A device capable of automatically detecting the airtightness of an exhaust manifold and its application method

Abstract

The invention provides a piece of equipment capable of automatically detecting the air tightness of exhaust manifolds and a using method thereof. The equipment includes a detection vehicle, a starterand an alarm. Multiple longitudinal and horizontal slide ways are arranged on three sides of the detection vehicle. Multiple clamping devices and sealing devices with claws extend from the inside of the longitudinal and horizontal slide ways. The clamping devices and the sealing devices are connected with a power device. The tail of the power device penetrates the longitudinal and horizontal slideways, and the power device slides on the longitudinal and horizontal slide ways. The detection vehicle is provided with an automatic water injection pipe and an automatic gas transmission pipe. The starter and the alarm are arranged outside the detection vehicle, and are connected with a control system through a sensor. The clamping devices are further provided with stepper motors. The air tightness of exhaust manifolds is detected through water seepage under high pressure, and adjustment can be made automatically according to different detected manifolds. The detection effect is visual and obvious. The equipment is suitable for various kinds of automobile exhaust manifolds.

Description

technical field [0001] The invention belongs to the technical field of auto parts, and relates to a device capable of automatically detecting the airtightness of an exhaust manifold and a use method thereof. Background technique [0002] The exhaust manifold is connected to the cylinder block of the automobile engine, and the exhaust gas discharged from each cylinder is collected and introduced into the exhaust main pipe, with a conduit with branch lines. At present, the common practice of various engine manufacturers is to package the three-way catalytic converter used to purify the exhaust gas in the exhaust manifold. If the airtightness of the exhaust manifold is not good, the exhaust gas will not only pollute the car body, but also reduce the exhaust gas of the vehicle. System life, more seriously, will cause pollution to the atmospheric environment. After the finished exhaust manifold is completed, it needs to pass the air tightness test. In the existing technology, th...

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Problems solved by technology

However, the former has the risk of radiation injury and requires higher professional quality of operators; the latter is affected by the fixed position and number of sealing devices, and a single device can generally only test the airtightness of exhaust manifolds of a series of cylinders. The flexibility is poor, and the specific leakage point cannot be accurately judged, which affects the use effect

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