CN209855915U - Split assembled piston with compact structure - Google Patents
Split assembled piston with compact structure Download PDFInfo
- Publication number
- CN209855915U CN209855915U CN201920447707.5U CN201920447707U CN209855915U CN 209855915 U CN209855915 U CN 209855915U CN 201920447707 U CN201920447707 U CN 201920447707U CN 209855915 U CN209855915 U CN 209855915U
- Authority
- CN
- China
- Prior art keywords
- pin shaft
- piston
- shaft fixing
- fixing seats
- base body
- 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
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a compact components of a whole that can function independently equipment piston of structure, it includes: the piston comprises a piston base body, a pin shaft and pin shaft fixing seats, wherein the pin shaft is arranged between the pin shaft fixing seats on two sides, the pin shaft fixing seats are of cylindrical structures, through holes corresponding to the pin shaft fixing seats are symmetrically formed in two sides of the lower portion of the piston base body, an annular groove is formed in the outer circle of each pin shaft fixing seat, a threaded hole pointing to the annular groove is formed in the bottom of the piston base body, a guide hole vertically communicated with the through holes is formed in the top of the threaded hole, a stud is arranged in the threaded hole, and a positioning column penetrating through the guide hole and extending. Compact components of a whole that can function independently equipment piston of structure, utilize the cooperation of reference column and ring channel to realize the axial positioning to round pin axle fixing base, the structure is succinct, it is convenient to dismantle, the cooperation is inseparable moreover, the structure is compact, the stability in use is high.
Description
Technical Field
The utility model relates to a piston technical field especially relates to a compact components of a whole that can function independently equipment piston of structure.
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.
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. After the piston damages, can change or maintain, but whole change with high costs, and the structure of components of a whole that can function independently piston is complicated, and the equipment is more loaded down with trivial details, has influenced the dismantlement convenience when maintaining, and the structure is not compact enough moreover, and is easy to warp in the long-term violent piston motion.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a compact components of a whole that can function independently equipment piston of structure promotes the convenience of dismantling and equipment, ensures the stability and the compactibility of structure.
To achieve the purpose, the utility model adopts the following technical proposal:
a split piston of compact construction comprising: the piston comprises a piston base body, a pin shaft and pin shaft fixing seats, wherein the pin shaft fixing seats are symmetrically arranged on the lower portion of the piston base body, the pin shaft is arranged between the pin shaft fixing seats on two sides, the pin shaft fixing seats are of cylindrical structures, mounting holes corresponding to the end portions of the pin shaft are formed in the inner ends of the pin shaft fixing seats, through holes corresponding to the pin shaft fixing seats are symmetrically arranged on two sides of the lower portion of the piston base body, annular grooves are formed in the outer circle of the pin shaft fixing seats, threaded holes in the direction of the annular grooves are formed in the bottom of the piston base body, guide holes vertically communicated with the through holes are formed in the tops of the threaded holes, stud bolts.
The diameter of the positioning column corresponds to the width of the annular groove.
And the top of the positioning column is convexly provided with an arc surface.
And a cross groove or a straight groove is formed at the bottom of the stud.
The outer end of the pin shaft fixing seat is provided with a lightening hole communicated with the mounting hole, and the diameter of the mounting hole is larger than that of the lightening hole.
And the outer circle of the piston base body is provided with a gas ring groove and an oil ring groove which are positioned above the through hole.
The utility model has the advantages that: the utility model provides a tight real components of a whole that can function independently equipment piston of structure has adopted cylindrical structure's round pin axle fixing base very much, can follow the through-hole outer end and push in, is quick in piston base member lower part to utilize the cooperation of reference column and ring channel to realize the axial positioning to round pin axle fixing base, the structure is succinct, and it is convenient to dismantle, and the cooperation is inseparable moreover, and the structure is tight real, and stability in use is high.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solution of the present invention is further explained by the specific embodiment with reference to fig. 1.
The split assembled piston having a compact structure as shown in fig. 1 includes: piston base member 1, round pin axle 4 and round pin axle fixing base 3, piston base member 1 adopts the aluminum alloy structure, and inside is provided with cavity 2, reduces the dead weight, promotes the fuel economy of engine.
And an air ring groove 8 and an oil ring groove 5 which are positioned above the through hole 6 are arranged on the excircle of the piston base body 1, and the air ring and the oil ring are respectively installed to ensure the sealing effect.
