Pneumatic frictional fan clutch
A clutch and friction technology, applied in the field of clutches, can solve the problems of easy damage to the engine and poor transmission effect, and achieve the effects of low failure rate, reliable performance and easy maintenance
Inactive Publication Date: 2017-09-19
李小顺
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Problems solved by technology
The traditional fan clutch uses silicone oil as the working medium, and uses the viscous force of the silicone oil to realize the transmission and control the engagement and separation of the fan clutch, but the transmission effect is poor, and the engine is easily damaged
Method used
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[0011] Example: see figure 1 As shown, a pneumatic friction fan clutch includes a driven disc 1, a friction ring 2, a drive disc 4, a retractable closed air cavity mechanism, an elastic force mechanism and a permanent magnet transmission mechanism; the friction ring 2 is arranged on the Between the driven disc 1 and the drive disc 4, the telescopic closed air chamber mechanism includes a cylinder 12, a piston 13 installed in the cavity of the cylinder 12 and a vent shaft 9, and the cylinder 12 is arranged on the The outer end of the driven disk 1, the elastic mechanism is arranged on the axial outer surface of the ventilation shaft 9, and the permanent magnet transmission mechanism includes a fixed plate 5, an aluminum disk 6, a permanent magnet 10 and a magnetically conductive ring 11 , the fixed plate 5 and the aluminum disc 6 are installed on the driving disc 4, the magnetic permeable ring 11 is installed on the driven disc 1, and the permanent magnet 10 is installed on th...
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The invention discloses a pneumatic frictional fan clutch. A friction ring is arranged between a driven plate and a driving plate; a retractable closing air cavity mechanism comprises a cylinder, a piston and a ventilating shaft; the cylinder is arranged at the outer end of the driven plate; an elastic mechanism is arranged on the axial external circular surface of the ventilating shaft; a permanent magnet transmission mechanism comprises a fixed plate, an aluminum plate, a permanent magnet and a magnetic conductive ring; the fixed plate and the aluminum plate are mounted on the driving plate; the magnetic conductive ring is mounted on the driven plate; and the permanent magnet is mounted on the aluminum plate. When the pneumatic frictional fan clutch communicates with proper compressed air, pressure is produced between the cylinder and the piston to force the driving plate to leave away from the driven plate, and the driving plate drives the driven plate to rotate at low speed through the permanent magnet transmission mechanism; and when air supply stops, a friction force is generated between the driving plate and the friction ring and a friction force is also generated between the driven plate and the friction ring through elasticity generated by a compression spring, and therefore, the driven plate is driven to rotate at the speed which is consistent to the speed of the driving plate. The pneumatic friction fan clutch is low in failure rate and easy to repair, and has the characteristics of reliability and engine fault protection capability.
Description
technical field [0001] The invention relates to a clutch, in particular to a pneumatic friction fan clutch for engine cooling. Background technique [0002] When the car is running, the fan needs to work for about 1 / 3, and the cooling fan will consume 5%~8% of the rated power of the engine. After using the fan clutch, it can reduce fuel consumption by 4%~5%, so there are more and more on the market All commercial vehicles are equipped with fan clutches. The traditional fan clutch uses silicone oil as the working medium, and uses the viscous force of the silicone oil to realize transmission and control the engagement and separation of the fan clutch, but the transmission effect is poor, and the engine is easily damaged. Contents of the invention [0003] The object of the present invention is to provide a pneumatic friction fan clutch, which adopts a modular structure, has simple structure, low manufacturing cost and good transmission effect. [0004] The technical soluti...
Claims
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IPC IPC(8): F16D25/0632F01P7/08
CPCF16D25/0632F01P7/085F01P2050/22
Inventor 李小顺
Owner 李小顺