CN205639266U - Lubricated oil duct structure of in -line four cylinder engine crankshaft - Google Patents
Lubricated oil duct structure of in -line four cylinder engine crankshaft Download PDFInfo
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- CN205639266U CN205639266U CN201620375846.8U CN201620375846U CN205639266U CN 205639266 U CN205639266 U CN 205639266U CN 201620375846 U CN201620375846 U CN 201620375846U CN 205639266 U CN205639266 U CN 205639266U
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Abstract
The utility model relates to a lubricated oil duct structure of in -line four cylinder engine crankshaft, include the bent axle that is equipped with first trunnion, first rod journal, the second spindle neck, second rod journal, third trunnion, third rod journal, fourth trunnion, fourth rod journal and the 5th trunnion from a left side to the right side in proper order, be equipped with a trunnion perforating hole on the the second spindle neck, be equipped with on first rod journal with the communicating first oil duct through -hole of trunnion perforating hole, be equipped with on the second rod journal with the communicating second oil duct through -hole of trunnion perforating hole, also be equipped with a trunnion perforating hole on the fourth trunnion, be equipped with on the fourth rod journal with the communicating first oil duct through -hole of trunnion perforating hole, be equipped with on the third rod journal with the communicating second oil duct through -hole of trunnion perforating hole. The utility model discloses can guarantee the intensity of bent axle own and satisfy under the prerequisite of bearing lubrication, reduce the trunnion perforating hole, simplify the structure, reduce the machine and add the cost.
Description
Technical field
This utility model relates to electromotor, is specifically related to a kind of inline four-cylinder engine crankshaft lubrication oil duct structure.
Background technology
The linear reciprocating motion of piston is changed into the rotary motion of bent axle by piston-mode motor by connecting rod.Bent axle bears the power that connecting rod transmits, and thereby results in the moment around itself axis, thus externally exports torque.It is connected for revolute pair between bent axle with big end, is equivalent to sliding bearing.In order to lubricate the bearing of big end, between trunnion and rod journal, there is oil duct to communicate, by the rotation effect of bent axle, machine oil is supplied to connecting rod bottom-end bearing by oil duct, thus lubricates connecting rod bottom-end bearing.Therefore the design of crankshaft lubrication oil duct, lubrication and crankshaft strength for connecting rod bottom-end bearing have important meaning.CN 204458788U disclosed " a kind of crankshaft of diesel engine lubrication system ", including bent axle, the axle center of bent axle has axis hole, several oil duct that arranges often saving upper radial direction of cranking arm of bent axle forms trunnion oil duct, trunnion oil duct connects with axial axis hole, being also provided with several oil duct on the often joint connecting rod of bent axle, form connecting rod oil line, connecting rod oil line connects with axis hole.It is capable of the overall lubrication of bent axle, extends the service life of bent axle.Engine crankshaft oil duct uses base bearing and the man-to-man fuel system of connecting rod bottom-end bearing at present, sees Fig. 1, and i.e. the through hole of a trunnion is toward a connecting rod bottom-end bearing fuel feeding.Machine oil main oil gallery parallel connection from crankcase enters each base bearing, then enters back into corresponding connecting rod bottom-end bearing by the oil duct of bent axle.Through hole 8 is had on the trunnion of bent axle, trunnion is intervally arranged with rod journal, first, second, third and fourth trunnion aperture offers oil duct through hole 9 with first, second, third and fourth rod journal respectively, trunnion is in rotation process, to the rod journal continuous oil supply of side, it is ensured that the lubrication of connecting rod bottom-end bearing.But, this man-to-man crankshaft oil passage structure is complicated, and first, second, third and fourth trunnion is both needed to machine and adds through hole, has that structure is complicated, machine adds the shortcoming that cost is high.Therefore, existing crankshaft lubrication oil duct needs to be improved.
Summary of the invention
The purpose of this utility model is to provide a kind of inline four-cylinder engine crankshaft lubrication oil duct structure, and it can reduce trunnion through hole, simplify structure on the premise of ensureing the intensity of bent axle own and meeting bearing lubrication, and reduction machine adds cost.
