CN203009070U - Double oil groove engine bearing cap - Google Patents
Double oil groove engine bearing cap Download PDFInfo
- Publication number
- CN203009070U CN203009070U CN 201220610555 CN201220610555U CN203009070U CN 203009070 U CN203009070 U CN 203009070U CN 201220610555 CN201220610555 CN 201220610555 CN 201220610555 U CN201220610555 U CN 201220610555U CN 203009070 U CN203009070 U CN 203009070U
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- oil groove
- bearing cap
- cap body
- circumferential
- bearing
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- Valve-Gear Or Valve Arrangements (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model belongs to the field of engine lubrication systems and particularly relates to a double oil groove engine bearing cap. The bearing cap comprises a bearing cap body, wherein a mounting hole connected with a camshaft, a circumferential oil groove and a slant oil groove are formed in the bearing cap body, the circumferential oil groove and the slant oil groove are communicated with each other and distributed in a herringbone shape, the circumferential oil groove is close to the top or the bottom of the bearing cap body, and the slant oil groove faces to the top or the bottom of the bearing cap body, which is opposite to the circumferential oil groove. The bearing cap provided by the utility model has the benefits as follows: the oil groove structure of the optimized bearing cap is the herringbone oil groove, the circumferential oil groove lubricates a shaft neck near to the oil groove through an axial clearance, the slant oil groove adopts a high speed revolution shaft to drive lubricant, excellent lubricating within a wider shaft neck range can be achieved, and the lubrication effects of the two sections of oil grooves are combined together so as to enable that the entire shaft neck is well lubricated.
Description
Technical field
The utility model belongs to the engine lubrication system field, especially relates to a kind of pair of oil groove engine bearing lid.
Background technique
Lubrication system is important constituent element of motor, and lubrication system lost efficacy not only can reduce the output power of motor, the working life of the motor that also can have a strong impact on.Bearing cap and camshaft are the constituent elements of engine lubrication system, the effect of bearing cap is the convex wheel shaft, preventing that camshaft is in operation beats, available engine generally adopts this technology, it is configured to: bearing cap is positioned at above camshaft, be both Spielpassung, bearing cap is connected the common pilot hole that forms camshaft with cylinder head, is used for preventing that camshaft is at circular runout and the axial float of running.Camshaft is in the high speed rotation of the hole of bearing cap and cylinder head composition, and the whether reasonable in design of the oil groove of bearing cap plays most important effect to lubrication system.
Lubricant oil enters the bearing cap oil groove by the oil duct on camshaft under the effect of engine oil pressure and High Rotation Speed centrifugal force in, then under the engine oil pressure effect that continues, lubricant oil by the gap between camshaft and bearing cap hole to bearing cap two ends diffusion, thereby form lubricant film under the High Rotation Speed of camshaft.Existing a kind of bearing support, as notification number be: a kind of camshaft bearing bush seat that the Chinese invention patent of CN102061952A provides, this camshaft bearing bush seat comprises the bearing support body that is positioned at automobile engine cylinder head top, the bearing support body is provided with the mounting hole that camshaft is installed, the side of mounting hole is provided with the eccentric pivot hole of setting-up eccentricity axle, the axis of mounting hole and eccentric pivot hole parallels, and the bearing support body is provided with the bearing support body is fixed on attachment hole on cylinder cap.the oil groove of this bearing cap is positioned at the bearing cap neutral position, can form fast oil film for intermediate portion, obtain good lubrication, and from the distant bearing cap two ends of oil groove, because the gap between camshaft and bearing cap hole is less, the pressure loss of machine oil is larger, machine oil is the arrival bearing cap end positions of capacity in time, can't form lubricant film, thereby cause producing inordinate wear in the bearing cap end positions, for the wider bearing cap of cam journal, corresponding bearing cap hole thereupon can be longer, the area of lubrication failure can be larger like this, the problem of heavy wear is also more serious.
