CN113586279A - Oil pan sealing structure - Google Patents
Oil pan sealing structure Download PDFInfo
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- CN113586279A CN113586279A CN202110979837.5A CN202110979837A CN113586279A CN 113586279 A CN113586279 A CN 113586279A CN 202110979837 A CN202110979837 A CN 202110979837A CN 113586279 A CN113586279 A CN 113586279A
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- oil pan
- cross arm
- flanging
- sealing
- hole
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- 238000007789 sealing Methods 0.000 title claims abstract description 87
- 239000002184 metal Substances 0.000 claims description 11
- 230000002787 reinforcement Effects 0.000 claims 2
- 230000004308 accommodation Effects 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000003921 oil Substances 0.000 description 113
- 230000003014 reinforcing effect Effects 0.000 description 13
- 210000000078 claw Anatomy 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/0004—Oilsumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/0004—Oilsumps
- F01M2011/0054—Fastening to the cylinder block
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/0004—Oilsumps
- F01M2011/0062—Gaskets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention relates to the technical field of engines and discloses an oil pan sealing structure. The oil pan sealing structure is used for sealing an oil pan and an engine cylinder body, and comprises a clamping jaw, a first elastic part, a second elastic part and a sealing gasket, wherein the clamping jaw comprises a first cross arm, a connecting vertical arm and a second cross arm, the first cross arm and the second cross arm are arranged in parallel at intervals, the first cross arm is positioned above the second cross arm, two ends of the connecting vertical arm are respectively connected with the first cross arm and the second cross arm, and a U-shaped structure formed by enclosing the first cross arm, the connecting vertical arm and the second cross arm can clamp a first flanging structure and a second flanging structure; the first elastic piece is arranged on the inner side of the first cross arm and can be abutted against the upper surface of the second flanging structure; the second elastic piece is arranged on the inner side of the second cross arm and can be abutted against the lower surface of the first flanging structure; the sealing gasket is located between the first flanging structure and the second flanging structure. The oil pan sealing structure has good sealing reliability.
Description
Technical Field
The invention relates to the technical field of engines, in particular to an oil pan sealing structure.
Background
The oil pan is located at the bottom of the engine and is an oil storage device of the engine. Engine oil is blood of an engine and has various functions such as lubrication, cooling, and cleaning. When the oil content is too low or the oil is polluted by the outside to cause the deterioration of the physical and chemical properties, the lubricating property of the engine is greatly reduced, and the friction pair of the engine has the danger of abnormal abrasion. In order to prevent the engine oil from being leaked or polluted by external impurities to deteriorate, it is very important to ensure the sealing performance of the oil pan.
As shown in fig. 1 to 3, in the prior art, the sealing of the oil pan 100 'and the engine block 200' is generally performed by: the oil pan 100 'and the engine cylinder body 200' are provided with flanging structures at opposite sides, a first bolt hole is formed in a flanging combination surface of the oil pan 100 'and the engine cylinder body 200', a sealing gasket 300 'with a second bolt hole is arranged between the oil pan 100' and the engine cylinder body, the second bolt hole on the sealing gasket 300 'corresponds to the first bolt hole in a one-to-one mode, a bolt 400' is reused to sequentially penetrate through the first bolt hole and the second bolt hole from the bottom of the flanging structure of the oil pan 100 'and is screwed, and the sealing performance between the oil pan 100' and the engine cylinder body 200 'is guaranteed by the aid of pretightening force of the bolt 400'.
However, in the above-described oil pan 100' sealing method, since a plurality of first bolt holes need to be formed in the oil pan 100' and the engine block 200', and a second bolt hole needs to be formed in the gasket 300', the effective sealing area of the gasket 300' is damaged to some extent, and the sealing area near the first bolt holes is significantly reduced. If the sealing gasket 300 'of the rubber seal structure is adopted, the rubber seal is easily crushed due to the overlarge moment of the bolt 400' in the assembling process. During the operation of the engine, due to the rigid connection of the shell structure of the oil pan 100' and the bolts 400', under the action of vibration, the bolts 400' may be loosened, the gasket may be damaged, or the resilience may be partially lost, which may cause the occurrence of oil leakage due to the failure of the seal.