A kind of in-line four cylinder machine crankshaft lubricating oil passage structure described in the utility model, including being sequentially provided with the first trunnion, first connecting rod axle journal, the second trunnion, second connecting rod axle journal, the 3rd trunnion, third connecting rod axle journal, four main neck, fourth link axle journal and the bent axle of the 5th trunnion from left to right, it is characterized in that: on described second trunnion, be provided with a trunnion through hole, one end of this trunnion through hole be the first aperture, the other end be the second aperture；Being provided with the first oil duct through hole on described first connecting rod axle journal, one end of this first oil duct through hole communicates with the second aperture of described trunnion through hole, the other end is the 3rd aperture；Being provided with the second oil duct through hole on described second connecting rod axle journal, one end of this second oil duct through hole communicates with the first aperture of described trunnion through hole, the other end is the 4th aperture；
Also being provided with a trunnion through hole on described four main neck, be provided with the first oil duct through hole on described fourth link axle journal, this first oil duct through hole is connected with one end of trunnion through hole and communicates；Being provided with the second oil duct through hole on described third connecting rod axle journal, this second oil duct through hole is connected with the other end of trunnion through hole and communicates.
Further, the centrage of described trunnion through hole is 50 ° ± 5 ° with the angle of trunnion axis and the plane at rod journal axis place；Angle on the vertical guide being perpendicular to trunnion axis and rod journal axis is 30 ° ± 5 ° to the plane at trunnion axis and rod journal axis place with the centrage of the first oil duct through hole or the centrage of the second oil duct through hole.
Further, the aperture of described trunnion through hole, the first oil duct through hole and the second oil duct through hole is 5-7mm.
This utility model uses above technical scheme, the fuel system of base bearing and connecting rod bottom-end bearing a pair two can be formed, the lubricating oil of the base bearing being i.e. arranged on the second trunnion can be simultaneously toward first connecting rod bottom-end bearing and second connecting rod bottom-end bearing fuel feeding, and being arranged on the base bearing on four main neck can be simultaneously toward third connecting rod bottom-end bearing and fourth link bottom-end bearing fuel feeding.Compare conventional crankshafts oil duct under meeting crankshaft strength and bearing lubrication premise, decrease two trunnion through holes, there is simple in construction, low cost and the advantage such as practical.
Accompanying drawing explanation
Crankshaft oil passage structural representation traditional for Fig. 1；
Fig. 2 is schematic diagram of the present utility model；
Fig. 3 is this utility model main bearing journal through hole schematic diagram；
Fig. 4 is this utility model crankshaft oil passage through hole schematic diagram.
In figure: 1-the first aperture, 2-the second aperture, 3-the 3rd aperture, 4-the 4th aperture, 5-trunnion through hole, the 6 one the first oil duct through holes, 7-the second oil duct through hole, 8-through hole, 9-oil duct through hole, 10-trunnion axis and the plane at rod journal axis place；11-the first trunnion, 12-the second trunnion, 13-the 3rd trunnion, 14-four main neck, 15-the 5th trunnion；21-first connecting rod axle journal, 22-second connecting rod axle journal, 23-third connecting rod axle journal, 24-fourth link axle journal；51-trunnion through hole centrage, 61-the first oil duct through hole centrage, 71 second oil duct through hole centrages.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described.
See a kind of in-line four cylinder machine crankshaft lubricating oil passage structure shown in Fig. 2, Fig. 3 and Fig. 4, including being sequentially provided with the first trunnion 11, first connecting rod axle journal the 21, second trunnion 12, second connecting rod axle journal the 22, the 3rd trunnion 13, third connecting rod axle journal 23, four main neck 14, fourth link axle journal 24 and the bent axle of the 5th trunnion 15 from left to right, its substantive distinguishing features is: be provided with a trunnion through hole 5 on described second trunnion 12, one end of this trunnion through hole be the first aperture 1, the other end be the second aperture 2；Being provided with the first oil duct through hole 6 on described first connecting rod axle journal 21, one end of this first oil duct through hole communicates with the second aperture 2 of described trunnion through hole 5, the other end is the 3rd aperture 3；Being provided with the second oil duct through hole 7 on described second connecting rod axle journal 22, one end of this second oil duct through hole communicates with the first aperture 1 of described trunnion through hole 5, the other end is the 4th aperture 4；
Also being provided with a trunnion through hole 5 on described four main neck 14, be provided with the first oil duct through hole 6 on described fourth link axle journal 24, this first oil duct through hole is connected with one end of trunnion through hole and communicates；Being provided with the second oil duct through hole 7 on described third connecting rod axle journal 23, this second oil duct through hole is connected with the other end of trunnion through hole and communicates.
