CN208534639U - A kind of first cylinder-piston - Google Patents
A kind of first cylinder-piston Download PDFInfo
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- CN208534639U CN208534639U CN201821252957.5U CN201821252957U CN208534639U CN 208534639 U CN208534639 U CN 208534639U CN 201821252957 U CN201821252957 U CN 201821252957U CN 208534639 U CN208534639 U CN 208534639U
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- piston
- hole
- convex platform
- inner convex
- oil groove
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Abstract
The utility model discloses a kind of first cylinder-piston, including piston only, the head of piston only is equipped with piston hole, and the tail portion of piston only is equipped with bulb hole, and the head of piston only is equipped with several oil return holes being distributed by even circumferential for being through to piston hole.By the way that longitudinal oil groove is arranged in piston hole, so as to improve the oil circulation of axial direction in piston hole, and annular oil groove is set in piston hole, the oil circulation of radial direction in piston hole can be improved, and annular oil groove and longitudinal oil groove intertexture are distributed, and oil groove is communicated with an oil return hole longitudinally in each, so as to improve the oil return rate in piston hole；It is equipped with inner convex platform in piston hole bottom, forms limiting slot between inner convex platform and piston hole, the elastic ring contradicted with piston hole hole wall is equipped in limiting slot, for limiting slot for installing spring, elastic ring plays snap action to spring, increases the stability of spring；It is provided with reinforcement part on the table top of inner convex platform, so as to improve the table top intensity of inner convex platform.
Description
Technical field
The utility model relates to a kind of piston technical fields, more specifically, it relates to the cylinder-piston living of one kind first.
Background technique
Piston is the heart of automobile engine, bears the mechanical load and thermic load of alternation, is operating condition in engine
One of worst key components and parts.The function of piston is subject to gas pressure, and is transmitted to connecting rod driving by piston pin and makes song
The component part of axis rotation, top land or combustion chamber.Piston is generally divided into three head, tail portion and piston boss parts.
Since piston long-term work is among rugged environment, it is therefore desirable to there is enough machine oil to carry out sufficient lubrication, from
And piston is protected, guarantee service life and the power of engine, reduce noise, although existing piston also has design oil return hole, returns
Oilhole is unidirectional design, leads to the efficiency deficiency that flows back, and vacuum booster bulb mandril can generate impact to bulb hole in use,
Therefore it need to change the interior design of bulb hole, make it have buffer function, improve structural strength.
Summary of the invention
In view of the deficienciess of the prior art, that the purpose of this utility model is to provide a kind of oil returns is high-efficient, structure is strong
The first cylinder-piston spent.
To achieve the above object, the utility model provides following technical solution: a kind of first cylinder-piston, including piston
Ontology, the head of piston only are equipped with piston hole, and the tail portion of piston only is equipped with bulb hole, and the head of piston only is equipped with several
It is through to the oil return hole of piston hole being distributed by even circumferential.Several axial directions with piston only are provided in the piston hole
Centered on equally distributed longitudinal oil groove, and several annular oil grooves are provided in the piston hole, the annular oil groove
Interweave with longitudinal oil groove and is distributed；It is equipped with inner convex platform in the piston hole bottom, forms limiting slot between inner convex platform and piston hole,
It is equipped with the elastic ring contradicted with piston hole hole wall in limiting slot, is provided with reinforcement part on the table top of the inner convex platform, and
The platform central position of the inner convex platform is provided with buffer part.
By using above-mentioned technical proposal, longitudinal oil groove is set in piston hole, so as to improve axial direction side in piston hole
To oil circulation, and annular oil groove is set in piston hole, the oil circulation of radial direction in piston hole, and annular can be improved
Oil groove and longitudinal oil groove, which interweave, to be distributed, and oil groove is communicated with an oil return hole longitudinally in each, so as to improve in piston hole
Oil return rate；It is equipped with inner convex platform in piston hole bottom, limiting slot is formed between inner convex platform and piston hole, is equipped with and work in limiting slot
The elastic ring that consent hole wall contradicts, for limiting slot for installing spring, elastic ring plays snap action to spring, increases the steady of spring
It is qualitative；It is provided with reinforcement part on the table top of inner convex platform, so as to improve the table top intensity of inner convex platform, and in the table top of inner convex platform
Center is provided with buffer part, to further improve the integral strength of inner convex platform.
The utility model is further arranged to: the bulb hole includes the cylindrical portion, tapered portion and semi-spherical portion being sequentially communicated,
By reinforcing arc connection between the cylindrical portion and tapered portion and tapered portion and semi-spherical portion；And it is set in the bulb hole
It is equipped with enhancement layer, the enhancement layer is electroplated layer.
