Slewing bearing

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

Image acquisition device and system for cutter state detection

Abstract: The utility model discloses an image acquisition device and system for cutter state detection, and the technical scheme is that the image acquisition device comprises a guide disc, an external tooth slewing bearing, a driving mechanism, a cutter side edge and diameter image acquisition mechanism, and a cutter end face image acquisition mechanism, the guide disc is installed above the external tooth slewing bearing, and the external tooth slewing bearing is connected with the driving mechanism; the cutter side edge and diameter image acquisition mechanism is connected with the guide disc through a slider-crank mechanism, and the cutter end face image acquisition mechanism is arranged in the center of the guide disc. According to the utility model, images of the rear cutter surface and the attached rear cutter surface of each cutting edge of the cutter can be simultaneously acquired and detected, so that the detection efficiency is improved, and the detection reliability is also ensured.

Positioning tool for core penetrating pipe

Abstract: The invention discloses a positioning tool for a core penetrating pipe The positioning tool for the core penetrating pipe is used for coaxially positioning the core penetrating pipe (200) to the center of a slewing bearing (300) The positioning tool for the core penetrating pipe comprises a positioning support (10) and an installing seat (20) installed on the positioning support The positioning support is provided with a surface fixing part (14) and at least two distance fixing parts (13) The surface fixing part is used for making contact with the upper surface of a supporting table The at least two distance fixing parts are used for making contact with the inner circumferential surface of the slewing bearing and are spaced in the circumferential direction of the slewing bearing The distance between each distance fixing part and the axis of the installing seat is equal to the inner radius of the slewing bearing When a core penetrating pipe support is replaced, the positioning tool is used, a boom and a rotary table do not need to be detached, and an operator can finish positioning on the core penetrating pipe only by entering the rotary table; and operation is simple, and the maintenance and replacement cost and the labor intensity are greatly reduced

Seal structure of slewing bearing and slewing section support apparatus

Abstract: PROBLEM TO BE SOLVED: To provide a seal structure of a slewing bearing that has stable adhesive strength and superior removal workability during seal replacement, without being influenced by the use environment, and a slewing section support apparatus SOLUTION: The slewing bearing is equipped with a pair of elastic seal members 5 that seal each end in the axial direction of a bearing space 4 on inner and outer rings 1, 2 Fitting recesses 7, 7 into which the bases 6 of the seal members 5 are press-fitted are disposed on both the inner and outer rings 1, 2, and press-fit interferences having a shape with recesses and projections are disposed on either the bases 6 of the seal members 5 or on the interior of the fitting recesses 7, 7, or on the both The bases 6 of the seal members 5 are press-fitted and fixed into each of the fitting recesses 7, 7 via a silane adhesive COPYRIGHT: (C)2011,JPO&INPIT

Spray coating protection device for slewing bearing gasket of tower crane

Abstract: The utility model discloses a spray coating protection device for a slewing bearing gasket of a tower crane The spray coating protection device for the slewing bearing gasket of the tower crane comprises at least two protection blocks (3) which jointly form an annular shape At least one handle (4) is arranged on the top face of each protection block (3), and cylinders (5) are evenly distributed on the bottom face of each protection block (3) The number and the positions of the cylinders (5) correspond to bolt mounting holes (6) in the slewing bearing gasket (1) in a one-to-one mode, and the cylinders (5) and the bolt mounting holes (6) are in interference fit Due to the fact that the cylinders of the protection blocks are in interference fit with the bolt mounting holes of the slewing bearing gasket, the protection blocks are tightly attached to the surface of the slewing bearing gasket and comprehensively protects the surface of the slewing bearing gasket and the bolt mounting holes, and the protection effect is not influenced when turning over of spray coating occurs

Gap-adjustable slewing drive device

Abstract: The invention provides a gap-adjustable slewing drive device which comprises a base seat, a slewing bearing and a worm. The base seat comprises a shaft housing and a seat ring; the slewing bearing comprises an inner ring, an outer gear ring and a roller embedded between the inner ring and the outer gear ring; the inner ring is fixed on the seat ring; the worm is arranged inside the shaft housing and is meshed with the outer gear ring of the slewing bearing; in order to reach the effect that a gap between the worm and the slewing bearing is adjustable, the gap-adjustable slewing drive device is further provided with an end cap and a motor adjusting block; bearing holes are arranged at the inner sides of the end cap and the motor adjusting block, and mounting holes are arranged at the outer sides of the end cap and the motor adjusting block; the circle where the bearing holes and the mounting holes of the end cap and the motor adjusting block are positioned is an eccentric structure; and during the mounting process, the spatial position of the worm can be changed by rotating the end cap or the motor adjusting block so as to reach the purpose of adjusting the gap between the worm and the slewing bearing. The gap-adjustable slewing drive device has the advantages of big gap adjustment range, simple structure, small occupying room, convenience in adjustment and low cost.