CN209293923U - A kind of open whole friction welding (FW) forging steel pistons - Google Patents
A kind of open whole friction welding (FW) forging steel pistons Download PDFInfo
- Publication number
- CN209293923U CN209293923U CN201822218126.2U CN201822218126U CN209293923U CN 209293923 U CN209293923 U CN 209293923U CN 201822218126 U CN201822218126 U CN 201822218126U CN 209293923 U CN209293923 U CN 209293923U
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- Prior art keywords
- piston
- slot
- friction welding
- ring groove
- piston crown
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- 238000003466 welding Methods 0.000 title claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 20
- 239000010959 steel Substances 0.000 title claims abstract description 20
- 238000005242 forging Methods 0.000 title abstract description 10
- 239000004519 grease Substances 0.000 claims abstract description 19
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000002485 combustion reaction Methods 0.000 claims abstract description 9
- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims abstract description 9
- 235000012489 doughnuts Nutrition 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 12
- 239000007787 solid Substances 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 238000005275 alloying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a kind of open whole friction welding (FW)s to forge steel pistons, including piston crown and piston skirt, the piston crown is fixedly connected with the piston skirt by friction welding (FW), the piston crown upper end center is equipped with combustion chamber, snap ring groove is equipped between the piston crown and the piston skirt, it is connected on the upside of the snap ring groove with cooling grease chamber, the cooling grease chamber is arranged in piston crown, the piston skirt center is equipped with piston pin hole, piston crown circumference lower middle portion is equipped with oil ring groove, piston crown oil ring groove upper end is equipped with compression.Then the utility model gets rid of extra blank material using the solid forging blank of 38MnVS6 material by mach method, achieve the purpose that drop weight under the premise of not reducing intensity itself, and increases cooling grease chamber in piston crown and reduce the maximum temperature degree on head and reduce piston thermal expansion amount.
Description
Technical field
The utility model relates to piston manufacturing techniques field, more particularly to a kind of open whole friction welding (FW) forged steel are living
Plug.
Background technique
Forging steel piston is generally welding structure after solid forging or seperated forging at this stage.Integral forge type generally forges
Machining obtains finished product after integral workblank, and welded type blank is divided into head and skirt section two parts are adopted after two parts respectively roughing
Two parts, which are combined, with welding procedure is then integrally machining acquisition finished product；One-piece piston weight is larger, inadaptable to start
The light-weighted requirement of the machine and thicker heat dissipation performance of piston crown is bad be easy to cause after thermal expansion the problem of squeezing cylinder；Split type welded is living
Although plug, which reduces, can inevitably have welding defect in overall weight but welding process, deposit in the subsequent use process
In the risk to crack from weld, and seperated welding procedure is longer to the welding process state modulator more stringent inspection after welding period
It is unsuitable for producing in batches.
Utility model content
The utility model proposes a kind of open whole friction welding (FW)s to forge steel pistons.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of open whole friction welding (FW) forges steel pistons, including piston crown and piston skirt, the piston crown and
The piston skirt is fixedly connected by friction welding (FW), the piston crown upper end center be equipped with combustion chamber, the piston crown with
It is equipped with snap ring groove between the piston skirt, is connected on the upside of the snap ring groove with cooling grease chamber, the cooling grease chamber is set
It sets in piston crown, the piston skirt center is equipped with piston pin hole, and piston crown circumference lower middle portion is equipped with oil ring
Slot, piston crown oil ring groove upper end are equipped with compression.
Further, the combustion chamber is divided into two parts, and top half is a round hole, and lower half portion is a baked donut shape
Slot, the round hole are connected with the baked donut shape slot.
Further, the maximum gauge of the round hole is less than the maximum gauge of the baked donut shape slot.
Further, the cooling grease chamber is annular groove, and direction width of the annular groove edge far from snap ring groove is gradually
Reduce.
Further, the piston crown is set there are two oil ring groove.
