CN110439703B - Vermicular graphite cast iron cylinder cover for automobile engine - Google Patents
Vermicular graphite cast iron cylinder cover for automobile engine Download PDFInfo
- Publication number
- CN110439703B CN110439703B CN201910816347.6A CN201910816347A CN110439703B CN 110439703 B CN110439703 B CN 110439703B CN 201910816347 A CN201910816347 A CN 201910816347A CN 110439703 B CN110439703 B CN 110439703B
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- Prior art keywords
- cylinder cover
- cylinder
- butt joint
- joint groove
- groove
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- 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.)
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- 229910001018 Cast iron Inorganic materials 0.000 title claims abstract description 30
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 3
- 229910002804 graphite Inorganic materials 0.000 title claims description 3
- 239000010439 graphite Substances 0.000 title claims description 3
- 210000001503 joint Anatomy 0.000 claims description 57
- 239000000463 material Substances 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 description 10
- 238000003032 molecular docking Methods 0.000 description 10
- 239000003921 oil Substances 0.000 description 10
- 238000009434 installation Methods 0.000 description 5
- 229910001060 Gray iron Inorganic materials 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 239000010705 motor oil Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
- F02F11/002—Arrangements of sealings in combustion engines involving cylinder heads
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a vermicular cast iron cylinder cover for an automobile engine, which comprises a cylinder cover component and a fastening component, wherein the front surface of the cylinder cover component is downwards butted with an engine cylinder in use, a plurality of groups of valve guide holes A and valve guide holes B are respectively arranged and are respectively connected with different oil pipes, the tightness degree of connection of the engine cylinder and a cylinder cover body is improved through the arrangement of an extension arm, a butting groove A and a butting groove B, the risk of oil leakage caused by the poor sealing of the engine cylinder is reduced, an outer sleeve is rotated by hand in use, the cylinder wall is driven to rotate by rotating the outer sleeve, an arc-shaped chute is also rotated along with the outer sleeve, a sliding block is in a spiral descending trend by the spiral structure of the chute, the top shaft is driven to inwards extrude, the bottom surface of the top shaft is tightly jointed with the engine cylinder, the cylinder cover body is driven to be separated from the engine cylinder by a reaction force in downward extrusion, the suction caused by internal and external pressure difference in no load of the cylinder is prevented, and the practicability is better.
Description
Technical Field
The invention relates to the technical field of automobile engines, in particular to a vermicular cast iron cylinder cover for an automobile engine.
Background
The cylinder cover is installed on the upper surface of the cylinder body, the cylinder is sealed from the upper portion and forms a combustion chamber, and the combustion chamber is always contacted with high-temperature high-pressure gas, so that the combustion chamber is subjected to great thermal load and mechanical load, a cooling water jacket is arranged in the cylinder cover of the water-cooled engine, a cooling water hole on the lower end surface of the cylinder cover is communicated with the cooling water hole of the cylinder body, circulating water is used for cooling high-temperature parts such as the combustion chamber, an air inlet valve seat, an air outlet valve seat, an air valve guide hole, an air inlet channel, an air outlet channel and the like are arranged on the cylinder cover. The cylinder cover of the gasoline engine is provided with a hole for installing a spark plug, the cylinder cover of the diesel engine is provided with a hole for installing an oil sprayer, and the cylinder cover of the overhead camshaft type engine is also provided with a camshaft bearing hole for installing a camshaft; the cylinder cover is a component part of the combustion chamber, the shape of the combustion chamber has great influence on the operation of the engine, the combustion modes of the gasoline engine and the diesel engine are different, the part of the cylinder cover of the combustion chamber is greatly different, the combustion chamber of the gasoline engine is mainly arranged on the cylinder cover, the combustion chamber of the diesel engine is mainly arranged in a pit at the top of the piston, the cylinder cover is generally cast by gray cast iron or alloy cast iron, and the aluminum alloy has good heat conductivity and is beneficial to improving the compression ratio.
