Slewing bearing

About: Slewing bearing is a research topic. Over the lifetime, 1498 publications have been published within this topic receiving 5309 citations.

New selection curves for four contact point slewing bearings

Abstract: The selection of slewing bearings is based on the static load-carrying capacity. In this sense, manufacturers provide selection curves in their catalogues. However, little information is given about their origin. This work develops new and more versatile selection curves for four contact point slewing bearings, with a clear explanation of their background, scope and limitations. The new curves take into account the two possible static failure types, the ball-raceway contact failure and the bolted joint failure.

Continuous wall grab arm tip slewing mechanism

Abstract: The utility model discloses a continuous wall grab arm tip slewing mechanism, which relates to the field of piling machine continuous wall grabs. The slewing mechanism comprises an arm tip platform, a hydraulic motor reducer installed on the arm tip platform, a small gear driven by the hydraulic motor reducer, a small-diameter slewing bearing meshed with the small gear, and a flexible assembly consisting of the small-diameter slewing bearing, an upper rotary seat, a cross bearing and a lower rotary seat. The continuous wall grab arm tip slewing mechanism has the advantages of compact integral structure, sable running, convenient detachment and maintenance, long service cycle.

Novel car gyration dish device

Abstract: The utility model provides a novel car gyration dish device, include: base, base are fixed subaerial, and the base upside is equipped with the platen, and the platen upside is equipped with the backup pad, the platen bottom was fixed with the cab apron, it is fixed with the slewing bearing bearing to cross the cab apron, slewing bearing bearing inner race is equipped with circular gear, slewing bearing bearing inner race gear and motor gear engagement, the motor gear is through setting up the motor gearbox drive in base one side, the motor reducer is fixed on the base. The utility model discloses structural design is simple, utilizes motor reducer gear and slewing bearing bearing inner race gear to cooperate and drives, improves transmission efficiency, improves the transmission precision stationarity for carousel work is more smooth.

Servo frame and construction machine with same

Abstract: The utility model relates to a servo frame and a construction machine with the same. The servo frame comprises a slewing bearing, two slide shoes and two connecting arms, the slide shoes are connected with one ends of the connecting arms respectively, and the slewing bearing is connected with the other ends of the connecting arms. Each connecting arm is cut off to form a first arm portion and a second arm portion which are connected via a flexible connecting structure. Each flexible connecting structure comprises a connector and an elastic part, the connectors connected with the first arm portions and the second arm portions, and the elastic parts are sleeved with the connectors. The connecting arms of the servo frame are divided into the first arm portions and the second arm portions, and the first arm portions and the second arm portions are connected by the flexible connecting structures, so that the servo frame can displace slightly on the premise of always keeping a certain total size, and buffering and vibration absorbing are realized.

High accuracy slewing bearing device that oils

Abstract: The utility model discloses a high accuracy slewing bearing device that oils relates to machinery, including base, slewing bearing, crane, base, dextrorotation lead screw, levogyration lead screw, clamp splice and motor, slewing bearing fixes the outer lane on the base, circle in the slewing bearing to be connected with the base, be equipped with centering structure on the clamp splice, the crane has cup jointed an oil -out slider, oil -out slider below is equipped with the oil -out, be equipped with crane location slider on the riser guide, be equipped with crane set nut on the slider of crane location, fix a position the slider through the crane, fix the oil -out in the specified altitude assignment, be equipped with the scale on the crane for the oil -out can be fixed in the appointed position of producing oil, and right rear drive motor drives drive gear, drives inner ring of the slewing bearing steady rotation again, thereby drives and wait the work piece steady rotation that oils, and the oil -out evenly produces oil simultaneously, and evenly the high accuracy oils for the slewing bearing work piece.