Tool coupler with sliding coupling members for top drive

A top drive system comprising:

• a drive unit comprising:
• a drive stem;
• a drive gear profile disposed on an exterior surface of the drive stem;
• a plurality of sliding coupling members disposed on an exterior of the drive stem;
• a retainer sleeve to retain the plurality of sliding coupling members on the drive stem, the retainer sleeve disposed around the exterior of the drive stem and movable relative to the drive stem;
• a first bracket for securing a first portion of a coupling;
• and
• a torque profile on the drive stem;
• and
• a tool adapter comprising:
• a tool stem having a tool stem sleeve, wherein the tool stem sleeve;
• a plurality of coupling recesses on an interior of the tool stem sleeve and engagable with the sliding coupling members;
• a second bracket for securing a second portion of the coupling, wherein the first portion is configured to engage the second portion of the coupling;
• and
• a sleeve torque profile positioned at a free end of the sleeve to engage with the torque profile.