The existing engine cylinder cover is made of gray cast iron materials, but the traditional gray cast iron cylinder cover cannot meet the requirements of high explosion pressure, high power density and light weight of a heavy diesel engine, and in the actual use process, when an engine cylinder is empty, pressure difference can be generated inside and outside the cylinder, the pressure difference can generally cause the cylinder cover to be closely adsorbed on the cylinder, the cylinder cover is difficult to take down during maintenance, the conveniently taken down cylinder cover is poor in tightness, oil leakage is easy to cause, and the practicability is poor.
Disclosure of Invention
In view of the above, it is desirable to provide a seal that improves the tightness by providing an extension arm and a docking groove a and a docking groove B, and reduces the risk of oil leakage of an engine cylinder due to a loose seal; the cylinder cover body is prevented from being adsorbed by suction force caused by pressure difference in the cylinder through the arrangement of the fastening component, so that the cylinder cover body is easy to assemble and disassemble, and the practicability is better; the vermicular cast iron cylinder cover is made of vermicular cast iron materials, has high tensile strength and elastic modulus, is light in weight, can bear higher explosion pressure and thermal cycle load, and has higher limit of crack resistance, and is used for an automobile engine.
The vermicular cast iron cylinder cover comprises a cylinder cover assembly and a fastening assembly, wherein the fastening assembly is fixedly connected with the cylinder cover assembly, the cylinder cover assembly comprises a valve mounting hole, a butt joint groove A, a butt joint groove B, a valve guide hole A, a valve guide hole B, a cylinder cover body, extension arms, a fastening hole, a butt joint groove C, a butt joint groove D and a pipeline mounting frame, the valve mounting hole is formed in a plurality of the valve mounting holes, the valve mounting holes are equidistantly formed in the outer wall of the top surface of the cylinder cover body, the fastening holes are formed in the outer walls of the two sides of the cylinder cover body, the inside of the fastening hole is fixedly connected with an automobile through a flange, the butt joint groove A and the butt joint groove B are fixedly arranged in the front outer wall of the cylinder cover body, the butt joint groove B is fixedly connected with the pipeline mounting frame, the pipeline mounting frame is provided with a plurality of valve guide holes A are formed in the inside of each pipeline mounting frame, the right side of each valve guide hole A is formed in the cylinder cover body, the valve guide hole B is formed in the cylinder cover body, the front surface of the cylinder cover body is symmetrically provided with two extension arms, the butt joint groove C and the butt joint groove D are fixedly mounted on the back surface of the cylinder cover body, and the fastening assembly is arranged between the butt joint groove C and the butt joint groove D;
the fastening assembly comprises an outer sleeve, a fastening bolt, an inner sleeve, a chassis piece and a top shaft, one end of the top shaft is movably sleeved in the cylinder cover body, the other end of the top shaft is fixedly sleeved in the chassis piece, the chassis piece comprises a connecting chassis, a central sleeve, a chassis wall and a sliding block, the inner wall of the central sleeve is fixedly connected with one end of the top shaft, the bottom surface of the central sleeve is fixedly arranged on the connecting chassis, the chassis wall is fixedly arranged on the outer edge of the connecting chassis, the outer wall of the chassis wall is fixedly connected with the sliding block, and the sliding block is clamped on the inner sleeve; the inner sleeve comprises a cylinder wall, a sliding groove and a bolt hole, the sliding block moves in the sliding groove, the sliding groove is processed on the cylinder wall, the bolt hole is fixedly arranged on the cylinder wall, the bolt hole is fixedly connected with a fastening bolt through an internal thread, the fastening bolt is installed on the outer sleeve, and the bottom surface of the outer sleeve is tightly attached to the cylinder cover body.
Preferably, the docking groove a is an arc groove, the docking groove B is a square groove, and the surface bulge degree of the docking groove B is greater than that of the docking groove a.
Preferably, the valve guide hole A and the valve guide hole B are positioned between the butt joint groove A and the butt joint groove B, and the opening directions of the valve guide hole A and the valve guide hole B are mutually perpendicular.
