CN102278227A - Piston with abrasion-resistant inlaid ring - Google Patents
Piston with abrasion-resistant inlaid ring Download PDFInfo
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- CN102278227A CN102278227A CN2011102040404A CN201110204040A CN102278227A CN 102278227 A CN102278227 A CN 102278227A CN 2011102040404 A CN2011102040404 A CN 2011102040404A CN 201110204040 A CN201110204040 A CN 201110204040A CN 102278227 A CN102278227 A CN 102278227A
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- piston
- abrasion
- ring
- proof inserted
- ring body
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Abstract
The invention discloses a piston with an abrasion-resistant inlaid ring. The piston mainly comprises a piston body, a pin shaft hole, a single-ring groove, a double-ring groove, a three-ring groove, an abrasion-resistant inlaid ring body and the like; the integral structure of the piston body is the same with that of the traditional piston; and the upper end of the piston body is a head part, the lower end of the piston body is a skirt section, and the middle end of the piston body is a piston pin seat, and the pin shaft hole is arranged for connecting the piston and a connecting rod. According to the invention, the single-ring groove is provided with the abrasion-resistant inlaid ring, compared with the prior art, certain changes of the material section of the abrasion-resistant inlaid ring body, the conformation of the inlaid ring technology and the shape design of the inlaid ring body are performed for the piston provided by the invention, the inlaid ring body is made of nickelic austenitic cast iron, the aluminizing technology at the temperature range 650DEG C-700 DEG C is adopted, the ladder-shaped design is adopted for the shape design of the cross section of the abrasion-resistant inlaid ring body, and the operation fastness of the piston and the whole inlaid ring structure body is ensured, and the application effect is favorable.
Description
(1) technical field
The invention belongs to the fuel engine technical field, be specifically related to a kind of abrasion-proof inserted ring piston of novel structure.
(2) background technique
Piston is fuel engine " heart ", also is one of worst key components and parts of operating conditions in motor.The main function of piston in fuel engine is to bear gas pressure, and at high temperature, high pressure, at a high speed, work under the condition of insufficient lubrication, and radiating condition is very poor, and top surface of contact temperature is up to 700K during work; It is also very big that the while piston head bears gas pressure, and diesel engine also will bear the effect of side pressure up to 6～9MPa; Piston in cylinder so that (8～12m/s) movement velocity is reciprocating, will bear very big additional load under the effect of inertial force.The above-mentioned abominable operating conditions of piston, very easily produce the wearing and tearing of the distortion of piston body and multiple-sealed ring, oil sealing etc. and aging, particularly being in the seal ring in first road, is the easiest appearance wearing and tearing and aging position, and this is the principal element that influences diesel engine condition and piston working life.In recent years, the research that is directed to piston only and seal ring has obtained more achievement, the piston abrasion-proof inserted ring Study on Technology is a kind of effective raising pistons work efficient of carrying out energetically of the manufacturer of automobile fitting for many years with exploitation, increase the service life and promote the new problem of engine operation effect, but the abrasion-proof inserted ring of piston is again a processing technology complexity, production process with high content of technology, and the research of the selection of edge loop material and edge circle technology is one of difficult problem of being promoted of this technology of puzzlement always.The present invention is by to the choose reasonable of piston ring carrier material, and optimized the structure shape at Xiang Quan position, the abrasion-proof inserted ring technology of piston is improved and improves.
(3) summary of the invention
The present invention mainly provides a kind of stable material quality, the with low cost and good abrasion-proof inserted ring piston of edge circle groove structure fastness, and has overcome the deficiency of prior art.Main technical schemes of the present invention is as follows:
A kind of abrasion-proof inserted ring piston mainly is made up of piston only, pin shaft hole, one annular groove, two road annular grooves, three road annular grooves and abrasion-proof inserted ring body etc.The overall structure of piston only is identical with conventional piston, and the upper end is a head, and promptly with the firing chamber contacting part, the lower end is the skirt section, i.e. the targeting part of piston, and middle end is a piston pin boss, is provided with to be used for the pin shaft hole that piston is connected with connecting rod.The present invention is provided with three road annular grooves altogether in the upper end of piston only, and one annular groove and two road annular grooves are as laying seal gas ring, and three road annular grooves are as laying seal oil ring.Cast iron quality and the high temperature of considering the seal gas ring of one annular groove lack lubricated handling characteristics, and the present invention has carried out abrasion-proof inserted ring to one annular groove.
