CN215370056U - Piston pin base inner and outer support rib reinforced piston structure - Google Patents
Piston pin base inner and outer support rib reinforced piston structure Download PDFInfo
- Publication number
- CN215370056U CN215370056U CN202121300545.6U CN202121300545U CN215370056U CN 215370056 U CN215370056 U CN 215370056U CN 202121300545 U CN202121300545 U CN 202121300545U CN 215370056 U CN215370056 U CN 215370056U
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- piston
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- pin boss
- piston pin
- boss
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 37
- 230000002787 reinforcement Effects 0.000 claims description 13
- 238000002485 combustion reaction Methods 0.000 abstract description 9
- 230000002452 interceptive effect Effects 0.000 abstract description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model discloses a piston pin base inner and outer support rib reinforced piston structure, and relates to the technical field of internal combustion engines. The piston pin boss comprises a piston pin boss body, wherein the piston pin boss body comprises a pin boss head and a pin boss skirt part arranged at the lower end of the pin boss head, and piston pin hole bosses are symmetrically arranged on the pin boss skirt part; two first reinforcing ribs are arranged between the top of the piston pin hole seat and the head of the pin seat, and the first reinforcing ribs are positioned on the outer wall of the pin seat skirt; two second reinforcing ribs are arranged between the tops of the two piston pin hole seats, the second reinforcing ribs are located at the bottoms of the head portions of the pin seats, and the second reinforcing ribs are door-shaped. The utility model optimizes and improves the original piston pin seat supporting structure, strengthens the supporting structure under the condition of not interfering the assembly of the connecting rod and the piston pin hole, avoids the quality accident of pin seat fracture caused by insufficient strength of the pin seat supporting rib, effectively improves the working reliability and the durability of the piston, and prolongs the service life of the piston and the engine.
Description
Technical Field
The utility model relates to the technical field of internal combustion engines, in particular to a piston pin base inner and outer support rib reinforced piston structure.
Background
The internal combustion engine, especially a diesel engine and a gas engine, requires high power, low energy consumption, low emission and long service life, and the piston is one of the moving parts with the largest working intensity and the worst working environment of the internal combustion engine. In recent years, in order to greatly improve the thermal efficiency of an internal combustion engine, particularly a diesel engine, the gas compression degree is continuously increased, the thermal load in a cylinder is obviously increased along with the continuous improvement of the power of the internal combustion engine, the explosion pressure of a combustion chamber is increased from the original 13 MPa-17 MPa to the current 17 MPa-23 MPa, even higher, the temperature of the combustion chamber is also increased to nearly 500 ℃ on the basis of the original 400 ℃, the original piston pin boss supporting structure is more and more careless, and particularly, the accidents of high explosion pressure and high-power internal combustion engine pin boss fracture quality occur.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a piston pin base inner and outer support rib reinforced piston structure to solve the problems.
In order to achieve the purpose, the utility model provides a piston pin boss inner and outer support rib reinforced piston structure, which comprises a piston pin boss body, wherein the piston pin boss body comprises a pin boss head part and a pin boss skirt part arranged at the lower end of the pin boss head part, and piston pin hole seats are symmetrically arranged on the pin boss skirt part; two first reinforcing ribs are arranged between the top of the piston pin hole seat and the head of the pin seat, and the first reinforcing ribs are positioned on the outer wall of the skirt part of the pin seat; two second reinforcing ribs are arranged between the tops of the piston pin hole seats, the second reinforcing ribs are located at the bottoms of the head portions of the pin seats, and the second reinforcing ribs are door-shaped.
Furthermore, two sides of the inner wall of the skirt portion of the pin boss are provided with first reinforcing rings, and two ends of each first reinforcing ring are connected with one side of the middle portion of the pin boss.
Furthermore, a second reinforcing ring is arranged on the inner wall of the skirt portion of the pin boss and connected with a second reinforcing rib.
Further, the first stiffener ring width is less than a length of the piston pin boss inboard of the pin boss skirt.
Furthermore, a fillet is arranged at the bending part of the second reinforcing rib, and the radius of the fillet is smaller than half of the radius of the piston pin hole seat.
The utility model optimizes and improves the original piston pin boss supporting structure, strengthens the supporting structure under the condition of not interfering the assembly of the connecting rod and the piston pin hole, and improves the supporting strength of the piston pin boss by more than 50 percent; the quality accident of pin boss breakage caused by insufficient strength of the pin boss supporting rib is avoided, the working reliability of the piston and the durability of the piston are effectively improved, and the service lives of the piston and an engine are prolonged.
Drawings
FIG. 1 is an external view of a piston pin seat with internal and external support ribs for reinforcing the piston structure.
FIG. 2 is a schematic view of the inside of a piston pin seat with inner and outer support ribs for reinforcing the piston structure.
Wherein, 1-pin seat head; 2-pin boss skirt; 3-piston pin bore seat; 4-a first reinforcing rib; 5-a second reinforcing rib; 6-a second reinforcement ring; 7-a first reinforcement ring; a-the length of the piston pin boss inside the pin boss skirt; b-first stiffener ring width.
Detailed Description
To achieve the above objects and advantages, the present invention provides a technical means and a structure thereof, which are described in detail with reference to the accompanying drawings.
As shown in the attached drawings, the utility model provides a piston pin boss inner and outer support rib reinforced piston structure, which comprises a piston pin boss body, wherein the piston pin boss body comprises a pin boss head part 1 and a pin boss skirt part 2 arranged at the lower end of the pin boss head part, and piston pin hole bosses 3 are symmetrically arranged on the pin boss skirt part 2; two first reinforcing ribs 4 are arranged between the top of the piston pin hole seat 3 and the pin seat head part 1, and the first reinforcing ribs 4 are positioned on the outer wall of the pin seat skirt part 2; two second reinforcing ribs 5 are arranged between the tops of the two piston pin hole seats 3, the second reinforcing ribs 5 are located at the bottom of the pin seat head portion 1, and the second reinforcing ribs 5 are door-shaped. And a fillet is arranged at the bent part of the second reinforcing rib 5, and the radius of the fillet is smaller than half of the radius of the piston pin hole seat 3.
And first reinforcing rings 7 are arranged on two sides of the inner wall of the pin boss skirt part 2, and two ends of each first reinforcing ring 7 are connected with one side of the middle part of the piston pin hole seat 3. The first reinforcement ring width b is less than the length a of the piston pin bore boss inboard of the pin boss skirt. This structure can reinforce the strength of the pin boss skirt portion 2.
And a second reinforcing ring 6 is arranged on the inner wall of the pin boss skirt part 2, and the second reinforcing ring 6 is connected with a second reinforcing rib 5. This structure can reinforce the strength of both the pin boss skirt portion 2 and the second reinforcing bead 5.
The above description is only a preferred embodiment of the present invention, and not all embodiments, and all structural changes made under the teaching of the present invention should be understood as belonging to the protection scope of the present invention.
Claims (5)
1. A piston pin boss inner and outer support rib reinforced piston structure comprises a piston pin boss body, wherein the piston pin boss body comprises a pin boss head part and a pin boss skirt part arranged at the lower end of the pin boss head part, and piston pin hole bosses are symmetrically arranged on the pin boss skirt part; the piston pin is characterized in that two first reinforcing ribs are arranged between the top of the piston pin hole seat and the head of the pin seat, and the first reinforcing ribs are positioned on the outer wall of the pin seat skirt; two second reinforcing ribs are arranged between the tops of the piston pin hole seats, the second reinforcing ribs are located at the bottoms of the head portions of the pin seats, and the second reinforcing ribs are door-shaped.
2. The piston pin boss inner and outer brace reinforcement piston structure of claim 1, wherein a first reinforcement ring is provided on both sides of an inner wall of a skirt portion of the pin boss, and both ends of the first reinforcement ring are connected to one side of a center portion of the pin boss.
3. The piston pin boss inner and outer brace reinforcement piston structure of claim 1 or 2, wherein a second reinforcement ring is provided on the inner wall of the pin boss skirt portion, and the second reinforcement ring is connected with a second reinforcement rib.
4. The piston pin boss inner and outer brace reinforcement piston structure of claim 2, wherein said first reinforcement ring width is less than the length of the piston pin bore boss inboard of the pin boss skirt.
5. The piston pin boss inner and outer brace reinforcing piston structure of claim 1 or 2, wherein the bend of the second reinforcement rib is provided with a fillet, and the radius of the fillet is less than half of the radius of the pin boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121300545.6U CN215370056U (en) | 2021-06-10 | 2021-06-10 | Piston pin base inner and outer support rib reinforced piston structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121300545.6U CN215370056U (en) | 2021-06-10 | 2021-06-10 | Piston pin base inner and outer support rib reinforced piston structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215370056U true CN215370056U (en) | 2021-12-31 |
Family
ID=79634446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121300545.6U Active CN215370056U (en) | 2021-06-10 | 2021-06-10 | Piston pin base inner and outer support rib reinforced piston structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215370056U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11668263B2 (en) * | 2017-04-19 | 2023-06-06 | Ks Kolbenschmidt Gmbh | Piston with a structured design |
-
2021
- 2021-06-10 CN CN202121300545.6U patent/CN215370056U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11668263B2 (en) * | 2017-04-19 | 2023-06-06 | Ks Kolbenschmidt Gmbh | Piston with a structured design |
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