Disclosure of Invention
Based on the above, the invention aims to provide an oil pan sealing structure which is good in sealing reliability and convenient to process and install.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an oil pan seal structure for seal oil pan and engine cylinder body, the oil pan is close to the one end of engine cylinder body is outwards extended and is provided with first flanging structure, the engine cylinder body is close to the one end of oil pan outwards extends and is provided with second flanging structure, oil pan seal structure includes:
the clamping jaw comprises a first cross arm, a connecting vertical arm and a second cross arm, the first cross arm and the second cross arm are arranged in parallel at intervals, the first cross arm is positioned above the second cross arm, two ends of the connecting vertical arm are respectively connected with the first cross arm and the second cross arm, and a U-shaped structure formed by the first cross arm, the connecting vertical arm and the second cross arm in a surrounding mode can clamp the first flanging structure and the second flanging structure;
the first elastic piece is arranged on the inner side of the first cross arm and can be abutted against the upper surface of the second flanging structure;
the second elastic piece is arranged on the inner side of the second cross arm and can be abutted against the lower surface of the first flanging structure;
and the sealing gasket is positioned between the first flanging structure and the second flanging structure.
As a preferable mode of the oil pan sealing structure, the first elastic member is detachably connected to the first cross arm; or
The first elastic piece is welded to the first cross arm.
As a preferable mode of the oil pan seal structure, the inner side of the second cross arm is provided with a receiving groove extending in the vertical direction, and the second elastic piece portion is received in the receiving groove.
As a preferable scheme of the oil pan sealing structure, the cross-sectional shape of the accommodating groove is a square structure;
the second elastic piece is of a cylindrical structure in appearance.
As a preferred scheme of the oil pan sealing structure, a first connecting hole is formed in the connecting vertical arm, a second connecting hole is formed in the side wall of the second flanging structure, and the connecting piece sequentially penetrates through the first connecting hole and the second connecting hole.
As a preferred scheme of the oil pan sealing structure, the first connecting hole is a strip-shaped hole extending in the vertical direction, and the connecting piece can slide along the hole wall of the strip-shaped hole.
As a preferred scheme of the oil pan sealing structure, the sealing gasket comprises a metal framework and a rubber layer, and the rubber layer is wrapped on the metal framework.
As an optimal scheme of the oil pan sealing structure, the metal framework comprises an outer ring framework and an inner ring framework which are connected, the rubber layers are symmetrically distributed on two sides of the inner ring framework, the thickness of the outer ring framework is larger than that of the inner ring framework, and the thickness difference between the outer ring framework and the inner ring framework is smaller than that of the rubber layers.
As an optimal scheme of the oil pan sealing structure, the oil pan sealing structure further comprises a positioning pin, a first positioning hole is formed in the first flanging structure, a second positioning hole corresponding to the first positioning hole is formed in the second flanging structure, and the positioning pin can sequentially penetrate through the first positioning hole and the second positioning hole.
As a preferable scheme of the oil pan sealing structure, the oil pan sealing structure further comprises a reinforcing plate, and the reinforcing plate is arranged on one side of the first flanging structure, which is far away from the engine cylinder body.
The invention has the beneficial effects that:
the invention provides an oil pan sealing structure, which utilizes the elastic force of a first elastic part to tightly abut against the upper surface of a second flanging structure, utilizes the elastic force of a second elastic part to tightly abut against the lower surface of a first flanging structure, and enables a clamping jaw to tightly clamp the first flanging structure and the second flanging structure through the mutual matching among the clamping jaw, the first elastic part, the second elastic part and a sealing gasket, without arranging a plurality of connecting bolt holes on the first flanging structure and the second flanging structure, so that the processing technology can be simplified, the integrity of the sealing gasket can be kept, and the sealing reliability between the oil pan and an engine cylinder body is improved; in addition, the elastic force of the first elastic piece and the second elastic piece is utilized to provide clamping force, the influence of vibration on the connection clamping force can be reduced, good sealing performance between the oil pan and the engine cylinder body is ensured, and the situation that oil leakage is caused due to sealing failure is avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and 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 contents of the embodiments of the present invention and the drawings without creative efforts.
