Slewing bearing

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

Walking device of slewing bearing

Abstract: The invention provides a walking device of a slewing bearing. The device comprises a vehicle frame, at least three supporting leg structures, the supporting leg structures comprise wheels and wheel supporting frames, the wheel supporting frames are connected with the vehicle frame through slewing bearings and used for achieving rotatable connection between the wheel supporting frames and the vehicle frame, the slewing bearings comprise inner rings and outer rings which can be rotated relative to each other, transmission teeth are arranged on the outer surfaces of the outer rings, the transmission teeth are connected with a transmission mechanism in a ratcheting manner, the transmission mechanism is connected with a slewing drive, the rotary control of the slewing bearings is achieved by the slewing drive through the transmission mechanism, the wheels are driven by an independent driving device, and the center lines in the vertical directions of the wheels keep a certain distance from the central axis lines of the slewing bearings. By means of the walking device, steering control is strength-saving, translation turning can be achieved, blind areas of operation are less, the damage on crops is effectively reduced, and wide-width operation can be achieved.

Wind generator set

Abstract: The invention discloses a wind generator set which comprises a wind wheel device, a rack and at least one group of generating mechanisms fixedly mounted on the rack, and further comprises slewing bearings, wherein the generating mechanisms comprise gear shafts; each slewing bearing adopts a disc structure, is mounted between the wind wheel device and the rack, and comprises an inner ring and an outer ring; each inner ring is fixed on the rack; each outer ring is rotationally arranged on the periphery of the corresponding inner ring in a sleeving manner, and fixed on the wind wheel device, so that the wind wheel device can be rotationally mounted on the rack; teeth are formed on the edge of each outer ring; and the gear shafts of all the generating mechanisms are meshed with the teeth of the outer rings. The wind generator set provided by the invention has the following advantages: due to transmission connection between the wind wheel device and the gear shafts of the generating mechanisms through the slewing bearings, the main-shaft-less structural design is achieved, the power transmission chain of the wind generator set is more compact, the miniaturization of generators and other equipment in the generating mechanisms is facilitated, and the consumption of cables is further reduced.

Roller bearing cage for use as axial bearing cage, particularly in slewing bearing, has metallic carrier with sections distributed over circumference and plastic inserts accommodated in sections in loss-proof manner

Abstract: The roller bearing cage (1) has a metallic carrier (3) with sections (11) distributed over the circumference and plastic inserts (12) accommodated in the sections in a loss-proof manner The carrier is formed of two layers (4,5) of circular segment-shaped band segments (6,7,8) The band segments of the former layer are displaced opposite to the band segments of the latter layer with respect to their front-sided ends (9,10) in the circumferential direction

Double-cylinder yoke type bell-free blast furnace charge distributor

Abstract: The utility model discloses a double-cylinder yoke type bell-free blast furnace charge distributor which comprises a distributor box, a top cap, a water cooling disc, an upper slewing bearing, a rotary sleeve, a backing ring, a lower slewing bearing, a trunnion, a trunnion crank, a chute bracket, a chute, a venturi and a horizontal transmission gear for controlling the beta angle of the chute; and the distributor has the key improvement that the distributor further comprises a backing ring drive mechanism, wherein the backing ring drive mechanism comprises a rigid drive yoke, a rigid balance yoke and a drive device which is used for driving the rigid drive yoke and the rigid balance yoke to move up and down. The distributor has the advantages that through applying two rigid yokes, the phenomenon that the backing ring is easy to generate multi-directional tilting during the moving process can be effectively avoided; and moreover, two hydraulic cylinders utilize the rigid yoke to be mechanically linked with each other, and under abnormal conditions that the two hydraulic cylinders are asynchronous and the like, the rigid yokes can effectively protect the safety of the backing ring and the parts of the downstream of the backing ring under the allowable maximum load.

Single-row four-point contact ball-type slewing bearing rolling path measuring rod

Abstract: The utility model discloses a single-row four-point contact ball-type slewing bearing rolling path measuring rod, and belongs to the technical field of industrial measurement The measuring rod comprises a fixing support (3) of which the number is not less than one, and supporting bars of which the number is not less than two The supporting bars comprises a short supporting bar (6) and a long supporting bar (61), two ends of the fixing support are respectively connected with the supporting bars via a connection rack (8), and the supporting bars are installed coaxially A fixed measuring hemisphere rack (1) is installed at a tail end of the short supporting bar, and a fixed measuring hemisphere (11) is disposed on the fixed hemisphere rack A moving measuring hemisphere rack (4) is installed at a tail end of the long supporting bar, a moving measuring hemisphere (41) is disposed on the moving hemisphere rack, and a dial indicator (5) is connected with and installed on a back side of the moving measuring hemisphere The measuring rod is advantageous in that: rolling path dimensions of slewing bearings with different sizes can be obtained fast and accurately by the measuring rod, and measurement accuracy and processing efficiency of the slewing bearings are improved