GrabCAD 模型信息
Adjustable Ratchet Wrench · 模型 26968
I am currently a student at The University of Alabama in Huntsville and I designed the adjustable ratchet wrench (ARW), a redesign and combination of a ratchet and adjustable wrench. Ratchets and adjustable wrenches are both common tools used to tighten or loosen nuts and bolts. Both have unique advantages and disadvantages associated with them. Primary advantages and disadvantages of ratchets and adjustable wrenches: - Ratchets allow the quick tightening or loosing of bolts since the ratchet can be left on the bolt and simply rotated back and forth in order to tighten or loosen the bolt. - Ratchets unfortunately require a different socket for each unique size of bolt they are to be used on. This includes unique sets of sockets for metric and standard sizes. - Adjustable wrenches are slow and tedious to use since the wrench must be removed from the bolt each time the bolt is to be rotated. Also, with an open end, it is easy for adjustable wrenches to slip off bolts. - Adjustable wrenches can be used on any size bolt within their given range. They are also able to fit both metric and standard bolt sizes. The ARW combines the advantages of the ratchet and adjustable wrench and solves each of the respective disadvantages. The ARW features a ratchet with an adjustable "aperture" that can be sized to fit any size of bolt within the range of 17 to 49 mm (~5/8" to 1-7/8"). Therefore, the ARW can be used to quickly tighten/loosen any size of bolt without the addition of unique sockets or the risk of slipping off the bolt. The ARW is 3D printed in only two pieces, the handle and head, and both parts can be printed inside the required bounds of 120.65 x 120.65 x 120.65 mm (see picture). The handle simply friction fits onto the head via a dovetail joint and the head contains both the ratchet and adjustable aperture. The head is a printed assembly that consists of seven unique parts: the outer frame, ratcheting ring, aperture ring, pivot arms, adjustable jaws, worm gear, and ratcheting paw. The outer frame (colored tan in the CAD rendering) connects the head to the handle and holds both the ratcheting ring (colored blue in the CAD rendering) and ratcheting paw (black colored part in the handle of the CAD rendering) in place. The ratcheting ring gives the ARW the ability to operate as a ratchet as well as holds the aperture ring (colored green in the CAD rendering) and pivot arms (colored black in the CAD rendering) in place. The aperture ring rotates inside the ...
- 格式
- STEP / IGES、STL、Rendering、Solid Edge、Other
- 分类
- 3D printing、Hobby、Tools
- 标签
- extremeredesignengineeringpost2017
- 数据更新
- 2026-08-06T15:15:35Z
