How to choose universal coupling according to the rotation diameter

How to choose universal coupling according to the rotation diameter?

The rotation diameter of the universal joint is explained in a professional way as the corresponding circumference of the movement track of the outer end of the workpiece when it rotates around a fixed axis. The circumference diameter is the rotation diameter. If it is turning a round workpiece, the rotation diameter of the universal coupling refers to the limit value of the outer diameter of the workpiece. When turning an eccentric workpiece, the rotation diameter of the universal coupling refers to the diameter of the movement track on the rotation center of the workpiece. To realize the smooth transmission of the universal joint, it is necessary to use 2 universal joints.

Because if a universal joint is used, the rotational speeds at the left and right ends are not equal, which will affect the smooth transmission and fluctuate. Therefore, use another universal joint to convert the fluctuating rotational speed into a stable rotational speed. Achieve their goals. The measurement of the coaxiality of the universal joint is an important task, so it cannot be treated carelessly. According to professional and technical personnel, generally four positions are evenly distributed on the end surface and circumference of the universal coupling, and then the measurement work is performed.

How to choose universal coupling according to the rotation diameter?

The rotating diameter of the universal joint is the corresponding circumference diameter of the outermost movement trajectory when the workpiece rotates around the fixed axis. When turning a round workpiece, the turning diameter is the largest outer diameter of the workpiece. When turning an eccentric workpiece, it is the diameter of the movement track farthest from the center of rotation on the workpiece.

A universal joint with an excessively large rotating diameter has a large transmission torque and heavy weight. Therefore, the cylindrical roller thrust bearing is placed on the head of the cross shaft or the root of the cross shaft. Cylindrical rollers are designed in 4 to 5 rows, cylindrical rollers are designed as convex universal joints. The type of rolling elements (divided into cylindrical needles and cylindrical rollers), sliding thrust bearings or cylindrical roller thrust bearings, are mainly related to universal joints. The rotating diameter of the joint is related to the characteristic rotational speed of the transmitted torque. Generally speaking, universal joints with a small transmission torque and centered on the transmission movement use needle bearings, and the end face of the cross shaft shaft head adopts a thrust bearing.

If the two shafts of the universal coupling are not on the same axis, the universal coupling can be used. In addition, there is no problem in the use of universal couplings. In addition, when there is an axis angle, the two connected shafts can be continuously rotated for reliable torque transmission and normal movement. Compared with ordinary universal joints, spider universal joints have the huge advantages of connecting two drive shaft systems on different axes, and normal torque transmission and movement, so as to achieve the purpose of use and higher use effects.

Different types of couplings require lubricants like universal couplings, but in the case of diaphragms and plum couplings, lubricants are not required. In addition, the damping, wear resistance and cushioning performance of the plum coupling is better than that of the diaphragm coupling. The nominal torque of the universal coupling means that the joint can transfer torque normally in a short time, and the fatigue torque means that the joint can transfer torque normally when the joint is working for a long time and with a very large number of cycles. The small double spider type universal joint is a double spider type, and the small single spider type universal joint is a single spider type. In addition, they are different in application.

How to choose universal coupling according to the rotation diameter?

The rotating diameter of the universal joint is the corresponding circle of the outer end motion trajectory when the workpiece rotates around the fixed axis. It is specifically stated that the circle diameter is the rotating diameter. When turning a round workpiece, the rotating diameter of the universal joint is the limit value of the outer diameter of the workpiece. When turning an eccentric workpiece, the rotating diameter of the universal joint refers to the diameter of the motion track at the center of the workpiece's rotation. In order to achieve smooth transmission of universal joints, two universal joints are required.

How to choose universal coupling according to the rotation diameter? Using a universal joint, the rotation speed of the left and right ends is not equal, which affects the smooth transmission and changes. Therefore, another joint can be used to convert the variable rotation speed into a smooth rotation speed to achieve the goal. The measurement of the coaxiality of the universal joint is an important task, so it should not be neglected.