CN218894690U - Lubricating structure of rocker arm assembly of diesel engine - Google Patents
Lubricating structure of rocker arm assembly of diesel engine Download PDFInfo
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- CN218894690U CN218894690U CN202320165197.9U CN202320165197U CN218894690U CN 218894690 U CN218894690 U CN 218894690U CN 202320165197 U CN202320165197 U CN 202320165197U CN 218894690 U CN218894690 U CN 218894690U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model relates to the technical field of diesel engines and discloses a lubricating structure of a rocker arm assembly of a diesel engine, which comprises a bolt mounting hole arranged on a cylinder body and a cylinder cover, wherein a bolt is arranged in the bolt mounting hole to connect the cylinder body and the cylinder cover, the bolt mounting hole comprises a communicating section and a connecting section positioned on the cylinder body, the bolt is in threaded connection with the connecting section, a gap is arranged between the bolt and the communicating section, a first lubricating oil duct is formed between the bolt and the communicating section, one end of the first lubricating oil duct is communicated with a second lubricating oil duct arranged on a cylinder cover, the other end of the first lubricating oil duct is communicated with a cylinder body oil duct arranged on the cylinder body, the other end of the second lubricating oil duct is communicated with the rocker arm assembly, the other end of the cylinder body oil duct is communicated with a main lubricating oil duct on the cylinder body, and the first lubricating oil duct for lubricating oil is used between the cylinder cover and the cylinder body by utilizing the bolt mounting hole between the cylinder cover, so that the structure of a lug is additionally arranged on the cylinder cover is avoided, and the influence on the internal structure of the cylinder cover is reduced.
Description
Technical Field
The utility model relates to the technical field of diesel engines, in particular to a lubricating structure of a rocker arm assembly of a diesel engine.
Background
In the manufacturing process of the existing diesel engine, a lug provided with a lubricating oil duct is required to be arranged on a cylinder body independently, and a mounting groove matched with the lug is arranged on a cylinder cover, so that lubricating oil can flow to a rocker arm assembly at the top of the cylinder cover through the lubricating oil duct arranged on the lug to perform a lubricating function;
but be provided with cooling jacket, air flue in the cylinder cap inside, cylinder cap bolt lug and structure such as sprayer installation lug lead to being provided with the lug of lubrication oil duct and influence cylinder cap inner structure, lead to the inside rivers of cylinder cap and the circulation efficiency of air current to receive the influence.
Disclosure of Invention
The utility model aims to provide a lubricating structure of a rocker arm assembly of a diesel engine, which aims to avoid unnecessary influence of a lubricating oil duct on the internal structure of a cylinder cover.
The utility model is realized by the following technical scheme: the utility model provides a diesel engine rocking arm subassembly lubricating structure, includes the bolt mounting hole that sets up on cylinder body and cylinder cap, installs the bolt in the bolt mounting hole and is connected cylinder body and cylinder cap, the bolt mounting hole includes the linkage segment and is located the linkage segment on the cylinder body, be threaded connection between bolt and the linkage segment, be provided with the clearance between bolt and the linkage segment, make form first lubrication oil duct between bolt and the linkage segment, first lubrication oil duct one end and the second lubrication oil duct intercommunication that sets up on with the cylinder cap, the other end and the cylinder body oil duct intercommunication of setting on the cylinder body, the second lubrication oil duct other end communicates to the rocking arm subassembly, the lubrication oil main oil duct intercommunication on cylinder body oil duct other end and the cylinder body.
In order to avoid the influence of the lubricating oil duct lugs in the existing diesel engine structure on other structures in the cylinder cover, the bolt mounting holes between the cylinder cover and the cylinder body are utilized for lubricating oil ducts of lubricating oil, gaps are formed between the communicating sections and the bolts, the gaps are first lubricating oil ducts, and two ends of the first lubricating oil ducts are respectively communicated with the second lubricating oil duct on the cylinder cover and the cylinder body oil duct on the cylinder body, so that the structure of adding lugs on the cylinder cover is avoided, the influence on the internal structure of the cylinder cover is reduced, and meanwhile, the additional lubricating oil duct processing procedures can be reduced in the cylinder cover processing process, and the production efficiency is improved.
