Hydraulic wrench extension

摘要

A hydraulic wrench extension includes an input head connected to an output head via a fluid conduit. The input head is adapted to receive an input torque and convert the input torque into hydraulic fluid pressure. The fluid conduit is adapted to communicate the pressurized hydraulic fluid from the input head to the output head. The output head is adapted to convert the hydraulic fluid pressure into torque for applying to a fastener. The hydraulic wrench extension may comprise an articulating linkage adapted to house the fluid conduit and provide a configurable orientation of the wrench extension for traversing obstacles and accessing difficult-to-reach fasteners.

主权项

1. A hydraulic wrench extension, comprising:
a first housing adapted to contain one or more input head components, said input head components comprising:
a rotatable torque input for connecting a source of torque to the first housing, the rotatable torque input comprising a first cam extending radially outwardly from a center thereof; anda first piston connected to the rotatable torque input at the first cam, said first piston at least partially engaged with a first bore within the first housing, said first bore coupled to a first fluid channel extending from said first bore to an outlet port of the first housing; a second housing adapted to contain one or more output head components, said output head components comprising:
a rotatable torque output for providing an output torque, the rotatable torque output comprising a second cam extending radially outwardly from a center thereof; anda second piston connected to the rotatable torque output at the second cam, said second piston at least partially engaged with a second bore within the second housing, said second bore coupled to a second fluid channel extending from said second bore to an inlet port of the second housing; a hydraulic fluid conduit extending between said outlet port of said first housing and said inlet port of said second housing forming a fluid communication between said first bore and said second bore; wherein said first housing and input components therein are adapted to receive an input torque and convert said input torque into hydraulic fluid pressure; wherein said hydraulic fluid conduit is adapted to communicate said hydraulic fluid pressure from said first bore to said second bore; and wherein said second housing and output head components are adapted to convert said hydraulic fluid pressure into torque for rotating said rotatable torque output.