Double-supporting rotor pump with inert gear
A technology of idler gear and rotor pump, which is applied in lubricating pump, engine lubricating, lubricating pump pressure lubricating, etc. It can solve the problem of large center distance between the drive shaft of the oil pump and the crankshaft, insufficient space for gear arrangement in the engine, and increased cost, etc. problem, achieve the effect of optimizing cavitation and optimizing pressure fluctuation
Pending Publication Date: 2019-06-11
HUNAN OIL PUMP
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Problems solved by technology
[0002] The existing large-displacement oil pump is usually installed in the oil casing below the engine crankcase, and the gear on the engine crankshaft drives the transmission gear of the oil pump. Since the engine crankcase is large, the center distance between the oil pump transmission shaft and the crankshaft is relatively large , under the premise that the transmission ratio is determined, if we simply rely on increasing the diameter of the oil pump transmission gear and the gear on the crankshaft to match the center distance, it will inevitably cause the gear on the crankshaft and the oil pump transmission gear to be too large, which will increase the cost. The engine also doesn't have enough space for gears with a large diameter
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[0024] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and the drawings, and the content mentioned in the embodiments does not limit the present invention.
[0025] In the description of the present invention, it should be understood that the terms “first” and “second” are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. In the description of the present invention, "plurality" means two or more than two, unless specifically defined otherwise. In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be mechanically connected or electrically connected, or two The internal communicatio...
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The invention provides a double-supporting rotor pump with an inert gear. The double-supporting rotor pump comprises a pump body, a pump cover, an inner rotor, an outer rotor, a transmission shaft, atransmission gear, the inert gear, and an inert wheel shaft, the inner rotor is fixed in the middle of the transmission shaft, the two ends of the transmission shaft are rotatably mounted in shaft holes in the pump body and the pump cover respectively, bushes are mounted in the shaft holes in the pump body and the pump cover in a pressed mode respectively, the inert wheel shaft is fixedly mountedon the pump body, a bush is mounted in the shaft hole in the inert gear in a pressed mode, the inert gear is rotatably mounted on the inert wheel shaft through the bush, the transmission gear is fixedly mounted at one end of the transmission shaft and meshed with the inert gear, a shaft hole convex table is arranged on the inner side face of the pump cover, and a groove is formed in the position,corresponding to the shaft hole convex table of the pump cover, of the inner rotor. As the shaft hole convex table is arranged on the inner side face of the pump cover, the length of the shaft hole ofthe pump cover is prolonged, the supporting for the transmission shaft is increased, and as the groove is formed in the position, corresponding to the shaft hole convex table of the pump cover, of the inner rotor, the overall thickness and rotation of the inner rotor cannot be affected.
Description
Technical field [0001] The invention relates to an engine lubrication system component, in particular to a rotor type oil pump with an idler gear. Background technique [0002] The existing large-displacement oil pump is usually installed in the oil shell under the engine crankcase, and the oil pump transmission gear is driven by the gear on the engine crankshaft. Because the engine crankcase is large, the center distance between the oil pump drive shaft and the crankshaft is relatively large. Under the premise of determining the transmission ratio, if you simply rely on increasing the diameter of the oil pump transmission gear and the gear on the crankshaft to match the center distance, it will inevitably cause the gear on the crankshaft and the oil pump transmission gear to be too large, which will increase the cost. The engine also does not have enough space to arrange gears with large diameters. Therefore, an idler gear must be added between the oil pump transmission gear an...
Claims
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Login to View More IPC IPC(8): F16N13/20F01M1/02
Inventor 李维顺许仲秋刘光明刘铁飞佘笑梅
Owner HUNAN OIL PUMP