In order to better realize the utility model, a connecting channel is further arranged between the first lubricating oil channel and the cylinder body oil channel, and the connecting channel is respectively communicated with the first lubricating oil channel and the cylinder body oil channel.
In the utility model, in the process of lubricating oil flowing into a first lubricating oil duct through the cylinder body oil duct, the cross section area of the first lubricating oil duct is changed greatly relative to the cylinder body oil duct, so that the problem that the lubricating oil flows inauguratively is possibly caused.
In order to better realize the utility model, further, the connecting channel is a first groove arranged on the end surface of one end matched with the cylinder cover and the cylinder body, and one side of the first groove is an opening structure connected with the first lubricating oil duct.
In order to better realize the utility model, further, one end of the communicating section extends to the cylinder body, and the connecting channel is communicated with a first lubricating oil duct positioned on the cylinder body.
According to the utility model, the first groove is arranged on the end face of one end of the cylinder cover matched with the cylinder body, so that the working procedure of an operator on the first groove is facilitated, and the production efficiency is improved.
In order to better realize the utility model, the connecting channel further comprises a second groove arranged on the end face of one end matched with the cylinder body and the cylinder cover, and the second groove is provided with an opening structure connected with the first lubricating oil duct at one side.
According to the utility model, the sum setting position of the connecting channels is properly adjusted according to different structures at the connecting positions of the cylinder cover and the cylinder body, so that the influence of the connecting section on other structures inside the cylinder body and the cylinder cover is reduced as much as possible.
In order to better realize the utility model, further, the containing cavity comprises a first concave arranged on the cylinder cover and a second concave arranged on the cylinder body, and openings of the first concave and the second concave on the butt joint end face between the cylinder cover and the cylinder body are matched and communicated with each other.
According to the utility model, the setting position of the containing cavity is properly regulated according to the structural change of the connecting position between the cylinder cover and the cylinder body, so that the influence of a lubricating oil pipeline comprising the containing cavity on the cylinder body and other structural parts in the cylinder cover is reduced as much as possible.
In order to better realize the utility model, the communication section is in a light hole structure.
In order to better realize the utility model, further, the part of the bolt positioned at the communicating section is of a polished rod structure.
In the utility model, the surfaces of the communication section and the corresponding communication section on the bolt are both provided with smooth walls, so that the flow efficiency of lubricating oil in the first lubricating oil duct is improved.
In order to better realize the utility model, further, the second lubricating oil duct is of a through hole structure with one end extending to the cylinder cover side end face, and a plug is arranged at one end, corresponding to the cylinder cover side end face, of the second lubricating oil duct.
In the utility model, in order to facilitate the processing procedure of the second lubricating oil duct, one end face of the second lubricating oil duct is extended to the cylinder cover side end face, so that the processing operation of the second lubricating oil duct is facilitated, and the through hole of the cylinder cover side end face is provided with the plug, so that the leakage of lubricating oil is prevented.
Compared with the prior art, the utility model has the following advantages:
(1) According to the utility model, the bolt mounting holes between the cylinder cover and the cylinder body are used for lubricating oil channels of lubricating oil, a gap is arranged between the communicating section and the bolt, the gap is a first lubricating oil channel, and two ends of the first lubricating oil channel are respectively communicated with a second lubricating oil channel on the cylinder cover and a cylinder body oil channel on the cylinder body, so that a structure of adding a lug on the cylinder cover is avoided, the influence on the internal structure of the cylinder cover is reduced, and meanwhile, the additional lubricating oil channel processing procedures can be reduced in the cylinder cover processing process, and the production efficiency is improved.
(2) In the process that the lubricating oil flows into the first lubricating oil duct through the cylinder body oil duct, the cross-sectional area of the first lubricating oil duct is relatively changed greatly, and the problem that the lubricating oil is possibly not smooth is solved.
