Coupling (coupling)
Coupling (coupling)
Universal coupling a variety of structural type, such as: Cross-axis, Cage-style, ball fork, convex block-style, ball pins, ball-type hinge, ball plunger-type hinge, three pins, tripod , the three-ball type, hinge rod, etc. The most commonly used for cross-axis, followed by Cage dragon, a common feature of universal coupling angle to compensate for relatively large quantities of different structural type universal coupling 2 axis angle is not the same, generally ≤ 5 ° -45 ° between. Universal Coupling the use of its institutional characteristics, so that the two axes not in the same axis, there is the angle between the axis of the circumstances to achieve the two-axis continuous rotary connection, and reliable transmission of torque and motion. Universal coupling biggest feature is a large angle to the ability to compensate, compact structure, transmission and high efficiency. In practice, the size of the basis of torque transmission is divided into heavy, medium, light and small.
Is used to connect different bodies of the two axes (active-axis and slave axis) so as to transfer torque common rotating mechanical parts. The power transmission in high-speed heavy, some couplings are buffering, vibration and improve the dynamic performance of the role of the shaft. Coupling consists of two and a half parts, respectively, with the driving shaft and driven shaft connection. Most of the general power machine by means of coupling and link the work of machines. Coupling a wide range, according to two axes are connected relative position and location of changes can be divided into: ① fixed coupling. Is mainly used for two-axle demanding right and in the work place where the relative displacement does not occur, the structure are generally more simple and easy to manufacture, and the two-axis instantaneous speed the same, mainly flange coupling, sleeve coupling, clamp shell coupling and so on. ② Movable coupling. Is mainly used for two axis deviation or a relative displacement in the work place, according to the method of compensation for displacement can be divided into rigid and flexible couplings Movable Movable coupling. Coupling the use of removable rigid coupling between the composition of the work of moving parts connected with a certain direction or a few degrees to compensate for the direction of the activities, such as the jaw coupling (allowing axial displacement), cross-groove coupling device (used to connect the parallel displacement or angular displacement of a small two-axis), universal coupling (for two-axis deflection angle greater or at work have a larger angular displacement of the place), gear coupling (allowing an integrated displacement), Chain Couplings (allowed for radial displacement), etc., flexible removable coupling (the flexible coupling) the use of elastic deformation of the elastic element to compensate for 2-axis deflection and displacement, while elastic element also has buffering and damping properties, such as snake-like spring coupling, radial multi-spring coupling, flexible coupling ring bolt pin, nylon bolt pin coupling, rubber sleeve coupling, etc. . Coupling some were standardized. Choice should be based on job requirements before the selection of the appropriate type, and then calculated according to the diameter of shaft torque and rotational speed, and then find out from the manual application of the model, Finally, some key parts to make the necessary checking.