Preferably, the extension arms are arranged to be hollow semi-annular structures, and the two extension arms are fixed on the connecting surface of the cylinder cover body and the engine cylinder through shafts.
Preferably, the docking groove C is an arc groove, the docking groove D is a square groove, and the surface bulge degree of the docking groove D is greater than the surface bulge degree of the docking groove C.
Preferably, the bottom surface of the top shaft is tightly attached to the engine cylinder.
Preferably, the sliding groove is a spiral arc groove.
Preferably, the cylinder cover assembly is made of vermicular cast iron material.
1. The vermicular cast iron cylinder cover for the automobile engine, when in use, the front surface of the cylinder cover assembly is downwards butted with the engine cylinder, the engine cylinder and the cylinder cover body are fixedly connected through the annular extension arm and the engine cylinder through the connecting shaft, the butting groove A and the butting groove B are respectively clamped with the engine cylinder, the tightness degree of connection between the engine cylinder and the cylinder cover body is jointly improved by matching the two extension arms, the tightness is improved, and the risk of oil leakage caused by loose sealing of the engine cylinder is reduced.
2. The vermicular cast iron cylinder cover for the automobile engine has the advantages that the outer walls of the two sides of the cylinder cover body are provided with the fastening holes, the inside of each fastening hole is fixedly connected with the automobile through the flange, the position stability of the engine cylinder is further guaranteed, and oil leakage caused by unstable installation positions of the engine cylinder is avoided.
3. The vermicular cast iron cylinder cover for the automobile engine is characterized in that the outer sleeve is rotated by hands during use, the top shaft is driven to be pulled out outwards or extruded inwards, the cylinder cover body is driven to be separated from the engine cylinder by the reaction force during downward extrusion, the cylinder cover can generate internal and external pressure difference during no-load of the cylinder, suction caused by the pressure difference is prevented from adsorbing the cylinder cover body, and the practicability is better.
4. The vermicular cast iron cylinder cover for the automobile engine is made of the vermicular cast iron material, the vermicular cast iron cylinder cover is high in tensile strength and elastic modulus, the vermicular cast iron cylinder cover with the same size and shape is light in weight, can bear higher explosion pressure and thermal cycle load, and is higher in crack resistance limit.
Drawings
FIG. 1 is a schematic view of the reverse side of a cylinder head assembly according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a front structure of a cylinder head assembly according to an embodiment of the present invention;
FIG. 3 is a schematic view of an outer sleeve according to an embodiment of the present invention;
FIG. 4 is a schematic view of an inner sleeve according to an embodiment of the present invention;
FIG. 5 is a schematic view of the connection of the inner sleeve and the base plate member according to an embodiment of the present invention;
fig. 6 is a schematic view of the chassis member structure according to the embodiment of the present invention.
