CN107160117A - One kind is without oily piston and its processing technology and piston compressor - Google Patents
One kind is without oily piston and its processing technology and piston compressor Download PDFInfo
- Publication number
- CN107160117A CN107160117A CN201710600559.1A CN201710600559A CN107160117A CN 107160117 A CN107160117 A CN 107160117A CN 201710600559 A CN201710600559 A CN 201710600559A CN 107160117 A CN107160117 A CN 107160117A
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- China
- Prior art keywords
- piston
- ring body
- oil
- allow
- machining process
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/10—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
Abstract
The invention discloses one kind without oily piston and its processing technology and piston compressor, the ring body of piston is formed by compacting, makes the structural strength of ring body higher, so that high temperature resistant and the performance of rub resistance are more preferable；By being processed to inner wall of ring body, it can be interference fitted with the formation of piston appearance, so that it is even closer that it can be connected, heating expansion, ring body can be nested into easily on piston, can carry out tightening piston after cooling, the setting of gluing makes the adhesion strength of ring body higher, so as to it be allowed to come off easily, allow the service life of piston to be improved, carry out reheating, allow piston, ring body mutually to be merged with glue-line, and allow adhesive curing, more stable purpose is bonded so as to reach.By the cutting and punching of outer surface, the size for allowing it to can adapt to cylinder, this piston will not allow ring body to come off easily, and its ring body structurc intensity is high, cause the service life of piston high, equally, allow piston compressor to improve its service life.
Description
Technical field
It is more particularly to a kind of to be compressed without oily piston and its processing technology and piston the present invention relates to a kind of air compressor
Machine.
Background technology
Compressor is the equipment that power source is provided for pneumatic member, and existing compressor largely uses piston, passes through piston
Gas in piston cylinder is compressed, so as to achieve the goal.But existing piston is lubricated using lubricating oil mostly,
Piston is allowed to reduce frictional force during slip, but in this process, the effect of lubricating oil is important, and
During long-play, easily there is the situation for burning out condensation in lubricating oil, so as to allow a series of parts of piston to be damaged.For
The problem is solved, piston face is handled, self-lubricating material is coated on its surface, so as to play a part of lubrication, reaches
To the purpose of oil-free lubrication, but directly by the way of coating, easily there is stomata in its surface, and adhesive force is weaker,
Therefore, the service life of piston is reduced.Therefore need to make improvements.
The content of the invention
An object of the present invention is to provide a kind of oil-free piston machining process, and height is put by allowing on piston for the technique
The ring body of intensity, allows piston service life to extend.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of oil-free piston machining process, comprises the following steps：
S1, self-lubricating piston bush ring body compacting；
S2, inner wall of ring body working process；
S3, by ring body carry out heating expansion；
S4, in the outer surface of piston gluing is carried out, and cooled down after ring body is enclosed on into the outer surface of piston；
S5, the piston cooled down is integrally subjected to reheating, then cooled down；
S6, ring body surface is cut；
S7, drilling forming.
By using above-mentioned technical proposal, by compacting, make the structural strength of ring body higher, so that high temperature resistant and resistance to
The performance of friction is more preferable；By being processed to inner wall of ring body, it can be interference fitted with the formation of piston appearance, so as to allow it
It can connect even closer, ring body can be nested into easily on piston, can carry out tightening work after cooling for heating expansion
Plug, the setting of gluing makes the adhesion strength of ring body higher, so as to it will not be allowed to come off easily, allows the service life of piston to be carried
Height, carries out reheating, allows piston, ring body mutually to be merged with glue-line, and allows adhesive curing, thus reach bond it is more stable
Purpose.By the cutting and punching of outer surface, the size for allowing it to can adapt to cylinder.
The present invention is further arranged to：The polytetrafluoroethylene (PTFE), glass fibre, molybdenum disulfide and copper powder with such as
Under：
The g of polytetrafluoroethylene (PTFE) 67
The g of glass fibre 3
The g of molybdenum disulfide 10
The g of copper powder 20.
