CN211819696U - Expansion-preventing piston with built-in heat dissipation column - Google Patents
Expansion-preventing piston with built-in heat dissipation column Download PDFInfo
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- CN211819696U CN211819696U CN202020167428.6U CN202020167428U CN211819696U CN 211819696 U CN211819696 U CN 211819696U CN 202020167428 U CN202020167428 U CN 202020167428U CN 211819696 U CN211819696 U CN 211819696U
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- heat dissipation
- piston
- expansion
- built
- expander
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Abstract
The utility model discloses an anti-expansion piston of built-in heat dissipation post, include: piston base member, prevent expander and heat dissipation post, be provided with the cavity in the piston base member, piston base member lower part symmetry is provided with the round pin hole seat that extends to the cavity in, it is pre-buried in the inner wall of piston base member to prevent the expander, prevent that the fixed connecting block that extends to the cavity that is provided with on the expander, the heat dissipation post sets up the end at the connecting block, heat dissipation top of the post top indent is provided with the oil storage hole, the heat dissipation bottom of the column portion sets up the oil drip hole with the oil storage hole intercommunication, prevent the expander and the piston base member top that just is located the round pin hole seat with one heart mutually, the top surface and the bottom surface of preventing the expander all are provided. In this way, the utility model provides a built-in heat dissipation post prevent expanding piston through setting up the heat dissipation post, can utilize the oil storage hole to carry out the temporary storage of lubricating oil respectively, promotes the radiating effect.
Description
Technical Field
The utility model relates to a piston technical field especially relates to an anti-expansion piston of built-in heat dissipation post.
Background
The automobile piston is better than the center part of an automobile engine and is used for bearing gas pressure, a connecting rod is driven by a piston pin to drive a crankshaft to rotate, and the top of the piston is also a component of a combustion chamber, so that the automobile piston occupies an extremely important position when the engine runs.
The aluminum alloy piston is light in weight and beneficial to reducing the energy consumption of an engine, but the aluminum alloy piston has a high thermal expansion coefficient, is easy to expand under a high-temperature environment to accelerate abrasion, and reduces the service life of the engine.
In recent years, the engine has been strengthened more and more, and the engine speed, the average effective pressure and the piston average speed have been improved more and more than before, so that the thermal load and the mechanical load of the engine have been increased. The heat dissipation effect of the piston is not enhanced, the temperature rises under the high-strength working condition, fatigue deformation is easier, and heat dissipation needs to be enhanced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a built-in heat dissipation post prevent expanding piston to solve the problem that exists among the background art.
In order to solve the technical problem, the utility model discloses a technical scheme be: an anti-expansion piston with a built-in heat dissipation post is provided, comprising: piston base member, prevent expander and heat dissipation post, be provided with the cavity in the piston base member, piston base member lower part symmetry is provided with the round pin hole seat that extends to the cavity in, it is pre-buried in the inner wall of piston base member to prevent the expander, prevent that the fixed connecting block that extends to the cavity that is provided with on the expander, the heat dissipation post sets up the end at the connecting block, heat dissipation top of the post top indent is provided with the oil storage hole, the heat dissipation bottom of the column portion sets up the oil drip hole with the oil storage hole intercommunication, prevent the expander and the piston base member top that just is located the round pin hole seat with one heart mutually, the top surface and the bottom surface of preventing the expander all are provided.
In a preferred embodiment of the present invention, the concave structure is a rectangular groove, and the top surface and the bottom surface of the anti-expansion ring are both provided with at least 3 rectangular grooves.
In a preferred embodiment of the present invention, the concave structure is a triangular groove, and the top surface and the bottom surface of the anti-expansion ring are both provided with at least 3 triangular grooves.
In a preferred embodiment of the present invention, the number of the heat-dissipating studs is at least 2.
In a preferred embodiment of the present invention, one end of the connecting block is welded to the expansion-preventing ring, and the other end of the connecting block is welded to the heat-dissipating stud.
In a preferred embodiment of the present invention, a pin shaft mounting hole is provided in the pin shaft seat, and a snap spring mounting groove is provided in the pin shaft mounting hole.
