The type of bearing shell and positioning method

The strength and stiffness, bearing should be in bearing positioning, reliable and easy to input lubricant, easy to heat dissipation, and convenient installation and adjustment. Figure 1 a bearing, bearing type bearing type can be classified according to the structure, size, material and processing, the bearing network according to the specific knowledge sharing is as follows: 1, the bearing shell according to the structural classification according to the structure can be divided into integral bearing and bearing of type bearing. 1) Integral bearing figure 2 whole bushing of this type of bearing from the shaft end to install and remove, can repair the sex difference. 2) To open four figure 3 to open four this to open four can be directly from the central axis of installation and disassembly, can repair. 2, bearing shell by size classification according to the size of bearing or bearing can be divided into thin wall bearing and thick wall bearing shell. 1) Thin wall bearing figure 4 thin-walled bearing the thin wall bearing shell to save material, but insufficient rigidity, so the processing of bearing hole accuracy is high. 2) Thick wall bearing figure 5 thick wall bearing this kind of thick wall bearing shell has sufficient strength and rigidity, can reduce the bearing hole machining accuracy requirements. 3, according to the material classification bearing according to the material can be divided into single material bearing and bearing shell. 1) Single material figure 6 single busbar busbar this single material bearing strength enough material can directly make bearing shell, such as brass, gray cast iron. 2) More material bearing figure 7 two bearing this much material bearing shell lining strength is insufficient, so the more materials bearing shell. 4, according to the processing and classification of bearing according to the processing mode can be divided into casting bearing and rolling bearing. 1) Casting bearing figure 8 casting bearing this kind of casting bearing shell casting good manufacturability, single or mass production, is suitable for thick wall bearing shell. 2) Rolling bearing figure 9 rolled collar is only applicable to thin wall bearings, the rolling bearings of high productivity. Second, bearing positioning method 1, bearing positioning objective prevent between bearing and bearing axial and circumferential relative movement. 2, the axial positioning axial positioning can be divided into two kinds of circumstances, is a kind of flange positioning ( The bearing shell flange) one or both ends do And the other is lugs ( Positioning the lip) Positioning. Figure 10 axial positioning 3, circumferential orientation week orientation including tight set screw and fixed pin. Figure 11 set figure 12 pin screw bearings fixed axle bush three, the bearing shell oil hole and the groove 1, function: the lubricating oil import axle neck and movement of surface. 2, the principle of opening 1) As far as possible in the bearing section, do not reduce or less as far as possible to reduce the bearing capacity of the bearing area of oil film. 2) Axial groove can't open end to bearing, appropriate oil cover shall be maintained. 3, forms: 1) According to the tank to the points - — Along the axial direction, around the circumferential, oblique, spirals, etc. 2) Bearing faceted often decorated with vertical or near vertical load. 3) Large liquid on both sides of the sliding bearing is often designed to be in the form of oil, not only conducive to the formation pressure of oil film, and cooling effect. Important parameters (load inclined structure is shown in figure: As shown in figure) : note: width to diameter ratio (B/d - - - The ratio of the diameter and the diameter of axle bearing width. Liquid lubricated friction sliding bearing: B/d = 0. 5 ~ 1. Non liquid lubricated friction sliding bearing: B/d = 0. 8 to 1. 5.