Safety coupling with intelligence
Torque limiters in the classic sense automatically re-engage, which also means very high wear at high speeds. To counteract wear, therefore, disengaging versions are used. However, these have the major disadvantage that the systems have to be positioned at standstill and the clutches have to be operated manually in order to re-engage. In many applications, such torque limiters are not freely accessible and manual re-engagement is time-consuming and labor-intensive. For reasons of space or lack of accessibility due to the installation situation or formwork, it is simply impossible to use a classic torque limiter.
Inspired by the demand of a customer who saw no possibility to use a classic torque limiter, HA-CO has further developed its portfolio and combined the advantages of automatic re-engagement with the minimum wear of a disengaging torque limiter. Re-engagement takes place automatically by reversing the direction of rotation even at low speed. Downtimes can thus be effectively reduced to a minimum! Due to our intelligent mechanics, this can usually be realized in the same installation space, which we also require for our standard series.
These safety clutches can be designed for clockwise (RL) or counterclockwise (LL) rotation, depending on customer requirements. In the respective version (RL or LL), the opposite direction of rotation forms a standard re-engaging safety coupling.
This new development can be applied to all existing torque limiters. Our modular design principle offers a wide range of flexible options. For example, this design can be implemented with misalignment compensation elements in the form of metal bellows or elastomer couplings for direct drives as well as for applications with indirect drives (such as gear or chain wheels).
Especially in today's world, where automation and dynamization are becoming more and more important and components are exposed to higher and higher loads, the idea of a modern drive is not realized with a conventional disengaging torque limiter, which has to be engaged by hand. High costs and long repair times are the result. An appropriate measure against such failures should therefore be a high priority nowadays. The areas of application include all demanding drives in mechanical engineering, starting with highly dynamic servo drives of a machine tool, the overload protection of printing machines, conveyor systems to power generation, automatic door systems or switch setting for rail vehicles.
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