CN202118232U - Piston - Google Patents
Piston Download PDFInfo
- Publication number
- CN202118232U CN202118232U CN 201120174052 CN201120174052U CN202118232U CN 202118232 U CN202118232 U CN 202118232U CN 201120174052 CN201120174052 CN 201120174052 CN 201120174052 U CN201120174052 U CN 201120174052U CN 202118232 U CN202118232 U CN 202118232U
- Authority
- CN
- China
- Prior art keywords
- piston
- skirt
- screw bolt
- piston skirt
- head
- 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 piston, which comprises a piston top and a piston skirt. The piston top and the piston skirt are fixedly connected through a connecting screw bolt and a pin, three gas ring grooves are arranged on the piston top, and an oil ring groove is arranged on the piston skirt. Materials with high strength and low temperature bulge are used in the piston with the structural mode, the cylinder diameter of the existing piston body of the kinds is in a range from 160mm to 400mm, the piston can substitute for combined pistons, enables cost to be lower, can continually work under severe working conditions such as heavy oil burning, high exploding pressure.
Description
Technical field
The utility model relates to a kind of piston.
Background technique
In the existing technology, the piston head of piston body and piston skirt are provided with a plurality of groove structures, cause this kind piston body complicacy, and cost is higher, and it is bigger to assemble preceding slit, does not meet matching requirements.
Summary of the invention
The purpose of the utility model provides a kind of piston.
The utility model for realizing the technological scheme that above-mentioned purpose adopted is: a kind of piston; Comprise piston head and piston skirt; Said piston head is fixedly connected with pin through being connected double-screw bolt with piston skirt, and said piston head is provided with three compressions, and said piston skirt is provided with an oil ring groove.
Said connection double-screw bolt is fixedly connected piston head and piston skirt through nut.
Be provided with elastic sleeve between the top of said connection double-screw bolt and piston skirt.
Said piston head and piston skirt joint are provided with seal ring.
A kind of piston of the utility model; The material that present high tenacity, low temperature expand has been used for this structural type piston; At present this type of piston body does not wait from the 160-400mm cylinder diameter, and this kind piston can the alternative combinations piston, makes cost more cheap; And can be under abominable operating mode such as burning heavy oil, high detonation pressure, continual work.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is a kind of piston structure schematic representation of the utility model.
Embodiment
As shown in Figure 1, the utility model piston body comprises piston head 1, piston skirt 2, seal ring 3, connects double-screw bolt 4 and spring housing 5; Piston head 1 is fixedly connected with pin 7 through being connected double-screw bolt 4 with piston skirt 2; Piston head 1 is provided with three compressions 8, and piston skirt 2 is provided with an oil ring groove 9, connects double-screw bolt 4 and is fixedly connected piston head 1 and piston skirt 2 through attaching nut 6; Be provided with elastic sleeve 5 between the top of connection double-screw bolt 4 and piston skirt 2, piston head 1 is provided with seal ring 3 with piston skirt 2 joints.
Claims (4)
1. piston, it is characterized in that: comprise piston head and piston skirt, said piston head is fixedly connected with pin through being connected double-screw bolt with piston skirt, and said piston head is provided with three compressions, and said piston skirt is provided with an oil ring groove.
2. a kind of piston according to claim 1 is characterized in that: said connection double-screw bolt is fixedly connected piston head and piston skirt through the attaching nut.
3. a kind of piston according to claim 1 is characterized in that: be provided with elastic sleeve between the top of said connection double-screw bolt and piston skirt.
4. a kind of piston according to claim 1 is characterized in that: said piston head and piston skirt joint are provided with seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120174052 CN202118232U (en) | 2011-05-27 | 2011-05-27 | Piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120174052 CN202118232U (en) | 2011-05-27 | 2011-05-27 | Piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202118232U true CN202118232U (en) | 2012-01-18 |
Family
ID=45459299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120174052 Expired - Fee Related CN202118232U (en) | 2011-05-27 | 2011-05-27 | Piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202118232U (en) |
-
2011
- 2011-05-27 CN CN 201120174052 patent/CN202118232U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20140527 |