CN211819694U - Top structure reinforced expansion-proof piston - Google Patents
Top structure reinforced expansion-proof piston Download PDFInfo
- Publication number
- CN211819694U CN211819694U CN202020167320.7U CN202020167320U CN211819694U CN 211819694 U CN211819694 U CN 211819694U CN 202020167320 U CN202020167320 U CN 202020167320U CN 211819694 U CN211819694 U CN 211819694U
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- CN
- China
- Prior art keywords
- expansion
- piston
- pull rod
- arc
- piston base
- 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.)
- Expired - Fee Related
Links
- 230000002146 bilateral effect Effects 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 abstract description 3
- 230000001629 suppression Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 239000003921 oil Substances 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses an anti-expansion piston that top structure is strengthened, include: piston base member, arc prevent board, top and prevent board, horizontal pull rod, vertical pull rod and slant pull rod that expand, be provided with the cavity in the piston base member, piston base member lower part symmetry is provided with the pinhole seat that extends to the cavity in, the arc prevents that the board bilateral symmetry that expands is pre-buried in the inside wall of piston base member, horizontal pull rod level sets up in the cavity of piston base member, the both ends of horizontal pull rod extend to respectively in the inside wall of piston base member with the arc prevent the board that expands and be connected, the top is prevented the board that expands and is pre-buried in the top inner wall of piston base member, vertical pull rod is provided with many, the top surface and the bottom surface of the board that expand are prevented to the arc all are provided with. In this way, the utility model provides a top structure is strengthened prevents piston that expands draws solid to the board that expands is prevented at the top through slant pull rod, vertical pull rod, has promoted the suppression effect to piston top thermal energy greatly.
Description
Technical Field
The utility model relates to a piston technical field especially relates to an anti-expansion piston that top structure is strengthened.
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.
The top of the aluminum alloy piston is easy to deform due to heating, so that the working volume of the cylinder is changed, and the operation of the engine is influenced
The stability is changed, the mode that adopts thickening aluminum alloy piston top to carry out the enhancement of structure usually, but has increased the dead weight simultaneously by a wide margin, has influenced the installation space of bent axle connecting rod.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides an anti-expansion piston that top structure is strengthened 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: there is provided a roof structure reinforced anti-expansion piston comprising: the piston comprises a piston base body, an arc-shaped anti-expansion plate, a top anti-expansion plate, a transverse pull rod, a vertical pull rod and an oblique pull rod, wherein a cavity is arranged in the piston base body, pin hole seats extending into the cavity are symmetrically arranged at the lower part of the piston base body, the arc-shaped anti-expansion plate is embedded in the inner side wall of the piston base body in a bilateral symmetry manner, the transverse pull rod is horizontally arranged in the cavity of the piston base body, two ends of the transverse pull rod respectively extend into the inner side wall of the piston base body to be connected with the arc-shaped anti-expansion plate, the top anti-expansion plate is embedded in the inner top wall of the piston base body, a plurality of vertical pull rods are arranged, one end of each vertical pull rod is connected with the transverse pull rod, the other end of each vertical pull rod extends into the inner side wall of the piston base body to be connected with the arc-shaped anti-expansion plate, and the other, the top surface and the bottom surface of the arc-shaped anti-expansion plate are both provided with concave structures.
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 arc-shaped expansion-preventing plate 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 arc-shaped expansion-preventing plate are both provided with at least 3 triangular grooves.
In a preferred embodiment of the present invention, the vertical pull rod is provided with at least 3 vertical pull rods.
The utility model discloses a preferred embodiment, through welded fastening between the bloated board is prevented to horizontal pull rod and arc, through welded fastening between the one end of vertical pull rod and the horizontal pull rod, through welded fastening between the bloated board is prevented at the other end of vertical pull rod and top, through welded fastening between the bloated board is prevented to the one end of slant pull rod and arc, through welded fastening between the bloated board is prevented to the other end of slant pull rod and top.
