The Talon Lockjaw locking system for Ground Engaging Tools (GET) is very simple in its application and function while the design specifics are quite complex. This page will focus on the Lockjaw system application and function while providing some insight in to the design. A Point and Adaptor system will be used as an example but the fundamental function and application of the system is the same for Surface and Underground Lip Shrouds.
The design intent of the Talon Lockjaw product was to develop a locking system that would meet or exceed the following key features:
- Re-tensionable lock
- Active lock disengagement
- Adaptor Nose strength exceeding major competitor products
- Lock contained within the wear component
The system contains the basic components common to all Point and Adaptor GET systems.
Key design features that can be immediately identified in the system are:
The Adaptor nose has been designed to be comparable in size yet 20% stronger than key competitor products. This enables the Lockjaw system to be a high strength product that retains good penetration properties. The Lockjaw system achieves this by eliminating the need for any significant cut outs from the nose in high stress areas. The lock only requires a shallow cavity in the side of the nose that is supported by the remaining structure of the nose body surrounding it.
The Lockjaw comes delivered already assembled in the wear component. This provides many advantages the two key benefits being:
- No inventory of expensive Locks or Pins required
- Easy fitment and removal of Wear items
Although the lock can be removed and replaced if required. It is not recommended to do so, as the system is carefully assembled, secured with high strength thread locking compound and QC checked from factory.
Exploded View of the lock assembly in a Lockjaw Point.
The lock functions through the application of spiral surfaces on the Lock against the Lock bearing surfaces on the Adaptor. The spirals are rotated around the axis of a cylinder at an angle to the locking plane. This enables the spirals to not only drive against the bearing surfaces but also move in and out of the cavity. Either preventing or allowing the wear member to be removed.