FIG. 1 is a schematic diagram of a prior art oil pan seal structure, oil pan and engine block;
FIG. 2 is an exploded view of an oil pan seal structure, oil pan and engine block provided by the prior art;
FIG. 3 is a cross-sectional schematic view of an oil pan seal structure, oil pan and engine block provided by the prior art;
FIG. 4 is a schematic structural diagram of an oil pan sealing structure, an oil pan and an engine block provided by the embodiment of the invention;
FIG. 5 is an exploded view of an oil pan seal structure, an oil pan and an engine block provided by an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of an oil pan seal structure, an oil pan and an engine block provided by an embodiment of the invention;
fig. 7 is a schematic structural view of an oil pan sealing structure provided by an embodiment of the invention;
FIG. 8 is an exploded view of an oil pan seal structure provided by an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a gasket of the oil pan sealing structure provided by the embodiment of the invention;
fig. 10 is a schematic cross-sectional view at a-a of fig. 9.
In the figure:
100' -an oil pan; 200' -an engine block; 300' -a sealing gasket; 400' -bolt;
100-oil pan; 101-a first flanging structure;
200-an engine block; 201-a second flanging structure; 202-second connection hole;
300-sump seal structure;
1-a claw; 11-a first cross arm; 12-connecting the vertical arms; 121-a first connection hole; 13-a second cross arm; 131-an accommodating groove;
2-a first elastic member; 3-a second elastic member;
4-a sealing gasket; 41-metal skeleton; 411-outer ring skeleton; 412-inner ring skeleton; 42-a rubber layer;
5-a reinforcing plate; 6-positioning pins; 7-connecting piece.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 4 to 8, the present embodiment provides an oil pan sealing structure 300, where the oil pan sealing structure 300 is used to seal an oil pan 100 and an engine block 200, so as to ensure the sealing performance between the oil pan 100 and the engine block 200, prevent the oil in the oil pan 100 from being contaminated by the outside, so as to degrade the physical and chemical properties of the oil, ensure the lubricating performance of the oil in the oil pan 100, and avoid the risk of abnormal wear of the friction pair of the engine.
Specifically, a first flanging structure 101 is extended and disposed at one end of the oil pan 100 close to the engine block 200, and a second flanging structure 201 is extended and disposed at one end of the engine block 200 close to the oil pan 100. The oil pan sealing structure 300 provided by the embodiment comprises a clamping jaw 1, a first elastic part 2, a second elastic part 3 and a sealing gasket 4, wherein the clamping jaw 1 comprises a first cross arm 11, a connecting vertical arm 12 and a second cross arm 13, the first cross arm 11 and the second cross arm 13 are arranged in parallel at intervals, the first cross arm 11 is positioned above the second cross arm 13, two ends of the connecting vertical arm 12 are respectively connected with the first cross arm 11 and the second cross arm 13, and a U-shaped structure formed by enclosing the first cross arm 11, the connecting vertical arm 12 and the second cross arm 13 can clamp a first flanging structure 101 and a second flanging structure 201; the first elastic piece 2 is arranged on the inner side of the first cross arm 11 and can be abutted against the upper surface of the second flanging structure 201; the second elastic part 3 is arranged on the inner side of the second cross arm 13 and can be abutted against the lower surface of the first flanging structure 101, and the sealing gasket 4 is positioned between the first flanging structure 101 and the second flanging structure 201.
In the oil pan sealing structure 300 provided by this embodiment, the elastic force of the first elastic member 2 abuts against the upper surface of the second flange structure 201, the elastic force of the second elastic member 3 abuts against the lower surface of the first flange structure 101, and the claw 1, the first elastic member 2, the second elastic member 3 and the sealing gasket 4 are mutually matched, so that the claw 1 can tightly clamp the first flange structure 101 and the second flange structure 201, and a plurality of connecting bolt holes do not need to be formed in the first flange structure 101 and the second flange structure 201, which can simplify the processing technology, can maintain the integrity of the sealing gasket 4, and improve the reliability of sealing between the oil pan 100 and the engine cylinder block 200; in addition, the elastic force of the first elastic part 2 and the second elastic part 3 is utilized to provide clamping force, so that the influence of vibration on the connection clamping force can be reduced, good sealing performance between the oil pan 100 and the engine cylinder block 200 is ensured, and the situation that oil leakage is caused by sealing failure is avoided.