Further, the piston crown upper end is plane.
Further, the snap ring groove is divided into upper layer slot, middle layer slot and lower layer's slot, the upper layer slot and cooling grease chamber phase
Connection, lower layer's slot are connect with piston skirt, and the middle layer slot position is between upper layer slot and lower layer's slot.
Further, the depth of lower layer's slot is most deep, and the depth of the middle layer slot is located at depth and the lower layer of upper layer slot
Between the depth of slot.
Further, the depth of the compression is equal to the depth of the oil ring groove.
Further, the piston crown and piston skirt are 38MnVS6 material.
Usefulness: then the utility model passes through mach method using the solid forging blank of 38MnVS6 material
Extra blank material is got rid of, drop weight is achieved the purpose that under the premise of not reducing intensity itself, and increase in piston crown
What cooling grease chamber reduced the maximum temperature degree on head reduces piston thermal expansion amount.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of the utility model.
In figure: 1, piston crown, 2, piston skirt, 3, piston pin hole, 4, compression, 5, oil ring groove, 6, combustion chamber, 7, cold
But grease chamber, 8, snap ring groove.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
Referring to Fig.1, a kind of open whole friction welding (FW) forges steel pistons, including piston crown 1 and piston skirt 2, described
Piston crown 1 is fixedly connected with the piston skirt 2 by friction welding (FW), and 1 upper end center of piston crown is equipped with combustion chamber 6,
Snap ring groove 8,8 upside of snap ring groove and cooling 7 phase of grease chamber are equipped between the piston crown 1 and the piston skirt 2
Connection, in piston crown 1,2 center of piston skirt is equipped with piston pin hole 3, the piston crown for the cooling setting of grease chamber 7
1 circumference lower middle portion is equipped with oil ring groove 5, and 1 oil ring groove of piston crown, 5 upper end is equipped with compression 4.The combustion chamber 6 is divided
For two parts, top half is a round hole, and lower half portion is a baked donut shape slot, the round hole and the baked donut shape slot
It is connected.The maximum gauge of the round hole is less than the maximum gauge of the baked donut shape slot.The cooling grease chamber 7 is annular
Slot, the annular groove are gradually reduced along the direction width far from snap ring groove 8.The piston crown 1 is set there are two oil ring groove 5.
1 upper end of piston crown is plane.The snap ring groove 8 divides for upper layer slot, middle layer slot and lower layer's slot, the upper layer slot with it is cold
But grease chamber 7 is connected, and lower layer's slot is connect with piston skirt 2, and the middle layer slot position is between upper layer slot and lower layer's slot.It is described
The depth of lower layer's slot is most deep, and the depth of the middle layer slot is located between the depth of upper layer slot and the depth of lower layer's slot.The compression ring
The depth of slot 4 is equal to the depth of the oil ring groove 5；The piston crown 1 and piston skirt 2 are 38MnVS6 material.
The processing process of piston is as follows: material block is made in 1. steel billets, and 2. material blocks heat, 3. pairs of material blocks progress blockings, and 4.
To blocking finish-forging, 5. trimmings, 6. school shapes, 7. blank normalized treatments, 8. sand removals, 9. coarse-fine vehicle piston crowns 1, compression 4, oil ring
Slot 5 and combustion chamber 6,10. coarse-fine vehicle piston skirts 2, snap ring groove 8 and cooling grease chamber 7,11. bore boring piston pin hole 3 and circlip
Slot, 12. alramentings, 13. purged and packed finished products.
