CN209309149U - Pancake engine Curved shaft support device - Google Patents
Pancake engine Curved shaft support device Download PDFInfo
- Publication number
- CN209309149U CN209309149U CN201822042838.3U CN201822042838U CN209309149U CN 209309149 U CN209309149 U CN 209309149U CN 201822042838 U CN201822042838 U CN 201822042838U CN 209309149 U CN209309149 U CN 209309149U
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- Prior art keywords
- main bearing
- bearing shell
- accommodation groove
- oil
- oil duct
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The utility model discloses a kind of pancake engine Curved shaft support devices, including support base and two main bearing shells being set to inside support base, main bearing shell is arc-shaped structure, the main bearing shell has for accommodating the accommodation groove of lubricating oil and be connected to accommodation groove and for that will guide the guide hole into accommodation groove into the lubricating oil in the support base, accommodation groove on two main bearing shells is connected, and the length of accommodation groove is less than the length of main bearing shell.The pancake engine of the utility model Curved shaft support device has half tank structure by designing on main bearing shell, can effectively increase the contact area of main bearing shell and crankshaft, improve the bearing capacity and service life of main bearing shell.
Description
Technical field
The utility model belongs to technical field of engines, specifically, horizontally-opposed starting the utility model relates to a kind of
Machine Curved shaft support device.
Background technique
Available engine is in the majority with straight engine, and engine spindle watt uses upper and lower main bearing shell design structure, under usual
Main bearing shell need to carry the explosion pressure of engine, then descend on the inside of main bearing shell and do not design oil groove, to increase the bearing area of bearing shell.
Upper main bearing shell is not necessarily to carry the explosion pressure of engine, and usually at upper main bearing shell center, design has oil groove, to moisten main oil gallery
Lubricating oil is introduced into oil groove, carries out the lubrication of crankshaft journal.
Therefore, the shortcomings that pancake engine existing Curved shaft support device, is:
1, the design of main bearing shell oil groove reduces the bearing area of bearing shell at the contact surface of bearing shell and crankshaft journal, reduces
The surface bearing capacity and wearability of bearing shell；
2, there is the differentiation of upper main bearing shell and lower main bearing shell when main bearing shell designs, existing lower main bearing shell does not have oil groove, only upper master
Bearing shell has oil groove.Main bearing shell design has differences, it will increases the processing cost of main bearing shell single-piece.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model mentions
For a kind of pancake engine Curved shaft support device, it is therefore an objective to improve the bearing capacity and service life of main bearing shell.
To achieve the goals above, the technical solution that the utility model is taken are as follows: pancake engine Curved shaft support
Device, including support base and two main bearing shells being set to inside support base, main bearing shell is arc-shaped structure, the main bearing shell tool
Have the accommodation groove for accommodating lubricating oil and be connected to accommodation groove and for by enter the support base in lubricating oil guide to
Guide hole in accommodation groove, the accommodation groove on two main bearing shells are connected, and the length of accommodation groove is less than the length of main bearing shell.
The guide hole is located between the both ends on the arc length direction of the main bearing shell, and the accommodation groove is from guide hole
Start to extend on the end face on the arc length direction of main bearing shell, accommodation groove is circular groove.
Guide hole and accommodation groove on the main bearing shell are respectively provided with two, and each guide hole is connected with an accommodation groove respectively
Logical, two accommodation grooves on each main bearing shell are connected with an accommodation groove on another main bearing shell respectively.
The guide hole is circular hole.
The support base includes the first support half and the second support half positioned opposite, and described two main bearing shells are located at
Between first support half and the second support half, the first support half has the first oil duct for accommodating lubricating oil, and second
Support half has the second oil duct for accommodating lubricating oil and being connected with the first oil duct, the first oil duct and the second oil duct and institute
Guide hole is stated to be connected.
First oil duct and second oil duct are arc-shaped and the radian of the first oil duct and the second oil duct is 180
Degree.
First support half has for lubricating oil to be guided to the main oil gallery into first oil duct.
The main oil gallery is aligned with a guide hole on the main bearing shell, which is located in the axial direction of main oil gallery.
The pancake engine of the utility model Curved shaft support device has half oil groove knot by designing on main bearing shell
Structure can effectively increase the contact area of main bearing shell and crankshaft, improve the bearing capacity and service life of main bearing shell.
Detailed description of the invention
This specification includes the following drawings, and shown content is respectively:
Fig. 1 is the cross-sectional view of the utility model pancake engine Curved shaft support device；
Fig. 2 is main bearing shell installation diagrammatic cross-section；
Fig. 3 is the structural schematic diagram of main bearing shell；
In the figure, it is marked as the 1, first support half；2, the second support half；3, main oil gallery；4, main bearing shell；5, the first oil
Road；6, the second oil duct；7, guide hole；8, accommodation groove.
