39results about How to "Meet transmission requirements" patented technology

The invention provides a machining method of an injection molding face gear electrode and an injection molding face gear. A face gear transmission principle is used, a three-dimensional vector diagram of the face gear is generated in a generating method through computer-assisted software, then the injection molding face gear electrode is machined through a numerical control lathe, a mold cavity of the face gear is machined in an electric spark discharge technology, and accordingly the face gear is formed by infection molding. Due to the fact that transmission data of the face gear and a cylinder gear is simulated in a computer, the machined infection molding face gear completely meets face gear transmission requirements in practice, data is accurate, the face gear is fixed on a table face to be machined through the numerical control lathe, deformation cannot happen, and therefore the machined injection molding face gear electrode is high in accuracy and low in transmission noise. What is important is that technologies such as gear inserting or gear rolling or gear grinding are not used in machining of the injection molding face gear electrode, so that special knives are of no need, and cost is greatly lowered.

The invention discloses a furnace top distributing gear for distributing materials on the top of an iron-fining furnace, belonging to the technical field of mechanical engineering. A rotating motor and a tilting motor are independently driven by a set of differential mechanisms, wherein differential mechanism drive and previous-stage drive adopt all-gear drive, the previous-stage drive of a central sun wheel of the differential mechanism adopts gear drive with common drive ratio, and a furnace pot is tilted by a three-ring speed reducer. The furnace top distributing gear can realize the functions of furnace pot tilting, furnace pot rotation and furnace pot tilting and rotation, has the advantages of compact structure, reliable drive, stable work, high drive efficiency, long service life, little maintaining workload and convenient furnace pot replacement, can be used for blast furnace engineering of various types or other places where loose unpacked materials are delivered.

The invention discloses a stepless speed change system and method for a rotor wing of a twin-engine helicopter. The system comprises a right driving gear, a lower duplicate gear, a planet carrier, a planet gear, a left driving gear, an upper duplicate gear and an overrunning clutch. The gears are all bevel gears. The upper duplicate gear and the lower duplicate gear are coaxially arranged and aresupported on the planet carrier through bearings. The right driving gear serves as one horizontal power input end and is meshed with a lower bevel gear of the lower duplicate gear, an upper bevel gearof the lower duplicate gear is meshed with the planet gear, the planet gear is meshed with a lower bevel gear of the upper duplicate gear, an upper bevel gear of the upper duplicate gear is meshed with the left driving gear, and the left driving gear serves as the other horizontal power input end. A rotating shaft of the planet gear is connected with the planet carrier. The rotating axis of the planet carrier is in the vertical direction, the upper end of the planet carrier serves as an output end, and the rotor wing is driven through the overrunning clutch. According to the method, the stepless speed change requirement of the planet carrier can be met by adjusting the rotating speeds of the left driving gear and the right driving gear.

The invention relates to a universal coupler. The coupler comprises a first coupling piece, a second coupling piece and a first coupling, wherein the first coupling is rotatably connected with the first coupling piece and the second coupling piece. One end, in the length direction, of the first coupling is rotatably connected with the first coupling piece through a first rotary shaft, and the other end, in the length direction, of the first coupling is rotatably connected with the second coupling piece through a second rotary shaft; and the first rotary shaft and the second rotary shaft are perpendicular to the length direction of the first coupling, and the first rotary shaft is perpendicular to the second rotary shaft. According to the embodiment of the universal coupler, a reasonable structural design is adopted, the machining and manufacturing difficulty of key parts is lowered, the cost is low, and therefore the whole machining and manufacturing difficulty and the cost of the universal coupler are reduced.

The invention discloses a method for generating real tooth surface of arc tooth surface gear based on circular arc tooth profile, which comprises the following steps: firstly, determining model parameters of arc tooth surface gear and arc tooth generating rack; 2, establishing a spatial coordinate system according to that relative motion relation among the arc tooth produce rack, the arc tooth cylindrical gear and the arc tooth surface gear; 3, based on that tooth profile of the arc, establishing the tooth profile equation of the arc tooth generate rack; 4, deriving that equation of circular arc tooth profile arc tooth surface gear by the coordinate transformation method; 5, solving the meshing equation according to the conjugate meshing process of the simulated arc tooth cylindrical gearand the arc tooth surface gear; 6, calculating the tooth surface point cloud of the arc tooth surface gear through digital programming, and obtaining a three-dimensional model of the arc tooth surfacegear through array fitting. The utility model has the advantages of large coincidence coefficient of the tooth shape, stable and reliable transmission, strong bearing capacity, and can meet the transmission requirements under extreme conditions.

