Changing device for engine break-in test and clamping mechanism for exhaust tube of changing device for engine break-in test

Abstract

The invention relates to a changing device for engine break-in test and a clamping mechanism for an exhaust tube of the changing device for engine break in test. The clamping mechanism for the exhaust tube comprises a connection body, wherein a connection hole which vertically extends along the axial direction is formed in the connection body, a movable jaw and a fixed jaw which are distributed back and forth along the radial direction of the connection hole are arranged on the upper end of the connection body, the clamping mechanism further comprises a drive part which drives the movable jaw to move towards the fixed jaw along the longitudinal direction and is locked in place, grooves with opposite notches are respectively formed on the movable jaw and the fixed jaw, a connection body limiting surface which has an upward limiting direction and is limitedly matched with a lower end face of a corresponding exhaust tube flange, and the grooves respectively have a groove wall which is used for being in jack matching with the shoulder part of the upper end of the corresponding exhaust tube flange so as to commonly act with the connection body limiting surface to clamp and fix the corresponding exhaust tube flange. The provided clamping mechanism for the exhaust tube is simple in structure, is convenient to operate, and is used for quickly clamping the exhaust tube.

Description

technical field [0001] The invention relates to a replacement device for an engine running-in test and a clamping mechanism for an exhaust pipe thereof. Background technique [0002] After the engine is assembled, a running-in test is usually carried out so that it can withstand the proper load, reduce the amount of wear in the initial stage, prolong the service life of the engine, check and eliminate defects in the assembly, and make the engine parts Obtain a good fit in order to obtain good dynamic performance and mechanical performance. During the running-in test of the engine, it is necessary to be equipped with different types of flanges to connect with the exhaust pipe, and the connection structure between the existing exhaust pipe and the exhaust port of the engine is relatively complicated. For its specific structure, see a " Engine automation test overall bench", including the smoke exhaust device, the smoke exhaust device is composed of smoke exhaust seat, slide, ...

AI Technical Summary

Problems solved by technology

During the running-in test of the engine, it is necessary to be equipped with different types of flanges to connect with the exhaust pipe, and the connection structure between the existing exhaust pipe and the exhaust port of the engine is relatively complicated. For its specific structure, see a " Engine automation test overall bench", including the smoke exhaust device, the smoke exhaust device is composed of smoke exhaust seat, slide, exhaust pipe, handle, spring and connecting rod, the slide sleeve is set in the exhaust pipe, and the exhaust pipe is composed of exhaust pipe Supported by the smoke holder, the handle is connected to the sliding cylinder through the connecting rod, one end of the spring is connected to the exhaust pipe, and the other end is connected to the handle. The smoke exhaust device is connected to the exhaust port of the engine during the engine inspection process to detect various performances of the engine. , the handle, connecting rod and slider can realize the accurate docking with the exhaust port of the engine

The connection structure connecting the engine smoke outlet and the exhaust pipe is relatively complicated, and each connection process between the engine and the corresponding exhaust pipe will consume a lot of labor intensity and working time for the workers, which reduces the test of the engine running-in test. efficiency

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