CN215879830U - Pin core with reinforced water cooling structure - Google Patents
Pin core with reinforced water cooling structure Download PDFInfo
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- CN215879830U CN215879830U CN202121801840.XU CN202121801840U CN215879830U CN 215879830 U CN215879830 U CN 215879830U CN 202121801840 U CN202121801840 U CN 202121801840U CN 215879830 U CN215879830 U CN 215879830U
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- pin core
- cooling
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- cooling channel
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Abstract
The utility model relates to the technical field of piston mold pin cores, in particular to a pin core with a reinforced water cooling structure. The utility model provides a take water-cooling structure's round pin core, includes round pin core endotheca, round pin core overcoat, its characterized in that: the pin core outer sleeve is sleeved on the outer side of the pin core inner sleeve, a first cooling channel is arranged at the center of the pin core inner sleeve, a second cooling channel is arranged between the pin core inner sleeve and the pin core outer sleeve, an inlet of the first cooling channel is connected with a water inlet joint, the upper part and the middle part of an outlet of the first cooling channel are respectively connected with one end of an upper side water inlet and one end of a front side water inlet, the other end of the upper side water inlet and the other end of the front side water inlet are respectively connected with the second cooling channel, and a water outlet joint is arranged on the upper part of the second cooling channel. Compared with the prior art, simple structure, processing is convenient, has optimized the cooling effect of round pin core to the intensity in pinhole region especially pinhole upper end region has been strengthened.
Description
Technical Field
The utility model relates to the technical field of piston mold pin cores, in particular to a pin core with a reinforced water cooling structure.
Background
When the engine works, the piston pin drives the piston to reciprocate up and down in the engine through the connecting rod, and the strength of the hole area of the piston pin, particularly the strength of the upper end of the pin hole, influences the strength of the whole piston. The upper end of the piston pin hole is thick in wall thickness and is a hot spot of a casting. In the casting process of the diesel engine piston, the cooling of the area needs to be strengthened, and a larger supercooling degree is formed, so that the metallographic structure of the area is refined, and the material strength of the area is enhanced.
The casting of the aluminum piston is to inject liquid aluminum alloy into a metal mold, and the mold is cooled by water cooling at different parts, so that sequential solidification is realized to form a casting. Cooling of the pin bore area is accomplished by passage of cooling water through the mold pin core over time. At present, the cooling of the pin core is enhanced, and two methods of increasing the flow rate of cooling water and prolonging the time of the cooling water are common. Both of these methods have certain drawbacks. The method of increasing the cooling water flow requires modifications to the production plant cooling system. The method for prolonging the cooling water time can cause the problem that the mold cannot be opened due to over-cooling of the pin core.
Disclosure of Invention
The utility model provides the pin core with the reinforced water cooling structure to overcome the defects of the prior art, and the cooling effect of the pin core is optimized, so that the strength of a pin hole area, particularly the strength of the upper end area of the pin hole, is enhanced.
For realizing above-mentioned purpose, design a take water-cooling structure's of strenghthened type round pin core, including round pin core endotheca, round pin core overcoat, its characterized in that: the pin core outer sleeve is sleeved on the outer side of the pin core inner sleeve, a first cooling channel is arranged at the center of the pin core inner sleeve, a second cooling channel is arranged between the pin core inner sleeve and the pin core outer sleeve, an inlet of the first cooling channel is connected with a water inlet joint, the upper part and the middle part of an outlet of the first cooling channel are respectively connected with one end of an upper side water inlet and one end of a front side water inlet, the other end of the upper side water inlet and the other end of the front side water inlet are respectively connected with the second cooling channel, and a water outlet joint is arranged on the upper part of the second cooling channel.
The upper part of the outer side of the pin core inner sleeve is provided with an upper side retainer ring.
The upper side retainer ring is of a semicircular structure.
The pin core inner sleeve and the upper side retainer ring are of an integrated structure.
One end of the water outlet joint is positioned at the upper part in the pin core outer sleeve, and the other end of the water outlet joint penetrates through the upper end of the pin core outer sleeve and is positioned at the outer side of the pin core outer sleeve.
The shape of the water outlet joint is L-shaped.
And one end of the outer side of the pin core outer sleeve is provided with an anti-reverse pin.
Compared with the prior art, the pin core cooling structure is simple in structure and convenient to machine, and optimizes the cooling effect of the pin core, so that the strength of the pin hole area, particularly the upper end area of the pin hole, is enhanced.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention.
Fig. 2 is a perspective view of the present invention.
Referring to fig. 1 to 2, wherein 1 is a water inlet joint, 2 is a pin core inner sleeve, 3 is a pin core outer sleeve, 4 is a water outlet joint, 5 is an upper retainer ring, 6 is an upper water inlet, 7 is a front side water inlet, 8 is an anti-reverse pin, 9 is a first cooling channel, and 10 is a second cooling channel.
Detailed Description
The utility model is further illustrated below with reference to the accompanying drawings.