Further, as shown in fig. 6 to 8, the first elastic member 2 is detachably attached to the first cross arm 11. The oil pan 100 with different models can be subjected to different pretightening forces, when the oil pan 100 with different models and the engine cylinder block 200 need to be sealed, the oil pan sealing structure 300 does not need to be integrally replaced, only the first elastic piece 2 which is proper needs to be installed on the first cross arm 11 again, and the universality of the oil pan sealing structure 300 can be improved. Optionally, in this embodiment, the first elastic member 2 is a spring plate. Of course, in other embodiments, the first elastic member 2 may also be a rubber block.
Specifically, as shown in fig. 8, the first elastic member 2 and the first cross arm 11 are connected by a connecting bolt, so that the first elastic member and the first cross arm are detachably connected. When the first elastic part 2 needs to be replaced, the first elastic part 2 can be detached simply, conveniently and quickly only by simple screwing action of an operator; in addition, the bolt connection has the advantages of simple processing and stable connection.
It is understood that, in actual use, each oil pan sealing structure 300 corresponds to one type of oil pan 100 and engine block 200, so that the first elastic member 2 does not need to be replaced frequently, and in other embodiments, the first elastic member 2 may be welded to the first cross arm 11.
Further, as shown in fig. 6 to 8, the inside of the second horizontal arm 13 is provided with a receiving groove 131 extending in the vertical direction, and the second elastic member 3 is partially received in the receiving groove 131. Alternatively, the second elastic member 3 is a rubber block. Of course, in other embodiments, the second elastic member 3 may also be a spring plate, a coil spring, or the like. The first elastic member 2 and the second elastic member 3 may be: the spring piece and the rubber block, the spring piece and the spiral spring, the rubber block and the spiral spring or the combination of the spring piece and the spring piece can achieve the effects.
Further, the cross-sectional shape of the accommodating groove 131 is a square structure; the second elastic member 3 has a cylindrical configuration. With this arrangement, a gap between the accommodating groove 131 and the second elastic member 3 can provide a deformation space for the second elastic member 3 to deform under pressure. In this embodiment, the diameter of the bottom surface of the second elastic member 3 with a cylindrical structure is slightly smaller than the side length of the accommodating groove 131 with a square structure, so that the second elastic member 3 can be prevented from bending in the accommodating groove 131 to affect the pre-tightening effect.
Further, the second elastic member 3 is detachably disposed in the accommodating groove 131. According to the bearing weight of the oil pan 100, the first elastic piece 2 and/or the second elastic piece 3 can be selectively replaced so as to meet the pre-tightening force requirements of oil pans 100 and engine cylinder blocks 200 of different models, and the universality is high.
Further, the connecting vertical arm 12 is provided with a first connecting hole 121, the side wall of the second flanging structure 201 is provided with a second connecting hole 202, and the connecting member 7 sequentially penetrates through the first connecting hole 121 and the second connecting hole 202. By tightly connecting the claws 1 and the engine block 200 together by the connecting pieces 7, it is possible to prevent a phenomenon in which the claws 1 are detached from the oil pan 100 and the engine block 200 due to engine vibration. Because the second connecting hole 202 is formed in the side wall of the second flanging structure 201, and the connecting piece 7 does not need to penetrate through the sealing gasket 4 when connecting the clamping jaw 1 and the engine cylinder block 200, the integrity of the sealing gasket 4 can be ensured, and the reliability of sealing between the oil pan 100 and the engine cylinder block 200 is improved.
Alternatively, in this embodiment, as shown in fig. 8, the first connection hole 121 is a bar-shaped hole extending in the vertical direction, and the connection member 7 can slide along the hole wall of the bar-shaped hole. With the arrangement, the connecting piece 7 can also assist the assembly among the claw 1, the oil pan 100 and the engine cylinder body 200, and the connecting piece 7 can slide up and down along the hole wall of the strip-shaped hole to move the claw 1 to a proper position, so that the first elastic piece 2 and the second elastic piece 3 have proper pretightening force. When the material models of the first elastic piece 2 and the second elastic piece 3 are selected correctly and the position of the connecting piece 7 relative to the claw 1 is correct, the connecting piece 7 is only subjected to pre-tightening force along the axial direction of the connecting piece 7, only can play a role in positioning, and can prevent the claw 1 from being separated from the oil pan 100 and the engine cylinder block 200, and meanwhile, the connecting piece 7 also has a lateral thrust fixing function on the oil pan 100, so that the oil pan 100 is prevented from being dislocated along the upper surface parallel to the first flanging structure 101 due to the inertia effect when a vehicle ascends and descends. Alternatively, the connecting member 7 is a fastening bolt, and the second connecting hole 202 is a threaded hole, into which the fastening bolt can be screwed.
