5results about How to "Prevent off-chain" patented technology

The utility model discloses a kind of tank uniform shaking devices, including rack, at least two groups of parallelly arranged rotating shaft assembly, transmission sprocket, drive assembly and idler sprocket. Rotating shaft assembly includes shaft and at least two adjustable wheel diameters adjusting wheel of sleeve set in the outer periphery of shaft, by locking bolt fixed and spacing adjustable;Transmission sprocket is positioned by way of key and is axially fixed using locking bolt, and different specifications can be quickly replaced to adjust transmission ratio;Drive assembly is driven by chain, cooperates idler sprocket and symmetrically arranged double-tension sprocket to realize chain stable tensioning, and idler sprocket height is adjustable to enhance tensioning force;Shaft both ends adjusting wheel is equipped with anti-slip retaining edge, rack bottom is equipped with universal caster and threaded lifting foot cup;The device has high universality, and different specifications tank is adapted by adjusting wheel diameter and spacing, transmission sprocket replacement realizes speed regulation, and double-tension structure ensures transmission stability, solves chain slack problem, and is suitable for the efficient mixing demand of multi-specification tank.

The utility model relates to the technical field of chain wheels, and discloses a chain-off-preventing chain wheel which comprises a protective shell and a chain wheel body, the chain wheel body is arranged in the protective shell, the rear surface of the protective shell is fixedly connected with a connecting disc, the upper end of the connecting disc is fixedly connected with a mounting plate, and the center of the surface of the connecting disc is rotationally connected with a rotating shaft. The end of the rotating shaft penetrates through the protective shell and is rotationally connected with the inner wall of the protective shell, the surface of the rotating shaft is fixedly connected with the chain wheel body, first connecting shafts are rotationally connected to the upper end and the lower end of the rear surface of the connecting disc, connecting rods are fixedly connected to the surfaces of the first connecting shafts, and auxiliary chain wheels are arranged at the ends, away from the first connecting shafts, of the connecting rods. Auxiliary structures are arranged between the auxiliary chain wheels and the chain wheel bodies and between the auxiliary chain wheels and the connecting rods, the auxiliary chain wheels at the two ends can be supported towards the upper end and the lower end by arranging the auxiliary structures, shaking and jumping of the chain in the transmission process can be reduced by opening the chain, and the transmission stability is kept.

The utility model discloses a seeding machine with a speed change function. The seeding machine comprises a rack and a speed change mechanism, the rack is a seeder rack, a plurality of seeding devices are fixed on the rack by adopting a plurality of groups of seeding frames, ground wheels with wheel structures are arranged at the front ends of the seeding devices, the ground wheels are rotationally matched with the seeding frames, a wheel frame is fixed at each of two ends of the rack, a traveling wheel is matched with the lower side of each group of wheel frame, and a wheel shaft gear is coaxially fixed on each traveling wheel; the upper side of the wheel carrier is matched with a first transmission gear; the axle gear and the first transmission gear are in transmission fit through a chain, a second transmission gear is rotationally matched on the rack, the second transmission gear and a seed metering gear of the seed metering device are in transmission fit through a chain, and the first transmission gear and the second transmission gear are in transmission connection through a speed change mechanism; the utility model has the beneficial effects that the rotating speed of the seed-metering device can be adjusted, the application range is wide, and the speed change mechanism can be prevented from losing power due to chain separation.

The utility model discloses a mud scraper buoyancy type low-deflection high-reliability main shaft system which comprises a shaft body, a closed cavity is arranged in the shaft body, at least one first flange plate is arranged on the shaft body, at least one second flange plate is arranged at two ends of the shaft body, the first flange plate is used for connecting a chain towing wheel, and the second flange plate is used for connecting a chain towing wheel. According to the buoyancy type low-deflection high-reliability main shaft system of the mud scraper, the cavity is formed, so that the main shaft generates buoyancy to counteract gravity, bending deformation generated by gravity friction and self weight is reduced, and a chain towing wheel is conveniently connected through the first flange plate; key connection of the main shaft driving wheel and the driven wheel is replaced by second flange connection, axial movement of the main shaft driving the driven wheel is reduced, and chain disengaging is avoided.