阅读说明：本技术 一种集成机油泵驱动功能的曲轴总成 (Crankshaft assembly integrating oil pump driving function ) 是由 刘凯 毛勇 江琳琳 余国强 邓基峰 姚强 殷勇 刘蓉 陈震 程庆 王鑫 朱顺 于 2021-01-04 设计创作，主要内容包括：一种集成机油泵驱动功能的曲轴总成,包括曲轴、机油泵、转轴、过渡支架,机油泵固定在过渡支架上,转轴的一端通过过渡支架与发动机下缸体的顶部固定连接,转轴的另一端同轴套设有驱动齿轮、从动齿轮,驱动齿轮与曲轴上的曲轴齿环相啮合,从动齿轮与机油泵上的机油泵齿轮相啮合。该设计结构紧凑、机械传递能量损失小。(A crankshaft assembly integrating a driving function of an oil pump comprises a crankshaft, the oil pump, a rotating shaft and a transition support, wherein the oil pump is fixed on the transition support, one end of the rotating shaft is fixedly connected with the top of a lower cylinder body of an engine through the transition support, a driving gear and a driven gear are coaxially sleeved at the other end of the rotating shaft, the driving gear is meshed with a crankshaft gear ring on the crankshaft, and the driven gear is meshed with an oil pump gear on the oil pump. The design has compact structure and small mechanical transmission energy loss.)

1. The utility model provides a bent axle assembly of integrated oil pump drive function which characterized in that:

the crankshaft assembly comprises a crankshaft (1), an oil pump (2), a rotating shaft (3) and a transition support (4), wherein the oil pump (2) is fixed on the transition support (4), one end of the rotating shaft (3) is fixedly connected with the top of a lower cylinder body of an engine through the transition support (4), a driving gear (5) and a driven gear (6) are coaxially sleeved at the other end of the rotating shaft (3), the driving gear (5) is meshed with a crankshaft gear ring (11) on the crankshaft (1), and the driven gear (6) is meshed with an oil pump gear (21) on the oil pump (2).

2. The crankshaft assembly integrating the drive function of the oil pump of claim 1, wherein:

the upper part of the transition support (4) is fixedly connected with the lower part of the oil pump (2), and the bottom of the transition support (4) is fixedly connected with the top of the lower cylinder body of the engine through an adjusting gasket (7).

3. The crankshaft assembly integrating the oil pump drive function of claim 2, wherein:

the transition support (4) comprises a first fixing plate (41) and a second fixing plate (42) which are arranged in parallel, the two ends of the first fixing plate (41) and the two ends of the second fixing plate (42) are fixedly connected through a first connecting plate (43) and a second connecting plate (44), and the middle parts of the first fixing plate (41) and the second fixing plate (42) are fixedly connected through a third connecting plate (45).

4. A crankshaft assembly incorporating oil pump drive functionality according to claim 3, wherein:

the bottoms of the first fixing plate (41) and the second fixing plate (42) are fixedly connected with the top of the lower cylinder body of the engine through adjusting gaskets (7), and the top of the first connecting plate (43) is fixedly connected with the oil pump (2).

5. The crankshaft assembly integrating the oil pump drive function of claim 4, wherein:

the top of the first connecting plate (43) is provided with a first bolt hole (46) connected with the oil pump (2), and the first fixing plate (41) and the second fixing plate (42) are both provided with a plurality of second bolt holes (47) connected with a lower cylinder of the engine.

6. A crankshaft assembly incorporating oil pump drive functionality according to claim 3, wherein:

the first connecting plate (43), the third connecting plate (45) and the second connecting plate (44) are respectively and axially provided with a first through hole (431), a second through hole (451) and a third through hole (441) for the rotating shaft (3) to pass through.

7. A crankshaft assembly incorporating oil pump drive functionality according to claim 3, wherein:

the first connecting plate (43), the second connecting plate (44) and the third connecting plate (45) are all of arch structures.

8. A crankshaft assembly incorporating oil pump drive functionality according to any of claims 1-7, wherein:

the driven gear (6) is positioned between the driving gear (5) and the transition support (4).

Technical Field

The invention belongs to the technical field of automobile engines, and particularly relates to a crankshaft assembly integrating an oil pump driving function.

