Bolt installation and tensioning system

A tool cart for assembling and disassembling a nuclear vessel, comprising:

• a platform configured to travel around an outside perimeter of the nuclear vessel;
• a tool tower extending up from the platform, wherein the tool tower includes
• a tool base;
• a carriage moving vertically up and down the tool base;
• and
• a gear assembly positioned to rotate the tool base and carriage about a vertical axis;
• and
• a tool assembly supported by the carriage, wherein the tool assembly is configured to rotate about the vertical axis to install bolts on the nuclear vessel and remove the bolts from the nuclear vessel.

A tool cart for assembling and disassembling a nuclear vessel, comprising:

• a platform configured to travel around an outside perimeter of the nuclear vessel;
• a tool tower extending up from the platform;
• a tool assembly attached to the tool tower configured to rotate about a vertical axis to install bolts on the nuclear vessel and remove the bolts from the nuclear vessel, wherein the tool assembly includes
• an install head;
• a drive bit located in the install head;
• a drive bit cylinder extending the drive bit vertically up into a bottom hole formed in each of the bolts;
• and
• a bolt clip positioned to retain one of the bolts and extend out and release the retained bolt when the drive bit cylinder extends the drive bit up into the bottom bolt hole.

A tool tower for attaching and detaching a bolt to a nuclear vessel, comprising:

• a base rotatably attached to a platform;
• a carriage extending around the base;
• a slide plate attached to the carriage;
• a tool head attached to the slide plate for attaching and detaching the bolt on the nuclear vessel;
• a first drive mechanism coupled to the base for rotating the tool head along a circular path about a vertical axis;
• a second drive mechanism coupled to the carriage for moving the tool head vertically up and down on the base;
• and
• a third drive mechanism coupled to the slide plate for moving the tool head laterally relative to the base.

A bolt installation and removal system for assembling and disassembling a nuclear vessel, comprising:

• a platform including a stand for supporting the nuclear vessel;
• a track that extends around an outside perimeter of the platform;
• multiple tool carts including wheels that roll on the track;
• tool towers located on the carts;
• and
• tool assemblies attached to the tool towers configured to install and remove bolts on the nuclear reactor vessel.