Oil pan oil drain bolt assembly structure

Abstract

In order to solve the technical problems that in the prior art, an oil drain bolt is poor in mounting and dismounting convenience, and the mounted oil drain bolt is prone to falling off under the frequent vibration excitation effect, the invention provides an oil pan oil drain bolt assembly structure. The oil pan oil drain bolt assembly structure comprises an oil drain bolt, an oil pan, a sealingelement, a sealing groove and a limiting groove, wherein the oil drain bolt comprises a positioning part and a mounting part, and the sealing groove and the limiting groove are formed in the peripheral surface of the mounting part; a mounting hole is formed in the oil pan, a limiting boss is arranged on the hole wall of the mounting hole, and the limiting boss is matched with the limiting groove;the sealing element is matched with the sealing groove; and the sealing groove and the limiting groove are arranged in a spaced mode along the axial direction of the mounting part, the limiting grooveis located in the side, away from the positioning part, of the sealing groove, and the end, away from the positioning part, of the limiting groove communicates with the end, away from the positioningpart, of the mounting part. The oil pan oil drain bolt assembly structure has the following beneficial effects that the oil drain bolt is relatively high in mounting and dismounting convenience; andthe risk that the oil drain bolt falls off from the oil pan under the action of frequent vibration excitation can be reduced while the excellent sealing performance is achieved.

Description

technical field [0001] The invention relates to the technical field of lubricating systems, in particular to an oil drain bolt assembly structure of an oil pan. Background technique [0002] The oil pan is the lower half of the crankcase, also known as the lower crankcase. Its function is to close the crankcase as the shell of the oil storage tank, prevent impurities from entering, collect and store the lubricating oil flowing back from the friction surfaces of the diesel engine, dissipate part of the heat, and prevent the lubricating oil from oxidizing. The oil pan is mostly stamped from thin steel plates, and the ones with more complex shapes are usually cast iron or aluminum alloy. It is equipped with an oil stabilizing baffle inside to avoid the shock and splash of the oil surface caused by the bumping of the diesel engine, which is beneficial to the precipitation of lubricating oil impurities. There is an oil dipstick on the side to check the oil level. In addition, a...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the technical problems of poor installation and disassembly of the oil drain bolt in the prior art, and the technical problems that the installed oil drain bolt is easy to fall off under frequent vibration excitation, the present invention provides an oil pan oil drain bolt assembly. Integrative structure, the oil drain bolt is easy to install and disassemble, which can reduce the risk of it falling off from the oil pan under the action of frequent vibration excitation while achieving excellent sealing performance

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