In a preferred embodiment of the present invention, the piston base and the pin hole seat are an integrated cast aluminum structure.
In a preferred embodiment of the present invention, the piston base body is provided with a gas ring groove and an oil ring groove on the outer circumference, and the gas ring groove is located above the oil ring groove.
The utility model has the advantages that: the utility model discloses an anti-expansion piston with a built-in heat dissipation column, through setting up the heat dissipation column, can utilize the oil storage hole to carry out the temporary storage of lubricating oil respectively, promote the radiating effect; the expansion ring is embedded into the piston base body through the closed-loop structure, so that the structure reinforcement of the piston base body is realized, the concave structure is arranged on the top surface and the low surface of the expansion ring, and the combination effect of the expansion ring and the piston base body is enhanced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced 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 without inventive work, wherein:
FIG. 1 is a schematic structural diagram of an embodiment 1 of an anti-expansion piston with a built-in heat dissipation column according to the present invention;
FIG. 2 is a schematic view of the anti-expansion ring, the connecting block and the heat-dissipating stud;
fig. 3 is a schematic structural diagram of embodiment 2 of the expansion-preventing piston with a built-in heat-dissipating column according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1:
referring to fig. 1-2, an embodiment of the present invention includes:
an anti-expansion piston with a built-in heat-dissipating stud, comprising: piston base member 1, prevent expander 2 and heat dissipation post 3, be provided with cavity 4 in the piston base member 1, 1 lower part symmetry of piston base member is provided with the pinhole seat 5 that extends to the cavity, be provided with round pin axle mounting hole 6 in the pinhole seat 5, support the both ends of round pin axle, be provided with jump ring mounting groove 7 in the round pin axle mounting hole 6, make things convenient for the installation of jump ring, carry on spacingly to the both ends of round pin axle, avoid axial to slide.
Prevent that expander 2 is pre-buried in the inner wall of piston base member 1, prevent that expander 2 goes up the fixed connecting block 8 that extends to in the cavity 4 that is provided with, heat dissipation post 3 sets up the end at connecting block 8, heat dissipation post 3 is provided with 2 at least.
The top of the heat dissipation column 3 is concavely provided with an oil storage hole 31, and the bottom of the heat dissipation column 3 is provided with an oil drip hole 32 communicated with the oil storage hole 31. The oil storage hole 31 can be used for temporarily storing lubricating oil when the piston moves, and the heat dissipation effect is improved. The diameter of the oil storage hole 31 is larger than that of the oil drip hole 32. The oil dropping hole 32 has a small diameter, and can slowly drop the lubricating oil to refresh the lubricating oil in the oil storage hole 31.
Prevent the expander 2 and be located the top of pinhole seat 5 with piston base member 1 is mutually concentric, the top surface and the bottom surface of preventing expander 2 all are provided with the indent structure, the indent structure is rectangle recess 9, and the top surface and the bottom surface of preventing the expander all are provided with 3 at least rectangle recesses 9. Prevent that expander 2 puts into the mould, carries out the casting of piston base member 1, and partial cast aluminium material gets into and fills in the rectangle recess 9, has strengthened the combination effect of preventing expander 2 and piston base member 1, on preventing expander 2's the basis of expanding, utilizes rectangle recess 9 to the spacing of partial cast aluminium material, promotes the effect of restraineing the expansion of piston base member 1 lateral wall.
One end of the connecting block 8 and the anti-expansion ring 2 are fixedly welded, and the other end of the connecting block 8 and the heat dissipation column 3 are fixedly welded.
The piston base body 1 and the pin hole base 5 are of an integrated cast aluminum structure, and are light in weight, high in structural strength and beneficial to reducing the energy consumption of an engine.
The anti-expansion ring 2 can be made of a high-temperature deformation resistant iron-nickel alloy material, is good in high-temperature expansion resistance effect, strengthens and binds the structure of the piston base body 1, inhibits the problem of high-temperature expansion deformation of the piston base body 1, and the heat dissipation column 3 and the connecting block 8 are made of the same material as the anti-expansion ring 2.
Be provided with gas ring groove 10 and oil ring groove 11 on the excircle of piston base member 1, gas ring groove 10 is located the top of oil ring groove 11, carries out the installation of gas ring and oil ring respectively, promotes piston motion's gas tightness, reduces the machine oil loss.
Example 2:
referring to fig. 3, the embodiment 2 of the present invention is basically similar to the embodiment 1 in structure, and the only difference is that the concave structure is a triangular groove 12, and the top surface and the bottom surface of the anti-expansion ring are both provided with at least one triangular groove, the anti-expansion ring is placed in the mold, the piston base body 1 is cast, and a part of the cast aluminum material enters the triangular groove 14 for filling, so as to enhance the combination effect of the anti-expansion ring and the piston base body 1.
In summary, the anti-expansion piston with the built-in heat dissipation column provided by the utility model can utilize the oil storage hole to temporarily store lubricating oil respectively by arranging the heat dissipation column, thereby improving the heat dissipation effect; the expansion ring is embedded into the piston base body through the closed-loop structure, so that the structure reinforcement of the piston base body is realized, the concave structure is arranged on the top surface and the low surface of the expansion ring, and the combination effect of the expansion ring and the piston base body is enhanced.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.
Claims (8)
1. An anti-expansion piston with a built-in heat dissipation column, comprising: piston base member, prevent expander and heat dissipation post, be provided with the cavity in the piston base member, piston base member lower part symmetry is provided with the round pin hole seat that extends to the cavity in, it is pre-buried in the inner wall of piston base member to prevent the expander, prevent that the fixed connecting block that extends to the cavity that is provided with on the expander, the heat dissipation post sets up the end at the connecting block, heat dissipation top of the post top indent is provided with the oil storage hole, the heat dissipation bottom of the column portion sets up the oil drip hole with the oil storage hole intercommunication, prevent the expander and the piston base member top that just is located the round pin hole seat with one heart mutually, the top surface and the bottom surface of preventing the expander all are provided.
2. The anti-expansion piston with the built-in heat dissipation column as recited in claim 1, wherein the concave structure is a rectangular groove, and at least 3 rectangular grooves are arranged on the top surface and the bottom surface of the anti-expansion ring.
3. The anti-expansion piston with the built-in heat dissipation post as recited in claim 1, wherein the concave structure is a triangular groove, and at least 3 triangular grooves are arranged on the top surface and the bottom surface of the anti-expansion ring.
4. The anti-expansion piston with built-in heat dissipation post according to claim 1, wherein at least 2 heat dissipation posts are provided.
5. The expansion-preventing piston with the built-in heat-dissipating column according to claim 1, wherein one end of the connecting block is welded to the expansion-preventing ring, and the other end of the connecting block is welded to the heat-dissipating column.
6. The anti-expansion piston with the built-in heat dissipation column as recited in claim 1, wherein a pin shaft mounting hole is formed in the pin shaft seat, and a snap spring mounting groove is formed in the pin shaft mounting hole.
7. The anti-expansion piston with built-in heat-dissipating stud as claimed in claim 1, wherein the piston base and the pin boss are of an integrated cast aluminum structure.
8. The anti-expansion piston with a built-in heat dissipation post as set forth in claim 1, wherein a gas ring groove and an oil ring groove are provided on an outer circumference of said piston base body, said gas ring groove being located above said oil ring groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020167428.6U CN211819696U (en) | 2020-02-13 | 2020-02-13 | Expansion-preventing piston with built-in heat dissipation column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020167428.6U CN211819696U (en) | 2020-02-13 | 2020-02-13 | Expansion-preventing piston with built-in heat dissipation column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211819696U true CN211819696U (en) | 2020-10-30 |
Family
ID=72992789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020167428.6U Expired - Fee Related CN211819696U (en) | 2020-02-13 | 2020-02-13 | Expansion-preventing piston with built-in heat dissipation column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211819696U (en) |
-
2020
- 2020-02-13 CN CN202020167428.6U patent/CN211819696U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20201030 Termination date: 20210213 |