As shown in fig. 1 to 2, a pin core outer sleeve 3 is sleeved outside a pin core inner sleeve 2, a first cooling channel 9 is arranged at the center of the pin core inner sleeve 2, a second cooling channel 10 is arranged between the pin core inner sleeve 2 and the pin core outer sleeve 3, an inlet of the first cooling channel 9 is connected with a water inlet joint 1, an upper water inlet 6 and one end of a front water inlet 7 are respectively connected with the upper part and the middle part of an outlet of the first cooling channel 9, the other end of the upper water inlet 6 and the other end of the front water inlet 7 are respectively connected with the second cooling channel 10, and a water outlet joint 4 is arranged at the upper part of the second cooling channel 10.
The upper part of the outer side of the pin core inner sleeve 2 is provided with an upper side retainer ring 5.
The upper retainer ring 5 is of a semicircular structure.
The pin core inner sleeve 2 and the upper side retainer ring 5 are of an integrated structure.
One end of the water outlet joint 4 is positioned at the inner upper part of the pin core outer sleeve 3, and the other end of the water outlet joint 4 penetrates through the upper end of the pin core outer sleeve 3 and is positioned at the outer side of the pin core outer sleeve 3.
The shape of the water outlet joint 4 is L-shaped.
And one end of the outer side of the pin core outer sleeve 3 is provided with an anti-reverse pin 8.
When the cooling water pipe is used, cooling water enters a first cooling channel 9 in the pin core inner sleeve 2 through the water inlet joint 1, then enters a second cooling channel 10 between the pin core inner sleeve 2 and the pin core outer sleeve 3 through the upper side water inlet 6 and the front side water inlet 7, takes away heat of the pin core, and finally flows into a system water return pipe through the water outlet joint 4.
The upper retainer ring 5 is integrally processed when the pin core inner sleeve 2 is processed by a die. When the cooling water reaches the water outlet joint 4 along the second cooling channel 10, the existence of the upper side retainer ring 5 enables the cooling water to flow out in a blocking manner, the passing speed of the cooling water is slowed down, and the upper side of the pin core is always in a full state of the cooling water.
The upside water inlet 6 ensures that the upside of the pin core can be cooled more quickly and continuously after cooling water enters the pin core, takes away heat on the upper side of the pin hole of the casting, reduces the temperature of a die on the upper side of the pin core, strengthens the cooling effect of the pin core, refines the metallographic structure of the pin hole and improves the strength of the pin hole.
The anti-reverse pin outside the pin core outer sleeve 3 plays a role in preventing reverse. When the pin core is installed, the pin core can be ensured to be assembled into a correct installation position.
The pin core cooling structure is simple in structure and convenient to process, and optimizes the cooling effect of the pin core by optimizing the structure of the pin core inner sleeve, so that the strength of a pin hole area, particularly the strength of the upper end area of the pin hole, is enhanced.
Claims (7)
1. The utility model provides a take water-cooling structure's round pin core, includes round pin core endotheca, round pin core overcoat, its characterized in that: the pin core outer sleeve (3) is sleeved on the outer side of the pin core inner sleeve (2), a first cooling channel (9) is arranged at the center of the pin core inner sleeve (2), a second cooling channel (10) is arranged between the pin core inner sleeve (2) and the pin core outer sleeve (3), an inlet of the first cooling channel (9) is connected with a water inlet joint (1), the upper part and the middle part of an outlet of the first cooling channel (9) are respectively connected with an upper side water inlet (6) and a front side water inlet (7), the other end of the upper side water inlet (6) and the front side water inlet (7) is respectively connected with the second cooling channel (10), and a water outlet joint (4) is arranged on the upper part of the second cooling channel (10).
2. The pin core with the reinforced water-cooling structure of claim 1, wherein: the upper part of the outer side of the pin core inner sleeve (2) is provided with an upper side retainer ring (5).
3. The pin core with the reinforced water-cooling structure of claim 2, wherein: the upper side retainer ring (5) is of a semicircular structure.
4. The pin core with the reinforced water-cooling structure of claim 1 or 2, wherein: the pin core inner sleeve (2) and the upper side retainer ring (5) are of an integrated structure.
5. The pin core with the reinforced water-cooling structure of claim 1, wherein: one end of the water outlet joint (4) is positioned at the inner upper part of the pin core outer sleeve (3), and the other end of the water outlet joint (4) penetrates through the upper end of the pin core outer sleeve (3) and is positioned at the outer side of the pin core outer sleeve (3).
6. The pin core with the reinforced water-cooling structure of claim 1 or 5, wherein: the shape of the water outlet joint (4) is L-shaped.
7. The pin core with the reinforced water-cooling structure of claim 1, wherein: and one end of the outer side of the pin core outer sleeve (3) is provided with an anti-reverse pin (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121801840.XU CN215879830U (en) | 2021-08-04 | 2021-08-04 | Pin core with reinforced water cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121801840.XU CN215879830U (en) | 2021-08-04 | 2021-08-04 | Pin core with reinforced water cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215879830U true CN215879830U (en) | 2022-02-22 |
Family
ID=80344061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121801840.XU Active CN215879830U (en) | 2021-08-04 | 2021-08-04 | Pin core with reinforced water cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215879830U (en) |
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2021
- 2021-08-04 CN CN202121801840.XU patent/CN215879830U/en active Active
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