By using above-mentioned technical proposal, polytetrafluoroethylene (PTFE) has resistant to elevated temperatures feature, and its coefficient of friction is extremely low, as
Main material allows ring body to have the characteristic of self-lubricating, and being capable of high temperature resistant.Glass fibre is a kind of material of high intensity, its thermal insulation
Can be good, it is that ring body puies forward the high heat resistance of work, allows its intensity to increase.Molybdenum disulfide is important kollag, after being added into
The greasy property of ring body can be improved.Copper powder is metal material, and it coordinates with glass fibre, can provide high rigidity for ring body,
And improve wearability.
The present invention is further arranged to：After inner wall of ring body is cut in S2, ring body inner surface is entered using sodium naphthalene solution
Row processing, ring body is put into sodium naphthalene solution and carries out immersion 10-20 minutes, and ionized water and three chloroethenes are used after being then taken out
Alkene is cleaned.
By using above-mentioned technical proposal, sodium naphthalene solution is eroded to ring body, so that its inner surface can be entered with glue
Some organic matters of attachment etc., can be removed by row adhesion using ionized water and trichloro ethylene cleaning.
The present invention is further arranged to：Ring body Jing Guo S2 step process is put into baking oven to be heated, using 130-150
DEG C temperature heat 50-70 minutes.
By using above-mentioned technical proposal, ring body is heated, ring body can be allowed to be expanded, due to the performance of ring body
More stable, therefore, the heat time is long, and it, which can be expanded into, can easily be nested into the upper size of piston.
The present invention is further arranged to：The glue applied in S4 uses high-temperature plastic.
By using above-mentioned technical proposal, due to piston motion during can be rubbed with cylinder surface, its energy
It is enough to produce very big frictional heat, using high-temperature plastic can allow glue under conditions of high temperature it is more stable, so as to allow ring body
Connection with piston is more stable, and then allows its service life to increase.
The present invention is further arranged to：The piston cooled down is put into baking oven in S5 and heated, heating-up temperature is
50-70℃。
By using above-mentioned technical proposal, at a temperature of 50-70 DEG C, ring body is allowed not produce excessive expansion, now,
Molecule can be allowed by warm-up movement, allow glue fully to be bonded with piston face and inner wall of ring body, adhesive curing is allowed.
The present invention is further arranged to：Ring body exterior surface is cut in S6, after the completion of cutting, having to piston is used for
The lead to the hole site of installing connecting rods pin carries out pressing development, then is cut along the shadow extruded, completes drill process.
By using above-mentioned technical proposal, outer surface cutting can allow the size of ring body to be adapted to cylinder, further, since
There is the pin-and-hole for being used for facilitating installing connecting rods on piston, therefore, punching is needed in ring body, makes it corresponding with pin-and-hole progress, adopts
With pressing development, pin-and-hole position indent is allowed, and there is the support of piston inner wall on piston face, will not deform upon, so that
Cut according to shadow, complete punching.
The second object of the present invention is to provide a kind of piston, by using above-mentioned technique, service life is made long
Piston.
A kind of piston, is constituted using processing technology described above.
By using above-mentioned technical proposal, the ring body structurc intensity on piston is high, and will not skid off easily, so that it makes
Use long lifespan.
The third object of the present invention is to provide a kind of piston compressor, using above-mentioned piston, allows use longevity of compressor
Life is improved.
A kind of piston compressor, its piston uses piston described above.
By using above-mentioned technical proposal, piston is the critical piece of compressor, and its general working life can determine compression
The service life of machine, so that in the piston using the high life, its service life can also be improved to a certain extent.
In summary, the invention has the advantages that：1st, oil-free piston ring body is formed by suppressing, and its intensity is high,
So as to which antifriction performance is high, it will not damage easily；2nd, by both sides high temperature, ring body closely can be socketed with piston, prevent
Only it is operationally skidded off；3rd, by the way of development punching, punching and the dislocation of pin-and-hole is prevented, makes punch position more accurate
Really.
Brief description of the drawings
Fig. 1 is the Composition block diagram of embodiment 1；
Fig. 2 is shaping flow three-dimensional structure diagram.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
Embodiment 1：A kind of oil-free piston machining process, comprises the following steps：
S1, self-lubricating piston bush ring body compacting；
S2, inner wall of ring body working process；
S3, by ring body carry out heating expansion；
S4, in the outer surface of piston gluing is carried out, and cooled down after ring body is enclosed on into the outer surface of piston；
S5, the piston cooled down is integrally subjected to reheating, then cooled down；
S6, ring body surface is cut, its surface size can be socketed with cylinder block；
S7, drilling forming, by ring body on piston original pin-and-hole（For installing connecting rods pin）Position got through.
Wherein, ring body is constituted using polytetrafluoroethylene (PTFE), glass fibre, molybdenum disulfide and copper powder, and is matched as follows：
The g of polytetrafluoroethylene (PTFE) 67
The g of glass fibre 3
The g of molybdenum disulfide 10
The g of copper powder 20.
In S2, inner wall of ring body is cut, allows the internal diameter of inwall to be adapted to the size of piston, and allow it can
Form interference fit；It is processed during cutting using lathe, its outer wall is gripped, lathe tool is extend into inwall,
Inwall is subjected to turning.After the completion of inner wall size turning, then using sodium naphthalene solution（Tetrahydrofuran solution is added into refined naphthalene, stirred
It is fully dissolved, be filled with nitrogen protection, then metallic sodium is added thereto, slowly stir, form sodium naphthalene solution）To table in ring body
Face is handled, and ring body is put into sodium naphthalene solution and carries out immersion 10-20 minutes, typically at 15 minutes, after being then taken out
Cleaned using ionized water and trichloro ethylene.After over cleaning, allow the inside of ring body that there is certain adhesion.
Ring body Jing Guo S2 step process is put into baking oven to be heated, using 130-150 DEG C of 50-70 points of temperature heating
Clock；General heating 60 minutes, temperature is at 145 DEG C.After ring body heating, its expanded by heating, so as to allow it can be easily
It is nested on piston.When ring body being put into baking oven again being heated, while coating one layer of high-temperature plastic for piston face, it is adopted
It is coated with polytetrafluoroethylene (PTFE) adhesive glue.After the completion of the coating of polytetrafluoroethylene (PTFE) adhesive glue, the ring body set after expansion will be heated
Enter onto piston, and make its end concordant with pistons end progress, in this process, the general lower air cylinder that borrows is carried out.Most
After put it into indoor carry out natural cooling, be cooled to room temperature, allow ring body after the cooling period by tight beam on piston.
After ring body is nested on piston, although ring body can be fixed, but glue does not play due work
With, easily operationally, allow ring body to skid off, in order to which friendship can be fully connected with ring body and piston, in S5 steps,
Piston is placed again into baking oven and heated.In this process, heating-up temperature uses 50-70 DEG C, generally 65 DEG C, allows
The molecule of glue, inner wall of ring body and piston face carries out minute warm-up movement, so as to allow it to be blended, glue can be solidified, from
And it is more firm to allow ring body to bond.After 4 hours, it is taken out from baking oven, interior is put into, carry out natural cooling, to normal
Temperature.
Piston face is firmly fixed to after cooling down again, allowing ring body to compare, in order to allow piston to adapt to gas
The size of cylinder to ring body exterior surface, it is necessary to carry out turning processing, and turning to certain size it can be matched somebody with somebody with cylinder
Close.Now, turning is carried out to ring body using lathe, after turning is complete, then be ground, allow the surface smoother of ring body, subtracted
Few frictional force.The pin-and-hole for installing connecting rods is provided with piston, pin-and-hole is connected with piston exterior, facilitates link pin
Installation, accordingly, it would be desirable to be punched to the position.When being punched in outer surface, it is easily because the position with pin-and-hole is deposited
Cause the situation that punching misplaces in certain error.In order to solve the problem, before punching, first punch position is determined
Position.Piston is fixed, using cylinder briquetting, piston face gently pressed, is not having porose position outer due to piston
The conflict of wall, so as to allow it not produce deformation.And when being pushed in pin-and-hole position, ring body can form indent, and due to ring
Body is now in the state of tightening, after indent is formed will not resilience, so as to form pin-and-hole shadow, complete developing process.Finally, root
According to ring body surface and the shadow of the pin-and-hole of formation, its profile is cut off, so that pin-and-hole be got through.Finally, air exercise hole position
Put and somewhat modified.
