Engineering machinery engine energy-saving cooling fan

Abstract

The invention belongs to cooling equipment, in particular relates to an engineering machinery engine energy-saving cooling fan, comprising a pedestal (23), a temperature driving part support (24), a shaft bracket (25) and an engine (1); wherein a belt axle (5) is arranged above the shaft bracket (25) at the upper left end of the pedestal (23) by virtue of a bearing (4), the left end of the belt axle (5) is provided with a belt pulley (3), the right end of the belt pulley (3) is welded and fixed with a hub (6), the opening of the hub (6) is fixed with a baffle (12) provided with a center hole, a plurality of blade shafts (8) are arranged on the circumference wall of the hub (6) in radial symmetry, a blade (7) is fixed on the blade shaft (8) on the outer wall of the hub (6), a plurality of bevel pinions (9) are fixed on the blade shaft (8) on the inner wall of the hub (6), and a plurality of bevel pinions (9) are meshed and connected with bevel gears (10). Overall structure is simple, working efficiency is high, the service life of engine is prolonged, and production cost the fan is low.

Description

technical field [0001] The invention belongs to cooling equipment, in particular to an energy-saving cooling fan for engineering machinery engines. Background technique [0002] The optimum operating temperature range of construction machinery engines is 80-95°C. At this time, the engine has the highest efficiency and saves energy. When the engine operates below the optimum operating temperature, it will cause poor fuel evaporation and atomization of the engine, deterioration of combustion, and low temperature. The viscosity of the lower engine oil increases, which increases the friction loss, and also causes the corrosion and wear of the cylinder to cause a lot of waste of fuel, and the engine runs at a temperature higher than the optimum temperature, which will cause the cylinder’s inflation coefficient to decrease, and the power of the engine will decrease. The high temperature will destroy the lubricating oil film, make the lubricating oil deteriorate and fail, and affec...

AI Technical Summary

Problems solved by technology

The problem with the clutch fan is: when the clutch is engaged, the cooling system is still driven by the fixed transmission ratio driven by the engine, and the installation position of the fan is still limited, the cooling air flow resistance caused by the radiator installation method increases, and the fan The problem of high energy consumption cannot be solved, and the frequent clutch fan at high speed will cause new load and thermal shock stress to the engine, and long-term operation will reduce the life of the engine and radiator

This kind of cooling system is widely used in imported construction machinery, but due to the existence of two energy conversions in the energy transfer process of this cooling system, the energy transfer loss in the middle is relatively large, the price is relatively expensive, and it needs to be preheated when starting in cold weather

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