Specific embodiment
Below against attached drawing, by making to specific embodiment of the present utility model further to exemplary description is implemented
Detailed description, it is therefore an objective to help those skilled in the art to have the design of the utility model, technical solution more complete, accurate
With deep understanding, and facilitate its implementation.
It should be noted that in embodiment disclosed below, " first " and " second " not representative structure and/or
Absolute differentiation relationship functionally, does not represent the successive sequence that executes yet, and merely for convenience of description.
As shown in Figure 1 to Figure 3, the utility model provides a kind of pancake engine Curved shaft support device, including
Support base and two main bearing shells 4 being set to inside support base, main bearing shell 4 are arc-shaped structure, and main bearing shell 4 has for accommodating
The accommodation groove 8 of lubricating oil and be connected to accommodation groove 8 and for will enter support base in lubricating oil guide drawing into accommodation groove 8
Guide hole 7, the accommodation groove 8 on two main bearing shells 4 are connected, and the length of accommodation groove 8 is less than the length of main bearing shell 4.
Specifically, as shown in Figure 1 to Figure 3, the radian of main bearing shell 4 is 180 degree, two main bearing shells 4 be it is positioned opposite and
Two main bearing shells 4 are coaxial, and crankshaft is passed through between two main bearing shells 4.Guide hole 7 is located at two on the arc length direction of main bearing shell 4
Between end, accommodation groove 8 be from guide hole 7 extend on the end face on the arc length direction of main bearing shell 4, accommodation groove 8 is circle
Arc groove and accommodation groove 8 are the groove being arranged on the inner headed face for facing crankshaft of main bearing shell 4, and guide hole 7 is circular hole and draws
Guide hole 7 is on main bearing shell 4 along the through-hole for extending radially through setting of main bearing shell 4, the axis of accommodation groove 8 and the axis of guide hole 7
Spatially perpendicular and accommodation groove 8 axis is parallel with the axis of main bearing shell 4.For pancake engine, engine
In work done, outburst impact force can all be generated to the main bearing seat of the right and left, so main bearing shell 4 and the contact area of crankshaft are wanted
It is sufficiently large, therefore annular oil groove cannot be set among main bearing shell 4, and by the way that the radian of accommodation groove 8 is set smaller than main bearing shell 4
Radian, can effectively increase the contact area of main bearing shell 4 Yu crankshaft, accommodation groove 8 forms opening on the end face of main bearing shell 4, two
Both ends end face on the arc length direction of a main bearing shell 4 is bonded respectively, is connected so that the accommodation groove 8 on two main bearing shells 4 is in
State, it is possible to increase the carrying face pressure in 4 centre of main bearing shell so that the carrying of main bearing shell 4 and lubricating ability are more efficient.
As shown in Figure 1 to Figure 3, the guide hole 7 on main bearing shell 4 and accommodation groove 8 are respectively provided with two, the arc of two accommodation grooves 8
Degree size is identical, and each guide hole 7 is connected with an accommodation groove 8 respectively, two accommodation grooves 8 difference on each main bearing shell 4
It is connected with an accommodation groove 8 on another main bearing shell 4.Two guide holes 7 on main bearing shell 4 are respectively close to main bearing shell 4
One end on arc length direction, two accommodation grooves 8 on main bearing shell 4 are respectively on one end end face on the arc length direction of main bearing shell 4
Form opening.Accommodation groove 8 and guide hole 7 are located at the middle position in the width direction of main bearing shell 4, the width side of main bearing shell 4
Xiang Yuqi is axially parallel, high lubricating effect.Therefore left and right main bearing shell 4 shares 4 guide holes 7, secondary to friction can carry out abundant
Lubrication.In the inside of main bearing shell 4, design has accommodation groove 8 simultaneously, convenient for quickly forming oil film on bearing shell surface.
