CN212177288U - Assembly piston based on shaft sleeve - Google Patents
Assembly piston based on shaft sleeve Download PDFInfo
- Publication number
- CN212177288U CN212177288U CN202020757251.5U CN202020757251U CN212177288U CN 212177288 U CN212177288 U CN 212177288U CN 202020757251 U CN202020757251 U CN 202020757251U CN 212177288 U CN212177288 U CN 212177288U
- Authority
- CN
- China
- Prior art keywords
- piston
- mounting groove
- mounting hole
- base member
- sleeve
- 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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Abstract
The utility model discloses an equipment piston based on axle sleeve, it includes: piston base member, axle sleeve and barrel, piston base member excircle is provided with round oil ring mounting groove, piston base member excircle is provided with the annular that corresponds with the barrel that is located oil ring mounting groove bottom, the ring bottom extends to piston base member bottom surface, the barrel casing is established in the annular, barrel excircle bilateral symmetry is provided with radial extension's primary shaft cover mounting hole, be provided with in the piston base member with the endocentric secondary shaft cover mounting hole of primary shaft cover mounting hole, the axle sleeve sets up respectively in primary shaft cover mounting hole and extends to in the secondary shaft cover mounting hole. Assembly piston based on axle sleeve, adopt package assembly, the maintenance cost is low, carry out the spacing of oil ring bottom in the oil ring mounting groove through the barrel after the equipment, sound construction has promoted the dismouting convenience and the security of oil ring.
Description
Technical Field
The utility model relates to a piston technical field especially relates to an equipment piston based on axle sleeve.
Background
The piston is used for bearing gas pressure in an automobile engine, 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 and occupies an extremely important position when the engine runs.
The work of piston can not leave the oil ring, and in order to promote the stability of oil ring on the piston, the hole of oil ring is less usually, and the piston is monolithic structure again usually moreover, all need expand during the dismouting, leads to the oil ring to dismantle with the operation of installation more hard, especially makes up the oil ring, easy fish tail piston outer wall during the dismouting, and operating safety is poor moreover.
In addition, because the piston is of an integral structure, the piston is difficult to repair after being partially damaged, needs to be integrally replaced, has high maintenance cost and needs to be improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an equipment piston based on axle sleeve reduces the maintenance cost, promotes oil ring dismouting convenience and security.
To achieve the purpose, the utility model adopts the following technical proposal:
a sleeve-based assembled piston, comprising: piston base member, axle sleeve and barrel, piston base member excircle is provided with round oil ring mounting groove, piston base member excircle is provided with the annular that corresponds with the barrel that is located oil ring mounting groove bottom, the ring bottom extends to piston base member bottom surface, the barrel casing is established in the annular, barrel excircle bilateral symmetry is provided with radial extension's primary shaft cover mounting hole, be provided with in the piston base member with the endocentric secondary shaft cover mounting hole of primary shaft cover mounting hole, the axle sleeve sets up respectively in primary shaft cover mounting hole and extends to in the secondary shaft cover mounting hole.
The bottom of the oil ring mounting groove is communicated with the annular groove.
The first shaft sleeve mounting hole is internally provided with a first clamp spring mounting groove positioned at the outer end of the shaft sleeve, and the first clamp spring mounting groove is internally provided with a first clamp spring.
And a second clamp spring mounting groove positioned at the inner end of the shaft sleeve is arranged in the second shaft sleeve mounting hole, and a second clamp spring is arranged in the second clamp spring mounting groove.
The shaft sleeve is provided with a pin shaft mounting hole, and a third clamp spring mounting groove is formed in the pin shaft mounting hole.
And the outer circle of the piston base body is provided with an air ring installation groove positioned above the oil ring installation groove.
The utility model has the advantages that: the utility model provides an equipment piston based on axle sleeve, adopts package assembly, and the maintenance cost is low, and it is spacing that the equipment back carries out oil ring bottom in the oil ring mounting groove through the barrel, and sound construction has promoted the dismouting convenience and the security of oil ring.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of the piston base body in fig. 1.
Detailed Description
The technical solution of the present invention is further explained by the specific embodiment with reference to fig. 1 to fig. 2.
A sleeve based assembled piston as shown in figures 1 and 2, comprising: piston base member 1, axle sleeve 5 and barrel 8, piston base member 1, axle sleeve 5 and barrel 8 adopt components of a whole that can function independently package assembly, can change alone after damaging, and the maintenance cost is low.
As shown in fig. 1, a circle of oil ring mounting groove 3 is formed on the outer circle of the piston base body 1 to mount an oil ring, and a gas ring mounting groove 2 located above the oil ring mounting groove 3 is formed on the outer circle of the piston base body 1 to mount a gas ring, so that the gas tightness of the combustion chamber is improved.
