Cone sleeve is a new type of mechanical transmission connecting part widely used in European and American countries. It has the characteristics of high standardization, high precision, compact structure, convenient installation and disassembly and so on. The centering accuracy of various transmission parts is greatly improved by pressing and connecting the 8-degree outer cone with the inner cone of belt pulley, sprocket and other transmission parts. The taper sleeve size is a series of standard design. The keyway of its inner hole shall be processed according to ISO standard.
Versatility, good interchangeability, suitable for various occasions When the transmission part runs for a long time, the inner hole and chain groove may be damaged. If it is a transmission part using this cone sleeve, in this case, it can be restored by replacing the cone sleeve of the same specification.
Therefore, the service life of transmission parts is greatly improved, the maintenance cost is reduced and the time is saved.
The cone sleeve is mainly divided into TB cone sleeve, QD cone sleeve and STB cone sleeve. The holes at the matching part of the cone sleeve and the belt pulley are half side, and the two smooth holes on the cone sleeve and the two threaded holes on the belt pulley form a complete hole respectively, and a threaded hole on the cone sleeve and a smooth hole on the belt pulley form a complete hole. During assembly, put two screws in the two threaded holes of the belt pulley. As the screws are tightened in the threaded holes on the belt pulley, the thread action pushes the screws to the small end of the conical hole on the belt pulley, while the two smooth holes on the conical sleeve are not fully processed. In this way, when the head of the screw butts the bottom of the smooth hole, the force is transmitted to the conical sleeve, The taper sleeve moves to the small end of the taper hole of the pulley relative to the pulley. At this time, due to the taper, the taper sleeve continues to wrap the shaft, and the shaft reacts on the taper sleeve and then on the pulley. In this way, the pulley, cone sleeve and shaft are closely assembled together.
On the contrary, during disassembly, put the screw withdrawn from the pulley threaded hole into the threaded hole on the taper sleeve with one. In the process of continuous tightening, the screw also moves towards the small end of the pulley tapered hole. When the screw head butts the bottom of the pulley smooth hole, the force is transmitted to the pulley. At this time, the pulley moves towards the small end of the pulley tapered hole relative to the taper sleeve. In this way, The belt pulley is separated from the cone sleeve, and the cone sleeve is also separated from the shaft because it has lost the binding force from the cone hole of the belt pulley and a little elasticity to restore its roundness.
When the taper sleeve connects the pulley with the shaft, an interference fit connector is formed. The inner hole of the cone sleeve is connected with the shaft with a key, which transmits torque and force through the key. Although there is no key connection between the cone sleeve and the pulley, there is positive pressure on the joint surface, and the friction generated can transmit torque and force.
