公开(公告)号：WO2021003498A1

公开(公告)日：2021-01-07

申请号：PCT/US2020/070227

申请日：2020-07-02

Applicant: NABHOLZ CONSTRUCTION CORPORATION

Inventor： POTTER, Mark, Raymond ,  SCHUMACHER, Stephen, Harold

IPC: F16H25/20 ,  B66F7/02 ,  B66F7/14 ,  B66F7/20 ,  F16H25/12 ,  F16H25/24 ,  F16H57/04

Abstract: A lifting column (124) can provide optimized performance with a nut gap system that efficiently and precisely measures a nut gap (174) during lifting operations. The nut gap system can have a rotating core (162) onto which a nut (172) and traveler (168) are positioned. The nut (172) can be separated from the traveler (168) by a nut gap (174) that is monitored by at least one sensor (176) that continuously extends through the nut (172) to access the nut gap (174).

公开(公告)号：WO2021003329A1

公开(公告)日：2021-01-07

申请号：PCT/US2020/040592

申请日：2020-07-02

Applicant: NABHOLZ CONSTRUCTION CORPORATION

Inventor： POTTER, Mark, Raymond ,  SCHUMACHER, Stephen, Harold

IPC: B66F7/02 ,  B61D15/00 ,  B61K13/00 ,  B66B1/00 ,  B66F3/46 ,  B66F7/00 ,  B66F7/14

Abstract: A drop table can provide optimized lifting operations by employing motor feedback to generate and adapt a lifting strategy that controls lifting parameters. A lifting module (200) may be connected to a first motor (108) and consist of a lifting controller (112). The first motor (108) can be mechanically coupled to a first lifting column (124) by a first transmission and to a second lifting column (124) by a second transmission. A service component can be lowered with the first and second lifting columns (124) by activating the first motor (108) that provides motor feedback. A lifting strategy can be generated in response to the motor feedback and subsequently executed to move the service component to a servicing position (138).