CN201232574Y - Camshaft bearing for automobile engine - Google Patents
Camshaft bearing for automobile engine Download PDFInfo
- Publication number
- CN201232574Y CN201232574Y CNU2008200502811U CN200820050281U CN201232574Y CN 201232574 Y CN201232574 Y CN 201232574Y CN U2008200502811 U CNU2008200502811 U CN U2008200502811U CN 200820050281 U CN200820050281 U CN 200820050281U CN 201232574 Y CN201232574 Y CN 201232574Y
- Authority
- CN
- China
- Prior art keywords
- bearing
- hole
- camshaft
- intake rocker
- oil duct
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000314 lubricant Substances 0.000 description 13
- 238000009826 distribution Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L2001/0476—Camshaft bearings
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model provides a camshaft bearing with simple manufacture and small size for an automotive engine. The camshaft bearing comprises a bearing seat and a bearing cover. The bottom of the bearing cover and the top of the bearing seat are provided with a semicircular groove. The bearing cover is fixedly buckled on the bearing seat to form a camshaft hole. The bearing cover comprises two primary bearing covers and a plurality of secondary bearing covers. The primary bearing covers and the secondary bearing covers are provided with an inlet port of an air inlet rocker shaft running from bottom to the air inlet rocker shaft and an oil duct communicating the inlet port of the air inlet rocker shaft and the camshaft hole. The middle of the bearing seat is provided with the oil duct of the inlet port of the air inlet rocker shaft communicating a cylinder block and the secondary bearing cover which is provided with the oil duct communicating an air let rocker shaft hole and an air outlet rocker shaft hole. The camshaft bearing of the utility model has the advantages of simple production technology and compact structure, which reduces size, weight and production cost greatly.
Description
Technical field
The utility model relates to the camshaft bearing that is used for motor car engine, particularly the camshaft bearing of valve overhead type motor.
Background technique
The distribution device of valve overhead type motor all is to be installed in the cylinder head top by some bolt, distribution device comprises camshaft, camshaft bearing and inlet and outlet rocking arm etc., wherein camshaft bearing comprises bearing support and bearing cap, camshaft is assemblied on the bearing support, and bearing cap is fixed on the bearing support top.Present bearing cap all is an integrative-structure, be cast with camshaft bearing hole on the bearing cap with the bearing support correspondence, bearing support is provided with the lubricant oil oilhole of a plurality of connection camshaft bearings and cylinder, increased the volume of camshaft bearing and motor like this, and the oilhole processing technology complexity on the bearing support, can increase a lot of manufacture costs.
The model utility content
The purpose of this utility model provides the camshaft bearing that processing is simple, volume is less that a kind of motor car engine is used.
Camshaft bearing of the present utility model comprises bearing support and bearing cap, described bearing cap bottom and bearing support top are provided with semicircular groove, bearing cap is fastened on bearing support, form camshaft hole, described bearing cap comprises main bearing cap and supplementary bearing lid, described main bearing cap and supplementary bearing lid are provided with by the bottom and connect to the intake rocker axle oil inlet hole at intake rocker axis hole place and the oil duct of connection intake rocker axle oil inlet hole and camshaft hole, described supplementary bearing lid also is provided with the oil duct that is communicated with intake rocker axis hole and exhaust rocker arm axis hole, and the middle part of described bearing support is provided with the oil duct of the intake rocker axle oil inlet hole that is communicated with cylinder block and supplementary bearing lid.
Main bearing cap and all supplementary bearing lids are installed on the bearing support, and the semicircular groove that bearing cap bottom and relevant position, bearing support top are provided with snaps together the formation camshaft hole, has guaranteed the coaxality of camshaft hole.
The middle part of cam shaft bearing support is provided with the oil duct that is communicated with the intake rocker axle oil inlet hole on cylinder block pair and the bearing cap, enter from the lubricant oil of cylinder block oilhole, enter the intake rocker axle oil inlet hole of the supplementary bearing lid that is positioned at the bearing support top then along oil duct from bearing support.The lubricant oil that enters the intake rocker axle oil inlet hole of supplementary bearing lid is divided into three the tunnel, and the oil of the first via enters camshaft hole along the oil duct between intake rocker axle oil inlet hole and the camshaft hole, lubricated corresponding camshaft bearing journal; The second tunnel oil upwards enters the intake rocker axis hole along intake rocker axle oil inlet hole, and two directions flow forwards, backwards, lubricated each intake rocker; The oil of Third Road enters the exhaust rocker arm axis hole along the oil duct between intake rocker axis hole and the exhaust rocker arm axis hole, and two directions flow forwards, backwards, lubricated each exhaust rocker arm.Middle part at the cam shaft bearing support is provided with oil duct, and lubricant oil is flowed along intake rocker axle and the axial front and back of exhaust rocker arm two directions, and the even of maximized assurance front end and back end lubricates.
