CN101457709B - Engine crankcase lower box insert block - Google Patents
Engine crankcase lower box insert block Download PDFInfo
- Publication number
- CN101457709B CN101457709B CN2008102330918A CN200810233091A CN101457709B CN 101457709 B CN101457709 B CN 101457709B CN 2008102330918 A CN2008102330918 A CN 2008102330918A CN 200810233091 A CN200810233091 A CN 200810233091A CN 101457709 B CN101457709 B CN 101457709B
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- CN
- China
- Prior art keywords
- aluminum alloy
- embedded lump
- lower box
- embedded
- lump
- 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.)
- Expired - Fee Related
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a lower case body embedded lump for an engine crankcase. The upper part of the embedded lump is provided with a mounting hole seat of a crankshaft main journal, the side edge of the embedded lump is provided with dentiform bulge structure, and the lower part of the embedded lump is provided with a main bearing cover bolt installation lug. The improvement of the embedded lump is characterized in that an aluminum alloy containing hole is arranged between the mounting hole seat of the crankshaft main journal and the main bearing cover bolt installation lug. As the aluminum alloy containing hole is additionally arranged on the embedded lump, not only convex teeth but also aluminum alloys in the aluminum alloy containing hole are arranged between the lower case body aluminum alloy and the embedded lump to prevent the embedded lump from moving up and down. Thus, compared with a common embedded lump, the embedded lump has larger limitation area and bonding force, and the lower case body embedded lump for the crankcase and the lower case body are not easy to be loosened in the processes of starting and running.
Description
Technical field
The invention belongs to technical field of automobile engine, be specifically related to the crankcase of motor car engine.
Background technique
At present, for reducing the noise and the vibration of motor, the part motor adopts upper and lower housing structure on the aluminum alloy crankcase.For circularity, cylindricity and the main bearing that guarantees main bearing hole is stamped enough intensity, generally all studding with magnesium iron on crankcase lower box inserts, as seen Fig. 1, the top of inserting is crankshaft main journal mounting hole seat 1, side is provided with toothed projections structure 2, the bottom is provided with bolt of main bearing cap lug 3 is installed, the crankcase lower box insert block of this structure is located by the toothed projections structure 2 on the both sides of inserting, after the casting, lower box aluminum alloy 5 is filled in pit in the both sides toothed projections structure 2 of inserting, two sides and the visible Fig. 4 in bottom surface respectively.When motor moves, be embedded in by the both sides convex tooth of inserting and stop the moving up and down of inserting in the lower box aluminum alloy at vertical direction.This kind insert structure is simple, but insert and crankcase lower box between, only rely on the convex tooth to be embedded in that stoping in the aluminum alloy inserts moves up and down, insert and aluminum alloy between spacing area little, tolerance is little, after motor operation a period of time, insert and crankcase lower box between occur easily loosening.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of crankcase lower box insert block of motor, it and crankcase lower box between adhesive strength and movement process in will not be prone to loosening situation.
For realizing above technical problem, the solution of the present invention is as follows:
A kind of engine crankcase lower box insert block, on the top of inserting is crankshaft main journal mounting hole seat, side is provided with the toothed projections structure, the bottom is that bolt of main bearing cap is installed lug, and its improvements are to be provided with the aluminum alloy holding hole between crankshaft main journal mounting hole seat and bolt of main bearing cap installation lug.
Wherein aluminum alloy holding hole aluminum alloy holding hole is by Angular Dimension A, height dimension B, length dimension C, transition arc 4 * R control, Angular Dimension A is 45 °～60 °, size B is whole 1/3～1/2 of the height of inserting, size C is whole 1/5～1/4 of the height of inserting, and transition arc R is 2～5mm.
Adopt the crankcase lower box insert block structure of this kind, the both sides of inserting because the toothed projections even structure distributes, and on inserting, set up the aluminum alloy holding hole, after the casting, the lower box aluminum alloy is filled in pit in the both sides toothed projections structure of inserting, aluminum alloy holding hole, two sides and bottom surface respectively, sees Fig. 5.When motor moves, be embedded in the lower box aluminum alloy and aluminum alloy is filled in the aluminum alloy holding hole of inserting and stops the moving up and down at vertical direction of inserting by the both sides convex tooth of inserting.Like this lower box aluminum alloy and insert between not only have the convex tooth to also have aluminum alloy in the aluminum alloy holding hole to stop to insert to move up and down.Therefore this inserts greatlyyer than general spacing area and the combination force of inserting, and starts not to be prone between the crankcase lower box insert block and lower box in the running loosening.