As shown in fig. 2, an annular groove 14 corresponding to the cylinder 8 and located at the bottom of the oil ring mounting groove 3 is arranged on the outer circle of the piston base body 1, the bottom of the annular groove 14 extends to the bottom surface of the piston base body 1, and the bottom of the oil ring mounting groove 3 is communicated with the annular groove 14. An open oil ring mounting groove 3 structure is formed, so that the oil ring can be conveniently disassembled and assembled, the expansion of the oil ring is not needed, and the safety of disassembling and assembling operation is improved.
The barrel 8 is sleeved in the annular groove 14, limiting of an oil ring in the oil ring mounting groove 3 is carried out, and structural stability is improved. The piston base body 1 and the cylinder body 8 are made of the same cast aluminum material, the dead weight is light, the structural strength is high, and in the embodiment, the circle of weight reduction grooves 7 are formed in the lower portion of the outer circle of the cylinder body 8, so that the dead weight is further reduced.
8 excircle bilateral symmetry of barrel is provided with radial extension's first axle sleeve mounting hole 4, be provided with the second axle sleeve mounting hole 10 with first axle sleeve mounting hole 4 concentricity in the piston base member 1, axle sleeve 5 sets up respectively in first axle sleeve mounting hole 4 and extends to second axle sleeve mounting hole 10 in, carries out the axial of piston base member 1 and barrel 8 through axle sleeve 5 spacing, promotes structural stability, avoids the problem that drops of barrel 8.
Be provided with the first jump ring mounting groove 6 that is located 5 outer ends of axle sleeve in the first axle sleeve mounting hole 4, be provided with first jump ring 11 in the first jump ring mounting groove 6, first jump ring 11 carries out the spacing of 5 outer ends of axle sleeve. Be provided with the second jump ring mounting groove 13 that is located axle sleeve 5 the inner in the second axle sleeve mounting hole 10, be provided with second jump ring 9 in the second jump ring mounting groove 13, second jump ring 9 carries out the spacing of axle sleeve 5 the inner, has avoided the pine of axle sleeve 5 to take off.
The shaft sleeve 5 is provided with a pin shaft mounting hole 12, so that the pin shaft can be conveniently mounted, a third clamp spring mounting groove 15 is formed in the pin shaft mounting hole 12, and clamp springs for limiting two ends of the pin shaft can be mounted in the third clamp spring mounting groove 15, so that the axial movement of the pin shaft is avoided.
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. An assembled sleeve-based piston, comprising: piston base member, axle sleeve and barrel, piston base member excircle is provided with round oil ring mounting groove, piston base member excircle is provided with the annular that corresponds with the barrel that is located oil ring mounting groove bottom, the ring bottom extends to piston base member bottom surface, the barrel casing is established in the annular, barrel excircle bilateral symmetry is provided with radial extension's primary shaft cover mounting hole, be provided with in the piston base member with the endocentric secondary shaft cover mounting hole of primary shaft cover mounting hole, the axle sleeve sets up respectively in primary shaft cover mounting hole and extends to in the secondary shaft cover mounting hole.
2. The bushed assembled piston of claim 1, wherein said oil ring mounting groove bottom communicates with a ring groove.
3. The assembled sleeve-based piston as claimed in claim 1, wherein a first snap spring mounting groove is formed in the first sleeve mounting hole and located at an outer end of the sleeve, and a first snap spring is disposed in the first snap spring mounting groove.
4. The assembled shaft sleeve-based piston as claimed in claim 1, wherein a second snap spring mounting groove is formed in the second shaft sleeve mounting hole and located at the inner end of the shaft sleeve, and a second snap spring is arranged in the second snap spring mounting groove.
5. The sleeve based assembled piston of claim 1, wherein said sleeve has a pin receiving hole formed therein, said pin receiving hole having a third snap mounting groove formed therein.
6. The bushed assembled piston of claim 1, wherein said piston base excircle is provided with an air ring mounting groove above an oil ring mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020757251.5U CN212177288U (en) | 2020-05-10 | 2020-05-10 | Assembly piston based on shaft sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020757251.5U CN212177288U (en) | 2020-05-10 | 2020-05-10 | Assembly piston based on shaft sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212177288U true CN212177288U (en) | 2020-12-18 |
Family
ID=73776352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020757251.5U Expired - Fee Related CN212177288U (en) | 2020-05-10 | 2020-05-10 | Assembly piston based on shaft sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212177288U (en) |
-
2020
- 2020-05-10 CN CN202020757251.5U patent/CN212177288U/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 |
Granted publication date: 20201218 Termination date: 20210510 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |