CN208281068U - A kind of engine block structure with timing limit - Google Patents
A kind of engine block structure with timing limit Download PDFInfo
- Publication number
- CN208281068U CN208281068U CN201820625250.8U CN201820625250U CN208281068U CN 208281068 U CN208281068 U CN 208281068U CN 201820625250 U CN201820625250 U CN 201820625250U CN 208281068 U CN208281068 U CN 208281068U
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- CN
- China
- Prior art keywords
- crankshaft
- pin hole
- limit
- limit pin
- timing
- 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.)
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a kind of engine block structures with timing limit, comprising: cylinder block；Crankshaft top chock, crankshaft installed is on the crankshaft top chock；Limit pin hole boss is arranged in the cylinder block at crankshaft top chock position, and the limit pin hole boss is equipped with limit pin hole；Spacer pin can pass through the limit pin hole and be connected in crankshaft upper limit pin hole, be conducive to limit crankshaft, achieve the purpose that timing.
Description
Technical field
The utility model belongs to technical field of automobile engine more particularly to a kind of engine cylinder body knot with timing limit
Structure.
Background technique
In the process of implementing the utility model, the inventor finds that the existing technology has at least the following problems: engine dress
Timing is by the label on crank pulley to timing, while turning crankshaft finds top dead centre, inefficiency when the method centering
And it is error-prone.
Utility model content
Technical problem to be solved in the utility model is to be conducive to limit crankshaft by one kind, achievees the purpose that timing
Engine block structure with timing limit.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the utility model is a kind of hair with timing limit
Motivation housing structure, comprising:
Cylinder block；
Crankshaft top chock, crankshaft installed is on the crankshaft top chock；
Limit pin hole boss is arranged in the cylinder block at crankshaft top chock position, the spacer pin
Hole boss is equipped with limit pin hole；
Spacer pin can pass through the limit pin hole and be connected in crankshaft upper limit pin hole.
When the spacer pin is inserted into the crankshaft upper limit pin hole, crank position, which is locked in, guarantees that piston is in the
On one cylinder top dead centre.
Limit pin hole boss side is equipped with boss reinforcing rib, and the boss reinforcing rib is connect with cylinder block.
A technical solution in above-mentioned technical proposal has the following advantages that or beneficial effect, by arranging one on cylinder body
A through-hole structure for being used to install crankshaft spacer pin, by corresponding to limit pin hole limit on limit pin connection crankshaft to guarantee first
The cylinder piston is now in top dead centre to achieve the purpose that valve timing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the engine block structure with timing limit provided in the utility model embodiment；
Fig. 2 is the A-A cross-sectional view of Fig. 1；
Label in above-mentioned figure is equal are as follows: 1, cylinder block, 2, limit pin hole boss, 3, boss reinforcing rib, 4, crankshaft upper bearing (metal)
Seat.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
Referring to Fig. 1-2, a kind of engine block structure with timing limit, comprising:
Cylinder block；
Crankshaft top chock, crankshaft installed is on crankshaft top chock；
Limit pin hole boss is arranged in cylinder block at crankshaft top chock position, and limit pin hole boss is equipped with
Limit pin hole；
Spacer pin can pass through limit pin hole and be connected in crankshaft upper limit pin hole.
When in spacer pin insertion crankshaft upper limit pin hole, crank position, which is locked in, guarantees that piston is on the first cylinder only
Point on.
Limit pin hole boss side is equipped with boss reinforcing rib, and boss reinforcing rib is connect with cylinder block.
Increase a crankshaft limit pin hole close to the position of crankcase at cylinder body leading portion end, is conducive to limit crankshaft, guarantee
First the cylinder piston is now in top dead center position, saves the time, prevents from malfunctioning, to achieve the purpose that timing.
When crankshaft spacer pin is connected in crankshaft upper limit pin hole by cylinder body limit pin hole, crank position is locked at this time
Just guarantee that piston is on the first cylinder top dead centre, to achieve the purpose that timing.
After above-mentioned structure, by arranging the through-hole structure for being used to install crankshaft spacer pin on cylinder body, lead to
It crosses on limit pin connection crankshaft and corresponds to limit pin hole limit to guarantee that the first the cylinder piston is now in top dead centre to reach distribution just
When purpose.
The utility model is exemplarily described above in conjunction with attached drawing, it is clear that the utility model specific implementation not by
The limitation of aforesaid way, as long as the various unsubstantialities carried out using the method concept and technical solution of the utility model change
Into, or it is not improved the conception and technical scheme of the utility model are directly applied into other occasions, in the utility model
Protection scope within.
Claims (3)
1. it is a kind of with timing limit engine block structure comprising:
Cylinder block；
Crankshaft top chock, crankshaft installed is on the crankshaft top chock；
Limit pin hole boss is arranged in the cylinder block at crankshaft top chock position, and the limit pin hole is convex
Platform is equipped with limit pin hole；
Spacer pin can pass through the limit pin hole and be connected in crankshaft upper limit pin hole.
2. the engine block structure as described in claim 1 with timing limit, which is characterized in that when the spacer pin is inserted into
When in the crankshaft upper limit pin hole, crank position, which is locked in, guarantees that piston is on the first cylinder top dead centre.
3. the engine block structure as claimed in claim 2 with timing limit, which is characterized in that the limit pin hole boss
Side is equipped with boss reinforcing rib, and the boss reinforcing rib is connect with cylinder block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820625250.8U CN208281068U (en) | 2018-04-28 | 2018-04-28 | A kind of engine block structure with timing limit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820625250.8U CN208281068U (en) | 2018-04-28 | 2018-04-28 | A kind of engine block structure with timing limit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208281068U true CN208281068U (en) | 2018-12-25 |
Family
ID=64752470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820625250.8U Active CN208281068U (en) | 2018-04-28 | 2018-04-28 | A kind of engine block structure with timing limit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208281068U (en) |
-
2018
- 2018-04-28 CN CN201820625250.8U patent/CN208281068U/en active Active
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| GR01 | Patent grant |