Screw-cutting shear
AssigneeZhejiang Prulde Electric Appliance Co., Ltd.
InventorWeiming YANG
Life of this patent
Estimating the term…
Abstract
A screw-cutting shear includes a shearing assembly including a shear base, a stationary blade, a shear lever, a moving blade, a reset spring, a cam, and a roller; and a driving assembly including an electric motor driving the cam to rotate and a speed reducer, a cam surface and a roller outer circular surface interacting to drive the shear lever to swing to drive the moving blade and the stationary blade to be fitted to shear off a screw, the cam surface and the roller outer circular surface being conical surfaces fitted with each other at an angle of X° so that when the cam is rotating, an axial force component is applied against the roller; under the action of the force, the shear lever moves axially along the bolt, so that the moving and stationary blades press against a sheared end face.
Claims10
A screw-cutting shear, comprising a shearing assembly and a driving assembly, wherein the shearing assembly comprises a shear base, a stationary blade secured to the shear base, a shear lever hinged to the shear base, a moving blade secured to the shear lever, a reset spring connected to the shear lever, a cam rotatably connected to the shear base, and a roller rotatably connected to the shear lever;
- the driving assembly comprises an electric motor driving the cam to rotate and a speed reducer, a cam surface and a roller outer circular surface interacting to drive the shear lever to swing to thereby drive the moving blade and the stationary blade to be fitted to shear off a screw, the cam surface and the roller outer circular surface being conical surfaces fitted with each other at an angle of X° so that when the cam is rotating, an axial force component is applied against the roller;
- the driving assembly further comprises a stationary housing, a motor bracket being secured to a rear portion of the stationary housing, the electric motor being mounted on the motor bracket, the speed reducer being mounted to the stationary housing.
Dependencies are inferred from the claim text.