Main bearing seat of engine

Abstract

The invention aims to provide a main bearing seat of an engine with high strength. The main bearing seat of the engine comprises an upper seat body and a lower seat body, wherein the bottom center of the upper seat body is provided with a first semicircular bearing hole, and the upper seat body is provided with bolt mounting holes at two sides of the first bearing hole; the top center of the lower seat body is provided with a second semicircular bearing hole, the lower seat body is provided with bolt mounting holes at two sides of the second bearing hole, and the upper seat body is connected with the lower seat body through bolts; the first bearing hole is in circular cambered surface transition with the cambered surface of the upper seat body; and fan-shaped arc surface reinforcing bars are arranged between the second bearing hole and the bottom of the lower seat body. By arranging the reinforcing bars of multiple structures, the strength of the whole main bearing seat of the engine can be effectively improved, and the using requirement of the engine is met; and meanwhile, the main bearing seat of the engine has assembly positioning function and is convenient to install.

Description

technical field [0001] The invention belongs to the technical field of engine manufacturing, and in particular relates to an engine main bearing seat. Background technique [0002] As the requirements of fuel consumption regulations and emission regulations become more and more stringent, in order to meet and achieve these requirements, the only way to greatly increase the power per liter and burst pressure of the engine is to increase the strength of the internal components of the engine. In order to achieve This strength requirement generally makes the parts very thick, which not only reduces the specific mass power and torque of the engine, but also reduces the specific mass fuel consumption of the engine. Therefore, structural strength design optimization should be carried out as much as possible to reduce the weight of the engine, improve the overall power and economy of the engine, and optimize the strength of the engine. [0003] The main bearing seat is the main lo...

AI Technical Summary

Problems solved by technology

[0003] The main bearing seat is the main load-bearing part of the engine cylinder system. The maximum explosion pressure of the engine mainly acts on the main bearing seat through the crank connecting rod mechanism. Therefore, the strength and structural design of the main bearing seat affect the normal operation of the engine. If the strength is insufficient, It will cause the engine main bush to work abnormally, the crankshaft of the engine pulley will be locked and the engine will be scrapped

Images