The hinge pin fixing seats 3 are symmetrically arranged on the lower portion of the piston base body 1, the hinge pins 4 are arranged between the hinge pin fixing seats 3 on the two sides, and mounting holes corresponding to the end portions of the hinge pins 4 are formed in the inner ends of the hinge pin fixing seats 3, so that the installation is convenient.
The pin shaft fixing seat 3 is of a cylindrical structure, through holes 6 corresponding to the pin shaft fixing seat 3 are symmetrically formed in the two sides of the lower portion of the piston base body 1, the pin shaft fixing seat 3 can be pushed into the piston base body 1 from the outer ends of the through holes 6, the matching is tight, and the structure is compact.
Be provided with ring channel 12 on the 3 excircles of round pin axle fixing base, the screw hole 9 in directional ring channel 12 is provided with in 1 bottom of piston base member, screw hole 9 top is provided with the guiding hole that communicates with through-hole 6 is perpendicular, be provided with double-screw bolt 10 in the screw hole 9, double-screw bolt 10 top is provided with and runs through the guiding hole and extend to reference column 11 in ring channel 12, utilizes the cooperation of reference column 11 and ring channel 12, realizes spacing, stable in structure to the axial of round pin axle fixing base 3. The bottom of the stud 10 is provided with a cross groove or a straight groove, so that the stud can be disassembled and assembled by using a screwdriver, and the operation is convenient.
The top of the positioning column 11 is convexly provided with an arc surface so as to conveniently enter the annular groove 12 at the top of the positioning column 11. The diameter of the positioning column 11 corresponds to the width of the annular groove 12, so that the structure is compact.
The outer end of the pin shaft fixing seat 3 is provided with a lightening hole 7 communicated with the mounting hole, the diameter of the mounting hole is larger than that of the lightening hole 7, a step is formed, the end part of the pin shaft 4 is limited, the compactness of the structure is improved, and when the piston moves, part of lubricating oil enters the mounting hole through the lightening hole 7 to lubricate and protect the end part of the pin shaft.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (6)
1. A split piston of compact construction comprising: the piston comprises a piston base body, a pin shaft and pin shaft fixing seats, wherein the pin shaft fixing seats are symmetrically arranged on the lower portion of the piston base body, the pin shaft is arranged between the pin shaft fixing seats on two sides, the pin shaft fixing seats are of a cylindrical structure, mounting holes corresponding to the end portions of the pin shaft are formed in the inner ends of the pin shaft fixing seats, through holes corresponding to the pin shaft fixing seats are symmetrically formed in the two sides of the lower portion of the piston base body, annular grooves are formed in the outer circle of the pin shaft fixing seats, threaded holes in the direction of the annular grooves are formed in the bottom of the piston base body, guide holes vertically communicated with the through holes are formed in the tops of the threaded holes, stud bolts are arranged.
2. The compact split-assembled piston of claim 1, wherein the diameter of the positioning post corresponds to the width of the annular groove.
3. The split assembled piston with the compact structure as claimed in claim 1, wherein the top of the positioning column is provided with a circular arc surface in a protruding way.
4. The split assembled piston with the compact structure as claimed in claim 1, wherein the bottom of the stud is provided with a cross groove or a straight groove.
5. The split assembled piston with a compact structure according to claim 1, wherein the outer end of the pin shaft fixing seat is provided with a lightening hole communicated with the mounting hole, and the diameter of the mounting hole is larger than that of the lightening hole.
6. The split assembled piston with a compact structure according to claim 1, wherein an outer circumference of the piston base body is provided with a gas ring groove and an oil ring groove which are located above the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920447707.5U CN209855915U (en) | 2019-04-04 | 2019-04-04 | Split assembled piston with compact structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920447707.5U CN209855915U (en) | 2019-04-04 | 2019-04-04 | Split assembled piston with compact structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209855915U true CN209855915U (en) | 2019-12-27 |
Family
ID=68936267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920447707.5U Expired - Fee Related CN209855915U (en) | 2019-04-04 | 2019-04-04 | Split assembled piston with compact structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209855915U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828193A (en) * | 2020-06-05 | 2020-10-27 | 东风柳州汽车有限公司 | Piston assembly and internal combustion engine |
-
2019
- 2019-04-04 CN CN201920447707.5U patent/CN209855915U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828193A (en) * | 2020-06-05 | 2020-10-27 | 东风柳州汽车有限公司 | Piston assembly and internal combustion engine |
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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 |
Granted publication date: 20191227 Termination date: 20210404 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |