Thrust plate, crankshaft assembly and engine

Abstract

The invention discloses a thrust plate, a crankshaft assembly and an engine. The thrust plate comprises a thrust plate body, wherein an arc-shaped hollow groove is formed in the thrust plate body, andone or more rolling components are arranged in the hollow groove; and the rolling components are used for realizing rolling friction between the thrust plate and a crankshaft in the operation processof the crankshaft. The hollow groove is formed in the thrust plate body, and one or more rolling components are arranged in the hollow groove, so that the mode of friction between the thrust plate and the crankshaft is improved from sliding friction to rolling friction, the wear rate of the thrust plate is greatly reduced, and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a thrust plate, a crankshaft assembly and an engine. Background technique [0002] In the engine manufacturing industry, especially the assembly of engine internal parts will directly affect the performance and quality of the whole machine. When assembling the thrust plate of the crankshaft thrust gear, the direction of the thrust plate is easy to be assembled in the opposite direction. When the thrust plate is assembled upside down, the oil passage groove of the thrust plate faces the main bearing housing, and the reserved oil passage with the rotating crank surface is missing, so that the oil film cannot be established between the thrust plate and the rotating crank surface. Causes poor cooling and lubrication, which leads to failures such as main bearing bushing. [0003] The current mainstream solutions, one is to control the problem of misassembly through on-site managemen...

AI Technical Summary

Problems solved by technology

When the thrust plate is assembled upside down, the oil passage groove of the thrust plate faces the main bearing housing, and the reserved oil passage with the rotating crank surface is missing, so that the oil film cannot be established between the thrust plate and the rotating crank surface

Cause poor cooling and lubrication, resulting in faults such as main bearing bushing

[0003] The current mainstream solutions, one is to control the problem of misassembly through on-site management and technological measures, and the other is to add a limit structure so that the thrust plate itself has directionality, and it cannot be assembled in the reverse direction.

Among them, process control can only reduce the probability of wrong installation, but cannot completely eliminate the occurrence of problems

Once there is a wrong installation, the bearing pad will have a great impact, and may even cause life safety; although adding a limit structure can prevent the wrong installation problem, it can only be found after the assembly error, and the problem must be found by manual assembly, and this method Unable to solve the problem of thrust plate wear

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