Further, as shown in fig. 5 and 6, the oil pan sealing structure 300 further includes a reinforcing plate 5, and the reinforcing plate 5 is disposed on a side of the first burring structure 101 away from the engine block 200. By providing the reinforcing plate 5, the rigidity of the first burring structure 101 can be improved. In the present embodiment, the shape of the reinforcing plate 5 is the same as that of the first burring structure 101, and the size can be changed according to different types of oil pans 100, so as to meet the strength requirements of different types of oil pans 100. Optionally, the reinforcing plate 5 is welded to the first flange structure 101, so that the connection is stable and the strength is high.
Of course, in other embodiments, the number of the reinforcing plates 5 may be multiple, and multiple reinforcing plates 5 are arranged at intervals along the circumferential direction of the first flanging structure 101, which also can achieve the above-mentioned effects.
Further, as shown in fig. 9 and 10, the sealing gasket 4 includes a metal frame 41 and a rubber layer 42, and the rubber layer 42 is wrapped on the metal frame 41. The metal framework 41 can increase the strength of the sealing gasket 4, and plays a role in prolonging the service life of the sealing gasket 4.
Specifically, as shown in fig. 10, the metal frame 41 includes an outer ring frame 411 and an inner ring frame 412 connected to each other, the rubber layer 42 is symmetrically distributed on both sides of the inner ring frame 412, the thickness of the outer ring frame 411 is greater than that of the inner ring frame 412, and the thickness difference between the outer ring frame 411 and the inner ring frame 412 is smaller than that of the rubber layer 42. The outer ring frame 411 can protect and control the deformation of the rubber layer 42 during assembly, and can prevent the rubber layer 42 from being crushed due to excessive bonding force. That is, at the time of assembly, when both the oil pan 100 and the engine block 200 are in contact with the outer ring frame 411, the maximum deformation amount of the rubber layer 42 is reached. In selecting the gauge of the rubber layer 42, it is desirable to ensure that plastic deformation does not occur when the rubber layer 42 reaches the maximum deformation noted above.
Optionally, the outer ring framework 411 and the inner ring framework 412 are of an integrally formed structure, so that the processing is convenient, and the installation efficiency is high.
Further, as shown in fig. 10, the rubber layer 42 has a saw-tooth cross-sectional shape, and functions as an oil seal. With this arrangement, the gap between two adjacent serrations provides a deformation space for the rubber layer 42, ensuring a sealing effect between the oil pan 100 and the engine block 200.
Further, in order to ensure the assembly accuracy between the oil pan 100 and the engine cylinder block 200, as shown in fig. 5, the oil pan sealing structure 300 further includes a positioning pin 6, a first positioning hole is formed in the first flanging structure 101, a second positioning hole corresponding to the first positioning hole is formed in the second flanging structure 201, and the positioning pin 6 can sequentially penetrate through the first positioning hole and the second positioning hole. Alternatively, the number of the positioning pins 6 is two, and each positioning pin 6 corresponds to one first positioning hole and one second positioning hole, so that the accuracy of positioning between the oil pan 100 and the engine block 200 is achieved. Of course, in other embodiments, the number of the positioning pins 6 may also be adjusted according to actual situations, and this embodiment does not limit this.
It can be understood that a third positioning hole corresponding to the first positioning hole is further provided on the sealing gasket 4 for the penetration of the positioning pin 6. Compared with the scheme that the second bolt hole is formed in the sealing gasket in the prior art, the number of the third positioning holes is only two, and the integrity of the sealing gasket 4 cannot be seriously damaged.
Further, as shown in fig. 4 and 5, for the assembly of each set of the oil pan 100 and the engine block 200, the number of the oil pan sealing structures 300 is plural, and the plural oil pan sealing structures 300 are arranged uniformly and at intervals along the circumferential direction of the oil pan 100, so as to further improve the sealing reliability between the oil pan 100 and the engine block 200.