Each supplementary bearing lid is provided with the oil duct that is communicated with intake rocker axis hole and exhaust rocker arm axis hole, the intake rocker axle at each supplementary bearing lid place and the lubricant oil on the exhaust rocker arm axle can flow mutually like this, make the distribution of lubricant oil more even, lubricated better effects if.
Main bearing cap and supplementary bearing lid are provided with the oil duct that is communicated with intake rocker axle oil inlet hole and camshaft hole, lubricant oil from the intake rocker axis hole just can enter camshaft hole by the oil duct between intake rocker axle oil inlet hole and the camshaft hole like this, lubricated corresponding camshaft bearing journal.
Two main bearing cap are installed in the axial two ends of bearing support, because this position is the end of oil circuit, the oil pressure difference of intake rocker axle and exhaust rocker arm axle is less, therefore need not the oil duct that is communicated with intake rocker axis hole and exhaust rocker arm axis hole is set, and has so further reduced the difficulty of processing.
Camshaft bearing of the present utility model is by being provided with an oil duct that is communicated with cylinder block and camshaft bearing in bearing support, oil duct that is communicated with intake rocker axis hole and exhaust rocker arm axis hole and the oil duct that is communicated with intake rocker axle oil inlet hole and camshaft hole are set in bearing cap, intake rocker axle, exhaust rocker arm axle and camshaft hole are lubricated oily supply.Camshaft bearing production technology of the present utility model is simple, and compact structure has reduced volume and weight greatly, has also reduced cost of production.
Description of drawings
Fig. 1 is the structural representation at bearing support middle part of embodiment's camshaft bearing;
Fig. 2 is the structural representation of main bearing cap of embodiment's camshaft bearing;
Fig. 3 is the structural representation that the supplementary bearing of embodiment's camshaft bearing covers;
Fig. 4 is the madial wall schematic representation of main bearing cap of embodiment's camshaft bearing.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
The camshaft bearing of present embodiment comprises bearing support 10 and bearing cap, described bearing cap bottom and relevant position, bearing support 10 top are provided with semicircular groove 30,31, bearing cap is fastened on bearing support 10, form camshaft hole 32, described bearing cap comprises two main bearing cap 20 and a plurality of supplementary bearing lid 21, described main bearing cap 20 and supplementary bearing lid 21 are provided with by the bottom and connect to the intake rocker axle oil inlet hole 22 at intake rocker axis hole 40 places and the oil duct 23 of connection intake rocker axle oil inlet hole 22 and camshaft hole 32, described supplementary bearing lid 21 also is provided with the oil duct 24 that is communicated with intake rocker axis hole 40 and exhaust rocker arm axis hole 50, and the middle part of described bearing support 10 is provided with the oil duct 11 of the intake rocker axle oil inlet hole 22 that is communicated with cylinder block and supplementary bearing lid 21.
The end face of the main bearing cap 20 of present embodiment and supplementary bearing lid 21 is provided with two arc grooves, after main bearing cap 20 and supplementary bearing lid 21 are installed on the bearing support 10, the groove of its end face has formed intake rocker axis hole 40 and exhaust rocker arm axis hole 50, can utilize bearing cap to support pitman arm shaft like this, save the space.
In order to strengthen lubricated to camshaft, the bearing support 10 of present embodiment also is provided with the oil duct 12 that is communicated with cylinder block and camshaft hole 32, and lubricant oil can directly flow to camshaft hole 32 in cylinder block.
As shown in Figure 4, the main bearing cap 20 of present embodiment also madial wall is provided with the axial limiting hole 70,71 of intake rocker axle and exhaust rocker arm axle, after like this main bearing cap 20 being installed in the axial two ends of bearing support 10, the spacing hole on the main bearing cap 20 just can limit moving axially of intake rocker axle and exhaust rocker arm axle.
