite surface of the Halbach array permanent magnet in magnetism; a liquid nitrogen filling opening for adding liquid nitrogen into the cavity structure is further formed in the rotating tabletop. The passive high-temperature superconducting magnetic levitation rotating dining-table is capable of realizing free suspension and rotation without electric control and power supply; as a result, the fault rate of the dining-table is greatly reduced and the dining-table is good in practical effect.

The invention relates to a double-wheel rotor engine. Double wheels comprise a cam (1) and a concave wheel (2) and are arranged in a transverse 8-shaped cylinder body (3), an independent tooth (5) of the cam (1) is used as a piston to rotate in an annular air cylinder, the annular air cylinder is separated into a combustion chamber (23) and an exhaust air chamber (24) by the concave wheel (2), and the ignition combustion is directly carried out after the combustion chamber (23) sucks high-pressure air and pressurized fuel oil. The fuel gas work application and the waste gas exhaust are simultaneously carried out, when the exhaust air chamber (24) is emptied, once work application is simultaneously completed, then, the independent tooth (5) rotates from a groove (7) of the concave wheel (2), a new combustion chamber (23) is generated and is rapidly enlarged, the high-pressure air and the pressurized fuel oil are sucked for work application through combustion, and the cyclic work is constantly carried out in such a way.

The invention discloses a tentering shaping conveying device for a functional coated fabric. The device comprises a supporting block, and is characterized in that a runway-type static rail is mounted on the supporting block; a magnetic suspension movable rail is sleeved on the static rail; a gear belt is mounted on the magnetic suspension movable rail; a plurality of needle felts are mounted on the gear belt; a rotary motor is mounted at an arc end of the static rail; a gear disc is mounted on the rotary motor; and the gear disc is engaged with the gear belt. The tentering shaping conveying device is reasonable in structure, applicable to various functional coated fabric production occasions, has the advantages of contactless friction, low energy consumption, high kinematic accuracy, low noise, and the like, and can effectively prolong the maintenance and repair period of a system.

The invention provides an electromagnetic brake and a friction plate assembly thereof, and relates to the technical field of electric power equipment. The friction plate assembly comprises an armature, a friction plate and a baffle plate which are coaxially overlapped, wherein a connecting column is connected to one side of the baffle plate; the armature sleeves the connecting column and can slidealong the connecting column; the friction plate is limited between the baffle plate and the armature; the armature, the friction plate and the baffle plate are magnetic; mutual repelling force is generated between the armature and the friction plate; and the mutual repelling force is also generated between the friction plate and the baffle plate. A clearance is formed between a stator and the friction plate in electrifying engineering; the friction plate is rotated between the armature and the baffle plate under the effect of magnetic repelling force, so that two end surfaces of the frictionplate in rotating are prevented from contact and friction, and the dust, noise and abrasion caused by friction are minimized, and as a result, the reliability of the electromagnetic brake is ensured.

The invention provides a pump body assembly and a compressor with the pump body assembly. The pump body assembly comprises two structural parts, a bearing type air cylinder arranged between the two structural parts and at least one antifriction structure; the bearing type air cylinder comprises an outer ring and an inner ring capable of rotating relative to the outer ring; at least one antifriction structure arranged on the inner ring faces the end face of the corresponding structural part, and friction between the bearing type air cylinder and the structural parts is reduced. The problems that in the prior art, the bearing type air cylinder in the pump body assembly is prone to wear, and the reliability of the pump body assembly is reduced are effectively solved.

The invention relates to a capacity type micro water turbine, and a fixed mixing ratio device based on the water turbine. The capacity type micro water turbine comprises a capacity chamber and a turning wheel structure rotatably arranged in the capacity chamber, wherein a water inlet and a water outlet are further formed in the front side and the back side of the capacity chamber; the turning wheel structure comprises a first cam turning wheel and a second cam turning wheel meshing with each other up and down; the first cam turning wheel and the second cam turning wheel are provided with the axial cross sections being in '8' shapes, and comprise valley type sections arranged in arc shapes and ridge type sections arranged as conjugate curves; the valley type sections and the ridge type sections are arranged alternately at intervals; and the first cam turning wheel and the second cam turning wheel synchronously rotate in a cavity along the opposite directions. According to the capacity type micro water turbine, through arranging the water turbine and a capacity pump, after solvent liquid enters the turning wheel structure, a pressure difference is formed, and the water turbine is driven to rotate so as to drive the capacity pump to rotate through a coupler; and each time the water turbine rotates for a circle, the flowing solvent volume is a fixed value, and the volume of soluteliquid pumped by the capacity pump rotating for a circle each time is further a fixed value, so that the fixed mixing ratio of a mixing solution is realized.

The invention discloses a minor-caliber thick-wall heat shrinkable pipe positive pressure expansion mold and an expansion system thereof. The expansion mold comprises a mold butt joint flange, an exhaust pipe core, an expansion pipe core and a sizing pipe core which are sequentially and fixedly communicated, wherein an exhaust pipe core outer sleeve is arranged outside the exhaust pipe core in a sleeving way; an exhaust through hole used for exhausting is formed in the exhaust pipe core outer sleeve; an expansion pipe core outer sleeve is arranged outside the expansion pipe core in a sleevingway; an inflation hole is formed in the expansion pipe core outer sleeve; a pressure maintaining cavity is defined between the expansion pipe core outer sleeve and the expansion pipe core; a pluralityof small exhaust holes are formed in a position, surrounded by the exhaust pipe core outer sleeve, of the exhaust pipe core; and a plurality of small pressure maintaining holes are formed in a position, surrounded by the expansion pipe core outer sleeve, of the expansion pipe core. The minor-caliber thick-wall heat shrinkable pipe positive pressure expansion mold and the expansion system have theadvantages that the contact friction on the pipe inner walls of the heat shrinkable pipe and the expansion pipe core is reduced, or even avoided, so that the heat shrinkable pipe can maintain the performance of lower eccentricity, stable longitudinal shrinkage rate and smoothness.

The invention discloses an accounting-based bill fold with an anti-loss function, and relates to the technical field of accounting related equipment. The bill fold comprises an upper cover plate and a lower cover plate, a placement opening is formed in the middle of the upper end of the lower cover plate, an anti-abrasion ring is arranged on the inner side wall of the placement opening, clamping plates are arranged on the front portion and the rear portion in a mounting opening, anti-abrasion pads are fixed to the middles of the right sides of the clamping plates, and reset springs are fixed to the upper portions and the lower portions of the left sides of the clamping plates. Movable blocks are fixed to the positions, corresponding to the mounting opening, of the reset springs, split rings are arranged at the opposite angles between the upper cover plate and the lower cover plate, and arc-shaped rods are arranged at the openings of the split rings. According to the bill fold, the reset springs push the clamping plates and extrude bills, so that the loss of the bills is avoided, anti-abrasion rings and the anti-abrasion pads protect the bills, damage to the surfaces of the bills is avoided, meanwhile, the arc-shaped rods move into the split rings, so that the upper cover plate and the lower cover plate are quickly disassembled and cleaned, and dirt on the surfaces of the bills is avoided.