(3) According to the different structures of the connecting positions between the cylinder cover and the cylinder body, the setting positions of the connecting channels are properly adjusted, and the influence of the connecting sections on other structures inside the cylinder body and the cylinder cover is reduced as much as possible.
Drawings
The utility model is further described with reference to the following drawings and examples, and all inventive concepts of the utility model are to be considered as being disclosed and claimed.
Fig. 1 is a schematic structural view of one embodiment of a lubricating structure of a rocker arm assembly of a diesel engine on a cylinder body and a cylinder cover in the utility model.
Fig. 2 is a schematic view of another view structure in fig. 1.
Fig. 3 isbase:Sub>A schematic cross-sectional view of the structure atbase:Sub>A-base:Sub>A in fig. 2.
Fig. 4 is a schematic view of another view structure in fig. 1.
Fig. 5 is a schematic view of a sectional structure at the B-B position in fig. 4.
Wherein: 1-a cylinder cover; 2-a cylinder; 3-bolts; 101-a first lubrication oil passage; 102-a second lubrication oil passage; 103-a first groove; 201-a connection section; 202-cylinder oil duct; 203-second grooves.
Detailed Description
Example 1:
the embodiment of the lubricating structure for the rocker arm assembly of the diesel engine is shown in fig. 1, the lubricating structure comprises a bolt mounting hole formed in a cylinder body 2 and a cylinder cover 1, a bolt 3 is mounted in the bolt mounting hole to connect the cylinder body 2 and the cylinder cover 1, the bolt mounting hole comprises a connecting section 201 and a connecting section 201 positioned on the cylinder body 2, the bolt 3 is in threaded connection with the connecting section 201, a gap is formed between the bolt 3 and the connecting section, a first lubricating oil duct 101 is formed between the bolt 3 and the connecting section, one end of the first lubricating oil duct 101 is communicated with a second lubricating oil duct 102 arranged on the cylinder cover 1, the other end of the first lubricating oil duct is communicated with a cylinder body oil duct 202 arranged on the cylinder body 2, the other end of the second lubricating oil duct 102 is communicated with the rocker arm assembly, and the other end of the cylinder body oil duct 202 is communicated with a lubricating oil main duct on the cylinder body 2.
Further, a connection channel is provided between the first lubrication oil channel 101 and the cylinder oil channel 202, and the connection channel is respectively communicated with the first lubrication oil channel 101 and the cylinder oil channel 202.
Further, one end of the communicating section extends to the cylinder 2, and the connecting channel communicates with the first lubrication oil passage 101 located on the cylinder 2.
Further, the connecting channel comprises a first groove 103 arranged on an end face of one end of the cylinder cover 1 matched with the cylinder body 2 and a second groove 203 arranged on an end face of one end of the cylinder body 2 matched with the cylinder cover 1, one end of the communicating section extends to the cylinder body 2, the first groove 103 and the second groove 203 are communicated with the communicating section, and openings of the first groove 103 and the second groove 203 on the matched end faces of the cylinder cover 1 and the cylinder body 2 are matched with each other and are communicated with each other.
Further, the communication section is of a light hole structure.
Further, the part of the bolt 3 located at the communicating section is of a polished rod structure.
Further, the second lubrication oil duct 102 is a through hole structure with one end extending to the side end surface of the cylinder cover 1, and a plug is disposed at one end of the second lubrication oil duct 102 corresponding to the side end surface of the cylinder cover 1.