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 provides a top structure is strengthened prevents piston that expands draws solid to the top through slant pull rod, vertical pull rod to prevent the board that expands, has promoted the suppression effect to piston top thermal energy greatly, and further top surface and the low side that prevent the board that expands through in the arc set up the indent structure, strengthen the arc and prevent the combination effect of board and piston base member that expands.
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 view of an embodiment 1 of a top structure reinforced anti-expansion piston of the present invention;
FIG. 2 is a schematic structural view of a cross tie and an arc-shaped expansion prevention plate;
fig. 3 is a schematic structural view of embodiment 2 of an anti-expansion piston with a reinforced top structure 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:
a top structure reinforced anti-expansion piston comprising: the piston comprises a piston base body 1, an arc-shaped expansion-preventing plate 2, a top expansion-preventing plate 3, a transverse pull rod 4, a vertical pull rod 5 and an oblique pull rod 6.
The piston is characterized in that a cavity 7 is formed in the piston base body 1, pin hole seats 8 extending into the cavity 7 are symmetrically arranged on the lower portion of the piston base body 1, and pin shaft mounting holes 9 are formed in the pin hole seats 8 and used for supporting two ends of a pin shaft. Be provided with jump ring mounting groove 10 in the round pin axle mounting hole 9, make things convenient for the installation of jump ring, carry on spacingly to the both ends of round pin axle, avoid axial to slide.
The arc-shaped expansion-preventing plate 2, the transverse pull rod 4, the vertical pull rod 5 and the oblique pull rod 6 are all located above the pin hole seat 8.
The arc prevents that expansion plate 2 bilateral symmetry is pre-buried in the inside wall of piston base member 1, horizontal pull rod 4 level sets up in the cavity of piston base member 1, the both ends of horizontal pull rod 4 extend to respectively in the inside wall of piston base member 1 with the arc prevent that expansion plate 2 is connected, expansion plate 3 is pre-buried in the top inner wall of piston base member 1 is prevented at the top, vertical pull rod 5 is provided with 3, the one end and the horizontal pull rod 4 of vertical pull rod 5 are connected, and the other end extends to and prevents expansion plate 3 with the top in the top inner wall of piston base member 1 and is connected, 6 one end of slant pull rod extends to and prevents expansion plate 2 with the arc in the inside wall of piston base member 1 and is connected, and the other end extends to and prevents expansion plate 3 with the top in the top inner wall of piston base member. The top expansion-proof plate 3 is pulled and fixed through the inclined pull rod 6 and the vertical pull rod 5, and the inhibition effect on the thermal expansion of the top of the piston is greatly improved.
The top surface and the bottom surface of the arc-shaped anti-expansion plate 2 are both provided with an inwards concave structure, the inwards concave structure is a rectangular groove 11, and the top surface and the bottom surface of the arc-shaped anti-expansion plate 2 are both provided with at least 3 rectangular grooves 11. During the mould was put into to the board 2 that expands is prevented to the arc, carries out the casting of piston base member 1, and partial cast aluminium material fills in getting into rectangle recess 11, has strengthened the arc and has prevented the combination effect of board 2 and piston base member 1 that expands, on the arc prevent the board 2 that expands prevent expand the basis, utilize rectangle recess 11 to the spacing of partial cast aluminium material, promote the effect that restraines the expansion of piston base member 1 lateral wall.
The anti-expansion plate is characterized in that the transverse pull rod 4 and the arc-shaped anti-expansion plate 2 are fixed through welding, one end of the vertical pull rod 5 and the transverse pull rod 4 are fixed through welding, the other end of the vertical pull rod 5 and the top anti-expansion plate 3 are fixed through welding, one end of the oblique pull rod 6 and the arc-shaped anti-expansion plate 2 are fixed through welding, and the other end of the oblique pull rod 6 and the top anti-expansion plate 3 are fixed through welding.
The arc-shaped expansion-preventing plate, the top expansion-preventing plate, the transverse pull rod, the vertical pull rod and the oblique pull rod are all made of metal materials with low expansion coefficients, such as iron-nickel alloy, so that the problem of thermal expansion deformation is solved.
The piston base body 1 and the pin hole base 8 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.