The assembly process of the oil pan 100 and the engine block 200 is briefly described below with reference to fig. 4 to 10:
(1) fixing the positioning pin 6 on the engine cylinder block 200, and then enabling the positioning pin 6 to sequentially penetrate through a third positioning hole on the sealing gasket 4 and the first positioning hole on the oil pan 100 so as to connect the oil pan 100, the sealing gasket 4 and the engine cylinder block 200 together;
(2) the clamping jaw 1 is propped against the lower surface of the first flanging structure 101 from bottom to top, at the moment, the second elastic part 3 in the second cross arm 13 is attached to the reinforcing plate 5, then the clamping jaw 1 is pressed towards the direction of the engine cylinder body 200 by force, meanwhile, the connecting piece 7 penetrates through the first connecting hole 121 in the connecting vertical arm 12, the relative position between the connecting piece 7 and the connecting vertical arm 12 is adjusted up and down, and the connecting piece is screwed into the second connecting hole 202 of the engine cylinder body 200 after the connecting piece is in place, and at the moment, the clamping jaw 1 tightly clamps the first flanging structure 101 and the second flanging structure 201;
(3) the remaining oil pan seal structure 300 may be attached to the oil pan 100 and the engine block 200 according to step (2).
The oil pan sealing structure 300 provided by the embodiment can be applied to the assembly of oil pans 100 and engine blocks 200 of different models, and only the models and sizes of the first elastic pieces 2 and the second elastic pieces 3 need to be changed. For the stamped steel plate oil pan 100, the oil pan sealing structure 300 only needs to process a proper reinforcing plate 5 without changing the die of the original oil pan 100, and the production cost is low; for the oil pan 100 made of plastic, if the thickness of the first flanging structure 101 is enough, the reinforcing plate 5 does not need to be additionally arranged; compare with traditional oil pan mounting means, the installation density of the oil pan seal structure 300 of whole oil pan 100 a week of encircleing need be less than the bolt a lot, and need not hang in midair the complete machine or overturn, and the installation is simple swift, and the equal used repeatedly of each spare part, and the later maintenance cost is low.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. An oil pan sealing structure for sealing an oil pan (100) and an engine cylinder block (200), wherein the oil pan (100) is close to an outward extension of one end of the engine cylinder block (200) is provided with a first flanging structure (101), the engine cylinder block (200) is close to an outward extension of one end of the oil pan (100) is provided with a second flanging structure (201), and the oil pan sealing structure is characterized by comprising:
the clamping jaw (1) comprises a first cross arm (11), a connecting vertical arm (12) and a second cross arm (13), the first cross arm (11) and the second cross arm (13) are arranged in parallel at intervals, the first cross arm (11) is located above the second cross arm (13), two ends of the connecting vertical arm (12) are respectively connected with the first cross arm (11) and the second cross arm (13), and a U-shaped structure formed by enclosing the first cross arm (11), the connecting vertical arm (12) and the second cross arm (13) can clamp the first flanging structure (101) and the second flanging structure (201);
the first elastic piece (2) is arranged on the inner side of the first cross arm (11) and can be abutted against the upper surface of the second flanging structure (201);
the second elastic piece (3) is arranged on the inner side of the second cross arm (13) and can be abutted against the lower surface of the first flanging structure (101);
the sealing gasket (4) is located between the first flanging structure (101) and the second flanging structure (201).
2. An oil pan seal structure according to claim 1, characterized in that the first elastic member (2) is detachably attached to the first cross arm (11); or
The first elastic piece (2) is welded to the first cross arm (11).
3. An oil pan seal structure according to claim 1, characterized in that the inside of the second crossbar (13) is provided with a receiving groove (131) extending in the vertical direction, and the second elastic member (3) is partially received in the receiving groove (131).
4. An oil pan seal structure according to claim 3, characterized in that the cross-sectional shape of the accommodation groove (131) is a square structure;
the second elastic piece (3) is of a cylindrical structure in appearance.
5. The oil pan sealing structure according to claim 1, wherein a first connecting hole (121) is formed in the connecting vertical arm (12), a second connecting hole (202) is formed in the side wall of the second flanging structure (201), and a connecting piece (7) is sequentially arranged in the first connecting hole (121) and the second connecting hole (202) in a penetrating manner.
