An embedded detachable engine fixing structure and its assembly and disassembly method

Abstract

The invention relates to an embedded detachable engine fixing structure, which comprises a bolt 1, an engine 2, a test bed base 3, a nut 5, an anti-loose ring 6 and a detaching tool 19; the bolt 1 has bolt external threads 7, a first bolt polished rod 8, a second bolt polished rod 9 and a bolt annular groove 10; the nut 5 has a nut internal threaded hole 11, a first nut polished hole 14, a second nut polished hole 16, a nut transition annular groove 12, a nut assembling guide chamfer 13, a nut annular groove 15 and a detaching process hole 17; the anti-loose ring 6 is an elastic opening ring and has an anti-loose ring assembling guide chamfer 18, detaching tool raised columns 20 are uniformly distributed on the detaching tool 19 and extending ends of the detaching tool raised columns 20 are provided with raised column guide slopes 21. By the assembling of the anti-loose ring and the bolt, the assembling of the bolt and the engine and the test bed base and the assembling among a gasket, the nut and the bolt, the engine can be reliably fixed on the test bed base, and the engine fixing structure can be detached conveniently by using the detaching tool.

Description

technical field [0001] The invention belongs to the technical field of engine testing, and in particular relates to an embedded detachable engine fixing structure. Background technique [0002] In the performance test or durability assessment test of the diesel engine, it needs to be fixed on the engine test bench, and the bolt connection structure is usually used to fix the engine on the base of the test bench. However, during the test process of the engine, affected by the combustion process, etc., the fixed part of the engine and the test bench base will bear the effect of vibration load and impact load, resulting in the loosening of the bolts at the connection part of the engine and the test bench base. Once the bolt connection structure is loosened, it will cause the engine and the test bench base to fail, resulting in the failure of the engine to operate normally. [0003] In order to improve the reliability of the bolted connection structure, various anti-loosening m...

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