Leakage rate detection mechanism of volute casing assembly body

Abstract

The invention discloses a leakage rate detection mechanism of a volute casing assembly body. The mechanism includes a bottom plate, the bottom plate is connected with a fixing base, the fixing base isfixedly connected with a positioning core, an orienting component is arranged on the fixing base, the center of the positioning core is provided with a through hole in the vertical direction, a pullrod can move up and down in the through hole, the top of the pull rod is connected with a pull rod head, the bottom plate is connected with an ejection plate, the ejection plate is connected with an upper press cover which can move up and down, the upper press cover is provided with a first air vent, the bottom plate is connected with a side press cover which can horizontally move, the side presscover is provided with a second air vent, and the ejection plate is provided with an ejection component used for preventing opening of a valve deck of the volute casing assembly body. The mechanism has the advantages that the structure is simple and easy to implement, and the manufacture cost is low, the leakage rate at the position of a gap between a valve rod and a lining can be detected, the leakage rate at the position of a gap between an exhaust hole and the surface of the valve deck can be detected as well, and the leakage rate detection requirement is thus met.

Description

technical field [0001] The invention relates to the field of turbochargers, in particular to a leakage detection mechanism of a volute casing assembly. Background technique [0002] At present, there are many cars that use a turbocharger structure engine. The turbocharger is actually a kind of air compression. It uses the inertial force of the exhaust gas discharged from the engine to drive the turbine, and the turbine drives the coaxial impeller. Sends air from the air filter duct to pressurize it into the cylinder. [0003] The volute assembly is one of the important parts of the turbocharger, such as figure 1 As shown, it is a structural schematic diagram of a volute assembly, which includes a volute 1, a valve cover 2, a bushing, a valve stem, and a crank 3. One end of the valve stem is connected to the valve cover 2, and the other end extends through the bushing. Connected with the crank 3, after the production and assembly of the volute assembly is completed, the lea...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to address the above problems and provide a volute assembly leakage detection mechanism to solve the problems of complex structure and high manufacturing cost of the existing volute assembly leakage detection mechanism, and the leakage of the existing volute assembly. The amount detection mechanism cannot complete the leakage detection at two positions

Images