By using above-mentioned technical proposal, bulb hole includes the cylindrical portion, tapered portion and semi-spherical portion being sequentially communicated, cylindrical portion
It is connect by reinforcing arc between tapered portion and tapered portion and semi-spherical portion, to can ensure that cylindrical portion and tapered portion and tapered portion
Bonding strength between semi-spherical portion；And it is provided with enhancement layer in bulb hole, the pore wall strength in bulb hole can be improved, and reduce
The abrasion in bulb hole, so as to improve the service life of piston only.
The utility model is further arranged to: the head of the piston only is provided with clamping part, the clamping
Portion is successively made of the first clamping wall, transition arcs wall and the second clamping wall, and the second folder of clamping part is arranged in the oil return hole
It holds on wall.
By using above-mentioned technical proposal, the head of piston only is provided with clamping part, so as to improve piston only
Fixing intensity.
The utility model is further arranged to: in the outer surface protective coating of the piston only.
Piston only outer surface can be improved in the outer surface protective coating of piston only by using above-mentioned technical proposal
Surface strength, to further improve the practicability of piston only.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Fig. 2 is the cross-sectional view in Fig. 1 at A-A；
Fig. 3 be I in Fig. 1 at partial enlarged view；
Label and corresponding component names in attached drawing: 1- piston only, 2- piston hole, 3- bulb hole, 3a- cylindrical portion, 3b-
Tapered portion, 3c- semi-spherical portion, 3d- reinforce arc, 4- oil return hole, the longitudinal direction 5- oil groove, 6- annular oil groove, 7- inner convex platform, 8- limiting slot,
9- elastic ring, 10- reinforcement part, 11- buffer part, 12- enhancement layer, 13- clamping part, the first clamping wall of 13a-, 13b- transition arcs wall,
The second clamping wall of 13c-, 14- protective coating.
Specific embodiment
It is described further referring to figs. 1 to the one embodiment of Fig. 3 to the utility model.
The head of a kind of first cylinder-piston, including piston only 1, piston only 1 is equipped with piston hole 2, piston only 1
Tail portion is equipped with bulb hole 3, and the head of piston only 1 is equipped with several oil return holes being distributed by even circumferential for being through to piston hole 2
4.Several longitudinal direction oil grooves 5 equally distributed centered on the axial direction of piston only 1 are provided in the piston hole 2, and in institute
Several annular oil grooves 6 are provided in the piston hole 2 stated, the annular oil groove 6 and longitudinal oil groove 5, which interweave, to be distributed；Described
2 bottom of piston hole is equipped with inner convex platform 7, forms limiting slot 8 between inner convex platform 7 and piston hole 2, is equipped with and piston hole 2 in limiting slot 8
The elastic ring 9 that hole wall contradicts, is provided with reinforcement part 10, and in the platform of the inner convex platform 7 on the table top of the inner convex platform 7
Face center is provided with the buffer part 11 that material is silicon rubber.
By the way that longitudinal oil groove 5 is arranged in piston hole 2, so as to improve the oil circulation of axial direction in piston hole 2, and
Annular oil groove 6 is set in piston hole 2, the oil circulation of radial direction in piston hole 2, and annular oil groove 6 and longitudinal direction can be improved
Oil groove 5, which interweaves, to be distributed, and oil groove 5 is communicated with an oil return hole 4 longitudinally in each, so as to improve the speed of the oil return in piston hole 2
Rate；It is equipped with inner convex platform 7 in 2 bottom of piston hole, limiting slot 8 is formed between inner convex platform 7 and piston hole 2, is equipped with and work in limiting slot 8
The elastic ring 9 that 2 hole wall of consent contradicts, limiting slot 8 play snap action to spring for installing spring, elastic ring 9, increase spring
Stability；Reinforcement part 10 is provided on the table top of inner convex platform 7, so as to improve the table top intensity of inner convex platform 7, and in convex
The platform central position of platform 7 is provided with buffer part 11, to further improve the integral strength of inner convex platform 7.
The bulb hole 3 include the cylindrical portion 3a, the tapered portion 3b that are sequentially communicated and semi-spherical portion 3c, the cylindrical portion 3a with
By reinforcing arc 3d connection between tapered portion 3b and tapered portion 3b and semi-spherical portion 3c；And it is provided in the bulb hole 3
Enhancement layer 12, the enhancement layer 12 are electroplated layer.Between cylindrical portion 3a and tapered portion 3b and tapered portion 3b and semi-spherical portion 3c
By reinforcing arc 3d connection, to can ensure that the connection between cylindrical portion 3a and tapered portion 3b and tapered portion 3b and semi-spherical portion 3c is strong
Degree；And enhancement layer 12 is provided in bulb hole 3, the pore wall strength in bulb hole 3 can be improved, and reduce the abrasion in bulb hole 3, from
And the service life of piston only 1 can be improved.