The main bearing cap 20 of present embodiment and supplementary bearing lid 21 are fixed by bolts on the bearing support 10, in order to reduce the bolt hole on the bearing cap, intake rocker axle oil inlet hole 22 on the bearing cap can be used as a bolt hole, the bolt hole on each bearing cap can be reduced one like this.Described main bearing cap 20 is made of two different through holes of diameter with the oil inlet hole 22 that supplementary bearing covers 21 intake rocker axles, the diameter of the through hole 25 bottom being positioned at is greater than the diameter of the through hole 26 on its top, the diameter of through hole 26 approaches the diameter of bolt, be used for caging bolt, and the diameter of through hole 25 is greater than the diameter of bolt, after bolt was tightened, through hole 25 places can make things convenient for lubricant oil to enter into camshaft hole 32 by intake rocker axle oil inlet hole 22 and oil duct 23 like this.
The direction of the connection intake rocker axis hole 40 that the supplementary bearing lid 21 of present embodiment is provided with and the oil duct of exhaust rocker arm axis hole 50 is the oblique exhaust rocker arm axis hole 50 in through hole from intake rocker axle oil inlet hole 22 bottoms, oil duct is easy to process like this, can not be subjected to the restriction of camshaft hole 32, can also more easily lubricant oil be flowed to exhaust rocker arm axis hole 50 from intake rocker axis hole 40.
The direction of the connection intake rocker axis hole 40 that the main bearing cap 20 of present embodiment and supplementary bearing lid 21 are provided with and the oil duct of camshaft hole 32 is the through hole transverse cam axis hole 32 from intake rocker axle oil inlet hole 22 bottoms, the oil duct distance that is provided with like this is the shortest, can make lubricant oil flow to camshaft hole 32 from intake rocker axis hole 40 more easily.
The bearing support 10 and the cylinder head of present embodiment are set to integrative-structure, can reduce the volume and weight of whole motor like this.
In the time of engine operation, enter from the lubricant oil of cylinder block oilhole from bearing support 10, be divided into then twice, a curb the intake rocker axle oil inlet hole 22 that oil duct 11 enters the supplementary bearing lid 21 that is positioned at bearing support 10 tops, and another curb oil duct 12 and entered camshaft hole 32.The lubricant oil that enters the intake rocker axle oil inlet hole 22 of supplementary bearing lid 21 is divided into three the tunnel, and the oil of the first via enters camshaft hole 32 along the oil duct 23 between intake rocker axle oil inlet hole 22 and the camshaft hole 32, lubricated corresponding camshaft bearing journal; The second tunnel oil upwards enters intake rocker axis hole 40 along intake rocker axle oil inlet hole 22, and two directions flow forwards, backwards, lubricated each intake rocker; The oil of Third Road enters exhaust rocker arm axis hole 50 along the oil duct 24 between intake rocker axis hole 40 and the exhaust rocker arm axis hole 50, and two directions flow forwards, backwards, lubricated each exhaust rocker arm.
In light weight, the compact structure of camshaft bearing of the present utility model, and casting technique is simple, satisfying the high performance while of motor, has reduced cost of material, has reduced the space of motor peripheral disposition, has improved the cost performance of motor greatly.
Claims (8)
1, a kind of camshaft bearing of motor car engine, comprise bearing support and bearing cap, it is characterized in that described bearing cap bottom and bearing support top are provided with semicircular groove, bearing cap is fastened on bearing support, form camshaft hole, described bearing cap comprises main bearing cap and supplementary bearing lid, described main bearing cap and supplementary bearing lid are provided with by the bottom and connect to the intake rocker axle oil inlet hole at intake rocker axis hole place and the oil duct of connection intake rocker axle oil inlet hole and camshaft hole, described supplementary bearing lid also is provided with the oil duct that is communicated with intake rocker axis hole and exhaust rocker arm axis hole, and the middle part of described bearing support is provided with the oil duct of the intake rocker axle oil inlet hole that is communicated with cylinder block and supplementary bearing lid.
2, camshaft bearing according to claim 1 is characterized in that described bearing support also is provided with the oil duct that is communicated with cylinder block and camshaft hole.
3, camshaft bearing according to claim 1 is characterized in that described main bearing cap also is provided with the axial limiting hole of intake rocker axle and exhaust rocker arm axle.
4, camshaft bearing according to claim 1 and 2 is characterized in that described main bearing cap is made of two different through holes of diameter with the oil inlet hole of supplementary bearing lid intake rocker axle, and the diameter of the through hole bottom being positioned at is greater than the diameter of the through hole on its top.
5, camshaft bearing according to claim 4 is characterized in that the connection intake rocker axis hole that described main bearing cap and supplementary bearing lid is provided with and the direction of the oil duct of camshaft hole are the through hole transverse cam axis hole bottom intake rocker axle oil inlet hole.
6, camshaft bearing according to claim 5 is characterized in that the connection intake rocker axis hole that described supplementary bearing lid is provided with and the direction of the oil duct of exhaust rocker arm axis hole are the oblique exhaust rocker arm axis hole in through hole bottom intake rocker axle oil inlet hole.
7,, it is characterized in that the end face of described main bearing cap and supplementary bearing lid is provided with two arc grooves according to the described camshaft bearing of claim l.
8, camshaft bearing according to claim 1 and 2 is characterized in that described bearing support and cylinder head are structure as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200502811U CN201232574Y (en) | 2008-07-07 | 2008-07-07 | Camshaft bearing for automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200502811U CN201232574Y (en) | 2008-07-07 | 2008-07-07 | Camshaft bearing for automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201232574Y true CN201232574Y (en) | 2009-05-06 |
Family
ID=40618951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200502811U Expired - Fee Related CN201232574Y (en) | 2008-07-07 | 2008-07-07 | Camshaft bearing for automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201232574Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975096A (en) * | 2010-10-20 | 2011-02-16 | 奇瑞汽车股份有限公司 | First bearing cover of engine camshaft |
| CN103026013A (en) * | 2009-12-23 | 2013-04-03 | 阿马德奥·马蒂·卡沃内尔股份有限公司 | Improvements to the lubrication of the seats of a camshaft and a rocker-arm shaft in an internal combustion engine |
| CN103375210A (en) * | 2012-04-27 | 2013-10-30 | 安徽华菱汽车有限公司 | Engine and support for cam shaft and rocker shaft |
| CN111648834A (en) * | 2020-06-22 | 2020-09-11 | 东风商用车有限公司 | Camshaft seat assembly and bearing seat assembly group |
| CN111648835A (en) * | 2020-06-22 | 2020-09-11 | 东风商用车有限公司 | Camshaft seat assembly and bearing seat assembly group |
-
2008
- 2008-07-07 CN CNU2008200502811U patent/CN201232574Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103026013A (en) * | 2009-12-23 | 2013-04-03 | 阿马德奥·马蒂·卡沃内尔股份有限公司 | Improvements to the lubrication of the seats of a camshaft and a rocker-arm shaft in an internal combustion engine |
| CN103026013B (en) * | 2009-12-23 | 2015-10-07 | 阿马德奥·马蒂·卡沃内尔股份有限公司 | For the device of the lubrication of the camshaft base in internal-combustion engine and pitman arm shaft base |
| CN101975096A (en) * | 2010-10-20 | 2011-02-16 | 奇瑞汽车股份有限公司 | First bearing cover of engine camshaft |
| CN101975096B (en) * | 2010-10-20 | 2014-04-02 | 奇瑞汽车股份有限公司 | First bearing cover of engine camshaft |
| CN103375210A (en) * | 2012-04-27 | 2013-10-30 | 安徽华菱汽车有限公司 | Engine and support for cam shaft and rocker shaft |
| CN103375210B (en) * | 2012-04-27 | 2016-01-27 | 安徽华菱汽车有限公司 | The support of motor and camshaft and pitman arm shaft |
| CN111648834A (en) * | 2020-06-22 | 2020-09-11 | 东风商用车有限公司 | Camshaft seat assembly and bearing seat assembly group |
| CN111648835A (en) * | 2020-06-22 | 2020-09-11 | 东风商用车有限公司 | Camshaft seat assembly and bearing seat assembly group |
| CN111648835B (en) * | 2020-06-22 | 2021-05-11 | 东风商用车有限公司 | Camshaft seat assembly and bearing seat assembly group |
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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: 20090506 Termination date: 20130707 |