CN209557473U - Engine crankshaft and engine and automobile - Google Patents
Engine crankshaft and engine and automobile Download PDFInfo
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- CN209557473U CN209557473U CN201920146862.3U CN201920146862U CN209557473U CN 209557473 U CN209557473 U CN 209557473U CN 201920146862 U CN201920146862 U CN 201920146862U CN 209557473 U CN209557473 U CN 209557473U
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- connecting rod
- rod neck
- oil
- trunnion
- engine
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Abstract
The utility model provides a kind of engine crankshaft and engine and automobile, the engine crankshaft of the utility model has at least two trunnions of coaxial and spacing setting, and relative to trunnion eccentric setting, and it is located at the connecting rod neck between adjacent trunnion, the both ends of each connecting rod neck are connect via crank arm with adjacent trunnion respectively, in offering connecting rod neck oil supplying hole on connecting rod neck outer peripheral surface, and in forming the oil storage tank being connected to connecting rod neck oil supplying hole on the outer peripheral surface of connecting rod neck, along the circumferential direction of connecting rod neck, oil storage tank is biased relative to connecting rod neck oil supplying hole, and biased direction is opposite with the direction of rotation of trunnion.The engine crankshaft of the utility model can effectively improve the reliability of connecting rod neck and connecting rod bearing shell lubrication, and when engine just starts, the connecting rod neck as caused by oil pressure deficiency can be reduced and connecting rod bearing shell dry friction causes the risk seized, to there is preferable practicability.
Description
Technical field
The utility model relates to technical field of engines, in particular to a kind of engine crankshaft.Meanwhile the utility model is also
Being related to a kind of application has the engine of the engine crankshaft, and is installed with the automobile of the engine.
Background technique
Tile kilning mainly as lack of lubrication between axle journal and bearing shell or gap it is too small caused by.After tile kilning, journal surface
It will appear serious scratch scratch, and aoxidize firing blue.Tile kilning is the mechanical breakdown of engine most serious, though the reason of causing
It has nothing in common with each other, but basic the result is that being protected without oil film and serious dry grinding occur.
Current engine, when crank-shaft link neck is to connecting rod bearing shell fuel feeding, exists due to machine when engine just starts
Oil pressure deficiency leads to the problem of connecting rod bearing shell fuel feeding deficiency, causes oil film that can not establish in a short time, causes connecting rod bearing shell and axis
Neck carries out dry friction, eventually leads to connecting rod bearing shell tile kilning.
Utility model content
In view of this, the utility model is directed to a kind of engine crankshaft, can reinforce the fuel feeding effect to connecting rod neck.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of engine crankshaft has at least two trunnions of coaxial and spacing setting, and relative to the main shaft
Neck eccentric setting and the connecting rod neck being located between the adjacent trunnion, the both ends of each connecting rod neck respectively via
Crank arm is connect with the adjacent trunnion, connecting rod neck oil supplying hole is offered on Yu Suoshu connecting rod neck outer peripheral surface, in the company
The oil storage tank being connected to the connecting rod neck oil supplying hole, along the circumferential direction of the connecting rod neck, the storage are formed on the outer peripheral surface of bar neck
Oil groove is biased relative to the connecting rod neck oil supplying hole, and biased direction is opposite with the direction of rotation of the trunnion.
Further, the position of the oil storage tank is located at by the axis with the main shaft on the outer peripheral surface of the connecting rod neck
In parallel and with the axis vertical line of the main shaft apart from maximum sideline, centered on the axis of the connecting rod neck and along the master
The direction of rotation of axle journal rotates in 45 ° -90 ° of region.
Further, along the axial direction of the connecting rod neck, the oil storage tank is located at the middle part of the connecting rod neck.
Further, along the axial direction of the connecting rod neck, the connecting rod neck oil supplying hole is offset to the side of the oil storage tank.
Further, the oil storage tank is the strip of the circumferentially extending arrangement of connecting rod neck described in ring.
Further, the axial direction of Yu Suoshu connecting rod neck, the size of the oil storage tank are not more than the 1/3 of the connecting rod neck.
Further, in forming trunnion oil supplying hole on the outer peripheral surface of each trunnion, the institute on the connecting rod neck
Connecting rod neck oil supplying hole is stated to be connected with the trunnion oil supplying hole on trunnion described in adjacent at least side.