In the figure: 1. a cylinder head assembly; 11. a valve mounting hole; 12. a butt joint groove A; 13. a butt joint groove B; 14. valve guide hole A; 15. valve guide hole B; 16. a cylinder head body; 17. an extension arm; 18. a fastening hole; 19. a butt joint groove C; 110. a butt joint groove D; 111. a pipe mounting rack; 2. a fastening assembly; 21. an outer sleeve; 22. a fastening bolt; 23. an inner sleeve; 231. a cylinder wall; 232. a chute; 233. bolt holes; 24. a chassis member; 241. the chassis is connected; 242. a central sleeve; 243. a chassis wall; 244. a slide block; 25. and (5) a top shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following describes a vermicular cast iron cylinder cover for an automobile engine in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1-2, a vermicular cast iron cylinder cover for an automobile engine comprises a cylinder cover component 1 and a fastening component 2, wherein the fastening component 2 is fixedly connected with the cylinder cover component 1, the cylinder cover component 1 is made of vermicular cast iron material, the cylinder cover component 1 comprises a valve mounting hole 11, a butt joint groove A12, a butt joint groove B13, a valve guide pipe hole A14, a valve guide pipe hole B15, a cylinder cover body 16, an extension arm 17, a fastening hole 18, a butt joint groove C19, a butt joint groove D110 and a pipeline mounting frame 111, the valve mounting hole 11 is provided in plurality, the valve mounting holes 11 are equidistantly processed on the outer wall of the top surface of the cylinder cover body 16, the outer walls of the two sides of the cylinder cover body 16 are respectively provided with the fastening holes 18, the inside of the fastening holes 18 is fixedly connected with the automobile through flanges, the outer wall of the front surface of the cylinder cover body 16 is fixedly provided with the butt joint groove A12 and the butt joint groove B13, the butt joint groove A12 is provided with an arc groove, the butt joint groove B13 is provided with a square groove, the surface bulge degree of the butt joint groove B13 is larger than that of the butt joint groove A12, the butt joint groove B13 is fixedly connected with the pipeline installation frame 111, the pipeline installation frame 111 is provided with a plurality of air valve guide pipe holes A14 which are processed in the pipeline installation frame 111, an air valve guide pipe hole B15 which is processed on the right side of each air valve guide pipe hole A14 is positioned between the butt joint groove A12 and the butt joint groove B13, the air valve guide pipe hole A14 and the air valve guide pipe hole B15 are mutually perpendicular to each other in the opening direction, the air valve guide pipe hole B15 is arranged on the cylinder cover body 16, two extension arms 17 are symmetrically arranged on the front side of the cylinder cover body 16, the extension arms 17 are arranged into a hollow semi-ring structure, the two extension arms 17 are fixed on the connecting surface of the cylinder cover body 16 and the engine cylinder through shafts, the butt joint groove C19 and the butt joint groove D110 are fixedly arranged on the back side of the cylinder cover body 16, the butt joint groove C19 is arranged into an arc groove, the butt joint groove D110 is arranged as a square groove, the surface bulge degree of the butt joint groove D110 is larger than that of the butt joint groove C19, and the fastening assembly 2 is arranged between the butt joint groove C19 and the butt joint groove D110.
Referring to fig. 3-6, the fastening assembly 2 includes an outer sleeve 21, a fastening bolt 22, an inner sleeve 23, a chassis member 24 and a top shaft 25, one end of the top shaft 25 is movably sleeved in the cylinder cover 16, the bottom surface of the top shaft 25 is tightly attached to an engine cylinder, the other end of the top shaft 25 is fixedly sleeved in the chassis member 24, the chassis member 24 includes a connecting chassis 241, a central sleeve 242, a chassis wall 243 and a sliding block 244, the inner wall of the central sleeve 242 is fixedly connected with one end of the top shaft 25, the bottom surface of the central sleeve 242 is fixedly mounted on the connecting chassis 241, the outer edge of the connecting chassis 241 is fixedly provided with a chassis wall 243, the outer wall of the chassis wall 243 is fixedly connected with the sliding block 244, and the sliding block 244 is clamped on the inner sleeve 23; the inner sleeve 23 comprises a cylinder wall 231, a sliding groove 232 and a bolt hole 233, the sliding block 244 moves in the sliding groove 232, the sliding groove 232 is provided with a spiral arc-shaped groove, the sliding groove 232 is processed on the cylinder wall 231, the cylinder wall 231 is fixedly provided with the bolt hole 233, the bolt hole 233 is fixedly connected with the fastening bolt 22 through an internal thread, the fastening bolt 22 is installed on the outer sleeve 21, and the bottom surface of the outer sleeve 21 is tightly attached to the cylinder cover body 16.