As shown in Figure 1 to Figure 3, support base includes the first support half 1 and the second support half 2 positioned opposite, and two
Main bearing shell 4 is between the first support half 1 and the second support half 2.First support half 1 and the second support half 2 are fixed
Connection, the centre bore of the first support half 1 is equipped with the mounting hole for accommodating a main bearing shell 4 and the mounting hole is semi-circular hole, the
The centre bore of two support halfs 2 is equipped with the mounting hole for accommodating another main bearing shell 4 and the mounting hole is also semi-circular hole, two peaces
Filling hole is one complete circular hole of formation after coaxial aperture and two mounting hole splits.First support half 1 has for accommodating profit
First oil duct 5 of lubricating oil, the second support half 2 have the second oil duct for accommodating lubricating oil and being connected with the first oil duct 5
6, the first oil duct 5 and the second oil duct 6 are connected with guide hole 7, and the first oil duct 5 and the second oil duct 6 are arc-shaped and the first oil
The radian of road 5 and the second oil duct 6 is 180 degree, and the first oil duct 5 and the second oil duct 6 are coaxial.First oil duct 5 is in the first support half
The circular groove being arranged on the inner headed face in portion 1, the second oil duct 6 are the circular arc being arranged on the inner headed face of the second support half 2
Connected in star forms a ring shaped oil passage after 6 split of the first oil duct 5 and the second oil duct, can carry out the storage of machine oil, and machine oil is full of ring
Shape oil duct convenient for the foundation of engine oil pressure, while continuing fuel feeding for friction is secondary.
As shown in Figure 1 to Figure 3, the first support half 1 has for lubricating oil to be guided to the main oil gallery into the first oil duct 5
3, main oil gallery 3 is connected with the first oil duct 5.Main oil gallery 3 is simultaneously aligned, the guide hole 7 with a guide hole 7 on main bearing shell 4
In in the axial direction of main oil gallery 3.
The utility model is exemplarily described in conjunction with attached drawing above.Obviously, the utility model implements not
It is limited by aforesaid way.As long as the various unsubstantialities that the method concept and technical solution that use the utility model carry out
Improvement；Or it is not improved, the above-mentioned conception and technical scheme of the utility model are directly applied into other occasions, at this
Within the protection scope of utility model.
Claims (8)
1. pancake engine Curved shaft support device, including support base and two main bearing shells being set to inside support base,
Main bearing shell is arc-shaped structure, it is characterised in that: the main bearing shell has the accommodation groove and and accommodation groove for accommodating lubricating oil
It is connected to and is used to the lubricating oil entered in the support base guiding the guide hole into accommodation groove, the accommodating on two main bearing shells
Slot is connected, and the length of accommodation groove is less than the length of main bearing shell.
2. pancake engine according to claim 1 Curved shaft support device, it is characterised in that: the guidance hole location
Between the both ends on the arc length direction of the main bearing shell, the accommodation groove be from guide hole extend to the arc of main bearing shell
On end face on length direction, accommodation groove is circular groove.
3. pancake engine according to claim 2 Curved shaft support device, it is characterised in that: on the main bearing shell
Guide hole and accommodation groove be respectively provided with two, each guide hole is connected with an accommodation groove respectively, two on each main bearing shell
A accommodation groove is connected with an accommodation groove on another main bearing shell respectively.
4. pancake engine according to any one of claims 1 to 3 Curved shaft support device, it is characterised in that: described
Guide hole is circular hole.
5. pancake engine according to any one of claims 1 to 3 Curved shaft support device, it is characterised in that: described
Support base includes the first support half and the second support half positioned opposite, and described two main bearing shells are located at the first support half
And second between support half, the first support half has the first oil duct for accommodating lubricating oil, and the second support half has
The second oil duct for accommodating lubricating oil and being connected with the first oil duct, the first oil duct and the second oil duct are connected with the guide hole
It is logical.
6. pancake engine according to claim 5 Curved shaft support device, it is characterised in that: first oil duct
With second oil duct be arc-shaped and the radian of the first oil duct and the second oil duct is 180 degree.
7. pancake engine according to claim 6 Curved shaft support device, it is characterised in that: first support
Half portion has for lubricating oil to be guided to the main oil gallery into first oil duct.
8. pancake engine according to claim 7 Curved shaft support device, it is characterised in that: the main oil gallery with
Guide hole alignment on the main bearing shell, the guide hole are located in the axial direction of main oil gallery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822042838.3U CN209309149U (en) | 2018-12-06 | 2018-12-06 | Pancake engine Curved shaft support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822042838.3U CN209309149U (en) | 2018-12-06 | 2018-12-06 | Pancake engine Curved shaft support device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209309149U true CN209309149U (en) | 2019-08-27 |
Family
ID=67675928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822042838.3U Active CN209309149U (en) | 2018-12-06 | 2018-12-06 | Pancake engine Curved shaft support device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209309149U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3107303A1 (en) * | 2020-02-13 | 2021-08-20 | Renault S.A.S. | LUBRICATION SYSTEM OF A COMBUSTION ENGINE CRANKSHAFT BEARING BEARING |
-
2018
- 2018-12-06 CN CN201822042838.3U patent/CN209309149U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3107303A1 (en) * | 2020-02-13 | 2021-08-20 | Renault S.A.S. | LUBRICATION SYSTEM OF A COMBUSTION ENGINE CRANKSHAFT BEARING BEARING |
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