Device and method for protecting electromagnetic fan clutch

Abstract

The invention discloses a device and a method for protecting an electromagnetic fan clutch. The device comprises a protecting plate and two locking bolts. The protecting plate is of a coverless plate shape with a plate edge and a plate bottom. Holes are formed in the plate bottom. The plate edge is perpendicular to the plate bottom. Two lug plates for fixing are disposed at the top of the plate edge. Each lug plate is provided with a locking fixing hole. Each locking bolt is fixed on the clutch through the corresponding locking fixing hole. Trial shows that by the device for protecting the electromagnetic fan clutch, engine heat management is improved effectively, heat exchange efficiency is increased, fuel consumption is lowered, power performance of an engine is improved, and the defect that a gap between a clutch drive disc and a highly-magnetic steel set blocks easily to cause clutch failure in the prior art is overcome.

Description

technical field [0001] The invention relates to an electromagnetic fan clutch protection device and method, belonging to the technical field of machinery. Background technique [0002] According to the needs of vehicles in the past two years for energy saving, environmental protection, and low-temperature engine wear and emission reduction, some new car engines have been equipped with cooling electromagnetic fan clutches. Since the manufacturing process and management of vehicle engines in my country have not yet met the vehicle production requirements of developed countries, often The following reasons block the gap between the clutch drive disc and the magnetic steel group. [0003] 1. In the production process of the passenger car factory, the electromagnetic fan clutch needs to be cut, polished, and welded during production. The metal gaskets and metal spring gaskets dropped during the assembly process will be sucked into the metal gaskets and metal fragments by the magne...

AI Technical Summary

Problems solved by technology

[0003]1. During the production process of the bus factory, the electromagnetic fan clutch needs to be cut, polished and welded during the production process, and the metal gasket dropped during the assembly process, Metal spring pads, the magnetic circuit gap will absorb metal gaskets, metal fragments, metal welding slag, metal iron filings, and metal garbage, which will block the magnetic circuit gap and cause the clutch to not operate normally

[0004]2. Due to a large number of metal gaskets, screws, bolts, metal fragments, metal welding slag, metal iron filings, and metal garbage falling on the road, the vehicle was on the road When running on the wheel, various metal gaskets, screws, bolts, metal fragments, metal iron filings, and metal garbage will be sucked into the gap between the drive disc and the magnetic steel group by the magnetic steel, blocking the magnetic circuit gap and causing the clutch to malfunction. run

[0011]2. Metal particles, metal trash

[0014]3. Metal filings, metal welding slag

[0017]Because the existing electromagnetic fan clutches are equipped with multiple high-strength magnetic steel groups and have a certain gap, it is more likely to cause metal fragments, metal particles, metal iron filings and corrosion The fallen metal material falls into the gap attracted by the magnetic steel. In winter and when the engine is started, the water temperature of the water tank needs to rise rapidly and the fan cannot be separated, so that the fan can run at high speed and dissipate heat quickly. In this state, the fan increases the power consumption of the engine and wastes fuel, which increases the The mechanical wear of the engine at low temperature increases the emission of harmful exhaust gas, which increases the fuel consumption of the vehicle and increases the operating cost. In severe cases, the vehicle cannot be used

[0018] In the process of realizing the present invention, the inventor found that in the existing product technology, there are at least high-strength magnetic steel group and clutch drive plate installed on the clutch fan flange The gap is easy to inhale metal gaskets, metal fragments, metal particles, metal iron filings, and metal garbage blockages that cannot be separated, causing the electromagnetic fan clutch to fail, low energy utilization, damage to the clutch, and low reliability, which can not really save energy and increase the vehicle The purchase cost does not achieve the ideal use effect

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