Working principle: when in use, the front surface of the cylinder cover component 1 is downward butted with an engine cylinder, a plurality of groups of valve guide pipe holes A14 and valve guide pipe holes B15 are respectively arranged and are respectively connected with different oil pipes, two extension arms 17 after being butted are respectively positioned at two sides of the engine cylinder, the two extension arms 17 penetrate through the annular extension arms 17 and the engine cylinder through connecting shafts to realize the fixed connection of the engine cylinder and the cylinder cover body 16, a butting groove A12 and a butting groove B13 are respectively clamped with the engine cylinder, the outer walls of two sides of the cylinder cover body 16 are respectively provided with a fastening hole 18, the inside of the fastening hole 18 is fixedly connected with an automobile through a flange, one end of a jacking shaft 25 is movably sleeved in the cylinder cover body 16, the other end of the jacking shaft 25 is fixedly sleeved in a chassis component 24, the bottom surface of an outer sleeve 21 is tightly attached to the cylinder cover body 16, when the cylinder is used, the outer sleeve 21 is rotated by hand, the outer sleeve 21 is fixedly connected with the cylinder wall 231 through the fastening bolt 22, the outer sleeve 21 rotates to drive the cylinder wall 231 to rotate, a spiral arc-shaped chute 232 is machined on the cylinder wall 231, a sliding block 244 moves in the chute 232, when the cylinder wall 231 rotates, the arc-shaped chute 232 also rotates, namely the sliding block 244 clamped in the arc-shaped chute 232 moves along with the rotation under the drive of the side wall of the arc-shaped chute 232, the sliding block 244 is in a spiral lifting or descending trend when rotating due to the spiral structure of the chute 232, and the sliding block 244 is fixed with one end of the jacking shaft 25 to drive the jacking shaft 25 to be pulled outwards or extruded inwards, the bottom surface of the jacking shaft 25 is tightly attached to an engine cylinder, and the cylinder cover 16 is driven to be separated from the engine cylinder through a reaction force when the jacking downwards.
To sum up: the vermicular cast iron cylinder cover for the automobile engine, provided by the invention, is used for butting the front surface of the cylinder cover component 1 with an engine cylinder downwards, the valve guide pipe hole A14 and the valve guide pipe hole B15 are respectively provided with a plurality of groups and are respectively connected with different oil pipes, the two butted extension arms 17 are respectively positioned at two sides of the engine cylinder, the engine cylinder and the cylinder cover body 16 are fixedly connected through the annular extension arms 17 and the engine cylinder which pass through a connecting shaft, the butting groove A12 and the butting groove B13 are respectively clamped with the engine cylinder, the tightness of the connection of the engine cylinder and the cylinder cover body 16 is jointly improved by matching the two extension arms 17, the tightness is improved, the risk of oil leakage caused by the sealing of the engine cylinder is reduced, the outer walls at two sides of the cylinder cover body 16 are respectively provided with the fastening holes 18, the inside of the fastening holes 18 are fixedly connected with the automobile through flanges, the position stability of the engine cylinder is further ensured, the oil leakage caused by unstable installation position of the engine oil cylinder is avoided, one end of the top shaft 25 is movably sleeved in the cylinder cover body 16, the other end of the top shaft 25 is fixedly sleeved in the chassis part 24, the bottom surface of the outer sleeve 21 is tightly attached to the cylinder cover body 16, the outer sleeve 21 is rotated by hand during use, the outer sleeve 21 is fixedly connected with the cylinder wall 231 through the fastening bolt 22, the outer sleeve 21 rotates to drive the cylinder wall 231 to rotate, a spiral arc-shaped chute 232 is processed on the cylinder wall 231, a sliding block 244 moves in the chute 232, when the cylinder wall 231 rotates, the arc-shaped chute 232 also rotates along with the sliding block 244 clamped in the arc-shaped chute 232, namely, the sliding block 244 moves along with the side wall of the arc-shaped chute 232 under the drive of the spiral structure of the chute 232, so that the sliding block 244 is in a spiral lifting or descending trend during rotation, and because the sliding block 244 is fixed with one end of the top shaft 25, the top shaft 25 is driven to be pulled out outwards or extruded inwards, the bottom surface of the top shaft 25 is tightly attached to an engine oil cylinder, the cylinder cover body 16 is driven to be separated from the engine oil cylinder through a reaction force when the top shaft is extruded downwards, an internal-external pressure difference can be generated when the oil cylinder is empty, the suction force caused by the pressure difference is prevented from adsorbing the cylinder cover body 16, the practicability is better, the cylinder cover assembly 1 is made of vermicular cast iron materials, the tensile strength and the elastic modulus of vermicular cast iron are high, the vermicular cast iron cylinder cover of the same size and shape is light in weight, can bear higher burst pressure and thermal cycle load, and has higher limit of crack resistance.