The head of the piston only 1 is provided with clamping part 13, the clamping part 13 is successively by the first clamping wall
The second clamping wall 13c of clamping part 13 is arranged in 13a, transition arcs wall 13b and the second clamping wall 13c composition, the oil return hole 4
On.By being provided with clamping part 13 on the head of piston only 1, so as to improve the fixing intensity of piston only 1.
In the outer surface protective coating 14 of the piston only 1.Pass through the outer surface protective coating in piston only 1
14, the surface strength of 1 outer surface of piston only can be improved, to further improve the practicability of piston only 1.
Above-described embodiment is only the preferred embodiment of the utility model, not limits the protection model of the utility model according to this
It encloses, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by the protection of the utility model
Within the scope of.
Claims (4)
1. the head of a kind of first cylinder-piston, including piston only (1), piston only (1) is equipped with piston hole (2), piston sheet
The tail portion of body is equipped with bulb hole (3), and the head of piston only (1) is through to dividing by even circumferential for piston hole (2) equipped with several
The oil return hole (4) of cloth, it is characterized in that: being provided in the piston hole (2) several equal centered on the axial direction of piston only (1)
Longitudinal oil groove (5) of even distribution, and several annular oil grooves (6), the annular oil groove are provided in the piston hole (2)
(6) interweave with longitudinal oil groove (5) and be distributed, and the oil groove longitudinally in each (5) is communicated with an oil return hole (4)；Described
Piston hole (2) bottom be equipped with inner convex platform (7), between inner convex platform (7) and piston hole (2) formation limiting slot (8), limiting slot (8)
It is interior equipped with the elastic ring (9) contradicted with piston hole (2) hole wall, be provided with reinforcement part on the table top of the inner convex platform (7)
(10), buffer part (11) and in the platform central position of the inner convex platform (9) are provided with.
2. a kind of first cylinder-piston according to claim 1, it is characterized in that: the bulb hole (3) includes being sequentially communicated
Cylindrical portion (3a), tapered portion (3b) and semi-spherical portion (3c), the cylindrical portion (3a) and tapered portion (3b) and tapered portion (3b)
It is connect by reinforcing arc (3d) between semi-spherical portion (3c)；And enhancement layer (12) are provided in the bulb hole (3).
3. a kind of first cylinder-piston according to claim 2, it is characterized in that: on the head of the piston only (1)
It is provided with clamping part (13), the clamping part (13) is successively by the first clamping wall (13a), transition arcs wall (13b) and the second folder
Wall (13c) composition is held, the oil return hole (4) is arranged on the second clamping wall (13c) of clamping part (13).
4. a kind of first cylinder-piston according to claim 2, it is characterized in that: in the appearance of the piston only (1)
Face protective coating (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821252957.5U CN208534639U (en) | 2018-08-04 | 2018-08-04 | A kind of first cylinder-piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821252957.5U CN208534639U (en) | 2018-08-04 | 2018-08-04 | A kind of first cylinder-piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208534639U true CN208534639U (en) | 2019-02-22 |
Family
ID=65386660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821252957.5U Active CN208534639U (en) | 2018-08-04 | 2018-08-04 | A kind of first cylinder-piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208534639U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898492A (en) * | 2021-10-09 | 2022-01-07 | 常州中车柴油机零部件有限公司 | Large-cylinder-diameter forged steel piston and manufacturing method thereof |
-
2018
- 2018-08-04 CN CN201821252957.5U patent/CN208534639U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898492A (en) * | 2021-10-09 | 2022-01-07 | 常州中车柴油机零部件有限公司 | Large-cylinder-diameter forged steel piston and manufacturing method thereof |
| CN113898492B (en) * | 2021-10-09 | 2024-03-29 | 常州中车柴油机零部件有限公司 | Large-cylinder-diameter forged steel piston and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 317600 No. 1 Qiantangyuan South Road, Yucheng Street, Yuhuan City, Taizhou City, Zhejiang Province Patentee after: Dachang Automobile Parts Co., Ltd. Address before: 317600 No. 1 Qiantangyuan South Road, Yucheng Street, Yuhuan County, Taizhou City, Zhejiang Province Patentee before: Taizhou Dachang Auto Parts Co. Ltd. |
|
| CP03 | Change of name, title or address |