Embodiment 2：A kind of piston, it uses the technique described in embodiment 1 to be made.
Embodiment 3：A kind of piston compressor, including the piston described in embodiment 2.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
Member can make the modification without creative contribution to the present embodiment as needed after this specification is read, but as long as at this
All protected in the right of invention by Patent Law.
Claims (9)
1. a kind of oil-free piston machining process, it is characterized in that comprising the following steps：
S1, self-lubricating piston bush ring body compacting；
S2, inner wall of ring body working process；
S3, by ring body carry out heating expansion；
S4, in the outer surface of piston gluing is carried out, and cooled down after ring body is enclosed on into the outer surface of piston；
S5, the piston cooled down is integrally subjected to reheating, then cooled down；
S6, ring body surface is cut；
S7, drilling forming.
2. oil-free piston machining process according to claim 1, it is characterized in that：The polytetrafluoroethylene (PTFE), glass fibre, two
The proportioning of molybdenum sulfide and copper powder is as follows：
The g of polytetrafluoroethylene (PTFE) 67
The g of glass fibre 3
The g of molybdenum disulfide 10
The g of copper powder 20.
3. oil-free piston machining process according to claim 1, it is characterized in that：After inner wall of ring body is cut in S2, adopt
Ring body inner surface is handled with sodium naphthalene solution, ring body is put into sodium naphthalene solution and carries out immersion 10-20 minutes, then by it
Cleaned after taking-up using ionized water and trichloro ethylene.
4. oil-free piston machining process according to claim 1, it is characterized in that：Ring body Jing Guo S2 step process is put into
Baking oven is heated, and is heated 50-70 minutes using 130-150 DEG C of temperature.
5. oil-free piston machining process according to claim 1, it is characterized in that：The glue applied in S4 uses high-temperature plastic.
6. oil-free piston machining process according to claim 1, it is characterized in that：The piston cooled down is put into baking in S5
Heated in case, heating-up temperature is 50-70 DEG C.
7. oil-free piston machining process according to claim 1, it is characterized in that：Ring body exterior surface is cut in S6,
After the completion of cutting, have to piston and carry out pressing development for the lead to the hole site of installing connecting rods pin, then carried out along the shadow extruded
Cutting, completes drill process.
8. a kind of piston, it is characterized in that：Constituted using any one processing technology as described in claim 1-8.
9. a kind of piston compressor, it is characterized in that：Its piston uses piston as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710600559.1A CN107160117A (en) | 2017-07-21 | 2017-07-21 | One kind is without oily piston and its processing technology and piston compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710600559.1A CN107160117A (en) | 2017-07-21 | 2017-07-21 | One kind is without oily piston and its processing technology and piston compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107160117A true CN107160117A (en) | 2017-09-15 |
Family
ID=59817201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710600559.1A Pending CN107160117A (en) | 2017-07-21 | 2017-07-21 | One kind is without oily piston and its processing technology and piston compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107160117A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110655741A (en) * | 2019-10-22 | 2020-01-07 | 陕西科技大学 | Multi-element inorganic material filling modified PTFE composite material and preparation method thereof |
| CN111089044A (en) * | 2020-01-03 | 2020-05-01 | 广州万宝集团压缩机有限公司 | Compressor piston and manufacturing method |
| CN112605616A (en) * | 2020-12-18 | 2021-04-06 | 哈尔滨电气动力装备有限公司 | Machining process of large-scale shielding motor thrust disc |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110655741A (en) * | 2019-10-22 | 2020-01-07 | 陕西科技大学 | Multi-element inorganic material filling modified PTFE composite material and preparation method thereof |
| CN111089044A (en) * | 2020-01-03 | 2020-05-01 | 广州万宝集团压缩机有限公司 | Compressor piston and manufacturing method |
| CN112605616A (en) * | 2020-12-18 | 2021-04-06 | 哈尔滨电气动力装备有限公司 | Machining process of large-scale shielding motor thrust disc |
| CN112605616B (en) * | 2020-12-18 | 2021-10-26 | 哈尔滨电气动力装备有限公司 | Machining process of large-scale shielding motor thrust disc |
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Application publication date: 20170915 |