The present invention is not limited to the above-mentioned embodiments, but is intended to be limited to the following embodiments, and any modifications, equivalent changes and variations in the above-mentioned embodiments can be made by those skilled in the art without departing from the scope of the present invention.
Claims (6)
1. The vermicular cast iron cylinder cover for the automobile engine comprises a cylinder cover assembly (1) and a fastening assembly (2), wherein the fastening assembly (2) is fixedly connected with the cylinder cover assembly (1), and is characterized in that: the cylinder cover assembly (1) comprises an air valve mounting hole (11), a butt joint groove A (12), a butt joint groove B (13), an air valve guide pipe hole A (14), an air valve guide pipe hole B (15), a cylinder cover body (16), an extension arm (17), a fastening hole (18), a butt joint groove C (19), a butt joint groove D (110) and a pipeline mounting frame (111), wherein the air valve mounting hole (11) is formed in a plurality of air valve mounting holes (11) at equal intervals, the fastening holes (18) are formed in the outer walls of the two sides of the cylinder cover body (16), the inside of the fastening holes (18) are fixedly connected with an automobile through a flange, the butt joint groove A (12) and the butt joint groove B (13) are fixedly arranged on the outer walls of the front side of the cylinder cover body (16), the butt joint groove B (13) are fixedly connected with the pipeline mounting frame (111), the pipeline mounting frame (111) is provided with a plurality of air valve guide pipe holes A (14) are formed in the inside of each pipeline mounting frame (111), the right side of each air valve guide pipe hole A (14) is formed in a plurality of air valve guide pipe holes B (15), the air valve guide pipe B (15) are formed in the cylinder cover body (16) and are symmetrically arranged on the two extension arms (16) and the front side of the cylinder cover body (16) and the cylinder cover body (17) is fixedly connected with the cylinder cover body (17), a fastening component (2) is arranged between the butt joint groove C (19) and the butt joint groove D (110);
the fastening assembly (2) comprises an outer sleeve (21), a fastening bolt (22), an inner sleeve (23), a chassis part (24) and a top shaft (25), one end of the top shaft (25) is movably sleeved in the cylinder cover body (16), the other end of the top shaft (25) is fixedly sleeved in the chassis part (24), the chassis part (24) comprises a connecting chassis (241), a central sleeve (242), a chassis wall (243) and a sliding block (244), the inner wall of the central sleeve (242) is fixedly connected with one end of the top shaft (25), the bottom surface of the central sleeve (242) is fixedly arranged on the connecting chassis (241), the outer edge of the connecting chassis (241) is fixedly provided with a chassis wall (243), the outer wall of the chassis wall (243) is fixedly connected with the sliding block (244), and the sliding block (244) is clamped on the inner sleeve (23); the inner sleeve (23) comprises a cylinder wall (231), a sliding groove (232) and a bolt hole (233), a sliding block (244) moves in the sliding groove (232), the sliding groove (232) is machined on the cylinder wall (231), the bolt hole (233) is fixedly arranged on the cylinder wall (231), the bolt hole (233) is fixedly connected with a fastening bolt (22) through an internal thread, the fastening bolt (22) is installed on the outer sleeve (21), and the bottom surface of the outer sleeve (21) is tightly attached to the cylinder cover body (16);
the butt joint groove A (12) is arranged as an arc groove, the butt joint groove B (13) is arranged as a square groove, and the surface bulge degree of the butt joint groove B (13) is larger than that of the butt joint groove A (12);
the valve guide pipe hole A (14) and the valve guide pipe hole B (15) are positioned between the butt joint groove A (12) and the butt joint groove B (13), and the opening directions of the valve guide pipe hole A (14) and the valve guide pipe hole B (15) are mutually perpendicular.