The lubricating oil part being arranged on base bearing on the second trunnion enters through the second aperture 2, first connecting rod axle journal 21 is flowed under the influence of centrifugal force by the first oil duct through hole 6, lubrication first connecting rod bottom-end bearing, another part lubricating oil enters through the first aperture 1, flow to second connecting rod axle journal 22 by the second oil duct through hole 7 under the influence of centrifugal force, lubricate second connecting rod bottom-end bearing.In like manner, the lubricating oil part being arranged on base bearing on four main neck flows to third connecting rod axle journal 24 by the first oil duct through hole 6 under the influence of centrifugal force, lubrication fourth link bottom-end bearing, another part lubricating oil flows to third connecting rod axle journal 23 by the second oil duct through hole 7 under the influence of centrifugal force, lubricates third connecting rod bottom-end bearing.
The centrage 51 of described trunnion through hole 5 is 50 ° ± 5 ° with the angle of trunnion axis and the plane 10 at rod journal axis place；The centrage 71 of the plane 10 at trunnion axis and rod journal axis place and the centrage 61 of the first oil duct through hole 6 or the second oil duct through hole 7 angle on the vertical guide being perpendicular to trunnion axis and rod journal axis is 30 ° ± 5 °.
The aperture of described trunnion through hole the 5, first oil duct through hole 6 and the second oil duct through hole 7 is 5-7mm(millimeter).
Owing to electromotor is in running, axle journal stress is complicated and load is very big, should ensure that each aperture does not has excessive stress to concentrate and weaken the intensity of bent axle, ensures that fuel feeding is fully to meet lubrication needs again.This utility model is used to disclosure satisfy that such requirement.
Claims (3)
1. an in-line four cylinder machine crankshaft lubricating oil passage structure, including being sequentially provided with the first trunnion (11), first connecting rod axle journal (21), the second trunnion (12), second connecting rod axle journal (22), the 3rd trunnion (13), third connecting rod axle journal (23), four main neck (14), fourth link axle journal (24) and the bent axle of the 5th trunnion (15) from left to right, it is characterized in that: on described second trunnion (12), be provided with a trunnion through hole (5), one end of this trunnion through hole be the first aperture (1), the other end be the second aperture (2)；Being provided with the first oil duct through hole (6) on described first connecting rod axle journal (21), one end of this first oil duct through hole communicates with second aperture (2) of described trunnion through hole (5), the other end is the 3rd aperture (3)；Being provided with the second oil duct through hole (7) on described second connecting rod axle journal (22), one end of this second oil duct through hole communicates with first aperture (1) of described trunnion through hole (5), the other end is the 4th aperture (4)；
Also being provided with a trunnion through hole (5) on described four main neck (14), be provided with the first oil duct through hole (6) on described fourth link axle journal (24), this first oil duct through hole is connected with one end of trunnion through hole and communicates；Being provided with the second oil duct through hole (7) on described third connecting rod axle journal (23), this second oil duct through hole is connected with the other end of trunnion through hole and communicates.
In-line four cylinder machine crankshaft lubricating oil passage structure the most according to claim 1, is characterized in that: the centrage (51) of described trunnion through hole (5) is 50 ° ± 5 ° with the angle of trunnion axis and the plane (10) at rod journal axis place；Angle on the vertical guide being perpendicular to trunnion axis and rod journal axis is 30 ° ± 5 ° to the plane (10) at trunnion axis and rod journal axis place with the centrage (61) of the first oil duct through hole (6) or the centrage (71) of the second oil duct through hole (7).
In-line four cylinder machine crankshaft lubricating oil passage structure the most according to claim 1 and 2, is characterized in that: the aperture of described trunnion through hole (5), the first oil duct through hole (6) and the second oil duct through hole (7) is 5-7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620375846.8U CN205639266U (en) | 2016-04-29 | 2016-04-29 | Lubricated oil duct structure of in -line four cylinder engine crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620375846.8U CN205639266U (en) | 2016-04-29 | 2016-04-29 | Lubricated oil duct structure of in -line four cylinder engine crankshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205639266U true CN205639266U (en) | 2016-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620375846.8U Active CN205639266U (en) | 2016-04-29 | 2016-04-29 | Lubricated oil duct structure of in -line four cylinder engine crankshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205639266U (en) |
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2016
- 2016-04-29 CN CN201620375846.8U patent/CN205639266U/en active Active
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| GR01 | Patent grant |