As preferably, abrasion-proof inserted ring body of the present invention uses the high-nickel austenitic cast iron material, and essential element content is: C (2.1-2.7) %, Si (1.8-2.2) %, Mn (1.0-1.5) %, Cr (1.0-1.5) %, Ni (13.5-17.5) %, Cu (5.5-7.5) %.
The present invention is on the abrasion-proof inserted ring technology controlling and process of piston, adopted the alumetizing process of 650 ℃ of-700 ℃ of temperature ranges, in the aluminising process, can guarantee to form best diffusion layer between the Al element of the Fe element of abrasion-proof inserted ring body and piston only, guarantee that the best of abrasion-proof inserted ring body is inlayed fastness.
As preferably, the present invention is provided with in the shape of abrasion-proof inserted ring body cross section and has adopted the trapezoid shaped design, inner ring thickness is greater than outer ring thickness, inner ring is as the inboard of abrasion-proof inserted ring body, can firmly merge after aluminising with the piston only of aluminium matter, the outer ring of abrasion-proof inserted ring body and the periphery of piston only remain on the arc surface, also are provided with the annular groove of laying seal gas ring on the outer ring.
Can understand that by above-described technological scheme compared with the prior art the present invention has certain change on the shaped design of determining, inlaying circle body of abrasion-proof inserted ring body Material Selection, edge circle technology.The edge circle body material of selecting for use, compare with original technology, the abrasion-proof inserted ring physical efficiency that this material is made and the aluminum alloy material of piston only keep best coupling on expansion coefficient, can be under the effect of the cooling and heating load of alternation and mechanical load, guarantee not produce between abrasion-proof inserted ring body and the aluminium piston only and become flexible even break-off.
The present invention adopts 650 ℃-700 ℃ temperature range in the aluminising operation of edge circle technology, effectively avoided Fe, Al element the two separately to the different technology difficult problem of the other side's diffusion velocity, can not produce the problem that causes abrasion-proof inserted ring body size to dwindle soon to Al Elements Diffusion speed because of the Fe element.
The trapezoid shaped Cross section Design of abrasion-proof inserted ring body among the present invention has increased the mechanical cohesive bond fastness between abrasion-proof inserted ring body and aluminium piston only, can guarantee the work fastness of whole edge coil structures body in the reciprocating motion of the pistons of fierceness, and effect is good.
(4) description of drawings
Fig. 1 is the plan view of abrasion-proof inserted ring piston
Fig. 2 is the partial enlarged view of abrasion-proof inserted ring body
(5) embodiment
A kind of abrasion-proof inserted ring piston of the present invention as shown in drawings, mainly is made up of piston only 1, pin shaft hole 2, one annular groove 3, two road annular grooves 4, three road annular grooves 5 and abrasion-proof inserted ring body 6 etc.The overall structure of piston only 1 is identical with conventional piston, and the upper end is a head, and promptly with the firing chamber contacting part, the lower end is the skirt section, i.e. the targeting part of piston, and middle end is a piston pin boss, is provided with to be used for the pin shaft hole 2 that piston is connected with connecting rod.The present invention is provided with three road annular grooves in the upper end portion of piston only 1, one annular groove 3 and two road annular grooves 4 are as the mounting groove of seal gas ring, and three road annular grooves are as laying seal oil ring.Consider the cast iron quality of the seal gas ring that one annular groove 3 laid, the present invention has carried out abrasion-proof inserted ring to one annular groove 3.