Be provided with gas ring groove 12 and oil ring groove 13 on the excircle of piston base member 1, gas ring groove 12 is located oil ring groove 13's top, 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 14, and the top surface and the bottom surface of the arc-shaped expansion-preventing plate 2 are both provided with at least one triangular groove 14, the arc-shaped expansion-preventing plate 2 is placed into a mold to cast the piston base body 1, and a part of cast aluminum material enters the triangular groove 14 to be filled, so as to enhance the combination effect of the arc-shaped expansion-preventing plate 2 and the piston base body 1.
To sum up, the utility model provides a top structure is strengthened prevents expanding piston draws solid to the top through slant pull rod, vertical pull rod to prevent the board that expands, has promoted the suppression effect to piston top thermal energy greatly, and further top surface and the low side that prevent the board that expands through at the arc set up the indent structure, strengthen the arc and prevent the combination effect of board and piston base member.
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 reinforced top structure, comprising: the piston comprises a piston base body, an arc-shaped anti-expansion plate, a top anti-expansion plate, a transverse pull rod, a vertical pull rod and an oblique pull rod, wherein a cavity is arranged in the piston base body, pin hole seats extending into the cavity are symmetrically arranged at the lower part of the piston base body, the arc-shaped anti-expansion plate is embedded in the inner side wall of the piston base body in a bilateral symmetry manner, the transverse pull rod is horizontally arranged in the cavity of the piston base body, two ends of the transverse pull rod respectively extend into the inner side wall of the piston base body to be connected with the arc-shaped anti-expansion plate, the top anti-expansion plate is embedded in the inner top wall of the piston base body, a plurality of vertical pull rods are arranged, one end of each vertical pull rod is connected with the transverse pull rod, the other end of each vertical pull rod extends into the inner side wall of the piston base body to be connected with the arc-shaped anti-expansion plate, and the other, the top surface and the bottom surface of the arc-shaped anti-expansion plate are both provided with concave structures.
2. A structurally reinforced top anti-expansion piston as set forth in claim 1 wherein said concave structure is a rectangular groove and the arcuate anti-expansion plate has at least 3 rectangular grooves in both the top and bottom surfaces thereof.
3. The top reinforced expansion piston of claim 1 wherein the concave structure is a triangular groove and the curved expansion prevention plate has at least 3 triangular grooves on both the top and bottom surfaces.
4. A structurally reinforced top anti-expansion piston as set forth in claim 1 wherein said vertical tie rods are provided with at least 3.
5. The top structure reinforced expansion-proof piston as claimed in claim 1, wherein the transverse tie bar and the arc-shaped expansion-proof plate are fixed by welding, one end of the vertical tie bar and the transverse tie bar are fixed by welding, the other end of the vertical tie bar and the top expansion-proof plate are fixed by welding, one end of the oblique tie bar and the arc-shaped expansion-proof plate are fixed by welding, and the other end of the oblique tie bar and the top expansion-proof plate are fixed by welding.
6. A top reinforced expansion piston as set forth in claim 1 wherein said pin hole seat has a pin hole mounting slot therein and said pin hole mounting slot has a snap spring mounting slot therein.
7. The top structurally reinforced expansion piston of claim 1 wherein the piston base and pin bore seat are of a unitary cast aluminum construction.
8. The top reinforced expansion piston of claim 1 wherein the outer circumference of the piston base is provided with a gas ring groove and an oil ring groove, the gas ring groove being located above the oil ring groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020167320.7U CN211819694U (en) | 2020-02-13 | 2020-02-13 | Top structure reinforced expansion-proof piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020167320.7U CN211819694U (en) | 2020-02-13 | 2020-02-13 | Top structure reinforced expansion-proof piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211819694U true CN211819694U (en) | 2020-10-30 |
Family
ID=72992961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020167320.7U Expired - Fee Related CN211819694U (en) | 2020-02-13 | 2020-02-13 | Top structure reinforced expansion-proof piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211819694U (en) |
-
2020
- 2020-02-13 CN CN202020167320.7U patent/CN211819694U/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 |