The 38MnVS6 material that the utility model uses is to control cold work using micro-alloying technology and control forging for non-hardened and tempered steel
Skill, which combines, saves modifier treatment process, has not only saved consumed mass energy in heat treatment process but also has also simplified work
Sequence increases economic benefit.The addition of piston split shed annular groove 8 and cooling grease chamber 7 reduces piston total quality, meets and starts
The light-weighted technical requirements of machine；What cooling grease chamber 7 can take away that a large amount of head heat avoids that head overheating is possible to occur squeezes
Cylinder phenomenon；The blank form of solid forging avoids the welding defect being likely to occur in welding.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (10)
1. a kind of open whole friction welding (FW) forges steel pistons, which is characterized in that including piston crown and piston skirt, the work
Plug head is fixedly connected with the piston skirt by friction welding (FW), and the piston crown upper end center is equipped with combustion chamber, the work
It is equipped with snap ring groove between plug head and the piston skirt, is connected on the upside of the snap ring groove with cooling grease chamber, it is described cold
But grease chamber setting is equipped with piston pin hole, piston crown circumference lower middle portion in piston crown, the piston skirt center
Equipped with oil ring groove, piston crown oil ring groove upper end is equipped with compression.
2. the open whole friction welding (FW) of one kind according to claim 1 forges steel pistons, which is characterized in that the combustion chamber
It is divided into two parts, top half is a round hole, and lower half portion is a baked donut shape slot, the round hole and the baked donut shape
Slot is connected.
3. the open whole friction welding (FW) of one kind according to claim 2 forges steel pistons, which is characterized in that the round hole
Maximum gauge be less than the baked donut shape slot maximum gauge.
4. the open whole friction welding (FW) of one kind according to claim 1 forges steel pistons, which is characterized in that the cooling oil
Room is annular groove, and the annular groove is gradually reduced along the direction width far from snap ring groove.
5. the open whole friction welding (FW) of one kind according to claim 1 forges steel pistons, which is characterized in that the piston head
Portion is set there are two oil ring groove.
6. the open whole friction welding (FW) of one kind according to claim 1 forges steel pistons, which is characterized in that the piston head
Portion upper end is plane.
7. the open whole friction welding (FW) of one kind according to claim 1 forges steel pistons, which is characterized in that the split ring
Slot is divided into upper layer slot, middle layer slot and lower layer's slot, and the upper layer slot is connected with cooling grease chamber, and lower layer's slot and piston skirt connect
It connects, the middle layer slot position is between upper layer slot and lower layer's slot.
8. the open whole friction welding (FW) of one kind according to claim 7 forges steel pistons, which is characterized in that lower layer's slot
Depth it is most deep, the depth of the middle layer slot is located between the depth of upper layer slot and the depth of lower layer's slot.
9. the open whole friction welding (FW) of one kind according to claim 1 forges steel pistons, which is characterized in that the compression
Depth be equal to the oil ring groove depth.
10. the open whole friction welding (FW) of one kind according to claim 1 forges steel pistons, which is characterized in that the piston
Head and piston skirt are 38MnVS6 material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822218126.2U CN209293923U (en) | 2018-12-27 | 2018-12-27 | A kind of open whole friction welding (FW) forging steel pistons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822218126.2U CN209293923U (en) | 2018-12-27 | 2018-12-27 | A kind of open whole friction welding (FW) forging steel pistons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209293923U true CN209293923U (en) | 2019-08-23 |
Family
ID=67649264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822218126.2U Active CN209293923U (en) | 2018-12-27 | 2018-12-27 | A kind of open whole friction welding (FW) forging steel pistons |
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|---|---|
| CN (1) | CN209293923U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112338460A (en) * | 2020-10-29 | 2021-02-09 | 郑州煤矿机械集团股份有限公司 | Machining method for integral piston rod of non-support jack |
-
2018
- 2018-12-27 CN CN201822218126.2U patent/CN209293923U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112338460A (en) * | 2020-10-29 | 2021-02-09 | 郑州煤矿机械集团股份有限公司 | Machining method for integral piston rod of non-support jack |
| CN112338460B (en) * | 2020-10-29 | 2023-08-04 | 郑州煤矿机械集团股份有限公司 | Processing method of integral piston rod of non-support jack |
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