The present invention provides a transmission mechanism for a ground wire deicing automatic wiring device. An opening and closing conduction device is driven to be led to or separated from a power taking device, and the current of an iron tower power transmission wire is used for iron tower ground wire deicing. The transmission mechanism comprises a motor, an insulation transmission shaft and a speed reducer. The motor drives the speed reducer to rotate through the insulation transmission shaft. The speed reducer is connected to one end of the opening and closing conduction device and drives the opening and closing conduction device to be in sector movement. The insulation transmission shaft is selected to be the rotation element in the transmission mechanism, the insulation and torsional strength are satisfied, and a transmission requirement is satisfied.

The invention discloses a double crawler-type recreational walking vehicle. A left walking track assembly and a right walking track assembly are arranged at two sides of a cab balance roller; pedal walking mechanisms, a brake mechanism and a self-adaptive following variable pitch transmission mechanism and the like are arranged in the cab balance roller, wherein the pedal driving mechanisms are used for driving the tracks to proceed through the self-adaptive following variable pitch transmission mechanism; left and right independent pedal walking mechanisms can be used for controlling the running speed, going straight and turning of a running vehicle; the cab balance roller can be kept in a horizontal state when the walking vehicle goes up and down the slope on a road; and the self-adaptive following variable pitch transmission mechanism can automatically adjust along with the changes of the cab balance roller and the track walking mechanism, so as to satisfy the transmission requirements. The double crawler-type recreational walking vehicle is suitable for running on sand beaches, grasslands, snowfields and unsmooth pavements, is capable of intensively training skills of coordination and operation of two persons, is beneficial for leisure and recreation sports and fitness puzzle, has the characteristics of being reasonable in structure, simple to operate and flexible in riding, and has practical significances in development of fitness leisure sports instruments in our country.

The invention discloses a rammer body structure of a vibro-rammer. The rammer body structure comprises a box body, an eccentric mechanism and a driving mechanism, and the eccentric mechanism comprises an eccentric wheel; and the driving mechanism comprises a pump body, a pump cover, a driving gear and a driven gear, the driving gear and the driven gear are arranged in a pump cavity formed by the pump body and the pump cover, an inlet and an outlet are correspondingly formed in the box body and the pump body, the two ends of a wheel shaft of the driving gear are rotationally connected with the pump cover correspondingly, the shaft end of the driven gear extends out of the pump cover and is connected with one end of a wheel shaft of the eccentric wheel, the other end of the wheel shaft of the eccentric wheel is rotatably connected with the box body, and the two ends of a wheel shaft of the driven gear are rotatably connected with the pump cover correspondingly. A hydraulic motor is not needed on the outer side of the box body, the structure is simple, driving is convenient, the rammer body cost and the maintenance cost are reduced while the rammer body vibration requirement is met, driving is not prone to failing, hydraulic oil leakage is prevented, and the service life of the vibro-rammer is prolonged.

The invention discloses a centrifugal friction coupler. The centrifugal friction coupler comprises a driving coupling device, a driven coupling device, a connecting sleeve, a movement, centrifugal friction blocks, a bearing and a shell, wherein the driving coupling device is connected with the driven coupling device through the connecting sleeve, the movement is located on the driven coupling device, the centrifugal friction blocks are installed on the movement, the bearing is installed in the gap between the shell and the driven coupling device, the number of the centrifugal friction blocks is three, and the three centrifugal friction blocks are evenly distributed on the movement and provided with anti-static and anti-abrasion material layers. The centrifugal friction coupler has the advantages that centrifugal force can be adjusted in time due to the fact that the three centrifugal friction blocks are evenly distributed, and transmission requirements of large-power mechanical equipment are met; meanwhile, due to the fact that the anti-static and anti-abrasion material layers are arranged on the centrifugal friction blocks, danger caused by the rising of temperature of the surfaces of the centrifugal friction blocks can be avoided, and the service life is effectively prolonged.

The invention discloses a flat knitting machine two-stage stitch controlling device and a flat knitting machine and belongs to the field of flat knitting machines. The flat knitting machine two-stagestitch controlling device comprises at least one group of stitch cams and driving mechanisms corresponding to the group of stitch cams; the group of stitch cams are composed of an upper group of stitch cams and a lower group of stitch cams, the upper group of stitch cams are composed of an upper left stitch cam and an upper right stitch cam, and the lower group of stitch cams are composed of a lower left stitch cam and a lower right stitch cam; the driving mechanisms comprises a first driving mechanism and a second driving mechanism. The flat knitting machine two-stage stitch controlling device replaces a vertical double-layer overlapped arrangement manner with a horizontal arrangement manner with the upper and lower groups of stitch cams, thereby effectively enlarging the contact area between every stitch cam and butts of knitting needles, reducing wearing of the needle butts, avoiding releasing of the needle butts, and further reasonably increasing sinking depth as well as effectively improving the operation stability of the knitting needles. Driven by the two driving mechanisms separately, the flat knitting machine two-stage stitch controlling device can simplify the structure and meanwhile effectively enlarge the stitch adjusting range.