Background

The oil pump is a device for forcibly pressing and conveying the engine oil to the moving surface of each part of the engine for lubrication after the engine oil is increased to a certain pressure, and is widely applied to the field of internal combustion engines. At present, the oil pump is mostly in a gear type and is mostly driven by a chain, the gear is pressed on a rotating shaft of the oil pump, an oil pump driving gear is pressed on the end part of a crankshaft, and the oil pump is driven by the crankshaft. Since this method requires an increase in the length of the crankshaft, it results in an increase in the axial width of the crankcase, which is disadvantageous in compact arrangement of parts.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provide a crankshaft assembly integrating the driving function of an oil pump, which has a compact structure and small mechanical transmission energy loss.

In order to achieve the above purpose, the technical scheme of the invention is as follows:

a crankshaft assembly integrating a driving function of an oil pump comprises a crankshaft, the oil pump, a rotating shaft and a transition support, wherein the oil pump is fixed on the transition support, one end of the rotating shaft is fixedly connected with the top of a lower cylinder body of an engine through the transition support, a driving gear and a driven gear are coaxially sleeved at the other end of the rotating shaft, the driving gear is meshed with a crankshaft gear ring on the crankshaft, and the driven gear is meshed with an oil pump gear on the oil pump.

The upper part of the transition support is fixedly connected with the lower part of the oil pump, and the bottom of the transition support is fixedly connected with the top of the lower cylinder body of the engine through an adjusting gasket.

The transition support comprises a first fixing plate and a second fixing plate which are arranged in parallel, the two ends of the first fixing plate and the two ends of the second fixing plate are fixedly connected through a first connecting plate and a second connecting plate respectively, and the middle parts of the first fixing plate and the second fixing plate are fixedly connected through a third connecting plate.

The bottom parts of the first fixing plate and the second fixing plate are fixedly connected with the top part of the lower cylinder body of the engine through adjusting gaskets, and the top part of the first connecting plate is fixedly connected with the oil pump.

The top of the first connecting plate is provided with a first bolt hole connected with an oil pump, and the first fixing plate and the second fixing plate are both provided with a plurality of second bolt holes connected with a lower cylinder body of the engine.

And the first connecting plate, the third connecting plate and the second connecting plate are respectively and axially provided with a first through hole, a second through hole and a third through hole for the rotating shaft to pass through.

The first connecting plate, the second connecting plate and the third connecting plate are all of arch structures.

The driven gear is located between the driving gear and the transition support.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention relates to a crankshaft assembly integrating the driving function of an oil pump, which comprises a crankshaft, the oil pump, a rotating shaft and a transition support, wherein the oil pump is fixed on the transition support, one end of the rotating shaft is fixedly connected with the top of a lower cylinder body of an engine through the transition support, the other end of the rotating shaft is coaxially sleeved with a driving gear and a driven gear, the driving gear is meshed with a crankshaft gear ring on the crankshaft, and the driven gear is meshed with an oil pump gear on the oil pump. Therefore, the invention has compact structure and small mechanical transmission energy loss.

2. The bottom of the transition support in the crankshaft assembly integrating the oil pump driving function is fixedly connected with the top of the lower cylinder body of the engine through the adjusting gasket, and the gap between the gear pair can be effectively adjusted by adding the adjusting gasket, so that the problem of unreasonable meshing gap between the crankshaft and the driving gear caused by errors such as manufacturing and assembling is solved, and abnormal sound of the gear during working is avoided. Therefore, the invention can effectively avoid the generation of gear abnormal sound.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the transition support in fig. 1.

In the figure, a crankshaft 1, an oil pump 2, a rotating shaft 3, a transition bracket 4, a first fixing plate 41, a second fixing plate 42, a first connecting plate 43, a first through hole 431, a second connecting plate 44, a third through hole 441, a third connecting plate 45, a second through hole 451, a first bolt hole 46, a second bolt hole 47, a driving gear 5, a driven gear 6 and an adjusting shim 7.

Detailed Description

The present invention will be described in further detail with reference to the following description and embodiments in conjunction with the accompanying drawings.