6. An oil pan sealing structure according to claim 5, characterised in that the first connection hole (121) is a strip-shaped hole extending in the vertical direction, the connection piece (7) being slidable along the hole wall of the strip-shaped hole.
7. The oil pan seal structure according to claim 1, characterized in that the seal gasket (4) includes a metal skeleton (41) and a rubber layer (42), and the rubber layer (42) is wrapped on the metal skeleton (41).
8. The oil pan sealing structure according to claim 7, characterized in that the metal framework (41) comprises an outer ring framework (411) and an inner ring framework (412) which are connected, the rubber layer (42) is symmetrically distributed on two sides of the inner ring framework (412), the thickness of the outer ring framework (411) is larger than that of the inner ring framework (412), and the thickness difference between the outer ring framework (411) and the inner ring framework (412) is smaller than that of the rubber layer (42).
9. The oil pan sealing structure according to claim 1, further comprising a positioning pin (6), wherein a first positioning hole is formed in the first flanging structure (101), a second positioning hole corresponding to the first positioning hole is formed in the second flanging structure (201), and the positioning pin (6) can be sequentially inserted into the first positioning hole and the second positioning hole.
10. Oil pan sealing structure according to any one of claims 1-9, characterised in that it further comprises a reinforcement plate (5), which reinforcement plate (5) is arranged on the side of the first flanging structure (101) remote from the engine block (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110979837.5A CN113586279A (en) | 2021-08-25 | 2021-08-25 | Oil pan sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110979837.5A CN113586279A (en) | 2021-08-25 | 2021-08-25 | Oil pan sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113586279A true CN113586279A (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110979837.5A Pending CN113586279A (en) | 2021-08-25 | 2021-08-25 | Oil pan sealing structure |
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| Country | Link |
|---|---|
| CN (1) | CN113586279A (en) |
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| US4784396A (en) * | 1987-06-01 | 1988-11-15 | Ford Motor Company | Retaining clip and gasket for engine subassembly |
| US7040274B1 (en) * | 1999-01-25 | 2006-05-09 | Henkel Loctite Deutschland Gmbh | Process for attaching the oil sump to an engine block of a combustion engine |
| US20090173310A1 (en) * | 2008-01-07 | 2009-07-09 | Brent Ryan Sedlar | Vehicle engine and snap-on engine cover assembly therefor and method of assembly of the cover assembly to the engine |
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| CN103375301A (en) * | 2012-04-24 | 2013-10-30 | 安徽华菱汽车有限公司 | Engine and oil pan sealing structure thereof |
| CN203271944U (en) * | 2013-06-05 | 2013-11-06 | 中国重汽集团济南动力有限公司 | Cylinder pad with skeleton rubber sealing rings |
| CN210715404U (en) * | 2019-09-04 | 2020-06-09 | 深圳市裕富照明有限公司 | Stainless steel clip |
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2021
- 2021-08-25 CN CN202110979837.5A patent/CN113586279A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4784396A (en) * | 1987-06-01 | 1988-11-15 | Ford Motor Company | Retaining clip and gasket for engine subassembly |
| US7040274B1 (en) * | 1999-01-25 | 2006-05-09 | Henkel Loctite Deutschland Gmbh | Process for attaching the oil sump to an engine block of a combustion engine |
| US20090173310A1 (en) * | 2008-01-07 | 2009-07-09 | Brent Ryan Sedlar | Vehicle engine and snap-on engine cover assembly therefor and method of assembly of the cover assembly to the engine |
| CN103062172A (en) * | 2011-10-19 | 2013-04-24 | 通用汽车环球科技运作有限责任公司 | Clamping element, method for use and fastening arrangement with clamping element |
| CN103375301A (en) * | 2012-04-24 | 2013-10-30 | 安徽华菱汽车有限公司 | Engine and oil pan sealing structure thereof |
| CN203271944U (en) * | 2013-06-05 | 2013-11-06 | 中国重汽集团济南动力有限公司 | Cylinder pad with skeleton rubber sealing rings |
| CN210715404U (en) * | 2019-09-04 | 2020-06-09 | 深圳市裕富照明有限公司 | Stainless steel clip |
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Application publication date: 20211102 |