The model utility content
The utility model is mainly too small for the existing lubricated area of oil groove of existing bearing cap, the bearing cap two ends can't form lubricant film, cause the problem of bearing cap two ends inordinate wear, provide a kind of lubricated area larger, all can form lubricant film on whole axle journal, two oil groove engine bearing lids of high lubricating effect.
above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of pair of oil groove engine bearing lid, comprise the bearing cap body, the bearing cap body is provided with the bolt hole that connects with cylinder head, the bearing cap body is provided with the mounting hole that connects camshaft, inwall corresponding with mounting hole on the bearing cap body is provided with Circumferential oil groove, also be provided with oblique oil groove on the inwall corresponding with mounting hole on the bearing cap body, Circumferential oil groove is communicated with oblique oil groove and is " people " font to be arranged, Circumferential oil groove is near top or the bottom of bearing cap body, oblique oil groove top or bottom relative with Circumferential oil groove on the bearing cap body.Circumferential oil groove is communicated with oblique oil groove, lubricant oil is under the effect of engine oil pressure and rotary centrifugal force, enter Circumferential oil groove by the oil duct that arranges on camshaft, then be full of rapidly whole " people " font oil groove, its lubrication principle is as follows: the Circumferential oil groove that along the circumferential direction distributes, to close bearing cap top or bottom diffusion, can form lubricant film preferably near an end of Circumferential oil groove under the engine oil pressure effect; The machine oil of the oblique oil groove of oblique layout under the High Rotation Speed of camshaft drives, can form good lubricant film on the axle journal of camshaft.Thereby adopt this kind " people " font bearing cap oil groove, and can all can form good lubricant film on whole axle journal, for the wider camshaft of axle journal, lubrication effect is more obvious.
As preferably, the arc length of Circumferential oil groove be the inner, bearing cap body bottom surface along 70%～90% of arc length, the arc length of oblique oil groove is that the inner, bearing cap body bottom surface is along 70%～90% of arc length.Under the prerequisite that does not affect bearing cover intensity, long Circumferential oil groove and oblique oil groove should be set, to guarantee good lubrication effect.
As preferably, the angular range of Circumferential oil groove and the projection line of oblique oil groove on the longitudinal section of bearing cap body is 30 °～50 °.The oil groove of oblique setting, lubricated area is larger, and effect is also better.
As preferably, the ultimate range of Circumferential oil groove and oblique oil groove is 60%～85% of bearing cap body vertical height.Under the prerequisite that does not affect bearing cover intensity, Circumferential oil groove and the oblique oil groove of larger area coverage should be set, to guarantee good lubrication effect.
As preferably, the transverse cross-section parallel of Circumferential oil groove and bearing cap body.The transverse cross-section parallel of Circumferential oil groove and bearing cap body, the bearing cap body end is evenly lubricated, high lubricating effect.
Therefore, the beneficial effects of the utility model are: this patent is optimized the tank structure of bearing cap, adopt " people " font oil groove, Circumferential oil groove lubricates the axle journal nearer apart from this oil groove by axial clearance, oblique oil groove adopts the drive lubricant oil of high-speed rotating shaft, form good lubricating in wider axle journal scope, the lubrication of two sections oil grooves combines makes whole axle journal obtain well lubricating.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of prior art;
Accompanying drawing 2 is a kind of structural representations of the present utility model.
Shown in figure: 1-bearing cap body, 2-bolt hole, 3-mounting hole, 4-Circumferential oil groove, the oblique oil groove of 5-.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
as shown in Figure of description 2, a kind of pair of oil groove engine bearing lid, comprise bearing cap body 1, bearing cap body 1 is provided with the semicircle mounting hole 3 that connects camshaft, integral body is crescent shape, respectively be provided with the bolt hole 2 that connects with a cylinder head on two side end faces of bearing cap body 1, bearing cap body 1 is connected and forms the hole of installation camshaft with cylinder head by bolt, inwall corresponding with mounting hole 3 on bearing cap body 1 is provided with Circumferential oil groove 4, the transverse cross-section parallel of Circumferential oil groove 4 and bearing cap body 1, Circumferential oil groove 4 is near the bottom of bearing cap body 1, also be provided with oblique oil groove 5 on the inwall corresponding with mounting hole 3 on bearing cap body 1, oblique oil groove 5 is towards the top of bearing cap body 1, Circumferential oil groove 4 is communicated with oblique oil groove 5 and is " people " font to be arranged, Circumferential oil groove 4 is 45 ° with the angular range of the projection line of oblique oil groove 5 on the longitudinal section of bearing cap body 1, Circumferential oil groove 4 is 80% of bearing cap body 1 vertical height with the ultimate range of oblique oil groove 5, the arc length of Circumferential oil groove 4 is that bearing cap body 1 the inner, bottom surface is along 80% of arc length, the arc length of oblique oil groove 5 is that bearing cap body 1 the inner, bottom surface is along 70% of arc length.
