What are the advantages of ball cage universal joint shafts compared to cross shaft universal joint shafts?

The ball cage universal shaft is connected to the main and driven shafts according to the second ring of the ball cage and the star-shaped inner ring. The center of the power transmission bearing steel ball is located in the plan view according to the center of the coupling, and is installed on the ball. In the raceway formed by the outer curved groove of the second ring and the star-shaped inner ring, the centers of the two curved surfaces overlap with the center of the universal coupling, in order to better ensure that the centers of all bearing steel balls are between the center lines of the two shafts. The bearing steel ball is installed in the ball cage, which ensures that when the angle between the main and driven shafts of the coupling changes, the transmission support point can be located on the bisecting line of the included angle from beginning to end. Therefore, the ball cage The transmission speed between the main shaft and the driven shaft of the universal joint is maintained at the same time.

The drive method of the ball cage universal joint shaft can choose to use drag transmission or flip transmission. In order to better buffer and reduce shock when selecting the drag transmission, a polymer buffer sleeve 3 is installed on the ball arm and the force transmission arm. When the flip transmission is selected, the genuine buffer sleeve 3 is converted into a flip part on the ball arm and the force transmission arm. In addition, the genuine shock-absorbing rubber pad is also changed into a flip part between the ball cage and the socket. In order to integrate the rigidity transmission must.

Spherical plunger pump type universal coupling The spherical plunger pump type universal coupling is a new type of universal coupling. It is composed of a force transmission arm pair and a connecting plate. There are two connecting plates. The stock plate opens. A plurality of grooves or grooves are used to connect the force transmission arm pair and the rolling bearing and other components, and the three same force transmission arm pairs are connected between the two connecting plates, and they are evenly distributed on the same half of the connecting plate. Each force-transmitting arm pair is a telescopic joint, and the limit switch 8 is used for precise adjustment and positioning. The force transmission arm pair includes a ball arm 5 and a force transmission arm 2. The force transmission arm is installed in a hole or groove of one receiving plate with an anchor bolt 1, and the ball arm is installed in a hole or groove of the other receiving plate. The ball arm and the force transmitting arm are connected according to the ball cage and the socket. A mortar-shaped screw cap 4 is located outside the mortar seat for precise positioning.

The ball cage universal joint shaft has the following advantages compared with the cross shaft universal joint:

(1) It has the characteristics of buffering and shock absorption, which can reduce noise, and it is fully automatic circulatory system lubrication;

(2) Under the same rotating diameter and tilt angle, the bearing capacity can be increased by 0.5 to 1 times;

(3) Good synchronization, even the single spherical hinge plunger pump universal coupling can ensure synchronization;

(4) The initial compensation of shaft diameter x and axial y are both large, especially the shaft diameter x can be completed without the spline shaft of the network part;

(5) The structure is novel, the quality is light, the process performance is good, it is convenient for mass production, and the cost is controlled;

(6) Reliable during work, convenient assembly and disassembly, easy maintenance, and long service life. It is not only a universal component of shaft transmission for low-speed gear and light load and basic speed ratio, but also can be used for high-speed transmission. The universal coupling is widely used in the application field, especially suitable for shafting transmission with large tilt angle and restricted axial specifications.