throw a (monkey) wrench in the works

wrench | American Dictionary

wrench
verb[ T ]
us/rentʃ/

wrenchverb[T] (TWIST)

to pull and twist something suddenly or violently away from a fixed position:
The ball was wrenched from his hands by another player.
If you wrench part of your body, such as your arm or knee, you twist it badly and injure it:
He wrenched his back while digging in the garden.
wrench
noun[ C ]
us/rentʃ/

wrenchnoun[C] (TOOL)

a tool for holding and turning objects:
an adjustable wrench

Examples of wrench

wrench
Both of the internal vertices happen to be coincident with the origin of the wrench space.
One notices that each wrench component has a corresponding maximum value within specific and proper configurations.
Such a state can be easily maintained, provided the imposed wrenches at the support foot, resulting from link motions, are summed up to zero.
But even those who approve of the effects (better treatment of the workers) do not conclude that the wrench has a hidden function.
They demanded that tory history should be examined with sensitivity to its context and not wrenched into a blueprint for liberal measures in the present.
The wrench capabilities of the three manipulators are evaluated throughout the workspace.
Wrench capabilities represent the maximum forces and moments that can be applied or sustained by the manipulator.
The extent to which deafness limits well-being is uncertain (though of course the experience of losing one's hearing is a wrenching one).
The wrench capability analysis of a manipulator depends on its design, posture, and actuator torque capabilities.
The wrench associated with the third joint will be reciprocal to the first two joints (revolute joints) and to the spherical joint.
The volume defined by either the ellipsoid or the polytope represents feasible twists or wrenches.
This is a particular wrench polytope caused by the location of the manipulator.
A geometrical characteristic of these wrenches is that they are of zero pitch.
A pure force is a wrench of zero pitch and a pure moment is a wrench of infinite pitch.
Such a wrench will, in general, produce a six dimensional deflection in a compliant link.
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