Description of drawings
Fig. 1 crankcase lower box insert block structural representation generally commonly used
Fig. 2 is a structural representation of the present invention
Fig. 3 is a structure embodiment schematic representation of the present invention
Location state diagram after Fig. 4 crankcase lower box insert block casting generally commonly used
Fig. 5 lower box of the present invention insert the casting after location state diagram
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail:
As shown in Figure 2, this crankcase lower box insert block structure has crankshaft main journal mounting hole seat 1, toothed projections structure 2, and bolt of main bearing cap is installed lug 3 and aluminum alloy holding hole 4.
The convex tooth of toothed projections structure 2 is arranged in the both sides of inserting, and two aluminum alloy holding holes 4 are symmetrically distributed in the crankshaft main journal mounting hole seat 1 on the top of inserting and two bolt of main bearing caps of bottom are installed between the lugs 3.The size of the lower box and the combination force of inserting is realized by the size of two aluminum alloy holding holes 4.As Fig. 3 aluminum alloy holding hole by Angular Dimension A, height dimension B, length dimension C, transition arc 4 * R control, size A is 45 °～60 °, size B is 1/3～1/2 (30mm～50mm) of the whole height of inserting, size C be the whole height of inserting 1/5～1/4 (15mm～20mm), transition arc R is 2～5mm.By adjusting the size that size A, B, C and R can change the aluminum alloy holding hole, thereby increase or reduce lower box and insert between spacing area, after the casting, lower box aluminum alloy 5 is filled in pit in the both sides toothed projections structure of inserting, aluminum alloy holding hole, two sides and bottom surface respectively, see Fig. 5, reach and stop the purpose insert and move up and down, thus guarantee to insert and lower box between stable bond.
Claims (1)
1. engine crankcase lower box insert block, on the top of inserting is crankshaft main journal mounting hole seat, side is provided with the toothed projections structure, and the bottom is that bolt of main bearing cap is installed lug, and described crankshaft main journal mounting hole seat and bolt of main bearing cap are installed between the lug and be provided with the aluminum alloy holding hole;
Described aluminum alloy holding hole is two, and it is symmetrical set at described crankshaft main journal mounting hole seat and two bolt of main bearing caps and installs between the lug:
It is characterized in that: the Angular Dimension A of described aluminum alloy holding hole is 45 °～60 °, and height dimension B is whole 1/3～1/2 of the height of inserting, and length dimension C is whole 1/5～1/4 of the height of inserting, and transition arc R is 2～5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102330918A CN101457709B (en) | 2008-11-21 | 2008-11-21 | Engine crankcase lower box insert block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102330918A CN101457709B (en) | 2008-11-21 | 2008-11-21 | Engine crankcase lower box insert block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101457709A CN101457709A (en) | 2009-06-17 |
| CN101457709B true CN101457709B (en) | 2011-01-12 |
Family
ID=40768769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102330918A Expired - Fee Related CN101457709B (en) | 2008-11-21 | 2008-11-21 | Engine crankcase lower box insert block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101457709B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5932557B2 (en) * | 2012-08-07 | 2016-06-08 | 本田技研工業株式会社 | Internal combustion engine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4716638A (en) * | 1985-12-21 | 1988-01-05 | Dr. Ing. H.C.F. Porsche Aktiengesellschaft | Method for aligning bearing covers at bearing sections of a crankcase |
| DE10246522B3 (en) * | 2002-10-05 | 2004-04-08 | Audi Ag | Cylinder-crankcase block for internal combustion engine has further cast-in part in form of cylinder liner |
| CN201284702Y (en) * | 2008-09-18 | 2009-08-05 | 广西玉柴机器股份有限公司 | Crankcase with inlay casting structure |
| CN201301758Y (en) * | 2008-11-21 | 2009-09-02 | 重庆长安汽车股份有限公司 | Engine crankcase lower body insert block structure |
-
2008
- 2008-11-21 CN CN2008102330918A patent/CN101457709B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4716638A (en) * | 1985-12-21 | 1988-01-05 | Dr. Ing. H.C.F. Porsche Aktiengesellschaft | Method for aligning bearing covers at bearing sections of a crankcase |
| DE10246522B3 (en) * | 2002-10-05 | 2004-04-08 | Audi Ag | Cylinder-crankcase block for internal combustion engine has further cast-in part in form of cylinder liner |
| CN201284702Y (en) * | 2008-09-18 | 2009-08-05 | 广西玉柴机器股份有限公司 | Crankcase with inlay casting structure |
| CN201301758Y (en) * | 2008-11-21 | 2009-09-02 | 重庆长安汽车股份有限公司 | Engine crankcase lower body insert block structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101457709A (en) | 2009-06-17 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20191121 |