Graphic radial sliding bearing and thrust bearing structure

Mechanical equipment operation, work under sliding friction bearings, can be referred to as the sliding bearing, according to the direction of load and sliding bearing can be divided into two categories, the radial sliding bearing and thrust bearing, China bearing network further on the radial and thrust bearing structure types of knowledge. Radial sliding bearing radial sliding bearing structure is divided into integral radial sliding bearing and split the radial sliding bearing. And split again in radial sliding bearing has two to open the radial sliding bearing and self-aligning type radial sliding bearing. 1, monolithic radial sliding bearing monolithic radial sliding bearing is composed of bearing seat, one-piece axle housing, etc. Threaded hole of bearing seat is equipped with installation of lubricating oil cups. Have oil hole on the shaft sleeve and a oil groove on the inner surface of the axle housing. This kind of bearing has the advantage of simple structure, low cost. Its disadvantage is that the bushing wear, fail to adjust bearing clearance; In addition, only from the shaft end, installation for the quality of a big shaft or with the axis of the intermediate shaft neck, inconvenient installation and even cannot be achieved. So this kind of bearing is multi-purpose at low speed, light load or intermittent work the machine. Radial sliding bearing 2, split to open a radial sliding bearing by open sliding bearing housings, bearing cover, split bearings and double end studs, etc. Subdivision surface is often done step, to counteract prevent transverse rupture. Upper bearing cover _ threaded holes to install oil cup. Also split bearing, usually by the lower bearing load bearing. In order to save precious metals or other needs, often within the bearing shell layer on the surface of casting bearing bush. Open a groove on the inner wall of the bearing, the bearing section, lubricating oil through the oil hole and the oil flow into the bearing gap. Bearing subdivision surface and the best load approximate vertical direction, most of the subdivision surface is horizontal bearing ( Have made tilt) 。 Convenient operation this kind of bearing, and bearing wear can be used to reduce subdivision surface area after the shim thickness to adjust bearing clearance. Type b self-aligning radial sliding bearing and the ratio of the diameter of axle bearing width ( B / d) Referred to as the width to diameter ratio. For B/d> 1. 5 bearings, automatic self-aligning bearing can be used, its characteristic: the bearing shell made spherical outside surface, and the bearing cover and match the inside surface of ball bearing, bearing bush can automatically adjust to adapt to the diameter of axle in generated when the shaft bending deflection. Thrust bearing thrust bearing is composed of bearing and thrust journal. Will sometimes in the liquid friction sliding bearing bush and the bearing made of an organic whole, the structure of commonly used how small the ring type and ring type, usually without solid type journal, due to uneven wear and pressure distribution on the surface of the port, near the center of pressure is very high, to the detriment of lubrication. Commonly used shaft neck structure are: the thrust side of thrust bearing and open wedge Angle of the single direction, wedge at the top of the platform. As shown in the figure below, shaft for one-way rotating, axial force of thrust bearing, thrust surface is fixed type of thrust bearing. The graphic is tilting type thrust bearing, bearing bush around a fulcrum free swing, make tile automatically adjust according to the changes in the working condition of the slope. Fan-shaped segment is usually 6 - 12 pieces.