Referring to fig. 1 and 2, a crankshaft assembly integrating a driving function of an oil pump comprises a crankshaft 1, an oil pump 2, a rotating shaft 3 and a transition support 4, wherein the oil pump 2 is fixed on the transition support 4, one end of the rotating shaft 3 is fixedly connected with the top of a lower cylinder body of an engine through the transition support 4, the other end of the rotating shaft 3 is coaxially sleeved with a driving gear 5 and a driven gear 6, the driving gear 5 is meshed with a crankshaft gear ring 11 on the crankshaft 1, and the driven gear 6 is meshed with an oil pump gear 21 on the oil pump 2.

The upper part of the transition support 4 is fixedly connected with the lower part of the oil pump 2, and the bottom of the transition support 4 is fixedly connected with the top of the lower cylinder body of the engine through an adjusting gasket 7.

The transition support 4 comprises a first fixing plate 41 and a second fixing plate 42 which are arranged in parallel, two ends of the first fixing plate 41 and two ends of the second fixing plate 42 are respectively fixedly connected through a first connecting plate 43 and a second connecting plate 44, and the middle parts of the first fixing plate 41 and the second fixing plate 42 are fixedly connected through a third connecting plate 45.

The bottoms of the first fixing plate 41 and the second fixing plate 42 are fixedly connected with the top of the lower cylinder body of the engine through an adjusting gasket 7, and the top of the first connecting plate 43 is fixedly connected with the oil pump 2.

The top of the first connecting plate 43 is provided with a first bolt hole 46 connected with the oil pump 2, and the first fixing plate 41 and the second fixing plate 42 are both provided with a plurality of second bolt holes 47 connected with the lower cylinder of the engine.

The first connecting plate 43, the third connecting plate 45 and the second connecting plate 44 are respectively and axially provided with a first through hole 431, a second through hole 451 and a third through hole 441 for the rotating shaft 3 to pass through.

The first connecting plate 43, the second connecting plate 44 and the third connecting plate 45 are all arch-shaped structures.

The driven gear 6 is located between the driving gear 5 and the transition support 4.

The principle of the invention is illustrated as follows:

the invention discloses a crankshaft assembly integrating a driving function of an oil pump, which is arranged on the top surface of a lower cylinder body of an engine and comprises the oil pump 2, a rotating shaft 3 and a transition support 4, wherein the transition support 4 is fixed on the cylinder body, the oil pump 2 is fixed on the transition support 4, a crankshaft gear ring 11 drives the rotating shaft 3 to rotate through a driving gear 5, meanwhile, the rotating shaft 3 drives the oil pump 2 to run through a driven gear 6, and a driving source of the crankshaft gear ring 11 is directly adopted, so that the integral structure is compact, and the mechanical transmission loss is small.

Example 1:

referring to fig. 1 and 2, a crankshaft assembly integrating a driving function of an oil pump includes a crankshaft 1, an oil pump 2, a rotating shaft 3, and a transition bracket 4, where the transition bracket 4 includes a first fixing plate 41 and a second fixing plate 42 arranged in parallel, two ends of the first fixing plate 41 and the second fixing plate 42 are respectively fixedly connected by a first connecting plate 43 and a second connecting plate 44, middle portions of the first fixing plate 41 and the second fixing plate 42 are fixedly connected by a third connecting plate 45, the first connecting plate 43, the second connecting plate 44, and the third connecting plate 45 are all in an arch structure, the first connecting plate 43, the third connecting plate 45, and the second connecting plate 44 are respectively and axially provided with a first through hole 431, a second through hole 451, and a third through hole 441 for the rotating shaft 3 to pass through, the first fixing plate 41 and the second fixing plate 42 are both connected with a top surface of a lower cylinder body of an engine through a plurality of second bolt holes 47 formed thereon, adjusting gaskets 7 are arranged between the first fixing plate 41 and the lower engine cylinder body and between the bottom of the second fixing plate 42 and the lower engine cylinder body, the first connecting plate 43 is connected with the lower part of the oil pump 2 through a first bolt hole 46 formed in the top of the first connecting plate, one end of the rotating shaft 3 sequentially passes through the first through hole 431, the second through hole 451 and the third through hole 441 and then is fixed, the other end of the rotating shaft 3 is coaxially sleeved with a driving gear 5 and a driven gear 6, the driven gear 6 is located between the driving gear 5 and the first connecting plate 43, the driving gear 5 is meshed with a crankshaft gear ring 11 on the crankshaft 1, and the driven gear 6 is meshed with the oil pump gear 21 on the oil pump 2.