The invention discloses a gas distribution mechanism double friction pair composite
simulation experiment
system. The gas distribution mechanism double friction pair composite
simulation experiment
system comprises a motor, a belt, a fixed shaft base, a
camshaft, a
cam, a roller, a
tappet body, a valve push rod, a valve, a
cylinder head, a
valve seat ring and a heating coil. The
cam is in
interference fit with the
camshaft, the roller is rotatably connected with the upper end of the
tappet body through a pin, the upper end of the valve push rod is connected with the
tappet body, the lower endof the valve push rod is connected with the valve, and the valve push rod is sleeved by a valve spring. The
cam and the roller form a higher pair friction pair under the action of the elastic
restoring force of the valve spring, the
cylinder head is provided with a
valve guide pipe, the valve push rod traverses the
valve guide pipe, the
valve seat ring is arranged on the lower end of the
valve guide pipe, the valve and the
valve seat ring form an
impact wear
kinematic pair under the action of the elastic
restoring force of the valve spring, the heating coil is arranged in the
cylinder head under the valve, and wear tests of two friction pairs are achieved at the same time. The gas distribution mechanism double friction pair composite
simulation experiment
system is stable and reliable in structure and high in efficiency, simulation approaches actual working conditions, and the experiment data is powerful and reliable.