CN220134072U - Be used for diesel engine cylinder cap process hole shutoff structure - Google Patents
Be used for diesel engine cylinder cap process hole shutoff structure Download PDFInfo
- Publication number
- CN220134072U CN220134072U CN202321530150.4U CN202321530150U CN220134072U CN 220134072 U CN220134072 U CN 220134072U CN 202321530150 U CN202321530150 U CN 202321530150U CN 220134072 U CN220134072 U CN 220134072U
- Authority
- CN
- China
- Prior art keywords
- cover
- process hole
- cylinder cover
- diesel engine
- cylinder
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 61
- 230000008569 process Effects 0.000 title claims abstract description 58
- 230000000903 blocking effect Effects 0.000 claims description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model provides a be used for diesel engine cylinder cap process hole shutoff structure belongs to diesel engine technical field. The diesel engine cylinder cover is provided with a cylinder cover process hole, the cylinder cover process hole is plugged through a baffle cover, an annular groove used for limiting the baffle cover is formed in the inner circular surface of an outer port of the cylinder cover process hole, the baffle cover is arranged in the cylinder cover process hole, and the tail of the baffle cover is opened to be matched with the annular groove after being extruded. According to the utility model, only the structure of the process hole is changed, and the requirement on the manufacturing precision of the baffle cover is reduced on the premise of not changing the main structure of the cylinder cover, so that the aim of saving cost is fulfilled; and simultaneously, the sealing effect and the reliability of the process hole plugging are improved.
Description
Technical Field
The utility model belongs to the technical field of diesel engines, and particularly relates to a process hole plugging structure for a cylinder cover of a diesel engine.
Background
Because of the large number of inner cavities and the complex structure of the cylinder cover of the diesel engine, a plurality of process holes are required to be processed during casting, the process holes are required to be plugged after the cylinder cover is processed, and the process holes are mostly adopted to be plugged in a mode of directly installing a blocking cover or a screw plug at present.
When the screw plug is plugged, threads are required to be machined on the cylinder cover, so that certain requirements are met on the wall thickness of the hole body, and certain limitations are met when the screw plug is not applicable to certain thin-wall areas.
When the blocking cover is used for blocking the cylinder cover process hole, as shown in fig. 5, the requirement on the blocking cover manufacturing precision is higher, the blocking cover is difficult to install when the size precision is not proper, or the blocking cover flies out when the hydraulic test is carried out after the blocking cover is installed, the sealing effect can not be well achieved, the personal safety can be endangered, the blocking cover is formed by stamping a high-quality carbon structural steel sheet die, and the manufacturing qualification rate is lower. Therefore, the scheme provides improvement aiming at the blocking defect of the blocking cover.
Disclosure of Invention
The utility model solves the technical problems that: the utility model provides a process hole plugging structure for a cylinder cover of a diesel engine, which aims to reduce the requirement on the manufacturing precision of a baffle cover on the premise of only changing the process hole structure and not changing the main structure of the cylinder cover, thereby achieving the aim of saving the cost; and simultaneously, the sealing effect and the reliability of the process hole plugging are improved.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the plugging structure for the process hole of the diesel engine cylinder cover comprises a diesel engine cylinder cover, wherein the diesel engine cylinder cover is provided with the process hole of the cylinder cover, the process hole of the cylinder cover is plugged through a blocking cover, the inner circular surface of the outer port of the process hole of the cylinder cover is provided with a ring groove used for limiting the blocking cover, the blocking cover is arranged in the process hole of the cylinder cover, and the tail part of the blocking cover is opened to be matched with the ring groove after being extruded.
Further limiting the scheme, the groove section of the annular groove is of a V-shaped structure formed by a radial plane and an axial inclined plane, and the radial plane is close to the outer port of the cylinder cover process hole.
Further limiting the above scheme, the range of values of the dimension T of the radial plane is:
when the inner diameter phi of a cylinder cover process hole is more than or equal to 28mm, the dimension T of the radial plane is 0.3+0.1mm;
when the inner diameter phi of a cylinder cover process hole is more than or equal to 36mm, the dimension T of the radial plane is 0.4+0.1mm;
when the inner diameter phi of the cylinder cover process hole is more than or equal to 45mm, the dimension T of the radial plane is 0.5+0.1mm.
