CN211573652U - Integral engine camshaft bearing cap - Google Patents
Integral engine camshaft bearing cap Download PDFInfo
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- CN211573652U CN211573652U CN202020015645.3U CN202020015645U CN211573652U CN 211573652 U CN211573652 U CN 211573652U CN 202020015645 U CN202020015645 U CN 202020015645U CN 211573652 U CN211573652 U CN 211573652U
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- camshaft bearing
- bearing cap
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Abstract
The utility model relates to an automobile engine technical field provides an integral engine camshaft bearing cap, including front end camshaft bearing cap, a plurality of third intake camshaft bearing cap and a plurality of third exhaust camshaft bearing cap, still include intake bearing cap connecting plate and exhaust bearing cap connecting plate, intake bearing cap connecting plate and exhaust bearing cap connecting plate are parallel to each other set up in same one side of front end camshaft bearing cap. The utility model provides an integral engine camshaft bearing cap, the entering that will be located first journal department and be located second journal department, four parts of exhaust camshaft bearing cap are integrated to be a front end camshaft bearing cap to be connected a plurality of camshaft bearing caps and front end camshaft bearing cap as overall structure through air intake bearing cap connecting plate and exhaust bearing cap connecting plate, the mode and the dynamic stiffness that have improved camshaft bearing cap are showing, the NVH performance of engine has been improved, reduce engine radiation noise.
Description
Technical Field
The utility model belongs to the technical field of automobile engine technique and specifically relates to a bearing cap of integral engine camshaft is related to.
Background
The engine is a power source of the whole vehicle, the light weight of the engine can improve the load sharing rate of the front wheel, improve the operation stability of the vehicle and reduce noise and vibration. The camshaft bearing cover is arranged on the cylinder cover, and provides support and lubrication for the camshaft after being processed with the cylinder cover assembly, and the camshaft bearing cover is an important component of an engine. The existing camshaft bearing cover is generally independently arranged by a plurality of single bodies and is respectively fixed on a cylinder cover by bolts. Therefore, when the engine is running, the camshaft runs at high speed, and great excitation is generated on each bearing cover, so that the bearing covers vibrate to generate noise. Therefore, some integral camshaft bearing covers appear in the market, but the existing integral camshaft bearing covers have the defects of complex structure, large volume and heavy mass, and are not beneficial to the development of light weight of an engine.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the camshaft bearing cap vibrations noise production of current independent setting when the engine function great, current integral camshaft bearing cap structure is complicated, bulky, the shortcoming that the quality is heavy provides an integral engine camshaft bearing cap.
The utility model provides a technical scheme that its technical problem adopted is: an integrated engine camshaft bearing cap comprising a front camshaft bearing cap, a plurality of third intake camshaft bearing caps and a plurality of third exhaust camshaft bearing caps, the front camshaft bearing cap comprising a first intake camshaft bearing cap and a first exhaust camshaft bearing cap at a first journal and a second intake camshaft bearing cap and a second exhaust camshaft bearing cap at a second journal; the exhaust camshaft structure is characterized by further comprising a plurality of air inlet bearing cover connecting plates fixedly connected with the third air inlet camshaft bearing cover and the second air inlet camshaft bearing cover and a plurality of exhaust bearing cover connecting plates fixedly connected with the third exhaust camshaft bearing cover and the second exhaust camshaft bearing cover, wherein the air inlet bearing cover connecting plates and the exhaust bearing cover connecting plates are arranged in parallel on the same side of the front end camshaft bearing cover.
Further, the first intake camshaft bearing cap, the first exhaust camshaft bearing cap, the second intake camshaft bearing cap, and the second exhaust camshaft bearing cap are integrally formed.
Specifically, reinforcing ribs for fixed connection are arranged at the joint of the first intake camshaft bearing cap and the second intake camshaft bearing cap, the joint of the first exhaust camshaft bearing cap and the second exhaust camshaft bearing cap, and the joint of the second intake camshaft bearing cap and the second exhaust camshaft bearing cap.