In the use process of the embodiment, the lubricating oil flows through the main lubricating oil duct 202 on the cylinder body 2 and flows into the connecting channel, the connecting channel comprises a first groove 103 and a second groove 203 which are arranged on the cylinder body 2 and the cylinder cover 1, the connecting channel formed by combining the first groove 103 and the second groove 203 changes the hydraulic pressure of the lubricating oil by reducing the change of the channel section of the lubricating oil in the process of flowing into the first lubricating oil duct 101, so that the flow rate of the lubricating oil changes, the lubricating oil cannot be ensured to form a good lubricating effect on a rocker arm assembly on the cylinder cover 1, the hydraulic pressure change of the lubricating oil is controlled according to the size of a containing cavity of the connecting channel, and meanwhile, the gap between the outer walls of the bolts 3 with the inner diameters of the bolt mounting holes is adjusted, so that the lubricating oil supply to the rocker arm assembly is kept stable, and a good lubricating effect is formed on the rocker arm assembly;
further, in order to avoid the first groove 103 and the second groove 203 from affecting other structures in the cylinder cover 1 and the cylinder body 2, the first groove 103 and the second groove 203 may be selectively arranged according to the layout of other structures in the cylinder cover 1 and the cylinder body 2, so as to ensure that the working efficiency of each structural member in the cylinder cover 1 and the cylinder body 2 is maximized.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way, and any simple modification and equivalent variation of the above embodiment according to the technical matter of the present utility model falls within the scope of the present utility model.
Claims (8)
1. The utility model provides a diesel engine rocking arm subassembly lubricating structure, its characterized in that includes the bolt mounting hole that sets up on cylinder body (2) and cylinder cap (1), installs bolt (3) in the bolt mounting hole and is connected cylinder body (2) and cylinder cap (1), the bolt mounting hole includes intercommunication section and is located linkage segment (201) on cylinder body (2), threaded connection between bolt (3) and linkage segment (201), be provided with the clearance between bolt (3) and the linkage segment, make form first lubrication oil duct (101) between bolt (3) and the linkage segment, first lubrication oil duct (101) one end communicates with second lubrication oil duct (102) that set up on cylinder cap (1), and the other end communicates with cylinder body oil duct (202) that set up on cylinder body (2), second lubrication oil duct (102) other end communicates to rocking arm subassembly, the lubricating oil main oil duct intercommunication on cylinder body (202) other end and cylinder body (2).
2. The diesel engine rocker arm assembly lubrication structure according to claim 1, wherein a connecting passage is provided between the first lubrication oil passage (101) and the cylinder oil passage (202), and the connecting passage communicates with the first lubrication oil passage (101) and the cylinder oil passage (202), respectively.
3. The lubricating structure of the rocker arm assembly of the diesel engine according to claim 2, characterized in that the connecting channel is a first groove (103) arranged on an end face of one end of the cylinder cover (1) matched with the cylinder body (2), and the first groove (103) is an opening structure connected with the first lubricating oil duct (101) at one side.
4. A diesel engine rocker arm assembly lubrication structure according to claim 3, wherein one end of the communication section extends to the cylinder (2), and the connection passage communicates with a cylinder oil passage (202) provided in the cylinder (2).
5. The diesel engine rocker arm assembly lubrication structure according to claim 2, wherein the connecting passage includes a second groove (203) provided on an end face of the cylinder block (2) that is fitted between the cylinder head (1), the second groove (203) being an open structure to which the first lubrication oil passage (101) is connected on one side.
6. The diesel rocker arm assembly lubrication structure of claim 1 wherein the communication section is a smooth bore structure.
7. The lubricating structure of the rocker arm assembly of the diesel engine according to claim 1, characterized in that the portion of the bolt (3) located at the communicating section is a polish rod structure.
8. The lubricating structure of the rocker arm assembly of the diesel engine according to claim 1, wherein the second lubricating oil duct (102) is a through hole structure with one end extending to the side end face of the cylinder cover (1), and a plug is arranged at one end of the second lubricating oil duct (102) corresponding to the side end face of the cylinder cover (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320165197.9U CN218894690U (en) | 2023-02-09 | 2023-02-09 | Lubricating structure of rocker arm assembly of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320165197.9U CN218894690U (en) | 2023-02-09 | 2023-02-09 | Lubricating structure of rocker arm assembly of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218894690U true CN218894690U (en) | 2023-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320165197.9U Active CN218894690U (en) | 2023-02-09 | 2023-02-09 | Lubricating structure of rocker arm assembly of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218894690U (en) |
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2023
- 2023-02-09 CN CN202320165197.9U patent/CN218894690U/en active Active
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