Further limiting the scheme, wherein the included angle between the axial inclined plane and the inner wall surface of the cylinder cover process hole is 10 degrees.
Further limiting the scheme, the baffle cover is made of a steel plate with good ductility.
Compared with the prior art, the utility model has the advantages that:
1. according to the scheme, the annular groove is processed on the inner wall of the process hole of the cylinder cover, after the baffle cover is mounted to the process hole, the tail part of the baffle cover is extruded by using a tool, so that the tail part of the baffle cover is opened to be matched with the annular groove, the tail part of the baffle cover is clamped in the annular groove, the baffle cover can be prevented from flying out, and the sealing reliability and safety are ensured; the problem that the retaining cover flies outwards under the action of pressure in the cavity is solved, the requirements on the wall thickness, the machining precision and the like of the retaining cover are reduced, the cost is reduced, and the requirement on the wall thickness of the bottom hole during installation of the screw plug is avoided.
2. In the scheme, the steel plate with good ductility is adopted in manufacturing of the retaining cover, so that breakage can be prevented when the tail part is extruded.
Drawings
FIG. 1 is a schematic diagram of the structure of a ring groove in a cylinder head process hole in the utility model;
FIG. 2 is an enlarged schematic view of the structure of portion B in FIG. 1 according to the present utility model;
FIG. 3 is a schematic view of the structure of the cover of the present utility model when installed;
FIG. 4 is an enlarged schematic view of the structure of portion C in FIG. 3 according to the present utility model;
fig. 5 is a view showing the mounting pattern of the original cover on the cylinder cover.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
Referring to fig. 1-4, embodiments of the present utility model are described in detail.
Examples: the plugging structure for the process holes of the cylinder cover of the diesel engine comprises a cylinder cover 1 of the diesel engine, wherein the cylinder cover process holes 2 are formed in the cylinder cover 1 of the diesel engine, the cylinder cover process holes 2 are plugged through a blocking cover 3, the outer port inner circular surface of the cylinder cover process holes 2 is provided with a ring groove 4 used for limiting the blocking cover 3, the blocking cover 3 is arranged in the cylinder cover process holes 2, the tail of the blocking cover 3 is opened to form fit with the ring groove 4 after being extruded, and the blocking cover 3 is shown in the figures 3 and 4.
In the general manufacturing process, the blocking is a cavity with pressure such as a water cavity, an air cavity and the like, when the blocking cover 3 is forced to move outwards, the tail part of the blocking cover is clamped in the annular groove 4, so that the blocking cover can be prevented from flying out, and the sealing reliability and safety are ensured.
In one embodiment, referring to fig. 2, the groove section of the ring groove 4 is a V-shaped structure formed by a radial plane 4-1 and an axial inclined plane 4-2, and the radial plane 4-1 is close to the outer port of the cylinder head process hole 2.
Preferably, the size T of the radial plane 4-1 is selected in the range of:
when the inner diameter phi of the cylinder cover process hole 2 is more than or equal to 28mm, the dimension T of the radial plane 4-1 is 0.3+0.1mm;
when the inner diameter phi of the cylinder cover process hole 2 is more than or equal to 36mm, the dimension T of the radial plane 4-1 is 0.4+0.1mm;
when the inner diameter phi of the cylinder cover process hole 2 is more than or equal to 45mm, the dimension T of the radial plane 4-1 is 0.5+0.1mm.
Preferably, the included angle between the axial inclined plane 4-2 and the inner wall surface of the cylinder cover process hole 2 is 10 degrees.
Preferably, the baffle cover 3 is made of a steel plate with good ductility, so that breakage can be prevented when the tail groove is extruded.
The utility model aims to change the structure of the process hole, solve the problem that the baffle cover flies outwards under the action of pressure in the cavity on the premise of not changing the main body structure of the cylinder cover, reduce the requirements on the wall thickness, the processing precision and the like of the baffle cover, reduce the cost and simultaneously avoid the requirement on the wall thickness of the bottom hole when the screw plug is installed.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. Be used for diesel engine cylinder cap process hole shutoff structure, including diesel engine cylinder cap (1), be equipped with cylinder cap process hole (2) on diesel engine cylinder cap (1), cylinder cap process hole (2) are shutoff through fender lid (3), its characterized in that: the cylinder cover is characterized in that an annular groove (4) used for limiting the blocking cover (3) is formed in the inner circular surface of the outer port of the cylinder cover process hole (2), the blocking cover (3) is arranged in the cylinder cover process hole (2), and the tail of the blocking cover (3) is expanded to be matched with the annular groove (4) after being extruded.
