Hits: 20452019-02-28 17:08:33 source: Ever-Power Group|European Standard Pulley|Taper Sleeve|HRC Coupling|Other
The taper sleeve pulley is a mechanical connection assembly in which a taper sleeve is embedded between the installation shaft and the pulley. The pulley is self-locked to the taper sleeve by the hexagon socket screw, and the installation shaft is held tightly by the taper sleeve.Compared with ordinary straight hole type pulleys, it has many advantages: compact structure, no need for shaft positioning, easy installation, only need to match taper sleeves with different diameters, the same pulley can be applied to different shaft diameters and increase products Versatility, allowing larger shaft diameter tolerance, groove shape can be equipped with V-belt and narrow V-belt, etc...
The tapered belt pulley is a new type of mechanical transmission coupling part commonly used in European and American countries. The 8 degree outer cone surface is tightly connected with the inner cone surface of the pulley, which greatly improves the centering accuracy of the transmission part.The size of the taper sleeve is a series standard design.The keyway of the inner hole is processed according to the ISO standard.Universal interchangeability is very good, suitable for various occasions. When the transmission part runs for a long time, the inner hole and the chain groove may be damaged. If it is a transmission part using this kind of taper sleeve, it only needs to be replaced when this happens. The cone sleeve of the same specification can be used again.Therefore, the service life of transmission parts is greatly improved, maintenance costs are reduced, and time is saved.
The taper sleeve is mainly divided into TB taper sleeve and QD taper sleeve. The holes where the taper sleeve and the pulley match are half-sided, and the two smooth holes on the taper sleeve and the two threaded holes on the pulley respectively form a complete Hole, a threaded hole on the taper sleeve and a light hole on the pulley form a complete hole.When assembling, put the two screws in the two threaded holes of the pulley. As the screws are continuously tightened in the threaded holes on the pulley, the thread will push the screws to the small end of the tapered hole on the pulley, and the tapered sleeve The two light holes are not completely processed, so that when the head of the screw presses against the bottom of the light hole, the force is transmitted to the taper sleeve, and the taper sleeve moves relative to the pulley toward the small end of the taper hole of the pulley. At this time, because of the taper, the taper sleeve keeps tightening the shaft, and the shaft reacts to the taper sleeve and then acts on the pulley.In this way, the pulley, taper sleeve and shaft are tightly assembled together.
On the contrary, when disassembling, use a screw withdrawing from the threaded hole of the pulley with a threaded hole on the taper sleeve. In the process of continuous tightening, the screw also moves toward the small end of the taper hole of the pulley. When the bottom of the pulley is smooth, the force is transmitted to the pulley. At this time, the pulley moves relative to the cone sleeve toward the small end of the pulley cone hole. In this way, the pulley and the cone sleeve are separated, and the cone sleeve is also lost from the pulley cone. The binding force of the hole, plus a little elasticity to restore its roundness, also separates from the shaft.
When the taper sleeve connects the pulley and the shaft together, an interference fit connection body is formed.The inner hole of the cone sleeve is connected with the shaft by a key, and the torque and force are transmitted through the key.Although there is no key connection between the cone sleeve and the pulley, there is a positive pressure on the joint surface, and the generated friction can transmit torque and force.