Automatic adjustable variable speed oil pump

Abstract

The invention discloses an automatically adjustable variable speed oil pump, which comprises a rotating shaft (10) of an oil pump main body (1) and a power output shaft (3) of an engine connected through a transmission mechanism; the transmission mechanism includes four single-cone rollers (4 ) and belt (7), four single-cone rollers (4) are two pairs, and the conical surfaces of every pair of two single-cone rollers (4) are opposite and coaxial; wherein a pair of single-cone rollers ( 4) It is limited and slidingly matched with the rotating shaft (10) in the circumferential direction, and the distance between the two single-tapered rollers (4) is adjustable; the other pair of single-tapered rollers (4) and the power output shaft (3) are circumferentially Limiting and sliding fit, the distance between the two single-cone rollers (4) is adjustable; the belt (7) is wrapped around the two pairs of single-cone rollers (4). After adopting the above structure, unnecessary energy loss can be reduced, hydraulic power and mechanical power can be reduced, thereby improving the working efficiency of the engine.

Description

technical field [0001] The invention relates to the technical field of oil pumps, in particular to an automatically adjustable variable speed oil pump. Background technique [0002] When the automobile engine is working, each moving part acts on another part with a certain force, and high-speed relative motion occurs. With relative motion, friction will inevitably occur on the surface of the parts, thereby accelerating wear. Therefore, in order to reduce wear, reduce frictional resistance, and prolong service life, there must be a lubrication system on the engine. The main components of the lubrication system are various equipment such as an oil pump. The function of the oil pump is to increase the oil to a certain pressure and then forcefully send it to the moving surface of each part of the engine. It generally includes a pump cover and a pump body. It is connected with the pump body by screws, and the pump body is equipped with an inner rotor, an outer rotor, a low-press...

AI Technical Summary

Problems solved by technology

[0003] 1) The output oil pressure of the oil pump is determined according to the speed of the engine, and the speed ratio between the speed of the engine and the shaft of the oil pump is constant. Therefore, it cannot adjust the speed of the shaft of the oil pump when the speed of the engine is constant. It also fails to achieve the purpose of adjusting the output oil pressure of the oil pump;

[0004] 2) When the vehicle is at low speed or idling, the average speed of the engine is low, so the output oil pressure of the oil pump is low, and the output oil volume is also small. However, the engine temperature of the vehicle is high at this time, and the required lubricating oil The demand is large, so it is obvious that the oil supply of the oil pump cannot meet the demand, which will cause the engine to burn out;

[0005] 3) When the engine of the vehicle is running at high speed, the oil pump is prone to cavitation, which affects the service life of the oil pump;

[0006] 4) The torque required to realize the rotation of the shaft of the oil pump comes from the output torque of the engine. Since the speed ratio between the speed of the engine and the shaft of the oil pump is constant, the higher the speed of the shaft of the oil pump, the higher the power consumption required by the engine. The bigger it is, it is not conducive to the demand for energy saving and emission reduction of vehicles

Images