And furthermore, the three third air inlet camshaft bearing covers are included, and four air inlet camshaft bearing cover connecting holes are formed in the air inlet bearing cover connecting plate.
Specifically, the intake bearing cover connecting plate fixes the second intake camshaft bearing cover and the three third intake camshaft bearing covers below the four intake camshaft bearing cover connecting holes respectively through connecting pieces.
Specifically, the third intake camshaft bearing cover is provided with a pair of first mounting holes for the connecting piece to penetrate through and an intake camshaft journal hole matched with the intake camshaft journal.
Furthermore, the exhaust camshaft device comprises three third exhaust camshaft bearing covers, and four exhaust camshaft bearing cover connecting holes are formed in the exhaust bearing cover connecting plate.
Specifically, the exhaust bearing cover connecting plate locks and fixes the second exhaust camshaft bearing cover and the three third exhaust camshaft bearing covers below the four exhaust camshaft bearing cover connecting holes through connecting pieces.
Specifically, a pair of second mounting holes for the connecting piece to penetrate through and an exhaust camshaft journal hole matched with the exhaust camshaft journal are formed in the third exhaust camshaft bearing cover.
Specifically, the connecting member is a bolt.
The utility model provides an integral engine camshaft bearing cap's beneficial effect lies in: the intake camshaft bearing cover and the exhaust camshaft bearing cover are integrated into a front end camshaft bearing cover, the camshaft bearing covers of the third, fourth and fifth journals are connected with the front end camshaft bearing cover into an integral structure through an intake bearing cover connecting plate and an exhaust bearing cover connecting plate, the connecting plate is simple in structure and convenient in process, the camshaft bearing covers of the journals are assembled into a whole on the premise of not changing the main structure of an engine, the modal and dynamic stiffness of the camshaft bearing covers are remarkably improved, the NVH performance of the engine is improved, and the radiation noise of the engine is reduced.
Drawings
FIG. 1 is a schematic view of a three-dimensional exploded structure of an integrated engine camshaft bearing cap connected with an engine according to the present invention;
FIG. 2 is a schematic diagram of a three-dimensional structure of a camshaft bearing cap of an integral engine connected with an engine according to the present invention;
FIG. 3 is a top view of an integrated engine camshaft bearing cap provided by the present invention;
fig. 4 is a schematic perspective view of a front camshaft bearing cap in an integral engine camshaft bearing cap according to the present invention;
fig. 5 is a schematic perspective view of a third intake camshaft bearing cap in an integral engine camshaft bearing cap according to the present invention;
fig. 6 is a schematic perspective view of a third exhaust camshaft bearing cap in an integral engine camshaft bearing cap according to the present invention.
In the figure: 100-integrated engine camshaft bearing cap;
10-a front end camshaft bearing cover, 11-a first intake camshaft bearing cover, 12-a first exhaust camshaft bearing cover, 13-a second intake camshaft bearing cover, 14-a second exhaust camshaft bearing cover and 15-reinforcing ribs;
20-a third intake camshaft bearing cover, 21-a first mounting hole and 22-an intake camshaft journal hole;
30-third exhaust camshaft bearing cap, 31-second mounting hole, 32-exhaust camshaft journal hole;
40-an air inlet bearing cover connecting plate, 50-an exhaust bearing cover connecting plate and 60-a connecting piece.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-6, a unitary engine camshaft bearing cap 100 is provided for the present invention. The integrated engine camshaft bearing cap 100 includes a front end camshaft bearing cap 10, a plurality of third intake camshaft bearing caps 20 and a plurality of third exhaust camshaft bearing caps 30, the front end camshaft bearing cap 10 including a first intake camshaft bearing cap 11 and a first exhaust camshaft bearing cap 12 at a first journal and a second intake camshaft bearing cap 13 and a second exhaust camshaft bearing cap 14 at a second journal. As shown in fig. 3, in an integral engine camshaft bearing cap 100 provided by the present invention, the front end camshaft bearing cap 10 is formed by manufacturing and processing the intake camshaft bearing caps (11, 13) and the exhaust camshaft bearing caps (12, 14) of the first journal and the second journal as a whole, and the third intake camshaft bearing cap 20 and the third exhaust camshaft bearing cap 30 are independently processed, and are also formed by manufacturing and processing the aluminum alloy pieces by casting.
