4results about How to "Large axial load" patented technology

The utility model relates to a 90-degree steering output reduction gearbox, which comprises an outer box, an input shaft assembly, a middle shaft assembly and an output shaft assembly are arranged in the outer box, the middle shaft assembly is meshed with the input shaft assembly, the output shaft assembly is meshed with the middle shaft assembly, and the input shaft assembly is parallel to the middle shaft assembly and is perpendicular to the output shaft assembly. The output shaft assembly comprises a bevel gear wheel meshed with the intermediate shaft assembly and an output shaft in bolted connection with the bevel gear wheel, the bevel gear wheel is arranged in the shell, the output shaft extends out of the shell to be arranged in a bearing seat, and an output end bearing assembly matched with the output shaft and an output end oil seal assembly for sealing the bearing seat and the output shaft respectively are arranged in the bearing seat. The front end and the rear end of the input shaft assembly extend out of the shell. The utility model reduces the maintenance cost, can be matched with the power input of a high-power tractor, improves the transmission efficiency, reduces the noise and vibration, has high sealing reliability, and can effectively reduce the oil leakage.

The utility model discloses a small axial force multi-stage centrifugal pump which comprises a vertically arranged pump shell, a main shaft extending to the two sides is arranged in the pump shell, the upper end of the main shaft is provided with a balance drum, the balance drum is sleeved with a balance sleeve, and the outer curved surface of the balance sleeve is connected with the pump shell. A plurality of guide vanes are arranged at the upper end and the lower end of the interior of the pump shell, impellers are arranged at the upper end and the lower end of the main shaft, the upper impeller and the lower impeller are symmetrically arranged, and the multiple lower impellers correspond to the multiple lower guide vanes one to one and are located on the inner sides of the lower guide vanes one to one. The multiple upper impellers correspond to the multiple upper guide vanes one to one and are located on the inner sides of the multiple upper guide vanes one to one, a partition block is arranged at the middle end of the inner side of the pump shell, the lower end of the main shaft penetrates to the position below the partition block, and two first flange openings located on the upper side and the lower side of the partition block respectively are formed in the outer side of the pump shell. The small-axial-force multi-stage centrifugal pump has the advantages of being small in axial force and long in service life.

The utility model relates to the field of bearings, and discloses a double-row series angular contact ball bearing, which comprises an outer ring (10) and an inner ring (11), two rows of rolling bodies (12) are arranged between the outer ring (10) and the inner ring (11), the outer ring (10) surrounds the outer side of the inner ring (11), at least two flanges (101) used for being connected with a supporting unit are arranged at the end part of the outer ring (10), all the flanges (101) are uniformly distributed on the outer ring (10), and the inner ring (11) is arranged on the outer ring (10). And the flange (101) is provided with a mounting hole (102) for a bolt to pass through. A flange is additionally arranged on the outer ring and connected with the end face of the supporting unit through a bolt, higher connecting strength can be provided, axial pre-tightening force can be generated, and therefore the rotating precision of the bearing is improved, the rigidity of the bearing device is improved, the number of rolling bodies borne in the bearing is increased, the rationality of load distribution in the bearing is improved, and the service life of the bearing is prolonged.

The present disclosure relates to the technical field of electromagnetic bearing, and particularly relates to an electromagnetic bearing rotor system, which comprises a rotating shaft and a mounting base, the mounting base is coaxially provided with an electromagnetic bearing assembly and an auxiliary bearing assembly, the rotating shaft is arranged through the electromagnetic bearing assembly and the auxiliary bearing assembly; the auxiliary bearing assembly comprises an outer ring valve seat, an inner ring valve seat and an auxiliary bearing, the outer ring valve seat is connected with an outer ring of the auxiliary bearing, and the inner ring valve seat is connected with an inner ring; a gap is formed between the outer ring valve seat and the mounting base along the axial direction of the rotating shaft, an elastic member is arranged in the gap, a connecting hole for the rotating shaft is arranged on the inner ring valve seat, an abutting surface is formed on the wall of the connecting hole, the abutting surface is inclinedly extended along the axial direction of the rotating shaft and away from the rotating shaft, the rotating shaft is abutted with the abutting surface, so that the axial and radial loads are balanced through the elastic member, the auxiliary bearing is protected, the supporting effect of the auxiliary bearing assembly on the rotating shaft is further improved, and the electromagnetic bearing assembly is better protected.