2. A vermicular cast iron cylinder head for an automotive engine of claim 1, wherein: the extension arms (17) are arranged to be hollow semi-annular structures, and the two extension arms (17) are fixed on the connecting surface of the cylinder cover body (16) and the engine cylinder through shafts.
3. A vermicular cast iron cylinder head for an automotive engine of claim 1, wherein: the butt joint groove C (19) is arranged to be an arc groove, the butt joint groove D (110) is arranged to be a square groove, and the surface bulge degree of the butt joint groove D (110) is larger than that of the butt joint groove C (19).
4. A vermicular cast iron cylinder head for an automotive engine of claim 1, wherein: the bottom surface of the top shaft (25) is tightly attached to the engine cylinder.
5. A vermicular cast iron cylinder head for an automotive engine of claim 1, wherein: the sliding groove (232) is a spiral arc groove.
6. A vermicular cast iron cylinder head for an automotive engine of claim 1, wherein: the cylinder cover assembly (1) is made of vermicular graphite cast iron materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910816347.6A CN110439703B (en) | 2019-08-30 | 2019-08-30 | Vermicular graphite cast iron cylinder cover for automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910816347.6A CN110439703B (en) | 2019-08-30 | 2019-08-30 | Vermicular graphite cast iron cylinder cover for automobile engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110439703A CN110439703A (en) | 2019-11-12 |
| CN110439703B true CN110439703B (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910816347.6A Active CN110439703B (en) | 2019-08-30 | 2019-08-30 | Vermicular graphite cast iron cylinder cover for automobile engine |
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| CN (1) | CN110439703B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19839801A1 (en) * | 1997-09-02 | 1999-03-04 | Nissan Motor | Variable valve actuator for internal combustion engine |
| CN201757009U (en) * | 2010-08-20 | 2011-03-09 | 浙江凯吉汽车零部件制造有限公司 | Cylinder cover of automobile engine |
| CN201757008U (en) * | 2010-08-20 | 2011-03-09 | 浙江凯吉汽车零部件制造有限公司 | Electronic spray type cylinder head for automobile engine |
| CN102562347A (en) * | 2010-12-29 | 2012-07-11 | 福特环球技术公司 | Cylinder block |
| CN208010474U (en) * | 2018-01-24 | 2018-10-26 | 奇瑞汽车股份有限公司 | A kind of engine cylinder cover bolt hole boss structure |
| CN210599202U (en) * | 2019-08-30 | 2020-05-22 | 湖北玛尔帕斯动力科技有限公司 | Vermicular graphite cast iron cylinder cover for automobile engine |
-
2019
- 2019-08-30 CN CN201910816347.6A patent/CN110439703B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19839801A1 (en) * | 1997-09-02 | 1999-03-04 | Nissan Motor | Variable valve actuator for internal combustion engine |
| CN201757009U (en) * | 2010-08-20 | 2011-03-09 | 浙江凯吉汽车零部件制造有限公司 | Cylinder cover of automobile engine |
| CN201757008U (en) * | 2010-08-20 | 2011-03-09 | 浙江凯吉汽车零部件制造有限公司 | Electronic spray type cylinder head for automobile engine |
| CN102562347A (en) * | 2010-12-29 | 2012-07-11 | 福特环球技术公司 | Cylinder block |
| CN208010474U (en) * | 2018-01-24 | 2018-10-26 | 奇瑞汽车股份有限公司 | A kind of engine cylinder cover bolt hole boss structure |
| CN210599202U (en) * | 2019-08-30 | 2020-05-22 | 湖北玛尔帕斯动力科技有限公司 | Vermicular graphite cast iron cylinder cover for automobile engine |
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| Publication number | Publication date |
|---|---|
| CN110439703A (en) | 2019-11-12 |
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