Compared with the existing technology, the utility model has the advantage that
(1) engine crankshaft described in the utility model, by being arranged on connecting rod neck outer peripheral surface and connecting rod neck fuel feeding
The oil storage tank that hole is connected can store a certain amount of machine oil, also, the direction of rotation phase of the biased direction of oil storage tank and trunnion
Instead, so set, during crankshaft operation, machine oil in oil storage tank by one and the reaction force in Crankshaft motion direction,
To promote the machine oil being stored in oil storage tank that can quickly form one of oil film, lubricated between connecting rod neck and connecting rod bearing shell to improve
Reliability.
(2) the maximum sideline of axis vertical range with main shaft is arranged in the position of oil storage tank, and with the axis of connecting rod neck
Centered on and rotate along 45 ° -90 ° of region along the direction of rotation of trunnion, which belongs to connecting rod neck pressure minimum position, can
Reduce connecting rod neck oil outlet stress to concentrate, and is conducive to quickly form oil film.
(3) oil storage tank is located at the middle position of connecting rod neck axial direction, is so symmetrical arranged, on the one hand makes the stress of connecting rod bearing shell
Uniformly, be on the other hand conducive to machine oil from centre to both sides to being quickly lubricated between connecting rod neck and connecting rod bearing shell.
(4) connecting rod neck oil supplying hole is offset to oil storage tank side, and a guiding role, another party on the one hand can be played to machine oil
If in the case that there is foreign matter in face in machine oil, the foreign matter in machine oil can effectively avoid to the uneven wear of connecting rod bearing shell, so as to
Extend the service life of connecting rod bearing shell.
(5) setting oil storage tank is the strip of ring connecting rod neck circumferential direction, covers oil film to increase connecting rod neck and connecting rod bearing shell
Area, to further quickly form oil film when engine just starts.
(6) width dimensions that oil storage tank is arranged cannot be greater than wide 1/3 of connecting rod neck shelves, on the one hand dredge oil amount can be prevented big,
On the other hand can prevent from will lead to connecting rod bearing shell since width is excessive and become smaller with journal contact area, cause connecting rod bearing shell extremely by
Power.
(7) setting connecting rod neck oil supplying hole is connected with the trunnion oil supplying hole of adjacent at least side, may make machine oil
It is flowed into connecting rod neck oil supplying hole along trunnion oil supplying hole, further increases the reliability of connecting rod neck and connecting rod bearing shell lubrication.
In addition, the another object of the utility model is to propose that a kind of engine, the engine include as described above
Crankshaft.
Meanwhile the utility model also proposes that a kind of automobile, the automobile have vehicle body, be configured on Yu Suoshu vehicle body as above
The engine.
The engine and automobile of the utility model have identical compared with the existing technology with engine crankshaft as described above
Beneficial effect, details are not described herein.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.In
In attached drawing:
Fig. 1 is the partial structure diagram of engine crankshaft described in the utility model embodiment one；
Fig. 2 is the cross-sectional view that oil storage tank described in the utility model embodiment one is applied on connecting rod neck；
Fig. 3 is the structural schematic diagram of the application state of oil storage tank described in the utility model embodiment one；
Fig. 4 is the cross-sectional view of connecting rod neck described in the utility model embodiment one；
Description of symbols:
1- connecting rod neck, 2- trunnion, 3- crank arm, 101- oil storage tank, 102- connecting rod neck oil supplying hole, 103- trunnion fuel feeding
Hole, the sideline a-, the axis of b- connecting rod neck, the axis of c- main shaft, L- vertical line distance.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
For the ease of the description to the present embodiment, the direction of rotation of trunnion is based on arrow direction in attached drawing in the present embodiment
It is shown.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
Embodiment one
The present embodiment is related to a kind of engine crankshaft, which can be when engine just starts, can be in connecting rod
Oil film together is quickly formed between neck and connecting rod bearing shell, to improve the reliability of lubrication, and can be reduced because oil pressure deficiency causes to connect
Dry friction causes the risk seized between bar neck and connecting rod bearing shell.
Based on above-mentioned design philosophy, a kind of exemplary structure of the engine crankshaft of the present embodiment is as shown in Figure 1, this implementation
The engine crankshaft of example has at least two trunnions 2 of coaxial and spacing setting, and relative to 2 eccentric setting of trunnion,
And it is located at the connecting rod neck 1 between adjacent trunnion 2, wherein the both ends of each connecting rod neck 1 are respectively via crank arm 3 and phase
Adjacent trunnion 2 connects, and in offering connecting rod neck oil supplying hole 102 on 1 outer peripheral surface of connecting rod neck, meanwhile, in the periphery of connecting rod neck 1
The oil storage tank 101 being connected to connecting rod neck oil supplying hole 102 is formed on face, a certain amount of machine oil can be stored.
Meanwhile along the circumferential direction of connecting rod neck 1, oil storage tank 101 is biased relative to connecting rod neck oil supplying hole 102, and biased direction with
The direction of rotation of trunnion 2 is opposite.So set, the machine oil in oil storage tank 101 is by one and song during crankshaft operation
The reaction force of the axis direction of motion, to promote the machine oil being stored in oil storage tank 101 that can quickly form one of oil film, to improve
The reliability lubricated between connecting rod neck and connecting rod bearing shell.
Specifically, the connecting rod neck on connecting rod neck 1 supplies in forming trunnion oil supplying hole 103 on the outer peripheral surface of each trunnion 2
Oilhole 102 is connected with the trunnion oil supplying hole 103 on adjacent at least side trunnion 2.As shown in Figure 2, the present embodiment
In connecting rod neck oil supplying hole 102 tiltedly wear the inside of crank arm 3, to be connected with trunnion oil supplying hole 103.In the pressure of lubricating oil pump
Under power effect, reached in oil storage tank 101 so that machine oil flows through connecting rod neck oil supplying hole 102 along trunnion oil supplying hole 103, thus storing up
A certain amount of machine oil of storage in oil groove 101.When engine just starts, due to being stored in storage between connecting rod neck 1 and connecting rod bearing shell
Machine oil in oil groove 101 can quickly establish oil film, to be lubricated therebetween to connecting rod neck 1 with connecting rod bearing shell, to prevent
Therebetween because being seized caused by dry friction.
In conjunction with shown in Fig. 1 to Fig. 4, b is the axis of connecting rod neck, and c is the axis of main shaft, and sideline a is the outer peripheral surface of connecting rod neck 1
On parallel with the axis of the main shaft and maximum sideline axis vertical line distance L with main shaft, the position of oil storage tank 101 is located at side
Line a, it is rotated along 45 ° -90 ° of region centered on the axis b of connecting rod neck 1 and along the direction of rotation of trunnion 2.Due to this position
At 1 pressure minimum of connecting rod neck, therefore oil storage tank 101 is arranged in this region and can reduce the stress concentration of 1 oil outlet of connecting rod neck, and has
Oil film is formed conducive to quick.
In order to make connecting rod bearing shell uniform force, along the axial direction of connecting rod neck 1, oil storage tank 101 is located at the middle part of connecting rod neck 1,
I.e. oil storage tank 101 is located at the axial middle position of connecting rod neck 1, axially and symmetrically relative to connecting rod neck 1, thus be also beneficial to machine oil by
Centre is quickly lubricated to both sides.
In addition, there are in the case where foreign matter in machine oil, in order to can effectively avoid the foreign matter in machine oil to connecting rod bearing shell
Uneven wear, along the axial direction of connecting rod neck 1, connecting rod neck oil supplying hole 102 is offset to the side of oil storage tank 101.The structure can make foreign matter
It is blocked in oil storage tank 101, prevents foreign matter from wearing to connecting rod bearing shell, so as to extend the service life of connecting rod bearing shell.Meanwhile
The side that connecting rod neck oil supplying hole 102 is offset to oil storage tank 101 is set, guiding role can also be played to the flow direction of machine oil.
In the present embodiment, oil storage tank 101 be ring connecting rod neck 1 circumferentially extending arrangement strip, with increase connecting rod neck 1 with
Connecting rod bearing shell covers the area of oil film, so as to further speed up the formation of oil film when engine just starts.It lets out in order to prevent
Oil mass is big, and in the axial direction of connecting rod neck 1, the size of oil storage tank 101 is not more than the 1/3 of connecting rod neck 1, that is to say the width of oil storage tank 101
Cannot be greater than by spending size by 1 grade wide 1/3 of connecting rod neck.So set, can also prevent from leading to connecting rod bearing shell and axis since width is excessive
Neck contact area becomes smaller, and causes the abnormal stress of connecting rod bearing shell.
