A New Type Assembled Fan Coupling

Abstract

The invention provides a novel assembled type fan coupler which comprises an outer flange and an inner flange. The outer flange is connected with an engine. The inner flange is connected with a fan. The outer flange and the inner flange are each provided with an upper spigot and a lower spigot. The outer flange and the inner flange are sleeved together and form a cavity through the upper spigots and the lower spigots. A rubber damping block is arranged in the cavity in a pressed mode. The outer flange, the inner flange and an end cover are connected into a whole through bolts and achieve press fitting of the rubber damping block. The cavity formed by the outer flange and the inner flange is a conical cavity. The taper of the conical cavity faces towards the end cover, and correspondingly, the taper of the rubber damping block is in the same direction. The rubber damping block highly presets compression amount. The coaxiality and the accuracy of depth of parallelism of the product can be ensured, the damping performance in circumferential direction, radial direction, axial direction and the like of the coupler is achieved, and therefore the system stability and reliability are improved.

Description

technical field [0001] The invention relates to the technical field of fan couplings of automobile cooling systems, and particularly proposes a novel assembled fan coupling for connecting an engine transmission shaft and a fan. Background technique [0002] Most of the fan couplings in the current engine cooling system are integral, and there are basically two states. [0003] One is that the inner and outer flanges are completely filled and connected with rubber vulcanization, and the rubber has the effect of damping vibration in the circumference, radial direction and axial direction, which has poor coaxiality of the assembly positioning circle, large dynamic unbalance, and large fan deflection. , the disadvantages of high noise and easy failure during operation; the other is that the inner and outer flanges are positioned with rigid spigots and filled with rubber vulcanization. The radial direction is completely rigid spigot connection, which sacrifices the radial vibrat...

AI Technical Summary

Problems solved by technology

[0003] One is that the inner and outer flanges are completely filled and connected with rubber vulcanization, and the rubber has the effect of damping vibration in the circumference, radial direction and axial direction, which has poor coaxiality of the assembly positioning circle, large dynamic unbalance, and large fan deflection. , the disadvantages of high noise and easy failure during operation; the other is that the inner and outer flanges are positioned with rigid spigots and filled with rubber vulcanization. The radial direction is completely rigid spigot connection, which sacrifices the radial vibration damping performance of the assembly. When the impact load is encountered, the vibration damping effect is not good, and it is easy to cause damage to related parts

Moreover, both structures have problems such as complicated production process and low production efficiency.

[0004] At the same time, the vulcanization of large-volume fan couplings requires a large mold cost and manufacturing pressure. The mold is large and its accuracy cannot be controlled and guaranteed.

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