Oil pump connection structure

A connection structure and oil pump technology, which is applied to lubricating pumps, mechanical equipment, engine components, etc., can solve the problems of complex design structure and high cost, and achieve the effect of saving installation steps

Inactive Publication Date: 2013-03-27
SUZHOU BAISHENG POWER MACHINE
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] The rotor oil pump consists of a casing, an inner rotor, an outer rotor and a pump cover. The inner rotor is fixed on the rotor shaft with keys or pins, and is directly or indirectly driven by the crankshaft gear. The eccentric distance between the inner rotor and the outer rotor center is e. The inner rotor drives the outer rotor to rotate together in the same direction. The number of concave teeth of the outer rotor is one more than the number of convex teeth of the inner rotor. In this way, the inner and outer rotors rotate in the same direction and asynchronously. The outer shape curve of the rotor is a trochoid, so The design structure is complex and the cost is high

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Embodiment Construction

[0011] The present invention is described below in conjunction with accompanying drawing.

[0012] attached figure 1 , 2 It is an oil pump connection structure according to the present invention, including a camshaft assembly 1, an inner rotor 2, and an outer rotor 3; the camshaft assembly 1 includes a cam 4, a rotor shaft 5, and an oil hole 6 is arranged in the rotor shaft 5 The inner rotor 2 is installed in the outer rotor 3; the lower end of the rotor shaft 5 is set as a D-shaped shaft 7; the middle hole of the inner rotor 2 is set as a D-shaped hole 8 matching with the D-shaped shaft 7; The type shaft 7 is sleeved in the D-type hole 8 of the inner rotor 2 .

[0013] The solution of the present invention sets the lower end of the rotor shaft 5 as a D-shaped shaft 7 to cooperate with the D-shaped hole 8 in the middle of the inner rotor 2. The installation is simple and convenient, and only needs to directly insert the D-shaped shaft 7 into the D-shaped hole 8 , reducing t...

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Abstract

The invention discloses an oil pump connection structure comprising a cam shaft component, an inner rotor and an outer rotor, wherein the cam shaft component comprises a cam and a rotor shaft; the rotor shaft is provided with an oil hole; the inner rotor is installed in the outer rotor; the lower end of the rotor shaft is set to be a D-shaped shaft; a middle hole of the inner rotor is set to be a D-shaped hole matched with the D-shaped shaft; and the D-shaped shaft is sleeved in the D-shaped hole of the inner rotor. According to the oil pump connection structure, the lower end of the rotor shaft is set to be the D-shaped shaft to be used in conjunction with the D-shaped hole in the middle of the inner rotor, the installation is simple and convenient so long as the D-shaped shaft is inserted into the D-shaped hole, a step for fixing by a key or a pin is reduced, the steps of installation are saved, and the oil pump connection structure is simple and practical.

Description

technical field [0001] The invention relates to a connection structure of an oil pump, which belongs to the structural technical field of outboard motors. Background technique [0002] The rotor oil pump consists of a casing, an inner rotor, an outer rotor and a pump cover. The inner rotor is fixed on the rotor shaft with keys or pins, and is directly or indirectly driven by the crankshaft gear. The eccentric distance between the inner rotor and the outer rotor center is e. The inner rotor drives the outer rotor to rotate together in the same direction. The number of concave teeth of the outer rotor is one more than the number of convex teeth of the inner rotor. In this way, the inner and outer rotors rotate in the same direction and asynchronously. The outer shape curve of the rotor is a trochoid, so The design structure is complicated and the cost is high. Contents of the invention [0003] In view of the above-mentioned existing technical problems, the object of the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16N13/20F16D1/112
Inventor 夏坚
Owner SUZHOU BAISHENG POWER MACHINE
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