Bolt selection and mechanism characteristics of universal coupling

Gear couplings are matched by internal and external teeth to transmit motion. Therefore, the height of the internal and external teeth depends on the torque transmitted by the coupling. Therefore, the coupling factory designers should try their best to make the coupling when designing. Shaft internal and external tooth designL, The service life of the coupling has been reached.The height of the inner gear ring will affect the amount of expansion and contraction of the coupling. Therefore, the height of the inner tooth is generally thickened and heightened by the designer, so that one side of the inner tooth is high, the other side is low, and the outer tooth remains unchanged.In this way, the designer can play to the coupling, but this will bring constant change to the operator.

The height of the inner gear ring of the coupling cannot be changed arbitrarily, mainly because the stroke of the gear shaper is limited, and the height of the inner gear ring is too high, which will cause the bed to dry out, and it is processed by changing to a larger gear shaper.Affects work efficiency,Increased cost price.The designers of Sheng Fu Shi Coupling Factory gave a clear standard for this. The height of the inner ring gear of the coupling should not be higher than 80, and it is only limited to gear couplings with an outer diameter of 300 or less.The inner gear ring with an outer diameter of 300 or more will have a gland. In this case, the gland can be removed first and processed by wire cutting to replace the operation of the gear shaper.

The universal coupling uses bolts and self-locking nuts to connect the flanges at both ends to other mechanical components. The transfer torque is transmitted through the friction between the flange end key and the flange.The bolts can only be inserted from the flange side that matches the coupling. The nuts are tightened from the flange side of the universal coupling. The mechanical properties of the bolts meet the 3098.1 level in GB10.9, and the mechanical properties of the nuts should meet GB3098.4. Level 10 regulations in XNUMX.In this way, the coupling can be well linked.

Universal coupling is a mechanical part used to connect two shafts (active shaft and driven shaft) in different mechanisms to make them rotate together to transmit torque.In high-speed and heavy-duty power transmission, some couplings also have the function of buffering, damping and improving the dynamic performance of the shafting.The coupling is composed of two halves, which are respectively connected with the driving shaft and the driven shaft.The general power machine is mostly connected with the working machine by means of a coupling.