Mistake-proofing assembling method for no-twist ring of engine piston
An assembly method and a twist-free technology, applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve problems such as increased engine oil consumption, increased maintenance costs, and delayed user time.
Active Publication Date: 2015-07-22
GUANGXI YUCHAI MASCH CO LTD
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Problems solved by technology
[0005] However, for the second non-twisted ring with no obvious structural features (micro-cone ring, that is, the outer circle slope is about 1°, the "TOP" mark is located on the small ring surface, such as figure 1 (shown) can’t be checked by the naked eye, and the second ring is installed upside down (the big circular surface is on top), which will cause the oil to be pumped back to the top of the piston, which will cause engine oil consumption to increase and malfunction
It must be solved by disassembling the machine and checking the wear marks to confirm and replace the new piston ring, which increases the maintenance cost and delays the user's time
Method used
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[0016] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.
[0017] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.
[0018] Piston Ring (Piston Ring) is a metal ring used to embed the inside of the piston groove. The piston ring is a metal elastic ring with a large outward expansion deformation, which is assembled into the section and its corresponding annular groove. The reciprocating and rotating piston rings rely on the pressure difference of gas or liquid to form a seal between the outer circular surface of the ring and the cylinder a...
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The invention discloses a mistake-proofing assembling method for a no-twist ring of an engine piston. The mistake-proofing assembling method for the no-twist ring includes the following steps that firstly, the no-twist ring to be identified is installed in an air cylinder sleeve in the mode that an identification faces upwards; secondly, a plug gauge is inserted along the inner wall of the air cylinder sleeve from top to bottom in a trying mode, if the plug gauge can be inserted between the no-twist ring and the inner wall of the air cylinder sleeve, it is indicated that a top mark on a small circular ring face is correct, and if the plug gauge can not be inserted between the no-twist ring and the inner wall of the air cylinder sleeve, it is indicated that a top mark on a large circular ring face is wrong. According to the mistake-proofing assembling method for the no-twist ring of the engine piston, the plug gauge with an appropriate thickness is adopted for determining whether a mark of the second no-twist ring is matched with a micro conical surface structure, so that the faults that the second no-twist ring is installed reversely (the large circular ring face is upward), consequently, engine oil is reversely pumped to the piston top, and engine oil consumption of an engine is increased are avoided.
Description
technical field [0001] The invention relates to the field of engine assembly, in particular to an anti-error assembly method for a twist-free ring of an engine piston. Background technique [0002] Enterprise standards, piston ring engineering specifications, product instruction manuals, drawings and other technical documents all have a common requirement for the assembly of piston rings, that is, the logo on the gas ring must be installed facing upwards and must not be installed backwards. It can be seen how important it is to assemble the ring correctly or not. There are many types of gas ring structures, and gas rings with different structures have a great impact on engine performance, emissions, and engine oil consumption. Therefore, it is required that the direction of the gas ring during assembly (that is, on the logo) is absolutely not allowed to be reversed. The enterprise standard stipulates that Yuchai trademark or manufacturer code is marked on the side of the fi...
Claims
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IPC IPC(8): B23P19/10
CPCB23P11/00B23P19/10
Inventor 韦明全杨仕明李宁梁伟志
Owner GUANGXI YUCHAI MASCH CO LTD