초록 ▼

Reliability problems in a torque monitor are reduced in a simplified construction including a housing (30) journalling first and second coaxial shafts (34), (42). The second shaft (42) is mounted for axial movement within the housing (30), and a sleeve (58) has a threaded connection (56), (60) to th

Reliability problems in a torque monitor are reduced in a simplified construction including a housing (30) journalling first and second coaxial shafts (34), (42). The second shaft (42) is mounted for axial movement within the housing (30), and a sleeve (58) has a threaded connection (56), (60) to the second shaft (42), and a spline connection (36), (62) to the first shaft (34). A switch (82), (84), is mounted in the housing (30) and a switch actuator (80) is mounted for movement towards and away from the switch (82), (84) to change the condition of the same. A shoulder (68) on the second shaft (42) may engage and drive the switch actuator (80) upon axial movement of the second shaft (42) in one direction, while a shoulder (96), (102) on the sleeve (58) may engage and drive the switch actuator (80) upon axial movement of the sleeve (58) in the one direction and relative to the other shaft (34) to provide an indication of relative movement between the shafts (34) and (42).

대표청구항 ▼

A torque monitor comprising: a housing; a hollow shaft journalled for rotation in said housing and having an internal, axial spline; a sleeve having an external spline disposed within said hollow shaft for axial movement relative thereto with said splines engaged to prevent relative rotation, said s

A torque monitor comprising: a housing; a hollow shaft journalled for rotation in said housing and having an internal, axial spline; a sleeve having an external spline disposed within said hollow shaft for axial movement relative thereto with said splines engaged to prevent relative rotation, said sleeve having an internal thread; an additional shaft having an external thread disposed within and threaded to said sleeve and being journalled for rotation within said housing; an actuator mounted on said additional shaft for axial movement thereon; a shoulder on said additional shaft for driving said actuator axially in one direction upon axial movement of said additional shaft in said one direction and engagement of said shoulder with said actuator; a switch mounted in the path of movement of said actuator so as to be trippable thereby; a shoulder on said sleeve radially outward of said shoulder on said additional shaft for driving said actuator axially upon axial movement of said sleeve in said one direction and engagement of said sleeve shoulder with said actuator; a first set of teeth on said sleeve shoulder and said actuator and engagable to prevent relative rotation between said sleeve and said additional shaft upon predetermined movement of said sleeve in said one direction; a second set of teeth on said sleeve and said additional shaft and engagable to prevent relative rotation between said sleeve and said additional shaft upon predetermined movement of said additional shaft in said one direction; a plunger carried by said additional shaft; a spring biasing said plunger in the radial direction; and first and second axially spaced slots in said sleeve and respectively located to receive said plunger upon engagement of the teeth of said first and second sets.