2. The plugging structure for process holes of a cylinder cover of a diesel engine according to claim 1, wherein: the groove section of the ring groove (4) is of a V-shaped structure formed by a radial plane (4-1) and an axial inclined plane (4-2), and the radial plane (4-1) is close to the outer port of the cylinder cover process hole (2).
3. The plugging structure for process holes of a cylinder cover of a diesel engine according to claim 2, wherein: the radial plane (4-1) has a dimension T in the range of values selected from:
when the inner diameter phi of the cylinder cover process hole (2) is more than or equal to 28mm, the dimension T of the radial plane (4-1) is 0.3+0.1mm;
when the inner diameter phi of the cylinder cover process hole (2) is more than or equal to 36mm, the dimension T of the radial plane (4-1) is 0.4+0.1mm;
when the inner diameter phi of the cylinder cover process hole (2) is more than or equal to 45mm, the dimension T of the radial plane (4-1) is 0.5+0.1mm.
4. The plugging structure for process holes of a cylinder cover of a diesel engine according to claim 3, wherein: the included angle between the axial inclined plane (4-2) and the inner wall surface of the cylinder cover process hole (2) is 10 degrees.
5. The plugging structure for process holes of a cylinder cover of a diesel engine according to claim 1, wherein: the baffle cover (3) is made of a steel plate with good ductility.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321530150.4U CN220134072U (en) | 2023-06-15 | 2023-06-15 | Be used for diesel engine cylinder cap process hole shutoff structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321530150.4U CN220134072U (en) | 2023-06-15 | 2023-06-15 | Be used for diesel engine cylinder cap process hole shutoff structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220134072U true CN220134072U (en) | 2023-12-05 |
Family
ID=88962919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321530150.4U Active CN220134072U (en) | 2023-06-15 | 2023-06-15 | Be used for diesel engine cylinder cap process hole shutoff structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220134072U (en) |
-
2023
- 2023-06-15 CN CN202321530150.4U patent/CN220134072U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220134072U (en) | Be used for diesel engine cylinder cap process hole shutoff structure | |
| CN103357691B (en) | The processing technology of threaded ball valve valve body | |
| CN202571958U (en) | Sheet part processing device | |
| CN211360214U (en) | On-shaft rib extruding tool for specific rotor shaft | |
| CN2908891Y (en) | Fitting pin | |
| CN214768858U (en) | Exhaust type special-shaped ejector rod sleeve | |
| CN202527505U (en) | Processing die of wide ball valve body | |
| CN210231228U (en) | Step bolt die | |
| CN200985836Y (en) | Forced cooling water pipe of cylinder head | |
| CN204209097U (en) | A kind of insert quick change construction on days of die casting | |
| JPH06179125A (en) | Special electrode for machining inner surface deformed hole | |
| CN210412367U (en) | DIN603 bolt mould | |
| CN210475379U (en) | Die for processing carriage bolt | |
| CN209920437U (en) | Injection mold core rod structure and injection mold | |
| CN221087229U (en) | Cylinder block mould exhaust structure | |
| CN217683212U (en) | Aircraft generator oil circuit fabrication hole shutoff end cap | |
| US6726217B1 (en) | Piston ring for the piston of an internal combustion engine | |
| CN215703286U (en) | Tire mold exhaust structure and tire mold | |
| CN218310704U (en) | Cavity exhaust needle for sand-lined metal mold casting process | |
| CN213107999U (en) | Structure of exhaust insert of injection mold | |
| CN215256551U (en) | Section shape of No. I pump upper body | |
| CN209971511U (en) | Inner sealing blowing device for irregular bottle mouth | |
| CN219900160U (en) | Sand core fixing piece with exhaust groove | |
| CN221134914U (en) | Clamping device for machining valve and precisely casting thin-wall sleeve | |
| CN104325576B (en) | Pattern block protective structure, pattern block and tire segmental mold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |