CN210948824U - Camshaft bearing seat - Google Patents
Camshaft bearing seat Download PDFInfo
- Publication number
- CN210948824U CN210948824U CN201921788982.XU CN201921788982U CN210948824U CN 210948824 U CN210948824 U CN 210948824U CN 201921788982 U CN201921788982 U CN 201921788982U CN 210948824 U CN210948824 U CN 210948824U
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- Prior art keywords
- bearing seat
- cylinder cover
- bearing
- oil duct
- camshaft
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model discloses a camshaft bearing frame aims at providing a camshaft bearing frame of making conveniently. The bearing seat comprises a bearing seat body positioned on the upper part of a cylinder cover during assembly; the upper end of the bearing block body is provided with two camshaft bearing holes; the bearing seat body is provided with a positioning hole and a bolt hole for connecting a cylinder cover; a lubricating oil groove is formed in the hole wall of the camshaft bearing hole, a transverse bearing seat oil duct is arranged in the bearing seat body and below the lubricating oil groove, and two throttling holes which are communicated downwards are formed in the bearing seat oil duct; the lower port part of the throttling hole corresponds to an oil duct of a cylinder cover on the cylinder cover; the bearing seat oil duct is provided with two upper oil holes which are respectively communicated with the two lubricating oil grooves; one end of the bearing seat oil duct is communicated with the bearing seat oil duct, and a plug is arranged at the end of the bearing seat oil duct; when the bearing seat body is assembled with the cylinder cover, the top surface of the bearing seat body is coplanar with the top surface of the cylinder cover. The utility model discloses processing is simple, low in manufacturing cost.
Description
Technical Field
The utility model belongs to the technical field of the engine technique and specifically relates to a camshaft bearing frame is related to.
Background
Most of the existing camshaft bearing blocks of overhead camshaft engines adopt a vertical separation mode and are composed of an upper bearing cover and a lower bearing block. That is, a lower bearing seat is generally integrated on a cylinder head, and an upper bearing cover is fastened on the lower bearing seat by using bolts. For the camshaft bearing seat structure integrated with the cylinder cover, the design of a camshaft lubricating oil channel is difficult due to the fact that the bearing seat and the cylinder cover are large in size after integration, the cost for machining the lubricating oil channel is high, and the cylinder cover is difficult to cast. Meanwhile, the camshaft bearing seat structure can also affect the arrangement of the cylinder head bolts, sometimes the overlapping phenomenon of the bolt holes (such as the bolt holes for connecting the bearing cover) on the bearing seat and the positions of the cylinder head bolts can be caused, the length of the cylinder head is often required to be increased in order to prevent the overlapping problem of the bolt holes on the bearing seat and the positions of the cylinder head bolts, the overall weight and the length of the engine can be increased due to the increase of the length of the cylinder head, and the application range of the engine is further limited.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a purpose aims at overcoming the not enough of prior art existence, provides one kind and is convenient for process and installation, camshaft bearing frame that oil duct processing cost is low.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
a camshaft bearing seat is connected with a cylinder cover through a bolt and a positioning pin sleeve during assembly; the bearing seat body is positioned on the upper part of a cylinder cover during assembly; the upper end of the bearing block body is provided with two camshaft bearing holes; the bearing seat body is provided with a positioning hole and a bolt hole for connecting a cylinder cover; a lubricating oil groove is formed in the hole wall of the camshaft bearing hole, a transverse bearing seat oil duct is arranged in the bearing seat body and below the lubricating oil groove, and two throttling holes which are communicated downwards are formed in the bearing seat oil duct; the lower port part of the throttling hole corresponds to an oil duct of a cylinder cover on the cylinder cover; the bearing seat oil duct is provided with two upper oil holes which are respectively communicated with the two lubricating oil grooves; one end of the bearing seat oil duct is communicated with the bearing seat oil duct, and a plug is arranged at the end of the bearing seat oil duct; when the bearing seat body is assembled with the cylinder cover, the top surface of the bearing seat body is coplanar with the top surface of the cylinder cover.
Preferably, the number of the positioning holes on the bearing seat body is two.
Preferably, the number of the bolt holes on the bearing seat body is four.
Compared with the prior art, the utility model has the advantages of as follows:
(1) the utility model discloses a first shelves bearing frame of camshaft bearing frame mainly used camshaft, first shelves camshaft bearing frame separately design with all the other shelves camshaft bearing frames, all the other shelves camshaft bearing frame integrations are on the cylinder cap promptly, the utility model is used for first shelves camshaft bearing frame independently is an solitary part, and it is located cylinder cap upper portion, constitutes the lubricating oil passageway of the relevant spare part of cylinder cap system. This bearing frame processing is simple, and casting defect appears rarely, so manufacturing cost is low, can realize the low-cost processing of lubricating-oil duct, can avoid the big not enough of original integrated form manufacturing difficulty again.
(2) The utility model discloses an oil piping system can provide lubrication for spare parts such as variable valve timing system, camshaft, hydraulic tappet, fuel pump. Simultaneously, the cylinder cap bolt is located the below of this bearing frame body, through this kind of arrangement structure, can avoid the overlapping of cylinder cap bolt and the last bolt hole of camshaft bearing frame completely, then can effectively shorten the length of cylinder cap, and then shorten the length of whole engine.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention assembled with a cylinder head;
FIG. 2 is a schematic view of the lubrication circuit of FIG. 1;
in the figure, 1, a cylinder cover; 2. a bolt; 3. positioning a pin sleeve; 4. a bearing housing body; 5. a cylinder head bolt; 6. a lubricating oil groove; 7. a camshaft bearing bore; 8. an upper oil hole; 9. an orifice; 10. a cylinder head oil duct; 11. a bearing block oil passage; 12. an oil duct is arranged on the cylinder cover; 13. and (7) a plug.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention. In the following description, for the sake of clarity of illustrating the structure and operation of the present invention, reference will be made to the accompanying drawings by means of directional terms, but the terms "front", "rear", "left", "right", "up", "down", etc. should be construed as convenient terms and not as limitative terms.
The camshaft bearing block shown in fig. 1-2 is assembled by connecting a bolt 2 and a positioning pin sleeve 3 with a cylinder head 1; comprises a bearing seat body 4 positioned at the upper part of a cylinder cover 1 during assembly; the upper end of the bearing block body 4 is provided with two camshaft bearing holes 7; the bearing seat body 4 is provided with two positioning holes (not shown in the figure) for connecting the cylinder cover 1 and four bolt holes (not shown in the figure) for connecting the bolt sleeves 3 in a penetrating way; a lubricating oil groove 6 is formed in the hole wall of the camshaft bearing hole 7, a transverse bearing seat oil duct 11 is arranged in the bearing seat body 4 and below the lubricating oil groove 6, and two throttling holes 9 which penetrate downwards are formed in the bearing seat oil duct 11; the lower end opening part of the throttle hole 9 corresponds to a cylinder cover oil passage 10 on the cylinder cover 1; two oil feeding holes 8 which are respectively communicated with the two lubricating oil grooves 6 are formed in the bearing seat oil duct 11; one end of the bearing seat oil duct 11 is through and is provided with a plug 13; after the bearing seat body 4 is assembled with the cylinder cover 1, the top surface of the bearing seat body 4 is coplanar with the top surface of the cylinder cover 1.
When the bearing seat body 4 is assembled, the cylinder cover bolt 5 is screwed down, and then the bearing seat body 4 is fixed on the cylinder cover 1 by using the two positioning pin sleeves 3 and the four bolts 2. In operation, lubricating oil flows from the engine block into the cylinder head upper oil passage 12 and then into the bearing block oil passage 11. Lubricating oil enters the bearing seat oil duct 11 and then is divided into two paths, wherein one path of lubricating oil flows upwards through the upper oil hole 8 and then enters the lubricating oil groove 6 and the camshaft bearing hole 7 to provide lubrication for the camshaft and the variable valve timing system; the other path of the lubricating oil flows downwards through a throttling hole 9 to enter an oil duct 10 of a cylinder cover, and the lubricating oil is provided for parts such as a camshaft, a hydraulic tappet, a fuel pump and the like.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A camshaft bearing seat is connected with a cylinder cover through a bolt and a positioning pin sleeve during assembly; the method is characterized in that: the bearing seat body is positioned on the upper part of a cylinder cover during assembly; the upper end of the bearing block body is provided with two camshaft bearing holes; the bearing seat body is provided with a positioning hole and a bolt hole for connecting a cylinder cover; a lubricating oil groove is formed in the hole wall of the camshaft bearing hole, a transverse bearing seat oil duct is arranged in the bearing seat body and below the lubricating oil groove, and two throttling holes which are communicated downwards are formed in the bearing seat oil duct; the lower port part of the throttling hole corresponds to an oil duct of a cylinder cover on the cylinder cover; the bearing seat oil duct is provided with two upper oil holes which are respectively communicated with the two lubricating oil grooves; one end of the bearing seat oil duct is communicated with the bearing seat oil duct, and a plug is arranged at the end of the bearing seat oil duct; when the bearing seat body is assembled with the cylinder cover, the top surface of the bearing seat body is coplanar with the top surface of the cylinder cover.
2. The camshaft bearing support of claim 1, wherein: the bearing seat body is provided with two positioning holes.
3. A camshaft bearing support according to claim 1 or 2, wherein: the number of the bolt holes in the bearing seat body is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921788982.XU CN210948824U (en) | 2019-10-23 | 2019-10-23 | Camshaft bearing seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921788982.XU CN210948824U (en) | 2019-10-23 | 2019-10-23 | Camshaft bearing seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210948824U true CN210948824U (en) | 2020-07-07 |
Family
ID=71374271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921788982.XU Active CN210948824U (en) | 2019-10-23 | 2019-10-23 | Camshaft bearing seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210948824U (en) |
-
2019
- 2019-10-23 CN CN201921788982.XU patent/CN210948824U/en active Active
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