In conclusion the engine crankshaft of the present embodiment, by being arranged on 1 outer peripheral surface of connecting rod neck and connecting rod neck fuel feeding
The oil storage tank 101 that hole 102 is connected, can store a certain amount of machine oil.In addition, by setting oil storage tank 101 biased direction with
The direction of rotation of trunnion 2 is on the contrary, can be during crankshaft operation, and the machine oil in oil storage tank 101 is by one and Crankshaft motion
The reaction force in direction, to promote the machine oil being stored in oil storage tank 101 that can quickly form one of oil film.
The engine crankshaft of the utility model can effectively reduce when engine just starts because oil pressure deficiency leads to connecting rod neck
The risk seized with connecting rod bearing shell, and the reliability lubricated between connecting rod neck and connecting rod bearing shell can be improved, to have preferable
Practicability.
Embodiment two
The present embodiment is related to a kind of engine, which includes crankshaft described in embodiment one.The present embodiment starts
Machine passes through the engine crankshaft of Application Example one, can promote the performance of engine, and the service life of engine can be improved.
Meanwhile the present embodiment further relates to a kind of automobile, which has vehicle body, in starting on vehicle body configured with above-mentioned
Machine, the automobile of the present embodiment, which passes through, applies above-mentioned engine, and the vehicle performance of vehicle can be improved.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (9)
1. a kind of engine crankshaft has at least two trunnions (2) of coaxial and spacing setting, and relative to the main shaft
Neck (2) eccentric setting and the connecting rod neck (1) being located between the adjacent trunnion (2), each connecting rod neck (1)
Both ends are connect via crank arm (3) with the adjacent trunnion (2) respectively, are offered on Yu Suoshu connecting rod neck (1) outer peripheral surface
Connecting rod neck oil supplying hole (102), it is characterised in that: formed on the outer peripheral surface of Yu Suoshu connecting rod neck (1) and the connecting rod neck fuel feeding
The oil storage tank (101) of hole (102) connection, the circumferential direction along the connecting rod neck (1), the oil storage tank (101) is relative to the connecting rod
Neck oil supplying hole (102) biasing, and biased direction is opposite with the direction of rotation of the trunnion (2).
2. engine crankshaft according to claim 1, it is characterised in that: the position of the oil storage tank (101) is located at by institute
Parallel with the axis of the main shaft and axis vertical line with the main shaft on the outer peripheral surface of connecting rod neck (1) is stated apart from maximum
Sideline rotates 45 ° -90 ° of region centered on the axis of the connecting rod neck (1) and along the direction of rotation of the trunnion (2)
It is interior.
3. engine crankshaft according to claim 1, it is characterised in that: the axial direction along the connecting rod neck (1), the oil storage
Slot (101) is located at the middle part of the connecting rod neck (1).
4. engine crankshaft according to claim 3, it is characterised in that: the axial direction along the connecting rod neck (1), the connecting rod
Neck oil supplying hole (102) is offset to the side of the oil storage tank (101).
5. engine crankshaft according to claim 3, it is characterised in that: the oil storage tank (101) is connecting rod neck described in ring
(1) strip of circumferentially extending arrangement.
6. engine crankshaft according to claim 5, it is characterised in that: the axial direction of Yu Suoshu connecting rod neck (1), the oil storage
The size of slot (101) is not more than the 1/3 of the connecting rod neck (1).
7. engine crankshaft according to claim 1 to 6, it is characterised in that: in each trunnion (2)
Formed on outer peripheral surface trunnion oil supplying hole (103), the connecting rod neck oil supplying hole (102) on the connecting rod neck (1) with it is adjacent
At least side described in trunnion oil supplying hole (103) on trunnion (2) be connected.
8. a kind of engine, it is characterised in that: the engine includes that engine of any of claims 1-7 is bent
Axis.
9. a kind of automobile, the automobile has vehicle body, it is characterised in that: configured with as claimed in claim 8 on Yu Suoshu vehicle body
Engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920146862.3U CN209557473U (en) | 2019-01-28 | 2019-01-28 | Engine crankshaft and engine and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920146862.3U CN209557473U (en) | 2019-01-28 | 2019-01-28 | Engine crankshaft and engine and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209557473U true CN209557473U (en) | 2019-10-29 |
Family
ID=68307883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920146862.3U Active CN209557473U (en) | 2019-01-28 | 2019-01-28 | Engine crankshaft and engine and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209557473U (en) |
-
2019
- 2019-01-28 CN CN201920146862.3U patent/CN209557473U/en active Active
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