The oil groove of existing bearing cap only has a Circumferential oil groove as shown in Figure of description 1, this oil groove from bearing cap two ends away from, can't take into account the bearing cap end positions, therefore these two ends wearing and tearing are comparatively serious.New oil groove adopts " people " font oil groove, Circumferential oil groove is communicated with oblique oil groove, lubricant oil is under the effect of engine oil pressure and rotary centrifugal force, enter Circumferential oil groove by the oil duct that arranges on camshaft, then be full of rapidly whole " people " font oil groove, its lubrication principle is as follows: the Circumferential oil groove that along the circumferential direction distributes to close bearing cap top or the bottom diffusion, can form lubricant film preferably near an end of Circumferential oil groove under the engine oil pressure effect; The machine oil of the oblique oil groove of oblique layout under the High Rotation Speed of camshaft drives, can form good lubricant film on the axle journal of camshaft.Thereby adopt this kind " people " font bearing cap oil groove, and can all can form good lubricant film on whole axle journal, for the wider camshaft of axle journal, lubrication effect is more obvious.
Bearing cap in this patent is applicable to the camshaft bearing lid, also is applicable to main bearing cap simultaneously.
Should be understood that this embodiment only to be used for explanation the utility model and be not used in restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (5)
1. two oil groove engine bearings are covered, comprise bearing cap body (1), bearing cap body (1) is provided with the bolt hole (2) that connects with cylinder head, bearing cap body (1) is provided with the mounting hole (3) that connects camshaft, the upper inwall corresponding with mounting hole (3) of bearing cap body (1) is provided with Circumferential oil groove (4), it is characterized in that, also be provided with oblique oil groove (5) on the upper inwall corresponding with mounting hole (3) of bearing cap body (1), Circumferential oil groove (4) is communicated with oblique oil groove (5) and is " people " font to be arranged, Circumferential oil groove (4) is near top or the bottom of bearing cap body (1), oblique oil groove (5) is towards upper top or the bottom relative with Circumferential oil groove (4) of bearing cap body (1).
2. a kind of pair of oil groove engine bearing according to claim 1 covered, it is characterized in that, the arc length of Circumferential oil groove (4) be bearing cap body (1) the inner, bottom surface along 70%～90% of arc length, the arc length of oblique oil groove (5) is that bearing cap body (1) the inner, bottom surface is along 70%～90% of arc length.
3. a kind of pair of oil groove engine bearing lid according to claim 2, is characterized in that, Circumferential oil groove (4) is 30 °～50 ° with the angular range of the projection line of oblique oil groove (5) on the longitudinal section of bearing cap body (1).
4. a kind of pair of oil groove engine bearing lid according to claim 3, is characterized in that, Circumferential oil groove (4) is 60%～85% of bearing cap body (1) vertical height with the ultimate range of oblique oil groove (5).
5. according to claim 1 and 2 or 3 or 4 described a kind of pair of oil groove engine bearing lids, is characterized in that the transverse cross-section parallel of Circumferential oil groove (4) and bearing cap body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220610555 CN203009070U (en) | 2012-11-16 | 2012-11-16 | Double oil groove engine bearing cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220610555 CN203009070U (en) | 2012-11-16 | 2012-11-16 | Double oil groove engine bearing cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009070U true CN203009070U (en) | 2013-06-19 |
Family
ID=48600675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220610555 Expired - Fee Related CN203009070U (en) | 2012-11-16 | 2012-11-16 | Double oil groove engine bearing cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009070U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088717A (en) * | 2014-06-24 | 2014-10-08 | 广西玉林市朗泰汽车零部件有限公司 | Diesel engine bearing cover |
-
2012
- 2012-11-16 CN CN 201220610555 patent/CN203009070U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088717A (en) * | 2014-06-24 | 2014-10-08 | 广西玉林市朗泰汽车零部件有限公司 | Diesel engine bearing cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20131116 |