As preferably, abrasion-proof inserted ring body 6 of the present invention uses the high-nickel austenitic cast iron materials, and essential element content is: C (2.1-2.7) %, Si (1.8-2.2) %, Mn (1.0-1.5) %, Cr (1.0-1.5) %, Ni (13.5-17.5) %, Cu (5.5-7.5) %.
As preferably, the present invention is on the abrasion-proof inserted ring technology controlling and process of piston, adopted the alumetizing process of 650 ℃ of-700 ℃ of temperature ranges, in the aluminising process, can guarantee to form best diffusion layer between the Al element of the Fe element of abrasion-proof inserted ring body 6 and piston only 1, guarantee that the best of abrasion-proof inserted ring body 6 is inlayed fastness.
As preferably, the present invention is provided with at the shape of cross section of abrasion-proof inserted ring body 6 and has adopted the trapezoid shaped design, inner ring thickness is greater than outer ring thickness, inner ring is as the inboard of abrasion-proof inserted ring body 6, can firmly merge after aluminising with the piston only 1 of aluminium matter, the periphery of the outer ring of abrasion-proof inserted ring body 6 and piston only 1 remains on the arc surface, also is provided with one annular groove 3 of laying seal gas ring on the outer ring.
Claims (3)
1. abrasion-proof inserted ring piston, comprise piston only, pin shaft hole, one annular groove, two road annular grooves, three road annular grooves and abrasion-proof inserted ring body, it is characterized in that: the middle end of piston only is provided with and is used for the pin shaft hole that piston is connected with connecting rod, the upper end of piston only is provided with three road annular grooves altogether, one annular groove and two road annular grooves are as laying seal gas ring, and three road annular grooves are as laying seal oil ring.
2. a kind of abrasion-proof inserted ring piston according to claim 1, it is characterized in that: one annular groove carried out abrasion-proof inserted ring, the abrasion-proof inserted ring body uses the high-nickel austenitic cast iron material, essential element content is: C (2.1-2.7) %, Si (1.8-2.2) %, Mn (1.0-1.5) %, Cr (1.0-1.5) %, Ni (13.5-17.5) %, Cu (5.5-7.5) %.
3. a kind of abrasion-proof inserted ring piston according to claim 1, it is characterized in that: the shape setting of abrasion-proof inserted ring body cross section has been adopted the trapezoid shaped design, inner ring thickness is greater than outer ring thickness, inner ring is as the inboard of abrasion-proof inserted ring body, can firmly merge after aluminising with the piston only of aluminium matter, the outer ring of abrasion-proof inserted ring body and the periphery of piston only remain on the arc surface, also are provided with the annular groove of laying seal gas ring on the outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102040404A CN102278227A (en) | 2011-07-18 | 2011-07-18 | Piston with abrasion-resistant inlaid ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102040404A CN102278227A (en) | 2011-07-18 | 2011-07-18 | Piston with abrasion-resistant inlaid ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102278227A true CN102278227A (en) | 2011-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102040404A Pending CN102278227A (en) | 2011-07-18 | 2011-07-18 | Piston with abrasion-resistant inlaid ring |
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|---|---|
| CN (1) | CN102278227A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996279A (en) * | 2012-12-26 | 2013-03-27 | 淄博柴油机总公司 | Diesel engine and piston |
| CN104110323A (en) * | 2014-04-01 | 2014-10-22 | 马勒技术投资(中国）有限公司 | Piston structure capable of improving anti-seize capacity of pin hole |
-
2011
- 2011-07-18 CN CN2011102040404A patent/CN102278227A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996279A (en) * | 2012-12-26 | 2013-03-27 | 淄博柴油机总公司 | Diesel engine and piston |
| CN104110323A (en) * | 2014-04-01 | 2014-10-22 | 马勒技术投资(中国）有限公司 | Piston structure capable of improving anti-seize capacity of pin hole |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111214 |