The integrated engine camshaft bearing cap 100 further includes an intake bearing cap connecting plate 40 fixedly connecting the plurality of third intake camshaft bearing caps 20 with the second intake camshaft bearing cap 13, and an exhaust bearing cap connecting plate 50 fixedly connecting the plurality of third exhaust camshaft bearing caps 30 with the second exhaust camshaft bearing cap 14, the intake bearing cap connecting plate 40 and the exhaust bearing cap connecting plate 50 being disposed in parallel with each other on the same side of the front end camshaft bearing cap 10. As shown in fig. 3, in the present embodiment, one end of the intake bearing cover connecting plate 40 is fixed to the second intake camshaft bearing cover 13 by a connecting member 60, and one end of the exhaust bearing cover connecting plate 50 is fixed to the second exhaust camshaft bearing cover 14 by a connecting member 60. The intake bearing cap connecting plate 40 is used to connect the plurality of third intake camshaft bearing caps 20 integrally with the front camshaft bearing cap 10. The exhaust bearing cap connecting plate 50 is used to connect a plurality of third exhaust camshaft bearing caps 30 integrally with the front camshaft bearing cap 10. The intake bearing cover connecting plate 40 and the exhaust bearing cover connecting plate 50 are used for connecting all the camshaft bearing covers to form a complete whole, so that the mode and the dynamic rigidity of the camshaft bearing covers are improved, the NVH performance of an engine is improved, and the problem of noise caused by independent arrangement of the camshaft bearing covers is solved.
Further, as shown in fig. 3 and 4, in the integrated engine camshaft bearing cover 100 provided by the present invention, the first intake camshaft bearing cover 11, the first exhaust camshaft bearing cover 12, the second intake camshaft bearing cover 13 and the second exhaust camshaft bearing cover 14 in the front end camshaft bearing cover 10 are integrally formed, and the reinforcing ribs 15 for fixing connection are provided at the connection of the first intake camshaft bearing cover 11 and the second intake camshaft bearing cover 13, the connection of the first exhaust camshaft bearing cover 12 and the second exhaust camshaft bearing cover 14, and the connection of the second intake camshaft bearing cover 13 and the second exhaust camshaft bearing cover 14. Set up in first intake camshaft bearing cap 11 and first exhaust camshaft bearing cap 12 integrated into one piece of first journal department to realize through strengthening rib 15 with the fixed connection of second intake camshaft bearing cap 13 and second exhaust camshaft bearing cap 14 that are located second journal department, consequently set up the strengthening rib 15 that is used for fixed connection between first journal and second journal, and realize through this strengthening rib 15 that four camshaft bearing caps's integrated into one piece is front end camshaft bearing cap 10.
Further, as shown in fig. 1 to 3, in the present embodiment, the integrated engine camshaft bearing cap 100 includes three third intake camshaft bearing caps 20, four intake camshaft bearing cap connection holes are provided on the intake bearing cap connection plate 40, and the intake bearing cap connection plate 40 fixes the second intake camshaft bearing cap 13 and the three third intake camshaft bearing caps 20 below the four intake camshaft bearing cap connection holes, respectively, by the connection members 60. One end of the air intake bearing cover connecting plate 40 is fixed on the second air intake camshaft bearing cover 13, and the three third air intake camshaft bearing covers 20 are distributed along the length direction of the air intake bearing cover connecting plate 40 and are arranged in one-to-one correspondence with the third journal, the fourth journal and the fifth journal of the camshaft on the engine, so that the three third air intake camshaft bearing covers 20 are respectively located at the journals of the three air intake camshafts.
Specifically, as shown in fig. 5, the third intake camshaft bearing cap 20 is provided with a pair of first mounting holes 21 through which the connecting member 60 can be inserted and an intake camshaft journal hole 22 matching with the intake camshaft journal. The first mounting hole 21 on one side of the third intake camshaft bearing cover 20 is communicated with the intake camshaft bearing cover connecting hole of the intake bearing cover connecting plate 40 and is locked on the cylinder cover, and the first mounting hole 21 on the other side is directly locked on the cylinder cover. The intake camshaft journal holes 22 on the third intake camshaft bearing cap 20 align with the journal holes provided on the cylinder head to form a complete journal hole.
Further, as shown in fig. 1 to 3, in the present embodiment, the integrated engine camshaft bearing cap 100 includes three third exhaust camshaft bearing caps 30, four exhaust camshaft bearing cap attachment holes are provided on the exhaust bearing cap attachment plate 50, and the exhaust bearing cap attachment plate 50 is used to lock and fix the second exhaust camshaft bearing cap 14 and the three third exhaust camshaft bearing caps 30 below the four exhaust camshaft bearing cap attachment holes by the connecting members 60, respectively. One end of the exhaust bearing cover connecting plate 50 is fixed to the second exhaust camshaft bearing cover 14, and three third exhaust camshaft bearing covers 30 are distributed along the length direction of the exhaust bearing cover connecting plate 50 and are arranged in one-to-one correspondence with third, fourth and fifth journals of a camshaft on the engine, so that the three third exhaust camshaft bearing covers 30 are respectively located at the journals of the three exhaust camshafts.
Specifically, as shown in fig. 6, the third exhaust camshaft bearing cover 30 is provided with a pair of second mounting holes 31 through which the connecting member 60 can be inserted and an exhaust camshaft journal hole 32 that is disposed to match the exhaust camshaft journal. The second mounting hole 31 of one side of the third exhaust camshaft bearing cap 30 is communicated with the exhaust camshaft bearing cap connecting hole of the exhaust bearing cap connecting plate 50 and locked to the cylinder head, and the second mounting hole 31 of the other side is directly locked to the cylinder head. The exhaust camshaft journal holes 22 on the third exhaust camshaft bearing cap 30 are aligned with the journal holes provided on the cylinder head to form a complete journal hole.
Specifically, the present invention provides a unitary engine camshaft bearing cap 100 in which all of the related connecting members 60 are bolts. In the installation process, an air inlet camshaft and an air outlet camshaft are placed on a cylinder cover, bearing cover positioning pins are pressed on the cylinder cover, then a front end camshaft bearing cover 10, three groups of third air inlet camshaft bearing covers 20 and three groups of third air outlet camshaft bearing covers 30 are respectively placed at corresponding camshaft journals, an air inlet bearing cover connecting plate 40 is placed on a second air inlet camshaft bearing cover 13 and three groups of third air inlet camshaft bearing covers 20 of the front end camshaft bearing cover 10, an air outlet bearing cover connecting plate 50 is placed on a second air outlet camshaft bearing cover 14 and three groups of third air outlet camshaft bearing covers 30 of the front end camshaft bearing cover 10, bolts penetrate through the air inlet bearing cover connecting plate 40, the exhaust bearing cap connecting plate 50 and each bearing cap mounting hole are locked and fixed to the cylinder head so that all the bearing caps are connected as a whole.
The utility model provides an integral engine camshaft bearing cap 100, will be located the first journal intake, exhaust camshaft bearing cap and be located the second journal intake, exhaust camshaft bearing cap four parts integration front end camshaft bearing cap 10, and through intake bearing cap connecting plate 40 and exhaust bearing cap connecting plate 50 with the third, fourth and fifth journal camshaft bearing cap and front end camshaft bearing cap 10 connection as an integrated structure, the simple structure of this connecting plate, the technology is convenient, need not to change the prerequisite of engine body structure, assemble the camshaft bearing caps of a plurality of journals as an integrated body, the mode and the dynamic stiffness of camshaft bearing cap have been improved remarkably, the frequency band that the camshaft bearing cap takes place the resonance moves backward, effectively reduce the half order "the rattle" that causes because of camshaft bearing cap dynamic stiffness is not enough, the acoustic quality of the engine is greatly improved.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An integral engine camshaft bearing cap comprising a front end camshaft bearing cap, a plurality of third intake camshaft bearing caps and a plurality of third exhaust camshaft bearing caps, said front end camshaft bearing cap comprising a first intake camshaft bearing cap and a first exhaust camshaft bearing cap at a first journal and a second intake camshaft bearing cap and a second exhaust camshaft bearing cap at a second journal; the exhaust camshaft structure is characterized by further comprising a plurality of air inlet bearing cover connecting plates fixedly connected with the third air inlet camshaft bearing cover and the second air inlet camshaft bearing cover and a plurality of exhaust bearing cover connecting plates fixedly connected with the third exhaust camshaft bearing cover and the second exhaust camshaft bearing cover, wherein the air inlet bearing cover connecting plates and the exhaust bearing cover connecting plates are arranged in parallel on the same side of the front end camshaft bearing cover.
2. A unitary engine camshaft bearing cap as claimed in claim 1 wherein said first intake camshaft bearing cap, said first exhaust camshaft bearing cap, said second intake camshaft bearing cap and said second exhaust camshaft bearing cap are integrally formed.
3. An integrated engine camshaft bearing cap as claimed in claim 2, wherein reinforcing ribs for fixed connection are provided at the junction of the first intake camshaft bearing cap and the second intake camshaft bearing cap, the junction of the first exhaust camshaft bearing cap and the second exhaust camshaft bearing cap, and the junction of the second intake camshaft bearing cap and the second exhaust camshaft bearing cap.
4. An integral engine camshaft bearing cap as claimed in claim 1 comprising three third intake camshaft bearing caps, said intake bearing cap attachment plate having four intake camshaft bearing cap attachment holes formed therein.
5. An integrated engine camshaft bearing cap as claimed in claim 4 wherein the intake bearing cap connecting plate fixes the second intake camshaft bearing cap and the third intake camshaft bearing cap below four intake camshaft bearing cap attachment holes, respectively, by connecting members.
6. An integrated engine camshaft bearing cap as claimed in claim 5 wherein the third intake camshaft bearing cap is provided with a pair of first mounting holes for the attachment member to pass through and an intake camshaft journal hole for mating with the intake camshaft journal.
7. An integral engine camshaft bearing cap as claimed in claim 5 including three third exhaust camshaft bearing caps, said exhaust bearing cap attachment plate having four exhaust camshaft bearing cap attachment holes.
8. An integral engine camshaft bearing cap as claimed in claim 7 wherein said exhaust bearing cap attachment plate lockingly secures said second exhaust camshaft bearing cap and three of said third exhaust camshaft bearing caps, respectively, under four of said exhaust camshaft bearing cap attachment holes by means of attachment members.
9. An integrated engine camshaft bearing cap as claimed in claim 7 wherein the third exhaust camshaft bearing cap is provided with a pair of second mounting holes through which the connecting member is inserted and an exhaust camshaft journal hole which is disposed to match the exhaust camshaft journal.
10. A unitary engine camshaft bearing cap as claimed in any one of claims 5, 6, 8, 9 wherein said connecting member is a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020015645.3U CN211573652U (en) | 2020-01-03 | 2020-01-03 | Integral engine camshaft bearing cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020015645.3U CN211573652U (en) | 2020-01-03 | 2020-01-03 | Integral engine camshaft bearing cap |
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| Publication Number | Publication Date |
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| CN211573652U true CN211573652U (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020015645.3U Active CN211573652U (en) | 2020-01-03 | 2020-01-03 | Integral engine camshaft bearing cap |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046192A (en) * | 2021-11-26 | 2022-02-15 | 中国北方发动机研究所(天津) | Lightweight cam bearing cap structure |
-
2020
- 2020-01-03 CN CN202020015645.3U patent/CN211573652U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046192A (en) * | 2021-11-26 | 2022-02-15 | 中国北方发动机研究所(天津) | Lightweight cam bearing cap structure |
| CN114046192B (en) * | 2021-11-26 | 2023-07-25 | 中国北方发动机研究所(天津) | Lightweight cam bearing cover structure |
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