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Z3 Expansion coupling Tightening Connection Sleeve locking devices advantage:
Keyless locking devicesisa new type of advanced mechanical basic parts ,been widely used inworldwide to realize the transmission of load through friction of tightening 12.9 high-strength screws.Product Description
The mainfunctionoflocking devicesis to replace the joint function of the single key and the spline to realize the connection of the mechanical parts (such as gears, flywheels, pulleys, etc.) with the shaft to transmit the load.
locking devices have many unique advantages over the general interference joint and keyed joints:(1) Use of locking devices make the manufacture and installation of the main parts simple. The machining of the shaft and the hole in which locking device is mounted does not require high precision manufacturing tolerances like an interference fit. There is no need to heat, cool or pressurize the locking device, just tighten the bolts to the required torque. The hub can be easily adjusted to the desired position on the shaft. Locking devices can also be used to join parts with poor weldability.(2) Thelocking device has a long service life and high strength. It relies on the friction for transmission, and there is no key groove weakening on the joint member, and there is no relative movement, and no wear occurs during the work.(3) When thelocking device is overloaded, it will lose the coupling effect and protect the equipment from damage.(4) The locking devicecan bear multiple loads, and its structure can be made into various patterns. Depending on the size of the installed load, it is also possible to use multiple locking devices in series.(5)The locking device is easy to disassemble and has good interchangeability. Since thelocking devicecan combine the hubs with large matching gaps, the bolts can be loosen during disassembly, so that the joints can be easily disassembled. When the expansion is tight, the