2013年7月23日星期二

One-way bearing design and use of the following:


1, the slope and the slope Roller bearing and roller one-way clutch drum diameter of the outer ring consisting essentially of, respectively, with slopes exposed to the inner ring and the spring force and are always in close contact with the inner and outer rings of a group of roller components. As long as one of the raceway in the direction of its movement of rotation to another factor affecting the production, from the essence of this arrangement ensures the immediate beyond the speed and ensure the immediate drive capability. Use: This one-way bearing design can fit in a variety of environments beyond, indexing, and the use of non-return. When used as a one-way clutch is used beyond the ramp-up, one-way roller clutch will be installed in this manner, is to go beyond the outer ring as a member. This is very important for high-speed beyond. Beyond the use of the inner ring, the role of the centrifugal force on the roller will cause beyond the speed is limited. When used as an anti-reverse one-way clutch inner ring rotates when using only one-way roller clutch ramp suitable for relatively low speeds. If desired speed is higher than the recommended speed, we recommend using wedge-type one-way clutch. When used as an indexing when using one-way clutch outer race has often been seen as swinging element, the inner ring is often seen from the component. Otherwise, the roller and spring inertia will lead to errors, especially in high frequency degrees. Diluted the use of lubricants and strong spring provides high-speed indexing accuracy and quality of. 2, wedge-type design of this wedge-type one-way clutch largely from the inner ring, outer ring, wedge group, wedge cage, strong spring and bearing components. Wedge to wedge between the inner and outer rings come from one raceway to another raceway passing power. The wedge has both a diagonal diameter (that is, from the wedge corner to the opposite corner of the distance) is greater than the other one. Wedging action occurs when the inner and outer rings relative rotation relatively large cross-section of the wedge to force a greater vertical position. 3, self-locking wedge angle between the inner and outer rings rely mainly on the role of the wedge and the self-locking wedge angle. The basic concepts of the wedge-way clutch coefficient of friction requirements of the wedge drive torque suddenly inner direction of a relationship, the self-locking friction value higher than the tangent of the angle value is large. If the conditions are unsafe, wedging will not occur. Self-locking wedge angle of the structure is determined, a point on the inner and outer rings, respectively, and connected with wedges. The design of the wedge have a very low initial self-locking angle to ensure the absolute beginning of the binding. With the increase in the torque, but the wedge wedge will generate a radial force deflection roller, resulting in a wedge-roll to a new location. Wedges are often designed with a self-locking can be gradually increasing angle with it from the position beyond the maximum load Stainless steel slewing bearing up to the same position. Relatively large self-locking wedge angle can reduce production costs by a radial force, so long as the elongation and Brinell hardness is permitted within the limits required a larger torque is transmitted.

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