A clutch type electric control water pump

Abstract

The invention discloses a clutch type electronic control water pump. The clutch type electronic control water pump comprises a water pump body and a clutch structure. The clutch type electronic control water pump is characterized in that the clutch structure comprises a drive mechanism, clutch shoes, a clutch disc and a one-way bearing. According to the clutch type electronic control water pump, the clutch shoes are directly driven by the special drive mechanism to be in face contact with the clutch disc, the braking function is achieved, and the braking torque is greatly increased; meanwhile the stroke of the clutch shoes can be adjusted by the drive mechanism according to the actual conditions, after the surfaces of the clutch shoes are worn, the clutch shoes are further driven by the drive mechanism, the fit clearance of the drive mechanism and the clutch shoes is not influenced, and thus the service life of the clutch shoes is prolonged; and furthermore, the engagement and disengagement between a belt wheel and the clutch disc are achieved through the one-way bearing, the belt wheel and the clutch disc are sucked and combined stably and firmly through the structure of the one-way bearing, the reliability is improved greatly, and the energy saving effect is more remarkable.

Description

technical field [0001] The invention relates to the field of internal combustion engine water pumps, in particular to a clutch type electric control water pump. Background technique [0002] Internal combustion engine water pumps are mainly mechanical direct-connected water pumps. Based on energy saving considerations, more and more water pumps adopt controllable structures. The clutch mechanism of the existing controllable water pump can generally be divided into axial end face engagement type, multi-wedge radial engagement type, etc. The end face clutch type is to generate electromagnetic field through the power on / off of the electromagnetic coil, and control the contact between the pulley and the pump shaft. The connection and separation rely on flat end surface friction for transmission; the radial clutch type realizes the engagement and separation of the pulley and the water pump shaft through the rotation of the clutch block, and the rotation of the clutch block is als...

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Problems solved by technology

[0003] In the above prior art, most of the coupling and separation of the clutch structure is controlled by the magnetic field generated by the electromagnetic coil, which has the following disadvantages: the braking torque of the electromagnetic clutch is small, and it is not suitable for large water pumps; combined with the suction force generated by the electromagnetic, the suction is not reliable; The surface stroke is fixed, and after long-term wear and tear, the fit clearance cannot be automatically compensated, resulting in a shorter life

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